CN212935719U - Integrated driven fan coil permanent magnet synchronous motor - Google Patents

Abstract

The utility model discloses an integrated drive fan coil permanent magnet synchronous motor, which comprises a shell, a stator and a rotor, wherein the shell is internally provided with an installation cavity, the stator and the rotor are arranged in the installation cavity, and a rotating shaft of the rotor penetrates through the installation cavity and extends out from two ends of the shell; the fan coil permanent magnet synchronous motor further comprises a driver PCB, and the driver PCB is arranged in the installation cavity and used for variable frequency driving of the fan coil permanent magnet synchronous motor. The driver PCB is arranged in the mounting cavity, the fan coil permanent magnet synchronous motor forms an integrated permanent magnet motor with a variable frequency driver, the permanent magnet motor is combined with the frequency converter, the frequency converter and the motor do not need to be connected additionally, and the operation is convenient; meanwhile, the position of the frequency converter does not need to be independently arranged, the installation space of a client is saved, the size of the driver PCB is small, the reduction of the overall size of the fan coil permanent magnet synchronous motor is facilitated, the space utilization rate is improved, the use efficiency of the client is improved, and the fan coil permanent magnet synchronous motor is suitable for popularization and application.

Description

Integrated driven fan coil permanent magnet synchronous motor

Technical Field

The utility model belongs to the technical field of the motor for the fan coil, especially, relate to an integrated driven fan coil PMSM.

Background

The fan coil is the terminal product of air conditioner ideal, and the fan passes through the coil with indoor or outdoor air and heats or cools off, and then sends into indoorly after the fan is handled, makes indoor temperature can adjust according to the demand of oneself to satisfy people's travelling comfort requirement. The core operation part of the fan coil is a fan and a motor, the motor for the fan coil in the prior art is an alternating current asynchronous motor, more than 40% of electric energy consumption is consumed by the motor, power frequency noise is prominent during operation, and the motor needs to be adjusted by matching with a frequency converter, but the frequency converter is large in size and does not have enough position installation; and the frequency converter has low protection level and cannot realize water resistance, dust resistance and pollution resistance, so the fault rate is high. In recent years, a permanent magnet motor is also used as a motor for a fan coil in the market, so that the motor efficiency can be improved, but the frequency converter is still inconvenient to install, and the popularization and the application are influenced.

The above description is included in the technical recognition scope of the inventors, and does not necessarily constitute the prior art.

SUMMERY OF THE UTILITY MODEL

In order to solve the problem, the utility model aims at providing an integrated driven fan coil PMSM, PMSM combines as an organic whole with the converter, effectively improves motor efficiency, and whole small moreover saves installation space, and simple to use is convenient, and the practicality is strong.

In order to realize the above object, the utility model provides an integrated driven fan coil PMSM, including shell, stator and rotor, the shell is inside to have the installation cavity, the stator with the rotor set up in the installation cavity, just the pivot of rotor is run through the installation cavity and by stretch out at the both ends of shell, fan coil PMSM still includes driver PCB board, driver PCB board set up in the installation cavity, be used for fan coil PMSM's frequency conversion drive.

In one example, the casing comprises a motor casing and an end cover, wherein one end of the motor casing is open, the end cover is connected to the motor casing and closes the opening, and the motor casing and the end cover jointly enclose the mounting cavity; the stator with the rotor install in the motor casing, driver PCB board install in the end cover is inboard, the hole of stepping down has been seted up on the driver PCB board, the end cover hole has been seted up to the end cover, pivot one end is passed the hole of stepping down with the end cover hole stretches out the shell.

In one example, the driver PCB board is potted within the end cap by a potting compound.

In one example, the housing further includes a potting overflow prevention member, the potting overflow prevention member includes an overflow prevention pipe, the driver PCB board is installed in the end cover is inboard, the potting overflow prevention member set in the end cover is inboard end cover hole department, just the overflow prevention pipe passes the hole of stepping down and orientation the inboard protrusion of end cover in the driver PCB board, in order to prevent the potting glue flow passes through the end cover hole flows out the end cover.

In one example, the fan coil permanent magnet synchronous motor further comprises a bearing, an end cover mounting groove is arranged on the inner side of the end cover and surrounds the end cover hole, the bearing is mounted in the end cover mounting groove, and the end of the rotating shaft is supported on the end cover through the bearing;

the embedment anti-overflow piece still include along radial outside protrusion set up in the annular splice bar of anti-overflow pipe one end, the annular splice bar connect in end cover mounting groove periphery the inside wall of end cover, in order to incite somebody to action the embedment anti-overflow piece install in the end cover is inboard and shelter from the end cover mounting groove.

In one example, the outer part of the end cover is convexly provided with a heat dissipation rib.

In one example, the circumferential outer side of the stator is provided with at least one tangent plane, the stator is installed in the motor casing, and a ventilation gap is formed between the tangent plane and the inner side wall of the motor casing.

In one example, the motor casing comprises a cylinder body with two open ends and a ventilation cover connected to the cylinder body, wherein the open end at one end of the cylinder body is the opening of the motor casing, and the ventilation cover closes the open end at the other end of the cylinder body; the ventilation cover hole has been seted up to the ventilation cover, the pivot is kept away from the other end of end cover passes the ventilation cover hole stretches out the shell.

In one example, the vent cover includes a heat sink attached to the barrel and a support attached to a side of the heat sink facing away from the barrel; the heat dissipation piece is of a hollow structure, and a heat dissipation gap is formed between the support piece and the heat dissipation piece in the axial direction.

In one example, the fan coil permanent magnet synchronous motor further comprises a motor base, the motor base comprises a U-shaped bracket and a motor connecting ring, and motor supporting ports are formed in vertical plates on two sides of the U-shaped bracket; the two motor connecting rings are respectively sleeved at the outer end of the end cover and the outer end of the ventilation cover, and the two motor connecting rings are respectively fixedly connected with the two motor supporting openings, so that the two ends of the shell are supported on the motor base.

Through the utility model provides an integrated driven fan coil PMSM can bring following beneficial effect:

1. the driver PCB is arranged in the mounting cavity, the fan coil permanent magnet synchronous motor forms an integrated permanent magnet synchronous motor with a variable frequency driver, and the permanent magnet synchronous motor is combined with the frequency converter, so that the motor efficiency is effectively improved, the frequency converter and the motor do not need to be additionally connected, and the operation and the use of a client are simple and convenient; simultaneously need not arrange the position alone for the converter, save customer's installation space, the small of driver PCB board is favorable to reducing fan coil PMSM's whole volume moreover, further reduces the space and occupies, improves space utilization, improves customer's availability factor, and the practicality is strong, is fit for popularizing and applying.

2. Through set up the hole of stepping down on driver PCB board to make the pivot can pass and wear out motor housing and do not have the fender, thereby can install driver PCB board integration in the end cover inboard and avoid interfering the pivot and rotate, space utilization is high, guarantees the reliability of driver PCB board installation, and fan coil permanent magnet synchronous motor's overall structure is compact, and the volume is littleer, saves installation space, and the practicality is strong.

3. The driver PCB board uses the pouring sealant embedment, and the pouring sealant is high temperature resistant, and surface leakage is resistant, can effectively protect driver PCB board, improves the protection level of converter, reduces the fault rate, and the life of driver PCB board is effectively prolonged to the abominable production environment of adaptable dust more, humidity, high temperature, and the practicality is strong.

Drawings

The accompanying drawings, which are described herein, serve to provide a further understanding of the invention and constitute a part of this specification, and the exemplary embodiments and descriptions thereof are provided for explaining the invention without unduly limiting it. In the drawings:

fig. 1 is an exploded view of an integrated drive fan coil permanent magnet synchronous motor of the present invention;

fig. 2 is a schematic perspective view of an integrated drive fan coil permanent magnet synchronous motor according to the present invention;

FIG. 3 is a cross-sectional view of FIG. 2;

fig. 4 is a schematic perspective view of the potting overflow prevention member of the present invention;

fig. 5 is a schematic perspective view of the stator of the present invention;

fig. 6 is a schematic perspective view of the ventilation cover of the present invention;

fig. 7 is a schematic perspective view of another perspective view of the ventilation cover of the present invention;

FIG. 8 is a front view of the driver PCB of the present invention;

fig. 9 is a schematic perspective view of the end cap of the present invention;

fig. 10 is a schematic perspective view of another perspective view of the end cap according to the present invention.

In the figure, 1-shell, 11-installation cavity, 12-motor shell, 121-cylinder, 122-ventilation cover, 1221-ventilation cover hole, 1222-heat radiation piece, 1223-support piece, 1224-ventilation cover installation groove, 13-end cover, 131-end cover hole, 132-heat radiation rib, 133-end cover installation groove, 14-encapsulation anti-overflow piece, 141-overflow prevention pipe, 142-annular connecting rib, 2-stator, 21-section, 3-rotor, 4-rotating shaft, 5-driver PCB board, 51-abdication hole, 6-bearing, 7-motor base, 71-U-shaped bracket, 711-motor support port, 72-motor connecting ring

Detailed Description

In order to more clearly explain the overall concept of the present invention, the following detailed description is given by way of example in conjunction with the accompanying drawings.

In the description of the present invention, it is to be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present invention.

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. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; the connection can be mechanical connection, electrical connection or communication; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the present application, unless expressly stated or limited otherwise, the first feature may be directly on or directly under the second feature or indirectly via intermediate members. In the description herein, references to the description of the terms "an aspect," "some aspects," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the aspect or example is included in at least one aspect or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same solution or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more aspects or examples.

As shown in fig. 1 to 10, an embodiment of the present invention provides an integrated drive fan coil permanent magnet synchronous motor, which includes a housing 1, a stator 2 and a rotor 3, wherein the housing 1 has an installation cavity 11 therein, the stator 2 and the rotor 3 are disposed in the installation cavity 11, and a rotating shaft 4 of the rotor 3 penetrates through the installation cavity 11 and extends out from two ends of the housing 1; the fan coil permanent magnet synchronous motor further comprises a driver PCB (printed circuit board) 5, and the driver PCB 5 is arranged in the installation cavity 11 and used for variable frequency driving of the fan coil permanent magnet synchronous motor. The driver PCB 5 is arranged in the mounting cavity 11, the fan coil permanent magnet synchronous motor forms an integrated permanent magnet synchronous motor with a variable frequency driver, and the permanent magnet synchronous motor is combined with the frequency converter, so that the motor efficiency is effectively improved, the frequency converter and the motor do not need to be additionally connected, and the operation and the use of a client are simple and convenient; simultaneously need not arrange the position alone for the converter, save customer's installation space, driver PCB board 5's is small moreover, is favorable to reducing fan coil PMSM's whole volume, further reduces the space and occupies, improves space utilization, improves customer's availability factor, and the practicality is strong, is fit for popularizing and applying.

Specifically, the housing 1 comprises a motor casing 12 and an end cover 13, wherein one end of the motor casing 12 is open, the end cover 13 is connected to the motor casing 12 and seals the opening, and the motor casing 12 and the end cover 13 jointly enclose an installation cavity 11; stator 2 and rotor 3 install in motor casing 12, and driver PCB board 5 is installed in end cover 13 inboard, has seted up the hole of stepping down 51 on the driver PCB board 5, and end cover hole 131 has been seted up to end cover 13, and 4 one ends of pivot are passed the hole of stepping down 51 and end cover hole 131 and are stretched out shell 1. Through set up hole 51 of stepping down on driver PCB board 5, make pivot 4 can wear out shell 1 and do not have the fender to can install driver PCB board 5 integration in end cover 13 inboard and avoid interfering pivot 4 and rotate, space utilization is high, guarantees the reliability of driver PCB board 5 installation, and fan coil permanent magnet synchronous motor's overall structure is compact, and the volume is littleer, saves installation space, and the practicality is strong.

Specifically, driver PCB board 5 is by the potting adhesive embedment in end cover 13, the potting adhesive solidifies the back completely, driver PCB board 5 keeps apart with the external world, it is sealed effectual, can prevent dust, liquid etc. get into driver PCB board 5 and damage the component, and the potting adhesive is high temperature resistant, resistant surface electric leakage, can effectively protect driver PCB board 5, improve the protection grade of converter, reduce the fault rate, adaptable dust is more, moist, the abominable production environment of high temperature, effectively prolong driver PCB board 5's life, therefore, the clothes hanger is strong in practicability. In one embodiment, the potting adhesive may be an epoxy, polyurethane, or silicone resin.

Specifically, the housing 1 further includes a potting overflow preventing member 14, the potting overflow preventing member 14 includes an overflow preventing pipe 141, the driver PCB board 5 is mounted inside the end cover 13, the potting overflow preventing member 14 is disposed at the end cover hole 131 inside the end cover 13, and the overflow preventing pipe 141 passes through the relief hole 51 and protrudes out of the driver PCB board 5 toward the inside of the end cover 13; when the potting adhesive encapsulates the driver PCB 5, the anti-overflow pipe 141 can block the potting adhesive from flowing into the end cap hole 131 to prevent the potting adhesive from flowing out of the end cap 13 through the end cap hole 131, so that the driver PCB 5 can be effectively encapsulated in the potting adhesive, the leaked potting adhesive is prevented from interfering the rotation of the rotating shaft 4, and the whole structure of the fan coil permanent magnet synchronous motor is prevented from being damaged by the flowing potting adhesive.

In one embodiment, the anti-overflow pipe 141 is coaxially disposed with the end cap hole 131 of the end cap 13, and the outer diameter of the anti-overflow pipe 141 matches the inner diameter of the relief hole 51. The overflow preventing pipe 141 may be integrally formed inside the end cap 13.

Specifically, the fan coil permanent magnet synchronous motor further comprises a bearing 6, an end cover mounting groove 133 is formed in the inner side of the end cover 13 around an end cover hole 131, the bearing 6 is mounted in the end cover mounting groove 133, and one end of the rotating shaft 4 is supported on the end cover 13 through the bearing 6; the rotating shaft 4 is rotatably supported through the bearing 6, so that the rotating friction resistance of the rotating shaft 4 is effectively reduced, the rotating heat of the rotating shaft 4 is reduced, the rotating speed of the rotating shaft 4 is favorably improved, the performance of the fan coil permanent magnet synchronous motor is better, and the practicability is strong.

The potting overflow preventing member 14 further includes an annular coupling rib 142 protruded radially outward at one end of the overflow preventing pipe 141, the annular coupling rib 142 being coupled to an inner sidewall of the end cap 13 at the outer circumference of the end cap mounting groove 133 to mount the potting overflow preventing member 14 inside the end cap 13 and shield the end cap mounting groove 133. Driver PCB board 5 and bearing 6 keep apart separately through embedment anti-overflow piece 14, can prevent that the casting glue from flowing into in end cover mounting groove 133 and damaging bearing 6 when the embedment, can also prevent that the dust from getting into in bearing 6, bearing 6 obtains the protection, prolongs bearing 6's life, effectively guarantees driver PCB board 5's seal structure moreover, makes things convenient for the bearing 6 to install simultaneously, and the practicality is strong.

Specifically, the outside protrusion of end cover 13 is provided with heat dissipation muscle 132, and heat dissipation muscle 132 increases the area of contact of end cover 13 and outside air, and end cover 13's cooling efficiency is higher, and is better to PMSM and driver PCB board 5's cooling effect, guarantees driver PCB board 5's reliable and stable work, is favorable to prolonging driver PCB board 5's life. In one embodiment, the outer side wall of the end cap 13 is vertically protruded and a plurality of heat dissipating ribs 132 are uniformly spaced.

Specifically, the circumferential outer side of the stator 2 is provided with at least one tangent plane 21, the stator 2 is installed in the motor casing 12, and a ventilation gap is formed between the tangent plane 21 and the inner side wall of the motor casing 12. When fan coil PMSM work produced the heat, inside hot-air can be through ventilation gap and external circulation to accelerate thermal circulation transmission, make installation cavity 11 can effectively dispel the heat, thereby improve fan coil PMSM's working property, extension fan coil PMSM's life, the practicality is strong. In a specific embodiment, a plurality of tangent planes 21 are uniformly arranged on the outer side of the stator 2 along the circumferential direction at intervals, so that a plurality of ventilation gaps can be formed, circulation convection can be formed in the installation cavity 11, and the heat dissipation effect is better.

Specifically, the motor casing 12 includes a cylinder 121 with two open ends and a ventilation cover 122 connected to the cylinder 121, the open end at one end of the cylinder 121 is the open end of the motor casing 12, and the ventilation cover 122 closes the open end at the other end of the cylinder 121; ventilating cover 122 has seted up ventilating cover hole 1221, and the other end that end cover 13 was kept away from to pivot 4 passes ventilating cover hole 1221 and stretches out shell 1, realizes fan coil permanent magnet synchronous motor's both ends play axle. In one embodiment, a ventilation cover mounting groove 1224 is provided around the ventilation cover hole 1221 inside the ventilation cover 122, a bearing 6 is mounted in the ventilation cover mounting groove 1224, and the other end of the rotation shaft 4 is supported to the ventilation cover 122 by the bearing 6; the both ends of pivot 4 all rotate through bearing 6 and support, effectively reduce the rotational friction resistance of pivot 4, and the atress at 4 both ends of pivot is balanced, is favorable to improving the rotational speed of pivot 4, and the rotation that reduces pivot 4 generates heat, and fan coil PMSM's performance is better, and the practicality is strong.

Specifically, the vent cover 122 includes a heat sink 1222 and a support 1223, the heat sink 1222 is connected to the cylinder 121, and the support 1223 is connected to a side of the heat sink 1222 facing away from the cylinder 121; the heat dissipating member 1222 has a hollow structure, and a heat dissipating gap is formed between the supporting member 1223 and the heat dissipating member 1222 in the axial direction. Inside heat that fan coil PMSM during operation produced can dispel the heat through heat dissipation clearance, during external air got into installation cavity 11 through heat dissipation clearance, form the circulation of air, better radiating effect has, guarantee fan coil PMSM's reliable and stable work, be favorable to prolonging fan coil PMSM's life, support piece 1223 supports radiating piece 1222 moreover, make fan coil PMSM whole more firm, job stabilization nature is higher, therefore, the clothes hanger is strong in practicability.

Specifically, the fan coil permanent magnet synchronous motor further comprises a motor base 7, the motor base 7 comprises a U-shaped bracket 71 and a motor connecting ring 72, and motor supporting ports 711 are formed in vertical plates on two sides of the U-shaped bracket 71; the two motor connecting rings 72 are respectively sleeved on the outer end of the end cover 13 and the outer end of the ventilation cover 122, and the two motor connecting rings 72 are respectively fixedly connected with the two motor supporting ports 711, so that the two ends of the housing 1 are supported on the motor base 7. The U-shaped bracket 71 and the motor connecting ring 72 are simple in structure, easy to implement and low in manufacturing cost, connection strength of the motor base 7 and the shell 1 is effectively guaranteed, and the fan coil permanent magnet synchronous motor can be reliably and fixedly supported, so that stability and reliability of the fan coil permanent magnet synchronous motor are improved, and practicability is high.

The embodiments in the present specification are described in a progressive manner, and the same and similar parts among the embodiments are referred to each other, and each embodiment focuses on the differences from the other embodiments. In particular, for the system embodiment, since it is substantially similar to the method embodiment, the description is simple, and for the relevant points, reference may be made to the partial description of the method embodiment.

The above description is only an example of the present invention, and is not intended to limit the present invention. Various modifications and changes may occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the scope of the claims of the present invention.

Claims (7)

1. An integrated drive fan coil permanent magnet synchronous motor comprises a shell, a stator and a rotor, wherein an installation cavity is formed in the shell, the stator and the rotor are arranged in the installation cavity, and a rotating shaft of the rotor penetrates through the installation cavity and extends out of two ends of the shell; the shell comprises a motor shell and an end cover, one end of the motor shell is provided with an opening, the end cover is connected to the motor shell and seals the opening, and the motor shell and the end cover jointly enclose the installation cavity; the stator and the rotor are arranged in the motor shell, the driver PCB is arranged on the inner side of the end cover, a abdicating hole is formed in the driver PCB, an end cover hole is formed in the end cover, and one end of the rotating shaft penetrates through the abdicating hole and the end cover hole and extends out of the shell; the driver PCB is encapsulated in the end cover by pouring sealant; the shell still includes embedment anti-overflow spare, the embedment anti-overflow spare includes anti-overflow pipe, embedment anti-overflow spare set up in the end cover is inboard end cover hole department, just anti-overflow pipe passes the hole of stepping down and orientation the inboard protrusion of end cover in driver PCB board, in order to prevent the casting glue passes through the end cover hole flows the end cover.

2. An integrally driven fan coil PMSM according to claim 1, further comprising a bearing, an end cap mounting slot being provided around said end cap hole inside said end cap, said bearing being mounted in said end cap mounting slot, said one end of said shaft being supported to said end cap by said bearing;

the embedment anti-overflow piece still include along radial outside protrusion set up in the annular splice bar of anti-overflow pipe one end, the annular splice bar connect in end cover mounting groove periphery the inside wall of end cover, in order to incite somebody to action the embedment anti-overflow piece install in the end cover is inboard and shelter from the end cover mounting groove.

3. An integrally driven fan coil PMSM according to claim 1, wherein heat sink ribs are provided protruding from the exterior of the end cap.

4. An integrally driven fan coil permanent magnet synchronous motor as recited in claim 1, wherein the circumferentially outer side of the stator is provided with at least one cut surface, the stator is mounted within the motor housing, and a vent gap is formed between the cut surface and an inner side wall of the motor housing.

5. An integrated drive fan coil permanent magnet synchronous motor as recited in any of claims 1-4 wherein the motor housing comprises a cylinder open at both ends and a vent cover connected to the cylinder, the opening at one end of the cylinder being the opening of the motor housing, the vent cover closing the opening at the other end of the cylinder; the ventilation cover hole has been seted up to the ventilation cover, the pivot is kept away from the other end of end cover passes the ventilation cover hole stretches out the shell.

6. An integrated drive fan coil permanent magnet synchronous motor as recited in claim 5, wherein the vent cover comprises a heat sink and a support member, the heat sink being connected to the cartridge body, the support member being connected to a side of the heat sink facing away from the cartridge body; the heat dissipation piece is of a hollow structure, and a heat dissipation gap is formed between the support piece and the heat dissipation piece in the axial direction.

7. The integrated drive fan coil permanent magnet synchronous motor of claim 5, further comprising a motor base, wherein the motor base comprises a U-shaped bracket and a motor connecting ring, and motor support ports are formed on vertical plates on two sides of the U-shaped bracket; the two motor connecting rings are respectively sleeved at the outer end of the end cover and the outer end of the ventilation cover, and the two motor connecting rings are respectively fixedly connected with the two motor supporting openings, so that the two ends of the shell are supported on the motor base.

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