Bolt safety type automobile air conditioner fan

Abstract

The utility model discloses a bolt safety type automobile air conditioner fan which comprises a tray, a motor and a wind wheel, the wind wheel is installed on a rotating shaft of the motor, an annular installation ring is arranged on the tray, the motor comprises a rotor and a stator, the stator is sleeved on the installation ring in a non-rotating mode, the rotor comprises an end cover, a rotating shaft and magnets which are evenly distributed on the inner circumferential wall of the end cover, and the end cover is sleeved on the rotor. The stator comprises an iron core, an upper iron core frame and a lower iron core frame, the upper iron core frame and the lower iron core frame are plastic parts, the inner hole wall of the iron core and the outer wall of the mounting ring are positioned in a concave-convex insertion fit mode, and the upper iron core frame and the lower iron core frame are made of plastic parts. Arc-shaped rebounding parts are evenly distributed on the circumference of the circumferential wall of the upper iron core frame, bolts are arranged on the inner end walls of the rebounding parts in a protruding mode, clamping grooves corresponding to the bolts are formed in the outer wall of the installation ring, and the bolts are inserted into the clamping grooves. The structure is simple, reliable and convenient to assemble.

Description

Technical Field

[0001] The utility model relates to the field of automobile air-conditioning systems, in particular to a latch-safe automobile air-conditioning fan. Background Art

[0002] The structure of the automotive air-conditioning fan mainly includes a tray, a motor and a wind wheel installed on the motor. The motor is installed on the tray, and the motor is the most important component. The existing motor structure includes a shell, and a stator and a rotor are arranged in the shell. The stator needs to be fixed by a metal bracket. At the same time, the metal bracket also fixes the bearing that matches the rotor. When the metal bracket is installed, the structure is complex and the operation is relatively cumbersome, which greatly affects the assembly efficiency of the motor. Utility Model Content

[0003] In order to solve the above problems, the purpose of the utility model is to provide a latch-safe automobile air-conditioning fan which is simple in structure, reliable and easy to assemble.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a bolt-safe automobile air-conditioning fan, comprising a tray, a motor and a wind wheel, the wind wheel is mounted on the rotating shaft of the motor, the tray and the motor are integrally assembled and connected, an annular mounting ring is provided on the tray, the motor comprises a rotor and a stator, the stator is non-rotatably sleeved on the mounting ring, the rotor comprises an end cover, a rotating shaft and magnets uniformly arranged on the inner peripheral wall of the end cover, the front and rear sides of the rotating shaft are respectively connected to the inner hole of the mounting ring through bearings The stator comprises an iron core, an upper iron core frame and a lower iron core frame, the upper iron core frame and the lower iron core frame are respectively plastic parts, the upper iron core frame is embedded in the upper part of the iron core, the lower iron core frame is embedded in the lower part of the iron core, the inner hole wall of the iron core and the outer wall of the mounting ring are concave-convex plug-in positioning, the circumference of the upper iron core frame is evenly distributed with arc-shaped rebound parts, the inner end wall of the rebound part is convexly provided with a pin, the outer wall of the mounting ring is provided with a slot corresponding to the pin, and the pin is inserted into the slot.

[0005] A guide slope is provided between the upper end surface of the mounting ring and the clamping slot, and the latch pin is guided into the clamping slot along the guide slope.

[0006] The mounting ring is provided with a mounting hole matching the bearing, and the inner hole of the mounting hole is in the shape of an equilateral polygon.

[0007] The beneficial effects of the utility model are as follows: the integrity is improved by the integrated design of the tray and the motor; at the same time, the stator is sleeved on the mounting ring on the tray, and the latch on the upper core frame is inserted into the slot, thereby limiting the position of the stator, making it difficult for the stator to separate from the mounting ring; the structure is simple, reliable, and easy to assemble.

[0008] The utility model is further described below in conjunction with the accompanying drawings and specific implementation methods. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1 A three-dimensional diagram of a specific implementation of the utility model;

[0010] Figure 2 It is a cross-sectional view of a specific implementation mode of the utility model;

[0011] Figure 3 It is an exploded view of a specific implementation method of the utility model;

[0012] Figure 4 for Figure 2 A is an enlarged view of the middle image. DETAILED DESCRIPTION

[0013] The present invention is specifically described below through embodiments, which are only used to further illustrate the present invention and should not be construed as limiting the protection scope of the present invention.

[0014] like Figure 1 — Figure 4 As shown, this embodiment discloses a latch-safe automobile air-conditioning fan, comprising a tray 1, a motor 2 and a wind wheel, the wind wheel being mounted on the rotating shaft 32 of the motor 2, the tray 1 and the motor 2 being integrally assembled and connected, the tray 1 being provided with an annular mounting ring 11, the motor 2 comprising a rotor 3 and a stator 4, the stator 4 being sleeved on the mounting ring 11 in a non-rotatable manner, the rotor 3 comprising an end cover 31, a rotating shaft 32 and magnets uniformly distributed on the inner circumferential wall of the end cover 31, a rotor core being arranged on the rotating shaft 32, the front and rear sides of the rotating shaft 32 being connected to the inner hole of the mounting ring 11 through bearings 5 ​​respectively, the rotating shaft 32 being connected to the hollow of the end cover 31, the stator 4 comprising an iron core 41, an upper iron core frame 42 and a lower iron core frame 42, the upper iron core frame 42 and the lower iron core frame 42 being plastic parts respectively. The upper core frame 42 is embedded in the upper part of the core 41, and the lower core frame 42 is embedded in the lower part of the core 41, so that the core 41 is wrapped and a copper wire winding is wound around it. The inner hole wall of the core 41 and the outer wall of the mounting ring 11 are plug-in and positioned, that is, the inner wall of the core 41 is convexly provided with insertion strips evenly distributed around the circumference, and the outer wall of the mounting ring 11 is provided with slots corresponding to the insertion strips. The slots are mainly formed by two convex strips convexly provided on the outer wall of the mounting ring 11. The circumferential wall of the upper core frame 42 is evenly distributed with arc-shaped rebound parts 421, and the inner end wall of the rebound part 421 is convexly provided with a pin 422. The outer wall of the mounting ring 11 is provided with a slot 112 corresponding to the pin 422, and the pin 422 is inserted into the slot 112, which plays a safety-type snap-fit.

[0015] A guide slope 113 is provided between the upper end surface of the mounting ring 11 and the slot 112, and the latch 422 is guided along the guide slope 113 to enter the slot 112. Since the rebound portion 421 has rebound properties, during assembly, when the latch 422 moves along the guide slope 113, the rebound portion 421 will be recessed and rebound, and then when the latch 422 enters the slot 112, the rebound portion 421 returns to its original position, so that the stator 4 is restricted between the bottom of the tray 1 and the latch 422, and the structure is reliable and easy to operate.

[0016] The mounting ring 11 is provided with a mounting hole 114 matching the bearing, and the inner hole of the mounting hole 114 is a 12-equal-sided polygon. Since the tray 1 is made of plastic, the original circular mounting hole 114 will become an elliptical shape during the thermal expansion and contraction process of the injection molding machine during the die-casting process, and is now changed to a 12-equal-sided polygon, which reduces the deformation of the mounting hole 114 and makes the bearing installation more reliable.

[0017] By adopting the above technical solution, the tray 1 and the motor 2 are designed as an integrated whole to improve the integrity. At the same time, the stator 4 is sleeved on the mounting ring 11 on the tray 1, and the pin 422 on the upper core frame 42 is inserted into the slot 112, thereby limiting the position of the stator 4, making it difficult for the stator 4 to separate from the mounting ring 11. Compared with the existing structure, this structure has the characteristics of simplicity, reliability and easy assembly due to the reduction of metal brackets.

[0018] The above shows and describes the basic principles and main features of the utility model and the advantages of the utility model. For those skilled in the art, it is obvious that the utility model is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic features of the utility model. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the utility model is limited by the attached claims rather than the above description, and it is intended to include all changes within the meaning and scope of the equivalent elements of the claims. Any figure mark in the claims should not be regarded as limiting the claims involved.

[0019] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A bolt-safe automobile air-conditioning fan, comprising a tray, a motor and a wind wheel, wherein the wind wheel is mounted on the rotating shaft of the motor, and is characterized in that: The tray and the motor are assembled and connected in an integral manner, and an annular mounting ring is provided on the tray. The motor includes a rotor and a stator, and the stator is non-rotatably sleeved on the mounting ring. The rotor includes an end cover, a rotating shaft and magnets evenly distributed on the inner circumferential wall of the end cover. The front and rear sides of the rotating shaft are respectively connected to the inner hole of the mounting ring through bearings, and the rotating shaft and the end cover are hollowly connected. The stator includes an iron core, an upper iron core frame and a lower iron core frame. The upper iron core frame and the lower iron core frame are respectively plastic parts. The upper iron core frame is embedded in the upper part of the iron core, and the lower iron core frame is embedded in the lower part of the iron core. The inner hole wall of the iron core and the outer wall of the mounting ring are concave-convex plug-in positioning. The circumferential wall of the upper iron core frame is evenly distributed with arc-shaped rebound parts, and a pin is convexly provided on the inner end wall of the rebound part. A slot corresponding to the pin is provided on the outer wall of the mounting ring, and the pin is inserted into the slot.

2. The latch-type automobile air-conditioning fan according to claim 1, characterized in that: A guide slope is provided between the upper end surface of the mounting ring and the clamping slot, and the latch pin is guided into the clamping slot along the guide slope.

3. The latch-type automobile air-conditioning fan according to claim 1, characterized in that: The mounting ring is provided with a mounting hole matching the bearing, and the inner hole of the mounting hole is in the shape of an equilateral polygon.

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