CN208461577U - Motor shell component and motor with the motor shell component - Google Patents

Abstract

The utility model proposes a kind of motor shell component and with the motor of the motor shell component.Motor shell component (2) includes shell bottom wall (3) and motor shaft (7).The shell bottom wall (3) has axis hole (4), the length of the axis hole (4) is limited jointly by the body thickness of the shell bottom wall (3) and its length of axis hole extension (5), and the axis hole extension (5) extends along generally perpendicular to the direction of shell bottom wall (3) from shell bottom wall (3).The motor shaft (7) is fixed to the axis hole (4).

Description

Motor shell component and motor with the motor shell component

Technical field

The utility model relates to a kind of motor shell components, and the motor with the motor shell component.

Background technique

Basic product of the motor as offer power is more in factory automation, family life automation, office automation etc. A field is widely applied.

Motor may include electric machine casing and the motor shaft fixed to electric machine casing.The motor shaft can be used for fixing motor The components such as rotor.In general, electric machine casing has axis hole, motor shaft is mounted and fixed in the axis hole of electric machine casing.However, for Such scheme, due to the usual thinner thickness of electric machine casing, the binding site of motor shaft and electric machine casing is shorter, therefore often deposits Phenomena such as glancing off, loosening during motor shaft is in assembly or circulation.

There is also some for enhancing the complex scenarios of stability of the motor shaft relative to electric machine casing, such as by motor casing Body is designed to two-part structure, increases the back shroud being riveted together with electric machine casing for assisting installation motor shaft.So And such scheme brings additional component and additional installation steps, causes motor manufacturing and assembles the increase of cost.

Utility model content

The utility model is directed to problems as mentioned above and demand, proposes the novel motor shell component of one kind and have to be somebody's turn to do The motor of motor shell component can overcome the technology mentioned in background technique due to taking feature as described below Problem, and there are other advantages being discussed below.

It is according to the present utility model in a first aspect, proposing a kind of motor shell component comprising:

Shell bottom wall, with axis hole, the length of the axis hole is prolonged by the body thickness and its axis hole of the shell bottom wall The length of extending portion limits jointly, and the axis hole extension extends along generally perpendicular to the direction of shell bottom wall from shell bottom wall；

Motor shaft is fixed to the axis hole.

The alternative embodiment of first aspect according to the present utility model, the axis hole extension is out of described shell bottom wall Internal stretch of the side towards motor shell component, the outside substantially flat of the shell bottom wall.

The alternative embodiment of first aspect according to the present utility model, the motor shaft and the axis hole are interference fit.

The alternative embodiment of first aspect according to the present utility model, the motor shaft and the axis hole extension rivet.

The alternative embodiment of first aspect according to the present utility model, the length t1 of the axis hole and the thickness of shell bottom wall T meets: 1.5t < t1 < 2t.

The alternative embodiment of first aspect according to the present utility model, the motor shell component include multiple from shell bottom Wall towards motor shell component internal stretch pole pawl.

The alternative embodiment of first aspect according to the present utility model, the pole pawl pass through punching by the material of shell bottom wall It is formed with bending.

The alternative embodiment of first aspect according to the present utility model, the pole pawl in shell bottom wall in radial directions It is uniformly distributed.

The alternative embodiment of first aspect according to the present utility model, the motor shell component also have from the shell The housing sidewall that the periphery of bottom wall extends, the housing sidewall and shell bottom wall participate in limiting interior accommodating space jointly.

Second aspect according to the present utility model, it is also proposed that a kind of motor, with first party according to the present utility model Motor shell component described in any alternative embodiment in face.

The alternative embodiment of second aspect according to the present utility model, motor also include

The coil block accommodated by motor shell component, the coil block have binding post；

The housing sidewall has opening, and the binding post extends to except motor shell component from the opening.

More description in detail is carried out to the optimum embodiment for implementing the utility model below in conjunction with attached drawing, to hold It changes places and understands the feature and advantage of the utility model.

Detailed description of the invention

It, hereinafter will be to the utility model embodiment in order to illustrate more clearly of the technical solution of the utility model embodiment Attached drawing simply introduced.Wherein, attached drawing is used only for showing some embodiments of the utility model, rather than will be originally practical new The whole embodiments limited to this of type.

Fig. 1 is the three-dimensional view of an exemplary embodiment of the motor shell component that the utility model is proposed；

Fig. 2 is the cross-sectional view of an exemplary embodiment of the motor shell component that the utility model is proposed；

Fig. 3 is at least part of decomposition diagram for the motor that the utility model is proposed, is had practical according to this The motor shell component of a novel exemplary embodiment.

Specific embodiment

In order to enable the purposes, technical schemes and advantages of the technical solution of the utility model are clearer, it hereinafter will knot The attached drawing for closing the utility model specific embodiment, is clearly and completely described the technical solution of the utility model embodiment. Identical appended drawing reference represents identical component in attached drawing.It should be noted that described embodiment is the utility model A part of the embodiment, instead of all the embodiments.Based on described the embodiments of the present invention, ordinary skill Personnel's every other embodiment obtained under the premise of being not necessarily to creative work, belongs to the model of the utility model protection It encloses.

Unless otherwise defined, the technical term or scientific term used herein is should be in the utility model fields The ordinary meaning that personage with general technical ability is understood.Make in the utility model patent application specification and claims " first ", " second " and similar word are not offered as any sequence, quantity or importance, and are used only to distinguish Different component parts.Equally, the similar word such as "one" or " one " also not necessarily indicates quantity limitation." comprising " or The similar word such as "comprising" mean to occur element or object before the word cover the element for appearing in the word presented hereinafter or Person's object and its equivalent, and it is not excluded for other elements or object.The similar word such as " connection " or " connected " is simultaneously non-limiting It in physics or mechanical connection, but may include electrical connection, it is either direct or indirect."upper", "lower", "left", "right" etc. are only used for indicating relative positional relationship, and after the absolute position for being described object changes, then this is opposite Positional relationship may also correspondingly change.

The utility model relates to a kind of motor shell components 2, may include shell bottom wall 3 and the electricity fixed to shell bottom wall Arbor 7.The motor shell component 2 can also have the housing sidewall 9 extended from the periphery of the shell bottom wall 3, the shell Side wall 9 and shell bottom wall 3 participate in limiting interior accommodating space jointly.The components such as coil block, the rotor of motor are mountable in institute It states in interior accommodating space.

Fig. 1 illustrates an exemplary embodiment of the motor shell component with shell bottom wall and motor shaft.Wherein, shell Body bottom wall 3 has axis hole 4, and the axis hole 4 is the through hole for being formed in shell bottom wall 3, for installing motor shaft 7.The motor Axis 7 is the axis that can be used for keeping rotor assembly, wall that the shell bottom wall 3 is electric machine casing, being equipped with motor shaft.

As shown in Fig. 2, according to the utility model, shell bottom wall has an axis hole extension 5, and the axis hole extension 5 is along big Body extends perpendicular to the direction of shell bottom wall 3 from shell bottom wall 3.The length of axis hole 4 by the shell bottom wall 3 body thickness and The length of its axis hole extension 5 limits jointly, that is to say, that the length of the axis hole 4 is the body thickness of the shell bottom wall 3 The sum of with the length of axis hole extension 5.The length of the axis hole is the length measured along the longitudinal axis of axis hole, is led in Fig. 2 T1 is crossed to show.

For the scheme of axis hole extension 5 is not present, the length of the axis hole in shell bottom wall 3 will be equal to shell bottom wall 3 Thickness t.And the wall of electric machine casing usually only has relatively thin wall thickness, such as common minitype permanent magnetism formula stepper motor, motor The general thickness of the wall of shell is such as 0.8mm.The length of the axis hole formed by this thin-walled is shorter, it is difficult to be formed with motor shaft It is firm to combine.In the present solution, the length t1 of axis hole 4 will be greater than the thickness of shell bottom wall 3 due to the presence of axis hole extension 5 T, to strengthen the cooperation intensity of axis and axis hole.Meanwhile for the complex scenario of other enhancing motor shaft stability, The program only relates to the change carried out to the partial structurtes of shell bottom wall, will not bring additional component and assembling steps.

Axis hole extension 5 can extend outwardly from the two sides of the shell bottom wall 3, with and be higher than shell bottom wall 3 principal plane. But preferred embodiment according to the present utility model, such as shown in Fig. 2, the axis hole extension 5 is from the inside of the shell bottom wall 3 6 towards motor shell component internal stretch, without prolonging from the outside of the shell bottom wall 3 far from the inside of motor shell component It stretches, so that the outside substantially flat of the shell bottom wall 3.In this way, entire motor shell component has flat bottom wall, in order to The further installation of entire electric machine assembly.

Motor shaft 7 is formed a fixed connection by the axis hole 4 with motor shell component.It is according to the present utility model preferred Embodiment, the motor shaft 7 are interference fit with the axis hole 4.In addition, the motor shaft 7 and shell in order to further increase Fastening strength between bottom wall 3, another preferred embodiment according to the present utility model can also increase in the position of axis hole extension 5 If region is riveted, so that the motor shaft 7 is riveted together with the axis hole extension 5.Riveting scheme in this way, so that The combination of motor shaft 7 and shell bottom wall 3 is further enhanced.

Preferably, the end of motor shaft 7 is flushed with the lateral surface of shell bottom wall 3, without prominent from shell bottom wall 3.

Axis hole extension 5 can be cyclic annular reinforcement part as shown in Figure 2, but its concrete shape is without being limited thereto, as long as its energy Enough so that the length of axis hole 4 is greater than the body thickness of shell bottom wall 3.

Preferred embodiment according to the present utility model, the length t1 of the axis hole 4 and the thickness t of shell bottom wall 3 meet: 1.5t<t1<2t.Wherein the thickness t of the shell bottom wall 3 means the thickness of the main part of shell bottom wall, as shown in Figure 2.It is full On the one hand the motor shell component of the foot range can be realized the enhancing of engaging portion between motor shaft 7 and shell bottom wall 3, on the one hand Also assure the manufacturing cost reasonability and structure optimization of motor bottom wall 3.

Also as shown in Fig. 2, the motor shell component 2 be formed with it is multiple from shell bottom wall 3 towards motor shell component The pole pawl 8 of internal stretch.Preferred embodiment according to the present utility model, the pole pawl 8 pass through punching by the material of shell bottom wall 3 It is formed with bending.In this way, entire shell bottom wall is monolithic structure.Preferred embodiment according to the present utility model, Duo Geji Pawl 8 is uniformly distributed in radial directions in shell bottom wall 3.

The motor of the motor shell component proposed with the utility model can be various types of motors.Particularly, originally The motor shell component that utility model is proposed is especially suitable for micro-machine, such as micro- special stepper motor.

Fig. 3 shows at least part of decomposition diagram of the motor according to an embodiment, with previously described Motor shell component.In addition, as shown in figure 3, the motor 1 has mounting plate component 13, the line accommodated by motor shell component 2 Coil assembly 10, rotor assembly 14.Wherein, mounting plate component 13 can ancillary coil component 10 installation.Rotor assembly 14 is around motor Axis 7 is arranged, and can engage motor shell component 2 by gasket 15.

The coil block 10 has binding post 11, and the housing sidewall 9 has opening 12, and the binding post 11 is from described Opening 12 extends to except motor shell component.The shape of the opening 12 is unlimited, it is preferable that it is to be formed in housing sidewall 9 In, the open notch on the direction of motor shaft 7.In this way, by the way that binding post 11 to be aligned with the opening 12, coil block It can be fit directly into the inner space of motor shell component 2.

The motor shell component and motor that the utility model is proposed is described in detail above in reference to preferred embodiment Exemplary embodiment, however it will be appreciated by those skilled in the art that under the premise of without departing substantially from the utility model theory, it can To make a variety of modifications and remodeling to above-mentioned specific embodiment, and can to the utility model proposes various technical characteristics, knot Structure carries out multiple combinations, and without departing from the protection scope of the utility model, the protection scope of the utility model is by appended right It is required that determining.

Reference signs list

1 motor

2 motor shell components

3 shell bottom walls

4 axis holes

5 axis hole extensions

The inside of 6 shell bottom walls

7 motor shafts

8 pole pawls

9 housing sidewalls

10 coil blocks

11 binding posts

12 openings

13 mounting plate components

14 rotor assembly

15 washers

The length of t1 axis hole

The thickness of t shell bottom wall

Claims (11)

1. a kind of motor shell component characterized by comprising

Shell bottom wall (3), with axis hole (4), the length of the axis hole (4) by the shell bottom wall (3) body thickness and The length of its axis hole extension (5) limits jointly, and the axis hole extension (5) is along the direction generally perpendicular to shell bottom wall (3) Extend from shell bottom wall (3)；

Motor shaft (7) is fixed to the axis hole (4).

2. motor shell component as described in claim 1, which is characterized in that the axis hole extension (5) is from the shell bottom Internal stretch of the inside (6) of wall (3) towards motor shell component, the outside substantially flat of the shell bottom wall (3).

3. motor shell component as described in claim 1, which is characterized in that the motor shaft (7) and the axis hole (4) were It is full of cooperation.

4. motor shell component as described in claim 1, which is characterized in that the motor shaft (7) and the axis hole extension (5) it rivets.

5. motor shell component as described in claim 1, which is characterized in that the length t1 and shell bottom wall of the axis hole (4) (3) thickness t meets: 1.5t < t1 < 2t.

6. motor shell component as described in claim 1, which is characterized in that the motor shell component (2) include it is multiple from Shell bottom wall (3) towards motor shell component internal stretch pole pawl (8).

7. motor shell component as claimed in claim 6, which is characterized in that the pole pawl (8) by shell bottom wall (3) material It is formed and being punched and bending.

8. motor shell component as claimed in claim 6, which is characterized in that the pole pawl (8) is in shell bottom wall (3) in diameter It is uniformly distributed on direction.

9. motor shell component as described in claim 1, which is characterized in that the motor shell component (2) also has from institute The housing sidewall (9) that the periphery of shell bottom wall (3) extends is stated, the housing sidewall (9) and shell bottom wall (3) participate in limiting jointly Interior accommodating space.

10. a kind of motor, which is characterized in that it has the motor shell component as described in any one of claim 1-9 (2)。

11. motor as claimed in claim 10, which is characterized in that also include

The coil block (10) accommodated by motor shell component (2), the coil block (10) have binding post (11)；

The housing sidewall (9) has opening (12), and the binding post (11) extends to electric machine casing group from the opening (12) Except part.