CN217362698U - Take brushless motor's roast all-in-one that evaporates - Google Patents

Abstract

The utility model discloses a take brushless motor's roast all-in-one that evaporates, including brushless motor and baffle, mainly for improving the sealed after the brushless motor installation in this scheme, improve mainly based on two points, the first point: the rotary connecting position of the rotor shaft is moved to the upper side of the rotor assembly, the rotor shaft is rotatably installed through a first bearing in the front support, and a sealing ring is installed in the front support to achieve dynamic sealing of the rotor shaft. And a second point: a fixed seat is formed on the front support, and a sealing sleeve is mounted on the top end portion of the fixed seat to achieve sealing of the end face. This brushless motor passes through the mount pad in the after-poppet and fixes with the baffle, simple to operate. During the use, in the steam that reveals along the rotor shaft flows to the fixing base, can't reveal outside the fixing base under the sealed of seal cover, the steam that continues the downward flow receives the sealed of sealing washer, can't lead to the fact the influence to rotor subassembly etc. in preceding, the rear support encloses into the space, and the brushless motor operation in the roast all-in-one of steaming is more stable.

Description

Take brushless motor's roast all-in-one that evaporates

Technical Field

The utility model relates to a evaporate roast technical field, concretely relates to take brushless motor evaporate roast all-in-one.

Background

The brushless motor has a wide application range, for example, in the application of steaming and baking equipment, the brushless motor is often fixed on a partition board in the equipment, the brushless motor drives a rotating shaft to rotate by matching a stator component and a rotor component, etc., and a fan, an impeller, etc. in the equipment are rotated by the rotation of the rotating shaft.

SUMMERY OF THE UTILITY MODEL

In order to solve at least one technical defect, the utility model provides a following technical scheme:

the application document discloses a steaming and baking all-in-one machine with a brushless motor, wherein a partition plate for fixing the brushless motor is arranged in the steaming and baking all-in-one machine, the brushless motor comprises a front support, a rear support, a rotor assembly and a stator assembly, the rotor assembly and the stator assembly are arranged in a cavity defined by the front support and the rear support, and the steaming and baking all-in-one machine also comprises a sealing sleeve, a sealing ring, a first bearing and a second bearing;

the front bracket is provided with a fixed seat, the top end part of the fixed seat is provided with a sealing sleeve, and the sealing sleeve enables the fixed seat and the partition plate to form sealing joint;

a rotor shaft in the rotor assembly penetrates through the front support, the fixed seat and the sealing sleeve, the rotor shaft and the front support are in rotary connection through a first bearing, the rotor shaft and the front support are in sealing joint through a sealing ring, and the tail end of the rotor shaft is in rotary connection with a bearing seat in the rear support through a second bearing;

the rear support comprises a mounting seat which is fixed with the partition plate.

Mainly for improving sealed after brushless motor installs in this scheme, improve mainly based on two points, first point: the rotary connecting position of the rotor shaft is moved to the upper side of the rotor assembly, the rotor shaft is rotatably installed through a first bearing in the front support, and a sealing ring is installed in the front support to achieve dynamic sealing of the rotor shaft. And a second point: a fixed seat is formed on the front support, and a sealing sleeve is mounted on the top end portion of the fixed seat to achieve sealing of the end face. This brushless motor passes through the mount pad in the after-poppet and fixes with the baffle, simple to operate. During the use, in the steam that reveals along the rotor shaft flows to the fixing base, can't reveal outside the fixing base under the sealed of seal cover, the steam that continues the downward flow receives the sealed of sealing washer, can't lead to the fact the influence to rotor subassembly etc. in preceding, the rear support encloses into the space, and the brushless motor operation in the roast all-in-one of steaming is more stable.

Further, the stator assembly comprises a stator, a framework and a circuit board, the circuit board is arranged at the bottom of the framework, and the framework is sleeved on the bearing seat;

the rotor subassembly includes rotor shell, cyclic annular magnet, fixed cover, spring and rotor shaft, the magnet is located the intracavity of slot form rotor shell just the skeleton is located the ring mouth of magnet, the downthehole fixed cover that sets up of opening in the middle of the rotor shell terminal surface, set up the spring between fixed cover and the below bearing frame, the rotor shaft passes skeleton, fixed cover, fore-stock and rotor shaft and fixed cover interference fit in proper order. The components of the stator assembly and the rotor assembly are basically consistent with the conventional components. The difference lies in, adopts fixed cover to realize the fixed of rotor shaft and slot-shaped rotor shell in this scheme to increase spring promotion buffer capacity, help reducing the noise that rotor shaft vibration produced.

Furthermore, a hole is formed in the bearing seat along the axial direction, a bearing II is arranged in the hole, the tail end of the spring is positioned in the hole of the bearing seat, and the top end of the spring is connected with the fixed sleeve.

Furthermore, through holes are axially formed in the middle positions of the fixed seat and the front support for the rotor shaft to pass through, an embedded groove is formed in the bottom surface of the sealing sleeve along the circumferential direction, and the sealing sleeve is sleeved on the end portion of the fixed seat through the embedded groove;

the sealing ring is arranged at the hole opening of the through hole of the front support, and a gasket is fixed above the sealing ring.

Adopt the mounting structure of seal cover on the fixing base with the caulking groove cover in this scheme, it is more convenient to assemble. For the sealing ring, a gasket is added to press the sealing ring, so that the stability of the abutting of the sealing ring and the rotor shaft is improved. An X-shaped seal ring may be selected.

Further, set up the annular in the fore-stock through-hole of sealing washer below, bearing one is located in the annular, bearing one below sets up the pressure claw, the periphery wall of bearing one is globular, the groove wall of bearing one top butt and the face of the pressure claw of below butt are the arc surface in order to laminate mutually, and the design of sphere and arc surface helps spacing bearing one of multiple spot, improves stability, adopts in addition to press the claw to help realizing the laminating of sphere and arc surface. The press jaw may also be referred to in the art as a spring washer.

Further, the through hole at the bottom end of the front support is in a flaring shape, the orifice of the through hole is fixed with the gland, the gland and a space above the gland form an annular groove, and a felt pad is arranged in the annular groove above the pressing claw. The felt pad is added to press the pressing claw, so that the stability is improved.

Further, the rear support comprises a first end cover portion, a first frame rod, an annular shell, a mounting seat and a bearing seat, the first frame rod is arranged on the first end cover portion at intervals of the periphery of the first end cover portion, the first frame rod is L-shaped, the transverse end of the first frame rod is connected with the first end cover portion, the shell is arranged in a space enclosed by the longitudinal ends of the first frame rod, the rotor assembly is located in a cavity of the shell, and the mounting seat is arranged at the longitudinal end of the first frame rod. The rear support adopts a frame-like structure, so that heat dissipation is facilitated, the weight is reduced, the first end cover part and the shell play a role in protection, and the first frame rod is connected with the shell and the first end cover part to form the rear support.

Further, the front support comprises a second end cover part and a second frame rod, the second frame rod is arranged at the periphery of the second end cover part at intervals and connected with the longitudinal end of the first frame rod, the front support is of a similar frame structure, heat dissipation is facilitated, weight is reduced, the through holes are formed in the second end cover part to install sealing rings, bearings and the like, the second end cover part supports the fixing seat, and the second frame rod is in butt joint with the rear support.

Furthermore, the connecting end parts of the second hack lever and the first hack lever are respectively provided with a connecting hole I; and the mounting seat is provided with a second connecting hole. During assembly, the first frame rod and the second frame rod are fixedly butted and fixed with the mounting seat and the surface to be butted through fasteners such as bolts, screws and the like, and the assembly is convenient.

Furthermore, the front support and the fixed seat are integrally formed, and the rear support is integrally formed, so that the assembling procedures are reduced.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the utility model discloses improve brushless motor's in the roast all-in-one of steaming and steaming structure, help improving the stability of leakproofness and motor.

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 description of the embodiments 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 without creative efforts.

Fig. 1 is a schematic view of the entire structure of the present brushless motor in embodiment 1;

fig. 2 is a schematic view of the entire structure of the present brushless motor in embodiment 1;

FIG. 3 is a schematic structural view of the rear bracket;

FIG. 4 is a schematic structural view of a rear bracket in a cross-sectional state;

FIG. 5 is a schematic structural view of the front bracket and the fixing base;

FIG. 6 is a schematic view of a mounting structure of a first bearing, a sealing ring and a sealing sleeve on a front support in a section state;

FIG. 7 is a schematic view of a rotor assembly construction;

FIG. 8 is a schematic view of a stator assembly configuration;

fig. 9 is a schematic sectional view of a brushless motor;

FIG. 10 is a schematic view of a structure for fixing the brushless motor to the partition plate;

wherein the reference numerals are:

1. a front bracket; 2. a rear bracket; 3. a rotor assembly; 4. a fixed seat; 5. sealing sleeves; 6. a stator assembly; 7. a seal ring; 8. a gasket; 9. a felt pad; 10. pressing claws; 11. a gland; 12. a first bearing; 13. a second bearing; 14. a fastener; 15. a partition plate;

101. a second end cover part; 102. a second frame rod; 103. a first connecting hole;

201. a first end cover part; 202. a first frame rod; 203. a housing; 204. a mounting seat; 205. a bearing seat; 206. a second connecting hole;

301. a rotor case; 302. a rotor shaft; 303. fixing a sleeve; 304. a spring; 305. a magnet;

601. a framework; 602. a stator; 603. a circuit board.

Detailed Description

The invention will be further explained with reference to the drawings and the specific embodiments.

Example 1

As shown in fig. 1, fig. 2 and fig. 10, in this embodiment, the steaming and baking integrated machine with the brushless motor includes a brushless motor and a partition plate 15, the brushless motor includes a front bracket 1, a rear bracket 2, a rotor assembly 3, a stator assembly 6, a first bearing, a second bearing, a fixing seat 4, a sealing sleeve 5 and a sealing ring, and the rotor assembly 3 and the stator assembly 6 are installed in a cavity enclosed by the front bracket 1 and the rear bracket 2.

In this embodiment, as shown in fig. 7, the rotor assembly 3 includes a rotor shell 301, a ring magnet 305, a fixing sleeve 303, and a spring 304. The magnet 305 is fixed in the cavity of the groove-shaped rotor shell 301, the fixing sleeve 303 is embedded in a hole formed in the middle of the end face of the rotor shell 301, and the rotor shaft 302 passes through the fixing sleeve and is fixed into a whole, such as bonding and fixing. The spring 304 is fitted over the rotor shaft. The rotation shaft is rotated by the rotor case.

As shown in fig. 8 and 9, the stator assembly 6 includes a stator 602, a frame 601, and a circuit board 603, the circuit board 603 is fixed to the bottom of the frame 601 by screws, and the stator 602 is fixed to the frame 601.

As shown in fig. 1, 3 and 4, the rear bracket 2 includes a first end cover portion 201, a first frame rod 202, an annular housing 203, a mounting seat 204 and a bearing seat 205, wherein the first end cover portion 201 is integrally formed with the bearing seat 205, and a second oil-containing bearing 13 is mounted in a hole formed in the center of the bearing seat 205. The periphery of the end cover part I201 is uniformly and integrally formed with three frame rods I202 at intervals. The first hack lever 202 is L-shaped, the transverse end of the first hack lever 202 is connected with the first end cover part 201 and is integrally formed, the annular shell 203 is integrally formed in a space surrounded by the longitudinal end of the first hack lever 202, and a gap exists between the annular shell 203 and the first end cover part 201 below so as to facilitate heat dissipation. The top of the longitudinal end of the first frame rod 202 is integrally formed with a mounting seat 204, and the mounting seat 204 is formed with a second connecting hole 206 in a penetrating manner. The upper part of the longitudinal end of the first hack lever 202 is penetrated to form a threaded connecting hole 103.

As shown in fig. 1, 5 and 6, the front bracket 1 includes a second end cover portion 101 and a second rack bar 102, three second rack bars 102 are uniformly and integrally formed around the second end cover portion 101, and a first connecting hole 103 is formed at an end of the second rack bar 102 in a penetrating manner.

In this embodiment, a through hole is formed in the middle of the second end cover portion 101 of the front bracket 1, a fixing seat 4 is formed on the top surface of the second end cover portion 101, the through hole in the center of the fixing seat 4 corresponds to the through hole in the middle of the second end cover portion 101, a sealing sleeve 5 is sleeved on the top end of the fixing seat 4, an embedded groove is formed in the bottom surface of the sealing sleeve 5 along the circumferential direction, the sealing sleeve 5 is sleeved on the end portion of the fixing seat 4 through the embedded groove, and when the brushless motor is installed, the sealing of the end surface is achieved through the sealing sleeve.

And a sealing ring 7 is arranged on the second end cover part 101 of the front support 1 below the sealing sleeve 5, namely, the orifice of the through hole on the top surface of the second end cover part of the front support is flared, an X-shaped sealing ring 7 is arranged at the orifice, a gasket 8 is arranged above the sealing ring 7, and the gasket 8 is in interference fit with the orifice wall so as to press the sealing ring 7 by the gasket 8. The rotor shaft passes through from the sealing ring in the rotor assembly, and dynamic sealing is carried out in the rotation process.

A bearing I12 is installed in a through hole of a front support end cover part II 101 below the sealing ring 7, specifically, a flared hole is formed in the through hole of the bottom surface of the front support end cover part II 101, a gland 11 is fixed at the hole, the gland 11 and a hole above the gland enclose a ring groove, and an oil-containing bearing I12 is installed in the ring groove. And a pressing claw 10 is arranged below the bearing I12, the peripheral wall of the bearing I12 is spherical, and the surfaces of the groove wall abutted against the upper part of the bearing I12 and the pressing claw 10 abutted against the lower part are both arc surfaces so as to be attached to each other. In this embodiment, a felt pad 9 is further installed in the ring groove, and the felt pad is used for pressing the pressing claw in a ring shape.

As shown in fig. 1-9, when assembled, the backbone 601 of the stator assembly 6 is sleeved over the bearing housing 205 in the rear bracket 2, and the stator assembly 6 is located within the cavity of the rotor shell 301, and the rotor shell 301 is located within the annular opening of the annular housing 203 in the rear bracket 2. The head end of the rotor shaft 302 sequentially penetrates through the first bearing 12, the sealing ring 7, the fixed seat 4 and the sealing ring 7, and is in running fit with the second end cover part 101 of the front support 1 through the first bearing 12, and dynamic sealing is achieved through the sealing ring 7. The tail end of the rotor shaft 302 passes through a hole formed in the center of the framework 601 and is connected with a second bearing 13 in a hole of the lower bearing seat 205. The spring 304 is sleeved on the rotor shaft 302, the head end of the spring 304 abuts against the upper fixing sleeve 303, and the tail end of the spring 304 extends into the hole of the lower bearing seat 205 to be fixed.

The first frame bar 202 corresponds to the first connecting hole 103 on the second frame bar 102, and then the bolt fastening piece 14 is screwed in to fix the front and rear brackets into a whole.

When the brushless motor is installed on the partition plate, as shown in fig. 10, when the brushless motor is fixedly butted with the upper partition plate 15 of the integrated steaming and baking oven, the head end of the rotor shaft penetrates through the upper hole of the partition plate 15 to abut against the face of the partition plate by the end face of the sealing sleeve, and the brushless motor is installed by penetrating the bolt fastener 14 and the like through the first connecting hole of the installation seat 204 and fixing the bolt fastener with the partition plate.

During the use, steam etc. that the rotor shaft revealed down get into in the fixing base through-hole, under the sealed effect of seal cover, steam can't reveal from the butt department of fixing base and baffle. When steam downward flow, under the sealing effect of sealing washer, steam can't get into in the space that the front and back support encloses, under the double seal, avoid steam etc. to reveal and cause the influence to stator, circuit board etc. in the motor.

Above only the utility model discloses an it is preferred embodiment, the utility model discloses a scope of protection not only limits in above-mentioned embodiment, and the all belongs to the utility model discloses a technical scheme under the thinking all belongs to the utility model discloses a scope of protection. It should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.

Claims (10)

1. The steaming and baking integrated machine is characterized by further comprising a sealing sleeve, a sealing ring, a first bearing and a second bearing;

the front bracket is provided with a fixed seat, the top end part of the fixed seat is provided with a sealing sleeve, and the sealing sleeve enables the fixed seat and the partition plate to form sealing joint;

a rotor shaft in the rotor assembly penetrates through the front support, the fixed seat and the sealing sleeve, the rotor shaft and the front support are in rotary connection through a first bearing, the rotor shaft and the front support are in sealing joint through a sealing ring, and the tail end of the rotor shaft is in rotary connection with a bearing seat in the rear support through a second bearing;

the rear support comprises a mounting seat which is fixed with the partition plate.

2. The steaming and baking all-in-one machine with the brushless motor as claimed in claim 1, wherein: the stator assembly comprises a stator, a framework and a circuit board, wherein the circuit board is arranged at the bottom of the framework, and the framework is sleeved on the bearing seat;

the rotor subassembly includes rotor shell, cyclic annular magnet, fixed cover, spring and rotor shaft, the magnet is located the intracavity of slot form rotor shell just the skeleton is located the ring mouth of magnet, the downthehole fixed cover that sets up of opening in the middle of the rotor shell terminal surface, set up the spring between fixed cover and the below bearing frame, the rotor shaft passes skeleton, fixed cover, fore-stock and rotor shaft and fixed cover interference fit in proper order.

3. The steaming and baking all-in-one machine with the brushless motor as claimed in claim 2, wherein: a hole is formed in the bearing seat along the axial direction, a second bearing is arranged in the hole, the tail end of the spring is located in the bearing seat hole, and the top end of the spring is connected with the fixing sleeve.

4. The steaming and baking all-in-one machine with the brushless motor as claimed in claim 1, characterized in that: through holes are axially formed in the middle positions of the fixed seat and the front support to allow the rotor shaft to penetrate through, an embedded groove is formed in the bottom surface of the sealing sleeve along the circumferential direction, and the sealing sleeve is sleeved on the end portion of the fixed seat through the embedded groove;

the sealing ring is arranged at the hole opening of the through hole of the front support, and a gasket is fixed above the sealing ring.

5. The steaming and baking all-in-one machine with the brushless motor as claimed in claim 1, wherein: set up the annular in the fore-stock through-hole of sealing washer below, the bearing is located in the annular, the bearing below sets up presses the claw, the periphery wall of bearing one is globular, the groove wall of a bearing top butt and the face of pressing the claw of below butt are the arc surface in order to laminate mutually.

6. The steaming and baking all-in-one machine with the brushless motor as claimed in claim 5, wherein: the front support bottom through-hole is flaring and the fixed gland in drill way department, the gland forms the annular rather than the space that the space encloses above it, set up the felt pad in the annular above the pressure claw.

7. The steaming and baking all-in-one machine with the brushless motor as claimed in claim 1, wherein: the rear support comprises a first end cover portion, a first hack lever, an annular shell, a mounting seat and a bearing seat, wherein the first end cover portion is provided with the bearing seat, the first end cover portion is arranged at the periphery of the first end cover portion at intervals, the first hack lever is L-shaped, the transverse end of the first hack lever is connected with the first end cover portion, the shell is arranged in a space enclosed by the longitudinal end of the first hack lever, the rotor assembly is located in the cavity of the shell, and the mounting seat is arranged at the longitudinal end of the first hack lever.

8. The steaming and baking all-in-one machine with the brushless motor as claimed in claim 7, wherein: the front support comprises a second end cover part and a second frame rod, the second frame rod is arranged at the periphery of the second end cover part at intervals, and the second frame rod is connected with the longitudinal end of the first frame rod.

9. The steaming and baking all-in-one machine with the brushless motor as claimed in claim 8, wherein: the connecting end parts of the second hack lever and the first hack lever are provided with a first connecting hole; and a second connecting hole is formed in the mounting seat.

10. The steaming and baking all-in-one machine with the brushless motor as claimed in claim 7, wherein: the front support and the fixing seat are integrally formed, and the rear support is integrally formed.

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