An insulating support bracket for a battery pack

Abstract

The utility model relates to battery pack bracket technical field, and disclose a kind of insulation support bracket of battery pack, including electric core group, the bottom of electric core group is equipped with bracket main body, the both sides of bracket main body are equipped with extension frame sliding, the front end of bracket main body is equipped with adjusting assembly, adjusting assembly includes two bearing seats, two bearing seats are fixedly installed in front end surface, by setting adjusting assembly, rotating hexagonal adjusting block can drive the rotation of the threaded rod opposite in two sides screw thread, make two extension frames through screw hole block synchronous or opposite sliding, quickly adjust bracket width to adapt to the electric core group of different width, without replacing bolt, greatly simplify operation process, improve assembly efficiency;And extension frame slides, guide block slides along cross bar, dovetail strip slides along dovetail slot, ensure that moving is stable and not skew, ensure that the support of bracket to electric core group is always symmetrical and stable, avoid the support imbalance caused by adjustment.

Description

Technical Field

[0001] This utility model relates to the field of battery pack bracket technology, and in particular to an insulating support bracket for battery packs. Background Technology

[0002] In the field of energy storage and power batteries, battery packs are typically composed of multiple cells arranged in a preset manner. The cells are connected in series and parallel via electrical connection components to meet specific voltage and capacity requirements. During assembly, the length of such battery packs is often fixed by the preset number and arrangement of cells, and the cell length specifications are determined during the design phase based on the overall capacity requirements of the battery pack. Therefore, in practical applications, the length of the battery pack is usually a fixed value. However, due to differences in capacity requirements across different application scenarios, the width of the battery pack varies depending on the number of cells. To accommodate battery packs of different widths, existing battery pack support brackets often adopt a separate structure, consisting of two independent bracket units. The spacing between the two units is adjusted to accommodate cell combinations of different widths.

[0003] However, this type of separate bracket presents several challenges during use. First, operators must repeatedly adjust the relative positions of the two bracket units according to the actual width of the cell assembly. After the spacing is suitable, bolts of matching length must be selected from various specifications for tightening, severely restricting the assembly efficiency of the battery pack. Second, because the two bracket units are independently separated, their bottoms form a continuous horizontal gap below the cell assembly. This gap precisely covers the middle area of ​​the bottom of the cell assembly. The bottom of the cell assembly often contains electrode welding points, weak insulation areas, or potential electrolyte leakage risks. The gap completely exposes these critical areas, preventing them from receiving insulation coverage and physical protection from the bracket. This can lead to localized leakage or, in severe cases, short circuits and fires, posing a significant threat to the safe operation of the battery pack. Utility Model Content

[0004] The purpose of this utility model is to address the shortcomings of existing technologies by proposing an insulating support bracket for battery packs.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: an insulating support bracket for a battery pack, comprising a battery cell assembly, a bracket body at the bottom of the battery cell assembly, extension brackets slidably provided on both sides of the bracket body, and an adjustment component at the front end of the bracket body;

[0006] The adjustment assembly includes two bearing seats, which are fixedly installed on the front end surface. A drive rod is rotatably provided inside the bearing seat. Both sides of the drive rod extend to the outside of the bearing seat and are fixedly installed with threaded rods. The threads of the two threaded rods are opposite. A hexagonal adjustment block is fixedly installed in the middle of the drive rod. Threaded hole blocks are fixedly installed on the side surface of the two extension frames near the bearing seats. The two extension frames are threadedly connected to the two threaded rods respectively through the threaded hole blocks.

[0007] Preferably, a fixed base is fixedly installed on the side of the bracket body away from the adjustment component, and crossbars are fixedly connected to both sides of the fixed base. Guide blocks are fixedly installed on the ends of the two extension frames near the fixed base.

[0008] Preferably, the surface of each guide block is provided with through holes and slots that are adapted to the crossbar, and the two extension frames are slidably mounted on the surface of the crossbar via the guide blocks on the side away from the adjustment component.

[0009] Preferably, multiple dovetail slots are evenly provided on both sides of the bracket body, and multiple dovetail strips are evenly fixedly installed on the bottom side of the two extension frames near the bracket body, and the dovetail strips are slidably installed inside the dovetail slots.

[0010] Preferably, the upper end of the bracket body is provided with matching grooves on both sides, and the two extension frames are fixedly installed with compensation plates on the side near the bracket body. The compensation plates are located at the upper end of multiple dovetail strips and are adapted to the matching grooves.

[0011] Preferably, the bottom of the battery cell assembly is provided with an insulating frame, and the insulating frame has multiple embedding holes inside, in which the battery posts inside the battery cell assembly are respectively embedded and installed.

[0012] Preferably, the inner side of the insulating frame is provided with a plurality of energy-absorbing grooves, which are respectively located between a plurality of embedded holes, and the shape of the energy-absorbing grooves is elliptical arc.

[0013] Preferably, the bracket body, extension frame, and insulating frame are made of polyamide, and the insulation resistance is not less than 10 ohms. 14 Ω·cm, Shore hardness is 85D-95D.

[0014] In summary, this utility model has the following beneficial effects:

[0015] 1. By setting up the adjustment component, rotating the hexagonal adjustment block can drive the threaded rods with opposite threads on both sides to rotate, so that the two extension brackets slide synchronously towards or away from each other through the screw hole block, quickly adjusting the bracket width to adapt to battery cell packs of different widths without replacing bolts, greatly simplifying the operation process and improving assembly efficiency; and when the extension bracket slides, the guide block slides along the crossbar and the dovetail strip slides along the dovetail slot, ensuring smooth and non-tilting movement, ensuring that the bracket supports the battery cell pack symmetrically and stably at all times, and avoiding support imbalance caused by adjustment;

[0016] 2. By setting up a compensation plate and a fitting groove, the compensation plate is always fitted into the fitting groove during the sliding adjustment of the extension frame, accurately filling the gap between the bracket body and the extension frame, preventing the bottom of the battery pack from losing insulation protection due to gap exposure; at the same time, the bracket body, extension frame and insulation frame are made of materials with an insulation resistance of not less than 10 ohms. 14 The polyamide material with an Ω·cm rating significantly blocks the conductive path between the battery cell assembly and the external structure. Combined with the insulation frame that fully covers the bottom of the battery cell assembly, it significantly improves the overall insulation safety and avoids the risk of leakage or short circuit.

[0017] 3. By setting elliptical arc-shaped energy-absorbing grooves on the insulating frame, when the battery cell assembly is subjected to vibration or impact, the energy-absorbing grooves absorb energy through their own deformation, playing a buffering and shock-absorbing role. While ensuring the stable installation of the battery cell assembly, it further reduces the impact of external collisions on the internal structure of the battery cell assembly, reduces problems such as loosening of the electrode tabs and electrolyte leakage caused by long-term vibration of the battery cells, and extends the service life of the battery pack. At the same time, the energy-absorbing grooves are located between the embedding holes, which does not affect the stable installation of the battery cells in the embedding holes, taking into account both protection and support performance. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0019] Figure 2 This is a rear view structural schematic diagram of the bracket body and extension frame of this utility model;

[0020] Figure 3 This is a schematic diagram of the main structure of the bracket of this utility model;

[0021] Figure 4 This is a schematic diagram of the exploded disassembly structure of the extension frame of this utility model;

[0022] Figure 5 This is a schematic diagram of the bottom structure of the battery cell assembly of this utility model.

[0023] Figure label:

[0024] 1. Battery cell assembly;

[0025] 21. Bracket body; 22. Extension frame;

[0026] 3. Adjustment assembly; 301. Bearing housing; 302. Drive rod; 303. Threaded rod; 304. Hexagonal adjusting block; 305. Screw hole block;

[0027] 41. Fixed base; 42. Crossbar; 43. Guide block;

[0028] 51. Dovetail slot; 52. Dovetail strip; 53. Compensating plate; 54. Mating groove;

[0029] 61. Insulating frame; 62. Embedded hole; 63. Energy absorption groove. Detailed Implementation

[0030] To make the technical means, creative features, and achieved objectives and effects of this utility model easier to understand, the present utility model is further described below with reference to specific embodiments and accompanying drawings. However, the following embodiments are merely preferred embodiments of this utility model and not all of them. Other embodiments obtained by those skilled in the art based on the embodiments described in the implementation plan without creative effort are all within the protection scope of this utility model.

[0031] The specific embodiments of this utility model are described below with reference to the accompanying drawings:

[0032] Example: Reference Figures 1-5 An insulating support bracket for a battery pack includes a battery cell pack 1, a bracket body 21 at the bottom of the battery cell pack 1, extension brackets 22 slidably provided on both sides of the bracket body 21, and an adjustment component 3 at the front end of the bracket body 21.

[0033] The adjusting assembly 3 includes two bearing seats 301, which are fixedly installed on the front end surface. A drive rod 302 is rotatably provided inside the bearing seat 301. Both sides of the drive rod 302 extend to the outside of the bearing seat 301 and are fixedly installed with threaded rods 303. The threads of the two threaded rods 303 are opposite. A hexagonal adjusting block 304 is fixedly installed in the middle of the drive rod 302. A screw hole block 305 is fixedly installed on the side surface of the two extension brackets 22 near the bearing seat 301. The two extension brackets 22 are threadedly connected to the two threaded rods 303 respectively through the screw hole blocks 305.

[0034] Specifically: In actual use, the bearing housing 301 provides a stable rotation fulcrum for the drive rod 302, ensuring that the drive rod 302 and the threaded rods 303 on both sides always maintain coaxial movement during rotation. At the same time, the drive rod 302 transmits the rotational force of the hexagonal adjusting block 304 to the threaded rods 303 on both sides, realizing synchronous power transmission. The threaded rod 303 is designed with opposite threads on both sides, which can drive the two extension frames 22 to move in opposite directions or away from each other during rotation through threaded engagement, providing direct power for width adjustment.

[0035] The hexagonal adjusting block 304 is designed to accommodate tools such as wrenches, facilitating the application of torque by operators. By rotating the hexagonal adjusting block 304, the drive rod 302 rotates within the bearing seat 301, causing the threaded rods 303 on both sides to rotate synchronously. The two extension brackets 22 slide in opposite directions or away from each other along the bracket body 21 through the threaded engagement of the screw hole block 305 and the threaded rods 303. This allows for quick adjustment of the overall width of the bracket to accommodate battery cell assemblies 1 of different widths, eliminating the need to replace bolts or other fasteners. This simplifies the adjustment process while ensuring its stability and precision, thus improving the bracket's flexibility and assembly efficiency.

[0036] A fixed base 41 is fixedly installed on the side of the bracket body 21 away from the adjustment component 3. A crossbar 42 is fixedly connected to both sides of the fixed base 41. A guide block 43 is fixedly installed on the end of each of the two extension brackets 22 near the fixed base 41. A hole or slot adapted to the crossbar 42 is opened through the surface of the guide block 43. The side of the two extension brackets 22 away from the adjustment component 3 is slidably installed on the surface of the crossbar 42 through the guide block 43.

[0037] Multiple dovetail slots 51 are evenly provided on both sides of the bracket body 21. Multiple dovetail strips 52 are evenly fixedly installed on the bottom side of the two extension frames 22 near the bracket body 21. The dovetail strips 52 are slidably installed inside the dovetail slots 51. Fitting grooves 54 are provided on both sides of the upper end of the bracket body 21. Compensation plates 53 are fixedly installed on the side of the two extension frames 22 near the bracket body 21. The compensation plates 53 are located at the upper end of the multiple dovetail strips 52 and are adapted to the fitting grooves 54.

[0038] Specifically: In actual use, the crossbar 42 is set and cooperates with the slot on the surface of the guide block 43 to form a sliding guide structure on the side of the extension frame 22 away from the adjustment component 3, which restricts the movement trajectory of the extension frame 22 and prevents it from shifting laterally during sliding. The dovetail slot 51 is set and cooperates with the dovetail strip 52 to provide guidance for the sliding of the extension frame 22 near the bracket body 21. The anti-detachment characteristics of the dovetail structure are used to prevent the extension frame 22 from separating from the bracket body 21 during sliding, while ensuring the straightness of the movement direction. The fitting groove 54 provides fitting space for the compensation plate 53, ensuring that the compensation plate 53 always has sufficient embedding depth when the extension frame 22 slides. The compensation plate 53 is set and cooperates with the fitting groove 54 to fill the gap between the bracket body 21 and the extension frame 22, preventing the bottom of the battery cell assembly 1 from being exposed due to the gap.

[0039] The bottom of the battery cell assembly 1 is provided with an insulating frame 61. Multiple embedding holes 62 are formed inside the insulating frame 61. The battery columns inside the battery cell assembly 1 are embedded in the embedding holes 62. Multiple energy-absorbing grooves 63 are formed on the inner side of the insulating frame 61, located between the multiple embedding holes 62. The energy-absorbing grooves 63 are elliptical in shape. The bracket body 21, extension frame 22, and insulating frame 61 are made of polyamide, and the insulation resistance is not less than 10 ohms. 14 Ω·cm, Shore hardness is 85D-95D.

[0040] Specifically: In actual use, the insulating frame 61 provides bottom support and insulation for the battery cell assembly 1. The polyamide material it uses can effectively block the conductive path between the battery cell assembly 1 and the bracket body 21 and the extension frame 22. The energy-absorbing groove 63, because it is located between multiple embedding holes 62 and is elliptical in shape, can absorb energy through its own deformation when the battery cell assembly 1 is subjected to vibration or impact, thus playing a buffering and shock-absorbing role. This device not only ensures the stability of the battery cell assembly 1 installation, but also strengthens the insulation protection and impact resistance, thereby improving the safety and reliability of the battery pack during use.

[0041] The working principle of this utility model is as follows: In actual use, firstly, according to the determined number of battery cell groups 1, a suitable insulating frame 61 is selected, and then the battery cell group 1 is placed on the insulating frame 61, so that the battery posts inside the battery cell group 1 are respectively embedded in the embedding holes 62, thus achieving the initial positioning of the battery cell group 1. When it is necessary to adapt to battery cell groups 1 of different widths, according to the size of the insulating frame 61, the hexagonal adjusting block 304 of the adjusting component 3 is rotated by a wrench, which drives the drive rod 302 and the threaded rod 303 with opposite threads on both sides to rotate synchronously in the bearing seat 301. Since the two extension frames 22 are threadedly connected to the two threaded rods 303 respectively through the screw hole block 305, under the rotation of the threaded rod 303, the two extension frames 22 slide in opposite directions or in opposite directions along the bracket body 21, thereby adjusting the overall width of the bracket to match the width of the insulating frame 61;

[0042] During this process, the end of the extension frame 22 away from the adjustment component 3 slides along the crossbar 42 via the guide block 43. At the same time, the dovetail strip 52 at the bottom of the extension frame 22 slides along the dovetail slot 51 of the bracket body 21, ensuring the stability and straightness of the extension frame 22 during the sliding process and avoiding skewing. When the extension frame 22 slides to adjust, when the extension frame 22 slides to the outside of the bracket body 21 to increase the bracket width, the compensation plate 53 moves synchronously with the extension frame 22. The part of it close to the bracket body 21 is still embedded in the fitting groove 54 and has not completely detached from the groove. When the extension frame 22 slides to the inside of the bracket body 21 to reduce the bracket width, the compensation plate 53 goes deeper into the fitting groove 54 with the extension frame 22, increasing the fitting length and always forming a continuous covering structure. This completely eliminates the lateral gap that may be generated between the bracket body 21 and the extension frame 22 due to relative sliding, ensuring that the bottom of the battery cell assembly 1 is always within the insulation coverage of the bracket and preventing the bottom of the battery cell assembly 1 from contacting the external structure through the gap.

[0043] When the battery cell assembly 1 is subjected to vibration or impact during use, the elliptical arc-shaped energy-absorbing grooves 63 located between the embedding holes 62 on the insulating frame 61 will deform, absorbing part of the vibration energy and playing a buffering role, reducing the impact of vibration on the battery cell assembly 1. At the same time, the polyamide material used in the bracket body 21, extension frame 22 and insulating frame 61 has excellent insulation properties, which can effectively block the current path between the battery cell assembly 1 and the external structure, ensuring the overall insulation effect.

[0044] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0045] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. An insulating support bracket for a battery pack, comprising a battery cell assembly (1), wherein the bottom of the battery cell assembly (1) is provided with a bracket body (21), characterized in that: The bracket body (21) has extension frames (22) slidably provided on both sides, and the bracket body (21) has an adjustment component (3) at the front end; The adjustment assembly (3) includes two bearing seats (301), which are fixedly installed on the front end surface. A drive rod (302) is rotatably provided inside the bearing seat (301). Both sides of the drive rod (302) extend to the outside of the bearing seat (301) and are fixedly installed with threaded rods (303). The threads of the two threaded rods (303) are opposite. A hexagonal adjustment block (304) is fixedly installed in the middle of the drive rod (302). A screw hole block (305) is fixedly installed on the side surface of the two extension brackets (22) near the bearing seat (301). The two extension brackets (22) are threadedly connected to the two threaded rods (303) respectively through the screw hole block (305).

2. The insulating support bracket for a battery pack according to claim 1, characterized in that: A fixed seat (41) is fixedly installed on the side of the bracket body (21) away from the adjustment component (3). A crossbar (42) is fixedly connected to both sides of the fixed seat (41). A guide block (43) is fixedly installed on the end of each of the two extension frames (22) near the fixed seat (41).

3. The insulating support bracket for a battery pack according to claim 2, characterized in that: The guide block (43) has through holes and slots that fit the crossbar (42) on its surface. The two extension frames (22) are slidably mounted on the surface of the crossbar (42) on the side away from the adjustment component (3) via the guide block (43).

4. The insulating support bracket for a battery pack according to claim 1, characterized in that: The bracket body (21) has multiple dovetail slots (51) evenly provided on both sides. The two extension brackets (22) have multiple dovetail strips (52) evenly fixedly installed on the bottom side of the side close to the bracket body (21). The dovetail strips (52) are slidably installed inside the dovetail slots (51).

5. The insulating support bracket for a battery pack according to claim 4, characterized in that: The upper end of the bracket body (21) is provided with fitting grooves (54) on both sides. The two extension frames (22) are fixedly installed with compensation plates (53) on the side near the bracket body (21). The compensation plates (53) are located at the upper end of multiple dovetail strips (52) and are adapted to the fitting grooves (54).

6. The insulating support bracket for a battery pack according to claim 1, characterized in that: The bottom of the battery cell assembly (1) is provided with an insulating frame (61), and the interior of the insulating frame (61) is provided with multiple embedding holes (62). The battery columns inside the battery cell assembly (1) are respectively embedded in the embedding holes (62).

7. The insulating support bracket for a battery pack according to claim 6, characterized in that: The inner side of the insulating frame (61) is provided with a plurality of energy-absorbing grooves (63), which are located between a plurality of embedded holes (62) and the shape of the energy-absorbing grooves (63) is elliptical arc.

8. The insulating support bracket for a battery pack according to claim 7, characterized in that: The bracket body (21), extension frame (22), and insulating frame (61) are made of polyamide, and the insulation resistance is not less than 10 Ω. 14 Ω·cm, Shore hardness is 85D-95D.

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