Wall-mounted temperature controller with temperature compensation resistor

Abstract

The utility model relates to the technical field of wall-mounted temperature controllers, in particular to a wall-mounted temperature controller with a temperature compensation resistor, which is applied to temperature control of a heating device and comprises a temperature controller main body, the temperature compensation resistor, a mechanical switch and a temperature switch are arranged on the temperature controller main body, and the temperature switch comprises a push rod, a movable contact piece, a static contact piece and a temperature sensing piece. When contacts of the movable contact piece and the static contact piece are contacted, the heating circuit is conducted, two ends of the push rod are respectively connected with the temperature sensing piece and the movable contact piece, and when heating reaches a set temperature, the temperature sensing piece kicks to drive the push rod to push the movable contact piece to be separated from the static contact piece, and the heating circuit is disconnected. The temperature compensation resistor is electrically connected to the static contact piece, is arranged corresponding to the temperature sensing piece and is used for compensating the temperature of the temperature sensing piece; the mechanical switch is used for manually controlling the heating circuit to be connected or disconnected. By adding the temperature compensation resistor, the temperature compensation resistor can generate heat and compensate the temperature to the temperature sensing sheet after the circuit is conducted, so that the time for conducting the environment temperature to the temperature sensing sheet is shortened.

Description

Technical Field

[0001] This utility model relates to the technical field of wall-mounted thermostats, and specifically to a wall-mounted thermostat with a temperature compensation resistor. Background Technology

[0002] A wall-mounted thermostat is a temperature control device that can be fixed to a wall and is typically used in conjunction with heating systems to control indoor temperature. Wall-mounted thermostats usually have a digital display and buttons, allowing users to adjust temperature settings and set timers. Generally, wall-mounted thermostats are more stable and convenient than portable thermostats and are suitable for various environments such as homes, offices, and commercial spaces.

[0003] Utility model patent CN203705984U discloses a wall-mounted thermostat, including a back cover with a battery mounting slot for housing a battery. A battery cover is located below the battery mounting slot, and a circuit board is positioned above it. A battery spring is connected to the circuit board, contacting the battery terminals. A front cover is mounted on the back cover, and the circuit board is fixed between the front and back covers with screws. A button is located on the circuit board, and a button hole is provided on the front cover. When the front and back covers are engaged, the button extends out of the button hole. The drawbacks of this wall-mounted thermostat are: low accuracy, and for long-distance temperature measurement, the time for temperature conduction to the sensing element is long, resulting in larger errors and further lower temperature control accuracy and unreliable temperature regulation.

[0004] Therefore, there is still room for improvement in existing technologies. Utility Model Content

[0005] To address the issues of low accuracy in existing technologies, and the long time it takes for temperature to travel to the sensing element for long-distance temperature measurement, resulting in larger errors, lower temperature control accuracy, and unreliable temperature regulation, this invention provides a wall-mounted thermostat with a temperature compensation resistor.

[0006] To achieve the above objectives, the technical solution applied in this utility model is as follows:

[0007] A wall-mounted thermostat with a temperature compensation resistor, used for temperature control in heating devices, includes a thermostat body. The thermostat body is equipped with a temperature compensation resistor, a mechanical switch, and a temperature switch. The temperature switch includes a push rod, a moving contact, a stationary contact, and a temperature sensing element. When the moving and stationary contacts are in contact, the heating circuit is activated. The two ends of the push rod are connected to the temperature sensing element and the moving contact, respectively. When the set temperature is reached, the temperature sensing element jumps, causing the push rod to disengage the moving contact relative to the stationary contact, thus disconnecting the heating circuit. The temperature compensation resistor is electrically connected to the stationary contact and is correspondingly positioned to compensate for the temperature of the temperature sensing element. The mechanical switch is used to manually control the heating circuit to be activated or deactivated.

[0008] According to the above scheme, the thermostat body is fixedly hung on the wall by a fixing pin. The thermostat body is provided with a mounting hole that cooperates with the fixing pin, and a limiting component corresponding to the fixing pin is provided in the mounting hole. The thermostat body is provided with a wire for connecting the power supply component and the heating device, and a protective component is provided on the outside of the wire.

[0009] According to the above scheme, a receiving groove is formed on the inner wall of the mounting hole, and the limiting component includes a limiting block and a spring. The spring is located between the limiting block and the inner wall of the receiving groove. The first end of the limiting block is slidably connected to the receiving groove, and the second end of the limiting block extends out of the receiving groove and is correspondingly limited by the fixing pin.

[0010] According to the above scheme, a guide rod is fixed inside the receiving groove, and a guide groove is provided on the limiting block, with the guide groove and the guide rod being slidably connected.

[0011] According to the above scheme, the inner wall of the receiving groove is provided with a slot 1, the limiting block is provided with a sliding groove 1, the sliding groove 1 is provided with elastic cotton and a locking block, the elastic cotton is located between the locking block and the inner wall of the sliding groove 1, the first end of the locking block is slidably connected to the sliding groove 1, and the second end of the locking block extends out of the sliding groove 1 and is locked in the corresponding position with the slot 1.

[0012] According to the above scheme, a slider is fixed on the card block, and a guide rod is fixed in the slide groove. The slider and the guide rod are slidably connected.

[0013] According to the above scheme, the protective component includes a mounting sleeve and a mounting cover. The mounting sleeve is fixed to the thermostat body, and the mounting cover is detachably mounted on the mounting sleeve. The inner wall of the mounting sleeve is provided with a protective cotton liner corresponding to the wire, and the inner wall of the mounting cover is provided with a protective cotton liner corresponding to the wire. The mounting sleeve is provided with a locking component corresponding to the mounting cover.

[0014] According to the above scheme, a connecting block is fixed on the inner wall of the mounting cover, the mounting cover is provided with a connecting groove corresponding to the connecting block, the connecting block is provided with a locking groove, the mounting cover is provided with a second receiving groove, and the locking assembly includes a sliding rod, a pull ring, a limiting ring, a second spring, and a sealing sleeve. The limiting ring and the second spring are located in the second receiving groove, the sealing sleeve is fixed to the opening of the second receiving groove, the pull ring is fixedly connected to the first end of the sliding rod, the second end of the sliding rod passes through the sealing sleeve, the second spring, and the limiting ring in sequence and extends out of the second receiving groove to lock corresponding to the locking groove, the two ends of the second spring abut against the inner wall of the second receiving groove and the limiting ring, and the limiting ring is fixedly connected to the sliding rod.

[0015] According to the above scheme, a second slider is fixed on the limiting ring, the second slider is provided with a groove, and a ball is provided in the groove. The ball is in rolling connection with the inner wall of the receiving groove.

[0016] According to the above scheme, the outer wall of the mounting cover is provided with a handle, and the handle is provided with an anti-slip pad.

[0017] The beneficial effects of this utility model are:

[0018] This invention is designed by adding a temperature compensation resistor. When the circuit is turned on, the temperature compensation resistor also generates heat to compensate for the temperature of the sensing element, shortening the time it takes for the ambient temperature to be conducted to the sensing element. It also provides some compensation for the transmission of ambient temperature over long distances, making the temperature measurement more accurate. This solves the problems of low accuracy in existing wall-mounted thermostats, and the long time it takes for the temperature to be conducted to the sensing element for long-distance temperature measurement, resulting in larger errors, lower temperature control accuracy, and unreliable temperature regulation. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0020] Figure 2 This is a schematic diagram of the internal structure of the thermostat body of this utility model;

[0021] Figure 3 yes Figure 2 Enlarged view of position A in the middle;

[0022] Figure 4 This is a circuit diagram of the present invention applied to a heating device;

[0023] Figure 5 This is a front-view sectional view of the overall structure of this utility model;

[0024] Figure 6 yes Figure 5 Enlarged view of position B in the middle;

[0025] Figure 7 yes Figure 6 Enlarged view of position C in the middle;

[0026] Figure 8 This is a cross-sectional view of the protective component of this utility model;

[0027] Figure 9 yes Figure 8 Enlarged view of position D in the middle;

[0028] Figure 10 yes Figure 9 Enlarged view of position E in the middle.

[0029] In the picture:

[0030] 1. Thermostat body; 11. Mounting hole; 2. Temperature compensation resistor; 3. Mechanical switch; 4. Temperature switch; 41. Push rod; 42. Moving contact; 43. Stationary contact; 51. Limit block; 52. Guide groove; 53. Guide rod; 54. Spring 1; 55. Slot 1; 56. Locking block; 57. Elastic cotton; 58. Slide groove 1; 59. Slider 1; 510. Guide rod; 511. Receiving groove 1; 6. Connecting wire; 71. Installation 72. Protective cotton 1; 73. Mounting cover; 74. Protective cotton 2; 75. Handle; 76. Anti-slip pad; 77. Connecting groove; 78. Connecting block; 79. Locking groove; 710. Slide rod; 713. Pull ring; 714. Limiting ring; 716. Sliding block 2; 717. Groove; 718. Ball bearing; 719. Spring 2; 720. Sealing sleeve; 723. Receiving groove 2; 8. Power supply assembly; 9. Heating device; 10. Temperature sensing element. Detailed Implementation

[0031] The technical solution of this utility model will be described below with reference to the accompanying drawings and embodiments.

[0032] like Figures 1 to 10 As shown, the present invention discloses a wall-mounted thermostat with a temperature compensation resistor, used for temperature control of a heating device 9. It includes a thermostat body 1, a temperature compensation resistor 2, a mechanical switch 3, and a temperature switch 4. The temperature switch 4 includes a push rod 41, a moving contact 42, a stationary contact 43, and a temperature sensing element 10. When the contacts of the moving contact 42 and the stationary contact 43 are in contact, the heating circuit is activated. The two ends of the push rod 41 are connected to the temperature sensing element 10 and the moving contact 42, respectively. When the set temperature is reached, the temperature sensing element 10 jumps, causing the push rod 41 to push the moving contact 42 away from the stationary contact 43, thus disconnecting the heating circuit. The temperature compensation resistor 2 is electrically connected to the stationary contact 43 and is correspondingly positioned to provide temperature compensation for the temperature sensing element 10. The mechanical switch 3 is used to manually control the heating circuit to be activated or deactivated.

[0033] Currently, most wall-mounted thermostats on the market lack a temperature compensation resistor 2. They typically consist of a mechanical switch 3 and a temperature switch 4. When the circuit is open, the heating device 9 heats up. When the set temperature is reached, the temperature sensor 10 jumps, causing the push rod 41 to push the moving contact 42 away from the stationary contact 43, disconnecting the heating circuit and stopping the heating device 9. When the indoor temperature drops to a certain level, the temperature sensor 10 resets, causing the push rod 41 to pull the contacts of the moving contact 42 and the stationary contact 43 back into contact, reheating, and so on. However, this structure has the problem of low accuracy, and for long-distance temperature measurement, the time for temperature to be conducted to the temperature sensor 10 is long, resulting in a large error and further lower temperature control accuracy and unreliable temperature regulation.

[0034] To address this technical problem, this utility model makes further improvements based on existing technology, specifically, as follows: Figures 2 to 4 As shown, by adding a temperature compensation resistor 2, after the circuit is turned on (i.e., when the mechanical switch 3 and the temperature switch 4 are closed), the heating device 9 heats up, and at the same time, the temperature compensation resistor 2 also generates heat to compensate for the temperature of the sensing element 10. This shortens the time it takes for the ambient temperature to be conducted to the sensing element 10, and also provides some compensation for the transmission of ambient temperature over long distances, making the temperature measurement more accurate. This solves the problem that existing wall-mounted thermostats have low accuracy, and for long-distance temperature measurement, the time it takes for the temperature to be conducted to the sensing element 10 is long, resulting in large errors, which leads to lower temperature control accuracy and unreliable temperature regulation.

[0035] Preferably, the reset temperature difference of the temperature sensing element 10 is about 3°C. The heating device 9 can be set to raise the room temperature by up to 0.5°C. Under the effect of temperature compensation, the temperature sensing element 10 will rise by about 3°C ​​and trip. When the room temperature drops by 0.5°C, the temperature sensing element 10 will drop by about 3°C ​​and reset. Under the effect of temperature compensation resistor 2, the room temperature will be kept constant within 0.5°C.

[0036] Furthermore, the thermostat body 1 is fixedly hung on the wall by a fixing pin. The thermostat body 1 has a mounting hole 11 that cooperates with the fixing pin, and a limiting component corresponding to the fixing pin is provided in the mounting hole 11. The thermostat body 1 has a wire 6 for connecting the power supply component 8 and the heating device 9, and the wire 6 is protected by a protective component. In this way, the wall-mounted thermostat with temperature compensation resistor is fixed to the wall by the fixing pin and the mounting hole 11. Compared with the cumbersome fixing method of bolts and screw holes in the prior art, the installation and disassembly are more convenient and faster, saving labor, and subsequent maintenance is also more convenient.

[0037] In practical applications, during installation, the fixing pin is fixed to the wall, and then the wall-mounted thermostat with temperature compensation resistor is aligned with the fixing pin through the mounting hole 11 and pushed in to hang it, so that the wall-mounted thermostat with temperature compensation resistor is fixedly hung on the wall.

[0038] Furthermore, the inner wall of the mounting hole 11 is formed with a receiving groove 511. The limiting component includes a limiting block 51 and a spring 54. The spring 54 is located between the limiting block 51 and the inner wall of the receiving groove 511. The first end of the limiting block 51 is slidably connected to the receiving groove 511, and the second end of the limiting block 51 extends out of the receiving groove 511 and is correspondingly limited by the fixing pin. With this configuration, during assembly, the wall-mounted thermostat with temperature compensation resistor is pushed in through the mounting hole 11, aligned with the fixing pin. When pushed in, the fixing pin contacts the limiting block 51, and under the action of the pushing force, the fixing pin pushes the limiting block 51 to compress the spring 54, causing the limiting block 51 to retract relative to the receiving groove 511. When pushed in to a certain position, the wall-mounted thermostat with temperature compensation resistor is released. At this time, under the elastic force of the spring 54, the limiting block 51 is pushed to limit and lock the fixing pin, which can prevent loosening after long-term use.

[0039] Preferably, there are two mounting holes 11, and each mounting hole 11 is provided with two sets of limiting components, which makes the fixing effect more secure.

[0040] Furthermore, a guide rod 53 is fixed inside the receiving groove 511, and a guide groove 52 is provided on the limiting block 51, with the guide groove 52 slidably connected to the guide rod 53. With this arrangement, the limiting block 51 slides linearly under the combined action of the guide groove 52 and the guide rod 53, resulting in a more stable sliding effect.

[0041] Furthermore, the inner wall of the receiving groove 511 is provided with a slot 55, and the limiting block 51 is provided with a sliding groove 58. The sliding groove 58 is provided with an elastic cotton 57 and a locking block 56. The elastic cotton 57 is located between the locking block 56 and the inner wall of the sliding groove 58. The first end of the locking block 56 is slidably connected to the sliding groove 58, and the second end of the locking block 56 extends out of the sliding groove 58 and is locked in place with the slot 55. This configuration, through the cooperation of the locking block 56 and the slot 55, limits the positioning of the limiting block 51. On one hand, it prevents the limiting block 51 from dislodging from the receiving slot 511; on the other hand, it further enhances the locking effect of the fixing pin. Specifically, in the initial state, the locking block 56 and the slot 55 are engaged. When the mounting hole 11 is aligned with the fixing pin and pushed in, the fixing pin pushes the limiting block 51 to compress the spring 54. The movement of the limiting block 51 causes the locking block 56 to compress the elastic cotton 57, causing the locking block 56 to slide out of the slot 55. At this time, under the action of the elastic cotton 57, the locking block 56 abuts against the inner wall of the receiving slot 511, effectively providing a lateral limiting force to the limiting block 51, further enhancing the locking effect of the fixing pin. Figure 6 and Figure 7 As shown, spring 54 provides a downward thrust to the limiting block 5, while elastic cotton 57 and locking block 56 provide a lateral thrust to the limiting block 51.

[0042] In practical applications, the outer wall of the locking block 56 is inclined, which makes it easy to slide out of the slot 55 under the action of force; elastic cotton 57 and locking block 56 are respectively provided on both sides of the limiting block 51. After the locking blocks 56 on both sides are dislodged from the slot 55, they abut against the inner walls of the two sides of the receiving groove 511, and the locking effect is more secure.

[0043] Furthermore, a slider 59 is fixed on the locking block 56, and a guide rod 510 is fixed inside the sliding groove 58. The slider 59 and the guide rod 510 are slidably connected. This arrangement allows the locking block 56 to slide linearly, resulting in a more stable sliding effect.

[0044] Furthermore, the protective assembly includes a mounting sleeve 71 and a mounting cover 73. The mounting sleeve 71 is fixed to the thermostat body 1, and the mounting cover 73 is detachably mounted on the mounting sleeve 71. The inner wall of the mounting sleeve 71 is provided with a protective cotton 72 corresponding to the wire 6, and the inner wall of the mounting cover 73 is provided with a protective cotton 74 corresponding to the wire 6. The mounting sleeve 71 is provided with a locking assembly corresponding to the mounting cover 73. This arrangement, through the cooperation of the mounting sleeve 71 and the mounting cover 73, protects the wire 6 and prevents damage to it.

[0045] Furthermore, a connecting block 78 is fixed on the inner wall of the mounting cover 73. The mounting cover 73 is provided with a connecting groove 77 corresponding to the connecting block 78. The connecting block 78 is provided with a locking groove 79. The mounting cover 73 is provided with a second receiving groove 723. The locking assembly includes a slide rod 710, a pull ring 713, a limiting ring 714, a second spring 719, and a sealing sleeve 720. The limiting ring 714 and the second spring 719 are located in the second receiving groove 723. The sealing sleeve 720 is fixed to the opening of the second receiving groove 723. The pull ring 713 is fixedly connected to the first end of the slide rod 710. The second end of the slide rod 710 passes through the sealing sleeve 720, the second spring 719, and the limiting ring 714 in sequence and extends out of the second receiving groove 723 to lock correspondingly with the locking groove 79. The two ends of the second spring 719 abut against the inner wall of the second receiving groove 723 and the limiting ring 714. The limiting ring 714 is fixedly connected to the slide rod 710. With this configuration, during assembly, pulling the pull ring 713 causes the slide rod 710 and the limiting ring 714 to compress the second spring 719, thus clearing the assembly space for the connecting block 78. When the connecting block 78 is assembled in the connecting groove 77, the pull ring 713 is released, and under the rebound force of the second spring 719, the limiting ring 714 and the slide rod 710 are pushed to move, causing the slide rod 710 to extend out of the receiving groove 723 and lock in place with the locking groove 79.

[0046] Furthermore, a second slider 716 is fixed on the limiting ring 714. The second slider 716 has a groove 717, and a ball bearing 718 is provided in the groove 717. The ball bearing 718 is in rolling connection with the inner wall of the receiving groove 723. This arrangement allows the limiting ring 714 to slide linearly, resulting in a more stable sliding effect.

[0047] Furthermore, the outer wall of the mounting cover 73 is provided with a handle 75, and the handle 75 is provided with an anti-slip pad 76. This design makes installation and removal convenient, and also makes subsequent maintenance easier.

[0048] The embodiments of the present utility model have been described above with reference to the accompanying drawings. However, the present utility model is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of the present utility model without departing from the spirit and scope of the claims. All of these forms are within the scope of protection of the present utility model.

Claims

1. A wall-mounted thermostat with a temperature compensation resistor, used for temperature control of a heating device (9), characterized in that: The device includes a thermostat body (1), which is equipped with a temperature compensation resistor (2), a mechanical switch (3), and a temperature switch (4). The temperature switch (4) includes a push rod (41), a moving contact (42), a stationary contact (43), and a temperature sensing plate (10). When the contacts of the moving contact (42) and the stationary contact (43) are in contact, the heating circuit is turned on. The two ends of the push rod (41) are respectively connected to the temperature sensing plate (10) and the moving contact (42). When the heating reaches the set temperature, the temperature sensing plate (10) jumps and drives the push rod (41) to push the moving contact (42) away from the stationary contact (43), and the heating circuit is turned off. The temperature compensation resistor (2) is electrically connected to the stationary contact (43). The temperature compensation resistor (2) is set in correspondence with the temperature sensing sheet (10) and is used to compensate the temperature of the temperature sensing sheet (10). The mechanical switch (3) is used to manually control the heating circuit to be turned on or off.

2. A wall-mounted thermostat with a temperature compensation resistor according to claim 1, characterized in that: The thermostat body (1) is fixedly hung on the wall by a fixing pin. The thermostat body (1) is provided with a mounting hole (11) that cooperates with the fixing pin, and a limiting component corresponding to the fixing pin is provided in the mounting hole (11). The thermostat body (1) is provided with a wire (6) for connecting the power supply component (8) and the heating device (9), and a protective component is provided on the outside of the wire (6).

3. A wall-mounted thermostat with a temperature compensation resistor according to claim 2, characterized in that: The inner wall of the mounting hole (11) is formed with a receiving groove (511). The limiting component includes a limiting block (51) and a spring (54). The spring (54) is located between the limiting block (51) and the inner wall of the receiving groove (511). The first end of the limiting block (51) is slidably connected to the receiving groove (511), and the second end of the limiting block (51) extends out of the receiving groove (511) and is correspondingly limited by the fixing pin.

4. A wall-mounted thermostat with a temperature compensation resistor according to claim 3, characterized in that: A guide rod (53) is fixed inside the receiving groove (511), and a guide groove (52) is provided on the limiting block (51). The guide groove (52) is slidably connected to the guide rod (53).

5. A wall-mounted thermostat with a temperature compensation resistor according to claim 3, characterized in that: The inner wall of the receiving groove (511) is provided with a slot (55), and the limiting block (51) is provided with a sliding groove (58). The sliding groove (58) is provided with an elastic cotton (57) and a locking block (56). The elastic cotton (57) is located between the locking block (56) and the inner wall of the sliding groove (58). The first end of the locking block (56) is slidably connected to the sliding groove (58), and the second end of the locking block (56) extends out of the sliding groove (58) and is locked in place with the slot (55).

6. A wall-mounted thermostat with a temperature compensation resistor according to claim 5, characterized in that: A slider (59) is fixed on the card block (56), and a guide rod (510) is fixed in the groove (58). The slider (59) and the guide rod (510) are slidably connected.

7. A wall-mounted thermostat with a temperature compensation resistor according to claim 2, characterized in that: The protective assembly includes a mounting sleeve (71) and a mounting cover (73). The mounting sleeve (71) is fixed to the thermostat body (1). The mounting cover (73) is detachably mounted on the mounting sleeve (71). The inner wall of the mounting sleeve (71) is provided with a protective cotton 1 (72) corresponding to the wire (6). The inner wall of the mounting cover (73) is provided with a protective cotton 2 (74) corresponding to the wire (6). The mounting sleeve (71) is provided with a locking assembly corresponding to the mounting cover (73).

8. A wall-mounted thermostat with a temperature compensation resistor according to claim 7, characterized in that: A connecting block (78) is fixed on the inner wall of the mounting cover (73). The mounting cover (73) is provided with a connecting groove (77) corresponding to the connecting block (78). The connecting block (78) is provided with a locking groove (79). The mounting cover (73) is provided with a second receiving groove (723). The locking assembly includes a slide rod (710), a pull ring (713), a limiting ring (714), a second spring (719), and a sealing sleeve (720). The limiting ring (714) and the second spring (719) are located in the second receiving groove (723). Inside, the sealing sleeve (720) is fixed to the opening of the receiving groove (723), the pull ring (713) is fixedly connected to the first end of the slide rod (710), the second end of the slide rod (710) passes through the sealing sleeve (720), the second spring (719) and the limiting ring (714) in sequence and extends out of the receiving groove (723) to lock correspondingly with the locking groove (79), the two ends of the second spring (719) abut against the inner wall of the receiving groove (723) and the limiting ring (714), and the limiting ring (714) is fixedly connected to the slide rod (710).

9. A wall-mounted thermostat with a temperature compensation resistor according to claim 8, characterized in that: A second slider (716) is fixed on the limiting ring (714). The second slider (716) has a groove (717) and a ball (718) is provided in the groove (717). The ball (718) is in rolling connection with the inner wall of the receiving groove (723).

10. A wall-mounted thermostat with a temperature compensation resistor according to claim 7, characterized in that: The mounting cover (73) has a handle (75) on its outer wall, and the handle (75) has an anti-slip pad (76).

Images