Lithium battery assembly convenient to overhaul

Abstract

The utility model discloses a lithium battery assembly convenient to overhaul, and relates to the technical field of storage battery assemblies. The lithium battery assembly convenient to overhaul comprises a lithium battery mounting box shell, the lithium battery pack limiting device comprises a fixing frame, the upper end of the fixing frame is fixedly connected with a first rubber pad, and the interior of the lithium battery mounting box shell is slidably connected with a lithium battery pack limiting frame; the lithium battery pack fixing frame and the two lithium battery pack limiting frames are fixed through bolts, and the two lithium battery pack limiting frames are fixed through bolts, so that a storage battery between the two lithium battery pack limiting frames can be conveniently fixed, the stability of the storage battery during fixing can be conveniently improved, and the service life of the storage battery can be prolonged; the bolts are convenient to disassemble, the storage battery is convenient to disassemble and overhaul, the storage battery between the two lithium battery pack limiting frames is convenient to expose, the storage battery is convenient to disassemble and replace, and the disassembly efficiency of the storage battery is improved.

Description

Technical Field

[0001] This utility model relates to the field of battery assembly technology, and in particular to a lithium battery assembly that is easy to maintain. Background Technology

[0002] A battery is a device that converts chemical energy into electrical energy. It consists of a cup, tank, or other container or composite container that contains an electrolyte solution and metal electrodes to generate an electric current. It has a positive electrode and a negative electrode.

[0003] A lithium battery is formed by welding nickel sheets to both ends of several neatly arranged lithium battery cells and then binding them together with tape. To increase voltage during use, lithium batteries need to be connected in series. Although the structure is robust and stable, disassembly and inspection are necessary when some lithium batteries malfunction. Chinese utility model patent, authorization announcement number "CN211320197U", discloses a lithium battery that facilitates series connection, including a straight connector, an L-shaped connector, and a lithium battery body. The straight connector has a first groove on one side, and the negative electrode of the lithium battery body is fitted inside this first groove. The positive electrode of the lithium battery body is fitted inside a second groove, which is also located inside the straight connector. The L-shaped connector has a third groove at one end, and the positive electrode of the lithium battery body is fitted inside this third groove. The negative electrode of the lithium battery body is fitted into a fourth groove.

[0004] The above technical solution, by setting up a straight connector, an L-shaped connector, a first groove, a second groove, a third groove, and a fourth groove structure, has the advantages of facilitating the series connection of lithium battery bodies and facilitating the placement of the series-connected lithium battery bodies, thus saving space. However, the above technical solution still has certain defects. The use of telescopic springs makes it difficult to stably fix the lithium battery. During long-term use, the telescopic springs may undergo plastic deformation or fatigue damage due to repeated expansion and contraction, resulting in a decrease in their fixing stability to the battery, thereby reducing their elasticity and fixing effect, and may even cause the battery to fall off or be damaged. Therefore, this utility model proposes a new solution. Utility Model Content

[0005] The purpose of this utility model is to at least solve one of the technical problems existing in the prior art, and to provide a lithium battery assembly that is easy to maintain. It can solve the problem that the use of telescopic springs is not convenient for the stable fixation of lithium batteries. During long-term use, telescopic springs may undergo plastic deformation or fatigue damage due to repeated expansion and contraction, which will reduce their fixation stability to the battery, thereby reducing their elasticity and fixation effect, and may even lead to the battery falling off or being damaged.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a lithium battery assembly that is easy to maintain, including a lithium battery mounting box housing;

[0007] A lithium battery pack heat dissipation component is located inside the lithium battery mounting box housing.

[0008] A lithium battery pack limiting device is installed inside the lithium battery mounting box housing. The lithium battery pack limiting device includes a fixing frame, which is fixedly connected inside the lithium battery mounting box housing. A first rubber pad is fixedly connected to the upper end of the fixing frame. The lithium battery pack limiting frame is slidably connected inside the lithium battery mounting box housing. Two connecting frames are fixedly connected to the surface of the lithium battery pack limiting frame.

[0009] The surface of the lithium battery mounting box housing has two sliding grooves, and two connecting brackets are slidably connected to the corresponding sliding grooves. The surface of the lithium battery pack limiting bracket has a battery mounting groove, and the surface of the lithium battery pack limiting bracket has four through grooves.

[0010] The lithium battery pack limiting frame and the connecting frame are integrated into one unit. The lithium battery pack limiting frame has a hollow structure and an open bottom.

[0011] Preferably, there are two sets of the lithium battery pack limiting frame, connecting frame, sliding groove, and through groove, which are symmetrically arranged inside the lithium battery mounting box housing.

[0012] The lithium battery mounting box housing has a lithium battery pack fixing bracket inside. The two lithium battery pack limiting brackets are connected by fixing bolts, and the two lithium battery pack limiting brackets and the lithium battery pack fixing bracket are connected by fixing bolts.

[0013] Preferably, the lithium battery pack heat dissipation assembly includes a fixing plate, which is fixedly connected to the inside of the lithium battery mounting box housing. The surface of the lithium battery mounting box housing is provided with a plurality of first through holes, which are rectangular recesses and cylindrical grooves, and the cylindrical grooves extend into the inside of the lithium battery mounting box housing.

[0014] The surface of the fixing plate has multiple rectangular slots, and two cooling fans are fixedly installed on the surface of the fixing plate. Multiple wave-shaped heat sinks are fixedly connected inside the two lithium battery pack limiting brackets.

[0015] Each of the four connecting brackets has multiple second through holes on its surface.

[0016] Preferably, the upper end of the lithium battery mounting box housing is provided with a box cover, and the lower end of the box cover is provided with four connecting blocks, which are slidably connected to corresponding sliding grooves.

[0017] The cover is fixed to the lithium battery mounting box housing by fixing bolts on both sides.

[0018] Preferably, the upper end of the box lid is hinged with a handle;

[0019] The inside of the box lid is fixedly connected with a second rubber gasket.

[0020] Preferably, two limiting rings are fixedly connected to the surface of the lithium battery mounting box housing.

[0021] Compared with the prior art, the beneficial effects of this utility model are:

[0022] 1. This convenient lithium battery assembly features a lithium battery pack mounting bracket that is bolted to both the lithium battery pack mounting bracket and the two lithium battery pack limiting brackets. The bolts also facilitate securing the battery between the two limiting brackets, improving stability and extending battery life. Furthermore, the through-slots allow for easy bolt removal, facilitating battery disassembly and maintenance. The mounting bracket and limiting brackets can be easily separated, exposing the battery between them for convenient removal and replacement, thus improving disassembly efficiency.

[0023] 2. This easily maintainable lithium battery assembly, through the arrangement of a cooling fan, lithium battery pack retaining bracket, first through hole, second through hole, and heat sink, facilitates heat dissipation and cooling of the battery. The multiple wavy heat sinks create resistance to the air flowing over their surface, allowing the air to carry away the heat from the heat sink surface and improving the heat dissipation effect. At the same time, the heat sinks inside the lithium battery pack retaining bracket can reinforce the retaining bracket and prevent deformation during the fixing of the battery, which would affect the fixing effect and improve the stability of the battery installation. Attached Figure Description

[0024] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0025] Figure 1 This is a schematic diagram of a lithium battery assembly structure that is easy to inspect and maintain according to this utility model;

[0026] Figure 2 This is a schematic cross-sectional view of the lithium battery mounting box housing of this utility model;

[0027] Figure 3 This is a schematic diagram of the cooling fan of this utility model;

[0028] Figure 4 This is a schematic diagram of the lithium battery pack limiting frame of this utility model;

[0029] Figure 5 This is a schematic diagram of the box cover of this utility model;

[0030] Figure 6 This is a schematic diagram of the heat sink of this utility model;

[0031] Figure 7 This utility model Figure 2 Enlarged diagram of point A in the middle.

[0032] Reference numerals in the attached drawings: 1. Lithium battery mounting box housing; 2. Limiting ring; 3. Box cover; 4. Fixing plate; 5. Fixing bracket; 6. First rubber pad; 7. Cooling fan; 8. Lithium battery pack limiting bracket; 9. Connecting bracket; 10. Lithium battery pack fixing bracket; 11. Slide groove; 12. First through hole; 13. Second through hole; 14. Through groove; 15. Heat sink; 16. Connecting block; 17. Second rubber pad; 18. Handle. Detailed Implementation

[0033] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.

[0034] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. 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.

[0035] In the description of this utility model, terms such as greater than, less than, and exceeding are understood to exclude the stated number, while terms such as above, below, and within are understood to include the stated number. The use of "first" and "second" in the description is merely for distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the quantity or sequential relationship of the indicated technical features.

[0036] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0037] Please see Figure 1-7This utility model provides a technical solution: a lithium battery assembly that is easy to maintain, including a lithium battery mounting box housing 1, a lithium battery pack heat dissipation assembly, the lithium battery pack heat dissipation assembly being disposed inside the lithium battery mounting box housing 1, and a lithium battery pack limiting device, the lithium battery pack limiting device being disposed inside the lithium battery mounting box housing 1, the lithium battery pack limiting device including a fixing frame 5, the fixing frame 5 being fixedly connected to the inside of the lithium battery mounting box housing 1, the upper end of the fixing frame 5 being fixedly connected to a first rubber pad 6, the inside of the lithium battery mounting box housing 1 being slidably connected to a lithium battery pack limiting frame 8, the surface of the lithium battery pack limiting frame 8 being fixedly connected to two connecting frames 9, the surface of the lithium battery mounting box housing 1 having two sliding grooves 11, the two connecting frames 9 being slidably connected to the corresponding sliding grooves 11 respectively, the surface of the lithium battery pack limiting frame 8 having a battery mounting groove, the surface of the lithium battery pack limiting frame 8 having four through grooves 14, the lithium battery pack limiting frame 8 and the connecting frames 9 forming a whole, the lithium battery pack limiting frame 8 having a hollow structure and an open bottom.

[0038] There are two sets of lithium battery pack limiting brackets 8, connecting brackets 9, sliding grooves 11, and through grooves 14, which are symmetrically arranged inside the lithium battery mounting box housing 1. A lithium battery pack fixing bracket 10 is provided inside the lithium battery mounting box housing 1. The two lithium battery pack limiting brackets 8 are connected by fixing bolts, and the two lithium battery pack limiting brackets 8 and the lithium battery pack fixing bracket 10 are connected by fixing bolts.

[0039] The upper end of the lithium battery mounting box housing 1 is provided with a box cover 3, and the lower end of the box cover 3 is provided with four connecting blocks 16. The four connecting blocks 16 are slidably connected to the corresponding sliding grooves 11. The box cover 3 is fixed to the lithium battery mounting box housing 1 by fixing bolts on both sides. A second rubber pad 17 is fixedly connected inside the box cover 3.

[0040] A handle 18 is hinged to the upper end of the cover 3, and two limiting rings 2 are fixedly connected to the surface of the lithium battery mounting box housing 1.

[0041] The lithium battery pack heat dissipation assembly includes a fixing plate 4, which is fixedly connected to the inside of the lithium battery mounting box housing 1. The surface of the lithium battery mounting box housing 1 is provided with multiple first through holes 12, which are rectangular recesses and cylindrical grooves, with the cylindrical grooves extending into the inside of the lithium battery mounting box housing 1. The surface of the fixing plate 4 is provided with multiple rectangular grooves. Two cooling fans 7 are fixedly installed on the surface of the fixing plate 4. Multiple wave-shaped heat sinks 15 are fixedly connected to the inside of the two lithium battery pack limiting brackets 8. The surfaces of the four connecting brackets 9 are each provided with multiple second through holes 13.

[0042] When using this lithium battery pack, the combination of two lithium battery pack limiting brackets 8 facilitates the limiting of the lithium battery. At the same time, bolts are used to fix the two lithium battery pack limiting brackets 8. A lithium battery pack fixing bracket 10 is used at the upper end of the lithium battery pack limiting brackets 8. The lithium battery pack fixing bracket 10 is fixed to the two lithium battery pack limiting brackets 8 by bolts, which facilitates the limiting of the lithium battery and the auxiliary fixing of the two lithium battery pack limiting brackets 8. Furthermore, the use of multiple through slots 14 makes it easy to use tools to reach into the middle of the two lithium battery pack limiting brackets 8 to tighten and loosen the bolts.

[0043] During use, the cooling fan 7 dissipates heat from the lithium battery pack. Activating the cooling fan 7 draws air from outside the lithium battery mounting housing 1 through the first through-hole 12 at the bottom of the housing. The fixing plate 4 has multiple rectangular slots on its surface, facilitating airflow within the plate and directing the air towards the two lithium battery pack limiting brackets 8. These brackets 8 are hollow with downward-facing openings, further enhancing airflow and carrying away heat from the lithium batteries. The multiple wavy heat sinks 15 facilitate heat transfer from the lithium batteries to the limiting brackets. Heat from the frame 8 is transferred to the heat sink 15, which dissipates the heat into the air. The air is then exhausted through the second through hole 13 at the connecting frame 9, which improves the heat dissipation of the lithium battery. The wave-shaped design of the heat sink 15 creates resistance to the air flowing over its surface, allowing the air to carry away the heat from the surface of the heat sink 15 and improving its heat dissipation effect. At the same time, the heat sink 15 inside the lithium battery pack limiting frame 8 can reinforce the lithium battery pack limiting frame 8, preventing deformation of the lithium battery pack limiting frame 8 during the fixing of the battery, which would affect the fixing effect of the battery and improve the stability of the battery installation.

[0044] The first through hole 12 and the second through hole 13 facilitate airflow within the lithium battery mounting box housing 1 and the lithium battery pack limiting frame 8. This allows the flowing air to carry away any air trapped inside the lithium battery mounting box housing 1 and the lithium battery pack limiting frame 8. The two limiting rings 2 on the surface of the lithium battery mounting box housing 1 reinforce the surface of the lithium battery mounting box housing 1 and prevent obstruction of the first through hole 12 and the second through hole 13 during installation, thus avoiding any impact on air intake and exhaust. Furthermore, the first through hole 12 is a rectangular recess and a cylindrical groove, with the cylindrical groove extending into the interior of the lithium battery mounting box housing 1, preventing obstruction of the first through hole 12 during installation and ensuring effective air intake.

[0045] By fixing the second rubber pad 17 inside the cover 3 and installing the first rubber pad 6 on the surface of the mounting bracket 5, the first rubber pad 6 and the second rubber pad 17 can protect the lithium battery pack limiting bracket 8 during battery use, reduce the vibration of the lithium battery pack limiting bracket 8 inside the lithium battery mounting box housing 1, and absorb and weaken the vibration through the first rubber pad 6 and the second rubber pad 17, thereby improving the stability of the lithium battery pack limiting bracket 8.

[0046] Since the lithium battery pack may malfunction after a period of use, it needs to be disassembled, repaired and inspected. First, use tools to remove the bolts connecting the lithium battery mounting box housing 1 and the box cover 3. Pull the handle 18 upward so that the handle 18 moves the box cover 3 upward. The box cover 3 moves the connecting block 16 to slide inside the corresponding slide groove 11, which makes it easy to remove the box cover 3. The setting of the connecting block 16 and the slide groove 11 makes it easy to quickly align the position during the installation and removal of the box cover 3, which is convenient for the installation and removal of the box cover 3.

[0047] After removing the cover 3 from the lithium battery mounting box housing 1, the lithium battery pack limiting bracket 8 inside the lithium battery mounting box housing 1 can be exposed. Since the connecting bracket 9 is inside the slide groove 11, there is a certain gap between the connecting bracket 9 and the lower end of the slide groove 11, which makes it easy for the staff to use an "L"-shaped tool to lift the connecting bracket 9 upward, and to lift the lithium battery pack limiting bracket 8 upward. During the process of lifting the lithium battery pack limiting bracket 8, the through groove 14 on the surface of the lithium battery pack limiting bracket 8 can be exposed, which makes it easy for the staff to separate the lithium battery pack limiting bracket 8 from the inside of the lithium battery mounting box housing 1 through the through groove 14, and to take out the lithium battery pack limiting bracket 8, which is convenient for battery maintenance.

[0048] Workers use a voltmeter to measure the voltage of each battery to determine if there is a problem. When a problem is detected, tools are used to pass through the through-slot 14 to facilitate the removal of the bolts connecting the two lithium battery pack limiting brackets 8 and the bolts connecting the two lithium battery pack limiting brackets 8 and the lithium battery pack fixing bracket 10. This facilitates the separation of the lithium battery pack fixing bracket 10 from the lithium battery pack limiting brackets 8, and exposes the batteries between the two lithium battery pack limiting brackets 8, making it easier to remove and replace the batteries and improving the efficiency of battery removal.

[0049] Furthermore, the lithium battery pack mounting bracket 10 is fixed to the two lithium battery pack limiting brackets 8 by bolts, and the two lithium battery pack limiting brackets 8 are also fixed to each other by bolts. This facilitates the fixing of the battery between the two lithium battery pack limiting brackets 8, improves the stability of the battery during fixing, and extends the service life of the battery. At the same time, the through groove 14 facilitates the removal of bolts, facilitates the disassembly and maintenance of the battery, facilitates the separation of the lithium battery pack mounting bracket 10 from the lithium battery pack limiting brackets 8, facilitates the separation of the two lithium battery pack limiting brackets 8, facilitates the separation of the battery between the two lithium battery pack limiting brackets 8, facilitates the disassembly and replacement of the battery, and improves the efficiency of battery disassembly.

[0050] The arrangement of the cooling fan 7, lithium battery pack retaining bracket 8, first through hole 12, second through hole 13, and heat sink 15 facilitates heat dissipation and cooling of the battery. The multiple wavy heat sinks 15 create resistance to the air flowing over them, allowing the air to carry away the heat from the surface of the heat sinks 15 and improving their heat dissipation effect. At the same time, the heat sinks 15 inside the lithium battery pack retaining bracket 8 can reinforce the lithium battery pack retaining bracket 8, preventing deformation of the lithium battery pack retaining bracket 8 during the process of fixing the battery, which would affect the fixing effect of the battery and improve the stability of the battery installation.

[0051] Working principle: When using this lithium battery pack, the combination of two lithium battery pack limiting brackets 8 facilitates the limiting of the lithium battery. At the same time, bolts are used to fix the two lithium battery pack limiting brackets 8. A lithium battery pack fixing bracket 10 is used at the upper end of the lithium battery pack limiting brackets 8. The lithium battery pack fixing bracket 10 is fixed to the two lithium battery pack limiting brackets 8 by bolts, which facilitates the limiting of the lithium battery and the auxiliary fixing of the two lithium battery pack limiting brackets 8. Furthermore, the use of multiple through slots 14 makes it easy to use tools to reach into the middle of the two lithium battery pack limiting brackets 8 to tighten and loosen the bolts.

[0052] During use, the cooling fan 7 dissipates heat from the lithium battery pack. Activating the cooling fan 7 draws air from outside the lithium battery mounting housing 1 through the first through-hole 12 at the bottom of the housing. The fixing plate 4 has multiple rectangular slots on its surface, facilitating airflow within the plate and directing the air towards the two lithium battery pack limiting brackets 8. These brackets 8 are hollow with downward-facing openings, further enhancing airflow and carrying away heat from the lithium batteries. The multiple wavy heat sinks 15 facilitate heat transfer from the lithium batteries to the limiting brackets. Heat from the frame 8 is transferred to the heat sink 15, which dissipates the heat into the air. The air is then exhausted through the second through hole 13 at the connecting frame 9, which improves the heat dissipation of the lithium battery. The wave-shaped design of the heat sink 15 creates resistance to the air flowing over its surface, allowing the air to carry away the heat from the surface of the heat sink 15 and improving its heat dissipation effect. At the same time, the heat sink 15 inside the lithium battery pack limiting frame 8 can reinforce the lithium battery pack limiting frame 8, preventing deformation of the lithium battery pack limiting frame 8 during the fixing of the battery, which would affect the fixing effect of the battery and improve the stability of the battery installation.

[0053] The first through hole 12 and the second through hole 13 facilitate airflow within the lithium battery mounting box housing 1 and the lithium battery pack limiting frame 8. This allows the flowing air to carry away any air trapped inside the lithium battery mounting box housing 1 and the lithium battery pack limiting frame 8. The two limiting rings 2 on the surface of the lithium battery mounting box housing 1 reinforce the surface of the lithium battery mounting box housing 1 and prevent obstruction of the first through hole 12 and the second through hole 13 during installation, thus avoiding any impact on air intake and exhaust. Furthermore, the first through hole 12 is a rectangular recess and a cylindrical groove, with the cylindrical groove extending into the interior of the lithium battery mounting box housing 1, preventing obstruction of the first through hole 12 during installation and ensuring effective air intake.

[0054] By fixing the second rubber pad 17 inside the cover 3 and installing the first rubber pad 6 on the surface of the mounting bracket 5, the first rubber pad 6 and the second rubber pad 17 can protect the lithium battery pack limiting bracket 8 during battery use, reduce the vibration of the lithium battery pack limiting bracket 8 inside the lithium battery mounting box housing 1, and absorb and weaken the vibration through the first rubber pad 6 and the second rubber pad 17, thereby improving the stability of the lithium battery pack limiting bracket 8.

[0055] Since the lithium battery pack may malfunction after a period of use, it needs to be disassembled, repaired and inspected. First, use tools to remove the bolts connecting the lithium battery mounting box housing 1 and the box cover 3. Pull the handle 18 upward so that the handle 18 moves the box cover 3 upward. The box cover 3 moves the connecting block 16 to slide inside the corresponding slide groove 11, which makes it easy to remove the box cover 3. The setting of the connecting block 16 and the slide groove 11 makes it easy to quickly align the position during the installation and removal of the box cover 3, which is convenient for the installation and removal of the box cover 3.

[0056] After removing the cover 3 from the lithium battery mounting box housing 1, the lithium battery pack limiting bracket 8 inside the lithium battery mounting box housing 1 can be exposed. Since the connecting bracket 9 is inside the slide groove 11, there is a certain gap between the connecting bracket 9 and the lower end of the slide groove 11, which makes it easy for the staff to use an "L"-shaped tool to lift the connecting bracket 9 upward, and to lift the lithium battery pack limiting bracket 8 upward. During the process of lifting the lithium battery pack limiting bracket 8, the through groove 14 on the surface of the lithium battery pack limiting bracket 8 can be exposed, which makes it easy for the staff to separate the lithium battery pack limiting bracket 8 from the inside of the lithium battery mounting box housing 1 through the through groove 14, and to take out the lithium battery pack limiting bracket 8, which is convenient for battery maintenance.

[0057] Workers use a voltmeter to measure the voltage of each battery to determine if there is a problem. When a problem is detected, tools are used to pass through the through-slot 14 to facilitate the removal of the bolts connecting the two lithium battery pack limiting brackets 8 and the bolts connecting the two lithium battery pack limiting brackets 8 and the lithium battery pack fixing bracket 10. This facilitates the separation of the lithium battery pack fixing bracket 10 from the lithium battery pack limiting brackets 8, and exposes the batteries between the two lithium battery pack limiting brackets 8, making it easier to remove and replace the batteries and improving the efficiency of battery removal.

[0058] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A lithium battery assembly that facilitates servicing, characterized by: Including the lithium battery mounting box housing (1); The lithium battery pack heat dissipation component is located inside the lithium battery mounting box housing (1); The lithium battery pack limiting device is set inside the lithium battery mounting box housing (1). The lithium battery pack limiting device includes a fixing frame (5), which is fixedly connected inside the lithium battery mounting box housing (1). A first rubber pad (6) is fixedly connected to the upper end of the fixing frame (5). A lithium battery pack limiting frame (8) is slidably connected inside the lithium battery mounting box housing (1). Two connecting frames (9) are fixedly connected to the surface of the lithium battery pack limiting frame (8). Two grooves (11) are opened on the surface of the lithium battery mounting box housing (1), and two connecting brackets (9) are slidably connected to the corresponding grooves (11). The surface of the lithium battery pack limiting bracket (8) is provided with a battery mounting groove, and the surface of the lithium battery pack limiting bracket (8) is provided with four through grooves (14). The lithium battery pack limiting frame (8) and the connecting frame (9) are integrated into one unit. The lithium battery pack limiting frame (8) has a hollow structure and an open bottom.

2. The lithium battery assembly of claim 1, wherein: The lithium battery pack limiting frame (8), connecting frame (9), sliding groove (11), and through groove (14) are all in two sets, and are symmetrically arranged inside the lithium battery mounting box housing (1); The lithium battery mounting box housing (1) is equipped with a lithium battery pack fixing frame (10). The two lithium battery pack limiting frames (8) are connected by fixing bolts. The two lithium battery pack limiting frames (8) and the lithium battery pack fixing frame (10) are connected by fixing bolts.

3. The lithium battery assembly of claim 1, wherein: The lithium battery pack heat dissipation assembly includes a fixing plate (4), which is fixedly connected to the inside of the lithium battery mounting box housing (1). The surface of the lithium battery mounting box housing (1) is provided with a plurality of first through holes (12), which are rectangular recesses and cylindrical grooves, and the cylindrical grooves extend into the inside of the lithium battery mounting box housing (1). The surface of the fixing plate (4) has multiple rectangular grooves, and two cooling fans (7) are fixedly installed on the surface of the fixing plate (4). The interiors of the two lithium battery pack limiting brackets (8) are respectively fixedly connected with multiple wave-shaped heat sinks (15). The surfaces of the four connecting brackets (9) are provided with multiple second through holes (13).

4. The lithium battery assembly of claim 1, wherein: The upper end of the lithium battery mounting box housing (1) is provided with a box cover (3), and the lower end of the box cover (3) is provided with four connecting blocks (16), which are slidably connected to the corresponding sliding grooves (11). The cover (3) is fixed to the lithium battery mounting box housing (1) by fixing bolts on both sides.

5. A lithium battery assembly for easy maintenance according to claim 4, wherein: The upper end of the box cover (3) is hinged with a handle (18). The inner fixed connection of the box cover (3) is a second rubber pad (17).

6. The easily accessible lithium battery assembly of claim 1, wherein: Two limiting rings (2) are fixedly connected to the surface of the lithium battery mounting box housing (1).

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