CN210003463U - active vibration damper for linear compressor - Google Patents
active vibration damper for linear compressor Download PDFInfo
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- CN210003463U CN210003463U CN201920382885.4U CN201920382885U CN210003463U CN 210003463 U CN210003463 U CN 210003463U CN 201920382885 U CN201920382885 U CN 201920382885U CN 210003463 U CN210003463 U CN 210003463U
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- linear compressor
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- plate spring
- active vibration
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Abstract
The utility model relates to an kind of initiative damping device for linear compressor, include the initiative damping subassembly that links to each other with linear compressor, initiative damping subassembly includes the initiative motor and installs last leaf spring subassembly and lower leaf spring subassembly at both ends about the initiative motor respectively, the initiative motor includes motor shaft, stator module and the active cell subassembly that sets gradually from inside to outside, stator module includes that interior magnetic pole and embedding install the coil pack on interior magnetic pole periphery wall, the active cell subassembly includes the outer magnetic pole and installs the magnet steel on the inner perisporium of outer magnetic pole, the motor shaft is connected to the linear compressor afterbody after passing lower leaf spring subassembly, interior magnetic pole and last leaf spring subassembly in proper order, the utility model discloses can solve the great problem of the axial mechanical vibration that exists among the prior art in the linear compressor operation, realize that the of linear compressor is general to be used.
Description
Technical Field
The utility model relates to a linear compressor technical field, concretely relates to kind of initiative vibration damper for linear compressor.
Background
The linear compressor has the advantages of high capacity, high pressure, low noise, high efficiency and high reliability, and has -wide application prospect in the relevant fields of military, civil and aerospace and the like.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide kind of initiative vibration damper for linear compressor, the great problem of axial mechanical vibration that the device can solve among the prior art linear compressor operation in-process and exist, realize the general application of linear compressor.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
an active vibration damping device for linear compressor comprises an active vibration damping assembly connected with the linear compressor, wherein the active vibration damping assembly comprises an active motor and an upper plate spring assembly and a lower plate spring assembly which are respectively arranged at the upper end and the lower end of the active motor.
The driving motor comprises a motor shaft, a stator assembly and a rotor assembly which are sequentially arranged from inside to outside; the stator assembly comprises an inner magnetic pole and a coil assembly embedded and installed on the outer peripheral wall of the inner magnetic pole; the rotor component comprises an outer magnetic pole and magnetic steel arranged on the inner peripheral wall of the outer magnetic pole; and the motor shaft sequentially penetrates through the lower plate spring assembly, the inner magnetic pole and the upper plate spring assembly and then is connected to the tail part of the linear compressor. Specifically, the motor shaft is rigidly connected to the linear compressor tail by a connecting rod.
, the upper plate spring assembly and the lower plate spring assembly are respectively located on the upper side and the lower side of the outer magnetic pole, an upper flange is arranged between the upper plate spring assembly and the outer magnetic pole, a lower flange is arranged between the lower plate spring assembly and the outer magnetic pole, the upper plate spring assembly, the upper flange, the outer magnetic pole, the lower flange and the lower plate spring assembly are connected to the position through bolts, the bottom of the upper flange is attached to the top of the magnetic steel, and the top of the lower flange is attached to the bottom of the magnetic steel.
, the upper and lower leaf spring assemblies each include a plurality of parallel leaf springs, large spacers disposed between the outer peripheries of adjacent leaf springs, and small spacers disposed between the inner peripheries of adjacent leaf springs.
, a boss is arranged at the middle lower section of the motor shaft, a locking nut is arranged at the middle upper section of the motor shaft, and the inner magnetic pole is located between the locking nut and the boss and connected with the motor shaft through the locking nut and the boss.
, a plurality of grooves are uniformly distributed on the outer peripheral wall of the outer magnetic pole, and a plurality of bolt through holes are arranged on the outer magnetic pole.
, an annular groove is formed in the outer peripheral wall of the inner magnetic pole, an enameled wire outlet is reserved in the axial direction, the coil assembly is installed in the annular groove, and the coil assembly comprises a coil framework and a coil wound on the coil framework.
And , enabling the plate spring to comprise a circular plate and a plurality of molded line grooves uniformly distributed on the circular plate, enabling the molded line grooves to comprise molded line heads, molded line tails, inner molded lines, outer molded lines and grooves, enabling the same ends of the inner molded lines and the outer molded lines to smoothly connect two curves into closed curves through the molded line heads and the molded line tails respectively, enabling the grooves to be located in the middle of the closed curves, enabling the inner molded lines and the outer molded lines to be in Archimedes spiral lines or involute curves, and enabling the molded line heads and the molded line tails to be connection curves formed by connecting multiple sections of circular arcs in an end-to-end mode.
, a shaft mounting hole is formed in the middle of the circular plate, and a plurality of uniformly distributed bolt mounting holes are formed in the periphery of the circular plate.
, the mass of the rotor assembly and the rigidity of the plate spring satisfy the relation
Where m denotes a mass of the mover assembly, k denotes an overall stiffness of the plate spring, and f denotes an operation frequency of the compressor.
, the active vibration damping component is to increase the winding power of the active motor on the basis of the passive vibration damper, and realize the vibration damping function by adjusting the phase and amplitude of the driving voltage of the active vibration damping component and the linear compressor, so as to ensure that the sum of the phases of the driving voltage of the active vibration damping component and the linear compressor is 0.
According to the above technical scheme, initiative damping device arrange the initiative motor on the basis of passive shock absorber, be assisted with motor disturbance power on the basis of passive damping promptly, and through the phase place of adjustment initiative damping device and linear compressor, realize the damping function with less consumption, initiative damping device adopt the built-in structural style of moving magnetic formula coil, form stator module on the annular of magnetic pole reservation including with the coil coiling, the magnet steel bonds to outer magnetic pole inner wall and spacing through the upper and lower flange at both ends, form the active cell subassembly, stator module, active cell subassembly support and fixed with the motor shaft through the leaf spring, can avoid flying wire problem, when fully guaranteeing linear compressor's performance and reliability, effectively reduced the vibration of compressor to possess fundamental frequency and doubling of frequency shock-absorbing function simultaneously, initiative damping device's active cell quality, leaf spring rigidity and operating frequency all adjustable, can satisfy different operating frequency compressor damping problems, the mechanical vibration that linear compressor reciprocating motion produced transmits to the connecting rod of active cell's shock absorber through the connecting rod with compressor rigid connection on, through the reciprocal power motion of assisting the motor has the characteristics such as simple and low power consumption of the utility model.
Drawings
Fig. 1 is a schematic structural diagram of the present invention;
FIG. 2 is a schematic diagram of the structure of the outer pole;
FIG. 3 is a schematic structural view of the leaf spring assembly;
fig. 4 is a schematic view of the installation structure of the present invention.
Wherein:
100. the stator comprises a rotor assembly, 101, an outer magnetic pole, 102, magnetic steel, 1011, a groove, 1012, a bolt through hole, 200, a stator assembly, 201, an inner magnetic pole, 202, a coil, 203, a coil framework, 300, an upper plate spring assembly, 301, a plate spring, 3011, a circular plate, 3012, a shaft mounting hole, 3013, a bolt mounting hole, 3014, a profile head, 3015, a profile tail, 3016, an inner profile, 3017, an outer profile, 3018, a groove, 302, a large gasket, 303, a small gasket, 400, a motor shaft, 401, a locking nut , 402, a gasket , 403, a boss, 404, a locking nut II, 405, a gasket II, 501, an upper flange, 502, a lower flange, 601, a bolt, 602, a nut, 700, a linear compressor, 701, a connecting rod, 702, a power line, 800 and a lower plate spring assembly.
Detailed Description
The utility model is explained in steps with the following drawings:
A active vibration damping device for a linear compressor, as shown in FIGS. 1-4, comprises an active vibration damping assembly connected to a linear compressor 700. the active vibration damping assembly comprises an active motor and upper and lower leaf spring assemblies 300 and 800 installed at upper and lower ends of the active motor, respectively.
The active motor comprises a motor shaft 400, a stator assembly 200 and a rotor assembly 100 which are arranged from inside to outside in sequence; the stator assembly 200 comprises an inner magnetic pole 201 and a coil assembly embedded and installed on the outer circumferential wall of the inner magnetic pole 201; the rotor assembly 100 comprises an outer magnetic pole 101 and magnetic steel 102 arranged on the inner circumferential wall of the outer magnetic pole 101; the motor shaft 400 passes through the lower plate spring assembly 800, the inner magnetic pole 201 and the upper plate spring assembly 300 in sequence and then is connected to the tail of the linear compressor. Specifically, the motor shaft 400 is rigidly connected to the rear of the linear compressor 700 by a connecting rod 701. The connecting rod 701 is provided with a screw thread for screwing to the linear compressor 700. The mechanical vibration generated by the reciprocating motion of the linear compressor 700 is transmitted to the mover assembly 100 through the connecting rod 701 rigidly connected to the compressor, and the axial vibration of the linear compressor 700 is offset by the reciprocating motion of the mover assembly 100 and the disturbance force of the motor.
, the upper plate spring assembly 300 and the lower plate spring assembly 800 are respectively located on the upper side and the lower side of the outer magnetic pole 101, the rotor assembly 100 is supported by the plate spring assemblies at the two ends, the upper flange 501 is arranged between the upper plate spring assembly 300 and the outer magnetic pole 101, the lower flange 502 is arranged between the lower plate spring assembly 800 and the outer magnetic pole 101, the upper plate spring assembly 300, the upper flange 501, the outer magnetic pole 101, the lower flange 502 and the lower plate spring assembly 800 are connected to through bolts 601 and nuts 602, the bottom of the upper flange 501 is attached to the top of the magnetic steel 102, the top of the lower flange 502 is attached to the bottom of the magnetic steel 102, the upper end and the lower end of the magnetic steel 102 are limited through the upper flange 501 and the lower flange 502, and the upper flange 501 and the lower flange 502 are limited through the inner wall of the outer magnetic pole 101.
Further , the upper leaf spring assembly 300 and the lower leaf spring assembly 800 each include a plurality of parallel arranged leaf springs 301, a large spacer 302 disposed between the outer peripheries of adjacent leaf springs 301, and a small spacer 303 disposed between the inner peripheries of adjacent leaf springs 301.
, a boss 403 is provided on the middle lower section of the motor shaft 400, a lock nut 401 and a washer 402 are mounted on the middle upper section of the motor shaft 400, and the inner pole 201 is located between the lock nut 401 and the boss 403 and is locked with the motor shaft 400 by the lock nut 401 and the boss 403 and fixed at .
As shown in FIG. 2, a plurality of grooves 1011 are uniformly distributed on the outer circumferential wall of the outer magnetic pole 101, a plurality of bolt through holes 1012 are formed on the outer magnetic pole 101, the outer magnetic pole 101 is formed by machining an electrical bar , the grooves 1011, have a heat dissipation function, the can adjust the mass of the rotor by adjusting the width of the grooves, the bolt through holes 1012 are used for bolts 601 to penetrate, and the bolts 601 and nuts 602 are used for fixedly connecting the rotor assembly, the upper plate spring assembly, the upper flange, the lower flange and the lower plate spring assembly .
, an annular groove is formed in the outer peripheral wall of the inner magnetic pole 201, an enameled wire outlet is formed in the axial direction, the coil assembly is installed in the annular groove, the coil assembly comprises a coil framework 203 and a coil 202 wound on the coil framework 203, and the inner magnetic pole 201 is processed by an electrical bar.
As shown in fig. 3, the plate spring 301 includes a circular plate 3011 and a plurality of profile grooves uniformly distributed on the circular plate 3011, the profile grooves include profile head portions 3014, profile tail portions 3015, inner profile lines 3016, outer profile lines 3017 and grooves 3018, the same ends of the inner profile lines 3016 and the outer profile lines 3017 are smoothly connected into closed curves through the profile head portions 3014 and the profile tail portions 3015, the grooves 3018 are located in the middle of the closed curves, the inner profile lines 3016 and the outer profile lines 3017 are both in the shape of archimedes spirals or involutes, the profile head portions 3014 and the profile tail portions 3015 are both connected into a connecting curve by multiple segments of circular arc head and tail portions, a shaft mounting hole 3012 is formed in the middle of the circular plate 3011, a plurality of bolt mounting holes 3013 uniformly distributed on the outer periphery, the plate spring 301 is manufactured by using a metal plate material having certain characteristics, the plate spring is designed by adjusting the length and distance of the profile line head portions 3016, the head portions 3017, the tail portions 3014 and the tail portions 3015, adjusting the rigidity of the outer profile lines 3014, and reducing concentrated stress of the plate spring when the plate spring is used for preventing the plate spring from being connected by using the plate spring, and the plate spring mounting holes 3012.
, the mass of the mover assembly 100, the stiffness of the plate spring 301 and the operating frequency of the linear compressor 700 are all adjustable, so as to meet the vibration reduction requirements of compressors with different operating frequencies, and the mass of the mover assembly 100 and the stiffness of the plate spring 301 satisfy the relation
Where m denotes a mass of the mover assembly, k denotes an overall stiffness of the plate spring, and f denotes an operation frequency of the compressor.
, the active vibration damping device is characterized in that the active motor winding power is added on the basis of the passive vibration damper, the vibration damping function is realized by adjusting the phase and amplitude of the driving voltage of the active vibration damping component and the linear compressor, and the sum of the phases of the driving voltage of the active vibration damping component and the linear compressor is ensured to be 0.
The utility model discloses a concrete assembling process does:
firstly, a magnetic steel 102 is installed on the inner wall of an outer magnetic pole 101, a gap of the magnetic steel 102 is ensured to be aligned with an axial groove of the outer magnetic pole 101, the magnetic steel 102 is axially limited by an upper flange and a lower flange, the magnetic steel 102, an upper flange 501, a lower flange 502 and the outer magnetic pole 101 form a rotor assembly 100, secondly, a coil framework 203 is installed on the inner magnetic pole 201 and coils 202 are wound to form a stator assembly 200, the stator assembly 200 is installed on a motor shaft 400, the lower end of the stator assembly is positioned through a boss 403, the upper end of the stator assembly is fixed through a locking nut and a gasket 402, thirdly, the motor shaft 400 and the stator assembly 200 are assembled in the rotor assembly 100, the upper plate spring assembly 300 and the lower plate spring assembly 800 are sequentially installed at two ends, adjacent plate springs 301 are separated through a large gasket 302 and a small gasket 303, the upper end of the motor shaft 400 penetrates through the upper plate spring assembly 300 and then is connected to a connecting rod 702 and is connected to the tail of a linear compressor 700 through the connecting rod 702, the lower plate spring assembly passes through a locking nut 404 and a gasket 405 after the lower plate spring assembly, the lower plate spring assembly is fixedly connected to a damping assembly , finally, bolts sequentially penetrate through the upper flange, the upper plate assembly, the lower plate assembly and the stator assembly is connected to the stator assembly, the stator assembly is.
The above-mentioned embodiments are only for describing the preferred embodiments of the present invention, and are not intended to limit the scope of the present invention, and various modifications and improvements made by those skilled in the art without departing from the design spirit of the present invention should fall into the protection scope defined by the claims of the present invention.
Claims (10)
- active vibration damper for linear compressor, which comprises active vibration damper connected with linear compressor, wherein the active vibration damper comprises active motor, upper and lower plate spring assemblies respectively mounted on upper and lower ends of the active motor;the driving motor comprises a motor shaft, a stator assembly and a rotor assembly which are sequentially arranged from inside to outside; the stator assembly comprises an inner magnetic pole and a coil assembly embedded and installed on the outer peripheral wall of the inner magnetic pole; the rotor component comprises an outer magnetic pole and magnetic steel arranged on the inner peripheral wall of the outer magnetic pole; and the motor shaft sequentially penetrates through the lower plate spring assembly, the inner magnetic pole and the upper plate spring assembly and then is connected to the tail part of the linear compressor.
- 2. The active vibration damper for linear compressor of claim 1, wherein the upper and lower plate spring assemblies are located at the upper and lower sides of the outer magnetic pole respectively, an upper flange is disposed between the upper plate spring assembly and the outer magnetic pole, a lower flange is disposed between the lower plate spring assembly and the outer magnetic pole, the upper plate spring assembly, the upper flange, the outer magnetic pole, the lower flange and the lower plate spring assembly are connected to by bolts, the bottom of the upper flange is attached to the top of the magnetic steel, and the top of the lower flange is attached to the bottom of the magnetic steel.
- 3. The active vibration damping device for a linear compressor of claim , wherein each of said upper and lower leaf spring assemblies comprises a plurality of leaf springs arranged in parallel, a large spacer arranged between the outer peripheries of the adjacent leaf springs, and a small spacer arranged between the inner peripheries of the adjacent leaf springs.
- 4. The active vibration damper for linear compressor of claim 1, wherein the motor shaft has a boss at its middle-lower section, a lock nut is installed at its middle-upper section, and the inner magnetic pole is located between the lock nut and the boss and connected to the motor shaft through the lock nut and the boss.
- 5. The active vibration damper for linear compressor of claim 1, wherein the outer peripheral wall of said outer magnetic pole has several uniformly distributed grooves and said outer magnetic pole has several bolt through holes.
- 6. The active vibration damper for linear compressor according to claim 1, wherein the outer peripheral wall of the inner magnetic pole is formed with an annular groove, an enameled wire outlet is reserved in the axial direction, the coil assembly is installed in the annular groove, and the coil assembly comprises a coil frame and a coil wound on the coil frame.
- 7. The active vibration damping device for linear compressor, according to claim 3, is characterized in that the leaf spring comprises a circular plate and a plurality of profile grooves uniformly distributed on the circular plate, the profile grooves comprise profile head portions, profile tail portions, inner profiles, outer profiles and grooves, the same ends of the inner profiles and the outer profiles smoothly connect two curves into closed curves through the profile head portions and the profile tail portions, the grooves are located in the middle of the closed curves, the inner profiles and the outer profiles are both in Archimedes spiral line or involute curve shapes, and the profile head portions and the profile tail portions are both smooth transition connection curves formed by connecting multi-segment circular arcs in an end-to-end mode.
- 8. The kind of active vibration damper for linear compressor of claim 7, wherein the circular plate has a shaft mounting hole in the middle and several evenly distributed bolt mounting holes on the periphery.
- 9. active vibration damper for linear compressor as claimed in claim 3, wherein the mass of the mover assembly and the stiffness of the plate spring satisfy the relationWhere m denotes a mass of the mover assembly, k denotes an overall stiffness of the plate spring, and f denotes an operation frequency of the compressor.
- 10. The active vibration damping device for linear compressor of claim 1 wherein the sum of the phases of the active vibration damping assembly and the linear compressor drive voltage is 0.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920382885.4U CN210003463U (en) | 2019-03-25 | 2019-03-25 | active vibration damper for linear compressor |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920382885.4U CN210003463U (en) | 2019-03-25 | 2019-03-25 | active vibration damper for linear compressor |
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| Publication Number | Publication Date |
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| CN210003463U true CN210003463U (en) | 2020-01-31 |
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| CN201920382885.4U Active CN210003463U (en) | 2019-03-25 | 2019-03-25 | active vibration damper for linear compressor |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110005592A (en) * | 2019-03-25 | 2019-07-12 | 中国电子科技集团公司第十六研究所 | A kind of active damper for Linearkompressor |
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2019
- 2019-03-25 CN CN201920382885.4U patent/CN210003463U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110005592A (en) * | 2019-03-25 | 2019-07-12 | 中国电子科技集团公司第十六研究所 | A kind of active damper for Linearkompressor |
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