Water temperature sensor

Abstract

The utility model discloses a water temperature sensor, which comprises a three-way pipe and a water temperature sensor body, two ends of the three-way pipe are respectively in threaded sealing connection with two ends of a cooling liquid flowing pipeline, the water temperature sensor body comprises a shell, a plug and a connecting assembly, and the utility model belongs to the technical field of sensors. Related personnel hold the plug by hand to insert the narrow end of the shell into the three-way pipe, the shell is in sealed connection with the inner wall of the three-way pipe through the sealing sleeve, then the related personnel enable the clamping spring to penetrate through the through grooves in the two sides of the three-way pipe, and the clamping spring is in contact connection with the two sides of the connecting block and the top of the shell. The technical effects that the water temperature sensor body and the three-way pipe are installed and fixed, the water temperature sensor body and the three-way pipe are prevented from loosening, the sensitivity of the water temperature sensor body is reduced, the reaction speed is reduced, the reliability of the water temperature sensor body is affected, and the service life of the water temperature sensor body is shortened are achieved.

Description

Technical Field

[0001] The utility model belongs to the technical field of sensors, and in particular relates to a water temperature sensor. Background Art

[0002] The internal structure of the water temperature sensor is a thermistor with a resistance value between 275 ohms and 6500 ohms. The lower the temperature, the higher the resistance, and the higher the temperature, the lower the resistance. Automobiles require multiple sensors with different functions. The water temperature sensor is used to detect the temperature of the engine coolant and convert the temperature signal into an electrical signal to provide to the temperature display instrument and ECU.

[0003] In the prior art, when using water temperature sensors, they are basically connected by threads. However, if the vehicle is bumpy during long-term driving, it is easy to cause the water temperature sensor and the connector to loosen, and the position of the water temperature sensor is prone to shift, which in turn leads to a decrease in the sensitivity of the water temperature sensor and a slow response speed, affecting the reliability of the sensor and reducing the service life of the water temperature sensor.

[0004] For this purpose, a water temperature sensor is proposed, which uses a water temperature sensor body such as a tee pipe to solve the problem in the prior art that the water temperature sensor is easily loosened from the connecting piece, resulting in the water temperature sensor position being easily offset. Summary of the invention

[0005] In view of the deficiencies in the prior art, the utility model provides a water temperature sensor to solve the above problems.

[0006] To achieve the above purpose, the utility model is implemented by the following technical solutions: a water temperature sensor, including a three-way pipe for connecting to the engine coolant flow pipeline, the two ends of the three-way pipe are respectively threaded and sealed with the two ends of the coolant flow pipeline, and also includes:

[0007] The water temperature sensor body includes a shell, a plug and a connecting assembly. The water temperature sensor body is connected to an end of a three-way pipe away from the coolant flow pipeline. A thermistor is arranged inside the shell. The thermistor is electrically connected to the plug. The plug is connected to the connecting assembly. The connecting assembly includes a sealing sleeve and a connecting block.

[0008] On the basis of the above technical solutions, the present invention also provides the following optional technical solutions:

[0009] Further technical solution: the sealing sleeve fixing sleeve is arranged on the outer side of one end of the shell close to the plug, the outer surface diameter of the sealing sleeve is consistent with the inner wall diameter of one end of the tee pipe, and the sealing sleeve is sealed and connected to the inner wall of the tee pipe.

[0010] Further technical solution: Both ends of the connection block are fixedly connected to one end of the plug and the top of the shell respectively, and the plug and the shell are arranged in a vertical direction.

[0011] Further technical solution: the shell is configured as a multi-layer cylindrical structure which is wide at the top and narrow at the bottom, and the length and width of the connecting block are both smaller than the top diameter of the shell.

[0012] Further technical solution: the diameter of the bottom of the shell is much smaller than the diameter of the inner wall of the tee pipe.

[0013] Further technical solution: Two through grooves for the retaining spring to pass through are respectively provided on both sides of the three-way pipe corresponding to the top of the shell, and the retaining spring is arranged in an Ω shape. The two sides of the retaining spring respectively pass through the through grooves on both sides of the three-way pipe, and the lower surface and both sides of the inner wall of the retaining spring are respectively fitted with the top of the shell and both sides of the connecting block. Beneficial Effects

[0014] The utility model provides a water temperature sensor. Compared with the prior art, it has the following beneficial effects:

[0015] The relevant personnel hold the plug and insert the narrow end of the shell into the three-way pipe, and use the sealing sleeve to seal the shell and the inner wall of the three-way pipe. Then the relevant personnel pass the retaining spring through the through grooves on both sides of the three-way pipe, and make the retaining spring contact and connect with both sides of the connecting block and the top of the shell, so as to install and fix the water temperature sensor body and the three-way pipe, avoid the water temperature sensor body and the three-way pipe from loosening, resulting in the position of the water temperature sensor body being offset, the sensitivity of the water temperature sensor body being reduced, the reaction speed being slowed down, affecting the reliability of the water temperature sensor body and reducing the service life of the water temperature sensor body. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model.

[0017] Figure 2 It is a side view schematic diagram of the structure distribution of the utility model.

[0018] Figure 3 It is a front view structural schematic diagram of the utility model.

[0019] Figure 4 It is a three-dimensional structural schematic diagram of the utility model from another angle.

[0020] Notes on figure numbers: 1. Water temperature sensor body; 2. Shell; 3. Plug; 4. Connecting assembly; 5. Sealing sleeve; 6. Connecting block. Implementation

[0021] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0022] The specific implementation of the present utility model is described in detail below in conjunction with specific embodiments.

[0023] See also Figures 1 to 4 , provided in one embodiment of the utility model, a water temperature sensor includes a three-way pipe for connecting to a pipeline through which engine coolant flows, the two ends of the three-way pipe are respectively threadedly sealed with the two ends of the pipeline through which coolant flows, and also includes:

[0024] The water temperature sensor body 1 includes a shell 2, a plug 3 and a connecting component 4. The water temperature sensor body 1 is connected to the end of the three-way pipe away from the coolant flow pipeline. A thermistor is arranged inside the shell 2. The thermistor is electrically connected to the plug 3. The plug 3 is connected to the connecting component 4. The connecting component 4 includes a sealing sleeve 5 and a connecting block 6.

[0025] Preferably, the sealing sleeve 5 is fixedly mounted on the outer side of one end of the housing 2 close to the plug 3, the outer diameter of the sealing sleeve 5 is consistent with the inner diameter of one end of the tee, and the sealing sleeve 5 is sealed and connected to the inner wall of the tee. The purpose of this arrangement is to achieve sealing of the housing 2 and the inner wall of the tee through the sealing sleeve 5, so as to prevent the engine coolant flowing through the tee from overflowing.

[0026] Preferably, both ends of the connection block 6 are fixedly connected to one end of the plug 3 and the top of the housing 2, respectively, and the plug 3 and the housing 2 are arranged in a vertical direction. The purpose of this arrangement is to strengthen the stability of the connection between the plug 3 and the housing 2 through the connection block 6, and through the vertical distribution of the plug 3 and the housing 2, it is convenient for relevant personnel to hold the plug 3 and insert the housing 2 of the water temperature sensor body 1 into the tee pipe for installation.

[0027] Preferably, the housing 2 is configured as a multi-layer cylindrical structure that is wide at the top and narrow at the bottom, and the length and width of the connecting block 6 are both smaller than the top diameter of the housing 2. The purpose of this configuration is to achieve the purpose of facilitating the thermistor to fully contact with the engine coolant through the housing 2 by configuring the multi-layer cylindrical structure that is wide at the top and narrow at the bottom of the housing 2.

[0028] Preferably, the bottom diameter of the housing 2 is much smaller than the inner wall diameter of the tee. The purpose of this arrangement is to reduce the effect of the housing 2 on the flow rate of the engine coolant flowing through the tee.

[0029] Preferably, two through slots for the clip to pass through are respectively provided on both sides of the three-way pipe corresponding to the top of the housing 2, and the clip is arranged in an Ω shape, and the two sides of the clip pass through the through slots on both sides of the three-way pipe, and the lower surface and the two sides of the inner wall of the clip fit the top of the housing 2 and the two sides of the connecting block 6 respectively. The purpose of this arrangement is to limit the housing 2 and the connecting block 6 of the water temperature sensor body 1 by the clip, so as to achieve the purpose of firmly installing the water temperature sensor body 1 and the three-way pipe.

[0030] In the embodiment of the utility model, the relevant personnel hold the plug 3 and insert the narrow end of the shell 2 into the three-way pipe, and seal the shell 2 and the inner wall of the three-way pipe through the sealing sleeve 5. Then the relevant personnel pass the retaining spring through the through grooves on both sides of the three-way pipe, and make the retaining spring contact and connect with both sides of the connecting block 6 and the top of the shell 2, so as to achieve the installation and fixation of the water temperature sensor body 1 and the three-way pipe, avoid the water temperature sensor body 1 and the three-way pipe from loosening, resulting in the position of the water temperature sensor body 1 being offset, the sensitivity of the water temperature sensor body 1 being reduced, the reaction speed being slowed down, affecting the reliability of the water temperature sensor body 1 and reducing the service life of the water temperature sensor body 1.

[0031] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0032] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A water temperature sensor, comprising a tee pipe for connecting to a pipeline through which engine coolant flows, wherein both ends of the tee pipe are respectively threadedly sealed with both ends of the pipeline through which coolant flows, characterized in that: Also includes: A water temperature sensor body (1), the water temperature sensor body (1) comprising a shell (2), a plug (3) and a connecting assembly (4), the water temperature sensor body (1) being connected to an end of a three-way pipe away from a coolant flow pipeline, a thermistor being arranged inside the shell (2), the thermistor being electrically connected to the plug (3), the plug (3) being connected to the connecting assembly (4), and the connecting assembly (4) comprising a sealing sleeve (5) and a connecting block (6).

2. The water temperature sensor according to claim 1, characterized in that: The sealing sleeve (5) is fixedly mounted on the outer side of one end of the housing (2) close to the plug (3); the diameter of the outer surface of the sealing sleeve (5) is consistent with the diameter of the inner wall of one end of the three-way pipe; the sealing sleeve (5) is sealed and connected to the inner wall of the three-way pipe.

3. The water temperature sensor according to claim 1, characterized in that: Two ends of the connection block (6) are respectively fixedly connected to one end of the plug (3) and the top of the shell (2); the plug (3) and the shell (2) are arranged in a vertical direction.

4. The water temperature sensor according to claim 1, characterized in that: The shell (2) is configured as a multi-layer cylindrical structure that is wide at the top and narrow at the bottom, and the length and width of the connecting block (6) are both smaller than the top diameter of the shell (2).

5. The water temperature sensor according to claim 1, characterized in that: The diameter of the bottom of the shell (2) is much smaller than the diameter of the inner wall of the tee pipe.

6. The water temperature sensor according to claim 1, characterized in that: Two through slots for the clip to pass through are respectively provided on both sides of the three-way pipe corresponding to the top of the shell (2); the clip is arranged in an Ω shape; the two sides of the clip pass through the through slots on both sides of the three-way pipe; the lower surface and the two sides of the inner wall of the clip fit the top of the shell (2) and the two sides of the connecting block (6) respectively.

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