TWM586010U - Motor with local glue-filling of housing - Google Patents

Abstract

A motor for partially filling a casing includes: a casing having a cylindrical body portion to form a rotor slot therein; the casing also has an outer wall surrounding the outside of the cylindrical body portion, and the outer portion A stator slot is formed between the wall and the cylindrical body; a rotor is accommodated in the rotor slot, the rotor has a drive shaft; a stator is accommodated in the stator slot; a gel is filled in the stator The slot covers the stator; an upper bearing is provided on the housing and located above the top plate of the cylindrical body; and a lower bearing is provided on the housing and located below the opening of the cylindrical body; among them, The drive shaft system is rotatably provided on the upper bearing and the lower bearing.

Description

Motor for local potting

This creation is related to the motor, especially a motor with local glue in the casing.

At present, the stator of a known motor is usually fixed on the housing of the motor. In some fixing methods, the motor stator is fixed by glue. In addition to providing a fixed effect to the stator, the glue can also be used to fix the stator. The stator additionally provides a waterproof effect.

Taiwan published invention patent No. I323071, which discloses a waterproof motor stator device and a manufacturing method thereof. The technical focus is that when the stator device is manufactured, a mold sleeve is placed on the outside of the stator, and the stator is filled with glue to cover the stator. After the liquid is cooled and solidified, a waterproof rubber layer is formed by drawing out the mold, thereby achieving the effects of fixing the stator and waterproofing. However, when manufacturing the stator in this way, in addition to first fixing the stator to the housing, a mold and a drawing process are also required. This is not only time consuming in manufacturing, but also increases the cost of preparing the mold. Furthermore, The manufacturing process is also quite complicated.

In view of the aforementioned prior art, when manufacturing a stator of a motor, the glue filling procedure is complicated, has a demolding procedure, and high costs. The present invention proposes a motor with partial shell filling, which can simplify the manufacturing process of the motor, and The stator can still be glued and fixed, and there is no need to use a mold in the process of filling the stator, and there is no problem of drafting and demolding.

According to the effect desired in the above-mentioned creation, the present invention proposes a motor for partially encapsulating a casing, including: a casing having a cylindrical body in the center and forming a rotor slot therein; The opening faces downward, and the top of the cylindrical body has a top plate, the top plate has a perforation, the shell also has an outer wall surrounding the outside of the cylindrical body, and the outer wall has a bottom, and A certain slot is formed between the cylindrical body, the outer wall and the bottom, and the stator slot opening faces upward; a rotor is received in the rotor slot, the rotor has a drive shaft, and the drive shaft system passes upward A perforation of the top plate, and the drive shaft passing downward through the opening of the cylindrical body; a stator, which is accommodated in the stator slot; a gel, which is filled in the stator slot and covers the stator; A bearing is provided on the housing and located above the top plate of the cylindrical body; and a lower bearing is provided on the housing and located below the opening of the cylindrical body; wherein the drive shaft is rotatably provided on the housing; The upper bearing and the lower bearing.

In this way, the present invention directly sets a stator slot for pouring glue on the casing, so that when the gel is filled in the stator slot, the stator is covered, thereby fixing the stator and providing a waterproof effect. This production does not require the use of molds, and does not have the problem of drafting or demolding. Therefore, compared with the known technology, this production can greatly reduce the cost and improve the efficiency.

In order to explain the technical characteristics of this creation in detail, the following preferred embodiments are illustrated in conjunction with the drawings as follows, where:

As shown in FIG. 1 to FIG. 3, a motor 10 for partially filling a casing provided by a preferred embodiment of the present invention is mainly composed of a casing 11, a rotor 21, a stator 31, a colloid 41, and an upper part. The bearing 51 and the following bearing 61 are composed of:

The casing 11 has a cylindrical body portion 12 in the center and forms a rotor slot 121 therein. The opening of the cylindrical body portion 12 faces downward, and the top of the cylindrical body portion 12 has a top plate 122, and the top plate 122 The casing 11 has a perforation 123. The casing 11 also has an outer wall 14 surrounding the outside of the cylindrical body 12, and the outer wall 14 has a bottom 141. The cylindrical body 12, the outer wall 14, and the outer wall 14 A certain slot 15 is formed between the bottom portions 141, and the stator slot 15 is opened upward. As can be seen from FIG. 3, the top edge of the outer wall 14 is not higher than the top end of the cylindrical body portion 12, and the bottom portion 141 is not lower than the bottom end of the cylindrical body portion 12.

The rotor 21 is housed in the rotor slot 121. The rotor 21 has a driving shaft 22, which passes through the through hole 123 of the top plate 122 upward, and the driving shaft 22 passes downward through the cylindrical shape. The opening of the body 12.

The stator 31 is received in the stator slot 15. In actual implementation, the inner wall of the outer wall 14 is further provided with a shoulder portion 142, and the stator 31 bears against the shoulder portion 142 with its body part, thereby achieving the positioning effect.

The colloid 41 may be made of thermoplastic colloid or a resin of a known material, filled in the stator slot 15 and covering the stator 31. In actual implementation, the controller for controlling the motor 10 of the present creation may be provided in the present creation in the form of a circuit board 91. In the setting, the circuit board 91 is electrically connected to the stator 31 by a wire, and The circuit board 91 is partially covered by the glue 41, and the electronic components retaining the top surface of the circuit board 91 are exposed outside the glue 41.

The upper bearing 51 has a set of connecting portions 52, and the socket portion 52 is sleeved on the top of the cylindrical body portion 12 of the housing 11, so that the upper bearing 51 is located above the top plate 122.

The lower bearing 61 has a fixing plate 62. The bottom of the casing 11 has a fixing groove 16. The fixing groove 16 is located below the bottom end opening of the cylindrical body 12. The lower bearing 61 is provided with the fixing plate 62. In the fixing groove 16, it is located below the opening of the cylindrical body portion 12. The upper bearing 51 and the lower bearing 61 are oil-containing bearings, and the upper bearing 51 and the lower bearing 61 each have a sleeve 511, 611, and the drive shaft 22 is passed through the shaft of the upper bearing 51 and the lower bearing 61 The sleeves 511 and 611 are rotatably provided on the upper bearing 51 and the lower bearing 61.

In the current operation, the drive shaft 22 is driven by the action relationship between the rotor 21 and the stator 31, and the drive shaft 22 is rotatably arranged on the upper bearing 51 and the lower bearing 61. The driving shaft 22 can be stably rotated.

It can be known from the above structure that the structure of this creation has a stator slot 15 for pouring glue in the housing 11 itself, so it can be intuitively understood that during the manufacture, the stator is directly completed after the glue is poured and cooled. 31's assembly. It can be seen that the structure of the present invention makes the filling process of the stator 31 simple, which can greatly simplify the manufacturing process of the motor, and does not require a demolding process, and the cost is significantly lower than the known technology.

It must be additionally explained that although this case defines the assembly relationship between the various components, it can also be used upside down or horizontally in actual use, and is not limited by the up-down relationship in the description of this case.

10‧‧‧Motor for local casing filling
11‧‧‧shell

12‧‧‧ cylindrical body

121‧‧‧rotor slot
122‧‧‧Top plate

123‧‧‧perforation

14‧‧‧ facade
141‧‧‧ bottom

142‧‧‧Shoulder

15‧‧‧Stator slot
16‧‧‧Fixed slot

21‧‧‧rotor

22‧‧‧Drive shaft
31‧‧‧ stator

41‧‧‧ Colloid

51‧‧‧Upper bearing
511‧‧‧shaft sleeve

52‧‧‧Socket

61‧‧‧lower bearing
611‧‧‧shaft sleeve

62‧‧‧Fixed plate

91‧‧‧Circuit Board         

FIG. 1 is a combined perspective view of a preferred embodiment of the present invention.
FIG. 2 is an exploded view of a preferred embodiment of the present invention.
FIG. 3 is a sectional view taken along line 3-3 in FIG. 1.

Claims (6)

A motor for locally pouring glue into a casing includes:
A casing having a cylindrical body in the center to form a rotor slot therein, the opening of the cylindrical body facing downwards, and the top of the cylindrical body having a top plate having a perforation, the casing There is also an external wall surrounding the outside of the cylindrical body, and the external wall has a bottom, and a certain slot is formed between the cylindrical body, the external wall and the bottom, and the stator slot opening faces upward;
A rotor accommodated in the rotor slot, the rotor having a drive shaft, the drive shaft system passing through the perforation of the top plate upward, and the drive shaft system passing through the opening of the cylindrical body portion downward;
A stator is accommodated in the stator slot;
A gel filled in the stator slot and covering the stator;
An upper bearing is provided on the housing and located above the top plate of the cylindrical body; and a lower bearing is provided on the housing and located below the opening of the cylindrical body;
The drive shaft is rotatably provided on the upper bearing and the lower bearing. According to the scope of the patent application, the motor of the case is partially glued, wherein: the upper bearing and the lower bearing are oil-containing bearings, and the upper bearing and the lower bearing both have a shaft sleeve, and the drive shaft is provided in Bushings of the upper bearing and the lower bearing. According to the motor of claim 1, the upper bearing has a set of joint portions, and the socket portion is sleeved on the top of the cylindrical body portion. According to the scope of the patent application, the casing is partially filled with a motor, wherein the bottom of the casing has a fixing groove, the fixing groove is located below the bottom end opening of the cylindrical body, and the lower bearing has a fixing plate. , And the fixing plate is arranged in the fixing groove. According to the scope of claim 1 of the patent application, the motor is partially filled with a shell, which further includes a circuit board electrically connected to the stator, and the circuit board is partially covered by the gel, and the top of the circuit board is retained. The surface electronic components are exposed outside the colloid. According to the scope of the patent application, the motor of the casing is partially glued, wherein the inner wall of the outer wall is provided with a shoulder, and the stator is against the shoulder by its body.