Charging dock

Abstract

This invention discloses a charging dock, comprising: a first cavity communicating with the outside; a second cavity communicating with the first cavity, the width of the second cavity being greater than that of the first cavity in a first direction; a third cavity communicating with the second cavity; a fourth cavity communicating with the third cavity and extending along a second direction perpendicular to the first direction, the fourth cavity having a first locking part; and a terminal assembly located in the fourth cavity, including a charging terminal, a second locking part, and a third locking part, the third locking part being fixed to the charging terminal, the second locking part cooperating with the first locking part; and a fourth locking part movable in the first direction, the fourth locking part cooperating with the third locking part. This charging dock achieves secondary locking of the terminals by setting a simple structural fit on existing parts, replacing the function of existing terminal pressure plates, and providing high locking reliability.

Description

Technical Field

[0001] This invention relates to the field of charging socket technology, and more particularly to a charging stand. Background Technology

[0002] In existing technology, new energy vehicles have charging sockets for matching with charging guns to charge the vehicle battery. To prevent the charging terminals in the charging socket from being pushed out by the charging gun, a locking structure is needed to lock the charging terminals in the charging socket. Usually, a pressure plate is set on the charging terminals to lock them. However, in actual use, it is easy to forget to lock the charging terminals with the terminal pressure plate, and once the pressure plate is damaged, the reliability of the lock cannot be guaranteed, which may lead to the pressure plate being accidentally unlocked.

[0003] Therefore, it is necessary to provide a new charging dock to solve the above problems. Summary of the Invention

[0004] The purpose of this invention is to provide a charging dock that can easily and reliably lock the charging terminals.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A charging dock includes a housing and a cable, the housing comprising:

[0007] The first cavity is connected to the outside world;

[0008] The second cavity is connected to the first cavity, and the width of the second cavity in the first direction is greater than the width of the first cavity in the first direction;

[0009] The third cavity is connected to the second cavity;

[0010] A fourth cavity is connected to the third cavity and extends along a second direction, which is perpendicular to the first direction. A first locking part is provided in the fourth cavity.

[0011] The charging dock also includes:

[0012] A terminal assembly is located in the fourth cavity and connected to the cable. The terminal assembly includes a charging terminal, a second locking part, and a third locking part. The third locking part is fixed to the charging terminal, and the second locking part cooperates with the first locking part.

[0013] The fourth locking part is at least partially located in the second cavity and the third cavity, the fourth locking part is movable in the first direction, and the fourth locking part cooperates with the third locking part.

[0014] As a further improved technical solution of the present invention, the fourth locking part includes a circuit board and a socket fixed on the circuit board, the circuit board being located in the third cavity and the socket being located in the second cavity;

[0015] The circuit board has a second through hole, the socket is at least partially located in the second through hole, and the socket has a slot.

[0016] As a further improved technical solution of the present invention, the fourth cavity includes an upper cavity located on one side of the circuit board in the second direction, and a lower cavity located on the other side of the circuit board in the second direction, wherein the first locking part, the second locking part and the third locking part are located in the lower cavity;

[0017] The circuit board has a first through hole, which is located between the upper cavity and the lower cavity and connects the upper cavity and the lower cavity.

[0018] As a further improved technical solution of the present invention, the housing further includes a fifth cavity, which is connected to the third cavity and to the outside.

[0019] The fourth locking part also includes a push rod, which is fixed to the circuit board and is at least partially located in the fifth cavity.

[0020] As a further improved technical solution of the present invention, the push rod includes a first limiting part and a second limiting part, and a third limiting part is provided in the fifth cavity. The third limiting part can be adapted to the first limiting part and the second limiting part respectively.

[0021] When the third limiting part cooperates with the first limiting part, in the first direction, the center line of the slot does not coincide with the center line of the first cavity;

[0022] When the third limiting part cooperates with the second limiting part, in the first direction, the center line of the slot coincides with the center line of the first cavity, and the circuit board is at least partially attached to the third locking part in the second direction.

[0023] As a further improvement of the present invention, the push rod includes a first fixing part, and the socket includes a second fixing part, the second fixing part cooperating with the first fixing part.

[0024] As a further improvement of the present invention, the housing includes a first housing and a second housing, the first housing includes a third fixing part, the second housing includes a fourth fixing part, and the fourth fixing part cooperates with the third fixing part.

[0025] As a further improved technical solution of the present invention, the second housing further includes a first extension portion, which extends from the edge of the second housing toward the first housing and fits against the outer wall of the first housing, and the fourth fixing portion is located in the first extension portion.

[0026] As a further improvement of the present invention, the fourth cavity is further provided with a groove, and the first locking part is located in the groove.

[0027] As a further improvement of the present invention, it also includes a clamping fastener fixed to the housing, wherein the housing includes a fifth fixing part, the clamping fastener includes a sixth fixing part, and the sixth fixing part cooperates with the fifth fixing part;

[0028] The clamp is provided with a third through hole, through which the cable passes.

[0029] Compared to existing technologies, the advantages of the charging dock of the present invention are as follows: Through a primary locking mechanism involving the engagement of the first and second locking parts, and a secondary locking mechanism involving the engagement of the third and fourth locking parts, while the terminals are radially limited within the fourth cavity, the primary and secondary locking mechanisms respectively limit the terminals axially in both directions, achieving omnidirectional locking of the terminals and preventing accidental unlocking, thus ensuring the reliability of the terminal locking. This charging dock achieves secondary locking of the terminals using a simple structural design on existing components, replacing the function of existing terminal pressure plates, and eliminating the need for additional parts, thereby reducing costs. The locking and unlocking operations of the terminals are simple, requiring no special tools, and it is easy to determine whether the terminals have completed the secondary locking. Attached Figure Description

[0030] Figure 1 This is a three-dimensional structural diagram of a charging stand according to a specific embodiment of the present invention;

[0031] Figure 2 This is a top view of a charging dock in a locked state according to a specific embodiment of the present invention.

[0032] Figure 3 for Figure 2 Schematic diagram of the cross-sectional structure along the AA direction;

[0033] Figure 4 for Figure 2 Schematic diagram of the cross-sectional structure along the BB direction;

[0034] Figure 5 for Figure 4 Enlarged structural diagram of region A in the middle;

[0035] Figure 6 This is a cross-sectional structural diagram of a charging dock in a locked state according to a specific embodiment of the present invention;

[0036] Figure 7 This is a top view of a charging dock in a secondary locked state according to a specific embodiment of the present invention;

[0037] Figure 8 for Figure 7 A schematic diagram of the cross-sectional structure along the CC direction;

[0038] Figure 9 This is a cross-sectional structural diagram of a charging dock in a secondary locking state according to a specific embodiment of the present invention;

[0039] Figure 10 for Figure 9 A magnified structural diagram of region B in the middle;

[0040] Figure 11 This is a three-dimensional structural diagram of the housing according to a specific embodiment of the present invention;

[0041] Figure 12 for Figure 11 A schematic diagram of the exploded structure;

[0042] Figure 13 This is a cross-sectional structural diagram of the shell according to a specific embodiment of the present invention;

[0043] Figure 14 This is a three-dimensional structural diagram of the housing according to a specific embodiment of the present invention;

[0044] Figure 15 This is a schematic diagram of the structure of the first housing according to a specific embodiment of the present invention;

[0045] Figure 16 for Figure 15 A magnified structural diagram of region C in the middle;

[0046] Figure 17 This is a schematic diagram of the assembly of the first housing and the push rod according to a specific embodiment of the present invention;

[0047] Figure 18 for Figure 17 A magnified structural diagram of region D in the middle;

[0048] Figure 19 This is a schematic diagram of the assembly of the first housing and the push rod according to a specific embodiment of the present invention;

[0049] Figure 20 for Figure 19 A magnified structural diagram of region E in the middle;

[0050] Figure 21 This is a cross-sectional view of the first housing and push rod assembled according to a specific embodiment of the present invention;

[0051] Figure 22This is an assembly diagram of a circuit board, socket, and push rod according to a specific embodiment of the present invention;

[0052] Figure 23 This is an assembly diagram of a circuit board, socket, and push rod according to a specific embodiment of the present invention;

[0053] Figure 24 This is a three-dimensional structural diagram of a terminal assembly according to a specific embodiment of the present invention;

[0054] Figure 25 This is a three-dimensional structural diagram of a charging stand according to a specific embodiment of the present invention;

[0055] Figure 26 This is a cross-sectional structural diagram of a charging stand according to a specific embodiment of the present invention. Detailed Implementation

[0056] The exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. If several embodiments exist, features in these embodiments may be combined with each other without conflict. When the description refers to the drawings, unless otherwise stated, the same numbers in different drawings represent the same or similar elements. The descriptions in the following exemplary embodiments do not represent all embodiments consistent with the present invention; rather, they are merely examples of apparatuses, products, and / or methods consistent with some aspects of the present invention as set forth in the claims.

[0057] The terminology used in this invention is for the purpose of describing particular embodiments only and is not intended to limit the scope of protection of this invention. The singular forms “a,” “the,” or “the” as used in the specification and claims of this invention are also intended to include the plural forms unless the context clearly indicates otherwise.

[0058] It should be understood that the terms "first," "second," and similar words used in the specification and claims of this invention do not indicate any order, quantity, or importance, but are merely used to distinguish features. Similarly, the terms "an" or "a" do not indicate a quantity limitation, but rather indicate the presence of at least one. Unless otherwise stated, the terms "before," "after," "upper," "lower," and similar words appearing in this invention are for ease of explanation only and are not limited to a specific location or spatial orientation. The terms "comprising" or "including" are an open-ended expression, meaning that the element preceding "comprising" or "including" encompasses the element following "comprising" or "including" and its equivalents, but this does not preclude the element preceding "comprising" or "including" from also including other elements. In this invention, the term "several" means two or more.

[0059] Please see Figures 1 to 26 As shown in the figure, an embodiment of the present invention discloses a charging dock, which includes a housing 10 and a terminal assembly 20, a circuit board 30, a socket 40, and a push rod 50 installed in the housing 10. The socket 40 and the push rod 50 are directly or indirectly fixed to the circuit board 30, and the socket 40 is adapted to insert a connector 300.

[0060] To facilitate the description of the embodiments of the present invention, a first direction and a second direction are provided for auxiliary explanation, wherein D1 in the figure represents the first direction and D2 represents the second direction.

[0061] Please see Figure 11 and Figure 12 As shown, the housing 10 includes a first housing 11 and a second housing 12, with the second housing 12 fixed above the first housing 11. In this embodiment, the first housing 11 is provided with a third fixing part 111, and the second housing 12 is correspondingly provided with a fourth fixing part 121. The fourth fixing part 121 cooperates with the third fixing part 111, and the second housing 12 is fastened to the first housing 11. In other embodiments, the first housing 11 is provided with a snap-hole structure, and the second housing 12 is provided with a snap-on structure, and the two are also fastened together. Of course, the first housing 11 and the second housing 12 can also be fixed to each other using other commonly used fixing methods. Further, the second housing 12 also includes a first extension part 122, which extends from the edge of the second housing 12 toward the first housing 11 and fits against the outer wall of the first housing 11. The fourth fixing part 121 is located in the first extension part 122.

[0062] Please see Figures 11 to 13As shown, after the first housing 11 and the second housing 12 are fixedly installed, the housing 10 has a first cavity 110, a second cavity 120, a third cavity 130, a fourth cavity 140, and a fifth cavity 150. The first cavity 110 communicates with the outside, the second cavity 120 communicates with the first cavity 110, the third cavity 130 communicates with the second cavity 120, the fourth cavity 140 communicates with the third cavity 130, and the fifth cavity 150 communicates with the third cavity 130 and is also communicated with the outside. The first cavity 110 is adapted to accommodate a connector 300, the second cavity 120 is adapted to accommodate a socket 40, the third cavity 130 is adapted to accommodate a circuit board 30, the fourth cavity 140 is adapted to accommodate a terminal assembly 20, and the fifth cavity 150 is adapted to accommodate a push rod 50. Specifically, terminal assembly 20 can be moved and fixed within the fourth cavity 140; push rod 50 can be moved and fixed within the fifth cavity 150; socket 40 can be moved and fixed within the second cavity 120; circuit board 30 can be moved and fixed within the third cavity 130; connector 300 can be moved and fixed within the first cavity 110. The first cavity 110 is located above the second cavity 120, and the axial projection of the first cavity 110 is located within the outer contour of the second cavity 120. Further, the width of the second cavity 120 in the first direction is greater than the width of the first cavity 110 in the first direction; the fourth cavity 140 extends along the second direction; the first direction is perpendicular to the second direction.

[0063] Please see Figure 3 , Figure 6 and 24 As shown, the terminal assembly 20 includes a charging terminal 21, a third locking portion 23 covering the periphery of the charging terminal 21, and a second locking portion 22. The charging terminal 21 also includes a wiring portion 211, which is adapted to securely connect a cable 62. Specifically, after the cable 62 is placed inside the wiring portion 211, the movable portion of the wiring portion 211 is pressed and covered around the outside of the cable 62. Further, at least the outer portion of the wiring portion 211 connected to the cable 62 is wrapped with a reinforcing unit 24, which is adapted to strengthen the secure connection between the cable 62 and the charging terminal 21, and also serves a waterproof function. The second locking portion 22 protrudes radially outward from the terminal assembly 20 and is located at the end of the charging terminal 21 away from the wiring portion 211. The second locking portion 22 protrudes outward from the charging terminal 21 and extends in the opposite direction to the insertion of the terminal assembly 20. The third locking portion 23 is located on the side of the circuit board 30 near the second locking portion 22.

[0064] Please see Figure 4 , Figure 5 and Figure 14As shown, the fourth cavity 140 has a recessed groove 142 located in the portion of the fourth cavity 140 within the first housing 11. The fourth cavity 140 also has a first locking part 141, which protrudes inward from the fourth cavity 140. Furthermore, the first locking part 141 is located within the groove 142 and protrudes radially inward from the groove 142, with the first locking part 141 located at the end of the groove 142 furthest from the second housing 12. A second locking part 22 corresponds to the position of the first locking part 141 within the fourth cavity 140, and the first locking part 141 engages with the second locking part 22. Specifically, the second locking part 22 is made of the same material as the charging terminal 21 and is integrally formed. The second locking part 22 is an elastic metal sheet. The first locking part 141 extends obliquely from the groove 142 toward the insertion direction of the terminal assembly 20 and the radial inner side, and extends to the groove 142 with the innermost radial point. During the process of inserting the terminal assembly 20 into the fourth cavity 140, the second locking part 22 slides along the groove 142 and slides obliquely at the first locking part 141. After being elastically squeezed, it rebounds and abuts against the end of the first locking part 141 away from the circuit board 30. That is, the second locking part 22 abuts against the first locking part 141 in the opposite direction of the insertion of the terminal assembly 20, so that the terminal assembly 20 is in a locked state. At this time, the terminal assembly 20 is locked in the opposite direction of insertion.

[0065] Please see Figure 3 , Figure 6 , Figure 8 and Figure 9 As shown, the fourth cavity 140 includes an upper cavity 140a located on one side of the circuit board 30 in the second direction, and a lower cavity 140b located on the other side of the circuit board 30 in the second direction, wherein the first locking part 141, the second locking part 22 and the third locking part 23 are located in the lower cavity 140b, and the wiring part 211 and the reinforcing unit 24 are located in the upper cavity 140a.

[0066] In this embodiment, the second locking part 22 of the terminal assembly 20 and the first locking part 141 in the fourth cavity 140 form a first locking structure. The first locking structure is located in the fourth cavity 140 and is suitable for locking the terminal assembly 20 once.

[0067] In this embodiment, the charging dock also includes a fourth locking part, which is at least partially located in the second cavity 120 and the third cavity 130 and is movable in the first direction. The fourth locking part cooperates with the third locking part 23.

[0068] In some embodiments, the fourth locking part includes a circuit board 30, a socket 40 fixed to the circuit board 30, and a push rod 50, which is directly or indirectly fixed to the circuit board 30. Specifically, the circuit board 30, the socket 40, and the push rod 50 are fixed together.

[0069] Please see Figure 22 and Figure 23As shown, the circuit board 30 has a first through-hole 31 that allows the terminal assembly 20 to pass through. Thermally conductive adhesive 33 and a protective sleeve 34 are also mounted on the circuit board 30. The thermally conductive adhesive 33 is adhered to the circuit board 30, and the protective sleeve 34 is fitted around the thermally conductive adhesive 33. The circuit board 30 has a fourth through-hole 35 for mounting the thermally conductive adhesive 33 and a fifth through-hole 36 for mounting the protective sleeve 34. The thermally conductive adhesive 33 is at least partially located in the fourth through-hole 35, and the protective sleeve 34 is at least partially located in the fifth through-hole 36. Further, the thermally conductive adhesive 33 and the protective sleeve 34 are at least partially located on one side of the circuit board 30 and at least partially extend to the other side of the circuit board 30. The thermally conductive adhesive 33 and the protective sleeve 34 are soldered at the fourth through-hole 35 and the fifth through-hole 36 to fix them to the circuit board 30. In other embodiments, the thermally conductive adhesive 33 and the protective sleeve 34 do not extend to the other side of the circuit board 30, and their ends are located in the fourth through-hole 35 and the protective sleeve 36, respectively. Furthermore, the first through hole 31 is located between the upper cavity 140a and the lower cavity 140b and connects the upper cavity 140a and the lower cavity 140b.

[0070] Please see Figure 22 and Figure 23 As shown, the circuit board 30 also has several sixth through holes 37, which are suitable for mounting the circuit board 30 inside the housing 10.

[0071] Please see Figure 8 , Figure 22 and Figure 23 As shown, the circuit board 30, socket 40, and push rod 50 are fixed relative to each other. The socket 40 is fixed to the circuit board 30, and the push rod 50 is fixed to the socket 40. The socket 40 has a second fixing part 42, a slot 41, and a pin header 43. The pin header 43 is vertically disposed in the slot 41 and extends to the other side of the circuit board 30 opposite to the slot 41. The circuit board 30 has a corresponding second through hole 32. The pin header 43 is at least partially located in the second through hole 32, and is soldered at the second through hole 32 to fix the socket 40 to the circuit board 30. In other embodiments, the pin header 43 does not extend to the other side of the circuit board 30, and its end is located in the second through hole 32. The second fixing part 42 protrudes from the side of the socket 40 near the circuit board 30 and extends to the other side of the circuit board 30. The push rod 50 has a corresponding first fixing part 53, which cooperates with the second fixing part 42. The second fixing part 42 is at least partially located in the first fixing part 53, so that the push rod 50 is fixed to the socket 40. The push rod 50 is adapted to move the socket 40 and the circuit board 30 in the housing 10 along the first direction. When the circuit board 30 abuts against the upper surface of the third locking part 23 of the terminal assembly 20, the terminal assembly 20 is in a secondary locking state. At this time, the terminal assembly 20 is locked in the insertion direction.

[0072] In some implementations, please refer to Figure 22 and Figure 23As shown, the push rod 50 has a recessed mating part 55, which makes the outer end of the push rod 50 protrude relatively, making it easier to operate the push rod 50.

[0073] In some implementations, please refer to Figures 16 to 20 As shown, the fifth cavity 150 is provided with a notch 152 at one end that connects to the outside. The notch 152 is designed to cooperate with the mating part 55 to facilitate the operation of the push rod 50 by personnel.

[0074] Specifically, the socket 40 has a first position 401 and a second position 402 in the second cavity 120. When the terminal assembly 20 is inserted and the socket 40 is in the first position 401, the terminal assembly 20 is in a first-locked state; when the terminal assembly 20 is inserted and the socket 40 is in the second position 402, the terminal assembly 20 is in a second-locked state.

[0075] Please see Figure 3 and Figure 8 As shown, when the socket 40 is in the first position 401, the axial projection of the slot 41 does not overlap with the first cavity 110 at least partially, thus preventing the connector 300 from being inserted into the socket 40; when the socket 40 is in the second position 402, the axial projection of the slot 41 is within the outer contour of the first cavity 110, thus allowing the connector 300 to be inserted into the socket 40. In this embodiment, the axial direction is the second direction.

[0076] Please see Figures 15 to 20 As shown, the fifth cavity 150 is provided with a third limiting part 151, and the push rod 50 is provided with a first limiting part 51 and a second limiting part 52. The third limiting part 151 can be adapted to the first limiting part 51 and the second limiting part 52 respectively. When the third limiting part 151 cooperates with the first limiting part 51, the socket 40 is located at the first position 401, and in the first direction, the center line of the slot 41 does not coincide with the center line of the first cavity 110; when the third limiting part 151 cooperates with the second limiting part 52, the socket 40 is located at the second position 402, and in the first direction, the center line of the slot 41 coincides with the center line of the first cavity 110, and the circuit board 30 is at least partially attached to the third locking part 23 in the second direction. In this embodiment, the third limiting part 151 is protruding, and the first limiting part 51 and the second limiting part 52 are grooved. In other embodiments, the third limiting part 151 and the first limiting part 51 and the second limiting part 52 can also use other commonly used structures for cooperation.

[0077] In this embodiment, the fourth locking part and the third locking part 23 of the terminal assembly 20 form a second locking structure, which is suitable for secondary locking of the terminal assembly 20.

[0078] Please see Figures 2 to 6As shown, the terminal assembly 20 is in a locked state. At this time, the terminal assembly 20 is inserted into the fourth cavity 140, and the second locking part 22 abuts against the first locking part 141. The socket 40 is in the first position 401, and the third limiting part 151 cooperates with the first limiting part 51. That is, without pushing the push rod 50, the locking is completed when the terminal assembly 20 is inserted and cannot be pulled out.

[0079] Please see Figures 7 to 10 As shown, the terminal assembly 20 is in a secondary locking state. With the terminal assembly 20 already locked once, pushing the push rod 50 moves the socket 40 and the circuit board 30. The second limiting part 52 moves to the original position of the first limiting part 51, so that the third limiting part 151 engages with the second limiting part 52. At the same time, the socket 40 moves from the first position 401 to the second position 402. At this time, the lower surface of the circuit board 30 abuts against the upper surface of the third locking part 23, and the terminal assembly 20 can no longer move in the insertion direction, thus completing the secondary locking.

[0080] In this embodiment, the primary and secondary locking of the terminal assembly 20 are respectively in opposite directions on the same axis, and the terminal assembly 20 is located in the fourth cavity 140 and cannot move radially, so the terminal assembly 20 is reliably locked.

[0081] Further, please refer to Figures 21 to 23 As shown, the push rod 50 is also provided with a groove 54, and a waterproof ring 61 is fitted around the groove 54, which can play a waterproof role at the push rod 50.

[0082] Please see Figure 25 and Figure 26 As shown, after the terminal assembly 20 completes the secondary locking, the socket 40 is in the second position 402, and the connector 300 can be inserted. The connector 300 is inserted into the first cavity 110 and fixedly connected to the socket 40. In actual operation, whether the connector 300 can be inserted and connected to the socket 40 can be determined by whether the circuit board 30 abuts against the third locking part 23, that is, whether the terminal assembly 20 has completed the secondary locking.

[0083] Please see Figure 25 and Figure 26As shown, the charging dock in this embodiment also includes a clamping member 70, which is fixedly sleeved on the periphery of the housing 10 near the end of the fourth cavity 140 close to the cable 62. The clamping member 70 includes a sixth fixing part 71 and a third through hole 72. The clamping member 70 is fixed to the end of the second housing 12 away from the first housing 11, and the third through hole 72 allows the cable 62 to pass through. The second housing 12 is correspondingly provided with a fifth fixing part 123, and the sixth fixing part 71 cooperates with the fifth fixing part 123, so that the clamping member 70 is fastened to the second housing 12. In other embodiments, the second housing 12 is provided with a snap-hole structure, and the clamping member 70 is provided with a snap-on structure, and the two are also fastened together. Of course, the second housing 12 and the clamping member 70 can also be fixed to each other using other commonly used fixing methods. Further, the clamping member 70 also includes a second extension part 73, which extends from the edge of the clamping member 70 toward the second housing 12 and fits against the outer wall of the second housing 12. The sixth fixing part 71 is located in the second extension part 73.

[0084] Further, please refer to Figure 6 , Figure 9 , Figure 11 and Figure 25 As shown, the connector 300 is inserted from above the second housing 12. A first limiting member 124 is provided in the first cavity 110, and a second limiting member 125 is provided on the outside of the first cavity 110 of the second housing 12. The first limiting member 124 and the second limiting member 125 are used to limit the state of the connector 300 when it is inserted. The connector 300 is provided with a first matching part (not shown in the figure) corresponding to the first limiting member 124, and the connector 300 is provided with a second matching part 301 corresponding to the second limiting member 125. The second matching part 301 is adapted to the second limiting member 125.

[0085] In summary, compared with the prior art, the charging dock of the present invention has the following advantages: Through the primary locking of the first locking part 141 cooperating with the second locking part 22, and the secondary locking of the third locking part 23 cooperating with the fourth locking part, the terminals are radially limited within the fourth cavity 140. The primary and secondary locking respectively limit the terminals in both axial and reverse directions, achieving omnidirectional locking of the terminals and preventing accidental unlocking, thus ensuring the reliability of the terminal locking. This charging dock uses a simple structural fit on existing components to achieve secondary locking of the terminals, replacing the function of existing terminal pressure plates, and eliminating the need for additional parts, thereby reducing costs. The locking and unlocking operations of the terminals are simple, requiring no special tools, and it is easy to determine whether the terminals have completed secondary locking.

[0086] The above embodiments are only used to illustrate the present invention and are not intended to limit the technical solutions described in the present invention. The understanding of this specification should be based on those skilled in the art. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that they can still make modifications or equivalent substitutions to the present invention. All technical solutions and improvements that do not depart from the spirit and scope of the present invention should be covered within the scope of the claims of the present invention.

Claims

1. A charging stand, comprising a housing (10) and a cable (62), characterized in that, The housing (10) includes: The first cavity (110) is connected to the outside; The second cavity (120) is connected to the first cavity (110), and the width of the second cavity (120) in the first direction is greater than the width of the first cavity (110) in the first direction; The third cavity (130) is connected to the second cavity (120); The fourth cavity (140) is connected to the third cavity (130) and extends along a second direction, which is perpendicular to the first direction. The fourth cavity (140) is provided with a first locking part (141). The fifth cavity (150) is connected to the third cavity (130) and to the outside. The fifth cavity (150) is provided with a third limiting part (151). The charging dock also includes: Terminal assembly (20) is located in the fourth cavity (140) and connected to the cable (62). The terminal assembly (20) includes a charging terminal (21), a second locking part (22) and a third locking part (23). The third locking part (23) is fixed to the charging terminal (21), and the second locking part (22) cooperates with the first locking part (141). The fourth locking part is at least partially located in the second cavity (120) and the third cavity (130), the fourth locking part is movable in the first direction, and the fourth locking part cooperates with the third locking part (23); The fourth locking part includes a circuit board (30), a socket (40) fixed on the circuit board (30), and a push rod (50) fixed on the circuit board (30). The circuit board (30) is located in the third cavity (130), the socket (40) is located in the second cavity (120), the socket (40) has a slot (41), and the push rod (50) is at least partially located in the fifth cavity (150). The push rod (50) includes a first limiting part (51) and a second limiting part (52). The third limiting part (151) can be adapted to the first limiting part (51) and the second limiting part (52) respectively. When the centerline of the slot (41) in the first direction coincides with the centerline of the first cavity (110), the circuit board (30) is at least partially attached to the third locking part (23) in the second direction.

2. The charging dock according to claim 1, characterized in that: The circuit board (30) has a second through hole (32), and the socket (40) is at least partially located in the second through hole (32).

3. The charging dock according to claim 2, characterized in that: The fourth cavity (140) includes an upper cavity (140a) located on one side of the circuit board (30) in the second direction, and a lower cavity (140b) located on the other side of the circuit board (30) in the second direction, wherein the first locking part (141), the second locking part (22) and the third locking part (23) are located in the lower cavity (140b). The circuit board (30) has a first through hole (31) located between the upper cavity (140a) and the lower cavity (140b) and connecting the upper cavity (140a) and the lower cavity (140b).

4. The charging dock according to claim 2, characterized in that: When the third limiting part (151) cooperates with the first limiting part (51), in the first direction, the center line of the slot (41) does not coincide with the center line of the first cavity (110); When the third limiting part (151) engages with the second limiting part (52), in the first direction, the center line of the slot (41) coincides with the center line of the first cavity (110), and the circuit board (30) is at least partially attached to the third locking part (23) in the second direction.

5. The charging dock according to claim 2, characterized in that: The push rod (50) includes a first fixing part (53), and the socket (40) includes a second fixing part (42), which cooperates with the first fixing part (53).

6. The charging dock according to claim 1, characterized in that: The housing (10) includes a first housing (11) and a second housing (12). The first housing (11) includes a third fixing part (111), and the second housing (12) includes a fourth fixing part (121). The fourth fixing part (121) cooperates with the third fixing part (111).

7. The charging dock according to claim 6, characterized in that: The second housing (12) further includes a first extension (122) which extends from the edge of the second housing (12) toward the first housing (11) and fits against the outer wall of the first housing (11), and the fourth fixing part (121) is located in the first extension (122).

8. The charging dock according to claim 1, characterized in that: The fourth cavity (140) is also provided with a groove (142), and the first locking part (141) is located in the groove (142).

9. The charging dock according to claim 1, characterized in that: It also includes a clamp (70) fixed to the housing (10), the housing (10) including a fifth fixing part (123), the clamp (70) including a sixth fixing part (71), the sixth fixing part (71) cooperating with the fifth fixing part (123); The clamp (70) is provided with a third through hole (72), through which the cable (62) passes.

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