Board-level shielding power supply structure

Abstract

The utility model discloses a board level shielding power supply structure, which comprises a base, a power supply board and an upper cover, the base is provided with a first through hole and a second through hole, the second through hole is arranged along the base around the first through hole, one end of the power supply board is fixed on the base, and the other end of the power supply board penetrates through the mounting through hole. Third through holes corresponding to the second through holes in position and number are formed in the power panel, and the upper cover is fixed to the base so that the power panel can be arranged in a cavity of the upper cover. The utility model has the advantages that only the power supply module is isolated through the upper cover, so that the influence of electromagnetic wave radiation of the power supply module on other equipment and other devices of the equipment can be solved, the shielding requirement is met, the size is small, the weight is light, and the size and the weight of the equipment cannot be increased; in addition, the structure is simple and easy to disassemble, assemble and maintain.

Description

TECHNICAL FIELD

[0001] The utility model relates to power module technical field, concretely is a kind of board level shielding power structure. BACKGROUND

[0002] Power module as power conversion device on electronic equipment, provide the power supply of required voltage grade for electronic equipment, also can produce a large amount of electromagnetic wave in the process of working, radiation influences normal operation of itself or other equipment, to suppress electromagnetic radiation, usually there are two methods: one is to make the device itself into sealed cavity;Two is to make several sealed cavities inside the device, separate the emission source and other devices susceptible to electromagnetic wave, or directly with shielding cover the board level where emission source is covered, form sealed cavity, shield electromagnetic wave.

[0003] But from actual performance, the first method device will not emit electromagnetic wave radiation to other devices, thereby affecting other devices, but internal emission source can influence the work of other devices inside the device;The second method can solve the influence of electromagnetic wave radiation on other devices and other devices inside the device by setting multiple sealed cavities or shielding covers inside, but invisibly increase the volume and weight of the device, which has greater influence in some places sensitive to volume and weight. SUMMARY

[0004] The technical problem to be solved by the utility model lies in how to provide a shielding power structure with small volume, light weight and meeting shielding requirements.

[0005] To solve the above technical problems, the utility model provides the following technical scheme:

[0006] A kind of board level shielding power structure, including base, power board, upper cover, the first through hole and second through hole are set in the base, the second through hole is along the first through hole periphery base setting, one end of the power board is fixed on the base, one end is penetrated and installed through hole, the third through hole corresponding with the position and quantity of second through hole is set on the power board, the upper cover is fixed on the base so that the power board is set in the cavity of upper cover.

[0007] Through the upper cover, only power module is isolated, not only can solve the influence of electromagnetic wave radiation of power module on other equipment and other devices of the device itself, meet shielding requirements, and small volume, light weight, will not increase the volume and weight of the device itself;In addition, the structure is simple, easy to disassemble and maintain.

[0008] Preferably, the power panel is fixed on the base through a fastening device; the fastening device comprises a fastening bolt, a fastening nut and a first fastening screw, a bolt head of the fastening bolt is provided with a threaded hole, four corner ends of the base and the power panel are respectively provided with first fixing through holes and second fixing through holes, a shank of the fastening bolt is in threaded connection with the fastening nut through the first fixing through hole, and the power panel is in threaded connection with the bolt head of the corresponding fastening bolt through the first fastening screw and the two opposite second fixing through holes of the power panel.

[0009] Preferably, the power panel comprises a power panel body and a lip, the power panel body is provided with the lip around, and a third through hole is arranged on the lip.

[0010] Preferably, two corner ends of the upper cover are provided with third fixing through holes corresponding to positions of the fastening bolts not connected with the first fastening screw, and the upper cover is in threaded connection with the bolt head of the corresponding fastening bolt through the second fastening screw and the third fixing through hole and the second fixing through hole in sequence.

[0011] Preferably, the base, the power panel and the upper cover are in rectangular shape.

[0012] Compared with the prior art, the power panel has the beneficial effects that:

[0013] The upper cover only isolates the power module, so that the influence of electromagnetic wave radiation of the power module on other devices and other components of the device itself can be solved, the shielding requirement is met, the volume and the weight are small, and the volume and the weight of the device are not increased; in addition, the structure is simple, and the device is easy to disassemble, maintain and repair. BRIEF DESCRIPTION OF DRAWINGS

[0014] Fig. 1 It is an explosion schematic view of the embodiment of the utility model;

[0015] Fig. 2 It is an installation structure schematic view of the embodiment of the utility model;

[0016] Fig. 3 It is a front view of the embodiment of the utility model after installation. DETAILED DESCRIPTION

[0017] In order to facilitate the technical personnel in the art to understand the technical scheme of the utility model, the technical scheme of the utility model is further described in connection with the drawings of the specification.

[0018] In the present application, unless specifically defined and limited otherwise, the terms "mounting", "connected", "connection", "fixed", and the like, should be interpreted broadly, for example, can be fixed connection, can also be detachable connection, or integral; can be mechanical connection, can also be electrical connection, and can also be communication; can be directly connected, can also be indirectly connected through an intermediate medium, can be the internal communication of two elements or the interaction relationship of two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0019] In the present application, unless specifically defined and limited otherwise, the terms "first", "second" are only for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first", "second" can explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "multiple" is two or more, unless specifically defined and limited otherwise.

[0020] Reference Figs. 1 to 3 The embodiment discloses a kind of board level shielding power supply structure, including base 1, power board 2, upper cover 3, in the embodiment, the base 1, power board 2, upper cover 3 All are rectangular shape.

[0021] First through hole 101 and second through hole 102 are arranged on the base 1, the second through hole 102 is arranged along the periphery of the first through hole 101, one end of the power board 2 is fixed on the base 1, and one end penetrates the mounting through hole 101, the power board 2 is used to install power module, the power board 2 is provided with third through hole (not marked in the figure) corresponding to the position and number of the second through hole 102, the second through hole 102 and the third through hole are arranged to be fed through, and the circuit of the power module on the power board 2 is led out through the feedthrough; The upper cover 3 is fixed on the base 1, so that the power board 2 is arranged in the cavity of the upper cover 3, and then the power module is arranged in the cavity of the upper cover 3, in the embodiment, the power module is only isolated by the upper cover 3, which can not only solve the influence of electromagnetic wave radiation of the power module on other devices and other devices of the device itself, meet the shielding requirement, and the volume and weight of the device are not increased. In addition, the structure is simple, easy to disassemble and maintain.

[0022] The power board 2 includes a power board body 21 and a lip 22, the power board body 21 is provided with a lip 22 around, one end of the power board 2 away from the lip 22 penetrates the mounting through hole 101, and the third through hole is arranged on the lip 22.

[0023] The power board 2 is fixed on the base 1 by a fastening device; specifically, the fastening device comprises a fastening bolt 4, a fastening nut 5 and a first fastening screw 6, the head of the fastening bolt 4 is provided with a threaded hole, the base 1 and the power board 2 are respectively provided with a first fixing through hole 103 and a second fixing through hole 201 at four corner ends along the rim 22, the threaded hole of the head of the fastening bolt 4 is threadedly connected with the fastening nut 5 after the stud of the fastening bolt 4 penetrates the first fixing through hole 103 and the circuit board 9 of the electronic device in sequence, so that the base 1 and the circuit board 9 of the electronic device are connected, the power board 2 is fixed on the base 1 by threadedly connecting the two first fastening screws 7 with the threaded holes of the heads of the corresponding fastening bolts 4 through the two diagonal second fixing through holes 201 of the rim 22 of the power board 2, and the power board body 21 is adhered to the circuit board 9 through the first through hole 101.

[0024] The upper cover 3 is provided with a third fixing through hole 301 at two corner ends corresponding to the positions of the fastening bolts 4 not connected with the first fastening screw 6, the upper cover 3 is threadedly connected with the threaded holes of the heads of the corresponding fastening bolts 4 through the second fixing through hole 201 and the second fastening screw 8 penetrating the third fixing through hole 301 in sequence, so that the upper cover 3 is fixed on the fastening bolts 4, and then the upper cover 3 is fixed on the base 1, and the bottom end opening surface of the upper cover 3 is adhered to the circuit board 9, and then the power board 2 is sealed in the cavity of the circuit board 9 and the upper cover 3.

[0025] The installation process of the embodiment is as follows: first, the base 1 is fixed on the circuit board 9 by the fastening bolt 4 and the fastening nut 5, then the power board 2 provided with the battery module is installed on the base 1, specifically, the power board 2 is fixed on the heads of the fastening bolts 4 by threadedly connecting the two first fastening screws 7 with the threaded holes of the heads of the corresponding fastening bolts 4 through the two diagonal second fixing through holes 201 of the rim 22 of the power board 2, and the feedthrough connected with the power module penetrates the second through hole 102 and the third through hole to lead out the circuit, finally, the upper cover 3 is fixed on the fastening bolts 4 by threadedly connecting the second fastening screw 8 with the threaded holes of the heads of the corresponding fastening bolts 4 through the second fixing through hole 201 and the third fixing through hole 301 in sequence, and then the upper cover 3 is fixed on the base 1, and the bottom end opening surface of the upper cover 3 is adhered to the circuit board 9, and the power board 2 is sealed in the cavity of the circuit board 9 and the upper cover 3.

[0026] It is apparent for a person skilled in the art that the present application is not limited to the details of the above-described exemplary embodiments but can be implemented in other embodiments without deviating from the spirit or essential characteristics of the application. Therefore, the embodiments should be seen as exemplary in nature and non-limiting, the scope of the application being defined by the appended claims rather than by the above description and all changes which come within the meaning and range of equivalents of the claims are to be embraced therein. Any reference signs in the claims should not be construed as limiting the scope of the claims.

[0027] The above-described embodiments only represent some implementation manners of the present application, and the protection scope of the present application is not limited to the above-described embodiments. For those skilled in the art, some modifications and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application.

Claims

1. A board level shielded power structure, characterized by: It includes base, power panel, upper cover, the first through hole and the second through hole are set up on the base, the second through hole is along the first through hole periphery base setting, one end of the power panel is fixed on the base, one end penetrates the installation through hole, the power panel is provided with the third through hole corresponding with the second through hole position and the number, the upper cover is fixed on the base so that the power panel is set up in the cavity of the upper cover.

2. A board level shielded power structure as defined in claim 1, wherein: The power panel is fixed on the base through the fastening device; the fastening device includes fastening bolt, fastening nut and first fastening screw, the bolt head of the fastening bolt is provided with threaded hole, the four corner ends of the base and power panel are respectively provided with first fixed through hole and second fixed through hole, the stud of the fastening bolt penetrates the first fixed through hole and is connected with the fastening nut by screw thread, the power panel is connected with the bolt head of corresponding fastening bolt by screw thread through the first fastening screw penetrating two diagonal second fixed through holes of the power panel.

3. A board level shielded power structure as defined in claim 2, wherein: The power panel includes power panel body and along mouth, the power panel body is provided with along mouth around, the end of the power panel away from along mouth penetrates the installation through hole, the third through hole is set on along mouth.

4. A board level shielded power structure as defined in Claim 2 wherein: The upper cover is provided with third fixed through hole corresponding with the position of fastening bolt not connected with first fastening screw on two corner ends, the upper cover is connected with the bolt head of corresponding fastening bolt by screw thread through second fastening screw penetrating third fixed through hole, second fixed through hole in turn.

5. A board level shielded power structure as defined in Claim 2 wherein: The base, power panel and upper cover are all rectangular.

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