Air conditioner blower

Abstract

The invention relates to the technical field of air conditioners, and particularly discloses an air conditioner blower which comprises a volute, an air duct pipe and an air volume distribution system, the volute is located on one side of the air volume distribution system, an air inlet of the air volume distribution system is opened upwards, 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 pipe is located between the volute and the air distribution system and communicates with an air outlet of the volute and an air inlet of the air distribution system, and at least part of the air outlet of the volute and the air distribution system are located on the same side of the plane where the air inlet of the air distribution system is located. The center of the volute and the air distribution system are located on the two opposite sides of the plane where the air inlet of the air distribution system is located. After the air blower is installed in the vehicle body, the protruding height of the upper side of the volute relative to the air distribution system is reduced, the space occupied by the upper side of the volute is reduced, and the problem that installation of other parts in the vehicle body is not facilitated is solved.

Description

Technical Field

[0001] The present application relates to the technical field of air conditioning, and in particular to an air conditioning blower. Background Art

[0002] Automobile air conditioning systems are often installed in cars to cool the air in the car. To cool the car, an air conditioning blower is often needed to send cold air in the evaporator box into the car.

[0003] An existing automobile air-conditioning 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 mounted on the outer shell of the volute, an impeller is fixedly connected to the output shaft of the blower motor, the impeller is located in the volute, the volute is connected to an air duct pipe, and the end of the air duct pipe away from the volute is connected to the air volume distribution system.

[0004] The installation space inside the car is relatively limited, and many structures need to be installed. After the blower is installed in the car body, the upper side of the volute protrudes a large height relative to the air volume distribution system, resulting in the blower occupying a large space, which is not conducive to the installation of other components in the car body. Summary of the invention

[0005] In order to improve the problem of being unfavorable for the installation of other components in the vehicle body, the present application provides an air conditioning blower.

[0006] The present application provides an air conditioning blower adopting the following technical solution: An air conditioning blower comprises a volute, an air duct pipe and an air volume distribution system, the volute being located on one side of the air volume distribution system, the air inlet of the air volume distribution system being located on the other side adjacent to the side where the volute is located, the air duct pipe being 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, the air outlet of the volute being at least partially located 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 located on opposite sides of the plane where the air inlet of the air volume distribution system is located.

[0007] By adopting the above technical solution, after the blower is installed in the vehicle body, the air outlet of the volute is at least partially located 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, thereby reducing the protruding height of the upper side of the volute relative to the air volume distribution system, reducing the space occupied by the upper side of the volute, and improving the utilization of the space on the lower side of the volute, thereby reducing the space occupied by the air conditioning blower, and overall improving the problem of being unfavorable for the installation of other components in the vehicle body.

[0008] Optionally, the air duct comprises 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 via a snap-on assembly.

[0009] 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 is convenient for the operator to install and disassemble the air duct pipe.

[0010] Optionally, the clamping 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 in the elastic ring, and a side of the clamping block away from the first half shell abuts against an inner side of the elastic ring.

[0011] 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.

[0012] Optionally, the distance between a side of the block away from the second half shell and the second half shell gradually increases from the first half shell toward the second half shell.

[0013] By adopting the above technical solution, when the first half shell and the second half shell are close to each other, the elastic ring abuts against the side of the clamping block away from the second half shell, and the first half shell and the second half shell are continuously controlled to be close to 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.

[0014] Optionally, a slot is provided on the side wall of the second half shell close to the first half shell, and an insertion plate is provided on the side wall of the first half shell facing the second half shell. The insertion plate is arranged along the extension direction of the second half shell and is located in the slot.

[0015] By adopting the above technical solution, the plug plate and the slot cooperate to guide the splicing between the first half shell and the second half shell. When the plug plate is inserted into the slot, the splicing between the first half shell and the second half shell is more conveniently achieved.

[0016] Optionally, an area on the inner wall of the air duct pipe opposite to the air inlet of the air volume distribution system has an air guide protrusion, 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.

[0017] 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.

[0018] Optionally, the distance between a side of the air guide protrusion close to the volute and an air inlet of the air volume distribution system gradually decreases from the volute toward the air guide protrusion.

[0019] By adopting the above technical solution, after the airflow hits the side of the air guide protrusion close to the volute, the airflow flows along the side of the air guide protrusion close to the volute, thereby guiding the airflow.

[0020] Optionally, the air inlet box is provided with a first air inlet and a second air inlet, and a switch component is provided inside the air inlet box, and the switch component is used to control the opening and closing of the first air inlet and the second air inlet.

[0021] By adopting the above technical solution, the switch element is controlled to control the opening and closing of the first air inlet and the second air inlet, so that the air intake mode of the air inlet box can be changed.

[0022] Optionally, a plug hole is provided on the side wall of the air inlet box adjacent to the volute, the plug hole is used for inserting a filter element, and a cover plate for closing the plug hole is detachably mounted on the air inlet box.

[0023] By adopting the above technical solution, after the filter element is inserted into the insertion hole, the gas entering the volute can be filtered, and at the same time, the plug hole is closed by controlling the cover plate to reduce the filter element from falling out.

[0024] In summary, the present application includes at least one of the following beneficial technical effects: 1. The air duct and the volute tongue are arranged on the lower side of the volute. After the blower is installed in the vehicle body, the utilization of the space on the lower side of the volute is improved, and 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 easy to interfere with other components in the vehicle body; 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 stability of the connection between the first half shell and the second half shell; 3. After the filter element is inserted into the socket, the gas entering the volute can be filtered. At the same time, the socket is closed by controlling the cover plate to reduce the filter element from falling out. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0026] Figure 1It is a structural schematic diagram of an air conditioning blower in the related art; Figure 2 It is a schematic diagram of the overall structure of an embodiment of the present application; Figure 3 This is a partial structural diagram for showing the connection of the air duct pipe of this application; Figure 4 This is a partial structural diagram for demonstrating the installation of the air guide protrusion; Figure 5 yes Figure 3 A magnified schematic diagram of part A; Figure 6 This is a partial structural diagram for showing the connection inside the air inlet box; Figure 7 This is a partial structural diagram for showing the connection of the cover plate; Figure 8 yes Figure 7 A magnified schematic diagram of part B; Fig. 9 This is a schematic diagram to show the connection of the cable drum; Fig.10 This is a partial structural diagram to demonstrate the installation of the gas flow rate sensor.

[0027] Reference numerals: 1, air inlet box; 11, first air inlet; 12, second air inlet; 13, switch member; 14, arc segment; 15, sealing edge; 16, filter segment; 161, plug hole; 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; 41, first half shell; 411, plug plate; 412, air guide protrusion; 413, curved segment; 414, installation box; 415, installation port; 42. Second half shell; 421. Card slot; 422. Support screw; 423. Support plate; 424. Guide column; 5. Air volume distribution system; 51. Evaporator; 52. Air inlet; 6. Blower motor; 7. Cover plate; 71. Fixing slot; 72. Positioning rod; 73. Card plate; 731. Card block; 8. Card assembly; 81. Card seat; 82. Card rod; 83. Elastic ring; 84. Card block; 9. Cable drum; 91. Mounting plate; 92. First elastic card; 93. Second elastic card; 10. Gas flow rate sensor. DETAILED DESCRIPTION

[0028] The following is combined with Figure 1-10 This application is described in further detail.

[0029] Figure 1It is a structural schematic 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 located 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 indicates the plane where the air inlet 5252 of the air volume distribution system 5 is located. The spiral direction of the volute 2 is clockwise. The upper side of the volute 2 protrudes at a higher height relative to the plane where the air inlet 52 of the air volume distribution system 5 is located, resulting in a larger space occupied by the upper side of the volute 2, which is not conducive to the installation of other components in the vehicle body.

[0030] The present application embodiment discloses an air conditioner blower. Figure 2 , Figure 3 and Figure 4 The air conditioner 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 a functional device located inside the housing. For example, the functional device may include an evaporator 51. The housing has an air inlet 52, and the evaporator 51 may be located at the air inlet 52.

[0031] The volute 2 is located on one side of the air volume distribution system 5, and 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, 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, and 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 volume distribution system 5 is located as the air volume distribution system 5. Figure 4 The dotted line in the figure indicates the plane where the air inlet 5252 of the air volume distribution system 5 is located, and the center of the volute 2 and the air volume distribution system 5 are located on opposite sides of the plane where the air inlet 52 of the air volume distribution system 5 is located. After the blower is installed in the vehicle body, the height of the upper side of the volute 2 relative to the air volume distribution system 5 is reduced, the space occupied by the upper side of the volute 2 is reduced, and the utilization of the space on the lower side of the volute 2 is improved, thereby reducing the volume occupied by the air conditioning blower, and overall improving the problem of being unfavorable to the installation of other components in the vehicle body.

[0032] 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 from the blower motor 6 toward the volute 2, the volute 2 rotates counterclockwise. The volute 2 has a volute tongue 3, which is welded at the lower position of the volute 2, so that the space occupied by the volute 2 on the upper side is reduced.

[0033] Reference 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 switch member 13 is provided inside the air inlet box 1. The air inlet box 1 has an arc segment 14, the first air inlet 11 is located on the upper side of the arc segment 14, and the second air inlet 12 is located on the arc side wall of the arc segment 14. The switch member 13 is a baffle rotatably connected inside the air inlet box 1, the rotation axis of the baffle is consistent with the axis of the arc segment 14, and a sealing edge 15 is welded on the inner side wall of the air inlet box 1 protruding from the circumference of the first air inlet 11 and the second air inlet 12. A rotating motor is fixedly installed on the shell of the air inlet box 1, and the baffle is connected to the output shaft of the rotating motor. By controlling the rotating motor, the automatic rotation of the baffle can be controlled, thereby realizing automatic control of the opening and closing of the first air inlet 11 and the second air inlet 12.

[0034] When the baffle is rotated and aligned with the first air inlet 11, the baffle can abut against the sealing edge 15 on the peripheral side of the first air inlet 11, thereby sealing the first air inlet 11, so that the second air inlet 12 remains open, and the air inlet box 1 takes in air from the second air inlet 12. Controlling the baffle to rotate and abutting against the sealing edge 15 on the peripheral side of the second air inlet 12 can make the baffle seal the second air inlet 12, thereby controlling the second air inlet 12 to close, so that the air inlet box 1 takes in air from the first air inlet 11. The first air inlet 11 and the second air inlet 12 can be connected to external air and internal air respectively, and by controlling the closing of the first air inlet 11 and the second air inlet 12, the air intake method of the air inlet box 1 can be controlled.

[0035] The air inlet box 1 also includes a filter section 16, which is connected to the arc section 14 and the volute 2. A plug hole 161 is provided on the side wall of the filter section 16. Two support rings 162 are coaxially welded on the inner side of the filter section 16. The plug hole 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 plug hole 161, the filter element is inserted into the slot 163, thereby realizing the plug-in installation of the filter element.

[0036] Reference 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 fitted with the fixing groove 71. A rubber sealing gasket is bonded in 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.

[0037] 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 adapted to the positioning rod 72 is provided on the inner wall of the fixing ring 17. By inserting the positioning rod 72 into the positioning groove 171, the cover plate 7 can be initially positioned, which facilitates the alignment of the cover plate 7.

[0038] A clamping ring 18 is welded on the outer wall of the filter section 16. Two clamping rings 18 are provided corresponding to the opposite sides of the insertion hole 161. The opposite sides of the cover plate 7 are integrally cast with a clamping plate 73. The clamping plate 73 is elastic. The planes where the clamping plate 73 and the clamping ring 18 are located are parallel, and the two clamping plates 73 are located between the two clamping rings 18. The clamping plate 73 is elastic. A clamping block 731 is welded on the side of the two clamping plates 73 away from each other. The clamping block 731 is located on the side of the clamping plate 73 close to the filter section 16. The distance between the side of the clamping block 731 away from the clamping plate 73 connected thereto and the clamping plate 73 gradually increases from the filter section 16 toward the cover plate 7.

[0039] 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, so that the clamping plate 73 can be deformed and close to each other, which is convenient for the operator to continue to push the cover plate 7. After the clamping block 731 is pushed into the clamping ring 18, the clamping plate 73 recovers its deformation and moves 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.

[0040] Pushing the two snap-fit ​​plates 73 in the direction of approaching each other can cause the two snap-fit ​​plates 73 to undergo elastic deformation and approach each other, and can cause the snap-fit ​​block 731 to move away from the snap-fit ​​ring 18 along with the snap-fit ​​plates 73, thereby releasing the relative lock between the snap-fit ​​block 731 and the snap-fit ​​ring 18. Then, pulling the cover plate 7 outward can reduce the obstruction of the snap-fit ​​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.

[0041] Reference Figure 2 , Figure 3 and Figure 4The blower motor 6 is coaxially mounted with an impeller that matches the rotation direction of the blower motor 6. The impeller is located in the volute 2. When the blower motor 6 is started, the airflow can be drawn from the air inlet box 1 into the volute 2. The airflow in the volute 2 enters the air duct pipe 4 along the rotation direction of the volute 2. The cross-sectional area of ​​the air duct pipe 4 gradually increases from the volute 2 toward the evaporator 51. When the airflow flows in the air duct pipe 4, as the cross-sectional area of ​​the air duct pipe 4 increases, the flow velocity of the airflow gradually decreases, reducing the noise generated by the airflow in the air duct pipe 4, increasing the flow rate of the airflow as a whole, and reducing the noise generated by the air conditioner blower. When the airflow contacts the evaporator 51, the flow velocity of the airflow slows down, increasing the contact time between the airflow and the evaporator 51, so that the evaporator 51 fully cools the airflow, ensuring the cooling effect of the evaporator 51 on the airflow.

[0042] The air duct tube 4 includes a first half shell 41 and a second half shell 42, and the first half shell 41 and the second half shell 42 are both arranged along the extension direction of the air duct tube 4; the opening of the first half shell 41 and the opening of the second half shell 42 are close to each other, and the opening of the first half shell 41 and the opening of the second half shell 42 are in close contact with each other, which can facilitate the operator to splice the first half shell 41 and the second half shell 42.

[0043] A slot 421 is provided on the side wall of the second half shell 42 close to the first half shell 41 , and the slot 421 is arranged along the extension direction of the second half shell 42 . A plug plate 411 is provided on the side wall of the first half shell 41 facing the second half shell 42 , and the plug plate 411 is arranged along the extension direction of the second half shell 42 , and the plug plate 411 is located in the slot 421 .

[0044] The first half shell 41 and the second half shell 42 are controlled to be close to each other, and the plug plate 411 and the card slot 421 cooperate with each other to guide the splicing between the first half shell 41 and the second half shell 42. When the plug plate 411 is inserted into the card slot 421, the alignment and splicing between the first half shell 41 and the second half shell 42 are more conveniently achieved.

[0045] The first half shell 41 is located on a side of the second half shell 42 close to the air inlet box 1, and a clamping assembly 8 is provided 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 clamping assembly 8 can realize the quick installation of the air duct 4.

[0046] The clamping assembly 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 with the first half shell 41, the clamping seat 81 is integrally welded to the second half shell 42, and the clamping block 84 is integrally welded to the side of the clamping seat 81 away from the first half shell 41.

[0047] 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 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, the operator can conveniently insert the clamping rod 82 into the clamping hole, thereby positioning the first half shell 41 and the second half shell 42.

[0048] 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 restores 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.

[0049] Through the cooperation between the elastic ring 83 and the clamping block 84, the first half shell 41 and the second half shell 42 can be initially fixed, and the elastic ring 83 can be moved away from the clamping seat 81 to release the clamping connection between the elastic ring 83 and the clamping block 84, and then the first half shell 41 and the second half shell 42 can be controlled to move away from each other, thereby reducing the obstruction of the clamping block 84 to the movement of the elastic ring 83. This makes it convenient for the operator to separate the first half shell 41 and the second half shell 42.

[0050] 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. 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 reinforcing the connection between the first half shell 41 and the second half shell 42.

[0051] Multiple groups of the fixing seat, the fixing plate and the clamping assembly 8 are arranged 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.

[0052] An air guide protrusion 412 is provided in the air duct 4, and 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 4, and the extension direction of the air guide protrusion 412 is perpendicular to the extension direction of the air duct 4. When the airflow moves in the air duct, when the airflow contacts the air guide protrusion 412, the air guide protrusion 412 can guide the airflow so that the airflow blows toward the evaporator 51 and enters the air volume distribution system 5.

[0053] 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. When the airflow contacts the side of the air guide protrusion 412 close to the volute 2, the airflow flows along the side of the air guide protrusion 412 close to the volute 2 and downward, so that the airflow blows toward the evaporator 51, thereby achieving the guidance of the airflow.

[0054] In the embodiment of the present application, the air guide protrusion 412 is formed by pressing the upper side of the air duct tube 4 downward, and two air guide protrusions 412 are provided one by one corresponding to the first half shell 41 and the second half shell 42, and the two air guide protrusions 412 are spliced ​​with each other. In other embodiments, the air guide protrusion 412 can also be a metal block welded to the inner side of the upper side wall of the air duct tube 4.

[0055] A curved section 413 is provided at the end of the air duct pipe 4 away from the volute 2. The curved section 413 is located above the side of the evaporator 51 away from the volute 2, and the curved section 413 protrudes downward. The curved section 413 is located on the side of the air guide protrusion 412 away from the volute 2. After the airflow bypasses the air guide protrusion 412, the airflow blows onto the curved section 413. The curved section 413 can block the airflow and reflect the airflow downward, so that the airflow blows toward the evaporator 51.

[0056] The curved surface section 413 is arranged on the first half shell 41 and the second half shell 42. 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 guide protrusion 412 cooperate with each other to guide the airflow to the evaporator 51 at intervals, so as to facilitate the gas to contact the evaporator 51 evenly, thereby ensuring the cooling effect of the evaporator 51 on the gas.

[0057] Reference Figure 4 , Fig. 9 and Fig.10The lower side of the air duct 4 is welded with a mounting box 414, and a horizontal cable drum 9 is detachably mounted on the lower side of the mounting box 414, and the cable is mounted in the cable drum 9; a mounting hole is provided through the lower side wall of the mounting box 414, and a mounting plate 91 is vertically fixedly welded on the upper side of the cable drum 9, and two first elastic cards 92 are connected to the upper side of the mounting plate 91, and the two first elastic cards 92 are arranged opposite to the two sides of the mounting column, and the distance between the two first elastic cards 92 gradually increases from top to bottom. The mounting plate 91 is inserted into the mounting hole from bottom to top, and as the mounting plate 91 is inserted, the two first elastic cards 92 are elastically deformed and approach each other, and the first elastic cards 92 gradually enter the mounting hole. When the first elastic card 92 completely enters the mounting hole, the first elastic card 92 recovers its deformation, and the two first elastic cards 92 cooperate to limit 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.

[0058] In order to reduce the shaking of the cable drum 9 and improve the stability of the installation of the cable drum 9, two second elastic cards 93 are welded on the lower side of the mounting plate 91. The two second elastic cards 93 are arranged on opposite sides of the mounting plate 91, and the side of the elastic card away from the mounting plate 91 is tilted upward. After the mounting plate 91 is inserted into the mounting hole, the first elastic card 92 can be pressed against the upper side of the side wall where the mounting hole is located, and the second elastic card 93 can be pressed against the lower side of the side wall where the mounting hole is located. Through the cooperation of the first elastic card 92 and the second elastic card 93, the stability of the mounting plate 91 in the mounting hole is improved, the shaking of the mounting plate 91 is reduced, and thus the shaking of the cable drum 9 is reduced.

[0059] The mounting hole is an elliptical hole, and the mounting plate 91 is plugged and matched with the mounting hole. The mounting plate 91 is against the two opposite 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 in the mounting box 414. An observation port is provided on the side wall of the mounting box 414, so that the operator can move the two first elastic cards 92 through the observation port, so that the two first elastic cards 92 are elastically deformed and close to each other, so that the operator can pull the mounting plate 91 out of the mounting hole, which is conducive to the replacement or maintenance of the cable drum 9.

[0060] The volute 2 includes a third half shell 21 and a fourth half shell 22, which are both 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. The third half shell 21 and the first half shell 41 are integrally cast, and the fourth half shell 22 and the second half shell 42 are integrally cast. The volute tongue 3 is arranged on both the third half shell 21 and the fourth half shell 22.

[0061] 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.

[0062] A clamping assembly 8 is also provided between the third half shell 21 and the fourth half shell 22, wherein 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 joint 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.

[0063] When the elastic ring 83 is pushed 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 mounted 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.

[0064] A support screw 422 is rotatably connected to the outer wall of the second half shell 42 / fourth half shell 22, and a support plate 423 is slidably mounted on the support screw 422. A threaded hole is provided on the support plate 423, and the support screw 422 is threadedly connected to the support plate 423 through the threaded hole. 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 are against each other. A guide column 424 is also welded to the outer wall of the second half shell 42 / fourth half shell 22. The guide column 424 is parallel to the support screw 422. A guide hole for the guide column 424 to pass through is provided on the support rod. The guide column 424 is passed through the guide hole. The sliding of the support plate 423 can be guided by the guide column 424, and the guide column 424 can limit the rotation of the support plate 423 along the support screw 422.

[0065] By controlling the support plate 423 and the support screw 422 to rotate relative to each other, 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 and deforming, 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.

[0066] The lower side of the first half shell 41 or the second half shell 42 is provided with an installation opening 415, and the installation opening 415 is plugged with a gas flow rate sensor 10, 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. The gas flow rate sensor is used to detect the gas flow rate, and is electrically connected to the blower motor 6, so that the blower motor 6 can be easily controlled to adjust the gas flow rate in the air duct 4.

[0067] The implementation principle of the air-conditioning blower of the embodiment of the present application is: start the blower motor 6, the air flow passes through the air inlet box 1 and enters the volute 2, the air flow rotates along the volute 2 and enters the air duct pipe 4; the air flow moves along the air duct pipe 4, and when the air flow contacts the air guide protrusion 412, the air guide protrusion 412 can guide the air flow to the evaporator 51, thereby cooling the air flow, and the volute 2 is arranged counterclockwise, so that the volume of the volute 2 extending downward is larger than the volume extending upward, thereby reducing the occupation of the upper space by the volute 2, and overall improving the problem of easy interference with other components in the vehicle body.

[0068] Unless otherwise defined, the technical terms or scientific terms used in this application should be understood by people with ordinary skills 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. "One" or "one" and similar words do not indicate a quantitative limit, but indicate the existence of at least one. "Include" or "comprise" and similar words mean that the elements or objects appearing before "include" or "comprise" include the elements or objects listed after "include" or "comprise" and their equivalents, and do not exclude other elements or objects. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0069] The above are all optional embodiments of the present application, and are not intended to limit the protection scope of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. An air conditioner 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), It is 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 as the air volume distribution system (5), and the center of the volute (2) and the air volume distribution system (5) are located on opposite sides of the plane where the air inlet (52) of the air volume distribution system (5) is located.

2. An air conditioning blower according to claim 1, Features: 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-on assembly (8).

3. An air conditioning blower according to claim 2, Features: The clamping assembly (8) comprises an elastic ring (83) and a clamping block (84); the elastic ring (83) is connected to the first half shell (41); 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. An air conditioning blower according to claim 3, Features: The distance between a side of the block (84) away from the second half shell (42) and the second half shell (42) gradually increases in a direction from the first half shell (41) toward the second half shell (42).

5. An air conditioning blower according to claim 4, Features: 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. An air conditioning blower according to claim 1, Features: On the inner wall of the air duct pipe (4), an area opposite to the air inlet (52) of the air volume distribution system (5) is provided with an air guide protrusion (412), and the air guide protrusion (412) is used to guide the airflow in the air duct pipe (4) to the air inlet (52) of the air volume distribution system (5).

7. An air conditioning blower according to claim 6, Features: The distance between a side of the air guide protrusion (412) close to the volute (2) and an air inlet (52) of the air volume distribution system (5) gradually decreases in a direction from the volute (2) toward the air guide protrusion (412).

8. The air conditioning blower according to claim 1, Features: It also comprises an air inlet box (1), the air outlet of the air inlet box (1) being in communication with the air inlet of the volute (2), the air inlet box (1) being provided with a first air inlet (11) and a second air inlet (12), the air inlet box (1) being provided with a switch component (13), the switch component (13) being used to control the opening and closing of the first air inlet (11) and the second air inlet (12).

9. An air conditioning blower according to claim 8, Features: A plug hole (161) is provided on a side wall of the air inlet box (1) adjacent to the volute (2), the plug hole (161) being used for inserting a filter element, and a cover plate (7) for closing the plug hole (161) is detachably mounted on the air inlet box (1).

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