Discharge device and test system
Patent Information
- Application Number
- CN202521981056.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-09-15
- Publication Date
- 2026-09-25
- Estimated Expiration
- 2035-09-15
AI Technical Summary
[0002]在现有的电路板测试过程中，电路板上的电解电容在测试过后容易残留有未放掉的电，致使后续生产时与金属触碰则会造成短路，进而烧坏电路板上其他元器件，进而增加生产成本，故而需要人为进行放电，而人为进行放电所需的人力成本又过高
[0005]根据本申请实施例的放电装置，至少具有如下有益效果：通过设置载料板，便于承载被测电路板，导电组件的设置则便于与被测电路板的测试点或电解电容相接，以便被测电路板的测试和放电操作，压板设于载料板的上方，以便测试时，压板下压固定电路板，以确保电路板测试时的稳定，驱动组件与压板连接，以便驱动压板朝靠近或远离载料板的方向移动，放电组件的设置，则便于搭配压板，致使被测电路板测试完后自动放电，其具体过程为：测试时，驱动组件驱动压板下压至与被测电路板接触，此时，下压的压板带动开关断开，使得开关、放电器件和被测电路板电解电容所形成的回路截止，测试完成后，驱动组件驱动压板上升，进而不再压紧被测电路板，此时，上升的压板带动开关，使得开关、放电器件和被测电路板电解电容所形成的回路导通，进而对电解电容实现放电操作，以实现被测电路板测试完成后的自动放电，节约人力成本。
Smart Images
Figure CN224804857U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of circuit board testing technology, and in particular to a discharge device and testing system. Background Technology
[0002] In the existing circuit board testing process, electrolytic capacitors on the circuit board are prone to residual charge after testing. This can cause short circuits when they come into contact with metal during subsequent production, which can burn out other components on the circuit board and increase production costs. Therefore, manual discharge is required, but the labor cost required for manual discharge is too high. Utility Model Content
[0003] This application aims to address at least one of the technical problems existing in the prior art. To this end, this application proposes a discharge device and testing system that can automatically discharge circuit boards after testing, saving labor costs.
[0004] A discharge apparatus according to a first aspect of this application includes a carrier plate, a discharge assembly, and a pressure plate. A conductive component is provided on one side of the carrier plate. The discharge assembly includes a switch and a discharge device. One end of the switch is connected to one end of the discharge device. The other end of the switch is used to contact the positive terminal of an electrolytic capacitor on a circuit board under test through the conductive component. The other end of the discharge device is used to contact the negative terminal of the electrolytic capacitor on the circuit board under test through the conductive component, so that when the switch is closed, the switch, the discharge device, and the electrolytic capacitor on the circuit board under test form a closed circuit. A driving assembly is provided on the side of the pressure plate away from the carrier plate. The driving assembly is used to drive the pressure plate to move in a direction away from or closer to the carrier plate. The pressure plate is used to drive the switch to close or open.
[0005] The discharge device according to the embodiments of this application has at least the following beneficial effects: by setting a carrier plate, it is convenient to support the circuit board under test; the setting of the conductive component is convenient to connect with the test points or electrolytic capacitors of the circuit board under test, so as to facilitate the testing and discharge operation of the circuit board under test; the pressure plate is set above the carrier plate, so that during testing, the pressure plate presses down to fix the circuit board, so as to ensure the stability of the circuit board during testing; the drive component is connected to the pressure plate, so as to drive the pressure plate to move towards or away from the carrier plate; the setting of the discharge component is convenient to match the pressure plate, so that the circuit board under test is automatically discharged after testing. The specific process is as follows: during testing, the drive component drives the pressure plate to press down until it contacts the circuit board under test. At this time, the pressed pressure plate drives the switch to open, so that the circuit formed by the switch, the discharge device and the electrolytic capacitor of the circuit board under test is cut off. After the test is completed, the drive component drives the pressure plate to rise, so that it no longer presses the circuit board under test. At this time, the rising pressure plate drives the switch, so that the circuit formed by the switch, the discharge device and the electrolytic capacitor of the circuit board under test is connected, so as to realize the discharge operation of the electrolytic capacitor, thereby realizing the automatic discharge of the circuit board under test after testing, saving labor costs.
[0006] According to some embodiments of this application, it also includes a housing, wherein the material carrier plate, the discharge assembly and the pressure plate are all disposed within the housing, the material carrier plate is disposed at the bottom of the housing and the pressure plate is disposed above the material carrier plate.
[0007] According to some embodiments of this application, the conductive component includes a first pin and a second pin, the switch contacts the positive terminal of the electrolytic capacitor of the circuit board under test through the first pin, and the discharge device contacts the negative terminal of the electrolytic capacitor of the circuit board under test through the second pin.
[0008] According to some embodiments of this application, the switch is disposed on the inner side wall of the housing, and a push rod is provided on the side of the switch near the pressure plate. A spring is provided on the side of the peripheral wall of the pressure plate near the push rod. The spring is used to push the push rod vertically when the pressure plate moves toward or away from the material carrier plate, so as to drive the switch to close or open.
[0009] According to some embodiments of this application, the carrier plate is further provided with a groove, and the conductive component is disposed in the groove.
[0010] According to some embodiments of this application, the pressure plate is provided with a pressure strip on the side near the carrier plate, and the pressure strip is used to press the circuit board under test.
[0011] According to some embodiments of this application, the discharge device is a discharge resistor.
[0012] According to some embodiments of this application, a partition is further provided inside the housing, the drive assembly is disposed inside the housing, and the partition is used to separate the drive assembly and the pressure plate.
[0013] According to some embodiments of this application, the drive component is a pneumatic drive component.
[0014] The test system according to a second aspect embodiment of this application includes: The discharge device according to the first aspect of this application.
[0015] The testing system according to the embodiments of this application has at least the following beneficial effects: The carrier plate facilitates the support of the circuit board under test; the conductive components facilitate connection with the test points or electrolytic capacitors of the circuit board under test, enabling testing and discharge operations; the pressure plate is positioned above the carrier plate, allowing it to press down and fix the circuit board during testing, ensuring stability; the drive component is connected to the pressure plate, driving it to move closer to or further away from the carrier plate; and the discharge component facilitates automatic discharge of the circuit board after testing, specifically: during testing, the drive component drives the pressure plate to press down onto the circuit board under test. Upon contact, the downward-pressing pressure plate causes the switch to open, cutting off the circuit formed by the switch, the discharge device, and the electrolytic capacitor of the circuit board under test. After the test is completed, the drive assembly drives the pressure plate to rise, thus no longer pressing the circuit board under test. At this time, the rising pressure plate drives the switch, making the circuit formed by the switch, the discharge device, and the electrolytic capacitor of the circuit board under test conductive, thereby discharging the electrolytic capacitor. This achieves automatic discharge of the circuit board after the test is completed, saving labor costs. By using the discharge device of this application, the test system of this application no longer requires manual discharge operation, improving the efficiency and safety of the circuit board production process and saving labor costs.
[0016] Additional aspects and advantages of this application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of this application. Attached Figure Description
[0017] The above and / or additional aspects and advantages of this application will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which: Figure 1 This is a schematic diagram of the discharge device according to an embodiment of this application; Figure 2 This is a circuit diagram of the circuit formed by the switch, discharge device and the electrolytic capacitor of the circuit board under test, according to an embodiment of this application.
[0018] Figure label: Material carrier plate 100; conductive component 101; pressure plate 110; pressure strip 111; spring 112; drive component 120; switch 130; push rod 131; housing 140; partition 141; base 150; start button 151. Detailed Implementation
[0019] The embodiments of this application are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this application, and should not be construed as limiting this application.
[0020] In the description of this application, it should be understood that the orientation descriptions, such as up, down, front, back, left, right, etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.
[0021] In the description of this application, "several" means one or more, "more than" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. The use of "first" and "second" in the description is merely for distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.
[0022] In the description of this application, unless otherwise expressly defined, terms such as "setup," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this application in conjunction with the specific content of the technical solution.
[0023] Currently, in the production process of circuit boards, it is often necessary to test the circuit boards. After testing, the circuit boards may still have residual electricity in their electrolytic capacitors. This residual electricity may cause short circuits in subsequent production, burning out other components on the circuit board and increasing production costs. Manually discharging the tested circuit boards is too inefficient and labor-intensive, which also increases production costs accordingly.
[0024] Based on this, this application proposes a discharge device and testing system that can automatically discharge the circuit board after testing, thereby saving labor costs. At the same time, the discharge operation also avoids the residual current from damaging other components of the circuit board during subsequent circuit board production, thus reducing production costs.
[0025] It is understood that the discharge device of the first aspect embodiment of this application includes a carrier plate 100, a discharge assembly, and a pressure plate 110. A conductive assembly 101 is provided on one side of the carrier plate 100. The discharge assembly includes a switch 130 and a discharge device. One end of the switch 130 is connected to one end of the discharge device. The other end of the switch 130 is used to contact the positive terminal of the electrolytic capacitor C of the circuit board under test through the conductive assembly 101. The other end of the discharge device is used to contact the negative terminal of the electrolytic capacitor C of the circuit board under test through the conductive assembly 101, so that when the switch 130 is closed, the switch 130, the discharge device, and the electrolytic capacitor C of the circuit board under test form a closed circuit. A driving assembly 120 is provided on the side of the pressure plate 110 away from the carrier plate 100. The driving assembly 120 is used to drive the pressure plate 110 to move away from or closer to the carrier plate 100. The pressure plate 110 is used to drive the switch 130 to close or open.
[0026] The beneficial effects of the discharge device in this application embodiment are as follows: The carrier plate 100 facilitates the support of the circuit board under test; the conductive component 101 facilitates connection to the test points or electrolytic capacitor C of the circuit board under test, enabling testing and discharge operations; the pressure plate 110 is positioned above the carrier plate 100, allowing it to press down and fix the circuit board during testing, ensuring stability; the drive component 120 is connected to the pressure plate 110, driving it to move closer to or further away from the carrier plate 100; and the discharge component facilitates automatic discharge after testing of the circuit board, working in conjunction with the pressure plate 110. The specific process is as follows: During testing, the drive assembly 120 drives the pressure plate 110 to press down until it contacts the circuit board under test. At this time, the pressing pressure plate 110 drives the switch 130 to open, thus cutting off the circuit formed by the switch 130, the discharge device, and the electrolytic capacitor C of the circuit board under test. After the test is completed, the drive assembly 120 drives the pressure plate 110 to rise, and then stops pressing the circuit board under test. At this time, the rising pressure plate 110 drives the switch 130, thus making the circuit formed by the switch 130, the discharge device, and the electrolytic capacitor C of the circuit board under test open, thereby discharging the electrolytic capacitor C to achieve automatic discharge of the circuit board under test after the test is completed, saving labor costs.
[0027] For example, in some embodiments, reference is made to Figure 1 and Figure 2In this embodiment, a base 150 is also included. A carrier plate 100 is disposed on the base 150, and the circuit board under test is placed on the carrier plate 100. A pressure plate 110 is disposed above the circuit board under test and the carrier plate 100. The carrier plate 100 contacts the circuit board under test through a conductive component 101. A start button 151 is provided on the base 150. The start button 151 is electrically connected to a drive component 120. The conductive component 101 also contacts the contact test points on the circuit board. When the circuit board needs to be tested, the start button 151 is pressed, and the drive component 120 drives the pressure plate 110 to move towards the carrier plate 100 until it presses the circuit board under test to fix the position of the circuit board under test and prevent the position of the circuit board from shifting during testing, which would affect the validity of the test results. During the pressing process of the pressure plate 110, a switch is activated. When switch 130 is disconnected, the switch, the discharge device, and the electrolytic capacitor C of the circuit under test cannot form a closed loop, thus not affecting the circuit board testing process. When the test is completed, the drive assembly 120 starts to drive the pressure plate 110 to rise. The rising process of the pressure plate 110 will drive switch 130 to close, causing switch 130, the discharge device, and the electrolytic capacitor C of the circuit under test to form a closed loop. At this time, the electrolytic capacitor C of the circuit board under test begins to discharge. The charge in the electrolytic capacitor C can be discharged within two seconds. After the circuit board under test is discharged, it can be removed from the carrier plate 100 for the next processing step. At the same time, another circuit board to be tested is placed on the carrier plate 100 for the next round of testing and discharge. This realizes the automatic discharge operation after the circuit board test, thereby saving labor costs.
[0028] It should be noted that multiple carrier boards 100 can be provided, thereby enabling simultaneous testing or discharge operations on multiple circuit boards under test, which improves the testing efficiency of the circuit boards under test.
[0029] It is understood that the discharge device of this application also includes a housing 140, a material carrier plate 100, a discharge assembly and a pressure plate 110, all of which are disposed inside the housing 140. The material carrier plate 100 is disposed at the bottom of the housing 140 and the pressure plate 110 is disposed above the material carrier plate 100.
[0030] For example, in some embodiments, reference is made to Figure 1 In this embodiment, the housing 140 is placed on the base 150, and the carrier plate 100, the discharge assembly and the pressure plate 110 are all disposed inside the housing to provide certain protection for the carrier plate 100, the discharge assembly and the pressure plate 110, and to avoid damage to the devices caused by accidental bumps during use. The housing 140 is not a closed structure, and an opening is provided on one side of the housing 140 to facilitate the operator to replace the circuit board under test carried on the carrier plate 100 through the opening.
[0031] It is understood that the conductive component 101 includes a first pin and a second pin. The switch 130 contacts the positive terminal of the electrolytic capacitor C on the circuit board under test through the first pin, and the discharge device contacts the negative terminal of the electrolytic capacitor C on the circuit board under test through the second pin, so that the switch 130, the discharge device and the electrolytic capacitor C on the circuit board under test can form a closed return current through the first pin and the second pin.
[0032] For example, in some embodiments, reference is made to Figure 1 and Figure 2 In this embodiment, the conductive pin also includes a third pin, which is used to contact the contact test point on the circuit board under test. The switch 130 contacts the positive terminal of the electrolytic capacitor C on the circuit board under test through the first pin, and the discharge device contacts the negative terminal of the electrolytic capacitor C on the circuit board under test through the second pin.
[0033] In other embodiments, there are multiple first pins and multiple second pins, with each of the multiple first pins and multiple second pins corresponding to one another, so as to simultaneously discharge multiple electrolytic capacitors C on the circuit board under test.
[0034] It is understood that: the switch 130 is located on the inner wall of the housing 140, and the side of the switch 130 near the pressure plate 110 is provided with a push rod 131. The side of the peripheral wall of the pressure plate 110 near the push rod 131 is provided with a spring piece 112. The spring piece 112 is used to push the push rod 131 in the vertical direction when the pressure plate 110 moves towards or away from the material carrier plate 100, so as to drive the switch 130 to close or open.
[0035] For example, in some embodiments, reference is made to Figure 1 and Figure 2In this embodiment, the inner peripheral wall of the housing 140 is provided with a box, and the switch 130 is placed inside the box to protect the switch 130 and prevent accidental damage during use, thereby improving maintenance costs. One side of the box has an opening, and one end of the push rod 131 is connected to the switch 130 inside the box. The other end of the push rod 131 extends out of the box through the opening in a direction parallel to the material carrier plate 100. A spring piece 112 is provided on the peripheral wall of the pressure plate 110 near the box. During operation: initially, the spring piece 112 is located above the push rod 131. During testing, the driving device drives the pressure plate 110 to move towards the material carrier plate 100 until the pressure plate 110... When the pressure plate 110 presses down on the circuit board under test, the spring 112 first contacts the upper side wall of the push rod 131, thus pushing the push rod 131 downward along the opening, causing the push rod 131 to disconnect the switch 130. The distance that the push rod 131 can move is less than the moving distance of the pressure plate 110. When the push rod 131 moves to its limit distance, the spring 112 can no longer push the push rod 131 downward, but the spring 112 still needs to follow the pressure plate 110 to continue moving downward. At this time, the part of the spring 112 that contacts the push rod 131 will bend away from the push rod 131 until the spring 112 leaves the blocking range of the push rod 131, and the elastic potential energy of the spring 112 is released. Release and then naturally reset, at which point the spring 112 is positioned below the push rod 131. After the test is completed, the drive assembly 120 drives the pressure plate 110 to rise. During the rise of the pressure plate 110, the spring 112 will first contact the lower side wall of the push rod 131, thereby pushing the push rod 131 to move upward along the opening, causing the push rod 131 to drive the switch 130 to close, so that the switch 130, the discharge device, and the electrolytic capacitor C of the circuit under test form a closed circuit, thereby realizing the discharge operation. When the push rod 131 moves to the limit distance, the spring 112 can no longer drive the push rod 131 to move upward, but the spring 112 still needs to follow the pressure plate 110 to continue to move upward. At this time, the spring 112 contacts the push rod 131. The portion of the spring 112 will bend away from the push rod 131 until it is out of the blocking range of the push rod 131. The elastic potential energy of the spring 112 is released and it naturally resets. At this time, the position of the spring 112 is back above the push rod 131 so that the spring 112 can still drive the push rod 131 to press down in the next round of testing. This causes the circuit formed by the switch 130, the discharge device and the electrolytic capacitor C of the circuit under test to no longer close, so that the discharge no longer occurs. This allows the circuit board under test to be tested normally. That is, the discharge process of the electrolytic capacitor C of the circuit board under test does not interfere with the test process of the circuit board under test. Therefore, there is no need for manual reset of the switch 130 and the spring 112, which further saves labor costs.
[0036] It is understandable that the carrier plate 100 is also provided with a groove, and the conductive component 101 is located in the groove.
[0037] For example, in some embodiments, reference is made to Figure 1 In this embodiment, the carrier plate 100 has a groove on the side near the pressure plate 110, and the conductive component 101 is placed in the groove, so that the conductive component 101 does not protrude too much from the carrier plate 100. This avoids the components on the circuit board colliding with the protruding conductive component 101 when the circuit board under test is replaced, which would cause damage to the components or the conductive component 101 and thus increase maintenance costs. At the same time, the groove also allows the components on the side of the circuit board under test facing the carrier plate 100 to be accommodated in the groove during discharge or testing, thereby playing a certain protective role and avoiding external interference.
[0038] It is understandable that the pressure plate 110 has a pressure strip 111 on the side near the carrier plate 100, and the pressure strip 111 is used to press the circuit board under test.
[0039] For example, in some embodiments, reference is made to Figure 1 In this embodiment, the pressure plate 110 is provided with multiple pressure strips 111 on the side near the carrier plate 100. When the driving assembly 120 drives the pressure plate 110 to press down, the pressure strips 111 will press against the gap of the circuit board under test, thereby achieving the effect of pressing the circuit board under test, avoiding the pressure plate 110 from squeezing the components on the side of the circuit board under test near the pressure plate 110, which would cause unnecessary damage to the components and thus increase the maintenance cost.
[0040] It is understandable that the discharge device is a discharge resistor R.
[0041] For example, in some embodiments, reference is made to Figure 2 In this embodiment, the discharge device is a discharge resistor R, which enables the electrolytic capacitor C under test to be effectively discharged when a closed circuit is formed, while also having a lower cost, thus reducing the manufacturing cost of the discharge device of this application.
[0042] It is understood that a partition 141 is also provided inside the housing 140, and the drive assembly 120 is located inside the housing 140. The partition 141 is used to separate the drive assembly 120 and the pressure plate 110.
[0043] For example, in some embodiments, reference is made to Figure 1 In this embodiment, by setting a partition 141, the drive assembly 120 and the pressure plate 110 are separated to prevent some impurities that come into contact with the pressure plate 110 when pressing the circuit board from contaminating the drive assembly 120, thereby extending the service life of the drive assembly 120 and ensuring the stable operation of the drive assembly 120.
[0044] It is understandable that the drive assembly 120 is a pneumatic drive component.
[0045] For example, in some embodiments, reference is made to Figure 1 In this embodiment, the drive assembly 120 uses a pneumatic drive component. The use of a gas drive component makes the force applied to the pressure plate 110 more stable and reliable, so as to avoid damaging the circuit board and its components under test by applying force. At the same time, some pneumatic drive components may discharge air carrying a small amount of oil mist when driven by compressed air. By setting a partition plate, the oil mist can be prevented from being transferred to the pressure plate 110 and then contaminating the circuit board under test through the pressure plate 110.
[0046] The test system according to the second aspect of the application includes the discharge device of the first aspect of the application described above.
[0047] According to the test system of this application embodiment, the present application provides a carrier plate 100 to facilitate the support of the circuit board under test. The conductive component 101 is provided to facilitate connection with the test points or electrolytic capacitor C of the circuit board under test, so as to facilitate the testing and discharge operation of the circuit board under test. The pressure plate 110 is provided above the carrier plate 100 so that the pressure plate 110 can press down and fix the circuit board during testing to ensure the stability of the circuit board during testing. The driving component 120 is connected to the pressure plate 110 so as to drive the pressure plate 110 to move towards or away from the carrier plate 100. The discharge component is provided to facilitate the automatic discharge of the circuit board under test after testing, in conjunction with the pressure plate 110. The specific process is as follows: during testing, the driving component 120 drives the pressure plate 110 to press down to the circuit board under test. When the circuit board contacts, the pressing plate 110 drives the switch 130 to disconnect, thus cutting off the circuit formed by the switch 130, the discharge device, and the electrolytic capacitor C of the circuit board under test. After the test is completed, the drive assembly 120 drives the pressing plate 110 to rise, thereby no longer pressing the circuit board under test. At this time, the rising pressing plate 110 drives the switch 130, thus making the circuit formed by the switch 130, the discharge device, and the electrolytic capacitor C of the circuit board under test conductive, thereby discharging the electrolytic capacitor C. This achieves automatic discharge of the circuit board after the test is completed, saving labor costs. By using the discharge device of this application, the test system of this application no longer requires manual discharge operation, improving the efficiency and safety of the circuit board production process and saving labor costs.
[0048] Since the test system includes the discharge device of the first aspect embodiment, the corresponding contents of the discharge device in the first aspect embodiment can be applied to the test system of the second aspect, and have the same implementation principle and technical effect. To avoid redundancy, they will not be described in detail here.
[0049] The embodiments of this application have been described in detail above with reference to the accompanying drawings. However, this application is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of this application.
Claims
1. A discharge device, characterized in that, include: A carrier plate, wherein a conductive component is provided on one side of the carrier plate; A discharge assembly includes a switch and a discharge device. One end of the switch is connected to one end of the discharge device, and the other end of the switch is used to contact the positive terminal of the electrolytic capacitor on the circuit board under test through the conductive component. The other end of the discharge device is used to contact the negative terminal of the electrolytic capacitor on the circuit board under test through the conductive component, so that when the switch is closed, the switch, the discharge device, and the electrolytic capacitor on the circuit board under test form a closed circuit. A pressure plate is provided with a driving component on the side of the pressure plate away from the material carrier plate. The driving component is used to drive the pressure plate to move in a direction away from or close to the material carrier plate. The pressure plate is used to drive the switch to close or open.
2. The discharge device according to claim 1, characterized in that, It also includes a housing, in which the material carrier plate, the discharge assembly and the pressure plate are all disposed. The material carrier plate is disposed at the bottom of the housing and the pressure plate is disposed above the material carrier plate.
3. The discharge device according to claim 2, characterized in that, The conductive component includes a first pin and a second pin. The switch contacts the positive terminal of the electrolytic capacitor on the circuit board under test through the first pin, and the discharge device contacts the negative terminal of the electrolytic capacitor on the circuit board under test through the second pin.
4. The discharge device according to claim 3, characterized in that, The switch is located on the inner wall of the housing. A push rod is provided on the side of the switch near the pressure plate. A spring is provided on the side of the pressure plate near the push rod. The spring is used to push the push rod vertically when the pressure plate moves toward or away from the material carrier plate, so as to drive the switch to close or open.
5. The discharge device according to claim 1, characterized in that, The carrier plate is also provided with a groove, and the conductive component is disposed in the groove.
6. The discharge device according to claim 1, characterized in that, The pressure plate has a pressure strip on the side near the carrier plate, and the pressure strip is used to press the circuit board under test.
7. The discharge device according to claim 1, characterized in that, The discharge device is a discharge resistor.
8. The discharge device according to claim 2, characterized in that, The housing is further provided with a partition, and the drive assembly is disposed inside the housing. The partition is used to separate the drive assembly and the pressure plate.
9. The discharge device according to claim 1, characterized in that, The drive component is a pneumatic drive unit.
10. A testing system, characterized in that, include: The discharge device according to any one of claims 1 to 9.