Battery frame

Abstract

The utility model relates to a battery frame which comprises at least two battery mounting plates and at least one set of supporting assembly, the battery mounting plates are sequentially arranged at intervals in the vertical direction, and one set of supporting assembly is arranged between every two adjacent battery mounting plates; the supporting assembly comprises first supporting pieces which are in one-to-one correspondence with four corners of the battery mounting plates, the first supporting pieces are fixedly connected with the adjacent battery mounting plates below the first supporting pieces, and the first supporting pieces are in bolted connection with the adjacent battery mounting plates above the first supporting pieces; the battery mounting plate and the supporting assembly are matched to form a frame body; the transverse edge and the longitudinal edge of the corner of the battery mounting plate are each provided with at least one limiting groove, and the upper end of the first supporting piece is provided with limiting blocks which are in one-to-one correspondence with the limiting grooves and are in limiting fit with the limiting grooves. The upper layer and the lower layer are reliably connected, the impact resistance is strong, and the safety of the battery pack can be well ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of new energy auxiliary installation equipment, in particular to a battery frame. Background Art

[0002] With the rapid development of battery technology, new energy engineering machinery equipped with batteries, such as new energy loaders, are gradually occupying the market. Because the overall weight of the battery pack is often more than 2 tons, and the limited space often means that the battery pack can only be stacked. In order to improve the versatility, flexibility of use, processing efficiency, etc. of the battery frame, the battery frame will also be stacked. The existing stacked battery frame usually uses bolts to lock the upper and lower layers. However, engineering vehicles need to accelerate and brake frequently during work, the work site is bumpy, and the equipment itself shakes the mud. All of these reasons will cause the upper and lower layers of the battery frame to overcome the impact of movement in all directions. The clamping force provided by tightening the bolts to counteract the relative displacement trend between the upper and lower battery frames can easily cause abnormal loosening of the bolts, which in turn causes problems such as shearing of the bolts and damage to the battery pack.

[0003] A 35kWh battery pack costs approximately 40,000 RMB, while a 350kWh pack costs 400,000 RMB. A damaged battery pack can easily cost new energy equipment manufacturers tens of thousands of RMB in losses, potentially forcing some companies to limit or even halt production. Utility Model Content

[0004] The purpose of the utility model is to provide a battery frame with a stacked structure, the upper and lower layers of which are reliably connected, have strong impact resistance, and can well ensure the safety of the battery pack.

[0005] To achieve the above-mentioned purpose, the utility model discloses a battery frame, which includes at least two battery mounting plates and at least one set of support assemblies, the battery mounting plates are arranged in sequence at intervals in the vertical direction, and a set of support assemblies is arranged between the two adjacent battery mounting plates; the support assembly includes a first support member corresponding to the four corners of the battery mounting plate, the first support member is fixedly connected to the battery mounting plate adjacent to it below, and the first support member is bolted to the battery mounting plate adjacent to it above; the battery mounting plates and the support assemblies cooperate to form a frame body; at least one limiting groove is provided on the horizontal and vertical sides of the corners of the battery mounting plates, and the upper end of the first support member is provided with a limiting block corresponding to the limiting groove and limiting cooperation.

[0006] With the above arrangement, the limit blocks and limit slots cooperate to effectively limit the horizontal displacement of the upper battery mounting plate. The lower end of the first support member is fixedly connected to the battery mounting plate below it and bolted to the battery mounting plate above it. This bolt is not subject to shear forces in the horizontal direction, making it less likely to loosen or become damaged. This ensures a reliable connection between the upper and lower layers of the frame, strong impact resistance, and excellent safety for the battery pack.

[0007] Preferably, the limit block is integrally formed or welded to the first support member, so as to ensure the stability of the installation of the limit block relative to the first support member.

[0008] Preferably, the first support member includes a support column and a support plate, the support plate being fixedly connected to the upper end of the support column; the support plate having a first support section and a second support section perpendicular to each other, each of the first support section and the second support section being connected to at least one stop block. With this arrangement, the first support member has a simple structure and is easy to manufacture, and the provision of the support plate facilitates the provision of the stop block.

[0009] Preferably, both the first and second support segments are provided with mounting openings, the stopper is welded into the mounting openings, and the upper end of the stopper extends out of the mounting openings. This arrangement ensures that the stopper is accurately positioned on the first support member, and also increases the contact area between the stopper and the first support member, allowing the stopper to be welded more securely.

[0010] Preferably, the installation opening is provided with a bell mouth for the limit block to enter. Such an arrangement can facilitate the installation and welding of the limit block.

[0011] Preferably, the limit block is provided with a slope for easy insertion into the limit slot. This arrangement can facilitate the connection of the first support member with the battery mounting plate above it.

[0012] Preferably, at least one second support member is provided between any two adjacent battery mounting plates, the second support member being located in the middle of the battery mounting plates; the second support member being connected to the battery mounting plate above it and abutting the battery mounting plate below it; or, the second support member abuts the battery mounting plate above it and is connected to the battery mounting plate below it; or, the second support member is connected to the battery mounting plate adjacent to it. When the battery mounting plates are long or wide, the second support member provided in the middle can effectively support the battery mounting plates and prevent the battery mounting plates from sinking under pressure.

[0013] Preferably, the second support member includes a crossbeam and at least one leg, wherein the crossbeam is connected above the leg. The second support member thus provided has a simple structure and is easy to manufacture.

[0014] Preferably, the frame body also includes several sealing plates, which are detachably connected to the frame body. The sealing plates form a protective cover covering the frame body, or the sealing plates cooperate with the frame body to form a protective cover. With this arrangement, compared to a battery frame with side panels, when the battery pack is installed into the frame body of the utility model, the operator can visually observe whether the battery pack mounting surface is in close contact. If the battery pack mounting surface is uneven, it can be discovered and corrected in time. After the battery pack is installed, the sealing plates are installed to form a protective cover, which can provide good protection for the battery pack.

[0015] Preferably, a backing plate is provided on the bottom surface of the lowest battery mounting plate. This backing plate isolates the lowest battery mounting plate from the mounting surface, preventing the entire battery mounting plate from contacting the mounting surface. This eliminates problems such as abnormal battery frame connection caused by an uneven or deformed mounting surface, twisting and deformation of the battery frame after tightening, and damage to the battery pack.

[0016] The utility model has the following beneficial effects:

[0017] This utility model effectively limits the horizontal displacement of the upper battery mounting plate by cooperating with the limit block and the limit slot. The lower end of the first support member is fixedly connected to the battery mounting plate below it and is bolted to the battery mounting plate above it. The bolt is not subject to shear forces in the horizontal direction, making it less likely to loosen or become damaged. This ensures a reliable connection between the upper and lower layers of the frame, strong impact resistance, and excellent safety for the battery pack. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a diagram of the usage state of the utility model.

[0019] Figure 2 It is a schematic diagram of the utility model.

[0020] Figure 3 This is a schematic diagram from another perspective of the present invention.

[0021] Figure 4 for Figure 3 Enlarged schematic diagram of part A in the middle.

[0022] Figure 5 Schematic diagram of the battery mounting plate.

[0023] Figure 6 is a schematic diagram of the first support member.

[0024] Figure 7 is a schematic diagram of the second support member.

[0025] Description of main components symbols:

[0026] Battery mounting plate 10, limiting slot 11;

[0027] First support member 20, limit block 21, slope 22, support column 23, support plate 24, first support section 25, second support section 26, mounting opening 27, bell mouth 28;

[0028] Second support member 30, crossbeam 31, support leg 32;

[0029] Pad 40;

[0030] Battery pack 50. DETAILED DESCRIPTION

[0031] In order to make the purpose, technical solutions and advantages of the present invention more clear, the present invention is further described in detail below with reference to the accompanying drawings and embodiments.

[0032] like Figure 1-7 As shown, the present invention discloses a battery frame comprising at least two battery mounting plates 10, at least one set of support assemblies, and at least one pair of second support members 30. The battery mounting plates 10 are spaced apart vertically, with the surfaces of the battery mounting plates 10 being parallel to each other. The battery mounting plates 10 are used to mount battery packs 50. The battery mounting plates 10 are preferably obtained by laser blanking to ensure rigidity and the positioning accuracy of the mounting holes, etc., to reduce processing errors.

[0033] A support assembly and at least one pair of second supports 30 are provided between each of the two adjacent battery mounting plates 10. The support assembly includes first supports 20 corresponding one-to-one to the four corners of the battery mounting plates 10, and second supports are provided in the middle of the battery mounting plates 10. That is, the first supports 20 support the upper battery mounting plates 10 at the corners, while the second supports 30 support the upper battery mounting plates 10 in the middle. When the length and / or width of the battery mounting plates 10 are large, the second supports 30 can effectively prevent the upper battery mounting plates 10 from being deformed by the weight of the battery packs 50. Of course, when the thickness of the battery mounting plates 10 is sufficient or the length and width of the battery mounting plates 10 are not large, the second supports may not be provided.

[0034] The first support member 20 is fixedly connected to the battery mounting plate 10 adjacent to it below, for example, by welding. The first support member 20 is connected to the battery mounting plate 10 adjacent to it above by bolts, and the battery mounting plate 10 and the support assembly cooperate to form a frame body. At least one limiting groove 11 is provided on the horizontal and vertical sides of the corners of the battery mounting plate 10, and a limiting block 21 corresponding to and cooperating with the limiting groove 11 is provided at the upper end of the first support member 20. The limiting block 21 is integrally formed or welded to the first support member 20, and a slope 22 is provided on the limiting block 21 for facilitating insertion into the limiting groove 11. Because limiting grooves 11 are provided on the horizontal and vertical sides of the four corners of the battery mounting plate 10, the displacement of the battery mounting plate 10 in the horizontal direction can be effectively limited by limiting the limiting blocks 21 and the limiting grooves 11.

[0035] More specifically, the first support member 20 includes a support column 23 and a support plate 24, which is fixedly connected (welded) to the upper end of the support column 23. The support plate 24 has a first support section 25 and a second support section 26, which are perpendicular to each other. Each of the first support section 25 and the second support section 26 is provided with at least one mounting opening 27. The limit block 21 corresponds one-to-one with the mounting opening 27. The limit block 21 is welded into the mounting opening 27, and the upper end of the limit block 21 extends out of the mounting opening 27. The portion of the limit block 21 extending out of the mounting opening 27 engages with the limiting groove 11. The provision of the mounting opening 27 ensures that the limit block 21 is accurately positioned on the first support member 20. The contact area between the limit block 21 and the first support member 20 is larger, allowing the limit block 21 to be welded more securely. In addition, a bell mouth 28 can be provided on the mounting opening 27 to facilitate the entry of the limit block 21, thereby facilitating the installation and welding of the limit block 21.

[0036] The second support member 30 includes a crossbeam 31 and at least one leg 32, with the crossbeam 31 connected above the leg 32. This configuration of the second support member 30 has a simple structure and is easy to manufacture. The second support member 30 can be connected in any of the following ways: first, the second support member 30 (specifically, the crossbeam 31) is connected to the battery mounting plate 10 adjacent to it above, and the second support member 30 (specifically, the leg 32) abuts the battery mounting plate 10 adjacent to it below; second, the second support member 30 (specifically, the crossbeam 31) abuts the battery mounting plate 10 adjacent to it above, and the second support member 30 (specifically, the leg 32) is connected to the battery mounting plate 10 adjacent to it below; third, the second support member 30 is connected to the battery mounting plate 10 adjacent to it, i.e., the crossbeam 31 is connected to the battery mounting plate 10 adjacent to it above, and the leg 32 is connected to the battery mounting plate 10 adjacent to it below. Because the second support member 30 only needs to support the battery mounting plate 10 above it in the vertical direction, the connection between the beam 31 and the support leg 32, the beam 31 and the battery mounting plate 10, and the support leg 32 and the battery mounting plate 10 can be achieved by welding, bolting, plugging, etc.

[0037] In particular, the present invention provides a backing plate 40 on the bottom surface of the lowest battery mounting plate 10. This backing plate 40 isolates the lowest battery mounting plate 10 from the mounting surface, preventing the entire battery mounting plate 10 from contacting the mounting surface. This eliminates problems such as abnormal battery frame connection caused by an uneven or deformed mounting surface, twisting and deforming the battery frame after tightening, and damage to the battery pack 50.

[0038] In order to improve the protection of the battery pack 50, a number of sealing plates can be provided, which can be detachably connected (for example, screwed) to the frame body, and all the sealing plates form a protective cover covering the frame body, or the sealing plates and the frame body cooperate to form a protective cover. After such a setting, compared with the battery frame with side panels, when the battery pack 50 is installed into the frame body of the utility model, the operator can intuitively observe whether the installation surface of the battery pack 50 is in close contact. If the installation surface of the battery pack 50 is uneven, it can be discovered and dealt with in time. Of course, if the application scenario of the battery has a dedicated battery installation space, and the battery installation space is relatively closed, it is not necessary to set a sealing plate, which can be beneficial to the heat dissipation of the battery.

[0039] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any changes or replacements that can be easily thought of by any technician familiar with this technical field within the technical scope disclosed in the present invention should be covered by the protection scope of the present invention.

Claims

1. A battery frame, characterized in that: The invention comprises at least two battery mounting plates and at least one set of support assemblies, wherein the battery mounting plates are arranged in sequence at intervals in the vertical direction, and a set of support assemblies is arranged between two adjacent battery mounting plates; the support assemblies include first support members corresponding to the four corners of the battery mounting plates, the first support members are fixedly connected to the battery mounting plates adjacent to them below [1], and the first support members are bolted to the battery mounting plates adjacent to them above; the battery mounting plates and the support assemblies cooperate to form a frame body; at least one limiting groove is provided on the horizontal and vertical sides of the corners of the battery mounting plates, and the upper end of the first support member is provided with a limiting block corresponding to the limiting groove and cooperating with the limiting groove.

2. The battery frame according to claim 1, characterized in that: The limiting block is integrally formed or welded on the first supporting member.

3. The battery frame according to claim 1 or 2, characterized in that: The first support member includes a support column and a support plate, and the support plate is fixedly connected to the upper end of the support column; the support plate has a first support section and a second support section that are perpendicular to each other, and at least one limit block is connected to each of the first support section and the second support section.

4. The battery frame according to claim 3, characterized in that: The first supporting section and the second supporting section are both provided with mounting openings, the limiting block is welded in the mounting openings, and the upper end of the limiting block extends out of the mounting openings.

5. The battery frame according to claim 4, characterized in that: The installation opening is provided with a bell mouth for facilitating the entry of the limiting block.

6. The battery frame according to claim 1, characterized in that: The limiting block is provided with a slope for easy insertion into the limiting groove.

7. The battery frame according to claim 1, characterized in that: At least one second support member is further provided between the two adjacent battery mounting plates, and the second support member is located in the middle position of the battery mounting plate; the second support member is connected to the battery mounting plate adjacent to it above, and the second support member abuts the battery mounting plate adjacent to it below; or, the second support member abuts the battery mounting plate adjacent to it above, and the second support member is connected to the battery mounting plate adjacent to it below; or, the second support member is connected to the battery mounting plate adjacent to it.

8. The battery frame according to claim 7, characterized in that: The second supporting member includes a crossbeam and at least one leg, and the crossbeam is connected above the leg.

9. The battery frame according to claim 1, characterized in that: It also includes a plurality of sealing plates, which are detachably connected to the frame body. The sealing plates form a protective cover covering the frame body, or the sealing plates cooperate with the frame body to form a protective cover.

10. The battery frame according to claim 1, characterized in that: A pad is provided on the bottom surface of the battery mounting plate located at the bottom.

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