CN220210899U

CN220210899U - Shielding device and power consumption terminal equipment

Info

Publication number: CN220210899U
Application number: CN202322006791.6U
Authority: CN
Inventors: 侯晓辉; 廖迪
Original assignee: Hiscene Information Technology Co Ltd
Current assignee: Hiscene Information Technology Co Ltd
Priority date: 2023-07-27
Filing date: 2023-07-27
Publication date: 2023-12-19
Anticipated expiration: 2033-07-27

Abstract

The application relates to a shielding device and an electric terminal device, wherein the shielding device comprises a frame and a cover plate, and the frame is used for being connected with a circuit board of the electric terminal device; the cover plate comprises a PCB and a first contact piece electrically connected with the PCB, wherein the first contact piece is used for being electrically contacted and conducted with a circuit board of the power utilization terminal equipment so as to feed back a safety signal, and when the first contact piece is electrically contacted and disconnected with the circuit board of the power utilization terminal equipment, the first contact piece is used for feeding back a disconnection signal; and shielding materials are arranged on the cover plate and the frame. The cover plate and the frame are not damaged during disassembly and assembly, and the maintenance operation is convenient. When the first contact piece is electrically contacted with the circuit board of the power utilization terminal equipment and disconnected, the first contact piece can feed back a disconnection signal to prompt a user of the fault of the shielding device, and the shielding device is maintained in time, so that the reliable operation of the equipment is ensured, and the problem that the operation reliability of the equipment is deteriorated due to the loosening of the shielding device when the shielding device is used for a long time or the collision piece occurs is avoided.

Description

Shielding device and power consumption terminal equipment

Technical Field

The application relates to the technical field of circuit board shielding, in particular to a shielding device and power utilization terminal equipment.

Background

In the electric terminal equipment, in order to improve the stability of the operation of each electronic component, a shielding device is required to perform electromagnetic shielding to prevent electromagnetic interference to each electronic component. In addition, in order to solve the problems of high power consumption and high heat generation caused by the improvement of the computing capacity, a shielding device capable of radiating heat needs to be arranged to disperse the heat of the heating element in the electronic product. Common shielding devices are usually provided in a removable form for ease of disassembly and maintenance. However, such a shielding device is liable to loosen when used for a long period or a collision occurs, resulting in poor reliability.

Disclosure of Invention

Accordingly, it is necessary to provide a shielding device which can be safely presented and is easy to repair and detach, in order to solve the problem of poor reliability of the shielding device.

A shielding apparatus, the shielding apparatus comprising:

the frame is used for being connected with a circuit board of the power utilization terminal equipment;

the cover plate is arranged on the frame in a covering mode and is detachably connected with the frame, shielding materials are arranged on the cover plate and the frame, the cover plate comprises a PCB and a first contact piece electrically connected with the PCB, the first contact piece is used for being electrically contacted and conducted with a circuit board of the power utilization terminal equipment so as to feed back a safety signal, and when the first contact piece is electrically contacted and disconnected with the circuit board of the power utilization terminal equipment, the first contact piece is used for feeding back a disconnection signal.

In one embodiment, the shielding device further comprises a connecting piece, and the cover plate and the frame are in threaded connection or clamping connection with the circuit board of the power utilization terminal equipment through the connecting piece.

In one embodiment, at least one side of the cover plate is copper clad; and/or the frame is a PCB board, and copper is paved on the surface of the frame.

In one embodiment, a copper leakage grounding area is arranged on the cover plate.

In one embodiment, the shielding device further comprises a reinforcing plate detachably connected to a side of the cover plate facing away from the frame, the reinforcing plate being capable of conducting heat.

In one embodiment, the shielding device further comprises a spacer disposed between the frame and the circuit board, the spacer comprising a spring plate, and/or the spacer comprising a conductive sponge.

In one embodiment, the first contact is a conductive member.

The application also provides an electric terminal device, comprising:

an apparatus main body;

the circuit board is connected with the equipment main body and comprises a heating element;

the shielding device and the second contact piece are elastically arranged on the circuit board and can be contacted with the first contact piece;

the first heat dissipation structure is arranged between the circuit board and the shielding device, covers the heating element, and/or further comprises a second heat dissipation structure, and the second heat dissipation structure covers one side, away from the circuit board, of the shielding device.

In one embodiment, the second contact member includes an elastic body and a limiting body, the elastic body is connected with the circuit board, and the limiting body is fixedly connected with the circuit board and is in limiting abutting connection with the elastic body.

In one embodiment, the power terminal device further comprises a connection board connected to a side of the shielding device facing away from the circuit board, for assembling the circuit board and the shielding device to the device body of the power terminal device.

According to the shielding device, the frame is connected with the circuit board of the power terminal equipment, the cover plate is covered on the frame, shielding materials are arranged on the cover plate and the frame, a shielding cavity can be formed, and electromagnetic interference to each electronic element is prevented. The cover plate and the frame are detachably connected, the cover plate cannot be damaged during disassembly and assembly, and maintenance operation is convenient. The detachable back cover plate can be reused, and material waste is reduced. The cover plate comprises a PCB and a first contact piece electrically connected with the PCB, wherein the first contact piece is used for being electrically contacted and conducted with a circuit board of the power terminal equipment so as to feed back a safety signal. When the first contact piece is electrically contacted with the circuit board of the power utilization terminal equipment and disconnected, the first contact piece can feed back a disconnection signal to prompt a user of the fault of the shielding device, and the shielding device is maintained in time, so that the reliable operation of the equipment is ensured, and the problem that the operation reliability of the equipment is deteriorated due to the loosening of the shielding device when the shielding device is used for a long time or the collision piece occurs is avoided.

According to the power utilization terminal equipment, the shielding cavity can be formed through the shielding device, and electromagnetic shielding of all electronic elements on the circuit board is achieved. And the heat dissipation of the heating element on the circuit board is realized through the first heat dissipation structure and the second heat dissipation structure. The first contact piece can feed back a disconnection signal to prompt a user of the fault of the shielding device, and the shielding device is maintained in time, so that reliable operation of equipment is ensured, and the problem that the operation reliability of the equipment is poor due to loosening of the shielding device when the shielding device is used for a long time or a collision piece occurs is avoided.

Drawings

Fig. 1 is an exploded view of a shielding device in an embodiment.

Fig. 2 is a schematic diagram of a circuit board in an embodiment.

Fig. 3 is an exploded view of the assembly of the shielding device with the circuit board and the connection board in an embodiment.

Fig. 4 is an exploded view of a shielding device and circuit board, connection board assembly from another perspective in one embodiment.

Description of the reference numerals:

100. a shielding device; 200. a circuit board; 300. a first heat dissipation structure; 400. a second heat dissipation structure; 500. a connecting plate;

110. a frame; 120. a cover plate; 130. a reinforcing plate; 140. a gasket; 150. a connecting piece;

210. a second contact; 220. a heating element.

Detailed Description

In order to make the above objects, features and advantages of the present application more comprehensible, embodiments accompanied with figures are described in detail below. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application. This application is, however, susceptible of embodiment in many other forms than those described herein and similar modifications can be made by those skilled in the art without departing from the spirit of the application, and therefore the application is not to be limited to the specific embodiments disclosed below.

In the description of the present application, it should be understood that, if there are terms such as "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., these terms refer to the orientation or positional relationship based on the drawings, which are merely for convenience of description and simplification of description, and do not indicate or imply that the apparatus or element referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present application.

Furthermore, the terms "first," "second," and the like, if any, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present application, the terms "plurality" and "a plurality" if any, mean at least two, such as two, three, etc., unless specifically defined otherwise.

In this application, unless explicitly stated and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly. For example, the two parts can be fixedly connected, detachably connected or integrated; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the terms in this application will be understood by those of ordinary skill in the art as the case may be.

In this application, unless expressly stated or limited otherwise, the meaning of a first feature being "on" or "off" a second feature, and the like, is that the first and second features are either in direct contact or in indirect contact through an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.

It will be understood that if an element is referred to as being "fixed" or "disposed" on another element, it can be directly on the other element or intervening elements may also be present. If an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like as used herein, if any, are for descriptive purposes only and do not represent a unique embodiment.

Referring to fig. 1 to 4, a shielding device 100 provided in an embodiment of the present application includes a frame 110 and a cover plate 120, where the shielding device 100 connects the frame 110 with a circuit board 200 of an electrical terminal device, the cover plate 120 is covered on the frame 110, and shielding materials are disposed on the cover plate 120 and the frame 110, so that a shielding cavity can be formed, and electromagnetic shielding of each electronic component on the circuit board 200 is achieved. The cover plate 120 is detachably connected with the frame 110, so that the cover plate 120 is not damaged during disassembly and assembly, and the maintenance operation is convenient. The disassembled back cover plate 120 can be reused, and material waste is reduced. The cover plate 120 includes a PCB board (Printed Circuit Board ) and a first contact electrically connected to the PCB board, where the first contact is used for electrically contacting and conducting with the circuit board 200 of the power terminal device to feed back a safety signal. When the first contact is electrically contacted with the circuit board 200 of the power utilization terminal equipment, the first contact can feed back a disconnection signal to prompt a user to shield the equipment 100 to be failed, and timely maintain the equipment, so that the reliable operation of the equipment is ensured, and the problem that the operation reliability of the equipment is poor due to the loosening of the shielding equipment 100 when the equipment is used for a long time or the collision occurs is avoided.

Optionally, a plurality of frames 110 are stacked to enable the cover plate 120 to cover electronic components of different heights on the powered terminal device circuit board 200. The number of frames 110 of the shielding device 100 may be adjusted according to the heights of the electronic components on the circuit board 200 of the power consumption terminal device to increase the overall height of the shielding device 100, thereby ensuring coverage of the electronic components with different heights, ensuring electromagnetic shielding, and increasing the stability of the power consumption terminal device.

Optionally, in one embodiment, the first contact is a conductive member, so that the first contact is kept conductive when contacting with an electrical element on the circuit board 200 of the power terminal device, so as to feed back a safety signal. When the first contact is electrically contacted with the circuit board 200 of the electricity terminal equipment, the first contact is used for feeding back a disconnection signal to prompt a user of the fault of the shielding device 100, and timely maintenance is performed to ensure reliable operation of the equipment. Optionally, the conductive member is a pogo pin or a metal sheet.

To make clear the detachable connection of the cover 120 and the frame 110, in one embodiment, the shielding device 100 further comprises a connection 150, through which connection 150 the cover 120 and the frame 110 are screwed to the circuit board 200 of the power terminal device. Optionally, the connecting piece 150 includes a patch copper nut and a screw, where the patch copper nut is used to bond or weld with the circuit board 200 of the electrical terminal device, the frame 110 and the cover plate 120 are both provided with a connecting hole, and the screw is inserted into the connecting hole and is connected and fixed with the patch copper nut. Alternatively, the cover 120 and the frame 110 are clamped with the circuit board 200 of the electric terminal device through the connecting piece 150.

Optionally, the connecting piece 150 includes a buckle and a clamping hole, the buckle is disposed on the cover plate 120, the clamping hole is disposed on the frame 110, the buckle is clamped with the clamping hole, so that the cover plate 120 and the frame 110 are connected and fixed, and similarly, the buckle can also be disposed on the frame 110, and the clamping hole can be disposed on the circuit board 200 of the power terminal device, and the two are fixedly connected through the clamping of the buckle and the clamping hole. Optionally, the buckle is elastic material to be convenient for realize joint and dismantlement.

Optionally, the shielding material is a metal material such as copper, stainless steel, etc.

To enhance the shielding effect, in one embodiment, at least one side of the cover plate 120 is plated with copper, and optionally, both sides of the cover plate 120 are plated with copper, so that the electromagnetic shielding effect is enhanced, and heat dissipation is also uniform. Optionally, the frame 110 is a PCB board, and copper is spread on the surface of the frame 110 to further enhance the electromagnetic shielding effect of the shielding chamber.

Further, in one embodiment, a copper leakage ground area is provided on the cover plate 120 to ensure the working stability of the electronic components on the circuit board 200 in the shielding device 100.

To improve the connection stability and structural strength of the shielding device 100, in one embodiment, the shielding device 100 further includes a reinforcing plate 130, where the reinforcing plate 130 is detachably connected to a side of the cover plate 120 facing away from the frame 110, and the reinforcing plate 130 is capable of conducting heat. The reinforcing plate 130 further transfers heat to increase the heat dissipation area, so that the surface of the cover plate 120 is protected while heat dissipation is uniform, so that the stability and the structural strength of the shielding device 100 are enhanced, and damage to the cover plate 120 when a collision occurs is avoided.

In order to further enhance the sealing performance and further enhance the shielding effect of the shielding device 100, in one embodiment, the shielding device 100 further includes a spacer 140, where the spacer 140 is disposed between the frame 110 and the circuit board 200, and the spacer 140 includes a spring plate, optionally, a surface layer of the spring plate is plated with gold, and the spring plate may be made of a metal material such as copper, stainless steel, etc., so as to enhance the contact stability between the shielding device 100 and the circuit board 200 of the power terminal device. Optionally, the pad 140 includes a conductive sponge to improve the sealing of the connection of the frame 110 to the circuit board 200 of the powered terminal device. Optionally, the gasket 140 includes an elastic sheet and a conductive sponge, where the elastic sheet and the conductive sponge are sequentially disposed between the frame 110 and the circuit board 200, so that the contact stability between the shielding device 100 and the circuit board 200 of the power consumption terminal device is enhanced, and the tightness of the connection between the frame 110 and the circuit board 200 of the power consumption terminal device is improved, thereby achieving a double-layer protection effect.

In the shielding device 100, the frame 110 is connected with the circuit board 200 of the electric terminal equipment, the cover plate 120 is covered on the frame 110, and shielding materials are arranged on the cover plate 120 and the frame 110, so that a shielding cavity can be formed, and electromagnetic shielding of each electronic element on the circuit board 200 can be realized. The cover plate 120 is detachably connected with the frame 110, so that the cover plate 120 is not damaged during disassembly and assembly, and the maintenance operation is convenient. The disassembled back cover plate 120 can be reused, and material waste is reduced. The cover plate 120 includes a PCB board and a first contact electrically connected to the PCB board, where the first contact is used for electrically contacting and conducting with the circuit board 200 of the power terminal device to feed back a safety signal. When the first contact is electrically contacted with the circuit board 200 of the power utilization terminal equipment, the first contact can feed back a disconnection signal to prompt a user to shield the equipment 100 to be failed, and timely maintain the equipment, so that the reliable operation of the equipment is ensured, and the problem that the operation reliability of the equipment is poor due to the loosening of the shielding equipment 100 when the equipment is used for a long time or the collision occurs is avoided.

The application also provides an electric terminal device, which comprises a device main body, a circuit board 200, a shielding device 100, a first heat dissipation structure 300 and/or a second heat dissipation structure 400, wherein the circuit board 200 is connected with the device main body, and the circuit board 200 comprises a heating element 220; the second contact 210 is elastically arranged on the circuit board and can be contacted with the first contact; the first heat dissipation structure 300 is disposed between the circuit board 200 and the shielding device 100, and covers the heating element 220. The power terminal device can form a shielding chamber through the shielding device 100, and realize electromagnetic shielding of all electronic elements on the circuit board 200. The heat dissipation of the heating element 220 on the circuit board 200 is realized through the first heat dissipation structure 300 and the second heat dissipation structure 400. By disconnecting the contact between the first contact member and the second contact member 210 of the shielding device 100, a disconnection signal is fed back to prompt a user that the shielding device 100 is out of order, so that the equipment is maintained in time, the reliable operation of the equipment is ensured, and the problem that the operation reliability of the equipment is deteriorated due to the loosening of the shielding device 100 when the shielding device is used for a long time or a collision member occurs is avoided.

Optionally, in order to enable the heat of the heating elements 220 with different heights to be reliably transferred, the first heat dissipation structures 300 are thermally conductive gel or thermally conductive silica gel, and each heating element 220 is correspondingly provided with one first heat dissipation structure 300, and each first heat dissipation structure 300 has a different thickness so as to fully contact the heating elements 220 with different heights to transfer the heat to the shielding device 100.

Further, in one embodiment, the power terminal device further includes a second heat dissipation structure 400, where the second heat dissipation structure 400 is covered on a side of the shielding device 100 facing away from the circuit board 200, so that heat transferred to the shielding device 100 by the heating element 220 through the first heat dissipation structure can be further uniformly transferred and dissipated, so as to enhance a heat dissipation effect. Optionally, the second heat dissipation structure 400 is a heat-conducting silicone plate or other soaking plate with heat-conducting property, and the heat-conducting silicone plate or soaking plate covers a side of the shielding device 100 facing away from the circuit board 200.

In one embodiment, the second contact 210 includes an elastic body and a limiting body, the elastic body is connected with the circuit board 200, the limiting body is fixedly connected with the circuit board 200 and is in limiting abutment with the elastic body, so as to limit the elastic deformation range of the elastic body in a direction approaching to the shielding device 100, and when the shielding device 100 is reliably connected with the circuit board 200, the elastic body abuts against the first contact of the shielding device 100. When the shielding device 100 is in collision or loosening, the elastic body is in poor contact with the cover plate 120 of the shielding device 100 or is in disconnection, the electric connection between the elastic body and the cover plate is disconnected, and the first contact can feed back a disconnection signal to prompt a user of the failure of the shielding device 100, so that the shielding device is maintained in time, and reliable operation of equipment is ensured.

In one embodiment, the power consumption terminal device further comprises a connection board 500, wherein the connection board 500 is connected with the side of the shielding device 100, which is away from the circuit board 200, and is used for assembling the circuit board 200 and the shielding device 100 to the device main body of the power consumption terminal device. Optionally, to ensure the stability of the connection, the connection plate 500 is a metal plate.

The technical features of the above-described embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above-described embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.

The above examples only represent a few embodiments of the present application, which are described in more detail and are not to be construed as limiting the scope of the claims. It should be noted that it would be apparent to those skilled in the art that various modifications and improvements could be made without departing from the spirit of the present application, which would be within the scope of the present application. Accordingly, the scope of protection of the present application is to be determined by the claims appended hereto.

Claims

1. A shielding device, characterized in that the shielding device comprises:

2. The shielding device according to claim 1, further comprising a connector through which the cover plate and the frame are screwed or snapped with a circuit board of an electrical terminal device.

3. The shielding device of claim 1, wherein at least one side of the cover plate is copper clad; and/or the frame is a PCB board, and copper is paved on the surface of the frame.

4. A shielding device according to claim 3, wherein a copper leakage ground region is provided on the cover plate.

5. The shielding device according to claim 1, further comprising a reinforcing plate detachably connected to a side of the cover plate facing away from the frame, the reinforcing plate being thermally conductive.

6. The shielding device according to claim 1, further comprising a spacer disposed between the frame and the circuit board, the spacer comprising a spring plate, and/or the spacer comprising a conductive sponge.

7. The shielding apparatus of claim 1, wherein the first contact is a conductive member.

8. An electric terminal device, characterized by comprising:

an apparatus main body;

the shielding device of any one of claims 1 to 7 and a second contact elastically disposed on the circuit board and contactably disposed with the first contact;

9. The electrical terminal device of claim 8, wherein the second contact includes an elastomer and a limiting body, the elastomer being connected to the circuit board, the limiting body being fixedly connected to the circuit board and being in limiting abutment with the elastomer.

10. The power terminal apparatus according to claim 8, further comprising a connection plate connected to a side of the shielding device facing away from the circuit board for fitting the circuit board and the shielding device to an apparatus main body of the power terminal apparatus.