CN113315300A - Compressor and motor thereof - Google Patents
Compressor and motor thereof Download PDFInfo
- Publication number
- CN113315300A CN113315300A CN202010125338.5A CN202010125338A CN113315300A CN 113315300 A CN113315300 A CN 113315300A CN 202010125338 A CN202010125338 A CN 202010125338A CN 113315300 A CN113315300 A CN 113315300A
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- Prior art keywords
- coil
- sub
- compressor
- motor
- terminal
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Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
- H02K5/22—Auxiliary parts of casings not covered by groups H02K5/06-H02K5/20, e.g. shaped to form connection boxes or terminal boxes
- H02K5/225—Terminal boxes or connection arrangements
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B35/00—Piston pumps specially adapted for elastic fluids and characterised by the driving means to their working members, or by combination with, or adaptation to, specific driving engines or motors, not otherwise provided for
- F04B35/04—Piston pumps specially adapted for elastic fluids and characterised by the driving means to their working members, or by combination with, or adaptation to, specific driving engines or motors, not otherwise provided for the means being electric
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K3/00—Details of windings
- H02K3/04—Windings characterised by the conductor shape, form or construction, e.g. with bar conductors
- H02K3/28—Layout of windings or of connections between windings
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K3/00—Details of windings
- H02K3/46—Fastening of windings on the stator or rotor structure
- H02K3/50—Fastening of winding heads, equalising connectors, or connections thereto
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P25/00—Arrangements or methods for the control of AC motors characterised by the kind of AC motor or by structural details
- H02P25/16—Arrangements or methods for the control of AC motors characterised by the kind of AC motor or by structural details characterised by the circuit arrangement or by the kind of wiring
- H02P25/18—Arrangements or methods for the control of AC motors characterised by the kind of AC motor or by structural details characterised by the circuit arrangement or by the kind of wiring with arrangements for switching the windings, e.g. with mechanical switches or relays
- H02P25/188—Arrangements or methods for the control of AC motors characterised by the kind of AC motor or by structural details characterised by the circuit arrangement or by the kind of wiring with arrangements for switching the windings, e.g. with mechanical switches or relays wherein the motor windings are switched from series to parallel or vice versa to control speed or torque
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Compressor (AREA)
- Windings For Motors And Generators (AREA)
Abstract
The invention discloses a compressor and a motor thereof, wherein the compressor comprises: a housing; the wiring shell cover is arranged at one end of the shell; the wiring shell cover is provided with a first wiring terminal and a second wiring terminal; the motor is arranged in the shell; the motor comprises three-phase windings, and the head end of each phase winding is connected to the first wiring terminal respectively; the tail end of each phase of winding is connected to the second connecting terminal respectively; each phase winding in the three-phase windings comprises at least two groups of first coils connected in parallel, and each first coil comprises a first sub-coil and a second sub-coil; the first sub-coil and the second sub-coil are connected in parallel or in series through a first switch, and the parallel and series state switching can be realized through the first switch. The invention can adjust the generating voltage of the motor for the compressor in due time according to different working conditions after the compressor is packaged and molded, thereby effectively ensuring the stability of the efficiency of the compressor and the motor thereof.
Description
Technical Field
The invention relates to the field of refrigeration equipment, in particular to a compressor and a motor thereof.
Background
Because the generated voltage of the variable frequency motor for the compressor is in direct proportion to the number of turns of the coil of the variable frequency motor, once the compressor is integrally packaged and molded, the generated voltage of the motor is a fixed quantity, and cannot be switched or changed. Therefore, the motor for the existing compressor cannot be flexibly applied to a wider working condition range, and cannot well exert the efficiency under a specific working condition. If the generated voltage of the motor is designed to be high, good performance can be obtained when the motor runs at low speed. However, the motor of this type enters a field weakening state earlier due to an excessively high operating voltage, thereby affecting the efficiency of the motor. If the generated voltage of the motor is designed to be low, the motor can not enter a field weakening state later. However, the flux ratio of the flux linkage is insufficient in the low-speed operation state, and the efficiency is inevitably affected.
Disclosure of Invention
The invention aims to provide a compressor and a motor thereof aiming at the defects in the prior art, so that the generated voltage of the motor for the compressor can be timely adjusted according to different working conditions after the compressor is completely encapsulated and molded, and the efficiency stability of the compressor and the motor thereof is further effectively ensured.
In order to solve the technical problems, the invention adopts the following technical scheme:
according to an aspect of the present invention, there is provided a compressor including:
a housing;
the wiring shell cover is arranged at one end of the shell; the wiring shell cover is provided with a first wiring terminal and a second wiring terminal;
the motor is arranged in the shell; the motor comprises three-phase windings, and the head end of each phase winding is connected to the first wiring terminal respectively; the tail end of each phase of winding is connected to the second connecting terminal respectively;
each phase winding in the three-phase windings comprises at least two groups of first coils connected in parallel, and each first coil comprises a first sub-coil and a second sub-coil; the first sub-coil and the second sub-coil are connected in parallel or in series through a first switch, and the parallel and series state switching can be realized through the first switch.
In one embodiment of the present invention, the first sub-coil and the second sub-coil have the same number of turns.
In an embodiment of the present invention, the first connection terminal includes a first base and three first connection terminals, the three first connection terminals are insulated from the first base and penetrate through two axial ends of the first base, the three-phase windings are connected to the three first connection terminals in a one-to-one correspondence, and a head end of each phase of winding is connected to a first end of the first connection terminal facing the motor.
In an embodiment of the present invention, a second end of each of the first terminals, which faces away from the motor, is provided with a first insert.
In an embodiment of the present invention, the second terminal includes a second base, three second terminals and a third terminal, and the second terminal and the third terminal are insulated from the second base and penetrate through two axial ends of the second base; the three-phase windings are connected with the three second wiring terminals in a one-to-one correspondence mode, and the tail end of each phase of winding is electrically connected to the third wiring terminal through one second wiring terminal.
In an embodiment of the present invention, a second insertion piece and a third insertion piece are respectively disposed at ends of the second terminal and the third terminal, which are away from the housing.
In one embodiment of the present invention, the first switch is an insulated gate bipolar transistor.
The present invention also provides another compressor, including:
a housing;
the wiring shell cover is arranged at one end of the shell; the wiring shell cover is provided with a first wiring terminal and a second wiring terminal;
the motor is arranged in the shell; the motor comprises three-phase windings, and the head end of each phase winding is connected to the first wiring terminal respectively; the tail end of each phase of winding is connected to the second connecting terminal respectively;
each phase winding of the three-phase windings comprises at least two groups of first coils which are connected in series, and each first coil comprises a first sub-coil and a second sub-coil; the first sub-coil and the second sub-coil are connected in parallel or in series through a first switch, and the parallel and series state switching can be realized through the first switch.
According to an aspect of the present invention, there is provided a motor for a compressor, including a three-phase winding; each phase of winding comprises at least two groups of first coils connected in parallel, and each first coil comprises a first sub-coil and a second sub-coil; the first sub-coil and the second sub-coil are connected in parallel or in series through a first switch, and the parallel and series state switching can be realized through the first switch.
The invention also provides another motor for a compressor, which comprises a three-phase winding; each phase of winding comprises at least two groups of first coils which are connected in series, and each first coil comprises a first sub-coil and a second sub-coil; the first sub-coil and the second sub-coil are connected in parallel or in series through a first switch, and the parallel and series state switching can be realized through the first switch.
The compressor and the motor thereof can adjust the generated voltage of the motor for the compressor in due time according to different working conditions after the compressor is packaged and molded, thereby effectively ensuring the stability of the efficiency of the compressor and the motor thereof.
Drawings
Other features, objects and advantages of the present invention will become more apparent upon reading of the following detailed description of non-limiting embodiments thereof, with reference to the accompanying drawings.
Fig. 1 is a schematic structural diagram of a compressor according to an embodiment of the present invention.
Fig. 2 is a schematic diagram of connection of three-phase windings of a motor for a compressor in accordance with an embodiment of the present invention.
Fig. 3 is a schematic diagram of a first state of the first coil according to an embodiment of the invention.
Fig. 4 is a diagram illustrating a second state of the first coil according to an embodiment of the present invention.
Fig. 5 is a schematic diagram of connection of three-phase windings of a motor for a compressor according to another embodiment of the present invention.
Fig. 6 is a top view of a first terminal in an embodiment of the invention.
Fig. 7 is a perspective view of a first terminal in an embodiment of the invention. And
fig. 8 is a top view of a second terminal in an embodiment of the invention.
Reference numerals
1 casing
2 casing cover of connecting wire
3 electric machine
4 crankshaft
5 air cylinder
100 first coil
101 first sub-coil
102 second sub-coil
103 first switch
200 first connecting terminal
201 first base
202 first terminal post
203 first insert sheet
204 fourth insert sheet
300 second connecting terminal
301 second base
302 second terminal
303 third terminal
Detailed Description
Example embodiments will now be described more fully with reference to the accompanying drawings. Example embodiments may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of example embodiments to those skilled in the art. The same reference numerals in the drawings denote the same or similar structures, and thus their repetitive description will be omitted.
Example 1
Fig. 1 is a schematic structural diagram of a compressor according to an embodiment of the present invention. Fig. 2 is a schematic diagram of connection of three-phase windings of a motor for a compressor in accordance with an embodiment of the present invention. Fig. 3 is a schematic diagram of a first state of the first coil according to an embodiment of the invention. Fig. 4 is a diagram illustrating a second state of the first coil according to an embodiment of the present invention. Fig. 5 is a schematic diagram of connection of three-phase windings of a motor for a compressor according to another embodiment of the present invention. Fig. 6 is a top view of a first terminal in an embodiment of the invention. Fig. 7 is a perspective view of a first terminal in an embodiment of the invention. Fig. 8 is a top view of a second terminal in an embodiment of the invention. As shown in fig. 1 to 8, the present embodiment provides a compressor including: the motor comprises a shell 1, a wiring shell cover 2 and a motor 3. The wiring shell cover 2 is arranged at one end of the shell 1; the wiring shell cover 2 is provided with a first wiring terminal 200 and a second wiring terminal 300; the motor 3 is arranged in the shell 1; the motor 3 comprises three-phase windings, and the head end of each phase winding is connected to the first wiring terminal 200; the tail end of each phase of winding is connected to the second connection terminal 300; as shown in fig. 2 to 4, each of the three-phase windings includes at least two groups of first coils 100 connected in parallel, and the first coils 100 include a first sub-coil 101 and a second sub-coil 102; the first sub-coil 101 and the second sub-coil 102 are connected in parallel or in series through a first switch 103, and the parallel and series state switching can be realized through the first switch 103. When the first sub-coil 101 and the second sub-coil 102 are connected in parallel through a first switch 103, the motor 3 is in a high-speed operation state after being powered on. When the first sub-coil 101 and the second sub-coil 102 are connected in series through a first switch 103, the motor 3 is in a low-speed operation state after being powered on.
The invention can adjust the generating voltage of the motor for the compressor in due time according to different working conditions after the compressor is packaged and molded, thereby effectively ensuring the stability of the efficiency of the compressor and the motor thereof.
As shown in fig. 6 and 7, the first connection terminal 200 includes a first base 201 and three first connection terminals 202, the three first connection terminals 202 are insulated from the first base 201 and penetrate through two axial ends of the first base 201, and the head ends of the three-phase windings are connected to the first ends of the three first connection terminals 202 facing the motor 3 in a one-to-one correspondence manner. It should be further noted that the three first terminals 202 are insulated from each other, and one end of each first terminal is connected to the head end of the three-phase winding, and the other end of each first terminal is used for connecting to an external three-phase power source. Further, an insulating material is disposed between the three first posts 202 and the first base 201. Further, a second end of each first terminal 202 facing away from the motor 3 is provided with a first insert 203. In an embodiment of the present invention, the second terminal 300 includes a second base 301, three second terminals 302 and a third terminal 303, and the second terminal 302 and the third terminal 303 are insulated from the second base 301 and penetrate through two axial ends of the second base 301; the tail ends of the three-phase windings are connected to three second terminals 302 in a one-to-one correspondence manner, the three second terminals facing the first end of the motor 3, and the tail end of each phase winding is electrically connected to the third terminal 303 through the second terminal 302 to form a neutral point. The number of the third terminals 303 on the second terminals 300 in the compressor can be properly increased and adjusted according to the setting requirement of the neutral point of the motor. In addition, a second inserting sheet and a third inserting sheet are respectively arranged at one end of the second binding post 302 and one end of the third binding post 303, which are far away from the shell 1. Aforementioned each inserted sheet all can with corresponding terminal welded fastening or integrated into one piece, the stability that is connected of terminal and external power source is favorable to improving in being provided with of inserted sheet. As shown in fig. 7, an end of the first terminal 202 facing the motor 3 may be further provided with a fourth tab 204. Of course, the second terminal 302 and the third terminal 303 may also be designed in such a way that a corresponding tab is provided at its end facing the electric machine 3. Therefore, the connection of the binding post and the winding lead can be facilitated, and the connection stability can be improved.
As shown in fig. 1, 2 and 5, the three-phase winding may specifically include a first phase winding U, a second phase winding V and a third phase winding W. The head end Ua of the first phase winding U, the head end Va of the second phase winding V, and the head end Wa of the third phase winding W are respectively connected to a first terminal 202 facing the first end of the motor 3. The tail end Ub of the first phase winding U, the tail end Vb of the second phase winding V, and the tail end Wb of the third phase winding W are respectively connected to a first end of the second terminal 302 facing the motor 3. Optionally, the number of turns of the first sub-coil 101 is the same as that of the second sub-coil 102. This ensures the stability of the operation of the electric motor 3.
Further, the first switch 103 may be an insulated gate bipolar transistor. The insulated gate bipolar transistor is a device formed by compounding an MOSFET (metal oxide semiconductor field effect transistor) and a bipolar transistor, and has the advantages of small driving power and high switching speed of the MOSFET device, and also has the advantages of reduced saturation voltage and large capacity of the bipolar device. Of course, the first switch in the present application is not limited thereto, and may be other electronic switches commonly used in the art.
In addition, it should be noted that, as shown in fig. 1, the compressor of course further includes conventional components such as a crankshaft 4, a cylinder 5, an accumulator, etc., and these components and their connection relationship are implemented by conventional technical means in the art, and the present invention is not limited thereto.
In conclusion, the invention can timely adjust the generated voltage of the motor for the compressor according to different working conditions after the compressor is packaged and molded, thereby effectively ensuring the stability of the efficiency of the compressor and the motor thereof.
Accordingly, the present embodiment also provides a motor for a compressor, as shown in fig. 2 to 4, the motor for a compressor includes a three-phase winding; each phase winding comprises at least two groups of first coils 100 connected in parallel, wherein each first coil 100 comprises a first sub-coil 101 and a second sub-coil 102; the first sub-coil 101 and the second sub-coil 102 are connected in parallel or in series through a first switch 103, and the parallel and series state switching can be realized through the first switch 103. The three-phase windings may specifically include a first phase winding U, a second phase winding V, and a third phase winding W. The head end Ua of the first phase winding U, the head end Va of the second phase winding V, and the head end Wa of the third phase winding W are connected to the first connection terminal 200, respectively. The tail end Ub of the first phase winding U, the tail end Vb of the second phase winding V, and the tail end Wb of the third phase winding W are respectively connected to the second connection terminal 300 to form a neutral point. Optionally, the number of turns of the first sub-coil 101 is the same as that of the second sub-coil 102. This ensures the stability of the operation of the electric motor 3.
In conclusion, the invention can timely adjust the generated voltage of the motor for the compressor according to different working conditions after the compressor is packaged and molded, thereby effectively ensuring the stability of the efficiency of the compressor and the motor thereof.
Example 2
The present embodiment provides another compressor, as shown in fig. 5, the present embodiment is different from embodiment 1 mainly in that each phase winding of the three-phase windings includes at least two groups of first coils 100 connected in series, and the first coils 100 include a first sub-coil 101 and a second sub-coil 102; referring to fig. 3 and 4, the first sub-coil 101 and the second sub-coil 102 are connected in parallel or in series by a first switch 103, and the parallel and series states can be switched by the first switch 103. The invention can adjust the generating voltage of the motor for the compressor in due time according to different working conditions after the compressor is packaged and molded, thereby effectively ensuring the stability of the efficiency of the compressor and the motor thereof.
Correspondingly, the present embodiment also provides another compressor motor, which can be seen from fig. 3 to 5, and the compressor motor includes a three-phase winding; each phase winding comprises at least two groups of first coils 100 connected in series, wherein each first coil 100 comprises a first sub-coil 101 and a second sub-coil 102; the first sub-coil 101 and the second sub-coil 102 are connected in parallel or in series through a first switch 103, and the parallel and series state switching can be realized through the first switch 103. The motor for the compressor can adjust the generated voltage of the motor for the compressor in due time according to different working conditions after the whole compressor is packaged and molded, so that the stability of the efficiency of the compressor and the motor of the compressor is effectively ensured.
The foregoing is a more detailed description of the invention in connection with specific preferred embodiments and it is not intended that the invention be limited to these specific details. For those skilled in the art to which the invention pertains, several simple deductions or substitutions can be made without departing from the spirit of the invention, and all shall be considered as belonging to the protection scope of the invention.
Claims (10)
1. A compressor, comprising:
a housing;
the wiring shell cover is arranged at one end of the shell; the wiring shell cover is provided with a first wiring terminal and a second wiring terminal;
the motor is arranged in the shell; the motor comprises three-phase windings, and the head end of each phase winding is connected to the first wiring terminal respectively; the tail end of each phase of winding is connected to the second connecting terminal respectively;
each phase winding in the three-phase windings comprises at least two groups of first coils connected in parallel, and each first coil comprises a first sub-coil and a second sub-coil; the first sub-coil and the second sub-coil are connected in parallel or in series through a first switch, and the parallel and series state switching can be realized through the first switch.
2. The compressor of claim 1, wherein the first sub-coil has the same number of turns as the second sub-coil.
3. The compressor of claim 1, wherein the first connection terminal comprises a first base and three first connection terminals, the three first connection terminals are insulated from the first base and penetrate through two axial ends of the first base, the three-phase windings are connected with the three first connection terminals in a one-to-one correspondence, and the head end of each phase winding is connected to one first connection terminal facing the first end of the motor.
4. The compressor of claim 3, wherein each of the second ends of the first terminals facing away from the motor is provided with a first insert.
5. The compressor of claim 1, wherein the second terminal includes a second base, three second terminals and at least one third terminal, and the second terminal and the third terminal are insulated from the second base and penetrate through two axial ends of the second base; the three-phase windings are connected with the three second wiring terminals in a one-to-one correspondence mode, and the tail end of each phase of winding is electrically connected to the third wiring terminal through one second wiring terminal.
6. The compressor of claim 5, wherein the second terminal and the third terminal are provided with a second insert and a third insert respectively at ends thereof facing away from the shell.
7. The compressor of claim 1, wherein the first switch is an insulated gate bipolar transistor.
8. A compressor, comprising:
a housing;
the wiring shell cover is arranged at one end of the shell; the wiring shell cover is provided with a first wiring terminal and a second wiring terminal;
the motor is arranged in the shell; the motor comprises three-phase windings, and the head end of each phase winding is connected to the first wiring terminal respectively; the tail end of each phase of winding is connected to the second connecting terminal respectively;
each phase winding of the three-phase windings comprises at least two groups of first coils which are connected in series, and each first coil comprises a first sub-coil and a second sub-coil; the first sub-coil and the second sub-coil are connected in parallel or in series through a first switch, and the parallel and series state switching can be realized through the first switch.
9. A motor for a compressor is characterized by comprising a three-phase winding; each phase of winding comprises at least two groups of first coils connected in parallel, and each first coil comprises a first sub-coil and a second sub-coil; the first sub-coil and the second sub-coil are connected in parallel or in series through a first switch, and the parallel and series state switching can be realized through the first switch.
10. A motor for a compressor is characterized by comprising a three-phase winding; each phase of winding comprises at least two groups of first coils which are connected in series, and each first coil comprises a first sub-coil and a second sub-coil; the first sub-coil and the second sub-coil are connected in parallel or in series through a first switch, and the parallel and series state switching can be realized through the first switch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010125338.5A CN113315300A (en) | 2020-02-27 | 2020-02-27 | Compressor and motor thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010125338.5A CN113315300A (en) | 2020-02-27 | 2020-02-27 | Compressor and motor thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113315300A true CN113315300A (en) | 2021-08-27 |
Family
ID=77370286
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010125338.5A Pending CN113315300A (en) | 2020-02-27 | 2020-02-27 | Compressor and motor thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113315300A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201307701Y (en) * | 2006-02-20 | 2009-09-09 | 布莱克和戴克公司 | Electric tool |
| CN103701288A (en) * | 2014-01-08 | 2014-04-02 | 洛阳市睿仕行智能科技发展有限公司 | Multi-winding motor |
| CN103746515A (en) * | 2013-10-21 | 2014-04-23 | 广东威灵电机制造有限公司 | Serial-parallel conversion device of three-phase motor winding and three-phase motor device |
| CN206932086U (en) * | 2017-05-17 | 2018-01-26 | 北京佳宇康华科技有限公司 | Multi-tap winding wide speed-regulation permanent-magnet synchronous motor |
| CN108092436A (en) * | 2018-01-03 | 2018-05-29 | 广东美芝制冷设备有限公司 | Compressor and refrigeration equipment |
-
2020
- 2020-02-27 CN CN202010125338.5A patent/CN113315300A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201307701Y (en) * | 2006-02-20 | 2009-09-09 | 布莱克和戴克公司 | Electric tool |
| CN103746515A (en) * | 2013-10-21 | 2014-04-23 | 广东威灵电机制造有限公司 | Serial-parallel conversion device of three-phase motor winding and three-phase motor device |
| CN103701288A (en) * | 2014-01-08 | 2014-04-02 | 洛阳市睿仕行智能科技发展有限公司 | Multi-winding motor |
| CN206932086U (en) * | 2017-05-17 | 2018-01-26 | 北京佳宇康华科技有限公司 | Multi-tap winding wide speed-regulation permanent-magnet synchronous motor |
| CN108092436A (en) * | 2018-01-03 | 2018-05-29 | 广东美芝制冷设备有限公司 | Compressor and refrigeration equipment |
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Application publication date: 20210827 |
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