CN210603640U

CN210603640U - Temperature sensor

Info

Publication number: CN210603640U
Application number: CN201921052344.1U
Authority: CN
Inventors: 李燕; 姚明
Original assignee: Vitesco Automotive Changchun Co Ltd
Current assignee: Vitesco Automotive Changchun Co Ltd
Priority date: 2019-07-05
Filing date: 2019-07-05
Publication date: 2020-05-22
Anticipated expiration: 2029-07-05

Abstract

The utility model provides a temperature sensor, it includes link, fixed part, first conductive terminal, second conductive terminal and shell. The housing is secured to the stationary portion, the first conductive terminal includes a first end disposed within the housing, and the second conductive terminal includes a second end disposed within the housing. And the edge of the first end part and/or the second end part close to the shell is/are provided with a chamfer. The utility model provides a temperature sensor is equipped with the chamfer through the tip at conductive terminal group, can avoid conductive terminal group when installing in the shell with the shell bump and produce metal piece and influence temperature sensor's normal work.

Description

Temperature sensor

Technical Field

The utility model relates to a temperature sensor, especially a temperature sensor for vehicle field.

Background

The temperature sensor includes a terminal, a housing, and a thermistor assembly. The thermistor assembly includes a thermistor and a leg portion through which the thermistor is fixed to a terminal. In order to obtain a high measurement accuracy, the diameter of the housing is generally set as small as possible, and the terminals are stamped out so that the edges of the terminals are at right angles. When the terminal is mounted in the housing, the terminal may collide with the housing to generate metal chips. Since the gap between the legs of the thermistor assembly is small, the occurrence of short circuits is easily caused if the generated metal debris falls between the legs.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a reduce temperature sensor of production disability rate.

According to an aspect of the present invention, a temperature sensor is provided, which includes a connecting end, a fixing portion, a first conductive terminal, a second conductive terminal, and a housing. The housing is secured to the stationary portion, the first conductive terminal includes a first end disposed within the housing, and the second conductive terminal includes a second end disposed within the housing. And the edge of the first end part and/or the second end part close to the shell is/are provided with a chamfer.

Preferably, the chamfer is a rounded corner.

Preferably, the temperature sensor further comprises an insulating block, and the first conductive terminal and the second conductive terminal penetrate through the insulating block.

Preferably, the insulating block is fixed within the housing.

Preferably, the temperature sensor further comprises a thermistor assembly disposed in the housing and a thermally conductive adhesive covering the thermistor assembly, the thermistor assembly comprising a thermistor and a first leg connecting the thermistor with the first end and a second leg connecting the thermistor with the second end.

Preferably, the connecting end and the fixing portion are fixed together, and the first conductive terminal and the second conductive terminal are fixed to the connecting end by injection molding.

Preferably, the housing is made of a metal material.

Preferably, the temperature sensor is used for temperature measurement of an exhaust gas recirculation system.

Preferably, the fixing portion is a nut.

Preferably, the first end and the second end are flat, the chamfer of the first end is arranged at the edge far away from the second end, and the chamfer of the second end is arranged at the edge far away from the first end.

The utility model provides a temperature sensor is equipped with the chamfer through the tip at conductive terminal group, can avoid conductive terminal group when installing in the shell with the shell bump and produce metal piece and influence temperature sensor's normal work.

Drawings

Fig. 1 is a sectional view of the temperature sensor of the present invention.

Fig. 2 is an exploded perspective view of the temperature sensor of the present invention.

Fig. 3 is a partially exploded perspective view of the temperature sensor of the present invention.

Detailed Description

Referring to fig. 1 to 3, the present invention discloses a temperature sensor 100, which includes a connection terminal 1, a fixing portion 3, a conductive terminal assembly 8, and a housing 7. The conductive terminal assembly 8 includes a first conductive terminal 81 and a second conductive terminal 82. The temperature sensor 100 further comprises a sealing ring 2, a gasket 4, an insulating block 9, heat-conducting glue 6 and a thermistor assembly 5.

The housing 7 is fixed to the fixing portion 3. The housing 7 and the fixing portion 3 may be made of metal, and the housing 7 may be fixed to the fixing portion 3 by welding. The fixing portion 3 is used to mount the temperature sensor 100 to a component to be measured, such as an exhaust manifold (not shown). The fixing portion 3 may be a nut, and includes a force application portion 31 and a threaded portion 32 connected to the force application portion 31. By rotating the force application portion 31, the threaded portion 32 is connected to the member to be measured. In other embodiments, the fixing portion 3 can be fixed with the component to be tested by other means, such as a snap-fit manner.

The connection end 1 is fixed to the fixing portion 3. The connection end 1 may be fixed to the fixing portion 3 by crimping. The connecting end 1 may be made of plastic material. The conductive terminal group 8 is fixed to the connection terminal 1 by means of injection molding. In other embodiments, the conductive terminals 8 may also be fixed to the connection end by means of assembly. One end of the conductive terminal group 8 is inserted into the insertion port 12 of the connection terminal 1, so that an electrical connection (not shown) with an external connector can be realized. In order to achieve a better sealing effect, the sealing ring 2 is arranged between the connecting end 1 and the fixing part 2.

The first and second conductive terminals 81 and 82 pass through the insulating block 9. An insulating block 9 is fixed inside the housing 7. The insulator 9 is used to electrically insulate and separate the first conductive terminal 81 and the second conductive terminal 82, thereby avoiding short circuit.

The thermistor assembly 5 is disposed within the housing 7. The thermistor assembly 5 includes a thermistor 53, a first leg portion 51 connecting the thermistor 53 with a first end portion 811, and a second leg portion 52 connecting the thermistor 53 with a second end portion (82). In order to achieve a good heat conduction effect and a good fixing effect, heat conduction glue 6 for coating the thermistor assembly 5 is arranged in the shell 7.

The housing 7 includes a main body portion 71 having a cylindrical shape, a measuring end 73 having a diameter smaller than that of the main body portion 71, and a connecting portion 72 connecting the measuring end 73 and the main body portion 71 and having a tapered shape. The thermistor 53 is disposed within the measurement end 73.

The first conductive terminal 81 includes a first end 811 disposed within the housing 7 and the second conductive terminal 82 includes a second end 821 disposed within the housing 7. The edges of the first end 811 and/or the second end 821 near the housing 7 are chamfered. This arrangement can prevent the end edge of the conductive terminal group 8 from colliding with the inner wall of the case 7 to generate metal chips when the conductive terminal group 8 is fitted into the case. Since the gap between the first leg 51 and the second leg 52 is small, if metal debris is generated, the generated metal debris falls between the first leg 51 and the second leg 52 to cause a short circuit between the first leg 51 and the second leg 52, thereby affecting the use of the temperature sensor 100.

First end 811 and second end 821 are flat, chamfered portion 8111 of first end 811 is provided at an edge distant from second end 821, and chamfered portion 8211 of second end 821 is provided at an edge distant from first end 811. The chamfer 8111 of the first end 811 and the chamfer 8211 of the second end 821 may be rounded or square.

The temperature sensor 100 may be used for temperature measurement of an exhaust gas recirculation system, and may also be used for temperature measurement in other scenarios.

Although in this embodiment the connecting end 1 is fixed directly to the fixing portion 3. In other embodiments, the connecting end 1 may be connected to the fixing portion 3 by a cable connection. A temperature sensor of this type is also within the scope of this patent.

It will be apparent to those skilled in the art that various modifications and variations can be made to the above-described exemplary embodiments of the present invention without departing from the spirit and scope of the invention. Thus, it is intended that the present invention cover the modifications and variations of this invention provided they come within the scope of the appended claims and their equivalents.

Claims

1. The utility model provides a temperature sensor, its includes link (1), fixed part (3), first conductive terminal (81), second conductive terminal (82) and shell (7), shell (7) are fixed to fixed part (3), first conductive terminal (81) are including arranging first tip (811) in shell (7) in, second conductive terminal (82) are including arranging second tip (821) in shell (7) in, its characterized in that, the border that first tip (811) and/or second tip (821) are close to shell (7) is equipped with the chamfer.

2. The temperature sensor of claim 1, wherein the chamfer is a rounded corner.

3. The temperature sensor according to claim 1, further comprising an insulating block (9), wherein the first conductive terminal (81) and the second conductive terminal (82) pass through the insulating block (9).

4. A temperature sensor according to claim 3, characterised in that the insulating block (9) is fixed into the housing (7).

5. A temperature sensor according to claim 1, further comprising a thermistor assembly (5) disposed in the housing (7) and a thermally conductive glue (6) covering the thermistor assembly (5), the thermistor assembly (5) comprising a thermistor (53) and a first leg (51) connecting the thermistor (53) with the first end (811) and a second leg (52) connecting the thermistor (53) with the second end (821).

6. The temperature sensor according to claim 1, wherein the connecting end (1) and the fixing portion (3) are fixed together, and the first conductive terminal (81) and the second conductive terminal (82) are fixed to the connecting end (1) by injection molding.

7. A temperature sensor according to claim 1, wherein the housing (7) is made of a metallic material.

8. The temperature sensor of claim 1, wherein the temperature sensor is used for temperature measurement of an exhaust gas recirculation system.

9. A temperature sensor according to claim 1, wherein the fixing portion (3) is a nut.

10. Temperature sensor according to claim 1, characterized in that said first (811) and second (821) end portions are flat-sheet shaped, said chamfer (8111) of the first end portion (811) being provided at the edge remote from the second end portion (821), said chamfer (8211) of the second end portion (821) being provided at the edge remote from the first end portion (811).