CN201383572Y - Electric connector combination and backboard - Google Patents
Electric connector combination and backboard Download PDFInfo
- Publication number
- CN201383572Y CN201383572Y CN200920004973U CN200920004973U CN201383572Y CN 201383572 Y CN201383572 Y CN 201383572Y CN 200920004973 U CN200920004973 U CN 200920004973U CN 200920004973 U CN200920004973 U CN 200920004973U CN 201383572 Y CN201383572 Y CN 201383572Y
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- base plate
- assembly
- rigid material
- plate
- electric connector
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Abstract
The utility model relates to an electric connector combination and a backboard, and the electric connector combination contains an electric connector and a backboard. The electric connector is fixed on an upper board surface of a circuit board. The backboard is fixed on a lower board surface of the circuit board relative to the position of the electric connector, and comprises a rigid material soleplate and a non-conducting material plate clamped between the rigid material soleplate and the circuit board. A plurality of assembly parts are upwards convexly arranged on the rigid material soleplate, and each assembly part is provided with an assembly section. An assembly hole is respectively arranged at the position on the non-conducting material plate corresponding to each assembly part, and the assembly hole and the assembly section of each assembly part are in interference fit. The electric connector combination is provided with the backboard with a compound structure formed by compounding the non-conducting material plate and the rigid material soleplate, the backboard is easily assembles and has a more stable combined structure, and the electric connector combination can provide sufficient flexural rigidity and meanwhile greatly reduce the cost and lighten the weight.
Description
Technical field
The utility model relates to a kind of electric connector combination, is meant a kind of electric connector combination with backboard of compound structure especially.
Background technology
General backboard is used to strengthen the intensity of printed circuit board (PCB), and backboard can with radiator or the CPU electric connector be locked together in printed circuit board (PCB) on the radiator or the back side of CPU electric connector.Existing backboard has the backboard of plastic shaping or metal stamping formed backboard.Though the backboard of plastics is made simple and cost is low, intensity is not enough.Metal backing has higher intensity, but the material cost height, and manufacturing cost is also high, and generally needs all to add that a soft insulating trip reaches the insulation effect between metal backing and the printed circuit board (PCB) in use.
Consult Fig. 1, TaiWan, China utility model patent M341950 number (the corresponding application case 200820032094.0 of Chinese utility model patent) has disclosed a kind of electric connector combination 10, in order to be mounted to printed circuit board (PCB) 13 to electrically connect chip module 12 and printed circuit board (PCB) 13, it comprises that one is fixed to the electric connector 11 of the top of printed circuit board (PCB) 13, an and metal backing 15 that is fixed to the below of printed circuit board (PCB) 13, wherein, be provided with an ambroin sheet 14 between described metal backing 15 and the printed circuit board (PCB) 13, and ambroin sheet 14 is provided with trip 141 and is fastened on the metal backing 15.
In aforementioned patent, be that soft insulating trip is replaced to an ambroin sheet 14, though disclosed the composite construction that between metal backing 15 and printed circuit board (PCB) 13, is provided with ambroin sheet 14, but ambroin sheet 14 is as the purposes of insulation, reach the insulation effect of 13 of metal backing 15 and printed circuit board (PCB)s with this, do not disclose and strengthen the structure of intensity, the effect that acts on and reduce cost as backboard.
And, above-mentioned patent is to utilize the trip 141 on the ambroin sheet 14 to be fastened on the metal backing 15, because backboard can be subjected to great bending moment effect and produce flexural deformation, and the character of plastic sheet is that elasticity is low, material is crisp, split easily when therefore being subjected to flexural deformation, even trip 141 is easy to generate fracture.
Summary of the invention
Therefore, the purpose of this utility model promptly is to provide a kind of electric connector combination, it has and utilizes the compound high rigid material of non-conducting material to become the backboard of a compound structure, this backboard assembling is easy and combined structure is more stable, enough flexural rigidities can be provided, can significantly reduce cost simultaneously, weight reduction.
Another purpose of the present utility model promptly is to provide a kind of backboard that utilizes the compound high rigid material of non-conducting material to become a compound structure, this backboard assembling is easy and combined structure is more stable, enough flexural rigidities can be provided, can significantly reduce cost simultaneously, weight reduction.
So the combination of the utility model electric connector comprises an electric connector and a backboard.This electric connector is fixed on the upper face of a circuit board.This backboard is fixed on the lower face of this circuit board with respect to this electric connector position, and comprises a rigid material base plate, and a non-conducting material plate that is folded between this rigid material base plate and this circuit board.The convex majority assembly that are provided with of this rigid material base plate, each assembly has an assembled portion.On this non-conducting material plate the position of corresponding each assembly be respectively equipped with one with the assembly hole of the assembled portion interference engagement of each assembly.
Preferably, the inner surface of each assembly hole is provided with the interference projection of outer surface interference engagement of the assembled portion of a plurality of and each assembly.In an embodiment of the present utility model, the cross section of the assembled portion of each assembly is generally rounded, and the cross section of each assembly hole is generally rounded.In another embodiment of the present utility model, the cross section of the assembled portion of each assembly is generally rectangular, and the cross section of each assembly hole is generally rectangular.
Preferably, the combination of this electric connector also comprises a plurality ofly is fixed in the fixture of this circuit board with this electric connector and this backboard, and each assembly also has a locking part sealed with corresponding fixture.In an embodiment of the present utility model, the outer surface of the locking part of each assembly is formed with external screw thread.In another embodiment of the present utility model, the locking part of each assembly has a perforation, and the inner surface of this perforation is formed with internal thread.
Preferably, this rigid material base plate also has a body, and the mode that described a plurality of assemblies can the integrated punching moulding is connected in this body, can also be riveted on this body in the riveting part on it.
Preferably, the rough area that equals this rigid material base plate of the area of this non-conducting material plate, the coefficient of elasticity of this non-conducting material plate is less than the coefficient of elasticity of this rigid material base plate, the thickness of this non-conducting material plate is greater than the thickness of this rigid material base plate, the proportion of this non-conducting material plate is less than the proportion of this rigid material base plate, and the Unit Weight cost of this non-conducting material plate is lower than the Unit Weight cost of this rigid material base plate.
Preferably, this rigid material base plate is the made base plate of metal material; And more preferably, the metal material of this rigid material base plate is stainless steel or carbon steel.
Preferably, this non-conducting material plate is that plastic material is made; And more preferably, the plastic material of this non-conducting material plate is polymeric liquid crystal copolymer, poly terephthalic acid second butanediol ester or acrylonitrile-butadiene-phenylethylene co-polymer.
And the utility model backboard is the backboard in the aforementioned electric connector combination, and it comprises: a rigid material base plate, and this rigid material base plate is convex to be provided with a plurality of assemblies, and each assembly has an assembled portion; And a non-conducting material plate that is incorporated into the upper face of this rigid material base plate, on this non-conducting material plate the position of corresponding each assembly be respectively equipped with one with the assembly hole of the assembled portion interference engagement of each assembly.
Useful technique effect of the present utility model is: the backboard that becomes a compound structure by the compound high rigid material base plate of non-conducting material plate, and the design of the assembled portion of assembly of the utilizing high rigid material base plate assembly hole direct interference engagement corresponding with the non-conducting material plate, make that the backboard assembling is easy and combined structure is more stable, enough flexural rigidities can be provided, can significantly reduce cost simultaneously, weight reduction.
Description of drawings
Fig. 1 is a three-dimensional exploded view, and an existing electric connector combination is described;
Fig. 2 is a three-dimensional exploded view, and first preferred embodiment of the utility model electric connector combination is described;
Fig. 3 is the end view of this first preferred embodiment;
Fig. 4 is the three-dimensional exploded view of the backboard of this first preferred embodiment;
Fig. 5 is the partial enlarged drawing of I part among Fig. 4, and the assembly hole of a non-conducting material plate is described;
Fig. 6 is the schematic diagram of an existing high rigid material base plate;
Fig. 7 is a non-conducting material plate and the bottom plate combined schematic diagram of a high rigid material;
Fig. 8 is the schematic diagram after Fig. 7 changes section;
Fig. 9 is a three-dimensional exploded view, and second preferred embodiment of the utility model electric connector combination is described;
Figure 10 is the three-dimensional exploded view of the backboard of this second preferred embodiment;
Figure 11 is the three-dimensional exploded view of the high rigid material base plate of this second preferred embodiment;
Figure 12 is the stereogram of the assembly of this second preferred embodiment;
Figure 13 is a stereogram, and the backboard of the 3rd preferred embodiment of the utility model electric connector combination is described;
Figure 14 is the three-dimensional exploded view of the backboard of the 3rd preferred embodiment;
Figure 15 is the three-dimensional exploded view of the high rigid material base plate of the 3rd preferred embodiment;
Figure 16 is a stereogram, and the backboard of the 4th preferred embodiment of the utility model electric connector combination is described;
Figure 17 is the three-dimensional exploded view of the backboard of the 4th preferred embodiment; And
Figure 18 is the three-dimensional exploded view of the high rigid material base plate of the 4th preferred embodiment.
Wherein, description of reference numerals is as follows:
2 electric connectors make up 3 electric connectors
31 insulating bodies, 32 terminals
33 pedestals, 331 fixed parts
34 action bars, 35 cover plates
351 buckling partss, 4 fixtures
51 perforation of 5 circuit boards
6 backboards, 61 high rigid material base plates
611 bodies, 612 assemblies
614 perforation of 612 ' assembly
615 assembled portion, 615 ' assembled portion
616 locking parts, 616 ' locking part
617 ' riveting part, 617 riveting parts
Sheet is colluded in 618 perforation 619
62 non-conducting material plates, 621 assembly holes
624 interfere projection 625 to collude the portion of closing
626 perforation
Embodiment
About aforementioned and other technology contents, characteristics and effect of the present utility model, in the detailed description of following cooperation four preferred embodiments with reference to the accompanying drawings, can clearly present.
Before the utility model is described in detail, be noted that in the following description content similarly assembly is to represent with identical numbering.
Consult Fig. 2, Fig. 3 and Fig. 4, first preferred embodiment of the utility model electric connector combination 2 comprises an electric connector 3, a backboard 6 and a plurality of fixture 4 that electric connector 3 and backboard 6 is individually fixed in a circuit board 5 upper and lower plate faces.
In the present embodiment, high rigid material base plate 61 is that metal material is made and non-conducting material plate 62 is made for plastic material; And more preferably, the metal material of high rigid material base plate 61 is stainless steel or carbon steel, and the plastic material of non-conducting material plate 62 is polymeric liquid crystal copolymer (Liquid CrystalPolymer, abbreviation LCP), poly terephthalic acid second butanediol ester (Polybothlene Terephthalate, be called for short PBT) or acrylonitrile-butadiene-phenylethylene co-polymer (Acrylonitrile-Butadene-Styrene is called for short ABS).
High rigid material base plate 61 has a body 611, a plurality of assembly that is connected in body 611 and upwards is convexly equipped with 612, reaches two from the upwardly extending sheet 619 that colludes of body 611 1 lateral margins.Be noted that especially described a plurality of assembly 612 is and body 611 integrated punching moulding.
Each assembly 612 have an assembled portion 615 and one and assembled portion 615 be positioned at the locking part 616 of sustained height position.Locking part 616 has an inner surface, and this inner surface is formed with internal thread with sealed with the external screw thread of the perforation 618 of corresponding fixture 4.
On the non-conducting material plate 62 position of corresponding each assembly 612 be respectively equipped with one with the assembly hole 621 of assembled portion 615 interference engagement of each assembly 612, the inner surface of each assembly hole 621 is provided with the interference projection 624 (consulting Fig. 5) of outer surface interference engagement of the assembled portion 615 of a plurality of and each assembly 612.Design by interference engagement firmly is connected to each other non-conducting material plate 62 and high rigid material base plate 61 and makes assembling quite easy.In addition, non-conducting material plate 62 also has two confessions and colludes sheet 619 and collude the portion of closing 625 of colluding of closing.
In the present embodiment, the cross section of the assembled portion 615 of each assembly 612 is generally rounded, and the cross section of each assembly hole 621 is generally rounded.
So, fixture 4 can be arranged in the perforation 51 of fixed part 331 with the circuit board 5 of electric connector 3, and sealed with the locking part 616 of the assembly 612 of backboard 6.
Consult Fig. 6, Fig. 7 and Fig. 8, more be better than the existing flexural rigidity that only uses high rigid material base plate 15, with the explanation that is compared to each other of the situation of a reality in order to illustrate that the 61 compound designs of non-conducting material plate 62 and high rigid material base plate can provide.Wherein, the coefficient of elasticity of high rigid material base plate 61,15 is E
m, the coefficient of elasticity of non-conducting material plate 62 is E
p, and hypothesis E
m=15E
p
Figure 6 shows that the size of existing single high rigid material base plate 15, calculate second moment of area I respectively neutral axis
1And flexural rigidity (EI)
1:
I
1＝(1/12)×b×1.8
3＝0.486b
(EI)
1＝E
m×0.486b＝0.486E
mb
And the compound backboard 6 of size shown in Figure 7 is to be composited with non-conducting material plate 62 by high rigid material base plate 61, need change section such as Fig. 8 (the rectangle composite beam that is about to two kinds of materials converts the homogeneous T type beam that is all non-conducting material plate 62 to) when calculating second moment of area earlier, and calculate the position y of neutral axis respectively, to the second moment of area I of neutral axis
2And flexural rigidity (EI)
2:
I
2＝(1/3)×15b×0.703
3+(1/3)×14b×0.097
3+(1/3)×b×2.697
3＝8.281b
(EI)
2＝E
p×8.281b＝(1/15)E
m×8.281b＝0.552E
mb
Flexural rigidity (EI) by aforementioned more compound backboard 6
2Flexural rigidity (EI) greater than existing single high rigid material base plate 15
1, provable compound backboard 6 structures can provide enough flexural rigidities.
Consult Fig. 9, Figure 10 and Figure 11, be second preferred embodiment of the utility model electric connector combination 2, itself and the main difference of first preferred embodiment are the design of backboard 6.
In present embodiment, high rigid material base plate 61 has a body 611, a plurality of assembly that is connected in body 611 and upwards is convexly equipped with 612.Each assembly 612 (consulting Figure 12) has the locking part 616 that an assembled portion 615, is positioned at assembled portion 615 upper ends, and a riveting part 617 that is positioned at assembled portion 615 root edges.
It is sealed for the fixture 4 of correspondence that the outer surface of locking part 616 is formed with external screw thread.Riveting part 617 is riveted on the perforation 614 of body 611 so that assembly 612 is connected in body 611.
On the non-conducting material plate 62 position of corresponding each assembly 612 be respectively equipped with one with the assembly hole 621 of assembled portion 615 interference engagement of each assembly 612, the inner surface of each assembly hole 621 is provided with the interference projection 624 of outer surface interference engagement of the assembled portion 615 of a plurality of and each assembly 612.
In the present embodiment, the cross section of the assembled portion 615 of each assembly 612 is generally rounded, and the cross section of each assembly hole 621 is generally rounded.
So, the locking part 616 of the assembly 612 of backboard 6 can be arranged in the perforation 51 of circuit board 5, and sealed with the fixture 4 of the fixed part 331 that is arranged in electric connector 3.
Consult Figure 13, Figure 14 and Figure 15, be the backboard 6 of the 3rd preferred embodiment of the utility model electric connector combination, its and the main difference of second preferred embodiment are the shaped design of the assembly hole 621 of the assembled portion 615 of assembly 612 of high rigid material base plate 61 and non-conducting material plate 62.
In the present embodiment, the cross section of the assembled portion 615 of each assembly 612 is generally rectangular, and the cross section of each assembly hole 621 is generally rectangular.And the inner surface of each assembly hole 621 is provided with the interference projection 624 of outer surface interference engagement of the assembled portion 615 of a plurality of and each assembly 612 equally.
In addition, the riveting part 617 of each assembly 612 is positioned at assembled portion 615 root edges and rectangular, and the rectangle perforation 614 that can be riveted on body 611 accordingly is so that assembly 612 is connected in body 611.
Consult Figure 16, Figure 17 and Figure 18, be the backboard 6 of the 4th preferred embodiment of the utility model electric connector combination, in the present embodiment, high rigid material base plate 61 has the assembly 612,612 ' of two kinds of kenels.
Each assembly 612 that is positioned at than the outside has the locking part 616 that an assembled portion 615, is positioned at assembled portion 615 upper ends, and a riveting part 617 that is positioned at assembled portion 615 root edges, and locking part 616 has an inner surface and is formed with internal thread for sealed perforation 618.Be positioned at each inboard assembly 612 ' and have the locking part 616 ' that an assembled portion 615 ', is positioned at assembled portion 615 ' upper end, and a riveting part 617 ' that is positioned at assembled portion 615 ' root edge, and the outer surface of locking part 616 ' is formed with external screw thread for sealed.Riveting part 617,617 ' all is riveted on the perforation 614 of body 611 correspondences so that assembly 612,612 ' is connected in body 611.
On the non-conducting material plate 62 position of corresponding each assembly 612 be respectively equipped with one with the assembly hole 621 of assembled portion 615 interference engagement of each assembly 612, the inner surface of each assembly hole 621 is provided with the interference projection 624 of outer surface interference engagement of the assembled portion 615 of a plurality of and each assembly 612.But not the position of corresponding each assembly 612 ' is respectively equipped with a perforation 626 that supplies each assembly 612 ' to wear on the plate of conductive material 62.
Be noted that especially, in the present embodiment, have only assembled portion 615 firmly to be connected to each other with high rigid material base plate 61 to reach non-conducting material plate 62 with assembly hole 621 interference engagement than the assembly 612 in the outside, and inboard assembly 612 ' only passes perforation 626, and its assembled portion 615 ' there is no the function of assembling in this.
In sum, become the backboard 6 of a compound structure by non-conducting material plate 62 compound high rigid material base plates 61, and the design of the corresponding assembly hole 621 direct interference engagement of assembled portion 615 and the non-conducting material plate 62 of assembly 612 that utilizes high rigid material base plate 61, make that backboard 6 assemblings are easy and combined structure is more stable, enough flexural rigidities can be provided, can significantly reduce cost simultaneously, weight reduction.
Yet the above only is preferred embodiment of the present utility model, can not limit the scope that the utility model is implemented with this, be that all simple equivalent of being done according to scope of the present utility model and utility model description change and modify, all still belong in the scope that the utility model contains.
Claims (16)
1. an electric connector combination is characterized in that, comprises:
One electric connector is fixed on the upper face of a circuit board; And
One backboard is fixed on the lower face of this circuit board with respect to this electric connector position, comprising:
One rigid material base plate, this rigid material base plate is convex to be provided with a plurality of assemblies, and each assembly has an assembled portion, and
One is folded in the non-conducting material plate between this rigid material base plate and this circuit board, on this non-conducting material plate the position of corresponding each assembly be respectively equipped with one with the assembly hole of the assembled portion interference engagement of each assembly.
2. according to the combination of the described electric connector of claim 1, it is characterized in that the inner surface of each assembly hole is provided with the interference projection of outer surface interference engagement of the assembled portion of a plurality of and each assembly.
3. according to claim 1 or the combination of 2 described electric connectors, it is characterized in that this electric connector combination also comprises a plurality ofly is fixed in the fixture of this circuit board with this electric connector and this backboard, each assembly also has a locking part sealed with corresponding fixture.
4. according to the combination of the described electric connector of claim 3, it is characterized in that this rigid material base plate also has a body, described a plurality of assemblies be connected in this body and with this body integrated punching moulding.
5. according to the combination of the described electric connector of claim 3, it is characterized in that this rigid material base plate also has a body, each assembly also has a riveting part that is riveted on this body.
6. according to the described electric connector combination of claim 3, it is characterized in that, the area of this non-conducting material plate approximates the area of this rigid material base plate, the coefficient of elasticity of this non-conducting material plate is less than the coefficient of elasticity of this rigid material base plate, the thickness of this non-conducting material plate is greater than the thickness of this rigid material base plate, the proportion of this non-conducting material plate is less than the proportion of this rigid material base plate, and the Unit Weight cost of this non-conducting material plate is lower than the Unit Weight cost of this rigid material base plate.
7. according to the described electric connector combination of claim 6, it is characterized in that this rigid material base plate is the made base plate of metal material.
8. according to the described electric connector combination of claim 7, it is characterized in that this non-conducting material plate is the made plate of plastic material.
9. a backboard is characterized in that, comprising:
One rigid material base plate, this rigid material base plate is convex to be provided with a plurality of assemblies, and each assembly has an assembled portion; And
One is incorporated into the non-conducting material plate of the upper face of this rigid material base plate, on this non-conducting material plate the position of corresponding each assembly be respectively equipped with one with the assembly hole of the assembled portion interference engagement of each assembly.
10. according to the described backboard of claim 9, it is characterized in that the inner surface of each assembly hole is provided with the interference projection of outer surface interference engagement of the assembled portion of a plurality of and each assembly.
11., it is characterized in that each assembly also has one and is used for sealed locking part according to claim 9 or 10 described backboards.
12., it is characterized in that this rigid material base plate also has a body according to the described backboard of claim 11, described a plurality of assemblies be connected in this body and with this body integrated punching moulding.
13., it is characterized in that this rigid material base plate also has a body according to the described backboard of claim 11, each assembly also has a riveting part that is riveted on this body.
14. according to the described backboard of claim 11, it is characterized in that, the area of this non-conducting material plate approximates the area of this rigid material base plate, the coefficient of elasticity of this non-conducting material plate is less than the coefficient of elasticity of this rigid material base plate, the thickness of this non-conducting material plate is greater than the thickness of this rigid material base plate, the proportion of this non-conducting material plate is less than the proportion of this rigid material base plate, and the Unit Weight cost of this non-conducting material plate is lower than the Unit Weight cost of this rigid material base plate.
15., it is characterized in that this rigid material base plate is the made base plate of metal material according to the described backboard of claim 14.
16., it is characterized in that this non-conducting material plate is the made plate of plastic material according to the described backboard of claim 15.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920004973U CN201383572Y (en) | 2009-03-02 | 2009-03-02 | Electric connector combination and backboard |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920004973U CN201383572Y (en) | 2009-03-02 | 2009-03-02 | Electric connector combination and backboard |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201383572Y true CN201383572Y (en) | 2010-01-13 |
Family
ID=41527043
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200920004973U Expired - Fee Related CN201383572Y (en) | 2009-03-02 | 2009-03-02 | Electric connector combination and backboard |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201383572Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111129799A (en) * | 2019-12-06 | 2020-05-08 | 番禺得意精密电子工业有限公司 | Locking device and connector assembly |
| CN111448716A (en) * | 2020-03-05 | 2020-07-24 | 四川华丰企业集团有限公司 | Back panel connector |
-
2009
- 2009-03-02 CN CN200920004973U patent/CN201383572Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111129799A (en) * | 2019-12-06 | 2020-05-08 | 番禺得意精密电子工业有限公司 | Locking device and connector assembly |
| CN111129799B (en) * | 2019-12-06 | 2021-06-18 | 番禺得意精密电子工业有限公司 | Locking device and connector assembly |
| CN111448716A (en) * | 2020-03-05 | 2020-07-24 | 四川华丰企业集团有限公司 | Back panel connector |
| CN111448716B (en) * | 2020-03-05 | 2021-09-21 | 四川华丰科技股份有限公司 | Back panel connector |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100113 Termination date: 20170302 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |