Bottom connecting structure of cylindrical lithium battery

Abstract

The utility model relates to the technical field of battery bottom connection, in particular to a bottom connection structure of a cylindrical lithium battery, which comprises a bottom protection shell, a fixed bottom plate is fixedly connected to the bottom of an inner cavity of the bottom protection shell, and a plurality of fixed bins are fixedly connected to the top of the fixed bottom plate. Cavity connecting rods are fixedly connected to inner cavities in the middles of the multiple fixed bins, sliding bins are slidably connected to the upper ends of the cavity connecting rods, and first springs are jointly and fixedly connected to the opposite inner cavities of the fixed bins and the sliding bins. The device has the advantages of damping and convenience in dismounting and replacing the battery, the second spring, the placing block and the battery are matched for use, and the elastic effect of the second spring is utilized, so that the impact of external vibration on the battery can be effectively relieved in the use process, and the damage of vibration to internal elements of equipment is reduced, so that sensitive components are protected, and the service life of the device is prolonged. The service life of the battery is prolonged.

Description

TECHNICAL FIELD

[0001] The utility model relates to battery bottom connection technical field, concretely is bottom connection structure of cylindrical lithium battery. BACKGROUND

[0002] As the current widely used battery form, cylindrical lithium battery is widely used in portable electronic devices, electric tools, electric vehicles and many other fields, and its bottom connection structure plays a crucial role in the safety, stability, service life and production efficiency of the battery. In order to improve the overall performance of the battery and enhance the impact resistance and compression resistance of the battery bottom, not only can the safety of the battery be improved, the risk of failure caused by external impact or accidental compression can be reduced, but also the service life of the battery can be effectively prolonged.

[0003] At present, most cylindrical lithium batteries have certain deficiencies in the bottom damping structure, which leads to unsatisfactory damping effect, making the battery vulnerable to large impact and vibration during handling and transportation, thereby increasing the risk of battery damage. In the environment of long-time transportation or frequent operation, the internal components of the battery may be greatly affected, thereby affecting the safety, performance and service life of the battery. UTILITY MODEL CONTENT

[0004] The utility model aims at providing a bottom connection structure of cylindrical lithium battery, which has the advantages of shock absorption and convenient disassembly and replacement of the battery, and solves the problems raised in the above background technology.

[0005] To achieve the above purpose, the utility model provides the following technical scheme: a bottom connection structure of cylindrical lithium battery, comprising a bottom protection shell, a fixed bottom plate is fixedly connected to the bottom of the inner cavity of the bottom protection shell, a plurality of fixed warehouses are fixedly connected to the top of the fixed bottom plate, a cavity connecting rod is fixedly connected to the inner cavity of the middle position of each of the plurality of fixed warehouses, a sliding warehouse is slidably connected to the upper end of the cavity connecting rod, and a first spring is fixedly connected to the inner cavities opposite to each other of the fixed warehouse and the sliding warehouse, a second spring is fixedly connected to the bottom of the inner cavity of the cavity connecting rod, a placing block is fixedly connected to the top end of the second spring and slidably connected to the inner cavity of the cavity connecting rod, a fixed rod is fixedly connected to the top of the placing block, a sliding limiting block is slidably connected to the surface of the fixed rod, and the sliding limiting block is in contact with the bottom of the inner cavity of the placing block, a fixed block is fixedly connected to the top of the fixed rod, a battery is arranged on the top of the fixed block, and a gap is arranged between the placing block and the battery, a plurality of first grooves are arranged in the inner cavity of the bottom of the battery, a third spring is fixedly connected to the inner cavity of each of the plurality of first grooves, a clamping block is fixedly connected to the other end of the third spring, and the clamping block is arranged between the sliding limiting block and the fixed block.

[0006] Further, as a preferred, the bottom protection shell inner cavity is provided with a plurality of second grooves on both sides, the inner cavity of the plurality of second grooves is fixedly connected with fourth springs, the other end of the fourth spring is fixedly connected with a sliding rod, and the other end of the sliding rod is fixedly connected with a clamping plate.

[0007] Further, as a preferred, the surface of the clamping plate is provided with anti-skid lines.

[0008] Further, as a preferred, the top of the sliding bin is fixedly connected with an annular block, and the annular block is slidably connected to the surface of the bottom protection shell inner cavity.

[0009] Further, as a preferred, the bottom protection shell is provided with a ventilation and heat dissipation slot on both sides.

[0010] The technical scheme has the following technical effects: the utility model has the advantages of shock absorption and convenient battery disassembly and replacement, the cooperation of the second spring, the placement block and the battery utilizes the elastic effect of the second spring, effectively reduces the impact of external vibration on the battery during use, reduces the damage of vibration to internal elements of the equipment, thereby protecting sensitive components and prolonging the service life of the battery, the cooperation of the fixed rod, the sliding limiting block, the fixed block, the battery, the third spring and the clamping block enables the user to press the battery, the cooperation of the third spring and the clamping block under the elastic effect of the third spring enables the clamping block to be easily clamped between the sliding limiting block and the fixed block, thereby completing the fixed installation of the battery, ensuring the firm fixing of the battery, making the installation process simple and fast, and not needing additional tools or complex operation, facilitating the user to disassemble and replace the battery, and improving the use convenience.

[0011] It should be understood that all combinations of the aforementioned concepts and additional concepts described in greater detail below can be seen as part of the utility model subject matter of the present disclosure, as long as such concepts are not mutually contradictory. BRIEF DESCRIPTION OF DRAWINGS

[0012] The accompanying drawings are included to provide a further understanding of the utility model, and constitute a part of the specification, which are used to explain the utility model together with embodiments of the utility model, and do not constitute a limitation to the utility model. In the drawings:

[0013] Figure 1 It is a whole structure schematic view of the utility model;

[0014] Figure 2 It is an internal structure schematic view of the utility model device;

[0015] Figure 3The utility model discloses device bottom outside spring structure schematic drawing shows,

[0016] Figure 4 The utility model discloses device bottom connecting structure schematic Figure 1 ;

[0017] Figure 5 The utility model discloses device bottom connecting structure schematic Figure 2 ;

[0018] Figure 6 The utility model discloses device battery bottom connecting structure schematic drawing shows,

[0019] Figure 7 The utility model discloses device inner chamber clamping structure schematic drawing.

[0020] In the drawing, the meaning of each reference sign is as follows: 1, bottom protection shell; 2, fixed bottom plate; 3, fixed bin; 4, cavity connecting rod; 5, sliding bin; 6, first spring; 7, second spring; 8, placing block; 9, fixed rod; 10, sliding limit block; 11, fixed block; 12, battery; 13, third spring; 14, clamping block; 15, fourth spring; 16, sliding rod; 17, clamping plate; 18, annular block. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the utility model will be described clearly and completely below with reference to the drawings in the embodiments of the utility model. In order to understand the technical contents of the utility model more clearly, specific embodiments are shown and explained below with reference to the drawings. In the present disclosure, various aspects of the utility model are described with reference to the drawings, and many embodiments of the description are shown in the drawings. It should be understood that the various concepts and embodiments introduced above, and those concepts and embodiments described in more detail below can be implemented in any one of many ways. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the utility model.

[0022] As shown in the drawings, Figure 1 to the drawings, Figure 7The embodiment provides a bottom connecting structure of a cylindrical lithium battery, which comprises a bottom protective shell 1, a fixed bottom plate 2 fixedly connected to the bottom of the inner cavity of the bottom protective shell 1, a plurality of fixed warehouses 3 fixedly connected to the top of the fixed bottom plate 2, cavity connecting rods 4 fixedly connected to the inner cavities of the middle positions of the plurality of fixed warehouses 3, sliding warehouses 5 slidingly connected to the upper ends of the cavity connecting rods 4, first springs 6 fixedly connected to the inner cavities opposite to the fixed warehouses 3 and the sliding warehouses 5, second springs 7 fixedly connected to the bottoms of the inner cavities of the cavity connecting rods 4, placement blocks 8 slidingly connected to the inner cavities of the cavity connecting rods 4 and fixedly connected to the top ends of the second springs 7, fixed rods 9 fixedly connected to the top of the placement blocks 8, sliding limiting blocks 10 slidingly connected to the surfaces of the fixed rods 9 and in contact with the bottoms of the inner cavities of the placement blocks 8, fixed blocks 11 fixedly connected to the top of the fixed rods 9, batteries 12 arranged on the top of the fixed blocks 11 and provided with gaps between the batteries 12 and the placement blocks 8, a plurality of first recesses formed in the inner cavities of the batteries 12, third springs 13 fixedly connected to the inner cavities of the plurality of first recesses, clamping blocks 14 fixedly connected to the other ends of the third springs 13 and arranged between the sliding limiting blocks 10 and the fixed blocks 11.

[0023] Specifically, a plurality of second recesses are formed in the inner cavities of the two sides of the bottom protective shell 1, fourth springs 15 are fixedly connected to the inner cavities of the plurality of second recesses, sliding rods 16 are fixedly connected to the other ends of the fourth springs 15, and clamping plates 17 are fixedly connected to the other ends of the sliding rods 16.

[0024] In the embodiment, the cooperation of the fourth springs 15, the sliding rods 16 and the clamping plates 17 can effectively realize the clamping of the batteries 12, prevent the batteries 12 from shaking during use, and, when the batteries 12 slightly swell, the fourth springs 15 can be appropriately compressed according to the swelling degree, so that the clamping force of the fourth springs 15 on the batteries 12 is not too rigid or fixed, the batteries 12 are prevented from being damaged due to excessive clamping, pressure relief is achieved, and a certain protection effect is achieved.

[0025] Specifically, the surface of the clamping plate 17 is provided with anti-skid lines.

[0026] In the embodiment, the arrangement of the anti-skid lines can effectively prevent the batteries 12 from moving during use and transportation, reduce the risk of sliding and displacement, and prevent damage caused by accidental movement.

[0027] Specifically, the top of the sliding warehouse 5 is fixedly connected with an annular block 18, and the annular block 18 is slidingly connected to the surface of the inner cavity of the bottom protective shell 1.

[0028] In the embodiment: through the setting of the annular block 18, the main role is to firmly fix together several sliding warehouses 5, the annular block 18 can drive the sliding warehouse 5 to swing together, ensure that the movement frequency between the sliding warehouse 5 remains consistent, thereby optimizing the damping effect.

[0029] Specifically, the bottom protection shell 1 is provided with ventilation and heat dissipation slots on both sides.

[0030] In the embodiment: through the setting of the ventilation and heat dissipation slots, the air flow in the bottom cavity of the device can be effectively improved, the heat dissipation is promoted, and the temperature of the bottom of the device can be effectively controlled to prevent safety hazards caused by overheating and avoid the risk of explosion of the battery 12 at the bottom due to high temperature.

[0031] The utility model discloses a working principle and use flow: the user places battery 12 in the inner chamber of placing block 8, and the first recess is set in the inner chamber of the bottom of battery 12, the inner chamber of first recess is fixedly connected with third spring 13, and the other end of third spring 13 is fixedly connected with clamping block 14, by pressing battery 12, clamping block 14 is under extrusion state, will compress third spring 13, then under the cooperation of fixed block 11 and clamping block 14 and the action of gravity, sliding limit block 10 falls in the top of placing block 8, clamping block 14 can be accurately clamped between fixed block 11 and sliding limit block 10, at this moment, battery 12 is fixed in the device stably, ensures that it does not move in the use process, when needing to disassemble battery 12, just press battery 12 again, make clamping block 14 move downwards, with the elastic action of third spring 13, clamping block 14 will extrude in the first recess inner chamber, finally contact with sliding limit block 10, then clamping block 14 drives sliding limit block 10 to slide on the surface of fixed rod 9 simultaneously, when sliding limit block 10 slides to the bottom of fixed block 11, clamping block 14 can slide out from the edge of fixed block 11, at this moment, battery 12 can be taken out easily, when battery 12 installs and is in the use state, and battery 12 is in the carrying process, the bottom of placing block 8 is fixedly connected with second spring 7, second spring 7 is fixedly connected in the inner chamber of cavity connecting rod 4, under the elastic action of second spring 7, effectively provide shock absorption protection for battery 12, prevent the explosion and other security risks caused by violent vibration or impact, reduce possible damage risk, to ensure that battery 12 is more stable during transportation and use, the inner chamber surface of bottom protection shell 1 is provided with second recess, the inner chamber of second recess is fixedly connected with fourth spring 15, the other end of fourth spring 15 is fixedly connected with sliding rod 16, the other end of sliding rod 16 is fixedly connected with clamping plate 17, the antiskid line of clamping plate 17 further increases friction, under the elastic action of sliding bin 5 and the cooperation of clamping plate 17, battery 12 can be clamped so that battery 12 is not easy to shake during the whole transportation and use, avoid the damage caused by instability, to enhance the heat dissipation performance, the both sides of bottom protection shell 1 are provided with ventilation and heat dissipation slot, promote air flow, help battery 12 to dissipate heat more effectively during use, prevent overheating problem, improve equipment safety, the inner chamber of the bottom of the device is provided with fixed bin 3, cavity connecting rod 4, sliding bin 5 and first spring 6, the cooperation of four can simultaneously shock absorption treatment to the bottom of the device, and the top of several sliding bins 5 is jointly fixedly connected with annular block 18, annular block 18 is mainly used for fixing sliding bin 5, the main role of fixed bin 3, cavity connecting rod 4, sliding bin 5, first spring 6 and annular block 18 is that when the device appears heavy impact, under the elastic action of first spring 6, the bottom of the device is damped, second spring 7 provides damping effect for battery 12, further through the cooperation of fixed bin 3, cavity connecting rod 4, sliding bin 5 and first spring 6,The bottom of the device is additionally damped, thereby significantly enhancing the stability and safety of the entire device, avoiding potential risks caused by vibration, and ensuring the reliability and durability of the device during use.

[0032] It should be noted that, in this text, relational terms such as first and second are used only to distinguish one entity or operation from another, and do not necessarily require or imply that there is any such actual relationship or order between these entities or operations.

[0033] Although the utility model has disclosed as above with preferred embodiments, it is not used to limit the utility model. Those skilled in the art of the utility model can make various changes and decorations without departing from the spirit and scope of the utility model. Therefore, the protection scope of the utility model shall be subject to the definition of the claims.

Claims

1. A bottom connection structure of a cylindrical lithium battery comprising a bottom protective case (1), characterized in that: The bottom of the inner cavity of the bottom protective shell (1) is fixedly connected with a fixed bottom plate (2), the top of the fixed bottom plate (2) is fixedly connected with a plurality of fixed warehouses (3), the inner cavities of the middle positions of the plurality of fixed warehouses (3) are fixedly connected with cavity connecting rods (4), the upper ends of the cavity connecting rods (4) are slidably connected with sliding warehouses (5), and the inner cavities of the fixed warehouses (3) and the sliding warehouses (5) are fixedly connected with first springs (6) in common, the inner cavities of the cavity connecting rods (4) are fixedly connected with second springs (7) at the bottom, the top ends of the second springs (7) are fixedly connected with placing blocks (8), the placing blocks (8) are slidably connected in the inner cavities of the cavity connecting rods (4), the top of the placing block (8) is fixedly connected with a fixed rod (9), the surface of the fixed rod (9) is slidably connected with a sliding limiting block (10), the sliding limiting block (10) is in contact with the bottom of the inner cavity of the placing block (8), the top of the fixed rod (9) is fixedly connected with a fixed block (11), the top of the fixed block (11) is provided with a battery (12), a gap is arranged between the placing block (8) and the battery (12), a plurality of first grooves are formed in the inner cavity of the bottom of the battery (12), the inner cavities of the plurality of first grooves are fixedly connected with third springs (13), the other ends of the third springs (13) are fixedly connected with clamping blocks (14), and the clamping blocks (14) are arranged between the sliding limiting block (10) and the fixed block (11).

2. The bottom connection structure of a cylindrical lithium battery according to claim 1, characterized in that: The inner cavities of the two sides of the bottom protective shell (1) are provided with a plurality of second grooves, the inner cavities of the plurality of second grooves are fixedly connected with fourth springs (15), the other ends of the fourth springs (15) are fixedly connected with sliding rods (16), and the other ends of the sliding rods (16) are fixedly connected with clamping plates (17).

3. The bottom connection structure of a cylindrical lithium battery according to claim 2, characterized in that: The surface of the clamping plate (17) is provided with anti-skid lines.

4. The bottom connection structure of a cylindrical lithium battery according to claim 1, wherein: The top of the sliding warehouse (5) is fixedly connected with an annular block (18), and the annular block (18) is slidably connected to the surface of the inner cavity of the bottom protective shell (1).

5. The bottom connection structure of a cylindrical lithium battery according to claim 1, wherein: Ventilating and heat dissipation grooves are formed in the two sides of the bottom protective shell (1).

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