Power supply structure for electronic tripping unit of circuit breaker

Abstract

A power supply structure for an electronic tripping unit of a circuit breaker is characterized in that the power supply structure comprises a circuit breaker mask (3) and a solar panel (1), the solar panel (1) is located in the front range of the circuit breaker mask (3), and the solar panel (1) supplies power to the electronic tripping unit (2) by absorbing solar energy and converting the solar energy into electric energy.

Description

Technical Field

[0001] The utility model belongs to the technical field of circuit breakers, and specifically relates to a power supply structure for an electronic trip unit of a circuit breaker. Background Art

[0002] An electronic intelligent circuit breaker generally consists of a circuit breaker body and an electronic trip unit. A data storage module is provided in the electronic trip unit, which can record data such as internal parameters and usage records of the circuit breaker. The electronic trip unit is a key component for realizing the control and protection functions of the circuit breaker. In the prior art, the power supply methods for the electronic trip unit of a circuit breaker mainly include power supply by a current transformer's quick saturation coil and / or external auxiliary power supply.

[0003] For example, an intelligent controller for a circuit breaker described in Chinese Patent CN202167424U belongs to the field of low-voltage electrical protection equipment. It includes a power conversion circuit, a signal acquisition circuit, a central processor circuit, a trip circuit, and a display circuit. The power conversion circuit draws power from a quick saturation power supply and / or an auxiliary power supply to supply power to each circuit. The signal acquisition circuit acquires current and voltage signals and sends the acquired signals to the central processor circuit. The central processor circuit is also connected to the trip circuit and the display circuit. The characteristics are that the display circuit includes a first display circuit and a second display circuit. The first display circuit can display the most basic current and voltage measurement values, three-section protection, ground fault protection, and other information of the intelligent controller. The second display circuit can display measurement data such as the 2 - 31 harmonic graphs of the intelligent controller, fault information such as fault recording, alarm, communication, maintenance, and controller operation instructions. The advantage of this intelligent controller is that more information of the intelligent controller can be viewed without an external module, which is convenient for users to use and maintain. Its power conversion circuit draws power from a quick saturation power supply and / or an auxiliary power supply. However, once the main circuit and the external auxiliary power supply are both not powered on in this traditional power supply mode, the display and query operations of the electronic trip unit cannot be performed. Summary of the Utility Model

[0004] The purpose of the utility model is to address the defect of the traditional power supply mode of the existing electronic trip unit that when both the main circuit and the external auxiliary power supply are not powered on, the display and query operations of the electronic trip unit cannot be performed. A power supply structure for the electronic trip unit of a circuit breaker is provided, which converts the absorbed solar energy into electrical energy to supply power to the electronic trip unit as a backup power supply when there is no other power supply for the electronic trip unit.

[0005] Technical Solution

[0006] In order to achieve the above technical objectives, the present utility model provides a power supply structure for an electronic trip unit of a circuit breaker, characterized in that: it includes a circuit breaker face mask and a solar panel, the solar panel is located within the front range of the circuit breaker face mask, and the solar panel supplies power to the electronic trip unit by absorbing solar energy and converting it into electrical energy.

[0007] In one embodiment, the electronic trip unit is installed in the circuit breaker face mask, the solar panel is installed on the panel of the electronic trip unit, and the solar panel supplies power to the electronic trip unit by absorbing solar energy and converting it into electrical energy.

[0008] In one embodiment, the solar panel stores the absorbed and converted electrical energy in an energy storage capacitor inside the electronic trip unit, and continues to supply power to the electronic trip unit under low light conditions.

[0009] In one embodiment, the solar panel is installed on the circuit breaker face mask, and the solar panel 1 supplies power to the electronic trip unit through internal wires connected to the electronic trip unit.

[0010] In one embodiment, the output interface of the electronic trip unit is connected to the circuit breaker intelligent accessory module and supplies auxiliary power to it.

[0011] In one embodiment, the circuit breaker intelligent accessory module includes a relay module, a remote intelligent input / output module, and a signal communication module.

[0012] Advantageous Effects

[0013] A power supply structure for an electronic trip unit of a circuit breaker provided by the present utility model is characterized in that: it includes a solar panel, the solar panel is installed on the panel of the electronic trip unit, and supplies power to the electronic trip unit by converting the absorbed solar energy into electrical energy, serving as a backup power source when there is no other power source for the electronic trip unit. Description of the Drawings

[0014] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following will briefly introduce the drawings required for use in the embodiments. It should be understood that the following drawings only show certain embodiments of the present invention, and therefore should not be regarded as limiting the scope. For those of ordinary skill in the art, without creative efforts, other relevant drawings can also be obtained based on these drawings.

[0015] Attached Figure 1 is a schematic diagram of the circuit breaker power supply structure in Embodiment 1 of the present utility model;

[0016] Attached Figure 2 is a schematic diagram of the installation of the electronic trip unit in Embodiment 1 of the present utility model;

[0017] Attached Figure 3 is a schematic structural diagram of the energy storage capacitor in the electronic trip unit in Embodiment 1 of the present utility model;

[0018] Attached Figure 4 is a schematic structural diagram of the solar panel installed on the circuit breaker face mask in Embodiment 2 of the present utility model; Detailed implementation manners

[0019] To make the objectives, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. Apparently, the described embodiments are some but not all of the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present application.

[0020] It should be noted that when a component is referred to as being "fixed to" or "disposed on" another component, it can be directly on the other component or there may also be an intermediate component. When a component is considered to be "connected" to another component, it can be directly connected to the other component or there may be an intermediate component at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used in the description of the present application are only for the purpose of illustration and do not represent the only implementation manners.

[0021] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one of such features. In the description of the present application, "a plurality of" means at least two, such as two, three, etc., unless otherwise specifically and clearly defined.

[0022] In the present application, unless otherwise clearly specified and limited, the first feature being "on" or "under" the second feature may be that the first feature is in direct contact with the second feature, or the first feature and the second feature are indirectly in contact through an intermediate medium. Moreover, the first feature being "above", "over" and "on top of" the second feature may be that the first feature is directly above or obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature being "under", "below" and "beneath" the second feature may be that the first feature is directly below or obliquely below the second feature, or only indicates that the horizontal height of the first feature is lower than that of the second feature.

[0023] Unless otherwise defined, all technical and scientific terms used in the specification of this application have the same meaning as commonly understood by those skilled in the technical field to which this application belongs. The terms used in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application. The term "and / or" used in the specification of this application includes any and all combinations of one or more of the related listed items.

[0024] Embodiment 1

[0025] In the traditional power supply mode of the existing electronic trip unit, when both the main circuit and the external auxiliary power supply are not powered on, the display and query operations of the electronic trip unit cannot be performed. To solve this problem, this embodiment provides a power supply structure for the electronic trip unit of a circuit breaker, which includes a circuit breaker face mask 3 and a solar panel 1. The solar panel 1 is within the front range of the circuit breaker face mask 3. The solar panel 1 absorbs solar energy and converts it into electrical energy to supply power to the electronic trip unit 2. Specifically, as shown in FIGS. Figure 1 , 2 and 3, the electronic trip unit 2 is installed in the circuit breaker face mask 3, and the solar panel 1 is installed on the panel 201 of the electronic trip unit 2. The solar panel 1 absorbs solar energy and converts it into electrical energy to supply power to the electronic trip unit 2.

[0026] Specifically: The energy storage capacitor 4 is connected to the solar panel 1, and stores the electrical energy absorbed and converted by the solar panel 1 to continue to supply power to the electronic trip unit 2 under low light conditions.

[0027] Embodiment 2

[0028] As shown in FIGS. Figure 4 , at the same time, the solar panel 1 can also be installed on the circuit breaker face mask 3. The solar panel 1 is connected to the electronic trip unit 2 through internal wires to supply power to the electronic trip unit 2. The solar panel 1 is connected to the circuit breaker intelligent accessory module and supplies auxiliary power to it. Specifically, the output interface 202 of the electronic trip unit 2 is connected to the circuit breaker intelligent accessory module and supplies auxiliary power to it. The circuit breaker intelligent accessory module includes a relay module, a remote intelligent input / output module, and a signal communication module.

[0029] The technical features of the above-described embodiments can be combined arbitrarily. For the sake of brevity of description, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, it should be considered as the scope described in this specification.

[0030] The above-described embodiments merely represent several implementation manners of the present application. The description thereof is relatively specific and detailed, but it should not be construed as a limitation on the patent scope of the present application. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present application, several modifications and improvements can still be made, and these all fall within the protection scope of the present application. Therefore, the protection scope of the patent of the present application shall be subject to the appended claims.

Claims

1. A power supply structure for an electronic trip unit of a circuit breaker, characterized in that: It includes a circuit breaker face mask (3) and a solar panel (1). The solar panel (1) is within the front range of the circuit breaker face mask (3). The solar panel (1) absorbs solar energy and converts it into electrical energy to power the electronic trip unit (2).

2. The power supply structure for the electronic trip unit of a circuit breaker according to claim 1, characterized in that: The electronic trip unit (2) is installed in the circuit breaker face mask (3), and the solar panel (1) is installed on the panel (201) of the electronic trip unit (2).

3. The power supply structure for the electronic trip unit of a circuit breaker according to claim 1, characterized in that: The solar panel (1) stores the absorbed and converted electrical energy in the energy storage capacitor (4) inside the electronic trip unit, and continues to power the electronic trip unit (2) under low light conditions.

4. The power supply structure for the electronic trip unit of a circuit breaker according to claim 1, characterized in that: The solar panel (1) is installed on the circuit breaker face mask (3), and the solar panel (1) is connected to the electronic trip unit (2) through internal wires to power the electronic trip unit (2).

5. The power supply structure for the electronic trip unit of a circuit breaker according to claim 1, characterized in that: The output interface (202) of the electronic trip unit (2) is connected to the circuit breaker intelligent accessory module and provides auxiliary power for it.

6. The power supply structure for the electronic trip unit of a circuit breaker according to claim 5, characterized in that: The circuit breaker intelligent accessory module includes a relay module, a remote intelligent input / output module, and a signal communication module.

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