Multi-angle purification air supply device for central air conditioner

Abstract

The application relates to the field of air conditioners, in particular to a multi-angle purification air supply device for a central air conditioner, which comprises a main air box, an air inlet pipe communicated with the inside of the air direction is connected to the upper end of the main air box, an air outlet is arranged at the front end of the main air box, an angle air supply module is arranged at the position of the air outlet, a centrifugal fan is rotationally connected to the middle position of the main air box, a purification air inlet box is fixedly connected to the left side surface of the main air box, the right side of the purification air inlet box is communicated with the inside of the main air box, a purification air pipe communicated with the inside of the purification air inlet box is fixedly connected to the left side surface of the purification air inlet box, a purification air inlet fan is fixedly connected to the centrifugal fan, a purification filter core module is arranged at the position of the left side of the purification air inlet fan in the purification air inlet box, so that the application does not hinder the main ventilation air path of the air conditioner.

Description

Technical Field

[0001] The invention relates to the field of air conditioning, in particular to a multi-angle purification and air supply device for central air conditioning. Background Art

[0002] Central air conditioning is an air conditioning system that uses an outdoor unit to generate cooling (heating) and provide cooling (heating) services to each room. Depending on the location of use, it can be divided into two categories: residential central air conditioners and commercial central air conditioners. Residential central air conditioners are primarily suitable for small spaces like homes, while commercial central air conditioners are widely used in large commercial spaces such as shopping malls and office buildings.

[0003] The indoor unit of the household central air conditioner, that is, the part that needs to supply air to the room, needs to use centrifugal fan components to supply air to the room. Today's families have higher and higher requirements for the quality of life, so the requirements for the air quality of the home environment are also getting higher and higher. Therefore, many families now often have air purifiers in their homes, but many air purifiers also need fans and other air supply components. If the two can be combined, the use of one electrical appliance can be reduced, which not only saves energy consumption and material loss in the production of household appliances, but also saves the electricity loss generated by the family during use, thereby greatly achieving energy-saving effects and indirectly protecting the environment. At the same time, it also reduces the cost spent by families in purchasing electrical appliances.

[0004] There are now many combined air conditioners on the market that combine the two. In this process, the method of using filter elements to purify the air is widely used. However, the traditional practice is often to directly install filter element structures in the air supply duct. However, this will affect the ventilation efficiency to a certain extent, and as the use time increases, the ventilation efficiency of the filter element will become worse and worse, thereby making the energy consumption of the air conditioner higher and higher, which does not meet the requirements of energy conservation and emission reduction. Summary of the Invention

[0005] In order to overcome the above technical problems, the present invention provides a multi-angle purification and air supply device for central air conditioning, which uses the rotation of the centrifugal fan to open a ventilation duct on its side and adds a filter element therein, so as not to cause any obstruction to the ventilation duct.

[0006] The purpose of the present invention can be achieved through the following technical solutions:

[0007] The present invention provides a multi-angle purification and air supply device for a central air conditioner, comprising:

[0008] A main wind box, the upper end of which is connected to an air inlet pipe communicating with the interior thereof, an air outlet is provided at the front end of the main wind box, and an angled air supply module is provided at the position of the air outlet;

[0009] a centrifugal fan, the centrifugal fan being rotatably connected to the middle position of the main wind box, and the centrifugal fan being cylindrical in shape as a whole;

[0010] The left side of the main air box is fixedly connected to a purification air inlet box, the right side of the purification air inlet box is communicated with the interior of the main air box, and the left side of the purification air inlet box is fixedly connected to a purification air duct communicated with the interior thereof;

[0011] A purification air intake fan, the purification air intake fan is coaxially fixedly connected to the centrifugal fan and is arranged in the purification air intake box;

[0012] The purification filter module is arranged in the purification air inlet box at a position on the left side of the purification air inlet fan.

[0013] It should be further explained that an air collecting hood is rotatably connected to one end of the left side of the main air box that is communicated with the purification air inlet box. The air collecting hood is fixedly connected to both the centrifugal fan and the purification air inlet fan. The middle part of the air collecting hood is processed into a hollow shape, and a purification conveying mechanism is provided between the air collecting hood and the rightmost side of the centrifugal fan.

[0014] It should be further explained that the purification and conveying mechanism includes a purification and conveying pipe, the two ends of which are fixedly connected to the rear side of the centrifugal fan and the air collecting hood respectively, and the conveying pipe surrounds the hollow position on the air collecting hood inside, and the purification and conveying pipe is evenly processed with through holes.

[0015] It should be further explained that the purification and conveying mechanism includes a purification and conveying pipe, the two ends of which are fixedly connected to the rear end of the centrifugal fan and the air collecting hood respectively, and the conveying pipe surrounds the hollow position on the air collecting hood inside, and the middle position of the centrifugal fan is evenly distributed with ventilation plates along its axial direction, and the ventilation plates are fixedly connected to the blades of the centrifugal fan, and the ventilation plates are fixedly connected to the purification and conveying pipe through ventilation rods, and the blades, ventilation rods and ventilation plates of the centrifugal fan are all machined with through grooves, and the centrifugal fan is connected with the through grooves inside it through the outer tip part of its blades, so that the airflow can flow from the inside of the purification and conveying pipe through the ventilation rods, ventilation plates and blades of the centrifugal fan to the outside world.

[0016] It should be further explained that the purification filter element module includes a purification mounting frame, and a mounting groove is fixedly installed at the lower end of the purification air inlet box. The purification mounting frame is inserted into the purification air inlet box through the mounting groove and fixed by bolts. The purification mounting frame is circumferentially evenly provided with filter element mounting grooves around its central axis. A filter element is inserted into the filter element mounting groove. The filter element is U-shaped, and a gap is left between the side of the filter element mounting groove and the filter element. The method of installing the purification filter element module through the mounting groove can facilitate the replacement and installation of the filter element.

[0017] It should be further explained that the purification mounting frame has a connecting groove between two adjacent filter element mounting grooves, a connecting pipe is inserted into the connecting groove, and the two ends of the connecting pipe are respectively fixedly connected to the left end of one of the two closest filter element mounting grooves and the right end of the other.

[0018] It should be further explained that, one of the filter elements installed in two adjacent filter element installation slots can be a filtration filter element and the other can be a fragrance filter element.

[0019] It should be further explained that the purified air inlet box is provided with an iris mechanism on the left side of the purification filter module, and the iris mechanism includes an iris splint, the middle of the iris splint is through-shaped, and an iris clamping groove is provided on the inner side of the iris splint. A plurality of iris closing pieces are circumferentially connected to the iris splint, and a closed gear is fixedly connected to the rotating connection between each iris closing piece and the iris clamping groove. A circulating gear meshing with all the circulating gears is rotatably connected to the iris clamping groove, and a driving mechanism for controlling the rotation of the circulating gear is provided in the iris splint.

[0020] It should be further explained that a DC motor is provided on the fixed frame in the purification air inlet box, and the input shaft of the DC motor is coaxially fixedly connected to the purification air inlet fan, and the driving mechanism includes a driving magnet, a driving coil and a return spring. A plurality of driving grooves are evenly opened in the circumference of the iris splint, and the driving magnet is fixedly connected to the epicyclic gear. A return spring is provided between the driving groove and the driving magnet, and the two ends of the return spring are respectively fixedly connected to the driving magnet and the bottom surface of the driving groove, and the other end of the driving groove is provided with a driving coil fixedly connected to the iris splint, and the two ends of the wire on the driving coil are respectively connected to the two poles of the DC motor.

[0021] It should be further explained that the angle air supply module includes a vertical wind direction adjustment mechanism and a left and right wind direction adjustment mechanism. The vertical wind direction adjustment mechanism includes a vertical adjustment plate and a first connecting rod. The vertical adjustment plates are connected in parallel with the main wind box at the position of the air outlet in the vertical direction, and two adjacent vertical adjustment plates are connected by a first connecting rod. The upper and lower ends of the first connecting rod are respectively rotatably connected to the vertical adjustment plates on its upper and lower sides. The left and right wind direction adjustment mechanism includes left and right adjustment plates and a second connecting rod. The left and right adjustment plates are connected in parallel with the main wind box in the left and right directions. The second connecting rod is arranged between adjacent left and right adjustment plates, and the two sides of the second connecting rod are rotatably connected to the left and right adjustment plates on its left and right sides.

[0022] Beneficial effects of the present invention:

[0023] 1. The present invention places the purification filter module in the purification air inlet box, which will not affect the air passage in the main air box. In this way, not only will the purification filter module itself not affect the circulation of air in the main air box, but even if the filter is clogged after a long period of use, it will only affect the purification effect, and will not have any impact on the other functions of the central air conditioner, and will not cause an increase in energy consumption.

[0024] 2. The present invention allows the purified air to enter the purification delivery pipe, then enter the ventilation rod, ventilation plate and blades of the centrifugal fan, and finally be released into the room through the tip of the blades of the centrifugal fan. In this way, the purified air can be directly pushed into the room by the wind force generated by the centrifugal fan, which makes it easier for the purified air to enter the room more quickly and evenly.

[0025] 3. The present invention achieves this by rotating the centrifugal fan and the purification intake fan, so that the purification intake fan drives the operation of the DC motor to generate DC power. When the DC power passes through the driving coil, it generates a magnetic field, and the driving coil and the driving magnet have the same magnetic poles at the opposite ends. When the driving coil generates the magnetic field, it pushes the driving magnet to drive the rotation of the epicyclic gear. At this time, the return spring is compressed. Through the above-mentioned technical means, the iris mechanism can be automatically opened during the operation of the air conditioner to filter the air. At the same time, when the air conditioner is not working, the iris mechanism will automatically close. As the power of the air conditioner increases, the speed of the centrifugal fan becomes higher and higher, and the repulsive force between the driving coil and the driving magnet will also become greater and greater, so that the degree of opening of the iris mechanism increases. In this way, the size of the air inlet is automatically adjusted according to actual needs, thereby adaptively adjusting the air intake volume. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The present invention will be further described below with reference to the accompanying drawings.

[0027] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0028] Figure 2 It is a structural diagram of the angle air supply module in the present invention;

[0029] Figure 3 This invention Figure 2 A schematic diagram of the partially enlarged structure at center A;

[0030] Figure 4 is a top cross-sectional view of the present invention;

[0031] Figure 5 It is a structural diagram of the iris mechanism of the present invention;

[0032] Figure 6 It is a structural diagram of the purification filter module in the present invention;

[0033] Figure 7 This is a schematic diagram of the positional relationship between the purification filter module and the installation slot in the present invention;

[0034] Figure 8 This is a schematic diagram of the installation position of the gas collecting hood in the present invention;

[0035] Figure 9 It is a structural schematic diagram of a purification and conveying mechanism in the present invention;

[0036] Figure 10 It is a structural diagram of another purification and conveying mechanism in the present invention;

[0037] Figure 11 It is a cross-sectional view of the blades of the centrifugal fan in the present invention.

[0038] Figure: 1. Main air box; 11. Air inlet duct; 12. Air outlet; 13. Air hood; 2. Angle air supply module; 21. Vertical wind direction adjustment mechanism; 211. Vertical adjustment plate; 212. First connecting rod; 22. Left and right wind direction adjustment mechanism; 221. Left and right adjustment plates; 222. Second connecting rod; 3. Centrifugal fan; 31. Ventilation plate; 32. Ventilation rod; 4. Purification air inlet box; 41. Mounting slot; 42. Purification air duct; 5. Purification air inlet fan; 6. Purification filter element Module; 61, purification mounting frame; 611, filter element mounting slot; 612, connecting slot; 613, connecting pipe; 62, filter element; 7, purification delivery mechanism; 71, purification delivery pipe; 8, iris mechanism; 81, iris splint; 811, iris clamping slot; 812, driving slide; 82, iris sealing piece; 83, sealing gear; 84, revolving gear; 85, driving mechanism; 851, driving magnet; 852, driving coil; 853, reset spring; 9, DC motor. DETAILED DESCRIPTION

[0039] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0040] To solve the technical problems raised in the present invention;

[0041] like Figures 1 to 4 As shown, the present invention provides a multi-angle purification and air supply device for a central air conditioner, comprising:

[0042] A main wind box 1, the upper end of which is connected to an air inlet pipe 11 communicating with the interior thereof, an air outlet 12 is provided at the front end of the main wind box 1, and an angled air supply module 2 is provided at the position of the air outlet 12;

[0043] a centrifugal fan 3, the centrifugal fan 3 being rotatably connected to the middle position of the main wind box 1, and the centrifugal fan 3 being cylindrical in shape as a whole;

[0044] The left side of the main air box 1 is fixedly connected to a purification air inlet box 4, the right side of the purification air inlet box 4 is communicated with the interior of the main air box 1, and the left side of the purification air inlet box 4 is fixedly connected to a purification air duct 42 communicated with the interior thereof;

[0045] A purification air intake fan 5, which is coaxially fixedly connected to the centrifugal fan 3 and is arranged in the purification air intake box 4;

[0046] The purification filter module 6 is arranged in the purification air inlet box 4 at a position on the left side of the purification air inlet fan 5.

[0047] It should be noted that during use, the centrifugal fan 3 is driven by the motor to rotate. During the rotation, the centrifugal fan 3 will inhale air from the air inlet pipe 11 and push the air out from the air outlet 12 under the action of centrifugal force. During the rotation, the centrifugal fan 3 will drive the rotation of the purification intake fan 5. During the rotation, the purification intake fan 5 will inhale air into the purification air inlet box 4 through the purification air duct 42 and push it into the main air box 1. When the air passes through the purification filter module 6, the purification filter module 6 will filter the air. , the filtered air will enter the main air box 1 from the purified air inlet box 4 and be released into the room under the promotion of the centrifugal fan 3. In the above technical solution, since the purification filter module 6 is arranged in the purified air inlet box 4, it will not affect the air passage in the main air box 1. In this way, not only will the purification filter module 6 itself not affect the circulation of air in the main air box 1, even if the filter element is clogged after long-term use, it will only affect the purification effect, and will not have any impact on the other functions of the central air conditioner, and will not cause an increase in energy consumption;

[0048] In the present invention, the direction of air supply from the air conditioner can be changed by the angle air supply module 2;

[0049] In addition, the relevant technical features of air conditioning, refrigeration and heating are all existing technologies.

[0050] like Figure 4 、 Figures 8 to 11 As shown, the left end of the main wind box 1 that is communicated with the purification air inlet box 4 is rotatably connected to an air collecting hood 13, and the air collecting hood 13 is fixedly connected to both the centrifugal fan 3 and the purification air inlet fan 5. The middle part of the air collecting hood 13 is processed into a hollow shape, and a purification conveying mechanism 7 is provided between the air collecting hood 13 and the rightmost side of the centrifugal fan 3.

[0051] It should be noted that, during use, since the axial length of the centrifugal fan 3 is often too long, when the purified air enters the main wind box 1 from the purification air inlet box 4, it is often difficult for it to be transported from the leftmost side of the main wind box 1 to the rightmost side of the main wind box 1. If the purified air can be transported from the leftmost side of the main wind box 1 to the rightmost side of the main wind box 1 and the uniform release of the purified air is guaranteed in this process, it will be beneficial for the purified air to be evenly released into the room, and the above-mentioned function will be completed by the purification and conveying mechanism 7 in this process.

[0052] like Figure 9As shown, the purification and conveying mechanism 7 includes a purification and conveying pipe 71, the two ends of which are fixedly connected to the rear side of the centrifugal fan 3 and the air collecting hood 13 respectively, and the conveying pipe surrounds the hollow position on the air collecting hood 13 inside, and the purification and conveying pipe 71 is evenly processed with through holes.

[0053] It should be noted that during the use of the present invention, the purified air is sucked into the purification delivery pipe 71, and under the constraint of the purification delivery pipe 71, it is evenly released into the centrifugal fan 3 through the through holes on the purification delivery pipe 71. In this way, the purified air can be released more evenly into the room, thereby improving the user experience.

[0054] like Figure 8 、 Figure 10 and Figure 11 As shown, the purification and conveying mechanism 7 includes a purification and conveying pipe 71, the two ends of which are fixedly connected to the rear end of the centrifugal fan 3 and the air collecting cover 13 respectively, and the conveying pipe surrounds the hollow position on the air collecting cover 13 inside, and the middle position of the centrifugal fan 3 is evenly distributed with ventilation plates 31 along its axial direction, and the ventilation plates 31 are fixedly connected to the blades of the centrifugal fan 3, and the ventilation plates 31 are fixedly connected to the purification and conveying pipe 71 through ventilation rods 32, and the blades, ventilation rods 32 and ventilation plates 31 of the centrifugal fan 3 are all machined with through grooves, and the centrifugal fan 3 is connected to the through grooves inside the outer tip part of its blades, so that the air flow can flow from the inside of the purification and conveying pipe 71 through the ventilation rods 32, the ventilation plates 31 and the blade part of the centrifugal fan 3 to the outside.

[0055] It should be noted that after the purified air enters the purification delivery pipe 71, it will enter the ventilation rod 32, the ventilation plate 31 and the blades of the centrifugal fan 3 from the purification delivery pipe 71, and finally be released into the room through the tip of the blades of the centrifugal fan 3. In this way, the purified air can be directly pushed into the room by the wind force generated by the centrifugal fan 3, which makes it easier for the purified air to enter the room more quickly and evenly.

[0056] like Figure 4 、 Figure 6 and Figure 7As shown in the figure, the purification filter module 6 comprises a purification mounting frame 61, the lower end of the purification air inlet box 4 is fixedly provided with a mounting groove 41, the purification mounting frame 61 is inserted into the purification air inlet box 4 through the mounting groove 41 and is fixed by bolts, the purification mounting frame 61 is uniformly provided with filter mounting grooves 611 around the central axis, the filter mounting grooves 611 are inserted with filters 62, the filter 62 is in U shape, and there is a gap between the side of the filter mounting groove 611 and the filter 62, and the filter 62 can be conveniently replaced and installed by installing the purification filter module 6 through the mounting groove 41.

[0057] It should be noted that when the filter 62 filters the air, the air enters from the right side of the filter 62 and passes through the side wall of the filter 62 from the inside of the filter 62 to finally realize the filtration of the air.

[0058] As shown in the figure, Figure 4 and Figure 6 As shown in the figure, the purification mounting frame 61 is provided with a communication groove 612 between two adjacent filter mounting grooves 611, the communication groove 612 is inserted with a communication pipe 613, and the two ends of the communication pipe 613 are fixedly connected with the left end of one of the two closest filter mounting grooves 611 and the right end of the other.

[0059] It should be noted that in this way, two filters 62 can be connected in series, thereby improving the degree of filtration of the filter 62 during filtration.

[0060] The filters 62 installed in two adjacent filter mounting grooves 611 can be one filter 62 and the other fragrance filter 62.

[0061] It should be noted that the above technical means can realize the function of fragrance while filtering.

[0062] As shown in the figure, Figure 4 and Figure 5 As shown in the figure, the purification air inlet box 4 is provided with an iris mechanism 8 on the left side of the purification filter module 6, the iris mechanism 8 comprises an iris clamping plate 81, the middle of the iris clamping plate 81 is through, the inner side of the iris clamping plate 81 is provided with an iris clamping groove 811, a plurality of iris closing pieces 82 are rotationally connected in the iris clamping plate 81, one closing gear 83 is fixedly connected with each rotationally connected part of the iris closing piece 82 and the iris clamping groove 811, a week gear 84 is rotationally connected in the iris clamping groove 811 and engages with all closing gears 83, and the iris clamping plate 81 is provided with a driving mechanism 85 for controlling the rotation of the week gear 84.

[0063] It should be noted that when the air conditioner or the purification function is not in use, excessive contact between the purification filter module 6 and the air should be avoided as much as possible to increase the service life of the filter element 62 in the purification filter module 6. In the present invention, the above function is achieved through the iris mechanism 8. During this process, the rotation of the epicyclic gear 84 is controlled by the driving mechanism 85. The epicyclic gear 84 will drive the rotation of the closing gear 83 during the rotation. The closing gear 83 will drive the rotation of the iris closing piece 82 during the rotation. The overall rotation of the iris closing piece 82 will control the circulation of the air duct.

[0064] like Figure 5 As shown, a DC motor 9 is provided on the fixed frame in the purification air inlet box 4, and the input shaft of the DC motor 9 is coaxially fixedly connected to the purification air inlet fan 5, and the driving mechanism 85 includes a driving magnet 851, a driving coil 852 and a return spring 853. A plurality of driving grooves 812 are evenly opened in the circumference of the iris splint 81, and the driving magnet 851 is fixedly connected to the epicyclic gear 84. A return spring 853 is provided between the driving magnet 851 of the driving groove 812, and the two ends of the return spring 853 are respectively fixedly connected to the driving magnet 851 and the bottom surface of the driving groove 812, and the other end of the driving groove 812 is provided with a driving coil 852 fixedly connected to the iris splint 81, and the two ends of the wire on the driving coil 852 are respectively connected to the two poles of the DC motor 9.

[0065] It should be noted that during the rotation of the centrifugal fan 3 and the purification intake fan 5, the purification intake fan 5 drives the operation of the DC motor 9 so that it generates DC power. When the DC power passes through the driving coil 852, a magnetic field is generated, and the magnetic poles of the driving coil 852 and the driving magnet 851 at the opposite ends are the same. When the driving coil 852 generates a magnetic field, it pushes the driving magnet 851 to drive the rotation of the epicyclic gear 84. At this time, the return spring 853 is compressed. Through the above-mentioned technical means, the iris mechanism 8 can be automatically opened during the operation of the air conditioner to filter the air. At the same time, when the air conditioner is not working, the iris mechanism 8 will automatically close. As the air conditioner power increases, the speed of the centrifugal fan 3 becomes higher and higher, and the repulsive force between the driving coil 852 and the driving magnet 851 will also become larger and larger, so that the degree of opening of the iris mechanism 8 increases. In this way, the size of the air inlet is automatically adjusted according to actual needs, thereby adaptively adjusting the air intake volume.

[0066] like Figure 1 、 Figure 2 and Figure 3As shown, the angle air supply module 2 comprises a vertical air direction adjusting mechanism 21 and a left-right air direction adjusting mechanism 22, the vertical air direction adjusting mechanism 21 comprises a vertical adjusting plate 211 and a first connecting rod 212, the vertical adjusting plate 211 is connected in parallel with the main air box 1 in the vertical direction at the position of the air outlet 12, and two adjacent vertical adjusting plates 211 are connected through the first connecting rod 212, the upper and lower ends of the first connecting rod 212 are respectively rotationally connected with the vertical adjusting plates 211 on the upper and lower sides thereof, the left-right air direction adjusting mechanism 22 comprises a left-right adjusting plate 221 and a second connecting rod 222, the left-right adjusting plate 221 is connected in parallel with the main air box 1 in the left-right direction, and the second connecting rod 222 is arranged between adjacent left-right adjusting plates 221, and the two sides of the second connecting rod 222 are rotationally connected with the left-right adjusting plates 221 on the left and right sides thereof.

[0067] It should be noted that when adjusting the air direction of the air conditioner, one of the vertical adjusting plates 211 or the left-right adjusting plates 221 can be driven to rotate by a driving device such as a motor, and in the process of rotation, all the vertical adjusting plates 211 or all the left-right adjusting plates 221 can be linked to adjust the air flow in the up, down, left and right directions through the connection of the first connecting rod 212 or the second connecting rod 222.

[0068] In the description of the present application, it should be understood that the terms "up", "down", "left", "right", etc. indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation and a particular orientation configuration and operation, therefore, it cannot be understood as a limitation on the present application. In addition, "first", "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features limited by "first", "second" can explicitly or implicitly include one or more features. In the description of the present application, unless otherwise specified, the meaning of "a plurality of" is two or more.

[0069] In the description of the present application, it should be noted that, unless otherwise specified and limited, the terms "mounting", "connecting", "connecting" and the like should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium, or it can be the communication between two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0070] The above is a detailed description of an embodiment of the present invention. However, the content described is only a preferred embodiment of the present invention and should not be considered to limit the scope of the present invention. All equivalent changes and improvements made within the scope of the present invention should still fall within the scope of the patent coverage of the present invention.

Claims

1. A multi-angle purification air supply device for central air conditioning, characterized in that: include: A main wind box (1), wherein the upper end of the main wind box (1) is connected to an air inlet pipe (11) communicating with the interior thereof, an air outlet (12) is provided at the front end of the main wind box (1), and an angled air supply module (2) is provided at the position of the air outlet (12); a centrifugal fan (3), the centrifugal fan (3) being rotatably connected to a middle position of the main wind box (1), and the centrifugal fan (3) being cylindrical in shape as a whole; The left side of the main air box (1) is fixedly connected to a purification air inlet box (4), the right side of the purification air inlet box (4) is in communication with the interior of the main air box (1), and the left side of the purification air inlet box (4) is fixedly connected to a purification air duct (42) in communication with the interior thereof; a purification air intake fan (5), the purification air intake fan (5) being coaxially fixedly connected to the centrifugal fan (3) and being arranged in the purification air intake box (4); A purification filter module (6), the purification filter module (6) being arranged in the purification air inlet box (4) at a position on the left side of the purification air inlet fan (5); An end of the left side of the main air box (1) that is in communication with the purification air inlet box (4) is rotatably connected to an air collecting hood (13), the air collecting hood (13) is fixedly connected to both the centrifugal fan (3) and the purification air inlet fan (5), the middle portion of the air collecting hood (13) is processed into a hollow shape, and a purification conveying mechanism (7) is provided between the air collecting hood (13) and the rightmost side of the centrifugal fan (3); The purification filter element module (6) includes a purification mounting frame (61), a mounting groove (41) is fixedly mounted on the lower end of the purification air inlet box (4), the purification mounting frame (61) is inserted into the purification air inlet box (4) through the mounting groove (41) and fixed by bolts, the purification mounting frame (61) is uniformly provided with filter element mounting grooves (611) around its central axis, a filter element (62) is inserted into the filter element mounting groove (611), the filter element (62) is U-shaped, and a gap is left between the side of the filter element mounting groove (611) and the filter element (62), and the way of installing the purification filter element module (6) through the mounting groove (41) can facilitate the replacement and installation of the filter element (62); The purification air inlet box (4) is provided with an iris mechanism (8) on the left side of the purification filter module (6), and the iris mechanism (8) includes an iris clamp (81), the middle of the iris clamp (81) is through-shaped, and an iris clamp groove (811) is provided on the inner side of the iris clamp (81), and a plurality of iris sealing pieces (82) are circumferentially connected to the iris clamp (81), and a closed gear (83) is fixedly connected to the rotation connection between each iris sealing piece (82) and the iris clamp groove (811), and a revolving gear (84) meshing with all the revolving gears (83) is rotatably connected to the iris clamp groove (811), and a driving mechanism (85) for controlling the rotation of the revolving gear (84) is provided in the iris clamp (81); A DC motor (9) is provided on the fixed frame in the purification air inlet box (4), and the input shaft of the DC motor (9) is coaxially fixedly connected to the purification air inlet fan (5). The driving mechanism (85) includes a driving magnet (851), a driving coil (852) and a return spring (853). A plurality of driving grooves (812) are evenly arranged in the circumferential direction in the iris clamp (81). The driving magnet (851) and the revolving gear (84) are fixedly connected. A return spring (853) is provided between the driving groove (812) and the driving magnet (851). The two ends of the return spring (853) are respectively fixedly connected to the driving magnet (851) and the bottom surface of the driving groove (812). The other end of the driving groove (812) is provided with a driving coil (852) fixedly connected to the iris clamp (81). The two ends of the wire on the driving coil (852) are respectively connected to the two poles of the DC motor (9).

2. A multi-angle purification and air supply device for central air conditioning according to claim 1, characterized in that: The purification conveying mechanism (7) comprises a purification conveying pipe (71), the two ends of which are fixedly connected to the rear end of the centrifugal fan (3) and the air collecting hood (13), respectively, and the conveying pipe surrounds the hollowed-out position on the air collecting hood (13) inside, and the purification conveying pipe (71) is uniformly processed with through holes.

3. The multi-angle purification and air supply device for central air conditioning according to claim 1, characterized in that: The purification conveying mechanism (7) includes a purification conveying pipe (71), the two ends of which are fixedly connected to the rear end of the centrifugal fan (3) and the air collecting cover (13), respectively, and the conveying pipe surrounds the hollow position on the air collecting cover (13) inside. A ventilation plate (31) is evenly distributed along the axial direction of the middle position of the centrifugal fan (3), and the ventilation plate (31) is fixedly connected to the blades of the centrifugal fan (3). The ventilation plate (31) and the purification conveying pipe (71) are fixedly connected through a ventilation rod (32). The blades, ventilation rod (32) and ventilation plate (31) of the centrifugal fan (3) are all processed with through grooves inside. The centrifugal fan (3) communicates with the through groove inside the blades through the outer tip part of the blades, so that the air flow can flow from the inside of the purification conveying pipe (71) through the ventilation rod (32), the ventilation plate (31) and the blade part of the centrifugal fan (3) to the outside.

4. The multi-angle purification and air supply device for central air conditioning according to claim 1, characterized in that: The purification mounting frame (61) is provided with a communication groove (612) between two adjacent filter element mounting grooves (611), a communication pipe (613) is inserted into the communication groove (612), and the two ends of the communication pipe (613) are respectively fixedly connected to the left end of one of the two closest filter element mounting grooves (611) and the right end of the other.

5. The multi-angle purification and air supply device for central air conditioning according to claim 4, characterized in that: One of the filter cartridges (62) installed in the two adjacent filter cartridge installation slots (611) is a filter cartridge (62) and the other is a fragrance cartridge (62).

6. The multi-angle purification and air supply device for central air conditioning according to claim 1, characterized in that: The angle air supply module (2) comprises a vertical wind direction adjustment mechanism (21) and a left-right wind direction adjustment mechanism (22), wherein the vertical wind direction adjustment mechanism (21) comprises a vertical adjustment plate (211) and a first connecting rod (212), wherein a plurality of vertical adjustment plates (211) are connected in parallel with the main wind box (1) at the position of the air outlet (12) in the vertical direction, and two adjacent vertical adjustment plates (211) are connected by the first connecting rod (212), wherein the upper end of the first connecting rod (212) is connected to the left-right wind direction adjustment mechanism (212). The lower ends are respectively rotatably connected to the vertical adjustment plates (211) on the upper and lower sides thereof; the left and right wind direction adjustment mechanism (22) comprises left and right adjustment plates (221) and a second connecting rod (222); a plurality of left and right adjustment plates (221) are connected in parallel with the main wind box (1) along the left and right directions; the second connecting rod (222) is arranged between adjacent left and right adjustment plates (221), and both sides of the second connecting rod (222) are rotatably connected to the left and right adjustment plates (221) on the left and right sides thereof.

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