CN202348854U - Fixing device for temperature sensing bulb of vehicular air-conditioner thermostatic expansion valve - Google Patents
Fixing device for temperature sensing bulb of vehicular air-conditioner thermostatic expansion valve Download PDFInfo
- Publication number
- CN202348854U CN202348854U CN2011203241393U CN201120324139U CN202348854U CN 202348854 U CN202348854 U CN 202348854U CN 2011203241393 U CN2011203241393 U CN 2011203241393U CN 201120324139 U CN201120324139 U CN 201120324139U CN 202348854 U CN202348854 U CN 202348854U
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- Prior art keywords
- fixing device
- bulb
- expansion valve
- bolt
- clip
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- Expired - Lifetime
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- 238000010438 heat treatment Methods 0.000 claims description 13
- 238000009826 distribution Methods 0.000 claims description 3
- 230000000295 complement effect Effects 0.000 claims description 2
- 238000004378 air conditioning Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 3
- 238000005457 optimization Methods 0.000 description 3
- 238000005057 refrigeration Methods 0.000 description 3
- 239000003795 chemical substances by application Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 238000005096 rolling process Methods 0.000 description 2
- 239000006200 vaporizer Substances 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012797 qualification Methods 0.000 description 1
- 239000003507 refrigerant Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
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- Air-Conditioning For Vehicles (AREA)
Abstract
The utility model discloses a fixing device for a temperature sensing bulb of a vehicular air-conditioner thermostatic expansion valve. The fixing device comprises an open hoop of which the section is of a C shape, wherein horizontal extending ends are respectively arranged at two open ends of the hoop; the fixing device further comprises a bolt and nut assembly; the head of a bolt is positioned at one horizontal extending end; and a nut matched with the other end of the bolt is limited at the other horizontal extending end. According to the fixing device disclosed by the utility model, due to the adoption of a fixing mode of matching the hoop with the bolt, the assembly reliability is improved; a temperature sensing bulb support seat in a traditional fixing mode is further omitted, so that the temperature sensing bulb is directly contacted with an outlet pipe of an evaporator; the temperature sensing bulb can be prevented from rotating by limiting, and thus strong vibration resistance and durability are obtained. The fixing device disclosed by the utility model is suitable for the vehicular air-conditioner thermostatic expansion valve and is used for fixing the temperature sensing bulb.
Description
Technical field
The utility model relates to a kind of car air-conditioner parts, specifically a kind of car air-conditioner heating power expansion valve bulb fixing device.
Background technique
Heating power expansion valve is one of core component in the automotive air-conditioning system, and its effect is throttling step-down and regulating system refrigerant flow.Automotive air-conditioning system will be brought into play maximum refrigeration and guarantee the safe operation of compressor; The evaporator outlet refrigeration agent must have certain degree of superheat; And its degree of superheat can change when air-conditioning system is moved thereupon; Just need expansion valve that the flow of refrigeration agent is regulated this moment, uses the temperature of making a slip of the tongue and maintain in the designing requirement.Expansion valve is to rely on the bulb of being close on the evaporator outlet pipe to experience the evaporator outlet degree of superheat, thereby realizes the adjusting to the outlet degree of superheat.This shows that fitting tightly for the effect of the normal operation of air-conditioning system of bulb and evaporator outlet pipe is most important.
The basic structure of expansion valve is as shown in Figure 1, and the means of fixation that its bulb 11 and evaporator outlet pipe are 13 is following:
(1) at first bulb bearing 12 levels of aluminum entity is put in evaporator outlet pipe 13 top positions, makes lower surface and the pipeline of bulb bearing 12 fit (as shown in Figure 2);
(2), fitted in the bulb 11 and the top of bulb bearing 12 with the top of bulb 11 placements with bulb bearing 12;
(3) use band flexible collar 14 that bulb 11, bulb bearing 12 and evaporator outlet pipe 13 corrals are fixed.
Above-mentioned means of fixation exists following deficiency:
(1) bulb 11 need could realize through transition piece bulb bearing 12 with connecting of evaporator outlet pipe 13, caused cost allowance;
When (2) existence of bulb bearing 12 caused the temperature variation of evaporator outlet pipe 13 to be passed to bulb 11, the phenomenon of expansion valve control lag appearred;
(3) it is solid to utilize clip 14 self elasticity that each parts is enclosed, and whole resistance to vibration, the durability in fixing back is all relatively poor, is prone to cause bulb 11 to experience the problem of temperature drift;
(4) mode of structure of overall fixed, restriction without spin is prone to produce bulb around the phenomenon that evaporator outlet pipe rotates, and influences its durability.
Summary of the invention
The technical problem that the utility model will solve provides a kind of car air-conditioner heating power expansion valve bulb fixing device, and the means of fixation that adopts clip and bolt to match has increased the reliability of assembling; The utility model has been cancelled the bulb bearing in the existing means of fixation further, and bulb is directly contacted with evaporator outlet pipe, can avoid it to rotate to the spacing of bulb, and resistance to vibration and durability are strong.
For solving the problems of the technologies described above, the technological scheme that the utility model adopted is:
A kind of car air-conditioner heating power expansion valve bulb fixing device; Comprise that section is the opening clip of C type; Said clip encloses outside a side of the bulb that is provided with up and down, evaporator outlet pipe; Its opening is located at the bulb that is provided with up and down, the opposite side of evaporator outlet pipe, and its specialization is that two open end of clip have the horizontal-extending end respectively; This fixing device also comprises bolt, the nut with the clip adapted, and said bolt head is positioned one of horizontal-extending end and locates, and the nut that is complementary with the other end of bolt is limited in two places of horizontal-extending end.
More than be the basic structure of the utility model, after bolt, nut assembly and clip matched, fixed effect was reliable, was difficult for deflecting.
Optimization as the utility model; The distribution arrangement of evaporator outlet pipe and the bearing of trend of clip parallel; The outer wall at evaporator outlet pipe top is provided with radius vector to the groove that sink and extend vertically; The bottom section shape of the section configuration of said groove and the very big path portion of bulb is suitable, and the very big path portion of bulb falls within the groove.
This position relation between bulb and evaporator outlet pipe has been cancelled the bulb bearing in the existing means of fixation, and bulb is directly contacted with evaporator outlet pipe, can avoid it to rotate to the spacing of bulb, and resistance to vibration and durability are strong; Can also save and make the cost that the bulb bearing is taken place.
As the further optimization of the utility model, the free end of the horizontal-extending end of said clip also has flanging, and two corresponding positions that have on the horizontal-extending end of flanging are provided with fluting; Bolt head is limited in one of fluting and locates; Nut is the bar shaped nut, is positioned two places of fluting after matching with the other end of bolt.
The design of fluting and bar shaped nut can realize in advance bolt being matched with the bar shaped nut, is positioned the purpose at fluting place again, makes assembling more laborsaving, and the design of flange is for the qualification to nut and bolt, slippage when preventing the power tension.
As the optimization further of the utility model, the hoop of said clip is provided with the strip openwork hole on one's body.
Such design is in order to improve the intensity of clip, to alleviate the weight of clip, reduce its cost, strengthening its elasticity to improve the ability that it bears resiliently deformable, and is more laborsaving when making assembling.
Owing to adopted above-mentioned technological scheme, the utility model compared with prior art, the technological progress that is obtained is:
(1) high groove is saved manufacture cost to replace the mode of bulb bearing on the evaporator outlet pipe;
(2) evaporator outlet pipe is directly contacted with bulb, reduced temperature transfer and lagged behind, bulb is improved the perceived accuracy of the degree of superheat the influence of air-conditioning system control generation, thus more accurate to the adjusting of the evaporator outlet degree of superheat;
(3) on clip, slot, it is spacing to utilize bar shaped nut and clip flange to form, and directly can bolt be put into, and does not have the deviation that aligns;
(4) utilize groove on the evaporator outlet pipe, bulb is formed spacing, avoid it to rotate;
(5) use the bolt clip, improved reliability of fixation.
To sum up visible, the utility model has increased the reliability of assembling; Behind the cancellation bulb bearing, bulb is directly contacted with evaporator outlet pipe, can avoid it to rotate to the spacing of bulb, resistance to vibration and durability are strong.The utility model is applicable on the car air-conditioner heating power expansion valve, is used for bulb is fixed.
The utility model below will combine Figure of description and specific embodiment to do further explain.
Description of drawings
Fig. 1 is the overall structure schematic representation of car air-conditioner heating power expansion valve;
Fig. 2 is the means of fixation schematic representation of bulb in the existing technology;
Fig. 3-5 is respectively the structural representation of the different amount of clip 4 among the utility model embodiment;
Fig. 6 is the structural representation of evaporator outlet pipe 3 among the utility model embodiment;
Fig. 7 is A-A view of Fig. 6;
Fig. 8 is the utility model embodiment's an overall structure schematic representation;
User mode reference drawing when Fig. 9 is assemblied on the car air-conditioner vaporizer for the utility model embodiment.
Among the figure: 1,11-bulb, 2-cross cap bolt, 3,13-evaporator outlet pipe, 4,14-clip, 5-bar shaped nut, 6-groove, 12-bulb bearing.
Embodiment
Embodiment
Shown in Figure 8 is a kind of car air-conditioner heating power expansion valve bulb fixing device, comprises clip 4 and cross cap bolt 2, bar shaped nut 5.
Like Fig. 6, shown in Figure 7; The bearing of trend of the distribution arrangement of evaporator outlet pipe 3 and clip 4 parallels; The outer wall at evaporator outlet pipe 3 tops is provided with radius vector to the groove 6 that sink and extend vertically; The bottom section shape of the very big path portion of the section configuration of groove 6 and bulb 1 is suitable, and the very big path portion of bulb 1 falls within the groove 6.
The structure of clip 4 is shown in Fig. 3-5, and its section is the C type, has opening, and hoop is provided with the strip openwork hole on one's body.
As shown in Figure 8, clip 4 encloses outside the top of the association of bulb that is provided with up and down 1 and evaporator outlet pipe 3, a side, bottom, its opening is located at the opposite side of association.Two open end of clip 4 have the horizontal-extending end respectively, and the free end of horizontal-extending end also has flanging, and two corresponding positions that have on the horizontal-extending end of flanging are provided with fluting; The head of cross cap bolt 2 is limited in one of fluting and locates; After matching, the other end of bar shaped nut 5 and cross cap bolt 2 is positioned two places of fluting.
User mode when present embodiment is assemblied on the car air-conditioner vaporizer is as shown in Figure 9.
The installation process of present embodiment is following:
(1), utilizes the rolling groove of rolling equipment at evaporator outlet pipe horizontal pipe place;
(2) make clip;
(3) groove on bulb and the evaporator outlet pipe is fitted;
(4) utilize clip elasticity, bulb and evaporator outlet pipe is tentatively fixing;
(5) on cross cap bolt, the bar shaped nut screwed in to bolt expose 2～3mm;
The bolt that (6) will overlap the bar shaped nut is put in the clip fluting, and bar shaped nut and clip flange are fitted, and when urgent bolt, does not rotate;
(7) use instrument such as electric screw driver, bolt is urgent.
Claims (5)
1. a car air-conditioner heating power expansion valve bulb fixing device comprises that section is the opening clip of C type,
It is characterized in that:Two open end of clip have the horizontal-extending end respectively; This fixing device also comprises bolt, nut assembly, and said bolt head is positioned one of horizontal-extending end and locates, and the nut that is complementary with the other end of bolt is limited in two places of horizontal-extending end.
2. car air-conditioner heating power expansion valve bulb fixing device according to claim 1,
It is characterized in that:The distribution arrangement of evaporator outlet pipe and the bearing of trend of clip parallel; The outer wall at evaporator outlet pipe top is provided with the groove that radially sink and extend vertically; The bottom section shape of the section configuration of said groove and the very big path portion of bulb is suitable, and the very big path portion of bulb falls within the groove.
3. car air-conditioner heating power expansion valve bulb fixing device according to claim 1 and 2,
It is characterized in that:The free end of the horizontal-extending end of said clip also has flanging, and two corresponding positions that have on the horizontal-extending end of flanging are provided with fluting; Bolt head is limited in one of fluting and locates; Nut is the bar shaped nut, is positioned two places of fluting after matching with the other end of bolt.
4. car air-conditioner heating power expansion valve bulb fixing device according to claim 1 and 2,
It is characterized in that:The hoop of said clip is provided with the strip openwork hole on one's body.
5. car air-conditioner heating power expansion valve bulb fixing device according to claim 3,
It is characterized in that:The hoop of said clip is provided with the strip openwork hole on one's body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203241393U CN202348854U (en) | 2011-08-31 | 2011-08-31 | Fixing device for temperature sensing bulb of vehicular air-conditioner thermostatic expansion valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203241393U CN202348854U (en) | 2011-08-31 | 2011-08-31 | Fixing device for temperature sensing bulb of vehicular air-conditioner thermostatic expansion valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202348854U true CN202348854U (en) | 2012-07-25 |
Family
ID=46537861
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203241393U Expired - Lifetime CN202348854U (en) | 2011-08-31 | 2011-08-31 | Fixing device for temperature sensing bulb of vehicular air-conditioner thermostatic expansion valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202348854U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103234654A (en) * | 2013-04-28 | 2013-08-07 | 长城汽车股份有限公司 | Temperature sensor for automotive air conditioning evaporator |
| CN104613683A (en) * | 2015-01-22 | 2015-05-13 | 合肥华凌股份有限公司 | Evaporator assembly applied to refrigeration equipment and refrigerator with same |
| CN105691147A (en) * | 2016-01-18 | 2016-06-22 | 河北驰特轨道交通设备有限公司 | Heat pump air-conditioning system of blade electric vehicle |
| CN110906592A (en) * | 2018-09-17 | 2020-03-24 | 重庆华超金属有限公司 | Electronic expansion valve |
| CN113654284A (en) * | 2020-05-12 | 2021-11-16 | 浙江三花制冷集团有限公司 | Temperature sensing part and refrigerating system with same |
-
2011
- 2011-08-31 CN CN2011203241393U patent/CN202348854U/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103234654A (en) * | 2013-04-28 | 2013-08-07 | 长城汽车股份有限公司 | Temperature sensor for automotive air conditioning evaporator |
| CN103234654B (en) * | 2013-04-28 | 2015-07-01 | 长城汽车股份有限公司 | Temperature sensor for automotive air conditioning evaporator |
| CN104613683A (en) * | 2015-01-22 | 2015-05-13 | 合肥华凌股份有限公司 | Evaporator assembly applied to refrigeration equipment and refrigerator with same |
| CN105691147A (en) * | 2016-01-18 | 2016-06-22 | 河北驰特轨道交通设备有限公司 | Heat pump air-conditioning system of blade electric vehicle |
| CN110906592A (en) * | 2018-09-17 | 2020-03-24 | 重庆华超金属有限公司 | Electronic expansion valve |
| CN110906592B (en) * | 2018-09-17 | 2022-04-05 | 重庆华超金属有限公司 | Electronic expansion valve |
| CN113654284A (en) * | 2020-05-12 | 2021-11-16 | 浙江三花制冷集团有限公司 | Temperature sensing part and refrigerating system with same |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120725 |
|
| CX01 | Expiry of patent term |