CN213401183U - Lead frame convenient to change heat dissipation copper sheet - Google Patents
Lead frame convenient to change heat dissipation copper sheet Download PDFInfo
- Publication number
- CN213401183U CN213401183U CN202022610971.1U CN202022610971U CN213401183U CN 213401183 U CN213401183 U CN 213401183U CN 202022610971 U CN202022610971 U CN 202022610971U CN 213401183 U CN213401183 U CN 213401183U
- Authority
- CN
- China
- Prior art keywords
- copper sheet
- heat dissipation
- lead frame
- metal base
- dissipation copper
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 title claims abstract description 67
- 229910052802 copper Inorganic materials 0.000 title claims abstract description 67
- 239000010949 copper Substances 0.000 title claims abstract description 67
- 230000017525 heat dissipation Effects 0.000 title claims abstract description 65
- 239000002184 metal Substances 0.000 claims abstract description 27
- 229910052751 metal Inorganic materials 0.000 claims abstract description 27
- 210000003205 muscle Anatomy 0.000 claims abstract description 9
- 239000004576 sand Substances 0.000 claims abstract description 8
- 238000009434 installation Methods 0.000 claims abstract description 4
- 238000003466 welding Methods 0.000 claims description 4
- 230000000694 effects Effects 0.000 description 4
- 230000003321 amplification Effects 0.000 description 1
- 239000000284 extract Substances 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 238000005476 soldering Methods 0.000 description 1
Images
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- Cooling Or The Like Of Semiconductors Or Solid State Devices (AREA)
Abstract
The utility model discloses a lead frame convenient to change heat dissipation copper sheet, including metal base, heat dissipation copper sheet, the preceding terminal surface of metal base is equipped with the chip groove, the bottom of metal base is equipped with horizontal muscle, the bottom side of horizontal muscle is equipped with first pin, second pin, third pin by right to left in proper order, the rear end face of metal base is equipped with the copper sheet groove that supplies the installation of heat dissipation copper sheet, the right side of metal base is equipped with the fixed part, the right side of copper sheet groove is equipped with the slot that supplies the fixed part to insert, the rear end face of heat dissipation copper sheet is equipped with a plurality of heat dissipation sand grips; through the slip fit of the inserting strip on the fixing part and the slot on the metal base, the heat dissipation copper sheet can be fixed or detached in the copper sheet slot quickly, the difficulty of replacing the heat dissipation copper sheet is reduced, and the heat dissipation function is guaranteed through replacement.
Description
Technical Field
The utility model belongs to the technical field of the electronic component and specifically relates to a lead frame convenient to change heat dissipation copper sheet is related to.
Background
The triode is a basic component of a semiconductor, has a current amplification function and is a core element of an electronic circuit, and comprises a frame, a chip and a shell, wherein the frame is particularly important, and plays a role in heat dissipation in the whole triode.
SUMMERY OF THE UTILITY MODEL
The utility model discloses an it is not enough to overcome above-mentioned condition, aims at providing the technical scheme that can solve above-mentioned problem.
The utility model provides a lead frame convenient to change heat dissipation copper sheet, includes metal base, heat dissipation copper sheet, metal base's preceding terminal surface is equipped with the chip groove, metal base's bottom is equipped with horizontal muscle, the bottom side of horizontal muscle is equipped with first pin, second pin, third pin by right side to a left side in proper order, metal base's rear end face is equipped with the confession the copper sheet groove of heat dissipation copper sheet installation, metal base's right side is equipped with the fixed part, the right side in copper sheet groove is equipped with and supplies fixed part male slot, the rear end face of heat dissipation copper sheet is equipped with a plurality of heat dissipation sand grips.
Preferably, welding parts are arranged on two sides of the top of the transverse rib.
Preferably, the top of the metal base is provided with a connecting hole.
Preferably, circular grooves are formed in four corners of the copper sheet groove.
Preferably, the heat dissipation sand grip is equidistance parallel arrangement, and is equipped with ten at least, the both ends of heat dissipation sand grip all are equipped with the radius angle.
Preferably, the fixing part further comprises an inserting strip, the inserting strip is in sliding fit with the slot, and the cross sections of the inserting strip and the slot are L-shaped.
Preferably, the top end and the bottom end of the heat dissipation copper sheet are both provided with first steps of the void-avoiding inserting strips.
Preferably, the top angle and the bottom angle of the heat dissipation copper sheet on the side far away from the fixing part are provided with second steps.
Preferably, a protruding plate is provided at one side of the fixing member.
The utility model has the advantages that: the utility model discloses novel structure through the slot sliding fit on the cutting on the fixed part and the metal base for the heat dissipation copper sheet is accomplished fixedly or is dismantled at the copper sheet inslot fast, thereby reduces the degree of difficulty of changing the heat dissipation copper sheet, guarantees the heat dissipation function through changing, adds at the rear end face of heat dissipation copper sheet simultaneously and establishes a plurality of heat dissipation sand grips, and the area of contact of increase and air improves the radiating effect.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art 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 these drawings without inventive exercise.
Fig. 1 is a schematic structural view of a lead frame for conveniently replacing a heat dissipation copper sheet according to the present invention;
fig. 2 is a schematic structural view of a lead frame for conveniently replacing a heat dissipation copper sheet according to the present invention;
fig. 3 is an exploded schematic view of a lead frame for conveniently replacing a heat dissipation copper sheet according to the present invention;
fig. 4 is a partial enlarged view of the lead frame convenient for replacing the heat dissipation copper sheet in the present invention.
Shown in the figure: 1. metal base, 2, heat dissipation copper sheet, 3, chip groove, 4, copper sheet groove, 5, horizontal muscle, 6, first pin, 7, second pin, 8, third pin, 9, welding part, 10, fixed part, 11, cutting, 12, slot, 13, circular slot, 14, heat dissipation sand grip, 15, first step, 16, second step, 17, flange, 18, connecting hole.
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 in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Please refer to fig. 1-4, in the embodiment of the present invention, a lead frame convenient for replacing a heat dissipation copper sheet, includes metal base 1, heat dissipation copper sheet 2, metal base 1's preceding terminal surface is equipped with chip groove 3, metal base 1's bottom is equipped with horizontal muscle 5, horizontal muscle 5's bottom side is equipped with first pin 6, second pin 7, third pin 8 by right to left side in proper order, metal base 1's rear end face is equipped with the confession copper sheet groove 4 of the installation of heat dissipation copper sheet 2, metal base 1's right side is equipped with fixing part 10, copper sheet groove 4's right side is equipped with and supplies fixing part 10 male slot 12, heat dissipation copper sheet 2's rear end face is equipped with a plurality of heat dissipation sand grips 14.
Preferably, welding parts 9 are arranged on two sides of the top of the transverse rib 5; for soldering to a chip.
Preferably, the top of the metal base 1 is provided with a connecting hole 18; for fixing the transistor.
Preferably, round grooves 13 are formed at four corners of the copper sheet groove 4; so that the heat-radiating copper sheet 2 can be more easily inserted into the copper sheet groove 4, and the circular groove 13 provides more operating space for a technician to lift up the heat-radiating copper sheet 2.
Preferably, the heat dissipation convex strips 14 are arranged in parallel at equal intervals, and at least ten heat dissipation convex strips are arranged, and both ends of each heat dissipation convex strip 14 are provided with fillets; the area of contact of increase and air improves the radiating effect, and the fillet can prevent to take place the condition of card post when cutting 11 inserts for cutting 11 inserts or extracts more smoothly.
Preferably, the fixing part 10 further comprises an inserting strip 11, the inserting strip 11 is in sliding fit with the slot 12, and the cross sections of the inserting strip 11 and the slot 12 are both in an L shape; the fixing effect of the inserting strips 11 on the radiating copper sheet 2 is improved, and the stability is improved.
Preferably, the top end and the bottom end of the heat dissipation copper sheet 2 are both provided with a first step 15 of the void-avoiding inserting strip 11.
Preferably, a second step 16 is arranged at the top angle and the bottom angle of the heat dissipation copper sheet 2 at the side far away from the fixing part 10; the second step 16 is used as a relay point for tilting out the heat dissipation copper sheet 2, so that the speed is increased.
Preferably, a convex plate 17 is arranged on one side of the fixing part 10; the fixing member 10 is conveniently used.
Example (b):
through the slip fit of the insertion strip 11 on the fixing part 10 and the slot 12 on the metal base 1, the heat dissipation copper sheet 2 can be quickly fixed or detached in the copper sheet groove 4, the difficulty of replacing the heat dissipation copper sheet 2 is reduced, the heat dissipation function is guaranteed through replacement, meanwhile, a plurality of heat dissipation protruding strips 14 are additionally arranged on the rear end face of the heat dissipation copper sheet 2, the contact area between the heat dissipation copper sheet and air is increased, and the heat dissipation effect is improved.
It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Claims (9)
1. The utility model provides a lead frame convenient to change heat dissipation copper sheet, includes metal base, heat dissipation copper sheet, its characterized in that, metal base's preceding terminal surface is equipped with the chip groove, metal base's bottom is equipped with horizontal muscle, the bottom side of horizontal muscle is equipped with first pin, second pin, third pin by right side to a left side in proper order, metal base's rear end face is equipped with the confession the copper sheet groove of heat dissipation copper sheet installation, metal base's right side is equipped with fixed part, the right side in copper sheet groove is equipped with and supplies fixed part male slot, the rear end face of heat dissipation copper sheet is equipped with a plurality of heat dissipation sand grips.
2. The lead frame for conveniently replacing a heat dissipating copper sheet as claimed in claim 1, wherein the two sides of the top of the transverse rib are provided with welding parts.
3. The lead frame for replacing a heat dissipating copper sheet conveniently as claimed in claim 1, wherein the top of the metal base is provided with a connecting hole.
4. The lead frame for conveniently replacing a heat dissipation copper sheet as claimed in claim 1, wherein the four corners of the copper sheet groove are provided with round grooves.
5. The lead frame convenient for replacing the heat dissipation copper sheet as claimed in claim 1, wherein the heat dissipation ribs are arranged in parallel at equal intervals and at least ten heat dissipation ribs are arranged, and both ends of the heat dissipation ribs are provided with rounded corners.
6. The lead frame convenient for replacing the heat dissipation copper sheet as claimed in claim 1, wherein the fixing member further comprises a plug strip, the plug strip is in sliding fit with the slot, and the cross sections of the plug strip and the slot are both in an "L" shape.
7. The lead frame convenient for replacing the heat dissipation copper sheet as claimed in claim 1 or 6, wherein the top end and the bottom end of the heat dissipation copper sheet are provided with the first step of the void-avoiding inserting strip.
8. The lead frame for conveniently replacing the heat dissipation copper sheet as claimed in claim 1, wherein the heat dissipation copper sheet is provided with second steps at the top corner and the bottom corner of the side far away from the fixing part.
9. The lead frame for easy replacement of heat sink copper sheet as claimed in claim 1, wherein a protruding plate is provided on one side of said fixing member.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022610971.1U CN213401183U (en) | 2020-11-12 | 2020-11-12 | Lead frame convenient to change heat dissipation copper sheet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022610971.1U CN213401183U (en) | 2020-11-12 | 2020-11-12 | Lead frame convenient to change heat dissipation copper sheet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213401183U true CN213401183U (en) | 2021-06-08 |
Family
ID=76194083
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022610971.1U Expired - Fee Related CN213401183U (en) | 2020-11-12 | 2020-11-12 | Lead frame convenient to change heat dissipation copper sheet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213401183U (en) |
-
2020
- 2020-11-12 CN CN202022610971.1U patent/CN213401183U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210608 |