Weight-adjustable battery pack

Abstract

The utility model provides a weight-adjustable battery pack, which comprises a box body, a weight-adjustable battery pack, a weight-adjustable battery pack, a weight-adjustable battery pack body and a battery pack body, the top of the box body is provided with an opening, and the interior of the box body is divided into a lower-layer space and an upper-layer space from bottom to top; the battery module is arranged in the box body, the battery module is divided into an upper-layer module and a lower-layer module, the lower-layer space is paved with the lower-layer module, the upper-layer space comprises a module space and a counterweight space, the upper-layer module is located in the module space, and counterweight parts with different weights can be accommodated in the counterweight space; and the box cover is connected with the box body and seals the opening of the box body. According to the weight-adjustable battery pack, the cost can be saved, batch operation is facilitated, and the adaptability to different vehicle types is improved.

Description

Technical Field

[0001] This utility model relates to the field of new energy batteries, and more specifically, to a battery pack with adjustable weight. Background Art

[0002] Different models of existing new energy forklifts require different battery packs, and there are different requirements for the weight of the battery packs.

[0003] To adapt to different vehicle models, different battery packs need to be designed (both the battery modules and the casing within the battery pack need to be modified), which is costly and not suitable for mass production. Utility Model Content

[0004] This invention provides a new technology solution for an adjustable weight battery pack, which can at least solve the problem of adaptability of existing battery packs to different vehicle models.

[0005] According to this utility model, an adjustable weight battery pack is provided, the battery pack comprising:

[0006] The box has an opening at the top and its interior is divided into a lower space and an upper space from bottom to top.

[0007] A battery module is disposed inside the housing. The battery module is divided into an upper module and a lower module. The lower module fills the lower space. The upper space includes a module space and a counterweight space. The upper module is located in the module space. The counterweight space can accommodate counterweights of different weights.

[0008] A lid that connects to the box body and closes the opening of the box body.

[0009] Optionally, the battery module includes multiple module units, at least two of the module units are combined to form a lower module, and at least one of the module units is combined to form an upper module.

[0010] Optionally, the battery pack further includes:

[0011] A fireproof board is disposed in the gap between adjacent module units.

[0012] Optionally, the battery pack further includes:

[0013] A tray is disposed on the inner wall of the box and located in the upper space to support the upper module.

[0014] Optionally, the counterweight is made of fire-resistant material.

[0015] Optionally, the battery pack further includes:

[0016] A counterweight assembly is provided at the bottom of the housing, and the weight of the counterweight assembly is adjustable.

[0017] Optionally, the counterweight assembly includes:

[0018] The counterweight shell is connected to the bottom of the box body through the counterweight shell, and an accommodating cavity is formed inside the counterweight shell;

[0019] The counterweight is disposed in the receiving cavity of the counterweight shell.

[0020] Optionally, the upper space further includes an electrical space, and the battery pack further includes:

[0021] Electrical components, which are disposed within the electrical space.

[0022] Optionally, the cover has a wire-through hole, and the battery pack further includes:

[0023] A power cord, which passes through the wire hole and connects to the electrical component;

[0024] A power connector is disposed on the outside of the cover and connected to the power cord.

[0025] Optionally, the battery pack further includes:

[0026] A buzzer, which is mounted on the housing cover and connected to the electrical components;

[0027] A Bluetooth module is disposed on the lid of the enclosure and connected to the electrical components;

[0028] A signal acquisition interface is provided on the cover of the enclosure and is connected to the electrical components.

[0029] The adjustable weight battery pack of this invention includes a housing, battery modules, and a cover. The housing houses the battery modules, and the cover closes the opening of the housing, thus providing better protection for the battery modules. The housing is divided into a lower space and an upper space. The lower space is filled with modules, the upper space houses the upper modules, and the upper space houses counterweights. Different weights of counterweights can be selected according to different vehicle models, with very small adjustment ranges, saving costs, facilitating mass production, and increasing adaptability to different vehicle models.

[0030] 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

[0031] 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.

[0032] Figure 1 This is a structural diagram of a battery pack according to an embodiment of the present invention;

[0033] Figure 2 It is based on Figure 1 A cross-sectional view of the battery pack.

[0034] Reference numerals:

[0035] 11. Lid; 12. Body; 13. Counterweight assembly;

[0036] 20. Battery module; 21. Upper module; 22. Lower module;

[0037] 311. Power cord; 312. Power connector; 32. Signal acquisition interface; 33. Bluetooth module; 34. Buzzer; 35. Tray;

[0038] 40. Counterweight space;

[0039] 50. Electrical components. DETAILED DESCRIPTION

[0040] 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.

[0041] 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.

[0042] 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.

[0043] In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not limiting. Therefore, other examples of the exemplary embodiments may have different values.

[0044] It should be noted that like reference numerals and letters refer to like items in the following figures, and therefore, once an item is defined in one figure, it need not be further discussed in subsequent figures.

[0045] The adjustable weight battery pack according to an embodiment of the present invention will now be described in detail with reference to the accompanying drawings.

[0046] like Figure 1 and Figure 2 As shown, the adjustable weight battery pack of this utility model includes a housing 12, a battery module 20, and a housing cover 11.

[0047] First, let's describe the box 12. The top of the box 12 is open, and the interior of the box 12 is divided into a lower space and an upper space from bottom to top.

[0048] The housing 12 can accommodate the battery module 20, thereby protecting the battery module 20.

[0049] Next, the battery module 20 will be described. The battery module 20 is installed inside the housing 12. The battery module 20 is divided into an upper module 21 and a lower module 22. The lower module 22 fills the lower space. The upper space includes a module space and a counterweight space 40. The upper module 21 is located in the module space. The counterweight space 40 can accommodate counterweights of different weights.

[0050] like Figure 2 As shown, the lower module 22 fills the lower space, the upper module space accommodates the upper module 21, and the upper counterweight space 40 accommodates the counterweight components. Different weights of counterweight components can be selected according to different vehicle models, with very little adjustment required (the outer shell (including the housing 12 and the cover 11) and the battery module 20 do not need to be modified), saving costs, facilitating mass production, and increasing the battery pack's adaptability to different vehicle models.

[0051] Finally, let's describe the lid 11. The lid 11 connects to the box body 12 and closes the opening of the box body 12.

[0052] The opening of the cover 11 is closed by the cover 11, thereby better protecting the battery module 20.

[0053] The adjustable-weight battery pack described above includes a housing 12, battery modules 20, and a cover 11. The housing 12 houses the battery modules 20, and the cover 11 seals the opening of the housing 12, thus providing better protection for the battery modules 20. The housing 12 is divided into a lower space and an upper space. The lower space is filled with modules 22, while the upper space houses upper modules 21. The upper space also houses counterweights. Different weights of counterweights can be selected according to different vehicle models, with very small adjustment ranges, saving costs, facilitating mass production, and increasing adaptability to different vehicle models.

[0054] In some embodiments of this utility model, the battery module 20 includes multiple module units, at least two module units are combined to form a lower module 22, and at least one module unit is combined to form an upper module 21.

[0055] like Figure 2As shown, three module units are combined to form a lower module 22, which fills the lower space of the box 12. One module unit forms an upper module 21, which is set in the module space (the middle position of the upper space). The counterweight is set in the counterweight space 40 (the right side position of the upper space).

[0056] The module units can be easily combined to form the upper module 21 and the lower module 22. The module units facilitate mass production and improve the production efficiency of the battery pack. Moreover, even if some module units malfunction, only the corresponding module units need to be replaced, without the need to replace the entire upper module 21 and / or lower module 22, which can save costs.

[0057] It should be noted that the above are just optional examples. The lower module 22 may include four or five module units, and the upper module 21 may include two or three module units. All of these should be understood within the scope of this utility model.

[0058] Furthermore, the battery pack also includes a fireproof plate. The fireproof plate is disposed in the gap between adjacent module units.

[0059] Fireproof panels can enhance the ability to suppress thermal runaway, so that even if some module units experience thermal runaway, it will not affect other module units.

[0060] In some embodiments of this utility model, the battery pack further includes a tray 35, which is disposed on the inner wall of the housing 12 and located in the upper space to support the upper module 21.

[0061] like Figure 2 As shown, the upper module 21 is supported by a tray 35. By supporting the upper module 21 with the tray 35, the lower module 22 is not directly stacked on top of the upper module 21, which can avoid the upper module 21 and the lower module 22 being squeezed and damaged, thereby increasing the stability and safety of the battery pack.

[0062] It should be noted that the above are just optional examples. The number of trays 35 is not limited here. Multiple trays 35 can support multiple module units. The number of module units supported on a single tray 35 is also not limited. A single tray 35 can support multiple module units. All of these should be understood within the scope of this utility model.

[0063] In some embodiments of this utility model, the counterweight is a fire-resistant material component. This fire-resistant material component can be a metal block, stone block, rock wool board, etc.

[0064] Using fire-resistant materials as counterweights can reduce the risk of thermal runaway and suppress the fire.

[0065] In some embodiments of this utility model, the battery pack further includes a counterweight component 13, which is disposed at the bottom of the housing 12 and the weight of the counterweight component 13 is adjustable.

[0066] The weight of the battery pack can be further adjusted by the counterweight component 13 set at the bottom of the housing 12, thereby increasing the adjustable range of the battery pack weight and meeting the needs of a wider range of vehicle models.

[0067] Furthermore, the counterweight assembly 13 includes a counterweight shell and counterweight material. The counterweight assembly 13 is connected to the bottom of the box 12 through the counterweight shell, and a receiving cavity is formed inside the counterweight shell. The counterweight material is disposed in the receiving cavity of the counterweight shell. The counterweight material can be a metal block, sandbag, stone, etc.

[0068] The counterweight shell effectively connects to the bottom of the housing 12 and provides good protection for the counterweight material. By using counterweight materials of different weights, different weights can be achieved, thereby meeting the weight requirements of different vehicle models for the battery pack.

[0069] In some embodiments of this invention, the upper space further includes an electrical space. The battery pack also includes an electrical component 50. The electrical component 50 is disposed within the electrical space.

[0070] like Figure 2 As shown, an electrical space is provided on the left side of the module space, which houses the electrical components 50. The electrical components 50 can manage the battery module 20, enabling it to operate more efficiently.

[0071] Furthermore, a wiring hole is formed on the cover 11, and the battery pack also includes a power cord 311 and a power connector 312. The power cord 311 passes through the wiring hole and connects to the electrical assembly 50. The power connector 312 is located on the outside of the cover 11 and connects to the power cord 311.

[0072] like Figure 1 and Figure 2 As shown, the battery module 20 can be easily connected to external devices via the power cord 311 and the power connector 312 to enable charging and discharging.

[0073] Furthermore, the battery pack also includes a buzzer 34, a Bluetooth module 33, and a signal acquisition interface 32. The buzzer 34 is mounted on the cover 11 and connected to the electrical component 50. The Bluetooth module 33 is mounted on the cover 11 and connected to the electrical component 50. The signal acquisition interface 32 is mounted on the cover 11 and connected to the electrical component 50.

[0074] like Figure 1 As shown, a buzzer 34, a Bluetooth module 33, and a signal acquisition interface 32 are installed on the cover 11.

[0075] When thermal runaway occurs in battery module 20, electrical component 50 detects the thermal runaway and issues an audible alarm via buzzer 34. It can also send an alarm message to the monitoring device via wireless Bluetooth module 33, thereby enabling timely detection of abnormalities and alerting relevant personnel to handle the abnormalities.

[0076] By connecting to an external signal acquisition device through the signal acquisition interface 32, the operating status of the battery pack can be obtained easily and accurately.

[0077] 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 with adjustable weight, characterized in that: The battery pack comprises: A box body (12), wherein the top of the box body (12) is open, and the interior of the box body (12) is divided into a lower space and an upper space from bottom to top; A battery module (20), the battery module (20) being arranged in the box body (12), the battery module (20) being divided into an upper module (21) and a lower module (22), the lower module (22) filling the lower space, the upper space comprising a module space and a counterweight space (40), the upper module (21) being located in the module space, and the counterweight space (40) being capable of accommodating counterweights of different weights; A box cover (11), wherein the box cover (11) is connected to the box body (12) and closes an opening of the box body (12).

2. The weight-adjustable battery pack according to claim 1, characterized in that: The battery module (20) comprises a plurality of module units, at least two of the module units are combined to form a lower module (22), and at least one of the module units is combined to form an upper module (21).

3. The weight-adjustable battery pack according to claim 2, characterized in that: The battery pack further comprises: A fireproof board is arranged in the gap between adjacent module units.

4. The battery pack according to claim 1, characterized in that: The battery pack further comprises: A tray (35), wherein the tray (35) is arranged on the inner wall of the box body (12) and is located in the upper space to support the upper module (21).

5. The weight-adjustable battery pack according to claim 1, characterized in that: The counterweight is made of fireproof material.

6. The weight-adjustable battery pack according to claim 1, characterized in that: The battery pack further comprises: A counterweight component (13), wherein the counterweight component (13) is arranged at the bottom of the box body (12), and the weight of the counterweight component (13) is adjustable.

7. The weight-adjustable battery pack according to claim 6, characterized in that: The counterweight assembly (13) comprises: A counterweight shell, the counterweight assembly (13) being connected to the bottom of the box body (12) via the counterweight shell, and a receiving cavity being formed in the counterweight shell; The balancing weight material is arranged in the accommodating cavity of the balancing weight shell.

8. The weight-adjustable battery pack according to claim 7, characterized in that: The upper space also includes an electrical space, and the battery pack also includes: An electrical component (50) is arranged in the electrical space.

9. The weight-adjustable battery pack according to claim 8, characterized in that: The box cover (11) is formed with a wire hole, and the battery pack further comprises: A power line (311), the power line (311) passing through the line hole and connected to the electrical component (50); A power supply connector (312), wherein the power supply connector (312) is arranged on the outside of the box cover (11) and is connected to the power supply line (311).

10. The weight-adjustable battery pack according to claim 9, characterized in that: The battery pack further comprises: A buzzer (34), the buzzer (34) being arranged on the box cover (11) and connected to the electrical component (50); A Bluetooth module (33), the Bluetooth module (33) being disposed on the box cover (11) and connected to the electrical component (50); A signal collection interface (32), wherein the signal collection interface (32) is arranged on the box cover (11) and is connected to the electrical component (50).

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