A thermostat

By introducing temperature sensors and real-time temperature monitoring on the circuit board into the thermostat, combined with the expansion and deformation of the alloy lead screw and metal sheet, the problem of the existing thermostat's inability to monitor temperature in real time is solved, realizing real-time temperature monitoring and overheat protection of the thermostat, thus improving reliability and safety.

CN111883386BActive Publication Date: 2025-11-11BACKER HEATING TECH (SHENZHEN) CO LTD
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Patent Information

Application Number
CN202010884258.8
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2020-08-28
Publication Date
2025-11-11
Estimated Expiration
2040-08-28

AI Technical Summary

Technical Problem

Existing temperature controllers cannot monitor temperature in real time, resulting in ineffective temperature control and safety protection.

Method used

A temperature controller was designed, comprising a base, conductive components, a switch pressing component, a temperature sensing component, and a temperature detection component. It senses the ambient temperature in real time through a temperature detection component and connects to an external controller for real-time temperature monitoring through a circuit board and connector. Overheat protection is achieved by combining the expansion and deformation of the alloy lead screw and metal sheet.

Benefits of technology

实现了温控器的实时温度监测和过热保护,提高了温控器的可靠性和安全性,降低了制造成本。

✦ Generated by Eureka AI based on patent content.

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Abstract

This invention discloses a temperature controller, comprising: a base; a conductive component and a switch pressing component disposed within the base; a temperature sensing component with one end connected to the switch pressing component and the other end extending outward from the base; and a temperature detection component connected to both the base and the temperature sensing component. The temperature detection component includes a temperature sensor disposed within the temperature sensing component, a circuit board located within the base and connected to the temperature sensor, and a connector disposed on the circuit board. In this embodiment, the temperature controller performs real-time temperature detection through the temperature sensor, and then connects to an external controller via the connector to read the real-time temperature value obtained by the temperature sensor. Therefore, real-time temperature monitoring can be achieved, greatly improving the reliability of the temperature controller.
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Description

Technical Field

[0001] This invention relates to the field of temperature control technology, and in particular to a temperature controller. Background Technology

[0002] Thermostats are used to control the operation of equipment to achieve ideal temperature and energy-saving effects. They have a wide range of applications, including home appliances, motors, refrigeration and heating products, depending on the type of thermostat.

[0003] In the existing technology, the most commonly used temperature controller is the metal strip temperature controller. The metal strip temperature controller uses the principle that different objects expand and contract differently when heated. Under changing temperatures, the bimetallic strip deforms due to the different degrees of expansion and contraction. The mechanism touches or leaves the set contact or switch, so as to start or stop the set circuit to work, thereby achieving the purpose of temperature control. However, the existing temperature controllers cannot monitor the temperature in real time.

[0004] Therefore, existing technologies still need to be improved and enhanced. Summary of the Invention

[0005] In view of the shortcomings of the prior art, the purpose of the present invention is to provide a thermostat that overcomes the defect that existing thermostats cannot monitor temperature.

[0006] The technical solution adopted by this invention to solve the technical problem is as follows:

[0007] This invention provides a temperature controller, comprising: a base; a conductive component and a switch pressing component disposed within the base; a temperature sensing component having one end connected to the switch pressing component and the other end extending out of the base; and a temperature detection component connected to the base and the temperature sensing component respectively.

[0008] The temperature sensing component includes a temperature detector disposed within the temperature sensing component, a circuit board located within the base and connected to the temperature detector, and a connector disposed on the circuit board.

[0009] As a further improved technical solution, in the thermostat, the conductive component includes: a first terminal block, a second terminal block, a switch spring, a first electrical connector, a second electrical connector, a first movable contact, and a second movable contact, all disposed within the base; one end of the first movable contact is connected to the first terminal block, and the other end is connected to the first electrical connector; one end of the second movable contact is connected to the second terminal block, and the other end is provided with a first active contact; one end of the switch spring is connected to the second electrical connector, and the other end is provided with a first passive contact for contacting the first active contact.

[0010] As a further improved technical solution, in the thermostat, the switch pressing assembly includes: a support portion disposed in the base, a connecting portion connected to the support portion, and a power contact disposed on the connecting portion and located at one end of the switch spring; wherein, the power contact is used to press against one end of the switch spring to separate the first active contact and the first passive contact.

[0011] As a further improved technical solution, in the temperature controller, the temperature sensing component includes: an adjusting nut, a temperature sensing rod, and an alloy lead screw; the adjusting nut is disposed on the switch pressing assembly, one end of the temperature sensing rod is connected to the adjusting nut, one end of the alloy lead screw abuts against the bottom surface of the base, and the other end of the temperature sensing rod is fixedly connected to the other end of the alloy lead screw.

[0012] As a further improved technical solution, the thermostat further includes an overheat protection component connected to the base; the overheat protection component includes a metal plate base connected to the bottom surface of the base, a metal plate disposed within the metal plate base, a first push rod disposed within the base and connected to the metal plate, and a second push rod perpendicularly connected to the push rod; wherein, a first protrusion is provided on one end of the second push rod and a second protrusion is provided on the other end; the first protrusion and the second protrusion are used to disconnect the conductive component.

[0013] As a further improved technical solution, in the thermostat, a second passive contact is provided on one end of the switch spring, and a first groove adapted to the shape of the second passive contact is provided on the power contact.

[0014] As a further improved technical solution, the thermostat further includes a faceplate connected to the base and a nut cover that passes through the faceplate and is connected to the adjusting nut; wherein, the base is provided with multiple buckles around its perimeter, and the faceplate is provided with a lug for connecting to the buckles.

[0015] As a further improved technical solution, in the thermostat, the connecting part is provided with a motion groove that matches the shape of the first push rod; the first push rod passes through the motion groove and is located on the support part.

[0016] As a further improved technical solution, the thermostat further includes a limiting bracket disposed on the base and movably connected to one end of the switch spring.

[0017] As a further improvement, the thermostat has a reset hole on the housing corresponding to the position of the first push rod.

[0018] Compared with the prior art, the embodiments of the present invention have the following advantages:

[0019] The thermostat provided in this embodiment of the invention includes: a base; a conductive component and a switch pressing component disposed within the base; a temperature sensing component with one end connected to the switch pressing component and the other end extending out of the base; and a temperature detection component connected to the base and the temperature sensing component respectively; wherein the temperature detection component includes a temperature sensor disposed within the temperature sensing component, a circuit board located within the base and connected to the temperature sensor, and a connector disposed on the circuit board. In this embodiment, the thermostat performs real-time temperature detection through the temperature sensor, and then connects to an external controller via the connector to read the real-time temperature value obtained by the temperature sensor, thus achieving real-time temperature monitoring and greatly improving the reliability of the thermostat. Attached Figure Description

[0020] Figure 1 A schematic diagram of the structure of a temperature controller provided by the present invention;

[0021] Figure 2 This is a schematic diagram of the structure of a conductive component in a temperature controller provided by the present invention;

[0022] Figure 3 A schematic diagram of the signal detection component, temperature sensing component, and switch pressing component in a temperature controller provided by the present invention;

[0023] Figure 4 A schematic diagram of the structure of a switch spring in a thermostat provided by the present invention;

[0024] Figure 5 A schematic diagram of the structure of a limiting bracket in a temperature controller provided by the present invention;

[0025] Figure 6 A schematic diagram of the structure of an overheat protection component in a thermostat provided by the present invention;

[0026] Figure 7 This is a schematic diagram of the metal plate base in the overheat protection assembly;

[0027] Figure 8 A bottom view of the base in a thermostat provided by the present invention;

[0028] Figure 9 A top view of a base in a thermostat provided by the present invention;

[0029] Figure 10 This is a schematic diagram of the assembly structure in a temperature controller provided by the present invention.

[0030] In the diagram: 100, base; 200, conductive component; 300, switch pressing component; 400, temperature sensing component; 500, temperature detection component; 510, temperature detection element; 520, circuit board; 530, connecting wire; 210, first terminal block; 220, second terminal block; 230, switch spring; 240, first electrical connector; 250, second electrical connector; 260, first moving contact; 270, second moving contact; 271, first active contact; 231, first passive contact; 232, abutment arm; 211, first conductive plate; 212, first wire fixing bolt; 221, second conductive plate; 222, second wire fixing bolt; 310, support part; 320, connecting part; 330, Power contact; 233, Second passive contact; 234, First through groove; 235, Abutment joint; 600, Limiting bracket; 610, First base plate; 620, First side plate; 630, Second side plate; 631, Abutment groove; 410, Adjustment nut; 420, Temperature sensing rod; 430, Alloy lead screw; 110, First through hole; 700, Overheat protection component; 701, Metal plate base; 710, Metal plate; 720, First push rod; 730, Second push rod; 731, First protrusion; 732, Second protrusion; 321, Motion groove; 800, Face shell; 900, Nut cover; 120, Buckle; 810, Hanging ear; 820, Scale area; 830, Reset hole. Detailed Implementation

[0031] To make the objectives, technical solutions, and effects of this invention clearer and more explicit, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

[0032] In the implementation methods and the scope of the patent application, unless otherwise specified in the text, “a” and “the” may refer to a single or multiple entities.

[0033] Furthermore, if the embodiments of this invention involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. If the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this invention.

[0034] This invention discloses a temperature controller, please refer to the following: Figures 1 to 3The temperature controller includes: a base 100; a conductive component 200 and a switch pressing component 300 disposed within the base 100; a temperature sensing component 400 with one end connected to the switch pressing component 300 and the other end extending out of the base 100; and a temperature detection component 500 connected to the base 100 and the temperature sensing component 400 respectively; wherein, the temperature detection component 500 includes a temperature sensor 510 disposed within the temperature sensing component 400, a circuit board 520 located within the base 100 and connected to the temperature sensor 510, and a connector (not shown in the figure) disposed on the circuit board 520; the temperature sensor 510 is electrically connected to the circuit board 520 via a connecting wire 530.

[0035] In this embodiment of the invention, the conductive component 200 is used to connect to an external power source and to connect to an electric heating element (such as various electrical appliances or motors). The temperature sensing component 400 is used to sense the ambient temperature and, in response to changes in ambient temperature, undergoes thermal expansion and contraction, thereby causing the switch pressing component 300 to disconnect the connection between the conductive component 200 and the power source. A temperature sensor 510 disposed within the temperature sensing component 400 is used to sense the ambient temperature in real time. A circuit board 520 connected to the temperature sensor 510 acquires the temperature value in real time, and a connector on the circuit board 520 connects to an external controller (such as a multimeter or ohmmeter). The external controller reads the real-time temperature value of the temperature sensor 510, thereby achieving real-time monitoring of the temperature of the electric heating element. Compared to traditional fully mechanical temperature controllers, the structure is simpler, thus reducing the manufacturing cost of the temperature controller. The temperature controller provided by this invention greatly improves the reliability of the temperature controller and provides reliable safety protection for the electric heating element.

[0036] In practical use, the temperature detection element 510 is a thermistor or thermocouple, the connecting line 530 is a wire, and the connector can be any type of electrical connector.

[0037] Of course, an IC chip (not shown in the figure) can also be installed on the circuit board 520 to read the temperature value of the temperature sensor 510, and the connector can also be a communication module (such as a Bluetooth module or a wireless module). Real-time temperature values ​​can be read by connecting to the connector via an external terminal (such as a mobile phone). It should be understood that the IC chip and communication module are existing technologies, and their specific models and working principles will not be described in detail here.

[0038] It should be noted that there are no specific limitations on the model of the temperature detection element 510 and the circuit board 520.

[0039] For further details, please refer to [link / reference]. Figure 2The conductive component 200 includes: a first terminal 210, a second terminal 220, a switch spring 230, a first electrical connector 240, a second electrical connector 250, a first movable contact 260, and a second movable contact 270 disposed within the base 100; one end of the first movable contact 260 is connected to the first terminal 210, and the other end is connected to the first electrical connector 240; one end of the second movable contact 270 is connected to the second terminal 220, and the other end is provided with a first movable contact 260. An active contact 271 is provided; one end of the switch spring 230 is connected to the second electrical connector 250, and the other end is provided with a first passive contact 231 for contacting the first active contact 271; the first moving contact 260 and the second moving contact 270 are elongated arc-shaped and elastic; the switch spring 230 is provided with an abutment arm 232, which is connected to the switch spring 230 at a preset angle, wherein one end of the abutment arm 232 is connected to the switch spring 230, and the other end abuts against the base 100.

[0040] In this embodiment of the invention, the first terminal 210 and the second terminal 220 are used to connect to a power source; the first movable contact 260 is used to transmit current between the first terminal 210 and the first electrical connector 240; the second movable contact 270 is used to transmit current between the first terminal 210 and the switch spring 230; and the first electrical connector 240 and the second electrical connector 250 are used to connect to an electric heating element. The first terminal 210 includes a first conductive plate 211 for connecting to the positive terminal of the power source (not shown in the figure), and a first fixing bolt 212 for connecting the positive terminal of the power source and the first conductive plate 211; one end of the first movable contact 260 is screwed and fixed to the first conductive plate 211, and the other end is connected to one end of the first electrical connector 240, with the other end of the first electrical connector 240 extending out of the base 100. The second terminal 220 includes a second conductive plate 221 for connecting the negative terminal of the power supply (not shown in the figure), and a second fixing bolt 222 for connecting the negative terminal of the power supply and the second conductive plate 221. One end of the second moving contact 270 is screwed to the second conductive plate 221, and the other end is provided with a first active contact 271. One end of the switch spring 230 is connected to one end of the second electrical plug 250, and the other end is provided with a first passive contact 231 for contacting the first active contact 271. The other end of the second electrical plug 250 extends out of the base 100. When both the first terminal 210 and the second terminal 220 are energized, the supporting force provided by the abutment arm 232 keeps the first passive contact 231 and the first active contact 271 in abutment, and both the first electrical plug 240 and the second electrical plug 250 are energized. The heating element connected to the first electrode plug and the second electrical plug 250 is in an energized state.

[0041] As a further step, please refer to the following: Figure 3 and Figure 4The switch engagement assembly 300 includes: a support portion 310 disposed within the base 100, a connecting portion 320 connected to the support portion 310, and a power contact 330 disposed on the connecting portion 320 and located at one end of the switch spring 230; wherein, the power contact 330 is used to engage with one end of the switch spring 230, separating the first active contact and the first passive contact 231. Specifically, the support portion 310 is fixedly disposed within the base 100, the connecting portion 320 is connected to the temperature sensing assembly 400, one end of the connecting portion 320 is perpendicularly connected to the support portion 310, and the other end of the connecting portion 320 is perpendicularly connected to the power contact 330, and the power contact 330 is located above the switch spring 230. In the energized state, the power contact 330 is in a separated state from one end of the switch spring 230. When the ambient temperature is too high, the temperature sensing component 400 expands due to heat, causing the connecting part 320 to move downward. The power contact 330 on the other end of the connecting part 320 moves downward and presses against one end of the switch spring 230, thereby causing the switch spring 230 to move downward. The first passive contact 231 on the other end of the switch spring 230 and the first active contact 271 on the second moving contact 270 separate, and both the first electrical plug 240 and the second electrical plug 250 are de-energized. The electric heating element connected to the first electrical plug 240 and the second electrical plug 250 is in a de-energized state.

[0042] For details, please continue reading. Figure 4 The switch spring 230 has a second passive contact 233 at one end, and the power contact 330 has a first groove that matches the shape of the second passive contact 233. When the power contact 330 moves downward, it can be quickly positioned with the second passive contact 233 through the first groove, accurately separating the switch spring 230 and the second power contact 270.

[0043] For more details, please see Figure 5The thermostat also includes a limiting frame 600 disposed on the base 100 and movably connected to one end of the switch spring 230. The switch spring 230 has a first through groove 234 at one end. The limiting frame 600 includes a first base plate 610 connected to the base 100, a first side plate 620 and a second side plate 630 perpendicularly connected to the first base plate 610. The first side plate 620 is located within the first through groove 234. The second side plate 630 has an abutment groove 631. An abutment arm 232 has an abutment joint 235 that abuts against the abutment groove 631. When the power contact 330 is pressed against the second passive contact 233, the first through groove 234 moves downward along the first side plate 620, the abutment 235 is subjected to downward pressure and abuts against the abutment groove 631, and the other end of the switch spring 230 connected to one end of the abutment arm 232 moves downward, thereby causing the first passive contact 231 and the first active contact 271 to separate.

[0044] For further information, please refer to [link / reference]. Figure 3 The temperature sensing component 400 includes: an adjustment nut 410, a temperature sensing rod 420, and an alloy lead screw 430; the adjustment nut 410 is disposed on the switch pressing component 300, one end of the temperature sensing rod 420 is connected to the adjustment nut 410, one end of the alloy lead screw 430 abuts against the bottom surface of the base 100, and the other end of the temperature sensing rod 420 is fixedly connected to the other end of the alloy lead screw 430.

[0045] In this embodiment of the invention, the adjusting nut 410 is disposed on one side of the connecting portion 320. One end of the temperature sensing rod 420 passes through the connecting portion 320 from the other side and is screwed and fixed to the adjusting nut 410. The other end of the temperature sensing rod 420 is fixedly connected to the other end of the alloy lead screw. One end of the alloy lead screw 430 abuts against the bottom surface of the base 100. The alloy lead screw 430 is made of a low-expansion-coefficient alloy, and its expansion coefficient is lower than that of the temperature sensing rod 420. In practical use, the alloy lead screw is used to sense changes in ambient temperature. For example, when the external temperature rises, the alloy lead screw 430 will expand. One end of the alloy lead screw 430 cannot move because it is in contact with the bottom surface of the base 100. At this time, the other end of the alloy lead screw 430 is not constrained, so it will drive the other end of the temperature sensing rod 420 to move (downward). The end of the temperature sensing rod 420 is under tension, which will drive the adjusting nut 410 to move downward. The connecting part 320 will move downward at the same time, so that the power contact 330 moves downward and presses against the second passive contact 233, thereby separating the first passive contact 231 and the first active contact 271, and de-energizing the first electrical connector 240 and the second electrical connector 250.

[0046] As a further step, please refer to the following: Figure 6 and Figure 9 To prevent the temperature sensing component 400 from failing and failing to disconnect the switch pressing component 300 in time, the temperature controller further includes a metal plate base 701 connected to the bottom surface of the base 100; a metal plate 710 disposed within the metal plate base 701; a first push rod 720 disposed within the base 100 and connected to the metal plate 710; and a second push rod 730 perpendicularly connected to the push rod; wherein, a first protrusion 731 is provided on one end of the second push rod 730 and a second protrusion 732 is provided on the other end; the first protrusion 731 and the second protrusion 732 are used to disconnect the conductive component 200.

[0047] In this embodiment of the invention, the bottom surface of the base 100 is connected to a bracket, and a first through hole 110 for limiting the movement track of the first push rod 720 is provided in the middle of the bracket. The metal plate base 701 is connected to the bottom surface of the base (e.g., by screwing, welding, or gluing). The metal plate 710 is circular, and the center of the metal plate 710 is connected to the bottom of the first push rod 720. The first protrusion 731 is located below the first movable contact piece 260, and the second protrusion 732 is located below the second movable contact piece 270. The upward side of the metal plate 710 (the surface connected to the bottom of the first push rod 720) is a concave arc surface, and the downward side of the metal plate 710 is a convex arc surface. The metal sheet 710 has different metal materials on its upward and downward sides. The metal sheet 710 is used to sense whether the ambient temperature exceeds a preset maximum temperature. When the ambient temperature exceeds the preset maximum temperature, the metal sheet 710 will undergo overheating deformation. For example, if a metal sheet 710 that deforms at an ambient temperature of 85 degrees Celsius is selected, then the upward side of the metal sheet 710 will deform into a convex arc surface, and the downward side will deform into a concave arc surface. Thus, through the reverse deformation of the metal sheet 710, an upward... The thrust causes the first push rod 720 to move upward, and the second push rod 730 connected to the first push rod 720 moves accordingly. The first protrusion 731 and the second protrusion 732 located at both ends of the second push rod 730 abut against the first moving contact 260 and the second moving contact 270 respectively, causing the first active contact 271 on the other end of the second moving contact 270 and the first passive contact 231 on the other end of the switch spring 230 to separate, thereby de-energizing the first electrical plug 240 and the second electrical plug 250, thus achieving overheat protection for the electric heating element.

[0048] When it is necessary to reconnect the first electrical connector 240 and the second electrical connector 250, the metal piece 710 can be restored to its original state by pushing the first push rod 720 downward. Then, the first protrusion 731 and the second protrusion 732 separate from the first moving contact piece 260 and the second moving contact piece 270, so that the first active contact 271 on the other end of the second moving contact piece 270 and the first passive contact 231 on the other end of the switch spring piece 230 re-contact each other, so that the first electrical connector 240 and the second electrical connector 250 are energized.

[0049] Specifically, the connecting portion 320 has a movement groove 321 that matches the shape of the first push rod 720; the first push rod 720 passes through the movement groove 321 and is located on the support portion 310. When the first push rod 720 is pushed upward by the metal plate 710, the top of the first push rod 720 passes through the movement groove 321, and the movement groove 321 fixes the first push rod 720 onto its movement track.

[0050] As a further option, please refer to Figure 10 The thermostat also includes a faceplate 800 connected to the base 100 and a nut cover 900 that passes through the faceplate 800 and is connected to the adjusting nut 410; wherein, the base 100 is provided with a plurality of buckles 120 around its perimeter, and the faceplate 800 is provided with a lug 810 for connecting to the buckles 120.

[0051] Specifically, a scale area 820 is provided on the faceplate 800. The scale area 820 is used to mark values. When adjusting the adjusting nut 410 through the nut cover 900, adjusting it to different values ​​corresponds to adjusting the tightness of one end of the adjusting nut 410 and the temperature sensing rod 420. Different tightnesses between the adjusting nut 410 and one end of the temperature sensing rod 420 can realize the switching on and off of the conductive component 200 within different temperature ranges. For example, if the counterclockwise rotation value within the scale area 820 is 1 to 5, it means that the value 1 corresponds to the state where one end of the adjusting nut 410 and the temperature sensing rod 420 is tightened to the maximum (at this time, right-hand rotation is the default tightening). The corresponding distance between the connecting part 320 and the adjusting nut 410 is also the minimum, and the adjusting nut 410 and the connecting part 320 are in close contact (because one end of the alloy lead rod 430 is in contact with the bottom surface of the base 100 at this time). When the alloy lead rod 430 senses that the ambient temperature has increased, the alloy lead rod 430 expands slightly. The alloy lead rod 430 drives the temperature sensing rod 420, the connecting part 320, and the adjusting nut 410 to move downward. Then, the connecting part 320 drives the power contact 330 to press against the second passive contact 233, separating the first active contact 271 and the first passive contact 231. Similarly, when the adjusting nut 410 is rotated to value 5, the distance between the connecting part 320 and the adjusting nut 410 is at its maximum, and there is a certain gap between the adjusting nut 410 and the connecting part 320. At this time, when the alloy lead rod 430 senses a rise in ambient temperature, the alloy lead rod 430 needs to expand significantly. The alloy lead rod 430 drives the temperature sensing rod 420, the connecting part 320, and the adjusting nut 410 to move downwards. Then, the connecting part 320 drives the power contact 330 to press against the second passive contact 233, separating the first active contact 271 and the first passive contact 231. Therefore, by adjusting the tightness of the adjusting nut 410 and one end of the temperature sensing rod 420, the temperature sensing component 400 can cut off the current of the conductive component 200 at different ambient temperatures.

[0052] More specifically, the housing 800 has a reset hole 830 corresponding to the position of the first push rod 720. When the overheat protection component 700 is activated due to excessively high ambient temperature, the first push rod 720 can be pushed downward by inserting an external tool (such as tweezers) into the inner reset hole 830, thereby restoring the metal plate 710 to its original state and allowing the first electrical connector 240 and the second electrical connector 250 to regain power.

[0053] The working principle of the temperature controller in this embodiment will be explained in detail below:

[0054] On the one hand, the ambient temperature is sensed in real time by the temperature detection element 510, and the circuit board 520 connected to the temperature detection element 510 acquires the temperature value in real time. The external controller is connected to the connector set on the circuit board 520, and the real-time temperature value on the circuit board 520 is read by the external controller, thereby realizing real-time monitoring of the temperature of the electric heating element.

[0055] On the other hand, when the external temperature rises, the alloy lead screw 430 will expand. One end of the alloy lead screw 430 cannot move because it is in contact with the bottom surface of the base 100. At this time, the other end of the alloy lead screw 430 is not constrained, so it will drive the other end of the temperature sensing rod 420 to move downward. The end of the temperature sensing rod 420 is under tension, which will drive the adjusting nut 410 to move downward. The connecting part 320 will move downward at the same time, so that the power contact 330 moves downward and presses against the second passive contact 233, thereby separating the first passive contact 231 and the first active contact 271, and de-energizing the first electrical connector 240 and the second electrical connector 250.

[0056] On the other hand, when the ambient temperature exceeds the preset maximum temperature, the metal sheet 710 will undergo overheating deformation; the upward side of the metal sheet 710 deforms into a convex arc surface, and the downward side of the metal sheet 710 deforms into a concave arc surface; thus, through the reverse deformation of the metal sheet 710, an upward thrust is generated, causing the first push rod 720 to move upward, and the second push rod 730 connected to the first push rod 720 moves accordingly. The first protrusion 731 and the second protrusion 732 located at both ends of the second push rod 730 abut against the first moving contact 260 and the second moving contact 270 respectively, causing the first active contact 271 on the other end of the second moving contact 270 and the first passive contact 231 on the other end of the switch spring 230 to separate, thereby de-energizing the first electrical plug 240 and the second electrical plug 250, and realizing overheat protection for the electric heating element.

[0057] In summary, the temperature controller provided by this invention includes: a base; a conductive component and a switch pressing component disposed within the base; a temperature sensing component with one end connected to the switch pressing component and the other end extending out of the base; and a temperature detection component connected to the base and the temperature sensing component respectively; wherein, the temperature detection component includes a temperature sensor disposed within the temperature sensing component, a circuit board located within the base and connected to the temperature sensor, and a connector disposed on the circuit board. In this embodiment, the temperature controller performs real-time temperature detection through the temperature sensor, and then connects to an external controller via the connector to read the real-time temperature value obtained by the temperature sensor, thus achieving real-time temperature monitoring and greatly improving the reliability of the temperature controller.

[0058] Other embodiments of the invention will readily occur to those skilled in the art upon consideration of the specification and practice of the invention disclosed herein. This invention is intended to cover any variations, uses, or adaptations of the invention that follow the general principles of the invention and include common knowledge or customary techniques in the art not disclosed herein. The specification and examples are to be considered exemplary only, and the true scope and spirit of the invention are indicated by the claims.

Claims

1. A temperature controller, characterized in that, include: Base; Conductive components and switch pressing components are disposed within the base; A temperature-sensing component with one end connected to the switch pressing assembly and the other end extending out of the base; And a temperature sensing component connected to the base and the temperature sensing component respectively; The temperature sensing component includes a temperature detector disposed within the temperature sensing component, a circuit board located within the base and connected to the temperature detector, and a connector disposed on the circuit board. The conductive component includes: a first terminal block, a second terminal block, a switch spring, a first electrical connector, a second electrical connector, a first movable contact, and a second movable contact, all disposed within the base; one end of the first movable contact is connected to the first terminal block, and the other end is connected to the first electrical connector; one end of the second movable contact is connected to the second terminal block, and the other end is provided with a first active contact; one end of the switch spring is connected to the second electrical connector, and the other end is provided with a first passive contact for contacting the first active contact; The switch pressing assembly includes: a support portion disposed in the base, a connecting portion connected to the support portion, and a power contact disposed on the connecting portion and located at one end of the switch spring; wherein, the power contact is used to press against one end of the switch spring to separate the first active contact and the first passive contact, and a first through groove is provided on one end of the switch spring; The temperature controller also includes a limiting frame disposed on the base and movably connected to one end of the switch spring; the limiting frame includes a first base plate connected to the base, a first side plate and a second side plate respectively perpendicularly connected to the first base plate, the first side plate being located in the first through groove, the second side plate having an abutment groove, the abutment arm having an abutment joint, and the abutment joint abutting against the abutment groove. A second passive contact is provided on one end of the switch spring, and a first groove adapted to the shape of the second passive contact is provided on the power contact; The thermostat also includes an overheat protection component connected to the base; the overheat protection component includes a metal plate base connected to the bottom surface of the base, a metal plate disposed within the metal plate base, a first push rod disposed within the base and connected to the metal plate, and a second push rod perpendicularly connected to the push rod; wherein, a first protrusion is provided on one end of the second push rod and a second protrusion is provided on the other end; the first protrusion and the second protrusion are used to disconnect the conductive component; The base has a bottom connecting frame, and a first through hole is provided in the middle of the connecting frame to limit the movement track of the first push rod; the connecting part has a movement groove adapted to the shape of the first push rod; the first push rod passes through the movement groove and is located on the support part.

2. The temperature controller according to claim 1, characterized in that, The temperature sensing component includes: an adjustment nut, a temperature sensing rod, and an alloy lead screw; the adjustment nut is disposed on the switch pressing component, one end of the temperature sensing rod is connected to the adjustment nut, one end of the alloy lead screw abuts against the bottom surface of the base, and the other end of the temperature sensing rod is fixedly connected to the other end of the alloy lead screw.

3. The temperature controller according to claim 2, characterized in that, The temperature controller also includes a faceplate connected to the base and a nut cover that passes through the faceplate and is connected to the adjusting nut; wherein, the base is provided with multiple buckles around its perimeter, and the faceplate is provided with a lug for connecting to the buckles.

4. The temperature controller according to claim 3, characterized in that, The faceplate has a reset hole corresponding to the position of the first push rod.

Citation Information

Patent Citations

  • Inserted link type temperature controller

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  • Temperature controller

    CN211238622U

  • Temperature controller

    CN212967534U