CN220453855U - New fan - Google Patents
New fan Download PDFInfo
- Publication number
- CN220453855U CN220453855U CN202322024961.3U CN202322024961U CN220453855U CN 220453855 U CN220453855 U CN 220453855U CN 202322024961 U CN202322024961 U CN 202322024961U CN 220453855 U CN220453855 U CN 220453855U
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- air
- area
- return
- air channel
- heat exchange
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- 238000011144 upstream manufacturing Methods 0.000 claims description 4
- 239000000463 material Substances 0.000 claims description 2
- 238000009434 installation Methods 0.000 description 7
- 239000012530 fluid Substances 0.000 description 4
- 238000011084 recovery Methods 0.000 description 4
- 238000001914 filtration Methods 0.000 description 3
- 238000004378 air conditioning Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
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- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
The utility model relates to a fresh air fan, which comprises a shell, wherein an accommodating cavity is formed in the shell, a fresh air channel and a return air channel are formed in the accommodating cavity, the fresh air channel and the return air channel are separated after being partially intersected, an air inlet communicated with an air inlet end of the fresh air channel and an air supply outlet communicated with an air outlet end of the fresh air channel are formed in the shell, and an air return outlet communicated with an air inlet end of the return air channel and an air outlet communicated with an air outlet end of the return air channel are also formed in the shell; the heat exchange core is arranged at the junction of the fresh air channel and the return air channel; the path length of the fresh air channel is smaller than that of the return air channel, the air channel of the fresh air channel is shorter than that of the return air channel, and the first fan arranged in the fresh air channel is a machine type with low cost, small rotating speed and small power, and can meet the requirements.
Description
Technical Field
The utility model relates to the technical field of air treatment, in particular to a fresh air fan.
Background
The fresh air unit is air conditioning equipment for providing fresh air to the indoor space; the heat recovery type fresh air handling unit is one of a plurality of types of fresh air handling unit, and internally mounted of the heat recovery type fresh air handling unit has the heat exchange core, and then utilizes the return air heat of sucking from indoor to heat and introduce fresh air from outdoor through the heat exchange core, fully retrieves and utilizes the heat of return air, promotes the utilization efficiency of energy.
As disclosed in chinese patent publication No. CN201821772134.5 (bulletin No. CN 208952384U), a support and a heat recovery type fresh air unit using the same, the heat recovery type fresh air unit includes a case and a heat exchange core, the case is divided into a fresh air channel and a return air channel by a partition plate, the heat exchange core is fixedly installed at the junction of the fresh air channel and the return air channel by the support, the support is integrally formed, and the support has a core installation portion, a filter installation portion and a fixed connection portion, wherein the cross section of the filter installation portion is U-shaped, and the filter installation portion is used for inserting and installing the side end of the filter; the section shape of the core body installation part is integrally V-shaped, the inner side surface of the V-shaped section of the core body installation part is provided with a groove for the sealing strip, and the edge of the core body installation part used for heat supply exchange core is inserted and installed.
However, this fresh air fan has the following problems: 1. from fig. 11 of the patent, the flow paths of the fresh air channel and the return air channel are both tortuous, which results in an insufficient smooth airflow flow path, and because the fresh air channel is generally required to have higher air volume than the return air channel, the paths of the fresh air channel and the return air channel are identical, which means that the performance of the fan selected by the fresh air channel needs to be higher under the condition that the wind resistances of the fresh air channel and the return air channel are identical, so as to meet the air volume requirement of the fresh air channel; 2. the width of the two filter mounting portions on the support member is the same, which results in limited filtration levels of the mounted filter screen, and generally, higher filtration levels are lower thickness pleated filter screens, while lower filtration levels tend to provide greater windage than the pleated filter screens.
Disclosure of Invention
Aiming at the current state of the art, the utility model provides a fresh air fan with lower requirements on the performance of a first fan in a fresh air channel.
The technical scheme adopted for solving the technical problems is as follows: a new fan comprises
The device comprises a shell, a heat exchanger and a heat exchanger, wherein a containing cavity is formed in the shell, a fresh air channel and a return air channel are arranged in the containing cavity, the fresh air channel and the return air channel are separated after being partially intersected, an air inlet communicated with an air inlet end of the fresh air channel and an air supply outlet communicated with an air outlet end of the fresh air channel are formed in the shell, and an air return outlet communicated with an air inlet end of the return air channel and an air outlet communicated with an air outlet end of the return air channel are also formed in the shell;
the heat exchange core is arranged at the junction of the fresh air channel and the return air channel;
the first fan is arranged in the fresh air channel and is used for driving air flow entering from the air inlet to the air supply outlet;
the second fan is arranged in the return air channel and is used for driving air flow entering from the return air inlet to the exhaust outlet;
the fresh air channel is characterized in that the path length of the fresh air channel is smaller than that of the return air channel.
In order to improve the flow smoothness of the air flow in the fresh air channel, the path of the fresh air channel is approximately linear along the flow path of the air flow, so that the air flow is smoother.
In the above scheme, the new trend passageway is including being located the heat exchange core both sides respectively and being linked together through the heat exchange core air inlet region and air supply region, the return air passageway is including being located the heat exchange core both sides respectively and being linked together through the heat exchange core return air region and the region of airing exhaust, along the flow direction of air current, the air inlet region is located the regional upper reaches of air supply, the return air region is located the regional upper reaches of airing exhaust, the air intake is linked together with the air inlet region, and the supply-air outlet is linked together with the air supply region, and the return air outlet is linked together with the return air region, and the air outlet is linked together with the region of airing exhaust.
In order to further improve the flow smoothness of the air flow in the fresh air channel, two ends of one side wall of the heat exchange core are respectively connected with two adjacent side walls of the shell through sectional materials, the side wall of the heat exchange core and the two adjacent side walls of the shell jointly enclose an air inlet area, the air inlet is formed in the corresponding side wall of the shell, which encloses the air inlet area, and the air inlet faces the side wall of the heat exchange core. Thus, the air inlet area has a shorter path and a larger air inlet area entering the heat exchange core.
Preferably, the heat exchange core is quadrilateral, and four lateral walls of the heat exchange core correspond to an air inlet area, an air supply area, an air return area and an air exhaust area respectively, and the air inlet area, the air exhaust area, the air supply area and the air return area are arranged adjacently in sequence, and the air inlet area, the air supply area and the air return area are respectively provided with a filter screen opposite to the corresponding lateral walls of the heat exchange core. The structure form ensures that the whole volume of the shell is small and the occupied space is small.
In order to limit the filter screen and the heat exchange core, sections are arranged at the four corners of the heat exchange core, wherein the sections are provided with first positioning grooves for positioning the corresponding corners of the heat exchange core and second positioning grooves for positioning the corresponding filter screen.
Preferably, of the four sections, two second positioning grooves are respectively arranged on the section at the adjacent position of the air return area and the air supply area and the section at the adjacent position of the air inlet area and the air return area and are respectively used for positioning the filter screens at the two adjacent side walls of the heat exchange core. Therefore, the structure is simplified, and the positioning of the heat exchange core and the two filter screens can be realized through one section bar.
Preferably, the filter screens arranged at the air inlet area and the air return area are called first filter screens, the filter screens arranged at the air supply area are called second filter screens, the thickness of the first filter screens is smaller than that of the second filter screens, and the widths of the two second positioning grooves on the section bar arranged at the adjacent positions of the air return area and the air supply area are different. Therefore, the section bar can position filter screens with different thicknesses, and the universality is good.
In order to fix the section bar and the shell, the section bar is connected with the shell through a screw, a screw hole in threaded connection with the screw is formed in the section bar, and the section bar and the shell can be connected together through the screw.
Compared with the prior art, the utility model has the advantages that: the path length of the fresh air channel is smaller than that of the return air channel, so that the air channel of the fresh air channel is shorter than that of the return air channel, the first fan arranged in the fresh air channel is a model with low cost, small rotating speed and small power, and the requirement that the air quantity of the fresh air channel is larger than that of the return air channel can be met.
Drawings
FIG. 1 is a schematic diagram of an embodiment of the present utility model;
FIG. 2 is a schematic view of a part of the structure of FIG. 1;
FIG. 3 is an enlarged view at A of FIG. 2;
FIG. 4 is an enlarged view at B of FIG. 2;
FIG. 5 is an enlarged view at C of FIG. 2;
FIG. 6 is an enlarged view of FIG. 2 at D;
FIG. 7 is a schematic view of the profile of FIG. 3;
FIG. 8 is a schematic view of the profile of FIG. 4;
FIG. 9 is a schematic view of the profile of FIG. 5;
fig. 10 is a schematic structural view of the profile of fig. 6.
Detailed Description
The utility model is described in further detail below with reference to the embodiments of the drawings.
As shown in fig. 1 to 10, the fresh air fan of the present preferred embodiment includes a heat exchange core 1, a housing 2, a first fan 3, a second fan 4, and a profile 5.
As shown in fig. 2, the housing 2 is internally provided with a containing cavity 11 in which the heat exchange core 1 is contained, the containing cavity 11 is provided with a fresh air channel and a return air channel, the fresh air channel comprises an air inlet area 12 and an air supply area 13 which are respectively positioned at two sides of the heat exchange core 1 and are communicated with each other through the heat exchange core 1, the return air channel comprises a return air area 14 and an air exhaust area 15 which are respectively positioned at two sides of the heat exchange core 1 and are communicated with each other through the heat exchange core 1, the air inlet area 12 is positioned at the upstream of the air supply area 13, the return air area 14 is positioned at the upstream of the air exhaust area 15 along the flow direction of air flow, and the housing 2 is provided with an air inlet 16 communicated with the air inlet area 12, an air supply opening 17 communicated with the air supply area 13, a return air opening 18 communicated with the return air area 14 and an air exhaust opening 19 communicated with the air exhaust area 15.
From the above, the fresh air channel and the return air channel are separated after being partially intersected, and the heat exchange core 1 is arranged at the intersection of the fresh air channel and the return air channel.
The first fan 3 is arranged in the air supply area 13 and is used for driving the air flow entering from the air inlet 16 to the air supply outlet 17; the second fan 4 is disposed in the air exhaust area 15, and is used for driving the air flow entering from the air return opening 18 to the air exhaust opening 19. The first fan 3, the second fan 4 and the heat exchange core 1 all adopt the existing structure.
In this embodiment, the heat exchange core 1 is quadrilateral, four side walls of the heat exchange core 1 correspond to the air inlet area 12, the air supply area 13, the air return area 14 and the air exhaust area 15 respectively, the air inlet area 12, the air exhaust area 15, the air supply area 13 and the air return area 14 are sequentially and adjacently arranged, and the air inlet area 12, the air supply area 13 and the air return area 14 are respectively provided with a filter screen opposite to the corresponding side walls of the heat exchange core 1.
As shown in fig. 2 to 6, the sections of the four corners of the heat exchange core 1 are each provided with a profile 5, wherein the profile 5 has a first positioning groove 51 for positioning the corresponding corner of the heat exchange core 1 and a second positioning groove 52 for positioning the corresponding screen. Of the four profiles 5, two profiles 5 disposed at the junction of the return air region 14 and the supply air region 13 and two second positioning grooves 52 disposed on the profiles 5 at the junction of the inlet air region 12 and the return air region 14 are respectively used for positioning the filter screens at the two adjacent side walls of the heat exchange core 1. The structure is simplified, and the positioning of the heat exchange core 1 and the two filter screens can be realized through one section bar 5.
The filter screens arranged at the air inlet area 12 and the air return area 14 are called a first filter screen 61, the filter screen arranged at the air supply area 13 is called a second filter screen 62, the thickness of the first filter screen 61 is smaller than that of the second filter screen 62, for example, the first filter screen 61 is a primary filter screen, the second filter screen 62 is a high-efficiency filter screen, and the widths of two second positioning grooves 52 on the profile 5 arranged at the adjacent position of the air return area 14 and the air supply area 13 are different. Thus, the section bar 5 can position filter screens with different thicknesses, and the universality is good.
The section bar 5 is connected with the shell 2 through a screw, a screw hole 53 which is in threaded connection with the screw is formed in the section bar 5, and the section bar 5 and the shell 2 can be connected together through the screw. In addition, each profile 5 has reinforcing ribs to ensure the strength of the profile.
The following modes can enable the air channel of the fresh air channel to be shorter than the return air channel, so that the first fan 3 arranged in the fresh air channel is a machine type with low cost, small rotating speed and small power, and the requirement that the air quantity of the fresh air channel is larger than that of the return air channel can be met.
In this embodiment, the path length of the fresh air channel is smaller than that of the return air channel, and the path of the fresh air channel is approximately linear along the flow path of the air flow, so that the air flow is smoother.
In addition, two ends of one of the side walls of the heat exchange core 1 are respectively connected with two adjacent side walls of the shell 2 through the section bar 5, the side wall of the heat exchange core 1 and the two adjacent side walls of the shell 2 jointly enclose an air inlet area 12, an air inlet 16 is formed in the corresponding side wall of the shell 2 enclosing the air inlet area 12, and the air inlet 16 faces the side wall of the heat exchange core 1. Thus, the air inlet area 12 has a shorter path and a larger air inlet area into the heat exchange core 1.
In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for purposes of describing the present utility model and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and because the disclosed embodiments of the present utility model may be arranged in different orientations, these directional terms are merely for illustration and should not be construed as limitations, such as "upper", "lower" are not necessarily limited to orientations opposite or coincident with the direction of gravity.
The term "fluid communication" as used herein refers to a spatial positional relationship between two components or parts (hereinafter collectively referred to as a first part and a second part, respectively), that is, a fluid (gas, liquid, or a mixture of both) can flow along a flow path from the first part to the second part or/and be transported to the second part, or the first part and the second part may be directly communicated with each other, or the first part and the second part may be indirectly communicated with each other through at least one third party, and the third party may be a fluid channel such as a pipe, a channel, a conduit, a flow guiding member, a hole, a groove, or the like, or a chamber allowing the fluid to flow through, or a combination thereof.
Claims (9)
1. A new fan comprises
The device comprises a shell (2), wherein an accommodating cavity (11) is formed in the shell, a fresh air channel and a return air channel are formed in the accommodating cavity (11), the fresh air channel and the return air channel are separated after being partially intersected, an air inlet (16) communicated with an air inlet end of the fresh air channel and an air outlet (17) communicated with an air outlet end of the fresh air channel are formed in the shell (2), and an air return inlet (18) communicated with an air inlet end of the return air channel and an air outlet (19) communicated with an air outlet end of the return air channel are also formed in the shell (2);
the heat exchange core (1) is arranged at the junction of the fresh air channel and the return air channel;
the first fan (3) is arranged in the fresh air channel and is used for driving air flow entering from the air inlet (16) to the air supply outlet (17);
the second fan (4) is arranged in the return air channel and is used for driving air flow entering from the return air inlet (18) to the exhaust outlet (19);
the fresh air channel is characterized in that the path length of the fresh air channel is smaller than that of the return air channel.
2. A fresh air machine according to claim 1, wherein: the path of the fresh air channel is approximately linear along the flow path of the air flow.
3. The fresh air fan according to claim 1 or 2, characterized in that: the fresh air channel comprises an air inlet area (12) and an air supply area (13) which are respectively positioned at two sides of the heat exchange core (1) and communicated with each other through the heat exchange core (1), the air return channel comprises an air return area (14) and an air exhaust area (15) which are respectively positioned at two sides of the heat exchange core (1) and communicated with each other through the heat exchange core (1), the air inlet area (12) is positioned at the upstream of the air supply area (13) along the flow direction of air flow, the air return area (14) is positioned at the upstream of the air exhaust area (15), the air inlet (16) is communicated with the air inlet area (12), the air supply opening (17) is communicated with the air supply area (13), the air return opening (18) is communicated with the air return area (14), and the air exhaust opening (19) is communicated with the air exhaust area (15).
4. A fresh air machine according to claim 3, wherein: two ends of one side wall of the heat exchange core (1) are respectively connected with two adjacent side walls of the shell (2) through sectional materials (5), the side wall of the heat exchange core (1) and the two adjacent side walls of the shell (2) jointly enclose an air inlet area (12), an air inlet (16) is formed in the corresponding side wall of the shell (2) enclosing the air inlet area (12), and the air inlet (16) faces the side wall of the heat exchange core (1).
5. A fresh air machine according to claim 3, wherein: the heat exchange core (1) is quadrilateral, four side walls of the heat exchange core (1) respectively correspond to an air inlet area (12), an air supply area (13), an air return area (14) and an air exhaust area (15), the air inlet area (12), the air exhaust area (15), the air supply area (13) and the air return area (14) are sequentially arranged adjacently, and filter screens opposite to the corresponding side walls of the heat exchange core (1) are arranged in the air inlet area (12), the air supply area (13) and the air return area (14).
6. The fresh air machine according to claim 5, wherein: the sections (5) are arranged at the four corners of the heat exchange core (1), wherein the sections (5) are provided with first positioning grooves (51) for positioning the corresponding corners of the heat exchange core (1) and second positioning grooves (52) for positioning the corresponding filter screens.
7. The fresh air machine according to claim 6, wherein: of the four sections (5), two sections (5) arranged at the adjacent positions of the air return area (14) and the air supply area (13) and two second positioning grooves (52) arranged on the sections (5) at the adjacent positions of the air inlet area (12) and the air return area (14) are respectively used for positioning the filter screens at the two adjacent side walls of the heat exchange core (1).
8. The fresh air machine according to claim 7, wherein: wherein the filter screen arranged at the air inlet area (12) and the air return area (14) is called a first filter screen (61), the filter screen arranged at the air supply area (13) is called a second filter screen (62), the thickness of the first filter screen (61) is smaller than that of the second filter screen (62), and correspondingly, the widths of two second positioning grooves (52) arranged on the section bar (5) at the adjacent position of the air return area (14) and the air supply area (13) are different.
9. The fresh air machine according to claim 6, wherein: the section bar (5) is connected with the shell (2) through a screw, and a screw hole (53) in threaded connection with the screw is formed in the section bar (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322024961.3U CN220453855U (en) | 2023-07-31 | 2023-07-31 | New fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322024961.3U CN220453855U (en) | 2023-07-31 | 2023-07-31 | New fan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220453855U true CN220453855U (en) | 2024-02-06 |
Family
ID=89732717
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322024961.3U Active CN220453855U (en) | 2023-07-31 | 2023-07-31 | New fan |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220453855U (en) |
-
2023
- 2023-07-31 CN CN202322024961.3U patent/CN220453855U/en active Active
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