CN111024693A

CN111024693A - Sample detection module and sample detector

Info

Publication number: CN111024693A
Application number: CN201911216219.4A
Authority: CN
Inventors: 李德旭
Original assignee: Beijing Yunduan Guangke Technology Co ltd
Current assignee: Beijing Yunduan Guangke Technology Co ltd
Priority date: 2019-12-02
Filing date: 2019-12-02
Publication date: 2020-04-17

Abstract

The disclosure relates to a sample detection module and a sample detector. The sample detection module comprises a substrate and a plurality of sample detection elements, wherein the sample detection elements are detachably fixed on the substrate, and the substrate is provided with a substrate mounting part for fixing the substrate on a test board or a shell of a sample detector. Because the plurality of sample detection elements in the sample detection module are arranged on the substrate, the sample detection elements on the substrate can be debugged during the processing period of the shell in the production process of the sample detection module, so that the processing period is saved to a great extent; in addition, the sample detection elements are intensively arranged on the substrate and are in an open state, so that the operation is more convenient in the debugging process, and the debugging period can be shortened.

Description

Sample detection module and sample detector

Technical Field

The disclosure relates to the technical field of detecting instruments, in particular to a sample detecting module and a sample detecting instrument.

Background

At present, many sample detection works need to be performed by a sample detector, for example, detection of substances such as human tissue fluid, skin sample, drugs, and the like. Most sample testing instruments on the market comprise a shell and a plurality of sample detection elements, and for the sample testing instruments which are still in an experimental stage, the shell and the sample detection elements are produced for about 30 days in the existing production process; then, respectively fixing a plurality of sample detection elements in the shell, and debugging the sample detection elements to meet the requirement of detection precision, wherein the debugging period is about 15 days; after debugging is finished, the shell and parts outside the shell are subjected to final assembly, the final assembly period is about 9 days, and thus, the period for completing the sample detector is about 54 days in total. The whole production period is very long, the installation process is complex, and the debugging progress is slow.

Disclosure of Invention

The utility model aims at providing a sample detection module and sample detector, this sample detection module debugging is convenient, production cycle is short.

In order to realize the above-mentioned purpose, this disclosure provides a sample detection module, including base plate and a plurality of sample detection component, it is a plurality of sample detection component detachably is fixed in the base plate, the base plate is provided with the base plate installation department, is used for with the base plate is fixed in testboard or sample detector's casing.

Optionally, the plurality of sample detection elements include a holder, a light emitting plate, a lens unit, and a PCB,

the holder has a detection cavity for inserting a detection card carrying a sample to be detected, and is formed with an opening to expose a detection window of the sample to be detected carried on the detection card,

the light emitting plate is disposed adjacent to the holder to provide illumination for the detection window,

the lens unit is arranged opposite to the retainer, and a lens in the lens unit is over against a detection window of the retainer so as to collect image information of the sample to be detected,

the PCB board is detachably fixed on the base plate through a fastener, and the lens unit is electrically connected to the PCB board.

Optionally, the holder is formed with a holder mounting post, the base plate is formed with a first mounting hole adapted to the holder mounting post, and the holder mounting post and the first mounting hole are detachably and fixedly mounted to mount the holder on the base plate.

Optionally, the detection chamber is dimensioned to allow the detection card to be inserted with clearance therein, and the holder is provided with a pressing member for pressing the detection card against the holder.

Optionally, the pressing member is configured as a wave ball screw, and includes a stud body and a ball head, the stud body is mounted on the holder, and the ball head is used for elastically abutting against the detection card.

Optionally, the holder is formed with a limiting structure at an edge of the opening, and the pressing member is disposed at an opposite side of the opening to hold the test card in the test cavity by cooperation of the pressing member and the limiting structure.

Optionally, a position detector for determining a position of the detection card is disposed on the PCB.

Optionally, the position detector includes a signal transmitting module and a signal receiving module, the signal transmitting module and the signal receiving module are disposed at different sides of the holder, and an avoiding port for avoiding transmission signals of the signal transmitting module and the signal receiving module is formed on the holder.

Optionally, the lens unit includes a lens, a lens mount, a lens circuit board and a lens holder,

the lens holder includes a main body part formed with a lens unit mount to fix the lens unit mount of the main body part to the substrate by a fastener, and a support arm extending from the main body part,

the lens is fixed on the lens seat, the lens seat is fixed on the lens circuit board, the lens circuit board is fixed on the support arm, and the lens circuit board is electrically connected to the PCB.

Optionally, a lens unit positioning structure is disposed between the main body portion and the substrate, the lens unit positioning structure includes a positioning column and a positioning hole that are matched with each other, one of the substrate and the main body portion is formed with the positioning column, and the other of the substrate and the main body portion is formed with the positioning hole.

Optionally, the number of the positioning columns is two, and the positioning holes include a closed circular hole matched with one of the positioning columns and an open circular hole matched with the other one of the positioning columns.

Optionally, the support arms include a first support arm and a second support arm, and the lens mount is fixed to the lens circuit board between the first support arm and the second support arm.

Optionally, the luminescent plate is fixed in the PCB board and setting are in the lens unit with between the holder, the luminescent plate is formed with and is located the lens with dodge the hole on the line between the detection window, the luminescent plate is including setting up dodge the light source around the hole, this light source electricity connect in the PCB board.

Optionally, a PCB mounting post is formed on the substrate, the PCB is supported on the PCB mounting post and is formed with a second mounting hole adapted to the PCB mounting post, and the PCB mounting post is detachably and fixedly connected to the second mounting hole through a fastener so as to mount the PCB on the substrate.

Optionally, the plurality of sample detection elements further comprises a scanning unit including a scanner and a scanning bracket, the scanner being fixed to the scanning bracket, the scanning bracket being detachably fixed to the base plate by a fastener and being positioned so that a position of the scanner can be aligned with an electronic mark provided on a detection card inserted into the holder for recording sample information.

Optionally, the scanning stand comprises a support portion to which the scanner is secured, a leg portion connected to the base plate by a fastener, and an intermediate portion connecting the support portion and the leg portion together.

Optionally, a scanning unit positioning structure is formed between the leg portion and the base plate, the scanning unit positioning structure includes a positioning protrusion and a positioning long hole which are matched with each other, one of the base plate and the leg portion is formed with the positioning protrusion, and the other of the base plate and the leg portion is formed with the positioning long hole.

Optionally, the scanning unit includes a heat sink, and the heat sink is attached to the scanner and fixed to the scanning bracket.

Optionally, the substrate mounting portion includes a plurality of mounting bosses, each of which is formed with a recess for receiving a mounting post provided on the housing, so that the mounting bosses and the mounting posts are fastened together in one-to-one correspondence by fasteners.

Optionally, the substrate is made of a metal material.

Another aspect of the present disclosure also provides a sample testing apparatus, including a housing and the sample testing module as described above, where the sample testing module is enclosed in the housing and detachably fixed to the housing through the substrate.

According to the technical scheme, the plurality of sample detection elements in the sample detection module are arranged on the substrate, so that the assembling and debugging process is not required to be carried out after the shell is machined in the production process of the sample detection module, the sample detection elements on the substrate can be debugged during the machining of the shell, and the machining period can be saved to a great extent; in addition, because the sample detection elements are intensively arranged on the substrate and are in an open state before being installed in the shell, the operation is more convenient in the debugging process, so that the debugging period can be reduced from 15 days to 9 days in general, and the whole production period is saved.

Additional features and advantages of the disclosure will be set forth in the detailed description which follows.

Drawings

The accompanying drawings, which are included to provide a further understanding of the disclosure and are incorporated in and constitute a part of this specification, illustrate embodiments of the disclosure and together with the description serve to explain the disclosure without limiting the disclosure. In the drawings:

FIG. 1 is a schematic structural diagram of a sample detection module according to an embodiment of the present disclosure;

FIG. 2 is a schematic structural diagram of a sample detection module according to an embodiment of the disclosure from another viewing angle;

FIG. 3 is an exploded view of a sample detection module in one embodiment of the present disclosure;

FIG. 4 is a schematic view of an assembly of a substrate and a lens unit in one embodiment of the present disclosure;

FIG. 5 is an exploded schematic view of a scanner unit in one embodiment of the present disclosure;

FIG. 6 is an exploded view of the sample detection module at another viewing angle in one embodiment of the present disclosure;

fig. 7 is a schematic view illustrating an assembly of a sample detection module and a housing according to an embodiment of the disclosure.

Description of the reference numerals

1. Detecting the card; 11. a detection unit; 12. a grip portion; 13. an inlet; 14. detecting a window; 15. a sign slot; 16. an electronic identification; 2. a light emitting panel; 21. avoiding holes; 3. a lens unit; 31. a lens; 32. a lens mount; 33. a lens circuit board; 34. a lens holder; 341. a body portion; 3411. closing the circular hole; 3412. opening a circular hole; 342. a support arm; 3421. a first support arm; 3422. a second support arm; 4. a substrate; 41. a first mounting hole; 42. a positioning column; 43. a PCB mounting post; 44. positioning the long hole; 45. mounting a boss; 5. a holder; 51. an opening; 52. a holder mounting post; 53. a compression member; 54. a limiting structure; 6. a scanning unit; 61. a scanner; 62. a heat sink; 63. scanning the support; 631. a support portion; 632. a leg portion; 633. a middle portion; 634. positioning the projection; 7. a PCB board; 71. a signal transmitting module; 72. a signal receiving module; 100. a housing; 200. a sample detection module; 300. a battery.

Detailed Description

The following detailed description of specific embodiments of the present disclosure is provided in connection with the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating the present disclosure, are given by way of illustration and explanation only, not limitation.

In the present disclosure, the use of directional terms such as "inner and outer" means "inner and outer" with respect to the contour of the component or structure itself, unless otherwise specified. In addition, it is to be understood that the terms "first," "second," and the like are used for distinguishing one element from another, and are not necessarily order nor importance. In addition, in the description with reference to the drawings, the same reference numerals in different drawings denote the same elements.

In the related art, the inventor of the present application finds that the fundamental reason for the long production cycle of the sample detector is that, because of considering the factors of weight, cost, signal shielding, etc., the housing of the sample detector is usually made of plastic, while in the development stage of the sample detector, the period of molding the plastic housing needs about 30 days, the sample detection element is a metal element, and generally, the processing can be completed within 15 days, and even if the sample detection element is processed, the assembly and debugging can be completed by waiting for the completion of the processing of the housing, which is time-consuming; moreover, the sample detection elements are dispersedly arranged in the shell, and the shell is used as a positioning support, so that the operation is not good in the debugging stage, and the debugging stage period is long.

The embodiment of the present disclosure provides a sample detection module 200, which is applied to detection items of substances such as human tissue fluid, skin samples, drugs and the like. The sample detection module 200 includes a substrate 4 and a plurality of sample detection elements detachably fixed to the substrate 4, and the substrate 4 is provided with a substrate mounting portion for fixing the substrate 4 to the housing 100 of the test bed or the sample detector.

Through the technical scheme, as the plurality of sample detection elements in the sample detection module 200 are arranged on the substrate 4, in the production process of the sample detection module 200, the assembling and debugging process is not required to be carried out after the processing of the shell 100 is finished, and the sample detection elements on the substrate 4 can be debugged during the processing of the shell 100, so that the processing period can be greatly saved; in addition, since the sample detection elements are collectively arranged on the substrate 4 and are in an open state before being loaded into the housing 100, the operation is more convenient in the debugging process, so that the debugging period can be reduced from 15 days to 9 days in general, and the whole production period is saved.

The sample detection module 200 may be a trace drug detector, a blood trace element analyzer, a harmful substance detector, and other various sample detectors, which are not limited in the present disclosure, and hereinafter, the trace drug detector will be taken as an example to describe in detail the specific structure of the sample detection module 200 of the present disclosure, but the inventive concept of the present disclosure is not limited to the trace drug detector.

As shown in the figure, the plurality of sample detection elements include a holder 5, a light-emitting plate 2, a lens unit 3 and a PCB 7, the holder 5 has a detection cavity for inserting a detection card 1 carrying a sample to be detected, and the holder 5 is formed with an opening 51 to expose a detection window 14 carrying the sample to be detected on the detection card 1, wherein the detection card 1 is formed in a strip shape and includes a detection portion 11 and a holding portion 12, the detection portion 11 is formed with a containing cavity containing a substance to be detected, an inlet 13 allowing the substance to be detected to enter, and the detection window 14 allowing the substance to be detected to penetrate out, and the holding portion 12 is provided with a mark groove 15 for distinguishing the holding portion 12, so that the holding portion 12 is more conveniently distinguished. In use, the substance to be detected is put into the accommodating cavity from the inlet 13 of the detection card 1, for example, in drug detection, the hair of a tester can be dissolved into a solution by a chemical agent, and the solution is dripped into the inlet 13 of the detection card 1 by a dropper; next, the detection card 1 is inserted into the holder 5 in such an orientation that the detection window 14 faces the lens unit 3, so that the lens unit 3 collects image information of the substance to be detected. The test card 1 may be a disposable consumable to ensure the effect of the last test substance of the substance to be tested.

In addition, in the present disclosure, the light-emitting plate 2 is disposed close to the holder 5 to provide illumination for the detection window 14, and the light-emitting plate 2 may be disposed with a light-emitting diode, or other substances capable of emitting light when energized, such as tungsten wires, rare gases, etc., which is not limited by the present disclosure.

When the light-emitting plate 2 irradiates light onto the detection window 14 of the detection card 1, the lens unit 3 can be used for collecting image information or spectrum information of a substance to be detected, in order to realize the function, the lens unit 3 is arranged opposite to the holding frame 5, and the lens in the lens unit 3 is over against the detection window 14 of the holding frame 5 so as to collect image information and the like of a sample to be detected.

Further, the PCB board 7 is detachably fixed to the base plate 4 by a fastener, and the lens unit 3 is electrically connected to the PCB board 7. Therefore, the image information collected by the lens unit 3 can be transmitted to the PCB 7 for analysis and processing, and the detection result of the substance to be detected can be obtained.

The holder 5 may be fixed on the base plate 4 in various ways, and in one embodiment of the present disclosure, the holder 5 is formed with holder mounting posts 52, the base plate 4 is formed with first mounting holes 41 adapted to the holder mounting posts 52, and the holder mounting posts 52 and the first mounting holes 41 are detachably and fixedly mounted to mount the holder 5 on the base plate 4. Specifically, threaded holes are opened in the holder mounting posts 52, the holder mounting posts 52 are positioned and inserted in the first mounting holes 41, and the holder 5 is fixed to the base plate 4 by fasteners such as bolts or screws.

Since the holder 5 is detachably mounted on the base plate 4 by the fastener, the distance of the holder 5 with respect to the base plate 4 can be changed by adding a spacer to the holder mounting post 52 during the debugging process, thereby adjusting the height of the detection window 14 of the detection card 1 inserted into the holder 5 with respect to the base plate 4.

In the embodiment of the present disclosure, the size of the detection cavity is configured to allow the detection card 1 to be inserted into the detection cavity with a gap, which is more convenient for insertion and removal, for example, the size of the detection card 1 may be slightly smaller than the detection cavity by 0.1-1 mm, but the present disclosure is not limited to this value range, for example, the detection card 1 may also maintain a gap of 0-2 mm with the detection cavity, etc. Further, the holder 5 is provided with a pressing member 53 for pressing the detection card 1 against the holder 5 to ensure stability of the detection card 1 and improve detection accuracy.

In one embodiment of the present disclosure, the pressing member 53 may be configured as a wave ball screw, and includes a stud body mounted to the holder 5 and a ball head for elastically abutting against the detection card 1. For example, the ball head may be mounted to the stud body by a spring to achieve elastic expansion and contraction of the ball head. When the detection card 1 is not inserted into the retainer 5, the glass bead screw is in a natural state, the ball head of the glass bead screw can protrude out of the inner wall of the detection cavity by 0.1-2 mm, when the detection card 1 is inserted, the inner end of the detection card 1 slides over the ball head, and the ball head is compressed and always kept in a state of abutting against the detection card 1.

In other embodiments of the present disclosure, the pressing member 53 may also be another spring screw or a wedge-shaped structure similar to a latch to press the test card 1 in the test cavity.

Further, a stopper structure 54 is formed on the holder 5 at the edge of the opening 51, and the pressing piece 53 is provided on the opposite side of the opening 51 to hold the test card 1 in the test cavity by the mutual cooperation of the pressing piece 53 and the stopper structure 54. The size of the opening 51 of the holder 5 can be set according to the requirement, for example, one side of the holder 5 facing the lens unit 3 can be completely opened as the opening 51, so that the weight of the structure can be reduced, and the detection card 1 with the detection windows 14 of different shapes and sizes can be adapted, and the application range is wider; for another example, the shape and size of the opening 51 of the holder 5 may be the same as those of the detection window 14 of the detection card 1, as long as the detection window 14 can be exposed to the front of the lens unit 3.

In the embodiment of the present disclosure, in order to determine whether or not the detection card 1 is inserted in place in the holder 5, a position detector for determining the position of the detection card 1 is provided on the PCB board 7. The position detector may be an inductive switch, a touch sensor, a photoelectric sensor, or the like, which is not limited by the present disclosure. The position detector may be provided on the end of the holder 5 remote from the insertion end so that when the position sensor senses that the detection card 1 reaches the end, it is determined that the detection card 1 is inserted in place.

In one example of the present disclosure, the position detector includes a signal transmitting module 71 and a signal receiving module 72, the signal transmitting module 71 and the signal receiving module 72 are disposed on different sides of the holder 5, and an avoiding port for avoiding the signal transmitting module 71 and the signal receiving module 72 from transmitting signals is formed on the holder 5, for example, signals such as infrared rays are transmitted between the signal transmitting module 71 and the signal receiving module 72, and the signal receiving module 72 can receive the signals from the avoiding port of the holder 5 when the detection card 1 is not inserted into the holder 5; when the detection card 1 is inserted between the signal transmitting module 71 and the signal receiving module 72, the infrared signal between the two modules will be cut off, which indicates that the detection card 1 exists and has been inserted in place, and then the lens unit 3 and other sample detection elements can be started to perform corresponding detection work.

In the embodiment of the present disclosure, the lens unit 3 includes a lens 31, a lens holder 32, a lens circuit board 33, and a lens holder 34, the lens holder 34 includes a body portion 341 and an arm 342 extending from the body portion 341, the body portion 341 is formed with a lens unit mounting portion to fix the lens unit mounting portion of the body portion 341 to the substrate 4 by a fastener, for example, in one example, mounting holes are formed in the lens unit mounting portion and the substrate 4, and the mounting holes can be tightly fitted by a fastener such as a screw to fix the lens holder 34 to the substrate 4.

The lens 31 is fixed to the lens holder 32, for example, directly inserted into the lens holder 32, and stopped by a stop structure; the lens mount 32 is fixed to the lens circuit board 33, for example, by a fastener such as a bolt, so as to be detachable; the lens circuit board 33 is fixed to the support arm 342, the lens circuit board 33 is electrically connected to the PCB 7, and the lens circuit board 33 may be fixed to the support arm 342 by a fastener such as a bolt for easy detachment. Thus, after the lens 31 collects the image information of the substance to be detected on the detection card 1, the image information is transmitted to the PCB 7 through the lens circuit board 33, and is analyzed and processed on the PCB 7 to obtain the detection result.

Specifically, as shown in the drawing, a lens unit positioning structure including a positioning column 42 and a positioning hole which are fitted to each other is provided between the body portion 341 and the substrate 4, one of the substrate 4 and the body portion 341 is formed with the positioning column 42, and the other of the substrate 4 and the body portion 341 is formed with the positioning hole. The lens unit positioning structure can secure the mounting position of the lens holder 34 when the lens holder 34 is mounted, and also can improve the stability of the lens holder 34 on the substrate 4 after the lens holder 34 is mounted on the substrate 4.

In one embodiment of the present disclosure, the number of the positioning posts 42 is two, and the positioning hole includes a closed circular hole 3411 matched with one of the positioning posts 42 and an open circular hole 3412 matched with another one of the positioning posts 42. An opening circular hole 3412 and a closing circular hole 3411 may be provided at both ends of the body portion 341, respectively, to improve stability of positioning.

In other embodiments of the present disclosure, the number of the positioning pillars 42 may also be one or three, four, etc., and the shape may also be a non-circular cross-section hole, etc., which is not limited by the present disclosure.

The support arm 342 of the lens holder 34 includes a first support arm 3421 and a second support arm 3422, and the lens holder 32 is fixed to the lens circuit board 33 between the first support arm 3421 and the second support arm 3422. The first arm 3421 and the second arm 3422 may extend perpendicular to the substrate 4, and the lens circuit board 33 may be fixed to the first arm 3421 and the second arm 3422 by fasteners, so that the position of the lens 31 may be adjusted to a position fitting the detection window 14 of the detection card 1. Further, the first arm 3421 and the second arm 3422 may be respectively located at two ends of the main body portion 341 and fixed to two ends of the lens circuit board 33, and the middle portion of the lens circuit board 33 may have more positions for mounting the lens holder, so that the structural layout is more reasonable.

In the present disclosure, as shown in the drawing, the light emitting plate 2 is fixed to the PCB 7 and disposed between the lens unit 3 and the holder 5, the light emitting plate 2 is formed with an escape hole 21 on a connection line between the lens and the detection window 14, and the light emitting plate 2 includes a light source disposed around the escape hole 21, the light source being electrically connected to the PCB 7. The light-emitting plate 2 can be welded on the PCB board 7 and electrically connected with the PCB board 7 through metal pins, and when the position detection device detects that the detection card 1 is inserted, the PCB board 7 controls the light-emitting plate 2 to be electrified so as to illuminate the substance to be detected in the detection window 14.

The base plate 4 is provided with a PCB mounting column 43, the PCB 7 is supported on the PCB mounting column 43 and is provided with a second mounting hole matched with the PCB mounting column 43, and the PCB mounting column 43 and the second mounting hole are fixedly connected in a detachable mode through a fastener so that the PCB 7 can be mounted on the base plate 4. The mounting column has a height protruding out of the surface of the substrate 4 so as to support the PCB 7 and the substrate 4 to keep a gap, so that electronic components can be arranged on two sides of the PCB 7, the integration level of the PCB 7 is higher, and the size of the PCB 7 can be reduced.

The plurality of sample-detecting elements further includes a scanning unit 6, the scanning unit 6 including a scanner 61 and a scanning holder 63, the scanner 61 being fixed to the scanning holder 63, the scanning holder 63 being detachably fixed to the base plate 4 by a fastener, and being positioned so that the position of the scanner 61 can be aligned with an electronic mark 16 for recording sample information provided on the detection card 1 inserted into the holding frame 5. Namely, the detection card 1 is provided with the electronic identifier 16 such as a two-dimensional code or a bar code carrying sample information, the scanning unit 6 scans the electronic identifier 16 to determine items to be detected, so that a corresponding program is started to analyze the image information of the substance to be detected, the whole process is fully automated, manual information input is not needed, and the detection process is simplified.

The scanning stand 63 is mainly used to support and fix the scanner 61, which may be designed in various shapes, and in one example of the present disclosure, the scanning stand 63 includes a support part 631, a leg part 632, and an intermediate part 633 connecting the support part 631 and the leg part 632 together, wherein the support part 631 is formed in a flat plate shape so that the scanner 61 is fixed to the support part 631, for example, may be fixedly connected by a fastener, the leg part 632 is connected to the substrate 4 by a fastener, the intermediate part 633 is used to make the scanner 61 be at the same height as the electronic mark 16 on the detection card 1, and the intermediate part 633 may be formed on the support part 631 closer to the edge of the substrate 4, so that the intermediate part 633 can leave a mounting space for the PCB board 7 when the leg part 632 is mounted on the substrate 4. Further, the scanner 61 may be disposed close to the lens 31 to make the structure more compact.

A scanning unit positioning structure is formed between the leg portion 632 and the substrate 4, the scanning unit positioning structure includes a positioning protrusion 634 and a positioning long hole 44 which are matched with each other, one of the substrate 4 and the leg portion 632 is formed with the positioning protrusion 634, and the other of the substrate 4 and the leg portion 632 is formed with the positioning long hole 44. On both sides of the positioning structure, the base plate 4 and the leg portion 632 are fastened with fasteners, respectively, for easy detachment.

Further, the scanner unit 6 includes a heat sink 62, and the heat sink 62 is attached to the scanner 61 and fixed to the scanner bracket 63. For example, the heat sink 62 may be a heat sink plate that is mounted on the outer circumferential surface of the scanner 61 to assist the scanner 61 in dissipating heat, and in the example of the present disclosure, the heat sink plate is provided on the top of the scanner 61, and a heat sink plate mounting column is formed on the heat sink plate, and a scanning bracket mounting column corresponding to the heat sink plate mounting column is formed on the support portion 631 of the scanning bracket 63, and the heat sink plate mounting column and the scanning bracket mounting column are fastened together by a fastener, and the scanner 61 is interposed between the heat sink plate and the support portion 631, and stability can be enhanced.

After the sample detecting element is assembled on the substrate 4, the substrate 4 may be debugged, and after the debugging is completed, the substrate 4 needs to be installed in the housing 100, and the installation manner may be various, in an embodiment of the present disclosure, the substrate installation portion includes a plurality of installation bosses 45, and each installation boss 45 is formed with a hollow slot for accommodating the mounting posts arranged on the housing 100, so as to fasten the installation bosses 45 and the mounting posts together through fasteners in a one-to-one correspondence manner. The sample testing module 200 can be easily removed and replaced by means of the fastening means.

In addition, in other embodiments of the present disclosure, the sample detection module 200 may also be directly bonded in the housing 100 by an adhesive, which is not limited by the present disclosure.

In the related art, the inventors of the present application have also found that, since the plastic housing 100 is greatly affected by the ambient temperature, the plastic housing 100 may expand at room temperature and easily cause the warpage phenomenon with a high middle area and a low periphery area. In the embodiment of the present disclosure, the substrate 4 may be made of a metal material. Since the metallic material is very little affected by the ambient temperature and has a large strength, even if a thermal expansion or cold contraction phenomenon occurs, the amount of expansion or contraction is uniform at each position on the substrate 4, and therefore, the detection accuracy of the sample detection element located thereon can be ensured.

Another embodiment of the present disclosure also provides a sample testing apparatus, which includes a housing 100 and the sample testing module 200 as described above, wherein the sample testing module 200 is enclosed in the housing 100 and is detachably fixed to the housing 100 through the substrate 4.

In addition, the sample detector also comprises a battery for providing electric energy for the sample detection module.

The preferred embodiments of the present disclosure are described in detail with reference to the accompanying drawings, however, the present disclosure is not limited to the specific details of the above embodiments, and various simple modifications may be made to the technical solution of the present disclosure within the technical idea of the present disclosure, and these simple modifications all belong to the protection scope of the present disclosure.

It should be noted that the various features described in the above embodiments may be combined in any suitable manner without departing from the scope of the invention. In order to avoid unnecessary repetition, various possible combinations will not be separately described in this disclosure.

In addition, any combination of various embodiments of the present disclosure may be made, and the same should be considered as the disclosure of the present disclosure, as long as it does not depart from the spirit of the present disclosure.

Claims

1. The utility model provides a sample detection module, its characterized in that includes base plate (4) and a plurality of sample test component, a plurality of sample test component detachably are fixed in base plate (4), base plate (4) are provided with the base plate installation department, be used for with base plate (4) are fixed in casing (100) of testboard or sample detection appearance.

2. The sample detection module according to claim 1, wherein the plurality of sample detection elements comprise a holder (5), a light emitting plate (2), a lens unit (3), and a PCB (7),

the holder (5) has a detection chamber for inserting a detection card (1) carrying a sample to be detected, and the holder (5) is formed with an opening (51) to expose a detection window (14) of the sample to be detected carried on the detection card (1),

the light emitting plate (2) is arranged close to the holder (5) to provide illumination for the detection window (14),

the lens unit (3) is arranged opposite to the holder (5), and a lens in the lens unit (3) is over against a detection window (14) of the holder (5) to collect image information of the sample to be detected,

the PCB (7) is detachably fixed on the base plate (4) through a fastener, and the lens unit (3) is electrically connected to the PCB (7).

3. The sample detection module set according to claim 2, wherein the holder (5) is formed with a holder mounting post (52), the base plate (4) is formed with a first mounting hole (41) adapted to the holder mounting post (52), and the holder mounting post (52) and the first mounting hole (41) are detachably and fixedly mounted to mount the holder (5) on the base plate (4).

4. The sample detection module according to claim 2, wherein the detection cavity is dimensioned to allow the detection card (1) to be inserted with clearance therein, the holder (5) being provided with a pressing member (53) for pressing the detection card (1) against the holder (5).

5. The sample detection module according to claim 4, wherein the compression member (53) is configured as a wave ball screw, comprising a stud body mounted to the holder (5) and a ball head for elastically abutting against the detection card (1).

6. The sample detection module according to claim 4, wherein the holder (5) is formed with a stopper structure (54) at an edge of the opening (51), and the pressing member (53) is disposed at an opposite side of the opening (51) to hold the detection card (1) in the detection chamber by mutual cooperation of the pressing member (53) and the stopper structure (54).

7. The sample detection module according to claim 3, wherein a position detector for determining the position of the detection card (1) is arranged on the PCB board (7).

8. The module set for detecting samples according to claim 7, wherein the position detector comprises a signal emitting module (71) and a signal receiving module (72), the signal emitting module (71) and the signal receiving module (72) are disposed on different sides of the holding frame (5), and an avoiding opening for avoiding the signal emitting module (71) and the signal receiving module (72) from transmitting signals is formed on the holding frame (5).

9. The sample detection module according to claim 2, wherein the lens unit (3) comprises a lens (31), a lens holder (32), a lens circuit board (33) and a lens holder (34),

the lens holder (34) includes a body portion (341) and an arm (342) extending from the body portion (341), the body portion (341) being formed with a lens unit mounting portion to fix the lens unit mounting portion of the body portion (341) to the substrate (4) by a fastener,

the lens (31) is fixed on the lens seat (32), the lens seat (32) is fixed on the lens circuit board (33), the lens circuit board (33) is fixed on the support arm (342), and the lens circuit board (33) is electrically connected to the PCB (7).

10. The sample detection module set according to claim 9, wherein a lens unit positioning structure is disposed between the main body portion (341) and the substrate (4), the lens unit positioning structure comprises a positioning post (42) and a positioning hole which are matched with each other, one of the substrate (4) and the main body portion (341) is formed with the positioning post (42), and the other of the substrate (4) and the main body portion (341) is formed with the positioning hole.

11. The module according to claim 10, wherein the number of the positioning posts (42) is two, and the positioning hole comprises a closed circular hole (3411) matched with one of the positioning posts (42) and an open circular hole (3412) matched with the other positioning post (42).

12. The sample detection module as claimed in claim 9, wherein the support arm (342) comprises a first support arm (3421) and a second support arm (3422), and the lens holder (32) is fixed to the lens circuit board (33) between the first support arm (3421) and the second support arm (3422).

13. The module for detecting samples as claimed in claim 2, wherein said light-emitting plate (2) is fixed to said PCB (7) and disposed between said lens unit (3) and said holder (5), said light-emitting plate (2) being formed with an avoiding hole (21) located on the line between said lens and said detecting window (14), said light-emitting plate (2) comprising a light source disposed around said avoiding hole (21), said light source being electrically connected to said PCB (7).

14. The sample detection module set according to claim 2, wherein the base plate (4) is formed with a PCB mounting post (43), the PCB board (7) is supported on the PCB mounting post (43) and is formed with a second mounting hole matched with the PCB mounting post (43), and the PCB mounting post (43) and the second mounting hole are detachably and fixedly connected through a fastener to mount the PCB board (7) on the base plate (4).

15. The sample detection module according to claim 2, wherein the plurality of sample detection elements further comprises a scanning unit (6), the scanning unit (6) comprising a scanner (61) and a scanning support (63), the scanner (61) being fixed to the scanning support (63), the scanning support (63) being detachably fixed to the base plate (4) by a fastener and being positioned such that the scanner (61) is positioned to be alignable with an electronic identifier (16) provided on a detection card (1) inserted into the holder (5) for recording sample information.

16. The sample detection module according to claim 15, wherein the scanning support (63) comprises a support portion (631), a leg portion (632) and an intermediate portion (633) connecting the support portion (631) and the leg portion (632) together, the scanner (61) being fixed to the support portion (631), the leg portion (632) being connected to the base plate (4) by a fastener.

17. The module of claim 16, wherein a scanning unit positioning structure is formed between the leg portion (632) and the base plate (4), the scanning unit positioning structure comprises a positioning protrusion (634) and a positioning slot (44) which are matched with each other, one of the base plate (4) and the leg portion (632) is formed with the positioning protrusion (634), and the other of the base plate (4) and the leg portion (632) is formed with the positioning slot (44).

18. The sample detection module according to claim 15, wherein the scanning unit (6) comprises a heat sink (62), the heat sink (62) facing the scanner (61) and being fixed to the scanning support (63).

19. The sample detection module according to claim 1, wherein the substrate mounting portion comprises a plurality of mounting bosses (45), each mounting boss (45) being formed with a recess for receiving a mounting post provided on the housing (100) to fasten the mounting boss (45) and the mounting post together in a one-to-one correspondence by a fastener.

20. The sample detection module according to any one of claims 1-19, wherein the base plate (4) is made of a metallic material.

21. A sample testing machine, characterized in that it comprises a housing (100) and a sample testing module (200) according to any one of claims 1 to 20, said sample testing module (200) being enclosed in said housing (100) and being detachably fixed to said housing (100) by said base plate (4).