Household fresh air ventilator

Abstract

The utility model provides a household fresh air ventilator which comprises a machine shell, the machine shell is divided into four cavities through criss-cross partition plates, the four cavities are provided with an air supply pipe, an air return pipe, an air inlet pipe and an air exhaust pipe respectively, heat exchangers are arranged at the criss-cross positions of the partition plates, the air inlet pipe is communicated with the air supply pipe through the heat exchangers, and the air outlet pipe is communicated with the air exhaust pipe through the heat exchangers. The air return pipe is communicated with the exhaust pipe through the heat exchanger, cleanable filtering structures are arranged on the inner side of the air return pipe and the inner side of the air inlet pipe, and a detachable collecting box is arranged at the shell cleaning and filtering position of the machine shell. After air inlet work, the cleanable filtering structure can filter filtered impurities, the filtered impurities can be swept into the collecting box, and finally the collecting box is disassembled to remove the impurities. The air supply device has the advantages that impurities at the filtering structure are convenient to clean, the air inlet volume can be adjusted, and the problems that in the prior art, the impurities are difficult to clean, and the air supply volume is inconvenient to adjust are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of air exchange, and in particular to a household fresh air exchanger. Background Art

[0002] As people's living standards improve, the requirements for indoor air quality are getting higher and higher. Fresh air blowers can achieve indoor and outdoor air exchange to ensure the cleanliness of indoor air.

[0003] After searching, in the prior art, a Chinese patent with patent application number CN202211038329.8 discloses an intelligent digital energy-saving fresh air ventilation device, including a fresh air ventilator body, on which a support assembly, a downward pressure assembly and an adjustment assembly are arranged; wherein the fresh air ventilator body is used for two-way ventilation between indoor and outdoor; wherein the support assembly is used to hoist the fresh air ventilator body; wherein the downward pressure assembly is used to limit the downward pressure of the fresh air ventilator body; wherein the adjustment assembly is used to adjust the height of the downward pressure assembly; the disassembly and assembly operation can be completed without the cooperation of two people through the downward pressure assembly and the adjustment assembly, thereby reducing human resources and the risk of high-altitude operations; when the lug is driven to move upward or downward by the connecting plate, the first movable rod is synchronously retracted and contracted in the inner cavity of the movable tube, and the spring is contracted or stretched under force, and the spring absorbs the force and generates a rebound force, which can alleviate the vibration generated by the downward pressure assembly when it moves; but the following defects still exist:

[0004] (1) It is inconvenient to adjust the air volume of the air supply in the prior art. When the air volume of the air supply is large, it is easy to cause a large amount of indoor air intake, which reduces the comfort level;

[0005] (2) In the prior art, impurities in the air are filtered through a filter, which needs to be disassembled and cleaned after long-term use. The cleaning is relatively cumbersome and it is not convenient to perform automatic cleaning.

[0006] Therefore, we make improvements to this and propose a household fresh air fan. Utility Model Content

[0007] The utility model aims to solve the existing problems of inconvenience in adjusting the air supply volume and inconvenience in cleaning the filter screen.

[0008] In order to achieve the above-mentioned utility model purpose, the utility model provides the following technical solutions:

[0009] Household fresh air exchanger can improve the above problems.

[0010] The utility model is specifically as follows:

[0011] The invention comprises a casing, wherein the casing is divided into four cavities by crisscross partitions, wherein the four cavities are respectively provided with a supply duct, a return duct, an inlet duct and an exhaust duct, and a heat exchanger is arranged at the crisscrossing parts of the partitions, wherein the inlet duct is connected to the supply duct via the heat exchanger, and the return duct is connected to the exhaust duct via the heat exchanger, and wherein the invention is characterized in that:

[0012] The inner sides of the return air duct and the inlet air duct are both provided with a cleanable filtering structure, and the housing is provided with a detachable collecting box at the housing cleaning filtering position;

[0013] After the air intake is working, the filter structure can be cleaned to filter the filtered impurities, and the filtered impurities can also be cleaned so that the impurities are cleaned into the collection box, and finally the collection box is removed to remove the impurities.

[0014] As a preferred technical solution of the present application, the cleanable filtering structure includes assembly plates respectively arranged on the inner sides of the return air duct and the inlet air duct, the filter plates are fixedly connected at the center of the assembly plates, the inner side walls of the assembly plates are fixedly connected to a support frame, the support frame is fixedly connected to a second motor, the driving end of the second motor is fixedly connected to an installation shaft, the outer end of the installation shaft passes through the filter plate and is sleeved with a cleaning brush, and the outer end of the installation shaft is threadedly connected to a limiting sleeve.

[0015] As a preferred technical solution of the present application, two fixing blocks are fixedly connected to the side walls of the assembly plate, and the fixing blocks are fixedly connected to the casing by screws. Two limit blocks are provided at both ends of the assembly plate, and the limit blocks are respectively fixedly connected to the casing.

[0016] As a preferred technical solution of the present application, a collection box is provided on the outside of the filter plate, a sealing cover is provided at the bottom of the casing, and a strip opening matching the collection box is provided on the sealing cover, and two magnets are symmetrically and fixedly connected on the bottom plate of the collection box.

[0017] As a preferred technical solution of the present application, two protrusions are symmetrically provided on the outer side wall of the installation shaft, and a groove matching the protrusions is provided in the installation portion of the cleaning brush.

[0018] As a preferred technical solution of the present application, a first fan is arranged at the inner end of the air supply duct through a mounting tube, and a second fan is arranged at the inner end of the exhaust duct; a rotating shaft is rotatably connected in the mounting tube, an adjusting plate is arranged on one side of the rotating shaft, two clamping blocks are symmetrically arranged on the rotating shaft, and the two clamping blocks are fixedly connected to the adjusting plate by bolts respectively, a worm gear is fixedly connected to the outer end of the rotating shaft, a mounting plate is fixed on the mounting tube, and a first motor is fixedly connected to the mounting plate.

[0019] As a preferred technical solution of the present application, sound-absorbing cotton is fixedly connected to the inner wall of the sealing cover, and two rectangular openings are provided on the sound-absorbing cotton.

[0020] Compared with the prior art, the utility model has the following beneficial effects:

[0021] In the solution of the utility model:

[0022] 1. The cleanable filter structure is set to realize automatic cleaning of the filter, without the need to frequently disassemble the filter for cleaning, which is convenient for users to use, has a high degree of automation, and solves the problem of inconvenience in cleaning the filter in the prior art;

[0023] 2. By setting the mounting tube, rotating shaft, adjusting plate, clamping block, worm gear, first motor and worm, the air volume of the air supply can be automatically adjusted, which is convenient for users to adjust the air volume of the air supply according to their own needs, improves the comfort of users, and solves the problem of inconvenience in adjusting the air volume of the air supply in the prior art. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 A three-dimensional structural schematic diagram of a household fresh air exchange fan provided by the utility model;

[0025] Figure 2 A schematic diagram of the internal structure of the household fresh air exchanger provided by the utility model;

[0026] Figure 3 A schematic diagram of the internal structure of the installation pipe of the household fresh air exchange fan provided by the utility model;

[0027] Figure 4 A schematic diagram of the adjustable filtering structure of the household fresh air exchange fan provided by the utility model;

[0028] Figure 5 A schematic diagram of the separation structure of the household fresh air exchange fan provided by the utility model;

[0029] Figure 6 This is a schematic diagram of the bottom structure of the household fresh air exchange fan provided by the utility model.

[0030] Indicated in the figure:

[0031] 1. Casing; 2. Air supply duct; 3. Return air duct; 4. Air inlet duct; 5. Exhaust duct; 6. Mounting pipe; 7. Rotating shaft; 8. Adjusting plate; 9. Block; 10. Worm gear; 11. Mounting plate; 12. First motor; 13. Worm; 14. First fan; 15. Cleanable filtering structure; 1501. Assembly plate; 1502. Filter plate; 1503. Support frame; 1504. Second motor; 1505. Mounting shaft; 1506. Cleaning brush; 1507. Limit sleeve; 1508. Fixing block; 1509. Limit block; 1510. Collecting box; 1511. Magnet; 16. Heat exchanger; 17. Second fan; 18. Sealing cover; 19. Sound-absorbing cotton. DETAILED DESCRIPTION

[0032] To make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be described clearly and completely in conjunction with the accompanying drawings. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments.

[0033] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 As shown, the present embodiment proposes a household fresh air fan, including a casing 1, on the outer side walls at both ends of the casing 1 are respectively fixedly connected with an air supply duct 2, an air return duct 3, an air inlet duct 4 and an exhaust duct 5, so as to ventilate the indoor air and ensure the cleanliness of the indoor air. A mounting tube 6 corresponding to the position of the air supply duct 2 is fixedly connected in the casing 1, and a rotating shaft 7 is rotatably connected in the mounting tube 6. An adjusting plate 8 is provided on one side of the rotating shaft 7, and two clamping blocks 9 are symmetrically provided on the rotating shaft 7, and the two clamping blocks 9 are respectively fixedly connected to the adjusting plate 8 by bolts, and a worm gear 10 is fixedly connected to the outer end of the rotating shaft 7, and a mounting plate 11 is fixedly connected to the mounting tube 6, and a first electric The machine 12, the driving end of the first motor 12 is fixedly connected with a worm 13 meshing with the worm gear 10, so as to facilitate the adjustment of the air volume of the air supply and improve the comfort of the users. The inner end of the mounting tube 6 is mounted with a first fan 14, and the first fan 14 is fixedly connected with the casing 1. The inner sides of the return air duct 3 and the air inlet duct 4 are provided with a cleanable filtering structure 15. A heat exchanger 16 is installed in the casing 1. A second fan 17 corresponding to the position of the exhaust duct 5 is fixedly connected in the casing 1. The working methods of the first fan 14, the second fan 17 and the heat exchanger 16 are prior arts and will not be described in detail herein. The lower end surface of the casing 1 is fixedly connected with a sealing cover 18 by screws.

[0034] like Figure 2 and Figure 4As shown, the cleanable filtering structure 15 includes an assembly plate 1501 respectively arranged on the inner side of the return air duct 3 and the air inlet duct 4, a filter plate 1502 is fixedly connected at the center of the assembly plate 1501, a support frame 1503 is fixedly connected to the inner wall of the assembly plate 1501, a second motor 1504 is fixedly connected to the support frame 1503, a mounting shaft 1505 is fixedly connected to the driving end of the second motor 1504, the outer end of the mounting shaft 1505 passes through the filter plate 1502 and is sleeved with a cleaning brush 1506, and the outer end of the mounting shaft 1505 is threadedly connected to a limiting sleeve 1507; the second motor 1504 drives the rotation of the mounting shaft 1505 so that the cleaning brush 1506 automatically cleans the filter plate 1502, without the need to disassemble for cleaning, and the cleaning brush 1506 is also convenient to replace.

[0035] like Figure 2 and Figure 4 As shown, as a preferred implementation, on the basis of the above-mentioned method, further, two fixing blocks 1508 are fixedly connected to the side walls of the assembly plate 1501, and the fixing blocks 1508 are fixedly connected to the casing 1 by screws, and two limit blocks 1509 are provided at both ends of the assembly plate 1501, and the limit blocks 1509 are respectively fixedly connected to the casing 1, so as to facilitate the installation of the assembly plate 1501 and the casing 1.

[0036] like Figure 5 and Figure 6 As shown, as a preferred embodiment, on the basis of the above method, further, a collecting box 1510 is provided on the outer side of the filter plate 1502, and a strip opening matching the collecting box 1510 is opened on the sealing cover 18, and two magnets 1511 are symmetrically and fixedly connected on the bottom plate of the collecting box 1510, which is convenient for collecting impurities dropped after cleaning, and also convenient for installation and disassembly.

[0037] like Figure 2 and Figure 4 As shown, as a preferred embodiment, based on the above method, further, two protrusions are symmetrically provided on the outer wall of the mounting shaft 1505, and a groove matching the protrusion is opened in the mounting part of the cleaning brush 1506; the cleaning brush 1506 is ensured to rotate stably to ensure the cleaning effect.

[0038] like Figure 1 and Figure 5 As shown, as a preferred embodiment, on the basis of the above method, further, a sound-absorbing cotton 19 is fixedly connected to the inner wall of the sealing cover 18, and two rectangular openings are opened on the sound-absorbing cotton 19; the sound-absorbing cotton 19 can absorb the noise generated during operation to improve the quietness.

[0039] Specifically, when the household fresh air exchange fan is working / in use: by starting the first fan 14 and the second fan 17, the indoor air can be discharged to the outside, and at the same time, fresh air can be sent into the room to realize indoor air ventilation. When the air volume needs to be adjusted during the air supply process, the first motor 12 is started to rotate the worm 13. The rotation of the worm 13 drives the worm wheel 10 and the rotating shaft 7 to rotate, so that the adjustment plate 8 is rotated, and the air volume of the air supply is automatically adjusted; when the filter plate 1502 needs to be cleaned, the second motor 1504 is started to rotate the installation shaft 1505, so that the cleaning brush 1506 is rotated, and the impurities on the filter plate 1502 are cleaned. The impurities that fall after cleaning fall into the collection box 1510, and then the collection box 1510 is removed to pour out the impurities, and then the collection box 1510 is reset and installed for easy cleaning.

[0040] All technical features in this embodiment can be freely combined according to actual needs.

[0041] The above embodiments are preferred implementation schemes of the present invention. In addition, the present invention can also be implemented in other ways. Any obvious replacement without departing from the concept of the present technical solution is within the protection scope of the present invention.

Claims

1. A household fresh air exchanger, comprising a housing (1), wherein the housing (1) is divided into four cavities by crisscross partitions, wherein the four cavities are respectively provided with an air supply duct (2), an air return duct (3), an air inlet duct (4) and an air exhaust duct (5), wherein a heat exchanger (16) is arranged at the crisscross positions of the partitions, wherein the air inlet duct (4) is connected to the air supply duct (2) via the heat exchanger (16), and the air return duct (3) is connected to the air exhaust duct (5) via the heat exchanger (16), wherein the ... The inner sides of the return air duct (3) and the inlet air duct (4) are both provided with a cleanable filtering structure (15), and the housing (1) is provided with a detachable collecting box (1510) at the housing cleaning filtering position (15); After the air intake is completed, the filter structure (15) can be cleaned to filter the filtered impurities and the filtered impurities can be cleaned so that the impurities are cleaned into the collection box (1510). Finally, the collection box (1510) is removed to remove the impurities.

2. A household fresh air fan according to claim 1, characterized in that: The cleanable filtering structure (15) comprises an assembly plate (1501) respectively arranged on the inner side of the return air duct (3) and the air inlet duct (4); a filter plate (1502) is fixedly connected to the center of the assembly plate (1501); a support frame (1503) is fixedly connected to the inner wall of the assembly plate (1501); a second motor (1504) is fixedly connected to the support frame (1503); a driving end of the second motor (1504) is fixedly connected to a mounting shaft (1505); an outer end of the mounting shaft (1505) passes through the filter plate (1502) and is sleeved with a cleaning brush (1506); and an outer end of the mounting shaft (1505) is threadedly connected to a limiting sleeve (1507).

3. A household fresh air fan according to claim 2, characterized in that: Two fixing blocks (1508) are fixedly connected to the side walls on both sides of the assembly plate (1501), and the fixing blocks (1508) are fixedly connected to the casing (1) via screws. Two limit blocks (1509) are provided at both ends of the assembly plate (1501), and the limit blocks (1509) are respectively fixedly connected to the casing (1).

4. A household fresh air exchanger according to claim 2, characterized in that: The outer side of the filter plate (1502) is provided with a collection box (1510), the bottom of the housing (1) is provided with a sealing cover (18), and the sealing cover (18) is provided with a strip opening matching the collection box (1510), and two magnets (1511) are symmetrically and fixedly connected to the bottom plate of the collection box (1510).

5. A household fresh air exchanger according to claim 2, characterized in that: Two protrusions are symmetrically arranged on the outer side wall of the installation shaft (1505), and a groove matching the protrusions is provided in the installation portion of the cleaning brush (1506).

6. A household fresh air exchanger according to claim 1, characterized in that: The inner end of the air supply pipe (2) is provided with a first fan (14) via a mounting pipe (6), and the inner end of the air exhaust pipe (5) is provided with a second fan (17); A rotating shaft (7) is rotatably connected inside the mounting tube (6), an adjusting plate (8) is provided on one side of the rotating shaft (7), two clamping blocks (9) are symmetrically provided on the rotating shaft (7), and the two clamping blocks (9) are respectively fixedly connected to the adjusting plate (8) by bolts, a worm gear (10) is fixedly connected to the outer end of the rotating shaft (7), a mounting plate (11) is fixedly connected to the mounting tube (6), and a first motor (12) is fixedly connected to the mounting plate (11).

7. A household fresh air exchanger according to claim 1, characterized in that: A sound-absorbing cotton (19) is fixedly connected to the inner side wall of the sealing cover (18), and two rectangular openings are formed on the sound-absorbing cotton (19).

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