Full-automatic biochemical analyzer

Abstract

The utility model relates to the technical field of biochemical analysis, and discloses a full-automatic biochemical analyzer which comprises a rack, reagent management modules, an incubation module and stirring modules are sequentially arranged on the upper layer of the rack in the length direction, the two reagent management modules are arranged on one side of the incubation module in parallel, and the two stirring modules are arranged on the other side of the incubation module in parallel; the rack is provided with a pick-and-place position on one side, provided with the stirring module, of the incubation module, and the pick-and-place position is used for picking and placing a kit into the reagent management module of the adjacent analyzer during parallel operation. The rack is provided with a pick-and-place position on one side, where the stirring module is arranged, of the incubation module, when the analyzer A and the analyzer B are used in parallel, the reagent management modules of the analyzer A are located on the parallel operation side, and the two reagent management modules of the analyzer A, especially the reagent management module close to the back, can be taken and placed through the pick-and-place position of the analyzer B; the taking and placing path of the kit is shortened, and the kit is convenient to take and place during parallel operation.

Description

Technical Field

[0001] The utility model relates to the technical field of biochemical analysis, and more specifically to a full-automatic biochemical analyzer. Background Art

[0002] In the prior art, the upper layer of the fully automatic biochemical analyzer is provided with an incubation module, a photometry module, a sample needle module, a reagent needle module, a reagent management module, a stirring module and a cleaning module, and the lower layer is provided with a liquid circuit module and an electronic control module.

[0003] Before the test, the test kit is placed in the reagent management module; during the test, the sample needle module adds the sample to the incubation module, the reagent needle module extracts the reaction reagent from the reagent management module, and adds the reaction reagent to the incubation module, so that the sample and the reaction reagent undergo an incubation reaction. At the same time, the stirring module is used to stir the sample and the reaction reagent to fully react. After the incubation is completed, the reactant will be transferred through the reagent needle module, and the incubation module will be cleaned using the cleaning module.

[0004] In high-speed biochemical analysis, due to the high test speed, a dual reagent management module is usually used to meet the reagent loading requirements. The dual reagent management modules are arranged in parallel on one side of the incubation module, and the other side of the incubation module is provided with a stirring module, a light measuring module, etc. Figure 1 When the analyzer is used alone, reagent cartridges can be placed and retrieved from one side of the reagent management module. However, when used in parallel, the reagent management modules are larger, and the reagent management modules located on the parallel side, especially those located relatively far back, have a longer path to access the reagent cartridges, making it inconvenient to do so.

[0005] In summary, how to facilitate the taking and placing of the reagent kit in the reagent management module of the analyzer during parallel operation is an urgent problem to be solved by those skilled in the art. Utility Model Content

[0006] In view of this, the purpose of the present invention is to provide a fully automatic biochemical analyzer, wherein the rack is provided with a pick-up and placement position on the side where the stirring module is arranged in the incubation module, so as to facilitate the pick-up and placement of the reagent kits of adjacent analyzers when the machines are connected in parallel.

[0007] In order to achieve the above purpose, the present invention provides the following technical solutions:

[0008] A fully automatic biochemical analyzer comprises a frame, wherein the upper layer of the frame is provided with a reagent management module, an incubation module, and a stirring module in sequence along the length direction, two of the reagent management modules are arranged side by side on one side of the incubation module, and two of the stirring modules are arranged side by side on the other side of the incubation module;

[0009] The rack is provided with a pick-and-place position on one side of the incubation module where the stirring module is arranged. The pick-and-place position is used to take and place the reagent kit into the reagent management module of the adjacent analyzer when the analyzers are used in parallel.

[0010] Preferably, the pick-and-place position is a rectangular notch provided on the outer edge of the frame, and the dimension of the rectangular notch in the length direction of the frame is greater than or equal to 100 mm.

[0011] Preferably, the photometric module is located in front of the incubation module on a side where the stirring module is provided, the optical axis of the photometric module passes through the center of the incubation module, and the axial length of the photometric module is 400-500 mm.

[0012] Preferably, the photometric module includes a mounting substrate, on which a lens, a slit and a grating are sequentially provided along the optical axis direction, and the light focused by the lens is irradiated onto the grating through the slit.

[0013] Preferably, the waste liquid module is arranged in front of the incubation module, and the axis of the waste liquid module is offset toward the side close to the reagent management module relative to the axis of the incubation module, so that an inclined baffle is provided at the angle between the rectangular notch and the photometric module and the waste liquid module.

[0014] Preferably, the lower layer of the rack is provided with a liquid circuit module and an electronic control module, the liquid circuit module includes a pure water barrel assembly for holding pure water, an acid-base concentrate bottle for holding acid-base concentrate and an acid-base matching assembly for preparing a cleaning liquid, the acid-base matching assembly is signal-connected to the electronic control module, the acid-base concentrate bottle and the pure water barrel assembly are both connected to the liquid inlet of the acid-base matching assembly, and the liquid outlet of the acid-base matching assembly is connected to the reaction cup cleaning module.

[0015] Preferably, the acid-base concentrate bottle and the pure water barrel assembly are both arranged in front of the frame to facilitate replacement of the acid-base concentrate bottle and maintenance of the pure water barrel assembly.

[0016] Preferably, the electric control module includes a power box assembly, a power control board and several function control boards for respectively controlling the loads of the fluid circuit module, and the function control boards are correspondingly arranged in the functional areas where the loads are located.

[0017] Preferably, the function control board is arranged on a side of the function area relatively close to the outer edge of the frame to facilitate heat dissipation of the function control board.

[0018] Preferably, at least one fan is provided on the rear side of the lower layer of the rack, and the power box assembly is provided with a power box fan.

[0019] The fully automatic biochemical analyzer provided by the present invention has a rack with a pick-up and placement position on the side where the stirring module is arranged in the incubation module. When analyzer A and analyzer B are used in parallel, the reagent management module of analyzer A is located on the parallel side. The two reagent management modules of analyzer A, especially the relatively rear reagent management module, can be used to take and place the reagent kits through the pick-up and placement position of analyzer B, thereby shortening the pick-up and placement path of the reagent kit and facilitating the pick-up and placement of the reagent kit when the analyzers are used in parallel. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are merely embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying any creative work.

[0021] Figure 1 This is a simplified schematic diagram of the layout of a fully automatic biochemical analyzer in the prior art;

[0022] Figure 2 for Figure 1 Schematic diagram of the structure of the fully automatic biochemical analyzer when used in parallel;

[0023] Figure 3 This is a schematic diagram of the upper structure of the fully automatic biochemical analyzer provided by the present invention;

[0024] Figure 4 It is a structural diagram of the lower structure of the fully automatic biochemical analyzer;

[0025] Figure 5 It is a rear view schematic diagram of a fully automatic biochemical analyzer;

[0026] Figure 6 This is a schematic diagram of the structure of the fully automatic analyzer when it is in splicing use;

[0027] Figure 7 Schematic diagram of the structure of the light metering module.

[0028] Figure 1-Figure 7 middle:

[0029] 1-reagent management module; 2-incubation module; 3-stirring module; 4-photometry module; 41-lens; 42-slit; 43-grating; 5-cup cleaning module; 6-waste module; 7-reagent needle module; 8-sample needle module; 9-pick-up and drop-down position;

[0030] 10- Chiller assembly; 11- Water bath circulation assembly; 12- Water inlet assembly; 13- Pure water barrel assembly; 14- Acid and alkali concentrate bottle; 15- Acid and alkali ratio assembly; 16- Main vacuum assembly; 17- Plunger pump assembly; 18- Power supply box assembly; 181- Power supply box fan; 19- Power supply control board; 20- Eight-axis board; 21- Temperature control board; 22- Expansion board; 23- Wire trough; 24- Fan. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0032] The core of the utility model is to provide a fully automatic biochemical analyzer, wherein a rack is provided with a pick-up and placement position on one side of the incubation module where the stirring module is arranged, so as to facilitate the pick-up and placement of reagent kits of adjacent analyzers when the machines are connected in parallel.

[0033] It should be noted that the front mentioned in this application document refers to the side of the analyzer that is relatively close to the operator in the width direction when the analyzer is normally operated, and the rear refers to the side of the analyzer that is relatively far away from the operator in the width direction.

[0034] The fully automatic biochemical analyzer provided by the present invention comprises a frame, wherein the upper layer of the frame is provided with a reagent management module 1, an incubation module 2 and a stirring module 3 in sequence along the length direction, the two reagent management modules 1 are arranged side by side on one side of the incubation module 2, and the two stirring modules 3 are arranged side by side on the other side of the incubation module 2;

[0035] The rack is provided with a pick-up and drop-off position 9 on one side of the incubation module 2 where the stirring module 3 is provided. The pick-up and drop-off position 9 is used to take and place the reagent kit into the reagent management module 1 of the adjacent analyzer when the machines are used in parallel.

[0036] Please refer to Figure 3 A reagent needle module 7 is provided between the reagent management module 1 and the incubation module 2. The reagent needle module 7 is used to extract reagents from the reagent kit of the reagent management module 1 and add the reagents into the reaction cup; a sample needle module 8 is provided behind the incubation module 2. The sample needle module 8 is used to add samples into the reaction cup; the incubation module 2 is used to provide a reaction environment for the reagents and samples, and the stirring module 3 is used to mix the reagents and samples to improve the reaction rate; a photometric module 4 and a reaction cup cleaning module 5 are provided in front of the incubation module 2. The photometric module 4 is used to detect the absorbance of the reactants after the reaction, and the reaction cup cleaning module 5 is used to extract the waste liquid after the reaction and clean the reaction cup.

[0037] Since the reagent management module 1 is arranged in parallel on one side of the rack in the longitudinal direction and the size of the reagent management module 1 is relatively large, when two analyzers are used in parallel, Figure 2 As shown, the reagent management module 1 is located at the connection side of the analyzer, and the reagent collection and placement path is long and difficult.

[0038] In order to facilitate the removal and placement of the reagent kit before testing, the rack is provided with a removal position 9 on the side of the incubation module 2 where the stirring module 3 is provided. The removal position 9 can be set as a notch on the outer edge of the rack, or a recessed portion that is recessed downward on the outer edge of the rack. The removal position 9 is used to facilitate the operator to remove and place the reagent kit into the reagent management module 1 of the adjacent analyzer when the machines are used in parallel.

[0039] Please refer to Figure 6 When analyzer A and analyzer B are used in parallel, the reagent management module 1 of analyzer A is located on the parallel side. Through the pick-and-place position 9 of the rack of analyzer B, the reagent management module 1 of analyzer A, especially the reagent management module 1 relatively at the rear, can be conveniently taken and placed, effectively shortening the reagent reagent taking and placing path and facilitating the taking and placing of the reagent reagent in the parallel situation.

[0040] In this embodiment, a pick-up and placement position 9 is provided on the side of the incubation module 2 where the stirring module 3 is provided. When the machines are used in parallel, the reagent kit can be taken and placed in the reagent management module 1 of the adjacent analyzer through the pick-up and placement position 9 of the analyzer, which shortens the pick-up and placement path of the reagent kit and facilitates the pick-up and placement of the reagent kit when the machines are used in parallel.

[0041] Taking into account the processing and manufacturing issues of the analyzer, the pick-up and placement position 9 is usually set as a notch on the outer edge of the frame. Compared with a downward recessed portion, the work surface of the frame requires less material, and the recessed portion does not need to be processed through stamping or cutting processes, so the material cost and processing cost are lower.

[0042] Preferably, the pick-up and placement position 9 can be set as a rectangular notch provided on the outer edge of the frame, with a regular shape and easy processing. The size of the rectangular notch in the length direction of the frame is greater than or equal to 100 mm, so as to reserve sufficient space and facilitate the operator's pick-up and placement operations, thereby avoiding the removal and placement of the reagent kit affecting the normal operation of other modules on the upper layer of the analyzer, and avoiding the recessed portion occupying the installation space of the liquid path module and the electronic control module on the lower layer of the frame.

[0043] The placement position 9 can be set by increasing the size of the rack or by adjusting the distribution of the modules on the upper layer of the rack.

[0044] The photometric module 4 is located in front of the side of the incubation module 2 where the stirring module 3 is set, that is, in front of the side of the rack where the pick-up and placement position 9 is set. The optical axis direction of the photometric module 4 passes through the center of the incubation module 2. The length of the existing photometric module 4 is 550-650mm. If the overall size of the rack remains unchanged, it is preferred to set the length of the photometric module 4 to 400-500mm, thereby reducing the volume of the photometric module 4 and making room for the pick-up and placement position 9.

[0045] Please refer to Figure 7 The photometric module 4 includes a mounting substrate and a cover. The cover is arranged on the mounting substrate to form a housing of the photometric module 4 in conjunction with the mounting substrate. The mounting substrate is provided with a lens 41, a slit 42, and a grating 43 in sequence along the optical axis. The light emitted by the light source inside the reaction cup passes through the reaction cup and enters the lens 41. The light focused by the lens 41 passes through the slit 42 and is irradiated onto the grating 43. The grating 43 splits the light, and then the photoelectric converter converts the optical signal into an electrical signal.

[0046] In order to reduce the length of the photometric module 4, the lens 41 can be replaced to shorten the focal length of the lens 41 to reduce the distance between the lens 41 and the slit 42, and the model of the grating 43 can be adjusted to shorten the incident length of the grating 43 to reduce the distance from the slit 42 to the grating 43; further, the structure and size of both the mounting base and the cover can be adjusted to reduce the distance between the grating 43 and the outer edge of the substrate of the mounting substrate.

[0047] For example, in a specific embodiment, the distance from the lens 41 to the slit 42 is shortened by more than 20 mm by replacing the lens 41, the distance from the slit 42 to the grating 43 is shortened by more than 30 mm by replacing the grating 43, and the distance from the grating 43 to the outer edge of the substrate is shortened by more than 30 mm by optimizing the structure of the mounting substrate and the cover, thereby shortening the length of the photometric module 4 by more than 80 mm.

[0048] Considering that the photometric module 4 and the waste liquid module 6 for holding the waste liquid after the reaction are provided on the side of the pick-up and placement position 9 relatively close to the incubation module 2, and the waste liquid module 6 is provided in front of the incubation module 2, in order to avoid accidental collision between the operator and the photometric module 4 when taking the reagent kit out, the front edge of the photometric module 4 is usually arranged to be flush with the rear side of the pick-up and placement position 9, or the front edge of the photometric module 4 is arranged inward relative to the rear side of the pick-up and placement position 9;

[0049] In order to avoid the operator from accidentally colliding with the waste liquid module 6 when taking and placing, it is preferred to set the axis of the waste liquid module 6 to be offset to the side close to the reagent management module 1 relative to the axis of the incubation module 2, and provide an inclined baffle at the angle between the rectangular notch and the photometric module 4 and the waste liquid module 6. The inclined baffle can be set as an integrated structure with the enclosure on the outside of the work surface to ensure the protective effect of the inclined baffle on the photometric module 4 and the waste liquid module 6.

[0050] On the basis of the above embodiment, the lower layer of the rack is provided with a liquid circuit module and an electronic control module. The liquid circuit module includes a pure water barrel assembly 13 for holding pure water, a bottle 14 for holding acid and alkali concentrate and an acid-base proportioning assembly 15 for preparing a cleaning liquid. The acid-base proportioning assembly 15 is signal-connected to the electronic control module. The acid-base concentrate bottle 14 and the pure water barrel assembly 13 are both connected to the liquid inlet of the acid-base proportioning assembly 15, and the liquid outlet of the acid-base proportioning assembly 15 is connected to the reaction cup cleaning module 5.

[0051] During operation, the acid-base concentrate in the acid-base concentrate bottle 14 and the pure water in the pure water barrel assembly 13 enter the acid-base proportioning assembly 15 through different liquid inlets respectively, and are configured in the acid-base proportioning assembly 15 to form a cleaning liquid. The configured cleaning liquid enters the reaction cup cleaning module 5 through the liquid outlet.

[0052] By adjusting the liquid flow rate of each liquid inlet of the acid-base ratio component 15, the ratio of each component in the cleaning liquid can be adjusted to meet different cleaning liquid configuration requirements.

[0053] The specific structure and model of the pure water barrel assembly 13, the acid-base concentrate bottle 14 and the acid-base matching assembly 15 are determined according to the actual production needs with reference to the existing technology, such as the pure water barrel assembly 13, the acid-base concentrate bottle 14 and the acid-base matching assembly 15 of the existing analyzer.

[0054] In this embodiment, the liquid outlet of the acid-base proportioning component 15 is directly connected to the reaction cup cleaning module 5, eliminating the cleaning liquid storage barrel for holding the configured cleaning liquid, changing the traditional method of preparing first and then using to preparing and using at the same time, reducing the size of the cleaning liquid preparation area and saving installation space in the lower layer of the analyzer.

[0055] After the acid and alkali concentrate in the acid and alkali concentrate bottle 14 is used up, the acid and alkali concentrate bottle 14 needs to be replaced, and the pure water bucket assembly 13 also needs regular maintenance. In order to facilitate replacement and maintenance operations, preferably, the acid and alkali concentrate bottle 14 and the pure water bucket assembly 13 are both arranged in the front of the rack, and the two are arranged close to the front door of the rack. After opening the front door, the acid and alkali concentrate bottle 14 can be replaced and the pure water bucket assembly 13 can be maintained, which facilitates the replacement of the acid and alkali concentrate bottle 14 and the maintenance of the pure water bucket assembly 13.

[0056] Based on the above embodiment, the electronic control module includes a power box assembly 18, a power control board 19 and several functional control boards for respectively controlling the loads of the liquid circuit module. The power box assembly 18 is electrically connected to the power control board 19, and each functional control board is electrically connected to the power control board 19. The wiring harness connecting the above components is arranged in the wire trough 23. In order to reduce the overall volume of the electronic control module, each functional control board is arranged in the functional area where each load is located.

[0057] Please refer to Figure 5The liquid circuit module mainly includes a chiller component 10, a water bath circulation component 11, a water inlet component 12, a pure water barrel component 13, an acid and alkali concentrate bottle 14, an acid and alkali ratio component 15, a main vacuum component 16 and a plunger pump component 17. Among them, the chiller component 10 is used to refrigerate the reagents in the reagent management module 1, the water bath circulation component 11 is used to heat the reaction cup in a water bath to accelerate the reaction between the reagent and the sample, the water inlet component 12 is used to heat the pure water, the main vacuum component 16 is used to aspirate the waste liquid in the waste liquid module 6 to discharge the waste liquid, and the plunger pump component 17 is used for pipetting the reagent needle module 7 and the sample needle module 8;

[0058] The functional control board includes an eight-axis board 20, an expansion board 22, a temperature control board 21, a water quality detection board and a vacuum pressure detection board, among which the eight-axis board 20 is a motor control board, which is mostly arranged in the cleaning liquid configuration area and the pipetting control area with a plunger pump assembly 17, and is used to control the acid-base proportioning valve motor and the plunger pump motor; the expansion board 22 is used to control pumps, valves and other actuators. In order to control the working status of the acid-base proportioning valve and the plunger pump, the cleaning liquid configuration area and the pipetting control area are also provided with an expansion board 22; the temperature control board 21 is arranged in the heating area, and is used to control the heaters of both the water bath heating assembly 11 and the water inlet assembly 12; the water quality detection board is arranged in the water inlet area, and is used to detect and control the water quality of the pure water input into the pure water barrel assembly 13 by the water inlet assembly 12; the vacuum pressure detection board is arranged in the vacuum area, and is used to detect the vacuum degree of the main vacuum assembly 16 to control the discharge of waste liquid.

[0059] In this embodiment, the function control panels are dispersed in the functional areas where the loads are located. Compared with the case where the function control panels are integrated in the electrical control box, the electrical control box structure is eliminated, the overall volume of the electrical control module is reduced, and the space utilization rate of the lower layer of the analyzer is improved. At the same time, the length of the wiring harness from the function control board to the corresponding load can be shortened, the wiring harness cost can be reduced, and wiring is facilitated.

[0060] Preferably, in order to facilitate the heat dissipation of each function control panel, each function control panel can be arranged on the side of the function area relatively close to the outer edge of the rack, which can shorten the heat dissipation path of the function control panel, improve the heat dissipation capacity of the function control panel, and avoid the function control panel from rapidly heating up due to heat generated during operation, thereby ensuring the working performance and life of the function control panel.

[0061] In order to facilitate the rapid discharge of work heat, please refer to Figure 6 At least one fan 24 is provided on the rear side of the lower layer of the rack, and the fan 24 is preferably provided near the function control board. The power box assembly 18 is provided with a power box fan 181. Therefore, the fan 24 can be used to extract the heat from the lower layer of the analyzer to the external environment, and the power box fan 181 can be used to extract the heat in the power box to the external environment to ensure the ambient temperature of the function control board and the power supply.

[0062] The fan 24 and the power box fan 181 are preferably active fans. Their specific quantity, type, model and distribution are determined according to the working heat generation of the functional control board and power supply in actual production, and will not be repeated here.

[0063] The various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referenced to each other.

[0064] The above describes in detail the fully automatic biochemical analyzer provided by the present invention. This article uses specific examples to illustrate the principles and implementation methods of the present invention. The description of the above examples is only intended to help understand the method and core concept of the present invention. It should be noted that those skilled in the art can make various improvements and modifications to the present invention without departing from the principles of the present invention, and such improvements and modifications also fall within the scope of protection of the claims of the present invention.

Claims

1. A fully automatic biochemical analyzer, comprising a frame, wherein the upper layer of the frame is provided with a reagent management module (1), an incubation module (2) and a stirring module (3) in sequence along the length direction, two of the reagent management modules (1) are arranged side by side on one side of the incubation module (2), and two of the stirring modules (3) are arranged side by side on the other side of the incubation module (2). It is characterized by: The rack is provided with a pick-up and placement position (9) on the side of the incubation module (2) where the stirring module (3) is arranged. The pick-up and placement position (9) is used to take and place the reagent kit into the reagent management module (1) of the adjacent analyzer when the machines are used in parallel.

2. The fully automatic biochemical analyzer according to claim 1, characterized in that The pick-and-place position (9) is a rectangular notch provided on the outer edge of the frame, and the dimension of the rectangular notch in the longitudinal direction of the frame is greater than or equal to 100 mm.

3. The fully automatic biochemical analyzer according to claim 2, characterized in that The photometric module (4) is located in front of the incubation module (2) on the side where the stirring module (3) is arranged. The optical axis direction of the photometric module (4) passes through the center of the incubation module (2). The axial length of the photometric module (4) is 400-500 mm.

4. The fully automatic biochemical analyzer according to claim 3, characterized in that The photometric module (4) comprises a mounting substrate, on which a lens (41), a slit (42) and a grating (43) are sequentially provided along an optical axis direction, and light focused by the lens (41) is irradiated onto the grating (43) through the slit (42).

5. The fully automatic biochemical analyzer according to claim 3, characterized in that The waste liquid module (6) is arranged in front of the incubation module (2), and the axis of the waste liquid module (6) is offset relative to the axis of the incubation module (2) toward a side close to the reagent management module (1), so that an inclined blocking rod is provided at the angle between the rectangular notch and the photometric module (4) and the waste liquid module (6).

6. The fully automatic biochemical analyzer according to any one of claims 1 to 5, characterized in that The lower layer of the frame is provided with a liquid circuit module and an electric control module. The liquid circuit module includes a pure water barrel assembly (13) for holding pure water, an acid-base concentrate bottle (14) for holding acid-base concentrate, and an acid-base ratio assembly (15) for preparing a cleaning liquid. The acid-base ratio assembly (15) is signal-connected to the electric control module. The acid-base concentrate bottle (14) and the pure water barrel assembly (13) are both connected to the liquid inlet of the acid-base ratio assembly (15). The liquid outlet of the acid-base ratio assembly (15) is connected to the reaction cup cleaning module (5).

7. The fully automatic biochemical analyzer according to claim 6, characterized in that The acid-base concentrate bottle (14) and the pure water bucket assembly (13) are both arranged in front of the frame, so as to facilitate replacement of the acid-base concentrate bottle (14) and maintenance of the pure water bucket assembly (13).

8. The fully automatic biochemical analyzer according to claim 6, characterized in that: The electric control module comprises a power box assembly (18), a power control board (19), and a plurality of function control boards for respectively controlling the loads of the fluid circuit module, wherein the function control boards are correspondingly arranged in the functional areas where the loads are located.

9. The fully automatic biochemical analyzer according to claim 8, characterized in that The function control board is arranged on a side of the function area relatively close to the outer edge of the frame to facilitate heat dissipation of the function control board.

10. The fully automatic biochemical analyzer according to claim 8, characterized in that: At least one fan (24) is provided on the rear side of the lower layer of the rack, and the power box assembly (18) is provided with a power box fan (181).

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