Battery pack and electric equipment

Abstract

The utility model provides a battery pack and electric equipment. The battery pack comprises a shell and a handle, the shell comprises a first end plate and a second end plate which are oppositely arranged, a containing groove is formed in the side, away from the second end plate, of the first end plate, and the handle is located in the containing groove and movably installed on the shell, so that the handle has an unfolding state of moving to protrude out of the containing groove and a storage state of being stored in the containing groove; when the handle is in the unfolded state, the handle is used for being held by an operator, when the handle is in the folded state, the first end plate of one of the two battery packs is suitable for abutting against the second end plate of the other battery pack, and the purpose that the handle is completely hidden in the containing groove in the folded state during stacking is achieved; interference between adjacent battery packs during stacking can be avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of batteries, in particular to a battery pack and electrical equipment. Background Art

[0002] In the related art, a battery pack is usually provided with a handle so that an operator can hold the handle to carry the battery pack for stacking. However, since the handle protrudes from the outer contour of the battery pack, when multiple battery packs are stacked, the handle may interfere with adjacent battery packs. Utility Model Content

[0003] The embodiments of the utility model provide a battery pack and an electrical device, which can improve the technical problem in the related art that the handle protrudes from the outer contour of the battery pack, so that when multiple battery packs are stacked, the handle will interfere with adjacent battery packs.

[0004] In a first aspect, an embodiment of the present invention provides a battery pack.

[0005] In one embodiment, the battery pack includes:

[0006] The housing comprises a first end plate and a second end plate which are arranged opposite to each other, wherein a receiving groove is arranged on a side of the first end plate which is away from the second end plate;

[0007] A handle is located in the receiving groove and is movably mounted on the shell so that the handle has an extended state in which it moves to protrude from the receiving groove and a retracted state in which the handle is retracted into the receiving groove. When the handle is in the extended state, it is used for an operator to hold it. When the handle is in the retracted state, the first end plate of one of the two battery packs is suitable for abutting against the second end plate of the other battery pack.

[0008] In one embodiment, the first end plate is provided with a positioning portion, the second end plate is provided with a matching portion, one of the positioning portion and the matching portion includes a protrusion, and the other includes a groove matched with the protrusion, and the positioning portion is provided with the receiving groove;

[0009] Wherein, when the handle is in the storage state, the protrusion between the two battery packs and the handle can be located in the groove.

[0010] In one embodiment, the positioning portion includes the protrusion, and the receiving groove is provided on a first side surface of the protrusion facing away from the first end plate.

[0011] In one embodiment, the protrusion includes two first enclosing plates that are arranged opposite to each other and a second enclosing plate connected to the two first enclosing plates. The two first enclosing plates, the second enclosing plate and the first end plate are jointly arranged to form the accommodating groove.

[0012] In one embodiment, at least a portion of the height of each of the first enclosing panels is arranged to decrease in a direction away from the second enclosing panel.

[0013] In one embodiment, the handle comprises:

[0014] Two connecting sections, respectively opposite to the two first enclosure plates and spaced apart, one end of each connecting section being hinged to the first end plate;

[0015] A gripping section, two ends of which are respectively connected to the other ends of the two connecting sections;

[0016] Wherein, when the handle is in the storage state, the grip section is arranged close to the second baffle plate.

[0017] In one embodiment, the handle, the positioning portion, and the matching portion together form a combination unit, at least two of the combination units are provided, and at least two of the combination units are spaced apart along the length direction of the first end plate.

[0018] In one embodiment, an electrical plug structure is further included, wherein the electrical plug structure includes a matching male plug and a female plug, wherein one of the male plug and the female plug is disposed on the first end plate, and the other is disposed on the second end plate.

[0019] In one embodiment, one of the male plug and the female plug is protruding from the first end plate, and the other is recessed in the second end plate.

[0020] In one embodiment, the electrical plug structure is disposed adjacent to a periphery of the housing.

[0021] In one embodiment, a plurality of heat dissipation holes are further disposed on the peripheral side of the housing, and the plurality of heat dissipation holes are arranged at intervals and are disposed adjacent to the electrical plug structure.

[0022] In a second aspect, an embodiment of the present utility model provides an electrical device.

[0023] In one embodiment, a plurality of the battery packs are provided, and the plurality of the battery packs are stacked along the direction of gravity, and in two adjacent battery packs, the first end plate of one battery pack abuts against the second end plate of the other battery pack.

[0024] In an embodiment of the present utility model, when it is necessary to carry the battery pack, the handle can be switched to the unfolded state, which is convenient for the operator to hold the handle, so as to apply an external force through the handle, thereby carrying the battery pack to the position to be placed. When it is necessary to stack multiple battery packs, the handle can be switched to the stored state, so that the handle is stored in the receiving groove, and then the first end plate of one battery pack is abutted against the second end plate of another battery pack, that is, the stacking process of multiple battery packs can be realized. Since the handle does not protrude from the outer contour of the battery pack when it is in the stored state, this enables multiple battery packs to fit more closely when stacked, reducing the extra space occupied due to the protrusion of the handle. Since the handle is completely hidden in the receiving groove in the stored state, interference can be avoided when adjacent battery packs are stacked, which ensures that the battery packs can be stacked stably and safely, improving the stacking efficiency of the battery packs. In addition, when stacking, the handle is hidden, improving the overall aesthetics after multiple battery packs are stacked. Description of the Drawings

[0025] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the following drawings are only some embodiments of the present utility model. For those skilled in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0026] Figure 1 is a three-dimensional schematic diagram of a battery pack provided by the first embodiment of the present utility model;

[0027] Figure 2 is Figure 1 a three-dimensional schematic diagram of the battery pack shown (at one angle);

[0028] Figure 3 is Figure 1 a three-dimensional schematic diagram of the battery pack shown (at another angle);

[0029] Figure 4 is Figure 3 a partial enlarged schematic diagram of the position A shown;

[0030] Figure 5 is a three-dimensional schematic diagram of a battery pack provided by the second embodiment of the present utility model;

[0031] Figure 6 is an exploded schematic diagram of an electrical equipment provided by an embodiment of the present utility model.

[0032] Description of the Reference Numerals:

[0033] 100, electrical equipment;

[0034] 10, battery pack;

[0035] 11. Housing, 111. First end plate, 112. Second end plate, 113. Positioning part, 1131. Receiving groove, 1132. First baffle, 1133. Second baffle, 114. Fitting part;

[0036] 12. Handle, 121. Connecting section, 122. Gripping section;

[0037] 13. Electrical plug structure, 131. Male plug, 132. Female plug;

[0038] 14. Heat dissipation holes;

[0039] 15. Support part, 151. Support plate, 152. Support platform. Detailed implementation manners

[0040] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without making creative efforts belong to the protection scope of the present utility model. In addition, it should be understood that the specific implementation manners described herein are only used to illustrate and explain the present utility model, and are not used to limit the present utility model. In the present utility model, unless otherwise stated, the orientation words such as "upper" and "lower" usually refer to the upper and lower in the actual use or working state of the device, specifically the drawing direction in the accompanying drawings; and "inner" and "outer" are for the outline of the device.

[0041] In the related art, a battery pack is usually provided with a handle to facilitate an operator to hold the handle to carry and stack the battery pack. However, since the handle protrudes from the outer contour of the battery pack, when stacking multiple battery packs, the handle will interfere with the adjacent battery packs.

[0042] In view of this, the present utility model provides a battery pack and an electrical device. Figures 1 to 6 The structural schematic diagram of the embodiment of the battery pack and the electrical device provided by the present utility model. Since the handle of the battery pack provided by the present utility model is completely hidden in the receiving groove in the storage state, interference between adjacent battery packs during stacking can be avoided. The battery pack will be described in detail below in conjunction with the main drawings.

[0043] Refer to Figures 1 to 3 , Figure 1 is the three-dimensional schematic diagram of the battery pack provided by the first embodiment of the present utility model, Figure 2 is Figure 1 the three-dimensional schematic diagram of the battery pack shown (at an angle), Figure 3 isFigure 1 Schematic perspective view of the battery pack (from another angle) shown. The battery pack 10 includes a housing 11 and a handle 12. The housing 11 includes a first end plate 111 and a second end plate 112 which are oppositely arranged. On the side of the first end plate 111 facing away from the second end plate 112, there is a receiving groove 1131. The handle 12 is located within the receiving groove 1131 and is movably mounted on the housing 11, so that the handle 12 has an unfolded state where it moves out of the receiving groove 1131 and a received state where it is received into the receiving groove 1131. When the handle 12 is in the unfolded state, it is used for an operator to hold. When the handle 12 is in the received state, the first end plate 111 of one battery pack 10 among the two battery packs 10 is adapted to abut against the second end plate 112 of the other battery pack 10.

[0044] In an embodiment of the present utility model, when it is necessary to carry the battery pack 10, the handle 12 can be switched to the unfolded state, which is convenient for the operator to hold the handle 12, so as to apply an external force through the handle 12 to carry the battery pack 10 to the position to be placed. When it is necessary to stack multiple battery packs 10, the handle 12 can be switched to the received state, so that the handle 12 is received into the receiving groove 1131, and then the first end plate 111 of one battery pack 10 is abutted against the second end plate 112 of the other battery pack 10, and thus the stacking process of multiple battery packs 10 can be achieved. Since the handle 12 does not protrude beyond the outer contour of the battery pack 10 when it is in the received state, this enables multiple battery packs 10 to fit more closely when stacked, reducing the additional space occupied due to the protrusion of the handle 12. Since the handle 12 is completely hidden within the receiving groove 1131 in the received state, interference during the stacking of adjacent battery packs 10 can be avoided, which ensures that the battery packs 10 can be stacked stably and safely, improving the stacking efficiency of the battery packs 10. In addition, when stacked, the handle 12 is hidden, improving the overall aesthetics of the stacked multiple battery packs 10.

[0045] It should be noted that there are various ways for the handle 12 to be movably mounted on the housing 11. For example, in one embodiment, the handle 12 can slide along the depth direction of the receiving groove 1131 to realize the switching between the received state and the unfolded state of the handle 12. In other embodiments, the handle 12 can also be rotatably mounted on the housing 11 to realize the switching between the received state and the unfolded state of the handle 12. Specifically, the present application does not limit the specific way of the movement of the handle 12.

[0046] In one embodiment, the first end plate 111 is provided with a positioning portion 113, and the second end plate 112 is provided with a mating portion 114. One of the positioning portion 113 and the mating portion 114 includes a protrusion, and the other includes a groove adapted to the protrusion. The positioning portion 113 is provided with a receiving groove 1131. When the handle 12 is in the retracted state, the protrusion between the two battery packs 10 and the handle 12 can be located within the groove. Thus, when multiple battery packs 10 need to be stacked, the handle 12 can be switched to the retracted state, so that the handle 12 is received into the receiving groove 1131. Then, the protrusion of one battery pack 10 is cooperatively installed with the groove of another battery pack 10, and the stacking process of multiple battery packs 10 can be achieved. The cooperative installation of the protrusion and the groove facilitates the positioning of adjacent two battery packs 10 during stacking. In addition, the cooperation of the protrusions and grooves of adjacent two battery packs 10 enables multiple battery packs 10 to be locked to each other during stacking, forming a stable structure, which can prevent sliding or tipping during the movement or storage of the stacked battery packs 10, improving the safety of operation. When the handle 12 is in the retracted state, it is completely received within the receiving groove 1131, which saves space when the battery packs 10 are stacked or stored. In addition, the handle 12 can be switched between the deployed state and the retracted state, so that the depth of the receiving groove 1131 for receiving the handle 12 in the retracted state can be minimized as much as possible, and the space inside the housing 11 for installing the battery module can be maximized as much as possible. This design effectively increases the capacity of the battery module inside the battery pack 10, improves the energy density of the battery pack 10, and enables the battery pack 10 to provide a longer battery life and higher performance under the same volume.

[0047] Referring to Figure 3 and Figure 4 , Figure 4 is Figure 3A partial enlarged schematic diagram is shown. In one embodiment, the positioning portion 113 includes a protrusion, and the receiving groove 1131 is provided on the first side of the protrusion away from the first end plate 111. The handle 12 can be pivotally installed in the receiving groove 1131 formed by the protrusion, so that when the handle 12 is in the storage state, the handle 12 can be in a horizontal state. In this way, the groove depth of the receiving groove 1131 along the direction from the first end plate 111 to the second end plate 112 can be minimized, so that the space inside the housing 11 for installing the battery module can be increased as much as possible. This design effectively increases the battery module capacity inside the battery pack 10, improves the energy density of the battery pack 10, and enables the battery pack 10 to provide a longer battery life and higher performance at the same volume. In addition, since the notch of the receiving groove 1131 is set away from the first end plate 111, the user can easily rotate or fold the handle 12 to switch between the unfolded state and the storage state. This design greatly simplifies the operation process and improves the user experience. The handle 12 is received in the receiving groove 1131 formed by the protrusion, so that the battery pack 10 is more neat and beautiful in appearance. In addition, the receiving groove 1131 is provided on the protrusion for easy processing.

[0048] It should be noted that, in other embodiments, the protrusion also has a second side surface clamped between the first end plate 111 and the first side surface, and the accommodating groove 1131 can also be arranged on the second side surface of the protrusion. Specifically, the specific position of the accommodating groove 1131 on the protrusion can be set as needed, and the present application does not limit this.

[0049] In other embodiments, the positioning portion 113 may further include a groove, the receiving groove 1131 is provided on the inner wall surface of the groove, and the handle 12 may be pivotally mounted in the receiving groove 1131 formed on the inner wall surface of the groove. In addition, the inner wall surface of the groove includes a bottom wall surface and a plurality of side wall surfaces arranged around the bottom wall surface, and the receiving groove 1131 may be provided on the bottom wall surface or on the side wall surface. Specifically, the specific position of the receiving groove 1131 in the groove may be set as required, and the present application does not limit this.

[0050] Reference Figure 4In one embodiment, the protrusion includes two first enclosure plates 1132 arranged opposite to each other and a second enclosure plate 1133 connected to the two first enclosure plates 1132. The two first enclosure plates 1132, the second enclosure plate 1133 and the first end plate 111 are jointly arranged to form a receiving groove 1131. In this way, the side portion of the receiving groove 1131 is open. The open side portion allows the user to clearly see the internal structure of the receiving groove 1131, so that it is easier to find the correct installation position of the handle 12, which is convenient for the installation of the handle 12 and improves the installation efficiency of the handle 12. Since the side portion of the receiving groove 1131 is open, the user can directly push or pull the handle 12 from the side to achieve a quick switch between the unfolded state and the stored state. This design reduces obstacles in the switching process and improves the convenience of operation.

[0051] It should be noted that the first baffle plate 1132 and the second baffle plate are made of materials with wear resistance and corrosion resistance to ensure the durability and stability of the receiving slot 1131. Specifically, the first baffle plate 1132 and the second baffle plate can be made of metal, plastic or ceramic.

[0052] In one embodiment, the height of each first enclosure plate 1132 is at least partially decreasing in the direction away from the second enclosure plate 1133, so that when the user inserts the handle 12 into the receiving groove 1131 from the side opening, the decreasing height design allows the handle 12 to slide into the predetermined position more easily, reducing the resistance and difficulty during installation. In addition, the height of each first enclosure plate 1132 is at least partially decreasing, which can also avoid interference between the handle 12 and the first enclosure plate 1132 when installing the handle 12, reducing the risk of damage to the handle 12 or the enclosure plate during installation.

[0053] Refer again Figure 4 In one embodiment, the handle 12 includes two connecting sections 121 and a gripping section 122. The two connecting sections 121 are respectively opposite to the two first enclosure plates 1132 and are arranged at intervals. One end of each connecting section 121 is hinged to the first end plate 111. In this way, the handle 12 is allowed to be converted between storage and deployment multiple times without causing significant wear or damage to the structure, thereby improving the durability of the handle 12. The two ends of the gripping section 122 are respectively connected to the other ends of the two connecting sections 121. When the handle 12 is in the storage state, the gripping section 122 is arranged close to the second enclosure plate 1133. In this way, the space occupied by the handle 12 can be minimized. When the handle 12 is stored, the handle 12 is more coordinated with the first enclosure plate 1132 and the second enclosure plate 1133, and does not appear abrupt, thereby improving the aesthetics of the battery pack 10. And the risk of accidental collision or scratching of the handle 12 can be reduced.

[0054] Reference Figures 1 to 3 , in one embodiment, the handle 12, the positioning portion 113 and the mating portion 114 together form a combined unit. At least two combined units are provided, and the at least two combined units are spaced along the length direction of the first end plate 111. Thus, by providing at least two combined units and spacing them along the length direction of the first end plate 111, when stacking the battery pack 10, positioning is performed through at least two positioning portions 113 and the corresponding at least two mating portions 114. This design can ensure that the battery pack 10 maintains the correct position and angle during stacking, making the stacking of multiple battery packs 10 neat and stable. Through the setting of at least two positioning portions 113 and the corresponding at least two mating portions 114, the battery pack 10 can form a multi-point support structure during stacking. This multi-point support structure can enhance the firmness of the stacked battery packs 10 and prevent problems such as loosening or falling apart of the stacked battery packs 10 caused by factors such as vibration and collision during transportation or use. In addition, at least two handles 12 are correspondingly provided, and the handles 12 are spaced along the length direction of the housing 11. Thus, when the user operates the housing 11 through the handle 12, such as pushing, pulling or lifting, the setting of multiple handles 12 can disperse the force application points and avoid deformation or damage of the housing 11 caused by excessive single-point force.

[0055] Reference Figure 2 and Figure 3 , in one embodiment, the battery pack 10 further includes an electrical plug structure 13. The electrical plug structure 13 includes a matching male plug 131 and female plug 132. One of the male plug 131 and the female plug 132 is provided on the first end plate 111, and the other is provided on the second end plate 112. Thus, when multiple battery packs 10 need to be stacked or expanded, they can be conveniently connected together through the male plug 131 and the female plug 132 on the first end plate 111 and the second end plate 112. This design makes the stacking and expansion of the battery pack 10 simple and fast, improving the flexibility and scalability of the battery system. In addition, the matching design of the male plug 131 and the female plug 132 makes the connection or disconnection between the battery packs 10 very convenient. The user only needs to simply insert the male plug 131 of one battery pack 10 into the female plug 132 of another battery pack 10 to complete the connection; when disconnecting, it only needs to be gently pulled out. The matching male plug 131 and female plug 132 can ensure the stability and reliability of the connection and reduce potential safety hazards caused by loose connection.

[0056] It should be noted that the male plug 131 and the female plug 132 are of standardized design, and the technology of the male plug 131 and the female plug 132 is already mature. The specific structures of the male plug 131 and the female plug 132 are not elaborated in this application.

[0057] Refer again to Figure 2 andFigure 3 , in one embodiment, one of the male plug 131 and the female plug 132 protrudes from the first end plate 111, and the other is recessed in the second end plate 112. In this way, this design enables the male plug 131 and the female plug 132 to be precisely aligned when docked, avoiding misalignment or skew, thereby ensuring the stability and reliability of the connection. The precise docking also helps to reduce energy loss or signal interference caused by poor contact, and improves the transmission efficiency between the battery packs 10. Due to the obvious structural differences between the male plug 131 and the female plug 132 (one protrudes and the other is recessed), it is possible to quickly identify and locate the correct docking position during the connection process. This design of quick positioning not only improves the connection efficiency, but also reduces the operation difficulty, enabling users to more conveniently complete the connection operation between the battery packs 10.

[0058] Continue to refer to Figure 2 and Figure 3 , in one embodiment, the electrical plug structure 13 is disposed adjacent to the periphery of the housing 11. In this way, the edge space of the housing 11 can be fully utilized, avoiding occupying too much space in the central area inside the housing 11, thereby optimizing the internal space layout of the housing 11 and increasing the energy density of the battery pack 10. The electrical plug structure 13 being disposed adjacent to the periphery enables the operator to more conveniently access and operate the electrical plug when connecting or disconnecting the battery pack 10, improving the operation convenience and reducing the operation difficulty and the risk of misoperation. The periphery of the housing 11 is usually an area with better heat dissipation effect because the edge part has a larger contact area with air, which is conducive to heat dissipation. By disposing the electrical plug structure 13 at the periphery, this advantage can be utilized to improve the heat dissipation performance of the electrical plug, reduce its temperature rise, and thus extend the service life and reliability of the electrical plug.

[0059] Refer to Figures 1 to 3 , in one embodiment, a plurality of heat dissipation holes 14 are further provided on the peripheral side of the housing 11. The plurality of heat dissipation holes 14 are arranged at intervals and are disposed adjacent to the electrical plug structure 13. In this way, the setting of the heat dissipation holes 14 enables the heat inside the housing 11 to be dissipated to the surrounding environment more quickly. The plurality of heat dissipation holes 14 arranged at intervals can form an effective heat dissipation channel, further improving the heat dissipation efficiency. Since the electrical plug structure 13 may generate a certain amount of heat during use, by disposing the heat dissipation holes 14 adjacent to the electrical plug structure 13, key heat dissipation can be carried out for the electrical plug and its nearby area to ensure that the heat generated by the electrical plug structure 13 is dissipated in time and avoid local overheating. In addition, the setting of the plurality of heat dissipation holes 14 can also reduce the internal temperature of the battery pack 10, reduce the risk of thermal runaway, and improve the safety of the battery pack 10.

[0060] Refer to Figure 6 , Figure 6It is an explosion schematic diagram of an electrical device provided by an embodiment of the present utility model. An embodiment of the present utility model also provides an electrical device 100, which includes the battery pack 10 as described above. For the specific structure of the battery pack 10, refer to the above embodiment. Since this electrical device 100 adopts all the technical solutions of the above all embodiments, it has at least all the beneficial effects brought by the technical solutions of the above embodiments, which will not be elaborated one by one here.

[0061] In one embodiment, a plurality of battery packs 10 are provided, and the plurality of battery packs 10 are stacked in the up-down direction. Among two adjacent battery packs 10, the first end plate 111 of one battery pack 10 cooperates with the second end plate 112 of the other battery pack 10. In this way, the stacked arrangement can save space in the horizontal direction, so that the plurality of battery packs 10 occupy less area within a limited volume, improving the space utilization rate. By stacking a plurality of battery packs 10, the battery capacity and energy density of the entire electrical device 100 can be significantly increased. This helps to improve the performance and endurance of the electrical device 100 and meet the requirements of more application scenarios.

[0062] Refer to Figure 5 and Figure 6 , when a plurality of battery packs 10 are stacked, the lowermost battery pack 10 will contact the ground. Due to rainy weather, the ground is relatively wet, and long-term contact with the ground will cause problems such as rust on the housing 11 of the lowermost battery pack 10. To solve this problem, a support portion 15 is further provided on the second end plate of the lowermost battery pack 10. The support portion 15 includes a support plate 151 connected to the second end plate 112 and a plurality of support platforms 152 provided on the support plate 151. The plurality of support platforms 152 are spaced at intervals along the circumference of the support plate 151, and the plurality of support platforms 152 are used to contact the ground. In this way, the design of the support portion 15 makes the lowermost battery pack 10 no longer directly contact the ground. This interval avoids the direct contact between the housing 11 of the battery pack 10 and the wet ground, thereby greatly reducing the risk of rust and corrosion. The support platforms 152 are spaced at intervals along the circumference of the support plate 151, creating a good ventilation space at the bottom of the battery pack 10. This helps to reduce the humidity at the bottom of the battery pack 10, further reducing the possibility of rust, and at the same time improving the heat dissipation performance of the battery pack 10.

[0063] The above has introduced the embodiments of the present utility model in detail. Specific examples are used in this article to elaborate on the principle and implementation manner of the present utility model. The description of the above embodiments is only used to help understand the method and its core idea of the present utility model; at the same time, for those skilled in the art, according to the idea of the present utility model, there will be changes in the specific implementation manner and application scope. In summary, the content of this specification should not be construed as a limitation to the present utility model.

Claims

1. A battery pack, characterized in that: include: The housing comprises a first end plate and a second end plate which are arranged opposite to each other, wherein a receiving groove is arranged on a side of the first end plate which is away from the second end plate; A handle is located in the receiving groove and is movably mounted on the shell so that the handle has an extended state in which it moves to protrude from the receiving groove and a retracted state in which the handle is retracted into the receiving groove. When the handle is in the extended state, it is used for an operator to hold it. When the handle is in the retracted state, the first end plate of one of the two battery packs is suitable for abutting against the second end plate of the other battery pack.

2. The battery pack according to claim 1, characterized in that: The first end plate is provided with a positioning portion, the second end plate is provided with a matching portion, one of the positioning portion and the matching portion includes a protrusion, and the other includes a groove matched with the protrusion, and the positioning portion is provided with the receiving groove; Wherein, when the handle is in the storage state, the protrusion between the two battery packs and the handle can be located in the groove.

3. The battery pack according to claim 2, characterized in that: The positioning portion includes the protrusion, and the accommodating groove is arranged on a first side surface of the protrusion away from the first end plate.

4. The battery pack according to claim 3, characterized in that: The protrusion includes two first baffle plates arranged opposite to each other and a second baffle plate connected to the two first baffle plates. The two first baffle plates, the second baffle plate and the first end plate are jointly arranged to form the accommodating groove.

5. The battery pack according to claim 4, characterized in that: The height of at least a portion of each of the first enclosing plates is gradually reduced in a direction away from the second enclosing plate.

6. The battery pack according to claim 4, characterized in that: The handle comprises: Two connecting sections, respectively opposite to the two first enclosure plates and spaced apart, one end of each connecting section being hinged to the first end plate; A gripping section, two ends of which are respectively connected to the other ends of the two connecting sections; Wherein, when the handle is in the storage state, the grip section is arranged close to the second baffle plate.

7. The battery pack according to any one of claims 2 to 6, characterized in that: The handle, the positioning portion, and the matching portion together form a combination unit. At least two of the combination units are provided, and at least two of the combination units are spaced apart along the length direction of the first end plate.

8. The battery pack according to any one of claims 1 to 6, characterized in that: It also includes an electric plug structure, which includes a matching male plug and a female plug, one of the male plug and the female plug is arranged on the first end plate, and the other is arranged on the second end plate.

9. The battery pack according to claim 8, characterized in that: One of the male plug and the female plug is protruding from the first end plate, and the other is recessed in the second end plate.

10. The battery pack according to claim 8, characterized in that: The electric plug structure is arranged adjacent to the periphery of the housing.

11. The battery pack according to claim 10, characterized in that: A plurality of heat dissipation holes are also arranged on the peripheral side of the shell, and the plurality of heat dissipation holes are arranged at intervals and are arranged adjacent to the electric plug structure.

12. An electrical equipment, characterized in that: Comprising a battery pack as claimed in any one of claims 1 to 11.

13. The electrical equipment according to claim 12, characterized in that: A plurality of the battery packs are provided, and the plurality of the battery packs are stacked along the gravity direction. In two adjacent battery packs, the first end plate of one battery pack abuts against the second end plate of the other battery pack.

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