Current-visualized direct-current arc-discharge-preventing wall row

Abstract

The utility model relates to the technical field of direct-current power distribution network electrical equipment, in particular to a current-visualized direct-current anti-arcing wall row, which comprises an anti-arcing wall row body, positive and negative jacks, a connecting base, a first movable plate and a second movable plate, the arc discharge prevention wall row body and the connecting base form a containing box body structure, the first movable plate and the second movable plate are located in a containing box body, and the first movable plate is located below the arc discharge prevention wall row body; a first moving hole and a second moving hole are formed in the first movable plate, each of the first moving hole and the second moving hole is provided with an inclined surface and a vertical surface, the inclined surface of the first moving hole is located below the first insertion hole, and the inclined surface of the second moving hole is located below the second insertion hole; a second movable plate is arranged close to the lower part of the first movable plate, and the second movable plate is positioned above the elastic conductive seat; according to the invention, the arc discharge phenomenon can be reduced, the passing safety current can be displayed, and an alarm is given to the overload current.

Description

Technical Field

[0001] This utility model relates to the field of DC power distribution network electrical equipment technology, and more specifically, it relates to a DC anti-arc wall panel with current visualization. Background Technology

[0002] The large-scale construction of new energy power generation has led to the wider application of DC power grids. To reduce losses during the DC-to-AC conversion, DC distribution networks are also continuously developing. Therefore, the market for arc-resistant wall panels used in DC distribution networks is vast. Unlike AC wall panels, DC arc-resistant wall panels require more advanced features to ensure the safe and stable operation of DC equipment.

[0003] Socket arcing refers to the phenomenon where, when a plug is inserted into or removed from a socket, poor contact between the plug and socket or excessive current causes the air to be ionized, resulting in an electric arc. This can easily burn out electrical components, reduce the lifespan of the socket, and even cause a fire.

[0004] Prior art document 1 (CN217522300U) discloses an anti-arc-stretch DC wall-mounted circuit breaker and its connection equipment, belonging to the field of electrical connection safety technology. The anti-arc-stretch DC wall-mounted circuit breaker includes a housing, an elastic conductive base plate disposed within the housing, and an insulation resistor installed within the housing and movable relative to the elastic conductive base plate. When the elastic conductive base plate is in a conductive state, the insulation resistor is separated from the elastic conductive base plate; when the conductive state of the elastic conductive base plate ends, the insulation resistor and the elastic conductive base plate make contact and conduct. However, the shortcomings of this prior art document are that it cannot provide real-time warnings of overcurrent in the wall-mounted circuit breaker, cannot intuitively provide users with the measured current value, thus failing to achieve current warning and protection, and cannot disconnect overload current.

[0005] Prior art document 2 (CN215449345U) discloses a visual ammeter, including an ammeter body, a cover on the upper side of the front wall of the ammeter body, a dial on the rear side of the cover, a plurality of scale lines evenly distributed on the upper side of the front wall of the dial, an adjustment knob in the middle of the front wall of the dial, the adjustment knob passing through the front wall of the ammeter body and extending to the outside of the cover, a pointer connected to the rear end of the adjustment knob, a mounting plate on the lower side of the cover, and three bases evenly connected to the upper side of the mounting plate. However, the shortcomings of this prior art document are that the ammeter is magnetically controlled, which is less sensitive to real-time monitoring of current values ​​and has a shorter service life than digital ammeters, and it cannot disconnect overload current in a timely manner. Utility Model Content

[0006] To address the shortcomings of existing technologies, this invention provides a DC anti-arc wall-mounted circuit with visualized current, which not only reduces the occurrence of arcing but also displays the safe current and generates an alarm for overload current.

[0007] The present invention adopts the following technical solution.

[0008] A DC arc-damping wall-mounted circuit breaker with current visualization includes a wall-mounted circuit breaker body, a visual digital ammeter, positive and negative terminals, positive and negative wiring cables, a connecting base, a first movable plate, and a second movable plate. The wall-mounted circuit breaker body and the connecting base form a housing structure. The first and second movable plates are located inside the housing, with the first movable plate located below the wall-mounted circuit breaker body. The first movable plate has a first moving hole and a second moving hole, both of which have an inclined surface and a vertical surface. The inclined surface of the first moving hole is located below the first terminal, and the inclined surface of the second moving hole is located below the second terminal. The second movable plate is located directly below the first movable plate and above the elastic conductive base.

[0009] According to the current visualization DC anti-arc wall array, the second movable plate has a third movable hole and a fourth movable hole. Both the third movable hole and the fourth movable hole are provided with an inclined surface and a vertical surface. The inclined surface of the third movable hole is located below the vertical surface of the first movable hole, and the inclined surface of the fourth movable hole is located below the second movable hole.

[0010] According to the current visualization DC anti-arc wall panel, a first spring and a second spring are respectively provided on both sides of the first movable plate. One end of the first spring and the second spring are connected to the body of the anti-arc wall panel, and the other end is connected to the first movable plate.

[0011] According to the current visualization DC anti-arc wall panel, a third spring and a fourth spring are respectively provided on both sides of the second movable plate. One end of the third spring and the fourth spring are connected to the body of the anti-arc wall panel, and the other end is connected to the second movable plate.

[0012] According to the aforementioned DC anti-arc wall busbar with current visualization, the visualization digital ammeter, the connecting base, and the positive and negative line cables are arranged inside the housing. The upper surface of the anti-arc wall busbar body is a DC wall busbar panel, and a viewing window is provided on the panel. The area of ​​the viewing window is the same as that of the visualization digital ammeter, and the visualization digital ammeter is located below the viewing window.

[0013] According to the aforementioned DC anti-arc wall panel for current visualization, the visualization digital ammeter, the connecting base, and the positive and negative line cables are disposed inside the housing, and the visualization digital ammeter is connected to the visualization digital ammeter via the positive and negative line cables.

[0014] According to the aforementioned DC anti-arc strip for current visualization, the upper surface of the anti-arc strip body is a DC power strip panel with a viewing window; the area of ​​the viewing window is the same as that of the visualization digital ammeter, and the visualization digital ammeter is located below the viewing window.

[0015] According to the aforementioned DC anti-arc wall panel for current visualization, the electrical connection base further includes a fastening clip, which is disposed on the connection base and the positive and negative line cables.

[0016] According to the aforementioned DC arc-prevention wall panel with visualized current, the connecting base has connection holes at its four corners, and the upper surface of the wall panel body is detachably fixed to the connecting base by fastening screws. The wall panel also includes a master switch button located on the surface of the housing.

[0017] The beneficial effect of this utility model is that, compared with the prior art,

[0018] (1) This utility model provides a DC anti-arc wall bar with visualized current, which can realize overload warning by reading the current value;

[0019] (2) This application designs a first movable plate and a second movable plate. The two work together to clamp the conductive post, preventing unreliable contact between the conductive post and the conductive sheet, thereby greatly reducing the occurrence of arcing.

[0020] (3) The wall panel is equipped with insulation resistance, which can effectively realize the safety protection of the DC anti-arc wall panel. When the current exceeds the rated current, the anti-arc wall panel will trip to protect the safety of the electrical equipment. Attached Figure Description

[0021] Figure 1 This is a front view of the DC wall-mounted power strip provided by this utility model;

[0022] Figure 2 This is a schematic diagram of the current representation provided by this utility model;

[0023] Figure 3 This is a three-dimensional view of the internal structure of the DC wall-mounted power strip provided by this utility model;

[0024] Figure 4 This is a cross-sectional view of the accommodating box, the first movable plate, and the second movable plate provided by this utility model;

[0025] Figure 5 This is a three-dimensional structural diagram of the first movable plate provided by this utility model.

[0026] In the diagram: 1. Anti-arc wall panel body; 2. Visual digital ammeter; 3. Positive and negative terminals; 4. Main switch button; 5. Alarm, etc.; 6. Connection hole; 7. Positive and negative wiring; 8. Fastening clip; 9. Connecting base; 10. Insulation resistor; 11. Elastic conductive base; 20. First movable hole; 21. Second movable hole; 22. Third movable hole; 23. Fourth movable hole; 24. First movable plate; 25. Second movable plate; 30. First spring; 31. Second spring; 32. Third spring; 33. Fourth spring; 40. First terminal; 41. Second terminal. Detailed Implementation

[0027] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. The embodiments described in this application are only some embodiments of this utility model, and not all embodiments. Based on the spirit of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0028] like Figure 1-5 As shown, Embodiment 1 of this utility model provides a DC anti-arc wall bar with current visualization, including the anti-arc wall bar body 1, a visualization digital ammeter 2, positive and negative terminals 3, a first movable plate 24 and a second movable plate 25.

[0029] The anti-arc-pull wall panel 1 and the connecting base 9 constitute a housing. The visual digital ammeter 2, the connecting base and the positive and negative line cables 7 are set inside the housing. The upper surface of the anti-arc-pull wall panel 1 is a DC wall panel with a window. The area of ​​the window is the same as that of the visual digital ammeter 2. The visual digital ammeter 2 is set below the window.

[0030] like Figure 4 or Figure 5 As shown, the first movable plate 24 and the second movable plate 25 are located inside the accommodating box. The first movable plate 24 is located below the body 1 of the anti-arc wall. The first movable plate 24 has a first moving hole 20 and a second moving hole 21. Both the first moving hole 20 and the second moving hole 21 are provided with an inclined surface and a vertical surface. The inclined surface of the first moving hole 20 is located below the first insertion hole 40, and the inclined surface of the second moving hole 21 is located below the second insertion hole 41.

[0031] A second movable plate 25 is disposed below the first movable plate 24 and is located above the elastic conductive base 11. The second movable plate 25 has a third movable hole 22 and a fourth movable hole 23. Both the third movable hole 22 and the fourth movable hole 23 are provided with an inclined surface and a vertical surface. The inclined surface of the third movable hole 22 is located below the vertical surface of the first movable hole 20, and the inclined surface of the fourth movable hole 23 is located below the second movable hole 21.

[0032] The elastic conductive base 11 provides support for the second movable plate 25, and the second movable plate 25 provides support for the first movable plate 24.

[0033] A first spring 30 and a second spring 31 are respectively provided on both sides of the first movable plate 24. One end of the first spring 30 and the second spring 31 are connected to the body 1 of the anti-arc wall, and the other end is connected to the first movable plate 24.

[0034] The second movable plate 25 is provided with a third spring 32 and a fourth spring 33 on both sides. One end of the third spring 32 and the fourth spring 33 are connected to the body 1 of the anti-arc wall, and the other end is connected to the second movable plate 25.

[0035] Initially, all springs are in a relaxed state. When the conductive post on the plug passes through the first socket 40 and the second socket 41 and contacts the inclined surfaces on the first moving hole 20 and the second moving hole 21, the component force acts on the inclined surface under the push force of the plug, causing the first movable plate 24 to move to the right. Then, it passes through the hole formed by the vertical surface and contacts the inclined surfaces on the third moving hole 22 and the fourth moving hole 23. Under the push force of the plug, the component force acts on the inclined surface, causing the second movable plate 25 to move to the left. Then, it passes through the hole formed by the vertical surface and is inserted into the conductive sheet of the elastic conductive base 11. At this time, the first spring 30 and the third spring 32 are in a stretched state, while the second spring 31 and the fourth spring 33 are in a compressed state. Under the restoring force of the first spring 30 and the second spring 31, the first movable plate 24 applies a force to the left to the conductive post; under the restoring force of the third spring 32 and the fourth spring 33, the second movable plate 25 applies a force to the right to the conductive post. Therefore, the first movable plate 24 and the second movable plate 25 can firmly clamp the conductive post, ensuring the contact quality between the conductive post and the elastic conductive seat 11 and avoiding arcing caused by poor contact quality.

[0036] Meanwhile, the electrical wall panel is equipped with an insulation resistance 10. When the conductive post of the electrical plug is separated from the positive and negative line 7, especially at the moment the conductive post is separated, the conductive plates on both sides of the insulation resistance 10 abut against the elastic conductive base plate 11, causing the resistance in the circuit of the connected equipment to increase instantaneously and the voltage to rise. At this time, the electric arc is extinguished instantaneously due to the voltage drop, avoiding the problem of DC arcing when the conductive post is separated from the elastic conductive base plate 11, and effectively realizing the safety protection of the DC anti-arc wall panel.

[0037] In a preferred but non-limiting embodiment of this utility model, the connecting base 9 has connecting holes 6 at its four corners, and the upper surface of the anti-arc wall panel body 1 is detachably fixed to the connecting base 9 by fastening screws.

[0038] More preferably, the connecting base 9 is connected to the visual digital ammeter 2 via positive and negative line cables 7.

[0039] The electrical connection base also includes a fastening clip 8, which is disposed on the connection base 9 and the positive and negative wiring cables 7.

[0040] The main switch button 4 is located on the upper part of the connecting base 9 and is used to control the switch of the current visualization DC anti-arc wall panel.

[0041] The visual digital ammeter 2 can read the current and mark the maximum current passing value, providing an early warning when the current exceeds the value.

[0042] When the DC wall busbar is powered on, compared with the existing technology, the visual ammeter can display the rated current of the DC wall busbar and the current current passing through it. When the current passing through it exceeds 95% of the rated current, the ammeter dial emits a red light, indicating that the wall busbar is about to be overloaded. The anti-arc wall busbar will trip to protect the safety of the electrical equipment.

[0043] This invention can both prevent arcing and provide real-time visual monitoring of current flow, thus serving as a preventative and alarm function.

[0044] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and not to limit it. Although the utility model has been described in detail with reference to the above embodiments, those skilled in the art should understand that modifications or equivalent substitutions can still be made to the specific implementation of this utility model. Any modifications or equivalent substitutions that do not depart from the spirit and scope of this utility model should be covered within the protection scope of the claims of this utility model.

Claims

1. A DC arc-damping wall bar with current visualization, comprising the wall bar body (1), a digital ammeter (2), positive and negative terminals (3), positive and negative wiring cables (7), a connecting base (9), a first movable plate (24), and a second movable plate (25); characterized in that: The main body (1) and connecting base (9) of the anti-arc wall strip constitute a housing structure. The first movable plate (24) and the second movable plate (25) are located inside the housing. The first movable plate (24) is located below the main body (1) of the anti-arc wall strip. The first movable plate (24) has a first moving hole (20) and a second moving hole (21). Both the first moving hole (20) and the second moving hole (21) are provided with an inclined surface and a vertical surface. The inclined surface of the first moving hole (20) is located below the first insertion hole (40), and the inclined surface of the second moving hole (21) is located below the second insertion hole (41). The second movable plate (25) is provided close to the bottom of the first movable plate (24), and the second movable plate (25) is located above the elastic conductive base (11).

2. The DC anti-arc wall panel with current visualization according to claim 1, characterized in that: The second movable plate (25) has a third movable hole (22) and a fourth movable hole (23). Both the third movable hole (22) and the fourth movable hole (23) are provided with an inclined surface and a vertical surface. The inclined surface of the third movable hole (22) is located below the vertical surface of the first movable hole (20), and the inclined surface of the fourth movable hole (23) is located below the second movable hole (21).

3. A DC arc-prevention wall panel with visualized current according to claim 1, characterized in that: The first movable plate (24) is provided with a first spring (30) and a second spring (31) on both sides. The first spring (30) and the second spring (31) are connected at one end to the body (1) of the anti-arc wall and at the other end to the first movable plate (24).

4. A DC arc-prevention wall panel with visualized current according to claim 1, characterized in that: The second movable plate (25) is provided with a third spring (32) and a fourth spring (33) on both sides respectively. The third spring (32) and the fourth spring (33) are connected at one end to the body (1) of the anti-arc wall and at the other end to the second movable plate (25).

5. A DC arc-prevention wall panel with visualized current according to claim 1, characterized in that: The visual digital ammeter (2), the connecting base (9) and the positive and negative line cables (7) are set inside the housing. The upper surface of the anti-arc wall panel (1) is a DC wall panel with a window on it. The area of ​​the window is the same as that of the visual digital ammeter (2). The visual digital ammeter (2) is set below the window.

6. A DC arc-prevention wall panel with visualized current according to claim 1, characterized in that: The visual digital ammeter (2), the connecting base (9) and the positive and negative line cable (7) are set inside the housing. The visual digital ammeter (2) is connected to the visual digital ammeter (2) through the positive and negative line cable (7).

7. A DC arc-prevention wall panel with visualized current according to claim 1, characterized in that: The upper surface of the body (1) of the anti-arc wall strip is a DC power strip panel with a viewing window; the area of ​​the viewing window is the same as that of the visual digital ammeter (2), and the visual digital ammeter (2) is located below the viewing window.

8. A DC arc-prevention wall panel with visualized current according to claim 1, characterized in that: The connecting base (9) also includes a fastening clip (8), which is disposed on the connecting base (9) and the positive and negative line cables (7).

9. A DC arc-prevention wall panel with visualized current according to claim 1, characterized in that: The connecting base (9) has connecting holes (6) at its four corners. The upper surface of the anti-pull arc wall panel (1) is detachably fixed to the connecting base (9) by fastening screws.

10. A DC arc-prevention wall panel with visualized current according to claim 1, characterized in that: The wall panel is also equipped with a main switch button (4), which is located on the surface of the housing.

Images