Spliced stator core coil framework and vacuum servo motor

Abstract

The utility model discloses a block-spliced stator core coil framework and a vacuum servo motor. The block-spliced stator core coil framework comprises a plurality of block-spliced assemblies which are arranged in an annular array and are sequentially connected end to end. Any splicing block assembly comprises a stator iron core formed by overlapping and a coil framework arranged on the stator iron core in a sleeving manner; the coil framework comprises an inner framework part, a winding supporting framework part and an outer framework part which are integrally formed, a penetrating groove which sequentially penetrates through the inner framework part, the winding supporting framework part and the outer framework part, second nut grooves which are respectively formed in the upper part and the lower part of the inner wall of the penetrating groove, and end part plates which are arranged at the end parts of the outer framework part in a one-to-one correspondence manner; the first nut grooves are formed in the inner side of the end plate, and the wire outlet columns are arranged on the end plate in a one-to-one correspondence mode. The end part of the core-penetrating connecting assembly in the first overlapped through hole is arranged in the second nut groove; and the end part of the core-penetrating connecting assembly in the second overlapped through hole is arranged in the first nut groove.

Description

Technical Field

[0001] The utility model relates to the technical field of vacuum servo motors, in particular to a block stator iron core coil frame and a vacuum servo motor. Background Art

[0002] A servo motor is a motor that controls the operation of mechanical components in a servo system, and is a kind of auxiliary motor indirect speed change device. Among them, the vacuum servo motor is a type of servo motor, which has the characteristics of high performance, energy saving and high efficiency, long life, and multi-function.

[0003] The stator core is an important part of the motor magnetic circuit. It, together with the rotor core and the air gap between the stator and the rotor, forms the complete magnetic circuit of the motor. The coil skeleton is the supporting and protective component of the stator core, and the core coil is wound on the coil skeleton. At present, the stator core in the prior art is obtained by stacking circular ring-shaped laminations, which has the following problems:

[0004] First, the coil frame must adopt a symmetrical half-structure, and its assembly connection requires external connecting screws and other connecting mechanisms, which increases the overall volume of the stator.

[0005] Second, when winding the stator core obtained by stacking circular ring-shaped laminations, the coil needs to be pre-cut according to the required length and then wound by threading, which is prone to problems such as winding knots or bending, resulting in low efficiency in winding the core coil.

[0006] Therefore, it is urgent to propose a block stator core coil frame and a vacuum servo motor with simple structure, efficient and reliable winding, and small occupied volume. Utility Model Content

[0007] In view of the above problems, the purpose of the utility model is to provide a block stator core coil skeleton and a vacuum servo motor. The technical solution adopted by the utility model is as follows:

[0008] A block stator core coil frame, comprising a plurality of block assemblies arranged in an annular array and connected end to end in sequence; any of the block assemblies comprises a stacked stator core and a coil frame sleeved on the stator core; the stator core comprises an integrally formed laminated inner ring portion, a laminated winding portion and a laminated outer ring portion, a first stacked through hole provided on the laminated winding portion, a plurality of second stacked through holes provided on the laminated outer ring portion, an assembly connector provided on one side of the laminated outer ring portion, an assembly connection groove provided on the other side of the laminated outer ring portion, and a through-core connection assembly placed in the first stacked through hole and the second stacked through hole;

[0009] The coil skeleton includes an integrally formed inner skeleton part, a winding support skeleton part and an outer skeleton part, a through groove which passes through the inner skeleton part, the winding support skeleton part and the outer skeleton part in sequence, a second nut groove which is respectively provided at the upper and lower parts of the inner wall of the through groove, an end plate which is provided at the end of the outer skeleton part in a one-to-one correspondence, a plurality of first nut grooves which are provided on the inner side of the end plate, and a plurality of lead-out posts which are provided on the end plate in a one-to-one correspondence; the end of the through-core connection component in the first overlapping through hole is placed in the second nut groove; the end of the through-core connection component in the second overlapping through hole is placed in the first nut groove; the inner side of the inner skeleton part is squeezed on the outer side of the inner ring part of the laminate; the laminate winding part is sleeved in the through groove; the outer side of the outer skeleton part is squeezed on the inner side of the outer ring part of the laminate.

[0010] Furthermore, the core-penetrating connection assembly includes an upper core-penetrating sleeve and a lower core-penetrating sleeve sleeved in the first stacking through hole or the second stacking through hole, a pin sleeved in the upper core-penetrating sleeve and the lower core-penetrating sleeve, a first connecting nut arranged at one end of the pin, a second connecting nut arranged at the other end of the pin, and an extrusion cap respectively arranged on the outer side of the upper core-penetrating sleeve and the lower core-penetrating sleeve; the extrusion cap is attached to the outer side of the laminate winding part or the laminate outer ring part; the upper core-penetrating sleeve and the lower core-penetrating sleeve are in close contact with the inner wall of the first stacking through hole or the second stacking through hole; the pin is in close contact with the inner wall of the upper core-penetrating sleeve and the lower core-penetrating sleeve; a thread is provided on the end of the pin; the thread is placed on the outer side of the laminate winding part or the laminate outer ring part; the first connecting nut and the second connecting nut are extruded on the outer side of the extrusion cap; the upper core-penetrating sleeve is sleeved and connected with the lower core-penetrating sleeve; the upper core-penetrating sleeve, the extrusion cap, the lower core-penetrating sleeve, the pin are made of the same material as the stator core.

[0011] Furthermore, an upper casing is arranged on the lower side of the upper core-penetrating casing, and a lower casing is arranged on the upper side of the lower core-penetrating casing; the upper casing is sleeved on the lower casing.

[0012] Furthermore, an upper casing is arranged on the lower side of the upper core-penetrating casing, and a lower casing is arranged on the upper side of the lower core-penetrating casing; the lower casing is sleeved on the upper casing.

[0013] Furthermore, the first nut groove and the second nut groove are in a hexagonal shape.

[0014] Furthermore, the assembling connection head and the assembling connection groove are one of circular, dovetail-shaped and trapezoidal.

[0015] Furthermore, a block connection pressing wedge groove is provided between the outlet posts of adjacent coil skeletons; a block connection pressing block is sleeved in the block connection pressing wedge groove; the block connection pressing block is pressed on the assembly connection head and the assembly connection groove, and squeezes the adjacent coil skeletons.

[0016] Furthermore, the block connection pressing block includes an integrally formed wedge block portion and an extruded arc portion; the inner side of the extruded arc portion is fitted to the outer side of the lead-out column of the adjacent coil skeleton, and the lower part is extruded on the assembly connection head and the assembly connection groove.

[0017] A vacuum servo motor is provided with a block stator iron core coil frame.

[0018] Compared with the prior art, the utility model has the following beneficial effects:

[0019] (1) The utility model provides a stator core in a laminated manner and adopts a through-core connection assembly to connect the laminated sheets, thereby reliably connecting the laminated sheets. Furthermore, the through-core connection assembly is in close contact with the laminated sheets to provide a magnetic circuit, thereby effectively reducing magnetic loss. In addition, the utility model provides a first nut groove and a second nut groove, and sleeves the first connecting nut and the second connecting nut to ensure that they are reliably hidden, thereby reducing the occupied volume.

[0020] (2) The utility model provides an integrally formed coil frame and sleeves the first connecting nut and the second connecting nut. The first nut groove and the second nut groove are in the shape of an inner hexagon, which effectively prevents the pin from loosening.

[0021] (3) The utility model provides an upper core-through sleeve and a lower core-through sleeve that are butt-jointed, and places a pin in the upper core-through sleeve and the lower core-through sleeve, and provides an extrusion cap at the end of the upper core-through sleeve and the lower core-through sleeve, so that the pin, the upper core-through sleeve and the lower core-through sleeve are in close contact with the laminations, thereby maintaining a smooth magnetic circuit and ensuring reliable connection of the laminations, thereby reducing magnetic circuit losses.

[0022] (4) The utility model provides an inner frame portion, a winding support frame portion and an outer frame portion, and performs extrusion support on the stator core, thereby ensuring the support reliability of the block stator core coil frame.

[0023] (5) The utility model provides a block stator core coil frame, so that the stator coil can be conveniently and reliably wound on the coil frame without the need for prior cutting, and the winding is efficient and reliable.

[0024] (6) The utility model provides a block connection pressure block and a block connection pressing wedge groove. After the stator core coil skeleton of the block is assembled, the adjacent coil skeletons are squeezed to prevent the skeleton from loosening. The assembly connection heads and assembly connection grooves on the adjacent stator cores are pressed to avoid problems such as warping of the laminated sheets at the connection or enlargement of the gap between the upper and lower laminated sheets at the connection, thereby ensuring the reliability of the connection.

[0025] In summary, the utility model has the advantages of simple structure, efficient and reliable winding, small occupied volume, etc., and has high practical value and promotion value in the field of vacuum servo motor technology. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the embodiments are briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope of protection. For those skilled in the art, other relevant drawings can be obtained based on these drawings without creative work.

[0027] Figure 1 It is a schematic diagram of the assembly structure of the utility model.

[0028] Figure 2 It is a structural schematic diagram of the utility model.

[0029] Figure 3 It is a structural schematic diagram of the stator core of the utility model.

[0030] Figure 4 It is a schematic structural diagram of the laminate inner ring portion, the laminate winding portion and the laminate outer ring portion of the utility model.

[0031] Figure 5 It is a cross-sectional schematic diagram of the stator core of the utility model.

[0032] Figure 6 It is a first partial cross-sectional schematic diagram of the utility model.

[0033] Figure 7 It is a second partial cross-sectional schematic diagram of the utility model.

[0034] Figure 8 This is a schematic diagram of the coil skeleton of the utility model from a first angle.

[0035] Fig. 9 This is a second angle schematic diagram of the coil skeleton of the present invention.

[0036] Fig.10 This is a schematic diagram of the coil skeleton of the utility model from a third angle.

[0037] Fig.11 It is a schematic diagram of the layout of the block connection pressing block and the block connection pressing wedge groove of the utility model.

[0038] Fig.12 It is a structural schematic diagram of the block connection pressing block of the utility model.

[0039] In the above drawings, the component names corresponding to the reference numerals are as follows:

[0040] 1. stator core; 2. coil skeleton; 11. inner ring of laminated sheets; 12. winding part of laminated sheets; 13. outer ring of laminated sheets; 14. first overlapping through hole; 15. second overlapping through hole; 16. assembly connector; 17. assembly connection groove; 18. through-core connection assembly; 181. upper through-core sleeve; 182. lower through-core sleeve; 183. pin; 184. first connection nut; 185. second connection nut; 186. extrusion cap; 1811. upper sleeve; 1821. lower sleeve; 21. inner skeleton; 22. winding support skeleton; 23. outer skeleton; 24. through groove; 25. outlet column; 26. end plate; 27. first nut groove; 28. second nut groove; 29. ​​block connection pressing block; 251. block connection pressing wedge groove; 291. wedge block; 292. extrusion arc portion. DETAILED DESCRIPTION

[0041] In order to make the purpose, technical scheme and advantages of this application clearer, the utility model is further described below in conjunction with the accompanying drawings and embodiments, and the implementation methods of this utility model include but are not limited to the following embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application.

[0042] In this embodiment, the term "and / or" is merely a term used to describe the association relationship of associated objects, indicating that three relationships may exist. For example, A and / or B may represent three situations: A exists alone, A and B exist at the same time, and B exists alone.

[0043] The terms "first" and "second" in the description and claims of this embodiment are used to distinguish different objects rather than to describe a specific order of objects. For example, a first target object and a second target object are used to distinguish different target objects rather than to describe a specific order of target objects.

[0044] In the embodiments of the present application, words such as "exemplary" or "for example" are used to indicate examples, illustrations or descriptions. Any embodiment or design described as "exemplary" or "for example" in the embodiments of the present application should not be interpreted as being more preferred or more advantageous than other embodiments or designs. Specifically, the use of words such as "exemplary" or "for example" is intended to present related concepts in a specific way.

[0045] In the description of the embodiments of the present application, unless otherwise specified, the meaning of "multiple" refers to two or more than two. For example, multiple processing units refer to two or more processing units; multiple systems refer to two or more systems.

[0046] like Figures 1 to 12As shown, this embodiment provides a vacuum servo motor, which is provided with a block stator core coil frame. The block stator core coil frame includes a plurality of block components arranged in a ring shape and connected end to end in sequence. Among them, any block component includes a stacked stator core 1 and a coil frame 2 sleeved on the stator core 1. The stator coil is wound on the coil frame 2. In this embodiment, the structure of each block component is the same, and the winding does not need to be cut in advance, and the winding efficiency is high.

[0047] The stator core 1 includes an integrally formed lamination inner ring portion 11, a lamination winding portion 12 and a lamination outer ring portion 13, a first overlapping through hole 14 provided on the lamination winding portion 12, a plurality of second overlapping through holes 15 provided on the lamination outer ring portion 13, an assembly connector 16 provided on one side of the lamination outer ring portion 13, an assembly connection groove 17 provided on the other side of the lamination outer ring portion 13, and a through-core connection assembly 18 placed in the first overlapping through hole 14 and the second overlapping through hole 15. Adjacent stator cores 1 are connected by the assembly connector 16 and the assembly connection groove 17. The assembly connector 16 and the assembly connection groove 17 are one of circular, dovetail-shaped and trapezoidal.

[0048] In this embodiment, the core-through connection assembly 18 includes an upper core-through sleeve 181 and a lower core-through sleeve 182 sleeved in the first overlapping through hole 14 or the second overlapping through hole 15, a pin 183 sleeved in the upper core-through sleeve 181 and the lower core-through sleeve 182, a first connecting nut 184 arranged at one end of the pin 183, a second connecting nut 185 arranged at the other end of the pin 183, and an extrusion cap 186 respectively arranged on the outer side of the upper core-through sleeve 181 and the lower core-through sleeve 182. The materials of the upper core-penetrating sleeve 181, the lower core-penetrating sleeve 182, the pin 183, and the extrusion cap 186 are the same as those of the stator core 1, and the upper core-penetrating sleeve 181, the lower core-penetrating sleeve 182, and the pin 183 fill the first stacking through hole 14 or the second stacking through hole 15, and a thread is provided at the end of the pin 183, and the thread is placed on the outside of the laminate winding part 12 or the laminate outer ring part 13. The extrusion cap 186 is attached to the outside of the laminate winding part 12 or the laminate outer ring part 13, and the first connecting nut 184 and the second connecting nut 185 are used for extrusion, so that the laminations of the stator core 1 are in close contact. The upper core-penetrating sleeve 181 and the lower core-penetrating sleeve 182 can also be used as positioning supports when the laminations of the stator core are stacked.

[0049] In this embodiment, the upper core-penetrating sleeve 181 is sleeved and connected with the lower core-penetrating sleeve 182, an upper sleeve 1811 is provided on the lower side of the upper core-penetrating sleeve 181, and a lower sleeve 1821 is provided on the upper side of the lower core-penetrating sleeve 182. The upper sleeve 1811 is sleeved on the lower sleeve 1821, or the lower sleeve 1821 is sleeved on the upper sleeve 1811.

[0050] After the stator core 1 is assembled, the coil frame 2 is cast in one piece, and the coil frame 2 includes an inner frame part 21, a winding support frame part 22 and an outer frame part 23 which are formed in one piece, a through slot 24 which is sequentially arranged through the inner frame part 21, the winding support frame part 22 and the outer frame part 23, a second nut slot 28 which is respectively arranged at the upper and lower parts of the inner wall of the through slot 24, an end plate 26 which is arranged at the end of the outer frame part 23 in a one-to-one correspondence, a plurality of first nut slots 27 which are arranged on the inner side of the end plate 26, and a plurality of outlet posts 25 which are arranged on the end plate 26 in a one-to-one correspondence. Among them, the end of the through-core connection component 18 in the first overlapping through hole 14 is placed in the second nut slot 28, and the end of the through-core connection component 18 in the second overlapping through hole 15 is placed in the first nut slot 27. The first nut slot 27 and the second nut slot 28 are in the shape of inner hexagon, which effectively prevents the first connection nut 184 and the second connection nut 185 from rotating during use. In addition, in order to ensure the supporting reliability of the stator core 1, the inner side of the inner skeleton part 21 is squeezed on the outer side of the laminate inner ring part 11, the laminate winding part 12 is sleeved in the through slot 24, and the outer side of the outer skeleton part 23 is squeezed on the inner side of the laminate outer ring part 13.

[0051] When the stator core coil frame of the block is assembled, the assembly connector 16 is inserted into the assembly connection slot 17. Since the stator core is stacked in a lamination manner, at the connection between the assembly connector 16 and the assembly connection slot 17, the assembly connector 16 of the top or bottom several or one stator lamination may be tilted or the gap between the upper and lower adjacent laminations may become larger. Therefore, a block connection pressing wedge groove 251 is provided between the outlet posts 25 of the coil frame 2, and a block connection pressing block 29 is sleeved in the block connection pressing wedge groove 251. The block connection pressing block 29 is pressed on the assembly connector 16 and the assembly connection slot 17, and squeezes the adjacent coil frame 2. In this way, it can ensure that the adjacent coil frame 2 is fixed reliably, and the assembly connectors 16 at the top and bottom are reliably pressed and fitted, reducing the magnetic circuit loss caused by the air gap. Furthermore, the block connection pressure block 29 of this embodiment includes an integrally formed wedge block portion 291 and an extruded arc portion 292, the inner side of the extruded arc portion 292 is fitted to the outer side of the lead-out column 25 of the adjacent coil skeleton 2, and the lower part is extruded on the assembly connection head 16 and the assembly connection groove 17.

[0052] The above embodiments are only preferred embodiments of the present utility model and are not intended to limit the protection scope of the present utility model. Any changes that adopt the design principles of the present utility model and are made through non-creative labor on this basis should fall within the protection scope of the present utility model.

Claims

1. A block stator core coil frame, characterized in that: The invention comprises a plurality of block assemblies arranged in an annular pattern and connected end to end in sequence; any of the block assemblies comprises a stacked stator core (1) and a coil frame (2) sleeved on the stator core (1); the stator core (1) comprises an integrally formed lamination inner ring portion (11), a lamination winding portion (12) and a lamination outer ring portion (13), a first stacked through hole (14) provided on the lamination winding portion (12), a plurality of second stacked through holes (15) provided on the lamination outer ring portion (13), an assembly connector (16) provided on one side of the lamination outer ring portion (13), an assembly connection groove (17) provided on the other side of the lamination outer ring portion (13), and a core-through connection assembly (18) disposed in the first stacked through hole (14) and the second stacked through hole (15); The coil frame (2) comprises an integrally formed inner frame portion (21), a winding support frame portion (22) and an outer frame portion (23), a through slot (24) which passes through the inner frame portion (21), the winding support frame portion (22) and the outer frame portion (23) in sequence, a second nut slot (28) which is respectively provided at the upper and lower parts of the inner wall of the through slot (24), an end plate (26) which is provided at the end of the outer frame portion (23) in a one-to-one correspondence, a plurality of first nut slots (27) which are provided on the inner side of the end plate (26), and a plurality of second nut slots (28) which are provided in a one-to-one correspondence. A plurality of outlet posts (25) are provided on the end plate (26); the end of the through-core connection component (18) in the first stacked through-hole (14) is placed in the second nut groove (28); the end of the through-core connection component (18) in the second stacked through-hole (15) is placed in the first nut groove (27); the inner side of the inner skeleton portion (21) is pressed against the outer side of the inner ring portion (11) of the laminate; the laminated winding portion (12) is sleeved in the through-groove (24); the outer side of the outer skeleton portion (23) is pressed against the inner side of the outer ring portion (13) of the laminate.

2. The block stator core coil frame according to claim 1, characterized in that: The core-penetrating connection assembly (18) comprises an upper core-penetrating sleeve (181) and a lower core-penetrating sleeve (182) sleeved in the first stacking through hole (14) or the second stacking through hole (15), a pin (183) sleeved in the upper core-penetrating sleeve (181) and the lower core-penetrating sleeve (182), a first connecting nut (184) arranged at one end of the pin (183), a second connecting nut (185) arranged at the other end of the pin (183), and a pressing cap (186) respectively arranged on the outer side of the upper core-penetrating sleeve (181) and the lower core-penetrating sleeve (182); the pressing cap (186) is attached to the outer side of the laminate winding portion (12) or the laminate outer ring portion (13); the upper core-penetrating sleeve (181) and the lower core-penetrating sleeve (183) are provided in a plurality of ways. The tube (182) is in close contact with the inner wall of the first stacked through hole (14) or the second stacked through hole (15); the pin (183) is in close contact with the inner walls of the upper core-penetrating sleeve (181) and the lower core-penetrating sleeve (182); the end of the pin (183) is provided with a thread; the thread is placed on the outside of the laminate winding portion (12) or the laminate outer ring portion (13); the first connecting nut (184) and the second connecting nut (185) are squeezed on the outside of the squeezing cap (186); the upper core-penetrating sleeve (181) and the lower core-penetrating sleeve (182) are sleeved and connected; the upper core-penetrating sleeve (181), the lower core-penetrating sleeve (182), the squeezing cap (186), the pin (183) and the stator core (1) are made of the same material.

3. The block stator core coil frame according to claim 2, characterized in that: An upper sleeve (1811) is arranged on the lower side of the upper core-penetrating sleeve (181), and a lower sleeve (1821) is arranged on the upper side of the lower core-penetrating sleeve (182); the upper sleeve (1811) is sleeved on the lower sleeve (1821).

4. The block stator core coil frame according to claim 2, characterized in that: An upper sleeve (1811) is arranged on the lower side of the upper core-penetrating sleeve (181), and a lower sleeve (1821) is arranged on the upper side of the lower core-penetrating sleeve (182); the lower sleeve (1821) is sleeved on the upper sleeve (1811).

5. The block stator core coil frame according to claim 1, characterized in that: The first nut groove (27) and the second nut groove (28) are in the shape of internal hexagons.

6. The block stator core coil frame according to claim 1, characterized in that: The assembling connection head (16) and the assembling connection groove (17) are one of circular, dovetail-shaped and trapezoidal.

7. The block stator core coil frame according to claim 1, characterized in that: A block connection pressing wedge groove (251) is provided between the outlet poles (25) of adjacent coil skeletons (2); a block connection pressing block (29) is sleeved in the block connection pressing wedge groove (251); the block connection pressing block (29) is pressed on the assembly connection head (16) and the assembly connection groove (17), and squeezes the adjacent coil skeletons (2).

8. The block stator core coil frame according to claim 7, characterized in that: The block connection pressing block (29) comprises an integrally formed wedge block portion (291) and an extruded arc portion (292); the inner side of the extruded arc portion (292) is fitted onto the outer side of the lead-out column (25) of the adjacent coil skeleton (2), and the lower part of the extruded arc portion (292) is extruded onto the assembly connection head (16) and the assembly connection groove (17).

9. A vacuum servo motor, characterized in that: A block stator core coil frame according to any one of claims 1 to 8 is provided.

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