Position indicating lamp

Abstract

The utility model discloses a position indicating lamp which adopts color filters to replace a traditional physical light insulation mode, and red and green color filters are arranged in a staggered manner to form a cross-shaped structure, so that the internal structure is simplified, and the degree of freedom of placing a light source is improved. And the shell is made of a non-transparent plastic material, and a groove corresponding to the color filter is specially formed, so that light rays are accurately filtered and uniformly irradiated. The circuit board integrates the red light source, the green light source and the pins and is embedded in the bottom of the shell. In actual work, the red light source and the green light source are lightened as required and are in a mutually vertical linear state. The position indicating lamp has a wide application prospect in the fields of aerospace, industrial automation, traffic signals and the like, and the technical effect and the practicability are both improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of indicator lights, and particularly relates to an indicator light for indicating position information. BACKGROUND

[0002] As an important tool for indicating the state or position of equipment, position indicator lights are widely used in various fields such as aerospace, industrial automation, and traffic signals. With the progress of science and technology, the technology of position indicator lights is also constantly developing. Traditional position indicator lights usually use physical light isolation to achieve different color indications. This method has a relatively complex structure, and the placement of light sources is limited by the physical structure, resulting in unsatisfactory lighting uniformity. At the same time, physical light isolation is limited by cost and process complexity, and often due to the influence of various gaps, the light isolation is not complete, causing light leakage. In addition, the aging of the physical light isolation structure during long-term use of traditional indicator lights often also leads to a decrease in light isolation effect. Therefore, users generally expect a position indicator light that is simple and reliable in structure, and can achieve better lighting uniformity and light isolation. SUMMARY

[0003] The present application relates to the technical field of indicator lights, and particularly relates to a position indicator light that is simple and reliable in structure and can achieve better lighting uniformity. In view of the problems of complex structure, limited light source placement, and unsatisfactory lighting uniformity of position indicator lights in the prior art, the present application proposes a new technical solution.

[0004] The position indicator light of the present application is characterized by using color filters instead of traditional physical light isolation. Specifically, the position indicator light includes a red color filter and a green color filter, which are cleverly embedded in the shell and placed alternately to form a "cross" structure. This design not only simplifies the internal structure of the indicator light, but also greatly improves the degree of freedom of light source placement.

[0005] The shell, as the main part of the indicator light, is made of opaque plastic material to ensure good light shielding effect. On the top surface of the shell, grooves corresponding to the red and green color filters are specially provided, so that the light emitted by the light source can be accurately filtered by the color filters and uniformly irradiated to the external environment.

[0006] In addition, the present application also embeds a circuit board at the bottom of the shell, and the circuit board integrates a red light source, a green light source, and pins for electrical connection. Through the pins, the electrical interfaces of the red and green light sources can be conveniently led out and connected with the rear-end control circuit. This design not only simplifies the electrical connection method of the indicator light, but also improves its reliability and stability.

[0007] In actual work, when the red light source is lit, the red filter transmits red light, and the green filter cannot transmit red light, so that the position indicator light realizes red illumination and presents a "one" character off state; similarly, when the green light source is lit, it presents a "one" character on state perpendicular to the red light source. The filter is a mature material, and the filtering effect is controllable and stable.

[0008] It is worth mentioning that the shell outer contour also presents a "cross" shape, which echoes the arrangement mode of the internal filter, and at the same time, the space at the four corners provides convenience for the arrangement of other devices.

[0009] In order to further improve the protection performance of the indicator light, the application also adopts a silica gel gap sealing technology to seal the gap between the circuit board and the shell. This processing method not only enhances the waterproof, dustproof and corrosion resistance of the indicator light, but also prolongs its service life.

[0010] In summary, the position indicator light of the application achieves the technical effects of simple structure, reliability and good illumination uniformity by using a filter instead of a traditional physical light shielding method. At the same time, by optimizing the design of the shell and adopting the silica gel gap sealing technology, the protection performance and reliability of the indicator light are further improved. This position indicator light has wide application prospects in the fields of aerospace, industrial automation, traffic signals and the like. BRIEF DESCRIPTION OF DRAWINGS

[0011] Figure 1 The structure cross-sectional view of the position indicator light provided in the embodiment.

[0012] Figure 2 The exploded view of the position indicator light structure.

[0013] Figure 3 The working state diagram of the position indicator light. DETAILED DESCRIPTION

[0014] In order to make the application more obvious and easy to understand, the preferred embodiment is described in detail as follows with the aid of the drawings. EMBODIMENT

[0015] The embodiment provides a position indicator light, as shown in Figure 1 The structure cross-sectional view is shown in Figure 2 The exploded view of the structure is shown in.

[0016] The shell 1 is made of opaque plastic material, and the overall outer contour presents a "cross" shape, which is not only beautiful but also convenient for installation and identification. The top surface of the shell is provided with a groove 11 corresponding to the filter, and the shape and size of the groove are matched with the filter to ensure that the filter can be stably embedded in the groove.

[0017] ‌The red filter 2 and the green filter 3 are staggered and placed to form a "cross" structure in the shell. The red filter allows only red light to pass through, and the green filter allows only green light to pass through. The material and thickness of the filter are carefully designed to ensure good color conversion effect and light transmittance.

[0018] The circuit board 4 is embedded in the bottom of the shell and closely adheres to the shell. The circuit board is provided with a red light source 42 and a green light source 41, which correspond to the positions of the red filter 2 and the green filter 3 respectively.

[0019] The circuit board is also provided with a pin 43 for leading out the electrical interface of the red light source 42 and the green light source 41 to connect with the rear-end control circuit.

[0020] In order to enhance the protection performance of the indicator light, the gap between the circuit board 4 and the shell 1 is sealed with silicone 5. Silicone has good waterproof, dustproof and corrosion-resistant performance, which can effectively protect the internal structure of the indicator light.

[0021] When the position indicator light is working, the rear-end control circuit provides power control to the red light source 42 and the green light source 41 on the circuit board through the pin 43. As shown in Figure 3 When the red light source 42 is lit, the red filter 2 transmits red light, and the green filter 3 cannot transmit red light, so the position indicator light realizes red illumination and presents a "one" character off state; similarly, when the green light source 41 is lit, it presents a "one" character on state perpendicular to the red light source 42. The filter is a mature material, and the filtering effect is controllable and stable.

[0022] ‌The position indicator light of the embodiment has the following advantages: simple and reliable structure, easy to manufacture and install; the filter is used instead of the traditional physical light shielding method, the light source has greater freedom, and better illumination uniformity is achieved; the shell has a "cross" design, which simplifies the size and provides convenience for the arrangement of other devices; the silicone sealing technology improves the protection performance and service life of the indicator light.

Claims

1. A position indicator light, characterized in that, The housing (1) includes a red filter (2) and a green filter (3) embedded in the housing (1). The red filter (2) and the green filter (3) are placed alternately to form a cross shape. The housing (1) is made of opaque plastic material and has a groove (11) on its top surface. The groove (11) corresponds to the aforementioned red filter (2) and green filter (3). The housing (1) also includes a circuit board (4) embedded in the bottom of the housing. The circuit board (4) is provided with a red light source (42), a green light source (41), and pins (43). The pins (43) lead out the electrical interfaces of the red light source (42) and the green light source (41) and connect them to the back-end control circuit.

2. A position indicator light according to claim 1, characterized in that, The outer contour of the shell (1) is in the shape of a cross.

3. A position indicator light according to claim 1, characterized in that, The circuit board (4) and the housing (1) are sealed with silicone sealant to achieve better three-proof performance.

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