Modular charging connector

Abstract

The utility model relates to a modularized charging connector. The modularized charging connector comprises an integrated main body, a socket body, an AC / DC terminal parallel connection module, a heat conduction temperature measurement module and a grounding and low-voltage signal module, the integration main body is combined with the socket body, the alternating current and direct current terminal parallel module and the heat conduction temperature measurement module are simultaneously accommodated in the integration main body, the heat conduction temperature measurement module is in thermal contact with a direct current / alternating current terminal of the alternating current and direct current terminal parallel module, the working temperature during charging is detected in a heat conduction mode, and the grounding and low-voltage signal module forms a connector form. The integrated main body is combined with the socket body and forms interlocking with the integrated main body; according to the connector, the components are modularized, the integrated main body is used as a core, and the modules are integrated and concentrated, so that the purposes of being easy to assemble and produce and beneficial to realizing automatic layout are achieved; in addition, the heat conduction temperature measurement module fully utilizes the space, the same group of sensing elements simultaneously sense the working temperature of the direct current / alternating current charging terminal in a heat conduction mode, and the charging temperature is more accurately detected.

Description

Technical Field

[0001] The utility model relates to a charging connector, especially a modular charging connector which is convenient for assembly and can accurately sense the working temperature during both DC fast charging and AC slow charging. Background Art

[0002] SAE J3400 is a charging connector standard formulated by the Society of Automotive Engineers International. Its socket interface includes two charging terminals DC+ / L1, DC- / L2, a grounding terminal G, and two signal terminals CP, PP. Among them, the two charging terminals DC+ / L1, DC- / L2 can be used for DC fast charging or AC slow charging. Since both DC fast charging and AC slow charging are carried out on the same set of charging terminals, the volume of the SAE J3400 standard charging connector is significantly smaller. In this case, the rear end of the connector must take into account issues such as convenient wire routing and insulation. On the other hand, since the two charging terminals DC+ / L1, DC- / L2 are charged with high-power power, their temperature change is an important monitoring parameter. In the case of the reduced volume of the SAE J3400 standard charging connector, how to accommodate a sensing device in a limited space that can simultaneously monitor the working temperatures of the two charging terminals DC+ / L1, DC- / L2, and the sensing device must be able to accurately detect the temperature when the two charging terminals DC+ / L1, DC- / L2 are charging, which tests the efficiency of the internal space utilization and component combination of the connector.

[0003] Furthermore, in addition to the two AC / DC shared charging terminals DC+ / L1, DC- / L2, there is a grounding terminal G and two signal terminals CP, PP in the interface of SAE J3400. Although the signal types are different, they are arranged adjacent to each other. The rear end also needs to consider wiring and isolation issues, and in the case of the overall volume reduction, the convenience of space utilization and assembly also needs to be considered.

[0004] As can be seen from the above, the existing SAE J3400 standard charging connector still needs to be further reviewed in terms of structure and component integration, and a feasible solution needs to be sought. Summary of the Utility Model

[0005] Therefore, the main object of the utility model is to provide a modular charging connector, which effectively integrates the constituent elements and modularizes them, making the charging connector more efficient in space utilization, more convenient for assembly, and capable of more accurately detecting the working temperature during charging.

[0006] The main technical means to achieve the above object is to make the aforementioned modular charging connector include:

[0007] An integrated body having an inner side and an outer side, and a hollow chamber is provided between the inner side and the outer side;

[0008] A socket body is combined with the inner side of the integrated body. A socket is provided on the socket body, and a first charging terminal, a second charging terminal, a grounding terminal and two signal terminals are provided in the socket;

[0009] An AC / DC terminal parallel module includes two DC terminals and two AC terminals. The two DC terminals and the two AC terminals are respectively connected in parallel with one end of the first charging terminal and the second charging terminal, and the connection ends are located in the accommodation chamber of the integrated body;

[0010] A heat conduction and temperature measurement module includes two heat conduction elements and two temperature sensors. The two heat conduction elements are arranged in the accommodation chamber of the integrated body and are respectively in thermal contact with the connection ends of the two DC terminals and / or the two AC terminals, and the two temperature sensors are respectively inserted into the two heat conduction elements;

[0011] A grounding and low-voltage signal module includes a housing and a circuit board arranged in the housing; the housing is provided with the grounding terminal and the two signal terminals of the socket. One end of the grounding terminal and the two signal terminals penetrates out of the housing to form a connector form, and the other end is electrically connected to the circuit board in the housing.

[0012] The above structure of the present utility model modularizes the main components and assembles them into or combines them with the integrated body, so as to make full use of the limited space of the standardized charging connector, and at the same time make its assembly more convenient and efficient; for the working temperature that needs to be strictly monitored during the charging process, the present utility model makes good use of the internal space of the integrated body, and enables the heat conduction and temperature measurement module to sense the temperature of the AC / DC terminals in a heat conduction manner at a close distance, so that the temperature monitoring work can be accurately and conveniently carried out. Brief Description of the Drawings

[0013] Figure 1 It is a three-dimensional view of a preferred embodiment of the present utility model.

[0014] Figure 2 It is a three-dimensional view of another angle of a preferred embodiment of the present utility model.

[0015] Figure 3 It is an exploded view of a preferred embodiment of the present utility model.

[0016] Figure 4 It is a three-dimensional view of the integrated body of a preferred embodiment of the present utility model.

[0017] Figure 5 It is another exploded view of a preferred embodiment of the present utility model.

[0018] Figure 6 It is a cross-sectional view of a preferred embodiment of the present utility model.

[0019] Figure 7It is a top plan view of a preferred embodiment of the present utility model.

[0020] Figure 8 It is an exploded view of the grounding and low-voltage signal module of a preferred embodiment of the present utility model. Detailed implementation manners

[0021] Regarding a preferred embodiment of the present utility model, please refer to Figures 1 to 3 As shown, the present utility model includes an integrated body 10, a socket body 20, an AC / DC terminal parallel connection module 30, a heat conduction and temperature measurement module 40, and a grounding and low-voltage signal module 50; the integrated body 10 is combined with the socket body 20, the AC / DC terminal parallel connection module 30 and the heat conduction and temperature measurement module 40 are simultaneously accommodated in the integrated body 10, the heat conduction and temperature measurement module 40 is in thermal contact with the DC / AC terminals of the AC / DC terminal parallel connection module 30 to detect the working temperature during charging in a heat conduction manner, and the grounding and low-voltage signal module 50 is formed in the form of a connector to be combined with the socket body 20 and the integrated body 10 respectively. As described above, the present utility model mainly uses the integrated body 10 as the core to connect the socket body 20 and each modularized main component to achieve the purpose of making full use of space and facilitating assembly. In addition to the above components, the present utility model may further include an electronic lock 60; the specific structure of a preferred embodiment of the present utility model is detailed as follows:

[0022] Please refer to in conjunction with Figure 3 、 Figure 4 As shown, the integrated body 10 has an inner side and an outer side. The inner side has a bonding plate 11, and fixing holes are respectively formed at the corners of the bonding plate 11 for corresponding combination with the socket body 20; a hollow chamber 12 is formed between the inner side and the outer side. The integrated body 10 has an upper opening above the chamber 12, and an upper cover 13 is combined with the upper opening in a detachable snap-fit manner. A waterproof gasket 14 is provided between the upper cover 13 and the edge of the upper opening of the integrated body 10 to achieve the purpose of waterproofing.

[0023] A partition plate 15 is formed in the chamber 12 of the integrated body 10 to divide the chamber 12 into a first chamber 121 and a second chamber 122. Two DC cable sockets 161 and two AC wire sockets 162 are respectively formed on the outer side of the integrated body 10. The two DC cable sockets 161 and the two AC wire sockets 162 are respectively communicated with the first chamber 121 and the second chamber 122. In this embodiment, the two DC cable sockets 161 are located below the two AC wire sockets 162.

[0024] The socket body 20 is combined with the bonding plate 11 inside the integrated body 10. A socket 21 is provided on the surface of the socket body 20. In this embodiment, the socket 21 complies with the SAE J3400 standard and is internally provided with a first charging terminal 211, a second charging terminal 212, a grounding terminal 213, and two signal terminals 214, 215. Among them, the first charging terminal 211 and the second charging terminal 212 can be used as charging terminals DC+ / L1 and DC- / L2 for DC or AC power sources respectively, and the two signal terminals 214, 215 are low-voltage signal terminals CP (Control pilot) and PP (Proximity pilot) that comply with the SAE J3400 standard. Among them, the first charging terminal 211 and the second charging terminal 212 pass through the bonding plate 11 of the integrated body 10 and extend into the accommodation chamber 12 to be electrically connected to the AC / DC terminal parallel module 30, and the grounding terminal 213 and the two signal terminals 214, 215 are electrically connected to the grounding and low-voltage signal module 50.

[0025] Please refer to Figure 5 、 Figure 6 As shown, the AC / DC terminal parallel module 30 includes two DC terminals 31, two AC terminals 32. The two DC terminals 31, two AC terminals 32, the first charging terminal 211, and the second charging terminal 212 are connected in parallel at one end, and the parallel connection ends are respectively located in the first chamber 121 and the second chamber 122 of the integrated body 10. In this embodiment, the DC terminal 31 is in a plate shape, and a hollow cylindrical connection portion 310 is formed at one end, and is connected to the AC terminal 32 through the top end of the connection portion 310. The first charging terminal 211 and the second charging terminal 212 are electrically connected to the bottom of the ends of the two DC terminals 31 having the connection portion 310 at one end. In this state, the first charging terminal 211 and the second charging terminal 212 are respectively connected to the two DC terminals 31 and the two AC terminals 32. In a preferred embodiment, the first charging terminal 211 and the second charging terminal 212 are first combined with the AC / DC terminal parallel module 30, and then the integrated body 10 extends into the socket 21 of the socket body 20 during assembly.

[0026] Inside the cavity 12 of the integration body 10, there is further provided the heat conduction and temperature measurement module 40. The heat conduction and temperature measurement module 40 includes two heat conduction members 41 and two temperature sensors 42. The two heat conduction members 41 are made of heat conductive silica gel, are in block shapes respectively, and are located in the first cavity 121 and the second cavity 122 of the integration body 10 respectively. One end of each of the two heat conduction members 41 is formed with a through hole 411 for the temperature sensor 42 to pass through in a shape-matching and heat-contact manner. The other ends of the two heat conduction members 41 are formed with a cylindrical contact part 412 and are sleeved on the connection part 310 of the DC terminal 31 in a shape-matching and heat-contact manner. In this situation, the heat conduction member 41 will be located between the DC terminal 31 and the AC terminal 32 and form a heat contact. Since the heat conduction member 41 is adjacent to the connection parts of the DC terminal 31, the AC terminal 32, the first charging terminal 211, and the second charging terminal 212, the operating temperature of the AC / DC terminal parallel connection module 30 can be accurately sensed.

[0027] In this embodiment, to further fix the heat conduction member 41 firmly between the DC terminal 31 and the AC terminal 32, the heat conduction and temperature measurement module 40 further includes a fixing member 43. The fixing member 43 is internally formed with a receiving groove 430, which can cover the heat conduction member 41 in a contour-matching manner but expose its top and bottom surfaces to contact the DC terminal 31 and the AC terminal 32, and as Figure 7 shown, the two fixing members 43 can respectively receive the two heat conduction members 41 and the temperature sensors 42 therebetween in the first cavity 121 and the second cavity 122 of the integration body 10, and firmly install the heat conduction members 41 and the temperature sensors 42 therebetween in the cavity 12 of the integration body 10.

[0028] Please refer to Figure 3 、 Figure 6 shown, the two DC terminals 31 are respectively connected to two DC cables 33, and the two AC terminals 32 are respectively connected to two AC wires 34; among them, after the two DC cables 33 respectively pass through the through holes on the two cable back covers 35, they are respectively inserted into the cavity 12 through the two DC cable sockets 161 of the integration body 10 and connected to the DC terminals 31, and the two can be connected by welding. Corresponding buckles and buckling grooves are respectively formed on the two cable back covers 35 and the two DC cable sockets 161 to buckle with each other to fix the DC cable 33 therebetween. When the through holes on the cable back cover 35 are of different apertures, copper cables or aluminum cables of different wire diameters can be applied, such as 50mm 2 、70mm 2 or 95mm 2 . The two AC wires 34 also respectively pass through the through holes on the two wire back covers 36 and are then respectively inserted into the cavity 12 through the two AC wire sockets 162 of the integration body 10 and connected to the AC terminals 32. Corresponding buckles and buckling grooves are respectively formed on the two wire back covers 36 and the two AC wire sockets 162 to buckle with each other and fix the AC wire 34 therebetween.

[0029] Please refer to Figure 3 and Figure 8 As shown, the grounding and low-voltage signal module 50 includes a hollow housing 51, a circuit board 52, and an isolation seat 53. Among them, the circuit board 52 and the isolation seat 53 are arranged inside the housing 51. The grounding terminal 213, signal terminals 214, 215 in the socket 21 penetrate into one end of the housing 51 and successively pass through the circuit board 52 and the isolation seat 53. The grounding terminal 213, signal terminals 214, 215 are electrically connected to the circuit board 52. For convenient assembly, the grounding terminal 213, signal terminals 214, 215 in the socket 21 are first arranged on the housing 51 to form a connector form. When the grounding and low-voltage signal module 50 is combined with the socket body 20, the grounding terminal 213, signal terminals 214, 215 correspondingly extend into the socket 21.

[0030] After passing through the isolation seat 53, the grounding terminal 213, signal terminals 214, 215 are isolated from each other by the isolation seat 53. In this embodiment, a lead rear cover 54 is provided at the other end of the housing 51. The lead rear cover 54 is mainly formed by extending two side wings at both ends of a back plate. A plurality of wire holes are formed on the back plate for respectively passing through a grounding wire 55, two signal wires 56, 57. One ends of the grounding wire 55, two signal wires 56, 57 are electrically connected to the other ends of the grounding terminal 213, signal terminals 214, 215 extending out of the isolation seat 53. Corresponding buckle grooves and buckles are respectively formed at the relative positions of the two side wings of the lead rear cover 54 and the housing 51 to buckle with each other.

[0031] The grounding and low-voltage signal module 50 is connected to both the integration main body 10 and the socket body 20 through its housing 51. Among them, the top of the housing 51 and the bottom of the integration main body 10 are in a matching concave-convex fit, so that the housing 51 can be set on the bottom of the integration main body 10 in a fitting manner. Compressible buckle pieces 511 are respectively formed at one ends of both sides of the housing 51 close to the socket body 20. Furthermore, a slot 110 is formed at the bottom end of the bonding plate 11 of the integration main body 10. The width of the slot 110 matches the width of the housing 51 at the position where the buckle pieces 511 are provided, so that the housing 51 can pass through the slot 110. After the housing 51 passes through the slot 110, the buckle pieces 511 on both sides of it will be buckled reversely at the edge of the slot 110. Furthermore, a support plate 22 extending backward is formed at the lower edge of the socket body 20. When one end of the housing 51 passes through the slot 110 of the integration main body 10, the bottom of this end of the housing 51 will be supported by the support plate 22 of the socket body 20 at the same time, thus completing the connection between the grounding and low-voltage signal module 50, the integration main body 10 and the socket body 20.

[0032] Please refer to Figures 1 to 3As shown in the figure, an electronic lock 60 is provided below the socket body 20 of the socket 21. A latch hole 210 is formed at the bottom of the socket 21. When a charging plug is connected to the socket 21 for charging, the locking tongue of the electronic lock 60 will extend into the latch hole 210 at the bottom of the socket 21 to form a lock, so as to prevent the charging plug from being arbitrarily unplugged and ensure charging safety. In addition, in order to manually release the locked state in an emergency, the electronic lock 60 is provided with a manual pull cord 61, and the manual pull cord 61 passes through a pull cord bracket 62 provided at the lower end of the socket body 20 to regulate the position and direction of its wire outlet.

[0033] From the above description, the specific structure of the present invention can be understood. The main components of the charging connector are modularized and assembled into or combined with the integrated body, so as to make full use of the limited space of the standardized charging connector and make its assembly more convenient and efficient. Moreover, the present invention makes good use of the internal space of the integrated body, and the heat conduction and temperature measurement module is arranged between the DC terminal and the AC terminal in a heat conduction structure. It can not only sense the temperature of the AC and DC terminals at a close distance, but also monitor the operating temperatures of the AC terminal and the DC terminal with a single set of temperature sensing elements.

[0034] The above are only the preferred embodiments of the present invention, and do not impose any form of limitation on the present invention. Although the present invention has been disclosed above with the preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art, without departing from the technical solution of the present invention, can make some changes or modifications to the above-disclosed technical content to obtain equivalent embodiments of equivalent changes. However, as long as it does not depart from the technical solution of the present invention, any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the present invention still fall within the scope of the technical solution of the present invention.

Claims

1. A modular charging connector, characterized in that, Comprising: An integrated body having an inner side and an outer side, with a hollow chamber therebetween; A socket body combined with the inner side of the integrated body, having a socket provided thereon, and a first charging terminal, a second charging terminal, a grounding terminal and two signal terminals provided in the socket; An AC / DC terminal parallel connection module including two DC terminals and two AC terminals, the two DC terminals and the two AC terminals being respectively connected in parallel to one end of the first charging terminal and the second charging terminal, and the parallel connection ends being located in the chamber of the integrated body; A heat conduction and temperature measurement module including two heat conduction members and two temperature sensors, the two heat conduction members being provided in the chamber of the integrated body and respectively making thermal contact with the parallel connection ends of the two DC terminals and / or the two AC terminals, and the two temperature sensors being respectively inserted into the two heat conduction members; A grounding and low-voltage signal module including a housing and a circuit board provided in the housing; the housing is provided with the grounding terminal and the two signal terminals of the socket, one end of the grounding terminal and the two signal terminals passing through the housing to form a connector form, and the other end being electrically connected to the circuit board in the housing.

2. The modular charging connector according to claim 1, wherein The DC terminals of the AC / DC terminal parallel connection module are plate-shaped, with a hollow cylindrical connection portion formed at one end, and being connected to the AC terminal through the top end of the connection portion, and one end of the first charging terminal and the second charging terminal being respectively electrically connected to the bottom ends of the two DC terminals having the connection portions; The two heat conduction members of the heat conduction and temperature measurement module are block-shaped, with through holes formed at one end thereof for the temperature sensors to be inserted therein in a shape-matching and thermally contacting manner, and a cylindrical contact portion formed at the other end of the heat conduction member, and being sleeved on the connection portion of the DC terminal in a shape-matching and thermally contacting manner, so that the heat conduction member makes thermal contact with both the DC terminal and the AC terminal simultaneously.

3. The modular charging connector according to claim 2, wherein A partition is formed in the chamber of the integrated body, dividing the chamber into a first chamber and a second chamber, and the parallel connection ends of the first charging terminal, the second charging terminal, the DC terminals and the AC terminals are respectively located in the first chamber and the second chamber.

4. The modular charging connector according to claim 3, wherein Two DC cable sockets and two AC wire sockets are respectively formed on the outer side of the integrated body, the DC cable sockets communicate with the first chamber and are combined with a cable rear cover relatively; the AC wire sockets communicate with the second chamber and are combined with a wire rear cover relatively; The two DC terminals of the AC / DC terminal parallel connection module are respectively connected to two DC cables, and the two AC terminals are respectively connected to two AC wires; wherein, after the two DC cables respectively pass through the cable rear cover, they are inserted into the first chamber and the second chamber through the two DC cable sockets of the integrated body and are connected to the DC terminals; After the two AC wires respectively pass through the wire rear cover, they are respectively inserted into the first chamber and the second chamber through the two AC wire sockets of the integrated body and are connected to the AC terminals.

5. The modular charging connector according to claim 4, characterized in that, Corresponding buckle blocks and buckle grooves are respectively formed on the two wire rear covers and the two AC wire sockets to be buckled with each other; Corresponding buckle blocks and buckle grooves are respectively formed on the two cable rear covers and the two DC cable sockets to be buckled with each other.

6. The modular charging connector according to claim 1, wherein, The grounding and low-voltage signal module further includes an isolation seat which is disposed within the housing. The grounding terminal and the signal terminal within the socket penetrate into the housing from one end of the housing, and successively pass through the circuit board and the isolation seat. The grounding terminal and the signal terminal are electrically connected to the circuit board; the grounding terminal and the signal terminal are isolated from each other through the isolation seat after passing through the isolation seat.

7. The modular charging connector according to claim 6, wherein, The other end of the housing is provided with a lead-back cover. The lead-back cover extends to form two side wings at both ends of a back plate. A plurality of wire holes are formed on the back plate for respectively passing through a ground wire and two signal wires. One ends of the ground wire and the two signal wires are electrically connected to the other ends of the grounding terminal and the signal terminal extending out of the isolation seat. Corresponding buckle grooves and buckles are respectively formed at the relative positions of the two side wings of the lead-back cover and the housing for buckling with each other.

8. The modular charging connector according to claim 6, wherein, The bottom of the integrated body and the top of the housing are in a matching concave-convex fit. Compressible buckles are respectively formed at one ends of the two sides of the housing close to the socket body. The inner side of the integrated body has a bonding plate. A slot is formed at the bottom end of the bonding plate. The width of the slot is matched with the width of the housing at the position where the buckles are provided, so that the housing can pass through the slot. The buckles on both sides of the housing are buckled reversely at the edge of the slot. A support plate extending backward is formed at the lower edge of the socket body to support the housing.

9. The modular charging connector according to claim 1, characterized in that, The integrated body forms an upper opening above the accommodating chamber. An upper cover is detachably combined at the upper opening. A waterproof gasket is provided between the upper cover and the edge of the upper opening of the integrated body.

10. The modular charging connector according to claim 1, characterized in that, An electronic lock is provided below the socket of the socket body. A latch hole is formed at the bottom of the socket, and the latch hole corresponds to a latch tongue of the electronic lock. The electronic lock is provided with a manual pull cord which passes through a pull cord holder provided at the lower end of the socket body.

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