CN205123646U - High power density low pressure motor drive - Google Patents
High power density low pressure motor drive Download PDFInfo
- Publication number
- CN205123646U CN205123646U CN201520907681.XU CN201520907681U CN205123646U CN 205123646 U CN205123646 U CN 205123646U CN 201520907681 U CN201520907681 U CN 201520907681U CN 205123646 U CN205123646 U CN 205123646U
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- China
- Prior art keywords
- drive plate
- control board
- shell
- driver according
- driver
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- 230000017525 heat dissipation Effects 0.000 claims abstract description 8
- 238000005538 encapsulation Methods 0.000 claims abstract description 5
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 8
- 239000010949 copper Substances 0.000 claims description 8
- 229910052802 copper Inorganic materials 0.000 claims description 8
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 4
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 2
- 229910052782 aluminium Inorganic materials 0.000 claims description 2
- 229910052759 nickel Inorganic materials 0.000 claims description 2
- 238000007747 plating Methods 0.000 claims description 2
- 230000007704 transition Effects 0.000 claims 1
- 238000005476 soldering Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 239000011324 bead Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 230000005855 radiation Effects 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 239000004411 aluminium Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000005669 field effect Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229910044991 metal oxide Inorganic materials 0.000 description 1
- 150000004706 metal oxides Chemical class 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 230000003313 weakening effect Effects 0.000 description 1
Abstract
The utility model provides a high power density low pressure motor drive, including shell, control panel, drive plate, fin, in the shell is arranged in to control panel and drive plate, and the control panel is located the drive plate upside, be connected fixedly between control panel and the drive plate through the contact pin, the drive plate bottom sets up a pad, and the pad is connected with the heat dissipation dish, the heat dissipation dish is connected with the shell. It converts busbar voltage into below the 10V power supply circuit to set up one on the control panel, power supply circuit is control panel and drive plate power supply, all be equipped with the embedment mouth on shell, control panel, the drive plate for encapsulating after the driver encapsulation finishes. This driver can improve the power density of driver, makes the driver have better radiating efficiency to can normally work under very low voltage.
Description
Technical field
The utility model relates to a kind of motor servo Driving technique, particularly a kind of high power density low voltage motor driver.
Background technology
High power density low voltage motor driver belongs to the part in motor servo system, be used to the control appliance controlling the operation of servomotor high accuracy, heat radiation and Power Management Design are then significant design parts wherein, and this driver is gathered around at extraordinary industrial control field and is widely used.Released similar motor driver abroad at present, but its radiating effect is unsatisfactory, easily occurs the system failure under high temperature, and power supply buses minimum voltage is also at more than 10V.
Summary of the invention
The purpose of this utility model is to provide a kind of high power density low voltage motor driver, and it can improve the power density of driver, makes driver have good radiating efficiency, and under can being normally operated in very low voltage.
A kind of high power density low voltage motor driver, comprises shell, control board, drive plate, fin; Described control board and drive plate are placed in shell, and control board is positioned on the upside of drive plate; Be connected and fixed by contact pin between described control board and drive plate; Arrange a pad bottom drive plate, pad is connected with heat dissipation plate; Heat dissipation plate is connected with shell.Described control board is arranged the power circuit that busbar voltage to be converted to below 10V by; Described power circuit is that control board and drive plate are powered; Described shell, control board, drive plate are equipped with embedding mouth, for encapsulating after driver encapsulation.
Further, the embedding mouth on described shell, control board, drive plate is two, and the embedding mouth on its housing is arranged at shell upper bottom surface.
Further, described control board is six laminates, and thickness is 0.8mm, and internal layer has more than 50% area to apply copper.
Further, described drive plate is six laminates, and thickness is 0.8mm, and internal layer has more than 80% area, and the deposited copper of institute is used for thermal conductance in drive plate bottom land.
The utility model compared with prior art, have the following advantages: (1) the utility model is pasted with a power circuit on control board, busbar voltage higher than 10V can be converted to the operating voltage lower than 10V by this circuit, meets voltage devices work; (2) the utility model adopts the means such as " control board and drive plate adopt and apply copper design " " in the enclosure encapsulating " " pad between drive plate and heating panel " that driver can be made to have good radiating efficiency.
Below in conjunction with Figure of description, the utility model is described further.
Accompanying drawing explanation
Fig. 1 is structure diagram of the present utility model.
Fig. 2 is drive plate device layout schematic diagram.
Fig. 3 is that driver control electricity is for electrical schematic.
Fig. 4 is control board and drive plate parameter schematic diagram.
Embodiment
Composition graphs 1, a kind of high power density low voltage motor driver, comprises shell 1, control board 2, drive plate 3, fin 4; Described control board 2 and drive plate 3 to be placed in shell 1, and control board 2 is positioned on the upside of drive plate 3; Be connected and fixed by contact pin 5 between described control board 2 and drive plate 3; Arrange a pad 6 bottom drive plate 3, pad 6 is connected with heat dissipation plate 4; Heat dissipation plate 4 is connected with shell 1.Described control board 2 is arranged the power circuit 2-1 that busbar voltage to be converted to below 10V by, described power circuit 2-1 is that control board and drive plate are powered; Described shell 1, control board 2, drive plate 3 are equipped with embedding mouth, for encapsulating after driver encapsulation.
After encapsulation, volume is 55mm × 50mm × 16mm, maximumly drive 960W motor, bus Power supply scope is 7.5 ~ 59V, inner printed board is designed to two-layer, control board 2 is upper, drive plate 3 under, to be connected by contact pin 5 between top level control plate 2 with lower floor drive plate 3 and fixing, contact pin 5 adopts welding manner with being connected between printed board, drive plate 3 bottom center has a square pads 6, be welded in fin 4 by the mode of Reflow Soldering, shell 1 makes box-like being stuck on heating panel 4 by the mode of injection mo(u)lding.
Described control board 2 is six laminates, and thickness is 0.8mm (as shown in Figure 4), and internal layer large area applies copper, can improve radiating efficiency.
Described control board 2 is made up of power circuit 2-1, control circuit, detection and telecommunication circuit, and wherein DC bus-bar voltage is converted to below 10V by power circuit 2-1, and the utility model is got 5V voltage and powered (as shown in Figure 3) to control board and drive plate.Control circuit mainly comprises DSP signal processor circuit and logic processing circuit.Detect and mainly comprise DC-bus voltage sampling circuit, analog input interface circuit and I/O signal interface circuit with telecommunication circuit, then this numeral, analog input output signal are normalized, send into DSP after digitized processing.
Drive plate 3 described in composition graphs 2 is six laminates, and thickness is 0.8mm (as shown in Figure 4), and internal layer large area applies copper, can improve radiating efficiency.6 attachment power device Metal-Oxide Semiconductor field-effect transistor (MOSFET) 3-4 are symmetrical parallel is loaded on printed board central authorities by Reflow Soldering mode, by deposited copper heat conduction in bottom square welding rod, then to be welded on fin by the mode of Reflow Soldering.At side MOSFET other laying temperature sensor chip 3-3, detect real time temperature to control power stage.Primarily of power circuit 3-3, inverter circuit, testing circuit composition, wherein power circuit 3-3 carries out boost conversion as input power (as shown in Figure 3) to drive plate 3 using 5V electricity on control board to 12V.Inverter circuit adopts linear PWM driving method, and the method can realize the four-quadrant running of motor.Testing circuit mainly comprises three-phase current sample circuit, is then normalized this analog signal, sends into DSP after digitized processing.In Fig. 2,3-1 is embedding mouth on drive plate 3, and the region of 3-2 instruction is pin field.Described actuator power inverter circuit ground single-point should be taked to be connected with control ground or single-point magnetic bead connects, and being connected in analog, weakening the interference between different electrical signals with this in control circuit with digitally answering single-point magnetic bead.
The material of described fin 4 is aluminium, and top layer nickel plating is beneficial to Reflow Soldering and can effectively dispels the heat.
The embedding mouth of each reserved 2 2mm on control board 2, drive plate 3 and shell, first upper and lower two plates are welded to connect by contact pin 5 during assembling, be welded to connect with bottom heat radiation sheet again, the upper plastic casing of last card again, after assembling, carry out encapsulating from one of them embedding mouth, be confirmed whether to fill by another embedding mouth, effectively can strengthen radiating effect and the reliability of whole device.
Claims (10)
1. a high power density low voltage motor driver, comprises shell, control board, drive plate, fin; Described control board and drive plate are placed in shell, and control board is positioned on the upside of drive plate; Be connected and fixed by contact pin between described control board and drive plate; Arrange a pad bottom drive plate, pad is connected with heat dissipation plate; Heat dissipation plate is connected with shell, it is characterized in that,
Described control board is arranged the power circuit that busbar voltage to be converted to below 10V by;
Described power circuit is that control board and drive plate are powered;
Described shell, control board, drive plate are equipped with embedding mouth, for encapsulating after driver encapsulation.
2. driver according to claim 1, is characterized in that, busbar voltage is converted to 5V voltage by described power circuit.
3. driver according to claim 1, is characterized in that, the embedding mouth on described shell, control board, drive plate is two, and the embedding mouth on its housing is arranged at shell upper bottom surface.
4. driver according to claim 3, is characterized in that, described embedding mouth internal diameter is 2mm.
5. driver according to claim 1 and 2, is characterized in that, described control board is six laminates, and thickness is 0.8mm, and internal layer has more than 50% area to apply copper.
6. driver according to claim 1, is characterized in that, described drive plate is six laminates, and thickness is 0.8mm, and internal layer has more than 80% area, and the deposited copper of institute is used for thermal conductance in drive plate bottom land.
7. driver according to claim 6, is characterized in that, described drive plate is pasted with 6 power device MOSFET, and every 3 of described MOSFET is row, and two row MOSFET are symmetrical arranged.
8. driver according to claim 7, is characterized in that, described drive plate is also pasted with temperature sensor, when power device temperature is more than a fixed value, cuts off the power supply to power device.
9. the driver according to claim 7 or 8, is characterized in that, described drive plate is also pasted with a second source circuit, and the voltage transitions provided by power circuit is the operating voltage of drive plate.
10. driver according to claim 1, is characterized in that, fin is aluminum, top layer nickel plating.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520907681.XU CN205123646U (en) | 2015-11-12 | 2015-11-12 | High power density low pressure motor drive |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520907681.XU CN205123646U (en) | 2015-11-12 | 2015-11-12 | High power density low pressure motor drive |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205123646U true CN205123646U (en) | 2016-03-30 |
Family
ID=55579217
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520907681.XU Active CN205123646U (en) | 2015-11-12 | 2015-11-12 | High power density low pressure motor drive |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205123646U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105262407A (en) * | 2015-11-12 | 2016-01-20 | 中国船舶重工集团公司第七一六研究所 | High-power density low-voltage motor driver |
-
2015
- 2015-11-12 CN CN201520907681.XU patent/CN205123646U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105262407A (en) * | 2015-11-12 | 2016-01-20 | 中国船舶重工集团公司第七一六研究所 | High-power density low-voltage motor driver |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20201118 Address after: 222061 Jiangsu city of Lianyungang Province Lake Road No. 18 Patentee after: 716TH RESEARCH INSTITUTE OF CHINA SHIPBUILDING INDUSTRY Corp. Patentee after: CSIC Information Technology Co.,Ltd. Address before: 222061 Jiangsu city of Lianyungang Province Lake Road No. 18 Patentee before: 716TH RESEARCH INSTITUTE OF CHINA SHIPBUILDING INDUSTRY Corp. Patentee before: JIANGSU JARI TECHNOLOGY GROUP Co.,Ltd. |
|
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 222061 No.18, Shenghu Road, Lianyungang City, Jiangsu Province Patentee after: The 716th Research Institute of China Shipbuilding Corp. Patentee after: CSIC Information Technology Co.,Ltd. Address before: 222061 No.18, Shenghu Road, Lianyungang City, Jiangsu Province Patentee before: 716TH RESEARCH INSTITUTE OF CHINA SHIPBUILDING INDUSTRY Corp. Patentee before: CSIC Information Technology Co.,Ltd. |
|
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 222061 No.18, Shenghu Road, Lianyungang City, Jiangsu Province Patentee after: The 716th Research Institute of China Shipbuilding Corp. Patentee after: China Shipbuilding Digital Information Technology Co.,Ltd. Address before: 222061 No.18, Shenghu Road, Lianyungang City, Jiangsu Province Patentee before: The 716th Research Institute of China Shipbuilding Corp. Patentee before: CSIC Information Technology Co.,Ltd. |