Novel crab-claw-shaped jointing clamp for overhauling direct-current storage battery pack of transformer substation and use method

Abstract

The invention relates to a novel crab-claw-shaped jointing clamp for overhauling a direct-current storage battery pack of a transformer substation and a using method, and belongs to the field of storage battery bridging equipment. The wiring clamp is symmetrically provided with two clamping parts, and wiring connecting plates are arranged above the inner sides of the clamping parts; the clamping part comprises a chuck and a connecting plate, the exterior of the chuck is arc-shaped, the interior of the chuck is concave, the chuck is arranged at the front end of the connecting plate, the chuck and the connecting plate are integrally formed, the wiring clamp is connected with a binding post of a storage battery through the chuck, the wiring connecting plate comprises a fixing plate and a conductive connecting plate, one end of the wiring connecting plate is the fixing plate, and the other end of the wiring connecting plate is the conductive connecting plate. The fixing plate and the conductive connecting plate are integrally formed parts, the fixing plate is fixedly connected with the connecting plate, a clamping bolt and a nut are arranged on the fixing plate, and a wiring bolt is arranged on the conductive connecting plate; the shape of the jaw at the front end of the wire clamp is improved, and the chuck and the clamping strip are designed, so that the effective contact surface between the wiring wire clamp and the storage battery is effectively increased, and reliable and firm wiring is ensured.

Description

Technical Field

[0001] The present invention relates to the field of battery jumper devices, and more specifically, to a crab-claw type wiring clip for overhauling DC battery packs in a new type of substation and its usage method. Background Art

[0002] During the operation of a substation, the DC power supply system undertakes the important function of supplying power to control loads and key DC power equipment. As the core component of this system, the battery pack is composed of multiple single cells connected in series, and its reliability directly affects the safe operation of secondary equipment. It should be noted that some substations adopt a single-source DC architecture. When a single cell in the battery pack deteriorates and fails, due to the lack of a dedicated wiring device, maintenance personnel face technical bottlenecks when carrying out live replacement operations. If the abnormal battery is not disposed of in time, it may cause the DC bus to lose voltage, resulting in power outage of important secondary equipment such as protection devices and monitoring systems, seriously threatening the power supply continuity of the substation and the safe and stable operation of the power grid. Therefore, the research and development of a dedicated tool for live replacement of batteries has become an urgent need to improve the quality and efficiency of maintenance. Summary of the Invention

[0003] To solve the above technical problems, the present invention provides a crab-claw type wiring clip for overhauling DC battery packs in a new type of substation and its usage method.

[0004] The object of the present invention is achieved through the following technical solutions:

[0005] On the one hand, the present invention discloses a crab-claw type wiring clip for overhauling DC battery packs in a new type of substation, including: a clamping part and a wiring connection plate; the wiring clip is symmetrically provided with two clamping parts, and a wiring connection plate is arranged above the inner side of the clamping part; the clamping part includes: a chuck and an adapter plate; the outside of the chuck is arc-shaped, and the inside is concave; the chuck is arranged at the front end of the adapter plate, and the chuck and the adapter plate are integrally formed; the wiring clip is connected to the battery terminal through the chuck; the wiring connection plate includes: a fixing plate and a conductive connection plate; one end of the wiring connection plate is a fixing plate, and the other end is a conductive connection plate; the fixing plate and the conductive connection plate are integrally formed, the fixing plate is fixedly connected to the adapter plate, a clamping bolt and a nut are arranged on the fixing plate, and a wiring bolt is arranged on the conductive connection plate.

[0006] According to the crab-claw type wiring clip for overhauling DC battery packs in the new type of substation, not less than one fixing hole is opened on the fixing plate, and the clamping bolt passes through the fixing hole and cooperates with the nut to fix the two wiring connection plates together.

[0007] According to the crab-claw type wiring clip for overhauling DC battery packs in the new type of substation, a number of wiring holes are opened on the conductive connection plate, and wiring bolts are arranged on the wiring holes for connecting with wires.

[0008] According to the crab-claw type wiring clip for overhauling DC battery packs of the new type substation, a gap is provided in the middle of a pair of clamping parts and they are movably connected through a clamping bolt.

[0009] According to the crab-claw type wiring clip for overhauling DC battery packs of the new type substation, a plurality of clamping strips are fixedly arranged above the chuck, and the clamping strips are arranged around the concave part of the chuck.

[0010] According to the crab-claw type wiring clip for overhauling DC battery packs of the new type substation, the tops of a plurality of clamping strips are arranged at an angle inward relative to the bottoms, and the angle range is 85° to 89°, which is used to further clamp the battery terminal.

[0011] According to the crab-claw type wiring clip for overhauling DC battery packs of the new type substation, the clamping part and the wiring connecting plate are formed by stamping a copper plate, and the two parts form a 90° angle.

[0012] According to the crab-claw type wiring clip for overhauling DC battery packs of the new type substation, the clamping part, the wiring connecting plate and the wiring bolt form a conductive body. After a pair of chucks clamp the battery terminal, the current can flow along the conductive body to the external wire.

[0013] On the other hand, the present invention also discloses a using method of the crab-claw type wiring clip for overhauling DC battery packs of the new type substation, including: a clamping method and a dismounting method;

[0014] The clamping method includes the following steps:

[0015] Connect the battery and the replacement device for the first connection through the wiring bolt, the wiring connecting plate and the chuck;

[0016] Remove the clamping bolt and the nut, insert the chucks of a pair of clamping parts into the corresponding terminals of the battery, and then install the clamping bolt and rotate the clamping bolt until the jaws of the chuck are clamped;

[0017] After the jaws are clamped, install the wiring bolt and rotate the wiring bolt to fix the wire on the wiring connecting plate;

[0018] The dismounting method includes the following steps:

[0019] Rotate the wiring bolt to move the wire away from the wiring connecting plate and remove the wiring bolt;

[0020] Rotate the clamping bolt to drive the openings of the two jaws to an opening degree that can be separated from the battery terminal.

[0021] Compared with the prior art, the beneficial effects of the present invention at least include:

[0022] 1. By improving the shape of the front jaw of the wire clamp and designing the chuck and clamping strip, the effective contact area between the wiring wire clamp and the battery is effectively increased, ensuring reliable and firm wiring.

[0023] 2. The clamping part of the present invention is integrally formed with the wiring connection plate, with a large current-carrying capacity.

[0024] 3. The present invention uses detachable clamping bolts and nuts for adjusting the opening and closing degree, which is convenient for installation and disassembly, improves the convenience of wire clamp operation in a narrow space, and the clamping bolts, nuts, chuck and clamping strip prevent the wiring clip from falling off the battery terminal due to external force, improving safety. By adjusting the tightening bolts and nuts, the opening degree of the chuck can be controlled to achieve flexible adjustment of the opening degree. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 is a three-dimensional structural schematic diagram of the first embodiment of the present application;

[0026] Figure 2 is a rear view of the first embodiment of the present application;

[0027] Figure 3 is a side view of the first embodiment of the present application;

[0028] Figure 4 is a three-dimensional structural schematic diagram of the second embodiment of the present application;

[0029] In the figure: 1. Clamping part; 101. Chuck; 102. Connecting plate; 103. Clamping strip; 2. Wiring connection plate; 201. Fixed plate; 202. Conductive connection plate; 203. Fixed hole; 204. Clamping bolt; 205. Nut; 206. Wiring hole; 207. Wiring bolt. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0030] To make the objectives, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. The embodiments described in this application are only a part of the embodiments of the present invention, not all of them. Based on the spirit of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0031] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by terms such as "front", "rear", "inner", "outer", "right", "left", "both ends", "one end", "the other end", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present invention. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0032] In the description of the present invention, it should be noted that unless otherwise clearly specified and defined, terms such as "installation", "provided with", "connection", etc. should be understood in a broad sense. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0033] First Embodiment:

[0034] As Figures 1-3 shown, the present invention provides a crab - type wiring clip for overhauling DC battery packs in a new - type substation, including: a clamping part 1 and a wiring connection plate 2; a wiring connection plate 2 is arranged above the inner side of the clamping part 1, and two clamping parts 1 are symmetrically arranged for the wiring clip.

[0035] The clamping part 1 includes: a chuck 101 and a connecting plate 102; the outside of the chuck 101 is arc - shaped and the inside is concave; the wiring clip is connected to the battery terminal through the chuck 101, and the concave design of the chuck 101 can effectively increase the contact area between the wiring clip and the battery terminal. The chuck 101 is arranged at the front end of the connecting plate 102, and the chuck 101 and the connecting plate 102 are integrally formed.

[0036] The wiring connection plate 2 includes: a fixing plate 201 and a conductive connection plate 202; the fixing plate 201 and the conductive connection plate 202 are integrally formed, the fixing plate 201 is fixedly connected to the connecting plate 102, at least one fixing hole 203 is opened on the fixing plate 201, and a clamping bolt 204 passes through the fixing hole 203 and cooperates with a nut 205 to fix two wiring connection plates 2 together; several wiring holes 206 are opened on the conductive connection plate 202, and a wiring bolt 207 is arranged on the wiring hole 206 for connecting with a wire.

[0037] A gap is provided in the middle of a pair of clamping parts 1, and the clamping parts 1 are movably connected through a clamping bolt 204.

[0038] The wiring clip can be firmly clamped on the terminal of the storage battery by the clamping bolt 204, the nut 205 and the chuck 101, which is used to prevent the wiring clip from falling off the terminal of the storage battery due to external force, improving the safety. By adjusting the clamping bolt 204 and the nut 205, the opening degree of a pair of chucks 101 can be controlled to achieve flexible adjustment of the opening degree.

[0039] The clamping part 1, the wiring connecting plate 2 and the wiring bolt 207 form a conductive body. After a pair of chucks 101 clamp the terminal of the storage battery, the current can flow along the conductive body to the external wire.

[0040] The clamping part 1 is made of copper.

[0041] The clamping part 1 and the wiring connecting plate 2 are formed by stamping a copper plate, and the two parts form a 90° angle.

[0042] After the wiring connecting plate 2 is aligned, the clamping bolt 204 and the wiring bolt 207 are installed.

[0043] Second embodiment:

[0044] As Figure 4 shown, several clamping strips 103 are fixedly arranged above the chuck 101. The clamping strips 103 are arranged around the concave part of the chuck 101. The top of several clamping strips 103 is set at an angle inward relative to the bottom, and the angle range is 85°-89°, which is used to further clamp the terminal of the storage battery.

[0045] The present invention also provides a using method of the crab claw type wiring clip for overhauling the DC storage battery group of a new type substation, including a clamping method and a dismounting method.

[0046] The clamping method includes the following steps:

[0047] S1. Connect the storage battery and the replacement device for the first time through the wiring bolt 207, the wiring connecting plate 2 and the chuck 101.

[0048] S2. Remove the clamping bolt 204 and the nut 205. The chucks 101 of a pair of clamping parts 1 extend into the corresponding terminal of the storage battery, and then install the clamping bolt 204 and rotate the clamping bolt 204 until the jaws of the chucks 101 are clamped.

[0049] S3. After the jaws are clamped, install the wiring bolt 207 and rotate the wiring bolt 207 to fix the wire on the wiring connecting plate 2.

[0050] The dismounting method includes the following steps:

[0051] S1. Rotate the wiring bolt 207 to move the wire away from the wiring connecting plate 2 and remove the wiring bolt 207.

[0052] S2. Rotate the clamping bolt 204 to drive the openings of the two jaws to an opening degree that can disengage from the battery terminal.

[0053] Compared with the prior art, the beneficial effects of the present invention at least include:

[0054] 1. By improving the shape of the front jaws of the wire clamp and designing the chuck and the clamping strip, the effective contact surface between the wiring wire clamp and the battery is effectively increased, ensuring reliable and firm wiring.

[0055] 2. The clamping part and the wiring connecting plate of the present invention are integrally formed, with a large current-carrying capacity.

[0056] 3. The present invention adopts detachable clamping bolts and nuts for adjusting the opening and closing degree, which is convenient for installation and disassembly, improves the convenience of wire clamp operation in a narrow space, and the clamping bolts, nuts, chuck and clamping strip enable the wiring clip to prevent the wiring clip from falling off the battery terminal due to external force, improving safety. The opening degree of the chuck can be controlled by adjusting the tightening bolts and nuts, realizing flexible adjustment of the opening degree.

[0057] Finally, 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 them. Although the present invention has been described in detail with reference to the above embodiments, those of ordinary skill in the art should understand that: modifications or equivalent replacements can still be made to the specific embodiments of the present invention, and any modifications or equivalent replacements that do not depart from the spirit and scope of the present invention should be covered within the protection scope of the claims of the present invention.

Claims

1. New type of crab claw type terminal clamp for maintenance of DC battery pack in substation, including: The clamping portion (1) and the wiring connecting plate (2) are characterized in that: The wiring clamp is symmetrically provided with two clamping parts (1), and a wiring connecting plate (2) is provided on the upper inner side of the clamping parts (1); The clamping portion (1) comprises: a clamping head (101) and a connecting plate (102); The clamp (101) is arc-shaped on the outside and concave-shaped on the inside; the clamp (101) is arranged at the front end of the connecting plate (102), and the clamp (101) and the connecting plate (102) are an integrally formed part; the wiring clamp is connected to the battery terminal through the clamp (101); The wiring connection plate (2) comprises: a fixing plate (201) and a conductive connection plate (202); One end of the wiring connecting plate (2) is a fixed plate (201), and the other end is a conductive connecting plate (202); the fixed plate (201) and the conductive connecting plate (202) are an integrally formed part, the fixed plate (201) and the connecting plate (102) are fixedly connected, the fixed plate (201) is provided with a clamping bolt (204) and a nut (205), and the conductive connecting plate (202) is provided with a wiring bolt (207).

2. The new crab-claw type terminal clamp for maintenance of DC battery packs in substations according to claim 1 is characterized in that: The fixing plate (201) is provided with at least one fixing hole (203), a clamping bolt (204) The fixing holes (203) cooperate with the nuts (205) to fix the two wiring connection plates (2) together.

3. The new crab-claw type terminal clamp for maintenance of DC battery packs in substations according to claim 1 is characterized in that: The conductive connecting plate (202) is provided with at least one or more wiring holes (206), and the wiring holes (206) are provided with wiring bolts (207) for connecting with the wires.

4. The new crab-claw type terminal clamp for maintenance of DC battery packs in substations according to claim 1 is characterized in that: A gap is provided in the middle of a pair of clamping parts (1), which are movably connected via clamping bolts (204).

5. The novel crab-claw type terminal clamp for maintenance of DC battery packs in substations according to claim 1 is characterized in that: A plurality of clamping strips (103) are fixedly arranged above the clamping head (101), and the clamping strips (103) are arranged around the inner concave part of the clamping head (101).

6. The new crab-claw type terminal clamp for maintenance of DC battery packs in substations according to claim 5 is characterized in that: The tops of the plurality of clamping strips (103) are arranged inwardly at an angle relative to the bottom, and the angle range is 85° to 89°, so as to further clamp the battery terminal.

7. The novel crab-claw type terminal clamp for maintenance of DC battery packs in substations according to claim 1 is characterized in that: The clamping portion (1) and the wiring connecting plate (2) are formed by stamping a copper plate, and the two parts form an angle of 90 degrees.

8. The novel crab-claw type terminal clamp for maintenance of DC battery packs in substations according to claim 1 is characterized in that: The clamping part (1), the wiring connecting plate (2) and the wiring bolt (207) constitute a conductive body. When a pair of clamps (101) clamp the battery terminal, current can flow along the conductive body to the external wire.

9. The method for using the new type of crab claw type terminal clamp for maintenance of DC battery pack in substation is characterized by: The novel crab-claw type terminal clamp for maintenance of DC battery packs in substations according to any one of claims 1 to 8 comprises: a clamping method and a disassembly method; The clamping method comprises the following steps: The storage battery is connected to the primary connection line of the replacement device through the connection bolt (207), the connection plate (2) and the clamp (101); The clamping bolt (204) and the nut (205) are removed, and the clamping heads (101) of the pair of clamping parts (1) are inserted into the corresponding terminals of the battery, and then the clamping bolt (204) is installed, and the clamping bolt (204) is rotated to the jaws of the clamping head (101) to clamp; After the jaws are clamped, the wiring bolt (207) is installed, and the wiring bolt (207) is rotated to fix the wire on the wiring connecting plate (2).

10. The method for using the new crab-claw type terminal clamp for maintenance of DC battery packs in substations according to claim 9 is characterized in that: The disassembly method comprises the following steps: Rotate the wiring bolt (207) to remove the wire from the wiring connecting plate (2), and remove the wiring bolt (207); The clamping bolt (204) is rotated to drive the opening of the two jaws to an opening degree capable of being separated from the battery terminal.

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