CN201252423Y

CN201252423Y - Anti-electrical erosion structure of a plastic package motor

Info

Publication number: CN201252423Y
Application number: CNU2008200513055U
Authority: CN
Inventors: 唐剑武; 许新甲; 魏新民; 高烜
Original assignee: Guangdong Welling Motor Manufacturing Co Ltd
Current assignee: Guangdong Welling Motor Manufacturing Co Ltd
Priority date: 2008-07-28
Filing date: 2008-07-28
Publication date: 2009-06-03
Anticipated expiration: 2018-07-28

Abstract

The utility model discloses an anti-electrical erosion structure of a plastic package motor, comprising a plastic covered stator core and an end cover. The periphery of the plastic covered stator core is provided with a contact pin fixed hole; one end of a contact pin is inserted in the contact pin fixed hole; a control plate is arranged between and connected with the plastic covered stator core and the end cover; the periphery of the control plate is provided with a contact pin hole which matches with the other end of the contact pin; and the periphery of a central axle hole is provided with rivets or bolts, so the central axle hole is fixedly connected with the end cover. In the utility model, the plastic covered stator core and the end cover are connected into a whole body through the control plate, so the anti-electrical erosion structure is applicable to the motor with a small end cover, effectively guarantees the connection of the stator core and the end cover, can reduce the equivalent capacitance of the motor and reduce the axis voltage, thus having good anti-electrical erosion effect. The anti-electrical erosion structure reduces the technic difficulty through the improved structure, and has the advantages of convenient manufacture, low cost and the like, and can widen the application range and prevent the electrical erosion of the bearing.

Description

Plastic packaging motor is prevented the galvanic corrosion structure

Technical field

The utility model relates to the anti-galvanic corrosion structure of a kind of high direct voltage plastic packaging motor, belongs to the improvement to the anti-galvanic corrosion structure of existing motor.

Background technology

Traditional direct current plastic packaging motor is prevented the galvanic corrosion structure, is the mode that stator core extension and end cap is directly linked to each other by contact pin, and there is following shortcoming in it:

1. when plastic packaging motor adopts the field frame assembly injection mo(u)lding, reserve the mode of pin holes in the relevant position, pin holes is difficult to clean fully, and frequent remaining BMC material (plastic packaging motor thermosets) causes end cap and stator core conducting to be guaranteed.

2. during the field frame assembly injection mo(u)lding,, add the effect of injection mo(u)lding pressure because there is thickness deviation in stator core, stator core often occurs and float, and the pin holes degree of depth of mold design is fixed, and causes the end cap face to be difficult to determine to the stator core place degree of depth, too short because of contact pin easily, can't conducting.

3. owing to end cap is connected with the stator core extension by contact pin, can't be suitable for for the motor of the little end cap of present many uses, contact pin can't be connected with stator core, causes such motor to prevent the galvanic corrosion structure, can't prevent bearing galvanic corrosion phenomenon.

The utility model content

The purpose of this utility model aims to provide a kind of simple and reasonable, function admirable, the anti-galvanic corrosion structure of plastic packaging motor easy to make, with low cost, to overcome weak point of the prior art.

By the anti-galvanic corrosion structure of a kind of plastic packaging motor of this purpose design, comprise plastic stator core and end cap, the outer rim of plastic stator core is provided with the contact pin fixing hole, one end of contact pin is plugged in the contact pin fixing hole, its architectural feature is to be provided with control board between plastic stator core and the end cap, and control board is connected with end cap with plastic stator core respectively.

The outer rim of described control board is provided with pin holes and matches with the other end of contact pin, is equipped with rivet or screw is fixedlyed connected with end cap in the central shaft hole outer periphery.Control board is circle or D shape, and the central shaft hole periphery also is provided with fairlead.

Described end cap is a cup-shaped, and the end face that turns up is provided with flange and cooperates with the control board centre bore, and the relevant position also is provided with rivet hole or screw hole is fixedlyed connected with control board.

The quantity of described contact pin, rivet or screw is respectively one or more.

The utility model connects into an integral body by control board with plastic stator core and end cap, make anti-galvanic corrosion structure be applicable to small end lid motor, guarantee simultaneously effectively the stator core conducting that is connected with end cap, avoid because the field frame assembly injection mo(u)lding causes plastic stator core effectively to link to each other with end cap, can reduce the motor equivalent capacitance value, thereby the reduction shaft voltage, anti-galvanic corrosion is respond well.This anti-galvanic corrosion structure effectively reduces technology difficulty by architecture advances, has features such as easy to make, with low cost, can conveniently enter production in enormous quantities.It can increase the anti-galvanic corrosion structure scope of application, prevents bearing generation galvanic corrosion phenomenon.

Description of drawings

Fig. 1 is the utility model one embodiment field frame assembly structural representation;

Fig. 2 is the sectional structure schematic diagram of Fig. 1.

Fig. 3 is the stator module structural representation;

Fig. 4 is the side-looking structural representation of Fig. 3.

Fig. 5 is the control board structural representation;

Fig. 6 is a copper aluminium rivet syndeton schematic diagram among Fig. 5.

Fig. 7 is an end cap structure for amplifying schematic diagram;

Fig. 8 is an A-A sectional structure schematic diagram among Fig. 7.

Embodiment

Below in conjunction with drawings and Examples the utility model is further described.

Referring to Fig. 1-Fig. 4, this plastic packaging motor is prevented the galvanic corrosion structure, comprise plastic stator core 2 and end cap 5, the outer rim of plastic stator core 2 is provided with the contact pin fixing hole, one end of contact pin 3 is plugged in the contact pin fixing hole, is provided with control board 4 between plastic stator core 2 and the end cap 5, and the outer rim of control board is provided with pin holes 9, the other end that contact pin 3 exposes runs through wherein, is equipped with rivet 6 in central shaft hole 7 outer periphery and fixedlys connected with end cap 5.Control board is a D shape, and central shaft hole 7 peripheries also are provided with fairlead 8.End cap 5 is a cup-shaped, and the end face that turns up is provided with flange 11 and cooperates with control board central shaft hole 7, is equipped with rivet hole 10 in central shaft hole 7 outer periphery, sees Fig. 7-Fig. 8, so that fixedly connected with control board 4.1 is thermosets among Fig. 2.

Its production process is: (1) is connected stator core with contact pin, and it is plastic to form stator core.Contact pin exposes plastic stator core, and as one of them reference column of plastic stator core.(2) copper rivet is connected with control board, again aluminium rivet is connected with copper rivet, form the control board assembly, as Fig. 5, shown in Figure 6.(3) the control board assembly is fixed on the plastic stator core, is connected, form stator module by the reference column that exposes.(4) the stretching end cap is connected with stator module formation field frame assembly.

Claims

1. a plastic packaging motor is prevented the galvanic corrosion structure, comprise plastic stator core (2) and end cap (5), the outer rim of plastic stator core is provided with the contact pin fixing hole, one end of contact pin (3) is plugged in the contact pin fixing hole, it is characterized in that being provided with between plastic stator core and the end cap control board (4), control board is connected with end cap with plastic stator core respectively.

2. plastic packaging motor according to claim 1 is prevented the galvanic corrosion structure, and the outer rim that it is characterized in that described control board is provided with pin holes (9) and matches with the other end of contact pin, is equipped with rivet (6) or screw is fixedlyed connected with end cap in central shaft hole (7) outer periphery.

3. plastic packaging motor according to claim 1 and 2 is prevented the galvanic corrosion structure, it is characterized in that described control board is circle or D shape, and the central shaft hole periphery also is provided with fairlead (8).

4. plastic packaging motor according to claim 2 is prevented the galvanic corrosion structure, it is characterized in that described end cap is a cup-shaped, the end face that turns up is provided with flange (11) and cooperates with the control board centre bore, and the relevant position also is provided with rivet hole (10) or screw hole is fixedlyed connected with control board.

5. plastic packaging motor according to claim 1 is prevented the galvanic corrosion structure, it is characterized in that the quantity of described contact pin, rivet or screw is respectively one or more.