CN211953166U - Total heat fresh air blower and its skeleton - Google Patents

Abstract

The utility model relates to a new fan technical field of total heat, it is bulky to solve current new fan of total heat, high in production cost, one of the problem that the skeleton texture is complicated, a new fan of total heat and skeleton is provided for this reason, the skeleton includes skeleton main part and a plurality of roof, skeleton main part and a plurality of roof enclose jointly and establish to be formed with the new trend cavity, return air cavity and total heat transfer core installation cavity, the new trend cavity is including the new trend air inlet chamber and the new trend air-out chamber that are located total heat transfer core installation cavity both sides, the return air cavity is including the return air inlet chamber and the return air outlet chamber that are located total heat transfer core installation cavity both sides, the part district section of new trend air-out chamber sets to upper and lower floor's structure with the part district section of return air inlet chamber and forms double-layer wind channel, still be formed with the bypass wind channel in the skeleton main part, the bypass wind channel. The utility model provides a skeleton is favorable to realizing the miniaturization and the design of flattening of full hot new fan, simple structure and with low costs.

Description

Total heat fresh air blower and its skeleton

technical field

The utility model relates to the technical field of an all-heat fresh air blower, in particular to an all-heat fresh air blower and a skeleton thereof.

Background technique

The fresh air fan is an effective air purification equipment, which can not only discharge the indoor dirty air to the outdoor, but also introduce the outdoor fresh air into the room after filtering, sterilizing and other measures, so as to keep the indoor air fresh and clean.

Taking the total heat fresh air fan as an example, it is provided with an air duct that can realize the heat exchange between the fresh air and the return air, and can recycle the heat energy. Although the existing total heat fresh air blower can reduce the cost of fresh air by recovering heat energy, the existing total heat fresh air blower generally has the problems of bulky volume, high production cost and complex skeleton structure.

Accordingly, there is a need in the art for a new total heat fresh air blower and its skeleton to solve the above problems.

Utility model content

In order to solve the above-mentioned problems in the prior art, that is, at least to solve one of the problems of the existing full-heat fresh air blower being bulky, high in production cost, and complicated in skeleton structure, the first aspect of the present invention provides a full-heat new fan. The skeleton of the fan, the skeleton includes a skeleton main body and a plurality of top plates, and the skeleton main body and the plurality of top plates jointly form a fresh air chamber, a return air chamber and a total heat exchange core installation chamber, the The fresh air chamber includes a fresh air inlet chamber and a fresh air outlet chamber respectively located on both sides of the full heat heat exchange core installation chamber, and the return air chamber includes a fresh air inlet chamber respectively located on both sides of the full heat heat exchange core installation chamber. The return air inlet cavity and the return air outlet cavity are arranged in the upper and lower layers of the fresh air outlet cavity and the return air inlet cavity to form a double-layer air duct, and the skeleton The main body is also formed with a bypass air passage located at the periphery of the total heat heat exchange core installation chamber, and the bypass air passage can communicate with the return air inlet chamber and the return air outlet chamber.

In the preferred technical solution of the skeleton of the above-mentioned full-heat fresh air blower, the skeleton body includes a base plate, a surrounding wall and a plurality of partitions, and the partitions include a first vertical partition, a second vertical partition and a lateral partition The first vertical partition is connected to the base plate, the surrounding wall and the horizontal partition, and the second vertical partition is connected to the first vertical partition and the horizontal partition. connected with the surrounding wall, the second vertical partition is connected to the upper surface of the horizontal partition, the connected base plate, the surrounding wall, the first vertical partition, the The two vertical partitions and the transverse partitions jointly construct the fresh air outlet cavity, the return air inlet cavity and the double-layered air duct adjacent to each other.

In the preferred technical solution of the skeleton of the above-mentioned full-heat fresh air blower, the first vertical partition plate includes a first arc-shaped section, and the first arc-shaped section is formed between the fresh air outlet cavity and the return air cavity. The air enters the common side wall of the air cavity.

In the preferred technical solution of the skeleton of the above-mentioned full-heat fresh air blower, the double-layer air duct includes a lower-layer air duct, and the lower-layer air duct constitutes a part of the return air inlet cavity, and the outlet of the lower-layer air duct The tuyere is arranged obliquely with respect to the vertical plane.

In the preferred technical solution of the skeleton of the above-mentioned full-heat fresh air blower, a first air door installation opening is formed on the second vertical partition plate, and the first air door installation opening is used for installing the first air door so as to be turned on or off. For the connection between the fresh air outlet cavity and the return air inlet cavity, the two side edges of the first air door installation opening are arranged in a circular arc structure.

In the preferred technical solution of the skeleton of the above-mentioned full-heat fresh air blower, the baffle plate further includes a third vertical baffle plate and an inclined baffle plate, and the third vertical baffle plate is connected with the base plate and the surrounding wall to The common side wall of the fresh air inlet cavity and the return air outlet cavity is constructed, the inclined partition is connected with the surrounding wall and the third vertical partition and thus constitutes all adjacent to each other. The fresh air inlet cavity and the return air outlet cavity.

In the above preferred technical solution of the skeleton of the full-heat fresh air blower, the skeleton body further includes a fourth vertical partition plate, the plurality of top plates include a first top plate, the surrounding wall includes a first surrounding wall, and the first Four vertical partitions are connected with the base plate, the first vertical partition and the third vertical partition and are arranged in parallel with the first surrounding wall, and thus the bypass passage is constructed, so The base plate, the first surrounding wall, the fourth vertical partition plate and the first top plate are jointly enclosed to form the total heat exchange core installation chamber.

In the preferred technical solution of the skeleton of the above-mentioned full-heat fresh air blower, the fourth vertical partition plate is provided with a second air door installation opening for installing the second air door, and the second air door installation opening makes the bypass duct communicated with the return air inlet cavity.

In the preferred technical solution of the skeleton of the above-mentioned full-heat fresh air blower, the skeleton body is integrally formed; and/or

The plurality of top boards further include a second top board, the second top board is mounted on the top of the fresh air inlet cavity, and the material of the first top board and/or the second top board is a foam board.

A second aspect of the present invention also provides a full-heat fresh air blower, which includes the skeleton described in any of the foregoing technical solutions.

The skeleton of the full-heat fresh air blower provided by the utility model can easily construct a chamber for fresh air circulation and a chamber for return air circulation by decomposing the skeleton into a structure in which the skeleton main body and a plurality of top plates are connected, and the skeleton is reduced. It is difficult to assemble and simplifies the installation process of the skeleton; in addition, the part of the fresh air outlet cavity and the return air inlet cavity located on one side of the full heat heat exchange core installation cavity is arranged as an upper and lower structure to form a double layer An air duct is used to facilitate the realization of the return air mode, and a bypass air duct connecting the return air inlet cavity and the return air outlet cavity is arranged around the installation chamber of the full heat heat exchange core, so as to facilitate the realization of the bypass mode, which can not only The working mode of the full-heat fresh air fan is increased to realize the mutual switching of various working modes, and the internal space of the fresh air fan is fully utilized and a streamlined air duct is constructed, thereby reducing the wind resistance in the process of fresh air and return air transportation. The longitudinal width of the skeleton main body is reduced, which is beneficial to realize the miniaturization and flat design of the full-heat fresh air blower, and the simple skeleton structure can reduce the production cost.

Further, by using vertical partitions and horizontal partitions to construct the fresh air outlet cavity, the return air inlet cavity and the double-layered air duct formed by stacking the two, it not only makes full use of the internal space of the fresh air fan, but also makes it simple and easy to use. The streamlined air duct is constructed by the method, which simplifies the installation process of the skeleton.

Further, by setting the common side wall of the fresh air outlet cavity and the return air inlet cavity into an arc structure, the air ducts for conveying the fresh air and the return air can be streamlined, and the air ducts of the streamlined structure are more in line with the flow law of the air flow field. , which is conducive to reducing airflow resistance, realizing large air volume transportation and silent transportation, and improving the air supply efficiency of full-heat fresh air fans.

Further, by slanting the air outlet of the lower air duct relative to the vertical plane, the air outlet area of the air duct can be increased, and large air volume can be conveyed, thereby improving the air supply efficiency of the fresh fan.

Further, by setting the two side edges of the first air door installation opening into circular arc structures, the side walls for constructing the fresh air outlet cavity are arc shaped, so that the constructed fresh air duct has a streamlined structure.

Further, by using the vertical clapboard and the inclined clapboard to construct the fresh air inlet cavity and the return air outlet cavity, the adjacent arrangement of the fresh air inlet cavity and the return air outlet cavity is realized in the horizontal plane. It is realized that the air outlet of the fresh air inlet cavity and the air inlet of the return air outlet cavity are in an up-down position, and a cross-mesh, streamlined fresh air duct and return air duct are constructed in the three-dimensional space. It is beneficial to the miniaturization of the new fan and the streamlined design of the air duct.

Further, the installation chamber of the total heat exchange core is constructed by means of the connection between the top plate and the frame body, which facilitates the disassembly and assembly of the total heat heat exchange core and simplifies the installation process of the frame; The partition plate is used to construct the bypass duct and the bypass duct is formed on the periphery of the installation chamber of the full-heat heat exchange core, which can not only increase the working mode of the full-heat fresh air fan, but also facilitate the miniaturized design of the full-heat fresh air fan.

Further, by arranging a second air door installation port for installing the second air door on the fourth vertical partition plate, and by means of the second air door, the communication between the bypass air passage and the return air inlet cavity can be turned on or off, so that it can be realized. The rapid switching of the air duct, thereby realizing the rapid switching of the working mode of the full-heat fresh air fan.

Further, the skeleton body is integrally formed and connected with the top plate to form a skeleton, which can simplify the installation process of the skeleton; the use of foam materials to manufacture the first top plate and the second top plate not only realizes the lightweight design of the skeleton, but also reduces the operation of the new fan. The vibration during the process reduces the noise generated during the operation, so as to realize the silent operation of the new fan.

The full-heat fresh air blower provided by another aspect of the present invention has all the technical effects of the aforementioned skeleton because it is configured with the aforementioned skeleton, which will not be repeated here.

Description of drawings

Below with reference to the accompanying drawings, describe the total heat fresh air blower of the present utility model and its skeleton structure, among the accompanying drawings:

Fig. 1 is the structural representation of the total heat fresh air blower of the present utility model;

Fig. 2 is the internal structure schematic diagram of the total heat fresh air blower of the present utility model;

Fig. 3 is the structural representation of the skeleton of the present invention;

Fig. 4 is A-A sectional schematic diagram in Fig. 3;

Fig. 5 is the structural representation of the skeleton main body of the present invention;

FIG. 6 is a schematic cross-sectional view along the direction B-B in FIG. 5;

List of reference numbers:

1. Full heat fresh air blower; 11. Top cover; 12. Frame; 120. Frame body; 1201, base plate; 1202, first enclosure; 1203, second enclosure; 12031, fresh air inlet; 12032, return air outlet; 12033, return air inlet; 12034, fresh air outlet; 1204, first vertical partition; 12041, first arc section; 1205, second vertical partition; 12051, first air door installation opening; 12052, second Arc section; 1206, horizontal partition; 1207, third vertical partition; 1208, inclined partition; 1209, fourth vertical partition; 12091, second damper installation opening; 121, outdoor air inlet; 122 , outdoor air outlet; 123, indoor air inlet; 124, indoor air outlet; 125, first top plate; 126, second top plate; 13, bottom plate; 14, purification module; 141, first filter screen; 142, second filter Net; 143, the third filter; 144, the formaldehyde removal module; 145, the fourth filter; 15, the heat exchange core; 16, the fan; 161, the first fan; 162, the second fan; 17, the first throttle.

Detailed ways

The preferred embodiments of the present invention are described below with reference to the accompanying drawings. It should be understood by those skilled in the art that these embodiments are only used to explain the technical principles of the present invention, and are not intended to limit the protection scope of the present invention.

In addition, in order to better illustrate the present invention, numerous specific details are given in the following detailed description. It should be understood by those skilled in the art that the present invention may be practiced without certain specific details. In some instances, the heat exchange principle of the total heat heat exchange core and the structure of the total heat heat exchange core well known to those skilled in the art are not described in detail, so as to highlight the gist of the present invention.

It should be noted that in the description of the present invention, the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner" and "outer" Terms such as the directions or positional relationships indicated are based on the directions or positional relationships shown in the drawings, which are for ease of description only, and do not indicate or imply that the device or element must have a particular orientation, be configured in a particular orientation, and operation, so it cannot be construed as a limitation to the present invention. Furthermore, the terms "first," "second," "third," and "fourth" are used for descriptive purposes only and should not be construed to indicate or imply relative importance.

In addition, it should also be noted that, in the description of the present invention, unless otherwise expressly specified and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense, for example, it may be a fixed connection, or It can be a detachable connection or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the internal communication between the two components. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

Based on the problems of the existing full-heat fresh air blower pointed out by the background technology, such as bulky volume, high production cost and complex skeleton structure, the present utility model provides a full-heat fresh air blower and its skeleton. Form a streamlined air duct, realize the miniaturization and lightweight design of the fresh air fan, reduce its production cost, and increase the working mode of the full heat fresh air fan to improve its fresh air efficiency.

Fig. 1 is the structural representation of the total heat fresh air blower of the present utility model; Fig. 2 is the internal structure schematic diagram of the total heat fresh air blower of the present utility model; Fig. 3 is the structural representation of the skeleton of the present utility model; Fig. 4 is A-A in Fig. 3 Figure 5 is a schematic diagram of the structure of the main body of the skeleton of the present invention; Figure 6 is a schematic diagram of a cross-section in the direction B-B in Figure 5 . The full-heat fresh air blower and its skeleton in the present utility model will be described in detail below with reference to FIGS. 1-6 .

1 and 2, the total heat fresh air blower 1 provided by the present invention includes a basic structure formed by connecting a top cover 11, a frame 12 and a bottom plate 13, the top cover 11 is connected to the top surface of the frame 12, and the bottom plate 13 is connected to the frame. The bottom surface of 12 and the bottom plate 13 are provided with bolt seat holes to facilitate the installation of the fresh fan. During installation, the bottom plate 13 of the fresh fan faces the surface to be installed, such as the top wall or side wall of the room. A fresh air duct and a return air duct are formed inside the full-heat fresh air blower 1, and a fan 16, a full-heat heat exchange core 15, a purification module 14, and the like are arranged. The fresh air duct is connected to the outdoor air inlet 121 and the indoor air outlet 124 for sending outdoor fresh air into the room; the return air duct is connected to the indoor air inlet 123 and the outdoor air outlet 122 to discharge the indoor return air to the outdoors. The fan 16 is used to drive the air circulation in the air duct to form an airflow. Referring to FIG. 2 , the fan 16 in this embodiment includes a first fan 161 and a second fan 162. The first fan 161 is arranged at the outdoor air outlet 122 to drive the return air. The airflow in the duct is circulated, the second fan 162 is arranged at the indoor air outlet 124 to drive the airflow in the fresh air duct, and the rotational speeds of the first fan 161 and the second fan 162 are adjustable.

The total heat heat exchange core 15 is used to realize the heat exchange between the fresh air and the return air. There are many structures of the total heat heat exchange core 15, the most commonly used are cross-flow and cross-counter-flow forms, in addition, the required channel form can be constructed by the combination of multiple heat exchange cores. Since the structure and working principle of the total heat exchange core 15 are already relatively mature prior art, the internal structure and working principle of the total heat heat exchange core 15 are not described in detail in this embodiment. The total heat exchange core 15 used in this embodiment is a cross-counter-flow total-heat heat-exchange core 15 . Referring to FIG. 1 , the cross-counter-flow total-heat heat exchange core 15 has a regular hexagonal cross-section and is installed on the skeleton 12 The formed total heat exchange core is installed inside the chamber. A fresh air passage and a return air passage capable of heat exchange are formed inside the total heat heat exchange core 15. The fresh air passage is arranged in the fresh air passage or forms a part of the fresh air passage, and the return air passage is arranged in the return air passage or forms the return air Part of the air duct to achieve full heat exchange between the fresh air and the return air. The membrane material of the total heat exchange core 15 is preferably graphene, which has the advantages of low resistance, high heat exchange efficiency, water washability, and long service life.

The purification module 14 is used to realize the purification of fresh air and return air. The purification module 14 in the present invention includes a first purification module and a second purification module. The first purification module is disposed upstream and downstream of the fresh air duct, that is, in the fresh air chamber; the second purification module is disposed in the return air duct Upstream of the air inlet, that is, set in the return air inlet chamber in the return air chamber. The first purification module includes at least two filter screens, and the second purification module includes at least one filter screen. 1-2, the first purification module in this embodiment includes a first filter screen 141, a second filter screen 142 disposed in the fresh air inlet cavity, and a formaldehyde removal module 144 disposed in the fresh air outlet cavity , a fourth filter screen 145 , a sterilization module, and a second purification module including a third filter screen 143 arranged in the return air inlet cavity to purify the return air before it enters the total heat exchange core 15 .

The skeleton 12 of the total heat fresh air blower 1 provided by the embodiment of the present invention will be described below with reference to FIGS. 3-6 .

3 to 5 , the skeleton 12 includes a skeleton body 120 and a plurality of top plates. The skeleton body 120 and the plurality of ceiling plates together form a fresh air chamber, a return air chamber and a full heat heat exchange core installation chamber. The fresh air chamber The chamber includes a fresh air inlet chamber and a fresh air outlet chamber respectively located on both sides of the total heat exchange core installation chamber, and the return air chamber includes a return air inlet chamber and a return air chamber respectively located on both sides of the total heat heat exchange core installation chamber. The wind blows out the air cavity. Part of the fresh air outlet cavity and part of the return air inlet cavity are arranged in an upper and lower structure to form a double-layered air duct. 4 and 5, the upstream section of the fresh air outlet cavity adjacent to the total heat exchange core installation chamber constitutes the upper air duct in the double-layer air duct, and the return air inlet air cavity adjacent to the total heat exchange core installation chamber The downstream section of the duct constitutes the lower duct in the double duct. Referring to FIG. 5 , the skeleton body 120 is further formed with a bypass air passage located at the periphery of the total heat heat exchange core installation chamber, and the bypass air passage can communicate with the return air inlet chamber and the return air outlet chamber.

The skeleton of the full-heat fresh air blower provided by the utility model can easily construct a chamber for fresh air circulation and a chamber for return air circulation by decomposing the skeleton into a structure in which the skeleton main body and a plurality of top plates are connected, and the skeleton is reduced. It is difficult to assemble and simplifies the installation process of the skeleton; in addition, the part of the fresh air outlet cavity and the return air inlet cavity located on one side of the full heat heat exchange core installation cavity is arranged as an upper and lower structure to form a double layer An air duct is used to facilitate the realization of the return air mode, and a bypass air duct connecting the return air inlet cavity and the return air outlet cavity is arranged around the installation chamber of the full heat heat exchange core, so as to facilitate the realization of the bypass mode, which can not only The working mode of the full-heat fresh air fan is increased to realize the mutual switching of various working modes, and the internal space of the fresh air fan is fully utilized and a streamlined air duct is constructed, thereby reducing the wind resistance in the process of fresh air and return air transportation. The longitudinal width of the skeleton main body is reduced, which is beneficial to realize the miniaturization and flat design of the full-heat fresh air blower, and the simple skeleton structure can reduce the production cost.

Specifically, referring to FIGS. 5 and 6 , the skeleton body 120 includes a base plate 1201 , a surrounding wall and a plurality of partitions. The surrounding wall includes a first surrounding wall 1202 in the length direction and a second surrounding wall 1203 in the width direction, and a fresh air inlet 12031, a return air outlet 12032, a return air inlet 12033 and a fresh air outlet 12034 are formed on the second surrounding wall 1203, Corresponding to the outdoor air inlet 121 , the outdoor air outlet 122 , the indoor air inlet 123 and the indoor air outlet 124 of the fresh air fan in sequence. The first surrounding wall 1202 and the second surrounding wall 1203 are vertically connected to the substrate 1201 to form an outer frame structure of the skeleton 12 .

5 , the partitions include a first vertical partition 1204 , a second vertical partition 1205 , a third vertical partition 1207 , a fourth vertical partition 1209 , a lateral partition 1206 and an inclined partition 1208 . The first vertical partition 1204 is connected with the base plate 1201, the first surrounding wall 1202, the second surrounding wall 1203 and the horizontal partition 1206, and the second vertical partition 1205 is connected with the first vertical partition 1204, the horizontal partition 1206, The first enclosure wall 1202 is connected to the second enclosure wall 1203, the second vertical partition 1205 is connected to the upper surface of the horizontal partition 1206, and the connected base plate 1201, enclosure, first vertical partition 1204, second vertical partition A fresh air outlet cavity, a return air inlet cavity, and a double-layer air duct are constructed together by the toward the partition plate 1205 and the transverse partition plate 1206 adjacent to each other. In this embodiment, the lower air duct in the double-layer air duct constitutes a part of the return air inlet cavity, the upper air duct constitutes a part of the fresh air outlet cavity, and the air outlet of the lower air duct is the return air inlet cavity. The air outlet is inclined relative to the vertical plane, so that it can not only closely cooperate with the total heat exchange core 15, make reasonable use of the internal space of the fresh fan, but also increase the air outlet volume of the return air duct.

A first air door installation port 12051 is formed on the second vertical partition plate 1205, and the first air door installation port 12051 is used to install the first air door 17, so as to switch on or off the communication between the fresh air outlet chamber and the return air inlet chamber, When the first damper 17 is closed, the full heat fresh air blower 1 can realize full heat exchange mode, and the fresh air duct and the return air duct or the bypass duct are independent of each other at this time; when the first damper 17 is opened, the return air enters the air The cavity is connected to the fresh air outlet cavity. At this time, the internal circulation mode of the fresh air fan can be realized. The indoor return air enters from the return air inlet cavity and is purified by the formaldehyde removal module 144 and the fourth filter screen 145 and directly passes through the upper air duct. Exhaust from the fresh air outlet. Further, in order to realize a streamlined air duct structure, referring to FIG. 6 , the first vertical partition 1204 includes a first arc-shaped section 12041, and the first arc-shaped section 12041 is formed between the fresh air outlet cavity and the return air inlet cavity. shared on the side walls. In addition, the two side edges of the first air door installation opening 12051 can also be set as circular arc structures, that is, a second arc section 12052 is formed on the second vertical partition plate 1205, so that the side of the fresh air outlet cavity The wall surface is an arc-shaped façade, and the side wall surface of the return air inlet cavity is also an arc-shaped façade, which is conducive to the construction of a streamlined air duct.

4 and 5, the third vertical partition 1207 is connected with the base plate 1201, the first surrounding wall 1202 and the second surrounding wall 1203 to form a common side wall of the fresh air inlet cavity and the return air outlet cavity, and the inclined partition The plate 1208 is connected with the second surrounding wall 1203 and the third vertical partition plate 1207 and thus forms a fresh air inlet cavity and a return air outlet cavity adjacent to each other. The inclined clapboard 1208 is L-shaped and is connected with the third vertical clapboard 1207, the fourth vertical clapboard 1209 and the second surrounding wall 1203, so that the air outlet of the fresh air inlet cavity is formed in the inlet of the return air outlet cavity. Below the air outlet, this can not only realize the adjacent arrangement of the fresh air inlet cavity and the return air outlet cavity in the horizontal plane, but also make the air outlet of the fresh air inlet cavity and the air inlet of the return air outlet cavity and the total heat exchange heat. The air inlet and outlet of the core 15 correspond to each other.

5, the fourth vertical partition plate 1209 is connected with the base plate 1201, the first vertical partition plate 1204 and the third vertical partition plate 1207 and is arranged in parallel with the first surrounding wall 1202, and thus a bypass channel is constructed, The base plate 1201 , the first surrounding wall 1202 , the fourth vertical partition plate 1209 and the first top plate 125 are jointly enclosed to form a full heat heat exchange core installation chamber. The constructed bypass duct is located at the periphery of the total heat exchange core installation chamber. The fourth vertical partition plate 1209 is provided with a second air door installation port 12091 for installing the second air door. The second air door installation port 12091 allows bypass ventilation. When the second air door is opened, the bypass air channel can be connected. When the second air door is closed, the bypass air channel can be closed. When the bypass is connected, the indoor return air can directly pass through the return air in sequence. The air inlet cavity, bypass air duct and return air outlet air cavity are discharged to the outside, without heat exchange with the fresh air duct, so as to improve the exhaust speed of the return air.

The frame body 120 in this embodiment can be integrally formed. Since it is basically formed by vertical partitions, it is convenient to form, which can also reduce the assembly procedure of the frame 12 and improve the production efficiency. In addition, the first top plate 125 and the second top plate 126 connected to the top of the frame body 120 can be made of foam plates, which can not only reduce the vibration and noise during the operation of the fresh air fan, but also reduce the mass of the frame 12. The second top plate 126 is installed at the top of the fresh air inlet cavity.

The following introduces several main working modes of the total heat fresh air blower 1.

Full heat heat exchange mode. In the full heat heat exchange mode, the fresh air and the return air need to exchange heat. At this time, the bypass air duct is closed, and the fresh air is discharged into the room through the fresh air inlet cavity, the total heat heat exchange core 15, and the upper air duct through the fresh air outlet cavity. The return air is discharged to the outside through the return air inlet cavity, the total heat heat exchange core 15 and the return air outlet cavity. During this process, the first damper 17 is closed, and the fresh air and return air are fully heat exchanged in the total heat heat exchange core 15. .

Bypass mode. In this mode, the return air does not exchange heat with the fresh air, the fresh air duct may or may not be opened with the fresh air duct, the first damper 17 is closed and the second damper is opened, and the indoor return air passes through the return air inlet cavity, The lower air duct, bypass air duct and return air outlet cavity are discharged to the outside, so that the indoor return air can be quickly discharged. For example, when the indoor air quality is poor due to smoking, odor, etc., the bypass mode can be turned on.

Inner loop mode. In the internal circulation mode, the first air door 17 is opened and the second air door is closed. At this time, the upper air duct will be connected to the return air inlet cavity and the fresh air outlet air cavity. After the indoor return air enters the upper air duct from the indoor air inlet cavity, it passes through The formaldehyde removal module 144 and the fourth filter screen 145 are directly discharged from the fresh air outlet cavity to achieve internal circulation and purification of indoor air. This mode is suitable for poor outdoor air quality.

It can be understood that the total heat fresh air blower 1 of the present invention can also realize other working modes.

So far, the technical solutions of the present invention have been described with reference to the preferred embodiments shown in the accompanying drawings, but those skilled in the art can easily understand that the protection scope of the present invention is obviously not limited to these specific embodiments. On the premise of not departing from the principle of the present invention, those skilled in the art can make equivalent changes or replacements to the relevant technical features, and the technical solutions after these changes or replacements will fall within the protection scope of the present invention.

Claims (10)

1. The skeleton of a full-heat fresh air blower is characterized in that, the skeleton comprises a skeleton main body and a plurality of top plates, and the skeleton main body and the plurality of top plates are jointly formed with a fresh air chamber, a return air chamber and a plurality of top plates. A total heat exchange core installation chamber, the fresh air chamber includes a fresh air inlet cavity and a fresh air outlet cavity respectively located on both sides of the total heat heat exchange core installation chamber, and the return air chamber includes The return air inlet cavity and the return air outlet cavity on both sides of the full heat heat exchange core installation chamber, and the partial section of the fresh air outlet cavity and the partial section of the return air inlet cavity are arranged as upper and lower layers structure to form a double-layer air duct, and a bypass air duct located on the periphery of the total heat heat exchange core installation chamber is also formed on the skeleton body, and the bypass air duct can communicate with the return air inlet chamber and the Return air out of the air cavity. 2. The skeleton of the full-heat fresh air blower according to claim 1, wherein the skeleton main body comprises a base plate, a surrounding wall and a plurality of partitions, and the partitions comprise a first vertical partition, a second vertical partition To the partition plate and the horizontal partition plate, the first vertical partition plate is connected with the base plate, the surrounding wall and the horizontal partition plate, and the second vertical partition plate is connected with the first vertical partition plate , The horizontal partition is connected to the surrounding wall, the second vertical partition is connected to the upper surface of the horizontal partition, the connected base plate, the surrounding wall, the first vertical partition The partition plate, the second vertical partition plate and the transverse partition plate together constitute the fresh air outlet cavity, the return air inlet cavity and the double-layer air duct adjacent to each other. 3 . The skeleton of the full-heat fresh air blower according to claim 2 , wherein the first vertical partition plate comprises a first arc-shaped section, and the first arc-shaped section is formed at the outlet of the fresh air. 4 . on the common side wall of the air cavity and the return air inlet air cavity. 4. The skeleton of the full-heat fresh air blower according to claim 3, wherein the double-layer air duct comprises a lower-layer air duct, and the lower-layer air duct constitutes a part of the return air inlet cavity, so The air outlet of the lower air duct is arranged obliquely with respect to the vertical plane. 5. The skeleton of the full-heat fresh air blower according to claim 4, wherein a first air door installation opening is formed on the second vertical partition plate, and the first air door installation opening is used for installing the first air door In order to turn on or off the communication between the fresh air outlet cavity and the return air inlet cavity, the two side edges of the first air door installation opening are arranged in a circular arc structure. 6. The skeleton of the full-heat fresh air blower according to claim 5, wherein the clapboard further comprises a third vertical clapboard and an inclined clapboard, the third vertical clapboard is connected to the base plate and the base plate. The surrounding walls are connected to form a common side wall of the fresh air inlet cavity and the return air outlet cavity, and the inclined partitions are connected to the surrounding walls and the third vertical partition and are thus constructed The fresh air inlet cavity and the return air outlet cavity adjacent to each other are discharged. 7 . The skeleton of the full-heat fresh air blower according to claim 6 , wherein the skeleton main body further comprises a fourth vertical partition plate, the plurality of top plates comprises a first top plate, and the surrounding wall comprises a first The surrounding wall, the fourth vertical partition is connected with the base plate, the first vertical partition and the third vertical partition and is arranged in parallel with the first surrounding wall, and thus constitutes a In the bypass duct, the base plate, the first enclosure wall, the fourth vertical partition plate and the first top plate are jointly enclosed to form the total heat heat exchange core installation chamber. 8. The skeleton of the full-heat fresh air blower according to claim 7, wherein the fourth vertical partition is provided with a second air door installation opening for installing the second air door, and the second air door installation opening The bypass air passage is communicated with the return air inlet cavity. 9. The skeleton of the full-heat fresh air blower according to claim 7, wherein the skeleton body is integrally formed; and/or The plurality of top boards further include a second top board, the second top board is mounted on the top of the fresh air inlet cavity, and the material of the first top board and/or the second top board is a foam board. 10. A full-heat fresh air blower, characterized in that it comprises the skeleton described in any one of claims 1-9.

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