Battery pack for a forklift truck

Abstract

The utility model provides a kind of battery pack for fork truck, and battery pack includes: battery device, battery device includes box and battery module, box is formed with first accommodating space and second accommodating space along first direction, first accommodating space includes first battery cabin, second accommodating space is formed with second battery cabin and electrical cabin along second direction, battery module is arranged in battery cabin, battery cabin includes first battery cabin and second battery cabin, electrical cabin is arranged in the upper portion of battery cabin, to form inverted "L" type, battery module includes sodium ion battery or lithium ion battery;Accommodating groove, the top opening of accommodating groove, accommodating groove contains battery device, the lower portion of battery cabin and the lower portion of electrical cabin are embedded into accommodating groove;Counterweight, counterweight is arranged in the bottom of accommodating groove, it is oppositely arranged with battery cabin in second direction, and it is oppositely arranged with electrical cabin in first direction. According to the utility model's battery pack for fork truck, it is easy to disassemble and assemble, and adapt to conventional fork truck.

Description

Technical Field

[0001] This utility model relates to the field of new energy batteries, and more specifically, to a battery pack for forklifts. Background Technology

[0002] The battery pack provides the power needed for the forklift to operate.

[0003] Traditional battery packs for forklifts consist of a housing and a battery unit, with the battery unit enclosed in a sealed housing. This structure makes the installation and removal of the battery unit relatively complicated.

[0004] Furthermore, traditional forklifts use lead-acid batteries. Compared to lead-acid batteries, lithium-ion or sodium-ion batteries offer more stable and abundant power, and are relatively lighter. However, modifying the structure of a forklift after its initial construction is costly. How to adapt battery packs containing lithium-ion or sodium-ion batteries to traditional forklifts with lead-acid batteries remains a problem to be solved. Utility Model Content

[0005] This invention provides a new technical solution for a battery pack for forklifts, which can at least solve the problems of the cumbersome disassembly and assembly of battery devices in the prior art and the compatibility of lithium-ion or sodium-ion cells with traditional forklifts with lead-acid cells.

[0006] According to this utility model, a battery pack for a forklift is provided, the battery pack comprising:

[0007] A battery device includes a housing and a battery module. The housing has a first accommodating space and a second accommodating space along a first direction. The first accommodating space includes a first battery compartment. The second accommodating space has a second battery compartment and an electrical compartment along a second direction. The first direction is the height direction, and the second direction is the length direction. The battery module is disposed in the battery compartment. The battery compartment includes the first battery compartment and the second battery compartment. The electrical compartment is disposed at the upper part of the battery compartment to form an inverted "L" shape. The battery module includes sodium-ion cells or lithium-ion cells.

[0008] A receiving slot with an opening at the top, the receiving slot accommodating the battery device, the lower part of the battery compartment and the lower part of the electrical compartment being embedded in the receiving slot;

[0009] A counterweight is disposed at the bottom of the receiving slot and abuts against the housing. The counterweight is disposed opposite to the battery compartment in the second direction and opposite to the electrical compartment in the first direction.

[0010] Furthermore, the counterweight is formed into a cuboid.

[0011] Furthermore, the weight of the counterweight can be adjusted.

[0012] Furthermore, the counterweight includes a housing and a filler disposed within the housing.

[0013] Furthermore, the counterweight is detachably connected to the receiving groove.

[0014] Furthermore, the battery module includes multiple modules, which are disposed within the battery compartment, with the multiple battery modules arranged vertically. The battery device also includes:

[0015] An electrical component is disposed within the electrical compartment and is electrically connected to the battery module.

[0016] Furthermore, the electrical components are disposed on the inner wall of the electrical compartment.

[0017] Furthermore, the battery device also includes:

[0018] A partition is disposed inside the housing and is located at the junction of the first accommodating space and the second accommodating space in the first direction; the partition serves as the bottom surface of the second battery compartment and is used to support the battery module inside the second battery compartment.

[0019] Furthermore, the housing has a first opening in a third direction, wherein the third direction is the width direction, and the battery device includes:

[0020] A first sealing plate is detachably disposed at the first opening to close the first opening.

[0021] Furthermore, the housing has a second opening in the first direction, and the battery device further includes:

[0022] A second sealing plate is detachably provided at the second opening to close the second opening.

[0023] According to this utility model, a battery pack for forklifts includes a battery unit comprising an inverted "L"-shaped housing and battery modules housed within the housing. The lower part of the battery unit is embedded (inserted) into a receiving groove, and a counterweight is disposed at the bottom of the receiving groove and abuts against the battery unit. The receiving groove, instead of a conventional closed housing, facilitates the assembly and disassembly of the battery unit. The counterweight increases the weight of the battery cells, maintaining the stability of the forklift without altering its structure, preventing tipping, and making battery packs with sodium-ion or lithium-ion cells compatible with traditional forklifts.

[0024] Other features and advantages of the present invention will become clear from the following detailed description of exemplary embodiments of the present invention with reference to the accompanying drawings. Attached Figure Description

[0025] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments of the present invention and, together with their description, serve to explain the principles of the present invention.

[0026] Figure 1 This is a structural diagram of a battery pack for a forklift according to an embodiment of the present invention;

[0027] Figure 2 This is a structural diagram of the receiving groove and counterweight according to an embodiment of the present invention;

[0028] Figure 3 This is a structural diagram of a battery device according to an embodiment of the present invention;

[0029] Figure 4 This is a structural diagram of a box body according to an embodiment of the present utility model;

[0030] Figure 5 It is based on Figure 3 A structural diagram of the battery device of the embodiment, excluding the first sealing plate.

[0031] Figure label:

[0032] 100. Battery module; 210. Housing; 212. First opening; 211. Second opening; 213. Electrical compartment; 214. Battery compartment; 215. Partition; 220. First sealing plate; 230. Second sealing plate; 300. Electrical components; 400. Counterweight; 500. Receiving slot. Detailed Implementation

[0033] Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that, unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps set forth in these embodiments do not limit the scope of the present invention.

[0034] The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit the invention or its application or use.

[0035] Techniques, methods, and equipment known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and equipment should be considered part of the specification.

[0036] In all the examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values.

[0037] It should be noted that similar labels and letters in the following figures indicate similar items; therefore, once an item is defined in one figure, it does not need to be discussed further in subsequent figures.

[0038] The battery pack for a forklift according to an embodiment of the present invention will now be described in detail with reference to the accompanying drawings.

[0039] like Figures 1 to 5 As shown, the battery pack for a forklift according to an embodiment of the present invention includes a battery device, a receiving slot 500, and a counterweight 400.

[0040] First, the battery device is described. The battery device includes a housing 210 and a battery module 100. The housing has a first accommodating space and a second accommodating space along a first direction. The first accommodating space includes a first battery compartment. The second accommodating space has a second battery compartment and an electrical compartment along a second direction. The first direction is the height direction, and the second direction is the length direction. The battery module 100 is disposed in the battery compartment 214. The battery compartment 214 includes the first battery compartment and the second battery compartment. The electrical compartment is disposed at the upper part of the battery compartment to form an inverted "L" shape. The battery module 100 includes sodium-ion cells or lithium-ion cells.

[0041] like Figure 1 and Figure 3 As shown, the up-down direction is the first direction, the front-back direction is the second direction, and the left-right direction is the third direction. See the attached diagram for further details. Figure 1 and Figure 3 .

[0042] like Figure 1 , Figure 3 , Figure 4 and Figure 5 As shown, an electrical compartment 213 is provided on the upper rear side of the battery compartment 214, thereby forming an inverted "L" shaped box 210. The box 210 houses the battery module 100, thus forming an inverted "L" shaped battery device battery module 100.

[0043] Next, the receiving slot 500 will be described. The receiving slot 500 has an opening at the top and accommodates the battery device. The lower part of the battery compartment 214 and the lower part of the battery device electrical compartment 213 are embedded in the receiving slot 500.

[0044] like Figure 1 and Figure 2 As shown, the battery device is housed in a receiving slot 500 with a top opening, and the battery device can be inserted (embedded) into the receiving slot 500. The receiving slot 500, instead of a conventional closed housing, facilitates the installation and removal of the battery device.

[0045] Next, the counterweight 400 will be described. The counterweight 400 is disposed at the bottom of the receiving slot 500 and abuts against the housing 210. The counterweight 400 is disposed opposite to the battery compartment 214 in the second direction and opposite to the electrical compartment 213 in the first direction.

[0046] like Figure 1 and Figure 3 As shown, a counterweight 400 is provided at the rear end of the bottom of the receiving slot 500. The counterweight 400 abuts against the rear side wall of the battery compartment 214 and the bottom end of the electrical compartment 213, thereby making the battery pack more stable.

[0047] Replacing lead-acid batteries with sodium-ion or lithium-ion batteries will reduce the weight of the batteries while providing the same power. The weight of the batteries can be increased by using counterweight 400, which can maintain the stability of the forklift and prevent it from tipping over without changing the forklift structure.

[0048] The battery pack for forklifts described above includes a battery unit comprising an inverted "L"-shaped housing 210 and a battery module 100 housed within the housing 210. The lower part of the battery unit is embedded (inserted) into a receiving groove 500, and a counterweight 400 is positioned at the bottom of the receiving groove 500 and abuts against the battery unit. The receiving groove 500, instead of a conventional closed housing, facilitates the installation and removal of the battery unit. The counterweight 400 increases the weight of the battery cells, maintaining the stability of the forklift without altering its structure, preventing tipping, and making battery packs with sodium-ion or lithium-ion cells compatible with traditional forklifts.

[0049] In some embodiments of this utility model, the counterweight 400 is formed as a cuboid.

[0050] like Figure 2 As shown, the counterweight 400 is formed into a cuboid. This allows it to stably support the battery assembly and maintain the stability of the battery pack.

[0051] In some embodiments of this utility model, the weight of the counterweight 400 is adjustable.

[0052] By adjusting the weight of counterweight 400, the weight of the battery pack can be adjusted more precisely, maintaining the stability of the forklift.

[0053] Furthermore, the counterweight 400 includes a housing and filler disposed within the housing.

[0054] The weight of the counterweight 400 can be adjusted by changing the quantity or type of filling material inside it. The filling material can be sand, steel balls, metal blocks, etc.

[0055] In some embodiments of this utility model, the counterweight 400 and the receiving groove 500 are detachably connected.

[0056] The counterweight 400 is detachably connected to the receiving slot 500, allowing for easy replacement of different counterweights 400 to match different battery devices.

[0057] In some embodiments of this utility model, the battery module includes multiple modules. The battery device also includes an electrical component 300. The battery modules 100 are disposed within the battery compartment 214, and the multiple battery modules 100 are arranged vertically. The electrical component 300 is disposed within the electrical compartment 213 and is electrically connected to the battery modules 100.

[0058] like Figure 5 As shown, two battery modules 100 are arranged one above the other and are both located in the battery compartment 214 of the housing 210. The number of battery cells is not limited here; it can be three, four, five, etc.

[0059] like Figure 5 As shown, the electrical component 300 is located in the electrical compartment 213 at the rear of the housing 210, isolated from the battery module 100 rather than stacked with it. This reduces the impact of the battery module 100 on the electrical component 300 and increases safety. Furthermore, the electrical component 300 is located in front of or behind the battery module 100, rather than on top of it, which reduces the height space required for the battery device.

[0060] Furthermore, the electrical component 300 is disposed on the inner wall of the electrical compartment 213.

[0061] like Figure 5 As shown, the electrical component 300 is suspended on the inner wall of the electrical compartment 213 of the housing 210 and fixed in place, ensuring that the electrical component 300 does not occupy too much space and that the fixing of the electrical component 300 is more stable.

[0062] In some embodiments of this utility model, the battery device further includes a separator. The separator 215 is disposed within the housing 210, and is located at the junction of the first accommodating space and the second accommodating space in the first direction. The separator 215 serves as the bottom surface of the second battery compartment, supporting the battery module 100 within the second battery compartment.

[0063] like Figure 4 and Figure 5 As shown, the partition 215 is installed inside the housing 210 at the junction of the first accommodating space and the second accommodating space. It supports the battery module 100 in the second battery compartment, reduces the mutual influence (squeezing, collision, friction, etc.) between the battery module 100 in the first battery compartment and the battery module 100 in the second battery compartment, and further increases safety.

[0064] In some embodiments of this invention, the housing 210 has a first opening 212 formed in a third direction, which is the width direction. The battery device includes a first sealing plate 220. The first sealing plate 220 detachably closes the first opening 212.

[0065] like Figure 3 and Figure 4 As shown, the housing 210 has a first opening 212 on its left side. The first sealing plate 220 closes the first opening 212 with fasteners (bolts / nuts), which facilitates the assembly and disassembly of the battery module 100 and the electrical components 300.

[0066] Furthermore, the housing 210 is provided with a second opening 211 in the first direction, and the battery device also includes a second sealing plate 230. The second sealing plate 230 is detachably provided at the second opening 211 to close the second opening 211.

[0067] like Figure 3 and Figure 4 As shown, a second opening 211 is formed on the top of the housing 210, and a second sealing plate 230 closes the second opening 211. The second opening 211 facilitates the maintenance of the battery device.

[0068] Although specific embodiments of the present invention have been described in detail by way of examples, those skilled in the art should understand that the above examples are for illustrative purposes only and are not intended to limit the scope of the present invention. Those skilled in the art should understand that modifications can be made to the above embodiments without departing from the scope and spirit of the present invention. The scope of the present invention is defined by the appended claims.

Claims

1. A battery pack for a forklift, characterized in that, The battery pack includes: A battery device, comprising a housing (210) and a battery module (100), wherein the housing has a first accommodating space and a second accommodating space along a first direction, the first accommodating space comprising a first battery compartment, and the second accommodating space has a second battery compartment and an electrical compartment (213) along a second direction, wherein the first direction is the height direction and the second direction is the length direction, the battery module (100) is disposed in the battery compartment (214), the battery compartment (214) comprising the first battery compartment and the second battery compartment, and the electrical compartment (213) is disposed on the upper part of the battery compartment (214) to form an inverted "L" shape, and the battery module (100) comprises a sodium-ion battery cell or a lithium-ion battery cell; A receiving slot (500) with a top opening, the receiving slot (500) accommodating the battery device, the lower part of the battery compartment (214) and the lower part of the electrical compartment (213) being embedded in the receiving slot (500); A counterweight (400) is disposed at the bottom of the receiving groove (500) and abuts against the housing (210). The counterweight (400) is disposed opposite to the battery compartment (214) in the second direction and opposite to the electrical compartment (213) in the first direction.

2. The battery pack for forklifts according to claim 1, characterized in that, The counterweight (400) is formed as a cuboid.

3. The battery pack for forklifts according to claim 1, characterized in that, The weight of the counterweight (400) is adjustable.

4. The battery pack for forklifts according to claim 3, characterized in that, The counterweight (400) includes a housing and a filler disposed within the housing.

5. The battery pack for a forklift according to claim 1, characterized in that, The counterweight (400) is detachably connected to the receiving groove (500).

6. The battery pack for a forklift according to claim 1, characterized in that, The battery module (100) includes multiple modules, which are disposed within the battery compartment (214). The multiple battery modules (100) are arranged vertically. The battery device further includes: An electrical component (300) is disposed within the electrical compartment (213) and is electrically connected to the battery module (100).

7. The battery pack for a forklift according to claim 6, characterized in that, The electrical components (300) are disposed on the inner wall of the electrical compartment (213).

8. The battery pack for a forklift according to claim 6, characterized in that, The battery device also includes: A partition (215) is disposed inside the housing (210). The partition (215) is located at the junction of the first accommodating space and the second accommodating space in the first direction. The partition (215) serves as the bottom surface of the second battery compartment and is used to support the battery module (100) inside the second battery compartment.

9. The battery pack for a forklift according to claim 6, characterized in that, The housing (210) has a first opening (212) in a third direction, wherein the third direction is the width direction, and the battery device includes: A first sealing plate (220) is detachably disposed on the first opening (212) to close the first opening (212).

10. The battery pack for a forklift according to claim 9, characterized in that, The housing (210) has a second opening (211) in the first direction, and the battery device further includes: The second sealing plate (230) is detachably provided at the second opening (211) to close the second opening (211).

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