Fan shell, air blower assembly and vehicle air conditioning system

Abstract

The invention belongs to the technical field of fans, and discloses a fan shell, an air blower assembly and a vehicle air conditioning system, and the fan shell comprises a mounting shell, a heat dissipation piece and a damping assembly. The mounting shell is provided with a plurality of limiting grooves and is provided with a mounting space for mounting the stator and rotor assembly; the heat dissipation piece comprises a heat dissipation plate located in the installation shell, and the edge of the heat dissipation plate is provided with a plurality of fixing parts. The damping assembly comprises a plurality of damping parts which are arranged at intervals in the first direction, the damping parts are correspondingly arranged in the limiting grooves, and the ends of the damping parts in the first direction, the ends of the damping parts in the second direction and the ends, away from the axis of the mounting shell, of the damping parts abut against the groove walls of the limiting grooves. Pocket grooves are formed in the ends, facing the central axis of the mounting shell, of the damping pieces, the pocket grooves of the damping pieces correspond to the fixing parts one to one, and each fixing part is limited in the corresponding pocket groove. The fan shell, the air blower assembly and the vehicle air conditioning system can have low noise.

Description

Technical Field

[0001] The present invention relates to the technical field of fans, and in particular to a fan housing, a blower assembly and a vehicle air conditioning system. Background Art

[0002] The vehicle air conditioning system is used to achieve cooling, heating, ventilation and air purification in the car compartment, so as to provide a comfortable riding environment for passengers. The blower is an important component of the vehicle air conditioning system, which is used to drive the flow of gas. The noise level during the operation of the blower directly affects the comfort of the passengers.

[0003] In the prior art, a blower includes a casing, a stator, a rotor and an impeller. The stator and the rotor are at least partially installed in the casing. The impeller and the rotor are connected by a rotating shaft. When the rotor rotates, the impeller can be driven to rotate, thereby driving the gas. During the operation of the blower, the winding of the stator is energized to generate a magnetic field, so as to drive the rotor including the magnetic steel to rotate. A large amount of heat will be generated after the winding is energized. Therefore, a heat sink is usually provided in the casing to dissipate the heat of the winding. The heat sink in the prior art is arranged inside the casing and is detachably connected to the casing. During the operation of the blower, vibration is generated, causing the heat sink to move relative to the casing and hit the casing, thereby generating a large noise. Summary of the invention

[0004] A first object of the present invention is to provide a fan housing that can generate less noise.

[0005] A second object of the present invention is to provide a blower assembly that can generate less noise.

[0006] A third object of the present invention is to provide a vehicle air conditioning system that can generate less noise.

[0007] As conceived above, the technical solution adopted by the present invention is:

[0008] A fan housing is provided, comprising:

[0009] A mounting shell, wherein the mounting shell is provided with a plurality of limiting grooves, and the mounting shell has an installation space for installing the stator and rotor assembly;

[0010] A heat sink, comprising a heat sink located in the mounting shell, wherein the edge of the heat sink has a plurality of fixing portions;

[0011] A shock absorbing assembly, comprising a plurality of shock absorbing members, wherein the plurality of shock absorbing members are arranged at intervals along a first direction, the shock absorbing members are correspondingly arranged in the limiting groove, and the end of the shock absorbing member in the first direction, the end in the second direction and the end away from the central axis of the mounting shell are all abutted against the groove wall of the limiting groove, and the end of the shock absorbing member facing the central axis of the mounting shell is provided with a pocket groove, the pocket grooves of the plurality of shock absorbing members correspond to the plurality of fixing parts one by one, and each fixing part is limited in the pocket groove corresponding thereto;

[0012] The first direction is the circumferential direction of the mounting shell, the second direction is perpendicular to the first direction, and the second direction is the axial direction of the mounting shell.

[0013] Optionally, the fixing portion is clamped in the corresponding pocket groove in the second direction.

[0014] Optionally, the shock absorber has at least one clamping group, each of the clamping groups is at least partially located in the pocket groove, the clamping group includes two clamping blocks arranged opposite to each other in the second direction, and the fixing portion is clamped between the two clamping blocks.

[0015] Optionally, the fixing portion is provided with a plurality of protrusions on both surfaces in the second direction, the plurality of protrusions are arranged at intervals along the first direction and are all located in the pocket grooves, and a clamping block is provided between two protrusions located on the same surface and adjacent to each other in the first direction.

[0016] Optionally, the shock absorbing component is provided with a mounting through hole penetrating the shock absorbing component along the second direction, and the inner wall of the mounting through hole is provided with a plurality of ridges extending along the second direction; the mounting shell has a shock absorbing column penetrating the mounting through hole.

[0017] Optionally, the pocket groove has an arc-shaped groove wall, the arc-shaped groove wall is bent away from the central axis of the mounting shell, and the fixing portion includes an arc-shaped arc-shaped matching surface, and the arc-shaped matching surface abuts against the arc-shaped groove wall.

[0018] Optionally, the two abutting end walls of the shock absorber in the first direction are both inclined walls, and the length of the end of the shock absorber close to the central axis of the mounting shell in the first direction is smaller than the length of the end of the shock absorber away from the central axis of the mounting shell in the first direction.

[0019] Optionally, the outer wall of the shock absorber has an abutment protrusion, which abuts against the groove wall of the limiting groove; and / or, the end surface of the shock absorber facing the central axis of the mounting shell is provided with an extended protrusion, and the extended protrusion can contact the part of the heat sink except the fixing part.

[0020] Optionally, the shock absorbing member, the limiting groove and the fixing portion are each provided in three numbers, and the three fixing portions are evenly and spaced apart in the first direction.

[0021] A blower assembly is provided, comprising the blower housing as described above.

[0022] A vehicle air conditioning system is provided, comprising the fan housing as described above.

[0023] The fan housing, blower assembly and vehicle air conditioning system provided by the present invention have at least the following beneficial effects:

[0024] The mounting shell is provided with a plurality of limiting grooves for limiting the shock absorbing member, so that the mounting shell can limit the movement of the shock absorbing member in the first direction, the second direction and the direction away from the central axis of the mounting shell, and the end surface of the shock absorbing member facing the central axis of the mounting shell is provided with a pocket groove, and the fixing portion of the edge of the heat sink can be placed in the corresponding pocket groove and limited in the pocket groove, so that the shock absorbing member can limit the movement of the shock absorbing member in the first direction, the second direction and the direction away from the central axis of the mounting shell, and the plurality of shock absorbing members are arranged at intervals in the first direction, so that the plurality of shock absorbing members at different positions in the first direction can limit the movement of the shock absorbing member. The heat sink is supported by the heat element, thereby preventing the heat sink from translating relative to the mounting shell in a direction perpendicular to the second direction, thereby preventing the heat sink from translating and rotating relative to the mounting shell, and realizing that the heat sink is connected to the mounting shell through the shock-absorbing component, avoiding direct contact between the heat sink and the mounting shell, and preventing the heat sink from colliding with the mounting shell during vibration. The noise generated by the collision between the heat sink and the mounting shell can be attenuated by the buffering of the shock-absorbing component, so that the fan housing, the blower assembly and the vehicle air-conditioning system can have less noise during operation, thereby improving the noise reduction performance of the blower assembly. When the blower assembly is used in the vehicle air-conditioning system, it can have less noise, thereby improving the comfort of the vehicle using the vehicle air-conditioning system. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0026] Figure 1 is a structural schematic diagram of a blower assembly provided by an embodiment of the present invention;

[0027] Figure 2 is a first exploded view of a blower assembly provided by an embodiment of the present invention;

[0028] Figure 3 is a second exploded view of the blower assembly provided by an embodiment of the present invention;

[0029] Figure 4 is a first structural schematic diagram of a fan housing provided by an embodiment of the present invention;

[0030] Figure 5 is a second structural schematic diagram of a fan housing provided by an embodiment of the present invention;

[0031] Figure 6 is an exploded view of a fan housing provided by an embodiment of the present invention;

[0032] Figure 7 is a schematic structural diagram of a shock absorbing member provided in an embodiment of the present invention;

[0033] Figure 8 is a top view of a shock absorbing member provided by an embodiment of the present invention;

[0034] Fig. 9 is a schematic diagram of assembling a shock absorbing member and a heat sink provided in an embodiment of the present invention;

[0035] Fig.10 is a first structural schematic diagram of a heat sink provided by an embodiment of the present invention;

[0036] Fig.11 is a second structural schematic diagram of a heat sink provided by an embodiment of the present invention;

[0037] Fig.12 is a schematic structural diagram of a portion of a fan housing provided by an embodiment of the present invention;

[0038] Fig.13 is a schematic structural diagram of an elastic sealing ring provided by an embodiment of the present invention;

[0039] Fig.14 The present invention Fig.13 The enlarged view of point A is shown;

[0040] Fig.15 It is a schematic diagram of assembling the elastic sealing ring, the rear cover and the heat sink provided by an embodiment of the present invention;

[0041] Fig.16 The present invention Fig.15 The enlarged view of point B is shown;

[0042] Fig.17 is a first structural schematic diagram of a back cover provided by an embodiment of the present invention;

[0043] Fig.18 is a second structural schematic diagram of a back cover provided by an embodiment of the present invention;

[0044] Fig.19is a partial enlarged view of the rear cover and the heat sink after being assembled according to an embodiment of the present invention;

[0045] Fig. 20 It is a cross-sectional view of a fan housing provided by an embodiment of the present invention.

[0046] In the figure:

[0047] 100, mounting shell; 110, limiting groove; 120, mounting space; 130, mounting shell body; 1301, assembly port; 1302, mounting port; 131, first shell; 1311, shock absorbing column; 132, second shell; 140, back cover; 141, first reinforcing rib; 142, reinforcing boss; 143, cover body; 144, mounting boss; 1441, first clamping groove; 1442, first boss surface; 1443, second boss surface; 1444, second clamping groove; 145, mounting groove; 146, outer cover surface; 1461, first step surface; 1462, second step surface; 147, energy absorption groove; 148, horizontal plate; 149, vertical plate; 14a, third reinforcing rib; 150, positioning column; 151, elastic support convex part;

[0048] 200, heat sink; 201, heat sink; 210, fixing portion; 211, bump; 212, arc-shaped mating surface; 220, positioning hole; 230, heat dissipation column;

[0049] 300, shock absorbing assembly; 310, shock absorbing member; 311, pocket groove; 3111, arc-shaped groove wall; 312, abutting end wall; 320, clamping group; 321, clamping block; 330, mounting through hole; 331, convex ridge; 340, abutting protrusion; 350, extended protrusion;

[0050] 400, elastic sealing ring; 410, skirt; 411, first arc surface; 412, second arc surface; 420, extension; 421, third arc surface; 430, second reinforcing rib; 440, sealing ring body; 450, first elastic protrusion; 460, second elastic protrusion;

[0051] 500, stator and rotor assembly; 510, stator assembly; 511, enameled wire; 512, insert; 520, magnetic tile; 530, housing; 540, rotating shaft; 550, insert shock-absorbing rubber; 560, insert retainer; 570, first bearing; 580, second bearing;

[0052] 600, impeller;

[0053] 700, terminal block; 800, circuit board;

[0054] X, first direction; Y, second direction; Z, central axis. DETAILED DESCRIPTION

[0055] In order to make the technical problems solved by the present invention, the technical solutions adopted and the technical effects achieved clearer, the technical solutions of the present invention are further described below in conjunction with the accompanying drawings and through specific implementation methods. It is understood that the specific embodiments described herein are only used to explain the present invention, rather than to limit the present invention. It should also be noted that, for the convenience of description, only the parts related to the present invention are shown in the accompanying drawings, not all.

[0056] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0057] In the description of the present invention, unless otherwise clearly specified and limited, the terms "connected", "connected", and "fixed" 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 an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0058] In the present invention, unless otherwise clearly stipulated and limited, the first feature being "above" or "below" the second feature may include the first and second features being in direct contact, or may include the first and second features not being in direct contact but being in contact through another feature between them. Moreover, the first feature being "above", "above" and "above" the second feature includes the first feature being directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. The first feature being "below", "below" and "below" the second feature includes the first feature being directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature. In the description of this embodiment, unless otherwise specified, "multiple" specifically refers to two or more.

[0059] In the description of this embodiment, the terms "upper", "lower", "right", etc., directions or positional relationships are based on the directions or positional relationships shown in the drawings, and are only for the convenience of description and simplification of operation, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are only used to distinguish in the description and have no special meaning.

[0060] It should be noted that when an element is referred to as being “fixed to” or “disposed on” another element, it may be directly on the other element or there may be a central element.

[0061] The technical solution of the present invention is further described below with reference to the accompanying drawings and through specific implementation methods.

[0062] This embodiment provides a blower assembly that can produce less noise and provide higher comfort when used in a vehicle air-conditioning system.

[0063] like Figures 1 to 3 As shown, the blower assembly at least includes a blower housing (not shown in the figure), a stator and rotor assembly 500 , a terminal block 700 and a circuit board 800 .

[0064] The circuit board 800 is disposed in the fan housing, the terminal block 700 is installed in the fan housing and is electrically connected to the circuit board 800, and the terminal block 700 is used to insert a connector to provide electrical energy to the circuit board 800. Figure 3 As shown, the stator-rotor assembly 500 is at least partially installed in the fan housing, and the stator-rotor assembly 500 includes a stator group 510, a magnetic tile 520, a housing 530, a rotating shaft 540, a first bearing 570 and a second bearing 580. The stator group 510 is fixedly connected to the fan housing, and the enameled wire 511 of the stator group 510 is electrically connected to the circuit board 800. Exemplarily, the enameled wire 511 is electrically connected to the circuit board 800 through the plug 512, so that the electric energy transmitted to the circuit board 800 can be transmitted to the enameled wire 511. The plug 512 is fixedly connected to the fan housing through the plug holder 560, and the plug holder 560 is also provided with a plug 512 shock-absorbing rubber, which is arranged between the plug 512 and the plug holder 560. By arranging the plug 512 shock-absorbing rubber, the noise generated by the collision between the plug 512 and the plug holder 560 can be reduced.

[0065] The magnetic tile 520 in this embodiment is arranged around the outer periphery of the stator assembly 510 and is fixedly connected to the inner peripheral wall of the housing. When the enameled wire 511 is energized, a magnetic field is generated to drive the magnetic tile 520 and the housing 530 to rotate. The specific driving principle can be referred to the prior art, and this embodiment will not be described in detail here. The rotating shaft 540 is coaxially connected to the housing 530, so that when the housing 530 rotates, the rotating shaft 540 can be driven to rotate. One end of the rotating shaft 540 is rotatably mounted on the fan housing through the first bearing 570 and the second bearing 580, and the other end extends to the outside of the fan housing and is coaxially connected to the impeller 600. The circuit board 800 transmits electrical energy to the enameled wire 511. When the enameled wire 511 is energized as a winding, a magnetic field is generated and the magnetic tile 520 is driven to rotate. The magnetic tile 520 drives the housing 530 and the rotating shaft 540 to rotate, and the rotating shaft 540 drives the impeller 600 to rotate, thereby driving the flow of the fluid through the impeller 600.

[0066] Exemplarily, the fan housing includes a mounting housing 100, a heat sink 200 and a shock absorbing assembly 300. For ease of description, this embodiment defines a first direction X and a second direction Y. Figure 5 As shown, the first direction X is the circumferential direction of the mounting shell 100. Figure 6 As shown, the second direction Y is the axial direction of the mounting housing 100, that is, the first direction X is perpendicular to the second direction Y. The axial directions of the mounting housing 100, the rotating shaft 540, the stator assembly 510 and the impeller 600 are the same.

[0067] See also Figure 6 The mounting shell 100 is provided with a plurality of limiting grooves 110. For example, the plurality of limiting grooves 110 are arranged at intervals along the first direction X. Figure 2 As shown, the mounting housing 100 has an installation space 120 for installing the stator-rotor assembly 500 , and at least a portion of the stator-rotor assembly 500 is installed in the installation space 120 .

[0068] The heat sink 200 in this embodiment is used for heat dissipation of the blower assembly. For details, please continue to refer to Figure 6 The heat sink 200 in this embodiment includes a heat sink 201 located in the mounting shell 100, and the edge of the heat sink 201 has a plurality of fixing portions 210, and the plurality of fixing portions 210 are arranged at intervals on the edge of the heat sink 201 along the first direction X. Exemplarily, the fixing portions 210 protrude from the heat sink 201 in a direction away from the axis of the heat sink 201.

[0069] The shock absorbing assembly 300 in this embodiment is used to reduce the noise between the mounting shell 100 and the heat sink 201. Specifically, Figure 5 and Figure 6 As shown, the shock absorbing assembly 300 includes a plurality of shock absorbing members 310, and the plurality of shock absorbing members 310 are arranged at intervals along the first direction X. The plurality of shock absorbing members 310 correspond one-to-one to the plurality of limiting grooves 110, and each shock absorbing member 310 is correspondingly arranged in the limiting groove 110. In this embodiment, the end of the shock absorbing member 310 in the first direction X, the end in the second direction Y, and the end away from the central axis Z of the mounting shell 100 are all in contact with the groove wall of the limiting groove 110, so that the limiting groove 110 can limit the shock absorbing member 310 in the first direction X and the second direction Y, and can also limit the movement of the shock absorbing member 310 away from the axis of the mounting shell 100. Please refer to the embodiment of the present invention. Figure 6 and Figure 7As shown, a pocket groove 311 is formed at one end of the shock absorbing member 310 facing the central axis Z of the mounting shell 100, and each shock absorbing member 310 is formed with a pocket groove 311. The plurality of pocket grooves 311 correspond to the plurality of fixing portions 210 one by one, and each fixing portion 210 is limited in the pocket groove 311 corresponding thereto, so that the heat sink 201 is connected to the mounting shell 100 through the plurality of shock absorbing members 310.

[0070] It should be noted that the shock absorber 310 in this embodiment is an elastic structure, that is, the shock absorber 310 has a shock absorbing function, that is, the shock absorber 310 has the ability to generate elastic deformation. Exemplarily, the shock absorber 310 can achieve shock absorption through its own structure, for example, an elastic structure such as a spring is provided inside the shock absorber 310; the shock absorber 310 can also achieve shock absorption through its own material, for example, the material of the shock absorber 310 can be elastic materials such as rubber and silicone, which is not limited in this embodiment.

[0071] In the fan housing provided by the present embodiment, the mounting shell 100 is provided with a plurality of limiting grooves 110 for limiting the shock absorbing member 310, so that the mounting shell 100 can limit the movement of the shock absorbing member 310 in the first direction X, the second direction Y and the direction away from the central axis Z of the mounting shell 100, and the end surface of the shock absorbing member 310 facing the central axis Z of the mounting shell 100 is provided with a pocket groove 311, and the fixing portion 210 of the edge of the heat sink 201 can be placed in the corresponding pocket groove 311 and limited in the pocket groove 311, so that the shock absorbing member 310 can limit the movement of the shock absorbing member 310 in the first direction X, the second direction Y and the direction away from the central axis Z of the mounting shell 100, and the plurality of shock absorbing members 310 are arranged at intervals in the first direction X, so that the plurality of shock absorbing members 310 supports the heat sink 200 at different positions in the first direction X, thereby preventing the heat sink 200 from translating relative to the mounting shell 100 in a direction perpendicular to the second direction Y, thereby preventing the heat sink 200 from translating and rotating relative to the mounting shell 100, and realizing that the heat sink 200 is connected to the mounting shell 100 through the shock absorbing assembly 300, avoiding direct contact between the heat sink 200 and the mounting shell 100, and preventing the heat sink 200 from colliding with the mounting shell 100 during vibration. The noise generated by the collision between the heat sink 200 and the mounting shell 100 can be attenuated by the buffering of the shock absorbing member 310, so that the fan housing, the blower assembly and the vehicle air conditioning system can have less noise during operation, thereby improving the noise reduction performance of the blower assembly. When the blower assembly is used in the vehicle air conditioning system, it can have less noise, thereby improving the comfort of the vehicle using the vehicle air conditioning system.

[0072] In some optional embodiments, there are three shock absorbers 310, three limiting grooves 110 and three fixing parts 210, and the three fixing parts 210 are evenly spaced in the first direction X, that is, the three fixing parts 210 are arranged at 120° on the edge of the heat sink 201, and the three shock absorbers 310 are also arranged at 120°, which improves the uniformity of supporting the heat sink 201, so that the three shock absorbers 310 can be evenly stressed, improves the uniformity of the wear of the shock absorbers 310, and avoids the premature failure of a certain shock absorber 310 due to excessive wear. However, there is no need to set too many shock absorbers 310. Setting too many shock absorbers 310 will increase the weight of the fan housing, which is not conducive to the lightweight of the fan housing. If there are less than three shock absorbers 310, the balance of supporting the heat sink 201 will be reduced, so that the heat sink 201 will rotate relative to the mounting shell 100.

[0073] In some optional embodiments, the stator-rotor assembly 500 is mounted on the heat sink 200, specifically, as Fig.10 As shown, the heat sink 200 further includes a heat sink column 230, which is coaxially connected to the heat sink 201. The heat sink column 230 is a hollow structure, and the first bearing 570 and the second bearing 580 are both disposed in the heat sink column 230, so as to realize the rotation connection between the rotating shaft 540 and the heat sink column 230. The stator group 510 is riveted and set on the heat sink 200, specifically, the stator group 510 is riveted and set on the heat sink column 230, so that the heat sink column 230 can absorb the heat generated by the enameled wire 511 of the stator group 510, so as to realize efficient heat dissipation of the enameled wire 511.

[0074] Exemplarily, there may be multiple ways to limit the fixing portion 210 in the pocket groove 311. In this embodiment, the fixing portion 210 is clamped in the corresponding pocket groove 311 in the second direction Y, so as to improve the integrity of the fixing portion 210 and the shock absorbing member 310, thereby improving the shock absorption and noise reduction effect of the shock absorbing member 310.

[0075] Further optionally, if Figure 7 and Fig. 9As shown, the shock absorber 310 has at least one clamping group 320. At least part of each clamping group 320 is located in the pocket groove 311, that is, the clamping group 320 may have a part located in the pocket groove 311 and a part located outside the pocket groove 311. Each clamping group 320 includes two clamping blocks 321 arranged opposite to each other in the second direction Y, and the fixing part 210 is clamped between the two clamping blocks 321. The clamping method of the clamping block 321 is adopted to realize point-type fixation of the fixing part 210. The contact area between the fixing part 210 and the clamping block 321 is relatively small. Compared with the surface fixation, it can reduce the difficulty of inserting the fixing part 210 into the pocket groove 311 on the basis of ensuring the clamping effect, thereby reducing the difficulty of assembling the fan housing. In this embodiment, the portion of the clamping block 321 located outside the pocket groove 311 can abut against the portion of the heat sink 201 except the fixed portion 210, thereby achieving point contact with the portion of the heat sink 201 except the fixed portion 210, so that a buffer space can be formed between the portion of the heat sink 201 except the fixed portion 210 and the shock absorber 310, which is beneficial to buffering the heat sink 201.

[0076] In this embodiment, when a plurality of clamping groups 320 are provided, the plurality of clamping groups 320 are spaced apart along the first direction X to improve the strength of the clamping fixing portion 210 .

[0077] In some optional embodiments, such as Fig.10 As shown, the two surfaces of the fixing part 210 in the second direction Y are provided with a plurality of protrusions 211, and the plurality of protrusions 211 are arranged at intervals along the first direction X and are all located in the pocket grooves 311. Among them, there is a clamping block 321 between two protrusions 211 located on the same surface and adjacent to each other in the first direction X, so that the protrusions 211 and the clamping block 321 are alternately arranged in the first direction X, so as to improve the reliability of the damping member 310 in the upper limit position of the fixing part 210 in the second direction Y, and further improve the damping effect on the heat sink 200. In some optional embodiments, the clamping block 321 is clamped between two adjacent protrusions 211 in the first direction X, so as to further improve the integrity of the heat sink 201 and the damping member 310.

[0078] Please continue to see Fig.10 and Fig.11 The protrusion 211 is arranged at the edge of the fixing part 210, so that when the fixing part 210 and the shock absorbing member 310 are assembled, the fixing part 210 and the shock absorbing member 310 can be positioned and assembled by aligning the gap between the clamping block 321 and the adjacent protrusion 211.

[0079] For example, Figure 7 or Figure 8As shown, the shock absorber 310 is provided with a mounting through hole 330 penetrating the shock absorber 310 along the second direction Y. In this embodiment, the inner wall of the mounting through hole 330 is provided with a plurality of ridges 331 extending along the second direction Y, and the plurality of ridges 331 are arranged at intervals along the circumference of the mounting through hole 330. Figure 6 and Fig. 20 As shown, the mounting shell 100 has a shock-absorbing column 1311 penetrating the mounting through hole 330. By arranging a plurality of convex ridges 331 on the hole wall of the mounting through hole 330, when the shock-absorbing member 310 vibrates, the convex ridges 331 can be in uniform contact with the shock-absorbing column 1311, thereby ensuring that the vibration generated by the blower assembly during operation can be well dispersed on the shock-absorbing column 1311. At the same time, the arrangement of the plurality of convex ridges 331 can also achieve a good centering effect.

[0080] In some optional embodiments, such as Figure 2 As shown, the mounting shell 100 includes a mounting shell body 130. Figure 3 As shown, one side of the mounting shell body 130 in the axial direction has an assembly opening 1301, such as Figure 4 As shown, the other side of the mounting shell body 130 in the axial direction has a mounting opening 1302 for mounting the stator-rotor assembly 500. Exemplarily, the mounting shell body 130 includes a first shell 131 and a second shell 132. At least part of the heat sink 200 is disposed in the mounting shell body 130 and connected to the mounting shell body 130.

[0081] In this embodiment, the mounting shell body 130 is provided with a plurality of limiting grooves 110. Specifically, the heat sink 201 is provided in a space formed by the first shell 131 and the second shell 132. The first shell 131 has an installation space 120 for installing the stator-rotor assembly 500. The first shell 131 cooperates with the second shell 132 to form the limiting groove 110. For example, the depression of the first shell 131 toward the second shell 132 cooperates with the second shell 132 to form the limiting groove 110, or the depression of the second shell 132 toward the first shell 131 cooperates with the first shell 131 to form the limiting groove 110, or the depression of the first shell 131 and the depression of the second shell 132 cooperate to form the limiting groove 110, which is not limited in this embodiment. The shock-absorbing column 1311 is provided on the surface of the first shell 131 toward the second shell 132, and the bolt passes through the second shell 132 and is screwed to the shock-absorbing column 1311 to connect the first shell 131 and the second shell 132.

[0082] Further optionally, the mounting through hole 330 and the pocket groove 311 are independent of each other, and the mounting through hole 330 is arranged on the side of the pocket groove 311 away from the central axis Z of the mounting shell 100, that is, the shock absorber 310 in this embodiment has a pocket-shaped structure on the side close to the central axis Z of the mounting shell 100, and has a ring-shaped structure on the side away from the central axis Z of the mounting shell 100. The pocket-shaped structure is used for shock absorption and noise reduction between the heat sink 201 and the mounting shell 100, and the ring-shaped structure is used for shock absorption and noise reduction between the first shell 131 and the second shell 132, so that the entire fan housing has higher shock absorption and noise reduction performance.

[0083] In this embodiment, the pocket groove 311 has an arc-shaped arc-shaped groove wall 3111, and the arc-shaped groove wall 3111 is bent away from the central axis Z of the mounting shell 100. The fixing portion 210 includes an arc-shaped arc-shaped mating surface 212. Specifically, the surface of the fixing portion 210 away from the central axis Z of the mounting shell 100 includes an arc-shaped arc-shaped mating surface 212, and the arc-shaped mating surface 212 abuts against the arc-shaped groove wall 3111.

[0084] Further optionally, the multiple protrusions 211 on the fixing portion 210 include an arc-shaped block (not shown in the figure), the outer side surface of the arc-shaped block is coplanar with the arc-shaped mating surface 212, so that the arc-shaped block forms a claw-like structure and is clamped on the arc-shaped groove wall 3111, thereby improving the support effect on the heat sink 201 in the radial direction of the mounting shell 100.

[0085] In some optional embodiments, such as Figure 7 and Figure 8 As shown, the pocket groove 311 of the shock absorbing member 310 is in a closed shape, that is, the area of ​​the notch of the pocket groove 311 is smaller than the area of ​​the interior.

[0086] Exemplarily, the two abutting end walls 312 of the shock absorbing member 310 in the first direction X are both inclined walls, that is, the shock absorbing member 310 has a semi-trapezoidal structure. In this way, the contact between the abutting end wall 312 of the shock absorber 310 and the groove wall of the limiting groove 110 (that is, the mounting shell 100) is point contact, so as to ensure that the heat sink 201 and the heat dissipation column 230 can be well aligned, thereby ensuring that the stator and rotor assembly 500 installed on the heat dissipation column 230 can be better aligned; and, the vibration generated during the operation of the blower assembly can be well transmitted to the mounting shell 100 through the abutting end wall 312, and the point contact can also play a certain role in vibration attenuation; in addition, the abutting end wall 312 of the shock absorber 310 is in point contact with the mounting shell 100 in the first direction X, so that there is a part of the abutting end wall 312 that is not in contact with the mounting shell 100, and thus there is an active gap between the abutting end wall 312 and the mounting shell 100, so as to meet the small movement of the shock absorber 310 relative to the mounting shell 100 in the first direction X.

[0087] Further optionally, the length of one end of the shock absorber 310 close to the central axis Z of the mounting shell 100 in the first direction X is smaller than the length of one end of the shock absorber 310 away from the central axis Z of the mounting shell 100 in the first direction X, that is, along the direction of the shock absorber 310 pointing to the central axis Z of the mounting shell 100, the length of the shock absorber 310 in the first direction X gradually decreases. In this way, on the one hand, the abutting position between the abutting end wall 312 and the limiting groove 110 is closer to the bottom of the limiting groove 110, which reduces the probability of abutment failure between the abutting end wall 312 and the limiting groove 110 due to vibration, and improves the reliability of the limiting shock absorber 310 of the limiting groove 110; on the other hand, at the position of the notch of the limiting groove 110, there is a large buffer space between the shock absorber 310 and the groove wall of the limiting groove 110, and the buffer space is used to buffer the vibration of the heat sink 200 to prevent the heat sink 201 from having a large collision with the groove wall of the limiting groove 110 during vibration, thereby reducing damage to the shock absorber 310 and avoiding the generation of large noise.

[0088] In this embodiment, the portion of the abutting end wall 312 that contacts the groove wall of the limiting groove 110 is arc-shaped so as to play a buffering role.

[0089] In some optional embodiments, please continue to see Figure 7 The outer wall of the shock absorber 310 has abutting protrusions 340, and the abutting protrusions 340 abut against the groove wall of the limiting groove 110. By providing the abutting protrusions 340 and abutting against the groove wall of the limiting groove 110, a plurality of buffer spaces can be formed between the shock absorber 310 and the groove wall of the limiting groove 110. The buffer spaces are used to buffer the collision between the heat sink 201 and the mounting shell 100, thereby reducing damage to the shock absorber 310 and avoiding the generation of large noise.

[0090] For example, Figure 7 and Figure 8 As shown, one or more abutment protrusions 340 are provided on the two outer side walls of the shock absorbing member 310 in the second direction Y and the outer side of the end wall away from the central axis Z of the mounting shell 100, so as to form a plurality of buffer spaces. The abutment protrusions 340 on the outer side walls of the shock absorbing member 310 in the second direction Y correspond one to one with the clamping blocks 321 in the pocket groove 311, and each abutment protrusion 340 coincides with the orthographic projection of the corresponding clamping block 321 in the first direction X.

[0091] Optionally, see Figure 7 and Figure 8The end surface of the shock absorbing member 310 facing the central axis Z of the mounting shell 100 is provided with a plurality of spaced extension protrusions 350, and the extension protrusions 350 can contact the portion of the heat sink 201 other than the fixing portion 210. In this embodiment, the length of the extension protrusion 350 is less than the length of the portion of the clamping block 321 outside the pocket groove 311. It should be noted that when the blower assembly is not in operation, the extension protrusion 350 does not contact the heat sink 201, and there is a gap between the two. When the blower assembly is in operation and the vibration amplitude is large, the portion of the heat sink 201 other than the fixing portion 210 will first squeeze the portion of the clamping block 321 outside the pocket groove 311, causing the portion to deform first, and then squeeze the extension protrusion 350, so that the cooperation between the extension protrusion 350 and the clamping block 321 forms a double buffer, further improving the shock absorption effect and noise reduction performance.

[0092] In some optional embodiments, the shock absorbing member 310 is an integrated structure, which is easy to manufacture on the one hand, and can have a higher shock absorbing strength on the other hand.

[0093] Alternatively, if Figure 3 As shown, the mounting shell 100 in this embodiment further includes a back cover 140. One side of the mounting shell body 130 has an assembly opening 1301, and the back cover 140 is disposed at the assembly opening 1301. The back cover 140 in this embodiment is provided with a first radial reinforcing rib 141, and the provision of the first reinforcing rib 141 can improve the structural strength of the back cover 140 and also has the effect of reducing noise.

[0094] Optionally, see Figure 3 The fan housing further includes an elastic sealing ring 400. The elastic sealing ring 400 is disposed at the edge of the rear cover 140 and is used for sealing and shock absorption between the rear cover 140 and the mounting shell body 130. In this embodiment, the elastic sealing ring 400 is fixedly connected to the edge of the rear cover 140.

[0095] Specifically, Figures 12 to 16As shown, the elastic sealing ring 400 has a skirt 410 and an extension 420. The skirt 410 extends toward the mounting shell body 130 and seals against the mounting shell body 130. The extension 420 extends toward the heat sink 200 and seals against the heat sink 200. Specifically, the skirt 410 seals against the second shell 132, and the extension 420 seals against the heat sink 201. In addition, the elastic sealing ring 400 seals the gap between the mounting shell body 130 and the back cover 140, and seals the gap between the heat sink 200 and the back cover 140, so as to form a relatively sealed mounting shell 100. In addition, the elastic sealing ring 400 is a structure with a certain elasticity, that is, the elastic sealing ring 400 is an elastic structure. For example, the material of the elastic sealing ring 400 can be an elastic material such as rubber or silicone. By providing the elastic sealing ring 400 , the elastic sealing ring 400 can buffer the impact between the mounting shell body 130 and the rear cover 140 , and can also buffer the impact between the rear cover 140 and the heat sink 201 , so as to have a higher noise reduction performance.

[0096] In the fan housing provided in this embodiment, the elastic sealing ring 400 is arranged on the rear cover 140, and the skirt 410 of the elastic sealing member extends toward the mounting shell body 130, and the extension portion 420 of the elastic sealing member extends toward the heat sink 200, so that the elastic sealing ring 400 can seal the gap between the mounting shell body 130 and the rear cover 140, and can also seal the gap between the heat sink 200 and the rear cover 140, so that the portion of the mounting shell body 130 close to the rear cover 140 can be more sealed, thereby improving the sealing performance of the mounting shell 100. Furthermore, when the blower assembly generates vibration during operation, the mounting shell body 130 and the rear cover 140, as well as the rear cover 140 and the heat sink 200 can be buffered by the elastic sealing ring 400, so that the mounting shell body 130 will not directly collide with the rear cover 140, and there will be no direct collision between the rear cover 140 and the heat sink 200, thereby reducing the impact noise of the fan casing, so that the fan casing and the blower assembly using the fan casing can have lower noise, which is conducive to the silent operation of the blower assembly.

[0097] Alternatively, if Fig.13 and Fig.14As shown, the skirt 410 is annular, and the shape of the skirt 410 is arc-shaped. The arc-shaped skirt 410 can produce a large elastic deformation, and thus can adapt to the change of the gap between the mounting shell body 130 and the back cover 140, and has high adaptability. Exemplarily, the skirt 410 is bent toward the bottom of the mounting shell 100. The skirt 410 in this embodiment includes a first arc surface 411, and the first arc surface 411 is sealed against the mounting shell body 130, so that the skirt 410 and the mounting shell body 130 have a large contact area, thereby improving the sealing performance, and when the mounting shell body 130 moves relative to the back cover 140, the skirt 410 can be squeezed by the first arc surface 411, so that the arc-shaped skirt 410 is deformed in the radial direction, so as to better buffer the vibration of the mounting shell body 130 and reduce noise.

[0098] In some optional embodiments, such as Fig.15 and Fig.16 As shown, the skirt 410 also includes a second curved surface 412 disposed opposite to the first curved surface 411. The first curved surface 411 and the second curved surface 412 are disposed opposite to each other in the second direction Y. The second curved surface 412 has a plurality of second reinforcing ribs 430 disposed at intervals along the circumferential direction of the elastic sealing ring 400. The second reinforcing ribs 430 are used to increase the structural strength of the skirt 410, so as to increase the anti-deformation ability of the skirt 410, so that the skirt 410 can be better supported between the mounting shell body 130 and the back cover 140, and further improve the anti-seismic performance and noise reduction performance of the mounting shell 100.

[0099] Further optionally, the second reinforcing rib 430 in the present embodiment extends from the inner edge of the skirt 410 to the outer edge of the skirt 410, that is, one end of the second reinforcing rib 430 extends to the side of the second arc surface 412 close to the axis of the elastic sealing ring 400, and the other end extends to the side of the second arc surface 412 away from the axis of the elastic sealing ring 400, so that the second reinforcing rib 430 has a better supporting effect.

[0100] In some optional embodiments, such as Fig.14 As shown, the elastic sealing ring 400 also includes a sealing ring body 440. The sealing ring body 440 is arranged at the edge of the back cover 140. The skirt 410 is connected to the outer side of the sealing ring body 440 in the ring direction, and the extension 420 is connected to the inner side of the sealing ring body 440 in the ring direction. The extension 420 in this embodiment includes a third arc surface 421, and the third arc surface 421 is sealed against the heat sink 200. By providing the third arc surface 421, the contact area between the extension 420 and the heat sink 200 can be increased, and the extension 420 can have a large deformation ability, so that the extension 420 can adapt to the change of the gap between the heat sink 200 and the back cover 140, thereby improving the sealing performance and noise reduction performance.

[0101] In some optional embodiments, such as Fig.17 As shown, the rear cover 140 includes a cover body 143 and a mounting boss 144 disposed on the edge of the cover body 143. At least part of the elastic sealing ring 400 is disposed on the mounting boss 144, for example, the sealing ring body 440 of the elastic sealing ring 400 is connected to the mounting boss 144. Fig.18 As shown, the mounting boss 144 has first clamping grooves 1441 arranged at circumferential intervals along the rear cover 140, and the elastic sealing ring 400 has a plurality of first elastic protrusions 450, and the plurality of first elastic protrusions 450 are clamped in the plurality of first clamping grooves 1441 one by one to achieve the connection between the mounting boss 144 and the elastic sealing ring 400, thereby improving the connection strength between the two and reducing the probability of the elastic sealing ring 400 being separated from the rear cover 140.

[0102] Further optionally, if Fig.17 and Fig.18 As shown, the mounting boss 144 includes a first boss surface 1442 and a second boss surface 1443 which are arranged opposite to each other in the axial direction (i.e., the second direction Y) of the rear cover 140. The first clamping groove 1441 is arranged on the first boss surface 1442, and the second boss surface 1443 is provided with a plurality of second clamping grooves 1444. The plurality of first clamping grooves 1441 and the plurality of second clamping grooves 1444 are alternately arranged in the circumferential direction of the rear cover 140, so that both the first clamping groove 1441 and the second clamping groove 1444 can be relatively deep. The elastic sealing ring 400 also includes a plurality of second elastic protrusions 460, and the plurality of second elastic protrusions 460 are clamped one by one in the plurality of second clamping grooves 1444. In this way, the connection strength between the elastic sealing ring 400 and the mounting boss 144 can be further improved. By limiting the elastic sealing ring 400 through the first clamping groove 1441 and the second clamping groove 1444, the elastic sealing ring 400 can be prevented from moving relative to the mounting boss 144 in the second direction Y, thereby achieving the limitation of the elastic sealing ring 400 in the second direction Y. In addition, the first clamping groove 1441 and the second clamping groove 1444 are alternately arranged in the circumferential direction of the rear cover 140, and the two are not connected, so that the first clamping groove 1441 and the second clamping groove 1444 can cooperate with each other to limit the movement of the elastic sealing ring 400 in the radial direction of the rear cover 140, thereby enabling the elastic sealing ring 400 to be firmly fixed on the mounting boss 144.

[0103] In some optional embodiments, when the elastic sealing ring 400 includes a sealing ring body 440, as shown in FIG. Fig.16As shown, one end surface of the sealing ring body 440 in the axial direction of the rear cover 140 is flush with the first boss surface 1442, and the other end surface of the sealing ring body 440 in the axial direction of the rear cover 140 is flush with the second boss surface 1443. In this way, on the one hand, the sealing ring body 440 and the mounting boss 144 can have a larger connection area, thereby ensuring the connection strength, and on the other hand, it can also reduce consumables.

[0104] For example, the elastic sealing ring 400 can be injection molded on the edge of the back cover 140, that is, the elastic sealing ring 400 is injection molded on the mounting boss 144 to further improve the connection strength between the elastic sealing ring 400 and the back cover 140 and reduce the probability of separation between the two. Of course, it is understandable that the elastic sealing ring 400 can also be connected to the back cover 140 in other ways, which is not limited in this embodiment.

[0105] Alternatively, if Figure 3 or Fig.17 As shown, the surface of the rear cover 140 facing the mounting shell body 130 is provided with a mounting groove 145, and the surface of the rear cover 140 facing away from the mounting shell body 130 is an outer cover surface 146. Among them, the groove bottom wall of the mounting groove 145 and the outer cover surface 146 are both provided with radial first reinforcing ribs 141. The first reinforcing ribs 141 are used to increase the structural strength of the rear cover 140, reduce the probability of damage to the rear cover 140, and ensure that the rear cover 140 is evenly stressed. The first reinforcing ribs 141 in this embodiment are radial, so as to evenly increase the structural strength of each part of the rear cover 140, thereby ensuring the overall strength of the rear cover 140.

[0106] In this embodiment, an energy absorbing groove 147 is provided at the bottom of the installation groove 145, and the energy absorbing groove 147 extends along the axial direction of the rear cover 140 and forms a reinforcing boss 142 on the outer cover surface 146, and the first reinforcing rib 141 is arranged to avoid the reinforcing boss 142. By providing the energy absorbing groove 147, the impact force on the rear cover 140 can be buffered, thereby reducing the noise of the entire fan housing.

[0107] The fan casing provided in this embodiment has an assembly opening 1301 of the mounting shell body 130 provided with a rear cover 140, so that the rear cover 140 can isolate the noise at the tail of the blower assembly from radiating outward, the arrangement of the first reinforcing rib 141 and the reinforcing boss 142 can ensure the structural strength of the rear cover 140, and at the same time can ensure the uniformity of the force on the rear cover 140, the energy absorption groove 147 at the bottom of the mounting groove 145 can buffer the impact force on the rear cover 140, and thus can further reduce the noise generated by the fan casing, so that the noise generated by the fan casing as a whole can be smaller, and the noise radiated outward is smaller, so that the blower assembly using the fan casing can achieve low-noise operation.

[0108] In some optional embodiments, there are multiple reinforcing bosses 142, that is, there are multiple energy absorbing grooves 147, and multiple reinforcing bosses 142 are axially symmetrically arranged on the outer cover surface 146 of the rear cover 140 to uniformly increase the structural strength of the rear cover 140 and uniformly buffer the impact force on the rear cover 140, further improving the force uniformity of the rear cover 140, so as to further reduce the noise of the entire fan housing. In this embodiment, there are two reinforcing bosses 142, and the two reinforcing bosses 142 are symmetrically arranged about the symmetry axis passing through the axis of the rear cover 140.

[0109] Alternatively, if Fig.17 As shown, a vertically connected horizontal plate 148 and vertical plate 149 are provided in the energy absorption groove 147. The horizontal plate 148 and vertical plate 149 divide the energy absorption groove 147 into a plurality of energy absorption sub-grooves (not shown in the figure). In this way, each energy absorption sub-groove can serve as an energy absorption space, and the impact force transmitted to the rear cover 140 is dispersed through the horizontal plate 148 and vertical plate 149, further improving the buffering effect of the energy absorption groove 147 and further improving the noise reduction effect.

[0110] It is understandable that the energy absorbing groove 147 may not be provided with the horizontal plate 148 and the vertical plate 149, and this embodiment does not limit this. When there are multiple energy absorbing grooves 147, some of the energy absorbing grooves 147 may be provided with the horizontal plate 148 and the vertical plate 149, and the other part of the energy absorbing grooves 147 may not be provided with the horizontal plate 148 and the vertical plate 149, and this embodiment does not limit this.

[0111] In this embodiment, the rear cover 140 cooperates with the heat sink 200 to form an accommodation space (not shown in the figure) for accommodating the circuit board 800. Specifically, the mounting groove 145 of the rear cover 140 cooperates with the heat sink 201 to form an accommodation space. The circuit board 800 is placed in the accommodation space. The rear cover 140 is also provided with a socket hole (not shown in the figure), which is used for the wiring seat 700 to pass through, so that the wiring seat 700 is smoothly electrically connected to the circuit board 800.

[0112] For example, Fig.18As shown, the outer cover surface 146 includes a first step surface 1461 and a second step surface 1462 arranged in a stepped shape. Among them, the first step surface 1461 is closer to the mounting shell body 130 than the second step surface 1462, that is, the second step surface 1462 is arranged protruding from the first step surface 1461. The second step surface 1462 includes a plane area (not shown in the figure) and a reinforcing rib area (not shown in the figure). Among them, the reinforcing boss 142 is arranged in the plane area, and the reinforcing rib area and the first step surface 1461 are both provided with a first reinforcing rib 141. By setting the outer cover surface 146 in a stepped shape, on the one hand, it is convenient to install the wiring seat 700, so that the socket of the wiring seat 700 can face one side of the rear cover 140 instead of the bottom of the rear cover 140. On the other hand, the stepped design of the outer cover surface 146 can form two sub-grooves with different depths in the mounting groove 145, further improving the energy absorption effect of the rear cover 140.

[0113] Alternatively, see Fig.18 A third reinforcing rib 14 a is provided between the first step surface 1461 and the second step surface 1462 , and the third reinforcing rib 14 a is used to increase the structural strength of the rear cover 140 .

[0114] Exemplarily, a third reinforcing rib 14 a is provided between the reinforcing boss 142 and the second stepped surface 1462 , and the third reinforcing rib 14 a is used to enhance the connection strength between the reinforcing boss 142 and the second stepped surface 1462 .

[0115] In some optional embodiments, such as Fig.19 As shown, the rear cover 140 is provided with a positioning column 150, and the outer peripheral surface of the positioning column 150 is provided with an elastic support protrusion 151. The heat sink 200 is provided with a positioning hole 220, the positioning column 150 is penetrated through the positioning hole 220, and the elastic support protrusion 151 can abut against the hole wall of the positioning hole 220. By providing the positioning column 150 and the positioning hole 220, it is convenient to position and install the rear cover 140 and the heat sink 200. In addition, by providing the elastic support protrusion 151, it is convenient to center the heat sink 201, and it can also prevent the hard collision between the positioning column 150 and the heat sink 201, so as to further reduce the noise generated during the operation of the fan housing.

[0116] The present invention also provides a vehicle air conditioning system, including the above blower assembly, which can have lower noise during operation and improve the comfort of use.

[0117] During the operation of the blower assembly provided in this embodiment, the circuit board 800 supplies current to the enameled wire 511. After the enameled wire 511 is energized, a magnetic field is generated, and the magnetic tile 520 is driven to rotate. The magnetic tile 520 drives the housing 530 and the impeller 600 to rotate through the rotating shaft 540 to achieve power output. When the stator and rotor assembly 500 is working, vibration will be generated, thereby driving the heat sink 200 to move relative to the mounting shell body 130 and the rear cover 140. The heat sink 200 is connected to the mounting shell body 130 through the shock absorber 310 to avoid collision between the heat sink 200 and the mounting shell body 130, thereby avoiding the generation of large noise. An elastic sealing ring 400 is provided between the heat sink 200 and the rear cover 140 to avoid direct collision between the heat sink 200 and the rear cover 140, thereby avoiding the generation of large noise. The skirt 410 of the elastic sealing ring 400 is located between the rear cover 140 and the mounting shell body 130, so that the collision between the mounting shell body 130 and the rear cover 140 can be avoided, and the generation of large noise can be avoided, so that the noise generated by the blower assembly provided in this embodiment can be small. In addition, the vibration of the stator and rotor assembly 500 can be evenly transmitted to the rear cover 140, and the rear cover 140 provided with the first reinforcing rib 141 and the reinforcing boss 142 has a high structural strength, which prevents the noise from being dissipated through the rear cover 140, and further reduces the noise of the blower assembly as a whole.

[0118] Note that the above are only preferred embodiments of the present invention and the technical principles used. Those skilled in the art will understand that the present invention is not limited to the specific embodiments described herein, and that various obvious changes, readjustments and substitutions can be made by those skilled in the art without departing from the scope of protection of the present invention. Therefore, although the present invention has been described in more detail through the above embodiments, the present invention is not limited to the above embodiments, and may include more other equivalent embodiments without departing from the concept of the present invention, and the scope of the present invention is determined by the scope of the appended claims.

Claims

1. A fan housing, characterized in that: include: An installation shell (100), the installation shell (100) being provided with a plurality of limiting grooves (110), and the installation shell (100) having an installation space (120) for installing a stator and rotor assembly (500); A heat sink (200) comprising a heat sink (201) located in the mounting shell (100), wherein the edge of the heat sink (201) has a plurality of fixing portions (210); A shock absorbing assembly (300), comprising a plurality of shock absorbing members (310), wherein the plurality of shock absorbing members (310) are arranged at intervals along a first direction (X), the shock absorbing members (310) are arranged correspondingly in the limiting groove (110), and the end of the shock absorbing member (310) in the first direction (X), the end in the second direction (Y) and an end away from the central axis (Z) of the mounting shell (100) are all in contact with the groove wall of the limiting groove (110), and a pocket groove (311) is provided at one end of the shock absorbing member (310) facing the central axis (Z) of the mounting shell (100), the pocket grooves (311) of the plurality of shock absorbing members (310) correspond one-to-one to the plurality of fixing portions (210), and each fixing portion (210) is limited in the pocket groove (311) corresponding thereto; The first direction (X) is the circumferential direction of the mounting shell (100), the second direction (Y) is perpendicular to the first direction (X), and the second direction (Y) is the axial direction of the mounting shell (100).

2. The fan housing according to claim 1, characterized in that: The fixing portion (210) is clamped in the corresponding pocket groove (311) in the second direction (Y).

3. The fan housing according to claim 2, characterized in that: The shock absorbing member (310) has at least one clamping group (320), at least a portion of each clamping group (320) is located in the pocket groove (311), the clamping group (320) includes two clamping blocks (321) arranged opposite to each other in the second direction (Y), and the fixing portion (210) is clamped between the two clamping blocks (321).

4. The fan housing according to claim 3, characterized in that: The fixing portion (210) is provided with a plurality of protrusions (211) on both surfaces in the second direction (Y); the plurality of protrusions (211) are arranged at intervals along the first direction (X) and are all located in the pocket groove (311); and a clamping block (321) is provided between two protrusions (211) located on the same surface and adjacent to each other in the first direction (X).

5. The fan housing according to any one of claims 1 to 4, characterized in that: The shock absorbing member (310) is provided with a mounting through hole (330) penetrating the shock absorbing member (310) along the second direction (Y); the inner wall of the mounting through hole (330) is provided with a plurality of ridges (331) extending along the second direction (Y); and the mounting shell (100) has a shock absorbing column (1311) penetrating the mounting through hole (330).

6. The fan housing according to claim 5, characterized in that: The pocket groove (311) has an arc-shaped groove wall (3111), the arc-shaped groove wall (3111) is bent away from the central axis (Z) of the mounting shell (100), and the fixing portion (210) includes an arc-shaped matching surface (212), the arc-shaped matching surface (212) is in abutment with the arc-shaped groove wall (3111).

7. The fan housing according to any one of claims 1 to 4, characterized in that: The two abutting end walls (312) of the shock absorbing member (310) in the first direction (X) are both inclined walls, and the length of one end of the shock absorbing member (310) close to the central axis (Z) of the mounting shell (100) in the first direction (X) is smaller than the length of one end of the shock absorbing member (310) far from the central axis (Z) of the mounting shell (100) in the first direction (X).

8. The fan housing according to claim 1, characterized in that: The outer wall of the shock absorbing member (310) has an abutment protrusion (340), and the abutment protrusion (340) abuts against the groove wall of the limiting groove (110); and / or, the end surface of the shock absorbing member (310) facing the central axis (Z) of the mounting shell (100) is provided with an extended protrusion (350), and the extended protrusion (350) can contact the part of the heat dissipation plate (201) other than the fixing part (210).

9. The blower assembly is characterized in that: It comprises a fan casing as described in any one of claims 1 to 8.

10. A vehicle air conditioning system, characterized in that: It comprises a fan casing as described in any one of claims 1 to 8.

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