Electric forklift lithium battery structure for rental industry

Abstract

The utility model discloses an electric forklift lithium battery structure for the lease industry, which comprises a lithium battery box, the interior of the lithium battery box is divided into a counterweight cavity, a side counterweight cavity and a battery cabin, and a battery module is fixedly arranged in the battery cabin through a pressing strip; a bearing plate is fixed on the pressing strip, a buzzer, a relay and a battery management system are fixed on the bearing plate, and the positioning module is integrated in the battery management system. According to the utility model, the lithium battery box structure is made into different corresponding areas, so that the balance weight of the whole vehicle and the battery module are integrated, the separation of the whole vehicle and the battery in the forklift leasing industry is met, and the transportation of the frame is facilitated; the positioning module and the buzzer are additionally arranged on the battery management system, the operation range of the rented forklift is calibrated through the battery management system and the background of the positioning module, and once the forklift is separated from a battery or the forklift is positioned to leave a calibration area, an owner of the electric forklift is alarmed through the platform. And meanwhile, the buzzer in the battery can give out alarm sound.

Description

Technical Field

[0001] This utility model belongs to the field of industrial electric forklift technology, and in particular relates to a lithium battery structure for electric forklifts used in the rental industry. Background Technology

[0002] Electric forklifts are forklifts that operate using electricity. Most are powered by rechargeable batteries, which drive the drive motor and hydraulic system motor to achieve driving and loading / unloading operations. Electric forklifts are loading and unloading vehicles powered by DC power (batteries). In terms of new materials and processes, the most important manifestation is the application of transistor controllers (SCRs and MOSFETs). Their emergence has greatly improved the performance of electric forklifts. Overall, the durability, reliability, and applicability of electric forklifts have been significantly improved, making them fully competitive with internal combustion engine forklifts.

[0003] Existing electric forklift batteries generally adopt a structure where the vehicle counterweight and battery are separate, which is inconvenient for single-forklift transportation and battery maintenance in the rental industry; traditional electric forklift battery modules only have a battery management system and no anti-theft function, which is only suitable for internal factory areas and cannot meet the special needs of the rental industry.

[0004] Therefore, we propose a lithium battery structure for electric forklifts used in the rental industry. Utility Model Content

[0005] The purpose of this invention is to provide a lithium battery structure for electric forklifts used in the rental industry, thereby solving existing problems.

[0006] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0007] This utility model relates to a lithium battery structure for electric forklifts used in the rental industry. It includes a lithium battery box with a fixed horizontal partition plate inside, which divides the lower space of the lithium battery box into a counterweight cavity. Vertical partition plates are fixed to the left and right sides of the upper surface of the horizontal partition plate, and fixing plates are fixed to the opposite sides of the two vertical partition plates. One surface of each fixing plate is fixedly connected to the inner wall of the lithium battery box. Both the vertical partition plates and the fixing plates are L-shaped plate structures. Fixing screw holes are provided on one side of the upper surface of both the vertical partition plates and the fixing plates. Both the vertical partition plates and the fixing plates are fixedly connected to the inner wall of the lithium battery box. The vertical partition plates and the inner wall of the lithium battery box form a side counterweight cavity. The vertical partition plates, fixing plates, and horizontal partition plates are fixedly connected to form a battery compartment.

[0008] The lithium battery box has a support mounting strip fixed to the front and rear inner walls. The support mounting strip is at the same height as the partition plate. Several fixing screw holes are opened on the upper surface of the support mounting strip.

[0009] A battery module is installed inside the battery compartment; a pressure strip is provided above the battery module, the pressure strip is fixedly connected to a fixing plate, a support plate is fixed on the pressure strip, and a buzzer, a relay and a battery management system are fixed on the upper surface of the support plate. The positioning module is integrated into the battery management system; the battery management system and the battery module are electrically connected.

[0010] The battery box cover is fixedly installed on the upper surface of the support mounting strip and the partition longitudinal plate.

[0011] In one embodiment, the longitudinal partition and the transverse partition are perpendicular or parallel to each other.

[0012] In one embodiment, the relay is electrically connected to the battery management system, the battery module is electrically connected to the relay, and the buzzer is electrically connected to the battery management system.

[0013] In one embodiment, a handle is fixed to the upper surface of the battery compartment cover.

[0014] In one embodiment, the upper surface of the battery box cover is provided with a wiring port, and the side surface of the lithium battery box is provided with a wiring port.

[0015] This utility model has the following beneficial effects:

[0016] This utility model integrates the vehicle's weight distribution and battery module by creating different corresponding areas in the lithium battery box structure, thereby meeting the needs of the forklift rental industry for separating the vehicle and battery, and facilitating the transportation of the chassis.

[0017] This invention prevents theft or unauthorized resale of electric forklifts by adding a positioning module and a buzzer to the battery management system. The system uses the battery management system and positioning module to calibrate the operating range of the rented forklift. If the forklift and battery separate or the positioning module leaves the calibrated area, the platform will alert the owner of the electric forklift, and the buzzer inside the battery will sound an alarm to remind the user of the electric forklift and nearby people.

[0018] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0019] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 A schematic diagram of the overall structure of a lithium battery structure for an electric forklift used in the rental industry;

[0021] Figure 2 A front view of a lithium battery structure for an electric forklift used in the rental industry;

[0022] Figure 3 for Figure 2 Sectional view of AA in the middle;

[0023] Figure 4 for Figure 3 Cross-sectional view of the middle section (BB);

[0024] Figure 5 for Figure 3 CC section view;

[0025] Figure 6 This is a schematic diagram of a battery management system.

[0026] The attached diagram lists the components represented by each number as follows:

[0027] 1. Lithium battery box; 2. Divider horizontal plate; 3. Divider vertical plate; 4. Fixing plate; 5. Battery compartment; 6. Support mounting strip; 7. Battery module; 8. Pressure strip; 9. Bearing plate; 10. Buzzer; 11. Relay; 12. Battery management system; 13. Battery box cover; 14. Handle; 15. Side counterweight cavity; 16. Counterweight cavity. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. 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.

[0029] In the description of this utility model, it should be understood that the terms "upper", "middle", "outer", "inner", etc., which indicate orientation or positional relationship, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the components or elements 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 this utility model.

[0030] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "connected," etc., should be interpreted broadly. For example, "connection" 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 a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0031] Please see Figure 1-6 As shown, this utility model is a lithium battery structure for electric forklifts used in the rental industry, including a lithium battery box 1. The lithium battery box 1 is used to house battery modules 7 and install forklift counterweights. A partition horizontal plate 2 is fixed inside the lithium battery box 1, which divides the lower space inside the lithium battery box 1 into a counterweight cavity 16. Partition vertical plates 3 are fixed on the left and right sides of the upper surface of the partition horizontal plate 2, and fixing plates 4 are fixed on both sides of the opposite surfaces of the two partition vertical plates 3. One surface of the fixing plate 4 is fixedly connected to the inner wall of the lithium battery box 1. Both the partition vertical plates 3 and the fixing plates 4 are "L" shaped plate structures. Fixing screw holes are opened on one side of the upper surface of the partition vertical plates 3 and the fixing plates 4. Both the partition vertical plates 3 and the fixing plates 4 are fixedly connected to the inner wall of the lithium battery box 1. The partition vertical plates 3 and the inner wall of the lithium battery box 1 form a side counterweight cavity 15. The partition vertical plates 3, the fixing plates 4 and the partition horizontal plate 2 are fixedly connected to form a battery compartment 5.

[0032] The inner walls of the lithium battery box 1 are fixed with support mounting strips 6. The support mounting strips 6 are at the same height as the partition longitudinal plate 3. Several fixing screw holes are opened on the upper surface of the support mounting strips 6.

[0033] Battery modules 7 are installed inside battery compartment 5. After being welded in series and parallel, battery modules 7 are covered with insulating material and placed in battery compartment 5. A pressure strip 8 is set above battery modules 7, and the pressure strip 8 is fixedly connected to the fixing plate 4 to fix battery modules 7. A support plate 9 is fixed on the pressure strip 8. A buzzer 10, a relay 11 and a battery management system 12 are fixed on the upper surface of the support plate 9. The battery management system 12 and the buzzer 10 are fixed on the support plate 9 with screws. The support plate 9 has rivet nuts. A positioning module is integrated in the battery management system 12. The battery management system 12 and battery modules 7 are electrically connected. The battery management system 12 integrates a large number of electronic components to protect battery operation. The relay 11 protects the entire charging and discharging circuit of battery module 7.

[0034] The battery box cover 13 is fixedly installed on the upper surface of the support mounting strip 6 and the partition longitudinal plate 3. The charging and discharging connector and RS485 communication port are fixed on the top of the battery box cover 13, mainly by screw connection.

[0035] Furthermore, the longitudinal dividing plate 3 and the transverse dividing plate 2 are perpendicular or parallel to each other.

[0036] Furthermore, the relay 11 is electrically connected to the battery management system 12, the battery module 7 is electrically connected to the relay 11, and the buzzer 10 is electrically connected to the battery management system 12.

[0037] Furthermore, a handle 14 is fixed to the upper surface of the battery box cover 13.

[0038] Furthermore, a wiring port is provided on the upper surface of the battery box cover 13, and a wiring port is provided on the side surface of the lithium battery box 1.

[0039] It should be further explained that when designing the battery structure according to the overall vehicle structure, while meeting the necessary battery compartment 5 structure, sufficient areas for side counterweight cavities 15 and counterweight cavities 16 should be reserved in the structure. During the production process of lithium battery box 1, counterweight material is filled into the counterweight area to achieve the purpose of integrating the battery module 7 and the overall vehicle counterweight into one unit.

[0040] While adopting an advanced battery management system 12, a positioning module and a buzzer 10 have been added. Since forklift rental requires transporting forklifts to different areas for use, the newly added positioning module and buzzer 10 can prevent vehicle theft or unauthorized resale of electric forklifts. The operating range of the rented forklifts is marked through the background of the battery management system 12 and the positioning module. Once the forklift and battery are separated or the positioning leaves the marked area, the platform will alarm the electric forklift owner, and the buzzer 10 inside the battery will sound an alarm to remind the electric forklift user and nearby people.

[0041] In the description of this specification, references to terms such as "an embodiment," "example," and "specific example" indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0042] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A lithium battery structure for electric forklifts used in the rental industry, comprising a lithium battery box (1), characterized in that: The lithium battery box (1) is fixed with a partition horizontal plate (2), which divides the lower space inside the lithium battery box (1) into a counterweight cavity (16); the upper surface of the partition horizontal plate (2) is fixed with partition vertical plates (3) on the left and right sides respectively, and the two partition vertical plates (3) are fixed with fixing plates (4) on opposite sides of their surfaces. One surface of the fixing plate (4) is fixedly connected to the inner wall of the lithium battery box (1). The partition vertical plate (3) and the fixing plate (4) are both "L" shaped plate structures. The upper surface of the partition vertical plate (3) and the fixing plate (4) are both provided with fixing screw holes. The partition vertical plate (3) and the fixing plate (4) are both fixedly connected to the inner wall of the lithium battery box (1). The partition vertical plate (3) and the inner wall of the lithium battery box (1) form a side counterweight cavity (15). The partition vertical plate (3), the fixing plate (4) and the partition horizontal plate (2) are fixedly connected to form a battery compartment (5). The lithium battery box (1) has a support mounting strip (6) fixed on the front and rear inner walls. The support mounting strip (6) is at the same height as the partition plate (3). The upper surface of the support mounting strip (6) has several fixing screw holes. A battery module (7) is installed inside the battery compartment (5); a pressure strip (8) is provided above the battery module (7), the pressure strip (8) is fixedly connected to the fixing plate (4), a support plate (9) is fixed on the pressure strip (8), and a buzzer (10), a relay (11) and a battery management system (12) are fixed on the upper surface of the support plate (9), and a positioning module is integrated in the battery management system (12); the battery management system (12) and the battery module (7) are electrically connected; The battery box cover (13) is fixedly installed on the upper surface of the supporting mounting strip (6) and the partition longitudinal plate (3).

2. The lithium battery structure for electric forklifts used in the rental industry according to claim 1, characterized in that, The longitudinal dividing plate (3) and the transverse dividing plate (2) are perpendicular or parallel to each other.

3. The lithium battery structure for electric forklifts used in the rental industry according to claim 1, characterized in that, The relay (11) is electrically connected to the battery management system (12), the battery module (7) is electrically connected to the relay (11), and the buzzer (10) is electrically connected to the battery management system (12).

4. The lithium battery structure for electric forklifts used in the rental industry according to claim 1, characterized in that, A handle (14) is fixed to the upper surface of the battery box cover (13).

5. The lithium battery structure for electric forklifts used in the rental industry according to claim 1, characterized in that, The upper surface of the battery box cover (13) is provided with a wiring port, and the side surface of the lithium battery box (1) is provided with a wiring port.

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