Waterproof ultra-thin bathroom heater switch
By combining a base plate, a fixing cylinder, a mounting cover, a circuit board, a button, and a transparent silicone film, the problem of complex structure, large size, and troublesome assembly of existing waterproof switches is solved, achieving improved waterproof performance and an ultra-thin switch design.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHEJIANG LONGTAI ELECTRICAL TECH CO LTD
- Filing Date
- 2025-08-06
- Publication Date
- 2026-06-23
AI Technical Summary
Existing waterproof switches have complex structures, large sizes, and are difficult to assemble, resulting in weak waterproof performance and affecting product aesthetics and user experience.
It adopts a combination design of base plate, fixed cylinder, mounting cover, circuit board, button and transparent silicone film. The waterproof performance is improved by threaded connection and sealing ring, and the button achieves an ultra-thin style through transparent silicone film.
It achieves improved waterproof performance of the switch, has a simple structure and is easy to assemble, and can be made into an ultra-thin style while maintaining good waterproof performance and aesthetics.
Smart Images

Figure CN224400269U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of switches, and in particular to the technical field of waterproof ultra-thin bathroom heater switches. Background Technology
[0002] With the rapid development of technology and the popularization of smart devices, users have put forward higher requirements for the functions and performance of electronic products. In various applications, especially in environments such as bathrooms, outdoors, industry and medical, the demand for waterproof switches is increasing. Traditional waterproof switches are usually large in size and complex in design, which affects the overall aesthetics of the product.
[0003] Existing patent CN222785186U discloses an ultra-thin waterproof switch, including a base, a cover plate, a spring, and a button. The base has a mounting cavity, the spring is disposed in the mounting cavity, the cover plate is disposed on the upper end of the base, and the button includes a pressing part, a sealing gasket part, and a pressing part integrally formed from elastic material. The cover plate has an opening for the pressing part to pass through, the sealing gasket part presses against the cover plate and the base, and the pressing part extends into the mounting cavity and abuts against the spring. Although it has a waterproof function, its structure is relatively complex and assembly is relatively troublesome. At the same time, the waterproof performance at the pressing switch is relatively weak. Summary of the Invention
[0004] The purpose of this utility model is to solve the problems in the prior art by proposing a waterproof and ultra-thin bathroom heater switch, which can give the switch good waterproof performance, has a simple structure, can be made into an ultra-thin style, and is easy to assemble.
[0005] To achieve the above objectives, this utility model proposes a waterproof ultra-thin bathroom heater switch, comprising a base plate, a fixing cylinder, a mounting cover, a top plate, a circuit board, buttons, and a transparent silicone film. A fixing cylinder is fixed on the base plate, and a circuit board is provided inside the area enclosed by the fixing cylinder. Several buttons are provided on the upper end face of the circuit board. The outer wall of the fixing cylinder is provided with external threads, and the inner wall of the mounting cover is provided with internal threads that mate with the external threads. The mounting cover is screwed onto the fixing cylinder. An opening window is provided on the top wall of the mounting cover, and a transparent silicone film is provided on the opening window. The upper projection of all buttons falls on the transparent silicone film.
[0006] Preferably, the base plate and the fixing cylinder are an integral structure.
[0007] Preferably, the upper surface of the base plate is provided with a plurality of mounting bosses, which are located within the area enclosed by the fixing cylinder, and the circuit board is fixed to the mounting bosses by screws.
[0008] Preferably, the opening window is circular, and the opening window and the mounting cylinder are located on the same central axis.
[0009] Preferably, a sealing ring is placed on the upper end face of the fixed cylinder. The sealing ring is composed of a first rubber ring and a second rubber ring connected together. The first rubber ring is sandwiched between the upper end face of the fixed cylinder and the top wall of the mounting cover, and the outer side wall of the second rubber ring is in contact with the inner side wall of the fixed cylinder.
[0010] Preferably, the name is printed on the upper surface of the button.
[0011] The beneficial effects of this utility model are as follows: By screwing the mounting cover onto the fixing cylinder and using a sealing ring, this utility model can make the switch have excellent waterproof performance; the transparent silicone film allows the switch to have better waterproof performance without affecting the button pressing, and the simple structure makes it easier to make the switch into an ultra-thin style.
[0012] The features and advantages of this utility model will be described in detail through embodiments and accompanying drawings. Attached Figure Description
[0013] Figure 1 This is the front view of the waterproof ultra-thin bathroom heater switch of this utility model.
[0014] In the diagram: 1-base plate, 2-circuit board, 3-mounting cover, 4-sealing ring, 10-fixing cylinder, 11-mounting boss, 20-button, 30-opening window, 31-transparent silicone film, 41-first rubber ring, 42-second rubber ring. Detailed Implementation
[0015] Example 1:
[0016] See Figure 1 The present invention relates to a waterproof ultra-thin bathroom heater switch, comprising a base plate 1, a fixing cylinder 10, a mounting cover 3, a top plate, a circuit board 2, buttons 20, and a transparent silicone film 31. A fixing cylinder 10 is fixed on the base plate 1, and a circuit board 2 is provided inside the area enclosed by the fixing cylinder 10. Several buttons 20 are provided on the upper surface of the circuit board 2.
[0017] The outer wall of the fixed cylinder 10 is provided with an external thread, and the inner wall of the mounting cover 3 is provided with an internal thread that matches the external thread. The mounting cover 3 is screwed onto the fixed cylinder 10. The top wall of the mounting cover 3 is provided with an opening window 30, and a transparent silicone film 31 is provided on the opening window 30. The upper projection of all buttons 20 falls on the transparent silicone film 31. The transparent silicone film 31 is in contact with the buttons 20 or there is a gap of 0.1-0.5mm between the transparent silicone film 31 and the buttons 20.
[0018] The base plate 1 and the fixed cylinder 10 are an integral structure.
[0019] The opening window 30 is circular, and the opening window 30 and the mounting cylinder are located on the same central axis.
[0020] To prevent button 20 from being pressed by mistake, the name is printed on the upper surface of button 20.
[0021] Example 2:
[0022] In order to facilitate the fixing of the circuit board 2, a number of mounting bosses 11 are provided on the upper surface of the base plate 1. The mounting bosses 11 are located in the area surrounded by the fixing cylinder 10, and the circuit board 2 is fixed to the mounting bosses 11 by screws.
[0023] Example 3:
[0024] To further improve waterproof performance, a sealing ring 4 is placed on the upper end face of the fixing cylinder 10. The sealing ring 4 is composed of a first rubber ring 32 and a second rubber ring 42 connected together. The first rubber ring 32 is sandwiched between the upper end face of the fixing cylinder 10 and the top wall of the mounting cover 3, and the outer side wall of the second rubber ring 42 is in contact with the inner side wall of the fixing cylinder 10.
[0025] The working process of this utility model:
[0026] This utility model of a waterproof ultra-thin bathroom heater switch allows for control of the bathroom heater by pressing the desired button 20 through the transparent silicone film 31 during operation. Since the button 20 is located in a closed cavity, pressing the button 20 does not compromise the switch's waterproof performance, making its waterproofing more reliable. The switch has a simple structure and is easy to assemble, allowing for a convenient ultra-thin design.
[0027] The above embodiments are illustrative of the present invention and are not intended to limit the present invention. Any simple modifications to the present invention are within the protection scope of the present invention.
Claims
1. Waterproof ultra-thin bathroom heater switch, characterized in that: The device includes a base plate (1), a fixing cylinder (10), a mounting cover (3), a top plate, a circuit board (2), buttons (20), and a transparent silicone film (31). A fixing cylinder (10) is fixed on the base plate (1). A circuit board (2) is provided inside the area enclosed by the fixing cylinder (10). Several buttons (20) are provided on the upper end face of the circuit board (2). The outer wall of the fixing cylinder (10) is provided with an external thread. The inner wall of the mounting cover (3) is provided with an internal thread that matches the external thread. The mounting cover (3) is screwed onto the fixing cylinder (10). An opening window (30) is provided on the top wall of the mounting cover (3). A transparent silicone film (31) is provided on the opening window (30). The upper projection of all buttons (20) falls on the transparent silicone film (31).
2. The waterproof ultra-thin bathroom heater switch as described in claim 1, characterized in that: The base plate (1) and the fixing cylinder (10) are an integral structure.
3. The waterproof ultra-thin bathroom heater switch as described in claim 1, characterized in that: The base plate (1) has several mounting bosses (11) on its upper surface. The mounting bosses (11) are located within the area enclosed by the fixing cylinder (10). The circuit board (2) is fixed to the mounting bosses (11) by screws.
4. The waterproof ultra-thin bathroom heater switch as described in claim 1, characterized in that: The opening window (30) is circular, and the opening window (30) and the mounting cylinder are located on the same central axis.
5. The waterproof ultra-thin bathroom heater switch as described in claim 1, characterized in that: A sealing ring (4) is placed on the upper end face of the fixed cylinder (10). The sealing ring (4) is composed of a first rubber ring (32) and a second rubber ring (42) connected together. The first rubber ring (32) is sandwiched between the upper end face of the fixed cylinder (10) and the top wall of the mounting cover (3). The outer side wall of the second rubber ring (42) is in contact with the inner side wall of the fixed cylinder (10).
6. The waterproof ultra-thin bathroom heater switch as described in any one of claims 1-5, characterized in that: The name is printed on the upper surface of the button (20).