CN110866890A - Interference detection method for PCB and structural member - Google Patents
Interference detection method for PCB and structural member Download PDFInfo
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- CN110866890A CN110866890A CN201910715242.1A CN201910715242A CN110866890A CN 110866890 A CN110866890 A CN 110866890A CN 201910715242 A CN201910715242 A CN 201910715242A CN 110866890 A CN110866890 A CN 110866890A
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- 238000001514 detection method Methods 0.000 title claims abstract description 23
- 238000004806 packaging method and process Methods 0.000 claims abstract description 33
- 241000282312 Proteles Species 0.000 claims description 3
- 238000005305 interferometry Methods 0.000 claims 5
- 238000005538 encapsulation Methods 0.000 claims 1
- 238000000034 method Methods 0.000 abstract description 11
- 238000013461 design Methods 0.000 abstract description 8
- 238000012356 Product development Methods 0.000 abstract description 6
- 239000000306 component Substances 0.000 description 5
- 238000009434 installation Methods 0.000 description 4
- 238000004891 communication Methods 0.000 description 2
- 239000008358 core component Substances 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 238000004364 calculation method Methods 0.000 description 1
- 239000003990 capacitor Substances 0.000 description 1
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T7/00—Image analysis
- G06T7/0002—Inspection of images, e.g. flaw detection
- G06T7/0004—Industrial image inspection
- G06T7/001—Industrial image inspection using an image reference approach
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T17/00—Three dimensional [3D] modelling, e.g. data description of 3D objects
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T2207/00—Indexing scheme for image analysis or image enhancement
- G06T2207/30—Subject of image; Context of image processing
- G06T2207/30108—Industrial image inspection
- G06T2207/30141—Printed circuit board [PCB]
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Abstract
The invention provides a method for detecting interference between a PCB and a structural member, which comprises the following steps: establishing a three-dimensional packaging file of the device; establishing a three-dimensional PCB model by using the three-dimensional packaging file; establishing a three-dimensional structure model of the structural part; and matching the three-dimensional PCB model and the three-dimensional structure model, and detecting whether the PCB interferes with the structural part. By the method, the interference condition of the PCB and the structural part is detected in the design stage of the PCB and the structural part, if the interference accident condition occurs, the interference detection can be timely carried out without waiting for the actual product, the accuracy of the product structure is ensured, the working efficiency is improved, and the product development progress is accelerated.
Description
Technical Field
The invention relates to the technical field of air conditioners, in particular to a method for detecting interference between a PCB and a structural member.
Background
The electric control panel is an important part of the air conditioner, and is assembled in the electric control box. In the design stage of the main control board, the device type selection and arrangement of the main control board meet the assembly requirements of the electric control box. In the product development process, communication negotiation and mutual integration can be carried out between a main control board designer and an electric control box designer, so that structural problems such as interference between the main control board and the electric control box can be avoided.
In the prior art, a designer of a main control board designs a two-dimensional PCB model, and matches the main control board and an assembly box in a data calculation and theoretical analysis manner, so that careless mistakes are inevitably caused, and the main control board and an electric control box are interfered. And this condition cannot be detected until the model of the sample is trial-produced. Once the interference is found, the main control board or the electric control box must be redesigned, so that the working efficiency is reduced, and the product development progress is influenced.
Disclosure of Invention
The invention solves the problem of how to avoid reducing the working efficiency and influencing the product development progress due to the interference of the main control board and the electric control box.
In order to solve the above problem, the present invention provides a method for detecting interference between a PCB and a structural member, comprising:
establishing a three-dimensional packaging file of the device;
establishing a three-dimensional PCB model by using the three-dimensional packaging file;
establishing a three-dimensional structure model of the structural part;
and matching the three-dimensional PCB model and the three-dimensional structure model, and detecting whether the PCB interferes with the structural part.
By the method, the interference condition of the PCB and the structural part is detected in the design stage of the PCB and the structural part, if the interference accident condition occurs, the interference detection can be timely carried out without waiting for the actual product, the accuracy of the product structure is ensured, the working efficiency is improved, and the product development progress is accelerated.
In an embodiment of the present invention, the step of creating a three-dimensional package file of the device includes:
and drawing a three-dimensional packaging file of the device in three-dimensional software, and storing the three-dimensional packaging file to a three-dimensional packaging library.
In an embodiment of the present invention, the step of building a three-dimensional PCB model using the three-dimensional package file includes:
and importing the three-dimensional packaging file into PCB design software, and drawing a PCB in the PCB design software by using the three-dimensional packaging file to obtain the three-dimensional PCB model.
In an embodiment of the present invention, the step of establishing a three-dimensional structure model of the structural member comprises:
and drawing a three-dimensional structure model of the structural part in three-dimensional software.
In an embodiment of the present invention, the step of matching the three-dimensional PCB model and the three-dimensional structure model includes:
drawing the three-dimensional structure model of the structure in three-dimensional software;
importing the three-dimensional PCB model into the three-dimensional software;
and splicing the three-dimensional PCB model and the three-dimensional structure model according to the actual position relation of the PCB and the structural member.
In an embodiment of the present invention, the step of detecting whether the PCB interferes with the structural member includes:
and judging whether a device interferes with the structural part or not for the spliced three-dimensional PCB model and the spliced three-dimensional structure model, and if so, outputting interference information.
In the embodiment of the invention, the PCB is a main control board of the air conditioner; the structural part is an electric control box of the air conditioner.
In an embodiment of the invention, the three-dimensional software comprises: at least one of PRO/E, UG.
In an embodiment of the present invention, the PCB design software includes: at least one of Cadence allogoro, AltiumDesigner, PADS, PROTEL.
Drawings
FIG. 1 is a flow chart of a method for detecting interference between a PCB and a structural member according to an embodiment of the present invention;
FIG. 2 is a three-dimensional package file for a chip;
FIG. 3 is a three-dimensional PCB model of a master control board;
FIG. 4 is a three-dimensional PCB model of the main control board and the electronic control box;
fig. 5 shows the interference detection result of the main control board and the electronic control box.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below.
The embodiment of the invention provides an interference detection method of a PCB and a structural part, which comprises the following steps of:
step S1: and establishing a three-dimensional packaging file of the device.
Step S2: and establishing a three-dimensional PCB model by using the three-dimensional packaging file.
Step S3: and establishing a three-dimensional structure model of the structural part.
Step S4: and matching the three-dimensional PCB model and the three-dimensional structure model, and detecting whether the PCB interferes with the structural part.
In this embodiment, the embodiment is described by taking the PCB as the main control board of the air conditioner and the structural member as the electric control box, but the embodiment is not limited thereto. The PCB may also be other circuit boards of the air conditioner besides the main control board, and the structural member may also be other structural members of the air conditioner besides the electrical control box. Further, the PCB may also be a circuit board of any electric and electronic device outside the air conditioner, and the structural member may also be a structural member of any electric and electronic device outside the air conditioner corresponding to the circuit board thereof.
The main control panel of the air conditioner is used for controlling the operation of the whole air conditioner and is a core component of the air conditioner. The main control panel is generally disposed inside the air conditioner. The air conditioner includes: the air conditioner comprises components such as a fan, a compressor, an air deflector and the like, and sensors such as a temperature sensor and a humidity sensor. The fan and the air deflector are driven by a driving device, such as a motor. The main control board is electrically connected with the temperature sensor and the humidity sensor to acquire environmental parameters such as temperature, humidity and the like. The main control board is electrically connected with the compressor, the fan, the motor of the air deflector and the like, and controls the operation of the air conditioner according to the instruction of the remote controller and the environmental parameters.
The main control board is used as a core component of the air conditioner and comprises a plurality of circuit devices in quantity and type. These circuit devices have both integrated circuit devices and discrete devices. Integrated circuit devices such as control chips, power chips, communication chips, etc., discrete devices such as capacitors, resistors, inductors, etc. The circuit devices on the main control board have respective shapes and sizes and are arranged on the main control board according to a certain layout.
In the air conditioner, a main control panel is fixed in an electric control box, and the electric control box is installed in the air conditioner. The electronic control box is generally a closed or semi-closed box body, and prevents an internal main control board from being interfered by the outside. For the electric control box, because the air conditioner has a plurality of internal parts and limited space, the installation space reserved for the electric control box is limited, and meanwhile, the electric control box cannot interfere with other parts in the air conditioner. Under these constraints, the electrical control box is as compact as possible and has a profile as close to the main control board as possible. In this case, interference may occur between the designed electronic control box and the circuit device of the main control board, which may result in difficult or even impossible assembly.
According to the method for detecting the interference between the PCB and the structural part, before the sample model is manufactured in a trial mode, the three-dimensional models of the PCB and the structural part are assembled through software simulation, the interference condition between the PCB and the structural part is detected in the design stage of the PCB and the structural part, and the rationality of product design is verified.
In the interference detection method of the present embodiment, a three-dimensional package file of the device is created in step S1.
In this step, a three-dimensional packaging file of the device is drawn in three-dimensional software, and the three-dimensional packaging file is stored in a three-dimensional packaging library. The three-dimensional software used in this step may be PRO/E, UG or the like.
Before drawing the three-dimensional packaging file of the device, firstly, determining which devices are used by the main control board. After the determination, parameters of the devices are acquired. The parameters include information on the shape, size, etc. of the device, which can be obtained by the device manufacturer.
After the parameters of the device are obtained, the three-dimensional packaging file of the device can be drawn in the three-dimensional software according to the parameters of the device. Fig. 2 shows a three-dimensional package file of a chip. The drawn three-dimensional packaging file can visually display the appearance and the size of the device.
After three-dimensional packaging files of all devices are drawn, a three-dimensional packaging library is established in three-dimensional software, and the three-dimensional packaging files of all the devices are stored in the three-dimensional packaging library for subsequent interference detection.
In the interference detection method of the present embodiment, in step S2, a three-dimensional PCB model is built by using the three-dimensional package file.
In this step, the three-dimensional packaging file is imported into PCB design software, and the PCB is drawn in the PCB design software by using the three-dimensional packaging file, so that the three-dimensional PCB model is obtained. The PCB design software used in this step may be Cadence allogoro, Altium Designer, PADS, PROTEL, etc.
In the process of drawing the PCB, according to the layout and wiring rules of the PCB, when a device is needed, the three-dimensional packaging file of the device is imported into PCB design software from a three-dimensional packaging library. And importing the three-dimensional packaging files of all the devices into PCB design software, and completing layout and wiring to obtain a three-dimensional PCB model as shown in FIG. 3. From the three-dimensional PCB model, the appearance of the PCB can be visually seen, including the appearance and the size of all devices on the PCB.
In the interference detection method of the present embodiment, a three-dimensional structure model of the structural member is created in step S3.
This step draws a three-dimensional structure model of the structural member in three-dimensional software. The three-dimensional software used in this step is still PRO/E, UG, etc. in step 1.
In the present embodiment, the three-dimensional structural model of the electrical control box is determined according to the installation space within the air conditioner. As mentioned above, the air conditioner has many parts, limited space, limited installation space for the electric control box, and the electric control box cannot interfere with other parts in the air conditioner. Under these constraints, the electrical control box is as compact as possible and has a profile as close to the main control board as possible.
In the interference detection method of the present embodiment, in step S4, the three-dimensional PCB model and the three-dimensional structure model are matched, and whether the PCB and the structural component interfere with each other is detected.
Step S4 first matches the three-dimensional PCB model and the three-dimensional structure model. The method specifically comprises the following steps:
and importing the three-dimensional PCB model established in the step S2 into the three-dimensional software.
And splicing the three-dimensional PCB model and the three-dimensional structure model according to the actual position relation of the PCB and the structural member.
After a three-dimensional structure model is established in three-dimensional software, interference detection can be carried out. And (3) importing the three-dimensional PCB model into three-dimensional software, so that in the three-dimensional software, the relative position of the main control board and the electric control box can be determined according to the actual position relation of the main control board and the electric control box, and the three-dimensional PCB model and the three-dimensional structure model are spliced together. The actual position relation refers to the installation position of the main control board in the electric control box after the main control board and the electric control box are processed into products. After the three-dimensional PCB model of the main control board and the three-dimensional structure model of the electric control box are spliced, the actual appearance shape can be obtained, as shown in FIG. 4.
And after the three-dimensional PCB model and the three-dimensional structure model are spliced, whether the main control board is interfered with the electric control box is detected. And if the device on the main control board is interfered with the electric control box, the three-dimensional software outputs interference information. If not, the three-dimensional software does not output the interference information.
As shown in fig. 5, the three-dimensional software has a three-dimensional detection function, and outputs interference information to prompt a user when the device is detected to interfere with the electronic control box. The interference information includes: interference position, part information. The interference position displays the specific position of interference between the main control board and the electric control box, and the part information gives the names and information of the two interfered parts.
Therefore, in the method for detecting the interference between the PCB and the structural component of the embodiment, the interference between the PCB and the structural component is detected in the design stage of the PCB and the structural component. Before the sample model is trial-manufactured, the three-dimensional models of the main control board and the electric control box are assembled through three-dimensional software and PCB design software, whether the main control board has devices and the electric control box is detected, and the rationality of product design is verified. If the interference accident situation occurs, the interference detection can be carried out in time without waiting for the actual product, so that the accuracy of the product structure is ensured, the working efficiency is improved, and the product development progress is accelerated.
Although the present invention is disclosed above, the present invention is not limited thereto. Various changes and modifications may be effected therein by one skilled in the art without departing from the spirit and scope of the invention as defined in the appended claims.
Claims (9)
1. An interference detection method for a PCB and a structural member is characterized by comprising the following steps:
establishing a three-dimensional packaging file of the device;
establishing a three-dimensional PCB model by using the three-dimensional packaging file;
establishing a three-dimensional structure model of the structural part;
and matching the three-dimensional PCB model and the three-dimensional structure model, and detecting whether the PCB interferes with the structural part.
2. The interferometry detection method of claim 1, wherein said step of creating a three-dimensional package file for the device comprises:
and drawing a three-dimensional packaging file of the device in three-dimensional software, and storing the three-dimensional packaging file to a three-dimensional packaging library.
3. The interferometry detection method of claim 1, wherein said step of building a three-dimensional PCB model using said three-dimensional encapsulation file comprises:
and importing the three-dimensional packaging file into PCB design software, and drawing a PCB in the PCB design software by using the three-dimensional packaging file to obtain the three-dimensional PCB model.
4. The interferometry detection method of claim 1, wherein said step of modeling a three-dimensional structure of said structure comprises:
and drawing a three-dimensional structure model of the structural part in three-dimensional software.
5. The interferometric detection method of claim 1, wherein the step of matching the three-dimensional PCB model and the three-dimensional structure model comprises:
drawing the three-dimensional structure model of the structure in three-dimensional software;
importing the three-dimensional PCB model into the three-dimensional software;
and splicing the three-dimensional PCB model and the three-dimensional structure model according to the actual position relation of the PCB and the structural member.
6. The interference detection method of claim 5 wherein said step of detecting whether said PCB interferes with said structure comprises:
and judging whether a device interferes with the structural part or not for the spliced three-dimensional PCB model and the spliced three-dimensional structure model, and if so, outputting interference information.
7. The interference detection method according to claim 1, wherein the PCB is a main control board of an air conditioner; the structural part is an electric control box of the air conditioner.
8. The interferometry detection method according to claim 2, 4 or 5, wherein said three-dimensional software comprises: at least one of PRO/E, UG.
9. The interferometry detection method of claim 3, wherein said PCB design software comprises: at least one of Cadenocerallegro, Altium Designer, PADS, PROTEL.
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| CN201910715242.1A CN110866890A (en) | 2019-08-02 | 2019-08-02 | Interference detection method for PCB and structural member |
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| CN201910715242.1A CN110866890A (en) | 2019-08-02 | 2019-08-02 | Interference detection method for PCB and structural member |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114051374A (en) * | 2021-10-29 | 2022-02-15 | 株洲麦格米特电气有限责任公司 | Avoidance method, avoidance inspection method, package inspection unit and structure inspection tool |
| CN116011398A (en) * | 2023-03-27 | 2023-04-25 | 深圳前海硬之城信息技术有限公司 | Height-limited PCB three-dimensional drawing generation method, device, equipment and storage medium |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114051374A (en) * | 2021-10-29 | 2022-02-15 | 株洲麦格米特电气有限责任公司 | Avoidance method, avoidance inspection method, package inspection unit and structure inspection tool |
| CN116011398A (en) * | 2023-03-27 | 2023-04-25 | 深圳前海硬之城信息技术有限公司 | Height-limited PCB three-dimensional drawing generation method, device, equipment and storage medium |
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Application publication date: 20200306 |