CN202759717U

CN202759717U - Motor controller

Info

Publication number: CN202759717U
Application number: CN201190000091.9U
Authority: CN
Inventors: 潘明攀
Original assignee: Zhongshan Broad Ocean Motor Co Ltd
Current assignee: Zhongshan Broad Ocean Motor Co Ltd
Priority date: 2011-05-17
Filing date: 2011-05-17
Publication date: 2013-02-27
Anticipated expiration: 2021-05-17
Also published as: WO2012155336A1

Abstract

The utility model relates to a motor controller, comprising a control box and a circuit board. An electronic component is mounted on the circuit board. A surface of the circuit board is covered by at least one casting glue layer thereon. The circuit board is placed in a cavity of the control box and is mounted and connected with the inner wall of the control box. The motor controller is small in amount of casting glue and low in manufacture cost.

Description

A kind of electric machine controller

Technical field:

The utility model relates to a kind of electric machine controller.

Background technology:

As shown in Figure 1, traditional electric machine controller is by drawing together control box 1 and wiring board 2, at wiring board 2 electronic devices and components 3 are installed, need for moistureproof and secret, general wiring board 2 is placed on cavity 11 bottoms of control box 1, then the liquid casting glue 4 with melting is cast in cavity 11 the insides, wiring board 2 is embedded into liquid casting glue 4 the insides of melting, after casting glue solidifies, and wiring board 2, casting glue 4 and control box 1 form an integral body, this mode glue consumption is many, and the bad control of glue amount, casting glue itself is very expensive, and a lot of short components and parts are by thick covering, and any components and parts of the height that has also only have very thin one deck, have much wastes.

Summary of the invention:

A purpose of the present utility model provides a kind of electric machine controller, and its casting glue consumption is little, low cost of manufacture.

The utility model electric machine controller is to be achieved by following technical scheme.

A kind of electric machine controller comprises control box and wiring board, and electronic devices and components are installed in the circuit board, is coated with at least one deck casting glue layer in PCB surface, and wiring board places the cavity the inside of control box and installs with the inwall of control box and couples together.

The cavity bottom of control box described above arranges several steps, and on the edge bearing microscope carrier rank of wiring board, screw is installed in wiring board on the step.

Portions of electronics components and parts on the wiring board described above protrude the embedding glue-line.

The bottom of wiring board described above and sidepiece form the space.

Described abovely be coated with two layers of embedding glue-line in PCB surface.

Embedding glue-line described above is full-bodied component cement.

Electric machine controller of the present utility model is compared with prior art had a beneficial effect: 1) be coated with at least one deck casting glue layer on the PCB surface of the present utility model, wiring board places the cavity the inside of control box and installs with the inwall of control box and couples together, and unlike the mode of traditional cavity bottom that is cast in control box, greatly save glue consumption, reduce product cost, reach simultaneously purpose moistureproof and that maintain secrecy.2) casting glue of the present utility model is not the whole electronic devices and components that all cover on the wiring board, and wherein higher portions of electronics components and parts protrude the embedding glue-line, therefore further saves glue consumption, reduces product cost; 3) bottom of wiring board and sidepiece form the space, are convenient to Air Flow, accelerate heat radiation.

Description of drawings:

Fig. 1 is the structure cutaway view of conventional motors controller;

Fig. 2 is the structure cutaway view of the utility model electric machine controller;

Fig. 3 is the A-A partial enlarged drawing of Fig. 2;

Fig. 4 is a part of flow chart of the production method of the utility model electric machine controller;

Fig. 5 is another part flow chart of the production method of the utility model electric machine controller.

Embodiment:

Also by reference to the accompanying drawings the utility model is described in further detail below by specific embodiment.

As shown in Figures 2 and 3, a kind of electric machine controller, comprise control box 1 and wiring board 2, at wiring board 2 electronic devices and components 3 are installed, be coated with at least one deck casting glue layer 4 on wiring board 2 surfaces, wiring board 2 places cavity 11 the insides of control box 1 and installs with the inwall of control box 1 and couples together, cavity 11 bottoms of control box 1 arrange several steps 12, on the edge bearing microscope carrier rank 12 of wiring board 2, screw 6 is installed in wiring board 2 on the step 12, portions of electronics components and parts 3 on the wiring board 2 protrude embedding glue-line 4, the bottom of wiring board 2 and sidepiece form space 5, be coated with two layers of embedding glue-line 41 on wiring board 2 surfaces, 42, embedding glue-line 4 is full-bodied component cements.

As shown in Figure 4 and Figure 5, a kind of production method of electric machine controller is characterized in that: it is comprised of following steps:

A) produce control box and with the wiring board of electronic devices and components;

B) past receptacle is poured the casting glue of liquid molten into;

C) will be immersed in the wiring board of electronic devices and components the container that casting glue is housed;

D) take out wiring board from container and carry out drying and processing, cover one deck embedding glue-line in PCB surface;

F) will be installed in the control box with the wiring board of embedding glue-line.

Above-mentioned at step D) the rear step e that increases): again wiring board is immersed in the container that casting glue is housed, then takes out wiring board and carry out drying and processing, cover second layer embedding glue-line in PCB surface.

The utility model will be immersed in the wiring board of electronic devices and components the container that casting glue is housed, take out wiring board from container again and carry out drying and processing, cover one deck embedding glue-line in PCB surface, compare in the mode of the cavity bottom of control box with traditional cast casting glue, greatly save the casting glue consumption, save cost, reach simultaneously purpose moistureproof and that maintain secrecy.

Claims

1. electric machine controller, comprise control box and wiring board, electronic devices and components are installed in the circuit board, it is characterized in that: be coated with at least one deck casting glue layer in PCB surface, wiring board places the cavity the inside of control box and installs with the inwall of control box and couples together.

2. a kind of electric machine controller according to claim 1, it is characterized in that: the cavity bottom of control box arranges several steps, and on the edge bearing microscope carrier rank of wiring board, screw is installed in wiring board on the step.

3. a kind of electric machine controller according to claim 1 and 2 is characterized in that: the portions of electronics components and parts protrusion embedding glue-line on the wiring board.

4. a kind of electric machine controller according to claim 3 is characterized in that: the bottom of wiring board and sidepiece formation space.

5. a kind of electric machine controller according to claim 3 is characterized in that: be coated with two layers of embedding glue-line in PCB surface.

6. a kind of electric machine controller according to claim 3, it is characterized in that: the embedding glue-line is full-bodied component cement.