CN217035525U - High temperature resistant pressure controller - Google Patents
High temperature resistant pressure controller Download PDFInfo
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- CN217035525U CN217035525U CN202220064650.2U CN202220064650U CN217035525U CN 217035525 U CN217035525 U CN 217035525U CN 202220064650 U CN202220064650 U CN 202220064650U CN 217035525 U CN217035525 U CN 217035525U
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- pressure
- heat insulation
- partition plate
- shell
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Abstract
A high-temperature-resistant pressure controller comprises a controller outer shell, a controller inner shell and a partition plate are arranged in the controller outer shell, a moving contact and a static contact are arranged in the controller inner shell and are connected through a reed, a through hole is formed in the middle of the partition plate, a porcelain rod capable of moving up and down is arranged in the through hole and is located below the reed, the bottom of the porcelain rod props against a pressure measuring diaphragm, a gas fort is arranged below the partition plate, and a heat insulation cavity is arranged between the gas fort and a pressure measuring template. This pressure controller has set up thermal-insulated chamber between pressure measurement diaphragm and gas fort, thermal-insulated intracavity gas pressure receives ambient temperature change's influence to reduce, pressure controller is difficult to become invalid, has improved pressure controller's control effect, and this pressure controller has set up the predeformation material between controller shell and last insulating layer simultaneously, eliminates the change of thermal-insulated intracavity pressure under the high temperature environment through the predeformation material, has strengthened pressure controller's control stability.
Description
Technical Field
The utility model relates to a pressure controller, in particular to a high-temperature-resistant pressure controller.
Background
The pressure controller is a pressure-driven electric switch, and is widely applied to heat pump equipment, air conditioning equipment and other equipment needing to automatically regulate medium pressure and protect a pressure system. Because the existing pressure controller is lack of a heat insulation structure, when the temperature of the surrounding environment rises, the air pressure in the pressure controller is reduced, the pressure controller is disabled, and the control effect of the pressure controller is seriously affected.
SUMMERY OF THE UTILITY MODEL
The utility model provides a high-temperature-resistant pressure controller for solving the defects of the prior art.
A high-temperature-resistant pressure controller comprises a controller shell, a partition plate is arranged in the controller shell, a cover plate is arranged above the partition plate, a controller inner shell is arranged on the cover plate, a moving contact and a static contact are arranged in the controller inner shell and are connected through a reed on the moving contact, the moving contact and the static contact are respectively connected with a first pin piece and a second pin piece which can sequentially penetrate through the controller inner shell and the controller shell and extend outwards, a through hole is formed in the middle of the partition plate, a ceramic rod capable of moving up and down is arranged in the through hole and is positioned below the reed, the bottom of the ceramic rod props against a pressure measuring diaphragm, the pressure measuring diaphragm is positioned on the bottom surface of the partition plate, an air fort connected with the controller shell is arranged below the partition plate, and a heat insulation cavity formed by an upper heat insulation layer and a lower heat insulation layer is arranged between the air fort and a pressure measuring template, the top of the upper heat insulation layer is attached to the pressure measuring diaphragm, a pre-deformation material is arranged between the upper heat insulation layer and the controller shell, and the bottom of the lower heat insulation layer is communicated with the pressure supply pipe on the air fort.
Preferably, an epoxy isolation layer is arranged between the controller outer shell and the controller inner shell.
Preferably, a sealing ring is arranged between the controller shell and the cover plate.
Preferably, the middle part of the reed is provided with a boss, and the boss is positioned right above the porcelain rod.
Preferably, the air fort is in threaded connection with the controller shell.
Preferably, the joint of the upper heat insulation layer and the lower heat insulation layer is provided with airtight rubber.
Has the advantages that: the utility model discloses a high-temperature-resistant pressure controller, which is characterized in that a heat insulation cavity is additionally arranged between a pressure measuring diaphragm and a gas fort, the influence of the temperature change of the ambient environment on the pressure in the heat insulation cavity is reduced due to the existence of an upper heat insulation layer and a lower heat insulation layer, the pressure controller is not easy to lose efficacy, and the control effect of the pressure controller is improved.
Drawings
FIG. 1 is a schematic diagram of a switching pressure controller;
in the figure: 1. the controller comprises a controller shell 11, a first pin piece 12, a second pin piece 13, an epoxy isolation layer 14, a sealing ring 2, a partition plate 21, a through hole 22, a porcelain rod 3, a cover plate 4, a controller inner shell 41, a movable contact 42, a static contact 43, a reed 5, a pressure measuring diaphragm 6, an air fort 7, a heat insulation cavity 71, an upper heat insulation layer 72, a lower heat insulation layer 73, airtight rubber 8, a pre-deformation material 9 and a pressure supply pipe.
Detailed Description
For the purpose of enhancing the understanding of the present invention, the present invention will be described in further detail with reference to the following examples and the accompanying drawings, which are provided for the purpose of illustration only and are not intended to limit the scope of the present invention.
As shown in fig. 1, a high temperature resistant pressure controller includes a controller housing 1, a partition plate 2 is disposed in the controller housing 1, a cover plate 3 is disposed above the partition plate 2, a controller inner housing 4 is disposed on the cover plate 3, a movable contact 41 and a fixed contact 42 are disposed in the controller inner housing 4, the movable contact 41 and the fixed contact 42 are connected through a spring 43 on the movable contact 41, the movable contact 41 and the fixed contact 42 are respectively connected with a first pin 11 and a second pin 12 which can sequentially pass through the controller inner housing 4 and the controller housing 1 and extend outward, a through hole 21 is disposed in the middle of the partition plate 2, a ceramic rod 22 which can move up and down is disposed in the through hole 21, the ceramic rod 22 is disposed below the spring 43, the bottom of the ceramic rod 22 abuts against a pressure measuring diaphragm 5, the pressure measuring diaphragm 5 is disposed on the bottom surface of the partition plate 2, a gas fort 6 connected with the controller housing 1 is disposed below the partition plate 2, a heat insulation cavity 7 surrounded by an upper heat insulation layer 71 and a lower heat insulation layer 72 is arranged between the air fort 6 and the pressure measuring template 5, the top of the upper heat insulation layer 71 is attached to the pressure measuring diaphragm 5, a pre-deformation material 8 is arranged between the upper heat insulation layer 71 and the controller shell 1, and the bottom of the lower heat insulation layer 72 is communicated with a pressure supply pipe 9 on the air fort 6.
In this embodiment, an epoxy isolation layer 13 is disposed between the controller outer shell 1 and the controller inner shell 4.
In this embodiment, a sealing ring 14 is disposed between the controller housing 1 and the cover plate 3.
In this embodiment, the middle of the spring 43 is provided with a boss, and the boss is located right above the porcelain rod 22.
In this embodiment, the air chamber 6 is in threaded connection with the controller housing 1.
In this embodiment, an airtight rubber 83 is provided at the joint of the upper heat insulating layer 81 and the lower heat insulating layer 82.
The working condition is as follows: as shown in fig. 1, the pressure controller is in a closed state, at this time, gas is injected into the heat insulation chamber 7 through the pressure supply pipe 9 on the gas fort 6, the pressure in the heat insulation chamber 7 increases, the pressure measurement diaphragm 5 expands and jacks up the reed 43 through the porcelain rod 22, the movable contact 41 is disconnected from the fixed contact 42, the pressure controller is in a disconnected state, when the ambient temperature rises, the pressure in the heat insulation chamber 7 decreases, at this time, the pre-deformation material 8 expands due to heating and presses the upper heat insulation layer 71 inward, the internal space of the heat insulation chamber 7 decreases, the pressure in the heat insulation chamber 7 increases, and therefore the pressure change in the heat insulation chamber 7 due to the temperature rise is eliminated.
This pressure controller has set up thermal-insulated chamber between pressure measurement diaphragm and gas fort, because the existence of upper and lower insulating layer, thermal-insulated intracavity gas pressure receives the influence of ambient temperature change to reduce, pressure controller is difficult to become invalid, pressure controller's control effect has been improved, this pressure controller has set up the predeformation material between controller shell and last insulating layer simultaneously, eliminate the change of thermal-insulated intracavity pressure under the high temperature environment through the predeformation material, pressure controller's control stability has been strengthened.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and should not be taken as limiting the scope of the present invention, which is intended to cover any modifications, equivalents, improvements, etc. within the spirit and scope of the present invention.
Claims (6)
1. A high-temperature-resistant pressure controller is characterized by comprising a controller outer shell, wherein a partition plate is arranged in the controller outer shell, a cover plate is arranged above the partition plate, a controller inner shell is arranged on the cover plate, a moving contact and a static contact are arranged in the controller inner shell, the moving contact and the static contact are connected through a reed on the moving contact, the moving contact and the static contact are respectively connected with a first pin piece and a second pin piece which can sequentially penetrate through the controller inner shell and the controller outer shell and extend outwards, a through hole is formed in the middle of the partition plate, a ceramic rod capable of moving up and down is arranged in the through hole and located below the reed, the bottom of the ceramic rod abuts against a pressure measuring diaphragm, the pressure measuring diaphragm is located on the bottom surface of the partition plate, a gas fort connected with the controller outer shell is arranged below the partition plate, and a heat insulation cavity formed by an upper heat insulation layer and a lower heat insulation layer is arranged between the gas fort and a template, the top of the upper heat insulation layer is attached to the pressure measuring diaphragm, a pre-deformation material is arranged between the upper heat insulation layer and the controller shell, and the bottom of the lower heat insulation layer is communicated with the pressure supply pipe on the air fort.
2. The high temperature resistant pressure controller of claim 1, wherein an epoxy isolation layer is disposed between the controller outer shell and the controller inner shell.
3. The high temperature resistant pressure controller of claim 1, wherein a seal ring is disposed between the controller housing and the cover plate.
4. The high temperature resistant pressure controller of claim 1, wherein the spring plate is provided with a boss at the middle part, and the boss is positioned right above the porcelain rod.
5. The high temperature resistant pressure controller of claim 1, wherein the gas castle is in threaded connection with the controller housing.
6. The high temperature resistant pressure controller of claim 1, wherein the joint of the upper and lower insulating layers is provided with airtight rubber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220064650.2U CN217035525U (en) | 2022-01-12 | 2022-01-12 | High temperature resistant pressure controller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220064650.2U CN217035525U (en) | 2022-01-12 | 2022-01-12 | High temperature resistant pressure controller |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217035525U true CN217035525U (en) | 2022-07-22 |
Family
ID=82444276
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220064650.2U Active CN217035525U (en) | 2022-01-12 | 2022-01-12 | High temperature resistant pressure controller |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217035525U (en) |
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2022
- 2022-01-12 CN CN202220064650.2U patent/CN217035525U/en active Active
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