Air treatment equipment

Abstract

The utility model discloses air treatment equipment. The space in a shell can be saved while the static pressure capacity of a fan is improved. The utility model relates to air treatment equipment which comprises a shell, an air inlet and an air outlet. The fan is arranged in the shell, the fan comprises a volute used for containing an impeller, the volute is provided with a blow-out opening used for blowing out air, and the fan is characterized in that a volute extension part is arranged at the blow-out opening; and at least one part of the volute extension part extends from the blow-out opening to the outside of the inner wall of the shell.

Description

Technical Field

[0001] The utility model relates to an air treatment device for treating air. Background Art

[0002] As air treatment devices, there are fresh air fans for circulating indoor air, air supply fans for conveying air, total heat exchange devices with total heat exchange cores for heat exchange of air, dehumidifying devices for dehumidifying air, humidifying devices for humidifying air, etc.

[0003] Among them, the fresh air fan usually includes a housing, on which a fresh air inlet and an air supply outlet facing the indoor side are provided. An air flow passage is formed between the fresh air inlet and the air supply outlet, and a centrifugal fan assembly is arranged on the air flow passage, and the centrifugal fan assembly is arranged on one side of the air supply outlet; an air purification assembly and an air heating assembly (such as a heat exchanger, an electric heater, etc.) can also be arranged on the air flow passage.

[0004] The air supply fan has a structure roughly the same as that of the fresh air fan, but it can be an exhaust fan for exhausting air from the indoor to the outdoor.

[0005] The humidifying device includes a housing, on which an air inlet and an air outlet are provided. An air flow passage is formed between the air inlet and the air outlet, and a centrifugal fan assembly is arranged on the air flow passage, and the centrifugal fan assembly is arranged on one side of the air supply outlet; a humidifying module (such as a moisture-permeable membrane humidifying element, a spray humidifying element, etc.) is also arranged on the air flow passage, and it can also include a water tank for supplying water to the humidifying element, and valves for controlling the water circuit, etc.

[0006] The dehumidifying device has a structure roughly the same as that of the humidifying device, and a dehumidifying element (such as a rotary dehumidifying element, a heat exchanger (refrigeration dehumidification), an adsorption dehumidifying element, etc.) is arranged in the housing, and it can also include a drainage tank, etc.

[0007] The above devices are usually hoisted in the ceiling, and the air outlets are connected to the air ducts.

[0008] Generally speaking, an air treatment device includes: a housing, on which a ventilation opening is provided; and a fan, the fan is arranged inside the housing, and the fan includes an impeller and a volute for accommodating the impeller.

[0009] In the existing air treatment devices, in order to improve the static pressure capacity of the fan, sometimes an extension section is added at the air blowing outlet of the volute. However, this extension section is located inside the housing, reducing the available space inside the housing and making the arrangement of the components inside the housing more crowded, which is not conducive to improving the overall performance of the machine. Or, it will cause the housing to be too large, resulting in the air treatment device being unable or difficult to be installed in a place with a small installation environment. Summary of the Utility Model

[0010] The present utility model is completed in view of the above problems, and its purpose is to provide an air treatment device that can save the space inside the housing while improving the static pressure capacity of the fan.

[0011] To achieve the above object, the present utility model provides an air treatment device, including: a housing provided with a ventilation opening thereon; and a fan disposed inside the housing, the fan including a volute for accommodating an impeller, the volute having a blowing outlet for blowing air, wherein a volute extension portion is provided at the blowing outlet, and at least a part of the volute extension portion extends from the blowing outlet to the outside of the inner wall of the housing.

[0012] According to the air treatment device of the present utility model, since at least a part of the volute extension portion extends from the blowing outlet to the outside of the inner wall of the housing, the volute extension portion does not occupy too much internal space of the housing, can save the space inside the housing while improving the static pressure capacity of the fan, thereby optimizing the component layout and improving the overall performance of the air treatment device. In addition, the miniaturization of the housing can be achieved, which is convenient for installation and maintenance and does not affect the connection between the ventilation pipe and the flange. Especially in cases where the installation space is small or limited due to the intersection and density of water pipes, gas pipes, and electric wire pipes, such as on the top of a kitchen or bathroom, the installation and operation of the air treatment device can also be realized.

[0013] Preferably, the air treatment device further includes a flange, the flange is disposed outside the housing in such a way that its outer surface surrounds the ventilation opening, and at least a part of the volute extension portion extends into the flange.

[0014] According to the air treatment device of the present utility model, since at least a part of the volute extension portion extends into the flange, the volute extension portion can be formed to be longer, and the static pressure capacity of the fan can be improved while saving the space inside the housing.

[0015] Preferably, the flange includes: a flange fixing portion for fixing to the housing; a flange connecting portion for connecting with a ventilation pipe; and a flange transition portion between the flange fixing portion and the flange connecting portion, and the volute extension portion is received in the flange transition portion.

[0016] According to the air treatment device of the present utility model, since the volute extension portion is received in the flange transition portion, the volute extension portion does not occupy the internal space of the housing, can further save the space inside the housing. In addition, the miniaturization of the housing can be further realized, which is more convenient for installation and maintenance.

[0017] Preferably, the volute extension portion is integrally formed with the flange.

[0018] According to the air treatment device of the present utility model, since the volute extension part and the flange are integrally formed, the volute extension part can be simply manufactured, and the structure is simple. Moreover, it can improve the noise generated by the impact of the air flow on the flange, and the sound insulation performance is excellent. In addition, the air tightness is strong, and gas leakage can be prevented.

[0019] Preferably, the volute extension part is integrally formed with the housing.

[0020] According to the air treatment device of the present utility model, since the volute extension part is integrally formed with the housing, the volute extension part can be simply manufactured, and the structure is simple. Moreover, the volute extension part can be formed longer, the air flow passage is enlarged, the speed of the air flow is reduced, and the air flow in the reduced part will become static pressure, so that the speed can be reduced and the pressure can be increased, and the kinetic energy of the outgoing air flow can be recovered. In addition, the air tightness is strong, and gas leakage can be prevented.

[0021] Preferably, the volute extension part is formed separately as an independent component.

[0022] According to the air treatment device of the present utility model, since the volute extension part is formed separately as an independent component, the volute extension part can be simply manufactured, and the structure is simple. Moreover, the assembly property is high, and it is easy to repair and disassemble.

[0023] Preferably, the volute extension part is connected to one of the housing and the volute in a clamping or threaded connection manner.

[0024] According to the air treatment device of the present utility model, since the volute extension part is connected to one of the housing and the volute in a clamping or threaded connection manner, the volute extension part can be simply assembled, the assembly property is high, and it is easy to repair and disassemble.

[0025] Preferably, the housing includes an outer housing made of a metal material and an inner housing made of a foaming material or a soft material that is fitted inside the outer housing, and at least a part of the volute extension part extends from the air outlet to the outside of the inner wall of the inner housing.

[0026] According to the air treatment device of the present utility model, since the housing includes an outer housing made of a metal material and an inner housing made of a foaming material or a soft material, noise can be adsorbed by the foaming material or the soft material to reduce abnormal noise, and the sound insulation performance is excellent while ensuring the strength of the housing. In addition, the foaming material or the soft material can be used to ensure the sealing performance and perform heat insulation, so as to achieve a heat preservation effect.

[0027] Preferably, the material of the volute is one of a foaming material, a resin material, and a metal material.

[0028] According to the air handling equipment of the present utility model, since the material of the volute is one of foaming material, resin material, and metal material, the volute can be easily manufactured.

[0029] Preferably, the material of the volute is resin material, and the material of the volute extension part is foaming material.

[0030] According to the air handling equipment of the present utility model, since the material of the volute is resin material and the material of the volute extension part is foaming material, the manufacturing cost can be reduced.

[0031] Preferably, the fan is a centrifugal fan, and the air handling equipment is one of a fresh air fan, a supply fan, a total heat exchange equipment, a dehumidifying device, and a humidifying device.

[0032] According to the air handling equipment of the present utility model, in a fresh air fan, a supply fan, a total heat exchange equipment, a dehumidifying device, a humidifying device, etc. having a centrifugal fan, while improving the static pressure capacity of the fan, the space inside the housing can be saved. Description of the Drawings

[0033] Figure 1 It is a perspective view schematically showing the air handling equipment of the embodiment of the present utility model.

[0034] Figure 2 It is a bottom view schematically showing the air handling equipment of the embodiment of the present utility model, in which the bottom plate of the housing is omitted.

[0035] Figure 3 It is a side view schematically showing the fan and its peripheral structure included in the air handling equipment of the embodiment of the present utility model.

[0036] Figure 4 It is a plan view schematically showing the volute and the volute extension part included in the air handling equipment of the embodiment of the present utility model.

[0037] Figure 5 It is a perspective view schematically showing the fan and its peripheral structure included in the air handling equipment of the embodiment of the present utility model.

[0038] Figure 6 It is a partial enlarged perspective view schematically showing the fan and its peripheral structure included in the air handling equipment of the embodiment of the present utility model.

[0039] (Symbol Description)

[0040] 1 Air handling equipment

[0041] 10 Fan

[0042] 10a Air supply fan

[0043] 10b Exhaust fan

[0044] 101 Volute

[0045] 101a Blowing outlet

[0046] 102 Impeller

[0047] 103 Motor

[0048] 104 Motor support

[0049] 105 Volute extension

[0050] 105a Air outlet

[0051] 20 Flange

[0052] 201 Flange fixing part

[0053] 202 Flange connecting part

[0054] 203 Flange transition part

[0055] DJ Hoisting tool

[0056] KT Housing

[0057] XF Fresh air inlet

[0058] SF Air supply outlet

[0059] HF Return air inlet

[0060] PF Exhaust air outlet

[0061] TF Ventilation opening

[0062] JF Inlet

[0063] HX Total heat exchange core Detailed implementation manners

[0064] Now, each implementation manner of the present utility model will be described in detail. Examples of these implementation manners are shown in the drawings and described as follows. Although the present utility model will be described in combination with exemplary implementation manners, it should be understood that this specification is not intended to limit the present utility model to those exemplary implementation manners. On the contrary, the present utility model is intended to cover not only these exemplary implementation manners, but also various alternative forms, modification forms, equivalent forms and other implementation manners that may be included within the spirit and scope of the present utility model as defined by the appended claims.

[0065] Next, in combination with Figures 1 to 6 the air treatment device 1 of the implementation manner of the present utility model will be described.

[0066] (Overall structure of the air handling device 1)

[0067] In this embodiment, as shown in Figure 1 and Figure 2 , the air handling device 1 is a total heat exchange device, which is, for example, suspended and fixed to the space behind the indoor ceiling by a sling DJ or the like for use.

[0068] The air handling device 1 includes a housing KT. In this embodiment, the housing KT includes, for example, an outer housing made of a metal material and an inner housing that is fitted and provided on the inner side of the outer housing and made of a foaming material or a soft material such as a polymer material or an integral foam part. The outer housing is, for example, made by stamping a metal plate. Therefore, while ensuring the strength of the housing KT, the foaming material or the soft material can be used to adsorb noise, reduce abnormal noise, and the sound insulation performance is excellent. Also, the foaming material or the soft material can be used to ensure the sealing performance and perform heat insulation, thereby achieving a heat preservation effect.

[0069] The housing KT is formed in a substantially rectangular parallelepiped shape and has a top plate, a bottom plate spaced apart from the top plate, and side plates extending from the periphery of the top plate to the periphery of the bottom plate (the top plate and the bottom plate can be formed separately from the side plates or integrally with the side plates).

[0070] A fresh air inlet XF, an exhaust air outlet PF, a return air inlet HF, and a supply air outlet SF are provided on the side plates of the housing KT. An air supply path from the fresh air inlet XF to the supply air outlet SF and an exhaust air path from the return air inlet HF to the exhaust air outlet PF are formed inside the housing KT. A total heat exchange core HX serving as a heat exchanger is provided inside the housing KT, and at least one of the bottom plate and the top plate of the housing KT is provided with a maintenance opening through which the total heat exchange core HX can enter and exit and a maintenance cover for opening and closing the maintenance opening. The total heat exchange core HX has a first air flow channel constituting a part of the air supply path and a second air flow channel constituting a part of the exhaust air path, and the air flow flowing through the first air flow channel can exchange heat with the air flow flowing through the second air flow channel.

[0071] A fan 10 is provided inside the housing KT and includes a supply air fan 10a provided in the air supply path and an exhaust air fan 10b provided in the exhaust air path. In this embodiment, the fan 10 is a centrifugal fan.

[0072] When the air handling device 1 performs air treatment on an object space such as a room, through the operation of the fan 10, outdoor air can be introduced into the air supply path inside the housing KT from the fresh air inlet XF and blown out to the room from the supply air outlet SF, and indoor air can be introduced into the exhaust air path inside the housing KT from the return air inlet HF and blown out to the outside from the exhaust air outlet PF. In addition, an ion generating device for purifying the air in the air supply path can be provided at a position close to the supply air outlet SF in the air supply path.

[0073] (The blower 10 and its peripheral structure)

[0074] The following will refer to Figures 2 to 6 to describe the blower 10 of the present utility model and its peripheral structure.

[0075] The blower 10 of the present utility model and its peripheral structure can be used for both the air supply blower 10a and the exhaust blower 10b. The following will be collectively referred to as the blower 10 for description.

[0076] As Figure 5 shown, a ventilation opening TF (air supply opening SF or exhaust opening PF) is provided on the side plate of the housing KT.

[0077] Outside the housing KT, a flange 20 is provided in a manner that surrounds the ventilation opening TF with its outer surface. In the present embodiment, the ventilation opening TF is formed as a rectangle, but it is not limited thereto and can also be other shapes such as a circle. In the present embodiment, the flange 20 includes: a flange fixing portion 201 for fixing to the housing KT; a flange connecting portion 202 for connecting to a ventilation pipe (not shown) and the like; and a flange transition portion 203 located between the flange fixing portion 201 and the flange connecting portion 202. In the present embodiment, the flange fixing portion 201 is fixed around the ventilation opening TF of the housing KT by screws or the like. The flange transition portion 203 is formed in a substantially rectangular parallelepiped shape with protrusions at the centers of the upper and lower sides.

[0078] As Figures 2 to 5 shown, the blower 10 includes: a volute 101 in the shape of a volute; an impeller 102 housed in the volute 101; a motor 103 provided below the volute 101 for driving the impeller 102; and a motor bracket 104 provided below the motor 103 for supporting the motor 103.

[0079] The volute 101 is generally composed of an upper volute and a lower volute. An air inlet JF for sucking air is provided at the central part of the upper volute and the lower volute. The air inlet JF is formed by opening at the centers of the upper and lower surfaces of the volute 101 and smoothly extending the edges on the inner diameter side of the opening into the interior of the volute 101. However, the structure of the volute 101 is not limited thereto and can also be composed of a plate-shaped volute bottom plate and a volute cover provided on the volute bottom plate.

[0080] The material of the volute 101 is one of a foaming material, a resin material, and a metal material. Thus, the volute 101 can be easily manufactured. Preferably, the material of the volute 101 is a resin material. Additionally, a wire groove (not shown) can be formed on the surface of the volute 101 for wires and the like to pass through. Further, mounting feet can be integrally formed on the lower volute to directly mount the volute 101 on the housing KT. Moreover, the motor bracket 104 can be made of a resin material, and a fixing portion can be integrally formed on the motor bracket 104 to directly fix the motor bracket 104 on the housing KT through the fixing portion.

[0081] As Figures 2 to 5 shown, at one end of the volute 101 on the side leading to the ventilation opening TF (air supply opening SF or exhaust opening PF), an air outlet 101a for blowing out air is formed, and a flange portion protruding outward can be formed around the air outlet 101a.

[0082] The impeller 102 includes a partition plate, blades vertically provided on the upper and lower surfaces of the partition plate, and a shaft hole through which the rotating shaft of the motor 103 passes.

[0083] When the motor 103 drives the impeller 102, air flow is inhaled from the air inlet JF of the volute 101 and blown out through the air outlet 101a of the volute 101 via the air duct formed by the volute 101.

[0084] (Main features of the present utility model)

[0085] Next, with reference to Figures 4 to 6 the main features of the air treatment device 1 of the present utility model will be described.

[0086] The main feature of the present utility model is that a volute extension portion 105 is provided at the air outlet 101a, and at least a part of the volute extension portion 105 extends from the air outlet 101a to the outside of the inner wall of the housing KT. Specifically, in this embodiment, at least a part of the volute extension portion 105 extends from the air outlet 101a to the outside of the inner wall of the inner housing of the housing KT. Therefore, the volute extension portion 105 does not occupy too much internal space of the housing KT, can save the space inside the housing KT while improving the static pressure capacity of the fan 10, thereby optimizing the layout of components inside the housing KT and improving the overall performance of the air treatment device 1. Additionally, miniaturization of the housing KT can be achieved, which is convenient for installation and maintenance and does not affect the connection between the ventilation pipe and the flange 20. Especially in situations such as on the top of a kitchen or a bathroom where the installation space is small or limited due to the intersection and density of water pipes, gas pipes, and electric wire pipes, the installation and operation of the air treatment device 1 can also be realized.

[0087] In the present embodiment, at least a part of the volute extension portion 105 extends into the interior of the flange 20. Therefore, the volute extension portion 105 can be formed to be relatively long, and the static pressure capacity of the blower 10 can be improved while saving space inside the housing KT.

[0088] Preferably, in the present embodiment, the volute extension portion 105 is the same as the flange transition portion 203, and is formed in a substantially rectangular parallelepiped shape with protrusions at the centers of the upper and lower sides, and the volute extension portion 105 is received in the flange transition portion 203. Therefore, the volute extension portion 105 does not occupy the internal space of the housing KT, and the space inside the housing KT can be further saved. In addition, the miniaturization of the housing KT can be further achieved, and installation and maintenance are more convenient.

[0089] In addition, in the present embodiment, the volute extension portion 105 is formed as an independent component and can be connected to one of the housing KT and the volute 101 by means of snap connection or screw connection. At this time, the volute extension portion 105 can be simply manufactured, and the structure is simple. Moreover, the volute extension portion 105 can be simply assembled, with high assembly property, and is easy to repair and disassemble.

[0090] The material of the volute extension portion 105 is not particularly limited. For example, a foaming material or a resin material is preferably used. At this time, the manufacturing cost can be reduced.

[0091] (Variant example)

[0092] The present utility model has been described above in an exemplary manner with reference to the accompanying drawings. Obviously, the specific implementation of the present utility model is not limited by the above embodiments.

[0093] (1) In the above embodiment, the air treatment device 1 is a total heat exchange device, but it is not limited thereto, and it may also be a fresh air blower, a supply blower, a dehumidifying device, a humidifying device, etc. By applying the present utility model to a fresh air blower, a supply blower, a dehumidifying device, a humidifying device, etc., it is also possible to save the space inside the housing while improving the static pressure capacity of the blower.

[0094] (2) In the above embodiment, the volute extension portion 105 is formed as an independent component, but it is not limited thereto.

[0095] The volute extension portion 105 may also be integrally formed with the flange 20, that is, the volute extension portion 105 and the flange 20 are integrally formed into a single component. At this time, the volute extension portion 105 can be simply manufactured, and the structure is simple. Moreover, the noise generated by the impact of the air flow on the flange 20 can be improved, and the sound insulation is excellent. In addition, the airtightness is strong, and gas leakage can be prevented.

[0096] In addition, the volute extension part 105 can also be integrally formed with the housing KT. At this time, the volute extension part 105 can be simply manufactured, and the structure is simple. Moreover, the volute extension part 105 can be formed to be relatively long, the air flow passage is enlarged, the speed of the air flow is reduced, and the air flow in the reduced part will become static pressure, so that deceleration and pressurization can be achieved, and the kinetic energy of the outlet air flow can be recovered. Also, the airtightness is strong, and gas leakage can be prevented.

[0097] In addition, the volute extension part 105 and the volute 101 can be integrally formed or separately formed, and there is no particular limitation.

[0098] (3) In the above embodiment, the flange 20 includes the flange transition part 203, but it is not limited thereto. According to the situation, the flange transition part 203 can also be omitted, as long as at least a part of the volute extension part 105 extends into the flange 20 and the air outlet 105a of the volute 101 is located inside the flange 20.

[0099] (4) In the above embodiment, both the volute extension part 105 and the flange transition part 203 are formed in a substantially rectangular parallelepiped shape with protrusions at the centers of the upper and lower sides, but the shapes of the volute extension part 105 and the flange transition part 203 are not particularly limited, and can also be other shapes such as a simple rectangular parallelepiped shape or a cylindrical shape, and the shapes of the two can also be different.

[0100] (5) The technical solution of the present utility model can be applied to both the air supply fan 10a and the exhaust fan 10b, or can also be applied to only one of the air supply fan 10a and the exhaust fan 10b. That is, in the total heat exchange device of the above embodiment, it can be that only the volute 101 of one of the air supply fan 10a and the exhaust fan 10b has the volute extension part 105, or it can be that the volutes 101 of both the air supply fan 10a and the exhaust fan 10b have the volute extension part 105.

[0101] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "height", "upper", "lower", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present utility model.

[0102] Although the above has described the structure and working principle of the present utility model in combination with preferred embodiments, those of ordinary skill in the art should recognize that the above examples are only for illustrative purposes and cannot be used as a limitation to the present utility model. Therefore, modifications and variations can be made to the present utility model within the scope of the spirit of the claims, and these modifications and variations will all fall within the scope required by the claims of the present utility model.

Claims

1. An air handling device, comprising: a housing, on which a ventilation opening is provided; and a fan, the fan is arranged inside the housing, the fan includes a volute for accommodating an impeller, and the volute has a blowing outlet for blowing out air, characterized in that a volute extension part is provided at the blowing outlet, at least a part of the volute extension part extends from the blowing outlet to the outside of the inner wall of the housing.

2. The air handling device according to claim 1, characterized in that the air handling device further includes a flange, and the flange is arranged outside the housing in such a way that its outer surface surrounds the ventilation opening, at least a part of the volute extension part extends into the flange.

3. The air handling device according to claim 2, characterized in that the flange includes: a flange fixing part for fixing to the housing; a flange connecting part for connecting with a ventilation pipe; and a flange transition part between the flange fixing part and the flange connecting part, the volute extension part is received in the flange transition part.

4. The air handling device according to claim 2, characterized in that the volute extension part is integrally formed with the flange.

5. The air handling device according to claim 1, characterized in that the volute extension part is integrally formed with the housing.

6. The air handling device according to claim 1, characterized in that the volute extension part is separately formed as an independent component.

7. The air handling device according to claim 6, characterized in that the volute extension part is connected to one of the housing and the volute in a snap-fit or threaded connection manner.

8. The air handling device according to claim 1, characterized in that the housing includes an outer housing made of a metal material and an inner housing made of a foaming material or a soft material and fittingly arranged inside the outer housing, at least a part of the volute extension part extends from the blowing outlet to the outside of the inner wall of the inner housing.

9. The air handling device according to claim 1, characterized in that the material of the volute is one of a foaming material, a resin material, and a metal material.

10. The air handling device according to claim 9, characterized in that the material of the volute is a resin material, and the material of the volute extension part is a foaming material.

11. The air handling device according to any one of claims 1 to 10, characterized in that the fan is a centrifugal fan, the air handling device is one of a fresh air fan, a blower, a total heat exchange device, a dehumidifying device, and a humidifying device.

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