CN115815724A - Welding method for special-shaped heat dissipation metal part of automobile condenser - Google Patents
Welding method for special-shaped heat dissipation metal part of automobile condenser Download PDFInfo
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- CN115815724A CN115815724A CN202211535001.7A CN202211535001A CN115815724A CN 115815724 A CN115815724 A CN 115815724A CN 202211535001 A CN202211535001 A CN 202211535001A CN 115815724 A CN115815724 A CN 115815724A
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- heat dissipation
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- shaped heat
- dissipation metal
- welding
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Abstract
The invention discloses a welding method of a special-shaped heat dissipation metal part of an automobile condenser, which comprises the following steps: s1: designing a yoke plate of the special-shaped heat dissipation metal part; s2: pretreating the shape and the soldering tin amount of the special-shaped heat dissipation metal piece steel mesh; s3: printing solder paste; s4: pasting a special-shaped heat dissipation metal piece; s5: through hole reflow process welding; s6: and detecting by adopting X-ray after welding. According to the invention, after the solder paste is printed on the PCB, the component with metal heat dissipation adopts a special steel mesh design in the process of welding the pins and the PCB, so that the soldering tin amount required by soldering tin is met; the through hole welding technology is adopted in the welding process, so that the in-hole soldering tin filling is facilitated, the problem of hole filling void ratio of the heat dissipation metal device is solved, and the high heat dissipation requirement of an automobile condensing fan product is finally met.
Description
Technical Field
The invention relates to the technical field of welding and heat dissipation of automobile condenser fans, in particular to a method for welding a special-shaped heat dissipation metal piece of an automobile condenser.
Background
In the current PCBA manufacturing of automobile products, generally, a jig design and wave-soldering parameter design method is adopted for soldering metal heat dissipation devices, and then, drawing test is carried out through X-ray equipment. Although the wave soldering parameter design can reduce the hole cavities of the metal heat dissipation device to a certain extent, the welding cavities are extremely complex problems and relate to a jig design, wave soldering parameters, PCB layout, pad design, solder, heat management and other factors, so that the integration and improvement of the factors in the manufacturing process of the automobile PCBA product are difficult.
The manufacturing process of the product is accurately controlled by adopting the special design of the SMT steel mesh, the through hole reflow soldering technology, the high-precision automatic mounting technology and the balanced heat management process, the problem of holes in the heat dissipation metal device can be well solved, and the high heat dissipation requirement of an automobile product on a condensing fan is met.
Disclosure of Invention
The invention aims to provide a welding method of a special-shaped heat dissipation metal part of an automobile condenser, which aims to solve the problems in the prior art.
In order to achieve the purpose, the invention provides the following technical scheme: a welding method of a special-shaped heat dissipation metal piece of an automobile condenser comprises the following steps:
s1: designing a yoke plate of the special-shaped heat dissipation metal part;
s2: pretreating the shape and the soldering tin amount of the special-shaped heat dissipation metal piece steel mesh;
s3: printing solder paste;
s4: pasting a special-shaped heat dissipation metal piece;
s5: through hole reflow process welding;
s6: and detecting by adopting X-ray after welding.
Preferably, the printing of the solder paste in S3 is to print the solder paste on the PCB.
Preferably, the step S4 of mounting the special-shaped heat dissipation metal part is to mount the special-shaped heat dissipation metal part on the PCB.
Preferably, the mounting special-shaped heat dissipation metal part is accurately mounted on the PCB through an automatic mounting technology.
Preferably, the through hole reflow soldering process in S5 is to mount the special-shaped heat dissipation metal piece on the PCB and then solder the special-shaped heat dissipation metal piece by using the through hole reflow soldering process.
Preferably, the step S5 of through hole reflow soldering is to solder the PCB board to which the heat dissipation device is attached in a reflow oven, so as to form an alloy layer between the pad and the heat dissipation device and between the pad and the PCB.
Compared with the prior art, the invention has the beneficial effects that: after the PCB is printed with solder paste, the component with metal heat dissipation adopts a special steel mesh design in the process of welding pins and the PCB, so that the soldering tin amount required by soldering tin is met; the through hole welding technology is adopted in the welding process, so that the in-hole soldering tin filling is facilitated, the problem of the hole filling void ratio of the heat dissipation metal device is solved, and the high heat dissipation requirement of an automobile condensing fan product is finally met.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:
FIG. 1 is a flow chart of a first embodiment of the present invention;
FIG. 2 is a flowchart of a second embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings of the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention. Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.
Example one
Referring to fig. 1, in an embodiment of the present invention, a method for welding a special-shaped heat dissipation metal part of an automotive condenser includes the following steps:
s1: designing a yoke plate of the special-shaped heat dissipation metal piece;
s2: pretreating the shape and the soldering tin amount of the special-shaped heat dissipation metal piece steel mesh;
s3: printing solder paste;
s4: pasting a special-shaped heat dissipation metal piece;
s5: through hole reflow process welding;
s6: and the X-ray detection is adopted after welding, so that the high heat dissipation requirement of the automobile condenser product is met.
Preferably, the printing of the solder paste in S3 is to print the solder paste on the PCB, so as to avoid the simultaneous production of multiple heat dissipation devices.
Preferably, the step S4 of mounting the special-shaped heat dissipation metal part is to mount the special-shaped heat dissipation metal part on the PCB.
Preferably, the mounting special-shaped heat dissipation metal part is accurately mounted on the PCB through an automatic mounting technology.
Preferably, the through hole reflow soldering process in S5 is to mount the special-shaped heat dissipation metal piece on the PCB and then solder the special-shaped heat dissipation metal piece by using the through hole reflow soldering process.
Preferably, the step S5 of through hole reflow soldering is to solder the PCB board to which the heat dissipation device is attached in a reflow oven, so as to form an alloy layer between the pad and the heat dissipation device and between the pad and the PCB.
The working principle of the invention is as follows: carrying out yoke plate design on the special-shaped heat dissipation metal part according to the step S1; in the step S2, preprocessing the special-shaped heat dissipation metal piece steel mesh in a special shape and soldering tin amount; in the step S3, the solder paste is printed on the PCB; step 4, mounting the special-shaped heat dissipation metal piece is to mount the special-shaped heat dissipation metal piece on the PCB; the through hole reflow soldering process in the step S5 is to adopt the through hole reflow soldering process to perform perfect soldering after the special-shaped heat dissipation metal piece is attached to the PCB; and S6, detecting by adopting X-ray after welding, thereby realizing the high heat dissipation requirement of the automobile condenser product.
Example two
Referring to fig. 2, in an embodiment of the present invention, a method for welding a special-shaped heat dissipation metal part of an automotive condenser includes the following steps:
s1: designing a yoke plate of the special-shaped heat dissipation metal part;
s2: pretreating the shape and the soldering tin amount of the special-shaped heat dissipation metal piece steel mesh;
s3: printing solder paste;
s4: pasting a special-shaped heat dissipation metal piece;
s5: and (5) through hole reflow process welding.
Preferably, the printing of the solder paste in S3 is to print the solder paste on the PCB, so as to avoid the simultaneous production of multiple heat dissipation devices.
Preferably, the step S4 of mounting the special-shaped heat dissipation metal part is to mount the special-shaped heat dissipation metal part on the PCB.
Preferably, the mounting special-shaped heat dissipation metal part is accurately mounted on the PCB through an automatic mounting technology.
Preferably, the through hole reflow soldering process in S5 is to mount the special-shaped heat dissipation metal piece on the PCB and then solder the special-shaped heat dissipation metal piece by using the through hole reflow soldering process.
Preferably, the step S5 of through hole reflow soldering is to solder the PCB board to which the heat dissipation device is attached in a reflow oven, so as to form an alloy layer between the pad and the heat dissipation device and between the pad and the PCB.
The working principle of the invention is as follows: carrying out yoke plate design on the special-shaped heat dissipation metal part according to the step S1; step S2, preprocessing the special-shaped heat dissipation metal part steel mesh in a special shape and soldering tin amount; in the step S3, the solder paste is printed on the PCB; step 4, mounting the special-shaped heat dissipation metal piece is to mount the special-shaped heat dissipation metal piece on the PCB; and the through hole reflow soldering process in the step S5 is to adopt the through hole reflow soldering process to perform perfect soldering after the special-shaped heat dissipation metal piece is attached to the PCB.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described above, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (6)
1. A welding method of a special-shaped heat dissipation metal part of an automobile condenser is characterized by comprising the following steps: the method comprises the following steps:
s1: designing a yoke plate of the special-shaped heat dissipation metal part;
s2: pretreating the shape and the soldering tin amount of the special-shaped heat dissipation metal piece steel mesh;
s3: printing solder paste;
s4: pasting a special-shaped heat dissipation metal piece;
s5: through hole reflow process welding;
s6: and detecting by adopting X-ray after welding.
2. The welding method of the special-shaped heat dissipation metal piece of the automobile condenser according to claim 1, characterized by comprising the following steps of: and in the step S3, the solder paste is printed on the PCB.
3. The welding method of the special-shaped heat dissipation metal piece of the automobile condenser according to claim 1, characterized by comprising the following steps of: and the step S4 of mounting the special-shaped heat dissipation metal piece is to mount the special-shaped heat dissipation metal piece on the PCB.
4. The welding method of the special-shaped heat dissipation metal piece of the automobile condenser according to claim 3, characterized by comprising the following steps of: the mounting special-shaped heat dissipation metal piece is accurately mounted on the PCB through an automatic mounting technology.
5. The welding method of the special-shaped heat dissipation metal piece of the automobile condenser according to claim 1, characterized by comprising the following steps of: and S5, the through hole reflow soldering process is to mount the special-shaped heat dissipation metal piece on the PCB and then to solder the special-shaped heat dissipation metal piece by adopting the through hole reflow soldering process.
6. The welding method of the special-shaped heat dissipation metal piece of the automobile condenser according to claim 5, characterized by comprising the following steps of: and S5, the through hole reflow process welding is to weld the PCB which is attached with the heat dissipation device in a reflow furnace, and an alloy layer is formed between the welding disc and the heat dissipation device as well as the PCB.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211535001.7A CN115815724A (en) | 2022-12-02 | 2022-12-02 | Welding method for special-shaped heat dissipation metal part of automobile condenser |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211535001.7A CN115815724A (en) | 2022-12-02 | 2022-12-02 | Welding method for special-shaped heat dissipation metal part of automobile condenser |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115815724A true CN115815724A (en) | 2023-03-21 |
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ID=85544801
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211535001.7A Pending CN115815724A (en) | 2022-12-02 | 2022-12-02 | Welding method for special-shaped heat dissipation metal part of automobile condenser |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115815724A (en) |
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2022
- 2022-12-02 CN CN202211535001.7A patent/CN115815724A/en active Pending
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