Forklift battery mounting structure

Abstract

The utility model relates to a forklift battery mounting structure, which comprises a battery bracket, a plurality of battery mounting positions arranged on the battery bracket, and roller assemblies arranged at the bottoms of the battery mounting positions. The electric appliance box is arranged on the rear side of the battery bracket, the electric appliance box is connected into an electric circuit for the forklift, and a plurality of first battery interfaces are formed in the electric appliance box corresponding to the battery mounting positions; the plurality of battery boxes are in one-to-one correspondence with the battery mounting positions, and second battery interfaces matched with the first battery interfaces in an inserting manner are formed in the battery boxes; after the battery box is pushed backwards in place, the rear end of the battery box abuts against the positioning plate, and the second battery interface backwards extends out of the positioning plate to be connected with the corresponding first battery interface. According to the scheme, the battery box can be easily replaced, the quick insertion function of the battery box is realized, the battery box can be prevented from being excessively pushed backwards in a quick insertion structure used by the battery box, and a battery interface is prevented from being damaged.

Description

TECHNICAL FIELD

[0001] The utility model relates to lithium battery fork truck technical field especially relates to a fork truck battery mounting structure. BACKGROUND

[0002] The battery compartment of side opening is a common setting form of current lithium battery fork truck, for the battery compartment of this form, usually need to help lithium battery to be loaded and unloaded by fork truck etc., such as the public number for CN211971669U discloses a side shovel type battery balance heavy fork truck frame, need to help fork truck to take out the battery box from the frame by the fork. Since need to help lithium battery to be carried by fork truck etc., inconvenient operation and usually need larger operation site.

[0003] In addition, the fork truck lithium battery in the prior art, after installing the battery to the battery compartment, still need to connect the lithium battery to connect the battery to the power supply. For the scheme that only a single lithium battery is arranged in the lithium battery compartment of the fork truck, only once the operation process is limited. But involve for example the scheme of multiple quick-change batteries in the public number for CN118026056A, need to carry out multiple plug-in when need to replace the battery, the operation process is complex. Further, the prior art also proposes a scheme that the plug-in connector matched with the battery box on the battery compartment support is used to automatically complete the battery connection after the battery box is installed in place. But in actual use, since the battery weight is large, even the quick-change battery with relatively small volume and weight has dozens of kilograms, therefore, in the process of battery loading, because of one or more factors such as large thrust, installation excess, slight deviation of installation angle, it is easy to damage the plug-in connector. SUMMARY

[0004] In order to solve the above problems, the purpose of the utility model is to provide a fork truck battery mounting structure, which can realize quick replacement of lithium battery without the help of fork truck and other tools.

[0005] A fork truck battery mounting structure, comprising:

[0006] At least a battery compartment of side opening;

[0007] A battery bracket is arranged in the battery compartment, the battery bracket is divided into a plurality of battery mounting positions, the bottom of the battery mounting position is provided with a roller assembly, the side of the battery mounting position is provided with a first guide assembly for moving and guiding the battery, and the rear side of the battery mounting position is provided with a positioning plate, the positioning plate cooperates with the battery box to limit the rearward pushing distance of the battery box;

[0008] An electric appliance box is arranged at the rear side of the battery bracket, the electric appliance box is connected to the power circuit of the fork truck, a plurality of first battery interfaces are arranged on the electric appliance box corresponding to the battery mounting positions, and the first battery interfaces are located directly behind the battery mounting positions;

[0009] a plurality of battery boxes corresponding to the battery installation positions, the battery boxes being provided with second battery interfaces for plugging with the first battery interfaces, the second battery interfaces being aligned with the corresponding first battery interfaces after the battery boxes are installed into the battery installation positions; and the second battery interfaces being connected with the corresponding first battery interfaces after the battery boxes are pushed into position.

[0010] Preferably, one of the first battery interface and the second battery interface is a plug, and the other is a socket; and the plug is a floating plug, which includes a first buffer member that is flexible in the direction of plugging.

[0011] Preferably, the first buffer member is a spring, and the floating plug includes a plug member and a base, and the plug member and the base are flexibly connected by the spring.

[0012] Preferably, the positioning plate is provided with a positioning hole, and the rear end of the battery box is provided with a positioning member corresponding to the positioning hole; and the positioning member is inserted into the positioning hole and is elastically deformed by the positioning hole after the battery box is installed into position.

[0013] Preferably, the positioning member is a rubber block, and the radial dimension of the positioning member gradually decreases from front to back, and the maximum radial dimension of the positioning member is greater than the hole diameter of the positioning hole.

[0014] Preferably, the battery installation position is provided with a locking device for locking the battery box thereon.

[0015] Preferably, the locking device includes a positioning pin provided at the front end of the battery box and a pin hole provided at the battery bracket, and the positioning pin is a spring-loaded pivot pin, the pivot pin is locked with the battery bracket at a first position, and the pivot pin is moved to a second position to release the lock with the battery bracket, and the spring is compressed when the pivot pin is moved from the first position to the second position.

[0016] Preferably, the front end of the battery installation position is provided with a second guide block, and the lower side of the rear end of the battery box is formed with a chamfer or an inclined surface that is guided by the second guide block.

[0017] Preferably, the battery bracket is fixed with an upper limiting member, and the upper limiting member provides an upper limit for the battery box on the battery bracket.

[0018] Preferably, the upper end of the battery box is provided with a handle near the front end and the rear end, respectively, and the handle can be flipped to be close to the upper end of the battery box.

[0019] Because of the above-mentioned solution, this utility model makes it easier to move the battery by means of the roller structure at the bottom of the battery bracket when installing or removing the battery. In the preferred embodiment, multiple battery installation positions can be divided on the battery bracket, thereby reducing the weight of a single battery box and allowing for manual battery replacement without the need for tools. By placing the electrical box behind the battery installation position, the battery box can be electrically connected to the electrical box after it is installed in the battery installation position, enabling a quick-connect function without the need for additional operations to connect the battery box to the forklift's working circuit. The positioning plate at the rear of the battery installation position cooperates with the battery box to prevent the battery box from being pushed backward excessively, thus avoiding damage to the battery interface. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of this application;

[0021] Figure 2 This is a schematic diagram of the battery compartment installation.

[0022] Figure 3 This is a schematic diagram showing the installation relationship between the battery holder, battery box, and electrical box.

[0023] Figure 4 This is a schematic diagram of the battery tray structure;

[0024] Figure 5 This is a schematic diagram of the battery box structure;

[0025] Figure 6 This is a schematic diagram of the electrical box structure;

[0026] Figure 7 This is a schematic diagram of a floating joint structure;

[0027] Figure 8 A schematic diagram showing the fit between the positioning hole and the second buffer component;

[0028] Figure 9 for Figure 3 Enlarged view of the locking device in the image;

[0029] Figure 10 This is a diagram showing the positional relationship between the locating pin and the spring in the locking device.

[0030] Figure label:

[0031] Battery compartment 1, battery bracket 11, roller assembly 111, first guide assembly 112, positioning plate 113, positioning hole 1131, second guide block 114, side door 12, top cover 13, upper limit plate 14.

[0032] Battery box 2, second battery interface 21, positioning component 22, handle 23.

[0033] Electrical box 3, first battery interface 31,

[0034] first buffer 41,

[0035] locking device 5, positioning pin 51, pin hole 52, spring 53. DETAILED DESCRIPTION

[0036] The embodiment of the utility model is described below in detail. The embodiment takes the side of the battery compartment with an opening as the front side, and the side opposite to the side with the opening as the rear side for orientation description.

[0037] The embodiment relates to a forklift battery mounting structure, which comprises at least a battery compartment with an opening on the side, so that the battery can be disassembled in a side-pulling manner. A side door 12 for closing the side opening is mounted on one side of the side opening. Optionally, as shown in the figure, an upper opening is also provided in the battery compartment, so as to assemble and disassemble and overhaul components such as the electric appliance box 3 installed in the battery compartment, and a flip-open upper cover plate 13 is provided at the upper opening. Figures 1-2

[0038] A battery bracket 11 is provided in the battery compartment, and the battery bracket 11 supports the battery box 2. As shown in the figure, Figure 3 4 The battery bracket 11 is divided into a plurality of battery mounting positions, and one battery box 2 is mounted on each battery mounting position. In the embodiment, a plurality of battery mounting positions are preferably provided on the battery bracket 11, so as to reduce the size and weight of the single battery box 2, facilitate carrying, and realize the carrying of the battery box 2 without the aid of tools, simple operation, and small operation site limitation for battery box 2 replacement.

[0039] A roller assembly 111 is provided at the bottom of the battery mounting position, so that the battery box 2 can be rolled and conveyed by relying on the roller assembly 111 when entering and exiting the battery compartment, and the battery box 2 can be more easily moved on the battery bracket 11. A first guide assembly 112 for moving and guiding the battery is provided on the side of the battery mounting position, the movement of the battery box 2 in the battery mounting position is guided by the first guide assembly 112, and the position deviation of the battery box 2 during installation is prevented. A positioning plate 113 is provided at the rear side of the battery mounting position, which cooperates with the battery box 2 to limit the advancing distance of the battery box 2, and the positioning plate 113 can prevent the battery box 2 from advancing excessively, especially in combination with the quick insertion mode of the battery box 2 described below, the positioning plate 113 limits the advancing distance of the battery box 2, and can prevent the damage of the electric plug.

[0040] ​​In the embodiment, the first guiding assembly 112 is used to guide the pushing direction of the battery box 2. Specifically, the first guiding assembly 112 includes left and right side plates arranged at the battery mounting position. According to the gap between the left and right side plates and the side edges of the battery box 2, a guiding rubber strip can be arranged on the left side plate and / or the right side plate. In the embodiment, the left and right side edges are designed to be very narrow, thereby playing a function of limiting the sliding direction of the battery box 2. In an alternative embodiment, the guiding rubber strip is a long strip arranged in the front-rear direction. In order to facilitate the entry and exit of the battery box 2, the front and rear end faces of the guiding rubber strip are designed to be inclined. Preferably, a second guiding block 114 is arranged at the front end of the battery mounting position, and the lower side of the rear end of the battery box 2 is formed as an inclined surface or a chamfered surface for guiding cooperation with the second guiding block 114, so as to facilitate the pushing of the battery box 2 into the battery mounting position.

[0041] The rear side of the battery bracket 11 is provided with an electric appliance box 3. As shown in the figure, the electric appliance box 3 is connected to the power circuit of the forklift. As shown in the figure, the electric appliance box 3 is connected to the power circuit of the forklift. Figure 6 As shown in the figure, the electric appliance box 3 is connected to the power circuit of the forklift.

[0042] A plurality of first battery interfaces 31 are arranged on the electric appliance box 3 corresponding to the battery mounting position. The first battery interfaces 31 are located directly behind the battery mounting position. On the one hand, the electric appliance box 3 can be connected to a plurality of battery boxes 2, so that the plurality of battery boxes 2 are connected to the power circuit of the forklift to supply power to the forklift. On the other hand, the electric appliance box 3 is located at the rear side in the mounting direction of the battery box 2. The battery box 2 has a second battery interface 21 for plug-in cooperation with the first battery interface 31. After the battery box 2 is mounted into position from front to back, the rear end of the battery box 2 abuts against the positioning plate 113, and the second battery interface 21 extends out of the positioning plate 113 and is connected to the corresponding first battery interface 31. According to the above arrangement, after the battery box 2 is mounted into position from front to back, the battery box 2 can be connected to the power circuit of the forklift without additional circuit connection operation. When the battery box 2 needs to be replaced, the electrical plug connector connected to the power circuit of the forklift does not need to be disconnected in advance. The battery box 2 can be directly removed from the battery compartment to simultaneously release the connection on the circuit. Through the above method, the battery box 2 can be quickly plugged in. In the embodiment in which a plurality of battery mounting positions are arranged on the battery bracket 11, the plurality of battery boxes 2 are connected to the same electric appliance box 3. The electric appliance box 3 is provided with positive and negative interfaces connected to the controller of the forklift, so that the plurality of battery boxes 2 can be connected to the power circuit of the forklift through the electric appliance box 3.

[0043] By arranging the first guiding assembly 112, the first battery interface 31 and the second battery interface 21 can be aligned when the battery box 2 is mounted. The positioning plate 113 is further arranged to prevent the battery box 2 from being pushed too much and damaging the battery interface. Further, Figure 8As shown, the positioning plate is provided with a positioning hole 1131, and the battery box 2 is provided with a positioning member 22 corresponding to the positioning hole 1131 at the rear end. After the battery box 2 is installed to the position, the rear end of the positioning member 22 penetrates through the positioning hole. The positioning member 22 is elastically deformed during the installation process and has a tendency to return to the initial state. Specifically, the positioning member is inserted into the positioning hole and is elastically deformed by being pressed by the positioning hole, and has a tendency to return to the initial state. The positioning hole 1131 and the positioning member 22 are positioned and matched, which on the one hand helps the first battery interface 31 and the second battery interface 21 to be aligned. During the installation of the battery box 2, the positioning member 22 first penetrates through the positioning hole 1131, and during the continuous advancement of the battery box 2, the restoring force of the elastically deformed positioning member 22 gradually increases, that is, the pushing resistance gradually increases. The obvious resistance is fed back to the installer to prevent the damage of the interface caused by excessive force during the insertion of the first battery interface 31 and the second battery interface 21. On the other hand, the positioning member and the positioning hole are positioned and connected in the above-mentioned manner, which can avoid the damage of the plug-in head of the battery box caused by the position deviation of the battery box due to the shaking of the vehicle during use. In a preferred embodiment, the positioning member 22 is a rubber block, the radial dimension of the positioning member 22 gradually decreases from front to back, and the maximum radial dimension is greater than the hole diameter of the positioning hole 1131. In this way, before the first battery interface 31 and the second battery interface 21 are inserted, the rubber block first enters the positioning hole 1131. During the continuous advancement of the battery box 2, the radial dimension of the positioning member 22 gradually increases when it enters the positioning hole 1131, and the positioning member 22 is pressed by the positioning hole 1131. The difficulty of advancement gradually increases, which can ensure that the first battery interface 31 and the second battery interface 21 are slowly inserted, and the structure is simple. Therefore, the positioning member 22 and the positioning hole 1131 are matched to realize the functions of positioning and calibration and limiting the position of the battery box 2.

[0044] As a further preferred, one of the first battery interface 31 and the second battery interface 21 is a plug-in head, and the other is a plug-in interface; the plug-in head is a floating plug-in head, which includes a first buffer member 41 that can stretch and contract in the direction of the plug-in interface. During the engagement of the first battery interface 31 and the second battery interface 21, the first buffer member 41 works and is compressed. When the compression force of the first buffer member 41 reaches the assembly requirement of the male and female heads, the plug-in is completed.

[0045] In this embodiment, the battery mounting position is provided with a locking device 5 for locking the battery box 2 thereon. After the battery box 2 is installed to the position on the battery mounting position, the position of the battery box 2 is locked by the locking device 5 to prevent the position deviation after the installation is completed. As shown, Figure 7 As shown, in this embodiment

[0046] The locking device 5 in the battery box 2 comprises a positioning pin 51 arranged at the front end of the battery box 2 and a pin hole 52 arranged at the battery bracket 11, the positioning pin 51 is a pivot plug with a spring 53, the pivot plug is locked with the battery bracket 11 in a first position, the pivot plug is moved to a second position to release the lock with the battery bracket 11, the spring 53 is compressed when the pivot plug is moved from the first position to the second position. The positioning pin 51 is designed as a pivot plug structure with a spring 53, when pushed to a given position, the plug can be smoothly ejected to complete the fixation of the battery box 2, if the position is not accurate, at this time, the battery box 2 is slightly pushed forward and backward, the fixed plug will automatically slide into the designed side plate pin hole 52.

[0047] Further, the battery bracket 11 is provided with an upper limiting plate 14, the upper part of the upper limiting plate 14 is located above the battery box 2 mounted on the battery bracket 11, which can prevent the battery box 2 from falling due to vehicle shaking during vehicle driving.

[0048] In order to facilitate the movement of the battery box 2, handles 23 are arranged at the upper end of the battery box 2 near the front and rear ends respectively, the handles 23 can be flipped to be close to the upper end of the battery box 2. By arranging the handles 23 at the corresponding positions, the battery box 2 can be moved through the handles 23 at the corresponding positions when the battery box 2 is installed or removed, which is convenient for force application. The handles 23 are arranged in a flip type, which reduces the occupied space of the battery box 2 in the height direction of the battery compartment.

[0049] Although the embodiments of the utility model have been shown and described, those skilled in the art can understand that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and purposes of the utility model, the scope of the utility model is defined by the claims and its equivalents.

Claims

1. A forklift battery mounting structure, characterized in that, include: At least a battery compartment with an opening on the side; A battery tray is installed inside the battery compartment. The battery tray is divided into several battery mounting positions. A roller assembly is provided at the bottom of the battery mounting position. A first guide assembly for moving and guiding the battery box is provided on the side of the battery mounting position. A positioning plate is provided at the rear of the battery mounting position. The positioning plate cooperates with the battery box to limit the rearward movement distance of the battery box. An electrical box is located on the rear side of the battery tray. The electrical box is connected to the power circuit of the forklift. The electrical box has several first battery interfaces corresponding to the battery mounting position. The first battery interfaces are located directly behind the battery mounting position. A plurality of battery boxes are provided, each corresponding to a battery mounting position. Each battery box is provided with a second battery interface that is plugged into and cooperates with the first battery interface. After the battery box is installed in the battery mounting position, the second battery interface on it is aligned with the corresponding first battery interface. After the battery box is pushed back into place, the rear end of the battery box abuts against the positioning plate and the second battery interface extends backward out of the positioning plate and connects with the corresponding first battery interface.

2. The forklift battery mounting structure according to claim 1, characterized in that, One of the first battery interface and the second battery interface is a plug, and the other is a connector; the plug is a floating connector, which includes a first buffer that extends and retracts in the direction of insertion with the connector.

3. The forklift battery mounting structure according to claim 2, characterized in that, The first buffer is a spring, and the floating joint includes a plug and a base, with the plug and the base flexibly connected by the spring.

4. A forklift battery mounting structure according to claim 1 or 2, characterized in that, The plate is provided with positioning holes, and the rear end of the battery box is provided with positioning components corresponding to the positioning holes. After the battery box is installed in the rear, the positioning components are inserted into the positioning holes and are squeezed by the positioning holes to produce elastic deformation.

5. A forklift battery mounting structure according to claim 4, characterized in that, The positioning element is a rubber block, and its radial dimension gradually decreases from front to back, with its maximum radial dimension being greater than the diameter of the positioning hole.

6. The forklift battery mounting structure according to claim 1, characterized in that, The battery mounting position is equipped with a locking device for locking the battery compartment thereon.

7. A forklift battery mounting structure according to claim 6, characterized in that, The locking device includes a positioning pin located at the front end of the battery box and a pin hole located in the battery tray. The positioning pin is a spring-loaded pivot pin. The pivot pin is locked to the battery tray in a first position. Moving the pivot pin to a second position releases the lock from the battery tray. When moving from the first position to the second position, the spring is compressed.

8. A forklift battery mounting structure according to claim 1, characterized in that, A second guide block is provided at the front end of the battery mounting position, and a chamfer or bevel is formed on the lower side of the rear end of the battery box to guide and cooperate with the second guide block.

9. A forklift battery mounting structure according to claim 1, characterized in that, The battery tray is divided into multiple battery mounting positions.

10. A forklift battery mounting structure according to claim 1, characterized in that, The battery box has handles near the front and rear ends at the top, and the handles can be flipped to fit snugly against the top of the battery box.

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