CN217316627U - Welding jig - Google Patents
Welding jig Download PDFInfo
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- CN217316627U CN217316627U CN202220156432.1U CN202220156432U CN217316627U CN 217316627 U CN217316627 U CN 217316627U CN 202220156432 U CN202220156432 U CN 202220156432U CN 217316627 U CN217316627 U CN 217316627U
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Abstract
The utility model discloses a welding jig for the installation of DBC base plate and heating panel, this welding jig includes: a base having a support location configured to support a heat sink plate; the limiting piece is positioned above the supporting position and is used for pressing the heat dissipation plate positioned on the supporting position, a limiting hole is formed in the limiting piece, the limiting hole penetrates through two opposite side surfaces of the limiting piece, and the limiting hole is configured for being used for mounting the DBC substrate so that the DBC substrate abuts against the heat dissipation plate on the supporting position; and the pressing and fixing part is arranged in the limiting hole so as to press and fix the DBC substrate on the heat dissipation plate. The utility model discloses technical scheme does benefit to and guarantees the appointed position of DBC base plate welding at the heating panel, has guaranteed the welding quality of DBC base plate welding on the heating panel.
Description
Technical Field
The utility model relates to a tool technical field, in particular to welding jig.
Background
DBC substrates are typically required to be soldered onto heat sinks for use. When soldering, it is generally necessary to solder the DBC substrate to a specified position on the heat dissipation plate. Due to the fact that no proper welding jig is arranged, the specified position of the DBC substrate welded on the radiating plate is difficult to guarantee, the DBC substrate is difficult to guarantee not to deviate or tilt in the welding process, and therefore the welding quality of the DBC substrate welded on the radiating plate is difficult to guarantee.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a welding jig aims at ensuring that the DBC base plate can weld at the assigned position of heating panel, guarantees the welding quality of DBC base plate welding on the heating panel.
In order to achieve the above object, the utility model provides a welding jig for the installation of DBC base plate and heating panel, this welding jig includes:
a base having a support location configured to support a heat sink plate;
the limiting piece is positioned above the supporting position and is used for pressing the heat dissipation plate positioned on the supporting position, a limiting hole is formed in the limiting piece, the limiting hole penetrates through two opposite side surfaces of the limiting piece, and the limiting hole is configured for being used for mounting the DBC substrate so that the DBC substrate abuts against the heat dissipation plate on the supporting position;
and the pressing and fixing piece is arranged in the limiting hole so as to press and fix the DBC substrate on the heat dissipation plate.
Optionally, the pressing and fixing part comprises a pressing part and a counterweight part, the pressing part is made of titanium alloy, the counterweight part is made of stainless steel, the pressing part is configured to press the DBC substrate on the limiting hole, and the counterweight part is installed above the pressing part;
and/or the weight of the pressing piece is set to be 5g-20 g.
Optionally, the pressing part and the counterweight part are detachably connected.
Optionally, the pressing portion is provided with a first positioning hole, and the counterweight portion is provided with a second positioning hole corresponding to the first positioning hole, so that the positioning element penetrates through the pressing portion and the positioning portion.
Optionally, the pressing and fixing part comprises a pressing and fixing plate and a pressing and fixing column protruding on the pressing and fixing plate, the pressing and fixing column is protruding on one side of the pressing and fixing plate facing the limiting hole, the pressing and fixing column extends into the limiting hole to press and fix the DBC substrate on the limiting hole, and an avoiding space is formed between the DBC substrate and the pressing and fixing plate.
Optionally, the number of the compression posts is multiple, and the multiple compression posts are convexly arranged at each corner of the compression plate.
Optionally, the limiting part comprises an installation frame and a limiting frame, the installation frame is surrounded and closed to form an installation hole, the limiting frame is detachably installed in the installation hole, and the limiting frame is surrounded and closed to form the limiting hole.
Optionally, the installation frame deviates from the draw-in groove has been seted up to the one side of base, the draw-in groove extends to and link up the mounting hole, the protruding card that is equipped with of periphery wall of spacing frame is protruding, the protruding overlap joint of card in the draw-in groove.
Optionally, a connecting hole is formed in the base, and a through hole is formed in the limiting part corresponding to the connecting hole, so that the connecting column is connected in series with the base and the limiting part.
Optionally, the base has an avoiding hole configured to accommodate a component on the heat dissipation plate.
The technical scheme of the utility model, top through locating the support position of base with the locating part, make the locating part can rely on gravity to press solid heating panel downwards, make the heating panel obtain fixing to a certain extent, then be used for installing the DBC base plate through seting up spacing hole on the locating part, make the DBC base plate obtain fixedly on the horizontal direction, the gravity through relying on the fastener presses solid DBC base plate downwards at last, make the DBC base plate also obtain fixedly in vertical direction, thereby avoided the DBC base plate to take place the skew in welding process, unfavorable phenomena such as perk, ensure that the DBC base plate can weld the assigned position at the heating panel, the welding quality of DBC base plate welding on the heating panel has been guaranteed. In addition, the DBC substrate and the radiating plate are fixed relatively by using the clamp, the situation that the DBC substrate is damaged due to improper control of clamping force can be avoided, and the reliability of the welding jig is improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the prior art descriptions will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.
FIG. 1 is a schematic structural view of the welding jig of the present invention;
FIG. 2 is a schematic view of a cross-sectional structure of the welding jig of the present invention;
fig. 3 is a schematic structural view of a base of the welding jig of the present invention;
fig. 4 is a schematic structural view of a limiting member of the welding jig of the present invention;
fig. 5 is an exploded view of the fastener of the present invention.
The reference numbers indicate:
| reference numerals | Name(s) | Reference numerals | Name (R) |
| 100 | |
101 | Connecting |
| 102 | Avoiding |
200 | |
| 201 | Limiting |
202 | Through |
| 210 | |
211 | |
| 212 | |
220 | Limiting |
| 221 | Clamping |
300 | |
| 301 | |
302 | Space of avoiding |
| 310 | Pressing part | 311 | A |
| 320 | |
321 | |
| 400 | |
401 | Component and |
| 500 | DBC substrate |
The objects, features and advantages of the present invention will be further described with reference to the accompanying drawings.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person skilled in the art without making creative efforts belong to the protection scope of the present invention.
It should be noted that all the directional indicators (such as upper, lower, left, right, front and rear … …) in the embodiment of the present invention are only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indicator is changed accordingly.
In addition, the descriptions related to "first", "second", etc. in the present invention are for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicit ly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, "and/or" in the whole text includes three schemes, taking a and/or B as an example, including a technical scheme, and a technical scheme that a and B meet simultaneously; in addition, the technical solutions in the embodiments may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should not be considered to exist, and is not within the protection scope of the present invention.
The specific structure of the welding jig will be mainly described below.
Referring to fig. 1 to 5, in an embodiment of the present invention, the welding jig is used for mounting a DBC substrate and a heat dissipation plate, and the welding jig includes:
a base 100, the base 100 having a support location configured to support a heat dissipation plate 400;
the limiting member 200 is located above the supporting position to press the heat dissipation plate 400 located on the supporting position, the limiting member 200 is formed with a limiting hole 201, the limiting hole 201 penetrates through two opposite side surfaces of the limiting member 200, and the limiting hole 201 is configured to mount the DBC substrate 500, so that the DBC substrate 500 abuts against the heat dissipation plate 400 on the supporting position;
and a press-fixing member 300 disposed in the stopper hole 201 to press and fix the DBC substrate 500 to the heat dissipation plate 400.
Specifically, in the present embodiment, the overall shape of the base 100 may be various, and may be a square, a circle, an oval, etc. in the present embodiment, the square is taken as an example. The supporting position may be a supporting plane, or may be other supporting structures, such as a supporting boss, etc., and is not particularly limited herein, as long as the supporting structure can support the heat dissipation plate 400. If necessary, a avoiding structure may be further disposed on the base 100 to avoid the component 401 on the heat dissipation plate 400, for example, in some embodiments, the base 100 has a avoiding hole 102, and the avoiding hole 102 is configured to accommodate the component 401 on the heat dissipation plate 400.
Regarding the limiting member 200, the overall shape thereof may correspond to the shape of the base 100, for example, when the base 100 is square, the shape of the limiting member 200 is also square, so as to improve the regularity of the overall structure of the welding jig, reduce the occupied space of the welding jig, and facilitate the use.
When in use, the heat dissipation plate 400 is placed on the supporting position of the base 100, then the limiting member 200 is placed on the heat dissipation plate 400, the limiting member 200 is pressed against the heat dissipation plate 400 downwards by gravity to press and fix the heat dissipation plate 400 to a certain extent, then the soldering assistant sheet can be placed on the limiting hole 201 of the limiting member 200 or the heat dissipation plate 400 is brushed with tin paste through the limiting hole 201, then the DBC substrate 500 is installed on the limiting hole 201, then the pressing member 300 is placed in the limiting hole 201, so that the DBC substrate 500 on the limiting hole 201 is tightly abutted with the heat dissipation plate 400 brushed with the tin paste by the gravity, or the opposite sides of the soldering assistant sheet are respectively tightly abutted with the DBC substrate 500 and the heat dissipation plate 400, finally the welding jig is moved into a reflow oven, after the soldering assistant sheet and the tin paste are melted, the DBC substrate 500 is welded on the heat dissipation plate 400, after the welding is finished, the pressing member 300 and the limiting member 200 are taken out, the heat sink 400 soldered and fixed to the DBC substrate 500 can be taken out. The heat dissipation plate 400 may dissipate heat of the DBC substrate 500, and may also be used to simultaneously support a plurality of DBC substrates 500.
The technical scheme of the utility model, top through locating the support position of base 100 with locating part 200, make locating part 200 can rely on gravity to press solid heating panel 400 downwards, make heating panel 400 obtain fixing to a certain extent, then be used for installing DBC base plate 500 through set up spacing hole 201 on locating part 200, make DBC base plate 500 obtain fixedly on the horizontal direction, DBC base plate 500 is pressed solid DBC base plate 500 downwards through the gravity that relies on fastener 300 at last, make DBC base plate 500 also obtain fixedly in vertical direction, thereby avoided DBC base plate 500 skew to take place in welding process, unfavorable phenomena such as perk, ensure that DBC base plate 500 can weld the assigned position at heating panel 400, the welding quality of DBC base plate 500 welding on heating panel 400 has been guaranteed. In addition, the DBC substrate 500 and the heat dissipation plate 400 are fixed by using the clamp, so that the situation that the DBC substrate 500 is damaged due to improper control of clamping force can be avoided, and the reliability of the welding jig is improved.
In some embodiments, the pressing member 300 includes a pressing portion 310 and a weight portion 320, the pressing portion 310 is made of a titanium alloy, the weight portion 320 is made of stainless steel, the pressing portion 310 is configured to press the DBC substrate 500 disposed on the limiting hole 201, and the weight portion 320 is mounted above the pressing portion 310. It can be understood that, the temperature in the reflow furnace is too high, and the titanium alloy is resistant to high temperature, so that the pressing part 310 of the pressing member 300 can not deform under high temperature condition, so as to ensure the working performance of the pressing member 300; the weight of the stainless steel is relatively heavy, so that the weight of the press-fixing member 300 can be increased as a whole, and the press-fixing effect of the press-fixing member 300 can be ensured. Further, the pressing portion 310 and the weight portion 320 are detachably connected. The detachable connection mode can be various, such as screw connection, clamping connection, insertion connection and the like. The pressing part 310 and the counterweight part 320 are detachably connected, so that the pressing part 310 and the counterweight part 320 can be replaced independently, when the pressing part 310 or the counterweight part 320 is not applicable, the pressing part 310 or the counterweight part 320 can be replaced independently without being replaced completely, the cost is saved, the weight of the pressing part 300 can be adjusted by replacing the counterweight part 320, and the applicability of the pressing part 300 is improved.
Regarding the weight of the press-fixing member 300, in some embodiments, the weight of the press-fixing member 300 is set to 5g to 20 g. For example, 5g, 8g, 10g, 15g, etc. may be selected. The weight of the press-fixing member 300 should not be too heavy, so that the DBC substrate 500 is easily crushed by the too heavy weight, and should not be too light, so that the press-fixing effect on the DBC substrate 500 cannot be ensured by the too light weight, and the press-fixing member is selected according to actual requirements in actual application.
In some embodiments, the pressing portion 310 is provided with a first positioning hole 311, and the weight portion 320 is provided with a second positioning hole 321 corresponding to the first positioning hole 311, so that a positioning element can penetrate through the pressing portion 310 and the positioning portion. The positioning member can be used to position the counterweight portion 320 and the pressing portion 310, and also can limit the position of the counterweight portion 320 relative to the pressing portion 310, so as to improve the reliability of the structure of the pressing member 300.
In some embodiments, the pressing member 300 includes a pressing plate and a pressing post 301 protruding from the pressing plate, the pressing post 301 is protruding from a side of the pressing plate facing the limiting hole 201, and the pressing post 301 extends into the limiting hole 201 to press the DBC substrate 500 on the limiting hole 201, so as to form a space 302 between the DBC substrate 500 and the pressing plate. Therefore, the avoiding space 302 can be used for accommodating the component 401 on the DBC substrate 500, so as to prevent the component 401 on the DBC substrate 500 from being damaged by the pressing member 300, and prevent the component 401 on the DBC substrate 500 from affecting the pressing effect of the pressing member 300.
Further, the number of the compression columns 301 is multiple, and the compression columns 301 are convexly arranged at the corners of the compression plate. So, crimping post 301 can avoid the components and parts 401 in the middle of DBC base plate 500 for press fitting member 300's the even effect of pressure can be on DBC base plate 500, can effectually prevent DBC base plate 500 perk, in order to guarantee that the smooth welding of DBC base plate 500 is on heating panel 400, improves welding quality.
For example, in some embodiments, the limiting member 200 includes a mounting frame 210 and a limiting frame 220, the mounting frame 210 encloses and forms a mounting hole 211, the limiting frame 220 is detachably mounted to the mounting hole 211, and the limiting frame 220 encloses and forms the limiting hole 201. It can be understood that, during the operation of the limiting hole 201, the hole wall of the limiting hole 201 is difficult to avoid abutting against or colliding with the DBC substrate 500, so that the hole wall of the limiting hole 201 is easily worn to affect the function of the limiting hole 201, and moreover, the limiting member 200 is usually provided with a plurality of limiting holes 201 for the installation of a plurality of DBC substrates 500. The limiting part 200 of this embodiment is arranged in such a way, so that the limiting hole 201 can be replaced by replacing the limiting frame 220, so as to ensure the normal operation of the limiting part 200, avoid the need of discarding the whole limiting part 200 after the hole wall 201 of the limiting hole is worn, and be beneficial to saving the manufacturing cost of the welding jig. In addition, different limiting holes 201 can be replaced by replacing different limiting frames 220, so that the DBC substrate 500 is suitable for different DBC substrates, and the applicability of the welding jig is improved.
The limit frame 220 can be detachably mounted on the mounting frame 210 in a plurality of ways, and as an example, in some embodiments, a clamping groove 212 is formed in one surface of the mounting frame 210 away from the base 100, the clamping groove 212 extends to penetrate through the mounting hole 211, a protruding block 221 is arranged on the outer peripheral wall of the limit frame 220, and the protruding block 221 is connected to the clamping groove 212 in an overlapping manner. During installation, the clamping protrusion 221 of the limiting frame 220 is aligned with the clamping groove 212 of the installation frame 210, and the clamping protrusion 221 is lapped on the clamping groove 212, so that the limiting frame 220 is installed on the installation frame 210; during the dismantlement, direct with spacing frame 220 take up can, the dismouting mode is simple, is favorable to improving welding jig's work efficiency.
In order to further fix the heat dissipation plate 400, in some embodiments, a connection hole 101 is formed on the base 100, and a through hole 202 is formed in the limiting member 200 corresponding to the connection hole 101, so that a connection column is connected in series with the base 100 and the limiting member 200. During actual design, the number of the connecting holes 101 and the number of the through holes 202 are plural, and the number of the connecting columns is also plural correspondingly, so that the movement and the rotation of the limiting member 200 relative to the base 100 are limited, the limiting member 200 can stably press the heat dissipation plate 400 on the base 100, and the fixing effect of the welding jig on the heat dissipation plate 400 is improved. It should be noted that the connection hole 101 on the base 100 and the through hole 202 on the limiting member 200 may be disposed to avoid the heat dissipation plate 400; also can set up the via hole on heating panel 400, during the installation, the spliced pole concatenates base 100, heating panel 400 and locating part 200 in proper order, so, still can further fixed heating panel 400 to finally improve heating panel 400's welding quality.
The above only be the preferred embodiment of the utility model discloses a not consequently restriction the utility model discloses a patent range, all are in the utility model discloses a conceive, utilize the equivalent structure transform of what the content was done in the description and the attached drawing, or direct/indirect application all is included in other relevant technical field the utility model discloses a patent protection within range.
Claims (10)
1. A welding jig, characterized by, is used for the installation of DBC base plate and heating panel, and this welding jig includes:
a base having a support location configured to support a heat sink plate;
the limiting piece is positioned above the supporting position and is used for pressing the heat dissipation plate positioned on the supporting position, a limiting hole is formed in the limiting piece, the limiting hole penetrates through two opposite side surfaces of the limiting piece, and the limiting hole is configured for being used for mounting the DBC substrate so that the DBC substrate abuts against the heat dissipation plate on the supporting position;
and the pressing and fixing piece is arranged in the limiting hole so as to press and fix the DBC substrate on the heat dissipation plate.
2. The welding jig of claim 1, wherein the pressing part comprises a pressing part and a counterweight part, the pressing part is made of titanium alloy, the counterweight part is made of stainless steel, the pressing part is configured to press the DBC substrate on the limiting hole, and the counterweight part is mounted above the pressing part;
and/or the weight of the pressing piece is set to be 5g-20 g.
3. The welding jig of claim 2, wherein the pressing portion and the weight portion are detachably connected.
4. The welding jig of claim 3, wherein the pressing portion is provided with a first positioning hole, and the counterweight portion is provided with a second positioning hole corresponding to the first positioning hole, so that a positioning element can penetrate through the pressing portion and the positioning portion.
5. The welding jig of claim 1, wherein the press-fixing member comprises a press-fixing plate and a press-connecting post protruding from the press-fixing plate, the press-connecting post protruding from one side of the press-fixing plate facing the limiting hole, the press-connecting post extending into the limiting hole to press-connect the DBC substrate on the limiting hole, so as to form a space between the DBC substrate and the press-fixing plate.
6. The welding jig of claim 5, wherein the number of the crimping posts is plural, and the plurality of the crimping posts are convexly arranged at each corner of the press-fixing plate.
7. The welding jig of claim 1, wherein the limiting member comprises a mounting frame and a limiting frame, the mounting frame encloses to form a mounting hole, the limiting frame is detachably mounted to the mounting hole, and the limiting frame encloses to form the limiting hole.
8. The welding jig of claim 7, wherein a clamping groove is formed in a surface of the mounting frame facing away from the base, the clamping groove extends to penetrate through the mounting hole, and a clamping protrusion is convexly arranged on the outer peripheral wall of the limiting frame and is connected to the clamping groove in a lap joint mode.
9. The welding fixture according to claim 1, wherein the base has a connection hole, and the position-limiting member has a through hole corresponding to the connection hole, so that the connection post is connected in series with the base and the position-limiting member.
10. The welding jig of claim 1, wherein the base has an escape hole configured to receive a component on the heat sink.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220156432.1U CN217316627U (en) | 2022-01-20 | 2022-01-20 | Welding jig |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220156432.1U CN217316627U (en) | 2022-01-20 | 2022-01-20 | Welding jig |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217316627U true CN217316627U (en) | 2022-08-30 |
Family
ID=82993334
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220156432.1U Active CN217316627U (en) | 2022-01-20 | 2022-01-20 | Welding jig |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217316627U (en) |
-
2022
- 2022-01-20 CN CN202220156432.1U patent/CN217316627U/en active Active
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| GR01 | Patent grant |