Auxiliary structure for polarity detection of energy storage product and battery module

Abstract

The utility model provides an energy storage product polarity detection auxiliary structure and a battery module, the energy storage product polarity detection auxiliary structure comprises a detection plate, and the detection plate is provided with a plurality of detection holes; wherein the detection plate is used for being attached to the end face of the battery module, and each detection hole is used for being arranged corresponding to an area, used for placing an anode of a battery cell, in the battery module; or each detection hole is arranged corresponding to an area for placing a negative electrode of a battery cell in the battery module. The auxiliary structure for polarity detection of the energy storage product and the battery module provided by the utility model aim to solve the problem that the polarity of a battery cell is easy to assemble mistakenly in the module assembling process of the energy storage product in the prior art, and can solve the problem that the polarity of the battery cell is difficult to self-detect, reduce the polarity stacking error rate and further reduce the repair rate of the product manufacturing process.

Description

Technical Field

[0001] The utility model relates to the technical field of energy storage products, and in particular to a polarity detection auxiliary structure and a battery module of an energy storage product. Background Art

[0002] Current energy storage products are all applied to battery modules, which have multiple cells. The installation of cells has certain rules, and the polarity of each cell must be installed correctly to ensure the normal use of the battery module. Common polarity self-checking methods include manual self-checking and equipment self-checking. Manual self-checking leads to high fatigue of workers on the one hand, and cannot guarantee the accuracy of self-checking on the other hand; equipment self-checking can ensure the accuracy of polarity, but it still causes a cumbersome rework process, which is not conducive to cost reduction. Utility Model Content

[0003] The utility model provides an energy storage product polarity detection auxiliary structure and a battery module, aiming to solve the problem that the polarity of the battery cell is easily assembled incorrectly during the module assembly process of the energy storage product in the traditional technology.

[0004] In view of the problems existing in the prior art, the embodiment of the utility model provides an auxiliary structure for polarity detection of energy storage products, including a detection plate, wherein a plurality of detection holes are provided on the detection plate;

[0005] Wherein, the detection plate is used to be attached to the end surface of the battery module, and each of the detection holes is used to correspond to the area setting in the battery module for accommodating the positive electrode of the discharge cell; or, each of the detection holes is used to correspond to the area setting in the battery module for accommodating the negative electrode of the discharge cell.

[0006] According to an energy storage product polarity detection auxiliary structure provided by the utility model, the color of the side of the detection plate away from the battery module is different from the color of the positive pole of the battery cell; or the color of the side of the detection plate away from the battery module is different from the color of the negative pole of the battery cell.

[0007] According to an energy storage product polarity detection auxiliary structure provided by the utility model, two adjacent battery cells on a battery module form a battery cell group, and a detection blind hole is provided on a side of the detection plate close to the battery module. The detection hole is used to correspond to one battery cell in the battery cell group, and the detection blind hole is used to correspond to another battery cell in the battery cell group.

[0008] According to an auxiliary structure for polarity detection of energy storage products provided by the utility model, the detection hole and the detection blind hole adjacent to each other in the width direction of the detection plate are used to correspond to one battery cell group.

[0009] According to an energy storage product polarity detection auxiliary structure provided by the utility model, a profiling groove is provided on the bottom wall of the detection blind hole, and the profiling groove is used to match the end face of the battery core.

[0010] According to an auxiliary structure for polarity detection of energy storage products provided by the utility model, a plurality of profiling holes are also provided on the detection plate, and each of the profiling holes is used to match the surface shape of the battery module.

[0011] According to an energy storage product polarity detection auxiliary structure provided by the utility model, the detection board includes a mica detection board, a polypropylene detection board, an acrylic detection board or a bakelite detection board.

[0012] The utility model also provides a battery module, comprising:

[0013] A battery module body, wherein a plurality of battery cells are arranged on the battery module body, wherein the axial direction of each battery cell extends along the height direction of the battery module body, and the two ends of each battery cell in the axial direction form a positive electrode and a negative electrode respectively, and the positive electrode and the negative electrode have different colors; and

[0014] An energy storage product polarity detection auxiliary structure, wherein the energy storage product polarity detection auxiliary structure is the energy storage product polarity detection auxiliary structure as described in any one of the above items, and the detection plate is arranged on the upper end surface of the battery module.

[0015] According to a battery module provided by the utility model, two battery cells adjacent to each other in the width direction of the battery module body form a battery cell group, the positive pole of one battery cell is arranged close to the detection board, and the negative pole of the other battery cell is arranged close to the detection board.

[0016] According to a battery module provided by the utility model, each of the battery cell groups is arranged at intervals in the length direction of the battery module body, and the polarities of two adjacent battery cells in two adjacent battery cell groups are opposite to each other.

[0017] The energy storage product polarity detection auxiliary structure provided by the utility model can eliminate interference from other components in the battery module by attaching the detection plate to the upper end surface of the battery module and setting the detection holes corresponding to the positive electrode positions or negative electrode positions on the upper end surface of the battery module, so as to conveniently judge whether the polarity of each electrode in the battery module is correctly installed, thereby improving the self-detection efficiency and accuracy of the polarity of the energy storage product. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the present invention or the prior art, a brief introduction will be given below to the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0019] Figure 1It is a structural schematic diagram of a first embodiment of a battery module provided by the utility model;

[0020] Figure 2 It is a structural schematic diagram of a second embodiment of a battery module provided by the utility model.

[0021] Figure numerals: 1. battery module; 11. auxiliary structure for polarity detection of energy storage products; 111. detection plate; 112. detection hole; 113. detection blind hole; 114. profiling groove; 115. profiling hole; 12. battery module body; 13. battery cell. DETAILED DESCRIPTION

[0022] The following is a further detailed description of the implementation methods of the utility model in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the utility model, but cannot be used to limit the scope of the utility model. In the description of the embodiments of the utility model, it should be noted that the orientation or positional relationship indicated by the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc. is based on the orientation or positional relationship shown in the accompanying drawings, which is only for the convenience of describing the embodiments of the utility model 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 cannot be understood as a limitation on the embodiments of the utility model. In addition, the terms "first", "second", and "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0023] In the description of the embodiments of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense, for example, it 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. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments of the present utility model can be understood according to specific circumstances.

[0024] In the embodiments of the present invention, unless otherwise clearly specified and limited, the first feature being "above" or "below" the second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "above" and "above" the second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. The first feature being "below", "below" and "below" the second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0025] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model embodiment. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0026] In order to make the purpose, technical solution and advantages of the utility model clearer, the technical solution of the utility model will be described clearly and completely in conjunction with the drawings in the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0027] Combine the following Figure 1-Figure 2 The utility model describes the energy storage product polarity detection auxiliary structure 11 and the battery module 1 provided by the utility model.

[0028] In view of the fact that it is difficult to manually detect the polarity of energy storage products in traditional technologies and the accuracy rate is low, please refer to Figure 1 The utility model provides an energy storage product polarity detection auxiliary structure 11, including a detection plate 111, and a plurality of detection holes 112 are opened on the detection plate 111. When performing detection, the detection plate 111 is used to be attached to the end surface of the battery module 1, and each detection hole 112 is used to correspond to the area setting for accommodating the positive electrode of the discharge cell 13 in the battery module 1; or each of the detection holes 112 is used to correspond to the area setting for accommodating the negative electrode of the discharge cell 13 in the battery module 1.

[0029] It should be noted that the two ends of the battery cell 13 form a positive electrode and a negative electrode respectively, and the installation of each battery cell 13 in the battery module 1 has a certain rule. In the technical solution provided by the present utility model, the battery cell 13 is vertically arranged in the battery module 1, and the axial direction of the battery cell 13 extends along the height direction of the battery module 1. That is, when each battery cell 13 is correctly installed and in place, the positive electrode or negative electrode of each battery cell 13 faces the outside of the battery module 1. That is, on the end face of the battery module 1, certain positions correspond to the installation of the positive electrode of the battery cell 13, and certain positions correspond to the installation of the negative electrode of the battery cell 13. Generally, when all the battery cells 13 are installed in place, if the battery cell at each positive electrode position of the end face of the battery module 1 is installed correctly, then the corresponding battery cell 13 at each negative electrode position is also installed correctly. Specifically, when the detection board 111 is used to detect the polarity of the battery cell 13, the detection board 111 is placed on the end face of the battery module 1, and the detection hole 112 corresponds to the area setting in the battery module 1 for accommodating the positive electrode of the battery cell 13. At this time, the detection board 111 can cover other structures of the battery module 1, and only the end face of the battery cell 13 is observed from the detection hole 112. If the detection holes 112 correspond to the positive electrodes of the battery cells 13, it proves that all the battery cells 13 are installed correctly. Similarly, if the detection hole 112 corresponds to the area setting in the battery module 1 for accommodating the negative electrodes of the battery cells 13, at this time, the detection board 111 can cover other structures of the battery module 1, and only the end face of the battery cell 13 is observed from the detection hole 112. If the detection holes 112 correspond to the negative electrodes of the battery cells 13, it proves that all the battery cells 13 are installed correctly. In summary, by setting the detection board 111, the interference of other components in the battery module 1 can be eliminated, and it is convenient to judge whether the polarity of each electrode in the battery module 1 is installed correctly, which can improve the self-inspection efficiency and accuracy of the polarity of the energy storage product.

[0030] Furthermore, there are structural differences between the positive and negative electrodes of some battery cells 13, so it is relatively easy to determine the positive and negative electrodes of the battery cells 13. However, the structural differences between the positive and negative electrodes of some battery cells 13 are relatively small, and they are distinguished only by the color of one of the components, so it is difficult to accurately distinguish the positive and negative electrodes of the battery cells 13 one by one. Considering that there is only a slight color difference between the positive and negative electrodes of the battery cells 13, in the technical solution provided by the present utility model, if the detection hole 112 is used to correspond to the positive electrode of the battery cell 13, the color of the side of the detection plate 111 away from the battery module 1 is different from the color of the positive electrode of the battery cell 13; if the detection hole 112 is used to correspond to the negative electrode of the battery cell 13, the color of the side of the detection plate 111 away from the battery module 1 is different from the color of the negative electrode of the battery cell 13. By setting the color of the detection plate 111 and the positive or negative electrode of the battery cell 13 to be different, the color of the end face of the battery cell 13 can be easily observed, and then it can be accurately determined whether the position of the battery cell 13 is installed correctly. It should be noted that the colors of both sides of the detection board 111 can be set to be the same, or the color can be printed only on the side of the detection board 111 away from the battery cell 13. For the convenience of detection, the color of the side of the detection board 111 away from the battery cell 13 can be set to be different from the color of the positive electrode or the negative electrode of the battery cell 13. For example, in an optional embodiment, a certain component of the positive electrode of the battery cell 13 is set to yellow, and a certain component of the negative electrode is set to black, and the side of the detection board 111 away from the battery cell 13 can be printed in green.

[0031] As mentioned above, when all the battery cells 13 are installed in place, if the positive pole of each battery cell 13 is installed in the correct position, then the corresponding negative pole of each battery cell 13 is installed in the correct position. Specifically, two adjacent battery cells 13 on the battery module 1 form a battery cell group. If the position of one of the battery cells 13 in the battery cell group is installed correctly, it proves that the position of the other battery cell 13 is also installed correctly. Generally, if the positive pole of one of the battery cells 13 in the battery cell group faces outward, the negative pole of the other battery cell 13 faces outward. Since the detection plate 111 will fit the end face of the battery module 1, in order to prevent the detection plate 111 from squeezing the end face of the battery cell 13, please refer to Figure 2 A detection blind hole 113 is provided on one side of the detection plate 111 close to the battery module 1, the detection hole 112 is used to correspond to one battery cell 13 in the battery cell group, and the detection blind hole 113 is used to correspond to another battery cell 13 in the battery cell group. The detection blind hole 113 is configured to be groove-shaped, which can accommodate the end face of the battery cell 13 to a certain extent, and prevent the battery cell 13 from being squeezed and damaged by the detection plate 111. Furthermore, the end face of the battery cell 13 may also have other structures, such as pole piece protrusions. In order to prevent damage to these fine structures, a contoured groove 114 is provided on the bottom wall of the detection blind hole 113. The contoured groove 114 is used to adapt to the end face of the battery cell 13, and can stably cooperate with the end face of the battery cell 13, which neither causes damage to the end face of the battery cell 13 nor can it play a positioning effect.

[0032] As mentioned above, generally two adjacent battery cells 13 form a battery cell group, or other numbers of battery cells 13 may form a battery cell group. Limited by the installation structure, if the polarity of a battery cell 13 in a battery cell group is installed correctly, the polarity of the battery cell 13 is also installed correctly. In an optional embodiment, the adjacent detection holes 112 and detection blind holes 113 in the width direction of the detection plate 111 are used to correspond to a battery cell group.

[0033] Furthermore, the end face of the battery module 1 may have other structures. In order to prevent extrusion damage and to further position the detection plate 111, a plurality of contour holes 115 are provided on the detection plate 111. Each contour hole 115 is used to adapt to the surface shape of the battery module 1.

[0034] It should be noted that the detection board 111 can be a mica detection board 111, a polypropylene detection board 111, an acrylic detection board 111 or a bakelite detection board 111, etc. The thickness and length of the board can be adjusted according to actual needs, and the present invention does not limit this.

[0035] On the basis of the above auxiliary structure, the utility model further provides a battery module 1, comprising: a battery module body 12, on which a plurality of battery cells 13 are arranged, the axial direction of each battery cell 13 extends along the height direction of the battery module 1, and the two ends of each battery cell 13 in the axial direction form a positive electrode and a negative electrode respectively, and the colors of the positive electrode and the negative electrode are different; and an energy storage product polarity detection auxiliary structure 11, wherein a detection plate 111 is arranged on the upper end surface of the battery module 1, and a detection hole 112 corresponds to the end surface of each battery cell 13. It should be noted that the colors of the positive electrode and the negative electrode can be completely different or partially different, and the utility model does not limit this.

[0036] Furthermore, two battery cells 13 adjacent to each other in the width direction of the battery module body 12 form a battery cell group, the positive pole of one battery cell 13 is arranged close to the detection plate 111, and the negative pole of the other battery cell 13 is arranged close to the detection plate 111. Correspondingly, at two adjacent positions of the detection plate 111 in the width direction, one is provided with a detection hole 112, and the other is provided with a detection blind hole 113. The detection hole 112 and the detection blind hole 113 may correspond to the positive pole or the negative pole, respectively. Furthermore, each battery cell group is arranged at intervals in the length direction of the battery module body 12, and the polarities of the two adjacent battery cells 13 in the two adjacent battery cell groups are opposite. Corresponding to the detection hole 112, the detection holes 112 are distributed in the form of a sine curve. It should be noted that the setting form of the detection hole 112 can be based on the setting form of the positive pole and the negative pole in the battery module 1, and the utility model provides only one embodiment.

[0037] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the utility model.

Claims

1. An energy storage product polarity detection auxiliary structure, characterized in that: It comprises a detection plate, on which a plurality of detection holes are formed; Among them, the detection plate is used to be attached to the end face of the battery module, and each of the detection holes is used to correspond to the area setting in the battery module for accommodating the positive electrode of the discharge cell; or, each of the detection holes is used to correspond to the area setting in the battery module for accommodating the negative electrode of the discharge cell; two adjacent battery cells on the battery module form a battery cell group, and a detection blind hole is provided on the side of the detection plate close to the battery module, and the detection hole is used to correspond to one battery cell in the battery cell group, and the detection blind hole is used to correspond to another battery cell in the battery cell group.

2. The energy storage product polarity detection auxiliary structure according to claim 1, characterized in that: The color of the side of the detection plate facing away from the battery module is different from the color of the positive electrode of the battery cell; or the color of the side of the detection plate facing away from the battery module is different from the color of the negative electrode of the battery cell.

3. The energy storage product polarity detection auxiliary structure according to claim 1, characterized in that: The detection holes and the detection blind holes adjacent to each other in the width direction of the detection plate are used to correspond to one battery cell group.

4. The energy storage product polarity detection auxiliary structure according to claim 1, characterized in that: A profiling groove is provided on the bottom wall of the detection blind hole, and the profiling groove is used to match the end face of the battery core.

5. The energy storage product polarity detection auxiliary structure according to claim 1, characterized in that: The detection plate is also provided with a plurality of profiling holes, each of which is used to match the surface shape of the battery module.

6. The energy storage product polarity detection auxiliary structure according to claim 1, characterized in that: The detection board includes a mica detection board, a polypropylene detection board, an acrylic detection board or a bakelite detection board.

7. A battery module, characterized in that: include: A battery module body, wherein a plurality of battery cells are arranged on the battery module body, wherein the axial direction of each battery cell extends along the height direction of the battery module body, and the two ends of each battery cell in the axial direction form a positive electrode and a negative electrode respectively, and the positive electrode and the negative electrode have different colors; and An energy storage product polarity detection auxiliary structure, wherein the energy storage product polarity detection auxiliary structure is the energy storage product polarity detection auxiliary structure as claimed in any one of claims 1 to 6, and the detection plate is arranged on the upper end surface of the battery module.

8. The battery module according to claim 7, characterized in that: Two battery cells adjacent to each other in the width direction of the battery module body form a battery cell group, the positive electrode of one battery cell is arranged close to the detection board, and the negative electrode of the other battery cell is arranged close to the detection board.

9. The battery module according to claim 8, characterized in that: The battery cell groups are arranged at intervals in the length direction of the battery module body, and the polarities of two adjacent battery cells in two adjacent battery cell groups are arranged in opposite directions.

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