Fan and vehicle air conditioning system having the same

Abstract

The present invention provides a fan and a vehicle air conditioning system having the same. The fan is used in the vehicle air conditioning system, and the fan includes: a bracket, having an opening and a mounting hole connected to the opening; a motor fan blade assembly, connected to the bracket, the motor fan blade assembly includes a motor body, a lead terminal and a fan blade, the fan blade is connected to the rotor part of the motor body and is located in the opening, the motor body has a mounting surface for mounting the lead terminal, the mounting surface is located on the side of the motor body away from the fan blade; the lead terminal and the mounting surface are located in the mounting hole; a shielding structure, connected to the bracket, the shielding structure includes a shielding body and a wire passing portion arranged on the shielding body, the shielding body is used to shield the mounting surface and at least part of the lead terminal, and the wire passing portion has a wire passing space for the wire of the lead terminal to pass through. The present invention effectively solves the problem in the prior art that dust, rainwater, etc. easily enter the motor and affect the normal operation of the fan.

Description

Technical Field

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

[0002] At present, the fan of the vehicle air conditioning system is connected to the outside of the vehicle body to supply air to the inside of the vehicle body. However, during the driving of the vehicle, there is a phenomenon that dust solid particles and liquids such as rainwater enter the fan through the air inlet of the fan.

[0003] In order to solve the above problem, grille protection blades are set at the air inlet of the fan. However, the grille protection blades cannot protect the motor inside the fan. Once water enters the motor, it is very easy to cause a short circuit in the fan, which not only affects the service life of the fan, but also causes the fan to malfunction and cannot be used normally. Summary of the invention

[0004] The main purpose of the present invention is to provide a fan and a vehicle air conditioning system having the same, so as to solve the problem in the prior art that dust, rainwater, etc. easily enter the motor and affect the normal operation of the fan.

[0005] In order to achieve the above-mentioned purpose, according to one aspect of the present invention, there is provided a fan for a vehicle air-conditioning system, the fan comprising: a bracket having an opening and a mounting hole connected to the opening; a motor fan blade assembly connected to the bracket, the motor fan blade assembly comprising a motor body, a lead terminal and a fan blade, the fan blade being connected to the rotor portion of the motor body and being located in the opening, the motor body having a mounting surface for mounting the lead terminal, the mounting surface being located on a side of the motor body away from the fan blade; the lead terminal and the mounting surface being located in the mounting hole; a shielding structure connected to the bracket, the shielding structure comprising a shielding body and a wire passing portion arranged on the shielding body, the shielding body being used to shield the mounting surface and at least part of the lead terminal, the wire passing portion having a wire passing space for the wire of the lead terminal to pass through.

[0006] Furthermore, the bracket includes: an annular bracket body having an opening; a mounting ring located on the inner side of the annular bracket body and connected to the annular bracket body, the inner circumference of the mounting ring forms a mounting hole, and the shielding structure is detachably connected to the outer circumference of the mounting ring.

[0007] Furthermore, a mounting recess is provided on the outer peripheral surface of the mounting ring, and the shielding structure also includes an extension portion, which is provided on the side of the shielding body facing the mounting surface. The extension portion extends into the mounting recess and cooperates with the mounting recess to connect the shielding structure and the bracket.

[0008] Furthermore, there are a plurality of mounting recesses, which are arranged at intervals along the outer circumferential surface of the mounting ring; there are a plurality of extension portions, which are arranged in one-to-one correspondence with the plurality of mounting recesses.

[0009] Furthermore, the mounting recess includes a first groove section and a second groove section which are interconnected, and a step surface is formed at the connection between the first groove section and the second groove section. The extension portion includes: an extension body, a first end of the extension body is connected to the shielding body; a hook-shaped protrusion is arranged at the second end of the extension body, and after the hook-shaped protrusion extends into the second groove section through the first groove section, the hook-shaped protrusion and the step surface are limited and stopped.

[0010] Furthermore, the bracket also includes a wire recess, one end of the wire recess extends to the annular bracket body, and the other end of the wire recess extends to the mounting ring. The fan also includes a wire blocking structure, which is arranged in the wire recess and forms a wire blocking space between the wire recess, and the wire is located in the wire blocking space.

[0011] Furthermore, the wire passing portion is pressed on the wire recess, and the wire passing space is communicated with the wire recess.

[0012] Furthermore, the wire-passing portion includes: a first plate body, connected to the shielding body; a second plate body, arranged on the first plate body and having a first avoidance opening; a third plate body, arranged on the first plate body and having a second avoidance opening, the second plate body and the third plate body are arranged opposite to each other, and the first plate body, the second plate body and the third plate body are surrounded to form a wire-passing space; wherein the first avoidance opening and the second avoidance opening are used to avoid the mounting ring.

[0013] Furthermore, the shielding body is in a plate shape, and a preset angle a is formed between the first plate body and a plate surface of the shielding body away from the installation surface, and the preset angle a is greater than 90° and less than 180°.

[0014] Furthermore, the end surface of the mounting ring facing the shielding body is protruded from the mounting surface to be used for limiting and stopping the shielding structure.

[0015] Furthermore, the mounting recess includes a guide groove section and a stop groove section which are interconnected, and both the guide groove section and the stop groove section extend along the circumference of the mounting ring, and the groove width of the guide groove section is greater than the groove width of the stop groove section; wherein, after the portion to be extended slides into the stop groove section through the guide groove section, it cooperates with the groove wall of the stop groove section to limit the position.

[0016] Furthermore, the shielding structure further includes: reinforcing ribs, which are arranged on the shielding body and are in a ring shape; or, the reinforcing ribs include a plurality of arc segments which are arranged at intervals along the circumference of the shielding body.

[0017] According to another aspect of the present invention, a vehicle air conditioning system is provided, comprising the above-mentioned fan.

[0018] By applying the technical solution of the present invention, the motor body has a mounting surface for mounting the lead terminals, and the shielding body of the shielding structure is used to shield the mounting surface and at least part of the lead terminals to prevent dust, rainwater, etc. from contacting the lead terminals, or entering the motor body through the mounting surface, or contacting the lead terminals through the mounting surface, thereby preventing short circuits from occurring in the motor blade assembly. This solves the problem in the prior art that dust, rainwater, etc. are easily able to enter the motor and affect the normal operation of the fan, thereby improving the operating reliability of the fan and extending the service life of the fan. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The drawings constituting a part of the present application are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0020] Figure 1 A schematic diagram of the three-dimensional structure of an embodiment of a fan according to the present invention is shown;

[0021] Figure 2 Shows Figure 1 AA section view of the fan in FIG.

[0022] Figure 3 Shows Figure 2 The enlarged schematic diagram of the fan at point B;

[0023] Figure 4 Shows Figure 1 A schematic diagram of the three-dimensional structure of the shielding structure of the fan;

[0024] Figure 5 Shows Figure 4 CC section view of the shielding structure;

[0025] Figure 6 Shows Figure 1 A schematic diagram of the three-dimensional structure of a support of a fan;

[0026] Figure 7 Shows Figure 6 DD section view of the bracket;

[0027] Figure 8 Shows Figure 1 Exploded view of the fan in Figure 1;

[0028] Fig. 9 Shows Figure 1 A schematic diagram of the three-dimensional structure of the fan motor blade assembly and the bracket after assembly; and

[0029] Fig.10 Shows Figure 1 Schematic diagram of the three-dimensional structure of the motor blade assembly of the fan.

[0030] The above drawings include the following reference numerals:

[0031] 10. Bracket; 11. Opening; 12. Mounting hole; 13. Ring-shaped bracket body; 14. Mounting ring; 141. Mounting recess; 1411. First slot section; 1412. Second slot section; 15. Wire recess; 20. Motor fan blade assembly; 21. Motor body; 211. Threaded hole; 22. Lead end; 221. Wire; 23. Fan blade; 24. Mounting surface; 30. Shielding structure; 31. Shielding body; 32. Wire passing part; 321. Wire passing space; 322. First plate body; 323. Second plate body; 3231. First avoidance opening; 324. Third plate body; 3241. Second avoidance opening; 33. Extension part; 331. Extension body; 332. Hook-shaped protrusion; 34. Reinforcement rib; 40. Wire blocking structure; 50. Fastener. DETAILED DESCRIPTION

[0032] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0033] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meanings as commonly understood by ordinary technicians in the technical field to which this application belongs.

[0034] In the present invention, unless otherwise specified, the directional words used, such as "up" and "down", usually refer to the directions shown in the drawings, or to the vertical, perpendicular or gravity directions; similarly, for ease of understanding and description, "left" and "right" usually refer to the left and right shown in the drawings; "inside" and "outside" refer to the inside and outside relative to the outline of each component itself, but the above directional words are not used to limit the present invention.

[0035] In order to solve the problem in the prior art that dust, rainwater, etc. easily enter the motor and affect the normal operation of the fan, the present application provides a fan and a vehicle air-conditioning system having the same.

[0036] like Figures 1 to 10As shown, the fan is used in a vehicle air conditioning system, and the fan includes a bracket 10, a motor fan blade assembly 20 and a shielding structure 30. Among them, the bracket 10 has an opening 11 and a mounting hole 12 connected to the opening 11. The motor fan blade assembly 20 is connected to the bracket 10, and the motor fan blade assembly 20 includes a motor body 21, a lead terminal 22 and a fan blade 23. The fan blade 23 is connected to the rotor part of the motor body 21 and is located in the opening 11. The motor body 21 has a mounting surface 24 for mounting the lead terminal 22, and the mounting surface 24 is located on the side of the motor body 21 away from the fan blade 23; the lead terminal 22 and the mounting surface 24 are located in the mounting hole 12. The shielding structure 30 is connected to the bracket 10, and the shielding structure 30 includes a shielding body 31 and a wire passing portion 32 arranged on the shielding body 31. The shielding body 31 is used to shield at least part of the lead terminal 22 on the mounting surface 24, and the wire passing portion 32 has a wire passing space 321 for the wire 221 of the lead terminal 22 to pass through.

[0037] By applying the technical solution of this embodiment, the motor body 21 has a mounting surface 24 for mounting the lead terminal 22, and the shielding body 31 of the shielding structure 30 is used to shield the mounting surface 24 and at least part of the lead terminal 22 to prevent dust, rainwater, etc. from contacting the lead terminal 22, or entering the motor body 21 through the mounting surface 24, or contacting the lead terminal 22 through the mounting surface 24, thereby preventing a short circuit from occurring in the motor blade assembly 20. This solves the problem in the prior art that dust, rainwater, etc. are easily introduced into the motor and affect the normal operation of the fan, thereby improving the operating reliability of the fan and extending the service life of the fan.

[0038] like Figure 1 , Figure 2 and Figures 6 to 8 As shown, the bracket 10 includes an annular bracket body 13 and a mounting ring 14. Among them, the annular bracket body 13 has an opening 11. The mounting ring 14 is located on the inner side of the annular bracket body 13 and is connected to the annular bracket body 13. The inner circumference of the mounting ring 14 forms a mounting hole 12, and the shielding structure 30 is detachably connected to the outer circumference of the mounting ring 14. In this way, the annular bracket body 13 is used to cover part of the motor body 21 and the fan blades 23 to form an air duct, ensuring that the fan can discharge air normally, thereby improving the operating reliability of the fan. At the same time, part of the motor body 21 extends into the mounting hole 12 for installing the lead terminal 22, thereby ensuring that the motor fan blade assembly 20 can be connected to the power supply, so that the routing of the wire 221 is neater.

[0039] Specifically, the annular bracket body 13 and the mounting ring 14 are connected by a plurality of connecting ribs, which ensures that the fan can normally take in air; on the other hand, the structure of the bracket 10 is simpler, realizing a lightweight design of the fan. The above-mentioned connection method between the shielding structure 30 and the bracket 10 makes the disassembly and assembly of the shielding structure 30 and the bracket 10 easier and simpler, reducing the difficulty of disassembly and assembly.

[0040] In this embodiment, the annular support body 13 and the mounting ring 14 are coaxially arranged.

[0041] like Figure 1 , Figures 3 to 9 As shown, a mounting recess 141 is provided on the outer circumferential surface of the mounting ring 14, and the shielding structure 30 further includes an extension 33, which is provided on the side of the shielding body 31 facing the mounting surface 24, and the extension 33 extends into the mounting recess 141 and cooperates with the mounting recess 141 to connect the shielding structure 30 and the bracket 10. In this way, the above arrangement makes the structure of the bracket 10 and the shielding structure 30 simpler, easier to process and realize, and reduces the processing cost of the fan; on the other hand, it makes the disassembly and assembly of the bracket 10 and the shielding structure 30 easier and simpler, and reduces the difficulty of disassembly and assembly.

[0042] Specifically, when the shielding structure 30 needs to be installed on the bracket 10 to shield the mounting surface 24 and part of the lead end 22, the extension portion 33 is set toward the bracket 10 and extended into the mounting recess 141 until the extension portion 33 and the mounting recess 141 are limited and stopped to achieve the assembly of the shielding structure 30 and the bracket 10.

[0043] It should be noted that the structures of the shielding structure 30 and the mounting ring 14 are not limited thereto, and can be adjusted according to working conditions and usage requirements. In other embodiments not shown in the accompanying drawings, an extension portion is provided on the outer peripheral surface of the mounting ring, and the shielding structure also includes a mounting recess, and the extension portion is provided on the side of the mounting ring facing the shielding structure, and the extension portion extends into the mounting recess and cooperates with the mounting recess to connect the shielding structure and the bracket. In this way, the above-mentioned arrangement, on the one hand, makes the structure of the bracket and the shielding structure simpler, easier to process and realize, and reduces the processing cost of the fan; on the other hand, it makes the disassembly and assembly of the bracket and the shielding structure easier and simpler, and reduces the difficulty of disassembly and assembly.

[0044] Optionally, there are multiple mounting recesses 141, and the multiple mounting recesses 141 are arranged at intervals along the outer circumferential surface of the mounting ring 14. There are multiple extensions 33, and the multiple extensions 33 are arranged one-to-one with the multiple mounting recesses 141. In this way, the above arrangement improves the connection stability between the bracket 10 and the shielding structure 30, so as to prevent the shielding structure 30 from falling off from the bracket 10 and causing dust, rainwater, etc. to enter the motor fan blade assembly 20.

[0045] In this embodiment, there are four mounting recesses 141, which are arranged at intervals along the outer circumferential surface of the mounting ring 14. There are four extensions 33, which are arranged one-to-one corresponding to the four mounting recesses 141. In this way, the above arrangement makes the structure of the bracket 10 and the shielding structure 30 simpler, easier to process and realize, and reduces the processing cost of the fan.

[0046] It should be noted that the number of the extension parts 33 is not limited thereto, and can be adjusted according to working conditions and usage requirements. Optionally, the number of the extension parts 33 is two, three, five, six, or more.

[0047] It should be noted that the number of the mounting recesses 141 is not limited thereto, and only needs to be consistent with the number of the extension portions 33. Optionally, the number of the mounting recesses 141 is two, three, five, six, or more.

[0048] like Figure 7 As shown, the mounting recess 141 includes a first slot section 1411 and a second slot section 1412 that are interconnected, and a step surface is formed at the connection between the first slot section 1411 and the second slot section 1412. The extension portion 33 includes an extension body 331 and a hook-shaped protrusion 332. Among them, the first end of the extension body 331 is connected to the shielding body 31. The hook-shaped protrusion 332 is arranged at the second end of the extension body 331. After the hook-shaped protrusion 332 extends into the second slot section 1412 through the first slot section 1411, the hook-shaped protrusion 332 and the step surface are limited and stopped. In this way, the above-mentioned arrangement ensures that the extension portion 33 can extend into the mounting recess 141 on the one hand, so that the hook-shaped protrusion 332 and the mounting recess 141 are limited and matched; on the other hand, the connection stability between the shielding structure 30 and the bracket 10 is improved, and the shielding structure 30 and the bracket 10 are prevented from being separated from each other, which affects the structural stability of the fan, and even affects the normal operation of the fan.

[0049] Specifically, the first groove section 1411 and the second groove section 1412 extend along the thickness direction of the mounting ring 14. When the extension portion 33 extends into the mounting recess 141, the first groove section 1411 can guide the extension body 331 to guide the hook-shaped protrusion 332 into the second groove section 1412. At this time, the hook-shaped protrusion 332 can cooperate with the step surface to limit the position, thereby realizing the assembly of the shielding structure 30 and the bracket 10.

[0050] Optionally, the hook-shaped protrusion 332 is a cone-shaped structure, a spherical structure, or a polygonal structure.

[0051] like Figure 1 , Figure 6 , Figure 8 and Fig. 9As shown, the bracket 10 also includes a wire recess 15, one end of which extends to the annular bracket body 13, and the other end of which extends to the mounting ring 14. The fan also includes a wire blocking structure 40, which is arranged in the wire recess 15 and forms a wire blocking space with the wire recess 15, and the wire 221 is located in the wire blocking space. In this way, the wire recess 15 can accommodate and guide the wire 221, so that the routing of the wire 221 is neater, and can also prevent the wire 221 from interfering with the fan blade 23 and affecting the normal operation of the fan.

[0052] Specifically, a wire blocking space is formed between the wire blocking structure 40 and the wire recess 15 for limiting and guiding the wire 221, so that the routing of the wire 221 on the fan is more beautiful and neat, which facilitates the staff to replace and disassemble the lead end 22, reducing the difficulty of operation for the staff.

[0053] In this embodiment, the wire passing portion 32 is pressed on the wire recess 15, and the wire passing space 321 is connected to the wire recess 15. In this way, the wire passing portion 32 can press and limit the wire 221 led out from the lead end 22 to prevent the wire 221 from tilting and affecting the subsequent routing. At the same time, the above arrangement improves the connection stability between the shielding structure 30 and the bracket 10, prevents the two from moving or shifting each other, and thus improves the structural stability of the fan.

[0054] like Figure 4 and Figure 5 As shown, the wire passing portion 32 includes a first plate 322, a second plate 323 and a third plate 324. The first plate 322 is connected to the shielding body 31. The second plate 323 is arranged on the first plate 322 and has a first avoidance opening 3231. The third plate 324 is arranged on the first plate 322 and has a second avoidance opening 3241. The second plate 323 and the third plate 324 are arranged opposite to each other, and the first plate 322, the second plate 323 and the third plate 324 are surrounded to form a wire passing space 321. Among them, the first avoidance opening 3231 and the second avoidance opening 3241 are used to avoid the mounting ring 14. In this way, the above-mentioned setting ensures that the wire passing portion 32 can guide and limit the wire 221, thereby improving the wire passing reliability of the wire passing portion 32; on the other hand, the structure of the wire passing portion 32 is simpler, easy to process and realize, and the processing cost and difficulty of the shielding structure 30 are reduced.

[0055] Specifically, the second plate 323 and the third plate 324 are both arc-shaped plates, and the centers of the two are located outside the wire passing space 321, so that the wire passing space 321 is closed, thereby facilitating the wire passing portion 32 to guide and limit the wire 221.

[0056] Optionally, the shielding body 31 is plate-shaped, and a preset angle a is formed between the first plate 322 and the plate surface of the shielding body 31 away from the mounting surface 24, and the preset angle a is greater than 90° and less than 180°. In this way, even if rainwater or dust falls on the first plate 322, the above arrangement prevents rainwater or dust from entering the motor fan blade assembly 20 through the wire passing space 321, further improving the shielding reliability of the shielding structure 30; on the other hand, rainwater or dust slides down onto the shielding body 31 under its own weight, so as to keep rainwater or dust away from the wire passing space 321.

[0057] In this embodiment, the preset angle a is 100° to avoid stress concentration at the connection between the first plate 322 and the shielding body 31, thereby improving the structural strength of the shielding structure 30 and extending the service life of the shielding structure 30; on the other hand, it makes the processing of the shielding structure 30 easier and simpler, reducing the processing difficulty.

[0058] It should be noted that the value of the preset angle a is not limited thereto and can be adjusted according to working conditions and usage requirements. Optionally, the preset angle a is 95°, or 120°, or 145°, or 160°, or 175°.

[0059] like Figure 2 As shown, the end surface of the mounting ring 14 facing the shielding body 31 is protruded from the mounting surface 24, so as to limit and stop the shielding structure 30. In this way, during the assembly of the shielding structure 30 and the bracket 10, the end surface of the mounting ring 14 facing the shielding body 31 can limit and stop the shielding body 31, so as to prevent the shielding body 31 from colliding with the mounting surface 24 and the lead terminal 22, thereby causing structural damage to the motor fan blade assembly 20.

[0060] In other embodiments not shown in the accompanying drawings, the mounting recess includes a guide groove section and a stop groove section that are interconnected, and the guide groove section and the stop groove section both extend along the circumference of the mounting ring, and the groove width of the guide groove section is greater than the groove width of the stop groove section. Among them, the portion to be extended 33 slides into the stop groove section through the guide groove section and then cooperates with the groove wall of the stop groove section. In this way, during the assembly process of the extension portion and the mounting recess, the guide groove section is used to guide the extension portion to ensure that the extension portion can enter the stop groove section, which is convenient for the staff to disassemble and assemble the shielding structure and the bracket, reducing the difficulty and time of disassembly and assembly.

[0061] Optionally, the shielding structure 30 further includes a reinforcing rib 34. The reinforcing rib 34 is arranged on the shielding body 31, and the reinforcing rib 34 is annular; or, the reinforcing rib 34 includes a plurality of arc segments arranged at intervals along the circumference of the shielding body 31. In this way, the above arrangement increases the structural strength of the shielding structure 30, thereby extending the service life of the shielding structure 30. At the same time, the above arrangement makes the structure of the reinforcing rib 34 more diverse to meet different working conditions and usage requirements.

[0062] In this embodiment, the reinforcing rib 34 includes four arc segments spaced apart along the circumference of the shielding body 31 , so that the structure of the reinforcing rib 34 is simpler, easier to process and realize, and the processing cost of the shielding structure 30 is reduced.

[0063] It should be noted that the number of the reinforcing ribs 34 is not limited thereto, and can be adjusted according to working conditions and usage requirements. Optionally, the number of the reinforcing ribs 34 is two, three, five, or more.

[0064] In this embodiment, the four reinforcing ribs 34 and the four extending portions 33 are alternately arranged, which further improves the structural strength of the shielding structure 30 and prolongs the service life of the shielding structure 30 .

[0065] Optionally, the shielding structure 30 is made of non-metallic material. Thus, the above arrangement enables the extension portion 33 to undergo a certain elastic deformation when the shielding structure 30 is installed or disassembled, so that the shielding structure 30 is easy to install and disassemble.

[0066] Optionally, the shielding structure 30 is made of polyester or nylon.

[0067] Optionally, the shielding structure 30 is made of a metal material with a certain elasticity. Thus, the above arrangement makes the extension portion 33 less likely to break, thereby preventing the shielding structure 30 from falling off the bracket 10.

[0068] Optionally, the shielding structure 30 is made of aluminum.

[0069] like Fig. 9 and Fig.10 As shown, the fan further includes a fastener 50, and the motor body 21 has a threaded hole 211. The fastener 50 is inserted through the threaded hole 211 and the bracket 10 to connect the motor blade assembly 20 and the bracket 10. Optionally, the fastener 50 is a screw or a bolt.

[0070] The present application also provides a vehicle air-conditioning system (not shown), comprising the above-mentioned fan.

[0071] From the above description, it can be seen that the above embodiments of the present invention achieve the following technical effects:

[0072] The motor body has a mounting surface for mounting the lead terminals, and the shielding body of the shielding structure is used to shield the mounting surface and at least part of the lead terminals to prevent dust, rain, etc. from contacting the lead terminals, or entering the motor body through the mounting surface, or contacting the lead terminals through the mounting surface, thereby preventing short circuits from occurring in the motor blade assembly. This solves the problem in the prior art that dust, rain, etc. can easily enter the motor and affect the normal operation of the fan, thereby improving the operating reliability of the fan and extending the service life of the fan.

[0073] Obviously, the above-described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present invention.

[0074] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0075] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the numbers used in this way can be interchanged where appropriate, so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein.

[0076] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A fan for a vehicle air conditioning system, characterized in that: The fan comprises: A bracket (10) having an opening (11) and a mounting hole (12) communicating with the opening (11); A motor fan blade assembly (20) is connected to the bracket (10), the motor fan blade assembly (20) comprising a motor body (21), a lead terminal (22) and a fan blade (23), the fan blade (23) being connected to the rotor portion of the motor body (21) and being located in the opening (11), the motor body (21) having a mounting surface (24) for mounting the lead terminal (22), the mounting surface (24) being located on a side of the motor body (21) away from the fan blade (23); the lead terminal (22) and the mounting surface (24) being located in the mounting hole (12); a shielding structure (30) connected to the bracket (10), the shielding structure (30) comprising a shielding body (31) and a wire passing portion (32) arranged on the shielding body (31), the shielding body (31) being used to shield the mounting surface (24) and at least a portion of the lead end (22), the wire passing portion (32) having a wire passing space (321) for a wire (221) of the lead end (22) to pass through; The line-passing portion (32) comprises: A first plate (322) connected to the shielding body (31); A second plate body (323), disposed on the first plate body (322) and having a first avoidance opening (3231); A third plate (324) is disposed on the first plate (322) and has a second avoidance opening (3241); the second plate (323) and the third plate (324) are disposed opposite to each other; the first plate (322), the second plate (323) and the third plate (324) surround and form the wire passing space (321); The shielding body (31) is in the shape of a plate, and the first plate body (322) and a plate surface of the shielding body (31) away from the mounting surface (24) are arranged at a preset angle a.

2. The fan according to claim 1, characterized in that: The support (10) comprises: An annular support body (13) having the opening (11); The mounting ring (14) is located on the inner side of the annular bracket body (13) and is connected to the annular bracket body (13); the inner circumference of the mounting ring (14) forms the mounting hole (12); and the shielding structure (30) is detachably connected to the outer circumference of the mounting ring (14).

3. The fan according to claim 2, characterized in that: A mounting recess (141) is provided on the outer peripheral surface of the mounting ring (14); the shielding structure (30) further comprises an extension portion (33); the extension portion (33) is provided on a side of the shielding body (31) facing the mounting surface (24); the extension portion (33) extends into the mounting recess (141) and is limitedly engaged with the mounting recess (141) to connect the shielding structure (30) and the bracket (10).

4. The fan according to claim 3, characterized in that: There are a plurality of mounting recesses (141), and the plurality of mounting recesses (141) are arranged at intervals along the outer peripheral surface of the mounting ring (14); there are a plurality of extension portions (33), and the plurality of extension portions (33) are arranged in a one-to-one correspondence with the plurality of mounting recesses (141).

5. The fan according to claim 3, characterized in that: The mounting recess (141) comprises a first groove section (1411) and a second groove section (1412) which are connected to each other, a step surface is formed at the connection between the first groove section (1411) and the second groove section (1412), and the extension portion (33) comprises: An extending body (331), wherein a first end of the extending body (331) is connected to the shielding body (31); The hook-shaped protrusion (332) is arranged at the second end of the extension body (331), and after the hook-shaped protrusion (332) passes through the first groove section (1411) and extends into the second groove section (1412), the hook-shaped protrusion (332) and the step surface are limited and stopped.

6. The fan according to claim 2, characterized in that: The bracket (10) further comprises a wire recess (15), one end of which extends to the annular bracket body (13), and the other end of which extends to the mounting ring (14). The fan further comprises a wire blocking structure (40), which is arranged in the wire recess (15) and forms a wire blocking space between the wire recess (15) and the wire (221); the wire (221) is located in the wire blocking space.

7. The fan according to claim 6, characterized in that: The wire passing portion (32) is pressed onto the wire recess (15), and the wire passing space (321) is in communication with the wire recess (15).

8. The fan according to claim 2, characterized in that: The first avoidance opening (3231) and the second avoidance opening (3241) are used to avoid the mounting ring (14).

9. The fan according to claim 8, characterized in that: The preset angle a is greater than 90° and less than 180°.

10. The fan according to claim 2, characterized in that: The end surface of the mounting ring (14) facing the shielding body (31) is arranged to protrude from the mounting surface (24) so ​​as to limit and stop the shielding structure (30).

11. The fan according to claim 3, characterized in that: The mounting recess (141) comprises a guide groove section and a stop groove section which are interconnected, wherein the guide groove section and the stop groove section both extend along the circumference of the mounting ring (14), and the groove width of the guide groove section is greater than the groove width of the stop groove section; wherein, after the extension portion (33) slides into the stop groove section through the guide groove section, it is limitedly engaged with the groove wall of the stop groove section.

12. The fan according to claim 1, characterized in that: The shielding structure (30) further comprises: A reinforcing rib (34) is arranged on the shielding body (31), and the reinforcing rib (34) is annular; or the reinforcing rib (34) includes a plurality of arc segments arranged at intervals along the circumference of the shielding body (31).

13. A vehicle air conditioning system, characterized in that: The invention comprises the fan according to any one of claims 1 to 12.

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