Stable light source assembly for detection of chemiluminescence analyzer

Abstract

The utility model provides a stable light source assembly for detection of a chemiluminescence analyzer, which comprises a base, a PCB (printed circuit board) and a battery, and the battery and the PCB are connected and are both mounted in the base; the LED light source assembly comprises an LED lamp, an attenuation sheet, an optical filter, a detection unit, an optical diffusion sheet and a lamp holder with a mounting cavity and a cavity; the LED lamp and the attenuation piece are arranged in the installation cavity, an installation groove is formed in the upper end of the lamp holder, the installation groove is connected with the cavity through a first communication hole, the installation cavity is connected with the cavity through a second communication hole, the optical diffusion piece is fixedly arranged in the installation groove, the detection unit is arranged at the bottom of the cavity, and the LED lamp and the detection unit are connected with the PCB. The disc-type chemiluminescence analyzer calibration device is mainly used for calibration of a disc-type chemiluminescence analyzer, and can effectively solve the technical problems that in the prior art, attenuated light sources are concentrated, uniform light spots are not easy to form, and the calibration effect is poor.

Description

Technical Field

[0001] The utility model relates to the technical field of luminescent immunoanalyzer detection, in particular to a stable light source component for chemiluminescent analyzer detection. Background Art

[0002] The chemiluminescence immunoassay analyzer needs to be calibrated before use due to issues such as assembly process.

[0003] Currently, when calibrating, one method is to use reagents with known analytical concentrations to calibrate the linearity, repeatability, and inter-instrument difference of the analyzer, but the luminous intensity stability of chemical reagents is low; the other method is to use scintillation crystals containing C14 as standard light sources to calibrate them, but this light source is very expensive to produce and contains radioactivity.

[0004] The utility model with application number: CN201020223937.2 discloses a standard light source for calibrating a chemiluminescence analyzer, which includes a housing; a light emitting diode, used as a light source; a silicon photodiode, used to receive the light emitted by the light emitting diode and convert it into an electrical signal; a light shielding tube, used to prevent the light between each light emitting diode from propagating mutually; a light attenuation sheet, used to attenuate the light emitted by the standard light source; a circuit board, used to supply power to the standard light source, photoelectric detection and light intensity adjustment, etc.; a power supply module, used to supply power to the standard light source. The light shielding tube and the light attenuation sheet are adhered to the inside of the housing, and the light emitting diode and the silicon photodiode are fixed on the circuit board.

[0005] The utility model can realize the inspection of the analyzer in actual use, and obtain a standard and stable light source after attenuation of the light source. However, it is found in actual use that the attenuated light source is relatively concentrated and it is not easy to form a uniform light spot, and the calibration effect still needs to be improved. Utility Model Content

[0006] The utility model aims to provide a stable light source component for chemiluminescence analyzer detection, which is mainly used for calibration of disk-type chemiluminescence analyzer and can effectively solve the technical problems in the prior art that the attenuated light source is relatively concentrated, it is difficult to form a uniform light spot, and the calibration effect is poor.

[0007] In order to solve the above technical problems, the technical solution adopted by the utility model is:

[0008] A stable light source assembly for chemiluminescence analyzer detection, comprising a base, a PCB circuit board and a battery, wherein the battery and the PCB circuit board are connected and both are installed in the base;

[0009] This embodiment also includes an LED light source assembly, which includes an LED lamp, an attenuation plate, a filter, a detection unit, an optical diffuser, and a lamp holder having a mounting cavity and a chamber;

[0010] The LED lamp and the attenuation sheet are arranged in the installation cavity, the upper end of the lamp holder is provided with an installation groove, the installation groove is connected to the chamber through a first connecting hole, the installation cavity is connected to the chamber through a second connecting hole, the optical diffusion sheet is fixedly arranged in the installation groove, the detection unit is arranged at the bottom of the chamber, and the LED lamp and the detection unit are connected to the PCB circuit board;

[0011] The base is in a disc-like structure, and has the same structure as the reagent disc seat of the analyzer.

[0012] Wherein, the detection unit is a silicon photodiode.

[0013] Furthermore, the LED light source assembly also includes a spring, which is located in the installation cavity and is sleeved on the LED lamp. One end of the spring contacts the end of the LED lamp, and the other end contacts the filter and then contacts the attenuation plate to fix the filter on the side wall of the installation cavity.

[0014] Wherein, the battery is a rechargeable lithium battery.

[0015] Furthermore, a cover plate is fixedly connected to the base, and a clearance hole is arranged on the cover plate at a position corresponding to the optical diffuser.

[0016] Wherein, a clearance groove is arranged on the cover plate, and a power switch passing through the clearance groove is arranged on the PCB circuit board.

[0017] Further optimized, the lamp holder is made of opaque material.

[0018] The cover plate and the base are connected by snap fasteners.

[0019] Compared with the prior art, the utility model has the following beneficial effects:

[0020] In actual use, the utility model provides a light source through an arranged LED lamp, and attenuates the brightness through an attenuation sheet. After passing through a filter, light of a specific wavelength enters the chamber through the second connecting hole. Since a silicon photodiode is arranged in the chamber, the brightness inside the chamber can be detected in real time whether the brightness reaches a preset value. At the same time, the LED light is adjusted through an adjusting circuit on a PCB circuit board so that the brightness reaches the preset value. The adjusted light passes through the first connecting hole and is diffused through an optical diffuser to form a uniform light spot. In this way, a stable and standard-compliant stable light source can be obtained. At this time, the luminescent immunoassay analyzer calculates the difference between the light value and the preset value according to the detected light spot and adjusts to complete the instrument detection calibration. The utility model can effectively solve the technical problems in the prior art that the attenuated light source is relatively concentrated, it is not easy to form a uniform light spot, and the calibration effect is poor. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solution of the implementation mode of the utility model, the drawings required for use in the implementation mode will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0022] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0023] Figure 2 For this utility model Figure 1 Schematic diagram of the structure after the cover is removed.

[0024] Figure 3 It is an isometric side sectional view of the utility model.

[0025] Figure 4 It is a schematic diagram of the overall structure of the LED light source assembly of the utility model.

[0026] Reference numerals:

[0027] 101 base, 102 PCB circuit board, 103 battery, 104 LED light source assembly, 105 LED lamp, 106 filter, 107 detection unit, 108 optical diffuser, 109 mounting cavity, 110 chamber, 111 lamp holder, 112 mounting slot, 113 first connecting hole, 114 second connecting hole, 115 cover plate, 116 yield slot, 117 power switch, 118 attenuation plate. DETAILED DESCRIPTION

[0028] In the following, only some exemplary embodiments are briefly described. As those skilled in the art will appreciate, the described embodiments may be modified in various ways without departing from the spirit or scope of the embodiments of the present invention. Therefore, the drawings and descriptions are considered to be exemplary and non-restrictive in nature.

[0029] In the description of the embodiments of the present invention, it should be understood that the terms "length", "vertical", "horizontal", "top", "bottom", etc. indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the embodiments of the present invention.

[0030] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the embodiments of the present utility model, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.

[0031] In the embodiments of the present utility model, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or a communication; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments of the present utility model can be understood according to specific circumstances.

[0032] In the embodiments of the present utility model, unless otherwise clearly specified and limited, the first feature being "above" or "below" the second feature may include the first and second features being in direct contact, or may include the first and second features not being in direct contact but being in contact through another feature between them. Moreover, the first feature being "above", "above" and "above" the second feature includes the first feature being directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. The first feature being "below", "below" and "below" the second feature includes the first feature being directly above and obliquely above the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0033] The disclosure below provides many different embodiments or examples for realizing different structures of the embodiments of the present utility model. In order to simplify the disclosure of the embodiments of the present utility model, the components and settings of specific examples are described below. Of course, they are only examples, and the purpose is not to limit the embodiments of the present utility model. In addition, the embodiments of the present utility model can repeat reference numbers and / or reference letters in different examples, and this repetition is for the purpose of simplification and clarity, and does not itself indicate the relationship between the various embodiments and / or settings discussed.

[0034] The embodiments of the present utility model are described in detail below with reference to the accompanying drawings.

[0035] See also Figure 1-Figure 4 , this embodiment discloses a light source assembly, specifically a stable light source assembly for chemiluminescence analyzer detection, including a base 101, a PCB circuit board 102 and a battery 103, the battery 103 and the PCB circuit board 102 are connected and both installed in the base 101;

[0036] The present embodiment further includes an LED light source assembly 104, which includes an LED lamp 105, an attenuation plate 118, a filter 106, a detection unit 107, an optical diffuser 108, and a lamp holder 111 having a mounting cavity 109 and a chamber 110;

[0037] The LED lamp 105 and the attenuation sheet 118 are arranged in the installation cavity 109, the upper end of the lamp holder 111 is provided with a mounting groove 112, the mounting groove 112 is connected to the chamber 110 through a first connecting hole 113, the installation cavity 109 is connected to the chamber 110 through a second connecting hole 114, the optical diffuser 108 is fixedly arranged in the mounting groove 112, the bottom of the chamber 110 is provided with the detection unit 107, and the LED lamp 105 and the detection unit 107 are connected to the PCB circuit board 102;

[0038] The base 101 is a disc-shaped structure, and the base 101 has the same structure as the reagent disc seat of the analyzer.

[0039] The detection unit 107 is a silicon photodiode.

[0040] In actual use, the utility model provides a light source through the set LED lamp 105, and attenuates the brightness through the attenuation plate 118. After passing through the filter 106, the light of a specific wavelength passes through the second connecting hole 114 and enters the chamber 110. Since a silicon photodiode is provided in the chamber 110, the brightness inside the chamber 110 can be detected in real time to see whether the brightness reaches a preset value. At the same time, the LED lamp 105 is adjusted by the adjustment circuit on the PCB circuit board 102 so that the brightness reaches the preset value. The adjusted light passes through the first connecting hole 113 and is diffused by the optical diffuser 108 to form a uniform light spot. In this way, a stable and standard stable light source can be obtained. At this time, the luminescent immunoassay analyzer calculates the difference between the light value and the preset value according to the detected light spot and adjusts to complete the instrument detection calibration. The utility model can effectively solve the technical problems in the prior art that the attenuated light source is relatively concentrated, it is not easy to form a uniform light spot, and the calibration effect is poor.

[0041] It should be noted that in this embodiment, an adjustment circuit is provided on the PCB circuit board 102 for adjusting the brightness of the LED lamp 105 .

[0042] In this embodiment, the base 101 is a disc-shaped structure, and the base 101 has the same structure as the reagent disc seat of the analyzer, so that the light source assembly can be directly placed in the analyzer.

[0043] Among them, in actual use, since the filter 106 is relatively small, a card-mounting method is generally adopted when installing the filter 106, but it is very inconvenient during installation. Therefore, in this embodiment, the LED light source assembly 104 also includes a spring, which is located in the installation cavity 109 and is sleeved on the LED lamp 105. One end of the spring contacts the end of the LED lamp 105, and the other end contacts the filter 106 and then contacts the attenuation plate 118 to fix the filter 106 on the side wall of the installation cavity 109.

[0044] The filter 106 is fixed by a spring, which makes it more convenient to install the filter 106 and the attenuation plate 118.

[0045] The battery 103 is a rechargeable lithium battery.

[0046] Furthermore, a cover plate 115 is fixedly connected to the base 101 , and a clearance hole is arranged on the cover plate 115 at a position corresponding to the optical diffuser 108 .

[0047] In actual use, a clearance groove 116 is provided on the cover plate 115 , and a power switch 117 passing through the clearance groove 116 is provided on the PCB circuit board 102 .

[0048] The lamp holder 111 is made of light-proof material.

[0049] Furthermore, the cover plate 115 is connected to the base 101 by means of a buckle, and in actual use, a screw connection can also be used.

[0050] Although the preferred embodiments of the present invention have been described, those skilled in the art may make other changes and modifications to these embodiments once they have learned the basic creative concept. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications falling within the scope of the present invention.

[0051] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. It should be pointed out that any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A stable light source assembly for chemiluminescence analyzer detection, comprising a base, a PCB circuit board and a battery, wherein the battery and the PCB circuit board are connected and both are installed in the base; characterized in that: Also included is an LED light source assembly, which includes an LED lamp, an attenuation plate, a filter, a detection unit, an optical diffuser, and a lamp holder having a mounting cavity and a chamber; The LED lamp and the attenuation sheet are arranged in the installation cavity, the upper end of the lamp holder is provided with an installation groove, the installation groove is connected to the chamber through a first connecting hole, the installation cavity is connected to the chamber through a second connecting hole, the optical diffusion sheet is fixedly arranged in the installation groove, the detection unit is arranged at the bottom of the chamber, and the LED lamp and the detection unit are connected to the PCB circuit board; The base is in a disc-like structure, and has the same structure as the reagent disc seat of the analyzer.

2. A stable light source assembly for chemiluminescence analyzer detection according to claim 1, characterized in that: The detection unit is a silicon photodiode.

3. The stable light source assembly for chemiluminescence analyzer detection according to claim 1, characterized in that: The LED light source assembly also includes a spring, which is located in the installation cavity and is sleeved on the LED lamp. One end of the spring contacts the end of the LED lamp, and the other end contacts the filter and then contacts the attenuation plate to fix the filter on the side wall of the installation cavity.

4. The stable light source assembly for chemiluminescence analyzer detection according to claim 1, characterized in that: The battery is a rechargeable lithium battery.

5. The stable light source assembly for chemiluminescence analyzer detection according to claim 1, characterized in that: A cover plate is fixedly connected to the base, and a clearance hole is arranged on the cover plate at a position corresponding to the optical diffuser.

6. A stable light source assembly for chemiluminescence analyzer detection according to claim 5, characterized in that: The cover plate is provided with a recess, and the PCB circuit board is provided with a power switch passing through the recess.

7. A stable light source assembly for chemiluminescence analyzer detection according to any one of claims 1 to 6, characterized in that: The lamp holder is made of light-proof material.

8. The stable light source assembly for chemiluminescence analyzer detection according to claim 5, characterized in that: The cover plate and the base are connected by buckles.

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