CN209944669U - New fan - Google Patents

Abstract

The utility model discloses a new fan. The method comprises the following steps: the fresh air inlet, the fresh air outlet, the waste gas inlet and the waste gas outlet are arranged on the shell, the exchanger is arranged in the shell, a first exchange channel and a second exchange channel are arranged in the exchanger, the first exchange channel is communicated with the fresh air inlet and the fresh air outlet, the second exchange channel is communicated with the waste gas inlet and the waste gas outlet, and the exchanger extends along the front-back direction; the positioning bracket is connected with the shell, the positioning bracket extends along the front-back direction, and at least one of the left side and the right side of the exchanger is slidably supported on the bracket along the front-back direction. According to the utility model discloses new fan, the interchanger tear open change with fixed convenient, fuselage compact structure, the after-sales maintenance of being convenient for.

Description

New fan

Technical Field

The utility model relates to an air conditioning technology field, in particular to new fan.

Background

New fan among the prior art is mostly wall-hanging or new fan of suspension type at present. In the new fan, the exchanger is fixed complicatedly, and the assembly is difficult, and it is inconvenient to maintain. Moreover, due to the influence of the maintenance space, the single maintenance opening enables workers to have no selectivity and flexibility in later installation and maintenance work. When a plurality of corresponding maintenance ports are respectively arranged aiming at internal elements of the fresh air machine such as the fan, the filter, the exchanger, the electric control box and the like, the complexity of the machine body structure is increased, so that the machine body structure is loose and difficult to realize.

SUMMERY OF THE UTILITY MODEL

In view of the defect or not enough of prior art, the utility model provides a new fan, include: the shell, interchanger and locating support, new trend entry, new trend export, waste gas entry and waste gas export on the shell, the interchanger is located in the shell, first interchange passageway and second interchange passageway have in the interchanger, wherein, first interchange passageway intercommunication the new trend entry with the new trend export, second interchange passageway intercommunication waste gas entry and waste gas export, the interchanger extends along the fore-and-aft direction, the locating support with the shell links to each other, the locating support extends along the fore-and-aft direction, at least one in the left and right sides of interchanger support along fore-and-aft direction slidable in on the support.

According to the utility model discloses new fan, the fixed of interchanger is convenient with tearing open and trade, and fuselage compact structure is convenient for after-sales repair.

In addition, according to the above embodiments of the present invention, the following additional technical features may also be provided:

in some embodiments, the positioning bracket comprises: the heat exchanger comprises a first support sheet and a second support sheet, wherein the first support sheet is supported on the upper surface of the corresponding side end of the heat exchanger, one side of the second support sheet is connected with the first support sheet, and the second support sheet extends in the direction far away from the heat exchanger from the top to the bottom.

In some embodiments, at least one of the left and right sides of the exchanger is provided with an air duct, and the positioning bracket is mounted on the air duct.

In some embodiments, the top shell of the housing has a support rib on an inner surface thereof, the support rib extends in a front-rear direction, and the exchanger is slidably supported on the support rib in the front-rear direction.

In some embodiments, a sealing layer is disposed between the support ribs and the exchanger.

In some embodiments, a bottom plate of the housing is provided with a pressure plate extending in a front-to-rear direction, the pressure plate pressing against a bottom surface of the exchanger.

In some embodiments, a seal is disposed between the platen and the exchanger.

In some embodiments, the front wall of the shell is provided with an access hole which is communicated along the front-back direction, and the access hole is opposite to the exchanger in the front-back direction; or the bottom plate of the shell is provided with an access hole which is communicated along the vertical direction, and the access hole is opposite to the exchanger vertically; or the floor of the housing may be openable.

In some embodiments, the exchanger includes a first surface, a second surface, a third surface, and a fourth surface, the first surface being contiguous with the second surface, the third surface being contiguous with the fourth surface, the first surface being opposite the third surface, and the second surface being opposite the fourth surface, the first crossover passage extending from the first surface to the third surface, the second crossover passage extending from the second surface to the fourth surface.

In some embodiments, the junction of the first surface and the second surface and the junction of the third surface and the fourth surface are both supported by the positioning bracket.

In some embodiments, the exchanger further comprises a top surface connecting the first surface and the fourth surface and a bottom surface connecting the second surface and the third surface, and the exchanger has a hexagonal cylindrical shape.

Drawings

Fig. 1 is a view in one direction of a top cover and a side cover with a housing removed according to an embodiment of the present invention.

Fig. 2 is an enlarged view of region a shown in fig. 1.

Fig. 3 is an enlarged view of region B shown in fig. 1.

Fig. 4 is an enlarged view of region C shown in fig. 1.

FIG. 5 is a front side view of the embodiment shown in FIG. 1.

Fig. 6 is a front view of fig. 1 with a top cover.

Fig. 7 is a left side view in fig. 1.

Fig. 8 is a front view of fig. 1 with the top cover removed.

Fig. 9 is a view of fig. 1 in another orientation.

Fig. 10 is a rear side view of fig. 1.

Fig. 11 is an enlarged view of region D in fig. 10.

Reference numerals:

fresh air machine 100

The novel air conditioner comprises a shell 1, a novel air inlet 11, a novel air outlet 12, a waste gas inlet 13, a waste gas outlet 14, a novel air duct 15, a waste gas air duct 16, an exchanger 2, a first surface 21, a second surface 22, a third surface 23, a fourth surface 24, a top surface 25, a bottom surface 26, a positioning support 3, a first supporting sheet 31, a second supporting sheet 32, a positioning sliding groove 33, a first positioning sliding groove 331, a first sliding groove 3311, a second sliding groove 3312, a second positioning sliding groove 332, a third sliding groove 3321, a fourth sliding groove 3322, a supporting rib 4, a pressing plate 5, an overhaul port 6, a bottom plate 7, a first fan 8, a second fan 9 and a filtering element 10.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention.

As shown in fig. 1, 8 and 9, in an embodiment of the present invention, a new fan 100 includes: shell 1, interchanger 2 and locating support 3, new trend entry 11 on the shell 1, the new trend export, waste gas entry 13 and waste gas export 14, interchanger 2 is located in the shell 1, first interchange passageway and second interchange passageway have in the interchanger 2, wherein, first interchange passageway intercommunication new trend entry 11 and new trend export, second interchange passageway intercommunication waste gas entry 13 and waste gas export 14, interchanger 2 extends along the fore-and-aft direction, locating support 3 links to each other with shell 1, locating support 3 extends along the fore-and-aft direction, support on the support along fore-and-aft direction slidable in at least one in the left and right sides of interchanger 2.

According to the utility model discloses new fan 100 fixes a position interchanger 2 through locating support 3, need not use the fastener to make it fixed with 1 panel beating of shell to interchanger 2's locate mode and new fan 100 internal component's the mode of arranging make the fuselage structure compacter, and be convenient for the maintenance work after sale more convenient develop.

The exchanger 2 is arranged in the shell 1, a first exchange channel and a second exchange channel are arranged in the exchanger 2, wherein the first exchange channel is communicated with the fresh air inlet 11 and the fresh air outlet, the second exchange channel is communicated with the waste gas inlet 13 and the waste gas outlet 14, the first exchange channel and the second exchange channel in the exchanger 2 are arranged in a crossed mode, and an airflow path between the fresh air inlet 11 and the fresh air outlet and an airflow path between the waste gas inlet 13 and the waste gas outlet 14 are crossed at the exchanger 2.

More specifically, firstly, outdoor fresh air and indoor waste gas enter the fresh air blower 100 from the fresh air inlet 11 and the waste gas inlet 13 respectively, then two airflows of the outdoor fresh air and the indoor waste gas are in cross contact in the exchanger 2 to carry out damp-heat exchange, and finally the two airflows are blown to the indoor and the outdoor through the fresh air outlet and the waste gas outlet 14 respectively, so that the process of once fresh air intake and waste gas exhaust is completed.

And, in the utility model discloses in new fan 100, on interchanger 2 assembles to locating support 3, locating support 3 formed on new fan 100's shell 1, specific mode has a lot of, and locating support 3 can be integrated into one piece's sheet metal construction with new fan 100's shell 1, also can be through fastener fastening connection, also can be the buckle connection or weld together, etc. Here, the positioning bracket 3 is used for positioning and limiting the exchanger 2 in the up-down, left-right directions, so that the exchanger can be positioned in the new fan 100 and is also beneficial to installation and maintenance.

As shown in fig. 2 and 11, the positioning bracket 3 includes: a first support piece 31 and a second support piece 32, the first support piece 31 is supported on the upper surface of the corresponding side end of the exchanger 2, one side of the second support piece 32 is connected to the first support piece 31, and the second support piece 32 extends in a direction away from the exchanger 2 from the top to the bottom.

In other words, the first supporting sheet and the second supporting sheet form an open V shape, the included angle between the first supporting sheet and the second supporting sheet is preferably larger than the included angle between the two end surfaces of the corresponding positioning bracket 3 of the exchanger 2, and the first supporting sheet is tightly attached to and supports the exchanger 2, so that when the left and right ends of the exchanger 2 are embedded into the V-shaped positioning brackets 3 at the left and right ends of the exchanger 2, the second supporting sheet extending downwards is positioned in contact with the exchanger 2, and the included angle is larger, so that the exchanger 2 can be taken out downwards from the service opening 6. This allows to leave an option for after-market maintenance or installation, also for the purpose of facilitating maintenance and installation, while positioning the exchangers 2.

In general, the exchanger 2 is generally in the shape of a tetrahedron or a hexahedron, and in the case of the exchanger 2 shown in fig. 9 in the shape of a hexahedron, the left and right side edges thereof are supported between the first support sheet 31 and the second support sheet 32, and for convenience of after-market maintenance and service, in the case of the ceiling type fresh air fan 100, when a downward maintenance opening is provided, the exchanger 2 can be easily taken out by opening the maintenance opening, so that the second support sheet is provided to extend in a direction away from the exchanger 2, and thus, when the exchanger 2 is taken out by applying a downward external force, the second support sheet 32 may not block the removal of the exchanger 2. The primary purpose of this is for the convenience of the new wind turbine 100 in maintenance and installation.

As shown in fig. 9 and 10, the filter element 10 extending in the front-rear direction is provided at least one of the left and right sides of the exchanger 2, the positioning bracket 3 is provided with a positioning slide groove 33 extending in the front-rear direction, and a part of the filter element 10 is fitted into the positioning slide groove 33.

In order to make the outdoor fresh air and the indoor waste gas entering the exchanger 2 undergo primary filtration and ensure that the outdoor fresh air entering the exchanger 2 does not have large-particle impurities to affect the heat exchange effect, at least one of the left and right sides of the exchanger 2 is provided with a filter element 10 extending along the front-back direction, as shown in fig. 9, the airflow passages of the outdoor fresh air and the indoor waste gas extend along the left-right direction, and the flow directions of the two airflows are opposite, the two airflows are distributed on the left and right sides of the exchanger 2 before entering the exchanger 2 respectively, and at this time, the filter elements 10 need to be arranged on the left and right sides of the exchanger 2 to filter the outdoor fresh air and the indoor waste gas respectively, so that the heat exchange effect is.

Of course, in order to save costs and simplify the structure, the filtering element 10 can be provided on one side of the exchanger 2 only. For example, if the outdoor environment where the ventilator 100 is located is of good quality, the filter element 10 along the intake direction of the fresh air can be removed because of the low impurity content of large particles in the fresh air, so that the filter element 10 is installed only on the indoor exhaust side. Or, if the indoor waste gas is mostly harmful gas such as carbon dioxide and the like, and has no large particle impurities, and when the large particle impurities in the outdoor air are more, the filter element 10 in the air inlet direction of the indoor waste gas can be cancelled.

And, at least one side in the left and right sides of interchanger 2 is equipped with the wind channel, and locating support 3 installs on the wind channel. In the embodiment shown in fig. 10, air ducts are disposed on both left and right sides of the exchanger 2, which may be referred to as a first air duct and a second air duct, where the first air duct is an air flow passage for outdoor fresh air to enter the exchanger 2 from the fresh air inlet 11 of the housing 1, and is usually made of metal, plastic, or foam, and is preferably made of foam in some embodiments. Because the foam has thermal-insulated heat preservation's performance, so use the wind channel of foam material, the emergence of this phenomenon of prevention that can be fine to foam material cost low in cost, the quality is little, uses the wind channel of foam material can save the cost, reduces complete machine quality, does benefit to the installation.

As fig. 10, be provided with first wind channel and second wind channel in the left and right sides of interchanger 2, specifically arrive the utility model discloses an in the embodiment, also can be called as new wind channel 15 and waste gas wind channel 16 to install locating support 3 on new wind channel 15 and waste gas wind channel 16, specific installation form is not injectd between locating support 3 and the wind channel, but locating support 3 installs and does benefit to on the wind channel and makes fuselage compact structure, saves fuselage space.

In addition, in some embodiments, a fresh air duct 15 is disposed on one side of the exchanger 2, for example, the exhaust air duct 16 on the other side is formed by the outer wall of the fresh air duct 15 and the outer shell 1 of the fresh air blower 100, and then the positioning bracket 3 is disposed on one side of the fresh air duct 15 of the exchanger 2. For another example, the exhaust air duct 16 is disposed at the indoor exhaust side, and the outdoor fresh air flow passes between the outer side of the exhaust air duct 16 and the housing 1, so that the positioning bracket 3 can be disposed at one side of the exhaust air duct 16 of the exchanger 2, which also saves the space of the machine body and increases the compactness of the machine body structure.

As shown in fig. 10, the inner surface of the top case of the housing 1 is provided with support ribs 4, the support ribs 4 extend in the front-rear direction, and the exchanger 2 is slidably supported on the support ribs 4 in the front-rear direction. And the surface of the raised portion of the support rib 4 is a plane which cooperates with the top surface 25 of the exchanger 2, facilitating the pressing of the exchanger 2 during installation, and allowing the extraction of the exchanger 2 during maintenance at the side opening of the casing 1.

Furthermore, to prevent air leakage, a sealing layer is provided between the support ribs 4 and the exchanger 2. Specifically, the sealing layer is arranged in the gap between the support ribs 4 and the exchanger 2, and specifically, the sealing layer may be a sealing rubber ring or a sealing rubber strip, etc., without limitation, for the purpose of enhancing the sealing.

As shown in fig. 8 to 10, the bottom plate 7 of the housing 1 is provided with a pressing plate 5 extending in the front-rear direction, the pressing plate 5 pressing against the bottom surface 26 of the exchanger 2. The surface of the pressure plate 5 in contact with the exchanger 2 is flat, and after the assembly of the finished product, the pressure plate 5 is pressed against the top surface 25 of the exchanger 2 and fixed, and the exchanger 2 can be pulled out by force when the maintenance is carried out at the side maintenance opening of the body shell 1.

Meanwhile, in order to prevent air leakage, a seal layer is provided between the pressure plate 5 and the exchanger 2. Also, the specific sealing form is not limited, but mainly a sealing layer is provided at the gap where the platen 5 and the exchanger 2 are in contact to enhance the sealing.

In order to facilitate the replacement and maintenance, an access opening 6 is arranged on the shell 1 of the fresh air fan 100. Since the commercial fresh air machine 100 is generally a wall-mounted or ceiling-mounted fresh air machine 100, the access opening 6 is generally disposed at the bottom or side of the fresh air machine 100, and the access opening 6 may be disposed in one or more.

As shown in figures 5 and 6, the front wall of the shell 1 is provided with an access hole 6 which is through along the front-back direction, and the access hole 6 is right opposite to the exchanger 2 in the front-back direction, so that the access of workers from the side surface can be facilitated. The access opening 6 is configured in a shape suitable for extracting and placing the exchanger 2. The access opening 6 is designed on the side of the shell 1 of the fresh air fan 100, opposite to the exchanger 2, when the exchanger 2 is usually replaced or repaired, the exchanger 2 needs to be drawn out from the access opening 6, so the size of the access opening 6 should not be smaller than the cross-sectional area of the exchanger 2 in the left-right direction, in addition, the shape of the access opening should not block the drawing of the exchanger 2, and when a new or repaired exchanger 2 needs to be installed, the shape of the access opening 6 should not block the placement of the exchanger 2, in the general case, as shown in fig. 6, the access opening 6 is designed to be square, and of course, the access opening can be designed to be in other forms according to the actual situation.

In other embodiments, the bottom plate 7 of the casing 1 is provided with an access opening 6 which is through in the vertical direction, and the access opening 6 is opposite to the exchanger 2 in the vertical direction, so that the access is performed from the bottom of the fresh air machine 100.

Still alternatively, the bottom plate 7 of the housing 1 may be opened. The bottom plate 7 of the housing 1 is detachably connected with the housing 1, for example, by screws or bolts, and when the maintenance work is required, the bottom plate 7 can be directly removed. Typically, the access opening 6 is sized and dimensioned to accommodate the components to be serviced, primarily for ease of installation and maintenance.

The access opening 6 allows access to other structures than the exchanger 2, such as filters, electrical control boxes, a first fan 8 and a second fan 9, etc., as shown in fig. 9 and 10, a filter element 10 is provided between the exchanger 2 and the fresh air inlet 11, the filter element 10 being adapted to be drawn in and out of the access opening 6. Between the exchanger 2 and the exhaust gas inlet 13 there is a filter element 10, the filter element 10 being adapted to be extracted from and placed in the access opening 6.

For example, as shown in fig. 1 and 3, fig. 4, a first positioning chute 331 is disposed between the exchanger 2 and the fresh air inlet 11, the filter element 10 is slidably engaged with the first positioning chute 331 along the front-back direction, the first positioning chute 331 includes a first chute 3311 and a second chute 3312, the first chute 3311 and the second chute 3312 both extend along the front-back direction, and two side edges of the filter element 10 are slidably inserted into the first chute 3311 and the second chute 3312, respectively.

Specifically, a fresh air duct 15 is disposed between the exchanger 2 and the fresh air inlet 11, a first positioning chute 331 is disposed at an outlet of the fresh air duct 15, and upper and lower ends of the filter element 10 are respectively embedded into the first chute 3311 and the second chute 3312 of the first positioning chute 331, and can slide along an extending direction of the chutes, and can be extracted from the access opening 6 during after-sale maintenance or cleaning.

In addition, as shown in fig. 1, 3 and 4, a support extending in the front-rear direction is disposed on the top wall of the outlet of the fresh air duct 15, the first sliding groove 3311 is disposed on the support, the second sliding groove 3312 is formed on the inner surface of the bottom wall of the outlet of the fresh air duct 15, the first sliding groove 3311 and the second sliding groove 3312 both extend in the front-rear direction, and the first sliding groove 3311 and the second sliding groove 3312 provide positioning and supporting for the filter element 10.

As shown in fig. 1 and 2, a second positioning chute 332 is provided between the exchanger 2 and the exhaust gas inlet 13, the filter element 10 is slidably engaged with the second positioning chute 332 in the front-rear direction, the second positioning chute 332 includes a third chute 3321 and a fourth chute 3322, the third chute 3321 and the fourth chute 3322 extend in the front-rear direction, and both side edges of the filter element 10 are slidably inserted into the third chute 3321 and the fourth chute 3322, respectively.

The second positioning chute 332 is disposed on the exhaust air duct 16 between the exchanger 2 and the exhaust air inlet 13, specifically at the outlet of the exhaust air duct 16, and the upper and lower ends of the filter element 10 are respectively inserted into the third chute 3321 and the fourth chute 3322 of the second positioning chute 332 and can slide along the extending direction of the third chute 3321 and the fourth chute 3322, so that the filter element can be extracted from the service opening 6 during after-sales maintenance or cleaning installation.

In addition, as shown in fig. 1 and 2, a third chute 3321 is formed on the inner surface of the ceiling at the outlet of the exhaust air duct 16, and a fourth chute 3322 is formed on the inner surface of the bottom at the outlet of the exhaust air duct 16. The third and fourth sliding grooves 3321 and 3322 mainly support and position the filter element 10.

Like fig. 1 and 5, fig. 8 and 9, for convenient maintenance, first fan 8, second fan 9 and access hole 6 all locate same one side in the shell 1, and for the rational utilization shell 1 inner space, the rational arrangement wind channel reduces the fuselage size, distribute first fan 8 and second fan 9 in the relative both sides of interchanger 2, like this, interchanger 2 both sides fan not only can constitute the double suction formula structure, thereby reduce the built-in resistance, satisfy the operating mode of high static pressure outside the machine, can also prevent influences such as streaming of resonance and new trend waste gas each other.

As shown in fig. 9, the exchanger 2 comprises a first surface 21, a second surface 22, a third surface 23 and a fourth surface 24, the first surface 21 being connected to the second surface 22, the third surface 23 being connected to the fourth surface 24, the first surface 21 being opposite to the third surface 23 and the second surface 22 being opposite to the fourth surface 24, the first exchange channels extending from the first surface 21 to the third surface 23 and the second exchange channels extending from the second surface 22 to the fourth surface 24. According to the stacking direction of the heat exchange layers inside the exchanger 2, in general, opposite surfaces of the exchanger 2 are in flow passage communication, for example, outdoor fresh air enters from the fresh air inlet 11, flows through the fresh air duct 15 under the driving of the first fan 8, flows through the first surface 21 of the exchanger 2, flows out from the third surface 23 of the exchanger 2, and is finally blown out from the fresh air outlet under the driving of the first fan 8. Meanwhile, indoor waste gas enters from the waste gas inlet 13, flows through the waste gas duct 16 under the driving of the second fan 9, then flows through the second surface 22 of the exchanger 2, then flows out through the fourth surface 24 of the exchanger 2, and finally is blown out of the room from the waste gas outlet 14 under the driving of the second fan 9.

As shown in fig. 9, the junction of the first surface 21 and the second surface 22 and the junction of the third surface 23 and the fourth surface 24 are supported by the positioning bracket 3. The junction of the first surface 21 and the second surface 22 constitutes one edge, the junction of the third surface 23 and the fourth surface 24 constitutes the other edge, both edges are supported on the positioning brackets 3 on the left and right sides, completing the left and right positioning of the exchanger 2.

As shown in fig. 9, the exchanger 2 further comprises a top surface 25 and a bottom surface 26, the top surface 25 connecting the first surface 21 and the fourth surface 24, the bottom surface 26 connecting the second surface 22 and the third surface 23, and the exchanger 2 has a hexagonal cylindrical shape.

More specifically, for example, the first surface 21 and the third surface 23 through which the fresh outdoor air flows and the airflow channels between the exchangers 2 form a first exchange channel, and the second surface 22 and the fourth surface 24 through which the indoor waste air flows and the airflow channels between the exchangers 2 form a second exchange channel, wherein the first exchange channel and the second exchange channel are stacked and crossed to facilitate heat and moisture exchange between the fresh outdoor air and the indoor waste air, thereby recovering energy and reducing air conditioning load.

In a word, the utility model discloses a new fan 100 is owing to adopted above preferred structure for the dismantlement of interchanger 2 is traded and is fixed convenient, and fuselage compact structure is convenient for after-sales repair.

In the description of the present invention, it is to 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", and the like, indicate the orientation or positional relationship indicated based on the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the present application, unless expressly stated or limited otherwise, the first feature may be directly on or directly under the second feature or indirectly via intermediate members. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.

Although embodiments of the present invention have been shown and described, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art without departing from the scope of the present invention.

Claims (11)

1. A new fan, comprising:

the fresh air inlet, the fresh air outlet, the waste gas inlet and the waste gas outlet are formed in the shell;

the exchanger is arranged in the shell and is internally provided with a first exchange channel and a second exchange channel, wherein the first exchange channel is communicated with the fresh air inlet and the fresh air outlet, the second exchange channel is communicated with the waste gas inlet and the waste gas outlet, and the exchanger extends along the front-back direction;

the positioning support is connected with the shell, the positioning support extends along the front-back direction, and at least one of the left side and the right side of the exchanger is slidably supported on the support along the front-back direction.

2. The new fan of claim 1, wherein the positioning bracket comprises:

the first supporting sheet is supported on the upper surface of the corresponding side end of the exchanger;

and a second support sheet, one side of which is connected to the first support sheet, and which extends in a direction away from the exchanger in an up-down direction.

3. The new fan of claim 1, wherein at least one of the left and right sides of the exchanger is provided with an air duct, and the positioning bracket is mounted on the air duct.

4. The new fan as claimed in claim 1, wherein the top shell of the housing is provided on an inner surface thereof with support ribs extending in the front-rear direction, and the exchanger is slidably supported on the support ribs in the front-rear direction.

5. The fresh air machine of claim 4 wherein a seal is disposed between said support ribs and said exchanger.

6. The new fan as claimed in claim 1, wherein a pressure plate extending in the front-rear direction is provided on the bottom plate of the housing, and the pressure plate presses on the bottom surface of the exchanger.

7. The new fan of claim 6, wherein a seal layer is disposed between the pressure plate and the exchanger.

8. The new fan in accordance with any one of claims 1-7,

the front wall of the shell is provided with an access hole which is communicated along the front-back direction, and the access hole is opposite to the exchanger in the front-back direction; or

The bottom plate of the shell is provided with an access hole which is communicated along the vertical direction, and the access hole is opposite to the exchanger vertically; or

The bottom plate of the housing is openable.

9. The new fan of claim 1 wherein the exchanger includes a first surface, a second surface, a third surface, and a fourth surface, the first surface being contiguous with the second surface, the third surface being contiguous with the fourth surface, the first surface being opposite the third surface and the second surface being opposite the fourth surface, the first exchange channel extending from the first surface to the third surface, the second exchange channel extending from the second surface to the fourth surface.

10. The new fan of claim 9 wherein the junction of the first surface and the second surface and the junction of the third surface and the fourth surface are supported by the positioning bracket.

11. The new fan of claim 9, wherein the exchanger further comprises a top surface and a bottom surface, the top surface connecting the first surface and the fourth surface, the bottom surface connecting the second surface and the third surface, and the exchanger is in a hexagonal column shape.

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