Multi-angle purification air supply device for central air conditioner

Abstract

The invention 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 bellow, the upper end of the main air bellow is connected with an air inlet pipe communicated with the interior of the air direction, the front end of the main air bellow is provided with an air outlet, and an angle air supply module is arranged at the position of the air outlet. A centrifugal fan is rotatably connected to the middle of the main air box, a purification air inlet box is fixedly connected to the left side face of the main air box, the right side of the purification air inlet box communicates with the interior of the main air box, and a purification air pipe communicating with the interior of the purification air inlet box is fixedly connected to the left side face of the purification air inlet box; and a purification filter element module is arranged at the position, located on the left side of the purification air inlet fan, in the purification air inlet box, so that a main ventilation air path of the air conditioner cannot be hindered.

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 a central air conditioning. Background Art

[0002] Central air conditioning is an air conditioning system that generates cold (heat) sources through an outdoor unit and provides cooling (heating) services to each room. Depending on the place of use, it can be divided into two categories: household central air conditioning and commercial central air conditioning. Household central air conditioning is mainly suitable for small places such as homes, while commercial central air conditioning is widely used in large commercial places such as shopping malls, office buildings, etc.

[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, and thus the requirements for the air quality of the home environment are also getting higher and higher. Therefore, many families now often have air purifiers at home, 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, indirectly protecting the environment, and reducing the cost spent by the family in the process of 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, but the traditional practice is often to directly install filter element structures in the air supply ducts. 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 a 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 by 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, wherein the upper end of the main wind box 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 angle air supply module is provided at the position of the air outlet;

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

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

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

[0012] A purification filter element 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 wind 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 arranged 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 inside, and the centrifugal fan is connected to the through grooves inside 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.

[0016] It should be further explained that the purification filter element module includes a purification mounting frame, 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, and 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 both 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 clamping plate, the middle of the iris clamping plate is through-shaped, and an iris clamping groove is provided on the inner side of the iris clamping plate, and a plurality of iris closing plates are circumferentially rotatably connected in the iris clamping plate, and a closing gear is fixedly connected at the rotating connection between each iris closing plate and the iris clamping groove, and a circulating gear meshing with all the circulating gears is rotatably connected in the iris clamping groove, and a driving mechanism for controlling the rotation of the circulating gear is provided in the iris clamping plate.

[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, the driving mechanism includes a driving magnet, a driving coil and a reset spring, a plurality of driving grooves are evenly opened in the circumference of the iris clamp, the driving magnet and the revolving gear are fixedly connected, a reset spring is arranged between the driving groove and the driving magnet, the two ends of the reset spring are respectively fixedly connected to the driving magnet and the bottom surface of the driving groove, the other end of the driving groove is provided with a driving coil fixedly connected to the iris clamp, 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-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 a plurality of directions, and two adjacent vertical adjustment plates are connected by a first connecting rod, the upper and lower ends of the first connecting rod are rotatably connected to the vertical adjustment plates on its upper and lower sides respectively, the left-right wind direction adjustment mechanism includes left-right adjustment plates and a second connecting rod, the left-right adjustment plates are connected in parallel with the main wind box in a plurality of directions, the second connecting rod is arranged between adjacent left-right adjustment plates, and the two sides of the second connecting rod are rotatably connected to the left-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. According to the present invention, after the purified air enters the purification delivery pipe, it will enter the ventilation rod, ventilation plate and blades of the centrifugal fan from the purification delivery pipe, and finally be released into the room through the tip part 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 making the centrifugal fan and the purification intake fan rotate, so that the purification intake fan drives the DC motor to generate DC power. When the DC power passes through the driving coil, a magnetic field is generated, and the magnetic poles of the driving coil and the driving magnet at the opposite ends are the same. When the driving coil generates a magnetic field, it pushes the driving magnet to drive the rotation of the epicyclic gear. At this time, the reset 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, 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 in conjunction with 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 schematic diagram of the angle air supply module in the present invention;

[0029] Figure 3 The present 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 is a schematic diagram of the structure of the iris mechanism of the present invention;

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

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

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

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

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

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

[0038] In the figure: 1. main wind box; 11. air inlet pipe; 12. air outlet; 13. air collecting 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. installation 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 clamp; 811, iris clamp 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 be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0040] To solve the technical problems proposed 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, 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 angle air supply module 2 is provided at the position of the air outlet 12;

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

[0044] The left side of the main wind box 1 is fixedly connected with a purification air inlet box 4, the right side of the purification air inlet box 4 is communicated with the interior of the main wind box 1, and the left side of the purification air inlet box 4 is fixedly connected with 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 element 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. The centrifugal fan 3 will inhale air from the air inlet pipe 11 during the rotation, and push the air out from the air outlet 12 under the action of centrifugal force. The centrifugal fan 3 will drive the rotation of the purification air intake fan 5 during the rotation. The purification air intake fan 5 will inhale air into the purification air inlet box 4 through the purification air duct 42 during the rotation, 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 wind box 1 from the purification air inlet box 4, and will be released into the room under the impetus of the centrifugal fan 3. In the above technical solution, since the purification filter element module 6 is arranged in the purification air inlet box 4, it will not affect the air passage in the main wind box 1. In this way, not only will the purification filter element module 6 itself not affect the circulation of air in the main wind box 1, even if the filter element is blocked 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;

[0048] In the present invention, the direction of air supply of 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 related to the existing technology.

[0050] like Figure 4 , Figures 8 to 11 As shown, an air collecting hood 13 is rotatably connected to one end of the left side of the main wind box 1 that is communicated with the purification air inlet box 4. 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 arranged 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 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 during this process, it will be beneficial for the purified air to be uniformly released into the room. In this process, the above-mentioned function is completed by the purification and conveying mechanism 7.

[0052] like Fig. 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 restraining effect 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 , Fig.10 and Fig.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 side 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 a ventilation plate 31 along its axial direction, and the ventilation plate 31 is fixedly connected to the blades of the centrifugal fan 3, and the ventilation plate 31 is fixedly connected to the purification and conveying pipe 71 through a ventilation rod 32, and the blades of the centrifugal fan 3, the ventilation rod 32 and the ventilation plate 31 are all processed with through grooves inside, and the centrifugal fan 3 is connected with the through groove inside through the outer tip part of its blade, so that the airflow can flow from the inside of the purification and conveying pipe 71 through the ventilation rod 32, the ventilation plate 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 part 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, the purification filter element module 6 includes a purification mounting frame 61, and a mounting groove 41 is fixedly installed at 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 circumferentially evenly provided with filter element mounting grooves 611 around its central axis, and 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. The method of installing the purification filter element module 6 through the mounting groove 41 can facilitate the replacement and installation of the filter element 62.

[0057] It should be noted that when the air is filtered through the filter element 62, the air enters from the right side of the filter element 62 and passes through the side wall of the filter element 62 from the inside of the filter element 62, thereby finally achieving air filtering.

[0058] like Figure 4 and Figure 6 As shown, the purification mounting frame 61 is provided with a connecting groove 612 between two adjacent filter element mounting grooves 611, a connecting pipe 613 is inserted into the connecting groove 612, and both ends of the connecting 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.

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

[0060] One of the filter elements 62 installed in two adjacent filter element installation slots 611 may be a filtration filter element 62 and the other may be a fragrance filter element 62 .

[0061] It should be noted that the above-mentioned technical means enable the function of fragrance to be achieved while filtering.

[0062] like Figure 4 and Figure 5 As shown, 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 splint 81, the middle of the iris splint 81 is through-shaped, and an iris clamping groove 811 is provided on the inner side of the iris splint 81, and a plurality of iris closing plates 82 are circumferentially rotatably connected in the iris splint 81, and a closing gear 83 is fixedly connected at the rotational connection between each iris closing plate 82 and the iris clamping groove 811, and a circulating gear 84 meshing with all the circulating gears 83 is rotatably connected in the iris clamping groove 811, and a driving mechanism 85 for controlling the rotation of the circulating gear 84 is provided in the iris splint 81.

[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 circulating gear 84 is controlled by the driving mechanism 85. The circulating 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 plate 82 during the rotation. The overall rotation of the iris closing plate 82 will control the circulation of the air duct.

[0064] like Figure 5 As shown, a DC motor 9 is provided on a 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 reset spring 853. A plurality of driving grooves 812 are evenly arranged in the circumferential direction in the iris clamp 81, and the driving magnet 851 is fixedly connected to the epicyclic gear 84. A reset spring 853 is provided between the driving magnet 851 of the driving groove 812, and the two ends of the reset 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 clamp 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 will be 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 will push the driving magnet 851 to drive the rotation of the revolving gear 84. At this time, the reset 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 power of the air conditioner 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 includes a vertical wind direction adjustment mechanism 21 and a left and right wind direction adjustment mechanism 22, the vertical wind direction adjustment mechanism 21 includes a vertical adjustment plate 211 and a first connecting rod 212, the 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, the upper and lower ends of the first connecting rod 212 are rotatably connected to the vertical adjustment plates 211 on the upper and lower sides thereof, respectively, the left and right wind direction adjustment mechanism 22 includes a left and right adjustment plate 221 and a second connecting rod 222, the left and right adjustment plates 221 are connected in parallel with the main wind box 1 in the left and right direction, the second connecting rod 222 is arranged between adjacent left and right adjustment plates 221, and the two 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.

[0067] It should be noted that when adjusting the air-conditioning wind direction, a driving device such as a motor can be used to drive the rotation of one of the vertical adjustment plates 211 or the left and right adjustment plates 221. During the rotation of the vertical adjustment plate 211 or the left and right adjustment plate 221, through the connection of the first connecting rod 212 or the second connecting rod 222, all the vertical adjustment plates 211 or all the left and right adjustment plates 221 can be linked, thereby being able to adjust the air flow direction in four directions of up, down, left and right.

[0068] In the description of the present invention, it should be understood that the terms "upper", "lower", "left", "right", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction and a specific direction structure and operation, and therefore, cannot be understood as a limitation on the present invention. In addition, "first" and "second" are only for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0069] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", etc. should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0070] The above is a detailed description of an embodiment of the present invention, but the content is only a preferred embodiment of the present invention and cannot be considered to limit the scope of implementation 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, the front end of the main wind box (1) is provided with an air outlet (12), and an angle air supply module (2) is arranged 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 wind 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 wind 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) is coaxially fixedly connected to the centrifugal fan (3) and is arranged in the purification air intake box (4); A purification filter element module (6), wherein the purification filter element 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).

2. A multi-angle purification and air supply device for central air conditioning according to claim 1, characterized in that: An end of the left side of the main wind 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).

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

4. The multi-angle purification and air supply device for central air conditioning according to claim 2, characterized in that: The purification and conveying mechanism (7) comprises 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 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 in the middle position of the centrifugal fan (3). The ventilation plate (31) is fixedly connected to the blades of the centrifugal fan (3). The ventilation plate (31) and the purification and 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 and conveying pipe (71) through the ventilation rod (32), the ventilation plate (31) and the blade part of the centrifugal fan (3) to the outside.

5. The multi-angle purification and air supply device for central air conditioning according to claim 2, characterized in that: The purification filter element module (6) comprises a purification mounting frame (61), a mounting groove (41) is fixedly mounted at 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 is 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 purification filter element module (6) is installed through the mounting groove (41) so that the filter element (62) can be easily replaced and installed.

6. A multi-angle purification and air supply device for central air conditioning according to claim 5, characterized in that: The purification mounting frame (61) is provided with a connecting groove (612) between two adjacent filter element mounting grooves (611), a connecting pipe (613) is inserted into the connecting groove (612), and two ends of the connecting 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.

7. A multi-angle purification and air supply device for central air conditioning according to claim 6, characterized in that: One of the filter cartridges (62) installed in two adjacent filter cartridge installation slots (611) may be a filtration filter cartridge (62) and the other may be a fragrance filter cartridge (62).

8. The multi-angle purification and air supply device for central air conditioning according to claim 5, characterized in that: 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 plates (82) are circumferentially rotatably connected in the iris clamp (81), and a closed gear (83) is fixedly connected at the rotational connection between each iris sealing plate (82) and the iris clamp groove (811), and a revolving gear (84) meshing with all the revolving gears (83) is rotatably connected in 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).

9. The multi-angle purification and air supply device for central air conditioning according to claim 8, characterized in that: A DC motor (9) is provided on a fixed frame in the purification air inlet box (4); the input shaft of the DC motor (9) is coaxially fixedly connected to the purification air inlet fan (5); the driving mechanism (85) comprises 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); 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); and two ends of the wire on the driving coil (852) are respectively connected to the two poles of the DC motor (9).

10. 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 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 the two 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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