CN108269510A - L ED acrylic luminous character and manufacturing method thereof - Google Patents

Abstract

the invention discloses an L ED acrylic luminous character which comprises a character structure, a luminous structure, a moistureproof structure, a heat dissipation structure, an acrylic light-transmitting structure and a moistureproof structure, wherein the character structure comprises a metal character shell and a bottom plate, the luminous structure comprises a first L ED lamp module and a second L ED lamp module, the moistureproof structure comprises a moistureproof plate and elliptical silica gel particles, the heat dissipation structure comprises a control switch, a temperature tester and a controller, the acrylic light-transmitting structure is sealed and plugged in the other opening of the metal character shell, the invention also discloses a manufacturing method of the L ED acrylic luminous character, the manufacturing method comprises the steps of manufacturing the metal character shell, constructing the luminous structure, fixing the luminous structure on the inner plate surface of the bottom plate, fixing the bottom plate on the metal character shell, constructing the moistureproof structure and placing the moistureproof structure in a containing cavity of the metal character shell, and constructing the acrylic light-transmitting structure and plugging the metal character shell.

Description

A kind of LED acrylic luminous character and its manufacturing method

technical field

The invention relates to the technical field of luminous characters, and more specifically, the invention relates to an LED acrylic luminous character. The invention also relates to a method for making LED acrylic luminous characters.

Background technique

Acrylic luminous characters are composed of three parts: acrylic panel, luminous character box and luminous character light source. Acrylic material has excellent toughness and good light transmittance. It was used in the manufacture of aircraft and tank glass in the early days. The surface of modern acrylic material is coated with high-strength ultraviolet absorbers and has colorful colors. It is colorful at night and has a Penetrating power, anti-sun and rain, service life up to ten years, is currently one of the most popular materials for making outdoor signs in the world. In the bustling business districts of international metropolises such as Paris, New York, and Tokyo, the beautiful figures of acrylic logos can be seen everywhere, adding infinite charm to the brand images of countless internationally renowned companies.

Acrylic luminous characters include flat acrylic luminous characters, blister acrylic luminous characters, stainless steel acrylic luminous characters, whole body luminous acrylic luminous characters, aluminum edge acrylic luminous characters, mini acrylic engraved luminous characters. The panel of flat acrylic luminous characters is flat acrylic, with metal borders, the front is illuminated, and the side is not illuminated. It is also the most common one. The blister acrylic luminous characters are metal surrounds, the panel is an acrylic blister mask, the front is illuminated, and the side is not illuminated. Stainless steel acrylic luminous characters are surrounded by stainless steel, the acrylic panel is light-transmitting, and the sides are not luminous. The whole body luminous acrylic luminous characters are made of acrylic around the sides and panels to achieve the effect of luminous front and side. The acrylic light-emitting characters with aluminum edge are made of aluminum material for the character border, the acrylic panel is light-transmitting, and the side is not luminous. Mini acrylic engraved luminous characters are generally made into mini Seiko characters, and pressure plate engravings are made with built-in LED light sources. The light source of acrylic luminous characters is LED patch module. LED luminous characters are the mainstream of current luminous characters, because the biggest advantages of LED light sources are energy saving, low durability and maintenance rate, and wide application range.

After using acrylic luminous characters for a period of time, the local or the entire font light source begins to flicker, sometimes on and off, until completely off. Most of the light-emitting modules sold in the market are connected by plug-in wires, which realizes the advantages of convenient and quick installation of light-emitting modules, but the connectors are easily oxidized by the moisture in the air during long-term use, resulting in poor contact. , so that part or all of the circuit is powered off instantaneously or completely, causing the font light source to flicker or not light up. At the same time, there is a problem of heat dissipation of the LED lamp module.

Contents of the invention

It is an object of the present invention to solve at least the above-mentioned problems and to provide at least the advantages which will be described later.

Another object of the present invention is to provide an LED acrylic luminous letter, which solves the problem of moisture-proof and heat dissipation of the LED lamp module, avoids the phenomenon that the light source of the luminous letter flickers or does not light up due to the moisture problem, and greatly prolongs the use. life, and at the same time achieve a uniform luminous effect.

Another object of the present invention is to provide a method for manufacturing LED acrylic luminous characters, which has the advantages of simple process, improves production efficiency, and ensures the aesthetics of luminous characters.

In order to achieve the above purpose, the present invention provides an LED acrylic luminous letter, including:

The font structure includes a metal letter case and a bottom plate that blocks one of the openings of the metal letter case, the edges of the metal letter case are bent inward to form an edge structure, and the edge structure is fixed on the outer plate of the bottom plate noodle;

A light-emitting structure, which is fixed on the inner surface of the bottom plate, and the light-emitting structure includes a first LED lamp module composed of a plurality of first LED lamps connected in series and a first LED lamp module composed of a plurality of second LED lamps connected in series The second LED lamp module, the first LED lamp module and the second LED lamp module are connected in series, the plurality of first LED lamps and the plurality of second LED lamps are all covered with the bottom plate The inner panel surface of the bottom panel, and the first LED lamp and the second LED lamp are arranged at intervals on the inner panel surface of the bottom panel;

A moisture-proof structure, which is fixed in the housing cavity of the metal letter case, the moisture-proof structure includes a moisture-proof plate with several limit holes and a moisture-proof plate that is respectively clamped in the several limit holes and the two ends extend out of the Elliptical silica gel particles for the above-mentioned limiting holes;

The heat dissipation structure includes a control switch connected in parallel with the first LED lamp module, a temperature tester installed on the inner surface of the bottom plate and detecting the temperature in the space formed by the moisture-proof board and the bottom plate in real time, and according to the The temperature signal of the temperature tester controls the controller for opening and closing the control switch;

An acrylic light-transmitting structure, which blocks another opening of the metal letter case, the acrylic light-transmitting structure includes an acrylic plate, a light-guiding layer coated on the outer surface of the acrylic plate, and a light-guiding layer coated on the outer surface of the acrylic plate. The color layer on the outer surface of the light layer and the protective layer coated on the outer surface of the color layer.

Preferably, for the LED acrylic luminous characters, the controller controls the opening of the control switch according to the temperature around the light-emitting structure detected by the temperature tester in real time, specifically:

When the temperature around the light-emitting structure detected by the temperature tester is not less than 55°C, the controller controls the control switch to be turned off, so as to disconnect the first LED lamp module from the power supply;

When the temperature around the light-emitting structure detected by the temperature tester is less than 55°C, the controller controls the control switch to turn on, so as to simultaneously turn on the first LED lamp module and the second LED lamp The module is connected to the power supply.

Preferably, for the LED acrylic luminous characters, the light guide layer is an epoxy resin layer with light guide white; the color layer is an epoxy resin layer with black particles; the protective layer is transparent Epoxy layer.

Preferably, in the LED acrylic letter, the thickness of the light guide layer, the thickness of the color layer and the thickness of the protective layer are all the same.

Preferably, in the LED acrylic luminous characters, the extension length of the wrapping structure is 0.5-2.0 cm.

The invention also discloses a method for making LED acrylic luminous characters, which includes the following steps:

Step 1. Cut a certain length of metal strip with the size of the luminous characters, and use the edge bending machine to bend the edge of the cut metal strip to form a hemming structure, and then use the edge bending machine to bend the metal strip The two ends are welded to form a metal letter shell with a cylindrical structure with two ends open;

Step 2. Connect a plurality of first LED lamps to a power supply in series to form a first LED lamp module, and connect the control switch to the first LED lamp module in parallel; connect a plurality of second LED lamps to a power supply in series to form a forming a second LED lamp module; then connecting the first LED lamp module connected in parallel with the control switch to the second LED lamp module in series to form a light-emitting structure;

Step 3: Use an engraving machine to carve the base plate, moisture-proof board and acrylic plate according to the outline and size of the luminous characters, and bond the luminous structure and temperature tester to the inner surface of the base plate, and attach the temperature tester and The control switch is signal-connected to the controller, and the bottom plate bonded with the light-emitting structure is bonded to the opening of the metal letter case with the wrapping structure, and the wrapping structure contacts the outer surface of the bottom plate;

Step 4: Open several limit holes on the surface of the moisture-proof board, and stick several elliptical silica gel particles into the several limit holes respectively, and place the moisture-proof The plate is fixed in the accommodation cavity of the metal letter case;

Step 5: Coating a light guide layer, a color layer and a protective layer on the outer surface of the acrylic board in sequence, and bonding the coated acrylic board to another opening of the metal letter case.

The present invention at least includes the following beneficial effects:

1. The LED acrylic luminous characters provided by the present invention bend the edge of the metal character shell, and fix the bottom plate on the bent edge, so as to avoid gaps at the connection between the bottom plate and the metal character shell, so as to avoid the influence of moisture , and a moisture-proof board and elliptical silica gel particles are arranged around the light-emitting structure, which realizes the effect of moisture-proof and drying the environment around the light-emitting structure, and avoids the phenomenon that the LED light module does not light up.

2. The LED acrylic light-emitting characters provided by the present invention can adjust whether the first LED light module and the second LED light module are turned on at the same time through the controller according to the temperature around the light-emitting structure detected by the temperature tester. When the temperature around the light-emitting structure exceeds a certain When the temperature is high, the controller adjusts the control switch to close, so that the first LED light module is short-circuited, and only the second LED light module is turned on, so as to reduce the number of LED lights turned on and prolong the luminous The lifespan of the word.

3. The preparation method of the LED acrylic luminous characters provided by the present invention has the advantages of simple process and fast production speed, and meets the demand for the use of LED acrylic luminous characters in today's society.

Other advantages, objectives and features of the present invention will partly be embodied through the following descriptions, and partly will be understood by those skilled in the art through the study and practice of the present invention.

Description of drawings

Fig. 1 is a schematic structural view of the LED acrylic luminous characters of the present invention.

Detailed ways

The present invention will be described in further detail below in conjunction with the accompanying drawings and embodiments, so that those skilled in the art can implement it with reference to the description.

It should be understood that terms such as "having", "comprising" and "including" used herein do not exclude the presence or addition of one or more other elements or combinations thereof.

As shown in Figure 1, the present invention discloses an LED acrylic luminous character, including:

A font structure, which includes a metal letter case 1 and a bottom plate 2 that blocks one of the openings of the metal letter case. The edge of the metal letter case 1 is bent inward to form a hemming structure, and the hemming structure is fixed on the bottom plate 2 of the outer panel surface; for example, the extension length of the hemming structure is 0.5-2.0 cm.

A light-emitting structure, which is fixed on the inner surface of the bottom plate 2, and the light-emitting structure includes a first LED lamp module composed of a plurality of first LED lamps 3 connected in series and a plurality of second LED lamps connected in series A second LED lamp module composed of 4, the first LED lamp module and the second LED lamp module are connected in series, the plurality of first LED lamps 3 and the plurality of second LED lamps 4 are all The inner surface of the base plate 2 is covered, and the first LED lamp 3 and the second LED lamp 4 are arranged at intervals on the inner plate surface of the base plate 2; the power of the first LED lamp 3 and the power of the second LED The power of the lamps 4 is the same or different;

Moisture-proof structure, which is fixed in the housing cavity of the metal letter case 1, the moisture-proof structure includes a moisture-proof plate 5 with several limit holes and is respectively clamped in the several limit holes with two ends extending Elliptical silica gel particles 6 out of the limiting holes;

Heat dissipation structure, which includes a control switch connected in parallel with the first LED lamp module, a temperature tester installed on the inner surface of the bottom plate 2 and detecting the temperature in the space formed by the moisture-proof board 5 and the bottom plate 2 in real time 11 and a controller that controls the opening and closing of the control switch according to the temperature signal of the temperature tester 11;

Acrylic light-transmitting structure, which blocks another opening of the metal letter case 1, the acrylic light-transmitting structure includes an acrylic plate 7, a light guide layer 8 coated on the outer surface of the acrylic plate 7, a coating The color layer 9 on the outer surface of the light guide layer 8 and the protective layer 10 coated on the outer surface of the color layer 9 .

In the present invention, the controller controls the opening of the control switch according to the temperature around the light-emitting structure detected by the temperature tester 11 in real time, specifically:

When the temperature around the light-emitting structure detected by the temperature tester 11 is not less than 55°C, the controller controls the control switch to be turned off, so as to disconnect the first LED lamp module from the power supply;

When the temperature around the light-emitting structure detected by the temperature tester 11 is less than 55°C, the controller controls the control switch to be turned on to simultaneously turn on the first LED lamp module and the second LED lamp module. LED light module.

Most a preferred embodiment of the present invention, light guiding layer 8 among the present invention is the epoxy resin layer that has light guiding white; Color layer 9 is the epoxy resin layer that has black particle; Protective layer 10 is transparent ring Oxygen layer. And adjust the thickness of each layer, for example, the thickness of the light guide layer 8, the thickness of the color layer 9 and the protective layer 10 are the same, for example, they are all 3.5mm. The black particles are 0.05mm in diameter.

The invention also discloses a method for making LED acrylic luminous characters, which includes the following steps:

Step 1. Cut a certain length of metal strip with the size of the luminous characters, and use the edge bending machine to bend the edge of the cut metal strip to form a hemming structure, and then use the edge bending machine to bend the metal strip into a metal letter case 1;

Step 2: Connect multiple first LED lamps 3 in series with the power supply to form a first LED lamp module, connect the control switch in parallel with the first LED lamp module; connect multiple second LED lamps 4 in series with the power supply , to form a second LED lamp module; then connect the first LED lamp module connected in parallel with the second LED lamp module in series to form a light-emitting structure;

Step 3: Use an engraving machine to carve the bottom plate 2, the moisture-proof plate 5 and the acrylic plate 7 according to the outline and size of the luminous characters, and glue the light-emitting structure and the temperature tester 11 to the inner surface of the bottom plate 2 with glue, The temperature tester 11 and the control switch are connected to the controller signal, and the bottom plate 2 bonded with the light-emitting structure is bonded to the end of the metal letter case 1 with the hemming structure by using glue or combining glass glue at the same time, and the The wrapping structure contacts the outer surface of the bottom plate 2;

Step 4: Open several limiting holes on the surface of the moisture-proof board 5, and stick several elliptical silica gel particles 6 into the plurality of limiting holes respectively, and place the oval silica gel particles The moisture-proof plate 5 of 6 is fixed in the accommodation cavity of the metal letter case 1;

Step 5: Coating light guide layer 8, color layer 9 and protective layer 10 on the outer surface of the acrylic plate 7 in sequence, and bonding the coated acrylic plate 7 to the open end of the metal letter case 1 . The controller can be placed on the inner surface of the bottom plate 2 or outside the entire luminous characters.

When the LED acrylic light-emitting characters provided by the present invention are working, the power supply provides electric energy to the first LED lamp module and the second LED lamp module, and the multiple first LED lamps 3 and the multiple second LED lamps 4 are turned on at the same time, and the temperature The tester 11 detects the temperature around the light-emitting structure in real time. When the temperature exceeds 55° C., the controller controls the control switch to close to disconnect the first LED lamp module from the power supply, thereby extinguishing multiple first LED lamps 3 . A second LED lamp 4 works normally, thereby reducing the number of LED lamps. Since a plurality of second LED lamps 4 are evenly distributed on the inner surface of the base plate 2, the normal luminescence of the luminous characters can also be realized, but the luminescence is weakened. Strength, in order to increase the heat dissipation effect, the metal letter case 1 and the bottom plate 2 are all metal materials with good heat dissipation effect and good heat conduction effect. When the temperature around the light-emitting structure decreases to less than 55°C, the controller controls the control switch to turn on, thereby turning on the plurality of first LED lamps 3 of the first LED lamp module, improving the overall brightness of the luminous characters.

Although the embodiment of the present invention has been disclosed as above, it is not limited to the use listed in the specification and implementation, it can be applied to various fields suitable for the present invention, and it can be easily understood by those skilled in the art Therefore, the invention is not limited to the specific details and examples shown and described herein without departing from the general concept defined by the claims and their equivalents.

Claims (6)

1. a kind of LED acrylics luminescent characters, which is characterized in that including：

Font architecture including metal word shell and blocks the one of bottom plate being open of the metal word shell, the metal word shell Edge bend inwards to form binding structure, which is fixed on the outer plate surface of the bottom plate；

Light emitting structure, is fixed on the inner plate surface of the bottom plate, and the light emitting structure is included by multiple the first LED being connected in series with Lamp group into the first LED light module and the second LED light module for being made of multiple the second LED light being connected in series with, described first LED light module and the second LED light module are connected in series with, and the multiple first LED light and the multiple second LED light are evenly distributed with The inner plate surface of the full bottom plate, and first LED light and second LED light are laid in the inner panel face interval of the bottom plate；

Moisture-proof construction is fixed in the accommodating chamber of the metal word shell, and the moisture-proof construction includes offering several limitings It the moist-proof board in hole and is fastened on respectively in several described limit holes and the ellipticity silica gel of the limit hole is extended at both ends Grain；

Radiator structure, the control including being connect with the first LED light modules in parallel switch, are arranged on the bottom plate inner plate surface And the moist-proof board is detected in real time with the temperature measuring device in the space of bottom plate formation and according to the temperature measuring device Temperature signal control it is described control switch open and close controller；

Acrylic translucent construction, blocks another opening in the metal word shell, and the acrylic translucent construction includes Acrylic board, the optical waveguide layer coated in the acrylic board outer plate surface, the color layers coated in the optical waveguide layer outer surface and Protective layer coated in the color layers outer surface.

2. a kind of LED acrylics luminescent characters according to claim 1, which is characterized in that the controller is according to the temperature The temperature control control around the light emitting structure that degree tester detects in real time switches on, specially：

When temperature around the light emitting structure that the temperature measuring device detects is not less than 55 DEG C, the controller control The control switch is closed, to disconnect the connection of the first LED light module and power supply；

When temperature around the light emitting structure that the temperature measuring device detects is less than 55 DEG C, the controller controls institute It states control switch to open, simultaneously to connect the first LED light module and the second LED light module with power supply.

3. a kind of LED acrylics luminescent characters according to claim 1, which is characterized in that the optical waveguide layer is with leaded light White epoxy resin layer；The color layers are the epoxy resin layer with black particle；The protective layer is transparent epoxy resin Layer.

4. a kind of LED acrylics luminescent characters according to claim 1, which is characterized in that the thickness of the optical waveguide layer, described The thickness all same of the thickness of color layers and the protective layer.

5. a kind of LED acrylics luminescent characters according to right will go 1, which is characterized in that the extension of the binding structure is grown It spends for 0.5~2.0cm.

A kind of 6. production method according to Claims 1 to 5 any one of them LED acrylic luminescent characters, which is characterized in that packet Include following steps：

Step 1: the metal strip of certain length is cut with the size of luminescent characters, and using joggling machine to the metal strip after cutting Edge is bent, and to form binding structure, reuses joggling machine and the metal strip is bent into metal word shell；

Step 2: multiple first LED light are connected in series with power supply, to form the first LED light module, by control switch and first LED light modules in parallel connects；Multiple second LED light are connected in series with power supply, to form the second LED light module；It again will be in parallel There is the first LED light module that control switchs to be connected in series with the second LED light module, to be configured to light emitting structure；

Step 3: using engraving machine according to luminous glyph and big statuette bottom plate, moist-proof board and acrylic board, and by described in Light emitting structure and temperature measuring device are bonded in the inner plate surface of the bottom plate, by the temperature measuring device and the control switch and control Device signal connection processed, the bottom plate for being bonded with light emitting structure is bonded in metal word shell has the opening of binding structure, and the packet Side structure contacts the outer plate surface of the bottom plate；

Step 4: the plate face in the moist-proof board opens up several limit holes, several ellipticity silica gel particles are blocked respectively and are set It is bonded in several described limit holes, and the moist-proof board with ellipticity silica gel particle is fixed on to the appearance of the metal word shell Receive intracavitary；

Step 5: the outer plate surface in the acrylic board coats optical waveguide layer, color layers and protective layer successively, and by the Asia after coating Gram force plate is bonded in another opening of the metal word shell.