TWI659595B - Power module - Google Patents

Abstract

The utility model relates to a power kit for solving the problem that the conventional power motor can easily pull the power cord when starting. The utility model comprises: a motor having a bearing seat on an axial end surface of a casing, the motor having at least one positioning post around the bearing seat; and a buffer ring having at least one closed hole around a central hole, the central hole The at least one closed hole is not radially connected to the central hole, and the at least one closed hole is sleeved over the entire circumference of the at least one positioning post.

Description

Power kit

The present invention relates to a motor, and more particularly to a power kit for a curtain fan.

The conventional air curtain fan has a motor and a buffer ring, and a body is coupled to the outer circumference of the motor, the end surface of the motor has a bearing seat, and at least one post connected to the outer peripheral surface of the bearing housing; the buffer ring is located An accommodating groove of the frame body has a center hole, and the center hole peripheral edge has at least one notch communicating with the center hole. The buffer ring is sleeved in the bearing housing by the central hole, and the at least one slot is sleeved by the at least one slot. The conventional air curtain fan further has an impeller group located in a casing, the impeller group being coupled to the motor and rotatable by the motor, a power cord of the motor bypassing the frame body and connected to an electrical part of the casing a box that passes through a line of holes of the housing and passes through the frame. Thereby, when the motor is running, the impeller group rotates to draw air from an air inlet of the casing and is sent out by an air outlet of the casing.

The buffer ring of the conventional air curtain fan can support the motor and absorb the vibration generated when the motor is operated. At the moment when the air curtain fan is started, the motor is easily rotated by inertia to cause the bearing. The seat rotates relative to the buffer ring that is limited by the frame; at this time, since the slot of the buffer ring is sleeved on the post of the bearing seat, the ring can absorb the rotating force by the buffer ring, so as to The effect of preventing the bearing housing from rotating relative to the buffer ring is achieved.

However, in the conventional air curtain fan, since the slotted opening of the buffer ring directly communicates with the center hole in a radial direction, the notch is easily deformed from the opening to a large extent, thereby causing the post to be easily removed from the slot. Take out in the missing slot. In this way, when the bearing seat rotates relative to the buffer ring, the power line of the motor will be pulled, and since the power line is also limited by the frame, the pulling force often causes the power line to be generated. Poor contact or breakage occurs, seriously affecting the service life of the conventional air curtain fan, and whether it is to select maintenance components or directly replace the entire group of air curtain fans, it will cause additional burden on the user.

In view of this, the conventional air curtain fan does have the necessary improvement.

In order to solve the above problems, an object of the present invention is to provide a power kit which can prevent a power cord of a motor from being pulled to prevent a situation in which the power cord is in poor contact or broken.

A second object of the present invention is to provide a power kit that can have a simple structure and can be easily manufactured by a manufacturer.

It is still another object of the present invention to provide a power kit that saves on the production of materials to reduce the manufacturing cost of the motor.

It is still another object of the present invention to provide a power kit that enhances the assembly convenience of the power pack.

The following directionality or its similar terms, such as "before", "after", "left", "right", "upper (top)", "lower (bottom)", "inside", "outside" The singularity of the present invention is intended to be illustrative only and not to limit the invention.

The power kit of the present invention comprises: a motor having a bearing seat at an axial end surface of a casing, the motor having at least one positioning post located around the bearing housing; and a buffer ring having at least one closed hole at a center Around the hole, the center hole is sleeved in the bearing seat, the at least one closed hole is not in radial communication with the center hole, and the at least one closed hole is sleeved over the entire circumference of the at least one positioning post.

According to the present invention, the power pack of the present invention is sleeved over at least one positioning post of the motor by at least one closed hole of the buffer ring, so that the buffer ring can be firmly coupled to the motor; When the motor is started instantaneously, the motor does not rotate due to the inertia of the bearing housing relative to the buffer ring to prevent the power cord from being pulled, thereby preventing the power cord from being in contact or broken.

Wherein, the bearing seat and the outer casing are integrally formed and connected. Thus, it has the effect of improving the structural strength of the motor.

Wherein, the axial height of the positioning post is lower than the axial height of the bearing housing. In this way, it has the effect of allowing the buffer ring to be fitted to the bearing housing.

The buffer ring has a first end surface and a second end surface. The center hole extends from the first end surface to the second end surface. The buffer ring has a shaft hole extending from the second end surface toward the first end surface. The central hole is in communication with the shaft hole, and the shaft hole has a smaller aperture than the central hole to form a shoulder, the shoulder abutting the bearing seat. In this way, it has the effect of improving the stability of the combination of the buffer ring and the bearing housing.

Wherein, the positioning post is connected to the axial end surface of the outer casing without being connected to the bearing seat. Thus, it has the effect of reducing the manufacturing cost.

Wherein, the motor has at least one connecting portion, and the at least one connecting portion connects the bearing seat and the at least one positioning post. In this way, there is an effect that the at least one positioning post can be firmly positioned around the bearing housing.

Wherein, the positioning post and the connecting portion are connected to the axial end surface of the outer casing. In this way, it has the effect of improving the stability of the positioning post and the connecting portion.

Wherein, the buffer ring is a polygon. In this way, it has the effect of improving assembly convenience.

Wherein, each of the closed holes has the same shape. Thus, it has the advantages of simple structure and ease of manufacture.

The outer wall surface of the bearing housing has at least one first auxiliary positioning portion, the buffer ring has at least one second auxiliary positioning portion radially communicating with the central hole, and the at least one second auxiliary positioning portion is latched on the at least one first Auxiliary positioning section. In this way, it has the effect of improving the stability of the combination of the buffer ring and the bearing housing.

The buffer ring has at least one rib portion connected to the at least one closed hole inner wall, and the at least one rib portion abuts the at least one positioning post. In this way, it has the effect of improving the structural strength of the buffer ring and improving the stability of the combination of the buffer ring and the bearing housing.

Wherein, the number of the positioning columns is two, and the two positioning columns are diametrically opposed. In this way, it has the effect of improving the stability of the combination of the buffer ring and the bearing housing.

In addition, a frame body is coupled to the outer circumference of the motor, the buffer ring is located in a receiving slot of the frame body; the motor has a power cord that passes through a hole of the outer casing and passes through the frame body. . Thus, the structure is simple and can be easily assembled.

The above and other objects, features and advantages of the present invention will become more <RTIgt;

Referring to FIG. 1, the first embodiment of the power kit of the present invention comprises a motor 1 and a buffer ring 2, and the buffer ring 2 is coupled to the motor 1.

Referring to Figures 1 and 2, the motor 1 has a housing 11 with a bearing housing 12 at an axial end surface 11a of the housing 11, and the housing 12 and the housing 11 can be assembled by two members; or As in this embodiment, the bearing housing 12 is selected to be integrally formed with the outer casing 11 to enhance the structural strength of the motor 1. The outer casing 11 may have a wire hole 111, and the wire hole 111 may be located at any position of the outer casing 11. The wire hole 111 of the embodiment is located at the axial end surface 11a. The outer wall surface of the bearing block 12 may have at least one first auxiliary positioning portion 121. The shape and the number of the at least one first auxiliary positioning portion 121 are not limited in the present invention. The first auxiliary positioning portion 121 of the embodiment forms a convex portion. And the number of the first auxiliary positioning portions 121 is described by five (as shown in FIG. 6).

In particular, the bearing housing 12 can be directly extended from the axial end surface 11a as shown in FIG. 4, and a bearing S of the motor 1 is located in the bearing housing 12; alternatively, the bearing housing 12 can also As shown in FIG. 5, a receiving portion Q is formed inside the casing 11, and the receiving portion Q can be accommodated in the bearing S such that the bearing S is located inside the casing 11.

The motor 1 also has a shaft center 13 and at least one positioning post 14 . The shaft core 13 is rotatably protruded from the bearing housing 12 , and the at least one positioning post 14 is located. The bottom end of the at least one positioning post 14 is preferably connected to the axial end surface 11a of the outer casing 11. In the present embodiment, the number of the positioning posts 14 is two, and the two positioning posts 14 are preferably Opposite the radial direction of the bearing housing 12. Moreover, the axial height H1 of the positioning post 14 is preferably lower than the axial height H2 of the bearing housing 12.

The motor 1 can also have at least one connecting portion 15 . The number of the connecting portions 15 is preferably the same as that of the positioning post 14 . The axial height H3 of the connecting portion 15 is preferably lower than the axial height H1 of the positioning portion 14 . The two connecting portions 15 can be connected to the bearing housing 12 and the two positioning posts 14 such that the two positioning posts 14 can be stably located around the bearing housing 12 . Preferably, the connecting portion 15 is connected to the axial end surface 11a of the outer casing 11 at the same time, so that the connecting portion 15 can be connected to the bearing housing 12 by the axial end surface 11a, so that the connecting portion 15 can be more stable. . Furthermore, the motor 1 can also have a power cord 16 which is passed through the wire opening 111 of the housing 11.

Referring to FIGS. 3 and 4, the buffer ring 2 is preferably an even regular polygon. The buffer ring 2 may have a first end surface 2a and a second end surface 2b. The first end surface 2a faces the axis. To the end face 11a, the second end face 2b faces away from the axial end face 11a.

In detail, the buffer ring 2 has a central hole 21 and at least one closed hole 22 extending from the first end surface 2a to the second end surface 2b. The central hole 21 is penetrated by the axial center 13 and sleeved. Fitted to the bearing housing 12. In addition, the at least one closed hole 22 is located around the central hole 21, the at least one closed hole 22 is not in radial communication with the central hole 21, and the at least one closed hole 22 is wrapped around the at least one positioning in a full circumference. Column 14. The number of the closed holes 22 may be plural and located at the opposite sides. The shape of the closed holes 22 may be a quadrangle, a pentagon or a polygon. In the embodiment, the closed holes 22 form a triangle, and each The shape of the closed hole 22 is preferably the same.

The buffer ring 2 can also have a shaft hole 23 extending from the second end surface 2b to the first end surface 2a. The center hole 21 communicates with the shaft hole 23, and the shaft hole 23 has an aperture D2 smaller than the center. The aperture 21 has an aperture D1 to form a shoulder 24 that can abut the housing 12. In addition, the buffer ring 2 may have at least one second auxiliary positioning portion 25 that radially communicates with the central hole 21, and the shape and number of the at least one second auxiliary positioning portion 25 are not limited in the present invention. The positioning portion 25 is formed with a concave portion, and the number of the second auxiliary positioning portions 25 is described by five, so that each of the second auxiliary positioning portions 25 can be locked to each of the first auxiliary positioning portions 121 of the motor 1. .

As shown in FIGS. 4 and 6, the buffer ring 2 may further have at least one rib portion 26 that connects the at least one closed hole 22 inner wall 22a; preferably, the at least one rib portion 26 The at least one rib portion 26 can be completely abutted against the at least one positioning post 14 to ensure that the at least one positioning post 14 does not pass through the at least one. The aperture 22 is closed.

As shown in FIG. 7 , the power pack of the present invention may further include a frame 3 , which is coupled to the outer circumference of the motor 1 ; the frame 3 may have a receiving slot 31 , and the receiving slot 31 . The buffer ring 2 is placed in position, and the power cord 16 of the motor 1 passes through the frame 3. Specifically, in order to support the motor 1, in the embodiment, the frame body 3 can have another accommodating groove 31', and the other accommodating groove 31' can be positioned for another buffer ring 2'. The motor 1 can be stably set at a predetermined position.

Referring to Figures 7 and 8, according to the foregoing structure, when the power kit is applied to a curtain fan, the shaft 13 of the motor 1 can be coupled to an impeller 4, which is rotatably located in a casing 5. The housing 5 can have an electrical box 51 for the power line 16 of the motor 1 to be connected. In this way, when the motor 1 is started, since the two closed holes 22 are completely wrapped around the two positioning posts 14 so that the buffer ring 2 can be firmly coupled to the motor 1, the motor 1 does not cause The inertia causes the bearing housing 12 to rotate relative to the buffer ring 2 to prevent the power cord 16 from being pulled; thereby, the occurrence of poor contact or breakage of the power cord 16 can be avoided. In addition, since the buffer ring 2 is an even regular polygon, and the number of the closed holes 22 is plural and located at the opposite side; thus, when the buffer ring 2 is assembled, the closed holes 22 at any two pairs of edges can be The two positioning posts 14 are fitted to the two, so that the buffer ring 2 can be easily combined with the motor 1 to improve the assembly convenience.

Referring to FIG. 9, which is a second embodiment of the power kit of the present invention, in comparison with the first embodiment, in the embodiment, the motor 1 may also be selected to have no such at least one connecting portion 15 ( As shown in FIG. 3, the positioning post 14 is not connected to the bearing housing 12; thereby, the material to be produced can be saved, and the manufacturing cost can be reduced.

In summary, the power kit of the present invention is configured to be fully wrapped around the at least one positioning post of the motor by using at least one closed hole of the buffer ring, so that the buffer ring can be firmly coupled to the motor; When the motor is started momentarily, the motor does not rotate the bearing housing relative to the buffer ring due to inertia to prevent the power cord from being pulled, thereby preventing the power cord from being in poor contact or broken. occur.

While the invention has been described in connection with the preferred embodiments described above, it is not intended to limit the scope of the invention. The technical scope of the invention is protected, and therefore the scope of the invention is defined by the scope of the appended claims.

﹝this invention﹞

1‧‧‧Motor

11‧‧‧Shell

11a‧‧‧Axial end face

111‧‧‧ wire hole

12‧‧‧ bearing housing

121‧‧‧First Auxiliary Positioning Department

13‧‧‧Axis

14‧‧‧Positioning column

15‧‧‧Connecting Department

16‧‧‧Power cord

2‧‧‧buffer ring

2'‧‧‧buffer ring

2a‧‧‧ first end

2b‧‧‧second end face

21‧‧‧ center hole

22‧‧‧Closed hole

22a‧‧‧ inner wall

23‧‧‧Axis hole

24‧‧‧ shoulder

25‧‧‧Second auxiliary positioning unit

26‧‧‧ Ribs

3‧‧‧ ‧ body

31‧‧‧ accommodating slots

31’‧‧‧ 容 槽

4‧‧‧ Impeller

5‧‧‧Shell

51‧‧‧Electrical box

D1‧‧‧ center hole aperture

D2‧‧‧ shaft aperture

H1‧‧‧ Positioning column axial height

H2‧‧‧Axial height of the bearing housing

H3‧‧‧Axial height of the joint

S‧‧‧ bearing

Q‧‧‧ 容部

[Fig. 1] An exploded perspective view of a first embodiment of the present invention in combination with a frame body. Fig. 2 is a partially exploded perspective view showing the first embodiment of the present invention. [Fig. 3] A cross-sectional perspective view of a buffer ring according to a first embodiment of the present invention. Fig. 4 is a partial cross-sectional view showing a first embodiment of the present invention. [Fig. 5] A partial cross-sectional view of the bearing of the first embodiment of the present invention located inside the casing. [Fig. 6] A cross-sectional view taken along line A-A of Fig. 4. [Fig. 7] An exploded perspective view of a first embodiment of the present invention in combination with a frame body and an impeller. [Fig. 8] A perspective view of a combination of a frame body and an impeller according to a first embodiment of the present invention. Fig. 9 is a partial cross-sectional view showing a second embodiment of the present invention.

Claims (13)

A power kit includes: a motor having a bearing seat on an axial end surface of a casing, the motor having at least one positioning post located around the bearing housing; and a buffer ring having at least one closed hole located around a central hole The central hole is sleeved in the bearing housing, the at least one closed hole is not in radial communication with the central hole, and the at least one closed hole is sleeved over the entire circumference of the at least one positioning post. The power kit of claim 1, wherein the bearing housing is integrally formed with the outer casing. The power kit of claim 1, wherein the positioning post has an axial height lower than an axial height of the bearing housing. The power kit of claim 1, wherein the buffer ring has a first end surface and a second end surface, and the center hole extends from the first end surface to the second end surface, the buffer ring A shaft hole extends from the second end surface toward the first end surface, and the center hole communicates with the shaft hole. The shaft hole has a smaller aperture than the center hole aperture to form a shoulder, and the shoulder abuts the bearing seat. The power kit of claim 1, wherein the positioning post is connected to an axial end surface of the outer casing without being connected to the bearing housing. The power kit of claim 1, wherein the motor has at least one connecting portion connecting the bearing housing and the at least one positioning post. The power kit of claim 6, wherein the positioning post and the connecting portion are connected to an axial end surface of the outer casing. The power kit of claim 1, wherein the buffer ring is a regular polygon. The power kit of claim 8, wherein each of the closed holes has the same shape. The power kit of claim 1, wherein the outer wall surface of the bearing housing has at least one first auxiliary positioning portion, the buffer ring having at least one second auxiliary positioning portion radially communicating with the central hole, the at least A second auxiliary positioning portion is coupled to the at least one first auxiliary positioning portion. The power kit of claim 1, wherein the buffer ring has at least one rib portion connected to the at least one closed hole inner wall, the at least one rib portion abutting the at least one positioning post. The power kit of any one of claims 1 to 11, wherein the number of the positioning posts is two, and the two positioning posts are diametrically opposed. The power kit of claim 12, further comprising a body, the frame is coupled to the outer circumference of the motor, the buffer ring is located in a receiving slot of the frame; the motor has a power cord A line of holes of the outer casing passes through and passes through the frame.