Protective cover

Abstract

The embodiment of the utility model provides a protective cover. The protective cover comprises a top plate provided with a through hole; the side plates are arranged along the circumferential edge of the top plate; an accommodating space is defined by the top plate and the plurality of side plates, and the at least one electronic element is accommodated in the accommodating space, so that the at least one electronic element is covered; the through hole is communicated with the accommodating space, so that one part of the electronic element accommodated in the accommodating space passes through the through hole and extends to the outside of the accommodating space; a plurality of groups of contact parts; the plurality of groups of contact parts are arranged along the circumferential edge of the through hole, and abut against the circumferential side surface of the electronic element accommodated in the accommodating space; each group of contact parts is composed of a plurality of grounding connecting pieces with contact bulges; the contact protrusions are hemispherical, so that any grounding connecting piece is in point contact with the circumferential side face of the electronic element contained in the containing space. The protective cover can realize grounding protection, thereby preventing electronic components from being damaged due to no grounding.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of protective cover, especially relates to a protective cover adopting the contact convex that is semispherical and abuts against the side surface of electronic component to form point contact, so that the electronic component forms ground, and then can carry out ground protection to the electronic component. BACKGROUND

[0002] The protective cover is mainly applied to electronic products such as mobile phones and GPS, prevents electromagnetic interference, and shields electronic components on a PCB (Printed Circuit Board).

[0003] At present, the traditional protective cover only plays the role of ordinary protection, and the ordinary protection at least includes: preventing electromagnetic interference (for example, the protective cover can shield electronic components on the PCB), avoiding damage of electronic components due to external force (that is, most electronic components are very fragile, so they are easily damaged by external force; and the protective cover is generally made of metal material, so the protective cover usually has excellent toughness and impact resistance, so the protective cover can effectively avoid damage of electronic components due to external force), and avoiding damage of electronic components due to stress (the protective cover has a supporting effect, which can prevent damage of electronic components due to stress factors).

[0004] In the prior art, the traditional protective cover does not contact the electronic component, so that the electronic component is not grounded, and the electronic component is damaged due to discharge, short circuit and the like, thereby reducing the reliability of the entire PCB. INVENTION CONTENTS

[0005] The protective cover provided by the utility model aims to solve at least one defect of the prior art.

[0006] The utility model provides a protective cover. The protective cover is arranged on a PCB having a plurality of electronic components; the protective cover comprises:

[0007] A top plate, a through hole is formed in the top plate;

[0008] A plurality of side plates, the plurality of side plates are arranged along the circumferential edge of the top plate and protrude from the surface of the top plate; one end of the side plate away from the top plate abuts against the surface of the PCB;

[0009] The top plate and the plurality of side plates form an accommodating space, and at least one electronic component is accommodated in the accommodating space, so that at least one electronic component is covered;

[0010] The through hole is in communication with the accommodating space, so that a part of the electronic components accommodated in the accommodating space extends to outside of the accommodating space through the through hole;

[0011] The contact components are arranged along the circumferential edge of the through hole and abut against the circumferential side of the electronic components accommodated in the accommodating space;

[0012] The contact components are composed of a plurality of ground connecting pieces with contact protrusions. The contact protrusions are hemispherical, so that any ground connecting piece forms a point contact with the circumferential side of the electronic components accommodated in the accommodating space.

[0013] In some embodiments, the edge plates and the contact components are formed by stamping at least a part of the top plate and are integrated with the top plate.

[0014] The electronic components each have a mounting part and a contact part. One end of the mounting part abuts against the surface of the PCB, and the other end abuts against the contact part.

[0015] The contact part extends to outside of the accommodating space through the through hole.

[0016] In some embodiments, the through hole has a shape and size suitable for the contact part of the electronic components accommodated in the accommodating space.

[0017] In some embodiments, the hemispherical contact protrusions abut against the side of the contact part of the electronic components accommodated in the accommodating space to form a point contact.

[0018] In some embodiments, the ground connecting piece includes:

[0019] A bending part and an elastic arm. One end of the bending part is connected to the edge of the through hole, and the other end is connected to the elastic arm.

[0020] One end of the elastic arm extends away from the bending part and vertically extends into the accommodating space.

[0021] The ground connecting piece has an elastic force, and the elastic force can limit the movement of the elastic arm towards the edge of the through hole.

[0022] In some embodiments, the contact protrusion is formed by stamping at least a part of the elastic arm and is integrated with the elastic arm.

[0023] In some embodiments, when the grounding connectors provide the elastic force, the contact protrusions can be in close contact with the contact portion side of the electronic component accommodated inside the accommodation space.

[0024] In some embodiments, the elastic arm is in a straight line shape, and the bending portion is in an arc shape; the bending portion has a first arc surface and a second arc surface;

[0025] The first arc surface has a first radial dimension, and the second arc surface has a second radial dimension; the first radial dimension is smaller than the second radial dimension.

[0026] In some embodiments, the first arc surface is connected with the inner surface of the top plate, and the second arc surface is connected with the outer surface of the top plate;

[0027] The inner surface of the top plate is located inside the accommodation space, and the outer surface of the top plate is located outside the accommodation space.

[0028] The at least one beneficial effect of the protective cover provided by the embodiment of the utility model is that a novel protective cover is provided, the structure design of the contact component is added, the contact component is composed of a plurality of grounding connectors with contact protrusions, the contact protrusions are in a semispherical shape, point contact is formed between any grounding connector and the circumferential side of the electronic component accommodated inside the accommodation space, the electronic component is grounded, the protective cover can realize grounding protection under the premise of preventing the electronic component from being affected by electromagnetic interference and avoiding damage of the electronic component by external force, damage of the electronic component caused by no grounding is avoided, and the reliability of the whole PCB is improved. In addition, the point contact can realize accurate control of the grounding current distribution and can reduce electromagnetic interference of the surrounding environment after the electronic component is grounded. BRIEF DESCRIPTION OF DRAWINGS

[0029] One or more embodiments are illustrated by way of example in the drawings, which do not limit the embodiments, and elements with the same reference numerals in the drawings represent the same elements, unless otherwise specified, and the drawings do not constitute a proportional limit.

[0030] Figure 1 The structure schematic view when the protective cover provided by the embodiment of the utility model is connected with the PCB;

[0031] Figure 2 The cross-sectional view schematic view when the protective cover provided by the embodiment of the utility model is connected with the PCB;

[0032] Figure 3 The structure schematic view of the protective cover provided by the embodiment of the utility model;

[0033] Figure 4 The utility model provides an embodiment provides Figure 2 The local enlarged view at A is shown in the figure.

[0034] Figure 5 The utility model provides an embodiment provides Figure 3 The local enlarged view at B is shown in the figure.

[0035] Reference signs:

[0036] 100, protective cover, 1001, containing space, 1, top plate, 101, through hole, 102, inner surface, 103, outer surface, 2, side plate, 3, contact component, 31, ground connection, 311, bending part, 312, elastic arm, 3111, first arc surface, 3112, second arc surface, 3121, contact protrusion,

[0037] 200, PCB, 2001, electronic component, 2002, mounting portion, 2003, contact portion. DETAILED DESCRIPTION

[0038] The utility model will be described in detail below in combination with specific embodiments, and it should be emphasized that the following description is only exemplary and is not intended to limit the scope and application of the utility model.

[0039] It should be noted that, unless otherwise explicitly specified and limited, the orientation or position relationship indicated by the terms "circumferential", "radial", "through", "towards", "along", "extend", "extend to", "stretch into", "perpendicular" and the like used in the specification is based on the orientation or position relationship shown in the drawings, and is only for the convenience of describing the utility model and simplifying the description, and therefore cannot be understood as limiting the utility model. The terms "mounting", "fitting", "connecting", "fixing" and the like should be understood broadly, for example, "connecting" can be fixed connection or detachable connection; can be mechanical connection or electrical connection; can be directly connected or indirectly connected through an intermediate medium; "fixing" can be bolted, buckled or glued; the terms "first", "second" are only for the purpose of description, 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; "multiple" or "several" means two or more; in addition, "and / or" includes any and all combinations of one or more related listed items; for ordinary skilled persons in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0040] In order to make the purpose, technical scheme and advantages of the utility model more clear, the utility model will be described in detail below in combination with the drawings and specific embodiments.

[0041] In the embodiment, the specific implementation of the protective cover is not limited, and any suitable implementation can be selectively used according to actual needs of those skilled in the art.

[0042] Figure 1 The structure schematic view when the protective cover provided by the utility model embodiment is connected with the PCB. Figure 2 The sectional view schematic view when the protective cover provided by the utility model embodiment is connected with the PCB. Figure 3 The structure schematic view of the protective cover provided by the utility model embodiment.

[0043] Figure 4 The structure schematic view when the protective cover provided by the utility model embodiment is connected with the PCB. Figure 2 The local enlarged view at A. Figure 5 The structure schematic view when the protective cover provided by the utility model embodiment is connected with the PCB. Figure 3 The local enlarged view at B.

[0044] Please refer to Figures 1-5 The protective cover 100 is arranged on the PCB 200 with a plurality of electronic elements 2001, and can cover at least one electronic element 2001.

[0045] Generally, the existing protective cover can realize the protection effect on the electronic element covered thereby; for example, the existing protective cover can shield the electronic element to prevent the electromagnetic interference from having adverse effects on the electronic element; for another example, the existing protective cover is usually made of metal material, so the existing protective cover has excellent toughness and impact resistance, and thus the existing protective cover can effectively avoid the damage of the electronic element caused by external force; for another example, the existing protective cover can also serve as a supporting structure, thereby increasing the mechanical strength of the PCB, and further avoiding the damage of the electronic element caused by stress; and the protective cover 100 can realize the grounding protection under the premise of the above-mentioned protection effect, so as to avoid the damage of the electronic element 2001 caused by the lack of grounding function.

[0046] The protective cover 100 described above comprises a top plate 1, a plurality of side plates 2 and a plurality of groups of contact components 3.

[0047] Among them, the top plate 1 is provided with a through hole 101; the plurality of side plates 2 are arranged along the circumferential edge of the top plate 1 and protrude from the surface of the top plate 1; and the end of the side plate 2 away from the top plate 1 abuts against the surface of the PCB 200.

[0048] In addition, the top plate 1 and the plurality of side plates 2 enclose a containing space 1001, and at least one electronic component 2001 is contained in the containing space 1001, so that the at least one electronic component 2001 is covered.

[0049] In addition, the through hole 101 is in communication with the containing space 1001, so that part of the electronic component 2001 contained in the containing space 1001 extends to the outside of the containing space 1001 through the through hole 101.

[0050] Specifically, the plurality of groups of contact components 3 are arranged along the circumferential edge of the through hole 101 and abut the circumferential side surface of the electronic component 2001 contained in the containing space 1001.

[0051] In the embodiments of the present application, each group of contact components 3 is composed of a plurality of ground connecting pieces 31 with contact protrusions 3121; the contact protrusions are hemispherical, so that any ground connecting piece 31 forms a point contact with the circumferential side surface of the electronic component 2001 contained in the containing space 1001.

[0052] Generally, point contact refers to only one contact point between the hemispherical contact protrusion and the circumferential side surface of the electronic component; point contact can achieve precise control of ground current distribution, so point contact is mainly applicable to scenarios that require precise measurement and control of ground resistance; among them, point contact applied in high-frequency or sensitive electronic components can also reduce electromagnetic interference of the electronic component to the surrounding environment; in addition, point contact occupies less space and can be applied to occasions with limited space.

[0053] In some embodiments, as shown in Figure 1 , Figure 3 and Figure 4 , the plurality of side plates 2 and the plurality of groups of contact components 3 are formed by stamping at least a part of the top plate 1 and are an integral structure with the top plate 1.

[0054] In some embodiments, in combination with Figure 1 , Figure 2 and Figure 4 , it can be seen that each electronic component 2001 has a mounting portion 2002 and a contact portion 2003; one end of the mounting portion 2002 abuts the surface of the PCB 200, and the other end abuts the contact portion 2003.

[0055] It should be noted that the end of the contact portion 2003 away from the mounting portion 2002 extends through the through hole 101 towards the outside of the containing space 1001.

[0056] In some embodiments, according to Figures 1-4It is understood that the through hole 101 has a shape and size that are adapted to the contact portion 2003 of the electronic component 2001 housed inside the accommodating space 1001.

[0057] In some embodiments, by Figure 4 and Figure 5 It can be seen that the hemispherical contact protrusion 3121 abuts against the side of the contact portion of the electronic component 2001 housed inside the housing space 1001 to form a point contact.

[0058] In some embodiments, refer to Figure 4 and Figure 5 It is known that the grounding connector 31 includes a bent portion 311 and an elastic arm 312.

[0059] One end of the bent portion 311 is connected to the edge of the through hole 101, and the other end is connected to the elastic arm 312.

[0060] In addition, the end of the elastic arm 312 away from the bending part 311 extends away from the top plate 1 and extends vertically into the receiving space 1001.

[0061] In addition, the grounding connector 31 has an elastic force, and the elastic force can limit the movement of the elastic arm 312 toward the edge of the through hole 101.

[0062] In some embodiments, combined with Figures 2-5 It is known that the contact protrusion 3121 is formed by at least a partial stamping of the elastic arm 312, and is an integral structure with the elastic arm 312.

[0063] In some embodiments, such as Figures 1-5 As shown, when the grounding connector 31 provides elastic force, the contact protrusion 3121 can be tightly attached to the side of the contact portion of the electronic component 2001 housed inside the receiving space 1001.

[0064] In this embodiment, the grounding connector 31 has the aforementioned elastic force, so at least a portion of the contact protrusion 3121 of the grounding connector 31 can be tightly attached to the side of the contact portion 2003, so that the contact between the two is reliable, thereby improving the grounding reliability of the electronic component 2001, thereby providing more reliable grounding protection for the electronic component 2001, so as to avoid damage to the electronic component 2001 due to discharge, short circuit or other reasons, and thus improving the reliability of the entire PCB board 200.

[0065] In some embodiments, please refer to Figure 4 and Figure 5 The elastic arm 312 is in a straight line shape, and the bent part 311 is in an arc shape; the bent part 311 has a first arc surface 3111 and a second arc surface 3112.

[0066] It can be understood that the first arc surface 3111 has a first radial dimension, and the second arc surface 3112 has a second radial dimension; the first radial dimension is smaller than the second radial dimension.

[0067] In some embodiments, please continue to refer to Figure 4 and Figure 5 The first arc surface 3111 is connected with the inner surface 102 of the top plate 1, and the second arc surface 3112 is connected with the outer surface 103 of the top plate 1.

[0068] It should be noted that the inner surface 102 of the top plate 1 is located inside the containing space 1001, and the outer surface 103 of the top plate 1 is located outside the containing space 1001.

[0069] In summary, the protective cover provided in the embodiment of the present application adds the structure design of the contact component, and the contact component is composed of a plurality of grounding connectors with contact protrusions; the contact protrusions are hemispherical, so that any grounding connector forms point contact with the circumferential side surface of the electronic element accommodated inside the containing space, and the electronic element is grounded, so that the protective cover can realize grounding protection under the premise of preventing the electronic element from being affected by electromagnetic interference and avoiding damage to the electronic element by external force, thereby avoiding damage to the electronic element due to no grounding, and improving the reliability of the entire PCB. In addition, the above-mentioned point contact can realize accurate control of the distribution of grounding current, and can also reduce the electromagnetic interference of the electronic element to the surrounding environment after grounding. Therefore, the protective cover provided in the embodiment of the present application has certain novelty compared with the traditional protective cover.

[0070] The above content is a further detailed description of the present application combined with specific / preferred embodiments, and cannot be considered as limiting the specific implementation of the present application to these descriptions. For ordinary skilled persons in the art, without departing from the concept of the present application, a number of modifications and improvements can be made, and these all belong to the protection scope of the present application.

Claims

1. A protective cover provided on a PCB board having a plurality of electronic components; characterized in that, The protective cover comprises: a top plate, a through hole being formed on the top plate; a plurality of side plates, the plurality of side plates being arranged along the circumferential edge of the top plate and protruding from the surface of the top plate, and the end of the side plate away from the top plate abutting against the surface of the PCB board; the top plate and the plurality of side plates form an accommodating space, and at least one electronic component is accommodated in the accommodating space so that the at least one electronic component is covered; the through hole is in communication with the accommodating space, so that part of the electronic component accommodated in the accommodating space extends to the outside of the accommodating space through the through hole; a plurality of contact components, the plurality of contact components being arranged along the circumferential edge of the through hole and abutting against the circumferential side of the electronic component accommodated in the accommodating space; each of the plurality of contact components comprises a plurality of grounding connectors with contact protrusions, the contact protrusions being semispherical so that any of the grounding connectors forms a point contact with the circumferential side of the electronic component accommodated in the accommodating space.

2. The protective cover according to claim 1, wherein the plurality of side plates and the plurality of contact components are formed by stamping at least a part of the top plate and are in an integral structure with the top plate.

3. The protective cover according to claim 1, wherein each of the electronic components has a mounting portion and a contact portion, one end of the mounting portion abutting against the surface of the PCB board and the other end abutting against the contact portion; the end of the contact portion away from the mounting portion extends to the outside of the accommodating space through the through hole.

4. The protective cover according to claim 3, wherein the through hole has a shape and a size adapted to the contact portion of the electronic component accommodated in the accommodating space.

5. The protective cover according to claim 3, wherein the semispherical contact protrusion abuts against the side of the contact portion of the electronic component accommodated in the accommodating space to form a point contact.

6. The boot of claim 3, wherein, The grounding connector comprises: a bending portion and an elastic arm, one end of the bending portion being connected to the edge of the through hole and the other end being connected to the elastic arm; the end of the elastic arm away from the bending portion extends to the direction away from the top plate and vertically extends into the accommodating space; the grounding connector has an elastic force, and the elastic force can limit the movement of the elastic arm to the direction close to the edge of the through hole.

7. The protective cover according to claim 6, wherein the contact protrusion is formed by stamping at least a part of the elastic arm and is in an integral structure with the elastic arm.

8. The protective cover according to claim 6, wherein when the grounding connector provides the elastic force, the contact protrusion can tightly abut against the side of the contact portion of the electronic component accommodated in the accommodating space.

9. The protective cover according to claim 6, wherein the elastic arm is in a straight line shape, and the bending portion is in an arc shape, the bending portion having a first arc surface and a second arc surface; The first arc surface has a first radial dimension, and the second arc surface has a second radial dimension; the first radial dimension is less than the second radial dimension.

10. The protective cover of claim 9, wherein, The first arc surface is connected to an inner surface of the top plate, and the second arc surface is connected to an outer surface of the top plate. The inner surface of the top plate is located inside the accommodation space, and the outer surface of the top plate is located outside the accommodation space.

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