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Connecting device

A connecting device and connecting body technology, which is applied in the direction of connecting components, pins, mechanical equipment, etc., can solve the problems of low replacement efficiency, complicated tooling process, high cost, etc., and achieve the effect of low installation cost, safe and reliable structure, and simple operation

Pending Publication Date: 2019-09-24
RICH HERO IND SHANGHAI CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] With the improvement of environmental protection awareness of green travel, zero-emission electric vehicles are gradually accepted by the society. The power of electric vehicles is provided by battery packs. Because new energy vehicles do not have drive shafts, the huge battery packs are placed in the front and rear axles of the chassis. Currently, the battery and chassis of new energy vehicles are connected by threads. The average weight of the battery pack is about 300 kg. Usually, more than 10 bolts are needed to achieve safe fixation. The battery pack is supported by the thread fastening force, and the thread is always in tension Stretched state, after a period of use, it will cause fatigue failure and affect the life. Seriously, it will cause the thread to fail and break, causing the battery pack to fall off and causing a safety hazard. Therefore, in order to ensure a safe connection, it is necessary to replace the connecting bolts or fastening bolts regularly.
In order to achieve safe fastening, it is necessary to use electric, pneumatic or manual wrenches with a fixed torque. The fastening tools are complex in process and high in cost. When the battery needs to be replaced, the number of connecting bolts is large, the replacement time exceeds 5 minutes, and the replacement efficiency is low.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] like figure 1 As shown, a connecting device, which includes a first connecting body 11 and a second connecting body 12;

[0030] The first connector 11 is provided with a connection cavity 110 for connecting the second connector 12;

[0031] The second connecting body 12 includes a first connecting main part 121 and a second connecting main part 122 that is matched with the first connecting main part 121 and can be movably socketed. A movable connection part 120 matching the connection cavity 110 is provided at a predetermined position. A first through hole 13 is provided at a third predetermined position of the first connecting body 11 , and an accommodating cavity for accommodating an elastic component 14 is provided in the second connecting main part 12 . Further, the movable connecting member 120 may be a device for increasing sliding friction such as a ball, a column, a pin, a wedge, a tooth, or a hook. figure 1 Take the ball as an example.

[0032] Further, th...

Embodiment 2

[0040] like Figure 4 As shown, a connecting device, which includes a first connecting body 41 and a second connecting body 32;

[0041] The first connector 41 is provided with a connection cavity for matching the second connector 42;

[0042] The second connecting body 42 includes a first connecting main part 421 and a second connecting main part 422 that matches with the first connecting main part 421 and can be movably socketed. A movable connection part 420 matching the connection cavity is provided at a predetermined position.

[0043] The above-mentioned connection device further includes that a transmission rack 423 is arranged on the surface of the end of the first connecting main part 421 contacting the second connecting main part 422, and the second connecting main part 422 A drive rack 424 matching the drive rack 423 is arranged on the top.

Embodiment 3

[0046] like Figure 5 As shown, a connecting device, which includes a first connecting body 51 and a second connecting body 32;

[0047] The first connector 51 is provided with a connection cavity for matching the second connector 52;

[0048] The second connecting body 52 includes a first connecting main part 521 and a second connecting main part 522 that matches with the first connecting main part 521 and can be movably socketed. A movable connection part 520 matching the connection cavity is provided at a predetermined position.

[0049] The above-mentioned connection device further includes that a transmission thread 523 is provided on the surface of the end of the first connecting main part 521 contacting the second connecting main part 522 , and on the second connecting main part 522 A driving device 524 matching the driving thread 523 is provided.

[0050] To cite a specific embodiment, test the pressure of the driving device 524 so that when the transmission thread ...

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PUM

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Abstract

The invention relates to the technical field of electric vehicles, in particular to a connecting device comprising a first connecting body and a second connecting body, wherein the first connecting body is provided with a connecting cavity for matching the second connecting body; the second connecting body comprises a first connecting main piece and a second connecting main piece that is movably sheathed in the first connecting main piece in a matching manner, and a movable connecting member matching the connecting cavity is arranged at a second predetermined position of the first connecting main piece. Only an external auxiliary assembling and disassembling tool is required to provide a pressure medium, which provides pressure to displace the first connecting main piece and the second connecting main piece to achieve the purpose of assembling and disassembling a battery. The connecting device has the advantages of no threaded connection, no risk of fatigue failure, safe and reliable structure, simple operation, short installation locking time and low installation cost, and special tools are not needed.

Description

technical field [0001] Embodiments of the present invention relate to the technical field of electric vehicles, and more specifically, to a connection device. Background technique [0002] With the improvement of environmental protection awareness of green travel, zero-emission electric vehicles are gradually accepted by the society. The power of electric vehicles is provided by battery packs. Because new energy vehicles do not have drive shafts, the huge battery packs are placed in the front and rear axles of the chassis. Currently, the battery and chassis of new energy vehicles are connected by threads. The average weight of the battery pack is about 300 kg. Usually, more than 10 bolts are needed to achieve safe fixation. The battery pack is supported by the thread fastening force, and the thread is always in tension If it is stretched, it will cause fatigue failure after a period of use, which will affect the service life. Seriously, it will cause the thread to fail and b...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16B13/10
CPCF16B13/04F16B13/10
Inventor 王吉虎李斌范志民
Owner RICH HERO IND SHANGHAI CO LTD