Waterproof structure for keys of control panel
By adopting a double sealing layer structure at the control panel buttons, including waterproof foam and waterproof membrane, the problem of poor waterproofing effect is solved, and high waterproofing level and stability are achieved to ensure that the buttons work normally in harsh environments.
Patent Information
- Application Number
- CN202422395324.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-30
- Publication Date
- 2025-08-19
- Estimated Expiration
- 2034-09-30
AI Technical Summary
The existing control panel buttons have poor waterproofing, and liquids are prone to enter along the gaps, causing the circuit board to oxidize, resulting in product failure.
It adopts a double sealing layer structure, including waterproof foam and waterproof membrane. The waterproof foam is located between the shell and the button, and the waterproof membrane is located between the button and the electronic component key module/dust layer to enhance the sealing effect.
The waterproofing level is improved to IP60, and the stability and service life of the control panel buttons are enhanced, which prevents the entry of liquid and causes the circuit board to oxidize, ensuring normal operation under harsh conditions.
Smart Images
Figure CN223245465U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of waterproof keys, in particular to a waterproof structure for keys on a control panel. Background Art
[0002] The IP rating, or Ingress Protection rating, is an international standard that defines the protection provided by electrical equipment enclosures against solid foreign objects (such as dust) and liquids (such as water). The rating consists of two numbers: the first indicates the degree of dust resistance, and the second indicates the degree of water resistance. The higher the number, the higher the level of protection.
[0003] For example, an IP67-rated device means it's completely dustproof (dustproof level 6) and can withstand being submerged in up to 1 meter of water for 30 minutes without damage (waterproof level 7). If a device's IP rating includes an X, such as IPX7, this means the manufacturer didn't provide data on dust resistance, but the device has water resistance level 7.
[0004] When purchasing equipment with a control panel, it's important to understand its IP rating, especially if you plan to use the equipment outdoors or in specialized environments. For example, outdoor lighting may require a high waterproof rating, while industrial equipment may require a high dustproof rating. These ratings ensure that the equipment will function properly in harsh conditions and protect internal components from damage.
[0005] However, there are several problems with the waterproofing of control panel buttons on the market: the waterproofing effect is poor and the IP rating is low; water, oil and other liquids can enter the interior through the gaps of individual buttons, causing oxidation of the circuit board lines and leading to product failure. Utility Model Content
[0006] The purpose of the present invention is to provide a waterproof structure for control panel buttons to solve the problems raised in the above background technology.
[0007] To achieve the above objectives, the present invention provides the following technical solutions:
[0008] A control panel button waterproof structure, comprising:
[0009] A housing, wherein the housing is provided with a button hole for installing a button;
[0010] A dustproof layer, the dustproof layer is located on the outer shell and is provided with dustproof holes;
[0011] A circuit board, on which an electronic component key module is mounted, the electronic component key module being adapted to be inserted into the dustproof hole and used to abut against the key;
[0012] Double sealing layers, the double sealing layers are used for sealing between the housing and the keys, and for isolating between the keys and the electronic component key module / dustproof layer.
[0013] Preferably, the double sealing layer includes a waterproof foam and a waterproof membrane, the waterproof foam is located between the housing and the button, and the waterproof membrane is located between the button and the electronic component button module / dustproof layer.
[0014] Preferably, the waterproof foam is made of EVA and has adhesive backing on both sides. A through groove for inserting the key is opened on the waterproof foam, and the diameter of the through groove is the same as the diameter of the key hole.
[0015] Preferably, the waterproof membrane is made of a PET mold, and the thickness of the PET mold is 0.4 to 0.6 mm.
[0016] Preferably, there is an interference fit between the button and the through slot.
[0017] Preferably, the dustproof layer is made of EVA foam.
[0018] Preferably, the electronic component key module is provided with a cover at the bottom and an LED light at the side. An extrusion buffer pad is pasted on the cover, and the extrusion buffer pad is made of EVA foam.
[0019] Preferably, a fixing column is provided in the shell, and a positioning hole for being fitted on the fixing column is provided on one side of the waterproof foam, the waterproof membrane and the dustproof layer.
[0020] Preferably, the side surface of the button has an inner groove, and the waterproof foam has a protrusion inserted into the inner groove.
[0021] Compared with the prior art, the beneficial effects of the present invention are:
[0022] This utility model utilizes a double sealing layer, comprising a waterproof foam and a waterproof membrane. The waterproof foam is located between the housing and the keys, and the waterproof membrane is located between the keys and the electronic component key module / dustproof layer. This enhances the key panel's waterproof rating, even to IP60, thereby increasing the service life and stability of the control panel keys. This prevents liquids such as water and oil from entering through the gaps between individual keys, causing oxidation of the circuit board lines and leading to control panel key failures. This ensures that the control panel keys remain waterproof and function properly even under adverse conditions, protecting internal components from damage. BRIEF DESCRIPTION OF THE DRAWINGS
[0023] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.
[0024] Figure 1 This is an exploded schematic diagram of an exemplary embodiment of the structure of the present utility model;
[0025] Figure 2 This is a schematic diagram of an assembly of an exemplary embodiment of the structure of the present utility model;
[0026] Figure 3 This is another schematic diagram of the cooperation between the button and the through slot of an exemplary embodiment of the present utility model.
[0027] In the figure: 1- shell, 2- button, 3- waterproof foam, 4- waterproof membrane, 5- dustproof layer, 6- circuit board, 7- through slot, 8- dustproof hole, 9- electronic component button module, 10- cover, 11- extrusion buffer pad, 12- LED light, 13- fixing column, 14- button hole, 15- positioning hole, 16- inner groove, 17- protrusion. DETAILED DESCRIPTION
[0028] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only some embodiments of the present invention, not all embodiments. The following description of at least one exemplary embodiment is actually only illustrative and is in no way intended to limit the present invention and its application or use. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.
[0029] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, they indicate the presence of features, steps, operations, devices, components and / or combinations thereof.
[0030] Unless otherwise specifically stated, the relative arrangement of the parts and steps, the numerical expressions and the numerical values set forth in these embodiments do not limit the scope of the present invention. At the same time, it should be understood that, for ease of description, the sizes of the various parts shown in the drawings are not drawn according to the actual proportional relationship. The techniques, methods and equipment known to those of ordinary skill in the relevant art may not be discussed in detail, but where appropriate, the techniques, methods and equipment should be considered as part of the authorization specification. In all examples shown and discussed here, any specific values should be interpreted as being merely exemplary and not as limitations. Therefore, other examples of the exemplary embodiments may have different values. It should be noted that similar numbers and letters represent similar items in the following figures, and therefore, once an item is defined in one figure, it does not need to be further discussed in subsequent figures.
[0031] In the description of the present invention, it needs to be understood that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "horizontal, vertical, vertical, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the device or element referred to must have a specific direction or be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the scope of protection of the present invention; the directional words "inside and outside" refer to the inside and outside relative to the outline of each component itself.
[0032] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used herein to describe the spatial positional relationship of a device or feature to other devices or features as shown in the figures. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figures. For example, if the device in the drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.
[0033] In addition, it should be noted that the use of words such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. Unless otherwise stated, the above words have no special meaning and therefore cannot be understood as limiting the scope of protection of this utility model.
[0034] See also Figures 1 to 3 , the utility model provides a technical solution:
[0035] In the existing technology, the dustproof levels are as follows: -0: no protection; -1: prevent the entry of solid foreign objects larger than 50mm; -2: prevent the entry of solid foreign objects larger than 12.5mm; -3: prevent the entry of solid foreign objects larger than 2.5mm; -4: prevent the entry of solid foreign objects larger than 1mm; -5: prevent a certain amount of dust from entering, but does not affect the normal operation of the equipment; -6: completely dustproof.
[0036] The waterproof levels are as follows: -0: No protection; -1: Protected against vertically falling water drops; -2: Protected against vertically falling water drops when the casing is tilted no more than 15°; -3: Protected against jet water, the water flow is sprayed within a 60° range; -4: Protected against splashing water, water splashes onto the device from any direction; -5: Protected against water jets, the water column ejected from the nozzle is sprayed onto the device from any angle; -6: Protected against large waves or strong water jets; -7: Protected against the impact of immersion, the device can be immersed in water for a short time; -8: Protected against long-term immersion, the device can be immersed in water for a long time.
[0037] A control panel button waterproof structure, comprising:
[0038] A housing 1 is provided with a button hole 14 for installing a button 2;
[0039] A dustproof layer 5 is located on the housing 1 and is provided with dustproof holes 8;
[0040] A circuit board 6, on which an electronic component key module 9 is mounted, which is adapted to be inserted into the dustproof hole 8 and is used to press against the key 2;
[0041] The double sealing layer is used for sealing between the housing 1 and the key 2 , and for isolating between the key 2 and the electronic component key module 9 / dustproof layer 5 .
[0042] In one embodiment, the dual sealing layers include waterproof foam 3 and waterproof membrane 4. The waterproof foam 3 is positioned between the housing 1 and the key 2, while the waterproof membrane 4 is positioned between the key 2 and the electronic component key module 9 / dustproof layer 5. The waterproof foam 3 is made of EVA and has adhesive backing on both sides. A through slot 7 is defined in the waterproof foam 3 for inserting the key 2. The diameter of the through slot 7 is the same as the diameter of the key hole 14.
[0043] In one embodiment, the waterproof membrane 4 is made of a PET mold, and the thickness of the PET mold is 0.4-0.6 mm, preferably 0.5 mm.
[0044] In one embodiment, the dustproof layer 5 is made of EVA foam.
[0045] In one embodiment, the electronic component key module 9 is provided with a cover 10 at the bottom and an LED light 12 at the side. An extrusion buffer pad 11 is adhered to the cover 10 and is made of EVA foam.
[0046] In one embodiment, a fixing column 13 is provided in the housing 1 , and a positioning hole 15 for being fitted onto the fixing column 13 is provided on one side of the waterproof foam 3 , the waterproof membrane 4 , and the dustproof layer 5 .
[0047] In one embodiment, the housing 1 may be made of sheet metal; the button 2 may be T-shaped; waterproof foam 3 is attached to the inside of the housing 1, and the button 2 is inserted from the inside out, with a portion exposed outside the housing 1. The electronic component button module 9 is a common internal button of the circuit board 6. After the circuit board 6 is secured to the housing 1, pressing the button 2 activates the electronic component button module 9, thereby controlling the controlled device via signals from the circuit board 6.
[0048] In a specific embodiment, the double sealing layer adopts a double-layer structure of waterproof foam 3 and waterproof membrane 4. The waterproof foam 3 is a foam with strong water and oil absorption properties to provide side blocking; and the waterproof membrane 4 is a waterproof and corrosion-resistant PET or PC film that is waterproof and oil-proof. The waterproof foam 3 and the waterproof membrane 4 are tightly matched with the button 2 partition to ensure that liquid will not penetrate.
[0049] In a specific embodiment, the squeeze cushion 11 is also made of EVA foam, such as Figure 2 As shown, after the circuit board 6 is installed and fixed, the extrusion buffer pad 11 is pressed against the waterproof membrane 4, which can not only buffer the extrusion force and protect the button 2, but also make the button 2 have a better silent effect when pressed.
[0050] In a specific embodiment, the fixing column 13 is used to install and fix the waterproof foam 3, the waterproof membrane 4 and the dustproof layer 5. B is also a connecting column.
[0051] In a specific embodiment, the waterproof foam 3 is double-sided adhesive. The waterproof foam 3 is first pasted on the shell 1 (sheet metal), and then the button 2 is inserted into the through groove 7. The waterproof membrane 4 is pasted on the other side of the waterproof foam 3. The upper end of the waterproof membrane 4 uses a dustproof layer 5 (foam) of a certain thickness. Finally, the circuit board 6 is used to fit the electronic component button module 9 into the dustproof hole 8, and then the circuit board 6 is pressed down. The pressure generated squeezes this section of the dustproof layer 5 (foam) and the waterproof membrane 4 tightly, thereby pressing the button 2 and pressing the electronic component button module 9.
[0052] In a specific embodiment, the button 2 and the through slot 7 are in interference fit, which can achieve a better waterproof and oil-proof effect of the button.
[0053] In a specific embodiment, if Figure 3 As shown, the side of the button 2 has an inner groove 16, and the waterproof foam 3 has a protrusion 17 that inserts into the inner groove 16. The side of the button 2 can provide a better barrier against water and oil, and can also achieve a good quiet effect when the button 2 is pressed. This enhances the waterproof rating of the individual button panel, even to IP60, extending the product's service life and enhancing its stability. It prevents liquids such as water and oil from entering through the gaps in the individual buttons, causing oxidation of the circuit board lines and leading to product failure. It ensures that the control panel buttons can function properly even in harsh conditions and protects internal components from damage.
[0054] The present utility model, the undescribed parts are prior art.
[0055] The above are only preferred specific implementation methods of the present invention, but the protection scope of the present invention is not limited to them. Any technician familiar with the technical field can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention within the technical scope disclosed by the present invention, and they should be covered by the protection scope of the present invention.
Claims
1. A control panel button waterproof structure, characterized in that: include: A housing (1), wherein the housing (1) is provided with a button hole (14) for installing a button (2); A dustproof layer (5), the dustproof layer (5) is located on the housing (1) and is provided with dustproof holes (8); A circuit board (6), an electronic component key module (9) being mounted on the circuit board (6), the electronic component key module (9) being adapted to be inserted into the dustproof hole (8) and used to abut against the key (2); A double sealing layer is provided, wherein the double sealing layer is used for sealing between the housing (1) and the key (2), and for isolating between the key (2) and the electronic component key module (9) / dustproof layer (5).
2. A control panel button waterproof structure according to claim 1, characterized in that: The double sealing layer comprises a waterproof foam (3) and a waterproof membrane (4), wherein the waterproof foam (3) is located between the housing (1) and the key (2), and the waterproof membrane (4) is located between the key (2) and the electronic component key module (9) / dustproof layer (5).
3. A control panel button waterproof structure according to claim 2, characterized in that: The waterproof foam (3) is made of EVA and has adhesive backing on both sides. A through groove (7) for inserting the button (2) is provided on the waterproof foam (3), and the diameter of the through groove (7) is the same as the diameter of the button hole (14).
4. A control panel button waterproof structure according to claim 2, characterized in that: The waterproof membrane (4) adopts a PET mold, and the thickness of the PET mold is 0.4-0.6 mm.
5. The control panel button waterproof structure according to claim 3, characterized in that: The button (2) and the through slot (7) are in interference fit.
6. The control panel button waterproof structure according to claim 1, characterized in that: The dustproof layer (5) is made of EVA foam.
7. The control panel button waterproof structure according to claim 1, characterized in that: The bottom of the electronic component key module (9) is equipped with a cover (10) and the side is equipped with an LED light (12). An extrusion buffer pad (11) is pasted on the cover (10), and the extrusion buffer pad (11) is made of EVA foam.
8. The control panel button waterproof structure according to claim 2, characterized in that: The housing (1) has a fixing column (13) therein, and one side of the waterproof foam (3), the waterproof membrane (4) and the dustproof layer (5) is provided with a positioning hole (15) for being fitted onto the fixing column (13).
9. A control panel button waterproof structure according to any one of claims 2 to 4, characterized in that: The side surface of the button (2) has an inner groove (16), and the waterproof foam (3) has a protrusion (17) inserted into the inner groove (16).