Fixing assembly of battery pack module and energy storage battery pack system

Abstract

The utility model provides a fixing assembly of a battery pack module and an energy storage battery pack system, the battery pack module comprises a first module and a second module which are adjacent along the stacking direction, and the fixing assembly comprises a fixing component and a locking component. The fixing member is arranged on the second module. The locking component is rotatably arranged between an unlocking position and a locking position relative to the first module, the locking component is provided with a locking curved surface, the locking curved surface comprises an inner concave section and a transition section, the inner concave section of the locking component at the locking position abuts against the fixing component, and the transition section is suitable for guiding the inner concave section to abut against the fixing component. The fixing assembly of the battery pack module has the effects that the modules are firmly connected, so that the modules are not easy to loosen.

Description

Technical Field

[0001] The utility model generally relates to the technical field of batteries, and more specifically to a fixing assembly of a battery module and an energy storage battery system. Background Art

[0002] At present, in the stacking of energy storage battery pack systems, multiple modules are involved in the layer-by-layer stacking, and the modules need to be fixed together when stacked.

[0003] In the prior art, the modules are connected together by elastic snap-fitting, but this method is not easy to disassemble, resulting in difficulty in taking out the modules after they are stacked, and the lack of clamping force between the modules results in the modules being easily loosened. Utility Model Content

[0004] A series of simplified concepts are introduced in the utility model content section, which will be further described in detail in the detailed implementation section. The utility model content section of the utility model does not mean to attempt to define the key features and essential technical features of the technical solution claimed for protection, nor does it mean to attempt to determine the scope of protection of the technical solution claimed for protection.

[0005] In order to at least partially solve the above problems, the first aspect of the present invention provides a fixing assembly for a battery module, the fixing assembly comprising:

[0006] a fixing member, the fixing member being configured to be disposed on the second module; and

[0007] A locking member, which is used to be arranged on the first module, and the locking member is rotatably arranged between an unlocked position and a locked position relative to the first module, and the locking member is provided with a locking curved surface, and the locking curved surface includes a concave section and a transition section, and the concave section of the locking member in the locked position abuts against the fixed member, and the transition section is suitable for guiding the concave section to abut against the fixed member.

[0008] According to the fixing assembly of the battery pack module of the first aspect of the utility model, when installing the battery pack module, the first module and the second module are first stacked together, and then the locking member is rotated to the locking position, and under the guidance of the transition section, the concave section of the locking surface of the locking member abuts against the fixing member, so that the locking member is not easy to detach from the fixing member, so that the first module and the second module are firmly connected and not easy to loosen.

[0009] Optionally, the locking member includes a locking groove, the locking curved surface is configured as an inner wall of the locking groove, and the locking groove is used to be snap-connected to the fixing member.

[0010] Optionally, the locking member is further provided with a limiting surface, the limiting surface is configured as an inner wall of the locking groove, the limiting surface is connected to the locking curved surface and is arranged at an angle to the locking curved surface.

[0011] Optionally, the locking curved surface includes a convex section, the convex section is connected to the concave section, the concave section is located between the convex section and the limiting surface, and the convex section is protruded relative to the concave section toward the rotation axis of the locking member.

[0012] Optionally, the fixing member is configured as a cylinder, and the fixing member is provided with an outer peripheral surface for contacting the locking curved surface of the locking member.

[0013] Optionally, the locking member is provided with a force-bearing portion, the locking member is provided with a mounting hole, and the locking member is rotatably arranged with the first module through the mounting hole; the force-bearing portion and the locking groove are arranged on both sides of the mounting hole.

[0014] The second aspect of the utility model provides an energy storage battery system, comprising:

[0015] Module 1;

[0016] A second module, the second module and the first module are arranged along a stacking direction; and

[0017] According to the above-mentioned fixing assembly of the battery pack module, the fixing assembly includes a fixing member and a locking member, the fixing member is used to be set on the second module, the locking member is used to be set on the first module, the locking member is rotatably arranged between an unlocking position and a locking position relative to the first module, and the locking member locks the second module when it is located in the locking position.

[0018] According to the energy storage battery pack system of the second aspect of the utility model, the connection between modules is firm, not easy to loosen, and has good stability.

[0019] Optionally, the first module is a base or a power control box, and the second module is a battery box.

[0020] Optionally, the energy storage battery system includes at least two of the second modules and at least two groups of the fixing components;

[0021] At least two groups of the fixing components are correspondingly arranged between the first module and the second module, and between adjacent second modules;

[0022] In the fixing assembly between adjacent second modules, the locking member and the fixing member are respectively provided at two adjacent second modules.

[0023] Optionally, the second module is provided with a first accommodating groove and a second accommodating groove, and the first accommodating groove and the second accommodating groove are respectively located on both sides of the second module along the stacking direction; the first accommodating groove is used to accommodate the fixing member, and the second accommodating groove is used to accommodate the locking member.

[0024] Optionally, the fixing assembly comprises a first nut, which is disposed in the first receiving groove and is threadedly connected to the fixing member; and / or

[0025] The fixing assembly includes a second nut and a fastener, wherein the fastener is penetrated through the locking member and the inner wall of the second receiving groove and is threadedly connected to the second nut.

[0026] Optionally, the energy storage battery system further includes an elastic gasket, wherein the elastic gasket is arranged between the first module and the second module; and / or

[0027] The energy storage battery pack system further includes an elastic gasket, which is arranged between adjacent second modules. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] The following drawings of the embodiments of the present invention are used as part of the present invention for understanding the present invention. The drawings show the embodiments of the present invention and their descriptions, and are used to explain the principles of the present invention. In the drawings,

[0029] Figure 1 An exploded view of an energy storage battery system according to a preferred embodiment of the utility model along the stacking direction;

[0030] Figure 2 for Figure 1 Bottom view of the energy storage battery system;

[0031] Figure 3 It is a schematic diagram of the installation of the fixed component;

[0032] Figure 4 is a schematic diagram of the installation of the locking member; and

[0033] Figure 5 A three-dimensional view of a locking member.

[0034] Description of Reference Numerals

[0035] 100: Module 1 101: Module 2

[0036] 102: side plate 103: first receiving slot

[0037] 104: second receiving groove 105: first through groove

[0038] 106: second through groove 110: fixing member

[0039] 120: Locking member 121: Locking curved surface

[0040] 122: Locking groove 123: Limiting surface

[0041] 124: Transition section 125: Raised section

[0042] 126: concave section 127: force bearing part

[0043] 128: Mounting hole 130: First nut

[0044] 131: First washer 132: Second nut

[0045] 133: Fastener 134: Second washer

[0046] 140: guide mechanism 141: raised portion

[0047] 142: Recessed portion 150: Elastic gasket

[0048] 111: Outer Surface D1: Stacking Direction

[0049] D2: Axial direction DETAILED DESCRIPTION

[0050] In the following description, a large number of specific details are given to provide a more thorough understanding of the present invention. However, it is obvious to those skilled in the art that the present invention can be implemented without one or more of these details. In other examples, in order to avoid confusion with the present invention, some technical features known in the art are not described.

[0051] In this document, ordinal numbers such as "first" and "second" cited in the present invention are merely identifiers and do not have any other meanings, such as a specific order, etc. Moreover, for example, the term "first component" itself does not imply the existence of the "second component", and the term "second component" itself does not imply the existence of the "first component".

[0052] In this document, “upper”, “lower”, “front”, “back”, “left”, “right”, etc. are only used to indicate the relative position relationship between related parts, rather than to limit the absolute positions of these related parts.

[0053] In this document, “equal”, “same”, etc. are not strictly limited in a mathematical and / or geometric sense, but also include errors that can be understood by those skilled in the art and are allowed in manufacturing or use.

[0054] Unless otherwise stated, the numerical ranges herein include not only the entire range within its two endpoints but also include several sub-ranges contained therein.

[0055] Figures 1 to 5 A fixing assembly of a battery pack module according to the present invention is shown. The battery pack module includes a first module 100 and a second module 101 adjacent to each other along a stacking direction D1. The fixing assembly includes a fixing member 110 and a locking member 120. The fixing member 110 is used to be arranged on the second module 101. The locking member 120 is rotatably arranged between an unlocked position and a locked position relative to the first module 100. The locking member 120 is provided with a locking curved surface 121. The locking curved surface 121 includes a concave section 126 and a transition section 124. The concave section 126 of the locking member 120 in the locked position abuts against the fixing member 110, and the transition section 124 is suitable for guiding the concave section 126 to abut against the fixing member 110.

[0056] According to the fixing assembly of the battery pack module of the utility model, when installing the battery pack module, the first module 100 and the second module 101 are first stacked together, and then the locking member 120 is rotated to the locking position, and under the guidance of the transition section 124, the concave section 126 of the locking surface 121 of the locking member 120 abuts against the fixing member 110, so that the locking member 120 is not easy to separate from the fixing member 110, so that the first module 100 and the second module 101 are firmly connected and not easy to loosen.

[0057] The first module 100 and the second module 101 included in the above-mentioned battery pack module are only used to distinguish the two modules connected by the fixed assembly, and do not mean that the battery pack module only includes the first module 100 and the second module 101, nor does it mean that the first module 100 and the second module 101 of the battery pack module are different types of modules. For example, the battery pack module (the first module 100 and the second module 101) can be a box of a battery pack or a battery module, or a base, which will be given in detail below.

[0058] Further, see Figure 5 The locking member 120 includes a locking groove 122, and the locking curved surface 121 is configured as the inner wall of the locking groove 122. The locking member 120 in the locked position is clamped to the fixing member 110 through the locking groove 122. The locking member 120 is clamped to the fixing member 110 through the locking groove 122, which has a simple structure and a firm connection, and a pressing force can be applied to the fixing member 110 through the locking curved surface 121 in the locking groove 122.

[0059] Optionally, refer to Figure 3 and Figure 4The fixing member 110 is constructed as a cylinder, which can be a screw, and the fixing member 110 is provided with an outer peripheral surface 111. When the locking member 120 is in the process of changing from the unlocking position to the locking position, the locking curved surface 121 of the locking member 120 contacts the outer peripheral surface 111 of the fixing member 110, so as to facilitate guiding the locking member 120 to the locking position and prevent the locking member 120 from being difficult to match with the fixing member 110. In addition, the outer peripheral surface 111 is more matched with the inner concave section 126, so that the locking member 120 is not easy to be separated from the fixing member 110, and the connection is more stable.

[0060] Further, see Figure 5 The locking member 120 is also provided with a limiting surface 123, which is configured as the inner wall of the locking groove 122. The limiting surface 123 is connected to the locking curved surface 121 and is arranged at an angle with the locking curved surface 121, so that the locking member 120 stops rotating relative to the fixing member 110 when the limiting surface 123 contacts the fixing member 110, thereby preventing the locking member 120 from shaking.

[0061] Furthermore, the locking curved surface 121 further includes a convex section 125, the convex section 125 is connected to the concave section 126, the concave section 126 is located between the convex section 125 and the limiting surface 123, and the convex section 125 is arranged to protrude relative to the concave section 126 toward the rotation axis of the locking member 120. The concave section 126 of the locking member 120 in the locked position is engaged with the outer peripheral surface 111 of the fixing member 120, and the convex section 125 and the limiting surface 123 can limit the fixing member 110, so that the fixing member 110 and the locking member 120 are stably connected.

[0062] Optionally, the transition section 124 is located on the side of the raised section 125 away from the recessed section 126, and is used to guide the outer peripheral surface 111 of the fixing member 110 to the raised section 125 and the recessed section 126, so as to prevent the locking member 120 from directly contacting the fixing member 110 and being unable to rotate.

[0063] Optionally, refer to Figure 5 The locking member 120 is provided with a force-bearing portion 127, and the locking member 120 is provided with a mounting hole 128. The locking member 120 is rotatably arranged with the first module 100 through the mounting hole 128. The force-bearing portion 127 and the locking slot 122 are located on both sides of the mounting hole 128 of the locking member 120, so that the fixing member 110 can be rotated through the force-bearing portion 127, and the hands of the staff can be prevented from being pinched.

[0064] The utility model also provides an energy storage battery pack system, comprising a first module 100, a second module 101 and a fixing assembly according to the above-mentioned battery pack module. The second module 101 is arranged along the stacking direction D1 with the first module 100. The fixing assembly comprises a fixing member 110 and a locking member 120, the fixing member 110 is used to be arranged on the second module 101, the locking member 120 is used to be arranged on the first module 100, the locking member 120 is rotatably arranged between an unlocking position and a locking position relative to the first module 100, and the locking member 120 locks the second module 101 when it is in the locking position. According to the energy storage battery pack system of the utility model, the connection between the modules is firm, not easy to loosen, and has good stability.

[0065] Optionally, refer to Figure 1 and Figure 2 , the first module 100 is a base or a power control box, the second module 101 is a battery box, and the energy storage battery pack system according to this embodiment includes a first module 100 and three second modules 101. The energy storage battery pack system includes three sets of fixing components, which are respectively arranged between the first module 100 and the second module 101, and between adjacent second modules 101 among the three second modules 101, so as to connect the first module 100 and the three second modules 101 in sequence along the stacking direction D1. In the fixing components between adjacent second modules 101, the locking member 120 and the fixing member 110 are respectively arranged on two adjacent second modules 101 to realize the connection between the second modules 101.

[0066] Reference Figure 1 and Figure 2 The second module 101 is provided with a first receiving groove 103 and a second receiving groove 104, which are respectively located on both sides of the second module 101 along the stacking direction D1. The first receiving groove 103 is used to receive the fixing member 110, and the second receiving groove 104 is used to receive the locking member 120, so that between adjacent second modules 101, the fixing assembly is hidden in the second module 101, which is more beautiful and does not affect the overall installation of the energy storage battery system.

[0067] Specifically, the first receiving groove 103 is formed in the second module 101 by bending and welding processes, and the bottom surface of the second module 101 is provided with a first through groove 105, so that the locking member 120 can enter the first receiving groove 103 through the second through groove 106 and connect with the fixing member 110. The side plate 102 of the second module 101 is formed with a second receiving groove 104 by a bending process, and the second receiving groove 104 is recessed into the second module 101 along the axial direction D2, and the top surface of the second module 101 is provided with a second through groove 106, so that the locking member 120 can rotate and protrude from the second module 101 through the second through groove 106.

[0068] The top surface of the first module 100 is also provided with a second through slot 106 . The locking member 120 is provided in the base and is rotated to protrude out of the top surface of the base through the second through slot 106 , thereby being connected with the fixing member 110 of the second module 101 .

[0069] Specifically, the installation of the fixing member 110 and the locking member 120. Figure 3 As shown, the fixing assembly also includes a first nut 130 and a first washer 131. The first nut 130 is fixed to the inner wall of the first receiving groove 103 by welding, assembly or stamping, and the first washer 131 is sleeved on the fixing member 110 (selected as a screw), and the fixing member 110 is inserted into the first receiving groove 103 and threadedly connected with the first nut 130, so that the fixing member 110 is fixedly connected to the first receiving groove 103, which is convenient for disassembly and assembly. Figure 4 As shown, the fixing assembly further includes a second nut 132, a fastener 133 and a second washer 134. The second nut 132 is fixed to the inner wall of the first receiving groove 103 by welding, assembly or stamping, and the second washer 134 is sleeved on the fastener 133 (optionally a screw), and the fastener 133 is passed through the mounting hole 128 to the locking member 120, and the fastener 133 is threadedly connected to the second nut 132. When the fastener 133 is tightened, the locking member 120 is installed in the second receiving groove 104 and can rotate relative to the fastener 133, which is convenient for disassembly and assembly.

[0070] Optionally, the fixing assembly further includes at least two guide mechanisms 140, which are respectively disposed between the first module 100 and the second module 101, and between adjacent second modules 101, so as to guide the first module 100 and the second module 101 to be stacked together. In addition, the guide mechanism 140 can also limit the first module 100 and the second module 101, and between the second modules 101 in a direction perpendicular to the stacking direction D1, so that the connection of the energy storage battery system is more stable.

[0071] Specifically, refer to Figure 1 and Figure 2 The guide mechanism 140 includes a protrusion 141 and a recess 142. The protrusion 141 is provided on the first module 100 and the second module 101, and the recess 142 is provided on the second module 101. The protrusion 141 and the recess 142 are plugged together along the stacking direction D1, so that the first module 100 and the second module 101, and the second modules 101 are stacked together.

[0072] In addition, the raised portion 141 may be selected as a joint, and the recessed portion 142 may be selected as an interface, so that the modules (between the first module 100 and the second module 101, and between the second modules 101) can also be electrically connected through the guide mechanism 140, without the need for additional electrical connection structures, thereby saving costs.

[0073] Optionally, a plurality of guide mechanisms 140 may be provided between the modules (between the first module 100 and the second module 101 , and between the second modules 101 ) so that there are a plurality of limit positions between the modules along a direction perpendicular to the stacking direction D1 , and the structure is more stable.

[0074] Optionally, the energy storage battery pack system also includes an elastic gasket 150, which is arranged between adjacent second modules 101. When the locking member 120 between the second modules 101 is in the locking position, there is a force between the second modules 101, so that the elastic gasket 150 is compressed, thereby maintaining a clamping force between the locking member 120 and the fixing member 110, which is beneficial to prevent the second modules 101 from loosening and separating.

[0075] Optionally, the elastic gasket 150 may also be disposed between the first module 100 and the second module 101 to prevent the first module 100 and the second module 101 from loosening and separating.

[0076] Unless otherwise defined, the technical and scientific terms used herein have the same meaning as those generally understood by those skilled in the art in the technical field of the present invention. The terms used herein are only for describing specific implementation purposes and are not intended to limit the present invention. Terms such as "setting" appearing in this article may indicate that one component is directly attached to another component, or that one component is attached to another component through an intermediate. Features described in this article in one embodiment may be applied to another embodiment alone or in combination with other features, unless the feature is not applicable in the other embodiment or otherwise specified.

[0077] The utility model has been described through the above embodiments, but it should be understood that the above embodiments are only for the purpose of example and description, and are not intended to limit the utility model to the described embodiments. It can be understood by those skilled in the art that more variations and modifications can be made according to the teachings of the utility model, and these variations and modifications all fall within the scope of the protection claimed by the utility model.

Claims

1. A fixing assembly for a battery module, characterized in that: The fixing assembly comprises: a fixing member (110), the fixing member (110) being used to be arranged on the second module (101); and A locking member (120), the locking member (120) is used to be arranged on a first module (100), and the locking member (120) is rotatably arranged between an unlocking position and a locking position relative to the first module (100), the locking member (120) is provided with a locking curved surface (121), the locking curved surface (121) includes a concave section (126) and a transition section (124), the concave section (126) of the locking member (120) in the locking position abuts against the fixing member (110), and the transition section (124) is suitable for guiding the concave section (126) to abut against the fixing member (110).

2. The fixing assembly of the battery module according to claim 1, characterized in that: The locking member (120) comprises a locking groove (122), the locking curved surface (121) is configured as an inner wall of the locking groove (122), and the locking groove (122) is used for being snap-connected to the fixing member (110).

3. The fixing assembly of the battery module according to claim 2, characterized in that: The locking member (120) is further provided with a limiting surface (123), the limiting surface (123) being constructed as an inner wall of the locking groove (122), the limiting surface (123) being connected to the locking curved surface (121) and being arranged at an angle to the locking curved surface (121).

4. The fixing assembly of the battery module according to claim 3, characterized in that: The locking curved surface (121) comprises a raised section (125), the raised section (125) is connected to the recessed section (126), the recessed section (126) is located between the raised section (125) and the limiting surface (123), and the raised section (125) is arranged to protrude relative to the recessed section (126) toward the rotation axis of the locking member (120).

5. The fixing assembly of the battery module according to claim 1, characterized in that: The fixing member (110) is configured as a cylinder, and the fixing member (110) is provided with an outer peripheral surface (111) for contacting the locking curved surface (121) of the locking member (120).

6. The fixing assembly of the battery module according to claim 2, characterized in that: The locking member (120) is provided with a force-bearing portion (127), and the locking member (120) is provided with a mounting hole (128). The locking member (120) is rotatably arranged with the first module (100) through the mounting hole (128); the force-bearing portion (127) and the locking groove (122) are arranged on both sides of the mounting hole (128).

7. An energy storage battery system, characterized in that: include: A first module (100); A second module (101), the second module (101) and the first module (100) are arranged along a stacking direction (D1); and According to any one of claims 1 to 6, the fixing assembly of the battery pack module comprises a fixing member (110) and a locking member (120), the fixing member (110) is used to be arranged on the second module (101), the locking member (120) is used to be arranged on the first module (100), the locking member (120) is rotatably arranged between an unlocking position and a locking position relative to the first module (100), and the locking member (120) locks the second module (101) when it is located in the locking position.

8. The energy storage battery system according to claim 7, characterized in that: The first module (100) is a base or a power control box, and the second module (101) is a battery box.

9. The energy storage battery system according to claim 8, characterized in that: The energy storage battery system comprises at least two of the second modules (101) and at least two groups of the fixing components; At least two groups of the fixing components are correspondingly arranged between the first module (100) and the second module (101), and between adjacent second modules (101); In the fixing assembly between adjacent second modules (101), the locking member (120) and the fixing member (110) are respectively arranged at two adjacent second modules (101).

10. The energy storage battery system according to claim 7, characterized in that: The second module (101) is provided with a first accommodating groove (103) and a second accommodating groove (104), and the first accommodating groove (103) and the second accommodating groove (104) are respectively located on two sides of the second module (101) along the stacking direction (D1); the first accommodating groove (103) is used to accommodate the fixing member (110), and the second accommodating groove (104) is used to accommodate the locking member (120).

11. The energy storage battery system according to claim 10, characterized in that: The fixing assembly comprises a first nut (130), the first nut (130) being disposed in the first receiving groove (103) and being threadedly connected to the fixing member (110); and / or The fixing assembly comprises a second nut (132) and a fastener (133), wherein the fastener (133) is penetrated through the locking member (120) and the inner wall of the second receiving groove (104) and is threadedly connected to the second nut (132).

12. The energy storage battery system according to claim 9, characterized in that: The energy storage battery system further comprises an elastic gasket (150), wherein the elastic gasket (150) is arranged between the first module (100) and the second module (101); and / or The energy storage battery pack system further comprises an elastic gasket (150), wherein the elastic gasket (150) is arranged between adjacent second modules (101).

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