Waterproof structure of controller key

Abstract

The utility model relates to the technical field of waterproof of keys, in particular to a waterproof structure of a controller key, which comprises an upper shell, an annular key, a switch key, a sealing element and a PCBA (printed circuit board assembly), the upper shell is provided with a first key slot, the annular key is arranged in the first key slot, the annular key is provided with a second key slot, the switch key is arranged in the second key slot, and the sealing element is arranged in the second key slot. The sealing element is sleeved on the annular key, the PCBA board is fastened with the upper shell, the sealing element is respectively pressed between the PCBA board and the first key slot after the PCBA board and the upper shell are fastened, the sealing isolation between the PCBA board and the annular key is realized, and the sealing element is provided with a liquid retaining slot extending towards the PCBA board. According to the utility model, as the PCBA board and the upper shell are in a screw locking state, the sealing element made of the silica gel material is in close fit with the (annular and switch) key and the PCBA board, and the sealing element has an elastic connection function, if liquid enters, the liquid only exists outside the surface of the silica gel waterproof element and the shell and cannot be in contact with the PCBA board.

Description

Technical Field

[0001] The utility model relates to the technical field of waterproof keys, in particular to a waterproof structure for keys of a controller. 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). This rating consists of two numbers, the first indicating the degree of dustproofing and the second indicating the degree of watertightness. The higher the number, the higher the degree of protection. For example, an IP67-rated device means it is completely dustproof (dustproof rating 6) and can withstand being submerged in 1 meter of water for 30 minutes without being damaged (waterproof rating 7).

[0003] 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, heating and cooling blankets may require a high water resistance rating, while other industrial equipment may require a high dust resistance rating. These ratings ensure that the equipment will function properly in harsh conditions and protect internal components from damage.

[0004] However, the waterproofing of buttons on controllers / panels currently on the market has the following problems: the waterproofing effect is poor and the IP rating is low; water, oil and other liquids can enter the interior through the gaps between individual buttons, causing oxidation of the circuit board lines and leading to product failure. Utility Model Content

[0005] The purpose of the present invention is to provide a controller button waterproof structure to solve the problems raised in the above background technology.

[0006] To achieve the above objectives, the present invention provides the following technical solutions:

[0007] A controller button waterproof structure, comprising:

[0008] Buttons, including a ring button and a switch button;

[0009] an upper shell, wherein the upper shell has a first keyway;

[0010] The annular button is installed in the first key slot, the annular button has a second key slot, and the switch button is installed in the second key slot;

[0011] A sealing member, the sealing member being sleeved on the annular button;

[0012] A PCBA board, wherein the PCBA board is fastened to the upper shell, and after fastening, a sealing member is pressed between the PCBA board and the first key slot to achieve sealing and isolation between the PCBA board and the annular key and the switch key;

[0013] The sealing member has a liquid retention groove on one side of the key and extends toward the PCBA board.

[0014] Furthermore, the first keyway and the sealing member are matched with each other through a sealing structure, and the sealing structure includes a first ring edge below the first keyway and a ring groove formed on the upper convex edge of the sealing member for matching and inserting the first ring edge.

[0015] Furthermore, the liquid retention groove includes a bottom area surrounded by the upper convex edge and the bottom of the sealing member, and a sinking area located in the middle of the bottom area.

[0016] Furthermore, the sunken area has an upwardly protruding support portion, and the bottom of the switch button abuts against the support portion.

[0017] Furthermore, the sealing member and the first keyway are mounted and fitted via a first clamping structure.

[0018] Furthermore, the first clamping structure includes a first clamping block located on the inner wall of the first key groove and a first clamping groove located on the inner wall of the ring groove, and the first clamping block is adapted to be plugged into the first clamping groove.

[0019] Furthermore, the switch button and the ring button are mounted and matched via a second clamping structure.

[0020] Furthermore, the second clamping structure includes a second clamping block located on the inner wall of the second key slot and a second clamping slot located on the outer edge of the switch button, and the second clamping block is adapted to be plugged into the second clamping slot.

[0021] Furthermore, it also includes a bottom shell, and the bottom shell is sealed and fixed to the upper shell.

[0022] Furthermore, a side of the PCBA board close to the seal is equipped with a board switch for cooperating with the switch button for extrusion.

[0023] Compared with the prior art, the beneficial effects of the present invention are:

[0024] In the present invention, since the PCBA board and the upper shell are in a screw-locked state, the sealing component (waterproof silicone component) is tightly matched with the ring button, the switch button and the PCBA board, and the waterproof silicone component has an elastic connection function, the sealing effect of the first ring edge and the ring groove is better. Therefore, if liquid enters, since the sealing component has a liquid retention groove and the PCBA board is separated from the ring button and the switch button on the other side of the sealing component, the liquid will only exist outside the surface of the silicone waterproof component and the shell, and be collected in the liquid retention groove and cannot come into contact with the PCBA board, so that the components on the PCBA board have a better moisture-proof effect.

[0025] The liquid retention groove extends toward the PCBA board, providing ample space for liquid accumulation. Even if a small amount of liquid enters the liquid retention groove, the seal still has good liquid accumulation capacity and waterproof effect, thereby greatly improving the sealing effect, indirectly increasing the service life of the controller / panel buttons and enhancing the stability of the controller / board panel buttons. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 This is a schematic structural diagram of the utility model.

[0027] Figure 2 For this utility model Figure 1 Cross-section view at AA in the middle.

[0028] Figure 3 For this utility model Figure 1 Bottom view with the bottom cover removed.

[0029] Figure 4 This is a schematic diagram of the structure decomposition of the utility model.

[0030] Figure 5 For this utility model Figure 4 Bottom view of .

[0031] Figure 6 This is a schematic diagram of the sealing structure of the utility model.

[0032] Figure 7 This is a bottom view of the sealing structure of the utility model.

[0033] In the figure: 1-upper shell, 2-bottom shell, 3-PCBA board, 4-ring button, 5-switch button, 6-seal, 7-upper convex edge, 8-ring groove, 9-first ring edge, 10-first key slot, 11-liquid retention groove, 12-bottom area, 13-sinking area, 14-support part, 15-board switch, 16-first card slot, 17-first card block, 18-second card slot, 19-second card block, 20-second inner edge, 21-second key slot. DETAILED DESCRIPTION

[0034] 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 part of the embodiments of the present invention, not all of the embodiments. 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.

[0035] In the description of the present invention, it should be noted that the terms "upper end", "lower end", "inner", "outer", "front end", "rear end", "two ends", "one end", "the other end", etc., indicating the orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are only for the convenience of describing the present invention and simplifying the description. They do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore should not be understood as limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance.

[0036] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "provided with," "sleeved," "socketed," "connected," etc., should be understood in a broad sense. For example, "connected" may refer to a fixed connection, a detachable connection, or an integral connection; it may refer to a mechanical connection or an electrical connection; it may refer to a direct connection or an indirect connection through an intermediate medium; it may refer to internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on the specific circumstances.

[0037] See also Figures 1 to 7 , the utility model provides a technical solution:

[0038] A controller button waterproof structure, comprising:

[0039] The button includes an upper shell 1 and an annular button 4. The upper shell 1 has a first key groove 10. The annular button 4 is installed in the first key groove 10. The annular button 4 has a second key groove 21.

[0040] A switch button 5, the switch button 5 is installed in the second key slot 21;

[0041] A sealing member 6, wherein the sealing member 6 is sleeved on the annular button 4;

[0042] The PCBA board 3 is fastened to the upper shell 1. After fastening, the seal 6 is pressed between the PCBA board 3 and the first key slot 10 to achieve sealing and isolation between the PCBA board 3 and the ring button 4 and the switch button 5.

[0043] The sealing member 6 has a liquid retention groove 11 on one side of the key and extends toward the PCBA board 3 .

[0044] Specifically, the first keyway 10 and the seal 6 are engaged via a sealing structure comprising a first annular edge 9 below the first keyway 10 and an annular groove 8 defined in the upper flange 7 of the seal 6 for mating insertion of the first annular edge 9. The liquid retention groove 11 comprises a bottom region 12 defined by the upper flange 7 and the bottom of the seal 6, and a sunken region 13 located in the middle of the bottom region 12.

[0045] like Figure 2 、 Figure 4 and Figure 6 As shown, when the seal 6 is assembled with the first keyway 10, the first ring edge 9 can be adaptively inserted into the ring groove 8. When the PCBA board 3 is fastened to the upper shell 1, the seal 6 is pressed by the PCBA board 3, so that the first ring edge 9 can fit tightly with the ring groove 8 to achieve sealing.

[0046] Specifically, the sunken area 13 has an upwardly protruding support portion 14, and the bottom of the switch button 5 abuts against the support portion 14. The side of the PCBA board 3 close to the seal 6 is equipped with a board switch 15 for cooperating with the switch button 5 for compression.

[0047] After the switch button 5 and the ring button 4 are assembled on the upper housing 1, the PCBA board 3 is fastened to the upper housing 1, thereby compressing the seal 6. The seal 6 provides a seal between the PCBA board 3 and the switch button 5 and the ring button 4. After the switch button 5 and the ring button 4 are assembled, the support portion 14 props up the switch button 5, so that when not pressed, there is a pressing distance between the support portion 14 and the switch button 5.

[0048] That is, the height of the support portion 14 is greater than the height of the upper flange 7, so that the top of the support portion 14 protrudes outside the upper flange 7, so that when not pressed, the first inner edge b in the top of the first key groove 10 contacts the edge a of the switch button 5, and the support portion 14 and the switch button 5 have a pressing distance.

[0049] Specifically, the seal 6 and the first keyway 10 are mounted and matched via a first clamping structure. The first clamping structure includes a first clamping block 17 located on the inner wall of the first keyway 10 and a first clamping groove 16 located on the inner wall of the annular groove 8. The first clamping block 17 is adapted to be plugged into the first clamping groove 16.

[0050] like Figure 2As shown, the first inner edge b at the top of the first key groove 10 of the ring button 4 engages with the edge a of the switch button 5, thereby preventing the ring button 4 from falling out of the first key groove 10 of the upper shell 1. In other words, the first key groove 10 is in a "T" shape, and the ring button 4 is in an inverted "T" shape.

[0051] Specifically, the switch button 5 and the ring button 4 are mounted and matched via a second clamping structure. The second clamping structure includes a second clamping block 19 located on the inner wall of the second key slot 21 and a second clamping slot 18 located on the outer edge of the switch button 5. Figure 4 and 5 As shown, the second clamping block 19 is adapted to be plugged into the second clamping slot 18. This prevents the switch button 5 from falling off the second key slot 21 of the ring button 4. In other words, the second key slot 21 is in a "T" shape, and the switch button 5 is in an inverted "T" shape.

[0052] Specifically, it also includes a bottom shell 2 . After the PCBA board 3 is fastened to the upper shell 1 , the bottom shell 2 and the upper shell 1 are also sealed and fixed.

[0053] Specifically, the sealing member 6 is preferably made of silicone and has a disc shape.

[0054] The assembly method of the present invention is as follows: first, install the ring button 4 into the first key slot 10 of the upper shell 1, then insert the switch button 5 into the second key slot 21 of the ring button. Then, insert the seal 6 so that the first ring edge 9 is plugged into the ring slot 8. Next, place the PCBA board 3 onto the seal 6 in the upper shell 1, screw the PCBA board 33 into the upper shell 1, and finally screw the bottom shell 2 to the upper shell 1. A sealing strip can also be used between the bottom shell 2 and the upper shell 1 to achieve a seal after the two are locked.

[0055] In the present invention, since the PCBA board 3 and the upper shell 1 are in a screw-locked state, the seal 6 (waterproof silicone member) is tightly fitted with the ring button 4, the switch button 5, and the PCBA board 3, and the waterproof silicone member also has an elastic connection function, the sealing effect at the first ring edge 9 and the ring groove 8 is better. Therefore, if liquid enters, since the seal 6 has a liquid retention groove 11 and separates the PCBA board 3 and the board switch 15 on the other side of the seal 6 from the ring button 4 and the switch button 5, the liquid will only exist outside the surface of the silicone waterproof member and the shell 1, and be collected in the liquid retention groove 11, and cannot come into contact with the PCBA board 3, so that the components on the PCBA board 3 have a better moisture-proof effect.

[0056] The liquid retention groove 11 extends toward the PCBA board 3, so there is a good space for liquid accumulation. Even if a little liquid enters the liquid retention groove 11, the seal 6 has a good liquid accumulation capacity and waterproof effect, thereby greatly improving the sealing effect, indirectly increasing the service life of the controller / panel keys, and enhancing the stability of the controller / board panel keys.

[0057] The present utility model, the undescribed parts are prior art.

[0058] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A controller button waterproof structure, characterized in that: include: Buttons, the buttons comprising a ring button (4) and a switch button (5); An upper shell (1), wherein the upper shell (1) has a first keyway (10); The annular button (4) is installed in the first key groove (10), the annular button (4) has a second key groove (21), and the switch button (5) is installed in the second key groove (21); A sealing member (6), wherein the sealing member (6) is sleeved on the annular button (4); A PCBA board (3), wherein the PCBA board (3) is fastened to the upper shell (1), and after fastening, a sealing member (6) is pressed between the PCBA board (3) and the first key slot (10), respectively, to achieve sealing and isolation between the PCBA board (3) and the annular key (4) and the switch key (5); The sealing member (6) has a liquid retention groove (11) extending toward the PCBA board (3) on one side of the key.

2. A controller button waterproof structure according to claim 1, characterized in that: The first keyway (10) and the sealing member (6) are matched with each other through a sealing structure, wherein the sealing structure comprises a first ring edge (9) below the first keyway (10) and a ring groove (8) provided on the upper convex edge (7) of the sealing member (6) for matching and inserting the first ring edge (9).

3. A controller button waterproof structure according to claim 2, characterized in that: The liquid retention groove (11) comprises a bottom area (12) enclosed by the upper convex edge (7) and the bottom of the sealing member (6), and a sinking area (13) located in the middle of the bottom area (12).

4. A controller button waterproof structure according to claim 3, characterized in that: The sinking area (13) has an upwardly protruding support portion (14), and the bottom of the switch button (5) abuts against the support portion (14).

5. A controller button waterproof structure according to claim 2, characterized in that: The sealing member (6) and the first keyway (10) are assembled and matched via a first clamping structure.

6. A controller button waterproof structure according to claim 5, characterized in that: The first clamping structure comprises a first clamping block (17) located on the inner wall of the first keyway (10) and a first clamping groove (16) located on the inner wall of the annular groove (8), and the first clamping block (17) is adapted to be plugged into the first clamping groove (16).

7. The controller button waterproof structure according to claim 1, characterized in that: The switch button (5) and the ring button (4) are assembled and matched via a second clamping structure.

8. A controller button waterproof structure according to claim 7, characterized in that: The second clamping structure comprises a second clamping block (19) located on the inner wall of the second key slot (21) and a second clamping slot (18) located on the outer edge of the switch button (5), and the second clamping block (19) is adapted to be plugged into the second clamping slot (18).

9. The controller button waterproof structure according to claim 1, characterized in that: It also includes a bottom shell (2), and the bottom shell (2) is sealed and fixed to the upper shell (1).

10. The controller button waterproof structure according to claim 1, characterized in that: The side of the PCBA board (3) close to the sealing member (6) is equipped with a board switch (15) for cooperating with the switch button (5) for extrusion.

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