Charging socket DC terminal temperature measurement structure
By using thermal conductivity rubber to interfere with the temperature sensor and DC terminals, the problems of high cost, short service life and low temperature measurement accuracy in the prior art are solved, and more accurate high temperature identification and safety improvement are achieved.
Patent Information
- Application Number
- CN202421173741.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-27
- Publication Date
- 2025-03-18
- Estimated Expiration
- 2034-05-27
AI Technical Summary
The temperature sensors of existing charging socket DC terminals have problems such as high cost and short service life. The temperature measurement accuracy of the indirect contact temperature measuring sensor is not high, and large temperature differences are prone to occur.
The thermally conductive rubber is used to interfere with the temperature sensor and the DC terminal, and passes through the chamber through the thermally conductive rubber, and a slot is opened toward the PCB board with integrated temperature sensors. The temperature sensor is integrated on the projection and contacts the thermally conductive rubber.
It improves the temperature measurement accuracy of the temperature sensor, reduces temperature difference, enhances the ability to identify high temperatures caused by charging, and improves safety.
Smart Images
Figure CN222635641U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of vehicle charging, in particular to a temperature measurement structure of a DC terminal of a charging socket. Background Art
[0002] Since the charging socket of electric vehicles will be connected to a large current during charging, in order to ensure the safety of charging, temperature sensors are generally set to perform real-time temperature detection on the DC terminal of the charging socket. The temperature sensor sends the measured signal to the driving computer through the PCB board to monitor the temperature of the DC terminal during charging. Temperature sensors can be divided into direct contact temperature measurement with the DC terminal and indirect contact temperature measurement. Since the DC terminal is high voltage and the PCB board is low voltage, the insulation between the two must be maintained and cannot be broken down. Therefore, temperature sensors with direct contact temperature measurement are all temperature sensors with a certain pressure resistance. The temperature measurement method often uses the method of directly inserting the temperature measurement component into the DC terminal. This contact method has high requirements for sealing and insulation, and there are problems such as high cost and short service life of the temperature sensor. Although the indirect contact temperature measurement sensor does not directly contact the DC terminal, it can ensure sealing and insulation, but the temperature measurement accuracy is not high and it is easy to have a large temperature difference.
[0003] In order to solve this problem, the present application discloses a charging socket DC terminal temperature measurement structure. Utility Model Content
[0004] In order to overcome the deficiencies of the prior art, the utility model discloses a charging socket DC terminal temperature measurement structure.
[0005] To achieve the above-mentioned purpose, the utility model is implemented through the following technical solutions: a charging socket DC terminal temperature measurement structure, including a shell, a DC terminal, a PCB board integrated with a temperature sensor and a plug-in assembly, and also including a thermally conductive rubber, the interior of the shell is integrally provided with a warehouse body, the DC terminal is installed inside the warehouse body, the PCB board is cooperatively arranged inside the shell, one end of the thermally conductive rubber is in interference contact with the DC terminal, and the other end passes through the warehouse body and is provided with a slot toward the PCB board, a protrusion is integrally formed on the PCB board and is inserted in the slot, and the temperature sensor is integrated on the protrusion and is in interference contact with the thermally conductive rubber.
[0006] Further preferably, a first arc surface and a second arc surface matching the surface of the DC terminal are provided on one side of the thermally conductive rubber, and the first arc surface and the second arc surface are connected.
[0007] Further preferably, a sidewall of the storage body close to the protruding portion is provided with an avoidance groove, and the heat-conducting rubber passes through the inside of the avoidance groove.
[0008] Further preferably, two opposite sides of the heat-conducting rubber are respectively provided with card slots, and the side walls of the bin body corresponding to the two sides of the avoidance groove are inserted into the card slots.
[0009] Further preferably, the number of the bin bodies and the number of the DC terminals are both two, and the PCB board is arranged between the two bin bodies and extends to both sides.
[0010] The utility model achieves the following beneficial effects:
[0011] The utility model utilizes the ultra-high thermal conductivity and good insulation performance of the heat-conducting rubber to make interference contact with the temperature sensor and the DC terminal, so that the vehicle computer can more accurately identify the high temperature caused by charging, avoid the occurrence of safety accidents, and has strong use value.
[0012] Other features and advantages of the utility model will be described in the following description, and partly become apparent from the description, or understood by implementing the utility model. The purpose and other advantages of the utility model can be realized and obtained through the structures indicated in the description and the drawings. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] The accompanying drawings herein are incorporated in and constitute a part of the specification, illustrate embodiments consistent with the disclosure of the utility model, and together with the description, are used to explain the principles of the disclosure.
[0014] Figure 1 It is a schematic diagram of the planar structure disclosed by the utility model;
[0015] Figure 2 This is a schematic diagram of the three-dimensional structure disclosed by the utility model (one of which is not equipped with heat-conducting rubber);
[0016] Figure 3 This is a schematic diagram of the heat-conducting rubber structure disclosed in the utility model;
[0017] In the figure: 10, shell; 11, storage body; 111, avoidance groove; 20, DC terminal; 30, PCB board; 31, protrusion; 32, temperature sensor; 40, thermal conductive rubber; 41, slot; 42, card slot; 43, first arc surface; 44, second arc surface. DETAILED DESCRIPTION
[0018] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.
[0019] In the description of the present invention, it should be understood that terms such as "opening", "upper", "lower", "thickness", "top", "middle", "length", "inside", "all around" and the like indicating orientation or positional relationship are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the components or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.
[0020] Example
[0021] In order to solve the problems that the indirect contact temperature measurement sensor in the prior art does not directly contact the DC terminal 20, can ensure sealing and insulation, but has low temperature measurement accuracy and is prone to large temperature differences, etc., Figure 1-Figure 3 As shown, the present application discloses a temperature measurement structure of a charging socket DC terminal 20, including a housing 10, a DC terminal 20, a PCB board 30 integrated with a temperature sensor 32, and a plug-in assembly, and also includes a thermally conductive rubber 40 (the material formula can refer to a patent for a thermally conductive insulating material and its preparation method applied by our company on the same day). The housing 10 is integrally provided with a bin body 11, the DC terminal 20 is installed in the bin body 11, and the PCB board 30 is arranged in the housing 10. In the present application, the number of bin bodies 11 and DC terminals 20 is two, the PCB board 30 is arranged between the two bin bodies 11 and extends to both sides, and one end of the thermally conductive rubber 40 is provided with a temperature sensor 32. It is in interference contact with the DC terminal 20, and the other end passes through the housing 11 and is provided with a slot 41 toward the PCB board 30. Specifically, the present application provides an avoidance groove 111 on the side wall of the housing 11 near the protrusion 31, and the thermally conductive rubber 40 passes through the inside of the avoidance groove 111. A protrusion 31 is integrally formed on the PCB board 30 and inserted into the slot 41. The temperature sensor 32 is integrated on the protrusion 31 and is in interference contact with the thermally conductive rubber 40. Based on the above scheme, the thermally conductive rubber 40 is utilized to have ultra-high thermal conductivity and good insulation properties to be in interference contact with the temperature sensor 32 and the DC terminal 20, so that the vehicle computer can more accurately identify the high temperature caused by charging.
[0022] refer to Figure 1 and 3 As shown, in order to make the thermally conductive rubber 40 have better interference contact with the DC terminal 20, the present application provides a first arc surface 43 and a second arc surface 44 that match the surface of the DC terminal 20 on one side of the thermally conductive rubber 40, and the first arc surface 43 and the second arc surface 44 are connected.
[0023] refer to Figure 1 and 3 As shown, the present application provides card slots 42 on opposite sides of the thermally conductive rubber 40, and the side walls of the housing 11 corresponding to the two sides of the avoidance groove 111 are inserted into the card slots 42. In this way, the thermally conductive rubber 40 is fixed, so that the thermally conductive rubber 40 cannot move to the sides.
[0024] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.
[0025] The above embodiments are only for illustrating the technical concept and features of the utility model, and their purpose is to enable technicians familiar with the technical field to understand the content of the utility model and implement it accordingly, and they cannot be used to limit the protection scope of the utility model. Any equivalent changes or modifications made according to the spirit of the utility model should be included in the protection scope of the utility model.
Claims
1. A charging socket DC terminal temperature measurement structure, comprising a housing (10), a DC terminal (20), a PCB board (30) integrated with a temperature sensor (32), and a plug-in assembly, characterized in that: It also comprises a heat-conducting rubber (40); a housing (11) is integrally provided inside the housing (10); the DC terminal (20) is mounted inside the housing (11); the PCB board (30) is cooperatively arranged inside the housing (10); one end of the heat-conducting rubber (40) is in interference contact with the DC terminal (20); the other end passes through the housing (11) and is provided with a slot (41) toward the PCB board (30); a protrusion (31) is integrally formed on the PCB board (30) and is inserted into the slot (41); the temperature sensor (32) is integrated on the protrusion (31) and is in interference contact with the heat-conducting rubber (40).
2. A charging socket DC terminal temperature measurement structure according to claim 1, characterized in that: A first arc surface (43) and a second arc surface (44) that match the surface of the DC terminal (20) are provided on one side of the heat-conducting rubber (40), and the first arc surface (43) and the second arc surface (44) are connected.
3. A charging socket DC terminal temperature measurement structure according to claim 1, characterized in that: An avoidance groove (111) is provided on the side wall of the storage body (11) close to the protruding portion (31), and the heat-conducting rubber (40) passes through the inside of the avoidance groove (111).
4. A charging socket DC terminal temperature measurement structure according to claim 3, characterized in that: The heat-conducting rubber (40) is provided with card slots (42) on opposite sides, and the side walls of the bin body (11) corresponding to the two sides of the avoidance groove (111) are inserted into the card slots (42).
5. The charging socket DC terminal temperature measurement structure according to claim 1, characterized in that: The number of the warehouse bodies (11) and the number of the DC terminals (20) are both two, and the PCB board (30) is arranged between the two warehouse bodies (11) and extends to both sides.