Temperature measurement alarm structure for switching device

Abstract

A temperature measurement alarm structure for a switching device comprises a bottom frame and is characterized in that a signal output component is arranged on the bottom frame, a temperature sensing component is arranged at the position, corresponding to the signal output component, of a bus, and the temperature sensing component can be in contact with the signal output component when deformed. The temperature measurement alarm structure can measure the temperature rise of the switching device, the output signal is only related to the temperature change, other interferences are eliminated, the accuracy and the practicability of measurement are improved, and the device is simple and visual.

Description

Technical Field

[0001] This invention belongs to the field of circuit breaker technology, specifically relating to a temperature measurement and alarm structure for switching electrical appliances. Background Technology

[0002] Circuit breakers come in various structures depending on their performance requirements. Among them, the drawer-type frame circuit breaker is a commonly used structure in the low-voltage electrical industry, mainly consisting of the circuit breaker body and the drawer base. When the circuit breaker needs maintenance or other operation, the circuit breaker body must be pulled out of the drawer base, separating the circuit breaker body from the main circuit. To meet the requirements of operator safety, a safety door is installed between the circuit breaker body and the main circuit for isolation to prevent electric shock. Furthermore, the safety door must be able to be opened when the circuit breaker body needs to be connected to the main circuit. In existing switchgear (i.e., frame circuit breakers), the knife contacts on the drawer base, where the moving and stationary main contacts are in the same circuit, increase contact resistance. Over time, this can lead to temperature increases. Excessive temperature increases will reduce the performance of the switchgear and shorten its service life. Summary of the Invention

[0003] The purpose of this invention is to address the shortcomings of existing switches where prolonged use of the contact resistance on the drawer base leads to temperature increases, reducing the performance and shortening the lifespan of the switches. This invention provides a temperature measurement and alarm structure for switches that can measure the temperature rise of the switches. The output signal is only related to temperature changes, eliminating other interferences, improving measurement accuracy and practicality, and offering a simple and intuitive solution.

[0004] Technical solution

[0005] To achieve the above-mentioned technical objectives, the present invention provides a temperature measurement and alarm structure for switching electrical appliances, which includes a base frame. The base frame is characterized in that a signal output component is provided on it, and a temperature sensing component is provided on the busbar at a corresponding position to the signal output component. The temperature sensing component can contact the signal output component when it deforms.

[0006] In one embodiment, the base frame is provided with a dedicated slot for the signal output component, and the signal output component is installed in the dedicated slot for the signal output component.

[0007] In one embodiment, the signal output component includes a conductive element, a wire, and a terminal block, wherein the conductive element is electrically connected to the terminal block via the wire.

[0008] In one embodiment, the conductive element is a screw.

[0009] In one embodiment, the temperature sensing component is a heat transfer moving part.

[0010] In one embodiment, the heat transfer moving element is mounted in a heat element mounting slot on the busbar.

[0011] In one embodiment, the heat transfer moving element is a bimetallic strip.

[0012] Beneficial effects

[0013] This invention provides a temperature measurement alarm structure for switching electrical appliances, comprising a base frame. The base frame is characterized by having a signal output component, and a temperature sensing component positioned on a busbar corresponding to the signal output component. The temperature sensing component, upon deformation, can contact the signal output component. This temperature measurement alarm structure can measure the temperature rise of the switching electrical appliance, and the output signal is only related to temperature changes, eliminating other interferences, improving measurement accuracy and practicality, and offering a simple and intuitive design. Attached Figure Description

[0014] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present invention and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0015] Appendix Figure 1 This is a structural schematic diagram of an embodiment of the present invention;

[0016] Appendix Figure 2 This is a front view of an embodiment of the present invention;

[0017] Appendix Figure 3 This is a schematic diagram of the installation of the signal output component and the temperature sensing component in an embodiment of the present invention; Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0019] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on the other component or there may 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 present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this application's specification are for illustrative purposes only and do not represent the only possible implementation.

[0020] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0021] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature and the second feature are in indirect contact through an intermediate medium. Furthermore, "above," "over," and "on top" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0022] Unless otherwise defined, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in this application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. The term "and / or" as used in this application includes any and all combinations of one or more of the associated listed items.

[0023] Example

[0024] In existing switching devices, the contact resistance on the drawer base can lead to temperature increases over time, reducing the performance and shortening the lifespan of the switching device. To address this technical challenge, this embodiment provides a temperature alarm structure for switching devices, as shown in the attached diagram. Figure 1 and 2As shown, it includes a base frame 1, on which a dedicated slot 101 for signal output components is provided. The signal output component 2 is installed in the dedicated slot 101. A temperature sensing component 4 is provided on the busbar 3 at a corresponding position to the signal output component 2. The temperature sensing component 4 can come into contact with the signal output component 2 when it deforms.

[0025] In this embodiment, as shown in the appendix Figure 3 As shown, the signal output component 2 includes a conductive element 201, a wire 202, and a terminal block 203. The conductive element 201 is fixedly installed in the dedicated slot 101 of the signal output component and electrically connected to the terminal block 203 via the wire 202. Specifically, the conductive element 201 is a screw. The temperature sensing component 4 is a heat transfer moving component. The heat transfer moving component is installed in the heat element mounting slot 301 on the busbar 3. The heat transfer moving component is a bimetallic strip.

[0026] This embodiment provides a temperature measurement alarm structure for switching electrical appliances. The base frame is equipped with a temperature measurement functional slot, namely a dedicated slot 101 for signal output components. The signal output component 2 is fixed in the slot. When the bimetallic strip is heated and bent, the temperature sensing component 4 deforms and can contact the signal output component 2. The signal output component 2 is connected to the signal output device. When the temperature exceeds the selected value, an alarm signal is output.

[0027] Furthermore, the signal output component 2 includes a conductive element 201, a wire 202, and a terminal block 203. A temperature-sensing bimetallic strip is riveted to the busbar. When the bimetallic strip is heated and bent, it contacts the screw, completing the current loop. A wire can be connected from the terminal block to the signal output device. An alarm signal is output when the temperature exceeds the selected value. The entire temperature-sensing alarm structure can measure the temperature rise of the switching device. The output signal is only related to temperature changes, eliminating other interferences, improving the accuracy and practicality of the measurement, and is simple and intuitive.

[0028] The technical features of the above embodiments can be combined in any way. For the sake of brevity, 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, they should be considered to be within the scope of this specification.

[0029] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of this patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A temperature measuring alarm structure for a switching device, comprising a base frame (1), characterized in that: The base frame (1) is provided with a signal output component (2), and the busbar (3) is provided with a temperature sensing component (4) at the corresponding position of the signal output component (2). The temperature sensing component (4) can come into contact with the signal output component (2) when it deforms.

2. The temperature measurement alarm structure for switching electrical appliances as described in claim 1, characterized in that: The base frame (1) is provided with a dedicated slot (101) for signal output components, and the signal output component (2) is installed in the dedicated slot (101) for signal output components.

3. The temperature alarm structure for switching electrical appliances as described in claim 1, characterized in that: The signal output component (2) includes a conductive element (201), a wire (202), and a terminal block (203). The conductive element (201) is electrically connected to the terminal block (203) through the wire (202).

4. The temperature measurement alarm structure for switching electrical appliances as described in claim 3, characterized in that: The conductive element (201) is a screw.

5. The temperature measurement alarm structure for switching electrical appliances as described in claim 1, characterized in that: The temperature sensing component (4) is a heat transfer moving part.

6. The temperature alarm structure for a switching device as described in claim 5, characterized in that: The heat transfer moving part is installed in the heat element mounting groove (301) on the busbar (3).

7. The temperature alarm structure for a switching device as described in claim 5, characterized in that: The heat transfer moving part is a bimetallic strip.

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