CN107896013A - Conductor wire fixed system - Google Patents

Abstract

The present invention relates to a kind of system of fixed stator conductive cable, wherein the stator is used for brushless type motor, the system has a connector (5), the connector (5) has the positioning housing (9) for conductive cable (41), and the geometrical clamp (10) fixed from the connector to the housing (42), for cable, the housing (9) for wherein fixing the cable is used to guide conductor to website, and further sets the correct length of the cable between the stator and the connection plug of hermetic terminal.

Description

Conductor wire fixed system

Technical field

The present invention relates to a kind of system of fixed power cable, and it is preferably used for the stator of brushless type motor, and The brushless type motor applications include the closing of those variable capacities for being used for refrigeration in any kind of hermetic compressor Formula compressor.

Background technology

The present invention can be used for any hermetic compressor motor in, but herein we by the closed of variable capacity Compressor is handled as an example.The hermetic compressor of the variable capacity is connected to axle usually using one kind by cam pin Mechanical linkage-piston type system.In order to move this mechanism, it will usually use brushless type motor.The brushless type is electronic Machine is generally made up of stator and rotor, and wherein the former is exhausted by electric steel lamination core, conductive material (being usually copper or aluminium) coil, groove Edge body and power cable composition.The stator is generally screwed on block, and is also secured on bearing spring.Installing During, rotor is fixed on eccentric shaft by mechanical interference.

One of them for the stator of the brushless type motor in cryogen containment formula compressor is typically characterized by, they Winding construction with usually 3 phases, it is respectively distributed in 6,9 or 12 slots.

The another of this type stator is typically characterized by, and generally these mutually have an intersection point, and it has Y types winding (also referred to as For star winding) the characteristics of.

This type stator another feature is that, the end of the phase relative with intersection point is fed for connecting stator.

Known several configurations can connect and fixed stator power supply.In the situation of the hermetic compressor for refrigeration Under, this connection is generally exhausted by the flexibility between 3 stator terminals in compressor housing and the hermetic terminal Edge cable is carried out.Document US 5,762,526 shows the possible connection type of one of which, which uses clip terminal, institute State clip terminal and the motor electric wire is connected directly to the hermetic terminal.The maximum drawback of this configuration is to avoid Relative movement between the motor and the connection, this may cause the electric wire on the stator winding to be broken.

The A1 of another document patent US 2008/0129132 it is also proposed the motor for solving hermetic compressor and end The scheme of connection between end, wherein, motor cable is connected to conductive cable by using clip, this is carried out outside motor A little connections.In addition to it can not ensure for the relative movement of motor connection, the solution cannot guarantee that cable Even length, this may cause the damage of cable or connection.

Another similar document is the A1 of WO 2011/076649, and wherein cable is attached to one of coil by one The plastic adhesive tape of nose is fixed on motor.Equally, this solution cannot be guaranteed the uniformity of cable length, and can Cable or connection can be damaged.

In fact, for the connection between stator winding and flexible cable, in addition to other factors, based on using money Manufacture, product cost and the automation in source, also several options are available.

On the connection between winding and power cable, currently available most common type is directly to weld the end Son, insulation processing is then carried out to solder side by thermal contraction coating.One selection similar with welding is to pass through conductive material " clip " cable and terminal are extruded, which secures contact point and bond them together.In addition, in such case Under, thermal contraction coating is used to insulate.Generally, the coating for having connection is inserted between coil so that they are in motor operation Shi Buhui loosens because of caused vibrations.

A difficult point relevant with the batch production of this type stator is the cable between compressor stator and hermetic terminal The changeability of final lengths.Length is excessive to be may be such that=bottoms of conductive cable contacts to compressor, cause cable to be rubbed And damage.Cable is too short to produce pulling effect, so as to cause its fracture.

Another difficult point of stator on producing cable or clip with welding is the unstability of its process, and this is not It is only relevant with the length of cable, it is also relevant with the quality of connection.In stator production process, it can relatively frequently find that welding is lost Lose or clip in cable breakage.For the ease of the connection of cable and winding electric wire, widely used device already be present, especially The equipment of " Mag-Mate " brand, that eliminate clip or weld seam between electric wire and cable.

" Mag-Mate " type system is used to need stator that there is the special housing for terminal, the housing is generally and line The insulator of circle is injected into polymer together, and is fixed to stator in the fabrication process.Maximum drawback is, uses this Conventional clip or welding system can not be reused after a little housings.According to the required connection system used, the fact that make coil Insulation it is necessarily different.Another drawback of this connection system is its cost height, and this is the complexity by connector And caused by the type of required electrical terminal.

The content of the invention

Equipment described herein is intended to that a kind of low-cost system for being connected or being welded to connect with clip can be used, except Electric wire and cable terminal in itself outside without extra terminal.

Another purpose of this patent is to provide a kind of system, no matter selects which type of connected mode, and the system can The cable length between stator and hermetic terminal is always to maintain constant, avoid cable too short (cable has risk of breakage) or cable Oversize (risk that cable is damaged by the friction with compressor housing).

Another purpose of this patent is to ensure that the cable radius of curvature near compressor housing bottom is sufficiently large, will not produce Raw too big rigidity, because there may be the problems such as the rupture of such as noise, cable or possible Danger Electric shock risk for this high rigidity.

The present invention relates to a kind of conductive cable fixed system of the stator for brushless type motor.The system includes one The connector that kind is excessively injected, the connector include a box, and it is connect by engaging at least one geometrical clamp in housing The box of conjunction, the box, which includes, one the protruding member containing cable positioning housing.It should be noted that the box includes For the mold walls coupled with engagement housing.

The system also includes a nonconducting electronics retainer, and it is positioned at excessively injection connector and close for connecting Between the plug for blocking son.It is therefore preferred that the connector is constructed by excessively injecting electrically insulating material, and according to it The geometry of applicable motor and stator core and stator winding moulds the connector.

Positioning housing is customized for each conductive cable, the positioning housing is formed in excessive injection period and according to being used The diameter of cable and be made.

Brief description of the drawings

Fig. 1 shows the normal cable 1 of stator.

Fig. 2 shows the cable for the connection of " Mag-Mate " type.

In FIG. 3, it is seen that the cable with present system.

Fig. 4 shows the stator perspective view with conventional connection and cable fixed system.

Fig. 5 shows the identical connection shown in Fig. 4 and the cross-sectional view of cable fixed system.

Fig. 6 shows the perspective view with the connection of " Mag-Mate " type and the stator of cable fixed system.

Fig. 7 shows the connection shown in Fig. 6 and the cross-sectional view of fixed system.

Fig. 8 is the perspective view of the stator with present system.

Fig. 9 shows the identical connection shown in Fig. 8 and the cross-sectional view of fixed system.

Figure 10 shows the perspective view of excessively injection connector of the invention.

Figure 11 shows the cross-sectional view of the connector shown in Figure 10.

Figure 12 shows the side view of the housing fixed for cable and connector.

Figure 13 shows perspective view of the present system before being connected.

Figure 14 shows perspective view of the present system after being connected.

Embodiment

Hereinafter, the present invention will be more fully described by example shown in the drawings.

Fig. 1 shows the normal cable 1 of stator, and the stator has the terminal 2 for being used for welding or be clipped in Stator winding wires. In addition, Fig. 1 also show the socket plug 3 and three conductive cables 41 for being connected to hermetic terminal.

Fig. 2 shows the cable 21 for the connection of " Mag-Mate " type, and it has a connector 4, and the connector is used to insert Enter in the housing in stator winding terminals.Meanwhile Fig. 2 also show three conductive cables 41.

In FIG. 3, it is seen that one carries the cable 31 of terminal, it is used to weld or clamped, and for cable protection Excessively injection retainer 6, and the connector 5 excessively injected.The connector 5 excessively injected is proposed by the invention is used for admittedly Determine the part of conductive cable system.In this configuration, the excessively injection connector 5 keeps the position of cable, avoids Relative movement between the stator winding terminals and the coil/stator core.Fig. 3 is also shown for three wires 41。

Fig. 4 shows the conventional connection with the conductive cable 41 and the stator perspective view of fixed system.In Fig. 4, It can also be seen that tie up the plastic pin 8 of stator cable.

Fig. 5 shows identical shown in Fig. 4, by the way that cable is tied up to the connection of the conductive cable 41 of plastic pin 8 With the cross-sectional view of fixed system.

Fig. 6 shows the perspective view with the cable connection of " Mag-Mate " connector 4 and the stator of fixed system.At this In system, the terminal of the stator winding is connected directly in the clip in housing, and is connected by the plug in the connector 4 It is connected to cable.

Fig. 7 is shown for the identical connection of " Mag-Mate " type cable 4 and the cross-sectional view of fixed system.

Fig. 8 shows the perspective view of the stator with system proposed by the present invention, for solid by excessively injecting connector 5 Determine conductive cable 41.In the connection of the type, the terminal of the motor winding is still connected directly to cable, however, institute Stating excessively injection connector 5 ensures not relatively move between the connection and coil/stator core, so as to increase motor Reliability.The type for the motor applied according to the connector 5, or the even geometry of stator core and coil, institute Different forms can be had by stating connector 5.

Fig. 9 shows the identical shown in Fig. 8 in addition to for fixed excessively injection in succession the engagement housing 42 of device 5 The cross-sectional view of cable connection and fixed system 5.

Figure 10 shows the detail perspective of the excessive injection connector 5 of the new system for fixing the conductive cable 41 Figure.It can also be seen that the positioning housing 9 of each conductive cable 41 from figure, wherein this housing 9 is positioned in component 14, institute State component to protrude at the box 13 of excessive injection connector 5, wherein the excessively injection connector 5 is by for engaging engagement shell The mold walls of body 42 (as shown in Figure 9) are made.The housing 9 does not have certain size, and is existed according to the diameter of cable used Excessive injection period is formed.

According to the system proposed, Figure 11 shows the cross-sectional view of the identical connector 5 for fixing the cable.Together When Figure 11 also show one of positioning housing 9 and geometrical clamp 10.

Figure 12 shows identical connector 5 for fixing conductive cable 41 and for fixing the shell of the connector 5 The side view of body 42, the connector 5 are fixed by the fixing 10.

Fig. 1 shown before housing 41 and hermetic terminal 12 is connected to, the cable 31 of system proposed by the invention it is saturating View.

Figure 14 shown after housing 41 and hermetic terminal 12 is connected to, the cable 31 of system proposed by the invention it is saturating View.

After the example of preferred embodiment has been described, it should be understood that the scope of the present invention includes other possible changes Change, it is only limited by the content of appended claims, including the possible equivalent of claims.

Claims (8)

1. the conductive cable fixed system (41) for stator in brushless type motor, it is characterised in that the system includes one Kind excessively injection connector (5), it includes a box, and the box is by engaging at least one geometrical clamp in housing (42) (10) engage.The box (13) includes a protruding member (14) for containing cable (41) positioning housing (9).

2. system according to claim 1, it is characterised in that the box (13), which includes, to be used for engaging housing (42) coupling The mold walls of conjunction.

3. system according to claim 1, it is characterised in that the system further includes a non-conductive retainer (6), it is positioned at the excessively injection connector (5) and for being connected between the plug (3) of hermetic terminal.

4. system according to claim 1, it is characterised in that the connector (5) by electrically insulating material excessive injection Form.

5. system according to claim 1, it is characterised in that what the excessively injection connector (5) was applicable according to it Motor is molded.

6. system according to claim 1, it is characterised in that the excessively injection connector (5) is according to the stator iron The geometry of core and coil is molded.

7. system according to claim 1, it is characterised in that customize positioning housing (9) for each conductive cable (41).

8. system according to claim 7, it is characterised in that the positioning housing (9) was formed in excessive injection period And according to be made using the diameter of cable.