PCB function detection device

Abstract

The invention belongs to the field of medical instruments, and discloses a PCB function detection device, which comprises a supporting mechanism and electrical elements, the supporting mechanism ensures the stability and balance of the whole detection device, and the integrated various electrical elements can complete the detection of various complex functions of a PCB; according to the invention, powerful support is provided for the PCB function test of the full-automatic immunoblotting instrument, and the detection efficiency and quality are remarkably improved.

Description

Technical Field

[0001] The present application relates to the field of medical devices, and in particular to a PCB function detection device for use in fully automatic immunoblotting instrument PCB function detection. Background Art

[0002] In the field of medical devices, especially in high-end equipment such as fully automatic immunoblotting instruments, PCB boards (printed circuit boards) are the core control components and carry many key functions. The stability and reliability of their performance are crucial to ensure the normal operation of the entire equipment. However, in the production process of PCB boards, how to efficiently and accurately detect whether their functions are intact has always been a problem that needs to be solved in the industry.

[0003] Although there are many traditional PCB board inspection methods, such as visual inspection, X-ray inspection, online testing and functional testing, each method has its limitations, and in actual application, it often faces problems such as complex operation and long time consumption. Especially in PCB board inspection of equipment such as fully automatic immunoblotting, due to the complexity and precision of the equipment itself, traditional inspection methods often cannot meet actual needs.

[0004] At present, the detection of PCB boards in fully automatic immunoblotting instruments on the market mainly relies on installing the PCB boards on the finished machine for testing. Although this detection method can simulate the actual working environment, it has many disadvantages. First, each test requires the PCB board to be removed from the finished machine and then installed. The operation is cumbersome and time-consuming (usually takes about 3 hours), which not only reduces the detection efficiency, but also increases the risk of equipment damage. Secondly, since the finished machine is expensive, using it as a detection tool will undoubtedly increase the detection cost.

[0005] Although some patents have disclosed functional testing devices for PCB boards, such as the functional testing device for PCB boards with good heat dissipation performance disclosed in CN112485565B, and the automatic PCB testing device disclosed in CN116609558A, these devices are mainly aimed at the detection of general PCB boards. For the detection of PCB boards by special equipment such as fully automatic immunoblotting instruments, there are still many deficiencies.

[0006] In order to solve the above problems, the present invention proposes a special function detection device for PCB board in full-automatic immunoblotting instrument. The device is not only easy to operate, but also has high detection efficiency (detection time is shortened to about one and a half hours), and low cost, and no expensive finished machine is needed as a detection tool. At the same time, since the device can simulate the actual working environment of the full-automatic immunoblotting instrument, the accuracy of the test result is also significantly improved. Summary of the invention

[0007] The purpose of the present application is to provide a PCB board function detection device, which is designed to improve the efficiency and accuracy of PCB board function detection, and realize comprehensive function detection of PCB boards in a fully automatic immunoblotting instrument by integrating multiple standard electrical components and using professional testing software.

[0008] In order to achieve the above object, the present invention adopts the following technical solutions:

[0009] A PCB function detection device, comprising:

[0010] A supporting mechanism, providing a stable supporting frame for the functional testing device;

[0011] electrical components mounted on the support mechanism;

[0012] The PCB board is mounted on the supporting mechanism and forms an electrical connection with the electrical components.

[0013] In some embodiments, the support mechanism includes a front panel, a rear panel, and a connecting member that supports the front panel and the rear panel to stand;

[0014] In some embodiments, the connecting member includes a left support rod and a right support rod, the two ends of the left support rod are respectively fixedly connected to the upper left corner ends of the front panel and the rear panel, the two ends of the right support rod are respectively connected to the upper right corner ends of the front panel, and connected to point A of the rear panel, point A is a point on the line connecting the upper left corner ends and the upper right corner ends, and the distance from point A to the upper left corner end is the same as the length of the front panel.

[0015] In some embodiments, the left support rod and the right support rod are perpendicular to the front panel and the rear panel.

[0016] In some embodiments, the left support rod and the right support rod are cylindrical.

[0017] In a preferred embodiment of the present application, the area of ​​the front panel is smaller than that of the rear panel; the height of the front panel is consistent with that of the rear panel, and the length of the front panel is smaller than that of the rear panel.

[0018] In some embodiments, the connecting member further includes a middle support rod, which is located diagonally below the right support rod.

[0019] In some embodiments, the connecting member further includes a left pad and a right pad, and both ends of the left pad are fixedly connected to the lower left corner ends of the front panel and the rear panel respectively.

[0020] In some embodiments, one end of the right pad in the length direction is fixedly connected to the rear panel, and its upper surface is in contact with the switch power box;

[0021] In some embodiments, the front surface of the switch power box is fixedly connected to the front panel, and the rear surface of the switch power box is fixedly connected to the rear panel via a support.

[0022] In a specific embodiment of the present application, a plurality of vertically arranged waist holes are provided on the left side of the front panel.

[0023] In some embodiments, a receiving space is formed between the front panel and the rear panel.

[0024] In a specific embodiment of the present application, multiple key electrical components are installed on the front panel, including but not limited to a peristaltic pump, a motor, a waste pump, a sample rack optocoupler, a positioning optocoupler, a gating optocoupler, a scanner, a float line plug, a power switch, an emergency stop switch and a camera.

[0025] In some embodiments, the front panel is divided into a fourth area, a fifth area, and a sixth area from left to right, wherein the fourth area is installed with multiple peristaltic pumps; the fifth area is installed with a motor and a waste liquid pump from top to bottom; the sixth area is installed with a positioning optical coupler, a gating optical coupler, a scanner, an emergency stop button, a sample rack optical coupler, a float line plug, a camera, and a power switch from top to bottom.

[0026] In some embodiments, the switch power box is mounted on the right side of the front panel;

[0027] In a specific embodiment of the present application, the rear panel is used to install a PCB board, a switch adapter board, a three-color light board, a conversion adapter plug board, a Hall board, a conversion board, a lighting board, a scanning board, a status control board, a unit one main control board, and a unit two main control board.

[0028] In some embodiments, the rear panel is divided into a first area, a second area, a third area, and a fourth area from left to right according to the positions of the electronic components on the front panel.

[0029] The first area includes, from top to bottom, a switch adapter board, a three-color light board, a conversion adapter plug board, and a Hall board;

[0030] The second area includes, from top to bottom, an illumination plate and a conversion plate;

[0031] The third area includes a status control panel and a scanning panel from top to bottom;

[0032] The fourth area is the unit main control board.

[0033] In some embodiments, the rear panel includes a first side and a second side, wherein a PCB is installed on the first side, and electronic components are installed on the second side. Specifically, a tricolor lamp, a sample rack indicator light, and a sample rack Hall sensor are installed on the second side. The opposite side of the tricolor lamp is a tricolor lamp board, and the opposite side of the sample rack indicator light and the sample rack Hall sensor is a Hall plate.

[0034] In a specific embodiment of the present application, an LED lamp and a fan are installed on the top of the rear panel, and the free end thereof extends in a direction parallel to the front panel.

[0035] In a specific embodiment of the present application, the three-color light, the sample rack indicator light, and the sample rack Hall sensor are installed on the side of the rear panel facing the front panel;

[0036] In a specific embodiment of the present application, at least two supporting feet are provided on the bottom surfaces of the left pad block and the right pad block.

[0037] The present application also provides a method for performing PCB board function detection using the above device, comprising the following steps:

[0038] (1) Open the operating software and turn on the power switch to initialize the device;

[0039] (2) On the software operation interface, select the corresponding test program according to the test requirements, and adjust the equipment parameters to the appropriate state as needed;

[0040] (3) After starting the detection program, perform each function test one by one.

[0041] Beneficial effects of this application:

[0042] The support mechanism of the present application is not only structurally stable, but also highly integrated and occupies a small volume; the support mechanism includes a front panel, a rear panel and a variety of connectors, which significantly improves the overall stability of the device; the shape of the support rod is designed for easy carrying; the design of the support feet not only increases the stability of the device, but also effectively prevents sliding and tilting, ensuring the safety and accuracy of the detection process.

[0043] The layout of the electrical components of the present application takes into account weight balance, electrical connection characteristics and functional requirements; the switch power box is installed on the right side of the front panel to balance the overall weight; the three-color light, sample rack indicator light, and sample rack Hall sensor are installed on the rear panel to facilitate efficient electrical connection with the three-color light board and Hall board; thereby further improving the detection efficiency.

[0044] The storage space formed between the front panel and the rear panel of the present application solves the problem of messy storage of connecting cables, and the cables are fixed through the waist hole design. It not only improves the neatness of the device, but also reduces the safety hazards caused by the chaos of cables. The positions of important control components such as the power switch and the emergency stop switch are reasonably designed, which is convenient for operators to quickly respond to and handle various situations.

[0045] This application can detect dual main control boards. In this application, the rear panel is provided with unit one main control board and unit two main control board. The dual main control boards are of great significance in practical work. When the main operation board fails or requires maintenance, the standby board can take over quickly, ensuring the continuity and stability of the entire system.

[0046] In summary, the PCB board function detection device of the present application has achieved remarkable beneficial effects in terms of structural design, electrical component layout, cable management, system reliability and functional integration, providing strong support for the functional detection of PCB boards and significantly improving the detection efficiency and quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0047] Figure 1 is a three-dimensional schematic diagram of the present application;

[0048] Figure 2 It is a three-dimensional schematic diagram from another perspective of the present application;

[0049] Figure 3 This is the main view of this application;

[0050] Figure 4 This is a bottom view of this application;

[0051] In the figure:

[0052] 101, peristaltic pump; 102, motor; 103, waste liquid pump; 104, sample rack optical coupler; 105, positioning optical coupler; 106, gate optical coupler; 107, scanner; 108, float line plug; 109, power switch; 110, emergency stop switch; 111, camera;

[0053] 112. Fan; 113. LED light; 114. Three-color light; 115. Sample rack indicator light; 116. Sample rack Hall sensor;

[0054] 117. Switch power box;

[0055] 201, switch adapter board; 202, three-color light board; 203, conversion adapter plug board; 204, Hall plate; 205, conversion board; 206, lighting board; 207, scanning board; 208, status control board; 209, unit one main control board; 210, unit two main control board;

[0056] 3. Support mechanism; 301. Front panel; 302. Rear panel; 303. Left pad; 304. Right pad; 305. Left support rod; 306. Right support rod; 307. Middle support rod; 308. Support member; 309. Support foot; 310. Waist hole. DETAILED DESCRIPTION

[0057] In order to make the purpose, technical solution and advantages of the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0058] In the description of the present application, it should be understood that the terms "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0059] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of this application, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0060] In this application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0061] In the present application, unless otherwise clearly specified and limited, a first feature being “above” or “below” a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being “above”, “above”, and “above” a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being “below”, “below”, and “below” a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0062] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0063] It should also be noted that, in the embodiments of the present application, the same figure mark is used to represent the same component or the same part. For the same parts in the embodiments of the present application, the figure may only mark one of the parts or parts as an example. It should be understood that the figure mark also applies to other identical parts or parts.

[0064] A PCB function detection device provided by the present application is now described in detail with reference to the accompanying drawings.

[0065] Example 1

[0066] like Figure 1 As shown, a PCB function detection device includes:

[0067] Support mechanism 3, providing a stable support frame for the functional detection device;

[0068] The electrical components are mounted on the support mechanism 3 and provide necessary electrical interfaces and control functions for functional testing of the PCB board.

[0069] The PCB board is mounted on the support mechanism 3 and is connected to the electrical components through electrical connections to ensure efficient and accurate detection operations.

[0070] Support mechanism

[0071] like Figure 1-4 As shown, the support mechanism 3 includes a front panel 301, a rear panel 302, and a connecting member that supports the front panel 301 and the rear panel 302 to stand;

[0072] like Figure 1 As shown, the area of ​​the front panel 301 is smaller than the area of ​​the rear panel 302. Specifically, the height of the front panel 301 is consistent with that of the rear panel 302, but the length of the front panel 301 is smaller than that of the rear panel 302.

[0073] After comprehensively considering the weight, volume, functional characteristics and other factors of the electrical components, the present application installs the switch power box 117 on the right side of the front panel 301 (refer to Figure 1 Most of the electrical components are installed on the front panel 301 to balance the overall weight; after considering the electrical connection characteristics of the three-color light 114, the sample rack indicator light 115, and the sample rack Hall sensor 116, they are installed on the side of the rear panel 302 facing the front panel 301 so as to be efficiently electrically connected to the three-color light 114 board and the Hall plate 204 on the other side of the rear panel 302.

[0074] like Figure 1 As shown, the connecting parts include a left support rod 305 and a right support rod 306. The two ends of the left support rod 305 are fixedly connected to the upper left corner ends of the front panel 301 and the rear panel 302 respectively. The two ends of the right support rod 306 are connected to the upper right corner ends of the front panel 301 respectively, and connected to point A of the rear panel 302. Point A is a point on the line connecting the upper left corner ends and the upper right corner ends. The distance from point A to the upper left corner end is the same as the length of the front panel 301.

[0075] The left support rod 305 and the right support rod 306 are perpendicular to the front panel 301 and the rear panel 302 .

[0076] For ease of transportation, in the present application, the left support rod 305 and the right support rod 306 are cylindrical.

[0077] like Figure 4 As shown, the connecting member also includes a middle support rod 307, which is located obliquely below the right support rod 306 to further strengthen the support.

[0078] The connecting member also includes a left pad 303 and a right pad 304. The two ends of the left pad 303 are fixedly connected to the lower left corners of the front panel 301 and the rear panel 302 respectively; one end of the right pad 304 in the length direction is fixedly connected to the rear panel 302, and its upper surface is in contact with the switch power box 117, playing the role of supporting the switch power box 117. In addition, the front surface of the switch power box 117 is fixedly connected to the front panel 301, and the rear surface of the switch power box 117 is fixedly connected to the rear panel 302 through the support member 308, so as to further enhance the overall support effect of the switch power box 117.

[0079] like Figure 1 As shown, a plurality of vertically arranged waist holes 310 are provided on the left side of the front panel 301 for fixing connecting cables.

[0080] In the present application, a storage space is formed between the front panel 301 and the rear panel 302, which solves the problem of messy storage of connecting cables. In addition, the waist hole 310 design realizes the fixation of the cables, greatly improving the stability and safety of the device.

[0081] In addition, the bottom surfaces of the left pad 303 and the right pad 304 are equipped with at least two supporting feet 309, which not only increase the stability of the device, but also effectively prevent sliding and tilting.

[0082] PCB board

[0083] The fully automatic immunoblotting instrument has functions such as sample delivery, reagent mixing, waste liquid discharge, waste liquid volume monitoring, photography, power conversion, lighting, etc. The realization of these functions relies on the PCB board system.

[0084] Based on the above functions, the boards and cards used in the fully automatic immunoblotting instrument in this application include a unit main control board, a status control board 208, a scanning board 207, a lighting board 206, a conversion board 205, a Hall plate 204, a conversion adapter plug board 203, a three-color light 114 board, and a switch adapter board 201.

[0085] Specifically, the unit main control board accurately controls the operation of the peristaltic pump 101 and the waste liquid pump 103 in the fully automatic immunoblotting instrument; the status control board 208 monitors the amount of waste liquid in the waste liquid barrel in real time, and reminds to clean the waste liquid when it reaches a certain amount; the scanning board 207 is responsible for collecting QR code information; the lighting board 206 controls the LED light 113 and the fan 112; the conversion board 205 realizes the conversion between different interfaces, protocols or standards, ensuring efficient communication and data exchange between devices; the Hall plate 204 is used to detect whether the sample rack has been put in place; the conversion adapter plug board 203 provides interface conversion, realizes perfect compatibility between the PCB board and the detection equipment, and provides voltage adaptability and protection circuit functions; the three-color light 114 board is mainly used to indicate and prompt the current operating status of the instrument; the function of the switch adapter board 201 is mainly reflected in its role as a connecting bridge between the camera 111 and other devices or systems, ensuring that the camera 111 can correctly and efficiently perform its photo-taking task.

[0086] like Figure 2As shown, the rear panel 302 is used to install PCB boards, such as the switch adapter board 201, the three-color light 114 board, the conversion adapter plug board 203, the Hall plate 204, the conversion board 205, the lighting board 206, the scanning board 207, the state control board 208, the unit one main control board 209, and the unit two main control board 210. The optimal layout of the electronic components is comprehensively considered, and the rear panel 302 is divided into a first area, a second area, a third area, and a fourth area from left to right according to the positions of the electronic components on the front panel 301. Specifically, the first area is composed of the switch adapter board 201, the three-color light 114 board, the conversion adapter plug board 203, and the Hall board 204 from top to bottom, the second area is composed of the lighting board 206 and the conversion board 205 from top to bottom, the third area is composed of the state control board 208 and the scanning board 207 from top to bottom, and the fourth area is the unit main control board. It should be noted that this area is not a single main control board, but is composed of two main control boards with similar functions but backup for each other: the unit one main control board 209 and the unit two main control board 210. Among them, the unit one main control board 209 is the main operation board responsible for the main control function; and the unit two main control board 210 is the backup board. When the unit one main control board 209 has any fault or needs maintenance, the unit two main control board 210 can quickly take over to ensure the continuity and stability of the entire system. This dual main control board design not only improves the reliability of the system, but also greatly reduces the downtime caused by the failure of the main control board, thereby ensuring the continuity of detection.

[0087] In the present application, the lighting board 206 can control the LED light 113 and the fan 112 at the same time. The LED light 113 and the fan 112 are installed on the top of the rear panel 302, and their free ends extend in a direction parallel to the front panel 301, realizing the dual functions of lighting and ventilation. In the present application, the main function of the LED light 113 is to provide stable lighting for the camera 111 when taking pictures, ensuring that there is no reflection and shadow interference during the shooting process, which greatly improves the quality of the photos. In addition, the on and off state of the LED light 113 can intuitively reflect whether this function of the lighting board 206 is operating normally. The main function of the fan 112 is to quickly air-dry the film strip after the reaction is completed, especially when the film strip is still in a wet state, to ensure clarity and detail capture when taking pictures. Similarly, the on and off state of the fan 112 also provides users with direct feedback on the operation of this function of the lighting board 206.

[0088] The installation method of the PCB board in this application fully considers the efficiency of signal transmission and the convenience of electrical connection. The main control board is arranged on the right side of the rear panel 302 to facilitate data processing and control.

[0089] Electrical components

[0090] like Figure 1As shown, a plurality of electrical components are mounted on the front panel 301, including but not limited to a peristaltic pump 101, a motor 102, a waste pump 103, a sample rack optical coupler 104, a positioning optical coupler 105, a gate optical coupler 106, a scanner 107, a float line plug 108, a power switch 109, an emergency stop switch 110, and a camera 111. The layout of these components is carefully designed to achieve optimal work efficiency and operational convenience.

[0091] Specifically, if Figure 1 As shown, the front panel 301 is divided into three areas from left to right, namely the fourth area, the fifth area, and the sixth area, wherein the fourth area is installed with multiple peristaltic pumps 101, the fifth area is installed with a motor 102 and a waste liquid pump 103 from top to bottom, and the sixth area is installed with a positioning optical coupler 105, a gating optical coupler 106, a scanner 107, an emergency stop button, a sample rack optical coupler, a float line plug 108, a camera 111, and a power switch 109 from top to bottom.

[0092] The rear panel 302 includes a first side and a second side, wherein a PCB board is installed on the first side, and electronic components are installed on the second side, specifically, a tricolor lamp 114, a sample rack indicator light 115, and a sample rack Hall sensor 116. The tricolor lamp 114 board is located opposite to the tricolor lamp 114, and the Hall plate 204 is located opposite to the sample rack indicator light 115 and the sample rack Hall sensor 116. In this way, the cable connection between the PCB board and the electrical components is simplified, the cable cost is saved, and the space utilization rate of the device is greatly improved, making the overall design more compact and efficient.

[0093] On the other hand, considering the electrical connection and the effective use of space, the lighting board 206 is close to the fan 112 and the LED. The fan 112 and the LED are located at the top of the lighting board 206.

[0094] In the present application, the peristaltic pump 101 and the waste pump 103 are used to detect the unit main control board. To ensure the functional status of the unit main control board, an intuitive test method is adopted: by clicking the test function button through the test software, the peristaltic pump 101 or the waste pump 103 can be rotated or stopped. This process is not only simple and efficient, but also can accurately verify whether the working status of the unit main control board is normal.

[0095] In the fully automatic immunoblotting instrument, the peristaltic pump 101 can accurately measure the amount of reagent drawn from the reagent bottle and accurately distribute it to the designated slots of the membrane tank to ensure the accurate execution of the experimental steps. In addition, the waste liquid pump 103 sucks away the waste liquid in the membrane tank after the reaction is completed through the waste liquid needle, keeping the detection environment clean and further ensuring the accuracy of the experimental results.

[0096] The gate control optocoupler 106 is used to detect the corresponding function of the state control board 208. The main function of the state control board 208 is to detect the open and closed state of the door. If the door is accidentally opened, the gate control optocoupler 106 can quickly detect this change and trigger the experiment suspension mechanism to ensure operational safety and the accuracy of experimental data.

[0097] In order to verify whether the gated optocoupler 106 on the status control board 208 functions normally, a test can be performed by the following simple steps:

[0098] State simulation: Use an obstruction (such as a card or paper) to place in front of the sensor of the door control optocoupler 106 to simulate the state of the door being closed.

[0099] Observation feedback: Check the software interface to confirm whether the door status information it displays is consistent with the actual status, that is, the software should display the corresponding status when the door is closed.

[0100] State change test: Remove the obstruction to simulate the door opening state, observe the software interface again to check whether it is correctly updated to the door opening state and whether the experiment has been automatically paused.

[0101] Through such a test, it can be effectively verified whether the status control board 208 works normally.

[0102] The motor 102 and the positioning optical coupler 105 work together to detect the functions on the unit control board. Specifically, the motor 102 is divided into three types: Nodding motor 102: mainly drives the waste liquid needle to move up and down to ensure that it can accurately reach the membrane tank and absorb the waste liquid after the reaction. When the optical coupler on the nodding motor 102 is blocked by an object, the system can accurately control the moving position of the waste liquid needle.

[0103] Shaking table motor 102: This motor 102 is responsible for controlling the shaking action of the shaking table, aiming to mix the reagents in the membrane tank on the shaking table. By shielding the optical coupler on the shaking table motor 102, the number of shaking times of the shaking table can be flexibly adjusted.

[0104] Slide motor 102: The main function of this motor 102 is to push the waste liquid needle to move left and right, thereby controlling the waste liquid needle to move from slot 1 to slot 2 of the membrane tank until the waste liquid in 50 slots is sucked in sequence. When the optical coupler on the slide motor 102 is blocked, the system can accurately control the moving distance of the waste liquid needle in the left and right directions.

[0105] In the test process, by operating the buttons on the test software, the motor 102 will rotate according to the command. At the same time, the system will accurately control the stop position of the motor 102 according to whether the corresponding optical coupler is blocked, ensuring the efficiency and accuracy of the entire operation process.

[0106] The scanner 107 is used to detect the functions on the scanning board 207. The scanner 107 can be turned on and off by clicking a button on the software. When the scanner 107 is turned on, it will emit a bright red light and is ready to scan. When the scanner 107 is turned on, place a one-dimensional code in its scanning area, and the software will quickly recognize and display the content of the one-dimensional code.

[0107] The float line plug 108 is an important component for monitoring the functions on the status board. When the float line plug 108 is connected to the float, the user can control the float block of the float to move up and down through the buttons on the software interface. At this time, the software will display the information corresponding to the position of the float block in real time. Its main function is to monitor the overflow status of the waste liquid in the waste liquid bucket in real time. Once the waste liquid in the waste liquid bucket reaches the preset upper limit, the float block will automatically rise, and the software will immediately recognize this change and remind the operator to empty the waste liquid bucket in time to ensure the continuity and safety of the system operation.

[0108] The power switch 109 provides an external power input function for the entire detection device.

[0109] The emergency stop switch 110 is connected in series in the circuit, and its function is to provide a power cut-off mechanism in an emergency. Once an emergency occurs, the operator can quickly press the emergency stop switch 110 to immediately cut off the external power input of the entire instrument, ensuring that the equipment stops running safely.

[0110] The camera 111 is used to detect the function of the switch adapter board 201. By clicking the corresponding button on the software, it can be confirmed whether the camera 111 is turned on. If the switch adapter board 201 functions normally, the picture taken by the camera 111 can be seen. In the fully automatic immunoblotting instrument, the camera 111 is used to take pictures of the membrane strip after the reaction is completed.

[0111] The three-color light 114 is used to detect the function of the three-color light 114 board. By clicking the corresponding button on the software, the three-color light 114 will emit a corresponding color. This function is mainly used to display an operating status of the instrument. For example, green means that the instrument is in good operating condition. When red appears, it means that there is a problem with the instrument operation.

[0112] The sample rack photocoupler is used to detect the function on the scanning board 207. Its working principle is based on the coordinated use of a transmitting photocoupler and a receiving photocoupler. When the sample rack is correctly placed between the two photocouplers, the presence of the obstruction will cause the photocoupler working indicator light to go out, and the sample rack indicator light 115 will light up green, indicating that the sample rack has been placed in place. On the contrary, if the sample rack is not placed in place, the receiving photocoupler fails to receive the signal of the transmitting photocoupler, and the sample rack indicator light 115 will light up red as a warning that it is not placed in place.

[0113] The sample rack indicator light 115 and the sample rack Hall sensor 116 are important components to ensure the accurate execution of the functions on the Hall plate 204. They work together with the sample rack optical coupler 104 to form a dual detection mechanism. This mechanism can accurately determine whether the sample rack has been placed in place. On the one hand, the position of the sample rack is confirmed by the working status of the sample rack's opposing optical coupler; on the other hand, the Hall sensor is used to detect the magnetism of the magnet on the sample rack. Only when the opposing optical coupler is turned on and the Hall sensor successfully senses the magnetism on the sample rack, the sample rack indicator light 115 will light up green, indicating that the sample rack has been accurately placed. If any of the detection mechanisms is not met, the indicator light will light up red or other colors to prompt the user to perform the corresponding operation. This dual detection mechanism greatly improves the accuracy and reliability of the detection.

[0114] In summary, the present invention achieves significant beneficial effects in structural design, electrical component layout, cable management, system reliability, and functional integration through reasonable layout, provides strong support for functional testing of PCB boards, and significantly improves testing efficiency and quality.

[0115] When using this PCB function testing device, first, ensure that all standard electrical components are firmly installed and connected correctly, and then accurately install the PCB to be tested to the corresponding position of the rear panel.

[0116] 1. Open the operating software (BQ Line Blot Master Service Tools) and turn on the power switch to initialize the device.

[0117] 2. On the software operation interface, select the corresponding test program according to the test requirements, and adjust the equipment parameters to the appropriate state as needed.

[0118] 3. After starting the detection program, perform each function test one by one.

[0119] By following the above steps, the PCB board function detection device can be fully utilized to efficiently and safely complete the PCB board detection work.

[0120] The above embodiments are only illustrative of the principles and effects of the present application, and are not intended to limit the present application. Any non-substantial changes to the present application using this concept shall be deemed as an infringement of the protection scope of the present application.

Claims

1. A PCB function detection device, characterized in that: include: A supporting mechanism, providing a stable supporting frame for the functional testing device; an electrical component mounted on the support mechanism; A PCB board is mounted on the supporting mechanism and is electrically connected to the electrical components; The supporting mechanism comprises a front panel, a rear panel, and a connecting piece for supporting the front panel and the rear panel to stand; The connecting member includes a left support rod and a right support rod, the two ends of the left support rod are respectively fixedly connected to the upper left corner ends of the front panel and the rear panel, the two ends of the right support rod are respectively connected to the upper right corner end of the front panel and connected to point A of the rear panel, the point A is a point on the line connecting the upper left corner end and the upper right corner end, and the distance from the point A to the upper left corner end is the same as the length of the front panel; The left support rod and the right support rod are perpendicular to the front panel and the rear panel.

2. A PCB function detection device as claimed in claim 1, characterized in that: The area of ​​the front panel is smaller than that of the rear panel; the height of the front panel is consistent with that of the rear panel, and the length of the front panel is smaller than that of the rear panel.

3. A PCB function detection device as claimed in claim 1, characterized in that: The connecting member further comprises a middle support rod, and the middle support rod is located obliquely below the right support rod; The connecting member also includes a left pad and a right pad, and the two ends of the left pad are respectively fixedly connected to the lower left corner ends of the front panel and the rear panel; One end of the right pad in the length direction is fixedly connected to the rear panel, and the upper surface thereof is in contact with the switch power box; The front surface of the switch power box is fixedly connected to the front panel, and the rear surface of the switch power box is fixedly connected to the rear panel via a support.

4. A PCB function detection device as claimed in claim 2, characterized in that: The left side of the front panel is provided with a plurality of waist holes arranged vertically; A receiving space is formed between the front panel and the rear panel.

5. A PCB function detection device as claimed in claim 4, characterized in that: The front panel is divided into a fourth area, a fifth area, and a sixth area from left to right; The fourth area is equipped with a plurality of peristaltic pumps; The fifth area is equipped with a motor and a waste liquid pump from top to bottom; The sixth area is installed with positioning optical coupler, gate optical coupler, scanner, emergency stop button, sample rack optical coupler, float line plug, camera, and power switch from top to bottom; The switch power supply box is installed on the right side of the front panel.

6. A PCB function detection device as claimed in claim 5, characterized in that: The rear panel is divided into a first area, a second area, a third area, and a fourth area from left to right according to the positions of the electronic components on the front panel; The first area includes, from top to bottom, a switch adapter board, a three-color light board, a conversion adapter plug board, and a Hall board; The second area includes, from top to bottom, an illumination plate and a conversion plate; The third area includes a status control panel and a scanning panel from top to bottom; The fourth area is the unit main control board.

7. A PCB function detection device as claimed in claim 6, characterized in that: The rear panel includes a first side and a second side; the first side is installed with a PCB board, and the second side is installed with a three-color light, a sample rack indicator light, and a sample rack Hall sensor; the opposite side of the three-color light is a three-color light board, and the opposite side of the sample rack indicator light and the sample rack Hall sensor is a Hall board.

8. A PCB function detection device as claimed in claim 7, characterized in that: An LED lamp and a fan are installed on the top of the rear panel, and free ends of the LED lamp and the fan extend in a direction parallel to the front panel.

9. A PCB function detection device as claimed in claim 3, characterized in that: At least two supporting feet are arranged on the bottom surfaces of the left pad block and the right pad block.

10. A method for performing PCB function testing using the device described in any one of claims 1 to 9, characterized in that: The steps include: (1) Open the operating software and turn on the power switch to initialize the device; (2) On the software operation interface, select the corresponding test program according to the test requirements, and adjust the equipment parameters to the appropriate state as needed; (3) After starting the detection program, perform each function test one by one.

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