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Electric car transmission

A technology of electric vehicles and transmissions, which is applied in the direction of transmission, gear transmission, transmission control, etc., can solve the problems of inability to realize electronically controlled shifting and complex structure of the transmission, and achieve convenient shifting, reduce energy consumption, and save electric energy Effect

Pending Publication Date: 2018-07-06
臧宏
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved by the present invention is: the structure of the electric vehicle transmission in the prior art is complicated, and it is impossible to realize electronically controlled gear shifting.

Method used

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  • Electric car transmission
  • Electric car transmission
  • Electric car transmission

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] Example 1, such as figure 1 and 2 Shown:

[0022] An electric vehicle transmission, comprising a casing 1 and an input shaft 2, an output shaft 3, a shift shaft 4, a fast gear 5, a slow gear 6, a shift sliding sleeve 7, a cross pin 8, and a spring 9 installed in the casing 1 And the shift electromagnet 10, the fast gear 5, the slow gear 6, and the shift sleeve 7 are set on the shift shaft 4, the shift sleeve 7 is located between the fast gear 5 and the slow gear 6, and the shift sleeve 7 is slidably driven and cooperated with the shifting shaft 4, the fast gear 5 and the slow gear 6 rotate freely on the shifting shaft 4, the input shaft 2 and the fast gear 5 and the slow gear 6 are simultaneously transmitted through gear meshing, and the shifting The shaft 4 meshes with the output shaft 3 through the gear to output power. The shaft center of the shift shaft 4 has a shaft hole, and the shift shaft 4 has a chute hole 11 extending in the axial direction. The chute hole 1...

Embodiment 2

[0041] Example 2, such as image 3 and 4 Shown:

[0042] Compared with Embodiment 1, the difference is that the inner hole of the shift sleeve 7 has an inner spline, the shift shaft 4 has an outer spline, and the shift sleeve 7 directly passes through the inner spline of the inner hole of the shift sleeve 7. The key is drivingly engaged with the shift shaft 4 in a slidable manner. The ends of the fast gear 5 and the slow gear 6 facing the reversing slide have convex external splines, and the two ends of the shift shaft 4 have concave internal splines, and the shifting sleeve 7 passes through The inner splines mesh with the outer splines of the fast gear 5 and the slow gear 6 respectively to realize gear shifting.

Embodiment 3

[0043] Embodiment 3, compared with Embodiment 1, the difference is that: the positions of the fast gear 5 and the slow gear 6 relative to the shift sleeve 7 are reversed, when the first electromagnet 10-1 of the shift electromagnet 10 and the second electromagnet When iron 10-2 is powered off at the same time, the electric vehicle transmission is in low gear.

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Abstract

The invention relates to an electric car transmission comprising an outer shell and further comprises an input shaft, an output shaft, a gear shifting shaft, a rapid gear, a flow gear, a gear shiftingsliding sleeve, a transverse pin, a spring and a gear shifting electromagnet which are mounted in the outer shell, the gear shifting sliding sleeve and the gear shifting shaft are slidably matched ina driving mode, and the rapid gear and the slow gear freely rotate on the gear shifting shaft. The input shaft is in transmission with the rapid gear and the slow gear through gear engagement simultaneously, the gear shifting shaft is in engaged transmission with the output shaft through a gear. The spring and a pushing rod of the gear shifting electromagnet are mounted in the shaft hole of the axis center of the gear shifting shaft. The pushing rod of the gear shifting electromagnet overcomes elastic force of the spring to drive the gear shifting sliding sleeve to be separated from one of the rapid gear and the slow gear and engaged with the other gear, and thus gear shifting for speed change is achieved. The electric car transmission has the beneficial effects that electric control gearshifting can be achieved, compared with line pulling for gear shifting, the more convenient effect is achieved, through an automatic gear shifting controller, automatic gear switching can be achieved, energy consumption is reduced, and electric energy can be saved by 30%.

Description

technical field [0001] The invention relates to an electric vehicle transmission. Background technique [0002] The speed gears of electric three- and four-wheel vehicles are usually divided into first and second gears. The first gear has a low speed and the second gear has a high speed, which is convenient for heavy-duty electric vehicles to start. Matching gear shift synchronizer will lead to very complex structure and high cost. At the same time, the transmissions of electric vehicles all use manual cable shifting. Without a synchronizer, it is difficult to grasp the timing of shifting. Contents of the invention [0003] The technical problem to be solved by the present invention is: the structure of the electric vehicle transmission in the prior art is complicated, and it is impossible to realize electronically controlled gear shifting. [0004] The technical solution adopted by the present invention to solve the technical problem is: an electric vehicle transmission...

Claims

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Application Information

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IPC IPC(8): F16H3/083F16H37/08F16H63/30F16H61/28
CPCF16H3/083F16H37/08F16H61/28F16H63/30F16H2061/2853
Inventor 臧宏
Owner 臧宏
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