Light and thin anti-seismic electromagnetic shielding display screen device

Abstract

The utility model discloses a light and thin anti-vibration electromagnetic shielding display screen device which comprises a machine shell, a light and thin anti-vibration electromagnetic shielding display screen and a light and thin anti-vibration electromagnetic shielding display screen, the display screen main body is arranged in the accommodating space; the buffer part is arranged between one side, far away from a user, of the display screen main body and the shell; the shielding diaphragm is arranged on the side, close to a user, of the display screen body, and the size of the shielding diaphragm is larger than that of the display screen body, so that a circle of exposed conductive area is formed on the periphery of the shielding diaphragm; the conductive flexible part is arranged on the conductive area, and the conductive flexible part is in lap joint with the machine shell, so that a complete electromagnetic shielding space is formed by the shielding diaphragm and the machine shell; the conductive flexible part is also used as an anti-vibration part for enabling one side, close to a user, of the display screen main body and the shell to be in a buffer state; and the fixing structure is used for fixing the relative positions of the shielding diaphragm, the display screen and the shell. The display screen device is convenient to install, is light and thin as a whole, and has a good battery shielding effect and an anti-seismic effect.

Description

Technical Field

[0001] The utility model relates to the technical field of display screens, in particular to a light and thin shock-resistant electromagnetic shielding display screen device. Background Art

[0002] With the development of electronic technology, the interference problem of electronic equipment is becoming more and more serious; therefore, electromagnetic compatibility design has become a very important part of electronic product design. In electronic equipment, electromagnetic interference energy is generally transmitted through two ways: conductive coupling and radiative coupling. When designing, filtering methods are usually used to suppress conductive coupling; while electromagnetic shielding measures are used to control radiative coupling. Electromagnetic shielding is one of the important means to solve the electromagnetic compatibility problem of electronic equipment. Most electromagnetic compatibility problems can be solved by electromagnetic shielding, especially as the frequency of circuit operation increases. Simply relying on circuit board design often cannot meet the requirements of electromagnetic compatibility standards. The shielding design of electronic equipment is very different from the traditional structural design. If the shielding problem is not considered during the structural design, it is difficult to meet the electromagnetic compatibility requirements. Therefore, when designing electronic products, electromagnetic shielding must be considered from the beginning.

[0003] Electromagnetic shielding is mainly used to prevent the influence of high-frequency electromagnetic fields, thereby effectively controlling the radiation and propagation of electromagnetic waves from one area to another. The purpose of electromagnetic shielding is to suppress the propagation of electromagnetic noise, so that the instruments in the electromagnetic environment can avoid electromagnetic interference while not generating electromagnetic interference. Usually, materials with good conductivity and magnetic permeability are used to isolate the area to be shielded from the outside.

[0004] In the field of communications, electronic equipment for communications has very high requirements for electromagnetic compatibility. Most devices use screen glass as a shielding measure at the display window. The general installation method is to use a metal pressure plate to press the metal screen of the screen glass to achieve shielding, and then fix the display screen by other fixing methods. This installation method has the problems of difficult installation, large space occupied by the entire display unit, and a large gap between the display screen and the glass, which affects the display effect.

[0005] In the prior art, the patent with publication number CN 216752644 U discloses a new display screen installation structure that meets electromagnetic shielding requirements, including: window glass; irregular shielding film, the bottom of which is attached to the surface of the window glass; display screen, which is bonded to the surface of the irregular shielding film by a temperature-resistant water-based adhesive; conductive foam, the bottom of which is attached to the top of the irregular shielding film; and also includes a device housing and a metal pressure plate during installation. This structure is easy to install and is suitable for miniaturized equipment applications, but the electromagnetic shielding effect and anti-seismic effect of this structure are poor.

[0006] In view of this, it is necessary to design a light and thin shock-resistant electromagnetic shielding display screen device to solve the above problems. Utility Model Content

[0007] The utility model aims to provide a light and thin shock-resistant electromagnetic shielding display screen device which is easy to install, light and thin as a whole, and has good battery shielding effect and shock-resistant effect.

[0008] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0009] A light and thin shock-resistant electromagnetic shielding display screen device, comprising:

[0010] A casing, wherein a receiving space is provided in the casing;

[0011] A display screen body is arranged in the accommodation space;

[0012] A buffer member is arranged between the side of the display screen body away from the user and the housing;

[0013] A shielding film is arranged on the side of the display screen body close to the user, and the size of the shielding film is larger than the size of the display screen body, so that a circle of exposed conductive area is formed around the shielding film;

[0014] A conductive flexible member is arranged on the conductive area, and the conductive flexible member overlaps with the housing so that the shielding film and the housing form a complete electromagnetic shielding space; the conductive flexible member also serves as an anti-vibration member that keeps the display screen body close to the user and the housing in a buffer state;

[0015] The fixing structure is used to fix the relative positions of the shielding film, the display screen body and the casing.

[0016] As a further improvement of the present invention, the fixing structure includes a pressing frame and a fixing member arranged on a side of the shielding film away from the display screen body, and the pressing frame is provided with a fixing hole adapted to the fixing member.

[0017] As a further improvement of the present invention, the size of the hollow area inside the pressing frame is smaller than the size of the display screen body on the side close to the user, so that under the action of the pressing frame, the display screen body and the casing are kept relatively fixed on all sides.

[0018] As a further improvement of the present invention, each side edge of the pressing frame is a wedge-shaped structure slanting downward close to the center of the pressing frame.

[0019] As a further improvement of the utility model, the housing is further provided with a groove for accommodating the conductive flexible member and the shielding film, so that the side of the shielding film away from the display screen body and the side of the housing close to the user are in the same plane.

[0020] As a further improvement of the present invention, the conductive flexible member is conductive foam, and the buffer member is buffer foam.

[0021] As a further improvement of the present invention, the size of the buffer foam is consistent with the size of the side of the display screen body away from the user.

[0022] As a further improvement of the utility model, the conductive foam is fixed on the conductive area of ​​the shielding membrane by means of waterproof sealant or waterproof double-sided tape.

[0023] The beneficial effects of the utility model are:

[0024] 1. The utility model provides a conductive flexible part in the conductive area of ​​the shielding membrane and overlaps the conductive flexible part on the casing, so that the conductive flexible part can be used to ensure good contact between the shielding membrane and the casing, thereby avoiding the leakage of magnetic flux caused by the gap between the shielding membrane and the casing in the prior art, thereby affecting the electromagnetic shielding effect; in addition, the presence of the conductive flexible part also makes the display screen body facing the user side and the shielding membrane and the fixing part in a flexibly connected state, that is, there is a buffer space between the display screen body facing the user side and the front side of the shielding space, combined with the buffer part arranged on the display screen body away from the user side, so that the display screen device has a good shock-resistant effect and can effectively extend the service life of the display screen.

[0025] 2. The utility model installs the buffer component, the display screen body, the conductive flexible component and the shielding film on the casing in sequence, and can enhance the close contact effect between the shielding film and the casing by utilizing the conductive flexible component, so as to form an electromagnetic shielding space by utilizing the shielding film and the casing, while placing the display screen body in a buffering environment, so that the display screen device has a certain shock resistance effect. In addition, the installation method of the display screen device can also effectively reduce the thickness of the display screen device, so that the display screen device has the characteristics of being light and thin.

[0026] 3. The lightweight and shock-resistant electromagnetic shielding display screen device of the utility model is easy to install, occupies less space, is thin, and is light in weight. It also has good battery shielding and shock-resistant effects, and can fully meet people's needs for electromagnetic shielding, lightness, and service life of the display screen device. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a structural schematic diagram of a light and thin shock-resistant electromagnetic shielding display screen device of the present utility model.

[0028] Figure 2 It is a schematic diagram of the cross-sectional structure of a thin and light shock-resistant electromagnetic shielding display screen device.

[0029] Reference numerals

[0030] 10. Casing; 20. Display screen body; 30. Buffer foam; 40. Shielding diaphragm; 50. Conductive foam; 60. Press frame. DETAILED DESCRIPTION

[0031] In order to make the purpose, technical solutions and advantages of the present invention more clear, the present invention is described in detail below with reference to the accompanying drawings and specific embodiments.

[0032] It should also be noted that, in order to avoid obscuring the present invention due to unnecessary details, only structures and / or processing steps closely related to the scheme of the present invention are shown in the accompanying drawings, while other details that are not closely related to the present invention are omitted.

[0033] In addition, it should be noted that the terms "comprises", "includes" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or apparatus that includes a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or apparatus.

[0034] See also Figure 1-Figure 2 As shown, the utility model provides a light and thin shock-resistant electromagnetic shielding display screen device, comprising:

[0035] A housing 10, wherein a receiving space is provided in the housing 10;

[0036] A display screen body 20 is disposed in the accommodation space;

[0037] A buffer member is disposed between the side of the display screen body 20 away from the user and the housing 10;

[0038] The shielding film 40 is arranged on the side of the display screen body 20 close to the user. The size of the shielding film 40 is larger than that of the display screen body 20, so that a circle of exposed conductive area is formed around the shielding film 40;

[0039] A conductive flexible member is arranged on the conductive area, and the conductive flexible member overlaps the housing 10, so that the shielding film 40 and the housing 10 form a complete electromagnetic shielding space; the conductive flexible member also serves as an anti-vibration member that keeps the display screen body 20 close to the user and the housing 10 in a buffer state;

[0040] The fixing structure is used to fix the relative positions of the shielding film 40 , the display screen main body 20 and the housing 10 .

[0041] Specifically, in this embodiment, the conductive flexible member is a conductive foam 50, and the buffer member is a buffer foam 30. The buffer foam 30 is provided so that a buffer zone exists between the side of the display screen body 20 away from the user, that is, the back side of the display screen body 20 and the inner side wall of the housing 10, and the conductive foam 50 is provided so that a buffer zone exists between the side of the display screen body 20 close to the user, that is, the front side of the display screen body 20 and the side of the housing 10 close to the user, that is, the presence of the conductive foam 50 and the buffer foam 30 puts the display screen body 20 in an environment with a certain anti-seismic effect, which can effectively improve the anti-seismic effect of the display screen device and increase the service life of the display screen body 20.

[0042] Specifically, the size of the buffer foam 30 is consistent with the size of the back side of the display screen body 20 .

[0043] Specifically, the conductive foam 50 is fixed to the conductive area of ​​the shielding membrane 40 by means of waterproof sealant or waterproof double-sided tape, so as to enhance the fixed connection effect between the conductive foam 50 and the shielding membrane 40 .

[0044] Specifically, the buffer foam 30 is fixed to the back of the display screen body 20 by means of waterproof sealant or waterproof double-sided tape, so as to enhance the fixed connection effect between the buffer foam 30 and the display screen body 20 .

[0045] Specifically, in this embodiment, the shielding film 40 can be made of a metal wire mesh, a metal etching mesh or a conductive coating material.

[0046] Specifically, the fixing structure includes a pressing frame 60 and a fixing member arranged on the side of the shielding diaphragm 40 away from the display screen body 20. Part of the pressing frame 60 is connected to the casing 10, and the remaining part partially covers the side of the shielding diaphragm 40. The pressing frame 60 is provided with a fixing hole adapted to the fixing member. In this embodiment, the fixing member is a screw; the size of the hollow area inside the pressing frame 60 is smaller than the front size of the display screen body 20, that is, along the vertical direction, the side of the pressing frame 60 extends inward to cross the side of the display screen body 20, covering the side of the display screen body 20, so that after the pressing frame 60 is fixed to the casing 10 by screws, under the action of the pressing frame 60, the shielding diaphragm 40 and the conductive foam 50 arranged on the shielding diaphragm 40 remain relatively fixed to the casing 10, while the display screen body 20 is subjected to the force of the pressing frame 60 on all sides and also remains relatively fixed to the casing 10.

[0047] Specifically, each side edge of the pressing frame 60 is in a wedge-shaped structure that is inclined downward near the center of the pressing frame 60 .

[0048] Specifically, in the present embodiment, a groove for accommodating the conductive foam 50 and the shielding film 40 is further provided on the housing 10. After the shielding film 40 and the conductive foam 50 are installed in the groove, the thickness of the display screen device can be effectively reduced while the shielding film 40 and the housing 10 form an electromagnetic shielding space. Thus, the display screen device has a good electromagnetic shielding effect and is also light and thin.

[0049] Exemplarily, when installing the display screen device, the front face of the display screen body 20 and the conductive surface of the shielding film 40 are pasted together as a whole by full bonding or frame pasting. At this time, since the size of the shielding film 40 is larger than the size of the front face of the display screen body 20, a circle of exposed conductive area is formed around the conductive surface of the shielding film 40. The conductive foam 50 is pasted on the exposed conductive area, and the buffer foam 30 is pasted on the back of the display screen body 20 to form a display screen to be installed; the display screen to be installed is installed on the housing 10 so that the display screen body 20 It falls into the accommodating space of the casing 10, and the shielding membrane 40 and the conductive foam 50 are located in the groove of the casing 10, so that the shielding membrane 40 is away from the side of the display screen body 20 and is in the same plane with the side of the casing 10 facing the user, and the conductive foam 50 overlaps the casing 10, so that the shielding membrane 40 and the casing 10 form a complete electromagnetic shielding space, which has a shielding effect on external electromagnetic waves; the pressing frame 60 is installed on the casing 10 and fixed with screws to fix the relative positions of the shielding membrane 40, the display screen body 20 and the casing 10.

[0050] The above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model is described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the spirit and scope of the technical solution of the utility model.

Claims

1. A light and thin shock-resistant electromagnetic shielding display screen device, characterized in that: include: A casing, wherein a receiving space is provided in the casing; A display screen body is arranged in the accommodation space; A buffer member is arranged between the side of the display screen body away from the user and the housing; A shielding film is arranged on the side of the display screen body close to the user, and the size of the shielding film is larger than the size of the display screen body, so that a circle of exposed conductive area is formed around the shielding film; A conductive flexible member is arranged on the conductive area, and the conductive flexible member overlaps with the housing so that the shielding film and the housing form a complete electromagnetic shielding space; the conductive flexible member also serves as an anti-vibration member that keeps the display screen body close to the user and the housing in a buffer state; The fixing structure is used to fix the relative positions of the shielding film, the display screen body and the casing.

2. The light and thin shock-resistant electromagnetic shielding display screen device according to claim 1, characterized in that: The fixing structure comprises a pressing frame and a fixing piece which are arranged on a side of the shielding film away from the display screen body, and the pressing frame is provided with a fixing hole which is adapted to the fixing piece.

3. The light and thin shock-resistant electromagnetic shielding display screen device according to claim 2, characterized in that: The size of the hollow area inside the pressing frame is smaller than the size of the side of the display screen body close to the user, so that under the action of the pressing frame, the four sides of the display screen body are kept relatively fixed with the casing.

4. The light and thin shock-resistant electromagnetic shielding display screen device according to claim 3, characterized in that: Each side edge of the pressing frame is in a wedge-shaped structure that is inclined downward close to the center of the pressing frame.

5. The light and thin shock-resistant electromagnetic shielding display screen device according to claim 1, characterized in that: The housing is also provided with a groove for accommodating the conductive flexible member and the shielding film, so that the side of the shielding film away from the display screen body and the side of the housing close to the user are in the same plane.

6. The light and thin shock-resistant electromagnetic shielding display screen device according to claim 1, characterized in that: The conductive flexible member is conductive foam, and the buffer member is buffer foam.

7. The light and thin shock-resistant electromagnetic shielding display screen device according to claim 6, characterized in that: The size of the buffer foam is consistent with the size of the side of the display screen body away from the user.

8. The light and thin shock-resistant electromagnetic shielding display screen device according to claim 6, characterized in that: The conductive foam is fixed on the conductive area of ​​the shielding membrane by means of waterproof sealant or waterproof double-sided adhesive.

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