CN215004013U - Cooling liquid temperature sensor - Google Patents
Cooling liquid temperature sensor Download PDFInfo
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- CN215004013U CN215004013U CN202121451785.6U CN202121451785U CN215004013U CN 215004013 U CN215004013 U CN 215004013U CN 202121451785 U CN202121451785 U CN 202121451785U CN 215004013 U CN215004013 U CN 215004013U
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Abstract
The utility model discloses a coolant temperature sensor belongs to automobile engine technical field. The temperature control device comprises a temperature component, a stainless steel shell, heat-conducting silicone grease and a fixed flange; the temperature component comprises a PIN needle and a temperature chip, the lower end of the PIN needle is electrically connected with the temperature chip, and the outer side of a connecting part of the PIN needle and the temperature chip is subjected to injection molding to form a plastic sleeve; the stainless steel shell is sleeved at one end of the temperature component, which is provided with the temperature chip, and the temperature chip is sealed in the stainless steel shell; the heat-conducting silicone grease is filled in the inner space of the stainless steel shell where the temperature chip is positioned; the fixed flange is sleeved outside the temperature assembly. Through stainless steel shell and plastics external member compound mode, realize with coolant liquid temperature sensor lightweight, reduce the heat dissipation, promote the response speed to coolant liquid temperature, use the corrosion resistance that stainless steel material replaced copper material reinforcing shell, further promote life.
Description
Technical Field
The utility model relates to a coolant temperature sensor belongs to automobile engine technical field.
Background
In automotive engine systems, temperature is one of the important parameters to measure and control, and is currently monitored by immersion of a coolant temperature sensor in the coolant.
The shell material of coolant temperature sensor among the prior art is copper, receives the coolant liquid corrosion for a long time, leads to life to shorten increasingly, and the screw thread that is used for the installation through the machining technology formation on the copper product shell leads to copper shell volume and quality great, adopts metal packing ring as seal gasket, because take place permanent deformation promptly after the packing ring is once installed, causes to relapse the dismouting back sealing performance and reduces. And as the timeliness and accuracy of ECU control are increasing, the response requirement for coolant temperature change is also increasing gradually, requiring that the coolant temperature sensor can respond quickly to coolant temperature change. The use of copper material with large area enables the temperature sensor to have larger heat dissipation area, and influences the temperature measurement accuracy and the thermal response speed characteristic.
SUMMERY OF THE UTILITY MODEL
The utility model discloses the technical problem that will solve lies in: the utility model provides a coolant temperature sensor, it has solved among the prior art slow, the short problem of life to coolant temperature change response speed.
The utility model discloses the technical problem that will solve takes following technical scheme to realize:
a cooling liquid temperature sensor comprises a temperature component, a stainless steel shell, heat-conducting silicone grease and a fixed flange;
the temperature component comprises a PIN needle and a temperature chip, the lower end of the PIN needle is connected with the temperature chip, and a plastic sleeve is formed by injection molding on the outer side of a connecting part of the PIN needle and the temperature chip;
the stainless steel shell is a cylindrical protective shell with an opening at only one end, the stainless steel shell is sleeved at one end of the temperature assembly with the temperature chip, and the stainless steel shell is hermetically connected with the plastic sleeve to seal the temperature chip in the stainless steel shell;
the heat-conducting silicone grease is filled in the inner space of the stainless steel shell where the temperature chip is positioned;
the temperature subassembly outside is located to the mounting flange cover, forms the plastic connector through first one at the stainless steel shell, the outside formation of moulding plastics of temperature subassembly, and mounting flange fixes in the plastic connector outside, and the plastic connector is equipped with the connection chamber, and the upper end of PIN needle exposes in the connection chamber.
Preferably, a first sealing ring groove is formed in the outer side of the closed end of the stainless steel shell, and a first O-shaped ring is arranged in the first sealing ring groove, so that the sealing performance of the cooling liquid temperature sensor can be guaranteed after the cooling liquid temperature sensor is repeatedly disassembled and assembled.
Preferably, a second sealing ring groove is formed in the outer side of the opening end of the stainless steel shell, and a second O-shaped ring is arranged in the second sealing ring groove and used for preventing the plastic connector from being separated from the stainless steel shell and ensuring the sleeving stability of the plastic connector and the stainless steel shell.
Preferably, a third sealing ring groove is formed in the outer side of the plastic connector, the third sealing ring groove is located below the fixing flange, and a third O-shaped ring is arranged in the third sealing ring groove, so that the sealing performance of the cooling liquid temperature sensor can be guaranteed after the cooling liquid temperature sensor is repeatedly disassembled and assembled.
More preferably, the first O-ring, the second O-ring and the third O-ring are all made of rubber.
The utility model has the advantages that:
(1) through the combination mode of the stainless steel shell and the plastic sleeve, the cooling liquid temperature sensor is lightened, the heat dissipation is reduced, and the response speed to the cooling liquid temperature is improved;
(2) the shell made of stainless steel is used for replacing a shell made of copper, so that the corrosion resistance of the shell is enhanced, and the service life is further prolonged;
(3) through setting up first sealing washer groove, third sealing washer groove and set up first O type circle, third O type circle respectively in the inslot, promote the sealing performance after the repeated dismouting.
Drawings
Fig. 1 is a perspective view of the present invention.
Fig. 2 is an exploded view of the present invention.
Fig. 3 is a front view of the present invention.
Fig. 4 is a sectional view taken along line a-a of fig. 3.
Fig. 5 is a sectional view taken along line C-C of fig. 3.
In the figure: 11. a PIN needle; 12. a temperature chip; 2. a stainless steel housing; 21. a first O-ring; 22. a second O-ring; 23. a plastic sleeve; 3. heat-conducting silicone grease; 4. a fixed flange; 5. a connector; 51. and a third O-ring.
Detailed Description
In order to make the technical means, the creation features, the achievement purposes and the functions of the present invention easy to understand and understand, the present invention is further explained by combining the following specific drawings.
The first embodiment is as follows:
referring to fig. 1-5, the present embodiment provides a coolant temperature sensor for monitoring the temperature of coolant in an automobile engine, which includes a temperature component, a stainless steel housing 2, a thermal grease 3, and a mounting flange 4. The shell is made of stainless steel, so that the shell has better corrosion resistance;
the temperature component comprises a PIN (personal identification number) PIN 11 and a temperature chip 12, wherein the temperature chip 12 is used for acquiring the temperature of the cooling liquid; the lower end of the PIN 11 is electrically connected with the temperature chip 12, the temperature signal acquired by the temperature chip 12 is transmitted to the PIN 11, the outer side of the connecting part of the PIN 11 and the temperature chip 12 is subjected to injection molding to form a plastic sleeve 23, the PIN 11 and the temperature chip 12 are tightly fixed, and the weight of the temperature component can be reduced by utilizing an injection molding mode;
the stainless steel shell 2 is a cylindrical protective shell with an opening at only one end, the stainless steel shell 2 is sleeved at one end of the temperature assembly, which is provided with the temperature chip 12, the stainless steel shell 2 is hermetically connected with the plastic sleeve 23, the temperature chip 12 is sealed in the stainless steel shell 2, the heat dissipation can be reduced by the combination of the stainless steel shell and the plastic sleeve 23, and the response speed to the temperature of the cooling liquid is improved;
the heat-conducting silicone grease 3 is filled in the inner space of the stainless steel shell 2 where the temperature chip 12 is positioned;
the temperature subassembly outside is located to mounting flange 4 cover, through in stainless steel housing 2 first half, the outside formation plastic connector 5 of moulding plastics of temperature subassembly, mounting flange 4 is fixed in the 5 outsides of plastic connector, plastic connector 5 is equipped with the connection chamber, the upper end of PIN needle 11 exposes in the connection intracavity, form the protection to PIN needle 11 through connecting the chamber, avoid PIN needle 11 directly to expose in the outside, prevent that PIN needle 11 from taking place buckling deformation because of the collision, lead to the unable normal connection of PIN needle 11 to use, cause whole sensor to scrap.
Adopt plastics external member 23, reduce coolant temperature sensor's weight, reduced stainless steel shell 2's quality and volume, set up through stainless steel shell 2 and the 23 compound mode of plastics external member, realize the lightweight to reduce stainless steel shell 2's heat dissipation, and then promoted response speed.
Example two:
referring to fig. 1-5, the present embodiment provides a coolant temperature sensor, which includes a temperature component, a stainless steel housing 2, a thermal grease 3, and a fixing flange 4;
the outside of the closed end of the stainless steel shell 2 is provided with a first sealing ring groove, a first O-shaped ring 21 is arranged in the first sealing ring groove, and the first O-shaped ring 21 is made of rubber, so that the sealing performance of the cooling liquid temperature sensor can be guaranteed after repeated disassembly and assembly. The other structure is the same as the first embodiment.
Example three:
referring to fig. 1-5, the present embodiment provides a coolant temperature sensor, which includes a temperature component, a stainless steel housing 2, a thermal grease 3, and a fixing flange 4;
the open end outside of stainless steel shell 2 is equipped with second seal ring groove, and second seal ring inslot is equipped with second O type circle 22, and second O type circle 22 adopts rubber material for prevent that connector 5 and stainless steel shell 2 from breaking away from, guarantee the stability that connector 5 and stainless steel shell 2 cup jointed. The other structure is the same as the first embodiment.
Example four:
referring to fig. 1-5, the present embodiment provides a coolant temperature sensor, which includes a temperature component, a stainless steel housing 2, a thermal grease 3, and a fixing flange 4;
the fixing flange 4 is sleeved outside the temperature assembly, a plastic connector 5 is formed by injection molding on the upper half part of the stainless steel shell 2 and the outside of the temperature assembly, and the fixing flange 4 is fixed on the outer side of the plastic connector 5;
the plastic connector 5 outside is equipped with the third sealing washer groove, third sealing washer groove axial is located between mounting flange 4 and temperature chip 12, and be close to mounting flange 4 and set up, the third sealing washer inslot is equipped with third O type circle 51, third O type circle 51 adopts the rubber material, compare in traditional metal packing ring as seal gasket, take place permanent deformation promptly after the metal packing ring is once installed, cause the product sealing performance after the dismouting repeatedly to reduce, adopt the sealing mode of rubber material third O type circle 51, promote the sealing performance after the repeated dismouting, long service life is longer. The fixing flange 4 is arranged, so that the bolt fastening installation is convenient. The other structure is the same as the first embodiment.
The utility model provides a pair of coolant temperature sensor's equipment mode as follows:
firstly, the PIN 11 and the temperature chip 12 are electrically connected through a resistance welding process, and the PIN 11 and the temperature chip 12 form a temperature component through a plastic sleeve 23 manufactured through an injection molding process; then, filling heat-conducting silicone grease 3 in the stainless steel shell 2, sleeving a second O-shaped ring 22 on the stainless steel shell 2, inserting a temperature component into the stainless steel shell 2, and installing a fixing flange 4 on the temperature component; then, the temperature component is sleeved with the stainless steel shell 2 through a plastic connector 5 manufactured by an injection molding process; finally, the first O-ring 21 is fitted in the first seal ring groove, and the third O-ring 51 is fitted in the third seal ring groove.
The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and that various changes and modifications may be made without departing from the spirit and scope of the invention, and these changes and modifications are intended to be included within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (4)
1. A cooling liquid temperature sensor is characterized by comprising a temperature component, a stainless steel shell, heat-conducting silicone grease and a fixed flange;
the temperature component comprises a PIN needle and a temperature chip, the lower end of the PIN needle is connected with the temperature chip, and a plastic sleeve is formed by injection molding on the outer side of a connecting part of the PIN needle and the temperature chip;
the stainless steel shell is a cylindrical protective shell with an opening at only one end, the stainless steel shell is sleeved at one end of the temperature assembly with the temperature chip, and the stainless steel shell is hermetically connected with the plastic sleeve to seal the temperature chip in the stainless steel shell;
the heat-conducting silicone grease is filled in the inner space of the stainless steel shell where the temperature chip is positioned;
the temperature subassembly outside is located to the mounting flange cover, forms the plastic connector through first one at the stainless steel shell, the outside formation of moulding plastics of temperature subassembly, and mounting flange fixes in the plastic connector outside, and the plastic connector is equipped with the connection chamber, and the upper end of PIN needle exposes in the connection chamber.
2. The coolant temperature sensor according to claim 1, wherein a first seal ring groove is formed in the outer side of the closed end of the stainless steel housing, and a first O-ring is arranged in the first seal ring groove.
3. The coolant temperature sensor according to claim 1, wherein a second sealing ring groove is formed in the outer side of the opening end of the stainless steel housing, and a second O-ring is arranged in the second sealing ring groove.
4. The coolant temperature sensor according to claim 1, wherein a third gasket groove is formed on the outer side of the plastic connector, the third gasket groove is located below the fixing flange, and a third O-ring is formed in the third gasket groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121451785.6U CN215004013U (en) | 2021-06-28 | 2021-06-28 | Cooling liquid temperature sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121451785.6U CN215004013U (en) | 2021-06-28 | 2021-06-28 | Cooling liquid temperature sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215004013U true CN215004013U (en) | 2021-12-03 |
Family
ID=79103728
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121451785.6U Active CN215004013U (en) | 2021-06-28 | 2021-06-28 | Cooling liquid temperature sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215004013U (en) |
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2021
- 2021-06-28 CN CN202121451785.6U patent/CN215004013U/en active Active
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