CN218850470U

CN218850470U - Novel plastic package motor

Info

Publication number: CN218850470U
Application number: CN202223211711.2U
Authority: CN
Inventors: 雷伟新; 周向阳
Original assignee: Jiangmen Lt Motor Co ltd
Current assignee: Jiangmen Lt Motor Co ltd
Priority date: 2022-11-30
Filing date: 2022-11-30
Publication date: 2023-04-11
Anticipated expiration: 2032-11-30

Abstract

The utility model discloses a novel plastic package motor, which comprises a shell, a stator and a rotor, wherein the stator and the rotor are both positioned in the shell; the stator comprises an iron core, a winding and an insulating frame for fixing the iron core and the winding; the rotor is inserted into the iron core and the winding and is movably connected with the shell; the shell is provided with a thimble hole matched with the insulating frame, one end of the shell, far away from the thimble hole, is provided with a positioning groove, and the positioning groove extends into the iron core. By arranging the shell and the stator, the insulating frame and the iron core can be stably fixed through the thimble hole and the positioning groove in the injection molding process, the iron core and the insulating frame are prevented from being displaced and loosened in the injection molding process, and the positioning accuracy of the stator and the rotor is ensured; through setting up iron core and insulating frame, the injection molding machine can be through thimble hole and constant head tank centre gripping stator steadily, avoids the winding to take place the condition of displacement, guarantees the performance of plastic envelope motor, improves the production yields of novel plastic envelope motor.

Description

Novel plastic package motor

Technical Field

The utility model belongs to the technical field of the motor technique and specifically relates to a novel plastic envelope motor.

Background

With the application of new materials and the improvement of the manufacturing process flow, the injection molding motor has higher precision and more reliable design, effectively reduces the vibration and noise of the motor, and ensures that the injection molding motor operates more stably. Therefore, the tighter structure puts higher demands on the positioning accuracy of components such as the injection molding type motor inner end cover, the stator, the rotor and the like. In the actual production process, the concentricity of the stator and the rotor is reduced under the condition that the stator and the rotor are easy to displace in the injection molding process, so that the motor shell cannot be accurately injection molded, the production yield of the motor is greatly influenced, and the production cost of the motor is improved.

Disclosure of Invention

In order to solve the problem, an object of the utility model is to provide a novel plastic envelope motor improves the accurate nature in location of stator and rotor, guarantees the production yields of plastic envelope motor.

The utility model provides a technical scheme that its problem adopted is:

a novel plastic package motor comprises a shell, a stator and a rotor, wherein the stator and the rotor are both positioned in the shell; the stator comprises an iron core, a winding and an insulating frame for fixing the iron core and the winding; the rotor is inserted into the iron core and the winding and is movably connected with the shell; the shell is provided with a thimble hole matched with the insulating frame, one end of the shell, far away from the thimble hole, is provided with a positioning groove, and the positioning groove extends into the iron core.

The novel plastic package motor at least has the following beneficial effects: by arranging the shell and the stator, the insulating frame and the iron core can be stably fixed through the thimble hole and the positioning groove in the injection molding process, the iron core and the insulating frame are prevented from being displaced and loosened in the injection molding process, and the positioning accuracy of the stator and the rotor is ensured; through setting up iron core and insulating frame, the injection molding machine can avoid the winding to take place the condition of displacement through thimble hole and constant head tank centre gripping stator steadily, guarantees the performance of plastic envelope motor, improves the production yields of novel plastic envelope motor.

Furthermore, an end cover is fixed at the upper end of the shell, and the thimble hole is located on the side face of the end cover. Through setting up the end cover, improved the stability of linking of shell and rotor, also guaranteed that the injection molding machine can stably support insulating frame through the thimble hole, improved the location accuracy nature of stator.

Further, the thimble holes are uniformly distributed on the side face of the end cover around the rotor. The structure ensures that the injection molding machine can uniformly support the insulating frame through the stress of the thimble hole, avoids the position deviation of the insulating frame due to uneven stress, and improves the production yield of the novel plastic package motor.

Further, the number of the thimble holes is four. The structure ensures that the injection molding machine can stably support the insulating frame through the thimble holes, and effectively avoids the influence of excessive quantity of the thimble holes on the sealing performance of the plastic package motor.

Further, the positioning groove is located between the rotor and the iron core. The structure ensures that the injection molding machine can fix the iron core through the positioning groove, simplifies the structure of the shell and improves the production yield of the novel plastic package motor.

Further, the inboard of iron core is equipped with the draw-in groove, the constant head tank by the shell is followed the direction that is close to the draw-in groove is sunken to be formed. Through setting up the draw-in groove, guaranteed the stability of being connected between constant head tank and the iron core, guarantee that the injection molding machine can pass through the fixed iron core of constant head tank, avoid the iron core to take place to rotate, influence the performance of novel plastic envelope motor.

Furthermore, a reinforcing rib for supporting the stator is further arranged in the shell. Through setting up the strengthening rib, the area of contact of effective increase shell and stator improves the stability of being connected of stator and shell.

Further, the height of the reinforcing ribs gradually increases in a direction away from the stator. The structure ensures the structural stability of the shell, avoids the situation that reinforcing ribs cannot be molded in the injection molding process, and improves the production yield of the novel plastic package motor.

Furthermore, a lead is arranged on the shell and is electrically connected with the stator through a wiring hole. Through setting up wiring hole and lead wire, the stator of being convenient for is connected with external power supply, improves the convenience in use of novel plastic envelope motor.

Furthermore, a buckle for fixing the thermosensitive component is arranged below the wiring hole. Through setting up the buckle, be convenient for fixed temperature sensing part fixes steadily in the below in wiring hole, improves the security of novel plastic envelope motor.

The novel plastic package motor has the beneficial effects that: by arranging the shell and the stator, the insulating frame and the iron core can be stably fixed through the thimble hole and the positioning groove in the injection molding process, the iron core and the insulating frame are prevented from being displaced and loosened in the injection molding process, and the positioning accuracy of the stator and the rotor is ensured; by arranging the iron core and the insulating frame, the injection molding machine can stably clamp the stator through the thimble hole and the positioning groove, so that the condition that the winding is displaced is avoided, the performance of the plastic package motor is ensured, and the production yield of the novel plastic package motor is improved; by arranging the end cover, the link stability of the shell and the rotor is improved, the injection molding machine is also ensured to stably support the insulating frame through the thimble hole, and the positioning accuracy of the stator is improved; through setting up the strengthening rib, effectively increase the area of contact of shell and stator, improve the stability of being connected of stator and shell.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

The above and additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

fig. 1 is a schematic structural view of a novel plastic package motor according to an embodiment of the present invention;

fig. 2 is a top view of a novel plastic package motor according to an embodiment of the present invention;

fig. 3 is a bottom view of the novel plastic package motor according to the embodiment of the present invention;

FIG. 4 is a cross-sectional view of the housing and stator of FIG. 1 in a vertical orientation;

FIG. 5 is a cross-sectional view of the housing and stator of FIG. 1 in a horizontal orientation;

fig. 6 is a cross-sectional view of the housing of fig. 1 in a vertical direction.

Detailed Description

Reference will now be made in detail to the embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention.

Referring to fig. 1 to 5, an embodiment of the present invention provides a novel plastic package motor, including a housing 100, a stator 200, and a rotor 300, where the stator 200 and the rotor 300 are both located in the housing 100; the stator 200 includes a core 210, a winding 220, and an insulating frame 230 for fixing the core 210 and the winding 220; the rotor 300 is inserted into the iron core 210 and the winding 220 and movably connected with the housing 100; the shell 100 is provided with a thimble hole 110 matched with the insulating frame 230; the end of the casing 100 away from the top pin hole 110 is provided with a positioning groove 120, and the positioning groove 120 extends into the iron core 210.

By arranging the casing 100 and the stator 200, the insulating frame 230 and the iron core 210 can be stably fixed through the thimble hole 110 and the positioning groove 120 in the injection molding process, so that the iron core 210 and the insulating frame 230 are prevented from being displaced and loosened in the injection molding process, and the positioning accuracy of the stator 200 and the rotor 300 is ensured; through setting up iron core 210 and insulating frame 230, the injection molding machine can be through thimble hole 110 and constant head tank 120 centre gripping stator 200 steadily, avoids winding 220 to take place the condition of displacement, guarantees the performance of plastic envelope motor, improves the production yields of novel plastic envelope motor.

In another embodiment, an end cap 130 is fixed to the upper end of the housing 100, and the top pinhole 110 is located at the side of the end cap 130. By arranging the end cover 130, the link stability of the housing 100 and the rotor 300 is improved, the injection molding machine is also ensured to stably support the insulating frame 230 through the thimble hole 110, and the positioning accuracy of the stator 200 is improved.

In another embodiment, the lift pin holes 110 are evenly distributed around the rotor 300 on the side of the end cap 130. By the aid of the structure, the injection molding machine can uniformly support the insulating frame 230 under stress through the top pinhole 110, the insulating frame 230 is prevented from shifting due to uneven stress, and the production yield of the novel plastic package motor is improved.

In another embodiment, the number of pinhole apertures 110 is four. By adopting the structure, the injection molding machine can stably support the insulating frame 230 through the top pin holes 110, and the sealing performance of the plastic package motor is effectively prevented from being influenced by excessive number of the top pin holes 110.

In another embodiment, the positioning groove 120 is located between the rotor 300 and the core 210. The structure ensures that the injection molding machine can fix the iron core 210 through the positioning groove 120, also simplifies the structure of the shell 100, and improves the production yield of the novel plastic package motor.

In another embodiment, the iron core 210 has a slot (not shown) on the inner side, and the positioning slot 120 is formed by the housing 100 being recessed in a direction close to the slot. Through setting up the draw-in groove, guaranteed the stability of being connected between constant head tank 120 and the iron core 210, guarantee that the injection molding machine can take place to rotate, influence the performance of novel plastic envelope motor through constant head tank 120 fixed iron core 210.

Referring to fig. 4 and 6, in another embodiment, a reinforcing rib 140 for supporting the stator 200 is further provided in the housing 100. By arranging the reinforcing ribs 140, the contact area between the housing 100 and the stator 200 is effectively increased, and the connection stability between the stator 200 and the housing 100 is improved.

In another embodiment, the height of the reinforcing ribs 140 is gradually increased in a direction away from the stator 200. The structure ensures the structural stability of the shell 100, avoids the situation that the reinforcing ribs 140 cannot be molded in the injection molding process, and improves the production yield of the novel plastic package motor.

In another embodiment, the casing 100 is provided with a lead 150, and the lead 150 is electrically connected to the stator 200 through the wiring hole 160. Through setting up wiring hole 160 and lead wire 150, the stator 200 of being convenient for is connected with external power supply, improves the convenience of use of novel plastic envelope motor.

In another embodiment, a snap 170 for fixing a heat sensitive member is provided below the wire hole 160. Through setting up buckle 170, be convenient for fixed temperature sensing part fixes steadily in the below of wiring hole 160, improves the security of novel plastic envelope motor.

The working principle of the present invention will be further explained below.

In the production process, according to the size requirement of the motor, selecting the iron core 210, the insulating frame 230 and the rotor 300 with corresponding sizes to enable the iron core 210 to be matched with the rotor 300; then, the iron core 210 is installed in the insulating frame 230, and a winding operation is performed outside the iron core 210 to form a winding 220, so as to form the stator 200; next, the stator 200 and the rotor 300 are placed in an injection mold; then, a bearing (not shown) and an end cover 130 are placed above the stator 200, and the rotor 300 is inserted into the stator 200 and movably connected with the bearing and the end cover 130; then, in the process of closing the mold of the injection mold, the four ejector pins are attached to the upper end of the insulating frame 230, and meanwhile, the iron core positioning pins extend into the iron core 210 and are inserted into the clamping grooves; at the moment, the thimble and the iron core positioning needle can stably clamp the stator 200, thereby effectively avoiding the situations of displacement and rotation of the stator 200 in the production process and ensuring the performance of the motor; and finally, performing injection molding operation to form the shell 100 wrapping the stator 200, wherein the positions of the four ejector pins form ejector pin holes 110, the positions of the iron core positioning pins form positioning grooves 120, and reinforcing ribs 140 are formed below the stator 200. In the process of moulding plastics, because thimble and iron core pilot pin can stably centre gripping stator 200, effectively avoid stator 200 and rotor 300 to take place the displacement, guarantee stator 200 and rotor 300's concentricity, reduce the size of motor effectively, be convenient for carry out miniaturized design to the motor, improve the production yields and the life of novel plastic envelope motor.

As can be seen from the above description, the novel plastic package motor of the present invention, by providing the housing 100 and the stator 200, can stably fix the insulating frame 230 and the iron core 210 through the thimble hole 110 and the positioning groove 120 in the injection molding process, so as to avoid the situation that the iron core 210 and the insulating frame 230 are displaced and loosened in the injection molding process, and ensure the positioning accuracy of the stator 200 and the rotor 300; by arranging the iron core 210 and the insulating frame 230, the injection molding machine can stably clamp the stator 200 through the thimble hole 110 and the positioning groove 120, so that the situation that the winding 220 is displaced is avoided, the performance of the plastic package motor is ensured, and the production yield of the novel plastic package motor is improved; by arranging the end cover 130, the link stability of the housing 100 and the rotor 300 is improved, the injection molding machine is also ensured to stably support the insulating frame 230 through the thimble hole 110, and the positioning accuracy of the stator 200 is improved; by arranging the reinforcing ribs 140, the contact area between the housing 100 and the stator 200 is effectively increased, and the connection stability between the stator 200 and the housing 100 is improved.

The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made without departing from the gist of the present invention within the knowledge range of those skilled in the art.

Claims

1. A novel plastic package motor is characterized by comprising a shell, a stator and a rotor, wherein the stator and the rotor are both positioned in the shell; the stator comprises an iron core, a winding and an insulating frame for fixing the iron core and the winding; the rotor is inserted into the iron core and the winding and movably connected with the shell; the shell is provided with a thimble hole matched with the insulating frame, one end, far away from the thimble hole, of the shell is provided with a positioning groove, and the positioning groove extends into the iron core.

2. The novel plastic package motor according to claim 1, wherein an end cap is fixed to an upper end of the housing, and the thimble hole is located on a side surface of the end cap.

3. The novel plastic package motor according to claim 2, wherein the pin ejection holes are uniformly distributed around the rotor on the side surface of the end cover.

4. The novel plastic package motor according to claim 3, wherein the number of the top pin holes is four.

5. The novel plastic package motor according to claim 1, wherein the positioning groove is located between the rotor and the iron core.

6. A novel plastic package motor according to claim 5, wherein a clamping groove is formed in the inner side of the iron core, and the positioning groove is formed by the housing being recessed in a direction close to the clamping groove.

7. The novel plastic package motor according to claim 1, wherein a reinforcing rib for supporting the stator is further arranged in the housing.

8. A novel plastic package motor according to claim 7, wherein the height of the reinforcing ribs gradually increases in a direction away from the stator.

9. The novel plastic package motor according to claim 1, wherein a lead is disposed on the housing, and the lead is electrically connected to the stator through a wiring hole.

10. The novel plastic package motor according to claim 9, wherein a fastener for fixing a heat sensitive component is provided below the wiring hole.