CN221263467U - Actuating assembly for charging flap - Google Patents

Abstract

The utility model discloses an actuating assembly of a charging port cover, which is applied to an electric automobile and comprises a shell and a motor arranged in the shell, and is characterized in that the motor comprises a stator and a rotor which can rotate relative to the stator, the rotor comprises a driving part, and the driving part is used for being in transmission connection with the charging port cover; the stator comprises an iron core and a coil, wherein the iron core is integrally 3N-shaped, N is an integer greater than or equal to 1, the coil is sleeved on the iron core after winding is completed, the actuating assembly of the charging cover provided by the utility model adopts a 3N-shaped motor, winding of the motor and assembly with the iron core after winding are simple, rapid and efficient, and realization of automatic production of products is facilitated.

Description

Actuating assembly for charging flap

Technical Field

The utility model relates to the technical field of electric automobiles, in particular to an actuating assembly of a charging cover of an electric automobile.

Background

The electric automobile is a vehicle which takes a vehicle-mounted battery as power and drives wheels to run, has almost zero emission compared with a fuel oil automobile, and accords with the development concept of energy conservation and environmental protection at present.

For battery powered vehicles, charging is an essential element. Accordingly, the electric automobile is provided with a charging port on a vehicle body thereof, and a cover is provided on the charging port to shield dust, rainwater, and the like. In the existing structure, the opening and closing of some charging port covers are driven by a motor, the motor is of a cylindrical structure, a formed tooth slot is narrow, certain inconvenience exists in winding, and the production is time-consuming, labor-consuming and high in cost.

Disclosure of utility model

Therefore, the actuating assembly of the charging port cover is convenient for winding the motor, and is beneficial to saving production time and production cost.

The actuating assembly of the charging port cover is applied to an electric automobile and comprises a shell and a motor arranged in the shell, and is characterized in that the motor comprises a stator and a rotor which can rotate relative to the stator, the rotor comprises a driving part, and the driving part is used for being in transmission connection with the charging port cover; the stator comprises an iron core and a coil, wherein the iron core is integrally 3N-shaped, N is an integer greater than or equal to 1, and the coil is sleeved on the iron core after winding is completed.

In some embodiments, the core is a unitary structure.

In some embodiments, the iron core includes 3N blocks, the 3N blocks are uniformly spaced in the circumferential direction, and an arc section is integrally connected between two adjacent blocks in the circumferential direction.

In some embodiments, each block is formed with a mounting slot for mounting one of the coils, and the arcuate segments collectively enclose a mounting hole for positioning the rotor, and the mounting slot is in communication with the mounting hole.

In some embodiments, each of the blocks includes an arm portion and two wing portions respectively disposed on opposite sides of the arm portion, a mounting groove is formed between the arm portion and the wing portions, and the coil is sleeved on the arm portion and accommodated in the mounting groove.

In some embodiments, two opposite sides of the arm portion respectively protrude towards the mounting groove to form a protrusion, the coil is wound on an insulating wire frame, and the wire frame is sleeved on the arm portion and is in interference fit with the protrusion.

In some embodiments, an axial side end of the wire frame is provided with a conductive terminal, and the conductive terminal is electrically connected with the coil; the other axial side end of the wire frame is provided with a connecting terminal, and the connecting terminal is in abutting connection with the shell.

In some embodiments, fixing lugs are formed on the outer sides of the wing parts, the shell is provided with a fixing seat, and the fixing lugs are connected with the fixing seat to fix the stator in the shell.

In some embodiments, the rotor is rotatably disposed in the center of the stator and includes a rotating shaft and a permanent magnet surrounding the rotating shaft, the permanent magnet being radially opposite to the coil, and the driving part integrally extends outward from the rotating shaft.

In some embodiments, the drive is a pinion gear structure.

Compared with the prior art, the actuating assembly of the charging port cover provided by the utility model adopts the 3N-shaped motor, the coil is wound on the coil holder firstly during assembly of the motor, then the coil holder is assembled with the iron core, and the winding of the motor and the assembly of the motor with the iron core after the winding are simple, quick and efficient, so that the realization of automatic production of products is facilitated.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions of the prior art, the drawings that are needed in the embodiments or the description of the prior art will be briefly described below, it will be obvious that the drawings in the following description are some embodiments of the present utility model, and that other drawings can be obtained according to these drawings without inventive effort to a person skilled in the art.

Fig. 1 is a schematic structural view of an actuating assembly of a charging flap according to an embodiment of the present utility model.

Fig. 2 is an exploded view of the actuation assembly shown in fig. 1.

Fig. 3 is another angular exploded view of the actuation assembly of fig. 1.

Fig. 4 is a radial cross-sectional view of the actuation assembly.

Fig. 5 is an axial cross-sectional view of the actuation assembly.

Reference numerals illustrate:

100. An actuation assembly; 10. a housing; 12. a connection port; 14. a fixing seat; 16. a support base; 20. a motor; 22. a stator; 220. an iron core; 221. a wire frame; 222. a coil; 223. a mounting hole; 224. a wing portion; 225. an arm section; 226. a mounting groove; 227. a first arcuate segment; 228. a second arcuate segment; 229. a protrusion; 24. a rotor; 241. a rotating shaft; 243. a permanent magnet; 245. a fitting hole; 26. a driving section; 27. an ear; 270. a fixing hole; 28. a conductive terminal; 29. and a connection terminal.

Detailed Description

In order that the utility model may be readily understood, a more complete description of the utility model will be rendered by reference to the appended drawings. One or more embodiments of the present utility model are illustrated in the accompanying drawings to provide a more accurate and thorough understanding of the disclosed subject matter. It should be understood, however, that the utility model may be embodied in many different forms and should not be construed as being limited to the embodiments set forth herein.

The same or similar reference numbers in the drawings correspond to the same or similar components; in the description of the present utility model, it should be understood that, if there is an azimuth or positional relationship indicated by terms such as "upper", "lower", "left", "right", etc., based on the azimuth or positional relationship shown in the drawings, it is only for convenience of describing the present utility model and simplifying the description, but it is not indicated or implied that the apparatus or element referred to must have a specific azimuth, be constructed and operated in a specific azimuth, and thus terms describing the positional relationship in the drawings are merely illustrative and should not be construed as limiting the present utility model, and specific meanings of the terms described above may be understood by those of ordinary skill in the art according to specific circumstances.

In addition, if there is a description of "first", "second", etc. in the embodiments of the present utility model, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In addition, if "and/or" and/or "are used throughout, the meaning includes three parallel schemes, for example," a and/or B "including a scheme, or B scheme, or a scheme where a and B are satisfied simultaneously.

In addition, the technical solutions of the embodiments may be combined with each other, but it is necessary to base that the technical solutions can be realized by those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be considered to be absent and not within the scope of protection claimed in the present utility model.

The utility model relates to an electric automobile, in particular to an actuating assembly of a charging cover of the electric automobile. Fig. 1-3 are schematic diagrams of an embodiment of an actuation assembly for a charge door, the actuation assembly including a housing 10 and a motor 20 disposed within the housing 10. Wherein the motor 20 is preferably a brushless dc motor and includes a stator 22 and a rotor 24 that rotates relative to the stator 22. The rotor 24 includes a driving portion 26, and the driving portion 26 is in transmission connection with the charging port cover, so that the motor 20 can drive the charging port cover to open and close, and the use of a user is facilitated. The driving part 26 and the charging port cover may be directly connected, or may be indirectly connected through a connecting element, a transmission element, etc.

In this embodiment, the motor 20 is an inner rotor motor, and the rotor 24 is rotatably disposed at the center of the stator 22. As shown in fig. 2 to 3, the stator 22 includes a core 220, a bobbin 221 sleeved on the core 220, and a coil 222 wound on the bobbin 221. The iron core 220 is formed by stacking a plurality of thin sheets, such as silicon steel sheets, along the axial direction of the motor 20, and the adjacent silicon steel sheets can be connected by means of a buckle, so that the iron core 220 is in an integrated structure after being formed. The core 220 is formed at the inner center thereof with a mounting hole 223, and the mounting hole 223 is preferably a circular through hole for mounting the rotor 24. The rotor 24 includes a rotating shaft 241 and a permanent magnet 243 provided around the rotating shaft 241, the permanent magnet 243 being radially opposite to the coil 222 of the stator 22, and the driving part 26 is connected to the rotating shaft 241.

The core 220 includes 3N blocks disposed around the mounting hole 223, where N is an integer of 1 or more. In the illustrated embodiment, the number of blocks is 3, and the overall configuration of the core 220/stator 22/motor 20 is generally triangular. In other embodiments, the core 220/stator 22/motor 20 is configured with different profiles depending on the number of blocks. For example, when the number of blocks is 6, the overall appearance of the iron core 220/stator 22/motor 20 is hexagonal; for example, when the number of blocks is 9, the overall shape of the core 220/stator 22/motor 20 is nine, which is not shown here. The blocks are uniformly spaced apart in the circumferential direction of the motor 20, and each block is mounted with one of a bobbin 221 and a coil 222 to constitute one magnetic pole of the stator 22.

Referring to fig. 4, each block is substantially W-shaped and includes an arm 225 and two wings 224 symmetrically disposed on opposite sides of the arm 225. The wing 224 and the arm 225 extend substantially in the radial direction of the motor 20, and mounting grooves 226 are formed at intervals in the circumferential direction for mounting the bobbin 221 and the coil 222. The wings 224, the radially inner ends of the arms 225 (i.e., the ends facing the rotor 24) of each block are spaced apart such that the mounting slots 226 communicate with the mounting holes 223. The first arc-shaped section 227 is integrally connected between the radially outer ends (i.e. the ends facing away from the rotor 24) of the wing portions 224 and the arm portions 225 of each block, and the radially inner ends of the corresponding wing portions 224 of circumferentially adjacent blocks are integrally connected through the second arc-shaped section 228, so that the outer periphery side of the iron core 220 is sealed in the circumferential direction, magnetic leakage is effectively reduced, and motor efficiency is improved.

The wire frame 221 is made of an insulating material such as plastic or the like. The wire frame 221 has an annular structure as a whole, and an insertion port is formed therein. The coil 222 is typically an enamel wire tightly wound on the outer wall of the bobbin 221. When assembled, each bobbin 221 is sleeved on the arm 225 of one of the blocks after winding, and the coil 222 is accommodated in the mounting groove 226 of the block and is insulated from the iron core 220 by the bobbin 221. As shown in fig. 4, the opposite sides of the arm 225 are respectively formed with protrusions 229 protruding into the mounting groove 226, so that the circumferential width of the arm 225 at the position of the protrusions 229 is slightly larger than the width of the insertion port of the wire holder 221, and thus, when the wire holder 221 is sleeved on the arm 225, the two are tightly fit and fixed, as shown in fig. 4.

The wire frame 221 is fixedly inserted with a conductive terminal 28, and the coil 222 is electrically connected with the conductive terminal 28. In the present embodiment, the conductive terminals 28 extend outward from the axial side ends of the wire frame 221 for connection with a circuit board (not shown) or the like. A connection port 12 is formed at one side of the housing 10 for connection of the circuit board to an external power source or the like. The magnitude and direction of the current in the coil 222 can be controlled by the circuit board to produce a periodically varying magnetic field that acts with the magnetic field of the permanent magnets 243 of the rotor 24 to rotate the rotor 24 relative to the stator 22 to thereby drive the charge door. The conductive terminals 28 can be integrally fixed in the wire frame 221 during the injection molding of the wire frame 221, so as to simplify the manufacturing process and the subsequent assembly process.

The other axial side end of the wire holder 221 is formed with a connection terminal 29 extending outward for positioning in abutment with the housing 10. In the present embodiment, as shown in fig. 3 and 5, the conductive terminal 28 is located at a side end of the bobbin 221 corresponding to the driving portion 26 of the rotor 24, and the connection terminal 29 is located at a side end of the bobbin 221 facing away from the driving portion 26. When assembled, the connection terminal 29 abuts against the inner wall of the housing 10, and positions the stator 22 in the axial direction. In this embodiment, the iron core 22 of the stator 20 is further formed with a fixing lug 27, and the lug 27 is provided with a fixing hole 270; accordingly, the fixing base 14 is formed on the inner wall of the housing 10 in a protruding manner, and fixing members such as rivets, screws, etc. are connected to the fixing base 14 after passing through the fixing holes 270 formed in the ears 27, thereby fixing the stator 20 in the housing 10. In the illustrated embodiment, the ears 27 are formed at the outer sides of the wings 224.

In the production and manufacture of the stator 22, the wire frame 221 is first molded by injection molding or the like; then, the coil 222 is wound on the bobbin 221, and the winding mode may be a concentrated coil winding method; then, the bobbin 221 with the coil 222 is aligned with the arm 225 of the core 220 and the arm 225 is laterally pressed into the bobbin 221, completing the assembly of the stator 22. In this embodiment, the mounting hole 223 in the center of the core 220 communicates with the mounting slot 226 in the block, and the wire frame 221 may be placed in the mounting hole 223 in alignment with the arm 225 and then crimped. In some embodiments, the core 220 may be a block structure, i.e., each block may be an independent component, and after being assembled with the corresponding wire frame 221 and coil 222, the blocks are spliced to form the stator 22, so as to further facilitate the production and assembly of the stator 22.

After the stator 22 is assembled, the rotor 24 is inserted into the mounting hole 223 in the center of the core 220 of the stator 22, thereby completing the assembly of the motor 20. In the present embodiment, the supporting seat 16 is formed in the housing 10 in a protruding manner, and the mounting hole 245 is formed at the side end of the rotating shaft 241 facing the inner wall of the housing 10. When the motor 20 is mounted to the housing 10, the support base 16 is inserted into the assembly hole 245 of the rotating shaft 241 to axially position the rotor 24. The driving part 26 preferably extends outwards integrally from the side end of the rotating shaft 241 away from the casing 10, and the driving part 26 can be in a pinion structure and meshed with a gear, a rack and other transmission elements to realize speed and torque reduction transmission of power. It should be understood that the driving portion 26 may be a smooth shaft structure or may be a worm structure, etc., and is not limited to a specific embodiment.

The driving assembly of the charging port cover adopts the 3N-shaped motor, the coil is wound on the coil holder firstly during assembly, then the coil holder is assembled with the iron core, the winding of the coil is not limited by the shape and the size of the mounting groove of the iron core and the winding process, the slot filling rate of the coil is effectively improved, and the power density of the motor is improved. Compared with the existing winding on the round iron core, the motor of the actuating assembly is simple, quick and efficient in winding and assembling with the iron core after winding, and is beneficial to realizing automatic production of products. In addition, compared with the traditional circular and square motors, the 3N-sided polygon motor/stator/iron core adopted by the utility model can remove redundant iron core volume parts, has lighter weight and smaller volume, and meets the special requirements of users on installation space.

It should be noted that the above examples merely represent preferred embodiments of the present utility model, and the description thereof is more specific and detailed, but should not be construed as limiting the utility model. It should be noted that it will be apparent to those skilled in the art that modifications and improvements can be made without departing from the spirit of the utility model, such as combining different features of the various embodiments, which are all within the scope of the utility model.

Claims (10)

1. The actuating assembly of the charging port cover is applied to an electric automobile and comprises a shell and a motor arranged in the shell, and is characterized in that the motor comprises a stator and a rotor which can rotate relative to the stator, the rotor comprises a driving part, and the driving part is used for being in transmission connection with the charging port cover; the stator comprises an iron core and a coil, wherein the iron core is integrally 3N-shaped, N is an integer greater than or equal to 1, and the coil is sleeved on the iron core after winding is completed.

2. The actuator assembly of claim 1, wherein the core is of unitary construction.

3. The actuator assembly of claim 1, wherein the core comprises 3N blocks, the 3N blocks being circumferentially equally spaced apart, and wherein an arcuate segment is integrally connected between circumferentially adjacent two of the blocks.

4. An actuator assembly according to claim 3 wherein each block is formed with a mounting slot for mounting one of said coils, said arcuate segments together defining a mounting aperture for locating said rotor, said mounting slots being in communication with said mounting aperture.

5. An actuator assembly according to claim 3, wherein each of said blocks comprises an arm and two wings disposed on opposite sides of said arm, respectively, said arms and wings defining therebetween a mounting slot, said coil being received over said arm and received in said mounting slot.

6. The actuator assembly of claim 5, wherein opposite sides of the arm portion each project toward the mounting slot to form a projection, the coil being wound on an insulating bobbin, the bobbin being disposed over the arm portion and being in interference fit with the projection.

7. The actuator assembly of claim 6, wherein an axial side of the bobbin is provided with a conductive terminal, the conductive terminal being electrically connected to the coil; the other axial side end of the wire frame is provided with a connecting terminal, and the connecting terminal is in abutting connection with the shell.

8. The actuator assembly of claim 5, wherein the wing is formed with a securing ear on an outer side thereof, and the housing is provided with a securing seat, the securing ear being coupled to the securing seat to secure the stator in the housing.

9. An actuator assembly according to any one of claims 1 to 8, wherein the rotor is rotatably arranged in the centre of the stator and comprises a shaft and a permanent magnet surrounding the shaft, the permanent magnet being radially opposite the coil, the drive portion extending integrally outwardly from the shaft.

10. The actuator assembly of claim 9, wherein the drive portion is a pinion gear structure.