CN109890634B - Air conditioning unit - Google Patents

Abstract

The purpose of the present invention is to protect the electrical components of an air conditioning unit and to suppress the enlargement of an installation area required for installing the air conditioning unit. The air conditioning unit is mounted on a predetermined vehicle mounting portion (82) that forms a part of a vehicle interior (80), is disposed inside the vehicle interior, and performs air conditioning inside the vehicle interior. The air conditioning unit is provided with an air passage forming part (20) which forms an air passage (20a) for flowing air-conditioning air blown into the interior of the vehicle compartment. The air conditioning unit also includes an intermediate space forming wall (22) that forms an intermediate space (22a) disposed between the ventilation path and the vehicle mounting portion, and electrical components (32, 36, 38, 142). At least a part of the electric component is disposed in the intermediate space. The intermediate space forming wall extends from the ventilation path forming portion toward the vehicle mounting portion side, and surrounds the intermediate space.

Description

Air conditioning unit

Cross reference to related applications

The present application is based on Japanese patent application No. 2016-209802, 2016, 26, 12, 23, 2016, and 2016, 250242, which were applied to the same, 12, 23, 2016, and the contents of which are incorporated herein by reference.

Technical Field

The present invention relates to an air conditioning unit for conditioning air inside a vehicle cabin.

Background

As such an air conditioning unit, for example, a vehicle air conditioning device described in patent document 1 is conventionally known. The air conditioning device for a vehicle described in patent document 1 is installed in a vehicle interior. The vehicle air conditioner of patent document 1 includes an air passage through which air-conditioned air flows and a dust cover that is separate from the air-conditioning case.

The dust cover is a cover for protecting electric components such as a motor from sand and dust in a vehicle interior. The dust cover is disposed on the vehicle front side with respect to the air conditioning casing and coupled to the air conditioning casing. The dust cover forms a dust-proof space with the outer wall surface of the air-conditioning casing. And, a part of the electric component enters the dustproof space.

Documents of the prior art

Patent document

Patent document 1: japanese patent laid-open publication No. 2009-143386

In the vehicle air conditioning device (i.e., air conditioning unit) of patent document 1, a dust cover is required to protect electrical components and the like in the dust-proof space. However, since the dustproof space is formed between the dustproof cover and the outer wall surface of the air conditioning case, the dustproof space is disposed on the vehicle front side with respect to the air conditioning case. Therefore, in the air conditioner for a vehicle of patent document 1, the dust cover and the dust-proof space are provided, so that an installation area required for installing the air conditioner for a vehicle is enlarged toward the front side of the vehicle. For example, in the vehicle air conditioner of patent document 1, since the air conditioner is mounted on a floor surface portion of a vehicle interior, an installation area on the floor surface portion is enlarged toward the vehicle front side. As a result of detailed studies by the inventors, the inventors have found the above-mentioned contents.

Disclosure of Invention

The present invention has been made in view of the above-described points, and an object thereof is to protect electrical components of an air conditioning unit and to suppress an enlargement of an installation area required for installing the air conditioning unit.

In order to achieve the above object, according to one aspect of the present invention, an air conditioning unit that is mounted on a predetermined vehicle mounting portion forming a part of a vehicle interior, is disposed inside the vehicle interior, and performs air conditioning inside the vehicle interior, the air conditioning unit comprising:

a ventilation path forming part which forms a ventilation path for flowing the air-conditioning air blown into the vehicle interior;

an intermediate space forming wall that forms an intermediate space that is arranged between the ventilation path and the vehicle mounting portion;

an electrical component; and

a plurality of unit mounting portions fixed to the vehicle mounting portion,

at least a part of the electric component is disposed in the intermediate space,

an intermediate space forming wall extending in a cylindrical shape from the air passage forming portion toward the vehicle mounting portion side, an intermediate space being formed inside the intermediate space forming wall and surrounding the intermediate space,

the plurality of unit mounting portions are arranged in a circumferential direction (DRr) of the intermediate space forming wall with a space therebetween, and are integrally fixed to the intermediate space forming wall.

In this way, the electric component in the intermediate space can be protected by the intermediate space forming wall. Further, since the intermediate space is disposed between the ventilation passage and the vehicle mounting portion, the installation space occupied by the air conditioner unit in a planar manner on the vehicle mounting portion can be increased by providing the intermediate space. That is, compared with the air conditioning apparatus for a vehicle of patent document 1, it is possible to suppress the enlargement of the installation area required for installing the air conditioning unit.

Drawings

Fig. 1 is a schematic diagram showing the arrangement of an air conditioning unit in a vehicle interior in the first embodiment.

Fig. 2 is a schematic diagram showing a schematic configuration of an air conditioning unit according to the first embodiment, and is a diagram showing the air conditioning unit in a partial sectional view.

Fig. 3 is a perspective view of a single body of the air conditioning unit as viewed from an obliquely upper side in the first embodiment.

Fig. 4 is a perspective view of a single body of the air conditioning unit as viewed from an obliquely lower side in the first embodiment.

Fig. 5 is a schematic diagram showing a schematic configuration of an air conditioning unit according to a comparative example to the first embodiment, and corresponds to fig. 2.

Fig. 6 is a schematic diagram showing the arrangement of the air conditioning unit in the vehicle interior according to the first specific example of reference example 1.

Fig. 7 is a schematic diagram showing the configuration of an air conditioning unit according to a first specific example of reference example 1.

Fig. 8 is a perspective view of the air conditioning unit according to the first specific example of reference example 1, and is a view of the air conditioning unit viewed from an oblique upper side.

Fig. 9 is an exploded perspective view of the air conditioning unit of the first example of reference example 1.

Fig. 10 is a perspective view of the air conditioning unit according to the first specific example of reference example 1, and is a view of the air conditioning unit as viewed from an oblique lower side.

Fig. 11 is an enlarged view of a portion XI in fig. 7.

Fig. 12 is an enlarged view of the hot water pipe and its peripheral portion in fig. 10, showing a state before the bracket and the seal are assembled.

Fig. 13 is a perspective view of a bracket alone according to the first specific example of reference example 1, as viewed from the upper side in the vertical direction shown in fig. 10.

Fig. 14 is a front view of the downstream side casing of the first specific example of reference example 1, and is a view of the downstream side casing as viewed from the vehicle front side.

Fig. 15 is a sectional view taken along line XV-XV in fig. 14.

Fig. 16 is a front view of the downstream casing of the first specific example of reference example 1, and is a view of the hot water pipe and the downstream casing as viewed from the rear side of the vehicle.

Fig. 17 is an enlarged view of the XVII portion in fig. 16.

Fig. 18 is a plan view of the air conditioning unit of comparative example 1-1.

Fig. 19 is a side view of the air conditioning unit of fig. 18.

Fig. 20 is a schematic diagram showing the arrangement of the air conditioning unit in the vehicle interior according to the first specific example of reference example 2.

Fig. 21 is a schematic diagram showing the configuration of an air conditioning unit according to a first specific example of reference example 2.

Fig. 22 is a perspective view of the air conditioning unit according to the first specific example of reference example 2, and is a view of the air conditioning unit as viewed from an oblique upper side.

Fig. 23 is an exploded perspective view of the air conditioning unit of the first example of reference example 2.

Fig. 24 is a perspective view of the air conditioning unit according to the first specific example of reference example 2, and is a view of the air conditioning unit as viewed from an oblique lower side.

Fig. 25 is an enlarged view of the XXV portion in fig. 21.

Fig. 26 is an enlarged view of the hot water pipe and its peripheral portion in fig. 24, and shows a state before the bracket and the seal are assembled.

Fig. 27 is a perspective view of a bracket unit according to the first specific example of reference example 2, as viewed from the upper side in the vertical direction shown in fig. 24.

Fig. 28 is a front view of the downstream side casing of the first specific example of reference example 2, and is a view of the downstream side casing as viewed from the vehicle front side.

Fig. 29 is a sectional view taken along line XXIX-XXIX in fig. 28.

Fig. 30 is a front view of the downstream casing of the first specific example of reference example 2, and is a view of the hot water pipe and the downstream casing as viewed from the rear side of the vehicle.

Fig. 31 is an enlarged view of the XXXI portion in fig. 30.

Fig. 32 is a plan view of the air conditioning unit of comparative example 2-1.

Fig. 33 is a side view of the air conditioning unit of fig. 32.

Detailed Description

Hereinafter, embodiments of the present invention will be described with reference to the drawings. In the following embodiments including other embodiments described later, the same or equivalent portions are denoted by the same reference numerals in the drawings.

(first embodiment)

The air conditioning unit 10 of the present embodiment is a vehicle-mounted device that performs air conditioning in the vehicle compartment 80. As shown in fig. 1 and 2, the air conditioning unit 10 is disposed in a vehicle compartment 80. The air conditioning unit 10 is mounted to a predetermined vehicle mounting portion 82 forming a part of the vehicle compartment 80. Specifically, the vehicle mounting portion 82 is a portion of an inner partition wall 85 included in the body of the vehicle 84. The inner and outer partition walls 85 are partition walls for partitioning the inside of the vehicle compartment 80 and the outside of the vehicle compartment 80.

Specifically, the inner and outer partition walls 85 constitute a floor surface of the vehicle interior 80. Further, a plurality of seats 861, 862 are provided in the vehicle compartment 80, and the air conditioning unit 10 is provided between the rear seat 862 and the inner/outer partition wall 85 among the plurality of seats 861, 862.

In addition, an arrow a1 indicates the vehicle interior space side with respect to the inner partition 85, that is, the vehicle interior 80 side, and an arrow a2 indicates the vehicle exterior space 87 side with respect to the inner partition 85 in fig. 1. Arrows DR1, DR2, and DR3 in fig. 1 and 2 indicate directions of the vehicle 84 on which the air conditioning unit 10 is mounted. That is, arrow DR1 in fig. 1 indicates vehicle vertical direction DR1, arrow DR2 indicates vehicle longitudinal direction DR2, and arrow DR3 in fig. 2 indicates vehicle lateral direction DR3, that is, vehicle width direction DR 3. In fig. 2, a lower portion of the air conditioning unit 10 is shown in a cross-sectional view.

As shown in fig. 2 to 4, the air conditioning unit 10 includes, as main components, an air conditioning case 12, a blower 14, and a heater core 16. The air conditioning unit 10 of the present embodiment has a heating function but does not have a cooling function. In short, the air conditioning unit 10 is a heating-dedicated air conditioning unit (in short, a heater).

The air conditioning case 12 is an outer case of the air conditioning unit 10. The air conditioning casing 12 accommodates a blower 14 and a heater core 16. The air conditioning casing 12 includes an air passage forming portion 20, an intermediate space forming wall 22, a blowout portion 24, a plurality of unit mounting portions 26, and an air inlet cover 121. For example, the air passage forming portion 20, the intermediate space forming wall 22, the blowout portion 24, the plurality of unit mounting portions 26, and the inlet cover 121 are all made of resin.

The blower 14 has a centrifugal blower fan 141 and a fan motor 142. The fan motor 142 is disposed below the blower fan 141, and rotates the blower fan 141 about a fan axis CLf extending in the vehicle vertical direction DR 1.

The blower fan 141 rotates about the fan axis CLf, and draws air from an air inlet 12a formed in the air conditioning casing 12 and opening toward the upper side. The blower fan 141 blows the sucked air into the air passage 20a formed in the air conditioning casing 12.

Cooling water flows through the heater core 16. The heater core 16 is a heating heat exchanger that heats air by heat exchange between the engine cooling water and the air.

The air passage forming portion 20 of the air conditioning casing 12 forms an air passage 20a through which the air conditioning air blown into the vehicle compartment 80 flows. The air duct 20a accommodates a blower fan 141 and a heater core 16.

In the air passage 20a, the air flows in the blowing direction DRx which is a direction along the vehicle mounting portion 82 which is a part of the inner and outer partition walls 85. In the present embodiment, the blowing direction DRx is a direction along the vehicle width direction DR 3. The upstream side of the air passage 20a with respect to the air flow is the vehicle right side, and the downstream side of the air passage 20a with respect to the air flow is the vehicle left side.

That is, the blower fan 141 is disposed at one end of the air passage 20a on the right side of the vehicle. The heater core 16 is disposed on the vehicle left side, which is the downstream side of the air flow of the blower fan 141, in the air passage 20 a.

The blowout part 24 of the air conditioning casing 12 is fixed to the airflow path forming part 20 so as to cover the downstream end 20b located on the airflow downstream side of the airflow path 20 a. The blowout part 24 has a plurality of through holes, which are provided as blowout ports 24a for blowing out the air from the ventilation passage 20 a.

Therefore, the air blown by the blower fan 141 passes through the heater core 16 in the air passage 20 a. The air is heated by the heater core 16 when passing through the heater core 16, and is blown out from the air outlet 24a after being heated.

The intermediate space forming wall 22 of the air conditioning casing 12 forms an intermediate space 22a, and the intermediate space 22a is disposed between the ventilation passage 20a and the vehicle mounting portion 82. That is, the air passage forming portion 20 is disposed apart from the vehicle mounting portion 82 by an amount that leaves the intermediate space 22a in the vehicle vertical direction DR1 with respect to the vehicle mounting portion 82. The intermediate space 22a is a space partitioned from the ventilation passage 20a by the ventilation passage forming portion 20.

The intermediate space forming wall 22 extends from the air passage forming portion 20 toward the vehicle mounting portion 82 side (i.e., the lower side), and surrounds the intermediate space 22 a. Specifically, the intermediate space forming wall 22 extends in a cylindrical shape from the air passage forming portion 20 toward the vehicle mounting portion 82 side. Therefore, the axial direction DRa of the cylindrical intermediate space forming wall 22 is a direction along the vehicle vertical direction DR 1. The intermediate space forming wall 22 forms an intermediate space 22a on the inner side thereof. In the intermediate space forming wall 22 of the present embodiment, no hole, notch, or the like is formed, and the intermediate space forming wall 22 covers the entire periphery of the intermediate space 22a and covers the intermediate space 22 a.

The vehicle mounting portion 82 blocks a side of the intermediate space forming wall 22 opposite to the ventilation passage 20a side of the intermediate space 22a in the axial direction DRa. That is, the lower side of the intermediate space 22a is closed by the vehicle mounting portion 82. Specifically, the vehicle mounting portion 82 has a pierced partition 821 that faces the intermediate space 22a and covers the side of the intermediate space 22a opposite to the side of the air passage 20 a.

The ventilation path forming portion 20 has a first forming portion 201 and a second forming portion 202, and is configured by engaging the first forming portion 201 and the second forming portion 202 with each other. The first forming portion 201 and the second forming portion 202 are engaged by screws or the like.

The first forming portion 201 and the second forming portion 202 have concave shapes, respectively, and are engaged in such a manner that the concave shapes face each other. Thus, the ventilation passage 20a is formed in the ventilation passage forming portion 20.

The second forming portion 202 of the ventilation path forming portion 20 is located between the intermediate space forming wall 22 and the first forming portion 201 in the axial direction DRa of the intermediate space forming wall 22. That is, the first forming portion 201 of the air passage forming portion 20 is disposed above the second forming portion 202.

The intake port 12a is formed in the first formation portion 201 of the ventilation path formation portion 20 in the air-conditioning case 12. The inlet cover 121 of the air conditioning casing 12 forms a gap between itself and the first forming portion 201, which is a passage for air drawn into the inlet port 12a, and is fixed to the first forming portion 201 so as to cover the inlet port 12 a. Although the inlet cover 121 is illustrated in fig. 3, the inlet cover 121 is not illustrated in fig. 2.

As described above, the intermediate space forming wall 22 extends from the air passage forming portion 20, but in detail, the intermediate space forming wall 22 extends from the second forming portion 202 of the air passage forming portion 20. The intermediate space forming wall 22 is formed integrally with the second forming portion 202. In short, the intermediate space forming wall 22 is formed integrally with the ventilation passage forming portion 20. For example, the intermediate space forming wall 22 and the second forming portion 202 of the ventilation path forming portion 20 are integrally formed by injection molding or the like.

The unit mounting portion 26 of the air conditioning casing 12 is a unit mounting leg fixed to the vehicle mounting portion 82. In the present embodiment, a total of three unit mounting portions 26 are provided.

Specifically, bolt holes 26a that penetrate in the vehicle vertical direction DR1 are formed in each of the plurality of unit mounting portions 26. The unit mounting portions 26 are fixed to the vehicle mounting portion 82 by bolts 261 inserted through the bolt holes 26a, respectively. Thereby, the air conditioning unit 10 is fixed to the vehicle mounting portion 82.

The plurality of unit mounting portions 26 are formed to protrude outward from the intermediate space forming wall 22, respectively. The plurality of unit mounting portions 26 are integrally fixed to the intermediate space forming wall 22. Specifically, the plurality of unit mounting portions 26 and the second forming portion 202 and the intermediate space forming wall 22 of the ventilation path forming portion 20 constitute a single formed article.

The plurality of unit attachment portions 26 are arranged in the circumferential direction DRr of the intermediate space forming wall 22 with a space therebetween.

The air conditioning unit 10 includes a register 32, hot water pipes 34 and 35, a discharge temperature sensor 36, a sensor wire 38, and a lead-out wire 40. The register 32 is an electrical component that increases or decreases the rotation speed of the fan motor 142. The outlet air temperature sensor 36 is a sensor that detects the temperature of the air blown out from the air passage 20a, and detects the temperature of the air, for example, on the downstream side of the air flow of the heater core 16 in the air passage 20 a. The sensor wire 38 is a signal wire for transmitting a detection signal of the outlet air temperature sensor 36.

The hot water pipes 34 and 35 are pipes for circulating engine cooling water as hot water through the heater core 16. Therefore, the hot water pipes 34 and 35 are connected to the heater core 16, and the engine cooling water flows through the hot water pipes 34 and 35.

The lead-out electric wire 40 is, for example, a wire bundle (i.e., a wire harness) composed of a plurality of electric wires. The lead-out wire 40 includes, for example, a power wire, a signal wire, and the like. The lead-out wire 40 electrically connects the electrical components of the air conditioning unit 10 and electrical equipment provided outside the air conditioning unit 10.

The hot water pipes 34 and 35 and the lead-out wire 40 are led out to the outside of the vehicle interior 80 (i.e., the vehicle exterior space 87) from the intermediate space 22a through the partition 821. That is, the hot water pipes 34 and 35 and the lead-out wire 40 are penetration members penetrating the partition 821.

In other words, the hot water pipes 34 and 35 and the lead-out wire 40 are led out directly from the vehicle interior 80 through the vehicle attachment portion 82 from the intermediate space 22a without passing through the case peripheral space 801 in the vehicle interior 80 except for the area occupied by the air conditioning case 12. For example, the hot water pipes 34 and 35 are inserted into a pipe hole 821a formed through the partition wall 821 in the vehicle mounting portion 82, and are led out from the intermediate space 22a to the vehicle exterior space 87 through the pipe hole 821 a.

A lower portion of the fan motor 142, a lower portion of the outlet temperature sensor 36, the register 32, and the sensor wire 38 are disposed in the intermediate space 22 a. That is, the fan motor 142, the outlet temperature sensor 36, the register 32, and the sensor wire 38 are electrical components included in the air conditioning unit 10, and a part of the electrical components is disposed in the intermediate space 22 a.

As described above, according to the present embodiment, as shown in fig. 1, 2, and 4, the intermediate space forming wall 22 extends from the air passage forming portion 20 toward the vehicle mounting portion 82 side, and surrounds the intermediate space 22a in which the electrical components 32, 36, 38, and 142 such as the register 32 are arranged. Therefore, the electric components 32, 36, 38, 142 in the intermediate space 22a can be protected by the intermediate space forming wall 22. That is, the intermediate space forming wall 22 functions as a protective wall for protecting the electric components 32, 36, 38, and 142, and the intermediate space 22a is a protective space in which the electric components 32, 36, 38, and 142 are arranged.

The intermediate space 22a is disposed between the ventilation passage 20a and the vehicle mounting portion 82 in the vehicle vertical direction DR 1. Therefore, it is possible to avoid enlarging the installation space that the air conditioning unit 10 occupies planarly on the vehicle installation portion 82 due to the provision of the intermediate space 22 a. That is, compared with the vehicle air conditioner of patent document 1, it is possible to suppress the enlargement of the installation area necessary for installing the air conditioning unit 10. By thus achieving space saving of the air conditioning unit 10, it is possible to improve mountability of the air conditioning unit 10 on the vehicle 84 and to enlarge a boarding space available to passengers in the vehicle compartment 80.

For example, in the vehicle air conditioner of patent document 1, in forming the dustproof space corresponding to the above-described protection space, it is necessary to add a shield which is a member separate from the air conditioning casing. In contrast, in the present embodiment, the intermediate space 22a as the shielded space is formed by the intermediate space forming wall 22 constituting a part of the air-conditioning casing 12 and the penetrating partition wall 821 which is a part of the inner and outer partition walls 85. Therefore, in the present embodiment, since the parts corresponding to the shield of patent document 1 are not required, the number of parts can be reduced, and further, the parts cost, the assembly cost of the parts, and the like can be reduced.

Further, compared to the vehicle air conditioner of patent document 1, in the present embodiment, it is easy to improve the dust-proof property, the water-proof property, and the sound-proof property, and it is easy to prevent the occupant from coming into contact with the hot water pipes 34, 35 and the like.

The intermediate space 22a is disposed between the air passage 20a and the vehicle mounting portion 82, in other words, a gap formed between the air passage forming portion 20 forming the air passage 20a and the inner and outer partition walls 85 is the intermediate space 22 a. Therefore, dust-proof and waterproof properties from the housing peripheral space 801 to the intermediate space 22a and sound-proof properties from the intermediate space 22a to the housing peripheral space 801 are easily ensured by the intermediate space forming wall 22.

Further, the following advantages are obtained from the arrangement of the intermediate space forming wall 22 surrounding the intermediate space 22 a: it is easy to avoid the breakage of the intermediate space forming wall 22 due to the kicking of the occupant carelessness or the like.

Further, according to the present embodiment, the vehicle mounting portion 82 is a part of the inner and outer partition walls 85 that partition the inside of the vehicle compartment 80 and the outside of the vehicle compartment 80. The ventilation path forming portion 20 and the intermediate space forming wall 22 form a part of the air conditioning casing 12. The hot water pipes 34 and 35 and the lead-out wire 40 are led out from the vehicle compartment 80 through the vehicle attachment portion 82 from the intermediate space 22a without passing through the housing peripheral space 801 except for the range occupied by the air-conditioning housing 12 in the vehicle compartment 80. That is, the penetrating member is led out from the intermediate space 22a to the penetrated partition 821 of the intermediate space 22a to the outside of the vehicle compartment 80.

Therefore, in the intermediate space forming wall 22 that partitions the housing peripheral space 801 and the intermediate space 22a, a seal structure is not required for leading out the penetrating member to the outside of the vehicle compartment. Therefore, compared to the vehicle air conditioner of patent document 1, the present embodiment makes it easier to simplify the sealing structure as the whole air conditioning unit 10, and makes it easier to improve the dust-proof property, water-proof property, and sound-proof property of the air conditioning unit 10.

Specifically, in the vehicle air conditioner of patent document 1, during the cleaning and washing of the floor surface in the vehicle compartment 80, dust and water may enter the dustproof space through the through hole of the dust cover or the like, and sound leakage from the dustproof space may occur. In contrast, in the present embodiment, it is not necessary to form a hole or the like for passing through a member in the intermediate space forming wall 22, and the dust-proof property, the water-proof property, and the sound-proof property of the air conditioning unit 10 are easily improved.

Further, the penetrating member does not require an extra space in the housing peripheral space 801, and space saving and simplification of the member can be achieved.

Further, according to the present embodiment, the intermediate space forming wall 22 extends in a cylindrical shape from the air passage forming portion 20 toward the vehicle mounting portion 82, and the intermediate space 22a is formed inside the intermediate space forming wall 22. The plurality of unit attachment portions 26 fixed to the vehicle attachment portion 82 are arranged in the circumferential direction DRr of the intermediate space forming wall 22 with a space therebetween, and are integrally fixed to the intermediate space forming wall 22. Therefore, the unit mounting portion 26 can be formed into a simple and strong mounting structure. As a result, the vibration resistance of the air conditioning unit 10 is easily improved, and cost reduction is easily achieved.

Here, as a comparative example to the present embodiment, an air conditioning unit 90 shown in fig. 5 is assumed. In the air conditioning unit 90 of fig. 5, the air passage forming unit 20 has the same configuration as the air conditioning unit 10 of the present embodiment, but the air conditioning unit 90 of fig. 5 does not include the intermediate space forming wall 22. Therefore, the air conditioning unit 90 of fig. 5 has a plurality of mounting legs 92 corresponding to the unit mounting portion 26 of the present embodiment. In order to ensure the strength, the plurality of mounting legs 92 are made of a metal such as iron and fixed to the lower surface of the ventilation passage forming portion 20.

When the comparative example of fig. 5 and the present embodiment are compared, the intermediate space forming wall 22 functions as a reinforcing member that reinforces the plurality of unit mounting portions 26 in the present embodiment, and a simpler and higher-strength mounting structure can be realized as compared with the comparative example of fig. 5. As a result, the vibration resistance of the air conditioning unit 10 of the present embodiment can be further improved and the cost can be reduced.

In the present embodiment, the intermediate space forming wall 22 functions as a reinforcing member for the unit mounting portion 26, and therefore, the strength of the unit mounting portion 26 can be sufficiently ensured and the unit mounting portion 26 can be made of resin.

Further, according to the present embodiment, the ventilation path forming portion 20 is constituted by the first forming portion 201 and the second forming portion 202, and the second forming portion 202 is located between the intermediate space forming wall 22 and the first forming portion 201 in the axial direction DRa of the intermediate space forming wall 22. Also, the intermediate space forming wall 22 is formed integrally with the second forming portion 202. Therefore, the intermediate space forming wall 22 having high strength can be obtained by the second forming portion 202 of the ventilation path forming portion 20.

Further, according to the present embodiment, the intermediate space forming wall 22 is integrally configured with the air passage forming portion 20. Therefore, a high-strength structure can be realized by the entirety of the intermediate space forming wall 22 and the ventilation path forming portion 20.

(other embodiments)

(1) In the above-described embodiment, as shown in fig. 2, the air conditioning unit 10 is a heater having a heating function but not a cooling function. However, this is an example, and the air conditioning unit 10 may be a cooler having only a cooling function of a heating function and a cooling function, or may be a cooling/heating air conditioning unit having both a heating function and a cooling function. For example, when the air conditioning unit 10 has a cooling function, the evaporator of the refrigeration cycle is disposed in the ventilation passage 20 a.

(2) Although the air conditioning unit 10 is provided below the rear seat 862 as shown in fig. 1 in the above-described embodiment, the air conditioning unit 10 may be disposed at any position in the vehicle interior 80. For example, the air conditioning unit 10 may be a front air conditioning unit disposed in a front portion in the vehicle compartment 80.

(3) In the above embodiment, as shown in fig. 3, the ventilation path forming portion 20 and the intermediate space forming wall 22 constitute a part of the air-conditioning casing 12, but may constitute the entire air-conditioning casing 12.

(4) In the above-described embodiment, as shown in fig. 3 and 4, no hole, notch, or the like is formed in the intermediate space forming wall 22, and a hole, notch, or the like may be formed in a part of the intermediate space forming wall 22.

The intermediate space forming wall 22 does not necessarily surround the entire periphery of the intermediate space 22a and may be a part of the intermediate space 22a, the part not covered by the intermediate space forming wall 22. The range in which the intermediate space forming wall 22 surrounds the intermediate space 22a may be determined as appropriate depending on, for example, the use of the intermediate space forming wall 22.

(5) In the above-described embodiment, as shown in fig. 4, a part of the electric components 32, 36, 38, and 142 included in the air conditioning unit 10 is disposed in the intermediate space 22a, and all of the electric components 32, 36, 38, and 142 are disposed in the intermediate space 22 a.

(6) In the above-described embodiment, as shown in fig. 2, the intermediate space forming wall 22 is formed integrally with the second forming portion 202 of the air passage forming portion 20, but the intermediate space forming wall 22 may be formed as a separate member from the second forming portion 202. Even in that case, as long as the intermediate space forming wall 22 is fixed to the second forming portion 202 with a strength equal to or greater than that of the integral forming, it can be said that the intermediate space forming wall 22 is integrally formed with the air passage forming portion 20. For example, the intermediate space forming wall 22 can be fixed to the second forming portion 202 by welding, screwing, or the like.

(7) In the above-described embodiment, as shown in fig. 2, the hot water pipes 34 and 35 and the lead-out wire 40 are led out from the intermediate space 22a to the outside space 87 through the partition 821. For example, a luggage room may be provided on the opposite side of the intermediate space 22a from the penetrated partition 821. In this case, the hot water pipes 34 and 35 and the lead-out wire 40 are led out from the intermediate space 22a to the luggage room through the partition 821.

(8) In the above-described embodiment, as shown in fig. 2, the dust-proof property of the intermediate space 22a is easily ensured by the intermediate space forming wall 22, but the use of the intermediate space forming wall 22 is not limited to dust-proof. For example, when the air conditioning unit 10 has a cooling function, the intermediate space forming wall 22 may be provided for the purpose of preventing condensation of the cooler pipe, heat insulation between the intermediate space 22a and the housing peripheral space 801, or the like.

(9) In the above-described embodiment, as shown in fig. 1, the air conditioning unit 10 is provided in the vehicle interior 80 so as to blow out the conditioned air in the vehicle width direction DR3, but the direction of the air conditioning unit 10 is not limited.

The present invention is not limited to the above-described embodiments, and various modifications and modifications within equivalent ranges are also included. In the above embodiments, it is needless to say that elements constituting the embodiments are not necessarily essential unless they are clearly shown in particular or clearly necessary in principle.

In the above embodiments, when the numerical values such as the number, numerical value, amount, and range of the constituent elements of the embodiments are mentioned, the number is not limited to a specific number unless otherwise specifically indicated as necessary or clearly limited to a specific number in principle. In the above embodiments, when referring to the material, shape, positional relationship, and the like of the components and the like, the material, shape, positional relationship, and the like are not limited to those unless otherwise stated or limited to a specific material, shape, positional relationship, and the like in principle.

(conclusion)

In accordance with a first aspect of some or all of the embodiments described above, the air passage forming portion forms an air passage through which the air-conditioning air blown into the vehicle interior flows. The intermediate space forming wall forms an intermediate space disposed between the ventilation path and the vehicle mounting portion. At least a part of the electric component is disposed in the intermediate space. The intermediate space forming wall extends from the ventilation path forming portion toward the vehicle mounting portion side, and surrounds the intermediate space.

In addition, according to the second aspect, the vehicle mounting portion is a part of an inner partition wall and an outer partition wall that partition the vehicle interior and the vehicle exterior. The ventilation path forming portion and the intermediate space forming wall constitute at least a part of the air conditioning casing. The penetrating member penetrates the vehicle mounting portion from the intermediate space to be led out to the outside of the vehicle compartment without passing through a space around the casing other than a range occupied by the air conditioning casing inside the vehicle compartment. Therefore, the through-member is led out to the outside of the vehicle interior on the intermediate space forming wall that partitions the space around the housing and the intermediate space, and therefore, a sealing structure is not required. Therefore, the dust-proof property, the water-proof property, and the sound-insulating property of the air conditioning unit 10 are easily improved. Further, the penetrating member does not require an extra space in the space around the housing, and space saving and simplification of the member can be achieved.

In addition, according to a third aspect, the vehicle mounting portion is a part of an inner partition wall and an outer partition wall that partitions the vehicle interior and the vehicle exterior, and has a penetrated partition wall. The penetrated partition wall faces the intermediate space and covers the side of the intermediate space opposite to the ventilation path side. The penetrating member penetrates the intermediate space and is led out to the outside of the vehicle interior through the penetrating partition wall. Therefore, similarly to the second aspect, the air is led out from the intermediate space to the outside of the vehicle interior without passing through the space around the casing. Therefore, the same operational effects as those obtained based on the second viewpoint described above can be obtained.

In the fourth aspect, the intermediate space forming wall extends in a cylindrical shape from the air passage forming portion toward the vehicle mounting portion side, and the intermediate space is formed inside the intermediate space forming wall. The plurality of unit mounting portions fixed to the vehicle mounting portion are arranged in the circumferential direction of the intermediate space forming wall with a space therebetween, and are integrally fixed to the intermediate space forming wall. Therefore, the unit mounting portion can be formed into a simple and strong mounting structure. As a result, the vibration resistance of the air conditioning unit is easily improved, and cost reduction is easily achieved.

In addition, according to a fifth aspect, the ventilation passage forming portion is configured by the first forming portion and the second forming portion, and the second forming portion is located between the intermediate space forming wall and the first forming portion in the axial direction of the intermediate space forming wall. And, the intermediate space forming wall is formed integrally with the second forming portion. Therefore, the intermediate space forming wall having high strength can be obtained by the second forming portion of the ventilation path forming portion.

In addition, according to a sixth aspect, the intermediate space forming wall is integrally formed with the air passage forming portion. Therefore, a high-strength structure can be easily realized by the entire intermediate space forming wall and the ventilation path forming portion.

[ reference example 1]

The present reference example relates to an air conditioning unit for a vehicle.

Patent document 2 discloses an air conditioning unit. The air conditioning unit includes an air conditioning case, a heat exchanger, a pipe, and a pair of clamps. The heat exchanger is disposed inside the air conditioning case. One end of the pipe is connected to the heat exchanger. Most of the piping is located outside the air conditioning case. The pair of clamp portions is fixed to the air conditioning casing outside the air conditioning casing in a state of sandwiching the pipe. The portion of the pipe between the heat exchanger and the pair of clamps is exposed outside the air conditioning case. The pair of clamp portions is configured to be separated from the air conditioning casing.

Patent document 2: japanese laid-open patent publication No. (Japanese patent application laid-open No. 2002-

When an air conditioning unit including a heating heat exchanger is disposed in a vehicle interior, a passenger may touch the piping when a part of the piping is exposed to the outside of the air conditioning case, as in the conventional air conditioning unit described above. Therefore, in the conventional air conditioning unit, it is necessary to add a dedicated cover member for the purpose of covering only the pipes so that the passenger does not touch the pipes.

However, when a dedicated covering member is added, there arise problems such as an increase in the price of the air conditioning unit and an increase in the number of assembly steps for manufacturing the air conditioning unit.

The present reference example has been made in view of the above-described circumstances, and an object thereof is to provide an air conditioning unit capable of preventing a passenger from touching a pipe without adding a dedicated cover member.

In order to achieve the above object, an air conditioning unit according to feature 1 of the present reference example is an air conditioning unit for a vehicle, for blowing warm air into a vehicle interior, the air conditioning unit including:

an air conditioning case having an air passage formed therein;

a heating heat exchanger disposed inside the air conditioning casing and configured to heat air by heat exchange with a heat medium;

a pipe having one end and the other end on the opposite side, the one end side including the one end being connected to the heating heat exchanger inside the air conditioning casing, the other end side including the other end being taken out to the outside of the air conditioning casing, the pipe allowing a heat medium to flow; and

a fixing portion for fixing the other end side of the pipe to the air conditioning case,

the air conditioning casing is arranged on a partition wall of the vehicle body,

the partition wall has a partition wall through-hole which partitions a vehicle interior space on the side where the air conditioning casing is provided and an opposite side space which sandwiches the partition wall with respect to the vehicle interior space, and which penetrates the partition wall,

the wall on the partition wall side in the air-conditioning case has a case penetration hole penetrating the wall,

the other end of the pipe is taken out to the opposite side space through the housing through hole and the partition wall through hole,

the air conditioning unit is provided with a sealing part for sealing a gap between a peripheral part surrounding the through hole of the partition wall and the pipe,

in a state where the air conditioning casing is provided on the partition wall, the casing through hole is disposed in at least a part of a region facing the partition wall through hole and the seal portion in a direction orthogonal to the partition wall in the wall on the partition wall side of the air conditioning casing, and a part of the piping from the position of the casing through hole to the position of the partition wall through hole is covered with the fixing portion and the seal portion.

Thus, the pipe is covered with the fixing portion and the sealing portion from the position of the housing through hole to the position of the partition wall through hole. Therefore, the occupant can be prevented from touching the pipe without adding a dedicated cover member.

Specific examples of the reference example will be described below with reference to the drawings. In the following specific examples, the same or equivalent portions are denoted by the same reference numerals.

(first embodiment of reference example 1)

As shown in fig. 6, a vehicle air conditioning unit 2010 of the present example is disposed in a vehicle interior 2002 of a vehicle 2001. The air conditioning unit 2010 constitutes a part of an air conditioning apparatus for a vehicle. The air conditioning unit 2010 blows warm air into the vehicle compartment.

The air conditioning unit 2010 is provided at a partition wall 2003 provided in the vehicle body. The vehicle body is the main body of the vehicle 2001. The partition wall 2003 is a mounting wall on which the air conditioning unit 2010 is mounted. The partition 2003 constitutes a floor surface of the vehicle compartment 2002. The partition wall 2003 partitions the vehicle interior space 2004 and the vehicle exterior space 2005. The vehicle exterior space 2005 is an opposite side space which is opposite to the vehicle interior space 2004 across the partition 2003. A plurality of seats 2006 are provided in the vehicle compartment 2002. The plurality of seats 2006 include a driver seat 2006a and a rear seat 2006b on the vehicle rear side of the driver seat 2006 a. The air conditioning unit 2010 is disposed below the rear seat 2006 b.

As shown in fig. 7, the air conditioning unit 2010 includes an air conditioning case 2012, a blower 2014, and a heater core 2016. Air conditioning unit 2010 is a heating dedicated air conditioning unit.

The air conditioning case 2012 is an outer shell of the air conditioning unit 2010. The air conditioning case 2012 is made of resin. The air conditioning case 2012 has an air passage 2012a formed therein. The air passages 2012a extend along the partition wall 2003. Therefore, the flow direction of the air flowing in the air passage 2012a is the direction along the partition wall 2003. Although not shown, a duct is connected to the downstream side of the air-conditioning case 2012 with respect to the air flow.

The blower 2014 is disposed inside the air conditioning casing 2012. The blower 2014 forms an air flow toward the cabin. The blower 2014 has a centrifugal fan 2141 and a fan motor 2142. The fan motor 2142 is an electrical component that rotates the fan 2141.

The heater core 2016 is disposed inside the air conditioning case 2012. The heater core 2016 is disposed on the air flow downstream side of the blower 2014. The heater core 2016 is a heating heat exchanger that heats air by heat exchange with a heat medium. The heat medium is engine cooling water as warm water.

In this specific example, the entire heater core 2016 is disposed inside the air conditioning casing 2012. The air inlet surface 2016a and the air outlet surface 2016b of the heater core 2016 are oriented in a direction perpendicular to or close to the partition wall 2003.

The air conditioning unit 2010 includes two hot water pipes 2018. The hot water pipe 2018 allows engine cooling water to flow. The hot water pipe 2018 is substantially cylindrical. The hot water pipe 2018 has one end 2018a and the other end 2018b opposite to the one end 2018 a. The heater core 2016 is connected to one end 2018a side of the hot water pipe 2018 including the one end 2018a of the hot water pipe 2018. The other end 2018b of the warm water pipe 2018 including the other end 2018b is taken out to the outside of the air-conditioning case 2012. The other end 2018b of the warm water pipe 2018 is taken out into the vehicle exterior space 2005.

In this air conditioning unit 2010, air from the blower 2014 passes through the heater core 2016. The air is heated while passing through the heater core 2016, thereby forming warm air. The warm air is blown out into the vehicle interior 2002 through a duct not shown.

As shown in fig. 7, 8, and 9, the air conditioning casing 2012 has an upstream side casing 2121 and a downstream side casing 2122. The upstream side case 2121 constitutes a portion on the air flow upstream side in the air conditioning case 2012. The downstream side case 2122 constitutes a portion of the air flow downstream side of the upstream side case 2121 in the air conditioning case 2012. The upstream-side housing 2121 also has an upstream-side upper housing 2123 and an upstream-side lower housing 2124. The upstream side upper case 2123 constitutes an upper side portion of the upstream side case 2121. The upstream-side lower case 2124 constitutes a lower portion in the upstream-side case 2121. The upstream side housing 2121 is configured by connecting an upstream side upper housing 2123 and an upstream side lower housing 2124. The air conditioning case 2012 is configured by connecting the upstream side case 2121 and the downstream side case 2122. A duct, not shown, is connected to the downstream side of the downstream housing 2122 in the air flow direction.

As shown in fig. 11, the bottom wall 2125 of the air conditioning casing 2012 has a casing penetration hole 2126 penetrating the bottom wall 2125. The housing through hole 2126 is formed by a peripheral edge 2127 surrounding the housing through hole 2126.

The bottom wall 2125 is a wall on the partition wall 2003 side in the air-conditioning casing 2012. The case through-hole 2126 is formed in the joint portion 2124a of the upstream-side lower case 2124 and the joint portion 2122a of the downstream-side case 2122. In other words, the downstream side housing 2122 and the upstream side lower housing 2124 are located on both sides of the housing through hole 2126. The downstream side housing 2122 has a part 2127a of a peripheral edge 2127 of the housing through hole 2126. The upstream-side lower shell 2124 has another part 2127b of the peripheral edge 2127 of the shell through hole 2126.

The hot water pipe 2018 is taken out from the other end 2018b side to the outside of the air conditioning case 2012 through the case through hole 2126. The hot water pipe 2018 has a straight portion 2018c extending outward from the case through hole 2126 to the other end 2018b of the air conditioning case 2012. The extending direction of the portion 2018c is a direction orthogonal to the partition 2003. The extending direction of the portion 2018c may be a direction intersecting the partition 2003.

The partition 2003 has a partition through hole 2003a penetrating the partition 2003. The partition wall through-hole 2003a is provided corresponding to the two hot water pipes 2018. In a state where the air-conditioning case 2012 is provided at the partition 2003, the hot water pipe 2018 is taken out to the vehicle exterior space 2005 through the partition through-hole 2003a at the other end 2018b side. The hot water pipe 2018 is connected to a hot water hose, not shown, at the other end 2018b side.

As shown in fig. 7 and 8, the hot water pipe 2018 is arranged in a curved manner to form a predetermined pipe path in the air passage 2012 a. That is, the hot water pipe 2018 is bent in a range from the one end 2018a to the housing through hole 2126. In other words, the portion of the hot water pipe 2018 extending from the one end 2018a to the housing through hole 2126 has a curved portion 2018 d. In this specific example, a part of the internal space of the air conditioning casing 2012 is used as the arrangement area of the hot water pipes 2018.

As shown in fig. 9, 11, and 12, the air conditioning case 2012 has two first clamping portions 2021 and two second clamping portions 2022, respectively. The first clamp portion 2021 and the second clamp portion 2022 are located outside the air conditioning case 2012. One first clamp portion 2021 and one second clamp portion 2022 are provided for each of the two hot water pipes 2018. The first clamp portion 2021 and the second clamp portion 2022 are fixing portions that are fixed to the air conditioning case 2012 with the warm water pipe 2018 therebetween. The inner wall surface of the first clamp portion 2021 and the inner wall surface of the second clamp portion 2022 have shapes corresponding to the outer shape of the hot water pipe 2018.

As shown in fig. 11, the first clamp portion 2021 is connected to a portion 2127a of the peripheral portion 2127 of the downstream side case 2122. The first clamp portion 2021 extends from a portion 2127a of the peripheral portion 2127 to the outside of the air conditioning case 2012. The first clamp portion 2021 and the downstream side case 2122 are formed of an integral resin molded product. In this specific example, the downstream side casing 2122 corresponds to the first casing.

The second clamp portion 2022 is connected to another part 2127b of the peripheral portion 2127 of the upstream-side lower shell 2124. The second clamp portion 2022 extends from the other portion 2127b of the peripheral portion 2127 to the outside of the air conditioning casing 2012. The second clamp portion 2022 and the upstream side lower housing 2124 are formed of an integral resin molded product. In this specific example, the upstream lower housing 2124 corresponds to the second housing.

As shown in fig. 9, 10, and 11, the air conditioning unit 2010 includes a packing 2024 and a bracket 2026. The seal 2024 is a seal portion that closes a gap between the hot water pipe 2018 and a peripheral portion surrounding the partition wall through-hole 2003 a. The packing 2024 has a packing through-hole 2241 for allowing the hot water pipe 2018 to pass therethrough. The seal 2024 is sheet-like. The seal 2024 is made of foamed urethane resin.

The bracket 2026 is a member having a setting surface 2261, and the setting surface 2261 is provided with a seal 2024. The bracket 2026 includes a main body 2265, which is a plate-like member, and a side wall 2266 connected to the periphery of the main body 2265. The main body 2265 includes an installation surface 2261 and an opposite surface 2264 opposite to the installation surface 2261. In this specific example, the main body 2265 corresponds to the seal installation portion. The body 2265 has a bracket through hole 2262 for allowing the hot water pipe 2018 to pass through.

As shown in fig. 11, the bracket 2026 is fixed to the bottom wall 2125 of the air conditioning casing 2012 by means of small screws 2263. The bracket 2026 may also be secured by other methods. The body 2265 sandwiches a seal 2024 with a partition 2003 of the vehicle body. This closes the gap between the hot water pipe 2018 and the peripheral edge portion surrounding the partition wall through-hole 2003 a.

The bracket 2026 has two first pressing ribs 2031 and two second pressing ribs 2032. One first pressing rib 2031 and one second pressing rib 2032 are provided for each of the two hot water pipes 2018. The first pressing rib 2031 and the second pressing rib 2032 are fixing portions for fixing the hot water pipe 2018 to the air conditioning case 2012 by clamping and pressing both the first clamp portion 2021 and the second clamp portion 2022, respectively. The first pressing rib 2031 corresponds to a first pressing portion. The second pressing rib 2032 corresponds to a second pressing part.

As shown in fig. 13, the first pressing rib 2031 and the second pressing rib 2032 are formed on opposite surfaces 2264 in the main body 2265. The first pressing rib 2031 and the second pressing rib 2032 protrude from the opposite faces 2264. The first pressing rib 2031 and the second pressing rib 2032 extend linearly. The first pressing ribs 2031 and the second pressing ribs 2032 are linearly arranged in parallel with a space therebetween. In this specific example, the first pressing rib 2031 and the second pressing rib 2032 are arranged along a straight line.

The first pressing rib 2031 and the second pressing rib 2032 are integral with the bracket 2026. That is, the first pressing rib 2031, the second pressing rib 2032, and the body 2265 are formed of an integral resin molded product.

Fig. 15 is a cross-sectional view of the bracket 2026 in fig. 14. As shown in fig. 15, in a state where the bracket 2026 is fixed to the air conditioning case 2012, the hot water pipe 2018 is sandwiched between the first clamp portion 2021 and the second clamp portion 2022. In the arrangement direction of the first clamp portion 2021 and the second clamp portion 2022, the first pressing rib 2031 and the second pressing rib 2032 clamp and press the first clamp portion 2021 and the second clamp portion 2022 with the warm water pipe 2018 interposed therebetween. Thereby, the first clamp portion 2021 and the second clamp portion 2022 are fixed in a state of sandwiching the hot water pipe 2018.

When the bracket 2026 is assembled, the bracket 2026 is inserted into the first clamp portion 2021 and the second clamp portion 2022 which sandwich the hot water pipe 2018. Thus, the first clamp portion 2021 and the second clamp portion 2022 sandwiching the hot water pipe 2018 are press-fitted between the first pressing rib 2031 and the second pressing rib 2032. Therefore, the first clamp portion 2021 and the second clamp portion 2022, which sandwich the hot water pipe 2018, are held by the first pressing rib 2031 and the second pressing rib 2032 in a state of being pressed into between the first pressing rib 2031 and the second pressing rib 2032. In this way, the first clamp portion 2021 and the second clamp portion 2022, which are in a state of sandwiching the hot water pipe 2018, are fitted between the first pressing rib 2031 and the second pressing rib 2032 so that the first clamp portion 2021 and the second clamp portion 2022 are not separated from each other.

Fig. 16 shows a state in which the first clamp portion 2021 of the downstream side case 2122 holds the hot water pipe 2018. Fig. 17 is an enlarged view of the first clamp portion 2021 and the hot water pipe 2018 in fig. 16.

As shown in fig. 17, a pair of recesses 2034 is provided on an outer surface 2181 of the hot water pipe 2018. The pair of concave portions 2034 are portions that are recessed toward the center of the hot water pipe 2018. One of the pair of concave portions 2034 is a first concave portion 2034 a. The other of the pair of concave portions 2034 is a second concave portion 2034 b. The hot water pipe 2018 has a narrower width than the portion of the hot water pipe 2018 other than the pair of recesses 2034, where the pair of recesses 2034 are provided.

The pair of concave portions 2034 are disposed on both sides of the center of the hot water pipe 2018. Bottom 2341 of each of the pair of recesses 2034 is a flat surface. The recessed direction of each of the pair of concave portions 2034 is the left-right direction in fig. 17. The left-right direction in fig. 17 is a direction parallel to the abutting surface 2212 of the first clamp portion 2021. As shown in fig. 15, the abutting surface 2212 is a surface that contacts the second clamp portion 2022. The left-right direction in fig. 17, in other words, is a direction perpendicular to the arrangement direction of the first clamp portion 2021 and the second clamp portion 2022.

A pair of protrusions 2036 is provided on the inner surface 2211 of the first clamp portion 2021. The pair of projections 2036 are portions projecting from the inner surface 2211 to the hot water pipe 2018. One of the pair of convex portions 2036 is a first convex portion 2036 a. The other of the pair of convex portions 2036 is a second convex portion 2036 b.

The pair of projections 2036 are provided on the inner surface 2211 at positions facing the pair of recesses 2034, respectively, with the hot water pipe 2018 sandwiched between the first clamp 2021 and the second clamp 2022. That is, the first convex portion 2036a is provided at a position facing the first concave portion 2034 a. The second convex portion 2036b is provided at a position facing the second concave portion 2034 b.

The pair of projections 2036 are disposed at positions facing each other on the inner surface 2211. In other words, the pair of convex portions 2036 are provided on both sides of the first clamp portion 2021 that sandwich the hot water pipe 2018, respectively, in a state where the first clamp portion 2021 is in contact with the hot water pipe 2018. The top 2361 of each of the pair of projections 2036 is a flat surface.

In a state where the first clamp portion 2021 and the second clamp portion 2022 clamp the hot water pipe 2018, the concave portions 2034 of the pair of concave portions 2034 are fitted to the convex portions 2036 of the pair of convex portions 2036. More specifically, the first protrusion 2036a and the second protrusion 2036b sandwich the portion of the hot water pipe 2018 where the first recess 2034a and the second recess 2034b are provided. Thereby, the first convex portion 2036a and the first concave portion 2034a are fitted. The second convex portion 2036b and the second concave portion 2034b are fitted.

In this specific example, the first recess 2034a constitutes a pipe-side fitting portion or a pipe-side first fitting portion provided in the pipe. The second recess 2034b constitutes a pipe-side second fitting portion provided in the pipe. The first protrusion 2036a constitutes a clamp-side fitting portion that fits into the pipe-side fitting portion or a clamp-side first fitting portion. The second protrusion 2036b constitutes a clamp-side second fitting portion that fits into the pipe-side second fitting portion.

Next, the effects of the air-conditioning unit 2010 of this specific example will be described in comparison with the air-conditioning unit 2050 of comparative example 1-1 shown in fig. 18 and 19.

In the air-conditioning unit 2050 of comparative example 1-1, the portion of the heater core 2016 connected to the hot water pipe 2018 is located outside the air-conditioning case 2012. The hot water pipe 2018 is fixed to the air-conditioning case 2012 by a fixing portion 2052, and the fixing portion 2052 is formed as a member separate from the air-conditioning case 2012. The portion of the hot water pipe 2018 from the heater core 2016 to the fixing portion 2052 is bent outside the air conditioning casing 2012. The portion of the hot water pipe 2018 from the heater core 2016 to the fixing portion 2052 is covered with a dedicated cover member 2054 for the purpose of covering only the hot water pipe 2018. The fixing portion 2052 sandwiches the hot water pipe 2018. The fixing portion 2052 is fastened by the fixing screw 2056, whereby the hot water pipe 2018 is firmly held.

Thus, the air conditioning unit of comparative example 1-1 is added with a dedicated covering member 2054. This causes problems such as an increase in the price of the air conditioning unit and an increase in the number of assembly steps for manufacturing the air conditioning unit.

In contrast, in the air conditioning unit 2010 of this specific example, as shown in fig. 11, in a state where the air conditioning case 2012 is provided on the partition wall 2003, the case through-hole 2126 is disposed in a region of the air conditioning case 2012 that faces the partition wall through-hole 2003 a. The opposed direction means a direction orthogonal to the partition 2003. A portion 2018e of the hot water pipe 2018 from the position of the housing through hole 2126 to the position of the partition wall through hole 2003a is covered with the first clamp 2021, the second clamp 2022, the bracket 2026, and the seal 2024. Therefore, the hot water pipe 2018 is not exposed in the vehicle interior space 2004. Therefore, according to the air conditioning unit 2010 of the present specific example, the occupant can be prevented from touching the hot water pipe 2018 without adding a dedicated cover member.

Also, in the air-conditioning unit 2050 of comparative example 1-1, the portion from the heater core 2016 up to the fixing portion 2052 in the warm water piping 2018 is disposed outside the air-conditioning case 2012.

In contrast, in the air conditioning unit 2010 of the present specific example, the portion of the warm water pipe 2018 from the heater core 2016 to the first clamp 2021 and the second clamp 2022 is disposed inside the air conditioning case 2012. Therefore, according to the air conditioning unit 2010 of the present specific example, since the warm water pipes 2018 are not disposed outside the air conditioning casing 2012, the entire air conditioning unit can be downsized as compared with the air conditioning unit 2050 of comparative example 1-1.

In the air-conditioning unit 2010 of this specific example, the portion 2018c of the hot water pipe 2018, which is taken out of the case through hole 2126 to the outside of the air-conditioning case 2012, is linear.

This can shorten the portion 2018c of the hot water pipe 2018 to be taken out of the air-conditioning case 2012. Therefore, miniaturization of the air conditioning unit 2010 can be achieved. Further, the hot water pipe 2018 and the bracket 2026 can be easily assembled. The air conditioning unit 2010 is easily provided to the partition wall 2003.

In the air-conditioning unit 2010 of comparative example 1-1, the hot water pipe 2018 is firmly held by screwing.

In contrast, in the air-conditioning unit 2010 of this specific example, the first clamp portion 2021 and the second clamp portion 2022, which clamp the hot water pipe 2018 therebetween, are inserted between the first pressing rib 2031 and the second pressing rib 2032, and the hot water pipe 2018 is held thereby. The first pressing rib 2031 and the second pressing rib 2032 are formed of an integral resin molded product. Therefore, the hot water pipe 2018 can be prevented from being displaced from the first clamp portion 2021 and the second clamp portion 2022 in the radial direction of the hot water pipe 2018. Therefore, the hot water pipe 2018 can be firmly held without relying on screwing.

Further, the air-conditioning unit 2010 of comparative example 1-1 is added with a fixing portion 2052 formed of a member separate from the air-conditioning case 2012.

In contrast, in the air conditioning unit 2010 of this specific example, the first clamp portion 2021 and the downstream side case 2122 are formed of an integral resin molded product. The second clamp portion 2022 and the upstream side lower housing 2124 are formed of an integral resin molded product. Therefore, according to the air-conditioning unit 2010 of the present specific example, the number of components constituting the air-conditioning unit 2010 can be reduced as compared with the air-conditioning unit 2050 of comparative example 1-1.

In the air conditioning unit 2010 of this specific example, the first pressing rib 2031, the second pressing rib 2032, and the main body 2265 of the bracket 2026 are formed of an integral resin molded product.

Accordingly, the number of components constituting the air conditioning unit 2010 can be reduced as compared with a case where the first pressing rib 2031, the second pressing rib 2032, and the main body 2265 of the bracket 2026 are separate bodies.

In the air conditioning unit 2010 of this specific example, the pair of concave portions 2034 are provided in the hot water pipe 2018. The pair of convex portions 2036 is provided on the first clamp portion 2021. In a state where the first clamp portion 2021 and the second clamp portion 2022 sandwich the hot water pipe 2018, the respective concave portions 2034 of the pair of concave portions 2034 are fitted to the respective convex portions 2036 of the pair of convex portions 2036. Therefore, the hot water pipe 2018 can be prevented from being displaced with respect to the first clamp portion 2021 and the second clamp portion 2022 in the extending direction of the hot water pipe 2018. Therefore, the hot water pipe 2018 can be held more firmly.

In the air conditioning unit 2010 of comparative example 1-1, a fixing screw 2056 was used. Therefore, when assembling the air conditioning unit 2050, it is necessary to fix the fixing screw 2056 in a direction perpendicular to the extending direction of the hot water pipe 2018. In contrast, when the air conditioning unit 2010 of the present example is assembled, the bracket 2026 is inserted in the extending direction of the hot water pipe 2018 into the first clamp portion 2021 and the second clamp portion 2022 which sandwich the hot water pipe 2018. Thus, the first clamp portion 2021 and the second clamp portion 2022, which are in a state of sandwiching the hot water pipe 2018, are fitted and fixed between the first pressing rib 2031 and the second pressing rib 2032. Therefore, according to the air-conditioning unit 2010 of the present specific example, the work in the direction perpendicular to the extending direction of the hot water pipes 2018 can be eliminated when the air-conditioning unit 2010 is assembled.

(other example of reference example 1)

(1) In the above-described specific example, the entire housing through-hole 2126 is disposed in the region of the air-conditioning housing 2012 that faces the partition wall through-hole 2003a, but the present invention is not limited thereto. A part of the case penetration hole 2126 may be disposed in at least a part of a region of the air conditioning case 2012 that faces the partition wall penetration hole 2003 a. Further, a part of the case penetration hole 2126 may be disposed in at least a part of a region of the air conditioning case 2012 facing the partition wall penetration hole 2003a and the seal 2024. Even in this case, the distance between the case through hole 2126 and the partition wall through hole 2003a can be shortened. Therefore, the portion 2018e of the hot water pipe 2018 from the position of the housing through hole 2126 to the position of the partition wall through hole 2003a can be covered by the first clamp portion 2021, the second clamp portion 2022, the bracket 2026, and the packing 2024.

Further, when the positions of the case through hole 2126 and the partition wall through hole 2003a are shifted in the direction parallel to the partition wall 2003, a portion 2018e of the hot water pipe 2018 from the position of the case through hole 2126 to the position of the partition wall through hole 2003a may be curved. In this case, the portion 2018e may have a straight shape and extend in a direction intersecting the partition wall 2003.

(2) In the above-described specific example, the first clamp portion 2021 and the downstream side housing 2122 are formed of an integral resin molded product. The second clamp portion 2022 and the upstream lower case 2124 are formed of an integral resin molded product. However, the first clamp portion 2021 and the downstream side housing 2122 may be separate bodies. The second clamp portion 2022 and the upstream-side lower housing 2124 may be separate bodies.

(3) In the above-described specific example, the first pressing rib 2031, the second pressing rib 2032, and the body 2265 of the bracket 2026 are formed of an integral resin molded product, but the present invention is not limited thereto. The first pressing rib 2031, the second pressing rib 2032, and the main body 2265 of the bracket 2026 may be separate bodies. In this case, the first pressing rib 2031 and the second pressing rib 2032 are formed of an integral resin molded product.

(4) In the above-described example, the air conditioning unit 2010 is disposed below the rear seat 2006b, but the present invention is not limited thereto. The air conditioning unit 2010 may be disposed at any position in the vehicle interior 2002. For example, the air conditioning unit 2010 may be disposed on the vehicle front side in the vehicle compartment 2002.

(5) In the above-described specific example, the space on the other end 2018b side of the hot water pipe 2018 is the vehicle exterior space 2005, but the present invention is not limited thereto. The space on the other end 2018b side of the hot water extraction pipe 2018 may be a space such as a trunk room communicating with the vehicle interior space 2004.

(6) In the above-described specific example, the extending direction of the portion 2018c extending from the housing through hole 2126 to the other end 2018b of the hot water pipe 2018 is the direction perpendicular to the partition 2003, but the extending direction is not limited to this. The extending direction of the portion 2018c may be the direction intersecting the partition 2003.

(7) In the above-described specific example, the first clamp portion 2021, the second clamp portion 2022, the first pressing rib 2031, and the second pressing rib 2032 are used as the fixing portions, but the present invention is not limited to this. Other fixing members may be used as the fixing portion.

(8) In the above-described specific example, the seal 2024 is used as the seal portion, but the present invention is not limited thereto. As the sealing portion, other sealing members such as a gasket may be used.

(9) In the above-described specific example, the pair of concave portions 2034 is provided in the hot water pipe 2018, and the pair of convex portions 2036 is provided in the first clamp portion 2021, but the present invention is not limited thereto.

For example, the hot water pipe 2018 may be provided with one recess 2034 and the first clamp portion 2021 may be provided with a projection 2036.

The hot water pipe 2018 may be provided with a pair of protrusions 2036 and the first clamp portion 2021 may be provided with a pair of recesses 2034. One convex portion and one concave portion may be provided in each of the hot water pipes 2018, and one convex portion and one concave portion may be provided in each of the first clamp portions 2021. In short, the following configuration is sufficient. The hot water pipe 2018 is provided with a pipe-side first fitting portion and a pipe-side second fitting portion. The first clamp portion 2021 includes a clamp-side first fitting portion fitted to the pipe-side first fitting portion, and a clamp-side second fitting portion fitted to the pipe-side second fitting portion. The clamp-side first fitting portion and the clamp-side second fitting portion are formed so as to sandwich a portion of the hot water pipe 2018, at which the pipe-side first fitting portion and the pipe-side second fitting portion are provided. At this time, the pipe side first fitting portion is constituted by one of the first concave portion 2034a and the first convex portion 2036 a. The clamp-side first fitting portion is constituted by the other of the first concave portion 2034a and the first convex portion 2036a, which is different from the one. The pipe-side second fitting portion is constituted by one of the second concave portion 2034b and the second convex portion 2036 b. The clamp-side second fitting portion is formed by the other of the second recess 2034b and the second recess 2036 b.

Further, a pair of convex portions may be provided in the second clamp portion 2022 in addition to the pair of convex portions 2036 of the first clamp portion 2021. The shapes of the pair of concave portions 2034 and the pair of convex portions 2036 are not limited to those shown in the drawings.

(10) The reference example is not limited to the specific examples described above, and can be appropriately modified within the ranges described as the features of reference example 1, and various modifications and modifications within equivalent ranges are also included. The specific examples described above are not independent of each other, and can be combined appropriately unless it is obvious that the combination is not possible. In the above-described specific examples, it is needless to say that elements constituting the specific examples are not necessarily essential unless they are clearly shown in particular or clearly necessary in principle. In the above-described specific examples, when numerical values such as the number, numerical value, amount, and range of the constituent elements of the specific examples are mentioned, the number is not limited to a specific number unless otherwise stated explicitly or clearly limited to a specific number in principle. In the above-described specific examples, when referring to the material, shape, positional relationship, and the like of the constituent elements and the like, the material, shape, positional relationship, and the like are not limited to those unless otherwise specifically indicated or limited to a specific material, shape, positional relationship, and the like in principle.

(conclusion)

According to a first aspect shown in part or all of the above specific examples, the air conditioning unit includes an air conditioning case, a heating heat exchanger, a pipe, a fixing portion, and a sealing portion. In a state where the air conditioning casing is provided on the partition wall, the casing through hole is disposed in at least a part of a region facing the partition wall through hole and the seal portion in a direction orthogonal to the partition wall in the wall on the partition wall side of the air conditioning casing, and a portion from the position of the casing through hole to the position of the partition wall through hole in the piping is covered with the fixing portion and the seal portion.

In the air-conditioning case, the case through-hole is disposed in at least a part of a region of the air-conditioning case that faces the partition wall through-hole. Preferably, the housing through hole is arranged as described above.

In the third aspect, the portion of the pipe that is taken out from the casing through hole to the outside of the air conditioning casing is linear. This can shorten the portion of the pipe taken out from the through hole of the housing. Therefore, the air conditioning unit can be downsized compared to the case where the portion is bent. Further, the pipe and the fixing portion can be easily assembled. The air conditioning unit is easily installed on the partition wall.

In addition, according to a fourth aspect, the air conditioning casing includes a first casing section and a second casing section that are positioned on both sides of the casing through hole. The first housing portion has a part of a peripheral edge portion surrounding the housing through hole. The second housing portion has another part of the peripheral edge portion. The fixing portion has a first clamp portion and a second clamp portion that clamp the pipe. The first clamp portion extends from a part of the peripheral edge portion of the first case portion to the outside of the air-conditioning case. The first clamp portion and the first housing portion are formed of an integrally molded product. The second clamp portion extends from the other part of the peripheral edge portion of the second case portion to the outside of the air-conditioning case. The second clamp portion and the second housing portion are formed of an integrally molded product.

Thereby, the first clamping portion and the second clamping portion are integrated with the air conditioning case. Therefore, the number of components constituting the air conditioning unit can be reduced as compared with the case where the first clamp and the second clamp are separate bodies from the air conditioning casing.

In a fifth aspect, the seal portion is formed of a sheet-like seal. The air conditioning unit includes a seal installation section in which a seal is installed, and the seal is interposed between the seal installation section and the partition wall. The fixing portion has a first pressing portion and a second pressing portion that clamp and press both the first clamping portion and the second clamping portion that clamp the pipe therebetween. The first pressing portion, the second pressing portion, and the seal setting portion are formed of an integrally molded product.

Thus, the first pressing portion, the second pressing portion, and the seal setting portion are integrated. Therefore, the number of components constituting the air conditioning unit can be reduced as compared with the case where the two are separate bodies. In other words, it is not necessary to add a pressing portion by another member.

(feature 1)

An air conditioning unit for a vehicle, which blows warm air into a vehicle interior, the air conditioning unit comprising:

an air-conditioning case 2012 having an air passage 2012a formed therein;

a heating heat exchanger 2016 that is disposed inside the air conditioning casing and heats air by exchanging heat with a heat medium;

a pipe 2018 having one end 2018a and the other end 2018b opposite thereto, the one end side including the one end being connected to the heating heat exchanger in the air-conditioning case, the other end side including the other end being taken out to the outside of the air-conditioning case, the pipe being configured to allow the heat medium to flow; and

fixing portions 2021, 2022, 2031, 2032 for fixing the other end side of the pipe to the air-conditioning case,

the air conditioning casing is provided on a partition wall 2003 provided in the vehicle body,

the partition wall has a partition wall through-hole 2003a that partitions a vehicle interior space 2004 on a side where the air-conditioning case is provided and an opposite side space (2005) that sandwiches the partition wall with respect to the vehicle interior space and that penetrates the partition wall,

a wall 2125 on the partition wall side in the air-conditioning case has a case penetration hole 2126 penetrating the wall,

the other end side of the pipe is taken out to the opposite side space through the housing through hole and the partition wall through hole,

the air conditioning unit includes a seal portion 2024 for sealing a gap between the peripheral portion surrounding the partition wall through hole and the pipe,

in a state where the air-conditioning casing is provided on the partition wall, the casing through-hole is disposed in at least a part of a region opposed to the partition wall through-hole and the seal portion in a direction orthogonal to the partition wall in a wall on the partition wall side of the air-conditioning casing, and a portion 2018e of the piping from a position of the casing through-hole to a position of the partition wall through-hole is covered with the fixing portion and the seal portion.

(feature 2)

The air conditioning unit of feature 1,

the case through-hole is disposed in at least a part of a region of the air-conditioning case that faces the partition wall through-hole.

(feature 3)

Air conditioning unit according to claim 1 or 2, characterized in that,

the portion (2018c) of the pipe, which is taken out from the case through hole to the outside of the air-conditioning case, is linear.

(feature 4)

The air conditioning unit of any of features 1-3,

the air conditioning casing has a first casing portion 2122 and a second casing portion 2124 which are located on both sides of the casing through hole,

the first housing part has a part 2127a of a peripheral edge 2127 surrounding the housing through hole,

the second housing part has another part 2127b of the peripheral edge portion,

the fixing portion has a first clamp portion 2021 and a second clamp portion 2022 which clamp the pipe,

the first clamping portion extends from the portion of the peripheral edge portion of the first housing portion to an outside of the air-conditioning housing,

the first clamp portion and the first housing portion are formed of an integrally formed product,

the second clamping portion extends from the other part of the peripheral edge portion of the second housing portion to the outside of the air-conditioning housing,

the second clamp portion and the second housing portion are formed of an integrally molded product.

(feature 5)

The air conditioning unit of claim 4,

the seal is constituted by a sheet-like seal 2024,

the air conditioning unit includes a seal installation unit 2265 in which the seal is installed so as to sandwich the seal with the partition wall,

the fixing portion has a first pressing portion 2031 and a second pressing portion 2032 that clamp and press both the first clamping portion and the second clamping portion sandwiching the pipe,

the first pressing portion, the second pressing portion, and the seal setting portion are formed of an integrally molded product.

[ reference example 2]

The present reference example relates to an air conditioning unit.

Patent document 3 discloses an air conditioning unit. The air conditioning unit includes a pair of clamps that are configured to be separated from the air conditioning casing. The pair of clamps fix a pipe connected to a heat exchanger inside the air conditioning casing to the air conditioning casing. The pair of clamping portions clamp and hold the pipe. A claw portion is formed on one of the pair of clamping portions. A hole is formed in the other of the pair of clamp portions. The claw portion is bent and fitted into the hole portion, thereby fixing the pair of clamp portions to each other.

In this way, in the air conditioning unit, the pair of clamp portions are fixed to each other by the claw fitting structure without relying on screw fixation.

Patent document 3: japanese laid-open patent publication No. 2002-

However, the claw fitting structure has a weak holding force in a direction in which the pair of clamp portions sandwich the pipe therebetween. A play is generated between the pair of clamping portions and the pipe. Therefore, the pipe cannot be firmly held in the claw fitting structure. As a result, the present inventors have found that the following problems occur.

After the air conditioning unit is installed, the insertion hose is connected to the end of the pipe. At this time, the pipe fixed to the pair of clamp portions by the insertion force of the hose is displaced in the insertion direction of the hose. The pipe is deformed by the deviation, and the path cannot be maintained. Then, stress is generated in the heat exchanger due to the deviation, and the heat exchanger is damaged.

In view of the above-described problems, an object of the present reference example is to provide an air conditioning unit that can hold a pipe more firmly than a claw fitting structure without relying on screw fastening.

In order to achieve the above object, an air conditioning unit according to feature 1 of the present reference example is an air conditioning unit for a vehicle that blows out conditioned air into a vehicle interior, and includes:

an air conditioning case having an air passage formed therein;

a heat exchanger disposed inside the air conditioning casing and configured to exchange heat between the heat medium and air; a pipe connected to the heat exchanger and through which a heat medium flows; and

a fixing portion for fixing the pipe to the air conditioning case,

the fixing portion has a first clamping portion and a second clamping portion for clamping the pipe, and a first pressing portion and a second pressing portion for clamping and pressing both the first clamping portion and the second clamping portion in a state of clamping and pressing the pipe,

the first clamping part and the second clamping part are formed by forming products which are separated from each other,

the first pressing portion and the second pressing portion are formed of an integrally molded product.

In this air conditioning unit, the first clamping portion and the second clamping portion, which sandwich the pipe, are inserted between the first pressing portion and the second pressing portion, thereby holding the pipe. Therefore, the pipe can be held without relying on screwing. The first pressing portion and the second pressing portion are formed of an integrally molded product. Therefore, the pipe can be more firmly held than the claw fitting structure.

A specific example of this reference example will be described below with reference to the drawings. In the following specific examples, the same or equivalent portions are denoted by the same reference numerals.

(first embodiment of reference example 2)

As shown in fig. 20, the vehicle air conditioning unit 3010 of this specific example is disposed in the vehicle interior 3002 of the vehicle 3001. The air conditioning unit 3010 constitutes a part of an air conditioning device for a vehicle. The air conditioning unit 3010 blows warm air as air conditioning air into the vehicle compartment.

The air conditioning unit 3010 is provided at a partition 3003 provided in the vehicle body. The vehicle body is a main body of the vehicle 3001. Partition 3003 is a mounting wall on which air conditioning unit 3010 is mounted. The partition 3003 forms a floor surface of the vehicle compartment 3002. The partition 3003 partitions the vehicle interior space 3004 and the vehicle exterior space 3005. The vehicle exterior space 3005 is an opposite side space that is opposite to the vehicle interior space 3004 with the partition 3003 interposed therebetween. A plurality of seats 3006 are provided in the vehicle compartment 3002. The plurality of seats 3006 include an operator's seat 3006a and a rear seat 3006b on the vehicle rear side of the operator's seat 3006 a. The air conditioning unit 3010 is disposed below the rear seat 3006 b.

As shown in fig. 21, the air conditioning unit 3010 includes an air conditioning casing 3012, a blower 3014, and a heater core 3016. The air conditioning unit 3010 is a dedicated air conditioning unit for heating.

The air conditioning case 3012 is an outer case of the air conditioning unit 3010. The air conditioning case 3012 is made of resin. The air conditioning case 3012 has an air passage 3012a formed therein. The air passage 3012a extends along the partition wall 3003. Therefore, the flow direction of the air flowing in the air passage 3012a is the direction along the partition 3003. Although not shown, a duct is connected to the downstream side of the air-conditioning casing 3012 in the air flow.

The blower 3014 is disposed inside the air conditioning casing 3012. The blower 3014 forms an air flow toward the vehicle interior. The blower 3014 has a centrifugal fan 3141 and a fan motor 3142. The fan motor 3142 is an electric component that rotates the fan 3141.

The heater core 3016 is disposed inside the air conditioning casing 3012. The heater core 3016 is disposed on the downstream side of the air flow of the blower 3014. The heater core 3016 is a heating heat exchanger that heats air by exchanging heat with a heat medium. The heat medium is engine cooling water as warm water.

In this specific example, the entire heater core 3016 is disposed inside the air conditioning casing 3012. The air inflow surface 3016a and the air outflow surface 3016b of the heater core 3016 are in a direction orthogonal to or close to the partition 3003.

The air conditioning unit 3010 has two hot water pipes 3018. The hot water pipe 3018 allows engine cooling water to flow. The hot water pipe 3018 has a substantially cylindrical shape. The hot water pipe 3018 has one end 3018a and the other end 3018b on the opposite side of the one end 3018 a. One end 3018a of the hot water pipe 3018 including the one end 3018a is connected to the heater core 3016. The other end 3018b of the hot water pipe 3018 including the other end 3018b is taken out to the outside of the air-conditioning case 3012. The other end 3018b of the hot water pipe 3018 is taken out to the vehicle exterior space 3005.

In the air conditioning unit 3010, air from the blower 3014 passes through the heater core 3016. The air is heated while passing through the heater core 3016, thereby forming warm air. The warm air is blown out into the vehicle interior 3002 through a duct not shown.

As shown in fig. 21, 22, and 23, the air-conditioning casing 3012 has an upstream-side casing 3121 and a downstream-side casing 3122. The upstream side case 3121 constitutes a portion on the airflow upstream side in the air-conditioning case 3012. The downstream side housing 3122 constitutes a portion of the air-conditioning housing 3012 on the air flow downstream side of the upstream side housing 3121. The upstream-side housing 3121 also has an upstream-side upper housing 3123 and an upstream-side lower housing 3124. The upstream side upper housing 3123 constitutes an upper side portion in the upstream side housing 3121. The upstream side lower housing 3124 constitutes a lower portion in the upstream side housing 3121. The upstream side housing 3121 is configured by connecting the upstream side upper housing 3123 and the upstream side lower housing 3124. The air conditioning case 3012 is configured by connecting the upstream side case 3121 and the downstream side case 3122. A duct, not shown, is connected to the downstream side of the downstream housing 3122 in the air flow.

As shown in fig. 25, the bottom wall 3125 of the air-conditioning case 3012 has a case penetration hole 3126 penetrating the bottom wall 3125. The housing through hole 3126 is formed of a peripheral edge portion 3127 surrounding the housing through hole 3126.

The bottom wall 3125 is a wall on the partition wall 3003 side in the air-conditioning case 3012. The case through hole 3126 is formed in the joining portion 3124a of the upstream side lower case 3124 and the joining portion 3122a of the downstream side case 3122. In other words, the downstream side housing 3122 and the upstream side lower housing 3124 are located on both sides across the housing penetration hole 3126. The downstream side housing 3122 has a part 3127a of the peripheral portion 3127 of the housing penetration hole 3126. The upstream lower housing 3124 has another part 3127b of the peripheral portion 3127 of the housing through hole 3126.

The other end 3018b of the hot water pipe 3018 is taken out of the air-conditioning case 3012 through the case through hole 3126. A portion 3018c of the hot water pipe 3018, which is taken out of the air-conditioning casing 3012 from the casing through hole 3126 to the other end 3018b, is linear. The extending direction of the portion 3018c is a direction orthogonal to the partition 3003. The extending direction of the portion 3018c may be a direction intersecting the partition 3003.

The partition 3003 has a partition through hole 3003a penetrating the partition 3003. The partition wall through holes 3003a are provided corresponding to the two hot water pipes 3018, respectively. In a state where air-conditioning casing 3012 is installed at partition 3003, hot water pipe 3018 is taken out to outside vehicle compartment 3005 through partition through-hole 3003a at the other end 3018b side. The hot water pipe 3018 is connected to a hot water hose, not shown, at the other end 3018 b.

As shown in fig. 21 and 22, the hot water pipe 3018 is arranged in a curved manner to form a predetermined pipe path in the air passage 3012 a. That is, the hot water pipe 3018 is bent in a range from the one end 3018a to the housing through hole 3126. In other words, the portion of the hot water pipe 3018 extending from the one end 3018a to the housing through hole 3126 has a bent portion 3018 d. In this specific example, a part of the internal space of the air conditioning casing 3012 is used as an arrangement area of the hot water pipe 3018.

As shown in fig. 23, 25, and 26, the air conditioning case 3012 has two each of a first clamp portion 3021 and a second clamp portion 3022. The first clamp portion 3021 and the second clamp portion 3022 are located outside the air conditioning case 3012. Each of the two hot water pipes 3018 includes a first clamp 3021 and a second clamp 3022. The first clamp portion 3020 and the second clamp portion 3021 are fixing portions that are fixed to the air conditioning case 3012 with the hot water pipe 3018 interposed therebetween. The inner wall surface of the first clamp portion 3021 and the inner wall surface of the second clamp portion 3022 have shapes corresponding to the outer shape of the hot water pipe 3018.

As shown in fig. 25, the first clamping portion 3021 is connected to a portion 3127a of the peripheral portion 3127 which the downstream side case 3122 has. The first clamping portion 3021 extends from a portion 3127a of the peripheral edge portion 3127 to the outside of the air-conditioning case 3012. The first clamp portion 3021 and the downstream side housing 3122 are formed of an integral resin molded product. In this specific example, the downstream side housing 3122 corresponds to a first housing.

The second clamping portion 3022 is connected to the other portion 3127b of the peripheral portion 3127 of the upstream side lower housing 3124. The second clamping portion 3022 extends from the other portion 3127b of the peripheral portion 3127 to the outside of the air-conditioning case 3012. The second clamp portion 3022 and the upstream side lower housing 3124 are formed of an integral resin molded product. In this specific example, the upstream side lower housing 3124 corresponds to a second housing.

As shown in fig. 23, 24, and 25, the air conditioning unit 3010 includes a seal 3024 and a bracket 3026. The seal 3024 is a seal portion that closes a gap between the hot water pipe 3018 and the peripheral edge portion surrounding the partition wall through hole 3003 a. The seal 3024 has a seal through-hole 3241 for allowing the hot water pipe 3018 to pass therethrough. The seal 3024 is sheet-like. The seal 3024 is made of foamed urethane resin.

The bracket 3026 is a member having a mounting surface 3261 on which the seal 3024 is provided. The bracket 3026 includes a body portion 3265 that is a plate-shaped member, and a side wall portion 3266 connected to the periphery of the body portion 3265. The body portion 3265 includes an installation surface 3261 and an opposite surface 3264 opposite to the installation surface 3261. In this specific example, the main body portion 3265 corresponds to a seal installation portion. The body portion 3265 is formed with a bracket through hole 3262 through which the hot water pipe 3018 passes.

As shown in fig. 25, the bracket 3026 is fixed to the bottom wall 3125 of the air-conditioning case 3012 by a small screw 3263. The bracket 3026 may be fixed by other methods. The body portion 3265 sandwiches a seal 3024 with a partition 3003 of the vehicle body. This closes the gap between the hot water pipe 3018 and the peripheral edge portion surrounding the partition wall through hole 3003 a.

The bracket 3026 has two first pressing ribs 3031 and two second pressing ribs 3032. Each of the two warm water pipes 3018 is provided with one first pressing rib 3031 and one second pressing rib 3032. The first pressing rib 3031 and the second pressing rib 3032 are fixing portions that fix the hot water pipe 3018 to the air-conditioning case 3012 by clamping and pressing both the first clamp portion 3021 and the second clamp portion 3022, respectively. The first pressing rib 3031 corresponds to a first pressing portion. The second pressing rib 3032 corresponds to a second pressing portion.

As shown in fig. 27, the first pressing rib 3031 and the second pressing rib 3032 are formed on the opposite surface 3264 of the main body portion 3265. The first pressing rib 3031 and the second pressing rib 3032 protrude from the opposite face 3264. The first pressing rib 3031 and the second pressing rib 3032 extend linearly. The first pressing rib 3031 and the second pressing rib 3032 are linearly arranged in parallel with a space therebetween. In this specific example, the first pressing rib 3031 and the second pressing rib 3032 are arranged along a straight line.

The first and second pressing ribs 3031 and 3032 are integral with the bracket 3026. That is, the first pressing rib 3031, the second pressing rib 3032, and the body portion 3265 are formed of an integral resin molded product.

Fig. 29 is a sectional view of the bracket 3026 in fig. 28. As shown in fig. 29, in a state where the bracket 3026 is fixed to the air-conditioning case 3012, the first clamp portion 3021 and the second clamp portion 3022 sandwich the hot water pipe 3018. In the arrangement direction of the first clamp portion 3021 and the second clamp portion 3022, the first pressing rib 3031 and the second pressing rib 3032 clamp and press the first clamp portion 3021 and the second clamp portion 3022 sandwiching the hot water pipe 3018. Thereby, the first clamp portion 3021 and the second clamp portion 3022 are fixed with the hot water pipe 3018 interposed therebetween.

When the bracket 3026 is assembled, the bracket 3026 is inserted into the first clamp portion 3021 and the second clamp portion 3022 which sandwich the hot water pipe 3018. Thus, the first clamp portion 3021 and the second clamp portion 3022 sandwiching the hot water pipe 3018 are press-fitted between the first pressing rib 3031 and the second pressing rib 3032. Therefore, the first clamp portion 3021 and the second clamp portion 3022 sandwiching the hot water pipe 3018 are held by the first pressing rib 3031 and the second pressing rib 3032 in a state of being pressed into between the first pressing rib 3031 and the second pressing rib 3032. In this way, the first clamp portion 3021 and the second clamp portion 3022 sandwiching the hot water pipe 3018 are fitted between the first pressing rib 3031 and the second pressing rib 3032 so that the first clamp portion 3021 and the second clamp portion 3022 do not separate from each other.

Fig. 30 shows a state in which the first clamp portion 3021 of the downstream housing 3122 holds the hot water pipe 3018. Fig. 31 is an enlarged view of the first clamp section 3021 and the hot water pipe 3018 in fig. 30.

As shown in fig. 31, a pair of concave portions 3034 is provided on an outer surface 3181 of the hot water pipe 3018. Each of the pair of concave portions 3034 is a portion that is recessed toward the center of the hot water pipe 3018. One of the pair of concave portions 3034 is a first concave portion 3034 a. The other of the pair of recessed portions 3034 is a second recessed portion 3034 b. The hot water pipe 3018 has a narrower width than the hot water pipe 3018 at a portion where the pair of recesses 3034 are provided, as compared with a portion other than the pair of recesses 3034 in the hot water pipe 3018.

The pair of concave portions 3034 are disposed on both sides of the center of the hot water pipe 3018. The bottom surface 3341 of each recess 3034 of the pair of recesses 3034 is a flat surface. The recess direction of each recess 3034 of the pair of recesses 3034 is the left-right direction in fig. 31. The left-right direction in fig. 31 is a direction parallel to the abutting surface 3212 of the first clamp portion 3021. As shown in fig. 29, the abutting surface 3212 is a surface that contacts the second clamping portion 3022. In other words, the left-right direction in fig. 31 is a direction perpendicular to the arrangement direction of the first clamp portion 3021 and the second clamp portion 3022.

A pair of convex portions 3036 is provided on an inner surface 3211 of the first clamp portion 3021. The pair of protrusions 3036 are portions protruding from the inner surface 3211 toward the hot water pipe 3018. One of the pair of convex portions 3036 is a first convex portion 3036 a. The other of the pair of convex portions 3036 is a second convex portion 3036 b.

Each of the pair of convex portions 3036 is provided at a position facing each of the concave portions 3034 of the pair of concave portions 3034 in the inner surface 3211 in a state where the first clamp portion 3021 and the second clamp portion 3022 sandwich the hot water pipe 3018. That is, the first convex portion 3036a is provided at a position facing the first concave portion 3034 a. The second convex portion 3036b is provided at a position facing the second concave portion 3034 b.

The pair of convex portions 3036 are disposed at positions facing each other in the inner surface 3211. In other words, the pair of protrusions 3036 are provided on both sides of the first clamp portion 3021 that sandwich the hot water pipe 3018, with the first clamp portion 3021 in contact with the hot water pipe 3018. The top portion 3361 of each of the convex portions 3036 of the pair of convex portions 3036 is a flat surface.

In a state where the first clamp portion 3021 and the second clamp portion 3022 sandwich the hot water pipe 3018, each concave portion 3034 of the pair of concave portions 3034 is fitted to each convex portion 3036 of the pair of convex portions 3036. More specifically, the first convex portion 3036a and the second convex portion 3036b sandwich a portion of the hot water pipe 3018 where the first concave portion 3034a and the second concave portion 3034b are provided. Thereby, the first convex portion 3036a is fitted to the first concave portion 3034 a. The second convex portion 3036b is fitted to the second concave portion 3034 b.

In this specific example, the first recess portion 3034a constitutes a pipe-side fitting portion or a pipe-side first fitting portion provided in the pipe. The second recess portion 3034b constitutes a pipe-side second fitting portion provided in the pipe. The first projection 3036a constitutes a clamp-side fitting portion or a clamp-side first fitting portion that fits with the pipe-side fitting portion. The second projection 3036b constitutes a clamp-side second fitting portion that fits with the pipe-side second fitting portion.

Next, the effects of the air conditioning unit 3010 in this specific example will be described while comparing it with the air conditioning unit 3050 of comparative example 2-1 shown in fig. 32 and 33.

In the air conditioning unit 3050 of comparative example 2-1, the portion of the heater core 3016 connected to the hot water pipe 3018 is located outside the air conditioning case 3012. The hot water pipe 3018 is fixed to the air-conditioning casing 3012 by a fixing portion 3052, and the fixing portion 3052 is formed by a separate member from the air-conditioning casing 3012. A portion of the hot water pipe 3018 from the heater core 3016 to the fixing portion 3052 is bent outside the air-conditioning case 3012. A portion of the hot water pipe 3018 extending from the heater core 3016 to the fixing part 3052 is covered with a dedicated cover member 3054 for the purpose of covering only the hot water pipe 3018. The fixing portion 3052 sandwiches the hot water pipe 3018. The fixing part 3052 is fastened by the fixing screw 3056, whereby the hot water pipe 3018 is firmly held.

Thus, the hot water pipe 3018 is firmly held by screwing in the air conditioning unit 3010 of comparative example 2-1.

In contrast, in the air conditioning unit 3010 of this specific example, the first clamp portion 3021 and the second clamp portion 3022, which are in a state of sandwiching the hot water pipe 3018, are inserted between the first pressing rib 3031 and the second pressing rib 3032, thereby holding the hot water pipe 3018. Therefore, the hot water pipe 3018 can be held without relying on screwing. The first pressing rib 3031 and the second pressing rib 3032 are formed of an integral resin molded product. Therefore, the hot water pipe 3018 can be prevented from being displaced from the first clamp section 3021 and the second clamp section 3022 in the radial direction of the hot water pipe 3018. That is, the hot water pipe 3018 can be held more firmly than the claw fitting structure.

In the air conditioning unit 3010 of this specific example, a pair of concave portions 3034 is provided in the hot water pipe 3018. The pair of convex portions 3036 is provided to the first clamp portion 3021. In a state where the first clamp portion 3021 and the second clamp portion 3022 sandwich the hot water pipe 3018, each concave portion 3034 of the pair of concave portions 3034 is fitted to each convex portion 3036 of the pair of convex portions 3036. Therefore, the hot water pipe 3018 can be prevented from being displaced from the first clamp section 3021 and the second clamp section 3022 in the extending direction of the hot water pipe 3018. Therefore, the hot water pipe 3018 can be held more firmly.

In particular, in the air conditioning unit 3010 of this specific example, the first protrusion 3036a and the second protrusion 3036b are provided on the first clamp portion 3021. The first convex portion 3036a and the second convex portion 3036b sandwich a portion of the hot water pipe 3018 where the first concave portion 3034a and the second concave portion 3034b are provided. The first convex portion 3036a is fitted in the first concave portion 3034 a. The second convex portion 3036b is fitted into the first concave portion 3034 b. Therefore, even if the first clamp portion 3021 and the second clamp portion 3022 are separated from each other, the state in which the first clamp portion 3021 is fitted to the hot water pipe 3018 can be maintained. Therefore, the hot water pipe 3018 can be further prevented from being displaced in the extending direction of the hot water pipe 3018.

In the air conditioning unit of comparative example 2-1, a dedicated cover member 3054 is added. This causes problems such as an increase in the price of the air conditioning unit and an increase in the number of assembly steps for manufacturing the air conditioning unit.

In contrast, in the air-conditioning unit 3010 of this specific example, as shown in fig. 25, in a state where the air-conditioning casing 3012 is provided on the partition 3003, the casing through-hole 3126 is disposed in a region of the air-conditioning casing 3012 that faces the partition through-hole 3003 a. The opposed direction means a direction orthogonal to the partition 3003. A portion 3018e of the hot water pipe 3018 extending from the position of the housing through hole 3126 to the position of the partition through hole 3003a is covered with the first clamp 3021, the second clamp 3022, the bracket 3026, and the seal 3024. Therefore, the hot water pipe 3018 is not exposed to the vehicle interior space 3004. Therefore, according to the air conditioning unit 3010 of this specific example, the occupant can be prevented from touching the hot water pipe 3018 without adding a dedicated cover member.

Further, in the air-conditioning unit 3050 of comparative example 2-1, the portion of the hot-water pipe 3018 from the heater core 3016 to the fixing portion 3052 is disposed outside the air-conditioning case 3012.

In contrast, in the air-conditioning unit 3010 of this specific example, the portion of the hot-water pipe 3018 extending from the heater core 3016 to the first clamp section 3021 and the second clamp section 3022 is disposed inside the air-conditioning case 3012. Therefore, according to the air conditioning unit 3010 of this specific example, since the hot water pipe 3018 is disposed outside the air conditioning casing 3012, the whole air conditioning unit can be made smaller than the air conditioning unit 3050 of comparative example 2-1.

In the air-conditioning unit 3010 of this specific example, a portion 3018c of the hot water pipe 3018, which is taken out to the outside of the air-conditioning casing 3012 from the casing through hole 3126, is linear.

This can shorten the portion 3018c of the hot water pipe 3018 to be taken out of the air-conditioning case 3012. Therefore, the air conditioning unit 3010 can be downsized. Further, the hot water pipe 3018 and the bracket 3026 are easily assembled. Partition 3003 can be easily installed in air conditioning unit 3010.

Further, the air-conditioning unit 3010 of comparative example 2-1 is provided with a fixing portion 3052 formed of a member separate from the air-conditioning case 3012.

In contrast, in the air conditioning unit 3010 of this specific example, the first clamp portion 3021 and the downstream side housing 3122 are formed of an integral resin molded product. The second clamp portion 3022 and the upstream side lower housing 3124 are formed of an integral resin molded product. Therefore, according to the air conditioning unit 3010 of this specific example, the number of components constituting the air conditioning unit 3010 can be reduced as compared with the air conditioning unit 3050 of comparative example 2-1.

In the air conditioning unit 3010 of this specific example, the first pressing rib 3031, the second pressing rib 3032, and the main body portion 3265 of the bracket 3026 are formed of an integral resin molded product.

This allows the number of components constituting the air conditioning unit 3010 to be reduced as compared with a case where the first pressing rib 3031 and the second pressing rib 3032 are separate bodies, and the main body portion 3265 of the bracket 3026 is provided.

In the air conditioning unit 3010 of comparative example 2-1, a fixing screw 3056 was used. Therefore, when assembling the air conditioning unit 3050, it is necessary to fix the fixing screw 3056 in a direction perpendicular to the extending direction of the hot water pipe 3018. In contrast, when the air conditioning unit 3010 of this specific example is assembled, the bracket 3026 is inserted into the first clamp portion 3021 and the second clamp portion 3022 in a state where the hot water pipe 3018 is sandwiched therebetween, in the extending direction of the hot water pipe 3018. Thus, the first clamp portion 3021 and the second clamp portion 3022 sandwiching the hot water pipe 3018 are fitted and fixed between the first pressing rib 3031 and the second pressing rib 3032. Therefore, according to the air conditioning unit 3010 of this specific example, work in a direction perpendicular to the extending direction of the hot water pipe 3018 can be eliminated when assembling the air conditioning unit 3010.

(other specific example of reference example 2)

(1) In the above-described specific example, the entirety of the case through hole 3126 is disposed in the region of the air-conditioning case 3012 that faces the partition wall through hole 3003a, but the present invention is not limited thereto. A part of the case penetration hole 3126 may be disposed in at least a part of a region of the air-conditioning case 3012 that faces the partition wall penetration hole 3003 a. Further, a part of the case penetration hole 3126 may be disposed in at least a part of a region of the air-conditioning case 3012 that faces the partition wall penetration hole 3003a and the seal 3024. Even in such a case, the distance between the housing through hole 3126 and the partition through hole 3003a can be shortened. Therefore, the portion 3018e of the warm water pipe 3018 from the position of the housing through hole 3126 to the position of the partition wall through hole 3003a can be covered with the first clamp portion 3021, the second clamp portion 3022, the bracket 3026, and the seal 3024.

In addition, when the positions of the housing through hole 3126 and the partition through hole 3003a are shifted in the direction parallel to the partition 3003, a portion 3018e of the hot water pipe 3018 from the position of the housing through hole 3126 to the position of the partition through hole 3003a may be curved. In this case, the portion 3018e may be linear and extend in a direction intersecting the partition 3003.

(2) In the above-described specific example, the first clamp portion 3021 and the downstream side housing 3122 are formed of an integral resin molded product, and the second clamp portion 3022 and the upstream side lower housing 3124 are formed of an integral resin molded product. The first clamp portion 3021 and the downstream side housing 3122 may be separate bodies. The second clamping portion 3022 and the upstream lower housing 3124 may be separate bodies.

(3) In the above-described specific example, the first pressing rib 3031, the second pressing rib 3032, and the main body portion 3265 of the bracket 3026 are formed of an integral resin molded product, but the present invention is not limited thereto. The first and second pressing ribs 3031 and 3032 and the body portion 3265 of the bracket 3026 may be separate bodies. In this case, the first pressing rib 3031 and the second pressing rib 3032 are formed of an integral resin molded product.

(4) In the above-described specific example, the first clamp portion 3021, the second clamp portion 3022, the first pressing rib 3031, and the second pressing rib 3032 fix the hot water pipe 3018 on the outside of the air-conditioning case 3012, but the present invention is not limited thereto. The first clamp portion 3021, the second clamp portion 3022, the first pressing rib 3031, and the second pressing rib 3032 may also fix the hot water pipe 3018 inside the air-conditioning case 3012. This can be achieved by the following configuration, for example. The first clamp portion 3021 and the second clamp portion 3022 are separate bodies from the air conditioner case 3012. The first and second pressing ribs 3031 and 3032 are separate bodies from the body portion 3265 of the bracket 3026.

(5) In the above-described specific example, the air conditioning unit 3010 is disposed below the rear seat 3006b, but is not limited thereto. The air conditioning unit 3010 may be disposed at any position in the vehicle compartment 3002. For example, the air conditioning unit 3010 may be disposed on the vehicle front side in the vehicle compartment 3002.

(6) In the above-described specific example, the space on the side of the removal end 3018b of the hot water pipe 3018 is the vehicle exterior space 3005, but the present invention is not limited to this. The space on the side of the other end 3018b of the hot water pipe 3018 may be a space such as a luggage room communicating with the vehicle interior space 3004.

(7) In the above-described specific example, the extending direction of the portion 3018c of the hot water pipe 3018 extending from the housing through hole 3126 to the other end 3018b is the direction perpendicular to the partition 3003, but the present invention is not limited to this. The extending direction of the portion 3018c may be a direction intersecting the partition 3003.

(8) In the above-described specific example, the heating heat exchanger that heats air by exchanging heat between the heat medium and the air is used as the heat exchanger, but the present invention is not limited to this. As the heat exchanger, a cooling heat exchanger that cools air by exchanging heat between a heat medium and air may be used. In this case, the air conditioning unit 3010 blows out cold air as air conditioning air into the vehicle interior. The refrigerant as a heat medium flows through a pipe connected to the heat exchanger.

(9) In the above-described specific example, the seal 3024 is used as the seal portion, but the present invention is not limited thereto. Other sealing members such as a gasket may be used as the sealing portion.

(10) In the above-described specific example, the pair of concave portions 3034 is provided in the hot water pipe 3018, and the pair of convex portions 3036 is provided in the first clamp portion 3021, but the present invention is not limited thereto.

For example, the hot water pipe 3018 may be provided with one concave portion 3034 and the first clamp portion 3021 may be provided with one convex portion 3036.

The hot water pipe 3018 may be provided with a pair of protrusions 3036, and the first clamp 3021 may be provided with a pair of recesses 3034. One projection and one recess may be provided in the hot water pipe 3018, and one projection and one recess may be provided in the first clamp 3021. In short, one of the first concave portion 3034a and the first convex portion 3036a may be provided on one of the hot water pipe 3018 and the first clamp portion 3021, and the other of the first concave portion 3034a and the first convex portion 3036a may be provided on the other of the hot water pipe 3018 and the first clamp portion 3021. One of the second concave portion 3034b and the second convex portion 3036b may be provided on one of the hot water pipe 3018 and the first clamp portion 3021, and the other of the second concave portion 3034b and the second convex portion 3036b different from the one may be provided on the other of the hot water pipe 3018 and the first clamp portion 3021.

Further, in addition to the pair of convex portions 3036 of the first clamp portion 3021, a pair of convex portions may be provided on the second clamp portion 3022. The shape of each of the pair of concave portions 3034 and the pair of convex portions 3036 is not limited to the shape shown in the figure.

(11) The reference example is not limited to the specific examples described above, and can be appropriately modified within the ranges described as the features of reference example 2, and includes various modifications and modifications within equivalent ranges. The specific examples described above are not mutually exclusive, and can be combined as appropriate except when combination is apparently impossible. In the above-described specific examples, it is needless to say that elements constituting the specific examples are not necessarily essential unless they are clearly shown in particular or clearly necessary in principle. In the above-described specific examples, when numerical values such as the number, numerical value, amount, and range of the constituent elements of the specific examples are mentioned, the number is not limited to a specific number unless otherwise stated explicitly or clearly limited to a specific number in principle. In the above-described specific examples, when referring to the material, shape, positional relationship, and the like of the constituent elements and the like, the material, shape, positional relationship, and the like are not limited to those unless otherwise specifically indicated or limited to a specific material, shape, positional relationship, and the like in principle.

(conclusion)

According to a first aspect shown in part or all of the above specific examples, the air conditioning unit includes an air conditioning case, a heat exchanger, a pipe, and a fixing portion. The fixing portion has both a first clamp portion and a second clamp portion that clamp the pipe and a first clamp portion and a second clamp portion that clamp and press the pipe. The first clamping portion and the second clamping portion are formed by forming products which are separated from each other. The first pressing portion and the second pressing portion are formed of an integrally molded product.

Further, according to a second aspect, the pipe is provided with a pipe-side fitting portion. The first clamp portion is provided with a clamp-side fitting portion that fits with the pipe-side fitting portion. The pipe-side fitting portion is formed of one of the concave portion and the convex portion. The clamp-side fitting portion is formed of the other of the concave portion and the convex portion different from the one.

Thus, the pipe is clamped by the first clamping portion and the second clamping portion in a state where the pipe-side fitting portion is fitted to the clamping-side fitting portion. Therefore, the pipe can be prevented from being displaced from the fixing portion in the extending direction of the pipe. Therefore, the pipe can be held more firmly.

Further, according to a third aspect, the pipe-side fitting portion is a pipe-side first fitting portion. The clamp-side fitting portion is a clamp-side first fitting portion. The recess is a first recess. The convex portion is a first convex portion. The pipe is provided with a pipe side second fitting portion disposed opposite to the pipe side first fitting portion. The first clamping portion is provided with a clamping side second embedding portion which is arranged opposite to the clamping side first embedding portion and is embedded with the pipe side second embedding portion. The clamp-side first fitting portion and the clamp-side second fitting portion clamp a portion of the pipe where the pipe-side first fitting portion and the pipe-side second fitting portion are provided. The pipe-side second fitting portion is formed of one of the second concave portion and the second convex portion. The clamp-side second fitting portion is formed of the other of the second concave portion and the second convex portion.

Thus, the clamp-side first fitting portion and the clamp-side second fitting portion are provided in the first clamp portion. The clamp-side first fitting portion and the clamp-side second fitting portion clamp a portion of the pipe where the pipe-side first fitting portion and the pipe-side second fitting portion are provided. The first clamping-side fitting portion and the second clamping-side fitting portion are fitted to the first pipe-side clamping portion and the second pipe-side clamping portion. Therefore, even if the first clamp portion and the second clamp portion are separated, the fitting state between the first clamp portion and the pipe can be positioned. Therefore, the pipe can be prevented from being displaced from the fixing portion in the extending direction of the pipe.

Further, according to a fourth aspect, the wall of the air conditioning casing has a casing through hole penetrating the wall. The pipe has one end and the other end opposite to the one end, the one end side including the one end is connected to the heat exchanger inside the air-conditioning case, and the other end side including the other end is taken out to the outside of the air-conditioning case through the case through hole. The air conditioning casing has a first casing section and a second casing section located on both sides of the casing through hole. The first housing portion has a part of a peripheral edge portion surrounding the housing through hole. The second housing portion has another part of the peripheral edge portion. The first clamp portion extends from a part of the peripheral edge portion of the first case portion to the outside of the air-conditioning case. The first clamp portion and the first housing portion are formed of an integrally molded product. The second clamp portion extends from the other part of the peripheral edge portion of the second case portion to the outside of the air-conditioning case. The second clamp portion and the second housing portion are formed of an integrally molded product.

Thereby, the first clamping portion and the second clamping portion are integrated with the air conditioning case. Therefore, the number of components constituting the air conditioning unit can be reduced as compared with the case where the first clamp and the second clamp are separate bodies from the air conditioning casing.

In addition, according to a fifth aspect, the air conditioning case is provided at a partition wall provided in the vehicle body. The partition wall has a partition wall through-hole that separates a vehicle interior space on a side where the air conditioning case is provided from an opposite side space on an opposite side of the vehicle interior space with respect to the partition wall therebetween, and that penetrates through the partition wall. The other end of the pipe is taken out to the opposite side space through the partition wall through hole. The air conditioning unit is provided with: a sheet-like sealing member for closing a gap between the peripheral portion surrounding the partition wall through hole and the pipe, and a sealing member installation portion in which the sealing member is installed and which sandwiches the sealing member with the partition wall. The first pressing portion, the second pressing portion, and the seal setting portion are formed of an integrally molded product.

Thus, the first and second pressing portions and the seal member-mounting portion are integrated. Therefore, the number of components constituting the air conditioning unit can be reduced as compared with the case where the two are separate bodies. In other words, it is not necessary to add a pressing portion by another member.

(feature 1)

An air conditioning unit for a vehicle, for blowing air-conditioned air into a vehicle interior, the air conditioning unit comprising:

an air conditioning case 3012 having an air passage 3012a formed therein;

a heat exchanger 3016 that is disposed inside the air conditioning casing and exchanges heat between a heat medium and air;

a pipe 3018 connected to the heat exchanger and through which the heat medium flows; and

fixing portions 3021, 3022, 3031, 3032 for fixing the pipe to the air-conditioning case,

the fixing part has a first clamp part 3021 and a second clamp part 3022 which clamp the pipe and a first pressing part 3031 and a second pressing part 3032 which clamp and press both the first clamp part and the second clamp part which clamp and press the pipe,

the first clamping portion and the second clamping portion are formed by forming products which are separated from each other,

the first pressing portion and the second pressing portion are formed of an integrally molded product.

(feature 2)

The air conditioning unit according to claim 1, characterized in that,

the pipe is provided with a pipe side fitting part,

the first clamp portion is provided with a clamp-side fitting portion that is fitted to the pipe-side fitting portion,

the pipe-side fitting portion is constituted by one of a recessed portion 3034a and a raised portion 3036a,

the clamp-side fitting portion is formed of the other of the concave portion and the convex portion.

(feature 3)

The air conditioning unit according to claim 2, characterized in that,

the pipe side fitting part is a pipe side first fitting part,

the clamp-side fitting portion is a clamp-side first fitting portion,

the recess is a first recess and the recess is,

the convex portion is a first convex portion,

the pipe is provided with a pipe side second fitting portion disposed opposite to the pipe side first fitting portion,

the first clamp portion is provided with a clamp-side second fitting portion which is disposed opposite to the clamp-side first fitting portion and is fitted to the pipe-side second fitting portion,

the clamp-side first fitting portion and the clamp-side second fitting portion sandwich a portion of the pipe where the pipe-side first fitting portion and the pipe-side second fitting portion are provided,

the pipe side second fitting portion is constituted by one of the second concave portion 3034b and the second convex portion 3036b,

the clamp-side second fitting portion is formed of the other of the second concave portion and the second convex portion, which is different from the one.

(feature 4)

The air conditioning unit according to any of the features 1 to 3,

the wall 3125 of the air-conditioning case has a case penetration hole 3126 penetrating the wall,

the pipe has one end 3018a and the other end 3018b opposite to the one end, the one end including the one end is connected to the heat exchanger in the air-conditioning case, the other end including the other end is taken out to the outside of the air-conditioning case through the case through hole,

the air conditioning case has a first case portion 3122 and a second case portion 3124 located on both sides of the case through hole,

the first housing portion has a portion 3127a of a peripheral portion 3127 surrounding the housing through hole,

the second housing portion has another portion 3127b of the peripheral edge portion,

the first clamping portion extends from the portion of the peripheral edge portion of the first housing portion to an outside of the air-conditioning housing,

the first clamp portion and the first housing portion are formed of an integrally formed product,

the second clamping portion extends from the other part of the peripheral edge portion of the second housing portion to the outside of the air-conditioning housing,

the second clamp portion and the second housing portion are formed of an integrally molded product.

(feature 5)

The air conditioning unit according to any of the features 1 to 4,

the air conditioning casing is provided on a partition wall 3003 provided in the vehicle body,

the partition wall has a partition wall through-hole 3003a that penetrates the partition wall while partitioning a vehicle interior space 3004 on a side where the air conditioning casing is provided from an opposite side space 3005 on an opposite side of the vehicle interior space with respect to the partition wall therebetween,

the other end side of the pipe is taken out to the opposite side space through the partition wall through hole,

the air conditioning unit includes:

a sheet-like seal 3024 that closes a gap between the peripheral edge portion surrounding the partition wall through hole and the pipe,

a seal installation portion 3265 in which the seal is installed and which sandwiches the seal with the partition wall,

the first pressing portion, the second pressing portion, and the seal setting portion are formed of an integrally molded product.

Claims (5)

1. An air conditioning unit that is mounted to a vehicle mounting portion (82) that forms a part of a vehicle interior (80), the vehicle mounting portion being a part of an inner partition wall (85) that partitions an interior of the vehicle interior and an exterior of the vehicle interior, the air conditioning unit being disposed inside the vehicle interior and performing air conditioning inside the vehicle interior, the air conditioning unit being characterized by comprising:

a ventilation path forming part (20) which forms a ventilation path (20a) for flowing the air-conditioning air blown into the vehicle interior;

an intermediate space forming wall (22) that forms an intermediate space (22a) disposed between the ventilation path and the vehicle mounting portion;

an electrical component (32, 36, 38, 142); and

a plurality of unit mounting portions (26) fixed to the vehicle mounting portion,

at least a part of the electric component is disposed in the intermediate space,

the intermediate space forming wall extends in a cylindrical shape from the ventilation path forming portion toward the vehicle mounting portion side, the intermediate space is formed inside the intermediate space forming wall, and the intermediate space forming wall surrounds the intermediate space,

the plurality of unit mounting portions are arranged in a circumferential direction (DRr) of the intermediate space forming wall with a space therebetween, and are integrally fixed to the intermediate space forming wall.

2. The air conditioning unit as set forth in claim 1,

comprises a penetrating member (34, 35, 40),

the ventilation path forming part and the intermediate space forming wall constitute at least a part of an air conditioning casing (12),

the penetrating member penetrates the vehicle mounting portion from the intermediate space and is led out to the outside of the vehicle compartment without passing through a space around the casing other than a range occupied by the air-conditioning casing inside the vehicle compartment (801).

3. The air conditioning unit as set forth in claim 1,

comprises a penetrating member (34, 35, 40),

the vehicle mounting portion has a penetrated partition wall (821),

the pierced partition wall faces the intermediate space and covers a side opposite to the ventilation path side in the intermediate space,

the penetrating member penetrates the penetrated partition wall from the intermediate space and is led out to the outside of the vehicle compartment.

4. Air conditioning unit according to any of claims 1 to 3,

the ventilation path forming part is composed of a first forming part (201) and a second forming part (202) which is located between the intermediate space forming wall and the first forming part in the axial direction (DRa) of the intermediate space forming wall,

the intermediate space forming wall is formed integrally with the second forming portion.

5. Air conditioning unit according to any of claims 1 to 3,

the intermediate space forming wall and the ventilation path forming portion are integrally formed.

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