KR20200089486A - Compressor including coil connection structure - Google Patents

Abstract

The present invention relates to a compressor which can reduce a manufacturing cost. Particularly, the present invention relates to a compressor including a winding connection structure of a motor. The compressor comprises: a motor generating a rotational force and including a stator to which a plurality of windings are installed and a rotor which rotates with respect to the stator; an inverter unit electrically connected to the motor to drive the motor; a terminal unit arranged and installed in one direction on each of the windings; a circuit board including a pattern connected to the plurality of windings through the terminal unit; and a withdrawal terminal connected to the pattern on the circuit board and connected to the inverter unit.

Description

Compressor including coil connection structure {Compressor including coil connection structure}

The present invention relates to a compressor, and more particularly, to a compressor including a winding connection structure of a motor.

A scroll type compressor is a type of compressor capable of compressing a fluid such as a refrigerant while a fixed scroll is fixed in an inner space of a closed casing, and the orbiting scroll meshes with the fixed scroll.

This scroll type compressor can obtain a relatively high compression ratio compared to other types of compressors, and also has the advantage of smoothly inhaling, compressing, and discharging fluids to obtain stable torque, so it is widely used for refrigerant compression in air conditioning equipment, etc. Is being used.

A compressor including such a scroll-type compressor can operate by driving a motor by an inverter.

The motor is installed in the inner space of the casing to generate a rotational force, and includes a stator in which a winding is installed and a stator assembly including an insulator coupled to the stator to insulate the windings and a rotor rotating in combination with the stator assembly Can.

At this time, the winding may include a polar wire and a neutral wire, that is, a wire corresponding to each phase and a ground wire. In addition, each pole wire may be connected to the lead wire, and the neutral wire or ground wire may be connected to the neutral point. These lead wires can be connected to the inverter side described above.

3 For an example of a motor with a parallel structure, the wiring work process to connect these windings requires the process of arranging 18 strands (for a 9-slot motor) containing these poles and neutrals (ground wires), which is done manually. Is done.

The winding structure of the stator of this motor and related processes are published in the following prior art documents (Patent Document 1).

In this way, the wiring process of the motor requires a manual cleaning process, and in the case of a 9-slot motor (motor of 3 parallel structures), 9 processes are required, which may have disadvantages in that workability is poor.

Accordingly, there may be a problem that the working time increases and the production cost increases due to the increase in the number of working people.

Therefore, there is a need for a solution to this problem.

1. Patent Publication No. 10-2014-0066088

Technical problem to be achieved by the present invention is to solve the above problems, to provide a compressor including a winding connection structure that can simplify the winding connection process of a motor that is complicated and requires a lot of manual work.

In addition, the present invention is to provide a compressor including a winding connection structure with improved reliability.

As a first aspect for achieving the above technical problem, the present invention is a compressor including a winding connection structure of a motor, which includes a stator that generates rotational force and that is installed with a plurality of windings and that rotates with respect to the stator. Motor to do; An inverter unit electrically connected to the motor to drive the motor; A terminal unit arranged and installed in one direction on each winding; A circuit board including a pattern connected to the plurality of windings through the terminal portion; And it may be configured to include a draw terminal connected to the pattern is installed on the circuit board and connected to the inverter.

In addition, the plurality of windings may correspond to three phases.

In addition, the plurality of windings may be arranged in a cyclic winding corresponding to the three phases.

In addition, the circuit board may include a first circuit board, a second circuit board, and a third circuit board to which the terminal portions corresponding to the three phases are respectively connected.

Also, the first circuit board, the second circuit board, and the third circuit board may be provided by being stacked on each other.

In addition, each terminal portion may include a pair of upper and ground terminals corresponding to each phase.

In addition, the circuit board may include a neutral point where the ground terminals of the respective terminal parts gather.

In addition, the pattern of the terminal portion and the circuit board may be connected by a plug method.

As a second aspect for achieving the above technical problem, the present invention, a compressor including a winding connection structure of a motor, the casing having a closed interior space; A motor installed in the inner space of the casing to generate a rotational force and including a stator in which a plurality of windings are installed and a rotor rotating relative to the stator; A rotating shaft coupled to and rotated with the rotor of the motor; A frame installed on one side of the motor to support the rotating shaft; A fixed scroll coupled to the frame to form a compressed space; An orbiting scroll that is eccentrically coupled to the rotating shaft, is located in the compression space, and is coupled to the fixed scroll to perform orbiting motion to compress fluid; A terminal unit arranged and installed in one direction on each winding; And a circuit board including a pattern connected to the plurality of windings through the terminal portion.

In addition, an inverter part electrically connected to the motor to drive the motor may be further included.

In addition, the circuit board may be further connected to the pattern, and may further include a draw terminal connected to the inverter.

In addition, the plurality of windings may be arranged in a cyclic winding corresponding to the three phases.

In addition, the circuit board may include a first circuit board, a second circuit board, and a third circuit board to which the terminal portions corresponding to the three phases are respectively connected.

Also, the first circuit board, the second circuit board, and the third circuit board may be provided by being stacked on each other.

In addition, each terminal portion may include a pair of upper and ground terminals corresponding to each phase.

In addition, the circuit board may include a neutral point where the ground terminals of the respective terminal parts gather.

The present invention has the following effects.

First, according to an embodiment of the present invention, it is possible to simplify the winding wiring process of a motor that is complicated and requires a lot of manual work.

That is, the three-phase connection and the neutral point connection can be connected by a pattern design in the circuit board, thereby simplifying the winding process of a motor that requires conventional soldering and crimping work. In addition, the winding connection process may be performed using an automated process rather than manual work.

Therefore, the reliability of the winding connection structure of the motor can be improved, the working process for this can be reduced, and the manufacturing cost can be reduced.

1 is a cross-sectional view showing a compressor according to an embodiment of the present invention.
2 is a schematic diagram showing a wiring structure of a winding that can be applied to the present invention.
Figure 3 is a schematic diagram showing a state in which the winding is installed on the stator of the motor according to an embodiment of the present invention.
4 is an exploded perspective view showing a wiring structure of a winding of a motor according to an embodiment of the present invention.
5 is a perspective view showing a wiring structure of a winding of a motor according to an embodiment of the present invention.
6 is a front view showing a wiring structure of a winding of a motor according to an embodiment of the present invention.
7 is a plan view showing a circuit board according to an embodiment of the present invention.
8 is an exploded perspective view showing a wiring structure of a motor winding according to another embodiment of the present invention.
9 is a perspective view showing a wiring structure of a winding of a motor according to another embodiment of the present invention.
10 is a front view showing a wiring structure of a winding of a motor according to another embodiment of the present invention.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

While the invention allows for various modifications and variations, specific embodiments thereof are illustrated and illustrated by the drawings, which will be described in detail below. However, it is not intended to limit the invention to the specific forms disclosed, but rather the invention includes all modifications, equivalents, and substitutes consistent with the spirit of the invention as defined by the claims.

When an element, such as a layer, region, or substrate, is referred to as being "on" another component, it will be understood that it may be present directly on the other element, or an intermediate element between them. .

Although the terms first, second, etc. can be used to describe various elements, components, regions, layers and/or regions, these elements, components, regions, layers and/or regions It will be understood that it should not be limited by these terms.

1 is a cross-sectional view showing a compressor according to an embodiment of the present invention. 1 shows a horizontal scroll compressor.

The horizontal scroll type compressor 100 includes a casing 110 having an enclosed inner space, and components for compressing a fluid may be installed in the casing 110. That is, in the casing 110, the motor 200, the rotating shaft 300, the fixed scroll 500 and the orbiting scroll 600 interlocking with each other, and may include a frame 400 on which the rotating shaft 300 is installed. .

The casing 110 for forming a closed space may be formed in the form of a horizontal cylinder. In the casing 110, a suction port 111 and a discharge port 112 for entering and exiting the refrigerant may be formed.

A motor 200 generating rotational force may be installed in the inner space of the casing 110. In addition, a rotating shaft 300 coupled to the rotor 210 of the motor 200 may be installed.

The rotating shaft 300 may be eccentrically coupled to the orbiting scroll 600. That is, the motor 200 may provide a rotational force through which the orbiting scroll 600 orbits through the rotation shaft 300.

The frame 400 may be installed on one side of the motor 200. The frame 400 may be formed of a material having high hardness, such as cast iron, as the main frame.

The frame 400 may provide a supporting structure in which the fixed scroll 500 and the orbiting scroll 600 can be installed. That is, the fixed scroll 500 may be coupled to the frame 400 to form a compressed space 501.

At this time, the casing 110 includes a discharge chamber 101 through which refrigerant gas is discharged from the compression space 501, and the discharge port 112 is provided in the discharge chamber 101, and the refrigerant in the discharge chamber 101 is provided. May be discharged through the discharge port 112.

The oil in the discharge chamber 101 may be separated from the refrigerant, and at this time, the oil separated at the lower side may be supplied to each part sucked and rotated through the oil pickup 113.

A separate inverter space may be provided on the inlet 111 side of the casing 110, and the inverter unit 120 may be located in the inverter space. The inverter space may be formed by a separation unit 270 that seals the inverter unit 120 from the space where the motor 200 is installed.

The motor 200 is installed in the inner space of the casing 110 to generate rotational force, and a stator including a stator 220 in which a winding is installed and an insulator 230 coupled to the stator 220 to insulate the windings An assembly 224 and a stator assembly 224 coupled to the rotating rotor 210 may be included.

As such, the stator assembly 224 may include a stator 220 made of metal and an insulator 230 coupled to the stator 220.

The insulator 230 is coupled to the inner surface of the stator 220 forming a cylindrical shell shape (or cylinder shape), and may have a shape protruding to both sides of the stator 220.

That is, the cylindrical stator 220 may protrude to both sides in the center direction (ie, the direction across the center).

The inverter unit 120 installed in the inverter space may be electrically connected to the motor 200 to drive the motor 200. That is, the inverter unit 120 may be connected to windings 261, 262, and 263 (see FIG. 4) wound around the stator 220 of the motor 200 to provide driving force to the motor 200.

Terminal portions 264, 265, 267, 268 (see FIG. 4) which are arranged and installed in one direction on each of the windings 261, 262, and 263 may be installed on one side of the stator 220.

Accordingly, a circuit board 240 including a pattern connected to a plurality of windings 261, 262 and 263 through terminal portions 264, 265, 267 and 268 may be provided on one side of the stator 220.

The circuit board 240 may include a lead terminal 241 connected to the pattern formed on the circuit board 240 and connected to the inverter unit 120. A connector 250 is connected to the withdrawal terminal 241 so that the circuit board 240 can be connected to the inverter unit 120 through the connector 250.

The configuration of the terminal portions 264, 265, 267, and 268 and the circuit board 240 can effectively improve the wiring structure of the windings 261, 262, and 263, which were conventionally performed manually, and thus the motor ( 200).

The wiring structure of the windings 261, 262, and 263 including the terminal portions 264, 265, 267, 268 and the circuit board 240 will be described later in detail.

Meanwhile, a bearing 310 for fixing the rotating shaft 300 to be rotatable may be installed on one side of the frame 400. On the other hand, in some cases, the bearing 320 is also installed on the inner end side of the casing 100 to help the rotating shaft 300 to rotate smoothly.

Between the fixed scroll 500 and the frame 400, the orbiting scroll 600 coupled to the fixed scroll 500 and pivoting with respect to the fixed scroll 500 may be installed.

The orbiting scroll 600 is connected to the rotating shaft 300 and is eccentrically coupled to the center of the rotating shaft 300, so that the orbiting movement can be implemented.

At this time, an elastic plate (not shown) forming a circle may be interposed between the fixed scroll 500 and the frame 400.

In this way, in the scroll type compressor 100, a compression chamber 501 is formed between the orbiting scroll 600 and the fixed scroll 500, and the back pressure chamber (between the orbiting scroll 600 and the frame 400) is formed. 401) may be formed.

A balance weight 700 may be installed in the back pressure chamber 401 to offset the centrifugal force generated by the turning of the orbiting scroll 600. The balance weight 700 may be installed on the rotating shaft 300 and may be installed on the opposite side to the eccentric direction of the rotating shaft 300.

2 is a schematic diagram showing a wiring structure of a winding that can be applied to the present invention.

Referring to FIG. 2, as an example, the motor 200 may be a three-phase driving motor including a U-phase 10, a V-phase 20, and a W-phase 30. At this time, the U-phase 10, V-phase 20 and W-phase 30 may be alternately located in order. That is, after the windings corresponding to U1, V1, and W1 are in turn, the windings corresponding to U2, V2, and W2 may be sequentially located. 3 The winding of the motor of the parallel structure may be positioned such that the windings of the U phase 10, V phase 20, and W phase 30 are repeated three times. That is, after the windings corresponding to U2, V2, and W2, the windings corresponding to U3, V3, and W3 may be further located.

In this case, the windings corresponding to the U phase 10, the V phase 20, and the W phase 30 may each include a polar wire and a neutral wire, that is, a wire corresponding to each phase and a ground wire. In addition, each pole wire may be connected to the lead wire 40 and the neutral wire or ground wire may be connected to the neutral point 50.

The lead wire 40 may be connected to the inverter 120 described above.

In the three parallel structure motor 200, the wiring work process requires a process of arranging 18 strands (in the case of a 9-slot motor) including such poles and neutrals (ground wires), and these processes are performed manually.

As described above, the wiring work process of the motor 200 requires a manual cleanup process, and in the case of a 9-slot motor (motor of 3 parallel structures), 9 processes are required, which may have a disadvantage of poor workability.

Accordingly, there may be a problem that the working time increases and the production cost increases due to the increase in the number of working people.

Figure 3 is a schematic diagram showing a state in which the winding is installed on the stator of the motor according to an embodiment of the present invention.

Referring to FIG. 3, in the case of a 9-slot motor (motor of 3 parallel structures), a winding corresponding to each phase is wound.

That is, in the nine-slot motor, nine slots 221 are arranged at equal intervals along the inner circumference of the stator 220, and these nine slots 221 have U-phase windings 261 corresponding to the U-phase, V The V-phase winding 262 corresponding to the phase and the W-phase winding 263 corresponding to the W phase may be repeatedly positioned (U1->V1->W1->U2->V2->W2- >U3->V3->W3).

At this time, in FIG. 3, the windings of each phase are divided into'O' and'X' according to the winding direction.

4 is an exploded perspective view showing a wiring structure of a winding of a motor according to an embodiment of the present invention. 5 is a perspective view showing a wiring structure of a winding of a motor according to an embodiment of the present invention. In addition, Figure 6 is a front view showing the connection structure of the winding of the motor according to an embodiment of the present invention.

4 to 6, the wiring structure of the stator 220 and the windings 261, 262, and 263 of the motor is mainly shown.

As described above, in the stator 220, a plurality of windings 261, 262, and 263 corresponding to the three phases may be repeatedly positioned.

When the nine slots 221 are nine-slot motors arranged at equal intervals, a plurality of windings 261, 262 and 263 corresponding to the three phases may be repeatedly positioned three times. In FIG. 4, reference numerals are added only for the three windings 261, 262, and 263, and the reference numerals are omitted in the repeated structure.

At this time, each of the windings 261, 262, and 263 may be provided with terminal portions 264, 265, 267, 268 arranged and installed in one direction.

Here, reference numerals 264, 265, and 267 denote terminal portions (upper terminals) to which ends of the windings 261, 262, and 263 corresponding to U-phase, V-phase, and W-phase are respectively connected, and reference numeral 268 is a neutral wire (ground wire). ) Refers to the terminal part (ground terminal) connected to it. In each of the windings 261, 262, and 263, the terminal portions 264, 265, 267 of each phase and the terminal portions 268 connected to the neutral wire (ground wire) are paired. That is, the upper terminals 264, 265, and 267 and the ground terminal 268 may be provided in pairs.

Circuit boards including patterns 242, 243, 244, and 245a to which the windings 261, 262, and 263 corresponding to the U-phase, V-phase, and W-phase are connected to the terminal portions 264, 265, 267, 268, respectively. (240) is coupled (here the pattern 245a corresponding to the neutral wire is shown in Figure 7).

At this time, the circuit board 240 is a pattern (242, 243, 244, 245a) of a circuit to which the windings 261, 262, and 263 corresponding to the U-phase, V-phase, and W-phase are connected to the disk-shaped substrate 245 This may be provided.

In addition, the circuit board 240 may be provided with a withdrawal terminal 241 so that the patterns 242, 243, 244, and 245a of these circuits are connected and connected to the inverter unit 120.

As an embodiment, the terminal units 264, 265, 267, and 268 may be directly connected to circuit patterns 242, 243, and 244 formed on the circuit board 240, but as illustrated in FIGS. 4 to 6, The circuit board 240 may be coupled to and connected to the board-side terminal parts 246, 247, 248, and 249 installed on the side. At this time, the substrate side terminal portions 246, 247, 248, and 249 may be connected to the patterns 242, 243, 244, and 245a of the circuit.

Therefore, the terminal portions 264, 265, 267, and 268 may be coupled to the board-side terminal portions 246, 247, 248, 249 in a plug manner. As such, the terminal portions 264, 265, 267, and 268 may be connected to the circuit patterns 242, 243, 244, and 245a in a plug manner.

However, the present invention is not limited thereto, and the terminal portions 264, 265, 267, and 268 may be combined with the substrate side terminal portions 246, 247, 248, 249 in a manner such as soldering, welding, and fitting. to be.

7 is a plan view showing a circuit board according to an embodiment of the present invention.

Referring to FIG. 7, a state in which a pattern 242 corresponding to the U phase, a pattern 243 corresponding to the V phase, and a pattern 244 corresponding to the W phase are formed on the substrate 245 (see FIG. 4) is illustrated. It is done.

In this case, the pattern 242 corresponding to the U phase may be located on the outermost side of the substrate 245, and the pattern 244 corresponding to the W phase may be located on the innermost side of the substrate 245, and, The pattern 243 corresponding to the V phase may be located between the pattern 242 corresponding to the U phase and the pattern 244 corresponding to the W phase.

Referring to FIG. 7, it can be seen that portions (U1, V1, W1, U2, V2, W2, U3, V3, and W3) that are connected to terminal portions corresponding to each phase are cyclically repeated.

At this time, it can be seen that each part has a pattern connected to the polar wire and a pattern connected to the ground wire formed on both sides.

That is, the U-shaped pattern 242 and the neutral line 245a pattern may be located on both sides of the portion U1 connected to the first terminal portion of the U-phase. In addition, the V-phase pattern 243 and the neutral line 245a pattern may be located at both sides of the portion V1 connected to the first terminal portion of the V-phase. In addition, the W-phase pattern 244 and the neutral line 245a pattern may be located at both sides of the portion W1 connected to the first terminal portion of the W-phase.

In addition, in a portion connected to each terminal portion based on each phase, the corresponding pattern may be connected to the neutral line pattern 245a in opposite directions. That is, for example, in the U-phase, in the portions U1, U2, and U3 connected to each terminal, it can be seen that the U-phase pattern 242 and the neutral line 245a patterns are connected in opposite directions.

As described above, it can be seen that the patterns 242, 243, and 244 of each phase and the neutral line pattern 245a are positioned in pairs, and the neutral line patterns 245a are commonly connected to each phase.

Therefore, as illustrated in FIG. 7, the neutral line pattern 245a may be formed by converging on one side on the circuit board 240. The neutral line pattern 245a may be commonly connected to all phase patterns.

Also, on the circuit board 240, an extraction terminal 241 connected to the patterns 242, 243, and 244 of each phase may be installed.

The lead-out terminal 241 may include terminal holes 241a, 241b, and 241c connected to the patterns 242, 243, and 244 of each phase.

The lead-out terminal 241 may be connected to the inverter unit 120 through a connector 250 (see FIG. 1 ).

8 is an exploded perspective view showing a wiring structure of a motor winding according to another embodiment of the present invention. 9 is a perspective view showing a wiring structure of a winding of a motor according to another embodiment of the present invention. In addition, Figure 10 is a front view showing the connection structure of the winding of the motor according to another embodiment of the present invention.

8 to 10, the wiring structure of the stator 220 and the windings 261, 262 and 263 of the motor is mainly shown.

As described above, in the stator 220, a plurality of windings 261, 262, and 263 corresponding to the three phases may be repeatedly positioned.

When the nine slots 221 are nine-slot motors arranged at equal intervals, a plurality of windings 261, 262 and 263 corresponding to the three phases may be repeatedly positioned three times.

At this time, each of the windings 261, 262, and 263 may be provided with terminal portions 264, 265, 267, 268 arranged and installed in one direction.

Circuit boards 240 including patterns 242, 243, and 244 to which the windings 261, 262, and 263 corresponding to U-phase, V-phase, and W-phase are connected to the terminal portions 264, 265, 267, and 268, respectively. ) Are combined.

In this case, the circuit board 240 includes a first circuit board 240a, a second circuit board 240b, and a third circuit board 240c to which the terminal units 264, 265, 267, and 268 corresponding to the three phases are respectively connected. It can contain.

The first circuit board 240a, the second circuit board 240b, and the third circuit board 240c are formed in a disc shape, and may be stacked with each other. The structure of the circuit board 240 may improve insulation characteristics.

Circuits to which the windings 261, 262, and 263 corresponding to the U-phase, V-phase, and W-phase are connected to the first circuit board 240a, the second circuit board 240b, and the third circuit board 240c, respectively. The patterns 242, 243, and 244 of may be formed.

That is, a pattern 244 corresponding to the W phase may be formed on the first circuit board 240a, and the withdrawal terminal connected to the patterns 242, 243, and 244 of each phase may be formed on the first circuit board 240a ( 241) can be installed.

In addition, a pattern 243 corresponding to the V phase may be formed on the second circuit board 240b, and a pattern 242 corresponding to the U phase may be formed on the third circuit board 240c.

Although not shown in detail in FIG. 8, as in the above-described embodiment, the parts (U1, V1, W1, U2, V2, W2, U3, V3, W3) connected to the terminal parts corresponding to each phase are cyclically repeated. Can be located.

At this time, each part may be formed on both sides of a pattern connected to a polar wire and a pattern connected to a ground wire.

That is, the U-shaped pattern 242 and the neutral line 245a pattern may be located on both sides of the portion U1 connected to the first terminal portion of the U-phase, and the portion V1 connected to the first terminal portion of the V-phase may be The V-phase pattern 243 and the neutral line 245a pattern may be positioned on both sides. In addition, the W-phase pattern 244 and the neutral line 245a pattern may be located at both sides of the portion W1 connected to the first terminal portion of the W-phase.

In addition, in a portion connected to each terminal portion based on each phase, the corresponding pattern may be connected to the neutral line pattern 245a in opposite directions. That is, taking the U-phase as an example, in the portions U1, U2, and U3 connected to each terminal, the U-phase pattern 242 and the neutral line 245a pattern may be connected in opposite directions.

As described above, it can be seen that the patterns 242, 243, and 244 of each phase and the neutral line pattern 245a are positioned in pairs, and the neutral line patterns 245a are commonly connected to each phase.

Accordingly, the neutral line pattern 245a may be converged on one side of the circuit board 240. The neutral line pattern 245a may be commonly connected to all phase patterns.

That is, the matter according to one embodiment described with reference to FIG. 7 may be equally applied to the matter according to another embodiment described with reference to FIGS. 8 to 10.

Meanwhile, the terminal units 264, 265, 267, and 268 may be directly connected to the circuit patterns 242, 243, and 244 formed on the circuit board 240, but as shown in FIGS. 9 and 10, the third circuit It may be coupled to the substrate side terminal portion 246, 247, 248, 249 installed on the substrate 240c side. At this time, the substrate side terminal portions 246, 247, 248, and 249 may be connected to the patterns 242, 243, 244, and 245a of the circuit.

That is, unlike one embodiment, the substrate side terminal portions 246, 247, 248, and 249 may be installed on the third circuit board 240c.

Therefore, the terminal portions 264, 265, 267, and 268 may be coupled to the board-side terminal portions 246, 247, 248, 249 in a plug manner. As such, the terminal portions 264, 265, 267, and 268 may be connected to the circuit patterns 242, 243, 244, and 245a in a plug manner.

However, the present invention is not limited thereto, and the terminal portions 264, 265, 267, and 268 may be combined with the substrate side terminal portions 246, 247, 248, 249 in a manner such as soldering, welding, and fitting. to be.

As described above, according to the embodiment of the present invention, it is possible to simplify the winding connection process of a motor that is complicated and requires a lot of manual work.

That is, the three-phase connection and the neutral point connection can be connected by a pattern design in the circuit board, thereby simplifying the winding process of a motor requiring conventional soldering and crimping operations. In addition, the winding connection process may be performed using an automated process rather than manual work.

Therefore, the reliability of the winding connection structure of the motor can be improved, the working process for this can be reduced, and the manufacturing cost can be reduced.

On the other hand, the embodiments of the present invention disclosed in the specification and drawings are merely presented as specific examples for ease of understanding, and are not intended to limit the scope of the present invention. It is apparent to those skilled in the art to which the present invention pertains that other modifications based on the technical idea of the present invention can be implemented in addition to the embodiments disclosed herein.

100: compressor 110: casing
120: inverter unit
200: motor 210: rotor
220: stator 224: stator assembly
230: insulator 240: circuit board
241: withdrawal terminal 250: connector
261, 262, 263: winding
264, 265, 267, 268: terminal
300: rotating shaft 400: frame
500: fixed scroll 600: orbiting scroll
700: Balance weight

Claims (16)

In the compressor comprising a winding connection structure of the motor,
A motor that generates a rotational force, and includes a stator on which a plurality of windings are installed and a rotor rotating about the stator;
An inverter unit electrically connected to the motor to drive the motor;
A terminal unit arranged and installed in one direction on each winding;
A circuit board including a pattern connected to the plurality of windings through the terminal portion; And
A compressor comprising a winding connection structure, characterized in that it comprises a lead terminal connected to the pattern and connected to the inverter on the circuit board. The compressor according to claim 1, wherein the plurality of windings correspond to three phases. The compressor of claim 1, wherein the plurality of windings comprises a winding connection structure characterized in that windings corresponding to three phases are cyclically arranged. According to claim 2 or 3, wherein the circuit board includes a winding connection structure, characterized in that it comprises a first circuit board, a second circuit board and a third circuit board to which the terminal portions corresponding to the three phases are respectively connected. Compressor. The compressor according to claim 4, wherein the first circuit board, the second circuit board, and the third circuit board are stacked with each other. The compressor according to claim 2 or 3, wherein each terminal portion includes a pair of upper and ground terminals corresponding to each phase. The compressor according to claim 6, wherein the circuit board includes a neutral point where the ground terminals of the respective terminal parts are collected. The compressor according to claim 1, wherein the pattern of the terminal part and the circuit board is connected in a plug manner. In the compressor comprising a winding connection structure of the motor,
A casing having a closed interior space;
A motor installed in the inner space of the casing to generate a rotational force and including a stator in which a plurality of windings are installed and a rotor rotating relative to the stator;
A rotating shaft coupled to and rotated with the rotor of the motor;
A frame installed on one side of the motor to support the rotating shaft;
A fixed scroll coupled to the frame to form a compressed space;
An orbiting scroll that is eccentrically coupled to the rotating shaft, is located in the compression space, and is coupled to the fixed scroll to perform orbiting motion to compress fluid;
A terminal unit arranged and installed in one direction on each of the windings; And
Compressor comprising a winding connection structure, characterized in that it comprises a circuit board including a pattern connected to the plurality of windings through the terminal portion. The compressor according to claim 9, further comprising an inverter part electrically connected to the motor to drive the motor. 11. The compressor of claim 10, further comprising a lead terminal connected to the pattern and connected to the inverter on the circuit board. 10. The compressor of claim 9, wherein the plurality of windings comprises a winding connection structure in which windings corresponding to three phases are cyclically arranged. The compressor of claim 12, wherein the circuit board includes a first circuit board, a second circuit board, and a third circuit board to which terminal portions corresponding to the three phases are respectively connected. The compressor according to claim 13, wherein the first circuit board, the second circuit board, and the third circuit board are stacked with each other. The compressor according to claim 12, wherein each terminal portion includes a pair of upper terminals and ground terminals corresponding to each phase. 16. The compressor as claimed in claim 15, wherein the circuit board includes a neutral point where the ground terminals of the respective terminal parts gather.

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