JP2016031070A - Compressor - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a compressor having a stator coil and terminals which are connected via six lead wires, and being excellent in assemblability and easily preventive of the erroneous connection of the lead wires.SOLUTION: The compressor includes a lead wire assembly 100 for connecting the stator coil and the terminals. First and second lead wires 210 and 220, third and fourth lead wires 230 and 240, and fifth and sixth lead wires 250 and 260 of the assembly are connected to U, V and W phases of the terminals, respectively. The first and second lead wires, the third and fourth lead wires, and the fifth and sixth lead wires are bound by a first binding string 310, a second binding string 320, and a third binding string 330, respectively. Distances from the first-third binding strings to the terminal-side front ends of the lead wires are first-third distances, different from one another. The first-third lead wires and the fourth-sixth lead wires are bound on the further stator coil side than the first and second binding strings by a fourth binding string 340 and on the further stator coil side than the second and third binding strings by a fifth binding string 350, respectively.SELECTED DRAWING: Figure 5

Description

  The present invention relates to a compressor, and more particularly to a compressor in which a stator coil and a terminal of a motor are connected by six lead wires.

  Conventionally, as in Patent Document 1 (Japanese Patent Laid-Open No. 4-331435), a compressor including a lead wire assembly in which three lead wires connecting a stator coil of a motor and a terminal are bundled with one bundle string. Are known. By using the lead wire assembly, the lead wires used in the compressor can be managed as a single unit, so that the assembly of the compressor can be improved compared to the case where the lead wires are used without being bundled.

  By the way, as the capacity of the compressor is increased, the stator coil and the terminal may be connected by two lead wires for each phase with a total of six lead wires.

  In such a case, it is conceivable to use a lead wire assembly in which six lead wires are bundled with one bundle string in the compressor.

  Further, a lead wire assembly including three lead wires R1, R2, and R3 as one set as in Patent Document 1 (Japanese Patent Laid-Open No. 4-331435) is connected to the same phase of the stator coil on the stator coil side. It is also conceivable to use a lead wire assembly as schematically shown in FIG. 11 in which two lead wires are combined by bundling them together in a compressor.

  However, when six lead wires are bundled with one bundled string, it is difficult to recognize the lead wires, which may cause erroneous connection when connecting the lead wires to the terminal. In addition, when six lead wires are bundled, it may be difficult to adjust the orientation of only some of the lead wires during wiring work, and workability when connecting lead wires to the terminal may be reduced. is there.

  Further, when the lead wire assembly as shown in FIG. 11 is used, since the three lead wires R1, R2 and R3 connected to the three phases are grouped into one set on the terminal side, When connecting a pair of lead wires in the same phase, the wiring of the lead wires is likely to be complicated, which may cause erroneous connection.

  An object of the present invention is to provide a compressor in which a stator coil of a motor and a terminal are connected by six lead wires, which is excellent in assemblability and easily prevents erroneous lead wire connections. .

  A compressor according to a first aspect of the present invention includes a motor, a casing, a terminal, and a lead wire assembly. The motor has a stator coil. The casing houses the motor. The terminal is attached to the casing. The lead wire assembly connects the stator coil and the terminal. The lead wire assembly includes first to sixth lead wires and first to fifth bundled strings. The first lead wire and the second lead wire are connected to the first phase of the terminal. The third lead wire and the fourth lead wire are connected to the second phase of the terminal. The fifth lead wire and the sixth lead wire are connected to the third phase of the terminal. The first lead wire and the second lead wire are bundled by the first bundle string. The distances from the first bundled string to the terminal ends of the first lead wire and the second lead wire are equal to each other at the first distance. The third lead wire and the fourth lead wire are bundled by the second bundle string. The distances from the second bundled string to the terminal ends of the third lead wire and the fourth lead wire are equal to each other at the second distance. The fifth lead wire and the sixth lead wire are bundled by the third bundle string. The distances from the third bundled string to the terminal ends of the fifth lead wire and the sixth lead wire are equal to the third distance. The first distance, the second distance, and the third distance are different from each other. The first lead wire, the second lead wire, and the third lead wire are bundled by the fourth bundle string on the stator coil side with respect to the first bundle string and the second bundle string. The fourth lead wire, the fifth lead wire, and the sixth lead wire are bundled by the fifth bundle cord on the stator coil side with respect to the second bundle cord and the third bundle cord.

  Here, three pairs of lead wires, each connected to the same phase of the terminal, are bundled together by first to third bundled strings. Moreover, in each pair of lead wires bundled by the first to third bundle cords, the distance from the bundle cord (first, second, or third) bundle cords to the tip of the lead wire on the terminal side is Each is equal. In addition, the distance from the bundled cord to the tip of the pair of lead wires bundled by the bundled cord varies depending on the group of lead wires (phase of the terminal to which the lead wire is connected). Therefore, when connecting the lead wire to the terminal, it is easy to prevent the lead wire to be connected to the same phase from being erroneously connected to different phases.

  Here, on the stator coil side, a pair of lead wires connected to the first phase of the terminal and one of the pair of lead wires connected to the second phase of the terminal are bundled by the fourth bundle string. The other one of the pair of lead wires connected to the second phase of the terminal and the pair of lead wires connected to the third phase of the terminal are bundled by the fifth bundle string. For this reason, a lead wire can be managed as one. In particular, here, on the stator coil side, not all the lead wires are bundled with one bundled string, but three bundles are bundled with two bundled strings. It is relatively easy to individually adjust the compressor, and the assembly of the compressor can be improved.

  The compressor which concerns on the 2nd viewpoint of this invention is a compressor which concerns on a 1st viewpoint, Comprising: A terminal is attached to the front-end | tip of the 1st-6th lead wire, respectively. The terminal includes three pins extending in parallel to each other toward the center of the compressor, and a pair of terminal plates facing each other and fixed to the pins. A pair of terminal plates of each pin includes a terminal of the first lead wire and a terminal of the second lead wire, a terminal of the third lead wire and a terminal of the fourth lead wire, a terminal of the fifth lead wire, and a terminal of the fifth lead wire, respectively. 6 lead wire terminals are connected. When each pin is viewed from the direction in which the pin extends, the direction in which the plane of the terminal plate extends varies from pin to pin.

  When six lead wires are bundled by one bundled string, it is not easy to individually adjust the direction of each lead wire. Therefore, when the terminal is viewed from the direction in which the pins extend, if the planes of the pair of terminal plates fixed to the three pins extend in different directions, the direction of each lead wire is not bundled with a bundled string. It is necessary to adjust it accurately.

  On the other hand, here, since the lead wire is bundled by a bundled string different for each of the three lead wires on the stator coil side, compared to a case where all of the lead wires are bundled by one bundled string, When connecting terminals to the board, it is relatively easy to individually change the direction of each lead wire. Therefore, it is not necessary to adjust the direction of the lead wire before bundling with a bundling string, and the assemblability of the compressor can be improved.

  The compressor which concerns on the 3rd viewpoint of this invention is a compressor which concerns on the 1st viewpoint or the 2nd viewpoint, Comprising: The 4th bundle string and the 5th bundle string are fixed with the varnish together with the stator coil.

  Here, since the fourth and fifth bundled strings are fixed to the stator coil with varnish, it is possible to prevent the lead wires from vibrating and causing noise during operation of the compressor.

  In the compressor according to the present invention, the three pairs of lead wires each connected to the same phase of the terminal are bundled together by the first to third bundled strings. Moreover, in each pair of lead wires bundled by the first to third bundle cords, the distance from the bundle cord (first, second, or third) bundle cords to the tip of the lead wire on the terminal side is Each is equal. In addition, the distance from the bundled cord to the tip of the pair of lead wires bundled by the bundled cord varies depending on the group of lead wires (phase of the terminal to which the lead wire is connected). Therefore, when connecting each lead wire to the terminal, it is easy to prevent the lead wire to be connected in the same phase from being erroneously connected to different phases.

  Here, on the stator coil side, a pair of lead wires connected to the first phase of the terminal and one of the pair of lead wires connected to the second phase of the terminal are bundled by the fourth bundle string. The other one of the pair of lead wires connected to the second phase of the terminal and the pair of lead wires connected to the third phase of the terminal are bundled by the fifth bundle string. For this reason, six lead wires can be managed as one. In particular, here, on the stator coil side, not all six lead wires are bundled with one bundled string, but three lead wires are bundled with two bundled strings, so the lead wire terminal When connecting, it is relatively easy to individually adjust the direction of each lead wire, and the assembly of the compressor can be improved.

It is a schematic longitudinal cross-sectional view of the scroll compressor of one Embodiment of the compressor which concerns on this invention. It is a longitudinal cross-sectional view of the terminal of the scroll compressor of FIG. It is the side view which looked at the terminal of FIG. 2 from the direction inside a casing and a terminal pin is extended. FIG. 2 is a schematic plan view of a stator and lead wire assembly of the motor of the scroll compressor of FIG. 1. FIG. 5 is a schematic view of the lead wire assembly of FIG. 4. FIG. 5 is a schematic external view of a first terminal for explaining a shape of a terminal of the lead wire assembly of FIG. 4. FIG. 2 is a diagram schematically illustrating a connection state between a terminal plate of a terminal and a terminal of a lead wire in the scroll compressor of FIG. 1. FIG. 7 is a view of the terminal as viewed from the inside of the casing along the direction in which the terminal pin extends. Here, with respect to the terminal, a state in which the terminal plate connecting portion of the terminal is cut in a cross section perpendicular to the terminal pin is drawn. FIG. 2 is a diagram depicting a connection state between terminals and lead wires in the scroll compressor of FIG. 1. FIG. 8 is a view of the terminal as viewed from the inside of the casing along the direction in which the terminal pin extends. It is the figure which drawn the connection state of the terminal provided with the terminal board which does not have an extension part, and a lead wire in the scroll compressor of the modification D. FIG. 9 is a view of the terminal as viewed from the inside of the casing along the direction in which the terminal pin extends. It is the figure which drawn typically the connection state of the terminal board of a terminal, and the terminal of a lead wire in the scroll compressor of the modification D. FIG. 10 is a view of the terminal as viewed from the inside of the casing along the direction in which the terminal pin extends. Here, with respect to the terminal, a state in which the terminal plate connecting portion of the terminal is cut in a cross section perpendicular to the terminal pin is drawn. It is the schematic diagram which drawn the method of bundling with the bundling cord of the lead wire in the conventional lead wire assembly.

  A compressor according to an embodiment of the present invention will be described with reference to the drawings. The following embodiments are merely examples, and can be appropriately changed without departing from the gist of the present invention.

(1) Overall Configuration A scroll compressor 10 according to an embodiment of the present invention will be described. The scroll compressor 10 is used for an outdoor unit of an air conditioner, for example, and constitutes a part of a refrigerant circuit of the air conditioner.

  FIG. 1 is a schematic longitudinal sectional view of a scroll compressor 10 according to an embodiment. The scroll compressor 10 includes a casing 20 (see FIG. 1), a compression mechanism 30 (see FIG. 1), a motor 40 (see FIG. 1), a crankshaft 50 (see FIG. 1), a terminal 60 (see FIG. 1), and a lead wire. It mainly has an assembly 100 (see FIG. 4) and a lower bearing 90 (see FIG. 1).

(2) Detailed Configuration The casing 20, the compression mechanism 30, the motor 40, the crankshaft 50, the terminal 60, the lead wire assembly 100, and the lower bearing 90 of the scroll compressor 10 will be described below.

  In the following description, expressions such as “upper” and “lower” may be used to describe the direction and arrangement, but the direction of the arrow U in FIG. To do. In the following explanation, expressions such as parallel, right angle, horizontal, vertical, etc. may be used, but this is substantially parallel, right angle, horizontal, vertical, etc., that is, substantially parallel, substantially right angle, substantially Including the case of horizontal, substantially vertical, etc.

(2-1) Casing The casing 20 includes a cylindrical member 21 that is open at the top and bottom, and an upper lid 22a and a lower lid 22b that are respectively provided at the upper end and the lower end of the cylindrical member 21 (see FIG. 1). The cylindrical member 21 and the upper lid 22a and the lower lid 22b are fixed by welding so as to keep airtightness.

  The casing 20 accommodates the components of the scroll compressor 10 including the compression mechanism 30, the motor 40, the crankshaft 50, the lead wire assembly 100, and the lower bearing 90 (see FIG. 1). A terminal 60 is attached to the side surface of the cylindrical member 21 of the casing 20.

  An upper portion of the casing 20 is provided with a suction pipe 23 that sucks a low-pressure gas refrigerant to be compressed by the compression mechanism 30 from a refrigerant circuit to which the scroll compressor 10 is connected, through the upper cover 22a of the casing 20. (See FIG. 1). The lower end of the suction pipe 23 is connected to a fixed scroll 31 of the compression mechanism 30 described later. The suction pipe 23 communicates with the compression chamber Sc of the compression mechanism 30.

  A discharge pipe 24 through which a gas refrigerant discharged to the outside of the casing 20 passes is provided at an intermediate portion of the cylindrical member 21 of the casing 20 (see FIG. 1). The gas refrigerant sucked from the suction pipe 23 and compressed by the compression mechanism 30 passes through the discharge pipe 24 and is discharged out of the casing 20.

(2-2) Compression Mechanism The compression mechanism 30 mainly includes a housing 33, a fixed scroll 31 disposed above the housing 33, a movable scroll 32 disposed between the fixed scroll 31 and the housing 33, (See FIG. 1).

  In the compression mechanism 30, with the lower surface of the fixed scroll 31 and the upper surface of the movable scroll 32 facing each other, a spiral fixed side wrap 31 a that protrudes downward from the lower surface of the fixed scroll 31, and upward from the upper surface of the movable scroll 32. A protruding spiral movable wrap 32a is combined. As a result, a compression chamber Sc is formed between the adjacent fixed wrap 31a and the movable wrap 32a.

  The movable scroll 32 is connected to the crankshaft 50 by inserting the eccentric portion 51 of the crankshaft 50 into a boss portion 32b provided in the lower portion thereof. The crankshaft 50 is also connected to a rotor 45 of the motor 40 described later. When the motor 40 is driven and the crankshaft 50 connected to the rotor 45 rotates, the movable scroll 32 revolves around the fixed scroll 31 without rotating. As a result, the refrigerant in the compression chamber Sc is compressed. The refrigerant compressed in the compression chamber Sc is discharged upward from a discharge port 31 b formed in the upper part of the fixed scroll 31, passes through a refrigerant passage (not shown) formed in the fixed scroll 31 and the housing 33, and then the housing 33. Flows into the space below.

  The housing 33 is press-fitted into the cylindrical member 21 of the casing 20, and the entire outer periphery of the housing 33 is fixed to the inner peripheral surface of the cylindrical member 21. A fixed scroll 31 is fixed to the upper surface of the housing 33. The housing 33 supports the movable scroll 32 from below. Further, an upper bearing 35 that pivotally supports the crankshaft 50 is provided at the lower portion of the housing 33 (see FIG. 1). The upper bearing 35 rotatably supports the main shaft 52 of the crankshaft 50.

(2-3) Motor The motor 40 is supplied with a three-phase alternating current via the terminal 60 and the lead wire assembly 100 and drives the compression mechanism 30. The motor 40 is disposed between an upper bearing 35 provided in the housing 33 and a lower bearing 90 described later (see FIG. 1).

  The motor 40 mainly includes a stator 41 and a rotor 45 (see FIG. 1). The stator 41 is formed in a cylindrical shape. Inside the stator 41 (hollow part), the rotor 45 is accommodated via a slight gap (air gap G) (see FIG. 1).

  The stator 41 includes a stator core 42, an insulator 43, and a stator coil 44 (see FIG. 1).

  The stator core 42 is formed in a cylindrical shape. The stator core 42 is fixed to the inner peripheral surface of the cylindrical member 21 of the casing 20. A core cut portion 42a is formed on a part of the cylindrical outer peripheral surface of the stator core 42 so as to be recessed toward the center in the radial direction (see FIG. 1).

  The insulator 43 is attached to both upper and lower ends of the stator core 42. The insulator 43 is provided to insulate the stator core 42 and the stator coil 44 from each other.

  The stator coil 44 is wound around the stator core 42 and the insulator 43. The three phases (U phase, V phase, and W phase) of the stator coil 44 are respectively the first lead wire 210 and the second lead wire 220, the third lead wire 230, and the fourth lead of the lead wire assembly 100 described later. The wire 240 is connected to the fifth lead wire 250 and the sixth lead wire 260 (see FIG. 5). The stator coil 44 is connected to a terminal 60 described later by the lead wire assembly 100.

  The rotor 45 is rotatably accommodated in the hollow portion of the stator 41. A central hole 45a for inserting the main shaft 52 of the crankshaft 50 is formed in the central portion of the rotor 45 (see FIG. 1). By inserting the main shaft 52 into the central hole 45 a of the rotor 45, the rotor 45 is connected to the movable scroll 32 via the crankshaft 50.

  A plurality of permanent magnets (not shown) are embedded in the rotor 45. When a current is supplied to the stator coil 44, a rotating magnetic field is generated. The rotor 45 rotates when the permanent magnet provided on the rotor 45 is affected by the rotating magnetic field, and rotates the movable scroll 32 connected via the crankshaft 50.

  A lower balance weight 80 is attached below the rotor 45. The lower balance weight 80 is used together with an upper balance weight 53 to be described later, thereby eliminating the unbalance of the mass distribution of the rotating body including the rotor 45 and the crankshaft 50 of the motor 40 and suppressing the vibration of the rotating body.

(2-4) Crankshaft The crankshaft 50 is a transmission shaft that transmits the driving force of the motor 40 to the movable scroll 32. The crankshaft 50 is disposed so as to extend in the vertical direction along the axial center of the cylindrical member 21 of the casing 20, and connects the rotor 45 of the motor 40 and the movable scroll 32 of the compression mechanism 30 (see FIG. 1).

  The crankshaft 50 has a main shaft 52 in which the central axis O of the cylindrical member 21 coincides with the central axis O, and an eccentric portion 51 that is eccentric with respect to the central axis O of the main shaft 52 (relative to the axial center of the cylindrical member 21). (See FIG. 1).

  The eccentric portion 51 is disposed at the upper end of the main shaft 52 and is connected to the boss portion 32 b of the movable scroll 32.

  The main shaft 52 is rotatably supported by an upper bearing 35 provided in the housing 33 and a lower bearing 90 described later. The main shaft 52 is connected to the rotor 45 of the motor 40 between the upper bearing 35 and the lower bearing 90. The main shaft 52 rotates around a central axis O extending in the vertical direction (see FIG. 1). An upper balance weight 53 is attached to the main shaft 52. The upper balance weight 53 is disposed above the rotor 45 and below the housing 33 (see FIG. 1).

(2-5) Terminal The terminal 60 is attached to the cylindrical member 21 of the casing 20. The terminal 60 mainly includes a terminal body 61, three terminal pins 62 as an example of pins, and a terminal plate 63 provided on each terminal pin 62 by two (see FIG. 2).

  The terminal body 61 is a member that supports the three terminal pins 62. The terminal body 61 is fixed to the cylindrical member 21 by welding.

  The terminal pin 62 is an example of a pin. The terminal pin 62 is formed in a cylindrical shape. The terminal pin 62 extends through the terminal body 61 from the outside of the casing 20 to the inside of the casing 20 (see FIG. 2). The terminal pin 62 extends from the outside of the casing 20 toward the center of the scroll compressor 10, in other words, toward the center of the cylindrical member 21 (see FIG. 2). The three terminal pins 62 each extend in parallel with the other terminal pins 62.

  A pair of terminal plates 63 are fixed to the inside of the casing 20 of each terminal pin 62 (see FIGS. 2 and 3). A pair of terminal plates 63 fixed to each terminal pin 62 face each other in parallel (see FIG. 3). The terminal plates 63 are fixed to the side surfaces of the terminal pins 62, respectively, and extend further to the inside (center side of the scroll compressor 10) than the end of the terminal pin 62 on the center side of the scroll compressor 10 (FIG. 2). reference). Each terminal plate 63 is connected to a terminal 400 attached to the tip of the end of a lead wire 200 of a lead wire assembly 100 described later. Connection between the terminal plate 63 and the terminal 400 will be described later.

  When the terminal pin 62 is viewed from the direction in which the terminal pin 62 extends (from the inside of the casing 20 along the axial direction of the terminal pin 62), the plane of the terminal plate 63 extends (the plane expands). The terminal pin 63 to which the terminal plate 63 is attached differs for each terminal pin 62 (see FIG. 3). That is, the plane of the terminal plate 63 attached to each terminal pin 62 is not parallel to any of the planes of the terminal plates 63 attached to the other terminal pins 62 (see FIG. 3).

  An external power source is connected to the outside of the casing 20 of the terminal pin 62.

(2-6) Lead Wire Assembly The lead wire assembly 100 connects the stator coil 44 and the terminal 60.

  The lead wire assembly 100 includes a lead wire 200, a bundled string 300, and a terminal 400 (see FIG. 4).

  The lead wire 200 is a conducting wire that connects the stator coil 44 and the terminal 60. The lead wire 200 includes a first lead wire 210, a second lead wire 220, a third lead wire 230, a fourth lead wire 240, a fifth lead wire 250, and a sixth lead wire 260 (see FIG. 5). The first lead wire 210 and the second lead wire 220 have one end connected to the U phase of the terminal 60 and the other end connected to the U phase of the stator coil 44. The third lead wire 230 and the fourth lead wire 240 have one end connected to the V phase of the terminal 60 and the other end connected to the V phase of the stator coil 44. The fifth lead wire 250 and the sixth lead wire 260 have one end connected to the W phase of the terminal 60 and the other end connected to the W phase of the stator coil 44. That is, here, the U phase, V phase, and W phase of the stator coil 44 are connected to the U phase, V phase, and W phase of the terminal 60 by two lead wires, respectively.

  The first lead wire 210 and the second lead wire 220 connected to the U phase, the third lead wire 230 and the fourth lead wire 240 connected to the V phase, and the fifth lead wire connected to the W phase. 250 and the sixth lead wire 260 have different coating colors.

  The terminal 400 is a member that is attached to the tip of the lead wire 200 on the terminal 60 side and connected to the terminal plate 63 fixed to the terminal pin 62. The terminal 400 is a faston terminal. The terminal 400 is a so-called flag-type terminal in which the lead wire 200 connected to the terminal 400 is arranged so as to be orthogonal to the insertion / extraction direction of the terminal 400 (direction of attaching / detaching the terminal 400 to / from the terminal plate 63). The terminal 400 includes a first terminal 410, a second terminal 420, a third terminal 430, a fourth terminal 440, a fifth terminal 450, and a sixth terminal 460 (see FIG. 5). The first terminal 410, the second terminal 420, the third terminal 430, the fourth terminal 440, the fifth terminal 450, and the sixth terminal 460 are respectively the first lead wire 210, the second lead wire 220, and the third lead. The wire 230, the fourth lead wire 240, the fifth lead wire 250, and the sixth lead wire 260 are attached to the tips (tips on the terminal 60 side). Each of the first terminal 410 and the second terminal 420 is connected to one of a pair of terminal plates 63 fixed to the U-phase terminal pin 62 of the terminal 60. Each of the third terminal 430 and the fourth terminal 440 is connected to one of a pair of terminal plates 63 fixed to the V-phase terminal pin 62 of the terminal 60. Each of the fifth terminal 450 and the sixth terminal 460 is connected to one of a pair of terminal plates 63 fixed to the W-phase terminal pin 62 of the terminal 60. When the scroll compressor 10 is assembled, for example, the terminal 400 is a casing in the order of the first terminal 410 and the second terminal 420, the third terminal 430 and the fourth terminal 440, the fifth terminal 450 and the sixth terminal 460. The terminal plate 63 of the terminal 60 fixed to the 20 cylindrical members 21 is connected.

  The shape of the terminal 400 will be further described. Here, the shape of the terminal 400 will be described with reference to a schematic external view of the first terminal 410 shown in FIG. Since the shapes of the second terminal 420, the third terminal 430, the fourth terminal 440, the fifth terminal 450, and the sixth terminal 460 are the same as the shape of the first terminal 410, the drawings and description are omitted.

  The first terminal 410 includes a terminal plate connecting portion 410a connected to the terminal plate 63 and a lead wire connecting portion 410b connected to the first lead wire 210 (see FIG. 6).

  The terminal board connection part 410a is formed in a cylindrical shape, and the terminal board 63 is inserted therein. In addition, on the side surface of the terminal plate connection portion 410a, it extends in the axial direction of the cylindrical terminal plate connection portion 410a, in other words, the insertion / removal direction of the first terminal 410 (attachment / removal direction of the first terminal 410 with respect to the terminal plate 63). A slot 410aa (see FIG. 6) is formed. Since the slot 410aa is provided, the cross section of the cylindrical terminal board connecting portion 410a is not circular but is generally C-shaped (see FIG. 7). Both end portions of the cylindrical terminal plate connecting portion 410a are open, and when the first terminal 410 and the terminal plate 63 are connected, the terminal plate 63 is inserted from one end opening 410ab (see FIG. 6). Is done. The end opening 410ab is an opening for inserting the terminal plate 63 into the terminal plate connecting portion 410a. The other end opening 410ac is adjacent to the lead wire connecting portion 410b, and the end opening 410ac is closed by the lead wire connecting portion 410b, so that the terminal plate 63 is inserted from the end opening 410ac. Can not.

  The lead wire connecting portion 410b is formed in a cylindrical shape. By inserting and fixing the uncovered portion of the first lead wire 210 in the hollow portion of the lead wire connecting portion 410b, the first terminal 410 and the first lead wire 210 are connected.

  FIG. 7 is a diagram schematically showing the terminal plate 63 fixed to the U-phase terminal pin 62 of the terminal 60, and the first terminal 410 and the second terminal 420 connected to the terminal plate 63. Below, based on FIG. 7, the connection state of the 1st terminal 410 and the 2nd terminal 420 and the terminal board 63 is demonstrated.

  The shapes of the third terminal 430, the fourth terminal 440, the fifth terminal 450, and the sixth terminal 460, the third terminal 430, the fourth terminal 440, the fifth terminal 450, the sixth terminal 460, and the terminal plate 63 are described. The connection state between the first terminal 410 and the second terminal 420 and the connection state between the first terminal 410 and the second terminal 420 and the terminal plate 63 are omitted.

  The cross section perpendicular to the axial direction of the terminal pin 62 (the direction in which the terminal pin 62 extends) shows the terminal plate connecting portion 410a of the first terminal 410 and the terminal plate connecting portion 420a of the second terminal 420 attached to the terminal plate 63. The terminal plate connection portion 410a and the terminal plate connection portion 420a are formed in a C shape when cut at (see FIG. 7). The terminal plate connection portion 410 a and the terminal plate connection portion 420 a are formed in a cylindrical shape that extends in the axial direction of the terminal pin 62 while being attached to the terminal plate 63. In a state where the first terminal 410 and the second terminal 420 are connected to the terminal plate 63, the terminal plate 63 is disposed inside the terminal plate connecting portion 410a and the terminal plate connecting portion 420a (see FIG. 7). . More specifically, in a state in which the first terminal 410 and the second terminal 420 are connected to the terminal plate 63, the terminal plate connection portion 410 a and the terminal plate connection portion 420 a are more inside than the terminal pins 62 of the terminal plate 63. A portion extending to the center side of the scroll compressor 10 is arranged. When attaching the first terminal 410 and the second terminal 420 to the terminal plate 63, the terminal plate 63 is inserted into the cylindrical terminal plate connecting portion 410a and the terminal plate connecting portion 420a having a C-shaped cross section. The terminal board connection part 410a and the terminal board connection part 420a are moved along the axial direction of the terminal pin 62. In addition, the cylindrical terminal board connection part 410a and the terminal board connection part 420a are only from the opening side of one end (for example, in the terminal board connection part 410a, only from the end opening 410ab), the terminal board connection part 410a and the terminal board. The terminal plate 63 can be inserted into the connection part 420a. As shown in FIG. 7, the first terminal 410 and the second terminal 420 extend from the first terminal 410 and the second terminal 420 downward in FIG. When the slot 410aa of the 410a and the slot 420aa of the terminal plate connecting portion 420a face rightward, the terminal plate 63 can be inserted only from the end portions of the cylindrical first terminal 410 and the second terminal 420 on the far side of the paper surface. It is configured. Note that the configuration of FIG. 7 is an example, and the present invention is not limited to this. For example, contrary to FIG. 7, the first terminal 410 and the second terminal 420 have a first lead wire 210 and a second lead wire 220 extending downward from the first terminal 410 and the second terminal 420 in FIG. When the slot 410aa of the plate connecting portion 410a and the slot 420aa of the terminal plate connecting portion 420a are directed leftward, the terminal plate 63 is formed only from the end portions of the cylindrical first terminal 410 and the second terminal 420 on the far side of the paper surface. It may be configured to be insertable. When the first terminal 410 and the second terminal 420 are viewed in the same direction, in other words, along the axial direction of the terminal pin 62, the C-shaped openings (slots 410aa and 420aa) have the same direction (right in FIG. 7). It is attached to the terminal pin 62 so as to face the direction.

  Here, the terminal plate 63 extends further inward than the end of the terminal pin 62 on the center side of the scroll compressor 10. The first terminal 410 and the second terminal 420 are attached to a portion of the terminal plate 63 that extends from the terminal pin 62 toward the center of the scroll compressor 10. Therefore, even if the first terminal 410 and the second terminal 420 are attached to the terminal plate 63 in the same direction, neither the first terminal 410 nor the second terminal 420 contacts the terminal pin 62. In other words, even if the first terminal 410 and the second terminal 420 are attached to the terminal plate 63 in the same direction, the terminal pin 62 does not hinder the attachment of the first terminal 410 and the second terminal 420.

  If the terminal plate 63 fixed to the inner side of the terminal pin 62 does not extend to the inner side of the end of the terminal pin 62 on the center side of the scroll compressor 10, one terminal is the terminal pin. 62 is contacted. For example, when the first terminal 410 and the second terminal 420 are attached in a direction as shown in FIG. 7 to the terminal plate 63 that does not extend to the inner side of the end of the terminal pin 62 on the center side of the scroll compressor 10, As for the terminal 410, the terminal pin 62 is disposed in the slot 410 aa of the terminal plate connection part 410 a, so that the first terminal 410 does not contact the terminal pin 62. However, as for the second terminal 420, since the slot 420aa opens on the side opposite to the terminal pin 62, the terminal plate connecting portion 420a contacts the terminal pin 62, and it is difficult to attach the second terminal 420 to the terminal plate 63. is there.

  From each of the first terminal 410 and the second terminal 420 connected to the terminal plate 63, the first lead wire 210 and the second lead wire 220 extend in the same direction with respect to the terminal pin 62 (see FIGS. 7 and 8). ). For example, in FIG. 7, from each of the first terminal 410 and the second terminal 420 connected to the terminal plate 63, the first lead wire 210 and the second lead wire 220 are located below the terminal pin 62 in FIG. Extend. Therefore, here, it is easy to orderly connect the plurality of lead wires 200 and the terminal pins 62 (see FIG. 8).

  The bundled string 300 is a string for bundling a plurality of lead wires 200. The lead wires 200 bundled by the bundled string 300 are strongly bound by the bundled string 300 so as not to be separated. The bundled string 300 includes a first bundled string 310, a second bundled string 320, a third bundled string 330, a fourth bundled string 340, and a fifth bundled string 350 (see FIG. 5). The first lead wire 210 and the second lead wire 220 are bundled by a first bundled string 310 (see FIG. 5). The distances (the lengths of the lead wires) from the first bundled string 310 to the tips of the first lead wire 210 and the second lead wire 220 on the terminal 60 side are equal to the first distance L1 (see FIG. 5). The first distance L1 is such that the first terminal 410 and the second terminal 420 at the tips of the first lead wire 210 and the second lead wire 220 are attached to the terminal plate 63 of a predetermined (U-phase) terminal pin 62 of the terminal 60. So that the first lead wire 210 and the second lead wire 220 are not excessively tensioned, and the first lead wire 210 and the second lead wire 220 are not excessively loosened. The appropriate length is determined. The 3rd lead wire 230 and the 4th lead wire 240 are bundled by the 2nd bundled string 320 (refer FIG. 5). The distances from the second bundled string 320 to the tips of the third lead wire 230 and the fourth lead wire 240 on the terminal 60 side are equal to the second distance L2 (see FIG. 5). In the second distance L2, the third terminal 430 and the fourth terminal 440 at the tips of the third lead wire 230 and the fourth lead wire 240 are attached to the terminal plate 63 of a predetermined (V phase) terminal pin 62 of the terminal 60. So that the third lead wire 230 and the fourth lead wire 240 are not excessively tensioned and the third lead wire 230 and the fourth lead wire 240 are not excessively loosened. The appropriate length is determined. The fifth lead wire 250 and the sixth lead wire 260 are bundled by the third bundled string 330 (see FIG. 5). The distances from the third bundle string 330 to the distal ends of the fifth lead wire 250 and the sixth lead wire 260 on the terminal 60 side are equal to the third distance L3 (see FIG. 5). The third distance L3 is such that the fifth terminal 450 and the sixth terminal 460 at the tips of the fifth lead wire 250 and the sixth lead wire 260 are attached to the terminal plate 63 of a predetermined (W-phase) terminal pin 62 of the terminal 60. So that the fifth lead wire 250 and the sixth lead wire 260 are not excessively tensioned, and the fifth lead wire 250 and the sixth lead wire 260 are not excessively loosened. The appropriate length is determined. In order to prevent incorrect wiring of the lead wire 200, the first distance L1, the second distance L2, and the third distance L3 are set to different values.

  The first lead wire 210, the second lead wire 220, and the third lead wire 230 are bundled by the fourth bundle string 340 on the stator coil 44 side of the first bundle string 310 and the second bundle string 320 (FIG. 5). reference). The fourth lead wire 240, the fifth lead wire 250, and the sixth lead wire 260 are bundled by the fifth bundle cord 350 on the stator coil 44 side of the second bundle cord 320 and the third bundle cord 330 (FIG. 5). reference).

  The portion of the lead wire 200 of the lead wire assembly 100 that is bundled by the fourth bundle string 340 and the fifth bundle string 350 is fixed together with the stator coil 44 by varnish (for example, resin).

(2-7) Lower Bearing The lower bearing 90 is a bearing that supports the crankshaft 50 and is disposed below the motor 40 (see FIG. 1). The lower bearing 90 is fixed to the cylindrical member 21 of the casing 20. The lower bearing 90 rotatably supports the main shaft 52 of the crankshaft 50.

(3) Description of operation of scroll compressor The operation of the scroll compressor 10 will be described.

  When electric current is supplied to the stator coil 44 via the terminal 60 and the lead wire assembly 100 and the motor 40 is driven, the rotor 45 rotates and the crankshaft 50 connected to the rotor 45 rotates. The movable scroll 32 is driven by the rotation of the crankshaft 50. The movable scroll 32 revolves with respect to the fixed scroll 31 without rotating.

  As the movable scroll 32 revolves, the volume of the compression chamber Sc of the compression mechanism 30 changes periodically. When the volume of the compression chamber Sc increases, a low-pressure gas refrigerant is supplied to the compression chamber Sc through the suction pipe 23. More specifically, when the volume of the compression chamber Sc on the outermost peripheral side increases, the low-pressure gas refrigerant supplied from the suction pipe 23 is supplied to the compression chamber Sc on the outermost peripheral side. On the other hand, when the volume of the compression chamber Sc decreases, the gas refrigerant is compressed in the compression chamber Sc, and finally becomes a high-pressure gas refrigerant. The high-pressure gas refrigerant is discharged from the discharge port 31 b located near the center of the upper surface of the fixed scroll 31. The high-pressure gas refrigerant discharged from the discharge port 31 b passes through a refrigerant passage (not shown) formed in the fixed scroll 31 and the housing 33 and flows into a space below the housing 33. The high-pressure gas refrigerant compressed by the compression mechanism 30 is finally discharged out of the scroll compressor 10 from the discharge pipe 24.

(4) Features (4-1)
The scroll compressor 10 of this embodiment includes a motor 40, a casing 20, a terminal 60, and a lead wire assembly 100. The motor 40 has a stator coil 44. The casing 20 accommodates the motor 40. The terminal 60 is attached to the casing 20. The lead wire assembly 100 connects the stator coil 44 and the terminal 60. The lead wire assembly 100 includes a lead wire 200 and a bundled string 300. The lead wire 200 includes a first lead wire 210, a second lead wire 220, a third lead wire 230, a fourth lead wire 240, a fifth lead wire 250, and a sixth lead wire 260. The bundled string 300 includes a first bundled string 310, a second bundled string 320, a third bundled string 330, a fourth bundled string 340, and a fifth bundled string 350. First lead wire 210 and second lead wire 220 are connected to the U phase as an example of the first phase of terminal 60. Third lead wire 230 and fourth lead wire 240 are connected to the V phase as an example of the second phase of terminal 60. The fifth lead wire 250 and the sixth lead wire 260 are connected to the W phase as an example of the third phase of the terminal. The first lead wire 210 and the second lead wire 220 are bundled by a first bundled string 310. The distances from the first bundled string 310 to the ends of the first lead wire 210 and the second lead wire 220 on the terminal 60 side are equal to each other at the first distance L1. The third lead wire 230 and the fourth lead wire 240 are bundled by the second bundle string 320. The distances from the second bundled string 320 to the tips of the third lead wire 230 and the fourth lead wire 240 on the terminal 60 side are equal to each other at the second distance L2. The fifth lead wire 250 and the sixth lead wire 260 are bundled by the third bundle cord 330. The distances from the third bundle string 330 to the distal ends of the fifth lead wire 250 and the sixth lead wire 260 on the terminal 60 side are equal to the third distance L3. The first distance L1, the second distance L2, and the third distance L3 are different from each other. The first lead wire 210, the second lead wire 220, and the third lead wire 230 are bundled by the fourth bundle string 340 on the stator coil 44 side of the first bundle string 310 and the second bundle string 320. The fourth lead wire 240, the fifth lead wire 250, and the sixth lead wire 260 are bundled by the fifth bundle cord 350 on the stator coil 44 side of the second bundle cord 320 and the third bundle cord 330.

  Here, three pairs of lead wires (first lead wire 210 and second lead wire 220, third lead wire 230 and fourth lead wire 240, and fifth lead each connected to the same phase of terminal 60 are used. The wire 250 and the sixth lead wire 260) are bundled together by the first bundled cord 310, the second bundled cord 320, and the third bundled cord 330, respectively. Also, each pair of lead wires (first lead wire 210 and second lead wire 220, third lead wire 230 and fourth wire) bundled by the first bundle cord 310, the second bundle cord 320, and the third bundle cord 330. In the lead wire 240, and the fifth lead wire 250 and the sixth lead wire 260), from the bundled string (the first bundled string 310, the second bundled string 320, or the third bundled string 330) that bundles the lead wires, The distance to the tip of the lead wire on the terminal 60 side is the same. In addition, bundled cords (first bundled cord 310, second bundled cord 320) are grouped according to the group of lead wires 200 (phases of terminals 60 to which the lead wires 200 are connected (U phase, V phase, W phase)). Or a pair of lead wires (first lead wire 210 and second lead wire 220, third lead wire 230 and fourth lead wire 240, or fifth lead wire bundled from the third bundle cord 330). The distance between the lead wire 250 and the sixth lead wire 260) to the tip on the terminal 60 side is different. Therefore, when connecting the lead wire 200 to the terminal 60, the lead wires to be connected in the same phase (the first lead wire 210 and the second lead wire 220, the third lead wire 230 and the fourth lead wire 240, and the fifth lead It is easy to prevent the wire 250 and the sixth lead wire 260) from being erroneously connected to different phases.

  Furthermore, here, the first lead wire 210 and the second lead wire 220 connected to the U phase, the third lead wire 230 and the fourth lead wire 240 connected to the V phase, and the first lead wire 210 connected to the W phase. Since the 5 lead wires 250 and the sixth lead wires 260 have different coating colors, erroneous connection of the lead wires 200 can be further prevented.

  Further, here, on the stator coil 44 side, out of the pair of first lead wires 210 and second lead wires 220 connected to the U phase of the terminal 60 and the pair of lead wires connected to the V phase of the terminal 60 (The third lead wire 230) is bundled by the fourth bundle string 340. Then, the other one (fourth lead wire 240) of the pair of lead wires connected to the V phase of the terminal 60, and the pair of fifth lead wire 250 and sixth lead wire connected to the W phase of the terminal 60. 260 are bundled by a fifth bundled string 350. For this reason, the lead wire 200 can be managed as an integral unit. In particular, here, on the stator coil 44 side, the entire lead wire 200 is not bundled with one bundled string, but is bundled with two bundled strings three by three, so that the lead wire 200 is connected to the terminal 60. Sometimes, it is relatively easy to individually adjust the direction of the lead wire 200, and the assembly of the scroll compressor 10 can be improved.

(4-2)
In the scroll compressor 10 of the present embodiment, the first lead wire 210, the second lead wire 220, the third lead wire 230, the fourth lead wire 240, the fifth lead wire 250, and the sixth lead wire 260 are arranged at the tips. Are each equipped with a terminal 400. The terminal 60 includes three terminal pins 62 extending parallel to each other toward the center side of the scroll compressor 10, and a pair of mutually opposing terminal plates 63 fixed to the terminal pins 62. The pair of terminal plates 63 of each terminal pin 62 includes a first terminal 410 of the first lead wire 210 and a second terminal 420 of the second lead wire 220 and a third terminal 430 and a third terminal of the third lead wire 230, respectively. The fourth terminal 440 of the four lead wire 240 is connected to the fifth terminal 450 of the fifth lead wire 250 and the sixth terminal 460 of the sixth lead wire 260. When each terminal pin 62 is viewed from the direction in which the terminal pin 62 extends, the direction in which the plane of the terminal plate 63 extends differs for each terminal pin 62.

  When the six lead wires 200 are bundled by one bundled string, it is not easy to individually adjust the direction of each lead wire 200. Therefore, when the terminal 60 is viewed from the direction in which the terminal pin 62 extends, when the planes of the pair of terminal plates 63 fixed to the three terminal pins 62 extend in different directions, the directions of the lead wires 200 are different. Need to be adjusted accurately before bundling with a string.

  On the other hand, here, the lead wire 200 has three lead wires (first lead wire 210, second lead wire 220, third lead wire 230, fourth lead wire 240, on the stator coil 44 side. Since the fifth lead wire 250 and the sixth lead wire 260 are bundled by different bundle strings (the fourth bundle string 340 and the fifth bundle string 350), all of the lead wires 200 are formed by one bundle string. Compared to the case of being bundled, it is relatively easy to individually change the direction of the lead wire 200 when the terminal 400 is connected to the terminal plate 63. Therefore, it is not necessary to adjust the direction of the lead wire 200 before being bundled by the bundled string 300, and the assemblability of the scroll compressor 10 can be improved.

(4-3)
In the scroll compressor 10 of the present embodiment, the fourth bundle string 340 and the fifth bundle string 350 are fixed together with the stator coil 44 by varnish.

  Here, since the fourth bundle string 340 and the fifth bundle string 350 are fixed to the stator coil 44 with a varnish, the lead wire 200 can be prevented from vibrating and causing noise during operation of the scroll compressor 10. .

(5) Modifications Modifications of the above embodiment are shown below. Note that the following modifications may be applied in combination with each other as long as they do not contradict each other.

(5-1) Modification A
The arrangement of the terminal pins 62 of the terminal 60 and the orientation of the terminal plate 63 fixed to each terminal pin 62 are examples, and are not limited thereto.

  For example, the plane of the terminal plate 63 fixed to one terminal pin 62 and the plane of the terminal plate 63 fixed to the other terminal pin 62 may be parallel. However, as in the above-described embodiment, when the extending direction of the terminal plate 63 fixed to the terminal pin 62 is different for each terminal pin 62 when viewed from the direction in which the terminal pin 62 extends, between the terminal pins 62 Even when the distance is relatively close, the connection between the terminal plate 63 of the terminal 60 and the terminal 400 is easy.

(5-2) Modification B
In the above embodiment, the length of the lead wire 200 has the relationship of the first distance L1 <the second distance L2 <the third distance L3, but the first distance L1, the second distance L2, and the third distance L3 The relationship of distance is an example, and is not limited to this.

(5-3) Modification C
The shape of the terminal 400 of the above embodiment is an example, and the present invention is not limited to this. Various shapes can be applied to the shape of the terminal 400.

  In the above embodiment, the lead wire 200 extends from the terminal 400 attached to the pair of terminal plates 63 of each terminal pin 62 to the same side with respect to the terminal pin 62. However, the lead wire 200 is not limited to this, and the lead wire 200 extends from the terminal 400 attached to the pair of terminal plates 63 of each terminal pin 62 to a different side with respect to the terminal pin 62. It may be configured. For example, referring to FIG. 7, the first lead wire 210 is located below the terminal pin 62 from the first terminal 410 attached to the terminal plate 63 in FIG. 7, and the second lead wire 220 is the terminal plate. The second terminal 420 attached to 63 may be configured to extend upward in FIG. 7 with respect to the terminal pin 62.

  However, when a pair of lead wires 200 extend from the terminals 400 attached to the pair of terminal plates 63 of each terminal pin 62 to the same side with respect to the terminal pins 62, either of the pair of lead wires 200 is connected. It is difficult to generate a state in which an excessive tensile force is applied or a state in which one of the pair of lead wires 200 is excessively loosened. Therefore, it is more preferable that the pair of lead wires 200 extend from the terminals 400 attached to the pair of terminal plates 63 of the terminal pins 62 on the same side with respect to the terminal pins 62.

(5-4) Modification D
In the above embodiment, the terminal plate 63 extends to the inner side of the end of the terminal pin 62 on the center side of the scroll compressor 10, but is not limited to this.

  When the terminal plate 63 does not extend inward from the end of the terminal pin 62 on the center side of the scroll compressor 10, the terminal 400 connected to the pair of terminal plates 63 fixed to the same terminal pin 62, The lead wire assembly 100 may be configured such that all the openings (slots) of the terminal plate connecting portion having a C-shaped cross section face the terminal pin 62 side. By configuring the lead wire assembly 100 in this way, the pair of lead wires 200 extend from the terminals 400 attached to the pair of terminal plates 63 of the terminal pins 62 to the same side with respect to the terminal pins 62. Can be arranged.

  This will be specifically described with reference to FIGS. 9 and 10. The terminal 160 depicted in FIG. 9 is different from the terminal 60 of the above embodiment only in the terminal plate 163. The terminal plate 163 of FIGS. 9 and 10 is different from the terminal plate 63 of the above embodiment in that the terminal plate 163 of the terminal pin 62 does not have a portion extending to the inner side of the end portion on the center side of the scroll compressor 10.

  FIG. 10 depicts a first terminal 410 and a second terminal 420 ′ attached to a pair of terminal plates 163 of one terminal pin 62. Since the terminals attached to the other terminal pins 62 are the same, the drawings and description are omitted.

  As a difference from the above embodiment, the second terminal 420 ′ is a terminal plate of the second terminal 420 ′ when the second lead wire 220 extends downward from the second terminal 420 ′ in FIG. 10 as shown in FIG. The slot 420aa of the connection part 420a is configured symmetrically with the second terminal 420 of the above-described embodiment so that the slot 420aa faces the terminal pin 62 side. In other words, in the above embodiment, the slot 410aa of the terminal plate connection portion 410a of the first terminal 410 and the slot 420aa of the terminal plate connection portion 420a of the second terminal 420 face the same direction (right in FIG. 7). In the modification D, the slot 410aa of the terminal plate connection portion 410a and the slot 420aa of the terminal plate connection portion 420a are configured in line symmetry so as to face each other. ing. That is, in one of the pair of terminal plates 163 fixed to the same terminal pin 62, the slot 420 aa of the terminal plate connection part 420 a of the second terminal 420 ′ is connected to the first terminal 410 connected to the other terminal plate 163. The second terminal 420 ′ is attached so as to face the slot 410aa of the terminal plate connecting portion 410a with the terminal pin 62 interposed therebetween. The terminal plate 163 is disposed inside the terminal plate connection portion 410a and the terminal plate connection portion 420a, and the first terminal 410 and the second terminal are connected to the terminal plate 163, respectively. A part of the terminal pin 62 is disposed in the slot 420aa of the terminal plate connecting portion 420a. Therefore, neither the terminal plate connection part 410 a nor the terminal plate connection part 420 a is in contact with the terminal pin 62. Although description is omitted, the third terminal 430 and the fourth terminal 440 ′, and the fifth terminal 450 and the sixth terminal 460 ′ are configured in the same manner (see FIG. 10). With this configuration, a lead wire is connected in the same direction from a pair of terminals (first terminal 410 and second terminal 420 ′) connected to the terminal plate 163 attached in parallel to one terminal pin 62. When the 200 extends, neither the first terminal 410 nor the second terminal 420 ′ contacts the terminal pin 62.

  However, in such a configuration, since there are two types of terminals connected to the pair of terminal plates 63 of one terminal pin 62, the manufacturing (assembly) process of the lead wire assembly 100 is performed. Tends to be complicated and labor-intensive. From the viewpoint of assembling of the lead wire assembly 100, it is preferable that the terminal 400 used in the lead wire assembly 100 is of one type.

(5-5) Modification E
Although the compressor which concerns on the said embodiment is a scroll compressor, it is not limited to this. For example, the compressor may be a rotary compressor including the lead wire assembly 100 of the above embodiment.

  The compressor according to the present invention is excellent in assemblability even when the stator coil and the terminal are connected by six lead wires, and is useful as a compressor that is easy to prevent erroneous lead wire connection.

10 Scroll compressor (compressor)
20 Casing 40 Motor 44 Stator coil 60, 160 Terminal 62 Terminal pin (pin)
63,163 Terminal board 100 Lead wire assembly 200 Lead wire 210 First lead wire 220 Second lead wire 230 Third lead wire 240 Fourth lead wire 250 Fifth lead wire 260 Sixth lead wire 300 Bundling cord 310 First bundling cord 320 2nd bundle string 330 3rd bundle string 340 4th bundle string 350 5th bundle string 400 Terminal L1 1st distance L2 2nd distance L3 3rd distance

JP-A-4-331435

Claims (3)

A motor (40) having a stator coil (44);
A casing (20) for housing the motor;
Terminals (60, 160) attached to the casing;
A lead wire assembly (100) connecting the stator coil and the terminal;
A compressor comprising:
The lead assembly is
The first lead wire (210) and the second lead wire (220) connected to the first phase of the terminal, and the third lead wire (230) and the fourth lead wire (240) connected to the second phase of the terminal. ), And a fifth lead (250) and a sixth lead (260) connected to the third phase of the terminal;
A first bundled string (310), a second bundled string (320), a third bundled string (330), a fourth bundled string (340), and a fifth bundled string (350);
Have
The first lead wire and the second lead wire are bundled by the first bundled cord, and the distance from the first bundled cord to the tip of the first lead wire and the second lead wire on the terminal side is: Each equal at the first distance (L1),
The third lead wire and the fourth lead wire are bundled by the second bundled cord, and the distance from the second bundled cord to the tip of the third lead wire and the fourth lead wire on the terminal side is: Each equal at the second distance (L2),
The fifth lead wire and the sixth lead wire are bundled by the third bundled cord, and the distance from the third bundled cord to the tip of the fifth lead wire and the sixth lead wire on the terminal side is: Each equal at the third distance (L3),
The first distance, the second distance, and the third distance are different from each other,
The first lead wire, the second lead wire, and the third lead wire are bundled by the fourth bundle cord on the stator coil side with respect to the first bundle cord and the second bundle cord,
The fourth lead wire, the fifth lead wire, and the sixth lead wire are bundled by the fifth bundle cord on the stator coil side with respect to the second bundle cord and the third bundle cord.
Compressor (10). Terminals (400) are attached to the tips of the first lead wire, the second lead wire, the third lead wire, the fourth lead wire, the fifth lead wire and the sixth lead wire,
The terminal includes three pins (62) extending parallel to each other toward the center of the compressor, and a pair of mutually opposing terminal plates (63, 163) fixed to the pins, Have
The pair of terminal plates of each pin includes the terminal of the first lead wire and the terminal of the second lead wire, the terminal of the third lead wire, and the terminal of the fourth lead wire, respectively. And the terminal of the fifth lead wire and the terminal of the sixth lead wire are connected,
When the pins are viewed from the direction in which the pins extend, the direction in which the plane of the terminal plate extends differs for each pin.
The compressor according to claim 1. The fourth bundle string and the fifth bundle string are fixed with a varnish together with the stator coil,
The compressor according to claim 1 or 2.

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