Automatic temperature regulation protection switch

Abstract

The utility model discloses an automatic temperature regulation protection switch, which relates to the technical field of electrical protection devices and comprises a switch device, a solid-state relay, a microprocessor and a temperature sensor, the switch device comprises a base, a button, a movable contact piece and a positioning cap, and the bottom of the base is fixedly connected with two static contact pieces. According to the automatic temperature regulation protection switch, the microprocessor, the temperature sensor, the probe and the solid-state relay are combined, and the composite temperature sensor with high sensitivity is adopted, so that tiny temperature change and abnormal trend can be timely and accurately detected; the microprocessor accurately judges the real-time temperature data and the temperature change trend through a complex algorithm, and the temperature response speed of the protection switch is improved, so that heat dissipation, temperature adjustment or power-off processing is carried out on equipment in time, the equipment is effectively prevented from running for a long time at high temperature, the equipment damage risk is greatly reduced, and the service life of the equipment is prolonged. And the safety and the reliability of the whole electrical system are improved.

Description

Technical Field

[0001] This utility model relates to the field of electrical protection device technology, and in particular to an automatic temperature control protection switch. Background Technology

[0002] Temperature is one of the key factors affecting the normal operation and service life of various electrical systems and equipment. When a circuit is overloaded, short-circuited, or the equipment is running for a long time, it often generates too much heat, causing the temperature to rise sharply. If not dealt with in time, high temperature may damage electrical components, causing malfunctions or even safety accidents.

[0003] For example, Chinese patent CN216084722U discloses a temperature protection switch, including: a housing, a guide frame, a cover, a first terminal, a second terminal, a spring, a push rod, a bimetallic strip, a stainless steel strip, and a reset rod. The guide frame is fixed inside the housing by the cover. A bimetallic strip is provided inside the cover. The push rod is inserted into the guide frame. A stainless steel strip is provided between the bimetallic strip and the top of the push rod. The bottom end of the push rod presses against the spring inside the housing. One end of the spring is connected to the first terminal, and the other end is provided with a moving contact. One end of the second terminal is provided with a stationary contact that cooperates with the moving contact. One end of the reset rod extends into the housing and is mounted on the housing and moves up and down. The reset rod is located directly below the spring.

[0004] Traditional switch protection devices, such as fuses, mainly cut off the circuit by melting the fusible element due to the heat generated by the current. However, they are not responsive enough to situations where the temperature rises slowly, and the fusible element needs to be replaced after it melts. Thermal relays utilize the principle of bimetallic strip deformation due to heat, but they are easily affected by ambient temperature and have limited response speed. Existing protection switches are not conducive to the safe use of protected equipment. To address the above problems, an automatic temperature-adjusting protection switch is proposed. Utility Model Content

[0005] The purpose of this utility model is to solve the problems existing in the prior art and to propose an automatic temperature control protection switch.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: an automatic temperature control protection switch, comprising a switching device, the switching device including a base, a button, a moving contact and a positioning cap, two stationary contacts fixedly connected to the bottom of the base, and further including a solid-state relay, a microprocessor and a temperature sensor, a housing fixedly installed on the outer side of the base, one end of the inner wall of the housing fixedly connected to both ends of the microprocessor, one end of the temperature sensor fixedly connected to the inner wall of the housing, and the other end of the temperature sensor fixedly connected to a probe, the outer wall of the probe being fitted with an encapsulation sleeve, the solid-state relay and the temperature sensor both being electrically connected to the microprocessor, a timer fixedly connected to the bottom of the microprocessor, and multiple heat sinks uniformly fixedly connected to one side of the base, with multiple heat dissipation holes uniformly opened through one end of each heat sink.

[0007] Preferably, a connecting pipe is fixedly installed on one side of the outer shell, and the inner wall of the connecting pipe is fixedly connected to the outer side of the encapsulation sleeve.

[0008] Preferably, the two ends of the button are rotatably mounted to the two ends of the base, the outer wall of the positioning cap is slidably connected to the inner wall of the bottom end of the button, and a spring is provided inside the positioning cap.

[0009] Preferably, the top end of one of the static contact members is movably connected to the bottom end of the dynamic contact member, and two baffles are symmetrically fixedly connected to the inner wall of the base.

[0010] Preferably, one end of each of the two static contacts extends through the housing to the outside, and a filter screen is fixedly connected to one side of the housing.

[0011] Preferably, one end of the plurality of heat sinks extends to the outside through the filter screen, and the other end of the plurality of heat sinks is wavy or serrated.

[0012] Preferably, a mounting plate is fixedly installed at one end of the housing, and the top end of the mounting plate is fixedly installed with the bottom end of the solid-state relay.

[0013] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0014] 1. In this utility model, the automatic temperature control protection switch combines a microprocessor, a temperature sensor, a probe, and a solid-state relay. It employs a high-sensitivity composite temperature sensor, which can detect minute temperature changes and abnormal trends in a timely and accurate manner. The microprocessor uses a complex algorithm to accurately judge real-time temperature data and temperature change trends, thereby improving the temperature response speed of the protection switch. This allows for timely heat dissipation and temperature adjustment or power-off processing of the equipment, effectively preventing the equipment from operating at high temperatures for extended periods, greatly reducing the risk of equipment damage, and improving the safety and reliability of the entire electrical system.

[0015] 2. In this utility model, the probe is encapsulated with a special thermally conductive ceramic material to ensure good contact with the protected equipment. It also has excellent insulation properties to prevent interference with the circuit, giving the protective switch strong anti-electromagnetic interference capability and environmental adaptability. It can work stably in harsh industrial environments. By adding multiple heat sinks, the heat inside the switching device can be dissipated to the outside. The heat sinks are designed in a wavy or sawtooth shape, and multiple heat dissipation holes are opened on the surface of the heat sinks to increase the heat dissipation area, improve heat exchange efficiency, and extend the service life of the switching device. Attached Figure Description

[0016] Figure 1 This utility model provides a schematic diagram of the installation status of an automatic temperature control protection switch;

[0017] Figure 2 This utility model provides a structural schematic diagram of an automatic temperature control protection switch;

[0018] Figure 3 This utility model provides a schematic diagram of the switching device of an automatic temperature control protection switch;

[0019] Figure 4 This utility model presents a front sectional view of a switching device for an automatic temperature control protection switch.

[0020] Legend: 1. Switching device; 2. Solid state relay; 11. Housing; 12. Filter screen; 13. Base; 14. Button; 15. Static contact; 16. Mounting plate; 17. Connecting pipe; 18. Heat sink; 19. Heat dissipation hole; 110. Baffle; 111. Moving contact; 112. Positioning cap; 113. Spring; 114. Microprocessor; 115. Temperature sensor; 116. Timer; 117. Probe; 118. Encapsulation sleeve. Detailed Implementation

[0021] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0022] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0023] Example 1: As Figure 1 - Figure 4As shown, this utility model provides an automatic temperature control protection switch, including a switching device 1. The switching device 1 includes a base 13, a button 14, a moving contact 111, and a positioning cap 112. Two stationary contacts 15 are fixedly connected to the bottom of the base 13. It also includes a solid-state relay 2, a microprocessor 114, and a temperature sensor 115. A housing 11 is fixedly installed on the outside of the base 13. One end of the inner wall of the housing 11 is fixedly connected to both ends of the microprocessor 114. One end of the temperature sensor 115 is fixedly connected to the inner wall of the housing 11, and the other end of the temperature sensor 115 is fixedly connected to a probe 117. An encapsulation sleeve 118 is fitted on the outer wall of the probe 117. The solid-state relay 2 and the temperature sensor 115 are both electrically connected to the microprocessor 114. The microprocessor 114 is fixedly connected to a timer 116 at its bottom. A connecting tube 17 is fixedly installed on one side of the housing 11. The inner wall of the connecting tube 17 is fixedly connected to the outer side of the encapsulation sleeve 118. The two ends of the button 14 are rotatably installed to the two ends of the base 13. The outer wall of the positioning cap 112 is slidably connected to the inner wall of the bottom of the button 14. A spring 113 is provided inside the positioning cap 112. The top end of one of the stationary contacts 15 is movably connected to the bottom end of the moving contact 111. Two baffles 110 are symmetrically fixedly connected to the inner wall of the base 13. One end of the two stationary contacts 15 extends through the housing 11 to the outside. A mounting plate 16 is fixedly installed on one end of the housing 11. The top end of the mounting plate 16 is fixedly installed to the bottom end of the solid-state relay 2.

[0024] The specific settings and functions of this embodiment are described in detail below: The automatic temperature control protection switch is composed of a microprocessor 114, a temperature sensor 115, a probe 117 and a solid-state relay 2. It adopts a high-sensitivity composite temperature sensor 115, which integrates negative temperature coefficient (NTC) and positive temperature coefficient (PTC) thermistor elements. This composite structure can more comprehensively sense temperature changes and accurately capture both temperature increases and decreases. It can monitor temperature changes within the protected equipment in real time, and can detect minute temperature changes and abnormal trends in a timely and accurate manner. This effectively prevents the equipment from operating at high temperatures for a long time, greatly reduces the risk of equipment damage, and improves the safety and reliability of the entire electrical system.

[0025] The probe 117 is encapsulated in a special thermally conductive ceramic material encapsulation sleeve 118 to ensure good contact with the protected equipment. It also has excellent insulation properties to prevent interference with the circuit, giving the protective switch strong anti-electromagnetic interference capability and environmental adaptability, and enabling it to work stably in harsh industrial environments.

[0026] Example 2: Figure 2 and Figure 3As shown, a plurality of heat sinks 18 are evenly fixedly connected to one side of the base 13, and a plurality of heat dissipation holes 19 are evenly opened through one end of the heat sink 18. A filter screen 12 is fixedly connected to one side of the outer shell 11. One end of the plurality of heat sinks 18 extends to the outside through the filter screen 12, and the other end of the plurality of heat sinks 18 is wavy or serrated.

[0027] The overall effect of this embodiment is that by adding multiple heat sinks 18, the heat inside the switching device 1 can be dissipated to the outside. The heat sinks 18 are designed to be wavy or sawtooth in shape, and multiple heat dissipation holes 19 are opened on the surface of the heat sinks 18, which increases the heat dissipation area, improves the heat exchange efficiency, and extends the service life of the switching device 1.

[0028] The usage and working principle of this device: The protective switch is mainly composed of a switch device 1 and a solid-state relay 2. The protective switch is installed on the outside of the protective equipment through the mounting plate 16, and the microprocessor 114 is electrically connected to the solid-state relay 2. The microprocessor 114 is also electrically connected to the temperature control and heat dissipation device on the outside of the protective equipment. When the device is in use, the switch device 1, the solid-state relay 2 and the protective equipment are connected through a connecting wire, and the connecting wire is connected to the power supply.

[0029] In normal use, pressing button 14 rotates the moving contact 111, energizing the switch 1. The probe 117 of temperature sensor 115 extends into the protection device, allowing real-time temperature monitoring. The resistance change signal output by temperature sensor 115 is converted into a digital signal by a high-precision analog-to-digital converter (ADC). This digital signal is then analyzed by microprocessor 114, which stores preset temperature and temperature change rate thresholds. Microprocessor 114 uses complex algorithms to accurately judge real-time temperature data and temperature change trends. Based on the analysis results of microprocessor 114, if the temperature inside the protection device is within the normal range, the circuit remains conductive. When the temperature rises abnormally, microprocessor 114 outputs a control signal to drive a temperature-regulating heat dissipation device to regulate the temperature of the protection device. Simultaneously, timer 116 starts timing for abnormal temperature events, further regulating the temperature of the protection device. When the temperature drops to a safe level... The circuit remains on throughout the entire range or until the set time for temperature anomalies is reached. When the temperature change rate becomes abnormal or the set time for temperature anomalies is reached, the microprocessor 114 outputs a control signal to drive the solid-state relay 2 to operate. The solid-state relay 2 has advantages such as being contactless, having a fast switching speed, and a long lifespan. It can quickly cut off the circuit, avoiding the response delay caused by contact arcing and other problems of traditional relays. This automatic temperature control protection switch combines the microprocessor 114, temperature sensor 115, probe 117, and solid-state relay 2. It uses a high-sensitivity composite temperature sensor 115, which integrates negative temperature coefficient (NTC) and positive temperature coefficient (PTC) thermistors. This composite structure can more comprehensively sense temperature changes, accurately capturing both temperature increases and decreases. It can monitor temperature changes within the protected equipment in real time, promptly and accurately detecting minute temperature changes and abnormal trends. This effectively prevents equipment from operating at high temperatures for extended periods, greatly reducing the risk of equipment damage and improving the safety and reliability of the entire electrical system.

[0030] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the present utility model.

Claims

1. An automatic temperature control protection switch, comprising a switching device (1), the switching device (1) comprising a base (13), a button (14), a moving contact (111), and a positioning cap (112), wherein two stationary contacts (15) are fixedly connected to the bottom of the base (13), characterized in that: It also includes a solid-state relay (2), a microprocessor (114) and a temperature sensor (115). A housing (11) is fixedly installed on the outside of the base (13). One end of the inner wall of the housing (11) is fixedly connected to both ends of the microprocessor (114). One end of the temperature sensor (115) is fixedly connected to the inner wall of the housing (11), and the other end of the temperature sensor (115) is fixedly connected to a probe (117). The outer wall of the probe (117) is fitted with an encapsulation sleeve (118). The solid-state relay (2) and the temperature sensor (115) are both electrically connected to the microprocessor (114). A timer (116) is fixedly connected to the bottom of the microprocessor (114). A plurality of heat sinks (18) are evenly fixedly connected to one side of the base (13), and a plurality of heat dissipation holes (19) are evenly opened through one end of the heat sink (18).

2. The automatic temperature control protection switch according to claim 1, characterized in that: A connecting pipe (17) is fixedly installed on one side of the outer shell (11), and the inner wall of the connecting pipe (17) is fixedly connected to the outer side of the encapsulation sleeve (118).

3. The automatic temperature control protection switch according to claim 1, characterized in that: The two ends of the button (14) are rotatably mounted to the two ends of the base (13), the outer wall of the positioning cap (112) is slidably connected to the inner wall of the bottom end of the button (14), and a spring (113) is provided inside the positioning cap (112).

4. The automatic temperature control protection switch according to claim 1, characterized in that: The top end of one of the static contact members (15) is movably connected to the bottom end of the dynamic contact member (111), and two baffles (110) are symmetrically fixedly connected to the inner wall of the base (13).

5. The automatic temperature control protection switch according to claim 1, characterized in that: One end of each of the two static contact members (15) extends through the housing (11) to the outside, and a filter screen (12) is fixedly connected to one side of the housing (11).

6. The automatic temperature control protection switch according to claim 5, characterized in that: One end of each of the multiple heat sinks (18) extends outward through the filter screen (12), and the other end of each of the multiple heat sinks (18) is wavy or serrated.

7. The automatic temperature control protection switch according to claim 1, characterized in that: A mounting plate (16) is fixedly installed at one end of the housing (11), and the top end of the mounting plate (16) is fixedly installed at the bottom end of the solid-state relay (2).

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