Electric connection assembly and charging device

Abstract

The utility model discloses an electric connection assembly and a charging device. The electrical connection assembly comprises: a charging terminal having a connection end; a cable, one end of a conductor core of which is electrically connected to the connection end of the charging terminal; and the temperature detection module is fixed on the connecting end of the charging terminal, is in thermal contact with the connecting end of the charging terminal, and is used for detecting the temperature of the connecting end of the charging terminal. The electric connection assembly is suitable for being inserted into a jack on a shell of the charging device. According to the utility model, the temperature detection module is in thermal contact with the connecting end, electrically connected with the cable, of the charging terminal, so that the temperature of the charging terminal can be detected timely and accurately. Besides, in the utility model, the temperature detection module is fixed on the charging terminal, and a lead frame for installing the temperature detection module does not need to be provided, so that the cost can be reduced.

Description

Technical Field

[0001] This utility model relates to an electrical connection component and a charging device including the electrical connection component. Background Technology

[0002] In existing technologies, charging the battery packs of new energy electric vehicles requires installing charging sockets suitable for use with charging guns. To increase charging speed, the charging current needs to be increased, currently reaching 600A, and potentially even 1000A in the future. When a large current flows through the charging terminals inside the charging socket, it generates a significant amount of heat, causing a rapid rise in the temperature of the charging terminals. If this temperature rise is not controlled in time, it can lead to safety accidents, such as burning out the charging socket or other electrical equipment.

[0003] In existing technologies, to control the temperature rise of the charging terminals, a lead frame is typically installed in the charging socket, and a temperature detection module is mounted on the lead frame. This temperature detection module includes a temperature sensor and a thermally conductive pad surrounding the temperature sensor. The thermally conductive pad is in thermal contact with the charging terminals, and the temperature sensor is electrically connected to the lead frame. However, in existing technologies, the thermally conductive pad on the lead frame can only make thermal contact with the outer surface of the cylindrical body of the charging terminal, and not with the connection end of the charging terminal that is electrically connected to the cable. This results in the temperature detection module being unable to detect the temperature of the charging terminals accurately and promptly, reducing the accuracy and time response of temperature detection. Furthermore, this existing temperature detection solution is also relatively expensive. Utility Model Content

[0004] The purpose of this utility model is to solve at least one aspect of the aforementioned problems and defects existing in the prior art.

[0005] According to one aspect of the present invention, an electrical connection assembly is provided. The electrical connection assembly includes: a charging terminal having a connection end; a cable, one end of which has a conductor core electrically connected to the connection end of the charging terminal; and a temperature detection module fixed to the connection end of the charging terminal and in thermal contact with the connection end of the charging terminal, for detecting the temperature of the connection end of the charging terminal. The electrical connection assembly is adapted to be inserted into a socket on the housing of a charging device.

[0006] According to an exemplary embodiment of the present invention, the temperature detection module includes: a temperature sensor; and a heat-conducting element that encloses the body of the temperature sensor. The heat-conducting element is in thermal contact with the connection end of the charging terminal to transfer the heat from the connection end of the charging terminal to the body of the temperature sensor.

[0007] According to another exemplary embodiment of the present invention, the heat-conducting element is columnar and has a mounting blind hole. The body of the temperature sensor is inserted into the mounting blind hole of the heat-conducting element and is interference-fitted with the inner wall surface of the mounting blind hole to make close contact with the inner wall surface of the mounting blind hole.

[0008] According to another exemplary embodiment of the present invention, the heat-conducting element is columnar and has a blind mounting hole. The body of the temperature sensor is inserted into the blind mounting hole of the heat-conducting element and is bonded to the inner wall of the blind mounting hole of the heat-conducting element by thermally conductive adhesive.

[0009] According to another exemplary embodiment of the present invention, the heat-conducting component is an injection-molded component that is injection-molded onto the body of the temperature sensor through an embedded injection molding process, so that the heat-conducting component and the temperature sensor become an integral part.

[0010] According to another exemplary embodiment of the present invention, the connection end of the charging terminal is flat and has two opposite sides in its thickness direction, one end of the conductor core of the cable is welded to the surface of one side of the connection end of the charging terminal; the heat-conducting element has a flat thermal contact surface, and the thermal contact surface of the heat-conducting element is attached to the surface of the other side of the connection end of the charging terminal.

[0011] According to another exemplary embodiment of the present invention, the connection end of the charging terminal is pressed onto one end of the conductor core of the cable, and the heat-conducting element has a thermal contact surface that matches the outer surface of the connection end of the charging terminal, and the thermal contact surface of the heat-conducting element is integrally attached to the outer surface of the connection end of the charging terminal.

[0012] According to another exemplary embodiment of the present invention, the electrical connection assembly further includes: a heat shrink tubing, which is fitted and heat-shrinked onto one end of the conductor core of the cable, the connection end of the charging terminal, and the heat-conducting component of the temperature detection module, so as to fix the temperature detection module to the connection end of the charging terminal.

[0013] According to another exemplary embodiment of the present invention, the electrical connection assembly further includes: a crimping sleeve, which is fitted and crimped onto one end of the conductor core of the cable, the connection end of the charging terminal, and the heat-conducting component of the temperature detection module, so as to fix the temperature detection module to the connection end of the charging terminal.

[0014] According to another exemplary embodiment of the present invention, the electrical connection assembly further includes: an elastic clip, which clamps one end of the conductor core of the cable, the connection end of the charging terminal, and the heat-conducting component of the temperature detection module to fix the temperature detection module to the connection end of the charging terminal.

[0015] According to another exemplary embodiment of the present invention, the thermally conductive component of the temperature detection module is bonded and fixed to the connection end of the charging terminal by thermally conductive adhesive.

[0016] According to another exemplary embodiment of the present invention, the electrical connection assembly further includes a rear end cover adapted to be inserted into the rear port of a socket on the housing. A first through hole and a second through hole are formed on the end wall of the rear end cover, and the leads of the cable and the temperature sensor are respectively led out from the rear end cover through the first through hole and the second through hole.

[0017] According to another exemplary embodiment of the present invention, a plurality of raised ribs are formed on the peripheral wall of the rear end cover. The plurality of raised ribs extend along the axial direction of the rear end cover and are spaced apart in the circumferential direction of the rear end cover, for interference fit with the inner wall surface of the rear port of the insertion hole, so as to fix the rear end cover to the rear port of the insertion hole.

[0018] According to another exemplary embodiment of the present invention, the electrical connection assembly further includes: a sealing member disposed in the inner cavity of the rear end cover and having a cable through-hole allowing the cable to pass through and a lead through-hole allowing the lead wire to pass through. The cable passes through the cable through-hole and is press-fitted with the cable through-hole to achieve a seal between the two; the lead wire passes through the lead through-hole and is press-fitted with the lead through-hole to achieve a seal between the two; the sealing member is press-fitted with the inner wall surface of the inner cavity of the rear end cover to achieve a seal between the two.

[0019] According to another exemplary embodiment of the present invention, a sealing ring mounting groove is formed on the outer peripheral surface of the rear end cover, and the electrical connection assembly further includes: a sealing ring, which is installed in the sealing ring mounting groove of the rear end cover, and the sealing ring is adapted to be radially pressed between the inner walls of the rear end cover and the rear port of the insertion hole to achieve a seal between the two.

[0020] According to another exemplary embodiment of the present invention, the charging terminal includes: a terminal body having a cylindrical body and a connecting end connected to the rear end of the cylindrical body; and an elastic member inserted in the front portion of the cylindrical body, the elastic member being used to make electrical contact with a mating terminal inserted in the front portion of the cylindrical body, such that the mating terminal can be electrically connected to the terminal body via the elastic member.

[0021] According to another exemplary embodiment of the present invention, the elastic element includes: two annular ends opposite each other in the axial direction of the cylindrical body; and a plurality of elastic arms connected between the two annular ends and spaced apart in the circumferential direction of the cylindrical body, the annular ends being C-shaped with notches, and the plurality of elastic arms being used for electrical contact with inserted mating terminals.

[0022] According to another exemplary embodiment of the present invention, a plurality of front limiting protrusions and a plurality of rear limiting protrusions are formed on the inner circumferential surface of the cylindrical body; the plurality of front limiting protrusions are spaced apart in the circumferential direction of the cylindrical body and are adapted to axially abut against the annular end of the front end of the elastic member; the plurality of rear limiting protrusions are spaced apart in the circumferential direction of the cylindrical body and are adapted to axially abut against the annular end of the rear end of the elastic member.

[0023] According to another exemplary embodiment of the present invention, the charging terminal includes a cylindrical body and a connecting end connected to the rear end of the cylindrical body. A plurality of contact spring arms are formed on the front part of the cylindrical body. The plurality of contact spring arms are spaced apart in the circumferential direction of the cylindrical body and are used to make electrical contact with the mating terminal inserted into the front part of the cylindrical body.

[0024] According to another exemplary embodiment of the present invention, a locking spring is formed on the cylindrical body of the charging terminal, the locking spring being used to lock the electrical connection assembly into the socket of the housing to prevent the electrical connection assembly from being pulled out of the socket of the housing.

[0025] According to another exemplary embodiment of the present invention, an injection-molded seal is injection-molded on the rear end of the cylindrical body of the charging terminal. The injection-molded seal is used to seal the insertion hole of the housing to prevent moisture from entering the housing through the front port of the insertion hole. A slot is formed on the rear end of the cylindrical body of the charging terminal to allow the injection molding material forming the injection-molded seal to flow into the interior of the cylindrical body through the slot and seal the interior of the cylindrical body.

[0026] According to another aspect of the present invention, a charging device is provided. The charging device includes: a housing having a socket; and the aforementioned electrical connection assembly inserted into the socket. The charging terminal is configured to mate with a mating terminal inserted from the front port of the socket, and a cable of the electrical connection assembly extends from the rear port of the socket.

[0027] According to an exemplary embodiment of the present invention, the charging device is a charging socket, the charging terminal is used to mate with the mating terminal of a charging gun inserted from the front port of the socket, and the cable of the electrical connection component is led out from the rear port of the socket for electrical connection to a rechargeable battery pack.

[0028] In the foregoing exemplary embodiments of the present invention, the temperature detection module is in thermal contact with the connection end of the charging terminal that is electrically connected to the cable, thus enabling timely and accurate detection of the temperature of the charging terminal.

[0029] Furthermore, in the aforementioned exemplary embodiments of this invention, the temperature detection module is fixed to the charging terminal, eliminating the need for a lead frame for mounting the temperature detection module. Therefore, this invention can reduce costs.

[0030] Furthermore, in the aforementioned exemplary embodiments of this utility model, the charging terminal, temperature detection module, and cable are integrated together and can be inserted into the housing of the charging device as a single electrical connection component, which reduces the assembly difficulty of the charging device and improves the assembly efficiency of the charging device.

[0031] Other objects and advantages of the present invention will become apparent from the following description of the invention with reference to the accompanying drawings, and will help to provide a comprehensive understanding of the invention. Attached Figure Description

[0032] Figure 1 A perspective view of an electrical connection assembly according to an exemplary embodiment of the present invention is shown;

[0033] Figure 2 Showing a longitudinal sectional view of an electrical connection assembly according to an exemplary embodiment of the present invention;

[0034] Figure 3 An exploded schematic diagram of an electrical connection assembly according to an exemplary embodiment of the present invention is shown;

[0035] Figure 4 This shows an anatomical view of an electrical connection assembly according to an exemplary embodiment of the present invention;

[0036] Figure 5 Another exploded view of an electrical connection assembly according to an exemplary embodiment of the present invention is shown;

[0037] Figure 6 Showing another anatomical view of an electrical connection assembly according to an exemplary embodiment of the present invention;

[0038] Figure 7 A perspective view of a temperature detection module of an electrical connection assembly according to an exemplary embodiment of the present invention is shown.

[0039] Figure 8 An exploded view of a temperature detection module of an electrical connection assembly according to an exemplary embodiment of the present invention is shown.

[0040] Figure 9 Showing a cross-sectional view of a temperature detection module of an electrical connection assembly according to an exemplary embodiment of the present invention;

[0041] Figure 10 This diagram shows the insertion of the electrical connection components into the sockets on the housing of the charging device. Detailed Implementation

[0042] The technical solution of this utility model will be further described in detail below through embodiments and in conjunction with the accompanying drawings. In this specification, the same or similar reference numerals indicate the same or similar components. The following description of the embodiments of this utility model with reference to the accompanying drawings is intended to explain the overall inventive concept of this utility model and should not be construed as a limitation thereof.

[0043] Furthermore, in the following detailed description, numerous specific details are set forth for ease of explanation to provide a thorough understanding of the embodiments disclosed herein. However, it will be apparent that one or more embodiments may be practiced without these specific details. In other instances, well-known structures and apparatuses are illustrated to simplify the figures.

[0044] According to a general technical concept of this utility model, an electrical connection assembly is provided. The electrical connection assembly includes: a charging terminal having a connection end; a cable, one end of which has a conductor core electrically connected to the connection end of the charging terminal; and a temperature detection module fixed to the connection end of the charging terminal and in thermal contact with the connection end of the charging terminal, for detecting the temperature of the connection end of the charging terminal. The electrical connection assembly is adapted to be inserted into a socket on the housing of a charging device.

[0045] According to another general technical concept of this utility model, a charging device is provided. The charging device includes: a housing having a socket; and the aforementioned electrical connection assembly inserted into the socket. The charging terminal is for mating with a mating terminal inserted from the front port of the socket, and the cable of the electrical connection assembly extends from the rear port of the socket.

[0046] Figure 1 A perspective view of an electrical connection assembly 100 according to an exemplary embodiment of the present invention is shown; Figure 2 Showing a longitudinal sectional view of an electrical connection assembly 100 according to an exemplary embodiment of the present invention; Figure 3 An exploded schematic diagram of an electrical connection assembly 100 according to an exemplary embodiment of the present invention is shown. Figure 4 Showing an exploded view of an electrical connection assembly 100 according to an exemplary embodiment of the present invention; Figure 5 Another exploded view of an electrical connection assembly 100 according to an exemplary embodiment of the present invention is shown; Figure 6 Showing another anatomical view of an electrical connection assembly 100 according to an exemplary embodiment of the present invention; Figure 7A perspective view of a temperature detection module 4 of an electrical connection assembly 100 according to an exemplary embodiment of the present invention is shown. Figure 8 This diagram shows an exploded view of the temperature detection module 4 of an electrical connection assembly 100 according to an exemplary embodiment of the present invention. Figure 9 Showing a cross-sectional view of the temperature detection module 4 of an electrical connection assembly 100 according to an exemplary embodiment of the present invention; Figure 10 This diagram shows the electrical connection assembly 100 being inserted into a socket on the housing of the charging device.

[0047] like Figures 1 to 10 As shown, in an exemplary embodiment of this utility model, an electrical connection assembly 100 is disclosed. The electrical connection assembly 100 includes: a charging terminal 1, a cable 3, and a temperature detection module 4. The charging terminal 1 has a connection end 111. One end 3a of the conductor core 30 of the cable 3 is electrically connected to the connection end 111 of the charging terminal 1. The temperature detection module 4 is fixed to the connection end 111 of the charging terminal 1 and makes thermal contact with the connection end 111 of the charging terminal 1, for detecting the temperature of the connection end 111 of the charging terminal 1. The electrical connection assembly 100 is adapted to be inserted into a socket 80 on the housing 8 of a charging device.

[0048] like Figures 1 to 10 As shown in the illustrated embodiment, the temperature detection module 4 includes a temperature sensor 41 and a heat-conducting element 42. The heat-conducting element 42 encloses the body 410 of the temperature sensor 41. The heat-conducting element 42 is in thermal contact with the connection end 111 of the charging terminal 1 to transfer the heat from the connection end 111 of the charging terminal 1 to the body 410 of the temperature sensor 41.

[0049] like Figures 1 to 10 As shown in the illustrated embodiment, the heat-conducting element 42 is columnar and has a mounting blind hole 402. The body 410 of the temperature sensor 41 is inserted into the mounting blind hole 402 of the heat-conducting element 42 and is interference-fitted with the inner wall surface of the mounting blind hole 402 so as to be in close contact with the inner wall surface of the mounting blind hole 402.

[0050] However, the present invention is not limited to the embodiments shown in the figure. For example, in another exemplary embodiment of the present invention, the heat-conducting element 42 is columnar and has a mounting blind hole 402. The body 410 of the temperature sensor 41 is inserted into the mounting blind hole 402 of the heat-conducting element 42 and is bonded to the inner wall surface of the mounting blind hole 402 of the heat-conducting element 42 by thermally conductive adhesive.

[0051] However, the present invention is not limited to the illustrated embodiments. For example, in another exemplary embodiment of the present invention, the heat-conducting element 42 can be an injection molded part that is injection molded onto the body 410 of the temperature sensor 41 by an embedded injection molding process, so that the heat-conducting element 42 and the temperature sensor 41 become an integral part.

[0052] like Figures 1 to 10 As shown in the illustrated embodiment, the connection end 111 of the charging terminal 1 is flat and has two opposing sides in its thickness direction. One end 3a of the conductor core 30 of the cable 3 is soldered to the surface of one side of the connection end 111 of the charging terminal 1. The heat-conducting element 42 has a flat thermal contact surface 42a, which abuts against the surface of the other side of the connection end 111 of the charging terminal 1.

[0053] However, this utility model is not limited to the illustrated embodiment. For example, in another exemplary embodiment of this utility model, a crimping structure can be formed on the connection end 111 of the charging terminal 1, and the connection end 111 of the charging terminal 1 can be crimped to one end 3a of the conductor core 30 of the cable 3. The heat-conducting element 42 has a thermal contact surface that matches the outer surface of the connection end 111 of the charging terminal 1 (the outer surface can be an arc-shaped surface or an irregular surface), and the thermal contact surface of the heat-conducting element 42 is integrally attached to the outer surface of the connection end 111 of the charging terminal 1. In this way, the thermal contact area between the heat-conducting element 42 and the connection end 111 of the charging terminal 1 can be increased.

[0054] like Figures 1 to 10 As shown in the illustrated embodiment, the electrical connection assembly 100 further includes a heat shrink tubing 5, which is fitted and heat-shrinked onto one end 3a of the conductor core 30 of the cable 3, the connection end 111 of the charging terminal 1, and the heat-conducting element 42 of the temperature detection module 4, thereby fixing the three together. In this way, the temperature detection module 4 can be fixed to the connection end 111 of the charging terminal 1.

[0055] However, this utility model is not limited to the illustrated embodiment. For example, in another exemplary embodiment of this utility model, the electrical connection assembly 100 further includes a crimping sleeve (not shown, but may be a metal sleeve), which is fitted and crimped onto one end 3a of the conductor core 30 of the cable 3, the connection end 111 of the charging terminal 1, and the heat-conducting element 42 of the temperature detection module 4, so that the three are fixed together. In this way, the temperature detection module 4 can be fixed to the connection end 111 of the charging terminal 1.

[0056] However, this invention is not limited to the illustrated embodiment. For example, in another exemplary embodiment, the electrical connection assembly 100 further includes an elastic clip (not shown). This elastic clip clamps one end 3a of the conductor core 30 of the cable 3, the connection end 111 of the charging terminal 1, and the heat-conducting element 42 of the temperature detection module 4, thus fixing the three together. In this way, the temperature detection module 4 can be fixed to the connection end 111 of the charging terminal 1.

[0057] However, the present invention is not limited to the embodiments shown in the figure. For example, in another exemplary embodiment of the present invention, the heat-conducting element 42 of the temperature detection module 4 can be bonded and fixed to the connection end 111 of the charging terminal 1 by thermally conductive adhesive.

[0058] like Figures 1 to 10 As shown in the illustrated embodiment, the electrical connection assembly 100 further includes a rear end cover 6. The rear end cover 6 is adapted to be inserted into the rear port of a socket 80 on the housing 8. A first through-hole 61 and a second through-hole 62 are formed on the end wall of the rear end cover 6, through which leads 41a of the cable 3 and the temperature sensor 41 are led out from the rear end cover 6.

[0059] like Figures 1 to 10 As shown in the illustrated embodiment, a plurality of raised ribs 6a are formed on the peripheral wall of the rear end cover 6. The plurality of raised ribs 6a extend along the axial direction of the rear end cover 6 and are spaced apart in the circumferential direction of the rear end cover 6, for interference fit with the inner wall surface of the rear port of the socket 80, so as to fix the rear end cover 6 to the rear port of the socket 80.

[0060] like Figures 1 to 10 As shown in the illustrated embodiment, the electrical connection assembly further includes a seal 7. This seal 7 is disposed within the inner cavity of the rear end cover 6 and forms a cable through-hole 71 allowing the cable 3 to pass through and a lead through-hole 72 allowing the lead 41a to pass through. The cable 3 passes through the cable through-hole 71 and is press-fitted with it to achieve a seal between the two. The lead 41a passes through the lead through-hole 72 and is press-fitted with it to achieve a seal between the two. The seal 7 is press-fitted with the inner wall surface of the inner cavity of the rear end cover 6 to achieve a seal between the two.

[0061] like Figures 1 to 10 As shown, in the illustrated embodiment, a sealing ring mounting groove 603 is formed on the outer peripheral surface of the rear end cover 6. The electrical connection assembly 100 also includes a sealing ring 9, which is mounted in the sealing ring mounting groove 603 of the rear end cover 6. The sealing ring 9 is adapted to be radially pressed between the inner wall of the rear end cover 6 and the rear port of the socket 80 to achieve a seal between the two.

[0062] like Figures 1 to 10As shown in the illustrated embodiment, the charging terminal 1 includes a terminal body 11 and an elastic member 12. The terminal body 11 has a cylindrical body 110 and a connecting end 111 connected to the rear end of the cylindrical body 110. The elastic member 12 is inserted into the front portion of the cylindrical body 110. The elastic member 12 is used for electrical contact with a mating terminal (not shown) inserted into the front portion of the cylindrical body 110, so that the mating terminal can be electrically connected to the terminal body 11 via the elastic member 12.

[0063] like Figures 1 to 10 As shown in the illustrated embodiment, the elastic element 12 includes two annular ends 12a and a plurality of elastic arms 12b. The two annular ends 12a are axially opposite to each other in the cylindrical body 110. The plurality of elastic arms 12b are connected between the two annular ends 12a and are spaced apart in the circumferential direction of the cylindrical body 110. The annular ends 12a are C-shaped with notches, and the plurality of elastic arms 12b are used for electrical contact with inserted mating terminals.

[0064] like Figures 1 to 10 As shown in the illustrated embodiment, a plurality of front limiting protrusions 11a and a plurality of rear limiting protrusions 11b are formed on the inner circumferential surface of the cylindrical body 110. The plurality of front limiting protrusions 11a are spaced apart in the circumferential direction of the cylindrical body 110 and are adapted to axially abut against the annular end 12a of the front end of the elastic member 12. The plurality of rear limiting protrusions 11b are spaced apart in the circumferential direction of the cylindrical body 110 and are adapted to axially abut against the annular end 12a of the rear end of the elastic member 12.

[0065] However, this utility model is not limited to the illustrated embodiment. For example, in another exemplary embodiment of this utility model, the charging terminal 1 includes a cylindrical body 110 and a connecting end 111 connected to the rear end of the cylindrical body 110. A plurality of contact spring arms are formed on the front part of the cylindrical body 110, and the plurality of contact spring arms are spaced apart in the circumferential direction of the cylindrical body 110 for electrical contact with the mating terminal inserted into the front part of the cylindrical body 110.

[0066] like Figures 1 to 10 As shown in the illustrated embodiment, a locking spring 11c is formed on the cylindrical body 110 of the charging terminal 1. The locking spring 11c is used to lock the electrical connection assembly 100 into the socket 80 of the housing 8 to prevent the electrical connection assembly 100 from being pulled out of the socket 80 of the housing 8.

[0067] like Figures 1 to 10As shown in the illustrated embodiment, an injection-molded seal 2 is injection-molded onto the rear end of the cylindrical body 110 of the charging terminal 1. The injection-molded seal 2 seals the insertion hole 80 of the housing 8 to prevent moisture from entering the housing 8 through the front port of the insertion hole 80. A slot 101 is formed on the rear end of the cylindrical body 110 of the charging terminal 1 to allow the injection molding material forming the injection-molded seal 2 to flow into the interior of the cylindrical body 110 through the slot 101 and seal the interior of the cylindrical body 110.

[0068] like Figures 1 to 10 As shown, in another exemplary embodiment of this utility model, a charging device is also disclosed. The charging device includes a housing 8 and an electrical connection assembly 100. A socket 80 is formed in the housing 8. The electrical connection assembly 100 is inserted into the socket 80 of the housing 8. A charging terminal 1 is used to mate with a mating terminal (not shown) inserted from the front port of the socket 80, and a cable 3 of the electrical connection assembly 100 is led out from the rear port of the socket 80.

[0069] like Figures 1 to 10 As shown, in the illustrated embodiment, the charging device is a charging socket, the charging terminal 1 is used to mate with the mating terminal of the charging gun (not shown) inserted from the front port of the socket 80, and the cable 3 of the electrical connection assembly 100 is led out from the rear port of the socket 80 for electrical connection to a rechargeable battery pack (not shown).

[0070] Those skilled in the art will understand that the embodiments described above are exemplary and can be improved upon. The structures described in the various embodiments can be freely combined without causing structural or principle conflicts, and these changes should fall within the protection scope of this utility model.

[0071] Although the present invention has been described in conjunction with the accompanying drawings, the embodiments disclosed in the drawings are intended to illustrate preferred embodiments of the present invention and should not be construed as a limitation thereof.

[0072] While some embodiments of the general concept of this utility model have been shown and described, those skilled in the art will understand that changes may be made to these embodiments without departing from the principles and spirit of the general concept of this utility model, the scope of which is defined by the claims and their equivalents.

[0073] It should be noted that the word "comprising" does not exclude other elements or steps, and the words "a" or "an" do not exclude multiple elements. Furthermore, any reference numerals in the claims should not be construed as limiting the scope of this invention.

Claims

1. An electrical connection assembly, characterized in that, include: The charging terminal (1) has a connection end (111). The cable (3), one end (3a) of its conductor core (30) is electrically connected to the connection end (111) of the charging terminal (1); and A temperature detection module (4) is fixed to the connection end (111) of the charging terminal (1) and makes thermal contact with the connection end (111) of the charging terminal (1) to detect the temperature of the connection end (111) of the charging terminal (1). The electrical connection assembly (100) is adapted to be inserted into a socket (80) on the housing (8) of the charging device. The temperature detection module (4) includes: Temperature sensor (41); and The heat-conducting component (42) encloses the body (410) of the temperature sensor (41). The heat-conducting element (42) makes thermal contact with the connection end (111) of the charging terminal (1) to transfer the heat of the connection end (111) of the charging terminal (1) to the body (410) of the temperature sensor (41).

2. The electrical connection assembly according to claim 1, characterized in that: The heat-conducting element (42) is columnar and has a mounting blind hole (402). The body (410) of the temperature sensor (41) is inserted into the mounting blind hole (402) of the heat-conducting element (42) and is interference-fitted with the inner wall surface of the mounting blind hole (402) to make close contact with the inner wall surface of the mounting blind hole (402).

3. The electrical connection assembly according to claim 1, characterized in that: The heat-conducting component (42) is columnar and has a mounting blind hole (402). The body (410) of the temperature sensor (41) is inserted into the mounting blind hole (402) of the heat-conducting component (42) and is bonded to the inner wall of the mounting blind hole (402) of the heat-conducting component (42) by thermal adhesive.

4. The electrical connection assembly according to claim 1, characterized in that: The heat-conducting component (42) is an injection molded part that is injection molded onto the body (410) of the temperature sensor (41) by an embedded injection molding process, so that the heat-conducting component (42) and the temperature sensor (41) become a single unit.

5. The electrical connection assembly according to claim 1, characterized in that: The connection end (111) of the charging terminal (1) is flat and has two opposite sides in its thickness direction. One end (3a) of the conductor core (30) of the cable (3) is soldered to the surface of one side of the connection end (111) of the charging terminal (1). The heat-conducting element (42) has a flat thermal contact surface (42a) that is attached to the surface on the other side of the connection end (111) of the charging terminal (1).

6. The electrical connection assembly according to claim 1, characterized in that: The connection end (111) of the charging terminal (1) is pressed onto one end (3a) of the conductor core (30) of the cable (3). The heat-conducting element (42) has a thermal contact surface that matches the outer surface of the connection end (111) of the charging terminal (1). The thermal contact surface of the heat-conducting element (42) is integrally attached to the outer surface of the connection end (111) of the charging terminal (1).

7. The electrical connection assembly according to claim 1, characterized in that, Also includes: Heat shrink tubing (5) is fitted and heat-shrinked onto one end (3a) of the conductor core (30) of the cable (3), the connection end (111) of the charging terminal (1), and the heat-conducting element (42) of the temperature detection module (4) to fix the temperature detection module (4) to the connection end (111) of the charging terminal (1).

8. The electrical connection assembly according to claim 1, characterized in that, Also includes: A crimping sleeve is fitted and crimped onto one end (3a) of the conductor core (30) of the cable (3), the connection end (111) of the charging terminal (1), and the heat-conducting element (42) of the temperature detection module (4) to fix the temperature detection module (4) onto the connection end (111) of the charging terminal (1).

9. The electrical connection assembly according to claim 1, characterized in that, Also includes: An elastic clip is used to clamp one end (3a) of the conductor core (30) of the cable (3), the connection end (111) of the charging terminal (1), and the heat-conducting component (42) of the temperature detection module (4) to fix the temperature detection module (4) to the connection end (111) of the charging terminal (1).

10. The electrical connection assembly according to claim 1, characterized in that: The heat-conducting component (42) of the temperature detection module (4) is bonded and fixed to the connection end (111) of the charging terminal (1) by thermal adhesive.

11. The electrical connection assembly according to claim 1, characterized in that, Also includes: The rear end cover (6) is adapted to be inserted into the rear port of the socket (80) on the housing (8). A first through hole (61) and a second through hole (62) are formed on the end wall of the rear cover (6). The cable (3) and the lead wire (41a) of the temperature sensor (41) are led out from the rear cover (6) through the first through hole (61) and the second through hole (62), respectively.

12. The electrical connection assembly according to claim 11, characterized in that: A plurality of raised ribs (6a) are formed on the peripheral wall of the rear end cover (6). The plurality of raised ribs (6a) extend along the axial direction of the rear end cover (6) and are spaced apart in the circumferential direction of the rear end cover (6) for interference fit with the inner wall surface of the rear port of the socket (80) to fix the rear end cover (6) into the rear port of the socket (80).

13. The electrical connection assembly according to claim 11, characterized in that, Also includes: The sealing element (7) is disposed in the inner cavity of the rear end cover (6) and has a cable through hole (71) that allows the cable (3) to pass through and a lead through hole (72) that allows the lead wire (41a) to pass through. The cable (3) passes through the cable through hole (71) and is press-fitted with the cable through hole (71) to achieve a seal between the two. The lead wire (41a) passes through the lead wire through hole (72) and is press-fitted with the lead wire through hole (72) to achieve a seal between the two. The sealing element (7) is interference-fitted with the inner wall of the inner cavity of the rear cover (6) to achieve a seal between the two.

14. The electrical connection assembly according to claim 13, characterized in that: A sealing ring mounting groove (603) is formed on the outer peripheral surface of the rear end cover (6). The electrical connection assembly (100) further includes: A sealing ring (9) is installed in the sealing ring mounting groove (603) of the rear end cover (6). The sealing ring (9) is adapted to be radially pressed between the inner walls of the rear end cap (6) and the rear port of the jack (80) to achieve a seal between the two.

15. The electrical connection assembly according to claim 1, characterized in that: The charging terminal (1) includes: Terminal body (11) having a cylindrical body (110) and a connecting end (111) connected to the rear end of the cylindrical body (110); and The elastic element (12) is inserted into the front part of the cylindrical body (110). The elastic element (12) is used to make electrical contact with the mating terminal inserted in the front of the cylindrical body (110), so that the mating terminal can be electrically connected to the terminal body (11) via the elastic element (12).

16. The electrical connection assembly according to claim 15, characterized in that: The elastic element (12) includes: Two annular ends (12a) are axially opposite each other in the cylindrical body (110); and Multiple elastic arms (12b) are connected between the two annular ends (12a) and are spaced apart in the circumferential direction of the cylindrical body (110). The annular end (12a) is C-shaped with a notch, and the plurality of elastic arms (12b) are used for electrical contact with the inserted mating terminals.

17. The electrical connection assembly according to claim 16, characterized in that: Multiple front limiting protrusions (11a) and multiple rear limiting protrusions (11b) are formed on the inner circumferential surface of the cylindrical body (110). The plurality of front limiting protrusions (11a) are spaced apart in the circumferential direction of the cylindrical body (110) and are adapted to axially abut against the annular end (12a) of the front end of the elastic member (12). The plurality of rear limiting protrusions (11b) are spaced apart in the circumferential direction of the cylindrical body (110) and are adapted to axially abut against the annular end (12a) at the rear end of the elastic member (12).

18. The electrical connection assembly according to claim 1, characterized in that: The charging terminal (1) includes a cylindrical body (110) and a connecting end (111) connected to the rear end of the cylindrical body (110). A plurality of contact spring arms are formed on the front part of the cylindrical body (110). The plurality of contact spring arms are spaced apart in the circumferential direction of the cylindrical body (110) and are used to make electrical contact with the mating terminal inserted into the front part of the cylindrical body (110).

19. The electrical connection assembly according to claim 15 or 18, characterized in that: A locking spring (11c) is formed on the cylindrical body (110) of the charging terminal (1), the locking spring (11c) is used to lock the electrical connection assembly (100) into the socket (80) of the housing (8) to prevent the electrical connection assembly (100) from being pulled out of the socket (80) of the housing (8).

20. The electrical connection assembly according to claim 15 or 18, characterized in that: A molding seal (2) is injection molded on the rear end of the cylindrical body (110) of the charging terminal (1). The molding seal (2) is used to seal the insertion hole (80) of the housing (8) to prevent moisture from entering the housing (8) through the front port of the insertion hole (80). A slot (101) is formed on the rear end of the cylindrical body (110) of the charging terminal (1) to allow the injection molding material forming the injection seal (2) to flow into the interior of the cylindrical body (110) through the slot (101) and seal the interior of the cylindrical body (110).

21. A charging device, characterized in that, include: The housing (8) has an insertion hole (80); and The electrical connection assembly (100) according to any one of claims 1-20 is inserted into the socket (80). The charging terminal (1) is used to mate with a mating terminal inserted from the front port of the socket (80), and the cable (3) of the electrical connection assembly (100) is led out from the rear port of the socket (80).

22. The charging device according to claim 21, characterized in that: The charging device is a charging socket, the charging terminal (1) is used to mate with the mating terminal of the charging gun inserted from the front port of the socket (80), and the cable (3) of the electrical connection assembly (100) is led out from the rear port of the socket (80) for electrical connection to a rechargeable battery pack.

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