Waterproof and dustproof range hood controller

Abstract

The utility model discloses a waterproof dust-proof range hood controller, which relates to the technical field of kitchen equipment and comprises a shell, a panel arranged at a port of the shell and a circuit board arranged in the shell, a switch button is mounted on the top surface of the circuit board, a button cap is arranged at the top end of the switch button, and the button cap is connected with the panel. The switch button is arranged on the circuit board, the button cap is arranged on the panel, the top end of the button cap penetrates through the panel, and an elastic sheath which is sleeved on the outer side of the switch button is arranged between the panel and the circuit board, the elastic sheath is arranged on the outer side of the switch button, and two ends of the elastic sheath respectively abut against the panel and the circuit board. According to the utility model, oil smoke, water vapor and dust permeation caused by the matching gap of the key cap is restrained in the elastic sheath, and the rebound sheet abuts against the bottom surface of the guide table, so that the rebound effect is provided for the key cap, and the problems that the oil smoke, water vapor and dust erode the circuit board and shorten the service life of the control switch are thoroughly solved.

Description

Technical Field

[0001] This utility model relates to the field of kitchen equipment technology, specifically to a waterproof and dustproof range hood controller. Background Technology

[0002] In the case of existing push-button control switches for range hoods, over long-term use, the gap between the switch button cap and the control housing can easily allow oil fumes, moisture, and dust to enter the control switch. This not only obstructs the movement space of the button cap, causing the switch to malfunction, but also causes the oil fumes, moisture, and dust entering the housing to corrode the circuit board, resulting in circuit board damage and significantly shortening the lifespan of the control switch. To address this, we propose a waterproof and dustproof range hood controller. Utility Model Content

[0003] The purpose of this utility model is to provide a waterproof and dustproof smoke hood controller in order to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model specifically adopts the following technical solution:

[0005] A waterproof and dustproof range hood controller includes a housing, a panel disposed at the port of the housing, and a circuit board disposed within the housing. A switch button is mounted on the top surface of the circuit board, and a button cap is provided at the top of the switch button. The top of the button cap penetrates the panel. An elastic sleeve is provided between the panel and the circuit board, covering the outside of the switch button. An annular guide platform is formed on the outer side of the bottom end of the button cap. An annular isolation cavity is formed inside the elastic sleeve. The top of the elastic sleeve outside the isolation cavity is folded inward to form an isolation sheet covering the guide platform. The inner hole of the isolation sheet mates with the outer wall of the button cap. A rebound piece is formed on the elastic sleeve inside the isolation cavity, and the top of the rebound piece abuts against the bottom surface of the guide platform.

[0006] Furthermore, the bottom surface of the panel has a positioning groove corresponding to the switch button, the top end of the elastic sleeve extends into the positioning groove, and the top surface of the isolation piece abuts against the top surface inside the positioning groove.

[0007] Furthermore, the inner hole of the isolation plate contacts the outer wall of the keycap.

[0008] Furthermore, the inner hole of the isolation plate does not contact the outer wall of the keycap.

[0009] Furthermore, a guide cylinder is provided inside the isolation cavity, and the guide cylinder surrounds the outside of the guide platform.

[0010] Furthermore, the bottom surface of the housing is provided with lower positioning platforms at the four corners, and the bottom surface of the panel is provided with upper positioning platforms corresponding to the lower positioning platforms at the four corners. The upper positioning platforms are connected to the lower positioning platforms by screws and clamp the circuit board.

[0011] The beneficial effects of this utility model are as follows:

[0012] 1. This utility model provides an elastic sleeve on the outside of the switch button. The two ends of the elastic sleeve abut against the panel and the circuit board respectively, confining the oil fumes, water vapor, and dust caused by the gaps in the button cap within the elastic sleeve. At the same time, the rebound piece abuts against the bottom surface of the guide platform, which not only provides a rebound effect for the button cap, preventing the button cap from blocking the return of the switch button due to the accumulation of oil fumes, water vapor, and dust, thus solving the problem of reduced service life of the switch button, but also completely blocks the penetration of oil fumes, water vapor, and dust within the isolation cavity, preventing them from penetrating into the position of the switch button. This completely solves the problem of oil fumes, water vapor, and dust corroding the circuit board and shortening the service life of the control switch.

[0013] 2. This utility model uses a positioning groove to position the elastic sleeve, further improving its stability. It provides two methods: contact between the isolation plate and the keycap, and non-contact. When the isolation plate contacts the outer wall of the keycap, it further promotes the rebound of the keycap and initially blocks the penetration of external oil fumes, moisture, and dust. When the isolation plate does not contact the keycap, it does not affect the blocking effect of the elastic sleeve against oil fumes, moisture, and dust. By placing the guide cylinder in the isolation cavity, the structure of the elastic sleeve is supported and shaped, and the isolation plate is placed against the panel, improving the stability of the elastic sleeve and preventing the keycap from shaking significantly, which would affect the user experience. Attached Figure Description

[0014] Figure 1 This is a three-dimensional schematic diagram of the present invention.

[0015] Figure 2 This is an exploded schematic diagram of this utility model.

[0016] Figure 3 This is a front sectional view of the present invention.

[0017] Figure 4 yes Figure 3 A magnified view of a portion of point A in the middle.

[0018] Figure 5 This is a front sectional view of the elastic sheath in this utility model.

[0019] Reference numerals: 1. Housing; 2. Lower positioning platform; 3. Panel; 4. Keyhole; 5. Positioning groove; 6. Digital display area; 7. Upper positioning platform; 8. Support rib; 9. Circuit board; 10. Switch button; 11. Digital display block; 12. Terminal block; 13. Button cap; 14. Guide platform; 15. Elastic sleeve; 16. Isolation cavity; 17. Isolation plate; 18. Rebound plate; 19. Guide cylinder. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings.

[0021] Please see Figure 1 - Figure 5This utility model provides a waterproof and dustproof range hood controller, including a housing 1, a panel 3 disposed at the port of the housing 1, and a circuit board 9 disposed inside the housing 1. A switch button 10 is attached to the top surface of the circuit board 9, and a button cap 13 is provided at the top of the switch button 10. The top of the button cap 13 penetrates through the panel 3. Specifically, a key hole 4 is provided on the end face of the panel 3. The key hole 4 slides with the top of the button cap 13, and the inner diameter of the key hole 4 is larger than the outer diameter of the top of the button cap 13. The feature is that an elastic sleeve 15 is provided between the panel 3 and the circuit board 9, which is fitted over the switch button 10. The elastic sleeve 15 is made of rubber. The minimum inner diameter of the elastic sleeve 15 is larger than the outer dimensions of the switch button 10 to prevent the elastic sleeve 15 from contacting the switch button 10. The bottom surface of the elastic sleeve 15 abuts against the top surface of the circuit board 9. An annular guide platform 14 is formed on the outer side of the bottom end of the button cap 13. An annular isolation cavity 16 is formed inside the elastic sleeve 15. The top of the elastic sleeve 15 outside the isolation cavity 16 is folded inward to form an isolation plate 17 covering the guide platform 14. Specifically, the top surface of the isolation plate 17 abuts against the bottom surface of the panel 3, and the inner hole of the isolation plate 17 is perpendicular to the button cap 13. Specifically, the inner hole of the isolation plate 17 forms a clearance fit with the outer wall of the button cap 13, or the inner hole diameter of the isolation plate 17 is larger than the outer wall diameter of the button cap 13, resulting in no contact. Regardless of whether it is a clearance fit or no contact, the inner hole diameter of the isolation plate 17 is smaller than the outer diameter of the guide platform 14. The elastic sleeve 15 inside the isolation cavity 16 forms a rebound piece 18, and the top of the rebound piece 18 abuts against the bottom surface of the guide platform 14. Thus, by setting the elastic sleeve 15 on the outside of the switch button 10, and having both ends of the elastic sleeve 15 abut against the panel 3 and the circuit board 9 respectively, the gap in the mating seam of the button cap 13 is closed. The resulting oil fumes, moisture, and dust penetration are confined within the elastic sleeve 15, while the rebound piece 18 abuts against the bottom surface of the guide platform 14. This not only provides a rebound effect for the button cap 13, preventing the button cap 13 from blocking the return of the switch button 10 due to the accumulation of oil fumes, moisture, and dust, thus solving the problem of reduced service life of the switch button 10, but also completely blocks the penetration of oil fumes, moisture, and dust within the isolation cavity 16, preventing oil fumes, moisture, and dust from penetrating into the position of the switch button 10. This completely solves the problem of oil fumes, moisture, and dust corroding the circuit board 9 and shortening the service life of the control switch.

[0022] In this embodiment, preferably, the inner hole of the isolation plate 17 is in contact with or not in contact with the outer wall of the keycap 13. Specifically, if the isolation plate 17 is in contact with the outer wall of the keycap 13, the isolation plate 17 further promotes the rebound of the keycap 13, and at the same time initially blocks the penetration of external oil fumes, water vapor, and dust. If the isolation plate 17 is not in contact with the keycap 13, it does not affect the blocking effect of the elastic sleeve 15 on the penetration of oil fumes, water vapor, and dust.

[0023] In this embodiment, preferably, the bottom surface of the panel 3 is formed with a positioning groove 5 corresponding to the switch button 10, and the top end of the elastic sleeve 15 extends into the positioning groove 5. Specifically, the outer wall of the elastic sleeve 15 is fitted with the inner wall of the positioning groove 5 with a gap, and the top surface of the isolation piece 17 abuts against the inner top surface of the positioning groove 5, so that the elastic sleeve 15 can be positioned by the positioning groove 5, thereby further improving the stability of the elastic sleeve 15.

[0024] In this embodiment, preferably, a guide cylinder 19 is provided inside the isolation cavity 16. The guide cylinder 19 surrounds the outside of the guide platform 14. The inner diameter of the guide cylinder 19 is larger than the outer diameter of the guide platform 14, and a gap is reserved between the inner wall of the guide cylinder 19 and the spring sheet 18. Thus, by placing the guide cylinder 19 inside the isolation cavity 16, the structure of the elastic sleeve 15 is supported and shaped, and the isolation sheet 17 is placed against the panel 3, which improves the stability of the elastic sleeve 15 and prevents the button cap 13 from shaking significantly, affecting the user experience.

[0025] In this embodiment, preferably, the four corners of the bottom surface of the housing 1 are provided with lower positioning platforms 2, and the four corners of the bottom surface of the panel 3 are provided with upper positioning platforms 7 corresponding to the lower positioning platforms 2. The upper positioning platforms 7 are connected to the lower positioning platforms 2 by screws and clamp the circuit board 9. Specifically, the top and bottom surfaces of the four corners of the circuit board 9 contact the lower positioning platforms 7 and the upper positioning platforms 2 respectively. During encapsulation, the lower positioning platforms 7 and the upper positioning platforms 2 are connected by screws to clamp and fix the four corners of the circuit board 9. At the same time, the connection between the upper positioning platforms 7 and the lower positioning platforms 2 closes the port of the housing 1 of the panel 3.

[0026] In this embodiment, preferably, the inner walls on both sides of the housing 1 are provided with support ribs 8. The top of the support ribs 8 abuts against the circuit board 9, which can strengthen the structural strength of the housing 1 and at the same time limit the circuit board 9 to provide stable support.

[0027] In this embodiment, preferably, a digital display block 11 is mounted on the top surface of the circuit board 9, and a digital display area 6 corresponding to the digital display block 11 is provided on the top surface of the panel 3. Specifically, the digital display area 6 is transparent or semi-transparent, so that digital display can be performed by the cooperation of the digital display block 11 and the digital display area 6.

[0028] In this embodiment, preferably, the bottom surface of the circuit board 9 is fitted with a terminal block 12, which penetrates the bottom surface of the housing 1 and can be inserted into the housing 1 through the wire harness for connection.

[0029] The working principle and usage process of this utility model are as follows: First, place the button cap 13 inside the elastic sleeve 15 of the built-in guide cylinder 19, and place the guide platform 14 between the isolation plate 17 and the spring plate 18. Then, insert the button cap 13 into the key hole 4, and install the elastic sleeve 15 of the built-in guide cylinder 19 into the positioning groove 5. Then, encapsulate and combine the housing 1, circuit board 9 and panel 3 with screws, so that it can be assembled with the range hood and connected to the wiring terminal 12 through the wire harness.

[0030] During use, the elastic sleeve 15 restricts the penetration of oil fumes, moisture, and dust caused by the gaps in the mating of the button cap 13. At the same time, the rebound piece 18 abuts against the bottom surface of the guide platform 14, which not only provides a rebound effect for the button cap 13, preventing the button cap 13 from blocking the return of the switch button 10 due to the accumulation of oil fumes, moisture, and dust, thus solving the problem of reduced service life of the switch button 10, but also completely blocks the penetration of oil fumes, moisture, and dust in the isolation cavity 16, preventing oil fumes, moisture, and dust from penetrating into the position of the switch button 10, thereby completely solving the problem of oil fumes, moisture, and dust corroding the circuit board 9 and shortening the service life of the control switch.

[0031] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A waterproof and dustproof range hood controller, comprising a housing (1), a panel (3) disposed at the port of the housing (1), and a circuit board (9) disposed within the housing (1), wherein a switch button (10) is attached to the top surface of the circuit board (9), and a button cap (13) is provided at the top of the switch button (10), the top of the button cap (13) penetrating the panel (3), characterized in that: An elastic sleeve (15) is provided between the panel (3) and the circuit board (9) and is fitted on the outside of the switch button (10). An annular guide platform (14) is formed on the outer side of the bottom end of the button cap (13). An annular isolation cavity (16) is formed inside the elastic sleeve (15). The top of the elastic sleeve (15) outside the isolation cavity (16) is folded inward to form an isolation piece (17) covering the guide platform (14). The inner hole of the isolation piece (17) is fitted with the outer wall of the button cap (13). A spring sheet (18) is formed on the elastic sleeve (15) inside the isolation cavity (16). The top of the spring sheet (18) abuts against the bottom surface of the guide platform (14).

2. The waterproof and dustproof range hood controller according to claim 1, characterized in that: The bottom surface of the panel (3) has a positioning groove (5) corresponding to the switch button (10), the top end of the elastic sleeve (15) extends into the positioning groove (5), and the top surface of the isolation piece (17) abuts against the top surface inside the positioning groove (5).

3. A waterproof and dustproof range hood controller according to claim 2, characterized in that: The inner hole of the isolation plate (17) contacts the outer wall of the key cap (13).

4. A waterproof and dustproof range hood controller according to claim 2, characterized in that: The inner hole of the isolation plate (17) does not contact the outer wall of the key cap (13).

5. A waterproof and dustproof smoke hood controller according to claim 3 or 4, characterized in that: The isolation cavity (16) is provided with a guide cylinder (19), which surrounds the outside of the guide platform (14).

6. A waterproof and dustproof range hood controller according to claim 1, characterized in that: The bottom surface of the housing (1) is provided with a lower positioning platform (2) at the four corners, and the bottom surface of the panel (3) is provided with an upper positioning platform (7) corresponding to the lower positioning platform (2) at the four corners. The upper positioning platform (7) is connected to the lower positioning platform (2) by screws and clamps the circuit board (9).

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