Battery pack and energy storage equipment

Abstract

The utility model belongs to the technical field of energy storage, and discloses a battery pack and energy storage equipment, the battery pack comprises a shell, a mounting box and a sealing piece, a battery assembly is arranged in the shell, and the battery assembly comprises a battery cell, a circuit board connected with the battery cell and other circuit elements. A mounting groove is formed in the side wall of the shell, the mounting box is detachably mounted in the mounting groove, an acquisition plate is arranged in the mounting box, the acquisition plate is electrically connected with the battery assembly and is used for acquiring electrical parameters of the battery assembly, and the sealing element is detachably mounted on the shell and is used for sealing the mounting groove so as to seal the mounting box in the shell. According to the battery pack, internal elements can be conveniently replaced, the maintenance operation is simple, the maintenance time is short, other installation problems are not easily caused in the maintenance process, and the maintenance reliability is improved.

Description

Technical Field

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

[0002] Existing energy storage equipment is usually composed of multiple battery packs stacked vertically. In actual operation, if the components and circuit boards inside a battery pack need to be replaced, the battery pack to be maintained and other battery packs stacked on it need to be removed, and the top cover of the battery pack to be maintained needs to be opened for maintenance. This will result in a large workload and long maintenance time for the battery pack, and other installation problems may be easily caused by disassembling and installing the battery pack during the maintenance process. Utility Model Content

[0003] The first object of the utility model is to provide a battery pack, which can easily replace internal components, has simple maintenance operations, short maintenance time, and is not prone to other installation problems during the maintenance process, thereby improving maintenance reliability.

[0004] The second purpose of the utility model is to provide an energy storage device, which has simple maintenance operation, a long maintenance time, is not likely to cause other installation problems during the maintenance process, and has high maintenance reliability.

[0005] To achieve this purpose, the utility model adopts the following technical solutions:

[0006] The utility model discloses a battery pack, comprising: a shell, a battery assembly is arranged inside the shell, and a mounting groove is arranged on the side wall of the shell; a mounting box, the mounting box is detachably mounted in the mounting groove, a collection board is arranged inside the mounting box, the collection board is electrically connected to the battery assembly, and the collection board is used to collect electrical parameters of the battery assembly; a sealing member, the sealing member is detachably mounted on the shell and is used to seal the mounting groove, so as to seal the mounting box inside the shell.

[0007] In some embodiments, the inner side wall of the mounting groove has a protruding mounting flange, and the mounting box is detachably mounted on the mounting flange.

[0008] In some specific embodiments, a first connecting hole is provided on the mounting flange, a second connecting hole corresponding to the first connecting hole is provided on the mounting box, and the battery pack also includes a connecting member, which passes through the second connecting hole and the first connecting hole to install the mounting box in the mounting groove.

[0009] In some embodiments, the installation box includes a box body and a cover body, one end of the box body is open, the cover body is buckled on the open end of the box body, a plurality of avoidance holes are provided on the side of the box body away from the cover body, and the collection board is provided with connection terminals corresponding to the plurality of avoidance holes, and the connection terminals are electrically connected to the battery assembly.

[0010] In some specific embodiments, one of the box body and the cover body is provided with a latching protrusion, and the other of the box body and the cover body is provided with a latching hole that cooperates with the latching protrusion.

[0011] In some embodiments, a first fixing hole is provided on the side wall of the shell, and a second fixing hole is provided on the seal corresponding to the first fixing hole; the battery pack also includes a fixing member, which passes through the second fixing hole and the first fixing hole to install the seal on the side wall of the shell.

[0012] In some embodiments, the sealing member includes a sealing plate and a sealing gasket, wherein the sealing plate is detachably mounted on the shell, and the sealing gasket is disposed around the mounting groove and is sandwiched between the sealing plate and a side wall of the shell.

[0013] In some embodiments, the battery pack further includes a decorative plate, which is detachably mounted on a side wall of the shell and is capable of covering the seal.

[0014] In some specific embodiments, a hanging portion is provided on the side wall of the shell; the decorative panel includes a panel body and a panel bracket, the two ends of the panel bracket are respectively connected to the two opposite sides of the panel body, and the panel bracket is provided with a hanging groove that cooperates with the hanging portion.

[0015] The utility model also discloses an energy storage device, comprising a plurality of the battery packs mentioned above, wherein the plurality of battery packs are stacked in a vertical direction.

[0016] The beneficial effects of the battery pack of the utility model are as follows: the components and circuit boards inside the battery pack can be maintained through the installation grooves on the side walls after the seals are removed, avoiding the need to disassemble other battery packs and the top covers of the battery packs during maintenance, thereby improving the convenience of maintenance, saving maintenance time, and improving the efficiency of maintenance. It is also less likely to cause other installation problems during the maintenance process, thereby improving maintenance reliability. In addition, the modular design of the acquisition board improves the protection of the circuit boards of the battery assembly, and also makes the wiring and maintenance of the acquisition board more convenient. At the same time, the wiring of the acquisition board is external wiring of the battery pack, which saves the internal space of the shell and improves the volume energy density of the battery pack.

[0017] The beneficial effects of the energy storage device of the present invention: Due to the energy storage device described above, the components and circuit boards inside each battery pack can be maintained through the mounting grooves on the side walls after the seals are removed, avoiding the need to disassemble other battery packs and the top covers of the battery packs during maintenance, thereby improving maintenance convenience, saving maintenance time, and improving maintenance efficiency. It is also less likely to cause other installation problems during the maintenance process, thereby improving maintenance reliability. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the structure of a battery pack according to an embodiment of the utility model;

[0019] Figure 2 It is a schematic diagram of the exploded structure of a battery pack according to an embodiment of the present utility model;

[0020] Figure 3 It is a schematic diagram of the exploded structure of the installation box of the embodiment of the utility model;

[0021] Figure 4 It is a schematic diagram of the exploded structure of the sealing member of the embodiment of the utility model;

[0022] Figure 5 It is a schematic diagram of the exploded structure of the decorative plate of the embodiment of the utility model;

[0023] Figure 6 It is a structural schematic diagram of the energy storage device of an embodiment of the utility model.

[0024] Reference numerals:

[0025] 1000, battery pack;

[0026] 100, housing; 110, mounting groove; 120, mounting flange; 121, first connecting hole; 130, first fixing hole; 140, hanging portion;

[0027] 200. Battery assembly;

[0028] 300, installation box; 301, second connection hole; 310, box body; 311, clamping protrusion; 312, avoidance hole; 320, cover body;

[0029] 400, acquisition board; 410, connection terminal;

[0030] 500, sealing member; 501, second fixing hole; 510, sealing plate; 520, sealing pad;

[0031] 600, decorative plate; 610, plate body; 611, first panel; 612, second panel; 620, plate bracket; 621, hanging plate; 6211, hanging groove; 622, connecting plate; 630, connecting screws;

[0032] 700, connecting parts; 800, fixing parts. DETAILED DESCRIPTION

[0033] The present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the present invention, rather than to limit the present invention. It should also be noted that, for ease of description, only the parts related to the present invention, rather than all structures, are shown in the accompanying drawings.

[0034] In the description of the present invention, unless otherwise clearly specified and limited, the terms "connected", "connected", and "fixed" 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 an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0035] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0036] In the description of this embodiment, the terms "upper", "lower", "right", etc., are based on the directions or positions shown in the drawings, and are only for the convenience of description and simplified operation, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation of the present invention. In addition, the terms "first" and "second" are only used to distinguish in the description and have no special meaning.

[0037] Reference below Figure 1-Figure 5 The specific structure of the battery pack 1000 according to the embodiment of the present utility model is described.

[0038] The utility model discloses a battery pack 1000, such as Figure 1 and Figure 3As shown, the battery pack 1000 of this embodiment includes a housing 100, an installation box 300 and a sealing member 500. A battery assembly 200 is provided inside the housing 100. The battery assembly 200 includes a battery cell, a circuit board connected to the battery cell, and other circuit elements. A mounting groove 110 is provided on the side wall of the housing 100. The installation box 300 is detachably mounted in the mounting groove 110. A collection board 400 is provided inside the installation box 300. The collection board 400 is electrically connected to the battery assembly 200. The collection board 400 is used to collect electrical parameters of the battery assembly 200. The sealing member 500 is detachably mounted on the housing 100 and is used to seal the mounting groove 110 so as to seal the installation box 300 inside the housing 100. It is understandable that, in the actual maintenance process, it is only necessary to remove the seal 500 from the side wall of the battery pack 1000 to expose the installation box 300, so that the acquisition board 400 can be maintained very conveniently. The acquisition board 400 is electrically connected to the battery assembly 200. If the battery assembly 200 needs to be replaced or repaired, the installation box 300 can be removed from the side wall of the housing 100. Therefore, the components and circuit boards inside the battery pack 1000 of this embodiment can be maintained through the installation groove 110 on the side wall after the seal 500 is removed, avoiding the need to disassemble other battery packs 1000 and the top cover of the battery pack 1000 during maintenance, improving the convenience of maintenance, saving maintenance time, and improving the efficiency of maintenance. It is not easy to cause other installation problems during the maintenance process, and the maintenance reliability is improved. In addition, through the modular design of the acquisition board 400, the protection of the circuit board of the battery assembly 200 is improved, and the wiring and maintenance of the acquisition board 400 are also more convenient. At the same time, the acquisition board 400 is installed in the installation box 300 to form an acquisition module. All acquisition harnesses are connected to it through connectors. The wiring operations of the acquisition harnesses are all outside the chassis, which saves the internal space of the shell 100 and improves the volume energy density of the battery pack 1000.

[0039] It should be noted that, in this embodiment, the acquisition board 400 is used to collect electrical parameters such as voltage, current, temperature, etc. of the battery assembly 200 in real time, and transmit them to the battery management unit of the battery pack 1000. The battery management unit can monitor the current size and direction of the battery assembly 200 during the charging and discharging process through these data, thereby preventing safety issues such as overcharging, over-discharging, and thermal runaway of the battery assembly 200.

[0040] refer to Figure 2 As shown, the inner side wall of the mounting groove 110 has a protruding mounting flange 120, and the mounting box 300 is detachably mounted on the mounting flange 120. It can be understood that installing the mounting box 300 on the mounting flange 120 can improve the connection stability of the mounting box 300 in the mounting groove 110, and avoid the phenomenon of the mounting box 300 shaking during the use of the battery pack 1000.

[0041] Optionally, there are two mounting flanges 120, and both sides of the mounting box 300 that are arranged opposite to each other can be detachably connected to the two mounting flanges 120. Thus, the mounting stability of the mounting box 300 is further improved. Of course, in other embodiments of the present invention, there can also be three or four mounting flanges 120, so as to achieve three-side fixation or four-side fixation of the mounting box 300, thereby further improving the mounting stability of the mounting box 300.

[0042] Specifically, the mounting flange 120 is provided with a first connection hole 121, and the mounting box 300 is provided with a second connection hole 301 corresponding to the first connection hole 121. The battery pack 1000 also includes a connector 700, which passes through the second connection hole 301 and the first connection hole 121 to install the mounting box 300 in the mounting groove 110. It can be understood that in the actual connection process, it is only necessary to attach the mounting box 300 to the mounting flange 120 so that the second connection hole 301 corresponds to the first connection hole 121, and then install the connector 700 to the first connection hole 121 and the second connection hole 301. The use of the connector 700 to achieve the connection between the mounting flange 120 and the mounting box 300 can facilitate the installation and removal of the mounting box 300 on the one hand, and improve the installation stability of the mounting box 300 on the other hand. It should be noted that in the embodiment, the connector 700 can be a pin or a screw, which can be selected according to actual needs. Of course, in some alternative embodiments, the mounting flange 120 and the mounting box 300 may also be connected via a detachable structure such as a snap connection, and are not limited to the above connection method.

[0043] refer to Figure 3 As shown, the installation box 300 includes a box body 310 and a cover body 320. One end of the box body 310 is open, and the cover body 320 is buckled on the open end of the box body 310. A plurality of avoidance holes 312 are provided on the side of the box body 310 away from the cover body 320. The collection board 400 is provided with connection terminals 410 corresponding to the plurality of avoidance holes 312, and the connection terminals 410 are electrically connected to the battery assembly 200. It can be understood that in the actual assembly process, the collection board 400 is installed in the box body 310 so that the connection terminals 410 are aligned with the avoidance holes 312, and then the cover body 320 is buckled onto the box body 310. After the installation box 300 is installed on the installation flange 120, the connection terminals 410 can extend out of the avoidance holes 312 and plug in with the connection wires of the battery assembly 200, which not only facilitates the assembly of the installation box 300, but also facilitates the electrical connection between the battery assembly 200 and the collection board 400.

[0044] Optionally, one of the box body 310 and the cover body 320 is provided with a clamping protrusion 311, and the other of the box body 310 and the cover body 320 is provided with a clamping hole that cooperates with the clamping protrusion 311. It is understandable that, in a specific embodiment, the box body 310 is provided with a clamping protrusion 311, and the cover body 320 is provided with a clamping hole; in another specific embodiment, the box body 310 is provided with a clamping hole, and the cover body 320 is provided with a clamping protrusion 311. The positions of the clamping protrusion 311 and the clamping hole can be selected according to actual needs. In this embodiment, the box body 310 and the cover body 320 are detachably connected by the clamping protrusion 311 and the clamping hole, which simplifies the connection structure of the box body 310 and the cover body 320 on the one hand, facilitates the connection and disassembly of the box body 310 and the cover body 320, and can improve the connection stability of the box body 310 and the cover body 320 on the other hand. Of course, in other embodiments of the present invention, the box body 310 and the cover body 320 may also be connected by other detachable connection methods such as screw connection, fixing pin connection, etc., and are not limited to the snap connection in this embodiment.

[0045] Optionally, there are multiple clamping protrusions 311 and clamping holes, and the multiple clamping protrusions 311 are divided into two groups, and the two groups of clamping protrusions 311 are respectively located on two opposite sides of the box body 310. Thus, the box body 310 and the cover body 320 are clamped together by multiple clamping protrusions 311 and clamping holes, which can improve the connection stability of the box body 310 and the cover body 320.

[0046] refer to Figure 2 As shown, a first fixing hole 130 is provided on the side wall of the housing 100, and a second fixing hole 501 corresponding to the first fixing hole 130 is provided on the sealing member 500; the battery pack 1000 further includes a fixing member 800, which passes through the second fixing hole 501 and the first fixing hole 130 to install the sealing member 500 on the side wall of the housing 100. It can be understood that in the actual connection process, it is only necessary to stick the sealing member 500 to the side wall of the housing 100 so that the second fixing hole 501 corresponds to the first fixing hole 130, and then install the fixing member 800 to the first fixing hole 130 and the second fixing hole 501. The fixing member 800 is used to realize the connection between the side wall of the housing 100 and the sealing member 500, which can facilitate the installation and removal of the sealing member 500 on the one hand, and improve the installation stability of the sealing member 500 on the other hand. It should be noted that in the embodiment, the fixing member 800 can be a pin or a screw, which can be selected according to actual needs. Of course, in some alternative embodiments, the side wall of the housing 100 and the sealing member 500 may also be connected via a detachable structure such as a snap connection, and is not limited to the above connection method.

[0047] refer to Figure 4As shown, the seal 500 includes a sealing plate 510 and a sealing gasket 520. The sealing plate 510 is detachably mounted on the housing 100. The sealing gasket 520 is arranged around the mounting groove 110 and is clamped between the sealing plate 510 and the side wall of the housing 100. It can be understood that the sealing plate 510 can ensure the sealing of the mounting groove 110, ensure that the interior of the housing 100 of the battery pack 1000 is isolated from the external environment after the seal 500 is installed, and prevent water vapor and foreign matter from entering the interior of the housing 100 from the mounting groove 110. The additional sealing gasket 520 can improve the sealing of the connection between the sealing plate 510 and the housing 100, and further ensure that the interior of the housing 100 of the battery pack 1000 is isolated from the external environment. In the embodiment of the utility model, the material and sealing level of the sealing gasket 520 can be selected according to actual needs, and the parameters of the sealing gasket 520 are not specifically limited here.

[0048] refer to Figure 2 As shown, the battery pack 1000 further includes a decorative plate 600, which is detachably mounted on the side wall of the housing 100 and can shield the seal 500. It is understandable that the additional decorative plate 600 can protect the seal 500 on the one hand, preventing the seal 500 from being impacted by the outside and causing the seal to fail, and on the other hand, can improve the aesthetics of the battery pack 1000.

[0049] refer to Figure 2 and Figure 5 As shown, a hanging portion 140 is provided on the side wall of the housing 100; the decorative plate 600 includes a plate body 610 and a plate bracket 620, the two ends of the plate bracket 620 are respectively connected to the two opposite sides of the plate body 610, and the plate bracket 620 is provided with a hanging groove 6211 that cooperates with the hanging portion 140. It can be understood that the hanging groove 6211 on the plate bracket 620 cooperates with the hanging portion 140, which can facilitate the installation and removal of the decorative plate 600, thereby facilitating the maintenance of the battery pack 1000.

[0050] Specifically, the board body 610 includes a first panel 611 and a second panel 612 connected on both sides of the first panel 611, and the board bracket 620 includes a hanging plate 621 and a connecting plate 622 connected on both sides of the hanging plate 621, and the two connecting plates 622 are respectively connected to the two second panels 612 by connecting screws 630, and two hanging grooves 6211 are arranged on the hanging plate 621 along its length direction.

[0051] Optionally, there are two plate brackets 620, and the two plate brackets 620 are arranged at intervals in the vertical direction on the plate body 610. Thus, both the upper and lower sides of the decorative plate 600 can be hung on the side wall of the housing 100, which improves the connection stability of the decorative plate 600.

[0052] The utility model also discloses an energy storage device, such as Figure 6 As shown, it includes multiple battery packs 1000 as described above, and multiple battery packs 1000 are stacked in the vertical direction. Due to the energy storage device described above, the components and circuit boards inside each battery pack 1000 can be maintained through the mounting groove 110 on the side wall after removing the seal 500, avoiding the need to remove other battery packs 1000 and the top cover of the battery pack 1000 during maintenance, improving maintenance convenience, saving maintenance time, and improving maintenance efficiency.

[0053] In the description of the present invention, the reference terms "some embodiments", "other embodiments", etc. mean 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 present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0054] Obviously, the above embodiments of the present invention are merely examples for the purpose of clearly illustrating the present invention, and are not intended to limit the implementation methods of the present invention. For those skilled in the art, various obvious changes, readjustments and substitutions can be made without departing from the scope of protection of the present invention. It is not necessary and impossible to list all implementation methods here. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention shall be included in the scope of protection of the claims of the present invention.

Claims

1. A battery pack, characterized in that: include: A housing, wherein a battery assembly is disposed inside the housing, and a mounting groove is disposed on a side wall of the housing; An installation box, the installation box is detachably installed in the installation slot, a collection board is provided in the installation box, the collection board is electrically connected to the battery assembly, and the collection board is used to collect electrical parameters of the battery assembly; A sealing member is detachably mounted on the housing and is used to seal the mounting groove so as to seal the mounting box inside the housing.

2. The battery pack according to claim 1, characterized in that: The inner side wall of the installation groove has a protruding installation flange, and the installation box is detachably installed on the installation flange.

3. The battery pack according to claim 2, characterized in that: A first connecting hole is provided on the mounting flange, a second connecting hole corresponding to the first connecting hole is provided on the mounting box, and the battery pack also includes a connecting member, which passes through the second connecting hole and the first connecting hole to install the mounting box in the mounting groove.

4. The battery pack according to claim 1, characterized in that: The installation box includes a box body and a cover body, one end of the box body is open, the cover body is buckled on the open end of the box body, a plurality of avoidance holes are provided on the side of the box body away from the cover body, and the collection board is provided with connection terminals corresponding to the plurality of avoidance holes, and the connection terminals are electrically connected to the battery assembly.

5. The battery pack according to claim 4, characterized in that: One of the box body and the cover body is provided with a locking protrusion, and the other of the box body and the cover body is provided with a locking hole matched with the locking protrusion.

6. The battery pack according to claim 1, characterized in that: A first fixing hole is provided on the side wall of the shell, and a second fixing hole is provided on the seal corresponding to the first fixing hole; the battery pack also includes a fixing member, which passes through the second fixing hole and the first fixing hole to install the seal on the side wall of the shell.

7. The battery pack according to claim 1, characterized in that: The sealing member comprises a sealing plate and a sealing gasket. The sealing plate is detachably mounted on the housing. The sealing gasket is arranged around the mounting groove and is sandwiched between the sealing plate and the side wall of the housing.

8. The battery pack according to any one of claims 1 to 7, characterized in that: The battery pack further includes a decorative plate which is detachably mounted on a side wall of the shell and can cover the sealing member.

9. The battery pack according to claim 8, characterized in that: A hanging portion is provided on the side wall of the shell; The decorative plate comprises a plate body and a plate bracket, two ends of the plate bracket are respectively connected to two opposite sides of the plate body, and a hanging groove cooperating with the hanging part is provided on the plate bracket.

10. An energy storage device, characterized in that: It comprises a plurality of battery packs as claimed in any one of claims 1 to 9, wherein the plurality of battery packs are stacked in a vertical direction.

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