CN204154404U - The device for monitoring temperature of compressor oil - Google Patents
The device for monitoring temperature of compressor oil Download PDFInfo
- Publication number
- CN204154404U CN204154404U CN201420441631.2U CN201420441631U CN204154404U CN 204154404 U CN204154404 U CN 204154404U CN 201420441631 U CN201420441631 U CN 201420441631U CN 204154404 U CN204154404 U CN 204154404U
- Authority
- CN
- China
- Prior art keywords
- temperature
- hole
- temperature sensor
- installation
- sensing pipe
- 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.)
- Active
Links
Landscapes
- Applications Or Details Of Rotary Compressors (AREA)
Abstract
The utility model discloses a kind of device for monitoring temperature of compressor oil, comprise the temperature module for detecting oil temperature and oil groove housing, oil groove housing offers installation through hole, the temperature module comprises temperature sensor and temperature-sensing pipe, temperature-sensing pipe runs through to install through hole and be fixed on to be installed in through hole, seal is provided with between temperature-sensing pipe and installation through hole, one end that temperature-sensing pipe has from being positioned at oil groove hull outside extends to the one end being positioned at oil groove case inside the blind hole offered, temperature sensor is arranged on the bottom of blind hole, temperature-sensing pipe is provided with away from one end of temperature sensor the water joint supplying the signal wire of temperature sensor to pass, temperature sensor is electrically connected with outside control system by signal wire.A kind of device for monitoring temperature of compressor oil is provided, by temperature sensor being arranged on the inside of compressor, making temperature sensor fixing more reliable, making compressor outward appearance more attractive in appearance, by directly being contacted with machine oil by temperature-sensing pipe, make temperature detection result more accurate.
Description
Technical field
The utility model relates to the technical field of compressor of air conditioner, particularly relates to a kind of device for monitoring temperature of compressor oil.
Background technology
Along with the raising of people's living standard, air-conditioning has become requisite equipment in people's live and work gradually.It is most of that air-conditioning equipment mainly comprises compressor, condensing unit, restriction device and vaporising device four, wherein, compressor is the drive part of air-conditioning equipment, be equivalent to the heart of the mankind, the running effect of compressor directly will affect the output effect of air-conditioning equipment, therefore the various duty parameters of compressor in operation process all need by monitor closely, to ensure the normal of air-conditioning equipment and high-efficiency operation.For screw compressor, oil temperature in oil groove be air-conditioning equipment running and control procedure in an important parameter, it can assist accurately to judge that can compressor start, whether have back liquid etc., and then provides Data support to control system to control adjustment such as compressor load ability, expansion valve opening and water pumps.
Current compressor in the design process major part does not arrange relevant detection architecture for oil temperature monitoring, therefore compressor in use otherwise do not arrange the pick-up unit of oil temperature, to the temperature of machine oil without any surveillance and control measure, otherwise exactly the pick-up unit of oil temperature is affixed on bottom compressor or side, not only testing result error is large for this pick-up unit being affixed on outside surface, and easily come off in compressor operation process and cause losing efficacy, make the control system of air-conditioning equipment produce false judgment.
Based on above-mentioned situation, producer provides a kind of and fixes device for monitoring temperature that the is reliable and compressor oil that accuracy of detection is high.
Utility model content
An object of the present utility model is: the device for monitoring temperature providing a kind of compressor oil, by temperature sensor being arranged on the inside of compressor, makes temperature sensor fixing more reliable.
Another object of the present utility model is: the device for monitoring temperature providing a kind of compressor oil, by directly being contacted with machine oil by temperature-sensing pipe, makes temperature detection result more accurate.
For reaching this object, the utility model by the following technical solutions:
A kind of device for monitoring temperature of compressor oil, comprise the temperature module for detecting oil temperature and the oil groove housing for fixing described the temperature module, described oil groove housing offers installation through hole, described the temperature module comprises temperature sensor and the temperature-sensing pipe for fixing described temperature sensor, described temperature-sensing pipe runs through described installation through hole and is fixed in described installation through hole inside the lateral of described oil groove housing, seal is provided with between described temperature-sensing pipe and described installation through hole, one end that described temperature-sensing pipe has from being positioned at described oil groove hull outside extends to the one end being positioned at described oil groove case inside the blind hole offered, described temperature sensor is fixedly installed on the bottom of described blind hole, described temperature-sensing pipe is provided with away from one end of described temperature sensor the water joint supplying the signal wire of described temperature sensor to pass, described temperature sensor is electrically connected with outside control system by described signal wire.
Preferably, the bottom of described blind hole and described temperature-sensing pipe equal the wall thickness of described temperature-sensing pipe away from the distance of one end end face of described water joint.
Preferably, one end of described temperature sensor non-connection signal line is positioned at the side of the bottom near described blind hole.
Preferably, described control system is except receiving the oil temperature signal of described temperature sensor, also receive the signals such as the water moderate pressure of compressor simultaneously, and by the comprehensive analysis of described control system and judgement, and then correctly regulate the load of compressor, regulate the aperture of electric expansion valve, regulate water pump frequency and other control signal, to ensure the normal operation of compressor.
Particularly, by arranging described temperature-sensing pipe, and described temperature-sensing pipe is inserted the inside of described oil groove housing, described temperature sensor is wrapped up by machine oil, and it is tightr with the distance of machine oil, effectively improve the accuracy of detection to oil temperature, ensure that correct judgement and the control of control system.In addition, described temperature sensor is arranged on the inside of described oil groove housing, avoid because of external impact or vibration cause described temperature sensor come off lost efficacy risk, make compressor more attractive in appearance simultaneously.
As the preferred technical scheme of one, described installation through hole is arranged on the sidewall of described oil groove housing, and the distance of the center line of described installation through hole and the base plate medial surface of described oil groove housing equals 1/4 to 1/2 of the height of described sidewall; Described temperature-sensing pipe equals 1/3 to 2/3 of the distance between the medial surface of two relative described sidewalls away from one end end face and the distance of the medial surface of the described sidewall at described installation through hole place of described water joint.
Preferably, the distance of the center line of described installation through hole and the base plate medial surface of described oil groove housing equals 1/4 of the height of described sidewall.The machine oil height filled in described oil groove housing equals 3/4 of the height of described sidewall.Described temperature-sensing pipe equals 1/3 of the distance between the medial surface of two relative described sidewalls away from one end end face and the distance of the medial surface of the described sidewall at described installation through hole place of described water joint.
Particularly, by described temperature-sensing pipe being arranged on the above-mentioned particular location in described oil groove housing, ensure that described temperature sensor is wrapped up completely by machine oil, and described temperature sensor can experience the temperature of machine oil equably from all directions, thus more accurately can monitor the temperature variation of machine oil.
As the preferred technical scheme of one, described installation through hole is arranged on the base plate of described oil groove housing, and center line and the distance of the medial surface of described one of them sidewall of oil groove housing of described installation through hole equal 1/3 to 2/3 of the distance between the medial surface of two relative described sidewalls.Described temperature-sensing pipe equals 1/4 to 1/2 of the height of described sidewall away from the distance of one end end face of described water joint and the medial surface of described base plate.
Preferably, center line and the distance of the medial surface of sidewall described in one of them of described installation through hole equal 1/3 of the distance between the medial surface of two relative described sidewalls.Described temperature-sensing pipe equals 1/4 of the height of described sidewall away from the distance of one end end face of described water joint and the medial surface of described base plate.The machine oil height filled in described oil groove housing equals 3/4 of the height of described sidewall.
Particularly, if the sidewall direction installing space of described oil groove housing is not enough, just described temperature-sensing pipe can be arranged on described base plate.By described temperature-sensing pipe being arranged on the above-mentioned particular location in described oil groove housing, ensure that described temperature sensor is wrapped up completely by machine oil, and described temperature sensor can experience the temperature of machine oil equably from all directions, thus more accurately can monitor the temperature variation of machine oil.
As the preferred technical scheme of one, described temperature-sensing pipe comprises the test section, installation portion and the connecting portion that connect successively, described blind hole runs through described connecting portion and described installation portion and extends to described test section one end away from described installation portion, described temperature sensor is arranged on the inside of described test section, and the gap filling between described temperature sensor and described blind hole has heat-sensitive glue.
Particularly, by arranging described heat-sensitive glue, described temperature sensor and described temperature-sensing pipe are fitted more tight, heat-transfer effect is more evenly reliable, effectively improves the accuracy of detection to oil temperature.In addition, described heat-sensitive glue is effectively fixed described temperature sensor, avoids described temperature sensor in compressor operation process because vibration causes displacement even to damage.
As the preferred technical scheme of one, the excircle of described installation portion is provided with installation screw thread, the path of described installation screw thread is greater than the external diameter of described test section, the inner periphery of described installation through hole is provided with the screw thread corresponding with described installation screw thread, and described seal is arranged between the screw thread of described installation screw thread and described installation through hole.
Particularly, the path of described installation screw thread is greater than the external diameter of described test section, effectively ensure that described test section can run through described installation through hole.
As the preferred technical scheme of one, described connecting portion is hexagonal column, the inscribe diameter of a circle of described hexagon prism is greater than the external diameter of described installation portion, and described connecting portion offers threaded hole away from one end of described installation portion, and described water joint is fixedly installed in described threaded hole by threaded post.
Particularly, the inscribe diameter of a circle of described hexagon prism is greater than the external diameter of described installation portion, effectively ensure that described temperature-sensing pipe can not pass completely through described installation through hole, avoids the risk that described temperature-sensing pipe drops because of collision in described oil groove housing.
As the preferred technical scheme of one, described water joint axially offers along it cable-through hole passed for described signal wire, and the diameter of described cable-through hole is a bit larger tham the external diameter of described signal wire.
As the preferred technical scheme of one, described temperature sensor is PT temperature sensor or NTC temperature sensor.
Particularly, PT temperature sensor is platinum sensor, and PT temperature sensor has positive temperature coefficient (PTC), and namely its resistance value can raise along with the rising of temperature.
Particularly, NTC temperature sensor is a kind of thermal resistor adopting semiconductor ceramics to make, and NTC temperature sensor has negative temperature coefficient, and namely its resistance value can reduce along with the rising of temperature.
As the preferred technical scheme of one, described temperature-sensing pipe adopts red copper material to make, and red copper has good heat conductivility, effectively ensure that the accuracy of detection of temperature sensor to oil temperature.
As the preferred technical scheme of one, described seal is resistant to elevated temperatures unsintered tape.In the course of work of compressor, the temperature of machine oil can raise, and uses resistant to elevated temperatures unsintered tape can delay the aging speed of seal as seal, and improves sealing effectiveness.
Preferably, described seal is the high temperature resistant unsintered tape with corrosion resistance of refrigeration fluorine system-specific.
The beneficial effects of the utility model are: the device for monitoring temperature providing a kind of compressor oil, by temperature sensor being arranged on the inside of compressor, making temperature sensor fixing more reliable, making compressor outward appearance more attractive in appearance; By directly being contacted with machine oil by temperature-sensing pipe, make temperature detection result more accurate.
Accompanying drawing explanation
According to drawings and embodiments the utility model is described in further detail below.
Fig. 1 is the structural representation of the device for monitoring temperature of the compressor oil described in embodiment.
In Fig. 1:
1, oil groove housing; 11, sidewall; 12, base plate;
2, temperature sensor; 21, signal wire;
3, temperature-sensing pipe; 31, blind hole; 32, test section; 33, installation portion; 34, connecting portion;
4, heat-sensitive glue;
5, water joint;
6, control system;
7, pasta.
Embodiment
The technical solution of the utility model is further illustrated by embodiment below in conjunction with accompanying drawing.
Embodiment one:
As shown in Figure 1, a kind of device for monitoring temperature of compressor oil, comprise the temperature module for detecting oil temperature and the oil groove housing 1 for fixing described the temperature module, oil groove housing 1 comprise base plate 12 and be arranged on base plate 12 four ends and perpendicular to four sidewalls 11 of base plate 12.Distance between the medial surface of two relative sidewalls 11 is L, is filled with machine oil in oil groove housing 1, and the pasta 7 of machine oil is H with the distance of the medial surface of base plate 12.In the present embodiment, the sidewall 11 of oil groove housing 1 offers installation through hole.
Described the temperature module comprises temperature sensor 2 and the temperature-sensing pipe 3 for fixed temperature sensor 2, and in the present embodiment, temperature sensor 2 is PT temperature sensors, and temperature sensor 2 has positive temperature coefficient (PTC), and namely its resistance value can raise along with the rising of temperature.Temperature-sensing pipe 3 adopts red copper material to make, and red copper has good heat conductivility, effectively ensure that the accuracy of detection of temperature sensor 2 pairs of oil temperatures.
Temperature-sensing pipe 3 runs through described installation through hole and is fixed in described installation through hole inside the lateral of oil groove housing 1, is provided with seal between temperature-sensing pipe 3 and described installation through hole.In the present embodiment, described seal is the resistant to elevated temperatures unsintered tape with corrosion resistance of refrigeration fluorine system-specific, in the course of work of compressor, the temperature of machine oil can raise, use resistant to elevated temperatures unsintered tape can delay the aging speed of seal as seal, and improve sealing effectiveness.
Temperature-sensing pipe 3 has and extends from the one end be positioned at outside oil groove housing 1 to the one end be positioned at inside oil groove housing 1 blind hole 31 offered, temperature sensor 2 is fixedly installed on the bottom of blind hole 31, and one end of the non-connection signal line 21 of temperature sensor 2 is positioned at the side of the bottom near blind hole 31.Temperature-sensing pipe 3 is provided with water joint 5 away from one end of temperature sensor 2, and water joint 5 axially offers along it cable-through hole passed for signal wire 21, and the diameter of described cable-through hole is a bit larger tham the external diameter of signal wire 21.The bottom of blind hole 31 and temperature-sensing pipe 3 equal the wall thickness of temperature-sensing pipe 3 away from the distance of one end end face of water joint 5.Temperature sensor 2 is electrically connected with outside control system 6 by signal wire 21.
In the present embodiment, described installation through hole is arranged on the sidewall 11 of oil groove housing 1, the height H of the machine oil filled in oil groove housing 1 equals 3/4 of the height of sidewall 11, and the distance of the center line of described installation through hole and base plate 12 medial surface of oil groove housing 1 equals 1/3H.Temperature-sensing pipe 3 equals 1/3 of the distance between the medial surface of two relative sidewalls 11 away from one end end face and the distance of the medial surface of the sidewall 11 at described installation through hole place of water joint 5, namely equals 1/3L.Particularly, by temperature-sensing pipe 3 being arranged on the above-mentioned particular location in oil groove housing 1, ensure that temperature sensor 2 is wrapped up completely by machine oil, and temperature sensor 2 can experience the temperature of machine oil equably from all directions, thus more accurately can monitor the temperature variation of machine oil.
Temperature-sensing pipe 3 comprises the test section 32, installation portion 33 and the connecting portion 34 that connect successively, blind hole 31 runs through connecting portion 34 and installation portion 33 and extends to test section 32 one end away from installation portion 33, temperature sensor 2 is arranged on the inside of test section 32, and the gap filling between temperature sensor 2 and blind hole 31 has heat-sensitive glue 4.By arranging heat-sensitive glue 4, temperature sensor 2 and temperature-sensing pipe 3 are fitted more tight, heat-transfer effect is more evenly reliable, effectively improves the accuracy of detection to oil temperature.In addition, heat-sensitive glue 4 pairs of temperature sensors 2 are effectively fixed, and avoid temperature sensor 2 in compressor operation process because vibration causes displacement even to damage.
The excircle of installation portion 33 is provided with installation screw thread, the path of described installation screw thread is greater than the external diameter of test section 32, effectively ensure that test section 32 can run through described installation through hole.The inner periphery of described installation through hole is provided with the screw thread corresponding with described installation screw thread, and described unsintered tape is arranged between the screw thread of described installation screw thread and described installation through hole.
Connecting portion 34 is hexagonal columns, and the inscribe diameter of a circle of described hexagon prism is greater than the external diameter of installation portion 33, effectively ensure that temperature-sensing pipe 3 can not pass completely through described installation through hole, avoids the risk that temperature-sensing pipe 3 drops because of collision in oil groove housing 1.Connecting portion 34 offers threaded hole away from one end of installation portion 33, and water joint 5 is fixedly installed in described threaded hole by threaded post.
Control system 6 is except receiving the oil temperature signal of temperature sensor 2, also receive the signals such as the water moderate pressure of compressor simultaneously, and pass through comprehensive analysis and the judgement of control system 6, and then correctly regulate the load of compressor, regulate the aperture of electric expansion valve, regulate water pump frequency and other control signal, to ensure the normal operation of compressor.
Particularly, by arranging temperature-sensing pipe 3, and temperature-sensing pipe 3 is inserted the inside of oil groove housing 1, temperature sensor 2 is wrapped up by machine oil, and more tight with the distance of machine oil, effectively improve the accuracy of detection to oil temperature, ensure that correct judgement and the control of control system 6.In addition, temperature sensor 2 is arranged on the inside of oil groove housing 1, avoid because of external impact or vibration cause temperature sensor 2 come off lost efficacy risk, make compressor more attractive in appearance simultaneously.
Embodiment two:
The present embodiment is identical with the structure major part of embodiment one, and the difference of the present embodiment and embodiment one is:
Temperature sensor 2 is NTC temperature sensors, and particularly, temperature sensor 2 is a kind of thermal resistors adopting semiconductor ceramics to make, and temperature sensor 2 has negative temperature coefficient, and namely its resistance value can reduce along with the rising of temperature.
Described installation through hole is arranged on the base plate 12 of oil groove housing 1, and center line and the distance of the medial surface of one of them sidewall 11 of described installation through hole equal 1/3 of the distance between the medial surface of two relative sidewalls 11, namely equal 1/3L.The height H of the machine oil filled in oil groove housing 1 equals 3/4 of the height of sidewall 11, and temperature-sensing pipe 3 equals 1/3H away from the distance of one end end face of water joint 5 and the medial surface of base plate 12.By temperature-sensing pipe 3 being arranged on the above-mentioned particular location in oil groove housing 1, ensure that temperature sensor 2 is wrapped up completely by machine oil, and temperature sensor 2 can experience the temperature of machine oil equably from all directions, thus more accurately can monitor the temperature variation of machine oil.
It is to be understood that; above-mentioned embodiment is only preferred embodiment of the present utility model and institute's application technology principle; in technical scope disclosed in the utility model; the change that any those skilled in the art of being familiar with easily expect or replacement, all should be encompassed in protection domain of the present utility model.
Claims (10)
1. the device for monitoring temperature of a compressor oil, it is characterized in that, comprise the temperature module for detecting oil temperature and the oil groove housing for fixing described the temperature module, described oil groove housing offers installation through hole, described the temperature module comprises temperature sensor and temperature-sensing pipe, described temperature-sensing pipe runs through described installation through hole and is fixed in described installation through hole, seal is provided with between described temperature-sensing pipe and described installation through hole, one end that described temperature-sensing pipe has from being positioned at described oil groove hull outside extends to the one end being positioned at described oil groove case inside the blind hole offered, described temperature sensor is fixedly installed on the bottom of described blind hole, described temperature-sensing pipe is provided with away from one end of described temperature sensor the water joint supplying the signal wire of described temperature sensor to pass, described temperature sensor is electrically connected with outside control system by described signal wire.
2. the device for monitoring temperature of compressor oil according to claim 1, it is characterized in that, described installation through hole is arranged on the sidewall of described oil groove housing, and the distance of the center line of described installation through hole and the base plate medial surface of described oil groove housing equals 1/4 to 1/2 of the height of described sidewall; Described temperature-sensing pipe equals 1/3 to 2/3 of the distance between the medial surface of two relative described sidewalls away from one end end face and the distance of the medial surface of the described sidewall at described installation through hole place of described water joint.
3. the device for monitoring temperature of compressor oil according to claim 1, it is characterized in that, described installation through hole is arranged on the base plate of described oil groove housing, and center line and the distance of the medial surface of described one of them sidewall of oil groove housing of described installation through hole equal 1/3 to 2/3 of the distance between the medial surface of two relative described sidewalls; Described temperature-sensing pipe equals 1/4 to 1/2 of the height of described sidewall away from the distance of one end end face of described water joint and the medial surface of described base plate.
4. the device for monitoring temperature of the compressor oil according to any one of Claims 2 or 3, it is characterized in that, described temperature-sensing pipe comprises the test section, installation portion and the connecting portion that connect successively, described blind hole runs through described connecting portion and described installation portion and extends to described test section one end away from described installation portion, described temperature sensor is arranged on the inside of described test section, and the gap filling between described temperature sensor and described blind hole has heat-sensitive glue.
5. the device for monitoring temperature of compressor oil according to claim 4, it is characterized in that, the excircle of described installation portion is provided with installation screw thread, the path of described installation screw thread is greater than the external diameter of described test section, the inner periphery of described installation through hole is provided with the screw thread corresponding with described installation screw thread, and described seal is arranged between the screw thread of described installation screw thread and described installation through hole.
6. the device for monitoring temperature of compressor oil according to claim 5, it is characterized in that, described connecting portion is hexagonal column, the inscribe diameter of a circle of described hexagon prism is greater than the external diameter of described installation portion, described connecting portion offers threaded hole away from one end of described installation portion, and described water joint is fixedly installed in described threaded hole by threaded post.
7. the device for monitoring temperature of compressor oil according to claim 6, is characterized in that, described water joint axially offers along it cable-through hole passed for described signal wire, and the diameter of described cable-through hole is a bit larger tham the external diameter of described signal wire.
8. the device for monitoring temperature of compressor oil according to claim 7, is characterized in that, described temperature sensor is PT temperature sensor or NTC temperature sensor.
9. the device for monitoring temperature of compressor oil according to claim 8, is characterized in that, described temperature-sensing pipe adopts red copper material to make.
10. the device for monitoring temperature of compressor oil according to claim 9, is characterized in that, described seal is resistant to elevated temperatures unsintered tape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420441631.2U CN204154404U (en) | 2014-08-06 | 2014-08-06 | The device for monitoring temperature of compressor oil |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420441631.2U CN204154404U (en) | 2014-08-06 | 2014-08-06 | The device for monitoring temperature of compressor oil |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204154404U true CN204154404U (en) | 2015-02-11 |
Family
ID=52512509
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420441631.2U Active CN204154404U (en) | 2014-08-06 | 2014-08-06 | The device for monitoring temperature of compressor oil |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204154404U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107902206A (en) * | 2017-11-29 | 2018-04-13 | 重庆市韵诚塑料防腐设备有限公司 | New corrosive liquids holding vessel |
| CN108885040A (en) * | 2016-02-18 | 2018-11-23 | 艾默生环境优化技术有限公司 | Compressor returns liquid and protects system |
-
2014
- 2014-08-06 CN CN201420441631.2U patent/CN204154404U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108885040A (en) * | 2016-02-18 | 2018-11-23 | 艾默生环境优化技术有限公司 | Compressor returns liquid and protects system |
| US10801762B2 (en) | 2016-02-18 | 2020-10-13 | Emerson Climate Technologies, Inc. | Compressor floodback protection system |
| CN108885040B (en) * | 2016-02-18 | 2021-05-11 | 艾默生环境优化技术有限公司 | Liquid return protection system of compressor |
| US11573037B2 (en) | 2016-02-18 | 2023-02-07 | Emerson Climate Technologies, Inc. | Compressor floodback protection system |
| CN107902206A (en) * | 2017-11-29 | 2018-04-13 | 重庆市韵诚塑料防腐设备有限公司 | New corrosive liquids holding vessel |
| CN107902206B (en) * | 2017-11-29 | 2019-08-23 | 重庆市韵诚塑料防腐设备有限公司 | Novel corrosive liquids holding vessel |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110079811B (en) | Device and method for on-line monitoring of underground cathode protection and corrosion of oil-water well pipe column | |
| CN204154404U (en) | The device for monitoring temperature of compressor oil | |
| CN201885849U (en) | Thermostatically-controlled pressure detecting structure | |
| CN107655612B (en) | A kind of pressure sensor of water pump and its detection data compensation method | |
| CN103968992A (en) | Pressure sensing device and pressure cooker with device | |
| CN201917402U (en) | Blind pipe connector | |
| CN209729332U (en) | A kind of reusable toilet warterproof examination high board of water gauge | |
| BRPI1103425A2 (en) | method for producing a device, device for detecting variables of the physical state of a medium and use | |
| CN204831593U (en) | Earthquake resistance type electric contact bimetal thermometer | |
| CN210346733U (en) | Outdoor anti-dewing transmitter | |
| CN202836812U (en) | Thermal resistor | |
| CN208420199U (en) | A kind of temperature sensor | |
| CN211234517U (en) | Petrochemical pipeline fluid viscosity monitoring device | |
| CN215641640U (en) | Water-cooling heat dissipation device capable of monitoring temperature of IGBT module in real time | |
| CN208505557U (en) | A kind of central air conditioning fan coil unit flow detector | |
| CN209085795U (en) | A kind of copper bar temperature real-time monitoring device of electric machine controller | |
| CN202350764U (en) | Fixture for detecting starting temperature and lift of temperature regulator for diesel engine | |
| CN207035622U (en) | Refrigeration plant | |
| CN207850553U (en) | Fluid temperature (F.T.) is popped one's head in | |
| CN202274945U (en) | Vehicle air conditioner duct temperature sensor | |
| CN110219865A (en) | A kind of anchor bolt with Failure Alarm | |
| CN210090405U (en) | Sensor performance testing device and system | |
| CN211696749U (en) | Real-time calibrating installation of calorimeter | |
| CN216594037U (en) | Residential natural gas leakage detection device based on pressure change recognition technology | |
| CN220399439U (en) | Multifunctional oil sensor |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |