Overtemperature protector

Abstract

An overtemperature protector relates to the technical field of temperature control and comprises a temperature sensing cylinder, a temperature control switch, a power switch, a power supply, a buzzer, a warning lamp, a fixing plate and a cover plate, the bottom of the temperature sensing cylinder is a temperature sensing surface, the top end of the temperature sensing cylinder is open, and the temperature control switch, the power switch, the power supply, the buzzer and the warning lamp are arranged in the temperature sensing cylinder. The temperature sensing surface of the temperature control switch is tightly attached to the bottom surface of the bottom of the temperature sensing cylinder, the power switch, the power supply, the buzzer and the warning lamp are arranged on the side face of the temperature control switch, the fixing plate is located on the temperature control switch, the power switch, the power supply, the buzzer and the warning lamp, the cover plate covers an opening in the top end of the temperature sensing cylinder in a sealing mode, and a switch contact of the power switch sequentially penetrates out of the fixing plate and the cover plate. Warning light of the warning lamp penetrates out of the fixing plate and the cover plate. Compared with the prior art, the temperature sensor has the advantages of convenience in use and easiness in ensuring that the temperature sensing surface is continuously and stably clung to a detected object.

Description

Technical Field

[0001] This utility model relates to the field of temperature control technology, and in particular to an over-temperature protector. Background Technology

[0002] Over-temperature alarm systems are needed in fields such as home, electronics, machinery, and medical to alert users to promptly address over-temperature situations and prevent accidents. Existing over-temperature alarm systems typically include a temperature control switch, a power supply, and audible and visual warnings. In use, the temperature-sensing surface of the temperature control switch is placed firmly against the object being monitored. When an over-temperature situation occurs, the temperature control switch activates, and the audible and visual warnings sound. However, this type of over-temperature alarm system requires multiple components such as the power supply and audible / visual warnings to be connected in series, making it inconvenient to use. It is also susceptible to interference from these components, preventing the temperature-sensing surface of the temperature control switch from remaining firmly against the object being monitored, thus affecting the proper functioning of the over-temperature protection. Summary of the Invention

[0003] The purpose of this invention is to provide an over-temperature protector that can overcome one or more of the above-mentioned disadvantages, is easy to use, and can easily ensure that the temperature sensing surface is continuously and stably in close contact with the object being tested.

[0004] This utility model is implemented as follows: it includes a temperature sensing cylinder, a temperature control switch, a power switch, a power supply, a buzzer, a warning light, a fixing plate, and a cover plate. The bottom of the temperature sensing cylinder is the temperature sensing surface, and the top of the temperature sensing cylinder is an open opening. The temperature control switch, power switch, power supply, buzzer, and warning light are disposed inside the temperature sensing cylinder. The temperature sensing surface of the temperature control switch is in close contact with the bottom surface of the temperature sensing cylinder. The power switch, power supply, buzzer, and warning light are disposed on the side of the temperature control switch. The fixing plate is located above the temperature control switch, power switch, power supply, buzzer, and warning light. The cover plate seals the open opening at the top of the temperature sensing cylinder. The switch contacts of the power switch pass through the fixing plate and the cover plate in sequence. The warning light of the warning light shines through the fixing plate and the cover plate. The power supply provides power to the buzzer and warning light through the temperature control switch and the power switch.

[0005] In use, place the bottom of the temperature sensing cylinder of the over-temperature protector of this invention close to the object being tested, press the power switch, and the warning light will illuminate. When the temperature exceeds the set temperature, the temperature is transmitted through the sensing surface at the bottom of the temperature sensing cylinder to the sensing surface of the temperature control switch. The temperature control switch will activate, causing the buzzer to sound an alarm. At the same time, the warning light can be controlled to flash as a warning.

[0006] Because it uses a temperature sensing cylinder, and the temperature control switch, power switch, power supply, buzzer, and warning light are all located inside the temperature sensing cylinder, the product does not have the interference of multiple external series devices, ensuring that the temperature sensing surface is continuously and stably in close contact with the object being tested, and it is also easy to use.

[0007] Preferably, the temperature control switch uses a thermostat with a thermistor bimetallic strip.

[0008] Compared with existing technologies, this invention has the advantages of being easy to use and ensuring that the temperature sensing surface is in constant and stable contact with the object being tested. Attached Figure Description

[0009] Figure 1 This is a schematic diagram of the over-temperature protector of this utility model;

[0010] Figure 2 for Figure 1 Exploded view;

[0011] Figure 3 This is the circuit control diagram for Example 1;

[0012] Figure 4 This is the circuit control diagram for Example 2;

[0013] Figure 5 This is the circuit control diagram for Example 3.

[0014] Figure numbers: 1-Temperature sensing cylinder; 101-Bottom; 102-Top; 2-Temperature control switch; 201-Temperature sensing surface; 3-Power switch; 301-Switch contact; 4-Power supply; 5-Buzzer; 6-Warning light; 7-Fixing plate; 8-Cover plate; 9-Controller. Detailed Implementation

[0015] The over-temperature protector of this utility model will now be described in further detail with reference to the accompanying drawings and embodiments:

[0016] like Figure 1 , 2 As shown, the over-temperature protector of this utility model is implemented as follows: it includes a temperature sensing cylinder 1, a temperature control switch 2, a power switch 3, a power supply 4, a buzzer 5, a warning light 6, a fixing plate 7, and a cover plate 8. The temperature sensing cylinder 1 is a circular cylinder made of aluminum alloy. The bottom 101 of the temperature sensing cylinder 1 is the temperature sensing surface, and the top 102 of the temperature sensing cylinder 1 is an open opening. The temperature control switch 2, the power switch 3, the power supply 4, the buzzer 5, and the warning light 6 are disposed inside the temperature sensing cylinder 1. The power supply 4 is a control circuit with a battery and power supply. The temperature control switch 2 has its temperature sensing surface 201 in close contact with the bottom surface of the temperature sensing cylinder 1 bottom 101. The power switch 3, power supply 4, buzzer 5, and warning light 6 are located on the side of the temperature control switch 2. The fixing plate 7 is located on top of the temperature control switch 2, power switch 3, power supply 4, buzzer 5, and warning light 6. The cover plate 8 covers the opening of the top 102 of the temperature sensing cylinder 1. The switch contact 301 of the power switch 3 passes through the fixing plate 7 and the cover plate 8 in sequence. The warning light of the warning light 6 shines through the fixing plate 7 and the cover plate 8.

[0017] like Figure 3As shown, the buzzer 5 and the warning light 6 are connected in parallel, and then connected in series with the temperature control switch 2 and the power switch 3, and finally connected to the power supply 4.

[0018] Or, such as Figure 4 As shown, the buzzer 5 is connected in series with the temperature control switch 2, then in parallel with the warning light 6, and then in series with the power switch 3 and connected to the power supply 4.

[0019] Or, such as Figure 5 As shown, the power supply supplies power to the buzzer 5 and the warning light 6 through the controller 9 (such as including an MCU and a switching circuit controlled by the MCU, the MCU controls the opening and closing of the switching circuit, and the switching circuit controls the buzzer 5 and the warning light 6 to work). The temperature control switch 2 and the power switch 3 are connected to the electrical signal input terminal of the controller 9.

[0020] In use, the bottom 101 of the temperature sensing cylinder 1 of the over-temperature protector of this utility model is placed tightly against the object being tested. When the power switch 3 is pressed and the circuit of embodiment 4 is used, the warning light 6 lights up, indicating that the device is in working condition. When the temperature exceeds the set temperature, the temperature is transmitted through the sensing surface of the bottom 101 of the temperature sensing cylinder 1 to the sensing surface 201 of the temperature control switch 2. The temperature control switch 2 is activated, and the power supply 4 supplies power to the buzzer 5, causing the buzzer 5 to start the alarm. If the circuit of embodiment 3 is used, the warning light 6 changes from not lighting up to flashing warning.

[0021] When the circuit of Embodiment 5 is used, the power switch 3 is closed, and a control signal is sent to the controller 9. The warning light 6 is constantly lit, and the display device is in working state. When the temperature exceeds the set temperature, the temperature is transmitted through the temperature sensing surface of the bottom 101 of the temperature sensing cylinder 1 to the temperature sensing surface 201 of the temperature control switch 2. The temperature control switch 2 is activated and sends a control signal to the controller 9. The controller 9 controls the buzzer 5 to start the alarm. At the same time, it controls the warning light 6 to change from constantly lit to flashing warning.

Claims

1. An over-temperature protector, characterized by The temperature sensing cylinder, temperature control switch, power switch, power supply, buzzer, warning light, fixing plate and cover plate are included, the bottom of the temperature sensing cylinder is a temperature sensing surface, the top end of the temperature sensing cylinder is an open end, the temperature control switch, power switch, power supply, buzzer and warning light are arranged in the temperature sensing cylinder, the temperature sensing surface of the temperature control switch is close to the bottom surface of the bottom of the temperature sensing cylinder, the power switch, power supply, buzzer and warning light are arranged on the side of the temperature control switch, the fixing plate is located above the temperature control switch, power switch, power supply, buzzer and warning light, the cover plate covers the open end of the top end of the temperature sensing cylinder, the switch contact of the power switch penetrates through the fixing plate and cover plate in sequence, and the warning light warning light transmits through the fixing plate and cover plate.

2. The over-temperature protector of claim 1, wherein, The buzzer and warning light are connected in parallel, then connected in series with the temperature control switch and power switch, and then connected to the power supply; or the buzzer is connected in series with the temperature control switch, then connected in parallel with the warning light, then connected in series with the power switch, and then connected to the power supply; or the power supply supplies power to the buzzer and warning light through a controller, and the temperature control switch and power switch are connected to the electrical signal input end of the controller.

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