Battery pack mounting point structure and vehicle

Abstract

The application relates to the technical field of battery pack mounting structure, and provides a battery pack mounting point structure and a vehicle. The battery pack mounting point structure comprises a fixing part arranged on a battery pack shell, a supporting part pre-fixed on the battery pack shell through the fixing part, and a fastener arranged through the supporting part; the fastener is sequentially arranged through the supporting part and the battery pack shell and is fastened on a mounting base body of the vehicle, so that the supporting part is supported between the battery pack shell and the fastener. The battery pack mounting point structure has the advantages that the fixing part is arranged to pre-fix the supporting part on the battery pack shell, when the battery pack is assembled, the connecting mode of adhesion or welding is not needed, the equipotential connection of the battery pack and the vehicle is ensured, the mounting point flatness is good, and the use reliability of the battery pack is improved.

Description

Technical Field

[0001] This application relates to the field of battery pack mounting structure technology, and in particular to a battery pack mounting point structure and vehicle. Background Technology

[0002] In vehicles currently equipped with battery packs, bushings are typically installed at the mounting points between the battery pack housing and the vehicle. When the bushing at the mounting point is located above the battery pack housing, the bolts at the mounting point pass through the bushing and the battery pack housing sequentially from top to bottom to connect with the vehicle. The bushing can provide a stable preload force to the bolts.

[0003] However, when the bushing is placed above the battery pack housing, the spiral rotation contacting the bushing during bolt tightening may cause the bushing to shift, which can easily lead to deformation of the battery pack mounting point components, affect the flatness of the mounting point, and is not conducive to improving the reliability of the battery pack. Utility Model Content

[0004] In view of this, this application aims to propose a battery pack mounting point structure to improve the reliability of battery pack use.

[0005] To achieve the above objectives, the technical solution of this application is implemented as follows:

[0006] A battery pack mounting point structure includes a fixing part disposed on a battery pack housing, a support part pre-fixed to the battery pack housing by the fixing part, and a fastener disposed through the support part;

[0007] The fastener passes sequentially through the support and the battery pack housing, and is fastened to the vehicle mounting base, thereby connecting the battery pack housing and the vehicle together.

[0008] Furthermore, the fixing part is detachably connected to the battery pack housing.

[0009] Furthermore, the fixing part includes a main body portion for pre-fixing the support portion, and a buckle provided on the main body portion;

[0010] The battery pack housing has a snap-fit ​​hole; the buckle is placed in the snap-fit ​​hole, which enables the fixing part to be snapped and connected to the battery pack housing.

[0011] Furthermore, the main body is provided with buckles on both sides, and the buckle holes correspond one-to-one with the buckles;

[0012] Each of the aforementioned buckles is U-shaped.

[0013] Furthermore, the buckle has a raised rib on the side facing away from the main body, and the buckle abuts against the wall of the buckle hole through the raised rib.

[0014] Furthermore, with the buckle inserted into the buckle hole, the free end of the buckle protrudes through the buckle hole.

[0015] Furthermore, the battery pack housing is provided with a mounting groove, and one end of the support is inserted into the mounting groove.

[0016] Furthermore, the fixing part includes at least two grippers, each of which can jointly clamp the support part.

[0017] Furthermore, the fixing part includes an annular base, each of the clamps is disposed on the annular base, and at least two of the clamps are arranged sequentially at intervals around the annular base.

[0018] Furthermore, each of the grippers has one end connected to the annular base, and the other end of each gripper is inclined inward relative to the end connected to the annular base, so as to grip the support portion.

[0019] Compared with related technologies, this application has the following advantages:

[0020] (1) The battery pack mounting point structure described in this application can be assembled by setting a fixing part to pre-fix the support part on the battery pack housing. When assembling the battery pack onto the vehicle, fasteners are used to pass through the support part and the battery pack housing in sequence to connect with the vehicle and complete the final battery pack fixing. The fixing part can prevent the support part from moving with the fastener due to contact with the fastener, so that the mounting point has a better flatness, which is beneficial to improving the reliability of the battery pack.

[0021] (2) The fixing part can be detachably connected to the battery pack housing, which facilitates the assembly and disassembly of the fixing part and is conducive to the modular design of the fixing part.

[0022] (3) By setting the main body and buckle, and setting the buckle hole on the battery pack housing, the fixing part can be connected to the battery pack housing when the buckle is placed in the buckle hole, making the installation convenient and quick.

[0023] (4) Buckles are provided on both sides of the main body, which can make the connection between the main body and the battery pack housing more secure after the fixing part is engaged with the battery pack housing. When the "U"-shaped buckle is installed, it can achieve a tight engagement with the wall of the buckle hole through its own deformation.

[0024] (5) A raised rib is provided, which makes sufficient contact with the wall of the locking hole, enhancing the friction between the buckle and the wall of the locking hole. It also makes it easier for the operator to confirm whether the assembly is in place by observing or touching the position of the raised rib. The free end of the buckle is passed through the locking hole. When disassembling the fixing part, the free end of the buckle can be pushed inward to engage, making it easy for the operator to disassemble.

[0025] (6) The mounting groove can position the support and restrict the support to a certain extent, thereby improving the shear resistance of the mounting point.

[0026] (7) At least two grippers can hold the support part relatively stably, which is beneficial to improving the seismic resistance of the support part after pre-fixation.

[0027] (8) The ring base is fixedly connected to the surrounding claws, which can form a closed force ring, improve the overall structure, and the push of each claw against the support is relatively uniform.

[0028] (9) The inward tilting design of the gripper can automatically clamp the support part by utilizing its own elastic deformation. When the support part is assembled into the fixing part, it can achieve self-clamping without other tools, taking into account both convenience and stability.

[0029] This application also proposes a vehicle in which the power battery is provided with the above-mentioned battery pack mounting point structure.

[0030] The vehicle described in this application, by setting the aforementioned battery pack mounting point structure, allows the support to be pre-fixed to the battery pack housing during assembly by setting a fixing part. When assembling the battery pack onto the vehicle, fasteners are then used to sequentially pass through the support part and the battery pack housing to connect with the vehicle, completing the final battery pack fixation. This eliminates the need for adhesive or welding connections, ensuring equipotential bonding between the battery pack and the vehicle, while also providing good flatness of the mounting point. This improves the reliability of the battery pack and, consequently, enhances the overall quality of the vehicle. Attached Figure Description

[0031] The accompanying drawings, which form part of this application, are used to provide a further understanding of this application. The illustrative embodiments and descriptions of this application are used to explain this application and do not constitute an undue limitation of this application. In the drawings:

[0032] Figure 1 This is a schematic diagram of the overall structure of the battery pack mounting point described in the embodiments of this application;

[0033] Figure 2 This is a schematic diagram of the overall structure of the fixing part described in the embodiment of this application;

[0034] Figure 3 This is a top view of the battery pack mounting point structure described in the embodiments of this application;

[0035] Figure 4 for Figure 3 Sectional view at point AA;

[0036] Explanation of reference numerals in the attached figures:

[0037] 1. Battery pack housing; 101. Clip hole; 102. Mounting slot; 103. Mounting hole;

[0038] 2. Fixing part;

[0039] 201. Main body; 2011. Gripper; 2012. Annular base; 202. Buckle; 2021. Rib; 203. Connector; 204. Reinforcing rib;

[0040] 3. Support section. Detailed Implementation

[0041] To make the technical solution and advantages of this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this application.

[0042] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other.

[0043] Furthermore, it should be noted that in the description of this application, if terms such as "upper," "lower," "inner," or "outer" appear, indicating orientation or positional relationship, these are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this application 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, and therefore should not be construed as a limitation on this application. In addition, if terms such as "first" or "second" appear, they are also used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0044] Furthermore, in the description of this application, unless otherwise expressly defined, the terms "installation," "connection," "joining," and "connector" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; 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; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application in light of the specific circumstances.

[0045] In this application, the terms "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of this application. In this specification, the illustrative expressions 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 suitable manner in one or more embodiments or examples.

[0046] The present application will now be described in detail through exemplary embodiments. However, it should be understood that, without further description, elements, structures, and features in one embodiment may be advantageously incorporated into other embodiments.

[0047] An embodiment of the first aspect of this application provides a battery pack mounting point structure.

[0048] In related technologies, for vehicles with battery packs, bushings are usually provided at the mounting points of the battery pack housing and the vehicle. When the bushing at the mounting point is located above the battery pack housing, the bolts at the mounting point pass through the bushing and the battery pack housing from top to bottom and are connected to the vehicle. The bushing can provide a stable preload force to the bolts.

[0049] However, when the bushing is placed above the battery pack housing, the spiral rotation contacting the bushing during bolt tightening may cause the bushing to shift, which can easily lead to deformation of the battery pack mounting point components, affect the flatness of the mounting point, and is not conducive to improving the reliability of the battery pack.

[0050] In view of this, in order to overcome the shortcomings of the related technology, the battery pack mounting point structure of this embodiment combines... Figures 1 to 4 In terms of content and overall design, it includes a fixing part 2 provided on the battery pack housing 1, a support part 3 pre-fixed to the battery pack housing 1 by the fixing part 2, and a fastener (not shown in the figure) provided through the support part 3.

[0051] The fasteners pass through the support part 3 and the battery pack housing 1 in sequence and are fastened to the vehicle mounting base, thus connecting the battery pack housing 1 and the vehicle together.

[0052] Therefore, by setting the fixing part 2, the support part 3 can be pre-fixed to the battery pack housing 1 when assembling the battery pack. When assembling the battery pack onto the vehicle, fasteners are then used to pass through the support part 3 and the battery pack housing 1 in sequence to connect with the vehicle, thus completing the final battery pack fixing. The fixing part can prevent the support part from shifting with the fasteners due to contact, and the mounting point has a better flatness, which is beneficial to improving the reliability of the battery pack.

[0053] Based on the above overview, specifically, the mounting base in this embodiment is the vehicle chassis. However, the mounting base can also be the vehicle body or other beam structures, ensuring a stable connection of the battery pack to the vehicle during operation. Because the fasteners pass through the support portion 3 and contact its end, they exert force on the support portion 3 during tightening. If the support portion 3 is fixed solely by the fasteners, it may cause misalignment, affecting the flatness of the mounting point. The fixing portion 2 reduces the external force exerted on the support portion 3 by the fasteners, thus helping to maintain the flatness of the mounting point. The flatness of the mounting point refers to the flatness of the surface of the support portion 3 supporting the fastener relative to the vehicle mounting base when the fastener is pressed against it. Figure 1 , Figure 3 and Figure 4 The battery pack housing 1 marked in the figure is only a part of the battery pack housing 1, and this part may be the side beam of the battery pack housing 1.

[0054] Continue to combine Figure 1 and Figure 2 As shown, in some exemplary embodiments, the fixing part 2 is detachably connected to the battery pack housing 1. This detachable connection facilitates the assembly and disassembly of the fixing part 2 and promotes its modular design. It is understood that the fixing part 2 can also be fixed to the battery pack housing 1 by means of, for example, adhesive bonding or welding, which also serves to fix the support part 3, but the ease of operation is less convenient.

[0055] Preferably, provided that the fixing part 2 is detachably connected to the battery pack housing 1, in some exemplary embodiments, see [reference needed]. Figures 1 to 4 As shown, the fixing part 2 includes a main body portion 201 for pre-fixing the support part 3, and a buckle 202 provided on the main body portion 201. The battery pack housing 1 has a locking hole 101. The buckle 202 is inserted into the locking hole 101, enabling the fixing part 2 to be snapped into the battery pack housing 1. By providing the main body portion 201 and the buckle 202, and by providing the locking hole 101 on the battery pack housing 1, the fixing part 2 can be snapped into the battery pack housing 1 when the buckle 202 is inserted into the locking hole 101, making installation convenient and quick.

[0056] It should be noted that other detachable connection methods, such as bolt connection or screw connection, can also be used between the fixing part 2 and the housing, without affecting the detachable function of the fixing part 2. These will not be described in detail here.

[0057] Furthermore, with the fixing part 2 having buckles 202, in some exemplary embodiments, buckles 202 are provided on both sides of the main body 201, with each buckle 202 corresponding to a corresponding hole 101, and each buckle 202 being U-shaped. Providing buckles 202 on both sides of the main body 201 makes the connection between the main body 201 and the battery pack housing 1 more secure after the fixing part 2 is engaged with the battery pack housing 1. The U-shaped buckles 202, during installation, deform to achieve a tighter engagement with the wall of the hole 101.

[0058] Preferably, a connector 203 can extend outward from the main body 201, and a buckle 202 can be disposed at the end of the connector 203 facing away from the main body 201. A reinforcing rib 204 is added between the connector 203 and the main body 201. This arrangement allows the buckle hole 101 to be located away from the mounting hole 103 on the battery pack housing 1 for fasteners to pass through, so that the buckle hole 101 and the mounting hole 103 are independently set. The buckle 202 has an arc-shaped cross-section in its extension direction, with the arc-shaped part facing outward.

[0059] With the buckle 202 in a "U" shape, in some exemplary embodiments, a rib 2021 is provided on the side of the buckle 202 facing away from the main body 201. The buckle 202 abuts against the wall of the locking hole 101 through the rib 2021. The rib 2021 ensures sufficient contact with the wall of the locking hole 101, enhancing the friction between the buckle 202 and the wall of the locking hole 101. It also allows the operator to confirm whether the buckle is properly assembled by observing or touching the position of the rib 2021. Specifically, the rib 2021 extends perpendicular to the central axis of the locking hole 101, and the rib 2021 may have a triangular cross-section.

[0060] Meanwhile, in some other exemplary embodiments, with the snap fastener 202 engaged in the latch hole 101, the free end of the snap fastener 202 extends out of the latch hole 101. When disassembling the fixing part 2, the free end of the snap fastener 202 can be pushed inwards to engage, facilitating disassembly by the operator. Specifically, the snap fastener 202 can be pressed from the outside using the index finger and thumb to facilitate the installation or removal of the fixing part 2.

[0061] Regarding the connection between the support part 3 and the battery pack housing 1, in some exemplary embodiments, the battery pack housing 1 is provided with a mounting groove 102, and one end of the support part 3 is inserted into the mounting groove 102. The mounting groove 102 can position the support part 3 and also provide a certain degree of constraint on the support part 3, thereby improving the shear resistance of the mounting point.

[0062] Specifically, the support part 3 can be configured as a cylindrical structure, with the mounting groove 102 and mounting hole 103 arranged coaxially. Bolts can be used as fasteners; after tightening, the nuts will press the support part 3 into the mounting groove 102 with their nuts facing downwards. The fit between the support part 3 and the mounting groove 102 can be an interference fit to improve the connection strength of the support part 3.

[0063] Given that the battery pack housing 1 has a mounting groove 102, in some exemplary embodiments, the fixing part 2 includes at least two grippers 2011, each gripper 2011 capable of clamping the support part 3 together. At least two grippers 2011 can stably hold the support part 3, which helps improve the shock resistance of the support part 3 after pre-fixation.

[0064] Based on the fixing part 2 including at least two grippers 2011, in some exemplary embodiments, the fixing part 2 includes an annular base 2012, with each gripper 2011 disposed on the annular base 2012, and at least two grippers 2011 arranged sequentially at intervals around the annular base 2012. The annular base 2012 and the surrounding grippers 2011 are fixedly connected, forming a closed force-bearing ring, improving the overall structural integrity, and the pushing force of each gripper 2011 against the support part 3 is relatively uniform. Specifically, the fixing part 2 can be installed against the surface of the battery pack housing 1, with good stability, and the fastener passes through the middle of the annular base 2012.

[0065] Continuing with the annular base 2012, in some exemplary embodiments, each gripper 2011 is connected to the annular base 2012 at one end, and the other end of each gripper 2011 is inclined inward relative to the end connected to the annular base 2012 to clamp the support part 3. The inward inclination design of the gripper 2011 can automatically clamp the support part 3 by utilizing its own elastic deformation. When the support part 3 is assembled into the fixing part 2, self-clamping can be achieved without other tools, taking into account both convenience and stability.

[0066] For the specific material of the support part 3, aluminum or steel can be used. Aluminum is lighter, while steel has higher strength. The choice can be made according to actual needs. The fixing part 2 is made of plastic.

[0067] It is worth noting that, regarding the battery pack mounting point structure of this embodiment, based on the above exemplary embodiments, in specific implementation, as a preferred embodiment, it is still composed of... Figures 1 to 4 As shown, it includes a fixing part 2 provided on the battery pack housing 1, a support part 3 pre-fixed to the battery pack housing 1 by the fixing part 2, and a bolt provided through the support part 3.

[0068] The fixing part 2 includes a main body part 201 for pre-fixing the support part 3, and buckles 202 provided on both sides of the main body part 201. The buckles 202 are U-shaped, and the buckles 202 have a protruding rib 2021 on the side facing away from the main body part 201.

[0069] The battery pack housing 1 has a card hole 101, a buckle 202 is inserted into the card hole 101, a protruding rib 2021 abuts against the wall of the card hole 101, and the free end of the buckle 202 protrudes out of the card hole 101.

[0070] The battery pack housing 1 is provided with a mounting groove 102 for inserting the support part 3, and the bottom of the mounting groove 102 is provided with mounting holes 103 for bolts to pass through.

[0071] The main body 201 includes an annular base 2012 and eight grippers 2011 fixed to the annular base 2012. Each gripper 2011 has one end connected to the annular base 2012, and the other end of each gripper 2011 is inclined inward relative to the end connected to the annular base 2012 to grip the support part 3.

[0072] The support part 3 is made of steel, and the fixing part 2 is made of PA66 (polyhexamethylene adipamide).

[0073] In the above preferred embodiments, the specific configuration and arrangement of the support part 3, the fixing part 2, the bolts, etc. can still be referred to the descriptions in the above exemplary embodiments. Furthermore, in this preferred embodiment, the beneficial effects brought about by the design of the support part 3, the fixing part 2, the bolts, etc. can also be referred to the descriptions in the above exemplary embodiments.

[0074] The battery pack mounting point structure in this embodiment adopts the above design, which ensures both equipotential bonding between the battery pack and the vehicle and good flatness of the mounting point, thus improving the reliability of the battery pack. Simultaneously, the fixing part 2 is provided to pre-fix the support part 3, ensuring that the support part 3 remains on the battery pack housing 1 before being finally secured by fasteners, making assembly more convenient.

[0075] An embodiment of the second aspect of this application provides a vehicle in which the power battery is provided with the battery pack mounting point structure of the first aspect embodiment described above.

[0076] In this embodiment, the vehicle, by setting the battery pack mounting point structure described above, allows the support part 3 to be pre-fixed to the battery pack housing 1 by setting the fixing part 2 during assembly. When assembling the battery pack onto the vehicle, fasteners are then used to pass through the support part 3 and the battery pack housing 1 in sequence to connect with the vehicle, completing the final battery pack fixation. This eliminates the need for adhesive or welding connections, ensuring equipotential bonding between the battery pack and the vehicle, while also providing good flatness of the mounting point. This improves the reliability of the battery pack and enhances the overall quality of the vehicle.

[0077] The above descriptions are merely some embodiments of this application and are not intended to limit this application. The technical features or structures in the foregoing different embodiments can be arbitrarily combined to form other specific technical solutions as needed. For those skilled in the art, this application can have various modifications and variations. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the scope of protection of the claims of this application.

Claims

1. A battery pack mounting point structure, characterized in that: It includes a fixing part provided on the battery pack housing, a support part pre-fixed to the battery pack housing by the fixing part, and a fastener provided through the support part; The fastener passes sequentially through the support and the battery pack housing, and is fastened to the vehicle mounting base, thereby connecting the battery pack housing and the vehicle together.

2. The battery pack mounting point structure according to claim 1, characterized in that: The fixing part is detachably connected to the battery pack housing.

3. The battery pack mounting point structure according to claim 2, characterized in that: The fixing part includes a main body portion for pre-fixing the support portion, and a buckle provided on the main body portion; The battery pack housing has a snap-fit ​​hole; the buckle is placed in the snap-fit ​​hole, which enables the fixing part to be snapped and connected to the battery pack housing.

4. The battery pack mounting point structure according to claim 3, characterized in that: The main body is provided with buckles on both sides, and the buckle holes correspond one-to-one with the buckles; Each of the aforementioned buckles is U-shaped.

5. The battery pack mounting point structure according to claim 4, characterized in that: The buckle has a raised rib on the side facing away from the main body, and the buckle abuts against the wall of the buckle hole through the raised rib; and / or, With the buckle engaged in the buckle hole, the free end of the buckle protrudes through the buckle hole.

6. The battery pack mounting point structure according to claim 1, characterized in that: The battery pack housing is provided with a mounting groove, and one end of the support is inserted into the mounting groove.

7. The battery pack mounting point structure according to claim 6, characterized in that: The fixing part includes at least two clamping claws, each of which can clamp the support part together.

8. The battery pack mounting point structure according to claim 7, characterized in that: The fixing part includes an annular base, each of the clamps is disposed on the annular base, and at least two of the clamps are arranged sequentially at intervals around the annular base.

9. The battery pack mounting point structure according to claim 8, characterized in that: Each of the grippers has one end connected to the annular base, and the other end of each gripper is inclined inward relative to the end connected to the annular base to clamp the support portion.

10. A vehicle, characterized in that: The vehicle's power battery is provided with a battery pack mounting point structure as described in any one of claims 1 to 9.

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