Battery pack with stable structure

Abstract

The utility model relates to the technical field of battery packs, and particularly discloses a battery pack with a stable structure, which comprises a shell, a plurality of battery units are arranged on the inner wall of the shell, a wire is connected in series on the surfaces of the plurality of battery units, one end of the wire is electrically connected with a connector, and a limiting structure is arranged on the surface of the shell. The limiting structure comprises two cylinders, the two cylinders are fixedly connected with the two sides of the shell respectively, the surfaces of the two cylinders are sleeved with a frame, the side, close to the battery units, of the frame is fixedly connected with a pressing plate, the arc face of each cylinder is fixedly connected with a threaded sleeve, the surface of each threaded sleeve is in threaded connection with a nut, and the nut is fixedly connected with the shell. Two limiting arms are fixedly connected to the surface of the frame, limiting plates are fixedly connected to the two sides of the shell, and an insulating pad is fixedly connected to the side, close to the battery unit, of the pressing plate. According to the utility model, the problem that the limiting stability of the battery unit cannot be effectively maintained is solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to battery pack technical field especially relates to a kind of structural stable battery pack. BACKGROUND

[0002] Battery pack is the module combined by multiple battery units, for storing electric energy and power supply device, battery pack is common in electric vehicle, energy storage system, portable electronic device and other applications, it connects multiple battery units in parallel or series to provide required voltage and capacity.

[0003] The above and prior art have the following defects: the battery unit in the existing battery pack is usually placed in the shell, and then sponge pad and other articles are filled into the gap to limit the battery unit, the sponge pad and other materials may be compressed or aged after long time use, resulting in reduced supporting capacity, which cannot effectively maintain the position of the battery unit, so that displacement or shaking of the battery unit may occur.

[0004] Therefore, a kind of structural stable battery pack is proposed. INVENTION CONTENTS

[0005] The utility model aims at solving the shortcoming of not effectively maintaining the stable position of battery unit, and proposes a kind of structural stable battery pack.

[0006] In order to achieve the above purpose, the utility model adopts the following technical scheme: a kind of structural stable battery pack, including shell, the inner wall of the shell is placed with several battery units, the surface of several battery units is connected with electric wire in series, one end of the electric wire is electrically connected with connector, the surface of the shell is equipped with limiting structure, the limiting structure includes two cylinders, two The two cylinders are fixedly connected with the two sides of shell respectively, the surface of two cylinders is sleeved with frame, the side of frame close to battery unit is fixedly connected with pressing plate, the arc surface of cylinder is fixedly connected with threaded sleeve, the surface of threaded sleeve is threadedly connected with nut.

[0007] The effect of the above components is that by setting the limiting structure, the battery unit can be stably positioned in the shell, so as to avoid the situation that the battery unit shakes or deviates in the shell, causing the electric wire to fall off, thereby ensuring the stability of the battery pack during use.

[0008] Preferably, the surface of the frame is fixedly connected with two limiting arms, and the two sides of the shell are fixedly connected with limiting plates.

[0009] The effect of the above components is that when the frame moves, the limiting arm will slide along the surface of the limiting plate, the limiting plate limits the movement path of the limiting arm, and the movement path of the pressing plate is limited, so as to facilitate the positioning of the position of the pressing plate.

[0010] Preferably, the side close to the battery cell of the pressing plate is fixedly connected with an insulating pad, and the insulating pad is made of rubber.

[0011] The insulating pad is tightly pressed on the surface of the battery cell, the insulating pad can effectively prevent the accidental release of current, reduce the risk of electric shock, and protect the staff and the battery cell.

[0012] Preferably, the surface of the insulating pad and the pressing plate is provided with a heat dissipation hole, and the end away from the shell of the cylinder is fixedly connected with a baffle.

[0013] The heat dissipation hole improves the heat dissipation effect when the battery cell is limited, the nut is separated from the contact with the frame and is attached to the surface of the baffle, and the baffle limits the movement distance of the nut, thereby avoiding the nut from being detached from the threaded sleeve.

[0014] Preferably, the surface of the shell is provided with a protection structure, the protection structure comprises a protection box, the protection box is fixedly connected with the surface of the shell, the surface of the protection box is fixedly connected with a support, the surface of the support is slidably penetrated with a bolt, the surface of the protection box is slidably connected with a cover plate, the surface of the cover plate is provided with a circular hole, and the size of the bolt is matched with the size of the circular hole.

[0015] The protection structure is arranged, the connector can be placed in the protection box, and the connector is prevented from being damaged due to external impact.

[0016] Preferably, the arc surface of the bolt is sleeved with a spring, and the two ends of the spring are fixedly connected with the bolt and the support.

[0017] The bolt is inserted into the circular hole by the contraction force of the spring, the spring improves the stability of the bolt inserted into the circular hole, and the bolt is prevented from being detached from the circular hole due to shaking.

[0018] Preferably, the surface of the shell is fixedly connected with a U-shaped plate.

[0019] When the cover plate moves, the cover plate slides along the surface of the U-shaped plate, the U-shaped plate limits the movement path of the cover plate, and the cover plate is prevented from being deflected.

[0020] Compared with the prior art, the utility model has the advantages and positive effects that,

[0021] 1、The utility model discloses a limiting structure is set up, reaches with the battery unit is put into the shell in turn, presses the frame to the direction close to the battery unit, and the frame will drive the pressing plate to move to the direction close to the battery unit, when the pressing plate moves to the appropriate position, and the pressing plate will be tightly extruded on the surface of the battery unit, then rotates the nut to the opposite direction, and the nut rotation will move to the direction close to the frame with the help of the thread, until the nut abuts at the surface of the frame, and the nut reaches the position of limiting the frame, and then the position of the battery unit is limited, thereby stably limiting the battery unit in the shell, avoid the battery unit to shake or shift in the shell and lead to the condition that the wire falls off, and then the stability when using the battery pack is guaranteed.

[0022] 2、The utility model discloses a protection structure is set up, reaches the connecting head with the plug is connected, then the connecting head after connecting is put into the protection box, the connecting head and external plug are located in the protection box at this moment, and the wire will be clamped into the recess on the both sides of the protection box, then pulls the bolt, and the bolt movement will slide in the support, when the bolt moves to the appropriate position, then the cover plate is placed to the top of the protection box, and presses the cover plate, when the cover plate moves to the appropriate position, and the cover plate will cover at the box mouth of the protection box, then presses the bolt, and the bolt will be inserted into the round hole, and the bolt reaches the position of limiting the cover plate, thereby placing the connecting head in the protection box, avoid the connecting head to be exposed to the action of damage from the impact. DRAWINGS

[0023] Figure 1 It is the whole structure schematic diagram of the utility model;

[0024] Figure 2 It is the structure schematic diagram of another angle of the utility model;

[0025] Figure 3 It is the structure schematic diagram of the limiting structure of the utility model;

[0026] Figure 4 It is the local structure schematic diagram in the utility model Figure 3 ;

[0027] Figure 5 It is the structure schematic diagram of the protection structure of the utility model.

[0028] Legend: 1, shell, 2, battery unit, 3, wire, 4, connecting head, 5, limiting structure, 501, cylinder, 502, frame, 503, pressing plate, 504, threaded sleeve, 505, nut, 506, limiting arm, 507, limiting plate, 508, insulating pad, 509, heat dissipation hole, 510, baffle, 6, protection structure, 61, protection box, 62, support, 63, bolt, 64, cover plate, 65, round hole, 66, spring, 67, U-shaped plate. DETAILED DESCRIPTION

[0029] In order to enable the above-mentioned purposes, features and advantages of the present application to be more clearly understood, the present application will be further described below with reference to the drawings and embodiments. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

[0030] In the following description, many specific details are set forth in order to provide a thorough understanding of the present application, however, the present application can also be implemented in other ways different from those described herein, therefore, the present application is not limited to the specific embodiments disclosed in the following description.

[0031] As shown in Figure 1 - Figure 5 The utility model provides a kind of stable structure battery pack, including shell 1, the inner wall of shell 1 is placed with several battery units 2, the surface of several battery units 2 is connected with electric wire 3 in series, and the one end of electric wire 3 is electrically connected with connector 4, and the surface of shell 1 is equipped with limiting structure 5, by setting limiting structure 5, reach the stable limiting of battery unit 2 in shell 1 is facilitated, to avoid battery unit 2 in shell 1 swing or offset causes the situation that electric wire 3 falls off occurs, to further guarantee the stability when battery pack is used.

[0032] The specific setting and effect of its limiting structure 5 and protective structure 6 will be described below.

[0033] As shown in Figure 2 and Figure 3 with Figure 4As shown, the limiting structure 5 includes two cylinders 501, which are respectively fixedly connected with two sides of the shell 1, the surface of the two cylinders 501 is sleeved with a frame 502, the side close to the battery unit 2 of the frame 502 is fixedly connected with a pressing plate 503, the arc surface of the cylinder 501 is fixedly connected with a threaded sleeve 504, and the surface of the threaded sleeve 504 is threadedly connected with a nut 505. The surface of the frame 502 is fixedly connected with two limiting arms 506, and both sides of the shell 1 are fixedly connected with limiting plates 507. When the frame 502 moves, the limiting arms 506 will be simultaneously driven to slide along the surface of the limiting plate 507, the limiting plate 507 reaches the movement path of the limiting arm 506, thereby limiting the movement path of the pressing plate 503, so as to facilitate positioning the position of the moving pressing plate 503. The side close to the battery unit 2 of the pressing plate 503 is fixedly connected with an insulating pad 508, the insulating pad 508 is made of rubber material, the insulating pad 508 will be tightly extruded on the surface of the battery unit 2, the insulating pad 508 can effectively prevent the accidental release of current, reduce the risk of electric shock, and protect the staff and the battery unit 2. The surface of the insulating pad 508 and the pressing plate 503 is provided with a heat dissipation hole 509, and the end away from the shell 1 of the cylinder 501 is fixedly connected with a baffle 510. The heat dissipation hole 509 reaches the heat dissipation effect when limiting the battery unit 2, the nut 505 will be separated from the frame 502 and attached to the surface of the baffle 510, and the baffle 510 reaches the movement distance of the nut 505, thereby avoiding the effect of the nut 505 being separated from the threaded sleeve 504.

[0034] As shown in the figure, Figure 5 The protection structure 6 includes a protection box 61, which is fixedly connected with the surface of the shell 1, the surface of the protection box 61 is fixedly connected with a support 62, the surface of the support 62 is slidably penetrated by a bolt 63, and the surface of the protection box 61 is slidably connected with a cover plate 64. The surface of the cover plate 64 is provided with a circular hole 65, and the size of the bolt 63 is matched with the size of the circular hole 65. The arc surface of the bolt 63 is sleeved with a spring 66, the two ends of the spring 66 are respectively fixedly connected with the bolt 63 and the support 62, the bolt 63 will be inserted into the circular hole 65 by the contraction force of the spring 66, and the spring 66 reaches the stability of the bolt 63 inserted into the circular hole 65, thereby avoiding the effect that the bolt 63 is separated from the circular hole 65 due to shaking. The surface of the shell 1 is fixedly connected with a U-shaped plate 67, the cover plate 64 will slide along the surface of the U-shaped plate 67 when moving, and the U-shaped plate 67 reaches the movement path of the cover plate 64, thereby avoiding the effect that the cover plate 64 is deflected.

[0035] The working principle of the whole is that when the battery unit 2 needs to be stably installed in the shell 1, first put the battery unit 2 into the shell 1 in turn, then use the wire 3 to connect several battery units 2 in series, then rotate the nut 505, the nut 505 rotates and moves on the surface of the threaded sleeve 504 by means of the thread, the nut 505 moves away from the frame 502, when the nut 505 moves to the appropriate position, the nut 505 is separated from the frame 502 and is attached to the surface of the baffle 510, the baffle 510 limits the movement distance of the nut 505, thereby avoiding the nut 505 from the threaded sleeve 504, then rotate the frame 502, the frame 502 rotates and drives the pressing plate 503 to rotate, the frame 502 rotates and drives the limiting arm 506 to slide along the surface of the limiting plate 507, when the frame 502 rotates to the appropriate position, press the frame 502 towards the battery unit 2, the frame 502 drives the pressing plate 503 to move towards the battery unit 2, the frame 502 moves and drives the limiting arm 506 to slide along the surface of the limiting plate 507, the limiting plate 507 limits the movement path of the limiting arm 506, thereby limiting the movement path of the pressing plate 503, so as to facilitate positioning the position of the moving pressing plate 503, the pressing plate 503 moves and drives the insulating pad 508 to move, when the pressing plate 503 moves to the appropriate position, the insulating pad 508 is tightly pressed on the surface of the battery unit 2, then rotate the nut 505 in the opposite direction, the nut 505 rotates and moves towards the frame 502 by means of the thread, until the nut 505 abuts against the surface of the frame 502, the nut 505 limits the position of the frame 502, thereby limiting the position of the battery unit 2, so as to stably limit the battery unit 2 in the shell 1.

[0036] When the connector 4 needs to be protected, first, the connector 4 is connected with the external plug, then the connected connector 4 is placed in the protection box 61, at this time the connector 4 and the external plug are in the protection box 61, the wire 3 will be clamped into the groove on both sides of the protection box 61, then the latch 63 is pulled, the latch 63 moves and slides in the bracket 62, the latch 63 pulls the spring 66 when moving, when the latch 63 moves to the appropriate position, the spring 66 is in the stretched state, then the cover plate 64 is placed above the protection box 61, the cover plate 64 is pressed, the cover plate 64 is inserted into the U-shaped plate 67, the cover plate 64 slides along the surface of the U-shaped plate 67 when moving, the U-shaped plate 67 limits the movement path of the cover plate 64, avoiding the cover plate 64 from being deflected, when the cover plate 64 moves to the appropriate position, the cover plate 64 covers the box opening of the protection box 61, then the latch 63 is released, the latch 63 is inserted into the round hole 65 by the contraction force of the spring 66, the spring 66 improves the stability of the latch 63 inserted into the round hole 65, avoiding the latch 63 from being shaken out of the round hole 65, the latch 63 limits the position of the cover plate 64, thereby placing the connector 4 in the protection box 61, avoiding the connector 4 from being exposed to impact and damaged.

[0037] The above is only a preferred embodiment of the present application, and is not intended to limit the present application in other forms. Any skilled person in the art can modify or change the above disclosed technical content to equivalent embodiments applied to other fields, but any simple modification, equivalent change and modification of the above embodiments according to the technical essence of the present application still belong to the protection scope of the present application.

Claims

1. A structurally stable battery pack, comprising a housing (1), wherein a plurality of battery cells (2) are placed on the inner wall of the housing (1), and wires (3) are connected in series on the surfaces of the plurality of battery cells (2), one end of each wire (3) being electrically connected to a connector (4), and a limiting structure (5) is provided on the surface of the housing (1), characterized in that: The limiting structure (5) includes two cylinders (501), two said cylinders (501) are fixedly connected with two sides of the shell (1) respectively, the surfaces of two said cylinders (501) are sleeved with frames (502), one side of the frame (502) close to the battery unit (2) is fixedly connected with a pressing plate (503), the arc surfaces of the cylinder (501) are fixedly connected with threaded sleeves (504), the surfaces of the threaded sleeves (504) are threadedly connected with nuts (505).

2. The structurally stable battery pack of claim 1, wherein: The surface of the frame (502) is fixedly connected with two limiting arms (506), both sides of the shell (1) are fixedly connected with limiting plates (507).

3. The structurally stable battery pack of claim 1, wherein: One side of the pressing plate (503) close to the battery unit (2) is fixedly connected with an insulating pad (508), the insulating pad (508) is made of rubber material.

4. The structurally stable battery pack of claim 3, wherein: The surfaces of the insulating pad (508) and the pressing plate (503) are both provided with heat dissipation holes (509), one end of the cylinder (501) away from the shell (1) is fixedly connected with a baffle (510).

5. The structurally stable battery pack of claim 1, wherein: The surface of the shell (1) is provided with a protection structure (6), the protection structure (6) includes a protection box (61), the protection box (61) is fixedly connected with the surface of the shell (1), the surface of the protection box (61) is fixedly connected with a support (62), the surface of the support (62) is slidingly penetrated by a bolt (63), the surface of the protection box (61) is slidingly connected with a cover plate (64), the surface of the cover plate (64) is provided with a circular hole (65), the size of the bolt (63) is matched with the size of the circular hole (65).

6. The structurally stable battery pack of claim 5, wherein: The arc surface of the bolt (63) is sleeved with a spring (66), both ends of the spring (66) are fixedly connected with the bolt (63) and the support (62) respectively.

7. The structurally stable battery pack of claim 5, wherein: The surface of the shell (1) is fixedly connected with a U-shaped plate (67).

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