CN202709041U

CN202709041U - Halogen lamp and LED lamp automatic switching device for microscope illumination

Info

Publication number: CN202709041U
Application number: CN 201220398476
Authority: CN
Inventors: 朱亚东
Original assignee: CHONGQING OYAT OPTOELECTRONIC TECHNOLOGY Co Ltd
Current assignee: CHONGQING OYAT OPTOELECTRONIC TECHNOLOGY Co Ltd
Priority date: 2012-08-13
Filing date: 2012-08-13
Publication date: 2013-01-30
Anticipated expiration: 2022-08-13

Abstract

The utility model relates to a lamp switching device for microscope illumination, in particular to a halogen lamp and LED lamp automatic switching device for microscope illumination. The halogen lamp and LED lamp automatic switching device comprises a lamp holder through which LED lamps and halogen lamps can be inserted, an input power supply of the lamp holder is controlled by a constant-voltage and constant-current automatic switching circuit module to be constant voltage or constant current, and the constant-voltage and constant-current automatic switching circuit is powered by a DC power supply; and the constant-voltage and constant-current automatic switching circuit module comprises a constant-voltage circuit module, a constant-current circuit module, an automatic switching module and a load detection and feedback module. Due to the structure, the halogen lamp and LED lamp automatic switching device has the advantages of capability of realizing a real sense of convenient interchange between the LED lamps and the halogen lamps, convenience for mounting, strong generality, no need of special machine type structure, small size, light weight and low using cost.

Description

For the Halogen lamp LED on the microscope illumination and the automatic switching control equipment of LED lamp

Technical field

The utility model relates to microscope illumination light fixture switching device shifter, specifically a kind of reduce use cost, easily change LED and halogen light source, volume is little and lightweight automatic switching control equipment for the Halogen lamp LED on the microscope illumination and LED lamp.

Technical background

The microscope illumination of prior art generally adopts Halogen lamp LED as lighting source, in use exists some shortcomings, and for example: the life-span is short, generally only has tens to arrive hundreds of individual hour, needs in the use procedure often more to change the bulb; Moreover caloric value is large, and luminous efficiency is low, and energy consumption is larger etc.

Under the LED illumination is used in people's life more and more widely, its small-power high brightness, the long-life has obtained affirming of more and more people, and microscopical illumination is no exception, and the characteristics of LED also obtain a lot of professional persons' concern.Facts have proved, one 3 watts LED lamp at the Halogen lamp LED brightness height of microscopical application than one 30 watts 50%, LED can directly obtain monochromatic light in addition, is conducive to be applied on the microscope in monochromatic requirement.And the life-span reach 50,000 hours, and the life-span of optics Halogen lamp LED generally only has 200 hours.And the caloric value of LED lamp is more much smaller than Halogen lamp LED.

But, the application of LED lamp in microscope illumination be existent defect also, the spectrum of white light LEDs is not continuous spectrum, generally be the synthetic white lights of two kinds of color light, its colour rendering index can not reach 100%, this just easily causes defect such as observing the object color deviation, so LED just has certain restriction in microscopical application, and this many times can not satisfy various professional persons' requirement.Therefore, people wish namely can use Halogen lamp LED also can use LED as microscopical illumination according to the needs of environment for use at same microscope.

According to the microscope on the market, realize that same microscope both can use Halogen lamp LED also can use LED roughly to have two kinds as the scheme of microscopical illumination, a kind of is patent US 2008/0151368A1, the disclosed microscope illumination assembly of CN 100397137C, its method is to use the different drive circuit of two-way at a microscope, drive respectively Halogen lamp LED and LED, and be to use different sockets at accessory power outlet, because in microscope, there are simultaneously two groups of drive circuits, that use cost is higher so do like this problem of existence, the versatility that is exactly in addition this mode is poor, can only use at specially designed type.Another patent is CN102116928A, the disclosed a kind of LED luminaire that can directly be used on the lamp holder of standard halogen lamp of CN201615363U, its method is after former Halogen lamp LED constant voltage output, step-up/step-down circuit and LED lamp drive circuit namely behind accessory power outlet, have been increased again, realized the driving to LED, this method is to have realized driving two kinds of light sources at same socket, but because the LED luminaire has step-up/step-down circuit and LED lamp drive circuit, manufacturing cost is too high, volume is large, weight is also large, install also inconvenient, the user can not directly directly insert microscopical lighting circuit accessory power outlet to LED, but must buy special buck and drive circuit module, can not realize the LED plug and play of just sincere justice.

In sum, the microscope illumination light source switching mechanism of prior art (namely being used for Halogen lamp LED on the microscope illumination and the switching device shifter of LED lamp) versatility is poor, manufacturing cost is high, use cost is high, volume is large, weight also large, install and use inconvenient.

Summary of the invention

For the problems referred to above, the purpose of this utility model provide a kind of reduce use cost, easily change LED and halogen light source, volume is little and lightweight automatic switching control equipment for the Halogen lamp LED on the microscope illumination and LED lamp.

For realizing that the technical scheme that the utility model purpose adopts is: a kind of automatic switching control equipment for the Halogen lamp LED on the microscope illumination and LED lamp comprises the lamp socket that can insert LED lamp or Halogen lamp LED; Wherein:

Input power by the described lamp socket of constant pressure and flow automatic switching circuit module controls is constant voltage or constant current, and constant pressure and flow automatic switching circuit module adopts DC power supply;

Described constant pressure and flow automatic switching circuit module comprises constant voltage circuit module, constant-current circuit module, automatic switching module, load detection and feedback module;

Automatic switching module detects by the load to the lamp socket place of load detection and feedback module, when load detection and feedback module are the information of Halogen lamp LED load when feeding back to automatic switching module with the load that detects, automatic switching module automatic switchover constant voltage circuit module and lamp socket conducting; When load detection and feedback module are the information of LED lamp load when feeding back to automatic switching module with the load that detects, automatic switching module automatic switchover constant-current circuit module and lamp socket conducting.

Because said structure, the utility model has been realized the convenient exchange of LED lamp and the real meaning of Halogen lamp LED, and this structural volume is little simultaneously, and quality is light, and use cost is low.

Description of drawings

Device of the present utility model can further specify by the non-limiting embodiment that accompanying drawing provides.

Fig. 1 is Halogen lamp LED and LED lamp automatic switching control equipment schematic diagram.

Fig. 2 is Halogen lamp LED and LED lamp automatic switching control equipment circuit block diagram.

Among the figure: 1, lamp socket; 2, constant pressure and flow automatic switching circuit module; 3, dc source; 4, constant voltage circuit module; 5, constant-current circuit module; 6, automatic switching module; 7, load detection and feedback module; 8, duplex potentiometer; 9, LED lamp; 10, Halogen lamp LED; 11, radiator; 12, pin.

The specific embodiment

The utility model is described in further detail below in conjunction with drawings and Examples:

Referring to attached Fig. 1 and 2, be used for Halogen lamp LED on the microscope illumination and the automatic switching control equipment of LED lamp in the accompanying drawing, comprise the lamp socket 1 that can insert LED lamp 9 or Halogen lamp LED 10; Wherein: the input power by the described lamp socket 1 of constant pressure and flow automatic switching circuit module 2 controls is constant voltage or constant current, and constant pressure and flow automatic switching circuit module 2 adopts dc source 3 power supplies; Described constant pressure and flow automatic switching circuit module 2 comprises constant voltage circuit module 4, constant-current circuit module 5, automatic switching module 6, load detection and feedback module 7; Automatic switching module 6 detects by the load at load detection and 7 pairs of lamp socket 1 places of feedback module, when load detection and feedback module 7 are the information of Halogen lamp LED load when feeding back to automatic switching module 6 with the load that detects, automatic switching module 6 automatic switchover constant voltage circuit modules 4 and lamp socket 1 conductings; When load detection and feedback module 7 are the information of LED lamp load when feeding back to automatic switching module 6 with the load that detects, automatic switching module 6 automatic switchover constant-current circuit modules 5 and lamp socket 1 conductings.

When the principle of above-mentioned automatic switching module 6 and load detection and feedback module 7 is based on direct current supply, it is different that Halogen lamp LED and LED are lower than the electric current that passes through under the state of 1.5VDC voltage in power supply, therefore just can distinguish load through current detecting is Halogen lamp LED or LED, thereby switches to required power supply circuits according to testing result.

An output of duplex potentiometer described in the embodiment 8 connects constant voltage circuit module 4, and another output connects constant-current circuit module 5, is used for the size of regulating constant volt circuit module 4 output voltages and constant-current circuit module 5 output currents.

The described LED lamp 9 of above-described embodiment is installed in the radiator 11, is fixed with pin 12 on the radiator 11, adopts insulating materials to fix between pin 12 and the radiator 11, two foots of pin 12 by wire respectively with negative electrode and the anode conducting of LED lamp 9.The radiator of LED is to use for LED lamp heat radiation itself, because the light aluminum alloy materials of usage comparison quality, can be the same with original Halogen lamp LED fixing means when therefore using, do not need to increase in addition fixed part.

Said structure judges that by load detection and feedback module 7 detections of 2 li of constant pressure and flow automatic switching circuit modules load is Halogen lamp LED or LED lamp, and determines it is constant voltage or constant current output according to actual loading; If do constant voltage output when load is Halogen lamp LED, if do constant current output when load is the LED lamp.

In above-described embodiment, because the pin specification of the specification of pin 12 and Halogen lamp LED is the same, so pin 12 can directly be inserted into the lamp socket 1 that shares with Halogen lamp LED.The material that radiator 11 service property (quality)s are low weight so whole LED lamp just can not need other fixed mechanism, and uses pin directly to fix at once, thereby directly replaces Halogen lamp LED.

Said structure in use can exchange between LED lamp 9 and Halogen lamp LED 10 easily.

In sum, this structure has realized the convenient exchange of LED lamp and the real meaning of Halogen lamp LED, and this structural volume is little simultaneously, and quality is light, and use cost is low.

Claims

1. one kind is used for Halogen lamp LED on the microscope illumination and the automatic switching control equipment of LED lamp, comprises the lamp socket (1) that can insert LED lamp (9) or Halogen lamp LED (10); It is characterized in that:

The input power of being controlled described lamp socket (1) by constant pressure and flow automatic switching circuit module (2) is constant voltage or constant current, and constant pressure and flow automatic switching circuit module (2) adopts dc source (3) power supply;

Described constant pressure and flow automatic switching circuit module (2) comprises constant voltage circuit module (4), constant-current circuit module (5), automatic switching module (6), load detection and feedback module (7);

The load that automatic switching module (6) is located lamp socket (1) by load detection and feedback module (7) detects, when load detection and feedback module (7) are the information of Halogen lamp LED load when feeding back to automatic switching module (6) with the load that detects, automatic switching module (6) automatic switchover constant voltage circuit module (4) and lamp socket (1) conducting; When load detection and feedback module (7) are the information of LED lamp load when feeding back to automatic switching module (6) with the load that detects, automatic switching module (6) automatic switchover constant-current circuit module (5) and lamp socket (1) conducting.

2. the automatic switching control equipment for the Halogen lamp LED on the microscope illumination and LED lamp according to claim 1, it is characterized in that: an output of duplex potentiometer (8) connects constant voltage circuit module (4), another output connects constant-current circuit module (5), is used for the size of regulating constant volt circuit module (4) output voltage and constant-current circuit module (5) output current.

3. the automatic switching control equipment for the Halogen lamp LED on the microscope illumination and LED lamp according to claim 1, it is characterized in that: described LED lamp (9) is installed in the radiator (11), be fixed with pin (12) on the radiator (11), adopt insulating materials to fix between pin (12) and the radiator (11), two foots of pin (12) by wire respectively with negative electrode and the anode conducting of LED lamp (9).