Combined small lithium battery

Abstract

This utility model discloses a combined small lithium battery, relating to the technical field of lithium batteries. It solves the problem that lithium battery installation requires placing each battery individually, leading to slow installation and removal speeds and reduced efficiency when installing and removing multiple batteries. The battery includes a housing and limiting plates. The limiting plates are evenly spaced inside the housing, and multiple connecting rods are evenly spaced between adjacent limiting plates. Multiple tension springs are evenly spaced between the bottom of the limiting plates and the bottom surface inside the housing, and lithium batteries are placed between adjacent limiting plates. The lithium batteries are respectively placed on the upper ends of the connecting rods. Through the cooperation between the sealing cap and the tension springs, when the end cap is opened, the elastic force of the multiple tension springs pushes the limiting plates upwards, effectively moving the springs between adjacent limiting plates upwards, facilitating installation and removal.

Description

Technical Field

[0001] This utility model relates to the technical field of lithium batteries, specifically a combined small lithium battery. Background Technology

[0002] A modular small lithium battery is a battery system that combines multiple small lithium battery cells in a specific way to meet the requirements of different application scenarios for power, voltage, and other parameters.

[0003] A search revealed Chinese patent publication number CN210866316U, which discloses a combined small lithium battery. The battery includes a battery frame with first U-shaped rails evenly distributed at the bottom inner side and second U-shaped rails evenly spaced at the top inner side, corresponding to the first U-shaped rails. A lithium battery block is engaged between the second and first U-shaped rails. A partition is vertically fixed between the lithium battery blocks, and a heat dissipation cavity is provided between the partition and the lithium battery blocks. A fixing plate is installed on one side of the battery frame. This combined small lithium battery uses a first and second slider to engage the lithium battery blocks between the first and second U-shaped rails inside the battery frame until the electrode contacts at one end of the lithium battery block abut against the electrode groove. This allows multiple lithium battery blocks to be connected in series for centralized power supply. After closing the sealing cover, a positioning block is fixed to one end of the battery frame using a hand-tightened bolt. At this point, the buffer pad and shock-absorbing pad are in close contact, making the lithium battery less susceptible to damage during vibration and bumps.

[0004] However, the lithium battery needs to be installed one by one, which slows down the installation and removal process when installing and removing multiple lithium batteries, thus reducing the efficiency of lithium battery installation and removal. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a modular small lithium battery, which solves the problem that when installing lithium batteries, each lithium battery needs to be placed individually, resulting in a slow installation and removal rate and reduced efficiency when installing and removing multiple lithium batteries.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a combined small lithium battery, comprising a housing and limiting plates, wherein the limiting plates are equally spaced inside the housing, and multiple connecting rods are fixedly installed at equal intervals between adjacent limiting plates, and multiple tension springs are fixedly installed at equal intervals between the bottom of the limiting plates and the bottom surface inside the housing, and lithium batteries are placed between adjacent limiting plates, with the lithium batteries respectively placed at the upper ends of the connecting rods, an opening being opened at the upper end of the housing, and a sealing cover being provided at the upper end of the housing, the sealing cover being fastened to the upper end of the housing by bolts.

[0007] Preferably, multiple locking blocks are symmetrically fixedly installed at equal intervals on both ends of the bottom surface of the sealing cover. Each locking block has a locking groove inside its top surface. The locking blocks are slidably connected between two adjacent limiting plates, and the locking grooves are respectively locked on the outer side wall of the lithium battery, thereby facilitating the pushing of the lithium battery into the interior of the casing.

[0008] Preferably, multiple electrode plates are fixedly installed at equal intervals between the two end sidewalls inside the housing. The electrode plates are connected in series with each other. A terminal is fixedly installed on the sidewall of the housing. The terminal is electrically connected to the electrode plates. The electrode plates are respectively disposed between adjacent limiting plates and respectively attached to the two end electrodes of the lithium battery, thereby facilitating the series connection of the lithium batteries.

[0009] Preferably, multiple limiting rods are fixedly installed at equal intervals on the bottom surface inside the housing. The limiting rods are respectively disposed inside the tension spring, and the limiting plates are respectively slidably sleeved on the outside of the limiting rods, thereby facilitating the limiting of the limiting plates.

[0010] Preferably, multiple support blocks are fixedly installed at equal intervals on the bottom surface inside the housing, and the support blocks are respectively disposed between two adjacent limiting plates. When the top of the support block and the bottom of the connecting rod are in contact with each other, the electrodes on both sides of the lithium battery are respectively in contact with the electrode sheet, thereby facilitating the stable placement of the lithium battery.

[0011] Preferably, the length of the lithium battery is matched with the distance between two adjacent electrode plates, thereby facilitating the bonding of the two end electrodes of the lithium battery with the electrode plates.

[0012] This invention provides a combined small lithium battery. It has the following advantages: 1. This type of combined small lithium battery, when used, through the cooperation between the set sealing cover and the tension spring, can use the elastic force of multiple tension springs to push the limiting plate upward when the end cover is opened, which can effectively move the spring between adjacent limiting plates upward, making it convenient to install and disassemble. 2. In this type of combined small lithium battery, when using the combined small lithium battery, the cooperation between the set sealing cover and the locking block allows the sealing cover to press down on the limiting plate when it is connected to the housing, and the locking slots in the locking block are respectively locked on the outside of the lithium battery, which can facilitate the downward movement of the battery and make the electrodes at both ends of the battery fit together with the electrode plates. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a cross-sectional view of the casing of this utility model; Figure 3This is a schematic diagram of the sealing cap structure of this utility model.

[0014] In the diagram, 1 is the housing; 2 is the sealing cap; 3 is the terminal; 4 is the electrode plate; 5 is the limiting plate; 6 is the support block; 7 is the connecting rod; 8 is the lithium battery; 9 is the tension spring; 10 is the limiting rod; 11 is the locking block; and 12 is the locking slot. Detailed Implementation

[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0016] Please see Figure 1-3This utility model embodiment provides a combined small lithium battery, including a housing 1 and limiting plates 5. The limiting plates 5 are equally spaced inside the housing 1, and multiple connecting rods 7 are fixedly installed at equal intervals between adjacent limiting plates 5. Multiple tension springs 9 are fixedly installed at equal intervals between the bottom of the limiting plates 5 and the bottom surface inside the housing 1, and lithium batteries 8 are placed between adjacent limiting plates 5. The lithium batteries 8 are respectively placed on the upper ends of the connecting rods 7. An opening is opened at the upper end of the housing 1, and a sealing cover 2 is provided at the upper end of the housing 1. The sealing cover 2 is fastened to the upper end of the housing 1 by bolts. Multiple locking blocks are symmetrically fixedly installed at equal intervals on both ends of the bottom surface of the sealing cover 2. 11. Each of the top surfaces of the locking blocks 11 has a slot 12. The locking blocks 11 are slidably connected between two adjacent limiting plates 5, and the slots 12 are respectively locked onto the outer sidewalls of the lithium battery 8. Multiple electrode plates 4 are fixedly installed at equal intervals between the two end sidewalls inside the housing 1. The electrode plates 4 are connected in series. A terminal 3 is fixedly installed on the sidewall of the housing 1. The terminal 3 is electrically connected to the electrode plates 4. The electrode plates 4 are respectively arranged between adjacent limiting plates 5 and are respectively in contact with the two end electrodes of the lithium battery 8. Multiple limiting rods 10 are fixedly installed at equal intervals on the bottom surface inside the housing 1. The limiting rods 10 are respectively arranged inside the tension spring 9. The limiting plates 5 are respectively The sliding sleeve is attached to the outside of the limiting rod 10. Multiple support blocks 6 are fixedly installed at equal intervals on the bottom surface inside the housing 1. The support blocks 6 are respectively positioned between two adjacent limiting plates 5. When the top of the support block 6 is in contact with the bottom of the connecting rod 7, the electrodes on both sides of the lithium battery 8 are respectively attached to the electrode plates 4. The length of the lithium battery 8 matches the distance between two adjacent electrode plates 4. When placing the lithium battery 8, first remove the sealing cover 2. Under the action of the tension spring 9, the limiting plate 5 will be pushed upwards. Then, place the lithium battery 8 between two adjacent limiting plates 5, at the top of the connecting rod 7. Then, remove the sealing cover 2. During installation, the locking block 11 is inserted between two adjacent limiting plates 5, and the locking slot 12 is locked onto the lithium battery 8. At this time, the bottom of the sealing cover 2 is completely in contact with the top of the limiting plate 5. Pressing the sealing cover 2 downward can drive the limiting plate 5 to move downward until the connecting rod 7 is tightly in contact with the upper end of the support block 6. Then, the sealing cover 2 is fastened to the upper end of the housing 1 with bolts. At this time, the two electrodes of the lithium battery 8 are respectively in contact with the electrode plates 4 inside the housing 1. Conversely, when removing the lithium battery 8, the sealing cover 2 is opened, and the limiting plate 5 is pushed upward by the tension spring 9, which can easily remove the internal lithium battery 8.

[0017] It should be noted that, in this embodiment, as Figure 1-3As shown, when placing the lithium battery 8, first remove the sealing cover 2. Under the action of the tension spring 9, the limiting plate 5 will be pushed upward. Then, place the lithium battery 8 between two adjacent limiting plates 5 and at the upper end of the connecting rod 7. Then, install the sealing cover 2. Use the locking block 11 to enter between two adjacent limiting plates 5 and make the locking groove 12 lock onto the lithium battery 8. At this time, the bottom of the sealing cover 2 is completely in contact with the top of the limiting plate 5. Pressing the sealing cover 2 downward can drive the limiting plate 5 to move downward until the connecting rod 7 is tightly in contact with the upper end of the support block 6. Then, use bolts to firmly connect the sealing cover 2 to the upper end of the housing 1. At this time, the two electrodes of the lithium battery 8 are respectively in contact with the electrode plates 4 inside the housing 1. Conversely, when removing the lithium battery 8, open the sealing cover 2 and use the tension spring 9 to push the limiting plate 5 upward, so that the lithium battery 8 inside can be easily removed.

[0018] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. It will be apparent to those skilled in the art that this utility model is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects. The scope of this utility model is defined by the appended claims rather than the foregoing description, and thus all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this utility model. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0019] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A combined small lithium battery, characterized by: The device includes a housing (1) and a limiting plate (5). The limiting plates (5) are evenly spaced inside the housing (1), and multiple connecting rods (7) are fixedly installed at equal intervals between adjacent limiting plates (5). Multiple tension springs (9) are fixedly installed at equal intervals between the bottom of the limiting plate (5) and the bottom surface inside the housing (1). Lithium batteries (8) are placed between adjacent limiting plates (5). The lithium batteries (8) are placed at the upper end of the connecting rods (7). An opening is opened at the upper end of the housing (1), and a sealing cover (2) is provided at the upper end of the housing (1). The sealing cover (2) is fastened to the upper end of the housing (1) by bolts.

2. The combination small-sized lithium battery according to claim 1, wherein: Multiple locking blocks (11) are symmetrically fixed at equal intervals on both ends of the bottom surface of the sealing cover (2). Each locking block (11) has a slot (12) inside its top surface. The locking blocks (11) are slidably connected between two adjacent limiting plates (5), and the slots (12) are respectively locked on the outer sidewall of the lithium battery (8).

3. The combined small lithium battery according to claim 1, characterized in that: Multiple electrode plates (4) are fixedly installed at equal intervals between the two side walls inside the housing (1). The electrode plates (4) are connected in series. A terminal (3) is fixedly installed on the side wall of the housing (1). The terminal (3) is electrically connected to the electrode plate (4). The electrode plates (4) are respectively arranged between adjacent limiting plates (5) and respectively attached to the two electrodes of the lithium battery (8).

4. The combined small lithium battery according to claim 1, characterized in that: Multiple limiting rods (10) are fixedly installed at equal intervals on the bottom surface inside the housing (1). The limiting rods (10) are respectively located inside the tension spring (9), and the limiting plates (5) are respectively slidably sleeved on the outside of the limiting rods (10).

5. A combined small lithium battery according to claim 3, characterized in that: Multiple support blocks (6) are fixedly installed at equal intervals on the bottom surface inside the housing (1), and the support blocks (6) are respectively set between two adjacent limiting plates (5). When the top of the support block (6) and the bottom of the connecting rod (7) are in contact with each other, the electrodes on both sides of the lithium battery (8) are respectively in contact with the electrode sheet (4).

6. A combined small lithium battery according to claim 2, characterized in that: The length of the lithium battery (8) is matched with the distance between two adjacent electrode plates (4).

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