CN205317227U - Instrument in a poor light - Google Patents

Abstract

The utility model is suitable for an instrument and meter field provides an instrument in a poor light, including shell, knob, gear calibrated scale, mainboard, be fixed in printing opacity ring, light source subassembly on the shell, locate light guide plate, leaded light post and the dish that is shaded between light source subassembly and the printing opacity ring, connect the via hole including the carousel with install the instruction LED lamp on the carousel, has been seted up to the dish that is shaded in the knob, the leaded light post is installed in connect the via hole, the gear calibrated scale sets up the surface that encircles in the printing opacity. Through set up the leaded light post on the knob, set up the dish that is shaded in the knob to the light that is shaded on coiling can be through leaded light post effluvium, the gear calibrated scale sets up in the surface of printing opacity ring, and light that the light source subassembly sent gives off to the printing opacity through the light guide plate and encircles to leaded light post and gear calibrated scale can be comparatively striking under the dark surrounds, convenient select the shelves operation to the knob, but so that operating personnel normal use instrument and meter still under the dark surrounds, and do benefit to the pleasing to the eye effect of improvement instrument and meter.

Description

Backlight instrument

Technical field

This utility model belongs to instrument field, particularly relates to a kind of backlight instrument.

Background technology

In prior art, the instrument and meter such as circuit tester, pincerlike meter generally comprises knob and gear graduated disc, and gear graduated disc surrounds knob, in order to knob indicates different scale places in use, and instrument and meter carries out corresponding function. Existing instrument and meter is not provided with backing structure, so, make operator cannot see the position of instrument and meter upper knob instruction under dark surrounds clearly, have a strong impact on operator's use to instrument and meter to operate, and finally make operator cannot normally use instrument and meter under dark surrounds.

Utility model content

The purpose of this utility model is in that to provide a kind of backlight instrument, it is intended to solve the problem that existing instrument and meter normally cannot use under dark surrounds.

This utility model is realized in, a kind of backlight instrument, including shell, for selecting the knob of gear, for the gear graduated disc indicating gear and the mainboard being installed in described shell, also include the light penetrating ring being fixed on shell, it is located at the light source assembly of the relative inner of described light penetrating ring, it is located at the light guide plate between described light source assembly and described light penetrating ring, for indicating the light-guiding pillar of gear selection position and providing the backlight dish of backlight for described light-guiding pillar, described backlight dish includes the rotating disk being articulated on described mainboard and the indication LED lamp being installed on described rotating disk, described rotating disk and described mainboard are electrical connected, described light source assembly and described mainboard are electrical connected, described knob offers connection through hole, described light-guiding pillar is installed in described connection through hole, described gear graduated disc is arranged at the outer surface of described light penetrating ring.

Further, described rotating disk is provided with two shell fragments being electrically connected described indication LED lamp in the one side of described mainboard, described mainboard is provided with two conducting rings slided respectively for two described shell fragments, and two described shell fragments support two described conducting rings respectively.

Further, on described rotating disk, the position male corresponding to described shell fragment is provided with installing plate, and described shell fragment is fixed on corresponding described installing plate.

Further, each described shell fragment is V-shaped, and the middle part of each described shell fragment offers opening, and described installing plate coordinates in the opening inserting corresponding described shell fragment.

Further, also including the gear dish for positioning described knob and light-permeable, described gear dish is located between described knob and described backlight dish.

Further, described gear dish is provided with some locating slots being distributed ringwise, described knob protrudes towards the direction of described gear dish and is extended with positioning sleeve, be provided with hoodle in described positioning sleeve.

Further, the periphery of described gear dish is convexly equipped with connection ring towards the direction of the outer surface of knob, and described connection ring is connected with described light penetrating ring.

Further, described knob is provided with light-guiding shade.

Further, described light guide plate includes the annular light guide base plate surrounding described knob and the positioning tab being convexly equipped in described annular light guide base plate periphery.

Further, described light source assembly includes the annular circuit board surrounding described knob and the backlight LED light being located on described circuit board, and the periphery of described annular circuit board is provided with at least one and connects lug.

This utility model, by arranging light-guiding pillar on knob, arranges backlight dish, thus the light on backlight dish can shed through light-guiding pillar in knob; Gear graduated disc is arranged at the outer surface of light penetrating ring, the light that light source assembly sends distributes to light penetrating ring through light guide plate, thus light-guiding pillar and gear graduated disc can be comparatively eye-catching under dark surrounds, to guide to people, conveniently knob is carried out gear selecting operation, so that operator still can normally use instrument and meter under dark surrounds, and it is beneficial to the aesthetic improving instrument and meter.

Accompanying drawing explanation

Fig. 1 is the perspective view of the backlight instrument that this utility model embodiment provides;

Fig. 2 is the plan structure schematic diagram of the backlight instrument of Fig. 1;

Fig. 3 is the sectional structure schematic diagram along Fig. 2 center line A-A;

Fig. 4 is the sectional structure schematic diagram along Fig. 2 center line B-B;

Fig. 5 is the decomposition texture schematic diagram of the backlight instrument of Fig. 1;

Fig. 6 is the decomposition texture schematic diagram of backlight another angle of instrument of Fig. 5;

Fig. 7 is the structure for amplifying schematic diagram of backlight dish in Fig. 6;

Fig. 8 is the assembling generalized section of knob and light-guiding pillar in Fig. 6;

Fig. 9 is light penetrating ring in Fig. 5, gear dish and the structure for amplifying schematic diagram connecting ring.

Detailed description of the invention

In order to make the purpose of this utility model, technical scheme and advantage clearly understand, below in conjunction with drawings and Examples, this utility model is further elaborated. Should be appreciated that specific embodiment described herein is only in order to explain this utility model, be not used to limit this utility model.

In description of the present utility model, it should be noted that, orientation or the position relationship of the instruction such as term " middle part ", " end ", " interior ", " outward " are based on orientation shown in the drawings or position relationship, it is for only for ease of description this utility model and simplifies description, rather than the device of instruction or hint indication or element must have specific orientation, with specific azimuth configuration and operation, therefore it is not intended that to restriction of the present utility model.

Referring to Fig. 1-Fig. 9, a kind of backlight instrument 100 that this utility model embodiment provides, including shell 10, knob 21, gear graduated disc 40, mainboard 50, light penetrating ring 41, light source assembly 44, light guide plate 45, light-guiding pillar 22 and backlight dish 30. Shell 10 is used for fixing and parts in protective meter. Knob 21 is used for selecting gear, and gear graduated disc 40 is used for indicating gear, when turning knob 21 points to scales different on gear graduated disc 40, it is possible to select different function gears. Mainboard 50 is installed in shell 10, carries out master control. Gear graduated disc 40 is arranged at the outer surface of light penetrating ring 41, and light penetrating ring 41 is fixed on shell 10; Light source assembly 44 is located at the side of light penetrating ring 41, and this side is the side (side back to its outer surface of light penetrating ring 41 defined below is its relative inner) back to light penetrating ring 41 outer surface, then light source assembly 44 is located at the relative inner of light penetrating ring 41; Light guide plate 45 is located between light source assembly 44 and light penetrating ring 41, the light that then light source assembly 44 sends can be uniformly distributed through light guide plate 45, irradiate to light penetrating ring 41 again, the gear graduated disc 40 on light penetrating ring 41 can be irradiated to accordingly, thus gear graduated disc 40 can be seen in dark conditions clearly. Knob 21 offers connection through hole 211, light-guiding pillar 22 is installed in connection through hole 211, knob 21 is installed on backlight dish 30, and backlight dish 30 is used for providing backlight, when the backlight illumination of backlight dish 30 is to light-guiding pillar 22, shed through light-guiding pillar 22 conduction, under dark environment, it can directly be seen that light-guiding pillar 22, such that it is able to play the effect of instruction gear selection position; Backlight dish 30 is connected with mainboard 50, in order to provide power supply by mainboard 50 to backlight dish 30, controls backlight dish 30 simultaneously also by mainboard 50. Backlight dish 30 includes rotating disk 31 and indication LED lamp 32, indication LED lamp 32 is installed on rotating disk 31, rotating disk 31 and mainboard 50 are electrical connected, to power for indication LED lamp 32 and to control indication LED lamp 32, rotating disk 31 is articulated on mainboard 50 simultaneously, thus rotating disk 31 can be transported on mainboard 50, when gear selecting transported by knob 21, rotating disk 31 can rotate with knob 21, in order to the light sent can be better irradiated on light-guiding pillar 22 by the indication LED lamp 32 on rotating disk 31.

The light on backlight dish 30 by arranging light-guiding pillar 22 on knob 21, backlight dish 30 is set in knob 21, thus can shed through light-guiding pillar 22; Gear graduated disc 40 is arranged at the outer surface of light penetrating ring 41, the light that light source assembly 44 sends distributes to light penetrating ring 41 through light guide plate 45, thus light-guiding pillar 22 and gear graduated disc 40 can be comparatively eye-catching under dark surrounds, to guide to people, conveniently knob 21 is carried out gear selecting operation, so that operator still can normally use instrument and meter under dark surrounds, and it is beneficial to the aesthetic improving instrument and meter.

In concrete application, can pass through directly on the outer surface of light penetrating ring 41 mode of inscription or printing identification character field form gear graduated disc 40; Or, it is possible to by by inscribe the label paper having or being printed with mark character field or or the labei sheet mode that is attached on the outer surface of light penetrating ring 41 form gear graduated disc 40. Further, light penetrating ring 41 can be perspex part, in concrete application, each mark character field on gear graduated disc 40 can be made to be in full impregnated light state; Or, it is possible to the mode being coated with light-proof material by local on light penetrating ring 41 makes each mark character field on gear graduated disc 40 be in semi-transparent state.

Further, Fig. 3, Fig. 5, Fig. 6 and Fig. 8 are referred to, it is preferable that light-guiding pillar 22 is just arranged by indication LED lamp 32. By indication LED lamp 32 just to light-guiding pillar 22, it is possible to make the light that indication LED lamp 32 sends better enter light-guiding pillar 22, under dark surrounds, make light-guiding pillar 22 more eye-catching. In the present embodiment, indication LED lamp 32 is only one, with better using electricity wisely, and uses an indication LED lamp 32 to provide backlight for light-guiding pillar 22, it is also ensured that light-guiding pillar 22 is higher brightness. In other embodiments, it is possible to use multiple indication LED lamps 32.

Further, refer to Fig. 4, Fig. 5, Fig. 6 and Fig. 7, rotating disk 31 is provided with two shell fragments 33, mainboard 50 is correspondingly arranged on two tool conducting rings 51, two shell fragments 33 support two conducting rings 51 respectively, and two shell fragments 33 can slide along two conducting rings 51, and two shell fragments 33 are arranged on rotating disk 31 in the one side of mainboard 50, and two shell fragments 33 are electrical connected with indication LED lamp 32, in order to power for indication LED lamp 32. Arranging shell fragment 33 on rotating disk 31, and arrange the structure of conducting ring 51 on mainboard 50, it is possible to when rotating disk 31 rotates with knob 21, indication LED lamp 32 can also rotate with rotating disk 31, and mainboard 50 can be powered for indication LED lamp 32 simultaneously. Additionally, this structure arranges and the shell fragment 33 of rotating disk 31 can be made to support mainboard 50, thus being possible not only to reduce the use of wire, ease of assembly, and the distance between rotating disk 31 and mainboard 50 can be reduced, by more compact for the structure fabrication of this instrument backlight knob 21, can better adapt to the instrument and meter of small volume.

Further, on rotating disk 31, the position male corresponding to shell fragment 33 is provided with installing plate 312, and shell fragment 33 is fixed on corresponding installing plate 312. Rotating disk 31 arranges installing plate 312, to facilitate fixation spring tab 33, is also convenient for shell fragment 33 simultaneously and is electrical connected with indication LED lamp 32. In other embodiments, it is also possible on rotating disk 31, offer mounting groove, and shell fragment 33 is arranged in this mounting groove.

Further, it is preferable to ground, each shell fragment 33 is V-shaped, and the middle part of each shell fragment 33 offers opening 331, and installing plate 312 coordinates in the opening 331 inserting corresponding shell fragment 33. Shell fragment 33 is arranged V-shaped, such that it is able to make the V-type tip of shell fragment 33 support the conducting ring 51 on mainboard 50, when shell fragment 33 slides on conducting ring 51, guide effect can be played in the two ends of V-type shell fragment 33, it is possible not only to make shell fragment 33 better support conducting ring 51, and shell fragment 33 can be made to slide on conducting ring 51 more flexibly.

Referring to Fig. 3, Fig. 4, Fig. 7 and Fig. 8, further, rotating disk 31 is convexly equipped with some parting beads 313 in the one side of mainboard 50. Rotating disk 31 arranges parting bead 313, when rotating disk 31 is arranged on mainboard 50, it is possible to make to have between shell fragment 33 and mainboard 50 certain deformation gap, in order to shell fragment 33 better supports on the conducting ring 51 of mainboard 50. It addition, this structure can also make rotating disk 31 better be supported on mainboard 50. In the present embodiment, some parting beads 313 are arranged parallel, and arrange in a row along rotating disk 31 diametric(al). In other embodiments, parting bead 313 can also be the structures such as concentric annular. Further, rotating disk 31 being convexly equipped with fin 314 in the one side of mainboard 50, to increase the intensity of rotating disk 31, fin 314 can coordinate with parting bead 313 simultaneously, to be better supported on mainboard 50. In the present embodiment, fin 314 is arranged on the periphery of rotating disk 31 and the both sides of row's parting bead 313.

Further, the middle part of knob 21 is provided with rotating shaft 212, and rotating disk 31 offers the perforate 311 coordinated with rotating shaft 212, and on mainboard 50, correspondence offers jack 52, and rotating shaft 212 is inserted in jack 52 through perforate 311. Rotating shaft 212 is set at the middle part of knob 21, namely can facilitate positioning knob 21, it is also possible to drive rotating disk 31 to rotate by rotating shaft 212. And on mainboard 50, offer jack 52, it is possible to knob 21 and rotating disk 31 are positioned, makes rotating disk 31 better coordinate with mainboard 50 and be electrically connected. In the present embodiment, the cross section of rotating shaft 212 is hexagonal, and the corresponding perforate 311 on rotating disk 31 is hexagonal, in order to rotating shaft 212 drives rotating disk 31 to rotate.

Referring to Fig. 4, Fig. 5, Fig. 6 and Fig. 9, further, this instrument backlight knob 21 also includes gear dish 42, and gear dish 42 is located between knob 21 and backlight dish 30. Gear dish 42 for positioning knob 21, simultaneously gear dish 42 can printing opacity, thus when the backlight of backlight dish 30 enters light-guiding pillar 22 through gear dish 42. Gear dish 42 is set, when knob 21 rotates, it is possible to better knob 21 turned position is positioned, in order to knob 21 better carries out gear selecting operation. In the present embodiment, the position of the indication LED lamp 32 corresponding to rotating disk 31 on gear dish 42 offers looping pit 422, so that indication LED lamp 32 can enter light-guiding pillar 22 through this looping pit 422. In other embodiments, it is possible to use transparent material processing and fabricating gear dish 42, to realize the light transmission function of gear dish 42. The middle part of gear dish 42 offers positioning through hole 421, and the rotating shaft 212 on knob 21 is connected through this positioning through hole 421 with rotating disk 31, and rotating shaft 212 can rotate in positioning through hole 421.

Further, in the present embodiment, gear dish 42 is provided with some locating slots 423, and these locating slots 423 are distributed on gear dish 42 ringwise; Knob 21 protrudes towards the direction of gear dish 42 and is extended with positioning sleeve 214, positioning sleeve 214 is provided with hoodle 215. When turning knob 21, hoodle 215 from a locating slot 423 be rolled to another locating slot 423 time, card can be formed, thus knob 21 is positioned. Preferably, it is possible to spring is installed in positioning sleeve 214, supports hoodle 215 with the direction to locating slot 423. In other embodiments, it is possible to use surface is that concavo-convex alternate disk is as gear dish 42, it is also possible to realize the effect of location.

The periphery of gear dish 42 is convexly equipped with connection ring 43 towards the direction of knob 21 outer surface, connects ring 43 and is connected with light penetrating ring 41, and this structure can also make the package assembly of knob 21 and gear graduated disc 40 more compact. Connection ring 43 is set, connection ring 43 is connected with light penetrating ring 41, it is possible to conveniently gear dish 42 and light penetrating ring 41 are fixedly linked, and then are fixedly linked with shell 10. Preferably, gear dish 42, connection ring 43 and light penetrating ring 41 can be one-body molded, and processing and fabricating is convenient, also allow for assembling simultaneously. In the present embodiment, connect ring 43 and be connected with the annular inboard limit of light penetrating ring 41, to facilitate gear dish 42, to connect ring 43 and the one-body molded processing and fabricating of light penetrating ring 41.

Refer to Fig. 4, Fig. 5, Fig. 8 and Fig. 9, knob 21 is provided with light-guiding shade 213, knob 21 arranges light-guiding shade 213, the light distributed on light-guiding pillar 22 can be dispersed on light-guiding shade 213, the light simultaneously distributed on light penetrating ring 41 also can be irradiated on light-guiding shade 213, then the brightness of light-guiding shade 213 lower than the brightness of light-guiding pillar 22 and light penetrating ring 41, can not interfere with the indicative function of light-guiding pillar 22, can conveniently see the shape of knob 21 simultaneously, facilitate operator's turn knobs 21.

Referring to Fig. 3, Fig. 5 and Fig. 6, further, light guide plate 45 includes the annular light guide base plate 451 surrounding knob 21 and the positioning tab 452 being convexly equipped in annular light guide base plate 451 periphery. The setting of annular light guide base plate 451, can make to conduct the light sent on light guide plate 45 on the one hand and can be irradiated to more fully on light penetrating ring 41, can be beneficial to the material cost reducing light guide plate 45 on the other hand. The setting of positioning tab 452, can be used for the installation location realizing light guide plate 45 in shell 10. In the present embodiment, it is preferable that annular light guide base plate 451 is enclosed within connection ring 43, it is possible to the structure making this backlight instrument 100 is more compact.

Further, light source assembly 44 includes the annular circuit board 441 surrounding knob 21 and the backlight LED light 443 being located on annular circuit board 441, and the periphery of annular circuit board 441 is provided with at least one and connects lug 442. The setting of annular circuit board 441, both can realize the compression location to annular light guide base plate 451, can be beneficial to again the material cost reducing circuit board. Connect the setting of lug 442, be mainly used in the installation location realizing annular circuit board 441 in shell 10. Backlight LED light 443 volume is little, good energy-conserving effect, environmental-protecting performance are good, easily controllable in use. Connect lug 442 to be fastenedly connected shell 10 by securing member (not shown) and be compressed by light guide plate 45. Securing member is screw or rivet etc. concretely, and herein, securing member is preferably screw, and its easy accessibility, fastening are reliably.

Further, annular circuit board 441 is provided with elastic thimble 444, and elastic thimble 444 is electrical connected with backlight LED light 443, and mainboard 50 supported by elastic thimble 444, thus elasticity thimble 444 and mainboard 50 being electrical connected. Use elastic thimble 444, easy to assembly.

Further, in shell 10, it is convexly equipped with several connection projections 11 for being connected with each securing member respectively, connects projection 11 and be provided with the connecting hole being connected with securing member. The quantity connecting projection 11 is identical with the quantity of connection lug 442, securing member, and each projection 11 that connects is connected lug 442 para-position setting with each respectively.

Further, connect lug 442, connection projection 11 and securing member and be designed with three, positioning tab 452 is provided with one, one of them securing member connects lug 442 through one and positioning tab 452 is fastenedly connected shell 10, and two other securing member is each passed through two other connection lug 442 and is fastenedly connected shell 10. Connect lug 442, connection projection 11 and securing member and be designed with three, be beneficial to the steadiness ensureing that annular circuit board 441 is installed in shell 10; And light guide plate 45 compresses spacing owing to can pass through annular circuit board 441, therefore, herein, positioning tab 452 is provided only with one, under ensureing the premise that light guide plate 45 installs steadiness, can be beneficial to simplify light guide plate 45 structure, and be beneficial to reduce due to foozle cause light guide plate 45 and circuit board install shell 10 in position difficulty. Of course, except preferred embodiment listed herewith, in concrete application, connect lug 442, connection projection 11, securing member and positioning tab 452 quantity and also can be set to other numerical value.

Preferably, this backlight instrument 100 is circuit tester or pincerlike meter, such that it is able to operate with under dark surrounds, improves circuit tester or the pincerlike meter property easy to use under dark surrounds, and enhances the profile magical feeling of circuit tester or pincerlike meter.

The foregoing is only preferred embodiment of the present utility model; not in order to limit this utility model; all any amendment, equivalent replacement and improvement etc. made within spirit of the present utility model and principle, should be included within protection domain of the present utility model.

Claims (10)

1. a backlight instrument, including shell, for selecting the knob of gear, for the gear graduated disc indicating gear and the mainboard being installed in described shell, it is characterized in that, also include the light penetrating ring being fixed on shell, it is located at the light source assembly of the relative inner of described light penetrating ring, it is located at the light guide plate between described light source assembly and described light penetrating ring, for indicating the light-guiding pillar of gear selection position and providing the backlight dish of backlight for described light-guiding pillar, described backlight dish includes the rotating disk being articulated on described mainboard and the indication LED lamp being installed on described rotating disk, described rotating disk and described mainboard are electrical connected, described light source assembly and described mainboard are electrical connected, described knob offers connection through hole, described light-guiding pillar is installed in described connection through hole, described gear graduated disc is arranged at the outer surface of described light penetrating ring.

2. backlight instrument as claimed in claim 1, it is characterized in that, described rotating disk is provided with two shell fragments being electrically connected described indication LED lamp in the one side of described mainboard, described mainboard is provided with two conducting rings slided respectively for two described shell fragments, and two described shell fragments support two described conducting rings respectively.

3. backlight instrument as claimed in claim 2, it is characterised in that on described rotating disk, the position male corresponding to described shell fragment is provided with installing plate, and described shell fragment is fixed on corresponding described installing plate.

4. backlight instrument as claimed in claim 3, it is characterised in that each described shell fragment is V-shaped, and the middle part of each described shell fragment offers opening, and described installing plate coordinates in the opening inserting corresponding described shell fragment.

5. the backlight instrument as described in any one of claim 1-4, it is characterised in that also including the gear dish for positioning described knob and light-permeable, described gear dish is located between described knob and described backlight dish.

6. backlight instrument as claimed in claim 5, it is characterised in that described gear dish is provided with some locating slots being distributed ringwise, described knob protrudes towards the direction of described gear dish and is extended with positioning sleeve, be provided with hoodle in described positioning sleeve.

7. backlight instrument as claimed in claim 5, it is characterised in that the periphery of described gear dish is convexly equipped with connection ring towards the direction of the outer surface of knob, and described connection ring is connected with described light penetrating ring.

8. the backlight instrument as described in any one of claim 1-4, it is characterised in that be provided with light-guiding shade on described knob.

9. the backlight instrument as described in any one of claim 1-4, it is characterised in that described light guide plate includes the annular light guide base plate surrounding described knob and the positioning tab being convexly equipped in described annular light guide base plate periphery.

10. the backlight instrument as described in any one of claim 1-4, it is characterized in that, described light source assembly includes the annular circuit board surrounding described knob and the backlight LED light being located on described circuit board, and the periphery of described annular circuit board is provided with at least one and connects lug.