JP3997499B2 - Cooling unit regenerator fixing structure - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a cooling device that cools air passing through a ventilation path using a regenerator, and more particularly to a fixing structure of the regenerator.
[0002]
[Prior art]
On the rear side of the driver's seat of a large vehicle such as a long-distance truck, a passenger often takes a nap in a nap bed or the like, but in a vehicle air conditioner that uses an engine as a power source, after the engine is stopped, There is a problem that the vehicle air conditioner cannot be used.
[0003]
On the other hand, a cooling device using a regenerator cools the regenerator by the cooling cycle of the vehicle air conditioner during engine operation, freezes the regenerator material stored in the regenerator, and uses this regenerator. By cooling the nap bed directly or blowing the air cooled by the regenerator onto the nap bed, it is possible to obtain comfortable cooling even after the engine is stopped.
[0004]
As a cooling device using this regenerator, there is one shown in Japanese Patent Registration No. 2536298. This cooling device takes in air into the housing from an air intake hole using a blower, cools this air with a regenerator of cooling means housed in the housing, and then blows it out from an air outlet.
[0005]
Further, as shown in FIG. 7, when the cooling device 100 using the above-described regenerator material is used for a substantially elongated box-shaped nap bed, a pair of header pipes 102 and 102 and this header are used as cooling means. A relatively flat plate-shaped heat exchanger 101 composed of a tube 103 communicating between the pipes 102 and 102 is disposed in the air conditioning duct 104 horizontally with the ventilation direction, and the regenerator 105 is connected to the tube of the heat exchanger 101. The regenerator 105 is fixed to the upper surface and the lower surface of the regenerator 103. For example, a fixing means such as a fixing hole is provided in the case of the regenerator 105 and the tube 103 is screwed directly. It is done. Further, the heat exchanger 101 itself is usually fixed to the case by a bracket.
[0006]
[Problems to be solved by the invention]
However, in the case where the regenerator is fixed to the upper and lower surfaces of the tube of the heat exchanger using fixing means such as screws, the structure of the tube becomes complicated because the tube needs to be structured according to the fixing means. If the tube has the same shape as the conventional one, there is a problem that the structure of the regenerator has to be a structure corresponding to the fixing means.
[0007]
Furthermore, when the regenerator is directly fixed to the upper or lower surface of the tube of the heat exchanger using a fixing means such as a screw, it is necessary to make a hole in the tube. The tube may be damaged by the pressing force of the regenerator that expands due to the pressure.
[0008]
Therefore, the present invention provides a fixing structure for a regenerator that can fix the regenerator to the upper and lower parts of the heat exchanger with a simple structure and can absorb the expansion of the case of the regenerator. It is.
[0009]
[Means for Solving the Problems]
Thus, the present invention provides a case, a ventilation path defined by the case, a blower disposed in the ventilation path, a heat exchanger disposed on the ventilation path, an upper portion of the heat exchanger, and In a cooling device comprising at least a pair of regenerators arranged in the lower part, a heat exchanger fixing part for fixing the heat exchanger, and extending integrally from the heat exchanger fixing part, each of the regenerators is connected to the heat exchanger At least a regenerator mounting portion that contacts and holds the exchanger, and a support portion that extends integrally from the regenerator mounting portion and holds the heat exchanger and the regenerator in a predetermined position of the ventilation path. A lower support means comprising a pair of lower brackets, a heat exchanger fixing portion for fixing the heat exchanger, and extending integrally from the heat exchanger fixing portion, each of the regenerators being applied to the heat exchanger. The regenerator attachment part to be held in contact with the regenerator attachment part The upper support means which consists of at least one pair of upper brackets which are extended integrally and are comprised by the suspension part which suspends and fixes the said heat exchanger and the said cool storage to the said case (Claim 1). ).
[0010]
According to the present invention, the regenerator disposed at the lower portion of the heat exchanger is mounted on the cool storage material mounting portion of the pair of lower brackets serving as the lower support means, and is fixed to the heat exchanger fixing portion of the lower bracket. It is held in contact with the heat exchanger and held at a predetermined position in the ventilation path by the support portion of the lower bracket. Further, the regenerator disposed on the upper part of the heat exchanger is mounted on the regenerator mounting part of the pair of upper brackets serving as upper support means, and is fixed to the heat exchanger fixing part of the upper bracket. And is suspended and held at a predetermined position in the ventilation path by the suspended portion of the upper bracket. As a result, the upper and lower regenerators are sandwiched between the heat exchangers by the lower holding means and the upper holding means, so there is no need to provide fixing means for fixing to the heat exchanger in the regenerator. There is no need to prepare a regenerator. In addition, as a heat exchanger, the comparatively flat thing comprised by a pair of header pipe and the tube which connects this pair of header pipe is mentioned, and a cool storage is contact | abutted on the upper surface and lower surface of this tube It is what is done.
[0011]
The lower bracket and the upper bracket are preferably formed of an elastic member. Moreover, the support part of the said lower bracket and the suspension part of the said upper bracket may have an elastic structure (Claim 3). As a result, the expansion of the regenerator can be absorbed by the elastic structure of the support part of the upper and lower brackets or the lower bracket and the suspension part of the upper bracket, so the pressing force applied to the heat exchanger due to the expansion of the regenerator is reduced. Can prevent the heat exchanger from being damaged.
[0012]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments of the present invention will be described below with reference to the drawings.
[0013]
The cooling device 1 according to the embodiment of the present invention shown in FIG. 1 is used, for example, for a nap bed provided behind a driver's seat of a large vehicle such as a long-distance truck. The cooling device 1 has an air conditioning duct 1c including a bed part 1a serving as a nap bed and a blowing part 1b standing on one side of the bed part 1a. The air conditioning duct 1c includes a bed. The ventilation path 2 communicated over the part 1a and the blowing part 1b is formed. One of the ventilation paths 2 communicates with the air intake 3 formed on the side surface of the bed portion 1a opposite to the blowing portion 1b, and the other is formed on the side surface of the blowing portion 1b on the bed portion 1a side. Communicating with the air outlet 4.
[0014]
And in the ventilation path 2, the cool storage unit 5 is distribute | arranged to the part corresponded to the bed part 1a, and the air blower 6 is distribute | arranged to the lower part of the said blowing part 1b. As the blower 6, for example, a sirocco fan, a cross flow fan, or the like is used. The blower 6 sucks air from the air intake port 3 and blows air from the air blower port 4 through the ventilation path 2.
[0015]
In this embodiment, the cold storage unit 5 includes a pair of header pipes 8, 8 and a heat exchanger 7 including a tube 9 communicating between the pair of header pipes 8, 8, and an upper surface and a lower surface of the tube 9. For example, two regenerators 10 are arranged along the ventilation direction, and are arranged horizontally in the ventilation path 2 along the ventilation path 2. In this embodiment, the heat exchanger 7 is connected to a cooling cycle of an air conditioner of a vehicle, and a part of the refrigerant that flows to the evaporator of the cooling cycle while the vehicle is running is supplied to the tube 9. The regenerator 10 is cooled when it passes through. Thus, when the vehicle is traveling, the regenerator 10 is cooled by the refrigerant flowing through the tube 9 of the heat exchanger 7, and when the vehicle engine is stopped, the regenerator 10 is cooled when the vehicle is traveling. It is possible to cool the air.
[0016]
The regenerator 10 is composed of a case having a substantially rectangular parallelepiped shape and a regenerator material housed in the case, and the regenerator material is composed of water and an inorganic salt such as sodium salt, water and glycol. And water, inorganic salts and organic compounds, etc., and when cooled, it changes from a liquid layer to a solid layer (solidifies) to store cold. Is.
[0017]
The regenerators 10 are respectively disposed opposite to the upper and lower surfaces of the tube 9 of the heat exchanger 7 (two in this embodiment). As shown in FIG. It is held by first and second lower brackets 11 and 13 which are side support means and first and second upper brackets 12 and 14 which are upper support means.
[0018]
The first lower bracket 11 is provided at both ends of the cool storage unit 5 in the ventilation direction, and includes a heat exchanger fixing portion 15 that holds and fixes the header pipe 8 of the heat exchanger 7, and the heat exchanger fixing portion. 15, a regenerator mounting portion 16 that is integrally extended from 15 and holds the regenerator 10 in contact with the lower surface of the tube 9, and is integrally extended from the regenerator mounting portion 16, and the heat exchanger 7 and the regenerator 10. It is comprised with the support part 17 for supporting on the ventilation path 2. As shown in FIG.
[0019]
The first upper bracket 12 forms a pair with the first lower bracket 11 and is provided at both ends of the cool storage unit 5 in the ventilation direction, together with the heat exchanger fixing portion 15 of the first lower bracket 11. A heat exchanger fixing portion 15 for holding and fixing the header pipe 8, a regenerator mounting portion 16 extending integrally from the heat exchanger fixing portion 15 and holding the regenerator 10 in contact with the upper surface of the tube 9, The regenerator mounting part 16 is integrally extended, and is composed of a suspending part 18 that suspends and fixes the heat exchanger 7 and the regenerator 10 to the bed part 1a.
[0020]
The first lower bracket 11 and the first upper bracket 12 hold the header pipe 8 of the heat exchanger 7 from both sides by the respective heat exchanger fixing portions 15, and from the respective heat exchanger fixing portions 15. The fixing allowances 15a extending to the side of the header pipe 8 are also fixed to each other by tightening with a fixing tool 20 such as a bolt. Further, the first upper bracket 11 has a locking piece 18a at the tip of the hanging portion 18, and this locking piece 18a is engaged with a locking hole 21 formed on the upper side of the bed portion 1a. Thus, it is suspended and fixed to the bed part 1a. The hanging portion 18 is also fixed by a fixing tool 20 such as a bolt.
[0021]
On the other hand, the second lower bracket 13 is provided to hold both the regenerators 10 and 10 disposed on the lower surface of the tube 9 at a substantially central portion in the ventilation direction of the regenerator unit 5. A heat exchanger fixing part 19 having a flat plate shape extending along the side, regenerator mounting parts 16 and 16 extending integrally from both sides in the ventilation direction, and extending integrally from each regenerator mounting part 16 It is comprised by the support part 17 made.
[0022]
The second upper bracket 14 is paired with the second lower bracket 13, and holds both the regenerators 10 and 10 disposed on the upper surface of the tube 9 at a substantially central portion in the ventilation direction of the regenerator unit 5. Provided for. The heat exchanger fixing portion 19 has a flat plate shape along the tube 9, and the regenerator mounting portions 16, 16 that are integrally extended from both sides in the ventilation direction, and the suspension portion 18 are also provided for the respective regenerators. It is comprised by the hanging part 18 extended integrally from the instrument mounting part 16. As shown in FIG.
[0023]
The second lower bracket 13 and the second upper bracket 14 hold the tube 9 of the heat exchanger 7 from both sides by both heat exchanger fixing portions 21 and are formed at appropriate positions of the tube 9. They are fixed to each other by a fixing tool 20 such as a screw through a hole (not shown). The second upper bracket 14 has a locking piece 18a at the tip of the suspending portion 18, and this locking piece 18a is engaged with a locking hole 21 formed on the upper side of the bed portion 1a. Thus, it is suspended from the bed part 1a.
[0024]
The first and second lower brackets 11 and 13 and the first and second upper brackets 12 and 14 are entirely made of elastic members (for example, elastic members such as leaf springs and synthetic resins). ) Is elastic in the vertical direction with respect to the ventilation direction of the ventilation path 2.
[0025]
According to the above configuration, since it is not necessary to provide a hole or the like for fixing to the heat exchanger 7 in the regenerator 10, the regenerator 10 can be remodeled to be fixed to the heat exchanger 7, or a dedicated regenerator 10 need not be manufactured.
[0026]
Further, when the regenerator 10 expands as the regenerator material solidifies, the first and second lower brackets 11 and 13 and the first and second upper brackets 12 according to the pressing force from the regenerator 10. , 14 bend as shown in FIG. 3, for example, so that the pressing force due to the expansion of the regenerator 10 can be absorbed.
[0027]
Next, an embodiment different from the regenerator fixing structure of the cooling device shown in FIGS. 1 to 3 will be described with reference to FIGS. 4, 5, and 6. In addition, about the same location of embodiment mentioned above or the location which show | plays the same effect, the same code | symbol is turned down and the description is abbreviate | omitted.
[0028]
In the regenerator fixing structure of the cooling device shown in FIG. 4, the support portions 17 of the first and second lower brackets 11 and 13 are formed in a substantially S shape, and the first and second upper brackets 12 and 14 are formed. Similarly, the hanging part 18 is formed in a substantially S-shape. Accordingly, the first and second lower brackets 11 and 13 and the first and second upper brackets 12 and 14 have elastic shapes that easily absorb the expansion of the regenerator 10. In particular, it may not be formed by an elastic member.
[0029]
Further, in the regenerator fixing structure of the cooling device shown in FIG. 5, an elastic member 22 such as a synthetic resin is provided between the support portion 17 of the first and second lower brackets 11, 13 and the bottom surface of the ventilation path 4. The first and second elastic members 22 such as synthetic resin are sandwiched between the suspended portions 18 of the first and second upper brackets 12 and 14 and the inner upper surface of the bed portion 1a. The lower brackets 11 and 13 and the first and second upper brackets 12 and 14 are provided with an elastic force in the expansion direction of the regenerator 10. In this embodiment, the suspending portions 18 of the first and second upper brackets 12 and 14 are fixed to the inner surface of the bed portion 1a by a fixing tool 20 such as a bolt.
[0030]
Then, the regenerator fixing structure of the cooling device shown in FIG. 6 forms a cushion part 23 bent in a V shape on the support part 17 of the first and second lower brackets 11 and 13, and the first and second A cushion part 23 bent in a V shape is formed on the hanging part 18 of the second upper brackets 12 and 14. Accordingly, the first and second lower brackets 11 and 13 and the first and second upper brackets 12 and 14 have elastic shapes that easily absorb the expansion of the regenerator 10. In particular, it may not be formed by an elastic member.
[0031]
As described above, according to the regenerator fixing structure of the cooling device shown in FIGS. 4 to 6, the first and second lower brackets 11 and 13 and the first and second upper brackets 12 and 14 are elastic. Even if it is not formed by a member, when the regenerator 10 expands with the solidification of the regenerator material, the support portions 17 of the first and second lower brackets 11 and 13 according to the pressure from the regenerator 10 and The S-shaped portion formed on the hanging part 18 of the first and second upper brackets 12 and 14, the elastic member 22 and the cushion part 23 can absorb the pressure from the regenerator 10. is there. In these embodiments, the first and second lower brackets 11 and 13 and the first and second upper brackets 12 and 14 may be formed of an elastic member. 14 elasticity can be improved.
[0032]
【The invention's effect】
As described above, according to the present invention, the regenerator is merely held in contact with the tube of the heat exchanger, and does not particularly need a fixing means for fixing to the heat exchanger. Since it is not necessary to manufacture a dedicated regenerator or fix the regenerator for fixing to the heat exchanger, the manufacturing cost can be reduced.
[0033]
In addition, since the pressing force generated by the expansion of the regenerator can be absorbed by the upper and lower brackets being bent and by the structure that can absorb the pressing force, the heat exchanger tube can be damaged by the expansion of the regenerator. Can be prevented.
[Brief description of the drawings]
FIG. 1 is a cross-sectional view showing a schematic configuration of a cooling device using a structure for fixing a regenerator according to the present invention.
[Fig. 2] Fig. 2 uses the first and second upper brackets and the first and second lower brackets in a state where the regenerator is in contact with the cooling heat exchanger inside the bed portion of the cooling device same as above. It is sectional drawing which showed the structure which fixed the said cool storage device.
FIG. 3 shows a state in which the pressure generated by the regenerator expanding due to the solidification of the regenerator material is absorbed by bending the first and second lower brackets and the first and second upper brackets. It is sectional drawing.
FIG. 4 is an explanatory view showing an embodiment in which the supporting portions of the first and second lower brackets and the hanging portions of the first and second upper brackets have an elastic structure.
FIG. 5 is an embodiment of the first and second lower bracket support portions and the first and second upper bracket suspension portions having an elastic structure different from the elastic structure shown in FIG. 4; It is explanatory drawing shown.
6 is a view showing a support portion for the first and second lower brackets and a suspension portion for the first and second upper brackets, each having an elastic structure different from the elastic structure shown in FIGS. 4 and 5. FIG. It is explanatory drawing which shows this embodiment.
FIG. 7 is an explanatory view showing a state in which a regenerator is directly fixed to a heat exchanger of a cooling device used for a nap bed by a fixing means such as a screw, for example.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Cooling device 1a Bed part 1b Blowing part 2 Ventilation path 5 Cool storage unit 7 Heat exchanger 9 Tube 10 Cooler 11 First lower bracket 12 First upper bracket 13 Second lower bracket 14 Second upper bracket 15 Heat Exchanger fixing part 16 Regenerator mounting part 17 Support part 18 Hanging part 19 Heat exchanger fixing part 22 Elastic member 23 Cushion part

Claims (3)

At least a pair of a case, a ventilation path defined by the case, a blower disposed in the ventilation path, a heat exchanger disposed on the ventilation path, and an upper portion and a lower portion of the heat exchanger are disposed. In a cooling device consisting of a regenerator,
A heat exchanger fixing portion for fixing the heat exchanger, a regenerator mounting portion integrally extending from the heat exchanger fixing portion and holding each of the regenerators in contact with the heat exchanger, and the regenerator Lower support means comprising at least a pair of lower brackets, which are integrally extended from a mounting portion and configured by a support portion which holds the heat exchanger and the regenerator in a predetermined position of the ventilation path;
A heat exchanger fixing portion for fixing the heat exchanger, a regenerator mounting portion integrally extending from the heat exchanger fixing portion and holding each of the regenerators in contact with the heat exchanger, and the regenerator And an upper support means comprising at least a pair of upper brackets that are integrally extended from a mounting portion and configured by a suspension portion that suspends and fixes the heat exchanger and the regenerator to the case. The regenerator fixing structure of the cooling device to be used. The regenerator fixing structure for a cooling device according to claim 1, wherein the lower bracket and the upper bracket are formed of an elastic member. The regenerator fixing structure for a cooling device according to claim 1 or 2, wherein the support portion of the lower bracket and the suspension portion of the upper bracket have an elastic structure.

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