A dehumidifier

Abstract

The application discloses a dehumidifier, and relates to the technical field of air conditioners. The dehumidifier comprises a centrifugal fan, a volute and a negative ion module. The volute is provided with an air outlet, the centrifugal fan is installed in the volute, the centrifugal fan is used for driving air to blow out from the air outlet, the negative ion module is installed outside the volute, the negative ion module is provided with an emission head, the emission head partially extends into the volute, the emission head is located at one side of the volute close to the air outlet, and the emission head is used for emitting negative ions towards the volute. Compared with the prior art, the dehumidifier provided by the application can improve the emission concentration of negative ions, increase the emission range of negative ions, enhance the air purification effect and improve the user experience while ensuring the air outlet effect due to the adoption of the negative ion module installed outside the volute and the emission head extending into the volute and arranged close to the air outlet.

Description

TECHNICAL FIELD

[0001] The present application relates to the air conditioning technical field, and particularly relates to a dehumidifier. BACKGROUND

[0002] At present, with the increasing improvement of living standards, people have higher and higher requirements for indoor air comfort. In humid areas or rainy seasons, the indoor air humidity is relatively high, and a dehumidifier is usually needed to dehumidify the indoor air to improve the thermal comfort. In order to improve the functionality of the dehumidifier, many manufacturers add a negative ion function to the dehumidifier to achieve air purification effect. However, the concentration of negative ions emitted by the dehumidifier with negative ion function to the indoor is low, and the range is small, resulting in poor air purification effect and affecting user experience. SUMMARY

[0003] The problem solved by the present application is how to improve the emission concentration of negative ions while ensuring the air outlet effect, and increase the emission range of negative ions, so as to enhance the air purification effect and improve the user experience.

[0004] To solve the above problems, the technical scheme of the present application is as follows:

[0005] The present application provides a dehumidifier, which comprises a centrifugal fan, a volute and a negative ion module. The volute has an air outlet, the centrifugal fan is installed in the volute, and the centrifugal fan is used to drive air to blow out from the air outlet. The negative ion module is installed outside the volute, and the negative ion module is provided with an emission head. The emission head is partially inserted into the volute and is located on the side of the volute close to the air outlet. The emission head is used to emit negative ions into the volute. Compared with the prior art, the dehumidifier provided by the present application can improve the emission concentration of negative ions while ensuring the air outlet effect, and increase the emission range of negative ions, so as to enhance the air purification effect and improve the user experience.

[0006] Further, the negative ion module comprises a negative ion generator, the negative ion generator is electrically connected with the emission head, the negative ion generator and the emission head are spaced apart, and both are connected to the volute. The volute is used to support and fix the negative ion generator and the emission head.

[0007] Further, the volute is adjacent to an air inlet side wall and an air outlet top wall, the air inlet side wall is provided with an air inlet, the air outlet is provided in the air outlet top wall, the negative ion generator and the emission head are connected to the air inlet side wall and oppositely arranged on both sides of the air inlet, and are located at one end of the air inlet side wall close to the air outlet top wall. In order to shorten the distance between the negative ion generator and the emission head as much as possible under the condition that the emission head is arranged close to the air outlet, thereby shortening the length of the conductive wire, saving material cost, and facilitating the wiring of the conductive wire, and preventing the conductive wire from being trapped in the air inlet.

[0008] Further, the air inlet side wall is provided with a screw column, the negative ion generator is provided with a mounting table, the mounting table is provided with a through hole, the mounting table abuts against the screw column, and the screw column is used for threadedly cooperating with a screw penetrating through the through hole. The relative position of the mounting table and the screw column is fixed, thereby fixing the relative position of the negative ion generator and the air inlet side wall, and preventing the negative ion generator from being separated from the air inlet side wall.

[0009] Further, the air inlet side wall is provided with a mounting hole, the emission head is provided with an abutting table and a spring buckle at intervals, the emission head is partially arranged through the mounting hole, and the air inlet side wall is clamped between the abutting table and the spring buckle. The abutting table and the spring buckle jointly act to fix the relative position of the emission head and the air inlet side wall, prevent the emission head from being displaced relative to the air inlet side wall, and avoid the emission head from being separated from the air inlet side wall.

[0010] Further, the spring buckle is obliquely arranged on the circumferential surface of the emission head, the spring buckle gradually moves away from the emission head in the extension direction of the emission head and in the direction close to the abutting table, a preset included angle is formed between the spring buckle and the extension direction of the emission head, and the preset included angle ranges from 20 degrees to 45 degrees. A reasonable preset included angle can ensure that the spring buckle has sufficient deformation to firmly clamp the air inlet side wall between the spring buckle and the abutting table.

[0011] Further, the number of the abutting table and the spring buckle is two, the two abutting tables are oppositely arranged on both sides of the emission head in a first direction, the two spring buckles are oppositely arranged on both sides of the emission head in a second direction, and the first direction is perpendicular to the second direction. The two abutting tables and the two spring buckles are arranged around the emission head, so that the four sides of the emission head can be effectively limited, the inclination or deflection of the emission head is prevented, the stability of the emission head installation is improved, and the emission head is prevented from being separated from the air inlet side wall.

[0012] Further, the dehumidifier further comprises an electric control box and a conductive wire, the electric control box is connected to the emission head through the conductive wire, and the negative ion generator is connected to the conductive wire and located on the wiring path of the conductive wire. Since the negative ion generator is arranged on the wiring path of the conductive wire, an additional branch wire is not needed, which can effectively shorten the wiring length of the conductive wire and reduce the material cost.

[0013] Further, the volute is provided with a first wire clamping groove and a second wire clamping groove, the first wire clamping groove is arranged between the electric control box and the negative ion generator, the second wire clamping groove is arranged between the negative ion generator and the emission head, and the conductive wire is matched with the first wire clamping groove and the second wire clamping groove at the same time. The first wire clamping groove and the second wire clamping groove jointly act on the conductive wire to limit the conductive wire, so as to limit the wire path of the conductive wire, prevent the conductive wire from being scattered, and further avoid the interference of the conductive wire on other parts.

[0014] Further, the dehumidifier further comprises a shell, an evaporator and a condenser, the volute, the evaporator and the condenser are all installed in the shell, the evaporator and the condenser are arranged at intervals, the condenser is arranged between the evaporator and the volute, and the centrifugal fan is used to drive air to pass through the evaporator and the condenser in sequence and then enter the volute. The evaporator and the condenser jointly act on the passing air to perform dehumidification treatment, so as to achieve the effect of dehumidification without affecting the indoor temperature. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 is a structural schematic diagram of the dehumidifier described in the embodiment of the present application;

[0016] Figure 2 is an exploded view of the dehumidifier described in the embodiment of the present application;

[0017] Figure 3 is an exploded view of the connection between the negative ion module and the volute in the dehumidifier described in the embodiment of the present application;

[0018] Figure 4 is an exploded view of the connection between the volute and the centrifugal fan in the dehumidifier described in the embodiment of the present application from one perspective;

[0019] Figure 5 is an exploded view of the connection between the volute and the centrifugal fan in the dehumidifier described in the embodiment of the present application from another perspective;

[0020] Figure 6 is a structural schematic diagram of the emission head of the negative ion module in the dehumidifier described in the embodiment of the present application.

[0021] BRIEF DESCRIPTION OF DRAWINGS

[0022] 100 - dehumidifier; 110 - centrifugal fan wheel; 120 - volute; 121 - air outlet; 122 - first wire clamping groove; 123 - second wire clamping groove; 124 - air inlet side wall; 1241 - screw column; 1242 - boss; 1243 - reinforcing rib; 1244 - mounting hole; 125 - air outlet top wall; 126 - air inlet; 127 - first shell; 128 - second shell; 130 - negative ion module; 131 - emission head; 132 - negative ion generator; 133 - mounting table; 134 - through hole; 135 - abutting table; 136 - elastic buckle; 140 - electric control box; 150 - conductive wire; 160 - shell; 170 - evaporator; 180 - condenser; 190 - compressor; 200 - driving motor. DETAILED DESCRIPTION

[0023] In order to make the above-mentioned objectives, features and advantages of the present application more apparent, a specific embodiment of the present application will be described in detail below with reference to the accompanying drawings.

[0024] For reference Figures 1 to 6 The embodiment of the present application provides a dehumidifier 100 for reducing indoor air humidity. The dehumidifier 100 can improve the emission concentration of negative ions and increase the emission range of negative ions while ensuring the air outlet effect, thereby enhancing the air purification effect and improving the user experience.

[0025] It should be noted that the dehumidifier 100 is placed in the room, and the dehumidifier 100 can suck indoor air, perform dehumidification on the air, and then discharge the dehumidified air to the room, so as to achieve the dehumidification effect on the indoor air. Specifically, in the process of discharging the dehumidified air to the room by the dehumidifier 100, the dehumidifier 100 emits negative ions into the air, and the flowing air carries the negative ions to the room. The negatively charged negative ions and the positively charged dust floating in the indoor air are neutralized by the electrode, so that the dust is naturally deposited, thereby realizing the air purification function.

[0026] The dehumidifier 100 comprises a centrifugal fan wheel 110, a volute 120, a negative ion module 130, an electric control box 140, a conductive wire 150, an outer shell 160, an evaporator 170, a condenser 180, and a driving motor 200. The volute 120 has an air outlet 121. The driving motor 200 is in driving connection with the centrifugal fan wheel 110. The driving motor 200 is used to drive the centrifugal fan wheel 110 to rotate. The centrifugal fan wheel 110 is installed in the volute 120. The centrifugal fan wheel 110 is used to drive air to blow out from the air outlet 121 to form an air flow. The volute 120 is used to guide the air flow generated by the centrifugal fan wheel 110. The negative ion module 130 is installed outside the volute 120 to avoid interfering with the operation of the centrifugal fan wheel 110 and to prevent blocking the air flow and other influences. Specifically, the negative ion module 130 is provided with an emission head 131. The emission head 131 partially extends into the volute 120. The emission head 131 is located on the side of the volute 120 close to the air outlet 121. The emission head 131 is used to emit negative ions into the volute 120, so that the negative ions are carried in the air flow blown out from the air outlet 121. These negative ions drift to various places in the room under the action of the air flow to achieve the air purification function. In this way, since the negative ion module 130 is generally installed outside the volute 120, only part of the emission head 131 extends into the volute 120, so the negative ion module 130 will not affect the air flow. The emission head 131 is arranged on the side of the volute 120 close to the air outlet 121. The negative ions emitted by the emission head 131 can flow to the room with the air flow to the greatest extent. Therefore, the dehumidifier 100 can improve the emission concentration of negative ions as much as possible while ensuring the air outlet effect, increase the emission range of negative ions, and thus enhance the air purification effect and improve the user experience.

[0027] It should be noted that the volute 120, the evaporator 170, the condenser 180, and the electric control box 140 are all installed in the outer shell 160. The evaporator 170 and the condenser 180 are arranged in a spaced manner. The condenser 180 is arranged between the evaporator 170 and the volute 120. The centrifugal fan wheel 110 is used to drive air to pass through the evaporator 170 and the condenser 180 in sequence and then enter the volute 120. In this process, the evaporator 170 and the condenser 180 jointly act on the passing air to dehumidify the air without affecting the indoor temperature. Further, the electric control box 140 is connected with the negative ion module 130 through the conductive wire 150. The electric control box 140 is used to supply power to the negative ion module 130 through the conductive wire 150 and to control the start and stop of the negative ion module 130 to stably and reliably realize the negative ion function of the dehumidifier 100.

[0028] The dehumidifier 100 further comprises a compressor 190 and a throttling device (not shown in the figure), the compressor 190, the condenser 180, the throttling device and the evaporator 170 are connected in series and combined to form a refrigerant flow path for the refrigerant to flow. During the refrigerant flow, the compressor 190 is used to compress the refrigerant and deliver the high-temperature and high-pressure gaseous refrigerant to the condenser 180; the condenser 180 is used to exchange heat with the refrigerant to reduce the temperature of the high-temperature and high-pressure gaseous refrigerant to low-temperature and high-pressure liquid refrigerant, and make it flow to the throttling device; the throttling device is used to throttle the refrigerant to change the low-temperature and high-pressure liquid refrigerant into low-temperature and low-pressure liquid refrigerant, and make it flow to the evaporator 170; the evaporator 170 is used to exchange heat with the refrigerant to change the low-temperature and low-pressure liquid refrigerant into low-pressure gaseous refrigerant, and make it flow back to the compressor 190. In this process, the centrifugal fan 110 generates negative pressure to suck indoor air into the shell 160 and pass through the evaporator 170 and the condenser 180 in turn to form an air outflow, which is finally blown out through the air outlet 121 of the volute 120 to realize the dehumidification function.

[0029] Specifically, in the process of the air outflow passing through the evaporator 170, the low-temperature and low-pressure liquid refrigerant in the evaporator 170 absorbs the heat of the air outflow to make the moisture in the air outflow condense on the evaporator 170 and form condensation, at this time the air outflow is cooled, the low-temperature and low-pressure liquid refrigerant is heated to form low-pressure gaseous refrigerant, realizing the dehumidification function. In the process of the air outflow passing through the condenser 180, the air outflow absorbs the heat of the high-temperature and high-pressure gaseous refrigerant in the condenser 180, at this time the air outflow is heated (restored to close to indoor temperature), and the high-temperature and high-pressure gaseous refrigerant is cooled to form low-temperature and high-pressure liquid refrigerant.

[0030] Further, since the air outflow is first cooled and then heated to close to the indoor temperature in the process of passing through the evaporator 170 and the condenser 180 once, the air outflow blown out from the air outlet 121 will not have too much impact on the indoor temperature, improving the user experience. Moreover, since the air outflow flows through the evaporator 170 and the condenser 180 first and then blows through the emission head 131, the situation that the negative ions pass through the evaporator 170 and the condenser 180 with the air outflow can be avoided, preventing the negative ions from being lost under the action of the evaporator 170 and the condenser 180, and ensuring the air purification effect.

[0031] The negative ion module 130 comprises a negative ion generator 132 electrically connected with the emission head 131. The negative ion generator 132 is spaced apart from the emission head 131 and both are connected with the volute 120 for supporting and fixing the negative ion generator 132 and the emission head 131. Specifically, the emission head 131 is a release tip made of metal or carbon element. During the working process of the negative ion module 130, the negative ion generator 132 obtains direct current negative high voltage through the EMI processing circuit and the lightning protection circuit and delivers the direct current negative high voltage to the emission head 131 to generate high corona. In this process, the emission head 131 releases a large number of electrons at high speed, and the electrons are captured by oxygen molecules in the air to generate air negative ions, thereby achieving the function of the emission head 131 emitting negative ions.

[0032] Specifically, the electric control box 140 is connected with the emission head 131 through the conductive wire 150, and the negative ion generator 132 is connected with the conductive wire 150 and located on the wire path of the conductive wire 150. The electric control box 140 is used for simultaneously supplying power to the negative ion generator 132 and the emission head 131 through the conductive wire 150. Since the negative ion generator 132 is arranged on the wire path of the conductive wire 150, it is not necessary to additionally add a branch wire, which can effectively shorten the wire length of the conductive wire 150 and reduce the material cost.

[0033] In the embodiment, the volute 120 is provided with a first wire clamping groove 122 and a second wire clamping groove 123. The first wire clamping groove 122 is arranged between the electric control box 140 and the negative ion generator 132, and the second wire clamping groove 123 is arranged between the negative ion generator 132 and the emission head 131. The conductive wire 150 is matched with the first wire clamping groove 122 and the second wire clamping groove 123 at the same time, and the first wire clamping groove 122 and the second wire clamping groove 123 jointly act on the conductive wire 150 to limit the wire path of the conductive wire 150, thereby preventing the conductive wire 150 from being scattered and falling, and avoiding the interference of the conductive wire 150 with other components.

[0034] It is worth noting that the volute 120 is adjacent to the air inlet side wall 124 and the air outlet top wall 125, the volute 120 comprises a first shell 127 and a second shell 128, the first shell 127 is clamped with the second shell 128, the air inlet side wall 124 is arranged on the first shell 127, and the air outlet top wall 125 is arranged on the second shell 128. The air inlet side wall 124 is provided with an air inlet 126, and the air outlet 121 is provided on the air outlet top wall 125. Under the action of the centrifugal fan 110, the air flow passing through the evaporator 170 and the condenser 180 flows into the volute 120 from the air inlet 126 of the air inlet side wall 124, and is blown upward from the air outlet 121 of the air outlet top wall 125. Specifically, the negative ion generator 132 and the emission head 131 are both connected to the air inlet side wall 124, wherein the negative ion generator 132 is connected to the outer side of the air inlet side wall 124, and the emission head 131 is arranged through the air inlet side wall 124. The negative ion generator 132 and the emission head 131 are oppositely arranged on both sides of the air inlet 126, and are both located at one end of the air inlet side wall 124 close to the air outlet top wall 125, so as to shorten the distance between the negative ion generator 132 and the emission head 131 as much as possible under the condition of ensuring that the emission head 131 is arranged close to the air outlet 121, thereby shortening the length of the conductive wire 150, saving material cost, and facilitating the wiring of the conductive wire 150, preventing the conductive wire 150 from being trapped in the air inlet 126.

[0035] In the embodiment, the air inlet side wall 124 is provided with a screw column 1241, the negative ion generator 132 is provided with a mounting table 133, the mounting table 133 is provided with a through hole 134, the mounting table 133 abuts against the screw column 1241, and the screw column 1241 is used for threadedly cooperating with a screw passing through the through hole 134, so as to fix the relative position of the mounting table 133 and the screw column 1241, thereby fixing the relative position of the negative ion generator 132 and the air inlet side wall 124, and preventing the negative ion generator 132 from being separated from the air inlet side wall 124. Specifically, the position of the through hole 134 corresponds to the position of the screw column 1241, the screw passes through the through hole 134, and is tightened relative to the screw column 1241, so as to fasten the mounting table 133 on the screw column 1241, thereby fixing the relative position of the negative ion generator 132 and the screw column 1241.

[0036] Further, the air inlet side wall 124 is provided with a boss 1242 outwardly protruding, and the screw column 1241 is arranged on the boss 1242. The boss 1242 is used to elevate the screw column 1241, so as to prevent the negative ion generator 132 from interfering with other components on the volute 120 during installation, and to ensure the installation effect. In the embodiment, the screw column 1241 is provided with a plurality of reinforcing ribs 1243 arranged annularly outside the screw column 1241 and connected with the boss 1242. The plurality of reinforcing ribs 1243 jointly act to improve the connection strength of the screw column 1241 and the boss 1242, and prevent the screw column 1241 from being bent or broken.

[0037] It should be noted that the air inlet side wall 124 is provided with a mounting hole 1244, the emitting head 131 is provided with a resisting table 135 and a spring buckle 136 at intervals, and the emitting head 131 is partially arranged through the mounting hole 1244. The inner side wall of the mounting hole 1244 is used to limit the emitting head 131, so as to prevent the emitting head 131 from loosening relative to the mounting hole 1244. The air inlet side wall 124 is clamped between the resisting table 135 and the spring buckle 136, and the resisting table 135 and the spring buckle 136 jointly act to fix the relative position of the emitting head 131 and the air inlet side wall 124, prevent the emitting head 131 from being displaced relative to the air inlet side wall 124, and avoid the emitting head 131 from being separated from the air inlet side wall 124.

[0038] Specifically, the spring buckle 136 is elastic. During the installation of the emitting head 131, first, the end of the emitting head 131 close to the spring buckle 136 is inserted into the mounting hole 1244 from the outside of the air inlet side wall 124. During this process, the inner side wall of the mounting hole 1244 exerts pressure on the spring buckle 136, so as to overcome the elastic force of the spring buckle 136 and make the spring buckle 136 elastically deform. When the spring buckle 136 completely extends out of the mounting hole 1244, the resisting table 135 is just in abutment with the air inlet side wall 124. At this time, the inner side wall of the mounting hole 1244 no longer exerts pressure on the spring buckle 136, and the spring buckle 136 rebounds and resets under the action of its own elastic force, so as to clamp the air inlet side wall 124 between the resisting table 135 and the spring buckle 136, thereby fixing the relative position of the emitting head 131 and the air inlet side wall 124.

[0039] Further, the elastic buckles 136 are arranged on the circumferential surface of the emitting head 131 in an inclined manner, and gradually move away from the emitting head 131 in the extending direction of the emitting head 131 and the direction close to the abutting table 135, and the elastic buckles 136 can be elastically deformed towards the direction close to the emitting head 131 under the pressure of the inner side wall of the mounting hole 1244. Specifically, a preset included angle is formed between the elastic buckles 136 and the extending direction of the emitting head 131, and the range of the preset included angle is 20 degrees to 45 degrees, and the reasonable preset included angle can ensure that the elastic buckles 136 have sufficient deformation amount to firmly clamp the air inlet side wall 124 between the elastic buckles 136 and the abutting table 135. In the embodiment, the preset included angle is 30 degrees, but is not limited thereto, and in other embodiments, the preset included angle can be 20 degrees or 45 degrees, and the size of the preset included angle is not specifically limited.

[0040] In the embodiment, the number of the abutting tables 135 and the elastic buckles 136 is two, and the two abutting tables 135 are arranged on the two sides of the emitting head 131 in the first direction, and the two elastic buckles 136 are arranged on the two sides of the emitting head 131 in the second direction, and the first direction is perpendicular to the second direction, that is, the two abutting tables 135 and the two elastic buckles 136 are arranged on the four sides of the emitting head 131, so that the four sides of the emitting head 131 can be effectively limited, and the inclination or deflection of the emitting head 131 is prevented, the stability of the installation of the emitting head 131 is improved, and the situation that the emitting head 131 is separated from the air inlet side wall 124 is prevented.

[0041] The dehumidifier 100 provided in the embodiment of the present application has a discharge port 121 in a volute 120, a centrifugal fan 110 is installed in the volute 120, the centrifugal fan 110 is used to drive air to be blown out from the discharge port 121, and a negative ion module 130 is installed outside the volute 120, the negative ion module 130 is provided with an emitting head 131, the emitting head 131 partially extends into the volute 120, the emitting head 131 is located on the side of the volute 120 close to the discharge port 121, and the emitting head 131 is used to emit negative ions into the volute 120. Compared with the prior art, the dehumidifier 100 provided in the present application can improve the emission concentration of negative ions and increase the emission range of negative ions while ensuring the air discharge effect, thereby enhancing the air purification effect and improving the user experience.

[0042] Although the present application is disclosed as above, the present application is not limited thereto. Any person skilled in the art can make various changes and modifications without departing from the spirit and scope of the present application, and the protection scope of the present application should be subject to the range defined by the claims.

Claims

1. A dehumidifier, characterized in that, The device includes a centrifugal impeller (110), a volute (120), and a negative ion module (130). The volute (120) has an air outlet (121). The centrifugal impeller (110) is installed inside the volute (120) and is used to drive air to blow out from the air outlet (121). The negative ion module (130) is installed outside the volute (120) and is provided with an emitter (131). The emitter (131) is partially inserted into the volute (120) and is located on the side of the volute (120) near the air outlet (121). The emitter (131) is used to emit negative ions into the volute (120). The volute (120) is provided with an air inlet sidewall (124) and an air outlet top wall (125) adjacent to each other. The air inlet sidewall (124) is provided with a mounting hole (1244), and the transmitter head (131) is provided with a support platform (135) and a spring clip (136) spaced apart. The transmitter head (131) is partially disposed through the mounting hole (1244), and the air inlet sidewall (124) is held between the support platform (135) and the spring clip (136). The spring clip (136) is inclinedly disposed on the circumferential surface of the launch head (131). The spring clip (136) gradually moves away from the launch head (131) in the direction of extension of the launch head (131) and in the direction close to the support platform (135). A preset angle is formed between the spring clip (136) and the direction of extension of the launch head (131). The preset angle is in the range of 20 degrees to 45 degrees. The number of the abutment platform (135) and the number of the spring clips (136) are both two. The two abutment platforms (135) are arranged opposite to each other on both sides of the launch head (131) in a first direction, and the two spring clips (136) are arranged opposite to each other on both sides of the launch head (131) in a second direction. The first direction is perpendicular to the second direction.

2. The dehumidifier according to claim 1, characterized in that, The negative ion module (130) includes a negative ion generator (132), which is electrically connected to the emitter (131). The negative ion generator (132) and the emitter (131) are spaced apart and are both connected to the volute (120).

3. The dehumidifier according to claim 2, characterized in that, The air inlet sidewall (124) is provided with an air inlet (126), and the air outlet (121) is provided on the air outlet top wall (125). The negative ion generator (132) and the emitter (131) are both connected to the air inlet sidewall (124) and are arranged opposite to each other on both sides of the air inlet (126), and are both located at the end of the air inlet sidewall (124) near the air outlet top wall (125).

4. The dehumidifier according to claim 3, characterized in that, The air inlet sidewall (124) is provided with a screw post (1241), and the negative ion generator (132) is provided with a mounting platform (133). The mounting platform (133) has a through hole (134). The mounting platform (133) abuts against the screw post (1241), and the screw post (1241) is used to engage with the screw thread passing through the through hole (134).

5. The dehumidifier according to claim 2, characterized in that, The dehumidifier also includes an electrical control box (140) and a conductive wire (150). The electrical control box (140) is connected to the emitter (131) through the conductive wire (150). The negative ion generator (132) is connected to the conductive wire (150) and is located on the wiring path of the conductive wire (150).

6. The dehumidifier according to claim 5, characterized in that, The volute (120) has a first wire-holding groove (122) and a second wire-holding groove (123). The first wire-holding groove (122) is located between the electronic control box (140) and the negative ion generator (132). The second wire-holding groove (123) is located between the negative ion generator (132) and the emitter head (131). The conductive wire (150) cooperates with both the first wire-holding groove (122) and the second wire-holding groove (123).

7. The dehumidifier according to claim 1, characterized in that, The dehumidifier also includes a housing (160), an evaporator (170), and a condenser (180). The volute (120), the evaporator (170), and the condenser (180) are all installed inside the housing (160). The evaporator (170) and the condenser (180) are spaced apart. The condenser (180) is located between the evaporator (170) and the volute (120). The centrifugal fan (110) is used to drive air to pass through the evaporator (170) and the condenser (180) in sequence and enter the volute (120).

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