JP3242583U - 4pin connection type high speed blower - Google Patents

Abstract

A 4-pin connection type high-speed blower that improves assembly efficiency, ensures the perfection of a cylindrical case with an air duct, and solves problems such as turbulence and noise when air is output from the air duct. do. A 4-pin connection type high-speed blower includes a cylindrical case 1 with an air duct, a stator module 2, an upper bearing 3, a lower bearing 4, a rotary shaft 5, a magnet ring 6, a fan 7, an adapter plate 8, a connection terminal 9 and Including adjustment spring 13 . In the 4-pin connection type high-speed blower, the grounding column 11 is inserted into the recess outside the stator core 202, and the grounding column is electrically connected to the coupling notch 12 on the wall surface of the inner cylinder of the cylindrical case with air duct. to obtain the effect of grounding. The upper end of the grounding post is welded to the adapter plate, and the 4pin connection terminal is installed on the adapter plate to realize the grounding of the high-speed blower and avoid installing the grounding wire. [Selection drawing] Fig. 2

Description

This invention belongs to the technical field of motors, and particularly relates to a 4-pin connection type high-speed blower.

A high-speed brushless motor refers to a brushless motor having a rotation speed of about 100,000 RPM (revolutions per minute). High-speed brushless motors have the advantages of small volume, high rotational speed, large wind force, long service life and low noise, so high-speed brushless motors are widely used in hair dryers, air combs, etc. Widely used in household appliances. When using a high-voltage DC household appliance, it is necessary to attach a ground wire to the high-voltage DC household appliance in order to ensure safety. In conventional high-speed brushless motors, a recess is usually formed on the hollow cylinder of the case air duct, and a ground wire is installed in this recess. By adopting that structure, it is not necessary to attach an additional grounding wire, but by attaching the grounding wire to the airway, the airway of the case becomes smaller, which affects the wind output of the airway, resulting in turbulence and Noise may occur.

There is a need to improve the structure of high-speed brushless motors to solve the problems of the prior art.

The 4-pin connection type high-speed blower of this invention solves the problems of the prior art by adopting a grounding column attached to the stator core.

In order to achieve the above object, this invention adopts the following 4-pin connection type high speed blower.
The 4-pin connection type high-speed blower of this invention consists of a cylindrical case with an air duct, a stator module attached to the upper part of the inner space of the cylindrical case with an air duct, and an upper bearing and a lower bearing inside the cylindrical case with an air duct. It includes a rotating shaft rotatably mounted in the lower part of the space. The upper bearing and the lower bearing are attached to the lower portion of the rotating shaft, and the rotating shaft and the magnet ring attached to the upper portion of the rotating shaft are inserted into the stator module. A fan is attached to the lower end surface of the rotating shaft, and the fan is positioned outside the bottom of the cylindrical case with air duct. The stator module includes a stator package, stator core and coils. The material of the stator package is plastic, and the stator package is formed on the back side of the stator core by injection molding method of molding material. The coil is wound on a predetermined portion of the stator core corresponding to the stator package. An adapter plate is attached to the upper end surface of the stator module, and the coil is electrically connected to the adapter plate. A connection terminal is attached to the top of the adapter plate, and the connection terminal is electrically connected to the adapter plate. The connection terminal is electrically connected to an output terminal of an external control power supply. A groove is formed outside the stator core, and a ground pillar is inserted into the groove. The upper ends of the ground posts are electrically connected to the adapter plate. The wall surface of the inner cylinder of the cylindrical case with air duct is formed with a connecting notch corresponding to the recessed groove on the outer side of the stator core. The outer groove of the stator core is electrically connected to the connecting notch of the wall surface of the inner cylinder of the cylindrical case with air duct.

The cylindrical case with air duct includes a hollow cylinder, an air duct and an outer case. Both the outer case and the hollow cylinder have a cylindrical structure made of a thin material, the air duct is formed between the outer case and the hollow cylinder, and the hollow cylinder, the air duct and the outer case are It is a structure integrally formed of a metal material.

The air passages are blades extending in the axial direction of the outer case and formed on the inner peripheral surface of the outer case, and the number of the blades is nine.

The material of the cylindrical case with air duct is a zinc alloy.

An adjusting spring is further mounted between the upper bearing and the lower bearing, the adjusting spring is movably mounted on the rotating shaft, and both ends of the adjusting spring are respectively connected to the outer ring of the upper bearing and the outer ring of the lower bearing 4. abut.

According to the matter of this invention, the following effects of the invention can be obtained.
In the 4-pin connection type high-speed blower of this invention, the grounding column is inserted into the recess outside the stator core, and the grounding column is electrically connected to the coupling notch of the wall surface of the inner cylinder of the cylindrical case with air duct. It is possible to acquire the effect of grounding by being The upper end of the grounding post is welded to the adapter plate, and the 4pin connection terminal is installed on the adapter plate to realize the grounding of the high-speed blower and avoid installing the grounding wire. It can improve the efficiency of assembling the high-speed blower, ensure the perfection of the cylindrical case with air duct, and solve the problem of turbulence and noise when the air is output from the air duct.

1 is a perspective view showing a 4-pin connection type high-speed blower of this invention; FIG. 1 is an exploded view showing a 4-pin connection type high-speed blower of this invention; FIG.

An embodiment of this invention will be described in detail below with reference to the drawings.

Hereinafter, the matter of this invention will be described in detail with reference to specific examples. A person skilled in the art can easily understand the effects and advantages of this invention from the matters disclosed in this specification. The following examples are merely illustrative of this invention and do not represent all embodiments of this invention. This invention can be carried out by other embodiments different from the following embodiments or can adopt other embodiments different from the following embodiments, and each item in the specification is limited only to the following specific items. not something. The following examples or matters can be appropriately modified or improved without departing from the gist of the invention. It should be noted that the examples below and the features in the examples can be combined unless inconsistent. A person skilled in the art can conceive of other embodiments of this invention according to the following examples without making creative inventions, and they are naturally included in this invention.

By attaching a grounding wire to the 4-pin connection type high-speed blower of this invention, it is possible to solve the problem of turbulence and noise when the air is output from the air passage. The 4-pin connection type high-speed blower of this invention is as follows.

As shown in FIGS. 1 and 2, the 4-pin connection type high-speed blower according to the embodiment of the present invention is installed on the cylindrical case 1 with air duct and the inner space of the cylindrical case 1 with air duct. It includes a stator module 2 and a rotary shaft 5 rotatably mounted to the lower part of the inner space of the cylindrical case 1 with an air duct by means of upper bearings 3 and lower bearings 4 . The upper bearing 3 and the lower bearing 4 are attached to the lower part of the rotating shaft 5 , and the rotating shaft 5 and the magnet ring 6 attached to the upper part of the rotating shaft 5 are inserted into the stator module 2 . A fan 7 is attached to the end surface of the lower portion of the rotating shaft 5 , and the fan 7 is positioned outside the bottom portion of the cylindrical case 1 with air duct. The stator module 2 includes a stator package 201 , stator cores 202 and coils 203 . The material of the stator package 201 is plastic, and the stator package 201 is formed on the back side of the stator core 202 by injection molding method of molding material. The coil 203 is wound around a predetermined portion of the stator core 202 corresponding to the stator package 201 . An adapter plate 8 is attached to the upper end face of the stator module 2 and the coils 203 are electrically connected to the adapter plate 8 . A connecting terminal 9 is mounted on the top of the adapter plate 8 and electrically connected to the adapter plate 8 . The connection terminal 9 is electrically connected to the output terminal of the external control power supply. The basic structure of the 4-pin connection type high-speed blower is as described above, and the operating principle of the 4-pin connection type high-speed blower will be described in detail below.

A groove 10 is formed outside the stator core 202 , and a grounding column 11 is inserted into the groove 10 . The grounding column 11 is electrically connected to the adapter plate 8 by welding the upper end of the grounding column 11 to the adapter plate 8 . A connecting notch 12 corresponding to the recess 10 on the outside of the stator core 202 is formed on the wall surface of the inner cylinder of the cylindrical case 1 with air duct. The groove 10 on the outside of the stator core 202 abuts on a predetermined portion of the connecting notch 12 of the wall surface of the inner cylinder of the cylindrical case 1 with the air passage, so that the groove 10 on the outside of the stator core 202 forms the air passage. It is electrically connected to the coupling cutout 12 in the wall surface of the inner cylinder of the cylindrical case 1 with the .

By inserting the grounding column 11 into the recess 10 outside the stator core 202 and electrically connecting the grounding column 11 to the coupling notch 12 in the wall surface of the inner cylinder of the cylindrical case 1 with air duct, You can get the effect of grounding. The upper end of the grounding column 11 is welded to the adapter plate 8, and the 4-pin connection terminal 9 is installed on the adapter plate 8, so that the grounding of the high-speed blower can be realized and the installation of the grounding wire can be avoided. It can improve the efficiency of assembling the high-speed blower, ensure the perfection of the cylindrical case 1 with air duct, and solve the problem of turbulence and noise when the air is output from the air duct, etc. .

A cylindrical case 1 with an air passage includes a hollow cylinder 101 , an air passage (also referred to as a duct) 102 and an outer case 103 . Both the outer case 103 and the hollow cylinder 101 have a cylindrical structure made of a thin material, and the air duct 102 is formed between the outer case 103 and the hollow cylinder 101. And the outer case 103 is integrally formed of a metal material.

Specifically, the air duct 102 is composed of nine blades 104 extending in the axial direction of the outer case 103 and formed on the inner peripheral surface of the outer case 103 .

Specifically, since the material of the cylindrical case 1 with air duct is a zinc alloy, the hardness of the cylindrical case 1 with air duct can be ensured and the weight of the cylindrical case 1 with air duct can be reduced.

Specifically, an adjusting spring 13 is further installed between the upper bearing 3 and the lower bearing 4 . The adjusting spring 13 is movably mounted on the rotating shaft 5, and both ends of the adjusting spring 13 are in contact with the outer ring of the upper bearing 3 and the outer ring of the lower bearing 4, respectively, so that the axial gap between the outer ring and the inner ring of the bearings is adjusted. can be adjusted. Problems such as noise can be solved by reducing the axial clearance between the outer ring and the inner ring of the bearing.

Although the embodiments of this invention have been described above, the embodiments are only examples of this invention, and this invention is not limited to the configurations of the above embodiments. Persons skilled in this technical field can make design changes, improvements, substitutions, and modifications to the above-described embodiments without departing from the scope of the invention, and such design changes, improvements, substitutions, and modifications are possible. Even if there is, it is natural that it is included in the range defined by the utility model registration claim of this device.

1 Cylindrical case with air passage 2 Stator module 3 Upper bearing 4 Lower bearing 5 Rotating shaft 6 Magnet ring 7 Fan 8 Adapter plate 9 Connection terminal 101 Hollow cylinder 102 Air passage 103 Outer case 104 Blade 201 Stator package 202 Stator core 203 Coil 10 Recessed Fixing Part 11 Ground Post 12 Coupling Notch 13 Adjustment Spring

Claims (5)

A cylindrical case with an air duct, a stator module attached to the upper part of the inner space of the cylindrical case with an air duct, and a rotor rotatably attached to the lower part of the inner space of the cylindrical case with an air duct by means of upper and lower bearings. a shaft, wherein the upper bearing and the lower bearing are attached to the lower portion of the rotating shaft; the rotating shaft and the magnet ring attached to the upper portion of the rotating shaft are inserted into the stator module; is mounted with a fan, the fan is located outside the bottom of the cylindrical case with air channel, the stator module includes a stator package, a stator core and a coil, the material of the stator package is plastic, the stator A package is formed on the back side of the stator core by injection molding method of molding material, the coil is wound on a predetermined portion of the stator core corresponding to the stator package, an adapter plate is attached to the upper end surface of the stator module, and the A 4-pin connection in which the coil is electrically connected to an adapter plate, a connection terminal is attached to the top of the adapter plate, the connection terminal is electrically connected to the adapter plate, and the connection terminal is electrically connected to the output end of an external control power supply. A high-speed blower of the type, wherein a groove is formed outside the stator core, a grounding column is inserted into the groove, the upper end of the grounding column is electrically connected to the adapter plate, and the air duct is The wall surface of the inner cylinder of the cylindrical case with air ducts is formed with a coupling notch corresponding to the outer recess of the stator core. A 4-pin connection type high-speed blower characterized by being electrically connected to the coupling notch. The cylindrical case with an air duct includes a hollow cylinder, an air duct and an outer case. 2. The 4-pin connection type high-speed blower according to claim 1, wherein the hollow cylinder, the air duct and the outer case are formed between the hollow cylinder and are integrally formed of a metal material. 3. The 4-pin connection type according to claim 2, wherein the air duct is a blade extending in the axial direction of the outer case and formed on the inner peripheral surface of the outer case, and the number of the blades is nine. high speed blower. 2. The 4-pin connection type high speed blower according to claim 1, wherein the material of said cylindrical case with air duct is a zinc alloy. An adjusting spring is further mounted between the upper bearing and the lower bearing, the adjusting spring is movably mounted on the rotating shaft, and both ends of the adjusting spring are respectively connected to the outer ring of the upper bearing and the outer ring of the lower bearing 4. The 4-pin connection type high-speed blower according to claim 1, characterized in that they abut.

Images