CN220017562U - Dehumidifier - Google Patents

Abstract

The utility model discloses a dehumidifier, and relates to the technical field of air conditioners. The dehumidifier comprises a volute, a centrifugal fan, an evaporator and a condenser. The spiral case has an air intake, and evaporimeter and condenser all set up outside the air intake, and the evaporimeter is located the condenser and keeps away from one side of air intake, and centrifugal fan installs in the spiral case, and centrifugal fan is used for driving the air and passes evaporimeter and condenser in proper order to get into the air intake, the top extension of spiral case is provided with the limiting plate, and evaporimeter and condenser all with limiting plate interference fit. Compared with the prior art, the dehumidifier provided by the utility model has the advantages that as the centrifugal fan arranged on the volute and the evaporator and the condenser in interference fit with the limiting plate are adopted, all air can be ensured to pass through the evaporator and the condenser, the air leakage phenomenon is avoided, the heat exchange and dehumidification efficiency is improved, the heat exchange and dehumidification effect is ensured, and the user experience is improved.

Description

Dehumidifier

Technical Field

The utility model relates to the technical field of air conditioners, in particular to a dehumidifier.

Background

At present, with the increasing living standard, the requirements of the functionality of the air conditioner are higher and higher, so that a dehumidifier for reducing the indoor humidity is generated. The current dehumidification process of the dehumidifier generally utilizes a fan to suck indoor air into the air channel, so that the indoor air sequentially passes through the evaporator and the condenser in the air channel, and moisture is separated out under the heat exchange effect of the evaporator and the condenser, thereby achieving the dehumidification effect. However, in the existing dehumidifier, a certain gap is formed between the evaporator and the condenser and between the evaporator and the air duct, and part of air directly passes through the gap but does not pass through the evaporator and the condenser when flowing in the air duct, so that air leakage is caused, the heat exchange and dehumidification efficiency is reduced, the heat exchange and dehumidification effects are affected, and the user experience is poor.

Disclosure of Invention

The utility model solves the problem of ensuring that all air passes through the evaporator and the condenser, avoiding the occurrence of air leakage, improving the heat exchange and dehumidification efficiency, ensuring the heat exchange and dehumidification effect and improving the user experience.

In order to solve the problems, the technical scheme of the utility model is realized as follows:

the utility model provides a dehumidifier which comprises a volute, a centrifugal fan, an evaporator and a condenser, wherein the volute is provided with an air inlet, the evaporator and the condenser are arranged outside the air inlet, the evaporator is positioned on one side of the condenser, which is far away from the air inlet, the centrifugal fan is arranged on the volute, the centrifugal fan is used for driving air to sequentially pass through the evaporator and the condenser and enter the air inlet, a limiting plate is arranged at the top of the volute in an extending mode, and the evaporator and the condenser are in interference fit with the limiting plate. Compared with the prior art, the dehumidifier provided by the utility model has the advantages that as the centrifugal fan arranged on the volute and the evaporator and the condenser in interference fit with the limiting plate are adopted, all air can be ensured to pass through the evaporator and the condenser, the air leakage phenomenon is avoided, the heat exchange and dehumidification efficiency is improved, the heat exchange and dehumidification effect is ensured, and the user experience is improved.

Further, the limiting plate is provided with a demoulding inclination, the limiting plate is inclined to the plane where the air inlet is located, the limiting plate is gradually lifted in the extending direction, and the demoulding inclination ranges from 0.5 degree to 3 degrees. Reasonable demolding inclination can be convenient for realize the drawing of patterns of limiting plate when guaranteeing limiting plate intensity.

Further, the evaporator and the condenser are arranged at intervals in parallel and are parallel to the plane where the air inlet is, the evaporator is provided with a first top surface, the condenser is provided with a second top surface, the first top surface is parallel to the second top surface, the first top surface is higher than the second top surface, and the first top surface and the second top surface are matched with the limiting plate. So as to avoid air leakage, improve the heat exchange and dehumidification efficiency and ensure the heat exchange and dehumidification effect.

Further, one end of the first top surface, which is close to the air inlet, is in interference fit with the limiting plate, and a first gap is formed between one end of the first top surface, which is far away from the air inlet, and the limiting plate; one end of the second top surface, which is close to the air inlet, is in interference fit with the limiting plate, and a second gap is formed between one end of the second top surface, which is far away from the air inlet, and the limiting plate. Therefore, the assembly of the evaporator and the condenser can be conveniently carried out while the air leakage prevention effect is ensured, the labor-saving effect is achieved, and the assembly efficiency is improved.

Further, the spiral case includes end wall, top wall, bottom wall, first lateral wall and second lateral wall, and the air intake is seted up on the end wall, and top wall, first lateral wall, bottom wall and second lateral wall end to end, and all connect on the end wall to all enclose and locate outside the air intake, top wall and limiting plate are connected, and first lateral wall, bottom wall and second lateral wall all support with the condenser and hold. The air outlet airflow passing through the condenser can flow into the air inlet through the closed cavity, and then is blown out through the volute, so that the air outlet quantity and the air outlet effect are ensured.

Further, the spiral case includes first casing and second casing, and first casing and second casing can dismantle the connection, and enclose into the installation cavity jointly, and the air intake is seted up on first casing, and the air outlet has been seted up to the second casing, and the air intake passes through installation cavity and air outlet intercommunication. The centrifugal fan can drive air to flow into the installation cavity from the air inlet, and then the air is blown out into a room through the air outlet.

Further, the dehumidifier further comprises a support frame, the volute is arranged on the support frame, the support frame is provided with an extension plate in an extending mode, and the evaporator and the condenser are arranged on the extension plate and are arranged between the extension plate and the limiting plate. The extension plate is used for supporting and fixing the evaporator and the condenser so as to prevent the evaporator and the condenser from displacing relative to the extension plate, and indoor air can enter between the extension plate and the limiting plate under the action of the centrifugal fan, sequentially pass through the evaporator and the condenser and then flow back into the room through the volute.

Further, the extension plate is provided with a first clamping block and a second clamping block, the first clamping block is provided with a first clamping groove, the evaporator is clamped in the first clamping groove, the second clamping block is provided with a second clamping groove, and the condenser is clamped in the second clamping groove. The first clamping block can limit the evaporator through the first clamping groove so as to fix the relative position of the evaporator and the extension plate, and the second clamping block can limit the condenser through the second clamping groove so as to fix the relative position of the condenser and the extension plate.

Further, the height of the evaporator is smaller than that of the condenser, and the bottom wall of the first clamping groove is higher than that of the second clamping groove. The reliability of the cooperation of the evaporator, the condenser and the limiting plate is ensured, and the occurrence of air leakage is prevented.

Further, the extension board still is provided with first supporting shoe and second supporting shoe, and the top of first supporting shoe is highly the same with the diapire of first draw-in groove, and first supporting shoe supports with the evaporimeter, and the top of second supporting shoe is highly the same with the diapire of second draw-in groove, and the second supporting shoe supports with the condenser. The first supporting block is used for supporting the evaporator to guarantee the reliability of the joint of the evaporator and the first clamping groove, and the second supporting block is used for supporting the condenser to guarantee the reliability of the joint of the condenser and the second clamping groove.

Drawings

FIG. 1 is an exploded view of a dehumidifier according to an embodiment of the present utility model;

FIG. 2 is an exploded view of a volute in a dehumidifier according to an embodiment of the present utility model;

FIG. 3 is a half cross-sectional view of a dehumidifier according to an embodiment of the present utility model;

FIG. 4 is a schematic view of the configuration of the evaporator and condenser in the dehumidifier according to the embodiment of the present utility model, which are engaged with the limiting plate;

fig. 5 is a schematic structural view of a support frame in the dehumidifier according to an embodiment of the present utility model.

Reference numerals illustrate:

100-dehumidifier; 110-volute; 111-an air inlet; 112-a first housing; 1121-an end wall; 1122-top wall; 1123—a bottom wall; 1124-first side wall; 1125-a second sidewall; 1126-closed cavity; 113-a second housing; 114-mounting a cavity; 115-an air outlet; 116-limiting plates; 120-centrifugal fans; 130-an evaporator; 131-a first top surface; 132-first void; 140-a condenser; 141-a second top surface; 142-a second void; 150-supporting frames; 151-extension plates; 152-a first clamping block; 153-a second clamping block; 154-a first support block; 155-a second support block; 156-a first card slot; 157-a second card slot; 160-a housing; 170-compressor.

Detailed Description

In order that the above objects, features and advantages of the utility model will be readily understood, a more particular description of the utility model will be rendered by reference to specific embodiments thereof which are illustrated in the appended drawings.

Referring to fig. 1 to 3 in combination, a dehumidifier 100 for reducing indoor air humidity is provided in an embodiment of the present utility model. It can guarantee that all air all passes evaporimeter 130 and condenser 140, avoids taking place the air leakage phenomenon, improves heat transfer dehumidification efficiency, guarantees heat transfer dehumidification effect, promotes user experience.

The dehumidifier 100 is placed indoors, and the dehumidifier 100 is capable of dehumidifying indoor air after sucking the indoor air, and then discharging the dehumidified air indoors to achieve the dehumidification effect of the indoor air.

Dehumidifier 100 includes a volute 110, centrifugal fan 120, evaporator 130, condenser 140, and support 150. The scroll 110 has an air inlet 111, the air inlet 111 is used for allowing air to flow into the scroll 110, the evaporator 130 and the condenser 140 are both disposed outside the air inlet 111, and the evaporator 130 is located at a side of the condenser 140 away from the air inlet 111, so that the air sequentially passes through the evaporator 130 and the condenser 140 before flowing into the air inlet 111. The centrifugal fan 120 is installed on the volute 110, and the centrifugal fan 120 is used for generating negative pressure to drive air to sequentially pass through the evaporator 130 and the condenser 140 and enter the air inlet 111. Specifically, the top extension of spiral case 110 is provided with limiting plate 116, and evaporimeter 130 and condenser 140 all with limiting plate 116 interference fit to prevent to produce the clearance between evaporimeter 130 and the limiting plate 116, prevent simultaneously to produce the clearance between condenser 140 and the limiting plate 116, so, can guarantee that all air all passes evaporimeter 130 and condenser 140, avoid taking place the air leakage phenomenon, improve heat transfer dehumidification efficiency, guarantee heat transfer dehumidification effect, promote user experience.

Further, the scroll casing 110 is mounted on a supporting frame 150, and the supporting frame 150 is used for limiting and fixing the scroll casing 110 to prevent the scroll casing 110 from being displaced relative to the supporting frame 150. The support frame 150 extends and is provided with extension board 151, extension board 151 and limiting plate 116 interval setting, and evaporimeter 130 and condenser 140 all install on extension board 151, and all set up between extension board 151 and limiting plate 116, and extension board 151 is used for supporting and fixing evaporimeter 130 and condenser 140 to prevent that evaporimeter 130 and condenser 140 from taking place the displacement for extension board 151, indoor air can get into between extension board 151 and the limiting plate 116 under centrifugal fan 120's effect, and pass evaporimeter 130 and condenser 140 in proper order, rethread spiral case 110 flows back indoor.

Notably, the dehumidifier 100 further includes a housing 160, a compressor 170, and a throttle device (not shown). The spiral case 110, centrifugal fan 120, evaporimeter 130, condenser 140, support frame 150, compressor 170 and throttling arrangement all set up in shell 160, evaporimeter 130 and condenser 140 interval set up, condenser 140 sets up between evaporimeter 130 and spiral case 110, centrifugal fan 120 is used for driving the air and passes evaporimeter 130 and condenser 140 in proper order to flow to indoor through spiral case 110, in this process, evaporimeter 130 and condenser 140 combined action, in order to dehumidify the air of passing, reach the dehumidification and do not influence indoor temperature's effect.

Further, the compressor 170, the condenser 140, the throttling device and the evaporator 130 are connected end to end, and are combined to form a refrigerant flow path for the refrigerant to flow. During the flow of the refrigerant, the compressor 170 is configured to compress the refrigerant and deliver the high-temperature and high-pressure gaseous refrigerant to the condenser 140; the condenser 140 is used for exchanging heat with the refrigerant to cool the high-temperature and high-pressure gaseous refrigerant into a low-temperature and high-pressure liquid refrigerant, and enabling the liquid refrigerant to flow to the throttling device; the throttling device is used for throttling the refrigerant to change the low-temperature high-pressure liquid refrigerant into the low-temperature low-pressure liquid refrigerant and enable the low-temperature low-pressure liquid refrigerant to flow to the evaporator 130; the evaporator 130 is used for exchanging heat with the refrigerant to change the low-temperature low-pressure liquid refrigerant into low-pressure gaseous refrigerant, and making the low-temperature low-pressure gaseous refrigerant flow back to the compressor 170. In this process, the centrifugal fan 120 generates negative pressure to suck indoor air into the casing 160 and sequentially pass through the evaporator 130 and the condenser 140 to form an air-out flow, which is finally blown out through the scroll case 110 to realize a dehumidifying function.

Specifically, in the process that the air-out airflow passes through the evaporator 130, the low-temperature low-pressure liquid refrigerant in the evaporator 130 absorbs heat of the air-out airflow, so that moisture in the air-out airflow is condensed on the evaporator 130 and forms condensation, at this time, the air-out airflow is cooled, and the low-temperature low-pressure liquid refrigerant is warmed to form a low-pressure gaseous refrigerant, so that the dehumidification function is realized. In the process that the air-out airflow passes through the condenser 140, the air-out airflow absorbs the heat of the high-temperature and high-pressure gaseous refrigerant in the condenser 140, and at the moment, the air-out airflow is heated (recovered to be close to the indoor temperature), and the high-temperature and high-pressure gaseous refrigerant is cooled to form a low-temperature and high-pressure liquid refrigerant. In this way, the temperature of the air-out airflow is reduced and then raised in the process of passing through the evaporator 130 and the condenser 140 once, and finally the air-out airflow approaches the indoor temperature, so that the air-out airflow blown out from the volute 110 does not greatly affect the indoor temperature, and the user experience is improved.

In this embodiment, the limiting plate 116 has a demoulding slope, so as to facilitate demoulding of the limiting plate 116, thereby facilitating production and manufacture of the volute casing 110. Specifically, the limiting plate 116 is disposed inclined to the plane of the air inlet 111, and the limiting plate 116 gradually rises in the extending direction thereof, i.e., the limiting plate 116 gradually moves away from the extending plate 151 in a direction away from the air inlet 111. The range of the demolding slope is 0.5 to 3 degrees, and the reasonable demolding slope can ensure the strength of the limiting plate 116 and is convenient for realizing the demolding of the limiting plate 116.

In the present embodiment, the draft angle is 1 degree, but the present utility model is not limited thereto, and in other embodiments, the draft angle may be 0.5 degree or 3 degrees, and the magnitude of the draft angle is not particularly limited.

Referring to fig. 4, it is noted that the evaporator 130 and the condenser 140 are plate heat exchangers, and the evaporator 130 and the condenser 140 are rectangular plates. The evaporator 130 and the condenser 140 are arranged at intervals in parallel and are parallel to the plane where the air inlet 111 is located, so that the uniformity of heat exchange of air is improved, and the air inlet effect is ensured. The evaporator 130 has a first top surface 131, the condenser 140 has a second top surface 141, the first top surface 131 is parallel to the second top surface 141, the first top surface 131 is higher than the second top surface 141, the first top surface 131 and the second top surface 141 are matched with the limiting plate 116, so that air leakage is avoided, heat exchange and dehumidification efficiency is improved, and heat exchange and dehumidification effects are guaranteed. Specifically, since the limiting plate 116 is gradually raised in a direction away from the air inlet 111, and the evaporator 130 is located at a side of the condenser 140 away from the air inlet 111, in order to ensure that both the evaporator 130 and the condenser 140 are in interference fit with the limiting plate 116, the evaporator 130 is lifted up so that the height of the first top surface 131 of the evaporator 130 is higher than the height of the second top surface 141 of the condenser 140, thereby ensuring the reliability of the cooperation of the first top surface 131 and the second top surface 141 with the limiting plate 116.

In this embodiment, the first top surface 131 is close to the one end and the limiting plate 116 interference fit of air intake 111, and the first top surface 131 is kept away from and forms first space 132 between the one end of air intake 111 and the limiting plate 116, and first space 132 is triangle-shaped setting, first top surface 131 part and limiting plate 116 interference fit promptly, can be so be convenient for carry out the assembly of evaporimeter 130 when guaranteeing the air leakage prevention effect, reaches laborsaving effect to improve assembly efficiency. Likewise, one end of the second top surface 141, which is close to the air inlet 111, is in interference fit with the limiting plate 116, a second gap 142 is formed between one end, which is far away from the air inlet 111, of the second top surface 141 and the limiting plate 116, and the second gap 142 is in triangular arrangement, namely, the second top surface 141 is in interference fit with the limiting plate 116, so that the assembly of the condenser 140 can be conveniently carried out while the air leakage prevention effect is ensured, the labor-saving effect is achieved, and the assembly efficiency is improved.

With continued reference to fig. 2, the volute 110 includes a first housing 112 and a second housing 113. The first housing 112 is detachably connected to the second housing 113 to facilitate assembly and disassembly of the first housing 112 and the second housing 113, thereby facilitating maintenance and cleaning of the scroll casing 110. The first shell 112 and the second shell 113 jointly enclose a mounting cavity 114, the centrifugal fan 120 is mounted in the mounting cavity 114, the air inlet 111 is formed in the first shell 112, the air outlet 115 is formed in the second shell 113, the air inlet 111 is communicated with the air outlet 115 through the mounting cavity 114, and the centrifugal fan 120 can drive air to flow into the mounting cavity 114 from the air inlet 111 and then blow out indoors through the air outlet 115.

The first housing 112 of the volute 110 includes an end wall 1121, a top wall 1122, a bottom wall 1123, a first side wall 1124, and a second side wall 1125. The air inlet 111 is formed on the end wall 1121, the top wall 1122, the first side wall 1124, the bottom wall 1123 and the second side wall 1125 are connected end to end, are all connected to the end wall 1121, and are all enclosed outside the air inlet 111, the top wall 1122, the first side wall 1124, the bottom wall 1123 and the second side wall 1125 are all arranged on one side of the end wall 1121 far away from the installation cavity 114, the top wall 1122, the first side wall 1124, the bottom wall 1123 and the second side wall 1125 together enclose a closed cavity 1126, and the air flow passes through the closed cavity 1126 and enters the air inlet 111 under the action of the centrifugal fan 120. The top wall 1122 is connected to the limiting plate 116, and the limiting plate 116 is disposed at an end of the top wall 1122 away from the end wall 1121, and an included angle is formed between the limiting plate 116 and the top wall 1122, and the size of the included angle is the same as the size of the demolding slope of the limiting plate 116. Specifically, the first side wall 1124, the bottom wall 1123 and the second side wall 1125 are all abutted against the condenser 140 to seal the gaps between the first side wall 1124, the bottom wall 1123 and the second side wall 1125 and the condenser 140, and the limiting plate 116 is in interference fit with the top of the condenser 140 to prevent the occurrence of air leakage, so that the air-out airflow passing through the condenser 140 can flow into the air inlet 111 through the closed cavity 1126, and then is blown out through the volute 110, thereby ensuring the air-out quantity and the air-out effect.

In this embodiment, the limiting plate 116, the end wall 1121, the top wall 1122, the bottom wall 1123, the first side wall 1124 and the second side wall 1125 are integrally formed to enhance the connection strength.

Referring to fig. 5, the extension plate 151 is provided with a first clamping block 152, a second clamping block 153, a first supporting block 154 and a second supporting block 155. The first clamping block 152 is provided with a first clamping groove 156, the evaporator 130 is clamped in the first clamping groove 156, and the first clamping block 152 can limit the evaporator 130 through the first clamping groove 156 so as to fix the relative position of the evaporator 130 and the extension plate 151 and prevent the evaporator 130 from displacing relative to the extension plate 151. Similarly, the second clamping block 153 is provided with a second clamping groove 157, the condenser 140 is clamped in the second clamping groove 157, and the second clamping block 153 can limit the condenser 140 through the second clamping groove 157 so as to fix the relative position of the condenser 140 and the extension plate 151 and prevent the condenser 140 from displacing relative to the extension plate 151.

Further, the top of the first supporting block 154 is the same as the bottom wall of the first clamping groove 156, the first supporting block 154 is abutted against the evaporator 130, and the first supporting block 154 is used for supporting the evaporator 130 so as to ensure the reliability of the clamping connection between the evaporator 130 and the first clamping groove 156. Similarly, the top of the second supporting block 155 is the same as the bottom wall of the second clamping groove 157, the second supporting block 155 abuts against the condenser 140, and the second supporting block 155 is used for supporting the condenser 140, so as to ensure the reliability of the clamping connection between the condenser 140 and the second clamping groove 157.

In this embodiment, the number of the first clamping blocks 152 and the second clamping blocks 153 is two, the first supporting blocks 154 are disposed between the two first clamping blocks 152, and the second supporting blocks 155 are disposed between the two second clamping blocks 153. The two first clamping blocks 152 are oppositely arranged at two ends of the evaporator 130, and the two first clamping blocks 152 act together to improve the clamping and limiting effects on the evaporator 130 and prevent the evaporator 130 from displacing; the two second clamping blocks 153 are oppositely arranged at two ends of the condenser 140, and the two second clamping blocks 153 are combined to improve the clamping limiting effect on the condenser 140 and prevent the condenser 140 from displacing.

In this embodiment, the height of the evaporator 130 is smaller than that of the condenser 140, in order to ensure that the evaporator 130 and the condenser 140 are in interference fit with the limiting plate 116, the evaporator 130 is lifted, i.e. the bottom wall of the first clamping groove 156 is higher than the bottom wall of the second clamping groove 157, so as to ensure the reliability of the cooperation of the evaporator 130 and the condenser 140 with the limiting plate 116, and prevent air leakage.

In the dehumidifier 100 according to the embodiment of the present utility model, the volute 110 has an air inlet 111, the evaporator 130 and the condenser 140 are both disposed outside the air inlet 111, the evaporator 130 is located at one side of the condenser 140 away from the air inlet 111, the centrifugal fan 120 is mounted on the volute 110, the centrifugal fan 120 is used for driving air to pass through the evaporator 130 and the condenser 140 in sequence and enter the air inlet 111, a limiting plate 116 is disposed at the top of the volute 110 in an extending manner, and the evaporator 130 and the condenser 140 are both in interference fit with the limiting plate 116. Compared with the prior art, the dehumidifier 100 provided by the utility model adopts the centrifugal fan 120 arranged on the volute 110, and the evaporator 130 and the condenser 140 in interference fit with the limiting plate 116, so that all air can be ensured to pass through the evaporator 130 and the condenser 140, the air leakage phenomenon is avoided, the heat exchange and dehumidification efficiency is improved, the heat exchange and dehumidification effect is ensured, and the user experience is improved.

Although the present utility model is disclosed above, the present utility model is not limited thereto. Various changes and modifications may be made by one skilled in the art without departing from the spirit and scope of the utility model, and the scope of the utility model should be assessed accordingly to that of the appended claims.

Claims (10)

1. The utility model provides a dehumidifier, its characterized in that includes spiral case (110), centrifugal fan (120), evaporimeter (130) and condenser (140), spiral case (110) have an air intake (111), evaporimeter (130) with condenser (140) all set up in outside air intake (111), evaporimeter (130) are located condenser (140) are kept away from one side of air intake (111), centrifugal fan (120) install in spiral case (110), centrifugal fan (120) are used for driving the air and pass in proper order evaporimeter (130) with condenser (140), and get into air intake (111), the top extension of spiral case (110) is provided with limiting plate (116), evaporimeter (130) with condenser (140) all with limiting plate (116) interference fit.

2. Dehumidifier according to claim 1, characterized in that the limiting plate (116) has a demoulding inclination, the limiting plate (116) is arranged obliquely to the plane of the air inlet (111), the limiting plate (116) is gradually raised in the direction of extension thereof, and the demoulding inclination ranges from 0.5 degrees to 3 degrees.

3. Dehumidifier according to claim 2, characterized in that the evaporator (130) and the condenser (140) are arranged at intervals in parallel and are parallel to the plane of the air inlet (111), the evaporator (130) has a first top surface (131), the condenser (140) has a second top surface (141), the first top surface (131) is parallel to the second top surface (141), the first top surface (131) is higher than the second top surface (141), and the first top surface (131) and the second top surface (141) are both matched with the limiting plate (116).

4. A dehumidifier according to claim 3, wherein an end of the first top surface (131) adjacent to the air inlet (111) is in interference fit with the limiting plate (116), and a first gap (132) is formed between an end of the first top surface (131) remote from the air inlet (111) and the limiting plate (116); one end of the second top surface (141) close to the air inlet (111) is in interference fit with the limiting plate (116), and a second gap (142) is formed between one end of the second top surface (141) away from the air inlet (111) and the limiting plate (116).

5. The dehumidifier of claim 1, wherein the volute (110) comprises an end wall (1121), a top wall (1122), a bottom wall (1123), a first side wall (1124) and a second side wall (1125), the air inlet (111) is formed in the end wall (1121), the top wall (1122), the first side wall (1124), the bottom wall (1123) and the second side wall (1125) are connected end to end and are connected to the end wall (1121) and are all surrounded outside the air inlet (111), the top wall (1122) is connected with the limiting plate (116), and the first side wall (1124), the bottom wall (1123) and the second side wall (1125) are all abutted against the condenser (140).

6. Dehumidifier according to claim 1, characterized in that the volute (110) comprises a first housing (112) and a second housing (113), the first housing (112) and the second housing (113) are detachably connected and jointly enclose a mounting cavity (114), the air inlet (111) is arranged on the first housing (112), the second housing (113) is provided with an air outlet (115), and the air inlet (111) is communicated with the air outlet (115) through the mounting cavity (114).

7. The dehumidifier according to claim 1, further comprising a support frame (150), wherein the scroll casing (110) is mounted on the support frame (150), wherein the support frame (150) is provided with an extension plate (151) in an extending manner, wherein the evaporator (130) and the condenser (140) are both mounted on the extension plate (151) and are both disposed between the extension plate (151) and the limiting plate (116).

8. The dehumidifier according to claim 7, wherein the extension plate (151) is provided with a first clamping block (152) and a second clamping block (153), the first clamping block (152) is provided with a first clamping groove (156), the evaporator (130) is clamped in the first clamping groove (156), the second clamping block (153) is provided with a second clamping groove (157), and the condenser (140) is clamped in the second clamping groove (157).

9. The dehumidifier of claim 8, wherein the evaporator (130) has a height less than the condenser (140), and wherein the bottom wall of the first slot (156) is disposed higher than the bottom wall of the second slot (157).

10. The dehumidifier according to claim 8, wherein the extension plate (151) is further provided with a first supporting block (154) and a second supporting block (155), the top of the first supporting block (154) is the same as the bottom wall of the first clamping groove (156), the first supporting block (154) is abutted against the evaporator (130), the top of the second supporting block (155) is the same as the bottom wall of the second clamping groove (157), and the second supporting block (155) is abutted against the condenser (140).