Button protection device, button control mechanism and display

Abstract

The utility model discloses a button protection device, a button control mechanism and a display, and relates to the technical field of electronic equipment protection, the button protection device comprises a shielding box, the shielding box is conductive, the shielding box is used for being arranged on one side, provided with button through holes, of a button integration box and covering all the button through holes, the shielding box is provided with a grounding device, and the grounding device is connected with the shielding box. The grounding device is used for grounding and is used for carrying out electromagnetic shielding on signal transmission of the button on-off control circuit so as to ensure normal work of the button in a complex environment; the button control mechanism comprises a button integration box and a button protection device, a control circuit corresponding to each button is arranged in the button integration box, and the button integration box and the button protection device jointly form a conductive closed shell to realize electromagnetic shielding; the displayer comprises a screen and a button control mechanism, all control circuits penetrate through through holes in the button integration box and are in signal connection with the screen, and sealing pieces are arranged at the through holes so that the button control mechanism can be closed.

Description

TECHNICAL FIELD

[0001] The utility model relates to electronic equipment protection technical field, especially button protection device, button control mechanism and display. BACKGROUND

[0002] Button is a kind of commonly used control electrical component, commonly used to connect or disconnect "control circuit", to achieve the purpose of controlling motor or other electrical equipment running one kind of switch, with the social development, the working environment of button component starts to become diversified and complex, and the adaptability of ordinary button component to harsh environment is poor, Chinese utility model patent CN204144106U provides a dustproof button box, is formed by the boss that extends to the outside in the box body, the top end of boss connects button cover, sets up through-hole on button cover, the contact rod of through-hole gap sliding fit button, can prevent dust from button cover into button box, but in complex environment, the button box does not have electromagnetic shielding function, external electromagnetic wave can interfere with the signal transmission of button component on-off control circuit, simultaneously, the electromagnetic wave generated by the signal transmission of box body interior also leaks to the outside of box body, is exploited by attacker. SUMMARY

[0003] The utility model discloses a button protection device, button control mechanism and display, to solve the problem of prior art, the signal transmission of button on-off control circuit is shielded, reduce the influence of external electromagnetic wave on the signal transmission of button on-off control circuit, and reduce the electromagnetic wave leakage to the outside by the signal of button on-off control circuit, guarantee the normal work of button in complex environment.

[0004] To achieve the above object, the utility model provides the following scheme:

[0005] The utility model provides a button protection device, it is characterized by including shielding box, the shielding box conducts electricity, the shielding box is used to set up in the side of button integrated box and covers all button through -hole, be provided with grounding device on the shielding box, the grounding device is used for grounding.

[0006] In some embodiments, it further includes the first conductive elastic plate, the first conductive elastic plate is used to be placed between the button integrated box and the shielding box, the shielding box and the button integrated box are connected by first fastener, and the first fastener can make the shielding box and the button integrated box compress the first conductive elastic plate, so that the first conductive elastic plate seals the gap between the shielding box and the button integrated box.

[0007] In some embodiments, the shielding box comprises a box body and a key panel, the box body is open on a side away from the button integrated box, the opening is sealed and covered with the key panel, the inner side of the key panel extends with a protrusion in the direction of the buttons to form buttons integrated with the key panel, the buttons correspond to the buttons one by one, and pressing the buttons can contact the buttons and move the buttons from the first position to the second position.

[0008] In some embodiments, the key panel and the box body are connected through a second fastener, and a second conductive elastic plate is further arranged between the key panel and the box body, the second fastener can press the key panel and the box body against the second conductive elastic plate, so that the second conductive elastic plate seals the gap between the key panel and the box body.

[0009] In some embodiments, the grounding device comprises a grounding layer arranged between the key panel and the second conductive elastic plate.

[0010] The utility model also provides a button control mechanism, including button integrated box and the button protection device of any one described above, the control circuit is provided with one in the button integrated box corresponding to each button, the button can switch between the first position and the second position, in the first position, the button disconnects the control circuit, in the second position, the button connects the control circuit.

[0011] In some embodiments, the shielding box side wall is provided with a shielding box through hole corresponding to the button through hole, a third conductive elastic plate is arranged on the inner wall of the side of the shielding box close to the button integrated box, a third conductive elastic plate through hole is arranged on the third conductive elastic plate, the button extends out from the button through hole and passes through the shielding box through hole and the third conductive elastic plate through hole and extends into the shielding box, one end of the button extending into the shielding box is provided with a first expansion part, the first expansion part is used to support the button on the third conductive elastic plate, and the third conductive elastic plate is used to seal the gap between the first expansion part and the inner wall of the shielding box.

[0012] In some embodiments, the first conductive elastic plate is fixed on the outer side wall of the shielding box close to the button integrated box, the button outer side wall is sleeved with a sealing gasket, and the sealing gasket is fixed on the first conductive elastic plate, the outer ring of the sealing gasket is in contact with the inner side wall of the button through hole, the inner ring of the sealing gasket is in contact with the button outer side wall, and the sealing gasket is used to seal the gap between the button outer side wall and the inner side wall of the button through hole.

[0013] In some embodiments, the button has a second expansion part away from one end of the first expansion part, the second expansion part is in contact with the inner side wall of the button through hole in the circumferential direction, the second expansion part slides along the inner side wall of the button through hole when the button switches between the first position and the second position, a elastic element is further arranged in the button through hole, one end of the elastic element is fixedly connected to the sealing gasket, the other end of the elastic element is fixedly connected to the second expansion part, and the elastic element is stretched and provides a rebound force for the button when the button is in the second position.

[0014] The utility model further provides a kind of display, including screen and the button control mechanism as any one of the above, through hole is set in the button integrated box, each control circuit of the button control mechanism passes through the through hole and is connected with the screen signal arranged outside the button integrated box, sealing element is provided at the through hole, to seal the gap between the through hole and each control circuit.

[0015] The utility model has the following technical effects relative to the prior art:

[0016] The utility model provides a kind of button protection device and button control device, by the shielding box of being able to conduct electricity is set in the one side of button integrated box that button through hole is arranged and covers all button through hole, and grounding device is set on shielding box, for electromagnetic shielding to the signal transmission of button on-off control circuit, when electromagnetic wave reaches shielding box surface, will generate induced charge in shielding box interior, grounding device is provided for the induced charge on shielding box a low impedance discharge channel, these charges can flow into earth rapidly by grounding device, to reduce the influence of external electromagnetic wave to the signal transmission of button on-off control circuit in button through hole, also can reduce the electromagnetic wave that the signal of button on-off control circuit generates leaks to outside by button through hole, ensure the normal work of button under complex environment.

[0017] Further, by setting the first conductive elastic plate between the button integrated box and the shielding box, and connecting the shielding box and the button integrated box by the first fastener, the first fastener makes the shielding box and the button integrated box press the first conductive elastic plate, so that the first conductive elastic plate can seal the gap between the shielding box and the button integrated box, thereby improving the waterproof performance of the buttons in the shielding box.

[0018] The utility model further provides a kind of display, by the shielding box of being able to conduct electricity is set in the one side of button integrated box that button through hole is arranged and covers all button through hole, and grounding device is set on shielding box, for electromagnetic shielding to the signal transmission of button on-off control circuit, ensure the normal work of button under complex environment, to further guarantee the stability of signal transmission between control circuit and screen. BRIEF DESCRIPTION OF DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed in the embodiments will be briefly introduced as follows. Obviously, the drawings described in the following embodiments are only some of the embodiments of the present application, and not all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those of ordinary skill in the art without creative labor fall within the scope of the present application.

[0020] Figure 1 It is a sectional view of the button control mechanism in an embodiment;

[0021] Figure 2 It is an enlarged view of area A of the sectional view of the button control mechanism in an embodiment;

[0022] Figure 3 It is an exploded view of the button control mechanism structure in an embodiment;

[0023] Figure 4 It is a bottom view of the key panel in an embodiment;

[0024] Figure 5 It is a structural schematic view of the shielding box in an embodiment;

[0025] Figure 6 It is a structural schematic view of the display in an embodiment;

[0026] Figure 7 It is a structural schematic view of the display in an embodiment;

[0027] In the figure: 1 - shielding box; 11 - box body; 12 - key panel; 13 - key; 14 - shielding box through hole; 2 - button integrated box; 21 - button; 22 - button through hole; 23 - first expansion part; 24 - sealing washer; 25 - second expansion part; 26 - elastic element; 3 - first conductive elastic plate; 31 - first fastener; 4 - second conductive elastic plate; 41 - second fastener; 5 - grounding device; 6 - third conductive elastic plate; 7 - screen. DETAILED DESCRIPTION

[0028] The technical solutions in the embodiments of the present application will be described clearly and completely in combination with the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, and not all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those of ordinary skill in the art without creative labor fall within the scope of the present application.

[0029] The purpose of this utility model is to provide a button protection device, a button control mechanism, and a display to solve the problems existing in the prior art. It provides electromagnetic shielding for the signal transmission of the button element to connect or disconnect the control circuit, reduces the influence of external electromagnetic waves on the button inside the shielding box, avoids electromagnetic leakage, and ensures the normal operation of the button in complex environments.

[0030] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0031] Example 1

[0032] This embodiment provides a button protection device, such as Figures 1-5 As shown, the device includes a shielding box 1, which is conductive. The shielding box 1 is installed on the side of the button integrated box 2 where the button through holes 22 are located and covers all the button through holes 22. The shielding box 1 is equipped with a grounding device 5, which is used for grounding and electromagnetic shielding of the signal transmission of the button 21 on / off control circuit. When electromagnetic waves reach the surface of the shielding box 1, induced charges are generated inside the shielding box 1. The grounding device 5 provides a low-impedance discharge path for the induced charges on the shielding box 1. These charges can quickly flow into the ground through the grounding device 5, thereby reducing the influence of external electromagnetic waves on the signal transmission of the button on / off control circuit inside the button through holes. It can also reduce the leakage of electromagnetic waves generated by the signal of the button on / off control circuit to the outside through the button through holes, thereby ensuring the normal operation of the button in complex environments.

[0033] In another embodiment of this invention, the shielding box 1 is made of aluminum plate and then subjected to conductive oxidation treatment. Aluminum is lightweight, which can reduce the overall weight of the shielding box and its cost is usually relatively low, making it easy to mass-produce and apply.

[0034] In another embodiment of this example, the shielding box 1 is made of copper. Copper has good shielding performance against electromagnetic radiation in high-frequency environments, and copper has excellent processing performance. It is easy to form shielding boxes of various shapes and specifications through forging, stamping, welding and other processes.

[0035] In another embodiment of this example, such as Figures 1-3As shown, the button protection device further comprises a first conductive elastic plate 3, which is arranged between the button integrated box 2 and the shielding box 1, the shielding box 1 and the button integrated box 2 are connected by the first fastener 31, and the first fastener 31 can press the first conductive elastic plate 3 tightly between the shielding box 1 and the button integrated box 2, so that the first conductive elastic plate 3 seals the gap between the shielding box 1 and the button integrated box 2. In a harsh environment, the first conductive elastic plate 3 can prevent external water from entering between the shielding box 1 and the button integrated box 2 and affecting the signal transmission of the button on-off control circuit, thereby improving the waterproof performance of the button 21 in the shielding box 1. In addition, the first conductive elastic plate 3 can also ensure the sealing of the electromagnetic shielding structure.

[0036] In another embodiment of the present embodiment, as shown in Figures 1-3 The shielding box 1 comprises a box body 11 and a key panel 12. The side of the box body 11 away from the button integrated box is open, and the key panel 12 covers the opening. The inside of the key panel 12 extends towards the button 21 to form a key 13 integrated with the key panel. The key 13 corresponds to the button 21 one by one. Pressing the key 13 can make the key 13 contact the button 21 and move the button 21 from the first position to the second position. The integral arrangement of the key panel 12 and the key 13 can make the shielding box only open on the side close to the button integrated box, and the rest of the area is completely sealed, ensuring that the shielding box plays a role in electromagnetic shielding and waterproof.

[0037] In another embodiment of the present embodiment, as shown in Figures 1-2 A mis-touch prevention gap is arranged between the key 13 and the button 21. The mis-touch prevention gap is not greater than the difference between the movable distance of the key 13 and the movable distance of the button 21. When a user accidentally touches the key 13, the key 13 only moves within the mis-touch prevention gap due to the small force during accidental touch, and does not contact the button 21, thereby improving the accuracy of the key panel 12 during use.

[0038] In another embodiment of the present embodiment, as shown in Figures 1-3 The key panel 12 and the box body 11 are connected by a second fastener 41. A second conductive elastic plate 4 is arranged between the key panel 12 and the box body 11. The second fastener 41 can press the second conductive elastic plate 4 tightly between the key panel 12 and the box body 11, so that the second conductive elastic plate 4 seals the gap between the key panel 12 and the box body 11. In a harsh environment, the second conductive elastic plate 4 can prevent external water from entering between the key panel 12 and the box body 11 and affecting the signal transmission of the button 21 on-off control circuit, thereby improving the waterproof performance of the button 21 in the shielding box 1. In addition, the second conductive elastic plate 4 can also ensure the continuity of the electromagnetic shielding structure.

[0039] In another embodiment of the present embodiment, as shown in Figure 4As shown, the grounding device 5 includes a grounding layer, which is arranged between the key panel 12 and the second conductive elastic plate 4, so that the induced charge on the shielding box 1 is transmitted to the ground through the grounding layer, thereby reducing the influence of external electromagnetic waves on the signal transmission of the button on-off control circuit in the button through hole and reducing the leakage of electromagnetic waves generated by the signal transmission of the button on-off control circuit to the outside, thereby ensuring the normal operation of the button in a complex environment.

[0040] In another embodiment of the present embodiment, the material of the grounding layer is tin-plated copper. The tin layer on the copper surface can prevent the copper from being oxidized, thereby avoiding the reduction of the conductivity of the grounding layer due to the oxidation of the copper. This material ensures that the grounding layer can still effectively play its grounding function in a complex environment such as humidity.

[0041] In another embodiment of the present embodiment, the material of the grounding layer is graphene. Graphene has the characteristics of high conductivity and high thermal conductivity, and can provide better grounding effect.

[0042] In another embodiment of the present embodiment, the materials of the first conductive elastic plate 3 and the second conductive elastic plate 4 are conductive rubber. The conductive rubber is made by uniformly dispersing conductive particles (such as carbon black and metal powder) in a rubber matrix. This material not only retains the good elasticity and sealing performance of rubber, but also has conductive ability.

[0043] Embodiment Two

[0044] The present embodiment provides a button control device, which comprises a button integrated box 2 and the button protection device in Embodiment Two. Figures 1-3 As shown, a control circuit is arranged in the button integrated box 2 corresponding to each button 21. The button 21 can be switched between a first position and a second position. In the first position, the button 21 disconnects the control circuit. In the second position, the button 21 connects the control circuit. The button integrated box 2 and the button protection device jointly form a conductive closed shell, thereby reducing the influence of external electromagnetic waves on the signal transmission of the button on-off control circuit in the shell and reducing the leakage of electromagnetic waves generated by the signal transmission of the button on-off control circuit to the outside, thereby ensuring the normal operation of the button in a complex environment.

[0045] In another embodiment of the present embodiment, the button integrated box 2 is made of copper. Copper has good conductivity and good shielding performance against electromagnetic radiation. Moreover, copper has excellent processing performance and is easy to be shaped into various shapes and specifications through processes such as forging, stamping and welding.

[0046] In another embodiment of the present embodiment, as shown in Figures 1-2As shown, the shielding box 1 side wall corresponding to the button through hole 22 is provided with a shielding box through hole 14, and the inner wall of the shielding box 1 close to the first expansion part 23 is provided with a third conductive elastic plate 6, and the third conductive elastic plate 6 is provided with a third conductive elastic plate through hole. The button 21 extends out of the button through hole 22 and passes through the shielding box through hole 14 and the third conductive elastic plate through hole and extends into the shielding box 1. The end of the button 21 extending into the shielding box 1 has the first expansion part 23, which is used to support the button 21 on the third conductive elastic plate 6 to avoid the button 21 falling from the shielding box through hole 14. The third conductive elastic plate 6 is used to seal the gap between the first expansion part 23 and the inner wall of the shielding box 1 to avoid external water entering the inside of the button integrated box 2 from the gap between the first expansion part 23 and the inner wall of the shielding box 1.

[0047] In another embodiment of the present embodiment, as shown in Figures 1-2 The maximum distance between the opposite outer edges of the first expansion part 23 is greater than the diameter of the shielding box through hole 14, and the first expansion part 23 is used to support the button 21 on the inner wall of the shielding box 1.

[0048] In another embodiment of the present embodiment, as shown in Figures 1-3 The first expansion part 23 is a sealing nut, a threaded groove is provided on the side wall of the end of the button extending into the shielding box, and the sealing nut is matched with the threaded groove. A nut gasket is further provided below the sealing nut to disperse the pressure of the sealing nut acting on the third conductive elastic plate. The sealing nut can support the button 21 on the inner wall of the shielding box 1, and can also seal the gap between the button 21 and the shielding box through hole 14 to improve the waterproof performance of the button 21.

[0049] In another embodiment of the present embodiment, as shown in Figures 1-3 The first conductive elastic plate 3 is fixed to the outer side wall of the shielding box 1 close to the button integrated box 2. The outer side wall of the button 21 is sleeved with a sealing gasket 24, and the sealing gasket 24 is fixed to the first conductive elastic plate 3. The outer ring of the sealing gasket 24 is in contact with the inner side wall of the button through hole 22, and the inner ring of the sealing gasket 24 is in contact with the outer side wall of the button 21. The sealing gasket 24 is used to seal the gap between the outer side wall of the button 21 and the inner side wall of the button through hole 22 to avoid external water entering the inside of the button integrated box 2 from the gap between the outer side wall of the button 21 and the inner side wall of the button through hole 22.

[0050] In another embodiment of the present embodiment, as shown in Figures 1-3As shown in the figure, the button 21 has a second expansion part 25 away from one end of the first expansion part 23, the second expansion part 25 is in contact with the inner side wall of the button through hole 22, and the second expansion part 25 slides along the inner side wall of the button through hole 22 when the button 21 switches between the first position and the second position, so as to guide the moving direction of the button 21, and the elastic element 26 is arranged in the button through hole 22, one end of the elastic element 26 is fixedly connected to the sealing gasket 24, and the other end of the elastic element 26 is fixedly connected to the second expansion part 2, so that the elastic element 26 is stretched and provides a rebound force for the button when the button 21 is in the second position, so that the button returns to the first position from the second position.

[0051] In another embodiment of the present embodiment, as shown in the figure, Figures 1-3 The elastic element 26 is a spring, the spring is sleeved on the outer side wall of the button 21, one end of the spring is fixedly connected to the sealing gasket 24, and the other end of the spring is fixedly connected to the second expansion part 2, so that the button 21 returns to the first position from the second position.

[0052] Embodiment three

[0053] The present embodiment provides a display, as shown in the figure, Figures 6-7 The button control mechanism in the second embodiment, a through hole is formed in the button integrated box, each control circuit of the button control mechanism passes through the through hole and is connected to the screen signal arranged outside the button integrated box, a sealing element is arranged at the through hole to seal the gap between the through hole and each control circuit, so that electromagnetic waves or water cannot pass through the through hole, and the stability of signal transmission between the control circuit and the screen is ensured.

[0054] The principle and implementation mode of the present embodiment are described in the specific examples, and the above embodiment is only used to help understand the method and core idea of the present embodiment; meanwhile, for those skilled in the art, according to the idea of the present embodiment, the specific implementation mode and application range will be changed. In conclusion, the content of the present embodiment should not be understood as a limitation of the present embodiment.

Claims

1. A button guard, comprising: The shielding box is electrically conductive and is arranged on the side of the button integrated box provided with button through holes and covers all the button through holes.

2. The button guard of claim 1, wherein, The first electrically conductive elastic plate is arranged between the button integrated box and the shielding box, and the shielding box and the button integrated box are connected by the first fastener, which can press the first electrically conductive elastic plate to seal the gap between the shielding box and the button integrated box.

3. The button guard of claim 2, wherein, The shielding box includes a box body and a key panel, the box body is open on the side away from the button integrated box, and the key panel is sealingly arranged on the opening, the inner side of the key panel extends outward to form keys integrated with the key panel, the keys correspond to the buttons one by one, and pressing the keys can make the keys contact the buttons and move the buttons from the first position to the second position.

4. The button guard of claim 3, wherein, The key panel and the box body are connected by the second fastener, and the second electrically conductive elastic plate is arranged between the key panel and the box body, and the second fastener can press the second electrically conductive elastic plate to seal the gap between the key panel and the box body.

5. The button guard of claim 4, wherein, The grounding layer is arranged between the key panel and the second electrically conductive elastic plate.

6. A push button control mechanism characterized by, The button integrated box is provided with a control circuit corresponding to each button, and the button can be switched between the first position and the second position, in the first position, the button disconnects the control circuit, and in the second position, the button connects the control circuit.

7. The pushbutton control mechanism of claim 6, wherein, The shielding box through hole is arranged on the side wall of the shielding box corresponding to the button through hole, the third electrically conductive elastic plate is arranged on the inner wall of the shielding box close to the button integrated box, the third electrically conductive elastic plate through hole is arranged on the third electrically conductive elastic plate, the button extends out of the button through hole, passes through the shielding box through hole and the third electrically conductive elastic plate through hole, and extends into the shielding box, the first expansion part is arranged at the end of the button extending into the shielding box, the first expansion part is used for supporting the button on the third electrically conductive elastic plate, and the third electrically conductive elastic plate is used for sealing the gap between the first expansion part and the inner wall of the shielding box.

8. The pushbutton control mechanism of claim 7, wherein, The first electrically conductive elastic plate is fixed on the outer side wall of the shielding box close to the button integrated box, the sealing gasket is sleeved on the outer side wall of the button, and the sealing gasket is fixed on the first electrically conductive elastic plate, the outer ring of the sealing gasket contacts the inner wall of the button through hole, the inner ring of the sealing gasket contacts the outer side wall of the button, and the sealing gasket is used for sealing the gap between the outer side wall of the button and the inner wall of the button through hole.

9. The pushbutton control mechanism of claim 8, wherein, The button has a second expansion part away from one end of the first expansion part, the second expansion part is in contact with the inner side wall of the button through hole in the circumferential direction, and the circumferential direction of the second expansion part slides along the inner side wall of the button through hole when the button switches between the first position and the second position. An elastic element is further arranged in the button through hole, one end of the elastic element is fixedly connected to the sealing ring, and the other end of the elastic element is fixedly connected to the second expansion part. When the button is in the second position, the elastic element is stretched and provides a resilient force for the button.

10. A display, characterized by The button control mechanism includes a screen and any one of claims 6-9, a through hole is formed in the button integrated box, each control circuit of the button control mechanism passes through the through hole and is connected to the screen signal arranged outside the button integrated box, and a sealing element is arranged at the through hole to seal the gap between the through hole and each control circuit.

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