Electronic equipment accessory
The plug-in fixed structure solves the problem of high-cost soldering between the charger heat sink and the circuit board, enabling efficient assembly and easy disassembly, reducing production costs and improving heat dissipation.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHENZHEN BASEUS TECH CO LTD
- Filing Date
- 2025-03-25
- Publication Date
- 2026-05-12
AI Technical Summary
The existing method of soldering the heat sink to the circuit board in chargers requires high operational skills and has low soldering efficiency, which leads to increased production costs.
The fixed structure adopts a plug-in connection, and the second fixed structure of the heat dissipation component is connected to the first fixed structure of the circuit board assembly to achieve a detachable connection, simplifying the assembly and disassembly process.
It improves assembly efficiency, reduces production costs, simplifies the maintenance process, avoids waste of tin materials, and improves heat dissipation.
Smart Images
Figure CN224234018U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of electronic product technology, and in particular to an electronic device accessory. Background Technology
[0002] The primary function of a charger is to charge electronic devices, ensuring they can be used for extended periods without interruption. Chargers generate heat during charging; to guarantee reliability, heat sinks are typically installed in the heat-generating areas of the charger, such as the circuit board (PCB).
[0003] In the existing technology, the heat sink of the charger needs to be soldered to the circuit board. The soldering process has high operation requirements, low soldering efficiency, and requires a certain amount of tin material, which increases the product production cost.
[0004] Therefore, there is an urgent need for an electronic device accessory to solve the above problems. Utility Model Content
[0005] Based on the above problems, the purpose of this utility model is to provide an electronic device accessory that can simplify the assembly process of heat sinks and circuit boards, improve assembly efficiency, and reduce product production costs.
[0006] To achieve the above objectives, the present invention adopts the following technical solution:
[0007] An electronic device accessory is provided, comprising:
[0008] The shell has an inner wall structure that forms a receiving cavity;
[0009] A circuit board assembly is disposed within the accommodating cavity, and the circuit board assembly is provided with a first fixing structure;
[0010] A heat dissipation component is disposed between the circuit board assembly and the inner wall of the housing. The heat dissipation component has a second fixing structure that cooperates with the first fixing structure. The heat dissipation component and the circuit board assembly are detachably fixedly connected through the plug-in cooperation of the first fixing structure and the second fixing structure.
[0011] As an optional solution for electronic device accessories of this utility model, the heat dissipation component includes a heat sink, which is attached to the circuit board of the circuit board assembly.
[0012] As an optional solution for the electronic device accessory of this utility model, the first fixing structure includes a fixing hole disposed in the circuit board assembly, and the second fixing structure includes a fixing foot disposed in the heat dissipation component. The fixing foot can be inserted into the fixing hole and is located at the upper limit of the fixing hole in the insertion direction.
[0013] Alternatively, the first fixing structure includes a first card plate protruding from the circuit board assembly, and the second fixing structure includes a second card plate disposed on the heat dissipation component. One of the first card plate and the second card plate is provided with a card hole, and the other is provided with a card protrusion, which engages with the card hole.
[0014] As an optional solution for the electronic device accessory of this utility model, the fixing foot includes a first elastic buckle and a second elastic buckle arranged at intervals. When the fixing foot is inserted into the fixing hole, the first elastic buckle and the second elastic buckle can approach each other and generate elastic deformation under the pushing action of the hole wall of the fixing hole, and the first elastic buckle and the second elastic buckle can move away from each other under their own elastic force and be engaged in the fixing hole.
[0015] As an optional solution for the electronic device accessory of this utility model, the first elastic buckle has a first limiting protrusion protruding on the side opposite to the second elastic buckle. The first limiting protrusion can stop the edge of the fixing hole in the insertion direction of the fixing foot.
[0016] And / or, the second elastic buckle has a second limiting protrusion on the side opposite to the first elastic buckle, and the second limiting protrusion can stop the edge of the fixing hole in the insertion direction of the fixing foot.
[0017] As an optional solution for electronic device accessories of this utility model, a first guide slope is provided at one end of the first elastic buckle that is inserted into the fixing hole. The first guide slope is used to guide the first elastic buckle to be inserted into the fixing hole.
[0018] And / or, one end of the second elastic buckle that is inserted into the fixing hole is provided with a second guide slope, the second guide slope being used to guide the second elastic buckle into the fixing hole.
[0019] As an optional solution for the electronic device accessory of this utility model, the second fixing structure further includes a connecting arm, the connecting arm including a first arm and a second arm arranged at an angle, the first arm being connected to the heat dissipation component, and the second arm having a fixing foot at one end away from the first arm, the second arm extending along the insertion direction of the fixing foot.
[0020] As an optional solution for the electronic device accessory of this utility model, the electronic device accessory further includes an insulating sheet disposed between the circuit board assembly and the heat dissipation component, the insulating sheet being provided with a clearance groove for avoiding the connecting arm.
[0021] As an optional solution for electronic device accessories of this utility model, the connecting arm, the fixing foot and the heat dissipation component are integrally formed components.
[0022] As an optional solution for the electronic device accessory of this utility model, the heat dissipation component is provided with the second fixing structure on at least two opposite sides;
[0023] At least one of the second fixing structures is provided with a third limiting protrusion, which is used to limit the insertion depth of the fixing foot in the fixing hole.
[0024] The beneficial effects of this utility model are as follows:
[0025] The electronic device accessory provided by this utility model allows for easy assembly by simply inserting the second fixing structure of the heat dissipation component into the first fixing structure of the circuit board assembly. This fixes the heat dissipation component onto the circuit board assembly, enabling it to dissipate heat. Compared to the prior art where the heat sink is soldered to the circuit board assembly, this insertion operation is more convenient, simplifies the assembly process, reduces assembly requirements, improves assembly efficiency, enhances product production efficiency, and saves solder, thus reducing production costs. Furthermore, since the second fixing structure is detachably inserted into the first fixing structure, external force can be applied to the heat dissipation component to detach it from the first fixing structure during subsequent maintenance. This eliminates the need for desoldering and remelting, simplifying the disassembly process, improving maintenance efficiency, and minimizing the risk of damaging the circuit board assembly. Attached Figure Description
[0026] 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.
[0027] Figure 1 This is a first structural schematic diagram (hidden housing) of an electronic device accessory provided in a specific embodiment of this utility model;
[0028] Figure 2 This is a first structural schematic diagram of the heat dissipation component provided in a specific embodiment of the present utility model;
[0029] Figure 3 This is a schematic diagram of the first insertion and connection between the circuit board assembly and the heat dissipation component provided in a specific embodiment of this utility model;
[0030] Figure 4 This is a schematic diagram of the second insertion and connection between the circuit board assembly and the heat dissipation component provided in a specific embodiment of this utility model;
[0031] Figure 5 This is a schematic diagram of the second structure of the heat dissipation component provided in a specific embodiment of this utility model;
[0032] Figure 6 This is a schematic diagram of the third structure of the heat dissipation component provided in a specific embodiment of this utility model;
[0033] Figure 7 yes Figure 6 A magnified view of a section at point A in the middle;
[0034] Figure 8 This is a schematic diagram of the second structure of the electronic device accessory provided in a specific embodiment of this utility model.
[0035] In the picture:
[0036] 1. Circuit board assembly; 2. Heat dissipation components; 3. Insulating sheet;
[0037] 11. Fixing holes;
[0038] 21. Second fixed structure;
[0039] 211. Fixed foot; 212. Connecting arm; 213. Third limiting protrusion;
[0040] 2111, First elastic buckle; 2112, Second elastic buckle;
[0041] 21111, First limiting protrusion; 21112, First guide slope; 21113, Third guide slope;
[0042] 21121. Second limiting protrusion; 21122. Second guide slope; 21123. Fourth guide slope;
[0043] 2121. First arm; 2122. Second arm;
[0044] 31. Clearance slot;
[0045] 100. Housing; 200. Charging pins. Detailed Implementation
[0046] To make the technical problems solved by this utility model, the technical solutions adopted, and the technical effects achieved clearer, the technical solutions of the embodiments of this utility model will be further described in detail below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.
[0047] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. Specifically, the terms "first position" and "second position" refer to two different positions.
[0048] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to fixed connections or detachable connections; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal connections 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.
[0049] like Figures 1 to 8 As shown, this embodiment provides an electronic device accessory that simplifies the assembly process, improves assembly efficiency, and reduces product manufacturing costs. The electronic device accessory includes a housing 100, a circuit board assembly 1, and a heat dissipation component 2.
[0050] Among them, see Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 8 The housing 100 has an inner wall structure forming a cavity; the circuit board assembly 1 is disposed in the cavity and has a first fixing structure; the heat dissipation component 2 is disposed between the circuit board assembly 1 and the inner wall of the housing 100 and has a second fixing structure 21 that cooperates with the first fixing structure. The heat dissipation component 2 and the circuit board assembly 1 are detachably fixedly connected by the insertion and cooperation of the first fixing structure and the second fixing structure 21.
[0051] The electronic device accessory provided in this embodiment can be fixed to the circuit board assembly 1 by simply plugging the second fixing structure 21 of the heat dissipation component 2 into the first fixing structure of the circuit board assembly 1 during assembly. This allows the heat dissipation component 2 to dissipate heat from the circuit board assembly 1. Compared with the prior art method of fixing the heat sink to the circuit board of the circuit board assembly 1 by soldering, the plugging operation is more convenient, simplifies the assembly process, reduces assembly requirements, improves assembly efficiency, enhances product production efficiency, and saves tin material, thereby reducing product production costs.
[0052] Furthermore, since the second fixing structure 21 is detachably connected to the first fixing structure, when maintaining electronic equipment components later, external force can be applied to the heat dissipation component 2 to detach the second fixing structure 21 from the first fixing structure without the need for desoldering and soldering operations. The disassembly process is simple, which can improve maintenance efficiency and is less likely to damage the circuit board assembly 1.
[0053] Optionally, the heat dissipation component 2 includes a heat sink, which is attached to the circuit board of the circuit board assembly 1. Attaching the heat sink to the circuit board ensures sufficient contact area between the heat sink and the circuit board, resulting in higher heat transfer efficiency and thus improving the heat dissipation effect of the heat dissipation component 2 on the circuit board assembly 1.
[0054] See Figure 3 and Figure 4 The first fixing structure includes a fixing hole 11 disposed in the circuit board assembly 1, and the second fixing structure 21 includes a fixing foot 211 disposed in the heat dissipation component 2. The fixing foot 211 can be inserted into the fixing hole 11, and its upper limit in the insertion direction is located within the fixing hole 11. When assembling the heat dissipation component 2 and the circuit board assembly 1, the fixing foot 211 is aligned with the fixing hole 11 and inserted. After the fixing foot 211 is inserted into place, its upper limit in the insertion direction is located within the fixing hole 11, that is, the fixing foot 211 is inserted and fixed with the fixing hole 11, so that the heat sink can be attached to the circuit board of the circuit board assembly 1.
[0055] Optionally, at least two opposite sides of the heat dissipation component 2 are provided with second fixing structures 21. Correspondingly, the circuit board assembly 1 is provided with first fixing structures that correspond one-to-one with at least two second fixing structures 21. The second fixing structures 21 are inserted and fixed in a one-to-one correspondence with the first fixing structures to improve the connection stability between the heat dissipation component 2 and the circuit board assembly 1.
[0056] In this embodiment, as Figure 1 and Figure 2 As shown, a second fixing structure 21 is provided on each of the two sides of the heat dissipation component 2 in the width direction to ensure that the heat dissipation component 2 is securely fixed on the circuit board assembly 1. In other embodiments, the number of second fixing structures 21 and first fixing structures can be increased or decreased according to actual needs, and is not limited to the numbers and arrangements listed above.
[0057] In some alternative embodiments, the first fixing structure may be a first retaining plate protruding from the circuit board assembly 1, and the second fixing structure 21 may be a second retaining plate disposed on the heat dissipation member 2 and extending toward the circuit board assembly 1. One of the first and second retaining plates has a retaining hole, and the other has a retaining protrusion. When the heat dissipation member 2 is assembled with the circuit board assembly 1, the second retaining plate and the first retaining plate engage through the retaining protrusion and the retaining hole, thereby fixing the heat dissipation member 2 and the circuit board assembly 1. Further, the first retaining plate may be disposed at the edge of the circuit board assembly 1 and extend away from the heat dissipation member 2. The second retaining plate may be disposed at the edge of the heat dissipation member 2. When the heat dissipation fins of the heat dissipation member 2 are attached to the circuit board of the circuit board assembly 1, the second retaining plate can be attached to and slide against the first retaining plate. When both slide until the retaining protrusion engages with the retaining hole, the heat dissipation member 2 is installed in place, and the assembly is complete. To disassemble the heat dissipation member 2, external force is used to drive the heat dissipation member 2 away from the circuit board assembly 1, causing the retaining protrusion to disengage from the retaining hole.
[0058] See Figure 2 , Figure 4 and Figure 5 The fixing foot 211 includes a first elastic latch 2111 and a second elastic latch 2112 spaced apart. When the fixing foot 211 is inserted into the fixing hole 11, the first elastic latch 2111 and the second elastic latch 2112 can approach each other and generate elastic deformation under the pushing action of the hole wall of the fixing hole 11, and the first elastic latch 2111 and the second elastic latch 2112 can move away from each other under their own elastic force and be engaged with the fixing hole 11. Specifically, during the process of inserting the fixing foot 211 into the fixing hole 11, the first elastic latch 2111 and the second elastic latch 2112 deform and accumulate elastic potential energy. When the fixing foot 211 is inserted into the fixing hole 11, the first elastic latch 2111 and the second elastic latch 2112 release elastic potential energy, and the two move away from each other under their own elastic force until they are engaged with the fixing hole 11, so that the upper limit of the fixing foot 211 in its insertion direction is located inside the fixing hole 11, thereby fixing the heat dissipation component 2 on the circuit board assembly 1.
[0059] The first elastic buckle 2111 and the second elastic buckle 2112 are both designed to be elastically deformable, so that the fixing foot 211 can be automatically limited in the fixing hole 11 after being inserted into place, which simplifies the assembly process of the heat dissipation component 2 and the circuit board assembly 1.
[0060] Optionally, see Figure 4 , Figure 6 and Figure 7 The first elastic buckle 2111 has a first limiting protrusion 21111 protruding on the side opposite to the second elastic buckle 2112. The first limiting protrusion 21111 can stop the fixing foot 211 from the edge of the fixing hole 11 in the insertion direction. Figure 4As shown, when the fixing foot 211 is inserted into the fixing hole 11, the first limiting protrusion 21111 stops on one side edge of the fixing hole 11, which can prevent the fixing foot 211 from dislodging from the fixing hole 11 along the insertion direction, so that the fixing foot 211 is firmly inserted into the fixing hole 11.
[0061] Optionally, see Figure 4 , Figure 6 and Figure 7 The second elastic buckle 2112 has a second limiting protrusion 21121 protruding on the side opposite to the first elastic buckle 2111. The second limiting protrusion 21121 can stop the fixing foot 211 from the edge of the fixing hole 11 in the insertion direction. Figure 4 As shown, after the fixing foot 211 is inserted into the fixing hole 11, the second limiting protrusion 21121 stops on the edge of the fixing hole 11 on the other side, which can further prevent the fixing foot 211 from dislodging from the fixing hole 11 along the insertion direction and improve the insertion firmness of the fixing foot 211 and the fixing hole 11.
[0062] In some other embodiments, the first limiting protrusion 21111 may be provided only on the side of the first elastic buckle 2111 facing away from the second elastic buckle 2112, or the second limiting protrusion 21121 may be provided only on the side of the second elastic buckle 2112 facing away from the first elastic buckle 2111, as long as the fixing foot 211 can be restricted from disengaging from the fixing hole 11 along its insertion direction.
[0063] Optionally, see Figure 6 and Figure 7 The first elastic buckle 2111 is inserted into the fixing hole 11 at one end and is provided with a first guide slope 21112. The first guide slope 21112 is used to guide the first elastic buckle 2111 into the fixing hole 11. The first guide slope 21112 enables the first elastic buckle 2111 to be smoothly inserted into the fixing hole 11, further improving the assembly efficiency of the heat dissipation component 2.
[0064] In this embodiment, the first guide slope 21112 is disposed on the first limiting protrusion 21111. When the first elastic buckle 2111 is inserted into the fixing hole 11, the first guide slope 21112 slides and engages with the hole wall of the fixing hole 11 to guide the first elastic buckle 2111 into the fixing hole 11.
[0065] See Figure 6 and Figure 7 The second elastic buckle 2112 is inserted into the fixing hole 11 at one end and is provided with a second guide slope 21122. The second guide slope 21122 is used to guide the second elastic buckle 2112 into the fixing hole 11. The provision of the second guide slope 21122 enables the second elastic buckle 2112 to be smoothly inserted into the fixing hole 11, thereby improving the assembly efficiency of the heat dissipation component 2.
[0066] In this embodiment, the second guide slope 21122 is disposed on the second limiting protrusion 21121. The inclination direction of the second guide slope 21122 is opposite to that of the first guide slope 21112. When the second elastic buckle 2112 is inserted into the fixing hole 11, the second guide slope 21122 slides and engages with the hole wall of the fixing hole 11, thereby guiding the second elastic buckle 2112 into the fixing hole 11.
[0067] See Figure 6 and Figure 7 The first limiting protrusion 21111 is also provided with a third guide slope 21113. The third guide slope 21113 is set at an angle with the first guide slope 21112. The third guide slope 21113 can guide the first elastic buckle 2111 to disengage from the fixing hole 11. When disassembling the heat dissipation component 2, the third guide slope 21113 slides with the hole wall of the fixing hole 11, which can make the first elastic buckle 2111 disengage smoothly from the fixing hole 11, thereby improving the ease of disassembly of the heat dissipation component 2.
[0068] Furthermore, a fourth guide slope 21123 is provided on the second limiting protrusion 21121. The fourth guide slope 21123 is set at an angle to the second guide slope 21122. When the heat dissipation component 2 is disassembled, the fourth guide slope 21123 slides with the wall of the fixing hole 11, so that the second elastic buckle 2112 can be smoothly disengaged from the fixing hole 11.
[0069] See Figure 3 , Figure 4 , Figure 5 and Figure 6 The second fixing structure 21 also includes a connecting arm 212, which includes a first arm portion 2121 and a second arm portion 2122 arranged at an angle. The first arm portion 2121 is connected to the heat dissipation component 2, and a fixing foot 211 is provided at the end of the second arm portion 2122 away from the first arm portion 2121. The arrangement of the connecting arm 212 allows the fixing foot 211 to extend out of the heat dissipation component 2 by a certain distance, preventing the fixing foot 211 from interfering with the electronic components of the circuit board assembly 1 at the insertion point of the circuit board assembly 1.
[0070] In this embodiment, the first arm 2121 extends in a direction parallel to the heat dissipation component 2, and the second arm 2122 extends in the insertion direction of the fixing foot 211, so that after the fixing foot 211 is inserted into the fixing hole 11, the heat dissipation fin of the heat dissipation component 2 is just parallel to the circuit board of the circuit board assembly 1, ensuring the heat dissipation effect.
[0071] Optionally, such as Figure 2 , Figure 5 and Figure 6As shown, the connecting arm 212, the fixing foot 211, and the heat dissipation component 2 are integrally formed components. This integral forming process ensures the connection stability between the fixing foot 211, the connecting arm 212, and the heat dissipation component 2, and also simplifies the manufacturing process. For example, the connecting arm 212 and the heat dissipation component 2 are integrally bent, and the extending directions of the first elastic buckle 2111 and the second elastic buckle 2112 of the fixing foot 211 are consistent with the extending direction of the second arm portion 2122 of the connecting arm 212.
[0072] Optionally, see Figure 1 and Figure 3 The electronic device accessories also include an insulating sheet 3 disposed between the circuit board assembly 1 and the heat sink 2. The insulating sheet 3 has a clearance groove 31 for accommodating the connecting arm 212. The insulating sheet 3 effectively isolates the heat sink 2 from the circuit board assembly 1, preventing short circuits or electrical faults in the circuit board assembly 1 and ensuring the operational stability and safety of the circuit board assembly 1. The clearance groove 31 allows the fixing foot 211 to be smoothly inserted into the fixing hole 11, preventing the insulating sheet 3 from interfering with the connection between the heat sink 2 and the circuit board assembly 1.
[0073] Optionally, the insulating sheet 3 is made of an insulating plastic film; for example, the insulating sheet 3 is a Mylar sheet.
[0074] Optionally, see Figure 3 , Figure 5 and Figure 6 The heat dissipation component 2 has at least two opposite sides provided with second fixing structures 21. At least one second fixing structure 21 has a third limiting protrusion 213, which limits the insertion depth of the fixing foot 211 in the fixing hole 11. During the insertion of the fixing foot 211 into the fixing hole 11, when the third limiting protrusion 213 abuts against the circuit board of the circuit board assembly 1, it indicates that the fixing foot 211 is properly inserted. (Refer to...) Figure 3 In the orientation, the third limiting protrusion 213 restricts the fixing foot 211 from continuing to move downward along the insertion direction. (Refer to...) Figure 4 In the center position, the first limiting protrusion 21111 and the second limiting protrusion 21121 restrict the fixing foot 211 from disengaging downward from the fixing hole 11. The first limiting protrusion 21111, the second limiting protrusion 21121 and the third limiting protrusion 213 cooperate to make the fixing foot 211 more firmly engaged in the fixing hole 11, ensuring that the heat dissipation component 2 and the circuit board assembly 1 are firmly connected and fixed.
[0075] For example, the third limiting protrusion 213 protrudes from one side of the connecting arm 212. Specifically, in this embodiment... Figure 5 The third limiting protrusion 213 is located on the right side of the connecting arm 212, which can prevent the third limiting protrusion 213 from interfering with the housing 100, and the structure is locally reasonable.
[0076] like Figure 8 As shown in this embodiment, the electronic device accessory can be a charger, which can be applied to various devices, such as mobile phones, laptops, power banks, and other devices that need to be charged.
[0077] Furthermore, the charger also includes a charging pin 200 electrically connected to the circuit board assembly 1, the charging pin 200 being used to plug into a power outlet to enable charging.
[0078] Since the circuit board assembly 1 and the heat dissipation component 2 are fixed to the first fixed structure via the second fixing structure 21, there is no need to solder the heat dissipation component 2 and the circuit board assembly 1. This simplifies the assembly process, reduces assembly requirements, improves assembly efficiency and product production efficiency, and saves solder material, thus reducing product production costs. Furthermore, the plug-in connection method facilitates later disassembly and maintenance, improving the charger's maintenance convenience.
[0079] Note that 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. An electronic device accessory, characterized in that, include: The housing (100) has an inner wall structure forming a receiving cavity; A circuit board assembly (1) is disposed within the accommodating cavity, and the circuit board assembly (1) is provided with a first fixing structure; A heat dissipation component (2) is disposed between the circuit board assembly (1) and the inner wall of the housing (100). The heat dissipation component (2) has a second fixing structure (21) that cooperates with the first fixing structure. The heat dissipation component (2) and the circuit board assembly (1) are detachably fixedly connected by the insertion and cooperation of the first fixing structure and the second fixing structure (21).
2. The electronic device accessory according to claim 1, characterized in that, The heat dissipation component (2) includes a heat sink, which is attached to the circuit board of the circuit board assembly (1).
3. The electronic device accessory according to claim 1, characterized in that, The first fixing structure includes a fixing hole (11) disposed in the circuit board assembly (1), and the second fixing structure (21) includes a fixing foot (211) disposed in the heat dissipation component (2). The fixing foot (211) can be inserted into the fixing hole (11) and is located at the upper limit of the fixing hole (11) in the insertion direction. Alternatively, the first fixing structure includes a first card plate protruding from the circuit board assembly (1), and the second fixing structure (21) includes a second card plate disposed on the heat dissipation member (2). One of the first card plate and the second card plate is provided with a card hole, and the other is provided with a card protrusion, which engages with the card hole.
4. The electronic device accessory according to claim 3, characterized in that, The fixing foot (211) includes a first elastic buckle (2111) and a second elastic buckle (2112) spaced apart. When the fixing foot (211) is inserted into the fixing hole (11), the first elastic buckle (2111) and the second elastic buckle (2112) can approach each other and generate elastic deformation under the pushing action of the hole wall of the fixing hole (11), and the first elastic buckle (2111) and the second elastic buckle (2112) can move away from each other under their own elastic force and be engaged in the fixing hole (11).
5. The electronic device accessory according to claim 4, characterized in that, The first elastic buckle (2111) has a first limiting protrusion (21111) protruding on the side opposite to the second elastic buckle (2112). The first limiting protrusion (21111) can stop the edge of the fixing hole (11) in the insertion direction of the fixing foot (211). And / or, the second elastic buckle (2112) has a second limiting protrusion (21121) protruding on the side opposite to the first elastic buckle (2111), and the second limiting protrusion (21121) can stop the edge of the fixing hole (11) in the insertion direction of the fixing foot (211).
6. The electronic device accessory according to claim 4, characterized in that, The first elastic buckle (2111) is inserted into the fixing hole (11) at one end and is provided with a first guide slope (21112). The first guide slope (21112) is used to guide the first elastic buckle (2111) into the fixing hole (11). And / or, a second guide slope (21122) is provided at one end of the second elastic buckle (2112) that is inserted into the fixing hole (11), and the second guide slope (21122) is used to guide the second elastic buckle (2112) into the fixing hole (11).
7. The electronic device accessory according to claim 3, characterized in that, The second fixing structure (21) further includes a connecting arm (212), which includes a first arm (2121) and a second arm (2122) arranged at an angle. The first arm (2121) is connected to the heat dissipation component (2), and the second arm (2122) is provided with the fixing foot (211) at one end away from the first arm (2121). The second arm (2122) extends along the insertion direction of the fixing foot (211).
8. The electronic device accessory according to claim 7, characterized in that, The electronic device accessory also includes an insulating sheet (3) disposed between the circuit board assembly (1) and the heat dissipation component (2), the insulating sheet (3) being provided with a clearance groove (31) for avoiding the connecting arm (212).
9. The electronic device accessory according to claim 7, characterized in that, The connecting arm (212), the fixing foot (211), and the heat dissipation component (2) are integrally formed components.
10. The electronic device accessory according to any one of claims 3-9, characterized in that, The heat dissipation component (2) is provided with the second fixing structure (21) on at least two opposite sides; At least one of the second fixing structures (21) is provided with a third limiting protrusion (213), which is used to limit the insertion depth of the fixing foot (211) in the fixing hole (11).