A ring-shaped LED light source generating device for enzyme-linked detection

Abstract

The utility model relates to enzyme label detection light source technical field, specifically disclose a kind of annular LED light source generating device for enzyme label detection, including annular rack, cooling assembly, multiple LED lamps, temperature sensor, multiple lamp supports and collimating mirror;Collimating mirror is set in the top of annular rack, and is located on the light path of multiple LED lamps, multiple lamp supports are distributed along the circumference of annular rack, LED lamp is installed on lamp support and is relatively collimating mirror and is inclined to set, temperature sensor is set in the position close to LED lamp, cooling assembly is connected with annular rack, annular rack and lamp support are used to conduct the heat generated when LED lamp works to cooling assembly.The utility model structure is compact, is favorable to light, heat dissipation and keeps light source stable work.

Description

Technical Field

[0001] This utility model relates to the field of enzyme-linked immunosorbent assay (ELISA) light source technology, specifically to a ring LED light source generator for ELISA detection. Background Technology

[0002] When an enzyme-linked immunosorbent assay (ELISA) device is working, it typically needs to provide detection light of a specific wavelength to the test reagent and receive and analyze the light signal after it passes through the test reagent through the receiving end.

[0003] In existing ELISA readers, a common luminescence scheme uses a halogen lamp as the light source, employs a filter to obtain the desired wavelength of light, and then guides the filtered light to the detection position via optical fiber. While this scheme can meet basic detection requirements, it still has the following shortcomings in practical use:

[0004] 1. Halogen lamps usually require preheating before they can work stably, and the preheating time is generally 15 to 30 minutes, which affects the detection efficiency;

[0005] 2. The light intensity of halogen lamps varies at different wavelengths, and changes in operating temperature will further affect the stability of light intensity;

[0006] 3. Halogen lamps generate a lot of heat, which can easily have an adverse effect on filters, optical fibers and the surrounding working environment;

[0007] 4. The overall size of the filter switching structure and fiber optic light guiding structure is relatively large, which is not conducive to the miniaturization of the device;

[0008] 5. The lifespan of a halogen lamp is typically about 300 hours, and the number of cycles is typically about 500 to 1000, which is relatively short. Utility Model Content

[0009] Therefore, the technical problem to be solved by this utility model is to overcome the defects in the prior art, thereby providing a ring LED light source generating device for enzyme labeling detection.

[0010] An enzyme-linked immunosorbent assay (ELISA) device for generating a ring-shaped LED light source includes a ring frame, a cooling assembly, multiple LEDs, a temperature sensor, multiple lamp holders, and a collimating lens.

[0011] The collimating lens is positioned above the annular frame and is located on the light emission path of the plurality of LEDs;

[0012] Multiple lamp brackets are installed at intervals on the annular frame and distributed along the circumference of the annular frame;

[0013] The LED light is mounted on the lamp bracket and is tilted relative to the collimating lens so that the light emitted by the LED light propagates toward the collimating lens;

[0014] The temperature sensor is positioned close to the LED light;

[0015] The cooling component is connected to the annular frame, and the annular frame and lamp holder are used to conduct the heat generated by the LED lamp when it is working to the cooling component.

[0016] Furthermore, multiple LED lights, temperature sensors, and lamp holders are integrated and mounted on the annular frame to form an integral light source panel.

[0017] Furthermore, the LEDs are divided into multiple groups according to their center wavelengths, with each group of LEDs having the same center wavelength and different groups of LEDs having different center wavelengths.

[0018] Furthermore, the multiple lamp holders and the LEDs on them are coaxially and evenly distributed along the central axis of the annular frame.

[0019] Furthermore, the lamp bracket is provided with a connecting surface for mounting LED lights, and the connecting surface is an inclined surface that is tilted toward the collimating mirror.

[0020] Furthermore, the connecting surface is inclined at 15° relative to the plane perpendicular to the optical axis of the collimating lens.

[0021] Furthermore, the temperature sensor is disposed in the groove of the lamp holder and is disposed corresponding to the bottom of the LED lamp.

[0022] Furthermore, both the lamp holder and the ring frame are made of metal.

[0023] Furthermore, the three LED lights in the same group are arranged at 120° intervals along the circumference of the annular frame.

[0024] Furthermore, the cooling component is a Peltier component.

[0025] Compared with the prior art, the technical solution of this utility model has the following advantages:

[0026] This invention uses a ring frame with multiple lamp holders to arrange LEDs circumferentially, and tilts the LEDs toward the collimating lens located above the ring frame. This facilitates the convergence of light toward the collimating lens, thereby reducing the size of the collimating lens and the overall space occupied.

[0027] In this invention, multiple LED lights, temperature sensors, and lamp holders are integrated and mounted on a ring frame to form an integral light source disk, which is convenient for installation and replacement, has a compact structure, and also helps to ensure the relative positional accuracy between each LED light and the collimating lens.

[0028] This invention places a temperature sensor near the LED lamp and forms a heat transfer and heat dissipation path through a cooling component, a ring frame, and a lamp holder, which helps to reduce the impact of heat generated when the LED lamp is working and maintain the light source generating device in a relatively stable operating temperature state.

[0029] This invention uses LED lights as the light source. Compared with traditional halogen lamp solutions, it can be used without preheating, and the lifespan of LED lights can typically reach 50,000 to 80,000 hours, which helps to improve detection efficiency and extend service life. Attached Figure Description

[0030] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0031] Figure 1 This is a schematic diagram of a ring LED light source generator for enzyme-linked immunosorbent assay (ELISA).

[0032] Figure 2 This is a schematic diagram showing the distribution of LED lights on the base plate;

[0033] Figure 3 for Figure 2 Side view;

[0034] Figure 4 for Figure 3 A cross-sectional view of the AA plane;

[0035] Figure 5 This is a schematic diagram of the base plate structure;

[0036] Figure 6 A schematic diagram of the ring LED light source generator in operation;

[0037] Figure 7 This is a schematic diagram showing the light emitted by an LED light after passing through a collimating lens.

[0038] Figure 8 This is a schematic diagram showing the light from an LED light incident on a collimating lens when the light is not tilted.

[0039] Figure 9 This is a schematic diagram showing the light from an LED light incident on a collimating lens when the light is tilted at 15°.

[0040] Explanation of reference numerals in the attached figures:

[0041] 1. Circular frame; 101-Base plate; 102-Circular baffle; 2. Cooling assembly; 3. LED light; 4. Temperature sensor; 5. Light bracket; 6. Collimating lens. Detailed Implementation

[0042] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0043] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," 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 this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0044] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0045] Furthermore, the technical features involved in the different embodiments of this utility model described below can be combined with each other as long as they do not conflict with each other.

[0046] like Figures 1 to 9 As shown, this embodiment discloses a ring LED light source generating device for enzyme labeling detection, including a ring frame 1, a cooling component 2, multiple LED lamps 3, a temperature sensor 4, multiple lamp supports 5, and a collimating lens 6.

[0047] The annular frame 1 serves as the basic supporting structure for the entire light source generating device, used to install and support multiple LED lights 3, temperature sensors 4, lamp holders 5, and related components. Preferably, the annular frame 1 includes a base plate 101 and an annular baffle 102 disposed around the periphery of the base plate 101.

[0048] In this embodiment, the base plate 101 is preferably an annular support member with multiple toothed protrusions formed on its periphery. Its circumferential area is used to mount multiple LED lights 3, lamp holders 5, and temperature sensors 4. The multiple LED lights 3 are mounted on the base plate 101 via lamp holders 5, which are spaced apart circumferentially along the base plate 101, thus forming a ring distribution of multiple LED lights 3 around the central area of ​​the base plate 101. With this structure, the base plate 101 provides a uniform mounting surface for the multiple LED lights 3 and lamp holders 5, making it easier to maintain consistency in the circumferential mounting position, mounting angle, and relative spacing of each LED light 3. This helps ensure the uniformity of the light emission direction of the multiple LED lights 3 and the stability of the overall lighting distribution.

[0049] Combination Figure 5 As shown, the outer periphery of the base plate 101 forms multiple circumferential distribution areas corresponding to the installation positions of the lamp brackets 5, so that multiple lamp brackets 5 can be installed at intervals along the circumference of the base plate 101; the intervals formed between adjacent circumferential distribution areas can reserve structural spacing for adjacent lamp brackets 5 and their LED lamps 3, which is beneficial to take into account the circumferential arrangement and installation requirements of multiple LED lamps 3 in a limited space.

[0050] Preferably, the base plate 101 also serves as a positional reference for multiple components. Specifically, the lamp bracket 5, temperature sensor 4, and corresponding LED lamps 3 are all positioned using the base plate 101 as the mounting base. This helps maintain a stable vertical positional relationship between the multiple LED lamps 3 and the upper collimating lens 6 after assembly. Especially during the overall installation, disassembly, and maintenance of the integrated light source panel, the base plate 101 can simultaneously support multiple LED lamps 3, temperature sensor 4, and lamp bracket 5, ensuring good integrity of the light source assembly during assembly and disassembly, and reducing installation errors caused by repeated adjustments of individual components.

[0051] In addition to its supporting function, the base plate 101 preferably also serves as a heat conduction component. Since multiple LEDs 3 are mounted on the base plate 101 via lamp brackets 5, the heat generated during the operation of the LEDs 3 can be transferred to the base plate 101 via the lamp brackets 5, and then conducted from the base plate 101 to other parts of the ring frame 1 and the cooling components 2. In other words, the base plate 101 is not only the mounting foundation for multiple light source components, but also an important intermediate structure for transferring heat from the upper light source area to the lower cooling area. By simultaneously designing the base plate 101 as both a mounting support and a heat-conducting transition component, it is beneficial to balance lighting stability and thermal management effects without significantly increasing structural complexity.

[0052] An annular baffle 102 is disposed around the periphery of the base plate 101, and preferably is an annular enclosure structure extending upward along the periphery of the base plate 101. The annular baffle 102 serves two purposes: firstly, it encloses the periphery of the base plate 101, improving the overall structural integrity of the annular frame 1; secondly, it defines the corresponding area of ​​the upper collimating lens 6, maintaining a relatively stable spatial relationship between the collimating lens 6 and the multiple LED lights 3. The collimating lens 6 is positioned above the annular baffle 102 and along the light path of the multiple LED lights 3, allowing the light emitted by the multiple LED lights 3 to converge towards the collimating lens 6 from bottom to top.

[0053] With the above structure, the base plate 101 and the annular baffle 102 cooperate with each other, so that the annular frame 1 can provide a centralized and stable mounting base for multiple LED lights 3, lamp brackets 5 and temperature sensors 4, and can also define the mounting area corresponding to the collimating lens 6 above, and further form a concentrated light-gathering path from bottom to top, which is conducive to improving the structural compactness, assembly consistency and temperature stability of the entire light source generating device.

[0054] Preferably, the multiple lamp holders 5 and the LED lamps 3 on them are coaxially and evenly distributed along the central axis of the annular frame 1. This arrangement has two advantages: firstly, it allows the multiple LED lamps 3 to be concentrated around the central area, forming a compact annular structure for the entire light source generating device; secondly, it allows the light emitted by each LED lamp 3 to converge towards the corresponding collimating lens 6 above, thereby reducing the lateral space occupied and providing conditions for miniaturized arrangement inside the enzyme labeling detection device.

[0055] Each lamp holder 5 is equipped with at least one LED lamp 3, which is tilted relative to the collimating lens 6 so that the light emitted by the LED lamp 3 propagates towards the collimating lens 6. Specifically, the lamp holder 5 has a connecting surface for mounting the LED lamp 3, which is an inclined surface tilted towards the collimating lens 6. The LED lamp 3 is mounted on this connecting surface, thereby forming a preset tilt angle. Compared with the LED lamp 3 being positioned directly upwards, the above-mentioned tilted mounting method allows the light output direction of the LED lamp 3 to be better pointed towards the collimating lens 6 above, thereby improving the effective light gathering degree and reducing the size requirement of the collimating lens 6 under the same light gathering requirements, which is conducive to further compacting the overall structure.

[0056] In this embodiment, the connecting surface is inclined at 15° relative to the plane perpendicular to the optical axis of the collimating lens 6. Figure 8 and Figure 9As shown, with the LED light 3 emission angle of 100°, compared with the forward illumination method, the 15° tilted illumination method can reduce the diameter of the collimating lens 6 while meeting the light gathering requirements. Under the parameter conditions corresponding to this embodiment, the diameter of the collimating lens 6 can be reduced by about 24%, thereby reducing the volume of the upper optical components and reducing the overall space occupation.

[0057] In this embodiment, multiple LEDs 3 are divided into groups according to their center wavelength. Each group of LEDs 3 has the same center wavelength, while different groups of LEDs 3 have different center wavelengths to meet the detection requirements of different wavelengths. Preferably, three LEDs 3 in the same group are arranged at 120° intervals along the circumference of the annular frame 1. This grouping arrangement of the same wavelength is beneficial because the corresponding group provides light when the required detection wavelength is needed, thus forming a distribution of the same wavelength light source around the central area in the structure, which facilitates the light gathering requirement at the corresponding wavelength. At the same time, different groups correspond to different center wavelengths, which also facilitates the implementation of multi-wavelength detection configuration on the same integrated light source panel.

[0058] Multiple LEDs 3, temperature sensors 4, and lamp holders 5 are integrated and mounted on the annular frame 1 to form an integrated light source disk. Preferably, the multiple LEDs 3, temperature sensors 4, and lamp holders 5 are integrated and mounted on the base plate 101, and together with the annular baffle 102, form an integrated light source disk. This structure ensures a stable relative positional relationship between the multiple LEDs 3, lamp holders 5, and temperature sensors 4, which helps guarantee the installation accuracy and light output consistency of the multiple LEDs 3 relative to the collimating lens 6. Simultaneously, the integrated light source disk facilitates overall installation, disassembly, and maintenance, thereby avoiding installation errors, angle deviations, or height deviations caused by the individual disassembly and assembly of a single LED 3.

[0059] The collimating lens 6 is located on the light-emitting path of the multiple LEDs 3, and is used to collimate and focus the light emitted by the multiple LEDs 3, so that the light is output along the detection direction. During operation, the light emitted by the multiple LEDs 3 propagates towards the collimating lens 6, and after being processed by the collimating lens 6, forms an output beam that meets the detection requirements. The output beam then passes through the test reagent and is received and analyzed by the receiving end. Because the multiple LEDs 3 are arranged in a ring around the circumference, and the light-emitting direction of the LEDs 3 is towards the same collimating lens 6 above, the light can be collected and output in a relatively concentrated space, which helps to reduce the installation space occupied by traditional filter switching mechanisms and fiber optic light guide structures.

[0060] Temperature sensor 4 is positioned close to LED lamp 3. Preferably, temperature sensor 4 is positioned within a groove in lamp holder 5, corresponding to the bottom of LED lamp 3, for monitoring the temperature of LED lamp 3 during operation. Because temperature sensor 4 is positioned close to LED lamp 3, it can reflect the heating status of LED lamp 3 more promptly, which helps to improve the targeting of temperature monitoring.

[0061] The cooling component 2 is connected to the annular frame 1 and is used to dissipate the heat generated by the LED lamp 3 during operation. In this embodiment, the cooling component 2 is preferably a Peltier assembly. Both the lamp holder 5 and the annular frame 1 are preferably made of metal, and the heat generated by the LED lamp 3 during operation can be quickly conducted to the cooling component 2 through the lamp holder 5 and the annular frame 1. Furthermore, in the preferred structure of the annular frame 1 including the base plate 101 and the annular baffle 102, the heat generated by the LED lamp 3 during operation can also be conducted to the cooling component 2 through the lamp holder 5, the base plate 101, and the annular baffle 102, thereby forming a heat transfer path from the LED lamp 3 to the cooling component 2. Preferably, the cooling component 2 continues to operate after the equipment is started, keeping the entire component in a constant temperature operating state, thereby reducing the impact of the temperature rise of the LED lamp 3 during operation on the light output stability.

[0062] This invention uses an LED lamp 3 as the light source. Compared to traditional halogen lamps, it can be put into use without preheating and has a longer lifespan. Halogen lamps typically require a preheating time of 15-30 minutes, have a lifespan of approximately 300 hours, and can be used approximately 500-1000 times. In contrast, the LED lamp 3 requires no preheating and typically has a lifespan of 50,000-80,000 hours, essentially unaffected by the number of uses. Therefore, this invention not only improves detection startup efficiency but also reduces the frequency of light source maintenance and replacement.

[0063] In summary, this utility model uses a ring frame with multiple lamp holders to arrange LED lights circumferentially, and tilts the LED lights toward the collimating lens located above the ring frame. This facilitates the convergence of light toward the collimating lens, thereby reducing the size of the collimating lens and the overall space occupied.

[0064] In this invention, multiple LED lights, temperature sensors, and lamp holders are integrated and mounted on a ring frame to form an integral light source disk, which is convenient for installation and replacement, has a compact structure, and also helps to ensure the relative positional accuracy between each LED light and the collimating lens.

[0065] This invention places a temperature sensor near the LED lamp and forms a heat transfer and heat dissipation path through a cooling component, a ring frame, and a lamp holder, which helps to reduce the impact of heat generated when the LED lamp is working and maintain the light source generating device in a relatively stable operating temperature state.

[0066] This invention uses LED lights as the light source. Compared with the traditional halogen lamp solution, it can be used without preheating, and the LED lights have a long service life, which helps to improve detection efficiency and extend service life.

[0067] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the protection scope of this invention.

Claims

1. An annular LED light source generating device for enzyme-linked detection, characterized in that, It includes a ring frame (1), a cooling assembly (2), multiple LED lights (3), a temperature sensor (4), multiple lamp holders (5), and a collimating lens (6); The collimating lens (6) is positioned above the annular frame (1) and is located on the light output path of the plurality of LED lights (3); Multiple lamp brackets (5) are installed at intervals on the annular frame (1) and distributed along the circumference of the annular frame (1); The LED lamp (3) is mounted on the lamp bracket (5) and is tilted relative to the collimating lens (6) so that the light emitted by the LED lamp (3) propagates toward the collimating lens (6); The temperature sensor (4) is located near the LED light (3); The cooling component (2) is connected to the ring frame (1), and the ring frame (1) and the lamp bracket (5) are used to conduct the heat generated by the LED lamp (3) when it is working to the cooling component (2).

2. The ring LED light source generator for enzyme-linked immunosorbent assay (ELISA) according to claim 1, characterized in that, Multiple LED lights (3), temperature sensors (4) and lamp brackets (5) are integrated and installed on the ring frame (1) to form an integral light source disk.

3. The ring LED light source generator for enzyme-linked immunosorbent assay (ELISA) according to claim 2, characterized in that, The LEDs (3) are divided into multiple groups according to their center wavelengths. The center wavelengths of the LEDs (3) in each group are the same, while the center wavelengths of the LEDs (3) in different groups are different.

4. The ring LED light source generator for enzyme-linked immunosorbent assay (ELISA) according to claim 1, characterized in that, Multiple lamp holders (5) and their LED lamps (3) are coaxially and uniformly distributed along the central axis of the annular frame (1).

5. The ring LED light source generator for enzyme-linked immunosorbent assay (ELISA) according to claim 1, characterized in that, The lamp bracket (5) is provided with a connecting surface for mounting LED lamps (3), and the connecting surface is an inclined surface that is tilted toward the collimating mirror (6).

6. The ring LED light source generator for enzyme-linked immunosorbent assay (ELISA) according to claim 5, characterized in that, The connecting surface is inclined at 15° relative to the plane perpendicular to the optical axis of the collimating lens (6).

7. The ring LED light source generator for enzyme-linked immunosorbent assay (ELISA) according to claim 1, characterized in that, The temperature sensor (4) is disposed in the groove of the lamp bracket (5) and is disposed corresponding to the bottom of the LED lamp (3).

8. The ring LED light source generator for enzyme-linked immunosorbent assay (ELISA) according to claim 1, characterized in that, Both the lamp holder (5) and the ring frame (1) are made of metal.

9. The ring LED light source generator for enzyme-linked immunosorbent assay (ELISA) according to claim 3, characterized in that, The three LED lights (3) in the same group are arranged at 120° intervals along the circumference of the annular frame (1).

10. The ring LED light source generator for enzyme-linked immunosorbent assay (ELISA) according to claim 1, characterized in that, The cooling component (2) is a Peltier component.

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