CN217233854U

CN217233854U - Fan structure

Info

Publication number: CN217233854U
Application number: CN202221011438.6U
Authority: CN
Inventors: 黄井平; 刘峰
Original assignee: Asia Vital Components Co Ltd
Current assignee: Asia Vital Components Co Ltd
Priority date: 2022-04-27
Filing date: 2022-04-27
Publication date: 2022-08-19
Anticipated expiration: 2032-04-27

Abstract

The utility model provides a fan structure, which comprises a fan frame body, a fan frame body and a fan frame body, wherein the fan frame body is provided with a base and a shaft cylinder which is vertically arranged; a motor stator shell, which has a top and a bottom, the top has a shaft hole, the bottom is opened and covered on the base correspondingly, and forms a glue filling space with the shaft cylinder and the base, a glue filling hole is selectively arranged on the base or the bottom of the motor stator shell, and is communicated with the glue filling space; the motor stator is sleeved outside the shaft cylinder and accommodated in the glue filling space; and the colloid is filled in the glue filling space and is coated outside the motor stator. The fan structure is manufactured by the structure, the inconvenience of glue pouring of the traditional fan is improved, and the problems of manufacturing cost, time, yield, subsequent secondary processing and the like are greatly reduced.

Description

Fan structure

Technical Field

The utility model relates to a fan field of making, especially a fan stator waterproof construction.

Background

The motor stator of the fan motor is completely coated and solidified by the glue in a glue filling mode, so that the glue protects the motor stator, the waterproof effect is achieved, the reliability is greatly improved, and the fan can be used in more severe environments.

Referring to fig. 1A and 1B, the conventional fan motor stator is encapsulated by placing the motor stator in a metal mold assembly 9 composed of a plurality of molds, fixing the plurality of molds (a first metal mold 91, a second metal mold 92, and a third metal mold 93) by using bolts 94, injecting liquid colloid into the molds, heating the molds to solidify the colloid, sequentially disassembling the metal mold assemblies, taking out the encapsulated motor stator 81, and mounting the encapsulated motor stator 81 on a shaft 82 of a fan frame.

2. The cost is high, a special glue pouring mold needs to be manufactured, in order to enable the follow-up mold dismantling step to be smooth, one group of molds can only carry out glue pouring on one motor stator at a time, and when mass production is carried out at one time, the molds with the number corresponding to the group number need to be used.

3. Production efficiency is low, and each motor stator will carry out the encapsulating and all will carry out a mould equipment and a mould and demolish, and in order to avoid leaking glue during the mould equipment, need real compel tightly the bolt, and the mould step of demolising after the solidification of heating colloid is very difficult in addition, has the colloid to glue the problem of mould, and it also can consume a large amount of time to dismantle the bolt simultaneously.

3. The defective rate is on the high side, and the mould can produce the loss after using a period gradually, leads to encapsulating in-process to receive the influence, for example produce the colloid gap, colloid surface bubble leads to the cladding incomplete, the finished product produces deckle edge scheduling problem, has probably to produce the colloid when the mould is demolishd simultaneously and tears damaged problem, and these problems all need to carry out secondary operation after accomplishing the encapsulating and handle, can only abandon when more serious situation can't be handled a bit.

4. In an additional step, the encapsulated motor stator is manually mounted on the shaft of the fan frame, so that the motor stator and the fan frame need to be manually combined again in a time-consuming manner.

Therefore, how to solve the above problems and deficiencies is the direction in which the authors of the present invention and the related manufacturers engaged in the industry desire to research and improve.

SUMMERY OF THE UTILITY MODEL

In order to improve the above problem, an object of the present invention is to provide a fan structure, which is able to replace the glue filling method of the conventional mold for the motor stator housing, thereby completely improving the problem of the current glue filling.

To achieve the above object, the present invention provides a fan structure, comprising:

a fan frame body which is provided with a base and is provided with a shaft cylinder in a vertical way;

a motor stator shell, having a top and a bottom, the top having a shaft hole, the bottom being open and correspondingly covering the base and combining with the base, the motor stator shell, the shaft cylinder and the base together forming a glue filling space, a glue filling hole selectively arranged at the bottom of the base or the motor stator shell and communicating with the glue filling space;

the motor stator is sleeved outside the shaft cylinder and accommodated in the glue filling space; and

and the colloid is filled in the glue filling space and is coated outside the motor stator.

The fan structure, wherein: the shaft cylinder is assembled corresponding to the shaft hole.

The fan structure, wherein: the base also has a ring wall and an electrical wire hole, and a groove is defined between the ring wall and the shaft barrel.

The fan structure, wherein: the motor stator is provided with a plurality of electric leads which penetrate through the electric lead holes.

The fan structure, wherein: the bottom of the motor stator shell is provided with an extension part, and the annular wall is abutted with the extension part.

Borrow by above-mentioned structure, thoroughly improved traditional metal mold a great deal of problem on the encapsulating, promoted production efficiency and product yield by a wide margin, no longer need dedicated encapsulating mould simultaneously, made whole manufacturing cost reduce, thoroughly improved the problem of current encapsulating, and overall structure has motor stator shell as the outermost protection, provides better structural strength.

Drawings

FIG. 1A is a schematic diagram of a current fan glue filling method;

FIG. 1B is a schematic view of the stator mounted to the fan frame after the fan is potted;

FIG. 2A is an exploded view of each component of the fan according to the glue-pouring method of the present invention;

FIG. 2B is a schematic view of the assembly of the components of the fan according to the glue-pouring method of the present invention;

FIG. 2C is a schematic cross-sectional view of FIG. 2B;

fig. 2D is a schematic view of another embodiment of the motor stator housing and fan frame of the present invention;

FIG. 3A is a schematic diagram (I) illustrating the operation of the glue filling method for fan according to the present invention;

fig. 3B is a schematic action diagram (ii) of the glue filling method for the fan of the present invention;

fig. 3C is a schematic diagram (iii) illustrating the operation of the glue filling method for the fan according to the present invention;

FIG. 4 is a flow chart of the glue filling method for a fan according to the present invention;

fig. 5 is a flow chart of the glue filling method for the fan according to the present invention (ii).

The reference numbers illustrate: a fan frame body 1; a base 11; glue filling holes 111; an electrical wire guide 112; an annular wall 113; a recess 114; a shaft tube 12; a motor stator housing 2; a top portion 21; a shaft hole 211; a bottom 22; an extension part 221; a motor stator 3; an electrical lead 31; the core shaft hole 32; a substrate 33; a glue filling funnel 4; a first opening 41; a second opening 42; 5, colloid; glue filling space GS; steps S1 to S5.

Detailed Description

The above objects, together with the structural and functional features thereof, will be best understood from the following description of the preferred embodiment when read in connection with the accompanying drawings.

Please refer to fig. 2A, fig. 2B, fig. 2C and fig. 2D, which are a schematic diagram illustrating the decomposition of each component of the fan, the assembly, the section, and the other state of the motor stator housing and the fan frame according to the glue filling method of the present invention, the components of the present invention will be described first for clear understanding of the glue filling method and the fan structure of the present invention.

The fan frame 1 includes a base 11 and a shaft 12 vertically installed, the base 11 has a glue filling hole 111 and an electric wire hole 112 and a ring wall 113, a groove 114 is defined between the ring wall 113 and the shaft 12.

The motor stator housing 2 has a top portion 21 and a bottom portion 22, the top portion 21 has a shaft hole 211, the diameter of the shaft hole 211 corresponds to the outer diameter of the shaft tube 12, the shaft hole 211 is penetrated through the shaft tube 12, and the bottom portion 22 has an extending portion 221.

A motor stator 3 has a plurality of electric conductors 31, a core shaft hole 32 and a base plate 33, the electric conductors 31 are disposed through the electric conductor hole 112, the core shaft hole 32 has an inner diameter corresponding to the outer diameter of the shaft tube 12.

The bottom 22 is opened and correspondingly covers the upper portion of the groove 114 to be combined with the base 11, meanwhile, the annular wall 113 and the extension part 221 are abutted, the shaft cylinder 12 sequentially provides for the motor stator 3 and the motor stator housing 2 to be sleeved, the shaft cylinder 12, the shaft hole 211 and the iron core shaft hole 32 are tightly matched, so that no shaking or gap is generated when the motor stator housing 2 is sleeved, the base plate 33 is located in the groove 114, the shaft hole 211 is penetrated and arranged by one end of the shaft cylinder 12 and seals the shaft hole 211, the motor stator housing 2, the shaft cylinder 12 and the groove 113 jointly form a glue filling space GS, and the glue filling space GS is a closed space.

And the glue body 5 is filled in the glue filling space GS and is coated outside the motor stator 3.

In the above embodiment, the glue filling hole 111 is disposed on the base 11 (as shown in fig. 2C), and the glue filling hole 111 may also be disposed on the bottom 22 of the motor stator housing 2 (as shown in fig. 2D).

Please refer to fig. 3A, fig. 3B, fig. 3C, fig. 4 and fig. 5, which are schematic diagrams (a), (B) and (C) of the fan glue-filling method of the present invention and schematic diagrams (a) and (B) of the flow of the fan glue-filling method of the present invention, and refer to fig. 2A, fig. 2B, fig. 2C and fig. 2D, and the following will describe the glue-filling method of the present invention in detail.

S1: providing a fan frame body, a motor stator shell and a motor stator, wherein the fan frame body is provided with a base and a shaft cylinder vertically arranged, the motor stator is sleeved outside the shaft cylinder, and the base or the motor stator shell is provided with at least one glue filling hole; the fan frame 1, the motor stator housing 2, and the motor stator 3 of the present invention are provided in advance, the motor stator 3 is sleeved outside the shaft 12 of the fan frame 1, and the base 11 of the selected fan frame 1 in this embodiment has the glue filling hole 111.

S2: the motor stator shell is covered outside the motor stator and combined with the base, and a glue filling space is defined by the motor stator shell, the shaft cylinder and the base; the motor stator housing 2 is combined to the fan frame 1, the shaft hole 211 is penetrated by one end of the shaft cylinder 12 and closes the shaft hole 211, so that the motor stator housing 2 and the grooves 114 of the shaft cylinders of the shaft cylinder 12 and the motor stator housing 2 form a glue filling space GS together, and the glue filling space GS is a closed space.

S3: aligning and connecting one end of a glue filling funnel with the glue filling hole, and filling a liquid glue into the glue filling space; providing a glue filling funnel 4, having a first opening 41 and a second opening 42 respectively disposed at two ends of the glue filling funnel 4 and communicated with each other, wherein the aperture of the second opening 42 is larger than that of the first opening 41, connecting the first opening 41 with the glue filling hole 111 correspondingly, turning the combined fan 180 degrees to make the glue filling hole 111 face upward, so that the liquid glue 5 can flow into the glue filling space GS naturally through gravity.

S4: removing the glue filling funnel, heating and curing the glue filling part, and completing glue filling operation after the liquid glue is cured; the fan that completes the glue filling removes the glue filling funnel 4 and heats (e.g., places in an oven) to accelerate the curing of the glue 5.

The utility model discloses another embodiment of encapsulating method, at S3: aligning and connecting one end of a glue filling funnel with the glue filling hole, and filling a liquid glue into the glue filling space, and then further comprising the following steps: s4: providing a vacuum device to remove the gas in the colloid.

In the process of filling the glue, because the glue 5 belongs to a fluid with poor fluidity, air is easy to leak in the process of filling the glue, or the air cannot smoothly flow from the glue filling space GS, if the air in the glue 5 is heated and solidified subsequently, a cavity is generated, which causes a problem of poor quality, and therefore, the air in the glue 5 is removed through a vacuum device (such as a negative pressure space generated by a vacuum pump).

The utility model discloses see through and use motor stator shell 2 as the container of accepting colloid 5, let colloid 5 exist in encapsulating space GS and solidification, colloid 5 complete cladding motor stator 3 and adhere motor stator shell 2, the colloid 5 of solidification lets the combination that motor stator shell 2 is firm at base 11, motor stator shell 2 is the exterior again, whether complete when the observation that can make clear and definite during its equipment, just can judge the problem of whether complete cladding stator of colloid after having improved traditional mould encapsulating drawing of patterns, relevant production problem and the quality problems that probably produced when having also avoided the drawing of patterns simultaneously (the time that the drawing of patterns consumeed and the colloid damage that the drawing of patterns probably produced), the partial step of extra equipment has also been saved.

To sum up, the utility model has the advantages of as follows:

1. the cost is low;

2. the production efficiency is high;

3. the yield is high;

4. the additional assembly step is omitted.

The foregoing description is intended to be illustrative rather than limiting, and it will be appreciated by those skilled in the art that many modifications, variations or equivalents may be made without departing from the spirit and scope of the invention as defined in the appended claims.

Claims

1. A fan structure, comprising:

a fan frame body which is provided with a base and is provided with a shaft cylinder in a hanging way;

2. The fan structure as claimed in claim 1, wherein: the shaft cylinder is assembled corresponding to the shaft hole.

3. The fan structure as claimed in claim 1, wherein: the base also has a ring wall and an electrical wire hole, and a groove is defined between the ring wall and the shaft barrel.

4. The fan structure as claimed in claim 3, wherein: the motor stator is provided with a plurality of electric leads which penetrate through the electric lead holes.

5. The fan structure as claimed in claim 3, wherein: the bottom of the motor stator shell is provided with an extension part, and the annular wall is abutted with the extension part.