Light guide structure for character lightening and vehicle door opening switch

Abstract

The light guide structure comprises a bottom cover and an upper cover which are connected in a covering mode, the upper cover is provided with a light guide channel, and the surface of the upper cover is provided with identification characters corresponding to the light guide channel. A backlight indicating lamp emitting light towards the identification characters is arranged between the upper cover and the bottom cover and comprises a light guide part and a backlight LED plate, the light guide part is horizontally distributed below the light guide channel, a plurality of sawtooth structures are arranged on the lower portion of the light guide part, the backlight LED plate is located at one end of the light guide part, and the sawtooth structures are arranged on the other end of the light guide part. An LED lamp emitting light towards the light guide part is arranged on the surface of the side, close to the light guide part, of the backlight LED plate. The utility model further provides a vehicle door opening switch comprising the light guide structure. According to the utility model, the light generated by the LED lamp can be uniformly transmitted to the light guide channel to be emitted out by the horizontally distributed light guide piece and the sawtooth structure at the lower part of the light guide piece, so that characters can be uniformly lighted, and the waterproof and dustproof effects are better.

Description

TECHNICAL FIELD

[0001] The utility model relates to light guide structure and car switch technical field especially, a light guide structure for character point is lit and car door opening switch. BACKGROUND

[0002] At present, the existing car door opening switch, in order to reach the effect of reminding, will set corresponding LED lamp to provide background light on switch cover body to light up character. However, the existing car door opening switch generally will directly depend on one or more LED lamp directly light up character, because of lacking good light guide structure design, leading to light transmission not enough uniform, easy to cause character to guide not enough clear, thereby influence user experience.

[0003] Therefore, it is necessary to provide a new light guide structure and car door opening switch to solve or at least alleviate the above technical defects. SUMMARY

[0004] The utility model discloses a light guide structure for character point and car door opening switch are provided, and the light of LED lamp can be evenly conducted and character is lighted up through the light guide piece of horizontal distribution set, and the problem mentioned in the above background technology is well solved.

[0005] In order to realize the above purpose, the utility model adopts the following technical scheme:

[0006] Firstly, the utility model provides a light guide structure for character point, including the bottom cover and upper cover of cover connection, the upper cover is equipped with light guide channel, and the surface of upper cover is equipped with the identification character corresponding with light guide channel;The back light indicating lamp of the identification character is equipped between the upper cover and the bottom cover and emits light, and the back light indicating lamp includes light guide piece and back light LED board, the light guide piece is horizontally distributed below the light guide channel, the lower part of light guide piece is equipped with a plurality of sawtooth structures, the back light LED board is located one end of light guide piece, and the surface of the side of back light LED board close to light guide piece is equipped with LED lamp and emits light to light guide piece.

[0007] Further, the surface of the side of light guide piece close to light guide channel is plane structure, and the surface of the side of light guide piece away from light guide channel is distributed with sawtooth structure.

[0008] Further, the thickness of the end of light guide piece close to LED lamp is greater than the thickness of the end of light guide piece away from LED lamp.

[0009] Further, the thickness of light guide piece is gradually reduced from the end close to LED lamp to the end away from LED lamp.

[0010] Further, a light-transmitting mounting shell is arranged between the upper cover and the bottom cover, one end of the mounting shell is connected with the light guide member, and the other end of the mounting shell is provided with a containing groove for mounting the backlight LED plate.

[0011] Further, the light guide member and the mounting shell are clamped and fixed by the upper cover and the bottom cover.

[0012] Further, the light guide member is provided with a positioning protrusion at one end close to the mounting shell, and the mounting shell is provided with a positioning groove matched with the positioning protrusion at one end close to the light guide member.

[0013] Further, the containing groove is filled with sealing glue covering the backlight LED plate.

[0014] Further, the upper cover is integrally injection molded by a light-transmitting upper cover panel and a non-light-transmitting upper cover body, and the light guide channel is formed by the upper cover body.

[0015] In the second aspect, the utility model also provides a car door opening switch, including key, car door switch and above-mentioned light guide structure for character lighting, the upper cover recess is equipped with key assembly groove for installing the key, the bottom wall of key assembly groove is equipped with the lead-through mouth, the lower portion of lead-through mouth is equipped with main control circuit board electric connection with the backlight LED plate, the car door switch is installed on the upper surface of main control circuit board, the bottom of key is equipped with pressing portion for abutting and pressing car door switch.

[0016] Compared with the prior art, the utility model provides a light guide structure for character lighting and a car door opening switch, which has the following beneficial effects:

[0017] The utility model discloses a light guide member horizontally distributed, which can evenly conduct the light generated by the LED lamp to the light guide channel and then evenly light the characters, and has good waterproof and dustproof effects. BRIEF DESCRIPTION OF DRAWINGS

[0018] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or the prior art, the drawings needed in the embodiment or the prior art description will be briefly introduced as follows, and obviously, the drawings in the following description are only some embodiments of the utility model, and those skilled in the art can also obtain other drawings according to these drawings without creating creative labor.

[0019] Figure 1 It is a three-dimensional structure schematic view of the utility model;

[0020] Figure 2 It is a half-section structure schematic view of the utility model.

[0021] Figure 3 For Figure 2 enlarged view at A in the middle;

[0022] Figure 4 For Figure 2 enlarged view at B in the middle;

[0023] Figure 5 is a schematic view of the assembled backlight indicating lamp of the present application;

[0024] Figure 6 is a schematic view of the assembled backlight indicating lamp of the present application from another perspective.

[0025] Reference signs: 1, bottom cover; 2, upper cover; 21, upper cover panel; 211, identification character; 22, upper cover body; 221, light guide channel; 222, key assembly groove; 223, through port; 3, backlight indicating lamp; 31, light guide piece; 311, sawtooth structure; 312, planar structure; 313, positioning bump; 32, backlight LED board; 33, LED lamp; 34, mounting shell; 341, containing groove; 342, positioning recess; 35, sealing glue; 4, key; 41, pressing part; 5, door switch; 6, main control circuit board; 7, screw. DETAILED DESCRIPTION

[0026] The technical solutions of the present application will be described clearly and completely below by means of detailed embodiments and in conjunction with the drawings. Obviously, the described embodiments are only some of the embodiments of the present application, but not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0027] Embodiment 1

[0028] Please refer to Figures 1-6The embodiment provides a light guide structure for character lighting, comprising a bottom cover 1 and an upper cover 2 connected in a cover, the upper cover 2 is provided with a light guide channel 221, and the surface of the upper cover 2 is provided with an identification character 211 corresponding to the light guide channel 221; the upper cover 2 and the bottom cover 1 are provided with a back light indicating lamp 3 emitting light towards the identification character 211, the back light indicating lamp 3 comprises a light guide piece 31 and a back light LED plate 32, the light guide piece 31 is horizontally distributed below the light guide channel 221, the lower part of the light guide piece 31 is provided with a plurality of sawtooth structures 311, the back light LED plate 32 is located at one end of the light guide piece 31, and the side surface of the back light LED plate 32 close to the light guide piece 31 is provided with an LED lamp 33 emitting light towards the light guide piece 31. Through the horizontally distributed light guide piece, the light generated by the LED lamp can be uniformly conducted to the light guide channel and emitted, so that the character can be more uniformly lighted, and the waterproof and dustproof effects are good.

[0029] In some specific embodiments, as an example, as shown in Figure 1 , the identification character 211 can be a symbol such as a LOGO or a word such as "WELCOME".

[0030] In some specific embodiments, referring to Figure 3 , Figure 5 and Figure 6 , the side surface of the light guide piece 31 close to the light guide channel 221 is a plane structure 312, and the side surface of the light guide piece 31 away from the light guide channel 221 is distributed with the sawtooth structure 311. In this way, the light emitted by the LED lamp can be reflected upwards and light up the identification character located above.

[0031] In some specific embodiments, referring to Figure 2 , Figure 3 , Figure 5 and Figure 6 , the thickness of the light guide piece 31 close to the LED lamp 33 is greater than the thickness of the light guide piece 31 away from the LED lamp 33. In this way, the sawtooth structures can be inclinedly arranged, so that the direction of the light is changed.

[0032] As a preferred embodiment, as shown in Figure 2 , Figure 5 and Figure 6 , the thickness of the light guide piece 31 gradually decreases from the end close to the LED lamp to the end away from the LED lamp. In this way, the light emitted into the light guide piece can be adjusted to be uniformly emitted towards the light guide channel direction from one end to the other end, that is, as shown in FIG. 3, the light emitted through the light guide piece is vertically upward and lights up the character.

[0033] In some embodiments, referring to Figure 2 , Figure 3 , Figure 5 and Figure 6 , a light-transmitting mounting shell 34 is arranged between the upper cover 2 and the bottom cover 1, one end of the mounting shell 34 is connected to the light guide 31, and the other end of the mounting shell 34 is provided with a receiving groove 341 for mounting the backlight LED plate 32. By arranging the mounting shell, the backlight LED plate can be more stably mounted and fixed. Specifically, as shown in Figure 3 , the backlight LED plate 32 is fixed in the receiving groove 341 in a vertical distribution, so that the light generated by the LED lamp is horizontally emitted into the light guide 31 through the mounting shell 34.

[0034] In some specific embodiments, referring to Figure 2 , Figure 3 , Figure 5 and Figure 6 , the light guide 31 and the mounting shell 34 are clamped and fixed by the upper cover 2 and the bottom cover 1.

[0035] In some specific embodiments, referring to Figures 1-6 , the upper cover 2 is connected to the bottom cover 1 by a buckle structure, and a plurality of screws 7 are arranged between the bottom cover 1 and the upper cover 2. The lower part of the outer peripheral side wall of the upper cover 2 is connected to the upper part of the outer peripheral side wall of the bottom cover 1 by a stop structure, further improving the dustproof effect between the upper cover and the bottom cover.

[0036] In some specific embodiments, referring to Figure 3 , Figure 5 and Figure 6 , the light guide 31 is provided with a positioning protrusion 313 at one end close to the mounting shell 34, and the mounting shell 34 is provided with a positioning groove 342 at one end close to the light guide 31, which is matched with the positioning protrusion 313. In this way, after the light guide and the mounting shell are installed in place, the positioning protrusion on the light guide is inserted into the positioning groove on the mounting shell, which is beneficial to the light generated by the LED lamp being emitted into the light guide through the mounting shell, and also better maintains the contact and conduction of the light between the light guide and the mounting shell.

[0037] As an improved embodiment, referring to Figure 3 , the receiving groove 341 is filled with sealing glue 35 covering the backlight LED plate 32. In this way, by filling the sealing glue in the receiving groove to completely seal the backlight LED plate, the waterproof performance of the backlight LED plate can be improved, and the wires on the backlight LED plate can be prevented from being loosened due to external force.

[0038] In some specific embodiments, referring to Figure 2 , Figure 3 , Figure 5 andFigure 6 The upper cover 2 is integrally injection molded by the light-transmissive upper cover panel 21 and the non-light-transmissive upper cover body 22, and the light guide channel 221 is formed by the upper cover body 22. By integrally injection molding the materials with different light-transmissive properties, the light guide channel is directly formed on the upper cover body, and the remaining part of the upper cover body is non-light-transmissive, so that the light can be concentrated to illuminate the identification characters. In addition, the upper cover panel of the upper cover integrally injection molded can also cover the light guide channel, which not only has the effect of dustproof and waterproof, but also has a relatively flat appearance visual effect.

[0039] Embodiment 2

[0040] Reference Figures 1-6 The embodiment further provides a vehicle door opening switch, which comprises the key 4, the vehicle door switch 5, and the light guide structure for character illumination in the embodiment 1. The upper cover 2 is recessed with a key assembly slot 222 for mounting the key 4. The bottom wall of the key assembly slot 222 is provided with a through opening 223. The lower part of the through opening 223 is provided with a master control circuit board 6 electrically connected with the backlight LED board 32. The vehicle door switch 5 is mounted on the upper surface of the master control circuit board 6. The bottom of the key 4 is provided with a pressing portion 41 for abutting and pressing the vehicle door switch 5. The key is movably mounted by the key assembly slot in the upper cover. The vehicle door switch can be triggered by the pressing portion through pressing the key, so that the vehicle door can be automatically opened or closed.

[0041] The above embodiments only exemplarily illustrate the concept and technical scheme of the utility model, and are not used for limiting the utility model. Any person skilled in the art can modify or change the above embodiments without departing from the spirit and category of the utility model. Therefore, all equivalent modifications or changes completed by those skilled in the art without departing from the spirit and technical thought disclosed by the utility model should be covered by the claims of the utility model.

[0042] In addition, it should be understood that although the present specification is described in terms of embodiments, not every embodiment contains only one independent technical scheme, and the description manner of the specification is only for the sake of clarity, and the person skilled in the art should consider the specification as a whole, and the technical scheme in each embodiment can be properly combined to form other embodiments which can be understood by the person skilled in the art.

Claims

1. A light guide structure for character illumination comprising a bottom cover and a top cover connected together, characterized in that, The upper cover is provided with a light guide channel, and a surface of the upper cover is provided with an identification character corresponding to the light guide channel; a back light indicating lamp emitting light towards the identification character is arranged between the upper cover and the bottom cover, the back light indicating lamp comprises a light guide piece and a back light LED plate, the light guide piece is horizontally distributed below the light guide channel, a lower part of the light guide piece is provided with a plurality of sawtooth structures, the back light LED plate is located at one end of the light guide piece, and a side surface of the back light LED plate close to the light guide piece is provided with an LED lamp emitting light towards the light guide piece.

2. The light guide structure for character illumination according to claim 1, wherein, A side surface of the light guide piece close to the light guide channel is a plane structure, and a side surface of the light guide piece away from the light guide channel is provided with the sawtooth structure.

3. The light guide structure for character illumination according to claim 2, wherein, The thickness of the end of the light guide piece close to the LED lamp is greater than the thickness of the end of the light guide piece away from the LED lamp.

4. The light guide structure for character illumination according to claim 3, wherein, The thickness of the light guide piece gradually decreases from the end close to the LED lamp to the end away from the LED lamp.

5. The light guide structure for character illumination according to claim 1, wherein, A mounting shell is arranged between the upper cover and the bottom cover, one end of the mounting shell is connected with the light guide piece, and the other end of the mounting shell is provided with a containing groove for mounting the back light LED plate.

6. The light guide structure for character illumination according to claim 5, wherein, The light guide piece and the mounting shell are clamped and fixed by the upper cover and the bottom cover.

7. The light guide structure for character illumination according to claim 5, wherein The end of the light guide piece close to the mounting shell is provided with a positioning protrusion, and the end of the mounting shell close to the light guide piece is provided with a positioning groove matched with the positioning protrusion.

8. The light guide structure for character illumination according to claim 5, wherein, The containing groove is filled with sealing glue covering the back light LED plate.

9. The light guide structure for character illumination according to claim 1, wherein, The upper cover is integrally injection molded by a light-transmitting upper cover panel and a non-light-transmitting upper cover body, and the light guide channel is formed by the upper cover body.

10. A door opening switch characterized by comprising: The light guide structure for character lighting comprises a key, a door switch and any one of the light guide structures for character lighting according to claims 1-9, the upper cover is provided with a key assembly groove for mounting the key, a through port is arranged on a bottom wall of the key assembly groove, a main control circuit board electrically connected with the back light LED plate is arranged below the through port, the door switch is mounted on an upper surface of the main control circuit board, and a pressing portion for abutting and pressing the door switch is arranged on a bottom of the key.

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