Charging head and charger

Abstract

The utility model provides a charging head and a charger, and belongs to the technical field of charging devices. In the charging head, a shell assembly is provided with a first wall surface, and the first wall surface is provided with at least one mounting hole; the first circuit board is fixed in the shell assembly; the second circuit board is located in the shell assembly and connected with the first circuit board, the second circuit board is opposite to the first wall face, the second circuit board comprises at least one US connector, one end of each US connector is fixed to the plate face, close to the first wall face, of the second circuit board, and the other end of each US connector is located in one mounting hole; the bolt assembly is fixed outside the shell assembly and is electrically connected with the first circuit board; the limiting piece is fixed in the shell assembly and used for limiting the second circuit board to move in the direction away from the first wall face. By adopting the charging head, displacement of the USB connector relative to the mounting hole can be avoided, so that the situation that the connecting line and the USB connector cannot be plugged is avoided, and the service life of the charging head is prolonged.

Description

Technical Field

[0001] The present disclosure relates to the technical field of charging devices, and particularly relates to a charging head and a charger. Background Art

[0002] Nowadays, with the increasing variety of electronic devices, the variety of chargers used in conjunction with electronic devices has also increased. In order to improve the convenience of charging different electronic devices, a charging head with multiple USB connectors has emerged.

[0003] Currently, a charging head with multiple USB (Universal Serial Bus) connectors generally includes a housing assembly, a plug assembly, a first circuit board, and a second circuit board. A plurality of mounting holes are provided on one wall surface of the housing assembly. The plug assembly is fixed outside the housing assembly. The first circuit board and the second circuit board are both located inside the housing assembly. The first circuit board is parallel to the axis of the mounting hole and is respectively connected to the housing assembly and the plug assembly. The second circuit board is perpendicular to the axis of the mounting hole and is connected to the first circuit board. A plurality of USB connectors are provided on the side surface of the second circuit board close to the mounting hole, and each USB connector is correspondingly located in one mounting hole.

[0004] However, in the above structure, the second circuit board is perpendicular to the axis direction of the mounting hole (i.e., the plugging and unplugging direction of the connection line) and is only connected to the first circuit board, which makes the connection stability of the second circuit board poor. As the connection line is frequently inserted into the USB connector, the second circuit board may be displaced away from the mounting hole under the action of thrust, resulting in the USB connector being disengaged from the mounting hole and the connection line being unable to be plugged into the USB connector, seriously affecting the service life of the charging head. Summary of the Utility Model

[0005] The present disclosure provides a charging head and a charger, which can solve the technical problems existing in the related art. The technical solutions are as follows:

[0006] In a first aspect, the present disclosure provides a charging head, which includes a housing assembly, a first circuit board, a second circuit board, a plug assembly, and a limiting member;

[0007] The housing assembly has a first wall surface, and the first wall surface has at least one mounting hole;

[0008] The first circuit board is fixed inside the housing assembly;

[0009] The second circuit board is located within the housing assembly and is connected to the first circuit board. The second circuit board faces the first wall surface. The second circuit board includes at least one US connector. One end of each US connector is fixed to the surface of the second circuit board close to the first wall surface, and the other end is located within a mounting hole.

[0010] The pin assembly is fixed outside the housing assembly and is electrically connected to the first circuit board.

[0011] The limiting member is fixed within the housing assembly and is used to limit the movement of the second circuit board in a direction away from the first wall surface.

[0012] In a possible implementation manner, the housing assembly has a second wall surface, and the second wall surface faces the first wall surface.

[0013] The limiting member is located between the second circuit board and the second wall surface, and two ends of the limiting member are respectively connected to the second wall surface and the second circuit board.

[0014] In a possible implementation manner, the limiting member includes a support portion and an abutting portion.

[0015] One end of the support portion is connected to the second wall surface.

[0016] The abutting portion extends in a direction parallel to the second circuit board. The abutting portion is connected to the other end of the support portion and abuts against the surface of the second circuit board close to the second wall surface.

[0017] In a possible implementation manner, the first circuit board includes a first board body and a transformer. The transformer is connected to the first board body, and the transformer is located within the space formed by the first board body, the support portion, the second circuit board, and the second wall surface.

[0018] The limiting member is located on a side of the transformer away from the first board body and is connected to the transformer through thermal conductive silicone.

[0019] In a possible implementation manner, the limiting member further includes at least one bending portion.

[0020] The bending portion extends along the support portion towards the first board body and faces at least one side surface of the transformer.

[0021] In a possible implementation manner, one end of the bending portion away from the support portion is connected to the first board body.

[0022] In a possible implementation manner, there is a gap (00) between the bending portion and the transformer.

[0023] In a possible implementation, the limiting member is a metal sheet;

[0024] The charger head further includes an insulating member, which is located between the limiting member and the second circuit board and is connected to the limiting member and the second circuit board respectively.

[0025] In a possible implementation, the housing assembly has a third wall surface, which is the wall surface adjacent to the first wall surface in the housing assembly;

[0026] The limiting member is located on the side of the second circuit board away from the first wall surface and is connected to the third wall surface.

[0027] In a possible implementation, the first wall surface has at least one first mounting hole and at least one second mounting hole. The shape and size of the first mounting hole are respectively adapted to a type-US connector, and the shape and size of the second mounting hole are respectively adapted to a type-US connector;

[0028] The second circuit board includes at least one type-US connector and at least one type-US connector. One end of each type-US connector is fixed on the surface of the second circuit board close to the first wall surface, and the other end is fixed in a first mounting hole. One end of each type-US connector is fixed on the surface of the second circuit board close to the first wall surface, and the other end is fixed in a second mounting hole.

[0029] In a possible implementation, the first wall surface has two first mounting holes and two second mounting holes, and the two first mounting holes and the two second mounting holes are arranged in a matrix.

[0030] In a second aspect, the present disclosure provides a charger, which includes the charger head in the first aspect and its possible implementations and a connecting wire adapted to the charger head.

[0031] The technical solution provided by the present disclosure has at least the following beneficial effects:

[0032] The present disclosure provides a charger head, which includes a housing assembly and a limiting member. The housing assembly has a mounting hole for accommodating a USB connector. The limiting member is fixed in the housing assembly and is used to limit the movement of a second charger with a USB connector away from the mounting hole, so as to avoid the USB connector from disengaging from the mounting hole, ensure that the USB connector is still located in the mounting hole after frequent plugging and unplugging of the connecting wire, and further improve the service life of the charger head.

[0033] It should be understood that the above general description and the following detailed description are only exemplary and explanatory, and cannot limit the present disclosure. Description of the Drawings

[0034] The accompanying drawings herein are incorporated into and constitute a part of this specification, showing embodiments in accordance with the present disclosure, and are used together with the specification to explain the principles of the present disclosure. In the drawings:

[0035] Figure 1 is a schematic structural diagram of a charger head provided by an embodiment of the present disclosure;

[0036] Figure 2 is an exploded view of a charger head provided by an embodiment of the present disclosure;

[0037] Figure 3 is a schematic structural diagram of a first circuit board, a second circuit board, and a limiting member provided by an embodiment of the present disclosure;

[0038] Figure 4 is a schematic structural diagram of a limiting member provided by an embodiment of the present disclosure;

[0039] Figure 5 is a schematic structural diagram of a second circuit board and a limiting member provided by an embodiment of the present disclosure;

[0040] Figure 6 is a schematic structural diagram of a second circuit board and a limiting member provided by an embodiment of the present disclosure;

[0041] Figure 7 is an exploded view of a charger head provided by an embodiment of the present disclosure;

[0042] Figure 8 is a schematic semi-sectional view of a charger head provided by an embodiment of the present disclosure;

[0043] Figure 9 is a schematic structural diagram of a charger head provided by an embodiment of the present disclosure.

[0044] Legend Explanation

[0045] 1. Housing assembly;

[0046] 1a. First wall surface; 1b. Second wall surface; 1c. Third wall surface;

[0047] 11. Housing; 12. Bottom plate;

[0048] 101. Accommodation cavity; 102. Mounting hole; 103. Chute; 121. Protrusion structure; 122. Third mounting hole;

[0049] 1021. First mounting hole; 1022. Second mounting hole;

[0050] 2. First circuit board;

[0051] 21. First plate body; 22. Transformer; 100. Gap; 201. First jack; 202. Second jack;

[0052] 3. Second circuit board;

[0053] 31. Second plate body; 32. USB connector;

[0054] 301. Insertion protrusion; 321. C-type USB connector; 322. A-type USB connector;

[0055] 4. Plug component;

[0056] 41. Plug; 42. First elastic piece; 43. Second elastic piece;

[0057] 5. Limiting member;

[0058] 501. Support portion; 502. Bending portion; 503. Abutting portion;

[0059] 6. Insulating member.

[0060] Through the above-mentioned drawings, specific embodiments of the present disclosure have been shown, and there will be more detailed descriptions hereinafter. These drawings and textual descriptions are not intended to limit the scope of the concept of the present disclosure in any way, but to illustrate the concept of the present disclosure to those skilled in the art by referring to specific embodiments. Detailed implementation manners

[0061] To make the objectives, technical solutions and advantages of the present disclosure clearer, the following will further describe the embodiments of the present disclosure in detail with reference to the drawings.

[0062] The terms used in the embodiments section of the present disclosure are only for explaining the embodiments of the present disclosure and are not intended to limit the present disclosure. Unless otherwise defined, the technical terms or scientific terms used herein shall have the ordinary meaning as understood by those of ordinary skill in the field to which the present disclosure pertains. The terms "first", "second", "third", and similar terms used in the specification and claims of the present patent application do not denote any order, quantity, or importance, but are only used to distinguish different components. Similarly, terms such as "a" or "an" do not denote a quantity limitation, but mean that there is at least one. Terms such as "comprising" or "including" mean that the elements or items appearing before "comprising" or "including" cover the elements or items listed after "comprising" or "including" and their equivalents, and do not exclude other elements or items. Terms such as "connected" or "coupled" are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. Terms such as "upper", "lower", "left", "right", etc. are only used to indicate relative positional relationships, and when the absolute position of the object being described changes, the relative positional relationships may also change accordingly.

[0063] An embodiment of the present disclosure provides a charger, as Figure 1 shown. The charger includes a housing assembly 1, a first circuit board 2, a second circuit board 3, a plug assembly 4, and a limiting member 5.

[0064] Among them, the housing assembly 1 has a first wall surface 1a, and the first wall surface 1a has at least one mounting hole 102. The first circuit board 2 is fixed inside the housing assembly 1. The second circuit board 3 is located inside the housing assembly 1 and is connected to the first circuit board 2. The second circuit board 3 faces the first wall surface 1a. The second circuit board 3 includes at least one USB connector 32. One end of each USB connector 32 is fixed on the surface of the second circuit board 3 close to the first wall surface 1a, and the other end is located in a mounting hole 102. The plug assembly 4 is fixed outside the housing assembly 1 and is electrically connected to the first circuit board 2. The limiting member 5 is fixed inside the housing assembly 1 and is used to limit the second circuit board 3 from moving away from the first wall surface 1a.

[0065] Adopting the technical solution provided by the embodiment of the present disclosure, a limiting member 5 is provided inside the housing assembly 1 of the charger. The limiting member 5 can prevent the second circuit board 3 from moving away from the first wall surface 1a, thereby avoiding the USB connector 32 from disengaging from the mounting hole 102, ensuring that the connection line and the USB connector can be smoothly plugged during charging, and improving the service life of the charger.

[0066] Specifically, as Figure 1 shown, the housing assembly 1 includes a housing 11 and a bottom plate 12. The housing 11 can be a hollow cubic structure with one end open. Refer to Figure 1, the top wall of the housing 11 is the first wall surface 1a of the housing assembly 1. There is at least one mounting hole 102 on the top wall of the housing 11. One side of the bottom wall of the housing 11 has an opening, and this opening is used for snap - connection with the bottom plate 12.

[0067] Furthermore, the first circuit board 2 is located inside the housing 11 and is connected to the inside of the housing 11. The second circuit board 3 is also located inside the housing 11. The second circuit board 3 is connected to the first circuit board 2, and the connection between the second circuit board 3 and the first circuit board 2 includes physical connection and electrical connection. The second circuit board 3 is arranged opposite to the top wall of the housing 11. On one side surface of the second circuit board 3 close to the top wall of the housing 11, there are at least one USB connector 32. One end of each USB connector 32 is located in a mounting hole 102, and the other end is connected to the second circuit board 3.

[0068] In an example, the insertion direction of the first circuit board 2 is parallel to that of the USB connector 32.

[0069] As Figure 2 shown, the extending direction of the mounting hole 102 is from the top wall of the housing 11 towards the opening. The housing 11 has a receiving cavity 101, and this receiving cavity 101 is used for receiving the first circuit board 2 and the second circuit board 3. Refer to Figure 2 , the housing 11 has two sliding grooves 103 ( Figure 2 only one is shown), and the two sliding grooves 103 are respectively located inside the receiving cavity 101 and are respectively fixed on two opposite side walls of the housing 11. The sliding groove 103 includes two parallel and relatively arranged strip - shaped protrusions, and the extending direction of each strip - shaped protrusion is the same as that of the mounting hole 102. The gap between the two strip - shaped protrusions is equal to the thickness of the first circuit board 2.

[0070] In implementation, the two side edges of the first circuit board 2 can respectively extend into the above - mentioned two sliding grooves 103. By applying a thrust to the first circuit board 2 from the opening towards the top wall, the first circuit board 2 slides towards the top wall to complete the assembly of the first circuit board 2.

[0071] Furthermore, the second circuit board 3 can be perpendicularly arranged to the first circuit board 2.

[0072] As Figure 2As shown in the figure, one side of the first circuit board 2 close to the top wall of the housing 11 has a first jack 201, and the extending direction of the first jack 201 is perpendicular to the extending direction of the first circuit board 2. One side of the second circuit board 3 close to the first circuit board 2 has a plugging protrusion 301. By plugging the plugging protrusion 301 into the first jack 201, the physical connection and electrical connection between the first circuit board 2 and the second circuit board 3 are realized. The second circuit board 3 is disposed opposite to the top wall of the housing 11 (i.e., the first wall surface 1a of the housing assembly 1), and at least one USB connector 32 is disposed on the board surface of the second circuit board 3 close to the first wall surface 1a.

[0073] Exemplarily, the number of the first jacks 201 and the plugging protrusions 301 can both be multiple, and the numbers of the two are equal. The multiple first jacks 201 are spaced apart along the direction from one chute 103 to another chute 103.

[0074] In some possible embodiments, the housing assembly 1 has a second wall surface 1b, the second wall surface 1b is opposite to the first wall surface 1a, the limiting member 5 is located between the second circuit board 3 and the second wall surface 1b, and both ends of the limiting member 5 are connected to the second wall surface 1b and the second circuit board 3 respectively.

[0075] As Figure 1 shown, the housing assembly 1 includes a housing 11 and a bottom plate 12. The top wall of the housing 11 is the first wall surface 1a of the housing assembly 1, and the bottom plate 12 is the second wall surface 1b of the housing assembly 1. Refer to Figure 2 , the first circuit board 2, the second circuit board 3 and the limiting member 5 are all located in the accommodating cavity 101. The limiting member 5 is located between the second circuit board 3 and the bottom plate 12, and both ends of the limiting member 5 are connected to the second circuit board 3 and the bottom plate 12 respectively.

[0076] In one embodiment, the limiting member 5 includes a supporting portion 501 and an abutting portion 503.

[0077] As Figure 2 shown, one end of the supporting portion 501 is connected to the second wall surface 1b, the abutting portion 503 extends along a direction parallel to the second circuit board 3, the abutting portion 503 is connected to the other end of the supporting portion 501, and abuts against the board surface of the second circuit board 3 close to the second wall surface 1b.

[0078] Specifically, refer to Figure 2 , the abutting portion 503 can be bent relative to the supporting portion 501 in a first direction, and the first direction is the direction from the first circuit board 2 to the supporting plate 501. It can be understood that the abutting portion 503 can also be bent relative to the supporting portion 501 in a second direction, and the second direction is the reverse of the first direction.

[0079] In this way, by setting the limiting member 5 as the supporting portion 501 and the abutting portion 503, since the abutting portion 503 extends in a direction parallel to the second circuit board 3, the contact area between the limiting member 5 and the second circuit board 3 can be increased, thereby improving the limiting stability of the limiting member 5 to the second circuit board 3.

[0080] Specifically, referring to Figure 2 , the supporting portion 501 has a plate-like structure, the supporting portion 501 is arranged parallel to the first circuit board 2, and one end is connected to the bottom plate 12. The abutting portion 503 has a plate-like structure, the abutting portion 503 is located on the side of the supporting portion 501 away from the bottom plate 12, and is connected to the other end of the supporting portion 501.

[0081] Optionally, a convex structure 121 may be provided on one side of the bottom plate 12 close to the mounting hole 102.

[0082] As Figure 1 shown, the convex structure 121 is located on one side of the bottom plate 12 close to the mounting hole 102. The convex structure 121 is used to abut against the end of the supporting portion 501 away from the second circuit board 3. The convex structure 121 may be integrally formed with the bottom plate 12 to improve the overall strength of the convex structure 121.

[0083] In this way, the existence of the convex structure 121 can shorten the length of the supporting portion 501, thereby improving the overall stiffness of the supporting portion 501, avoiding deformation of the limiting member 5 due to thrust during the limiting of the second circuit board 3, and thus improving the service life of the charger.

[0084] Exemplarily, one side of the convex structure 121 close to the second circuit board 3 has a slot structure, and the slot width of the slot structure is adapted to the thickness of the supporting portion 501 for clamping the end of the supporting portion 501 away from the second circuit board 3. In this way, the connection stability between the supporting portion 501 and the bottom cover 12 can be improved.

[0085] It can be understood that the supporting portion 501 and the abutting portion 503 may be integrally formed components, that is, the limiting member 5 has a plate-like structure, and a part of the limiting member 5 is bent to form the above-mentioned abutting portion 503. The supporting portion 501 and the abutting portion 503 may also be components processed step by step. For example, the supporting portion 501 and the abutting portion 503 may both have plate-like structures, and the two are connected together by a welding process. The embodiments of the present disclosure do not limit this.

[0086] In some possible embodiments, the first circuit board 2 includes a first board body 21 and a transformer 22.

[0087] As Figure 1As shown, the first circuit board 2 includes a first board body 21 and a transformer 22. The transformer 22 is connected to the first board body 21 and is located within the space formed by the first board body 21, the support portion 501, the second circuit board 3, and the second wall surface 1b. The limiting member 5 is located on the side of the transformer 22 away from the first board body 21 and is connected to the transformer 22 through a thermal conductive silicone gel.

[0088] The charging head can be a high-power charging head, such as a 67W charging head. Correspondingly, a transformer 22 can be provided inside the charging head. The transformer 22 generates a relatively large amount of heat during operation. Connecting the limiting member 5 to the transformer 22 through a thermal conductive silicone gel can enable the heat generated by the transformer 22 to be transferred to the limiting member 5 through the thermal conductive silicone gel, avoiding heat concentration inside the transformer 22, thereby improving the safety of using the charging head.

[0089] In one example, the limiting member 5 further includes at least one bending portion 502.

[0090] As Figure 4 shown, the bending portion 502 extends along the support portion 501 towards the first board body 21 and faces at least one side surface of the transformer 22.

[0091] Specifically, referring to Figure 3 , the bending portion 502 has a plate-like structure. The bending portion 502 is located between the support portion 501 and the first board body 21, is arranged opposite to the side surface of the transformer 22, and is connected to the support portion 501.

[0092] In this way, the limiting member 5 can cover the outside of the transformer 22, increasing the area of the relative arrangement between the transformer 22 and the limiting member 5, thereby improving the heat dissipation efficiency.

[0093] Exemplarily, the limiting member 5 can include three bending portions 502. The transformer 22 has a cube structure, and the three bending portions 502 are respectively arranged opposite to three side walls of the transformer 22 and the abutting portion 503 facing different directions.

[0094] It can be understood that the support portion 501, the bending portion 502, and the abutting portion 503 can be integrally formed components, that is, the limiting member 5 has a plate-like structure, and part of the limiting member 5 is bent to form the above-mentioned bending portion 502 and abutting portion 503. The support portion 501, the bending portion 502, and the abutting portion 503 can also be components processed step by step. For example, the bending portion 502 and the abutting portion 503 can both have a plate-like structure, and the two are connected to the support portion 501 through a welding process. The embodiments of the present disclosure do not make any limitations in this regard.

[0095] Optionally, the end of the bending portion 502 away from the support portion 501 can be connected to the first board body 21.

[0096] As Figure 6As shown, the first plate body 21 may be provided with three second jacks 202, which are arranged at intervals around the transformer. One end of the bent portion 502 away from the support portion 501 passes through the second jack 202 to achieve a fixed connection between the bent portion 502 and the first plate body 21.

[0097] Adopting the technical solution provided by the embodiment of the present disclosure, the limiting member 5 is connected to the bottom plate 12 not only through the support portion 501 but also to the first plate body 21 through the bent portion 502, which can increase the fixing strength of the limiting member 5 inside the housing assembly 1 and prevent the limiting member 5 from deforming during the limiting of the second circuit board 3, thereby improving the service life of the charger head.

[0098] In one example, there is a gap 100 between the bent portion 502 and the side surface of the transformer 22.

[0099] As Figure 5 shown, the bent portion 502 is located between the support portion 501 and the first plate body 21 and is connected to the support portion 501. The bent portion 502 is arranged opposite to the side surface of the transformer 22, and there is a gap 100 between the bent portion 502 and the transformer 22.

[0100] Adopting the technical solution provided by the embodiment of the present disclosure, during the process of using the limiting member 5 to limit the second circuit board 3, the limiting member 5 may be displaced in the extending direction of the mounting hole 102 under the action of a thrust force. If the bent portion 502 is in close contact with the side surface of the transformer 22, the bent portion 502 may scratch the outer shell of the transformer 22 during displacement, resulting in potential safety hazards.

[0101] In one example, the limiting member 5 is made of a material with good electrical conductivity and good thermal conductivity. For example, the limiting member 5 is a metal sheet made of copper or other materials.

[0102] In this example, the charger head further includes an insulating member 6, which is located between the limiting member 5 and the second circuit board 3 and is connected to the limiting member 5 and the second circuit board 3 respectively.

[0103] As Figure 7 shown, the insulating member 6 has an L-shaped plate structure. The thickness of the insulating member 6 is greater than 0.4 mm, and the creepage distance between the limiting member 5 and the second circuit board 3 is greater than 5 mm.

[0104] Among them, the creepage distance between the limiting member 5 and the second circuit board 3 refers to the shortest distance from the abutting portion 503 through the surface of the insulating member 6 to the second circuit board 3.

[0105] The insulating member 6 may be made of a non-conductive material such as engineering plastic, and the embodiment of the present disclosure does not limit this.

[0106] By adopting the technical solution provided by the embodiment of the present disclosure, the power supply side components (primary side components) and the load side components (secondary side components) in the charger can be separated by arranging the insulating member 6, so as to avoid electric shock when the user touches the USB connector 32 and improve the use safety of the charger.

[0107] In another example, the limiting member 5 is made of a non-conductive material with good thermal conductivity. For example, the limiting member 5 is a non-metallic insulating member made of materials such as ceramics.

[0108] In this example, the charger does not need to be provided with the insulating member 6, which can reduce the number of components in the charger.

[0109] In some possible embodiments, the housing assembly 1 has a third wall surface 1c, and the third wall surface 1c is a wall surface adjacent to a wall surface 1a in the housing assembly 1. Refer to Figure 8 The third wall surface 1c is the side wall of the housing 11. The housing 11 has a receiving cavity. The limiting member 5 is located in the receiving cavity, between the second circuit board 3 and the second wall surface 1b, and is connected to the third wall surface 1c of the housing assembly 1.

[0110] Exemplarily, as Figure 8 shown, the limiting member 5 has a block structure. The second circuit board 3 includes a second board body 31 and a USB connector 32. The second board body 31 is disposed opposite to the first wall surface 1a. The USB connector 32 is located on the side of the second board body 31 close to the first wall surface 1a and is connected to the second board body 31. A side wall surface of the limiting member 5 close to the second board body 31 is arranged in parallel with the second board body 31, and this wall surface abuts against the second board body 31.

[0111] Exemplarily, the connection manner between the limiting member 5 and the housing assembly 1 can be bonding or snap connection, and the embodiment of the present disclosure does not limit this.

[0112] In some possible embodiments, the first wall surface 1a has at least one first mounting hole 1021 and at least one second mounting hole 1022.

[0113] As Figure 9 shown, the shape and size of the first mounting hole 1021 are respectively adapted to the C-type USB connector, and the shape and size of the second mounting hole 1022 are respectively adapted to the A-type USB connector. The second circuit board 3 includes at least one C-type USB connector 321 and at least one A-type USB connector 322. One end of each C-type USB connector 321 is fixed on the board surface of the second circuit board 3 close to the first wall surface 1a, and the other end is fixed in a first mounting hole 1021. One end of each A-type USB connector 322 is fixed on the board surface of the second circuit board 3 close to the first wall surface 1a, and the other end is fixed in a second mounting hole 1022.

[0114] Adopting the technical solution provided by the embodiment of the present disclosure, a plurality of Type-A USB connectors 322 and a plurality of Type-C USB connectors 321 are provided on the first wall surface 1a of the charger head. This enables the charger head to simultaneously connect a plurality of connection lines adapted to the Type-A USB connectors 322 and a plurality of connection lines adapted to the Type-C USB connectors 321, improving the expandability and versatility of the charger head in use.

[0115] Optionally, the first wall surface 1a has two first mounting holes 1021 and two second mounting holes 1022, and the two first mounting holes 1021 and the two second mounting holes 1022 are arranged in a matrix.

[0116] Exemplarily, the arrangement of the two first mounting holes 1021 and the two second mounting holes 1022 in a matrix may be a 2×2 matrix arrangement.

[0117] In this way, the distribution of multiple USB connectors can be made more uniform, enhancing the aesthetics of the charger head.

[0118] In some possible embodiments, the plug assembly 4 includes a plug 41, a first elastic sheet 42, and a second elastic sheet 43.

[0119] As Figure 2 shown, the bottom plate 12 has a third mounting hole 122, and the third mounting hole 122 is in communication with the accommodation cavity 101 of the housing 11 and has the same extending direction as that of the mounting hole 102. One end of the plug 41 is located in the accommodation cavity 101, and the other end extends out of the accommodation cavity 101 through the above-mentioned third mounting hole 122. The first elastic sheet 42 is connected to one pin of the plug 41 and is electrically connected to the first circuit board 2, and the second elastic sheet 43 is connected to the other pin of the plug 41 and is electrically connected to the first circuit board 2, realizing the electrical connection between the plug 41 and the first circuit board 2.

[0120] The technical solution provided by the embodiment of the present disclosure has at least the following beneficial effects:

[0121] The embodiment of the present disclosure provides a charger head, which includes a housing assembly 1 and a limiting member 5. The housing assembly 1 has a mounting hole 102 for accommodating a USB connector 32, and the limiting member 5 is fixed in the housing assembly 1 for restricting the second charger 3 having a USB connector 32 from moving away from the mounting hole 102, thereby avoiding the USB connector 32 from detaching from the mounting hole and ensuring that the USB connector 32 remains in the mounting hole 102 after frequent plugging and unplugging of connection lines, and further improving the service life of the charger head.

[0122] The embodiment of the present disclosure also provides a charger. The charger includes the above-mentioned charger head and a connection line adapted to the charger head.

[0123] The above are only optional embodiments of the present disclosure, and are not intended to limit the present disclosure. Any modifications, equivalent replacements, improvements, etc. made within the principle of the present disclosure shall be included within the protection scope of the present disclosure.

Claims

1. A charging head, characterized in that: The charging head comprises a housing assembly (1), a first circuit board (2), a second circuit board (3), a latch assembly (4) and a stopper (5); The housing assembly (1) has a first wall surface (1a), and the first wall surface (1a) has at least one mounting hole (102); The first circuit board (2) is fixed in the housing assembly (1); The second circuit board (3) is located in the housing assembly (1) and is connected to the first circuit board (2); the second circuit board (3) is opposite to the first wall surface (1a); the second circuit board (3) comprises at least one USB connector (32); one end of each USB connector (32) is fixed to a surface of the second circuit board (3) close to the first wall surface (1a), and the other end is located in a mounting hole (102); The latch assembly (4) is fixed outside the housing assembly (1) and is electrically connected to the first circuit board (2); The limiting member (5) is fixed in the housing assembly (1) and is used to limit the movement of the second circuit board (3) in a direction away from the first wall surface (1a).

2. The charging head according to claim 1, characterized in that: The housing component (1) has a second wall surface (1b), and the second wall surface (1b) is opposite to the first wall surface (1a); The limiting member (5) is located between the second circuit board (3) and the second wall surface (1b), and two ends of the limiting member (5) are respectively connected to the second wall surface (1b) and the second circuit board (3).

3. The charging head according to claim 2, characterized in that: The limiting member (5) comprises a supporting portion (501) and an abutting portion (503); One end of the support portion (501) is connected to the second wall surface (1b); The abutment portion (503) extends in a direction parallel to the second circuit board (3), is connected to the other end of the support portion (501), and abuts against a surface of the second circuit board (3) close to the second wall surface (1b).

4. The charging head according to claim 3, characterized in that: The first circuit board (2) comprises a first board body (21) and a transformer (22), the transformer (22) being connected to the first board body (21), and the transformer (22) being located in a space formed by the first board body (21) and the supporting portion (501), the second circuit board (3) and the second wall surface (1b); The limiting component (5) is located on a side of the transformer (22) away from the first plate (21), and is connected to the transformer (22) via heat-conducting silicone.

5. The charging head according to claim 4, characterized in that: The limiting member (5) further comprises at least one bending portion (502); The bent portion (502) extends along the supporting portion (501) toward the first plate body (21) and is opposite to at least one side surface of the transformer (22).

6. The charging head according to claim 5, characterized in that: One end of the bent portion (502) away from the supporting portion (501) is connected to the first plate body (21).

7. The charging head according to claim 5, characterized in that: A gap (100) is provided between the bent portion (502) and the transformer (22).

8. The charging head according to claim 4, characterized in that: The limiting member (5) is a metal sheet; The charging head further comprises an insulating member (6), wherein the insulating member (6) is located between the limiting member (5) and the second circuit board (3), and is respectively connected to the limiting member (5) and the second circuit board (3).

9. The charging head according to claim 1, characterized in that: The shell component (1) has a third wall surface (1c), and the third wall surface (1c) is a wall surface in the shell component (1) adjacent to the first wall surface (1a); The limiting member (5) is located on a side of the second circuit board (3) away from the first wall surface (1a), and is connected to the third wall surface (1c).

10. The charging head according to claim 1, characterized in that: The first wall surface (1a) has at least one first mounting hole (1021) and at least one second mounting hole (1022), the shape and size of the first mounting hole (1021) are respectively adapted to a Type C USB connector, and the shape and size of the second mounting hole (1022) are respectively adapted to an Type A USB connector; The second circuit board (3) comprises at least one Type C USB connector (321) and at least one Type A USB connector (322); one end of each Type C USB connector (321) is fixed on the surface of the second circuit board (3) close to the first wall surface (1a), and the other end is fixed in a first mounting hole (1021); one end of each Type A USB connector (322) is fixed on the surface of the second circuit board (3) close to the first wall surface (1a), and the other end is fixed in a second mounting hole (1022).

11. The charging head according to claim 8, characterized in that: The first wall surface (1a) has two first mounting holes (1021) and two second mounting holes (1022), and the two first mounting holes (1021) and the two second mounting holes (1022) are distributed in a matrix.

12. A charger, characterized in that: The charger comprises a charging head as described in any one of claims 1 to 11 and a connecting line compatible with the charging head.

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