Light source and reference integrated detection structure with heat dissipation function

Abstract

The utility model discloses a light source reference integrated detection structure with a heat dissipation function, which comprises a light source processing mechanism and a heat dissipation mechanism which are arranged up and down and are tightly connected through a plurality of fixing columns, and is characterized in that a light source channel is formed in the vertical center in the light source processing mechanism; the bottom of the light source channel is aligned with the LED lamp, a focusing lens is arranged at the top of the light source channel, and two reference detection parts are symmetrically arranged on the left side and the right side of the vertical center line of the light source channel; and the heat dissipation mechanism comprises a heat dissipation sheet and a fan which are arranged up and down. According to the utility model, the multi-wavelength LED lamp of the emission light source is integrally combined with the reference sensor, so that the light path structure can be effectively simplified, the heating power consumption is reduced, and the heat dissipation structure is configured, so that the generated heat can be timely dissipated, the normal operation of the detection process is ensured, and the service life is prolonged.

Description

TECHNICAL FIELD

[0001] The utility model relates to a light source reference integration detection structure with heat dissipation function belongs to ultraviolet detector technical field. BACKGROUND

[0002] The ultraviolet detector (UV) is the detector based on the principle that solute molecules absorb ultraviolet light, has good selectivity and high sensitivity, and has low sensitivity to environmental temperature, flow phase composition change and flow rate fluctuation, and has strong detection adaptability. Because most common organic substances and part of inorganic substances have ultraviolet absorption properties, the ultraviolet detector is one of the most widely used detectors in liquid chromatography.

[0003] However, the existing ultraviolet detector adopts deuterium lamp and grating for scanning detection operation, and the overall optical path structure is complex, so that the occupied volume is large, and the heat dissipation power of the light source is large, which often leads to the shortening of the service life due to the delay of heat dissipation. Therefore, it is necessary to provide a light source reference integration detection structure with heat dissipation function to further improve the use performance of the ultraviolet detector. SUMMARY

[0004] The utility model discloses a light source reference integration detection structure with heat dissipation function to solve the problem of complex optical path structure and poor heat dissipation effect.

[0005] The technical solution of the utility model is: a light source reference integration detection structure with heat dissipation function, including the light source processing mechanism and the heat dissipation mechanism arranged up and down, the light source processing mechanism and the heat dissipation mechanism are fastened to each other through several fixed columns, and the characteristics are that: the vertical center of the light source processing mechanism is provided with a light source channel, the bottom of the light source channel is arranged opposite to the LED lamp, and the top of the light source channel is provided with a focusing lens; the first reference detection part and the second reference detection part are symmetrically arranged on the left and right sides of the vertical center line of the light source channel; the heat dissipation mechanism includes the heat dissipation fin and the fan arranged up and down.

[0006] Further, the light source reference integration detection structure with heat dissipation function has the following characteristics: the top of the light source processing mechanism is provided with a fiber interface for connecting the optical fiber, and the fiber interface is arranged at the upper end of the light source channel.

[0007] Further, the light source reference integrated detection structure with heat dissipation function, wherein: the first reference detection part comprises a first light transmission hole, a first filter and a first ultraviolet reference sensor, one end of the first light transmission hole is communicated with the light source channel, the other end of the first light transmission hole is communicated with the first ultraviolet reference sensor, and the first filter is arranged between the first light transmission hole and the first ultraviolet reference sensor.

[0008] Preferably, the light source reference integrated detection structure with heat dissipation function, wherein: the first filter is stacked by thin films with a refractive index of 2.1-2.43.

[0009] Preferably, the light source reference integrated detection structure with heat dissipation function, wherein: the first ultraviolet reference sensor is a 254nm ultraviolet reference light DP-SCOD sensor.

[0010] Further, the light source reference integrated detection structure with heat dissipation function, wherein: the second reference detection part comprises a second light transmission hole, a second filter and a second ultraviolet reference sensor, one end of the second light transmission hole is communicated with the light source channel, the other end of the second light transmission hole is communicated with the second ultraviolet reference sensor, and the second filter is arranged between the second light transmission hole and the second ultraviolet reference sensor.

[0011] Preferably, the light source reference integrated detection structure with heat dissipation function, wherein: the second filter is stacked by thin films with a refractive index of 1.53-1.70.

[0012] Preferably, the light source reference integrated detection structure with heat dissipation function, wherein: the second ultraviolet reference sensor is a 280nm ultraviolet reference light DP-SCOD sensor.

[0013] Compared with the prior art, after the technical scheme of the utility model is adopted, the multi-wavelength LED lamp of the emitting light source is integrated with the reference sensor, the optical path structure can be effectively simplified, the heat dissipation power consumption is reduced, the heat dissipation structure is configured, the generated heat is dissipated in time, the normal operation is ensured and the service life is prolonged, so that the cost is compressed. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is a three-dimensional structure schematic view of the utility model;

[0015] Figure 2 It is a front view of Figure 1

[0016] Figure 3 It is a sectional view of Figure 1 ​​

[0017] Figure 4 The utility model is installed in the three-dimensional structure schematic view of the pipeline state of the flow cell;

[0018] Figure 5 The utility model is Figure 4 The front view;

[0019] Figure 6 The utility model is Figure 5 The exploded schematic view.

[0020] The meaning of each reference sign in the figure is: 1 - light source processing mechanism, 2 - heat dissipation mechanism, 21 - heat dissipation fin, 22 - fan, 3 - fixed column, 4 - LED lamp, 5 - first light hole, 6 - first filter, 7 - first ultraviolet reference sensor, 8 - second light hole, 9 - second filter, 10 - second ultraviolet reference sensor, 11 - optical fiber interface, 12 - light source channel, 13 - focusing lens, 14 - transmission optical fiber, 15 - flow cell, 16 - optical fiber joint. DETAILED DESCRIPTION

[0021] The technical scheme of the utility model will be further described below in combination with the drawings so as to be more easily understood and mastered. The light hole, filter, ultraviolet reference sensor and focusing lens 13 and other components involved are all commonly used by ordinary skilled persons in the art and are not specially required in this case.

[0022] As Figure 1 , Figure 2 and Figure 3 The utility model provides a light source reference integrated detection structure with heat dissipation function, including the light source processing mechanism 1 and the heat dissipation mechanism 2 set up up and down, the light source processing mechanism 1 with the heat dissipation mechanism 2 are fastened to the interface through a few fixed columns 3, so that the heat dissipation mechanism 2 carries out zero distance heat dissipation cooling operation to the light source processing mechanism 1.

[0023] According to the technical scheme of the utility model, the light source channel 12 is set up in the vertical center of the light source processing mechanism 1, the bottom of the light source channel 12 is set up with the LED lamp 4, the top of the light source channel 12 is equipped with focusing lens 13, the first reference detection part and the second reference detection part are set up symmetrically along the vertical center line of the light source channel 12, the heat dissipation mechanism 2 includes the heat dissipation fin 21 and the fan 22 set up up and down, the heat dissipation fin 21 is set up with a few and equidistant arrangement, so as to cooperate with the fan 22 to accelerate air flow and improve the heat dissipation efficiency.

[0024] Further, in the above structure: the top of the light source processing mechanism 1 is provided with a fiber interface 11 for connecting a transmission optical fiber 14, the fiber interface 11 is arranged at the upper end of the light source channel 12, and the transmission optical fiber 14 is connected with the fiber interface 11 through a fiber joint 16.

[0025] Preferably, in the above structure: the first reference detection part comprises a first light transmission hole 5, a first filter 6 and a first ultraviolet reference sensor 7, one end of the first light transmission hole 5 is in communication connection with the light source channel 12, the other end of the first light transmission hole 5 is in communication with the first ultraviolet reference sensor 7, and the first filter 6 is arranged between the first light transmission hole 5 and the first ultraviolet reference sensor 7.

[0026] Specifically, in the structure of the above first reference detection part, the first filter 6 is stacked by a thin film with a refractive index of 2.1-2.43, and the corresponding target wavelength can be screened through the first filter 6.

[0027] More specifically, the first ultraviolet reference sensor 7 is a 254nm ultraviolet reference light DP-SCOD sensor, which has high sensitivity and can be used to accept detection of 254nm ultraviolet light beam parameters, thereby improving detection accuracy.

[0028] Preferably, in the above structure: the second reference detection part comprises a second light transmission hole 8, a second filter 9 and a second ultraviolet reference sensor 10, one end of the second light transmission hole 8 is in communication connection with the light source channel 12, the other end of the second light transmission hole 8 is in communication with the second ultraviolet reference sensor 10, and the second filter 9 is arranged between the second light transmission hole 8 and the second ultraviolet reference sensor 10.

[0029] Specifically, in the structure of the above second reference detection part, the second filter 9 is stacked by a thin film with a refractive index of 1.53-1.70, and the corresponding target wavelength can be screened through the second filter 9.

[0030] More specifically, the second ultraviolet reference sensor 10 is a 280nm ultraviolet reference light DP-SCOD sensor, which has high sensitivity and can be used to accept detection of 280nm ultraviolet light beam parameters, thereby improving detection accuracy.

[0031] In the technical scheme of the utility model, the added heat dissipation structure, the multi-wavelength LED lamp combined with the reference sensor are the technical key of the case, the ultraviolet detection structure of the light source reference integration simplifies the light path, generates additional heat which is dissipated in time through the heat dissipation structure, so as to prevent high temperature from damaging the internal structure or affecting the service life, Figure 3The key part of the application is the double-wavelength LED lamp structure with reference and the related components of the heat dissipation structure. The components such as the light hole, the filter, the ultraviolet reference sensor and the focusing lens 13 can be set according to the prior art, and the application does not have special requirements for the selection of the type and the combination of the components.

[0032] As shown in the installation state of the flow cell pipeline, Figure 4 、 Figure 5 and Figure 6 , the optical fiber interface 11 arranged at the top of the light source processing mechanism 1 is connected with the optical fiber joint 16 arranged at the first end of the transmission optical fiber 14, the second end of the transmission optical fiber 14 is connected with the flow cell 15 through another optical fiber joint 16, the single-wavelength or double-wavelength ultraviolet light generated by the LED lamp 4 in the light source processing mechanism 1 enters different reference detection parts through the first light hole 5 or the second light hole 8, the ultraviolet light is screened out by the first filter 6 or the second filter 9 to have a wavelength of 254 nm or 280 nm, and finally the light source fluctuation detection is performed by the first ultraviolet reference sensor 7 or the second ultraviolet reference sensor 10 to provide the basic light intensity parameter and the stable reference signal, so as to ensure the accuracy and reliability of the measurement. The light beam after the reference detection can be emitted to the flow cell 15, and the mixed light is sent to the next processing step after being absorbed and attenuated by the solution. During the whole detection process, the heat dissipation mechanism 2 performs heat dissipation operation synchronously, the air flow is accelerated by the fan 22, and then the heat dissipation fins 21 expand the heat dissipation area, so that the heat generated by the light source processing mechanism 1 is more easily dissipated, the effective cooling is realized, and the service life is prolonged.

[0033] Compared with the prior art, the multi-wavelength LED lamp emitting light source is integrated with the reference sensor according to the technical scheme of the application, the optical path structure can be effectively simplified, the heat dissipation structure is configured to dissipate the generated heat in time, so as to ensure normal operation and prolong the service life, and the cost is compressed.

[0034] The technical scheme, working process and implementation effect of the application are described in detail above, and it should be noted that the described is only a typical example of the application, and the application can have other various specific implementation manners, and the technical schemes formed by equivalent replacement or equivalent transformation all fall within the scope of the application.

Claims

1. A light source reference integrated detection structure with heat dissipation function, comprising a light source processing mechanism (1) and a heat dissipation mechanism (2) arranged in an up-down manner, the light source processing mechanism (1) and the heat dissipation mechanism (2) are fastened and connected through several fixing columns (3), characterized in that: A light source channel (12) is formed in the vertical center of the light source processing mechanism (1), the bottom of the light source channel (12) is arranged opposite to the LED lamp (4), and the top of the light source channel (12) is provided with a focusing lens (13); a first reference detection part and a second reference detection part are symmetrically arranged on the left and right sides of the vertical center line of the light source channel (12); the heat dissipation mechanism (2) comprises heat dissipation fins (21) and a fan (22) arranged in an up-down manner.

2. The light source reference integrated detection structure with heat dissipation function according to claim 1, characterized in that: The top of the light source processing mechanism (1) is provided with a fiber interface (11) for connecting an optical fiber, and the fiber interface (11) is arranged at the upper end of the light source channel (12).

3. The light source reference integrated detection structure with heat dissipation function according to claim 1, characterized in that: The first reference detection part comprises a first light transmission hole (5), a first filter (6) and a first ultraviolet reference sensor (7), one end of the first light transmission hole (5) is connected in communication with the light source channel (12), the other end of the first light transmission hole (5) is connected in communication with the first ultraviolet reference sensor (7), and the first filter (6) is arranged between the first light transmission hole (5) and the first ultraviolet reference sensor (7).

4. The light source reference integrated detection structure with heat dissipation function according to claim 3, characterized in that: The first filter (6) is stacked by thin films with a refractive index of 2.1-2.

43.

5. The light source reference integrated detection structure with heat dissipation function according to claim 3, characterized in that: The first ultraviolet reference sensor (7) is a 254nm ultraviolet reference light DP-SCOD sensor.

6. The light source reference integrated detection structure with heat dissipation function according to claim 1, characterized in that: The second reference detection part comprises a second light transmission hole (8), a second filter (9) and a second ultraviolet reference sensor (10), one end of the second light transmission hole (8) is connected in communication with the light source channel (12), the other end of the second light transmission hole (8) is connected in communication with the second ultraviolet reference sensor (10), and the second filter (9) is arranged between the second light transmission hole (8) and the second ultraviolet reference sensor (10).

7. The light source reference integrated detection structure with heat dissipation function according to claim 6, characterized in that: The second filter (9) is stacked by thin films with a refractive index of 1.53-1.

70.

8. The light source reference integrated detection structure with heat dissipation function according to claim 6, characterized in that: The second ultraviolet reference sensor (10) is a 280nm ultraviolet reference light DP-SCOD sensor.

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