CN213118711U - Transmission light source structure for scanning of linear CCD sensor - Google Patents
Transmission light source structure for scanning of linear CCD sensor Download PDFInfo
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- CN213118711U CN213118711U CN202022427636.8U CN202022427636U CN213118711U CN 213118711 U CN213118711 U CN 213118711U CN 202022427636 U CN202022427636 U CN 202022427636U CN 213118711 U CN213118711 U CN 213118711U
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Abstract
The utility model discloses a transmission light source structure for scanning of a linear CCD sensor, which relates to the technical field of product surface detection and comprises a transmission light source lamp box, wherein a light source diffusion plate is arranged at the top of the transmission light source lamp box; the lamp body fixing plate is arranged on the inner side of the transmission light source lamp box, and a plurality of LED illuminating lamps are paved on the top side surface of the lamp body fixing plate and used for forming a transmission light source with an upward illuminating direction; and the lamp body control circuit board is arranged on the inner side of the transmission light source lamp box and is used for driving the LED illuminating lamp to be turned on or turned off. The utility model provides a according to radiator fan, lamp body control circuit board and lamp body fixed plate that the order set up, the heat that produces in the transmission light source lamp box can be taken away to the wind that can make radiator fan blow off to through the air outlet that is located the below, can be with hot-blast discharge downwards, make the exhaust hot-blast can not influence and examined the object.
Description
Technical Field
The utility model relates to a product surface detection technical field especially relates to a transmission light source structure for linear CCD sensor scanning.
Background
CCD sensors are made of a high-sensitivity semiconductor material that converts light into electrical charges. At present, the method is widely applied to the surface flaw detection of industrial products. In particular to the detection of various defects on the surface of a product.
At present, in CCD sensor scanning sample process, the luminance and the stability of illumination source directly influence the dynamic range and the precision of CCD sensor scanning sample, and illumination source's luminance is high and stability is good, then can acquire more accurate sample data, wideer dynamic range to adapt to more sample types.
At present, an upward transmission light source of an illumination area is frequently used below a CCD sensor, but the current transmission light source structure cannot realize uniformity and high brightness, in addition, if the illumination brightness is improved, the heat dissipation problem of an LED illumination light source is considered to a great extent, but the space for field installation is limited, and the excessive heat dissipation of the light source is quite inappropriate and inconvenient to install.
Therefore, the problem to be solved is to construct a transmission light source structure which is suitable and convenient to install and is matched with a CCD sensor positioned above.
SUMMERY OF THE UTILITY MODEL
The utility model mainly aims at providing a transmission light source structure for linear CCD sensor scanning can carry out effectual heat dissipation to the inner space of lamp box, can cooperate the CCD sensor to use, treats to examine the object and supports to produce corresponding transmission light source.
The purpose of the utility model can be achieved by adopting the following technical scheme:
a transmission light source structure for linear CCD sensor scanning comprises
The transmission light source lamp box is provided with a light source diffusion plate at the top;
the lamp body fixing plate is arranged on the inner side of the transmission light source lamp box, and a plurality of LED illuminating lamps are paved on the top side surface of the lamp body fixing plate and used for forming a transmission light source with an upward illuminating direction;
the lamp body control circuit board is arranged on the inner side of the transmission light source lamp box and used for driving the LED illuminating lamp to be turned on or turned off;
the heat dissipation fan is arranged at one end of the transmission light source lamp box and used for blowing away heat on the lamp body control circuit board and the LED illuminating lamp;
and the air outlet penetrates through the side surface of the transmission light source lamp box, so that the heat blown away by the cooling fan flows to the outside of the transmission light source lamp box.
Preferably, the lamp body control circuit board comprises a first circuit board and a second circuit board which are distributed up and down, the second circuit board is used for controlling the power of the LED illuminating lamp, the first circuit board is used for measuring current signals of the voltage-controlled constant current source, and a long pin header is connected between the first circuit board and the second circuit board.
Preferably, a supporting mechanism is arranged between the lamp body fixing plate and the transmission light source lamp box, and the supporting mechanism is used for enabling a space to be reserved between the bottom side surface of the lamp body fixing plate and the inner bottom side surface of the transmission light source lamp box.
Preferably, the supporting mechanism comprises a first supporting rod fixed on the inner bottom side surface of the transmission light source lamp box and two second supporting rods fixed on the top of the first supporting rod, and the lamp body fixing plate is fixed on the top side surface of the second supporting rods.
Preferably, the air outlet vertically penetrates through the bottom side surface of the transmission light source lamp box.
Preferably, the heat dissipation fan, the lamp body control circuit board, the lamp body fixing plate and the air outlet are sequentially distributed from left to right.
Preferably, a heat dissipation fan fixing plate is fixed at one end of the transmission light source lamp box, and the heat dissipation fan is fixed on the heat dissipation fan fixing plate.
Preferably, the number of the heat dissipation fans is four, and the four heat dissipation fans are horizontally installed on the side surface of the heat dissipation fan fixing plate, so that the blowing path of the heat dissipation fan passes through the top and bottom side surfaces of the lamp body fixing plate.
Preferably, a plurality of LED light from left to right distribute in proper order the top side of lamp body fixed plate, lamp body control circuit board is equipped with two sets ofly, and one of them group lamp body control circuit board is used for driving the LED light of odd number, and another group lamp body control circuit board is used for driving the LED light of even number.
Preferably, the bottom side surface of the transmission light source lamp box is further penetrated with heat dissipation holes, and the heat dissipation holes are located below the lamp body control circuit board.
The utility model has the advantages of:
1. the utility model provides a according to radiator fan, lamp body control circuit board and lamp body fixed plate that the order set up, the heat that produces in the transmission light source lamp box can be taken away to the wind that can make radiator fan blow off to through the air outlet that is located the below, can be with hot-blast discharge downwards, make the exhaust hot-blast can not influence and examined the object.
2. The utility model provides a two sets of lamp body control circuit board can control the LED light that distributes on the lamp body fixed plate respectively, when the luminance demand is low, can only light partly, convenient control and energy saving.
3. The utility model provides a louvre can dispel the heat to the second circuit board effectively, avoids the second circuit board to generate heat great and leads to self life impaired, has improved lamp body control circuit board's life effectively.
4. The utility model provides a transmission light source structure not only can be convenient cooperation CCD sensor use, and its inner space's heat also can obtain timely effluvium moreover, has alleviated the inside heat gathering of lamp box effectively, has improved LED light and lamp body control circuit board's life.
Drawings
Fig. 1 is a schematic perspective view of a transmission light source lamp box and a light source diffusion plate according to an embodiment of the present invention;
fig. 2 is a schematic perspective view of a light box of a transmission light source and a lamp body fixing plate according to an embodiment of the present invention;
fig. 3 is a schematic perspective view of a light box and a support structure of a transmission light source according to an embodiment of the present invention;
fig. 4 is a schematic side view of a fixing plate of a cooling fan according to an embodiment of the present invention;
fig. 5 is a schematic bottom perspective view of a transmission light source lamp box according to an embodiment of the present invention;
fig. 6 is a schematic perspective view of a lamp body control circuit board according to an embodiment of the present invention;
fig. 7 is a schematic side view of the lamp body control circuit board according to the utility model discloses an embodiment.
In the figure: 1-transmission light source lamp box, 2-light source diffuser plate, 3-lamp body fixing plate, 4-lamp body control circuit board, 401-first circuit board, 402-second circuit board, 5-heat dissipation fan, 6-air outlet, 7-heat dissipation hole, 8-first support rod, 9-second support rod, 10-long pin, 11-LED lighting lamp, and 12-heat dissipation fan fixing plate.
Detailed Description
In order to make the technical solutions of the present invention clearer and clearer for those skilled in the art, the present invention will be described in further detail with reference to the following embodiments and the accompanying drawings, but the embodiments of the present invention are not limited thereto.
As shown in fig. 1-7, the present embodiment provides a transmission light source structure for scanning of a linear CCD sensor, which includes
The transmission light source lamp box 1 is of a box-shaped structure with an opening at the top, and a light source diffusion plate 2 is arranged at the top of the transmission light source lamp box 1 and can uniformly disperse upward illuminated light sources;
the lamp body fixing plate 3 is arranged on the inner side of the transmission light source lamp box 1, and a plurality of LED illuminating lamps 11 are paved on the top side surface of the lamp body fixing plate 3 and used for forming a transmission light source with an upward illuminating direction;
the lamp body control circuit board 4 is arranged on the inner side of the transmission light source lamp box 1, and is used for driving the LED illuminating lamp 11 to be turned on or turned off;
the heat radiation fan 5 is arranged at one end of the transmission light source lamp box 1, and is used for blowing away heat on the lamp body control circuit board 4 and the LED illuminating lamp 11;
the air outlet 6 and the air outlet 6 penetrate through the side face of the transmission light source lamp box 1, so that the space in the transmission light source lamp box 1 is communicated with the external space, and heat blown away by the cooling fan 5 can be conveniently circulated to the outside of the transmission light source lamp box 1.
In this embodiment, as shown in fig. 1, the lamp body control circuit board 4 includes a first circuit board 401 and a second circuit board 402 which are distributed up and down, the second circuit board 402 is used for controlling the power of the LED lighting lamp 11, the second circuit board 402 generates heat seriously, and is located below the second circuit board 402, so that heat dissipation is facilitated, the first circuit board 401 is used for measuring the current signal of the voltage-controlled constant current source, and the long pin header 10 is connected between the first circuit board 401 and the second circuit board 402.
In this embodiment, as shown in fig. 2 and 3, a support mechanism is disposed between the lamp body fixing plate 3 and the transmission light source lamp box 1, the support mechanism is used to make a space between the bottom side of the lamp body fixing plate 3 and the inner bottom side of the transmission light source lamp box 1, the support mechanism includes a first support rod 8 fixed on the inner bottom side of the transmission light source lamp box 1 and two second support rods 9 fixed on the top of the first support rod 8, the lamp body fixing plate 3 is fixed on the top side of the second support rods 9, so that the heat of the bottom side of the lamp body fixing plate 3 can be blown away by the heat dissipation fan 5 for convenience, which is beneficial to dissipating heat inside the transmission light source lamp box 1.
In this embodiment, as shown in fig. 5, the air outlet 6 vertically penetrates through the bottom side surface of the transmission light source lamp box 1, so that the air blown by the heat dissipation fan 5 carries the heat in the transmission light source lamp box 1 to be discharged downward, and does not interfere with an object to be inspected, such as a piece of cloth to be inspected.
In this embodiment, as shown in fig. 2, the heat dissipation fan 5, the lamp body control circuit board 4, the lamp body fixing plate 3 and the air outlet 6 are sequentially distributed from left to right, so that the heat generated by the heat dissipation fan 5 can be taken away from the lamp body control circuit board 4 and the lamp body fixing plate 3 sequentially, and the hot air is blown out from the air outlet 6.
In this embodiment, as shown in fig. 1, a heat dissipation fan fixing plate 12 is fixed at one end of the transmission light source lamp box 1, the heat dissipation fan 5 is fixed on the heat dissipation fan fixing plate 12, four heat dissipation fans 5 are arranged, and are all horizontally installed on the side surface of the heat dissipation fan fixing plate 12, so that the blowing path of the heat dissipation fan 5 passes through the top and bottom side surfaces of the lamp body fixing plate 3, the heat on the lamp body fixing plate 3 can be effectively taken away, and the heat dissipation efficiency is improved.
In this embodiment, as shown in fig. 1, the plurality of LED lighting lamps 11 are sequentially distributed on the top side of the lamp body fixing plate 3 from left to right, the lamp body control circuit board 4 is provided with two sets, one set of lamp body control circuit board 4 is used for driving odd-numbered LED lighting lamps 11, the other set of lamp body control circuit board 4 is used for driving even-numbered LED lighting lamps 11, when the brightness requirement is low, only one half of the light bars can be lightened, and the whole light source can uniformly emit light.
In the present embodiment, as shown in fig. 1, a heat dissipation hole 7 is further formed through the bottom side surface of the light box 1 for transmitting light, and the heat dissipation hole 7 is located below the lamp body control circuit board 4, in order to improve the heat dissipation of the second circuit board 402.
The above description is only a further embodiment of the present invention, but the scope of protection of the present invention is not limited thereto, and any person skilled in the art can replace or change the technical solution and the concept of the present invention within the scope of the present invention.
Claims (10)
1. A transmissive light source structure for scanning of a linear CCD sensor, comprising: comprises that
The transmission light source lamp box (1), the top of the transmission light source lamp box (1) is provided with a light source diffusion plate (2);
the LED illuminating lamp comprises a lamp body fixing plate (3), wherein the lamp body fixing plate (3) is arranged on the inner side of the transmission light source lamp box (1), and a plurality of LED illuminating lamps (11) are paved on the top side surface of the lamp body fixing plate (3) and used for forming a transmission light source with an upward illuminating direction;
the lamp body control circuit board (4), the lamp body control circuit board (4) is arranged on the inner side of the transmission light source lamp box (1) and is used for driving the LED illuminating lamp (11) to be turned on or turned off;
the heat dissipation fan (5), the heat dissipation fan (5) is arranged at one end of the transmission light source lamp box (1) and is used for blowing away heat on the lamp body control circuit board (4) and the LED illuminating lamp (11);
and the air outlet (6) penetrates through the side surface of the transmission light source lamp box (1), so that the heat blown away by the cooling fan (5) is circulated to the outside of the transmission light source lamp box (1).
2. The structure of a transmissive light source for scanning by a linear CCD sensor of claim 1, wherein: the LED illuminating lamp is characterized in that the lamp body control circuit board (4) comprises a first circuit board (401) and a second circuit board (402) which are vertically distributed, the second circuit board (402) is used for controlling the power of the LED illuminating lamp (11), the first circuit board (401) is used for measuring current signals of the voltage-controlled constant current source, and a long pin (10) is connected between the first circuit board (401) and the second circuit board (402).
3. The structure of a transmissive light source for scanning by a linear CCD sensor of claim 1, wherein: a supporting mechanism is arranged between the lamp body fixing plate (3) and the transmission light source lamp box (1), and the supporting mechanism is used for enabling a space to be reserved between the bottom side face of the lamp body fixing plate (3) and the inner bottom side face of the transmission light source lamp box (1).
4. The structure of the transmission light source for the scanning of the linear CCD sensor according to claim 3, wherein: the supporting mechanism comprises a first supporting rod (8) fixed on the inner bottom side surface of the transmission light source lamp box (1) and two second supporting rods (9) fixed at the tops of the first supporting rods (8), and the lamp body fixing plate (3) is fixed on the top side surface of the second supporting rods (9).
5. The structure of a transmissive light source for scanning by a linear CCD sensor of claim 1, wherein: the air outlet (6) vertically penetrates through the bottom side surface of the transmission light source lamp box (1).
6. The structure of the transmissive light source for linear CCD sensor scanning of claim 5, wherein: the heat dissipation fan (5), the lamp body control circuit board (4), the lamp body fixing plate (3) and the air outlet (6) are sequentially distributed from left to right.
7. The structure of a transmissive light source for scanning by a linear CCD sensor of claim 1, wherein: and a heat radiation fan fixing plate (12) is fixed at one end of the transmission light source lamp box (1), and the heat radiation fan (5) is fixed on the heat radiation fan fixing plate (12).
8. The structure of a transmissive light source for linear CCD sensor scanning of claim 7, wherein: the number of the heat dissipation fans (5) is four, and the four heat dissipation fans are all horizontally arranged on the side face of the heat dissipation fan fixing plate (12), so that the blowing path of the heat dissipation fan (5) passes through the top side face and the bottom side face of the lamp body fixing plate (3).
9. The structure of a transmissive light source for scanning by a linear CCD sensor of claim 1, wherein: a plurality of LED light (11) distribute in proper order from left to right the top side of lamp body fixed plate (3), lamp body control circuit board (4) are equipped with two sets ofly, and wherein a set ofly lamp body control circuit board (4) are used for driving odd LED light (11), and a set ofly in addition lamp body control circuit board (4) are used for driving even LED light (11).
10. The structure of a transmissive light source for scanning by a linear CCD sensor of claim 9, wherein: the bottom side surface of the transmission light source lamp box (1) is also penetrated with a heat dissipation hole (7), and the heat dissipation hole (7) is positioned below the lamp body control circuit board (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022427636.8U CN213118711U (en) | 2020-10-28 | 2020-10-28 | Transmission light source structure for scanning of linear CCD sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022427636.8U CN213118711U (en) | 2020-10-28 | 2020-10-28 | Transmission light source structure for scanning of linear CCD sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213118711U true CN213118711U (en) | 2021-05-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022427636.8U Active CN213118711U (en) | 2020-10-28 | 2020-10-28 | Transmission light source structure for scanning of linear CCD sensor |
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| Country | Link |
|---|---|
| CN (1) | CN213118711U (en) |
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2020
- 2020-10-28 CN CN202022427636.8U patent/CN213118711U/en active Active
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