CN218678607U - Wiring terminal assembly for stator winding, motor and power device - Google Patents

Abstract

The application provides a binding post subassembly, motor and power device for stator winding, the binding post subassembly includes skeleton and a plurality of binding post. The framework is used for connecting the stator, and a plurality of wire channels are formed in the inner peripheral wall surface of the framework. A plurality of binding post intervals arrange in the skeleton, and it is a plurality of binding post is with a plurality of wire casing way one-to-one, binding post is used for connecting corresponding stator winding's coil. The wiring terminal assembly not only can shorten the wiring distance between the stator windings, but also can enable the wiring between the stator windings to be tidier.

Description

Wiring terminal assembly for stator winding, motor and power device

Technical Field

The application relates to the technical field of motors, in particular to a wiring terminal component for a stator winding, a motor and a power device.

Background

An electric machine (e.g., a generator and a motor) refers to a device capable of converting mechanical power to electric power or vice versa, and thus, an electric machine can be used for power generation, transmission, and distribution to deliver power to industry, commerce, and residences.

At present, a motor generally has a plurality of stator teeth, a winding slot is formed between adjacent stator teeth, a coil is wound on the stator teeth to form a winding, and the winding can be connected in series and parallel to change the output power of the motor. When the coil is electrified, the generated magnetic field drives the rotor to rotate, so that power is output.

However, in the related art, series-parallel connection between windings in the motor may cause the wiring to be too long and messy.

SUMMERY OF THE UTILITY MODEL

The application provides a binding post subassembly, motor and power device for stator winding, and this binding post subassembly not only can shorten the line distance of walking between the stator winding, but also can make crossing between the stator winding more clean and tidy.

In a first aspect, the present application provides a terminal assembly for a stator winding, the terminal assembly including a bobbin and a plurality of terminals. The framework is used for connecting the stator, and a plurality of wire channels are formed in the inner peripheral wall surface of the framework. A plurality of binding post intervals arrange in the skeleton, and it is a plurality of binding post is with a plurality of wire casing way one-to-one, binding post is used for connecting corresponding stator winding's coil.

In the terminal subassembly that this application embodiment provided, a plurality of line channels have been seted up to the inner peripheral wall face of skeleton, and this line channel can help guiding stator winding's coil and the binding post that corresponds to be connected, can shorten the line distance of walking between the series-parallel connection between the stator winding like this, still can help making between the stator winding series-parallel connection cross the line neater.

According to any one of the foregoing embodiments of the first aspect of the present application, the plurality of connection terminals are arranged at equal intervals in the circumferential direction of the frame.

According to any one of the preceding embodiments of the first aspect of the present application, the lengths of the portions of the connection terminals in the radial direction of the bobbin are not equal.

According to any preceding embodiment of the first aspect of the present application, the terminal comprises:

the first connecting terminal is used for connecting a coil of the stator winding, which is far away from the framework;

second binding post is located adjacent two between the first binding post, be used for connecting being close to of stator winding the coil of skeleton, just first binding post is followed the length of the radial direction of skeleton is less than second binding post follows the length of the radial direction of skeleton.

According to any preceding embodiment of the first aspect of the present application, the first connection terminal comprises: the wiring device comprises two first wiring posts and a first connecting plate connected between the two first wiring posts, wherein the first wiring posts are provided with first wiring holes, and the first wiring holes are provided with first openings along the connecting direction of the two first wiring posts;

the second connection terminal includes: two second terminal posts and connect in two the second connecting plate between the second terminal post, the second terminal post has second wiring hole, just the second wiring hole has along two the second opening of the direction of connection of second terminal post.

According to any one of the preceding embodiments of the first aspect of the present application, the first connecting plate has a plurality of first fixing holes, and the plurality of first fixing holes penetrate through the first connecting plate in the thickness direction of the first connecting plate and are distributed at intervals;

the second connecting plate is provided with a plurality of second fixing holes, and the second fixing holes penetrate through the second connecting plate along the thickness direction of the second connecting plate and are distributed at intervals.

According to any preceding embodiment of the first aspect of the present application, the skeleton comprises:

the framework body is of an annular structure, and the inner peripheral wall surface of the framework body is provided with a plurality of wire channels;

the fixed part is followed the inner peripheral wall face protrusion of skeleton body, and is a plurality of binding post interval arrange in the fixed part and with a plurality of wire casing way one-to-one.

According to any one of the embodiments of the first aspect of the present application, the frame further includes a positioning portion, and the positioning portion is disposed on an edge of the fixing portion away from the frame body.

In a second aspect, the present application provides an electrical machine comprising a terminal assembly as described in any of the previous embodiments of the first aspect of the present application.

In a third aspect, embodiments of the present application provide a power plant comprising the motor of any of the preceding embodiments of the second aspect of the present application.

The foregoing description is only an overview of the technical solutions of the present application, and the present application can be implemented according to the content of the description in order to make the technical means of the present application more clearly understood, and the following detailed description of the present application is given in order to make the above and other objects, features, and advantages of the present application more clearly understandable.

Drawings

Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the application. Moreover, like reference numerals are used to refer to like elements throughout. In the drawings:

fig. 1 illustrates a schematic structural view of a terminal assembly provided in some embodiments of the present application.

Fig. 2 is a schematic structural view illustrating a plurality of terminals spaced apart from each other in the embodiment shown in fig. 1.

Fig. 3 shows an enlarged schematic view of the structure at S in fig. 2.

FIG. 4 illustrates a schematic structural view of a connection of a terminal assembly to a coil provided by some embodiments of the present application.

Fig. 5 illustrates a schematic structural diagram of a motor provided in some embodiments of the present application.

The reference numbers in the detailed description are as follows:

1000-motor;

100-a terminal assembly;

10-framework, 11-framework body, 111-linear channel, 12-fixing part and 13-positioning part;

20-connection terminal, 21-first connection terminal, 211-first connection post, 2111-first connection hole, 2112-first opening, 212-first connection plate, 2121-first fixing hole, 22-second connection terminal, 221-second connection post, 2211-second connection hole, 2212-second opening, 222-second connection plate, 2221-second fixing hole;

30-coil.

Detailed Description

Embodiments of the present invention will be described in detail below with reference to the accompanying drawings. The following examples are merely used to more clearly illustrate the technical solutions of the present application, and therefore are only examples, and the protection scope of the present application is not limited thereby.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs; the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application; the terms "including" and "having," and any variations thereof, in the description and claims of this application and the description of the above figures are intended to cover non-exclusive inclusions.

In the description of the embodiments of the present application, the technical terms "first", "second", and the like are used only for distinguishing different objects, and are not to be construed as indicating or implying relative importance or implicitly indicating the number, specific order, or primary-secondary relationship of the technical features indicated. In the description of the embodiments of the present application, "a plurality" means two or more unless specifically defined otherwise.

Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the application. The appearances of the phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. It is explicitly and implicitly understood by one skilled in the art that the embodiments described herein can be combined with other embodiments.

In the description of the embodiments of the present application, the term "and/or" is only one kind of association relationship describing an associated object, and means that three relationships may exist, for example, a and/or B, and may mean: a exists alone, A and B exist simultaneously, and B exists alone. In addition, the character "/" herein generally indicates that the former and latter related objects are in an "or" relationship.

In the description of the embodiments of the present application, the term "plurality" refers to two or more (including two), and similarly, "plural sets" refers to two or more (including two), and "plural pieces" refers to two or more (including two).

In the description of the embodiments of the present application, the terms "center", "longitudinal", "lateral", "length", "width", "wall thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations and positional relationships that are based on the orientations and positional relationships shown in the drawings, and are used only for convenience in describing the embodiments of the present application and for simplicity in description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the embodiments of the present application.

In the description of the embodiments of the present application, unless otherwise explicitly specified or limited, the terms "mounted," "connected," "fixed," and the like are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integrally formed; mechanical connection or electrical connection is also possible; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the embodiments of the present application can be understood by those of ordinary skill in the art according to specific situations.

Preferred embodiments of a terminal assembly according to the present disclosure will be described in detail below with reference to the accompanying drawings. Fig. 1 illustrates a schematic structural view of a terminal assembly provided in some embodiments of the present application. Fig. 2 is a schematic diagram illustrating a structure of the embodiment of fig. 1 in which a plurality of connection terminals are arranged at intervals. Fig. 3 shows an enlarged schematic view of the structure at S in fig. 2.

Possible embodiments within the scope of the present disclosure may have fewer components, have other components not shown in the figures, different components, differently arranged components or differently connected components, etc. than the embodiments shown in the figures. Further, two or more of the components in the drawings may be implemented in a single component, or a single component shown in the drawings may be implemented as multiple separate components, without departing from the concepts disclosed herein.

At present, a motor generally has a plurality of stator teeth, a winding slot is formed between adjacent stator teeth, a coil is wound on the stator teeth to form a winding, and the winding can be connected in series and parallel to change the output power of the motor. When the coil is electrified, the generated magnetic field drives the rotor to rotate, so that power is output. However, in the related art, series-parallel connection between windings in the motor may cause the wiring to be too long and messy.

In view of this, the present application provides a terminal assembly for stator windings, a motor and a power device, which can not only shorten the routing distance between the stator windings, but also make the passing of wires between the stator windings neater.

Terminal assembly

Referring to fig. 1, fig. 1 is a schematic structural view illustrating a terminal assembly according to some embodiments of the present disclosure.

The embodiment of the application provides a terminal assembly 100 for a stator winding, wherein the terminal assembly 100 comprises a framework 10 and a plurality of terminals 20. The bobbin 10 is used to connect a stator, and a plurality of wire grooves 111 are formed on an inner circumferential wall surface of the bobbin 10. The plurality of connection terminals 20 are arranged on the frame 10 at intervals, the plurality of connection terminals 20 correspond to the plurality of wire slots 111 one by one, and the connection terminals 20 are used for connecting corresponding coils of the stator winding.

In this application, when skeleton 10 can provide the supporting role to a plurality of binding post 20, can also keep apart adjacent binding post 20 in a plurality of binding post 20, play the effect of electrical insulation.

The plurality of terminals 20 are arranged on the frame 10 at intervals, which can help to make the current density in the motor in a proper range, so as to reduce the occurrence of burning loss of the motor caused by excessive current density. In addition, the intervals between the adjacent connection terminals 20 may be equal or may not be equal as long as the current density in the motor can be made within a suitable range. And, can carry out series-parallel connection according to the demand of different operating modes between a plurality of binding post 20 to form series-parallel connection between the stator winding in can making the motor, with the demand that satisfies different operating modes. For example, when connected in series, a high voltage can be output; when connected in parallel, the current can be increased.

In the connection terminal assembly 100 provided in the embodiment of the present application, the inner peripheral wall surface of the frame 10 is provided with a plurality of wire channels 111, and the wire channels 111 can help to guide the coils of the stator windings to be connected with the corresponding connection terminals 20, so that the wiring distance between the series and parallel connections between the stator windings can be shortened, and the connection of the series and parallel connections between the stator windings can be neater.

Referring to fig. 1, in some embodiments of the present disclosure, the frame 10 includes a frame body 11 and a fixing portion 12, wherein the frame body 11 has an annular structure, and an inner peripheral wall surface of the frame body 11 is provided with a plurality of wire channels 111. The fixing portion 12 protrudes along the inner peripheral wall surface of the frame body 11, and the plurality of connection terminals 20 are arranged at intervals on the fixing portion 12 and correspond to the plurality of wire channels 111 one by one.

In some examples, the frame body 11 and the fixing portion 12 may be injection molded parts, and the injection molded parts may be integrally injection molded with the plurality of terminals 20.

In addition, the edge of the fixing portion 12 away from the frame body 11 is provided with a positioning portion 13, and the connection of the terminal assembly 100 to other assemblies or components can be facilitated by the positioning portion 13.

Referring to fig. 2, fig. 2 is a schematic structural diagram illustrating a plurality of terminals spaced apart from each other in the embodiment shown in fig. 1.

As shown in fig. 2, in some embodiments of the present application, the plurality of connection terminals 20 are arranged at equal intervals in the circumferential direction of the bobbin 10.

In the present application, the circumferential direction refers to a circumferential direction around the axis of the bobbin 10.

In the embodiments, the plurality of terminals 20 are arranged at equal intervals along the circumferential direction of the frame 10, so that the current density distribution in the motor can be further uniform, and the occurrence of burning loss of the motor due to excessive current density in a partial region can be reduced. The distance between adjacent terminals 20 may be designed according to the number of slots of the motor, the number of stator windings, and other practical applications, and the embodiments of the present invention are not limited in this respect.

Further, in some embodiments of the present application, the plurality of connection terminals 20 may be disposed at an outer edge or an inner edge of the bobbin 10.

In the present application, the outer edge refers to an edge away from the central axis of the skeleton 10, and the inner edge refers to an edge close to the central axis of the skeleton 10.

In some embodiments of the present application, the lengths of the portions of the connection terminals 20 in the radial direction of the bobbin 10 are not equal.

In the present application, the radial direction refers to a direction perpendicular to the central axis of the bobbin 10.

In the above embodiments, the lengths of the parts of the connection terminals 20 in the radial direction of the bobbin 10 are not equal, which contributes to saving materials and reducing the manufacturing cost of the motor. Moreover, the terminals 20 with different lengths can play a guiding role, that is, the terminals 20 with corresponding lengths are arranged according to coils of different phases or poles, so that the electrical connection between the stator winding and the terminals 20 can be facilitated.

In the present application, the stator windings of the stator in the electrical machine are distributed according to a certain sequence, so that in order to further shorten the distance of the wire passing, and save materials, in some embodiments of the present application, a terminal 20 different from the length of two adjacent terminals 20 of the same length is disposed between them.

Referring to fig. 3, fig. 3 is a schematic diagram illustrating an enlarged structure at S in fig. 2.

As shown in fig. 3, in some embodiments of the present application, the connection terminal 20 includes a first connection terminal 21 and a second connection terminal 22, wherein the first connection terminal 21 is used to connect the coil of the stator winding away from the bobbin 10. The second connection terminal 22 is located between two adjacent first connection terminals 21, and is used for connecting a coil of the stator winding, which is close to the bobbin 10, and the length of the first connection terminal 21 in the radial direction of the bobbin 10 is smaller than the length of the second connection terminal 22 in the radial direction of the bobbin 10.

In the embodiments, the first connection terminal 21 and the second connection terminal 22 are provided to make the coil routing of the stator winding in the motor cleaner.

In some embodiments of the present application, the first connection terminal 21 includes two first posts 211 and a first connection plate 212 connected between the two first posts 211, the first posts 211 have first wiring holes 2111, and the first wiring holes 2111 have first openings 2112 in a connection direction of the two first posts 211.

In these embodiments, one of the two first terminals 211 may be used for grounding, and the other may be used for connecting a bus bar assembly. Further, the first wiring hole 2111 provided in the first terminal post 211 can function as a positioning connection.

In some embodiments of the present application, the second connection terminal 22 includes two second terminals 221 and a second connection plate 222 connected between the two second terminals 221, the second terminal 221 has a second connection hole 2211, and the second connection hole 2221 has a second opening 2212 in a connection direction of the two second terminals 222.

As shown in fig. 4, in the above embodiments, one of the two second terminals 221 may be used to connect the coil 30, and the other may be used to connect the bus bar assembly. Moreover, the second wiring hole 2211 provided on the second post 221 can play a role of positioning connection.

In some embodiments of the present application, the first connection plate 212 has a plurality of first fixing holes 2121, and the plurality of first fixing holes 2121 are distributed at intervals through the first connection plate 212 in a thickness direction of the first connection plate 212. The second connection plate 222 has a plurality of second fixing holes 2221, and the plurality of second fixing holes 2221 penetrate the second connection plate 222 in the thickness direction of the second connection plate 222 and are spaced apart from each other.

In the present application, the thickness direction refers to a direction directed from one of two opposite main surfaces of the first connecting plate 212 or the second connecting plate 222 to the other.

In the above embodiments, the first fixing hole 2121 and the second fixing hole 2221 may be configured to fix the first terminal 21 and the second terminal 22, that is, in some examples, when the first terminal 21 and the second terminal 22 are formed by injection molding with the frame 10, the first fixing hole 2121 and the second fixing hole 2221 may reduce movement of the first terminal 21 and the second terminal 22.

Electric machine

Referring to fig. 5, fig. 5 is a schematic structural diagram of a motor according to some embodiments of the present disclosure.

As shown in fig. 5, the present application provides a motor 1000 including the terminal assembly of any of the above embodiments. Since the motor of the present application includes the terminal assembly in the above embodiments, the motor also has the technical effects of the terminal assembly, and the embodiments of the present application are not described herein again.

Power plant

The application provides a power device, which comprises the motor in any one of the above embodiments.

In embodiments of the present application, the power plant may be a vehicle, an aerospace vehicle, a marine vehicle, an air vehicle, or the like.

Finally, it should be noted that: the above embodiments are only used for illustrating the technical solutions of the present application, and not for limiting the same; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; these modifications and substitutions do not depart from the spirit of the embodiments of the present application, and they should be construed as being included in the scope of the claims and description of the present application. In particular, the technical features mentioned in the embodiments can be combined in any way as long as there is no structural conflict. The present application is not intended to be limited to the particular embodiments disclosed herein but is to cover all embodiments that may fall within the scope of the appended claims.

Claims (10)

1. A terminal assembly for a stator winding, said terminal assembly comprising:

the framework is used for connecting the stator, and a plurality of wire channels are formed in the inner peripheral wall surface of the framework;

and the wiring terminals are arranged on the framework at intervals and are in one-to-one correspondence with the wire channels, and the wiring terminals are used for connecting corresponding coils of the stator winding.

2. The terminal assembly of claim 1, wherein the plurality of terminals are equally spaced along a circumferential direction of the frame.

3. The terminal assembly of claim 2, wherein portions of the terminal are unequal in length along a radial direction of the backbone.

4. The terminal assembly of claim 3, wherein said terminal includes:

the first connecting terminal is used for connecting a coil of the stator winding, which is far away from the framework;

second binding post is located adjacent two between the first binding post, be used for connecting being close to of stator winding the coil of skeleton, just first binding post is followed the length of the radial direction of skeleton is less than second binding post follows the length of the radial direction of skeleton.

5. The terminal assembly of claim 4, wherein said first terminal includes: the first connecting plate is connected between the two first connecting posts, the first connecting posts are provided with first connecting holes, and the first connecting holes are provided with first openings along the connecting direction of the two first connecting posts;

the second connection terminal includes: two second terminal posts and connect in two the second connecting plate between the second terminal post, the second terminal post has second wiring hole, just the second wiring hole has along two the second opening of the direction of connection of second terminal post.

6. The terminal assembly of claim 5, wherein said first connecting plate has a plurality of first fixing holes extending therethrough in a thickness direction of said first connecting plate and spaced apart therefrom;

the second connecting plate is provided with a plurality of second fixing holes, and the second fixing holes penetrate through the second connecting plate along the thickness direction of the second connecting plate and are distributed at intervals.

7. The terminal assembly of claim 1, wherein the backbone includes:

the framework body is of an annular structure, and the inner peripheral wall surface of the framework body is provided with a plurality of wire channels;

the fixing part is along the inner peripheral wall surface of the framework body is convex, and the wiring terminals are arranged on the fixing part at intervals and are in one-to-one correspondence with the wiring channels.

8. The terminal assembly of claim 7, wherein said backbone further comprises: and the positioning part is arranged at the edge of the fixed part far away from the framework body.

9. An electrical machine comprising a terminal assembly according to any one of claims 1 to 8.

10. A power plant comprising an electric machine as claimed in claim 9.

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