Overload switch with safety warning function

Abstract

The invention discloses an overload switch with a safety warning function, and relates to the technical field of overload switches, the overload switch comprises an overload switch body, the inner side of the overload switch body is provided with a first binding post, a second binding post and a bimetallic strip, and the top surface of the overload switch body is fixedly connected with an overload detector used for overload protection. The bottom of the overload detector is fixedly connected with a detection assembly, the top surface of the overload detector is fixedly connected with a buzzer, the bimetallic strip is heated and bent during overload, the first binding post and the second binding post are disconnected, and the overload detector cannot receive current connected in parallel with the second binding post through a wire at the moment; when the overload switch is used, the voltage detection chip in the overload detector detects sudden drop of voltage, then the miniature battery is matched with the triode and the capacitor to supply power to the buzzer, the buzzer makes a sound to warn a user, and the problems that an existing overload switch cannot warn the user in time, and production is delayed are solved.

Description

Technical Field

[0001] The present invention relates to the technical field of overload switches, and particularly to an overload switch with a safety warning function. Background Art

[0002] During the operation of power systems and various electrical equipment, the overload switch, as a key protection device, undertakes the important responsibility of monitoring the circuit current and preventing electrical faults caused by overload. When the current in the circuit exceeds the rated value, the overload switch can automatically cut off the circuit, thus effectively avoiding serious accidents such as equipment damage and fires.

[0003] Currently, most of the existing overload switches achieve their effects by using the following technologies;

[0004] Core detection technologies, including bimetallic strip detection, electromagnetic detection, and electronic detection;

[0005] Actuator technologies, including mechanical tripping mechanisms and electronic switch actuators;

[0006] Electronic switch actuators, including temperature compensation technology and self - recovery technology.

[0007] Currently, when the existing overload switches are actually used, it is found that there are at least the following technical problems;

[0008] Most of the existing overload switches do not have a safety warning structure. After overload protection, users cannot discover it in time, which may lead to equipment shutdown and inability to resume in time, delaying production. Summary of the Invention

[0009] Aiming at the deficiencies of the prior art, the present invention provides an overload switch with a safety warning function, which solves the problem that most of the existing overload switches do not have a safety warning structure, and users cannot discover it in time after overload protection, delaying production.

[0010] To achieve the above objectives, the present invention is realized through the following technical solutions:

[0011] An overload switch with a safety warning function includes an overload switch body. Inside the overload switch body, there are a first terminal, a second terminal, and a bimetallic strip. On the top surface of the overload switch body, there is an overload detector for detecting overload protection. The bottom of the overload detector is fixedly connected with a detection component, and the top surface of the overload detector is fixedly connected with a buzzer. The detection component includes two wires and five rubber plates.

[0012] Preferably: Both of the two wires are fixedly connected to the bottom surface of the overload detector.

[0013] Preferably: Both wires penetrate through the overload switch body, and one end of both wires far away from the overload detector is fixedly connected to the second terminal.

[0014] Preferably: All five rubber plates are fixedly connected to both wires.

[0015] Preferably: The surfaces of both wires are wrapped with an insulating layer, and the insulating layer is rubber.

[0016] Preferably: The inner side of the overload detector includes a micro battery for powering the buzzer.

[0017] Preferably: The inner side of the overload detector includes a voltage detection chip.

[0018] Preferably: The inner side of the overload detector includes a capacitor, a resistor and a triode.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] First, a current path is formed through the first terminal, the bimetal sheet and the second terminal. When overloaded, the bimetal sheet heats up and bends, and the first terminal is disconnected from the second terminal. At this time, the overload detector cannot receive the current shunted by the second terminal through the wire. The voltage detection chip inside the overload detector detects a sudden drop in voltage, and then the micro battery, in cooperation with the triode and the capacitor, powers the buzzer. The buzzer makes a sound to warn the user, solving the problem that the existing overload switch cannot warn the user in time and delaying production.

[0021] Second, in this application, the main structures are wires, rubber plates, overload detectors and buzzers. During production by manufacturers, it is convenient to adaptively transform different models of overload switches according to the above four structures, making this application have the effects of simple structure and convenient for revised production. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The above description is only an overview of the technical solution of the present invention. In order to be able to understand the technical means of the present invention more clearly and implement it according to the content of the specification, the following describes in detail with reference to the preferred embodiments of the present invention and the accompanying drawings.

[0023] Figure 1 is a three-dimensional structure diagram of the present invention;

[0024] Figure 2 is a structure diagram of the present invention in the state of removing the outer shell;

[0025] Figure 3 is a structure diagram of the detection component and the first terminal of the present invention;

[0026] Figure 4 is a structure diagram of the detection component and the overload detector of the present invention.

[0027] Legend: 1. Overload switch body; 2. First terminal; 3. Second terminal; 4. Bimetallic strip; 5. Overload detector; 6. Wire; 501. Buzzer; 601. Rubber plate. Detailed implementation

[0028] In the embodiment of the present application, by providing an overload switch with a safety warning function, the problem that most existing overload switches do not have a safety warning structure and users cannot discover it in time after overload protection, resulting in production delays, is effectively solved.

[0029] Embodiment

[0030] As shown in Figure 1 , Figure 2 , Figure 3 and Figure 4 , the technical solution in the embodiment of the present application effectively solves the technical problem that most existing overload switches do not have a safety warning structure and users cannot discover it in time after overload protection, resulting in production delays. The general idea is as follows:

[0031] In view of the problems existing in the prior art, the present invention provides an overload switch with a safety warning function, including an overload switch body 1. Inside the overload switch body 1, there are a first terminal 2, a second terminal 3 and a bimetallic strip 4. On the top surface of the overload switch body 1, there is an overload detector 5 for detecting overload protection fixedly connected. At the bottom of the overload detector 5, there is a detection component fixedly connected. On the top surface of the overload detector 5, there is a buzzer 501 fixedly connected. The detection component includes two wires 6 and five rubber plates 601.

[0032] Both of the two wires 6 are fixedly connected to the bottom surface of the overload detector 5.

[0033] Both of the two wires 6 penetrate through the overload switch body 1, and one end of each of the two wires 6 far from the overload detector 5 is fixedly connected to the second terminal 3.

[0034] All five rubber plates 601 are fixedly connected to the two wires 6.

[0035] The surfaces of the two wires 6 are both wrapped with an insulating layer, and the insulating layer is rubber.

[0036] Inside the overload detector 5, there is a micro battery for supplying power to the buzzer 501.

[0037] Inside the overload detector 5, there is a voltage detection chip.

[0038] Inside the overload detector 5, there are a capacitor, a resistor and a triode.

[0039] Overload switch body 1: Carries internal components and fixes the overload detector 5, providing structural support.

[0040] The first terminal 2: Participates in forming the current path and cooperates with the bimetallic strip 4 and the second terminal 3 to conduct the circuit.

[0041] The second terminal 3: Participates in forming the current path, cooperates with the bimetallic strip 4 and the first terminal 2 to conduct the circuit, and is connected to the overload detector 5 through the wire 6.

[0042] The bimetallic strip 4: Heats up and bends during overload, disconnects the connection between the first terminal 2 and the second terminal 3, and triggers overload protection.

[0043] The overload detector 5: Detects the overload state, and the internal components (voltage detection chip, micro battery, capacitor, resistor, triode) cooperate to achieve voltage detection and buzzer 501 power supply control.

[0044] The wire 6: Transmits current and transmits the current signal of the second terminal 3 to the overload detector 5.

[0045] The buzzer 501: Sounds to warn the user during overload.

[0046] The rubber plate 601: Fixes the wire 6 and provides insulation and mechanical protection.

[0047] Working principle:

[0048] In this application, the first terminal 2 cooperates with the bimetallic strip 4 and the second terminal 3 to form a current path. When overloaded, the bimetallic strip 4 heats up and bends, and the first terminal 2 is disconnected from the second terminal 3. At this time, the overload detector 5 cannot receive the current shunted by the second terminal 3 through the wire 6. The voltage detection chip inside the overload detector 5 detects a sudden drop in voltage, and then the micro battery cooperates with the triode and capacitor to supply power to the buzzer 501, and the buzzer 501 sounds to warn the user.

[0049] Finally, it should be noted that: Obviously, the above embodiments are only examples for clearly explaining the present invention, and are not limitations on the implementation manners. For those of ordinary skill in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to enumerate all the implementation manners here. And the obvious changes or modifications derived therefrom are still within the protection scope of the present invention.

Claims

1. An overload switch with a safety warning function, comprising an overload switch body (1), wherein a first terminal (2), a second terminal (3) and a bimetallic strip (4) are arranged inside the overload switch body (1), and it is characterized in that, The top surface of the overload switch body (1) is fixedly connected with an overload detector (5) for detecting overload protection. The bottom of the overload detector (5) is fixedly connected with a detection component, and the top surface of the overload detector (5) is fixedly connected with a buzzer (501). Among them, the detection component includes two wires (6) and five rubber plates (601).

2. The overload switch with a safety warning function as claimed in claim 1, wherein: Both of the two wires (6) are fixedly connected to the bottom surface of the overload detector (5).

3. The overload switch with a safety warning function according to claim 2, characterized in that: Both of the two wires (6) penetrate through the overload switch body (1), and one end of each of the two wires (6) far from the overload detector (5) is fixedly connected to the second terminal (3).

4. The overload switch with a safety warning function according to claim 3, characterized in that: All five rubber plates (601) are fixedly connected to the two wires (6).

5. The overload switch with a safety warning function according to claim 4, characterized in that: A layer of insulating layer is wrapped on the surfaces of both of the two wires (6).

6. The overload switch with a safety warning function according to claim 5, characterized in that: The inner side of the overload detector (5) includes a micro battery for powering the buzzer (501).

7. The overload switch with a safety warning function according to claim 6, characterized in that: The inner side of the overload detector (5) includes a voltage detection chip.

8. The overload switch with a safety warning function according to claim 7, characterized in that: The inner side of the overload detector (5) includes a capacitor, a resistor and a triode.

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