Fresh air ventilator with heat recovery function

Abstract

The utility model relates to the technical field of fresh air ventilators, and discloses a fresh air ventilator with a heat recovery function, which comprises a mounting box, a fresh air channel and a hot air exhaust channel are respectively arranged on the left side and the right side of the mounting box, cleaning mechanisms are respectively arranged in the fresh air channel and the hot air exhaust channel, and the two cleaning mechanisms are distributed in the left-right direction. The cleaning mechanism comprises a motor fixing box arranged in the fresh air channel, and three supporting frames are fixedly installed on the outer wall of the motor fixing box. A first motor is started through an external controller, an output shaft of the first motor rotates to drive a rotating shaft to rotate, the rotating shaft drives fan blades to rotate, along with rotation of the rotating shaft, a cleaning brush conducts rotary cleaning on the surface of a filter screen, dust, dirt and other impurities accumulated on the filter screen are effectively removed, and the automatic cleaning function improves the filtering efficiency of the filter screen and improves the cleaning efficiency of the filter screen. The service life is prolonged, the maintenance cost of a user is reduced, and the automation degree of the equipment and the user experience are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of fresh air ventilators, and more specifically, to a fresh air ventilator with a heat recovery function. Background Art

[0002] The fresh air ventilator is designed and developed based on the principle of supplying air on one side of a closed room and induced air on the other side. It relies on a mechanical air supply and induced air system to force a fresh air flow field to form in the system, thereby keeping the indoor air clean and fresh at all times. This independent indoor air replacement and purification circulation system can input natural fresh air while removing indoor polluted air, effectively improving indoor air quality. However, when the existing fresh air ventilator device is in use, dust and impurities will inevitably accumulate due to the long-term exposure of the fan filter to the air. These dust and impurities will not only affect the filter The filtering effect will lead to a decrease in the quality of air entering the room, and it may also clog the filter, affecting the air supply efficiency and operating stability of the fan. Specifically, with the accumulation of dust and impurities, the filter will gradually become thicker, and the resistance of air passing through the filter will increase, causing the fan to consume more energy to promote air flow, which not only increases energy consumption, but may also cause the fan to overheat and shorten its service life. In addition, the clogged filter may also affect the circulation of indoor air, resulting in a decrease in indoor air quality and may even cause indoor air pollution problems. Therefore, it needs to be improved and optimized. Utility Model Content

[0003] In order to overcome the deficiencies of the prior art, the utility model provides a fresh air ventilator with a heat recovery function, which has the advantages of automatic cleaning and wind direction adjustment.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a fresh air ventilator with a heat recovery function, comprising an installation box, a fresh air channel and a hot air exhaust channel are respectively opened on the left and right sides of the installation box, and cleaning mechanisms are respectively arranged inside the fresh air channel and the hot air exhaust channel, and the two groups of cleaning mechanisms are distributed in the left and right directions, and the cleaning mechanism comprises a motor fixing box arranged inside the fresh air channel, three supporting frames are fixedly installed on the outer wall of the motor fixing box, the outer walls of the three supporting frames are fixedly connected to the inner wall of the fresh air channel, a motor 1 is fixedly installed on the right inner wall of the motor fixing box, a rotating shaft is fixedly installed on the output shaft of the motor 1, three fan blades are fixedly installed on the outer wall of the rotating shaft, and a cleaning brush is fixedly sleeved on the outer wall of the rotating shaft.

[0005] As a preferred technical solution of the utility model, a motor protection shell is fixedly installed on the top of the installation box, and motor 2 is arranged inside the motor protection shell. The bottom of motor 2 is fixedly connected to the top of the installation box, and a rotating rod is rotatably installed on the top of the installation box. Belts are wound around the outer wall of the rotating rod and the output shaft of motor 2, and gear 1 is fixedly sleeved on the outer wall of the rotating rod.

[0006] As a preferred technical solution of the utility model, a filter is fixedly installed on the left side of the fresh air channel, and the left end of the rotating shaft passes through the filter and is rotatably connected to the filter.

[0007] As a preferred technical solution of the utility model, the filter screen is located on the right side of the cleaning brush, and the cleaning brush fits the left side of the filter screen.

[0008] As a preferred technical solution of the utility model, an exchange channel is provided inside the installation box, the bottom and top of the exchange channel extend outside the installation box and are fixedly connected to the installation box, a number of heat exchange plates are fixedly installed inside the exchange channel, and the fresh air channel and the hot air exhaust channel are fixedly connected to the exchange channel and the internal channels are communicated.

[0009] As a preferred technical solution of the utility model, a fresh air outlet pipe is rotatably installed on the top of the exchange channel, and a gear 2 is fixedly sleeved on the outer wall of the fresh air outlet pipe, and the gear 2 is meshed with the gear 1.

[0010] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0011] 1. The utility model starts motor 1 through an external controller. The output shaft of motor 1 rotates to drive the rotating shaft to rotate, and the rotating shaft drives the fan blades to rotate. As the rotating shaft rotates, the cleaning brush rotates and cleans the surface of the filter, effectively removing dust, dirt and other impurities accumulated on the filter. The automatic cleaning function not only improves the filtration efficiency of the filter and extends its service life, but also reduces the user's maintenance cost, improves the automation level of the equipment and user experience. Compared with traditional devices, the device realizes the dual functions of ventilation and cleaning, improves the comprehensive performance of the equipment, and the automatic cleaning function reduces the user's maintenance workload, improves the usability of the equipment, and improves the energy utilization efficiency of the equipment, which is in line with the development trend of energy conservation and environmental protection.

[0012] 2. The utility model starts the motor 2 through an external controller, the output shaft of the motor 2 rotates, and the rotating rod is driven to rotate by the cooperation of the belt, the rotating rod drives the belt to rotate, the belt drives the gear 1 to rotate, the gear 1 meshes with the gear 2 to drive the gear 2 to rotate, and through the rotation of the gear 2, the fresh air outlet duct can rotate within a certain range, thereby covering the indoor space more widely. Compared with the traditional device, this design enables the fresh air outlet duct to distribute the fresh air more evenly, avoiding the problem of insufficient or excessive fresh air in some areas. At the same time, due to the large rotation range of the fresh air outlet duct, it can also be flexibly adjusted according to the indoor layout and personnel activities, further improving the utilization efficiency and comfort of the fresh air. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the structure of the utility model;

[0014] Figure 2 It is a schematic diagram of the side structure of the utility model;

[0015] Figure 3 This is a schematic diagram of the internal structure of the installation box of the utility model;

[0016] Figure 4 It is a schematic diagram of the side cross-sectional structure of the utility model;

[0017] Figure 5 It is a schematic diagram of the partial explosion structure of the utility model.

[0018] In the figure: 1. Installation box; 2. Fresh air duct; 3. Hot air exhaust duct; 4. Heat exchange plate; 5. Motor fixing box; 6. Support frame; 7. Motor 1; 8. Rotating shaft; 9. Fan blades; 10. Cleaning brush; 11. Filter; 12. Motor protection case; 13. Motor 2; 14. Rotating rod; 15. Belt; 16. Gear 1; 17. Gear 2; 18. Exchange channel; 19. Fresh air outlet duct. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] like Figures 1 to 5As shown, the utility model provides a fresh air ventilator with a heat recovery function, including an installation box 1, a fresh air duct 2 and a hot air exhaust duct 3 are respectively opened on the left and right sides of the installation box 1, and cleaning mechanisms are respectively arranged inside the fresh air duct 2 and the hot air exhaust duct 3, and the two groups of cleaning mechanisms are distributed in the left and right directions. The cleaning mechanism includes a motor fixing box 5 arranged inside the fresh air duct 2, three supporting frames 6 are fixedly installed on the outer wall of the motor fixing box 5, and the outer walls of the three supporting frames 6 are fixedly connected to the inner wall of the fresh air duct 2, a motor 7 is fixedly installed on the right inner wall of the motor fixing box 5, a rotating shaft 8 is fixedly installed on the output shaft of the motor 7, three fan blades 9 are fixedly installed on the outer wall of the rotating shaft 8, and a cleaning brush 10 is fixedly sleeved on the outer wall of the rotating shaft 8.

[0021] The motor 7 is started by an external controller, and the output shaft of the motor 7 rotates to drive the shaft 8 to rotate, and the shaft 8 drives the fan blades 9 to rotate. As the shaft 8 rotates, the cleaning brush 10 rotates and cleans the surface of the filter 11, effectively removing the dust, dirt and other impurities accumulated on the filter 11. The automatic cleaning function not only improves the filtration efficiency of the filter 11 and extends its service life, but also reduces the user's maintenance cost, improves the degree of automation of the equipment and the user experience. Compared with the traditional device, the present device realizes the dual functions of ventilation and cleaning, improves the comprehensive performance of the equipment, and the automatic cleaning function reduces the user's maintenance workload, improves the usability of the equipment, and improves the energy utilization efficiency of the equipment, which is in line with the development trend of energy conservation and environmental protection.

[0022] The user starts the motor 7 through the external controller, and the output shaft of the motor 7 rotates, driving the rotating shaft 8 to rotate. The fan blades 9 on the rotating shaft 8 rotate accordingly, generating wind force, and introducing the outdoor fresh air into the room through the fresh air channel 2. Before entering the room, the fresh air first passes through the filter 11.

[0023] The filter 11 intercepts tiny particles such as dust, pollen, and bacteria in the air to ensure that the air entering the room is clean and fresh. As the shaft 8 rotates, the cleaning brush 10 rotates and cleans the surface of the filter 11. The cleaning brush 10 effectively removes the dust, dirt, and other impurities accumulated on the filter 11 to maintain the filtering efficiency of the filter. The indoor exhaust gas is discharged through the hot air exhaust channel 3. At the same time, the fresh air channel 2 and the hot air exhaust channel 3 are both connected to the exchange channel 18. When the exhaust gas passes through the heat exchange plate 4 in the exchange channel 18, the heat therein is transferred to the exhaust gas. The fresh air is passed to the heat exchange plate 4. When the fresh air passes through the other side of the heat exchange plate 4, it is heated by the transferred heat, thereby realizing heat recovery and reuse. The user can also start the motor 2 13 through the external controller. The output shaft of the motor 2 13 rotates, and the rotating rod 14 is driven to rotate through the belt 15. The gear 1 16 on the rotating rod 14 meshes with the gear 2 17, driving the gear 2 17 to rotate. The rotation of the gear 2 17 enables the fresh air outlet duct 19 to rotate within a certain range, thereby covering the indoor space more widely and realizing uniform distribution of the fresh air.

[0024] Among them, a motor protection shell 12 is fixedly installed on the top of the installation box 1, and a motor 2 13 is arranged inside the motor protection shell 12. The bottom of the motor 2 13 is fixedly connected to the top of the installation box 1, and a rotating rod 14 is rotatably installed on the top of the installation box 1. A belt 15 is wound around the outer wall of the rotating rod 14 and the output shaft of the motor 2 13, and a gear 16 is fixedly sleeved on the outer wall of the rotating rod 14.

[0025] The motor 2 13 is started by an external controller, and the output shaft of the motor 2 13 rotates, and the rotating rod 14 is driven to rotate by the cooperation of the belt 15, and the rotating rod 14 drives the belt 15 to rotate, and the belt 15 drives the gear 1 16 to rotate, and the gear 1 16 is meshed with the gear 2 17 to drive the gear 2 17 to rotate. Through the rotation of the gear 2 17, the fresh air outlet duct 19 can rotate within a certain range, thereby covering the indoor space more widely. Compared with the traditional device, this design enables the fresh air outlet duct 19 to distribute the fresh air more evenly, avoiding the problem of insufficient or excessive fresh air in some areas. At the same time, since the fresh air outlet duct 19 has a large rotation range, it can also be flexibly adjusted according to the indoor layout and personnel activities, further improving the utilization efficiency and comfort of the fresh air.

[0026] Among them, a filter screen 11 is fixedly installed on the left side of the fresh air channel 2, and the left end of the rotating shaft 8 passes through the filter screen 11 and is rotatably connected to the filter screen 11.

[0027] By adopting a rotational connection between the filter screen 11 and the rotating shaft 8, it is ensured that the rotating shaft 8 will not interfere with or affect the filter screen 11 when performing a rotational movement, so that the filter screen 11 can maintain its filtering function while allowing the rotating shaft 8 to perform necessary rotational movements.

[0028] The filter screen 11 is located on the right side of the cleaning brush 10 , and the cleaning brush 10 fits the left side of the filter screen 11 .

[0029] By setting the filter 11, the cleaning brush 10 is closely fitted to the left side of the filter 11, ensuring that during the cleaning process, the cleaning brush 10 can effectively remove the dust, dirt and other impurities accumulated on the surface of the filter 11. When the fresh air ventilator is running, the filter 11 will intercept impurities in the air entering the system, ensuring that the air entering the room is clean and fresh. As time goes by, a certain amount of dust and dirt will accumulate on the filter 11, affecting its filtering effect. In order to maintain the cleanliness and filtering performance of the filter 11, the cleaning brush 10 will rotate with the operation of the fan to brush away the accumulated dust and dirt.

[0030] Among them, an exchange channel 18 is arranged inside the installation box 1, the bottom and top of the exchange channel 18 extend outside the installation box 1 and are fixedly connected to the installation box 1, a plurality of heat exchange plates 4 are fixedly installed inside the exchange channel 18, and the fresh air channel 2 and the hot air exhaust channel 3 are fixedly connected to the exchange channel 18 and the internal channels are communicated.

[0031] By setting the exchange channel 18 so that its bottom and top both extend to the outside of the installation box 1 and are fixed to the installation box 1 by a solid connection, the exchange channel 18 not only forms a whole with the installation box 1, but also provides a smooth channel for the circulation of air. Inside the exchange channel 18, a heat exchange plate 4 is fixedly installed. The heat exchange plate 4 has excellent thermal conductivity and can effectively exchange heat between the exhausted exhaust gas and the incoming fresh air. When the exhaust gas passes through the heat exchange plate 4, the heat therein is transferred to the heat exchange plate 4; when the fresh air passes through the other side of the heat exchange plate 4, the heat is transferred to the fresh air, thereby realizing heat recovery and reuse.

[0032] Among them, a fresh air outlet pipe 19 is rotatably installed on the top of the exchange channel 18, and a gear 2 17 is fixedly sleeved on the outer wall of the fresh air outlet pipe 19, and the gear 2 17 is meshed with the gear 1 16.

[0033] The gear 1 16 is meshed with the gear 2 17, so that the rotation of the gear 1 16 drives the rotation of the gear 2 17, and the rotation of the gear 2 17 drives the rotation of the fresh air outlet duct 19 connected thereto. Driven by the gear 2 17, the fresh air outlet duct 19 rotates at the same angular speed and direction, so that the fresh air outlet duct 19 can cover a wider space, thereby achieving a more uniform and extensive distribution of the fresh air.

[0034] The working principle and use process of this utility model:

[0035] The user starts the motor 7 through the external controller, and the output shaft of the motor 7 rotates, driving the rotating shaft 8 to rotate. The fan blades 9 on the rotating shaft 8 rotate accordingly, generating wind force, and introducing the outdoor fresh air into the room through the fresh air channel 2. Before entering the room, the fresh air first passes through the filter 11.

[0036] The filter 11 intercepts tiny particles such as dust, pollen, and bacteria in the air to ensure that the air entering the room is clean and fresh. As the shaft 8 rotates, the cleaning brush 10 rotates and cleans the surface of the filter 11. The cleaning brush 10 effectively removes the dust, dirt, and other impurities accumulated on the filter 11 to maintain the filtering efficiency of the filter. The indoor exhaust gas is discharged through the hot air exhaust channel 3. At the same time, the fresh air channel 2 and the hot air exhaust channel 3 are both connected to the exchange channel 18. When the exhaust gas passes through the heat exchange plate 4 in the exchange channel 18, the heat therein is transferred to the exhaust gas. The fresh air is passed to the heat exchange plate 4. When the fresh air passes through the other side of the heat exchange plate 4, it is heated by the transferred heat, thereby realizing heat recovery and reuse. The user can also start the motor 2 13 through the external controller. The output shaft of the motor 2 13 rotates, and the rotating rod 14 is driven to rotate through the belt 15. The gear 1 16 on the rotating rod 14 meshes with the gear 2 17, driving the gear 2 17 to rotate. The rotation of the gear 2 17 enables the fresh air outlet duct 19 to rotate within a certain range, thereby covering the indoor space more widely and realizing uniform distribution of the fresh air.

[0037] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0038] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A fresh air ventilator with heat recovery function, comprising a mounting box (1), characterized in that: A fresh air passage (2) and a hot air exhaust passage (3) are respectively provided on the left and right sides of the installation box (1), and cleaning mechanisms are respectively provided inside the fresh air passage (2) and the hot air exhaust passage (3), and the two groups of cleaning mechanisms are distributed in the left and right directions. The cleaning mechanisms include a motor fixing box (5) arranged inside the fresh air passage (2), three support frames (6) are fixedly installed on the outer wall of the motor fixing box (5), and the outer walls of the three support frames (6) are fixedly connected to the inner wall of the fresh air passage (2), a motor 1 (7) is fixedly installed on the right inner wall of the motor fixing box (5), a rotating shaft (8) is fixedly installed on the output shaft of the motor 1 (7), three fan blades (9) are fixedly installed on the outer wall of the rotating shaft (8), and a cleaning brush (10) is fixedly sleeved on the outer wall of the rotating shaft (8).

2. The fresh air ventilator with heat recovery function according to claim 1, characterized in that: A motor protection shell (12) is fixedly installed on the top of the installation box (1), a second motor (13) is arranged inside the motor protection shell (12), the bottom of the second motor (13) is fixedly connected to the top of the installation box (1), a rotating rod (14) is rotatably installed on the top of the installation box (1), a belt (15) is wound around the outer wall of the rotating rod (14) and the output shaft of the second motor (13), and a gear (16) is fixedly sleeved on the outer wall of the rotating rod (14).

3. The fresh air ventilator with heat recovery function according to claim 1, characterized in that: A filter screen (11) is fixedly installed on the left side of the fresh air passage (2), and the left end of the rotating shaft (8) passes through the filter screen (11) and is rotatably connected to the filter screen (11).

4. The fresh air ventilator with heat recovery function according to claim 3 is characterized in that: The filter screen (11) is located on the right side of the cleaning brush (10), and the cleaning brush (10) is in contact with the left side of the filter screen (11).

5. The fresh air ventilator with heat recovery function according to claim 1, characterized in that: An exchange channel (18) is provided inside the installation box (1), the bottom and top of the exchange channel (18) both extend outside the installation box (1) and are fixedly connected to the installation box (1), a plurality of heat exchange plates (4) are fixedly installed inside the exchange channel (18), and the fresh air channel (2) and the hot air exhaust channel (3) are both fixedly connected to the exchange channel (18), and the internal channels are connected.

6. The fresh air ventilator with heat recovery function according to claim 5, characterized in that: A fresh air outlet pipe (19) is rotatably mounted on the top of the exchange channel (18), and a second gear (17) is fixedly sleeved on the outer wall of the fresh air outlet pipe (19), and the second gear (17) is meshed with the first gear (16).

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