CN208478236U - A kind of diaphragm type pressure switch - Google Patents
A kind of diaphragm type pressure switch Download PDFInfo
- Publication number
- CN208478236U CN208478236U CN201820736278.9U CN201820736278U CN208478236U CN 208478236 U CN208478236 U CN 208478236U CN 201820736278 U CN201820736278 U CN 201820736278U CN 208478236 U CN208478236 U CN 208478236U
- Authority
- CN
- China
- Prior art keywords
- base body
- cover board
- sensing chip
- mandril
- diaphragm type
- 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
Links
- 238000005452 bending Methods 0.000 claims abstract description 5
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims description 4
- 229910010293 ceramic material Inorganic materials 0.000 claims description 3
- 230000035807 sensation Effects 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 7
- 238000003466 welding Methods 0.000 abstract description 6
- 238000010276 construction Methods 0.000 abstract description 2
- 239000000463 material Substances 0.000 description 5
- 239000012530 fluid Substances 0.000 description 3
- 239000000919 ceramic Substances 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 229910000975 Carbon steel Inorganic materials 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 238000004378 air conditioning Methods 0.000 description 1
- 229910052790 beryllium Inorganic materials 0.000 description 1
- ATBAMAFKBVZNFJ-UHFFFAOYSA-N beryllium atom Chemical compound [Be] ATBAMAFKBVZNFJ-UHFFFAOYSA-N 0.000 description 1
- 239000010962 carbon steel Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005489 elastic deformation Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 238000005057 refrigeration Methods 0.000 description 1
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- Switches Operated By Changes In Physical Conditions (AREA)
Abstract
The utility model discloses a kind of diaphragm type pressure switchs, the device includes switch main body, switch main body includes base body and cover board, elastic sensing chip is clamped between the base body and cover board, the upper surface of the elasticity sensing chip is connected with mandril, the mandril runs through the cover board, and the mandril transmits the deformation that the elastic sensing chip generates；The bottom of the cover board includes two protrusions protruded outward, two sides upwardly extend at the top of the base body bends inwards again, form caulking part, the upper surface of two protrusions is bonded with the lower surface of the caulking part bending place, the lateral surface of two protrusions is bonded with the medial surface of the caulking part, makes to be fixedly connected at the top of bottom, elastic sensing chip and the base body of the cover board.A kind of diaphragm type pressure switch provided by the utility model is solved the problems, such as to use welding sensing chip easily-deformable, is improved yield rate, reduce production cost using the fixed sensing chip of riveted construction.
Description
Technical field
The utility model relates to pressure switch manufacturing fields, and in particular to a kind of diaphragm type pressure switch.
Background technique
It is known that pressure switch is a kind of simple pressure control device, and when reaching rated value by measuring pressure, pressure
Capable of emitting alarm or control signal are switched, is nowadays had been widely cited in numerous industrial circles such as heating refrigeration, air-conditioning, automobiles, it is right
When its applied system is controlled, the pressure of working media is detected.The working principle of pressure switch is one safety of first setting
Pressure, when the pressure in system is higher or lower than safe pressure, the sensing chip in switch is because deformation occurs for pressurized fluid, then
It is switched on or switched off by the guide rod pull switch connector of connection；When pressure is down to or is risen within the scope of safe pressure, sensing chip
Rapid reset, switch automatically reset therewith, achieve the purpose that control by measuring pressure.The elastic element that pressure switch uses has individual pen
Bourdon tube, diaphragm, bellows and bellows etc., and diaphragm type pressure switch is since with measuring, accurate, easy to operate, performance is steady
Fixed, using flexible, it is applied widely the advantages that, therefore there is relatively broad application.In the prior art for diaphragm pressure
Diaphragm in switch is generally fixed in pressure switch by the way of welding, and welding when can generate higher temperature, right
For the diaphragm of stainless steel material, this fixed form frequently can lead to diaphragm deformation, and reference is not right, and yield rate is lower, very
To subsequent use is influenced, increase the cost of production.
Utility model content
In view of the deficiencies in the prior art, the purpose of this utility model is to provide a kind of diaphragm type pressure switch,
Using the fixed sensing chip of riveted construction, solves the problems, such as to use welding sensing chip easily-deformable, improve yield rate, reduce production
Cost.
To achieve the above objectives, the technical scheme adopted by the utility model is that:
A kind of diaphragm type pressure switch comprising switch main body, switch main body include base body and cover board, and feature exists
In: for the center at the top of the base body to lower recess, the space between the base body and cover board forms pressure sensitive room,
The pressure chamber for running through the base body and being connected to the pressure sensitive room, the base body are equipped in the base body
Elastic sensing chip is clamped between cover board, the upper surface of the elasticity sensing chip is connected with mandril, and the mandril is through described
Cover board, the mandril transmit the deformation that the elastic sensing chip generates；The bottom of the cover board includes two and protrudes outward
Protrusion, base body top two sides upwardly extend to bend inwards again, forms caulking part, the upper surface of two protrusions
It being bonded with the lower surface of the caulking part bending place, the lateral surface of two protrusions is bonded with the medial surface of the caulking part,
Make to be fixedly connected at the top of bottom, elastic sensing chip and the base body of the cover board.
Based on the above technical solution, it is equipped between the elastic sensing chip and the both ends contact-segment of base body
Rubber seal.
Based on the above technical solution, the axial line of the mandril is overlapped with the axial line of pressure chamber.
Based on the above technical solution, the axial line of the base body is overlapped with the axial line of the cover board.
Based on the above technical solution, the axial line of the base body is overlapped with the center line of the mandril.
Based on the above technical solution, the outer surface of the base body is equipped with external screw thread.
Based on the above technical solution, the mandril uses ceramic material.
Compared with the prior art, the advantages of the utility model are:
The utility model replaces being welded and fixed using the connection type of riveted structure, and there are two protrude outward for cover board bottom
Protrusion, the top two sides of base body upwardly extend to bend inwards again, forms caulking part, two raised upper surfaces and riveting
The lower surface of socket part bending place is bonded, and two raised lateral surfaces are bonded with the medial surface of caulking part, makes bottom, the elasticity of cover board
It is fixed together at the top of sensing chip and base body.The connection type of riveted structure will not generate damage to sensing chip,
In order to guarantee connection compactness, be equipped with rubber seal between elastic sensing chip and the both ends contact-segment of base body,
Damage of the rigid contact to elastic sensing chip, rubber seal are reduced while the tightness degree of each component connection can further be reinforced
Circle is flexible material, moreover it is possible to certain bradyseism effect is played, it is structurally reasonable, and improve the yield rate in production process.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of diaphragm type pressure switch in the utility model embodiment.
In figure: 1- base body, 10- pressure chamber, 2- cover board, 20- protrusion, 3- pressure sensitive room, 4- caulking part, 5- bullet
Property sensing chip, 6- mandril.
Specific embodiment
The embodiments of the present invention are described in further detail below in conjunction with attached drawing.
Shown in Figure 1, the utility model embodiment provides a kind of diaphragm type pressure switch, including switch main body, switch
Main body successively includes base body 1 and cover board 2 from bottom to up, the center at the top of base body 1 to lower recess, base body 1 with
Space between the lower surface of cover board 2 forms pressure sensitive room 3, is equipped in base body 1 and runs through base body 1 and and feeling of stress
The pressure chamber 10 for answering room 3 to be connected to.The bottom of cover board 2 includes two protrusions 20 protruded outward, the top two of base body 1
Side upwardly extends and bends inwards again, forms caulking part 4, at this point, under the upper surface of two protrusions 20 and 4 bending place of caulking part
Surface fitting, the lateral surface of two protrusions 20 are bonded with the medial surface of caulking part 4.It is also clamped between base body 1 and cover board 2
Elastically-deformable elastic sensing chip 5 can occur, elastic sensing chip 5 is located inside pressure sensitive room 3 and pressure sensitive room 3 is complete
Partition, elastic sensing chip 5 be located at the setting of caulking part 4 so that the bottom of cover board 2, elastic sensing chip 5 and base body 1 top
It is fixed together, compared to traditional welding connection structure, riveted structure overcomes the high temperature generated when welding well
Problem, avoids that elastic sensation in production process answers piece 5 due to high temperature and deformation occurs, reduces production while improving yield rate
Cost, also more conducively pressure switch subsequent use.Wherein, in order to further ensure cover board 2, elastic sensing chip 5 and pedestal master
The leakproofness and compactness that body 1 connects place suitable dimension between the both ends that elastic sensing chip 5 is contacted with base body 1
Rubber seal, rubber seal have certain elasticity and pliability, are avoided that the rigidity of rubber seal Yu base body 1
Contact can also occur to play the role of certain damping when elastic deformation resets in elastic sensing chip 5.
Shown in Figure 1, the upper surface of elastic sensing chip 5 is connected with mandril 6, and mandril 6 runs through cover board 2 vertically, and can be
Perpendicular to arbitrarily telescopic moving up and down on the vertical direction of cover board 2, can be applied in view of diaphragm type pressure switch each different
In system, therefore, in order to guarantee the service life and performance of switch, the material of mandril 6 is preferably ceramic material here, ceramics tool
There are high-melting-point, high rigidity, high-wearing feature, resistance to oxidation or good heat-barrier material, while linear expansion coefficient compares metal
Low, when the temperature varies, ceramics have good dimensional stability.In diaphragm type pressure switch before use, first setting one
A safe pressure value, when applied system pressure is higher or lower than the safe pressure of setting, in base body
Pressure chamber 10 can generate pressurized fluid, enter in pressure sensitive room 3 along pressure chamber 10, the elastic sensing chip in pressure switch
5 experience after pressure can towards the flow direction of pressurized fluid deformation occurs, generate movement, then push and elastic sensing chip 5
The mandril 6 being in contact, mandril 6 are subjected to displacement by promotion, and touch switch connector is switched on or switched off；When system pressure is down to or is risen
When the safety value of setting, elastic 5 momentary reset of sensing chip restores original form, and mandril 6 also sets back, and switchs automatic multiple
Position, to achieve the purpose that control by measuring pressure.
Further, elastic sensing chip 5 can be used any suitable material and be made, such as stainless steel, copper, beryllium, carbon steel, and
And it is designed as the thickness for having relatively high, to bear mechanical stress repeatedly and higher over-voltage without being permanently deformed easily,
And the axial line of the central point and mandril 6 of elastic sensing chip 5 coincides, guaranteeing can be preferably when elastic sensing chip 5 generates deformation
Mandril 6 is pushed to move；The angle of cost, further, the axial line and pressure chamber of mandril 6 are designed and produced from structure
10 axial line is overlapped；Further, the axial line of the axial line with cover board 2 of base body 1 is overlapped；Further, pedestal master
The axial line of body 1 is overlapped with the center line of mandril 6.The outer surface of base body 1 be equipped with external screw thread, for other devices or
Mechanism connection.
The utility model is not only limited to above-mentioned preferred forms, anyone can obtain under the enlightenment of the utility model
Other various forms of products out, however, make any variation in its shape or structure, it is all to have and the utility model phase
Same or similar technical solution, within its protection scope.
Claims (7)
1. a kind of diaphragm type pressure switch comprising switch main body, switch main body include base body (1) and cover board (2), spy
Sign is: space shape of the center to lower recess, between the base body (1) and cover board (2) at the top of the base body (1)
Be equipped at pressure sensitive room (3), in the base body (1) through the base body (1) and with the pressure sensitive room (3)
The pressure chamber (10) of connection is clamped with elastic sensing chip (5) between the base body (1) and cover board (2), and the elastic sensation is answered
The upper surface of piece (5) is connected with mandril (6), and the mandril (6) runs through the cover board (2), and the mandril (6) transmits the elasticity
The deformation that sensing chip (5) generates；The bottom of the cover board (2) includes two protrusions protruded outward (20), the pedestal master
Two sides upwardly extend at the top of body (1) bends inwards again, is formed caulking part (4), two raised (20) upper surfaces and institute
State the lower surface fitting of caulking part (4) bending place, two raised (20) lateral surfaces and the medial surface of the caulking part (4)
Fitting makes the bottoms of the cover board (2), is fixedly connected at the top of elastic sensing chip (5) and base body (1).
2. a kind of diaphragm type pressure switch as described in claim 1, it is characterised in that: the elasticity sensing chip (5) and pedestal
Rubber seal (7) are equipped between the both ends contact-segment of main body (1).
3. a kind of diaphragm type pressure switch as described in claim 1, it is characterised in that: the axial line and pressure of the mandril (6)
The axial line of power chamber (10) is overlapped.
4. a kind of diaphragm type pressure switch as claimed in claim 3, it is characterised in that: the axial line of the base body (1)
It is overlapped with the axial line of the cover board (2).
5. a kind of diaphragm type pressure switch as claimed in claim 4, it is characterised in that: the axial line of the base body (1)
It is overlapped with the center line of the mandril (6).
6. a kind of diaphragm type pressure switch as described in claim 1, it is characterised in that: the outer surface of the base body (1)
Equipped with external screw thread.
7. a kind of diaphragm type pressure switch as described in claim 1, it is characterised in that: the mandril (6) uses ceramic material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820736278.9U CN208478236U (en) | 2018-05-17 | 2018-05-17 | A kind of diaphragm type pressure switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820736278.9U CN208478236U (en) | 2018-05-17 | 2018-05-17 | A kind of diaphragm type pressure switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208478236U true CN208478236U (en) | 2019-02-05 |
Family
ID=65217727
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820736278.9U Expired - Fee Related CN208478236U (en) | 2018-05-17 | 2018-05-17 | A kind of diaphragm type pressure switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208478236U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116884806A (en) * | 2023-09-07 | 2023-10-13 | 常州天利智能控制股份有限公司 | High life impact-resistant nuclear level pressure switch |
-
2018
- 2018-05-17 CN CN201820736278.9U patent/CN208478236U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116884806A (en) * | 2023-09-07 | 2023-10-13 | 常州天利智能控制股份有限公司 | High life impact-resistant nuclear level pressure switch |
| CN116884806B (en) * | 2023-09-07 | 2023-11-14 | 常州天利智能控制股份有限公司 | High life impact-resistant nuclear level pressure switch |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190205 |