Lever pressing test device

Abstract

The invention relates to the technical field of automation equipment, discloses a lever pressing test device, and effectively solves many problems of manual pressing of a traditional test device by adopting the lever principle. Firstly, by means of cooperation of the lever handle and the cam structure, stable pressing of a tested device can be achieved with small operating force, the physical burden of a tester is remarkably relieved, the risk of occupational strain caused by long-term repeated force application is reduced, and meanwhile the working efficiency is improved. And secondly, a stable fixing mechanism is provided for the device through the adaptive hooking design of the hooking piece and the buckling piece on the base, and the device is ensured not to be loosened in the test process, so that the accuracy of a test result is ensured. In addition, the device is simple in structure and convenient to operate, has high practicability and reliability, and can effectively improve the quality and efficiency of the electrical test of the electronic device.

Description

Technical Field

[0001] The present invention relates to the technical field of automated equipment, and in particular, to a lever pressing test device. Background Art

[0002] During the production process of electronic devices, performing electrical tests on the devices under test is an important link to ensure product quality.

[0003] Currently, traditional test devices usually adopt a simple pressing method, applying pressure manually to the device under test to make it contact the probe module. However, this method has the following problems:

[0004] 1. During the operation of manually applying pressure, due to the lack of effective mechanical assistance, testers often need to apply a relatively large force to ensure sufficient contact between the device under test and the probe module. This high-intensity physical labor not only causes testers to easily feel fatigued, reducing work efficiency, but also may lead to occupational strain due to long-term repetitive exertion, posing a potential threat to the physical health of testers;

[0005] 2. There is a lack of a stable fixing mechanism, and it is prone to loosening during the test process, affecting the accuracy of the test results.

[0006] Therefore, it is necessary to improve the existing technology.

[0007] The above information is given as background information only to assist in understanding the present disclosure, and does not determine or admit whether any of the above content can be used as prior art relative to the present disclosure. Summary of the Invention

[0008] The present invention provides a lever pressing test device to solve the problems existing in the prior art.

[0009] To achieve the above object, the present invention provides the following technical solutions:

[0010] A lever pressing test device includes a base, a probe module, and a lever pressing-down assembly; wherein,

[0011] The base is provided with a groove for placing the device under test;

[0012] The probe module is arranged in the groove and located below the device under test, and is used for electrically connecting with the device under test to test the device under test;

[0013] The lever pressing-down assembly is detachably covered on the base, and is used for pressing down the device under test located in the groove and placed on the probe module by using the lever principle to cooperate with the probe module for testing;

[0014] The lever pressing-down assembly includes a pressing-down mechanism, a cover body, a lever handle, a cam structure, and a hook member;

[0015] An installation cavity is formed on one side of the cover body facing the base; an installation block is provided on one side of the cover body away from the base;

[0016] The pressing-down mechanism is arranged in the installation cavity and can contact the device under test when the lever pressing-down assembly is closed on the base;

[0017] The cam structure is rotatably arranged on the installation block;

[0018] The lever handle is connected to the cam structure and can be rotated from the initial position to the pressing-down position by operating the lever handle, which can drive the cam structure to rotate eccentrically, thereby pressing down the cover body and the pressing-down mechanism so that the pressing-down mechanism applies a downward pressure to the device under test;

[0019] The hook member is arranged on the cover body and is used for fitting and hooking with the buckle member on the base when the lever pressing-down assembly is closed on the base, so as to firmly fix the lever pressing-down assembly on the base.

[0020] Further, in the lever pressing test device, the pressing-down mechanism includes a first pressing plate, a second pressing plate, and a spring floating assembly;

[0021] The first pressing plate and the second pressing plate are arranged in sequence from top to bottom in the installation cavity; the second pressing plate can contact the device under test when the lever pressing-down assembly is closed on the base;

[0022] The spring floating assembly is arranged between the first pressing plate and the second pressing plate and can provide elastic buffering when the pressing-down mechanism applies a downward pressure to the device under test.

[0023] Further, in the lever pressing test device, the spring floating assembly includes a plurality of springs and guide posts;

[0024] The guide posts penetrate through the first pressing plate and the second pressing plate and are used to ensure the smooth relative movement of the first pressing plate and the second pressing plate in the vertical direction;

[0025] The springs are sleeved on the guide posts and are located between the first pressing plate and the second pressing plate and are used to provide elastic buffering.

[0026] Further, in the lever pressing test device, the pressing-down mechanism further includes a heat dissipation structure;

[0027] The heat dissipation structure passes through the first pressing plate and contacts the second pressing plate, and is used to cooperate with the second pressing plate to conduct and dissipate the heat generated by the device under test during the test when the second pressing plate applies a downward pressure to the device under test.

[0028] Further, in the lever pressing and testing device, the heat dissipation structure is a heat dissipation fin;

[0029] The heat dissipation fin has a fin-like structure, and its surface is coated with a heat dissipation coating with a high emissivity.

[0030] Further, the lever pressing and testing device further includes a guiding pin;

[0031] The guiding pin is arranged on the base;

[0032] The cover body is provided with a guiding hole adapted to the guiding pin;

[0033] The guiding pin penetrates through the guiding hole and is used to guide the cover body to accurately align with the base along a predetermined direction when the lever pressing assembly covers the base.

[0034] Further, in the lever pressing and testing device, the guiding pin includes a positioning section and a guiding section;

[0035] The positioning section is arranged on the base and is used to cooperate with the guiding hole to realize the precise positioning of the cover body;

[0036] The guiding section has a conical structure and is connected to the positioning section; the diameter of the guiding section gradually decreases from the direction close to the base to the direction away from the base, and is used to guide the guiding hole to be smoothly docked with the positioning section when the cover body approaches the base.

[0037] Further, in the lever pressing and testing device, the mounting block is provided with a mounting hole;

[0038] An anti-fooling component is arranged in the mounting hole;

[0039] The anti-fooling component includes an anti-fooling pin and an anti-fooling spring;

[0040] The anti-fooling spring is sleeved on the anti-fooling pin;

[0041] When operating the lever handle to drive the eccentric rotation of the cam structure, the lever handle contacts the anti-fooling pin and overcomes the elastic restoring force of the anti-fooling spring to push the anti-fooling pin to abut against the hook member, so as to prevent the hook member from accidentally loosening.

[0042] Further, in the lever pressing and testing device, the mounting block is further provided with an oil injection hole;

[0043] The oil injection hole is used for injecting lubricating oil to reduce the frictional force during the operation of the lever pressing component.

[0044] Further, in the lever pressing test device, when the lever handle is operated to rotate from the initial position to the pressing position, the formula for the force applied to the lever handle is:

[0045] F1 = (F2 * L2) / L1;

[0046] Wherein, F1 is the force applied to the lever handle, L1 is the distance from the end of the lever handle to the center of the rotation axis of the cam structure, F2 is the downward pressure applied by the cam structure to the device under test, and L2 is the distance from the center of the rotation axis of the cam structure to the protruding portion where the cam structure abuts against the cover body.

[0047] Compared with the prior art, the present invention has the following beneficial effects:

[0048] A lever pressing test device provided by the present invention effectively solves many problems of manual pressing of traditional test devices by adopting the lever principle. First, by using the cooperation of the lever handle and the cam structure, stable pressing of the device under test can be achieved with a smaller operating force, significantly reducing the physical burden on the tester, reducing the risk of occupational strain caused by long-term repeated exertion, and improving work efficiency at the same time. Second, the matching hook design of the hook member and the buckle member on the base provides a stable fixing mechanism for the device, ensuring that it will not loosen during the test, thus guaranteeing the accuracy of the test results. In addition, the device has a simple structure and convenient operation, with high practicability and reliability, and can effectively improve the quality and efficiency of electrical testing of electronic devices.

[0049] The present invention has other characteristics and advantages, which will be obvious from the accompanying drawings incorporated herein and the subsequent specific embodiments, or will be described in detail in the accompanying drawings incorporated herein and the subsequent specific embodiments, and these accompanying drawings and specific embodiments are jointly used to explain the specific principles of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0050] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the accompanying drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present invention, and those of ordinary skill in the art can also obtain other drawings based on these drawings without creative efforts.

[0051] Figure 1 is one of the structural schematic diagrams of a lever pressing test device provided by an embodiment of the present invention;

[0052] Figure 2 It is the second schematic structural diagram of a lever pressing test device provided by an embodiment of the present invention;

[0053] Figure 3 It is the schematic cross-sectional structure diagram of a lever pressing test device provided by an embodiment of the present invention;

[0054] Figure 4 It is the schematic structural diagram of the base and the probe module provided by an embodiment of the present invention;

[0055] Figure 5 It is the third schematic structural diagram of a lever pressing test device provided by an embodiment of the present invention;

[0056] Figure 6 It is the fourth schematic structural diagram of a lever pressing test device provided by an embodiment of the present invention;

[0057] Figure 7 It is the fifth schematic structural diagram of a lever pressing test device provided by an embodiment of the present invention;

[0058] Figure 8 It is the sixth schematic structural diagram of a lever pressing test device provided by an embodiment of the present invention;

[0059] Figure 9 It is the schematic diagram of L1 and L2 mentioned in an embodiment of the present invention.

[0060] Reference numerals:

[0061] Base 1, probe module 2, lever pressing-down component 3, groove 4, device under test 5, buckle member 6, guide pin 7;

[0062] Pressing-down mechanism 301, cover body 302, lever handle 303, cam structure 304, hook member 305, installation cavity 306, installation block 307, anti-fooling component 308, oil injection hole 309;

[0063] First pressing plate 3011, second pressing plate 3012, spring floating component 3013, heat dissipation structure 3014. Detailed implementation manners

[0064] To illustrate in detail the possible application scenarios, technical principles, specific implementable solutions, achievable purposes and effects of the present application, the following is described in detail with reference to the specific embodiments listed and the accompanying drawings. The embodiments described herein are only used to more clearly illustrate the technical solutions of the present application, so they are only used as examples and cannot be used to limit the protection scope of the present application.

[0065] Reference to "embodiment" in this application means that the specific features, structures or characteristics described in connection with the embodiment may be included in at least one embodiment of the present application. The term "embodiment" appearing at various positions in the specification does not necessarily refer to the same embodiment, nor does it particularly limit its independence or relevance to other embodiments. In principle, in the present application, as long as there is no technical contradiction or conflict, the technical features mentioned in each embodiment can be combined in any way to form corresponding implementable technical solutions.

[0066] Unless otherwise defined, the meanings of the technical terms used herein are the same as those commonly understood by those skilled in the technical field to which this application belongs; the use of the relevant terms herein is only for describing specific embodiments and is not intended to limit this application.

[0067] In the description of this application, the phrase "and / or" is an expression used to describe the logical relationship between objects, indicating that there can be three relationships, for example, A and / or B, which means: there is A, there is B, and there is both A and B at the same time. In addition, the character " / " herein generally represents an "or" logical relationship between the associated objects before and after.

[0068] In this application, terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual quantitative, primary or secondary, or sequential relationship between these entities or operations.

[0069] Without further limitation, in this application, the use of "comprising", "including", "having" or other similar expressions in a statement is intended to cover non-exclusive inclusion. These expressions do not exclude the possibility that there may be additional elements in the process, method or product including the said elements, so that a process, method or product including a series of elements may include not only those defined elements, but also other elements not explicitly listed, or elements inherent to such process, method or product.

[0070] In this application, expressions such as "greater than", "less than", "exceeding" are understood not to include the number itself; expressions such as "above", "below", "within" are understood to include the number itself. In addition, in the description of the embodiments of this application, the meaning of "plurality" is two or more (including two), and similar expressions related to "many", such as "multiple groups", "multiple times", etc., are understood in this way unless otherwise specifically defined.

[0071] In the description of the embodiments of the present application, the spatially related expressions used, such as "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "perpendicular", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., the indicated orientation or positional relationship is based on the orientation or positional relationship shown in the specific embodiments or drawings. It is only for the convenience of describing the specific embodiments of the present application or for the reader's understanding, rather than indicating or implying that the device or component referred to must have a specific position, a specific orientation, or be constructed or operated in a specific orientation. Therefore, it should not be construed as a limitation to the embodiments of the present application.

[0072] Unless otherwise clearly specified or limited, in the description of the embodiments of the present application, the terms such as "installed", "connected", "connected to", "fixed", "set", etc. should be understood in a broad sense. For example, the "connection" can be a fixed connection, a detachable connection, or an integral setting; it can be a mechanical connection, an electrical connection, or a communication connection; it can be directly connected, or indirectly connected through an intermediate medium; it can be the communication inside two components or the interaction relationship between two components. For those skilled in the art to which the present application pertains, the specific meanings of the above terms in the embodiments of the present application can be understood according to specific circumstances.

[0073] Please refer to Figures 1-8 , the embodiments of the present invention provide a lever pressing test device, including a base 1, a probe module 2, and a lever pressing component 3; the structural features, connection relationships, and working principles of each component of the device will be comprehensively and deeply analyzed below:

[0074] The base 1 serves as the basic support structure of the entire test device. A groove 4 with specific specifications is precisely opened on its upper surface. This groove 4 is specifically designed for placing the device under test 5. Through the precise adaptation of dimensions and shapes, it ensures that the device under test 5 can be stably in a predetermined position during the test, avoiding affecting the test accuracy due to position deviation.

[0075] The probe module 2 is precisely arranged inside the groove 4. And when the device under test 5 is placed in the groove 4, the specific position of the probe module 2 is directly below the device under test 5. The probe module 2 is composed of a plurality of high-precision probes arranged in an orderly manner. These probes have excellent electrical conductivity and mechanical stability, and can achieve reliable electrical connection with the corresponding test points of the device under test 5. During the test, the probe module 2 accurately transmits the test signal to the device under test 5 through electrical contact with it, and collects the electrical parameters fed back by it, thereby completing the comprehensive test and verification of various electrical performance indicators of the device under test 5.

[0076] The lever pressing component 3 is coverably mounted on the base 1 in a separable manner. The design of this component fully utilizes the lever principle, aiming to achieve stable pressing of the device under test 5 with a relatively small operating force, and then cooperate with the probe module 2 to complete efficient electrical testing operations. Specifically, the lever pressing component 3 is precisely composed of key components such as a pressing mechanism 301, a cover body 302, a lever handle 303, a cam structure 304, and a hook member 305.

[0077] The cover body 302 serves as the main structure of the lever pressing component 3. On the side facing the base 1, an installation cavity 306 with an appropriate depth is provided. This installation cavity 306 provides a stable installation space for the pressing mechanism 301. On the side of the cover body 302 away from the base 1, a structurally strong installation block 307 is provided. This installation block 307 provides a reliable support platform for the installation and rotation of the cam structure 304.

[0078] The pressing mechanism 301 is precisely arranged inside the installation cavity 306, and its position corresponds to the device under test 5. When the lever pressing component 3 is mounted on the base 1, the pressing mechanism 301 can be in close contact with the upper surface of the device under test 5, making full preparations for subsequent pressing operations.

[0079] The cam structure 304 is rotatably arranged on the installation block 307 through a precision bearing. Its unique eccentric wheel design enables significant displacement changes during rotation, thereby providing strong power support for the pressing operation.

[0080] The lever handle 303 is tightly connected to the cam structure 304 through a mechanical connector. By operating the lever handle 303, a tester can smoothly rotate it from the initial position (such as Figure 1 shown) to the pressing position (such as Figure 2 shown). During this process, the movement of the lever handle 303 will drive the cam structure 304 to perform eccentric rotation, thereby synchronously pressing the cover body 302 and the pressing mechanism 301, enabling the pressing mechanism 301 to apply a precisely controllable downward force to the device under test 5. This pressing method based on the lever principle not only significantly reduces the operation difficulty and physical exertion of the tester, but also ensures the uniformity and stability of the downward force, providing strong guarantee for high-quality electrical testing.

[0081] The hook member 305 is ingeniously arranged at a specific position of the cover 302. When the lever pressing assembly 3 is closed on the base 1, the hook member 305 can be precisely and adaptively hooked with the buckle member 6 preset on the base 1. This unique hooking design provides a stable and reliable fixing mechanism for the entire testing device, effectively preventing test errors caused by device loosening during the testing process, thereby ensuring the accuracy and reliability of the test results.

[0082] It should be emphasized that the lever pressing test device proposed in the embodiment of the present invention successfully solves many problems existing in the traditional test device during the manual pressing process by ingeniously applying the lever principle. First, with the synergistic effect of the lever handle 303 and the cam structure 304, the tester only needs to apply a small operating force to achieve stable pressing of the device under test 5. This innovative design not only significantly reduces the physical burden on the tester, reduces the risk of occupational strain caused by long-term repeated exertion, but also greatly improves the efficiency and comfort of the testing work. Second, the matching and hooking design of the hook member 305 and the buckle member 6 on the base 1 provides unparalleled stability for the device, ensuring that the device always remains stable during the testing process, thus laying a solid foundation for obtaining accurate and reliable test results. In addition, the overall structure of the device is simple and clear, the operation is convenient and efficient, with high practicability and reliability, which can effectively improve the quality and efficiency of the electrical property testing of electronic devices, and provide strong technical support for the quality inspection work in the electronic manufacturing industry.

[0083] In a specific and feasible implementation manner presented in this embodiment, the pressing mechanism 301, as the core component of the lever pressing assembly 3 to achieve the precise pressing function, has a precise internal structure and clear functions, and is mainly composed of three key components: the first pressing plate 3011, the second pressing plate 3012, and the spring floating assembly 3013 working together.

[0084] The first pressing plate 3011 and the second pressing plate 3012 are arranged in a strict upper and lower hierarchical structure in the specific installation space of the installation cavity 306. Among them, the first pressing plate 3011 is used as the upper support structure of the pressing mechanism 301, and its material is usually selected from high-strength, low-deformation metal alloys to ensure that it can maintain a stable structural form when subjected to the pressing force, and avoid affecting the accuracy and stability of the pressing due to excessive deformation. The second pressing plate 3012 is used as the lower-layer execution component that directly contacts the device under test 5. Its surface is finely polished and anti-statically treated to reduce the friction and electrostatic interference that may be generated when contacting the device under test 5, and to ensure the safety and reliability of the device under test 5 during the test process. When the lever pressing assembly 3 is precisely covered on the base 1, the second pressing plate 3012 can just achieve close and non-deviation contact with the upper surface of the device under test 5 placed in the groove 4 of the base 1, laying a solid foundation for the subsequent pressing operation.

[0085] The spring floating assembly 3013, as the core assembly for realizing the elastic buffering function in the pressing mechanism 301, is cleverly arranged between the first pressing plate 3011 and the second pressing plate 3012. Specifically, when the tester operates the lever handle 303 to make the pressing mechanism 301 start to apply downward pressure to the device under test 5, the spring floating assembly 3013 will be appropriately compressed to absorb part of the impact energy of the downward pressure, thereby avoiding irreversible damage to the device under test 5 caused by the momentary excessive downward pressure. At the same time, the elastic restoring force of the spring can ensure that the pressing mechanism 301 can be quickly and smoothly reset after completing the pressing action, so as to prepare for the next test.

[0086] In summary, the pressing mechanism 301 in this embodiment realizes the precise pressing and elastic buffering functions on the device under test 5 through the coordinated cooperation of the first pressing plate 3011 , the second pressing plate 3012 and the spring floating assembly 3013 .

[0087] In a specific and innovative implementation manner provided in this embodiment, the spring floating assembly 3013 serves as the core functional module of the downward pressing mechanism 301 to realize elastic buffering and precise downward pressing regulation. Its internal structure is precise and its functional division is clear. It is mainly composed of two core components, namely, a plurality of springs and guide columns.

[0088] The guide column is a key structural component to ensure the relative stability of the first pressing plate 3011 and the second pressing plate 3012. It is made of high-strength, low-deformation metal alloy material, and its surface is finely ground and plated to improve its wear resistance and corrosion resistance. The guide column accurately penetrates the first pressing plate 3011 and the second pressing plate 3012 in a direction perpendicular to the plane of the two. Its number and layout have been strictly optimized by mechanical simulation and experiments to ensure that the stress can be evenly dispersed when the downward pressure is applied, and to avoid structural deformation due to local stress concentration. During the test, when the lever pressing assembly 3 begins to apply downward pressure to the device under test 5, the guide column can strictly limit the movement trajectory of the first pressing plate 3011 and the second pressing plate 3012, so that they only have relative displacement in the vertical direction, effectively preventing the uneven downward pressure caused by lateral deviation or shaking, thereby ensuring the accuracy and stability of the downward pressure applied by the pressing mechanism 301 to the device under test 5 in the vertical direction.

[0089] The spring is the core elastic element for realizing the elastic buffering function in the spring floating assembly 3013. Its selection comprehensively considers multiple key parameters such as spring stiffness, elastic limit, fatigue life, etc., so as to ensure that it has good elastic recovery performance and long-term stability while meeting the pressure requirements of the test device. The spring is precisely installed on the guide column in a sleeve-type manner. Its number and layout correspond to the guide column one by one, and it is located in the specific space formed between the first pressing plate 3011 and the second pressing plate 3012. During the test, when the tester operates the lever handle 303 to make the pressing mechanism 301 start to apply pressure to the device under test 5, the spring will undergo appropriate compression deformation to absorb and buffer part of the impact energy of the pressure. This elastic buffering effect can not only effectively reduce the impact force borne by the device under test 5 at the moment of the test, and avoid damage to the internal circuit or structure of the device under test 5 due to sudden change of pressure, but also ensure that the pressing mechanism 301 can quickly and smoothly return to the initial state with the help of the elastic recovery force of the spring after completing the pressing action, so as to be fully prepared for the next test. At the same time, the elastic characteristics of the spring can also automatically compensate, to a certain extent, for the problem of uneven downward pressure caused by height differences or manufacturing tolerances of the device under test 5, further improving the adaptability and accuracy of the test.

[0090] In summary, the spring floating assembly 3013 in this embodiment achieves precise guidance and elastic buffering function for the relative movement between the first pressing plate 3011 and the second pressing plate 3012 in the pressing mechanism 301 through the coordinated cooperation between the guide column and the spring.

[0091] In one implementation of this embodiment, in addition to undertaking the basic functions of pressing down and buffering, the pressing-down mechanism 301 further innovatively adds a key component, the heat dissipation structure 3014, to address the problem of heat accumulation caused by energy loss during the testing of electronic devices, thereby ensuring the stability of the testing environment and the performance reliability of the device under test 5.

[0092] As the core module in the pressing-down mechanism 301 for realizing efficient heat conduction and dissipation functions, the design concept of the heat dissipation structure 3014 fully integrates the principles of thermodynamics and knowledge of mechanical structure engineering. This structure is made of a metal alloy material with high thermal conductivity and low thermal resistance (such as copper-aluminum alloy or pure copper material), and its surface undergoes precise oxidation treatment and micro-structure processing to improve its surface radiation heat dissipation efficiency and contact heat conduction performance. The heat dissipation structure 3014 passes through the first pressing plate 3011 in a through layout, and its lower end is in close and gapless contact with the upper surface of the second pressing plate 3012 through precise positioning. This through design not only ensures the structural stability of the heat dissipation structure 3014 in the vertical direction but also provides a physical channel for the rapid conduction of heat from the device under test 5 to the external environment.

[0093] During the testing process, when the second pressing plate 3012 applies an accurate downward pressure to the device under test 5 according to the testing requirements, the device under test 5 generates heat due to the operation of its internal circuit or power loss. At this time, the heat dissipation structure 3014, relying on its close contact with the second pressing plate 3012, can quickly absorb the heat conducted from the second pressing plate 3012 by the device under test 5 and further conduct the heat to the external heat dissipation environment through its body structure with high thermal conductivity characteristics. Specifically, the heat conduction path of the heat dissipation structure 3014 can be divided into three stages: First, the heat is transferred from the device under test 5 to the second pressing plate 3012 through contact heat conduction; Second, the heat is conducted to the inside of the heat dissipation structure 3014 in a more efficient manner through the contact interface between the second pressing plate 3012 and the heat dissipation structure 3014; Finally, the heat dissipation structure 3014 dissipates the heat into the surrounding air through the combination of surface radiation heat dissipation and convective heat dissipation or further exports it through auxiliary heat dissipation devices (such as heat dissipation fans or liquid cooling systems).

[0094] In summary, in this embodiment, the pressing-down mechanism 301 realizes the active monitoring and efficient dissipation of heat during the testing of the device under test 5 by adding the heat dissipation structure 3014.

[0095] In one implementation of the present embodiment, the heat dissipation structure 3014 is a heat dissipation fin; as the core component of the heat dissipation structure 3014, the heat dissipation fin is a fin-shaped structure as a whole. The design inspiration of this fin-shaped structure comes from fluid mechanics and heat conduction theory. It significantly improves the heat transfer efficiency by maximizing the heat dissipation surface area in a limited space. Specifically, the geometric shape of the heat dissipation fins is presented as multiple groups of parallel thin-sheet protrusions, and the fins maintain a uniform and reasonable spacing between each fin, which not only avoids the air flow blockage caused by too small spacing, but also prevents the heat dissipation surface area utilization rate from being reduced due to too large spacing. At the same time, the parameters such as the thickness, height and arrangement density of the heat dissipation fins have been simulated and experimentally verified by computational fluid dynamics (CFD) to ensure that a stable and efficient heat dissipation flow field can be formed under specific wind speed or natural convection conditions.

[0096] In order to further improve the thermal radiation efficiency of the heat sink fins, a layer of heat dissipation coating with high emissivity is coated on its surface. The core advantage of the high emissivity heat dissipation coating is that it can significantly improve the radiation emissivity of the heat sink fins in the infrared band, so that the heat can be radiated directly to the surrounding space in the form of electromagnetic waves, thereby breaking through the limitation of relying solely on convection heat dissipation. Specifically, when the heat sink fins absorb heat from the device under test 5, their surface temperature rises and stimulates infrared radiation. The high emissivity coating can transfer this part of the thermal radiation energy to the external environment in a more efficient manner, especially in low wind speed or closed test environments. The effect of thermal radiation heat dissipation is more significant. In addition, the heat dissipation coating also has excellent high temperature resistance, antioxidant ability and chemical stability, and can maintain the integrity of the coating structure and the stability of thermal radiation performance under long-term high temperature test conditions.

[0097] In one implementation of this embodiment, in order to ensure that the lever pressing test device can achieve high-precision, low-deviation pressing action under complex test conditions, the lever pressing test device innovatively adds a key positioning component, a guide pin 7. The design of this component integrates the precision positioning theory and motion control technology in mechanical engineering, and through the synergy with the base 1, the cover 302 and other core components, a complete set of spatial positioning and motion guiding system is constructed, thereby effectively ensuring the relative position accuracy and motion trajectory consistency of each component during the test process.

[0098] The guide pin 7 is a core component for achieving spatial positioning and motion guidance in the lever pressing test device. Its material selection, manufacturing process and dimensional accuracy have all been strictly engineered and verified by experiments. Specifically, the guide pin 7 is made of high-strength, low thermal expansion coefficient alloy steel material, and its surface is precision ground, hard-plated and micro-structured polished to achieve micron-level control of key geometric parameters such as cylindricity, straightness and surface roughness. This high-precision manufacturing process ensures that the guide pin 7 can maintain a stable structural form and dimensional accuracy when subjected to axial loads and lateral friction, avoiding positioning deviations caused by deformation or wear.

[0099] The cover body 302 is the core component of the lever pressing assembly 3 that carries the pressing mechanism 301. The guide hole and the guide pin 7 arranged thereon constitute a set of precise sliding pair positioning system. The guide hole is processed by deep hole drilling and precision reaming technology. Its inner diameter and the outer diameter of the guide pin 7 form a clearance fit of 0.01mm to 0.02mm, which not only ensures the smooth sliding of the cover body 302 during the closing process, but also eliminates the risk of jamming caused by manufacturing tolerances or thermal deformation through a small gap. The axis of the guide hole completely coincides with the closing motion trajectory of the cover body 302, and the surface of the hole wall is hardened and covered with a lubricating coating to reduce sliding friction and improve wear resistance. In addition, a chamfered structure is provided at the entrance of the guide hole to facilitate the rapid introduction of the guide pin 7 in the initial contact stage, thereby reducing the impact force and positioning error during the alignment process.

[0100] When the lever pressing assembly 3 performs the covering action, the guide pin 7 implements precise spatial constraints and directional guidance on the movement trajectory of the cover body 302 through the sliding matching mechanism that penetrates the guide hole. Specifically, when the operator pushes the lever handle 303 to make the cover body 302 move toward the base 1, the guide pin 7 first contacts the chamfered structure at the entrance of the guide hole, and then gradually slides into the guide hole. In this process, the cylindrical surface of the guide pin 7 and the hole wall of the guide hole form a multi-point contact constraint, which limits the freedom of the cover body 302 to a single translational movement along the axis direction of the guide pin 7, thereby completely eliminating the positioning deviation caused by lateral offset, tilt or rotation. At the same time, the matching clearance design between the guide pin 7 and the guide hole fully considers the thermal expansion effect and vibration buffering requirements, and avoids the jamming phenomenon caused by temperature changes or mechanical vibrations while ensuring the positioning accuracy. When the cover 302 is completely covered on the base 1, the matching depth between the guide pin 7 and the guide hole reaches the designed value. At this time, the pressing mechanism 301 on the cover 302 and the device under test 5 on the base 1 form a precise axial alignment, providing a reliable geometric guarantee for the subsequent pressing test action.

[0101] In one implementation of this embodiment, the guide pin 7 includes a positioning section and a guide section;

[0102] Among them, the positioning section is firmly arranged on the base 1, and its main function is to precisely cooperate with the guiding hole, so as to realize the precise positioning of the cover body 302 during the assembly process, ensure the accurate relative position between the cover body and the base, and provide a reliable reference for subsequent operations.

[0103] The guiding section is designed as a conical structure and is closely connected to the positioning section. The diameter of this conical structure gradually decreases from the end close to the base 1 to the end far from the base 1. This unique structural design enables the guiding section to effectively play a guiding role during the process of the cover body 302 approaching the base 1. Even in the case of certain assembly errors or operation deviations, it can ensure that the guiding hole can be smoothly and accurately docked with the positioning section, thereby improving the assembly efficiency, reducing the assembly difficulty, and further ensuring the stability and reliability of the overall device.

[0104] In a specific implementation manner of this embodiment, an installation hole is provided on the mounting block 307. An anti-fooling component 308 is inserted into the installation hole, and this anti-fooling component 308 is composed of an anti-fooling pin and an anti-fooling spring. Among them, the anti-fooling spring is tightly sleeved on the anti-fooling pin, and the two work together to achieve the anti-fooling function.

[0105] During the operation, when the lever handle 303 drives the cam structure 304 to perform eccentric rotation, the lever handle 303 will contact the anti-fooling pin. At this time, the force applied by the lever handle 303 will overcome the elastic restoring force of the anti-fooling spring and push the anti-fooling pin out to the position where it abuts against the hook member 305. In this way, the anti-fooling pin can effectively limit the movement range of the hook member 305 and prevent it from accidentally loosening due to external forces or other accidental factors during the test, thereby ensuring the firm connection between the lever pressing component and the base, and further improving the stability and reliability of the test device.

[0106] In a specific implementation manner of this embodiment, an oil injection hole 309 is also specially provided on the mounting block 307. The design of this oil injection hole 309 has important functional significance, and its main purpose is to provide a channel for the injection of lubricating oil. By injecting lubricating oil into the oil injection hole 309, the lubricating oil can effectively penetrate between the key moving parts of the lever pressing component 3, thereby significantly reducing the friction between the parts during the operation.

[0107] This lubrication measure can not only reduce the resistance during operation, improve the smoothness and flexibility of operation, but also effectively reduce the heat and wear generated by friction, extend the service life of the lever pressing component, and ensure that the device always maintains good performance and stability during long-term use. Therefore, the setting of the oil injection hole 309 plays an important role in improving the operation efficiency and reliability of the entire test device.

[0108] In one implementation manner of this embodiment, when operating the lever handle 303 to rotate from the initial position to the pressing position, the formula for the force applied to the lever handle 303 is:

[0109] F1 = F2 * L2 / L1;

[0110] Wherein, F1 is the force applied to the lever handle 303, L1 is the distance from the end of the lever handle 303 to the center of the rotation axis of the cam structure 304 (as shown by L1 in Figure 9 ), F2 is the downward pressure applied by the cam structure 304 to the device under test 5, and L2 is the distance from the center of the rotation axis of the cam structure 304 to the protruding part where the cam structure 304 abuts against the cover body 302 (as shown by L2 in Figure 9 ).

[0111] This formula is based on the lever principle, that is, the principle of moment balance. In a lever system, the product of force and force arm is equal on both sides. Therefore, by adjusting the ratio of L1 and L2, a smaller force F1 can be used to apply a larger force F2, thereby achieving effective downward pressing of the device under test 5. This design makes the operation more labor-saving and improves the efficiency and comfort of the test process.

[0112] Although terms such as base and spring are used more frequently in this application, the possibility of using other terms is not excluded. The use of these terms is only to more conveniently describe and explain the essence of the present invention; interpreting them as any additional limitation is contrary to the spirit of the present invention.

[0113] A lever pressing test device provided by an embodiment of the present invention effectively solves many problems of manual pressing of traditional test devices by adopting the lever principle. First, by using the cooperation of the lever handle and the cam structure, the device under test can be stably pressed with a smaller operating force, significantly reducing the physical burden on the tester, reducing the risk of occupational strain caused by long-term repeated exertion, and improving work efficiency at the same time. Second, the matching hook design of the hook member and the buckle member on the base provides a stable fixing mechanism for the device, ensuring that it will not loosen during the test, thus guaranteeing the accuracy of the test results. In addition, the device has a simple structure and convenient operation, with high practicability and reliability, and can effectively improve the quality and efficiency of the electrical property test of electronic devices.

[0114] Finally, it should be noted that although the above embodiments have been described in the text and drawings of the specification of this application, the patent protection scope of this application cannot be limited thereby. Any technical solutions obtained by equivalent structure or equivalent process substitution or modification based on the substantial concept of this application and using the content recorded in the text and drawings of the specification of this application, as well as those directly or indirectly implementing the technical solutions of the above embodiments in other related technical fields, etc., are all included in the patent protection scope of this application.

Claims

1. A lever pressing test device, characterized in that, It includes a base (1), a probe module (2), and a lever pressing-down component (3); among them, The base (1) is provided with a groove (4) for placing the device under test (5); The probe module (2) is arranged in the groove (4) and is located below the device under test (5) for electrically connecting with the device under test (5) to test the device under test (5); The lever pressing-down component (3) is detachably covered on the base (1) and is used for pressing down the device under test (5) located in the groove (4) and placed on the probe module (2) by using the lever principle to cooperate with the probe module (2) for testing; The lever pressing-down component (3) includes a pressing-down mechanism (301), a cover body (302), a lever handle (303), a cam structure (304), and a hook member (305); One side of the cover body (302) facing the base (1) is provided with an installation cavity (306); one side of the cover body (302) away from the base (1) is provided with an installation block (307); The pressing-down mechanism (301) is arranged in the installation cavity (306) and can contact the device under test (5) when the lever pressing-down component (3) is covered on the base (1); The cam structure (304) is rotatably arranged on the installation block (307); The lever handle (303) is connected to the cam structure (304). By operating the lever handle (303) to rotate from the initial position to the pressing-down position, the cam structure (304) can be driven to eccentrically rotate, thereby pressing down the cover body (302) and the pressing-down mechanism (301) so that the pressing-down mechanism (301) applies a downward pressure to the device under test (5); The hook member (305) is arranged on the cover body (302) and is used for fitting and hooking with the buckle member (6) on the base (1) when the lever pressing-down component (3) is covered on the base (1) to firmly fix the lever pressing-down component (3) on the base (1).

2. The lever pressing test device according to claim 1, characterized in that The pressing-down mechanism (301) includes a first pressing plate (3011), a second pressing plate (3012), and a spring floating component (3013); The first pressing plate (3011) and the second pressing plate (3012) are sequentially arranged from top to bottom in the installation cavity (306); the second pressing plate (3012) can contact the device under test (5) when the lever pressing-down component (3) is covered on the base (1); The spring floating component (3013) is arranged between the first pressing plate (3011) and the second pressing plate (3012) and can provide elastic buffering when the pressing-down mechanism (301) applies a downward pressure to the device under test (5).

3. The lever pressing test device according to claim 2, wherein The spring floating component (3013) includes a plurality of springs and guide posts; The guide posts penetrate through the first pressing plate (3011) and the second pressing plate (3012) to ensure the smooth relative movement of the first pressing plate (3011) and the second pressing plate (3012) in the vertical direction; The spring is sleeved on the guiding column and is located between the first pressing plate (3011) and the second pressing plate (3012) for providing elastic buffering.

4. The lever pressing test device according to claim 2, wherein, The downward pressing mechanism (301) further includes a heat dissipation structure (3014); The heat dissipation structure (3014) passes through the first pressing plate (3011) and contacts the second pressing plate (3012) for conducting and dissipating the heat generated by the device under test (5) during the test in cooperation with the second pressing plate (3012) when the second pressing plate (3012) applies a downward pressure to the device under test (5).

5. The lever pressing test device according to claim 4, characterized in that, The heat dissipation structure (3014) is a heat dissipation fin; The heat dissipation fin has a fin-like structure and its surface is coated with a heat dissipation coating with a high emissivity.

6. The lever pressing test device according to claim 1, wherein It further includes a guiding pin (7); The guiding pin (7) is arranged on the base (1); The cover body (302) is provided with a guiding hole adapted to the guiding pin (7); The guiding pin (7) penetrates through the guiding hole for guiding the cover body (302) to accurately align with the base (1) along a predetermined direction when the lever pressing assembly (3) covers the base (1).

7. The lever pressing test device according to claim 6, wherein The guiding pin (7) includes a positioning section and a guiding section; The positioning section is arranged on the base (1) for cooperating with the guiding hole to realize the precise positioning of the cover body (302); The guiding section is a conical structure and is connected to the positioning section; the diameter of the guiding section gradually decreases from the direction close to the base (1) to the direction away from the base (1) for guiding the guiding hole to smoothly dock with the positioning section when the cover body (302) approaches the base (1).

8. The lever pressing test device according to claim 1, characterized in that, The mounting block (307) is provided with a mounting hole; An anti-fooling assembly (308) is inserted into the mounting hole; The anti-fooling assembly (308) includes an anti-fooling pin and an anti-fooling spring; The anti-fooling spring is sleeved on the anti-fooling pin; When operating the lever handle (303) to drive the eccentric rotation of the cam structure (304), the lever handle (303) contacts the anti-fooling pin and overcomes the elastic restoring force of the anti-fooling spring to push the anti-fooling pin to abut against the hook member (305) to prevent the accidental loosening of the hook member (305).

9. The lever pressing test device according to claim 8, wherein, The mounting block (307) is further provided with an oil injection hole (309); The oil injection hole (309) is used for injecting lubricating oil to reduce the friction force during the operation of the lever pressing assembly (3).

10. The lever pressing test device according to claim 1, wherein When operating the lever handle (303) to rotate from the initial position to the downward pressing position, the formula for the force applied to the lever handle (303) is: F1 = (F2 * L2) / L1; Wherein, F1 is the force applied to the lever handle (303), L1 is the distance from the end of the lever handle (303) to the center of the rotation shaft of the cam structure (304), F2 is the downward pressure applied by the cam structure (304) to the device under test (5), and L2 is the distance from the center of the rotation shaft of the cam structure (304) to the protruding part where the cam structure (304) abuts against the cover body (302).

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