A dehumidifier

Abstract

The application 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 volute is provided with an air inlet, the evaporator and the condenser are arranged outside the air inlet, the evaporator is located on the side of the condenser away from the air inlet, the centrifugal fan is installed on the volute, the centrifugal fan is used for driving air to pass through the evaporator and the condenser in sequence and then enter the air inlet, a limiting plate is arranged on the top of the volute, and the evaporator and the condenser are in interference fit with the limiting plate. Compared with the prior art, the dehumidifier provided by the application can ensure that all air passes through the evaporator and the condenser, avoids air leakage, improves heat exchange and dehumidification efficiency, guarantees heat exchange and dehumidification effect, and improves user experience.

Description

Technical Field

[0001] This invention relates to the field of air conditioning technology, and in particular to a dehumidifier. Background Technology

[0002] Currently, with the continuous improvement of living standards, people have increasingly higher requirements for the functionality of air conditioners. Therefore, dehumidifiers, used to reduce indoor humidity, have emerged. The dehumidification process of current dehumidifiers generally involves using a fan to draw indoor air into an air duct, where the air passes sequentially through an evaporator and condenser. The moisture is then extracted through heat exchange between the evaporator and condenser, thus achieving a dehumidification effect. However, in current dehumidifiers, there is a certain gap at the junction of the evaporator / condenser and the air duct. Some air flows directly through this gap without passing through the evaporator and condenser, causing air leakage, reducing heat exchange and dehumidification efficiency, affecting the dehumidification effect, and resulting in a poor user experience. Summary of the Invention

[0003] The problem solved by this invention is how to ensure that all air passes through the evaporator and condenser, avoid air leakage, improve heat exchange and dehumidification efficiency, ensure heat exchange and dehumidification effect, and enhance user experience.

[0004] To solve the above problems, the technical solution of the present invention is implemented as follows:

[0005] This invention provides a dehumidifier, including a volute casing, a centrifugal fan, an evaporator, and a condenser. The volute casing has an air inlet, and both the evaporator and condenser are located outside the air inlet, with the evaporator situated on the side of the condenser furthest from the air inlet. The centrifugal fan is mounted on the volute casing and drives air to pass sequentially through the evaporator and condenser before entering the air inlet. A limiting plate extends from the top of the volute casing, with both the evaporator and condenser interference-fitted to the limiting plate. Compared to existing technologies, the dehumidifier provided by this invention, due to the use of a centrifugal fan mounted on the volute casing and an evaporator and condenser interference-fitted to the limiting plate, ensures that all air passes through the evaporator and condenser, preventing air leakage, improving heat exchange and dehumidification efficiency, guaranteeing heat exchange and dehumidification effects, and enhancing the user experience.

[0006] Furthermore, the limiting plate has a draft angle, and the limiting plate is inclined to the plane where the air inlet is located. The limiting plate gradually rises in its extension direction, and the draft angle ranges from 0.5 degrees to 3 degrees. A reasonable draft angle can facilitate the demolding of the limiting plate while ensuring its strength.

[0007] Furthermore, the evaporator and condenser are arranged parallel to each other and spaced apart, both parallel to the plane of the air inlet. The evaporator has a first top surface, and the condenser has a second top surface. The first top surface is parallel to the second top surface, and the first top surface is higher than the second top surface. Both the first and second top surfaces cooperate with the limiting plate to avoid air leakage, improve heat exchange and dehumidification efficiency, and ensure the heat exchange and dehumidification effect.

[0008] Furthermore, the end of the first top surface near the air inlet is interference-fitted with the limiting plate, and the end of the first top surface away from the air inlet forms a first gap with the limiting plate; the end of the second top surface near the air inlet is interference-fitted with the limiting plate, and the end of the second top surface away from the air inlet forms a second gap with the limiting plate. This design ensures air leakage prevention while facilitating the assembly of the evaporator and condenser, achieving a labor-saving effect and thus improving assembly efficiency.

[0009] Furthermore, the volute includes an end wall, a top wall, a bottom wall, a first side wall, and a second side wall. The air inlet is located on the end wall. The top wall, first side wall, bottom wall, and second side wall are connected end-to-end and all connected to the end wall, surrounding the air inlet. The top wall is connected to a limiting plate, and the first side wall, bottom wall, and second side wall all abut against the condenser. This ensures that all the airflow passing through the condenser flows into the air inlet through the sealed cavity and is then blown outwards through the volute, thus guaranteeing the air volume and airflow effect.

[0010] Furthermore, the volute includes a first housing and a second housing, which are detachably connected and together form an installation cavity. An air inlet is located on the first housing, and an air outlet is located on the second housing. The air inlet communicates with the air outlet through the installation cavity. The centrifugal fan can drive air from the air inlet into the installation cavity and then blow it out into the room through the air outlet.

[0011] Furthermore, the dehumidifier also includes a support frame, on which the volute is mounted. An extension plate extends from the support frame, and both the evaporator and condenser are mounted on the extension plate, positioned between the extension plate and a limiting plate. The extension plate supports and secures the evaporator and condenser, preventing displacement relative to the extension plate. Indoor air, driven by a centrifugal fan, enters between the extension plate and the limiting plate, passes sequentially through the evaporator and condenser, and then flows back into the room through the volute.

[0012] Furthermore, the extension plate is provided with a first retaining block and a second retaining block. The first retaining block has a first retaining groove in which the evaporator is retained. The second retaining block has a second retaining groove in which the condenser is retained. The first retaining block can limit the evaporator through the first retaining groove to fix the relative position of the evaporator and the extension plate. The second retaining block can limit the condenser through the second retaining groove to fix the relative position of the condenser and the extension plate.

[0013] Furthermore, the height of the evaporator is less than the height of the condenser, and the bottom wall of the first slot is higher than the bottom wall of the second slot. This ensures the reliability of the fit between the evaporator and condenser and the limiting plate, preventing air leakage.

[0014] Furthermore, the extension plate is also provided with a first support block and a second support block. The top of the first support block is at the same height as the bottom wall of the first slot, and the first support block abuts against the evaporator. The top of the second support block is at the same height as the bottom wall of the second slot, and the second support block abuts against the condenser. The first support block is used to support the evaporator to ensure the reliability of the engagement between the evaporator and the first slot, and the second support block is used to support the condenser to ensure the reliability of the engagement between the condenser and the second slot. Attached Figure Description

[0015] Figure 1 This is an exploded view of the dehumidifier described in an embodiment of the present invention;

[0016] Figure 2 This is an exploded view of the volute casing in the dehumidifier described in this embodiment of the invention;

[0017] Figure 3 This is a half-sectional view of the dehumidifier described in an embodiment of the present invention;

[0018] Figure 4 This is a schematic diagram of the structure of the dehumidifier described in the embodiment of the present invention, showing the evaporator and condenser cooperating with the limiting plate;

[0019] Figure 5 This is a schematic diagram of the support frame in the dehumidifier described in an embodiment of the present invention.

[0020] Explanation of reference numerals in the attached figures:

[0021] 100-Dehumidifier; 110-Volume; 111-Air inlet; 112-First housing; 1121-End wall; 1122-Top wall; 1123-Bottom wall; 1124-First side wall; 1125-Second side wall; 1126-Sealed cavity; 113-Second housing; 114-Mounting cavity; 115-Air outlet; 116-Limiting plate; 120-Centrifugal fan; 130-Evaporator; 131-First top surface; 132-First gap; 140-Condenser; 141-Second top surface; 142-Second gap; 150-Support frame; 151-Extension plate; 152-First retaining block; 153-Second retaining block; 154-First support block; 155-Second support block; 156-First slot; 157-Second slot; 160-Outer shell; 170-Compressor. Detailed Implementation

[0022] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0023] Please refer to the reference. Figures 1 to 3 This invention provides a dehumidifier 100 for reducing indoor air humidity. It ensures that all air passes through the evaporator 130 and condenser 140, preventing air leakage, improving heat exchange and dehumidification efficiency, guaranteeing heat exchange and dehumidification effects, and enhancing the user experience.

[0024] It should be noted that the dehumidifier 100 is placed indoors. The dehumidifier 100 can draw in indoor air, dehumidify it, and then expel the dehumidified air back into the room to achieve the dehumidification effect.

[0025] The dehumidifier 100 includes a volute 110, a centrifugal fan 120, an evaporator 130, a condenser 140, and a support frame 150. The volute 110 has an air inlet 111 for allowing air to flow into it. Both the evaporator 130 and the condenser 140 are located outside the air inlet 111, with the evaporator 130 positioned on the side of the condenser 140 furthest from the air inlet 111, so that air passes sequentially through the evaporator 130 and the condenser 140 before flowing into the air inlet 111. The centrifugal fan 120 is mounted on the volute 110 and generates negative pressure to drive air sequentially through the evaporator 130 and the condenser 140 before entering the air inlet 111. Specifically, a limiting plate 116 is provided on the top of the volute 110. Both the evaporator 130 and the condenser 140 are interference-fitted with the limiting plate 116 to prevent gaps from forming between the evaporator 130 and the limiting plate 116, and at the same time to prevent gaps from forming between the condenser 140 and the limiting plate 116. In this way, it can be ensured that all air passes through the evaporator 130 and the condenser 140, avoiding air leakage, improving heat exchange and dehumidification efficiency, ensuring heat exchange and dehumidification effect, and improving user experience.

[0026] Furthermore, the volute 110 is mounted on the support frame 150, which limits and fixes the volute 110 to prevent displacement of the volute 110 relative to the support frame 150. The support frame 150 extends with an extension plate 151, which is spaced apart from the limiting plate 116. The evaporator 130 and condenser 140 are both mounted on the extension plate 151 and positioned between the extension plate 151 and the limiting plate 116. The extension plate 151 supports and fixes the evaporator 130 and condenser 140 to prevent displacement of the evaporator 130 and condenser 140 relative to the extension plate 151. Indoor air can enter between the extension plate 151 and the limiting plate 116 under the action of the centrifugal fan 120, pass through the evaporator 130 and condenser 140 in sequence, and then flow back into the room through the volute 110.

[0027] It is worth noting that the dehumidifier 100 also includes a housing 160, a compressor 170, and a throttling device (not shown). The volute 110, centrifugal fan 120, evaporator 130, condenser 140, support frame 150, compressor 170, and throttling device are all housed within the housing 160. The evaporator 130 and condenser 140 are spaced apart, with the condenser 140 positioned between the evaporator 130 and the volute 110. The centrifugal fan 120 drives air to pass sequentially through the evaporator 130 and condenser 140, and then through the volute 110 into the room. During this process, the evaporator 130 and condenser 140 work together to dehumidify the passing air, achieving dehumidification without affecting the indoor temperature.

[0028] Furthermore, the compressor 170, condenser 140, throttling device, and evaporator 130 are connected end-to-end and combined to form a refrigerant flow path for refrigerant flow. During the refrigerant flow process, the compressor 170 compresses the refrigerant and delivers the high-temperature, high-pressure gaseous refrigerant to the condenser 140; the condenser 140 exchanges heat with the refrigerant to cool the high-temperature, high-pressure gaseous refrigerant into a low-temperature, high-pressure liquid refrigerant, which then flows to the throttling device; the throttling device throttles the refrigerant to change the low-temperature, high-pressure liquid refrigerant into a low-temperature, low-pressure liquid refrigerant, which then flows to the evaporator 130; the evaporator 130 exchanges heat with the refrigerant to change the low-temperature, low-pressure liquid refrigerant into a low-pressure gaseous refrigerant, which then flows back to the compressor 170. During this process, the centrifugal fan 120 generates negative pressure to draw indoor air into the outer casing 160, and then through the evaporator 130 and condenser 140 in sequence to form an exhaust airflow, which is finally blown out through the volute 110 to achieve the dehumidification function.

[0029] Specifically, as the airflow passes through the evaporator 130, the low-temperature, low-pressure liquid refrigerant in the evaporator 130 absorbs heat from the airflow, causing moisture in the airflow to condense on the evaporator 130 and form condensation. At this time, the airflow cools down, and the low-temperature, low-pressure liquid refrigerant heats up to form low-pressure gaseous refrigerant, thus achieving dehumidification. As the airflow passes through the condenser 140, it absorbs heat from the high-temperature, high-pressure gaseous refrigerant in the condenser 140. At this time, the airflow heats up (restoring its temperature to near room temperature), and the high-temperature, high-pressure gaseous refrigerant cools down to form low-temperature, high-pressure liquid refrigerant. In this way, because the airflow cools down and then heats up during its passage through the evaporator 130 and condenser 140, finally reaching a temperature close to room temperature, the airflow blown out from the volute 110 does not significantly affect the room temperature, improving the user experience.

[0030] In this embodiment, the limiting plate 116 has a draft angle to facilitate demolding, thereby facilitating the manufacturing of the volute 110. Specifically, the limiting plate 116 is inclined to the plane of the air inlet 111, and the limiting plate 116 gradually rises in its extension direction, that is, the limiting plate 116 gradually moves away from the extension plate 151 in a direction away from the air inlet 111. The draft angle ranges from 0.5 degrees to 3 degrees. A reasonable draft angle can ensure the strength of the limiting plate 116 while facilitating demolding.

[0031] In this embodiment, the draft angle is 1 degree, but it is not limited to this. In other embodiments, the draft angle can be 0.5 degrees or 3 degrees. The size of the draft angle is not specifically limited.

[0032] Please refer to Figure 4 It is worth noting that both the evaporator 130 and the condenser 140 are plate heat exchangers, and both are rectangular plates. The evaporator 130 and condenser 140 are arranged parallel to each other and spaced apart, both parallel to the plane of the air inlet 111, to improve the uniformity of heat exchange with the air and ensure effective air intake. The evaporator 130 has a first top surface 131, and the condenser 140 has a second top surface 141. The first top surface 131 is parallel to the second top surface 141, and the first top surface 131 is higher than the second top surface 141. Both the first top surface 131 and the second top surface 141 cooperate with the limiting plate 116 to prevent air leakage, improve heat exchange and dehumidification efficiency, and ensure effective heat exchange and dehumidification. Specifically, since the limiting plate 116 gradually rises in the direction away from the air inlet 111, and the evaporator 130 is located on the 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 interference-fitted with the limiting plate 116, the evaporator 130 is raised 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 fit between the first top surface 131 and the second top surface 141 and the limiting plate 116.

[0033] In this embodiment, the end of the first top surface 131 near the air inlet 111 is press-fitted with the limiting plate 116, and the end of the first top surface 131 away from the air inlet 111 forms a first gap 132 with the limiting plate 116. The first gap 132 is triangularly arranged, meaning that part of the first top surface 131 is press-fitted with the limiting plate 116. This ensures air leakage prevention while facilitating the assembly of the evaporator 130, achieving a labor-saving effect and improving assembly efficiency. Similarly, the end of the second top surface 141 near the air inlet 111 is press-fitted with the limiting plate 116, and the end of the second top surface 141 away from the air inlet 111 forms a second gap 142 with the limiting plate 116. The second gap 142 is triangularly arranged, meaning that part of the second top surface 141 is press-fitted with the limiting plate 116. This ensures air leakage prevention while facilitating the assembly of the condenser 140, achieving a labor-saving effect and improving assembly efficiency.

[0034] Please continue to refer to Figure 2 The volute 110 includes a first housing 112 and a second housing 113. The first housing 112 and the second housing 113 are detachably connected to facilitate assembly and disassembly of the first housing 112 and the second housing 113, thereby facilitating maintenance and cleaning of the volute 110. The first housing 112 and the second housing 113 together form an installation cavity 114. A centrifugal fan 120 is installed in the installation cavity 114. An air inlet 111 is opened on the first housing 112, and an air outlet 115 is opened on the second housing 113. The air inlet 111 is connected to the air outlet 115 through the installation cavity 114. The centrifugal fan 120 can drive air from the air inlet 111 into the installation cavity 114, and then blow it out into the room through the air outlet 115.

[0035] 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. An 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 and all connected to the end wall 1121, surrounding 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 located on the side of the end wall 1121 away from the mounting cavity 114. The top wall 1122, the first side wall 1124, the bottom wall 1123, and the second side wall 1125 together form a sealed cavity 1126. The exhaust airflow passes through this sealed 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, which is located at the end of the top wall 1122 away from the end wall 1121. The limiting plate 116 and the top wall 1122 form an angle, the size of which is the same as the draft angle of the limiting plate 116. Specifically, the first side wall 1124, the bottom wall 1123, and the second side wall 1125 all abut against the condenser 140 to seal the gaps between the first side wall 1124, the bottom wall 1123, the second side wall 1125 and the condenser 140. The limiting plate 116 is also interference-fitted with the top of the condenser 140 to prevent air leakage. This ensures that all the airflow passing through the condenser 140 can flow into the air inlet 111 through the sealed cavity 1126 and then be blown out through the volute 110, thereby ensuring the air volume and airflow effect.

[0036] In this embodiment, the limiting plate 116, end wall 1121, top wall 1122, bottom wall 1123, first side wall 1124 and second side wall 1125 are integrally formed to improve the connection strength.

[0037] Please refer to Figure 5 It should be noted that the extension plate 151 is provided with a first retaining block 152, a second retaining block 153, a first support block 154, and a second support block 155. The first retaining block 152 has a first retaining groove 156, in which the evaporator 130 is retained. The first retaining block 152 can limit the evaporator 130 through the first retaining groove 156 to fix the relative position of the evaporator 130 and the extension plate 151, preventing the evaporator 130 from shifting relative to the extension plate 151. Similarly, the second retaining block 153 has a second retaining groove 157, in which the condenser 140 is retained. The second retaining block 153 can limit the condenser 140 through the second retaining groove 157 to fix the relative position of the condenser 140 and the extension plate 151, preventing the condenser 140 from shifting relative to the extension plate 151.

[0038] Furthermore, the top of the first support block 154 is at the same height as the bottom wall of the first slot 156. The first support block 154 abuts against the evaporator 130, and is used to support the evaporator 130 to ensure the reliability of the engagement between the evaporator 130 and the first slot 156. Similarly, the top of the second support block 155 is at the same height as the bottom wall of the second slot 157. The second support block 155 abuts against the condenser 140, and is used to support the condenser 140 to ensure the reliability of the engagement between the condenser 140 and the second slot 157.

[0039] In this embodiment, there are two first retaining blocks 152 and two second retaining blocks 153. A first support block 154 is disposed between the two first retaining blocks 152, and a second support block 155 is disposed between the two second retaining blocks 153. The two first retaining blocks 152 are disposed opposite to each other at both ends of the evaporator 130. The two first retaining blocks 152 work together to improve the retaining and limiting effect on the evaporator 130 and prevent the evaporator 130 from shifting. The two second retaining blocks 153 are disposed opposite to each other at both ends of the condenser 140. The two second retaining blocks 153 work together to improve the retaining and limiting effect on the condenser 140 and prevent the condenser 140 from shifting.

[0040] In this embodiment, the height of the evaporator 130 is less than the height of the condenser 140. In order to ensure that both the evaporator 130 and the condenser 140 are interference-fitted with the limiting plate 116, the evaporator 130 is raised, that is, the bottom wall of the first slot 156 is set higher than the bottom wall of the second slot 157, so as to ensure the reliability of the fit between the evaporator 130 and the condenser 140 and the limiting plate 116 and prevent air leakage.

[0041] The dehumidifier 100 described in this embodiment of the invention has a volute 110 with an air inlet 111. An evaporator 130 and a condenser 140 are both located outside the air inlet 111. The evaporator 130 is located on the side of the condenser 140 away from the air inlet 111. A centrifugal fan 120 is installed on the volute 110. The centrifugal fan 120 is used to drive air to pass through the evaporator 130 and the condenser 140 in sequence and enter the air inlet 111. A limiting plate 116 is provided on the top of the volute 110. The evaporator 130 and the condenser 140 are both interference-fitted with the limiting plate 116. Compared with the prior art, the dehumidifier 100 provided by the present invention uses a centrifugal fan 120 installed in the volute 110 and an evaporator 130 and a condenser 140 that are interference-fitted with the limiting plate 116. Therefore, it can ensure that all air passes through the evaporator 130 and the condenser 140, avoid air leakage, improve heat exchange and dehumidification efficiency, ensure heat exchange and dehumidification effect, and enhance user experience.

[0042] While the present invention has been disclosed above, it is not limited thereto. Any person skilled in the art can make various modifications and alterations without departing from the spirit and scope of the invention; therefore, the scope of protection of the present invention should be determined by the scope defined in the claims.

Claims

1. A dehumidifier characterized by comprising: The application relates to a centrifugal air cooler, which comprises a volute (110), a centrifugal fan (120), an evaporator (130) and a condenser (140), the volute (110) is provided with an air inlet (111), the evaporator (130) and the condenser (140) are arranged outside the air inlet (111), the evaporator (130) is located on the side of the condenser (140) away from the air inlet (111), the centrifugal fan (120) is installed 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 then enter the air inlet (111), the top of the volute (110) is provided with a limiting plate (116), and the evaporator (130) and the condenser (140) are in interference fit with the limiting plate (116). The limiting plate (116) is provided with a demolding slope, the limiting plate (116) is arranged to be inclined to the plane where the air inlet (111) is located, the limiting plate (116) gradually rises in the extending direction, and the range of the demolding slope is 0.5-3 degrees. The evaporator (130) and the condenser (140) are arranged in parallel and are spaced apart, and are parallel to the plane where the air inlet (111) is located, the evaporator (130) is provided with a first top surface (131), the condenser (140) is provided with a second top surface (141), the first top surface (131) is parallel to the second top surface (141), the first top surface (131) is arranged to be higher than the second top surface (141), and the first top surface (131) and the second top surface (141) are in interference fit with the limiting plate (116). One end of the first top surface (131) close to the air inlet (111) is in interference fit with the limiting plate (116), and a first gap (132) is formed between the other end of the first top surface (131) away 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 the other end of the second top surface (141) away from the air inlet (111) and the limiting plate (116). 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 arranged 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 in series and are connected to the end wall (1121) and arranged outside the air inlet (111), the top wall (1122) is connected to the limiting plate (116), and the first side wall (1124), the bottom wall (1123) and the second side wall (1125) abut against the condenser (140).

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

3. The dehumidifier of claim 1, wherein, The dehumidifier further comprises a support frame (150), the volute (110) is mounted on the support frame (150), and the support frame (150) is provided with an extension plate (151) in extension, the evaporator (130) and the condenser (140) are both mounted on the extension plate (151) and are both arranged between the extension plate (151) and the limiting plate (116).

4. The dehumidifier according to claim 3, 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), and 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).

5. The dehumidifier according to claim 4, wherein The height of the evaporator (130) is less than the height of the condenser (140), and the bottom wall of the first clamping groove (156) is higher than the bottom wall of the second clamping groove (157).

6. The dehumidifier according to claim 4, 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 at the same height as the bottom wall of the first clamping groove (156), the first supporting block (154) abuts against the evaporator (130), the top of the second supporting block (155) is at the same height as the bottom wall of the second clamping groove (157), and the second supporting block (155) abuts against the condenser (140).

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