JP2023167894A - dehumidifier - Google Patents

Abstract

To provide a dehumidifier including an air cleaning filter which is configured to easily set a case where the dehumidifier is operated with a quite operation sound, and a case where air cleaning is simultaneously performed together with dehumidification.SOLUTION: A dehumidifier includes a housing 10 formed with a suction port 11 and an outlet 12; and air cleaning filters 41 and 42, dehumidification means for removing moisture in the air, and blowing means 21 for generating an air stream from the suction port to the outlet, inside the housing, and passes the air stream generated by the blowing means through the suction port, the air cleaning filter, the dehumidification means and the outlet, in this order. The dehumidifier includes: a filter air passage 44 for passing the air entering from the suction port to the dehumidification means through the air cleaning filter; a bypass air passage for guiding the air entering from the suction port to the dehumidification means without passing through the air cleaning filter; opening/closing means 51 for opening/closing the suction port of the bypass air passage 43; control means 16a for controlling opening/closing of the opening/closing means; and opening/closing indication means 111 for indicating the opening/closing state of the opening/closing means to the control means.SELECTED DRAWING: Figure 3

Description

The present disclosure relates to a dehumidifier.

A dehumidifier is described in Patent Document 1. This dehumidifier has an air cleaning function, and allows you to choose whether to focus on either air cleaning or dehumidifying operation.

This dehumidifier dehumidifies air taken in from an intake port by passing it through a heat exchanger. A filter is placed between the air intake port and the ventilation path of the heat exchanger so as not to cover part of the heat exchanger, a shutter is provided in the part where the filter does not cover the heat exchanger, and the shutter covers the heat exchanger. and an uncovered state can be selected.

JP2004-211913A

In the above-mentioned Patent Document 1, the shutter is operated manually or by providing a humidity sensor, and the shutter is opened until the humidity drops to a predetermined level, and the operation mainly focuses on dehumidification.After the humidity drops to the predetermined level, the shutter is closed. Although a configuration is disclosed in which the operation is performed mainly for air purification, in the disclosed configuration, when the opening/closing panel is closed, it is not known whether the shutter is currently open or closed. Furthermore, shutter settings are complicated when air purification operation is performed simultaneously with dehumidification operation.

The present disclosure has been made to solve the above problems. An object of the present disclosure is to provide a dehumidifier that can be easily set to operate the dehumidifier in a quiet operation mode or in a case where it is desired to perform dehumidification and air purification at the same time.

A dehumidifier according to the present disclosure includes a casing in which an inlet and an outlet are formed, an air purifying filter, a dehumidifying means for removing moisture from the air, and a flow from the inlet to the outlet. The airflow generated by the ventilation means passes through the suction port, the air purifying filter, the dehumidification means, and the air outlet in this order. A filter air path where air enters from the inlet passes through an air purifying filter and reaches the dehumidifying means, a bypass air path where air enters from the inlet goes to the dehumidifying means without passing through the air purifying filter, and a bypass air path. The device includes an opening/closing means for opening and closing the suction port of the air passage, a control means for controlling the opening and closing of the opening/closing means, and an opening/closing instruction means for instructing the control means to open/close the opening/closing means.

In addition, there is a housing in which an inlet and an outlet are formed, an air purifying filter, a dehumidifying means for removing moisture from the air, and an air blowing means for generating airflow from the inlet to the outlet. In a dehumidifier, the air flow generated by the blowing means passes through the suction port, the air purifying filter, the dehumidifying means, and the air outlet in this order, and the air that enters from the suction port passes through the air purifying filter and reaches the dehumidifying means. A filter air path, a bypass air path through which air enters from the suction port reaches the dehumidifying means without passing through the air purifying filter, an opening/closing means for opening and closing the suction port of the bypass air path, and a control for opening and closing the opening/closing means. and opening/closing display means for displaying the open/closed state of the opening/closing means.

According to the present disclosure, a bypass air path that does not pass through the air purifying filter is provided separately from a filter air path through which airflow passes through the air purifying filter, and an opening/closing means for opening and closing the suction port of the bypass air path, and an opening/closing means for opening and closing the opening/closing means. Equipped with a control means for controlling the operation and an opening/closing instruction means for instructing the control means to open/close the opening/closing means, the opening/closing means can be used when you want quiet operation or when you want to dehumidify and purify the air at the same time. It can be easily set using an opening/closing instruction means that instructs opening/closing. In dehumidification operation, if you want to operate quietly, you can also use a bypass air path that does not pass through the air purifying filter by using the opening/closing instruction means to instruct the opening/closing means to open the intake port of the bypass air path. Since the dehumidifying operation is performed using only the filter air path, pressure loss can be reduced and operational noise can be reduced compared to when dehumidifying operation is performed using only the filter air path. In addition, if you want to perform air purification operation at the same time as dehumidification operation, you can instruct only the filter air path that passes through the air purification filter by using the opening/closing instruction means to instruct the opening/closing means to close the intake port of the bypass air path. Compared to the case of operation using a bypass air passage that does not pass through an air purifying filter, the pressure loss is larger and the operating noise is louder, but air purification can be performed at the same time.

Further, since the opening/closing display means is provided to display the open/closed state of the opening/closing means, the open/closed state of the opening/closing means can be easily recognized visually, thereby providing a dehumidifier that is easy to use.

FIG. 2 is a rear view of the dehumidifier according to the first embodiment. 1 is a longitudinal cross-sectional view of the dehumidifier of Embodiment 1. FIG. 1 is a horizontal cross-sectional view of the dehumidifier of Embodiment 1. FIG. FIG. 3 is a diagram showing an example of an operation display section of the dehumidifier according to the first embodiment. FIG. 2 is a block diagram showing main control-related components of the dehumidifier of Embodiment 1. FIG. 2 is a flowchart of automatic dehumidification operation of the dehumidifier according to the first embodiment. 2 is a flowchart of automatic air cleaning operation of the dehumidifier according to the first embodiment. 2 is a flowchart of automatic dehumidifying air cleaning operation of the dehumidifier according to the first embodiment. FIG. 3 is a vertical cross-sectional view showing the air flow of the dehumidifier of Embodiment 1. FIG. FIG. 2 is a horizontal cross-sectional view showing the flow of air when the dehumidifier according to the first embodiment is operating with the flap open. FIG. 2 is a horizontal cross-sectional view showing the flow of air when the dehumidifier according to the first embodiment is operating with the flap closed. 7 is a diagram illustrating an example of an operation display section of a dehumidifier according to a second embodiment. FIG. 7 is a diagram illustrating an example of an operation display section of a dehumidifier according to a third embodiment. FIG. FIG. 7 is a horizontal cross-sectional view of a main part showing a stop position of a flap of a dehumidifier according to a fourth embodiment. FIG. 7 is a diagram showing an example of an operation display section of a dehumidifier according to a fourth embodiment. FIG. 7 is a diagram showing an example of an operation display section of a dehumidifier according to a fourth embodiment. FIG. 7 is a diagram showing an example of an operation display section of a dehumidifier according to a fourth embodiment.

Embodiments will be described below with reference to the accompanying drawings. The same reference numerals in each figure indicate the same or corresponding parts. Further, in this disclosure, overlapping explanations will be simplified or omitted as appropriate. Note that the present disclosure may include all combinations of configurations that can be combined among the configurations described in the embodiments below.

Embodiment 1.
FIG. 1 is a rear view of the dehumidifier 1 according to the first embodiment. FIG. 2 is a longitudinal sectional view of the dehumidifier 1 according to the first embodiment. FIG. 2 is a longitudinal cross-sectional view of the dehumidifier 1 according to the first embodiment, and is a view of the cross section taken along the line AA shown in FIG. 1 from the direction A. FIG. 3 is a horizontal cross-sectional view of the dehumidifier 1 according to the first embodiment. FIG. 3 is a cross-sectional view taken along the line BB shown in FIG. 1, viewed from the direction B. Arrows in each figure indicate front/back, left/right, and up/down directions. In this disclosure, in principle, the dehumidifier 1 will be explained based on a state in which the dehumidifier 1 is placed on a horizontal surface.

The dehumidifier 1 includes a case 10. The case 10 is an example of a housing that forms the outer shell of the dehumidifier 1. The case 10 is, for example, formed into a box shape that can stand on its own. Wheels 20 for moving the dehumidifier 1 may be provided at the bottom of the case 10.

In the first embodiment, case 10 includes a front case 10a and a rear case 10b. The front case 10a is a member that forms the front part of the case 10. The rear case 10b is a member that forms the back surface portion of the case 10. The rear case 10b is fixed to the front case 10a with, for example, screws.

A suction port 11 and a blowout port 12 are formed in the case 10 . The suction port 11 is an opening for taking air into the case 10 from the outside. The air outlet 12 is an opening for sending air from the inside of the case 10 to the outside. In the first embodiment, the suction port 11 is formed on the back surface of the case 10. The suction port 11 is formed in the rear case 10b. Further, in the first embodiment, the air outlet 12 is formed in the upper surface portion of the case 10.

The dehumidifier 1 includes a suction port cover 11a that covers the suction port 11. The suction port cover 11a is formed, for example, in a mesh shape. This suction port cover 11a prevents foreign matter from entering the inside of the case 10 through the suction port 11. The suction port cover 11a is, for example, formed to be detachably attached to the rear case 10b.

The dehumidifier 1 also includes a louver 13. The louver 13 is made of a plate-like member. The louver 13 is for adjusting the direction in which air is sent out from the outlet 12. The louver 13 is arranged near the air outlet 12. The louver 13 is connected to a louver drive motor 13b (see FIG. 5), and the attitude of the louver is changed. The control board 16a (see FIG. 5), which is an example of a control means, adjusts the direction in which air is sent out from the air outlet 12 by controlling the louver drive circuit 13b (see FIG. 5) that drives the louver drive motor 13b. do. Note that the control board 1a is housed inside a board box 16 formed of a metal plate or a case made of nonflammable heat-resistant plastic.

The dehumidifier 1 also includes an operation display section 15. The operation display section 15 is for a user to operate the dehumidifier 1. Further, the operation display section 15 displays the status of the dehumidifier 1 and the like to the user. Inside the case 10 facing the operation display section 15, an operation display board 15a for controlling the operation display section 15 is arranged. The operation display board 15a is connected to the control board 16a. The operation display board 15a is provided with an operation switch for starting/stopping the operation of the dehumidifier 1 and a switch for instructing the operation status such as selecting an operation mode. be done. Further, the operation display board 15a is provided with a liquid crystal display section and an LED for displaying the operating mode and other conditions instructed by the dehumidifier 1, and displayed via the operation display section 15. The operation display board 15a is arranged inside the rear case 10b. Note that the control board 16a may be configured to also serve as the function of the operation display board 15a.

A board box 16 containing a power supply board 16b (see FIG. 5) and a control board 16a is arranged in the rear case 10b. The power supply board 16b is supplied with power from the commercial power supply 17, and supplies power to the control board 16a, the louver drive motor 13b, a motor for driving the fan 21 and the flap 51, etc., which will be described later.

Furthermore, a fan 21 is provided as a means for sending air. The fan 21 is a device that takes air into the case 10 and sends the taken air to the outside of the case 10. Fan 21 is housed inside case 10.

A motor 21a is housed inside the case 10. The motor 21a is a device that rotates the fan 21. The fan 21 is a device that generates an airflow from the suction port 11 to the blowout port 12 in an air path from the suction port 11 to the blowout port 12 . In the first embodiment, the fan 21, the motor 21a, and the motor drive circuit 21b, which will be described later, are an example of a blowing means and are arranged inside the front case 10a. That is, it is placed on the front side of the dehumidifier 1. Motor 21a is connected to fan 21 via shaft 21b. The rotational operation of the motor 21a is controlled by a drive circuit 21b (see FIG. 5) that drives the motor 21a by a control board 16a.

Further, the dehumidifier 1 includes an evaporator 31, a condenser 32, a compressor 35 (see FIG. 5), and a pressure reducing device (not shown) as an example of a dehumidifying means for removing moisture contained in the air. The evaporator 31 and the condenser 32 together with the compressor and the pressure reduction device form a refrigerant circuit. An example in which the dehumidifying means is configured by a refrigerant circuit will be described below. The evaporator 31, the condenser 32, the compressor 35, and the pressure reducing device are housed in the case 10. A drive circuit 35a (see FIG. 5) that drives a compressor drive motor 35b of the compressor 35 is controlled by a control board 16a. In the first embodiment, the evaporator 31 and the condenser 32 are surrounded by the rear case 10b. The rear case 10b has a lattice portion 10c. The grid portion 10c is an opening having a cross-sectional area comparable to that of the evaporator 31. An evaporator 31, which is part of a heat exchanger to be described later, and a grid section 10c are arranged to face each other at a distance A across a first space 33. Furthermore, the activated carbon filter 42, which is part of the air purifying filter, and the lattice portion 10c are arranged to face each other at a distance B across the second space 34.

The evaporator 31, the compressor 35, the condenser 32, and the pressure reducing device are connected in order through a pipe (not shown) through which a refrigerant flows. A refrigerant circulates in a refrigerant circuit formed by an evaporator 31, a compressor 35, a condenser 32, and a pressure reducing device.

The evaporator 31 and the condenser 32 are heat exchangers for exchanging heat between refrigerant and air. The compressor 35 is a device that compresses refrigerant. A pressure reducing device is a device that reduces the pressure of a refrigerant. The pressure reducing device is, for example, an expansion valve or a capillary tube.

The dehumidifier 1 also includes a HEPA filter 41 and an activated carbon filter 42, which are air purifying filters for purifying the air, as an example of air purifying means for removing dust and odor from the air. The HEPA filter 41 and the activated carbon filter 42 are housed in the case 10. In the first embodiment, the HEPA filter 41 and activated carbon filter 42 are housed in the rear case 10b.

The HEPA filter 41 is a filter that collects fine dust in the air. The activated carbon filter 42 is a filter that deodorizes odors in the air. The activated carbon filter 42 is arranged with a distance B from the grid portion 10c. The HEPA filter 41 and activated carbon filter 42 are detachably provided from the rear case 10b. The lattice portion 10c is provided to prevent the user's fingers from touching the evaporator 31 disposed in the opposing interior when the HEPA filter 41 and activated carbon filter 42 are removed from the rear case 10b.

In the first embodiment, an air path leading from the suction port 11 to the blowout port 12 is formed inside the case 10 . In the air path, from the suction port 11, a suction port cover 11a, a HEPA filter 41, an activated carbon filter 42, an evaporator 31, a condenser 32, and a fan 21 are arranged in this order. A filter air path is a part of this air path where air enters from the suction port 11, passes through an air purifying filter, and reaches a heat exchanger serving as a dehumidifying means.

Here, the upstream side and the downstream side are determined using the airflow flowing through the air path leading from the inlet 11 to the outlet 12. For example, the side where the suction port 11 is located with respect to the heat exchanger is defined as the upstream side. Further, the side where the air outlet 12 is located with respect to the heat exchanger is defined as the downstream side.

In FIG. 3, bypass air passages 43 are provided adjacent to the left and right sides of the HEPA filter 41 and the activated carbon filter 42. The bypass air passage 43 is a space provided in the rear case 10b, and is an air passage through which air entering from the suction port 11 reaches a heat exchanger serving as a dehumidifying means without passing through an air purifying filter.

The bypass air passage 43 is an air passage through which air flows to the heat exchanger without passing through the HEPA filter 41 and the activated carbon filter 42. On the other hand, the air passage through which the airflow passes through the HEPA filter 41 and the activated carbon filter 42 and reaches the heat exchanger is referred to as a filter air passage 44. The bypass air passage 43 and the filter air passage 44 are arranged adjacent to each other on the left and right in parallel. By arranging the bypass air path 43, which is an air path that does not pass through the air purifying filter, and the filter air path 44, which is an air path that passes through the air purifying filter, adjacent to each other, the air path in the dehumidifier 1 can be made compact. Therefore, the dehumidifier 1 can be downsized. Note that when the dehumidifier 1 is viewed from the back, the length of the bypass air passage 43 in the vertical direction (vertical direction) is desirably set to be approximately the same as the length of the HEPA filter 41 in the vertical direction (vertical direction).

The airflow flowing into the bypass air passage 43 and the filter air passage 44 starts from the space downstream of the activated carbon filter 42, that is, the lattice portion 10c, and flows through the first space 33 and the second space having distances A and B, respectively. They merge in a space 34. That is, the air flows together before the evaporator 31 located downstream of the activated carbon filter 42, and thereafter flows through one air path. Although the first space 33 and the second space 34 are provided here, it is sufficient that the airflows flowing through the bypass air passage 43 and the filter air passage 44 can be combined before the evaporator 31, and at least the second space 34 is provided. It's good to have.

The bypass air passage 43 is provided with a pair of left and right air guide surfaces 43a at positions connected to the lattice portion 10c. The air guide surface 43a is for guiding the airflow that has passed through the bypass air path 43 toward the center of the windward side surface of the heat exchanger. Here, the direction of the airflow that has passed through the bypass air path 43 is changed to the lateral direction (azimuth direction). For example, the wind guide surface 43a is made of a flat surface. By adjusting the normal direction of this plane, the direction in which the airflow is guided can be adjusted. Further, the wind guide surface 43a may be formed of a curved surface. By adjusting the curvature of the curved surface, the spread of the airflow guided by the wind guide surface 43a can be adjusted. In this way, since the bypass air passage 43 is provided with the air guide surface 43a that guides the airflow of the bypass air passage 43 toward the center of the windward side surface of the heat exchanger, the airflow passing through the bypass air passage 43 is directed toward the center of the windward side surface of the heat exchanger. The dehumidification efficiency can be improved.

The bypass air passage 43 is provided with a flap 51 that is an opening/closing means for opening and closing the suction port of the bypass air passage 43. As shown in FIG. 3, the suction port of the bypass air passage 43 is a part of the suction port 11, and is a portion located outside the left and right outer edges of the windward end surface of the HEPA filter 41. The flap 51 is made of a plate-like member. The flap 51 is arranged on the downstream side of the suction port cover 11a. The flap 51 is arranged, for example, at the end opposite to the HEPA filter 41, that is, at the left end of the plate-like member on the left side with respect to the HEPA filter 41, and at the right end of the plate-like member on the right side with respect to the HEPA filter 41 (Fig. (not shown), and is driven by an opening/closing means driving motor (not shown). The opening/closing means driving motor is controlled by the control board 16a.

The flap 51 is an example of an opening/closing means for opening and closing the suction port of the bypass air passage 43. The flap 51 is driven by the opening/closing means driving motor 51b (see FIG. 5) around the rotating shaft from a position where the bypass air passage 43 is closed to a position where the bypass air passage 43 is opened in the downstream direction. A drive circuit 51a (see FIG. 5) that rotationally drives the opening/closing means drive motor 51b is controlled by a control board 16a.

In the first embodiment, a humidity sensor 61 is provided (see FIG. 3). Humidity sensor 61 is arranged inside case 10 . An opening (not shown) communicating with the outside of the case 10 is provided near the humidity sensor 61 of the case 10 . The humidity sensor 61 receives humidity detection information from the control board 16a, and can measure the relative humidity in the room. The measurement result of the humidity sensor 61 is displayed on the operation display unit 15 by the operation display board 15a to which the humidity detection information acquired by the control means 16a is transmitted.

It also has a dust sensor 62 (see FIG. 2). Dust sensor 62 is arranged inside case 10. An opening (not shown) communicating with the outside of the case 10 is provided near the dust sensor 62 of the case 10 . The dust sensor 62 receives dust detection information from the control board 16a, and can measure the amount and concentration of dust in the room. The dust sensor 62 has the ability to detect particles of 0.1 μm, for example. The detection result of the dust sensor 62 is displayed on the operation display section 15 by the operation display board 15a to which the dust detection information acquired by the control means 16a is transmitted.

It also has a gas sensor 63 (see FIG. 2). Gas sensor 63 is arranged inside case 10. An opening (not shown) communicating with the outside of the case 10 is provided near the gas sensor 63 of the case 10 . Gas detection information is acquired by the control board 16a, and the gas sensor 63 can measure the odor of indoor air. The measurement results of the gas sensor 63 are displayed on the operation display unit 15 by the operation display board 15a to which the gas detection information acquired by the control board 16a is transmitted.

Note that the dust sensor 62 and the gas sensor 63 may be collectively referred to as an air quality sensor that detects air pollution.

Next, the operation display section 15 of the dehumidifier 1 according to the first embodiment will be explained. FIG. 4 is a diagram showing an example of the operation display section 15 of the dehumidifier 1 according to the first embodiment.

The operation button 101 is for instructing to start or stop the operation of the dehumidifier 1, and displays the current operation status on the operation display 102. The operation button 101 presses a switch (not shown) arranged on the operation display board 15a via the operation display section 15. Further, the operation display 102 displays, via the operation display unit 15, whether an LED (not shown) arranged on the operation display board 15a is turned on or off. When the operation display 102 is lit, it means that the vehicle is in operation, and when it is turned off, it means that the vehicle is not operating.

In the dehumidifier 1, several preset operation modes are stored in the storage section 16a1 of the control board 16a. Examples of the operation modes include a dehumidification operation mode, an air purification operation mode, and a dehumidification air purification automatic operation mode.

The dehumidification button 103 is used to select a dehumidification operation mode, and the current operation mode is displayed on the dehumidification operation display 104. The dehumidification operation mode controls the compressor and air blowing means. For example, three dehumidifying operation modes, "strong," "weak," and "automatic," are set in advance and stored in the storage section 16a1 of the control board 16a. The dehumidification button 103 presses a switch (not shown) arranged on the operation display board 15a via the operation display section 15. Three preset dehumidification operation modes, "strong," "weak," and "automatic," can be selected using the dehumidification button 103. Further, the dehumidification operation display 104 displays, via the operation display unit 15, whether three LEDs (not shown) arranged on the operation display board 15a are turned on or off. The three LEDs correspond to three operation modes: "strong," "weak," and "automatic," and the operation mode in which the dehumidifying operation display 104 is lit means that the dehumidifier is currently in operation.

The air purification button 105 is used to select an air purification operation mode, and the current operation mode is displayed on the air purification operation display 106. In the air cleaning operation mode, the compressor is stopped and the blowing means is controlled. For example, three air cleaning operation modes, "strong," "weak," and "automatic," are set in advance and stored in the storage section 16a1 of the control board 16a. The air purification button 105 presses a switch (not shown) arranged on the operation display board 15a via the operation display section 15. Three preset air cleaning operation modes, "strong," "weak," and "automatic," can be selected using the air cleaning button 105. The air purification operation display 106 also displays, via the operation display section 15, whether three LEDs (not shown) arranged on the operation display board 15a are turned on or off. The three LEDs correspond to three operating modes: "strong", "weak", and "automatic", and the operating mode in which the air purifying operation display 106 is lit means that the air purifier is currently operating.

The dehumidifying air cleaning button 107 is used to select the dehumidifying air cleaning automatic operation mode, and displays the current operation mode on the dehumidifying air cleaning operation display 108. The dehumidifying air purifying automatic operation mode controls the compressor, blower means, and opening/closing means. For example, the dehumidifying air purifying automatic operation mode is set in advance and stored in the storage section 16a1 of the control board 16a. The dehumidification and air purification button 107 presses a switch (not shown) arranged on the operation display board 15a via the operation display section 15. A preset dehumidifying air purifying automatic operation mode can be selected using the dehumidifying air purifying button 107. Further, the dehumidifying and air purifying operation display 108 displays, via the operation display unit 15, whether an LED (not shown) disposed on the operation display board 15a is turned on or off. When the dehumidifying air purifying operation display 108 is lit, it means that the dehumidifying air purifying operation display 108 is currently in operation.

The dehumidifier 1 is operated by selecting one of three preset dehumidification operation modes, three air purification operation modes, and a dehumidification air purification automatic operation mode.

In the dehumidifier 1, several preset drive ranges of the louver drive motor 13b are stored in the storage section 16a1 (see FIG. 5) of the control board 16a. The control board 16a controls the louver drive circuit 13a of the louver drive motor 13b, thereby adjusting the direction in which air is sent out from the air outlet 12.

The wind direction button 109 is used to select a wind direction mode that controls the direction in which air is sent out from the air outlet 12, and displays the current wind direction mode on the wind direction display 110. For example, three wind direction modes, "stop," "forward," and "wide area" are set in advance and stored in the storage section 16a1 of the control board 16a. The wind direction button 109 is pressed via the operation display section 15 by pressing a switch (not shown) arranged on the operation display board 15a. The three preset wind direction modes of "stop," "forward," and "wide area" can be selected using the wind direction button 109. The wind direction display 110 also displays, via the operation display section 15, whether three LEDs (not shown) arranged on the operation display board 15a are turned on or off. The three LEDs correspond to three wind direction modes: "stop," "forward," and "wide area," and the mode in which the wind direction display 110 is lit means that it is currently selected.

A flap 51 that opens and closes the suction port of the bypass air path 43 is arranged in the dehumidifier 1 . The flap 51 is opened and closed by the control board 16a controlling the drive circuit 51a of the opening/closing means driving motor 51b that drives the flap 51 to open and close.

The air path button 111 is for selecting opening/closing of the flap 51, and is an example of an opening/closing instruction means for instructing the opening/closing operation of the flap 51, which is an opening/closing means. Then, the control board 16a, which is a control means, instructs the operation display board 15a to display the current open/closed state of the air path on the air path display 112. The air path display 112 is an example of an opening/closing display means that displays the open/closed state of the flap 51, which is an opening/closing means. For opening and closing of the flap 51, for example, "open" and "close" modes are set in advance and stored in the storage section 16a1 of the control board 16a. The air path button 111 is pressed via the operation display unit 15 by pressing a switch (not shown) arranged on the operation display board 15a. Two preset modes, “open” and “closed,” can be selected using the air path button 111. Further, the wind direction display 112 displays, via the operation display unit 15, whether two LEDs (not shown) arranged on the operation display board 15a are turned on or off. The two LEDs correspond to two modes, "open" and "closed", and the mode in which the air path display 112 is lit means the currently selected mode. The air path button 111 can be selected only when the dehumidification operation mode is "strong" or "weak". That is, the air path button 111 cannot be used in the dehumidification automatic operation mode, the three air purification operation modes, and the dehumidification air purification automatic operation mode.

The humidity display 113 displays the measurement results of the humidity sensor 61. The humidity display 113 is a display of a liquid crystal (not shown) placed on the operation display base 15a via the operation display unit 15, and displays the relative humidity as a two-digit number.

The dust display 114 displays the measurement results of the dust sensor 62. The dust display 114 is a display via the operation display unit 15 of whether two LEDs (not shown) arranged on the operation display base 15a are turned on or off, and the corresponding LEDs are turned on.

The odor display 115 displays the measurement results of the gas sensor 63. The odor display 115 is a display via the operation display section 15 of whether two LEDs (not shown) arranged on the operation display base 15a are turned on or off, and the corresponding LEDs are turned on.

Next, the operation of the dehumidifier 1 according to the first embodiment will be explained. As described above, the dehumidifier 1 according to the first embodiment is operated by selecting one of the three preset dehumidifying operation modes, the three preset air cleaning operation modes, and the dehumidifying air cleaning automatic operation mode.

When the dehumidifier 1 is stopped, the control board 16a controls the compressor drive motor 35b and the motor 21a to stop, and the louver 13 and the flap 51 are connected to the air outlet 12 and the inlet of the bypass air path 43, respectively. The louver drive circuit 13a of the louver drive motor 13b and the drive circuit 51a of the opening/closing means drive motor 51b are controlled so that the louver drive motor 13b is in a closed state.

First, the dehumidifying operation mode will be explained. The dehumidification operation mode is an operation mode for dehumidifying the room. The dehumidification operation mode controls the compressor and air blowing means. For example, three options are set in advance: "Strong," "Weak," and "Auto."

The dehumidification operation modes "Strong" and "Weak" dehumidify continuously. That is, the compressor and the blower are operated continuously. In the dehumidifying operation modes "strong" and "weak", the dehumidifying operation continues until the tank 14 (to be described later) is filled with water.

For example, when the user turns on the operation button 101 of the operation display section 15, the control board 16a controls the louver drive circuit 13a of the louver drive motor 13b so that the louver 13 opens the air outlet 12, and the dehumidifier 1 Start driving. When the dehumidification operation mode "Strong" or "Weak" is selected with the dehumidification button 103, the control board 16a controls the motor 21a so that the fan 21 rotates at the preset "Strong" or "Weak" rotation speed. While controlling the motor drive circuit 21b, the drive circuit 35a is also controlled to drive the compressor drive motor 35b, and the compressor 35 starts compressing the refrigerant.

"Strong" means that the fan 21 operates at the preset rotational speed at which the dehumidifying capacity reaches its maximum rating, and "Weak" means that the fan 21 operates at the preset rotational speed at which the dehumidifying capacity is reduced but the operating noise is reduced. Operate at the rotation speed of That is, between "strong" and "weak", the rotation speed of the fan 21 is higher in "strong".

Further, by using the wind direction button 109, a wind direction mode for controlling the direction in which air is sent out from the air outlet 12 can be selected. When "Stop" is selected, the louver 13 stops; when "Front" is selected, the louver 13 swings only forward from the vertical top of the main body; when "Wide area" is selected, the louver 13 swings forward from the vertical top of the main body. In addition to the direction, swing the entire area including the back.

Further, the air path button 111 can select whether to open or close the flap 51. When the flap 51 is "closed", the suction port of the bypass air passage 43 is closed. Since the bypass air passage 43 is closed, airflow passes only through the filter air passage 44 with respect to the air sucked into the case 10 through the suction port cover 11a. 41 and the activated carbon filter 42 are arranged, the pressure loss becomes larger than when the bypass air passage 43 is open. Therefore, when the same amount of air flows as when the bypass air passage 43 is open, the fan rotation speed is high, and the load on the motor 21a is also large, resulting in increased operating noise. However, since only the filter air passage 44 passes through, the air blown out from the outlet 12 of the dehumidifier 1 is cleaner than when the bypass air passage 43 is open.

On the other hand, when the flap 51 is "open", the suction port of the bypass air passage 43 is opened. Since the bypass air passage 43 is open, the air flow that is sucked into the case 10 passes through the bypass air passage 43 and the filter air passage 44 . Since the airflow passes through the bypass air passage 43 as well as the filter air passage 44, the pressure loss is smaller than when the bypass air passage 43 is closed. Therefore, when the same amount of air flows as when the bypass air passage 43 is closed, the fan rotation speed is small and the load on the motor 21a is also small, resulting in a reduction in operating noise. However, since the airflow also passes through the bypass air passage 43, the air blown out from the outlet 12 of the dehumidifier 1 cannot be cleaned as much as when the bypass air passage 43 is closed.

Since the rotation speed of the fan 21 of the ventilation means is controlled so that the amount of air passing through the heat exchanger is the same whether the flap 51 is "closed" or "open", the dehumidification capacity remains constant. It is. Therefore, if the flap 51 is set to "closed" while the dehumidification capacity remains constant, operation with high air purifying capacity is performed, and if the flap 51 is selected to be "open", operation is performed with low noise.

In the dehumidifying operation mode "auto", dehumidification is performed according to the detection result of the humidity sensor 61. That is, it controls the operation and stop of the compressor. The "automatic" dehumidification operation will be explained using the flowchart of FIG. 5.

For example, when the user turns on the operation button 101 of the operation display section 15, the control means controls the louver drive motor so that the louver 13 opens the air outlet 12 (S001), and the dehumidifier 1 starts operating. . Next, the control means controls the opening/closing means driving motor so that the flap 51 opens, thereby opening the suction port of the bypass air passage 43 (S002). The control means rotates the motor 21a, controls the fan 21 to rotate at a preset strong rotation speed (S003), and controls the compressor drive motor to drive the compressor. A refrigerant compression operation is started (S004). The control means causes the humidity sensor 61 to start detecting the humidity of the air around the humidity sensor 61, and determines whether the humidity is 50% or more (S005). If the humidity is 50% or more, the drive operation of the compressor drive motor is continued, a dehumidifying operation is performed (S006), and after a certain period of time, the process returns to step S005. If the humidity is less than 50%, the control means controls the compressor drive motor to stop driving, and the refrigerant compression operation of the compressor is stopped (S007). At this time, the control means controls the motor 21a to continue the rotational driving operation, and returns to step S005 after a certain period of time. As an example of operation, the threshold value of the humidity sensor is set to 50%, but the threshold value may be a value other than this.

Next, the air purifying operation mode will be explained. The air cleaning operation mode is an operation mode for cleaning the air indoors. In the air cleaning operation mode, the compressor is stopped and the blowing means is controlled. Flap 51 is closed and all air passes through the air cleaning filter. For example, three air purifying operation modes are set in advance: "strong," "weak," and "automatic."

The air cleaning operation modes "Strong" and "Weak" clean the air continuously. That is, the blowing means is operated continuously.

For example, when the user turns on the operation button 101 of the operation display section 15, the control board, which is a control means, controls the louver drive motor so that the louver 13 opens the air outlet 12, and the dehumidifier 1 starts operating. do. When "strong" or "weak" is selected as the air purifying operation mode with the air purifying button 105, the control means turns the motor 21a so that the fan 21 rotates at the preset "strong" or "weak" rotation speed. Control.

"Strong" operates at the preset rotation speed of the fan 21 that has the maximum air purification capacity, and "Weak" operates at the preset rotation speed of the fan 21, which lowers the air purification capacity but reduces the operating noise. Operation is performed at the rotation speed of the fan 21. That is, between "strong" and "weak", the rotation speed of the fan 21 is higher in "strong".

Further, the direction in which air is sent out from the air outlet 12 can be selected using the wind direction button 109. When "Stop" is selected, the louver 13 stops; when "Front" is selected, the louver 13 swings only forward from the vertical top of the main body; when "Wide area" is selected, the louver 13 swings from the vertical top of the main body. Swing across the entire area, including the front as well as the rear.

Further, the air path button 111 is not used. The flap 51 is always closed, and the suction port of the bypass air passage 43 is closed. Since the bypass air passage 43 is closed, the airflow passing through the suction port cover 11a and sucked into the case 10 passes only through the filter air passage 44. Since the airflow passes only through the filter air passage 44, the air blown out from the outlet 12 of the dehumidifier 1 becomes clean air.

When the air cleaning operation mode is set to "auto", the air is cleaned according to the detection results of the dust sensor 62 and gas sensor 63. That is, the rotation speed of the blowing means is controlled. The "automatic" air cleaning operation will be explained using the flowchart of FIG. 7.

For example, when the user turns on the operation button 101 of the operation display section 15, the control means controls the louver drive motor so that the louver 13 opens the air outlet 12 (S101), and the dehumidifier 1 starts operating. . The control means rotates the motor 21a and controls the fan 21 to rotate at a preset high rotation speed (S102). The control means controls the dust sensor 62 and the gas sensor 63 to start detecting dust and gas in the air around the sensor, respectively, and determines the level of dirt in the air (S103). Here, as a method for determining the amount of air pollution, for example, the sum of the amount of dust detected by the dust sensor 62, which is related to the amount of dust in the air, and the amount of gas detected, which is related to the amount of gas detected by the gas sensor 63, is determined. If the air pollution is equal to or greater than a predetermined air pollution threshold, the air pollution is determined to be "large", and if it is less than the air pollution threshold, the air pollution is determined to be "small". If the air is only slightly contaminated, the motor 21a is controlled so that the fan 21 rotates at a preset low rotational speed (S104), air purification operation is performed at "low" (S105), and after a certain period of time, Return to step S103. If the air is heavily contaminated, the control means performs the air cleaning operation "strong" in step S102, which continues the operation of controlling the motor 21a so that the fan 21 rotates at the above-mentioned strong rotation speed ( S106) After a certain period of time, the process returns to step S103.

Next, the dehumidifying air purifying automatic operation mode will be explained. The dehumidification air purification automatic operation mode is an automatic operation mode for dehumidifying and cleaning the air indoors according to the output of the sensor. The dehumidifying air purifying automatic operation mode controls the compressor, blower means, and opening/closing means.

Further, the direction in which air is sent out from the air outlet 12 can be selected using the wind direction button 109. When "Stop" is selected, the louver 13 stops; when "Front" is selected, the louver 13 swings only forward from the vertical top of the main body; when "Wide area" is selected, the louver 13 swings forward from the vertical top of the main body. In addition to the direction, swing the entire area including the back.

Further, the air path button 111 is not used. Opening and closing of the flap 51 is automatically controlled. In the dehumidification air cleaning automatic operation mode, dehumidification and air cleaning are performed according to the detection results of the humidity sensor 61, dust sensor 62, and gas sensor 63. That is, the rotational speed of the compressor and the blowing means and the opening/closing of the flap 51 are controlled. The dehumidifying air purifying automatic operation mode will be explained using the flowchart of FIG. 8.

The dehumidifying air purifying automatic operating mode switches the operating mode of the dehumidifier to a dehumidifying operating mode, an air purifying operating mode, or the like, depending on the indoor humidity and air pollution status. For example, when the user turns on the operation button 101 of the operation display section 15, the control board 16a controls the louver drive circuit 13a of the louver drive motor 13b so that the louver 13 opens the air outlet 12 (S201), and dehumidifies the air. Machine 1 starts operation. Next, the control board 16a controls the drive circuit 51a of the opening/closing means drive motor 51b so that the flap 51 opens, thereby opening the suction port of the bypass air passage 43 (S202). The control board 16a rotates the motor 21a, controls the motor drive circuit 21b so that the fan 21 rotates at a preset strong rotation speed (S203), and drives the compressor drive motor 35b. The drive circuit 55a is controlled to cause the compressor 35 to start compressing the refrigerant (S204). The control board 16a causes the humidity sensor 61 to start detecting the humidity of the air around the humidity sensor 61, and determines whether the humidity is 50% or more (S205). If the humidity is 50% or more, the compressor drive motor 35b continues to drive, and the dust sensor 62 and gas sensor 63 start detecting dust and gas in the air around their respective sensors, thereby detecting air pollution. The size is determined (S206). If the air is only slightly contaminated, steps S202, S203, and S204 are continued, dehumidifying operation is performed (S207), and after a certain period of time, the process returns to step S205. If the air is heavily contaminated, the control board 16a controls the drive circuit 51a of the opening/closing means drive motor 51b to close the flap 51, closes the suction port of the bypass air path 43 (S208), and starts the dehumidifying air purification operation. is performed (S209), and after a certain period of time, the process returns to step S205.

In step S205, if the humidity is less than 50%, the control board 16a controls the drive circuit 35a to stop driving the compressor drive motor 35b, and the refrigerant compression operation of the compressor 35 is stopped (S210). In this state, the control board 16a controls the dust sensor 62 and the gas sensor 63 to start detecting dust and gas in the air around each sensor, and determines the level of dirt in the air (S211). If the air is lightly contaminated, the motor drive circuit 21b of the motor 21a is controlled so that the fan 21 rotates at a preset low rotational speed (S212), and a circular operation is performed that only blows air but does not perform dehumidification. (S213), and after a certain period of time, returns to step S205. If the air is heavily contaminated, the control board 16a controls the drive circuit 51a of the opening/closing means drive motor 51b to close the flap 51, closes the intake port of the bypass air path 43 (S214), and steps S203. An air cleaning operation is performed in which the fan 21 continues to rotate strongly (S215), and after a certain period of time, the process returns to step S205. As an example of operation, the threshold value of the humidity sensor 61 is set to 50%, but the threshold value may be a value other than this.

Here, it is better to change the preset rotation speed of the strong rotation depending on whether the flap 51 is closed or the flap 51 is open. When the rotation speed of the fan 21 is constant, the air volume is smaller when the flap 51 is closed than when the flap 51 is open. Therefore, when the rotation speed of the fan 21 is constant, the dehumidifying capacity is smaller in the dehumidifying air cleaning operation, in which the flap is closed, than in the dehumidifying operation, in which the flap 51 is open.

Therefore, the rotational speed of the fan 21 is set so that the amount of air passing through the heat exchanger is constant regardless of whether the flap 51 is closed or opened. Thereby, the same dehumidification ability can be obtained whether the flap 51 is closed or opened.

Next, in the dehumidifier 1 according to the first embodiment, air flow will be described when the dehumidifying operation described above is performed with the flap 51 open and when the flap 51 is closed. FIG. 9 is a longitudinal sectional view showing the flow of air in the dehumidifier 1. FIG. 10 is a horizontal sectional view showing the flow of air when the dehumidifier 1 is operating with the flap 51 open. FIG. 11 is a horizontal sectional view showing the flow of air when the dehumidifier 1 is operating with the flap 51 closed. The arrows in FIGS. 9 to 11 above indicate the flow of air when the dehumidifier 1 is operating.

During dehumidification operation, opening and closing of the flap 51 can be selected. When the dehumidifying operation is started, the louver 13 is opened, the motor 21a is driven, the fan 21 starts rotating, and then the compressor 35 starts operating. When the fan 21 rotates, an airflow from the suction port 11 toward the blowout port 12 is generated inside the case 10.

When operating with the flap 51 open, the suction port of the bypass air passage 43 is open. The air that has passed through the suction port cover 11a branches into a bypass air path 43 and a filter air path 44. The air passage area of the bypass air passage 43 and the filter air passage 44 is larger, but since the HEPA filter 41 and the activated carbon filter 42 are arranged in the filter air passage 44, the filter air passage 44 has a larger air passage area. 44 has a larger pressure loss. Therefore, the amount of air passing through the bypass air path 43 is larger than the amount of air passing through the filter air path 44.

In the filter air path 44, the airflow that has passed through the HEPA filter 41 and the activated carbon filter 42 merges with the airflow that has passed through the bypass air path 43 near the grid portion 10c. The air that has passed through the bypass air passage 43 is air that has reached the vicinity of the lattice portion 10c without passing through the HEPA filter 41 and activated carbon filter 42. Here, since the bypass air passage 43 has an air guide surface 43a that guides toward the center of the heat exchanger, the airflow that has gone straight through the bypass air passage 43 is directed toward the evaporator 31, which is a part of the heat exchanger. Change course toward the center of the windward side of the plane. Thereby, the airflow that has passed through the bypass air passage 43 and the airflow that has passed through the filter air passage 44 are mixed and flow into the evaporator 31 near the grid portion 10c.

The air flow passing through the bypass air passage 43 has a larger air volume than the air flow passing through the filter air passage 44. Furthermore, the airflow passing through the bypass air passage 43 has a faster wind speed than the airflow passing through the filter air passage 44. If the bypass air passage 43 does not have an air guiding surface 43a that guides the air toward the center of the heat exchanger, not only will the pressure loss increase, but also the wind speed balance when flowing into the heat exchanger will be poor, resulting in poor heat exchange efficiency. Become.

As shown in FIG. 3, in the space downstream of the activated carbon filter 42, the evaporator 32, which is a part of the heat exchanger, and the grid section 10c face each other at a distance A with a first space 33 in between. Furthermore, since the activated carbon filter 42 and the lattice part 10c, which are part of the air purifying filter, are arranged to face each other at a distance B across the second space 34, the bypass air passage 43 and The airflow that has passed through the filter air passage 44 is mixed in the first space 33 and the second space 34, and the airflow flowing into the evaporator 31 can be made to flow in a more balanced manner, and the heat exchange efficiency can be improved.

Furthermore, since the bypass air passage 43 is arranged parallel to both the left and right sides of the filter air passage 44, compared to the case where the bypass air passage is arranged on one side of the filter air passage 44, the evaporation which is a part of the heat exchanger It is possible to reduce unevenness in the amount of air flowing into the vessel 31, and improve heat exchange efficiency.

The air passing through the evaporator 31 undergoes heat exchange with the refrigerant flowing through the evaporator 31. As described above, the refrigerant whose pressure has been reduced by the pressure reducing device flows through the evaporator 31 . A refrigerant having a lower temperature than the air taken into the case 10 flows through the evaporator 31 . The refrigerant flowing through the evaporator 31 absorbs heat from the air passing through the evaporator 31 .

The air passing through the evaporator 31 has heat absorbed by the refrigerant flowing through the evaporator 31 . That is, the air passing through the evaporator 31 is cooled by the refrigerant flowing through the evaporator 31. As a result, moisture contained in the air passing through the evaporator 31 is condensed. In other words, condensation occurs. Moisture in the condensed air is removed from the air as liquid water. The removed water is stored, for example, in a tank 14 provided inside the case 10. This tank 14 is formed to be detachable from the case 10.

Air that has passed through the evaporator 31 is sent to the condenser 32. Heat exchange occurs between the air passing through the condenser 32 and the refrigerant flowing through the condenser 32. The refrigerant flowing through the condenser 32 is cooled by the air passing through the condenser 32 . The air passing through the condenser 32 is heated by the refrigerant flowing through the condenser 32 .

The air that has passed through the condenser 32 is in a dry state compared to the air outside the dehumidifier 1. This dry air passes through the fan 21. The air that has passed through the fan 21 is sent out above the case 10 from the air outlet 12. In this way, the dehumidifier 1 dehumidifies the air. Further, the dehumidifier 1 supplies dry air to the outside.

Since the bypass air passage 43 is open, the air flowing through the suction port cover 11a and sucked into the case 10 passes through the bypass air passage 43 and the filter air passage 44. Since the airflow passes through the bypass air passage 43 as well as the filter air passage 44, the pressure loss is smaller than when the bypass air passage 43 is closed. Therefore, when the same amount of air flows as when the bypass air passage 43 is closed, the fan rotation speed is small and the load on the motor 21a is also small, resulting in a reduction in operating noise. However, since the airflow also passes through the bypass air passage 43, the air blown out from the outlet 12 of the dehumidifier 1 cannot be cleaned as much as when the bypass air passage is closed.

Furthermore, when the vehicle is operated with the flap 51 closed, the bypass air passage 43 is closed. Since the bypass air passage 43 is closed, the air passing through the suction port cover 11a passes only through the filter air passage 44.

The air that has passed through the filter air passage 44 flows into the evaporator 31. The flow of air after entering the evaporator 31 is the same as when operating with the flap 51 open.

Since the bypass air passage 43 is closed, airflow passes only through the filter air passage 44 with respect to the air sucked into the case 10 through the suction port cover 11a. Since the HEPA filter 41 and the activated carbon filter 42 are arranged in the filter air passage 44, the pressure loss becomes larger than when the bypass air passage 43 is open. Therefore, when the same amount of air flows as when the bypass air passage 43 is open, the fan rotation speed is high, and the load on the motor 21a is also large, resulting in increased operating noise. However, since the airflow passes only through the filter air passage 44, the air blown out from the outlet 12 of the dehumidifier 1 is cleaner than when the bypass air passage is open.

As described above, the dehumidifier 1 according to the first embodiment includes a casing in which an inlet and an outlet are formed, an air purifying filter, a dehumidifying means for removing moisture from the air, and an air purifying filter inside the casing. , a blowing means for generating an airflow from the suction port to the blowout port, and the airflow generated by the blowing means passes through the suction port, the air purifying filter, the dehumidification means, and the blowout port in this order. A filter air path where air enters from the inlet passes through an air purifying filter and reaches the dehumidifying means, a bypass air path where air enters from the inlet goes to the dehumidifying means without passing through the air purifying filter, and a bypass air path. The apparatus includes an opening/closing means for opening/closing the suction port of the air passage, a control means for controlling opening/closing of the opening/closing means, and an opening/closing instruction means for instructing the control means to open/close the opening/closing operation of the opening/closing means. Therefore, opening and closing of the opening/closing means can be easily instructed. If you want to operate the device quietly, use the opening/closing instruction means to instruct the opening/closing means to open the suction port of the bypass air path. This allows operation using a bypass air path that does not pass through the air purifying filter. As a result, pressure loss can be reduced compared to when dehumidifying operation is performed using only the filter air path, and therefore operational noise can be reduced. Further, if it is desired to perform air purification as well as dehumidification at the same time, the opening/closing instruction means instructs the opening/closing means to close the suction port of the bypass air path. This allows operation using only the filter air path that passes through the air purifying filter. As a result, compared to the case of operation using a bypass air passage that does not pass through an air purifying filter, the pressure loss becomes larger and the operating noise becomes louder, but air purification can be performed at the same time.

Further, since the opening/closing display means for displaying the open/closed state of the opening/closing means is provided, the open/closed state of the opening/closing means can be easily checked, thereby providing a dehumidifier that is more convenient to use.

Embodiment 2.
Next, a second embodiment will be described. The dehumidifier 2 of the second embodiment differs from the dehumidifier 1 of the first embodiment in the configuration of the operation display section 15. FIG. 12 shows an example of the operation display section 15 according to the second embodiment. The configuration and operation other than the operation display section 15 are the same as those of the dehumidifier 1 of Embodiment 1, so explanations thereof will be omitted.

The air purification ability button 131 of the operation display section 15 is used to select the air purification ability mode, and is an example of opening/closing instruction means for instructing the control means to open/close the opening/closing means. Then, the control board 16a, which is a control means, instructs the operation display board 15a to display the currently selected air purification ability mode on the air purification ability display 132. That is, the air cleaning ability display 132 is an example of an opening/closing display means that displays the air cleaning ability corresponding to the opening/closing of the flap 51, which is an opening/closing means. The air cleaning ability mode controls opening and closing of the blower and the flap 51. The air purifying ability mode is set in advance as "strong" or "weak" mode, for example, and is stored in the storage section 16a1 of the control board 16a.

When "strong" is selected with the air purification ability button 131, the flap 51 is closed and the suction port of the bypass air path 43 is closed. As a result, the air is blown only to the filter air path 44, thereby increasing the air purifying ability.

When "weak" is selected with the air purification ability button 131, the flap 51 is opened and the suction port of the bypass air path 43 is opened. As a result, for the air sucked into the case 10 through the suction port cover 11a, the airflow passes not only through the filter air path 44 but also through the bypass air path 43, which reduces the air purifying ability. Operation noise can be reduced.

The air purification ability button 131 can be selected only when the dehumidification operation mode is "strong" or "weak". The air volume passing through the heat exchanger is made to be the same whether the air purification capacity mode is "strong" or "weak", that is, whether the flap 51 is "closed" or "open". Since the control board 16a controls the rotation speed of the fan 21, the dehumidification ability remains constant. Therefore, the strength of the air purifying ability can be selected while the dehumidifying ability remains constant.

As described above, in the dehumidifier 2 according to the second embodiment, in addition to the first embodiment, the opening/closing instruction means is a means for selecting an air purifying ability mode corresponding to opening/closing of the opening/closing means, and the opening/closing display means is Since the air cleaning ability mode corresponding to the opening/closing of the opening/closing means is displayed, the user can select the strength or weakness of the air cleaning operation while keeping the dehumidifying ability constant.

Further, since the opening/closing display means for displaying the open/closed state of the opening/closing means is provided, the open/closed state of the opening/closing means can be easily checked, and a dehumidifier that is easy to use can be obtained.

Embodiment 3.
Next, Embodiment 3 will be described. The dehumidifier 3 of the third embodiment differs from the dehumidifier 1 of the first embodiment and the dehumidifier 2 of the second embodiment in the configuration of the operation display section 15. FIG. 13 shows an example of the operation display section 15 according to the third embodiment. The configuration and operation other than the operation display section 15 are the same as those of the dehumidifier 1 of Embodiment 1 and the dehumidifier 2 of Embodiment 2, so explanations thereof will be omitted.

The priority button 141 of the operation display section 15 is used to select a priority mode, and the currently selected priority mode is displayed on the priority display 142. That is, the priority button 141 corresponds to opening and closing of the opening/closing means and is a means for selecting the air purifying ability priority operation mode or the silent priority operation mode, and is an example of an opening/closing instruction means. The control board 16a instructs the operation display board 15a to display on the priority display 142 whether the current operation mode is the air purification ability priority operation mode or the quiet operation priority mode. The priority display 142 corresponds to the opening/closing of the opening/closing means and displays the selected priority mode (air purifying ability priority operation mode or quiet noise priority operation mode), and is an example of the opening/closing display means. The opening and closing of the ventilation means and flap 51 is controlled based on the priority mode. As the priority mode, for example, a mode that gives priority to "air cleaning ability" and a mode that gives priority to "quietness" are set in advance and are stored in the storage section 16a1 of the control board 16a.

When the "air cleaning ability" priority mode is selected with the priority button 141, the flap 51 is closed and the suction port of the bypass air path 43 is closed. As a result, the airflow passes only through the filter air passage 44 with respect to the air sucked into the case 10 through the suction port cover 11a, thereby increasing the air purifying ability.

When the "quiet" priority mode is selected with the priority button 141, the flap 51 is opened and the suction port of the bypass air path 43 is opened. As a result, for the air sucked into the case 10 through the suction port cover 11a, the airflow passes not only through the filter air path 44 but also through the bypass air path 43, which reduces the air purifying ability. Operation noise can be reduced.

The priority button 141 can be selected only when the dehumidification operation mode is "strong" or "weak". Regardless of whether the selected priority mode is the "air cleaning ability" priority mode or the "quiet" priority mode, that is, whether the flap 51 is "closed" or "open", the air volume passing through the heat exchanger is Since the control board 16a controls the number of rotations of the fan 21 so that the numbers are the same, the dehumidification capacity remains constant. Therefore, it is possible to select which one to give priority to, air capacity or quietness, while keeping the dehumidification capacity constant.

As described above, in the dehumidifier 3 according to the third embodiment, in addition to the first embodiment, the opening/closing instruction means is operated with priority given to air purifying ability or quietness in response to opening/closing of the opening/closing means. The opening/closing display means is designed to display whether to prioritize air cleaning performance or quiet operation in response to the opening/closing of the opening/closing means, so that the user can You can choose whether to prioritize cleaning ability or quietness while keeping the dehumidification ability constant.

Further, since the opening/closing display means for displaying the open/closed state of the opening/closing means is provided, the open/closed state of the opening/closing means can be easily checked, and a dehumidifier that is easy to use can be obtained.

Embodiment 4.
Next, Embodiment 4 will be described. FIG. 14 is an enlarged view of section C in FIG. 11, and shows an example of the stop position when the flap 51 of the dehumidifier 4 of the fourth embodiment is opened and closed. FIG. 15 is a diagram showing an example of the operation display section 15 of the dehumidifier 4 according to the fourth embodiment. Regarding the configuration and operation, the description of the parts similar to those of the dehumidifier 1 of Embodiment 1 will be omitted.

The flap 51 adjusts the opening degree of the suction port of the bypass air passage 43. The flap 51 is driven by the opening/closing means driving motor from a position where the bypass air passage 43 is closed to a position where the bypass air passage 43 is opened in the downstream direction around the rotating shaft. For example, the stop positions of the flap 51 are set in advance to be at (1) to (5) in FIG. 14. That is, the flap 51 adjusts the opening area of the suction port of the bypass air path 43 by adjusting the opening degree of the suction port of the bypass air path 43 . For example, the motor for driving the opening/closing means is configured with a stepping motor, and the reference position is set to (1), and the number of pulses for rotating from the reference position (1) to each stop position (2) to (5) is determined by the control board 16a. It is stored in the storage unit 16a1.

At the stop position (1) of the flap 51, the suction port of the bypass air passage 43 is closed. Since the bypass air passage 43 is closed to the air that has passed through the suction port cover 11a, the airflow passes only through the filter air passage 44. At the stop position (5) of the flap 51, the suction port of the bypass air passage 43 is opened. Since the bypass air passage 43 is open to the air that has passed through the suction port cover 11a, the air flow passes through the bypass air passage 43 and the filter air passage 44.

The stop position (2), the stop position (3), and the stop position (4) of the flap 51 are set between the stop position (1) and the stop position (5). As an example, if the angle between stop position (1) and stop position (5) is 90°, then between stop position (1) and stop position (2), and between stop position (2) and stop position (3), The angle between the stop position (3) and the stop position (4), and the angle between the stop position (4) and the stop position (5) are each set to about 22.5°.

As shown in FIG. 15, the flap stop position selection button 151 of the operation display section 15 selects the stop position of the flap 51 and sets the opening degree of the flap 51, that is, the opening degree of the suction port of the bypass air passage 43. This is an example of an opening/closing instruction means for instructing the opening/closing operation of the flap 51, which is an opening/closing means. The control board 16a instructs the operation display board 15a to display the currently selected flap stop position on the flap stop position display 154. The flap stop position display 154 is an example of an opening/closing display means that displays the open/closed state of the flap 51, which is an opening/closing means. For example, the flap stop position selection button 151 includes a close selection button 152 and an open selection button 153. When the close selection button 152 is pressed, the flap 51 is driven in a direction to close the opening of the inlet of the bypass air passage 43. In other words, the close selection button 152 is an example of a second switch that instructs the opening degree of the flap 51, which is an opening/closing means, to be moved in the closing direction. Further, when the open selection button 153 is pressed, the flap 51 is driven in the direction of opening the suction port of the bypass air passage 43. That is, the open selection button 153 is an example of a first switch that instructs the flap 51, which is the opening/closing means, to move in the direction of opening. For example, when the flap 51 is stopped at the stop position (3), if you press the close selection button 152, the flap 51 moves to the stop position (2), and if you press the open selection button 153, The flap 51 moves to the stop position (4). In this way, the opening/closing instruction means is composed of a first switch that instructs the opening/closing means to move in the opening direction, and a second switch that instructs the opening/closing means to move in the closing direction. Therefore, the opening degree of the opening/closing means can be easily adjusted.

The flap stop position display 154 displays the position where the flap 51 is stopped. That is, the flap stop position display 154 is an example of an opening/closing display means that displays the open/closed state of the flap 51, which is an opening/closing means. The flap stop position display 154 is displayed using five LEDs. The five LEDs of the flap stop position display 154 correspond to the positions of the flap 51 from stop position (1) to stop position (5), and when the flap 51 is at the stop position (1), the leftmost LED lights up, and when it is at the stop position (5), the rightmost LED lights up.

When the close selection button 152 of the flap stop position selection button 151 is pressed to close the flap 51, the opening area of the inlet of the bypass air passage 43 becomes smaller. As a result, the airflow passing through the filter air passage 44 increases, so that the air purifying ability increases and the operating noise due to the air flow passing through the filter air passage 44 increases.

When the open selection button 153 of the flap stop position selection button 151 is pressed to open the flap 51, the opening area of the suction port of the bypass air passage 43 increases. As a result, the airflow passing through the filter air passage 44 decreases, so the air cleaning ability decreases, but the operating noise can be reduced.

The flap stop position selection button 151 can be selected only when the dehumidification operation mode is "strong" or "weak". At this time, the rotational speed of the air blowing means is controlled so that the amount of air passing through the heat exchanger is the same regardless of the position of the flap 51 from the stop position (1) to the stop position (5).

That is, for example, when the flap 51 is in the stop position (1), the air purifying ability is at its maximum, but the operating noise is also at its maximum, and when the flap 51 is in the stopping position (5), the air purifying ability is at the minimum. However, the volume of operating noise is also minimized. The air cleaning ability and the volume of the operating noise can be adjusted between the stop position (2), the stop position (3), and the stop position (4) of the flap 51. At this time, the dehumidification capacity is adjusted to be constant.

Here, in the fourth embodiment, as shown in FIG. 15, the flap stop position selection button 151 of the operation display section 15 is composed of a close selection button 152 and an open selection button 153, but as shown in FIG. 16 or 17. It may be configured as follows.

The flap stop position selection button 161 of the operation display section 15 in FIG. 16 is composed of five buttons, button 1 to button 5. In other words, the flap stop position selection button 161 is an example of opening/closing instruction means for instructing the control means to open/close the flap 51, which is an opening/closing means. For example, when button 1 of the flap stop position selection button 161 is pressed, the flap 51 moves to the stop position (1), and when button 2 is pressed, the flap 51 moves to the stop position (2). In this way, a plurality of switches are arranged as the opening/closing instruction means, and the opening degree of the opening/closing means is set corresponding to each switch, so that the opening degree of the opening/closing means can be easily set.

The flap stop position display 162 displays the position where the flap 51 is stopped. In other words, the flap stop position display 162 is an example of opening/closing instruction means for instructing the control means to open/close the flap 51, which is an opening/closing means. The flap stop position display 162 is displayed using five LEDs. The five LEDs of the flap stop position display 162 correspond to the positions of the flap 51 from the stop position (1) to the stop position (5), and when the flap 51 is at the stop position (1), the leftmost LED lights up and the flap 51 is at the stop position (5), the rightmost LED lights up.

The flap stop position selection dial 171 of the operation display section 15 in FIG. 17 rotates to select a flap position. For example, if the flap stop position selection dial 171 is rotated in the closing direction when the flap 51 is at the stop position (3), the flap 51 moves to the stop position (2), and the flap stop position selection dial 171 is rotated in the closing direction. When the flap 171 is rotated in the opening direction, the flap 51 moves to the stop position (4). In this way, since the close instruction means is constituted by a dial that can be rotated to adjust the opening/closing direction and degree of opening of the opening/closing means, the configuration of the degree of opening of the opening/closing means can be easily controlled.

The flap stop position display 172 displays the position where the flap 51 is stopped. The flap stop position display 172 is displayed using five LEDs. The five LEDs of the flap stop position display 172 correspond to the positions of the flap 51 from stop position (1) to stop position (5), and when the flap 51 is at the stop position (1), the leftmost LED lights up, and when it is at the stop position (5), the rightmost LED lights up.

As described above, in addition to the first embodiment, the dehumidifier 4 according to the fourth embodiment can select the stop position of the flap from the stop position (1) to the stop position (5), so that the dehumidifying capacity remains constant. You can fine-tune the air purification capacity and operating noise level.

Further, since the opening/closing display means for displaying the open/closed state of the opening/closing means is provided, the open/closed state of the opening/closing means can be easily checked, and a dehumidifier that is easy to use can be obtained.

Although we have shown an example of a refrigerant circuit equipped with an evaporator, a condenser, a compressor, and a pressure reducing device as a dehumidifying means for removing moisture from the air, moisture in the air is absorbed by a hygroscopic agent. A desiccant method may be used in which the material is heated with a heater and the water vapor released from the moisture absorbing material is cooled with an evaporator or the like to cause dew condensation and recover moisture.

Hereinafter, various aspects of the present disclosure will be collectively described as supplementary notes.

(Additional note 1)
A casing in which an inlet and an outlet are formed;
Inside the housing,
air cleaning filter,
a dehumidifying means for removing moisture from the air, and
comprising a blowing means for generating an airflow from the suction port to the blowout port,
A dehumidifier in which the airflow generated by the air blowing means passes through the suction port, the air purifying filter, the dehumidification means, and the air outlet in this order,
a filter air path through which air enters from the suction port passes through the air purifying filter and reaches the dehumidifying means;
a bypass air path through which air entering from the suction port reaches the dehumidifying means without passing through the air purifying filter;
Opening/closing means for opening and closing the suction port of the bypass air path;
control means for controlling opening and closing of the opening and closing means;
A dehumidifier comprising: opening/closing instruction means for instructing the control means to open/close the opening/closing means.
(Additional note 2)
A casing in which an inlet and an outlet are formed;
Inside the housing,
air cleaning filter,
a dehumidifying means for removing moisture from the air, and
comprising a blowing means for generating an airflow from the suction port to the blowout port,
A dehumidifier in which the airflow generated by the air blowing means passes through the suction port, the air purifying filter, the dehumidification means, and the air outlet in this order,
a filter air path through which air enters from the suction port passes through the air purifying filter and reaches the dehumidifying means;
a bypass air path through which air entering from the suction port reaches the dehumidifying means without passing through the air purifying filter;
Opening/closing means for opening and closing the suction port of the bypass air path;
control means for controlling opening and closing of the opening and closing means;
A dehumidifier comprising: opening/closing display means for displaying the open/closed state of the opening/closing means.
(Additional note 3)
2. The dehumidifier according to claim 1, wherein the opening/closing instructing means selects an air purifying ability mode corresponding to opening/closing of the opening/closing means and instructs the control means.
(Additional note 4)
3. The dehumidifier according to claim 2, wherein said opening/closing display means displays an air purifying ability mode corresponding to opening/closing of said opening/closing means.
(Appendix 5)
2. The dehumidifier according to claim 1, wherein the opening/closing instructing means selects an air purifying ability priority mode or a quiet noise priority mode and instructs the control means to select an air purifying ability priority mode or a quiet noise priority mode in response to opening/closing of the opening/closing means.
(Appendix 6)
3. The dehumidifier according to claim 2, wherein the opening/closing display means displays a selected priority mode in response to opening/closing of the opening/closing means.
(Appendix 7)
2. The dehumidifier according to claim 1, wherein the opening/closing instruction means sets an opening degree of the opening/closing means and instructs the control means.
(Appendix 8)
3. The dehumidifier according to claim 2, wherein the opening/closing display means displays the degree of opening of the opening/closing means.
(Appendix 9)
A claim characterized in that the opening/closing instruction means includes a first switch that instructs the opening/closing means to move in the opening direction, and a second switch that instructs the opening/closing means to move in the closing direction. The dehumidifier according to item 1.
(Appendix 10)
2. The dehumidifier according to claim 1, wherein the opening/closing instruction means includes a plurality of switches, and an opening degree of the opening/closing means is set corresponding to each switch.
(Appendix 11)
2. The dehumidifier according to claim 1, wherein the opening/closing instruction means includes a dial that, when rotated, sets the opening/closing direction and degree of opening of the opening/closing means.

1 dehumidifier,
2 dehumidifier,
3 dehumidifier,
4 dehumidifier,
10 cases,
10a front case,
10b rear case,
10c lattice part,
11 Suction port,
11a Suction port cover,
12 air outlet,
13 Louver,
13a Louver drive circuit 13b Louver drive motor 14 Tank,
15 operation display section,
15a operation display board,
16 board box,
16a Control board (control means)
16a1 storage unit,
16b power supply board 20 wheels,
21 Fan,
21a motor,
21b motor drive circuit,
31 Evaporator,
32 condenser,
33 First space,
34 Second space,
35 compressor,
35a drive circuit,
35b compressor drive motor,
41 HEPA filter,
42 Activated carbon filter,
43 Bypass air passage,
43a Wind guide surface,
44 filter air path,
51 flap,
51a drive circuit,
51b opening/closing means driving motor,
61 Humidity sensor,
62 Dust sensor,
63 gas sensor,
101 Operation button,
102 Operation display,
103 Dehumidification button,
104 Dehumidification operation display,
105 Air purification button,
106 Air purification operation display,
107 Dehumidification air purification button,
108 Dehumidification air purification operation display,
109 Wind direction button,
110 Wind direction display,
111 Wind path button,
112 Wind route display,
113 Humidity display,
114 Dust display,
115 Odor display,
131 Air purification ability button,
132 Air purification capacity display,
141 Priority button,
142 Priority display,
151 Flap stop position selection button,
152 Close selection button,
153 Open selection button,
154 Flap stop position display,
161 Flap stop position selection button,
162 Flap stop position display,
171 Flap stop position selection dial,
172 Flap stop position display.

Claims (11)

A casing in which an inlet and an outlet are formed;
Inside the housing,
air cleaning filter,
a dehumidifying means for removing moisture from the air, and
comprising a blowing means for generating an airflow from the suction port to the blowout port,
A dehumidifier in which the airflow generated by the air blowing means passes through the suction port, the air purifying filter, the dehumidification means, and the air outlet in this order,
a filter air path through which air enters from the suction port passes through the air purifying filter and reaches the dehumidifying means;
a bypass air path through which air entering from the suction port reaches the dehumidifying means without passing through the air purifying filter;
Opening/closing means for opening and closing the suction port of the bypass air path;
control means for controlling opening and closing of the opening and closing means;
A dehumidifier comprising: opening/closing instruction means for instructing the control means to open/close the opening/closing means. A casing in which an inlet and an outlet are formed;
Inside the housing,
air cleaning filter,
a dehumidifying means for removing moisture from the air, and
comprising a blowing means for generating an airflow from the suction port to the blowout port,
In a dehumidifier in which the airflow generated by the air blowing means passes through the suction port, the air purifying filter, the dehumidification means, and the air outlet in this order,
a filter air path through which air enters from the suction port passes through the air purifying filter and reaches the dehumidifying means;
a bypass air path through which air entering from the suction port reaches the dehumidifying means without passing through the air purifying filter;
Opening/closing means for opening and closing the suction port of the bypass air path;
control means for controlling opening and closing of the opening and closing means;
A dehumidifier comprising: opening/closing display means for displaying the open/closed state of the opening/closing means. 2. The dehumidifier according to claim 1, wherein the opening/closing instructing means selects an air purifying ability mode corresponding to opening/closing of the opening/closing means and instructs the control means. 3. The dehumidifier according to claim 2, wherein said opening/closing display means displays an air purifying ability mode corresponding to opening/closing of said opening/closing means. 2. The dehumidifier according to claim 1, wherein the opening/closing instructing means selects an air purifying ability priority mode or a quiet noise priority mode and instructs the control means to select an air purifying ability priority mode or a quiet noise priority mode in response to opening/closing of the opening/closing means. 3. The dehumidifier according to claim 2, wherein the opening/closing display means displays a selected priority mode in response to opening/closing of the opening/closing means. 2. The dehumidifier according to claim 1, wherein the opening/closing instruction means sets an opening degree of the opening/closing means and instructs the control means. 3. The dehumidifier according to claim 2, wherein the opening/closing display means displays the degree of opening of the opening/closing means. A claim characterized in that the opening/closing instruction means includes a first switch that instructs the opening/closing means to move in the opening direction, and a second switch that instructs the opening/closing means to move in the closing direction. The dehumidifier according to item 1. 2. The dehumidifier according to claim 1, wherein the opening/closing instruction means includes a plurality of switches, and an opening degree of the opening/closing means is set corresponding to each switch. 2. The dehumidifier according to claim 1, wherein the opening/closing instruction means includes a dial that, when rotated, sets the opening/closing direction and degree of opening of the opening/closing means.

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