Fool-proof battery module

Abstract

The utility model aims at providing a prevent stupid battery module, including battery group and two connecting components, battery group includes a plurality of array distribution's battery, two connecting components are arranged respectively in two ends of battery group electrode, and connecting component includes support and a plurality of special connecting piece, two supports are arranged respectively in two ends of battery group, are equipped with a plurality of special grooves on the support, each special connecting piece is embedded in each special groove in adaptation, and each special connecting piece and each battery are connected in order to form series connection circuit. In this way, ensure that battery array distribution is stable, realize support prevent stupid assembly simultaneously, avoid battery group short circuit, and reduce polarity check process, improve assembly efficiency.

Description

Technical Field

[0001] This utility model relates to the technical field of battery manufacturing, and in particular to a foolproof battery module. Background Technology

[0002] In fields such as new energy, energy storage, and portable electronic devices, matrix-distributed battery packs are widely used because they can meet the requirements of high capacity and high voltage output. Their power output is achieved by connecting adjacent batteries in series using connectors. Specifically, the two ends of the connector need to be connected one-to-one with the positive and negative terminals of two adjacent batteries to form a complete current loop. Currently, the industry-standard connection method is to use a uniformly structured elongated connector and weld adjacent batteries together in series. This method has become the mainstream choice for matrix battery pack series connection due to its simple connector structure and low processing cost.

[0003] However, existing battery connectors have the following shortcomings in practical use: First, the connectors lack polarity differentiation design, and the positive and negative terminals of the batteries are arranged in a regular matrix. In assembly scenarios with multiple rows and columns, operators are easily confused by visual factors, leading to incorrect connection of the two ends of the connectors (such as connecting both ends of the connector to the positive terminal or both to the negative terminal), which can cause short circuits in the battery pack. This not only damages individual battery cells but may also cause overheating, fire, and other safety hazards. Second, to avoid the above-mentioned connection errors, operators need to perform an additional verification process of the polarity of the target battery's positive and negative terminals before welding each connector, significantly increasing assembly time and resulting in a significant decrease in production efficiency, making it difficult to meet the efficiency requirements of large-scale mass production. In view of this, the mistake-proof battery module of this application is proposed. Utility Model Content

[0004] The purpose of this invention is to overcome the shortcomings of the prior art and provide a foolproof battery module that prevents short circuits in the battery pack caused by operators connecting the wrong positive and negative terminals, and allows operators to assemble the battery quickly, thereby improving work efficiency.

[0005] The objective of this utility model is achieved through the following technical solution: A foolproof battery module, comprising: A battery pack, comprising a plurality of batteries arranged in an array; and Two connecting components are respectively disposed at both ends of the battery pack electrodes. Each connecting component includes a bracket and several irregularly shaped connecting pieces. The two brackets are respectively disposed at both ends of the battery pack. Several irregularly shaped grooves are opened on the brackets. Each irregularly shaped connecting piece is adapted to be embedded in each irregularly shaped groove. Each irregularly shaped connecting piece and each battery are sequentially connected end to end to form a series circuit.

[0006] Optionally, a plurality of positioning grooves are formed on one side of the bracket, each positioning groove being used to fix the battery, and the irregular groove is formed on the side of the bracket away from the positioning groove, and the positioning groove is connected to the irregular groove.

[0007] Optionally, the positive and negative terminals of the battery are respectively provided with a protrusion, and each end of the irregular connecting piece is provided with a through hole, and the protrusion passes through the through hole.

[0008] Optionally, the connecting assembly further includes a locking block screwed onto the protrusion, the locking block being used to lock the irregular connecting piece.

[0009] Optionally, the connecting assembly further includes a connecting plate disposed on each of the irregularly shaped connecting pieces, and each of the irregularly shaped connecting pieces is electrically connected to the connecting plate.

[0010] Optionally, the connecting plate has several through holes, and each of the protrusions passes through the irregular connecting piece and the connecting plate in sequence. The through holes are used to avoid the locking block.

[0011] Optionally, the connection assembly further includes terminals disposed on the connection plate, with the terminals on both connection plates located on the same side of the battery pack, and the two terminals electrically connected via a connection wire.

[0012] Optionally, the connecting plate is provided with a plurality of wires, one end of each wire being connected to each of the irregular connecting pieces, and the other end of each wire being connected to the terminal.

[0013] Compared with the prior art, the present invention has at least the following advantages: This invention's foolproof battery module features a one-to-one correspondence between irregularly shaped slots and connecting pieces, coupled with a differentiated shape layout. This forces the connecting pieces to embed in a preset state, avoiding alignment errors caused by visual confusion during multi-row, multi-column assembly, and eliminating the risk of short circuits in the battery pack from the source. This ensures a stable battery array distribution, achieves foolproof assembly of the bracket, prevents short circuits in the battery pack, reduces polarity verification steps, and improves assembly efficiency. Attached Figure Description

[0014] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1This is a schematic diagram of the structure of a foolproof battery module according to one embodiment of the present invention; Figure 2 This is a structural schematic diagram of the first bracket installation position according to one embodiment of the present invention; Figure 3 This is a structural schematic diagram of the second bracket installation position according to one embodiment of the present invention; Figure 4 This is an exploded structural diagram of a foolproof battery module according to one embodiment of the present invention. Figure 5 This is a structural schematic diagram of the gasket installation position according to one embodiment of the present invention; Figure 6 An exploded structural diagram showing the location of the irregular groove in one embodiment of this utility model; Figure 7 This is a schematic diagram of the structure of the first connecting plate according to one embodiment of the present invention; Figure 8 This is a schematic diagram of the structure of the second connecting plate according to one embodiment of the present invention.

[0016] Explanation of reference numerals in the attached figures: 1. Foolproof battery module; 10. Battery pack; 100. Battery; 101. First battery; 102. Second battery; 103. Third battery; 104. Fourth battery; 105. Fifth battery; 106. Sixth battery; 107. Protrusion; 20. Bracket; 201. Positioning groove; 202. Through hole; 204. First bracket; 2041. First irregular groove; 2042. Second irregular groove; 2043. Third irregular groove; 2044. Fourth irregular groove; 205. Second bracket ; 2051, Fifth irregular groove; 2052, Sixth irregular groove; 2053, Seventh irregular groove; 21, Irregular connecting piece; 211, First irregular piece; 212, Second irregular piece; 213, Third irregular piece; 214, Fourth irregular piece; 215, Fifth irregular piece; 216, Sixth irregular piece; 217, Seventh irregular piece; 22, Gasket; 23, Locking block; 241, First connecting plate; 242, Second connecting plate; 240, Wire; 243, Contact position; 26, Terminal. Detailed Implementation

[0017] To facilitate understanding of this utility model, a more comprehensive description will be provided below with reference to the accompanying drawings. The drawings illustrate preferred embodiments of this utility model.

[0018] In the description of the embodiments of this utility model, it should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing the embodiments of this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0019] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of embodiments of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0020] In this embodiment of the invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this embodiment of the invention according to the specific circumstances.

[0021] like Figures 1 to 8 As shown, in one embodiment, a foolproof battery module 1 includes a battery pack 10 and two connecting components. The two connecting components are respectively disposed at both ends of the electrodes of the battery pack 10. The connecting components include a bracket 20 and a plurality of irregularly shaped connecting pieces 21. The two brackets 20 are respectively disposed at both ends of the battery pack 10. A plurality of irregularly shaped grooves are opened on the brackets 20. Each irregularly shaped connecting piece 21 is adapted to be embedded in each irregularly shaped groove. Each irregularly shaped connecting piece 21 and each battery 100 are sequentially connected end to end to form a series circuit.

[0022] It should be noted that the battery pack 10 includes several batteries 100, which are arranged in an array with intervals, and the axial direction of each battery 100 is the same. Two connecting components are respectively disposed on two electrodes at both ends of the axial direction of the battery pack 10. The connecting components include a bracket 20 and several irregularly shaped connecting pieces 21. The two brackets 20 are respectively engaged with the two ends of the battery pack 10 to fix the batteries 100 in an array with intervals. Furthermore, several irregularly shaped grooves are opened on the side of the two brackets away from the battery pack 10, and the irregularly shaped connecting pieces 21 are respectively disposed in each irregularly shaped groove. It should be noted that the shapes of the irregularly shaped connecting pieces 21 are not the same, and the shapes of the corresponding irregularly shaped grooves are also not the same, so that an irregularly shaped connecting piece 21 can only be embedded in the corresponding irregularly shaped groove in a preset state (for example, a part of the structure on the irregularly shaped connecting piece 21 protrudes to the right). Each irregularly shaped slot extends to the ends of any two adjacent batteries 100. This allows each irregularly shaped connecting piece 21 to be electrically connected to each battery 100 sequentially end-to-end when embedded in its respective slot, forming a series circuit. During assembly, the operator first engages the two brackets 20 with the ends of the battery pack 10 to maintain the arrayed spacing of the batteries 100. Then, the operator inserts the corresponding irregularly shaped connecting piece 21 according to the shape of each slot. Because the shape and orientation of the slots are fixed, the connecting piece 21 electrically connects to the two batteries 100 at a fixed position after insertion. This avoids the risk of short circuits in multi-row assembly scenarios due to visual confusion leading to incorrect alignment of the connecting pieces, and also reduces the need for operators to verify the polarity of the target batteries 100, thus improving production assembly efficiency.

[0023] like Figures 4 to 6 As shown, in one embodiment, a plurality of positioning grooves 201 are provided on one side of the bracket 20, each positioning groove 201 is used to fix the battery 100, and the irregular groove is provided on the side of the bracket 20 away from the positioning groove 201, and the positioning groove 201 is connected to the irregular groove.

[0024] It should be noted that the side of the bracket 20 closest to the battery pack 10 has several positioning grooves 201 with the same cross-sectional shape as the battery 100, and the positioning grooves 201 are arranged in an array at intervals. When the two ends of each battery 100 are respectively engaged with the positioning grooves 201 on the two brackets 20, the two brackets 20 together fix the batteries 100 to maintain the arrayed distribution. Furthermore, each irregular groove is opened on the side of the two brackets 20 away from the battery 100, and the two ends of one irregular groove are respectively connected to the two positioning grooves 201; in this way, the two ends of an irregular connecting piece 21 embedded in the irregular groove can be electrically connected to the two batteries 100.

[0025] like Figures 1 to 5 As shown, in one embodiment, a protrusion 107 is provided on the positive and negative poles of the battery 100, and a through hole is opened on both ends of each irregular connecting piece 21, with the protrusion 107 passing through the through hole.

[0026] It should be noted that a protrusion 107 is welded to both the positive and negative terminals of the battery 100. The protrusion 107 is a conductive screw structure, and each end of the irregular connecting piece 21 has a through hole, the diameter of which is larger than the diameter of the protrusion 107, allowing the protrusion 107 to pass through the through hole. Furthermore, the connecting assembly also includes several gaskets 22. Both the gaskets 22 and the irregular connecting piece 21 are made of conductive metal. The inner diameter of the gasket 22 is larger than the diameter of the protrusion 107, allowing the gasket 22 to be fitted onto the protrusion 107. The thickness of the gasket 22 is greater than the distance between the inner bottom wall of the positioning groove 201 and the inner bottom wall of the irregular groove. Specifically, the positioning groove 201 and the irregular groove are connected by a circular hole, the diameter of which is smaller than the diameter of the battery 100. This allows the positioning groove 201 to engage and fix the battery 100, while simultaneously allowing the protrusion 107 on the end electrode of the battery 100 to extend into the irregular groove through the round hole. At this point, a gap inevitably appears between the positioning groove 201 and the irregular groove, i.e., there is a gap between the inner bottom wall of the positioning groove 201 and the inner bottom wall of the irregular groove. The thickness of the gasket 22 is greater than the gap between them, so that after one side of the gasket 22 abuts against the end face of the battery 100, its other side will extend into the irregular groove. Thus, when the perforation on the irregular connecting piece 21 is fitted onto the protrusion 107, its side closer to the battery 100 will abut against the side of the gasket 22 away from the battery 100, thereby increasing the contact area between the battery 100 and the irregular connecting piece 21, thereby improving the efficiency of current transmission.

[0027] like Figures 1 to 5 As shown, in one embodiment, the connecting assembly further includes a locking block 23, which is screwed onto the protrusion 107 and is used to lock the irregular connecting piece 21.

[0028] It should be noted that the locking block 23 is a nut structure. In one embodiment, the locking block 23 is a flange nut, which is screwed onto the protrusion 107, so that the locking block 23 can fix the irregular connecting piece 21 to the electrode of the battery 100. Furthermore, the end face of the axial end of the locking block 23 is provided with helical teeth, so that after the locking block 23 locks the irregular connecting piece 21, it can prevent the locking block 23 from loosening during later use due to shaking.

[0029] like Figure 1 , Figure 4 , Figure 5 , Figure 7 , Figure 8 As shown, in one embodiment, the connecting assembly further includes a connecting plate 24, which is disposed on each irregularly shaped connecting piece 21, and each irregularly shaped connecting piece 21 is electrically connected to the connecting plate 24.

[0030] It should be noted that the connecting plate 24 is a circuit board structure. The size of the connecting plate 24 can cover the end face of each battery 100 distributed in the array. The connecting plate 24 is fixedly connected to each irregularly shaped connecting piece 21 by several screws.

[0031] like Figure 1 , Figure 4 , Figure 5 , Figure 7 , Figure 8 As shown, in one embodiment, the connecting plate 24 has several through holes 202, and each protrusion 107 passes through the irregular connecting piece 21 and the connecting plate 24 in sequence. The through holes 202 are used for the anti-air lock block 23.

[0032] It should be noted that the connecting plate 24 has several through holes 202, and the number of through holes 202 is the same as the number of protrusions 107. When the connecting plate 24 is set on each irregular connecting piece 21, the through holes 202 and the axis of each protrusion 107 are coincident. The diameter of the through holes 202 is larger than the diameter of the locking block 23, so that when the locking block 23 is screwed on the protrusion 107, each through hole 202 corresponds to and avoids each locking block 23, so that the locking block 23 can directly lock the irregular connecting piece 21.

[0033] It should be noted that there are two connecting components. For ease of description, the two connecting components are defined as the first component and the second component, respectively. The two ends of the battery pack 10 along the axis are defined as the upper end and the lower end, respectively. The first component is located at the upper end of the battery pack 10, and the second component is located at the lower end of the battery pack 10. The bracket 20 and each irregularly shaped connecting piece 21 on the first component are defined as the first bracket 204, the first irregularly shaped piece 211, the second irregularly shaped piece 212, the third irregularly shaped piece 213, and the fourth irregularly shaped piece 214, respectively. The bracket 20 and each irregularly shaped connecting piece 21 on the second component are defined as the second bracket 205, the fifth irregularly shaped piece 215, the sixth irregularly shaped piece 216, and the seventh irregularly shaped piece 217, respectively. Correspondingly, the irregularly shaped grooves opened on the first bracket 204 are defined as the first irregularly shaped groove 2041, the second irregularly shaped groove 2042, the third irregularly shaped groove 2043, and the fourth irregularly shaped groove 2044, respectively. The irregular grooves are defined as the fifth irregular groove 2051, the sixth irregular groove 2052 and the seventh irregular groove 2053, respectively. The through holes 202 on the first bracket 204 are defined as the first through hole, the second through hole, the third through hole, the fourth through hole, the fifth through hole and the sixth through hole, respectively. The through holes 202 on the second bracket 205 are defined as the seventh through hole, the eighth through hole, the ninth through hole, the tenth through hole, the eleventh through hole and the twelfth through hole, respectively. The batteries 100 on the battery pack 10 are defined as the first battery 101, the second battery 102, the third battery 103, the fourth battery 104, the fifth battery 105 and the sixth battery 106, respectively.

[0034] In one embodiment, the first irregular groove 2041 communicates with the first through hole; the two ends of the second irregular groove 2042 communicate with the second and third through holes respectively; the two ends of the third irregular groove 2043 communicate with the fourth and fifth through holes respectively; the fourth irregular groove 2044 communicates with the sixth through hole; the two ends of the fifth irregular groove 2051 communicate with the seventh and eighth through holes respectively; the two ends of the sixth irregular groove 2052 communicate with the ninth and tenth through holes respectively; and the two ends of the seventh irregular groove 2053 communicate with the eleventh and twelfth through holes respectively. Further, the negative electrode of the first battery 101 passes through the first through hole and connects to the first irregular piece 211; the positive electrode of the first battery 101 passes through the seventh through hole and connects to one end of the fifth irregular piece 215; the negative electrode of the second battery 102 passes through the eighth through hole and connects to the other end of the fifth irregular piece 215. The positive electrode of battery 102 passes through the second through hole and is connected to one end of the second irregular piece 212. The negative electrode of battery 103 passes through the third through hole and is connected to the other end of the second irregular piece 212. The positive electrode of battery 103 passes through the ninth through hole and is connected to one end of the sixth irregular piece 216. The negative electrode of battery 104 passes through the tenth through hole and is connected to the other end of the sixth irregular piece 216. The positive electrode of battery 104 passes through the fourth through hole and is connected to one end of the third irregular piece 213. The negative electrode of battery 105 passes through the fifth through hole and is connected to the other end of the third irregular piece 213. The positive electrode of battery 105 passes through the eleventh through hole and is connected to one end of the seventh irregular piece 217. The negative electrode of battery 106 passes through the twelfth through hole and is connected to the other end of the seventh irregular piece 217. The positive electrode of battery 106 passes through the sixth through hole and is connected to one end of the fourth irregular piece 214. In this way, the negative terminal of the first battery 101 connected to the first irregular piece 211 is the negative terminal of the battery pack 10, and the positive terminal of the sixth battery 106 connected to the fourth irregular piece 214 is the positive terminal of the battery pack 10, so as to form a complete series circuit.

[0035] like Figure 1 , Figure 4 , Figure 5 , Figure 7 , Figure 8 As shown, in one embodiment, the connection assembly further includes a terminal 26, which is disposed on the connection plate 24. The terminals 26 on the two connection plates 24 are located on the same side of the battery pack 10, and the two terminals 26 are electrically connected through a connection line.

[0036] It should be noted that terminal 26 is a terminal used for wiring. The two terminals 26 are respectively located on the same side of the two connecting plates 24, so that the distance between them connected by the wire 240 is minimized. Furthermore, when the two terminals 26 are electrically connected by the wire 240, the electrical signals on the two connecting plates 24 can be interconnected. For ease of description, the two connecting plates 24 are defined as the first connecting plate 241 and the second connecting plate 242, respectively. The first connecting plate 241 is located at the upper end of the battery pack 10, and the first irregular piece 211, the second irregular piece 212, the third irregular piece 213 and the fourth irregular piece 214 are all electrically connected to the first connecting plate 241. The second connecting plate 242 is located at the lower end of the battery pack 10, and the fifth irregular piece 215, the sixth irregular piece 216 and the seventh irregular piece 217 are all electrically connected to the second connecting plate 242. Furthermore, the first connecting plate 241 is provided with a contact position 243 for connecting with the detection device. Thus, when the two terminals 26 are electrically connected through the wire 240, the electrical signal on the second connecting plate 242 can be transmitted to the first connecting plate 241 and electrically connected with the detection device through the contact position 243, so that the detection device can monitor each battery 100 of the battery pack 10 in real time.

[0037] like Figure 1 , Figure 4 , Figure 5 , Figure 7 , Figure 8 As shown, in one embodiment, a plurality of wires 240 are provided on the connecting plate 24, one end of each wire 240 is connected to each irregularly shaped connecting piece 21, and the other end of each wire 240 is connected to the terminal 26.

[0038] It should be noted that the connecting plate 24 is etched with several wires 240. One end of each wire 240 is connected to each irregularly shaped connecting piece 21. Since the connecting plate 24 is connected to each irregularly shaped connecting piece 21 by screws (i.e., the screws pass through the connecting plate 24 and are screwed onto the irregularly shaped connecting piece 21), one end of each wire 240 can be electrically connected to each irregularly shaped connecting piece 21 by screws. The other end of each wire 240 converges at the contact point 243 so that the welding port can be electrically connected to the testing equipment.

[0039] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A foolproof battery module, characterized in that, include: A battery pack, comprising a plurality of batteries arranged in an array; and Two connecting components are respectively disposed at both ends of the battery pack electrodes. Each connecting component includes a bracket and several irregularly shaped connecting pieces. The two brackets are respectively disposed at both ends of the battery pack. Several irregularly shaped grooves are opened on the brackets. Each irregularly shaped connecting piece is adapted to be embedded in each irregularly shaped groove. Each irregularly shaped connecting piece and each battery are sequentially connected end to end to form a series circuit.

2. The foolproof battery module according to claim 1, characterized in that, Several positioning grooves are formed on one side of the bracket, and each positioning groove is used to fix the battery. The irregular groove is formed on the side of the bracket away from the positioning groove, and the positioning groove is connected to the irregular groove.

3. The foolproof battery module according to claim 2, characterized in that, The battery has a protruding post at each of its positive and negative terminals, and each of the irregularly shaped connecting pieces has a through hole at both ends, with the protruding post passing through the through hole.

4. The foolproof battery module according to claim 3, characterized in that, The connecting assembly also includes a locking block, which is screwed onto the protrusion and is used to lock the irregular connecting piece.

5. The foolproof battery module according to claim 4, characterized in that, The connecting assembly further includes a connecting plate, which is disposed on each of the irregularly shaped connecting pieces, and each of the irregularly shaped connecting pieces is electrically connected to the connecting plate.

6. The foolproof battery module according to claim 5, characterized in that, The connecting plate has several through holes, and each of the protruding posts passes through the irregular connecting piece and the connecting plate in sequence. The through holes are used to avoid the locking block.

7. The foolproof battery module according to claim 6, characterized in that, The connection assembly further includes terminals disposed on the connection plate, with the terminals on both connection plates located on the same side of the battery pack, and the two terminals electrically connected by a connection wire.

8. The foolproof battery module according to claim 7, characterized in that, The connecting plate is provided with a plurality of wires, one end of each wire is connected to each of the irregular connecting pieces, and the other end of each wire is connected to the terminal.

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