CN201851931U

CN201851931U - Small angle lamp cup of LED (light emitting diode)

Info

Publication number: CN201851931U
Application number: CN2010205753207U
Authority: CN
Inventors: 张胜余; 张乃月
Original assignee: CHINA HELON EXPLOSION-PROOF ELECTRIC Co Ltd
Current assignee: CHINA HELON EXPLOSION-PROOF ELECTRIC Co Ltd
Priority date: 2010-10-25
Filing date: 2010-10-25
Publication date: 2011-06-01
Anticipated expiration: 2020-10-25

Abstract

The utility model relates to a lamp cup, in particular to a small angle lamp cup of an LED (light emitting diode) with an irradiation angle ranging from 50-60 degrees, which comprises at least one cup cavity used for placing an LED light source and is characterized in that the surface of the cup cavity consists of three sections of revolution surfaces, wherein a first revolution surface close to the bottom of the cup and a third revolution surface close to the mouth of the cup are linear revolution surfaces and form a reflecting surface; the middle section is a second revolution surface connected with the first revolution surface and the third revolution surface which forms a non-reflecting surface; and an included angle between the first revolution surface and the axis is more than that between the third revolution surface and the axis. The surface of the cup cavity of the small angle lamp cup adopts two sections of linear revolution surfaces with a specific angle as the reflecting surface and causes the light reflected by the two sections of linear revolution surfaces to effectively overlap and be well complementary with light directly emitted by the light source, thus ensuring the brightness balance of light in the whole irradiation area. Besides, the linear revolution surface avoids the light spotlight phenomenon and achieves uniform reflection without the glaring phenomenon. Therefore, the lamp cup is suitable for small-angle local irradiation places with the irradiation range of 50-60 degrees.

Description

LED low-angle Lamp cup

Technical field

The utility model relates to a kind of Lamp cup, and particularly a kind of irradiating angle is 50 °-60 ° a LED low-angle Lamp cup.

Background technology

In the existing explosion-proof industry, especially low-angle its curved surface of Lamp cup of LED light fixture Lamp cup commonly used adopts concave surface mostly, the light launched of led light source can form the optically focused phenomenon behind the concave reflection of reflector like this, thereby make the situation of the light and shade inequality that center brightness is big, periphery brightness is little that light fixture can shine, and glare phenomenon can appear, and the eyes susceptible that the phenomenon of this dazzle and light and shade inequality can capacity makes the operator is to tired and be easy to generate and float dry and sense of depression, thereby is unfavorable for physical and mental health, influence operating efficiency.

Summary of the invention

The purpose of this utility model is to solve existing LED low-angle Lamp cup can produce the deficiency of optically focused and glare phenomenon, and the even free from glare of a kind of LED of making light irradiation brightness is provided and makes it to guarantee the LED low-angle Lamp cup of high brightness.

The purpose of this utility model is achieved by the following technical solution: a kind of LED low-angle Lamp cup, include at least one glass chamber and be used to place a led light source, it is characterized in that: the chamber face in described cup chamber is made up of three sections surfaces of revolution, be that the straight line gyration face constitutes reflecting surface wherein near first surface of revolution at the cup end and the 3rd surface of revolution of close rim of a cup, interlude constitutes non-reflecting surface for second surface of revolution that connects first surface of revolution and the 3rd surface of revolution, and the angle of described first surface of revolution and axis is greater than the angle of the 3rd surface of revolution and axis.

Wherein the angle of first surface of revolution and axis is between 14 ° to 34 °, preferred 24 °.

The 3rd surface of revolution wherein and the angle between its axis between 0 ° to 20 °, preferred 9 °

Described Lamp cup is provided with a plurality of glasss of chambeies, this circular arrangement in a plurality of glasss of chambeies.

Described cup chamber is 3.

The chamber face in the cup chamber of LED low-angle Lamp cup of the present utility model adopts two sections straight line gyration faces of special angle as reflecting surface, the light of two sections straight line gyration faces reflection is effectively overlapped and replenish well with light that the light source direct projection goes out, thereby guarantee the equilibrium of the brightness of the light in the whole irradiation area, and the straight line gyration face the optically focused phenomenon can not occur, even reflection free from glare phenomenon, thus be suitable for low-angle local irradiation occasion between 50 °-60 ° of the ranges of exposures.

Description of drawings

Fig. 1 is a kind of structural representation of the utility model embodiment.

Fig. 2 is the A-A cutaway view of Fig. 1.

Fig. 3 is the principle of reflection figure in cup of the present utility model chamber.

Fig. 4 is the structure chart that has used the LED explosion-proof lamp of the utility model LED low-angle Lamp cup embodiment.

The specific embodiment

Now in conjunction with the accompanying drawings embodiment of the present utility model is further described:

As Figure 1-3, a kind of LED low-angle of the utility model embodiment Lamp cup, include at least one glass chamber 21 and be used to place a led light source 4, the chamber face in described cup chamber 21 is made up of three sections surfaces of revolution 211,212,213, be that the straight line gyration face constitutes reflecting surface wherein near first surface of revolution 211 at the cup end and the 3rd surface of revolution 213 of close rim of a cup, interlude constitutes non-reflecting surface 212 for second surface of revolution that connects first surface of revolution 211 and the 3rd surface of revolution 213, and the angle of described first surface of revolution 211 and axis is greater than the angle of the 3rd surface of revolution 213 with axis.The angle of first surface of revolution 211 and axis can be between 14 ° to 34 °, preferred 24 °.Angle between the 3rd surface of revolution 213 and its axis can be between 0 ° to 20 °, preferred 9 °, second surface of revolution 211 is owing to only use as connecting transition face, light source can not shine on this surface of revolution, therefore the effect that does not also just produce reflection ray, so can be the surface rotation face, also can be the straight line gyration face, adopt the direct surface of revolution in the present embodiment.

Described Lamp cup 2 is provided with 3 (or a plurality of) cup chamber, forms circular arrangement (or the combination of the display of other form).

Be to be a LED explosion-proof lamp as shown in Figure 4, three screws 5 of led light source aluminium base 3 usefulness are fixed on the housing 1, and guarantee that two planes fully contact; Three screws 6 of reflector 2 usefulness are fixed on the housing 1, guarantee that Lamp cup effectively contacts with the lamp pearl of led light source 4.

Obviously; though in conjunction with the accompanying drawings the utility model embodiment has been done detailed description; it only is preferred implementation of the present utility model that but those skilled in the art should be understood that above embodiment; and be not qualification to protection domain of the present utility model, any improvement of being done based on invention spirit of the present utility model is all naturally in the utility model protection domain.

Claims

1. LED low-angle Lamp cup, include at least one glass chamber and be used to place a led light source, it is characterized in that: the chamber face in described cup chamber is made up of three sections surfaces of revolution, be that the straight line gyration face constitutes reflecting surface wherein near first surface of revolution at the cup end and the 3rd surface of revolution of close rim of a cup, interlude constitutes non-reflecting surface for second surface of revolution that connects first surface of revolution and the 3rd surface of revolution, and the angle of described first surface of revolution and axis is greater than the angle of the 3rd surface of revolution and axis.

2. LED low-angle Lamp cup according to claim 1 is characterized in that: wherein the angle of first surface of revolution and axis is between 14 ° to 34 °.

3. LED low-angle Lamp cup according to claim 2 is characterized in that: described angle is 24 °.

4. LED low-angle Lamp cup according to claim 1 is characterized in that: the 3rd surface of revolution wherein and the angle between its axis are between 0 ° to 20 °.

5. LED low-angle Lamp cup according to claim 4 is characterized in that: described angle is 9 °.

6. LED low-angle Lamp cup according to claim 1, it is characterized in that: described Lamp cup is provided with a plurality of glasss of chambeies, this circular arrangement in a plurality of glasss of chambeies.

7. LED low-angle Lamp cup according to claim 6 is characterized in that: described cup chamber is 3.