Connecting assembly for connecting battery pack

Abstract

The utility model relates to a connecting component for connecting a battery pack, which comprises a sleeve, a screw sleeve and a lining, one end of the sleeve is in threaded connection with the screw sleeve from a mounting channel of a battery pack, the other end of the sleeve is provided with a limiting part, the mounting channel is provided with a limiting groove corresponding to the limiting part, the lining is hollow and is sleeved outside the screw sleeve, and the screw sleeve comprises a head part and a connecting part. The head part is provided with a driving part for driving the threaded sleeve to be screwed, the connecting part penetrates through the bushing and the battery cover plate to be in threaded connection with the sleeve, and the threaded sleeve and the sleeve are hollow and open at two ends. By adopting the technical scheme, the torsion gun is used for driving the head, and the external thread of the thread sleeve is in threaded connection with the internal thread of the sleeve, so that the first sealing ring of the thread sleeve falls into the annular sealing groove of the sleeve through threaded connection, and the sealing and locking of the battery cover plate and the battery assembly are completed when the torque required by fixing is reached; and the requirements of sealing, waterproofness, fastening, connection and the like can be met through one-time tightening, and the battery cleaning device has remarkable advantages in the aspect of battery cleaning.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile accessories, and more particularly to a connecting assembly for connecting a battery pack. Background Art

[0002] Existing sealing structures for battery packs, especially battery packs for electric vehicles, generally only have one sealing structure. The specific sealing structure adopts a single sealing ring or sealant. The design has insufficient redundancy and cannot achieve a higher level of sealing performance. In addition, the assembly is relatively complicated and the assembly efficiency is low. Utility Model Content

[0003] In summary, in order to overcome the deficiencies of the prior art, the present invention provides a connection assembly for connecting battery packs.

[0004] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a connection assembly for connecting a battery pack, comprising a sleeve, a screw sleeve and a bushing, wherein one end of the sleeve is threadedly connected to the screw sleeve from the mounting channel of the battery assembly, and a limiting portion is provided at the other end, and a limiting groove is provided at the position of the mounting channel corresponding to the limiting portion, the bushing is hollow and sleeved outside the screw sleeve, the screw sleeve comprises a head and a connecting portion, the head is provided with a driving portion for driving the screw sleeve to tighten, the connecting portion passes through the bushing and the battery cover and is threadedly connected to the sleeve, the screw sleeve and the sleeve are both hollow and open at both ends, the connecting portion comprises a mounting section and a threaded section, the mounting section is provided between the threaded section and the head, and more than one mounting ring groove is provided on the mounting section, a first sealing ring is provided in the mounting ring groove, and an annular sealing groove adapted to the first sealing ring is provided at one end of the sleeve corresponding to the connecting portion, and an internal thread adapted to the threaded section is provided between the annular sealing groove and the limiting portion.

[0005] By adopting the above technical solution, a torque gun is used to drive the head, and the external thread of the screw sleeve is threadedly connected with the internal thread of the sleeve, so that the first sealing ring of the screw sleeve will fall into the annular sealing groove of the sleeve through the threaded connection. When the fixed required torque is reached, the sealing and locking of the battery cover and the battery assembly are completed. The sealing, waterproofing, fastening, connection and other requirements can be completed by tightening once, which has significant advantages in battery cleaning.

[0006] The present invention is further provided with: the bushing is sleeved outside the connecting portion, the bushing includes an abutting portion and an inserting portion, the inner diameter of the abutting portion is adapted to the outer diameter of the first sealing ring, the inner diameter of the inserting portion is adapted to the outer diameter of the sleeve, and the sleeve is arranged between the inserting portion and the connecting portion.

[0007] By adopting the above technical solution, first, the sleeve is taken through the battery assembly to connect the hole position, and then the screw sleeve with the first sealing ring is taken to cooperate with the bushing. At this time, due to the role of the hole position and the first sealing ring, the components will not be easily separated after the assembly is completed, and the bushing will not fall off. The operation is simple and convenient, and the assembly efficiency is high.

[0008] The present invention is further provided with: an annular mounting groove is provided at one end of the head corresponding to the connecting portion, a second sealing ring is interference fit in the mounting groove, and the second sealing ring is provided between the abutting portion and the head.

[0009] By adopting the above technical solution, a first sealing ring is provided above the threaded section and a second sealing ring is provided on the supporting surface at the lower end of the head, thereby ensuring that water does not enter the battery pack even when it is soaked in water, thereby providing multiple protections.

[0010] The present invention is further provided with: an annular recess is provided on one side of the second sealing ring corresponding to the mounting groove, and an annular protrusion is provided on one side of the second sealing ring corresponding to the bushing.

[0011] By adopting the above technical solution, an annular recess is provided on one side of the second sealing ring corresponding to the installation groove. When the second sealing ring is squeezed, the stress during installation is relieved and the service life of the sealing ring is extended. An annular convex portion is provided on one side of the second sealing ring corresponding to the bushing to further enhance the sealing performance.

[0012] The utility model is further provided with: the upper end of the cross section of the annular protrusion is arranged in a trapezoidal shape, and the lower end is arranged in an arc shape.

[0013] By adopting the above technical solution and using a special second sealing ring, the sealing and waterproof performance of the connection is enhanced.

[0014] The utility model is further provided with: the battery cover plate includes a connecting hole adapted to the bushing and a mounting countersunk hole for accommodating the head, the connecting hole is connected to the mounting countersunk hole, the mounting channel is provided with a sealing hole adapted to the plug-in part at a position corresponding to the plug-in part, and the sealing hole is connected to the mounting channel.

[0015] By adopting the above technical solution, an assembly hole is reserved, the bushing and the screw sleeve are sealed together, and then the battery cover is sunk into the mounting countersunk hole, and the hexagonal head is driven to seal and tighten the connection again, making the connection tighter and the sealing performance better; a sealing hole is provided, and one end of the plug-in part is inserted into the sealing hole, so that the sealing connection between the two is more stable.

[0016] The utility model is further configured that: the number of the mounting ring grooves is 2.

[0017] By adopting the above technical solution, the sealing and waterproof performance is further enhanced.

[0018] The utility model is further configured that: the driving portion includes a hexagonal countersunk hole.

[0019] By adopting the above technical solution and using it in conjunction with a torque gun, the operation is simple, convenient and labor-saving.

[0020] The specific implementation of the present utility model is described below with reference to the accompanying drawings and examples. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 A cross-sectional view of an embodiment of the present utility model;

[0022] Figure 2 This is a cross-sectional view of a connector according to an embodiment of the present utility model;

[0023] Figure 3 This is a cross-sectional view of the battery assembly and the sleeve in a separated state according to an embodiment of the present utility model;

[0024] Figure 4 This is a cross-sectional view of the assembly process of the battery assembly, sleeve and battery cover according to an embodiment of the present invention;

[0025] Figure 5 This is a cross-sectional view of the second sealing ring of an embodiment of the present utility model.

[0026] Figure markings: 1. Battery assembly, 11. Mounting channel, 12. Limiting groove, 13. Sealing hole, 2. Battery cover, 21. Connecting hole, 22. Mounting countersunk hole, 3. Sleeve, 31. Limiting portion, 32. Annular sealing groove, 4. Sleeve, 41. Head, 411. Driving portion, 412. Mounting groove, 42. Connecting portion, 421. Mounting section, 422. Threaded section, 423. Mounting ring groove, 5. Bushing, 51. Abutting portion, 52. Inserting portion, 6. First sealing ring, 7. Second sealing ring, 71. Annular recess, 72. Annular protrusion. DETAILED DESCRIPTION

[0027] This specific embodiment is merely an explanation of the present invention and is not a limitation of the present invention. After reading this specification, those skilled in the art may make non-creative modifications to the present embodiment as needed. However, as long as they are within the scope of the claims of the present invention, they are protected by patent law.

[0028] See attached Figure 1-5The present embodiment discloses a connection assembly for connecting a battery pack, comprising a sleeve 3, a screw sleeve 4, and a bushing 5. One end of the sleeve 3 is threadedly connected to the screw sleeve 4 through the installation channel 11 of the battery assembly 1, and a limiting portion 31 is provided at the other end. The installation channel 11 is provided with a limiting groove 12 corresponding to the position of the limiting portion 31. The bushing 5 is hollow and sleeved outside the screw sleeve 4. The screw sleeve 4 includes a head 41 and a connecting portion 42. The head 41 is provided with a driving portion 411 for driving the screw sleeve 4 to tighten. The connecting portion 42 passes through the bushing 5, the battery cover 2, and the sleeve 3. Threaded connection, the screw sleeve 4 and the sleeve 3 are both hollow and open at both ends, the connecting portion 42 includes a mounting section 421 and a threaded section 422, the mounting section 421 is arranged between the threaded section 422 and the head 41, and one or more mounting ring grooves 423 are provided on the mounting section 421, and a first sealing ring 6 is provided in the mounting ring groove 423. An annular sealing groove 32 adapted to the first sealing ring 6 is provided at one end of the sleeve 3 corresponding to the connecting portion 42, and an internal thread adapted to the threaded section 422 is provided between the annular sealing groove 32 and the limiting portion 31.

[0029] This embodiment is further configured as follows: the bushing 5 is sleeved on the outside of the connecting portion 42, the bushing 5 includes an abutting portion 51 and an inserting portion 52, the inner diameter of the abutting portion 51 is adapted to the outer diameter of the first sealing ring 6, the inner diameter of the inserting portion 52 is adapted to the outer diameter of the sleeve 3, and the sleeve 3 is arranged between the inserting portion 52 and the connecting portion 42.

[0030] This embodiment further provides that: an annular mounting groove 412 is provided at one end of the head portion 41 corresponding to the connecting portion 42 , a second sealing ring 35 is interference fit in the mounting groove 412 , and the second sealing ring 35 is provided between the abutting portion 51 and the head portion 41 .

[0031] This embodiment further provides that: an annular recess 71 is provided on a side of the second sealing ring 35 corresponding to the mounting groove 412 , and an annular protrusion 72 is provided on a side of the second sealing ring 35 corresponding to the bushing 5 .

[0032] This embodiment further provides that: the upper end of the cross section of the annular protrusion 72 is arranged in a trapezoidal shape, and the lower end is arranged in an arc shape.

[0033] This embodiment further provides: the battery cover plate 2 includes a connecting hole 21 adapted to the bushing 5 and a mounting countersunk hole 22 for accommodating the head 41, the connecting hole 21 is connected to the mounting countersunk hole 22, the mounting channel 11 is provided with a sealing hole 13 adapted to the plug-in portion 34 at a position corresponding to the plug-in portion 34, and the sealing hole 13 is connected to the mounting channel 11.

[0034] This embodiment further provides that: the number of the mounting ring grooves 423 is 2.

[0035] This embodiment further provides that: the driving portion 411 includes a hexagonal countersunk hole.

[0036] The above-mentioned “between” does not only refer to directions and positions, but also includes the meaning of the interactions between different parts.

[0037] Although this document frequently uses terms such as battery assembly 1, mounting channel 11, limiting groove 12, sealing hole 13, battery cover 2, connecting hole 21, mounting counterbore 22, connecting assembly 3, sleeve 31, limiting portion 311, annular sealing groove 312, screw sleeve 4, head 41, driving portion 411, mounting groove 412, connecting portion 42, mounting section 421, threaded section 422, mounting annular groove 423, bushing 5, abutting portion 51, plug-in portion 52, first sealing ring 6, and second sealing ring 7, the possibility of using other terms is not excluded. The use of these terms is merely to more conveniently describe and explain the essence of the present invention; interpreting them as any additional limitations is contrary to the spirit of the present invention.

Claims

1. A connection assembly for connecting a battery pack, characterized in that: The invention comprises a sleeve, a screw sleeve and a bushing, wherein one end of the sleeve is threadedly connected to the screw sleeve from the mounting channel of the battery assembly, and a limiting portion is provided at the other end, and a limiting groove is provided at the position of the mounting channel corresponding to the limiting portion, and the bushing is hollow and sleeved on the outside of the screw sleeve, and the screw sleeve comprises a head and a connecting portion, and the head is provided with a driving portion for driving the screw sleeve to tighten, and the connecting portion is threadedly connected to the sleeve through the bushing and the battery cover plate, and the screw sleeve and the sleeve are both hollow and open at both ends, and the connecting portion comprises a mounting section and a threaded section, and the mounting section is arranged between the threaded section and the head, and more than one mounting ring groove is provided on the mounting section, and a first sealing ring is provided in the mounting ring groove, and an annular sealing groove adapted to the first sealing ring is provided at one end of the sleeve corresponding to the connecting portion, and an internal thread adapted to the threaded section is provided between the annular sealing groove and the limiting portion.

2. A connection assembly for connecting a battery pack according to claim 1, characterized in that: The bushing is sleeved outside the connecting portion, and includes an abutting portion and an inserting portion. The inner diameter of the abutting portion is adapted to the outer diameter of the first sealing ring, and the inner diameter of the inserting portion is adapted to the outer diameter of the sleeve. The sleeve is arranged between the inserting portion and the connecting portion.

3. The connection assembly for connecting a battery pack according to claim 2, characterized in that: An annular mounting groove is provided at one end of the head corresponding to the connecting portion, a second sealing ring is interference fit in the mounting groove, and the second sealing ring is provided between the abutting portion and the head.

4. The connection assembly for connecting a battery pack according to claim 3, characterized in that: A side of the second sealing ring corresponding to the mounting groove is provided with an annular recess, and a side of the second sealing ring corresponding to the bushing is provided with an annular protrusion.

5. The connection assembly for connecting a battery pack according to claim 4, characterized in that: The upper end of the cross section of the annular protrusion is arranged in a trapezoidal shape, and the lower end is arranged in an arc shape.

6. The connection assembly for connecting a battery pack according to claim 2, characterized in that: The battery cover plate includes a connecting hole adapted to the bushing and a mounting countersunk hole for accommodating the head, the connecting hole is connected to the mounting countersunk hole, the mounting channel is provided with a sealing hole adapted to the plug-in part at a position corresponding to the plug-in part, and the sealing hole is connected to the mounting channel.

7. The connection assembly for connecting a battery pack according to claim 1, characterized in that: The number of the mounting ring grooves is 2.

8. The connection assembly for connecting a battery pack according to claim 1, characterized in that: The driving portion includes a hexagonal countersunk hole.

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