Arrangement structure of temperature sensor of temperature controller
By arranging the temperature sensor outside the product body of the temperature controller and through the isolation and ventilation hole design of the case, the problem of temperature sensor being affected by the temperature of electronic components is solved, improving the accuracy of temperature detection and the compactness of the product.
Patent Information
- Application Number
- CN202422168098.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-04
- Publication Date
- 2025-06-27
- Estimated Expiration
- 2034-09-04
AI Technical Summary
The temperature sensor in the temperature controller is susceptible to the temperature of other electronic components, resulting in a deviation in the detection temperature.
Arrange the temperature sensor outside the product body, increase the distance from the PCBA, and reduce the impact of the heating of electronic components on the temperature sensor through the isolation of the case, while designing ventilation holes on the case to enhance air convection.
It effectively reduces the thermal impact between the temperature sensor and PCBA electronic components, improves the accuracy of temperature detection, ensures the balance between internal and external temperatures, and reduces the complexity and cost of the production process.
Smart Images
Figure CN223040439U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to an arrangement structure of a temperature sensor of a temperature controller, belonging to the technical field of temperature controllers. Background Art
[0002] A temperature controller, namely a thermostat, is a device used to control temperature and is widely applied in various scenarios such as homes, offices, factories, etc. The function of the thermostat is to detect the ambient temperature and adjust the temperature according to the set temperature value to maintain the comfort of the indoor environment and achieve the purpose of energy conservation. At present, for the thermostat products on the market, most of their temperature sensors are arranged on the PCBA inside the product. They are arranged on the PCB together with electronic components and are very close to each other. When the product works, the electronic components on the PCBA will generate heat. The heat is conducted to the temperature sensor through ways such as air convection inside the product and heat conduction of the PCB, resulting in a large deviation between the temperature detected by the temperature sensor and the actual temperature of the external environment, causing certain troubles to the actual use of customers.
[0003] To solve the problem that the temperature sensor is affected by the temperature of electronic components, the improvement methods in the traditional way are as follows: 1. By adding slots on the PCB to reduce the heat conduction of the PCB; 2. By software numerical correction, in the software, the increased temperature value is subtracted. Although these methods can improve the detection accuracy of the temperature sensor, there are still many disadvantages, such as: the processing technology of the PCB is complex, the cost increases, and the defective rate increases. Summary of the Utility Model
[0004] The utility model provides an arrangement structure of a temperature sensor of a temperature controller to solve the technical problem that the temperature sensor inside the temperature controller is easily affected by the temperature of other electronic components.
[0005] The utility model solves the above technical problem through the following technical solutions:
[0006] The utility model provides an arrangement structure of a temperature sensor of a temperature controller, including:
[0007] A fixed bracket, inside which there is a power supply box. Inside the power supply box, a power supply PCBA is fitted and installed. Above the power supply PCBA, a power supply box protection cover is fitted and clamped inside the power supply box. The power supply PCBA is connected to the temperature sensor through an FPC, and the temperature sensor is located at the edge of the power supply box.
[0008] In this technical solution, the power supply box is fitted and clamped inside the fixed bracket. A plurality of ventilation holes are opened at the edge of the fixed bracket, and the ventilation holes are correspondingly distributed with the temperature sensor on the power supply box.
[0009] In this technical solution, a counterbore for installing the power supply PCBA is provided in the middle of the power supply box. On both sides of the power supply box located on the inner wall of the counterbore, there are convex blocks, and the power supply PCBA is fitted on the surface of the convex blocks.
[0010] In this technical solution, several uniformly distributed buckles are provided at the edge of the inner wall of the power supply box, and the buckles are located on both sides of the convex blocks.
[0011] In this technical solution, a clamping block corresponding to the buckle is provided at the edge of the power supply protection cover, and the clamping block is fitted and clamped inside the buckle.
[0012] In this technical solution, a cut groove is provided on the top surface of the power supply protection cover, and a through hole for FPC connection is provided in the middle of the power supply protection cover.
[0013] In this technical solution, the temperature sensor is welded to the surface of the power supply box by SMT. A groove is provided on the surface of the power supply box, and the groove is correspondingly arranged on one side of the temperature sensor.
[0014] In this technical solution, an FPC pressing block is fitted and connected inside the groove, and the FPC pressing block is bonded to the power supply box through back glue.
[0015] In this technical solution, several positioning posts are provided at the top edge of the power supply box. The several positioning posts are fitted and inserted into the fixed bracket. One of the positioning posts is located inside the groove, and the positioning posts respectively penetrate and are inserted into the FPC and the FPC pressing block.
[0016] In this technical solution, the gold fingers at the end of the FPC are fitted and inserted into the connector of the power supply PCBA. One end of the FPC is located inside the groove, and the other end of the FPC is located on the surface of the cut groove.
[0017] On the basis of conforming to the common knowledge in the art, the above preferred conditions can be combined arbitrarily to obtain various preferred examples of the present utility model.
[0018] The positive and progressive effects of the present utility model are as follows:
[0019] The layout structure of the temperature sensor of the temperature controller proposed above arranges the temperature sensor outside the product body, increases the distance from the PCBA, and reduces the influence of the heat generated by the PCBA electronic components on it through the isolation of the casing. At the same time, ventilation holes are designed on the casing to strengthen the convection of the air inside the product and the external air, enabling the temperature sensor to detect the external environmental temperature more accurately, ensuring the temperature balance inside and outside the thermostat to reduce the deviation, which is beneficial to improving the temperature detection accuracy of the product, and can achieve the precise assembly of each component, improving the compactness and convenience of the thermostat structure. The design of each component is novel and the layout is reasonable. While being convenient for rapid assembly, it reduces the manufacturing process difficulty, effectively enhances the competitiveness of the product, and is also convenient for rapid disassembly during maintenance, improving the performance of the thermostat. Brief Description of the Drawings
[0020] Figure 1 This is a schematic diagram of the overall three-dimensional structure of the present utility model.
[0021] Figure 2 This is a schematic diagram of the top view structure at the power supply box of the present utility model.
[0022] Figure 3 This is a schematic diagram of the top view structure at the protective cover of the power supply box of the present utility model.
[0023] Description of the Reference Numerals
[0024] 10. Fixed bracket; 11. Ventilation hole;
[0025] 20. Protective cover of the power supply box; 21. Through hole; 22. Cutting groove; 23. Clamping block;
[0026] 30. FPC pressing block;
[0027] 40. Temperature sensor;
[0028] 50. FPC;
[0029] 60. Power supply box; 61. Convex block; 62. Buckle; 63. Positioning post; 64. Groove;
[0030] 70. Power supply PCBA. Detailed Description of the Preferred Embodiment
[0031] The present utility model will be further described below by way of examples, but the present utility model is not limited to the scope of the examples described herein.
[0032] As Figures 1-3 shown, the layout structure of the temperature sensor of the temperature controller includes:
[0033] Fixed bracket 10, a power supply box 60 is provided inside the fixed bracket 10, a power supply PCBA 70 is fitted and installed inside the power supply box 60, a power supply box protective cover 20 is fitted and clamped inside the power supply box 60 above the power supply PCBA 70, the power supply PCBA 70 is connected to a temperature sensor 40 through an FPC 50, and the temperature sensor 40 is located at the edge of the power supply box 60.
[0034] In this technical solution, the power supply box 60 is fitted and clamped inside the fixed bracket 10, several ventilation holes 11 are opened at the edge of the fixed bracket 10, and the ventilation holes 11 are correspondingly distributed with the temperature sensor 40 on the power supply box 60. After the fixed bracket 10 is assembled, the ventilation holes 11 are made to correspond to the temperature sensor 40, and the other ventilation holes 11 can realize the air convection between the outside and the inside, reducing the temperature difference to improve the temperature detection accuracy.
[0035] In this technical solution, a counterbore for installing the power supply PCBA 70 is opened in the middle of the power supply box 60. On both sides of the power supply box 60 located on the inner wall of the counterbore, there are convex blocks 61, and the power supply PCBA 70 is fitted on the surface of the convex blocks 61. The power supply PCBA 70 is installed inside the counterbore of the battery box, and the accurate correspondence with the power supply PCBA 70 is realized by using the convex blocks 61, improving the assembly accuracy.
[0036] In this technical solution, several uniformly distributed buckles 62 are provided at the edge of the inner wall of the power supply box 60. The buckles 62 are located on both sides of the convex blocks 61. At the edge of the power supply protective cover, there are clamping blocks 23 correspondingly distributed with the buckles 62. The clamping blocks 23 are fitted and clamped inside the buckles 62. Through the cooperation of the buckles 62 and the clamping blocks 23, the installation of the power supply box protective cover 20 can be realized. After the FPC 50 is connected, the power supply box protective cover 20 is installed inside the counterbore, and the clamping blocks 23 are clamped inside the buckles 62 to realize locking, and at the same time, the power supply PCBA 70 is pressed and limited.
[0037] In this technical solution, a cut groove 22 is opened on the top surface of the power supply protective cover, and a through hole 21 for connecting the FPC 50 is opened in the middle of the power supply protective cover. The cut groove 22 can improve the heat transfer efficiency of the electronic components on the power supply PCBA 70, and the air convection is realized through the ventilation holes 11, which can effectively reduce the internal and external temperature difference.
[0038] In this technical solution, the temperature sensor 40 is soldered on the surface of the power supply box 60 by SMT. A groove 64 is opened on the surface of the power supply box 60, and the groove 64 is correspondingly arranged on one side of the temperature sensor 40. The temperature sensor 40 is arranged at the edge of the power supply box 60, which can reduce the influence between the temperature sensor 40 and the electronic components on the power supply PCBA 70, and the SMT soldering technology can ensure the stability of the temperature sensor 40.
[0039] In this technical solution, an FPC pressing block 30 is fitted and connected inside the groove 64. The FPC pressing block 30 is bonded to the power supply box 60 through back glue. The groove 64 is used for the installation of the FPC pressing block 30, and the FPC 50 is pressed and fixed by pasting with back glue.
[0040] In this technical solution, a plurality of positioning posts 63 are provided at the top edge of the power supply box 60. The plurality of positioning posts 63 are fitted and inserted into the fixing bracket 10. One of the positioning posts 63 is located inside the groove 64, and the positioning posts 63 are respectively inserted through the FPC 50 and the FPC pressing block 30. The positioning posts 63 are used for accurate assembly with the fixing bracket 10, and at the same time, the FPC 50 and the FPC pressing block 30 can be limited.
[0041] In this technical solution, the gold fingers at the end of the FPC 50 are fitted and inserted into the connector of the power supply PCBA 70. One end of the FPC 50 is located inside the groove 64, and the other end of the FPC 50 is located on the surface of the cut groove 22. Before installing the power supply box protection cover 20, insert the FPC 50 into the connector of the power supply PCBA 70, and make the FPC 50 pass through the through hole 21 before installing the power supply box protection cover 20. Bend the FPC 50 and place it on the surface of the cut groove 22 and then place it inside the groove 64. At this time, the positioning holes on the FPC 50 correspond to the positioning posts 63. After fitting the FPC pressing block 30 inside the groove 64 to press and fix the FPC 50, finally install the fixing bracket 10.
[0042] The present utility model is not limited to the above embodiments. No matter what changes are made in its shape or structure, they all fall within the protection scope of the present utility model. The protection scope of the present utility model is defined by the appended claims. Those skilled in the art can make various changes or modifications to these embodiments without departing from the principle and essence of the present utility model, but these changes and modifications all fall within the protection scope of the present utility model.
Claims
1. An arrangement structure of a temperature sensor of a temperature controller, characterized in that: include: A fixing bracket (10), wherein a power supply box (60) is arranged inside the fixing bracket (10), a power supply PCBA (70) is embedded and installed inside the power supply box (60), a power supply box protection cover (20) is embedded and snap-connected inside the power supply box (60) located above the power supply PCBA (70), the power supply PCBA (70) is connected to a temperature sensor (40) via an FPC (50), and the temperature sensor (40) is located at the edge of the power supply box (60).
2. The arrangement structure of the temperature sensor of the temperature controller according to claim 1, characterized in that: The power box (60) is engaged and snap-fitted with the interior of the fixing bracket (10); a plurality of ventilation holes (11) are provided on the edge of the fixing bracket (10); and the ventilation holes (11) are distributed correspondingly to the temperature sensors (40) on the power box (60).
3. The arrangement structure of the temperature sensor of the temperature controller according to claim 1, characterized in that: A recessed groove for installing a power PCBA (70) is provided in the middle of the power box (60), and bumps (61) are provided on both sides of the power box (60) on the inner wall of the recessed groove, and the power PCBA (70) is embedded in the surface of the bumps (61).
4. The arrangement structure of the temperature sensor of the temperature controller according to claim 3, characterized in that: The inner wall edge of the power box (60) is provided with a plurality of evenly distributed buckles (62), and the buckles (62) are located on both sides of the protrusion (61).
5. The arrangement structure of the temperature sensor of the temperature controller according to claim 1, characterized in that: The edge of the power protection cover is provided with a clamping block (23) distributed corresponding to the clamping buckle (62), and the clamping block (23) is engaged and clamped inside the clamping buckle (62).
6. The arrangement structure of the temperature sensor of the temperature controller according to claim 5, characterized in that: A slot (22) is provided on the top surface of the power protection cover, and a through hole (21) for connecting an FPC (50) is provided in the middle of the power protection cover.
7. The arrangement structure of the temperature sensor of the temperature controller according to claim 1, characterized in that: The temperature sensor (40) is welded on the surface of the power box (60) by SMT, and a groove (64) is provided on the surface of the power box (60), and the groove (64) is correspondingly arranged on one side of the temperature sensor (40).
8. The arrangement structure of the temperature sensor of the temperature controller according to claim 7, characterized in that: An FPC pressing block (30) is embedded and connected inside the groove (64), and the FPC pressing block (30) is bonded to the power box (60) via adhesive.
9. The arrangement structure of the temperature sensor of the temperature controller according to claim 1, characterized in that: A plurality of positioning posts (63) are provided on the top edge of the power box (60), and a plurality of the positioning posts (63) are inserted and engaged with the fixing bracket (10), wherein one of the positioning posts (63) is located inside the groove (64), and the positioning posts (63) are inserted and engaged with the FPC (50) and the FPC pressing block (30) respectively.
10. The arrangement structure of the temperature sensor of the temperature controller according to claim 1, characterized in that: The gold finger at the end of the FPC (50) is engaged with the connector of the power PCBA (70), one end of the FPC (50) is located inside the groove (64), and the other end of the FPC (50) is located on the surface of the cut groove (22).