CN216050344U - Three-way structure water temperature sensor - Google Patents
Three-way structure water temperature sensor Download PDFInfo
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- CN216050344U CN216050344U CN202121979925.7U CN202121979925U CN216050344U CN 216050344 U CN216050344 U CN 216050344U CN 202121979925 U CN202121979925 U CN 202121979925U CN 216050344 U CN216050344 U CN 216050344U
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Abstract
The utility model provides a three-way structure water temperature sensor which comprises a three-way shell, a thermistor, a terminal insert and a pin seat, wherein the terminal insert is arranged on the pin seat, the three-way shell comprises a temperature measuring pipe section, a first pipe orifice, a second pipe orifice and a third pipe orifice, the first pipe orifice and the second pipe orifice are both used for communicating a pipeline of a cooling system, the first pipe orifice is communicated with the second pipe orifice through the temperature measuring pipe section, a containing shell for placing the thermistor is arranged in the temperature measuring pipe section, the third pipe orifice is positioned above the temperature measuring pipe section, the pin seat is arranged in the third pipe orifice, a lead of the thermistor is welded with one end of the terminal insert, and the other end of the terminal insert extends into the third pipe orifice to serve as a connector terminal.
Description
Technical Field
The utility model relates to the field of temperature sensors, in particular to a temperature sensor for a new energy engine, a motor and a battery pack cooling system, and particularly relates to a three-way structure water temperature sensor.
Background
The cooling system of the new energy automobile engine, the motor and the battery pack is an important component of an automobile heat management system, generally comprises a radiator, a coolant pump, a coolant pipeline, an expansion water tank, an electromagnetic valve, an expansion valve and a temperature sensor, is an important part for ensuring the normal operation of the new energy automobile engine, the motor and the battery pack in a proper temperature range, and plays a vital role in collecting coolant temperature signals by adopting the temperature sensor. Gather the coolant temperature through temperature sensor, carry out real time monitoring and regulation to the coolant temperature then, reach the governing system temperature, improve the effect of cooling system reliability.
The existing new energy automobile cooling system temperature sensor has the problems of inconvenient connection with a cooling liquid pipeline, poor air tightness and slow response speed, further influences temperature measurement precision or efficiency, possibly causes cooling liquid leakage under severe conditions, system failure and damages to key parts of an engine, a motor and a battery pack.
SUMMERY OF THE UTILITY MODEL
The utility model aims to overcome the defects of the prior art and provides a water temperature sensor with a three-way structure, which at least solves part of problems in the prior art.
The utility model is realized by the following steps:
the utility model provides a three-way structure water temperature sensor which comprises a three-way shell, a thermistor, a terminal insert and a pin seat, wherein the terminal insert is arranged on the pin seat, the three-way shell comprises a temperature measuring pipe section, a first pipe orifice, a second pipe orifice and a third pipe orifice, the first pipe orifice and the second pipe orifice are both used for communicating a pipeline of a cooling system, the first pipe orifice is communicated with the second pipe orifice through the temperature measuring pipe section, a containing shell for placing the thermistor is arranged in the temperature measuring pipe section, the third pipe orifice is positioned above the temperature measuring pipe section, the pin seat is arranged in the third pipe orifice, a lead of the thermistor is welded with one end of the terminal insert, and the other end of the terminal insert extends into the third pipe orifice to serve as a connector terminal.
Preferably, a flow guide column favorable for glue injection filling is further arranged in the temperature measuring pipe section, and the flow guide column is connected with the accommodating shell.
Preferably, the accommodating case is filled with heat-conducting silicone grease.
Preferably, the tee bend shell with the plug pin seat is through rivet hot pressing fixed connection, the border of plug pin seat is provided with a plurality of U type guiding holes, the tee bend shell is equipped with a plurality of rivet hot compression posts that stretch into in the U type guiding hole, rivet hot compression post with U type guiding hole one-to-one, rivet hot compression post's head is located U type guiding hole top, makes rivet hot compression post's head crushing warp through the pressurized mode of heating realize the equipment of tee bend shell and plug pin seat fixed.
Preferably, the terminal insertion piece and the insertion needle seat are integrally formed in an injection molding mode.
Preferably, the three-way shell is integrally formed by injection molding.
The utility model has the following beneficial effects:
1. the three-way shell is integrally formed by injection molding, the runner part of the shell is simply and conveniently connected with a cooling liquid pipeline, and the three-way shell is reliable to install and is suitable for temperature measurement and monitoring of cooling systems of engines, motors and battery packs.
2. The tee bend shell adopts integrative injection moulding, and is provided with the water conservancy diversion post that does benefit to the injecting glue and pack, can ensure that the process of moulding plastics does not have the defect of moulding plastics such as air pocket, cavity, increases the resistant liquid impact ability of shell and gas tightness ability.
3. The tee joint shell is integrally formed by injection molding, the used material is hydrolysis-resistant plastic and does not have a metal insert, and the voltage resistance and the insulation performance are greatly improved.
4. The tee bend shell adopts integrative injection moulding, replaces the encapsulation technology of embedment behind the encapsulation of traditional metal casing epoxy with the heat conduction silicone grease that coefficient of heat conductivity is higher for temperature sensor possesses shorter hot time constant, has improved reaction rate and temperature measurement precision.
5. The three-way shell and the needle inserting seat are assembled and fixed in a hot riveting mode, the assembling process is simple, convenient and reliable, and the stability is high.
6. The hot riveting three-way structure water temperature sensor provided by the utility model has the advantages of simple structure, low cost, simple process route, easiness in realizing automatic assembly and capability of realizing high-precision temperature measurement and monitoring at low cost.
7. The tee bend shell adopts integrative injection moulding, is difficult for leading to the coolant liquid to leak, has avoided the system to become invalid, the risk of engine, motor, the damage of battery package key spare part.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a top view of a three-way water temperature sensor according to an embodiment of the present invention;
FIG. 2 is a left side view of FIG. 1 provided in accordance with an embodiment of the present invention;
FIG. 3 is a cross-sectional view of FIG. 2 according to an embodiment of the present invention;
fig. 4 is a schematic diagram illustrating details of a hot riveting structure according to an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it is to be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention. In the description of the present invention, "a plurality" means two or more unless otherwise specified.
Referring to fig. 1 to 4, an embodiment of the present invention provides a three-way structure water temperature sensor, including a three-way housing 1, a thermistor 2, a terminal insert 3, a pin base 4, and a heat conductive silicone grease 5, where the three-way housing 1 is integrally formed by injection molding, the terminal insert 3 is installed on the pin base 4, the terminal insert 3 and the pin base 4 are integrally formed by injection molding, the three-way housing 1 includes a temperature measuring pipe section 17, a first pipe orifice 11, a second pipe orifice 12, and a third pipe orifice 13, the first pipe orifice 11 and the second pipe orifice 12 are both used for communicating with a pipeline of a cooling system, the first pipe orifice 11 is communicated with the second pipe orifice 12 through the temperature measuring pipe section 17, a containing housing 15 for placing the thermistor 2 is provided in the temperature measuring pipe section 17, the containing housing 15 is located on a flow path of a cooling liquid, the containing housing 15 is filled with the heat conductive silicone grease 5, the thermistor 2 is used for detecting a temperature of the cooling liquid flowing through the first pipe orifice 11 and the second pipe orifice 12, the third mouth of pipe 13 is located the top of temperature measurement pipeline section 17, needle hub 4 is installed in third mouth of pipe 13, thermistor 2's lead wire with the one end welding of terminal inserted sheet 3, the other end of terminal inserted sheet 3 stretches into as the connector terminal in the third mouth of pipe 13.
The three-way shell is integrally formed by injection molding, the runner part of the shell is simply and conveniently connected with a cooling liquid pipeline, and the three-way shell is reliable to install and is suitable for temperature measurement and monitoring of cooling systems of engines, motors and battery packs. The hot riveting three-way structure water temperature sensor provided by the utility model has the advantages of simple structure, low cost, simple process route, easiness in realizing automatic assembly and capability of realizing high-precision temperature measurement and monitoring at low cost. The tee bend shell adopts integrative injection moulding, is difficult for leading to the coolant liquid to leak, has avoided the system to become invalid, the risk of engine, motor, the damage of battery package key spare part.
And a flow guide column 14 which is favorable for glue injection filling is further arranged in the temperature measuring pipe section, the flow guide column 14 is connected with the containing shell 15, and the flow guide column 14 guides the molten plastic to flow in the injection molding process of the three-way shell 1 to preferentially fill the containing shell 15. The tee bend shell adopts integrative injection moulding, and is provided with the water conservancy diversion post that does benefit to the injecting glue and pack, can ensure that the process of moulding plastics does not have the defect of moulding plastics such as air pocket, cavity, increases the resistant liquid impact ability of shell and gas tightness ability. The tee bend shell adopts integrative injection moulding, replaces the encapsulation technology of embedment behind the encapsulation of traditional metal casing epoxy with the heat conduction silicone grease that coefficient of heat conductivity is higher for temperature sensor possesses shorter hot time constant, has improved reaction rate and temperature measurement precision.
The tee joint shell 1 is integrally formed by injection molding, so that leakage caused by gaps in the process of assembling multiple parts can be avoided; meanwhile, through the optimization of the structure of the flow guide column, various injection molding defects of the air pockets in the accommodating shell 15 (the thermistor wrapping part) in the plastic particle filling process can be avoided, and leakage caused by the injection molding defects can also be avoided.
The tee joint shell 1 is integrally formed by injection molding, the air tightness is good, a cooling liquid flow passage is completely isolated from the outside, and the cooling liquid is not easy to leak.
As shown in fig. 3, the plug pin seat 4 is placed into the third pipe orifice 13 of the three-way housing 1, a supporting platform for supporting the plug pin seat 4 is arranged in the three-way housing 1, the top of the plug pin seat 4 is fixedly connected with the three-way housing 1 through hot riveting, as shown in fig. 1 and fig. 4, the edge of the plug pin seat 4 is provided with a plurality of U-shaped guide holes 41, the three-way housing 1 is provided with a plurality of hot riveting pressing columns 16 extending into the U-shaped guide holes 41, the hot riveting pressing columns 16 are in one-to-one correspondence with the U-shaped guide holes 41, the head of each hot riveting pressing column 16 is located above the U-shaped guide holes 41, and the head of each hot riveting pressing column 16 is deformed through heating and pressurizing modes to realize the assembly fixation of the three-way housing 1 and the plug pin seat 4. Fig. 4 is a detailed cross-sectional view of the hot riveting structure of fig. 1. The three-way shell and the needle inserting seat are assembled and fixed in a hot riveting mode, the assembling process is simple, convenient and reliable, and the stability is high.
The hot riveting three-way structure water temperature sensor provided by the utility model is simple in structure, rapid and reliable in installation, and suitable for temperature measurement and monitoring of engines, motors and battery pack cooling systems of new energy automobiles. The three-way shell formed integrally is injection molded, so that the requirements of liquid impact resistance and air tightness of the temperature sensor are met, and the temperature sensor has higher insulating and pressure-resistant performance; the heat-conducting silicone grease 5 has high heat conductivity coefficient and high response speed of the temperature sensor; the hot riveting and assembling process is stable and reliable.
The utility model provides a hot riveting three-way structure water temperature sensor which is used for being installed in occasions needing cooling liquid cooling, such as engines, motors, battery packs and the like of new energy automobiles, is used for monitoring the temperature of cooling liquid in pipelines, and has the characteristics of high reliability, good air tightness, high response speed, simple structure and low cost.
The utility model provides a novel water temperature sensor with a hot riveting three-way structure, which aims to solve the problems of low response rate, insufficient air tightness and the like of the existing new energy automobile cooling liquid temperature sensor and has the characteristics of high response rate, good air tightness and excellent insulating and pressure-resistant performance.
Referring to fig. 1-4, the utility model provides a hot riveting three-way structure water temperature sensor for a new energy automobile, which comprises an injection three-way shell 1, a thermistor 2, a terminal insert 3, a pin seat 4 and filling material heat conduction silicone grease 5. The terminal inserting sheet 3 and the inserting needle seat 4 are molded integrally by injection, wherein one end of the terminal inserting sheet 3 is exposed and connected with a lead part of the thermistor 2 by soldering, and the other end of the terminal inserting sheet 3 is exposed to be used as a connector terminal; the three-way shell 1 is formed integrally by injection molding, a first pipe orifice 11 and a second pipe orifice 12 of the three-way shell 1 are respectively connected with a cooling system pipeline, and a third pipe orifice 13 is a protective shell of the connector terminal; the tee joint shell 1 is fixedly connected with the plug pin seat 4 in a hot riveting mode, a plurality of U-shaped guide holes 41 are formed in the periphery of the plug pin seat 4, the head portions of a plurality of hot riveting pressing columns 16 arranged on the tee joint shell are crushed and deformed through heating and pressurizing to achieve the function of assembling and fixing, and the guide columns 14 which are beneficial to filling in the glue injection process are arranged on the tee joint shell 1, so that the accommodating shell 15 of the thermistor is completely filled with glue. The heat conductive silicone grease 5 is filled between the housing case 15 and the thermistor 2.
Referring to fig. 3, the thermistor 2 is a ntc thermistor, and the package is an epoxy package or a glass package, as a preferred embodiment.
Referring to fig. 1 and 2, as a preferred embodiment, the three-way housing 1 is integrally formed by injection molding of PA66 plastic particles and 30% glass fiber, and a flow guide column 14 and a plurality of hot riveting columns 16 for hot riveting and fixing are arranged on the three-way housing 1 to facilitate the injection molding and filling process and avoid air pockets. The tee joint shell is integrally formed by injection molding, the used material is hydrolysis-resistant plastic and does not have a metal insert, and the voltage resistance and the insulation performance are greatly improved.
Referring to fig. 3, as a preferred embodiment, the plug pin seat 4 is formed by injection molding of PBT plastic particles and 30% glass fiber, and the plug pin seat 4 is provided with a U-shaped guide hole 41 for assembly guide and hot riveting fixation.
Referring to fig. 3, as a preferred embodiment, the terminal insert 3 is formed as an insert and is injection-molded integrally with the insert holder 4, and the material thereof is brass plated with nickel and then plated with tin.
Referring to fig. 3, as a preferred embodiment, the filling material is heat-conducting silicone grease 5, which is used to fill in the gap between the thermistor 2 and the three-way housing 1.
Referring to fig. 1, fig. 3 and fig. 4, as a preferred embodiment, the three-way housing 1 is fixedly connected with the plug seat 4 through the hot riveting column 16 in a hot riveting manner.
The working principle of the water temperature sensing of the hot riveting three-way structure provided by the utility model is as follows: the first pipe orifice 11 and the second pipe orifice 12 of the temperature sensor are connected with the cooling liquid flow channel, when cooling liquid with different temperatures flows through the thermistor in the pipeline, the thermistor presents different resistance values, and the terminal insertion sheet 3 is collected by a lead wire and transmitted to a control system through the third pipe orifice 13, so that the measurement and monitoring of signals are generated, and meanwhile, the adjustment signal is fed back, and the control of the temperature is realized.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the utility model, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (6)
1. The utility model provides a tee bend structure temperature sensor which characterized in that: including tee bend shell, thermistor, terminal inserted sheet, plug pin seat, the terminal inserted sheet is installed on the plug pin seat, the tee bend shell includes temperature measurement pipeline section, first mouth of pipe, the second mouth of pipe and the third mouth of pipe, first mouth of pipe and the second mouth of pipe all are used for the pipeline of intercommunication cooling system, first mouth of pipe pass through the temperature measurement pipeline section with the second mouth of pipe intercommunication, be equipped with the shell of acceping of placing thermistor in the temperature measurement pipeline section, the third mouth of pipe is located the top of temperature measurement pipeline section, the plug pin seat is installed in the third mouth of pipe, thermistor's lead wire with the one end welding of terminal inserted sheet, the other end of terminal inserted sheet stretches into as the connector terminal in the third mouth of pipe.
2. The three-way structure water temperature sensor according to claim 1, wherein: and a flow guide column favorable for glue injection filling is further arranged in the temperature measuring pipe section, and the flow guide column is connected with the accommodating shell.
3. The three-way structure water temperature sensor according to claim 1, wherein: and the accommodating shell is filled with heat-conducting silicone grease.
4. The three-way structure water temperature sensor according to claim 1, wherein: the tee bend shell with the plug pin seat is through the hot riveting fixed connection, the border of plug pin seat is provided with a plurality of U type guiding holes, the tee bend shell is equipped with a plurality of hot riveting compression leg that stretch into in the U type guiding hole, the hot riveting compression leg with U type guiding hole one-to-one, the head of hot riveting compression leg is located U type guiding hole top, and it is fixed to make the head crushing deformation of hot riveting compression leg realize the equipment of tee bend shell and plug pin seat through the pressurized mode of heating.
5. The three-way structure water temperature sensor according to claim 1, wherein: the terminal insertion piece and the pin base are integrally formed in an injection molding mode.
6. The three-way structure water temperature sensor according to claim 1, wherein: the tee joint shell is integrally formed by injection molding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121979925.7U CN216050344U (en) | 2021-08-23 | 2021-08-23 | Three-way structure water temperature sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121979925.7U CN216050344U (en) | 2021-08-23 | 2021-08-23 | Three-way structure water temperature sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216050344U true CN216050344U (en) | 2022-03-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121979925.7U Active CN216050344U (en) | 2021-08-23 | 2021-08-23 | Three-way structure water temperature sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216050344U (en) |
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2021
- 2021-08-23 CN CN202121979925.7U patent/CN216050344U/en active Active
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