Battery pack with sealing function

Abstract

The utility model provides a battery pack with a sealing function, which relates to the technical field of battery packs and comprises a battery pack shell, a plurality of orderly arranged single batteries are mounted in the battery pack shell, a course change is mounted on the surface of the battery pack shell, and a sealing device is arranged in an assembly gap between the battery pack shell and a shell cover. The sealing device performs sealing protection on the battery pack shell and the shell cover by means of a sealing ring, the sealing device comprises a mounting ring, the mounting ring is arranged on the arc surface of the battery pack shell in a sleeving mode, positioning plates are installed at the four corners of the battery pack shell and the four corners of the shell cover respectively, and the two sides of the mounting ring abut against the positioning plates. When the battery pack disclosed by the utility model is normally assembled and used, a gap at the position of the shell cover can be better sealed and filled, external dust and impurities are not easy to enter to cause erosion and damage, the internal single batteries are better protected, and the using effect and the functionality of the shell are improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to battery pack technical field especially a battery pack with sealing function. BACKGROUND

[0002] Battery pack is the important part of energy storage industry, and the existing lithium ion battery and other batteries with large charge and discharge capacity density are seldom used alone, and are usually assembled into a battery pack with internal components accommodated in a frame body made of synthetic resin, and the battery pack is installed in a device using the battery.

[0003] The existing battery pack is arranged and combined in the inside of the battery pack shell in sequence when used, then the shell cover is connected and fixed with the battery pack shell, then the connecting point on the shell cover is connected with the corresponding electric device through the connecting wire, but it is found in actual use that the connection mode of the battery pack shell and the shell cover is modified into a reversible disassembly mode for the convenience of maintaining the components in the shell body such as the single battery, and the connection mode causes the gap between the battery pack shell and the shell cover, and the sealing performance is poor, which causes the entry of the external dust and impurities and affects the normal use of the battery pack. SUMMARY

[0004] The utility model solves the technical problem that the existing battery pack is modified into a reversible disassembly mode for the convenience of maintaining the components in the shell body such as the single battery, and the connection mode causes the gap between the battery pack shell and the shell cover, and the sealing performance is poor, which causes the entry of the external dust and impurities and affects the normal use of the battery pack.

[0005] The utility model adopts the technical scheme that a battery pack with sealing function, including battery pack shell, the inside of battery pack shell is installed with a plurality of single battery arranged in order, the surface of battery pack shell is installed with shell cover, and the assembly gap between the battery pack shell and the shell cover is provided with a sealing device, wherein the sealing device seals and protects the gap between the battery pack shell and the shell cover by means of the sealing ring.

[0006] The above-mentioned components achieve the effect that when the battery pack is installed and combined, a plurality of single batteries are arranged and combined in the inside of the battery pack shell in sequence, then the shell cover is connected and fixed with the battery pack shell, and the sealing device is assembled at the gap between the shell cover and the battery pack shell to seal and protect the gap position.

[0007] Preferably, the sealing device comprises a mounting ring, the mounting ring is sleeved on the arc surface of the battery pack shell, the four corners of the battery pack shell are respectively mounted on the positioning plates of the shell cover, and the two sides of the mounting ring abut against the positioning plates; an inner wall of the mounting ring is provided with a sealing ring, the sealing ring is a rubber ring; the four corners of the battery pack shell are respectively provided with arc-shaped plates, and the cross section of the arc-shaped plate is in the shape of 'U'; the two sides of the arc-shaped plate are respectively connected and fixed to the positioning plates on the battery pack shell and the shell cover through bolts.

[0008] The above components achieve the effect that when the battery pack is normally assembled and used, the gap at the position of the shell cover can be better sealed and filled, external dust and impurities are less likely to enter and cause corrosion and damage, the internal single battery cells are better protected, and the use effect and functionality of the shell are improved.

[0009] Preferably, the sealing device further comprises positioning columns on the surface of the mounting ring, and the positioning columns are inserted through the surface of the arc-shaped plate.

[0010] The above components achieve the effect that through the arrangement of the positioning columns, when the arc-shaped plate and the screw are installed and fixed, the positioning columns fixedly connected to the arc-shaped plate and the mounting ring are inserted with each other in advance, so that the position of the mounting ring is more stable and is less likely to be loose, and the position of the sealing ring is further ensured to be stable.

[0011] Preferably, the two sides of the sealing ring are respectively provided with protective rings, and the protective rings are silica gel rings.

[0012] The above components achieve the effect that through the arrangement of the protective rings, the gap between the battery pack shell and the shell cover is further shielded and protected, so that dust and impurities are less likely to enter, and the use effect of the sealing device is improved.

[0013] Preferably, the surface of the mounting ring is respectively provided with positioning blocks on the two sides, and the positioning blocks on the two sides are respectively clamped with the positioning frames on the battery pack shell and the shell cover.

[0014] The above components achieve the effect that through the arrangement of the positioning blocks and the positioning frames, when the mounting ring is assembled at the gap position between the battery pack shell and the shell cover, the mounting ring is more stable and is less likely to be deformed, so that the sealing ring is more stably shielded at the gap position.

[0015] Preferably, the bottom of the battery pack shell is provided with a protective device, the protective device comprises a protective sleeve, the protective sleeve is sleeved on the bottom surface of the battery pack shell, an inner wall of the protective sleeve is provided with a clamping groove, and a clamping block mounted on the surface of the battery pack is clamped to the inner wall of the clamping groove.

[0016] The effects achieved by the above components are that when protecting the bottom position of the battery pack shell, the protective sleeve is installed at the bottom of the battery pack shell, the clamping block fixedly connected to the bottom of the battery pack shell is clamped into the clamping groove in the inner wall of the protective sleeve, and then the battery pack is assembled at the corresponding position, so that the bottom position of the shell is less likely to be in contact with objects and collide to cause damage and rupture when the battery pack is used, and the single batteries inside are better protected.

[0017] Preferably, the protection device further comprises a protective plate on the surface of the protective sleeve.

[0018] The effects achieved by the above components are that the protective performance of the four corner positions of the protective sleeve is further improved through the arrangement of the protective plate, and the bottom position of the battery pack shell is better protected, and the use effect of the protection device is improved.

[0019] Preferably, the surface of the protective sleeve is provided with a stabilizing groove on each side, and a stabilizing plate is inserted into the inner wall of the stabilizing groove and arranged on the surface of the battery pack shell.

[0020] The effects achieved by the above components are that the connection between the protective sleeve and the battery pack shell is further improved when the protective sleeve is installed at the bottom position of the battery pack shell through the insertion arrangement of the stabilizing plate and the stabilizing groove, so that the assembly of the protective sleeve is more stable and less likely to be loose.

[0021] The beneficial effects of the utility model are:

[0022] When the battery pack is normally assembled and used, the gap at the cover position can be better sealed and filled, external dust and impurities are less likely to enter to cause erosion and damage, the single batteries inside are better protected, and the use effect and functionality of the shell are improved. BRIEF DESCRIPTION OF DRAWINGS

[0023] The utility model is further described below in combination with the drawings and examples.

[0024] Figure 1 is the structure schematic view of the utility model;

[0025] Figure 2 is the structure schematic view of the sealing device of the utility model;

[0026] Figure 3 is the partial structure schematic view of the utility model Figure 2 ;

[0027] Figure 4 is the structure schematic view of the protection device of the utility model.

[0028] Legend: 1, battery pack shell; 2, shell cover; 3, single battery; 4, sealing device; 41, positioning plate; 42, mounting ring; 43, sealing ring; 44, arc plate; 45, screw; 46, positioning column; 47, plus guard ring; 48, positioning block; 49, positioning frame; 5, plus guard device; 51, protective sleeve; 52, clamping groove; 53, clamping block; 54, protective plate; 55, stabilizing groove; 56, stabilizing plate. DETAILED DESCRIPTION

[0029] The utility model will be explained in further detail now in combination with the drawings. These drawings are all simplified schematic diagrams, and only illustrate the basic structure of the utility model in a schematic way, so it only shows the relevant components of the utility model.

[0030] In the description of the utility model, it needs to be explained that, unless there is explicit provision and limitation, the terms "connected" and "connected" should be understood broadly, for example, it can be fixed connection, or detachable connection, or integrally connected; it can be mechanical connection, or electrical connection; it can be directly connected, or indirectly connected through intermediate medium. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0031] Figure 1 The battery pack shown has sealing function, including battery pack shell 1, the inside installation of battery pack shell 1 has several orderly arranged single battery 3, the surface installation of battery pack shell 1 has shell cover 2, and the assembly gap between battery pack shell 1 and shell cover 2 is provided with sealing device 4, wherein sealing device 4 is sealed and protected between battery pack shell 1 and shell cover 2 by means of sealing ring 43, and the bottom position of battery pack shell 1 is provided with plus guard device 5.

[0032] Figure 1 、 Figure 2 and Figure 3The sealing device 4 shown includes a mounting ring 42, which is sleeved on the circular arc surface of the battery pack shell 1, the four corners of the battery pack shell 1 and the four corners of the shell cover 2 are respectively mounted on the positioning plate 41, and the two sides of the mounting ring 42 abut against the positioning plate 41, the inner wall of the mounting ring 42 is provided with a sealing ring 43, the sealing ring 43 is a rubber ring, the four corners of the battery pack shell 1 are respectively provided with an arc-shaped plate 44, and the cross section of the arc-shaped plate 44 is in the shape of "U", the two sides of the arc-shaped plate 44 are respectively connected and fixed with the positioning plate 41 on the battery pack shell 1 and the shell cover 2 through bolts, when the battery pack is assembled, first, a plurality of single batteries 3 are sequentially and orderly arranged and combined in the inside of the battery pack shell 1, then the mounting ring 42 is assembled at the opening position of the battery pack shell 1, then the shell cover 2 is connected and fixed with the battery pack shell 1, at this time, the positioning plate 41 on the battery pack shell 1 and the shell cover 2 clamps and fixes the mounting ring 42, finally, one arc-shaped plate 44 is respectively mounted at the four corners of the mounting ring 42, and one screw 45 is respectively penetrated through the two sides of the arc-shaped plate 44, so that the screw 45 is threadedly connected with the positioning plate 41, so that the position of the mounting ring 42 is fixed, at this time, the sealing ring 43 fixedly connected with the inner wall of the mounting ring 42 can be wrapped at the gap position of the battery pack shell 1 and the shell cover 2, at this time, when the battery pack is normally assembled and used, the gap at the position of the shell cover 2 can be better sealed and filled, it is not easy for foreign dust and impurities to enter and cause corrosion and damage, the internal single battery 3 is better protected, and the use effect and functionality of the shell are improved.

[0033] Figure 1 、 Figure 2 and Figure 3 The sealing device 4 shown further includes positioning columns 46 on the surface of the mounting ring 42, the positioning columns 46 are penetrated and inserted with the surface of the arc-shaped plate 44, through the arrangement of the positioning columns 46, when the arc-shaped plate 44 and the screw 45 are installed and fixed, the positioning columns 46 fixedly connected with the mounting ring 42 and the arc-shaped plate 44 can be mutually inserted, so that the position of the mounting ring 42 is more stable and is not easy to loosen, and the position stability of the sealing ring 43 is further ensured, the two sides of the sealing ring 43 are respectively provided with a protection ring 47, the protection ring 47 is a silica gel ring, through the arrangement of the protection ring 47, the gap between the battery pack shell 1 and the shell cover 2 is further shielded and protected, so that it is more difficult for dust and impurities to enter, the use effect of the sealing device 4 is improved, the surface of the mounting ring 42 is respectively provided with a positioning block 48 on the two sides, and the two positioning blocks 48 are respectively clamped with positioning frames 49 on the battery pack shell 1 and the shell cover 2, through the arrangement of the positioning block 48 and the positioning frame 49, when the mounting ring 42 is assembled at the gap position of the battery pack shell 1 and the shell cover 2, the mounting ring 42 will be more stable and is not easy to deform, so that the sealing ring 43 is more stably shielded at the gap position.

[0034] Figure 1 and Figure 4The shown protection device 5 includes a protective sleeve 51, which is sleeved on the bottom surface of the battery pack shell 1, and the inner wall of the protective sleeve 51 is provided with a clamping groove 52, and the inner wall of the clamping groove 52 is clamped with a clamping block 53 installed on the surface of the battery pack. When protecting the bottom position of the battery pack shell 1, the protective sleeve 51 is installed on the bottom of the battery pack shell 1, and the clamping block 53 fixedly connected to the bottom of the battery pack shell 1 is clamped into the clamping groove 52 in the inner wall of the protective sleeve 51. Then the battery pack is assembled in the corresponding position. At this time, when the battery pack is in use, the bottom position of the shell is less likely to be in contact with objects and collide, causing damage and rupture, thereby better protecting the internal single battery 3.

[0035] Figure 1 And Figure 4 The shown protection device 5 also includes a protective plate 54 around the surface of the protective sleeve 51. The protective plate 54 is a foam plate. The setting of the protective plate 54 further improves the protection performance of the four corner positions of the protective sleeve 51, thereby better protecting the bottom position of the battery pack shell 1 and improving the use effect of the protection device 5. The surface of the protective sleeve 51 is provided with a stabilizing groove 55 on both sides. The inner wall of the stabilizing groove 55 is inserted with a stabilizing plate 56 installed on the surface of the battery pack shell 1. The insertion of the stabilizing plate 56 and the stabilizing groove 55 improves the connectivity of the protective sleeve 51 when installed on the bottom position of the battery pack shell 1, thereby making the assembly of the protective sleeve 51 more stable and less likely to loosen.

[0036] Working principle: when the battery pack is installed and combined, first arrange and combine several single batteries 3 in order in the inside of the battery pack shell 1, then assemble the mounting ring 42 at the opening position of the battery pack shell 1, then connect and fix the shell cover 2 with the battery pack shell 1. At this time, the positioning plate 41 on the battery pack shell 1 and the shell cover 2 clamps and fixes the mounting ring 42. Finally, install an arc plate 44 at each of the four corner positions of the mounting ring 42, and pass a screw 45 through both sides of the arc plate 44, so that the screw 45 is threadedly connected with the positioning plate 41, and the position of the mounting ring 42 is fixed. At this time, the sealing ring 43 fixedly connected to the inner wall of the mounting ring 42 and the protection ring 47 fixedly connected to both sides of the sealing ring 43 will cover the gap position of the battery pack shell 1 and the shell cover 2. At this time, when the battery pack is normally assembled and used, the gap at the position of the shell cover 2 can be better sealed and filled, and it is less likely that foreign dust and impurities will enter and cause corrosion and damage, thereby better protecting the internal single battery 3 and improving the use effect and functionality of the shell.

[0037] When protecting the bottom position of the battery pack shell 1, the protective sleeve 51 is installed at the bottom of the battery pack shell 1, the clamping block 53 fixedly connected at the bottom of the battery pack shell 1 is clamped into the clamping groove 52 in the inner wall of the protective sleeve 51, and then the battery pack is assembled at the corresponding position, so that the bottom position of the shell is less likely to be contacted and collided with objects during use of the battery pack, damage and breakage are caused, and the single battery 3 in the shell is better protected.

[0038] With the above ideal embodiments of the present application as the inspiration, through the above description, relevant personnel can make various changes and modifications without deviating from the technical idea of the present application. The technical scope of the present application is not limited to the content in the specification, and must be determined according to the scope of the claims.

Claims

1. A battery pack having a sealing function, comprising a battery pack case (1), characterized by: The battery pack shell (1) is internally mounted with a plurality of orderly arranged single batteries (3), the surface of the battery pack shell (1) is mounted with a shell cover (2), a sealing device (4) is arranged between the assembly gap of the battery pack shell (1) and the shell cover (2), wherein the sealing device (4) seals and protects the battery pack shell (1) and the shell cover (2) by means of a sealing ring (43).

2. The battery pack having a sealing function according to claim 1, characterized by: The sealing device (4) comprises a mounting ring (42) which is sleeved on the circular arc surface of the battery pack shell (1), the four corner positions of the battery pack shell (1) and the shell cover (2) are respectively mounted on the positioning plates (41), and the two sides of the mounting ring (42) abut against the positioning plates (41), the inner wall of the mounting ring (42) is mounted with a sealing ring (43), the sealing ring (43) is a rubber ring, the four corner positions of the battery pack shell (1) are respectively mounted with arc-shaped plates (44), and the cross section of the arc-shaped plate (44) is "U" shaped, the two sides of the arc-shaped plate (44) are respectively connected and fixed with the positioning plates (41) on the battery pack shell (1) and the shell cover (2) through bolts.

3. The battery pack with a sealing function according to claim 2, characterized in that: The sealing device (4) further comprises positioning columns (46) on the surface of the mounting ring (42), and the positioning columns (46) are inserted into the surface of the arc-shaped plate (44).

4. The battery pack with a sealing function according to claim 2, wherein: The two sides of the sealing ring (43) are respectively mounted with protective rings (47), and the protective rings (47) are silica gel rings.

5. The battery pack with a sealing function according to claim 2, wherein: The surfaces of the mounting ring (42) are respectively mounted with positioning blocks (48), and the two positioning blocks (48) are respectively clamped with the positioning frames (49) on the battery pack shell (1) and the shell cover (2).

6. The battery pack with a sealing function according to claim 1, wherein: The bottom position of the battery pack shell (1) is provided with a protective device (5), the protective device (5) comprises a protective sleeve (51), the protective sleeve (51) is sleeved on the bottom surface of the battery pack shell (1), the inner wall of the protective sleeve (51) is provided with a clamping groove (52), and the inner wall of the clamping groove (52) is clamped with a clamping block (53) mounted on the surface of the battery pack.

7. The battery pack with a sealing function according to claim 6, characterized by: The protective device (5) further comprises a protective plate (54) on the surface of the protective sleeve (51), and the protective plate (54) is a foam plate.

8. The battery pack with a sealing function according to claim 6, wherein: The surfaces of the protective sleeve (51) are respectively provided with stable grooves (55), and the inner walls of the stable grooves (55) are inserted with stable plates (56) mounted on the surface of the battery pack shell (1).

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