CN210574882U - Gear backlight module of measuring instrument - Google Patents
Gear backlight module of measuring instrument Download PDFInfo
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- CN210574882U CN210574882U CN201921725247.4U CN201921725247U CN210574882U CN 210574882 U CN210574882 U CN 210574882U CN 201921725247 U CN201921725247 U CN 201921725247U CN 210574882 U CN210574882 U CN 210574882U
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- measuring instrument
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Abstract
The utility model discloses a gear backlight unit of measuring instrument, include: the backlight module comprises a main shell, a light-transmitting shell and a backlight element arranged in the main shell; the main shell is provided with a light-transmitting groove, and the light-transmitting shell is arranged in the light-transmitting groove corresponding to the backlight element; the backlight element comprises a printed circuit board and a plurality of luminous bodies controlled to be lightened by the printed circuit board, a plurality of gear prompting grooves with the same number as the luminous bodies are arranged on the light-transmitting shell, and the luminous bodies are arranged in the gear prompting grooves and electrically connected with the printed circuit board; and the groove wall of the gear prompting groove is provided with a gear light-isolating wall corresponding to the luminous body and extending downwards. The utility model has reasonable and ingenious structural design, simple structure, low production cost and easy popularization; through the arrangement of the gear light-insulating wall and the first light-insulating coating, light fleeing between the gear prompt grooves is effectively prevented, and misjudgment accidents caused by the light fleeing are avoided; and the second separates the mode that light coating and printing opacity gear sign set up, has avoided wearing and tearing effectively, solves the problem that function gear sign falls the lacquer.
Description
Technical Field
The utility model relates to a structure field in a poor light, concretely relates to gear backlight unit of measuring instrument.
Background
At present, the function gear backlight illumination function of most measuring instruments such as universal meters, pincerlike meters, plug-in meters and the like on the market is integrally formed by combining a light guide plate, a convex groove, an LED lamp, an optical dot, reflective paper, filter paper and the like, so that the functional operation can be carried out by reading gears in a weak or dark environment; however, the structure of the combined backlight reminding module is very complicated, which is not beneficial to practical production operation, the cost is inevitably increased along with the complexity of the structure, and moreover, the backlight function realized by the combined backlight reminding module is very unstable, and light fleeing phenomenon often occurs in dark environment, which easily causes the misjudgment of a user on the function gear and affects the measurement result;
in addition, the traditional backlight reminding module often has the problems of easy abrasion of fonts and easy fading.
SUMMERY OF THE UTILITY MODEL
In order to solve the problem, the utility model discloses a gear backlight unit of measuring instrument.
The utility model discloses a realize that the technical scheme that above-mentioned purpose adopted is:
a gear backlight module of a measuring instrument comprises: the backlight module comprises a main shell, a light-transmitting shell and a backlight element arranged in the main shell; the main shell is provided with a light-transmitting groove, and the light-transmitting shell is arranged in the light-transmitting groove corresponding to the backlight element; the backlight element comprises a printed circuit board and a plurality of luminous bodies controlled to be lightened by the printed circuit board, a plurality of gear prompting grooves with the same number as the luminous bodies are arranged on the light-transmitting shell, and the luminous bodies are arranged in the gear prompting grooves and electrically connected with the printed circuit board; and the groove wall of the gear prompting groove corresponds to the light-emitting body and is downwards extended with a gear light-isolating wall.
And first light-insulating coatings are arranged on two sides of the gear light-insulating wall.
And a second light-isolating coating is arranged on the inner wall surface of the gear prompting groove.
A light-transmitting gear mark connected with the transparent shell is arranged through the second light-isolating coating.
The main shell is also provided with a knob placing groove; the light-transmitting groove surrounds the knob placing groove.
The knob placing groove is in a round table shape; the diameter of the knob placing groove is gradually reduced from top to bottom.
The printed circuit board is arranged in the main shell around the knob placing groove; and the printed circuit board is arranged into an arc shape corresponding to the knob placing groove.
The printed circuit board is provided with a control circuit, and the control circuit is provided with a plurality of signal output ends corresponding to the plurality of luminous bodies in a one-to-one correspondence manner; the luminous body is electrically connected with the signal output end.
The light-transmitting shell is a transparent shell.
The luminous body is an LED.
The utility model has the advantages that: the utility model has reasonable and ingenious structural design and simple structure, realizes the backlight function through the three-layer structure of the printed circuit board, the luminous body and the light-transmitting shell, has low production cost and is easy to popularize; through the arrangement of the gear light-insulating wall and the first light-insulating coating, light fleeing between the gear prompt grooves is effectively prevented, and misjudgment accidents caused by the light fleeing are avoided; the light generated by the luminous body has a certain light condensation effect through the gear light-proof wall, higher brightness can be achieved in a dark environment, and the applicability of the utility model to a complex environment is improved; the second light-proof coating and the light-transmitting gear mark are arranged in a mode, so that abrasion is effectively avoided, and the problem of paint falling of the functional gear mark is solved; in addition, control circuit can light or light when a plurality of luminous bodies by any luminous body of independent control to be applicable to more display demands, improve the utility model discloses an application scope.
The present invention will be further described with reference to the accompanying drawings and the following detailed description.
Drawings
Fig. 1 is a schematic structural diagram of a gear backlight module of a measuring instrument according to an embodiment of the present invention;
fig. 2 is a schematic structural view of front and back sides of a light-transmitting housing in an embodiment of the present invention;
fig. 3 is a schematic structural diagram of a backlight device according to an embodiment of the present invention.
Detailed Description
In an embodiment, referring to fig. 1 to fig. 3, a gear backlight module of a measuring instrument provided in this embodiment includes: a main casing 1, a light-transmitting casing 2, and a backlight element 3 disposed in the main casing 1; a light-transmitting groove 11 is formed in the main housing 1, and the light-transmitting housing 2 is installed in the light-transmitting groove 11 corresponding to the backlight element 3; the backlight element 3 comprises a printed circuit board 31 and a plurality of luminous bodies 32 controlled to be lightened by the printed circuit board 31, a plurality of gear prompting slots 21 with the same number as the luminous bodies 32 are arranged on the light-transmitting shell 2, and the luminous bodies 32 are arranged in the gear prompting slots 21 and electrically connected with the printed circuit board 31; and a gear position light-isolating wall 211 extends downwards from the groove wall of the gear position prompting groove 21 corresponding to the light-emitting body 32.
Specifically, the aperture of the light-transmitting groove 11 is gradually reduced from top to bottom, so that the light-transmitting shell 2 is conveniently embedded and assembled; the backlight function is realized through the three-layer structure of the printed circuit board 31, the luminous body 32 and the light-transmitting shell 2, the structure is simple, the production cost is low, and the popularization is easy;
when in use, the printed circuit board 31 controls the light-emitting body 32 to light up, and the light generated by the light-emitting body 32 passes through the light-transmitting shell 2 to be presented to a user, thereby realizing the backlight function;
in addition, through the arrangement of the gear light-isolating wall 211, light fleeing among the gear prompt grooves 21 is effectively prevented, and misjudgment accidents caused by the light fleeing are avoided; and through gear diaphragm wall 211 to the light that luminous body 32 took place certain spotlight effect, can reach higher luminance in the dark surrounds, improve the utility model discloses suitability to complex environment.
And first light-insulating coatings are arranged on two sides of the gear light-insulating wall 211.
Specifically, the gear light-blocking wall 211 can be made of a transparent material or a light-blocking material, and the requirement on the material of the gear light-blocking wall 211 is lowered by arranging light-blocking coatings formed by spraying on the two sides of the gear light-blocking wall 211, so that the cost is lowered, and due to the light-blocking performance of the light-blocking coatings, light fleeing between the gear prompt grooves 21 is effectively prevented, and misjudgment accidents caused by the light fleeing are avoided; and through gear diaphragm wall 211 to the light that luminous body 32 took place certain spotlight effect, can reach higher luminance in the dark surrounds, improve the utility model discloses suitability to complex environment.
And a second light-isolating coating is arranged on the inner wall surface of the gear prompting groove 21.
A light-transmitting gear mark 22 connected with the transparent shell is arranged through the second light-insulating coating.
Specifically, by arranging the second light-blocking coating on the inner wall surface in cooperation with the light-transmitting gear mark 22, light emitted by the light-emitting body 32 is blocked by the second light-blocking coating and can only penetrate out of the gear mark, so that the gear mark is realized; in addition, the problem of light channeling between gears is effectively solved through the arrangement of the second light-isolating coating; and because the second separates the internal face that the light coating set up at gear suggestion groove 21, do not touch with the external world under normal use, effectively avoid wearing and tearing, oxidation, solve the problem that common function gear sign falls the lacquer.
The light-transmitting gear mark 22 may be a character or a pattern for identifying a gear, the character or the pattern carves the second light-blocking pattern layer by laser, so that the second light-blocking coating layer is hollowed to form the required character or pattern, the printed circuit board 31 controls the light-emitting body 32 to be lightened, and light generated by the light-emitting body 32 passes through the light-transmitting gear mark 22 and then passes through the light-transmitting housing 2 to be presented to a user.
The main shell 1 is also provided with a knob placing groove 12; the light transmission groove 11 is disposed around the knob placement groove 12.
Specifically, this knob standing groove 12 is used for placing the gear knob, and will be a plurality of gear light-transmitting groove 11 encircles this knob standing groove 12 and sets up, makes the gear knob revolve set angle when selecting the gear, and the knob that more laminates is shown in a poor light, presents a good visual effect for the user.
The knob placing groove 12 is in a circular truncated cone shape; the diameter of the knob placing groove 12 is gradually reduced from top to bottom.
The printed circuit board 31 is disposed in the main housing 1 around the knob placement groove 12; and the printed circuit board 31 is disposed in an arc shape corresponding to the knob placement groove 12.
Specifically, the printed circuit board 31 is set to be arc-shaped, and is more fit with the shape of the knob placement groove 12, so that the space occupation of the printed circuit board 31 is effectively saved, and the miniaturization of the measuring instrument is realized.
Further, the lower end of the wall of the knob placing groove 12 is provided with a limiting protrusion.
The printed circuit board 31 is provided with a control circuit, and the control circuit is provided with a plurality of signal output ends corresponding to the plurality of luminous bodies 32 in a one-to-one correspondence manner; the light emitting body 32 is electrically connected to the signal output terminal.
Specifically, the control circuit is provided with a plurality of signal output ends corresponding to the plurality of luminous bodies 32 in a one-to-one correspondence manner; the luminous body 32 with signal output part electric connection, control circuit can light when arbitrary luminous body 32 of independent control lights or a plurality of luminous body 32 to be applicable to more display demands, improve the utility model discloses an application scope.
The light-transmitting shell 2 is a transparent shell.
In particular, the transparent housing may be a fully transparent housing or a translucent housing.
The light 32 is an LED.
When the LED backlight module is used, the printed circuit board 31 controls the light-emitting body 32 to be lightened, light generated by the light-emitting body 32 passes through the light-transmitting gear mark 22 and then penetrates through the light-transmitting shell 2 to be presented to a user, and the function of gear recognition of backlight is achieved;
in addition, the control circuit can individually control any one of the light emitters 32 to be turned on or a plurality of light emitters 32 to be simultaneously turned on according to the setting of the user.
The utility model has reasonable and ingenious structural design and simple structure, realizes the backlight function through the three-layer structure of the printed circuit board 31, the luminous body 32 and the light-transmitting shell 2, has low production cost and is easy to popularize; through the arrangement of the gear light-isolating wall 211 and the first light-isolating coating, light channeling between the gear prompt grooves 21 is effectively prevented, and misjudgment accidents caused by light channeling are avoided; the light generated by the light emitting body 32 has a certain light condensation effect through the gear light-insulating wall 211, so that higher brightness can be achieved in a dark environment, and the applicability of the utility model to a complex environment is improved; the second light-proof coating and the light-transmitting gear mark 22 are arranged in a mode, so that abrasion is effectively avoided, and the problem of paint falling of the functional gear mark is solved; in addition, the control circuit can independently control any luminous body 32 to be lighted or a plurality of luminous bodies 32 to be lighted simultaneously, so as to be suitable for more display demands and improve the application range of the utility model.
The above description is only for the preferred embodiment of the present invention, and is not intended to limit the present invention in any way. The technical solution of the present invention can be used by anyone skilled in the art to make many possible variations and modifications, or to modify equivalent embodiments, using the technical means and contents disclosed above, without departing from the scope of the technical solution of the present invention. Therefore, the equivalent changes made according to the shape, structure and principle of the present invention should be covered in the protection scope of the present invention.
Claims (10)
1. The utility model provides a gear backlight unit of measuring instrument which characterized in that includes: the backlight module comprises a main shell, a light-transmitting shell and a backlight element arranged in the main shell;
the main shell is provided with a light-transmitting groove, and the light-transmitting shell is arranged in the light-transmitting groove corresponding to the backlight element;
the backlight element comprises a printed circuit board and a plurality of luminous bodies controlled to be lightened by the printed circuit board, a plurality of gear prompting grooves with the same number as the luminous bodies are arranged on the light-transmitting shell, and the luminous bodies are arranged in the gear prompting grooves and electrically connected with the printed circuit board;
and the groove wall of the gear prompting groove corresponds to the light-emitting body and is downwards extended with a gear light-isolating wall.
2. The gear backlight module of the measuring instrument according to claim 1, wherein first light-blocking coatings are disposed on two sides of the gear light-blocking wall.
3. The gear backlight module of the measuring instrument according to claim 2, wherein the inner wall surface of the gear prompting groove is provided with a second light-shielding coating.
4. The gear backlight module of the measuring instrument according to claim 3, wherein a light-transmitting gear mark connected with the light-transmitting shell is provided through the second light-blocking coating.
5. The gear backlight module of the measuring instrument according to claim 1, wherein the main housing is further provided with a knob placement groove;
the light-transmitting groove surrounds the knob placing groove.
6. The gear backlight module of the measuring instrument according to claim 5, wherein the knob placement groove is truncated cone-shaped;
the diameter of the knob placing groove is gradually reduced from top to bottom.
7. The gear backlight module of the measuring instrument according to claim 5, wherein the printed circuit board is disposed in the main housing around the knob placement groove;
and the printed circuit board is arranged into an arc shape corresponding to the knob placing groove.
8. The gear backlight module of the measuring instrument according to claim 5, wherein a control circuit is arranged on the printed circuit board, and a plurality of signal output ends are arranged on the control circuit in a one-to-one correspondence manner corresponding to the plurality of luminous bodies;
the luminous body is electrically connected with the signal output end.
9. The gear backlight module of the measuring instrument according to claim 1, wherein the light-transmissive housing is a transparent housing.
10. The gear backlight module of the measuring instrument according to claim 1, wherein the light emitter is an LED.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921725247.4U CN210574882U (en) | 2019-10-15 | 2019-10-15 | Gear backlight module of measuring instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921725247.4U CN210574882U (en) | 2019-10-15 | 2019-10-15 | Gear backlight module of measuring instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210574882U true CN210574882U (en) | 2020-05-19 |
Family
ID=70661579
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921725247.4U Active CN210574882U (en) | 2019-10-15 | 2019-10-15 | Gear backlight module of measuring instrument |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210574882U (en) |
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2019
- 2019-10-15 CN CN201921725247.4U patent/CN210574882U/en active Active
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