CN201927544U - Temperature and pressure dual-control switch - Google Patents
Temperature and pressure dual-control switch Download PDFInfo
- Publication number
- CN201927544U CN201927544U CN2010206502013U CN201020650201U CN201927544U CN 201927544 U CN201927544 U CN 201927544U CN 2010206502013 U CN2010206502013 U CN 2010206502013U CN 201020650201 U CN201020650201 U CN 201020650201U CN 201927544 U CN201927544 U CN 201927544U
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- temperature
- pressure
- switch
- barrier film
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Abstract
The utility model relates to a temperature and pressure dual-control switch, which comprises a shell, a switch box and diaphragms. The diaphragms are arranged between the shell and the switch box. A pressure switch mechanism is arranged in a cavity at the upper part of the switch box below the diaphragms. The pressure switch mechanism comprises a first receiving part, a second receiving part, a first down moving disk, a second down moving disk, an actuating rod and a pressure switch rod. Two layers of diaphragms are arranged and are tightly laminated. Both ends of a lower diaphragm are bent downwards to form supporting plates. Both left and right sides of the first receiving part are fixed on the supporting plates of the lower diaphragm and a cavity is formed between the first receiving part and the lower diaphragm. Moreover, a through center hole is formed by the middle parts of the first receiving part, the first down moving disk, the actuating rod and the pressure switch rod. The temperature and pressure dual-control switch can be used for simultaneously carrying out dual control on the pressure and the temperature in a system, so that according to the variation of the pressure and the temperature, a protective circuit is limitedly started and the influence of the variation of the temperature and the pressure on the whole system is eliminated. Therefore, the temperature and pressure dual-control switch has a good protection effect on the whole system.
Description
Technical field
The utility model relates to a kind of pressure switch, the switch of the common control of especially a kind of temperature and pressure, belong to the switching technique field.
Background technology
Fig. 1 is the cross-sectional view of traditional pressure switch.
As shown in Figure 1: the switch enclosure 13 that traditional pressure switch comprises shell 10 with inner space, combines with shell 10, wherein the upper center of shell 10 is a fluid passage, also be provided with barrier film 12 between itself and the switch enclosure top, barrier film 12 forms the spacer body of shell 10 and switch enclosure 13, and between the shell 10 of barrier film 12 both sides and switch enclosure 13 tops, also be provided with seal member 11, seal member 11 is an elastomer, then is provided with pressure switch mechanism in the upper cavity of the switch enclosure 13 of barrier film 12 bottoms.
Above-mentioned pressure switch mechanism comprise first accept parts 15, second accept parts 16, first along Moving plate 17, second along Moving plate 19, actuating strut 18 and pressure switch bar 20, wherein:
First to accept parts 15 be the bending body that upwards is bent to form planar projections in the middle of, the plane of its planar projections and barrier film are fitted, then be formed with downward protuberance 15a downwards at first two ends of accepting parts 15, downwards protuberance 15a be positioned at first first the contact both sides of accepting parts 15 bottoms along Moving plate 17;
Second two ends of accepting parts 16 protrude upward, encase first and accept the two ends and first of parts 15 along Moving plate 17, second central part of accepting parts 16 has centre bore, and protuberance 16b in the middle of in the middle of its bottom surface, also being provided with, make the surrounding wall of centre bore outstanding downwards, actuating strut 18 is arranged in the above-mentioned centre bore, and the top of actuating strut 18 is positioned at first bottom along Moving plate 17, in addition, second upper face of accepting parts 16 also is provided with protruding upward 16a, and protruding upward 16a contacts with first bottom surface along Moving plate 17;
Second is arranged on second bottom of accepting parts 16 along Moving plate 19, and its circumferential edges is fixed on the inwall of switch enclosure 13.
The working method of pressure switch is:
Fluid flows into by fluid passage, the pressure of its generation presses down barrier film 12, barrier film 12 presses down first and accepts parts 15, the first downward protuberance 15a that accepts parts 15 presses down first along Moving plate 17, first along the Moving plate distortion, press down second protruding upward the 16a that accepts parts 16 that is in contact with it, and then press down second and accept parts 16, second accepts the middle protuberance 16b pushing second downwards of parts 16 along Moving plate 19, second along Moving plate 19 generation deformation, and the first suitable Moving plate distortion while pressing action bar 18, actuating strut 18 pushes pressure switch bar 20 downwards, the pressure contact 21 of pressure switch bar 20 1 ends contacts with pressure fixing contact 22 downwards, and switch cuts out.
If pressure reduces, then second reply to previous status along Moving plate 19, then actuating strut 18, first is accepted parts 16 and first along Moving plate 17, second and is accepted parts 15 answer that all makes progress, at this moment, switch opens.
We know; above-mentioned pressure switch is mainly used in the freeze cycle pipeline in the refrigerating plant; but in the work system of reality; increasing or reducing also of its internal temperature exerts an influence to whole system; so traditional pressure switch can't realize temperature control, temperature sensor changes exactly, and then can't start protective circuit; eliminate the influence that variations in temperature produces whole system, do not reach best the protection of whole system.
The utility model content
In order to overcome the deficiencies in the prior art, the purpose of this utility model is to provide a kind of effectively sensed pressure and variations in temperature, and the two control switchs of temperature and pressure of duplicate protection can accurately be provided.
The utility model is achieved through the following technical solutions:
The two control switchs of a kind of temperature and pressure, comprise shell, switch enclosure and barrier film, barrier film is arranged between shell and the switch enclosure, in the upper cavity of the switch enclosure of barrier film bottom, be provided with pressure switch mechanism, pressure switch mechanism comprises that first accepts parts, second accepts parts, first along Moving plate, second along Moving plate, actuating strut and pressure switch bar, it is characterized in that, above-mentioned barrier film is provided with two-layer, the both sides barrier film fits tightly, wherein the two ends of lower floor's barrier film are bent to form supporting plate downwards, first left and right sides of accepting parts is fixed on the supporting plate of lower floor's barrier film, be formed with cavity between itself and the lower floor's barrier film, in addition, first accept parts, first along Moving plate, the common centre bore that connects that forms in the middle part of actuating strut and pressure switch bar.
In the upper cavity of the switch enclosure of lower floor barrier film bottom, also be provided with temperature switch mechanism.
Above-mentioned temperature switch mechanism comprises the temperature shell fragment, catch bar and temperature switch bar, wherein the temperature shell fragment is arranged on first and accepts in the cavity that parts and lower floor barrier film form, catch bar then is arranged on first and accepts parts, first along Moving plate, in the common centre bore that forms of actuating strut and pressure switch bar, the top of catch bar is positioned at the bottom of temperature shell fragment, its low side then is positioned at the top of temperature switch bar, in addition, one end of temperature switch bar is provided with the temperature contact, the bottom of temperature contact is the temperature fixed contact, temperature contact and temperature fixed contact are oppositely arranged, and constitute temperature switch.
The beneficial effects of the utility model are: the utility model is by being provided with temperature switch in common pressure switch; can carry out dual control to the pressure and temperature in the system simultaneously; according to pressure, temperature variation; start protective circuit limitedly; eliminate temperature and pressure and change the influence that whole system is produced, whole system is played a very good protection.
Description of drawings
Fig. 1 is the cross-sectional view of traditional pressure switch;
Fig. 2 is the cross-sectional view of the utility model one embodiment.
Main Reference numeral implication is among the figure:
10, shell 11, seal member 12, barrier film
12a, lower floor's barrier film 13, switch enclosure 15, first are accepted parts
15a, downward protuberance 16, second are accepted parts 16a, portion protruding upward
16b, middle protuberance 17, the first suitable Moving plate 18, actuating strut
19, second along Moving plate 20, pressure switch bar 21, pressure contact
22, pressure fixing contact 23, temperature switch bar 23a, temperature contact
24, temperature fixed contact 25, temperature shell fragment 26, catch bar.
Embodiment
Below in conjunction with accompanying drawing, describe embodiment of the present utility model in detail:
Fig. 2 is the cross-sectional view of the utility model one embodiment.
As shown in Figure 2: the two control switchs of temperature and pressure, comprise shell 10, switch enclosure 13 and barrier film 12, barrier film 12 is arranged between shell 10 and the switch enclosure 13, in the upper cavity of the switch enclosure 13 of barrier film 12 bottoms, be provided with pressure switch mechanism, pressure switch mechanism comprises that first accepts parts 15, second accepts parts 16, first along Moving plate 17, second along Moving plate 19, actuating strut 18 and pressure switch bar 20, above-mentioned barrier film 12 is provided with two-layer, the both sides barrier film fits tightly, wherein the two ends of lower floor's barrier film 12a are bent to form supporting plate downwards, first left and right sides of accepting parts 15 is fixed on the supporting plate of the barrier film 12a of lower floor, be formed with cavity between itself and the barrier film 12a of lower floor, in addition, first accept parts 15, first along Moving plate 17, the common centre bore that connects that forms in the middle part of actuating strut 18 and pressure switch bar 20.
Be formed with downward protuberance 15a downwards at first two ends of accepting parts 15, downwards protuberance 15a be positioned at first first the contact both sides of accepting parts 15 bottoms along Moving plate 17;
Second accepts parts 16 is arranged on first bottom along Moving plate 17, protuberance 16b in the middle of being provided with in the middle of its bottom surface, make the surrounding wall of centre bore outstanding downwards, actuating strut 18 is arranged in the above-mentioned centre bore, and the top of actuating strut 18 is positioned at first bottom along Moving plate 17, in addition, second upper face of accepting parts 16 also is provided with protruding upward 16a, and protruding upward 16a contacts with first bottom surface along Moving plate 17;
Second is arranged on second bottom of accepting parts 16 along Moving plate 19, and its circumferential edges is fixed on the inwall of switch enclosure 13.
In the upper cavity of the switch enclosure 13 of lower floor barrier film 12a bottom, also be provided with temperature switch mechanism, wherein, temperature switch mechanism comprises temperature shell fragment 25, catch bar 26 and temperature switch bar 23, wherein temperature shell fragment 25 is arranged on first and accepts in the cavity that parts 15 and the barrier film 12a of lower floor form, catch bar 26 then is arranged on first and accepts parts 15, first along Moving plate 17, in actuating strut 18 and the pressure switch bar 20 common centre bores that form, the top of catch bar 26 is positioned at the bottom of temperature shell fragment 25, its low side then is positioned at the top of temperature switch bar 23, in addition, one end of temperature switch bar 23 is provided with temperature contact 23a, the bottom of temperature contact 23a is a temperature fixed contact 24, temperature contact 23a and temperature fixed contact 24 are oppositely arranged, and constitute temperature switch.
The course of work of the present utility model is:
(1) when system is subjected to the pressure of fluid: fluid flows into by fluid passage, the pressure of its generation presses down barrier film 12, barrier film 12 presses down the barrier film 12a of lower floor, the barrier film 12a of lower floor then presses down first and accepts parts 15, the first downward protuberance 15a that accepts parts 15 presses down first along Moving plate 17, first along the Moving plate distortion, press down second protruding upward the 16a that accepts parts 16 that is in contact with it, and then press down second and accept parts 16, second accepts the middle protuberance 16b pushing second downwards of parts 16 along Moving plate 19, second along Moving plate 19 generation deformation, and first above-mentioned suitable 17 distortion while of the Moving plate pressing action bar 18, actuating strut 18 is pushing pressure switch bar 20 downwards, and 21 of the pressure contacts of pressure switch bar 20 1 ends contact with pressure fixing contact 22 downwards, and pressure switch is closed.
If pressure reduces, then second reply to previous status along Moving plate 19, and then, make actuating strut 18, first accept parts 16 and first and accept parts 15 answer that all makes progress that at this moment, pressure switch is opened along Moving plate 17, second.
(2) when system experiences the variations in temperature of system: when temperature raises, temperature shell fragment 25 deforms, it presses down catch bar 26, catch bar 26 presses temperature switch bar 20 downwards, the temperature contact 23a of temperature switch bar 20 1 ends moves downward, contact with temperature fixed contact 24, temperature switch is closed.
Under the situation that temperature switch is closed, if temperature reduces, then temperature shell fragment 25 and catch bar 26 are replied to original position, and at this moment, temperature switch is opened.
Certainly, in the process that temperature shell fragment 25 deforms, also can press down first simultaneously and accept parts 15, other process is identical with the course of work of pressure switch, repeats no more, and can cause pressure switch to be closed simultaneously this moment.
Certainly, in the process that pressure and temperature changes simultaneously, pressure switch and temperature switch concurrently-acting.
The utility model is simple in structure, has realized the common control of temperature and pressure, has protected system effectively.
Below disclose the utility model with preferred embodiment, so it is not in order to restriction the utility model, and all employings are equal to replaces or technical scheme that the equivalent transformation mode is obtained, all drops within the protection range of the present utility model.
Claims (3)
1. two control switchs of a temperature and pressure, comprise shell, switch enclosure and barrier film, barrier film is arranged between shell and the switch enclosure, in the upper cavity of the switch enclosure of barrier film bottom, be provided with pressure switch mechanism, pressure switch mechanism comprises that first accepts parts, second accepts parts, first along Moving plate, second along Moving plate, actuating strut and pressure switch bar, it is characterized in that, above-mentioned barrier film is provided with two-layer, two-layer barrier film fits tightly, wherein the two ends of lower floor's barrier film are bent to form supporting plate downwards, first left and right sides of accepting parts is fixed on the supporting plate of lower floor's barrier film, be formed with cavity between itself and the lower floor's barrier film, in addition, first accept parts, first along Moving plate, the common centre bore that connects that forms in the middle part of actuating strut and pressure switch bar.
2. the two control switchs of temperature and pressure according to claim 1 is characterized in that, also are provided with temperature switch mechanism in the upper cavity of the switch enclosure of lower floor barrier film bottom.
3. the two control switchs of temperature and pressure according to claim 2, it is characterized in that, described temperature switch mechanism comprises the temperature shell fragment, catch bar and temperature switch bar, wherein the temperature shell fragment is arranged on first and accepts in the cavity that parts and lower floor barrier film form, catch bar then is arranged on first and accepts parts, first along Moving plate, in the common centre bore that forms of actuating strut and pressure switch bar, the top of catch bar is positioned at the bottom of temperature shell fragment, its low side then is positioned at the top of temperature switch bar, in addition, one end of temperature switch bar is provided with the temperature contact, the bottom of temperature contact is the temperature fixed contact, temperature contact and temperature fixed contact are oppositely arranged, and constitute temperature switch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206502013U CN201927544U (en) | 2010-12-09 | 2010-12-09 | Temperature and pressure dual-control switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206502013U CN201927544U (en) | 2010-12-09 | 2010-12-09 | Temperature and pressure dual-control switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201927544U true CN201927544U (en) | 2011-08-10 |
Family
ID=44431381
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206502013U Expired - Fee Related CN201927544U (en) | 2010-12-09 | 2010-12-09 | Temperature and pressure dual-control switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201927544U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102024621A (en) * | 2010-12-09 | 2011-04-20 | 太平洋电子(昆山)有限公司 | Temperature and pressure doubly-controlled switch |
| CN102723237A (en) * | 2012-05-10 | 2012-10-10 | 宁波沐趣多电器有限公司 | High-current over-temperature, over-voltage and electromagnetic three-in-one tripping protector |
| CN107611926A (en) * | 2017-09-15 | 2018-01-19 | 珠海格力电器股份有限公司 | A kind of overload protection arrangement, method, storage medium, compressor and electrical equipment |
| CN114300305A (en) * | 2021-04-13 | 2022-04-08 | 慈溪市凯达温控器有限公司 | Novel liquid expansion type temperature controller and protection device thereof |
-
2010
- 2010-12-09 CN CN2010206502013U patent/CN201927544U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102024621A (en) * | 2010-12-09 | 2011-04-20 | 太平洋电子(昆山)有限公司 | Temperature and pressure doubly-controlled switch |
| CN102723237A (en) * | 2012-05-10 | 2012-10-10 | 宁波沐趣多电器有限公司 | High-current over-temperature, over-voltage and electromagnetic three-in-one tripping protector |
| CN102723237B (en) * | 2012-05-10 | 2014-07-09 | 宁波沐趣多电器有限公司 | High-current over-temperature, over-voltage and electromagnetic three-in-one tripping protector |
| CN107611926A (en) * | 2017-09-15 | 2018-01-19 | 珠海格力电器股份有限公司 | A kind of overload protection arrangement, method, storage medium, compressor and electrical equipment |
| CN107611926B (en) * | 2017-09-15 | 2020-11-06 | 珠海格力电器股份有限公司 | Overload protection device and method, storage medium, compressor and electric appliance |
| CN114300305A (en) * | 2021-04-13 | 2022-04-08 | 慈溪市凯达温控器有限公司 | Novel liquid expansion type temperature controller and protection device thereof |
| CN114300305B (en) * | 2021-04-13 | 2024-01-19 | 慈溪市凯达温控器有限公司 | Liquid expanding type temperature controller |
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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: 20110810 Termination date: 20141209 |
|
| EXPY | Termination of patent right or utility model |