CN217427813U - Armature assembly and starter - Google Patents

Abstract

The utility model provides a pair of armature assembly and starter relates to starter overload protection technical field to optimize armature assembly structure to a certain extent, guarantee the uniformity of starter overload failure mode. The utility model provides an armature assembly, which comprises an iron core, an armature winding and a butt joint piece; the armature winding is wound on the iron core, a first accommodating space and a second accommodating space are respectively formed at two ends of the iron core in an enclosing mode, and the abutting pieces are arranged in the first accommodating space and/or the second accommodating space and are abutted to the armature winding.

Description

Armature assembly and starter

Technical Field

The utility model belongs to the technical field of starter overload protection technique and specifically relates to an armature assembly and starter are related to.

Background

The overload protection of the starter is to break the circuit of the starter, which is mainly realized by fusing the fusing rod of the brush holder, and the fusing of the fusing rod needs the generation of large current, which is caused by the short circuit of the internal circuit of the starter.

However, the existing starter has inconsistent failure modes when overloaded and the failure point can not be determined artificially, so that the product risk is higher, when the overload current of the starter is lower, the speed of the armature generating heat is lower than the speed of dissipating heat, so that the short circuit is not easy to occur, the starter runs for a long time and has ablation risk, and the short circuit is difficult to realize by the existing armature winding protected by insulating paint.

Therefore, it is desirable to provide an armature assembly and a starter to solve the problems of the prior art to some extent.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an armature assembly and starter to optimize armature assembly structure to a certain extent, guarantee the uniformity of starter overload failure mode.

The utility model provides an armature assembly, which comprises an iron core, an armature winding and a butting piece; the armature winding is wound on the iron core, two ends of the iron core are respectively enclosed into a first accommodating space and a second accommodating space, and the abutting part is arranged in the first accommodating space and/or the second accommodating space and abutted against the armature winding.

Wherein, the utility model provides an armature assembly still includes commutator and solid fixed ring, gu fixed ring tie in armature winding's the outside, the commutator passes through gu fixed ring with armature winding is connected, just the commutator is located the formation one side of first accommodation space.

Specifically, the utility model provides an armature assembly still includes the armature shaft, the armature shaft the commutator with unshakable in one's determination all with the armature shaft is connected, just the axis of armature shaft with the axis of commutator with unshakable in one's determination's axis collineation.

Further, the abutting part is of a closed ring-shaped structure, and the abutting part of the closed ring-shaped structure is placed into the first accommodating space and/or the second accommodating space before the twisting of the armature winding is performed.

The abutting part is of a non-closed annular structure, and the abutting part of the non-closed annular structure is placed into the first accommodating space and/or the second accommodating space after the armature winding is twisted.

Specifically, the first accommodating space is of a circular truncated cone structure, and the outer diameter of the abutting piece is the same as the maximum diameter of the first accommodating space; the second accommodation space is of a cylindrical groove structure, and the outer diameter of the abutting part is the same as that of the second accommodation space.

Further, the abutment is made of a metallic conductive material.

Furthermore, the iron core comprises a plurality of iron core sheets stacked in sequence, the iron core sheets comprise a plurality of accommodating grooves which are formed along the circumferential direction of the iron core sheets and have openings, and the armature winding is arranged in the accommodating grooves.

Compared with the prior art, the utility model provides an armature assembly has following advantage:

the utility model provides an armature assembly, which comprises an iron core, an armature winding and a butt joint piece; the armature winding is wound on the iron core, a first accommodating space and a second accommodating space are respectively formed at two ends of the iron core in an enclosing mode, and the abutting pieces are arranged in the first accommodating space and/or the second accommodating space and are abutted to the armature winding.

From this analysis, it is found that the armature winding wound around the core rotates following the core because the core rotates during the operation of the motor. First accommodation space and second accommodation space that forms respectively at iron core both ends through armature winding just set up the butt piece in first accommodation space and/or second accommodation space, when the iron core drives armature winding and rotates, can drive the butt piece and produce the rotation.

Because the abutting pieces are abutted to the armature windings in the first accommodating space and the second accommodating space, the rotation of the abutting pieces can generate centrifugal force, and the centrifugal force can increase the pressure of the abutting pieces on the armature windings.

When the starter overload failure mode is overloaded for a long time, the temperature of the iron core can be gradually increased, and the armature winding subjected to the pressure of the abutting part is in closer contact with the iron core, so that the armature winding is easier to fuse, the fusing point of the armature assembly can be ensured to be positioned at the position provided with the abutting part, and the consistency of the overload failure mode of the starter can be further ensured to a certain extent.

In addition, the utility model also provides a starter, including the motor, the motor uses foretell armature assembly, still includes battery, switch, coil pack, actuation subassembly, first contact jaw, second contact jaw and fusing rod; the positive electrode of the storage battery is respectively contacted with the first contact end at one end of the switch, and the other end of the switch is connected with the coil assembly; the attraction component comprises an attraction component and a fitting piece, the coil component is wound on the fitting piece, and the fitting piece can move relative to the coil component so that the attraction component moves towards the direction close to the first contact end and the second contact end; the second contact end is connected with the second contact end and one end of the fusing rod respectively, and the other end of the fusing rod is connected with the motor.

The coil assembly comprises a holding coil and a pull-in coil, one end of the switch, which is far away from the storage battery, is respectively connected with one end of the holding coil and one end of the pull-in coil, the other end of the holding coil is grounded, and the other end of the pull-in coil is connected with the second contact end.

The utility model provides a when starter used, the switch is closed, and the electric current of battery passes through the switch and gets into coil pack, because the piece of combining is not produced the contact with first contact jaw and second contact jaw at this stage to inhale, consequently, the electric current passes through coil pack by second contact jaw flow direction fusing pole to be the motor circular telegram through fusing the pole.

With continuous energization, the coil assembly wound on the fitting piece can drive the fitting piece to move, so that the suction piece can move towards the direction close to the first contact end and the second contact end, and finally, two ends of the suction piece are respectively contacted with the first contact end and the second contact end.

When the starter is overloaded continuously, the armature winding generates short circuit, so that the motor fails, the current passing through the fusing rod does not pass through the motor any more, the resistance in the whole circuit is extremely low, the current is increased, and the fusing rod is fused by large current to protect the starter.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the prior art descriptions will be briefly described below, it is obvious that the drawings in the following descriptions are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

Fig. 1 is a schematic diagram of an armature assembly according to an embodiment of the present invention at a first viewing angle;

fig. 2 is a schematic structural diagram of a core plate in an armature assembly according to an embodiment of the present invention;

fig. 3 is an electrical schematic diagram of a starter provided by an embodiment of the present invention.

In the figure: 1-an iron core; 101-core sheet; 1011-accommodating tank; 2-an armature winding; 201-a first accommodation space; 202-a second accommodation space; 3-an abutment; 4-a commutator; 5-an armature shaft; 6, fixing a ring; 7-a motor; 8-a storage battery; 9-a switch; 10-a first contact end; 11-a second contact end; 12-a suction element; 13-a counterpart; 14-a holding coil; 15-pull coil; 16-fuse rod.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all the embodiments. The components of the embodiments of the present application, generally described and illustrated in the figures herein, can be arranged and designed in a wide variety of different configurations. Thus, the following detailed description of the embodiments of the present application, presented in the accompanying drawings, is not intended to limit the scope of the claimed application, but is merely representative of selected embodiments of the application. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present application without making any creative effort, shall fall within the protection scope of the present application.

In the description of the embodiments of the present application, it should be noted that the terms "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, or orientations or positional relationships that are conventionally placed when the products of the present invention are used, and are only used for convenience of description and simplification of the description, but do not indicate or imply that the devices or elements indicated must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.

Furthermore, the terms "horizontal", "vertical" and the like do not imply that the components are required to be absolutely horizontal or pendant, but rather may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.

In the description of the embodiments of the present application, it should also be noted that, unless otherwise explicitly stated or limited, the terms "disposed," "mounted," "communicated," and "connected" are to be construed broadly, e.g., as being fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood as a specific case by those skilled in the art.

As used herein, the term "and/or" includes any one of the associated listed items and any combination of any two or more of the items.

For ease of description, spatial relationship terms such as "above … …," "upper," "below … …," and "lower" may be used herein to describe one element's relationship to another element as illustrated in the figures. Such spatial relationship terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures.

The terminology used herein is for the purpose of describing various examples only and is not intended to be limiting of the disclosure. The singular forms also are intended to include the plural forms as well, unless the context clearly indicates otherwise. The terms "comprises," "comprising," and "having" specify the presence of stated features, quantities, operations, elements, components, and/or combinations thereof, but do not preclude the presence or addition of one or more other features, quantities, operations, components, elements, and/or combinations thereof.

Variations from the shapes of the illustrations as a result, for example, of manufacturing techniques and/or tolerances, may be expected. Thus, the examples described herein are not limited to the particular shapes shown in the drawings, but include changes in shape that occur during manufacturing.

The features of the examples described herein may be combined in various ways that will be apparent after understanding the disclosure of the present application. Further, while the examples described herein have a variety of configurations, other configurations are possible, as will be apparent after understanding the disclosure of the present application. In addition, technical solutions between the embodiments may be combined with each other, but must be based on the realization of the technical solutions by a person skilled in the art, and when the technical solutions are contradictory to each other or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope claimed in the present application.

As shown in fig. 1, the present invention provides an armature assembly, which includes an iron core 1, an armature winding 2, and an abutting member 3; the armature winding 2 is wound on the iron core 1, and a first accommodating space 201 and a second accommodating space 202 are respectively enclosed at two ends of the iron core 1, and the abutting piece 3 is arranged in the first accommodating space 201 and/or the second accommodating space 202 and abutted against the armature winding 2.

Compared with the prior art, the utility model provides an armature assembly has following advantage:

since the core 1 is rotated during the operation of the motor 7, the armature winding 2 wound around the core 1 is rotated following the core 1. First accommodation space 201 and second accommodation space 202 that forms respectively at iron core 1 both ends through armature winding 2, and set up butt 3 in first accommodation space 201 and/or second accommodation space 202, when iron core 1 drives armature winding 2 and rotates, can drive butt 3 and produce the rotation.

In the present application, the abutting member 3 abuts against the armature winding 2 in both the first accommodating space 201 and the second accommodating space 202, and the rotation of the abutting member 3 generates a centrifugal force, and the centrifugal force increases the pressure of the abutting member 3 on the armature winding 2.

When overload operation is carried out for a long time, the temperature of the iron core 1 can be gradually increased, and the armature winding 2 pressed by the abutting part 3 is more tightly contacted with the iron core 1, so that the armature winding is easier to fuse, the fusing point of the armature assembly can be ensured to be positioned at the position provided with the abutting part 3, and the consistency of the overload failure mode of the starter can be ensured to a certain extent.

It should be added here that the abutment member 3 in the present application may be disposed in the first accommodating space 201, may be disposed in the second accommodating space 202, and may further be disposed with two abutment members 3 respectively located in the first accommodating space 201 and the second accommodating space 202. Moreover, in order to ensure that the abutting piece 3 can smoothly short the armature winding 2 at the corresponding position, preferably, the abutting piece 3 in the present application is made of a conductive metal material and has a certain elasticity, so that when the abutting piece 3 rotates along with the iron core 1, pressure can be better applied to the armature winding 2, and then stable fusing of the armature winding 2 under long-time overload can be ensured.

It is understood that the fusing of the armature winding 2 is actually the melting of the insulating sheath wrapping the armature winding 2, and the inner copper wire is exposed and contacted with the iron core 1 or the abutting ring after the insulating sheath is melted, so that a short circuit can be generated at the corresponding position.

Wherein, as shown in fig. 1, the utility model provides an armature assembly still includes commutator 4 and solid fixed ring 6, and solid fixed ring 6 ties up in armature winding 2's the outside, and commutator 4 is connected with armature winding 2 through solid fixed ring 6, and commutator 4 is located the one side that forms first accommodation space 201.

The armature winding 2 can be more closely and regularly arranged through the fixing ring 6, and the connection with the commutator 4 is more stable. Since the commutator 4 is disposed on one side of the iron core 1, as shown in fig. 1, the first accommodating space 201 in the present application has a truncated cone shape, and the outer diameter of the abutting piece 3 is the same as the maximum diameter of the first accommodating space 201; the second receiving space 202 is a cylindrical groove-shaped structure and the outer diameter of the abutment 3 is the same as the diameter of the second receiving space 202.

Through making the external diameter of butt piece 3 the same with the maximum diameter of first accommodation space 201, and preferably, first accommodation space 201 in this application is round platform type structure, consequently, can carry on spacingly to butt piece 3, make butt piece 3 only can follow iron core 1 rotation in first accommodation space 201, avoid butt piece 3 to produce the problem along axial float to a certain extent to guaranteed whole armature assembly pivoted stability, avoided producing the shake.

As shown in fig. 1, the second receiving space 202 in this application is a cylindrical slot structure, that is, the side of the second receiving space 202 away from the core 1 is an open side, and the abutting piece 3 is disposed in the second receiving space 202 and can also abut against the armature winding 2, and increases the pressure on the armature winding 2 when rotating, thereby realizing a short circuit of the armature winding 2 under a long-time overload.

Since the twisting operation is required after the armature winding 2 is wound and connected with the iron core 1, when the abutting member 3 in the present application has a closed ring structure, the deformation degree of the abutting member 3 is small, and therefore, the abutting member 3 needs to be placed in the first accommodating space 201 or the second accommodating space before the twisting operation, and then the twisting process is performed.

When the abutting member 3 provided by the present application adopts a non-closed ring structure, since the abutting member 3 has an open portion, the deformation amount of the abutting member 3 is relatively large, and thus the abutting member can be placed into the first accommodating space 201 or the second accommodating space 202 before the twisting process, and can also be placed into the first accommodating space 201 or the second accommodating space 202 after the twisting process.

As shown in fig. 1, it can be understood that the present invention provides an armature assembly further comprising an armature shaft 5, wherein the armature shaft 5, the commutator 4 and the iron core 1 are all connected to the armature shaft 5, and the axis of the armature shaft 5 is collinear with the axis of the commutator 4 and the axis of the iron core 1.

In this application, one end of armature shaft 5 is located commutator 4, and the other end passes through iron core 1 and protrudes out of iron core 1, and rotation of armature shaft 5 can drive iron core 1 to rotate, thereby drives butt piece 3 to rotate.

Preferably, as shown in fig. 1 and fig. 2, the iron core 1 in the present application includes a plurality of core segments 101 stacked in sequence, each of the plurality of core segments 101 includes a plurality of receiving grooves 1011 opened along a circumferential direction of the core segment 101 and having an opening, and the armature winding 2 is disposed in the receiving grooves 1011.

As shown in fig. 2, the core segment 101 provided in the present application is further provided with a center hole, and a plurality of core segments 101 are stacked to form a center through hole, so that the armature shaft 5 can pass through and be coupled to the core 1. The armature winding 2 can be stably connected to the core 1 through the formed receiving groove 1011, and a certain gap can be ensured between the core segment 101 and the armature winding 2, thereby ensuring stable operation under normal operation. When the overload is caused for a long time, the gap between the armature winding 2 and the iron core 1 can be rapidly reduced through the abutting piece 3, so that the armature winding 2 is attached to the iron core 1, and the short circuit is realized.

In addition, as shown in fig. 3, the present invention further provides a starter, which includes a motor 7, wherein the motor 7 employs the above-mentioned armature assembly, and further includes a battery 8, a switch 9, a coil assembly, an attraction assembly, a first contact end 10, a second contact end 11, and a fuse rod 16; the positive pole of the storage battery 8 is respectively contacted with the first contact end 10 at one end of the switch 9, and the other end of the switch 9 is connected with the coil assembly; the attraction component comprises an attraction component 12 and a fitting component 13, the coil component is wound on the fitting component 13, and the fitting component 13 can move relative to the coil component so that the attraction component 12 moves towards the direction close to the first contact end 10 and the second contact end 11; the second contact end 11 is connected to the second contact end 11 and one end of the fusing rod 16, and the other end of the fusing rod 16 is connected to the motor 7.

The utility model provides a when starter used, switch 9 is closed, and battery 8's electric current passes through switch 9 and gets into coil pack, because the piece 12 does not produce the contact with first contact jaw 10 and second contact jaw 11 in this stage of inhaling, consequently, the electric current passes through coil pack by 11 flow direction of second contact jaw fuse-link 16 to through fuse-link 16 for motor 7 circular telegrams.

With the continuous power supply, the coil assembly wound on the mating member 13 can drive the mating member 13 to move, so that the attraction member 12 can move towards the direction approaching to the first contact end 10 and the second contact end 11, and finally the two ends of the attraction member 12 are respectively contacted with the first contact end 10 and the second contact end 11, at this time, because the distance between the first contact end 10 and the second contact end 11 is the shortest, the current flowing out of the storage battery 8 enters the fusing rod 16 through the first contact end 10, the attraction member 12 and the second contact end 11, and supplies power to the motor 7.

When the starter is overloaded continuously, the armature winding 2 generates short circuit, so that the motor 7 fails, the current passing through the fusing rod 16 does not pass through the motor 7 any more, the resistance in the whole circuit is extremely small, the current is increased, and the fusing rod 16 is fused by obtaining large current to protect the starter.

Alternatively, as shown in fig. 3, the coil assembly includes a holding coil 14 and a pull-in coil 15, one end of the switch 9 away from the battery 8 is connected to one end of the holding coil 14 and one end of the pull-in coil 15, respectively, the other end of the holding coil 14 is grounded, and the other end of the pull-in coil 15 is connected to the second contact terminal 11.

As shown in fig. 3, by providing the pull-in coil 15, after the pull-in coil 15 and the holding coil 14 are both powered on, the engaging piece 13 can be driven to move towards the direction approaching to the first contact end 10 and the second contact end 11, so that the engaging piece 12 is contacted with the first contact end 10 and the second contact end 11, and the engaging piece 12 can be always in an engaged state with the first contact end 10 and the second contact end 11 by the holding coil 14, thereby ensuring the circuit communication of the starter as a whole.

When the switch 9 is turned off, the holding coil 14 is not electrified any more, so that the absorbing element 12 and the fitting element 13 gradually move in a direction away from the first contact end 10 and the second contact end 11 and are separated from the first contact end 10 and the second contact end 11, so that the motor 7 is powered off and stops working.

It should be added that, in general, the starter is used in starting the vehicle, and since the starter is not operated after the vehicle is started, when the vehicle is started, the switch 9 is turned off, the holding coil 14 is de-energized, and the attraction member 12 is separated from the first contact end 10 and the second contact end 11, so that the starter stops working.

The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (10)

1. An armature assembly is characterized by comprising an iron core, an armature winding and a butting component;

the armature winding is wound on the iron core, a first accommodating space and a second accommodating space are respectively formed at two ends of the iron core in an enclosing mode, and the abutting piece is arranged in the first accommodating space and/or the second accommodating space and abutted to the armature winding.

2. The armature assembly according to claim 1, further comprising a commutator and a fixing ring, the fixing ring being attached to an outer side of the armature winding, the commutator being connected to the armature winding through the fixing ring, and the commutator being located at a side where the first receiving space is formed.

3. The armature assembly of claim 2, further comprising an armature shaft, wherein the armature shaft, the commutator, and the core are all connected to the armature shaft, and wherein an axis of the armature shaft is collinear with an axis of the commutator and an axis of the core.

4. The armature assembly according to claim 1, wherein the abutting piece is of a closed ring structure, and the abutting piece of the closed ring structure is placed into the first accommodating space and/or the second accommodating space before twisting of the armature winding.

5. The armature assembly according to claim 1, wherein the abutting member is in a non-closed ring structure, and the abutting member in the non-closed ring structure is placed in the first accommodating space and/or the second accommodating space after the armature winding is twisted.

6. The armature assembly of claim 1, wherein the first receiving space is a truncated cone structure, and an outer diameter of the abutting member is the same as a maximum diameter of the first receiving space;

the second accommodation space is of a cylindrical groove structure, and the outer diameter of the abutting part is the same as that of the second accommodation space.

7. The armature assembly of claim 1, wherein the abutment member is made of a metallic conductive material.

8. The armature assembly according to claim 1, wherein the core comprises a plurality of core segments stacked in sequence, each of the plurality of core segments comprises a plurality of receiving slots having an opening formed along a circumferential direction of the core segment, and the armature winding is disposed in the receiving slots.

9. A starter comprising a motor using the armature assembly according to any one of claims 1 to 8, and further comprising a battery, a switch, a coil assembly, an attraction assembly, a first contact end, a second contact end, and a fuse link;

the positive electrode of the storage battery is respectively contacted with the first contact end at one end of the switch, and the other end of the switch is connected with the coil assembly;

the attraction component comprises an attraction component and a fitting piece, the coil component is wound on the fitting piece, and the fitting piece can move relative to the coil component so that the attraction component moves towards the direction close to the first contact end and the second contact end;

the second contact end is connected with the second contact end and one end of the fusing rod respectively, and the other end of the fusing rod is connected with the motor.

10. The starter according to claim 9, wherein the coil assembly includes a holding coil and a pull-in coil, one end of the switch remote from the battery is connected to one end of the holding coil and one end of the pull-in coil, respectively, the other end of the holding coil is grounded, and the other end of the pull-in coil is connected to the second contact end.

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