CN203859060U - Automobile air-conditioning pressure switch - Google Patents
Automobile air-conditioning pressure switch Download PDFInfo
- Publication number
- CN203859060U CN203859060U CN201420283492.5U CN201420283492U CN203859060U CN 203859060 U CN203859060 U CN 203859060U CN 201420283492 U CN201420283492 U CN 201420283492U CN 203859060 U CN203859060 U CN 203859060U
- Authority
- CN
- China
- Prior art keywords
- pressure switch
- cavity
- housing
- automobile air
- air conditioner
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model discloses an automobile air-conditioning pressure switch. The automobile air-conditioning pressure switch comprises a housing and an outer conductive body arranged in the housing in a penetrating manner. The housing is internally provided with a cavity. The lower part of the housing is provided with an air inlet communicating with the cavity. The cavity is internally provided with a ball contact and a spring reset plate. One end of the ball contact is connected with the outer conductive body, and the other end is connected with a movable contact part. The movable contact part comprises a switch ejector pin and springs. The air inlet is internally provided with a hollow piston and an air bag sleeve sleeving the piston. The pressure switch is simple and compact in internal structure, good in sealing effect and accurate in alarming.
Description
Technical field
The utility model relates to pressure switch field, relates in particular to a kind of automobile air conditioner pressure switch.
Background technology
Pressure switch is ubiquitous in automatically controlling; fast development along with automobile industry; application in car air conditioner refrigerant circulation line is also more and more frequent; it is used for detecting the pressure of cooling cycle system; when pressure anomaly, start correspondingly protective circuit; prevent from causing the damage of system; and high-voltage switch gear is relatively conventional a kind of in the middle of belonging to; when the undesired situation such as occur that fin stops up, cooling fan does not turn or cold-producing medium is excessive; system pressure can be too high; if do not utilize high-voltage switch gear to be controlled, too high pressure can damage system element.
A kind of high-voltage tube pressure switch is disclosed in being 201320315414.4 in the patent No., comprise housing, joint, one end of joint is inserted in housing one end and is connected with housing, in joint, be provided with contact, in housing, be provided with the shell fragment with contact, in housing, be provided with promotion shell fragment and recover mechanism with contact with separated promotion, comprise the pushing block that is arranged at the push rod in the housing other end and is promoted by push rod, it is separated with contact that described pushing block promotes shell fragment, and be arranged at and on pushing block, promote pushing block and reset so that the elastomeric element of shell fragment and contact.This utility model has promoted the compressive resistance ability of whole pressure switch, and the anti-pressure ability of this pressure switch is greater than 50MPa, meets the instructions for use in automobile high-voltage tube completely.
The high-voltage tube pressure switch stable connection of above-mentioned utility model, elastomeric element is durable in use, occurs that the probability of damaging is also very low in high-voltage tube, long service life even work long hours.But because above-mentioned switch has been considered good sealing and the accuracy of warning, therefore too much part has been installed in inside, dismounting trouble and part too much cause the transmission of energy one-level level to cause in the past very large losing, and there is defect in some internal structures pressure switch simple, that part is simplified on the market aspect sealing property, and sealing property is bad, will directly cause the inaccurate of warning, therefore, can not take into account sealing and inner simplification simultaneously.
Utility model content
Technical problem to be solved in the utility model be for the above-mentioned state of the art, provide a kind of internal structure simple, simplify and good sealing effect, the automobile air conditioner pressure switch accurately of reporting to the police.
For achieving the above object, the utility model provides following technical scheme:
A kind of automobile air conditioner pressure switch, comprise housing and be located in the outer electric conductor in housing, in described housing, be provided with cavity, described lower housing portion offers the air admission hole being connected with described cavity, in described cavity, be provided with ball contact and spring reset plate, one end, described ball contact is connected with outer electric conductor, and the other end is connected with movable contact, described movable contact comprises switch thimble and spring, is provided with hollow piston and is set in the Air sac cover on piston in described air admission hole.
By adopting technique scheme, movable contact comprises switch thimble and spring, and described switch thimble is preferably by the material conducting electricity very well to be made, like this, just take into account the effect of push rod and moving contact herein simultaneously, simplified inner body, manufacture simple, easy for installation.Air sac cover is set in addition, utilizes the Telescopic of Air sac cover to realize the movement to switch thimble, and the good seal performance of Air sac cover, the process that sealing ring, sealed bolster plate are installed saved.
As concrete technical scheme of the present utility model, described switch thimble comprises interconnective thimble seat and shank, and described shank comprises integrated front bar and rear bar, and described front shank diameter is less than rear shank diameter.
By adopting technique scheme, described front shank diameter is smaller, and rear bar can be contacted with ball contact after moving to certain distance, and front bar distance certain with ball holding contact all the time in mobile process can not touched.
The utility model is further set to: described front bar is provided with the arc-shaped notch suitable with described ball contact in the one end near described rear bar.
By adopting technique scheme, can prevent stuck, if be not provided with arc-shaped notch, switch thimble will be stuck in the indent that front bar and rear bar intersect in mobile process, thereby cause stuck and no longer move, now gasbag is also in further expansion, but there is no the space of expanding, the situation such as will cause that gasbag bursts.
The utility model is further set to: described thimble seat and described cavity size are suitable and be located in described cavity, described thimble seat comprises front end face and rear end face, described spring one end is connected with described front end face, and the other end is conflicted and is connected with described spring reset plate.
By adopting technique scheme, thimble seat and cavity are preferably cylindric, and more convenient slippage coordinates, and utilizes the elastic force of spring to move.
The utility model is further set to: described hollow piston be located in described air admission hole and the external diameter of hollow piston rod and the diameter of described air admission hole suitable.
By adopting technique scheme, interference fit or be interference fits preferably between described hollow piston and air admission hole, can not depart from air admission hole in use hollow piston, and generation leakage, has guaranteed good sealing.
The utility model is further set to: described Air sac cover is rubber pneumatic bag cover or latex balloon cover.
By adopting technique scheme, rubber and latex all have good ductility and sealing, can guarantee that Air sac cover produces enough distortion pull switch thimbles and moves.
Compared with prior art, the utility model has the advantage of: not only internal structure is simple, saved a series of loaded down with trivial details mechanism of original pressure switch inside, extremely simplify, adopt Air sac cover to carry out pull switch thimble simultaneously, accurately, cost is cheaper, is convenient to promote the use of for good sealing effect, warning.
Accompanying drawing explanation
Fig. 1 is automobile air conditioner pressure switch internal structure schematic diagram in the utility model embodiment;
Fig. 2 is the A portion enlarged drawing of Fig. 1;
Fig. 3 is automobile air conditioner pressure switch surface structure schematic diagram in the utility model embodiment.
Reference numeral: 1, housing; 2, outer electric conductor; 3, cavity; 4, air admission hole; 5, ball contact; 6, spring reset plate; 7, movable contact; 8, air bag portion; 71, switch thimble; 72, spring; 81, hollow piston; 82, Air sac cover; 711, thimble seat; 712, shank; 713, front bar; 714, rear bar; 715, arc-shaped notch; 716, front end face; 717, rear end face.
Embodiment
Below in conjunction with accompanying drawing embodiment to being described in further detail in automobile air conditioner pressure switch of the present utility model.
As Fig. 1, shown in Fig. 3, a kind of automobile air conditioner pressure switch, comprise housing 1 and be located in the outer electric conductor 2 in housing 1, in described housing 1, be provided with cavity 3, described housing 1 bottom offers the air admission hole 4 being connected with described cavity 3, in described cavity 3, be provided with ball contact 5 and spring reset plate 6, 5 one end, described ball contact are connected with outer electric conductor 2, the other end is connected with movable contact 7, in order to simplify inner body, described movable contact 7 comprises switch thimble 71 and spring 72, described switch thimble 71 is preferably by the material conducting electricity very well to be made, like this, just taken into account herein the effect of push rod and moving contact simultaneously, in described air admission hole 4, be provided with hollow piston 81 and be set in the Air sac cover 82 on piston, utilize the Telescopic of Air sac cover 82 to realize the movement to switch thimble 71, and the good seal performance of Air sac cover 82, saved installation sealing ring, the process of sealed bolster plate.Described Air sac cover 82 is preferably rubber pneumatic bag cover 82 or latex balloon cover 82.Can guarantee that Air sac cover 82 produces enough distortion pull switch thimbles 71 and moves.
Described switch thimble 71 comprises interconnective thimble seat 711 and shank 712, and as shown in Figure 2, described shank 712 comprises integrated front bar 713 and rear bar 714, and described front bar 713 diameters are less than rear bar 714 diameters.Rear bar 714 can be contacted with ball contact 5 after moving to certain distance, and front bar 713 maintain a certain distance all the time in mobile process with ball contact 5.For fear of switch thimble 71, in mobile process, be stuck in the indent that front bar 713 and rear bar 714 intersect, cause stuck and no longer move, impact is reported to the police, and in described front bar 713, in the one end near described rear bar 714, is provided with the arc-shaped notch 715 suitable with described ball contact 5.
As shown in Figure 1, described thimble seat 711 is suitable and be located in described cavity 3 with described cavity 3 sizes, described thimble seat 711 comprises front end face 716 and rear end face 717, and described spring 72 one end are connected with described front end face 716, and the other end is conflicted and is connected with described spring reset plate 6.Thimble seat 711 and cavity 3 are preferably cylindric, and more convenient slippage coordinates, and can utilize the elastic force of spring 72 move and reset.Described hollow piston 81 be located in described air admission hole 4 and external diameter and described air admission hole 4 diameters suitable, for hollow piston 81 in use can not occur to depart from air admission hole 4, produce to reveal and cause pressure reduction inaccurate, interference fit or be interference fits preferably between described hollow piston 81 and air admission hole 4.
During work, automobile air conditioner pressure switch of the present utility model is arranged on air-conditioning duct, outer electric conductor 2 is connected with the display outside air-conditioning, when normal work, inside and outside differential pressure is very low, between switch thimble 71 and ball contact 5 just in off-state, and when fin obstruction, during the undesired situation such as cooling fan does not turn or cold-producing medium is excessive, guard system pressure can be too high, Air sac cover 82 will be subject to the impact of loine pressure and expand so, pull switch thimble 71 moves, until move to arc-shaped notch 715 places, ball contact 5 contacts with switch thimble 71, connect circuit, realize and reporting to the police.
The above is only preferred implementation of the present utility model, and protection range of the present utility model is also not only confined to above-described embodiment, and all technical schemes belonging under the utility model thinking all belong to protection range of the present utility model.It should be pointed out that for those skilled in the art, in the some improvements and modifications that do not depart under the utility model principle prerequisite, these improvements and modifications also should be considered as protection range of the present utility model.
Claims (6)
1. an automobile air conditioner pressure switch, comprise housing and be located in the outer electric conductor in housing, in described housing, be provided with cavity, described lower housing portion offers the air admission hole being connected with described cavity, in described cavity, be provided with ball contact and spring reset plate, one end, described ball contact is connected with outer electric conductor, the other end is connected with movable contact, it is characterized in that: described movable contact comprises switch thimble and spring, in described air admission hole, be provided with hollow piston and be set in the Air sac cover on piston.
2. automobile air conditioner pressure switch according to claim 1, is characterized in that: described switch thimble comprises interconnective thimble seat and shank, and described shank comprises integrated front bar and rear bar, and described front shank diameter is less than rear shank diameter.
3. automobile air conditioner pressure switch according to claim 2, is characterized in that: described front bar is provided with the arc-shaped notch suitable with described ball contact in the one end near described rear bar.
4. automobile air conditioner pressure switch according to claim 3, it is characterized in that: described thimble seat and described cavity size are suitable and be located in described cavity, described thimble seat comprises front end face and rear end face, described spring one end is connected with described front end face, and the other end is conflicted and is connected with described spring reset plate.
5. according to the automobile air conditioner pressure switch described in arbitrary claim in claim 1 to 4, it is characterized in that: described hollow piston be located in described air admission hole and the external diameter of hollow piston rod and the diameter of described air admission hole suitable.
6. automobile air conditioner pressure switch according to claim 5, is characterized in that: described Air sac cover is rubber pneumatic bag cover or latex balloon cover.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420283492.5U CN203859060U (en) | 2014-05-29 | 2014-05-29 | Automobile air-conditioning pressure switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420283492.5U CN203859060U (en) | 2014-05-29 | 2014-05-29 | Automobile air-conditioning pressure switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203859060U true CN203859060U (en) | 2014-10-01 |
Family
ID=51608902
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420283492.5U Expired - Fee Related CN203859060U (en) | 2014-05-29 | 2014-05-29 | Automobile air-conditioning pressure switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203859060U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106150112A (en) * | 2015-04-17 | 2016-11-23 | 张成芳 | A kind of wall-building machine mortar induction controller |
| CN106620962A (en) * | 2015-10-30 | 2017-05-10 | 无锡沃骐医疗科技有限公司 | Syringe |
| CN111923314A (en) * | 2020-08-04 | 2020-11-13 | 程致远 | Polyurethane foaming machine |
-
2014
- 2014-05-29 CN CN201420283492.5U patent/CN203859060U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106150112A (en) * | 2015-04-17 | 2016-11-23 | 张成芳 | A kind of wall-building machine mortar induction controller |
| CN106620962A (en) * | 2015-10-30 | 2017-05-10 | 无锡沃骐医疗科技有限公司 | Syringe |
| CN111923314A (en) * | 2020-08-04 | 2020-11-13 | 程致远 | Polyurethane foaming machine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141001 Termination date: 20210529 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |