Power supply tool and power supply equipment

Abstract

The utility model relates to the technical field of batteries, in particular to a charging tool and charging equipment, and the charging tool comprises a conductive part, the conductive part is provided with a first conductive part and a second conductive part, the first conductive part is electrically connected with the second conductive part, the first conductive part is used for being connected with a busbar, and the second conductive part is used for being connected with the charging equipment. According to the electricity supplementing tool, the conductive part is arranged between the electricity supplementing equipment and the busbar, the alligator clip and the busbar are electrically connected through the conductive part, and compared with an original electricity supplementing mode that the corners of the busbar are pried through a steel sheet to be clamped and fixed through the alligator clip, the electricity supplementing tool does not damage the structure of a battery cell; according to the invention, the structure is simple, the structure is matched with the module busbar structure, the operation is simple, the carrying is convenient, the cost is low, and the charging tool can be quickly, conveniently and safely applied to the charging of the low-electric-quantity battery cell at the module end. The charging tool is simple in structure, is matched with the module busbar structure, is easy to operate, is convenient to carry, is low in cost, and can be applied to the charging of the low-electric-quantity battery cell at the module end.

Description

Technical Field

[0001] This application relates to the technical field of batteries, and particularly to a power supply replenishment tooling and a power supply replenishment device. Background Art

[0002] With the rapid development of the new energy vehicle industry, short blade battery cells, as automotive power batteries, have quickly gained wide application in the industry due to their high grouping efficiency, large energy density, and other advantages. During the use of short blade battery cells after being grouped, due to manufacturing differences, individual single battery cells may show an outlier phenomenon, resulting in a voltage lower than the system average value, which affects the service life of the system. To improve the system's life, manual power supply replenishment is required. However, the three-in-one bracket layout of the short blade module used for short blade battery cells is compact, and there is not enough clearance between the busbar and the cage for the alligator clip of the power supply replenishment device to grip.

[0003] Currently, for the power supply replenishment of short blade battery cell modules in the industry, the common practice is to insert a sharp and flat steel ruler into the gap between the busbar and the three-in-one bracket, and pry the steel ruler to make the corner of the busbar tilt up for the alligator clip of the power supply replenishment device to grip, forming a conductive circuit. This operation has potential safety hazards. Utility Model Content

[0004] This application provides a power supply replenishment tooling and a power supply replenishment device to solve the problem in the prior art that there are potential safety hazards when tilting up the corner of the busbar for the alligator clip of the power supply replenishment device to grip.

[0005] On the one hand, this application provides a power supply replenishment tooling, including a conductive member. The conductive member has a first conductive part and a second conductive part. The first conductive part is electrically connected to the second conductive part. The first conductive part is used to connect to the busbar, and the second conductive part is used to connect to the power supply replenishment device.

[0006] In a possible design, the first conductive part has a plate-like structure. One side surface of the first conductive part is used to fit with the outer surface of the busbar, and the second conductive part protrudes from the outer surface of the first conductive part.

[0007] In a possible design, the second conductive part has a plate-like structure, and an included angle is formed between the second conductive part and the first conductive part.

[0008] In a possible design, an avoidance groove is provided on the first conductive part.

[0009] In a possible design, it further includes a limiting rod. The limiting rod is connected to the conductive member and is used to keep the conductive member connected to the busbar.

[0010] In a possible design, a damping part is provided on the limiting rod.

[0011] In a possible design, the damping part is a sawtooth.

[0012] In a possible design, it further includes a pressing member, which is connected to the limiting rod and / or the conductive member and is used to make the conductive member abut against the bus bar.

[0013] In a possible design, the pressing member includes:

[0014] A first clamping handle, which is connected to the conductive member;

[0015] A second clamping handle, which is connected to the limiting rod, and the conductive member is rotatably connected to the limiting rod;

[0016] An elastic member, which is arranged between the first clamping handle and the second clamping handle and abuts against the first clamping handle and the second clamping handle. The elastic member makes the conductive member abut against the bus bar by pressing against the first clamping handle, and makes the limiting rod abut against the bus bar by pressing against the second clamping handle.

[0017] On the other hand, the present application also provides a power supply replenishment device, which includes the power supply replenishment tooling as described above.

[0018] The beneficial effects of the present application are as follows:

[0019] The power supply replenishment tooling of the present application includes a conductive member, which has a first conductive part and a second conductive part. The first conductive part is electrically connected to the second conductive part. The first conductive part is used to be connected to the bus bar, and the second conductive part is used to be connected to the power supply replenishment device. By arranging a conductive member between the power supply replenishment device and the bus bar, the conductive member is used to realize the electrical connection between the alligator clip and the bus bar. Compared with the original power supply replenishment method of prying up the corners of the bus bar by a steel sheet for the alligator clip to clamp, the power supply replenishment tooling of the present application does not damage the structure of the battery cell itself, eliminates the hidden danger that the steel sheet contacting the adjacent battery cell pole columns may cause short circuit of two battery cells, and can effectively avoid virtual connection. The power supply replenishment tooling of the present application can be quickly, conveniently and safely applied to the power supply replenishment of low-power battery cells at the module end.

[0020] The power supply replenishment device provided by the present application, since it includes the power supply replenishment tooling in the present application, therefore includes all the above advantages of the power supply replenishment tooling at the same time. Description of the Drawings

[0021] In order to more clearly illustrate the specific embodiments of the present application or the technical solutions in the prior art, the following will briefly introduce the drawings required to be used in the description of the specific embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0022] Figure 1 It is a schematic structural diagram of the power supply replenishment tooling provided by an embodiment of the present application;

[0023] Figure 2Another structural schematic diagram of the electrical repair tool provided by an embodiment of the present application;

[0024] Figure 3 Another structural schematic diagram of the electrical repair tool provided by an embodiment of the present application;

[0025] Figure 4 A structural schematic diagram of the connection between the electrical repair tool and an alligator clip provided by an embodiment of the present application;

[0026] Figure 5 Another structural schematic diagram of the connection between the electrical repair tool and an alligator clip provided by an embodiment of the present application;

[0027] Figure 6 A structural schematic diagram of the electrical repair tool in a charging state provided by an embodiment of the present application.

[0028] Reference numerals:

[0029] 100, conductive member; 110, first conductive portion; 111, avoidance groove; 120, second conductive portion; 200, limiting rod; 210, saw teeth; 220, shaft hole; 300, pressing member; 310, first clamping handle; 320, second clamping handle; 321, spring shaft; 330, elastic member; 400, alligator clip; 500, bus bar. Detailed implementation manners

[0030] The technical solutions of the present application will be clearly and completely described below in conjunction with the embodiments. Obviously, the described embodiments are some, but not all, of the embodiments of the present application. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present application without creative efforts shall fall within the protection scope of the present application.

[0031] Currently, in the industry, for the electrical repair of short-knife battery cell modules, the common method is: inserting a sharp and flat steel ruler into the gap between the bus bar and the three-in-one bracket, prying the steel ruler to make the corner of the bus bar tilt up for the alligator clip of the electrical repair device to clamp, forming a conductive loop. The above operations mainly have the following potential safety hazards:

[0032] When the steel ruler pries the bus bar, aluminum chips will be generated, causing the damage of the blue film of the battery cell and leading to the insulation failure of the battery pack; when the steel ruler contacts the adjacent battery cell pole columns, it will cause short circuit of two battery cells, resulting in the fire and explosion of the battery pack; the unilateral tilt of the bus bar will cause the virtual soldering between it and the battery cell pole columns. Once the current of the battery pack is too large, the virtual soldering point will overheat, affecting the use safety.

[0033] The following in conjunction with Figures 1 - 6, describes the power supply replenishment tool provided in the embodiments of the present application. The power supply replenishment tool includes a conductive member 100, the conductive member 100 has a first conductive portion 110 and a second conductive portion 120, the first conductive portion 110 is electrically connected to the second conductive portion 120, the first conductive portion 110 is used to connect to the bus bar 500, and the second conductive portion 120 is used to connect to the power supply replenishment device. In some specific embodiments, the first conductive portion 110 and the second conductive portion 120 can be integrally formed components, or components that are electrically connected to each other. The first conductive member 100 and the second conductive member 100 themselves can be components made of conductive materials, such as aluminum plates or copper plates, which can allow a relatively large power supply replenishment current to pass through and have a relatively small resistance at the same time; in some other embodiments, the first conductive member 100 and the second conductive member 100 can also be components covered with conductive layer materials, or components pre-embedded with conductive wires. The first conductive member 100 is electrically connected by contacting the bus bar 500, wherein the bus bar 500 is a component of the battery cell module; the second conductive member 100 is electrically connected by being clamped by an alligator clip 400, wherein the alligator clip 400 is a component of the power supply replenishment device, so that the power supply replenishment device and the bus bar 500 are electrically connected through the first conductive member 100 and the second conductive member 100, and the power supply replenishment device is used to replenish the battery cell module.

[0034] Using the technical solution of the above embodiment, by providing a conductive member 100 between the power supply replenishment device and the bus bar 500, and using the conductive member 100 to realize the electrical connection between the alligator clip 400 and the bus bar 500. Compared with the original power supply replenishment method of prying up the corner of the bus bar 500 with a steel sheet for the alligator clip 400 to clamp, the power supply replenishment tool of the present application does not damage the structure of the battery cell itself, eliminates the hidden danger that the steel sheet contacting the adjacent battery cell pole columns may cause short circuit of two battery cells, and can effectively avoid virtual connection. The power supply replenishment tool of the present application can be quickly, conveniently and safely applied to replenish the low-power battery cells at the module end.

[0035] Refer to Figure 1 , Figure 2 As shown, in some embodiments of the present application, the first conductive portion 110 has a plate-like structure, one side surface of the first conductive portion 110 is used to fit with the outer surface of the bus bar 500, and the second conductive portion 120 protrudes from the outer surface of the first conductive portion 110. In some specific embodiments, the first conductive portion 110 is an aluminum plate, and the aluminum plate has two opposite side surfaces, one of which is used to fit with the outer side surface of the bus bar 500 during charging, and the second conductive portion 120 is located on the other side surface. By making the second conductive portion 120 protrude from the surface of the first conductive portion 110, the alligator clip 400 can be smoothly clamped. In some embodiments, the second conductive portion 120 can be a convex column or a convex block or a convex strip or a convex plate. It should be noted that the width of the second conductive portion 120 is set to be suitable for the size of the alligator clip 400, so as to improve the firmness between the second conductive portion 120 and the alligator clip 400.

[0036] Using the technical solution of the above embodiment, by designing the first conductive part 110 in a plate-like structure, the outer surface of the first conductive part 110 is completely attached to the bus bar 500, so as to increase the current, reduce the loss, and improve the charging efficiency. By making the second charging part protrude from the first charging part, it is convenient to be clamped by the alligator clip 400 during charging.

[0037] Refer to Figure 1 、 Figure 2 As shown, in some embodiments of the present application, the second conductive part 120 is in a plate-like structure, and an included angle is formed between the second conductive part 120 and the first conductive part 110. In some embodiments, the second conductive part 120 is an aluminum plate. In some of these embodiments, the first conductive part 110 and the second conductive part 120 are a whole aluminum plate after being bent, and the bending angle is an acute angle. For example, after the aluminum plate is bent by 30 degrees, the bent part of the aluminum plate is the second conductive part 120, and the flat part of the aluminum plate is the first conductive part 110, where the second conductive part 120 is located at the edge position of the first conductive part 110. Specifically, there are two second conductive parts 120, which are respectively located at the two side edge positions of the first conductive part 110. In this way, by designing the second conductive part 120 in a plate-like structure, it is beneficial to increase the current, reduce the loss, and improve the charging efficiency. An included angle is formed between the second conductive part 120 and the first conductive part 110 to facilitate the alligator clip 400 to clamp the second conductive part 120.

[0038] Refer to Figure 1 、 Figure 2 As shown, in some embodiments of the present application, a relief groove 111 is provided on the first conductive part 110. It should be noted that a plurality of grooves are provided on the bus bar 500 at intervals. Refer to Figure 4 、 Figure 5 As shown, the bus bar 500 is provided with "ji"-shaped grooves at intervals and protrudes toward the outer side surface of the bus bar 500. By providing a relief groove 111 on the first conductive part 110, the grooves on the bus bar 500 are avoided, so that the inner side surface of the first conductive part 110 is completely attached to the outer side surface of the bus bar 500, which is beneficial to increase the current, reduce the loss, and improve the charging efficiency.

[0039] Refer to Figure 1 、 Figure 3 、 Figure 4As shown, in some embodiments of the present application, the repair tooling further includes a limiting rod 200. The limiting rod 200 is connected to the conductive member 100 and is used to keep the conductive member 100 connected to the bus bar 500. In some specific embodiments, the limiting rod 200 is connected to the position of the conductive member 100 corresponding to the avoidance groove 111. The limiting rod 200 is a strip-shaped aluminum rod with a small diameter and can be inserted into the groove of the bus bar 500 from one end of the groove. By inserting the limiting rod 200 into the groove of the bus bar 500, the first conductive part 110 is limited, preventing the first conductive part 110 from shifting during the charging process.

[0040] Referring to Figure 3 As shown, in some embodiments of the present application, a damping portion is provided on the limiting rod 200. The damping portion is located on the outer surface of the limiting rod 200. For example, uneven textures are provided on the outer surface of the limiting rod 200. By providing the damping portion, the friction between the limiting rod 200 and the inner wall of the groove of the bus bar 500 is increased, preventing the limiting rod 200 from moving in the groove of the bus bar 500.

[0041] Referring to Figure 3 As shown, in some embodiments of the present application, the damping portion is a sawtooth 210. Specifically, a plurality of sawteeth 210 are provided on one side of the damping portion along the length direction of the limiting rod 200. The cross-sectional shape of a single sawtooth 210 is triangular, that is, the upper end surface of the sawtooth 210 is an inclined surface. When the limiting rod 200 enters the groove of the bus bar 500 against the inclined surface, after the limiting rod 200 completely enters the groove of the bus bar 500, the sawteeth 210 can block the limiting rod 200 from exiting the groove of the bus bar 500.

[0042] Referring to Figure 1 As shown, in some embodiments of the present application, the repair tooling further includes a pressing member 300. The pressing member 300 is connected to the limiting rod 200 and / or the conductive member 100. By applying pressure to the limiting rod 200 and / or the conductive member 100 through the pressing member 300, the conductive member 100 is brought into abutment with the bus bar 500. The pressing member 300 applies pressure to the limiting rod 200 and / or the conductive member 100 in a direction perpendicular to the outer side surface of the bus bar 500, so that the conductive member 100 is brought into abutment with the bus bar 500, ensuring that the conductive member 100 is in full contact with the bus bar 500, increasing the current, reducing losses, and improving the charging efficiency.

[0043] Referring to Figure 1 、 Figure 4As shown, in some embodiments of the present application, the pressing member 300 includes a first clamping handle 310, a second clamping handle 320, and an elastic member 330. The first clamping handle 310 is connected to the conductive member 100; the second clamping handle 320 is connected to the limiting rod 200, and the conductive member 100 is rotatably connected to the limiting rod 200; the elastic member 330 is disposed between the first clamping handle and the second clamping handle and abuts against the first clamping handle and the second clamping handle. The elastic member 330 makes the conductive member 100 abut against the bus bar 500 by pressing against the first clamping handle 310, and the elastic member 330 makes the limiting rod 200 abut against the bus bar 500 by pressing against the second clamping handle 320. In some specific embodiments, a notch is provided at the avoidance groove 111 of the first conductive portion 110, and end shafts are respectively provided on opposite side walls of the notch. A shaft hole 220 is formed in the limiting rod 200, and the limiting rod 200 is rotatably connected to the first conductive portion 110 by inserting the two end shafts into the shaft hole 220 from both ends of the shaft hole 220. In some embodiments, the first clamping handle 310 is connected to the edge of the first conductive portion 110, the second clamping handle 320 is connected to one end of the limiting rod 200, the first clamping handle 310 and the second clamping handle 320 are oppositely arranged, and a spring shaft 321 is provided on the second clamping handle 320. The elastic member 330 is a torsion spring sleeved on the spring shaft 321. One end of the torsion spring abuts against the inner side of the first clamping handle 310, and the other end of the torsion spring abuts against the inner side of the second clamping handle 320. Under the compressive elastic force of the torsion spring, an acute angle is formed between the first clamping handle 310 and the second clamping handle 320. During charging, the limiting rod 200 is located in the groove of the bus bar 500, the first conductive portion 110 is located on the outer side of the bus bar 500, the torsion spring makes the second clamping handle 320 tend to move downward, so that the outer side of the limiting rod 200 abuts against the inner wall of the groove, and the limiting rod 200 is stably located in the groove of the bus bar 500 to prevent the limiting rod 200 from moving; at the same time, the torsion spring also makes the first clamping handle 310 tend to move upward, so that the inner side of the first conductive portion 110 abuts against the outer side wall of the bus bar 500, and the inner side of the first conductive portion 110 is completely attached to the outer side wall of the bus bar 500 to increase the current, reduce the loss, and improve the charging efficiency.

[0044] Working principle of the power compensation tooling of the present application:

[0045] Referring to Figure 4 、 Figure 5 、 Figure 6As shown, the busbar 500 is installed on the battery cell module. When the voltage of the battery cell is lower than the system average value, a power supply device is required to supply power to the battery cell module through the busbar 500. First, align and connect the power supply tooling with the busbar 500. While pressing the first clamping handle and the second clamping handle, the torsion spring is further compressed, so that the limiting rod 200 enters the groove of the busbar 500. After the limiting rod 200 completely enters the groove of the busbar 500, release the first clamping handle and the second clamping handle. The torsion spring rebounds partially but is still in a compressed state. Under the elastic force of the torsion spring, the inner side surface of the first conductive part 110 abuts against the outer side wall of the busbar 500, and the first conductive part 110 keeps a completely fitting state with the outer side wall of the busbar 500. At the same time, the groove of the busbar 500, the limiting rod 200, and the torsion spring together limit six degrees of freedom of the power supply tooling, so that the outer side of the limiting rod 200 abuts against the inner wall of the groove, and the limiting rod 200 is stably located in the groove of the busbar 500, which is beneficial to the stable clamping of the power supply tooling and also beneficial to the stable transmission of current. The power supply tooling of the present application has a simple structure, matches with the structure of the module busbar 500, is easy to operate, convenient to carry, easy to implement, and has a low cost.

[0046] In an embodiment of the present application, a power supply device is further provided, including the power supply tooling in the above embodiment.

[0047] It should be noted that the power supply device includes the power supply tooling, and thus includes all the above advantages of the power supply tooling, which will not be elaborated here.

[0048] In the description of the present application, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present application 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 thus should not be construed as a limitation to the present application.

[0049] In addition, the terms "first" and "second" are only used for descriptive purposes, and cannot be construed as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one of such features. In the description of the present application, "a plurality of" means at least two, such as two, three, etc., unless otherwise specifically defined.

[0050] In this application, unless otherwise clearly defined or limited, terms such as "installed", "connected", "linked", "fixed", etc. shall be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection, an electrical connection, or capable of communicating with each other; it can be directly connected, or indirectly connected through an intermediate medium, and can be the communication inside two components or the interaction relationship between two components, unless otherwise clearly limited. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0051] In this application, terms such as "one embodiment", "some embodiments", "example", "specific example", or "some examples", etc. mean that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of this application. In this specification, the schematic descriptions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples. In addition, without contradiction, those skilled in the art can combine and combine the different embodiments or examples described in this specification and the features of different embodiments or examples.

[0052] Although the embodiments of this application have been shown and described above, it can be understood that the above embodiments are exemplary and should not be construed as limitations to this application. Those of ordinary skill in the art can make changes, modifications, substitutions, and variations to the above embodiments within the scope of this application.

Claims

1. A power supply tool, characterized in that: The conductive member comprises a first conductive part and a second conductive part, the first conductive part is electrically connected to the second conductive part, the first conductive part is used to connect to a bus bar, and the second conductive part is used to connect to a power supplement device; The first conductive part is in a plate-like structure, one side of the first conductive part is used to fit with the outer surface of the bus bar, and the second conductive part is protrudingly arranged on the outer surface of the first conductive part; The second conductive portion is in a plate-shaped structure, and an angle is formed between the second conductive portion and the first conductive portion.

2. The power supply tool according to claim 1, characterized in that: The first conductive portion is provided with an avoidance groove.

3. The power supply tool according to claim 1 or 2, characterized in that: It also includes a limiting rod, which is connected to the conductive member and is used to keep the conductive member connected to the busbar.

4. The power supply tool according to claim 3, characterized in that: The limiting rod is provided with a damping part.

5. The power supply tool according to claim 4, characterized in that: The damping portion is a sawtooth.

6. The power supply tool according to claim 5, characterized in that: It also includes a pressure piece, which is connected to the limiting rod and / or the conductive piece and is used to make the conductive piece abut against the busbar.

7. The power supply tool according to claim 6, characterized in that: The pressure member comprises: A first clamping handle connected to the conductive member; A second clamping handle is connected to the limiting rod, and the conductive member is rotatably connected to the limiting rod; An elastic member is arranged between the first clamping handle and the second clamping handle, and abuts against the first clamping handle and the second clamping handle. The elastic member presses against the first clamping handle to make the conductive member abut against the bus, and the elastic member presses against the second clamping handle to make the limit rod abut against the bus.

8. A power supply device, characterized in that: It comprises the power replenishment tooling as described in any one of claims 1-7.

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