CN215345243U - Circuit board assembly and motor - Google Patents
Circuit board assembly and motor Download PDFInfo
- Publication number
- CN215345243U CN215345243U CN202121725459.XU CN202121725459U CN215345243U CN 215345243 U CN215345243 U CN 215345243U CN 202121725459 U CN202121725459 U CN 202121725459U CN 215345243 U CN215345243 U CN 215345243U
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- circuit board
- component
- pin header
- volume
- board assembly
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- 239000003990 capacitor Substances 0.000 claims description 8
- 238000004519 manufacturing process Methods 0.000 abstract description 11
- 239000000463 material Substances 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000005476 soldering Methods 0.000 description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 2
- 239000011889 copper foil Substances 0.000 description 2
- 239000005022 packaging material Substances 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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Abstract
The application provides a circuit board assembly and a motor. The circuit board assembly comprises a first circuit board, a second circuit board and a pin header; the second circuit board is superposed above the first circuit board, one end of the pin header is connected to the first circuit board, and the other end of the pin header is connected to the second circuit board; the first circuit board is provided with a first component, and the second circuit board is provided with a second component; the first component has a volume greater than a volume of the second component. The two-layer circuit board structure that stacks from top to bottom is adopted to set up the great components and parts of volume on the first circuit board of lower floor, set up the less components and parts of volume on the second circuit board of upper strata, and connect two-layer circuit board through arranging the needle mode, through this kind of built-up connection's mode, make full use of the space of the first circuit board top of lower floor, thereby can be with these two circuit board built-up assembly in same electrical apparatus box, practiced thrift the production material cost greatly.
Description
Technical Field
The application belongs to the technical field of motors, and particularly relates to a circuit board assembly and a motor.
Background
Most of the existing motor controllers are arranged in a motor shell in a single-board mode, when the required power of a motor is high, the required components of the motor controller are more and need to comprise a switching power supply circuit, so that the area of a circuit board is required to be large enough, and an electrical box for storing the motor controller is required to have the same sectional area size.
Therefore, some controller schemes separately design the switching power supply circuit on another PCB, and place the two circuit boards on the upper and lower sides for electrical connection by means of inter-board connection, etc. such connection has certain defects, for example, the assembly of the control boards may not be firm enough, and in the assembly process, it is necessary to assemble the lower control board into the electrical box and then install the other control board thereon, because the lower board has various large-sized jack components and space limitations in the electrical box, the assembly process is difficult and tedious, the production cost is high, and the production efficiency is low.
SUMMERY OF THE UTILITY MODEL
Therefore, the application provides a circuit board assembly and motor, can solve among the prior art assembly process seem more difficult and loaded down with trivial details, and manufacturing cost is higher, and production efficiency is than lower problem.
In order to solve the above problems, the present application provides a circuit board assembly comprising:
the pin header comprises a first circuit board, a second circuit board and pin headers; the second circuit board is superposed above the first circuit board, one end of the pin header is connected to the first circuit board, and the other end of the pin header is connected to the second circuit board;
the first circuit board is provided with a first component, and the second circuit board is provided with a second component; the first component has a volume greater than a volume of the second component.
Optionally, the first component is disposed at an edge of the first circuit board, and the second circuit board is disposed above a center of the first circuit board.
Optionally, the pin header comprises a double-ended male pin header.
Optionally, the distance between the stitches in the double-ended male header pin header is at least 2.54 mm.
Optionally, the first component comprises an electrolytic capacitor, a PTC resistor, a power module and a relay; the second component comprises a transformer.
Optionally, patch components are arranged on the first circuit board and the second circuit board.
Optionally, the patch type component on the first circuit board is arranged at a position right below the second circuit board.
According to another aspect of the present application, there is provided an electric machine comprising a circuit board assembly as described above.
Optionally, the motor includes an electrical box, and the circuit board assembly is disposed in the electrical box; the electric appliance box is round, the first circuit board is round, and the second circuit board is a fan-shaped body formed by two vertical line sections and a curve section in a surrounding mode.
The application provides a circuit board assembly, includes: the pin header comprises a first circuit board, a second circuit board and pin headers; the second circuit board is superposed above the first circuit board, one end of the pin header is connected to the first circuit board, and the other end of the pin header is connected to the second circuit board; the first circuit board is provided with a first component, and the second circuit board is provided with a second component; the first component has a volume greater than a volume of the second component.
The two-layer circuit board structure that stacks from top to bottom is adopted to set up the great components and parts of volume on the first circuit board of lower floor, set up the less components and parts of volume on the second circuit board of upper strata, and connect two-layer circuit board through arranging the needle mode, through this kind of built-up connection's mode, make full use of the space of the first circuit board top of lower floor, thereby can be with these two circuit board built-up assembly in same electrical apparatus box, practiced thrift the production material cost greatly.
Drawings
Fig. 1 is a schematic structural diagram of a circuit board assembly according to an embodiment of the present application;
fig. 2 is a schematic structural diagram of a first circuit board according to an embodiment of the present application;
fig. 3 is a schematic structural diagram of a second circuit board according to an embodiment of the present application;
fig. 4 is a schematic structural diagram of an electrical box according to an embodiment of the present application.
The reference numerals are represented as:
1. a first circuit board; 11. an electrolytic capacitor; 12. a PTC resistor; 2. a second circuit board; 21. a transformer; 3. arranging needles; 4. an electrical appliance box.
Detailed Description
Referring collectively to fig. 1-4, according to an embodiment of the present application, a circuit board assembly includes:
a first circuit board 1, a second circuit board 2 and a pin header 3; the second circuit board 2 is stacked above the first circuit board 1, one end of the pin header 3 is connected to the first circuit board 1, and the other end of the pin header is connected to the second circuit board 2;
a first component is arranged on the first circuit board 1, and a second component is arranged on the second circuit board 2; the first component has a volume greater than a volume of the second component.
Two-layer circuit board structure that stacks from top to bottom is adopted to set up the great components and parts of volume on the first circuit board 1 of lower floor, set up the less components and parts of volume on the second circuit board 2 of upper strata, and connect two-layer circuit board through arranging needle 3 mode, through this kind of built-up connection's mode, make full use of the space of the first circuit board 1 top of lower floor, thereby can be with these two circuit board built-up assembly in same electrical apparatus box 4, practiced thrift production material cost greatly.
For the size of the first component and the second component, the occupied area can be selected for limitation, and if the height is restricted, the occupied area of the component with larger size is correspondingly larger.
The two circuit boards are connected by adopting a pin header 3 mode, for example, the two circuit boards are fixed by adopting copper foils and soldering tin around corresponding connecting positions of the two circuit boards simultaneously, so that the two circuit boards are firmly and electrically connected.
In some embodiments, the first component is provided at an edge of the first circuit board 1 and the second circuit board 2 is provided over a center of the first circuit board 1.
The first component is arranged at the edge of the first circuit board 1, so that the second component is arranged at the center of the first circuit board 1 and above the center and the vicinity of the center, the occupied area of the whole circuit board assembly is only the occupied area of the first circuit board 1, and compared with the traditional single circuit board structure, the occupied area is greatly reduced.
In some embodiments, pin header 3 comprises a double-ended male pin header.
The double-end male pin header is connected with the two circuit boards, and the two circuit boards can be fixed by adopting copper foils and soldering tin around corresponding connecting positions at the same time, so that the two circuit boards are stably and electrically connected.
In some embodiments, the distance between the stitches in the double-ended male header pin header is at least 2.54 mm.
And the electrical use safety requirement can be met by adopting the preset pin spacing.
In some embodiments, the first component includes an electrolytic capacitor 11, a PTC resistor 12, a power module, and a relay; the second component comprises a transformer 21.
The circuit board is provided with components, mainly comprising an electrolytic capacitor 11, a PTC resistor 12, a power module, a relay, a transformer 21 and the like, and the components are simply classified according to the size and are respectively arranged on different circuit boards to realize structure optimization.
For the design of the circuit board, firstly, the distribution of unit circuits related to large-volume components needs to be determined, because the 470uF electrolytic capacitor 11 with the largest volume is arranged in an input power circuit, a space is reserved for ensuring that the lower first circuit board 1 has a part of the second circuit board 2 above the complete area, the part of unit circuits needs to be designed on the first circuit board 1, and the 470uF electrolytic capacitor 11, the PTC resistor 12 and the larger components of the relay in the circuit, which have the same volume, need to be arranged at the edge of the bottom circuit board; in the switching power supply circuit, there are also large-volume components such as the transformer 21 and the electrolytic capacitor 11, and this circuit is designed on the second circuit board 2 on the upper layer.
In some embodiments, the first circuit board 1 and the second circuit board 2 are both provided with chip components.
For the components on the conventional circuit board, the conventional circuit board also comprises surface mount components, and after the layout of the circuits with large volume or occupied area of the two parts is determined, the layout of the rest circuits is carried out, and the circuits basically consist of surface mount components.
In some embodiments, the surface mount components on the first circuit board 1 are disposed at a position directly below the second circuit board 2.
The distance between the first circuit board 1 and the second circuit board 2 is only the size of the pin header 3, and the surface mount type components are directly arranged at the position right below the second circuit board 2, so that the space can be fully utilized.
According to another aspect of the present application, there is provided an electric machine comprising a circuit board assembly as described above.
Optionally, the motor includes an electrical box 4, and the circuit board assembly is disposed in the electrical box 4; the electrical box 4 is round, the first circuit board 1 is round, and the second circuit board 2 is a fan-shaped part surrounded by two vertical line sections and a curve section.
Based on the shape of the conventional electrical box 4, the shape of the first circuit board 1 can be properly adjusted, for example, the electrical box 4 is circular, the first circuit board 1 is also of a circular structure and is arranged in the electrical box 4, meanwhile, the second circuit board 2 is of an irregular fan-shaped structure and occupies a part of the space above the first circuit board 1, and different components are respectively arranged on the first circuit board 1 and the second circuit board 2; the size of the electrical box 4 can be relatively reduced, thereby reducing the requirements for packaging materials.
In the production process of the circuit board assembly, the upper circuit board and the lower circuit board firstly respectively complete the welding of a surface mount component and a jack component through a reflow oven and a wave soldering oven, when the assembly link is reached, a production line worker carries out preliminary electrical connection on two surface mounted circuit boards through a double-end male pin header 3, then a hole groove of a combined integral controller is aligned to a positioning column hole in an electrical box 4 and placed in the electrical box 4, and finally corresponding screws are locked on the positioning holes to complete the assembly of the circuit boards. Compared with the original assembly mode, the assembly process is simple, and screws used for fixing the IPM module on the lower layer plate are omitted, so that the processing flow is simplified, and the production efficiency is improved.
In an actual motor product, it is often required to achieve a specific air volume under a specific power, and the air volume is affected by the cross-sectional area of the electrical box 4, if all the components of the second circuit board 2 of the controller are laid on the first circuit board 1, the area of the first circuit board 1 must be enlarged, and the surface area of the electrical box 4 is increased accordingly, so that the air volume of the motor under the same power is reduced, which is obviously not allowed. The sectional area size of the electrical box 4 can be effectively reduced through the connection mode of the upper layer circuit board and the lower layer circuit board, and the requirement on a packaging material can be reduced in the production process.
It is easily understood by those skilled in the art that the above embodiments can be freely combined and superimposed without conflict.
The above description is only exemplary of the present application and should not be taken as limiting the present application, as any modification, equivalent replacement, or improvement made within the spirit and principle of the present application should be included in the protection scope of the present application. The foregoing is only a preferred embodiment of the present application, and it should be noted that, for those skilled in the art, several modifications and variations can be made without departing from the technical principle of the present application, and these modifications and variations should also be considered as the protection scope of the present application.
Claims (9)
1. A circuit board assembly, comprising:
the circuit board comprises a first circuit board (1), a second circuit board (2) and a pin header (3); the second circuit board (2) is overlapped above the first circuit board (1), one end of the pin header (3) is connected to the first circuit board (1), and the other end of the pin header is connected to the second circuit board (2);
a first component is arranged on the first circuit board (1), and a second component is arranged on the second circuit board (2); the first component has a volume greater than a volume of the second component.
2. A circuit board assembly according to claim 1, characterized in that the first component is arranged at the edge of the first circuit board (1) and the second circuit board (2) is arranged above the first circuit board (1) at the centre.
3. A circuit board assembly according to claim 1 or 2, characterized in that the pin header (3) comprises a double-ended male pin header.
4. A circuit board assembly according to claim 3, wherein the pins of the double ended male header pin header are spaced apart by a distance of at least 2.54 mm.
5. A circuit board assembly according to claim 1, wherein the first component comprises an electrolytic capacitor (11), a PTC resistor (12), a power module and a relay; the second component comprises a transformer (21).
6. A circuit board assembly according to claim 1 or 5, characterised in that patch components are provided on both the first circuit board (1) and the second circuit board (2).
7. The circuit board assembly according to claim 6, wherein the patch components on the first circuit board (1) are provided at positions directly below the second circuit board (2).
8. An electrical machine comprising a circuit board assembly according to any one of claims 1 to 7.
9. The electric machine according to claim 8, characterized in that it comprises an electric box (4), said circuit board assembly being arranged inside said electric box (4); the electric appliance box (4) is round, the first circuit board (1) is round, and the second circuit board (2) is a fan-shaped body formed by two perpendicular line sections and a curve section in a surrounding mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121725459.XU CN215345243U (en) | 2021-07-27 | 2021-07-27 | Circuit board assembly and motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121725459.XU CN215345243U (en) | 2021-07-27 | 2021-07-27 | Circuit board assembly and motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215345243U true CN215345243U (en) | 2021-12-28 |
Family
ID=79573022
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121725459.XU Active CN215345243U (en) | 2021-07-27 | 2021-07-27 | Circuit board assembly and motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215345243U (en) |
-
2021
- 2021-07-27 CN CN202121725459.XU patent/CN215345243U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |