CN217765434U - Fixing device for battery pack - Google Patents

Abstract

The application relates to a fixing device for a battery pack, which comprises a plurality of movable frame components and a fixed seat component movably connected with the movable frame components. The fixing seat assembly is used for bearing the movable frame assemblies and the battery packs, each movable frame assembly is provided with an installation position, each installation position is correspondingly provided with an installation connecting piece, and the battery packs are connected to the movable frame assemblies through the installation connecting pieces arranged on the installation positions. The plurality of movable frame assemblies can be movably matched with the fixed seat assembly along two directions of a first axial direction A respectively, each mounting connecting piece can be movably matched with the mounting position along two directions of a second axial direction B, and the first axial direction A and the second axial direction B are not coincident and are not parallel. The application provides a fixing device for battery package has solved the problem that the frock of current vibration test is difficult to satisfy the vibration test of the battery package of equidimension and structure simultaneously.

Description

Fixtures for battery packs

technical field

The present application relates to the technical field of hoisting machinery, in particular to a fixing device for a battery pack.

Background technique

With the development of the new energy industry and the popularity of new energy vehicles, the safety of new energy vehicles has received more and more attention. The power belt of new energy vehicles comes from power batteries, that is, battery packs. In order to improve the safety of new energy vehicles, battery packs will have a very strict testing process before being applied to new energy vehicles. Among them, the vibration test is to simulate: in the driving state, the battery pack on the new energy vehicle is subjected to various bumps and shakes. At present, the mainstream vibration test scheme is: fix the battery pack on the vibration table through tooling, and then turn on the random vibration mode, fixed frequency vibration mode or variable frequency vibration mode on the vibration table to drive the tooling and battery pack to vibrate synchronously, and during the whole test During the process, observe whether the battery pack is abnormal.

However, the size and structure of the battery packs of different new energy vehicles are different, and the spacing of the fixed assembly structure on each battery pack is different. Therefore, each battery pack needs to design a set of tooling separately. Meet the needs of fixing the battery pack during vibration testing. In this way, the difficulty of the vibration test of the battery pack is increased, and the cost of the vibration test of the battery pack is increased. Moreover, when replacing a different battery pack for vibration testing, it is necessary to remove all the original tooling and then install a new tooling, which greatly improves the performance of the battery pack. Reduced efficiency of vibration testing.

Utility model content

Based on this, it is necessary to provide a fixing device for battery packs, which solves the problem that the existing vibration test tooling is difficult to meet the vibration tests of battery packs of different sizes and structures at the same time.

The fixing device for a battery pack provided by the present application includes a plurality of movable frame assemblies and a fixing seat assembly movably connected with the movable frame assemblies. The fixed seat assembly is used to carry the movable frame assembly and the battery pack. Each movable frame assembly is provided with a mounting position, and each mounting position is correspondingly provided with a mounting connector. The battery pack is connected to multiple A movable rack assembly. A plurality of movable frame components can be movably matched with the fixed seat component along the two directions of the first axis A, and each installation connector can be movably matched with the installation position along the two directions of the second axis B. The first axis A and the second axis B are not coincident and not parallel.

In one of the embodiments, the first axis A and the second axis B are vertically arranged. It can be understood that such an arrangement is beneficial to improve the moving efficiency of the installation connecting member.

In one of the embodiments, the movable frame assembly is provided with a plurality of first sliding grooves extending along the first axis A and arranged in parallel, and the fixed seat assembly is provided with a plurality of first protrusions matching the first sliding grooves. Ribs, the first ribs can slide along the first axis A in the first slide groove. It can be understood that such an arrangement is beneficial to reduce the difficulty of cooperation between the movable frame assembly and the fixed seat assembly.

In one of the embodiments, the movable frame assembly is provided with a plurality of first fixing holes distributed along the first axis A, and the fixed seat assembly is provided with a plurality of second fixing holes distributed along the first axis A. The device also includes a first fastener, and the first fastener passes through the first fixing hole and the second fixing hole in order to fixedly connect the movable frame component and the fixed base component. It can be understood that such arrangement is beneficial to realize the fixing of the movable frame assembly and the fixed seat assembly at different positions in the first axial direction A.

In one embodiment, the first fixing hole is in the shape of a strip extending along the first axis A, and/or the second fixing hole is in the shape of a strip extending along the first axis A. It can be understood that such an arrangement is beneficial to improve the matching precision between the first fixing hole and the second fixing hole.

In one of the embodiments, the mounting position is in the shape of a long hole extending along the second axis B, and the fixing device further includes a second fastener, which sequentially passes through the mounting position and the assembly on the battery pack. structure to fixedly connect the movable frame assembly and the battery pack. It can be understood that such an arrangement facilitates fixing the battery pack at different positions of the movable frame assembly along the first axis A.

In one embodiment, there are multiple installation positions, and the multiple installation positions are distributed along the second axis B at intervals. It can be understood that such arrangement is beneficial to improve the structural strength of the movable frame assembly.

In one of the embodiments, the fixing device includes two opposite movable frame assemblies, and the two movable frame assemblies are distributed at both ends of the fixing base assembly along the first axis A, and the fixing device also includes two opposite The fixed seat assembly is provided, and the two fixed seat assemblies are distributed at both ends of the movable frame assembly along the second axial direction B, and the two fixed seat assemblies are arranged at intervals, so that the battery pack can be arranged between the two fixed seat assemblies between.

In one of the embodiments, the fixed seat assembly includes a base plate, a fixed plate and a plurality of bottom support rods connecting the base plate and the fixed plate, the fixed seat assembly is fixed on a horizontal plane through the base plate, and the base plate supports the fixed plate through a plurality of bottom support rods; the movable frame The assembly includes a first movable plate, a second movable plate and a first connecting rod connecting the first movable plate and the second movable plate, the first movable plate and the second movable plate are respectively movably connected to the fixed plates arranged at both ends of the movable frame assembly, And the installation position is set on the first connecting rod.

In one of the embodiments, the movable frame assembly further includes a second connecting rod and a plurality of upper supporting rods connecting the first connecting rod and the second connecting rod, the second connecting rod is arranged in parallel with the first connecting rod, and the upper supporting rod are perpendicular to the first connecting rod and the second connecting rod respectively. It can be understood that such arrangement is beneficial to improve the structural strength of the movable frame assembly.

In one embodiment, the second connecting rod is provided with an operation hole corresponding to the installation position, and the external tool can be inserted into the installation position through the operation hole. It can be understood that such an arrangement facilitates the removal and assembly of the installation connector provided on the first connecting rod by an external tool.

Compared with the prior art, the fixing device for the battery pack provided by this application generally has a multi-position fixed assembly structure on one side of the battery pack, and the mounting connectors in this application are arranged correspondingly to the assembly structure on the battery pack , and the assembly structure is installed at the installation position through the installation connector. It can be understood that the spacing between different assembly structures of different battery packs is different, therefore, it is difficult for the existing tooling to adapt to the installation and fixation of different battery packs. However, in the fixing device provided by the present application, when the relative position of the assembly structure on the battery pack changes due to the replacement of the battery pack, by adjusting the distance between multiple movable frame assemblies along the first axis A, different movable frame assemblies The spacing of the upper installation position on the first axis A is equal to the spacing of the assembly structure on the battery pack on the first axis A. Further, by adjusting the distance between the multiple installation connectors along the second axis B The spacing, so that the spacing of the mounting connectors on the second axis B at different installation positions is equal to the spacing of the assembly structure on the battery pack on the second axis B. And because the first axis A and the second axis B are different, therefore, the first axis A and the second axis B can form a two-dimensional plane. Furthermore, it can be seen that the multiple installation connectors can be moved to positions corresponding to the multiple assembly structures on the battery pack on the two-dimensional plane, thereby adapting to the installation and fixation of battery packs of different sizes or structures.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application or the conventional technology, the following will briefly introduce the drawings that need to be used in the description of the embodiments or the traditional technology. Obviously, the accompanying drawings in the following description are only the present invention For some embodiments of the application, those skilled in the art can also obtain other drawings based on these drawings without creative work.

FIG. 1 is a schematic structural diagram of a fixing device according to an embodiment of the present application;

FIG. 2 is a schematic structural diagram of a movable frame assembly according to an embodiment of the present application;

FIG. 3 is a schematic structural diagram of a fixing seat assembly according to an embodiment of the present application.

Reference signs: 100, movable frame assembly; 110, first movable plate; 111, first chute; 112, first fixing hole; 120, second movable plate; 130, first connecting rod; 131, installation position; 140, the second connecting rod; 141, the operation hole; 150, the upper support rod; 160, the first reinforcing rod; 170, the second reinforcing rod; 200, the fixing seat assembly; 210, the bottom plate; 220, the bottom supporting rod; Fixing plate; 231, the first rib; 232, the second fixing hole.

Detailed ways

In the description of the present application, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", " Back", "Left", "Right", "Vertical", "Horizontal", "Top", "Bottom", "Inner", "Outer", "Clockwise", "Counterclockwise", "Axial" , "radial", "circumferential" and other indicated orientations or positional relationships are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the application and simplifying the description, rather than indicating or implying the referred device or Elements must have certain orientations, be constructed and operate in certain orientations, and thus should not be construed as limiting the application.

In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be interpreted as indicating or implying relative importance or implicitly specifying the quantity of indicated technical features. Thus, the features defined as "first" and "second" may explicitly or implicitly include at least one of these features. In the description of the present application, "plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.

In this application, terms such as "installation", "connection", "connection" and "fixation" should be interpreted in a broad sense, for example, it can be a fixed connection or a detachable connection, unless otherwise clearly specified and limited. , or integrated; it may be mechanically connected or electrically connected; it may be directly connected or indirectly connected through an intermediary, and it may be the internal communication of two components or the interaction relationship between two components, unless otherwise specified limit. Those of ordinary skill in the art can understand the specific meanings of the above terms in this application according to specific situations.

In the present application, unless otherwise clearly specified and limited, a first feature being "on" or "under" a second feature may mean that the first and second features are in direct contact, or that the first and second features are indirect through an intermediary. touch. Moreover, "above", "above" and "above" the first feature on the second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. "Below", "beneath" and "beneath" the first feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is less horizontally than the second feature.

It should be noted that when an element is referred to as being “fixed on” or “disposed on” another element, it may be directly on the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or intervening elements may also be present. As used herein, the terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions are for the purpose of illustration only and are not intended to represent the only embodiment.

Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the technical field to which this application belongs. The terminology used herein in the description of the application is only for the purpose of describing specific embodiments, and is not intended to limit the application. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

With the development of the new energy industry and the popularity of new energy vehicles, the safety of new energy vehicles has received more and more attention. The power belt of new energy vehicles comes from power batteries, that is, battery packs. In order to improve the safety of new energy vehicles, battery packs will have a very strict testing process before being applied to new energy vehicles. Among them, the vibration test is to simulate: in the driving state, the battery pack on the new energy vehicle is subjected to various bumps and shakes. At present, the mainstream vibration test scheme is: fix the battery pack on the vibration table through tooling, and then turn on the random vibration mode, fixed frequency vibration mode or variable frequency vibration mode on the vibration table to drive the tooling and battery pack to vibrate synchronously, and during the whole test During the process, observe whether the battery pack is abnormal.

However, the size and structure of the battery packs of different new energy vehicles are different, and the spacing of the fixed assembly structure on each battery pack is different. Therefore, each battery pack needs to design a set of tooling separately. Meet the needs of fixing the battery pack during vibration testing. In this way, the difficulty of the vibration test of the battery pack is increased, and the cost of the vibration test of the battery pack is increased. Moreover, when replacing a different battery pack for vibration testing, it is necessary to remove all the original tooling and then install a new tooling, which greatly improves the performance of the battery pack. Reduced efficiency of vibration testing.

As shown in Figures 1-3, in order to solve the problem that the existing vibration test tooling is difficult to meet the vibration test of battery packs of different sizes and structures at the same time. The present application provides a fixing device for a battery pack, the fixing device includes a plurality of movable frame assemblies 100 and a fixing base assembly 200 movably connected with the movable frame assemblies 100 . The fixed seat assembly 200 is used to carry the movable frame assembly 100 and the battery pack. Each movable frame assembly 100 is respectively provided with a mounting position 131, and each mounting position 131 is correspondingly provided with a mounting connector (not shown). The installation connectors at the installation positions 131 are connected to a plurality of movable frame assemblies 100 . A plurality of movable frame assemblies 100 can respectively cooperate with the fixed seat assembly 200 along the two directions of the first axis A, and each installation connector can move with the installation position 131 along the two directions of the second axis B. In cooperation, the first axis A and the second axis B do not coincide and are not parallel.

It should be noted that a plurality of movable frame assemblies 100 can be set separately, and can also be connected together and telescopically arranged through telescopic elements, that is, the movable frame assemblies 100 other than the separated ones can be defined as multiple movable frame assemblies 100 , the telescopically connected movable frame assembly 100 can also be defined as a plurality of movable frame assemblies 100 .

Further, it should be noted that both the first axis A and the second axis B in the present application have two directions. Specifically, the two directions of the first axis A mean that: the plurality of movable frame assemblies 100 can move relative to the fixed seat assembly 200 along a certain direction, and the plurality of movable frame assemblies 100 can also move relative to the fixed seat assembly 200 moves in a direction opposite to that described above. Similarly, the two directions of the second axis B mean that: the multiple installation connectors can move along a certain direction relative to the installation position 131, and the multiple installation connectors can also move along the above-mentioned orientation relative to the installation position 131 Move in the opposite direction.

Usually, one side of the battery pack has a multi-position fixed assembly structure, and the installation connectors in this application are provided corresponding to the assembly structures on the battery pack, and the assembly structure is installed at the installation position 131 through the installation connectors. It can be understood that the spacing between different assembly structures of different battery packs is different, therefore, it is difficult for the existing tooling to adapt to the installation and fixation of different battery packs. However, in the fixing device provided by the present application, when the relative position of the assembly structure on the battery pack changes due to the replacement of the battery pack, by adjusting the distance between the plurality of movable frame assemblies 100 along the first axis A, different movable frames The spacing of the mounting positions 131 on the assembly 100 in the first axis A is equal to the spacing of the assembly structure on the battery pack in the first axis A, and further, by adjusting a plurality of mounting connectors along the second axis B The distance between the mounting connectors on the different installation positions 131 in the second axial direction B is equal to the distance between the assembly structures on the battery pack in the second axial direction B. And because the first axis A and the second axis B are not coincident and not parallel, therefore, the first axis A and the second axis B can form a two-dimensional plane. Furthermore, it can be seen that the multiple installation connectors can be moved to positions corresponding to the multiple assembly structures on the battery pack on the two-dimensional plane, thereby adapting to the installation and fixation of battery packs of different sizes or structures.

It can be seen from the above that the fixing device provided by the application effectively reduces the difficulty of the vibration test of the battery pack, and reduces the cost of the vibration test of the battery pack. More importantly, when replacing a different battery pack for the vibration test, there is no need to All the original tooling is removed, which greatly improves the efficiency of vibration testing.

In order to improve the moving efficiency of the installation connector, in one embodiment, as shown in FIG. 1 , the first axis A and the second axis B are vertically arranged. Such an arrangement facilitates the quick movement of the installation connector to a specific position on the two-dimensional plane, thereby improving the testing efficiency. But not limited thereto, the angle between the first axis A and the second axis B may also be any value between 0° and 90°, but not including 0° and 90°.

In order to reduce the difficulty of cooperation between the movable frame assembly 100 and the fixed seat assembly 200, in one embodiment, as shown in Figures 1-3, the movable frame assembly 100 is provided with a plurality of The first chute 111 , the fixing seat assembly 200 is provided with a plurality of first ribs 231 compatible with the first chute 111 , and the first ribs 231 can move along the first axis A in the first chute 111 slide. Through the active cooperation between the first rib 231 and the first chute 111, the active cooperation of multiple movable frame assemblies 100 and the fixed seat assembly 200 along the first axis A is realized, which greatly reduces the cost of the movable frame assembly 100 and the fixed seat assembly. Difficulty of fitting the assembly 200 . Specifically, the number of first sliding grooves 111 is three, and the number of first ribs 231 is also three, but not limited thereto, the number of first sliding grooves 111 and the number of first ribs 231 can also be 2, 4, 5 or more quantities are not listed here.

Similarly, in other embodiments, the fixed seat assembly 200 may also be provided with a plurality of second sliding grooves (not shown) extending along the first axis A and arranged in parallel, and the movable frame assembly 100 is provided with A plurality of second ribs (not shown) are matched with the second slide groove, and the second ribs can slide along the first axis A in the second slide groove. Specifically, the number of the second chute and the number of the second ribs may be 2, 3, 4, 5 or more, and they are not listed here.

In order to realize the fixing of the movable frame assembly 100 and the fixed seat assembly 200 at different positions in the first axial direction A, in one embodiment, as shown in FIGS. 1-3 , the movable frame assembly 100 is provided with multiple The first fixing holes 112 distributed in the axial direction A, the fixing seat assembly 200 is provided with a plurality of second fixing holes 232 distributed along the first axial direction A, the fixing device also includes a first fastener (not shown), the second A fastener passes through the first fixing hole 112 and the second fixing hole 232 in order to fixedly connect the movable frame assembly 100 and the fixing seat assembly 200 . Preferably, the first fixing holes 112 are evenly spaced along the first axis A, and the second fixing holes 232 are evenly spaced along the first axis A. As shown in FIG.

It should be noted that there is not a one-to-one correspondence between the first fixing hole 112 and the second fixing hole 232, any first fixing hole 112 and any second fixing hole 232 can pass through the same first fastener, In this way, when the movable frame assembly 100 moves relative to the fixed seat assembly 200 to any preset position in the first axial direction A, the first fastener can be passed through the corresponding first fixing hole 112 and the second fixing hole 112 . Through the hole 232 , the movable frame assembly 100 can be fixed at any preset position of the fixed seat assembly 200 .

Further, it should be noted that the first fastener passing through the first fixing hole 112 and the second fixing hole 232 includes the following two situations. In the first situation, the first fastener first passes through the first fixing hole 112 and then pass through the second fixing hole 232 , in the second case, the first fastener first passes through the second fixing hole 232 and then passes through the first fixing hole 112 .

Further, it should be noted that the first fastening member may be a screw, a bolt or other fastening connection parts, which are not listed here.

In order to improve the matching accuracy between the first fixing hole 112 and the second fixing hole 232, in one embodiment, as shown in Figures 1-3, the first fixing hole 112 is in the shape of a strip extending along the first axis A . In this way, the second fixing hole 232 can be fixed at any position along the first axis A of the first fixing hole 112 through the first fastener. Likewise, in one embodiment, the second fixing hole 232 is in the shape of a strip extending along the first axis A. As shown in FIG. In this way, the first fixing hole 112 can be fixedly disposed at any position along the first axis A of the second fixing hole 232 through the first fastener.

In order to improve the connection strength between the movable frame assembly 100 and the fixed seat assembly 200, in one embodiment, as shown in FIGS. holes 112, and in order to prevent the structural strength of the movable frame assembly 100 from being reduced due to the coincidence of the positions of the first chute 111 and the first fixing hole 112, each row of first fixing holes 112 is arranged alternately with the first chute 111, that is A row of first fixing holes 112 is arranged between adjacent first sliding slots 111 , that is, a row of first sliding grooves 111 is arranged between adjacent first fixing holes 112 . Preferably, the intervals between each row of first fixing holes 112 are the same, and the intervals between each first sliding groove 111 are the same.

Correspondingly, in order to improve the connection strength between the movable frame assembly 100 and the fixed seat assembly 200, in one embodiment, as shown in FIGS. Extended second fixing holes 232, and, in order to avoid the coincidence of the positions of the first ribs 231 and the second fixing holes 232, resulting in a decrease in the structural strength of the movable frame assembly 100, each row of second fixing holes 232 is aligned with the first ribs 231 The arrangement is staggered, that is, a row of second fixing holes 232 is provided between adjacent first ribs 231 , that is, a row of first ribs 231 is arranged between adjacent second fixing holes 232 . Preferably, the intervals between each row of second fixing holes 232 are the same, and the intervals between each first rib 231 are the same.

In order to facilitate the fixing of the battery pack at different positions of the movable frame assembly 100 along the first axis A, in one embodiment, as shown in FIGS. 1-3 , the mounting position 131 extends along the second axis B The fixing device is in the shape of an elongated hole, and the fixing device further includes a second fastener, and the second fastener passes through the installation position 131 and the assembly structure on the battery pack in sequence, so as to fixedly connect the movable frame assembly 100 and the battery pack.

It should be noted that the second fastener passing through the installation position 131 and the assembly structure on the battery pack includes the following two situations. In the first case, the second fastener first passes through the installation position 131 and then passes through the battery pack. In the second case, the second fastener first passes through the assembly structure on the battery pack and then passes through the installation position 131 .

Further, it should be noted that the second fastening member may be a screw, a bolt or other fastening connection parts, which are not listed here.

Further, in order to improve the structural strength of the movable frame assembly 100, in one embodiment, as shown in FIGS. interval distribution. Furthermore, the multiple installation positions 131 provided on the same movable frame assembly 100 are evenly spaced.

Specifically, the fixing device includes two opposite movable frame assemblies 100, and the two movable frame assemblies 100 are distributed at both ends of the fixing base assembly 200 along the first axis A, and the fixing device includes two oppositely arranged The fixed seat assembly 200, and the two fixed seat assemblies 200 are distributed at both ends of the movable frame assembly 100 along the second axial direction B, and the two fixed seat assemblies 200 are arranged at intervals so that the battery pack can be arranged on the two fixed seats between 200 components. More specifically, two fixed seat assemblies 200 are arranged at intervals along the second axis B and fixed on the ground, and two movable frame assemblies 100 are arranged at intervals along the first axis A and are movably connected above the fixed seat assembly 200 , and the middle of the movable frame assembly 100 is in a suspended state, and the battery pack is hoisted on the middle part of the movable frame assembly 100 close to the fixed seat assembly 200 .

More specifically, the fixing seat assembly 200 includes a bottom plate 210, a fixing plate 230, and a plurality of bottom support rods 220 connecting the bottom plate 210 and the fixing plate 230, the fixing seat assembly 200 is fixed on a horizontal plane through the bottom plate 210, and the bottom plate 210 is fixed on a horizontal surface through a plurality of bottom support rods. 220 supports a fixed plate 230 . The movable frame assembly 100 includes a first movable plate 110, a second movable plate 120 and a first connecting rod 130 connecting the first movable plate 110 and the second movable plate 120, and the first movable plate 110 and the second movable plate 120 are respectively movably connected The fixing plates 230 are disposed on both ends of the movable frame assembly 100 , and the mounting positions 131 are disposed on the first connecting rod 130 . It should be noted that the bottom support rod 220 may be vertically arranged or inclined. Further, in this embodiment, the first chute 111 and the first fixing hole 112 are provided on the first movable plate 110, and the first chute 111 and the first fixing hole 112 are also provided on the second movable plate 120, and, Both the first rib 231 and the second fixing hole 232 are disposed on the fixing plate 230 .

In order to improve the structural strength of the movable frame assembly 100, in one embodiment, as shown in FIGS. The upper supporting rod 150 of 130, the second connecting rod 140 is arranged parallel to the first connecting rod 130, and the upper supporting rod 150 is perpendicular to the first connecting rod 130 and the second connecting rod 140 respectively. It should be noted that the upper support rod 150 can be set vertically or inclined.

Furthermore, in order to facilitate the installation and installation of the external tool on the first connecting rod 130, in one embodiment, as shown in Figures 1-3, the second connecting rod 140 is provided with a corresponding installation position 131 The operation hole 141 is provided, through which an external tool extends into the installation position 131 . In this way, an external tool can extend into the installation position 131 through the operation hole 141 , and then perform disassembly operations on the installation connector. Specifically, the positions and numbers of the operation holes 141 are set corresponding to the installation positions 131 . In order to facilitate the installation and attachment of the external tool on the first connecting rod 130 , in other embodiments, the first connecting rod 130 and the second connecting rod 140 can also be vertically staggered.

It should be noted that, in this embodiment, as shown in FIGS. 1-3 , in order to improve the structural strength of the fixing device, the movable frame assembly 100 is provided with a plurality of first connecting rods 130 distributed along the first axis A. A plurality of first reinforcing rods 160 are arranged between adjacent first connecting rods 130 . Likewise, the movable frame assembly 100 is provided with a plurality of second connecting rods 140 distributed along the first axis A, and a plurality of second reinforcing rods 170 are arranged between adjacent second connecting rods 140 . In this way, the overall structural strength of the fixing device is greatly improved.

The technical features of the above-mentioned embodiments can be combined arbitrarily. To make the description concise, all possible combinations of the technical features in the above-mentioned embodiments are not described. However, as long as there is no contradiction in the combination of these technical features, should be considered as within the scope of this specification.

The above-mentioned embodiments only express several implementation modes of the present application, and the description thereof is relatively specific and detailed, but should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make several modifications and improvements without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the scope of patent protection of this application should be based on the appended claims.

Claims (11)

1. A fixing device for a battery pack, characterized in that it comprises a plurality of movable frame assemblies (100) and a fixed seat assembly (200) movably connected with the movable frame assemblies (100), the fixed seat assembly (200 ) is used to carry the movable frame assembly (100) and the battery pack, each of the movable frame assemblies (100) is provided with a mounting position (131), and each of the mounting positions (131) is correspondingly provided with a mounting connection parts, the battery pack is connected to a plurality of the movable frame assemblies (100) through the installation connectors arranged at the installation positions (131), A plurality of the movable frame assemblies (100) can respectively cooperate with the fixed seat assembly (200) along two directions of the first axis A, and each of the installation connectors can move along the second axis A The two directions of B are movably matched with the installation position (131), and the first axis A and the second axis B do not coincide and are not parallel. 2. The fixing device according to claim 1, characterized in that, the first axis A and the second axis B are vertically arranged. 3. The fixing device according to claim 1, characterized in that, the movable frame assembly (100) is provided with a plurality of first sliding grooves (111) extending along the first axis A and arranged in parallel, the The fixing seat assembly (200) is provided with a plurality of first ribs (231) compatible with the first chute (111), and the first ribs (231) can be placed in the first chute ( 111) to slide along the first axis A. 4. The fixing device according to claim 1, characterized in that, the movable frame assembly (100) is provided with a plurality of first fixing holes (112) distributed along the first axis A, and the fixing seat assembly (200) A plurality of second fixing holes (232) distributed along the first axis A are provided, and the fixing device further includes a first fastener, and the first fastener sequentially passes through the first The fixing hole (112) and the second fixing hole (232) are used to fixedly connect the movable frame assembly (100) and the fixing seat assembly (200). 5. The fixing device according to claim 4, characterized in that, the first fixing hole (112) is in the shape of a strip extending along the first axis A, And/or, the second fixing hole (232) is in the shape of a strip extending along the first axis A. 6. The fixing device according to claim 1, characterized in that, the installation position (131) is in the shape of an elongated hole extending along the second axis B, and the fixing device further comprises a second fastener, The second fastening member sequentially passes through the installation position (131) and the assembly structure on the battery pack to fixedly connect the movable frame assembly (100) and the battery pack. 7. The fixing device according to claim 1, characterized in that there are multiple installation positions (131), and the plurality of installation positions (131) are distributed along the second axis B at intervals. 8. The fixing device according to claim 1, characterized in that, the fixing device comprises two oppositely arranged movable frame assemblies (100), and the two movable frame assemblies (100) are arranged along the first The axial direction A is distributed at both ends of the fixed seat assembly (200), and the fixing device further includes two oppositely arranged fixed seat assemblies (200), and the two fixed seat assemblies (200) Distributed at both ends of the movable frame assembly (100) along the second axis B, and the two fixed seat assemblies (200) are arranged at intervals, so that the battery pack can be arranged on the two fixed seat assemblies ( 200). 9. The fixing device according to claim 8, characterized in that, the fixing seat assembly (200) comprises a base plate (210), a fixing plate (230) and a base plate (210) connecting the fixing plate (230). ), the fixed base assembly (200) is fixed on the horizontal plane through the bottom plate (210), and the bottom plate (210) supports the fixed plate (230); the movable frame assembly (100) comprises a first movable plate (110), a second movable plate (120) and a connecting plate connecting the first movable plate (110) and the second movable plate (120) ), the first movable plate (110) and the second movable plate (120) are respectively movably connected to the fixed plates (230) located at both ends of the movable frame assembly (100) ), and the mounting position (131) is set on the first connecting rod (130). 10. The fixing device according to claim 9, characterized in that, the movable frame assembly (100) further comprises a second connecting rod (140) and a plurality of connecting rods connecting the first connecting rod (130) and the second connecting rod (130) The upper supporting rod (150) of the two connecting rods (140), the second connecting rod (140) is arranged parallel to the first connecting rod (130), and the upper supporting rod (150) is respectively perpendicular to the The first connecting rod (130) and the second connecting rod (140). 11. The fixing device according to claim 10, characterized in that, the second connecting rod (140) is provided with an operation hole (141) corresponding to the installation position (131), and an external tool can pass through the The operation hole (141) extends into the installation position (131).

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