One-way limiting mechanism for battery box and battery box

Abstract

The utility model discloses a one-way limiting mechanism for a battery box and the battery box. The one-way limiting mechanism for the battery box comprises a first connecting piece, a second connecting piece, two connecting rod assemblies and an adjusting piece, and a through hole is formed in the second connecting piece. The two connecting rod assemblies are oppositely arranged, and the two ends of each connecting rod assembly are hinged to the first connecting piece and the second connecting piece correspondingly. The adjusting piece penetrates through the through hole and is in threaded connection with the threaded groove, and one end of the adjusting piece is limited to the second connecting piece. The adjusting piece rotates to adjust the distance between the first connecting piece and the second connecting piece, so that the connecting rod assembly deforms. According to the one-way limiting mechanism for the battery box, the two connecting rod assemblies can be freely expanded and contracted by rotating the adjusting part, so that a gap between two battery packs is eliminated, the assembling stability of the battery box is ensured, the influence caused by unstable size due to deformation of a battery pack box body does not need to be considered, the operation is simple, and the practicability is high. And the assembling efficiency of the battery box is effectively improved.

Description

Technical Field

[0001] The utility model relates to the technical field of battery boxes, in particular to a one-way limiting mechanism for a battery box and a battery box. Background Art

[0002] The existing battery box includes a side frame, a lower frame and at least two battery packs. Each battery pack is arranged side by side along the lower frame in sequence. One side of each battery pack facing outward is fixed to the lower frame, and there is a certain gap between two adjacent battery packs. When hoisting or transporting the battery box, each battery pack may have a certain swing, and relative movement may occur between two battery packs, which is likely to generate abnormal sounds and noises, affecting the stability of the assembly structure of the battery box.

[0003] In the prior art, pads and gaskets are stuffed between two adjacent battery packs for filling to eliminate the distance between the two battery packs, and the swing of the two battery packs will be significantly reduced. The pads are mainly used for filling, and the gaskets are used to fill the tiny gaps between the battery packs and the pads, generally within 3 mm. However, due to the large dimensional deformation of the battery pack box body, the gap size between each battery pack and the pad is different. To ensure the elimination of the gap, it is necessary to measure the gap size with a feeler gauge each time to determine the number and thickness of the gaskets, which is a large workload and seriously affects the assembly efficiency of the battery box.

[0004] In view of this, the present utility model is specifically proposed. Content of the Utility Model

[0005] The utility model provides a one-way limiting mechanism for a battery box and a battery box.

[0006] The utility model adopts the following technical solutions:

[0007] The first object of the present application is to provide a one-way limiting mechanism for a battery box, including:

[0008] A first connecting member for connection and fixation, and a threaded groove is provided on the first connecting member;

[0009] A second connecting member, the second connecting member and the first connecting member are arranged at intervals, and a through hole is provided on the second connecting member;

[0010] Two link assemblies, the two link assemblies are arranged oppositely, and both ends of the two link assemblies are respectively hinged to the first connecting member and the second connecting member;

[0011] An adjusting member, the adjusting member penetrates through the through hole, and the adjusting member is threadedly connected to the threaded groove, and one end of the adjusting member is limited to the second connecting member;

[0012] Rotation of the adjusting member can adjust the distance between the first connecting member and the second connecting member, causing deformation of the link assembly.

[0013] Optionally, the adjusting member includes a cap body and a screw. The screw passes through the through hole, and the screw is threadedly connected to the thread groove. The cap body is limited to the second connecting member.

[0014] Optionally, a rotation fitting structure is provided on the cap body.

[0015] Optionally, the one-way limiting mechanism for the battery box includes a spring. The spring is sleeved on the adjusting member, and both ends of the spring respectively abut against the first connecting member and the second connecting member.

[0016] Optionally, the link assembly all has a first link and a second link;

[0017] The first link and the second link are hinged to each other. One end of the second link away from the first link is hinged to the second connecting member, and one end of the first link away from the second link is hinged to the first connecting member.

[0018] Optionally, the second link has an abutting section, a main body section, and a hinge hole located between the abutting section and the main body section;

[0019] The end of the first link is hinged to the hinge hole.

[0020] Optionally, one end of the first link has two extension arms;

[0021] The second link passes through the two extension arms. A pin shaft passes through the hinge hole, and the pin shaft is respectively connected to the two extension arms.

[0022] Optionally, both the first link and the second link include a main sheet body and side sheet bodies located on both sides of the main sheet body in the width direction.

[0023] Optionally, both the first connecting member and the second connecting member include a middle body and side bodies located on both sides of the middle body;

[0024] The width of the side body is smaller than that of the middle body. The thread groove or through hole is provided on the middle body;

[0025] The hinge hole is provided on the side body to be hinged to the link assembly.

[0026] A second object of the present application is to provide a battery box, including:

[0027] A battery box main body, the battery box main body includes a frame and at least two battery packs. Each battery pack is fixed to the frame, and there is a gap between adjacent two battery packs;

[0028] As the one-way limiting mechanism described above, the one-way limiting mechanism is located within the gap, and the first connecting member of the one-way limiting mechanism is fixed to the frame, and at least one link assembly abuts against one of the battery packs.

[0029] By adopting the above technical solution, the present utility model has the following beneficial effects:

[0030] For the one-way limiting mechanism for a battery box in this application, the rotation adjustment member can freely expand and contract the two link assemblies to eliminate the gap between the two battery packs, ensuring the stability of the battery box assembly, and without considering the influence caused by the unstable dimensions due to the deformation of the battery pack box body. The operation is simple, effectively improving the assembly efficiency of the battery box.

[0031] The following further describes in detail the specific embodiments of the present utility model with reference to the accompanying drawings. Description of the Drawings

[0032] The accompanying drawings, as a part of this application, are used to provide a further understanding of the present utility model. The schematic embodiments and descriptions thereof of the present utility model are used to explain the present utility model, but do not constitute an improper limitation of the present utility model. Obviously, the accompanying drawings in the following description are only some embodiments, and those of ordinary skill in the art can obtain other drawings based on these drawings without creative efforts. In the drawings:

[0033] Figure 1 is a schematic structural diagram of the one-way limiting mechanism for a battery box provided by an embodiment of this application;

[0034] Figure 2 is an exploded view of the one-way limiting mechanism for a battery box provided by an embodiment of this application;

[0035] Figure 3 is a partial structural diagram of the battery box provided by an embodiment of this application.

[0036] In the figure: first connecting member 1, threaded groove 11, second connecting member 2, through hole 21, link assembly 3, first link 31, extension arm 311, connecting hole 3111, second link 32, abutting section 321, main body section 322, hinge hole 323, adjustment member 4, cap body 41, screw rod 42, spring 5, pin shaft e, main plate body a, side plate body b, middle body c, side body d, battery box main body 6, frame 61, side frame 611, bottom frame 612, battery pack 62, middle support frame 7.

[0037] It should be noted that these drawings and text descriptions are not intended to limit the concept scope of the present utility model in any way, but to illustrate the concept of the present utility model to those skilled in the art by referring to specific embodiments. Detailed implementation mode

[0038] To make the objectives, technical solutions and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. The following embodiments are used to illustrate the present utility model, but are not used to limit the scope of the present utility model.

[0039] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "upper", "lower", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or component referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present utility model.

[0040] In the description of the present utility model, it should be noted that unless otherwise clearly specified and defined, the terms "installation" and "connection" 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 directly connected or indirectly connected through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0041] Embodiment 1

[0042] See Figure 1 and Figure 2 As shown in and, Embodiment 1 of the present application provides a one-way limiting mechanism for a battery box, including: a first connecting member 1, a second connecting member 2, two link assemblies 3, and an adjusting member 4. The first connecting member 1 is used for connection and fixation, and a threaded groove 11 is provided on the first connecting member 1. The first connecting member 1 can be fixed on the frame 61 of the battery box. The second connecting member 2 and the first connecting member 1 are arranged at intervals, and a through hole 21 is provided on the second connecting member 2. The two link assemblies 3 are arranged oppositely, and both ends of the two link assemblies 3 are respectively hinged to the first connecting member 1 and the second connecting member 2. The adjusting member 4 passes through the through hole 21, and the adjusting member 4 is threadedly connected to the threaded groove 11, and one end of the adjusting member 4 is limited to the second connecting member 2. By rotating the adjusting member 4, the distance between the first connecting member 1 and the second connecting member 2 can be adjusted, so that the link assembly 3 is deformed. For the one-way limiting mechanism for the battery box of the present application, rotating the adjusting member 4 can make the two link assemblies 3 expand and contract freely, so as to eliminate the gap between the two battery packs 62, ensure the stability of the battery box assembly, and without considering the influence caused by the unstable dimensions due to the deformation of the battery pack 62 box body. The operation is simple, and the assembly efficiency of the battery box is effectively improved.

[0043] The adjusting member 4 includes a cap body 41 and a screw rod 42, wherein the screw rod 42 passes through the through hole 21 and is threadedly connected to the thread groove 11, and the cap body 41 is limited to the second connecting member 2. The cap body 41 is rotated, and the cap body 41 can drive the screw rod 42 to rotate, and the screw rod 42 rotates in the thread groove 11, so as to adjust the distance between the first connecting member 1 and the second connecting member 2, so that the connecting rod assembly 3 is deformed, expanded or contracted to adapt to the gaps of different distances between adjacent battery packs 62, and there is no need to consider the influence of dimensional instability caused by the deformation of the battery pack 62 box, and the operation is also very simple.

[0044] A rotational matching structure is provided on the cap body 41. The cross section of the rotational matching structure may be a polygon, for example, a hexagonal structure, so that it is convenient for the operator to perform a rotation operation through a special tool, and the special tool may also be a wrench, which is a common tool used in daily life, convenient and easy to obtain, and there is no need to design a special rotation tool, so that the rotation adjustment operation of the one-way limit mechanism for the battery box of the present application is very convenient.

[0045] In a possible implementation, the one-way limiting mechanism for the battery box includes a spring 5, the spring 5 is sleeved on the adjusting member 4, and two ends of the spring 5 are respectively pressed against the first connecting member 1 and the second connecting member 2.

[0046] The connecting rod assemblies 3 each have a first connecting rod 31 and a second connecting rod 32. The first connecting rod 31 and the second connecting rod 32 are hinged, and the end of the second connecting rod 32 away from the first connecting rod 31 is hinged to the second connecting member 2, and the end of the first connecting rod 31 away from the second connecting rod 32 is hinged to the first connecting member 1. The first connecting rod 31, the second connecting rod 32 and the screw 42 form a triangular structure. Rotating the cap body 41 can lengthen or shorten the distance between the first connecting member 1 and the second connecting member 2, and make the height of the connecting rod deformation higher or lower. The two connecting rod assemblies 3 are arranged opposite to each other. When the cap body 41 is rotated, the two connecting rod assemblies 3 can be freely expanded and contracted.

[0047] In a possible implementation, the second connecting rod 32 has a top section 321, a main body section 322, and a hinge hole 323 between the top section 321 and the main body section 322, and the end of the first connecting rod 31 is hinged to the hinge hole 323. The top section 321 is at a certain distance from the hinge hole 323, so that during the deformation of the connecting rod assembly 3, the top section 321 will not interfere with the outer shell of the battery pack 62.

[0048] One end of the first link 31 has two extension arms 311. The second link 32 is disposed through the two extension arms 311. A pin shaft e passes through the hinge hole 323, and the pin shaft e is respectively connected to the two extension arms 311. Connection holes 3111 are provided on the two extension arms 311. The pin shaft e passes through the hinge hole 323, and both ends are respectively connected to the corresponding connection holes 3111.

[0049] In a possible implementation, both the first link 31 and the second link 32 include a main body a and side bodies b located on both sides of the main body a in the width direction. The first link 31 and the second link 32 can be generally of channel steel structure, with high structural strength, not easily deformed, and a long service life.

[0050] Both the first connecting member 1 and the second connecting member 2 include a middle body c and side bodies d located on both sides of the middle body c. The width of the side body d is smaller than that of the middle body c. A threaded groove 11 or a through hole 21 is provided on the middle body c, and hinge holes are provided on the side bodies d for hinging with the link assembly 3. Both ends of the link assembly 3 have two extension arms, and the extension arms extend to both sides of the side body d, facilitating the use of the pin shaft e to pass through and connect the hinge holes. If the width of the side body d is set the same as that of the middle body c, when hinged with the extension arms, the extension arms will protrude, making the appearance less aesthetic, and the extension arms are also prone to interference with external structures.

[0051] Embodiment Two

[0052] This application embodiment also provides a battery box, including: a battery box main body 6 and the one-way limiting mechanism as described above. The battery box main body 6 includes a frame 61 and at least two battery packs 62. Each battery pack 62 is fixed to the frame 61, and there is a gap between two adjacent battery packs 62. The one-way limiting mechanism is located in the gap, and the first connecting member 1 of the one-way limiting mechanism is fixed to the frame 61, and at least one link assembly 3 abuts against one battery pack 62. The frame 61 includes a side frame 611 and a bottom frame 612. The one-way limiting mechanism can be disposed at the gap between two adjacent battery packs 62. The first connecting member 1 can be fixed to the bottom frame 612 by welding. The two link assemblies 3 respectively abut against the two battery packs 62 on both sides. The rotation adjusting member 4 can freely expand and contract the two link assemblies 3 to eliminate the gap between the two battery packs 62. This ensures the stability of the battery box assembly, and there is no need to consider the influence caused by the dimensional instability due to the deformation of the battery pack 62 box body. The operation is simple, effectively improving the assembly efficiency of the battery box.

[0053] Some battery boxes also have a middle support frame 7, which is arranged in the gap between two adjacent battery packs 62, and the middle support frame 7 is vertically connected to the bottom frame 612. This enhances the structural strength at the gap, making the side frame 611 and the bottom frame 612 not easily deformed and enhancing the structural stability. At this time, a one-way limiting mechanism can be arranged between the middle support frame 7 and the battery pack 62, so that the one-way limiting mechanism is arranged on both the left and right sides of the middle support frame 7 and the battery packs 62 on both sides. Among the two link assemblies 3 of the one-way limiting mechanism, one abuts against the battery pack and the other abuts against the middle support frame 7.

[0054] The above are only the preferred embodiments of the present invention, and do not impose any form of limitation on the present invention. Although the present invention has been disclosed above with the preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art of this patent, without departing from the scope of the technical solution of the present invention, can make some changes or modifications using the technical content prompted above into equivalent embodiments of equivalent changes. However, as long as it does not depart from the content of the technical solution of the present invention, any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the present invention still fall within the scope of the technical solution of the present invention.

Claims

1. A one-way limiting mechanism for a battery box, characterized in that, Comprising: A first connecting member for connecting and fixing, with a threaded groove provided on the first connecting member; A second connecting member spaced from the first connecting member, with a through hole provided on the second connecting member; Two link assemblies oppositely arranged, both ends of the two link assemblies being respectively hinged to the first connecting member and the second connecting member; An adjusting member passing through the through hole, and the adjusting member being threadedly connected to the threaded groove, with one end of the adjusting member being limited to the second connecting member; Rotation of the adjusting member can adjust the distance between the first connecting member and the second connecting member, causing the link assembly to deform.

2. The one-way limiting mechanism for a battery box according to claim 1, characterized in that, The adjusting member includes a cap body and a screw rod, the screw rod passing through the through hole and being threadedly connected to the threaded groove, and the cap body being limited to the second connecting member.

3. The one-way limiting mechanism for a battery box according to claim 2, wherein, A rotation matching structure is provided on the cap body.

4. The one-way limiting mechanism for a battery box according to claim 1, characterized in that, Comprising a spring sleeved on the adjusting member, and both ends of the spring respectively abutting against the first connecting member and the second connecting member.

5. The one-way limiting mechanism for a battery box according to claim 1, characterized in that, Both link assemblies have a first link and a second link; The first link and the second link are hinged to each other, one end of the second link away from the first link is hinged to the second connecting member, and one end of the first link away from the second link is hinged to the first connecting member.

6. The one-way limiting mechanism for a battery box according to claim 5, characterized in that, The second link has an abutting section, a main body section, and a hinge hole located between the abutting section and the main body section; One end of the first link is hinged to the hinge hole.

7. The one-way limiting mechanism for a battery box according to claim 6, wherein, One end of the first link has two extension arms; The second link passes through the two extension arms, a pin shaft passes through the hinge hole, and the pin shaft is respectively connected to the two extension arms.

8. The one-way limiting mechanism for a battery box according to claim 5, characterized in that, Both the first link and the second link include a main sheet body and side sheet bodies located on both sides of the main sheet body in the width direction.

9. The one-way limiting mechanism for a battery box according to claim 1, characterized in that, Both the first connecting member and the second connecting member include a middle body and side bodies located on both sides of the middle body; The width of the side body is smaller than that of the middle body, and the threaded groove or through hole is provided on the middle body; Hinge holes are provided on the side bodies for hinging with the link assemblies.

10. A battery box, characterized in that, Comprising: A battery box main body, the battery box main body including a frame and at least two battery packs, each battery pack being fixed to the frame, and there being a gap between adjacent two battery packs; The one-way limiting mechanism according to any one of claims 1-9, the one-way limiting mechanism being located in the gap, and the first connecting member of the one-way limiting mechanism being fixed to the frame, and at least one link assembly abutting against one of the battery packs.

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