Charging adapter

By designing a charging adapter, utilizing an upper housing, a lower housing, metal clip assemblies, and metal insert assemblies, multiple battery packs can be charged simultaneously, solving the problem that existing chargers cannot charge at the same time, improving charging efficiency and reducing economic and resource costs.

CN223514377UActive Publication Date: 2025-11-04SHANGHAI BAICHENG ELECTRONICS
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Patent Information

Application Number
CN202422690940.X
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-11-05
Publication Date
2025-11-04
Estimated Expiration
2034-11-05

AI Technical Summary

Technical Problem

Most existing chargers are 1-to-1 chargers, which cannot charge multiple battery packs at the same time. This forces users to purchase multiple chargers, increasing their financial burden and resource consumption. In addition, 1-to-2 chargers are expensive, which limits the promotion and use of the products.

Method used

Design a charging adapter comprising an upper housing, a lower housing, a metal clip assembly, and a metal insert assembly. It enables simultaneous charging of multiple battery packs through one input cavity and multiple output cavities, and uses a circuit board for power distribution.

Benefits of technology

It improves the charging efficiency of multiple battery packs, reduces interference from plugging and unplugging the charger and battery packs, and lowers economic costs and resource consumption.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of charging, and provides a charging adapter which comprises an upper shell, a lower shell, a metal clamping piece assembly, a metal inserting piece assembly and a circuit board. Wherein the upper shell is provided with an input cavity and a plurality of output cavities, and the input cavity and the output cavities are arranged in sequence; the lower shell is fixed with the upper shell and is used for sealing the input cavity and the output cavity; the metal clamping piece assembly is installed in the input cavity to form a charging female connector, and the charging female connector is used for being connected with a charging male connector of a charger in an inserted mode. The plurality of metal insert assemblies are relatively independent and are mounted in the output cavity in a one-to-one correspondence manner to form a discharge male connector, and the discharge male connector is used for being in plug-in connection with a discharge female connector of a battery pack; the metal clamping piece assembly and the metal inserting piece assembly are electrically connected with the circuit board. Therefore, the charger can simultaneously charge one or more battery packs through the charging adapter, and the charging efficiency of the battery packs is improved.
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Description

Technical Field

[0001] This utility model relates to the field of charging technology, and in particular to a charging adapter. Background Technology

[0002] Most chargers for lithium-ion battery packs on the market currently use a one-to-one charging method, meaning one charger charges one battery pack. However, after a pack is fully charged, it needs to be manually switched to another before the charger can charge the next pack, and so on. This design works fine when battery packs are used infrequently. But it becomes inconvenient when battery packs are used frequently, as users cannot charge multiple packs simultaneously. This forces users to purchase multiple chargers, resulting in financial losses and limiting their widespread adoption due to the need for wall outlets and other resources.

[0003] In light of the aforementioned user pain points, some manufacturers have developed 1-to-2 chargers, meaning one charger can charge two battery packs simultaneously. This has helped solve the difficulties for some users, but it has also led to the problem of high charger prices. This is because the solution involves setting up two separate charging systems within one charger, and the price of such a charger is basically twice that of a 1-to-1 charger. Many users simply cannot accept such a high price, which limits the promotion and use of this type of product.

[0004] Therefore, there is an urgent need for a charging adapter to solve the above-mentioned technical problems. Utility Model Content

[0005] The purpose of this invention is to provide a charging adapter that can charge multiple battery packs simultaneously using existing chargers, thereby improving the charging efficiency when multiple battery packs need to be charged.

[0006] To achieve this objective, the present invention adopts the following technical solution:

[0007] Charging adapter, including:

[0008] The upper housing is provided with an input cavity and multiple output cavities, the input cavity and the output cavities being arranged sequentially.

[0009] The lower housing is fixed to the upper housing and is used to seal the input cavity and the output cavity.

[0010] A metal clip assembly is installed in the input cavity to form a female charging connector, which is used to connect with the male charging connector of the charger.

[0011] The metal insert assembly is provided in multiple relatively independent manner and is installed in the output cavity to form a discharge male connector, which is used to connect with the discharge female connector of the battery pack.

[0012] The circuit board, the aforementioned metal clip assembly and the aforementioned metal insert assembly are respectively electrically connected to the aforementioned circuit board.

[0013] As a preferred technical solution of the above-mentioned charging adapter, one sidewall of the input cavity forms a first support platform on the side of the upper housing opposite to the lower housing. The first support platform has a plug hole, and first limiting edges are respectively provided on both sides of the first support platform. A first guide groove is formed between the two first limiting edges, and the charging male connector of the charger is inserted into the plug hole along the first guide groove.

[0014] As a preferred technical solution of the above-mentioned charging adapter, the metal clip assembly includes a clip base and clips. The clip base is fixed relative to the upper housing. The clips are inserted into the clip base. Multiple clips are provided, each corresponding to a plug hole. The charging male connector can pass through the plug hole and be inserted into the clip.

[0015] As a preferred technical solution of the above-mentioned charging adapter, one side wall of the output cavity forms a second support platform on the side of the upper housing opposite to the lower housing. The discharge male connector is formed on the second support platform, and second limiting stops are formed on both sides of the second support platform. A second guide groove is formed between the two second limiting stops, and the discharge female connector of the battery pack can be inserted into the discharge male connector along the second guide groove.

[0016] As a preferred embodiment of the above-mentioned charging adapter, the plurality of output cavities are arranged sequentially along the second direction, and the plurality of second guide grooves are arranged in parallel, wherein the guiding direction of the second guide grooves is perpendicular to the second direction.

[0017] As a preferred technical solution of the above-mentioned charging adapter, the metal insert assembly includes an insert base and inserts. The insert base is fixed relative to the upper housing. One end of the insert is inserted into the insert base, and the other end extends through the second support platform and out of the output cavity to form the discharge male connector.

[0018] As a preferred embodiment of the above-mentioned charging adapter, the circuit board is located between the lower housing and the upper housing, and is fixedly connected to the lower housing and / or the upper housing.

[0019] As a preferred technical solution of the above-mentioned charging adapter, a first positioning post is provided on the side of the upper housing facing the lower housing, and the circuit board abuts against the first positioning post and is fixedly connected to the upper housing.

[0020] As a preferred technical solution of the above-mentioned charging adapter, the upper housing is provided with a second positioning post, the lower housing is provided with a positioning sleeve, the second positioning post is inserted into the positioning sleeve, and the threaded fastener passes through the positioning sleeve and is threadedly connected to the second positioning post.

[0021] As a preferred embodiment of the above-mentioned charging adapter, the metal clip assembly and the metal insert assembly are mounted on the above-mentioned circuit board.

[0022] The beneficial effects of this utility model are:

[0023] This utility model provides a charging adapter, including an upper housing, a lower housing, a metal clip assembly, a metal insert assembly, and a circuit board. The upper housing has one input cavity and multiple output cavities, arranged sequentially. The lower housing is fixed to the upper housing to enclose the input and output cavities. The metal clip assembly is installed in the input cavity to form a female charging connector, which is used to connect to the male charging connector of a charger. Multiple relatively independent metal insert assemblies are installed in the output cavities to form male discharging connectors, which are used to connect to the female discharging connector of a battery pack. The metal clip assembly and the metal insert assembly are electrically connected to the circuit board. The upper and lower housings are fastened together to form an accommodating space, which is further divided into an input cavity and an output cavity arranged sequentially. The input cavity and the output cavity are relatively independent. The input cavity is used to install the metal clip assembly, and the male charging connector of the charger can be plugged into the female charging connector formed by the metal clip assembly. There are multiple output cavities, and each output cavity is equipped with a metal insert assembly. Each metal insert assembly is electrically connected to at most one battery pack. Both the metal clip assembly and the metal insert assembly are electrically connected to the circuit board.

[0024] One end of the charger connects to the power source, and the other end connects to the metal clip assembly. Electrical energy from the power source is sequentially transferred to the circuit board via the charger and the metal clip assembly. When one or more battery packs are inserted into their corresponding metal clip assemblies, electrical energy from the circuit board is transferred to the battery packs through the metal clip assemblies, charging each battery pack individually. This improves the charging efficiency of multiple battery packs. Attached Figure Description

[0025] To more clearly illustrate the technical solutions in 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 the content of the embodiments of this utility model and these drawings without creative effort.

[0026] Figure 1 This is a schematic diagram of the structure of the charging adapter provided in this embodiment of the utility model;

[0027] Figure 2 yes Figure 1 A magnified view of a section at point A in the middle;

[0028] Figure 3 yes Figure 1 A magnified view of a section at point B in the middle;

[0029] Figure 4 This is a schematic diagram of the internal structure of the charging adapter provided in this embodiment of the utility model;

[0030] Figure 5 This is a schematic diagram of the internal structure of the charging adapter (excluding the circuit board) provided in this embodiment of the utility model;

[0031] Figure 6 yes Figure 5 A magnified view of a section at point C;

[0032] Figure 7 This is a schematic diagram of the structure of the metal clip assembly provided in this embodiment of the utility model;

[0033] Figure 8 This is a schematic diagram of the structure of the metal insert assembly provided in this embodiment of the utility model;

[0034] Figure 9 This is a schematic diagram of the structure of the lower shell provided in an embodiment of the present utility model;

[0035] Figure 10 This is a schematic diagram of the structure of the second heat dissipation hole provided in an embodiment of the present invention;

[0036] Figure 11 This is a schematic diagram of the positioning sleeve provided in an embodiment of the present utility model.

[0037] In the picture:

[0038] X, first direction; Y, second direction;

[0039] 10. Upper housing; 11. Input cavity; 12. Output cavity; 13. First support platform; 131. Insertion hole; 14. First limiting stop; 141. First guide groove; 142. First heat dissipation hole; 15. Second support platform; 151. Second limiting stop; 152. Second guide groove; 161. First positioning post; 162. Second positioning post; 17. Support boss; 171. Support surface; 172. Limiting surface;

[0040] 20. Lower housing; 21. Positioning sleeve; 23. Second heat dissipation hole; 24. Crossbeam; 25. Longitudinal beam; 26. Dustproof plate;

[0041] 30. Metal clip assembly; 31. Clip holder; 32. Clip;

[0042] 40. Metal insert assembly; 41. Insert holder; 42. Insert;

[0043] 50. Circuit board. Detailed Implementation

[0044] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, not the entire structure.

[0045] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; 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; they can refer to the internal communication of two components or the interaction between 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.

[0046] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0047] In the description of this embodiment, the terms "upper," "lower," "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, 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. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.

[0048] like Figures 1 to 11 As shown, this utility model provides a charging adapter, including an upper housing 10, a lower housing 20, a metal clip assembly 30, a metal insert assembly 40, and a circuit board 50. The upper housing 10 has one input cavity 11 and multiple output cavities 12, arranged sequentially. The lower housing 20 is fixed to the upper housing 10 to enclose the input cavity 11 and output cavities 12. The metal clip assembly 30 is installed in the input cavity 11 to form a female charging connector, which is used to connect to the male charging connector of a charger. Multiple metal insert assemblies 40 are arranged independently and correspondingly installed in the output cavities 12 to form male discharging connectors, which are used to connect to the female discharging connector of a battery pack. The metal clip assembly 30 and the metal insert assembly 40 are electrically connected to the circuit board 50.

[0049] For example, the upper housing 10 and the lower housing 20 are fastened together to form an accommodating space, which is further divided into an input cavity 11 and an output cavity 12 arranged sequentially. The input cavity 11 and the output cavity 12 are relatively independent. The input cavity 11 is used to install the metal clip assembly 30, and the charging male connector of the charger can be plugged into the charging female connector formed by the metal clip assembly 30. Multiple output cavities 12 are provided, and each output cavity 12 is equipped with a metal insert assembly 40. Each metal insert assembly 40 is electrically connected to at most one battery pack. The metal clip assembly 30 and the metal insert assembly 40 are electrically connected to the circuit board 50 respectively.

[0050] One end of the charger is connected to the power source, and the other end is connected to the metal clip assembly 30. Electrical energy from the power source is sequentially transferred to the circuit board 50 via the charger and the metal clip assembly 30. When one or more battery packs are inserted into their corresponding metal clip assemblies 40, electrical energy from the circuit board 50 is transferred to the battery packs via the metal clip assemblies 40, charging each battery pack individually. This improves the charging efficiency of multiple battery packs.

[0051] Preferably, the input cavity 11 and the output cavity 12 are spaced apart, thereby reducing interference between the charger and the battery pack when plugging and unplugging the charging adapter.

[0052] Optionally, one sidewall of the input cavity 11 forms a first support platform 13 on the side of the upper housing 10 facing away from the lower housing 20. The first support platform 13 has a plug hole 131. First limiting edges 14 are respectively provided on both sides of the first support platform 13. A first guide groove 141 is formed between the two first limiting edges 14. The charging male connector of the charger is inserted into the plug hole 131 along the first guide groove 141.

[0053] Thus, after the charger is connected to the charging female connector, the charger can be placed on the first support platform 13, meaning the first support platform 13 can support the charger from below, and the first support platform 13 can at least share part of the charger's weight. The two first limiting edges 14 act as guides, allowing the charger to quickly align with the charging female connector.

[0054] Optionally, a first heat dissipation hole 142 is provided on the side of the first limiting stop 14 facing away from the first guide groove 141. The first heat dissipation hole 142 connects the indoor and outdoor environments of the output cavity 12. In this way, the indoor environment of the output cavity 12 can exchange heat with the outdoor environment through the first heat dissipation hole 142, thereby regulating the indoor temperature of the output cavity 12.

[0055] Optionally, the metal clip assembly 30 includes a clip base 31 and clips 32. The clip base 31 is fixed relative to the upper housing 10. The clips 32 are inserted into the clip base 31. Multiple clips 32 are provided, each corresponding to a plug hole 131. The charging male connector can pass through the plug hole 131 and be plugged into the clip 32.

[0056] For example, in this embodiment, the clip holder 31 is connected to the upper housing 10 by threaded fasteners. The insert holder 41 is provided with multiple slots, and the clip 32 is inserted into the slots. The clip 32 is U-shaped and includes two spring pieces, which always tend to be close to each other. The charging male connector passes through the insertion hole 131 and is clamped by the two spring pieces of the clip 32 corresponding to the insertion hole 131. The clip 32 is electrically connected to the circuit board 50 through the input connection line. In this way, the charger transmits electrical energy to the circuit board 50 through the clip 32 and the input connection line.

[0057] Preferably, the upper housing 10 has a third positioning post protruding from the lower housing 20. The threaded fastener passes through the clamp seat 31 and is inserted into the third positioning post and threadedly connected to the third positioning post. The clamp seat 31 is clamped between the nut of the threaded fastener and the third positioning post. The screw of the threaded fastener is located inside the third positioning post and is not exposed outside the end face of the upper housing 10, thus maintaining the aesthetics of the upper housing 10.

[0058] Preferably, the clip 32 is welded to the input connection line.

[0059] Optionally, a second support platform 15 is formed on one side wall of the output cavity 12 on the side of the upper housing 10 facing away from the lower housing 20. A discharge male connector is formed on the second support platform 15, and second limiting edges 151 are formed on both sides of the second support platform 15. A second guide groove 152 is formed between the two second limiting edges 151, and the discharge female connector of the battery pack can be inserted into the discharge male connector along the second guide groove 152.

[0060] For example, after the battery pack is plugged into the discharge male connector, the battery pack can be placed on the second support platform 15, that is, the second support platform 15 can support the battery pack and can at least share part of the weight of the battery pack. The two second limiting edges 151 act as guides, so that the battery pack can be quickly aligned with the discharge male connector.

[0061] Optionally, multiple output cavities 12 are arranged sequentially along the second direction Y, and multiple second guide grooves 152 are arranged in parallel, with the guiding direction of the second guide grooves 152 perpendicular to the second direction Y. This arrangement can prevent interference between adjacent battery packs during insertion and removal.

[0062] In other embodiments, a plurality of output cavities 12 are arranged in a ring around the center, the guiding direction of the second guide groove 152 is parallel to the radial direction of the ring, and the opening of the second guide groove 152 is formed on the side opposite to the center.

[0063] Preferably, the input cavity 11 and the output cavity 12 are arranged sequentially along the second direction Y, and the guiding direction of the first guide groove 141 and the guiding direction of the second guide groove 152 are both perpendicular to the second direction Y.

[0064] It should be noted that, in this embodiment, the second direction Y is the length direction of the upper shell 10 and is perpendicular to the thickness direction of the upper shell 10, that is, the fastening direction of the upper shell 10 and the lower shell 20.

[0065] Optionally, the metal insert assembly 40 includes an insert base 41 and an insert 42. The insert base 41 is fixed relative to the upper housing 10. One end of the insert 42 is inserted into the insert base 41, and the other end passes through the second support platform 15 and extends out of the output cavity 12 to form a discharge male connector.

[0066] For example, the insert holder 41 is connected to the upper housing 10 by a threaded fastener, and the insert 42 is inserted into one end of the insert holder 41 and electrically connected to the circuit board 50 via an output connection line. In this way, the electrical energy of the circuit board 50 can be conducted to the battery pack through the output connection line and the insert 42.

[0067] Preferably, the insert 42 is connected to the output connection line by soldering.

[0068] Optionally, the circuit board 50 is located between the lower housing 20 and the upper housing 10, and is fixedly connected to the lower housing 20 and / or the upper housing 10.

[0069] Optionally, the upper housing 10 is provided with a first positioning post 161 on the side facing the lower housing 20, and the circuit board 50 abuts against the first positioning post 161 and is fixedly connected to the upper housing 10.

[0070] For example, the circuit board 50 has a mounting hole, and the first positioning post 161 has a threaded hole. The threaded fastener passes through the mounting hole and is inserted into the threaded hole to be threadedly connected to the first positioning post 161. The circuit board 50 is sandwiched between the nut of the threaded fastener and the first positioning post 161. The first positioning post 161 makes the end face of the circuit board 50 and the upper housing 10 spaced apart, which facilitates heat dissipation of the circuit board 50 and wiring.

[0071] Optionally, a support boss 17 is also provided on the side end face of the upper housing 10 facing the lower housing 20. At least two support bosses 17 are provided, and the at least two support bosses 17 are arranged diagonally. The support boss 17 includes a support surface 171 and a limiting surface 172. The limiting surface 172 is perpendicular to the support surface 171 and perpendicular to one side wall of the upper housing 10. The circuit board 50 is placed on the support boss 17, and the front end face of the circuit board 50 is in contact with the support surface 171. The circuit board 50 is placed in the rectangular space enclosed by the limiting surface 172 and the side wall of the upper housing 10. At this time, the first positioning post 161 of the mounting hole of the circuit board 50 is directly opposite.

[0072] In this embodiment, four support bosses 17 are provided, arranged in a rectangular pattern, and located at the top corner of the rectangle.

[0073] Optionally, the upper housing 10 is provided with a second positioning post 162, and the lower housing 20 is provided with a positioning sleeve 21. The second positioning post 162 is inserted into the positioning sleeve 21, and the threaded fastener passes through the positioning sleeve 21 and is threadedly connected to the second positioning post 162.

[0074] Furthermore, the nuts of the threaded fasteners are all located inside the countersunk holes, thus making the end face of the lower housing 20 flat.

[0075] Preferably, the threaded hole on the second positioning post 162 is a blind hole, that is, the screw of the threaded fastener is always located inside the threaded hole and will not be exposed on the side of the upper housing 10 opposite to the lower housing 20, thereby maintaining the overall aesthetics of the upper housing 10.

[0076] Preferably, at least two second positioning posts 162 are provided, and at least two of the second positioning posts 162 are arranged diagonally, with the positioning sleeve 21 corresponding to each of the second positioning posts 162.

[0077] Preferably, reinforcing ribs are provided at the connection between the first positioning post 161 and / or the second positioning post 162 and the end face of the upper housing 10.

[0078] Optionally, the lower housing 20 is provided with a second heat dissipation hole 23, which is arranged in a matrix.

[0079] For example, in this embodiment, the end face of the lower housing 20 is provided with an opening, and a crossbeam 24 and a longitudinal beam 25 are provided at the opening. The crossbeam 24 and the longitudinal beam 25 are arranged in a grid pattern to form a plurality of second heat dissipation holes 23.

[0080] Furthermore, a dustproof plate 26 is provided on the side of the lower housing 20 facing the upper housing 10. The dustproof plate 26 is connected to one of the crossbeams 24 and the longitudinal beams 25, and is spaced apart from the other, so that the flow channel of the second heat dissipation hole 23 is L-shaped. In this way, the dustproof plate 26 intercepts some of the dust from the outdoor environment, preventing the circuit board 50 from accumulating too much dust and causing it to short-circuit.

[0081] Furthermore, projected onto the first direction X, the second heat dissipation holes 23 form a matrix that at least partially overlaps with the circuit board 50. The first direction X is the direction in which the upper housing 10 and the lower housing 20 are fastened together.

[0082] Optionally, the metal clip assembly 30 and the metal insert assembly 40 are mounted on the circuit board 50.

[0083] Furthermore, the above description is merely a preferred embodiment of the present invention and the technical principles employed. Those skilled in the art will understand that the present invention is not limited to the specific embodiments described herein, and various obvious changes, readjustments, and substitutions can be made without departing from the scope of protection of the present invention. Therefore, although the present invention has been described in detail through the above embodiments, the present invention is not limited to the above embodiments. Many other equivalent embodiments may be included without departing from the concept of the present invention, and the scope of the present invention is determined by the scope of the appended claims.

Claims

1. A charging adapter, characterized in that, include: The upper housing (10) is provided with an input cavity (11) and a plurality of output cavities (12), the input cavity (11) and the output cavities (12) being arranged sequentially; The lower housing (20) is fixed to the upper housing (10) and is used to seal the input cavity (11) and the output cavity (12); A metal clip assembly (30) is installed in the input cavity (11) to form a female charging connector, which is used to connect with the male charging connector of the charger. Metal insert assembly (40), wherein multiple metal insert assemblies (40) are provided and are independent of each other and are installed in the output cavity (12) in a one-to-one correspondence to form a discharge male connector, wherein the discharge male connector is used to be inserted into the discharge female connector of the battery pack; The circuit board (50) is electrically connected to the circuit board (50), the metal clip assembly (30) and the metal insert assembly (40).

2. The charging adapter according to claim 1, characterized in that, One sidewall of the input cavity (11) forms a first support platform (13) on the side of the upper housing (10) opposite to the lower housing (20). The first support platform (13) has a plug hole (131). First limiting edges (14) are respectively provided on both sides of the first support platform (13). A first guide groove (141) is formed between the two first limiting edges (14). The charging male connector of the charger is inserted into the plug hole (131) along the first guide groove (141).

3. The charging adapter according to claim 2, characterized in that, The metal clip assembly (30) includes a clip seat (31) and clips (32). The clip seat (31) is fixed relative to the upper housing (10). The clips (32) are inserted into the clip seat (31). Multiple clips (32) are provided, each corresponding to a plug hole (131). The charging male connector can pass through the plug hole (131) and be inserted into the clip (32).

4. The charging adapter according to claim 1, characterized in that, One sidewall of the output cavity (12) forms a second support platform (15) on the side of the upper housing (10) opposite to the lower housing (20). The discharge male connector is formed on the second support platform (15), and second limiting edges (151) are formed on both sides of the second support platform (15). A second guide groove (152) is formed between the two second limiting edges (151). The discharge female connector of the battery pack can be inserted into the discharge male connector along the second guide groove (152).

5. The charging adapter according to claim 4, characterized in that, The multiple output cavities (12) are arranged sequentially along the second direction (Y), and the multiple second guide grooves (152) are arranged in parallel, with the guiding direction of the second guide grooves (152) being perpendicular to the second direction (Y).

6. The charging adapter according to claim 4, characterized in that, The metal insert assembly (40) includes an insert base (41) and an insert (42). The insert base (41) is fixed relative to the upper housing (10). One end of the insert (42) is inserted into the insert base (41), and the other end passes through the second support platform (15) and extends out of the output cavity (12) to form the discharge male connector.

7. The charging adapter according to claim 1, characterized in that, The circuit board (50) is located between the lower housing (20) and the upper housing (10), and is fixedly connected to the lower housing (20) and / or the upper housing (10).

8. The charging adapter according to claim 7, characterized in that, The upper housing (10) is provided with a first positioning post (161) on the side facing the lower housing (20), and the circuit board (50) abuts against the first positioning post (161) and is fixedly connected to the upper housing (10).

9. The charging adapter according to claim 7, characterized in that, The upper housing (10) is provided with a second positioning post (162), and the lower housing (20) is provided with a positioning sleeve (21). The second positioning post (162) is inserted into the positioning sleeve (21), and the threaded fastener passes through the positioning sleeve (21) and is threadedly connected to the second positioning post (162).

10. The charging adapter according to claim 1, characterized in that, The metal clip assembly (30) and the metal insert assembly (40) are mounted on the circuit board (50).