An air conditioner blower

Abstract

The present application relates to the technical field of air conditioners, and specifically discloses an air conditioner blower, which includes a volute, an air duct, and an air volume distribution system. The volute is located on one side of the air volume distribution system. The air inlet of the air volume distribution system opens upward, and the air inlet of the air volume distribution system is located on the other side adjacent to the side where the volute is located. The air duct is located between the volute and the air volume distribution system, and communicates the air outlet of the volute and the air inlet of the air volume distribution system. At least part of the air outlet of the volute is on the same side of the plane where the air inlet of the air volume distribution system is located as the air volume distribution system, and the center of the volute and the air volume distribution system are on opposite sides of the plane where the air inlet of the air volume distribution system is located. After the blower is installed in the vehicle body, the height of the upper side of the volute protruding relative to the air volume distribution system is reduced, and the space occupied by the upper side of the volute is reduced. The present application improves the problem that is not conducive to the installation of other components in the vehicle body.

Description

Technical Field

[0001] This application relates to the technical field of air conditioners, and particularly to an air conditioner blower. Background Art

[0002] An automotive air conditioning system is often installed inside a vehicle to cool the air inside the compartment. When cooling the inside of the compartment, it is often necessary to use an air conditioner blower to send the cold air in the evaporator into the vehicle.

[0003] The existing automotive air conditioner blower includes an air inlet box, a volute, and an air volume distribution system. The air outlet of the air inlet box is connected to the volute. A blower motor is fixedly installed on the outer shell of the volute. A impeller is fixedly connected to the output shaft of the blower motor. The impeller is located inside the volute. The volute is connected to an air duct. One end of the air duct far from the volute is connected to the air volume distribution system.

[0004] The installation space inside the vehicle is relatively limited, and there are many structures to be installed. After installing the blower inside the vehicle body, the height of the upper side of the volute protruding relative to the air volume distribution system is relatively large, resulting in a large space occupied by the blower and being unfavorable for the installation of other components inside the vehicle body. Summary of the Invention

[0005] In order to improve the problem that is unfavorable for the installation of other components inside the vehicle body, this application provides an air conditioner blower.

[0006] An air conditioner blower provided by this application adopts the following technical solution:

[0007] An air conditioner blower includes a volute, an air duct, and an air volume distribution system. The volute is located on one side of the air volume distribution system. The air inlet of the air volume distribution system is located on the other side adjacent to the side where the volute is located. The air duct is located between the volute and the air volume distribution system, connecting the air outlet of the volute and the air inlet of the air volume distribution system. At least part of the air outlet of the volute is on the same side as the air volume distribution system in the plane where the air inlet of the air volume distribution system is located, and the center of the volute and the air volume distribution system are on opposite sides of the plane where the air inlet of the air volume distribution system is located.

[0008] By adopting the above technical solution, after installing the blower inside the vehicle body, at least part of the air outlet of the volute is on the same side as the air volume distribution system in the plane where the air inlet of the air volume distribution system is located, reducing the height of the upper side of the volute protruding relative to the air volume distribution system, reducing the space occupied by the upper side of the volute, improving the utilization of the space under the volute, thereby reducing the space occupied by the air conditioner blower and overall improving the problem that is unfavorable for the installation of other components inside the vehicle body.

[0009] Optionally, the air duct includes a first half shell and a second half shell, the openings of the first half shell and the second half shell are arranged relative to each other to form an air duct, and the first half shell and the second half shell are connected by a snap-fit assembly.

[0010] By adopting the above technical solution, the first half shell and the second half shell are spliced together, so that the installation of the air duct pipe can be completed, which makes it convenient for the operator to install and disassemble the air duct pipe.

[0011] Optionally, the snap-fit assembly includes an elastic ring and a clamping block, the elastic ring is connected to the first half shell, the clamping block is connected to the second half shell, the clamping block is located inside the elastic ring, and the side of the clamping block away from the first half shell abuts against the inner side of the elastic ring.

[0012] By adopting the above technical solution, the clamping block is clamped with the elastic ring, which can reduce the separation between the first half shell and the second half shell and improve the stability of the connection between the first half shell and the second half shell.

[0013] Optionally, the distance between the second half shell and a side of the clamping block away from the second half shell gradually increases from the first half shell toward the second half shell.

[0014] By adopting the above technical solution, when the first half shell and the second half shell approach each other, the elastic ring and the side of the clamping block away from the second half shell are abutted against each other, and the first half shell and the second half shell are continued to be controlled to approach each other. Driven by the clamping block, the elastic ring is elastically deformed and moves away from the second half shell. When the first half shell and the second half shell are closed, the elastic ring recovers its deformation and is sleeved on the clamping block, thereby realizing the clamping connection between the elastic ring and the clamping block more conveniently.

[0015] Optionally, a slot is provided on the side wall of the second half shell close to the first half shell, and an insert plate is provided on the side wall of the first half shell facing the second half shell. The insert plate is arranged along the extension direction of the second half shell and is located in the slot.

[0016] By adopting the above technical solution, the plug plate and the card slot cooperate to guide the splicing between the first half shell and the second half shell. When the plug plate is inserted into the card slot, the splicing between the first half shell and the second half shell is more conveniently achieved.

[0017] Optionally, an air guide protrusion is provided on the inner wall of the air duct pipe in an area opposite to the air inlet of the air volume distribution system, and the air guide protrusion is used to guide the airflow in the air duct pipe to the air inlet of the air volume distribution system.

[0018] By adopting the above technical solution, when the airflow in the air duct moves along the air duct, the air guide protrusion contacts the airflow, and can guide the airflow so that the airflow flows to the component distribution system.

[0019] Optionally, the distance between the side of the air guiding protrusion close to the volute and the air inlet of the air volume distribution system gradually decreases in the direction from the volute towards the air guiding protrusion.

[0020] By adopting the above technical solution, after the air flow abuts against the side of the air guiding protrusion close to the volute, the air flow flows along the side of the air guiding protrusion close to the volute, thereby guiding the air flow.

[0021] Optionally, the air inlet box is provided with a first air inlet and a second air inlet, and a switch member is arranged in the air inlet box, and the switch member is used to control the opening and closing of the first air inlet and the second air inlet.

[0022] By adopting the above technical solution, controlling the opening and closing of the first air inlet and the second air inlet by the switch member can change the air intake mode of the air inlet box.

[0023] Optionally, a jack is arranged on the side wall of the air inlet box adjacent to the volute, the jack is used for inserting a filter element, and a cover plate for closing the jack is detachably installed on the air inlet box.

[0024] By adopting the above technical solution, after the filter element is inserted into the jack, the gas entering the volute can be filtered, and at the same time, by controlling the closing of the jack by the cover plate, the detachment of the filter element can be reduced.

[0025] In summary, the present application includes at least one of the following beneficial technical effects:

[0026] 1. By arranging the air duct and the volute tongue on the lower side of the volute, after installing the blower in the vehicle body, the utilization of the space on the lower side of the volute is improved, the space occupied on the upper side of the volute is reduced, thereby reducing the volume occupied by the air-conditioning blower, and overall improving the problem that the air-conditioning blower is prone to interference with other components in the vehicle body;

[0027] 2. The clamping block is clamped with the elastic ring, which can reduce the separation between the first half shell and the second half shell, and improve the connection stability between the first half shell and the second half shell;

[0028] 3. After the filter element is inserted into the jack, the gas entering the volute can be filtered, and at the same time, by controlling the closing of the jack by the cover plate, the detachment of the filter element can be reduced. Description of the Drawings

[0029] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the drawings in the following description are only some embodiments of the present application. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0030] Figure 1 is a schematic structural view of an air conditioner blower in the related art;

[0031] Figure 2 is a schematic view of the overall structure of an embodiment of the present application;

[0032] Figure 3 is a partial structural view for showing the connection of the air duct pipe of the present application;

[0033] Figure 4 is a partial structural view for showing the installation of the wind guiding protrusion;

[0034] Figure 5 is Figure 3 an enlarged view of part A in

[0035] Figure 6 is a partial structural view for showing the connection inside the air inlet box;

[0036] Figure 7 is a partial structural view for showing the connection of the cover plate;

[0037] Figure 8 is Figure 7 an enlarged view of part B in

[0038] Figure 9 is a schematic view for showing the connection of the cable cylinder;

[0039] Figure 10 is a partial structural view for showing the installation of the gas flow rate sensor.

[0040] Reference numerals: 1, air inlet box; 11, first air inlet; 12, second air inlet; 13, switch member; 14, arc section; 15, sealing edge; 16, filtering section; 161, jack; 162, support ring; 163, slot; 17, fixing ring; 171, positioning groove; 18, clamping ring; 2, volute; 21, third half shell; 22, fourth half shell; 3, volute tongue; 4, air duct pipe; 41, first half shell; 411, insertion plate; 412, wind guiding protrusion; 413, curved surface section; 414, installation box; 415, installation opening; 42, second half shell; 421, clamping groove; 422, support screw; 423, support plate; 424, guiding column; 5, air volume distribution system; 51, evaporator; 52, air inlet; 6, blower motor; 7, cover plate; 71, fixing groove; 72, positioning rod; 73, clamping plate; 731, clamping block; 8, clamping component; 81, clamping seat; 82, clamping rod; 83, elastic ring; 84, clamping block; 9, cable cylinder; 91, mounting plate; 92, first elastic card; 93, second elastic card; 10, gas flow rate sensor. Detailed implementation manners

[0041] The following will further elaborate on this application in conjunction with the attached Figure 1-10 drawings.

[0042] Figure 1 FIG. 1 is a schematic structural diagram of an air-conditioning blower in the related art. The air-conditioning blower includes a volute 2, an air duct 4, and an air volume distribution system 5. The volute 2 is located on one side of the distribution system. The air inlet 52 of the air volume distribution system 5 opens upward. The air inlet 52 of the air volume distribution system 5 is located on the other side adjacent to the side where the volute 2 is located. The air duct 4 is located between the volute 2 and the air volume distribution system 5, connecting the air outlet of the volute 2 and the air inlet 52 of the air volume distribution system 5. The center of the volute 2 and the air volume distribution system 5 are on opposite sides of the plane where the air inlet 52 of the air volume distribution system 5 is located. Taking the illustrated angle as an example, the dotted line in the figure represents the plane where the air inlet 52 of the air volume distribution system 5 is located. The spiral direction of the volute 2 is clockwise. The height by which the upper side of the volute 2 protrudes relative to the plane where the air inlet 52 of the air volume distribution system 5 is located is relatively high, resulting in a large space occupied by the upper side of the volute 2, which is not conducive to the installation of other components in the vehicle body.

[0043] An embodiment of this application discloses an air-conditioning blower. Referring to Figure 2 , Figure 3 and Figure 4 , the air-conditioning blower includes a volute 2, an air duct 4, and an air volume distribution system 5. The air volume distribution system 5 includes a housing and functional components located inside the housing. Exemplarily, the functional components may include an evaporator 51. The housing has an air inlet 52, and the evaporator 51 may be located at the air inlet 52.

[0044] The volute 2 is located on one side of the air volume distribution system 5. The air inlet 52 of the air volume distribution system 5 opens upward, and the air inlet 52 of the air volume distribution system 5 is located on the other side adjacent to the side where the volute 2 is located. The air duct 4 is located between the volute 2 and the air volume distribution system 5, connecting the air outlet of the volute 2 and the air inlet 52 of the air volume distribution system 5. At least part of the air outlet of the volute 2 is on the same side of the plane where the air inlet 52 of the air volume distribution system 5 is located as the air volume distribution system 5. Figure 4 The dotted line in represents the plane where the air inlet 52 of the air volume distribution system 5 is located. The center of the volute 2 and the air volume distribution system 5 are on opposite sides of the plane where the air inlet 52 of the air volume distribution system 5 is located. After installing the blower in the vehicle body, the height by which the upper side of the volute 2 protrudes relative to the air volume distribution system 5 is reduced, the space occupied by the upper side of the volute 2 is decreased, the utilization of the space below the volute 2 is improved, thereby reducing the volume occupied by the air-conditioning blower and overall improving the problem that is not conducive to the installation of other components in the vehicle body.

[0045] After the air-conditioning blower is installed in the vehicle body, a blower motor 6 is fixedly installed on the side of the volute 2 away from the air inlet box 1 by bolts. The axis of the blower motor 6 is coaxial with the axis of the volute 2. Looking at the volute 2 from the blower motor 6, the volute 2 rotates counterclockwise. The volute 2 has a volute tongue 3, and the volute tongue 3 is welded at a position slightly below the volute 2, so that the space occupied by the volute 2 upwards is reduced.

[0046] Referring to Figure 2 、 Figure 5 and Figure 6 , the air inlet box 1 is provided with a first air inlet 11 and a second air inlet 12, and a switching member 13 is provided in the air inlet box 1. The air inlet box 1 has an arc section 14. The first air inlet 11 is located on the upper side of the arc section 14, and the second air inlet 12 is located on the arc side wall of the arc section 14. The switching member 13 is a baffle rotatably connected in the air inlet box 1. The rotation axis of the baffle is consistent with the axis of the arc section 14. A sealing edge 15 is convexly welded on the inner side wall of the air inlet box 1 around the first air inlet 11 and the second air inlet 12. A rotation motor is fixedly installed on the housing of the air inlet box 1. The baffle is connected to the output shaft of the rotation motor. By controlling the rotation motor, the automatic rotation of the baffle can be controlled, so as to realize the automatic control of the opening and closing of the first air inlet 11 and the second air inlet 12.

[0047] When the baffle is rotated and the baffle is aligned with the first air inlet 11, the baffle can abut against the sealing edge 15 around the first air inlet 11, so as to seal the first air inlet 11 and keep the second air inlet 12 open. The air inlet box 1 intakes air from the second air inlet 12. Controlling the rotation of the baffle and making the baffle abut against the sealing edge 15 around the second air inlet 12 can make the baffle seal the second air inlet 12, so as to control the closing of the second air inlet 12 and make the air inlet box 1 intake air from the first air inlet 11. The first air inlet 11 and the second air inlet 12 can be respectively connected to external gas and internal gas. By controlling the closing of the first air inlet 11 and the second air inlet 12, the air intake mode of the air inlet box 1 can be controlled.

[0048] The air inlet box 1 further includes a filter section 16. The filter section 16 communicates with the arc section 14 and the volute 2. A jack 161 is opened on the side wall of the filter section 16. Two support rings 162 are coaxially welded inside the filter section 16. The jack 161 is located between the two support rings 162, and a slot 163 is formed between the two support rings 162. After the operator inserts the rectangular filter element into the jack 161, the filter element is inserted into the slot 163, thus realizing the plug-in installation of the filter element.

[0049] Referring to Figure 6 、 Figure 7 and Figure 8A cover plate 7 for controlling the opening and closing of the slot 163 is also installed on the filter section 16. An annular fixing groove 71 is provided on the side of the cover plate 7 close to the filter section 16. A fixing ring 17 is welded on the outer wall of the filter section 16. The fixing ring 17 is arranged around the insertion hole 161, and the fixing ring 17 is plugged and adapted to the fixing groove 71. A rubber sealing gasket is bonded to the fixing groove 71. When the cover plate 7 is partially inserted into the insertion hole 161, the fixing ring 17 is inserted into the fixing groove 71, which can block the cover plate 7 from continuing to be inserted into the insertion hole 161.

[0050] A positioning rod 72 is integrally cast vertically on one side of the cover plate 7 near the filter section 16, and a positioning groove 171 is provided on the inner side wall of the fixing ring 17 to match the positioning rod 72. By inserting the positioning rod 72 into the positioning groove 171, the cover plate 7 can be initially positioned, which facilitates alignment of the cover plate 7.

[0051] A snap ring 18 is welded to the outer wall of the filter section 16. Two snap rings 18 are provided, one corresponding to each other on opposite sides of the insertion hole 161. Snap plates 73 are integrally cast on opposite sides of the cover plate 7. The snap plates 73 are elastic, and the planes on which the snap plates 73 and the snap rings 18 lie are parallel. The two snap plates 73 are located between the two snap rings 18. The snap plates 73 are elastic, and a snap block 731 is welded on the side of the two snap plates 73 facing away from each other. The snap block 731 is located on the side of the snap plate 73 that is closer to the filter section 16. The distance between the snap block 73 and the snap plate 73, which is farther away from the attached snap plate 73, gradually increases from the filter section 16 toward the cover plate 7.

[0052] After the positioning rod 72 is inserted into the slot 163, the side of the clamping ring 18 that is close to each other abuts against the clamping block 731, and the cover plate 7 is continuously pushed toward the filter section 16. The clamping ring 18 can drive the clamping block 731 to approach, which can cause the clamping plates 73 to deform and move closer to each other, making it easier for the operator to continue pushing the cover plate 7. After the clamping block 731 is pushed into the clamping ring 18, the clamping plates 73 recover their deformation and move away from each other. The clamping block 731, the clamping plate 73 and the clamping ring 18 cooperate to firmly lock the cover plate 7 on the air inlet box 1.

[0053] By moving the two clamping plates 73 in the direction of approaching each other, the two clamping plates 73 can be elastically deformed and approached to each other, and the clamping block 731 can be moved away from the clamping ring 18 along with the clamping plate 73, thereby releasing the relative lock between the clamping block 731 and the clamping ring 18. Then, pulling the cover plate 7 outward can reduce the obstruction of the clamping block 731 to the sliding out of the cover plate 7, making it easier for the operator to remove the cover plate 7, thereby facilitating the operator to replace or maintain the filter element.

[0054] Reference Figure 2 、 Figure 3 and Figure 4, an impeller adapted to the rotation direction of the blower motor 6 is coaxially installed on the blower motor 6. The impeller is located inside the volute 2. Starting the blower motor 6 can draw air flow from the air inlet box 1 into the volute 2. The air flow inside the volute 2 enters the air duct 4 along the rotation direction of the volute 2. The cross-sectional area of the air duct 4 gradually increases in the direction from the volute 2 towards the evaporator 51. When the air flow flows in the air duct 4, as the cross-sectional area of the air duct 4 increases, the flow velocity of the air flow gradually decreases, reducing the noise generated by the air flow in the air duct 4, improving the air flow rate as a whole, and reducing the noise generated by the air conditioner blower. When the air flow contacts the evaporator 51, the flow velocity of the air flow slows down, increasing the contact time between the air flow and the evaporator 51, so that the evaporator 51 can fully cool the air flow and ensure the refrigeration effect of the evaporator 51 on the air flow.

[0055] The air duct 4 includes a first half shell 41 and a second half shell 42. Both the first half shell 41 and the second half shell 42 are arranged along the extension direction of the air duct 4; the openings of the first half shell 41 and the second half shell 42 are close to each other, and the openings of the first half shell 41 and the second half shell 42 are fitted together, which is convenient for the operator to splice the first half shell 41 and the second half shell 42.

[0056] A clamping groove 421 is provided on the side wall of the second half shell 42 close to the first half shell 41. The clamping groove 421 is arranged along the extension direction of the second half shell 42. An insertion plate 411 is provided on the side wall of the first half shell 41 facing the second half shell 42. The insertion plate 411 is arranged along the extension direction of the second half shell 42. The insertion plate 411 is located inside the clamping groove 421.

[0057] Controlling the first half shell 41 and the second half shell 42 to approach each other, the insertion plate 411 and the clamping groove 421 cooperate to guide the splicing between the first half shell 41 and the second half shell 42. When the insertion plate 411 is inserted into the clamping groove 421, the alignment and splicing between the first half shell 41 and the second half shell 42 are more conveniently realized.

[0058] The first half shell 41 is located on the side of the second half shell 42 close to the air inlet box 1. A clamping component 8 is arranged between the first half shell 41 and the second half shell 42. The operator splices the first half shell 41 and the second half shell 42 together, and the quick installation of the air duct 4 can be realized through the clamping component 8.

[0059] The clamping component 8 includes a clamping seat 81, a clamping rod 82, an elastic ring 83 and a clamping block 84. The clamping rod 82 and the elastic ring 83 are integrally welded to the first half shell 41. The clamping seat 81 is integrally welded to the second half shell 42. The clamping block 84 is integrally welded to the side of the clamping seat 81 away from the first half shell 41.

[0060] One end of the clamping rod 82 is connected to the first half shell 41, and the other end faces the second half shell 42. A clamping hole is provided on the side of the clamping seat 81 close to the first half shell 41, and the clamping hole is plugged into and adapted to the clamping rod 82. The end of the clamping rod 82 facing the clamping seat 81 is in a constricted shape. When splicing the first half shell 41 and the second half shell 42, it is convenient for the operator to insert the clamping rod 82 into the clamping hole, thereby positioning the first half shell 41 and the second half shell 42.

[0061] The thickness of the block 84 gradually increases from the first half shell 41 toward the second half shell 42. When the operator controls the first half shell 41 and the second half shell 42 to approach each other, the elastic ring 83 and the side of the block 84 away from the second half shell 42 are abutted against each other, and the first half shell 41 and the second half shell 42 are continued to be controlled to approach each other. Driven by the block 84, the elastic ring 83 is elastically deformed and moves away from the second half shell 42; when the first half shell 41 and the second half shell 42 are closed, the elastic ring 83 recovers its deformation and is sleeved on the block 84, thereby more conveniently realizing the clamping connection between the elastic ring 83 and the block 84.

[0062] The elastic ring 83 and the clamping block 84 cooperate with each other to preliminarily fix the first half shell 41 and the second half shell 42. By moving the elastic ring 83 away from the clamping seat 81, the clamping connection between the elastic ring 83 and the clamping block 84 can be released. Then, the first half shell 41 and the second half shell 42 can be moved away from each other, reducing the obstruction of the clamping block 84 to the movement of the elastic ring 83. This makes it easier for the operator to separate the first half shell 41 and the second half shell 42.

[0063] Reference Figure 3 、 Figure 4 and Figure 5 A fixing seat is also welded to the outside of the second half shell 42, and a threaded hole is opened on the side of the fixing seat facing the first half shell 41. A fixing plate is welded to the outside of the first half shell 41, and the fixing plate is abutted against the fixing seat, and a through hole aligned with the threaded hole is opened on the fixing plate. The operator can pass the bolt through the through hole and screw it into the threaded hole, thereby strengthening the connection between the first half shell 41 and the second half shell 42.

[0064] Multiple groups of fixing seats, fixing plates and clamping components 8 are provided along the extension direction of the air duct 4 , thereby enhancing the stability of the connection between the first half shell 41 and the second half shell 42 .

[0065] Air guide protrusions 412 are provided within the air duct 4. These protrusions 412 are located above the evaporator 51 and on the inner side of the upper sidewall of the air duct 4. The protrusions 412 extend perpendicularly to the direction of extension of the air duct 4. When airflow contacts the protrusions 412 as it moves through the air duct, they guide the airflow toward the evaporator 51 and into the air distribution system 5.

[0066] The air guiding protrusion 412 is in the shape of a triangular prism, and the height of the side of the air guiding protrusion 412 close to the volute 2 gradually decreases in the direction from the volute 2 towards the air guiding protrusion 412. When the air flow contacts the side of the air guiding protrusion 412 close to the volute 2, the air flow flows along the side surface of the air guiding protrusion 412 close to the volute 2 and downward, so that the air flow blows towards the evaporator 51, thereby realizing the guiding of the air flow.

[0067] In the embodiment of the present application, the air guiding protrusion 412 is formed by pressing the upper side of the air duct 4 downward. There are two air guiding protrusions 412 provided corresponding to the first half shell 41 and the second half shell 42 respectively, and the two air guiding protrusions 412 are spliced with each other. In other embodiments, the air guiding protrusion 412 may also be a metal block welded to the inner side of the upper side wall of the air duct 4.

[0068] A curved surface section 413 is provided at the end of the air duct 4 far from the volute 2. The curved surface section 413 is located above the side of the evaporator 51 far from the volute 2, and the curved surface section 413 protrudes downward. The curved surface section 413 is located on the side of the air guiding protrusion 412 far from the volute 2. After the air flow bypasses the air guiding protrusion 412, the air flow blows onto the curved surface section 413, and the curved surface section 413 can block the air flow and reflect the air flow downward, so that the air flow blows towards the evaporator 51.

[0069] The curved surface section 413 is provided on both the first half shell 41 and the first half shell 41. The curved surface section 413 of the first half shell 41 and the curved surface section 413 of the second half shell 42 are spliced with each other. The curved surface section 413 and the air guiding protrusion 412 cooperate to be able to guide the air flow towards the evaporator 51 at intervals, so as to facilitate the air to uniformly contact the evaporator 51, thereby ensuring the cooling and temperature reduction effect of the evaporator 51 on the air.

[0070] Refer to Figure 4 、 Figure 9 and Figure 10A mounting box 414 is welded to the lower side of the air duct 4. A horizontal cable drum 9 is detachably mounted on the lower side of the mounting box 414, and the cable is installed inside the cable drum 9. A mounting hole is formed through the lower sidewall of the mounting box 414. A mounting plate 91 is vertically fixed and welded to the upper side of the cable drum 9. Two first elastic clips 92 are connected to the upper side of the mounting plate 91. The two first elastic clips 92 are arranged on opposite sides of the mounting column, and the distance between the two first elastic clips 92 gradually increases from top to bottom. The mounting plate 91 is inserted into the mounting hole from bottom to top. As the mounting plate 91 is inserted, the two first elastic clips 92 elastically deform and move closer to each other, gradually entering the mounting hole. When the first elastic clip 92 is fully inserted into the mounting hole, the first elastic clip 92 recovers its deformation. The two first elastic clips 92 cooperate to prevent the mounting plate 91 from being removed from the mounting box 414, thereby reducing the separation between the cable drum 9 and the mounting box 414.

[0071] In order to reduce the shaking of the cable drum 9 and improve the stability of the cable drum 9 installation, two second elastic clips 93 are welded to the lower side of the mounting plate 91. The two second elastic clips 93 are arranged on opposite sides of the mounting plate 91, and the elastic clips are tilted upward on the side away from the mounting plate 91. After the mounting plate 91 is inserted into the mounting hole, the first elastic clip 92 can abut against the upper side of the side wall where the mounting hole is located, and the second elastic clip 93 can abut against the lower side of the side wall where the mounting hole is located. The cooperation between the first elastic clip 92 and the second elastic clip 93 improves the stability of the mounting plate 91 in the mounting hole, reduces the shaking of the mounting plate 91, and thus reduces the shaking of the cable drum 9.

[0072] The mounting hole is an elliptical hole, and the mounting plate 91 is plugged and adapted to the mounting hole. The mounting plate 91 abuts against two opposing inner side walls of the mounting hole, and the mounting plate 91 is parallel to the long diameter of the mounting hole, thereby reducing the rotation of the mounting plate 91 within the mounting box 414. The side wall of the mounting box 414 is provided with an observation port, which allows the operator to move the two first elastic clips 92 through the observation port, causing the two first elastic clips 92 to elastically deform and move closer together, thereby facilitating the operator to pull the mounting plate 91 out of the mounting hole, facilitating the replacement or maintenance of the cable reel 9.

[0073] The volute 2 includes a third half-shell 21 and a fourth half-shell 22. Both the third half-shell 21 and the fourth half-shell 22 are arranged along the falling direction of the volute 2. The volute 2 is formed by splicing the third half-shell 21 and the fourth half-shell 22 together. The third half-shell 21 and the first half-shell 41 are integrally cast, while the fourth half-shell 22 and the second half-shell 42 are integrally cast. The volute tongue 3 is provided on both the third half-shell 21 and the fourth half-shell 22.

[0074] A plug plate 411 is also welded on the side wall of the third half shell 21 close to the fourth half shell 22, and a slot 163 is opened on the side wall of the fourth half shell 22 close to the third half shell 21, which can position and plug the third half shell 21 and the fourth half shell 22, thereby realizing the preliminary splicing and installation of the volute 2.

[0075] A clamping assembly 8 is also provided between the third half shell 21 and the fourth half shell 22. The elastic ring 83 and the clamping rod 82 are connected to the third half shell 21, and the clamping seat 81 and the clamping block 84 are both connected to the fourth half shell 22. The clamping assembly 8 can be used to preliminarily clamp and fix the splicing between the third half shell 21 and the fourth half shell 22, and the third half shell 21 and the fourth half shell 22 are detachably fixed by bolts.

[0076] When the elastic ring 83 is pulled away and moved away from the clamping seat 81, the elastic ring 83 will press against the clamping seat 81 under the drive of its own elastic force, so that the elastic ring 83 is again placed on the clamping block 84. The clamping assembly 8 is provided with multiple groups, and it is difficult for the operator to disengage the clamping of the elastic ring 83 and the clamping block 84 separately.

[0077] A support screw 422 is rotatably connected to the outer wall of the second half shell 42 / fourth half shell 22. A support plate 423 is slidably mounted on the support screw 422. The support plate 423 has a threaded hole through which the support screw 422 is threadedly connected. The support plate 423 is located between the elastic ring 83 and the clamping seat 81, and the support rod and the elastic ring 83 abut against each other. A guide post 424 is also welded to the outer wall of the second half shell 42 / fourth half shell 22. The guide post 424 is parallel to the support screw 422. The support rod has a guide hole for the guide post 424 to pass through. The guide post 424 is inserted into the guide hole. The guide post 424 guides the sliding of the support plate 423 and limits the rotation of the support plate 423 along the support screw 422.

[0078] By controlling the relative rotation of the support plate 423 and the support screw 422, the support plate 423 can be moved away from the clamping seat 81. The support plate 423 can be supported on the side of the elastic ring 83 close to the clamping seat 81, thereby blocking the elastic ring 83 from recovering its deformation, thereby reducing the elastic ring 83 from being sleeved on the clamping block 84. When the first half shell 41 and the second half shell 42 are pulled away from each other, it is convenient for the elastic ring 83 and the clamping block 84 to move away from each other.

[0079] An installation opening 415 is provided on the lower side of the first half shell 41 or the second half shell 42. A gas flow rate sensor 10 is inserted and installed in the installation opening 415. The gas flow rate sensor 10 is partially located in the air duct 4, and the fin direction of the gas flow rate sensor 10 is consistent with the air flow direction in the air duct 4. It is used to detect the gas flow rate. The gas flow rate sensor is electrically connected to the blower motor 6, which can facilitate the control of the blower motor 6 to adjust the gas flow rate in the air duct 4.

[0080] The implementation principle of the air conditioner blower in the embodiment of the present application is as follows: When the blower motor 6 is started, the air flow enters the volute 2 through the air inlet box 1, and after rotating along the volute 2, it enters the air duct 4; the air flow moves along the air duct 4. When the air flow contacts the air guiding protrusion 412, the air guiding protrusion 412 can guide the air flow to the evaporator 51, thereby cooling and reducing the temperature of the air flow. The volute 2 is arranged counterclockwise, so that the volume of the volute 2 extending downward is larger than the volume extending upward, reducing the occupation of the upper space by the volute 2 and generally improving the problem of being prone to interference with other components in the vehicle body.

[0081] Unless otherwise defined, the technical terms or scientific terms used in this application shall have the ordinary meanings understood by those of ordinary skill in the field to which this application belongs. The words "first", "second", "third" and similar words used in the specification and claims of this application do not indicate any order, quantity or importance, but are only used to distinguish different components. Words such as "a" or "an" do not also indicate a quantity limitation, but indicate that there is at least one. Words such as "including" or "comprising" mean that the elements or objects appearing before "including" or "comprising" cover the elements or objects listed after "including" or "comprising" and their equivalents, and do not exclude other elements or objects. "Upper", "lower", "left", "right", etc. are only used to represent relative position relationships. When the absolute position of the described object changes, the relative position relationship may also change accordingly.

[0082] The above are all optional embodiments of this application, and do not limit the protection scope of this application accordingly. Therefore, all equivalent changes made according to the structure, shape and principle of this application shall be covered within the protection scope of this application.

Claims

1. An air-conditioning blower, comprising a volute (2), an air duct (4), and an air volume distribution system (5), wherein the volute (2) is located on one side of the air volume distribution system (5), an air inlet (52) of the air volume distribution system (5) is located on the other side adjacent to the side where the volute (2) is located, and the air duct (4) is located between the volute (2) and the air volume distribution system (5), connecting the air outlet of the volute (2) and the air inlet (52) of the air volume distribution system (5), characterized in that: The air outlet of the volute (2) is at least partially located on the same side of the plane where the air inlet (52) of the air distribution system (5) is located, and the center of the volute (2) and the air distribution system (5) are located on opposite sides of the plane where the air inlet (52) of the air distribution system (5) is located; a blower motor (6) is fixedly mounted on the side of the volute (2) away from the air inlet box (1) by bolts, the axis of the blower motor (6) is coaxial with the axis of the volute (2), and when viewed from the blower motor (6) toward the volute (2), the volute (2) rotates counterclockwise, and the volute (2) has a volute tongue (3), which is welded to a lower position of the volute (2); An air guide protrusion (412) is provided in the air duct tube (4), the air guide protrusion (412) is located on the upper side of the evaporator (51), and the air guide protrusion (412) is located on the inner side of the upper side wall of the air duct tube (4), and the extension direction of the air guide protrusion (412) is perpendicular to the extension direction of the air duct tube (4); the air guide protrusion (412) is in the shape of a triangular prism, and the height of the side of the air guide protrusion (412) close to the volute (2) gradually decreases from the volute (2) toward the air guide protrusion (412), and when the air flow contacts the side of the air guide protrusion (412) close to the volute (2), the air flow flows along the side of the air guide protrusion (412) close to the volute (2) and downward, so that the air flow is blown toward the evaporator (51).

2. The air-conditioning blower according to claim 1, characterized in that: The air duct tube (4) comprises a first half shell (41) and a second half shell (42); the openings of the first half shell (41) and the second half shell (42) are arranged relative to each other to form an air duct; the first half shell (41) and the second half shell (42) are connected via a snap-fit assembly (8).

3. The air-conditioning blower according to claim 2, characterized in that: The clamping assembly (8) comprises an elastic ring (83) and a clamping block (84), wherein the elastic ring (83) is connected to the first half shell (41), and the clamping block (84) is connected to the second half shell (42). The clamping block (84) is located inside the elastic ring (83), and a side of the clamping block (84) away from the first half shell (41) abuts against an inner side of the elastic ring (83).

4. The air-conditioning blower according to claim 3, characterized in that: The distance between the side of the clamping block (84) away from the second half shell (42) and the second half shell (42) gradually increases from the first half shell (41) toward the second half shell (42).

5. The air-conditioning blower according to claim 4, characterized in that: A slot (421) is provided on the side wall of the second half shell (42) close to the first half shell (41), and an inserting plate (411) is provided on the side wall of the first half shell (41) facing the second half shell (42), and the inserting plate (411) is located in the slot (421).

6. The air-conditioning blower according to claim 1, characterized in that: The invention also includes an air inlet box (1), wherein the air outlet of the air inlet box (1) is connected to the air inlet of the volute (2), the air inlet box (1) is provided with a first air inlet (11) and a second air inlet (12), and the air inlet box (1) is provided with a switch component (13), and the switch component (13) is used to control the opening and closing of the first air inlet (11) and the second air inlet (12).

7. The air-conditioning blower according to claim 6, characterized in that: The air inlet box (1) is provided with a plug hole (161) on a side wall adjacent to the volute (2), and the plug hole (161) is used for inserting a filter element. A cover plate (7) for closing the plug hole (161) is detachably mounted on the air inlet box (1).

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