Connector temperature detection device for new energy automobile

Abstract

The utility model discloses a connector temperature detection device for a new energy automobile, which relates to the technical field of connectors and comprises a temperature sensor, a plastic shell and a heat-conducting silica gel body. The heat conduction part of the temperature sensor is plastically packaged in the plastic shell, the plastic shell is fixed on the PCB, the positions of the plastic shell and the temperature sensor are limited, the temperature sensor does not shift, the heat conduction silica gel body is provided with a guide hole so as to be attached to the side surface of the plastic shell, and it is guaranteed that a large heat conduction area exists between the heat conduction part and the side wall of the jack. The accuracy of temperature detection is improved; a contact wall of a heat-conducting silica gel body is arranged, and the outer side of the contact wall is matched with the outer wall of the jack, so that the contact wall is in interference fit with the side wall of the jack due to the friction force of the side wall of the jack and can be tightly fit with the heat-conducting silica gel body in the process that the jack is axially arranged in the socket, and the device is relatively high in temperature detection accuracy and precision; and the temperature detection performance is better.

Description

TECHNICAL FIELD

[0001] The utility model relates to connector technical field, especially a connector temperature detection device for new energy automobile. BACKGROUND

[0002] The charging socket needs to detect the temperature inside the charging cavity during the charging process, and the detection can prevent the occurrence of overheating, thereby avoiding possible fire risk and equipment damage. The national standard requires that the temperature deviation be less than ± 3K, and the requirement for temperature detection is high. The current traditional charging socket temperature detection device mainly has the following structures: structure one is to design a patch type temperature sensor on a PCB, wrap the temperature sensor with heat-conducting silica gel, install a jack, and make the jack as close as possible to the outer layer of the silica gel; structure two is to directly install the temperature sensor in a plastic part, clamp the two pins of the temperature sensor with a reed, wrap the temperature sensor with heat-conducting silica gel, install the jack in the socket first, then make the plastic part close to the jack, and make the heat-conducting silica gel and the jack as close as possible; structure three is to install the jack first, then install the temperature sensor, and finally fill the gap between the temperature sensor and the jack with insulating heat-conducting glue.

[0003] The above-mentioned temperature detection device needs to make the temperature sensor as close as possible to the jack, and keep the temperature sensor and the jack insulated to prevent short circuit. In structure one, the patch type temperature sensor is fixed horizontally on the PCB, and the jack is a vertical jack. The contact surface of the temperature sensor and the side wall of the jack are not in the same plane, the contact area is small, and the temperature sensor may not contact the jack due to jack installation or position error, making it difficult to make the temperature sensor and the heat-conducting silica gel closely adhere. In structure two, the temperature sensor is installed in the plastic part, and the plastic part is close to the jack. It is difficult to control the temperature sensor to adhere to the jack, and the reed may be fatigued due to long-term vibration. In structure three, the temperature sensor needs to be installed separately. Since the temperature sensor is not integrated and fixed in the assembly, it is easy to be displaced. When filling the insulating heat-conducting glue, it is difficult to ensure the close distance with the jack, and the installation cost of this structure is high. UTILITY MODEL CONTENTS

[0004] The utility model discloses a purpose at: in view of the temperature sensor and the contact surface of the jack of the connector temperature detection structure in the prior art are small or the degree of adhesion is lower, lead to the problem of temperature detection precision is not high, provide a connector temperature detection device for new energy automobile, include: temperature sensor, plastic shell and heat conduction silica gel body, the heat conduction part of temperature sensor is covered and fixed in plastic shell, plastic shell is cylindrical, heat conduction silica gel body is shaped and is equipped with the guide hole of axial, the shape of guide hole and plastic shell is matched, and then make plastic shell can be fixed in the guide hole of interference fit, heat conduction silica gel body is equipped with contact wall, the outside of contact wall and the jack outer wall cooperation, and then make the contact wall can be interference fit in the outer wall of jack.

[0005] The utility model discloses the scheme, through setting plastic shell is cylindrical, the heat conduction part of temperature sensor is covered in plastic shell, and then setting shaped heat conduction silica gel body, the shape of guide hole and plastic shell is matched, in the process of plastic shell together with temperature sensor axial installation in heat conduction silica gel body, through the effect of guide hole, make plastic shell can be fixed in the guide hole of interference fit, on the one hand, limit the position of plastic shell and temperature sensor, temperature sensor will not shift, on the other hand, since the axial direction of jack is the axial extension direction of jack lateral wall, cylindrical and the heat conduction hole of axial cooperation, guarantee that the heat conduction area between heat conduction part and jack lateral wall is larger, thereby improve the accuracy of temperature detection, and then through setting the contact wall of heat conduction silica gel body, the outside of contact wall and jack outer wall cooperation, in the process of jack axial installation in socket, contact wall provides the installation guide channel for jack, after jack is installed, contact wall is interference fit in the lateral wall of jack by the friction of jack lateral wall, make heat conduction silica gel body and the lateral wall of jack adhesion degree is higher, thereby improve the temperature detection precision of the device, have more excellent temperature detection performance.

[0006] Preferably, the connector temperature detection device for new energy automobile, the plastic shell is perpendicular to the board surface of PCB board, and is fixedly connected to the PCB board, the fixed position of plastic shell and the preset position of guide hole correspond.

[0007] As a preferred scheme of the utility model, by setting plastic shell vertical fixed on the board surface of PCB board, the fixed position of plastic shell and the preset position of guide hole correspond, in the installation process, by installing PCB board in the appropriate position of socket, the position and installation angle of guide hole and plastic shell can be realized corresponding, not only convenient for installation alignment, but also can avoid the temperature sensor contact bad condition caused by installation mechanical dimension error, further improve the stability of the device use and the reliability of detection.

[0008] Preferably, the temperature detection device for the connector of the new energy automobile, the temperature sensor is exposed to the upper end of the plastic shell, and is fixed through the PCB board.

[0009] As a preferred scheme of the utility model, through the above setting, the position layout of the temperature sensor and the plastic shell is more compact, the position arrangement is more easily positioned on the PCB board, the device is more easily positioned during installation, the risk of accidental touch and scratch damage is reduced, and the firmness of the device connection and use is enhanced.

[0010] Preferably, the temperature detection device for the connector of the new energy automobile, the temperature sensor is exposed to the upper end of the plastic shell, and is fixed through the PCB board.

[0011] As a preferred scheme of the utility model, through the above setting, the position layout of the temperature sensor and the plastic shell is more compact, the position arrangement is more easily positioned on the PCB board, the device is more easily positioned during installation, the risk of accidental touch and scratch damage is reduced, and the firmness of the device connection and use is enhanced.

[0012] Preferably, the temperature detection device for the connector of the new energy automobile, the temperature sensor is exposed to the upper end of the plastic shell, and is fixed through the PCB board.

[0013] As a preferred scheme of the utility model, through the above setting, the position layout of the temperature sensor and the plastic shell is more compact, the position arrangement is more easily positioned on the PCB board, the device is more easily positioned during installation, the risk of accidental touch and scratch damage is reduced, and the firmness of the device connection and use is enhanced.

[0014] Preferably, the temperature detection device for the connector of the new energy automobile, the temperature sensor is exposed to the upper end of the plastic shell, and is fixed through the PCB board.

[0015] As an optimal scheme of the utility model, the lower end of the plastic shell is set as a spherical shape, on the one hand, the plastic shell is easy to be inserted into the guide hole during installation, on the other hand, the arc-shaped structure of the heat conduction part can protect the heat conduction part of the temperature sensor, avoid the axial force of installation from bending or damaging the end of the temperature sensor, reduce the installation damage rate of the device, and further enhance the service life of the device.

[0016] Preferably, the contact wall is arc-shaped and bends towards the side wall of the jack.

[0017] As an optimal scheme of the utility model, the side wall of the jack is usually arc-shaped, the contact wall is set as arc-shaped and bends towards the side wall of the jack, after the jack is installed in the socket, the contact wall of the heat-conducting silica gel body can be in a cladding state with the side wall of the jack, which not only can increase the contact area, but also can further enhance the cladding effect, further improve the detection accuracy, and improve the detection precision of the device.

[0018] In summary, due to the adoption of the above technical scheme, the utility model has the beneficial effects that:

[0019] 1. By limiting the positions of the plastic shell and the temperature sensor, the temperature sensor will not be displaced, the cylindrical plastic shell and the axial heat-conducting hole are matched, a large heat conduction area is ensured between the heat conduction part and the side wall of the jack, and the temperature detection accuracy is improved.

[0020] 2. The outer side of the contact wall cooperates with the outer wall of the jack, in the process of installing the jack in the socket in the axial direction, the contact wall provides an installation guide channel for the jack, after the jack is installed, the contact wall is in interference fit with the side wall of the jack due to the friction of the side wall of the jack, the contact degree of the heat-conducting silica gel body and the side wall of the jack is high, the temperature detection precision of the device, and the temperature detection performance is better. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 is a state schematic view a of the plastic shell and the PCB board of the utility model;

[0022] Figure 2 is a state schematic view b of the plastic shell and the PCB board of the utility model;

[0023] Figure 3 is a structure schematic view of the temperature sensor of the utility model;

[0024] Figure 4 is a state schematic view a of the heat-conducting silica gel body installed in the socket of the utility model;

[0025] Figure 5is a state diagram of the heat-conducting silica gel body installed in the socket of the utility model;

[0026] Figure 6 is a state diagram of the PCB installed in the socket of the utility model;

[0027] Figure 7 is a cross-sectional view of the utility model installed in the socket;

[0028] Figure 8 is a cross-sectional view of the utility model installed in the socket a;

[0029] Figure 9 is a cross-sectional view of the utility model installed in the socket b;

[0030] Icon: 1, temperature sensor; 11, heat conducting part; 12, electrical signal connector; 2, plastic shell; 3, heat-conducting silica gel body; 31, guide hole; 32, contact wall; 4, jack; 5, PCB. DETAILED DESCRIPTION

[0031] The utility model will be described in detail below with reference to the drawings.

[0032] In order to make the purpose, technical scheme and advantage of the utility model more clear and obvious, the utility model will be described in further detail below with reference to the drawings and examples. It should be understood that the specific examples described herein are only used to explain the utility model, and are not used to limit the utility model.

[0033] Example 1:

[0034] As shown in Figures 1-9 The utility model provides a kind of connector temperature detection device for new energy automobile, it include: temperature sensor 1, plastic shell 2 and heat-conducting silica gel body 3;The heat conducting part 11 of temperature sensor 1 is covered and fixed in plastic shell 2;Plastic shell 2 is cylindrical;Heat-conducting silica gel body 3 is formed into shape, and is equipped with axial guide hole 31;Guide hole 31 and the shape of plastic shell 2 are matched, so that plastic shell 2 can be fixed in guide hole 31 with interference fit;Heat-conducting silica gel body 3 is equipped with contact wall 32;The outside of contact wall 32 and the outer wall of jack 4 cooperate, so that contact wall 32 can be interference fit on the outer wall of jack 4.

[0035] It should be noted that the temperature sensor 1 is the temperature sensor 1 that can be used for connector, and specific structure can be set as the sheet temperature sensor 1 that can be axially installed in plastic shell 2 body, specifically, with reference to Figure 3 Temperature sensor 1 includes upper electrical signal connector 12 and lower heat conducting part 11.

[0036] The plastic shell 2 of the utility model can be fixed on PCB 5, with reference toFigure 1 and Figure 2 As shown in the drawings, specifically, the plastic shell 2 is perpendicular to the board surface of the PCB board 5, and is fixedly connected to the PCB board 5; the fixed position of the plastic shell 2 corresponds to the preset position of the guide hole 31. More specifically, the electrical signal connector 12 of the temperature sensor 1 is exposed to the upper end of the plastic shell 2 and is fixed through the PCB board 5; the upper end of the plastic shell 2 is welded to the PCB board 5.

[0037] As shown in the drawings, the plug-in hole 4 is understood as a professional technical term: the plug-in hole 4 component in the connector, the inside of the plug-in hole 4 forms a cylindrical cavity, and the cavity is used for connecting the pin of the plug end of the connector; it should be noted that the axial direction is understood as the axial direction of the cylindrical cavity of the plug-in hole 4, that is, the direction of the plug-in of the pin and the plug-in hole 4. Figures 7-9 The "matching" of the utility model is understood as, for example, the shape of the guide hole 31 and the plastic shell 2 is matched, and it is understood that the inner side wall shape of the guide hole 31 and the outer side wall shape of the plastic shell 2 are both curved surfaces, and the bending direction and the curvature size are equal; the outer side of the contact wall 32 and the outer wall of the plug-in hole 4 are matched, and it is understood that the contact wall 32 can be tangent to the outer wall of the plug-in hole, specifically, it can be a curved surface, the bending direction of the contact wall 32 and the bending direction of the outer wall of the plug-in hole 4 are the same, and the curvature size is equal; specifically, the contact wall 32 is in the shape of a circular arc that bends to the side wall of the plug-in hole 4, so as to realize more closely fitting on the side wall of the plug-in hole 4.

[0038] It should be noted that the heat-conducting silica gel body 3 is understood as an object made of silica gel material with insulation and heat conduction, and the plastic forming is understood as that the shape and state of the heat-conducting silica gel body 3 are stable, and have elastic properties, and can be in interference fit contact connection with the outer wall of the plastic shell 2 and the plug-in hole 4.

[0039] In order to adapt to be used in different sockets, specifically, the detection device provided by the utility model comprises at least two heat-conducting silica gel bodies 3, each heat-conducting silica gel body 3 comprises at least two guide holes 31; the number of temperature sensors 1 and plastic shells 2 is equal to the number of guide holes 31; the heat-conducting silica gel body 3 comprises at least two contact walls 32.

[0040] As shown in the drawings, the utility model is suitable for a three-phase connector, and the three-phase connector contains the state diagram of a socket with four plug-in holes 4;

[0041] Figure 1 、 Figure 4 、 Figure 6 、 Figure 7 and Figure 8 As shown in the drawings, the utility model is suitable for a three-phase connector, and the three-phase connector contains the state diagram of a socket with four plug-in holes 4; Figure 2 、 Figure 5 and Figure 9 ​As shown, the utility model is suitable for direct current connector, direct current connector contains two jacks 4's socket diagram, through adjusting temperature sensor 1's in plastic shell 2's plastic package height, can realize the function of adjusting detection position, through optimizing the quantity and shape design of heat conduction silica gel body 3, the quantity and position of plastic shell 2 body are cooperatively arranged, can realize installation in two kinds of connectors.

[0042] The utility model discloses, specifically, refer to Figure 1 And Figure 2 As shown, the lower end of plastic shell 2 is spherical with a smaller diameter than the upper part; the lower end of heat conduction part 11 is arc-shaped.

[0043] It should be noted that the contact wall 32 is understood to be provided on the outside of the heat-conducting silica gel body 3 and matches the shape of the outer wall of the jack 4, and is used to be in interference fit and contact connection with the outer wall of the jack 4; specifically, refer to Figure 7 、 Figure 6 And Figure 5 As shown, the contact wall 32 is arc-shaped and bends towards the side wall of the jack 4 to achieve a closer fit on the side wall of the jack 4.

[0044] The utility model installation process example: first, heat-conducting silica gel body 3 is installed into the socket shell, then the PCB assembled with temperature sensor 1 and plastic shell 2 is installed into the socket shell, so that the plastic shell 2 and the temperature sensor 1 are interference connected to the guide hole 31 of the heat-conducting silica gel body 3, finally, the jack 4 is installed, the jack 4 and the heat-conducting silica gel body 3 have a certain guide angle and interference amount, so that the jack 4 can be axially installed, and after installation is completed, it can be closely fitted with the heat-conducting silica gel body 3.

[0045] The above only for the preferred embodiment of the utility model has, and does not use to limit the utility model, any modification, equivalent replacement and improvement etc. made within the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. A connector temperature detection device for a new energy vehicle, characterized in that, It includes temperature sensor (1), plastic shell (2) and heat-conducting silica gel body (3); the heat-conducting part (11) of the temperature sensor (1) is covered and fixed in the plastic shell (2); the plastic shell (2) is cylindrical; the heat-conducting silica gel body (3) is molded and provided with axial guide hole (31); the guide hole (31) and the shape of the plastic shell (2) are matched, so that the plastic shell (2) can be fixed in the guide hole (31) by interference fit; the heat-conducting silica gel body (3) is provided with contact wall (32); the outer side of the contact wall (32) and the outer wall of the jack (4) are matched, so that the contact wall (32) can be interference fit on the outer wall of the jack (4). The plastic shell (2) is perpendicular to the board surface of the PCB board (5), and is fixedly connected to the PCB board (5); the fixed position of the plastic shell (2) corresponds to the preset position of the guide hole (31). 2.The connector temperature detection device for a new energy vehicle according to claim 1, characterized in that, The electrical signal connector (12) of the temperature sensor (1) is exposed to the upper end of the plastic shell (2) and fixed through the PCB board (5); the upper end of the plastic shell (2) is welded to the PCB board (5). 3.The connector temperature detection device for a new energy vehicle according to claim 1, characterized in that, It includes at least two heat-conducting silica gel bodies (3), each of which includes at least two guide holes (31); the number of temperature sensors (1) and plastic shells (2) is equal to the number of guide holes (31).

4. The connector temperature detection device for a new energy vehicle according to claim 1, characterized in that, The heat-conducting silica gel body (3) includes at least two contact walls (32).

5. The connector temperature detection device for a new energy vehicle according to claim 1 or 4, characterized in that, The lower end of the plastic shell (2) is spherical with a smaller diameter than the upper part; the lower end of the heat-conducting part (11) is arc-shaped. 6.The connector temperature detection device for a new energy vehicle of claim 1, wherein, The contact wall (32) is arc-shaped and bends towards the side wall of the jack (4).

7. The connector temperature detection device for a new energy vehicle according to claim 1, characterized in that, ​

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