A circuit board assembly and an electronic device

Abstract

The specification provides a circuit board assembly and an electronic device, and relates to the technical field of electronics. A circuit board assembly comprises: a circuit board, on which an electrical component is disposed; a device protection cover, covering the electrical component and fixed to the circuit board; the device protection cover comprises: a cover body, on which a window is provided; a cover plate, provided on the window and covering the electrical component, a plate body of the cover plate is formed with a fixing portion near an edge side of the device protection cover, the plate body of the cover plate is formed with an extension portion near an edge side of the window and the cover body, the extension portion extends into and abuts between the circuit board and the cover body; a fixing nail, penetrating through the fixing portion, fixing the cover plate to the circuit board; wherein a containing cavity is formed between the fixing portion, the extension portion and the plate body, and the containing cavity corresponds to the covered electrical component. Through the above structure, the reliability and maintainability of the electronic device can be improved.

Description

Technical Field

[0001] This specification relates to the field of electronic technology, and in particular to a circuit board assembly and an electronic device. Background Technology

[0002] With the development of electronic technology, the structure of circuit boards in electronic devices has become increasingly complex. Each circuit board contains electrical components, and the connection between circuit boards needs to be achieved through cables or connectors.

[0003] Because some electrical components are relatively fragile and can be easily damaged by accidental contact during transportation or handling, and because electronic equipment requires maintenance, how to make circuits containing electrical components both reliable and maintainable is a problem that urgently needs to be solved by those skilled in the art. Summary of the Invention

[0004] To overcome the problems existing in the related technologies, this specification provides a circuit board assembly and an electronic device.

[0005] According to a first aspect of the embodiments of this specification, a circuit board assembly is provided, comprising:

[0006] A circuit board on which electrical components are disposed;

[0007] A device protective cover covers the electrical components and is fixed to the circuit board;

[0008] The device protective cover includes:

[0009] A cover, on which windows are provided;

[0010] A cover plate is disposed at the opening and covers the electrical component. A fixing part is formed on the side of the cover plate near the edge of the device protective cover. An extension part is formed on the side of the cover plate near the edge of the opening and the cover. The extension part extends into and abuts between the circuit board and the cover.

[0011] A fixing pin passes through the fixing part to fix the cover plate to the circuit board;

[0012] A receiving cavity is formed between the fixing part, the extension part and the plate body, and the receiving cavity corresponds to the electrical component being covered.

[0013] Optionally, a first through hole is provided in the fixing part, and a second through hole opposite to the first through hole is provided on the circuit board;

[0014] The device protective cover also includes:

[0015] An expansion column, which is fixed to the first through hole and passes through the second through hole;

[0016] When the fixing pin is inserted into the expansion column, the expansion column expands and presses against the circuit board, fixing the cover plate to the circuit board. When the fixing pin is pulled out of the expansion column, the expansion column contracts, releasing the cover plate from the circuit board.

[0017] Optionally, the fixing pin is a plastic pin.

[0018] Optionally, the extension includes:

[0019] The first segment extends obliquely from the edge of the plate towards the side away from the cover; and,

[0020] The second segment extends from the edge of the first segment toward the side closer to the cover.

[0021] Wherein, the first segment and the second segment are joined at a position lower than the plate body, and the far end of the second segment is closer to the cover body side relative to the plate body.

[0022] Optionally, the junction of the first segment and the second segment forms an arc-shaped transition section facing the circuit board.

[0023] Optionally, the window is located on one side of the cover, and the corner of the cover is connected to the circuit board.

[0024] Optionally, the circuit board assembly further includes:

[0025] The panel is fixed to the front side of the circuit board.

[0026] Optionally, gold fingers are formed on the rear side of the circuit board.

[0027] Optionally, ribs are formed on both sides of the circuit board where the fixing part and the extension part are not formed, and the ribs, the edge of the fixing part and the edge of the extension part form the receiving cavity.

[0028] According to a second aspect of the embodiments of this specification, an electronic device is provided, comprising:

[0029] Box; and,

[0030] The circuit board assembly described in any of the above.

[0031] The technical solutions provided in the embodiments of this specification may include the following beneficial effects:

[0032] In the embodiments of this specification, a device protective cover is formed on a circuit board. The protective cover has a housing fixed to the circuit board and a cover plate with an opening in the housing. The cover plate forms a receiving cavity. When the cover plate is placed between the circuit board and the housing, the receiving cavity accommodates electrical components. When maintenance of the electrical components is required, the cover plate can be removed to expose the electrical components, thereby achieving protection of the electrical components on the circuit board and improving the reliability and maintainability of the electronic equipment.

[0033] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and are not intended to limit this specification. Attached Figure Description

[0034] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this specification and, together with the description, serve to explain the principles of this specification.

[0035] Figure 1 This is a schematic diagram of a circuit board assembly involved in this application, wherein the cover plate is not fixed and the electrical components are exposed;

[0036] Figure 2 This is a schematic diagram of a circuit board assembly involved in this application, wherein the cover plate is fixed and the electrical components are shielded;

[0037] Figure 3 This is a schematic diagram of the structure of a cover plate in a circuit board assembly according to this application;

[0038] Figure 4 This is a side cross-sectional schematic diagram of a circuit board assembly involved in this application. Detailed Implementation

[0039] Exemplary embodiments will now be described in detail, examples of which are illustrated in the accompanying drawings. When the following description relates to the drawings, unless otherwise indicated, the same numerals in different drawings denote the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this specification. Rather, they are merely examples of apparatuses and methods consistent with some aspects of this specification as detailed in the appended claims.

[0040] The terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to be limiting of this specification. The singular forms “a,” “the,” and “the” as used in this specification and the appended claims are also intended to include the plural forms unless the context clearly indicates otherwise. It should also be understood that the term “and / or” as used herein refers to and includes any and all possible combinations of one or more of the associated listed items.

[0041] It should be understood that although the terms first, second, third, etc., may be used in this specification to describe various information, this information should not be limited to these terms. These terms are only used to distinguish information of the same type from one another. For example, without departing from the scope of this specification, first information may also be referred to as second information, and similarly, second information may also be referred to as first information. Depending on the context, the word "if" as used herein may be interpreted as "when," "when," or "in response to determination."

[0042] This application provides a circuit board assembly 100, such as Figure 1 As shown, it includes:

[0043] Circuit board 1, on which electrical components 10 are disposed;

[0044] Device protective cover 2 covers the electrical component 10 and is fixed to the circuit board 1;

[0045] The device protective cover 2 includes:

[0046] The cover 20 has a window 21 provided on it;

[0047] A cover plate 22 is disposed on the opening 21 and covers the electrical component 10. A fixing part 22B is formed on the side of the plate body 22A of the cover plate 22 near the edge of the device protective cover 2. An extension part 22C is formed on the side of the plate body 22A of the cover plate 22 near the edge of the opening 21 and the cover body 20. The extension part 22C extends into and abuts between the circuit board 1 and the cover body 20.

[0048] The fixing nail 3 passes through the fixing part 22B and fixes the cover plate 22 to the circuit board 1;

[0049] A receiving cavity 22D is formed between the fixing part 22B, the extension part 22C and the plate body 22A, and the receiving cavity 22D corresponds to the electrical component 10 that is covered.

[0050] Several electrical components 10 can be installed on the circuit board 1, and the opening 21 of the cover 20 corresponds to the electrical components 10 that need to be protected. The fixing part 22B and the extension part 22C can be closer to the circuit board 1 relative to the cover plate 22, so that the receiving cavity 22D of the cover plate 22 facing the circuit board 1 can wrap the electrical components 10 on the circuit board 1.

[0051] like Figure 2As shown, after the cover 20 is fixed to the circuit board 1, the extension 22C of the cover plate 22 can be inserted between the cover 20 and the circuit board 1. The receiving cavity 22D covers the electrical component 10, and the cover plate 22 is fixed to the circuit board 1 by the fixing pin 3 passing through the fixing part 22B, thus protecting the electrical component 10 on the circuit board 1. The fixing part 22B and the fixing pin 3 can be screwed, snapped, or expanded, etc., and can be set according to actual needs without limitation.

[0052] Optional, such as Figure 3 As shown, raised ribs 23 are formed on both sides of the circuit board 1 where the fixing part 22B and the extension part 22C are not formed. These ribs, along with the edges of the fixing part 22B and the extension part 22C, form the receiving cavity 22D. This structure, which encloses the receiving cavity 22D, provides better sealing for the cover plate 22, further enhancing dustproof performance in addition to protecting the electrical component 10.

[0053] To improve the maintenance efficiency of electronic equipment, optional measures include, for example... Figure 1 , 3 As shown, a first through hole 22E is provided in the fixing part 22B, and a second through hole 11 opposite to the first through hole 22E is provided on the circuit board 1;

[0054] The device protective cover 2 also includes:

[0055] An expansion column 24 is fixed to the first through hole 22E and passes through the second through hole 11. The expansion column 24 can expand outward when it is subjected to internal pressure. For example, the expansion column 24 has several side walls with an opening between them. When it is subjected to internal pressure, the side walls expand outward to form an expansion effect. The interior of the expansion column 24, which is enclosed by the side walls and accommodates the fixing nail 3, is exposed towards the first through hole 22E.

[0056] When the fixing pin 3 is inserted into the expansion column 24, the expansion column 24 expands and presses against the circuit board 1, fixing the cover plate 22 to the circuit board 1. When the fixing pin 3 is pulled out of the expansion column 24, the expansion column 24 contracts, releasing the fixation between the cover plate 22 and the circuit board 1.

[0057] After the extension 22C of the cover plate 22 is inserted between the circuit board 1 and the cover 20, the fixing part 22B is pressed down to rotate it downwards, and the expansion column 24 is inserted into the second through hole 11. At this time, the fixing pin 3 can be pushed into the expansion column 24 from the side of the first through hole 22E. Under the action of the fixing pin 3, the side wall of the expansion column 24 expands in all directions, thereby locking the circuit board 1 in the second through hole 11, thus fixing the cover plate 22.

[0058] When maintenance of electrical component 10 is required, the retaining pin 3 is removed from the expansion column 24. The expansion column 24, deprived of the pressure from the retaining pin 3, contracts inward and can be removed from the second through hole 11. After the cover plate 22 is removed, the electrical component 10 is exposed at the opening 21 for maintenance.

[0059] Specifically, the fixing pin 3 is a plastic pin. The plastic pin and the expansion column 24 can have greater friction, thereby making the cover plate 22 more securely fixed. In addition, the plastic pin can reduce the sharp structure, avoiding damage to the expansion column 24 and the circuit board 1 when the fixing pin 3 is pushed in or pulled out, thereby further improving the reliability of the electronic device.

[0060] Optional, such as Figure 3 , 4 As shown, the extension 22C includes:

[0061] The first segment 25A extends obliquely from the edge of the plate 22A toward the side away from the cover 20; and,

[0062] The second segment 25B extends from the edge of the first segment 25A toward the side closer to the cover 20, that is, the first segment 25A and the second segment 25B form a near-L shape;

[0063] Wherein, the first segment 25A and the second segment 25B are connected at a position lower than the plate 22A, and the far end of the second segment 25B is closer to the cover 20 side relative to the plate 22A.

[0064] The first segment 25A and the second segment 25B form an angle, and their connection point is lower than that of the board 22A, that is, closer to the circuit board 1 relative to the board 22A. The far end of the second segment 25B, that is, the end away from the board 22A, is closer to the cover 20 relative to the board 22A.

[0065] After the cover 20 is fixed to the circuit board 1, as Figure 4As shown, a gap 26 is formed between the cover 20 and the circuit board 1, and the extension 22C can be inserted into the gap 26. At this time, the contact point is abutted against the circuit board 1, the distal end of the second segment 25B abuts against the cover 20, and the fixing part 22B of the cover plate 22 is in a raised state. After applying force to the fixing part 22B, the angle between the second segment 25B and the first segment 25A increases under the force, based on the elastic force between the first segment 25A and the second segment 25B, and the first segment 25A and the second segment 25B tend to be parallel. The fixing part 22B moves closer to the circuit board 1 to achieve fixation to the circuit board 1 through the fixing part 22B.

[0066] Optionally, the junction of the first segment 25A and the second segment 25B is formed with an arc-shaped transition segment 25C facing the circuit board 1.

[0067] Since the first segment 25A and the second segment 25B will come into contact with the circuit board 1, if the contact point has a sharp angle, it may scratch the circuit board 1. Therefore, the contact point can be set as an arc-shaped transition segment 25C to prevent the extension 22C from scratching the circuit board 1 when the cover plate 22 is inserted into the circuit board 1 and the cover 20 and force is applied, thereby further improving the reliability of the electronic device.

[0068] Optional, such as Figure 1 As shown, the window 21 is located on one side of the cover 20, and the corner 20A of the cover 20 is connected to the circuit board 1.

[0069] The specific connection methods can be screwing or riveting. The opening 21 can extend to the edge of the cover 20 or be set in the middle of the cover 20, depending on actual needs. When set at the edge, the fixing nail 3 on the fixing part 22B can pass through the fixing part 22B and the circuit board 1 with a shorter distance, improving the stability of the connection between the two.

[0070] Optionally, the circuit board assembly 100, such as Figure 1 As shown, it also includes:

[0071] Panel 4 is fixed to the front side of the circuit board 1, thereby forming the circuit board assembly 100 into the form of a plug-in module.

[0072] Optionally, gold fingers 5 are formed on the rear side of the circuit board 1, so that the circuit board assembly 100 and the connector 6 at the rear of the electronic device can be connected by a push-in operation.

[0073] Correspondingly, this application also provides an electronic device, including:

[0074] Box; and,

[0075] The circuit board assembly 100 described in any of the above claims.

[0076] The technical solutions provided in the embodiments of this specification may include the following beneficial effects:

[0077] In the embodiments of this specification, a device protective cover is formed on a circuit board. The protective cover has a housing fixed to the circuit board and a cover plate with an opening in the housing. The cover plate forms a receiving cavity. When the cover plate is placed between the circuit board and the housing, the receiving cavity accommodates electrical components. When maintenance of the electrical components is required, the cover plate can be removed to expose the electrical components, thereby achieving protection of the electrical components on the circuit board and improving the reliability and maintainability of the electronic equipment.

[0078] Other embodiments of this specification will readily occur to those skilled in the art upon consideration of the specification and practice of the invention claimed herein. This specification is intended to cover any variations, uses, or adaptations that follow the general principles of this specification and include common knowledge or customary techniques in the art not claimed herein. The specification and examples are to be considered exemplary only, and the true scope and spirit of this specification are indicated by the following claims.

[0079] It should be understood that this specification is not limited to the precise structures described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from its scope. The scope of this specification is limited only by the appended claims.

[0080] The above description is merely a preferred embodiment of this specification and is not intended to limit this specification. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this specification should be included within the scope of protection of this specification.

Claims

1. A circuit board assembly, characterized in that, include: A circuit board on which electrical components are disposed; A device protective cover covers the electrical components and is fixed to the circuit board; The device protective cover includes: A cover, on which windows are provided; A cover plate is disposed at the opening and covers the electrical component. A fixing part is formed on the side of the cover plate near the edge of the device protective cover. An extension part is formed on the side of the cover plate near the edge of the opening and the cover. The extension part extends into and abuts between the circuit board and the cover. A fixing pin passes through the fixing part to fix the cover plate to the circuit board; A receiving cavity is formed between the fixing part, the extension part and the plate body, and the receiving cavity corresponds to the electrical component being covered.

2. The circuit board assembly according to claim 1, characterized in that, A first through hole is provided in the fixing part, and a second through hole opposite to the first through hole is provided on the circuit board; The device protective cover also includes: An expansion column, which is fixed to the first through hole and passes through the second through hole; When the fixing pin is inserted into the expansion column, the expansion column expands and presses against the circuit board, fixing the cover plate to the circuit board. When the fixing pin is pulled out of the expansion column, the expansion column contracts, releasing the cover plate from the circuit board.

3. The circuit board assembly according to claim 2, characterized in that, The fixing pin is a plastic pin.

4. The circuit board assembly according to claim 1, characterized in that, The extension includes: The first segment extends obliquely from the edge of the plate towards the side away from the cover; and, The second segment extends from the edge of the first segment toward the side closer to the cover. Wherein, the first segment and the second segment are joined at a position lower than the plate body, and the far end of the second segment is closer to the cover body side relative to the plate body.

5. The circuit board assembly according to claim 4, characterized in that, The junction of the first segment and the second segment forms an arc-shaped transition section that faces the circuit board.

6. The circuit board assembly according to claim 1, characterized in that, The window is located on one side of the cover, and the corner of the cover is connected to the circuit board.

7. The circuit board assembly according to claim 1, characterized in that, The circuit board assembly further includes: The panel is fixed to the front side of the circuit board.

8. The circuit board assembly according to claim 1, characterized in that, Gold fingers are formed on the rear side of the circuit board.

9. The circuit board assembly according to claim 1, characterized in that, Raised ribs are formed on both sides of the circuit board where no fixing part or extension is formed, and the raised ribs, the edge of the fixing part and the edge of the extension form the receiving cavity.

10. An electronic device, characterized in that, include: Box; and, The circuit board assembly according to any one of claims 1-9.

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