Electric forklifts, battery racks for electric forklifts and their working methods

Abstract

This invention provides an electric forklift, a battery rack for the electric forklift, and a method for operating the same. The battery rack for the electric forklift includes: a frame body with multiple insertion slots; a support assembly at the bottom of each insertion slot; the support assembly includes: a support base plate; a pull-out top plate; an elastic element disposed within the support base plate; and the pull-out top plate elastically connected to the support base plate. By incorporating an elastic element within the support base plate, and in conjunction with the elastic connection between the pull-out top plate and the support base plate, rigid impacts are converted into elastic buffering, effectively absorbing the energy from road bumps and vibrations, preventing the battery pack from loosening, the slots from deforming, or falling off. Furthermore, when removing the battery pack, the support base plate is tilted by changing the battery pack's center of gravity, eliminating the need to lift the battery pack, reducing the structural space required for battery replacement, enabling a compact battery layout, and improving space utilization.

Description

Technical Field

[0001] This invention belongs to the field of new energy vehicle technology, specifically relating to a battery pack placement device for new energy vehicles, and particularly to an electric forklift, a battery rack for an electric forklift, and a method for its operation. Background Technology

[0002] As an important handling equipment in ports, the vibration resistance and ease of maintenance of electric forklifts directly affect operational efficiency and safety.

[0003] In related technologies, electric forklift battery racks mostly adopt rigid fixed structures. When the forklift is operating, the impact force generated by road bumps, engine vibration, or load changes will be directly transmitted to the battery pack, causing the battery pack to loosen. Long-term vibration may cause the slot to deform or the battery pack fixing parts to fatigue and fail, eventually falling off and to the ground. Moreover, when repairing the battery pack, it is necessary to lift the battery pack and then remove it, which requires a lot of space.

[0004] Therefore, how to facilitate the removal of the battery pack from the battery rack while meeting the requirements for battery pack shock absorption is a technical problem that urgently needs to be solved.

[0005] It should be noted that the information disclosed in this background section is only for understanding the background technology of the present application concept, and therefore, the above description is not considered to constitute prior art information. Summary of the Invention

[0006] This disclosure provides at least one embodiment of an electric forklift, a battery rack for an electric forklift, and a method for operating the same.

[0007] In a first aspect, embodiments of this disclosure provide a battery rack for an electric forklift, comprising: The frame body has multiple insertion slots; A support component is provided at the bottom of the insertion slot; The support components include: Support base plate; A pull-out top plate is slidably mounted on the supporting base plate and connected to the supporting base plate by a pin; The supporting base plate is equipped with an elastic element; The pull-out top plate is elastically connected to the supporting bottom plate; After the battery pack is inserted into the insertion slot and comes into contact with the pull-out top plate, the support base plate is compressed to cushion the battery pack. When it is necessary to remove the battery pack, the pin is released and the pull-out top plate is pulled to change the center of gravity of the battery pack, so that the support base plate tilts in the direction of pulling out the battery pack to facilitate the removal of the battery pack.

[0008] In one optional embodiment, the supporting base plate includes: The base plate body has a groove on its top; The elastic element is disposed within the groove; A cover plate is provided on the top of the groove; The cover plate is elastically connected to the groove via an elastic element.

[0009] In one alternative embodiment, the elastic element includes: Two sets of compression springs; Two sets of compression springs are respectively arranged on both sides of the groove; The two sides of the cover plate are elastically connected to the groove by corresponding sets of compression springs.

[0010] In one alternative embodiment, the height of the top surface of the cover plate is higher than the height of the top surface of the groove.

[0011] In one optional embodiment, an elastic filling layer is provided within the groove; The elastic filling layer is disposed between the cover plate and the base plate body.

[0012] In one optional embodiment, a water storage cavity is formed within the elastic filling layer; The water storage chamber contains coolant; Both the cover plate and the pull-out top plate are made of thermally conductive materials. When the electric forklift experiences bumps, the battery pack repeatedly compresses the support base plate to accelerate the flow of coolant in the water storage chamber.

[0013] In one alternative implementation, the pull-out top panel includes: Horizontal plate; A pull-out panel, which is perpendicular to the horizontal panel and fixedly connected to the horizontal panel; The pull-out plate has an insertion hole; The supporting base plate has a sliding hole at the fitting point with the insertion hole; The pin passes through the insertion hole and the sliding hole in sequence, and is then fixed by a nut.

[0014] In one alternative embodiment, a limiting plate extends upward from the top surface of the pull-out plate; The limiting plate abuts against the side wall of the battery pack.

[0015] Secondly, this disclosure also provides a powered forklift, comprising: Forklift body; The battery rack for electric forklifts, as described above, is mounted on the chassis of the forklift body. The battery pack is inserted into the frame body.

[0016] Thirdly, this disclosure also provides a method for operating an electric forklift battery rack as described above. When in use, the working method includes: Insert the battery pack into the insertion slot; The pull-out top plate is connected to the supporting base plate using pins; When the battery pack vibrates, the support base plate is compressed to cushion the battery pack. The working method for maintaining the battery pack includes: Release the pin's limit; The battery pack center is changed by pulling the top plate with external force; The support base plate is tilted along the direction in which the battery pack is pulled out to compress the elastic element, making it easier to remove the battery pack.

[0017] In one optional embodiment, the supporting base plate includes: The base plate body has a groove on its top; The elastic element is disposed within the groove; A cover plate is provided on the top of the groove; The cover plate is elastically connected to the groove via an elastic element.

[0018] The beneficial effects of this invention are that the electric forklift, the battery rack for the electric forklift, and its working method, by setting elastic elements in the support base plate and cooperating with the structure of elastic connection between the pull-out top plate and the support base plate, convert rigid impact into elastic buffer, effectively absorbing the energy of road bumps and vibrations, and preventing the battery pack from loosening, the slot from deforming or falling off. At the same time, when the battery pack is removed, the support base plate is tilted by changing the center of gravity of the battery pack, eliminating the need to lift the battery pack, reducing the structural space required for battery replacement, enabling a compact battery layout, and improving space utilization.

[0019] Other features and advantages of the invention will be set forth in the following description, and will be apparent in part from the description, or may be learned by practicing the invention. The objects and other advantages of the invention are realized and obtained through the structures particularly pointed out in the description and the drawings.

[0020] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, preferred embodiments are described in detail below with reference to the accompanying drawings. Attached Figure Description

[0021] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0022] Figure 1 This is a schematic diagram of the structure of the battery rack for an electric forklift provided in an embodiment of this disclosure; Figure 2 A cross-sectional view of a battery rack for an electric forklift provided in an embodiment of this disclosure; Figure 3 A cross-sectional view of a support component provided in an embodiment of this disclosure; Figure 4 A flowchart illustrating the operation method of the battery rack for electric forklifts provided in this embodiment of the present disclosure during use. Figure 5 A flowchart illustrating the operation method of the battery rack for an electric forklift provided in this embodiment of the present disclosure during maintenance.

[0023] In the diagram: 100, frame body; 110, insertion slot; 120, support assembly; 121, support base plate; 1211, base plate body; 1212, groove; 1213, cover plate; 1214, elastic filling layer; 122, pull-out top plate; 1221, horizontal plate; 1222, pull-out plate; 1222a, insertion hole; 1223, limiting plate; 123, elastic element; 124, pin; 200, battery pack; 300, chassis. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0025] In this document, when it is mentioned that a first component is located on a second component, this can mean that the first component can be directly formed on the second component, or that a third component can be inserted between the first and second components. Furthermore, in the accompanying drawings, the thickness of the components may be exaggerated or reduced for the purpose of effectively describing the technical content.

[0026] In this document, when an element or layer is referred to as “located,” “joined to,” “connected to,” “attached to,” or “coupled to” another element or layer, it may be directly located, joined, connected, attached to, or coupled to the other element or layer, or there may be intermediate elements or layers present. Conversely, when an element is referred to as “directly on another element or layer,” “directly joined to,” “directly connected to,” “directly attached to,” or “directly coupled to” another element or layer, there may be no intermediate elements or layers present. Other terms used to describe relationships between elements should be interpreted in a similar manner (e.g., “between” versus “directly between,” “adjacent” versus “directly adjacent,” etc.). As used herein, the term “and / or” includes any and all combinations of one or more of the related listed items.

[0027] In this document, exemplary embodiments of the present disclosure will be described in more detail with reference to the accompanying drawings. As used herein, expressions such as “at least one of…” modify the entire list of elements when following a list of elements, rather than individual elements in the list. For example, the expression “at least one of a, b, and c” should be understood to include only a, only b, only c, both a and b, both a and c, both b and c, or all of a, b, and c.

[0028] The terminology used herein is for the purpose of describing specific exemplary configurations only and is not intended to be limiting. As used herein, the singular articles “a,” “an,” and “the” may also be intended to include plural forms unless otherwise expressly stated herein. The terms “comprising,” “including,” and “having” are inclusive and thus specify the presence of features, steps, operations, elements, and / or components, but do not preclude the presence or addition of one or more other features, steps, operations, elements, components, and / or combinations thereof. The method steps, processes, and operations described herein should not be construed as requiring them to be performed in the specific order discussed or shown, unless specifically identified as such. Additional or alternative steps may be employed.

[0029] As used herein, the phrases “in one embodiment,” “according to one embodiment,” “in some embodiments,” etc., generally refer to the fact that a particular feature, structure, or characteristic following the phrase can be included in at least one embodiment of this disclosure. Therefore, a particular feature, structure, or characteristic can be included in more than one embodiment of this disclosure, such that these phrases do not necessarily refer to the same embodiment. As used herein, the terms “example,” “exemplary,” etc., are used to “serve as an example, instance, or illustration.” Any implementation, aspect, or design described herein as “example” or “exemplary” is not necessarily to be construed as preferred or superior to other implementations, aspects, or designs. Rather, the use of the terms “example,” “exemplary,” etc., is intended to present concepts in a specific manner.

[0030] Research has found that electric forklift battery racks mostly use rigid fixed structures. When the forklift is operating, the impact force generated by road bumps, engine vibration, or load changes will be directly transmitted to the battery pack, causing the battery pack to loosen. Long-term vibration may cause the slots to deform or the battery pack fixing parts to fatigue and fail, eventually falling off and to the ground. Moreover, when repairing the battery pack, it is necessary to lift the battery pack and remove it, which requires a lot of space.

[0031] Based on the above research, this disclosure provides an electric forklift, a battery rack for the electric forklift, and a method for its operation. By setting an elastic element 123 in the support base plate 121 and cooperating with the pull-out top plate 122 which is elastically connected to the support base plate 121, rigid impact is converted into elastic buffer, effectively absorbing the energy of road bumps and vibrations, and preventing the battery pack 200 from loosening, the slot from deforming, or falling off. At the same time, when the battery pack 200 is removed, the support base plate 121 is tilted by changing the center of gravity of the battery pack 200, eliminating the need to lift the battery pack 200, reducing the structural space required for battery replacement, enabling a compact battery layout, and improving space utilization.

[0032] The shortcomings of the above solutions are the result of the inventor's practical experience and careful research. Therefore, the discovery process of the above problems and the solutions proposed in this disclosure should be considered as the inventor's contribution to this disclosure.

[0033] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0034] The following detailed description of some embodiments of the present invention is provided in conjunction with the accompanying drawings. Unless otherwise specified, the following embodiments and features can be combined with each other.

[0035] Please see Figure 1 and Figure 2At least one embodiment of this disclosure provides a battery rack for an electric forklift, comprising: a frame body 100 having a plurality of insertion slots 110; a support assembly 120 being provided at the bottom of the insertion slots 110; the support assembly 120 comprising: a support base plate 121; and a pull-out top plate 122 slidably disposed on the support base plate 121 and connected to the support base plate 121 by a pin 124; an elastic element 1 is provided inside the support base plate 121. 23; The pull-out top plate 122 is elastically connected to the support bottom plate 121; After the battery pack 200 is placed into the insertion slot 110 and comes into contact with the pull-out top plate 122, the support bottom plate 121 is compressed to buffer the battery pack 200; When it is necessary to remove the battery pack 200, the pin 124 is released, and the pull-out top plate 122 is pulled to change the center of gravity of the battery pack 200, so that the support bottom plate 121 tilts in the direction of pulling out the battery pack 200, so as to facilitate the removal of the battery pack 200.

[0036] By setting an elastic element 123 in the support base plate 121 and cooperating with the structure of the pull-out top plate 122 elastically connected to the support base plate 121, rigid impact is converted into elastic buffer, effectively absorbing the energy of road bumps and vibrations, and preventing the battery pack 200 from loosening, the slot from deforming or falling off. At the same time, when the battery pack 200 is removed, the support base plate 121 is tilted by changing the center of gravity of the battery pack 200, eliminating the need to lift the battery pack 200, reducing the structural space required for battery replacement, enabling a compact battery layout and improving space utilization.

[0037] Please see Figure 2 and Figure 3 The supporting base plate 121 includes: a base plate body 1211, the top of which is provided with a groove 1212; the elastic element 123 is disposed in the groove 1212; a cover plate 1213 is disposed on the top of the groove 1212; the cover plate 1213 is elastically connected to the groove 1212 through the elastic element 123.

[0038] By using a cover plate 1213 to support the pull-out top plate 122, the pressure of the pull-out top plate 122 is evenly distributed onto the elastic element 123, thereby reducing the swaying of the pull-out top plate 122 during shock absorption. It should be noted that the cover plate 1213, as the contact interface with the pull-out top plate 122, has a polished surface to facilitate the pulling out and insertion of the pull-out top plate 122.

[0039] Specifically, the elastic element 123 includes: two sets of compression springs; the two sets of compression springs are respectively disposed on both sides of the groove 1212; the two sides of the cover plate 1213 are elastically connected to the groove 1212 through each corresponding set of compression springs.

[0040] It should be noted that, in order to ensure full contact between the cover plate 1213 and the pull-out top plate 122, thereby ensuring the effectiveness of the elastic connection, the height of the top surface of the cover plate 1213 is higher than the height of the top surface of the groove 1212.

[0041] To further improve the shock absorption performance of the supporting base plate 121, in a preferred embodiment, an elastic filling layer 1214 is provided in the groove 1212; the elastic filling layer 1214 is disposed between the cover plate 1213 and the base plate body 1211.

[0042] The secondary buffering effect of the elastic filling layer 1214 is further enhanced by adding an elastic spring buffer on top of the compression spring buffer, which further improves the shock absorption performance of the support base plate 121 and at the same time further reduces the sway amplitude of the battery pack 200.

[0043] Please continue reading. Figure 2 and Figure 3 The elastic filling layer 1214 has a water storage chamber; the water storage chamber stores coolant; the cover plate 1213 and the pull-out top plate 122 are both made of thermally conductive material; when the electric forklift is bumped, the battery pack 200 repeatedly compresses the support base plate 121 to accelerate the flow of coolant in the water storage chamber.

[0044] By setting a water storage cavity in the elastic filling layer 1214, the battery pack 200 is not only damped, but also cooled. At the same time, when the battery pack 200 is compressed against the support base plate 121, the flow of coolant in the water storage cavity can be accelerated, thereby improving the heat dissipation capacity of the battery pack 200.

[0045] Please continue reading. Figure 2 and Figure 3 The pull-out top plate 122 includes: a horizontal plate 1221; a pull-out plate 1222, which is perpendicular to the horizontal plate 1221 and fixedly connected to the horizontal plate 1221; the pull-out plate 1222 has an insertion hole 1222a; the supporting base plate 121 has a sliding hole at the fitting point of the insertion hole 1222a; the pin 124 passes through the insertion hole 1222a and the sliding hole in sequence and is fixed by a nut.

[0046] By setting the pull-out plate 1222, the flat plate is connected to the support base plate 121, preventing the battery pack 200 from falling out of the battery holder when it is inserted into the insertion slot 110. At the same time, the pin 124 is connected to the support base plate 121 in a sliding manner, so as not to affect the shock absorption of the battery pack 200, that is, not to affect the compression of the pull-out top plate 122 of the battery pack 200.

[0047] To further prevent the battery pack 200 from falling out of the insertion slot 110, in a preferred embodiment, a limiting plate 1223 extends upward from the top surface of the pull-out plate 1222; the limiting plate 1223 abuts against the side wall of the battery pack 200.

[0048] The battery pack 200 is positioned by the limiting plate 1223, allowing it to swing left and right within the insertion slot 110.

[0049] Please see Figure 1 This disclosure also provides a powered forklift, including: a forklift body; a battery rack for electric forklifts as described above, which is disposed on the chassis 300 of the forklift body; and a battery pack 200 inserted into the frame body 100.

[0050] This disclosure also provides a method for operating an electric forklift battery rack as described above. Please see Figure 4 When in use, the working method includes: S110: Insert the battery pack 200 into the insertion slot 110; S120: Connect the pull-out top plate 122 to the support base plate 121 via pin 124; S130: When the battery pack 200 vibrates, the support base plate 121 is compressed to cushion the battery pack 200. Please see Figure 5 When performing maintenance on the battery pack 200, the working method includes: S210: Release the limit of pin 124; S220: Pulling the top plate 122 by external force changes the center of the battery pack 200; S230: The support base plate is tilted and compressed along the direction in which the battery pack 200 is pulled out, so as to facilitate the removal of the battery pack 200.

[0051] In summary, this invention provides an electric forklift, a battery rack for an electric forklift, and a method for operating the same. The battery rack for an electric forklift includes: a frame body 100 with multiple insertion slots 110; a support assembly 120 is provided at the bottom of each insertion slot 110; the support assembly 120 includes: a support base plate 121; and a pull-out top plate 122, which is slidably disposed on the support base plate 121 and connected to the support base plate 121 via pins 124; the support base plate 121 contains... An elastic element 123 is provided; the pull-out top plate 122 is elastically connected to the support base plate 121; after the battery pack 200 is placed into the insertion slot 110 and contacts the pull-out top plate 122, the support base plate 121 is compressed to buffer the battery pack 200; when it is necessary to remove the battery pack 200, the pin 124 is released, the pull-out top plate 122 is pulled, the center of gravity of the battery pack 200 is changed, and the support base plate 121 is tilted in the direction of pulling out the battery pack 200 to facilitate the removal of the battery pack 200. By setting an elastic element 123 in the support base plate 121 and cooperating with the structure of the pull-out top plate 122 elastically connected to the support base plate 121, rigid impact is converted into elastic buffer, effectively absorbing the energy of road bumps and vibrations, and preventing the battery pack 200 from loosening, the slot from deforming or falling off. At the same time, when the battery pack 200 is removed, the support base plate 121 is tilted by changing the center of gravity of the battery pack 200, eliminating the need to lift the battery pack 200, reducing the structural space required for battery replacement, enabling a compact battery layout and improving space utilization.

[0052] In the description of the embodiments of the present invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in the present invention based on the specific circumstances.

[0053] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the invention. Furthermore, terms such as "first," "second," and other numerical terms used herein do not imply order or sequence unless expressly indicated herein. Therefore, without departing from the teachings of the exemplary embodiments, the first element, component, region, layer, or segment discussed above may be referred to as a second element, component, region, layer, or segment.

[0054] Spatially relative terms, such as “inside,” “outside,” “below,” “below,” “down,” “above,” “up,” etc., may be used herein to describe the relationship between one element or feature illustrated in the figures and another element or feature. In addition to the orientations depicted in the figures, spatially relative terms may be intended to cover different orientations of the device in use or operation. For example, if the device in the figure is flipped, an element described as “below” or “below” other elements or features would be oriented as “above” other elements or features. Thus, the example term “below” can cover both above and below orientations. The device may be oriented in other ways (rotated 90 degrees or in other orientations), and the spatially relative descriptors used herein are interpreted accordingly.

[0055] In the above discussion, unless otherwise stated, when used to describe numerical values, the terms “about,” “approximately,” “basically,” etc., indicate a change of + / - 10% in that value.

[0056] Based on the above-described preferred embodiments of the present invention, and through the foregoing description, those skilled in the art can make various changes and modifications without departing from the inventive concept. The technical scope of this invention is not limited to the contents of the specification, but must be determined according to the scope of the claims.

Claims

1. A battery rack for an electric fork lift truck, characterized in that include: The frame body (100) has multiple insertion slots (110); A support assembly (120) is provided at the bottom of the insertion slot (110). The support component (120) includes: Support base plate (121); A pull-out top plate (122) is slidably mounted on the supporting base plate (121) and connected to the supporting base plate (121) by a pin (124); An elastic element (123) is provided inside the supporting base plate (121); The pull-out top plate (122) is elastically connected to the supporting bottom plate (121); After the battery pack (200) is inserted into the insertion slot (110) and comes into contact with the pull-out top plate (122), the support base plate (121) is compressed to cushion the battery pack (200); When it is necessary to remove the battery pack (200), after releasing the limit of the pin (124), pull the pull-out top plate (122) to change the center of gravity of the battery pack (200) and make the support base plate (121) tilt in the direction of pulling out the battery pack (200) so that the battery pack (200) can be removed.

2. The battery rack for electric forklifts as described in claim 1, characterized in that, The supporting base plate (121) includes: The base plate body (1211) has a groove (1212) on its top. The elastic element (123) is disposed within the groove (1212); A cover plate (1213) is provided on the top of the groove (1212). The cover plate (1213) is elastically connected to the groove (1212) via an elastic element (123).

3. The battery rack for electric forklifts as described in claim 2, characterized in that, The elastic element (123) includes: Two sets of compression springs; Two sets of compression springs are respectively arranged on both sides of the groove (1212); The two sides of the cover plate (1213) are elastically connected to the groove (1212) by corresponding sets of compression springs.

4. The battery rack for electric forklifts as described in claim 2, characterized in that, An elastic filling layer (1214) is provided inside the groove (1212). The elastic filling layer (1214) is disposed between the cover plate (1213) and the base plate body (1211).

5. The battery rack for electric forklifts as described in claim 4, characterized in that, A water storage cavity is provided inside the elastic filling layer (1214); The water storage chamber contains coolant; Both the cover plate (1213) and the pull-out top plate (122) are made of thermally conductive materials; When the electric forklift experiences a bump, the battery pack (200) repeatedly compresses the support base plate (121) to accelerate the flow of coolant in the water storage chamber.

6. The battery rack for electric forklifts as described in claim 1, characterized in that, The pull-out top panel (122) includes: Horizontal plate (1221); A pull-out panel (1222) is arranged perpendicularly to the horizontal plate (1221) and is fixedly connected to the horizontal plate (1221); The pull-out plate (1222) is provided with a socket (1222a); A sliding hole is provided at the fitting point between the support base plate (121) and the insertion hole (1222a); The pin (124) passes through the insertion hole (1222a) and the sliding hole in sequence, and is then fixed by a nut.

7. The battery rack for electric forklifts as described in claim 6, characterized in that, The top surface of the pull-out plate (1222) extends upward to form a limiting plate (1223). The limiting plate (1223) abuts against the side wall of the battery pack (200).

8. A power fork truck characterized by, include: Forklift body; The battery rack for an electric forklift as described in claim 1 is mounted on the chassis of the forklift body; A battery pack (200) is inserted into the frame body (100).

9. A method for operating a battery rack for an electric forklift as described in claim 1, characterized in that, When in use, the working method includes: Place the battery pack (200) into the insertion slot (110); The pull-out top plate (122) is connected to the support base plate (121) by means of pins (124); When the battery pack (200) vibrates, the support base plate (121) is compressed to cushion the battery pack (200); When performing maintenance on the battery pack (200), the working method includes: Release the limit of pin (124); By pulling the top plate (122) with external force, the center of the battery pack (200) is changed; The support base plate is tilted and compressed along the direction in which the battery pack (200) is pulled out, so as to facilitate the removal of the battery pack (200).

10. The method of operating the battery rack for an electric forklift as described in claim 9, characterized in that, The supporting base plate (121) includes: The base plate body (1211) has a groove (1212) on its top. The elastic element (123) is disposed within the groove (1212); A cover plate (1213) is provided on the top of the groove (1212). The cover plate (1213) is elastically connected to the groove (1212) via an elastic element (123).

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