A safe electrical protection device

Abstract

This utility model relates to the field of electrical safety equipment technology and discloses a safe electrical protection device, including a thermal relay main body. The thermal relay main body includes a thermal relay host body, within which three heating elements are arranged horizontally and equidistantly. The thermal relay host body is equipped with a temperature compensation mechanism. This utility model incorporates an intelligent overload protection mechanism in conjunction with the thermal relay main body, including an overload protector. This protector utilizes its built-in microprocessor and current sensor to monitor current changes in the circuit in real time. It can not only protect against prolonged overloads but also respond quickly to short-term overload peaks, promptly cutting off the power supply or taking other protective measures based on set parameters.

Description

Technical Field

[0001] This utility model relates to the field of electrical safety equipment technology, specifically a safe electrical protection device. Background Technology

[0002] Electrical safety protection devices are important equipment to ensure electrical safety, including overload protection devices, namely thermal relays. When the current in the circuit exceeds the rated current of the equipment or line, the overload protection device will activate due to the heat generated by the current. Thermal relays utilize the bending of a bimetallic strip under the heat generated by the overload current to push the mechanism to cut off the circuit.

[0003] Existing electrical safety protection devices still have the following problems when in use: inaccurate operating time. The operating time of thermal relays is greatly affected by ambient temperature. In high-temperature environments, they may operate prematurely, while in low-temperature environments, they may operate delayedly, resulting in inaccurate overload protection. In addition, general overload protection devices can only operate after the current exceeds a certain value for a period of time. They cannot respond in time to short-term overload peaks, which may cause potential damage to equipment. Utility Model Content

[0004] (a) Technical problems to be solved.

[0005] In view of the shortcomings of the existing technology, this utility model provides a safe electricity protection device, which solves the problems mentioned in the background technology.

[0006] (ii) Technical solution.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a safe electrical protection device, comprising a thermal relay main body, wherein the thermal relay main body includes a thermal relay host body, three heating elements are arranged horizontally and equidistantly within the thermal relay host body, the thermal relay host body is equipped with a temperature compensation mechanism, the temperature compensation mechanism includes two threaded slots symmetrically opened on the upper side of the rear end of the thermal relay host body, a built-in temperature sensor is installed in the threaded slots, an anti-interference transmitter is fixedly installed on the upper side of one end of the thermal relay host body, an external temperature sensor is provided at one end of the anti-interference transmitter, and a circuit compensator is provided on the upper side of the front end of the thermal relay host body, the circuit compensator being electrically connected to the internal control circuit of the thermal relay host body.

[0008] As a further embodiment of this utility model: an intelligent overload protection mechanism is provided at one end of the thermal relay main body. The intelligent overload protection mechanism includes an overload protector fixedly installed at the other end of the thermal relay main body. A microprocessor and a current sensor are provided at the bottom of the overload protector. The microprocessor and the current sensor are electrically connected to the internal control circuit of the thermal relay main body.

[0009] As a further improvement of this utility model: the main body of the thermal relay is fixedly connected to the upper rear end of the overload protector with a first fixing buckle, and the middle rear end of the overload protector is fixedly connected with a second fixing buckle.

[0010] As a further embodiment of this utility model: three first outgoing connectors are arranged horizontally and equidistantly on the front side of the bottom end of the thermal relay main body, three second outgoing connectors are arranged horizontally and equidistantly on the rear side of the bottom end of the thermal relay main body, and a set of incoming connectors are arranged at the middle and bottom of the front end of the overload protector, and each set of incoming connectors consists of two connectors arranged symmetrically.

[0011] As a further improvement of this utility model: the overload protector is provided with symmetrical current-stabilizing capacitors at its top, the overload protector is connected to the anti-interference transmitter through a second transmission line, and the two built-in temperature sensors are connected to the anti-interference transmitter through a first transmission line.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] 1. In this utility model, a temperature compensation mechanism is provided in conjunction with the thermal relay main body. The rear end of the thermal relay main body has two symmetrical threaded slots, in which a built-in temperature sensor is installed. At the same time, the anti-interference transmitter is equipped with an external temperature sensor. A circuit compensator is provided on the upper side of the front end of the thermal relay main body, which is electrically connected to the internal control circuit of the thermal relay main body. The operating characteristics are automatically adjusted by the circuit compensator based on the temperature data from the temperature sensor, thereby reducing the influence of ambient temperature on the operating time.

[0014] 2. In this utility model, an intelligent overload protection mechanism is set in conjunction with the main body of the thermal relay. It includes an overload protector that can use its built-in microprocessor and current sensor to monitor the current changes in the circuit in real time. It can not only protect against long-term overloads, but also respond quickly to short-term overload peaks and cut off the power supply or take other protective measures in a timely manner according to the set parameters. Attached Figure Description

[0015] Figure 1 The overall three-dimensional structure of this utility model Figure 1 ;

[0016] Figure 2 The overall three-dimensional structure of this utility model Figure 2 ;

[0017] Figure 3 The main structure of this utility model is three-dimensional. Figure 1 ;

[0018] Figure 4 The main structure of this utility model is three-dimensional. Figure 2 ;

[0019] Figure 5 This is a three-dimensional view of the temperature detection structure of this utility model.

[0020] In the diagram: 1. Thermal relay main body; 2. Intelligent overload protection mechanism; 3. Temperature compensation mechanism; 4. First fixing buckle; 5. Second fixing buckle; 11. Thermal relay main body; 12. First outgoing connector; 13. Second outgoing connector; 14. Heating element; 15. Threaded through slot; 21. Overload protector; 22. Microprocessor; 23. Current sensor; 24. Incoming connector; 31. Circuit compensator; 32. Current stabilizing capacitor; 33. Anti-interference transmitter; 34. External temperature sensor; 35. Internal temperature sensor; 36. First transmission line; 37. Second transmission line. Detailed Implementation

[0021] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of this utility model.

[0022] In the description of this utility model, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," "tail," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. In addition, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0023] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0024] Please see Figures 1-5In this embodiment of the utility model, a safe electrical protection device includes a thermal relay main body 1, which includes a thermal relay main body 11. Three heating elements 14 are horizontally and equidistantly arranged inside the thermal relay main body 11. The thermal relay main body 11 is equipped with a temperature compensation mechanism 3, which includes two symmetrically arranged threaded slots 15 on the upper rear side of the thermal relay main body 11. Built-in temperature sensors 35 are installed in the threaded slots 15. An anti-interference transmitter 33 is fixedly installed on the upper side of one end of the thermal relay main body 11. An external temperature sensor 34 is provided at one end of the anti-interference transmitter 33. An external temperature sensor 34 is located on the upper front side of the thermal relay main body 11. A circuit compensator 31 is provided, which is electrically connected to the internal control circuit of the thermal relay main body 11. The thermal relay main body 1 is equipped with a temperature compensation mechanism 3. The rear end of the thermal relay main body 1 has two symmetrical threaded slots 15, in which a built-in temperature sensor 35 is installed. At the same time, the anti-interference transmitter 33 is equipped with an external temperature sensor 34. The circuit compensator 31 is provided on the upper side of the front end of the thermal relay main body 1, which is electrically connected to the internal control circuit of the thermal relay main body 1. Based on the temperature data of the temperature sensor, the circuit compensator 31 automatically adjusts the operating characteristics to reduce the influence of ambient temperature on the operating time.

[0025] One end of the thermal relay main body 11 is provided with an intelligent overload protection mechanism 2. The intelligent overload protection mechanism 2 includes an overload protector 21 fixedly installed at the other end of the thermal relay main body 11. The bottom end of the overload protector 21 is provided with a microprocessor 22 and a current sensor 23. The microprocessor 22 and the current sensor 23 are electrically connected to the internal control circuit of the thermal relay main body 11. The overall intelligent overload protection mechanism 2 is set in conjunction with the thermal relay main body 1. It includes the overload protector 21 and can use its built-in microprocessor 22 and current sensor 23 to monitor the current change in the circuit in real time. It can not only protect against long-term overload, but also respond quickly to short-term overload peaks and cut off the power supply or take other protective measures in a timely manner according to the set parameters.

[0026] The thermal relay main body 11 is fixedly connected to the upper rear end of the overload protector 21 by a first fixing buckle 4, and the overload protector 21 is fixedly connected to the middle rear end by a second fixing buckle 5. The overall safe electrical protection device can be fixedly installed in the distribution box by the buckle on its rear side.

[0027] The thermal relay main body 11 has three first outgoing connectors 12 arranged horizontally and equidistantly on the front side of the bottom end, and three second outgoing connectors 13 arranged horizontally and equidistantly on the rear side of the bottom end. The overload protector 21 has a set of ingoing connectors 24 at the middle and bottom of the front end. Each set of ingoing connectors 24 consists of two connectors arranged symmetrically. The overall safe electrical protection device can be connected to the outgoing connectors through the ingoing connectors 24.

[0028] The overload protector 21 has a symmetrically arranged current-stabilizing capacitor 32 at its top. The overload protector 21 is connected to the anti-interference transmitter 33 through the second transmission line 37. Two built-in temperature sensors 35 are connected to the anti-interference transmitter 33 through the first transmission line 36, and can transmit temperature detection data to the overload protector 21 through the transmission line.

[0029] The working principle of this utility model is as follows: The overall safety electrical protection device can be fixedly installed in the distribution box by snapping on its rear side. The overall safety electrical protection device can be connected to the inlet connector 24 and the outlet connector. Since the overall thermal relay main body 1 is equipped with a temperature compensation mechanism 3, the rear end of the thermal relay main body 1 has two symmetrical threaded slots 15, and the threaded slots 15 are equipped with built-in temperature sensors 35. At the same time, the anti-interference transmitter 33 is equipped with an external temperature sensor 34. A circuit compensator 31 is set on the upper side of the front end of the thermal relay main body 1, which is electrically connected to the internal control circuit of the thermal relay main body 1. Through the temperature data of the temperature sensor, the circuit compensator 31 automatically adjusts the action characteristics to reduce the influence of ambient temperature on the action time.

[0030] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A safe electrical protection device, comprising a thermal relay main body (1), wherein the thermal relay main body (1) comprises a thermal relay main body (11), and three heating elements (14) are arranged horizontally and equidistantly inside the thermal relay main body (11). characterized in that The thermal relay main body (11) is provided with an intelligent overload protection mechanism (2) at one end, and the thermal relay main body (11) is provided with a temperature compensation mechanism (3). The temperature compensation mechanism (3) includes two threaded slots (15) symmetrically opened on the upper side of the rear end of the thermal relay main body (11). A built-in temperature sensor (35) is installed in the threaded slots (15). An anti-interference transmitter (33) is fixedly installed on the upper side of one end of the thermal relay main body (11). An external temperature sensor (34) is provided on one end of the anti-interference transmitter (33). A circuit compensator (31) is provided on the upper side of the front end of the thermal relay main body (11). The circuit compensator (31) is electrically connected to the internal control circuit of the thermal relay main body (11). The intelligent overload protection mechanism (2) includes an overload protector (21) fixedly installed at the other end of the thermal relay main body (11). The overload protector (21) is provided with a microprocessor (22) and a current sensor (23) at its bottom end. The microprocessor (22) and the current sensor (23) are electrically connected to the internal control circuit of the thermal relay main body (11).

2. A safety electrical protection device according to claim 1, characterized in that: The thermal relay main body (11) is fixedly connected to the upper rear end of the overload protector (21) by a first fixing buckle (4).

3. A safety electrical protection device according to claim 1, characterized in that: The overload protector (21) is fixedly connected to a second fixing buckle (5) at the middle of its rear end.

4. A safety electrical protection device according to claim 1, characterized in that: The thermal relay main body (11) has three first outgoing connectors (12) arranged horizontally and equidistantly on the front side of the bottom end, and three second outgoing connectors (13) arranged horizontally and equidistantly on the rear side of the bottom end.

5. The electrical safety protection device according to claim 1, characterized in that: The overload protector (21) has a set of inlet connectors (24) at the middle and bottom of its front end. Each set of inlet connectors (24) consists of two connectors arranged symmetrically.

6. A safety electrical protection device according to claim 1, characterized in that: The overload protector (21) has a symmetrically arranged current-stabilizing capacitor (32) at its top, and the overload protector (21) is connected to the anti-interference transmitter (33) through the second transmission line (37).

7. A safety electrical protection device according to claim 1, characterized in that: The two built-in temperature sensors (35) are connected to the anti-interference transmitter (33) via the first transmission line (36).

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