CN216055041U - Lithium battery explosion-proof box structure for forklift - Google Patents

Abstract

The utility model relates to the technical field of lithium battery boxes, in particular to an explosion-proof box structure of a lithium battery for a forklift, which comprises an outer box body, wherein the outer box body is formed by combining steel plates with the thickness of more than 10mm, an inner cavity of the outer box body is divided into a battery bin positioned on the lower layer and an electric bin positioned on the upper layer through a partition plate, a plurality of battery modules are arranged in the battery bin, a plurality of first connectors are fixedly arranged on the partition plate, information acquisition components for detecting information of the battery modules are arranged in the battery bin, the information acquisition components are electrically connected with electric elements through the first connectors, a second connector for connecting external components is arranged at the position, positioned on the electric bin, of the outer box body, and both the first connectors and the second connectors are filled with sealant. This device realizes the explosion-proof function to the lithium cell box, improves fork truck power consumption security, reduces the probability of battery explosion to reduce the dangerous degree of taking afterwards in the explosion.

Description

Lithium battery explosion-proof box structure for forklift

Technical Field

The utility model relates to the technical field of lithium battery boxes, in particular to an explosion-proof lithium battery box structure for a forklift.

Background

In the prior art, the battery explosion-proof forklift adopts an explosion-proof special lead-acid power supply as a power source, and a large amount of lead and acid exist in a lead-acid storage battery during production and use, so that the environment is polluted if the lead-acid storage battery is not properly treated after production and abandonment; distilled water is required to be added for maintenance in normal work, so that the workload is increased, and the labor cost and the material cost are increased; the charging time is long, and the effective working time is short; the battery has large volume and heavy weight, is relatively large relative to the vehicle body, and is limited to be used in special explosion danger fields.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the defect that a lead-acid battery forklift in the prior art is poor in using effect, and provides an explosion-proof box structure of a lithium battery for the forklift.

In order to achieve the purpose, the utility model adopts the following technical scheme:

an explosion-proof box structure of a lithium battery for a forklift comprises an outer box body, wherein the outer box body is formed by combining steel plates with the thickness of more than 10mm, a horizontally arranged partition plate is arranged in the outer box body, the inner cavity of the outer box body is divided into a battery bin at the lower layer and an electric bin at the upper layer by the clapboard, a plurality of battery modules are arranged in the battery bin, electric elements are arranged in the electric bin, the battery modules penetrate through the partition board through leads and are connected with the electric elements, a plurality of first connectors are fixedly arranged on the partition board, an information acquisition component for detecting the information of the battery module is arranged in the battery bin, the information acquisition components and parts are connected with the electric elements electricity through first connector, the position that outer box position is located the electric storehouse is equipped with the second connector that is used for connecting external components and parts, first connector, second connector all casting glue.

The battery module comprises a rectangular grid box body which is vertically arranged and is open in the side face, an electric core is installed in each grid of the rectangular grid box body, the electric cores are adjacent to each other and are electrically connected through a conductive metal plate, and the rectangular grid box body is made of insulating materials.

The battery module further comprises a rear end plate, two side columns and a front column, wherein the rear end plate is located on the back face of the rectangular grid box body, the side columns are located on two sides of the rectangular grid box body respectively, the front column is located on the front side of the rectangular grid box body, and two electrode ends of the battery cell are located on two sides of the front column respectively.

The information acquisition component comprises one or more of a cell voltage information detection element, a cell current information detection element and a cell temperature information detection element;

the front upright post comprises a rear plate and a shell cover which are assembled together, an accommodating cavity is formed between the rear plate and the shell cover, the rear plate is provided with a long-strip seam communicated with the accommodating cavity, and the shell cover is provided with a line hole communicated with the accommodating cavity.

The lead both ends are connected with electric elements, battery module electricity respectively through the terminal of colding pressing, the terminal of colding pressing passes through the bolt fastening at electric elements's the portion of connecting electricity or battery module's the portion of connecting electricity, the one side that the head of bolt is close to the screw rod has one at least and the annular bellying of the coaxial setting of screw rod, the radial cross section of annular bellying is triangle-shaped, the annular concave part that supplies annular bellying male is seted up to the one side that the terminal of colding pressing is close to the bolt head.

The hardness of the annular protruding portion is larger than that of the cold pressing terminal, and the section of the annular groove portion is smaller than that of the annular protruding portion.

The lithium battery explosion-proof box body structure for the forklift has the advantages that: this device full play lithium cell uses on fork truck advantage, and it is fast to charge, continuation of the journey strong, uses portably, and this device realizes the explosion-proof function to the lithium cell box, improves fork truck power consumption security, reduces the probability of battery explosion to reduce the dangerous degree of bringing afterwards in the explosion.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic view of the internal structure of the present invention;

FIG. 3 is a schematic view of a battery module according to the present invention;

FIG. 4 is a schematic structural view of a front pillar according to the present invention;

fig. 5 is a schematic view of the structure of the cold-pressed terminal and the bolt of the present invention.

In the figure: the battery box comprises an outer box body 1, a first connector 2, a battery module 3, a battery bin 4, a partition plate 5, an electrical bin 6, an electrical element 7, a cold pressing terminal 8, a side upright post 9, an electrical core 10, a rear end plate 11, a front upright post 12, a wire hole 13, a shell cover 14, a rear plate 15, a long strip seam 16, a bolt 17, an annular protruding portion 18, an annular groove portion 19, a second connector 20 and a rectangular grid box body 21.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.

Referring to fig. 1-5, an explosion-proof box structure of lithium battery for forklift comprises an outer box 1, wherein the outer box 1 is formed by combining steel plates with the thickness of more than 10mm, the adjacent steel plates are combined by welding and bolting, a sealing ring is arranged between the steel plates connected by bolts, the sealing effect of the box is improved, the explosion-proof basic protection of the battery box is realized by adopting high-strength steel plates, a horizontally arranged baffle 5 is arranged in the outer box 1, the inner cavity of the outer box 1 is divided into a battery compartment 4 positioned at the lower layer and an electrical compartment 6 positioned at the upper layer by the baffle 5, the battery is isolated from the electricity by the baffle 5, the explosion-proof effect is further improved, a plurality of battery modules 3 are arranged in the battery compartment 4, an electrical element 7 is arranged in the electrical compartment 6, the battery modules 3 are connected with the electrical element 7 by a lead penetrating through the baffle 5, the position of running through the baffle need be sealed through the sealing washer or the encapsulating, fixed mounting has the first connector 2 of a plurality of on the baffle 5, install the information acquisition components and parts that are used for detecting 3 information of battery module in the battery compartment 4, the information acquisition components and parts are connected with electric elements 7 electricity through first connector 2, the position that outer box 1 is located electric bin 6 is equipped with the second connector 20 that is used for connecting external components and parts, first connector 2, the equal casting glue of second connector 20, as the connection structure of each components and parts through the connector, and the connector casting glue, the position of avoiding connecting produces the spark, further improve explosion-proof performance.

Battery module 3 includes vertical setting and the open rectangle check box body 21 in side, all installs an electric core 10 in every check of rectangle check box body 21, and adjacent electric core passes through conductive metal plate electric connection, and rectangle check box body 21 is insulating material, and every electric core all sets up alone, reduces the risk of short circuit between the adjacent electric core.

Battery module 3 still includes back end plate 11, two side stands 9, a front column 12, back end plate 11 is located the back of rectangle check box body 21, two side stands 9 are located rectangle check box body 21 both sides respectively, front column 12 is located the front side of rectangle check box body 21, and two electrode tips of electric core 10 are located front column 12 both sides respectively, this kind of structure makes the rectangle check box body 21 that is equipped with electric core spacing between end plate and stand, improve the stability of electric core installation and the convenience of installation.

The information acquisition components comprise one or more of a cell voltage information detection element, a cell current information detection element and a cell temperature information detection element, each cell needs to acquire voltage, current and temperature independently, and each information of the cell is accurately acquired, so that the abnormal state of the cell is further found, and the explosion of the battery is avoided in advance;

the front pillar 12 includes a back plate 15 and a cover 14 assembled together, a housing cavity is provided between the back plate 15 and the cover 14, the back plate 15 has a long slit 16 communicating with the housing cavity, the cover 14 has a wire hole 13 communicating with the housing cavity, a wire for detecting a component passes through the housing cavity, and then is connected with an electric component by a connector.

Wire both ends are respectively with electric element 7 through colding pressing terminal 8, battery module 3 electricity is connected, colding pressing terminal 8 passes through bolt 17 to be fixed at the portion of connecting electricity of electric element 7 or battery module 3's the portion of connecting electricity, the one side that bolt 17's head is close to the screw rod has one at least and the annular bulge 18 of the coaxial setting of screw rod, the radial cross-section of annular bulge 18 is triangle-shaped, colding pressing terminal 8 and being close to the one side of bolt 17 head and offering and supplying annular bulge 18 male annular concave part 19, the through-hole of colding pressing terminal generally can be greater than the diameter of bolt, lead to producing the displacement easily after the terminal installation of colding pressing, annular bulge 18 through bolt 17 carries out coaxial spacing to colding pressing terminal 8, avoid colding pressing terminal 8 and rock, improve terminal connection stability, reduce the emergence of phenomenon of striking sparks.

Annular boss 18's hardness is greater than the hardness of cold pressing terminal 8, annular groove portion 19's cross-section is less than annular boss 18's cross-section, when screwing up the bolt, extrude annular boss 18 in annular groove portion 19, because the two hardness is different, annular boss 18 extrudees annular groove portion 19 and warp, make the two shapes more coincide, make the laminating that terminal and bolt are inseparabler in the time of the extrusion, and can be better make the terminal sticis on connecing the electrical component, copper product matter is selected for use to general terminal, it is good to electrically conduct.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any technical solutions, concepts and designs obtained by equivalent substitutions or changes of the technical solutions and the utility model concepts of the present invention by those skilled in the art within the technical scope of the present invention shall be covered by the scope of the present invention.

Claims (6)

1. The utility model provides an explosion-proof box structure of lithium cell for fork truck, includes outer box (1), its characterized in that, outer box (1) adopts the combination of steel sheet more than 10mm to form, install baffle (5) that the level set up in outer box (1), through baffle (5) with the inner chamber of outer box (1) is separated for the battery compartment (4) that is located the lower floor, is located upper electrical warehouse (6), be equipped with a plurality of battery module (3) in battery compartment (4), install electrical component (7) in electrical warehouse (6), battery module (3) run through baffle (5) through the wire and are connected with electrical component (7), fixed mounting has a plurality of first connector (2) on baffle (5), install the information acquisition components and parts that are used for detecting battery module (3) information in battery compartment (4), the information acquisition components and parts is connected with electrical component (7) through first connector (2), the position that outer box (1) is located electric storehouse (6) is equipped with second connector (20) that are used for connecting external components and parts, first connector (2), second connector (20) all casting glue.

2. The explosion-proof box body structure of lithium battery for fork truck according to claim 1, characterized in that, battery module (3) includes the rectangle check box body (21) that sets up vertically and open side, install one electric core (10) in every check of rectangle check box body (21), adjacent the electric core passes through the electric conduction metal sheet and connects electrically, rectangle check box body (21) is insulating material.

3. The explosion-proof box structure of lithium battery for fork truck of claim 2, characterized in that, the battery module (3) further comprises a rear end plate (11), two side columns (9) and a front column (12), the rear end plate (11) is located at the back of the rectangular grid box body (21), the two side columns (9) are respectively located at two sides of the rectangular grid box body (21), the front column (12) is located at the front side of the rectangular grid box body (21), and the two electrode ends of the battery cell (10) are respectively located at two sides of the front column (12).

4. The explosion-proof box structure of lithium battery for forklift according to claim 3, wherein the information collecting component includes one or more of a cell voltage information detecting element, a cell current information detecting element, and a cell temperature information detecting element;

the front upright post (12) comprises a rear plate (15) and a shell cover (14) which are assembled together, an accommodating cavity is formed between the rear plate (15) and the shell cover (14), the rear plate (15) is provided with a long slit (16) communicated with the accommodating cavity, and the shell cover (14) is provided with a line hole (13) communicated with the accommodating cavity.

5. The lithium battery explosion-proof box body structure for the forklift as recited in claim 1, wherein the two ends of the lead are respectively electrically connected with the electrical element (7) and the battery module (3) through the cold pressing terminal (8), the cold pressing terminal (8) is fixed at the power connection part of the electrical element (7) or the power connection part of the battery module (3) through a bolt (17), one surface of the head of the bolt (17), which is close to the screw, is at least provided with an annular protruding part (18) coaxially arranged with the screw, the radial cross section of the annular protruding part (18) is triangular, and one surface of the cold pressing terminal (8), which is close to the head of the bolt (17), is provided with an annular groove part (19) for inserting the annular protruding part (18).

6. The explosion-proof box structure of lithium batteries for forklifts according to claim 5, characterized in that the hardness of said annular boss (18) is greater than the hardness of said cold-pressed terminal (8), the section of said annular groove (19) being smaller than the section of the annular boss (18).

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