Battery rack

Abstract

The utility model relates to a battery rack, and relates to the field of new energy equipment. The utility model provides a battery rack. The battery rack comprises a frame body and a plurality of battery boxes, a plurality of supporting pieces are horizontally arranged in the frame body in a layered mode. The two ends of each supporting piece are rotationally connected with the frame body. The plurality of battery boxes are respectively arranged on the plurality of supporting pieces, and the battery boxes are connected with the plurality of supporting pieces through fasteners. By arranging the supporting pieces rotationally connected with the frame body, when the battery box is assembled, the battery box moves on the supporting pieces in a rolling mode, and after the battery box moves in place in a rolling mode, the battery box and the supporting pieces are fixed through the fasteners. Compared with a traditional battery box assembly mode, the battery rack is simple in structure, high in practicability and high in assembly efficiency; meanwhile, compared with sliding friction in the prior art, rolling friction exists between the lower bottom plate of the battery box and the supporting piece, and damage to the lower bottom plate of the battery box body is small.

Description

Technical Field

[0001] The utility model relates to the field of new energy equipment, and particularly to a battery rack. Background Art

[0002] With the rapid development of the new energy industry, many commercial vehicles have started using lithium batteries as power, especially in the heavy truck industry, where the share of new energy heavy trucks is continuously increasing. Due to the large load capacity of heavy trucks, in order to ensure the endurance requirement, large-capacity batteries need to be carried.

[0003] After research by the inventor, it is found that the current mainstream truck batteries are stacked by several standard battery boxes. In order to install these battery boxes, many manufacturers have designed various battery racks, most of which are welded and assembled with square tubes. In order to ensure the strength of the battery rack, designers have added a large number of steel frame structures during the design process, plus the internal components; this has caused the weight of the entire system to rise linearly, which will greatly affect the energy density of the entire system, thereby reducing the endurance mileage of the vehicle. At the same time, the assembly is complex, the assembly efficiency is low, and there is sliding friction with the lower bottom plate of the battery box, causing certain damage to the lower bottom plate. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a battery rack, which has a simple structure, strong practicability, high assembly efficiency, and little damage to the lower bottom plate of the battery box.

[0005] The embodiments of the utility model are implemented as follows:

[0006] A battery rack proposed by the utility model includes a frame body and a plurality of battery boxes; a plurality of support members are horizontally and hierarchically arranged in the frame body, and two ends of the support members are rotatably connected to the frame body; the plurality of battery boxes are respectively arranged on the plurality of support members, and the battery boxes and the plurality of support members are connected by fasteners.

[0007] Optionally, first threads are provided at two ends of the support member, a plurality of support seats are provided on the frame body, second threads and bearings matched with the first threads are provided in the support seats, and two ends of the support member are threadedly and rotatably connected to the support seats;

[0008] Mounting holes are provided at two ends of the support member, and the fasteners pass through the mounting holes to be connected to the battery box.

[0009] Optionally, a friction surface is provided on the surface of the middle section of the support member, and the friction surface is in friction rolling connection with the lower bottom plate of the battery box.

[0010] Optionally, the battery rack further includes a plurality of limiting members, which are connected to the frame body. The limiting members are arranged between two adjacent battery boxes and are used to limit the battery boxes, the thermal management unit, and the high-voltage box.

[0011] Optionally, the frame body includes at least two support structures and a transverse connecting member. At least two of the support structures are symmetrically arranged, and the support member and the transverse connecting member are connected between at least two of the support structures.

[0012] Optionally, the support structure includes a U-shaped bracket and a plurality of axial connecting members. Both ends of the axial connecting member are connected to the U-shaped ends of the U-shaped bracket; the support member is rotatably connected to the axial connecting member, and the transverse connecting member is connected to the U-shaped bracket.

[0013] Optionally, the support structure and the transverse connecting member are of a pipe beam structure or a square pipe structure; a first cavity is provided inside the support structure, and a second cavity is provided inside the transverse connecting member, and the first cavity and the second cavity are communicated.

[0014] Optionally, the support structure is provided with a liquid inlet adapter pipe and a liquid replenishing adapter pipe; the liquid inlet adapter pipe is arranged on the support structure, one end of the liquid inlet adapter pipe communicates with the first cavity, and the other end communicates with the liquid inlet of the battery box;

[0015] The liquid replenishing adapter pipe is arranged on the transverse connecting member, one end of the liquid replenishing adapter pipe communicates with the second cavity, and the other end communicates with the liquid outlet of the thermal management unit.

[0016] Optionally, the frame body forms an upper layout area and a lower layout area. The upper layout area is used to arrange the high-voltage box, the expansion water tank, and the thermal management unit, and the lower layout area is used to arrange the battery box.

[0017] Optionally, the battery rack further includes a plurality of cover plates, which are arranged around the frame body; at least one of the cover plates is provided with an opening.

[0018] The beneficial effects of the embodiments of the present invention are as follows:

[0019] For the battery rack proposed by the present invention, by providing a support member rotatably connected to the frame body, when assembling the battery box, the battery box rolls and moves on the top of a plurality of support members, and after the battery box rolls and moves in place, it is fixed to the support member through fasteners. Compared with the traditional battery box assembly method, the battery rack thus arranged has a simple structure, strong practicability, and high assembly efficiency; at the same time, compared with the sliding friction of the prior art, the rolling friction between the lower bottom plate of the battery box and the support member causes less damage to the lower bottom plate of the battery box body. Description of the Drawings

[0020] To more clearly illustrate the technical solutions of the embodiments of the present utility model, the accompanying drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following accompanying drawings only show certain embodiments of the present utility model and should not be regarded as limiting the scope. For those of ordinary skill in the art, other related accompanying drawings can be obtained based on these drawings without creative efforts.

[0021] Figure 1 Structural schematic diagram of the battery rack of the embodiment of the present utility model provided with a mask;

[0022] Figure 2 Loading schematic diagram of the battery rack of the embodiment of the present utility model;

[0023] Figure 3 Structural schematic diagram of the U-shaped bracket of the embodiment of the present utility model;

[0024] Figure 4 First structural schematic diagram of the battery rack of the embodiment of the present utility model;

[0025] Figure 5 Schematic diagram of the connection between the support base and the support member of the embodiment of the present utility model;

[0026] Figure 6 Second structural schematic diagram of the battery rack of the embodiment of the present utility model;

[0027] Figure 7 Schematic diagram of the battery rack of the embodiment of the present utility model being put into the frame.

[0028] Icons: 010 - battery rack; 011 - direction of putting into the frame; 100 - frame body; 101 - bracket structure; 110 - U-shaped bracket; 111 - first bracket; 112 - second bracket; 113 - third bracket; 114 - arc-shaped connecting piece; 120 - axial connecting piece; 102 - transverse pulling connecting piece; 103 - support base; 104 - limiting piece; 105 - installation beam; 106 - liquid inlet adapter pipe; 107 - liquid replenishing adapter pipe; 200 - support member; 201 - installation hole; 210 - first support member; 220 - second support member; 230 - third support member; 240 - fourth support member; 300 - battery box; 400 - thermal management unit; 410 - expansion water kettle; 500 - high-voltage box; 600 - mask; 610 - opening. Detailed implementation manners

[0029] To make the objectives, technical solutions, and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are some, but not all, of the embodiments of the present utility model. The components of the embodiments of the present utility model usually described and illustrated in the accompanying drawings here can be arranged and designed in various different configurations.

[0030] Therefore, the following detailed description of the embodiments of the present utility model provided in the accompanying drawings is not intended to limit the scope of the claimed present utility model, but merely represents selected embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts fall within the protection scope of the present utility model.

[0031] It should be noted that similar reference numerals and letters indicate similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0032] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the utility model product is usually placed during use. 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 element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be construed as a limitation of the present utility model. In addition, the terms "first", "second", "third", etc. are only used for descriptive distinction and cannot be understood as indicating or implying relative importance.

[0033] In addition, terms such as "horizontal" and "vertical" do not mean that the components are required to be absolutely horizontal or hanging, but can be slightly inclined. For example, "horizontal" only means that its direction is more horizontal relative to "vertical", and does not mean that the structure must be completely horizontal, but can be slightly inclined.

[0034] In the description of the present utility model, it should also be noted that unless otherwise clearly specified and defined, the terms "set", "installed", "connected", and "connected" 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, and it can be the communication inside two elements. 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 situations.

[0035] The present utility model provides a battery rack 010, which is installed on the girder of an automobile through an adapter bracket and is used to load a battery box 300 of the automobile power source to ensure the endurance requirement of the automobile.

[0036] Among them, the automobile can be a new energy vehicle, a new energy heavy truck, etc.

[0037] Please refer to Figure 1 and Figure 2 In this embodiment, a battery rack 010 is provided, which includes a frame body 100, a plurality of support members 200 and a plurality of battery boxes 300; a plurality of support members 200 are horizontally and hierarchically arranged in the frame body 100, and both ends of the support members 200 are rotatably connected to the frame body 100; a plurality of battery boxes 300 are respectively arranged on the plurality of support members 200, and the battery boxes 300 and the plurality of support members 200 are connected by fasteners.

[0038] It can be understood that by providing the support members 200 rotatably connected to the frame body 100, when assembling the battery box 300, the battery box 300 rolls and moves on the plurality of support members 200, and after the battery box 300 rolls and moves in place, it is fixed to the support members 200 by fasteners. Compared with the traditional assembly method of the battery box 300, the battery rack 010 thus arranged has a simple structure, strong practicability and high assembly efficiency; at the same time, compared with the sliding friction of the prior art, the bottom plate of the battery box 300 and the support members 200 are in rolling friction, which causes little damage to the bottom plate of the battery box 300 body.

[0039] In this embodiment, the battery rack 010 includes a battery box 300.

[0040] In this embodiment, please refer to Figure 2 , the battery box 300 can adopt a liquid-cooled battery box 300; the battery box 300 includes a box body and a plurality of battery cells, a collection wire harness, a battery management slave control unit, etc. arranged in the box body, and fixing holes for fixing to the support members 200 are provided on the bottom plate of the box body.

[0041] Among them, the liquid-cooled battery box 300 can be an immersion-type battery box 300, a coolant plate-type battery box 300, or a flow channel-type battery box 300.

[0042] Please refer to Figures 4 - 6 , in this embodiment, the battery rack 010 includes a frame body 100.

[0043] In this embodiment, please refer to Figure 4 and Figure 6, the frame body 100 includes two bracket structures 101 and a transverse connecting member 102. The two bracket structures 101 are symmetrically arranged, and a support member 200 and a transverse connecting member 102 are connected between the two bracket structures 101. Of course, in other embodiments, the number of bracket structures 101 can also be three, four, etc. The number of bracket structures 101 can be increased according to the needs of the vehicle to increase the power source capacity and endurance.

[0044] In this embodiment, please refer to Figure 3 , the bracket structure 101 includes a U-shaped bracket 110 in the form of a pipe beam structure and an axial connecting member 120. Both ends of the axial connecting member 120 are connected to the U-shaped ends of the U-shaped bracket 110; the support member 200 is rotatably connected to the axial connecting member 120, and the transverse connecting member 102 is connected to the U-shaped bracket 110.

[0045] In this embodiment, please refer to Figure 3 , the U-shaped bracket 110 includes a first bracket 111, a second bracket 112, and a third bracket 113. The first bracket 111 and the second bracket 112 are arranged towards the same side, and are respectively vertically arranged at both ends of the third bracket 113 through arc-shaped connecting members 114, so as to form the bracket structure 101 in a U-shaped structure in this way. One end of the axial connecting member 120 is connected to communicate with the first bracket 111, and the other end is connected to communicate with the second bracket 112.

[0046] Among them, since the arc-shaped connecting member 114 makes the two sides of the top of the U-shaped bracket 110 designed with an arc-shaped structure, such a design is beneficial to reducing wind resistance and reducing the power consumption of the vehicle.

[0047] In this embodiment, a plurality of axial connecting members 120 are used to rotatably connect the support member 200, and the plurality of axial connecting members 120 are arranged in parallel in sequence so that the frame body 100 forms multiple layers of support members 200 arranged at intervals.

[0048] Among them, please refer to Figure 5 , a plurality of support seats 103 are provided on the axial connecting member 120, and bearings are provided in the support seats 103 so that both ends of the support member 200 are rotatably connected to the support seats 103; a second thread that mates with the first thread is provided on the support seat 103, and the second thread mates with the first thread to ensure that the battery box 300 can roll on the support member 200 and can assemble the battery box 300 in place.

[0049] It is worth mentioning that the plurality of support seats 103 on adjacent two axial connecting members 120 are relatively symmetrically arranged. And the gap between the bearing support seat 103 and both ends of the battery box 300 is small, which can limit the front and rear side walls of the battery box 300 to prevent the situation that the battery box 300 radially moves along the direction of the support member 200 due to rolling on the support member 200.

[0050] It is worth mentioning that, since the first bracket 111, the second bracket 112, the third bracket 113, the arc-shaped connecting member 114, and the axial connecting member 120 are all pipe beam structures with internal through cavities, the U-shaped bracket 110 formed by welding and connecting the first bracket 111, the second bracket 112, the third bracket 113, the arc-shaped connecting member 114, and the axial connecting member 120 and communicating them forms a first cavity inside the U-shaped bracket 110.

[0051] In this embodiment, the transverse pulling connecting member 102 is arranged at the top of the U-shaped bracket 110. One end of the transverse pulling connecting member 102 is connected to the third bracket 113 of one U-shaped bracket 110, and the other end is connected to the third bracket 113 of another U-shaped bracket 110; a plurality of transverse pulling connecting members 102 are arranged in parallel in sequence between the third brackets 113 of the two U-shaped brackets 110. Among them, the plurality of transverse pulling connecting members 102 are fixedly connected to the third brackets 113 of the two U-shaped brackets 110 and together with the multi-layer support members 200 form a structurally stable frame body 100.

[0052] Among them, the transverse pulling connecting member 102 is a pipe beam structure with an internal through cavity, so that a second cavity is formed inside the transverse pulling connecting member 102. The transverse pulling connecting member 102 and the U-shaped bracket 110 are welded and connected, and the first cavity and the second cavity are communicated.

[0053] In this embodiment, please refer to Figure 4 and Figure 5 , the frame body 100 further includes a plurality of support members 200. The plurality of support members 200 are arranged in parallel in sequence. One end of the support member 200 is rotatably connected to the support seat 103 of one side axial connecting member 120, and the other end is rotatably connected to the support seat 103 of the other side axial connecting member 120.

[0054] Specifically, the support member 200 is a roller structure; first threads are provided at both ends of the support member 200, and both ends of the support member 200 are rotatably connected to the bearings in the support seats 103 on both sides. At the same time, the support member 200 is threadedly connected to the second threads of the support seats 103 on both sides through the first threads at both ends; among them, the middle section of the support member 200 is a smooth rod structure, and the surface of the middle section has a friction surface with a certain roughness. The roughness of the surface of the support member 200 can ensure that when the battery box 300 rolls and moves on the support member 200, it is sufficient to ensure that a rolling friction force can be generated between the two; among them, mounting holes 201 are provided at both ends of the support member 200, and fasteners pass through the mounting holes 201 and are connected to the battery box 300.

[0055] In this embodiment, the first thread is an external thread and the second thread is an internal thread. Of course, the first thread can also be an internal thread and the second thread can also be an external thread.

[0056] Specifically, according to the set number of the axial connectors 120, multiple layers of the support members 200 can be provided on the frame body 100 and are used for loading multiple layers of the battery boxes 300.

[0057] Please refer to Figure 7 , in this embodiment, four support members 200 are correspondingly provided for one battery box 300. Starting from the frame-entering direction 011, the support members 200 are successively the first support member 210, the second support member 220, the third support member 230, and the fourth support member 240. No mounting holes 201 are provided on the fourth support member 240, and mounting holes 201 are provided on the first support member 210, the second support member 220, and the third support member 230.

[0058] It is worth mentioning that in order to ensure that the mounting holes 201 on the support members 200 can match the fixing holes of the battery box 300, the second thread in the bearing support seats 103 corresponding to the above three support members 200 is improved.

[0059] It can be understood that please refer to Figure 7 , when the battery box 300 enters the frame starting from the frame-entering direction 011, the top end of the battery box 300 first contacts the fourth support member 240, and a vertical pressure is generated between the lower bottom plate of the battery box 300 and the support member 200, thereby indirectly generating a rolling friction force in the horizontal direction. This friction force drives the support member 200 to rotate around the bearing support seat 103. Since the fourth support member 240 only contacts the battery box 300 in the early stage, no mounting holes 201 are designed on the fourth support member 240. As the box body further advances, it begins to contact the third support member 230, the second support member 220, and the first support member 210 in sequence, and drives these three support members 200 to rotate under the action of the rolling friction force. Among them, the contact time between the third support member 230 and the battery box 300 is the longest, so the number of rotations of the two ends of the third support member 230 in the two side support seats 103 is the most, followed by the second support member 220 and the first support member 210.

[0060] Therefore, without considering slipping, the distance that the battery box 300 is pushed can be converted into the number of rotations of the bearing, and finally the number of rotations of the above three support members 200 respectively is obtained, and then corresponding designs are made in their corresponding support seats 103, such as restricting the number of thread turns and the depth of the second thread inside the support seat 103, to ensure that when the top end of the battery box 300 contacts the limiting member 104, the hole positions of the mounting holes 201 on each support member 200 can exactly communicate with the hole positions of the fixing holes on the battery box 300. At the same time, before assembly, it is necessary to manually rotate all the bearings counterclockwise to the in-place position.

[0061] In this embodiment, in order to ensure that the battery box 300, the thermal management unit 400, and the high-voltage box 500 are assembled in place, limit members 104 are designed at the top of the assembly directions of these components, thus facilitating assembly and improving assembly efficiency. Therefore, the battery rack 010 further includes a plurality of limit members 104. The plurality of limit members 104 are connected to the frame body 100, and the limit member 104 is disposed between two adjacent battery boxes 300 and is used to limit the battery box 300.

[0062] Optionally, please refer to Figure 4 , the limit member 104 is a bracket structure 101. One end of the limit member 104 is connected to one side axial connecting member 120, and the other end is connected to the other side axial connecting member 120. Among them, only one can be provided between adjacent battery boxes 300, and the two can share one; of course, two can also be arranged at intervals between adjacent battery boxes 300, and each of the two battery boxes 300 corresponds to and uses one.

[0063] In this embodiment, please refer to Figure 2 and Figure 4 , the frame body 100 forms an upper layout area and a lower layout area. The upper layout area is used to arrange the high-voltage box 500, the expansion water tank 410, and the thermal management unit 400, and the lower layout area is used to arrange the battery box 300.

[0064] Specifically, the upper layout area is divided into a first layout area, a second layout area, and a third layout area.

[0065] Among them, please refer to Figure 2 and Figure 4 , the high-voltage box 500 can be arranged on the first layout area or the third layout area. The high-voltage box 500 is fixedly connected to a plurality of support members 200 at the bottom through fasteners; electrical units such as relays, fuses, pre-charge resistors, and battery management systems are arranged inside the high-voltage box 500, and its main function is to control the voltage output of the battery system.

[0066] Among them, please refer to Figure 2 and Figure 4 , the thermal management unit 400 can be arranged on the first layout area or the third layout area. The thermal management unit 400 is fixedly connected to a plurality of support members 200 at the bottom through fasteners; the main function of the thermal management unit 400 (liquid cooling unit) is to provide coolant for the liquid-cooled battery box 300 inside the battery system. Through heat exchange, the heat generated by the battery box 300 can be taken out of the system, so that the system works within a reasonable temperature range.

[0067] Among them, please refer to Figure 2 and Figure 4, the expansion water tank 410 can be arranged in the second arrangement area. Correspondingly, an installation beam 105 is provided on the support structure 101 in the second arrangement area, and the expansion water tank 410 is installed on the installation beam 105; its main function is to play a role in liquid injection and compensation.

[0068] In this embodiment, please refer to Figure 6 , the support structure 101 is provided with a liquid inlet adapter pipe 106 and a liquid replenishment adapter pipe 107; among them, the liquid inlet adapter pipe 106 is arranged on the first support 111 and the second support 112 of the support structure 101, and multiple liquid inlet adapter pipes 106 are respectively arranged for the battery box 300. One end of the liquid inlet adapter pipe 106 communicates with the first cavity, and the other end communicates with the liquid inlet of the battery box 300. Among them, the liquid replenishment adapter pipe 107 is arranged on the transverse connecting member 102, and the liquid replenishment adapter pipe 107 corresponds. One end of the liquid replenishment adapter pipe 107 communicates with the second cavity, and the other end communicates with the liquid outlet of the thermal management unit 400.

[0069] Among them, quick-connect plugs are designed on these liquid inlet adapter pipes 106, and the liquid inlet adapter pipes 106 are arranged inside the U-shaped support, mainly to avoid the phenomenon of mutual interference between the battery box 300 and the liquid inlet adapter pipes 106 when the battery box is put into the frame.

[0070] It is worth mentioning that the U-shaped support 110, the axial connecting member 120 and the transverse connecting member 102 in this embodiment are all pipe beam structures. Compared with the square pipe structure, the pipe beam structure has more uniform bearing capacity around and stronger impact resistance.

[0071] Specifically, due to the large battery system power, heavy load and high battery heating temperature of heavy trucks, in order to quickly conduct heat exchange, in addition to increasing the power of the water pump and increasing the rotation speed to accelerate the flow rate, there is also a solution to increase the coolant flow rate, which results in the gradual thickening of the liquid cooling pipelines of the battery box 300. These thick pipelines crisscross inside the battery box 300, which not only affects the assembly efficiency, but also increases the component cost. At the same time, using rubber pipelines also has a risk of liquid leakage during use, and it will age, fail at high temperature and crack at low temperature over time. In order to reduce this risk, this embodiment utilizes the through cavity provided inside the pipe beam structure to form the first cavity of the U-shaped support 110 and the second cavity inside the transverse connecting member 102 that are connected to each other. At the same time, the coolant is injected into the pipe beam structure. Since the pipe beam structure has a certain wall thickness and is made of metal material, its impact resistance is stronger.

[0072] Please refer to the figure. The coolant coming out of the liquid outlet of the thermal management unit 400 is directly injected into the second cavity inside the transverse connecting member 102 through the liquid replenishment adapter pipe 107, and the coolant flows into the first cavity of the U-shaped support through the second cavity; then the coolant is respectively injected into the liquid inlet of the battery box 300 through the liquid inlet adapter pipes 106.

[0073] In this embodiment, the battery rack 010 further includes a plurality of mask plates 600, and the plurality of mask plates 600 are arranged around the frame body 100; openings 610 are provided on the mask plates 600 on both sides of the frame body 100. Among them, setting the mask plates 600 can play a certain protective role for the internal components; and openings 610 with a louver structure are designed above the mask plates 600 on both sides, and its main function is to facilitate the intake and exhaust of the thermal management unit 400 at the top.

[0074] The working principle of the battery rack 010 proposed in this embodiment is as follows:

[0075] Arrange the high-voltage box 500 on the first layout area of the upper layout area, and push the high-voltage box 500 along the support member 200 on the upper layer from the frame entry direction 011 until the high-voltage box 500 abuts against the limiting member 104, and fixedly connect the high-voltage box 500 with the plurality of support members 200 at the bottom through fasteners.

[0076] Arrange the thermal management unit 400 on the third layout area of the upper layout area, and push the thermal management unit 400 along the support member 200 on the upper layer from the frame entry direction 011 until the high-voltage box 500 abuts against the limiting member 104, and fixedly connect the high-voltage box 500 with the plurality of support members 200 at the bottom through fasteners. At the same time, connect the liquid outlet of the thermal management unit 400 with the liquid replenishment transfer pipe 107.

[0077] Arrange the thermal management unit 400 on the expansion water kettle 410 in the upper layout area, and install the expansion water kettle 410 on the installation beam 105.

[0078] Arrange a plurality of battery boxes 300 in the lower layout area, and push the plurality of battery boxes 300 along the support members 200 on the lower layer from the frame entry direction 011 until the battery boxes 300 abut against the limiting member 104, and fixedly connect the battery boxes 300 with the plurality of support members 200 at the bottom through fasteners.

[0079] After the overall exterior of the battery rack 010 is installed with the mask plates 600, install the battery rack 010 on the vehicle frame through the adapter bracket.

[0080] In summary, for the battery rack 010 proposed by the present utility model, by providing the support members 200 rotatably connected to the frame body 100, when assembling the battery boxes 300, the battery boxes 300 roll and move on the plurality of support members 200, and after the battery boxes 300 roll and move in place, they are fixed to the support members 200 through fasteners. Compared with the traditional assembly method of the battery box 300, the battery rack 010 arranged in this way has a simple structure, strong practicability and high assembly efficiency; at the same time, compared with the sliding friction of the prior art, the rolling friction between the lower bottom plate of the battery box 300 and the support member 200 causes less damage to the lower bottom plate of the battery box 300 body.

[0081] Further, the number of thread turns and the depth of the second thread inside the support base 103 are set differently to ensure that when the top end of the battery box 300 contacts the limiting member 104, the hole positions of the mounting holes 201 on each support member 200 can exactly correspond to the hole positions of the fixing holes on the battery box 300 and communicate with each other.

[0082] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A battery rack, characterized in that: include: A frame body, wherein a plurality of support members are horizontally layered inside the frame body, and both ends of the support members are rotatably connected to the frame body; A plurality of battery boxes are arranged on the plurality of support members respectively, and the battery boxes are connected to the plurality of support members via fasteners.

2. The battery rack according to claim 1, characterized in that: The two ends of the support member are provided with a first thread, the frame body is provided with a plurality of support seats, the support seats are provided with a second thread matched with the first thread and a bearing, and the two ends of the support member are rotatably connected with the support seats; Both ends of the support member are provided with mounting holes, and the fastener passes through the mounting holes and is connected to the battery box.

3. The battery rack according to claim 1, characterized in that: A friction surface is provided on the surface of the middle section of the support member, and the friction surface is frictionally and rollingly connected with the lower bottom plate of the battery box.

4. The battery rack according to claim 1, characterized in that: The battery rack also includes a plurality of limiting members, which are connected to the frame body. The limiting members are arranged between two adjacent battery boxes and are used to limit the battery boxes, the thermal management unit and the high-voltage box.

5. The battery rack according to claim 1, characterized in that: The frame body comprises at least two support structures and a transverse connecting member, the at least two support structures are symmetrically arranged, and the support member and the transverse connecting member are connected between the at least two support structures.

6. The battery rack according to claim 5, characterized in that: The support structure comprises a U-shaped support and a plurality of axial connectors, wherein two ends of the axial connectors are connected to the U-shaped ends of the U-shaped support; The support member is rotatably connected to the axial connection member, and the transverse connection member is connected to the U-shaped bracket.

7. The battery rack according to claim 5, characterized in that: The support structure and the horizontal tie connector are tubular beam structures or square tube structures; A first cavity is provided in the support structure, a second cavity is provided in the transverse connecting member, and the first cavity is communicated with the second cavity.

8. The battery rack according to claim 7, characterized in that: The support structure is provided with a liquid inlet transfer tube and a liquid replenishment transfer tube; The liquid inlet transfer pipe is arranged on the support structure, one end of the liquid inlet transfer pipe is connected to the first cavity, and the other end is connected to the liquid inlet of the battery box; The liquid replenishment transfer tube is arranged on the horizontal pull connector, one end of the liquid replenishment transfer tube is connected to the second cavity, and the other end of the liquid replenishment transfer tube is connected to the liquid outlet of the thermal management unit.

9. The battery rack according to claim 1, characterized in that: The frame body forms an upper layout area and a lower layout area, the upper layout area is used to arrange the high-pressure box, the expansion kettle and the thermal management unit, and the lower layout area is used to arrange the battery box.

10. The battery rack according to claim 1, characterized in that: The battery rack further comprises a plurality of panels, and the plurality of panels are arranged around the frame body; At least one of the masks is provided with an opening.

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