CN208835899U - Electric motor end cap and motor - Google Patents

Abstract

The utility model relates to motor field, disclosing a kind of electric motor end cap and motor, the electric motor end cap includes: first end cover, and the first end cover includes first end plate and the first annular cylinder axially extending from the neighboring of the first end plate；And second end cover, the second end cover includes the second end plate and second circular cylinder axially extending from the neighboring of second end plate, wherein, the end far from second end plate of second circular cylinder is inserted into the first annular cylinder and is interference fitted with the first annular cylinder, so that the first end cover and the second end cover form closed chamber.Electric motor end cap and motor provided by the utility model, which can make first end cover and second end cover be fitted close and can reduce number of parts, while can be improved the concentricity of first end cover and second end cover.

Description

Electric motor end cap and motor

Technical field

The utility model relates to motor fields, more particularly to a kind of electric motor end cap and motor.

Background technique

It is tight to generally use rivet between first end cover (upper end cover) and second end cover (lower cover) for current iron-shell motor Gu the number of parts for not only making electric motor end cap include in this way is more, but also there are rivets because of the vibration that generates when motor operation And loosen make first end cover and second end cover can not close-fitting risk, cause the safe application performance of product lower, in addition, The concentricity of first end cover and second end cover is lower, influences the performance of the motor using the electric motor end cap.

Accordingly, there exist designing, one kind can be such that first end cover and second end cover is fitted close and can to reduce number of parts same When can be improved first end cover and second end cover concentricity electric motor end cap needs.

Utility model content

The number of parts for including the purpose of this utility model is to overcome electric motor end cap of the existing technology it is more and There is a problem of that first end cover and second end cover can not be fitted close and the concentricity of first end cover and second end cover is lower, mentions For a kind of electric motor end cap, which can make first end cover and second end cover be fitted close and can reduce number of parts, It can be improved the concentricity of first end cover and second end cover simultaneously.

The another object of the utility model is to provide for a kind of motor including above-mentioned electric motor end cap.

To achieve the goals above, on the one hand the utility model provides a kind of electric motor end cap, and the electric motor end cap includes: the One end cap, the first end cover include first end plate and the first annular cylinder axially extending from the neighboring of the first end plate Body；And second end cover, the second end cover include the second end plate and from the neighboring of second end plate it is axially extending Second ring cylinder, wherein the first annular cylinder is inserted into the end far from second end plate of second circular cylinder It is interior and be interference fitted with the first annular cylinder, so that the first end cover and the second end cover form closed chamber.

In the above-mentioned technical solutions, the end insertion due to the second circular cylinder of second end cover far from the second end plate the It is interference fitted in one circular cylinder and with the first annular cylinder of first end cover, first end cover and second end cover is enable closely to match It closes, relative to the mode for using tightening of rivet first end cover and second end cover, reduces number of parts, simplify assembly process, Be conducive to the reduction of cost, and rivet is not present to make first end cover and second end cover can not be close-fitting because vibration loosens Risk, can guarantee the safe application performance of product, while can be improved the concentricity of first end cover and second end cover, be conducive to Use the raising of the performance of the motor of the electric motor end cap.

Preferably, the first annular cylinder includes: first section, and first section is connect with the first end plate； Second section, the radius of second section are greater than the radius of first section；And ring-shaped step, the ring-shaped step connection Between first section and second section, wherein second circular cylinder is inserted into second section and against institute State ring-shaped step.

Preferably, the inner sidewall of first section and the inner sidewall of second circular cylinder are along the electric motor end cap Axial direction alignment setting.

Preferably, the ring-shaped step is cone cylinder shape.

Preferably, the end face of the end of insertion second section of the ring-shaped step and second circular cylinder it Between have gap, the electric motor end cap includes the sealing ring that the gap location is arranged in.

Preferably, the end far from the first end plate of the first annular cylinder, which extends outwardly, is provided with flange, institute It states and is provided with mounting hole on flange.

Preferably, the circumferential direction around the first annular cylinder is equidistantly provided with multiple mounting holes.

Preferably, it is provided with the first shaft hole for allowing motor shaft to pass through in the first end plate, surrounds described first Axis hole is provided with first bearing room in the first end plate；It is provided on second end plate corresponding with the first shaft hole The second axis hole for allowing the motor shaft to pass through is provided with the second axis on second end plate around second axis hole Hold room.

The second aspect of the utility model provides a kind of motor, and the motor includes stator core and above-mentioned motor side Lid, the stator core are mounted in the closed chamber of the electric motor end cap.

Preferably, the inner sidewall of the stator core and the first annular cylinder that forms the closed chamber and described The inner sidewall of second circular cylinder is interference fitted respectively.

Other features and advantages of the utility model will the following detailed description will be given in the detailed implementation section.

Detailed description of the invention

Fig. 1 is the partial structure sectional view of the motor of the preferred embodiments of the present invention；

Fig. 2 is the top view of the motor of the preferred embodiments of the present invention.

Description of symbols

First end cover -1；First end plate -11；First annular cylinder -12；First section -121；Second section -122；Annular Step 123；Second end cover -2；Second end plate -21；Second circular cylinder -22；Flange-F；Mounting hole-H；Stator core -10；Electricity Generator terminal lid -20；Rotor core -30；Shaft -40；First bearing -50；Second bearing -60.

Specific embodiment

Specific embodiment of the present utility model is described in detail below in conjunction with attached drawing.It should be understood that herein Described specific embodiment is only used for describing and explaining the present invention, and is not intended to limit the utility model.

In the present invention, in the absence of explanation to the contrary, the noun of locality used such as " upper and lower, left and right " is usual Refer to reference to upper and lower, left and right shown in the drawings；" inside and outside " refers to inside and outside the profile relative to each component itself.

On the one hand the utility model provides a kind of electric motor end cap, the electric motor end cap includes first end cover 1 and second end cover 2, the first end cover 1 includes first end plate 11 and the first annular cylinder axially extending from the neighboring of the first end plate 11 Body 12, the second end cover 2 include the second end plate 21 and second ring axially extending from the neighboring of second end plate 21 Shape cylinder 22, wherein the first annular cylinder is inserted into the end far from second end plate 21 of second circular cylinder 22 It is interference fitted in body 12 and with the first annular cylinder 12, so that the first end cover 1 and the second end cover 2 form closing Chamber.

In the above-mentioned technical solutions, as shown in Figure 1, the separate second end of the second circular cylinder 22 due to second end cover 2 It is interference fitted in the first annular cylinder 12 of the end insertion first end cover 1 of plate 21 and with first annular cylinder 12, makes first end Lid 1 and second end cover 2 can be fitted close, and relative to the mode for using tightening of rivet first end cover 1 and second end cover 2, be reduced Number of parts, simplifies assembly process, is conducive to the reduction of cost, and there is no rivets to make first end because vibration loosens Lid 1 and second end cover 2 can not close-fitting risk, can guarantee the safe application performance of product, while can be improved first The concentricity of end cap 1 and second end cover 2 is conducive to the raising of the performance of the motor using the electric motor end cap.

The end far from the second end plate 21 of the second circular cylinder 22 of second end cover 2 is inserted into first end for convenience Designated position in the first annular cylinder 12 of lid 1, it is preferable that the first annular cylinder 12 includes first section 121, second Cylinder section 122 and ring-shaped step 123, first section 121 are connect with the first end plate 11, and the half of second section 122 Diameter is greater than the radius of first section 121, and the ring-shaped step 123 is connected to first section 121 and second section 122 Between, wherein second circular cylinder 22 is inserted into second section 122 and against the ring-shaped step 123.Also, The inner sidewall of inner sidewall and second circular cylinder 22 that first section 121 can also be made in this way is along the electric motor end cap Axial direction be aligned setting, to conveniently make stator core when installing stator core in the enclosure space to electric motor end cap It is interference fitted respectively with the inner sidewall of first section 121 and the inner sidewall of the second circular cylinder 22, is conducive to improve stator core With the concentricity of electric motor end cap, to guarantee the performance of motor.

In addition, manufacturing in order to facilitate processing, as illustrated in fig. 1, it is preferred that the ring-shaped step 123 is cone cylinder shape.Namely It says, the inclined setting of the relatively first annular cylinder 12 of the extending direction of ring-shaped step 123.It will be understood It is that ring-shaped step 123 can also extend along the radial direction of first annular cylinder 12.

Further, in order to improve the seal degree of 2 junction of first end cover 1 and second end cover, and second is not influenced The interference of the first annular cylinder 12 of the end and first end cover 1 far from the second end plate 21 of second circular cylinder 22 of end cap 2 Cooperation, it is preferable that the end of the insertion of the ring-shaped step 123 and second circular cylinder 22 second section 122 There is gap, the electric motor end cap includes the sealing ring that the gap location is arranged between end face.For example, sealing ring can be rubber Circle.

In addition, electric motor end cap is fixed on other mounting structures for convenience, as depicted in figs. 1 and 2, it is preferable that institute The end far from the first end plate 11 for stating first annular cylinder 12, which extends outwardly, is provided with flange F, is arranged on the flange F There is mounting hole H.Settable fastener, fastener may be, for example, bolt in mounting hole H.

Also, in order to enable electric motor end cap reliably and stress equalization be fixed on other mounting structures, it is preferable that Multiple mounting hole H are equidistantly provided with around the circumferential direction of the first annular cylinder 12.As shown in Fig. 2, mounting hole H Quantity be four.Also, in order to save material, flange F only can be set in the position for needing to be arranged mounting hole H.

As depicted in figs. 1 and 2, in order to enable motor shaft to be installed in rotation on electric motor end cap, it is preferable that described The first shaft hole for allowing motor shaft to pass through is provided on end plate 11, around the first shaft hole in the first end plate 11 On be provided with first bearing room；It is provided on second end plate 21 corresponding with the first shaft hole for allowing the motor The second axis hole that axis passes through is provided with second bearing room on second end plate 21 around second axis hole.

The second aspect of the utility model provides a kind of motor, and the motor includes stator core 10 and above-mentioned motor side Lid 20, the stator core 10 are mounted in the closed chamber of the electric motor end cap 20.Since the motor includes above-mentioned Electric motor end cap 20, therefore there is all or at least part of technical effects above for electric motor end cap 20, more specific technology The details and effect of scheme can refer to above.Wherein, as shown in Figure 1, being wound with stator winding on stator core 10, motor may be used also Including rotor core 30, motor shaft 40, first bearing 50 and second bearing 60, motor shaft 40 passes through first in first end plate 11 The second axis hole setting on axis hole and the second end plate 21, rotor core 30 are threaded through motor shaft in the enclosure space of electric motor end cap On, stator core 10 surrounds the outside that rotor core 30 is arranged in, and first bearing 50 is arranged in first bearing room, second bearing 60 are arranged in second bearing room.

Also, in order to improve the concentricity of stator core 10 Yu electric motor end cap, to guarantee the performance of motor, it is preferable that institute It states stator core 10 and forms the inner sidewall and second circular cylinder of the first annular cylinder 12 of the closed chamber 22 inner sidewall is interference fitted respectively.

Preferred embodiments of the present invention, still, the utility model and unlimited are described in detail in conjunction with attached drawing above In this.In the range of the technology design of the utility model, a variety of simple variants can be carried out to the technical solution of the utility model, It is combined in any suitable manner including each particular technique feature.In order to avoid unnecessary repetition, the utility model To various combinations of possible ways, no further explanation will be given.But these simple variants and combination equally should be considered as the utility model institute Disclosure belongs to the protection scope of the utility model.

Claims (10)

1. a kind of electric motor end cap, which is characterized in that the electric motor end cap includes:

First end cover (1), the first end cover (1) include first end plate (11) and the neighboring from the first end plate (11) Axially extending first annular cylinder (12)；With

Second end cover (2), the second end cover (2) include the second end plate (21) and from the neighboring of second end plate (21) Axially extending the second circular cylinder (22),

Wherein, the first annular cylinder is inserted into the end far from second end plate (21) of second circular cylinder (22) (12) it is interference fitted in and with the first annular cylinder (12), so that the first end cover (1) and the second end cover (2) shape At closed chamber.

2. electric motor end cap according to claim 1, which is characterized in that the first annular cylinder (12) includes:

First section (121), first section (121) connect with the first end plate (11)；

Second section (122), the radius of second section (122) are greater than the radius of first section (121)；With

Ring-shaped step (123), the ring-shaped step (123) be connected to first section (121) and second section (122) it Between,

Wherein, second circular cylinder (22) is inserted into second section (122) and against the ring-shaped step (123).

3. electric motor end cap according to claim 2, which is characterized in that the inner sidewall of first section (121) with it is described The inner sidewall of second circular cylinder (22) is aligned setting along the axial direction of the electric motor end cap.

4. electric motor end cap according to claim 2, which is characterized in that the ring-shaped step (123) is cone cylinder shape.

5. electric motor end cap according to claim 4, which is characterized in that the ring-shaped step (123) and second annular There is gap, the electric motor end cap includes setting between the end face of the end of the insertion of cylinder (22) second section (122) In the sealing ring of the gap location.

6. electric motor end cap according to any one of claims 1-5, which is characterized in that the first annular cylinder (12) End far from the first end plate (11), which extends outwardly, to be provided with flange (F), is provided with mounting hole (H) on the flange (F).

7. electric motor end cap according to claim 6, which is characterized in that surround the circumferential direction side of the first annular cylinder (12) To being equidistantly provided with multiple mounting holes (H).

8. electric motor end cap according to any one of claims 1-5, it is characterised in that:

The first shaft hole for allowing motor shaft to pass through is provided on the first end plate (11), around the first shaft hole in institute It states and is provided with first bearing room on first end plate (11)；

Second for allowing the motor shaft to pass through corresponding with the first shaft hole is provided on second end plate (21) Axis hole is provided with second bearing room on second end plate (21) around second axis hole.

9. a kind of motor, which is characterized in that the motor includes stator core (10) and any one of -8 institute according to claim 1 The electric motor end cap (20) stated, the stator core (10) are mounted in the closed chamber of the electric motor end cap (20).

10. motor according to claim 9, which is characterized in that the stator core (10) and the formation closed chamber The inner sidewall of the first annular cylinder (12) and the inner sidewall of second circular cylinder (22) be interference fitted respectively.