Temperature controller with dustproof structure
Patent Information
- Application Number
- CN202522519540.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-11-27
- Publication Date
- 2026-09-29
- Estimated Expiration
- 2035-11-27
Smart Images

Figure CN224817050U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of thermostat technology, specifically to a thermostat with a dustproof structure. Background Technology
[0002] A thermostat is a series of automatic control components that, based on changes in the ambient temperature, undergo physical deformation within the switch to produce certain special effects, resulting in either a conduction or a disconnection action. It is also called a temperature control switch, temperature protector, or temperature controller, or simply a thermostat. Alternatively, the temperature protector transmits the temperature to the temperature controller, which then issues a switching command to control the operation of the equipment to achieve the desired temperature and energy-saving effect.
[0003] Most household thermostats are currently installed directly on the wall. However, the thermostat panel is exposed to the external environment for a long time. To facilitate use, the thermostat panel is often equipped with a touch screen or a combination of physical buttons and display screen for user control. During long-term use, some dust and impurities will inevitably fall on the surface of the physical buttons and screen, affecting the use.
[0004] Therefore, it is necessary to provide a temperature controller with a dustproof structure to solve the above problems.
[0005] Practical content
[0006] The purpose of this utility model is to provide a technical solution to address the problems in the prior art mentioned in the background section.
[0007] To achieve the above objectives, the present invention adopts the following technical solution:
[0008] A thermostat with a dustproof structure includes a thermostat panel, and an upper protective cover and a lower protective cover that can move closer to or further away from each other. The upper and lower protective covers are vertically slidably connected and cover the thermostat panel. A synchronous drive component is connected between the upper and lower protective covers and the thermostat panel. The synchronous drive component is adapted to drive the upper and lower protective covers to move further away from or closer to each other.
[0009] The synchronous drive assembly includes a gear, an upper rack, and a lower rack. The gear is rotatably connected to the side wall of the thermostat panel. The non-rack end of the upper rack is fixedly connected to the upper protective cover, and the non-rack end of the lower rack is fixedly connected to the lower protective cover. The rack ends of both the upper and lower racks mesh with the gear.
[0010] Preferably, the gear is located in the middle of the side of the thermostat panel, the upper rack and the lower rack have the same rack end length, and the upper rack and the lower rack are symmetrical about the center of the gear.
[0011] Preferably, the inner walls of the upper and lower protective covers are provided with receiving grooves, the non-rack ends of the upper and lower racks are located inside the receiving grooves, and the gear is located inside the receiving grooves.
[0012] Preferably, a support assembly is connected between the thermostat panel and the lower protective cover to prevent the lower protective cover from sliding down due to gravity. The support assembly includes a baffle and a tension spring. The baffle is fixedly connected to the side wall of the thermostat panel and located inside the receiving groove on the lower protective cover. The two ends of the tension spring are fixedly connected between the baffle and the receiving groove and are in a vertical state.
[0013] Preferably, the upper protective cover is also connected to the thermostat panel via a support assembly.
[0014] Preferably, guide sliders are fixedly installed on the inner sidewalls of both the upper and lower protective covers, and guide grooves are provided on the sidewalls of the thermostat panel, with the guide sliders slidably connected inside the guide grooves.
[0015] Technical effects and advantages of this invention: Compared with the prior art, the temperature controller with a dustproof structure proposed in this invention has the following advantages:
[0016] This device allows the user to manually pull down the lower protective cover. At this time, the synchronous drive component simultaneously drives the upper and lower protective covers to move away from each other, exposing the thermostat panel for user operation. The tension spring is in an extended state at this time. When the user finishes operating, they release the lower protective cover, and the tension spring, under its own elastic force, drives the lower protective cover to reset. Then, the synchronous drive component drives the upper protective cover to reset synchronously, so that the lower and upper protective covers can be opened and closed at the same time. In the closed state, dust protection is provided. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of the main structure of this utility model;
[0018] Figure 2 This is a schematic diagram of the main structure of the panel of this practical thermostat;
[0019] Figure 3 This is a side view of the panel of this utility thermostat.
[0020] Figure 4 This is a schematic diagram of the main structure of the protective cover of this utility model.
[0021] In the diagram: 1. Temperature controller panel; 2. Upper protective cover; 3. Lower protective cover; 4. Guide slide; 5. Gear; 6. Baffle; 7. Upper rack; 8. Lower rack; 9. Tension spring; 10. Receiving groove; 11. Guide slider. Detailed Implementation
[0022] The present invention will be further described below with reference to the accompanying drawings:
[0023] like Figures 1 to 4 The thermostat shown includes a thermostat panel 1, and an upper protective cover 2 and a lower protective cover 3 that can move closer or further apart from each other. The upper protective cover 2 and the lower protective cover 3 are vertically slidably connected and cover the thermostat panel 1. A synchronous drive assembly is connected between the upper protective cover 2 and the lower protective cover 3 and the thermostat panel 1. The synchronous drive assembly is adapted to drive the upper protective cover 2 and the lower protective cover 3 to move further apart or closer to each other. The synchronous drive assembly includes a gear 5, an upper rack 7 and a lower rack 8. The gear 5 is rotatably connected to the side wall of the thermostat panel 1. The non-rack end of the upper rack 7 is fixedly connected to the upper protective cover 2, and the non-rack end of the lower rack 8 is fixedly connected to the lower protective cover 3. The rack ends of the upper rack 7 and the lower rack 8 are both meshed with the gear 5.
[0024] Please see Figure 1 and Figure 2 In the closed state, the upper protective cover 2 and lower protective cover 3 completely cover the operating interface of the thermostat panel 1, including important components such as the touch screen, physical buttons, and display screen, effectively preventing the intrusion of external dust and impurities. A synchronous drive assembly connects the upper and lower protective covers 2 and 3 to the thermostat panel 1. This assembly precisely drives the upper and lower protective covers 2 and 3 to move away from or towards each other, realizing the opening and closing of the protective covers. The upper and lower protective covers 2 and 3 are typically made of transparent or semi-transparent materials, providing physical protection when closed while allowing users to observe the basic information displayed on the thermostat panel 1. This design cleverly combines protective function with ease of use, solving the technical problem of dust accumulation caused by long-term exposure of traditional thermostat panels, while maintaining the product's aesthetics and ease of operation.
[0025] Gear 5 is located in the middle of the side of the thermostat panel 1. The rack ends of the upper rack 7 and the lower rack 8 are the same length, and the upper rack 7 and the lower rack 8 are symmetrical about the center of gear 5.
[0026] Please see Figure 3 When the user pulls down the protective cover 3, the lower protective cover 3 drives the gear 5 to rotate via the lower rack 8. As the gear 5 rotates, it drives the upper rack 7 to move in the opposite direction through rack engagement, thus achieving synchronous movement of the upper protective cover 2 and the lower protective cover 3, moving them away from or closer to each other. The gear 5 is located in the middle of the side of the thermostat panel 1. The rack ends of the upper rack 7 and the lower rack 8 are of the same length, and the upper rack 7 and the lower rack 8 are symmetrical about the center of the gear 5. This symmetrical design ensures that the movement speed and displacement of the two protective covers are completely consistent, avoiding jamming or misalignment caused by asynchrony. This gear and rack transmission method of the synchronous drive assembly has the advantages of high transmission accuracy, smooth movement, and good reliability.
[0027] The inner walls of the upper protective cover 2 and the lower protective cover 3 are provided with receiving grooves 10. The non-rack ends of the upper rack 7 and the lower rack 8 are located inside the receiving grooves 10, and the gear 5 is located inside the receiving grooves 10.
[0028] Please see Figure 1 and Figure 4 The non-rack ends of both the upper rack 7 and the lower rack 8 are located inside the receiving groove 10. This built-in design completely hides the non-meshing parts of the racks, protecting the transmission components from external environmental influences and maintaining a clean and aesthetically pleasing product appearance. Gear 5 is also located inside the receiving groove 10, protected by a protective cover to prevent dust accumulation from affecting transmission accuracy. The dimensions of the receiving groove 10 are carefully designed to provide sufficient space for the transmission components while avoiding excessive size that could compromise the structural strength of the protective cover. The inner wall of the receiving groove 10 is typically designed with reinforcing ribs to enhance local rigidity and strength. Furthermore, a dustproof sealing strip may be installed at the opening of the receiving groove 10 to further prevent dust from entering the transmission mechanism. This design, which integrates the transmission components within the receiving groove 10, not only improves the product's aesthetics but also significantly enhances the service life and reliability of the transmission system.
[0029] A support assembly is connected between the thermostat panel 1 and the lower protective cover 3 to prevent the lower protective cover 3 from sliding down due to gravity. The support assembly includes a baffle 6 and a tension spring 9. The baffle 6 is fixedly connected to the side wall of the thermostat panel 1 and located inside the receiving groove 10 on the lower protective cover 3. The two ends of the tension spring 9 are fixedly connected between the baffle 6 and the receiving groove 10 and are in a vertical state. The upper protective cover 2 is also connected to the thermostat panel 1 through the support assembly.
[0030] Please see Figure 3 When the lower protective cover 3 and the upper protective cover 2 are in the closed position, the tension spring 9 is in a natural or slightly stretched state. When the lower protective cover 3 moves downward to open, the tension spring 9 is stretched and stores elastic potential energy. When it needs to be closed, the lower protective cover 3 is released, and the tension spring 9 releases energy to assist the lower protective cover 3 to fall back smoothly. Similarly, the upper protective cover 2 is also connected to the thermostat panel 1 through a support assembly. However, the installation direction of the tension spring 9 in the support assembly of the upper protective cover 2 may be opposite to that of the lower protective cover 3 to balance the downward gravity of the upper protective cover 2. This design of the support assembly effectively overcomes the influence of the protective cover's own gravity, allowing the protective cover to stay stably in any open position, which is convenient for users to operate, while ensuring the smoothness and controllability of the movement process.
[0031] Guide sliders 11 are fixedly installed on the inner sidewalls of the upper protective cover 2 and the lower protective cover 3. A guide groove 4 is provided on the sidewall of the thermostat panel 1, and the guide slider 11 is slidably connected inside the guide groove 4.
[0032] Please see Figure 3 and Figure 4 The cross-sectional shape of the guide groove 4 is typically rectangular, trapezoidal, or T-shaped, matching the shape of the guide slider 11. This ensures smooth sliding while effectively preventing the protective cover from detaching. Multiple guide structures are usually provided, distributed along the width of the protective cover to ensure its stability during movement, preventing deflection or jamming. The guide groove 4 may be coated with grease or fitted with self-lubricating bushings to further reduce friction and wear. The precise fit between the guide slider 11 and the guide groove 4 not only ensures the smooth movement of the protective cover but also bears its weight and any external forces, ensuring the long-term reliable operation of the entire system.
[0033] It should be noted that the thermostat panel 1 contains a thermistor, a microprocessor, a relay, a power module, and a wireless communication module. The resistance value of the thermistor changes sensitively and regularly with temperature changes. It replaces the mechanical bimetallic strip. The microprocessor reads the resistance value of the thermistor and calculates the current temperature using a built-in algorithm. It compares the current temperature with the set temperature and then issues a command to control the opening and closing of the relay based on the comparison result. It can also manage the user interface (display, buttons), run the operating system, and manage Wi-Fi connections. When the microprocessor thinks that the device needs to be started, it sends a low-voltage signal to the relay, and the electromagnet inside the relay will be attracted, thereby connecting or disconnecting the high-voltage circuit of the HVAC equipment (air conditioner, heater). The power module is usually an AA or AAA battery, which provides backup or main power to the thermostat motherboard. The wireless communication module, such as a Wi-Fi or Zigbee chip, is used to connect to the home router to realize remote control by mobile app and linkage with other smart devices. Through the above structure, complete temperature control can be achieved inside the thermostat panel 1. However, the structure in this application is limited to the surface of the thermostat panel 1 and does not interfere with the internal structure.
[0034] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.
Claims
1. A thermostat with a dustproof structure, comprising a thermostat panel (1), characterized in that: It includes an upper protective cover (2) and a lower protective cover (3) that can move closer or further apart from each other. The upper protective cover (2) and the lower protective cover (3) are vertically slidably connected and cover the thermostat panel (1). A synchronous drive assembly is connected between the upper protective cover (2) and the lower protective cover (3) and the thermostat panel (1). The synchronous drive assembly is adapted to drive the upper protective cover (2) and the lower protective cover (3) to move further apart or closer together. The synchronous drive assembly includes a gear (5), an upper rack (7), and a lower rack (8). The gear (5) is rotatably connected to the side wall of the thermostat panel (1). The non-rack end of the upper rack (7) is fixedly connected to the upper protective cover (2), and the non-rack end of the lower rack (8) is fixedly connected to the lower protective cover (3). The rack ends of both the upper rack (7) and the lower rack (8) mesh with the gear (5).
2. A temperature controller with a dustproof structure according to claim 1, characterized in that: The gear (5) is located in the middle of the side of the thermostat panel (1). The upper rack (7) and the lower rack (8) have the same rack end length. The upper rack (7) and the lower rack (8) are symmetrical about the center of the gear (5).
3. A temperature controller with a dustproof structure according to claim 1, characterized in that: The inner walls of the upper protective cover (2) and the lower protective cover (3) are provided with receiving grooves (10), the non-rack ends of the upper rack (7) and the lower rack (8) are located inside the receiving grooves (10), and the gear (5) is located inside the receiving grooves (10).
4. A temperature controller with a dustproof structure according to claim 3, characterized in that: A support assembly is connected between the thermostat panel (1) and the lower protective cover (3) to prevent the lower protective cover (3) from sliding down due to gravity. The support assembly includes a baffle (6) and a tension spring (9). The baffle (6) is fixedly connected to the side wall of the thermostat panel (1) and located inside the receiving groove (10) on the lower protective cover (3). The two ends of the tension spring (9) are fixedly connected between the baffle (6) and the receiving groove (10) and are in a vertical state.
5. A temperature controller with a dustproof structure according to claim 4, characterized in that: The upper protective cover (2) and the thermostat panel (1) are also connected by a support assembly.
6. A temperature controller with a dustproof structure according to claim 1, characterized in that: Guide sliders (11) are fixedly installed on the inner sidewalls of the upper protective cover (2) and the lower protective cover (3). A guide groove (4) is provided on the sidewall of the thermostat panel (1). The guide slider (11) is slidably connected inside the guide groove (4).