CN211503041U - Suspension type fresh air purification breather - Google Patents

Abstract

The utility model discloses a ceiling type fresh air purification and ventilation device, which comprises a shell and a foaming lining, wherein the foaming lining defines a hollow cavity; a heat exchanger and a baffle plate assembly are arranged in the foaming inner liner; the heat exchanger and the partition plate assembly are detachably arranged in the hollow cavity of the foaming lining and jointly divide the hollow cavity into a first cavity, a second cavity, a third cavity and a fourth cavity; wherein, foaming inside lining and baffle subassembly are all by EPS expanded material integrated into one piece. When the ceiling type fresh air purifying and ventilating device is assembled, the foaming lining is placed in the shell, the partition plate assembly is placed in the hollow cavity of the foaming lining, and then other components are installed; meanwhile, when the foam lining is required to be maintained, the partition plate assembly and all parts are directly detached from the foam lining. The assembly form of the internal structure modularization greatly improves the assembly efficiency of products, reduces the labor cost, and simultaneously improves the convenience of the maintenance of the whole device.

Description

Suspension type fresh air purification breather

Technical Field

The utility model belongs to new trend purifies the air regenerating device field, especially relates to a suspension type new trend purifies air regenerating device.

Background

In hot summer or cold winter, people need to close doors and windows for a long time in order to keep a comfortable indoor air state; this causes carbon dioxide and dirty air to accumulate in the room, and the long-term exposure to such an environment may cause damage to the human body. The fresh air purifying and ventilating device is a ventilating device, and can provide fresh and comfortable air for a user under the condition of ensuring the tight closing of doors and windows.

At present, similar products in the market are more and more miscellaneous, and the products are mainly divided into: one-way air interchanger (only air intake and not air exhaust) and two-way air interchanger (air intake and air exhaust, and generally equipped with heat exchanger parts); a ventilator equipped with a high efficiency filter, and a ventilator not equipped with a high efficiency filter. According to the difference of mounting means, fresh air purification breather divide into again: ceiling mounted ventilators, floor mounted ventilators, wall mounted ventilators, and the like. The device is a product which is provided with a high-efficiency filter in a suspended ceiling type bidirectional flow mode.

The fresh air purifying and ventilating device of the ceiling type bidirectional flow preparation high-efficiency filter has many advantages: the ceiling type installation can realize the multi-purpose of one machine, and one device can be installed to process the air of different rooms simultaneously; the bidirectional flow product can exhaust indoor dirty air while supplying air to the indoor, so that quick air exchange is realized, and meanwhile, because the heat exchanger component is arranged in the device, the temperature and humidity energy in the exhaust air can be recycled to act on fresh air, so that the energy loss is effectively reduced; the device provided with the high-efficiency filter can remove harmful tiny particulate matters (PM2.5 particles and the like) in the air while ensuring the freshness of fresh air. However, the functions of the fresh air purifying and ventilating device with the efficient filter in the ceiling type bidirectional flow are various, the structure of the fresh air purifying and ventilating device is relatively complex, and the manufacturing, assembling, installing and maintaining of the fresh air purifying and ventilating device are difficult.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that a modified suspension type fresh air purification breather is provided to improve the convenience of suspension type fresh air purification breather installation and maintenance.

In order to realize the technical purpose, the utility model adopts the following technical scheme:

the utility model provides a suspension type fresh air purification breather, includes: an outer shell and a foamed liner, the foamed liner comprising a floor and four sidewalls, the foamed liner defining a hollow cavity;

a heat exchanger and baffle plate assembly disposed within the foamed liner; the heat exchanger and the partition plate assembly are both detachably arranged in a hollow cavity of the foaming lining and jointly divide the hollow cavity into a first chamber, a second chamber, a third chamber and a fourth chamber;

wherein the foamed lining and the clapboard component are both integrally formed by EPS foaming materials.

Preferably, the partition plate assembly comprises a first partition plate, a second partition plate and a third partition plate, a first slot, a second slot and a third slot are formed in the inner side wall of the foaming lining, the first partition plate is detachably inserted into the first slot, the second partition plate is detachably inserted into the second slot, and the third partition plate is detachably inserted into the third slot.

Preferably, the heat exchanger is in a cuboid shape, and four corners of the heat exchanger are respectively matched with the first partition plate, the second partition plate, the third partition plate and the inner wall of the foaming lining to jointly divide the cavity of the foaming lining into a first cavity, a second cavity, a third cavity and a fourth cavity; the four sides of the heat exchanger correspond to the first chamber, the second chamber, the third chamber and the fourth chamber respectively.

Preferably, the shell is provided with a fresh air inlet, a fresh air outlet, an air exhaust inlet and an air exhaust outlet, and the foamed lining is provided with openings corresponding to the fresh air inlet, the fresh air outlet, the air exhaust inlet and the air exhaust outlet respectively; the fresh air inlet is communicated with the first cavity, the fresh air outlet is communicated with the third cavity, the exhaust air inlet is communicated with the second cavity, and the exhaust air outlet is communicated with the fourth cavity.

Preferably, the first fresh air filter is attached to the side of the heat exchanger located in the first chamber, the exhaust air filter is attached to the side of the heat exchanger located in the second chamber, and the second fresh air filter is attached to the side of the heat exchanger located in the third chamber.

Preferably, the first partition board is provided with a first bent part for limiting the first edge of the heat exchanger and a second bent part for limiting the first fresh air filter;

the inner wall of the foaming lining is provided with a third bent part for limiting a second edge of the heat exchanger, a fourth bent part for limiting the first fresh air filter together by matching with the second bent part, and a fifth bent part for limiting the exhaust air filter;

the second partition board is provided with a sixth bending part for limiting a third edge of the heat exchanger, a seventh bending part for limiting the exhaust filter together by matching with the fifth bending part, and an eighth bending part for limiting the second fresh air filter;

and the third partition board is provided with a ninth bending part for limiting a fourth edge of the heat exchanger and a tenth bending part for matching with the eighth bending part to limit the second fresh air filter jointly.

Preferably, a first fan is arranged in the third chamber, a second fan is arranged in the fourth chamber, and the first fan and the second fan are electrically connected with the control device.

Preferably, the control device comprises a control box and a control box cover, the control box is installed inside the shell, the outer wall of the control box is provided with a first flanging, a second flanging, a third flanging and a fourth flanging, the first flanging is opposite to the third flanging, and the second flanging is opposite to the fourth flanging; the first flanging is pressed on the outer side of the shell, the second flanging, the third flanging and the fourth flanging are respectively attached to the inner side of the shell, and the third flanging is in bolted connection with the inner wall of the shell; the control box cover is arranged on the second flanging and the fourth flanging of the control box in a turnover mode.

Preferably, the ceiling type fresh air purification and ventilation device further comprises an access cover plate, an access opening is further formed in the upper panel of the shell, and the access cover plate is detachably mounted on the upper panel and used for plugging the access opening; the heat preservation cotton is pasted to the inboard of access panel, the inboard position department with first cavity and fourth cavity corresponding of top panel is pasted and is had the heat preservation cotton.

Wherein, preferably, the whole thickness of fresh air purification breather is 220mm ~ 230 mm.

Compared with the prior art, the utility model, beneficial effect as follows:

the utility model provides a suspension type new trend purifies breather, inside lining including the foamed material preparation, it separates the cavity of foaming inside lining for first cavity through heat exchanger and baffle plate assembly jointly, the second cavity, third cavity and fourth cavity, foaming inside lining and baffle plate assembly are by mould direct forming, the inside lining of will foaming is put into the shell during the equipment, and put into the cavity of foaming inside lining with baffle plate assembly in, then other parts of repacking can, simultaneously, when needing the maintenance, directly with baffle plate assembly and each part follow the foaming inside lining in dismantle can. The assembling form of the internal structure modularization greatly improves the assembling efficiency of products, reduces the labor cost, further improves the market competitiveness, and simultaneously improves the convenience of the maintenance of the whole device.

Drawings

Fig. 1 is a schematic view of the overall structure of a ceiling type fresh air purifying and ventilating device provided by the present invention;

FIG. 2 is a schematic view of the internal structure of the ceiling type fresh air purifying and ventilating device shown in FIG. 1;

FIG. 3 is a schematic view of the construction of the foamed liner and baffle assembly of FIG. 2;

FIG. 4 is a schematic view of the internal structure of the foamed liner of FIG. 2;

FIG. 5 is a schematic view of the structure of the first separator;

FIG. 6 is a schematic structural view of a second separator;

FIG. 7 is a schematic structural view of a third separator;

FIG. 8 is a schematic view of the inside of the access panel;

FIG. 9 is a schematic view of the inside of the upper panel;

FIG. 10 is a schematic structural view of a control box;

fig. 11 is a schematic view of the mounted state of the control box.

In the drawings, each reference numeral denotes:

1. a housing; 10. foaming the lining; 11. a first chamber; 12. a second chamber; 13. a third chamber; 14. a fourth chamber; 15. a fresh air inlet; 16. a fresh air outlet; 17. an exhaust inlet; 18. an exhaust outlet; 19. an upper panel; 101. a first slot; 102. a second slot; 103. a third slot; 104. a third bent portion; 105. a fourth bent portion; 106. a fifth bent portion; 191. an access hole;

2. a heat exchanger;

3. a bulkhead assembly; 31. a first separator; 32. a second separator; 33. a third partition plate; 311. a first bent portion; 312. a second bent portion; 321. a sixth bent portion; 322. a seventh bend; 323. an eighth bending section; 331. a ninth bend section; 332. a tenth bending section;

4. a first fan;

5. a second fan;

6. a first fresh air filter;

7. a second fresh air filter;

8. an exhaust air filter;

9. a control device; 91. a control box; 92. controlling the box cover; 911. a first flanging; 912. second flanging; 913. third flanging; 914. a fourth flanging;

20. overhauling the cover plate;

50. and (5) heat preservation cotton.

Detailed Description

The technical solution of the present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.

It will be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like, as used herein, refer to an orientation or positional relationship indicated in the drawings that is solely for the purpose of facilitating the description and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be considered as limiting the present application.

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 one or more of that feature. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise.

Referring to fig. 1 and 2, a ceiling type fresh air purifying and ventilating device according to the present invention includes a metal casing 1, a foamed lining 10, a heat exchanger 2, a partition plate assembly 3, a first fan 4, a second fan 5, a first fresh air filter 6, a second fresh air filter 7, an air exhaust filter 8, and a control device 9. The first fan 4 and the second fan 5 are both electrically connected with the control device 9, and the control device 9 can control the opening and closing of the first fan 4 and the second fan 5 so as to control the operation and stop of the whole device.

Referring to fig. 2, the metal can 1 is preferably a galvanized sheet. The metal shell 1 is internally provided with a lining made of foaming materials, the foaming lining 10 limits a hollow cavity, and the heat exchanger 2 and the baffle plate assembly 3 are both detachably arranged in the hollow cavity of the foaming lining 10 and jointly divide the hollow cavity into a first cavity 11, a second cavity 12, a third cavity 13 and a fourth cavity 14.

The shell 1 is provided with a fresh air inlet 15, a fresh air outlet 16, an exhaust air inlet 17 and an exhaust air outlet 18. Referring to fig. 3 and 4, the foamed lining 10 includes four side walls and a bottom plate, and openings 15 ', 16', 17 'and 18' corresponding to the fresh air inlet 15, the fresh air outlet 16, the exhaust air inlet 17 and the exhaust air outlet 18 of the housing 1 are formed on two opposite side walls of the foamed lining 10. The fresh air inlet 15 is communicated with the first chamber 11 through an opening 15 ', the fresh air outlet 16 is communicated with the third chamber 13 through an opening 16', the exhaust air inlet 17 is communicated with the second chamber 12 through an opening 17 ', and the exhaust air outlet 18 is communicated with the fourth chamber 14 through an opening 18'.

The first fresh air filter 6 is arranged in the first chamber 11 and is used for filtering larger particles (such as dust, lint and the like) in fresh air; the second fresh air filter is arranged in the third chamber 13 and is used for filtering micro harmful substances (such as PM2.5 particles) in the fresh air; the exhaust air filter 8 is disposed in the second chamber 12 for filtering relatively large particles (e.g., dust, lint, etc.) in the indoor air.

The first fan 4 is arranged in the third chamber 13, an air outlet of the first fan 4 is communicated with indoor air through the fresh air outlet 16, and the fresh air inlet 15 is communicated with outdoor air. Outdoor fresh air can enter the first cavity 11 through the fresh air inlet 15; the air enters the heat exchanger 2 for energy exchange after being primarily filtered by the first fresh air filter 6; the fresh air after energy exchange is subjected to high-level filtration by the second fresh air filter 7 and then enters the third chamber 13; the first fan 4 can send fresh air which is filtered twice in the third chamber 13 into the chamber.

The second fan 5 is arranged in the fourth chamber 14, an air outlet of the second fan 5 is communicated with outdoor air through the air exhaust outlet 18, and the air exhaust inlet 17 is communicated with indoor air. Indoor air enters the second chamber 12 through the exhaust air inlet 17, is subjected to primary filtration through the exhaust air filter 8 and then enters the heat exchanger 2 for energy exchange; the air after energy exchange by the heat exchanger 2 enters the fourth chamber 14, and the second fan 5 can discharge the air in the fourth chamber 14 to the outside.

The utility model provides a suspension type new trend purifies breather, the foaming inside lining 10 and the baffle subassembly 3 that set up in metal casing 1 are by mould direct forming. During the equipment with foaming inside lining 10 put into metal casing 1 to put into the cavity of foaming inside lining 10 with baffle subassembly 3, then other parts can, simultaneously, when needing the maintenance, directly dismantle out from foaming inside lining 10 each part can. In the structure provided in this embodiment, the partition plate assemblies 3 are respectively inserted into the insertion slots provided on the foamed liner 10, and the heat exchanger 2 is inserted into the bent portions provided on the partition plate assemblies 3 and the bent portions on the inner wall of the foamed liner 10, so as to assemble and fix the partition plate assemblies 3 and the heat exchanger 2. The assembling form of the internal structure modularization greatly improves the assembling efficiency of products, reduces the labor cost, further improves the market competitiveness, and simultaneously improves the convenience of the maintenance of the whole device.

In the above embodiment, it is preferable that the diaphragm assembly 3 includes the first diaphragm 31, the second diaphragm 32, and the third diaphragm 33. As shown in fig. 4, a first slot 101, a second slot 102 and a third slot 103 are arranged on the inner side wall of the foamed lining 10, and the first slot 101, the second slot 102 and the third slot 103 are respectively arranged on three different inner side walls of the foamed lining 10; the first partition board 31 is detachably inserted in the first slot 101, the second partition board 32 is detachably inserted in the second slot 102, and the third partition board 33 is detachably inserted in the third slot 103. Utilize first baffle 31, second baffle 32, third baffle 33 and heat exchanger 2 cooperation foaming inside lining 10's inner wall to divide metal casing 1's cavity into four cavities jointly to can select the baffle of unidimensional not to match according to the difference of required cavity size, including guaranteeing that shell 1's cavity can hold all parts, the structure is comparatively compact moreover.

In the above embodiment, preferably, the heat exchanger 2 is in a rectangular parallelepiped shape, and four corners of the heat exchanger 2 are respectively matched with the first partition plate 31, the second partition plate 32, the third partition plate 33, and the inner wall of the casing 1, so as to jointly divide the cavity of the casing 1 into the first chamber 11, the second chamber 12, the third chamber 13, and the fourth chamber 14. The four sides of the heat exchanger 2 correspond to the first chamber 11, the second chamber 12, the third chamber 13 and the fourth chamber 14, respectively. The first fresh air filter 6 is attached to the side of the heat exchanger 2 located in the first chamber 11, the exhaust air filter 8 is attached to the side of the heat exchanger 2 located in the second chamber 12, and the second fresh air filter 7 is attached to the side of the heat exchanger 2 located in the third chamber 13. The four corners of the heat exchanger 2 are limited by the inner walls of the first partition plate 31, the second partition plate 32, the third partition plate 33 and the foaming lining 10 respectively to fix the relative positions of the heat exchanger 2, so that fresh air or indoor air can enter the heat exchanger 2 at the optimal angle for heat exchange.

Referring to fig. 5, the first partition 31 has a first bent portion 311 and a second bent portion 312, the first bent portion 311 located in the middle is used for limiting the first edge of the heat exchanger 2, and the second bent portion 312 located near the first chamber 11 is used for limiting the first fresh air filter 6.

Referring to fig. 4, the inner wall of the foamed inner liner 10 on the side not provided with the insertion slot has a third bent portion 104, a fourth bent portion 105 and a fifth bent portion 106, wherein the third bent portion 104 located in the middle is used for limiting the second edge of the heat exchanger 2, the fourth bent portion 105 (located on the left side in fig. 4) close to the first chamber 11 is used for cooperating with the second bent portion 312 to limit the relative position of the first fresh air filter 6, and the fifth bent portion 106 (located on the right side in fig. 4) close to the second chamber 12 is used for limiting the exhaust air filter 8.

Referring to fig. 6, the second partition 32 has a sixth bending portion 321, a seventh bending portion 322, and an eighth bending portion 323, where the sixth bending portion 321 located in the middle is used to limit the third edge of the heat exchanger 2, the seventh bending portion 322 near the second chamber 12 is used to cooperate with the fifth bending portion 106 to limit the relative position of the exhaust filter 8, and the eighth bending portion 323 near the third chamber 13 is used to limit the second fresh air filter 7.

Referring to fig. 7, the third partition 33 has a ninth bent portion 331 and a tenth bent portion 332, where the ninth bent portion 331 located in the middle is used for limiting the fourth edge of the heat exchanger 2, and the tenth bent portion 332 located near the third chamber 13 is used for cooperating with the eighth bent portion 323 to limit the relative position of the second fresh air filter 7.

In the above embodiment, it is preferable that the foamed inner liner 10, the first partition 31, the second partition 32, and the third partition 33 are integrally formed of EPS (Expanded Polystyrene foam) foamed material. The use of EPS for the foamed lining 10 and the baffle assembly 3 has the following advantages: firstly, the raw material cost is low, and the part forming and the die manufacturing are simple, so that the die opening cost and the manufacturing cost can be reduced; secondly, the EPS foaming quality is low, so that the whole device is light in weight and is more convenient to transport and install; thirdly, the EPS foam is soft, which is beneficial to improving the sealing performance of the whole device; fourthly, the sound and heat insulation effect of EPS foaming is better, and the heat preservation effect and the sound insulation effect of the whole device can be improved; fifthly, as the internal structure adopts an integral EPS foaming form, the foaming parts replace a sheet metal partition plate and a sealing element inside the metal sheet metal shell, and the assembly process of the product is further simplified; sixth, because set up EPS foaming part in the metal casing, the heat preservation effect of device is more excellent, has promoted the heat exchange efficiency of device, has reduced the possibility that the device produced the condensation, can make the device be suitable for more abominable environment to the cotton volume of heat preservation that the device need be used has been practiced thrift.

Traditional suspension type fresh air purification breather needs to keep warm at the outside parcel heat preservation cotton of whole shell. In the embodiment, the foamed lining 10, the first partition plate 31, the second partition plate 32 and the third partition plate 33 are all made of EPS materials, so that on one hand, a sheet metal baffle originally arranged inside a sheet metal shell is replaced, the structure inside the shell is simplified, and the assembly is more convenient; on the other hand, the heat insulation performance and the sealing performance of the whole device are improved, so that the whole device only needs a small amount of heat insulation cotton to insulate the part of the outdoor side which is not covered by the foaming material. Specifically, in this embodiment, only the heat preservation cotton needs to be arranged in the partial area inside the upper panel 19 and the access panel 20, which saves about 75% of the heat preservation cotton.

Specifically, in the above embodiment, preferably, the ceiling-mounted fresh air purifying and ventilating device further includes an access cover plate 20, the upper panel 19 of the housing 1 is further provided with an access opening 191, and the access cover plate 20 is detachably mounted on the upper panel 19 and blocks the access opening 191. When the whole device needs to be overhauled, the overhaul cover plate 20 is opened, and the whole device can be overhauled through the overhaul port 191. Meanwhile, the foaming lining 10, the first partition plate 31, the second partition plate 32 and the third partition plate 33 are four independent modules, so that the first partition plate 31, the second partition plate 32 and the third partition plate 33 can be detached separately during maintenance, the first fan 4, the second fan 5 and the control device 9 can be maintained greatly conveniently, the whole device does not need to be detached from the inside of the suspended ceiling, and the maintenance work of products is greatly facilitated.

In the above embodiment, it is preferable that, as shown in fig. 8, the heat insulating cotton 50 is adhered to the inner side of the access panel 20, and as shown in fig. 9, the heat insulating cotton 50 is adhered to the inner side of the upper panel 19 at the position corresponding to the first chamber 11 and the fourth chamber 14.

In the above embodiment, preferably, the control device 9 includes a control box 91 and a control box cover 92, and the control box 91 is installed inside the housing 1, so as to avoid the control device 9 from being exposed, and improve the aesthetic property of the whole device. The control box 91 is preferably installed in the second chamber 12 or the third chamber 13 inside the chamber.

Referring to fig. 10 and 11, the control box 91 has a first flange 911, a second flange 912, a third flange 913, and a fourth flange 914 on the outer wall close to the metal shell 1, where the first flange 911 and the third flange 913 are opposite to each other, and the second flange 912 and the fourth flange 914 are opposite to each other. When the metal shell is installed, the first flanging 911 is pressed on the outer side of the metal shell 1, the second flanging 912, the third flanging 913 and the fourth flanging 914 are respectively attached to the inner side of the shell 1, and the third flanging 913 is in bolt connection with the inner wall of the shell 1; the control box cover 92 is reversibly installed on the second flange 912 and the fourth flange 914 of the control box 91. Specifically, the method comprises the following steps: the parts of the second flange 912 and the fourth flange 914 close to the periphery are attached to the inner side of the housing 1, and the parts close to the center are overlapped and fixed with the control box cover 92, so that the control box cover 92 can be conveniently detached from the outside of the housing 1, and the control circuit can be conveniently overhauled after the control box 91 is completely detached from the inside of the housing 1. With the above special fixing structure, the control device 9 can perform processing not only outside the device but also inside the device. Specifically, when the device is outside, the control device 9 can be processed only by removing the control box cover 92; when the apparatus is in use, the control box 91 and the control box cover 92 can be taken out by removing the bolt connected to the third flange 913, and the control apparatus 9 is processed. Because the device can handle electrical system in inside, so the device needn't reserve the maintenance space in the side of device in order to install or overhaul electrical system when the furred ceiling is installed, has saved the installation space of device, has promoted the competitiveness of device.

In the above embodiment, preferably, the device adopts a large-diameter fan wind wheel, so that the thickness of the fan is reduced, meanwhile, the height of the heat exchanger 2 is greatly reduced by increasing the section size of the heat exchanger 2, and the overall thickness of the device is controlled to be 220-230 mm by the above two measures. Because the thickness of whole device is less, consequently reduced the requirement to the furred ceiling height, further reduced the installation cost of device, reduced the usage space in user's room simultaneously.

It is right above the utility model provides a suspension type new trend purifies breather carries out detailed explanation. Any obvious modifications to the above would be obvious to those of ordinary skill in the art, without departing from the spirit of the present invention, and it is intended to constitute a violation of the patent rights of the present invention and to bear the relevant legal responsibility.

Claims (10)

1. The utility model provides a suspension type fresh air purification breather, its characterized in that includes:

an outer shell and a foamed liner, the foamed liner comprising a floor and four sidewalls, the foamed liner defining a hollow cavity;

a heat exchanger and baffle plate assembly disposed within the foamed liner; the heat exchanger and the partition plate assembly are both detachably arranged in a hollow cavity of the foaming lining and jointly divide the hollow cavity into a first chamber, a second chamber, a third chamber and a fourth chamber;

wherein the foamed lining and the clapboard component are both integrally formed by EPS foaming materials.

2. The ceiling type fresh air purifying and ventilating device according to claim 1, wherein:

the partition plate assembly comprises a first partition plate, a second partition plate and a third partition plate, a first slot, a second slot and a third slot are formed in the inner side wall of the foaming lining, the first partition plate is detachably inserted into the first slot, the second partition plate is detachably inserted into the second slot, and the third partition plate is detachably inserted into the third slot.

3. The ceiling type fresh air purifying and ventilating device according to claim 2, wherein:

the heat exchanger is in a cuboid shape, four corners of the heat exchanger are respectively matched with the first partition plate, the second partition plate, the third partition plate and the inner wall of the foaming lining, and the hollow cavity of the foaming lining is divided into a first cavity, a second cavity, a third cavity and a fourth cavity together; the four sides of the heat exchanger correspond to the first chamber, the second chamber, the third chamber and the fourth chamber respectively.

4. The ceiling type fresh air purifying and ventilating device according to claim 3, wherein:

the shell is provided with a fresh air inlet, a fresh air outlet, an air exhaust inlet and an air exhaust outlet, and the foamed lining is provided with openings corresponding to the fresh air inlet, the fresh air outlet, the air exhaust inlet and the air exhaust outlet respectively; the fresh air inlet is communicated with the first cavity, the fresh air outlet is communicated with the third cavity, the exhaust air inlet is communicated with the second cavity, and the exhaust air outlet is communicated with the fourth cavity.

5. The ceiling type fresh air purifying and ventilating device according to claim 4, wherein:

the first fresh air filter is attached to the side surface of the heat exchanger located in the first chamber, the exhaust air filter is attached to the side surface of the heat exchanger located in the second chamber, and the second fresh air filter is attached to the side surface of the heat exchanger located in the third chamber.

6. The ceiling type fresh air purifying and ventilating device as claimed in claim 5, wherein:

the first partition board is provided with a first bent part for limiting a first edge of the heat exchanger and a second bent part for limiting the first fresh air filter;

the inner wall of the foaming lining is provided with a third bent part for limiting a second edge of the heat exchanger, a fourth bent part for limiting the first fresh air filter together with the second bent part, and a fifth bent part for limiting the exhaust air filter;

the second partition board is provided with a sixth bending part for limiting a third edge of the heat exchanger, a seventh bending part for limiting the exhaust filter together with the fifth bending part, and an eighth bending part for limiting the second fresh air filter;

and the third partition board is provided with a ninth bending part for limiting a fourth edge of the heat exchanger and a tenth bending part for matching with the eighth bending part to limit the second fresh air filter together.

7. The ceiling type fresh air purifying and ventilating device according to claim 4, wherein:

the fan is characterized in that a first fan is arranged in the third cavity, a second fan is arranged in the fourth cavity, and the first fan and the second fan are electrically connected with a control device.

8. The ceiling type fresh air purifying and ventilating device as claimed in claim 7, wherein:

the control device comprises a control box and a control box cover, the control box is installed inside the shell, a first flanging, a second flanging, a third flanging and a fourth flanging are arranged on the outer wall of the control box, the first flanging is opposite to the third flanging, and the second flanging is opposite to the fourth flanging; the first flanging is pressed on the outer side of the shell, the second flanging, the third flanging and the fourth flanging are respectively attached to the inner side of the shell, and the third flanging is connected with the inner wall of the shell through a bolt; the control box cover is arranged on the second flanging and the fourth flanging of the control box in a turnover mode.

9. The ceiling type fresh air purifying and ventilating device according to claim 1, wherein:

the ceiling type fresh air purifying and ventilating device further comprises an overhaul cover plate, an overhaul port is further formed in the upper panel of the shell, and the overhaul cover plate is detachably mounted on the upper panel and used for plugging the overhaul port; the heat preservation cotton is pasted to the inboard of access panel, the inboard position department with first cavity and fourth cavity corresponding of top panel is pasted and is had the heat preservation cotton.

10. The ceiling-mounted fresh air purifying and ventilating device as claimed in any one of claims 1 to 9, wherein:

the whole thickness of the ceiling type fresh air purifying and ventilating device is 220 mm-230 mm.

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