CN102019836A

CN102019836A - Mounting structure for sensor attached to heat exchanger

Info

Publication number: CN102019836A
Application number: CN2010102886199A
Authority: CN
Inventors: 贝山浩一
Original assignee: Keihin Dock Co Ltd
Current assignee: Keihin Corp; Keihin Dock Co Ltd
Priority date: 2009-09-17
Filing date: 2010-09-15
Publication date: 2011-04-20
Also published as: US20110061853A1; JP2011064388A

Abstract

A mounting structure is provided, for a sensor which is attached to a heat exchanger. An evaporator (14) that is utilized in a vehicular air conditioning apparatus (10) is equipped with a detection sensor (46), which is capable of detecting the surface temperature of the evaporator (14). In the detection sensor (46), a main body portion (48) thereof on which the detector (56) is provided is inserted between fins (38) of the evaporator (14). After a cable (50) is made to extend to a cable guide (24) disposed on a side portion of a casing (12), the cable (50) is retained by the cable guide (24).

Description

Be attached to the sensor mounting structure of heat exchanger

Technical field

The present invention relates to a kind of sensor mounting structure, this sensor for example is attached to the heat exchanger that is arranged in the air conditioner for vehicles, and the purpose that sensor is set is to survey the temperature through the air of heat exchanger.

Background technology

Up to now, in the air conditioner for vehicles of in such as vehicles such as automobiles, being installed, air is inhaled in the housing by fan, after being used as air that air that the evaporator (heat exchanger) of cooling mechanism cooled off and the heater core that is used as heating arrangement heated and in housing, mixing with predetermined mixture ratio, the optionally ejection of the fumarole from be arranged on the compartment of these air, temperature and the humidity in the scalable compartment thus.

As shown in Figure 6, on the evaporator of in Japanese laid-open patent communique NO.2006-017406, having announced 1, on forming a side through the downstream of the air of evaporator 1, it is attached with the temperature sensor 2 of the surface temperature that is used to survey evaporator 1.In addition, according to the temperature that temperature sensor 2 detects, the air regulation in the compartment of vehicle is controlled.

Temperature sensor 2 is formed by the housing 4 with Sensor section 3 and with the side bonded assembly cable 5 of housing 4.By insert Sensor section 3 between the fin 6 of forming evaporator 1, housing 4 is attached on the side of evaporator 1 securely.In addition, cable 5 is electrically connected with respect to being arranged on controller in the vehicle etc., and the path of cable 5 is attached to a plurality of clamping element 7a, the 7b restriction of the side of evaporator 1 thereupon, and cable 5 is directed into desired locations thus.

Yet, when using above-mentioned prior art mounting temperature sensor 2, a plurality of

clamping element

7a, 7b must be installed on the evaporator 1 in advance, so that arrange its cable 5 according to expected path, pretty troublesome like this and increased the part number, increased the number of steps of assembling this equipment simultaneously.In addition, because clamping

element

7a, 7b be by inserting in the fin 6 and attached, this for example can cause fin 6 to damage, and causes the worry that people's heat exchanging device performance will variation.

Summary of the invention

The overall purpose of the present invention is to provide a kind of sensor mounting structure that is attached to heat exchanger, and when sensor was installed to A/C, this mounting structure can reduce part number and installation step number.

The invention is characterized in a kind of sensor mounting structure, this sensor is attached to the heat exchanger in the air conditioner for vehicles that is installed in the vehicle, heat exchanger cooling or heating are fed to the interior air of passage of housing, be blown in the compartment with air, and sensor heat exchanging device is carried out the temperature detection predetermined temperature.

Described sensor comprises with respect to attached being used for of described heat exchanger carries out the detector of temperature detection and the cable that is connected with described detector to described heat exchanger, wherein, be formed with guiding piece in described housing, described guiding piece limits the path of described cable and can keep this cable.

According to the present invention, in the heat exchanger that uses in the air conditioner for vehicles of installing in vehicle, sensor installation is surveyed the temperature of this heat exchanger.The guiding piece that is formed in the housing of this air conditioner for vehicles with the detector bonded assembly cable of sensor is limited to expected path, and is kept by this guiding piece.

Therefore, limit the troublesome operations of cable path no longer needing in existing mounting structure with respect to each clamping element in the attached a plurality of clamping elements of heat exchanger.During sensor installation, the installation step number can reduce thereupon, reduces the part number simultaneously and reduces the relevant cost of mounting structure.

In conjunction with the accompanying drawing that the preferred embodiment for the present invention is shown in the illustrative embodiment mode, will be more readily apparent from above-mentioned and other purposes of the present invention, feature and advantage from following description.

Description of drawings

Fig. 1 shows the exterior perspective view of the air conditioner for vehicles with heat exchanger, is applied to this air conditioner for vehicles according to the sensor of embodiment of the present invention with mounting structure;

Fig. 2 shows near the amplification stereogram the opening of opening housing in first minute in the air conditioner for vehicles of Fig. 1;

Fig. 3 is near the amplification front elevation the cable guide spare shown in Fig. 2;

Fig. 4 is the cross sectional drawing along the line IV-IV among Fig. 2;

Fig. 5 A shows the amplification view that acquisition sensor is installed in the state on the evaporator, and Fig. 5 B is the enlarged side view of Fig. 5 A; And

Fig. 6 is the front elevation according to the heat exchanger that is attached with sensor of prior art.

The specific embodiment

In Fig. 1, Reference numeral 10 expression has the air conditioner for vehicles of heat exchanger in it, is installed on this heat exchanger according to the sensor of embodiment of the present invention.

As Fig. 1 and shown in Figure 2, air conditioner for vehicles 10 comprises the housing 12 be made up of corresponding wind channels, be arranged on the evaporator 14 (heat exchanger) that housing 12 inside are used for coolant air, the pipeline 18 that is used for heater for heating air core (not shown) and is installed in opening 16 places of housing 12, and pipeline 18 guiding flow into the inside of housing 12 from the fan air supplied.In addition, the inside of housing 12 is provided with air mix door (not shown) and a plurality of fumarole door, the air of introducing housing 12 carries out interchange of heat by evaporator 14 and heater core via air mix door, and air mix door produces mixing air by compare the hot air that mixes cold air and mixed up temperature with predetermined mix, and a plurality of fumarole doors are fed to mixing air the compartment from each fumarole of opening selectively.

Housing 12 constitutes by roughly opening housing 20 and opened housing 22 in second minute in symmetrical first minute.The sidepiece of opening housing (housing) 20 at first minute has opening 16, and pipeline 18 is installed on the opening 16, and simultaneously, evaporator 14 is received into its inside via opening 16 from the outside of housing 12.

,, opened at first minute and to be provided with cable guide spare (guiding piece) 24 in the housing 20 to shown in Figure 4 as Fig. 2, be used to guide the cable 50 of acquisition sensor (sensor) 46 referring to the below of opening 16 1 sides.Cable guide spare 24 is for example formed by the resin material similar to the material of housing 12 self, and cable guide spare 24 is arranged on the end face that pipeline 18 is installed of opening 16.In addition, cable guide spare 24 forms along stretching out towards the general horizontal direction of the central orientation of opening 16.

In addition, extremely shown in Figure 4 as Fig. 2, cable guide spare 24 is made of plane base portion 26 and a pair of first, second guiding wall (wall portion) 28,30, plane base portion 26 is given prominence to the engaged at end of opening 16 and to a side of opening 16, and first, second guiding wall (wall portion) 28,30 is outstanding to the direction away from opening 16 with respect to base portion 26.In addition, first guiding wall 28 and second guiding wall 30 are vertically upright with respect to base portion 26, and with the perpendicular vertical direction of the bearing of trend of base portion 26 on extend.

In other words, first guiding wall 28 and second guiding wall 30 were opened the outside (side of opening 16) of housing 20 towards first minute upright, and first guiding wall 28 be arranged in parallel on base portion 26 with second guiding wall 30, and the while is spaced apart a predetermined distance.More particularly, cable guide spare 24 forms and has the U-shaped cross section that is formed by base portion 26 and a pair of first guiding wall 28 and second guiding wall 30.In addition, the height of first guiding wall 28 that begins from the inner wall surface of base portion 26 and second guiding wall 30 is arranged to be substantially equal to or be slightly larger than the diameter of cable 50.

First guiding wall 28 is arranged to than second guiding wall 30 more towards the central side of opening 16.Comprise hook spare described later (holding element) 32 on first guiding wall 28, hook spare 32 can keep the cable 50 of acquisition sensor 46.

Hook spare 32 is arranged on the end away from the position of base portion 26 of being positioned at of first guiding wall 28.Hook spare 32 is side-prominent to second guiding wall 30 from this end, forms along the longitudinal extension of first guiding wall 28.In addition, when cable 50 is kept by cable guide spare 24, hook spare 32 cable 50 under the state of the internal face of the base portion 26 and first guiding wall 28 against and keep the outer peripheral face of cable 50.

In other words, cable 50 is placed to roughly half state that is kept by base portion 26, first guiding wall 28 and hook spare 32 of outer peripheral face.

In addition, when cable 50 was kept by hook spare 32, cable 50 was retained as and can moves along the longitudinal direction of cable 50, but wherein cable 50 is being restricted away from moving on the direction of cable guide spare 24 (be cable 50 diametrically move).

On the other hand, cable guide spare 24 has gentle elasticity around it with respect to the fulcrum that housing 12 engages part.More particularly, cable guide spare 24 forms the thickness of slab (gauge) that its base portion 26 that engages with housing 12 has the flexibility can brought, and makes cable guide spare 24 to be inclined to from the horizontal by predetermined angular with respect to housing 12.

In addition, opened in the housing 20 at first minute, cable hole 34 (referring to Fig. 1) was opened in the upwards position of cable guide spare 24, and the cable 50 of the acquisition sensor of describing later 46 was opened the inside of housing 20 through the outside through cable hole 34 from first minute.

Shown in Fig. 1, Fig. 5 A and Fig. 5 B, evaporator 14 comprises a plurality of pipes 36 of flowing through for cooling system conditioner, forms the fin 38 that is bent into wavy serpentine pattern and is arranged on the opposite end of pipe 36 and collect a pair of casing 40a, the 40b of cooling system conditioner between a plurality of pipes 36.In addition, on casing 40a, introduce cooling system conditioner from the outside by supply pipe 42 therein, cooling system conditioner is by managing 36 after evaporator 14 inner loop are carried out interchange of heat whereby, from exporting to the outside with gargle pipe 44 that casing 40a links to each other in addition.

More particularly, on evaporator 14, a plurality of pipes 36 and fin 38 to be equidistantly being spaced from each other and being arranged in parallel on Width, and be arranged in the casing 40a of the opposite end of

pipe

36,40b and fin 38 form box-like shape, are arranged in top and bottom (referring to Fig. 1) of evaporator 14.

In addition, acquisition sensor 46 is arranged on the side of evaporator 14, so that survey the surface temperature of evaporator 14.The adaptor union 52 of the other end that acquisition sensor 46 comprises the base portion 48 that is installed on the evaporator 14, the cable 50 that is connected to base portion 48 and is connected to cable 50.Acquisition sensor 46 is arranged on the side of evaporator 14, and when air process evaporator 14, this side forms the downstream of evaporator and carries out interchange of heat thereon.

Detector 56 (referring to Fig. 5 A and Fig. 5 B) is outstanding from its lower surface on base portion 48.Detector 56 is for example formed by thermally dependent resistor.In addition, be connected with a side of base portion 48 with the cable 50 that detector 56 is electrically connected in the inside of base portion 48.

In addition, the detector with outstanding cylindrical shape 56 of acquisition sensor 46 is supported on the side of evaporator 14 by being inserted between the fin 38 on the evaporator 14.Base portion 48 comprises that detector 56 is attached with respect to evaporator 14.The base portion 48 of acquisition sensor 46 is installed as and is generally parallel to

casing

40a, 40b and perpendicular to pipe 36 bearing of trend.

On the other hand, cable 50 forms has predetermined length, and the one end is connected with base portion 48, and is connected to the other end of cable 50 with the splicing ear bonded assembly adaptor union 52 of unshowned controller.In addition, be installed at acquisition sensor 46 under the situation on the side of evaporator 14, cable 50 along and evaporator 14 straight line (promptly along general horizontal direction) side by side extend, and insertion pass be formed on the cable guide spare of opening in the housing 20 in first minute 24 after orientation upwards.

In addition, after upwards being guided by cable guide spare 24, cable 50 separates the cable hole 34 that forms in the housing 20 through first and inserts through the outside.At this moment, cable 50 is by being held and being clamped on the opening 16 of opening housing 20 in first minute and being installed between the pipeline 18 on the opening 16 and fix in position.

Have the air conditioner for vehicles 10 basic as above-mentioned structures of installation according to the heat exchanger of the sensor of embodiment of the present invention.Next, the assembly method of acquisition sensor 46 and evaporator 14 is simply described.

At first, the opening 16 of opening housing 20 at first minute is under the unlimited state, when being arranged in evaporator 14 in the housing 12, acquisition sensor 46 is installed on the side in its downstream of formation of evaporator 14.More particularly, acquisition sensor 46 is moved to the zone of the expectation searching surface temperature on the evaporator 14, and its detector 56 is inserted between the fin 38 of evaporator 14 and at this fix in position.

Then, from opening 16, evaporator 14 inserted and is contained in together with acquisition sensor 46 opened the inside of housing 20 in first minute, and the cable 50 of acquisition sensor 46 is extended along a face side of evaporator 14, thus with casing 40a, the 40b almost parallel of evaporator 14.In addition, after cable 50 extends to the cable guide spare of opening in the housing 20 in first minute 24, cable 50 is inserted opened the housing 20 exterior outsides towards first minute through cable guide spare 24.And, evaporator 14 is fixed on by first minute opens housing 20 and opened the housing 12 in-to-in pre-positions that housing 22 is formed in second minute.

At this moment, cable 50 is inserted into against first guiding wall 28 and the base portion 26 that constitute cable guide spare 24, and further is inserted between the hook spare 32 and base portion 26 of cable guide spare 24.Therefore, by base portion 26, first guiding wall 28 and hook spare 32, cable 50 is by reliable and be firmly held in the cable guide spare 24.

In addition, change by cable guide spare 24 in the path of cable 50 and with the right angle upwards after the bending, cable 50 extends upward and opened the cable hole 34 that forms the housing 20 from first minute and pulled into the outside.

At last, pipeline 18 is installed on the opening 16 of opening housing 20 in first minute, and by it being assembled to the part chucking that makes cable 50 in the opening 16 and being fixed between opening 16 and the pipeline 18.At this moment, in by 24 guiding of cable guide spare, towards going out cable 50 with adaptor union 52 bonded assembly other end laybacks.Be applied with on the cable 50 under the tension of a certain amount of tension force, cable 50 is by pipeline 18 fix in position.So cable 50 deflection etc. can not take place, thereby obtain appropriate state.

Then, will for example be connected to the splicing ear that is installed in the controller in the vehicle with cable 50 bonded assembly adaptor unions 52.Therefore, the surface temperature of the evaporator 14 that acquisition sensor 46 is detected by cable 50 and adaptor union 52 outputs to controller as detectable signal.

In aforesaid way, by the present invention, acquisition sensor is installed with respect to the evaporator 14 that uses in the air conditioner for vehicles 10, makes to be pre-formed cable guide spare 24 near the opening of opening housing 20 in first minute 16 that constitutes air conditioner for vehicles 10 when surveying the surface temperature of evaporator 14.Therefore, when being installed in acquisition sensor 46 on the evaporator 14, cable 50 is suitably guided by cable guide spare 24, and can guide the outside of housing 12 along predefined paths into.Therefore, the path that does not need the necessary a plurality of clamping elements of mounting structure of prior art to limit the cable 50 of acquisition sensor 46.The installation step number can reduce thereupon, reduces the part number of acquisition sensor 46 simultaneously and reduces its relevant cost.

In addition, even applying under the situation of tensile force to the cable 50 that keeps by cable guide spare 24 by the connection location of change detection sensor 46 or at pulling cable 50 during the assembly manipulation, because cable guide spare 24 engages with flexible way with respect to the end face of the opening 16 of opening housing 20 in first minute, therefore this tensile force can suitably be absorbed, thereby can avoid acquisition sensor 46 shift position undesirably.In addition, can eliminate at the faulty operation that applies detector 56 grades that tensile force worried under the situation of detector 56 via cable 50.

In addition, cable guide spare 24 comprises a pair of first guiding wall 28 and second guiding wall 30, and because cable 50 remains between first guiding wall 28 and second guiding wall 30, thereby cable 50 is suitably fixing to first guiding wall 28 and second guiding wall 30 by this, can prevent that cable 50 from separating with cable guide spare 24.

In addition, owing to be provided with hook spare 32 on the first above-mentioned guiding wall 28, under the state of the internal face of the base portion 26 and first guiding wall 28, hook spare 32 can keep cable 50 at cable 50, therefore, cable 50 can be kept reliably by the cable guide spare 24 that comprises first guiding wall 28.In addition, because hook spare 32 keeps cables 50 that it can be along the longitudinal movement, even because the installation site variation of acquisition sensor 46 etc. make under the situation that cable 50 moves along the longitudinal, cable 50 also can suitably move freely under by the state of hook spare 32 maintenances.

More particularly, the hook spare 32 that is arranged on first guiding wall 28 allows cable 50 to be along the longitudinal movement; Yet on the contrary, therefore hook spare 32 restriction cables 50 move away from the direction (that is, along cable 50 radially) of cable guide spare 24 along possibility.

In addition, owing to needn't employed a plurality of clamping elements in the sensor fixing structure of prior aries be installed with respect to the fin 38 of evaporator 14, the problem that the fin 38 that takes place in the time of can avoiding installing this clamping element damages.

In addition, because the cable 50 of acquisition sensor 46 is kept securely by cable guide spare 24, therefore cable 50 can not bend near the side of evaporator 14, can avoid cable 50 to contact with the air mix door (not shown) like this, if cable 50 bendings just have this worry.

The sensor that is attached to heat exchanger according to the present invention is not limited to above-mentioned embodiment with mounting structure.Under the prerequisite that does not deviate from the scope of the invention set forth as appended claim and essence, certainly take various changes and modification.

Claims

1. a sensor (46) is used mounting structure, this sensor is attached to the heat exchanger (14) in the air conditioner for vehicles (10) that is installed in the vehicle, described heat exchanger (14) cooling or heating are supplied to the air of the passage of housing (12), be blown in the compartment with air predetermined temperature, and described sensor (46) is carried out temperature to described heat exchanger (14) and is surveyed

Described sensor (46) comprises with respect to attached being used for of described heat exchanger (14) carries out the detector (56) of temperature detection and the cable (50) that is connected with described detector (56) to described heat exchanger (14), wherein in described housing (12), be formed with guiding piece (24), described guiding piece (24) limits the path of described cable (50), and can keep described cable (50).

2. mounting structure according to claim 1, described guiding piece (24) further comprises:

Join the base portion (26) of described housing (12) to; And

With respect to the upright wall portion (28,30) of described base portion (26);

Wherein, described wall portion (28) is provided with holding element (32), and described holding element (32) can keep described cable (50) with described base portion (26) and described wall portion (28).

3. mounting structure according to claim 1, wherein, described guiding piece (24) is with respect to described housing (12) flexible setting.

4. mounting structure according to claim 1, wherein, described guiding piece (24) is arranged on a side of described heat exchanger (14), and forms the vertical direction that is roughly parallel to described housing (12).

5. mounting structure according to claim 1, wherein, described guiding piece (24) is arranged in the opening (16), and this opening opens wide at the sidepiece of described housing (12), is used for described heat exchanger (14) is contained in the inside of described housing (12).

6. mounting structure according to claim 2, wherein, described holding element (32) limits moving radially of this cable (50) simultaneously so that described cable (50) can keep this cable (50) along the axially movable mode of this cable (50).

7. mounting structure according to claim 2, wherein, described wall portion (28,30) comprises a pair of wall portion (28 that is provided with respect to described base portion (26), 30), described holding element (32) is arranged on that a wall portion (28) in the described wall portion goes up and away from described base portion (26).

8. mounting structure according to claim 1, wherein, described guiding piece (24) forms has the U-shaped cross section that is formed by base portion (26) that engages with described housing (12) and the wall portion (28,30) upright with respect to described base portion (26).