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Resistor for controlling fan motor rotational speed in air conditioning device

A technology for fan motors and air-conditioning equipment, applied in the direction of non-adjustable metal resistors, resistors, resistor parts, etc.

Inactive Publication Date: 2008-11-26
JS TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This problem occurs more frequently if the thermal fuse is attached to the top of the radiator and exposed to the outside world, as in motor vehicles in recent years

Method used

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  • Resistor for controlling fan motor rotational speed in air conditioning device
  • Resistor for controlling fan motor rotational speed in air conditioning device
  • Resistor for controlling fan motor rotational speed in air conditioning device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0017] The following will refer to Figure 1 to Figure 6 Preferred embodiments of the present invention are described in detail.

[0018] Referring first to the description of the first embodiment of the present invention Figure 1 to Figure 3 , the resistor for controlling the speed of the fan motor comprises a base body 3 which receives a plurality of step-based power connections 1 and main power connections 2 . A radiator 4 with a plurality of radiator fins is installed on the top of the base body 3 , and a plurality of coupling notches 5 are formed on the other side opposite to the radiator 4 .

[0019] A sheet-shaped printed resistor circuit board 8 is connected to the step-based power connection 1 and the main power connection 2 . The printed resistor circuit board 8 is covered by spacers 6 and 7 at its front and rear surfaces, and the printed resistor circuit board 8 is accommodated inside the heat sink 4 .

[0020] A thermal fuse 13 is provided between the connectio...

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PUM

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Abstract

Provided is a resistor for controlling a fan motor rotating speed for use in an air conditioner. The resistor comprises a base body, a radiator attached to a top portion of the base body, a printed resistor circuit board covered with insulating sheets and received within the radiator, a fixture plate placed on a front surface of the radiator to isolate the printed resistor circuit board from the outside, and a temperature fuse spot-welded to upper connecting tip ends of the printed resistor circuit board at a top portion of the radiator. A fastener portion of an arc shape is formed on a top portion of the fixture plate to wrap around and fixedly support the temperature fuse. This reduces the manufacturing cost of the resistor, while improving the manufacturability and reliability thereof.

Description

technical field [0001] The invention relates to a resistor (resistor) used for controlling the rotational speed of a fan motor in an air conditioner. Background technique [0002] Conventional motor vehicles must be provided with cooling or heating devices for air conditioning purposes. Under the action of a motor-driven fan, cool or warm air generated by the cooling or heating unit is forced into the passenger compartment of the vehicle. [0003] This air conditioning system is constructed such that the driver can adjust the strength of cold air or hot air to three to four levels, for example, light wind, moderate wind, and strong wind, so as to optimize the room temperature in the vehicle. [0004] By setting the rotational speed of the fan as the air delivery means (ie the rotational speed of the motor as the fan drive means) in a stepwise manner, a stepwise adjustment of the air intensity becomes possible. In this regard, a resistor is used as a means for controlling t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02P29/00H02H7/085H05K1/16H01C1/00H01C1/01H01C1/02H01C1/08H01C3/00H01C13/02
CPCB60H1/00521B60H1/12B60Y2304/07
Inventor 韩兴洙
Owner JS TECH