CN216646541U - Sample analyzer - Google Patents

Abstract

The application discloses a sample analyzer, which comprises a rack, a separate injection mechanism, a liquid supply supporting mechanism and a control panel assembly, wherein the separate injection mechanism, the liquid supply supporting mechanism and the control panel assembly are arranged on the rack; and/or, hold the second air supply structure that the intracavity was equipped with second wind channel structure and was used for supplying air to the second heat dissipation wind channel of second wind channel structure, through setting up control panel subassembly in the first heat dissipation wind channel of first wind channel structure, and/or, will supply the first driving motor setting of liquid supporting mechanism in the second heat dissipation wind channel of second wind channel structure, can dispel the heat alone control panel subassembly and/or first driving motor, avoid control panel subassembly and/or first driving motor's temperature too high, and influence control panel subassembly and/or first driving motor's stability and life's problem.

Description

Sample analyzer

Technical Field

The application relates to the technical field of medical equipment, in particular to a sample analyzer.

Background

A sample analyzer for analyzing a sample generally includes a dispensing mechanism, a liquid supply support mechanism, and a control board assembly for controlling the dispensing mechanism to drive a pipette needle to move between different operating positions and controlling a liquid path support mechanism to supply a power for sucking or discharging a liquid to the pipette needle of the dispensing mechanism.

Wherein, system liquid way supporting mechanism and control panel subassembly can produce a large amount of heats in the course of the work, make system liquid way supporting mechanism and control panel subassembly's high temperature to influence the stability and the life of system liquid way supporting mechanism and control panel subassembly.

SUMMERY OF THE UTILITY MODEL

The embodiment of the application provides a sample analyzer, aims at solving the problem that the stability and the service life of a liquid making path supporting mechanism and/or a control panel component are influenced by overhigh temperature of the liquid making path supporting mechanism and/or the control panel component when the existing sample analyzer works.

The embodiment of the application provides a sample analyzer, includes:

a dispensing mechanism including a moving member and a pipetting needle provided on the moving member; the moving component is used for driving the liquid-transferring needle to move between different operation positions so as to suck or discharge liquid;

the liquid supply supporting mechanism comprises a pipeline communicated between a water tank and the liquid transferring needle, and a first injector is arranged on the pipeline between the water tank and the liquid transferring needle so as to provide power for sucking or discharging liquid for the liquid transferring needle through the first injector; the liquid supply supporting mechanism further comprises a first driving motor, and the first driving motor is in driving connection with the first injector so as to drive the first injector to move;

a control panel assembly for providing control support to the sample analyzer;

the machine frame is provided with a shell, a first air inlet and a first air outlet are formed in the shell, a containing cavity is formed in the shell, and the containing cavity is communicated with the first air inlet and the first air outlet in the shell;

a first air duct structure and a first air supply structure are arranged in the accommodating cavity, the first air duct structure is provided with a first heat dissipation air duct, the first heat dissipation air duct is communicated with a first air inlet and a first air outlet on the shell, the control board assembly is arranged in the first heat dissipation air duct, and the first air supply structure is used for supplying air to the first heat dissipation air duct; and/or the presence of a gas in the gas,

the accommodating cavity is internally provided with a second air duct structure and a second air supply structure, the second air duct structure is provided with a second heat dissipation air duct, the second heat dissipation air duct is communicated with the first air inlet and the first air outlet on the shell, the first driving motor is arranged in the second heat dissipation air duct, and the second air supply structure is used for supplying air to the second heat dissipation air duct.

In some embodiments, the first air duct structure includes a board box disposed in the accommodating cavity, the control board assembly is mounted in the board box, the board box has a first air duct outlet communicated with the first air outlet on the housing and a first air duct inlet communicated with the first air inlet on the housing, and the first air duct inlet and the first air duct outlet are communicated to form the first heat dissipation air duct.

In some embodiments, the control board assembly comprises at least two control boards providing control support for the sample analyzer, the board box comprises two first side boards and two second side boards, the two first side boards are arranged oppositely, the two second side boards are arranged oppositely, a top board and a bottom board are arranged oppositely, at least two control boards are arranged on the inner wall of at least one first side board of the board box at intervals, the first air duct inlet is arranged on at least one first side board, and the first air duct outlet is arranged on at least one second side board.

In some embodiments, the first air duct inlet includes a first inlet and a second inlet, the control board is mounted on an inner wall of one of the first side plates at intervals, the first inlet is located on the first side plate where the control board is not mounted, the second inlet is located on the bottom plate, a heat dissipation gap is formed between the top plate and the control board, the first air duct outlet is provided on the second side plate, and the first air duct outlet is communicated with the heat dissipation gap.

In some embodiments, the second air duct structure includes a panel assembly disposed in the housing, the first driving motor is installed in the panel assembly, the panel assembly has a second air duct outlet communicated with the first air outlet on the housing and a second air duct inlet communicated with the first air inlet on the housing, and the second air duct inlet and the second air duct outlet are communicated to form the second heat dissipation air duct.

In some embodiments, the panel assembly includes a mounting panel and a mounting cover, the mounting panel being mounted to the rack, the mounting panel including opposing first and second sides, the first drive motor being provided on the first side of the mounting panel, the first injector being provided on the second side of the mounting panel; the mounting cover is covered on the second side surface of the mounting panel so that the mounting cover and the mounting panel enclose to form the second heat dissipation air duct; the second air duct inlet is arranged on the mounting panel and is opposite to the first air inlet;

the installation lid is established including the lid apron on the first driving motor to and the lid is established guide plate on the second wind channel entry, the apron is including relative first edge and second edge, one side edge of guide plate with the first edge of apron is connected, in order with the air current water conservancy diversion of second wind channel entry extremely the apron with between the installation panel, the second edge of apron with form between the installation panel the second wind channel export.

In some embodiments, the sample analyzer further includes a carbon dioxide sensor disposed within the housing for detecting a concentration of carbon dioxide within the housing.

In some embodiments, the sample analyzer further comprises a degassing membrane module disposed on the rack, the degassing membrane module disposed on a connection line between the water tank and the pipetting needle; the carbon dioxide sensor is located above the degassing membrane module.

In some embodiments, the sample analyzer further comprises a support member disposed on the frame, the support member being positioned above the degassing membrane assembly, the support member having a pressure sensing plate disposed thereon, the pressure sensing plate being disposed on a connection line between the water tank and the pipetting needle; the carbon dioxide sensor is arranged on the pressure detection plate; the support piece is further provided with a protective cover, and the protective cover is arranged above the pressure detection plate and the carbon dioxide sensor.

In some embodiments, the sample analyzer further comprises an electrolyte analysis assembly comprising a sample receiving location on the trajectory of movement of the pipetting needle for receiving a sample;

the electrolyte analysis assembly is arranged in the third heat dissipation air duct, and the third air supply structure is used for supplying air to the third heat dissipation air duct.

In some embodiments, the electrolyte analysis assembly comprises an electrolyte analysis electrode, an electrolyte analysis controller for providing control support to the electrolyte analysis electrode, a second injector disposed on the conduit between the water reservoir and the electrolyte analysis electrode for driving a flow of liquid within the electrolyte analysis electrode through the second injector, and a second drive motor drivingly connected to the second injector for driving movement of the second injector;

the third heat dissipation air channel comprises a first air channel and a second air channel which are isolated from each other, the electrolyte analysis electrode is arranged in the first air channel, and the electrolyte analysis controller and the second driving motor are arranged in the second air channel.

In some embodiments, a transverse partition plate located above the water tank is arranged in the accommodating cavity, sub-cavities for accommodating the water tank are formed in the accommodating cavity, at least two first air inlets are arranged in the accommodating cavity, at least one first air inlet is communicated with the sub-cavities for accommodating the water tank, and the third air duct structure is arranged above the transverse partition plate; the third air duct structure comprises a third air duct inlet communicated with the first air duct and the second air duct, a second air inlet penetrating through the transverse partition plate is formed in the plate surface of the transverse partition plate, and the second air inlet is communicated with the third air duct inlet and the sub cavity for accommodating the water tank;

the third air duct structure comprises a third air duct outlet communicated with the first air duct, and the third air duct outlet is communicated with the accommodating cavity of the shell; the third air duct structure comprises a fourth air duct outlet communicated with the second air duct, a penetrating second air outlet is formed in the surface of the transverse partition plate, and the second air outlet is communicated with the fourth air duct outlet.

In some embodiments, a baffle plate is further arranged between the water tank and the transverse partition plate, a third air inlet is formed in the baffle plate, and the third air inlet is communicated with the second air inlet; and a filter screen is further arranged in a channel between the second air inlet and the third air inlet, or the third air inlet is provided with the filter screen.

In some embodiments, the third air supply structure comprises a first fan, and the first fan is arranged at the inlet of the third air duct; and an electromagnetic shielding net covers the outlet of the third air duct structure.

In some embodiments, the sample analyzer further comprises a reaction tray assembly disposed on the rack, the reaction tray assembly comprising a reaction cup mounting location, a sample supply track comprising a reagent cup mounting location, and a reagent cartridge assembly for transporting a sample cup; the reaction disc assembly, the reagent bin assembly and the dispensing mechanism are positioned on the same side of the sample supply track; the pipetting needle comprises a sample needle and a reagent needle; the reaction cup mounting position is positioned on the moving tracks of the sample needle and the reagent needle, and the reagent cup mounting position is positioned on the moving tracks of the reagent needle; the sample feeding track is crossed with the moving track of the sample needle; the moving component comprises a first moving mechanism and a second moving mechanism, wherein the first moving mechanism is connected with the sample needle to drive the sample needle to move between the reaction cup installation position and a sample position in the sample supply rail; the second moving mechanism is connected with the reagent needle to drive the reagent needle to move between the reaction cup mounting position and the reagent cup mounting position.

In some embodiments, the number of the reagent needles is two, and the reagent cartridge assembly includes two reagent cartridges, each reagent cartridge corresponds to one reagent needle, each reagent cartridge is located on a moving track of the corresponding reagent needle, and the two reagent cartridges are sequentially distributed in a direction of the sample supply track toward the reaction tray assembly.

In some embodiments, the sample analyzer further comprises an agitation assembly located on the same side of the sample supply track as the reaction tray assembly; the stirring assembly comprises a third moving mechanism and a stirring piece, the third moving mechanism is installed on the rack and connected with the stirring piece to drive the stirring piece to move, the reaction cup installation position of the reaction disk assembly is located on the moving track of the stirring piece, and the stirring piece is used for stirring reaction liquid in the reaction cup.

In some embodiments, the sample analyzer further includes a cleaning assembly, the cleaning assembly includes a first driving mechanism and a cleaning mechanism, the first driving mechanism is disposed on the rack, the first driving mechanism is connected to the cleaning mechanism, the cleaning mechanism is located on a rotation track of a reaction cup on the reaction disk assembly, the cleaning mechanism includes a liquid suction component and a liquid injection component communicated with the liquid supply supporting mechanism, the liquid injection component is used for injecting a cleaning liquid into the reaction cup, the liquid suction component is used for sucking the cleaning liquid cleaned in the reaction cup, and the first driving mechanism is used for driving the cleaning mechanism to move between a position of inserting into the reaction cup and a position of leaving from the reaction cup.

In some embodiments, the washing assembly further comprises:

the suction needle is positioned on the rotating track of the reaction cup on the reaction plate component;

the second moving mechanism is mounted on the rack and connected with the suction needle so as to drive the suction needle to move between positions of inserting into the reaction cup and leaving from the reaction cup;

the vacuum tank is arranged on the rack and is connected with the suction needle through a pipeline; the reaction tray assembly and the vacuum tanks are sequentially distributed in the moving direction of the sample cup on the sample supply rail.

In some embodiments, the sample analyzer further comprises a power supply, a refrigeration assembly, and a waste pump assembly distributed in sequence in a direction of movement of the sample cup on the sample supply track, the power supply, refrigeration assembly, and waste pump assembly being disposed within the receiving cavity; the shell is provided with at least two first air inlets and at least two first air outlets, at least one first air inlet is communicated with the sub-cavity where the power supply is located in the accommodating cavity, at least one first air outlet is communicated with the sub-cavity where the power supply is located, and a second fan is arranged at the first air outlet communicated with the sub-cavity where the power supply is located;

the at least one first air inlet is communicated with the sub-cavity where the refrigeration component is located in the accommodating cavity, the at least one first air outlet is communicated with the sub-cavity where the refrigeration component is located, and a third fan is arranged at the first air outlet communicated with the sub-cavity where the refrigeration component is located;

the waste liquid pump assembly is positioned below the vacuum tank and is connected with the vacuum tank through a pipeline; at least one first air intake with hold the intracavity the sub-cavity at waste liquid pump subassembly place switches on, at least one first air outlet with the sub-cavity at waste liquid pump subassembly place switches on, with the first air outlet that the sub-cavity at waste liquid pump subassembly place switched on is equipped with the fourth fan.

In some embodiments, the sample analyzer further comprises a concentrated detergent dilution barrel disposed on the rack, the concentrated detergent dilution barrel is connected to the liquid injection component through a pipeline, and the concentrated detergent dilution barrel is located between the refrigeration assembly and the waste liquid pump assembly.

In some embodiments, the sample analyzer further comprises a cleaning agent preheating assembly disposed on the rack, the cleaning agent preheating assembly being connected to a pipeline between the concentrated cleaning agent dilution barrel and the liquid injection component; the cleaning agent preheating assembly is arranged between the concentrated cleaning agent diluting barrel and the waste liquid pump assembly.

In some embodiments, the sample analyzer further comprises a photometer and a light source lamp assembly, the cuvette mounting location being located in a light path between the photometer and the light source lamp assembly;

the light source lamp assembly is positioned between the reaction disc assembly and the sample supply track; the reaction disc assembly comprises an annular reaction disc, the reaction cup is arranged on the annular reaction disc, and the photometer is positioned on the radial inner side or the radial outer side of the annular reaction disc.

In some embodiments, at least two first air inlets and at least two first air outlets are disposed on the housing, the first air inlets communicating with the first heat dissipation air duct are different, and/or the first air outlets communicating with the first heat dissipation air duct and the second heat dissipation air duct are different.

The sample analyzer provided by the embodiment of the application can independently dissipate heat of the control board assembly of the sample analyzer and/or the first driving motor of the liquid supply supporting mechanism by arranging the control board assembly in the first heat dissipation air duct of the first air duct structure and arranging the second air duct structure in the accommodating cavity, so that the heat dissipation effect of the control board assembly and/or the first driving motor is improved, and the problems that the temperature of the control board assembly and/or the first driving motor is too high and the stability and the service life of the control board assembly and/or the first driving motor are influenced when the sample analyzer works are avoided.

Drawings

The technical solution and other advantages of the present application will become apparent from the detailed description of the embodiments of the present application with reference to the accompanying drawings.

FIG. 1 is a schematic diagram of an internal structure of an embodiment of a sample analyzer provided by an embodiment of the present application;

FIG. 2 is another perspective view of a sample analyzer provided by an embodiment of the present application;

FIG. 3 is a schematic view of the distribution of components below a diaphragm of a sample analyzer as provided in an embodiment of the present application;

FIG. 4 is a top view of a sample analyzer provided in an embodiment of the present application;

FIG. 5 is a rear view of a sample analyzer provided in an embodiment of the present application;

FIG. 6 is a front view of an internal structural view of a sample analyzer provided in an embodiment of the present application

FIG. 7 is a schematic structural diagram illustrating an embodiment of a first duct structure according to an embodiment of the present disclosure;

FIG. 8 is another angular view of the first air duct structure of FIG. 4;

FIG. 9 is a schematic structural diagram illustrating an embodiment of a second air duct structure provided in an embodiment of the present application;

FIG. 10 is another angular view of the second air duct structure of FIG. 6;

FIG. 11 is a schematic structural diagram illustrating an embodiment of a support member, a carbon dioxide sensor, and a pressure sensing plate according to an embodiment of the present disclosure;

FIG. 12 is a schematic structural view of an embodiment of a support and shield according to an embodiment of the present disclosure;

FIG. 13 is a cross-sectional view of one embodiment of a third air duct structure provided in the practice of the present application.

A sample analyzer 100; a frame 110; a housing 111; a first air inlet 112; a first air outlet 113; a dispensing mechanism 120; a moving member 121; a first moving mechanism 1211; a first driving member 1212; a second drive member 1213; a pipette needle 123; a sample needle 1311; a first reagent needle 1312; a second reagent needle 1313; a first syringe 131; a control panel assembly 140; a control board 141; a first air duct structure 142; a first duct outlet 1421; a first inlet 1422; a back plate 1423; side panels 1424; a top plate 1425; a second air duct structure 150; a second duct outlet 151; a second air duct inlet 152; a mounting panel 153; a mounting cover 154; a cover plate 1541; a deflector 1542; a carbon dioxide sensor 160; a pressure detection plate 161; a support 162; mounting plate 1621; a support plate 1622; a protective cover 163; a third air duct structure 170; a third heat dissipation air duct 171; a first air duct 1711; a second air duct 1712; a third duct inlet 1713; a third air supply structure 180; a reaction tray assembly 190; the specimen supply track 200; a reagent cartridge assembly 210; a first reagent compartment 211; a second reagent cartridge 212; a stirring assembly 220; a cleaning assembly 230; a second drive mechanism 240; a suction needle 241; a vacuum tank 250; a photometer 260; a light source lamp assembly 261; a bulkhead 270; the second air intake 271; a baffle 280; a third air inlet 281; a filter screen 290; a water tank 300; a power supply 310; a second fan 320; a refrigeration assembly 330; a third fan 340; a waste pump assembly 350; a fourth fan 360; a concentrated cleaning agent dilution tank 370; a concentrated cleaning agent pump 380; a cleaning agent preheating assembly 390; a concentrated cleaning agent tank 400.

Detailed Description

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. It is to be understood that the embodiments described are only a few embodiments of the present application and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

In the description of the present application, it is to be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the present application and for simplicity in description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed in a particular orientation, and be operated in a particular manner, and are not to be construed as limiting the present application. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", may explicitly or implicitly include one or more of the described features. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise.

In the description of the present application, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; may be mechanically connected, may be electrically connected or may be in communication with each other; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as the case may be.

In this application, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact of the first and second features, or may comprise contact of the first and second features not directly but through another feature in between. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. "beneath," "under" and "beneath" a first feature includes the first feature being directly beneath and obliquely beneath the second feature, or simply indicating that the first feature is at a lesser elevation than the second feature.

The following disclosure provides many different embodiments or examples for implementing different features of the application. In order to simplify the disclosure of the present application, specific example components and arrangements are described below. Of course, they are merely examples and are not intended to limit the present application. Moreover, the present application may repeat reference numerals and/or letters in the various examples, such repetition is for the purpose of simplicity and clarity and does not in itself dictate a relationship between the various embodiments and/or configurations discussed. In addition, examples of various specific processes and materials are provided herein, but one of ordinary skill in the art may recognize applications of other processes and/or use of other materials.

The embodiment of the application provides a sample analyzer. The following are detailed below.

Fig. 1 is a schematic structural diagram of an embodiment of a sample analyzer according to an embodiment of the present disclosure. Fig. 2 is another perspective view of a sample analyzer according to an embodiment of the present disclosure, as shown in fig. 1 and 2, the sample analyzer 100 includes a rack 110, a dispensing mechanism 120, and a liquid supply support mechanism, the dispensing mechanism 120 and the liquid supply support mechanism (not shown in the figure) are disposed on the rack 110, the dispensing mechanism 120 includes a moving member 121 and a pipetting needle 123 disposed on the moving member 121, and the moving member 121 is configured to drive the pipetting needle 123 to move between different operation positions to aspirate or discharge liquid. The liquid supply support mechanism is in communication with the pipette needle 123 for providing a motive force to the pipette needle 123 to draw or discharge liquid.

Wherein, the operation position of the pipette needle 123 refers to a position for sucking or discharging a liquid, the pipette needle 123 includes different positions such as a position for sucking a reagent, a position for discharging a reagent, a position for sucking a sample, a position for discharging a sample, and the like, and the moving means 121 is configured to drive the pipette needle 123 to move between the position for sucking a reagent and the position for discharging a reagent, or the moving means 121 is configured to drive the pipette needle 123 to move between the position for sucking a sample and the position for discharging a sample.

It should be noted that the operation positions of the pipetting needle 123 are not limited to the four positions, and other operations are possible, which may be determined according to the functions of the sample analyzer 100. In addition, the operation position of the same function of the pipette needle 123 is not limited to one, and a plurality of operation positions having the same function may be provided.

In the embodiment of the present application, the moving member 121 is used to drive the pipetting needle 123 to move between different operation positions, and the moving member 121 may drive the pipetting needle 123 to rotate between different operation positions, or the moving member 121 may drive the pipetting needle 123 to slide between different operation positions, and only the pipetting needle 123 needs to be able to move between different operation positions.

In some embodiments, as shown in fig. 1 and 2, the moving unit 121 includes a rotating arm rotatably mounted on the frame 110, and a motor (not shown) connected to the rotating arm and driving the rotating arm to rotate, wherein the rotating arm is connected to the pipetting needle 123. When a motor (not shown in the figure) drives the rotating arm to rotate, the pipetting needle 123 connected with the rotating arm can be driven to rotate together, so that the pipetting needle 123 moves between different operation positions.

In other embodiments, the moving part 121 includes a slide rail (not shown) disposed on the frame 110, a slider (not shown) slidably connected to the slide rail, and a driver (not shown) connected to the slider and driving the slider to slide on the slide rail, wherein the slider is connected to the pipetting needle 123. When the driver drives the sliding part to slide along the sliding rail, the liquid transferring needle 123 connected with the sliding part can be driven to slide together, so that the liquid transferring needle 123 moves between different operation positions.

As shown in fig. 1 and 3, a water tank 300 is further provided on the frame 110. The liquid supply supporting mechanism comprises a pipeline (not shown in the figure) communicated between the water tank 300 and the liquid transferring needle 123, and a first injector 131 is arranged on the pipeline between the water tank 300 and the liquid transferring needle 123 so as to provide power for sucking or discharging liquid to the liquid transferring needle 123 through the first injector 131. The liquid supply support mechanism further comprises a first driving motor (not shown in the figure), the first driving motor is in driving connection with the first injector 131, and the first injector 131 is driven to move by the first driving motor.

After the pipetting needle 123 moves to the position for sucking the sample or the reagent, the piston rod of the first syringe 131 can be driven to move by the first driving motor, so that the first syringe 131 provides negative pressure to the pipetting needle 123 through the pipeline, and the pipetting needle 123 sucks the sample or the reagent into the pipetting needle 123. After the pipetting needle 123 moves to the position for releasing the sample or the reagent, the first driving motor can drive the piston rod of the first syringe 131 to move reversely, so that the first syringe 131 provides positive pressure to the pipetting needle 123 through the pipeline, and the pipetting needle 123 releases the sample or the reagent, thereby completing the transfer of the sample or the reagent.

In the embodiment of the present application, as shown in fig. 4 and 5, the rack 110 includes a housing 111, the housing 111 is provided with a first air inlet 112 and a first air outlet 113, and the housing 111 has a receiving cavity (not shown) therein, and the receiving cavity is communicated with the first air inlet 112 and the first air outlet 113 on the housing 111. All or a portion of the components of the sample analyzer 100 can be disposed within the receiving cavity. As shown in fig. 1, 6-8, the sample analyzer 100 further includes a control board assembly 140, the control board assembly 140 is disposed on the rack 110, and the control board assembly 140 is used to provide control support for the sample analyzer 100. The control board assembly 140 is electrically connected to a liquid supply supporting mechanism (not shown) of the sample analyzer 100, and is configured to control the moving member 121 to drive the pipetting needle 123 to move to different operation positions, and control the pipetting needle 123 to perform operations such as liquid absorption and liquid release at different operation positions.

In some embodiments, a first air duct structure 142 and a first air supply structure (which may be the second fan 320, the third fan 340, or the fourth fan 360) are disposed in the accommodating cavity of the housing 111, the first air duct structure 142 has a first heat dissipation air duct (not shown), the first heat dissipation air duct is communicated with the first air inlet 112 and the first air outlet 113 on the housing 111, the control board assembly 140 is disposed in the first heat dissipation air duct, and the first air supply structure is configured to supply air to the first heat dissipation air duct.

The control panel assembly 140 of the sample analyzer 100 is arranged in the first heat dissipation air duct of the first air duct structure 142, the first air duct structure 142 is arranged in the accommodating cavity, the control panel assembly 140 of the sample analyzer 100 can be independently cooled, the heat dissipation effect of the control panel assembly 140 is improved, and the problems that the temperature of the control panel assembly 140 is too high and the stability and the service life of the control panel assembly 140 are influenced when the sample analyzer 100 works are solved.

In some embodiments, a second air duct structure 150 and a second air supply structure (which may be a second fan 320, a third fan 340, or a fourth fan 360) are disposed in the accommodating cavity of the housing 111, the second air duct structure 150 is disposed in the accommodating cavity, the second air duct structure 150 has a second heat dissipation air duct, the second heat dissipation air duct is communicated with the first air inlet 112 and the first air outlet 113 on the housing 111, the first driving motor is disposed in the second heat dissipation air duct, and the second air supply structure is configured to supply air to the second heat dissipation air duct.

The embodiment of the application sets up the first driving motor who supplies liquid supporting mechanism with sample analyzer 100 in the second heat dissipation wind channel of second wind channel structure 150, and set up second wind channel structure 150 and hold the intracavity, can dispel the heat alone to the driving motor who supplies liquid supporting mechanism, thereby improve the radiating effect to the first driving motor who supplies liquid supporting mechanism, avoid sample analyzer 100 during operation, first driving motor's high temperature, and influence first driving motor's stability and life's problem.

It should be noted that, in the embodiment of the present application, the first air duct structure 142 and the second air duct structure 150 may be disposed at the same time, or only one of the first air duct structure 142 and the second air duct structure 150 may be disposed, and of course, the former may be capable of independently dissipating heat of the control board assembly 140 and the first driving motor of the liquid supply support mechanism at the same time, so as to simultaneously improve stability and service life of the control board assembly 140 and the first driving motor of the liquid supply support mechanism, and further improve stability and service life of the sample analyzer 100.

In some embodiments, the housing 111 is provided with at least two first air inlets 112 and at least two first air outlets 113, the first air inlets 112 communicating the first heat dissipation air duct and the second heat dissipation air duct are different, and/or the first air outlets 113 communicating the first heat dissipation air duct and the second heat dissipation air duct are different. Therefore, the heat dissipation effect of the control board assembly in the first heat dissipation air duct and the first driving motor in the second heat dissipation air duct can be improved.

The first air inlet 112 of the first heat dissipation air duct may be different from the first air outlet 113 of the second heat dissipation air duct, and the first air outlet 113 of the first heat dissipation air duct may be the same as the first air outlet 113 of the second heat dissipation air duct. Or, the first air inlet 112 of the first heat dissipation air duct and the first air outlet 113 of the second heat dissipation air duct may be the same, and the first heat dissipation air duct and the second heat dissipation air duct may be different. The first air inlet 112 of the first heat dissipation air duct and the first air outlet 113 of the second heat dissipation air duct may be different, and the first air inlet and the second air inlet of the first heat dissipation air duct and the second heat dissipation air duct may be different.

Of course, the first air inlet 112 communicating the first heat dissipation air duct and the second heat dissipation air duct may be the same, and the first air outlet 113 communicating the first heat dissipation air duct and the second heat dissipation air duct may be the same.

In some embodiments, the first air duct structure 142 includes a board box disposed in the accommodating cavity of the housing 111, the control board assembly 140 is mounted in the board box, the board box has a first air duct outlet 1421 communicated with the first air outlet 113 on the housing 111 and a first air duct inlet (including a first inlet 1422) communicated with the first air inlet 112 on the housing 111, and the first air duct outlet 1421 and the first air duct inlet are communicated to form a first heat dissipation air duct. The control board card assembly 140 is disposed in the first heat dissipation air duct in the board card box, and cold air outside the housing 111 can enter the first heat dissipation air duct through the first air inlet 112 on the housing 111 and the first air duct inlet of the first air duct structure 142, and dissipate heat of the control board assembly 140. Then, the air in the first heat dissipation air duct is discharged out of the casing 111 through the first air duct outlet 1421 of the first air duct structure 142 and the first air outlet 113 of the casing 111.

In some embodiments, as shown in fig. 8, the control board assembly 140 includes at least two control boards 141 that provide control support for the sample analyzer 100, and the at least two control boards 141 are electrically connected to and provide control support for different devices of the sample analyzer 100. At least two control boards 141 are installed in the first heat dissipation air duct at intervals, so that the air flow in the first heat dissipation air duct flows through the side surfaces of the control boards 141, thereby taking away the heat of the control boards 141. It should be noted that the number of the control board cards 141 included in the control board assembly 140 may be two, three or more, and is not limited herein.

The card box includes two first side plates 1423 disposed opposite to each other, two second side plates 1424 disposed opposite to each other, a top plate 1425 and a bottom plate (not shown in the figure), at least two control cards 141 are installed on an inner wall of at least one first side plate 1423 of the card box at intervals, a first air duct inlet is disposed on the at least one first side plate 1423, and a first air duct outlet 1421 is disposed on the at least one second side plate 1424. Therefore, after cooling air enters the first heat dissipation air duct from the first air duct inlet, the cooling air can rapidly enter the gap between the two adjacent control board cards 141, and therefore the two adjacent control board cards 141 are cooled. Meanwhile, the airflow between two adjacent control boards 141 can flow out of the first air duct outlet 1421 after flowing through the whole control board 141, so that the heat dissipation effect on the control boards 141 is further improved.

In this embodiment, the first air duct inlet of the first air duct structure 142 includes a first inlet 1422, the control boards 141 are mounted on the inner wall of one of the first side plates 1423 at intervals, and the first inlet 1422 is located on the first side plate 1423 where no control board 141 is mounted, so that the first inlet 1422 communicates with the gap between two adjacent control boards 141, and cooling air outside the first air duct structure 142 rapidly enters the gap between two adjacent control boards 141 from the first inlet 1422.

Correspondingly, the first air intake 112 of the housing 111 includes a first air inlet located at a side of the housing 111 opposite to the first inlet 1422. The first air inlet communicates with the first inlet 1422 such that air outside the housing 111 enters the first inlet 1422 through the first air inlet.

In addition, the first air duct inlet of the first air duct structure 142 further includes a second inlet (not shown in the figure), and the second inlet is located on the bottom plate, so that the second inlet is communicated with the gap between two adjacent control boards 141, and cooling air outside the first air duct structure 142 can rapidly enter the gap between two adjacent control boards 141 from the second inlet.

Correspondingly, the first air inlet 112 of the housing 111 includes a second air inlet located at the bottom surface of the housing 111 and opposite to the second inlet. The second air inlet communicates with the second inlet so that air outside the housing 111 enters the second inlet through the second air inlet.

It should be noted that the first duct inlet may include only one of the first inlet 1422 and the second inlet, or both the first inlet 1422 and the second inlet, and of course, the latter can make the size of the first duct inlet larger, so that more cooling air flows into the first heat dissipation duct.

In some embodiments, a heat dissipation gap is formed between the top plate 1425 and the control boards 141, the first air duct outlet 1421 is opened on the second side plate 1424, and the first air duct outlet 1421 is communicated with the heat dissipation gap, so that the cooling air can enter the heat dissipation gap after flowing through the gap between two adjacent control boards 141 and then flow out from the first air duct outlet 1421.

The first air duct outlet 1421 may be formed only on one second side plate 1424, or the first air duct outlets 1421 may be formed on two second side plates 1424, and of course, the latter can make the size of the first air duct outlet 1421 larger, so as to improve the flow rate of the cooling air flow in the first heat dissipation air duct, and further improve the heat dissipation efficiency of the control board 141.

As shown in fig. 1, 6, 9 and 10, the second air duct structure 150 includes a panel assembly disposed in a containing cavity (not shown in the figure) of the housing 111, the first driving motor is installed in the panel assembly, the panel assembly has a second air duct outlet 151 communicated with the first air outlet 113 on the housing 111 and a second air duct inlet 152 communicated with the first air inlet 112 on the housing 111, and the second air duct inlet 152 and the second air duct outlet 151 are communicated to form a second heat dissipation air duct, so that the cooling air flow outside the housing 111 passes through the first air inlet 112 of the housing 111, enters the second heat dissipation air duct from the second air duct inlet 152, dissipates heat of the first driving motor, and then is discharged from the first air outlet 113 of the housing 111 through the second air duct outlet 151.

Specifically, the panel assembly includes a mounting panel 153, the mounting panel 153 is mounted on the rack 110, the mounting panel 153 includes a first side and a second side opposite to each other, the first driving motor is disposed on the first side of the mounting panel 153, and the first injector 131 is disposed on the second side of the mounting panel 153, so that the first driving motor passes through the mounting panel 153 to be drivingly connected to the first injector 131.

The panel assembly further includes a mounting cover 154, and the mounting cover 154 is covered on the second side of the mounting panel 153 to enclose the mounting cover 154 and the mounting panel 153 to form a second heat dissipation air duct. The second air duct inlet 152 of the second heat dissipation air duct is opened on the mounting panel 153 and is disposed opposite to the first air inlet 112 on the housing 111, so that the cooling air flow outside the housing 111 enters the second heat dissipation air duct from the second air duct inlet 152 through the first air inlet 112 on the housing 111.

The first air duct structure 142 and the second air duct structure 150 are located on the same side of the rack 110. The first air inlet 112 communicated with the second air duct inlet 152 is located at the side of the casing 111 and is opposite to the second air duct inlet 152 of the second heat dissipation air duct.

With continued reference to fig. 9 and 10, the mounting cover 154 includes a cover plate 1541 covering the first driving motor, and a baffle 1542 covering the second air duct inlet 152, the cover plate 1541 includes a first edge and a second edge opposite to each other, and one side edge of the baffle 1542 is connected to the first edge of the cover plate 1541 to guide the air flow at the second air duct inlet 152 between the cover plate 1541 and the mounting panel 153, so that the second air duct inlet 152 communicates with the first heat dissipation air duct. A second air duct outlet 151 is formed between the second edge of the cover plate 1541 and the mounting panel 153, so that the cooling air flow enters the second heat dissipation air duct from the second air duct inlet 152, cools the first driving motor, and then flows out from the second air duct outlet 151.

In some embodiments, as shown in fig. 3, 11 and 12, the sample analyzer 100 further includes a carbon dioxide sensor 160 disposed within the receiving cavity of the housing 111, the carbon dioxide sensor 160 for detecting a concentration of carbon dioxide within the receiving cavity of the housing 111. By detecting the concentration of carbon dioxide in the accommodating chamber of the housing 111 by the carbon dioxide sensor 160, it is possible to reduce interference with the detection result of the sample after carbon dioxide in the gas in the accommodating chamber of the housing 111 is incorporated into the sample.

Wherein the carbon dioxide sensor 160 is located on a side of the mounting cover 154 away from the mounting panel 153. It can be understood that, the gas flow near the side of the mounting cover 154 of the panel assembly facing away from the mounting panel 153 is small, and by disposing the carbon dioxide sensor 160 on the side of the mounting cover 154 facing away from the mounting panel 153, the influence of the flow of gas in the housing 111 on the carbon dioxide sensor 160 can be reduced, and the accuracy of the carbon dioxide sensor 160 in detecting the concentration of carbon dioxide in the housing 111 can be improved.

In some embodiments, sample analyzer 100 further comprises a degassing membrane module (not shown) disposed on rack 110, which is disposed on the connection line of water tank 300 and pipetting needle 123. When the liquid supply support mechanism enables the liquid in the water tank 300 to flow to the liquid-transferring needle 123 through the pipeline between the water tank 300 and the liquid-transferring needle 123, the degassing membrane module can degas the liquid in the connecting pipeline between the water tank 300 and the liquid-transferring needle 123, that is, discharge the gas in the liquid.

A degassing membrane module (not shown) is located on a side of mounting cover 154 away from mounting panel 153. Carbon dioxide sensor 160 is positioned above the degassing membrane module such that carbon dioxide sensor 160 is maintained at a suitable height within housing 111.

Wherein sample analyzer 100 further comprises a support 162 disposed on rack 110, wherein support 162 is positioned above the degassing membrane assembly and carbon dioxide sensor 160 is disposed on support 162 such that carbon dioxide sensor 160 is positioned above the degassing membrane assembly.

A pressure sensing plate 161 is provided on the supporting member 162, and the pressure sensing plate 161 is provided on a connection line between the water tank 300 and the pipette needle 123. Thus, the pressure value in the connection line between the water tank 300 and the pipette needle 123 can be detected by the pressure detecting plate 161 so as to accurately control the amount of liquid supplied to the pipette needle 123 according to the pressure value.

The carbon dioxide sensor 160 is provided on a pressure detection plate 161. Thus, the carbon dioxide sensor 160 and the pressure detection plate 161 can be integrated, and the installation of the carbon dioxide sensor 160 is more convenient. The carbon dioxide sensor 160 is electrically connected to the control board assembly 140, and the carbon dioxide sensor 160 is configured to transmit a detected carbon dioxide concentration signal in the accommodating chamber to the control board assembly 140, so that the control board assembly 140 determines a detection result of the sample according to the carbon dioxide concentration in the accommodating chamber.

As shown in fig. 12, a protective cover 163 is further provided on the support member 162, and the protective cover 163 is covered over the pressure detection plate 161 and the carbon dioxide sensor 160. The protective cover 163 can protect the pressure sensing plate 161 and the carbon dioxide sensor 160 from liquid dropping on the pressure sensing plate 161 or the carbon dioxide sensor 160 to affect the operation stability of the pressure sensing plate 161 or the carbon dioxide sensor 160.

Specifically, support piece 162 is the sheet metal component, and it includes mounting panel 1621 and two backup pads 1622, and two backup pads 1622 lie in same one side and relative setting of mounting panel 1621, and the upside edge of two backup pads 1622 is connected with the relative both sides edge of mounting panel 1621 respectively, and two backup pads 1622 are perpendicular with mounting panel 1621, and the lower limb of two backup pads 1622 supports on the bottom surface that holds the chamber, and the clearance between two backup pads 1622 sets up with installation lid 154 relatively.

A degassing membrane module is located below mounting plate 1621 and between two support plates 1622. The pressure detection plate 161 is mounted on the upper surface of the mounting plate 1621, and the side surface of the pressure detection plate 161 is opposed to the upper surface of the mounting plate 1621. The protection cover 163 is covered on the upper surface of the mounting plate 1621, and the pressure detection plate 161 and the carbon dioxide sensor 160 are located in the inner space of the protection cover 163. The side of the shield 163 is opened with an opening communicating with the inner space of the shield 163 so that the air in the housing 111 enters the inner space of the shield 163 through the opening and the carbon dioxide sensor 160 detects the concentration of carbon dioxide, or so that a pipe passes through the opening to communicate with the pressure detection plate 161.

In some embodiments, as shown in fig. 2 and 13, the sample analyzer 100 further includes an electrolyte analysis (ISE) assembly (not shown) for analyzing an electrolyte of the sample. An electrolyte analysis assembly is disposed on the rack 110, and includes a sample receiving position on the moving track of the pipetting needle 123 for receiving a sample. After the moving part 121 drives the pipetting needle 123 to move to the position for sucking the sample, the pipetting needle 123 can suck the sample through the liquid supply supporting mechanism, then the pipetting needle 123 is driven by the moving part 121 to move to the sample receiving position of the electrolyte analysis assembly, and the pipetting needle 123 releases the sample to the sample receiving position through the liquid supply supporting mechanism, so that the electrolyte analysis assembly can analyze the electrolyte of the sample.

Specifically, the electrolyte analysis assembly includes electrolyte analysis electrodes (not shown in the drawings) and an electrolyte analysis controller (not shown in the drawings). The electrolyte analysis electrode is used for analyzing the electrolyte of the sample. The electrolyte analysis controller is used to provide control support for the electrolyte analysis electrodes.

The electrolyte analysis assembly further includes a second syringe (not shown) provided on the pipe between the water tank 300 and the electrolyte analysis electrode to drive the flow of the liquid in the electrolyte analysis electrode through the second syringe, and a second driving motor (not shown). The second driving motor is in driving connection with the second injector so as to drive the second injector to move. Therefore, the second injector is driven by the second driving motor to move, so that the liquid in the electrolyte analysis electrode can be driven by the second injector to flow, and the electrolyte analysis electrode can suck a sample or discharge the sample.

The electrolyte analysis electrode and the second driving motor can be electrically connected with the electrolyte analysis controller, so that the electrolyte analysis controller controls the motion state of the electrolyte analysis electrode and the second driving motor, and the electrolyte analysis electrode is supported by control.

As shown in fig. 13, a third air duct structure 170 and a third air supply structure 180 are disposed in the accommodating cavity of the housing 111 of the rack 110, the third air duct structure 170 includes a third heat dissipation air duct 171 communicated between the first air inlet 112 and the first air outlet 113 on the housing 111, the electrolyte analysis component is disposed in the third heat dissipation air duct 171, and the third air supply structure 180 is configured to supply air to the third heat dissipation air duct 171. From this, sample analyzer 100 can dispel the heat to electrolyte analysis subassembly through third wind channel structure 170 alone to improve the radiating effect to electrolyte analysis subassembly, and then when electrolyte analysis electrode subassembly detected the sample, reduce the influence of temperature variation to electrolyte analysis electrode subassembly's testing result.

It should be noted that the first air inlet 112 and the first air outlet 113 communicated with the third air duct structure 170 may be the same as or different from the first air inlet 112 and the first air outlet 113 communicated with the first air duct structure 142 and the second air duct structure 150. In the examples of the present application, the foregoing are described as specific examples.

The third cooling air duct 171 includes a first air duct 1711 and a second air duct 1712 that are isolated from each other, the electrolyte analysis electrode is disposed in the first air duct 1711, and the electrolyte analysis controller and the second driving motor are disposed in the second air duct 1712.

It is understood that the electrolyte analysis electrode does not generate much heat when analyzing the electrolyte of the sample, but the analysis result of the electrolyte analysis electrode on the sample is easily affected by the temperature change. The electrolyte analysis controller and the second drive motor of the electrolyte analysis assembly generate a large amount of heat during operation, which results in an excessive ambient temperature in the vicinity of the electrolyte analysis controller and the second drive motor.

Therefore, in the embodiment of the present application, the electrolyte analysis electrodes of the electrolyte analysis module are disposed in the first air duct 1711, and the electrolyte analysis controller and the second driving motor of the electrolyte analysis module are disposed in the second air duct 1712, so that the first air duct 1711 and the second air duct 1712 are isolated from each other, and the electrolyte analysis controller and the second driving motor which generate heat can be separately cooled. Meanwhile, the electrolyte analysis electrode can be independently radiated, and the phenomenon that the environment temperature of the electrolyte analysis electrode is too high due to the heat generated by the electrolyte analysis controller and the second driving motor, so that the analysis result of the electrolyte analysis electrode on a sample is influenced is avoided.

In other embodiments, the electrolyte analysis electrode, the electrolyte analysis controller, and the second driving motor of the electrolyte analysis assembly may be disposed in the third heat dissipation duct 171 to dissipate heat from the electrolyte analysis electrode, the electrolyte analysis controller, and the second driving motor. In this case, the flow rate of air in the third heat dissipation air channel 171 may be increased, so that heat generated by the electrolyte analysis controller and the second driving motor is rapidly discharged, and the temperature in the third heat dissipation air channel 171 is maintained at a low temperature. Alternatively, the electrolyte analysis electrode, the electrolyte analysis controller, and the second driving motor may be sequentially distributed according to the flowing direction of the air flow in the third heat dissipation air duct 171, so that the heat generated by the electrolyte analysis controller and the second driving motor does not flow through the electrolyte analysis electrode.

As shown in fig. 2 and 13, a transverse partition 270 is disposed in the accommodating chamber of the housing 111 of the rack 110 above the water tank 300, a sub-chamber for accommodating the water tank 300 is formed in the accommodating chamber, at least two first air inlets 112 are provided, and at least one first air inlet 112 is communicated with the sub-chamber for accommodating the water tank 300. The third air duct structure 170 is disposed above the diaphragm 270. The third air duct structure 170 includes a third air duct inlet 1713 communicated with the first air duct 1711 and the second air duct 1712, a second air inlet 271 penetrating through the plate surface of the diaphragm 270 is provided, and the second air inlet 271 is communicated with the third air duct inlet 1713 and the sub-cavity for accommodating the water tank 300. Therefore, cold air in the sub-cavity below the diaphragm 270 and accommodating the water tank 300 can enter the first air duct 1711 and the second air duct 1712 through the second air inlet 271 and the third air duct inlet 1713, so as to cool the electrolyte analysis electrodes in the first air duct 1711, the second driving motor in the second air duct 1712, and the electrolyte analysis electrode controller. The third air duct inlet 1713 faces the diaphragm 270, so that the second air inlet 271 is communicated with the third air duct inlet 1713. The first air inlet 112 communicating with the sub-cavity accommodating the water tank 300 is located below the water tank.

The third air duct structure 170 includes a third air duct outlet (not shown) communicating with the first air duct 1711, and the third air duct outlet communicates with the accommodating chamber of the housing 111. It can be understood that, since the electrolyte analysis electrode does not generate much heat when analyzing the electrolyte of the sample, the temperature of the air in the first air duct 1711 does not change greatly after passing through the electrolyte analysis electrode, and the air can be directly discharged from the third air duct outlet of the first air duct 1711 into the accommodating cavity of the housing 111 to dissipate heat of other components in the accommodating cavity of the housing 111.

The third air duct structure 170 includes a fourth air duct outlet (not shown in the figure) communicated with the second air duct 1712, and a second air outlet (not shown in the figure) penetrating through the surface of the diaphragm 270 is provided, and the second air outlet is communicated with the fourth air duct outlet. Therefore, the hot air in the second air duct 1712 can be discharged to the lower side of the transverse partition plate 270 from the fourth air duct outlet of the second air duct 1712, and the influence of the hot air on the parts above the transverse partition plate 270 is avoided.

As shown in fig. 13, a baffle 280 is further provided between the tank 300 and the diaphragm 270. The baffle 280 is provided with a third air inlet 281, and the third air inlet 281 is communicated with the second air inlet 271, so that the air in the sub-cavity containing the water tank 300 under the baffle 280 enters the second air inlet 271 through the third air inlet 281, and finally enters the first air duct 1711 and the second air duct 1712 through the second air inlet 271.

A filter screen 290 is further disposed in the passage between the second air inlet 271 and the third air inlet 281. From this, can filter the air that enters into first wind channel 1711 and second wind channel 1712, avoid impurity in the air to enter into first wind channel 1711 and second wind channel 1712 and influence the job stabilization nature of electrolyte analysis subassembly.

Alternatively, a filter screen 290 may be provided at the third air inlet 281 to filter air entering the first air passage 1711 and the second air passage 1712.

In some embodiments, the third air supply structure 180 includes a first fan disposed at the third air duct inlet 1713 for supplying air to the first air duct 1711 and the second air duct 1712. Specifically, the third air duct structure 170 includes an air supply passage communicated with the third air duct inlet 1713, the first air duct 1711 and the second air duct 1712 are respectively communicated with the air supply passage, and the first fan is disposed in the air supply passage.

In some embodiments, the third air duct outlet of the third air duct structure 170 is covered with an electromagnetic shielding net (not shown), which can prevent the electrolyte analysis electrode from being electromagnetically interfered during the operation process.

In some embodiments, as shown in fig. 1 and 2, the sample analyzer 100 further includes a reaction tray assembly 190, a sample supply track 200 and a reagent cartridge assembly 210, which are disposed on the rack 110, the reaction tray assembly 190 includes a reaction cup mounting location (not shown), the reagent cartridge assembly 210 includes a reagent cup mounting location (not shown), the sample supply track 200 is used for transporting a sample cup (not shown), and the reaction cup mounting location and the reagent cup mounting location are located on a moving track of the pipetting needle 123. Thus, the moving member 121 can drive the pipetting needle 123 to move to above the reagent cup mounted on the reagent cup mounting position of the reagent cartridge assembly 210, suck the reagent from the reagent cup, and then drive the pipetting needle 123 to move to the cuvette mounting position of the cuvette assembly 190, so that the pipetting needle 123 discharges the reagent into the cuvette mounted on the cuvette mounting position of the cuvette assembly 190.

Alternatively, the cuvette mounting position is located on the movement locus of the pipetting needle 123, and the sample supply path 200 intersects the movement locus of the pipetting needle 123. Thus, the moving member 121 can drive the pipette needle 123 to move above the sample cup on the sample supply rail 200, suck the sample from the sample cup, and then drive the pipette needle 123 to move to the cuvette mounting position of the cuvette assembly 190, so that the pipette needle 123 discharges the sample into the cuvette mounted on the cuvette mounting position of the cuvette assembly 190.

Wherein, the reaction tray assembly 190, the reagent cartridge assembly 210 and the dispensing mechanism 120 are located on the same side of the sample supply track 200, so that the moving member 121 can drive the pipetting needle 123 to move rapidly between the cuvette mounting position and the sample supply track 200, or the pipetting needle 123 can drive the pipetting needle 123 to move rapidly between the cuvette mounting position and the reagent cup mounting position.

The cuvette mounting position and the reagent cup mounting position may be located on the movement locus of the pipetting needle 123 of the same dispensing mechanism 120, and the sample supply path 200 may intersect with the movement locus of the pipetting needle 123. Alternatively, the number of the dispensing mechanisms 120 may be plural, the cuvette mounting position and the reagent cup mounting position may be located on the movement locus of the pipetting needle 123 of one dispensing mechanism 120, the cuvette mounting position may be located on the movement locus of the other pipetting needle 123, and the sample supply track 200 may intersect with the movement locus of the pipetting needle 123 of the dispensing mechanism 120.

In some embodiments, the pipetting needle 123 includes a sample needle 1311 and reagent needles (1312, 1313), the cuvette mounting site is located on a movement track of the sample needle 1311 and the reagent needle, the reagent cup mounting site is located on a movement track of the reagent needle, and the sample supply track 200 intersects with the movement track of the sample needle 1311.

The moving member 121 includes a first moving mechanism 1211 and a second moving mechanism (1212, 1213), and the first moving mechanism 1211 is connected to the sample needle 1311 to drive the sample needle 1311 to move between the cuvette mounting position and the sample position in the sample supply rail. A second movement mechanism (1212, 1213) is connected to the reagent needle (1312, 1313) to drive the reagent needle (1312, 1313) to move between the reaction cup mounting site and the reagent cup mounting site.

Specifically, a first moving mechanism 1211 is provided between the reaction disk assembly 190 and the sample supply rail 200, and the first moving mechanism 1211 is used to drive the sample needle 1311 to move between the cuvette mounting position and the sample supply rail 200 to suck or discharge the sample liquid. Thus, the first moving mechanism 1211 can drive the sample needle 1311 to move above the sample cup on the sample supply rail 200, suck the sample from the sample cup, and then drive the sample needle 1311 to move to the cuvette mounting position of the cuvette assembly 190, so that the sample needle 1311 discharges the sample into the cuvette mounted on the cuvette mounting position of the cuvette assembly 190.

Wherein, the reaction disk assembly 190 includes an inner circle of reaction cup mounting locations and an outer circle of reaction cup mounting locations. The number of the first moving mechanisms 1211 is two, and different sample needles 1311 are respectively connected to the two first moving mechanisms 1211, wherein one first moving mechanism 1211 is used for driving the sample needle 1311 to move between the reaction cup mounting position on the inner ring of the reaction disc assembly 190 and the sample supply track 200, and the other first moving mechanism 1211 is used for driving the sample needle 1311 to move between the reaction cup mounting position on the outer ring of the reaction disc assembly 190 and the sample supply track 200.

The reagent cartridge assembly 210 and the reaction tray assembly 190 are sequentially distributed along the moving direction of the sample cups on the sample supply track 200. The second movement mechanism (1212, 1213) is located between the reagent cartridge assembly 210 and the reaction disk assembly 190 such that the second movement mechanism (1212, 1213) drives the reagent needle (1312, 1313) to aspirate reagent from the reagent cup on the reagent cartridge assembly 210 and release the reagent into the reaction cup of the reaction disk assembly 190.

Wherein, there are two reagent needles (1312, 1313), the reagent cartridge assembly 210 includes two reagent cartridges (211, 212), each reagent cartridge (211, 212) corresponds to one reagent needle (1312, 1313), each reagent cartridge (211, 212) is located on the moving track of the corresponding reagent needle (1312, 1313), and the two reagent cartridges (211, 212) are sequentially distributed in the direction of the sample feeding track 200 toward the reaction disk assembly 190.

Specifically, the reagent cartridge assembly 210 includes a first reagent cartridge 211 and a second reagent cartridge 212, and the first reagent cartridge 211 and the second reagent cartridge 212 are sequentially distributed in a direction of the sample supply track 200 toward the reaction tray assembly 190. The reagent cup mounting sites comprise a first sub-mounting site located in the first reagent cartridge 211. The second moving mechanism includes a first driving member 1212 disposed between the reaction disk assembly 190 and the first reagent cartridge 211, the reagent needle includes a first reagent needle 1312 disposed on the first driving member 1212, and the first driving member 1212 is configured to drive the first reagent needle 1312 to move between the reaction cup mounting position and the first sub-mounting position to suck or discharge the first reagent solution. Thus, the first driving member 1212 can drive the first reagent needle 1312 to suck the first reagent from the first reagent cup in the first reagent chamber 211 and release the first reagent into the reaction cup in the reaction tray assembly 190.

The number of the first driving members 1212 is two, and the two first driving members 1212 are respectively connected to different first reagent needles 1312, wherein one of the first driving members 1212 is configured to drive the first reagent needle 1312 thereon to move between the cuvette mounting position and the first sub-mounting position on the inner ring of the reaction disk assembly 190, and the other first driving member 1212 is configured to drive the first reagent needle 1312 thereon to move between the cuvette mounting position and the first sub-mounting position on the outer ring of the reaction disk assembly 190.

The reagent cup mounting site comprises a second sub-mounting site located at the second reagent magazine 212. The second moving mechanism includes a second driving member 1213 disposed between the reaction disk assembly 190 and the second reagent cartridge 212, the reagent needle includes a second reagent needle 1313 disposed on the second driving member 1213, and the second driving member 1213 is used to drive the second reagent needle 1313 to move between the cuvette mounting location and the second sub-mounting location to aspirate or discharge the second reagent solution. Thus, the second driving member 1213 can drive the second reagent needle 1313 to aspirate the second reagent from the second reagent cup in the second reagent cartridge 212 and release the second reagent into the reaction cup of the reaction disk assembly 190.

Wherein the number of the second driving members 1213 is two, and two second driving members 1213 are respectively connected to different second reagent needles 1313, wherein one of the second driving members 1213 is used for driving the second reagent needle 1313 thereon to move between the cuvette mounting position and the second sub-mounting position on the inner ring of the reaction plate assembly 190, and the other second driving member 1213 is used for driving the second reagent needle 1313 thereon to move between the cuvette mounting position and the second sub-mounting position on the outer ring of the reaction plate assembly 190.

In some embodiments, the sample analyzer 100 further includes a stirring assembly 220, the stirring assembly 220 includes a third moving mechanism and a stirring member, the third moving mechanism is mounted on the rack 110, the third moving mechanism is connected to the stirring member to drive the stirring member to move, the reaction cup mounting position of the reaction disk assembly 190 is located on the moving track of the stirring member, and the stirring member is used for stirring the reaction solution in the reaction cup. Thus, the third moving mechanism can drive the stirring bar to move to the position above the reaction cup of the reaction tray assembly 190, so that the stirring bar can stir the reaction liquid in the reaction cup.

In the embodiment of the application, the third moving mechanism is used for driving the stirring part to move, and the third moving mechanism may drive the stirring part to rotate, or the third moving mechanism may drive the stirring part to slide.

As shown in fig. 1 and 2, the third moving mechanism includes a first rotating frame (not shown) rotatably mounted on the frame 110, and a motor (not shown) connected to the first rotating frame and driving the first rotating frame to rotate, wherein the first rotating frame is connected to the stirring member. When the motor drives the first rotating frame to rotate, the stirring member connected with the first rotating frame can be driven to rotate together, so that the stirring member moves to the reaction cup mounting position of the reaction disk assembly 190.

In some embodiments, the stirring assembly 220 is located on the same side of the sample supply track 200 as the reaction tray assembly 190, such that the stirring assembly 220 and the reaction tray assembly 190 are close to each other, so that the stirring member can be rapidly moved to the reaction cup mounting position of the reaction tray assembly 190 to stir the liquid in the reaction cup.

In some embodiments, the sample analyzer 100 further comprises a washing assembly 230, wherein the washing assembly 230 comprises a first driving mechanism and a washing mechanism, the first driving mechanism is disposed on the frame 110, the first driving mechanism is connected with the washing mechanism, and the washing mechanism is located on the rotation track of the reaction cup on the reaction disk assembly 190. Thus, the first driving mechanism can drive the cleaning mechanism to move into the reaction cup of the reaction disk assembly 190, so that the cleaning mechanism can clean the reaction cup.

Specifically, the cleaning mechanism includes a liquid suction member for sucking the cleaning liquid in the reaction cup and a liquid injection member (not shown) communicating with the liquid supply support mechanism (not shown). The first driving mechanism is used for driving the cleaning mechanism to move between the positions of inserting into the reaction cup and separating from the reaction cup. When the first driving mechanism drives the liquid absorbing component or the liquid injecting component of the cleaning mechanism to be inserted into the reaction cup, the cleaning liquid can be injected into the reaction cup through the liquid injecting component, or the liquid in the reaction cup is sucked out through the liquid absorbing component.

Wherein, first actuating mechanism includes the first crane of rotation installation on frame 110, and is connected with first crane and drives first crane pivoted motor (not shown in the figure), and first crane is connected with the imbibition part and the notes liquid part of wiper mechanism. When the first lifting frame of motor drive goes up and down, can drive the imbibition part of being connected with first lifting frame and annotate the liquid part and go up and down together to make imbibition part and annotate the liquid part and remove between the position of inserting the reaction cup and leaving the reaction cup.

Specifically, the cleaning mechanism comprises at least two liquid suction components and at least two liquid injection components, and the liquid injection components and the liquid suction components are sequentially arranged at intervals in the circumferential direction of the reaction disc component. The reaction disc assembly drives the reaction cup on the reaction disc assembly to rotate to the position below the first liquid injection part, the first liquid injection part is controlled to descend and be inserted into the reaction cup through the lifting of the first lifting frame, cleaning liquid is injected into the reaction cup, and then the first liquid injection part is controlled to ascend through the lifting of the first lifting frame so that the first liquid injection part leaves the reaction cup.

Then, the reaction cup filled with the cleaning liquid by the reaction plate assembly rotates for a circle and then is positioned below the first liquid absorption component, the first liquid absorption component is controlled by the first lifting frame to descend and be inserted into the reaction cup, the cleaning liquid filled into the reaction cup is absorbed, and then the first lifting frame is controlled by the first lifting frame to ascend so that the first liquid absorption component leaves the reaction cup.

Then, the reaction cup is treated by the subsequent liquid injection component and the liquid absorption component, and finally, clear water is injected into the reaction cup through the liquid injection component.

The number of the cleaning mechanisms is two, the liquid suction component and the liquid injection component of one cleaning mechanism are used for cleaning reaction cups in the reaction cup mounting positions on the outer ring of the reaction tray assembly 190, and the liquid suction component and the liquid injection component of the other cleaning mechanism are used for cleaning reaction cups in the reaction cup mounting positions on the inner ring of the reaction tray assembly 190.

In some embodiments, the washing assembly 230 of the sample analyzer 100 may further include a second driving mechanism 240 and a suction needle 241, wherein the suction needle 241 is located on a rotation track of the reaction cup on the reaction disk assembly 190. The second driving mechanism 240 is installed on the frame 110, and the second driving mechanism 240 is connected with the aspiration needle 241 to drive the aspiration needle 241 to move between a position of inserting into and a position of separating from the reaction cup. Reaction tray assembly 190 and second drive mechanism 240 are distributed in sequence over the movement of the sample cups on sample supply track 200. After the second driving mechanism 240 drives the suction needle 241 to insert into the reaction cup of the reaction disk assembly 190, the residual liquid after the reaction cup is cleaned can be sucked away by the suction needle 241.

The second driving mechanism 240 includes a second lifting frame rotatably installed on the frame 110, and a motor (not shown in the figure) connected to the second lifting frame and driving the second lifting frame to lift, and the second lifting frame is connected to the suction needle 241. When the motor (not shown in the figure) drives the second lifting frame to lift, the suction needle 241 connected with the second lifting frame can be driven to lift together, so that the suction needle 241 moves between the positions of inserting into the reaction cup and leaving from the reaction cup.

The number of the suction needles 241 is two, wherein one suction needle 241 is used for sucking the reaction cups in the reaction cup mounting positions on the outer ring of the reaction plate assembly 190, and the other suction needle 241 is used for sucking the reaction cups in the reaction cup mounting positions on the inner ring of the reaction plate assembly 190.

In some embodiments, the cleaning assembly 230 further includes a vacuum tank 250, the vacuum tank 250 is mounted on the frame 110, and the vacuum tank 250 is connected to the suction needle 241 through a pipe. The reaction tray assembly 190 and vacuum canisters 250 are sequentially distributed over the movement of the sample cups on the sample supply track 200. Thus, a negative pressure can be applied to the aspiration needle 241 through the vacuum tank 250, and the aspiration needle 241 can aspirate the liquid in the reaction cup.

It can be understood that, when the suction needle 241 sucks the liquid remaining after the cleaning in the reaction cup, gas is sucked into the suction needle 241 at the same time, and if the liquid pump is directly communicated with the suction needle 241 and negative pressure is provided to the suction needle 241, gas is sucked into the liquid pump, which may cause damage to the liquid pump. According to the embodiment of the application, the vacuum can 250 provides negative pressure for the suction needle 241, and the problem that the vacuum can 250 is damaged can not occur even if gas enters the vacuum can 250.

Wherein, an air pump or a syringe may be connected to the vacuum tank 250 through a pipe to maintain a negative pressure in the vacuum tank 250.

In some embodiments, the sample analyzer 100 further comprises a photometer 260 and a light source lamp assembly 261, and the cuvette mounting location is located in the optical path between the photometer 260 and the light source lamp assembly 261. When the light emitted from the light source lamp assembly 261 is not detected by the photometer 260, it indicates that a cuvette exists in the optical path between the photometer 260 and the light source lamp assembly 261.

Wherein light source lamp assembly 261 is positioned between reaction disk assembly 190 and sample supply track 200. Reaction disk assembly 190 comprises an annular reaction disk on which the cuvette mounting location is located, and photometer 260 is located radially inward or radially outward of the annular reaction disk. Thus, when the cuvette mounting place where the cuvette is placed is rotated along with the annular reaction disk to the optical path between the photometer 260 and the light source lamp assembly 261, the cuvette on the cuvette mounting place can be detected.

In the present embodiment, the dispensing mechanism 120, the electrolyte analysis assembly, the third air channel structure 170, the reaction tray assembly 190, the reagent cartridge assembly 210, the agitation assembly 220, the washing assembly 230, the second driving mechanism 240, the vacuum tank 250, the photometer 260, and the light source lamp assembly 261 of the sample analyzer 100 are positioned above the diaphragm 270. Wherein the reagent chamber assembly 210, the reaction disc assembly 190 and the vacuum tank 250 are sequentially distributed in the moving direction of the sample cups on the sample supply track 200, the electrolyte analysis assembly (not shown) and the third air channel structure 170 are located between the vacuum tank 250 and the sample supply track 200, the first moving mechanism 1211, the first driving member 1212, the second driving member 1213, the stirring assembly 220, the cleaning assembly 230 and the second driving mechanism 240 of the dispensing mechanism 120 are distributed around the reaction disc assembly 190, wherein the first moving mechanism 1211 is located between the reaction disc assembly 190 and the sample supply track 200, the first driving member 1212 is located between the reaction disc assembly 190 and the first reagent chamber 211, the second driving member 1213 is located between the reaction disc assembly 190 and the second reagent chamber 212, the stirring assembly 220 is located on the side of the reaction disc assembly 190 facing away from the sample supply track 200, the second driving mechanism 240 is located on the side of the reaction disc assembly 190 in the moving direction of the sample cups on the sample supply track 200, the cleaning assembly 230 is positioned between the agitation assembly 220 and the second drive mechanism 240.

The first air duct structure 142, the second air duct structure 150 and the carbon dioxide sensor 160 are located below the diaphragm 270. The first and second air duct structures 142, 150 are located on the same side of the rack 110 as the sample supply track 200. The first air channel structure 142 and the second air channel structure 150 are sequentially distributed in the moving direction of the sample cups on the sample supply rail 200.

In some embodiments, as shown in fig. 2 and 3, the sample analyzer 100 further comprises a power supply 310, a refrigeration assembly 330, and a waste pump assembly 350 sequentially distributed in the moving direction of the sample cup on the sample supply rail 200, wherein the power supply 310 is used for connecting with an external power grid to provide driving power for the sample analyzer 100. The refrigeration assembly 330 is disposed within the receiving cavity of the housing 111 of the sample analyzer 100. The cooling assembly 330 is electrically connected to the power supply 310 and the control board assembly 140, and cools under the control of the control board assembly 140 to maintain the temperature of the receiving cavity of the housing 111 of the sample analyzer 100 below a certain temperature. The waste liquid pump assembly 350 is connected to the vacuum tank 250 through a pipe for sucking out waste liquid in the vacuum tank 250. The power supply 310, refrigeration assembly 330 and waste pump assembly 350 are disposed within the receiving cavity of the housing 111.

The housing 111 is provided with at least two first air inlets 112 and at least two first air outlets 113, at least one first air inlet 112 is communicated with the sub-cavity in the accommodating cavity where the power source 310 is located, at least one first air outlet 113 is communicated with the sub-cavity where the power source 310 is located, and the first air outlet 113 communicated with the sub-cavity where the power source 310 is located is provided with the second fan 320. The first air outlet 113 is formed in the position where the power supply 310 is located, and the second fan 320 is arranged at the first air outlet 113, so that heat generated by the power supply 310 can be timely discharged to the outer side of the shell 111, and the temperature rise of the inner space of the shell 111 is reduced.

The at least one first air inlet 112 is communicated with the sub-cavity where the refrigeration component 330 is located in the accommodating cavity, the at least one first air outlet 113 is communicated with the sub-cavity where the refrigeration component 330 is located, and the third fan 340 is arranged at the first air outlet 113 communicated with the sub-cavity where the refrigeration component 330 is located. Through setting up third fan 340 at the first air outlet 113 that communicates with the sub-cavity that refrigeration subassembly 330 was located, can in time discharge the outside of casing 111 with the heat that refrigeration subassembly 330 produced.

The waste pump assembly 350 is positioned below the vacuum tank 250 such that the waste pump assembly 350 is coupled to the vacuum tank 250 via tubing. Wherein, the waste liquid pump assembly 350 is also communicated with the liquid absorbing component of the washing mechanism through a pipeline so as to suck out the waste liquid in the reaction cup through the liquid absorbing component. The at least one first air inlet 112 is communicated with a sub-cavity where the waste liquid pump assembly 350 in the accommodating cavity is located, the at least one first air outlet 113 is communicated with the sub-cavity where the waste liquid pump assembly 350 is located, and the fourth fan 360 is disposed at the first air outlet 113 communicated with the sub-cavity where the waste liquid pump assembly 350 is located. By providing the fourth fan 360 at the first air outlet 113 communicating with the sub-cavity where the waste liquid pump assembly 350 is located, the heat generated by the waste liquid pump assembly 350 can be discharged to the outside of the housing 111 in time.

In some embodiments, the sample analyzer 100 further includes a concentrated wash dilution cartridge 370 disposed on the rack 110. The concentrated cleaning agent diluting tub 370 is used to dilute the concentrated cleaning agent. Specifically, the concentrated cleaning agent diluting barrel 370 is respectively communicated with the concentrated cleaning agent barrel 400 and the water tank 300 through a pipeline, and the concentrated cleaning agent barrel 400 is used for storing concentrated cleaning agent.

A concentrated detergent pump 380 is disposed on a pipeline between the concentrated detergent dilution tank 370 and the concentrated detergent tank 400, for sucking the concentrated detergent in the concentrated detergent tank 400 into the concentrated detergent dilution tank 370. Meanwhile, a water pump (not shown) is disposed on a pipe in front of the concentrated detergent dilution tub 370 and the water tank 300 to suck water in the water tank 300 into the concentrated detergent dilution tub 370 to dilute the concentrated detergent in the concentrated detergent dilution tub 370.

The concentrated cleaning agent diluting barrel 370 is connected with the liquid injection part through a pipeline. Thus, the diluted cleaning agent in the concentrated cleaning agent dilution tank 370 can be injected into the reaction cuvette through the injection member, and the reaction cuvette can be cleaned. Wherein the concentrated cleaning agent dilution tank 370 is located between the refrigeration assembly 330 and the waste pump assembly 350.

In some embodiments, the sample analyzer 100 further comprises a wash agent preheating assembly 390 disposed on the rack 110, the wash agent preheating assembly 390 being connected to the line between the concentrated wash agent dilution barrel 370 and the liquid injection component. From this, cleaning agent preheats subassembly 390 can heat the cleaning agent that flows to annotating the liquid part from concentrated cleaning agent dilution barrel 370 to improve the cleaning performance of cleaning agent to the reaction cup. Wherein the cleaning agent preheating assembly 390 is disposed between the concentrated cleaning agent dilution tank 370 and the waste liquid pump assembly 350. A cleaning agent preheating assembly 390 is mounted to the bulkhead 270. Such that the cleaning agent preheating assembly 390 is coupled to the frame 110.

In the foregoing embodiments, the descriptions of the respective embodiments have respective emphasis, and for parts that are not described in detail in a certain embodiment, reference may be made to related descriptions of other embodiments.

The sample analyzer provided in the embodiments of the present application is described in detail above, and specific examples are applied in the present application to explain the principles and embodiments of the present application, and the description of the embodiments is only used to help understand the technical solutions and core ideas of the present application; those of ordinary skill in the art will understand that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications or substitutions do not depart from the spirit and scope of the present disclosure as defined by the appended claims.

Claims (24)

1. A sample analyzer, comprising:

a dispensing mechanism including a moving member and a pipetting needle provided on the moving member; the moving component is used for driving the liquid-transferring needle to move between different operation positions so as to suck or discharge liquid;

the liquid supply supporting mechanism comprises a pipeline communicated between a water tank and the liquid transferring needle, and a first injector is arranged on the pipeline between the water tank and the liquid transferring needle so as to provide power for sucking or discharging liquid for the liquid transferring needle through the first injector; the liquid supply supporting mechanism further comprises a first driving motor, and the first driving motor is in driving connection with the first injector so as to drive the first injector to move;

a control board assembly for providing control support to the sample analyzer;

the machine frame is provided with a shell, a first air inlet and a first air outlet are formed in the shell, a containing cavity is formed in the shell, and the containing cavity is communicated with the first air inlet and the first air outlet in the shell;

a first air duct structure and a first air supply structure are arranged in the accommodating cavity, the first air duct structure is provided with a first heat dissipation air duct, the first heat dissipation air duct is communicated with a first air inlet and a first air outlet on the shell, the control board assembly is arranged in the first heat dissipation air duct, and the first air supply structure is used for supplying air to the first heat dissipation air duct; and/or the presence of a gas in the gas,

the accommodating cavity is internally provided with a second air duct structure and a second air supply structure, the second air duct structure is provided with a second heat dissipation air duct, the second heat dissipation air duct is communicated with the first air inlet and the first air outlet on the shell, the first driving motor is arranged in the second heat dissipation air duct, and the second air supply structure is used for supplying air to the second heat dissipation air duct.

2. The sample analyzer of claim 1 wherein the first air duct structure includes a card box disposed in the receiving cavity, the control board assembly being mounted in the card box, the card box having a first air duct outlet in communication with a first air outlet on the housing and a first air duct inlet in communication with a first air inlet on the housing, the first air duct inlet and the first air duct outlet communicating to form the first heat dissipation air duct.

3. The sample analyzer of claim 2 wherein the control board assembly includes at least two control boards providing control support for the sample analyzer, the board box includes two first side boards disposed opposite to each other and two second side boards disposed opposite to each other, and a top board and a bottom board, at least two of the control boards are mounted on an inner wall of at least one of the first side boards of the board box at intervals, the first air duct inlet is disposed on at least one of the first side boards, and the first air duct outlet is disposed on at least one of the second side boards.

4. The sample analyzer of claim 3 wherein the first air duct inlet includes a first inlet and a second inlet, the control board is mounted on an inner wall of one of the first side plates at intervals, the first inlet is located on the first side plate where the control board is not mounted, the second inlet is located on the bottom plate, a heat dissipation gap is provided between the top plate and the control board, the first air duct outlet is provided on the second side plate, and the first air duct outlet is in communication with the heat dissipation gap.

5. The sample analyzer of claim 1 wherein the second air duct structure includes a panel assembly disposed within the housing, the first drive motor being mounted within the panel assembly, the panel assembly having a second air duct outlet in communication with the first air outlet of the housing and a second air duct inlet in communication with the first air inlet of the housing, the second air duct inlet and the second air duct outlet communicating to form the second heat dissipation air duct.

6. The sample analyzer of claim 5 wherein the panel assembly includes a mounting panel and a mounting cover, the mounting panel being mounted to the rack, the mounting panel including first and second opposing sides, the first drive motor being disposed on the first side of the mounting panel, the first injector being disposed on the second side of the mounting panel; the mounting cover is covered on the second side surface of the mounting panel so that the mounting cover and the mounting panel enclose to form the second heat dissipation air duct; the second air duct inlet is arranged on the mounting panel and is opposite to the first air inlet;

the installation lid is established including the lid apron on the first driving motor to and the lid is established guide plate on the second wind channel entry, the apron is including relative first edge and second edge, one side edge of guide plate with the first edge of apron is connected, in order with the air current water conservancy diversion of second wind channel entry extremely the apron with between the installation panel, the second edge of apron with form between the installation panel the second wind channel export.

7. The sample analyzer of claim 1 further comprising a carbon dioxide sensor disposed within the housing for detecting a concentration of carbon dioxide within the housing.

8. The sample analyzer of claim 7, further comprising a degassing membrane assembly disposed on the rack, the degassing membrane assembly disposed on a connection line between the water tank and the pipetting needle; the carbon dioxide sensor is located above the degassing membrane module.

9. The sample analyzer of claim 8 further comprising a support member disposed on the frame, the support member being positioned above the degassing membrane assembly, the support member having a pressure sensing plate disposed thereon, the pressure sensing plate being disposed on a connecting line between the water reservoir and the pipetting needle; the carbon dioxide sensor is arranged on the pressure detection plate; the support piece is further provided with a protective cover, and the protective cover is arranged above the pressure detection plate and the carbon dioxide sensor.

10. The sample analyzer of claim 1 further comprising an electrolyte analysis assembly including a sample receiving location on the path of travel of the pipetting needle for receiving a sample;

the electrolyte analysis assembly is arranged in the third heat dissipation air duct, and the third air supply structure is used for supplying air to the third heat dissipation air duct.

11. The sample analyzer of claim 10 wherein the electrolyte analysis assembly includes an electrolyte analysis electrode, an electrolyte analysis controller for providing control support to the electrolyte analysis electrode, a second injector disposed in the conduit between the water chamber and the electrolyte analysis electrode for driving fluid flow within the electrolyte analysis electrode through the second injector, and a second drive motor drivingly connected to the second injector for driving movement of the second injector;

the third heat dissipation air duct comprises a first air duct and a second air duct which are isolated from each other, the electrolyte analysis electrode is arranged in the first air duct, and the electrolyte analysis controller and the second driving motor are arranged in the second air duct.

12. The sample analyzer as claimed in claim 11, wherein a transverse partition plate is disposed in the accommodating chamber above the water tank, a sub-chamber for accommodating the water tank is formed in the accommodating chamber, at least two first air inlets are provided, at least one first air inlet is communicated with the sub-chamber for accommodating the water tank, and the third air duct structure is disposed above the transverse partition plate; the third air duct structure comprises a third air duct inlet communicated with the first air duct and the second air duct, a second air inlet penetrating through the transverse partition plate is formed in the plate surface of the transverse partition plate, and the second air inlet is communicated with the third air duct inlet and the sub cavity for accommodating the water tank;

the third air duct structure comprises a third air duct outlet communicated with the first air duct, and the third air duct outlet is communicated with the accommodating cavity of the shell; the third air duct structure comprises a fourth air duct outlet communicated with the second air duct, a penetrating second air outlet is formed in the surface of the transverse partition plate, and the second air outlet is communicated with the fourth air duct outlet.

13. The sample analyzer of claim 12, wherein a baffle is further disposed between the water tank and the diaphragm, the baffle is provided with a third air inlet, and the third air inlet is communicated with the second air inlet; and a filter screen is further arranged in a channel between the second air inlet and the third air inlet, or the third air inlet is provided with the filter screen.

14. The sample analyzer of claim 12, wherein the third air supply structure includes a first fan disposed at the third air duct inlet; and an electromagnetic shielding net covers the outlet of the third air duct structure.

15. The sample analyzer of any of claims 1-14, further comprising a reaction tray assembly disposed on the rack, the reaction tray assembly including a reaction cup mounting location, a sample supply track including a reagent cup mounting location, and a reagent cartridge assembly including a reagent cup mounting location, the sample supply track for transporting a sample cup; the reaction disc assembly, the reagent bin assembly and the dispensing mechanism are positioned on the same side of the sample supply track; the pipetting needle comprises a sample needle and a reagent needle; the reaction cup mounting position is positioned on the moving tracks of the sample needle and the reagent needle, and the reagent cup mounting position is positioned on the moving tracks of the reagent needle; the sample feeding track is crossed with the moving track of the sample needle; the moving component comprises a first moving mechanism and a second moving mechanism, wherein the first moving mechanism is connected with the sample needle to drive the sample needle to move between the reaction cup installation position and a sample position in the sample supply rail; the second moving mechanism is connected with the reagent needle to drive the reagent needle to move between the reaction cup mounting position and the reagent cup mounting position.

16. The sample analyzer of claim 15, wherein the number of the reagent needles is two, the reagent cartridge assembly comprises two reagent cartridges, each reagent cartridge corresponds to one of the reagent needles, each reagent cartridge is located on a moving track of the corresponding reagent needle, and the two reagent cartridges are sequentially distributed in a direction of the sample supply track toward the reaction tray assembly.

17. The sample analyzer of claim 15 further comprising an agitation assembly located on the same side of the sample supply track as the reaction tray assembly; the stirring assembly comprises a third moving mechanism and a stirring piece, the third moving mechanism is installed on the rack and connected with the stirring piece to drive the stirring piece to move, the reaction cup installation position of the reaction disk assembly is located on the moving track of the stirring piece, and the stirring piece is used for stirring reaction liquid in the reaction cup.

18. The sample analyzer of claim 15 further comprising a cleaning assembly including a first driving mechanism and a cleaning mechanism, wherein the first driving mechanism is disposed on the frame, the first driving mechanism is connected to the cleaning mechanism, the cleaning mechanism is located on a rotation track of a reaction cup on the reaction disk assembly, the cleaning mechanism includes a liquid absorbing member and a liquid injecting member communicated with the liquid supplying support mechanism, the liquid injecting member is used for injecting a cleaning liquid into the reaction cup, the liquid absorbing member is used for absorbing the cleaning liquid in the reaction cup, and the first driving mechanism is used for driving the cleaning mechanism to move between a position of inserting into the reaction cup and a position of leaving from the reaction cup.

19. The sample analyzer of claim 18 wherein the cleaning assembly further comprises:

the suction needle is positioned on the rotating track of the reaction cup on the reaction plate component;

the second moving mechanism is mounted on the rack and connected with the suction needle so as to drive the suction needle to move between positions of inserting into the reaction cup and leaving from the reaction cup;

the vacuum tank is arranged on the rack and is connected with the suction needle through a pipeline; the reaction tray assembly and the vacuum tanks are sequentially distributed in the moving direction of the sample cup on the sample supply rail.

20. The sample analyzer of claim 19 further comprising a power supply, a refrigeration assembly, and a waste pump assembly distributed in sequence in the direction of movement of the sample cup on the sample supply track, the power supply, refrigeration assembly, and waste pump assembly being disposed within the receiving cavity; the shell is provided with at least two first air inlets and at least two first air outlets, at least one first air inlet is communicated with the sub-cavity where the power supply is located in the accommodating cavity, at least one first air outlet is communicated with the sub-cavity where the power supply is located, and a second fan is arranged at the first air outlet communicated with the sub-cavity where the power supply is located;

the at least one first air inlet is communicated with the sub-cavity where the refrigeration component is located in the accommodating cavity, the at least one first air outlet is communicated with the sub-cavity where the refrigeration component is located, and a third fan is arranged at the first air outlet communicated with the sub-cavity where the refrigeration component is located;

the waste liquid pump assembly is positioned below the vacuum tank and is connected with the vacuum tank through a pipeline; at least one first air intake with hold the intracavity the sub-cavity at waste liquid pump subassembly place switches on, at least one first air outlet with the sub-cavity at waste liquid pump subassembly place switches on, with the first air outlet that the sub-cavity at waste liquid pump subassembly place switched on is equipped with the fourth fan.

21. The sample analyzer of claim 20, further comprising a concentrated wash solution dilution tank disposed on the rack, the concentrated wash solution dilution tank being coupled to the priming member via a conduit, the concentrated wash solution dilution tank being positioned between the refrigeration assembly and the waste pump assembly.

22. The sample analyzer of claim 21, further comprising a cleaning agent preheating assembly disposed on the rack, the cleaning agent preheating assembly being connected to a conduit between the concentrated cleaning agent dilution barrel and the liquid injection member; the cleaning agent preheating assembly is arranged between the concentrated cleaning agent diluting barrel and the waste liquid pump assembly.

23. The sample analyzer of claim 15 further comprising a photometer and a light source lamp assembly, wherein the cuvette mounting location is located in an optical path between the photometer and the light source lamp assembly;

the light source lamp assembly is positioned between the reaction disc assembly and the sample supply track; the reaction disc assembly comprises an annular reaction disc, the reaction cup is arranged on the annular reaction disc, and the photometer is positioned on the radial inner side or the radial outer side of the annular reaction disc.

24. The sample analyzer of claim 1, wherein the housing has at least two first air inlets and at least two first air outlets, and the first air inlet communicating with the first heat dissipation air duct is different from the first air inlet communicating with the second heat dissipation air duct, and/or the first air outlet communicating with the first heat dissipation air duct is different from the first air outlet communicating with the second heat dissipation air duct.

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