CN212909240U

CN212909240U - Stator module locating hole built-in fixing structure

Info

Publication number: CN212909240U
Application number: CN202021554993.4U
Authority: CN
Inventors: 胡智武; 万鹏
Original assignee: Keboda Chongqing Automobile Electronics Co ltd
Current assignee: Keboda Chongqing Automobile Electronics Co ltd
Priority date: 2020-07-31
Filing date: 2020-07-31
Publication date: 2021-04-06
Anticipated expiration: 2030-07-31

Abstract

The application discloses built-in fixed knot of stator module locating hole constructs, which comprises a housin, the casing includes interface and mounting groove, the inside front position of mounting groove is equipped with the circular recess that is used for installing stator module and rotor subassembly, the cell wall of circular recess centers on for the annular protection wall, the centre of a circle position of circular recess is provided with the rotor shaft, the rotor shaft encloses to be equipped with and is located stator module positioning screw hole and the first spacing post of the first pivot of gear in the circular recess, stator module is last to be equipped with two at least stator module locating holes that pierce through surface about the ring body, the first spacing post of the first pivot of gear passes one of them the stator module locating hole, the utility model discloses an arrange stator module's inside in with the mounting hole, reduced the overall installation space, reduced design cost. And the mounting holes are subjected to layout design of gear combination, so that the center distance of the gears is greatly reduced, and the spatial layout of a gear rotating system in the whole shell is shrunk.

Description

Stator module locating hole built-in fixing structure

Technical Field

The application relates to the field of direct current motors, in particular to a stator assembly positioning hole built-in fixing structure.

Background

The existing stator assembly of the brushless direct current motor needs to be fixed on a shell as a non-rotating part, so that the stator assembly is prevented from moving circumferentially or axially during working, a positioning hole is generally formed in the outer edge of the stator assembly, and a gear cannot be arranged on the stator assembly.

Some stator assemblies of the existing permanent magnet brushless direct current motor are installed in a special shell of the motor and then are fixed to the shell, and the stator assemblies are directly injected and form an exposed mounting bracket by injection molding and then are fixed to the shell. The former requires higher cost to support the design of the dedicated housing and also increases weight; the latter is the stator module fixed mode that current little special motor is more commonly used, but because the installation skeleton of moulding plastics can occupy the space beyond the stator module external diameter, can lead to whole stator module installation space increase, leads to whole product volume grow. The cost is also increased.

SUMMERY OF THE UTILITY MODEL

Based on this, the utility model provides a stator module locating hole built-in fixed knot constructs, the utility model provides a to the requirement at little special motor field space compactness, reduced the installation controlling part, effectively possessed stator fixed function simultaneously. The application discloses the following technical scheme:

the application discloses a stator module locating hole built-in fixed knot constructs, including the casing, the casing includes interface and mounting groove, the inside front position of mounting groove is equipped with the circular recess that is used for installing stator module and rotor subassembly, the cell wall of circular recess is that annular protection wall centers on, the centre of a circle position of circular recess is provided with the rotor pivot, the pot head is equipped with the rotor subassembly under the rotor pivot, the pot head is equipped with the rotor gear on the rotor pivot, the rotor pivot encloses stator module location screw hole and the first pivot spacing post of gear that is located in the circular recess, be provided with first pivot on the first pivot spacing post of gear, the pot head is equipped with first gear assembly on the first pivot, stator module is the ring form, the stator module cover is established at the stator module outward flange and is located annular protection wall, the edge of the stator assembly is in close contact with the annular protection wall, at least two stator assembly positioning holes penetrating through the upper surface and the lower surface of the ring body are formed in the stator assembly, the stator assembly positioning holes are symmetrically distributed according to the circle center, the first gear rotating shaft limiting column penetrates through one of the stator assembly positioning holes, and the rest stator assembly positioning holes which are not penetrated by the first gear rotating shaft limiting column are connected with the installation groove through bolts.

In a possible implementation mode, the upper end edge of the stator assembly is provided with a plurality of inversed buckles, and the inversed buckles are in an inversed L shape.

In a possible implementation manner, the front ends of the side walls on the two sides of the mounting groove are provided with wedge blocks, the shell is provided with shell body positioning threaded holes, and the inside of the mounting groove is provided with shell body positioning holes.

In a possible implementation manner, the annular protection wall extends outwards to form the gear second rotating shaft limiting column, and a second rotating shaft is arranged on the gear second rotating shaft limiting column.

In a possible implementation manner, a gear second rotating shaft limiting column is arranged on the mounting groove and located at the position where the annular protection wall extends outwards, a second rotating shaft is mounted on the gear second rotating shaft limiting column, and a second gear assembly is sleeved on the second rotating shaft.

In a possible implementation manner, a gear third rotating shaft limiting column is arranged in the mounting groove, a third rotating shaft is arranged on the gear third rotating shaft limiting column, and a third gear assembly is sleeved on the third rotating shaft.

In a possible implementation manner, a gear fourth rotating shaft limiting column is arranged in the mounting groove, a fourth rotating shaft is arranged on the gear fourth rotating shaft limiting column, and a fourth gear assembly is sleeved on the fourth rotating shaft.

In a possible implementation manner, a spline mounting groove is formed in the mounting groove, and spline teeth are arranged on the spline mounting groove.

In one possible embodiment, the spline mounting groove is surrounded by a layer of annular semi-surrounding vertical wall, and the opening of the annular semi-surrounding vertical wall is positioned on the axes of the spline mounting groove and the gear fourth rotating shaft limit column.

In a possible embodiment, the gear first rotating shaft limiting column, the gear second rotating shaft limiting column, the gear third rotating shaft limiting column and the gear fourth rotating shaft limiting column are all integrated with the housing through injection molding.

The application discloses a built-in fixed knot of stator module locating hole constructs has following beneficial effect: through installing the design in stator module inner space, let the mounting hole arrange stator module's inside in, not only reduced whole installation space, improved the compact degree of product, still carried out the lightweight design to stator module, reduced design cost. The utility model discloses not only there is technical innovation on the fixed mode of installation, still carries out gear combination's overall arrangement design with one of them mounting hole, has reduced the gear centre-to-centre spacing greatly, has shrunk the gear rotation system spatial layout in the whole casing, realizes product lightweight design.

Drawings

The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining and illustrating the present application and should not be construed as limiting the scope of the present application.

Fig. 1 is a three-dimensional structure of a housing of a fixing structure built in a positioning hole of a stator assembly disclosed in the present application;

FIG. 2 is a fragmentary view of the circular groove portion of the upper drawing;

FIG. 3 is a top view of a stator assembly fixture built-in to a stator assembly locating hole as disclosed herein;

FIG. 4 is a partial schematic view of the stator assembly locating holes of the previous figures;

FIG. 5 is a perspective view of a fixed structure toothed wheel assembly as disclosed herein;

fig. 6 is a perspective view of a stator assembly and a rotor assembly as disclosed herein.

Reference numerals: the structure comprises a shell 100, an interface 101, a mounting groove 102, a stator assembly 200, a stator assembly positioning hole 201, a rotor assembly 3, a gear first rotating shaft limiting column 4, a first gear assembly 5, a rotor gear 6, a gear second rotating shaft limiting column 7, a gear third rotating shaft limiting column 8, a gear fourth rotating shaft limiting column 9, a spline mounting groove 10, a rotor rotating shaft 11, a first rotating shaft 12, a second rotating shaft 13, a third rotating shaft 14, a fourth rotating shaft 15, a spline 16, a second gear assembly 17, a third gear assembly 18, a fourth gear assembly 19, an inverted buckle 20, an outer shell positioning threaded hole 21, a shell positioning hole 22, an annular protection wall 23, a wedge block 24, a stator assembly positioning threaded hole 25 and a bolt 26.

Detailed Description

In order to make the implementation objects, technical solutions and advantages of the present application clearer, the technical solutions in the embodiments of the present application will be described in more detail below with reference to the drawings in the embodiments of the present application.

A fixing structure built in the positioning holes of the stator assembly disclosed in the present application is described in detail with reference to fig. 1 to 6.

The embodiment discloses a fixing structure for positioning holes of a stator assembly, which comprises a shell 100, a shell 100 and a mounting groove 102, wherein the shell 100 comprises a connector 101 and the mounting groove 102, the front end of the inside of the mounting groove 102 is provided with a circular groove for mounting the stator assembly 200 and a rotor assembly 3, the groove wall of the circular groove is surrounded by an annular protection wall 23, the circle center position of the circular groove is provided with a rotor rotating shaft 11, the lower end of the rotor rotating shaft 11 is sleeved with the rotor assembly 3, the upper end of the rotor rotating shaft 11 is sleeved with a rotor gear 6, the rotor rotating shaft 11 is surrounded by a stator assembly positioning threaded hole 25 and a first gear rotating shaft limiting column 4 which are positioned in the circular groove, the first gear rotating shaft limiting column 4 is provided with a first rotating shaft 12, the first rotating shaft 12 is sleeved with a first gear assembly 5, the, the edge of the stator assembly 200 is in close contact with the annular protection wall 23, the ring of the stator assembly 200 is provided with at least two stator assembly positioning holes 201 penetrating through the upper and lower surfaces of the ring body, the stator assembly positioning holes 201 are symmetrically distributed according to the circle center of the ring body, the gear first rotating shaft limiting column 4 penetrates through one of the stator assembly positioning holes 201, and the rest stator assembly positioning holes 201 which are not penetrated by the gear first rotating shaft limiting column 4 are connected with the mounting groove 102 through bolts (26).

Interface 101 on casing 100 is used for connecting the control system of car, and mounting groove 102 designs for approximate oval mainly in order to improve space utilization, and in prior art, stator module 200 generally is independent part, and the utility model discloses in, what adopt sets up the gear shaft on stator module, has not only reduced whole installation space, has improved the product compactness degree, has still carried out the lightweight design to stator module, has reduced design cost.

In one possible embodiment, the upper edge of the stator assembly 200 is provided with a plurality of inversed buckles 20, and the inversed buckles 20 have an inversed L shape.

In a possible embodiment, the front ends of the two side walls of the mounting groove 102 are provided with wedge blocks 24, the shell 100 is provided with shell positioning threaded holes 21, and the mounting groove 102 is internally provided with shell positioning holes 22. In this embodiment, the number of the outer housing positioning screw holes 21 is three.

Stator assembly locating hole 201 designs on stator assembly 200 ring, and preferred design is six stator assembly locating holes 201, and the purpose of design is because stator assembly locating hole 201 designs on stator assembly 200's ring, in order to guarantee the stability of executor when the operation.

In the present embodiment, as shown in fig. 4, the gear first shaft limiting column 4 preferably passes through the stator assembly positioning hole 201 close to the second rotating shaft 13 on the stator assembly positioning hole 201.

In a possible embodiment, the annular protection wall 23 is provided with a gear second rotating shaft limiting column 7 extending outwards, and the gear second rotating shaft limiting column 7 is provided with a second rotating shaft 13.

The first gear assembly 5 is sleeved on the first rotating shaft 12, the first gear assembly 5 is divided into an upper gear and a lower gear, and the lower gear of the first gear assembly 5 is meshed with the rotor gear 6.

In a possible embodiment, a gear second rotating shaft limiting column 7 is arranged on the mounting groove 102, the gear second rotating shaft limiting column 7 is located at a position where the annular protection wall 23 extends outwards, a second rotating shaft 13 is mounted on the gear second rotating shaft limiting column 7, a second gear assembly 17 is sleeved on the second rotating shaft 13, the second gear assembly 17 is divided into an upper gear and a lower gear, and an upper gear of the second gear assembly 17 is meshed with an upper gear of the first gear assembly 5.

In a possible embodiment, a third rotating shaft limiting column 8 of the gear is arranged in the mounting groove 102, a third rotating shaft 14 is arranged on the third rotating shaft limiting column 8 of the gear, a third gear assembly 18 is sleeved on the third rotating shaft 14, the third gear assembly 18 is provided with an upper gear and a lower gear, and the upper gear of the third gear assembly 18 is meshed with the lower gear of the second gear assembly 17.

In a possible embodiment, a gear fourth rotating shaft limiting column 9 is arranged in the mounting groove 102, a fourth rotating shaft 15 is arranged on the gear fourth rotating shaft limiting column 9, a fourth gear assembly 19 is sleeved on the fourth rotating shaft 15, the fourth gear assembly 19 is divided into an upper gear and a lower gear, and the lower gear of the fourth gear assembly 19 is meshed with the lower gear of the third gear assembly 18.

In this embodiment, all gear assemblies are combined by upper and lower gears, which is done to save space.

In a possible embodiment, a spline mounting groove 10 is formed in the mounting groove 102, a spline 16 is arranged on the spline mounting groove 10, the spline 16 is engaged with an upper gear of the fourth gear assembly 19, a spline is arranged on the surface of the spline 16, and a through hole is formed in the housing cover, through which the spline 16 passes. The spline designed on the spline 16 is used as an output end to transmit large torque.

In a possible embodiment, the spline mounting groove 10 is surrounded by a layer of annular semi-surrounding vertical wall, and the opening direction of the annular semi-surrounding vertical wall is positioned on the axis of the spline mounting groove 10 and the gear fourth rotating shaft limiting column 9.

In a possible embodiment, the gear first rotating shaft limiting column 4, the gear second rotating shaft limiting column 7, the gear third rotating shaft limiting column 8 and the gear fourth rotating shaft limiting column 9 are all integrated with the casing 100 through injection molding.

The working process is as follows: automobile actuator passes through interface 101 and obtains external power source, form armature reaction magnetic field after the circular telegram by stator module 200, react with rotor module 3's permanent magnet magnetic field, it is rotatory to drive rotor module 3, rotor gear 6 of rotor module 3 drives first gear assembly 5 rotatory, first gear assembly 5 drives second gear assembly 17 rotatory, second gear assembly 17 drives third gear assembly 18 rotatory, third gear assembly drives fourth gear assembly 19 rotatory, fourth gear assembly 19 drives the rotation of flower tooth 16, the spline on the flower tooth 16 is as the output, transmit the big moment of torsion.

In the description of the present application, it is to be understood that the terms "center", "longitudinal", "lateral", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are used merely for convenience in describing the present application and for simplifying the description, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed in a particular orientation, and be operated, and therefore should not be construed as limiting the scope of the present application.

In the present application, "first", "second", and the like are used only for distinguishing one from another, and do not indicate the degree of importance, the order, and the like thereof.

The above description is only for the specific embodiments of the present application, but the scope of the present application is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present application should be covered within the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims

1. A fixed structure with a built-in stator assembly positioning hole is characterized by comprising a shell (100), wherein the shell (100) comprises an interface (101) and a mounting groove (102), a circular groove for mounting a stator assembly (200) and a rotor assembly (3) is arranged at the front end inside the mounting groove (102), the groove wall of the circular groove is an annular protection wall (23), a rotor rotating shaft (11) is arranged at the circle center of the circular groove, the rotor assembly (3) is sleeved at the lower end of the rotor rotating shaft (11), a rotor gear (6) is sleeved at the upper end of the rotor rotating shaft (11), a stator assembly positioning threaded hole (25) and a gear first rotating shaft limiting column (4) which are positioned in the circular groove are surrounded by the rotor rotating shaft (11), a first rotating shaft (12) is arranged on the gear first rotating shaft limiting column (4), the utility model discloses a gear assembly, including rotor assembly (3), annular protection wall (23), stator assembly (200), first pivot (12) are gone up the cover and are equipped with first gear assembly (5), stator assembly (200) are the ring form, stator assembly (200) cover is established at rotor assembly (3) outward flange and is located in annular protection wall (23), the marginal in close contact with of stator assembly (200) annular protection wall (23), be equipped with at least two stator assembly locating holes (201) that pierce through surface about the ring body on stator assembly (200), stator assembly locating hole (201) are according to centre of a circle symmetric distribution, the spacing post of the first pivot of gear (4) pass one of them stator assembly locating hole (201), all the other not quilt the spacing post of the first pivot of gear (4) pass stator assembly locating hole (201.

2. The stator assembly positioning hole built-in fixing structure as claimed in claim 1, wherein a plurality of reverse buckles (20) are arranged on the upper end edge of the stator assembly (200), and the reverse buckles (20) are in an inverted L shape.

3. The fixing structure according to claim 2, wherein the front ends of the two side walls of the mounting groove (102) are provided with a wedge block (24), the shell (100) is provided with a shell positioning threaded hole (21), and the mounting groove (102) is internally provided with a shell positioning hole (22).

4. The stator assembly positioning hole built-in fixing structure according to claim 3, wherein the annular protection wall (23) is provided with a gear second rotating shaft limiting column (7) extending outwards, and a second rotating shaft (13) is arranged on the gear second rotating shaft limiting column (7).

5. The fixing structure with the built-in positioning hole of the stator assembly according to claim 4, wherein a gear second rotating shaft limiting column (7) is arranged on the mounting groove (102), the gear second rotating shaft limiting column (7) is located at a position where the annular protection wall (23) extends outwards, a second rotating shaft (13) is arranged on the gear second rotating shaft limiting column (7), and a second gear assembly (17) is sleeved on the second rotating shaft (13).

6. The stator assembly positioning hole built-in fixing structure according to claim 5, wherein a gear third rotating shaft limiting column (8) is arranged in the mounting groove (102), a third rotating shaft (14) is arranged on the gear third rotating shaft limiting column (8), and a third gear assembly (18) is sleeved on the third rotating shaft (14).

7. The stator assembly positioning hole built-in fixing structure according to claim 6, wherein a gear fourth rotating shaft limiting column (9) is arranged in the mounting groove (102), a fourth rotating shaft (15) is arranged on the gear fourth rotating shaft limiting column (9), and a fourth gear assembly (19) is sleeved on the fourth rotating shaft (15).

8. The stator assembly positioning hole built-in fixing structure as claimed in claim 7, wherein a spline mounting groove (10) is formed in the mounting groove (102), and a spline (16) is formed on the spline mounting groove (10).

9. The stator assembly locating hole built-in fixing structure is characterized in that the spline mounting groove (10) is surrounded by a layer of annular semi-surrounding vertical wall, and the opening of the annular semi-surrounding vertical wall is positioned on the axis of the spline mounting groove (10) and the gear fourth rotating shaft limiting column (9).

10. The stator assembly locating hole built-in fixing structure according to claim 9, wherein the gear first rotating shaft limiting column (4), the gear second rotating shaft limiting column (7), the gear third rotating shaft limiting column (8) and the gear fourth rotating shaft limiting column (9) are all integrated with the housing (100) through injection molding.