JP2016031069A - Terminal, and compressor including terminal - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a terminal which is mounted on a compressor, of which a pair of terminal blocks are fixed to the compressor center side of a pin, and which is excellent in workability for connecting terminals to the terminal blocks, respectively.SOLUTION: A terminal 60 is mounted on the hermetic type compressor. The terminal includes a terminal body 61, a columnar terminal pin 62 passing through the terminal body and extending therefrom, and a pair of terminal blocks 63. The terminal pin has an inside part 62a arranged on the center side of the compressor and an outside part 62b arranged on the external side of the compressor, in the state that the terminal is mounted on the compressor. The terminal blocks 63 are fixed to the outer peripheral face of the inside part of the terminal pin. Each terminal block has an extension part 63a further extending to the center side of the compressor than an end face 62aa of the inside part of the terminal pin at the center side of the compressor in the state that the terminal is mounted on the compressor. An outer diameter D1 of the inside part of the terminal pin is larger than an outer diameter D2 of the outside part.SELECTED DRAWING: Figure 2

Description

  The present invention relates to a terminal, in particular, a terminal mounted on a hermetic compressor, and a compressor including the terminal.

  Conventionally, as in Patent Document 1 (Japanese Patent Application Laid-Open No. Sho 62-284974), a pin extending from the outside of the compressor toward the inside of the compressor and a terminal fixed to the inside of the compressor of the pin for connecting the terminals A terminal with a board is known. In such a terminal, as disclosed in Patent Document 1 (Japanese Patent Laid-Open No. 62-284974), the terminal plate extends to the end surface of the pin on the compressor center side toward the compressor center side.

  By the way, in order to supply a large current to the motor as the compressor capacity is increased, two lead wires extending from the stator coil of the motor may be connected to one pin. In such a case, a terminal in which a terminal plate as disclosed in Patent Document 1 (Japanese Patent Laid-Open No. 62-284974) is attached to two locations of the pin is used.

  However, when a terminal having such a structure is used, the entire terminal board is adjacent to the pins, and the distance between the terminal boards is short, so when connecting the terminal to the terminal board, the pin to which the terminal board is fixed, Other terminals connected to the other terminal plate easily interfere with the terminal to be connected to the terminal plate, and the workability of the terminal connection work is poor.

  An object of the present invention is a terminal mounted on a compressor and having a pair of terminal plates fixed to the center side of the compressor of the pin, and a terminal excellent in workability of connecting the terminal to the terminal plate, and An object of the present invention is to provide a compressor including the terminal.

  The terminal according to the first aspect of the present invention is attached to a hermetic compressor. The terminal includes a main body, a cylindrical pin, and a pair of terminal plates. The pin has an inner portion disposed on the center side of the compressor and an outer portion disposed on the outer side of the compressor in a state where the terminal is mounted on the compressor. The pin extends through the body. The terminal board is fixed to the outer peripheral surface of the inner part of the pin. In the terminal, (A) the pair of terminal plates each have an extension portion that extends to the center side of the compressor from the end surface on the center side of the compressor on the inner side when the terminal is mounted on the compressor. And / or (B) the outer diameter of the inner part is larger than the outer diameter of the outer part.

  Here, since the terminal includes at least one of a configuration in which the terminal plate has an extension portion and a configuration in which the outer diameter of the inner portion of the pin is larger than the outer diameter of the outer portion, the terminal plate of the terminal The attachment property to can be improved.

  The terminal which concerns on the 2nd viewpoint of this invention is a terminal which concerns on a 1st viewpoint, Comprising: One terminal board opposes the other terminal board in parallel.

  Here, since both terminal boards oppose in parallel, the distance between terminal boards is easy to be ensured compared with the case where both terminal boards are not parallel. Therefore, when the terminal is attached to one terminal board, the other terminal board and the terminal attached to the terminal board are not easily obstructed, and the attachment property of the terminal to the terminal board can be improved.

  A terminal according to a third aspect of the present invention is the terminal according to the first aspect or the second aspect, further comprising a pair of outer terminals. The outer terminal is fixed to the outer peripheral surface of the outer portion of the pin. Each of the outer terminals is bent with respect to the pin, and is connected to an electric wire that supplies power to the compressor while being in contact with the other outer terminal.

  Here, the electric power can be supplied to the compressor only by connecting one electric wire to the pin instead of connecting the electric wire for each outer terminal.

  In the configuration like the terminal according to the third aspect, when the pair of outer terminals are bent and brought into contact with each other, it is preferable that the outer portion of the pin is formed thin so that the periphery of the outer terminal is not bulky. Therefore, when increasing the outer diameter of the inner part of the pin, it is particularly effective to make the outer diameter of the inner part of the pin thicker than the outer diameter of the outer part, rather than uniformly increasing the pin thickness.

  The compressor according to the fourth aspect of the present invention is a hermetic compressor. The compressor includes a motor, a casing, a plurality of lead wires, a terminal, and a terminal. The motor has a stator coil. The casing houses the motor. The lead wire is connected to the stator coil. A terminal is attached to the tip of each lead wire. The terminal is attached to the casing. The terminal includes a main body, a plurality of cylindrical pins, and a pair of terminal plates that are respectively fixed to the pins. The main body is fixed to the casing. The pin includes an inner portion disposed on the center side of the compressor and an outer portion disposed on the outer side of the compressor. The pin extends through the body. The pair of terminal boards is fixed to the outer peripheral surface of the inner part of each pin. A terminal attached to the tip of each lead wire is connected to one of the terminal plates. In the compressor, (A) the pair of terminal plates fixed to each pin has an extension portion that extends to the center side of the compressor from the end surface on the center side of the compressor at the inner side and is connected to the terminal. And / or (B) In each pin, the outer diameter of the inner part is larger than the outer diameter of the outer part.

  Here, since the compressor is provided with a terminal excellent in terminal mounting performance, a compressor excellent in terminal mounting workability can be realized.

  The compressor which concerns on the 5th viewpoint of this invention is a compressor which concerns on a 4th viewpoint, Comprising: A pair of terminal board fixed to each pin opposes mutually in parallel. From the terminal connected to one terminal plate fixed to each pin and the terminal connected to the other terminal plate, the lead wire is in the direction perpendicular to the direction in which the pin extends and in the same direction. Extend.

  Here, since the lead wires extend in the same direction from a pair of terminals connected to the terminal plate attached in parallel to each pin, the arrangement of the lead wires is larger than when the lead wires extend in the opposite direction from each terminal. Difficult to get complicated. For this reason, it is possible to suppress a decrease in workability of attaching the terminals due to the complicated arrangement of the lead wires.

  The compressor which concerns on the 6th viewpoint of this invention is a compressor which concerns on a 5th viewpoint, Comprising: The length of the lead wire extended from the terminal connected to a pair of terminal board fixed to each pin is decided according to a pin. The length is unified.

  Here, the length of the lead wire extending from the terminal is unified for each fixed pin of the terminal plate to which the terminal is connected, so that the lead wire is prevented from being accidentally connected to another terminal plate. Cheap.

  In the terminal according to the present invention, since the terminal includes at least one of a configuration in which the terminal plate has an extension portion and a configuration in which the outer diameter of the inner portion of the pin is larger than the outer diameter of the outer portion, The attachment property of the terminal to the terminal plate can be improved.

  Since the compressor concerning the present invention is provided with the terminal excellent in the attachment nature of a terminal, the compressor excellent in the attachment workability of a terminal is realizable.

It is a schematic longitudinal cross-sectional view of the scroll compressor which concerns on one Embodiment of the compressor of this invention provided with the terminal which concerns on one Embodiment of this invention. FIG. 1 depicts the scroll compressor before a wire for supplying power to the terminal of the scroll compressor is connected. 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 Drawing 2 from the inside of a casing along the direction where a terminal pin extends. It is the figure which drawn the state by which the outer side terminal of the terminal of FIG. 2 was inserted in the terminal block for connecting the outer side terminal and the terminal of the electric wire which supplies electric power to a scroll compressor. 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. 6 is a schematic view of the lead wire assembly of FIG. 5. FIG. 6 is a schematic external view of a first terminal for explaining a shape of a terminal of the lead wire assembly of FIG. 5. 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. 8 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. 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 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 B. 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. 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 B. FIG. 11 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 figure which drew an example of the connection state of the terminal provided with the terminal board which does not have an extension part, and a lead wire. FIG. 12 is a view of a terminal or the like viewed from the inside of the casing along the direction in which the terminal pin extends. It is the figure which expanded and drawn the connection state of a terminal and a terminal board about the connection state of a terminal provided with the terminal board which does not have an extension part, and a lead wire of FIG. FIG. 13 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.

  The terminal 60 which concerns on one Embodiment of this invention, and the scroll compressor 10 of one Embodiment of the compressor which concerns on this invention provided with the terminal 60 are demonstrated, referring drawings.

  The following embodiments are merely examples, and can be appropriately changed without departing from the gist of the present invention.

(1) Overall Configuration The scroll compressor 10 is a hermetic compressor. 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.

  A terminal 60 is attached to the scroll compressor 10. The terminal 60 connects a motor 40 of the scroll compressor 10 described later and an electric wire P that supplies power to the scroll compressor 10.

  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. 5) 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. 6). 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 an airtight terminal attached to the cylindrical member 21 of the casing 20 of the hermetic scroll compressor 10. The terminal 60 is mainly provided with a terminal body 61 as an example of a main body, three terminal pins 62, a terminal plate 63 provided on each terminal pin 62, and two on each terminal pin 62. And an outer terminal 64 (see FIG. 2).

  The terminal body 61 is a member that supports the three terminal pins 62. The terminal body 61 is formed in a cylindrical shape whose one end is closed by a circular base 61a (see FIG. 2). The cylindrical terminal body 61 is fixed to the cylindrical member 21 by welding in such a posture that the base 61a is arranged on the outside of the scroll compressor 10 (see FIG. 1). The base 61a has three holes 61b (see FIG. 2) through which the terminal pins 62 are inserted.

  The terminal pin 62 is an example of a pin. The terminal pin 62 extends through the terminal body 61. Specifically, the terminal pin 62 is inserted through a hole 61b formed in the base portion 61a of the terminal body 61, and extends so as to penetrate the base portion 61a. The terminal pin 62 is fixed to the terminal body 61 via an insulating material such as glass. Each terminal pin 62 and the terminal body 61 are insulated by an insulating material. The terminal pin 62 extends from the outside of the casing 20 toward the center side of the scroll compressor 10, in other words, toward the center side of the cylindrical member 21 (see FIG. 1). The three terminal pins 62 each extend in parallel with the other terminal pins 62.

  The terminal pin 62 is formed in a stepped cylindrical shape having different outer diameters depending on the position. Specifically, the terminal pin 62 includes an inner portion 62a disposed on the center side of the scroll compressor 10 (center side of the cylindrical member 21) and the scroll in a state where the terminal 60 is mounted on the scroll compressor 10. It has the outer side part 62b arrange | positioned at the exterior side of the compressor 10. As shown in FIG. The outer diameter D1 of the inner part 62a is formed larger than the outer diameter D2 of the outer part 62b (see FIG. 2). The inner part 62a and the outer part 62b are connected by a tapered part 62c whose outer diameter gradually decreases from the inner part 62a side toward the outer part 62b side.

  A pair of terminal plates 63 are fixed to the outer peripheral surface of the inner portion 62 a of the terminal pin 62. The pair of terminal plates 63 are attached around the outer peripheral surface of the inner portion 62a so as to be 180 ° apart from the center of the terminal pin 62 (see FIG. 3). In other words, a portion of one terminal plate 63 attached to one terminal pin 62 sandwiches an inner portion 62a of the terminal pin 62 with a portion of the other terminal plate 63 attached to the terminal pin 62. It is fixed to the inner part 62a. The terminal board 63 is formed in a flat plate shape. The flat plate surface of one terminal plate 63 attached to one terminal pin 62 is arranged to face the flat plate surface of the other terminal plate 63 attached to the terminal pin 62 in parallel.

  Each terminal plate 63 extends to the center side of the scroll compressor 10 from the end surface 62aa of the inner side 62a of the terminal pin 62 on the center side of the scroll compressor 10 in a state where the terminal 60 is mounted on the scroll compressor 10. It has the extension part 63a. That is, the terminal plate 63 extends to the center side of the scroll compressor 10 (the center side of the cylindrical member 21) from the terminal pin 62 in a state where the terminal 60 is mounted on the scroll compressor 10. In other words, when the outer side 62b side of the terminal pin 62 is called the rear side and the inner side 62a side of the terminal pin 62 is called the front side, the terminal plate 63 fixed to the inner side 62a is the inner side portion of the terminal pin 62. It extends further forward than the end face 62aa of 62a. The extension 63 a extends by the same length E beyond the end surface 62 aa of the inner side 62 a of the terminal pin 62 on the center side of the scroll compressor 10. The extension 63 a is not in contact with the terminal pin 62.

  When the terminal pin 62 is viewed from the inside of the casing 20 along the axial direction of the terminal pin 62, the direction in which the flat plate surface of the terminal plate 63 extends (the flat plate surface widens) is the terminal to which the terminal plate 63 is attached. Different for each pin 62 (see FIG. 3). That is, the flat surface of the terminal plate 63 attached to each terminal pin 62 is not parallel to any of the flat surfaces of the terminal plates 63 attached to the other terminal pins 62 (see FIG. 3).

  In addition, the extension part 63a of each terminal board 63 has a terminal 400 (first terminal 410, second terminal 420, third terminal 430, attached to the tip of the end part of the lead wire 200 of the lead wire assembly 100 described later. The fourth terminal 440, the fifth terminal 450, and the sixth terminal 460) are connected (see FIG. 9). Connection between the terminal plate 63 and the terminal 400 will be described later.

  A pair of outer terminals 64 are fixed to the outer peripheral surface of the outer portion 62 b of the terminal pin 62. The pair of outer terminals 64 are attached around the outer peripheral surface of the outer portion 62 b with a 180 ° separation from the center of the terminal pin 62. In other words, a portion of one outer terminal 64 attached to one terminal pin 62 sandwiches an outer portion 62b of the terminal pin 62 between a portion of the other outer terminal 64 attached to the terminal pin 62. It is fixed to the outer part 62b.

  The outer terminal 64 is a round terminal having a ring-shaped connection portion 64a (see FIG. 2). In a hole 64aa (see FIG. 2) formed in the connecting portion 64a, a screw (see FIG. 2) for connecting the round terminal T provided on the electric wire P for supplying power to the scroll compressor 10 and the outer terminal 64 is provided. (Not shown) is inserted. The shape of the outer terminal 64 is an example, and the outer terminal 64 may be, for example, a U-shaped terminal having a U-shaped connection portion. In the terminal 60 before the connection of the electric wire P, the plane of the connecting portion 64a of the one outer terminal 64 attached to the one terminal pin 62 (the surface on which the hole 64aa is formed) is the other outer side attached to the terminal pin 62. It arrange | positions so that it may oppose in parallel with the plane of the connection part 64a of the terminal 64 (refer FIG. 2).

  When the electric wire P is connected to the outer terminal 64, each outer terminal 64 fixed to the terminal pin 62 is connected to the terminal pin 62 so as to come into contact with the other outer terminal 64 fixed to the terminal pin 62. In contrast, it is used after being bent. Specifically, the electric wire P that supplies power to the scroll compressor 10 is connected to the outer terminal 64 as follows.

  A terminal block 65 having a shape as shown in FIG. 4 is used to connect the three electric wires P (U-phase, V-phase, and W-phase electric wires P) and the outer terminal 64. The terminal block 65 is made of an insulating material such as resin. The terminal block 65 has three grooves 65a in which one electric wire P (either U phase, V phase, or W phase) connected to the outer terminal 64 fixed to each terminal pin 62 is disposed. It is formed in the place (refer FIG. 4). When connecting the electric wire P to the outer terminal 64, the pair of outer terminals 64 fixed to each terminal pin 62 penetrates the terminal block 65 so that the connecting portion 64a is disposed in the groove 65a. Each is inserted into one of through holes 65b formed to communicate with 65a (see FIG. 4). Thereafter, the pair of outer terminals 64 fixed to each terminal pin 62 is bent at a substantially right angle with respect to the terminal pin 62 and attached to the tip of the electric wire P of one phase with the connecting portions 64a in contact with each other. Along with the round terminal T thus formed, it is fixed to the terminal block 65 with screws (not shown). Specifically, a screw through which the hole 64aa of the connecting portion 64a of the outer terminal 64 and the hole Ta of the connecting portion of the round terminal T are inserted is screwed into a screw hole 65c formed in the terminal block 65, so that The outer terminal 64 and the round terminal T are fixed to the terminal block 65. As a result, the outer terminal 64 and the round terminal T are connected, and the lead wire 200 of the lead wire assembly 100 described later and the electric wire P are connected via the terminal 60.

  In addition, when the pair of outer terminals 64 are bent with respect to the terminal pins 62, one (on the front side in the direction in which the outer terminals 64 are bent) is arranged so that the holes 64aa of the connection portions 64a of the pair of outer terminals 64 overlap. The length of the outer terminal 64 is shorter than the other outer terminal 64 (on the rear side in the direction in which the outer terminal 64 is bent).

(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. 5).

  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. 6). 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. 6). 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. 7).

  The terminal board connection part 410a is formed in a cylindrical shape, and the terminal board 63 is inserted therein. A slot 410aa (see FIG. 7) extending in the insertion / extraction direction of the first terminal 410 (direction of attaching / detaching the first terminal 410 to / from the terminal plate 63) is formed on the side surface of the terminal plate connection portion 410a. Therefore, the cross section of the cylindrical terminal board connection part 410a is not C-shaped but is generally C-shaped (see FIG. 8). 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. 7). Is done. 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. 8 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. 8, 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 connecting portion 410a and the terminal plate connecting portion 420a are formed in a C-shape when cut at (see FIG. 8). 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 extension 63a of the terminal plate 63 is disposed inside the terminal plate connecting portion 410a and the terminal plate connecting portion 420a ( (See FIG. 8). When the first terminal 410 and the second terminal 420 are attached to the terminal plate 63, the extension 63a of 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. As described above, the terminal plate connecting portion 410a and the terminal plate connecting portion 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. 8, 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 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. 8 is an example, and the present invention is not limited to this. For example, contrary to FIG. 8, 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. 8). It is attached to the terminal pin 62 so as to face the direction. Here, the terminal plate 63 is an extension portion extending toward the center side of the scroll compressor 10 from the end surface 62aa of the inner side portion 62a of the terminal pin 62 on the center side of the scroll compressor 10 (center side of the cylindrical member 21). 63a. 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. From each of the first terminal 410 and the second terminal 420 connected to the terminal plate 63 in the same direction, the first lead wire 210 and the second lead wire 220 extend in the same direction with respect to the terminal pin 62 (see FIG. 8 and FIG. 8). (See FIG. 9). In other words, from the first terminal 410 connected to one terminal plate 63 of one terminal pin 62 and the second terminal 420 connected to the other terminal plate 63, the terminal pin 62 extends (terminal). The first lead wire 210 and the second lead wire 220 extend in a direction perpendicular to the axial direction of the pin 62 and in the same direction (see FIGS. 8 and 9). For example, referring to FIG. 8, each of the first terminal 410 and the second terminal 420 connected to the terminal plate 63 facing in parallel with each other has a first lower side in FIG. The lead wire 210 and the second lead wire 220 extend. Therefore, here, it is easy to orderly connect the plurality of lead wires 200 and the terminal pins 62 (see FIG. 9).

  Here, since the outer diameter D1 of the inner portion 62a of the terminal pin 62 is formed larger than the outer diameter D2 of the outer portion 62b, the outer diameter of the inner portion 62a is the same as the outer diameter of the outer portion 62b. The distance of the terminal board 63 is easily ensured compared to Therefore, when the terminal 400 is attached to one terminal plate 63 of one terminal pin 62, the other terminal plate 63 is unlikely to become an obstacle, and the attachment property of the terminal 400 is easily secured.

  If the terminal plate 63 fixed to the outer peripheral surface of the inner part 62 a of the terminal pin 62 does not have the extension part 63 a, one terminal contacts the terminal pin 62. For example, when the first terminal 410 and the second terminal 420 are attached to the terminal plate 63 that does not have the extension portion 63a in the orientation shown in FIG. 8, the first terminal 410 is connected to the slot 410aa of the terminal plate connection portion 410a. Since the pin 62 is disposed, 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.

  Here, a terminal plate that does not have the extension 63 a is referred to as a terminal plate 163, and a terminal that includes the terminal plate 163 instead of the terminal plate 63 is referred to as a terminal 160. When the terminal 160 is used, for example, the pair of terminals 400 are attached to the terminal plate 163 fixed to the terminal pin 62 from opposite directions with respect to the terminal pin 62 (see FIG. 13). Therefore, the two lead wires 200 connected to each terminal pin 62 extend in opposite directions as shown in FIG. Therefore, the wiring of the plurality of lead wires 200 is likely to be complicated (see FIG. 12), and the lead wires 200 are likely to obstruct the assembly work of the scroll compressor 10. Further, even after assembly, the loose lead wire 200 is likely to come into contact with the cylindrical member 21 of the casing 20 due to vibration of the scroll compressor 10 and the like, and noise is likely to occur.

  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. 6). The first lead wire 210 and the second lead wire 220 are bundled by a first bundled string 310 (see FIG. 6). The distances 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 (referred to as the lengths of the first lead wire 210 and the second lead wire 220) are the first distances, respectively. L1 is equal (see FIG. 6). 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 third lead wire 230 and the fourth lead wire 240 are bundled by the second bundled string 320 (see FIG. 6). The distance 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 (referred to as the length of the third lead wire 230 and the fourth lead wire 240) is the second distance, respectively. L2 is equal (see FIG. 6). 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. 6). The distances from the third bundle string 330 to the tips of the fifth lead wire 250 and the sixth lead wire 260 on the terminal 60 side (referred to as the lengths of the fifth lead wire 250 and the sixth lead wire 260) are the third distances, respectively. L3 is equal (see FIG. 6). 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. As described above, the length of the lead wire 200 extending from the terminal 400 connected to the pair of terminal plates 63 fixed to each terminal pin 62 is unified to a length determined for each terminal pin 62. In particular, here, in order to prevent erroneous 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. 6). 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. 6). reference). 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.

  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 from the electric wire P to the stator coil 44 through 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 terminal 60 according to this embodiment is attached to the hermetic scroll compressor 10. The terminal 60 includes a terminal body 61 as an example of a main body, a columnar terminal pin 62, and a pair of terminal plates 63 attached to each of the terminal pins 62. The terminal pin 62 includes an inner portion 62 a disposed on the center side of the scroll compressor 10 and an outer portion 62 b disposed on the outer side of the scroll compressor 10 in a state where the terminal 60 is mounted on the scroll compressor 10. Have. The terminal pin 62 extends through the terminal body 61. Each pair of terminal plates 63 attached to each of the terminal pins 62 is fixed to the outer peripheral surface of the inner portion 62 a of the terminal pin 62. Each of the pair of terminal plates 63 attached to each of the terminal pins 62 is in a state in which the terminal 60 is attached to the scroll compressor 10 than the end face 62aa on the inner side 62a on the center side of the scroll compressor 10, respectively. The scroll compressor 10 has an extension 63a extending toward the center. The outer diameter D1 of the inner part 62a of the terminal pin 62 is larger than the outer diameter D2 of the outer part 62b.

  Here, the terminal 60 has a configuration in which the terminal plate 63 has the extension 63a and a configuration in which the outer diameter D1 of the inner portion 62a of the terminal pin 62 is larger than the outer diameter D2 of the outer portion 62b. The attachment property of the terminal 400 to the terminal plate 63 can be improved.

(4-2)
In the terminal 60 according to the present embodiment, in each pair of terminal plates 63 attached to each of the terminal pins 62, one terminal plate 63 faces the other terminal plate 63 in parallel.

  Here, since both terminal plates 63 face each other in parallel in each of the pair of terminal plates 63 attached to each of the terminal pins 62, a distance between the terminal plates 63 is easily ensured as compared to the case where the both terminal plates 63 are not parallel. . For this reason, when the terminal 400 is attached to one terminal plate 63, the other terminal plate 63 and the terminal 400 attached to the terminal plate 63 are not easily disturbed, and the attachment property of the terminal 400 to the terminal plate 63 is improved. Can do.

(4-3)
The terminal 60 according to the present embodiment includes a pair of outer terminals 64 that are fixed to the outer peripheral surface of the outer portion 62 b of each terminal pin 62. Each of the outer terminals 64 is bent with respect to the attached terminal pin 62 and is connected to an electric wire P that supplies electric power to the scroll compressor 10 while being in contact with the other outer terminal 64.

  Here, the electric power can be supplied to the scroll compressor 10 only by connecting one electric wire P for each terminal pin 62 instead of connecting the electric wires P for each outer terminal 64.

  In the present embodiment, the outer diameter D2 of the outer portion 62b of the terminal pin 62 is formed smaller than the outer diameter D1 of the inner portion 62a, and the outer diameter of the outer portion 62b is equal to the outer diameter D1 of the inner portion 62a. Compared with the case of making it uniform, when the pair of outer terminals 64 are bent and brought into contact with each other, the periphery of the outer terminals 64 is less bulky. Therefore, it is possible to reduce the size of the terminal 60 and the configuration around the terminal 60 (specifically, the terminal block 65 to which the outer terminal 64 and the round terminal T of the electric wire P are connected).

(4-4)
The scroll compressor 10 according to the present embodiment is a hermetic compressor. The scroll compressor 10 includes a motor 40, a casing 20, a plurality of lead wires 200, a terminal 400, and a terminal 60. The motor 40 has a stator coil 44. The casing 20 accommodates the motor 40. Lead wire 200 is connected to stator coil 44. The terminal 400 is attached to the tip of each lead wire 200. The terminal 60 is attached to the cylindrical member 21 of the casing 20. The terminal 60 includes a terminal body 61 as a main body, a plurality of cylindrical terminal pins 62, and a pair of terminal plates 63 that are respectively fixed to the terminal pins 62. The terminal body 61 is fixed to the cylindrical member 21 of the casing 20. The terminal pin 62 includes an inner portion 62 a disposed on the center side of the scroll compressor 10 and an outer portion 62 b disposed on the outer side of the scroll compressor 10. The terminal pin 62 extends through the terminal body 61. The pair of terminal plates 63 are fixed to the outer peripheral surface of the inner portion 62 a of each terminal pin 62. A terminal 400 attached to the tip of each lead wire 200 is connected to one of the terminal plates 63. The pair of terminal plates 63 fixed to each terminal pin 62 extends to the center side of the scroll compressor 10 from the end surface 62aa of the inner side 62a of the terminal pin 62 on the center side of the scroll compressor 10, and the terminal 400 is connected thereto. Extending portion 63a. In each terminal pin 62, the outer diameter D1 of the inner portion 62a is larger than the outer diameter D2 of the outer portion 62b.

  Here, since the scroll compressor 10 is provided with the terminal 60 excellent in the attachment property of the terminal 400, the scroll compressor 10 excellent in the attachment workability of the terminal 400 can be realized.

(4-5)
In the scroll compressor 10 according to the present embodiment, the pair of terminal plates 63 fixed to the terminal pins 62 face each other in parallel. From the terminal 400 connected to one terminal plate 63 fixed to each terminal pin 62 and the terminal 400 connected to the other terminal plate 63, the direction is perpendicular to the direction in which the terminal pin 62 extends. The lead wire 200 extends in the same direction.

  Specifically, the terminal pin 62 includes a first terminal 410 connected to one terminal plate 63 fixed to one terminal pin 62 and a second terminal 420 connected to the other terminal plate 63. The first lead wire 210 and the second lead wire 220 extend in a direction perpendicular to the direction in which the first lead wire 210 and the second lead wire 220 extend in the same direction (see FIG. 9). A direction in which the terminal pin 62 extends from the third terminal 430 connected to the one terminal plate 63 fixed to the one terminal pin 62 and the fourth terminal 440 connected to the other terminal plate 63. The third lead wire 230 and the fourth lead wire 240 extend in the same direction and in the same direction (see FIG. 9). The fifth terminal 450 connected to one terminal plate 63 fixed to one terminal pin 62 and the sixth terminal 460 connected to the other terminal plate 63 are perpendicular to the direction in which the terminal pin 62 extends. The fifth lead wire 250 and the sixth lead wire 260 extend in the same direction in the same direction (see FIG. 9).

  Here, since the lead wire 200 extends in the same direction from the pair of terminals 400 connected to the terminal plate 63 attached in parallel to each terminal pin 62, the lead wire 200 extends in the opposite direction from each terminal 400. Compared to (see FIG. 12), the arrangement of the lead wire 200 is less complicated. Therefore, it is possible to suppress a reduction in the mounting workability of the terminal 400 due to the complicated arrangement of the lead wire 200.

(4-6)
In the scroll compressor 10 according to the present embodiment, the length of the lead wire 200 extending from the terminal 400 connected to the pair of terminal plates 63 fixed to each terminal pin 62 is a length determined for each terminal pin 62. It is unified.

  Here, from the first to third bundle strings 310, 320, and 330 that bundle a pair of lead wires 200 extending from a pair of terminals 400 connected to a pair of terminal plates 63 fixed to each terminal pin 62. The length to the terminal 400 is called the length of the lead wire 200.

  Specifically, the lengths of the first lead wire 210 and the second lead wire 220 extending from the first terminal 410 and the second terminal 420 respectively connected to the pair of terminal plates 63 fixed to the one terminal pin 62 are as follows. The length L1 is unified (see FIG. 6). The lengths of the third lead wire 230 and the fourth lead wire 240 extending from the third terminal 430 and the fourth terminal 440 connected to the pair of terminal plates 63 fixed to the one terminal pin 62 are set to the length L2. They are unified (see FIG. 6). The fifth lead wire 250 and the sixth lead wire 260 extending from the fifth terminal 450 and the sixth terminal 460 connected to the pair of terminal plates 63 fixed to the one terminal pin 62, respectively, have a length L3. They are unified (see FIG. 6).

  Here, since the length of the lead wire 200 extending from the terminal 400 is unified for each terminal pin 62 to which the terminal plate 63 to which the terminal 400 is connected is fixed, the lead wire 200 is mistakenly connected to another terminal plate 63. Is prevented from being connected to.

(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 terminal 60 of the embodiment includes both the following configurations (A) and (B).
(A) Each of the pair of terminal plates 63 attached to each of the terminal pins 62 is more than the end face 62aa of the inner side 62a on the center side of the scroll compressor 10 when the terminal 60 is mounted on the scroll compressor 10. Also has an extension 63 a extending toward the center of the scroll compressor 10.
(B) The outer diameter D1 of the inner part 62a of each terminal pin 62 is larger than the outer diameter D2 of the outer part 62b.

  However, the present invention is not limited to this, and the terminal 60 may have one of the configurations (A) and (B). Since the terminal 60 has one of the configurations (A) and (B), the wiring work of the scroll compressor 10 to which the terminal 60 is mounted (the terminal 400 at the tip of the lead wire 200 and the terminal plate 63 of the terminal 60). The workability of the connection work) can be improved.

(5-2) Modification B
For example, when the terminal 60 has only the feature that the outer diameter D1 of the inner part 62a of each terminal pin 62 is larger than the outer diameter D2 of the outer part 62b (when the terminal plate 63 does not have the extension part 63a). In the terminal 400 connected to the pair of terminal plates 63 of one terminal pin 62, the lead wires are such that the openings (slots) of the terminal plate connecting portion having a C-shaped cross section face the terminal pin 62 side. The assembly 100 may be configured.

  This will be specifically described with reference to FIGS. 10 and 11. The terminal 160 is different from the terminal 60 of the above embodiment in that the terminal plate 163 does not have the extension portion 63a. FIG. 11 depicts the first terminal 410 and the second terminal 420 ′ attached to a pair of terminal plates 163 (terminal plates not having the extension 63 a) of one terminal pin 62. Since the terminals attached to the other terminal pins 62 are the same, the drawings and description are omitted.

  The difference from the above embodiment is that 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. 11 as shown in FIG. It is configured symmetrically with the second terminal 420 of the above embodiment so that the slot 420aa of the connecting portion 420a 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. 8). On the other hand, in the modified example B, the slot 410aa of the terminal plate connecting portion 410a and the slot 420aa of the terminal plate connecting portion 420a are configured in line symmetry so as to face each other. ing. 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, when the lead wire 200 extends in the same direction from the pair of terminals 410 and 420 ′ connected to the terminal plate 163 attached in parallel to the one terminal pin 62, the first Neither the terminal 410 nor the second terminal 420 ′ is in contact with the terminal pin 62.

  However, in the case of such a configuration, since there are two types of terminals connected to the pair of terminal plates 163 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.

  In addition, although the case where the terminal board 163 which does not have the extension part 63a was used as an example was demonstrated here, it is not limited to this. Even in the case where the terminal plate 63 having the extension 63a is used, in the terminal 400 connected to the pair of terminal plates 63 of one terminal pin 62, all the openings (slots) of the terminal plate connecting portion are terminals. The lead wire assembly 100 may be configured to face the pin 62 side.

(5-3) Modification C
The number and arrangement of the terminal pins 62 of the terminal 60 of the above embodiment, the direction of the terminal plate 63 fixed to each terminal pin 62, and the like are examples, and are not limited thereto.

  For example, the flat plate surface of the terminal plate 63 fixed to one terminal pin 62 and the flat plate surface 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, it is easy to connect the terminal plate 63 of the terminal 60 and the terminal 400.

(5-4) Modification D
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.

(5-5) Modification E
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. 8, 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. 8, 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. 8 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.

(5-6) Modification F
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 hermetic rotary compressor including the terminal 60 of the above embodiment.

(5-7) Modification G
The configuration of the lead wire assembly 100 used in the scroll compressor 10 according to the above embodiment is not limited to the above.

  For example, the method of bundling the lead wire 200 with the bundling cord 300 is not limited to that of the above embodiment, and the six lead wires 200 may be bundled with one bundling cord. However, by connecting the lead wire 200 with the bundled string 300 as described above, the terminal 400 of the lead wire 200 and the terminal plate 63 of the terminal 60 can be easily connected without erroneous connection. Can do.

  Further, the length of the lead wire 200 extending from the terminal 400 connected to the pair of terminal plates 63 fixed to each terminal pin 62 is unified to a length determined for each terminal pin 62 as in the above embodiment. It does not have to be. However, it is possible to prevent erroneous connection by unifying the lengths of the lead wires 200 extending from the terminals 400 connected to the pair of terminal plates 63. Further, by unifying the lengths of the lead wires 200 extending from the terminals 400 connected to the pair of terminal plates 63, the lead wires 200 are excessively obstructed in connecting work of other lead wires 200. 200 is loosened, and it is easy to suppress the occurrence of problems such as generation of noise due to vibration of the lead wire 200 during operation of the scroll compressor 10.

(5-8) Modification H
In the above embodiment, the terminal plate 63 has an extension 63a that extends by the same length E beyond the end surface 62aa of the inner side 62a of the terminal pin 62 on the center side of the scroll compressor 10 as shown in FIG. However, the present invention is not limited to this. For example, the length of the extension 63 a of one terminal plate 63 fixed to one terminal pin 62 is different from the length of the extension 63 a of the other terminal plate 63 fixed to the terminal pin 62. Also good. Further, for example, the length of the extension 63 a of the terminal plate 63 may be different depending on the terminal pin 62.

  The terminal according to the present invention is useful as a terminal excellent in workability for connecting a terminal to a terminal board. Further, the compressor according to the present invention provided with the terminal is easy and useful for connecting the lead wire to the terminal.

10 Scroll compressor (compressor)
20 Casing 40 Motor 44 Stator coil 60, 160 Terminal 61 Terminal body (main body)
62 Terminal pin (pin)
62a Inner part 62aa End face 62b Outer part 63,163 Terminal plate 63a Extension part 64 Outer terminal 200 Lead wire 400 Terminal D1 Outer diameter (outer diameter of inner part)
D2 outer diameter (outer diameter of outer part)
P electric wire

JP-A-62-284974

Claims (6)

A terminal mounted in a hermetic compressor (10),
A body (61);
In the state where the terminal is mounted on the compressor, the main body has an inner portion (62a) disposed on the center side of the compressor and an outer portion (62b) disposed on the outer side of the compressor, A cylindrical pin (62) extending therethrough,
A pair of terminal plates (63, 163) fixed to the outer peripheral surface of the inner portion of the pin;
With
(A) Each of the pair of terminal plates extends closer to the center of the compressor than an end surface (62aa) of the inner side of the compressor on the inner side in a state where the terminal is attached to the compressor. Having an extension (63a),
And / or
(B) The outer diameter (D1) of the inner portion is larger than the outer diameter (D2) of the outer portion,
Terminal (60, 160). One terminal plate faces the other terminal plate in parallel.
The terminal according to claim 1. A pair of outer terminals (64) fixed to the outer peripheral surface of the outer portion of the pin;
Each of the outer terminals is connected to an electric wire (P) that supplies power to the compressor while being bent with respect to the pin and in contact with the other outer terminal.
The terminal according to claim 1 or 2. A motor (40) having a stator coil (44);
A casing (20) for housing the motor;
A plurality of lead wires (200) connected to the stator coil;
A terminal (400) attached to the tip of each of the lead wires;
Terminals (60, 160) attached to the casing;
A hermetic compressor with
The terminal is
A main body (61) fixed to the casing;
A plurality of cylindrical pins (62) including an inner part (62a) disposed on the center side of the compressor and an outer part (62b) disposed on the outer side of the compressor and extending through the main body. )When,
A pair of terminal plates (63, 163) respectively fixed to the outer peripheral surface of the inner portion of each pin;
Have
The terminal is connected to one of the terminal plates,
(A) The pair of terminal plates fixed to each pin extends from the inner side end surface (62aa) of the compressor toward the center side of the compressor, and is connected to the terminal. Part (63a),
And / or
(B) In each of the pins, the outer diameter (D1) of the inner portion is larger than the outer diameter (D2) of the outer portion.
Compressor (10). A pair of the terminal boards fixed to each of the pins are opposed to each other in parallel,
The terminal connected to one of the terminal plates fixed to each pin and the terminal connected to the other terminal plate are in the direction perpendicular to the direction in which the pins extend, and are the same The lead wire extends in the direction of
The compressor according to claim 4. The length of the lead wire extending from the terminal connected to the pair of terminal plates fixed to each pin is unified to a length determined for each pin,
The compressor according to claim 5.

Images