Circuit board mounting mechanism and electronic equipment

Abstract

The present application relates to a circuit board installation mechanism and an electronic device, including a bracket assembly and a circuit board, wherein the bracket assembly is arranged in an electrical housing; the bracket assembly includes a first limiting structure attached to the side wall of the housing and a second limiting structure protruding from the side wall of the housing, the second limiting structure includes a first limiting surface and a second limiting surface perpendicular to each other, and a guide groove is formed between the first limiting surface, the second limiting surface and the first limiting structure to guide the up and down movement of the circuit board; a limiting block is provided at one end of the second limiting surface in contact with the bottom wall of the housing, and the second limiting surface is connected to the limiting block to form a channel for the forward and backward movement of the circuit board; the circuit board includes a first connecting portion and a second connecting portion, and the first connecting portion cooperates with the guide groove; when the circuit board and the bracket assembly are installed, the second connecting portion contacts the limiting block. The installation mechanism of the present application can be used for efficient installation of circuit boards in narrow spaces, reduces production costs, and ensures the stability and aesthetics of electronic equipment.

Description

Technical Field

[0001] The present application relates to the technical field of mounting connectors, and in particular to a circuit board mounting mechanism and electronic equipment. Background Art

[0002] With the advancement of technology and the increasing demand for portability among consumers, small electrical appliances are becoming more and more popular due to their compact size and portability. However, while pursuing portability, how to efficiently assemble circuit boards in a limited space has become a major challenge in product design.

[0003] For example, existing portable Bluetooth speakers are popular among consumers for their small size, convenient wireless connection and high-quality sound quality. However, the circuit board assembly of existing portable Bluetooth speakers is difficult to assemble because there are protruding buttons on one side of the circuit board and speaker terminals very close to the speaker on the other side. To solve this problem, the traditional method is usually to fix the circuit board by removing the extra plastic parts in the electrical housing, which not only increases production costs but also reduces production efficiency. In addition, the extra plastic parts may also affect the overall appearance and portability of the speaker. Summary of the invention

[0004] In order to solve the problem in the prior art that circuit boards cannot be efficiently assembled in a small space, which reduces production efficiency, increases production costs, and affects the overall appearance and portability of electronic equipment.

[0005] The present application provides a circuit board mounting mechanism, comprising a bracket assembly and a circuit board, wherein the bracket assembly is arranged in an electrical appliance housing;

[0006] The bracket assembly includes a first limiting structure attached to the side wall of the shell and a second limiting structure protruding from the side wall of the shell, the second limiting structure includes a first limiting surface and a second limiting surface perpendicular to each other, and a guide groove is formed between the first limiting surface, the second limiting surface and the first limiting structure to guide the upward and downward movement of the circuit board; a limiting block is provided at one end of the second limiting surface in contact with the bottom wall of the shell, and the second limiting surface is connected to the limiting block to form a channel for the forward and backward movement of the circuit board;

[0007] The circuit board includes a first connecting portion and a second connecting portion, wherein the first connecting portion matches the guide groove; when the circuit board and the bracket assembly are installed, the second connecting portion contacts the limit block.

[0008] Furthermore, the first connecting portion protrudes from a side of the circuit board and is perpendicular to the second connecting portion.

[0009] Furthermore, the width of the first connection portion is W2, the width of the second limiting surface is W1, W2>W1; the length of the second connection portion is H2, the distance from the top of the first limiting surface to the limiting block is H1, H2

[0010] Furthermore, a guide structure connected to the first limiting structure is provided at the upper end of the first limiting surface, and the guide structure is coplanar with the first limiting surface.

[0011] Furthermore, the second limiting surface and the top edge of the limiting block are both provided with guiding inclined surfaces.

[0012] Furthermore, the limiting block is a protrusion or a step structure protruding from the second limiting surface and extending toward an end away from the first limiting surface.

[0013] Furthermore, at least one mainboard button is provided on the side of the circuit board facing the shell side wall, and when the circuit board is inserted into the bracket assembly along the front-to-back direction of the bracket assembly, the mainboard button cooperates with the button hole provided on the shell side wall.

[0014] Furthermore, at least one positioning structure is provided on the bottom edge of the circuit board along its length direction, and at least one positioning matching structure matching with the positioning structure is provided on the bottom wall of the housing.

[0015] The present application also provides an electronic device, comprising an electrical housing and the circuit board mounting mechanism, wherein a button accommodating area is provided on a housing side wall of the electrical housing, and a button hole is provided in the button accommodating area;

[0016] When the circuit board is inserted into the bracket assembly along the front-rear direction of the bracket assembly, the mainboard button corresponds to the button hole.

[0017] Furthermore, a protective shell is provided on the outer side of the electrical appliance housing, and a button protrusion is provided on the inner side of the protective shell, and the button protrusion is used to contact the mainboard button.

[0018] Implementing the embodiments of the present application has the following beneficial effects:

[0019] The second limiting surface of the second limiting structure of the present application is connected to the limiting block to form a channel for the circuit board to move forward and backward, so that the circuit board can enter and move out along the front and rear direction of the bracket assembly; a guide groove is formed between the first limiting structure and the second limiting structure of the bracket assembly, which is used to guide the circuit board to move up and down along the guide groove, so that the circuit board can be assembled in a narrow space.

[0020] ​The present application optimizes the installation process of the circuit board by improving the circuit board installation mechanism, solves the interference problem when assembling the circuit board in a small space, improves the assembly efficiency, reduces the production cost, and at the same time ensures the stability and aesthetics of the electronic equipment. It has important practical value and broad application prospects. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solution of the present application, the following is a brief introduction to the drawings required for use in the embodiments or prior art descriptions. Obviously, the drawings described below are only some embodiments of the present application, and for ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0022] Figure 1 It is a schematic diagram of the installation structure of a circuit board installation mechanism according to an embodiment of the present application;

[0023] Figure 2 is an enlarged structural schematic diagram of a bracket assembly according to an embodiment of the present application;

[0024] Figure 3 It is a schematic diagram of the structure of the circuit board and the electrical appliance housing of the embodiment of the present application;

[0025] Figure 4 is a schematic diagram of the cross-sectional structure of the circuit board of the embodiment of the present application, from the front-to-back direction close to the side wall of the housing;

[0026] Figure 5 It is a schematic diagram of the cross-sectional structure of the circuit board of the embodiment of the present application when the bracket assembly is inserted downward;

[0027] Figure 6 It is a schematic diagram of the structure of the electrical appliance housing according to an embodiment of the present application;

[0028] Figure 7 It is a schematic diagram of the structure after the circuit board and the electrical appliance housing of the embodiment of the present application are installed.

[0029] Among them, the figure marks correspond to: bracket assembly 1, first limiting structure 11, second limiting structure 12, first limiting surface 121, second limiting surface 122, limiting block 123, guide structure 124, circuit board 2, first connecting part 21, second connecting part 22, mainboard button 23, positioning structure 24, guide groove 3, guide slope 4, positioning matching structure 5, electrical housing 6, housing side wall 61, housing bottom wall 62, button accommodating area 63, button hole 64, protective shell 7, button protrusion 71, corner cutting structure 8. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0031] In the description of the present application, it should be understood that the terms "upper, lower, inside, outside, top, bottom" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, or are for the components themselves in the vertical, perpendicular or gravity direction, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application. The terms "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, features defined as "first" and "second" may explicitly or implicitly include one or more of the features.

[0032] Unless otherwise defined, the technical and scientific terms used herein have the same meaning as those generally understood by those skilled in the art of the technical field of the present application. The terms used herein are only for describing specific implementation purposes and are not intended to limit the present application. Terms such as "parts" and "components" appearing in this article may represent either a single part or a combination of multiple parts. Terms such as "installation", "setting", "connection" and the like appearing in this article should be understood in a broad sense, for example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection or an electrical connection; it may represent that one component is directly attached to another component, or that one component is attached to another component through an intermediate, or it may be the internal connection of two components. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to the specific circumstances. The features described in one embodiment herein may be applied to another embodiment alone or in combination with other features, unless the feature is not applicable in the other embodiment or otherwise specified.

[0033] The following combination Figure 1-Figure 7 A circuit board mounting mechanism provided in an embodiment of the present application is introduced, which is used for the transfer and fixation of a circuit board in an electrical appliance housing. The internal space of the electrical appliance housing 6 in this embodiment is relatively small, and a protruding motherboard button is provided on the side of the circuit board facing the side wall of the housing, so that the circuit board cannot be vertically installed in the electrical appliance housing. The circuit board mounting mechanism provided in this embodiment, by changing the installation method of the circuit board, allows the circuit board to be assembled in a small space, thereby improving the assembly efficiency and not affecting the overall aesthetics and portability of the electronic device.

[0034] This embodiment provides a circuit board mounting mechanism, such as Figure 1 As shown, it includes a bracket assembly 1 and a circuit board 2. The bracket assembly 1 is arranged in an electrical housing 6. The bracket assembly 1 is used to engage with the circuit board 2. The bracket assembly 1 can provide guidance for the up and down movement of the circuit board 2 and can limit the forward and backward movement of the circuit board 2. In this embodiment, the circuit board 2 moves up and down along the bracket assembly 1, that is, moves in the vertical direction; the circuit board 2 moves in the forward and backward direction, that is, moves in a direction perpendicular to the circuit board 2.

[0035] like Figure 2 As shown, the bracket assembly 1 includes a first limiting structure 11 attached to the shell side wall 61 and a second limiting structure 12 protruding from the shell side wall 61. The second limiting structure 12 includes a first limiting surface 121 and a second limiting surface 122 which are perpendicular to each other. A guide groove 3 is formed between the first limiting surface 121, the second limiting surface 122 and the first limiting structure 11 to guide the up and down movement of the circuit board 2. A limiting block 123 is provided at one end of the second limiting surface 122 which contacts the shell bottom wall 62. The second limiting surface 122 is connected to the limiting block 123 to form a channel for the circuit board 2 to move forward and backward.

[0036] In a possible implementation, the first limiting structure 11 may be a planar structure integrally formed with the housing side wall 61, the first limiting structure 11 and the second limiting surface 122 are the side surfaces of the guide groove 3, and the first limiting surface 121 is the bottom surface of the guide groove 3. By designing the first limiting structure 11 as a planar structure integrally formed with the housing side wall 61 and combining it with the side surface of the guide groove 3, the problem of interference between the circuit board 2 and the arc-shaped housing side wall 61 during installation is effectively avoided, so that the circuit board 2 can be installed more smoothly and quickly, thereby significantly improving the installation efficiency and installation stability.

[0037] The circuit board 2 includes a first connecting portion 21 and a second connecting portion 22 which are perpendicular to each other. The first connecting portion 21 matches with the guide groove 3 . When the circuit board 2 and the bracket assembly 1 are installed, the second connecting portion 22 contacts with the limit block 123 .

[0038] Specifically, the mounting mechanism includes a pair of bracket assemblies 1 symmetrically arranged on both sides of the circuit board 2, and the circuit board 2 is clamped with the bracket assembly 1. In this embodiment, the second limiting surface 122 of the bracket assembly 1 and the limiting block 123 are integrally formed into an L-shaped structure, so that the circuit board 2 can enter the bracket assembly 1 from the front-to-back direction along the channel formed between the L-shaped structures of the pair of bracket assemblies 1 until the guide groove 3 of the bracket assembly 1 is opposite to the first connecting portion 21; then, the circuit board 2 moves downward along the length direction of the guide groove 3 until it contacts the bottom wall 62 of the shell; at this time, the two side walls of the guide groove 3 and the limiting block 123 limit the displacement of the circuit board 2 in the front-to-back direction.

[0039] A guide groove 3 is formed between the first limiting structure 11 and the second limiting structure 12 of the bracket assembly 1 of the embodiment of the present application, and the second limiting surface 122 of the second limiting structure 12 is connected to the limiting block 123 to form a channel for the forward and backward movement of the circuit board 2, providing sufficient space for the forward and backward movement of the circuit board, so that the circuit board 2 can enter and move out along the front and rear direction of the bracket assembly 1, and can move up and down along the guide groove 3, thereby solving the problem of assembling the circuit board 2 in a narrow space and interfering with the mainboard button 23 with the shell side wall 61.

[0040] In a possible implementation, the first connection portion 21 protrudes from the side of the circuit board 2 and is perpendicular to the second connection portion 22. In the embodiment of the present application, the first connection portion 21 and the second connection portion 22 are integrally formed in a T-shape, and the two side edges of the circuit board 2 are respectively matched with the L-shaped structure formed by connecting the second limiting surface 122 and the limiting block 123 of the corresponding bracket assembly 1, so that the circuit board 2 can smoothly enter and move out of the bracket assembly 1 from the front and rear directions.

[0041] Furthermore, if Figure 3 As shown, the width of the first connection portion 21 is W2, and the width of the second limiting surface 122 is W1, W2>W1. The first connection portion 21 can slide along the guide groove 3 and stabilize therein; the length of the second connection portion 22 is H2, and the distance from the top of the first limiting surface 121 to the limiting block 123 is H1, H2

[0042] Furthermore, a guide structure 124 connected to the first limiting structure 11 is provided at the upper end of the first limiting surface 121, and the guide structure 124 is coplanar with the first limiting surface 121. The guide structure 124 is used to guide the circuit board 2 to be inserted into the bracket assembly 1 from above the guide groove 3. In a possible embodiment, a guide slope structure is further provided at the top edge of the guide structure 124 to better guide the circuit board 2.

[0043] Furthermore, the top edges of the second limiting surface 122 and the limiting block 123 are both provided with guiding inclined surfaces 4 to reduce the friction and resistance of the circuit board 2 when entering and moving out of the bracket assembly 1 .

[0044] ​Furthermore, the limit block 123 is a protrusion or step structure that protrudes from the second limit surface 122 and extends toward one end away from the first limit surface 121. In some possible embodiments, the height of the limit block 123 is less than the height of the second limit surface 122. When the circuit board 2 is engaged with the bracket assembly 1, the limit block 123 contacts the circuit board 2, making it difficult for the circuit board 2 to shake or shift in the front and rear directions. The design of the limit block 123 also provides a guiding function for the circuit board 2 to enter the bracket assembly 1 from the front and rear directions, so that the circuit board 2 can sense the correct insertion direction and position through contact with the limit block 123 during the movement, thereby reducing errors or misoperations during installation.

[0045] In the present application embodiment, Figure 4 and 5 As shown, at least one mainboard button 23 is provided on the side of the circuit board 2 facing the housing side wall 61. The mainboard button 23 protrudes from the surface of the circuit board 2. When the circuit board 2 is inserted into the bracket assembly 1 along the front-to-back direction of the bracket assembly 1, the mainboard button 23 cooperates with the button hole 64 provided on the housing side wall 61. The mainboard button 23 is used to control the corresponding function of the electronic device. The matching size and position of the mainboard button 23 and the button hole 64 on the housing side wall 61 enable the circuit board 2 to achieve a compact structural layout when inserted into the bracket assembly 1, reduce space occupation, and facilitate the miniaturization and lightweight design of the product. In a possible embodiment, three mainboard buttons 23 are provided on the side of the circuit board 2 facing the housing side wall 61.

[0046] Furthermore, at least one positioning structure 24 is provided on the bottom edge of the circuit board 2 along its length direction, and at least one positioning matching structure 5 matching with the positioning structure 24 is provided on the bottom wall 62 of the housing.

[0047] In one possible embodiment, the positioning structure 24 is configured as a groove-shaped structure, and the positioning matching structure 5 is a strip-shaped protrusion matching with the groove-shaped structure; in another possible embodiment, the positioning structure 24 can be a protrusion structure arranged on the bottom edge of the circuit board 2, and the positioning matching structure 5 is a slot structure matching with the protrusion structure.

[0048] In this embodiment, the positioning structure 24 cooperates with the positioning matching structure 5 to limit the movement of the circuit board in a direction perpendicular to the length of the guide groove 3, and the positioning matching structure 5 is fixedly connected to or integrally formed with the bottom wall 62 of the housing. In a possible implementation, a plurality of positioning matching structures 5 can be arranged on the bottom wall 62 of the housing in an equidistant manner, or can be arranged on the bottom wall 62 of the housing in an unequally spaced manner. The matching design of the positioning structure 24 and the positioning matching structure 5 can ensure the precise positioning of the circuit board 2 during the insertion process, enhance the stability of the circuit board 2 inside the housing of the electrical appliance, and reduce the risk of loosening or damage of the circuit board due to vibration or external force.

[0049] Furthermore, both ends of the circuit board 2 are provided with a chamfer structure 8, so that the size and shape of the circuit board 2 match the electrical housing 6, reduce the space occupied by the circuit board 2, and avoid interference between the end corners of the circuit board and the electrical housing 6 during the assembly process. In some possible embodiments, the chamfer structure 8 includes but is not limited to right-angle chamfers, rounded chamfers, and bevel chamfers.

[0050] In this embodiment, the lower end of the circuit board 2 is also provided with a wiring terminal, and the bottom wall 62 of the shell is provided with a terminal receiving groove that matches the wiring terminal. After the circuit board 2 and the bracket assembly 1 are installed, the wiring terminal is inserted into the terminal receiving groove, and the bottom surface of the circuit board 2 contacts the bottom wall 62 of the shell.

[0051] The present application also provides an electronic device, including an electrical housing 6 and the above-mentioned circuit board mounting mechanism. Figure 6 As shown, a button accommodating area 63 is provided on the shell side wall 61 of the electrical shell 6, and a button hole 64 is provided in the button accommodating area 63; when the circuit board 2 is inserted into the bracket assembly 1 along the front-to-back direction of the bracket assembly 1, the mainboard button 23 is aligned with the button hole 64 set in the button accommodating area 63.

[0052] Furthermore, a protective shell 7 is provided on the outer side of the electrical housing 6, and a button protrusion 71 is provided on the inner side of the protective shell 7. The button protrusion 71 cooperates with the button hole 64. When the circuit board 2 and the bracket assembly 1 are installed, the button protrusion 71 corresponds to the position of the mainboard button 23. By pressing the corresponding position on the protective shell 7, the button protrusion 71 contacts the mainboard button 23.

[0053] The steps of installing a circuit board of an electronic device in this embodiment are as follows: Figure 4 and 5 As shown, first move the circuit board 2 from the front-to-back direction so that the mainboard button 23 cooperates with the button accommodating area 63, and the first connecting portion 21 cooperates with the guide groove 3; then, press the circuit board downward along the length direction of the guide groove 3; during the pressing process, pay attention to aligning the positioning structure 24 at the bottom edge of the circuit board with the positioning and matching structure 5 until the circuit board 2 contacts the bottom wall 62 of the shell; after installation, the two side walls of the guide groove 3 and the limit block 123 limit the displacement of the circuit board 2 in the front-to-back direction, and the position of the mainboard button 23 corresponds to the position of the button protrusion 71.

[0054] The present application optimizes the installation process of the circuit board by improving the circuit board installation mechanism, solves the interference problem when assembling the circuit board in a small space, improves the assembly efficiency, reduces the production cost, and at the same time ensures the stability and aesthetics of the electronic equipment. It has important practical value and broad application prospects.

[0055] Obviously, the embodiments described above are only embodiments of a part of the embodiments of this specification, rather than all embodiments. Based on the embodiments in the embodiments of this specification, ordinary technicians in this field can make other different forms of changes or modifications without making creative work, which should all fall within the scope of protection of the embodiments of this specification.

[0056] Those skilled in the art will readily appreciate other embodiments of the embodiments of the present specification after considering the specification and practicing the embodiments disclosed herein. The present specification is intended to cover any variations, uses, or adaptations of the embodiments of the present specification, which follow the general principles of the embodiments of the present specification and include common knowledge or customary technical means in the art that are not disclosed in the embodiments of the present specification. The description and embodiments are to be considered merely as exemplary, and the true scope and spirit of the embodiments of the present specification are indicated by the following claims.

[0057] It should be understood that the embodiments of the present specification are not limited to the precise structures described above and shown in the drawings, and various modifications and changes may be made without departing from the scope thereof. The scope of the embodiments of the present specification is limited only by the appended claims.

Claims

1. A circuit board mounting mechanism, characterized in that: It comprises a bracket assembly (1) and a circuit board (2), wherein the bracket assembly (1) is arranged in an electrical appliance housing (6); The bracket assembly (1) comprises a first limiting structure (11) attached to a shell side wall (61) and a second limiting structure (12) protruding from the shell side wall (61); the first limiting structure (11) is a planar structure integrally formed with the shell side wall (61); the second limiting structure (12) comprises a first limiting surface (121) and a second limiting surface (122) perpendicular to each other; a guide groove (3) is formed between the first limiting surface (121), the second limiting surface (122) and the first limiting structure (11) for guiding the upward and downward movement of the circuit board (2); a limiting block (123) is provided at one end of the second limiting surface (122) that contacts the shell bottom wall (62); the second limiting surface (122) and the limiting block (123) are connected to form a channel for the forward and backward movement of the circuit board (2); The circuit board (2) comprises a first connecting portion (21) and a second connecting portion (22), the first connecting portion (21) being matched with the guide groove (3); when the circuit board (2) and the bracket assembly (1) are installed, the second connecting portion (22) is in contact with the limit block (123), the second limit surface (122) is connected with the limit block (123) to form an L-shaped structure, and the L-shaped structure is matched with two side edges of the circuit board (2).

2. A circuit board mounting mechanism according to claim 1, characterized in that: The first connecting portion (21) protrudes from a side of the circuit board (2) and is perpendicular to the second connecting portion (22).

3. A circuit board mounting mechanism according to claim 2, characterized in that: The width of the first connection portion (21) is W2, the width of the second limiting surface (122) is W1, W2>W1; the length of the second connection portion (22) is H2, the distance from the top of the first limiting surface (121) to the limiting block (123) is H1, H2<H1.

4. A circuit board mounting mechanism according to claim 1, characterized in that: A guide structure (124) connected to the first limiting structure (11) is provided at the upper end of the first limiting surface (121); the guide structure (124) is coplanar with the first limiting surface (121).

5. A circuit board mounting mechanism according to claim 1, characterized in that: The top edges of the second limiting surface (122) and the limiting block (123) are both provided with guiding inclined surfaces (4).

6. A circuit board mounting mechanism according to claim 1, characterized in that: The limiting block (123) is a protrusion or a step structure that protrudes from the second limiting surface (122) and extends towards an end away from the first limiting surface (121).

7. A circuit board mounting mechanism according to claim 1, characterized in that: At least one mainboard button (23) is provided on a side of the circuit board (2) facing the shell side wall (61); when the circuit board (2) is inserted into the bracket assembly (1) along the front-rear direction of the bracket assembly (1), the mainboard button (23) cooperates with a button hole (64) provided on the shell side wall (61).

8. A circuit board mounting mechanism according to claim 1, characterized in that: At least one positioning structure (24) is provided on the bottom edge of the circuit board (2) along its length direction, and at least one positioning matching structure (5) matching with the positioning structure (24) is provided on the bottom wall (62) of the housing.

9. An electronic device, characterized in that: It comprises an electrical housing (6) and a circuit board mounting mechanism according to any one of claims 1 to 8, wherein a button accommodating area (63) is provided on a housing side wall (61) of the electrical housing (6), and a button hole (64) is provided in the button accommodating area (63); When the circuit board (2) is inserted into the bracket assembly (1) along the front-rear direction of the bracket assembly (1), the mainboard button (23) corresponds to the button hole (64) in position.

10. An electronic device according to claim 9, characterized in that: A protective shell (7) is provided on the outer side of the electrical appliance housing (6), and a button protrusion (71) is provided on the inner side of the protective shell (7), wherein the button protrusion (71) is used to contact the mainboard button (23).

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