Integrated cover plate

Abstract

The utility model discloses integrated cover plate, including at least one row of fixing piece and spacing strip, the fixing piece is identical to the direction, and the space is formed in the fixing piece, and the spacing block is arranged in the space, and the spacing block and the spacing strip of the penetration one row of fixing piece constitute mechanical positioning together. The utility model discloses beneficial effect: the utility model discloses through at least one side spacing piece detachable connection, realizes the quick dismounting of battery group total positive busbar, battery group total negative busbar and battery group series connection busbar, and the split type design not only has facilitated the abnormal battery group return work, reduced the battery group scrappage caused by integrated cover plate damage caused by low -level problem, and moreover through the different combination mode of first fixing piece and second fixing piece, adapts different model size battery group module.

Description

Technical Field

[0001] This utility model relates to the field of battery manufacturing technology, and in particular to an integrated cover plate. Background Technology

[0002] The new energy vehicle market is growing rapidly, and the research and development speed of power batteries is also increasing rapidly. In the research and development and manufacturing process of power battery packs, many components require mold making. Among them, the mold making cycle of the integrated cover plate used for battery modules is relatively long, which often affects the overall progress during the delivery of small batch samples in the research and development stage. However, without the use of integrated cover plates for welding, it is not only impossible to position and fix the busbar, resulting in extremely low welding efficiency, but also the lack of insulation from the cover plate makes it easy for abnormalities such as short circuits in the battery pack to occur.

[0003] The information disclosed in this background section is intended only to enhance the understanding of the overall background of this utility model and should not be construed as an admission or in any way implying that the information constitutes prior art known to those skilled in the art. Utility Model Content

[0004] The technical problem to be solved by this utility model is to solve the problem of inconvenience in positioning and fixing the busbar.

[0005] This utility model solves the above-mentioned technical problems through the following technical means:

[0006] This utility model claims to protect an integrated cover plate, including at least one row of fixing members and a limiting strip. The fixing members are oriented in the same direction, and each fixing member forms a space. A limiting block is set in the space, and the limiting block and the limiting strip that runs through the row of fixing members together constitute a mechanical positioning.

[0007] This utility model enables quick assembly and disassembly of the battery pack's main positive busbar, main negative busbar, and series busbar through a detachable connection with at least one limiting member. The split design not only facilitates the rework of abnormal battery packs and reduces the scrapping of battery packs caused by damage to the integrated cover plate due to basic problems, but also adapts to battery pack modules of different models and sizes through different combinations of the first and second fixing members.

[0008] Preferably, the fastener includes a side frame and a top frame. The side frame has a U-shaped structure, and the top frame is mounted on one side of the U-shaped opening of the side frame. The top frame and the side frame together enclose a space.

[0009] The fastener is used to install the battery pack busbar.

[0010] Preferably, the fasteners located on both sides are defined as the first fasteners, and the upper frame of the first fasteners is flat.

[0011] After the main positive and main negative busbars are installed, a distance is reserved on the side to facilitate the exit of the main positive and main negative busbars.

[0012] Preferably, the fixing member located in the middle is defined as the second fixing member, and the upper frame of the second fixing member has an inverted U-shaped structure.

[0013] After the battery pack is installed in series with the busbar, a certain distance is reserved on the side to facilitate the lead-out of the data acquisition harness or FPC interface. Here, FPC refers to flexible circuit board.

[0014] Preferably, the top frame and side frame are integrally formed.

[0015] The top frame and side frame are integrally molded to ensure the overall strength of the second fastener.

[0016] Preferably, the connector includes a connecting groove and a connecting block. The side edges of adjacent fasteners are respectively provided with grooves, which fit together to form a connecting groove. The groove width in the middle of the connecting groove is smaller than the groove width on both sides of the connecting groove, and the connecting block is embedded in the connecting groove.

[0017] Connecting members are provided between adjacent second fixing members and between the first fixing member and the second fixing member to fix them together.

[0018] Preferably, the connecting groove is an I-shaped groove.

[0019] In practical applications, the connecting groove is not limited to an I-shaped groove; it can also be a waist-shaped groove that is narrow in the middle and wide at both ends. It is only necessary to ensure that the width of the groove in the middle is smaller than the width of the grooves on both sides. The connecting block and the connecting groove are adapted to ensure that the two adjacent second fixing parts are restricted by the connecting block and the connecting groove and do not separate when dragged along the length of the connecting groove.

[0020] Preferably, the connector also includes an anti-detachment buckle, and the anti-detachment buckle is provided at the opening of the connecting groove.

[0021] An anti-detachment buckle is provided at the opening of the connecting groove. When the connecting block is embedded in the connecting groove, the anti-detachment buckle locks the connecting block to prevent it from coming out of the connecting groove.

[0022] Preferably, the limiting component includes a limiting groove, a first upper limiting block, a first lower limiting block, and a limiting strip. The first upper limiting block is provided on the upper side of the inner wall of the space, and the first lower limiting block is provided on the lower side of the inner wall of the space opposite to the wire harness outlet. A row of fixing components extends through the limiting groove along the length direction. The limiting groove is connected to the space, and the limiting strip is inserted into the limiting groove.

[0023] When the limiting strip is inserted into the limiting groove, the side of the limiting strip will abut against the series busbar of the battery pack in the second space, thereby fixing the series busbar of the battery pack.

[0024] Preferably, a first upper limit block is provided at each of the four corners of the space.

[0025] The first upper limit block is preferably formed with rounded corners at the corner. In actual production, the first upper limit block is not limited to the corner, and of course, the shape is not limited to rounded corners. It can also be a protruding limit block formed on both sides of the inner wall of the second side frame. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the integrated cover plate in an embodiment of this utility model;

[0027] Figure 2 This is an exploded view of the integrated cover plate in an embodiment of this utility model;

[0028] Figure 3 This is a partial schematic diagram of the integrated cover plate in an embodiment of this utility model;

[0029] Figure 4 This is a schematic diagram of the structure of the first fixing member in an embodiment of this utility model;

[0030] Figure 5 This is a schematic diagram of the structure of the second fixing member in an embodiment of this utility model;

[0031] Figure 6 yes Figure 1 A magnified view of a portion of the image;

[0032] Figure 7 yes Figure 3 A magnified view of a portion of the image.

[0033] 1. First fixing component; 10. First side frame; 11. First top frame; 12. First upper limit block; 13. First lower limit block;

[0034] 2. Second fastener; 20. Second side frame; 21. Second top frame; 22. Second upper limit block; 23. Second lower limit block;

[0035] 3. Connecting block; 3a. Connecting groove; 30a. Anti-detachment buckle;

[0036] 4. Limiting strip; 4a. Limiting groove. Detailed Implementation

[0037] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below in conjunction with the embodiments of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0038] See Figures 1-3 This utility model claims to protect an integrated cover plate, including a first fixing member 1, a second fixing member 2, a connecting block 3, and a limiting strip 4.

[0039] There are two first fixing members 1, which are placed at both ends. Nine second fixing members 2 are arranged side by side between the two first fixing members 1, and the second fixing members 2 and the first fixing members 1 face the same direction.

[0040] See Figure 4 The two first fixing components 1 are used to install and position the main positive busbar and the main negative busbar of the battery pack, respectively. The main positive and main negative busbars of the battery pack are conductive busbars that connect the positive and negative terminals of multiple batteries after the battery module is assembled, and are used to transmit electrical energy and signals. Specifically, each of the two first fixing components 1 includes a first side frame 10, a first upper frame 11, a first upper limit block 12, and a first lower limit block 13. The first side frame 10 has a U-shaped cross-section, and the first upper frame 11 is attached to the upper surface of the first side frame 10. The first upper frame 11 is flat. The first upper frame 11 and the first side frame 10 together enclose a first space, which is used to accommodate the main positive busbar or the main negative busbar of the battery pack.

[0041] It is worth mentioning that since the first upper frame 11 is mounted on the upper surface of the first side frame 10, it does not obstruct the U-shaped opening of the first side frame 10, making it easy to remove or place the battery pack positive busbar or the battery pack negative busbar into the first space.

[0042] In order to locate the total positive busbar or the total negative busbar of the battery pack, a first upper limit block 12 is provided at each of the four corners of the upper side of the inner wall of the first space, and a first lower limit block 13 is provided on the lower side of the inner wall of the first space away from the first upper frame 11. The first upper limit block 12 and the first lower limit block 13 respectively abut against the upper and lower sides of the total positive busbar or the total negative busbar of the battery pack.

[0043] See Figure 5 The second fixing member 2 is used to install the battery pack series busbar. Specifically, the second fixing member 2 includes a second side frame 20, a second upper frame 21, a second upper limit block 22 and a second lower limit block 23. The second side frame 20 has a U-shaped cross-section. The upper surface of the third side frame is covered by the second upper frame 21, which has an inverted U-shaped structure. The second upper frame 21 and the second side frame 20 together enclose a second space for accommodating the battery pack series busbar.

[0044] It is worth mentioning that, since the second upper frame 21 is mounted on the upper surface of the second side frame 20, the second upper frame 21 is higher than the second side frame 20, and a data acquisition harness outlet is formed between the second side frame 20 and the second upper frame 21, which facilitates the lead-out of the data acquisition harness or FPC interface.

[0045] In order to position the battery pack series busbar, a second upper limit block 22 is provided at each of the four corners on the upper side of the inner wall of the second space, and a second lower limit block 23 is provided on the lower side of the inner wall of the second space away from the second upper frame 21. The second lower limit block 23 and the second upper limit block 22 respectively abut against the upper and lower sides of the battery pack series busbar.

[0046] The second upper limit block 22 and the first upper limit block 12 are preferably rounded at the corresponding corners. In practical applications, the second upper limit block 22 and the first upper limit block 12 are not limited to the corresponding corners, and can also be set on both sides of the inner wall of the corresponding space. Of course, the shape is not limited to rounded corners, such as square or strip, which will not be elaborated further.

[0047] In fact, the style and size of the first fixing member 1 and the second fixing member 2 are not limited to this, and can be adapted to the busbars that need to be positioned; moreover, the number of second fixing members 2 is not limited to nine. The number of second fixing members 2 is determined by the number of series busbars of the battery pack. It is only necessary to ensure that the second fixing members 2 and the first fixing members 1 are oriented in the same direction and that the first fixing members 1 and the second fixing members 2 form a row.

[0048] See Figures 1 to 7 Two grooves are provided on both sides of the first fixing member 1 and the second fixing member 2. When the first fixing member 1 and the second fixing member 2 form a row, the two adjacent grooves are joined together to form a connecting groove 3a. The connecting groove 3a has a groove structure with an "I" shaped cross section. The connecting groove 3a is embedded in the connecting block 3.

[0049] In practical applications, the connecting groove 3a is not limited to an I-shaped groove, but can also be a waist-shaped groove that is narrow in the middle and wide at both ends. It is only necessary to ensure that the width of the groove in the middle of the connecting groove 3a is smaller than the width of the grooves on both sides of the connecting groove 3a. The connecting block 3 is adapted to the connecting groove 3a. The purpose is to ensure that the two adjacent second fixing parts 2, the second fixing part 2 and the first fixing part 1 are restricted by the connecting block 3 and the connecting groove 3a, and are not separated from each other when dragged along the length of the connecting groove 3a.

[0050] Furthermore, to prevent the connecting groove 3a from detaching from the connecting block 3, an anti-detachment buckle 30a is provided on the inner wall of the connecting groove 3a. The anti-detachment buckle 30a is a safety device used to prevent objects or parts from accidentally falling off. It is usually used in scenarios requiring a stable connection. In the mechanical field, it is usually provided with adaptive anti-detachment protection using elastic materials or structures, such as springs or elastic wedges. This is existing technology and will not be described in detail here. When the connecting block 3 is embedded in the connecting groove 3a, the anti-detachment buckle 30a presses against the connecting block 3, preventing the connecting block 3 from detaching from the connecting groove 3a.

[0051] In fact, the first fixing member 1 and the second fixing member 2 are not limited to having two grooves on one side; they can also be one or four. The more grooves there are, the better the restraining effect on the first fixing member 1, the second fixing member 2 and the adjacent second fixing members 2. However, the greater the damage to the first fixing member 1 and the second fixing member 2 themselves, the more parts are generated, and the more troublesome the installation becomes. Therefore, it is preferable to have two grooves, which are placed along the width direction corresponding to the first fixing member 1 and the second fixing member 2 respectively, so as to ensure balanced force and more stable connection.

[0052] At this time, due to the action of the connecting block 3, the first fixing member 1 and the second fixing member 2 are restricted to each other along the length direction to form a row; furthermore, the lower side of the row of first fixing members 1 and second fixing members 2 are all through transverse grooves, and the transverse grooves are aligned to form a limiting groove 4a. The limiting groove 4a is connected to the first space and the second space. A limiting strip 4 is inserted into the limiting groove 4a. The limiting strip 4 abuts against the bottom of the battery pack's main positive busbar, the battery pack's main negative busbar and the battery pack's series busbar.

[0053] In fact, the function of the limiting strip 4 is reflected in at least three aspects. First, by passing through the limiting groove 4a in sequence, the first fixing member 1 and the second fixing member 2 are connected to each other. With the constraint of the connecting member along the length direction, a row of first fixing members 1 and second fixing members 2 form a whole.

[0054] Secondly, the limiting strip 4 abuts against the bottom of the battery pack's main positive bus, battery pack's main negative bus, and battery pack's series bus. This not only works in conjunction with the first upper limit block 12 and the first lower limit block 13 to restrict the corresponding battery pack's main positive bus and battery pack's main negative bus, thus fixing the battery pack's main positive bus and battery pack's main negative bus within the corresponding first fixing member 1 to prevent them from falling off; but also works in conjunction with the second upper limit block 22 and the second lower limit block 23 to restrict the battery pack's series bus, thus fixing the battery pack's series bus within the corresponding second fixing member 2 to prevent them from falling off.

[0055] Thirdly, by removing the limiting strip 4, the mechanical positioning constraint effect on the bottom side of the battery pack's total positive busbar, total negative busbar, and series busbar can be applied, thereby removing them from the first fixing member 1 or the second fixing member 2. Not only is it convenient to disassemble and assemble the busbar with the corresponding fixing member, but the fixing members can also be disassembled and assembled with each other, making it highly versatile and widely applicable.

[0056] The process of assembling the battery pack's main positive busbar, main negative busbar, and series busbar using this integrated cover plate is as follows:

[0057] S1. The main positive busbar and the main negative busbar of the battery pack are respectively placed into the first fixing member 1. Specifically, the main negative busbar of the battery pack is tilted into the first space from below the first fixing member 1, so that one side of the main negative busbar of the battery pack is inserted between the first upper limit block 12 and the first lower limit block 13 for positioning. The main positive busbar of the battery pack is similarly positioned and will not be described in detail.

[0058] S2. Insert the battery pack series busbar into the first fixing member 1. Refer to the installation of the battery pack main negative busbar, which will not be repeated here.

[0059] S3. Assemble the first fixing member 1 and the second fixing member 2. Arrange the first fixing member 1 and the second fixing member 2 in a row according to the different models and sizes of battery pack modules that need to be adapted, with the same orientation. At this time, the grooves are aligned to form a connecting groove 3a. Place the connecting block 3 into the connecting groove 3a. Due to the restriction of the anti-detachment buckle 30a, the connecting block 3 is not easy to come out, so as to ensure that the two adjacent second fixing members 2 and the first fixing member 1 are restricted by the connecting block 3 and the connecting groove 3a and are not separated from each other when dragged along the length direction of the connecting groove 3a.

[0060] S4. Insert the limiting strip 4 into the limiting groove 4a, so that a row of first fixing parts 1 and second fixing parts 2 form a whole, and the limiting strip 4 abuts against the bottom of the battery pack's main positive busbar, battery pack's main negative busbar and battery pack's series busbar, thereby achieving final positioning and fixing.

[0061] S5. When it is necessary to remove the battery pack main positive bus, battery pack main negative bus and battery pack series bus, pull out the limiting strip 4 to exert a mechanical positioning constraint on one side of the bottom of the battery pack main positive bus, battery pack main negative bus and battery pack series bus, thereby removing them from the first fixing member 1 or the second fixing member 2.

[0062] This utility model not only facilitates the rework of abnormal battery packs through its split design, reducing the scrapping of battery packs caused by damage to the integrated cover plate; but also adapts to battery pack modules of different models and sizes through different combinations of the first fixing member 1 and the second fixing member 2.

[0063] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. An integrated cover plate, characterized in that, It includes at least one row of fasteners and a limiting strip (4). The fasteners face the same direction and each fastener forms a space. A limiting block is set in the space. The limiting block and the limiting strip (4) that runs through the row of fasteners together constitute mechanical positioning.

2. The integrated cover plate according to claim 1, characterized in that, The fasteners include a side frame and a top frame. The side frame has a U-shaped structure, and the top frame is mounted on one side of the U-shaped opening of the side frame. The top frame and the side frame together enclose a space.

3. The integrated cover plate according to claim 2, characterized in that, The top border is flat.

4. The integrated cover plate according to claim 2, characterized in that, The top border has an inverted U-shaped structure.

5. The integrated cover plate according to claim 1, characterized in that, It also includes a connecting block (3), which locks adjacent fasteners together along the length direction.

6. The integrated cover plate according to claim 5, characterized in that, Grooves are provided on both sides of the fastener, and the grooves between adjacent fasteners are joined to form a connecting groove (3a). The width of the grooves at both ends of the connecting groove (3a) is greater than the width of the groove in the middle, and a connecting block (3) is embedded in the connecting groove (3a).

7. The integrated cover plate according to claim 6, characterized in that, An anti-detachment buckle (30a) is provided on the inner wall of the connecting groove (3a).

8. The integrated cover plate according to claim 2, characterized in that, An upper limit block is set on the upper side of the inner wall of the space, and a lower limit block is set on the lower side of the inner wall away from the side frame.

9. The integrated cover plate according to claim 8, characterized in that, Chamfers are installed at the four corners of the upper side of the inner wall of the space to form upper limit blocks.

10. The integrated cover plate according to claim 1, characterized in that, A limiting groove (4a) runs through the lower side of a row of fasteners along the length of the fasteners, and a limiting strip (4) is inserted into the limiting groove (4a).

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