CN215528765U - Outer rotor motor and bearing mounting seat thereof - Google Patents

Abstract

The utility model belongs to the technical field of motors, and particularly relates to an outer rotor motor and a bearing mounting seat thereof. Wherein, the bearing mount pad includes the body and locates the installation department of body one end, and the body is used for installing stator module at least, and the installation department is equipped with the wire groove, and the wire groove is used for the power supply line to wear out, is connected with the limiting plate on the installation department, and the limiting plate has the portion of suppressing, and the portion of suppressing and the wire groove cooperation are in order to restrict the relative wire groove removal of power supply line. The pressing part of the limiting plate presses the power line to limit movement, the power line cannot shake due to external force when the outer rotor motor using the bearing mounting seat operates, so that looseness of connection points of the power line and the motor internal power utilization structure can be avoided, poor contact is avoided, in addition, the power line cannot be broken due to repeated bending caused by displacement, the power line can be effectively prevented from being damaged, and the overall performance of the outer rotor motor is further improved.

Description

Outer rotor motor and bearing mounting seat thereof

Technical Field

The utility model belongs to the technical field of motors, and particularly relates to an outer rotor motor and a bearing mounting seat thereof.

Background

The structure of the external rotor motor is different from that of the traditional motor, the stator component of the external rotor motor is arranged in the middle of the motor, the rotor component is arranged on the outer side, and the external lead of the motor is connected with the internal electric structure of the motor, such as a wiring board, a winding coil and the like, so that power is supplied for the operation of the motor, and the stability of the connection between a power line and the internal electric structure of the motor directly influences the working stability of the motor. During wiring, the power cord is drawn from the inside of the motor, and the one end of the power cord, which is positioned outside the motor, is likely to be affected by various factors to shake, so that the connecting point of the power cord and the internal structure of the motor is driven to be loosened, poor electric connection contact is caused, the power supply of the motor is unstable, and the motor works abnormally.

SUMMERY OF THE UTILITY MODEL

The embodiment of the utility model mainly aims to provide an outer rotor motor and a bearing mounting seat thereof, and aims to solve the technical problems that in the prior art, one end of a power line of the outer rotor motor, which is positioned outside the motor, is likely to shake under the influence of various factors, so that a connection point of the power line and an internal structure of the motor is driven to be loosened, and therefore poor electric connection contact and unstable power supply of the motor are caused.

The technical scheme adopted by the utility model is as follows: the utility model provides a bearing mounting seat, includes the body and locates the installation department of body one end, the body is used for installing stator module at least, and the installation department is equipped with the wire groove, and the wire groove is used for the power supply line to wear out, is connected with the limiting plate on the installation department, and the limiting plate has the portion of suppressing, and the portion of suppressing moves with the relative wire groove of restriction power supply line with the wire groove cooperation.

In some embodiments, the outlet slots are located on the sides of the body.

In some embodiments, the mounting portion includes a cover portion and a side portion connected to the cover portion, the side portion is provided at a side portion of the body, and the outlet groove is provided at the side portion.

In some embodiments, the limiting plate comprises a connecting part, the pressing part is connected with the connecting part, the connecting part is connected with the cover plate part and/or the side plate part, and the pressing part extends into the outlet groove.

In some embodiments, the bearing mounting seat is further provided with a wire sleeve, the pressing portion is matched with the wire outlet groove to clamp one end of the wire sleeve in the wire outlet groove, the other end of the wire sleeve deviates from the body and penetrates out of the wire outlet groove, and the power line is sleeved in the wire sleeve.

In some embodiments, a clamping groove is formed at one end of the wire sleeve, a protrusion is arranged in the wire outlet groove, the protrusion and the pressing portion are respectively clamped in the clamping groove, and the protrusion and the pressing portion are matched to clamp the wire sleeve.

In some embodiments, the cover plate portion is provided with an outlet, the outlet is communicated with the outlet groove, and the connecting portion covers the outlet.

In some embodiments, the body is provided with a first bearing chamber and a second bearing chamber which are coaxially disposed with the communication hole and communicate with each other, the first bearing chamber extends in the axial direction to the mounting portion, and an inner diameter of the first bearing chamber is greater than or equal to an inner diameter of the second bearing chamber.

In some embodiments, the body includes first barrel and the second barrel that sets up in succession, and first barrel links to each other with the installation department, and the external diameter of first barrel is greater than the external diameter of second barrel, and the second barrel is used for supplying stator core cup joint.

In some embodiments, the outer wall surface of the second cylinder is provided with a groove, and the groove can be used for storing adhesive for bonding the stator core.

In some embodiments, a side plate portion is disposed around the body, the side plate portion for encasing a yoke portion of a rotor mounted to the bearing mount.

One or more technical solutions in the bearing mounting seat provided by the embodiment of the present invention have at least one of the following technical effects: the bearing mounting seat is characterized in that the body of the bearing mounting seat is used for mounting a stator assembly and the like of an outer rotor motor, the mounting part is provided with a wire outlet groove and is connected with a limiting plate, a power line of the outer rotor motor is connected with an electric structure in the motor and then penetrates out of the wire outlet groove, the power line cannot move relative to the wire outlet groove under the abutting limiting action of an abutting part of the limiting plate, and the power line is limited to move after the limiting plate is connected with the mounting part. Like this, the external rotor electric machine that uses this bearing mount pad is at the operation in-process, and the power cord can not receive external force influence and take place to rock to can avoid power cord and the tie point of the inside power consumption structure of motor to appear becoming flexible, avoid contact failure, in addition, the power cord also can not be because of producing the aversion and buckle repeatedly and break off, thereby can effectively avoid the power cord to take place the damage, thereby further promote external rotor electric machine's complete machine performance.

The other technical scheme of the utility model is as follows: the outer rotor motor comprises a stator assembly, a rotor assembly and the bearing mounting seat, wherein the stator assembly is mounted on the body, and the rotor assembly is rotatably connected with the body through a rotating shaft.

One or more technical schemes in the external rotor motor provided by the embodiment of the utility model at least have one of the following technical effects: according to the outer rotor motor, by using the bearing mounting seat, the connection between the power line of the outer rotor motor and the internal electricity utilization structure is more reliable, the electrical property of the outer rotor motor is more stable, the probability of the outer rotor motor failing due to poor electrical contact is reduced, the overall performance of the outer rotor motor is improved, the maintenance frequency is reduced, and the user experience is improved.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise.

FIG. 1 is a cross-sectional structural view of a bearing mount with a power cord installed according to an embodiment of the present invention;

FIG. 2 is an exploded view of the bearing mount shown in FIG. 1 with the power cord installed;

FIG. 3 is a top view of the bearing mount shown in FIG. 2;

FIG. 4 is a bottom view of the bearing mount shown in FIG. 2;

FIG. 5 is a sectional view of the power cord sleeved to the cord housing;

FIG. 6 is a schematic structural diagram of a limiting plate of the bearing mount shown in FIG. 2;

FIG. 7 is a cross-sectional view taken along line A-A of FIG. 4;

fig. 8 is a sectional structural view of an outer rotor motor using the bearing mount of the present embodiment.

In the figures, the various figures are mainly marked:

10. a bearing mount;

11. a body; 111. a first cylinder; 112. a second cylinder; 1121. a groove; 113. a first bearing chamber; 114. a communicating hole; 115. a second bearing chamber; 12. an installation part; 121. an outlet groove; 1211. a protrusion; 122. a cover plate portion; 1221. an outlet; 1222. embedding a mounting hole; 1223. a connecting arm; 1224. a screw hole; 1225. a positioning column; 123. a side plate portion; 13. a limiting plate; 131. a connecting portion; 1311. positioning holes; 1312. connecting holes; 132. a pressing part; 14. a wire sleeve; 141. a card slot; 142. a threading hole; 15. a seal member;

20. a power line; 21. a connector; 22. a protective sleeve; 23. a wire;

30. a stator assembly; 31. a stator core; 32. a winding coil; 33. an insulating frame;

40. a rotor assembly; 41. a rotor; 411. a yoke portion; 42. magnetic steel;

50. a rotating shaft; 51. a first bearing; 52. a second bearing;

60. a circuit board;

100. a fastener.

Detailed Description

In order to make the technical problems, technical solutions and advantageous effects to be solved by the present invention more clearly apparent, the present invention is further described in detail below with reference to fig. 1 to 8 and the embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the utility model and are not intended to limit the utility model.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.

It will be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like, as used herein, refer to an orientation or positional relationship indicated in the drawings, which is solely for the purpose of facilitating the description and simplifying the description, and 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 is therefore not to be construed as limiting the utility model.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. The features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.

Reference in the specification to "one embodiment," "some embodiments," or "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment is included in one or more embodiments of the utility model. The appearances of the phrases "in one embodiment," "in some embodiments," "in other embodiments," or the like in various places in the specification are not necessarily all referring to the same embodiment, but rather "one or more but not all embodiments" unless specifically stated otherwise. Furthermore, the particular features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.

Referring to fig. 1 to 4 and 8, fig. 1 is a cross-sectional structural view of a bearing mounting base with a power line according to an embodiment of the present invention, fig. 2 is an exploded schematic view of the bearing mounting base with the power line shown in fig. 1, fig. 3 is a top view of the bearing mounting base shown in fig. 2, fig. 4 is a bottom view of the bearing mounting base shown in fig. 2, and fig. 8 is a cross-sectional structural view of an external rotor motor using the bearing mounting base of the present embodiment.

As shown in fig. 1 to 3 and 8, the present embodiment provides a bearing mount 10, and the bearing mount 10 is used to assemble a stator assembly 30, a rotor assembly 40, a rotating shaft 50, and the like to form an external rotor motor. In this embodiment, the bearing mounting seat 10 includes a body 11 and a mounting portion 12 disposed at one end of the body 11, wherein the body 11 is at least used for mounting a stator assembly 30 of the outer rotor motor, the mounting portion 12 is provided with an outlet groove 121, the outlet groove 121 is used for allowing the power line 20 to pass through, the mounting portion 12 is connected with a limiting plate 13, the limiting plate 13 has a pressing portion 132, the pressing portion 132 is matched with the outlet groove 121, the power line 20 is pressed and limited in the outlet groove 121, so as to limit the power line 20 from moving relative to the outlet groove 121.

In a specific embodiment, as shown in fig. 8, the external rotor electric machine further includes a circuit board 60, a stator assembly 30 and a rotor assembly 40, the stator assembly 30 includes a stator core 31, an insulating frame 33 and a winding coil 32, the stator core 31 is sleeved on the body 11 of the bearing mount 10, the insulating frame 33 covers the stator core 31, specifically, the stator core 31 is provided with a plurality of salient poles, the insulating frame 33 covers the salient poles, and the winding coil 32 is wound on the salient poles covered by the insulating frame 33. The bearing chamber is provided in the body 11 of the bearing mounting seat 10, the bearing is embedded in the bearing chamber, and the rotor assembly 40 is rotatably connected to the body 11 by being sleeved with the bearing through the rotating shaft 50. The circuit board 60 is installed inside the external rotor motor and electrically connected to the winding coil 32, and one end of the power line 20 is connected to the circuit board 60, and the other end of the power line passes through the wire outlet groove 121 of the installation portion 12.

According to the bearing mounting seat 10 of the embodiment of the utility model, the body 11 is used for mounting the stator assembly 30 and the rotor assembly 40 of the external rotor motor, the circuit board 60 and the like, the mounting portion 12 is provided with the wire outlet groove 121 and is connected with the limiting plate 13, the power wire 20 of the external rotor motor penetrates out of the wire outlet groove 121 after being connected with an electric structure inside the motor, and cannot move relative to the wire outlet groove 121 under the abutting limiting action of the abutting portion 132 of the limiting plate 13, and after the limiting plate 13 is connected to the mounting portion 12, the power wire 20 is limited to move. Like this, use the external rotor electric machine of this bearing mount 10 in operation process, power cord 20 can not take place to rock by the influence of external force to can avoid power cord 20 and the inside power consumption structure of motor for the tie point of circuit board 60, winding coil 32 etc. to appear not hard up, avoid contact failure, in addition, power cord 20 also can not be because of producing the displacement and buckling repeatedly and breaking, thereby can effectively avoid power cord 20 to take place the damage, thereby further promote the complete machine performance who uses the external rotor electric machine of the bearing mount 10 of this embodiment.

In this embodiment, installation department 12 and body 11 integrated into one piece, both need not the later stage assembly, and compact structure, stability and intensity are higher.

In another embodiment of the present invention, as shown in fig. 1, 2 and 8, the body 11 is a cylindrical body, and the cylindrical body 11 has an axis as shown by a dotted line L in fig. 1, and the outlet groove 121 is located at a side portion of the body 11 in a direction perpendicular to the axis. When assembling the external rotor motor, the stator assembly 30 is sleeved outside the body 11 along the direction shown by the axis L, at this time, the wire outlet groove 121 is formed in the side portion of the body 11, which is equivalent to the wire outlet groove 121 being formed in the side portion of the stator assembly 30, so that the power line 20 is led out from the side portion of the stator assembly 30, the routing arrangement of the power line 20 does not lead to the increase of the axial size of the external rotor motor using the bearing mounting seat 10 of this embodiment, which is helpful to reduce the axial height of the external rotor motor, and makes the structure of the motor more compact.

Specifically, in the present embodiment, the mounting portion 12 is vertically disposed at one end of the body 11, the mounting portion 12 includes a cover plate portion 122 disposed vertically to the body 11 and a side plate portion 123 formed by folding back from the cover plate portion 122, the side plate portion 123 is disposed at a side portion of the body 11, and the outlet groove 121 is disposed at the side plate portion 123. In this way, when the outer rotor motor is assembled, the side plate portion 123 is located at the side portion of the stator assembly 30, and the power supply line 20 is led out from the side portion of the stator assembly 30, so that the axial dimension of the outer rotor motor is not increased.

In another embodiment of the utility model, as shown in fig. 1, fig. 2 and fig. 4, the position-limiting plate 13 further includes a connecting portion 131, the pressing portion 132 is connected to the connecting portion 131, the connecting portion 131 is connected to the cover plate portion 122, or connected to the side plate portion 123, or connected to both the cover plate portion 122 and the side plate portion 123, the pressing portion 132 extends into the wire-out groove 121, and when the power cord 20 passes through the wire-out groove 121, the pressing portion 132 cooperates with the wire-out groove 121 to clamp the power cord 20 so as to limit the movement of the power cord 20.

In some embodiments, the power line 20 may be a bare wire structure, in which the power line 20 directly penetrates through the wire outlet groove 121, and the pressing portion 132 directly abuts against the power line 20, so as to clamp the power line 20.

In other embodiments, as shown in fig. 1 and fig. 2, a protection structure may also be provided for protecting the power line 20, for example, the bearing mounting seat 10 of this embodiment may be provided with a wire sleeve 14, specifically, one end of the wire sleeve 14 is clamped in the wire outlet groove 121, the other end of the wire sleeve 14 is away from the body 11 and extends out of the wire outlet groove 121, the wire sleeve 14 is provided with a wire sleeve hole 142 penetrating through both ends, the power line 20 is inserted into the wire sleeve hole 142 of the wire sleeve 14 and then penetrates out of the wire outlet groove 121, at this time, the pressing portion 132 of the position limiting plate 13 cooperates with the wire outlet groove 121 to clamp the wire sleeve 14, so as to prevent the wire sleeve 14 from moving relative to the wire outlet groove 121, and thus limit the power line 20 from moving relative to the wire outlet groove 121.

Specifically, the bearing mount 10 is provided with the wire sleeve 14 for the power wire 20 to pass through, the power wire 20 specifically includes a protective sleeve 22 and a wire 23 arranged in the protective sleeve 22, and a connector 21 connected to one end of the wire 23, the protective sleeve 22 is sleeved on one end of the wire sleeve 14 located outside the wire outlet groove 121, the wire 23 passes through a wire sleeving hole 142 of the wire sleeve 14 and is connected to the circuit board 60 or the winding coil 32 after penetrating out of the wire sleeve 14, as shown in fig. 8, the connector 21 is connected to one end of the wire 23 departing from the body 11 and is used for being plugged into an external power supply interface.

In another embodiment of the present invention, please refer to fig. 1 to fig. 3, and fig. 5 and fig. 6, wherein fig. 5 is a cross-sectional view of a power cord sleeved on a cord sleeve, and fig. 6 is a schematic structural view of the limiting plate 13 of the bearing mount 10 shown in fig. 2.

In this embodiment, a slot 141 is disposed at one end of the wire sleeve 14 clamped in the wire outlet groove 121, a protrusion 1211 is formed by the groove wall of the wire outlet groove 121 extending obliquely toward the body 11, when the position-limiting plate 13 is connected to the mounting portion 12, the pressing portion 132 and the protrusion 1211 are opposite to each other and spaced, and the protrusion 1211 and the pressing portion 132 can be respectively clamped in the slot 141 of the wire sleeve 14, so that the wire sleeve 14 is clamped in the wire outlet groove 121 under the cooperation of the protrusion 1211 and the pressing portion 132.

In some specific embodiments, as shown in fig. 3, the cross section of the protrusion 1211 in the wire outlet groove 121 is in a U shape adapted to the cross section of the wire sleeve 14, when the position-limiting plate 13 is mounted on the mounting portion 12, the pressing portion 132 is located at the position of the notch of the wire outlet groove 121, the pressing portion 132 and the protrusion 1211 cooperate to seal and clamp the wire sleeve 14, and there is no gap between the wire sleeve 14 and the groove wall of the wire outlet groove 121 and between the pressing portion 132, so that dust, moisture, and the like can be prevented from entering, the wire outlet sealing grade of the bearing mount 10 is improved, and the waterproof capability is improved.

In another embodiment of the present invention, as shown in fig. 2 to 4, the cover plate portion 122 of the mounting portion 12 is provided with an outlet 1221, the outlet 1221 is communicated with the outlet groove 121, and the connecting portion 131 covers the outlet 1221. Thus, the cover plate portion 122 is provided with the wire outlet 1221, the size of the wire outlet 1221 can be larger than that of the wire outlet groove 121, when the power cord 20 is connected, the power cord 20 and the wire sleeve 14 are assembled, the power cord 20 is connected with the winding coil 32 or the circuit board 60, the wire sleeve 14 and the power cord 20 are pulled out from the wire outlet 1221, then the clamping groove 141 of the wire sleeve 14 is clamped with the protrusion 1211 of the wire outlet groove 121, and finally the limiting plate 13 is connected to the mounting portion 12, so that the pressing portion 132 is correspondingly clamped into the clamping groove 141 of the wire sleeve 14.

Like this, outlet 1221's setting makes things convenient for wearing to establish of power cord 20 more, and when connecting power cord 20, can realize being connected power cord 20 and winding coil 32 or circuit board 60 earlier, draws power cord 20 again, compares the mode of leading in power cord 20 earlier and then being connected with winding coil 32 or circuit board 60, and its operation is more convenient, and the assembly methods is simple more effective. In addition, the connection portion 131 of the stopper plate 13 can cover the outlet 1221, and dust, moisture, or the like can be prevented from entering through the outlet 1221.

Specifically, in the present embodiment, as shown in fig. 2 and 3, the cover plate portion 122 has a connecting arm 1223 extending into the outlet 1221, a screw hole 1224 is opened in the connecting arm 1223, a connecting hole 1312 through which the fastening member 100 is inserted is provided at a position of the connecting portion 131 of the stopper plate 13 corresponding to the screw hole 1224, and the stopper plate 13 is screwed to the connecting arm 1223 after the fastening member 100 such as a screw is inserted through the connecting hole 1312. In addition, the connecting arm 1223 is further provided with a positioning column 1225 in a protruding manner, a positioning hole 1311 is provided at a position, corresponding to the positioning column 1225, of the connecting portion 131 of the limiting plate 13, and when the limiting plate 13 is screwed to the cover plate portion 122, the positioning column 1225 is inserted into the positioning hole 1311 in an adaptive manner, which is convenient for positioning and mounting the limiting plate 13.

In another embodiment of the present invention, please refer to fig. 1, fig. 4, fig. 7 and fig. 8, wherein fig. 7 is a cross-sectional view taken along the line a-a in fig. 4.

In this embodiment, the body 11 of the bearing mount 10 is further provided with a first bearing chamber 113, a second bearing chamber 115, and a communication hole 114, the first bearing chamber 113, the second bearing chamber 115, and the communication hole 114 are coaxially disposed, the first bearing chamber 113 and the second bearing chamber 115 are respectively located on both sides of the communication hole 114, and the communication hole 114 penetrates the first bearing chamber 113 and the second bearing chamber. The first bearing chamber 113 is used for fitting the first bearing 51, the second bearing chamber 115 is used for fitting the second bearing 52, and the shaft 50 of the outer rotor motor is inserted into the main body 11 of the bearing mount 10 of the present embodiment through the first bearing 51 and the second bearing 52, as shown in fig. 8. That is, two bearing chambers respectively disposed at both axial ends are provided in the bearing mount 10, and the bearing chambers respectively disposed at both axial ends increase the span of the two bearings along the axial direction, so that the support strength and the rotational stability of the rotating shaft 50 are improved.

Further, in the present embodiment, as shown in fig. 7, the inner diameter of the first bearing chamber 113 is greater than or equal to the inner diameter of the second bearing chamber 115. Thus, when the inner diameters of the two bearing chambers are equal, the same size bearing can be selected to connect the rotating shaft 50; when the inner diameter of the first bearing chamber 113 is larger than the inner diameter of the second bearing chamber 115, a large-sized bearing may be embedded in the first bearing chamber 113, as shown in fig. 8, the size of the first bearing 51 may be set larger than that of the second bearing 52, and the large-sized bearing may be manufactured at a lower cost, which may help to reduce the production cost.

In a particular embodiment, the first bearing chamber 113 may extend axially to the mounting portion 12, in particular to the cover portion 122 of the mounting portion 12, and the second bearing chamber 115 is provided at an end of the body 1111 facing away from the cover portion 122.

In another embodiment of the present invention, as shown in fig. 4, 7 and 8, the body 11 of the bearing mount 10 of this embodiment includes a first cylinder 111 and a second cylinder 112 continuously arranged in the axial direction of the body 11, the first cylinder 111 is connected to the mounting portion 12, the outer diameter of the first cylinder 111 is larger than that of the second cylinder 112, and when the external rotor motor is assembled, the second cylinder 112 is used for the stator core 31 to be sleeved.

Wherein, when stator core 31 cup joints in second barrel 112, as shown in fig. 8, stator core 31 offsets towards the terminal surface of installation department 12 and the terminal surface that first barrel 111 deviates from installation department 12 to ensure to leave the clearance between stator core 31 and the apron portion 122 of installation department 12, this clearance provides for winding coil 32 and winds and establishes the space, avoids coil and installation department 12 to contact, and simultaneously, this clearance can also be used for setting up circuit board 60, specifically, circuit board 60 can overlap on first barrel 111.

In another embodiment of the present invention, as shown in fig. 1, 7 and 8, the outer wall surface of the second cylinder 112 is provided with a groove 1121, specifically, the groove 1121 is annularly provided at the end of the second cylinder 112 connected to the first cylinder 111, and the groove 1121 may be used for storing an adhesive for adhering the stator core 31.

Specifically, in the present embodiment, the stator core 31 may be loosely fitted and sleeved on the second cylinder 112, and bonded to the second cylinder 112 by an adhesive, such as glue, and the groove 1121 may be used to accommodate an excess adhesive during bonding. Therefore, the stator core 31 can be in clearance fit with the second cylinder 112 for sleeving, the second cylinder 112 and the bearing inside the second cylinder 112 cannot be deformed due to extrusion when the stator core 31 is assembled, the stator core 31 and the second cylinder are bonded by using the adhesive, the connection reliability between the stator core 31 and the second cylinder is improved, and vibration and noise caused by shaking of the stator core 31 due to the existence of a clearance are avoided; by arranging the groove 1121, when the stator core 31 is bonded to the second cylinder 112 by glue or the like, the excess glue can flow into the groove 1121, and cannot flow to other positions to cause pollution or influence on installation and operation of other structures.

In another embodiment of the present invention, as shown in fig. 1, 7 and 8, the side plate portion 123 of the mounting portion 12 is disposed around the body 11, and when the rotor 41 is mounted to the bearing mount 10 of the present embodiment, the side plate portion 123 can wrap the yoke portion 411 of the rotor 41. Specifically, in the present embodiment, the side plate portion 123 is an annular portion disposed around the body 11, and when the rotor 41 is mounted on the bearing mount 10, the end of the side plate portion 123 facing away from the cover plate portion 122 extends to overlap with the end of the yoke portion 411, and at this time, the side plate portion 123 wraps the end of the yoke portion 411; of course, in other embodiments, when the size of the side plate 123 is large enough, the side plate 123 may completely cover the yoke portion 411 of the rotor 41.

Thus, when the stator assembly 30 and the rotor assembly 40 are mounted on the bearing mounting base 10 of the present embodiment, the yoke portion 411 of the rotor 41 can partially extend into the inner side of the side plate portion 123, the side plate portion 123 wraps the end portion of the yoke portion 411 of the rotor 41 from the outside, the magnetic steel 42 of the rotor assembly 40 is attached to the inner side wall of the yoke portion 411 away from the side plate portion 123, and no gap exists between the side plate portion 123 and the yoke portion 411 of the rotor 41 along the axial direction of the body 11, so that moisture, dust and the like can be prevented from entering and affecting the normal operation of the magnetic steel 42, the stator assembly 30, the circuit board 60 and the like.

In another embodiment of the present invention, as shown in fig. 1, 7 and 8, the cover plate portion 122 of the mounting portion 12 is further provided with an insertion hole 1222, the insertion hole 1222 may be a through hole or a blind hole, the bearing mount 10 may further include a sealing member 15, and the sealing member 15 covers the insertion hole 1222. In actual use, the sealing member 15 may be a name plate or a label of a product, wherein when the sealing member 15 is a metal name plate, the sealing member 15 is embedded in the embedding hole 1222.

Another embodiment of the present invention also provides an external rotor motor, as shown in fig. 8, which includes a stator assembly 30, a rotor assembly 40, and the bearing mount 10 described above. Wherein, stator module 30 is installed on body 11, and rotor module 40 is connected with body 11 through pivot 50 in a rotating manner.

According to the outer rotor motor provided by the embodiment of the utility model, by using the bearing mounting seat 10, the connection between the power line 20 of the outer rotor motor and an internal electricity utilization structure is more reliable, the electrical property of the outer rotor motor is more stable, the probability of the outer rotor motor failing due to poor electrical contact is reduced, the overall performance of the outer rotor motor is improved, the maintenance frequency is reduced, and the user experience is improved. The outer rotor motor also has other technical effects of the bearing mounting seat 10 provided by the above embodiments, and details are not repeated here.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the utility model, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.

Claims (12)

1. The utility model provides a bearing mounting seat, its characterized in that includes the body and locates the installation department of body one end, the body is used for assembling stator module at least, the installation department is equipped with the wire groove, the wire groove is used for supplying the power cord to wear out, be connected with the limiting plate on the installation department, the limiting plate has the portion of pressing, press with the wire groove cooperation is in order to restrict the power cord is relative the wire groove removes.

2. The bearing mount of claim 1, wherein the outlet groove is located at a side of the body.

3. The bearing mount of claim 2, wherein the mounting portion includes a cover plate portion and a side plate portion connected to the cover plate portion, the side plate portion being provided at a side portion of the body, and the outlet groove being provided at the side plate portion.

4. The bearing mounting seat according to claim 3, wherein the limiting plate further comprises a connecting portion, the pressing portion is connected to the connecting portion, the connecting portion is connected to the cover plate portion and/or the side plate portion, and the pressing portion extends into the wire outlet groove.

5. The bearing mounting seat according to claim 4, wherein the bearing mounting seat is further provided with a wire sleeve, the pressing portion is matched with the wire outlet groove to clamp one end of the wire sleeve in the wire outlet groove, the other end of the wire sleeve penetrates out of the wire outlet groove, and the power line is sleeved in the wire sleeve.

6. The bearing mounting seat according to claim 5, wherein a clamping groove is formed at one end of the wire sleeve, a protrusion is arranged in the wire outlet groove, the protrusion and the pressing portion are respectively clamped in the clamping groove, and the protrusion and the pressing portion are matched to clamp the wire sleeve.

7. The bearing mount of claim 4, wherein the cover plate portion is provided with an outlet, the outlet communicating with the outlet groove, and the connecting portion covers the outlet.

8. The bearing mount according to any one of claims 1 to 7, wherein the body is provided with a first bearing chamber and a second bearing chamber, the first bearing chamber and the second bearing chamber are coaxially arranged and communicate with each other, and an inner diameter of the first bearing chamber is greater than or equal to an inner diameter of the second bearing chamber.

9. The bearing mounting seat according to any one of claims 3 to 7, wherein the body comprises a first cylinder and a second cylinder which are arranged in series, the first cylinder is connected with the mounting portion, the outer diameter of the first cylinder is larger than that of the second cylinder, and the second cylinder is used for sleeving the stator core.

10. The bearing mount of claim 9, wherein the outer wall surface of the second cylinder is provided with a groove for storing an adhesive for bonding the stator core.

11. The bearing mount of claim 9, wherein the side plate portion is disposed around the body, the side plate portion for encasing a yoke portion of a rotor mounted to the bearing mount.

12. An external rotor motor, characterized by comprising a stator assembly, a rotor assembly and the bearing mounting seat of any one of claims 1-11, wherein the stator assembly is mounted on the body, and the rotor assembly is rotatably connected with the body through a rotating shaft.

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