A terminal assembly, charging base and vehicle charging device

Abstract

The utility model relates to a charging device field especially relates to a terminal subassembly, charging seat and vehicle charging device, including terminal and guide piece, the terminal is cylindrical, the guide piece is connected with terminal, the outer circumferential surface of guide piece is provided with the convex, the convex is used for with the guide groove of charging seat guide cooperation, the anti -rotation gap that is formed by the outer circumferential inside recess of terminal is provided on the terminal, the housing is provided with anti -rotation boss, the anti -rotation gap is used for with the anti -rotation boss on the charging seat and inserts the joint cooperation, in the assembly, through the guide piece insertion guide groove, along the first direction and promote guide piece along guide groove sliding, until the terminal subassembly whole enters the installation cavity, makes the anti -rotation gap and anti -rotation boss as far as possible alignment, the phenomenon of the assembly personnel big angle rotation terminal is reduced obviously.

Description

Technical Field

[0001] This utility model belongs to the field of connectors, and in particular relates to a terminal assembly, a charging socket, and a vehicle charging device. Background Technology

[0002] In the charging connectors of various electronic products, a plug with stamped terminals is commonly used to mate with the charging socket. To prevent short circuits or equipment damage caused by reverse insertion, anti-reverse insertion design is a key function of such connectors. In the prior art, a common method is to set a limiting groove on the plastic-coated boss of the round terminal and a corresponding limiting block in the inner cavity of the charging socket, so that directional assembly is achieved through the cooperation of the groove and the block.

[0003] However, this existing design has significant drawbacks in actual assembly. Because the main body of the round terminal and its plastic-coated boss is typically cylindrical, it is completely free and can rotate 360 ​​degrees circumferentially before being inserted into the charging socket. During assembly, operators cannot visually see the positions of the internal limiting grooves and limiting blocks; they must manually rotate the terminal to tentatively find the correct alignment angle. This process often requires rotating the terminal a large circle, even exceeding 180 degrees, before the limiting groove and limiting block are accidentally aligned and finally snapped into place. The existing terminals require finding a single correct alignment angle during assembly, a time-consuming process that hinders fast and smooth assembly and restricts production efficiency. Summary of the Invention

[0004] The technical problem to be solved by this utility model is to provide a terminal assembly, a charging base and a vehicle charging device, addressing the problem of low assembly efficiency when assembling existing round terminals into the charging socket.

[0005] To address the aforementioned issues, this utility model provides a terminal assembly, including a terminal and a guide member. The terminal is cylindrical, and the guide member is connected to the terminal. A protrusion is provided on the outer circumferential surface of the guide member, which is used to guide and cooperate with the guide groove of the charging base. The terminal is provided with an anti-rotation notch formed by the inward indentation of the outer periphery of the terminal, and the anti-rotation notch is used to engage with the anti-rotation protrusion on the charging dock.

[0006] Optionally, multiple protrusions are provided, and the multiple protrusions are spaced apart along the outer peripheral surface of the guide member.

[0007] Optionally, at least one of the protrusions extends at a non-zero angle with the radial direction of the guide, and at least one of the protrusions extends radially along the guide.

[0008] Optionally, the anti-rotation notch has a first opening and a second opening, the first opening communicating with the second opening, such that the anti-rotation protrusion is inserted into the second opening from the first opening.

[0009] Optionally, the terminal is provided with two limiting pieces, which are disposed on both sides of the anti-rotation notch along the circumference of the terminal, and the limiting pieces protrude from the outer surface of the terminal from the inside to the outside.

[0010] On the other hand, the present invention also provides a charging dock, including a housing and the aforementioned terminal assembly. The housing has a mounting cavity extending through it in a first direction. The housing has a first side and a second side opposite to each other in the first direction. The terminal is inserted into the mounting cavity in the direction from the first side to the second side. The mounting cavity has a guide groove extending in the first direction. The protrusion and the guide groove are guided and engaged. The housing is provided with an anti-rotation protrusion, which is inserted into the anti-rotation notch.

[0011] Optionally, the terminal passes through the guide member, and the guide member partially or completely protrudes from the outer periphery of the terminal, such that the end face of the guide member facing the first side of the housing forms a stop surface. The inner wall of the housing mounting cavity is provided with anti-reverse claws and a stop ring. Multiple anti-reverse claws are arranged around the guide member. The anti-reverse claws are elastic and block the stop surface to prevent the guide member from moving from the second side to the first side. The stop ring is formed by bending inward from one end of the mounting cavity near the second side, and the stop ring stops the terminal to prevent the terminal from moving from the first side to the second side.

[0012] Optionally, the protrusion and the guide groove are in a clearance fit in the circumferential direction; the cross-sectional area of ​​the anti-rotation protrusion gradually increases from the first side to the second side.

[0013] Optionally, the inner wall of the housing is provided with thermally conductive silicone, and the terminal is provided with a thermally conductive part, the thermally conductive part protruding from the inside to the outside of the guide member, and the thermally conductive silicone abutting against the thermally conductive part.

[0014] On the other hand, this utility model also provides a vehicle charging device, including a charging pile and a charging gun. The charging pile includes the aforementioned charging socket, and the charging gun includes a gun body and a charging terminal. The gun body can be inserted into the charging socket; when the gun body is inserted into the charging socket, the charging terminal is inserted into the terminal.

[0015] The present invention provides a terminal assembly, a charging base, and a vehicle charging device. During assembly, a guide member is inserted into a guide groove beforehand, and then the guide member is pushed along the guide groove in a first direction until the entire terminal assembly enters the mounting cavity. This makes the anti-rotation notch and the anti-rotation protrusion as aligned as possible, and significantly reduces the phenomenon of assembly personnel rotating the terminal at large angles. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments of this utility model will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a front view of the first side of the charging dock provided in one embodiment of the present invention; Figure 2 This is an enlarged view of the first side of the charging dock provided in one embodiment of the present invention; Figure 3 This is a cross-sectional view of a charging dock provided in one embodiment of the present invention; Figure 4 This is a partial perspective view of a charging stand provided in one embodiment of the present utility model; Figure 5 This is a perspective view of the first side of the terminals of the charging dock provided in one embodiment of the present invention; Figure 6 This is a perspective view of the second side of the terminals of the charging dock provided in one embodiment of the present invention.

[0018] The reference numerals in the accompanying drawings are as follows: 1. Housing; 101. First charging port; 102. Second charging port; 11. Mounting cavity; 12. First side; 13. Second side; 14. Guide rib; 15. Guide groove; 16. Anti-rotation protrusion; 17. Anti-reverse claw; 18. Stop ring; 19. Thermally conductive silicone; 2. Terminal; 21. Anti-rotation notch; 22. Limiting piece; 23. Thermally conductive part; 3. Guide component; 31. Protrusion; 32. Stop surface. Detailed Implementation

[0019] To make the technical problems solved, technical solutions, and beneficial effects of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0020] In the description of this utility model, it should be understood that the terms "longitudinal," "radial," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0021] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0022] like Figures 1 to 4 As shown, one embodiment of this utility model provides a terminal assembly for mounting inside a charging dock. (Refer to...) Figures 3 to 6 The terminal assembly includes a terminal 2 and a guide 3. The terminal 2 is a cylindrical terminal 2, which is inserted into a mounting cavity 11 within the charging socket from a first side 12 along a first direction. The guide 3 is connected to the terminal 2, and a protrusion 31 is provided on the outer circumferential surface of the guide 3. A guide groove 15 extending along the first direction is provided on the mounting cavity 11, with the protrusion 31 and the guide groove 15 providing a guiding fit. The first side 12 of the terminal 2 has an anti-rotation notch 21 formed by an inward indentation from the outer circumference of the terminal 2. The housing 1 has an anti-rotation protrusion 16, which is inserted into the anti-rotation notch 21. The anti-rotation notch 21 and the protrusion 31 are located at opposite ends of the terminal assembly along the first direction. (Refer to...) Figure 5 The anti-rotation notch 21 has a first opening and a second opening. The first opening is opposite to the first side 12 along a first direction, and the second opening is opposite to the center of the terminal 2. The anti-rotation protrusion 16 is inserted into the second opening from the first opening. In other embodiments, the anti-rotation notch 21 may penetrate the sidewall of the terminal 2 from the inside out. Regardless of the specific type of the anti-rotation notch 21, it is acceptable as long as it facilitates the insertion and engagement of the anti-rotation protrusion 16 and the anti-rotation notch 21 to restrict the circumferential rotation of the terminal assembly.

[0023] In this embodiment, during assembly, the guide member 3 is pre-inserted into the guide groove 15, and then the guide member 3 is pushed along the guide groove 15 in the first direction until the terminal assembly is fully inserted into the mounting cavity 11, thereby aligning the anti-rotation notch 21 and the anti-rotation protrusion 16 as much as possible, significantly reducing the phenomenon of the assembler rotating the terminal 2 at a large angle.

[0024] Generally, the guide 3 and the protrusion 31 are integrally formed. In this embodiment, the two are injection molded and connected to the terminal 2. In this embodiment, the guide 3 is injection molded on the terminal 2, which closes the end of the inner hole of the terminal 2 near the first side 12 and covers the end of the terminal 2 near the first side 12. The protrusion 31 is injection molded on the surface of the guide 3 away from the second side 13.

[0025] In other embodiments, the guide 3 may be injection molded only on one end of the terminal 2 near the first side 12, that is, sleeved on the outer peripheral surface of the terminal 2. In other embodiments, the protrusion 31 may be formed on the outer peripheral surface of the guide 3.

[0026] Reference Figure 3 In one embodiment, multiple protrusions 31 are provided. In this embodiment, "multiple" means two or more. Multiple protrusions 31 are spaced apart along the outer peripheral surface of the guide member 3. Multiple guide grooves 15 are provided, and each guide groove 15 corresponds to one of the multiple protrusions 31.

[0027] Reference Figure 5 In one embodiment, two limiting pieces 22 are provided on the terminal 2. The two limiting pieces 22 are disposed on both sides of the anti-rotation notch 21 along the circumference of the terminal 2, and the limiting pieces 22 protrude from the inside to the outside of the terminal 2. The limiting pieces increase the radial depth of the anti-rotation notch 21 along the terminal 2, increase the contact area between the anti-rotation notch 21 and the anti-rotation protrusion 16, and improve the connection strength when the two are inserted.

[0028] In one embodiment, this embodiment also provides a charging dock, which includes a housing 1 and a terminal assembly as described in the above embodiment. The charging dock is provided with a first charging port 101 and a second charging port 102. One of the first charging port 101 and the second charging port 102 is a fast charging port and the other is a slow charging port. The terminal assembly can be respectively disposed in the first charging port 101 and / or the second charging port 102. The housing 1 is provided with a mounting cavity 11 extending through the housing 1 along a first direction. The housing 1 has a first side 12 and a second side 13 opposite to each other along the first direction. The charging dock is provided with a mounting cavity 11. A guide groove is provided on the inner wall of the mounting cavity. The terminal assembly is installed in the mounting cavity 11, and the protrusion slides into the mounting cavity 11 from the guide groove.

[0029] In this embodiment, to facilitate the quick insertion and engagement of the anti-rotation notch 21 and the anti-rotation protrusion 16, the cross-sectional area of ​​the anti-rotation protrusion 16 gradually increases from the first side 12 to the second side 13. This makes the end of the anti-rotation protrusion 16 closer to the first side 12 sharper than the end closer to the second side 13, thereby increasing the speed at which the anti-rotation protrusion 16 enters the anti-rotation notch 21.

[0030] In one embodiment, the protrusion 31 is loosely fitted into the guide groove 15 in the circumferential direction of the mounting cavity 11. During assembly, the protrusion 31 is not perfectly fitted into the guide groove 15. Along the circumferential direction of the mounting cavity 11, the two side walls of the protrusion 31 correspond to and are spaced apart from the two side walls of the guide groove 15. Furthermore, the side of the protrusion 31 near the bottom wall of the guide groove 15 is also spaced apart from the bottom wall of the guide groove 15, so that when the terminal 2 is inserted into the housing 1 of the charging socket, the terminal 2 can rotate at a small angle in the circumferential direction.

[0031] Reference Figure 4 In this embodiment, multiple guide ribs 14 are provided on the inner wall of the mounting cavity 11 along the circumference of the mounting cavity 11. The spacing between two adjacent guide ribs 14 is slightly larger than the width of the protrusion 31. At this time, the spacing between the two adjacent guide ribs 14 forms a guide groove 15. The number of guide grooves 15 is determined by the number of protrusions 31. In this embodiment, there are two protrusions 31. Since the protrusions 31 and the guide grooves 15 are in clearance fit, when the anti-rotation protrusion 16 and the anti-rotation notch 21 are not aligned, the anti-rotation protrusion 16 and the anti-rotation notch 21 can be aligned by rotating the terminal assembly at a small angle.

[0032] In one embodiment, one protrusion 31 extends at a non-zero angle to the radial direction of the guide 3, and the other protrusion 31 extends radially along the guide 3. Because the two protrusions have different radial angles with the guide 3, the assembler can quickly identify the installation angle during assembly, thus improving assembly efficiency.

[0033] In one embodiment, the terminal 2 passes through the guide member 3, such that part or all of the guide member 3 protrudes from the outer periphery of the terminal 2, and the surface of the guide member 3 near the first side 12 forms a stop surface 32; the inner wall of the mounting cavity 11 of the housing 1 is provided with a back-locking claw 17 and a stop ring 18, a plurality of back-locking claws 17 are arranged around the guide member 3, the back-locking claws 17 are elastic, and the back-locking claws 17 stop the stop surface 32 to prevent the guide member 3 from moving from the second side 13 to the first side 12; the stop ring 18 is formed by bending inward from one end of the mounting cavity 11 near the second side 13, and the stop ring 18 stops the terminal 2 to prevent the terminal 2 from moving from the first side 12 to the second side 13.

[0034] Reference Figure 3In this embodiment, along the first direction, one end of the terminal 2 is stopped by the stop ring 18, and the other end is stopped by the anti-reverse claw 17 and the stop surface 32, so that both ends of the terminal 2 are limited, thereby stably installing the terminal 2 in the mounting cavity 11.

[0035] In one embodiment, the inner wall of the housing is provided with thermally conductive silicone 19 and a temperature sensor. A thermally conductive part 23 is provided on the terminal 2, and the thermally conductive part 23 extends outward from the guide member 3. The thermally conductive silicone 19 abuts against the thermally conductive part 23. In this embodiment, the thermally conductive part 23 is formed by bending a portion of the side wall of the terminal 2 outward, and the thermally conductive part 23 and the terminal 2 are integrally formed. In the figure, the thermally conductive part 23 is bent into a Z-shape, and the outermost part of the thermally conductive part 23 along the radial direction of the terminal 2 extends outward from the thermally conductive member 3. When the terminal is assembled into the housing 1, the thermally conductive part 23 and the thermally conductive silicone 19 come into contact. The temperature of the terminal 2 is transferred to the thermally conductive silicone 19 through the thermally conductive part 23, and the thermally conductive silicone 19 transfers the temperature of the terminal 2 to the temperature sensing component (temperature sensor) to monitor the temperature of the terminal in real time.

[0036] Therefore, in this embodiment, when the terminal 2 is assembled into the housing in the correct direction, not only do the anti-rotation notch 21 and the anti-rotation protrusion 16 fit together, but the thermally conductive silicone 19 and the thermally conductive part 23 also face each other and abut against each other.

[0037] On the other hand, this utility model also provides a vehicle charging device, including a charging pile and a charging gun. The charging pile includes the aforementioned charging base, and the charging gun includes a gun body and charging terminals. The gun body can be plugged into the charging base; when the gun body is plugged into the charging base, the charging terminals are plugged into the terminals.

[0038] The above-described embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model, and should all be included within the protection scope of this utility model.

Claims

1. A terminal assembly, characterized in that, It includes a terminal and a guide. The terminal is cylindrical and the guide is connected to the terminal. The outer peripheral surface of the guide is provided with a protrusion for guiding and engaging with the guide groove of the charging base. The terminal is provided with an anti-rotation notch formed by the inward indentation of the outer periphery of the terminal, and the anti-rotation notch is used to engage with the anti-rotation protrusion on the charging dock.

2. The terminal assembly according to claim 1, characterized in that, The protrusions are provided in multiple ways, and the multiple protrusions are spaced apart along the outer peripheral surface of the guide member.

3. The terminal assembly according to claim 2, characterized in that, At least one of the protrusions extends at a non-zero angle with the radial direction of the guide member, and at least one of the protrusions extends radially along the guide member.

4. The terminal assembly according to claim 1, characterized in that, The anti-rotation notch has a first opening and a second opening, the first opening being connected to the second opening, such that the anti-rotation protrusion is inserted into the second opening from the first opening.

5. The terminal assembly according to claim 4, characterized in that, The terminal is provided with two limiting pieces, which are located on both sides of the anti-rotation notch along the circumference of the terminal. The limiting pieces protrude from the inside to the outside of the terminal.

6. A charging stand, characterized in that, The device includes a housing and a terminal assembly as described in any one of claims 1-5, wherein the housing has a mounting cavity extending through the housing in a first direction, and the housing has a first side and a second side opposite to each other in the first direction; the terminal is inserted into the mounting cavity in a direction from the first side to the second side, and the mounting cavity has a guide groove extending in the first direction, wherein the protrusion and the guide groove are guidedly engaged; The housing is provided with an anti-rotation protrusion, which is inserted into the anti-rotation notch.

7. The charging stand according to claim 6, characterized in that, The terminal passes through the guide member, and part or all of the guide member protrudes from the outer periphery of the terminal, such that the end face of the guide member facing the first side of the housing forms a stop surface. The inner wall of the housing mounting cavity is provided with anti-reverse claws and a stop ring. Multiple anti-reverse claws are arranged around the guide member. The anti-reverse claws are elastic and block the stop surface to prevent the guide member from moving from the second side to the first side. The stop ring is formed by bending inward from one end of the mounting cavity near the second side, and the stop ring stops the terminal to prevent the terminal from moving from the first side to the second side.

8. The charging stand according to claim 6, characterized in that, The protrusion and the guide groove are in a clearance fit in the circumferential direction; the cross-sectional area of ​​the anti-rotation protrusion gradually increases from the first side to the second side.

9. The charging stand according to claim 6, characterized in that, The inner wall of the housing is provided with thermally conductive silicone, and the terminal is provided with a thermally conductive part. The thermally conductive part extends out of the guide member from the inside to the outside, and the thermally conductive silicone abuts against the thermally conductive part.

10. A vehicle charging device, characterized in that, The device includes a charging pile and a charging gun. The charging pile includes a charging socket as described in any one of claims 6-9. The charging gun includes a gun body and a charging terminal. The gun body can be inserted into the charging socket. When the gun body is inserted into the charging socket, the charging terminal is inserted into the terminal.

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