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] The utility model belongs to the technical field of circuit breakers, and specifically relates to a temperature measurement and alarm structure for switch electrical appliances. Background Art

[0002] Circuit breakers have various structures according to their performance requirements. Among them, the draw-out frame circuit breaker is a relatively common structure in the low-voltage electrical industry, which mainly consists of a circuit breaker body and a draw-out seat. When the circuit breaker needs to be repaired or other operations are required, the circuit breaker body needs to be rocked out from the draw-out seat, and at this time, the circuit breaker body is separated from the main circuit. To meet the requirements of safe use by operators, a safety door for isolation is provided between the circuit breaker body and the main circuit to prevent electric shock. And when the circuit breaker body and the main circuit need to be connected, the safety door should be able to open. In the existing switch electrical appliances (i.e., frame circuit breakers), the plug-in contacts on the draw-out seat of the moving and static main contacts in the same circuit increase the contact resistance. After long-term use, the temperature will rise. Once the temperature rises too high, it will reduce the performance of the switch electrical appliances and shorten the actual service life of the switch electrical appliances. Content of the Utility Model

[0003] The purpose of the utility model is to solve the defect that the contact resistance on the draw-out seat in the existing switch electrical appliances will cause the temperature to rise after long-term use, which will reduce the performance of the switch electrical appliances and shorten the actual service life of the switch electrical appliances. A temperature measurement and alarm structure for switch electrical appliances is provided, which can measure the temperature rise of the switch electrical appliances, and the output signal is only related to the temperature change, excluding other interferences, improving the accuracy and practicability of the measurement, and being simple and intuitive.

[0004] Technical Solution

[0005] To achieve the above technical purpose, the utility model provides a temperature measurement and alarm structure for switch electrical appliances, which includes a chassis. It is characterized in that: a signal output component is arranged on the chassis, and a temperature sensing component is arranged at a corresponding position on the busbar. When the temperature sensing component deforms, it can contact the signal output component.

[0006] In one of the embodiments, a special slot for the signal output component is arranged on the chassis, and the signal output component is installed in the special slot for the signal output component.

[0007] In one of the embodiments, the signal output component includes a conductive part, a wire and a terminal. The conductive part is electrically connected to the terminal through the wire.

[0008] In one of the embodiments, the conductive part is a screw.

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

[0010] In one of the embodiments, the heat transfer moving part is installed in the heat element installation groove on the bus bar.

[0011] In one of the embodiments, the heat transfer moving part is a bimetallic strip.

[0012] Beneficial effects

[0013] The utility model provides a temperature measurement and alarm structure for a switching electrical appliance, which includes a chassis. It is characterized in that: a signal output component is arranged on the chassis, and a temperature sensing component is arranged at a position corresponding to the signal output component on the bus bar. When the temperature sensing component deforms, it can contact the signal output component. The temperature measurement and alarm structure can measure the temperature rise of the switching electrical appliance, and the output signal is only related to the temperature change, excluding other interferences, improving the measurement accuracy and practicability, and being simple and intuitive. Description of the drawings

[0014] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings required to be used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present utility model, and therefore should not be regarded as limiting the scope. For those of ordinary skill in the art, other related drawings can be obtained based on these drawings without creative efforts.

[0015] Attached Figure 1 is a schematic structural diagram of an embodiment of the present utility model;

[0016] Attached Figure 2 is a front view of an embodiment of the present utility model;

[0017] Attached Figure 3 is a schematic installation diagram of the signal output component and the temperature sensing component in an embodiment of the present utility model; Detailed implementation manners

[0018] 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 drawings in the embodiments of the present application. Obviously, 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 fall within the scope of protection of the present application.

[0019] It should be noted that when a component is referred to as "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 specification of this application are only for the purpose of illustration and do not represent the only implementation manner.

[0020] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood 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 these features. In the description of this application, the meaning of "a plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0021] In this application, unless otherwise clearly specified and limited, the first feature may be in direct contact with the second feature "on" or "under" the second feature, or the first feature and the second feature may be in indirect contact through an intermediate medium. Moreover, the first feature being "above", "over" and "on top of" the second feature may mean 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 "below", "beneath" and "underneath" the second feature may mean 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 less than that of the second feature.

[0022] 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 implementation manners 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.

[0023] Embodiment

[0024] In the existing switchgear, the contact resistance on the drawer seat will cause the temperature to rise after long-term use, which will reduce the performance of the switchgear and shorten the service life of the switchgear. To solve this technical problem, this embodiment provides a temperature measurement and alarm structure for switchgear, as shown in the appendix Figure 1 and 2As shown in the figure, it includes a chassis 1, on which a dedicated slot 101 for signal output components is provided. A signal output component 2 is installed in the dedicated slot 101 for signal output components. A temperature sensing component 4 is provided at a corresponding position on the busbar 3. When the temperature sensing component 4 deforms, it can contact the signal output component 2.

[0025] In this embodiment, as shown in the attached Figure 3 figure, the signal output component 2 includes a conductive member 201, a wire 202, and a terminal 203. The conductive member 201 is fixedly installed in the dedicated slot 101 for signal output components and is electrically connected to the terminal 203 through the wire 202. Specifically, the conductive member 201 is a screw. The temperature sensing component 4 is a heat transfer moving member. The heat transfer moving member is installed in a heat element installation slot 301 on the busbar 3. The heat transfer moving member is a bimetallic strip.

[0026] A temperature measurement and alarm structure for a switching electrical appliance provided in this embodiment adds a functional slot for temperature measurement, namely, a dedicated slot 101 for signal output components, in the chassis. 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 a signal output device, and an alarm signal is output when the temperature exceeds the selected value.

[0027] Furthermore, the signal output component 2 includes a conductive member 201, a wire 202, and a terminal 203. A temperature measurement bimetallic strip is riveted on the busbar. When the bimetallic strip is heated and bent, the bimetallic strip contacts the screw, and the current loop is turned on. A wire can be led out from the terminal to the signal output device, and an alarm signal is output when the temperature exceeds the selected value. The entire temperature measurement and alarm structure can measure the temperature rise of the switching electrical appliance. The output signal is only related to the temperature change, excluding other interferences, improving the measurement accuracy and practicability, and being simple and intuitive.

[0028] 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-described 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.

[0029] The above-described embodiments only represent several implementation manners of the present application. The description 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 deformations and improvements can still be made, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent of the present application should be subject to the appended claims.

Claims

1. A temperature measurement and alarm structure for a switching electrical appliance, which comprises a chassis (1), and is characterized in that: A signal output component (2) is provided on the chassis (1), a temperature sensing component (4) is provided at a position corresponding to the signal output component (2) on the bus bar (3), and when the temperature sensing component (4) deforms, it can contact the signal output component (2).

2. The temperature measurement and alarm structure for a switching electrical appliance according to claim 1, characterized in that: A dedicated slot (101) for the signal output component is provided on the chassis (1), and the signal output component (2) is installed in the dedicated slot (101) for the signal output component.

3. The temperature measurement and alarm structure for a switchgear according to claim 1, characterized in that: The signal output component (2) includes a conductive member (201), a wire (202) and a terminal (203), and the conductive member (201) is electrically connected to the terminal (203) through the wire (202).

4. The temperature measurement and alarm structure for a switching electrical appliance according to claim 3, characterized in that: The conductive member (201) is a screw.

5. The temperature measuring and alarm structure for a switching electrical appliance according to claim 1, characterized in that: The temperature sensing component (4) is a heat transfer moving member.

6. The temperature measuring and alarming structure for a switching electrical appliance according to claim 5, characterized in that: The heat transfer moving member is installed in a heat element installation slot (301) on the bus bar (3).

7. The temperature measurement and alarm structure for a switching electrical appliance according to claim 5, characterized in that: The heat transfer moving member is a bimetallic strip.

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