TWI651497B - dehumidifier - Google Patents

Abstract

Provide a smaller dehumidifier with better energy efficiency.

The dehumidifier 1 includes an evaporator 31, a compressor 32, a first condenser 33a, a second condenser 33b, a casing 10, and a fan 21. The evaporator 31, the first condenser 33a, and the second condenser 33b are arranged side by side in this order. A first space 101 is formed between the first condenser 33a and the second condenser 33b. A second space 102 is formed between the evaporator 31 and the first condenser 33a. A part of the air taken in by the fan 21 passes through the evaporator 31 and the first condenser 33a in order to be sent to the first space 101. A part of the air taken in by the fan 21 is transmitted to the first space 101 without passing through the evaporator 31 and the first condenser 33a. The width of one side of the first space 101 is larger than the width of one side of the second space 102.

Description

   dehumidifier   

The invention relates to a dehumidifier.

Patent Document 1 describes a dehumidifier. The dehumidifier includes an evaporator, a condenser and a compressor. The dehumidifier described in Patent Document 1 uses a refrigeration cycle including an evaporator, a condenser, and a compressor.

The energy efficiency of a dehumidifier is EF. The EF value is the amount of dehumidification per 1kWh. When increasing the EF value of the dehumidifier, it is necessary to reduce the power consumption of the dehumidifier without changing the dehumidification amount of the dehumidifier. The power consumption of a dehumidifier using a refrigeration cycle is reduced by reducing the load on the compressor. The method of reducing the load of the compressor is to make the condenser cool by borrowing a large amount of air. This method is described as an example. Patent Document 1 describes a dehumidifier in which a dehumidifying air path for dehumidifying air is formed inside and a heat radiating air path for cooling a condenser.

[Advanced technical literature]

[Patent Literature]

[Patent Document 1] Japanese Unexamined Patent Publication No. 5-87417

In the above-mentioned Patent Document 1, the dehumidification air passage and the heat radiation air passage are formed in an independent state. The dehumidification air path and the heat radiation air path are respectively provided with blowers. Therefore, it is difficult to miniaturize the body of the dehumidifier described in Patent Document 1. In addition, the configuration for making the air volume of the dehumidifying air path and the air volume of the heat radiating air path a proper amount, respectively, is not disclosed in the aforementioned Patent Document 1. In the aforementioned Patent Document 1, no consideration is given to improving the energy efficiency of the dehumidifier.

The present invention has been developed to solve the problems described above. The purpose of the present invention is to provide a dehumidifier with better energy efficiency and smaller size.

The dehumidifier of the present invention includes: an evaporator in which a heat medium flows inside; a compressor that compresses the heat medium after passing through the evaporator; a second condenser that passes the heat medium that is compressed by the compressor; a first condenser, Pass the heat medium flowing through the second condenser; the frame; and the fan. The frame system houses an evaporator, a compressor, a first condenser, and a second condenser inside. The fan takes air into the inside of the frame and sends the taken air to the outside of the frame. The evaporator, the first condenser, and the second condenser are arranged side by side in one direction. A first space is formed between the first condenser and the second condenser. A second space is formed between the evaporator and the first condenser. A part of the air taken into the frame by the fan passes through the evaporator and the first condenser in order to be delivered to the first space. In addition, a part of the air taken into the housing by the fan is sent to the first space without passing through the evaporator and the first condenser. The width in one side direction of the first space is larger than the width in one side direction of the second space.

According to the present invention, it is possible to provide a dehumidifier having a better energy efficiency and a smaller size.

1‧‧‧ dehumidifier

10‧‧‧shell

10a‧‧‧Front case

10b‧‧‧ rear case

10c‧‧‧Slot cover

11‧‧‧ Suction port

11a‧‧‧Suction mouth cover

12‧‧‧ blowout

13‧‧‧ Blinds

14‧‧‧ Grip

15‧‧‧ cover

16a‧‧‧Operation Department

16b‧‧‧Display

17‧‧‧ divider

18‧‧‧ trough

20‧‧‧ Wheel

21‧‧‧fan

21a‧‧‧Motor

31‧‧‧Evaporator

32‧‧‧compressor

33a‧‧‧The first condenser

33b‧‧‧ 2nd condenser

34‧‧‧ Decompression device

35‧‧‧flare

36‧‧‧ Fitting

42‧‧‧Dehumidifying wind road

43‧‧‧Ventilation Road

101‧‧‧ the first space

102‧‧‧ 2nd space

103‧‧‧ 3rd space

Fig. 1 is a front view of the dehumidifier according to the first embodiment.

Fig. 2 is a rear side view of the dehumidifier according to the first embodiment.

Fig. 3 is a side view of the dehumidifier according to the first embodiment.

Fig. 4 is a plan view of the dehumidifier according to the first embodiment.

Fig. 5 is a first perspective view of the dehumidifier according to the first embodiment.

Fig. 6 is a second perspective view of the dehumidifier according to the first embodiment.

Fig. 7 is a rear side view of the dehumidifier in a state where the rear case is removed in the first embodiment.

Fig. 8 is a side view of the dehumidifier in a state where the rear case is removed in the first embodiment.

Fig. 9 is a third perspective view of the dehumidifier according to the first embodiment.

Fig. 10 is a fourth perspective view of the dehumidifier according to the first embodiment.

Fig. 11 is a longitudinal sectional view of the dehumidifier according to the first embodiment.

Fig. 12 is a horizontal sectional view of the dehumidifier 1 according to the first embodiment.

Fig. 13 is a diagram schematically showing a heat medium circuit according to the first embodiment.

Hereinafter, embodiments will be described with reference to the drawings. The same numbers in the drawings represent the same or equivalent parts. In this disclosure, repeated descriptions are simplified or omitted as appropriate. In addition, the present disclosure includes all combinations of combinable configurations among the configurations described in the following embodiments.

Embodiment 1.

Fig. 1 is a front view of the dehumidifier 1 according to the first embodiment. Fig. 2 is a rear side view of the dehumidifier 1 according to the first embodiment. Fig. 3 is a side view of the dehumidifier 1 according to the first embodiment. Fig. 4 is a plan view of the dehumidifier 1 according to the first embodiment. Fig. 4 shows the dehumidifier 1 as viewed from above and placed on a horizontal surface. Figures 1 to 4 show the appearance of the dehumidifier 1 after being placed on a horizontal surface. In this disclosure, the dehumidifier 1 will be described in principle based on the state after the dehumidifier 1 is placed on a horizontal surface.

Moreover, in this disclosure, the front direction of the dehumidifier 1 is also called a front direction. In the present disclosure, the rear direction of the dehumidifier 1 is also referred to as the rear direction. The front side of the paper surface in the first figure is taken as the front direction of the dehumidifier 1. The direction of the paper surface deep in the first figure is taken as the direction behind the dehumidifier 1. The front side of the paper surface in the second figure is taken as the rear direction of the dehumidifier 1. The direction of the paper surface deep in Figure 2 is taken as the direction before the dehumidifier 1. The left-right direction on the paper in FIG. 3 corresponds to the front-back direction of the dehumidifier 1. The up-down direction on the paper in FIG. 4 corresponds to the front-back direction of the dehumidifier 1.

In FIGS. 1, 2 and 3, the up-down direction on the paper corresponds to the up-down direction of the dehumidifier 1. The front side of the paper in FIG. 4 is the direction above the dehumidifier 1. The deep direction of the paper surface in FIG. 4 is the direction below the dehumidifier 1. Fig. 5 is a first perspective view of the dehumidifier 1 according to the first embodiment. Fig. 6 is a second perspective view of the dehumidifier 1 according to the first embodiment. FIG. 5 shows a state obtained by obliquely viewing the dehumidifier 1 from the front. Fig. 6 shows a state in which the dehumidifier 1 is viewed obliquely from the rear.

As shown in FIGS. 1 to 6, the dehumidifier 1 includes a casing 10. The casing 10 is an example of a pipe body forming the outer shell of the dehumidifier 1. The casing 10 is formed in a box shape capable of standing on its own, for example. A wheel 20 for moving the dehumidifier 1 may also be provided at the bottom of the casing 10.

In this embodiment, the case 10 includes a front case 10a and a rear case 10b. The front case 10 a is a member forming a front portion of the case 10. The rear case 10 b is a member that forms a back portion of the case 10. The rear case 10b is fixed to the front case 10a by, for example, screws.

A suction port 11 and a blow-out port 12 are formed in the casing 10. The suction port 11 is an opening for sucking air from the outside of the casing 10 to the inside. The air outlet 12 is an opening for sending air from the inside of the casing 10 to the outside. In the present embodiment, the suction port 11 is formed on a back portion of the casing 10. The suction port 11 is formed in the rear case 10b. In this embodiment, the air outlet 12 is formed on the upper surface portion of the casing 10. In other words, in the casing 10 of this embodiment, a suction port 11 as an opening facing backward and a blowing port 12 as an opening facing upward are formed.

The dehumidifier 1 may include a suction port cover 11 a covering the suction port 11. The suction port cover 11a is formed in a mesh shape, for example. The suction port cover 11 a prevents foreign matter from penetrating the suction port 11 and entering the housing 10. The suction inlet cover 11a is formed to be detachable from the rear case 10b, for example. .

The dehumidifier 1 includes shutters 13. The louver 13 is composed of a plate-like member. The louver 13 is used to adjust the direction in which the air is sent from the air outlet 12. The louver 13 is arranged near the air outlet 12.

The dehumidifier 1 includes an operation unit 16a and a display unit 16b. The operation unit 16a is used by a user to operate the dehumidifier 1. The display unit 16b is a user who displays the status and the like of the dehumidifier 1 to the user. The operation unit 16a includes, for example, keys. The display unit 16b includes, for example, a liquid crystal screen. As an example, the operation portion 16 a and the display portion 16 b are provided on a front portion of the upper surface of the casing 10.

The rear case 10b may be provided with, for example, a cover 15 for covering a power cord accommodated inside the case 10.

Here, the internal structure of the dehumidifier 1 according to this embodiment will be described in more detail with reference to the drawings. Fig. 7 is a rear side view of the dehumidifier 1 in a state where the rear case 10b is removed in the first embodiment. Fig. 8 is a side view of the dehumidifier 1 in a state where the rear case 10b is removed in the first embodiment. Fig. 9 is a third perspective view of the dehumidifier 1 according to the first embodiment. Fig. 10 is a fourth perspective view of the dehumidifier 1 of the first embodiment. FIG. 9 shows the state of the dehumidifier 1 obtained by obliquely looking up from the front direction and viewing the state after the rear case 10b is removed. Fig. 10 is a view showing a state of the dehumidifier 1 obtained by obliquely upwardly viewing the rear case 10b after the rear case 10b is removed.

Fig. 11 is a longitudinal sectional view of the dehumidifier 1 according to the first embodiment. Fig. 12 is a horizontal sectional view of the dehumidifier 1 according to the first embodiment. Fig. 11 is a cross-section at the A-A position in Figs. 1, 2, and 4. This shows a cross section orthogonal to the left-right direction of the dehumidifier 1. Fig. 12 shows a cross section at the position B-B in Figs. 1, 2 and 3. Figure 12 shows a section parallel to the horizontal plane. The directions on the paper in FIG. 11 correspond to the directions on the paper in FIG. 3. The directions on the paper in FIG. 12 correspond to the directions on the paper in FIG. 4. 11 and 12 show the internal structure of the dehumidifier 1 according to this embodiment.

The dehumidifier 1 of this embodiment includes a fan 21 as a mechanism for transmitting air. The fan 21 is a device that takes in air to the inside of the casing 10, and sends the taken-in air to the outside of the casing 10. The fan 21 is housed inside the casing 10. As shown in FIG. 11, an air path is formed in the casing 10 from the suction port 11 to the blowout port 12. The fan 21 is arranged on this wind path. The fan 21 is a device that generates air flow from the suction port 11 to the blow-out port 12 on the wind path from the suction port 11 to the blow-out port 12.

A motor 21 a is housed inside the casing 10. The motor 21a is a device for rotating the fan 21. In this embodiment, as shown in FIGS. 11 and 12, the motor 21 a is arranged in front of the fan 21. The motor 21 a is, for example, a member that is transmitted through a shaft, a gear, and the like, and is connected to the fan 21.

The dehumidifier 1 is a dehumidifying mechanism that removes water contained in the air. As an example, the dehumidifier 1 includes an evaporator 31, a compressor 32, a first condenser 33a, a second condenser 33b, and a pressure reducing device 34. The evaporator 31, the compressor 32, the first condenser 33 a, the second condenser 33 b, and the pressure reducing device 34 are housed in the casing 10. The evaporator 31, the compressor 32, the first condenser 33a, the second condenser 33b, and the decompression device 34 are arranged in a rear portion of the internal space of the casing 10. In the present embodiment, the evaporator 31, the compressor 32, the first condenser 33a, the second condenser 33b, and the pressure reducing device 34 are surrounded by the rear case 10b.

The evaporator 31, the compressor 32, the first condenser 33a, the second condenser 33b, and the decompression device 34 are circuits in which a heat medium is circulated. In this embodiment, the circuit in which the heat medium is circulated is referred to as a heat medium circuit. Fig. 13 is a diagram schematically showing a heat medium circuit according to the first embodiment. The evaporator 31, the compressor 32, the second condenser 33b, the first condenser 33a, and the decompression device 34 are sequentially connected through a pipe or the like. A heat medium flows through the evaporator 31, the compressor 32, the second condenser 33b, the first condenser 33a, and the decompression device 34.

The evaporator 31, the first condenser 33a, and the second condenser 33b are heat exchangers for exchanging heat between a heat medium and air. The compressor 32 is a device for compressing a heat medium. The decompression device 34 is a device for decompressing a heat medium. The pressure reducing device 34 is, for example, an expansion valve or a capillary tube.

The evaporator 31, the compressor 32, the first condenser 33a, the second condenser 33b, and the decompression device 34 each have an inlet and an outlet of a heat medium. The outlet of the evaporator 31 is connected to the inlet of the compressor 32. The heat medium that has passed through the evaporator 31 flows into the compressor 32. The compressor 32 is a heat medium that is compressed after flowing into the compressor 32. The heat medium compressed by the compressor 32 flows out from the outlet of the compressor 32.

The outlet of the compressor 32 is connected to the inlet of the second condenser 33b. The outlet of the second condenser 33b is connected to the inlet of the first condenser 33a. A heat medium compressed by the compressor 32 flows through the first condenser 33a and the second condenser 33b.

The outlet of the first condenser 33 a is connected to the inlet of the pressure reducing device 34. The heat medium that has passed through the first condenser 33a and the second condenser 33b flows into the decompression device 34. The decompression device 34 is a heat medium that flows into the decompression device 34 under reduced pressure. The heat medium that has been decompressed by the decompression device 34 expands.

The outlet of the pressure reducing device 34 is connected to the inlet of the evaporator 31. The heat medium decompressed by the decompression device 34 flows into the evaporator 31. In this embodiment, the heat medium passes through the evaporator 31, the compressor 32, the second condenser 33b, the first condenser 33a, and the pressure reducing device 34 in this order. The heat medium after passing through the decompression device 34 flows through the evaporator 31 again. The heat medium is circulated sequentially through the evaporator 31, the compressor 32, the second condenser 33b, the first condenser 33a, and the pressure reducing device 34.

As described above, an air path is formed in the casing 10 from the suction port 11 to the blowout port 12. At least a part of the evaporator 31 is arranged in a wind path from the suction port 11 to the blowout port 12. At least a part of the first condenser 33a is arranged in a wind path from the suction port 11 to the blowout port 12. At least a part of the second condenser 33b is arranged in the air path from the suction port 11 to the blowout port 12. In the present embodiment, the evaporator 31, the first condenser 33a, and the second condenser 33b are arranged in the air path from the suction port 11 to the blowing port 12.

Here, in the air path from the suction port 11 to the air outlet 12, the side having the suction port 11 is regarded as the upstream side. In the air path from the suction port 11 to the air outlet 12, the side having the air outlet 12 is regarded as the downstream side. That is, the fan 21 is in a wind path from the suction port 11 to the blowout port 12 and generates an air flow from the upstream side to the downstream side.

In the present embodiment, the fan 21 is disposed downstream of the evaporator 31, the first condenser 33a, and the second condenser 33b. The evaporator 31, the first condenser 33a, and the second condenser 33b are disposed between the fan 21 and the suction port 11. In the present embodiment, the fan 21 is disposed between the second condenser 33 b and the air outlet 12. The fan 21 is arranged in front of the second condenser 33b.

The arrangement of the fans 21 of the evaporator 31, the first condenser 33a, and the second condenser 33b is not limited to this embodiment. It suffices that the fan 21 is provided at a position capable of generating the airflow from the suction port 11 to the blowout port 12. For example, at least one of the evaporator 31, the first condenser 33a, and the second condenser 33b may be disposed further downstream than the fan 21.

The evaporator 31 is arranged upstream of the first condenser 33a. The evaporator 31 is disposed between the suction port 11 and the first condenser 33a. The first condenser 33 a is disposed downstream of the evaporator 31. The first condenser 33a is disposed between the evaporator 31 and the second condenser 33b. The second condenser 33 b is disposed between the first condenser 33 a and the fan 21.

In the present embodiment, the evaporator 31 and the first condenser 33a are located inside the casing 10 and are juxtaposed in an adjacent state. The first condenser 33a and the second condenser 33b are tied inside the casing 10 and are juxtaposed in an adjacent state. The evaporator 31, the first condenser 33a, and the second condenser 33b are arranged side by side inside the casing 10 in this order. In this embodiment, the evaporator 31, the first condenser 33a, and the second condenser 33b are arranged side by side in the direction from the rear to the front.

This direction in which the evaporator 31, the first condenser 33a, and the second condenser 33b are juxtaposed is an example of a side direction. In this disclosure, this direction in which the evaporator 31, the first condenser 33a, and the second condenser 33b are juxtaposed is also simply referred to as a side direction. The evaporator 31, the first condenser 33a, and the second condenser 33b are arranged side by side in the order of one side.

In the present embodiment, the fan 21 is located on one side of the second condenser 33b. Further, as shown in FIG. 11, the central axis F passing through the center of the fan 21 is along the front-rear direction, that is, along one side direction. The central axis F is a straight line located at a position coaxial with the central axis of the fan 21. The fan 21 rotates the center axis F as a rotation axis. The fan 21 is, for example, a multi-blade fan. The fan 21 is arranged below the air outlet 12. The fan 21 that uses the central axis F as a rotation axis and rotates is an airflow generated from behind the fan 21 and passing upward through the fan 21.

The evaporator 31, the first condenser 33a, and the second condenser 33b are each flat. The evaporator 31, the first condenser 33a, and the second condenser 33b are each formed in a cube shape, for example. In this embodiment, the evaporator 31 is provided so that the largest surface among the outer surfaces of the evaporator 31 intersects at right angles to one side. Similarly, the first condenser 33a is provided so that the largest surface among the outer surfaces of the first condenser 33a intersects at right angles to one side. Similarly, the second condenser 33b is provided so that the largest surface among the outer surfaces of the second condenser 33b intersects at right angles to one side.

The flat-plate evaporator 31 is arranged along the vertical direction. The flat first condenser 33a is arranged in the vertical direction. The flat second condenser 33b is arranged in the vertical direction. In this embodiment, the evaporator 31, the first condenser 33a, and the second condenser 33b are arranged in parallel.

In the present embodiment, the evaporator 31 is disposed in front of the suction port 11. The evaporator 31 is arranged behind the first condenser 33a. The first condenser 33 a is disposed in front of the evaporator 31. In other words, the first condenser 33 a is disposed in a side direction with respect to the evaporator 31. The evaporator 31 is disposed in the other direction than the first condenser 33a. The front surface of the evaporator 31 and the rear surface of the first condenser 33a face each other. In other words, one end face of the evaporator 31 and the other end face of the first condenser 33a face each other.

In the present embodiment, the second condenser 33b is disposed in front of the first condenser 33a. The first condenser 33a is arranged behind the second condenser 33b. In other words, the second condenser 33b is disposed on one side with respect to the first condenser 33a. The first condenser 33a is disposed in the other direction than the second condenser 33b. The front surface of the first condenser 33a and the rear surface of the second condenser 33b face each other. In other words, the one-side end surface of the first condenser 33a and the other-side end surface of the second condenser 33b face each other.

As shown in FIGS. 11 and 12, a gap is set between the first condenser 33 a and the second condenser 33 b. This gap is called the first space 101. A first space 101 is formed inside the casing 10 between the first condenser 33a and the second condenser 33b. The first space 101 is formed on the upstream side of the second condenser 33 b in the air path from the suction port 11 to the blow-out port 12. The air taken into the casing 10 by the fan 21 passes through the first space 101 and passes through the second condenser 33b.

In addition, a gap is set in advance between the evaporator 31 and the first condenser 33a. This gap is called the second space 102. A second space 102 is formed inside the casing 10 between the evaporator 31 and the first condenser 33a.

The first space 101 is surrounded by the front surface of the first condenser 33a and the rear surface of the second condenser 33b. In other words, the first space 101 is surrounded by the one-side end surface of the first condenser 33a and the other-side end surface of the second condenser 33b. The second space 102 is surrounded by the front surface of the evaporator 31 and the rear surface of the first condenser 33a. In other words, the second space 102 is surrounded by the one-side end surface of the evaporator 31 and the other-side end surface of the first condenser 33a.

The dehumidifier 1 of this embodiment includes a bell mouth 35. As shown in FIGS. 11 and 12, the bell mouth 35 is disposed between the second condenser 33 b and the fan 21. The bell mouth 35 is provided in order to allow air to efficiently flow into the fan 21. The bell mouth 35 is arranged upstream of the fan 21. The bell mouth 35 is arranged downstream of the second condenser 33b. The bell mouth 35 is formed in a shape squeezed from the upstream side to the downstream side.

In this embodiment, the bell mouth 35 is arranged in front of the second condenser 33b. The shape of the bell mouth 35 is a shape after being squeezed from the rear to the front. In other words, the bell mouth 35 is disposed in one direction with respect to the second condenser 33b. The shape of the bell mouth 35 is a shape after being squeezed toward one side. The rear end of the bell mouth 35 and the front surface of the second condenser 33b face each other. In other words, the other side end portion of the bell mouth 35 and the one side end surface of the second condenser 33b face each other.

As shown in FIGS. 11 and 12, a gap is set between the bell mouth 35 and the second condenser 33 b. This gap is called the third space 103. A third space 103 is formed inside the casing 10 between the bell mouth 35 and the second condenser 33b. A third space 103 is formed on the downstream side of the second condenser 33b in the air path from the suction port 11 to the blowing port 12. The air taken into the casing 10 by the fan 21 passes through the second condenser 33b and the third space 103 in this order.

The third space 103 is surrounded by the front surface of the second condenser 33 b and the rear end of the bell mouth 35. In other words, the third space 103 is surrounded by the one-side end surface of the second condenser 33 b and the other-side end portion of the bell mouth 35.

The dimensions of the first space 101 and the second space 102 will be described. The width L1 of the first space 101 is larger than the width L2 of the second space 102. The width L1 of the first space 101 refers to the front-back dimension of the first space 101. The width L2 of the second space 102 refers to the front-back dimension of the second space 102. In other words, the width L1 of the first space 101 refers to a dimension in one direction of the first space 101. The width L2 of the second space 102 refers to a dimension in one direction of the second space 102.

The width L1 of the first space 101 is also simply referred to as the width L1. The width L1 is also referred to as a width in one direction of the first space 101. The width L2 of the second space 102 is also simply referred to as the width L2. This width L2 is also referred to as a width in one direction of the second space 102.

As described above, there is a gap set in advance between the first condenser 33a and the second condenser 33b. This gap is the first space 101. The previously set size is the width L1. The width L1 is an example of a first fixed length that is set in advance.

As described above, the gap between the evaporator 31 and the first condenser 33a is set in advance. This gap is the second space 102. The previously set size is the width L2. The width L2 is an example of a second fixed length that is set in advance.

In this embodiment, the width L1 is the distance from the front surface of the first condenser 33a to the rear surface of the second condenser 33b. The first condenser 33a and the second condenser 33b are separated only by the width L1 as an example of the first fixed length that is set in advance. In other words, the distance from the end surface in one direction of the first condenser 33a to the end surface in the other direction of the second condenser 33b is the width L1 which is an example of the first fixed length that is set in advance.

In the present embodiment, the width L2 is a distance from the front surface of the evaporator 31 to the rear surface of the first condenser 33a. The front surface of the evaporator 31 and the rear surface of the first condenser 33a are separated by a width L2 which is only one example of the second fixed length. In other words, the distance from the end surface in one direction of the evaporator 31 to the end surface in the other direction of the first condenser 33a is the width L2 which is an example of the second fixed length that is set in advance.

Next, the size of the third space 103 will be described. In this embodiment, the width L3 of the third space 103 is larger than the width L1 of the first space 101. The width L3 of the third space 103 refers to the front-back dimension of the third space 103. In other words, the width L3 of the third space 103 refers to the dimension in one direction of the third space 103. The width L3 of the third space 103 is also simply referred to as the width L3. The width L3 is also referred to as a width in one direction of the third space 103.

As described above, the gap between the bell mouth 35 and the second condenser 33b is set in advance. This gap is the third space 103. The previously set size is the width L3. The width L3 is an example of a third fixed length that is set in advance.

In this embodiment, the width L3 is a distance from the front surface of the second condenser 33b to the rear end of the bell mouth 35. The second condenser 33b and the bell mouth 35 are separated by a width L3 which is only an example of a third fixed length that is set in advance. In other words, the distance from the one-side end surface of the second condenser 33b to the other-side end portion of the bell mouth 35 is the width L3 which is an example of the third fixed length that is set in advance.

As described above, in the present embodiment, the width L1 is larger than the width L2. As a result, the first space 101 is formed wider than the second space 102. The width L3 is larger than the width L1. Accordingly, the third space 103 is formed wider than the first space 101. The width L1 is, for example, 10 [mm]. The width L2 is, for example, 3 [mm]. The width L3 is, for example, 15 [mm].

In addition, as described above, an air path is formed in the casing 10 from the suction port 11 to the blowout port 12. The air path from the inlet 11 to the air outlet 12 includes a first air path and a second air path. In other words, the first air passage and the second air passage are formed inside the casing 10.

The first air path system is formed so that a part of the air taken into the casing 10 by the fan 21 passes through the evaporator 31 and the first condenser 33a in order, and the air path conveyed by the first space 101 in the past. The first air path is also formed so that part of the air taken into the casing 10 by the fan 21 passes through the air paths of the evaporator 31, the first condenser 33a, and the second condenser 33b in this order.

In addition, the second air path system is formed so that a part of the air taken into the casing 10 by the fan 21 does not pass through the ground of the evaporator 31 and the first condenser 33a and is conveyed to the first space 101. The second air path is also formed so that part of the air taken into the casing 10 by the fan 21 does not pass through the evaporator 31 and the first condenser 33a and passes through the air path of the second condenser 33b.

Inside the casing 10 of this embodiment, a first dehumidifying air path 42 is formed as an example. In the casing 10, a side air passage 43 is formed as a second air passage as an example. As shown in FIG. 11, the dehumidification air path 42 and the side ventilation path 43 are air paths from the suction port 11 to the first space 101, respectively.

The dehumidifying air path 42 is formed so that part of the air taken into the housing 10 by the fan 21 passes through the evaporator 31, the first condenser 33a, and the second condenser 33b in this order. The evaporator 31 and the first condenser 33a are arranged in the dehumidifying air passage 42. The dehumidifying air path 42 is from the suction port 11, passes through the evaporator 31 and the first condenser 33 a, and reaches the first space 101.

The side ventilation path 43 is formed so that a part of the air taken into the casing 10 by the fan 21 bypasses the evaporator 31 and the first condenser 33a to pass through the second condenser 33b. The side ventilation path 43 is formed so that air outside the dehumidifier 1 does not pass through the evaporator 31 and the first condenser 33a and directly passes through the second condenser 33b. The side ventilation path 43 is from the suction port 11 and bypasses the evaporator 31 and the first condenser 33a to reach the first space 101.

The dehumidification air path 42 and the bypass air path 43 may be formed by any method. As an example, a partition member 17 is provided inside the casing 10. The partition member 17 is disposed in an air path from the suction port 11 to the air outlet 12. The partition member 17 partitions the dehumidification air path 42 and the bypass air path 43. The partition member 17 is, for example, a flat plate-shaped member.

In this embodiment, as shown in FIG. 11, the flat partition member 17 is provided above the evaporator 31 and the first condenser 33 a. The flat partition member 17 is provided as an example, and is provided parallel to the horizontal direction. A part of the dehumidifying air path 42 is formed below the partition member 17. The side ventilation path 43 is formed above the partition member 17. In this embodiment, the bypass air passage 43 is formed above the evaporator 31 and the first condenser 33a.

As shown in FIG. 11, the side ventilation path 43 formed above the evaporator 31 and the first condenser 33 a is positioned above the upper end of the suction port 11. The positional relationship between the suction port 11 and the side ventilation path 43 is not limited to this embodiment. For example, the suction port 11 may be formed so that the upper end of the suction port 11 is located above the side ventilation path 43.

As shown in FIG. 11, the size of the second condenser 33 b in the vertical direction of the present embodiment is larger than the size of the evaporator 31 in the vertical direction and the size of the first condenser 33 a in the vertical direction. The size of the second condenser 33b in the up-down direction is, for example, 294 [mm]. The size of the evaporator 31 in the up-down direction is, for example, 252 [mm]. The size of the first condenser 33a in the up-down direction is, for example, 252 [mm].

As shown in FIG. 11, the upper end of the second condenser 33b of the present embodiment is located above the upper end of the evaporator 31 and the upper end of the first condenser 33a. The upper end of the second condenser 33b is positioned above the suction port 11. The upper end of the evaporator 31 and the upper end of the first condenser 33a are aligned in height. The heights of the lower end of the evaporator 31, the lower end of the first condenser 33a, and the lower end of the second condenser 33b are aligned.

As an example, the diameter of the fan 21 is 252 [mm]. The height of the central axis of the fan 21 and the central axis F which is coaxial with the central axis is the same as the height of the center of the evaporator 31 in the vertical direction in this embodiment. The heights of the central axis and the central axis F of the fan 21 are lower than the center of the second condenser 33b in the vertical direction in this embodiment. Here, a projection plane orthogonal to the front-rear direction, that is, a direction to one side is referred to as an imaginary projection plane. The fan 21, the evaporator 31, and the second condenser 33b are arranged so that the center axis of the fan 21 is closer to the center of the evaporator 31 than the center of the second condenser 33b in the above-mentioned virtual projection plane. In other words, the intersection of the central axis F and the imaginary projection plane is closer to the center of the evaporator 31 than the center of the second condenser 33b in the imaginary projection plane. The height of the center axis F may be different from the height of the center of the evaporator 31.

The left-right dimension of the evaporator 31 is, for example, 270 [mm]. The horizontal dimension of the first condenser 33a is, for example, 270 [mm]. The horizontal dimension of the second condenser 33b is, for example, 270 [mm]. As an example, the horizontal dimension of the evaporator 31, the horizontal dimension of the first condenser 33a, and the horizontal dimension of the second condenser 33b are the same. As described above, in the present embodiment, the size in the vertical direction of the second condenser 33b is larger than the size in the vertical direction of the evaporator 31 and the size in the vertical direction of the first condenser 33a. In this embodiment, the second condenser 33b is larger than the evaporator 31 and the first condenser 33a on a projection plane orthogonal to one direction. The size of the evaporator 31 in the projection plane orthogonal to one direction is the same as that of the first condenser 33a.

As shown in Fig. 12, the left end of the evaporator 31, the left end of the first condenser 33a, and the left end of the second condenser 33b are aligned in the left-right direction. The right end of the evaporator 31, the right end of the first condenser 33a, and the right end of the second condenser 33b are aligned in the left-right direction. The left-right center of the evaporator 31, the left-right center of the first condenser 33a, and the left-right center of the second condenser 33b are aligned in the left-right direction.

In this embodiment, as shown in FIG. 12, the center axis F is offset from the center in the left-right direction of the evaporator 31. When the fan 21 is a multi-blade fan, the fan 21 is accommodated by a scroll-like rolling sleeve. The shape of the scroll-shaped rolling sleeve is asymmetric on the left and right using the central axis F of the fan 21 as a reference. In the present embodiment, the center axis F is shifted from the center in the left-right direction of the evaporator 31, thereby reducing the space for housing the fan 21 and the rolling sleeve. In the present embodiment, the dehumidifier 1 is reduced in size.

The size of the evaporator 31 in the front-back direction is, for example, 38 [mm]. The size of the first condenser 33a in the front-rear direction is, for example, 25 [mm]. The size of the second condenser 33b in the front-rear direction is, for example, 25 [mm]. The aforementioned dimensions in the front-rear direction are the thicknesses of the plate-shaped evaporator 31, the first condenser 33a, and the second condenser 33b, respectively. As an example, the thickness of the first condenser 33a and the thickness of the second condenser 33b are the same. As an example, the evaporator 31 is thicker than the first condenser 33a and the second condenser 33b. The size of the fan 21 in the front-rear direction is, for example, 60 [mm]. As an example, the width L3 of the third space 103 is 1/4 of the size of the fan 21 in the front-back direction.

The sizes of the evaporator 31, the first condenser 33a, and the second condenser 33b are not limited to this embodiment. The arrangement of the evaporator 31, the first condenser 33a, and the second condenser 33b is similarly not limited to this embodiment.

Next, the flow of air during the operation of the dehumidifier 1 according to this embodiment will be described. The arrows in FIG. 11 indicate the flow of air when the dehumidifier 1 is operating.

The dehumidifier 1 is operated by a user by, for example, the operation unit 16a, and starts operation. First, the fan 21 rotates. When the fan 21 rotates, the airflow from the suction port 11 to the blowing port 12 is generated inside the casing 10. Thereby, the air outside the casing 10 passes through the suction port 11 to be taken into the inside of the casing 10. The air outside the casing 10 passes through the suction port 11 to flow to the inside of the casing 10. The air outside the casing 10 flows in one direction.

The air taken into the casing 10 is divided into a dehumidifying air path 42 and a bypass air path 43. A part of the air taken into the interior of the casing 10 is guided to the dehumidifying air path 42. A part of the air taken into the inside of the casing 10 is guided to the side ventilation path 43.

The air guided to the dehumidifying air path 42 passes through the evaporator 31. Heat is exchanged between the air passing through the evaporator 31 and the heat medium flowing through the evaporator 31. As described above, the heat medium decompressed by the decompression device 34 flows to the evaporator 31. A heat medium having a lower temperature than the air taken into the casing 10 flows to the evaporator 31. The heat medium flowing in the evaporator 31 absorbs heat from the air passing through the evaporator 31.

As described above, the air 2 passing through the evaporator 31 absorbs heat by the heat medium flowing through the evaporator 31. That is, the air passing through the evaporator 31 is cooled by the heat medium flowing through the evaporator 31. Thereby, the moisture contained in the air passing through the evaporator 31 is condensed. That is, dew condensation occurs. The moisture in the condensed air is treated as liquid water and removed from the air. The removed water is, for example, stored in a tank 18 provided inside the casing 10.

In addition, the groove body 18 may be detachable from the casing 10. The casing 10 may include a tank cover 10c. The tank cover 10 c is a member that covers the tank 18 in the casing 10. The tank body cover 10 c is integrally arranged with the tank body 18. The tank cover 10c and the tank 18 are integrally detachable from the front case 10a. Moreover, the tank body cover 10c may not be integral with the tank body 18. The tank body cover 10c may be independent from the tank body 18, and may be detachably formed with respect to the front case 10a. The user removes the tank cover 10c from the front case 10a, whereby the tank 18 can be detached.

The air passing through the evaporator 31 passes through the second space 102 and is sent to the first condenser 33a. Heat is exchanged between the air passing through the first condenser 33a and the heat medium flowing through the first condenser 33a. The heat medium flowing through the first condenser 33a is cooled by the air passing through the first condenser 33a.

The air passing through the first condenser 33a is heated by the heat medium flowing through the first condenser 33a. The air after passing through the first condenser 33a reaches the first space 101. In this way, the air guided to the dehumidifying air path 42 is sequentially conveyed through the evaporator 31, the second space 102, and the first condenser 33a, and the conventional first space 101 is conveyed. The air in one direction flows into the dehumidifying air path 42.

As described above, a part of the air taken into the inside of the casing 10 is guided to the side ventilation path 43. In this embodiment, the side ventilation path 43 is located above the suction port 11. The airflow of the air taken in through the suction port 11 is curved in a direction toward one side and upward. As a result, the air is guided to the side ventilation path 43. The air guided to the bypass ventilation path 43 is conveyed to the first space 101 without passing through the evaporator 31 and the first condenser 33a. The air passing through the dehumidifying air path 42 and the air passing through the bypass air path 43 are sent to the first space 101.

In the first space 101, the air passing through the dehumidifying air path 42 and the air passing through the bypass air path 43 are mixed. The air mixed in the first space 101 passes through the second condenser 33b as shown in FIG. 11. Heat is exchanged between the air passing through the second condenser 33b and the heat medium flowing through the second condenser 33b. The heat medium flowing through the second condenser 33b is cooled by the air passing through the second condenser 33b.

The air passing through the second condenser 33b is heated by the heat medium flowing through the second condenser 33b. The state of the air after passing through the second condenser 33b is drier than the air outside the dehumidifier 1. The air in this dry state passes through the fan 21. The air passing through the fan 21 is sent from the blow-out port 12 to the upper part of the casing 10. In this way, the dehumidifier 1 dehumidifies the air. The dehumidifier 1 supplies air in a dry state to the outside.

The dehumidifier 1 of the above embodiment is configured such that a part of the air taken into the casing 10 by a fan 21 passes through the evaporator 31, the first condenser 33a, and the second condenser 33b in this order. The dehumidifier 1 is configured so that a part of the air taken into the interior of the casing 10 does not pass through the evaporator 31 and the first condenser 33a and passes through the second condenser 33b. In the above-mentioned embodiment, the amount of air passing through the second condenser 33b can be increased without increasing the amount of air passing through the evaporator 31. In addition, in the above-mentioned embodiment, without increasing the air volume of the air passing through the first condenser 33a, the air volume of the air passing through the second condenser 33b can be increased. In the above embodiment, the second condenser 33b is efficiently cooled by the air passing through the bypass duct 43, that is, the air not warmed by the first condenser 33a. In addition, since the amount of air passing through the evaporator 31 does not increase, the amount of dehumidification caused by the evaporator 31 is maintained. In the above embodiment, a dehumidifier 1 having a higher EF value and a smaller size can be obtained.

A first space 101 is formed inside the casing 10. In the first space 101, the air passing through the dehumidifying air path 42 and the air passing through the bypass air path 43 are mixed. The width L1 of the first space 101 is larger than the width L2 of the second space 102. The pressure loss in the first space 101 is reduced, and the air flowing from the side ventilation path 43 to the first space 101 flows efficiently. In addition, the first space 101 is formed to be wide, whereby air is mixed uniformly in the first space 101. In the present embodiment, the second condenser 33b is efficiently cooled by using the air mixed in the first space 101. As a result, the energy efficiency of the dehumidifier 1 becomes better.

The width L2 of the second space 102 is smaller than the width L1 of the first space 101. In the present embodiment, the width L2 of the second space 102 is minimized, so that the dehumidifier 1 can be made smaller.

In addition, the suction port 11 and the blowing port 12 may be provided in arbitrary places. For example, the suction port 11 and the blowing port 12 may be provided on the side of the casing 10. In addition, the evaporator 31, the first condenser 33a, and the second condenser 33b may be arranged side by side in the vertical direction, for example. The bypass air passage 43 may be formed on the side of the evaporator 31 and the first condenser 33a, for example.

As described above, the dehumidifying air path 42 and the bypass air path 43 may be formed by any method. The partition member 17 may not be provided inside the casing 10. The dehumidifying air path 42 and the bypass air path 43 may be formed by separate members from the casing 10 and the partition member 17.

In addition, the dehumidification air path 42 and the bypass air path 43 may not be provided inside the casing 10. The air path inside the casing 10 need only be formed so that a part of the air taken in by the fan 21 can be transmitted to the first space 101 without transmitting through the evaporator 31 and the first condenser 33a. For example, an opening for taking in air into the casing 10 in the casing 10 may be formed separately from the suction port 11. This opening is formed so that the air taken in through the opening is transmitted to the first space 101 without passing through the evaporator 31 and the first condenser 33a. This opening is formed on the side surface of the casing 10 between the first condenser 33a and the second condenser 33b, for example, in the front-back direction position.

In the above-mentioned embodiment, the third space 103 is formed inside the casing 10 between the second condenser 33b and the bell mouth 35. The width L3 of the third space 103 is larger than the width L1 of the first space 101. The third space becomes wider, whereby the pressure loss in the third space 103 becomes smaller. As a result, the output of the fan 21 necessary for flowing a certain amount of air is reduced. In the above embodiment, the energy efficiency of the dehumidifier 1 becomes better.

The pressure loss in the third space 103 is until the width L3 reaches a certain upper limit value, and the larger the width L3, the smaller the width. This upper limit value is, for example, 40 [mm]. The upper limit value is, for example, 1/6 of the diameter of the fan 21.

When the width L3 of the third space is increased, the size of the dehumidifier 1 also increases. Here, the width L3 of the third space may be the same as the width L1 of the first space 101, for example. Since the width L3 is larger than the width L1, the output of the fan 21 necessary for flowing a certain amount of air becomes smaller. In addition, if the width L3 is the same as the width L1, the dehumidifier 1 can be made more compact.

The center axis F of the fan 21 in the above embodiment is located on a projection plane orthogonal to one side direction, and is closer to the center of the evaporator 31 than the center of the second condenser 33b. As a result, more air flows into the dehumidifying air path 42 than the side air path 43. According to the above embodiment, a dehumidifier 1 capable of sufficiently dehumidifying air can be obtained. As an example, the volume of air flowing through the dehumidifying air path 42 is only about twice the volume of the air flowing through the bypass air path 43.

In the above embodiment, the center axis F of the fan 21 is offset from the center in the left-right direction of the evaporator 31. The center axis F of the fan 21 may be the same as the center of the evaporator 31 in the left-right direction. In addition, the center axis F of the fan 21 may pass through the center of the evaporator 31 on a projection plane orthogonal to one direction. As a result, more air flows in the evaporator 31.

In the above embodiment, the second condenser 33b is larger than the evaporator 31 and the first condenser 33a on a projection plane orthogonal to one direction. Here, the area where the heat exchanger is in contact with the air passing through the heat exchanger is called a ventilation area. In the above embodiment, the ventilation area of the second condenser 33b can be made larger than the ventilation area of the evaporator 31 and the ventilation area of the first condenser 33a. This allows the second condenser 33b to be cooled more effectively.

The size of the evaporator 31 in the projection plane orthogonal to one direction is the same as that of the first condenser 33a. Thereby, the design of the dehumidifier 1 and the air path design in the casing 10 become easier. In addition, the dehumidifier 1 is miniaturized.

In the above embodiment, the heights of the lower end of the evaporator 31, the lower end of the first condenser 33a, and the lower end of the second condenser 33b are aligned. According to the aforementioned embodiment, the design and manufacturing of the dehumidifier 1 becomes easier. According to the above embodiment, the side ventilation path 43 can be easily formed in the casing 10. In addition, the evaporator 31, the first condenser 33a, and the second condenser 33b, which are heat exchangers, are heavy objects that account for a larger amount of the entire weight of the dehumidifier 1. The lower ends of the evaporator 31, the first condenser 33a, and the second condenser 33b, which are heavy objects, are aligned so that the dehumidifier 1 can stand on its own stably. The user can carry the dehumidifier 1 in a stable state.

The size of the second condenser 33b in the vertical direction may be the same as the size of the first condenser 33a in the vertical direction. This makes the dehumidifier 1 series lighter. In addition, the dehumidifier 1 can be made relatively small.

The lower end of the second condenser 33b may be positioned higher than the lower end of the evaporator 31 and the lower end of the first condenser 33a. In this case, even if the size of the second condenser 33b is the same as that of the evaporator 31 and the first condenser 33a, the bypass air passage 43 and the dehumidifying air passage 42 can be formed in the evaporator 31 and the first condenser Above 33a.

In the above-mentioned embodiment, the air after passing through the dehumidifying air path 42 and the air after passing through the bypass air path 43 pass through the second condenser 33b. The inside of the casing 10 may be configured so that the amount of airflow passing through the second condenser 33b is larger than the amount of airflow passing through the evaporator 31 and the first condenser 33a. For example, the inside of the casing 10 may be configured so that all of the air passing through the dehumidifying air path 42 and the air passing through the bypass air path 43 passes through the second condenser 33b. In addition, as described above, the casing 10 may have an opening for taking in air in addition to the suction port 11 inside the casing 10. This opening is formed, for example, so that the air volume of the air passing through the second condenser 33b is larger than the air volume of the air passing through the evaporator 31 and the first condenser 33a. The amount of air passing through the second condenser 33b becomes larger, whereby the second condenser 33b is cooled more effectively.

In the above embodiment, the bypass air passage 43 is disposed above the evaporator 31 and the first condenser 33a. The side ventilation path 43 arranged above the evaporator 31 and the first condenser 33a is self-inhaled, for example, does not pass through the U-shaped joint pipe 36 installed on the side of the evaporator 31 and the first condenser 33a. The port 11 reaches the first space 101. In addition, the side ventilation path 43 disposed above the evaporator 31 and the first condenser 33a is connected to the evaporator 31, the compressor 32, the first condenser 33a, the second condenser 33b, and the pressure reducing device 34 without passing through. The piping ground reaches the first space 101 from the suction port 11. There is no obstacle in the side ventilation path 43, and thereby the pressure loss in the side ventilation path 43 is reduced.

In addition, the grip 14 may be accommodated in a place where the bypass passage 43 is formed. The grip 14 is attached to the casing 10. The grip 14 is a member held by a user when the user moves the dehumidifier 1. In the above-mentioned embodiment, the grip 14 may be arranged near the evaporator 31 and the first condenser 33a which are heavy objects. Thereby, the user can hold the grip 14 to move the dehumidifier 1 in a stable state.

Claims (7)

A dehumidifier includes: an evaporator in which a heat medium flows inside; a compressor that compresses a heat medium after passing through the evaporator; a second condenser that passes the heat medium compressed in the compressor; a first condenser, The heat medium flowing through the second condenser is passed through; the casing houses the evaporator, the compressor, the first condenser, and the second condenser inside; and a fan takes air into the casing. The evaporator, the first condenser, and the second condenser are arranged side by side in order, and the first condenser and the first condenser A first space is formed between the two condensers, and a second space is formed between the evaporator and the first condenser, and a part of the air taken into the inside of the frame by the fan is sequentially A part of the air that is transmitted to the first space through the evaporator and the first condenser and taken into the inside of the frame by the fan is not transmitted through the evaporator and the first condenser ground. Is transported to the aforementioned first The width of the space in the one direction of the first space is greater than the width of the one direction in the second space. The dehumidifier according to item 1 of the scope of patent application, further comprising a bell mouth housed inside the aforementioned frame and arranged between the second condenser and the fan, the fan and the bell mouth, Compared with the second condenser, the third condenser is arranged in the one side direction, and a third space is formed between the bell mouth and the second condenser, and the width of the third space in the one side direction, The width is larger than the width of one side of the first space. The dehumidifier according to item 1 or 2 of the scope of patent application, wherein the second condenser is larger than the evaporator and the first condenser in a projection plane orthogonal to the direction of the one side. The dehumidifier according to item 1 or 2 of the scope of the patent application, wherein, in a projection plane orthogonal to the direction of the one side, the evaporator is the same size as the first condenser. The dehumidifier according to item 1 or 2 of the scope of application for a patent, wherein the lower end of the evaporator, the lower end of the first condenser, and the second condenser are in a state where the frame is placed on a horizontal surface. The lower ends are aligned. The dehumidifier according to item 1 or 2 of the scope of patent application, wherein the lower end of the second condenser is located at the lower end of the evaporator and the first condenser in a state where the frame is placed on a horizontal surface Above the lower end of the device. The dehumidifier according to item 1 or 2 of the scope of patent application, wherein the amount of air passing through the aforementioned fan to pass through the aforementioned second condenser is greater than the amount of air passing through the aforementioned fan to pass through the aforementioned evaporator and the first condenser The amount of wind.