KR101760379B1 - Housing for a motor - Google Patents

Abstract

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a motor housing for housing a stator and a rotor, and more particularly, to a motor housing for housing a stator and a rotor therein, A front cover that shields a front opening of the body and has a through hole through which one side of the motor shaft is inserted; A rear cover configured to mold a through hole through which the other side of the motor shaft is inserted to shield the rear opening of the body; And a housing part formed on a side surface of the body to accommodate a circuit for driving the motor and a cable or a cable connected to the circuit.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a motor housing for housing a stator and a rotor, and more particularly, to a motor housing for housing a stator and a rotor therein, A front cover that shields a front opening of the body and has a through hole through which one side of the motor shaft is inserted; A rear cover configured to mold a through hole through which the other side of the motor shaft is inserted to shield the rear opening of the body; And a housing part formed on a side surface of the body to accommodate a circuit for driving the motor and a cable or a cable connected to the circuit.

Generally, industrial motors mounted on machinery and large facilities are made by accommodating a stator and a rotor inside a motor housing.

The motor housing has a pair of upper and lower bodies, a lower body for accommodating the stator and the rotor, an upper housing for covering the lower housing, and bearings for supporting the rotation of the rotor.

The stator is designed to have a predetermined thickness by stacking a plurality of cores constituted by a circumferential yoke portion and a yoke portion protruding from the inner circumferential surface of the yoke portion and wound around the coil, Is also used.

As a technology of such a motor housing, a technology such as a motor housing of Korean Patent Registration No. 10-163259 is known.

However, a general motor housing including the known motor housing includes a separate control board on which a motor control circuit including a power supply circuit for supplying electric power to the motor and a motor driving circuit for performing normal / And is separately installed outside the housing.

Accordingly, there is a fear that various electric wires or cables for applying power or control signals between the motor housing and the motor control circuit are directly exposed to the outside of the motor housing and are damaged by heat, dust or electric sparks around the motor housing Which may adversely affect the maintenance of the equipment using the motor.

It is an object of the present invention to provide a motor control circuit and various electric wires or cables to be connected to the motor in a motor housing to prevent external exposure of electric wires or cables, The present invention provides a structure of a motor housing that can facilitate maintenance of equipment to be used.

According to an aspect of the present invention, there is provided a motor housing comprising: a body having a stator and a rotor housed therein and having front and rear surfaces respectively opened; A front cover that shields a front opening of the body and has a through hole through which one side of the motor shaft is inserted; A rear cover configured to mold a through hole through which the other side of the motor shaft is inserted to shield the rear opening of the body; And a housing part formed on a side surface of the body to accommodate a circuit for driving the motor and a wire or a cable connected to the circuit.

The motor housing according to the present invention having the above-described structure includes a power supply circuit for supplying power to the motor, a motor driving circuit, various wires or cables to be connected to the motor housing, The electric wires or cables are not directly exposed to the outside, and there is a fear that the electric wires or cables are damaged by heat, dust, or electric sparks around the motor housing, thereby minimizing damage to the motor housing. ≪ / RTI >

In addition, since the heat dissipation area of the heat is greatly increased by the side radiating fins and the upper side radiating fins as described above, the motor housing of the present invention effectively discharges the electric heat to the air due to the operation of the stator and the rotor housed therein, Thereby further enhancing the effect of preventing the failure of the motor and providing the driving environment optimized for the performance of the motor.

1 is a perspective view of a motor housing of the present invention,
2 is an exploded perspective view of the motor housing of the present invention,
3 to 5 are sectional views of the motor housing of the present invention,
FIG. 3 is a perspective view taken along line A-A 'of FIG. 1, FIG. 4 is a longitudinal sectional view taken along line A-A' of FIG. 1,
6 is a view showing another embodiment of the present invention.

Hereinafter, the construction of the motor housing of the present invention will be described in detail with reference to the accompanying drawings.

It is to be noted, however, that the disclosed drawings are provided as examples for allowing a person skilled in the art to sufficiently convey the spirit of the present invention. Accordingly, the present invention is not limited to the following drawings, but may be embodied in other forms.

In addition, unless otherwise defined, the terms used in the description of the present invention have the same meaning as commonly understood by one of ordinary skill in the art to which the present invention belongs. In the following description and the accompanying drawings, A detailed description of known functions and configurations that may be unnecessarily blurred is omitted.

FIG. 1 is a perspective view of a motor housing of the present invention, FIG. 2 is an exploded perspective view of the motor housing of the present invention, and FIGS. 3 to 5 are sectional views of the motor housing of the present invention.

1 and FIG. 2, the motor housing 1 of the present invention has a cylindrical body 10 in which a stator and a rotor are housed, and the body (not shown) 10 are integrally formed with the upper part and the lower part.

The front surface and the rear surface of the body 10 are respectively opened and the opening surface of the front surface is shielded by the front cover 20 and the opening surface of the rear surface is shielded by the rear cover 30. [

In order to dissipate the heat generated by the operation of the stator and the rotor of the motor 10 into the air outside the body 10, the body 10 is provided on both left and right sides of the body 10 from above the body of the body 10 The protruded side radiating fins 11 are formed.

The side radiating fins 11 are ribs protruding upward continuously in the longitudinal direction along the entire circumferential surface of the side from the front opening to the rear opening of the body 10 in order to maximize the radiating effect.

The upper side heat dissipation fin 12 protruding upward from the body of the body 10 is formed on the upper surface of the body 10 in addition to the side heat dissipation fins 11 in order to further improve the heat radiating effect of the body 10 .

The upper surface heat dissipation fin 12 also has a rib shape protruding upward continuously in the longitudinal direction along the entire outer circumferential surface of the upper surface from the front opening of the body 10 to the rear opening in order to maximize the heat dissipation effect.

Therefore, the heat dissipation area of the heat is greatly increased by the side radiating fin 11 and the top side radiating fin 12 as described above in the motor housing 1 of the present invention. Therefore, the stator and the rotor, which are housed in the motor housing 1, The heat can be effectively released into the air to prevent the motor from being damaged due to overheating and to provide a driving environment optimized for the performance of the motor.

In the motor housing 1 of the present invention, six radiating fins 11 are formed on the left side of the body 10 and six radiating fins 11 are formed on the right side of the body 10 in the case of the side radiating fins 11 So that a total of 12 left and right radiating fins 11 are formed.

The motor housing 1 of the embodiment of the present invention has six heat radiating fins 12 formed on the upper right side of the upper surface of the body 10 in the case of the upper surface radiating fin 12, 12) are formed so as to form a total of 12 heat radiating fins (12), thereby maximizing the heat radiating function together with the side radiating fins (11).

A name plate 13 is formed between the upper side ends of at least two fins of the side radiating fins 11 or the upper side radiating fins 12 formed in the body 10 of the present invention in a flat plate shape.

The nameplate surface 13 can increase the heat dissipation area together with the top surface heat dissipation fin 12 and the side heat dissipation fin 11 to improve the heat dissipation effect.

Further, the nameplate 13 of the present invention describes the names and specifications of the motors such as the motor name, product name, trademark, performance, forward / reverse rotation control, rated current, allowable voltage, etc., (Not shown) is attached.

The nameplate surface 13 may be formed integrally with at least two side radiating fins 11 or at least two top side radiating fins 12 and the nameplate surface 13 may be formed between at least two top side radiating fins 12 It is preferable to improve the visibility of the contents of the nameplate attached to the nameplate 13.

3, the front cover 20 has a motor shaft (not shown) to which a motor rotor is inserted and fixed at one side thereof. And at least one engaging hole 22 is formed at an edge of the through hole 21. The engaging hole 22 is engaged with the front opening of the body 10 using a conventional bolt.

The rear cover 30 has a through hole 31 through which the other side of a motor shaft (not shown) in which a motor rotator is inserted and fixed is formed at the center, and at least one engaging hole 32 is formed in a rim portion And is engaged with the rear opening end face of the body 10 using a normal bolt.

In addition, a stator and a rotor accommodated inside the body 10 of the motor housing 1 of the present invention are provided with a power supply circuit and a motor driving circuit for controlling the forward and reverse rotations, A receiving portion 40 for receiving various wires or cables to be connected is formed.

For this purpose, a receiving opening 14 is formed in the body 10 to draw various wires or cables, which are drilled on the outer circumferential surface of the body 10 and connected to the power supply circuit and the motor driving circuit, into the body 10.

The housing 40 is attached to the housing 14 formed on the outer circumferential surface of the body 10 and includes a case 41 housing the electric power supply circuit and the motor driving circuit and various electric wires and cables to be connected thereto, .

5, the case 41 has a box-shaped body with open top and bottom. The upper surface opening surface is closed by the lid 42, and the lower surface opening is closed by the body 10, And is designed to be able to draw various electric wires and cables into the body 10.

The lid 42 is engaged with the case 41 by inserting the bolt 44 through the fastening hole 43 formed in the body of the lid 42 and the electric power stored in the case 4! If it is necessary to maintain the supply circuit and the motor drive circuit, the bolt 44 may be removed from the fastening hole 43 and the lid 42 may be removed from the case 41 to inspect the circuit.

A pedestal 50 is provided at the lower portion of the body 10 to perform a leveling function to maintain the height of the motor housing 1 while maintaining the motor housing 1 in a stable state.

A process of installing the motor using the motor housing 1 of the present invention constructed as described above will be described.

First, a motor internal structure composed of a stator to be housed in the motor housing 1 of the present invention and a motor shaft for rotating the rotor and the rotor is inserted into the motor housing, and the motor internal structure is inserted into the body (10).

When the motor inner structure is fixed to the inner space of the body 10, the bolts are inserted into the engaging holes 22 of the front cover 20 on the front surface of the body 10, And one side of the motor shaft is inserted into the through hole (21) formed at the center of the front cover (20).

A bolt is inserted into the coupling hole 32 of the back cover 30 to connect the back cover 30 to the back opening face of the body 10, The other side of the motor shaft is inserted into the through hole 32 formed in the through hole 32. [

A power supply circuit to be accommodated in the case 41 of the housing part 40 and a motor to be accommodated in the case 41 of the housing part 40 by drawing out electric wires or cables for electrical wiring with the motor internal structure via the opening 14 formed on the side surface of the body 10, And the case 41 is coupled to the side surface of the receiving opening 14 with the side surface of the body 10. [

The control board of each of the power supply circuit and the motor driving circuit is securely fixed to the case 40 by using a bolt or the like and the lid 42 is fixed to the case 41 so as to shield the upper surface of the case 40.

Accordingly, the motor housing 1 of the present invention installed as described above is provided with a power supply circuit or a motor drive circuit for applying electric power to the motor, various wires or cables to be connected thereto, It is minimized that the electric wires or cables are damaged by heat, dust, or electric sparks around the motor housing by being housed in the housing 40 and not directly exposed to the outside of the motor housing 1, This makes it possible to easily maintain the equipment using the motor.

Thereafter, the motor housing 1 is mounted on the installation site of the machinery or the large facility by using the support 50, so that the required motor power can be provided to the machinery or the large facility. If necessary, the motor housing 1 can be firmly fixed The support 50 may be used in combination with the structure of the installation site of the machinery or the large facility.

FIG. 6 is a perspective view of an embodiment (modified embodiment) of the present invention in which the length of the bolt 44 is adjustable to enable the production of motor housings of various sizes without further production of bolts 44 Respectively.

The bolt 44 can be adjusted in its insertion length by the adjuster 153. However, when the standard is changed in accordance with the standard of the motor housing 1, the size of the housing 40 is also changed, and the bolt 44 having a length corresponding to the size of the housing 40 must be introduced The production of the bolt 44 in a different size to meet various specifications may cause not only a burden on the cost of producing the mold but also a problem of lowering the production efficiency.

Accordingly, the present invention intends to make it possible to manufacture various types of seismic isolation devices by introducing a length-adjustable bolt 44.

As shown in FIG. 6, the apparatus D includes an outer first body 152a and an inner second body 152b, to which the adjusting pins are coupled to each other.

The bolt 44 is also provided with a length adjusting means 5 for adjusting the length of the bolt 44 by adjusting the degree of overlap of the first body 152a and the second body 152b. Actually, the bolts 44 are arranged horizontally, but the following description will be made with reference to the direction shown in Fig. 6 for convenience of explanation)

More specifically, as shown in FIG. 6, the length adjusting means 5 mainly includes an adjusting projection 51, an access groove 52, an elastic member 53 provided on the outer first body 152a side, And engagement grooves 55 provided on the second body 152b side.

For each configuration, first, the adjusting projection 51 is provided on the outer first body 152a side so as to protrude inward.

The next entry and exit groove 52 is formed in the outer first body 152a and accommodates the adjustment projection 51 pressed by the outer surface of the inner second body 152b with the adjustment projection 51 coming in and out.

The elastic member 53 is provided inside the access groove 52 and is pressed by the outer surface of the inner second body 152b to release the pressing of the adjusting projection 51 received in the access groove 52 (When the adjustment projection 51 is located at one of the engagement grooves 55), the adjustment projection 51 is pushed out to be inserted into any one of the engagement grooves 55.

The following engagement grooves 55 are arranged perpendicular to the second body 152b and the adjustment projections 51 pushed by the elastic members 53 are inserted. The first and second bodies 152a, The length of the bolt 44 is adjusted by adjusting the overlap length of the bolts 152b and the engagement between the engagement protrusions and the engagement recesses 55, that is, the engagement protrusions is inserted into any one of the plurality of engagement recesses 55, The latching grooves 55 are formed in the same structure as the latching grooves 55 and the length of the latching grooves 55 and the latching grooves 55 are the same. do)

6, the engaging grooves 55 have four rectangular inner grooves w1, w2, w3 and w4. In the inner wall of the engaging groove 55, w1 and the one side second inner wall w2 have a first sloped portion s1 and a second sloped portion s2 respectively and the first and second sloped portions s1 and s2 are engaged with the engaging groove 55, In the direction of widening the width of the light guide plate.

The first inner wall w1 may be an inner wall of the lower portion with respect to the upright state of the bolt 44 and the second inner wall w2 may be either an inner wall of the left portion or an inner wall of the right portion. In Fig. 6, the second inner wall w2 is the inner wall of the right side portion.

The fact that the first and second inclined portions s1 and s2 are formed in the direction in which the width of the engaging groove 55 is widened means that the first and second inclined portions s1 and s2 The outer width is formed to be larger than the inner width of the latching groove 55, and it is expected that it is not so difficult for an ordinary technician to understand the structure of the latching groove 55 by this expression.

The structure related to the first inner wall w1 of the latching groove 55 allows the outer first body 152a to move only in a direction of extending the length of the bolt 44. [

Specifically, when the outer first body 152a is lowered, since the first inner wall w1 has the first inclined portion s1, the adjusting projection 51 is easily detached from the engaging groove 55, The length of the bolt 44 can be increased without being influenced by the latching groove 55.

When the outer first body 152a tries to move up, the upper third inner wall w3 keeps the adjusting projection 51 inserted into the locking groove 55, so that the stopping is performed, 55 do not reduce the length of the bolt 44.

Therefore, the structure of the bolt 44 according to the first inner wall w1 of the retaining groove 55 allows the user to pull the outer first body 152a to extend its length, and even if an external force acts on the bolt, It will not diminish.

As described above, the length of the bolt 44 is increased by the first inner wall w1, but the length of the bolt 44 is reduced by the structure of the second inner wall w2 constituting the engaging groove 55 have.

Specifically, when the outer first body 152a is rotated to the right (with the second inner wall w2 set to the right wall) in a state where the adjusting projection 51 is inserted into the engaging groove 55, Since the second inner wall w2 has the second inclined portion s2, the adjusting projections 51 are easily separated from the engaging grooves 55 and escape from the region of the vertically arranged engaging grooves 55 So that the adjustment projection 51 is pressed by the outer surface of the inner second body 152b to be accommodated in the access groove 52. [

The outer first body 152a can be raised without being influenced by the engaging groove 55 and the length of the bolt 44 can be increased because the adjustment projection 51 is inserted into the insertion / . When the length of the bolt 44 is reduced and the length of the bolt 44 is adjusted again, the outer first body 152a is rotated to the left so that the adjusting protrusion 51 is engaged with the engaging groove 55, And then the outer first body 152a may be lowered.

It is also possible to provide the inclined portion on the fourth inner wall w4 located on the opposite side of the second inner wall w2 and the outer first body 152a or the inner second body 152b may be provided with an inclined portion, It is preferable that a restricting member (not shown) for restricting the rotation angle of the outer first body 152a is provided so that the one body 152a does not rotate excessively more than necessary.

6, a first magnetic portion 61 is provided at an end of the adjusting projection 51, and a second magnetic portion 61 is provided at the end of the adjusting projection 51. As a result, 55 may have a second magnetic portion 62 and a third magnetic portion 63 may be provided on the first inner wall w1 (first inclined portion s1) of the engaging groove 55 .

In particular, the first magnetic portion 61 and the third magnetic portion 63 are made of the same pole, and the first magnetic portion 61 and the second magnetic portion 62 are made of different poles. For example, Assuming that the magnetic portion 61 is an N pole, the second magnetic portion 62 is made of the S pole and the third magnetic portion 63 is made of the N pole. Of course, it is obvious that the other surfaces of the first to third magnetic portions 61, 62, 63 are buried without being exposed, and the other surface has opposite poles.

When the adjusting projection 51 is moved toward the engaging groove 55, the first magnetic portion 61 and the second magnetic portion 62 are attracted to each other to enhance the movement of the adjusting projection 51, The first magnetic portion 61 and the third magnetic portion 63 push each other out, and the movement of the adjusting projection 51 is strengthened.

It is preferable that the first to third magnetic portions 61, 62 and 63 are made of a magnetic sheet which is adhered or fused to the adjusting projection 51 or the engaging groove 55.

Particularly, as shown in the lower right-hand chain line area of FIG. 6, the second magnetic portion 62 is provided at the end portion of the engaging groove 55 side, and the head 621a and the column 621a 621b.

A fitting protrusion 621 is inserted into the inner surface of the locking groove 55 and a fitting groove 551 having a wide portion 551a for receiving the head 621a of the fitting protrusion 621 is formed, It is preferable that the magnetic member 62 is structured to be firmly attached by the engagement between the fitting protrusion 621 and the fitting groove 551 when the magnetic portion 62 is attached (or melt-bonded) to the inner surface of the locking groove 55.

In FIG. 6, the third magnetic portion 63 is provided on the first inner wall w1. However, the third inner magnetic portion 63 may be applied to the second inner wall w2. 6 shows the structure of the fitting projection 621 and the fitting groove 551 as well as the first magnetic portion 61 and the third magnetic portion 63, When the first magnetic portion 61 is provided with the fitting protrusion 621, the fitting groove 551 is provided with the adjusting protrusion 51 and when the third magnetic portion 63 is provided with the fitting protrusion 621, The groove 551 will be provided on the first inner wall w1.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is evident that many modifications, additions and substitutions are possible, Should be interpreted as belonging to.

Description of the Related Art [0002]
One; A motor housing 10 according to the present invention; body
11; Side radiating fins 12; Top surface heat sink fin
13; Name plate surface 14; Storage opening
20; A front cover 21; Through-hole
22; Joint ball 30; Back cover
31; Through hole 32; Joining ball
40; A receiving portion 41; case
42; Lid 43; Fastener
44; Bolt 50; support

Claims (4)

In the motor housing,
A body 10 in which a stator and a rotor are housed, a front surface and a rear surface are respectively opened, and a receiving opening 14 is drilled in the outer surface;
A front cover 20 which covers the front opening of the body 10 and forms a through hole 21 through which one side of the motor shaft is inserted;
A rear cover 30 which covers a rear opening of the body 10 and has a through hole 32 through which the other side of the motor shaft is inserted;
(40) formed on a side surface of the body (10) for accommodating electric wires or cables to be connected to circuits and circuits for motor driving,
The accommodating portion (40)
The upper surface opening is opened and closed by the lid 42 and the lower opening has a case 41 connected to the receiving opening 14,
The lid 42 is fastened to the case 41 by inserting the bolt 44 through a fastening hole 43 formed in the body,
Side heat dissipating fins 11 protruding upward from the body of the body 10 are formed on both left and right sides of the body 10,
A top heat radiating fin 12 protruding upward from the body of the body 10 is formed on the upper surface of the body 10,
A pedestal 50 is formed on the lower portion of the body 10,
The bolts 44 include an outer first body 152a and an inner second body 152b that are coupled to each other,
The bolt 44 is provided with a length adjusting means 5 for adjusting the length of the bolt 44 by adjusting the degree of overlap between the first body 152a and the second body 152b,
The length adjusting means 5 includes an adjusting protrusion 51 provided on the first body 152a side and protruding inwardly and an adjusting protrusion 51 formed on the outer surface of the second body 152b, An elastic member 53 provided inside the access groove 52 to push the adjustment protrusion 51 and a second body 152b which is provided in the access groove 52 to receive the adjustment projection 51, And a plurality of engaging grooves 55 into which the adjusting protrusions 51 pushed by the elastic member 53 are inserted,
The latching groove 55 is a rectangular groove and has four inner walls w1, w2, w3 and w4,
The lower first inner wall w1 and the one side second inner wall w2 of the inner walls have a first inclined portion s1 and a second inclined portion s2,
The first and second inclined portions s1 and s2 are formed in a direction to widen the width of the engagement groove 55,
A first magnetic portion 61 is provided on the end of the adjusting projection 51 and a second magnetic portion 62 is formed on the inner surface of the engaging groove 55. The third magnetic portion 63 Wherein the first magnetic portion 61 and the third magnetic portion 63 are of the same polarity and the first magnetic portion 61 and the second magnetic portion 62 are of different poles under,
The first to third magnetic portions 61, 62 and 63 are made of a magnetic sheet which is attached or fused to the adjusting projection 51 or the engaging groove 55,
The second magnetic portion 62 is provided at an end portion of the engaging groove 55 and includes a head protrusion 621 composed of a head 621a and a column 621b having a smaller width than the head 621a,
The fitting protrusion 621 is inserted into the inner surface of the locking groove 55 and the fitting groove 551 having the wide portion 551a for receiving the head 621a of the fitting protrusion 621 is formed Features a motor housing.
delete delete The method according to claim 1,
And a name plate surface (13) is formed between the upper side ends of the side radiating fins (11) or at least two fins of the upper side radiating fins (12) in a flat plate shape.

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