CN201781719U - Circuit board fixing structure and portable mobile terminal - Google Patents
Circuit board fixing structure and portable mobile terminal Download PDFInfo
- Publication number
- CN201781719U CN201781719U CN2010202738084U CN201020273808U CN201781719U CN 201781719 U CN201781719 U CN 201781719U CN 2010202738084 U CN2010202738084 U CN 2010202738084U CN 201020273808 U CN201020273808 U CN 201020273808U CN 201781719 U CN201781719 U CN 201781719U
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- circuit board
- shell
- nut
- screen
- portable mobile
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- Mounting Of Printed Circuit Boards And The Like (AREA)
Abstract
The utility model discloses a circuit board fixing structure and a portable mobile terminal, which relate to the technical field of electronics and resolve the technical problem that the existing portable mobile terminal is poorer in reliability. The circuit board fixing structure comprises a first outer casing and a second outer casing, wherein the side surface of the first outer casing is opposite to the side surface of the second outer casing, the first outer casing and the second outer casing are opposite to a circuit board, a screen is fixedly arranged on one side of the first casing far away from the circuit board, an edge of a side surface of the circuit board, which is far away from the first outer casing, is fixed on the first outer casing on the periphery of the screen through at least one self-tapping screw, at least one first nut is fixedly disposed on the side surface of the circuit board far away from the first outer casing, at least one first through hole opposite to each first nut is arranged on the second outer casing, and the second outer casing is fixed on the circuit board through the first through holes and the first nuts via at least one first screw in the amount identical to that of the first nuts. The utility model is applied to improving reliability of circuit board fixing structures in electronic equipment.
Description
Technical field
The utility model relates to electronic technology field, the portable mobile termianl that is specifically related to a kind of circuit board fixation structure and is provided with this circuit board fixation structure.
Background technology
Along with the continuous development of electronic technology, portable mobile termianls such as mobile phone, palmtop PC have become means of communication the most common in people's daily life.
At present, existing portable mobile termianl, comprise casing, be arranged at the screen on the casing and be arranged at the interior circuit board of casing, casing comprises fore shell, the back cover that is approximate rectangular, circuit board is arranged between fore shell, the back cover, side away from back cover on the fore shell is installed with screen, and screen is electrically connected with circuit board, and four edges of back cover are fixed on the fore shell by screw and nut fit structure.
The portable mobile termianl that is provided with large-screen now more and more is subjected to client's favor, with the mobile phone is example, gather multiple function, for example: the smart mobile phone of functions such as GPS location, FM, CMMB often adopts bigger screen for the comfortableness that strengthens user's use, for example: 3.5 inches lcd screen.
Simultaneously, the location), visual enjoyment when seeing the mobile phone TV (or claim: for improve using portable mobile termianl online such as mobile phone, checking coordinate, those skilled in the art often also make screen greatly as far as possible, and more and more narrow with zone design parallel with screen surface on the fore shell of screen periphery, for example: only there is the wide surplus of 1mm in the zone parallel with screen surface on the fore shell around the mobile phone screen that has.
The inventor finds that there is following problem at least in prior art in realizing process of the present utility model:
Because in the prior art, though four edges of back cover can be fixed on the fore shell by screw and nut fit structure, but the zone design parallel with screen surface is narrow on the fore shell of screen periphery, so the zone parallel with screen surface do not have the mode of enough spaces by screw is set in the prior art with the fore shell on the portable mobile termianl on the fore shell of screen periphery, back cover and circuit board are fixed together, so be difficult to guarantee portable mobile termianl screen place fore shell, the reliability that is connected between back cover and the circuit board, and then cause the reliability of portable mobile termianl poor.
The utility model content
The portable mobile termianl that the utility model embodiment provides a kind of circuit board fixation structure and has been provided with this circuit board fixation structure has solved the poor technical problem of existing portable mobile termianl reliability.
For achieving the above object, embodiment of the present utility model adopts following technical scheme:
This circuit board fixation structure comprises first shell, second shell that two relative with circuit board position respectively lateral location are relative, wherein:
Described first shell is installed with screen away from a side of described circuit board, and the edge away from the side of described first shell on the described circuit board is fixed on described first shell of described screen periphery by at least one tapping screw;
Side away from described first shell on the described circuit board is installed with at least one first nut, offer at least one first through hole relative on described second shell, by described first through hole and described first nut described second shell is fixed on the described circuit board with the same number of at least one first screw of described first nut with each described first nut location.
This portable mobile termianl comprises circuit board and above-mentioned circuit board fixation structure provided by the utility model.
Compared with prior art, the utility model provides the arbitrary technical scheme in the technique scheme to have following advantage:
Because in the circuit board fixation structure provided by the utility model, edge away from the side of first shell on the circuit board is fixed on first shell of screen periphery by at least one tapping screw, when tapping screw pierces on first shell from circuit board, even the zone design parallel with screen surface is narrow on first shell of screen periphery, first shell also is enough to hold the less end of tapping screw outline away from a side of screen, and the space that tapping screw is installed on the circuit board is more abundant, so tapping screw can be firm with the circuit board at screen place, be fixed in reliably on first shell;
Simultaneously, because the side away from first shell on the circuit board is installed with at least one first nut, offer at least one first through hole relative on second shell with each first nut location, second shell is fixed on the circuit board by first through hole and first nut with the same number of at least one first screw of first nut, this shows, by circuit board first shell has been fixed on second shell in the utility model, because circuit board has rigidity and intensity preferably, can be firm, link together with first shell and second shell reliably, so guaranteed portable mobile termianl screen place first shell, the reliability that connects between the circuit board and second shell has solved the poor technical problem of existing portable mobile termianl reliability;
In addition, because two lateral location that second shell is relative with circuit board position respectively with first shell are relative, after second shell is fixed on the circuit board, second jacket is located on the bigger end of tapping screw outline, at this moment, the end that the tapping screw outline is bigger can be subjected to blocking of second shell, after the portable mobile termianl that is provided with this circuit board fixation structure assembles, can't come out in the end that the tapping screw outline is bigger, so the utility model can also make this portable mobile termianl more attractive in appearance in appearance.
Description of drawings
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, to do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art below, apparently, accompanying drawing in describing below only is embodiment more of the present utility model, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
The floor map at back cover place when Fig. 1 installs battery cover for the portable mobile termianl of the circuit board fixation structure that is provided with embodiment of the present utility model and provides;
Fig. 2 is a cross-sectional schematic of portable mobile termianl shown in Figure 1;
Fig. 3 is the enlarged diagram of A part among Fig. 2;
Cross-sectional schematic when Fig. 4 does not install back cover for portable mobile termianl shown in Figure 1;
Fig. 5 is the enlarged diagram of B part among Fig. 4;
A cross-sectional schematic when Fig. 6 does not install battery cover for portable mobile termianl shown in Figure 1;
Fig. 7 is the enlarged diagram of C part among Fig. 6;
Another cross-sectional schematic when Fig. 8 does not install battery cover for portable mobile termianl shown in Figure 1;
Fig. 9 is the enlarged diagram of D part among Fig. 8.
Embodiment
Below in conjunction with the accompanying drawing among the utility model embodiment, the technical scheme among the utility model embodiment is clearly and completely described, obviously, described embodiment only is the utility model part embodiment, rather than whole embodiment.Based on the embodiment in the utility model, those of ordinary skills are not making the every other embodiment that is obtained under the creative work prerequisite, all belong to the scope of the utility model protection.
The utility model embodiment provides that a kind of connection reliability is good, compact conformation and the circuit board fixation structure of good looking appearance and the portable mobile termianl that is provided with this circuit board fixation structure.
As Fig. 1, Fig. 2 and shown in Figure 3, the circuit board fixation structure that the utility model embodiment is provided, comprise first shell 2, second shell 3 that two relative with circuit board 1 position respectively lateral location are relative, wherein: first shell 2 is installed with screen 4 away from a side of circuit board 1, and the edge away from the side of first shell 2 on the circuit board 1 is fixed on first shell 2 of screen 4 peripheries by at least one tapping screw 5;
Side away from first shell 2 on the circuit board 1 is installed with at least one as Fig. 4 and first nut 6 shown in Figure 7, offer at least one relative first through hole 7 as shown in Figure 8 on second shell 3, by first through hole 7 and first nut 6 second shell 3 is fixed on the circuit board 1 with first nut, 6 the same number of at least one first screw 8 with each first nut, 6 position.
Because in the circuit board fixation structure provided by the utility model, edge away from the side of first shell 2 on the circuit board 1 is fixed on first shell 2 of screen 4 peripheries by at least one tapping screw 5, when tapping screw 5 pierces on first shell 2 from circuit board 1, even the zone design parallel with screen 4 surfaces is narrow on first shell 2 around the screen 4, first shell 2 also is enough to hold the less end of tapping screw 5 outlines away from a side of screen 4, and the space that tapping screw 5 is installed on the circuit board 1 is more abundant, so tapping screw 5 can be firm with the circuit board 1 at screen 4 places, be fixed in reliably on first shell 2;
Simultaneously, because the side away from first shell 2 on the circuit board 1 is installed with at least one first nut 6, offer at least one first through hole 7 relative on second shell 3 with each first nut, 6 position, second shell 3 is fixed on the circuit board 1 by first through hole 7 and first nut 6 with first nut, 6 the same number of at least one first screw 8, this shows, by circuit board 1 first shell 2 has been fixed on second shell 3 in the utility model, because circuit board 1 has rigidity and intensity preferably, can be firm, link together with first shell 2 and second shell 3 reliably, so guaranteed portable mobile termianl screen 4 places first shell 2, the reliability that connects between the circuit board 1 and second shell 3 has solved the poor technical problem of existing portable mobile termianl reliability;
In addition, because two lateral location that second shell 3 is relative with circuit board 1 position respectively with first shell 2 are relative, after second shell 3 is fixed on the circuit board 1, second shell 3 is covered on the bigger end of tapping screw 5 outlines, at this moment, the end that tapping screw 5 outlines are bigger can be subjected to blocking of second shell 3, after the portable mobile termianl that is provided with this circuit board fixation structure assembles, can't come out in the end that tapping screw 5 outlines are bigger, so the utility model can also make this portable mobile termianl more attractive in appearance in appearance.
As Fig. 4, Fig. 6 and shown in Figure 7, first nut 6 is fixed on the circuit board 1 by SMT (Surface Mounted Technology, surface mounting technology) technology in the present embodiment.Adopt first nut 6 that SMT technology is fixed on the circuit board 1 to have advantages such as reliability height, the antivibration ability is strong, the welding point defect rate is low, easily be automated, so be suitable on the circuit board 1 of portable mobile termianl, fixing first nut 6.Certainly, first nut 6 also can adopt other fixing meanss such as glue bonding, injection moulding to be fixed on the circuit board 1 in the present embodiment.Be fixed with 3 first nuts 6 in the present embodiment on the circuit board 1, thereby 3 first screws 8 match with 3 first nuts 6 respectively second shell 3 are fixed on the circuit board 1.
As Fig. 6, Fig. 7 and shown in Figure 8, as further improvement of this embodiment, in the present embodiment on first shell, 2 length directions relative edge, position be installed with the first side wall 9 that extends towards near second shell, 3 directions, relative edge, position is installed with second sidewall 10 that extends towards near first shell, 2 directions on second shell, 3 length directions, and is provided with at least one between the first side wall 9 and second sidewall 10 as Fig. 8 and button bit fit structure 11 shown in Figure 9.Length direction typically refers to the maximum bearing of trend of the object of comparison rule.Set button bit fit structure 11 can be gone up various devices on the protective circuit plate 1 from the Width (direction vertical with length direction) of circuit board 1 on the one hand between the first side wall 9 and second sidewall 10 and the first side wall 9 and second sidewall 10; it is more compact to guarantee to be provided with on the portable mobile termianl Width of present embodiment circuit board fixation structure structure on the other hand, and profile is more attractive in appearance.
As Fig. 8 and shown in Figure 9, button bit fit structure 11 comprises first groove 12 and second buckle 13 as shown in Figure 9 in the present embodiment, and wherein: first groove 12 is opened on the first side wall 9 side away from circuit board 1; Second buckle 13 is fixedly arranged on second sidewall, 10 edges and towards the direction near circuit board 1 and extends, and second buckle 13 is embedded in first groove 12.On the one hand, the fit structure of first groove 12 and second buckle 13 is not only simple in structure, and can prevent effectively that dust or moisture from entering circuit board 1 by the gap between the first side wall 9 and second sidewall 10 from the Width of circuit board 1, on the other hand, the fit structure of first groove 12 and second buckle 13 can also avoid first shell 2 and second shell 3 (or to claim: thickness direction) go up mutually and throw off along the direction perpendicular to circuit board 1 plane to a certain extent.
As Fig. 5 and shown in Figure 9, also be installed with the boss 14 that is step-like between the bottom surface of first groove 12 near the sidewall of screen 4 and first groove 12 in the present embodiment, second buckle 13 offers the 3rd groove 15 near the part of screen 4, and boss 14 is embedded in the 3rd groove 15.The fit structure of boss 14 and the 3rd groove 15 can play certain sealing effectiveness to the gap between the first side wall 9 and second sidewall 10, can more efficientlyly prevent that dust or moisture from entering circuit board 1 by the gap between the first side wall 9 and second sidewall 10 from the Width of circuit board 1.
As further improvement of this embodiment, in the present embodiment first groove 12 away from the sidewall of screen 4 away from the outer surface of second buckle 13 be provided with towards the direction away from screen 4 raise gradually as Fig. 5 and shown in Figure 9 domatic 16.Domatic 16 make that frictional force was littler when second buckle 13 moved to the position that embeds first groove 12 through the sidewall of first groove 12, and then make the shell 2 of winning more smooth and easy, laborsaving with the process that second shell 3 assembles.
As shown in Figure 4 and Figure 5, be installed with at least one fixing buckle 17 as shown in Figure 5 on the first side wall 9, each fixedly buckle 17 all towards extending near the direction of circuit board 1 central region, circuit board 1 is relative with screen 4 positions, and the edge of circuit board 1 is at screen 4 and fixedly lean between the buckle 17 and with fixing buckle 17 side near screen 4.Fixedly buckle 17 can play the effect that prevents that circuit board 1 from getting loose towards the direction away from screen 4, and then helps guaranteeing the steadiness of circuit board 1 position.
Adopt welding, injection moulding or hot melting mode to be installed with at least one second nut on first shell 2, offer second through hole 18 relative as shown in Figure 1 on second shell 3, by second through hole 18 and second nut second shell 3 is fixed on first shell 2 with the same number of second screw 19 of second nut with second nut location.The fit structure of second nut and second screw 19 can more efficientlyly be fixed together first shell 2 and second shell 3.First shell 2 and second shell 3 are all rectangular tabular in the present embodiment, and second nut is arranged at four edges of second shell 3.
The circuit board fixation structure that is provided as Fig. 2 and circuit board shown in Figure 41 and above-mentioned the utility model embodiment is provided the portable mobile termianl that the utility model embodiment is provided.
Because the portable mobile termianl that the utility model embodiment is provided has identical technical characterictic with the circuit board fixation structure that above-mentioned the utility model embodiment is provided, so also can produce identical technique effect, solves identical technical problem.
As shown in Figure 6, circuit board 1 is the mainboard of this portable mobile termianl, and first shell 2 is the fore shell of this portable mobile termianl, and second shell 3 is the back cover of this portable mobile termianl.Mainboard is a circuit board 1 maximum on the portable mobile termianl, suitablely uses technical scheme provided by the utility model and improves the reliability that is connected between screen 4 place's circuit boards 1 and this portable mobile termianl fore shell, the back cover.
Certainly, circuit board fixation structure provided by the utility model also can be applied on other electronic equipments outside the portable mobile termianl or be applied to other circuit boards outside the mainboard on the fixing portable mobile termianl.
The above; it only is embodiment of the present utility model; but protection range of the present utility model is not limited thereto; anyly be familiar with those skilled in the art in the technical scope that the utility model discloses; can expect easily changing or replacing, all should be encompassed within the protection range of the present utility model.Therefore, protection range of the present utility model should be as the criterion with the protection range of claim.
Claims (10)
1. circuit board fixation structure is characterized in that: comprise first shell, second shell that two relative with circuit board position respectively lateral location are relative, wherein:
Described first shell is installed with screen away from a side of described circuit board, and the edge away from the side of described first shell on the described circuit board is fixed on described first shell of described screen periphery by at least one tapping screw;
Side away from described first shell on the described circuit board is installed with at least one first nut, offer at least one first through hole relative on described second shell, by described first through hole and described first nut described second shell is fixed on the described circuit board with the same number of at least one first screw of described first nut with each described first nut location.
2. circuit board fixation structure according to claim 1 is characterized in that: described first nut is fixed on the described circuit board by SMT technology.
3. circuit board fixation structure according to claim 1, it is characterized in that: relative edge, position is installed with the first side wall that extends towards near the described second shell direction on the described first outer cover length direction, relative edge, position is installed with second sidewall that extends towards near the described first shell direction on the described second outer cover length direction, and is provided with at least one button bit fit structure between described the first side wall and described second sidewall.
4. circuit board fixation structure according to claim 3 is characterized in that: described button bit fit structure comprises first groove and second buckle, wherein:
Described first groove is opened on the described the first side wall side away from described circuit board;
Described second buckle is fixedly arranged on described second side edge along last and towards extending near the direction of described circuit board, described second buckle is embedded in described first groove.
5. circuit board fixation structure according to claim 4, it is characterized in that: also be installed with the boss that is step-like between the sidewall of the approaching described screen of described first groove and the bottom surface of described first groove, described second buckle offers the 3rd groove near the part of described screen, and described boss is embedded in described the 3rd groove.
6. circuit board fixation structure according to claim 4 is characterized in that: described first groove away from the sidewall of described screen away from the outer surface of described second buckle be provided with towards the direction away from described screen raise gradually domatic.
7. circuit board fixation structure according to claim 4, it is characterized in that: be installed with at least one fixedly buckle on the described the first side wall, each described fixedly buckle all extends towards the direction near described circuit board central region, described circuit board is relative with described screen position, and the edge of described circuit board is at described screen and describedly fixedly lean between the buckle and with a side of the nearly described screen of described fixed card snapping.
8. circuit board fixation structure according to claim 1, it is characterized in that: adopt welding, injection moulding or hot melting mode to be installed with at least one second nut on described first shell, offer second through hole relative on described second shell, by described second through hole and described second nut described second shell is fixed on described first shell with the same number of second screw of described second nut with described second nut location.
9. a portable mobile termianl is characterized in that: comprise the arbitrary described circuit board fixation structure of circuit board and claim 1 to 8.
10. portable mobile termianl according to claim 9 is characterized in that: described circuit board is the mainboard of this portable mobile termianl, and described first shell is the fore shell of this portable mobile termianl, and described second shell is the back cover of this portable mobile termianl.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202738084U CN201781719U (en) | 2010-07-28 | 2010-07-28 | Circuit board fixing structure and portable mobile terminal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202738084U CN201781719U (en) | 2010-07-28 | 2010-07-28 | Circuit board fixing structure and portable mobile terminal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201781719U true CN201781719U (en) | 2011-03-30 |
Family
ID=43794915
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202738084U Expired - Fee Related CN201781719U (en) | 2010-07-28 | 2010-07-28 | Circuit board fixing structure and portable mobile terminal |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201781719U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102546867A (en) * | 2011-12-30 | 2012-07-04 | 惠州Tcl移动通信有限公司 | Fastening structure |
| CN105873408A (en) * | 2016-05-30 | 2016-08-17 | 努比亚技术有限公司 | PCB fixing structure and mobile terminal |
-
2010
- 2010-07-28 CN CN2010202738084U patent/CN201781719U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102546867A (en) * | 2011-12-30 | 2012-07-04 | 惠州Tcl移动通信有限公司 | Fastening structure |
| CN105873408A (en) * | 2016-05-30 | 2016-08-17 | 努比亚技术有限公司 | PCB fixing structure and mobile terminal |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110330 Termination date: 20130728 |