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Cooling device of elevator driving system

A drive system and cooling device technology, applied in cooling/ventilation devices, electromechanical devices, electric components, etc., can solve problems such as incomplete emission

Pending Publication Date: 2022-07-22
SHANGHAI MITSUBISHI ELEVATOR CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

There are also many manufacturers who package and integrate the inverter 6, the motor 2 and the reducer gearbox 3 as a whole, so that the total heat generated by the inverter 6, the motor 2 and the reducer gearbox 3 can only be dissipated through the casing. The way of wind cooling can no longer completely dissipate

Method used

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  • Cooling device of elevator driving system
  • Cooling device of elevator driving system
  • Cooling device of elevator driving system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] like figure 2 As shown, in the cooling device of the elevator drive system, there are two sets of cooling systems: a set of water cooling and a set of oil cooling. Among them, water can also use cooling liquid, such as alcohol type, glycerol type, ethylene glycol type cooling liquid, etc. The oil circuit of the oil cooling system includes: an oil cooler 1, a motor 2, a reducer gear box 3, an oil pump 11, a motor 2 and a reducer gear box 3 integrated together through a mechanical structure. After the main oil circuit is filled with oil, the cooling direction of the oil is as follows: First, the cooled oil from the oil cooler 1 first passes through the oil pump 11 to inject the oil into the gear box 3 of the reducer. After the gears are lubricated and cooled, they enter the rotor of the motor 2 through the oil passage in the connecting shaft of the reducer gearbox 3 and the motor 2 to cool the rotor. The silicon steel sheet is cooled, and then flows along the oil passa...

Embodiment 2

[0045] like image 3 , the whole cooling scheme is basically the same as that of Example 1, the only difference is the oil cooler 1. The oil cooler 1 of Example 1 cools the oil by itself, while the oil cooler 1 of Example 2 contains water channels, which are cooled by Water, which can take away part of the heat of the oil, accelerate the cooling of the oil. Therefore, the oil circuit of the oil cooling system is exactly the same as that of Example 1.

[0046] The water circuit of the water cooling system includes: an inverter 6 , a motor 2 , a water pump 7 , a rectifier 8 , a water tank 9 , a water cooler 10 , and an oil cooler 1 . After the water pipe is filled with cooling water, the cooling direction of the water is as follows: First, the cooling water from the water cooler 10 first enters the inverter 6, and after cooling its power module, it passes through the inverter 6 and the motor 2 casing. The connection channel of the motor enters the motor housing to cool the mot...

Embodiment 3

[0048] like Figure 4 , the entire cooling scheme is basically the same as that of Embodiment 1, the only difference is that the rectifier 8 is installed on the heat dissipation block of the water cooler 10 , and the modules of the rectifier 8 are cooled by the water cooler 10 . Therefore, the oil circuit of the oil cooling system is exactly the same as that of Example 1.

[0049] The water circuit of the water cooling system includes: an inverter 6 , a motor 2 , a water pump 7 , a water tank 9 , and a water cooler 10 . After the water pipe is filled with cooling water, the cooling direction of the water is as follows: First, the cooling water from the water cooler 10 first enters the inverter 6, and after cooling its power module, it passes through the inverter 6 and the motor 2 casing. The connection channel of the motor enters the motor housing to cool the motor 2. Then it flows out from the water outlet of the motor 2 and enters the water tank 9. The water pump 7 absorbs...

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PUM

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Abstract

The invention discloses a cooling device of an elevator driving system, which comprises the elevator driving system comprising an inverter, a motor, a rectifier and a speed reducer gear box; and the at least one liquid medium cooling loop is used for carrying out circulating cooling on the whole or part of heating components of the inverter, the motor, the rectifier and the speed reducer gear box. According to the invention, through two sets of cooling loops of the water path and the oil path, heat dissipation is fully carried out on main heating parts of the elevator, such as an inverter, a rectifier, a motor and a speed reducer gear box. In order to reduce the cost and the size of the cooling system, the rectifier or inverter module is installed on the heat dissipation surface of the water cooler, and radiators of the rectifier or inverter module and the water cooler are omitted. A water cooler and an oil cooler can be replaced by a water-oil cooler.

Description

technical field [0001] The invention relates to the field of elevators, in particular to a cooling device for an elevator drive system. Background technique [0002] figure 1 It is the basic structure of the elevator system. The rectifier 8 converts the alternating current 16 of the grid into direct current, and the inverter 6 converts the direct current into alternating current of variable voltage and frequency to drive the motor 2 to rotate. Now the motor of the elevator generally directly drives the traction sheave 15, Through the wire rope 17, the car 14 and the counterweight 13 are driven to move up and down the hoistway. In order to reduce the volume of the motor 2, there are also elevators in which the motor 2 first drives the reducer gearbox 3, and then drives the traction sheave 15 after deceleration. The main heating components when the elevator is running are the rectifier 8 , the inverter 6 , the motor 2 and the reducer gearbox 3 . When the rectifier 8 and the...

Claims

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Application Information

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IPC IPC(8): H02K9/19H05K7/20
CPCH02K9/19H05K7/20927
Inventor 刘玉兵
Owner SHANGHAI MITSUBISHI ELEVATOR CO LTD