CN210896156U

CN210896156U - LED lamp source assembly of photoelectric effect experimental instrument

Info

Publication number: CN210896156U
Application number: CN201921851507.2U
Authority: CN
Inventors: 彭旸; 彭志平
Original assignee: NANJING LANGBOW SCIENCE & TEACHING APPARATUS CO LTD
Current assignee: NANJING LANGBOW SCIENCE & TEACHING APPARATUS CO LTD
Priority date: 2019-10-30
Filing date: 2019-10-30
Publication date: 2020-06-30
Anticipated expiration: 2029-10-30

Abstract

The utility model relates to the field of science and education laboratory instruments, and discloses a LED lamp source component of a photoelectric effect laboratory instrument, which comprises a rotary drum type lamp holder (1), wherein a plurality of lamp grooves (3) for accommodating LED lamp tubes (2) are arranged on the rotary drum type lamp holder (1) along the circumferential direction in an array manner; the rotary drum type lamp holder (1) is arranged on the rotating shaft (4) in a penetrating mode. The utility model is provided with the rotary drum type lamp holder, so that the LED lamp tubes with different wavelengths can be conveniently switched; compared with an optical fiber mode, a complex optical fiber light guide structure is omitted; for sharing lighting fixture, along with the lamp from the sharing lighting fixture take down and put the increase of number of times, the fastening structure of lighting fixture can slowly relax to influence the location of lamp, just so can not guarantee that every lamp all is in the same position of light path, consequently, the utility model has the advantages of simple structure, the location is accurate.

Description

LED lamp source assembly of photoelectric effect experimental instrument

Technical Field

The utility model relates to a science and education laboratory glassware field particularly, is a LED lamp source subassembly of simple structure, the accurate photoelectric effect laboratory glassware in location.

Background

Eight LED lamps with different wavelengths are needed in the photoelectric effect experiment, and although the LED lamps are not used simultaneously, the light emitting positions of the LED lamps are required to be the same. Currently, there are two types of arrangement of these LED lamps on the instrument:

1. the eight lamps are placed in the instrument at any position, but the light is guided from the light emitting ports of the eight lamps to a common light emitting port by using optical fibers to be emitted, and which lamp is needed to be connected with which group of optical fibers; this approach is relatively complex in structure;

2. the LED lamp is placed on the lamp holder, and after the LED lamp is used up, the LED lamp is removed from the lamp holder to be replaced, and the LED lamp is not required to be taken out, assembled and disassembled frequently.

SUMMERY OF THE UTILITY MODEL

Utility model purpose: an object of the utility model is to provide a simple structure, location are accurate and convenient operation's LED lamp source subassembly.

The technical scheme is as follows: the utility model discloses a following technical means realizes: an LED lamp source assembly of a photoelectric effect experiment instrument comprises a rotary drum type lamp holder, wherein a plurality of lamp grooves used for accommodating LED lamp tubes are arranged in an array mode along the circumferential direction of the rotary drum type lamp holder; the rotary drum type lamp holder is arranged on the rotating shaft in a penetrating mode.

The rotary drum type lamp holder is provided with a plurality of lamp holder contacts along the circumferential edge of the rotary drum type lamp holder, and the lamp holder contacts correspond to the LED lamp barrels one to one; and an upper contact piece is arranged above the rotary drum type lamp holder.

The rotating shaft is coaxially provided with a contact ring, and the contact ring is arranged on the back of the drum-type lamp holder.

And the lower contact piece is closely contacted with the contact ring.

Two electrodes are arranged on the back of the LED lamp tube; the two electrodes are arranged on the same diameter of the section of the LED lamp tube; one of said electrodes is in contact with the socket contact and the other of said electrodes is in contact with the contact ring.

One end of the rotating shaft is fixed on the first support through a nut, the top end of the first support is provided with a transmitting window, the upper contact piece is arranged at the top of the transmitting window, and the lower contact piece is arranged at the bottom of the transmitting window; when any LED lamp tube rotates to a position opposite to the emission window, the lamp holder contact and the upper contact piece are in close contact.

The other end of the rotating shaft is fixedly arranged on the second bracket through a nut.

The first support and the second support are both fixed on the base.

The base is provided with a third bracket at a position opposite to the rotary drum type lamp holder, and the top of the third bracket is provided with an objective lens receiving seat used for receiving a light source emitted from the LED lamp tube.

The back side of the receiving objective lens seat is connected with the receiver box.

The utility model is provided with the rotary drum type lamp holder, so that the LED lamp tubes with different wavelengths can be conveniently switched; compared with an optical fiber mode, a complex optical fiber light guide structure is omitted; for sharing lighting fixture, along with the lamp from the sharing lighting fixture take down and put the increase of number of times, the fastening structure of lighting fixture can slowly relax to influence the location of lamp, just so can not guarantee that every lamp all is in the same position of light path, consequently, the utility model has the advantages of simple structure, the location is accurate.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a front view of FIG. 1;

fig. 3 is a schematic structural diagram of an LED lamp tube.

Reference numerals: 1-drum lamp holder, 2-LED lamp tube, 3-lamp groove, 4-rotating shaft, 5-lamp holder contact, 6-upper contact piece, 7-contact ring, 8-lower contact piece, 9-electrode, 10-first support, 11-emission window, 12-second support, 13-base, 14-third support, 15-receiving objective lens holder and 16-receiver box.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Example (b):

referring to fig. 1, an LED light source assembly of a photoelectric effect tester comprises a drum-type lamp holder 1, wherein a plurality of lamp grooves 3 for accommodating LED lamp tubes 2 are arranged in the drum-type lamp holder 1 along the circumferential direction in an array manner; the utility model discloses in, the light trough is six, and 1 centre of a circle position of rotary drum lamp stand is equipped with the through-hole for wear to establish on pivot 4 with whole rotary drum lamp stand 1. The back of the drum-type lamp holder 1 is also provided with a contact ring 7 which is also arranged on the rotating shaft 4 in a penetrating way and is coaxial with the lamp holder.

The circumferential edge of the drum-type lamp holder 1 is provided with lamp holder contacts 5, and the number of the lamp holder contacts 5, the number of the LED lamp tubes 2 and the number of the lamp grooves 3 are in one-to-one correspondence and protrude out of the surface of the lamp holder.

One end of the rotating shaft 4 is fixed on a first bracket 10 through a nut, and the top end of the first bracket 10 is provided with an emission window 11; the other end is also secured to the second bracket 12 by a nut. The first bracket 10 and the second bracket 12 are both fixed on the base 13. The base is also provided with a third bracket 14 at the same straight line position with the first bracket and the second bracket, a receiving objective lens seat 15 is arranged at the top of the third bracket, and the back side of the receiving objective lens seat is connected with a receiver box 16.

The top of the emission window 11 is provided with an upper contact piece 6; the bottom is provided with a lower contact 8 which is in close contact with the contact ring 7.

Two electrodes 9 are arranged on the back of the LED lamp tube 2; the two electrodes 9 are arranged on the same diameter of the section of the LED lamp barrel 2; when the lamp vessel is inserted into the lamp vessel 3, one electrode 9 is brought into contact with the socket contact 5 and the other electrode 9 is brought into contact with the contact ring 7.

The working principle is as follows:

when any LED lamp tube 2 installed in the lamp groove rotates to a position facing the emission window 11, the lamp holder contact 5 is in close contact with the upper contact piece 6, one electrode 9 of the lamp tube is in close contact with the upper contact piece 6 through the lamp holder contact 5, the other electrode 9 is in contact with the lower contact piece 8 through the contact ring 7, the two electrodes supply power to emit light beams, the light beams are emitted forwards into the receiving objective lens, and other lamp sources which are not positioned in the emission window cannot be in contact with the electrode contact pieces, so that the power cannot be supplied, and light cannot be emitted. After the LEDE lamp tube needs to be replaced, only the lamp holder needs to be rotated.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. The utility model provides a LED lamp source subassembly of photoelectric effect experiment appearance which characterized in that: the LED lamp comprises a rotary drum type lamp holder (1), wherein a plurality of lamp grooves (3) for accommodating LED lamp tubes (2) are arranged in the rotary drum type lamp holder (1) along the circumferential direction in an array manner; the rotary drum type lamp holder (1) is arranged on the rotating shaft (4) in a penetrating mode.

2. The LED light source assembly of the photoelectric effect tester as claimed in claim 1, wherein: the rotary drum type lamp holder (1) is provided with a plurality of lamp holder contacts (5) along the circumferential edge, and the lamp holder contacts (5) correspond to the LED lamp barrels (2) one by one; an upper contact piece (6) is arranged above the rotary drum type lamp holder (1).

3. The LED light source assembly of the photoelectric effect tester as claimed in claim 2, wherein: the rotating shaft (4) is coaxially provided with a contact ring (7), and the contact ring (7) is arranged on the back surface of the drum-type lamp holder (1).

4. The LED light source assembly of the photoelectric effect tester as claimed in claim 3, wherein: and a lower contact piece (8) is also arranged, and the lower contact piece (8) is tightly contacted with the contact ring (7).

5. The LED lamp source assembly of the photoelectric effect experiment instrument as claimed in claim 4, wherein: two electrodes (9) are arranged on the back surface of the LED lamp tube (2); the two electrodes (9) are arranged on the same diameter of the section of the LED lamp tube (2); one of the electrodes (9) is in contact with the socket contact (5), and the other electrode (9) is in contact with the contact ring (7).

6. The LED light source assembly of the photoelectric effect tester as claimed in claim 5, wherein: one end of the rotating shaft (4) is fixed on a first support (10) through a nut, a transmitting window (11) is arranged at the top end of the first support (10), the upper contact piece (6) is arranged at the top of the transmitting window (11), and the lower contact piece (8) is arranged at the bottom of the transmitting window (11); when any LED lamp tube (2) rotates to a position opposite to the emission window (11), the lamp holder contact (5) is tightly contacted with the upper contact piece (6).

7. The LED light source assembly of the photoelectric effect tester as claimed in claim 6, wherein: the other end of the rotating shaft (4) is fixedly arranged on the second bracket (12) through a nut.

8. The LED light source assembly of the photoelectric effect tester as claimed in claim 7, wherein: the first support (10) and the second support (12) are fixed on the base (13).

9. The LED light source assembly of the photoelectric effect tester as claimed in claim 8, wherein: the base (13) is provided with a third bracket (14) at a position opposite to the rotary drum type lamp holder (1), and the top of the third bracket (14) is provided with an objective lens receiving seat (15) for receiving a light source emitted from the LED lamp tube (2).

10. The LED light source assembly of the photoelectric effect tester as claimed in claim 9, wherein: the back side of the receiving objective lens seat (15) is connected with a receiver box (16).