Search

CN-122015279-A - Drainage device for air conditioner capable of self-eliminating abnormal operation condition

CN122015279ACN 122015279 ACN122015279 ACN 122015279ACN-122015279-A

Abstract

The invention discloses a drainage device for an air conditioner, which can automatically eliminate abnormal operation conditions and comprises a main shell, a driving motor, a control module, a drainage impeller, a lower shell, a water inlet and a water outlet, wherein the control module is used for executing the control logic, the control logic comprises that A, when the driving motor normally operates, the driving motor Ma Dayi is controlled to operate in a first direction, namely, rotate positively, B, when the current value detected by a current detection unit is greater than a preset critical value, the microcontroller is used for controlling the driving motor to rotate reversely and then to operate normally, and C, the control module is used for calculating the times of controlling the driving motor to rotate reversely and controlling the driving motor to stop operating after accumulating the preset times.

Inventors

  • XIAO YUMING

Assignees

  • 东莞市东坑合利美电子电器有限公司

Dates

Publication Date
20260512
Application Date
20241112

Claims (10)

  1. 1. A drain device for an air conditioner capable of automatically removing abnormal operation conditions, comprising: A main housing; a driving motor arranged in the main shell; The control module is positioned in the main shell and is electrically connected with the driving motor, the control module stores a control logic, and the control module executes the control logic to control the driving motor to operate; a water discharge impeller connected to the driving motor and driven to rotate, and A lower shell body, which is covered below the main shell body and forms a sealed drainage chamber with the main shell body, wherein the lower shell body extends downwards to form a water inlet, one side of the lower shell body extends outwards to form a water outlet pipe transversely, and the water inlet and the water outlet pipe are both communicated with the drainage chamber; the method is characterized in that: The control module is provided with a current detection unit and a microcontroller, the control module detects the current of the electric energy consumed by the driving motor during operation by the current detection unit, and the control module drives the driving motor to operate by the microcontroller; the control logic includes the following A, B and C three points for the control module to execute: During normal operation, the drive Ma Dayi is controlled to operate in a first direction, namely forward rotation; B, when the current value detected by said current detection unit is greater than a preset critical value, said microcontroller can control said driving motor to reverse operation in said first direction, i.e. reverse operation, and after the preset time or period of reverse operation said driving motor can be controlled to change into normal operation, said condition is reverse operation once, and And C, the control module calculates the times of controlling the driving motor to reverse, and after accumulating the preset times, the microcontroller controls the driving motor to stop running.
  2. 2. The drain device for an air conditioner capable of automatically eliminating abnormal operation according to claim 1, wherein the lower casing has a circular wall surrounding a peripheral side of the drain chamber, the water outlet pipe is formed by extending radially outward of the circular wall to form a shape symmetrical to both sides of an axis of the water outlet pipe, the drain impeller has a spindle and a plurality of blades in a straight sheet shape extending radially of the spindle, and the plurality of blades are in a shape symmetrical to both sides of a longitudinal cross sectional line of the spindle.
  3. 3. The drain device for air conditioner capable of automatically eliminating abnormal operation according to claim 1, wherein the control module is electrically connected to an air conditioner, and the control logic further comprises the microcontroller sending an alarm signal to the air conditioner after controlling the driving motor to stop operating.
  4. 4. The drain device for air conditioner capable of automatically eliminating abnormal operation according to claim 1, wherein the control logic further comprises a control unit for controlling the driving motor to stop operation if the current value detected by the current detecting unit is still greater than the predetermined threshold value during the period in which the microcontroller controls the driving motor to reverse.
  5. 5. The drain device for an air conditioner capable of automatically eliminating abnormal operation according to claim 1, wherein the control logic further comprises a microcontroller for controlling the driving motor to stop operation if the microcontroller controls the driving motor to rotate forward for a predetermined time or a predetermined number of cycles and then to rotate backward for a predetermined time or a predetermined number of cycles when the current value detected by the current detecting unit is still greater than the predetermined threshold value while the microcontroller controls the driving motor to rotate backward.
  6. 6. The drain device for an air conditioner capable of automatically eliminating abnormal operation according to claim 1, wherein the microcontroller detects an operation state of the driving motor, and the control logic further comprises controlling the driving motor to reverse the first direction, i.e., reverse, when the operation state of the driving motor is detected as not being rotating, and controlling the driving motor to be operated normally after a predetermined time or a predetermined number of cycles of the reverse.
  7. 7. The drain device for air conditioner capable of self-eliminating abnormal operation according to claim 7, wherein the control logic further comprises controlling the driving motor to stop operation if the current value detected by the current detecting unit is greater than the predetermined threshold value or the driving motor is detected to be in a state of no rotation during the period that the microcontroller controls the driving motor to reverse.
  8. 8. The drain device for air conditioner capable of eliminating abnormal operation condition by itself according to claim 7, wherein the control logic further comprises controlling the driving motor to stop operation if the microcontroller controls the driving motor to rotate forward for a predetermined time or a predetermined number of cycles and then to rotate backward for a predetermined time or a predetermined number of cycles if the current value detected by the current detecting unit is still greater than the predetermined threshold value or the driving motor is not rotating during the period when the microcontroller controls the driving motor to rotate backward.
  9. 9. The drain device for air conditioner capable of self-eliminating abnormal operation according to claim 1, wherein the control logic further comprises increasing the rotational speed of the driving motor when the microcontroller controls the driving motor to reverse.
  10. 10. The drain device for air conditioner capable of automatically eliminating abnormal operation according to claim 1, wherein the control logic further comprises increasing the rotational speed of the driving motor for a period of time when the microcontroller controls the driving motor to rotate in a normal direction.

Description

Drainage device for air conditioner capable of self-eliminating abnormal operation condition Technical Field The present invention relates to a drainage device for an air conditioner, and more particularly, to a drainage device for an air conditioner capable of automatically eliminating abnormal operation conditions. Background Conventionally known drainage devices for air conditioning apparatuses are mounted on or near the air conditioning apparatus, and after a long period of operation, there is a possibility that dirt enters and causes abnormal operation, for example, a drainage efficiency is deteriorated due to a drainage impeller getting stuck to dirt and rotating slowly, or a so-called locked rotation is prevented due to a foreign matter sticking to the drainage impeller. Although some detection methods exist in the prior art, no technology has been proposed to eliminate the above-mentioned abnormal situation by using a reverse drain impeller. The taiwan patent No. M423752 discloses a direction control structure for a submersible motor blade, which is mainly based on that the blade is movable relative to the axis of the submersible motor, so that when the submersible motor rotates in the counter-clock direction, the blades can be pushed outwards to form a resistance braking effect, so that the rotator rotates in the counter-clock direction, and the blade is retracted into the fixed seat, thereby controlling the correct rotation direction of the submersible motor blade. The above-described technique is a technique for reversing the blade, but it is mainly because the blade is movable and the blade itself is to be corrected, irrespective of the person who is to eliminate the above-described abnormal situation, and therefore the above-described abnormal situation cannot be resolved. Accordingly, the present invention has been made in view of the above problems, and it is an object of the present invention to provide a drainage device for an air conditioner. Disclosure of Invention The present invention provides a drainage device for an air conditioner capable of automatically eliminating abnormal operation conditions, which can automatically reverse a drainage impeller to try to eliminate the abnormal conditions when the abnormal operation or the locked rotation conditions occur. In order to achieve the above object, the present invention provides a drain device for an air conditioner capable of automatically removing abnormal operation, comprising a main housing, a driving motor disposed in the main housing, a control module disposed in the main housing and electrically connected to the driving motor, the control module storing a control logic and executing the control logic to control the driving motor, a drain impeller connected to the driving motor to be driven to rotate, and a lower housing covering under the main housing and forming a sealed drain chamber with the main housing, the lower housing extending a water inlet from one side to the outside, the water inlet and the water outlet being both communicated with the drain chamber, wherein the control module has a current detecting unit and a Micro Controller (MCU) for detecting a current consumed by the driving motor during operation, the control module drives the driving motor by the micro controller, the control logic comprises a control unit A, B and a control unit for reversing the current to a predetermined number of times when the driving motor is controlled to be operated normally or reversely, the driving motor is controlled to a predetermined number of times, the driving motor is controlled to be reversed from a first time to a predetermined number of times when the driving motor is controlled to be driven normally or reversely, the driving motor is controlled to be driven to a predetermined number of times, the driving motor is controlled to be rotated reversely, the driving motor is controlled to be rotated normally by a predetermined number of times, the control unit is controlled to be rotated reversely, the driving motor is controlled to be a normal time is controlled to be a first time, a predetermined number of times is a predetermined value is a control unit is a normal, and a current is a control unit is rotated when the driving is a normal when the driving is a current is a normal, and a current is detected is a normal is a control is a reverse is detected when is a normal when is a is, the microcontroller controls the driving motor to stop running. Therefore, the invention can automatically reverse the water draining impeller to try to eliminate the abnormal condition when the abnormal operation or the locked rotation condition occurs. The invention will now be described in more detail with reference to the drawings and specific examples, which are not intended to limit the invention thereto. Drawings Fig. 1 is a front view of a first preferred embodiment of the present invention. Fig. 2 is an exploded view of a first preferred