CN220708614U - Ceramic air conditioner pressure sensor - Google Patents
Ceramic air conditioner pressure sensor Download PDFInfo
- Publication number
- CN220708614U CN220708614U CN202322313751.6U CN202322313751U CN220708614U CN 220708614 U CN220708614 U CN 220708614U CN 202322313751 U CN202322313751 U CN 202322313751U CN 220708614 U CN220708614 U CN 220708614U
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- China
- Prior art keywords
- ceramic
- sensor
- protective shell
- absolute
- pressure sensor
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- 239000000919 ceramic Substances 0.000 title claims abstract description 49
- 230000001681 protective effect Effects 0.000 claims abstract description 34
- 239000004033 plastic Substances 0.000 claims abstract description 28
- 229920003023 plastic Polymers 0.000 claims abstract description 28
- 238000007789 sealing Methods 0.000 claims abstract description 28
- 239000004809 Teflon Substances 0.000 claims abstract description 7
- 229920006362 Teflon® Polymers 0.000 claims abstract description 7
- 229910052802 copper Inorganic materials 0.000 claims description 20
- 239000010949 copper Substances 0.000 claims description 20
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 19
- 238000003466 welding Methods 0.000 claims description 12
- 229910001220 stainless steel Inorganic materials 0.000 claims description 10
- 239000010935 stainless steel Substances 0.000 claims description 10
- 238000004378 air conditioning Methods 0.000 claims description 8
- 239000000565 sealant Substances 0.000 claims description 3
- 230000000149 penetrating effect Effects 0.000 claims description 2
- 238000010438 heat treatment Methods 0.000 abstract description 11
- 238000009423 ventilation Methods 0.000 abstract description 11
- RVCKCEDKBVEEHL-UHFFFAOYSA-N 2,3,4,5,6-pentachlorobenzyl alcohol Chemical compound OCC1=C(Cl)C(Cl)=C(Cl)C(Cl)=C1Cl RVCKCEDKBVEEHL-UHFFFAOYSA-N 0.000 abstract description 8
- 238000000034 method Methods 0.000 abstract description 8
- 239000003292 glue Substances 0.000 abstract description 5
- 229910010293 ceramic material Inorganic materials 0.000 abstract description 4
- 238000010923 batch production Methods 0.000 abstract description 3
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 description 4
- 229910052731 fluorine Inorganic materials 0.000 description 4
- 239000011737 fluorine Substances 0.000 description 4
- 238000005057 refrigeration Methods 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 3
- 239000003507 refrigerant Substances 0.000 description 2
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 238000004544 sputter deposition Methods 0.000 description 1
Landscapes
- Measuring Fluid Pressure (AREA)
Abstract
The utility model discloses a ceramic air conditioner pressure sensor, which comprises a protective shell, wherein a plastic connector is fixedly arranged on the right side of the protective shell, and an absolute ceramic sensor, a PCBA board and an FPC wire are arranged in a cavity formed by the plastic connector and the interior of the protective shell. The absolute pressure ceramic sensor is integrally used for replacing a common pressure sensor, the sensor is mainly prepared from a ceramic material with low price, the price is lower than that of other sensors, the process is mature, the requirements on process equipment are not strict, and batch production can be carried out, so that the control of the batch purchasing cost of heating and ventilation equipment is facilitated; meanwhile, the inside of the pressure sensor is fully filled with glue, and an O-shaped sealing ring and a teflon sealing check ring are additionally arranged on the opposite surface of the absolute ceramic sensor and the protective shell, so that the overall tightness of the sensor can be ensured, and the phenomenon of Freon internal leakage is avoided.
Description
Technical Field
The utility model belongs to the technical field of accessories of heating, ventilation and refrigeration systems, and particularly relates to a ceramic air conditioner pressure sensor.
Background
At present, a pressure sensor is used in a high-pressure heating, ventilation and refrigeration system in the market, and the pressure sensor is used for monitoring the pressure of a refrigerant in the heating, ventilation and high-pressure air conditioning system.
At present, a pressure sensor in an air conditioner refrigerating system mainly adopts the following modes:
(1) the diffusion silicon oil-filled core sensor has no cost advantage, the sensor is sealed by adopting an O-shaped ring, and the Freon in the sensor has serious internal leakage;
(2) the sputtering film pressure sensor adopts a welding structure, has good sealing performance, but has high manufacturing cost and is not beneficial to the control of the batch purchasing cost of heating and ventilation equipment.
In view of this, a ceramic air conditioner pressure sensor is proposed.
Disclosure of Invention
The utility model aims at: in order to solve the above-mentioned problem, a ceramic air conditioner pressure sensor is provided.
The technical scheme adopted by the utility model is as follows: the ceramic air conditioner pressure sensor comprises a protective shell, wherein a plastic connector is fixedly arranged on the right side of the protective shell, and an absolute ceramic sensor, a PCBA board and an FPC wire are arranged in a cavity formed by the plastic connector and the interior of the protective shell;
sealant is uniformly filled in gaps among the absolute ceramic sensor, the PCBA board, the FPC wire and the cavity;
and a copper tube is arranged on the left side of the protective shell.
In a preferred embodiment, an O-ring is disposed between the plastic connector and the opposing face of the ceramic sensor, and a teflon sealing collar is disposed at the outer end of the O-ring, and is also disposed between the plastic connector and the opposing face of the ceramic sensor.
In a preferred embodiment, a stainless steel welding ring is arranged between the copper tube and the protective shell, and the stainless steel welding ring is fixed with the copper tube and the copper tube is fixed with the protective shell in a welding mode.
In a preferred embodiment, a plurality of pins are arranged in the plastic connector, the pins and the PCBA are electrically connected together through FPC wires, and the plastic connector and the protective housing are fixed together through riveting.
In a preferred embodiment, the stainless steel welding ring and the center of the left wall of the protective shell are respectively provided with a pressure inlet in a penetrating way, and the ceramic pressure sensing thin plate in the absolute pressure ceramic sensor is positioned at the inner side of the pressure inlet.
In a preferred embodiment, a second O-ring is mounted in interference between the outer end face of the plastic connector and the inner wall of the protective housing.
In summary, due to the adoption of the technical scheme, the beneficial effects of the utility model are as follows:
1. in the utility model, an absolute ceramic sensor is integrally used to replace a common pressure sensor, and the sensor is mainly prepared from a ceramic material with low price, is lower in price than other sensors, has mature process, has no strict requirements on process equipment and can be produced in batches, thereby being beneficial to controlling the batch purchasing cost of heating and ventilation equipment.
2. In the utility model, the glue filling treatment is fully performed in the pressure sensor, and the O-shaped sealing ring and the teflon sealing check ring are additionally arranged on the opposite surface of the absolute ceramic sensor and the protective shell, so that the integral tightness of the sensor can be ensured, and the phenomenon of Freon internal leakage is avoided.
3. According to the utility model, the O-shaped sealing ring and the teflon sealing retainer ring are additionally arranged, so that the sealing performance is realized, meanwhile, the direct contact between the absolute ceramic sensor and the metal shell is isolated, and the anti-lightning protection of the sensor can be realized.
Drawings
FIG. 1 is a schematic cross-sectional plan view of the entire structure of the present utility model;
fig. 2 is an enlarged schematic diagram of the structure at a in fig. 1.
The marks in the figure: 1-copper pipe, 2-stainless steel weld ring, 3-protective housing, 4-plastics connector, 5-pressure inlet, 6-O type sealing washer, 7-indisputable fluorine dragon sealing retainer ring, 8-absolute pressure ceramic sensor, 9-second O type sealing washer, 10-PCBA board, 11-sealant, 12-FPC line.
Detailed Description
The present utility model will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present utility model more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.
Referring to fig. 1-2, a ceramic air conditioner pressure sensor comprises a protective shell 3, wherein a plastic connector 4 is fixedly arranged on the right side of the protective shell 3, an absolute ceramic sensor 8, a PCBA board 10 and an FPC wire 12 are arranged in a cavity formed by the plastic connector 4 and the interior of the protective shell 3, sealing glue 11 is uniformly filled in gaps among the absolute ceramic sensor 8, the PCBA board 10 and the FPC wire 12 and the cavity, glue filling treatment is performed in the pressure sensor, the integral tightness of the sensor can be ensured, and the phenomenon of Freon internal leakage is avoided.
The absolute pressure ceramic sensor 8 is integrally used to replace a common pressure sensor, the sensor is mainly prepared from a ceramic material with low price, the price is lower than that of other sensors, the process is mature, the requirements on process equipment are not strict, and batch production can be carried out, so that the control of the batch purchasing cost of heating and ventilation equipment is facilitated.
It should be noted that, the absolute ceramic sensor 8 (including the ceramic pressure sensing sheet, the ceramic base, and the circuit portion) is a sensor implemented in the prior art, and the specific structure is not described in detail.
In this embodiment, the left side of the protective housing 3 is provided with the copper tube 1, and the copper tube 1 is connected with a refrigerant pipeline in a heating, ventilation and high-pressure air conditioning system, and a medium after connection enters the copper tube 1 and simultaneously enters a pressure sensing surface of the absolute pressure ceramic sensor 8 along the copper tube 1, so that the pressure acquisition operation is completed.
The copper tube 1 is convenient to weld with an air-conditioning copper tube, and the copper tube 1 has the characteristics of high pressure resistance, high temperature resistance and low temperature resistance, so that the service life is greatly prolonged.
In this embodiment, be provided with O type sealing washer 6,O type sealing washer 6's outer end between the opposite face of plastics connector 4 and absolute ceramic sensor 8 and be provided with indisputable fluorine dragon sealing washer 7, indisputable fluorine dragon sealing washer 7 also is located between the opposite face of plastics connector 4 and absolute ceramic sensor 8, and O type sealing washer 6 and indisputable fluorine dragon sealing washer 6 that add can isolate absolute ceramic sensor 8 and the direct contact of protective housing 3 when realizing sealing performance, can play the key role to the holistic anti lightning protection of sensor.
In this embodiment, be provided with stainless steel weld ring 2 in the middle of copper pipe 1 and the protecting sheathing 3, all fix together through the welding mode between stainless steel weld ring 2 and copper pipe 1 and the protecting sheathing 3, add the weld ring between copper pipe 1 and protecting sheathing 3, accomplish the connection between copper pipe 1 and the protecting sheathing 3 through the welding mode, sealing performance is better.
In this embodiment, a plurality of pins are disposed in the plastic connector 4, the pins are electrically connected with the PCBA board 10 through the FPC line 12, the pins are connected with a control end (not shown in the figure) of the heating, ventilation and refrigeration system through the plastic connector 4, the plastic connector 4 is used for transmitting the electrical performance inside the sensor to the outside, protecting the absolute ceramic sensor, and the signals of the PCBA board 10 can be transmitted to the pins through the FPC line 12, and then the signals are transmitted to the control end of the connected heating, ventilation and refrigeration system through the pins.
The plastic connector 4 and the protective shell 3 are fixed together in a riveting mode, and the plastic connector 4 and the protective shell 3 can be connected in a riveting mode to ensure the connection strength.
In this embodiment, the stainless steel welding ring 2 and the left wall center of the protective housing 3 are provided with a pressure inlet 5, the ceramic pressure sensing thin plate in the absolute pressure ceramic sensor 8 is located at the inner side of the pressure inlet 5, and the medium enters the copper tube 1 and enters the ceramic pressure sensing thin plate along the pressure inlet 5, so that the pressure collecting operation can be completed.
In this embodiment, the second O-ring 9 is installed between the outer end surface of the plastic connector 4 and the inner wall of the protective housing 3 in an interference manner, and the tightness between the plastic connector 4 and the protective housing 3 can be improved through the second O-ring 9.
The absolute pressure ceramic sensor 8 is integrally used for replacing a common pressure sensor, the sensor is mainly prepared from a ceramic material with low price, the price is lower than that of other sensors, the process is mature, the requirements on process equipment are not strict, and batch production can be carried out, so that the control of the batch purchasing cost of heating and ventilation equipment is facilitated.
Meanwhile, the inside of the pressure sensor is fully filled with glue, and an O-shaped sealing ring and a teflon sealing check ring are additionally arranged on the opposite surface of the absolute ceramic sensor and the protective shell, so that the overall tightness of the sensor can be ensured, and the phenomenon of Freon internal leakage is avoided.
The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the utility model.
Claims (6)
1. A ceramic air conditioner pressure sensor, comprising a protective casing (3), characterized in that: the right side of the protective shell (3) is fixedly provided with a plastic connector (4), and a cavity formed by the plastic connector (4) and the interior of the protective shell (3) is internally provided with an absolute ceramic sensor (8), a PCBA (printed circuit board) 10 and an FPC (flexible printed circuit) wire (12);
the gaps among the absolute ceramic sensor (8), the PCBA (10), the FPC (12) and the cavity are uniformly filled with sealant (11);
the left side of the protective shell (3) is provided with a copper tube (1).
2. A ceramic air conditioning pressure sensor as set forth in claim 1 wherein: an O-shaped sealing ring (6) is arranged between the opposite surfaces of the plastic connector (4) and the absolute ceramic sensor (8), a teflon sealing check ring (7) is arranged at the outer end of the O-shaped sealing ring (6), and the teflon sealing check ring (7) is also arranged between the opposite surfaces of the plastic connector (4) and the absolute ceramic sensor (8).
3. A ceramic air conditioning pressure sensor as set forth in claim 1 wherein: stainless steel welding rings (2) are arranged between the copper tubes (1) and the protective shell (3), and the stainless steel welding rings (2) are fixed with the copper tubes (1) and the protective shell (3) in a welding mode.
4. A ceramic air conditioning pressure sensor as set forth in claim 1 wherein: the plastic connector (4) is internally provided with a plurality of pins, the pins are electrically connected with the PCBA (10) through FPC (flexible printed circuit) wires (12), and the plastic connector (4) and the protective housing (3) are fixed together through riveting.
5. A ceramic air conditioning pressure sensor as set forth in claim 3 wherein: the stainless steel welding ring (2) and the left wall center of the protective housing (3) are provided with pressure inlet (5) in a penetrating mode, and the ceramic pressure sensing thin plate in the absolute ceramic sensor (8) is located at the inner side of the pressure inlet (5).
6. A ceramic air conditioning pressure sensor as set forth in claim 1 wherein: a second O-shaped sealing ring (9) is installed between the outer end face of the plastic connector (4) and the inner wall of the protective shell (3) in an interference mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322313751.6U CN220708614U (en) | 2023-08-28 | 2023-08-28 | Ceramic air conditioner pressure sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322313751.6U CN220708614U (en) | 2023-08-28 | 2023-08-28 | Ceramic air conditioner pressure sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220708614U true CN220708614U (en) | 2024-04-02 |
Family
ID=90449040
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322313751.6U Active CN220708614U (en) | 2023-08-28 | 2023-08-28 | Ceramic air conditioner pressure sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220708614U (en) |
-
2023
- 2023-08-28 CN CN202322313751.6U patent/CN220708614U/en active Active
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