CN220402209U - Radiating fin and circuit board assembly - Google Patents
Radiating fin and circuit board assembly Download PDFInfo
- Publication number
- CN220402209U CN220402209U CN202321693957.XU CN202321693957U CN220402209U CN 220402209 U CN220402209 U CN 220402209U CN 202321693957 U CN202321693957 U CN 202321693957U CN 220402209 U CN220402209 U CN 220402209U
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- China
- Prior art keywords
- plate
- fixing plate
- circuit board
- leg
- fixing
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Links
- 238000003466 welding Methods 0.000 claims abstract description 18
- 230000017525 heat dissipation Effects 0.000 claims description 20
- 238000005476 soldering Methods 0.000 claims description 12
- 229910000679 solder Inorganic materials 0.000 claims description 4
- 238000009434 installation Methods 0.000 abstract description 7
- 238000005452 bending Methods 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 3
- 229910052802 copper Inorganic materials 0.000 description 3
- 239000010949 copper Substances 0.000 description 3
- 238000001816 cooling Methods 0.000 description 2
- KUNSUQLRTQLHQQ-UHFFFAOYSA-N copper tin Chemical compound [Cu].[Sn] KUNSUQLRTQLHQQ-UHFFFAOYSA-N 0.000 description 2
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 238000004080 punching Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008094 contradictory effect Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
Landscapes
- Cooling Or The Like Of Electrical Apparatus (AREA)
Abstract
The utility model discloses a radiating fin and circuit board assembly, wherein the radiating fin comprises a first fixed plate, a second fixed plate and a top plate, welding pins are fixed on the inner side part of the first fixed plate, the second fixed plate is provided with a first mounting hole, the second fixed plate is fixedly provided with the welding pins, the top plate is connected with the first fixed plate and the second fixed plate, and the first fixed plate, the second fixed plate and the top plate are surrounded to form an II shape. According to the technical scheme, the first fixing plate, the top plate and the second fixing plate are arranged, the second fixing plate is provided with the first mounting hole, and the electronic component can be mounted on the second fixing plate. Because the connecting plate of roof is connected first fixed plate and second fixed plate, roof and first fixed plate can support the second fixed plate and spacing to the second fixed plate to reduce the condition of bending of the leg on the second fixed plate and take place, and then ensure that the leg on the second fixed plate is connected stably with the circuit board, whole fin also can install on the circuit board firmly, has improved the installation stability of fin.
Description
Technical Field
The utility model relates to the technical field of heat dissipation, in particular to a heat dissipation sheet and a circuit board assembly.
Background
In recent years, the power supply module is often applied to the fields of electric vehicles and the like, and has a wide application prospect. The power module is generally equipped with a circuit board for controlling the power module to ensure the normal operation of the power module. The PCB board is usually provided with a plurality of electronic components, and the heat emitted during operation of the plurality of electronic components affects the normal operation and safety of the power module. Therefore, the heat dissipation plate is installed on the circuit board, and the heat dissipation plate can dissipate heat of the electronic component and the power module body on the circuit board.
However, most of the existing radiating fins are of thin plate structures, after the radiating fins are mounted on the circuit board, if other modules or electronic elements are attached to the radiating fins to increase heat dissipation, the welding legs of the radiating fins are easily bent due to poor bearing capacity, the bent welding legs are slowly broken, and therefore the radiating fins cannot be stably mounted on the circuit board, and the mounting stability of the radiating fins is reduced.
Disclosure of Invention
The utility model aims to provide a radiating fin, which aims to solve the problems that most of the existing radiating fins have a thin plate structure, and if other modules or electronic elements are attached to the radiating fin, the welding pins of the radiating fin are easily bent due to poor bearing capacity, so that the installation stability of the radiating fin is reduced.
In order to achieve the above object, the present utility model provides a heat sink, comprising:
the inner side part of the first fixing plate is fixed with welding pins;
the second fixing plate is provided with a plurality of first mounting holes which are arranged at intervals, and welding pins are fixed at the inner side part of the second fixing plate; and
the top plate is connected with the first fixing plate and the second fixing plate, the top plate comprises a connecting plate and an extending plate, the connecting plate is fixedly connected with the extending plate and surrounds to form a positioning notch, the connecting plate is connected with the two fixing plates, the extending plate extends along the length direction of the second fixing plate and is connected with the second fixing plate, and the extending plate is provided with a second mounting hole;
the first fixed plate, the second fixed plate and the top plate are surrounded to form an II shape.
Optionally, the first fixed plate, the second fixed plate and the top plate enclose to form a spacing cavity, the connecting plate is provided with a through hole for heat dissipation, and the through hole is communicated with the spacing cavity.
Optionally, the first fixing plate and the second fixing plate are respectively arranged at two sides of the connecting plate, and the length of the second fixing plate is greater than that of the first fixing plate.
Optionally, the bottom protrusion of first fixed plate is provided with two locating legs, at least one the locating leg is fixed with the leg, two the locating leg homoenergetic with the circuit board butt, two have first heat dissipation breach between the locating leg.
Optionally, a side of the connecting plate, which is close to the first fixing plate, is provided with an avoidance notch.
Optionally, the first fixing plate is provided with an anti-blocking notch, and the anti-blocking notch is communicated with the avoidance notch.
Optionally, the bottom protrusion of second fixed plate is provided with three card foot, and adjacent two be equipped with the second heat dissipation breach between the card foot.
Optionally, the card foot includes first card foot, second card foot and third card foot, the second card foot is located between first card foot and the third card foot, first card foot with the third card foot all is fixed with the welding foot.
The utility model also provides a circuit board assembly, which comprises a circuit board and radiating fins, wherein the radiating fins are arranged on the circuit board, the circuit board is provided with jacks, the welding pins are inserted into the jacks, and the bottoms of the two fixing plates are abutted against the circuit board.
According to the technical scheme, the first fixing plate, the top plate and the second fixing plate are arranged, the second fixing plate is provided with the first mounting hole, and the electronic component can be mounted on the second fixing plate. Because the connecting plate of roof is connected first fixed plate and second fixed plate, roof and first fixed plate can support the second fixed plate and spacing to the second fixed plate to reduce the condition of bending of the leg on the second fixed plate and take place, and then ensure that the leg on the second fixed plate is connected stably with the circuit board, whole fin also can install on the circuit board firmly, has improved the installation stability of fin.
Drawings
In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, and it is obvious that the drawings in the following description are only some embodiments of the present utility model, and other drawings may be obtained according to the structures shown in these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of a heat sink according to an embodiment of the present utility model;
FIG. 2 is a schematic diagram of an embodiment of an inventive circuit board assembly;
fig. 3 is an exploded view of an embodiment of a circuit board assembly according to the present utility model.
Reference numerals illustrate:
| reference numerals | Name of the name | Reference numerals | Name of the name |
| 10 | Heat sink | 13 | Spacing chamber |
| 11 | First fixing plate | 14 | Top plate |
| 110 | Welding leg | 140 | Connecting plate |
| 111 | Positioning foot | 141 | Through hole |
| 112 | First heat dissipation notch | 142 | Avoidance gap |
| 113 | Anti-seize notch | 143 | Extension board |
| 12 | Second fixing plate | 144 | Positioning notch |
| 120 | First mounting hole | 145 | Second mounting hole |
| 121 | Clamping foot | 100 | Circuit board assembly |
| 122 | First clamping leg | 20 | Circuit board |
| 123 | Second clamping leg | 21 | Jack (Jack) |
| 124 | Third clamping leg | 30 | Electronic component |
| 125 | Second heat dissipation notch | 31 | Perforation |
The achievement of the objects, functional features and advantages of the present utility model will be further described with reference to the accompanying drawings, in conjunction with the embodiments.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
It should be noted that all directional indicators (such as up, down, left, right, front, and rear … …) in the embodiments of the present utility model are merely used to explain the relative positional relationship, movement, etc. between the components in a particular posture (as shown in the drawings), and if the particular posture is changed, the directional indicator is changed accordingly.
In the present utility model, unless specifically stated and limited otherwise, the terms "connected," "affixed," and the like are to be construed broadly, and for example, "affixed" may be a fixed connection, a removable connection, or an integral body; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.
Furthermore, descriptions such as those referred to as "first," "second," and the like, are provided for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implying an order of magnitude of the indicated technical features in the present disclosure. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In addition, the meaning of "and/or" as it appears throughout is meant to include three side-by-side schemes, for example, "a and/or B", including a scheme, or B scheme, or a scheme that is satisfied by both a and B. In addition, the technical solutions of the embodiments may be combined with each other, but it is necessary to base that the technical solutions can be realized by those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be considered to be absent and not within the scope of protection claimed in the present utility model.
The present utility model proposes a heat sink 10. Referring to fig. 1 to 3, fig. 1 is a schematic structural diagram of an embodiment of a heat sink 10 according to the present utility model; FIG. 2 is a schematic diagram of an embodiment of an inventive circuit board assembly 100; fig. 3 is an exploded view of an embodiment of a circuit board assembly 100 according to the present utility model.
In an embodiment of the present utility model, as shown in fig. 1 to 3, the present utility model proposes a heat sink 10, comprising:
a first fixing plate 11, wherein a welding leg 110 is fixed at the inner side of the first fixing plate 11;
a second fixing plate 12, wherein the second fixing plate 12 is provided with a plurality of first mounting holes 120 which are arranged at intervals, and welding pins 110 are fixed at the inner side part of the second fixing plate 12; and
a top plate 14, wherein the top plate 14 connects the first fixing plate 11 and the second fixing plate 12, the top plate 14 comprises a connecting plate 140 and an extending plate 143, the connecting plate 140 is fixedly connected with the extending plate 143 and encloses to form a positioning notch 144, the connecting plate 140 connects the two fixing plates, the extending plate 143 extends along the length direction of the second fixing plate 12 and is connected with the second fixing plate 12, and the extending plate 143 is provided with a second mounting hole 145;
the first fixing plate 11, the second fixing plate 12 and the top plate 14 are surrounded to form a pi shape.
According to the technical scheme of the utility model, the first fixing plate 11, the top plate 14 and the second fixing plate 12 are arranged, the second fixing plate 12 is provided with the first mounting holes 120, and the electronic component 30 can be mounted on the second fixing plate 12. Because the connecting plate 140 of the top plate 14 connects the first fixing plate 11 and the second fixing plate 12, the top plate 14 and the first fixing plate 11 can support the second fixing plate 12 and limit the second fixing plate 12, so as to reduce the occurrence of bending of the soldering feet 110 on the second fixing plate 12, further ensure that the soldering feet 110 on the second fixing plate 12 are stably connected with the circuit board 20, and the whole heat sink 10 can be stably mounted on the circuit board 20, thereby improving the mounting stability of the heat sink 10.
In one embodiment, the first fixing plate 11 is fixed with one tin-copper plated soldering leg 110, and the second fixing plate 12 is fixed with two tin-copper plated soldering legs 110. In order to fix the solder fillets 110, two vertically distributed rivet posts are formed by punching the first fixing plate 11 inwards, and a tin-plated copper solder fillets 110 are fixed on the two rivet posts in a riveting manner. Similarly, four riveting columns formed by punching on the inner side of the second fixing plate 12 are fixedly riveted with a tin-plated copper soldering leg 110 on every two vertically distributed riveting columns, and two tin-plated copper soldering legs 110 are fixedly arranged on the second fixing plate 12. And two of the four rivet posts are spaced apart from the other two rivet posts so as to space apart the two fillets 110.
As shown in fig. 1 to 3, the first fixing plate 11, the second fixing plate 12 and the top plate 14 enclose a limiting cavity 13, and the connecting plate 140 is provided with a through hole 141 for heat dissipation, and the through hole is communicated with the limiting cavity 13.
In one embodiment, the heat sink 10 is mounted to the circuit board 20. The first fixing plate 11, the second fixing plate 12 and the top plate 14 enclose a limiting cavity 13, so as to accommodate the electronic component 30 on the circuit board 20, such as accommodating a main controller on the circuit board 20. The master controller is existing, and the present utility model is not limited to the master controller on the circuit board 20.
Alternatively, the first fixing plate 11 and the second fixing plate 12 are respectively disposed at two sides of the connection plate 140, and the length of the second fixing plate 12 is greater than that of the first fixing plate 11.
In one embodiment, the second fixing plate 12 has a length greater than that of the first fixing plate 11 for easy installation of the electronic component 30. The first fixing plate 11 and the second fixing plate 12 are respectively arranged at two sides of the connecting plate 140, the second fixing plate 12 can be limited by the connecting plate 140 and the first fixing plate 11, and the second fixing plate 12 is not easy to incline and bend; the first fixing plate 11 may also be limited by the connecting plate 140 and the second fixing plate 12, where the first fixing plate 11 is not easy to incline or bend, so as to ensure the installation stability of the heat sink 10.
As shown in fig. 1 to 3, two positioning pins 111 are protruding from the bottom of the first fixing plate 11, at least one positioning pin 111 is fixed with a soldering pin 110, both positioning pins 111 can be abutted to the circuit board 20, and a first heat dissipation gap 112 is provided between the two positioning pins 111.
In one embodiment, the circuit board 20 is provided with positioning holes, and the positioning pins 111 of the first fixing board 11 can be inserted into the positioning holes on the circuit board 20, so as to mount the first fixing board 11 to the circuit board 20. In order to facilitate heat dissipation for the circuit board 20, a first heat dissipation notch 112 is disposed between the two positioning pins 111.
As shown in fig. 1 to 3, a side of the connecting plate 140, which is close to the first fixing plate 11, is provided with a avoidance notch 142.
In one embodiment, the connection plate 140 is further provided with a relief notch 142 to reduce the electronic component 30 scraped by the connection plate 140 onto the circuit board 20.
Optionally, the first fixing plate 11 is provided with an anti-blocking notch 113, and the anti-blocking notch 113 is communicated with the avoiding notch 142.
In one embodiment, the first fixing plate 11 is provided with an anti-blocking notch 113 to reduce the occurrence of the electronic component 30 on the circuit board 20 being blocked to the first fixing plate 11.
As shown in fig. 1 to 3, three clamping legs 121 are convexly arranged at the bottom of the second fixing plate 12, and a second heat dissipation gap 125 is arranged between two adjacent clamping legs 121.
In one embodiment, the circuit board 20 is provided with positioning holes, and in order to mount the second fixing board 12 on the circuit board 20, the clamping pins 121 of the second fixing board 12 can be inserted into the positioning holes on the circuit board 20 so as to mount the second fixing board 12 on the circuit board 20. In order to facilitate heat dissipation for the circuit board 20, a second heat dissipation notch 125 is disposed between the two positioning pins 111.
Optionally, the clamping leg 121 includes a first clamping leg 122, a second clamping leg 123 and a third clamping leg 124, the second clamping leg 123 is disposed between the first clamping leg 122 and the third clamping leg 124, and the first clamping leg 122 and the third clamping leg 124 are both fixed with the soldering leg 110.
In an embodiment, the first pin 122, the second pin 123 and the third pin 124 are respectively mounted to positioning holes on the circuit board 20. The first clamping leg 122 and the third clamping leg 124 are respectively fixed with a soldering leg 110, and the soldering legs 110 can be plugged into the jack 21 of the circuit board 20.
As shown in fig. 1 and fig. 2, the present utility model further provides a circuit board assembly 100, which includes a circuit board 20 and a heat sink 10, and the specific structure of the heat sink 10 refers to the above embodiment, and since the circuit board assembly 100 adopts all the technical solutions of all the embodiments, at least has all the beneficial effects brought by the technical solutions of the embodiments, and will not be described in detail herein. The heat sink 10 is mounted on the circuit board 20, the circuit board 20 is provided with an insertion hole 21, the soldering leg 110 is inserted into the insertion hole 21, and bottoms of the two fixing boards are abutted to the circuit board 20.
The circuit board assembly 100 further includes a plurality of electronic components 30, wherein one or more of the electronic components 30 are mounted to an outer side portion of the second fixing plate 12.
In one embodiment, the electronic components 30 may include a master, sensors, cooling fins, and the like. Wherein the wiping sensor may be mounted to the second fixing plate 12. Specifically, the sensor is provided with a through hole 31, and the circuit board assembly 100 further includes a fastener penetrating the through hole 31 and the first mounting hole 120 of the second fixing plate 12 to mount the sensor to the second fixing plate 12. Since the connecting plate 140 connects the first fixing plate 11 and the second fixing plate 12, the second fixing plate 12 is fixed by the connecting plate 140 and the first fixing plate 11, and the second fixing plate 12 is not easy to incline or bend. According to the utility model, the top plate 14 and the first fixing plate 11 are arranged to limit the second fixing plate 12, so that the situation that the welding legs 110 on the second fixing plate 12 are bent is reduced, the connection stability of the welding legs 110 on the second fixing plate 12 and the circuit board 20 is ensured, the whole radiating fin 10 can be stably installed on the circuit board 20, and the installation stability of the radiating fin 10 is improved. The electronic components 30 are all existing, and the main controller, the sensor and the refrigerating sheet are all existing.
Also, the first fixing plate 11 may be attached with other electronic components 30 such as a cooling sheet. Since the connecting plate 140 connects the first fixing plate 11 and the second fixing plate 12, the first fixing plate 11 is fixed by the connecting plate 140 and the second fixing plate 12, and the first fixing plate 11 is not easy to incline or bend. And then reduce the condition that the welding leg 110 on the second fixed plate 12 is bent, ensured that the welding leg 110 on the first fixed plate 11 is connected stably with the circuit board 20, the whole radiating fin 10 can also be firmly installed on the circuit board 20, and the installation stability of the radiating fin 10 is improved.
The foregoing description is only of the preferred embodiments of the present utility model and is not intended to limit the scope of the utility model, and all equivalent structural changes made by the description of the present utility model and the accompanying drawings or direct/indirect application in other related technical fields are included in the scope of the utility model.
Claims (9)
1. A heat sink, comprising:
the inner side part of the first fixing plate is fixed with welding pins;
the second fixing plate is provided with a plurality of first mounting holes which are arranged at intervals, and welding pins are fixed at the inner side part of the second fixing plate; and
the top plate is connected with the first fixing plate and the second fixing plate, the top plate comprises a connecting plate and an extending plate, the connecting plate is fixedly connected with the extending plate and surrounds to form a positioning notch, the connecting plate is connected with the two fixing plates, the extending plate extends along the length direction of the second fixing plate and is connected with the second fixing plate, and the extending plate is provided with a second mounting hole;
the first fixed plate, the second fixed plate and the top plate are surrounded to form an II shape.
2. The fin according to claim 1, wherein the first fixing plate, the second fixing plate and the top plate enclose a limiting cavity, the connecting plate is provided with a through hole for heat dissipation, and the through hole is communicated with the limiting cavity.
3. The fin according to claim 2, wherein the first fixing plate and the second fixing plate are provided on both sides of the connection plate, respectively, and the length of the second fixing plate is greater than the length of the first fixing plate.
4. The heat sink of claim 1, wherein two positioning pins are protruded from the bottom of the first fixing plate, at least one of the positioning pins is fixed with a soldering pin, both the positioning pins can be abutted against the circuit board, and a first heat dissipation gap is formed between the two positioning pins.
5. The fin as recited in claim 4, wherein a side of said connection plate adjacent to said first fixing plate is provided with a relief notch.
6. The fin as recited in claim 5 wherein said first plate has an anti-seize notch, said anti-seize notch communicating with said relief notch.
7. The fin as claimed in claim 1, wherein the bottom of the second fixing plate is provided with three protruding clamping legs, and a second heat dissipation gap is provided between two adjacent clamping legs.
8. The heat sink of claim 7 wherein the legs include a first leg, a second leg, and a third leg, the second leg being disposed between the first leg and the third leg, the first leg and the third leg each being secured with a solder leg.
9. A circuit board assembly, comprising a circuit board and a heat sink according to any one of claims 1 to 8, wherein the heat sink is mounted on the circuit board, the circuit board is provided with a jack, the solder feet are inserted into the jack, and bottoms of the two fixing plates are abutted against the circuit board.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321693957.XU CN220402209U (en) | 2023-06-29 | 2023-06-29 | Radiating fin and circuit board assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321693957.XU CN220402209U (en) | 2023-06-29 | 2023-06-29 | Radiating fin and circuit board assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220402209U true CN220402209U (en) | 2024-01-26 |
Family
ID=89613729
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321693957.XU Active CN220402209U (en) | 2023-06-29 | 2023-06-29 | Radiating fin and circuit board assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220402209U (en) |
-
2023
- 2023-06-29 CN CN202321693957.XU patent/CN220402209U/en active Active
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |