Energy storage device

Abstract

The utility model provides an energy storage device. The energy storage device comprises a box body; the battery pack box is mounted in the box body, and a plurality of charging cavities are formed in the battery pack box; and a plurality of locking structures, one side of the top of each charging cavity is provided with one locking structure, and the locking structures are detachably connected with the battery pack box. According to the utility model, the locking structure and the battery pack box are arranged to be a detachable structure, so that the locking structure can be mounted from the front side of the battery pack box, the mounting process is simple and convenient, the production efficiency can be greatly improved, and the operations such as replacement, maintenance and the like of the locking structure can be conveniently realized as required.

Description

Technical Field

[0001] The utility model belongs to the technical field of battery packs, and specifically relates to an energy storage device. Background Art

[0002] For box-type energy storage devices, multiple battery packs are inserted into the charging cavity in the box-type charging box to charge the multiple battery packs. In order to conveniently fix the battery pack in the charging cavity to realize the charging of the battery pack, a locking device is generally provided at the top of the charging cavity in the existing structure, so as to lock the battery pack when the battery pack is inserted into the charging cavity. However, the existing locking device part is an integrally formed structure with the battery pack box, so that when installing the lock tongue in the locking device, it is necessary to install it from the back of the battery pack box inward, and its installation method is complicated, resulting in very inconvenient installation. Utility Model Content

[0003] In view of the above shortcomings of the prior art, the purpose of the present utility model is to provide an energy storage device to solve the problem that the existing locking device part and the battery pack box are integrally formed, so that when installing the lock tongue in the locking device, it is necessary to install it from the back of the battery pack box inward, and its installation method is complicated, resulting in very inconvenient installation.

[0004] In order to achieve the above-mentioned purpose and other related purposes, the utility model provides an energy storage device, comprising:

[0005] Box;

[0006] A battery pack box, the battery pack box is installed in the box body, and a plurality of charging cavities are formed on the battery pack box;

[0007] A plurality of locking structures are provided on one side of the top of each charging cavity, and the locking structure is detachably connected to the battery pack box.

[0008] In one embodiment of the present invention, the locking structure comprises:

[0009] A mounting seat, the mounting seat is detachably connected to the battery pack box;

[0010] A rotating shaft, both ends of which are mounted between the battery pack box and the mounting seat;

[0011] A locking tongue is installed on the rotating shaft, and a spring is sleeved on the rotating shaft. The locking tongue fixes the battery pack in the charging cavity under the elastic force of the spring.

[0012] In one embodiment of the present invention, a receiving cavity is provided on the battery pack box, and the locking tongue is located in the receiving cavity.

[0013] In one embodiment of the present invention, grooves are provided on both sides of the top of the accommodating cavity, both ends of the rotating shaft are installed in the grooves, and the mounting seat is installed on the battery pack box and partially covers the grooves.

[0014] In one embodiment of the present invention, a mounting groove is provided on one side of the battery pack box located at the top of the charging cavity, and the mounting seat is detachably mounted in the mounting groove.

[0015] In one embodiment of the utility model, a protection switch is further included, which is arranged on the battery pack box and connected to the charging circuit of the energy storage device. When the box cover in the box body is closed, the protection switch is triggered to connect the charging circuit.

[0016] The utility model also provides an energy storage device, comprising:

[0017] Box;

[0018] A charging chamber is disposed in the box body, wherein a conductive end is provided in the charging chamber for transmitting power between the energy storage device and the battery pack;

[0019] The locking structure is detachably disposed on one side of the charging cavity. In a locked state, at least a portion of the locking structure contacts the battery pack to lock the battery pack; in an unlocked state, the battery pack can be released from the charging cavity.

[0020] In one embodiment of the present invention, a battery pack box is disposed in the box body, and the charging cavity is formed in the battery pack box.

[0021] In one embodiment of the present utility model, the locking structure is installed on the battery pack box, and the locking structure includes:

[0022] a locking assembly, configured to be mounted on the battery pack box and rotatable relative to the battery pack box to lock the battery pack in a locked state and release the battery pack in an unlocked state;

[0023] The mounting seat is configured to be detachably connected to the battery pack box and to restrict the locking assembly from being separated from the battery pack box.

[0024] In one embodiment of the present invention, the locking assembly comprises:

[0025] A rotating shaft, mounted on the battery pack box and rotatable relative to the battery pack box;

[0026] A locking tongue is installed on the rotating shaft, and a spring is sleeved on the rotating shaft. The locking tongue fixes the battery pack in the charging cavity under the elastic force of the spring.

[0027] The utility model proposes an energy storage device, which sets a locking structure as a detachable structure with a battery pack box. For example, a receiving cavity is set on the battery pack box, and grooves are set on both sides of the top of the receiving cavity. During installation, the locking tongue is installed on the rotating shaft, and then the two ends of the rotating shaft are installed in the grooves. Finally, the mounting seat is fixedly installed with the battery pack box and covers the groove, so that the rotating shaft with the locking tongue installed is restricted on the battery pack box, thereby realizing the installation of the locking structure, so that the locking structure can be installed from the front of the battery pack box. The installation process is simple and convenient, which can greatly improve the production efficiency, and the replacement and maintenance of the locking structure can be conveniently realized when necessary. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for describing the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0029] Figure 1 The utility model is a schematic structural diagram of an energy storage device in one embodiment.

[0030] Figure 2 This is a schematic structural diagram of an energy storage device in one embodiment of the utility model without a box cover.

[0031] Figure 3 The figure is a schematic diagram of the structure of a battery pack box in an energy storage device in one embodiment of the utility model.

[0032] Figure 4 for Figure 3 Schematic diagram of the enlarged structure at the middle edge A.

[0033] Figure 5 It is a schematic structural diagram of a mounting base and a battery pack box in one embodiment of the utility model.

[0034] Figure 6 for Figure 5 Schematic diagram of the enlarged structure at the middle edge B.

[0035] Figure 7 It is a partial exploded schematic diagram of a locking structure in one embodiment of the utility model.

[0036] Figure 8 The figure is a schematic diagram of the bottom structure of the energy storage device box in one embodiment of the utility model.

[0037] Fig. 9It is a front view of the interior of the energy storage device box in one embodiment of the utility model.

[0038] Fig.10 for Fig. 9 Schematic diagram of the CC heating cross-section structure along the middle edge.

[0039] Fig.11 The figure is a schematic structural diagram of a support member in a handle assembly according to an embodiment of the present invention.

[0040] Description of labels:

[0041] 100, energy storage device; 10, box body; 11, main body; 12, box cover; 13, battery pack box; 40, battery pack; 14, locking structure; 141, mounting seat; 142, rotating shaft; 143, spring; 144, locking tongue; 132, accommodating cavity; 133, groove; 1301, rotating groove; 134, mounting groove; 135, first connecting hole; 1411, second connecting hole; 145, positioning groove; 136, protection switch; 41, circuit board; 50, handle assembly; 51, support member; 52, pull rod; 501, slideway; 521, limit pin; 511, limit groove; 104, support foot; 105, limit groove; 106, groove; 107, protrusion. DETAILED DESCRIPTION

[0042] The following is an explanation of the implementation of the present invention through specific examples, and those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. The present invention can also be implemented or applied through other different specific implementations, and the details in this specification can also be modified or changed in various ways based on different viewpoints and applications without departing from the spirit of the present invention.

[0043] It should be noted that the illustrations provided in this embodiment are only used to schematically illustrate the basic concept of the present invention. Therefore, the drawings only show components related to the present invention rather than being drawn according to the number, shape and size of components in actual implementation. In actual implementation, the type, quantity and proportion of each component may be changed arbitrarily, and the component layout may also be more complicated.

[0044] See also Figures 1 to 11As shown, in the prior art, in order to conveniently fix the battery pack in the charging cavity to realize charging of the battery pack, a locking device is generally provided at the top of the charging cavity, so that the battery pack can be locked when the battery pack is inserted into the charging cavity. However, the existing locking device is partially integrated with the battery pack box, so that when installing the lock tongue in the locking device, it is necessary to install it from the back of the battery pack box inwards, and its installation method is complicated, resulting in very inconvenient installation, that is, it is necessary to first install the locking structure from the back of the battery pack box to the battery pack box, and then assemble the battery pack box with other structures such as the box body, and when the locking structure is damaged or needs to be replaced and maintained, it is necessary to disassemble the battery pack box as a whole to realize the disassembly of the locking structure, and the process is complicated and cumbersome, and only the lock tongue and the rotating shaft in the locking structure can be disassembled and replaced. Therefore, in order to solve the problem that the existing locking device is partially integrated with the battery pack box, so that when installing the lock tongue in the locking device, it is necessary to install it from the back of the battery pack box inwards, and its installation method is complicated, resulting in very inconvenient installation and other problems, the utility model proposes an energy storage device. Specifically, the energy storage device 100 includes a box body 10, a battery pack box 13 and a locking structure 14. The battery pack box 13 is installed in the box body 10, and a plurality of charging chambers 131 are provided in the battery pack box 13. The charging chamber 131 is used to insert a battery pack 40 and charge the battery pack 40. The locking structure 14 is provided on one side of the top of the charging chamber 131, so as to lock the battery pack 40 in the charging chamber 131 when the battery pack 40 is inserted into the charging chamber 131. In this embodiment, the locking structure 14 is detachably connected to the battery pack box 13 to facilitate the installation and removal of the locking structure 14. Specifically, the locking structure 14 is detachably configured on one side of the charging chamber 131. In the locked state, at least part of the locking structure 14 contacts the battery pack to lock the battery pack 40; in the unlocked state, the battery pack 40 can be released from the charging chamber 131.

[0045] See also Figure 2 , Figure 3 and Figure 7As shown, in this embodiment, the locking structure 14 includes a mounting seat 141 and a locking assembly. The locking assembly is configured to be installed on the battery pack box 13 and is located on one side of the top of the charging cavity 131. It can be rotated relative to the battery pack box 13 to lock the battery pack 40 in a locked state and release the battery pack 40 in an unlocked state. The mounting seat 141 is configured to be detachably connected to the battery pack box 13 and limit the locking assembly from being detached from the battery pack box 13. In this embodiment, the locking assembly includes a rotating shaft 142, a spring 143 and a locking tongue 144. The rotating shaft 142 is installed on the battery pack box 13 and can rotate relative to the battery pack box. Specifically, both ends of the rotating shaft 142 are rotatably installed between the mounting seat 141 and the battery pack box 13, and a spring 143 is sleeved on the rotating shaft 142. The locking tongue 144 is installed on the rotating shaft 142. For example, the spring 143 is set as a torsion spring. The locking tongue 144 locks the battery pack 40 located in the charging cavity 131 under the elastic force of the spring 143.

[0046] See also Figures 3 to 7 As shown, in this embodiment, a receiving cavity 132 is provided on the battery pack box 13, and the locking tongue 144 is located in the receiving cavity 132. The receiving cavity 132 is used to provide a space required for the locking tongue 144 to rotate, so that the locking tongue 144 can rotate in the receiving cavity 132 to achieve locking or unlocking of the battery pack 40. In this embodiment, grooves 133 are provided on both sides of the top of the accommodating cavity 132. For example, the groove 133 is semi-open to facilitate the installation of the rotating shaft 142. Both ends of the rotating shaft 142 are installed in the groove 133, and the mounting seat 141 is fixedly installed with the battery pack box 13, and the mounting seat 142 partially covers the groove 133, and the rotating shaft 142 with the locking tongue 144 is restricted on the battery pack box 13, thereby realizing the installation of the locking structure 14. At this time, both ends of the rotating shaft 142 are rotatably installed in the rotating groove 1301 formed between the mounting seat 141 and the groove 133, thereby realizing the overall installation of the locking structure 14.

[0047] See also Figures 3 to 7As shown, in this embodiment, the battery pack box 13 is provided with a mounting groove 134 on one side of the top of the charging cavity 131, and the mounting seat 141 is detachably mounted at the mounting groove 134. In this embodiment, the accommodating cavity 132 and the groove 133 are both located at the mounting groove 134, and the mounting groove 134 is provided with a first connecting hole 135, and the mounting seat 141 is correspondingly provided with a second connecting hole 1411. For example, the mounting seat 141 can be detachably mounted at the mounting groove 134 by fastening bolts passing through the first connecting hole 135 and the second connecting hole 141. The mounting groove 134 is provided with a plurality of positioning grooves 145 that cooperate with the mounting seat 141 for positioning, so that when the mounting seat 141 is fixed, the positioning and installation between the mounting seat 141 and the battery pack box 13 can be quickly and conveniently achieved, thereby improving the convenience of its installation.

[0048] See also Figures 3 to 7 As shown, in this embodiment, the installation process of the locking structure 14 is as follows: during installation, the locking tongue 144 is installed on the rotating shaft 142, and then the two ends of the rotating shaft 142 are installed in the groove 133, so that the locking tongue 144 is located in the accommodating cavity 132, and finally the mounting seat 141 is fixedly installed with the battery pack box 13 and covers the groove 133, so that the rotating shaft 142 with the locking tongue 144 installed is restricted on the battery pack box 13, thereby realizing the installation of the locking structure 14, that is, the locking structure 14 can be installed from the front of the battery pack box 13, and its installation process is simple and convenient.

[0049] See also Figure 1 As shown, in this embodiment, a conductive end that can transmit power between the energy storage device 100 and the battery pack 40 is provided in the charging cavity 131. The conductive end can be a conductive terminal of the plug-in type. When the battery pack 40 is inserted into the charging cavity 131, the battery pack 40 is connected to the charging circuit in the energy storage device 100 through the conductive terminal of the plug-in type, thereby obtaining a charging current.

[0050] It can be understood that for a battery pack with a wireless charging function, the conductive end can be a wireless power transmission module. When the battery pack is inserted into the charging cavity, the wireless power receiving module of the battery pack is coupled with the wireless power transmission module in the charging cavity to connect the battery pack with the charging circuit in the energy storage device, thereby obtaining a charging current.

[0051] Of course, in other embodiments, when the battery pack 40 is inserted into the charging cavity 131, the battery pack 40 is electrically connected to the energy storage device 100 through a conductive terminal such as a plug-in sheet or a wireless power transmission module, so that the battery pack 40 can output current to the outside through other output ports on the energy storage device 100.

[0052] It should be noted that the above-mentioned battery pack can be a cylindrical battery cell type battery pack or a soft pack type battery pack.

[0053] See also Figure 1 and Figure 2 As shown, the existing energy storage device 100 lacks a safety protection device. For example, when the box cover 10 is not closed, the charging circuit is in a connected state, and there is a hidden danger in the process of charging the battery pack 40. Therefore, in this embodiment, the box body 10 includes a body 11 and a box cover 12, and the battery pack box 13 is installed in the body 11. One side of the box cover 12 is rotatably connected to the body 11, and the other side is fixedly connected to the box cover 12 by a buckle or other means to achieve the cover between the box cover 12 and the body 11. In this embodiment, a protection switch 136 is provided on the battery pack box 13, and the protection switch 136 is connected to the charging circuit of the energy storage device 100. When the box cover 12 in the box body 10 is closed, the protection switch 136 is triggered, thereby connecting the charging circuit to charge the battery pack 40, so that the energy storage device 100 can charge the battery pack 40 only when the box cover 12 is completely closed. When the battery pack 40 needs to be taken out or the box cover 12 is opened, its charging circuit is in a disconnected state, which can effectively improve the safety of the energy storage device 100. Preferably, the protection switch 136 is provided on one side of the battery pack box 13 and is located away from the side where the box cover 12 is rotatably connected to the body 11, so that the protection switch 136 can be triggered only when the box cover 12 is completely closed, avoiding the protection switch 136 from being accidentally touched, thereby further improving the safety of the energy storage device 100.

[0054] Understandably, see Fig. 9 and Fig.10 As shown, in this embodiment, a plurality of circuit boards 41 are provided in the energy storage device 100, and the circuit boards 41 inside the box body 10 are arranged on the same horizontal plane, thereby reducing the height occupied by the circuit boards 40 inside the box body 10, effectively reducing the overall height of the energy storage device 100, and improving its space utilization.

[0055] See also Figures 9 to 11As shown, in this embodiment, the energy storage device 100 further includes a handle assembly 50, which is located on one side of the box 10 and partially located inside the box 10. Specifically, the handle assembly 50 includes a support member 51 and a pull rod 52, the support member 51 is fixedly connected to the box 10 and is located inside the box 10 near the top thereof, and a slideway 501 is formed between the support member 51 and the battery pack box 40, and the pull rod 52 is partially located inside the box 10 and is slidably connected to the slideway 501. For example, the support member 51 is a U-shaped structure, and the opening of the U-shaped structure faces the top of the energy storage device 100, the part of the pull rod 52 located inside the box 10 is installed in the U-shaped structure, and a slideway is formed between the U-shaped structure and the battery pack box 40, and the pull rod 52 slides in the U-shaped groove of the U-shaped structure, so as to play a guiding role when the pull rod 52 is pulled out of the box 10 or put into the box 10.

[0056] See also Figures 9 to 11 As shown, in the present embodiment, a limit pin 521 is provided at one end of the pull rod 52 located in the box body 10, and a limit groove 511 cooperating with the limit pin 521 is provided on the support member 51. When the pull rod 52 is pulled out from the inside of the box body 10 along the slide 501, the limit pin 521 is engaged in the limit groove 511 to limit the pull rod 52, that is, the cooperation between the limit pin 521 and the limit groove 511 can limit the maximum displacement of the pull rod 52.

[0057] See also Figure 1 and Figure 8 As shown, for the existing energy storage device 100, the top and bottom surfaces of the box 10 are generally relatively flat, and there is no structure that cooperates with each other. When multiple energy storage devices 100 are stacked up and down, due to the lack of a structure that engages or limits each other, they are extremely unstable after being stacked up, and are prone to tipping over or shifting, thereby causing danger. Therefore, in this embodiment, the bottom surface of the box 10 is designed as a first mating surface, and the top surface of the box 10 is designed as a second mating surface. The first mating surface and the second mating surface are respectively provided with a plurality of mutually mating structures. It can be understood that the first mating surface is the bottom surface of the body 11, and the second mating surface is the top surface of the box cover 12. When multiple energy storage devices 100 are stacked up and down, the engaging structures on the first mating surface and the second mating surface engage with each other to achieve limited fixation between different energy storage devices 100, thereby avoiding tipping over or shifting.

[0058] See also Figure 1 and Figure 8As shown, in this embodiment, a plurality of legs 104 are provided on the first mating surface, and a plurality of limiting grooves 105 are provided on the second mating surface. When a plurality of the energy storage devices 100 are stacked, the legs 104 are engaged in the limiting grooves 105, that is, a plurality of legs 104 are provided on the bottom surface of the body 11, and correspondingly, a plurality of limiting grooves 105 matched with the legs 104 are provided on the top surface of the box cover 12. The legs 104 play a supporting role when the energy storage device 100 is placed flat. When a plurality of energy storage devices 100 are stacked up and down, the legs 104 of the energy storage device 100 located at the upper side are engaged in the limiting grooves 105 located on the top surface of the box cover 12 in the energy storage device 100 located at the lower side, so as to realize the limiting fixation between the upper and lower energy storage devices 100. In some other embodiments, a groove 106 is formed on a portion of the surface of the first mating surface, and a protrusion 107 corresponding to the groove 106 is formed on a portion of the surface of the second mating surface. When multiple energy storage devices 100 are stacked up and down, the protrusion 107 on the energy storage device 100 located below is engaged in the groove 106 of the energy storage device 100 located above and below to further ensure the limiting fixation between the upper and lower energy storage devices 100.

[0059] The utility model proposes an energy storage device, which sets a locking structure as a detachable structure with a battery pack box. For example, a receiving cavity is set on the battery pack box, and grooves are set on both sides of the top of the receiving cavity. During installation, the locking tongue is installed on the rotating shaft, and then the two ends of the rotating shaft are installed in the grooves. Finally, the mounting seat is fixedly installed with the battery pack box and covers the groove, so that the rotating shaft with the locking tongue installed is restricted on the battery pack box, thereby realizing the installation of the locking structure, so that the locking structure can be installed from the front of the battery pack box. The installation process is simple and convenient, which can greatly improve the production efficiency, and the replacement and maintenance of the locking structure can be conveniently realized when necessary.

[0060] It is obvious to those skilled in the art that the present application is not limited to the details of the above exemplary embodiments, and that the present application can be implemented in other specific forms without departing from the spirit or essential features of the present application.

[0061] The above embodiments are only used to illustrate the technical solution of the present application and are not intended to limit it. Although the present application has been described in detail with reference to the preferred embodiments, a person skilled in the art should understand that the technical solution of the present application may be modified or replaced by equivalents without departing from the spirit and scope of the technical solution of the present application.

Claims

1. An energy storage device, characterized in that: include: Box; A battery pack box, the battery pack box is installed in the box body, and a plurality of charging chambers are arranged in the battery pack box; A plurality of locking structures are provided on one side of the top of each charging cavity, and the locking structure is detachably connected to the battery pack box.

2. The energy storage device according to claim 1, characterized in that: The locking structure comprises: A mounting seat, the mounting seat is detachably connected to the battery pack box; A rotating shaft, both ends of which are mounted between the battery pack box and the mounting seat; A locking tongue is installed on the rotating shaft, and a spring is sleeved on the rotating shaft. The locking tongue fixes the battery pack in the charging cavity under the elastic force of the spring.

3. The energy storage device according to claim 2, characterized in that: The battery pack box is provided with a receiving cavity, and the locking tongue is located in the receiving cavity.

4. The energy storage device according to claim 3, characterized in that: Grooves are arranged on both sides of the top of the accommodating cavity, and both ends of the rotating shaft are installed in the grooves. The mounting seat is installed on the battery pack box and partially covers the grooves.

5. The energy storage device according to claim 2, characterized in that: The battery pack box is provided with a mounting groove on one side of the top of the charging cavity, and the mounting seat can be detachably mounted in the mounting groove.

6. The energy storage device according to claim 1, characterized in that: It also includes a protection switch, which is arranged on the battery pack box and connected to the charging circuit of the energy storage device. When the box cover in the box body is closed, the protection switch is triggered to connect the charging circuit.

7. An energy storage device, characterized in that: include: Box; A charging chamber is disposed in the box body, wherein a conductive end is provided in the charging chamber for transmitting power between the energy storage device and the battery pack; A locking structure, detachably disposed on one side of the charging cavity, wherein in a locked state, at least a portion of the locking structure contacts the battery pack to lock the battery pack; In the unlocked state, the battery pack can be released from the charging cavity.

8. The energy storage device according to claim 7, characterized in that: A battery pack box is disposed in the box body, and the charging cavity is formed in the battery pack box.

9. The energy storage device according to claim 8, characterized in that: The locking structure is mounted on the battery pack box, and the locking structure includes: a locking assembly, configured to be mounted on the battery pack box and rotatable relative to the battery pack box to lock the battery pack in a locked state and release the battery pack in an unlocked state; The mounting seat is configured to be detachably connected to the battery pack box and to restrict the locking assembly from being separated from the battery pack box.

10. The energy storage device according to claim 9, characterized in that: The locking assembly comprises: A rotating shaft, mounted on the battery pack box and rotatable relative to the battery pack box; A locking tongue is installed on the rotating shaft, and a spring is sleeved on the rotating shaft. The locking tongue fixes the battery pack in the charging cavity under the elastic force of the spring.

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