Novel stator structure and motor

Abstract

The utility model discloses a novel stator structure. The novel stator structure comprises a stator core; the rubber coating framework is coated outside the stator iron core through injection molding, a winding coil is wound on the surface of the rubber coating framework, a fixed seat is arranged on the side surface of the rubber coating framework, a PIN group is arranged in the fixed seat, and the PIN group is connected with the winding coil; the IN needle group is arranged on the side surface of the rubber-coated framework, so that the position of the PCB can be close to the PIN needle group and also deviates to the side surface of the rubber-coated framework, a part of space is vacated for the top of the rubber-coated framework, and the vacated space can be used for mounting other structures in the motor, such as a reduction gear connected with a rotor and a motor rotor. In this way, the size of the motor shell does not need to be increased in order to make space for the internal structure, so that the whole structure is kept in a small-size state, and the motor can adapt to more devices.

Description

TECHNICAL FIELD

[0001] The utility model relates to motor field especially relates to a novel stator structure and motor. BACKGROUND

[0002] Motor is a kind of equipment for converting electric energy into mechanical energy, is widely used in industry, transportation, household appliances and other fields. Its working principle is based on electromagnetic induction law and electromagnetic force law, through the interaction of stator and rotor, realizes the conversion of electric energy to mechanical energy. Among them, the stator is the fixed part of motor, usually by stator core and stator winding is composed, is used to generate magnetic field.

[0003] The stator winding in motor can be connected with PCB board through PIN pin group, the traditional PIN pin group is set in the stator core and is wrapped by injection molding framework, and the PIN pin is set at the top of the injection molding framework, and the PCB board also needs to be set at the bottom of the injection molding framework, so that the PCB board occupies the space at the top of the injection molding framework, and the top of the injection molding framework is usually also set with some other structures, for example, reduction gear, so that the PCB board and the reduction gear are all occupied at the top of the injection molding framework, which leads to the fact that only the motor shell can be made larger to improve the top space of the injection molding framework, and the large volume motor is not convenient for being applied to some small volume devices. SUMMARY

[0004] In order to overcome the shortcomings of the prior art that the PIN pin is set at the top of the injection molding framework, the PCB board also needs to be set at the bottom of the injection molding framework, so that the PCB board occupies the space at the top of the injection molding framework, and the top of the injection molding framework is usually also set with some other structures, for example, reduction gear, so that the PCB board and the reduction gear are all occupied at the top of the injection molding framework, which leads to the fact that only the motor shell can be made larger to improve the top space of the injection molding framework, and the large volume motor is not convenient for being applied to some small volume devices.

[0005] First aspect

[0006] The utility model provides a novel stator structure, which comprises:

[0007] A stator core;

[0008] An injection molding framework is wrapped outside the stator core, and winding coils are wound on the surface. A fixing seat is provided on the side surface, and a PIN pin group is arranged in the fixing seat. The PIN pin group is connected with the winding coils.

[0009] Optionally, the PIN pin group comprises three-phase PIN pins and a grounding PIN pin. A fixing groove is provided on the stator core, and the tail of the grounding PIN pin is fixed in interference fit with the fixing groove.

[0010] Optionally, the encapsulation framework is provided with an opening, and the wire end of the winding coil passes through the opening and is wound on the three-phase PIN.

[0011] Optionally, the stator core is provided with a clamping groove, and the encapsulation framework is provided with a clamping strip which is clamped and matched with the clamping groove.

[0012] Optionally, the encapsulation framework is provided with a threaded hole seat.

[0013] Optionally, the fixing seat is formed with a through hole corresponding to the position of the three-phase PIN, the three-phase PIN is located in and passes through the through hole, and the through hole is provided with a first limiting stop edge at an opening thereof.

[0014] Optionally, the tail of the grounding PIN is bent to form a U-shaped structure.

[0015] Optionally, the U-shaped structure is provided with a through hole, and the fixing seat is provided with a positioning hole, the position of the positioning hole corresponding to the position of the through hole on the U-shaped structure.

[0016] Optionally, the stator core is provided with a plurality of stator teeth, the encapsulation framework is provided with a tooth groove, each stator tooth is embedded in a tooth groove, and the tooth groove is provided with a second limiting stop edge at a slot opening thereof.

[0017] The second aspect

[0018] The utility model provides a kind of motor, including the novel stator structure of first aspect.

[0019] The utility model has the beneficial effects that: the position of the stator core and the PIN group is determined, then the stator core and the PIN group are encapsulated by injection molding, to form an encapsulation framework, wherein the PIN group is located in the fixing seat of the side of the encapsulation framework, the winding coil is wound on the encapsulation framework, and the PIN group is connected with the winding coil, the PIN group is fixed in the fixing seat on the side of the encapsulation framework, the PIN group is arranged on the side of the encapsulation framework, so that the position of the PCB board can also be close to the PIN group, and the same is deviated to the side of the encapsulation framework, to leave part of space for the top of the encapsulation framework, the space is used to install other structures inside the motor, such as the reduction gear connected with the rotor, so that the size of the motor shell is not increased to leave space for internal structure, so that the overall structure is maintained in a small size, so that the motor can be adapted to more devices. BRIEF DESCRIPTION OF DRAWINGS

[0020] The utility model is further described below in combination with drawings and examples.

[0021] Figure 1 It is an assembly schematic diagram in some examples.

[0022] Figure 2 is Figure 1 is a local enlarged view of A in the middle;

[0023] Figure 3 is a structural explosion diagram in some embodiments;

[0024] Figure 4 is a structural diagram of the stator core and the grounding PIN in some embodiments;

[0025] Figure 5 is a structural diagram of the encapsulation framework in some embodiments.

[0026] BRIEF DESCRIPTION OF DRAWINGS

[0027] 1, stator core; 2, encapsulation framework; 201, winding coil; 202, fixed seat; 203, three-phase PIN; 204, grounding PIN; 101, fixed groove; 205, opening; 102, clamping groove; 206, clamping strip; 207, screw hole seat; 208, first limiting shoulder; 209, positioning hole; 103, stator tooth; 210, tooth groove; 211, second limiting shoulder. DETAILED DESCRIPTION

[0028] The concept, specific structure and generated technical effects of the present application will be described clearly and completely in combination with the embodiments and drawings, so as to fully understand the purpose, features and effects of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all embodiments, based on the embodiments of the present application, other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application. In addition, all the coupling / connection relationships involved in the patent do not mean that the components are directly connected, but means that a better coupling structure can be composed by adding or reducing coupling auxiliary components according to the specific implementation situation. The various technical features in the present application creation can be interactively combined without mutual contradiction and conflict.

[0029] The present application provides a novel stator structure, which is used for being installed in the motor, provides a magnetic field for the motor to make the rotor in the motor rotate, which comprises: a stator core 1; an encapsulation framework 2, which is covered on the outside of the stator core 1 by injection molding, and a winding coil 201 is wound on the surface, and a fixed seat 202 is arranged on the side surface, a PIN group is arranged in the fixed seat 202, and the PIN group is connected with the winding coil 201.

[0030] In implementation, the positions of the stator core 1 and the PIN needle group are determined, and then the stator core 1 and the PIN needle group are encapsulated by injection molding to form an encapsulation framework 2 wrapped outside, wherein the PIN needle group is located in the fixing seat 202 on the side of the encapsulation framework 2, the winding coil 201 is wound on the encapsulation framework 2, and the PIN needle group is connected with the winding coil 201, the PIN needle group is fixed on the fixing seat 202 on the side of the encapsulation framework 2, the PIN needle group is arranged on the side of the encapsulation framework 2, so that the position of the PCB board can also be close to the PIN needle group, and is also deviated to the side of the encapsulation framework 2, thereby leaving part of space on the top of the encapsulation framework 2, and the space can be used to install other structures inside the motor, such as a reduction gear connected with a rotor, so that the size of the motor shell does not need to be increased to leave space for the internal structure, thereby maintaining the overall structure in a small size, so that the motor can be adapted to more devices.

[0031] In some embodiments, the PIN needle group includes three-phase PIN needles 203 and a grounding PIN needle 204, and the stator core 1 is provided with a fixing groove 101, and the tail of the grounding PIN needle 204 is fixed in interference fit with the fixing groove 101.

[0032] In implementation, the PIN needle group is encapsulated with the stator core 1 by injection molding, the PIN needle group includes three-phase PIN needles 203 and a grounding PIN needle 204, the three-phase PIN needles 203 are A-phase PIN needles, B-phase PIN needles, and C-phase PIN needles respectively, the three-phase PIN needles 203 are connected with the winding coil 201, the fixing groove 101 is arranged on the stator core 1, the tail of the grounding PIN needle 204 is fixed in interference fit with the fixing groove 101, and the tail of the PIN needle is fixed on the stator core 1, when the PIN needle is encapsulated with the stator core 1 by injection molding, the risk that the PIN needle is pushed out by injection pressure can be avoided, thereby better achieving the grounding function.

[0033] In some embodiments, the encapsulation framework 2 is provided with an opening 205, and the wire end of the winding coil 201 passes through the opening 205 to be wound on the three-phase PIN needles 203.

[0034] In implementation, the winding coil 201 is wound on the encapsulation framework 2 first, then the wire end of the winding coil 201 passes through the opening 205 on the encapsulation framework 2, and then the wire end is wound on the PIN needle, the opening 205 arranged on the encapsulation framework 2 facilitates the wire end of the winding coil 201 to pass through, and also limits the position of the wire end to avoid deviation.

[0035] In some embodiments, the stator core 1 is provided with a clamping groove 102, the encapsulation framework 2 is provided with a clamping strip 206, and the clamping strip 206 is clamped in fit with the clamping groove 102.

[0036] In the implementation, the stator core 1 is provided with a clamping groove 102. When the injection molding process is performed on the stator core 1 to form the encapsulation framework 2, a clamping strip 206 is formed on the encapsulation framework 2 at a position corresponding to the clamping groove 102. The clamping strip 206 is clamped with the clamping groove 102 to further improve the stability between the encapsulation framework 2 and the stator core 1.

[0037] In some embodiments, the encapsulation framework 2 is provided with a positioning hole 209 and a seat 207.

[0038] In the implementation, the encapsulation framework 2 is provided with the positioning hole 209 and the seat 207, so that the encapsulation framework 2 is conveniently installed inside the motor shell.

[0039] In some embodiments, a through hole is formed on the fixing seat 202 at a position corresponding to the three-phase PIN pin 203. The three-phase PIN pin 203 is located in and passes through the through hole. The through hole is provided with a first limiting stop edge 208 at an opening 205 of the through hole.

[0040] In the implementation, when the three-phase PIN pin 203 is fixed in the encapsulation framework 2 by the injection molding process, three through holes are formed at positions of each PIN pin. The PIN pin is fixed in the through hole, and the head and tail of the PIN pin are exposed outside the encapsulation framework 2. The first limiting stop edge 208 is arranged at the opening 205 of the through hole. The first limiting stop edge 208 is used to limit the head and tail of the PIN pin, so as to maintain the stability of the PIN pin.

[0041] Further, the first limiting stop edge 208 is arranged at both ends of the through hole. The grounding PIN pin 204 is also provided with a through hole. The first limiting stop edge 208 is arranged at one end of the through hole. The first limiting stop edge 208 is composed of four connected bevels. Each bevel is in contact with the PIN pin body, so as to realize omnidirectional limiting. The shape of the first limiting stop edge 208 is determined according to the shape of the PIN pin. In the present application, the PIN pin has a square shape, so the first limiting stop edge 208 is composed of four connected bevels. When the PIN pin has a circular structure, the first limiting stop edge 208 can also be composed of a circular bevel.

[0042] In some embodiments, the tail of the grounding PIN pin 204 is bent to form a U-shaped structure.

[0043] In the implementation, the tail of the grounding PIN pin 204 is bent to form a U-shaped structure, so that the head and tail of the grounding PIN pin 204 are parallel. When the tail of the grounding PIN pin 204 is inserted into the fixing groove 101 of the stator core 1 in an interference fit, the grounding PIN pin 204 can be parallel to the side surface of the stator core 1, which is more conducive to the grounding PIN pin 204 being located on the side surface of the stator core 1 and being parallel to the side surface.

[0044] In some embodiments, the U-shaped structure is provided with a through hole, and the fixing seat 202 is provided with a positioning hole 209, and the position of the positioning hole 209 corresponds to the position of the through hole on the U-shaped structure.

[0045] In implementation, the through hole is arranged on the U-shaped structure, the positioning hole 209 is arranged on the fixing seat 202, the positioning hole 209 corresponds to the position of the through hole on the U-shaped structure, and when the injection molding is performed, the positioning and the prevention of displacement of the grounding PIN needle can be realized by the thimble passing through the positioning hole on the fixing seat and then passing through the through hole on the U-shaped structure, so that the stability of the grounding PIN needle during the injection molding is ensured.

[0046] In some embodiments, the stator core 1 is provided with a plurality of stator teeth 103, the injection molding framework 2 is provided with a tooth groove 210, and each stator tooth 103 is embedded in a tooth groove 210.

[0047] In implementation, the stator core 1 is provided with a plurality of stator teeth 103, and the same number of tooth grooves 210 are formed on the injection molding framework 2 after the injection molding, each stator tooth 103 is embedded in a tooth groove 210, and the second limiting baffle 211 is arranged at the slot opening of each tooth groove 210, the second limiting baffle 211 is in abutment with the stator tooth 103, the position of the stator tooth 103 is limited, and the stability of the stator tooth 103 in the injection molding framework 2 is ensured.

[0048] In the embodiment, the stator core 1 is provided with nine stator teeth 103, and the injection molding framework 2 is provided with nine tooth grooves 210.

[0049] The utility model also provides a motor, the novel stator structure in above-mentioned embodiment.

[0050] The above is a specific description of the preferred embodiment of the utility model, but the utility model is not limited to the above-mentioned embodiment, and those skilled in the art can make various equivalent modifications or replacements without departing from the spirit of the utility model, and these equivalent modifications or replacements are all included in the range defined by the claims of the application.

Claims

1. A novel stator structure characterized in that, The utility model relates to a novel stator structure, including: Stator core; Encapsulating framework is covered in the outside of stator core by injection molding, surface is provided with winding coil, side is equipped with fixed seat, PIN needle group is equipped in fixed seat, PIN needle group is connected with winding coil.

2. The novel stator structure according to claim 1, characterized in that, PIN needle group includes three-phase PIN needle and ground PIN needle, stator core is equipped with fixed groove, and tail portion of ground PIN needle is fixed with fixed groove interference fit.

3. The novel stator structure according to claim 2, characterized in that, Encapsulating framework is equipped with opening, and the wire end of winding coil passes through opening and is provided around three-phase PIN needle.

4. The novel stator structure according to claim 1, characterized by Stator core is equipped with clamping groove, and encapsulating framework has clamping strip, and clamping strip is clamped with clamping groove.

5. The novel stator structure according to claim 1, characterized by Encapsulating framework is equipped with screw hole seat.

6. The novel stator structure according to claim 2, characterized by The position of fixed seat corresponding three-phase PIN needle forms through -hole, and three-phase PIN needle is located in through -hole and passes through through -hole, and the opening of through -hole is equipped with first limit baffle.

7. The novel stator structure according to claim 2, characterized by Tail portion of ground PIN needle is bent and forms U type structure.

8. The novel stator structure of claim 7, wherein U type structure is equipped with through -hole, and fixed seat is equipped with positioning hole, and the position of positioning hole corresponds with the position of through -hole on U type structure.

9. The novel stator structure according to claim 1, characterized by Stator core is equipped with a plurality of stator teeth, and encapsulating framework is equipped with tooth groove, and each stator tooth is embedded in a tooth groove, and the slot of tooth groove is equipped with second limit baffle.

10. An electric machine characterized by The utility model relates to a novel stator structure, including: Stator core; Encapsulating framework is covered in the outside of stator core by injection molding, surface is provided with winding coil, side is equipped with fixed seat, PIN needle group is equipped in fixed seat, PIN needle group is connected with winding coil. PIN needle group includes three-phase PIN needle and ground PIN needle, stator core is equipped with fixed groove, and tail portion of ground PIN needle is fixed with fixed groove interference fit. Encapsulating framework is equipped with opening, and the wire end of winding coil passes through opening and is provided around three-phase PIN needle. Stator core is equipped with clamping groove, and encapsulating framework has clamping strip, and clamping strip is clamped with clamping groove. Encapsulating framework is equipped with screw hole seat. The position of fixed seat corresponding three-phase PIN needle forms through -hole, and three-phase PIN needle is located in through -hole and passes through through -hole, and the opening of through -hole is equipped with first limit baffle. Tail portion of ground PIN needle is bent and forms U type structure. U type structure is equipped with through -hole, and fixed seat is equipped with positioning hole, and the position of positioning hole corresponds with the position of through -hole on U type structure. Stator core is equipped with a plurality of stator teeth, and encapsulating framework is equipped with tooth groove, and each stator tooth is embedded in a tooth groove, and the slot of tooth groove is equipped with second limit baffle. The utility model relates to a novel stator structure, including: Stator core; Encapsulating framework is covered in the outside of stator core by injection molding, surface is provided with winding coil, side is equipped with fixed seat, PIN needle group is equipped in fixed seat, PIN needle group is connected with winding coil. PIN needle group includes three-phase PIN needle and ground PIN needle, stator core is equipped with fixed groove, and tail portion of ground PIN needle is fixed with fixed groove interference fit. Encapsulating framework is equipped with opening, and the wire end of winding coil passes through opening and is provided around three-phase PIN needle. Stator core is equipped with clamping groove, and encapsulating framework has clamping

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