Electric fork truck with simple battery replacement structure

Abstract

This utility model relates to the field of new energy forklift technology, specifically to an electric forklift with a simplified battery swapping structure. It includes: a battery compartment housed inside the driver's seat, the battery compartment having an open end; and a battery pack for battery swapping, the battery pack being housed inside the battery compartment, with several fork sleeves arranged parallel to each other at the bottom of the battery pack to allow fork sleeves to mate with external forks. This utility model simplifies the battery swapping structure of the electric forklift by providing a battery compartment with an open end for holding the battery pack, allowing the battery pack to be moved in or out of the battery compartment through the open end; furthermore, the fork sleeves fixedly connected to the bottom of the battery pack can cooperate with external forks, enabling the operator to easily transport the battery pack for battery swapping using an external forklift. This reduces the initial infrastructure investment cost by replacing the battery swapping facility with a forklift.

Description

Technical Field

[0001] This utility model relates to the field of new energy forklift technology, specifically to an electric forklift with a simple battery swapping structure. Background Technology

[0002] With tightening environmental policies and the popularization of green logistics concepts, electric forklifts are gradually replacing traditional internal combustion forklifts, becoming the main equipment for material handling in warehousing, logistics, and manufacturing. As the energy source for electric forklifts, the range and recharging efficiency of the power battery are key factors determining the continuity of forklift operations and user productivity. Currently, electric forklifts have two energy replenishment modes: charging and battery swapping. Battery swapping, by directly replacing a depleted battery pack with a fully charged one, achieves rapid energy replenishment, greatly improving the operational efficiency of electric forklifts.

[0003] Existing battery swapping electric forklifts have a single battery swapping structure, which can only be adapted to battery packs of specific specifications and shapes. This single battery swapping method often requires dedicated and high-cost battery swapping equipment (such as large lifting robotic arms and precision side-pushing platforms). For small and medium-sized warehouses or users who wish to gradually introduce the battery swapping model, the initial infrastructure investment is too large and the threshold is too high. Utility Model Content

[0004] This utility model addresses the problem of excessive initial infrastructure investment in existing battery-swapping electric forklifts by providing an electric forklift with a simplified battery-swapping structure. The specific technical solution is as follows: An electric forklift with a simple battery swapping structure is disclosed. The electric forklift includes a driver's base, which includes: a battery compartment disposed inside the driver's base, the battery compartment forming an open end; and a battery pack for battery swapping, the battery pack being disposed inside the battery compartment, with a plurality of fork sleeves arranged parallel to each other at the bottom of the battery pack so that the fork sleeves can be matched with external forks.

[0005] Preferably, it also includes a roller disposed at the bottom of the fork sleeve, the side of the roller being tangent to the bottom plate of the battery compartment, and the roller being able to drive the fork sleeve and the battery pack to move relative to the battery compartment.

[0006] Preferably, the open end is detachably connected to the locking member, and the locking member forms a clamping mechanism; when the battery pack is placed in the battery compartment, the clamping mechanism can lock the position of the battery pack relative to the battery compartment; when the battery pack needs to be replaced, the clamping mechanism separates from the battery pack, and the locking member separates from the battery compartment, so that the battery pack can be removed from the battery compartment.

[0007] Preferably, the locking element includes: a stop bar embedded at both ends of the battery compartment, the stop bar being able to restrict the movement of the battery pack from the open end; and a plurality of bolts connected to the stop bar, the bolts being able to rotate relative to the stop bar to move closer to or further away from the battery pack.

[0008] Preferably, it further includes: a side door connected to the battery compartment, the side door rotating relative to the opening end to close or open the opening end; a charging interface formed in the driver's seat, the side door forming a through hole that allows the charging interface to be displayed so that external power can be connected to the charging interface through the through hole.

[0009] Preferably, the electric forklift includes an electronic control unit and a quick-connect assembly, which connects the electronic control unit and the battery pack to supply power to the electrical components of the electric forklift.

[0010] As can be seen from the above technical solution, this utility model has the following beneficial effects: This invention features a battery compartment with an open end for storing battery packs, allowing the battery packs to be moved in or out of the compartment through the open end. Furthermore, a fork sleeve fixedly connected to the bottom of the battery pack can cooperate with external forks, enabling operators to easily move the battery packs for battery swapping using an external forklift. This simplifies the battery swapping structure of electric forklifts, allowing the battery swapping facilities to be replaced with forklifts, thus reducing initial infrastructure investment costs. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the structure of the machine cover opened according to an embodiment of the present invention; Figure 2 for Figure 1 Enlarged view of the structure at point A in the image; Figure 3 for Figure 1 Enlarged view of the structure at point B in the image; Figure 4 This is a schematic diagram of the closing structure according to an embodiment of the present utility model.

[0012] In the diagram: 1. Driver's base; 2. Battery compartment; 3. Side door; 4. Charging port; 5. Battery pack; 6. Locking element; 61. Stop bar; 62. Bolt; 7. Fork sleeve; 8. Roller; 9. Quick-connect fitting; 10. Engine cover. Detailed Implementation

[0013] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0014] In the description of the embodiments of this utility model, it should be noted that the terms "inner", "outer", "upper", etc., indicate the orientation or positional relationship 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 when in use. They are only for the convenience of describing this utility model 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. Therefore, they should not be construed as limitations on this utility model.

[0015] like Figure 1 and Figure 2 As shown, this embodiment is an electric forklift with a simple battery swapping structure. The electric forklift includes a driver's base 1 and a cover 10. The cover 10 is rotatably connected to the driver's base 1. The driver's base 1 is used for the cover 10, and the cover 10 is used to close the internal cavity of the driver's base 1 to support the driver.

[0016] Secondly, the electric forklift includes: a battery compartment 2 located inside the driver's base 1, the battery compartment 2 forming an open end; and a battery pack 5 for battery swapping, the battery pack 5 located inside the battery compartment 2, with several fork sleeves 7 arranged parallel to each other at the bottom of the battery pack 5 so that the fork sleeves 7 can match the forks of the outside.

[0017] Specifically, the battery compartment 2 is formed inside the cavity of the driver's seat 1. It is closed on all sides, but an opening is formed on the side of the driver's seat 1, allowing the battery pack 5 to enter the battery compartment 2 through the opening, or the battery pack 5 to be released from its fixed structure and moved out through the opening for battery swapping. Secondly, the battery pack 5 includes a battery casing and a power battery. The battery swapping process only replaces the battery pack 5. The bottom of the battery casing is fixedly connected to two parallel fork sleeves 7 by welding, allowing external forklifts to insert into the fork sleeves 7 to move the battery pack 5. This simplifies the battery swapping facilities for the battery pack 5, improves the battery swapping efficiency of the battery pack 5, and reduces the initial investment in battery swapping infrastructure.

[0018] Secondly, the spacing between the fork sleeves 7 is the same as that between conventional forks. Welding multiple fork sleeves 7 to the bottom of the battery housing can improve the adaptability to forks with different spacings. A handle is connected to one end of the battery pack 5 near the opening, and the operator can move the battery pack 5 out of the battery compartment 2 through the handle.

[0019] Furthermore, it also includes a roller 8 located at the bottom of the fork sleeve 7. The side of the roller 8 is tangent to the bottom plate of the battery compartment 2. The roller 8 can drive the fork sleeve 7 and the battery pack 5 to move relative to the battery compartment 2.

[0020] Specifically, the bottom of each fork sleeve 7 is connected to multiple rollers 8 via brackets, so that the rollers 8 can stably support the individual fork sleeve 7; secondly, during the process of the forks inserting into the fork sleeve 7 to move the battery pack 5 out of the battery compartment 2, the bottom rollers 8 roll relative to the bottom plate of the battery compartment 2 to avoid friction between the fork sleeve 7 and the battery compartment 2, and at the same time improve the smoothness of moving the battery pack 5 out of or into the battery compartment 2, thereby reducing the resistance of the battery pack 5 moving relative to the battery compartment 2 and ensuring battery swapping efficiency.

[0021] Furthermore, the open end is detachably connected to the locking member 6, and the locking member 6 forms a clamping mechanism; when the battery pack 5 is placed in the battery compartment 2, the clamping mechanism can lock the position of the battery pack 5 relative to the battery compartment 2; when the battery pack 5 needs to be replaced, the clamping mechanism separates from the battery pack 5, and the locking member 6 separates from the battery compartment 2, so that the battery pack 5 can be removed from the battery compartment 2.

[0022] Specifically, the locking member 6 is detachably connected to the battery compartment 2, and the connection position is close to the opening end. The clamping mechanism of the locking member 6 can move or rotate relative to the opening end. It can be a rotating clamping mechanism or a moving clamping mechanism, so that it can apply pressure to the battery pack 5 pointing towards the battery compartment 2, thereby fixing the position of the battery pack 5 relative to the battery compartment 2. When the battery pack 5 is depleted and needs to be replaced, the clamping mechanism releases the restriction on the opening end and the battery pack 5, so that the external forks can be inserted into the fork sleeve 7, thereby moving the battery pack 5 through the opening end to remove it from the battery compartment 2.

[0023] Furthermore, the locking member 6 includes: a retaining strip 61 with both ends embedded in the battery compartment 2, the retaining strip 61 being able to restrict the movement of the battery pack 5 from the open end; and a plurality of bolts 62 connected to the retaining strip 61, the bolts 62 being able to rotate relative to the retaining strip 61 to move closer to or further away from the battery pack 5.

[0024] Specifically, mounting holes for placing baffles 61 are formed on opposite sides of the battery compartment 2, and these mounting holes are close to the open end. When both ends of the baffles 61 are inserted into the mounting holes, the baffles 61 can divide the open end into two parts, thereby preventing the battery pack 5 from moving out of the battery compartment 2, but it cannot fix the battery pack 5 relative to the battery compartment 2. Secondly, the baffles 61 are threadedly connected to two bolts 62. The bolts 62 rotate clockwise relative to the baffles 61, and their ends near the battery pack 5 gradually approach the battery pack 5 until they squeeze the battery pack 5, so that both ends of the baffles 61 are fixed relative to the battery compartment 2, thereby fixing the battery pack 5 relative to the battery compartment 2 and preventing the battery pack 5 from shifting during forklift operation.

[0025] Secondly, when the battery pack 5 is depleted and needs to be replaced, the bolt 62 rotates counterclockwise relative to the stop bar 61, and the end of the bolt 62 that is close to the battery pack 5 gradually moves away from the battery pack 5. The two ends of the stop bar 61 can separate from the mounting holes of the battery compartment 2, so that there is no obstruction mechanism at the opening end, and the battery pack 5 can be moved out of the battery compartment 2 through the opening end.

[0026] like Figure 3 and Figure 4 As shown, this embodiment also includes: a side door 3 connected to the battery compartment 2, the side door 3 rotating relative to the opening end to close or open the opening end; a charging interface 4 formed on the driver's seat 1, the side door 3 forming a through hole that allows the charging interface 4 to be displayed, so that external power can be connected to the charging interface 4 through the through hole.

[0027] Specifically, the side door 3 is rotatably connected to the driver's seat 1. When the side door 3 is fully in contact with the driver's seat 1, it is in the closed state. At this time, the side door 3 is connected to a door lock that cooperates with the battery compartment 2. When the door lock is closed, the battery compartment 2 is in the closed state, ensuring the safety of the battery pack 5 during the forklift's operation and preventing it from being scratched. When the door lock is opened, the side door 3 rotates away from the driver's seat 1, and it is in the open state. The battery compartment 2 is in the open state, and the battery pack 5 is moved out of the battery compartment 2 for battery swapping. Secondly, the charging interface 4 is a conventional design in this field. When the forklift is charging the whole vehicle, the side door 3 is in the closed state. The external power cable passes through the through hole of the side door 3 and connects to the charging interface 4, thereby charging the battery pack 5.

[0028] Furthermore, the electric forklift includes an electronic control unit and a quick-connect plug 9, which connects the electronic control unit and the battery pack 5 to power the electrical components of the electric forklift.

[0029] Specifically, the electronic control unit and the quick-connect plug 9 are conventional technologies in the field. When the battery pack 5 is placed into the battery compartment 2 and fixed, the quick-connect plug 9 connects the battery pack 5 and the electronic control unit. When the battery pack 5 is low on power and needs to be replaced, the quick-connect plug 9 disconnects the battery pack 5 and the electronic control unit, simplifying the connection structure between the battery pack 5 and the electronic control unit in this embodiment, and thus simplifying the battery replacement mechanism in this embodiment.

[0030] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

[0031] The technologies, shapes, and structures not described in detail in this utility model are all known technologies.

Claims

1. An electric forklift truck with a simple battery replacement structure, the electric forklift truck comprising a driving base (1), characterized in that, The electric forklift includes: A battery compartment (2) is disposed inside the driving base (1), the battery compartment (2) forming an open end; and A battery pack (5) for battery swapping is provided inside the battery compartment (2). Several fork sleeves (7) are arranged parallel to each other at the bottom of the battery pack (5) so that the fork sleeves (7) can match the forks of the outside.

2. The electric forklift according to claim 1, characterized in that, It also includes a roller (8) disposed at the bottom of the fork sleeve (7), the side of the roller (8) being tangent to the bottom plate of the battery compartment (2), and the roller (8) being able to drive the fork sleeve (7) and the battery pack (5) to move relative to the battery compartment (2).

3. The electric fork truck of claim 1, wherein: The open end is detachably connected to the locking member (6), and the locking member (6) forms a clamping mechanism; When the battery pack (5) is placed in the battery compartment (2), the clamping mechanism can lock the position of the battery pack (5) relative to the battery compartment (2); When the battery pack (5) needs to be replaced, the clamping mechanism separates from the battery pack (5) and the locking member (6) separates from the battery compartment (2) so that the battery pack (5) can be removed from the battery compartment (2).

4. The electric fork truck of claim 3, wherein: The locking element (6) includes: A retaining strip (61) is embedded at both ends of the battery compartment (2), the retaining strip (61) restricting the movement of the battery pack (5) from the opening end; and A plurality of bolts (62) connected to the baffle (61), the bolts (62) being rotatable relative to the baffle (61) to move closer to or further away from the battery pack (5).

5. The electric fork truck of claim 1, wherein, Also includes: A side door (3) connected to the battery compartment (2) rotates relative to the opening end to close or open the opening end; A charging interface (4) is formed on the driving base (1), and the side door (3) forms a through hole that allows the charging interface (4) to be exposed so that an external power source can be connected to the charging interface (4) through the through hole.

6. The electric fork truck of claim 1, wherein, The electric forklift includes an electronic control unit and a quick-connect plug (9), which connects the electronic control unit and the battery pack (5) to supply power to the electrical components of the electric forklift.

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