Full-protection signal lamp

Abstract

The full-protection signal lamp comprises a lamp holder (1), a lampshade (6) is installed on the top of the lamp holder (1), and a light-emitting body (3) on a circuit board (2) in the lamp holder (1) directly faces the lampshade (6). The circuit board (2) is arranged on the lamp holder (1), a voltage reduction capacitor (2.1) is arranged on the circuit board (2), at least one guide slot (1.1) is vertically arranged on the inner wall of the lamp holder (1), the circuit board (2) which is vertically inserted into the lamp holder (1) along the guide slot (1.1) deviates from the central axis of the lamp holder, the voltage reduction capacitor (2.1) is positioned in a cavity on one side of the lamp holder (1), which is provided with the central axis, and the luminous body (3) is arranged at the top of the circuit board (2). The full-protection signal lamp provided by the utility model has the design characteristic of a miniaturized structure, and has better protection (waterproof and dustproof) level capability which is realized at low cost.

Description

Technical Field

[0001] The utility model relates to a signal lamp for instruments and equipment, in particular to a signal lamp with a miniaturized structure and a waterproof function, belonging to the technical field of instrument and meter supporting equipment. Background Art

[0002] At present, signal lights are common indicator devices on instrument panels, etc. Their installation methods are the same as those disclosed in Chinese patents CN201521007484.9 "An explosion-proof indicator light device" and CN201410382655.X "Indicator light instrument assembly". They are fixed to the surface of the instrument panel, etc. through the step structure and external thread structure at the top of the shell, or installed on the surface of the instrument panel, etc. through a bracket, which is very convenient to use. However, the design of the base and the lamp holder separated from each other in the above CN201521007484.9 "An explosion-proof indicator light device" is not convenient for installation, nor is it conducive to the miniaturization of the lamp body. In the CN201410382655.X "Indicator light instrument assembly", the step-down capacitor is considered to be large in size, and the diameter of the circuit board can only be increased synchronously, resulting in a larger lamp body diameter, which requires more disk space, and is not conducive to installing more signal lights on the limited disk space; at the same time, the waterproof performance of the CN201410382655.X "Indicator light instrument assembly" is not mentioned, but based on its lamp holder shell structure without heat dissipation holes and the larger lamp holder diameter, it can be seen that it uses a step-down capacitor to reduce heat dissipation after stepping down (its conventional circuit is as follows Figure 3 As shown in the figure), the lamp holder without heat dissipation hole design has waterproof capability; while the protection performance of CN201521007484.9 “An explosion-proof indicator light device” is relatively high, it realizes waterproof function by epoxy resin packaging, which is costly and has low manufacturing efficiency. Therefore, a signal light structure that can solve the above problems is urgently needed. Summary of the invention

[0003] The purpose of the utility model is to overcome the above-mentioned shortcomings and provide a full-protection signal lamp, which has the characteristics of miniaturized structural design and has a relatively good protection (waterproof and dustproof) level capability achieved at low cost.

[0004] The purpose of the utility model is achieved in this way:

[0005] A fully protected signal lamp comprises a lamp holder, a lampshade is installed on the top of the lamp holder, a light emitter on a circuit board in the lamp holder faces the lampshade; a step-down capacitor is arranged on the circuit board, at least one guide slot is vertically arranged on the inner wall of the lamp holder, the circuit board vertically inserted into the lamp holder along the guide slot deviates from the central axis of the lamp holder, the step-down capacitor is located in a cavity on one side of the central axis of the lamp holder, and the light emitter is installed on the top of the circuit board.

[0006] Preferably, the reflective bowl is installed between the lampshade and the lamp holder, and when the lampshade is rotated onto the lamp holder, the lampshade presses the outer edge of the reflective bowl onto the lamp holder, and the lampshade and the lamp holder clamp a sealing ring.

[0007] Preferably, a pressure ring connected to the bottom of the reflective bowl is provided with a vertical limiting groove, and the top of the circuit board is inserted into the limiting groove.

[0008] Preferably, a waterproof plug is embedded in the bottom of the lamp holder, and the waterproof plug is sleeved on the lead-out wire of the circuit board.

[0009] Preferably, the lampshade and the lamp holder are in waterproof contact with each other through a step surface.

[0010] Preferably, the lampshade and the outer edge of the reflective bowl are in waterproof contact via a step surface.

[0011] Compared with the prior art, the beneficial effects of the utility model are:

[0012] After the utility model places the circuit board vertically in the lamp holder, the large capacitor attached to the circuit board is in a vertical state, occupies the vertical space, and thus reduces the diameter of the lamp holder.

[0013] In addition, the installation guide slot in the lamp holder is arranged obliquely in the slot, or the circuit board is restricted by two eccentrically arranged guide slots (that is, the plane where the two guide slots are located does not pass through the central axis of the lamp holder), so that the inserted circuit board is eccentrically arranged (that is, the circuit board is not on the plane where the central axis of the lamp holder is located). At this time, the large capacitor is located on the side of the larger space, which ensures the installation space of the large capacitor and is conducive to reducing the diameter of the lamp holder as much as possible.

[0014] At the same time, the vertically arranged circuit board also becomes a support for the light-emitting body. At this time, no additional structural parts are needed to support the light-emitting body. After the light-emitting body is fixed by the circuit board, it emits light smoothly through the reflective bowl.

[0015] Finally, the waterproof performance is improved by arranging a sealing ring between the lampshade and the lamp holder and leading out the connecting wire through a waterproof plunger at the bottom of the lamp holder, which has low cost and is easy to assemble.

[0016] To sum up, this patent is based on the premise of miniaturized design. While ensuring the waterproof and dustproof protection performance, it also achieves low-cost production and manufacturing, which is conducive to improving its market competitiveness. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 The utility model is a schematic diagram of an explosion of a full-protection signal light.

[0018] Figure 2 The utility model is a cross-sectional view of a full-protection signal lamp.

[0019] Figure 3 This is a schematic diagram of a step-down circuit.

[0020] in:

[0021] Lamp holder 1, circuit board 2, luminous body 3, reflective bowl 4, sealing ring 5, lampshade 6, waterproof plug 7;

[0022] Guide slot 1.1, mounting shoulder 1.2, internal thread 1.3, mounting thread 1.4;

[0023] Step-down capacitor 2.1;

[0024] Pressing ring 4.1, limiting groove 4.2;

[0025] External thread 6.1, fixing ring 6.2. DETAILED DESCRIPTION

[0026] See also Figure 1 The utility model relates to a fully protected signal lamp, comprising a lamp holder 1, the top of the outer wall of the lamp holder 1 is provided with a mounting thread 1.4 for installation, the head of the lamp holder 1 is provided with a lampshade 6, the light emitting body 3 in the lamp holder 1 is directly facing the lampshade 6; and the working voltage of the light emitting body 3 is reduced by a step-down capacitor 2.1 provided on a circuit board 2 in the lamp holder 1 (circuit as shown in FIG. Figure 3 As shown), thereby reducing heat dissipation, specifically:

[0027] At least one guide slot 1.1 is vertically arranged on the inner wall of the lamp holder 1, and the circuit board 2 vertically inserted into the lamp holder 1 along the guide slot 1.1 deviates from the central axis of the lamp holder, and the step-down capacitor 2.1 on the circuit board 2 is located in a cavity on one side of the central axis of the lamp holder 1; the vertically arranged circuit board 2 makes use of the vertical space of the lamp holder 1 to accommodate the capacitor 2.1, thereby effectively reducing the diameter of the lamp holder 1, which is beneficial for installing more indicator lights on the effective disk space when it is installed on an instrument, etc.

[0028] Preferably, when one guide slot 1.1 is provided, the inner wall of the guide slot 1.1 is provided as a sloped structure, so that the inserted circuit board 2 can be conveniently arranged along the central axis of the lamp holder 1 along the inclined inner wall of the slot; or, when two guide slots 1.1 are provided, the plane where the two guide slots 1.1 are located deviates from the central axis of the lamp holder 1, so that the inserted circuit board 2 can naturally deviate from the central axis of the lamp holder 1.

[0029] At the same time, an internal thread 1.3 matching the external thread 6.1 on the outer wall of the lampshade 6 is provided on the inner wall of the mounting shoulder 1.2 of the barrel-shaped structure at the top of the lamp holder 1, and a light-emitting body 3 is installed on the top of the above-mentioned circuit board 2, and the light-emitting body 3 is inserted into the central hole of the reflective bowl 4, and the reflective bowl 4 is located between the lampshade 6 and the mounting shoulder 1.2; and a pressing ring 4.1 is connected to the bottom of the reflective bowl 4, and the pressing ring 4.1 has two vertical limiting grooves 4.2, and the top of the circuit board 2 is inserted into the limiting grooves 4.2, thereby limiting the reflective bowl 4 and preventing it from rotating; at the same time, in order to further press the reflective bowl 4, the bottom of the lampshade 6 is a fixing ring 6.2 of an annular structure, and the above-mentioned external thread 6.1 is provided on the outer ring surface of the fixing ring 6.2. When the lampshade 6 is screwed onto the internal thread 1.3 through the external thread 6.1, the fixing ring 6.2 presses the outer edge of the reflective bowl 4 on the bottom surface of the mounting shoulder 1.2 of the barrel-shaped structure, thereby fixing the reflective bowl 4. A sealing ring 5 is sandwiched between the bottom surface of the mounting shoulder 1.2 and the fixing ring 6.2 to further achieve a waterproof effect. Preferably, the fixing ring 6.2 and the lampshade 6 form a step surface structure that cooperates with the top of the mounting shoulder 1.2 to form a step, thereby improving the waterproof and dustproof capabilities; similarly, a step surface structure is provided around the outer edge of the reflector bowl 4 to cooperate with the inner side of the bottom of the fixing ring 6.2 to further improve the waterproof and dustproof protection capabilities.

[0030] Finally, a waterproof plug 7 is embedded at the bottom of the lamp holder 1. The waterproof plug 7 can support the circuit board 2. Secondly, the waterproof plug 7 is mounted on the lead wire of the circuit board 2, thereby playing a waterproof and dustproof role, avoiding protection defects in the process of the lead wire passing through the bottom hole of the lamp holder 1. Therefore, through multiple designs, the waterproof and dustproof capabilities are greatly improved.

[0031] In addition: It should be noted that the above specific implementation is only an optimization scheme of this patent. Any changes or improvements made by technicians in this field based on the above concept are within the scope of protection of this patent.

Claims

1. A fully protected signal lamp, comprising a lamp holder (1), a lamp shade (6) being mounted on the top of the lamp holder (1), a light emitter (3) on a circuit board (2) in the lamp holder (1) facing the lamp shade (6); and a step-down capacitor (2.1) being arranged on the circuit board (2), characterized in that: At least one guide slot (1.1) is vertically arranged on the inner wall of the lamp holder (1); a circuit board (2) vertically inserted into the lamp holder (1) along the guide slot (1.1) deviates from the central axis of the lamp holder; the step-down capacitor (2.1) is located in a cavity on one side of the central axis of the lamp holder (1); and the light-emitting body (3) is mounted on the top of the circuit board (2).

2. A fully protected signal light according to claim 1, characterized in that: The reflective bowl (4) is installed between the lampshade (6) and the lamp holder (1), and when the lampshade (6) is rotated onto the lamp holder (1), the lampshade (6) presses the outer edge of the reflective bowl (4) onto the lamp holder (1), and the lampshade (6) and the lamp holder (1) clamp a sealing ring (5).

3. A fully protected signal light according to claim 2, characterized in that: A vertical limiting groove (4.2) is formed on the pressure ring (4.1) connected to the bottom of the reflective bowl (4), and the top of the circuit board (2) is inserted into the limiting groove (4.2).

4. A fully protected signal light according to claim 1, characterized in that: A waterproof plug (7) is embedded in the bottom of the lamp holder (1), and the waterproof plug (7) is sleeved on the lead wire of the circuit board (2).

5. A fully protected signal lamp according to claim 1 or 2, characterized in that: The lampshade (6) and the lamp holder (1) are in waterproof matching contact via a step surface.

6. A fully protected signal light according to claim 2, characterized in that: The lampshade (6) and the outer edge of the reflective bowl (4) are in waterproof matching contact via a step surface.

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