Thermally conductive structure for charging socket

Abstract

The utility model discloses a heat conduction structural member used for a charging socket, comprising a heat conduction silica gel and a fixing member, the heat conduction silica gel is provided with a plurality of installation fixing structures plugged with the fixing member, a sensor installation position used for installing a temperature sensor, and a cambered surface contacted with a power terminal, and the assembly formed by assembling the whole heat-conducting silica gel and the fixing piece does not affect the installation of other parts of the charging socket and the fixing piece. According to the utility model, the heat-conducting silica gel is added, and the fixed plate and the heat-conducting silica gel are assembled into an assembly, so that the installation of other parts of the charging socket and the fixed part is not influenced, the temperature rise condition of the power terminal is monitored more intuitively, and the monitoring precision and accuracy are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of charging sockets, in particular to a heat conduction structural component used for a charging socket. Background Art

[0002] In the charging socket of new energy vehicles, in order to ensure charging safety, the heating condition of the power terminal needs to be monitored in real time. At present, the temperature monitoring of the power terminal in the charging socket is usually carried out by monitoring the temperature inside the connector shell through the temperature sensor on the PCB board, and the temperature sensor is not in direct contact with the power terminal, so as to monitor the temperature rise change of the power terminal. This method uses the temperature inside the connector shell as the temperature monitoring of the power terminal, which easily causes a large difference between the monitored temperature and the actual temperature of the power terminal, resulting in inaccurate monitoring. Utility Model Content

[0003] The utility model aims to provide a heat conduction structure for a charging socket, which is used to solve the technical problem that in the prior art, the temperature in a connector housing is detected as the temperature monitoring of a power terminal, which easily leads to inaccurate monitoring.

[0004] The utility model solves the above problems through the following technical solutions:

[0005] A heat conduction structural member for a charging socket comprises: a heat conductive silicone and a fixing member, wherein the heat conductive silicone is formed with a plurality of mounting fixing structures plugged with the fixing member, a sensor mounting position for mounting a temperature sensor, and an arc surface in contact with a power terminal, and the entire heat conductive silicone and the fixing member are assembled into an assembly without affecting the installation of other components of the charging socket and the fixing member.

[0006] As a further improvement of the present invention, there are two thermally conductive silica gels, which are relatively arranged at one end of the fixing piece close to the charging socket.

[0007] As a further improvement of the present invention, the heat conduction structure is suitable for a DC charging socket.

[0008] As a further improvement of the utility model, the thermally conductive silica gel has no less than three circular holes as the mounting and fixing structure, and no less than three circular holes have waist holes as the sensor mounting positions, and the lower side of the thermally conductive silica gel is formed with the arc surface opening downward;

[0009] The fixing piece has a cylindrical structure plugged into the installation fixing structure, and the fixing piece is also embedded and fixed with the heat-conducting silica gel.

[0010] As a further improvement of the present invention, a protrusion is formed on one side of the thermally conductive silicone rubber close to the fixing member, and the sensor installation position is located in the protrusion and penetrates the thermally conductive silicone rubber.

[0011] As a further improvement of the present invention, the heat conduction structure is suitable for an AC charging socket.

[0012] As a further improvement of the utility model, the thermally conductive silicone has at least three cylinders as the mounting and fixing structures on one side close to the fixing piece, and an upwardly open concave hole as the sensor mounting position, and the outer side of the thermally conductive silicone is formed with the upwardly open arc surface;

[0013] The fixing piece has a circular hole structure plugged into the installation fixing structure, and the fixing piece is also embedded and fixed with the heat-conducting silica gel.

[0014] As a further improvement of the present invention, a convex portion is formed on one side of the thermally conductive silicone close to the fixing member, and the sensor mounting position is arranged on the convex portion.

[0015] As a further improvement of the present invention, the arc surface is interference fit with the power terminal.

[0016] As a further improvement of the utility model, a PCBA board is installed on the assembly formed by the thermally conductive silicone and the fixing piece. The temperature sensor on the PCBA board is a water drop type thermistor. The contact point of the water drop type thermistor passes through the fixing piece and contacts with the thermally conductive silicone.

[0017] Compared with the prior art, the utility model has the following advantages and beneficial effects:

[0018] (1) The utility model adds thermally conductive silicone and assembles the fixing plate and the thermally conductive silicone into an assembly, which does not affect the installation of other components and fixings of the charging socket. After the fixings are locked for the second time, the thermally conductive silicone and the temperature sensor work closely together to conduct heat, and the temperature rise change information of the power terminal is transmitted through the thermally conductive silicone, thereby improving the accuracy of monitoring.

[0019] (2) The temperature sensor integrated on the PCBA board monitors the temperature of the thermally conductive silicone and then feeds back the changes in terminal temperature rise to improve monitoring accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the structure of the thermal conductive silicone and the fixing parts in Example 1.

[0021] Figure 2 This is a schematic diagram of the installation of the thermal conductive silicone and the fixing parts in Example 1.

[0022] Figure 3 Schematic diagram of the structure of the thermally conductive silica gel in Example 1.

[0023] Figure 4 This is a schematic diagram of the structure of the fixing member in Example 1.

[0024] Figure 5 This is a schematic diagram of the installation of the component assembled with the thermal conductive silicone and the fixing parts and the DC housing in Example 1.

[0025] Figure 6 This is a schematic diagram of the cooperation between the fixing member and the DC housing in Example 1.

[0026] Figure 7 This is a schematic structural diagram of a heat conduction structural component for a charging socket in Example 1.

[0027] Figure 8 Schematic diagram of the interference fit between the thermal conductive silicone and the power terminal in Example 1.

[0028] Fig. 9 This is a schematic diagram of the installation of the thermal conductive silicone and the fixing parts in Example 2.

[0029] Fig.10 Schematic diagram of the structure of the thermally conductive silicone in Example 2.

[0030] Fig.11 This is a schematic diagram of the structure of the fixing member in Example 2.

[0031] Fig.12 This is a schematic diagram of the installation of the component assembled with the thermal conductive silicone and the fixing parts and the DC housing in Example 2.

[0032] Fig.13 This is a schematic diagram of the installation of the component assembled with the thermal conductive silicone and the fixing parts and the PCBA board in Example 2.

[0033] Fig.14 Schematic diagram of the contact points between the component assembled by the thermally conductive silicone and the fixing parts and the water drop type thermistor in Example 2.

[0034] Fig.15 This is a schematic structural diagram of a heat conduction structural component for a charging socket in Example 2.

[0035] Reference numerals:

[0036] 1. Fixing part; 11. Cylindrical structure; 12. Through-hole structure; 13. Open slot; 14. Circular hole structure; 15. Stress-bearing surface; 2. Thermal conductive silicone; 21. Sensor mounting position; 22. Circular hole; 23. Arc surface; 24. Raised part; 25. Cylinder; 3. DC housing; 4. PCBA board; 5. Water-drop type thermistor; 6. Power terminal. DETAILED DESCRIPTION

[0037] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0038] The utility model discloses a heat conduction structural member for a charging socket, comprising:

[0039] The thermally conductive silica gel is formed with a plurality of mounting and fixing structures plugged into the fixing member, a sensor mounting position for mounting the temperature sensor, and an arc surface in contact with the power terminal;

[0040] The fixing parts are assembled with the thermal conductive silicone into a component and installed on the charging socket. Pay attention to the installation direction and installation point. The entire assembly of the thermal conductive silicone and the fixing parts does not affect the installation of other parts and fixing parts of the charging socket.

[0041] Embodiment 1:

[0042] Combined with Figure 1-8 As shown, a heat conduction structure for a charging socket is suitable for a DC charging socket, specifically:

[0043] Structural design of thermal conductive silicone 2:

[0044] The sensor installation position 21 is a reserved position for the temperature sensor, which ensures subsequent temperature monitoring through heat conduction and that the temperature sensor is not damaged before and after the fixing part is moved.

[0045] A plurality of circular holes 22 are used as mounting and fixing structures for the thermally conductive silicone rubber; they cooperate with the cylindrical structure on the fixing piece to ensure that the thermally conductive silicone rubber is positioned around the fixing piece and cannot move upward;

[0046] The arc surface 23 increases the contact area with the power terminal. In this embodiment, the lower side of the thermally conductive silicone is formed with the arc surface that opens downwards;

[0047] The raised portion 24 is located at the rear end of the thermally conductive silicone and is integrally formed with the thermally conductive silicone body, and the sensor mounting position 21 passes through the thermally conductive silicone body and the raised portion. In order to increase the thickness of the thermally conductive silicone, it is embedded multiple times to increase the matching force between the fixing part and ensure that the position of the thermally conductive silicone cannot move on the fixing part.

[0048] Structural design of fixing part 1:

[0049] The cylindrical structure 11 cooperates with the plurality of circular holes 22 on the thermally conductive silicone rubber to ensure that the thermally conductive silicone rubber is positioned around the fixing piece and cannot move upward.

[0050] Through hole structure 12, reserved PCBA board installation position;

[0051] Opening slot 13, reserved for PE terminal installation position;

[0052] In this embodiment, the thermal conductive silicone is plugged into the cylindrical structures 11 of the fixing part through the circular holes 22 to realize the installation relationship between the fixing part and the thermal conductive silicone. Of course, the installation method can also be other methods, not limited to this form. It is only necessary to ensure that the position of the thermal conductive silicone cannot move circumferentially on the fixing part after completion.

[0053] Preferably, in the present embodiment, there are two thermally conductive silicone rubbers which are symmetrically embedded in the fixing piece on the left and right sides; the thermally conductive silicone rubber avoids the through-hole structure of the fixing piece so that the signal terminal can pass through the component assembled by the fixing piece and the thermally conductive silicone rubber; the lower side of the thermally conductive silicone rubber is also formed with an arc surface which contacts the power terminal 6, so that the contact area between the thermally conductive silicone rubber and the power terminal 6 can be increased through the arc surface, thereby improving the monitoring accuracy.

[0054] See attached Figure 5 , install the components assembled by thermal conductive silicone and fixings, ensure that the power terminals are inserted before the components are moved, so as to ensure that the power terminals and terminal sealing rings will not interfere with the thermal conductive silicone. It can also ensure that the thermal conductive silicone and the power terminals can form an interference fit through the displacement of the fixings.

[0055] The assembly composed of the thermally conductive silicone and the fixing parts is installed on the PCBA board 4, and the temperature change information is transmitted through the contact point between the thermally conductive silicone and the water drop type thermistor 5 on the PCBA board, and the thermistor will not be affected before and after the fixing parts move. This effect is achieved by setting the sensor installation position to: a waist hole in which the water drop type thermistor can move up and down, and the waist hole is located in the area enclosed by the circular holes, that is, between the circular holes.

[0056] As a further preferred design, when the power terminal is fixed through the assembly composed of the fixing piece and the thermal conductive silicone, the arc surface of the thermal conductive silicone has an interference fit with the power terminal. Preferably, the interference fit is located on the left and right outer sides of the two power terminals.

[0057] Embodiment 2:

[0058] Combined with Figure 9-15 As shown, a heat conduction structure for a charging socket is suitable for an AC charging socket. Specifically,

[0059] Structural design of thermal conductive silicone:

[0060] The sensor installation position 21 is a reserved position for the temperature sensor, and is used to ensure subsequent temperature monitoring through heat conduction. In this embodiment, the sensor installation position 21 is a concave hole and is open upward.

[0061] A plurality of cylinders 25 cooperate with the circular hole structure 14 on the fixing member to ensure that the thermal conductive silicone rubber is positioned around the fixing member and cannot move upward;

[0062] The arc surface 23 increases the contact area with the power terminal;

[0063] The raised portion 24 is located at the rear end of the thermally conductive silicone and is integrally formed with the thermally conductive silicone body. The sensor mounting position 21 is disposed on the raised portion.

[0064] Structural design of fixings:

[0065] The circular hole structure 14 cooperates with the plurality of cylinders 25 on the thermally conductive silicone rubber to ensure that the thermally conductive silicone rubber is positioned around the fixing piece and cannot move upward.

[0066] Several force-bearing surfaces matched with the thermally conductive silicone rubber are used to ensure that the thermally conductive silicone rubber cannot move on the fixing part.

[0067] Through hole structure 12, reserved for L2 / L3 signal terminal installation position;

[0068] In this embodiment, the thermal conductive silicone is plugged into the plurality of circular hole structures of the fixing part through a plurality of cylinders 25 to achieve the installation relationship between the fixing part and the thermal conductive silicone. Of course, the installation method can also be other methods, not limited to this form, and it is only necessary to ensure that the position of the thermal conductive silicone cannot move circumferentially on the fixing part after completion.

[0069] Preferably, in this embodiment, there are two thermally conductive silicone rubbers, which are symmetrically embedded in the fixing piece on the left and right; the thermally conductive silicone rubber avoids the through-hole structure of the fixing piece so that the L2 / L3 signal terminal can pass through the component assembled by the fixing piece and the thermally conductive silicone rubber; the inner side of the thermally conductive silicone rubber is also formed with an arc surface in contact with the power terminal, so that the contact area between the thermally conductive silicone rubber and the power terminal can be increased through the arc surface, thereby improving the monitoring accuracy.

[0070] Refer to the attached Figure 12-13 , install the components assembled by thermal conductive silicone and fixings, ensure that the power terminals are inserted before the components are moved, so as to ensure that the power terminals and terminal sealing rings will not interfere with the thermal conductive silicone. It can also ensure that the thermal conductive silicone and the power terminals can form an interference fit through the displacement of the fixings.

[0071] Refer to the attached Fig.14 The assembly composed of the thermal conductive silicone and the fixing parts is installed on the PCBA board 4, and the temperature change information is transmitted through the contact point between the thermal conductive silicone and the water drop type thermistor 5 on the PCBA board. Before and after the fixing parts move, the thermistor will not be affected. This effect is achieved by setting the sensor installation position as: the upper end opening in which the water drop type thermistor can move up and down.

[0072] As a further preferred design, when the power terminal is fixed through the assembly formed by the fixing piece and the thermal conductive silicone, the arc surface of the thermal conductive silicone has an interference fit with the power terminal. Preferably, the interference fit is located on the left and right inner sides of the two power terminals.

[0073] Although the present invention is described herein with reference to the illustrative embodiments of the present invention, the above embodiments are merely preferred embodiments of the present invention, and the embodiments of the present invention are not limited to the above embodiments. It should be understood that those skilled in the art can design many other modifications and implementations, which will fall within the scope and spirit of the principles disclosed in this application.

Claims

1. A heat conduction structural member for a charging socket, characterized in that: include: The thermally conductive silicone and the fixing part, wherein the thermally conductive silicone forms a plurality of mounting and fixing structures plugged into the fixing part, a sensor mounting position for mounting the temperature sensor, and an arc surface in contact with the power terminal, and the entire thermally conductive silicone and the fixing part are assembled into an assembly without affecting the installation of other components of the charging socket and the fixing part.

2. The heat conduction structure for a charging socket according to claim 1, characterized in that: There are two thermally conductive silica gels, which are relatively arranged at one end of the fixing piece close to the charging socket.

3. The heat conduction structure for a charging socket according to claim 2, characterized in that: The heat conduction structure is suitable for a DC charging socket.

4. The heat conduction structure for a charging socket according to claim 3, characterized in that: The thermally conductive silica gel has at least three circular holes as the mounting and fixing structures, and there is a waist hole as the sensor mounting position between at least three circular holes, and the lower side of the thermally conductive silica gel is formed with the arc surface opening downward; The fixing piece has a cylindrical structure plugged into the installation fixing structure, and the fixing piece is also embedded and fixed with the heat-conducting silica gel.

5. The heat conduction structure for a charging socket according to claim 4, characterized in that: A convex portion is formed on one side of the thermally conductive silicone rubber close to the fixing piece, and the sensor installation position is located in the convex portion and penetrates the thermally conductive silicone rubber.

6. The heat conduction structure for a charging socket according to claim 2, characterized in that: The heat conduction structure is suitable for an AC charging socket.

7. The heat conduction structure for a charging socket according to claim 6, characterized in that: The thermally conductive silicone has at least three cylinders as the mounting and fixing structures and an upwardly open concave hole as the sensor mounting position on one side of the thermally conductive silicone close to the fixing piece, and the outer side of the thermally conductive silicone is formed with the upwardly open arc surface; The fixing piece has a circular hole structure plugged into the installation fixing structure, and the fixing piece is also embedded and fixed with the heat-conducting silica gel.

8. The heat conduction structure for a charging socket according to claim 7, characterized in that: A convex portion is formed on one side of the thermal conductive silica gel close to the fixing piece, and the sensor installation position is arranged on the convex portion.

9. The heat conduction structure for a charging socket according to claim 1, characterized in that: The arc surface is interference-fitted with the power terminal.

10. The heat conduction structure for a charging socket according to claim 1, characterized in that: A PCBA board is installed on the assembly formed by the thermally conductive silicone and the fixing piece. The temperature sensor on the PCBA board is a water drop type thermistor. The contact point of the water drop type thermistor passes through the fixing piece and contacts with the thermally conductive silicone.

Images