Battery box and energy storage device thereof

Abstract

The utility model discloses a battery box and an energy storage device thereof. The battery box comprises a box body and a locking device, a sliding groove is formed in the surface of one side of the box body in the first direction, and a groove is formed in the bottom wall of the sliding groove. And the locking device is arranged on the other side of the box body in the first direction, the locking device is movably matched in the sliding groove of the adjacent box body, and the locking device can be switched between an unlocking state and a locking state. When the locking device is arranged in the sliding groove in a matched mode, the locking device is in a locking state. According to the battery box disclosed by the utility model, the box bodies are assembled by utilizing the locking devices and the sliding chutes, and when the locking devices are matched in the sliding chutes, the locking devices are in a locking state, so that the connection of two adjacent box bodies is realized, and the relative displacement range of the two adjacent box bodies is limited, thereby improving the stability of the battery box in the moving and using processes; meanwhile, the installation difficulty of the battery box is reduced, and the assembly efficiency of the battery box is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of battery boxes, in particular to a battery box and an energy storage device thereof. Background Art

[0002] In the related art, the energy storage system includes multiple battery boxes, and two adjacent battery boxes are stacked and installed through casters and interlocking buckles on the sides. However, in the above installation method, when the energy storage system is moved, the two adjacent battery boxes are prone to relative movement, which poses a safety hazard, and the connection method of the two adjacent battery boxes is relatively complicated, resulting in low assembly efficiency of the energy storage system. Utility Model Content

[0003] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, one purpose of the utility model is to provide a battery box that avoids relative displacement between two adjacent boxes, thereby improving the stability of the battery box during movement and use, while reducing the difficulty of installing the battery box and improving the assembly efficiency of the battery box.

[0004] Another object of the present invention is to provide an energy storage device using the battery box.

[0005] According to the battery box of the first aspect embodiment of the utility model, it includes: a box body, a slide groove is formed on the surface of one side of the box body in the first direction, and a groove is formed on the bottom wall of the slide groove; a locking device, the locking device is arranged on the other side of the first direction of the box body, the locking device can be movably engaged in the slide groove of the adjacent box body, and the locking device can be switched between an unlocked state and a locked state; wherein, when the locking device is engaged in the slide groove, the locking device is in the locked state.

[0006] According to the battery box of the embodiment of the utility model, the box body is assembled by using a locking device and a slide groove. When the locking device is engaged in the slide groove, the locking device is in a locked state, thereby realizing the connection between two adjacent boxes and limiting the range of relative displacement of the two adjacent boxes, thereby improving the stability of the battery box during movement and use, while reducing the difficulty of installing the battery box and improving the assembly efficiency of the battery box.

[0007] According to some embodiments of the present utility model, a portion of the bottom wall of the slide groove is recessed toward the center of the box body to form a groove, and the locking device is engaged in the groove when the locking device is in the locking state.

[0008] According to some embodiments of the present invention, the cross-section of the slide groove on the projection surface of the first direction is in the shape of a long strip or an arc.

[0009] According to some embodiments of the present invention, the slide groove extends along the second direction or the third direction, and the third direction, the second direction and the first direction intersect with each other.

[0010] According to some embodiments of the present utility model, the slide groove includes a positioning groove and a first slide groove, the positioning groove cooperates with the locking device to realize the positioning of the box body, and the first slide groove extends along the circumference of the battery box.

[0011] According to some embodiments of the utility model, the slide groove includes a first connecting segment and a second connecting segment that are connected to each other, the first connecting segment extends along a third direction, the second connecting segment extends along a second direction, the groove is formed on the first connecting segment and / or the second connecting segment, and the third direction, the second direction and the first direction are orthogonal to each other.

[0012] According to some embodiments of the present invention, the groove is located at one end of the slide groove in the length direction.

[0013] According to some embodiments of the utility model, the locking device includes a connecting piece, which is connected to the box body and forms an installation cavity; a movable block, one end of which extends into the installation cavity; wherein, when the locking device is in the locking state, at least a portion of the movable block extends into the groove.

[0014] According to some embodiments of the present utility model, the locking device further comprises an elastic member, wherein the elastic member is disposed in the mounting cavity, and the elastic member is suitable for abutting against the one end of the movable block.

[0015] According to some embodiments of the present utility model, the movable block includes a body and a boss, the boss is arranged on the outer peripheral surface of the body, and the boss abuts against the elastic member.

[0016] According to some embodiments of the present utility model, a protrusion is provided on the inner wall of the installation cavity, one end of the elastic member is sleeved on the protrusion, and the other end of the elastic member is sleeved on the body.

[0017] According to some embodiments of the utility model, a matching groove is formed on the inner wall of the installation cavity and at least one of the main bodies; the locking device also includes a guide column, at least one end of the guide column is matched in the matching groove, and the elastic member is sleeved on the guide column.

[0018] According to some embodiments of the utility model, the battery box further comprises a limit member, wherein the limit member is disposed on the box body, and when the locking device is in the locking state, the limit member cooperates with the connecting member or the movable block.

[0019] According to some embodiments of the utility model, the limit member is arranged on the side wall of the slide groove, the limit member and the groove are located on the same side in the length direction of the slide groove, and when the locking device is in the locking state, the free end of the limit member abuts against the outer peripheral surface of the locking device.

[0020] According to some embodiments of the utility model, the connecting member includes a connecting body; a first connecting part, the first connecting part is arranged on one side of the height direction of the connecting body, and the first connecting part is connected to the box body; a second connecting part, the second connecting part is arranged on the other side of the height direction of the connecting body, the second connecting part, the first connecting part and the connecting body jointly define the installation cavity, and the one end of the movable block passes through the second connecting part and extends into the installation cavity; wherein, at least one of the second connecting part and the first connecting part is detachably connected to the connecting body.

[0021] According to some embodiments of the present invention, a cross-sectional area of ​​the first connecting portion on a projection plane perpendicular to the first direction is smaller than a cross-sectional area of ​​the connecting body.

[0022] According to some embodiments of the utility model, at least one second limiting groove is formed on one of the side wall of the groove and the outer wall of the movable block, and at least one limiting protrusion is provided on the other of the side wall of the groove and the outer wall of the movable block, wherein when the locking device is in the locking state, the other end of the movable block extends into the groove, and the limiting protrusion fits in the second limiting groove.

[0023] According to some embodiments of the present invention, the cross-sectional shape of the groove is circular or polygonal.

[0024] According to some embodiments of the present invention, there are multiple slide grooves and multiple locking devices, the multiple slide grooves are spaced apart circumferentially along the one side of the box body, and the multiple locking devices are spaced apart circumferentially along the other side of the box body.

[0025] According to some embodiments of the present invention, the first direction is an up-down direction.

[0026] The energy storage device according to the second embodiment of the utility model comprises a battery box, which is the battery box according to the first embodiment of the utility model; and a battery, which is arranged in the body of the battery box.

[0027] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0029] Figure 1 is a schematic diagram of a battery box according to an embodiment of the utility model;

[0030] Figure 2 is a schematic diagram of a locking device of a battery box in an unlocked state according to a first embodiment of the utility model;

[0031] Figure 3 yes Figure 2 The enlarged view of the A part shown in the middle circle;

[0032] Figure 4 is a schematic diagram of a locking device of a battery box in a locked state according to the first embodiment of the utility model;

[0033] Figure 5 yes Figure 4 The enlarged view of the part B shown in the middle circle;

[0034] Figure 6 is a schematic diagram of a first battery box according to a first embodiment of the utility model;

[0035] Figure 7 yes Figure 6 The enlarged view of the C part circled in the middle;

[0036] Figure 8 yes Figure 6 The enlarged view of the D part circled in the middle;

[0037] Fig. 9 is a schematic diagram of a first battery box of a battery box according to a second embodiment of the utility model;

[0038] Fig.10 is a schematic diagram of a slide slot of a battery box according to a third embodiment of the utility model;

[0039] Fig.11 is a schematic diagram of a locking device for a battery box according to a fourth embodiment of the utility model;

[0040] Fig.12 is a schematic diagram of a locking device for a battery box according to a fifth embodiment of the utility model;

[0041] Fig.13 is a schematic diagram of a locking device for a battery box according to a sixth embodiment of the utility model;

[0042] Fig.14 is a schematic diagram of a locking device for a battery box according to a seventh embodiment of the utility model;

[0043] Fig.15 yes Fig.14 A schematic diagram of the locking device from another angle shown in FIG.

[0044] Fig.16 is a schematic diagram of a locking device for a battery box according to an eighth embodiment of the utility model;

[0045] Fig.17 is a schematic diagram of a locking device and a limiting member of a battery box according to an embodiment of the utility model;

[0046] Fig.18 yes Fig.17 A schematic diagram of the locking device and the limiting member at another angle shown in FIG.

[0047] Fig.19 yes Fig.17 A schematic diagram of the locking device and the limiting member at another angle shown in FIG.

[0048] Reference numerals:

[0049] 100: battery box;

[0050] 1: housing; 11: first battery box; 111: slide groove; 1111: positioning groove; 1112: first slide groove; 1113: first connecting section; 1114: second connecting section; 112: groove; 1121: second limiting groove; 12: second battery box; 2: locking device; 21: connecting piece; 211: mounting cavity; 212: protrusion; 213: first matching groove; 214: connecting body; 2141: opening; 215: first connecting part; 216, second connecting part; 22: elastic member; 23: movable block; 231: body; 2311: second matching groove; 232: boss; 24: guide column; 25: first limiting groove; 3: limiting piece. DETAILED DESCRIPTION

[0051] Reference below Figure 1-Figure 19 A battery box 100 according to an embodiment of the first aspect of the present invention is described.

[0052] like Figure 1-Figure 19 As shown, the battery box 100 according to the first embodiment of the utility model comprises a box body 1 and a locking device 2. In the description of the utility model, the meaning of "plurality" is two or more.

[0053] Specifically, a slide groove 111 is formed on one side surface of the box body 1 in the first direction, and a groove 112 is formed on the bottom wall of the slide groove 111. The locking device 2 is arranged on the other side of the first direction of the box body 1, and the locking device 2 can be movably engaged in the slide groove 111 of the adjacent box body 1, and the locking device 2 can switch between an unlocked state and a locked state. Among them, when the locking device 2 is engaged in the slide groove 111, the locking device 2 is in a locked state. It should be noted that the first direction can be an up-down direction, a left-right direction, or a front-back direction. No specific limitation is made here.

[0054] For example, in Figure 1-Figure 4 In the example, when a plurality of battery boxes 100 constitute an energy storage device, the plurality of battery boxes 100 are arranged along a first direction (for example, Figure 1 The battery boxes 100 are arranged in the vertical direction of the battery box 100, and the two adjacent battery boxes 100 are the first battery box 11 and the second battery box 12. A slide groove 111 is formed on the side of the first battery box 11 facing the second battery box 12, and a locking device 2 is provided on the side of the second battery box 12 facing the first battery box 11. The locking device 2 is suitable for moving in the slide groove 111. The cooperation between the slide groove 111 and the locking device 2 is conducive to positioning the stacking between the first battery box 11 and the second battery box 12.

[0055] When the locking device 2 is in the locked state, the locking device 2 is fitted in the slide groove 111, and the outer surfaces of the first battery box 11 and the second battery box 12 are substantially flush, and the first battery box 11 and the second battery box 12 are fixedly connected. Thus, the slide groove 111 can limit the range of motion of the locking device 2, avoid large relative displacement of two adjacent boxes 1, improve the stability of the battery box 100, and reduce the difficulty of installation between two adjacent boxes 1, thereby improving the assembly efficiency of the battery box 100.

[0056] According to the battery box 100 of the embodiment of the utility model, the box body 1 is assembled by using the locking device 2 and the slide groove 111. When the locking device 2 is engaged in the slide groove 111, the locking device 2 is in a locked state, thereby realizing the connection between the two adjacent box bodies 1 and avoiding a large relative displacement between the two adjacent box bodies 1, thereby improving the stability of the battery box 100 during movement and use, and at the same time reducing the installation difficulty of the battery box 100 and improving the assembly efficiency of the battery box 100.

[0057] According to some embodiments of the present invention, referring to Figure 1-Figure 4, the bottom wall of part of the slide groove 111 is concave toward the center of the box body 1 to form a groove 112, and the locking device 2 is in the locked state and fits in the groove 112. That is to say, when the locking device 2 is in the unlocked state, the locking device 2 is away from the groove 112, and the first battery box 11 and the second battery box 12 are not fixedly connected, that is, the first battery box 11 and the second battery box 12 can move relative to each other, which is convenient for users to move or repair the first battery box 11 or the second battery box 12 separately; when the locking device 2 is in the locked state, when the locking device 2 is fitted in the groove 112, the outer surfaces of the first battery box 11 and the second battery box 12 are flush, and the first battery box 11 and the second battery box 12 are fixedly connected. As a result, the stability of the battery box 100 is further improved.

[0058] Specifically, along the first direction, the distance between the bottom wall of the slide groove 111 and the surface of the first battery box 11 facing the second battery box 12 is smaller than the distance between the bottom wall of the groove 112 and the surface of the first battery box 11 facing the second battery box 12, that is, part of the bottom wall of the slide groove 111 is recessed to form the groove 112. During installation, after the locking device 2 of the second battery box 12 is engaged in the slide groove 111, the first battery box 11 and the second battery box 12 are initially positioned, and then the second battery box 12 is pushed to slide the locking device 2 into the groove 112, so as to achieve a stable connection between the first battery box 11 and the second battery box 12. As a result, the installation difficulty between the two adjacent boxes 1 is simplified, thereby improving the assembly efficiency of the battery box 100.

[0059] It should be noted that the size of the groove 112 is adapted to the size of the end of the locking device 2 away from the second battery box 12, so that the groove 112 can limit the circumference of the locking device 2 and prevent the locking device 2 from falling out of the groove 112 during the movement and use of the battery box 100, thereby improving the connection stability between the two adjacent boxes 1, and further improving the stability and safety of the battery box 100.

[0060] The cross-section of the slide groove 111 on the projection plane of the first direction is in the shape of a long strip or an arc. The cross-section of the slide groove 111 is in the shape of a long strip (similar to a runway). Correspondingly, the shape of the end of the locking device 2 is adapted to the shape of the slide groove 111. Thus, the adaptability of the locking device 2 and the slide groove 111 is increased, thereby improving the movement stability of the locking device 2 in the slide groove 111.

[0061] According to some embodiments of the present invention, referring to Figure 6-Figure 8 , the slide groove 111 is along the second direction (for example, Figure 1 ) or a third direction (for example, Figure 1The third direction, the second direction and the first direction intersect with each other. That is to say, during installation, the second battery box 12 can be moved along the second direction or the third direction after being stacked with the first battery box 11, so as to achieve the locking of the first battery box 11 and the second battery box 12. The size of the slide groove 111 in the second direction or the third direction is larger than the size of the end of the locking device 2 away from the second battery box 12. By increasing the size of the slide groove 111, the difficulty of positioning the second battery box 12 and the first battery box 11 in the slide groove 111 is reduced, thereby improving the stacking efficiency of the first battery box 11 and the second battery box 12.

[0062] According to other embodiments of the present invention, the slide groove 111 includes a positioning groove 1111 and a first slide groove 1112 . The positioning groove 1111 cooperates with the locking device 2 to realize the positioning of the box body 1 . The first slide groove 1112 extends along the circumference of the battery box 100 .

[0063] For example, in Fig. 9 In the example, the shapes of the surfaces of one side opposite to each other of the first battery box 11 and the second battery box 12 are both roughly rectangular, and the positioning groove 1111 is formed at the corner of the above-mentioned surface of the first battery box 11. The above-mentioned surface of the first battery box 11 is also provided with three first slide grooves 1112, and one of the three first slide grooves 1112 extends along the second direction, and the other two of the three first slide grooves 1112 extend along the third direction.

[0064] For example, four locking devices 2 are correspondingly provided on the second battery box 12, one of the four locking devices 2 corresponds to the positioning groove 1111, and the remaining three of the four locking devices 2 correspond to the three first slide grooves 1112. During installation, after one of the four locking devices 2 slides into the groove 112 of the positioning groove 1111, the second battery box 12 is rotated around the positioning groove 1111, so that the remaining locking devices 2 slide into the groove 112 of the first slide groove 1112, that is, the above-mentioned remaining locking devices 2 are all in a locked state, and the connection between the first battery box 11 and the second battery box 12 is realized. As a result, the connection difficulty of the two adjacent boxes 1 is reduced, and the connection and assembly efficiency of the two adjacent boxes 1 is improved.

[0065] According to some specific embodiments of the present invention, Fig.10 The slide 111 includes a first connecting section 1113 and a second connecting section 1114 that are connected to each other. The first connecting section 1113 extends along the third direction, and the second connecting section 1114 extends along the second direction. That is, the shape of the slide 111 is generally L-shaped. The groove 112 is formed on the first connecting section 1113 and / or the second connecting section 1114, and the third direction, the second direction and the first direction are orthogonal to each other. In other words, the groove 112 can be formed on the first connecting section 1113 (such as Fig.10As shown in the figure), during the installation process, the locking device 2 is initially positioned on the second connecting section 1114, and the locking device 2 can slide along the second connecting section 1114 to the first connecting section 1113, and then enter the groove 112 of the first connecting section 1113; alternatively, the groove 112 can also be formed on the second connecting section 1114 (not shown in the figure), and during the installation process, the locking device 2 is initially positioned on the first connecting section 1113, and the locking device 2 can slide along the first connecting section 1113 to the second connecting section 1114, and then enter the groove 112 of the second connecting section 1114.

[0066] As a result, the length of the slide groove 111 is increased, so that the locking device 2 can be turned in the slide groove 111 and then fit into the corresponding groove 112, thereby increasing the efficiency of the initial positioning of the first battery box 11 and the second battery box 12, thereby improving the assembly efficiency of the battery box 100, and at the same time can further ensure the connection reliability between the first battery box 11 and the second battery box 12, and avoid the first battery box 11 and the second battery box 12 from detaching from each other.

[0067] Further, refer to Figure 3-Figure 10 , the groove 112 is located at one end of the length direction of the slide groove 111. That is to say, the length of the slide groove 111 is greater than the length of the groove 112, and the groove 112 is provided at one end of the length direction of the slide groove 111. When the second battery box 12 is connected to the first battery box 11, the locking device 2 can first enter the end of the slide groove 111 away from the groove 112, and then push the second battery box 12 to rotate relative to the first battery box 11, so that the locking device 2 moves along the slide groove 111 toward the groove 112, which is convenient for adjusting the relative position of the first battery box 11 and the second battery box 12, thereby improving the matching efficiency and accuracy of the locking device 2 and the groove 112.

[0068] According to some specific embodiments of the present invention, Figure 3 , Figure 5 , Figure 7 , Figure 11-Figure 16 The locking device 2 includes a connecting member 21 and a movable block 23. The connecting member 21 is connected to the housing 1, and the connecting member 21 forms a mounting cavity 211. One end of the movable block 23 extends into the mounting cavity 211. One end of the connecting member 21 is connected to a side surface of the second battery box 12 facing the first battery box 11, and the other end of the movable block 23 can be flush with the other end of the connecting member 21 (i.e., the locking device 2 is in an unlocked state), or the other end of the movable block 23 can extend out of the other end of the movable block 23 (i.e., the locking device 2 is in a locked state).

[0069] Among them, the movable block 23 can move along the first direction in the installation cavity 211, that is, when the other end of the movable block 23 is subjected to force, the movable block 23 moves toward the direction of the second battery box 12 until the movable block 23 is completely retracted into the installation cavity 211 (that is, the locking device 2 switches from the locked state to the unlocked state); when the other end of the movable block 23 is not subjected to force, the end of the movable block 23 away from the second battery box 12 extends out of the installation cavity 211 (that is, the locking device 2 switches from the unlocked state to the locked state).

[0070] Furthermore, the locking device 2 further includes an elastic member 22, which is disposed in the mounting cavity 211, and is adapted to abut against one end of the movable block 23. When the other end of the movable block 23 is subjected to force, the movable block 23 moves toward the second battery box 12, and can compress the elastic member 22 in the mounting cavity 211 until the movable block 23 is completely retracted into the mounting cavity 211 (i.e., the locking device 2 switches from the locked state to the unlocked state); when the other end of the movable block 23 is not subjected to force, under the action of the restoring force of the elastic member 22, the end of the movable block 23 away from the second battery box 12 extends out of the mounting cavity 211 (i.e., the locking device 2 switches from the unlocked state to the locked state).

[0071] Specifically, Figure 4 and Figure 5 As shown, when the locking device 2 is in the locked state, at least part of the movable block 23 extends into the groove 112. That is to say, when the locking device 2 is in the unlocked state, the movable block 23 and the connecting member 21 can be stopped on the bottom wall of the slide groove 111, and at this time, the movable block 23 completely enters the installation cavity 211 to compress the elastic member 22; when the locking device 2 switches from the unlocked state to the locked state, the locking device 2 can move along the slide groove 111 to the groove 112, and under the action of the restoring force of the elastic member 22, part of the movable block 23 extends out of the installation cavity 211 to fit in the groove 112, and the groove 112 limits the circumferential movement of the movable block 23 to prevent the second battery box 12 from moving relative to the first battery box 11, thereby improving the stability of the battery box 100. Further, the movable block 23 includes a main body 231 and a boss 232, and the boss 232 is arranged on the outer peripheral surface of the main body 231, and the boss 232 is stopped against the elastic member 22. Refer to Figure 11-Figure 16 The cross-sectional shape of the movable block 23 along the first direction is roughly T-shaped, so that the connection area between the movable block 23 and the elastic member 22 is larger, which is beneficial to improving the stability of the boss 232 compressing the elastic member 22, and the stability of the restoring force of the elastic member 22 on the pushing of the movable block 23.

[0072] Furthermore, refer to Fig.13, a protrusion 212 is provided on the inner wall of the installation cavity 211, one end of the elastic member 22 is sleeved on the protrusion 212, and the other end of the elastic member 22 is sleeved on the body 231. The protrusion 212 is provided on the inner wall of the installation cavity 211, and the protrusion 212 extends along the first direction. At the same time, the protrusion 212 and the body 231 are coaxially arranged, so that the elastic member 22 is coaxially sleeved on the protrusion 212 and the body 231, thereby increasing the stability of the elastic member 22 in use. Among them, the boss 232 can be arranged away from the axial end of the body 231, so that part of the body 231 is located on the side of the boss 232 facing the second battery box 12, and when the above-mentioned other end of the elastic member 22 is sleeved on the body 231, the surfaces of the elastic member 22 and the boss 232 facing each other are stopped, thereby improving the installation stability of the elastic member 22 on the body 231, and improving the operation stability and use reliability of the locking device 2.

[0073] According to some embodiments of the utility model, a matching groove is formed on at least one of the inner wall of the installation cavity 211 and the body 231. The locking device 2 also includes a guide column 24, at least one end of which is fitted in the matching groove, and the elastic member 22 is sleeved on the guide column 24. In other words, the matching groove may be formed only on the inner wall of the installation cavity 211 (not shown); or, the matching groove may be formed only on the body 231 (not shown); or, the matching groove may be formed on both the inner wall of the installation cavity 211 and the body 231 (not shown). Fig.14 and Fig.16 shown).

[0074] Reference Fig.14 and Fig.16 The inner wall of the installation cavity 211 is formed with a first matching groove 213, and the body 231 is formed with a second matching groove 2311. For example, the first matching groove 213 is formed on the inner wall of the installation cavity 211 in the first direction, and the second matching groove 2311 is formed on the side of the body 231 facing the second battery box 12. The first matching groove 213 and the second matching groove 2311 are opposite to each other, so that one end of the guide column 24 is matched in the first matching groove 213, and the other end of the guide column 24 is matched in the second matching groove 2311. When the locking device 2 switches from the unlocked state to the locked state, the restoring force of the elastic member 22 pushes at least part of the movable block 23 to extend out of the mounting cavity 211. At this time, the end of the guide column 24 toward the main body 231 is separated from the bottom wall of the second matching groove 2311; when the locking device 2 switches from the locked state to the unlocked state, the movable block 23 compresses the elastic member 22 to make the bottom wall of the second matching groove 2311 close to the end of the guide column 24 until the bottom wall of the second matching groove 2311 stops on the end of the guide column 24.

[0075] Optionally, the guide post 24 may be installed in the first matching groove 213 by threading, welding or riveting.

[0076] In addition, refer to Figure 6 and Figure 7 , and combined with Figure 17-Figure 19 The battery box 100 further includes a limit member 3 , which is disposed on the box body 1 . When the locking device 2 is in a locked state, the limit member 3 cooperates with the connecting member 21 or the movable block 23 .

[0077] That is to say, when the locking device 2 is in the locked state, the limit member 3 can cooperate with the connecting member 21, or the limit member 3 can cooperate with the movable block 23, so as to utilize the limit member 3 to limit the relative displacement of the connecting member 21 and the movable block 23, thereby preventing the first battery box 11 and the second battery box 12 from moving in the first direction, thereby improving the installation stability of the battery box 100 in the first direction.

[0078] According to some embodiments of the utility model, the limiter 3 is provided on the side wall of the slide groove 111, the limiter 3 and the groove 112 are located on the same side of the length direction of the slide groove 111, and when the locking device 2 is in the locked state, the free end of the limiter 3 abuts against the outer peripheral surface of the locking device 2. When the side surface of the limiter 3 adjacent to the groove 112 abuts against the outer peripheral surface of the locking device 2, the limiter 3 and the groove 112 are used to limit the movement of the locking device 2 in the horizontal direction and the vertical direction, thereby further improving the installation stability of the battery box 100.

[0079] Optionally, a positioning protrusion is provided on the outer peripheral surface of the locking device 2, so that the limiting member 3 can limit the locking device 2 in the vertical direction by using the cooperation between the limiting member 3 and the positioning protrusion.

[0080] A first limiting groove 25 is formed on the connecting member 21 or the movable block 23. When the locking device 2 is in the locked state, the free end of the limiting member 3 fits in the first limiting groove 25. The first limiting groove 25 can be formed on the connecting member 21 (such as Figure 7 As shown), or the first limiting groove 25 can be formed on the movable block 23 (not shown). Figure 7 In the example, a first limiting groove 25 is formed on the connecting member 21, and the first limiting groove 25 extends along the circumference of the connecting member 21 to increase the connection selectivity between the limiting member 3 and the first limiting groove 25, so as to avoid the situation where the limiting member 3 cannot limit the locking device 2 when the extension directions of the first limiting groove 25 and the limiting member 3 are inconsistent, thereby improving the coordination efficiency between the limiting member 3 and the locking device 2.

[0081] During actual use, when the locking device 2 is in the locked state, the end of the limiting member 3 facing the locking device 2 is engaged in the first limiting groove 25, that is, the cooperation between the limiting member 3 and the locking device 2 is completed, thereby realizing the vertical limitation of the first battery box 11 and the second battery box 12, thereby improving the use stability of the battery box 100.

[0082] Among them, an arc-shaped opening is formed at one end of the limiter 3 facing the locking device 2 to increase the matching area of ​​the limiter 3 and the locking device 2 and improve the matching stability of the limiter 3 and the locking device 2. For example, the limiter 3 can be fixed in the slide groove 111, and the limiter 3 can be matched with the first limiter groove 25 during the process of the locking device 2 moving to the groove 112; or, after the locking device 2 is matched in the groove 112, the limiter 3 is moved to make the limiter 3 match in the first limiter groove 25.

[0083] According to some embodiments of the utility model, the connector 21 includes a connecting body 214, a first connecting portion 215, and a second connecting portion 216. The first connecting portion 215 is arranged on one side of the connecting body 214 in the height direction, and the first connecting portion 215 is connected to the box body 1. The second connecting portion 216 is arranged on the other side of the connecting body 214 in the height direction, and the second connecting portion 216, the first connecting portion 215, and the connecting body 214 jointly define a mounting cavity 211, and one end of the movable block 23 passes through the second connecting portion 216 and extends into the mounting cavity 211. For example, an opening 2141 is formed on the second connecting portion 216, and one end of the movable block 23 passes through the opening 2141 and extends into the mounting cavity 211.

[0084] Among them, at least one of the second connection part 216 and the first connection part 215 is detachably connected to the connection body 214. For example, only the first connection part 215 can be detachably provided on the connection body 214 (such as Figure 11-Figure 14 Alternatively, only the second connecting portion 216 may be detachably disposed on the connecting body 214 (as shown in Figure 3 , Figure 5 and Fig.16 Alternatively, the second connection portion 216 and the first connection portion 215 can be detachably connected to the connection body 214 (not shown).

[0085] like Figure 11-Figure 14 As shown, when only the first connection part 215 is detachably provided on the connection body 214, during the installation process of the locking device 2, the side of the connection body 214 connected to the first connection part 215 is opened, and the movable block 23 can enter the installation cavity 211 along the open side of the connection body 214, and the elastic member 22 can also enter the installation cavity 211 from the open side of the connection body 214, and then the first connection part 215 is installed on the open side of the connection body 214 to complete the assembly of the locking device 2. Then, the end of the first connection part 215 away from the connection body 214 is connected to the second battery box 12, that is, the locking device 2 is connected to the second battery box 12. As a result, the assembly difficulty of the locking device 2 is reduced, and when the connection member 21, the movable block 23 and the elastic member 22 are damaged, only the damaged parts can be replaced, thereby reducing the maintenance cost of the locking device 2 and extending the service life of the locking device 2.

[0086] like Figure 3 , Figure 5 and Fig.16 As shown, when only the second connection part 216 is detachably provided on the connection body 214, during the installation process of the locking device 2, the side of the connection body 214 connected to the second connection part 216 is opened, the elastic member 22 and the movable block 23 are sequentially installed into the installation cavity 211 from the open side of the connection body 214, and then the second connection part 216 is connected to the open side of the connection body 214 to complete the assembly of the locking device 2. The end of the first connection part 215 away from the connection body 214 is connected to the second battery box 12, that is, the locking device 2 is connected to the second battery box 12.

[0087] Furthermore, the cross-sectional area of ​​the first connection portion 215 on the projection plane perpendicular to the first direction is smaller than the cross-sectional area of ​​the connection body 214. While achieving the connection between the first connection portion 215 and the second battery box 12, it is beneficial to the lightweight design of the connector 21 and avoids interference between the connector 21 and surrounding components, thereby improving the use stability of the connector 21 and extending the service life of the connector 21.

[0088] Optionally, at least one second limiting groove 1121 is formed on one of the side wall of the groove 112 and the outer wall of the movable block 23, and at least one limiting protrusion is provided on the other of the side wall of the groove 112 and the outer wall of the movable block 23. That is, when the second limiting groove 1121 is formed on the side wall of the groove 112, the outer wall of the movable block 23 is provided with a limiting protrusion (such as Fig.10 or, when the side wall of the groove 112 is provided with a limiting protrusion, a second limiting groove 1121 (not shown) is formed on the outer wall of the movable block 23.

[0089] When the locking device 2 is in the locked state, the other end of the movable block 23 extends into the groove 112, and the limiting protrusion is engaged in the second limiting groove 1121. Thus, the cooperation between the limiting protrusion and the second limiting groove 1121 further limits the movement of the first battery box 11 and the second battery box 12 in the first direction, thereby increasing the connection stability between the first battery box 11 and the second battery box 12.

[0090] Optionally, refer to Figure 8-Figure 10 The cross-sectional shape of the groove 112 is circular or polygonal. The shape of the end of the movable block 23 fitted in the groove 112 is correspondingly circular or polygonal, which increases the contact area between the movable block 23 and the groove 112 and is conducive to increasing the matching stability of the movable block 23 and the groove 112.

[0091] According to some specific embodiments of the present invention, there are multiple slide grooves 111 and multiple locking devices 2, multiple slide grooves 111 are spaced apart along the circumference of the one side of the box body 1, and multiple locking devices 2 are spaced apart along the circumference of the other side of the box body 1. Figure 6 and Fig. 9 Four slide grooves 111 are formed on the first battery box 11, and the four slide grooves 111 are respectively formed at the four corners of the first battery box 11. Correspondingly, four locking devices 2 are provided on the second battery box 12, and the four locking devices 2 are respectively provided at the four corners of the second battery box 12, so that the four locking devices 2 and the four slide grooves 111 are opposite to each other, thereby increasing the force balance at the connection between the first battery box 11 and the second battery box 12, thereby improving the connection stability between the first battery box 11 and the second battery box 12, and improving the operation stability of the battery box 100.

[0092] According to some embodiments of the present invention, the first direction is an up-down direction. Figure 1-Figure 5 In the example, the first battery box 11 is located below the second battery box 12. During the installation of the battery box 100, the first battery box 11 can be fixed at a certain place, and then the second battery box 12 can be moved above the first battery box 11, so that the locking device 2 is initially positioned in the slide groove 111, and then the second battery box 12 is pushed to slide the locking device 2 into the groove 112, so as to achieve a stable connection between the first battery box 11 and the second battery box 12. The second battery box 12 can increase the matching stability of the locking device 2 and the groove 112 under the action of gravity.

[0093] The energy storage device (not shown) according to the second embodiment of the utility model includes a battery box 100 and a battery. The battery box 100 is the battery box 100 according to the first embodiment of the utility model. The battery is arranged in the box body 1 of the battery box 100.

[0094] The energy storage device according to the embodiment of the present utility model, by adopting the above-mentioned battery box 100, is conducive to improving the installation and use stability of the energy storage device, thereby improving the operation stability of the energy storage device.

[0095] Other structures and operations of the battery box 100 according to the embodiment of the utility model are known to ordinary technicians in the field and will not be described in detail here.

[0096] In the description of the present invention, it should be understood that the terms "center", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "horizontal", "bottom", "inside", "outside", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0097] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0098] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example.

[0099] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A battery box (100), characterized in that: include: A box body (1), wherein a slide groove (111) is formed on a surface of one side in a first direction of the box body (1); A locking device (2), the locking device (2) being arranged on the other side of the box body (1) in the first direction, the locking device (2) being movably engaged in the sliding groove (111) adjacent to the box body (1), and the locking device (2) being switchable between an unlocked state and a locked state; Wherein, when the locking device (2) is engaged in the sliding groove (111), the locking device (2) is in the locking state.

2. The battery box (100) according to claim 1, characterized in that: A portion of the bottom wall of the slide groove (111) is recessed toward the center of the box body (1) to form a groove (112); when the locking device (2) is in the locked state, the locking device (2) fits in the groove (112).

3. The battery box (100) according to claim 2, characterized in that: The cross-section of the slide groove (111) on the projection plane in the first direction is in the shape of a long strip or an arc.

4. The battery box (100) according to claim 3, characterized in that: The slide groove (111) extends along a second direction or a third direction, and the third direction, the second direction and the first direction intersect with each other.

5. The battery box (100) according to claim 3, characterized in that: The slide groove (111) comprises a positioning groove (1111) and a first slide groove (1112); the positioning groove (1111) cooperates with the locking device (2) to achieve positioning of the box body (1); and the first slide groove (1112) extends along the circumference of the battery box (100).

6. The battery box (100) according to claim 3, characterized in that: The slide groove (111) comprises a first connecting section (1113) and a second connecting section (1114) which are connected to each other, the first connecting section (1113) extends along a third direction, the second connecting section (1114) extends along a second direction, the groove (112) is formed on the first connecting section (1113) and / or the second connecting section (1114), and the third direction, the second direction and the first direction are orthogonal to each other.

7. The battery box (100) according to any one of claims 2 to 6, characterized in that: The groove (112) is located at one end of the sliding groove (111) in the length direction.

8. The battery box (100) according to any one of claims 2 to 6, characterized in that: The locking device (2) comprises: A connecting piece (21), the connecting piece (21) being connected to the box body (1), the connecting piece (21) forming a mounting cavity (211); A movable block (23), one end of the movable block (23) extending into the installation cavity (211); Wherein, when the locking device (2) is in the locking state, at least a portion of the movable block (23) extends into the groove (112).

9. The battery box (100) according to claim 8, characterized in that: The locking device (2) further comprises: An elastic member (22), the elastic member (22) being arranged in the installation cavity (211), the elastic member (22) being suitable for abutting against the one end of the movable block (23).

10. The battery box (100) according to claim 9, characterized in that: The movable block (23) comprises a main body (231) and a boss (232); the boss (232) is arranged on the outer peripheral surface of the main body (231); and the boss (232) abuts against the elastic member (22).

11. The battery box (100) according to claim 10, characterized in that: The inner wall of the installation cavity (211) is provided with a protrusion (212), one end of the elastic member (22) is sleeved on the protrusion (212), and the other end of the elastic member (22) is sleeved on the body (231).

12. The battery box (100) according to claim 10, characterized in that: A matching groove is formed on at least one of the inner wall of the installation cavity (211) and the body (231); The locking device (2) further comprises: A guide post (24), wherein at least one end of the guide post (24) is fitted in the fitting groove, and the elastic member (22) is sleeved on the guide post (24).

13. The battery box (100) according to claim 8, characterized in that: Also includes: A limiting member (3), wherein the limiting member (3) is arranged on the box body (1), and when the locking device (2) is in the locked state, the limiting member (3) cooperates with the connecting member (21) or the movable block (23).

14. The battery box (100) according to claim 13, characterized in that: The limiting member (3) is arranged on a side wall of the slide groove (111); the limiting member (3) and the groove (112) are located on the same side of the slide groove (111) in a length direction; and when the locking device (2) is in the locked state, the free end of the limiting member (3) abuts against the outer peripheral surface of the locking device (2).

15. The battery box (100) according to claim 8, characterized in that: The connecting member (21) comprises: Connect the body (214); a first connection portion (215), the first connection portion (215) being arranged on one side of the connection body (214) in a height direction, the first connection portion (215) being connected to the box body (1); a second connection portion (216), the second connection portion (216) being arranged on the other side of the connection body (214) in the height direction, the second connection portion (216), the first connection portion (215) and the connection body (214) jointly defining the installation cavity (211), and the one end of the movable block (23) passing through the second connection portion (216) and extending into the installation cavity (211); Wherein, at least one of the second connecting portion (216) and the first connecting portion (215) is detachably connected to the connecting body (214).

16. The battery box (100) according to claim 15, characterized in that: On a projection plane perpendicular to the first direction, a cross-sectional area of ​​the first connection portion (215) is smaller than a cross-sectional area of ​​the connection body (214).

17. The battery box (100) according to claim 8, characterized in that: At least one second limiting groove (1121) is formed on one of the side wall of the groove (112) and the outer wall of the movable block (23), and at least one limiting protrusion is provided on the other of the side wall of the groove (112) and the outer wall of the movable block (23). Wherein, when the locking device (2) is in the locking state, the other end of the movable block (23) extends into the groove (112), and the limiting protrusion fits into the second limiting groove (1121).

18. The battery box (100) according to claim 2, characterized in that: The cross-sectional shape of the groove (112) is circular or polygonal.

19. The battery box (100) according to claim 1, characterized in that: There are a plurality of the slide grooves (111) and the locking devices (2); the plurality of the slide grooves (111) are spaced apart along the circumference of the one side of the box body (1); and the plurality of the locking devices (2) are spaced apart along the circumference of the other side of the box body (1).

20. The battery box (100) according to claim 1, characterized in that: The first direction is the up-down direction.

21. An energy storage device, characterized in that: include: A battery box (100), wherein the battery box (100) is the battery box (100) according to any one of claims 1 to 20; A battery is arranged in a box body (1) of the battery box (100).

Images