JPH0547448U - Hermetic compressor - Google Patents

Abstract

(57) [Summary] [Purpose] It is possible to easily connect the lead wire 6 and the terminal, and to prevent the lead wire 6 from being cut by contact with the rotating part or contacting the casing and being burned by welding heat. To prevent. [Structure] An intermediate portion 63 between a separation portion 61 of a lead wire 6 and a connection portion 62 is inserted into the coil end 5, and movement of the intermediate portion 63 is restricted within a certain range of the width of the coil end 5. Attach the ring body 8. This ring body 8 uses the same string as the binding string 81 that fastens the coil end 5, and a string ring previously tied in a ring shape is integrally held by the coil end 5 during the racing operation of the coil end 5.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a hermetic compressor in which a scroll type compression element and a motor for driving the compression element are housed in a hermetic casing.

[0002]

[Prior Art]

 Conventionally, this type of hermetic compressor includes a hermetic casing in which a compression element and a motor are installed, as disclosed in, for example, Japanese Unexamined Patent Publication No. 1-118184 and Japanese Unexamined Patent Publication No. 2-91488. The lead wire from the carp end is connected to the terminal on the wall of the casing.

[0003]

[Problems to be solved by the device]

 However, in the above, if the lead wire is short, the connecting work becomes extremely difficult when connecting the lead wire to the terminal, while if the lead wire is long, the coil end of the lead wire becomes The intermediate part between the separation part of the terminal and the connection part to the terminal overlaps, catches on the balance weight that constitutes the rotating part and breaks, or contacts the inner wall of the casing and supports the compression element. When welding, the lead wire may burn out due to its high heat.

The object of the present invention is to easily connect the lead wire and the terminal by restraining the middle portion of the lead wire within a certain range with a simple structure, and to prevent disconnection or burnout. The point is to provide a hermetic compressor that can be avoided.

[0005]

[Means for Solving the Problems]

 Therefore, in order to achieve the above object, a terminal 7 is provided in which a compression element 3 and a motor 4 are housed in a closed casing 9, and a lead wire 6 drawn out from a coil end 5 of the motor 4 is provided on a wall portion of the casing 9. In the hermetic compressor connected to, the coil end 5 is inserted with an intermediate portion 63 between the separation portion 61 of the lead wire 6 from the coil end 5 and the connection portion 62 to the terminal 7, A ring body 8 was attached to restrain the movement of the intermediate portion 63 within a certain range.

In addition, with the above configuration, it is preferable that the ring body 8 is formed of the binding string 81 that fastens the coil end 5.

[0007]

[Action]

 Since the middle part of the lead wire 6 is constrained within a certain range by the ring body 8, the lead wire 6 can be long, connection work with the terminal 7 can be easily performed, and contact between the middle part and the rotating part can be achieved. It is also possible to prevent contact with the inner wall of the casing 9 or the casing 9 and to avoid disconnection and burnout accidents.

Further, by forming the ring body 8 with the binding string 81, the cost can be reduced, and when the ring body 8 is fixed to the coil end 5, the winding material of the coil end 5 part is damaged. Can be eliminated.

[0009]

【Example】

 FIG. 2 shows a scroll type hermetic compressor having a hermetic casing 9, a compression element 3 having a fixed scroll 1 and a movable scroll 2, a stator 41 and a rotor 42, and a rotor 42 having a crank. The motor 4 to which the shaft 43 is coupled is internally mounted via upper and lower housings 91 and 92. The crankshaft 43 includes an upper eccentric pin portion 44 and a balance weight 45, and is supported by the housings 91 and 92 via upper and lower bearings 93 and 94. The housings 91 and 92 are fixed to the wall portion of the closed casing 9 via welded portions 95 and 96, respectively. Reference numeral 97 is a partition wall defining the discharge chamber 90 above the closed casing 9. Further, three lead wires 6 drawn out from the coil end 5 of the stator 41 are connected to a terminal 7 provided on a side wall portion of the closed casing 9. In this way, the suction gas taken in from the suction pipe 98 is compressed between the scrolls 1 and 2, and the compressed discharge gas is taken out from the discharge pipe 99 through the discharge chamber 97.

With the above configuration, as clearly shown in FIG. 1, the coil end 5 has an intermediate portion between the separation portion 61 from the coil end 5 and the connection portion 62 to the terminal 7 in the lead wire 6. 63 is inserted, and the ring body 8 that restricts the movement of the intermediate portion 63 within a fixed range of the width of the coil end 5 is attached. The separating portion 61 is tightly coupled to the coil end 5 by a binding string 81 that binds the coil end 5. Further, crimp terminals 62a for connecting to the terminals 7 are attached to the connecting portions 62, respectively.

Further, the ring body 8 through which the intermediate portion 63 is inserted is formed of the same string as the binding string 81 for fastening the coil end 5, and the ring body 8 composed of a string ring previously linked in a ring shape is Tighten the coil end 5 with the binding string 81. Part of the string loop is held integrally with the coil end 5 during the lacing work, or the string string is fastened sequentially during the lacing work. The parts are wound in a ring shape and tied together, and are simultaneously formed during the lacing work. Although the coil end 5 is hardened by impregnating it with a varnish or the like after the lacing process, it is needless to say that the lead wire 6 portion can be freely moved inside the ring body 8 without being hardened with the varnish. Moreover, the ring body 8 may be formed by using a resin material or the like, in addition to being formed by using the binding string 81 as described above.

In this way, with the above configuration, since the middle portion of the lead wire 6 is constrained by the ring body 8 within a certain range, the lead wire 6 can be lengthened and connection work with the terminal 7 can be easily performed. The contact between the intermediate portion and the rotating portion and the inner wall of the casing 9 can be prevented, and the disconnection and the burnout accident can be avoided.

Further, since the ring body 8 is formed of the binding cord 81, the cost can be reduced, and when the ring body 8 is fixed to the coil end 5, the winding material of the coil end 5 portion is not damaged. To let it.

Although the scroll type hermetic compressor has been described in the above embodiment, it goes without saying that a rotary or reciprocating type compressor may be used.

[0015]

[Effect of the device]

 As described above, according to the present invention, since the ring body 8 for restraining the intermediate portion 63 of the lead wire 6 within a certain range is provided, the lead wire 6 can be long and the connection work with the terminal 7 can be easily performed. It is possible to prevent contact between the intermediate portion and the rotating portion and contact with the inner wall of the closed casing 9, and it is possible to prevent disconnection and burnout accident.

Further, when the ring body 8 is formed of the binding cord 81, the cost can be reduced and the winding material of the coil end 5 portion can be prevented from being damaged.

[Brief description of drawings]

FIG. 1 is a perspective view showing a main part of a hermetic compressor according to the present invention.

FIG. 2 is a cross-sectional view showing the entire hermetic compressor.

[Explanation of symbols]

 3 compression element 4 motor 5 coil end 6 outlet wire 7 terminal 8 ring body 9 hermetic casing 61 separation part 62 connection part 63 intermediate part 81 binding string

Claims (2)

[Scope of utility model registration request] 1. A hermetic casing 9 is provided with a compression element 3 and a motor 4.
In the hermetic compressor in which is connected to a terminal 7 provided on the wall portion of the casing 9, a lead wire 6 which is drawn from the coil end 5 of the motor 4 is connected to the coil end 5 and the lead wire 6 An intermediate portion 63 between the separation portion 61 from the coil end 5 and the connection portion 62 to the terminal 7 is inserted, and the ring body 8 for restricting the movement of the intermediate portion 63 within a certain range is attached. Characteristic hermetic compressor. 2. The hermetic compressor according to claim 1, wherein the ring body 8 is formed of a binding string 81 for fastening the coil end 5.