Battery pack, electric equipment and power utilization system

Abstract

The utility model relates to a battery pack, electric equipment and a power utilization system. The battery pack comprises a shell and a plurality of supporting pieces arranged on the lower portion of the shell, the supporting pieces are movably arranged, first rolling wheels are arranged at the ends of the supporting pieces, and the supporting pieces are movably arranged on the shell, so that the first rolling wheels are provided with supporting positions protruding out of the lower surface of the shell to support the battery pack and storage positions stored in the shell. By means of the technical scheme, when an operator needs to carry the battery pack, the first rolling wheels are adjusted to the supporting positions, in this way, the operator can carry the battery pack through the first rolling wheels, other carrying tools for carrying the battery pack are not needed any more, the carrying efficiency is improved, and the carrying cost is reduced. When the battery pack is loaded and unloaded, the first rolling wheels and the supporting pieces can play a role in supporting the battery pack, so that the battery pack can be loaded and unloaded more stably, other supporting tools do not need to be used in the loading and unloading process of the battery pack, the loading and unloading efficiency is improved, and the loading and unloading cost is reduced.

Description

Technical Field

[0001] The present disclosure relates to the field of battery packs, and in particular, to a battery pack, an electric device, and a power system. Background Art

[0002] The battery pack of an electric forklift is usually large in size and weight. When it needs to be repaired or replaced, it is usually necessary to use lifting tools or forklifts to load, unload and transport the battery pack. Taking the use of forklifts to load, unload and transport the battery pack as an example, during the loading, unloading and transporting process, a forklift, a skilled forklift driver and multiple assistants are usually required, resulting in low efficiency in battery pack unloading and transporting, increasing the labor intensity of operators and increasing production costs. Utility Model Content

[0003] The purpose of the present disclosure is to provide a battery pack, an electric device and an electric system to solve the problem that the battery pack is difficult to load, unload and carry in the related art.

[0004] A first object of the present disclosure is to provide a battery pack, comprising a shell and a plurality of support members arranged at the lower part of the shell, wherein the support members are movably arranged and a first roller is arranged at the end of the support member, and the support members are movably arranged on the shell so that the first roller has a supporting position protruding from the lower surface of the shell to support the battery pack and a storage position stored in the shell.

[0005] Optionally, the support member is configured as a leg, one end of the support member is hinged to the lower surface of the shell, and the battery pack further comprises a locking assembly for fixing the support member when the first roller is in the supporting position.

[0006] Optionally, the locking assembly includes a locking rod, one end of which is connected to the lower surface of the shell, and the other end is connected to the support member, and the hinge point between the support member and the lower surface of the shell, the connection point between the locking rod and the lower surface of the shell, and the connection point between the locking rod and the support member form a triangle.

[0007] Optionally, the locking rod includes a first rod body and a second rod body hinged to each other, and the locking assembly also includes a locking piece, one end of the first rod body is hinged to the lower surface of the shell, one end of the second rod body is hinged to the support member, a first locking hole is provided on the first rod body, and a second locking hole is provided on the second rod body, and the locking piece respectively passes through the first locking hole and the second locking hole to fix the support member when the support member is in the supporting position.

[0008] Optionally, an elastic member is further connected between the support member and the lower surface of the shell, and the elastic member has an elastic force driving the support member to rotate.

[0009] Optionally, a receiving groove for receiving the support member and the first roller is provided at the lower portion of the shell.

[0010] Optionally, the battery pack further includes a handle disposed on a side wall of the shell.

[0011] A second objective of the present disclosure is to provide an electric device, on which a battery compartment is provided for installing a battery pack as described above, and the battery compartment has a compartment opening provided on a side of the electric device for taking in and placing the battery pack.

[0012] Optionally, a first abutting block and a second abutting block are further provided in the battery compartment, wherein the first abutting block is provided on a side wall of the battery compartment opposite to the compartment opening, and the second abutting block is detachably provided at the compartment opening, and the first abutting block and the second abutting block are used to fix the battery after the battery pack is provided in the battery compartment.

[0013] Optionally, a second roller and a third roller for supporting the battery pack respectively are provided on the bottom plate of the battery compartment, and the second roller is closer to the compartment opening than the third roller, wherein the height of the highest point of the second roller in the vertical direction is greater than the height of the highest point of the third roller in the vertical direction.

[0014] Optionally, a chamfered structure is formed on the lower edge of the port.

[0015] Optionally, guide blocks capable of contacting the battery pack are respectively provided on two side walls of the battery compartment located on both sides of the compartment opening.

[0016] The third object of the present disclosure is to provide an electric power system, comprising a battery pack as described in any one of the above items and an electric device as described in any one of the above items.

[0017] Through the above technical solution, the movably arranged support member can drive the first roller to move, so that the first roller has a support position protruding from the lower surface of the shell to support the battery pack and a storage position inside the shell. When the operator needs to carry the battery pack, the first roller is adjusted to the support position, so that the operator can carry the battery pack by himself through the first roller, and no longer needs to use other carrying tools to carry the battery pack, thereby improving the carrying efficiency and reducing the carrying cost. At the same time, by adjusting the size of the support member itself or adjusting the distance that the support member drives the first roller to move, the distance that the first roller protrudes from the lower surface of the shell when it is in the supporting position can be changed, so that when loading and unloading the battery pack, the first roller and the support member can play a role in supporting the battery pack, so that the battery pack can be more stable during loading and unloading, and other supporting tools are no longer needed during the process of unloading and unloading the battery pack, thereby improving the loading and unloading efficiency and reducing the loading and unloading cost.

[0018] Other features and advantages of the present disclosure will be described in detail in the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The accompanying drawings are used to provide a further understanding of the present disclosure and constitute a part of the specification. Together with the following specific embodiments, they are used to explain the present disclosure but do not constitute a limitation of the present disclosure. In the accompanying drawings:

[0020] Figure 1 is a schematic structural diagram of a battery pack provided by an exemplary embodiment of the present disclosure from one perspective;

[0021] Figure 2 yes Figure 1 A magnified view of part A;

[0022] Figure 3 is a schematic structural diagram of a battery pack provided by an exemplary embodiment of the present disclosure from another perspective;

[0023] Figure 4 yes Figure 3 A magnified view of part B;

[0024] Figure 5 is a structural schematic diagram of a battery pack provided by an exemplary embodiment of the present disclosure from another perspective;

[0025] Figure 6 yes Figure 5 Enlarged view of part C;

[0026] Figure 7 is a schematic structural diagram of an electric device provided by an exemplary embodiment of the present disclosure from one perspective;

[0027] Figure 8 yes Figure 7 Enlarged view of part D.

[0028] Description of Reference Numerals

[0029] 1-shell, 11-accommodating groove, 12-handle, 2-support member, 21-first roller, 3-locking assembly, 31-first rod body, 311-first locking hole, 32-second rod body, 321-second locking hole, 33-locking member 33, 4-elastic member, 5-battery pack, 6-battery compartment, 61-compartment opening, 611-chamfered structure, 62-first abutting block, 63-second abutting block, 64-second roller, 65-third roller, 66-guide block. DETAILED DESCRIPTION

[0030] The specific implementation of the present disclosure is described in detail below in conjunction with the accompanying drawings. It should be understood that the specific implementation described herein is only used to illustrate and explain the present disclosure, and is not used to limit the present disclosure.

[0031] In the present disclosure, unless otherwise stated, directional words such as "upper" and "lower" generally refer to the directional positions of the relevant components in actual use. Figure 1 The “inside” and “outside” refer to the inside and outside of the corresponding component outline. In addition, when the following description refers to the drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements. The terms “first”, “second”, etc. used in this disclosure are to distinguish one element from another element and have no order or importance.

[0032] like Figures 1 to 6 As shown, the present disclosure provides a battery pack 5, including a shell 1 and a plurality of support members 2 arranged at the lower part of the shell 1, the support members 2 are movably arranged and a first roller 21 is arranged at the end of the support member 2, and the support member 2 is movably arranged on the shell 1 so that the first roller 21 has a supporting position protruding from the lower surface of the shell 1 to support the battery pack and a storage position stored in the shell 1.

[0033] Through the above technical solution, the movably arranged support member 2 can drive the first roller 21 to move, so that the first roller 21 has a supporting position protruding from the lower surface of the shell 1 to support the battery pack 5 and a storage position stored in the shell 1. When the operator needs to carry the battery pack 5, the first roller 21 is adjusted to the supporting position, so that the operator can carry the battery pack 5 by the first roller 21 by himself, and no other carrying tools are needed to carry the battery pack 5, which improves the carrying efficiency and reduces the carrying cost. At the same time, by adjusting the size of the support member 2 itself or adjusting the distance that the support member 2 drives the first roller 21 to move, the distance that the first roller 21 protrudes from the lower surface of the shell 1 when it is in the supporting position can be changed, so that when loading and unloading the battery pack 5, the first roller 21 and the support member 2 can play a role in supporting the battery pack 5, so that the battery pack 5 can be more stable during loading and unloading, and other supporting tools are no longer needed during the loading and unloading process of the battery pack 5, which improves the loading and unloading efficiency and reduces the loading and unloading cost. Taking the disassembly of the battery pack 5 as an example, the battery pack 5 can be partially taken out of the battery compartment 6. At this time, the first roller 21 exposed outside the battery compartment 6 can be adjusted to the supporting position. When the first roller 21 is in the supporting position and the distance protruding from the lower surface of the shell 1 is appropriate, the first roller 21 can directly contact the ground to support the battery pack 5.

[0034] The first roller 21 may be a universal wheel that can be locked, so that the battery pack 5 can flexibly change direction when the operator is carrying the battery pack 5. At the same time, when the universal wheel is locked, the battery pack 5 is prevented from shifting.

[0035] As mentioned above, the support member 2 is movably arranged, and the "movable" here includes two aspects. One aspect refers to that the support member 2 is fixedly connected to the housing 1, and the support member 2 itself is movable. The other aspect refers to that the support member 2 itself is not movable, but the support member 2 and the housing 1 are movably connected.

[0036] In some embodiments, the support member 2 may be an electric telescopic rod fixedly connected to the housing 1, and the electric telescopic rod may be embedded and fixed in the lower part of the housing 1. In this case, the electric telescopic rod itself is movable, and the first roller 21 may be arranged at one end of the electric telescopic rod, so that when the electric telescopic rod is extended, the first roller 21 may protrude from the lower surface of the housing 1, and when the electric telescopic rod is retracted, the first roller 21 may not protrude from the lower surface of the housing 1. By changing the stroke of the electric telescopic rod, the distance by which the first roller 21 protrudes from the lower surface of the housing 1 when in the supporting position may be changed.

[0037] In other embodiments, reference may be made to Figures 1 to 6, the support member 2 can be constructed as a leg, in which case the support member 2 itself is not movable, one end of the support member 2 is hinged to the lower surface of the shell 1, and the lower surface of the shell 1 also belongs to the lower part of the shell 1. In this case, the support member 2 and the shell 1 are movably connected, so that when the support member 2 swings from horizontal to vertical, the swing of the support member 2 drives the first roller 21 to move, so that the first roller 21 protrudes from the lower surface of the shell 1, and when the support member 2 swings from vertical to horizontal, the first roller 21 does not protrude from the lower surface of the shell 1. At the same time, the battery pack 5 can also include a locking assembly 3, which is used to fix the support member 2 when the first roller 21 is in the supporting position. In this way, when the battery pack 5 is assisted to move by the support member 2 and the first roller 21, the position of the support member 2 can be fixed by the locking assembly 3, and the position of the first roller 21 can be further fixed to ensure the stability of the battery pack 5 when moving.

[0038] Continue to refer to Figures 1 to 6 The locking assembly 3 may include a locking rod, one end of which is connected to the lower surface of the housing 1, and the other end of which is connected to the support 2. The hinge point between the support 2 and the lower surface of the housing 1, the connection point between the locking rod and the lower surface of the housing 1, and the connection point between the locking rod and the support 2 form a triangle. The triangle is more stable, so that when the locking rod is connected to the support 2, the position of the support 2 can be locked to ensure that the position of the first roller 21 does not change. One end of the locking rod connected to the lower surface of the housing 1 can be hinged, and the other end of the locking rod connected to the support 2 can be detachably connected, so that when the locking rod is in the supporting position, it can be connected to the locking rod to avoid affecting the swing of the support 2.

[0039] The locking rod may include a first rod body 31 and a second rod body 32 which are hinged to each other. The locking assembly 3 also includes a locking member 33. One end of the first rod body 31 is hinged to the lower surface of the shell 1, and one end of the second rod body 32 is hinged to the support member 2. A first locking hole 311 is provided on the first rod body 31, and a second locking hole 321 is provided on the second rod body 32. The locking member 33 is respectively penetrated by the first locking hole 311 and the second locking hole 321 to fix the support member 2 when the support member 2 is in the supporting position.

[0040] In this way, the first rod body 31 and the second rod body 32 can be unfolded and folded following the swing of the support member 2, so that the locking rod has an unfolded state and a folded state. The locking rod occupies less space in the folded state, which is more convenient for the arrangement of the locking rod. When the locking rod is in the unfolded state, the locking member 33 is respectively penetrated by the first locking hole 311 and the second locking hole 321. At this time, the locking member 33 and the hinge of the first rod body 31 and the second rod body 32 work together to fix the position of the first rod body 31 and the second rod body 32. When the first roller 21 is in the storage position, the first rod body 31 and the second rod body 32 are folded. Figure 2 , Figure 4 and Figure 6 ,exist Figure 2 and Figure 6 At this time, the first rod 31 and the second rod 32 follow the swing of the support member 2 and are fixed by the locking member 33. Figure 4 At this time, the first rod body 31 and the second rod body 32 are in an intermediate position between unfolding and folding, and are not fixed by the locking member 33.

[0041] The operator can manually switch the first roller 21 between the storage position and the supporting position, or use other elements to switch the first roller 21 between the storage position and the supporting position. For example, an elastic member 4 may be connected between the support member 2 and the lower surface of the shell 1, and the elastic member 4 has an elastic force that drives the support member 2 to swing. The elastic member 4 may be a spring, so that when the spring is stretched, it can generate an elastic force that drives the support member 2 to swing, so that the first roller 21 switches between the storage position and the supporting position. Depending on the different connection positions of the elastic member 4 on the lower surface of the shell 1, the elastic member 4 can drive the support member 2 to swing clockwise or counterclockwise. Figure 6 The connection point between one end of the elastic member 4 and the lower surface of the housing 1 is located at the support member 2. Figure 6 On the left side of the drawing direction, the elastic force generated by the stretching of the spring will drive the support member 2 to swing clockwise, and the first roller 21 will move from the storage position to the supporting position.

[0042] The lower part of the housing 1 may be provided with a receiving groove 11 for receiving the support member 2 and the first roller 21. The receiving groove 11 may be arranged on the lower surface of the housing 1 and be recessed upwards, and at this time, the bottom of the receiving groove 11 may be formed as the lower surface of the housing 1, and the receiving groove 11 may receive the support member 2 and the first roller 21, and the locking assembly 3 mentioned above may also be arranged in the receiving groove 11, and the receiving groove 11 may prevent the support member 2, the first roller 21 and the locking assembly 3 from protruding from the lower surface of the housing 1, and will not affect the flatness of the lower surface of the housing 1.

[0043] The battery pack 5 may further include a handle 12 disposed on the side wall of the housing 1. The handle 12 may facilitate operators to move the battery pack 5.

[0044] According to a second aspect of the present disclosure, there is also provided an electric device, such as Figure 7 and Figure 8As shown, a battery compartment 6 for installing a battery pack 5 of any of the above-mentioned embodiments is provided on the electric device, and the battery compartment 6 has a compartment opening 61 provided on the side of the electric device for taking in and placing the battery pack 5. As described above, by adjusting the size of the support member 2 itself or adjusting the distance that the support member 2 drives the first roller 21 to move, the distance that the first roller 21 protrudes from the lower surface of the housing 1 when in the supporting position can be changed. When the support member 2 is configured as a leg, the distance that the first roller 21 protrudes from the lower surface of the housing 1 when in the supporting position can be changed by changing the length of the leg itself. The longer the leg, the more the distance that the first roller 21 protrudes from the lower surface of the housing 1 when in the supporting position, and the higher the height of the housing 1 when the first roller 21 is in the supporting position. By changing the length of the leg itself, the lower surface of the housing 1 can be made slightly higher than the bottom plate of the battery compartment 6, so as to facilitate taking in and placing the battery pack 5.

[0045] Specifically, Figure 6 The viewing angle and the direction of the drawing are used as reference. At this time, the connection point between one end of the elastic member 4 and the lower surface of the housing 1 is located at the Figure 6 On the left side of the drawing direction, the elastic force generated by the stretching of the spring will drive the leg to swing clockwise, and the first roller 21 will move from the storage position to the support position. At this time, the battery compartment 6 can be set at the leg Figure 6 , and the lower surface of the housing 1 can be slightly higher than the bottom plate of the battery compartment 6, so that when the battery pack 5 is pushed into the battery compartment 6, the bottom plate of the battery compartment 6 can abut against the legs, drive the legs to swing counterclockwise, so that the first roller 21 moves from the supporting position to the storage position. When the above-mentioned spring can also be connected between the support member 2 and the lower surface of the housing 1, when the battery pack 5 is pushed into the battery compartment 6, the bottom plate of the battery compartment 6 can overcome the elastic force of the spring, so that the first roller 21 moves from the supporting position to the storage position. When the battery pack 5 is taken out of the battery compartment 6, when the legs are exposed outside the bottom plate of the battery compartment 6, the bottom plate of the battery compartment 6 will not limit the legs, and the elastic force generated by the stretching of the spring will drive the support member 2 to swing, and the first roller 21 will move from the storage position to the supporting position. The bottom plate of the battery compartment 6 can cooperate with the elastic member 4 mentioned above, so that the operator does not need to manually operate the first roller 21 to switch between the storage position and the supporting position.

[0046] A first abutting block 62 and a second abutting block 63 may also be provided in the battery compartment 6. The first abutting block 62 is provided on the side wall of the battery compartment 6 opposite to the hatch 61, and the second abutting block 63 is detachably provided at the hatch 61. The first abutting block 62 and the second abutting block 63 are used to fix the battery after the battery pack 5 is provided in the battery compartment 6. The first abutting block 62 may abut against the side wall of the battery pack 5 away from the hatch 61, and the second abutting block 63 may abut against the side wall of the battery pack 5 close to the compartment, so that the second abutting block 63 and the first abutting block 62 may define a space for fixing the battery pack 5 to prevent the battery pack 5 from shifting in the battery compartment 6. The second abutting block 63 is detachably provided at the hatch 61. When the battery pack 5 is taken out of the battery compartment 6, the second abutting block 63 may be removed to prevent the second abutting block 63 from blocking the battery pack 5. When the battery pack 5 is pushed into the battery compartment 6 , the second abutting block 63 can be installed after the battery pack 5 contacts the first abutting block 62 .

[0047] The bottom plate of the battery compartment 6 may be provided with a second roller 64 and a third roller 65 for supporting the battery pack 5, respectively. The second roller 64 is closer to the compartment opening 61 than the third roller 65, wherein the height of the highest point of the second roller 64 in the vertical direction is greater than the height of the highest point of the third roller 65 in the vertical direction. The second roller 64 and the third roller 65 can assist the movement of the battery pack 5 when taking the battery pack 5 out of the battery compartment 6 or pushing the battery pack 5 into the battery compartment 6, and can also support the battery pack 5. The height of the highest point of the second roller 64 and the third roller 65 in the vertical direction can be based on the bottom plate of the battery pack 5, and can be specifically referred to. Figure 8 At this time, the height of the highest point of the second roller 64 in the vertical direction is represented by a straight-line distance F, and the height of the highest point of the third roller 65 in the vertical direction is represented by a straight-line distance E. The length of the straight-line distance F is greater than the straight-line distance E, and the second roller 64 is closer to the hatch 61 than the third roller 65. In this way, during the movement of the battery pack 5, the position of the battery pack 5 close to the hatch 61 will be propped up, and the first roller 21 close to the hatch 61 will be driven away from the ground, so that the operator can remove or install the locking member 33 on the locking assembly 3.

[0048] The lower edge of the hatch 61 may be formed with a chamfered structure 611. The bottom plate of the battery compartment 6 may abut against the legs, driving the legs to swing counterclockwise, and when the lower edge of the hatch 61 is formed with a chamfered structure 611, the legs will not be scratched when the lower edge of the hatch 61 abuts against the legs.

[0049] The two side walls of the battery compartment 6 on both sides of the compartment opening 61 may be respectively provided with guide blocks 66 capable of contacting the battery pack 5. The guide blocks 66 can respectively contact the side walls of the battery pack 5 during the movement of the battery pack 5 to ensure the moving direction of the battery pack 5.

[0050] The third object of the present disclosure is to provide an electric power system, including a battery pack 5 of any one of the above embodiments and an electric device of any one of the above embodiments, and having all the beneficial effects thereof, which will not be described in detail here.

[0051] The preferred embodiments of the present disclosure are described in detail above in conjunction with the accompanying drawings; however, the present disclosure is not limited to the specific details in the above embodiments. Within the technical concept of the present disclosure, a variety of simple modifications can be made to the technical solution of the present disclosure, and these simple modifications all fall within the protection scope of the present disclosure.

[0052] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable manner without contradiction. In order to avoid unnecessary repetition, the present disclosure will not further describe various possible combinations.

[0053] In addition, various embodiments of the present disclosure may be arbitrarily combined, and as long as they do not violate the concept of the present disclosure, they should also be regarded as the contents disclosed by the present disclosure.

Claims

1. A battery pack, characterized in that: It includes a shell and a plurality of support members arranged at the lower part of the shell, and a first roller is arranged at the end of the support member. The support member can be movably arranged on the shell so that the first roller has a supporting position protruding from the lower surface of the shell to support the battery pack and a storage position stored in the shell.

2. The battery pack according to claim 1, characterized in that: The support member is configured as a leg, one end of which is hinged to the lower surface of the shell, and the battery pack further comprises a locking assembly, which is used to fix the support member when the first roller is in the supporting position.

3. The battery pack according to claim 2, characterized in that: The locking assembly includes a locking rod, one end of which is connected to the lower surface of the shell, and the other end is connected to the support member, and the hinge point between the support member and the lower surface of the shell, the connection point between the locking rod and the lower surface of the shell, and the connection point between the locking rod and the support member form a triangle.

4. The battery pack according to claim 3, characterized in that: The locking rod includes a first rod body and a second rod body hinged to each other, and the locking assembly also includes a locking piece, one end of the first rod body is hinged to the lower surface of the shell, one end of the second rod body is hinged to the support member, a first locking hole is provided on the first rod body, and a second locking hole is provided on the second rod body, and the locking piece passes through the first locking hole and the second locking hole respectively to fix the support member when the support member is in the supporting position.

5. The battery pack according to claim 2, characterized in that: An elastic member is also connected between the support member and the lower surface of the shell, and the elastic member has an elastic force for driving the support member to rotate.

6. The battery pack according to claim 1, characterized in that: The lower part of the shell is provided with a receiving groove for receiving the supporting member and the first roller.

7. The battery pack according to claim 1, characterized in that: The battery pack further includes a handle disposed on a side wall of the housing.

8. An electric device, characterized in that: The electric device is provided with a battery compartment for installing the battery pack according to any one of claims 1 to 7, and the battery compartment has a compartment opening provided on the side of the electric device for taking in and placing the battery pack.

9. The electric device according to claim 8, characterized in that: A first abutting block and a second abutting block are also provided in the battery compartment. The first abutting block is provided on the side wall of the battery compartment opposite to the compartment opening, and the second abutting block is detachably provided at the compartment opening. The first abutting block and the second abutting block are used to fix the battery after the battery pack is provided in the battery compartment.

10. The electric device according to claim 8, characterized in that: A second roller and a third roller for supporting the battery pack are respectively provided on the bottom plate of the battery compartment, wherein the second roller is closer to the compartment opening than the third roller, wherein the height of the highest point of the second roller in the vertical direction is greater than the height of the highest point of the third roller in the vertical direction.

11. The electric device according to claim 8, characterized in that: The lower edge of the port is formed with a chamfered structure.

12. The electric device according to claim 8, characterized in that: Guide blocks capable of contacting the battery pack are respectively arranged on the two side walls of the battery compartment located on both sides of the compartment opening.

13. An electricity system, characterized in that: It comprises the battery pack described in any one of claims 1 to 7 and the electric device described in any one of claims 8 to 12.

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