CN209541928U - Heat-conducting piece, temperature sensor assembly and connector - Google Patents

Abstract

The utility model discloses a heat conducting part, a temperature sensor assembly and a connector. The heat-conducting member includes: a heat-conducting part configured to be in contact with the temperature sensor and the object to be measured; and a mounting part configured to connect the heat-conducting part to the temperature sensor; wherein the The heat conduction part is provided with a first contact surface; the first contact surface is an arc surface, which is used for contacting the arc-shaped fitting surface on the side body. In the heat conduction element, the temperature sensor assembly and the connector provided by the utility model, the arc-shaped first contact surface on the heat conduction element is in contact with the arc-shaped bonding surface on the measured body. The contact area between the heat conduction part and the measured object is large, which can realize rapid heat transfer effect, so that the temperature sensor can quickly and accurately detect the temperature of the measured object.

Description

Heat conduction parts, temperature sensor components and connectors

technical field

The utility model relates to a heat conducting part, a temperature sensor assembly and a connector.

Background technique

The new energy vehicle can charge the car by setting a charging stand, which can be plugged with an external charging gun. The charging stand includes a connection terminal, one end of the connection terminal is used for plugging with an external charging gun, and the other end of the connection terminal is used for crimping with a wire to realize electrical connection.

With the rapid development of new energy vehicles, fast charging technology has become an effective means to reduce charging time. When charging the car through fast charging technology, due to the characteristics of fast charging technology, the charging stand needs to withstand higher voltage and higher current in a short time. In particular, once the resistance at the crimping point between the wire and the connection terminal increases or there is a short-term overcurrent, the temperature will rise sharply.

In order to detect the temperature of the charging base, especially the temperature at the crimping point between the wire and the connecting terminal, fast response and accurate temperature detection technology has become a necessary means to ensure vehicle safety.

In the existing connector, the temperature sensor is arranged close to the connection terminal, and the heat of the connection terminal is conducted to the temperature sensor through air. This kind of temperature detection technology has a slow response speed and is not accurate enough, which needs to be improved.

In other connectors, the temperature sensor is in contact with the connection terminal through a heat conduction member. However, the conventional heat conduction element and the connecting terminal generally contact through a planar structure. A platform needs to be added on the connecting terminal to realize the planar structure contact between the connecting terminal and the heat conducting member, and the structure is complex and inconvenient to manufacture.

In addition, the contact surface of the existing connecting terminal used for contacting the heat conduction part of the temperature sensor is small, the heat transfer effect is not good, and the response speed of temperature detection is slow and not accurate enough.

Utility model content

One of the purposes of the present utility model is to overcome at least one deficiency in the prior art, and provide a heat conduction element, a temperature sensor assembly and a connector capable of rapidly detecting the temperature of a measured object.

In order to achieve the above purpose, the utility model is realized through the following technical solutions:

According to the first aspect of the present invention, a heat conducting element for conducting heat between a temperature sensor and a measured object is provided. The heat conductor includes:

a heat conduction portion configured to be in contact with the temperature sensor and the object to be measured, respectively; and

a mounting part configured to connect the heat conducting part to a temperature sensor;

Wherein, the heat conduction part is provided with a first contact surface;

The first contact surface is an arc surface, which is used for contacting the arc-shaped fitting surface on the side body.

Optionally, the first contact surface is an arc surface for contacting with the abutment surface of the connection terminal.

Optionally, the heat conduction part and the installation part surround and form a certain area for accommodating part or all of the sensors.

Optionally, the mounting part is at least partially disposed around the temperature sensor.

Optionally, the heat conduction part is provided with a second contact surface;

The second contact surface is used to contact with the bonding surface of the temperature sensor;

The first contact surface and the second contact surface are disposed on opposite sides of the heat conduction part.

Optionally, the second contact surface is a plane for contacting with the bonding surface of the temperature sensor.

Optionally, the heat conduction part includes a heat conduction silica gel pad.

Optionally, the heat conduction element is one piece.

According to a second aspect of the present invention, a temperature sensor assembly is provided. The temperature sensor package consists of:

temperature sensor; and

The above-mentioned heat-conducting member;

Wherein, the heat conducting element is set on the temperature sensor and partially wraps the temperature sensor.

Optionally, the heat conduction part is provided with a second contact surface;

The first contact surface and the second contact surface are disposed on both sides of the heat conduction part facing away from each other;

The second contact surface is in contact with the bonding surface of the temperature sensor.

Optionally, the second contact surface is a plane.

Optionally, the heat conduction element is box-shaped with at least one side opening, and the heat conduction element is provided with a box cavity; the temperature sensor is disposed in the box cavity.

Optionally, the installation part includes a top wall, a side wall and a bottom wall;

The top wall is opposite to the heat conduction part and arranged at intervals;

The side wall is opposite to the bottom wall and arranged at intervals;

The heat conducting part, the top wall, the side wall and the bottom wall are sequentially connected to form a box cavity;

The temperature sensor is arranged in the box cavity.

Optionally, the temperature sensor is connected with a wire;

The heat conducting member is provided with a limiting groove;

The wire passes through the limiting slot.

According to a third aspect of the present invention, a connector is provided. This connector includes:

connection terminals having curved mating surfaces; and

the above-mentioned temperature sensor assembly;

Wherein, the temperature sensor assembly is installed on the connecting terminal, so that the first contact surface is in contact with the arc-shaped fitting surface on the connecting terminal.

Optionally, the connecting terminal has a cylindrical surface;

The first contact surface is an arc surface;

The arc-shaped surface is in contact with the arc-shaped fitting surface of the connecting terminal.

Optionally, the connector is provided with a positioning part;

The temperature sensor assembly is fixedly connected to the positioning portion, so that the first contact surface is in contact with the bonding surface of the connecting terminal.

Optionally, the connector is a charging socket of an electric vehicle.

Compared with the prior art, in the heat conduction element, the temperature sensor assembly and the connector of the present invention, the arc-shaped first contact surface on the heat conduction element is in contact with the arc-shaped fitting surface on the measured body. The contact area between the heat conduction part and the measured object is large, which can realize rapid heat transfer effect, so that the temperature sensor can quickly and accurately detect the temperature of the measured object.

The measured object can be set as a connection terminal. The first contact surface of the heat-conducting member is in contact with the bonding surface of the connection terminal, and there is no need to add a process to the connection terminal to increase the platform, and the structure is simplified and easy to manufacture.

Other features and advantages of the present invention will become clear from the following detailed description of exemplary embodiments of the present invention with reference to the accompanying drawings.

Description of drawings

Fig. 1 is a schematic structural diagram of a connector provided by an embodiment of the present invention.

FIG. 2 is a schematic diagram of the structure of the connector in FIG. 1 without the baffle.

FIG. 3 is a schematic diagram of the installation of the connection terminal and the temperature sensor assembly in the connector of FIG. 1 .

FIG. 4 is a schematic structural diagram of a temperature sensor assembly in the connector of FIG. 1 .

FIG. 5 is a schematic structural diagram of the heat conducting member in the temperature sensor assembly of FIG. 4 .

FIG. 6 is a structural schematic diagram of another viewing angle of the heat conducting element in FIG. 5 .

Among them, 1-heat conduction part; 10-heat conduction part; 102-first contact surface; 104-second contact surface; 20-installation part; 22-top wall; 24-side wall; 26-bottom wall; 28-box cavity ; 29-limiting groove; 3-housing; 4-printed circuit board; 5-temperature sensor; 6-wire; 7-secondary lock; 72-positioning part;

Detailed ways

Below in conjunction with accompanying drawing, the utility model is described in detail:

According to an embodiment of the present invention, a connector is provided. Referring to FIGS. 1 to 4 , the connector includes a housing 3 , a secondary lock 7 , a printed circuit board 4 , a baffle 9 , connecting terminals 8 and a temperature sensor assembly. An accommodating hole is provided on the housing 3, and the connection terminal 8 is at least partially accommodated and installed in the accommodating hole.

The temperature sensor assembly includes a temperature sensor 5 and a heat conducting member 1 for conducting heat between the temperature sensor 5 and the connecting terminal 8 . In this embodiment, the specific type and number of connecting terminals 8 can be determined according to actual needs, which can be either male terminals or female terminals; it can be one, two, or other numbers.

The heat conduction element 1 includes a heat conduction portion 10 and a mounting portion 20 . The heat conducting part 10 is made of a heat conducting material for transferring heat. Preferably, the heat conduction part 10 may include a heat conduction silica gel pad.

The heat conduction part 10 is configured to be in contact with the temperature sensor 5 and the connection terminal 8 respectively. The installation part 20 connects the heat conduction part 10 to the temperature sensor 5 , so that the heat conduction part 10 is in contact with the temperature sensor 5 .

The surface of the connecting terminal 8 for contacting with the heat conducting part 10 is an arc-shaped bonding surface. The heat conducting part 10 is provided with a first contact surface 102 . The first contact surface 102 is an arc surface for contacting with the arc-shaped fitting surface on the connecting terminal 8 .

The shape of the first contact surface 102 is complementary to the arc-shaped fitting surface of the connection terminal 8 . The temperature sensor assembly is installed on the connection terminal 8 so that the arc-shaped first contact surface 102 is in contact with the arc-shaped bonding surface on the connection terminal 8 .

During the use of the connector, the heat generated when the connecting terminal 8 generates heat can be transferred to the temperature sensor 5 through the heat conducting part 10 . The temperature sensor 5 can detect the temperature of the connecting terminal 8 according to the heat transferred by the heat conducting part 10 .

In order to make the first contact surface 102 and the connecting terminal 8 realize adhering surface contact, in this embodiment, please refer to FIG. 3 and FIG. 4 , the connecting terminal 8 can be set as a shaft-like component. The connection terminal 8 has a cylindrical surface. The first contact surface 102 is correspondingly configured as an arc surface for contacting with the arc-shaped fitting surface on the connecting terminal 8 . The temperature sensor assembly is installed on the connection terminal 8 so that the arc surface of the first contact surface 102 is in contact with a part of the surface of the connection terminal 8 .

In order for the installation part 20 to reliably connect the heat conduction part 10 to the temperature sensor 5, preferably, please refer to Fig. 4 and Fig. 5, the heat conduction element 1 is set on the temperature sensor 5, so that the The part of the heat conduction element 1 wraps the temperature sensor 5 . The temperature sensor 5 and the heat conduction element 1 can be interference fit, so as to realize the abutting contact between the heat conduction element 1 and the temperature sensor 5 .

The heat conducting part 10 and the installation part 20 surround and form a certain area for accommodating part or all of the temperature sensor 5 . According to the actual situation, the heat conduction part 10 and the installation part 20 can be arranged in a separate form, or they can be arranged in one piece and integrally formed. The mounting portion 20 is at least partially disposed around the temperature sensor 5 .

The heat conducting element 1 can be set in a box shape with at least one side opening. The heat conducting element 1 is provided with a box cavity 28 . At least part of the structure of the temperature sensor 5 is disposed in the box cavity 28 . Specifically, the installation portion 20 includes a top wall 22 , a side wall 24 and a bottom wall 26 . The top wall 22 is opposite to the heat conducting part 10 and arranged at intervals. The side wall 24 is opposite to the bottom wall 26 and arranged at intervals. The heat conducting part 10 , the top wall 22 , the side wall 24 and the bottom wall 26 are sequentially connected to form a box cavity 28 with openings on both sides. The temperature sensor 5 is disposed in the box cavity 28 .

In order to enable the heat conduction part 10 to have a larger contact area with the temperature sensor 5 , in this embodiment, please refer to FIG. 6 , the heat conduction part 10 is provided with a second contact surface 104 . The first contact surface 102 and the second contact surface 104 are disposed on opposite sides of the heat conduction portion 10 . The second contact surface 104 is in contact with the bonding surface of the temperature sensor 5 .

The temperature sensor 5 can be arranged in a substantially cuboid structure. The surface of the temperature sensor 5 used to contact the heat conducting element 1 may be set as a plane. The second contact surface 104 is correspondingly set as a plane. The heat conduction part 10 and the temperature sensor 5 realize adhering surface contact through a planar structure.

Please refer to FIG. 4 , the temperature sensor 5 can be connected with a wire 6 to transmit a temperature signal to the printed circuit board 4 . The heat conducting element 1 can be provided with a limiting groove 29 . The limiting groove 29 can be set through the heat conducting element 1 . The wire 6 passes through the limiting slot 29 . In this way, the part of the wire 6 adjacent to the temperature sensor 5 is limited and does not shake, which prevents the part where the wire 6 is connected to the temperature sensor 5 from being damaged due to frequent shaking.

In this embodiment, please refer to FIG. 1 and FIG. 2 , the printed circuit board 4 can be fixedly connected to the housing 3 . Electronic components, plugs or sockets for electrical connection, etc. can also be arranged on the printed circuit board 4 according to actual needs. The conductor 6 is pluggably connected to the printed circuit board 4 through a plug-in structure.

The secondary lock 7 can be arranged as a flat structure. The secondary lock 7 is disposed between the casing 3 and the printed circuit board 4 . The secondary lock 7 is movable along the radial direction of the connecting end 8 to move between an initial position and a final locking position. When the secondary lock 7 is in the final lock position, the connecting terminal 8 is restricted from moving in the axial direction. According to a preferred embodiment of the present utility model, the connecting terminal 120 can be disposed through the secondary lock 7 .

In order to locate the installation position of the temperature sensor assembly, the connector may be provided with a positioning portion 72 . The temperature sensor assembly is fixedly connected to the positioning portion 72 so that the first contact surface 102 is in contact with the bonding surface of the connecting terminal 8 . For example, the positioning portion 72 may be a housing provided on the secondary lock 7, the housing is provided with a housing cavity, at least part of the structure of the temperature sensor assembly is accommodated and installed in the housing cavity.

The baffle 9 is arranged on the side of the printed circuit board 4 facing away from the secondary lock 7 and connected to the housing 3 . The baffle plate 9 stops and limits the printed circuit board 4 to prevent the printed circuit board 4 from falling off.

In this embodiment, the connector may be a charging socket of an electric vehicle. One end of the connection terminal 8 is used for power distribution connection with the external charging gun, and the other end is electrically connected with the battery of the electric vehicle. When the external charging gun is mated with the connecting terminal 8 , the car battery can be charged through the connecting terminal 8 . The temperature sensor 5 can quickly and accurately detect the temperature of the connecting terminal 8 .

It can be understood that the connecting terminal 8 can also be replaced by other measured objects whose temperature needs to be detected. The heat conducting element 1 is used to conduct the heat generated by the measured object to the temperature sensor 5 so that the temperature sensor 5 can reliably detect the temperature of the measured object.

Compared with the prior art, the arc-shaped first contact surface on the heat conduction element is in contact with the arc-shaped fitting surface of the object to be tested. The contact area between the heat conduction part and the measured object is large, which can realize rapid heat transfer effect, so that the temperature sensor can quickly and accurately detect the temperature of the measured object.

The measured object can be set as a connection terminal. The first contact surface of the heat-conducting member is in contact with the bonding surface of the connection terminal, and there is no need to add a process to the connection terminal to increase the platform, and the structure is simplified and easy to manufacture.

The above are only preferred embodiments of the present utility model, and are not intended to limit the scope of protection of the present utility model. Any modification, equivalent replacement or improvement within the spirit of the present utility model is covered by the claims of the present utility model. .

Claims (18)

1. a kind of for thermally conductive heat-conducting piece between temperature sensor and measured body characterized by comprising

Heat-conducting part, for being placed in contact with respectively with temperature sensor and measured body；With

Mounting portion, the mounting portion are configured to for the heat-conducting part being arranged with being connected to temperature sensor；

Wherein, the heat-conducting part is provided with the first contact surface；

First contact surface is cambered surface, for being bonded face contact with by arc on lateral body.

2. heat-conducting piece according to claim 1, it is characterised in that:

First contact surface is arc surface, for being bonded face contact with connection terminal.

3. heat-conducting piece according to claim 1, it is characterised in that:

The heat-conducting part and the mounting portion surround to form a region determined, for accommodating portion or whole sensors.

4. heat-conducting piece according to claim 1, it is characterised in that:

The mounting portion is arranged at least partially about temperature sensor.

5. heat-conducting piece according to claim 4, it is characterised in that:

The heat-conducting part is provided with the second contact surface；

Second contact surface is used to be bonded face contact with temperature sensor；

First contact surface and second contact surface are set to the two sides of the heat-conducting part backwards.

6. heat-conducting piece according to claim 5, it is characterised in that:

Second contact surface is plane, for being bonded face contact with temperature sensor.

7. heat-conducting piece according to claim 1, it is characterised in that:

The heat-conducting part includes thermal conductive silicon rubber mat.

8. heat-conducting piece described in any one of -7 according to claim 1, it is characterised in that:

The heat-conducting piece is integrated.

9. a kind of temperature sensor assembly characterized by comprising

Temperature sensor；With

The described in any item heat-conducting pieces of claim 1 to 8；

Wherein, the heat-conducting piece is sleeved on the temperature sensor, and temperature sensor described in portion envelops.

10. temperature sensor assembly according to claim 9, it is characterised in that:

The heat-conducting part is provided with the second contact surface；

First contact surface and second contact surface are set to the two sides of the heat-conducting part backwards；

Second contact surface is bonded face contact with the temperature sensor.

11. temperature sensor assembly according to claim 10, it is characterised in that:

Second contact surface is plane.

12. temperature sensor assembly according to claim 9, it is characterised in that:

The heat-conducting piece is with the box-like of an at least side opening, and the heat-conducting piece is provided with box chamber；The temperature sensor is set It is intracavitary to be placed in the box.

13. temperature sensor assembly according to claim 12, it is characterised in that:

The mounting portion includes roof, side wall and bottom wall；

The roof is opposite with the heat-conducting part and interval is arranged；

The side wall is opposite with the bottom wall and interval is arranged；

The heat-conducting part, the roof, the side wall and the bottom wall are sequentially connected, and surround box chamber.

14. temperature sensor assembly according to claim 9, it is characterised in that:

The temperature sensor is connected with conducting wire；

The heat-conducting piece is provided with limiting slot；

The conducting wire passes through the limiting slot.

15. a kind of connector characterized by comprising

Connection terminal has arc binding face；With

Temperature sensor assembly described in any one of claim 9 to 14；

Wherein, the temperature sensor assembly is installed on the connection terminal, makes first contact surface and the connecting pin Arc binding face is bonded face contact on son.

16. connector according to claim 15, it is characterised in that:

The connection terminal has cylindrical surface；

First contact surface is arc surface；

The arc surface is bonded face contact with connection terminal part surface.

17. connector according to claim 15, it is characterised in that:

The connector is provided with positioning region；

The temperature sensor assembly is fixedly connected on the positioning region, so that first contact surface and the connection terminal It is bonded face contact.

18. connector described in any one of 5 to 17 according to claim 1, it is characterised in that:

The connector is the charging socket of electric vehicle.