Passive ground current alarm

Abstract

The application discloses a passive ground line current warning device, which comprises a fixing assembly, a clamping assembly, a rainproof assembly and a monitoring assembly. The fixing assembly comprises a main shell, a moving shell arranged on the surface of the main shell and a positioning piece arranged on the surface of the main shell. The clamping assembly comprises a linkage arranged on the side surface of the main shell and a clamping piece capable of cooperating with the linkage. The rainproof assembly comprises a matching piece matched with the positioning piece and a rainproof plate fixedly connected with the matching piece. The monitoring assembly comprises a current transformer arranged on the surface of the main shell, a resistance piece electrically connected with the current transformer and a display lamp arranged on the surface of the main shell. The copper bar is fixed by the fixing assembly, and the electric wire pole is clamped by the clamping assembly. If electric leakage occurs, the monitoring assembly starts to work and sends out a warning through the display lamp. If protection is needed, the matching piece is slid to make the rainproof plate expand to achieve the protection effect.

Description

Technical Field

[0001] This invention relates to the field of power system technology, and in particular to a passive ground current warning device. Background Technology

[0002] In current power supply systems, especially in low-voltage three-phase four-wire power supply systems, current will be generated in the ground wire whenever a leakage occurs. Leakage due to damaged insulation contacting conductors is frequent and often goes undetected for days or even months, usually only being discovered through abnormal electricity bills or abnormal line losses in the distribution area. This causes significant safety hazards and economic losses.

[0003] Meanwhile, many warning devices rely solely on internal clamping mechanisms for fixation, often resulting in unstable and insecure installations. Furthermore, since these devices operate outdoors, severe weather conditions may affect their functionality. Therefore, there is a need for a passive ground current warning device that provides real-time alerts without requiring a power supply, is securely installed, and offers some level of protection. Summary of the Invention

[0004] The purpose of this section is to outline some aspects of embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be construed as limiting the scope of the invention.

[0005] In view of the problems existing in the above and / or existing passive ground current warning devices, the present invention is proposed.

[0006] Therefore, the problem to be solved by this invention is how to solve the problem that traditional leakage current measurement requires a power supply, cannot be measured for a long time, and is fixed in place.

[0007] To solve the above-mentioned technical problems, the present invention provides the following technical solution: a passive ground current warning device, comprising: a fixing assembly including a main housing, a movable shell disposed on the surface of the main housing, and a positioning member disposed on the surface of the main housing; a clamping assembly including a linkage member disposed on the side surface of the main housing, and a clamping member that can cooperate with the linkage member; a rainproof assembly including a mating member that cooperates with the positioning member, and a rainproof plate fixedly connected to the mating member; and a monitoring assembly including a current transformer disposed on the surface of the main housing, a resistor electrically connected to the current transformer, and an indicator light disposed on the surface of the main housing.

[0008] As a preferred embodiment of the passive ground current warning device of the present invention, the movable housing includes a detachable bolt, which is connected to the main housing. The movable housing also includes a first toothed rack on the side surface. One end of the movable housing is curved and the other end is wavy.

[0009] In a preferred embodiment of the passive ground current warning device of the present invention, the positioning element includes a positioning post disposed on the surface of the main housing, the positioning post being fixedly connected to the main housing, and the positioning element further includes a rubber pad disposed at the end of the positioning post, the rubber pad being fixedly connected to the positioning post.

[0010] In a preferred embodiment of the passive ground current warning device of the present invention, the linkage includes a first gear rotatably connected to the side surface of the main housing, the first gear engaging with the first rack.

[0011] In a preferred embodiment of the passive ground current warning device of the present invention, the linkage includes a connecting rod, which is fixedly connected to the first gear, and the linkage also includes a second gear, which is fixedly connected to the connecting rod.

[0012] In a preferred embodiment of the passive ground current warning device of the present invention, the clamping member includes a fixing rod fixedly connected to the main housing, and a telescopic rod is provided at the end of the fixing rod, the telescopic rod being fixedly connected to the fixing rod.

[0013] In a preferred embodiment of the passive ground current warning device of the present invention, the clamping member further includes a clamping rod that telescopically cooperates with the telescopic rod, and the clamping rod includes a second rack that meshes with the second gear.

[0014] In a preferred embodiment of the passive ground current warning device of the present invention, the fixing rods are respectively oriented up and down, the clamping rods move in opposite directions in a ring shape, and the space between the clamping rods can accommodate the second gear.

[0015] In a preferred embodiment of the passive ground current warning device of the present invention, the mating component includes a sliding box that slides with the positioning post and a first movable rod disposed on the surface of the sliding box, wherein the first movable rod is fixedly connected to the rainproof plate.

[0016] In a preferred embodiment of the passive ground current warning device of the present invention, the mating component further includes a fixing post disposed on the surface of the main housing, the fixing post being fixedly connected to the main housing, and a second movable rod being disposed at the end of the fixing post, the second movable rod being fixedly connected to the rainproof plate.

[0017] The beneficial effects of this invention are as follows: the copper rod is fixed by the fixing component, and the wire post is clamped by the clamping component to achieve the overall fixation effect. At the same time, the rainproof component can provide effective protection in the face of severe weather, and the monitoring component can monitor leakage in real time and provide reminders. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Wherein:

[0019] Figure 1 This is a structural diagram of a passive ground current warning device.

[0020] Figure 2 This is a side view of a passive ground current warning device.

[0021] Figure 3 This is a partial schematic diagram of the clamping assembly of a passive ground current warning device.

[0022] Figure 4 This is a schematic diagram of the monitoring component circuit for a passive ground current warning device. Detailed Implementation

[0023] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0024] Many specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be practiced in other ways different from those described herein, and those skilled in the art can make similar extensions without departing from the spirit of the invention. Therefore, the invention is not limited to the specific embodiments disclosed below.

[0025] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places throughout this specification does not necessarily refer to the same embodiment, nor is it a single embodiment or an embodiment selectively excluded from other embodiments.

[0026] Example 1

[0027] Reference Figure 1 , Figure 2 and Figure 4This is the first embodiment of the present invention. This embodiment provides a passive ground current warning device. The passive ground current warning device includes a fixing component 100, a clamping component 200, a rainproof component 300, and a monitoring component 400. The fixing component 100 and the clamping component 200 fix the overall device and clamp the copper rod. The rainproof component 300 provides external protection for the overall device. The monitoring component 400 monitors the presence of leakage current in real time and issues a warning.

[0028] Specifically, the fixing component 100 includes a main housing 101, a movable shell 102 disposed on the surface of the main housing 101, and a positioning member 103 disposed on the surface of the main housing 101. The movable shell 102 can be installed on the main housing 101. One side of the movable shell 102 is hollowed out to leave space for the clamping component 200.

[0029] Preferably, the clamping assembly 200 includes a linkage member 201 disposed on the side surface of the main housing 101, and a clamping member 202 that can cooperate with the linkage member 201. The linkage member 201 is mainly used to adjust the thickness of different utility poles, thereby driving the clamping member 202 to adapt to the utility pole to be clamped, so as to achieve the fixing effect.

[0030] Preferably, the rainproof component 300 includes a mating component 301 that cooperates with the positioning component 103, and a rainproof plate 302 that is fixedly connected to the mating component 301. The mating component 301 is mainly used to drive the rainproof plate 302 to move and adjust the state of the rainproof plate 302. When the rainproof component 300 is not in use, the mating component 301 can be dragged to stand the rainproof plate 302 upright. The rainproof plate 302 can be made of polycarbonate material, and its bottom can be welded to the mating component 301.

[0031] Preferably, the monitoring component 400 includes a current transformer 401 disposed on the surface of the main housing 101, a resistor 402 electrically connected to the current transformer 401, and an indicator light 403 disposed on the surface of the main housing 101. When leakage occurs, the current generated by the ground wire causes the open-type current transformer to generate a current of 3-30mA on its secondary side. This current generates a voltage across the resistor 402. Under the action of the resistor 402 and the indicator light 403, the indicator light 403 can maintain normal illumination when a certain leakage current is reached. The resistance value of the resistor 402 is determined by the capacity of the current transformer and is used to prevent the current transformer from opening.

[0032] In use, the copper rod is fixed by the fixing component 100 and the clamping component 200 clamps the power pole. If leakage occurs, the monitoring component 400 will start to work and issue a warning through the indicator light 403. If protection is required, the sliding mating part 301 can be slid to allow the rainproof plate 302 to unfold to achieve the protection function.

[0033] Example 2

[0034] Reference Figure 1 , Figure 2 and Figure 3 This is the second embodiment of the present invention, which is based on the previous embodiment.

[0035] Specifically, the movable housing 102 includes a detachable bolt 102a, which is connected to the main housing 101. The movable housing 102 also includes a first toothed rack 102b on the side surface. One end of the movable housing 102 is curved and the other end is wavy. When it is necessary to adapt to the wire pole thickness adjustment clamping assembly 200, the detachable bolt 102a is removed first. At this time, the movable housing 102 can slide left and right, thereby driving the clamping rod 202c to clamp.

[0036] Preferably, the positioning component 103 includes a positioning post 103a disposed on the surface of the main housing 101, the positioning post 103a being fixedly connected to the main housing 101, and the positioning component 103 also includes a rubber pad 103b disposed at the end of the positioning post 103a, the rubber pad 103b being fixedly connected to the positioning post 103a, the rubber pad 103b being a self-contracting and compressing rubber pad under force, which can be adapted to different types of copper rods, and the positioning post 103a being welded to the main housing 101.

[0037] Preferably, the linkage 201 includes a first gear 201a rotatably connected to the side surface of the main housing 101. The first gear 201a engages with the first rack 102b. The first gear 201a is partially connected to the main housing 101 and meshes with the first rack 102b. The size of the first gear 201a should be smaller than the hollow space left on the side surface of the movable housing 102.

[0038] Preferably, the linkage 201 includes a connecting rod 201b, which is fixedly connected to the first gear 201a. The linkage 201 also includes a second gear 201c, which is fixedly connected to the connecting rod 201b. The linkage 201 is divided into upper and lower parts. The connecting rod 201b can be welded to the first gear 201a and the second gear 201c. The size of the second gear 201c should be just right to fit the space reserved in the upper and lower parts of the linkage 201.

[0039] Preferably, the clamping member 202 includes a fixed rod 202a fixedly connected to the main housing 101, and a telescopic rod 202b is provided at the end of the fixed rod 202a. The telescopic rod 202b is fixedly connected to the fixed rod 202a. The fixed rod 202a can be welded to the main housing 101. The telescopic rod 202b can be cylindrically welded to the end of the fixed rod 202a, and the two telescopic rods 202b face each other.

[0040] Preferably, the clamping member 202 further includes a clamping rod 202c that telescopically cooperates with the telescopic rod 202b. The clamping rod 202c includes a second rack 202c-1, which meshes with a second gear 201c. The telescopic rod 202b can slide and extend inside the clamping rod 202c.

[0041] Preferably, the fixing rods 202a are oriented up and down respectively, and the clamping rods 202c move towards each other in a ring shape. The space left between the clamping rods 202c can accommodate the second gear 201c. The shape of the clamping rods 202c should take into account the shape of the utility pole, so the final shape of the two clamping rods 202c should be a ring shape.

[0042] Preferably, the mating component 301 includes a sliding box 301a that slides with the positioning post 103a, and a first movable rod 301b disposed on the surface of the sliding box 301a. The first movable rod 301b is fixedly connected to the rainproof plate 302. The sliding box 301a should only slide within the space of the positioning post 103a and will not exceed the range of the positioning post 103a due to the obstruction of the rubber pad 103b. One end of the first movable rod 301b is welded to the sliding box 301a, and the other end can be welded to the rainproof plate 302.

[0043] Preferably, the mating component 301 further includes a fixing post 301c disposed on the surface of the main housing 101. The fixing post 301c is fixedly connected to the main housing 101. A second movable rod 301d is disposed at the end of the fixing post 301c. The second movable rod 301d is fixedly connected to the rainproof plate 302. The fixing post 301c is welded to the main housing 101. The end of the second movable rod 301d can be welded to the rainproof plate 302.

[0044] In use, the copper rod is inserted into the hollow space inside the main housing 101, and the rubber pad 103b is able to clamp the copper rod under force. At the same time, the detachable bolt 102a is removed, and the sliding housing 102 is slidable. At this time, the first rack 102b drives the first gear 201a to rotate, and the second gear 201c rotates accordingly. The second gear 201c drives the second rack 202c-1 to move, and the clamping rod 202c moves in the opposite direction, finally clamping the utility pole to achieve a fixing effect. When using the rainproof component 300, by moving the sliding box 301a, the two sets of movable rods will move to adjust the position of the rainproof plate 302.

[0045] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. A passive ground fault current warning device, characterized by: The utility model relates to a kind of solar energy monitoring device, including, Fixed assembly (100), including main shell (101), mobile shell (102) being arranged on the surface of the main shell (101), and positioning member (103) being arranged on the surface of the main shell (101);And, Clamping assembly (200), including linkage (201) being arranged on the side surface of the main shell (101), and can be matched with the linkage (201) gripping member (202);And, Rainproof assembly (300), including cooperating member (301) with the positioning member (103), and rainproof plate (302) fixedly connected with the cooperating member (301);And, Monitoring assembly (400), including current transformer (401) being arranged on the surface of the main shell (101), and resistance member (402) electrically connected with the current transformer (401), and display lamp (403) being arranged on the surface of the main shell (101); The gripping member (202) includes fixed rod (202a) fixedly connected to the main shell (101), and telescopic rod (202b) is arranged at the end of the fixed rod (202a), and the telescopic rod (202b) is fixedly connected with the fixed rod (202a); The gripping member (202) further includes clamping rod (202c) in telescopic cooperation with the telescopic rod (202b), and the clamping rod (202c) includes second rack (202c-1); The linkage (201) further includes second gear (201c), and the second rack (202c-1) is meshedly connected with the second gear (201c); The positioning member (103) includes positioning column (103a) being arranged on the surface of the main shell (101), and the positioning column (103a) is fixedly connected with the main shell (101), and the positioning member (103) further includes rubber pad (103b) being arranged at the end of the positioning column (103a), and the rubber pad (103b) is fixedly connected with the positioning column (103a); The linkage (201) includes first gear (201a) rotatably connected to the side surface of the main shell (101), and the mobile shell (102) further includes first rack (102b) on the side surface, and the first gear (201a) cooperates with the first rack (102b); The linkage (201) includes connecting rod (201b), and the connecting rod (201b) is fixedly connected with the first gear (201a), and the second gear (201c) is fixedly connected with the connecting rod (201b).

2. The passive ground fault current warning device of claim 1, wherein: The mobile shell (102) includes detachable bolt (102a), and the detachable bolt (102a) is connected with the main shell (101), one end of the mobile shell (102) is curved, and the other end is wavy.

3. The passive ground fault current warning device of claim 2, wherein: The fixed rod (202a) is respectively oriented upwards and downwards, the clamping rod (202c) is in the form of embracing movement, and the space left between the clamping rod (202c) can be adapted to the second gear (201c).

4. The passive ground fault current warning device of claim 3, wherein: The fitting piece (301) comprises a sliding box (301a) in sliding fit with the positioning column (103a), and a first movable rod (301b) arranged on the surface of the sliding box (301a) and fixedly connected with the rainproof plate (302).

5. The passive ground fault current warning device of claim 4, wherein: The fitting piece (301) further comprises a fixing column (301c) arranged on the surface of the main shell (101) and fixedly connected with the main shell (101), and the fixing column (301c) is provided with a second movable rod (301d) at the end portion, and the second movable rod (301d) is fixedly connected with the rainproof plate (302). The fitting piece (301) further comprises a fixing column (301c) arranged on the surface of the main shell (101) and fixedly connected with the main shell (101), and the fixing column (301c) is provided with a second movable rod (301d) at the end portion, and the second movable rod (301d) is fixedly connected with the rainproof plate (302).

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