Self-sealing splicable key and control equipment comprising same

Abstract

The invention discloses a self-sealing splicable key, the self-sealing splicable key comprises a rubber key (1), a circuit board (2) and a fastener (3), the fastener (3) fixes the rubber key (1) to an installation device (4) through the circuit board (2); a circle of sealing protrusions (11) are arranged on the face, back on to the circuit board (2), of the rubber key (1). The self-sealing key capable of being spliced has a waterproof effect after being installed, and the waterproof effect can be reliably guaranteed in the using process.

Description

Technical Field

[0001] The invention relates to the field of key sealing, in particular to a self-sealing splicable key and a control device comprising the key. Background Art

[0002] Control display system products are not only used to display information but also to control operations, among which the control operation of brightness, contrast and power supply is essential. Usually, control display system products are designed with function buttons such as "signal", "menu", "up", "down", "left", "right" and "power"; the main functions are as follows: the "signal" key is used to switch the current channel; the "menu", "up", "down", "left" and "right" keys are combination keys, which can be used in combination to adjust the brightness, contrast, color temperature and other parameters of the reinforced display; press the "power" key to switch the control display system product between standby and working status. There are various combinations of other function buttons.

[0003] At present, the control and display system products use button labels to design more functional buttons. The button labels are covered on the control and display system product structure with adhesive stickers, and the adhesive isolates water vapor to achieve the sealing of the function buttons. However, the button labels are prone to warping during long-term use or high-temperature testing, which makes the buttons ineffective and the waterproof effect worse, and affects the appearance of the control and display system products. Summary of the invention

[0004] In order to overcome the problem in the prior art that the waterproof effect of button labels deteriorates after long-term use, the present invention provides a self-sealing splicable button, which can have a waterproof effect after installation and can be reliably guaranteed during use.

[0005] In order to achieve the above-mentioned object, the present invention provides a self-sealing splicable key, the self-sealing splicable key comprising a rubber key, a circuit board and a fastener, the circuit board fixing the rubber key to a mounting device through the fastener;

[0006] A circle of sealing protrusions is arranged on a side of the rubber button facing away from the circuit board.

[0007] Preferably, the width of the sealing protrusion is set to d, 0.3mm≤d≤0.8mm.

[0008] Preferably, the height of the sealing protrusion is set to h, 0.3mm≤h≤0.8mm.

[0009] The present invention also provides a control device using the self-sealing splicable key, the control device further comprising a mounting device, the self-sealing splicable key being detachably connected to the mounting device via the fastener;

[0010] The sealing protrusion abuts against the mounting device, a mounting hole is provided on the mounting device, and the rubber button is at least partially located in the mounting hole.

[0011] Preferably, a circle of sealing grooves is provided on the mounting device, the sealing grooves cooperate with the sealing protrusions, and the depth of the sealing grooves is smaller than the height of the sealing protrusions.

[0012] Preferably, the width of the sealing groove is set to D, the depth of the sealing groove is set to H, 0.1≤Dd≤0.3mm and 0.1≤hH≤0.3mm.

[0013] Preferably, the fastener is configured as a fastening screw, the circuit board is provided with a through hole cooperating with the fastening screw, and the mounting device is provided with a fastening hole cooperating with the fastening screw.

[0014] Preferably, the self-sealing splicable keys are provided in plurality, and the installation device is correspondingly provided with a plurality of sealing grooves cooperating with the self-sealing splicable keys.

[0015] Preferably, a pressure relief groove is provided on a side of the rubber button facing the circuit board.

[0016] According to the above technical solution, a circle of sealing protrusions is provided on the rubber key of the present invention, the fastener fixes the circuit board to the installation device, the rubber key is located between the circuit board and the installation device, and a circle of sealing protrusions is provided on the side of the rubber key facing the installation device. In the process of the fastener installing the circuit board, the fastener applies pressure to the circuit board and finally squeezes the rubber key to fit with the installation device. In the process, the sealing protrusion will first contact with the installation device. Since the contact area between the sealing protrusion and the installation device is limited, the pressure on the contact surface between the sealing protrusion and the installation device is relatively large. Under the action of this pressure, the sealing protrusion is deformed, the height of the sealing protrusion becomes smaller, and the width increases. A circle of tightly contacted connecting belts is formed between the deformed sealing protrusion and the installation device. Through this connecting belt, the rubber key achieves a sealing effect on the circuit board located behind the rubber key.

[0017] After the self-sealing spliced ​​key is installed, the pressure between the circuit board and the installation device can always be maintained under the action of the fastener. Under the action of this pressure, the deformation state of the sealing protrusion will also be effectively maintained. Therefore, during use, the stable sealing effect between the rubber key and the installation device can be reliably guaranteed.

[0018] Therefore, by using this self-sealing splicable key, after installation, the self-sealing splicable key can obtain a reliable sealing effect, and this sealing effect can also be reliably guaranteed during use.

[0019] In one implementation, the fastener is configured as a buckle, and a hole matching the buckle is provided on the mounting device. The circuit board and the rubber button 1 can be mounted on the mounting device by pressing the buckle into the mounting device. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a main view of a control device;

[0021] Figure 2 It is a BB cross-section;

[0022] Figure 3 It is a partial view of an installed device;

[0023] Figure 4 It is the cross-section of AA;

[0024] Figure 5 It is a front view of a rubber button;

[0025] Figure 6 yes Figure 5 Left view of

[0026] Figure 7 yes Figure 5 Rear view of.

[0027] Description of Reference Numerals

[0028] 1Rubber button 2Circuit board

[0029] 3 Fastener 11 Sealing protrusion

[0030] 4 Installation equipment 41 Sealing groove

[0031] 12 pressure relief groove 42 installation hole

[0032] 43 fastening holes DETAILED DESCRIPTION

[0033] In the present invention, unless otherwise stated, directional words such as "away from, up, down, sideways, both ends" generally refer to the orientation of the term in normal use, or are common names understood by those skilled in the art, and should not be regarded as limitations on the term.

[0034] A self-sealing splicable key, the self-sealing splicable key comprising a rubber key 1, a circuit board 2 and a fastener 3, the fastener 3 fixing the rubber key 1 to a mounting device 4 through the circuit board 2;

[0035] A circle of sealing protrusions 11 is arranged on a side of the rubber button 1 facing away from the circuit board 2 .

[0036] Through the implementation of the above technical solution, a circle of sealing protrusions 11 is provided on the rubber key 1, the fastener 3 fixes the circuit board 2 to the mounting device 4, the rubber key 1 is located between the circuit board 2 and the mounting device 4, and a circle of sealing protrusions 11 is provided on the side of the rubber key 1 facing the mounting device 4. In the process of the fastener 3 installing the circuit board 2, the fastener 3 applies pressure to the circuit board 2 and finally squeezes the rubber key 1 to fit with the mounting device 4. In the process, the sealing protrusion 11 will first contact with the mounting device 4. Due to the limited contact area between the sealing protrusion 11 and the mounting device 4, a large pressure is generated on the contact surface between the sealing protrusion 11 and the mounting device 4. Under the action of this pressure, the sealing protrusion 11 is deformed, specifically, the height of the sealing protrusion 11 becomes smaller and the width increases. A circle of tightly contacted connecting belts is formed between the deformed sealing protrusion 11 and the mounting device 4. Through this connecting belt, the rubber key 1 achieves the sealing effect on the circuit board 2 located behind the rubber key 1.

[0037] After the self-sealing splicable key is installed, under the action of the fastener 3, the pressure between the circuit board 2 and the mounting device 4 can always be maintained. Under the action of this pressure, the deformation state of the sealing protrusion 11 will also be effectively maintained. Therefore, during use, the stable sealing effect between the rubber key 1 and the mounting device 4 can be reliably guaranteed.

[0038] Therefore, by using this self-sealing splicable key, after installation, the self-sealing splicable key can obtain a reliable sealing effect, and this sealing effect can also be reliably guaranteed during use.

[0039] In one implementation, the fastener 3 is configured as a buckle, and a hole matching the buckle is provided on the mounting device 4. By pressing the buckle into the mounting device 4, the circuit board 2 and the rubber button 1 can be mounted to the mounting device 4.

[0040] In this embodiment, preferably, the width of the sealing protrusion 11 at its widest point is set to d, and 0.3 mm≤d≤1 mm.

[0041] The cross-section of the sealing protrusion 11 is set to an inverted U shape, and the width of the sealing protrusion 11 decreases as its height increases, that is, the width of the bottom of the sealing protrusion 11 is large and the width of the top is small. Therefore, as the height increases, the sealing protrusion 11 with a higher height is easier to deform than the sealing protrusion 11 at the bottom.

[0042] Moreover, the wider sealing protrusion 11 has better strength and is less likely to deform. Therefore, to obtain a better sealing effect for the wider sealing protrusion 11, the fastener 3 needs to apply a greater pressure to the circuit board 2. Since the strength of the circuit board 2 is limited, the fastener 3 cannot apply a large pressure to the circuit board 2.

[0043] Preferably, the width of the sealing protrusion 11 is set to be no greater than 1 mm, so that during the installation of the self-sealing splicable key, the sealing protrusion 11 can be deformed more easily, so that the seal can obtain a sufficiently reliable sealing effect under the pressure of the fastener 3.

[0044] However, the width of the sealing protrusion 11 needs to be greater than 0.3 mm to ensure the strength of the sealing protrusion 11 itself and avoid the sealing protrusion 11 from breaking during the installation process, thereby affecting the sealing effect between the rubber button 1 and the installation device 4; at the same time, the sealing protrusion 11 has a certain strength, which can also avoid the sealing protrusion 11 from twisting and deforming during the installation process, resulting in a gap between the rubber button 1 and the installation device 4, thereby affecting the sealing effect between the rubber button 1 and the installation device 4.

[0045] In this embodiment, preferably, the height of the sealing protrusion 11 is set to h, 0.3 mm ≤ h ≤ 0.8 mm.

[0046] Contrary to the fact that the greater the width of the sealing protrusion 11, the better the strength, the greater the height of the sealing protrusion 11, the worse the strength. Therefore, if the width of the sealing protrusion 11 is set to a larger value, its height needs to be increased accordingly so that the top of the sealing protrusion 11 can be deformed after being subjected to limited pressure.

[0047] After the sealing protrusion 11 is subjected to pressure, the height of the top thereof decreases and the width increases, thereby achieving a sealing effect. Therefore, the height of the sealing protrusion 11 should not be less than 0.3 mm, so that the sealing protrusion 11 of the cover can have enough height for deformation.

[0048] Since the height of the sealing protrusion 11 decreases after deformation, the best state is that after the sealing protrusion 11 is deformed, the rubber key 1 can fit with the surface of the installation device 4, which can not only achieve sealing but also achieve dustproof effect. Preferably, the height of the sealing protrusion 11 should not be greater than 0.8 mm, so that after the sealing protrusion 11 is deformed, the gap between the rubber key 1 and the surface of the installation device 4 is very small, so that it has a certain dustproof effect and beautiful appearance.

[0049] A control device using a self-sealing splicable key, the control device further comprising a mounting device 4, the self-sealing splicable key being detachably connected to the mounting device 4 via a fastener 3;

[0050] The rubber button 1 is against the mounting device 4 . The mounting device 4 is provided with a mounting hole 42 . At least a part of the rubber button 1 is located in the mounting hole 42 .

[0051] The circuit board 2 and the rubber button 1 can be mounted to the surface of the mounting device 4 by means of the fastener 3 , and the button portion of the rubber button 1 can be exposed to the surface of the mounting device 4 through the mounting hole 42 , making it convenient for operators to operate the button portion.

[0052] A circle of sealing protrusions 11 is provided on the rubber key 1. The fastener 3 fixes the circuit board 2 to the mounting device 4. The rubber key 1 is located between the circuit board 2 and the mounting device 4. A circle of sealing protrusions 11 is provided on the side of the rubber key 1 facing the mounting device 4. In the process of the fastener 3 installing the circuit board 2, the fastener 3 applies pressure to the circuit board 2 and finally squeezes the rubber key 1 to the mounting device 4. In the process, the sealing protrusion 11 will first contact the mounting device 4. Since the contact area between the sealing protrusion 11 and the mounting device 4 is limited, the pressure on the contact surface between the sealing protrusion 11 and the mounting device 4 is relatively large. Under the action of the pressure, the sealing protrusion 11 is deformed, the height of the sealing protrusion 11 becomes smaller, and the width increases. A circle of tightly contacted connecting belts is formed between the deformed sealing protrusion 11 and the mounting device 4. Through the connecting belt, the rubber key 1 achieves the sealing effect on the circuit board 2 located behind the rubber key 1.

[0053] Under the action of the fastener 3, the pressure between the circuit board 2 and the mounting device 4 can always be maintained. Under the action of this pressure, the deformation state of the sealing protrusion 11 will also be effectively maintained. Therefore, a stable sealing effect between the rubber button 1 and the mounting device 4 can be guaranteed during use.

[0054] Therefore, by controlling the device in this way, the buttons can be sealed and waterproofed.

[0055] In this embodiment, preferably, a circle of sealing grooves 41 is provided on the mounting device 4 , the sealing grooves 41 cooperate with the sealing protrusions 11 , and the depth of the sealing grooves 41 is less than the height of the sealing protrusions 11 .

[0056] In order to achieve a better sealing effect, a circle of sealing grooves 41 is provided on the mounting device 4, and the sealing grooves 41 cooperate with the sealing protrusions 11. When the fastener 3 applies pressure to the circuit board 2, the sealing protrusions 11 will be squeezed into the sealing grooves 41 and deformed in the sealing grooves 41. The sealing protrusions 11 are flattened, and their height decreases and their width increases. As the width of the sealing protrusions 11 increases, the sealing protrusions 11 fill the sealing grooves 41. Therefore, the sealing protrusions 11 cooperate with the sealing grooves 41 to form a circle of isolation rings. Through the isolation rings, the control device can achieve a reliable sealing effect.

[0057] Specifically, since the height of the sealing protrusion 11 is greater than the depth of the sealing groove 41, the volume of the top of the sealing protrusion 11 that is higher than the depth of the sealing groove 41 is used to deform, and the width of these parts is increased after being flattened, and they are filled in the sealing groove 41 to seal the sealing groove 41. At this time, the bottom of the sealing protrusion 11 fits with the top of the sealing groove 41, so at the position where the bottom of the sealing protrusion 11 fits with the top of the sealing groove 41, there is a certain sealing effect between the rubber button 1 and the installation device 4, which can improve the waterproof effect of the control device at the button position.

[0058] In this embodiment, preferably, the width of the sealing groove 41 is set to D, the depth of the sealing groove 41 is set to H, 0.1≤Dd≤0.3 mm and 0.2≤hH≤0.5 mm.

[0059] The width of the sealing groove 41 is set to be larger than the width of the sealing protrusion 11, which will be beneficial to the relative positioning between the rubber button 1 and the installation device 4, so that the sealing protrusion 11 can be easily placed in the sealing groove 41. Subsequently, the fastener gradually applies pressure during the installation process, and the sealing protrusion 11 is deformed in the sealing groove 41 to fill the sealing groove 41, thereby achieving a sealing effect between the sealing groove and the sealing groove.

[0060] Preferably, the difference between the width of the sealing groove 41 and the width of the sealing protrusion 11 should be no less than 0.1 mm and no more than 0.3 mm. When the value of Dd is no less than 0.1 mm, the sealing protrusion 11 can be easily positioned relative to the sealing groove 41. When the value of Dd is no more than 0.3 mm, the gap between the sealing groove 41 and the sealing protrusion 11 in a natural state is small, so that the sealing groove 41 can be easily sealed after the sealing protrusion 11 is deformed.

[0061] If the width of the sealing protrusion 11 is small, hH can be set to a larger value so that the sealing protrusion 11 can have more volume for deformation, and the top of the sealing protrusion 11 deforms and fills the sealing groove 41 to achieve sealing of the sealing groove 41.

[0062] If the width of the sealing protrusion 11 is large, hH can be set to a smaller value so that a smaller height deformation can obtain a sufficient deformation volume, and the deformation volume is filled in the sealing groove 41 to achieve a sealing effect on the sealing groove 41.

[0063] Preferably, the value of hH should be not less than 0.1mm and not more than 0.3mm. When the value of hH is greater than 0.3mm, it is difficult for the bottom of the sealing protrusion 11 to fit with the top of the sealing groove 41. Therefore, there may be a large gap between the rubber button 1 and the mounting device 4, which not only affects the appearance of the control device, but also makes it easy for dust to accumulate in the gap. When the value of hH is less than 0.1mm, the deformation volume of the sealing protrusion 11 may not be large enough, so that the sealing protrusion 11 cannot achieve effective sealing with the sealing groove 41 through deformation.

[0064] In this embodiment, preferably, the fastener 3 is configured as a fastening screw, the circuit board 2 is provided with a through hole matched with the fastening screw, and the mounting device 4 is provided with a fastening hole 43 matched with the fastening screw.

[0065] Fixing the circuit board 2 by tightening the screws can achieve a detachable connection of the circuit board 2, making it easy to replace the rubber button 1 or the circuit board 2.

[0066] In order to ensure the strength between the fastening screw and the mounting device 4 , the mounting device 4 has increased thickness at the position of the fastening hole 43 .

[0067] In this embodiment, preferably, a plurality of self-sealing splicable keys are provided, and the installation device 4 is correspondingly provided with a plurality of sealing grooves 41 cooperating with the self-sealing splicable keys.

[0068] If multiple control buttons are required on the control device, these control buttons can be set as self-sealed spliced ​​buttons.

[0069] In a real-time manner, a plurality of self-sealing splicable buttons are fixed respectively by fasteners 3 and mounting devices 4 .

[0070] In another embodiment, these control buttons can be set on the same circuit board 2, and the corresponding rubber button 1 can also be set as one. A sealing protrusion 11 is set corresponding to the position of each control button, and a plurality of sealing grooves 41 are also set one by one on the mounting device 4. The circuit board 2 set as an integral part is fixed to the mounting device 4 by the fastener 3. During the installation process, the circuit board 2 squeezes the rubber button 1 to the surface of the mounting device 4, and the sealing protrusion 11 is deformed and sealed with the sealing groove 41, thereby achieving a sealing effect on the circuit board 2.

[0071] In this embodiment, preferably, a pressure relief groove 12 is provided on one side of the rubber button 1 facing the circuit board 2.

[0072] When the operator presses the button, the rubber button 1 will move toward the circuit board 2. Through the pressure relief groove 12, the air originally located between the rubber button 1 and the circuit board 2 is quickly discharged, so that the operator can press the rubber button 1 smoothly without feeling much resistance. When the pressing is completed, the pressure originally acting on the rubber button 1 disappears, and the rubber button 1 begins to reset. At this time, the external air will enter between the rubber button 1 and the circuit board 2 through the pressure relief groove 12. Under the push of the air, the rubber button 1 can recover quickly, so that the button can rebound quickly, which is convenient for the next operation.

[0073] Preferably, a gap is provided between the sealing protrusion 11 and the mounting hole 42, so that when the rubber button 1 is pressed and deformed, the sealing protrusion 11 is not affected by the deformation and still maintains its positional relationship with the sealing groove 41 unchanged, thereby ensuring the sealing effect of the sealing protrusion 11 and the sealing groove 41 during use.

[0074] The preferred embodiments of the present invention are described in detail above in conjunction with the accompanying drawings. However, the present invention is not limited to the specific details in the above embodiments. Within the technical concept of the present invention, a variety of simple modifications can be made to the technical solution of the present invention, and these simple modifications all belong to the protection scope of the present invention.

[0075] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable manner without contradiction. In order to avoid unnecessary repetition, the present invention will not further describe various possible combinations.

[0076] In addition, various embodiments of the present invention may be arbitrarily combined, and as long as they do not violate the concept of the present invention, they should also be regarded as the contents disclosed by the present invention.

Claims

1. A self-sealing splicable key, characterized in that: The self-sealing splicable key comprises a rubber key (1), a circuit board (2) and a fastener (3), wherein the circuit board (2) fixes the rubber key (1) to a mounting device (4) via the fastener (3); A circle of sealing protrusions (11) is provided on a side of the rubber button (1) facing away from the circuit board (2).

2. The self-sealing splicable key according to claim 1, characterized in that: The width of the sealing protrusion (11) is set to d, 0.3mm≤d≤0.8mm.

3. The self-sealing splicable key according to claim 2, characterized in that: The height of the sealing protrusion (11) is set to h, 0.3mm≤h≤0.8mm.

4. A control device comprising the self-sealing splicable key according to any one of claims 1 to 3, the control device further comprising a mounting device (4), the self-sealing splicable key being detachably connected to the mounting device (4) via the fastener (3); The sealing protrusion (11) abuts against the mounting device (4); a mounting hole (42) is provided on the mounting device (4); and the rubber button (1) is at least partially located in the mounting hole (42).

5. The control device according to claim 4, characterized in that The mounting device (4) is provided with a circle of sealing grooves (41), the sealing grooves (41) cooperate with the sealing protrusions (11), and the depth of the sealing grooves (41) is less than the height of the sealing protrusions (11).

6. The control device according to claim 5, characterized in that The width of the sealing groove (41) is set to D, the depth of the sealing groove (41) is set to H, 0.1≤Dd≤0.3mm and 0.1≤hH≤0.3mm.

7. The control device according to claim 6, characterized in that The fastener (3) is configured as a fastening screw, the circuit board (2) is provided with a through hole that cooperates with the fastening screw, and the mounting device (4) is provided with a fastening hole (43) that cooperates with the fastening screw.

8. The control device according to claim 5, characterized in that The self-sealing splicable keys are arranged in plurality, and the installation device (4) is correspondingly provided with a plurality of sealing grooves (41) cooperating with the self-sealing splicable keys.

9. The control device according to claim 4, characterized in that: A pressure relief groove (12) is provided on a side of the rubber button (1) facing the circuit board (2).

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