CN219917445U - Connection structure and battery - Google Patents

Abstract

The utility model provides a connecting structure and a battery, and relates to the technical field of batteries. The connecting structure comprises a beam body and a connecting cylinder. The beam body is arranged inside the battery and is used for being connected with the bottom plate of the battery. One end of the connecting cylinder is connected with the beam body, and one end of the connecting cylinder, which is far away from the beam body, is used for being connected with a box cover of the battery; the beam body runs through along the direction perpendicular to the bottom plate and has seted up first through-hole, runs through on the connecting cylinder and has seted up the second through-hole that sets up along the axis of connecting cylinder, connecting cylinder and beam body integrated into one piece, and first through-hole and second through-hole intercommunication form the assembly passageway, and the assembly passageway is used for supplying the connecting piece to pass in order to connect the battery in the consumer through the connecting piece. The battery provided by the utility model adopts the connecting structure. The connecting structure and the battery provided by the utility model can solve the problems that the accuracy of the connecting position is not easy to determine and the cost is easy to lose.

Description

Connection structure and battery

Technical Field

The utility model relates to the technical field of batteries, in particular to a connecting structure and a battery.

Background

The power battery is used as a chassis part of the whole vehicle, and a mounting point is often required to be designed in the middle of the box body so as to penetrate through the whole box body, thereby increasing the strength of the box body. The existing mounting assembly generally comprises a sleeve, a fastener and the like, the sleeve is welded on a box body cross beam generally by adopting a welding technology, but the position accuracy of the sleeve after welding is not easy to determine, and welding deformation exists, so that the mounting accuracy of a power battery is reduced, and unnecessary cost loss is caused.

Disclosure of Invention

The utility model aims to provide a connecting structure which can solve the problems that the accuracy of a connecting position is not easy to determine and the cost is easy to lose in the prior art.

The utility model also aims to provide a battery which can solve the problems that the accuracy of the connecting position is not easy to determine and the cost is easy to lose in the prior art.

Embodiments of the utility model may be implemented as follows:

an embodiment of the present utility model provides a connection structure applied to a battery, the connection structure including:

the beam body is arranged in the battery and is used for being connected with a bottom plate of the battery; the method comprises the steps of,

one end of the connecting cylinder is connected with the beam body, and one end of the connecting cylinder, which is far away from the beam body, is used for being connected with a box cover of the battery; the beam body is penetrated and is provided with a first through hole along the direction vertical to the bottom plate, the connecting cylinder is penetrated and provided with a second through hole arranged along the axis of the connecting cylinder, the connecting cylinder is integrally formed with the beam body, the first through hole is communicated with the second through hole to form an assembly channel, and the assembly channel is used for a connecting piece to pass through so as to connect the battery with electric equipment through the connecting piece.

Optionally, the connection structure further comprises a first fitting; the end part, far away from the beam body, of the connecting cylinder is provided with a first assembly groove along the axial direction, and the first assembly part is used for penetrating through the box cover and detachably assembled in the first assembly groove and used for clamping the box cover with the connecting cylinder;

and/or the connection structure further comprises a second fitting; a second assembly groove is formed in one side, away from the connecting cylinder, of the Liang Tiyuan, and the second assembly part penetrates through the bottom plate and is detachably assembled in the second assembly groove and used for clamping the bottom plate with the beam body.

Optionally, the groove side wall of the first fitting groove is provided with internal threads, and the first fitting is in threaded fit with the first fitting groove; and/or the groove side wall of the second assembly groove is provided with an internal thread, and the second assembly part is in threaded fit with the second assembly groove.

Optionally, the first fitting includes a first press-holding portion and a first connecting portion; the first connecting part is convexly arranged on one side of the first pressing part, the first connecting part is in threaded fit with the first assembly groove, and the first pressing part and the connecting cylinder clamp the box cover;

and/or the second assembly part comprises a second pressing part and a second connecting part, the second connecting part is convexly arranged on one side of the second pressing part, the second connecting part is in threaded fit with the second assembly groove, and the bottom plate is clamped by the second pressing part and the beam body.

Optionally, a third through hole is formed in the first assembly part along the axial direction; the fitting channel and the third through hole are coaxially arranged under the condition that the first fitting is fitted in the first fitting groove, and the third through hole is used for the connecting piece to pass through;

and/or a fourth through hole is formed in the second assembly part along the axial direction; and under the condition that the second assembly part is assembled in the second assembly groove, the fourth through hole is coaxially arranged with the assembly channel, and the fourth through hole is used for the connecting piece to pass through.

Optionally, the connection structure further comprises a first seal; the periphery of the end part of the connecting cylinder far away from the beam body is provided with an annular pressing piece in a protruding mode along the radial direction, and the first sealing piece is pressed between the pressing piece and the box cover.

Optionally, a first boss is convexly arranged on one side, away from the beam body, of the pressing piece around the central axis of the pressing piece; the first boss is propped against the box cover, and the first sealing piece is sleeved on the periphery of the first boss.

Optionally, a second boss is convexly arranged on one side of the Liang Tiyuan away from the connecting cylinder, and the second boss is formed around the central axis of the first through hole; the connecting structure further comprises a second sealing piece, the second sealing piece is sleeved on the periphery of the second boss, and the second sealing piece is pressed between the beam body and the bottom plate.

Optionally, the first through hole and the second through hole are coaxially arranged, and the aperture of the first through hole is the same as the aperture of the second through hole.

A battery comprising a case, a connector and a connection structure, the connection structure comprising:

the beam body is arranged in the battery and is used for being connected with a bottom plate of the battery; the method comprises the steps of,

one end of the connecting cylinder is connected with the beam body, and one end of the connecting cylinder, which is far away from the beam body, is used for being connected with a box cover of the battery; the beam body is provided with a first through hole in a penetrating manner along the direction perpendicular to the bottom plate, the connecting cylinder is provided with a second through hole in a penetrating manner along the axis of the connecting cylinder, the connecting cylinder and the beam body are integrally formed, the first through hole is communicated with the second through hole to form an assembly channel, and the assembly channel is used for a connecting piece to pass through so as to connect the battery with electric equipment through the connecting piece; the box body is provided with a box cover and a bottom plate; the box cover is connected with one end, far away from the beam body, of the connecting cylinder, and the bottom plate is connected with one side, far away from the connecting cylinder, of the Liang Tiyuan; the connecting piece passes through the assembly channel and the box cover and is used for connecting the battery to electric equipment.

The connecting structure and the battery provided by the utility model have the beneficial effects compared with the prior art that:

the connecting cylinder and the beam body are manufactured and molded in an integrated molding mode, so that the position of the connecting cylinder on the beam body can be clearly determined under the conditions of manufacturing the beam body and the connecting cylinder, and the position of the connecting cylinder can be accurately determined, thereby being convenient for the position determination of a battery. In addition, because the connecting cylinder and the beam body are manufactured in an integrated forming mode, the process step of welding the connecting cylinder can be omitted, and further inconvenient determination of the position of the connecting cylinder caused by welding deformation can be avoided, and welding through events are avoided, so that the position determination of the connecting structure influenced by the welding process and cost loss caused by the welding process are avoided. Based on this, this connection structure and battery can improve the problem that the connection position accuracy is difficult to confirm and causes the cost loss easily among the prior art. In addition, because of adopting connecting cylinder and roof beam body integrated into one piece's mode, can also promote connection structure holistic waterproof performance and intensity, promoted connection structure's stability.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some embodiments of the present utility model and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic view of an exploded structure of a battery provided in an embodiment of the present utility model;

FIG. 2 is a schematic view of a connection structure according to a first view angle of an embodiment of the present utility model;

fig. 3 is a partial view of a cross-sectional view of a battery provided in an embodiment of the present utility model;

fig. 4 is a partial view of another cross-sectional view of a battery provided in an embodiment of the present utility model;

FIG. 5 is a schematic diagram of a connection structure according to a second view angle of the present utility model;

FIG. 6 is a partial cross-sectional view of a connection structure provided in an embodiment of the present utility model;

FIG. 7 is a cross-sectional view of a first fitting provided in an embodiment of the present utility model;

FIG. 8 is a cross-sectional view of a second fitting provided in an embodiment of the present utility model;

fig. 9 is a schematic view showing a partial structure of a battery provided in an embodiment of the present utility model;

fig. 10 is an enlarged schematic view of the structure at a in fig. 9.

Icon: 10-battery; 11-a case cover; 12-a bottom plate; 13-a connection structure; 14-fitting the channel; 15-connecting piece; 16-an intermediate beam; 17-a threaded hole; 100-beam body; 101-a first through hole; 110-a second fitting; 111-a second press-holding portion; 112-a second connection; 113-fourth through holes; 120-a second fitting groove; 130-a second boss; 200-connecting a cylinder; 201-a second via; 210-a first fitting; 211-a first press-holding part; 212-a first connection; 213-a third via; 220-a first fitting groove; 230-a press holder; 231-first boss; 310-a first seal; 320-a second seal.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments of the present utility model. The components of the embodiments of the present utility model generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the utility model, as presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures.

In the description of the present utility model, it should be noted that, if the terms "upper", "lower", "inner", "outer", and the like indicate an azimuth or a positional relationship based on the azimuth or the positional relationship shown in the drawings, or the azimuth or the positional relationship in which the inventive product is conventionally put in use, it is merely for convenience of describing the present utility model and simplifying the description, and it is not indicated or implied that the apparatus or element referred to must have a specific azimuth, be configured and operated in a specific azimuth, and thus it should not be construed as limiting the present utility model.

Furthermore, the terms "first," "second," and the like, if any, are used merely for distinguishing between descriptions and not for indicating or implying a relative importance.

It should be noted that the features of the embodiments of the present utility model may be combined with each other without conflict.

Referring to fig. 1, a battery 10 is provided in an embodiment of the present utility model, the battery 10 is used for storing electric energy, and the battery 10 may be used for being assembled to an electric device and electrically connected to the electric device to transmit electric energy to the electric device. In order to facilitate connection of the battery 10 to the electric device, the battery 10 provided in the embodiment of the utility model includes a connection structure 13, and the connection structure 13 is used for realizing connection and fixation between the battery 10 and the electric device. In addition, the connection structure 13 provided in the embodiment of the utility model can solve the problems that the accuracy of the connection position is not easy to determine and the cost is easy to lose in the prior art.

In this embodiment, referring to fig. 2, 3 and 4 in combination, the connection structure 13 includes a beam 100 and a connection barrel 200. The beam 100 is provided inside the battery 10 and is connected to the bottom plate 12 of the battery 10. One end of the connecting cylinder 200 is connected with the beam body 100, and one end of the connecting cylinder 200, which is far away from the beam body 100, is used for being connected with the case cover 11 of the battery 10; the beam body 100 is provided with a first through hole 101 in a penetrating way along the direction perpendicular to the bottom plate 12, the connecting cylinder 200 is provided with a second through hole 201 in a penetrating way along the axis of the connecting cylinder 200, the connecting cylinder 200 and the beam body 100 are integrally formed, the first through hole 101 is communicated with the second through hole 201 to form an assembly channel 14, and the assembly channel 14 is used for the connecting piece 15 to penetrate through so as to connect the battery 10 with electric equipment through the connecting piece 15.

In the process of assembling the battery 10, the connecting piece 15 may pass through the assembling channel 14, and connect the connecting piece 15 to the electric device, at this time, the purpose of fixing the battery 10 by the connecting piece 15 is achieved by reinforcing the connection relationship between the connecting piece 15 and the electric device. It should be noted that, in general, the connecting piece 15 is a threaded piece, that is, the connecting piece 15 passes through the assembly channel 14 to be in threaded connection with the electric device, and the nut at the other end of the connecting piece 15 abuts against the beam body 100, so as to achieve the purpose of clamping the connecting piece 15 and the electric device to the connecting structure 13. The connecting piece 15 adopts the mode of screw member can conveniently dismantle, just can make things convenient for battery 10 to dismantle from the consumer, not only can make things convenient for the position adjustment of battery 10, can also conveniently maintain battery 10 simultaneously.

As described above, the connecting cylinder 200 and the beam body 100 are manufactured and formed in an integrally formed manner, so that the position of the connecting cylinder 200 on the beam body 100 can be determined accurately under the condition of manufacturing the beam body 100 and the connecting cylinder 200, and the position of the battery 10 can be determined conveniently. In addition, since the connecting cylinder 200 and the beam body 100 are manufactured in an integrally formed manner, the process step of welding the connecting cylinder 200 can be omitted, thereby avoiding inconvenient determination of the position of the connecting cylinder 200 caused by welding deformation, avoiding occurrence of a welding through event, avoiding influence of the welding process on the position determination of the connecting structure 13 and avoiding cost loss caused by the welding process. Based on this, the connection structure 13 and the battery 10 can improve the problems of difficulty in determining the connection position accuracy and easiness in causing cost loss in the prior art. In addition, due to the adoption of the mode of integrally forming the connecting cylinder 200 and the beam body 100, the overall waterproof performance and strength of the connecting structure 13 can be improved, and the stability of the connecting structure 13 is improved.

In this embodiment, referring to fig. 4, the first through hole 101 and the second through hole 201 are coaxially disposed, and the aperture of the first through hole 101 is the same as the aperture of the second through hole 201. Thereby allowing the fitting channel 14 to be considered as a cylindrical through hole; of course, in other embodiments of the present utility model, the inner diameter of the first through hole 101 and the inner diameter of the second through hole 201 may be omitted, so that the fitting passage 14 forms a stepped hole or the like.

Optionally, referring to fig. 3, 4 and 6 in combination, in an embodiment of the present utility model, the connection structure 13 further includes a first fitting 210; the end of the connection cylinder 200 away from the beam body 100 is axially provided with a first fitting groove 220, and the first fitting 210 is configured to pass through the cover 11 and detachably fit into the first fitting groove 220, and to clamp the cover 11 with the connection cylinder 200. And/or the connection structure 13 further comprises a second fitting 110; the side of the beam body 100 away from the connecting cylinder 200 is provided with a second assembly groove 120, and the second assembly part 110 is used for penetrating through the bottom plate 12 and detachably assembled in the second assembly groove 120, and is used for clamping the bottom plate 12 with the beam body 100.

Wherein "and/or" means that the connection structure 13 may be provided with only the first fitting 210; it is also possible to provide only the second fitting 110; of course, it is also possible that the connection structure 13 comprises a first fitting 210 and a second fitting 110 as in the embodiment of the utility model.

Wherein, the first assembly part 210 and the connecting cylinder 200 jointly clamp the case cover 11 of the battery 10, so that the stability of the connecting structure 13 in the case of the battery 10 can be improved; similarly, the second assembly 110 and the beam body 100 jointly clamp the bottom plate 12 of the battery 10, so that the stability of the connecting structure 13 in the battery 10 box can be further improved. Under the condition that the first assembly part 210 and the second assembly part 110 are arranged at the same time, an integral body can be formed between the connecting structure 13 and the box body of the battery 10, so that the connecting structure 13 and the box body of the battery 10 are ensured to be more compact, and under the condition that the connecting piece 15 passes through the assembly channel 14 to be connected with electric equipment, the integral stability of the battery 10 can be improved.

Further, the groove sidewall of the first fitting groove 220 is provided with an internal thread, and the first fitting 210 is screw-fitted with the first fitting groove 220; and/or the groove sidewall of the second fitting groove 120 is provided with an internal thread, and the second fitting 110 is screw-fitted with the second fitting groove 120.

Where "and/or" means that, in the case where the connection structure 13 is provided with only the first fitting 210, only the groove side wall of the first fitting groove 220 is provided with the female screw, and the first fitting 210 is screw-fitted with the first fitting groove 220; in the case where the connection structure 13 is provided with only the second fitting 110, only the groove side wall of the second fitting groove 120 is provided with the female screw, and the second fitting 110 is screw-fitted with the second fitting groove 120; of course, in the case that the connecting structure 13 is provided with the first fitting 210 and the second fitting 110 at the same time, the groove side wall of the first fitting groove 220 and the groove side wall of the second fitting groove 120 are both provided with internal threads, so that the first fitting 210 is conveniently in threaded fit with the first fitting groove 220, and the second fitting 110 is also conveniently in threaded fit with the second fitting groove 120.

The connection between the first fitting 210 and the first fitting groove 220 and the connection between the second fitting 110 and the second fitting groove 120 are realized by means of threaded connection, so that the first fitting 210 and the second fitting 110 can be conveniently detached, the connection structure 13 can be conveniently detached from the battery 10, and the maintenance of the battery 10 is facilitated. Moreover, the acting force of the connecting cylinder 200 and the first assembly part 210 for jointly clamping the box cover 11 can be conveniently adjusted through the threaded connection mode, the acting force of the second assembly part 110 and the beam body 100 for jointly clamping the bottom plate 12 can also be conveniently adjusted, so that the connection tightness of the whole connecting structure 13 and the box body of the battery 10 can be conveniently adjusted, and the connection stability of the connecting structure 13 and the box body of the battery 10 is improved.

In addition, referring to fig. 6, 7 and 8, in the embodiment of the present utility model, the first fitting 210 includes a first pressing portion 211 and a first connecting portion 212; the first connecting portion 212 is protruded at one side of the first pressing portion 211, the first connecting portion 212 is in threaded engagement with the first assembling groove 220, and the first pressing portion 211 and the connecting cylinder 200 clamp the cover 11. And/or, the second assembly part 110 includes a second pressing part 111 and a second connecting part 112, the second connecting part 112 is convexly arranged at one side of the second pressing part 111, the second connecting part 112 is in threaded fit with the second assembly groove 120, and the second pressing part 111 and the beam body 100 clamp the bottom plate 12.

Wherein, "and/or" means that only the first fitting 210 may be disposed by the first pressing portion 211 and the first connecting portion 212; only the second fitting 110 may be provided with the second holding portion 111 and the second connecting portion 112; it is also possible that the first fitting 210 adopts the arrangement of the first pressing portion 211 and the first connecting portion 212, and the second fitting 110 adopts the arrangement of the second pressing portion 111 and the second connecting portion 112, as in the embodiment of the present utility model.

Under the condition that the first connecting portion 212 is assembled with the first assembling groove 220 in a threaded connection manner, the acting force of the first pressing portion 211 and the connecting cylinder 200 for jointly clamping the case cover 11 can be adjusted through the screwing depth of the first connecting portion 212, so that the connection tightness degree between the connecting structure 13 and the case cover 11 can be conveniently adjusted, and the connection stability of the connecting structure 13 and the case body of the battery 10 can be conveniently improved. Similarly, in the case that the second connecting portion 112 is assembled with the second assembling groove 120 through the threaded connection, the acting force of the second pressing portion 111 and the beam body 100 for jointly clamping the bottom plate 12 can be adjusted through the screwing depth of the second connecting portion 112, so that the connection tightness between the connecting structure 13 and the bottom plate 12 can be conveniently adjusted, and the connection stability of the connecting structure 13 and the battery 10 box can be conveniently improved.

In the embodiment of the present utility model, the first fitting 210 is axially provided with a third through hole 213; in the state that the first fitting 210 is fitted to the first fitting groove 220, the fitting passage 14 and the third through hole 213 are coaxially provided, and the third through hole 213 is for the passage of the connection member 15. And/or, the second assembly part 110 is provided with a fourth through hole 113 along the axial direction; in the case where the second fitting 110 is fitted to the second fitting groove 120, the fourth through hole 113 is provided coaxially with the fitting passage 14, and the fourth through hole 113 is for the connection member 15 to pass through.

Wherein, since there are cases where only the first fitting 210 is provided and only the second fitting 110 is provided, based on this, and/or it is indicated that, in the case where only the first fitting 210 is provided, the third through hole 213 is provided on the first fitting 210 so as to facilitate the passage of the connection member 15; alternatively, in the case where only the second fitting 110 is provided, a fourth through hole 113 is provided in the second fitting 110 to facilitate the passage of the connection member 15; alternatively, in the case where the first fitting 210 and the second fitting 110 are provided at the same time, the third through hole 213 is provided in the first fitting 210, and the fourth through hole 113 is provided in the second fitting 110, so that the connection member 15 passes therethrough.

Optionally, the third through hole 213 and the fourth through hole 113 are coaxially disposed to facilitate the passage of the connecting member 15. Of course, in other embodiments of the present utility model, the axes of the third through hole 213 and the fourth through hole 113 may be offset, so long as the connecting member 15 can pass through.

It should be noted that, in the present embodiment, the first through hole 101, the second through hole 201, the third through hole 213 and the fourth through hole 113 are coaxially disposed and are mutually communicated, so as to facilitate the connection member 15 passing through.

In the present embodiment, the inner diameter of the first fitting groove 220 is larger than the inner diameter of the fitting passage 14; and/or the inner diameter of the second fitting groove 120 is larger than the inner diameter of the fitting channel 14.

It should be noted that, in this embodiment, in order to improve the stability of the connection structure 13, the inner diameter of the assembly channel 14 is adapted to the diameter of the connection member 15, so that the inner wall of the assembly channel 14 is approximately fit with the outer side of the connection member 15, and the assembly channel 14 can provide a limiting effect for the connection member 15, so as to prevent the connection member 15 from tilting or shifting, thereby improving the connection stability of the connection member 15 and the electrical equipment, and further improving the connection stability of the connection structure 13 and the electrical equipment. Based on this, since the connection member 15 needs to pass through the first fitting 210 and the second fitting 110, in order to facilitate the fitting of the first fitting 210 with the first fitting groove 220 and the fitting of the second fitting 110 with the second fitting groove 120, the inner diameter of the first fitting groove 220 is made larger than the inner diameter of the fitting passage 14, and the inner diameter of the second fitting groove 120 is made larger than the inner diameter of the fitting passage 14.

Of course, in other embodiments of the present utility model, the diameters of the first through hole 101 and the second through hole 201 may be different, so that the inner diameter of the fitting channel 14 is different from the diameter of the connecting member 15, and at this time, a portion of the inner diameter of the fitting channel 14 may be made larger than the diameter of the connecting member 15, and based on this, a case where the inner diameter of the first fitting groove 220 is not larger than the inner diameter of the fitting channel 14, or a case where the inner diameter of the second fitting groove 120 is not larger than the inner diameter of the fitting channel 14 may be provided. For example, the inner diameter of the first through hole 101 is larger than the inner diameter of the second through hole 201, and the inner diameter of the first through hole 101 is the same as the inner diameter of the first fitting groove 220, and the inner diameter of the second fitting groove 120 is larger than the inner diameter of the second through hole 201; at this time, the inner diameter of the first fitting groove 220 may be regarded as being equal to the partial inner diameter of the fitting passage 14. For another example, the inner diameter of the first through hole 101 and the inner diameter of the second through hole 201 are equal and both larger than the diameter of the connection member 15. At this time, the inner diameter of the first fitting groove 220 may be equal to the inner diameter of the fitting channel 14, the inner diameter of the second fitting groove 120 is greater than the inner diameter of the fitting channel 14, and the inner diameter of the third through hole 213 of the first fitting 210 may be equal to the diameter of the connection member 15.

In this embodiment, referring to fig. 3, 4 and 6 in combination, the connecting structure 13 further includes a first sealing member 310; the outer circumference of the end of the connection cylinder 200 remote from the beam body 100 is radially protruded with a pressing member 230 in a ring shape, and the first sealing member 310 is pressed between the pressing member 230 and the cover 11. The gap between the cover 11 and the holder 230 is sealed by the first seal 310, so that external moisture can be prevented from entering the interior of the case of the battery 10, and the waterproof property of the case of the battery 10 can be improved.

Optionally, a side of the pressing member 230 away from the beam body 100 is convexly provided with a first boss 231 around a central axis thereof, and optionally, the first boss 231 is annular; the first boss 231 abuts against the case cover 11, and the first sealing member 310 is sleeved on the outer periphery of the first boss 231. By the first boss 231 abutting against the cover 11, the cover 11 and the pressing member 230 can be prevented from excessively compressing the first seal member 310, and the service life of the first seal member 310 can be improved.

It should be noted that, the height of the first boss 231 is smaller than the thickness of the first sealing member 310, so that the cover 11 and the pressing member 230 can provide compression to the first sealing member 310, and sealing performance of the first sealing member 310 can be improved.

It should be appreciated that in other embodiments of the present utility model, the first boss 231 may be omitted.

In addition, referring to fig. 3, 4, 5 and 6 in combination, in the present embodiment, a side of the beam body 100 away from the connection cylinder 200 is convexly provided with a second boss 130, the second boss 130 is formed around the central axis of the first through hole 101, and of course, in the present embodiment, the second boss 130 is disposed around the periphery of the notch thereof along the central axis of the second assembly groove 120, and optionally, the second boss 130 is annular; the connecting structure 13 further includes a second sealing member 320, the second sealing member 320 is sleeved on the outer periphery of the second boss 130, and the second sealing member 320 is pressed between the beam body 100 and the bottom plate 12.

By sealing the gap between the beam body 100 and the floor by the second seal 320, moisture can be prevented from entering the inside of the case of the battery 10 from the gap between the floor and the beam body 100, and the waterproof performance of the case of the battery 10 can be improved.

It should be noted that the height of the second boss 130 is smaller than the thickness of the second sealing member 320, so as to ensure that the second sealing member 320 is compressed by the floor and the beam 100, thereby ensuring that the second sealing member 320 provides effective sealing performance.

Of course, in other embodiments of the present utility model, the second boss 130 may be omitted.

In the present embodiment, referring to fig. 9 and 10 in combination, an intermediate beam 16 is also provided in the case of the battery 10. Wherein both ends of the intermediate beam 16 form a stepped structure. Correspondingly, in the present embodiment, the two sides of the beam body 100 also form a stepped structure, and the stepped structures on the two sides of the beam body 100 are matched with the stepped structures on the two ends of the middle beam 16, and one end of the middle beam 16 is matched with one side of the beam body 100, so that the stepped structure on the end of the middle beam 16 is spliced with the stepped structure on one side of the beam body 100. In order to improve the connection stability between the intermediate beam 16 and the beam body 100, the end of the intermediate beam 16 is welded to the beam body 100.

It should be noted that, in the present embodiment, the intermediate beam 16 is disposed perpendicular to the beam body 100.

In addition, the beam body 100 is further provided with a threaded hole 17 for assembling the heat exchange device, the threaded hole 17 is arranged at a position close to the middle cross beam 16, after the heat exchange device is assembled, the heat exchange device is conveniently matched with the middle cross beam 16, and therefore the purpose of improving the stability of the heat exchange device is achieved.

In summary, in the connection structure 13 and the battery 10 according to the present utility model, the connection tube 200 and the beam body 100 are integrally formed, so that the position of the connection tube 200 on the beam body 100 can be precisely determined when the beam body 100 and the connection tube 200 are manufactured, and the position of the connection tube 200 can be precisely determined, thereby facilitating the determination of the position of the battery 10. In addition, since the connecting cylinder 200 and the beam body 100 are manufactured in an integrally formed manner, the process step of welding the connecting cylinder 200 can be omitted, thereby avoiding inconvenient determination of the position of the connecting cylinder 200 caused by welding deformation, avoiding occurrence of a welding through event, avoiding influence of the welding process on the position determination of the connecting structure 13 and avoiding cost loss caused by the welding process. Based on this, the connection structure 13 and the battery 10 can improve the problems of difficulty in determining the connection position accuracy and easiness in causing cost loss in the prior art. In addition, due to the adoption of the mode of integrally forming the connecting cylinder 200 and the beam body 100, the overall waterproof performance and strength of the connecting structure 13 can be improved, and the stability of the connecting structure 13 is improved.

The foregoing is merely illustrative of the present utility model, and the present utility model is not limited thereto, and any changes or substitutions easily contemplated by those skilled in the art within the scope of the present utility model should be included in the present utility model. Therefore, the protection scope of the present utility model shall be subject to the protection scope of the claims.

Claims (10)

1. A connection structure, applied to a battery (10), characterized in that the connection structure (13) comprises:

a beam body (100) which is arranged inside the battery (10) and is used for being connected with a bottom plate (12) of the battery (10); the method comprises the steps of,

the connecting cylinder (200), one end of the connecting cylinder (200) is connected with the beam body (100), and one end of the connecting cylinder (200) far away from the beam body (100) is used for being connected with a box cover (11) of the battery (10); the beam body (100) is provided with a first through hole (101) in a penetrating mode along the direction perpendicular to the bottom plate (12), the connecting cylinder (200) is provided with a second through hole (201) in a penetrating mode, the second through hole (201) is arranged along the axis of the connecting cylinder (200), the connecting cylinder (200) is integrally formed with the beam body (100), the first through hole (101) is communicated with the second through hole (201) to form an assembly channel (14), and the assembly channel (14) is used for a connecting piece (15) to penetrate through so as to enable the battery (10) to be connected with electric equipment through the connecting piece (15).

2. The connection structure according to claim 1, characterized in that the connection structure (13) further comprises a first fitting (210); a first assembly groove (220) is formed in the end part, far away from the beam body (100), of the connecting cylinder (200) along the axial direction, and the first assembly part (210) is used for penetrating through the box cover (11) and detachably assembled in the first assembly groove (220) and is used for clamping the box cover (11) with the connecting cylinder (200);

and/or, the connection structure (13) further comprises a second fitting (110); a second assembly groove (120) is formed in one side, far away from the connecting cylinder (200), of the beam body (100), and the second assembly part (110) is used for penetrating through the bottom plate (12) and detachably assembled in the second assembly groove (120) and used for clamping the bottom plate (12) with the beam body (100).

3. The connection structure according to claim 2, characterized in that a groove side wall of the first fitting groove (220) is provided with an internal thread, and the first fitting (210) is screw-fitted with the first fitting groove (220); and/or, the groove side wall of the second assembly groove (120) is provided with internal threads, and the second assembly part (110) is in threaded fit with the second assembly groove (120).

4. A connection according to claim 3, characterized in that the first fitting (210) comprises a first press-on part (211) and a first connection part (212); the first connecting part (212) is convexly arranged on one side of the first pressing part (211), the first connecting part (212) is in threaded fit with the first assembling groove (220), and the first pressing part (211) and the connecting cylinder (200) clamp the box cover (11);

and/or the second assembly part (110) comprises a second pressing part (111) and a second connecting part (112), the second connecting part (112) is convexly arranged on one side of the second pressing part (111), the second connecting part (112) is in threaded fit with the second assembly groove (120), and the second pressing part (111) and the beam body (100) clamp the bottom plate (12).

5. The connecting structure according to claim 2, wherein a third through hole (213) is formed in the first fitting (210) along the axial direction; -said fitting channel (14) and said third through hole (213) are coaxially arranged with said first fitting (210) fitted to said first fitting groove (220), and said third through hole (213) is adapted for said connection piece (15) to pass through;

and/or a fourth through hole (113) is axially formed in the second assembly part (110); the fourth through hole (113) is arranged coaxially with the fitting channel (14) with the second fitting (110) fitted to the second fitting groove (120), and the fourth through hole (113) is used for the connecting piece (15) to pass through.

6. The connection according to any one of claims 1-5, characterized in that the connection (13) further comprises a first seal (310); the periphery of the end part of the connecting cylinder (200) far away from the beam body (100) is provided with an annular pressing piece (230) in a protruding mode along the radial direction, and the first sealing piece (310) is pressed between the pressing piece (230) and the box cover (11).

7. The connecting structure according to claim 6, wherein a side of the pressing member (230) remote from the beam body (100) is provided with a first boss (231) protruding around a central axis thereof; the first boss (231) abuts against the case cover (11), and the first sealing piece (310) is sleeved on the periphery of the first boss (231).

8. The connection structure according to any one of claims 1 to 5, wherein a second boss (130) is provided protruding from a side of the beam body (100) remote from the connection cylinder (200), the second boss (130) being formed around a central axis of the first through hole (101); the connecting structure (13) further comprises a second sealing element (320), the second sealing element (320) is sleeved on the periphery of the second boss (130), and the second sealing element (320) is pressed between the beam body (100) and the bottom plate (12).

9. The connection structure according to any one of claims 1 to 5, characterized in that the first through hole (101) and the second through hole (201) are coaxially arranged, and the aperture of the first through hole (101) and the aperture of the second through hole (201) are the same.

10. A battery, characterized in that it comprises a casing, a connecting element (15) and a connecting structure (13) according to any one of claims 1-9; the box body is provided with a box cover (11) and a bottom plate (12); the box cover (11) is connected with one end, far away from the beam body (100), of the connecting cylinder (200), and the bottom plate (12) is connected with one side, far away from the connecting cylinder (200), of the beam body (100); the connecting piece (15) passes through the assembly channel (14) and the box cover (11) and is used for connecting the battery (10) to electric equipment.