A drying mode switching structure of a condensing direct drainage drying washing machine

Abstract

The utility model discloses a drying mode switching structure of condensation direct -discharge drying washing machine belongs to the washing drying equipment technical field, it includes switching switch and apron, and switching switch is connected with the main control board of drying washing machine through the wire, is provided with trigger on the apron, and the trigger is used for controlling switching switch. When the apron closes the second air duct, the trigger acts on switching switch and makes switching switch send the signal of using condensation drying mode to the main control board, when the apron removes from the exhaust fan, the trigger leaves switching switch and makes switching switch send the signal of using direct -discharge drying mode to the main control board. Compared with the former two -step operation of needing operating touch -control panel and apron, the utility model simplifies the operation step. Moreover, the utility model avoids the condition of the invalid work of exhaust fan caused by forgetting to take down apron when using direct -discharge drying mode.

Description

Technical Field

[0001] This utility model relates to a drying mode switching structure for a condenser direct-vent dryer washing machine, belonging to the technical field of washing and drying equipment. Background Technology

[0002] A condenser direct-vent dryer washing machine adds a drying function to the traditional washing machine, integrating washing, spin-drying and drying functions into one unit, and provides two drying modes: condenser drying mode and direct-vent drying mode.

[0003] Specifically, such as Figure 7 As shown, this type of dryer (1) is equipped with a first air duct (2) and a second air duct (3). The air inlet and outlet of the first air duct (1) are connected to the rear and front of the washing tub (4), respectively. A condenser (5), a blower (6), and a heater (7) are arranged sequentially from upstream to downstream along the airflow direction in the first air duct (1). The condenser can be cooled by spray cooling, heat exchange tube cooling, or other cooling methods. The air inlet and outlet of the second air duct (3) are connected to the rear side of the washing tub (4) and the outside of the dryer, respectively. An exhaust fan (8) is provided at the outlet of the second air duct (3).

[0004] When the condenser drying mode is running, the exhaust fan (8) is turned off, and the condenser (5), blower (6), and heater (7) are started. The hot and humid air is drawn from the washing tub (4) into the first air duct (1) under the action of the blower pump. After being condensed by the condenser (4), it forms condensate and dry air. The dry air is heated by the heating gas and then returned to the washing tub (4) to continue drying the clothes.

[0005] When operating the direct-vent drying mode, the exhaust fan (8), condenser (5), blower (6), and heater (7) are all activated. The blower (6) circulates the air in the washing tub and the air drawn in from the detergent dispenser and other parts through the washing tub and the first air duct. Some of the hot and humid air is then discharged from the dryer through the second air duct (3) under the action of the exhaust fan (8), accelerating the drying process. The direct-vent drying mode has a better drying effect when the indoor temperature is low.

[0006] Currently, in condenser direct-vent drying washing machines, switching to condenser drying mode requires selecting the condenser drying mode on the control panel and installing a cover on the exhaust fan (8) to block the second air duct (3). Switching to direct-vent drying mode requires selecting the direct-vent drying mode on the control panel and removing the cover; that is, switching between any modes requires two steps. Figure 8As shown, in the traditional control method, the drying mode is switched via a touch button connected to the MCU main control board. The first touch of the button activates the condensation drying mode; a second touch activates the direct exhaust mode. Currently, this switching method has a problem when using the direct exhaust drying mode: forgetting to remove the cover can cause the exhaust fan to malfunction. Utility Model Content

[0007] In order to solve the problems existing in the prior art, this utility model provides a drying mode switching structure for a condenser direct-vent dryer washing machine, which can switch drying modes more conveniently and quickly.

[0008] This utility model achieves the above objectives by adopting the following technical solutions: A drying mode switching structure for a condenser direct-vent drying washing machine includes a switching switch and a cover plate. The switching switch is installed on the casing of the drying washing machine and is connected to the main control board of the drying washing machine via a wire. The switching switch is used to switch between condenser drying mode and direct-vent drying mode. The cover plate is detachably mounted on the exhaust fan. The cover plate is equipped with a trigger. The cover plate is used to close and open the exhaust channel of the exhaust fan. The trigger is used to control the switching switch. When the cover plate closes the exhaust channel, the trigger acts on the switch to send a signal to the main control board to adopt the condensation drying mode; when the cover plate is removed from the exhaust fan, the trigger moves away from the switch to send a signal to the main control board to adopt the direct exhaust drying mode.

[0009] Optionally, the trigger acts on the switch by applying pressure to switch its operating state.

[0010] Specifically, the trigger is composed of a pressing plate and a connecting plate. The pressing plate is used to press on the switch, and the connecting plate is connected to the cover plate.

[0011] Typically, the switching switch is a push-button spring switch.

[0012] Specifically, the switch outputs a low-level signal when the triggered element is pressed, and outputs a high-level signal when it is not pressed.

[0013] In one specific embodiment, the cover plate is bolted to the exhaust fan.

[0014] The beneficial effects of this utility model include, but are not limited to: The present invention provides a drying mode switching structure for a condenser direct-vent dryer. When the cover closes the second air duct, a trigger acts on the switch, causing the switch to send a signal to the main control board to activate the condenser drying mode. When the cover is removed from the exhaust fan, the trigger moves away from the switch, causing the switch to send a signal to the main control board to activate the direct-vent drying mode. Compared to the previous two-step operation requiring the use of both the touch panel and the cover, this invention simplifies the operation. Furthermore, when using the direct-vent drying mode, this invention avoids the situation where forgetting to remove the cover would render the exhaust fan ineffective. Attached Figure Description

[0015] The accompanying drawings, which are included to provide a further understanding of the present invention and constitute a part of this invention, illustrate exemplary embodiments of the present invention and, together with the description thereof, serve to explain the present invention and do not constitute an undue limitation thereof. In the drawings: Figure 1 A schematic diagram of the switching structure provided by this utility model installed on a dryer / washing machine. Figure 1 ; Figure 2 for Figure 1 Enlarged view of section A; Figure 3 A schematic diagram of the switching structure provided by this utility model installed on a dryer / washing machine. Figure 2 ; Figure 4 for Figure 1 Enlarged view of section B; Figure 5 A schematic diagram of the switching structure and exhaust fan provided by this utility model; Figure 6 This is a schematic diagram illustrating the switching method of the drying mode of this utility model; Figure 7 A schematic diagram of the air duct for direct discharge drying and condensation drying modes; Figure 8 This is a schematic diagram illustrating the switching method of drying modes in traditional methods; In the diagram, 1 is a dryer / washing machine; 2 is the first air duct; 3 is the second air duct; 4 is the washing tub; 5 is the condenser; 6 is the blower; 7 is the heater; 8 is the exhaust fan; 81 is the threaded hole; 100 is the switch; 200 is the cover plate; 210 is the connection hole; 300 is the trigger element; 310 is the pressing plate; and 320 is the connecting plate. Detailed Implementation

[0016] To clearly illustrate the technical features of this solution, the present invention will be described in detail below through specific embodiments and in conjunction with the accompanying drawings.

[0017] It should be noted that many specific details are set forth in the following description to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the scope of protection of the present invention is not limited to the specific embodiments disclosed below.

[0018] like Figures 1-7 As shown, the drying mode switching structure of the condenser direct-vent drying washing machine provided by this utility model includes a switch 100 and a cover plate 200. The switch 100 is installed on the casing of the drying washing machine 1, usually at the rear of the casing. The switch 100 is connected to the main control board of the drying washing machine via a wire, and the switch 100 is used to switch between condenser drying mode and direct-vent drying mode.

[0019] Furthermore, the cover plate 200 is detachably mounted on the exhaust fan 8, and a trigger 300 is provided on the cover plate 200. The cover plate 200 is used to close and open the exhaust channel of the exhaust fan, and the trigger 300 is used to control the switching switch 100.

[0020] When the cover plate 200 closes the exhaust duct, the trigger 300 acts on the switch 100, causing the switch 100 to send a signal to the main control board to switch to condensation drying mode. When the cover plate 200 is removed from the exhaust fan 8, the trigger 300 leaves the switch 100, causing the switch 100 to send a signal to the main control board to switch to direct exhaust drying mode, making operation simple. Furthermore, this invention requires the cover plate to be removed when switching drying modes, avoiding the situation where forgetting to remove the cover when using direct exhaust drying mode would render the exhaust fan ineffective.

[0021] Furthermore, the trigger 300 applies pressure to the switch 100 to switch its working state.

[0022] Specifically, the trigger 300 is composed of a pressing plate 310 and a connecting plate 320 connected together. The pressing plate 310 is used to press against the changeover switch 100, and the connecting plate 320 is connected to the cover plate 200. When the cover plate is installed on the exhaust fan, the position of the pressing plate corresponds exactly to the changeover switch. It should be noted that the trigger is not limited to the structure shown in the figure, as long as it can be pressed against the changeover switch with the cover plate.

[0023] Typically, the toggle switch is a push-button spring switch. After the cover plate is installed, the push-button spring switch moves downward under the pressure of the trigger element. After the cover plate is removed, the trigger element moves away from the push-button spring switch, and the switch resets.

[0024] To facilitate the installation and removal of the cover plate, the cover plate 200 is generally connected to the exhaust fan 8 with screws. In actual operation, threaded holes 81 are provided at the four corners of the exhaust fan 8 housing, and connecting holes 210 are drilled on the cover plate 200. The cover plate 200 is then connected to the exhaust fan 8 with screws.

[0025] Preferably, an external protrusion can be provided on the casing of the exhaust fan, and the threaded hole 81 can be located on the external protrusion to avoid affecting the structure of the exhaust fan.

[0026] like Figure 6 As shown, when the cover is removed, the switch K1 is not pressed and is in the off state. The MCU main control board receives a high-level signal from K1 and adopts the direct discharge drying mode.

[0027] When the cover is installed, the switch K1 is pressed by the trigger and is in the closed state. The MCU main control board receives a low-level signal from K1 and adopts the condensation drying mode.

[0028] Specifically, when the switch is open, the voltage is pulled up to a high level of 5V through a pull-up resistor R=10k; when the switch is closed, it is grounded and outputs a low level of 0V.

[0029] The MCU main control board receives and analyzes input signals from buttons, knobs, etc., and then controls the operation of loads such as the exhaust fan, condenser, and heater through drivers and relays. A display is also connected to the MCU main control board to show the operating parameters of the dryer / washing machine.

[0030] Specifically, under normal conditions without the cover installed, the switch sends a high-level signal to the main control board, which then controls the dryer to operate in direct-vent mode. When the cover is installed, the switch sends a low-level signal to the main control board, which then controls the dryer to operate in condensation mode.

[0031] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0032] In this utility model, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," "link," and "fix" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a communication connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0033] Any aspects of this utility model not described in detail are known to those skilled in the art.

Claims

1. A drying mode switching structure for a condenser direct-vent dryer, characterized in that, Includes a switch and a cover plate. The switch is installed on the casing of the dryer and is connected to the main control board of the dryer via a wire. The switch is used to switch between condensation drying mode and direct discharge drying mode. The cover plate is detachably mounted on the exhaust fan. A trigger is provided on the cover plate. The cover plate is used to close and open the exhaust channel of the exhaust fan. The trigger is used to control the switching switch. When the cover plate closes the exhaust channel, the trigger acts on the switch to send a signal to the main control board to adopt the condensation drying mode; when the cover plate is removed from the exhaust fan, the trigger moves away from the switch to send a signal to the main control board to adopt the direct exhaust drying mode.

2. The drying mode switching structure of the condenser direct-vent dryer washing machine according to claim 1, characterized in that, The triggering element applies pressure to the switch to change its working state.

3. The drying mode switching structure of the condenser direct-vent dryer according to claim 2, characterized in that, The trigger is composed of a pressing plate and a connecting plate. The pressing plate is used to press on the switch, and the connecting plate is connected to the cover plate.

4. The drying mode switching structure of the condenser direct-vent dryer according to claim 1, characterized in that, The switch is a push-button spring switch.

5. The drying mode switching structure of the condenser direct-vent dryer according to claim 1, characterized in that, The switch outputs a low-level signal when the trigger is pressed and a high-level signal when it is not pressed.

6. The drying mode switching structure of the condenser direct-vent dryer according to claim 1, characterized in that, The cover plate is bolted to the exhaust fan.

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