Non-contact IC test seat clamp

Abstract

The embodiment of the utility model discloses a non-contact IC test seat clamp. The clamp comprises a base, a clamping piece and a clamping piece, wherein the base is internally provided with a connecting groove for placing a power supply module; the bottom of the turning cover is provided with a buckle, and the connecting groove can be opened or closed; the drawing rod is connected with the buckle and is used for realizing opening and closing of the flip cover by pulling the buckle; the shell is arranged on the turning cover; the pressing plate is arranged in the turning cover and can move up and down; comprising a driving part and a transmission part, and the driving part is arranged outside the shell and used for providing driving force for the transmission part; the transmission part is arranged in the shell, is in transmission connection with the driving part and is used for transmitting the driving force to the pressing plate so as to apply downward pressure to the pressing plate. According to the embodiment of the utility model, the power supply module can be directly replaced in high and low temperature environments through a non-contact operation mode, so that the test time can be remarkably shortened, the test efficiency can be improved, the damage to the power supply module can be reduced, and the failure rate in the replacement process of the power supply module can also be reduced.

Description

TECHNICAL FIELD

[0001] The embodiment of the utility model relates to integrated circuit test equipment technical field, in particular to a kind of non-contact IC test seat clamp. BACKGROUND

[0002] Chip test seat is also called IC Socket, IC test seat, IC socket, and is the static connector between PCB and IC, mainly used for integrated circuit application function verification. It makes the replacement test of chip more convenient, without repeatedly welding and taking down chip, thereby reducing the damage of IC and PCB, to achieve the effect of fast and efficient test.

[0003] In the prior art, when multiple power modules are subjected to high-low temperature test, the replacement of the power modules usually needs the following steps: first, stop the test, and wait for the equipment to warm up or cool down to normal temperature; then replace the power module; then wait for the equipment to rise or drop to the required temperature for test and keep warm; finally, perform high-low temperature test on the new power module. This scheme has the following defects:

[0004] High time cost: a lot of time is consumed for waiting for the temperature change of the equipment, reducing the test efficiency; high risk: frequent temperature change may cause damage to the module, and frequent replacement of the power module may also cause poor contact or failure; high labor cost: manual operation is required, increasing the labor cost.

[0005] When the module is directly replaced in a high-low temperature environment, directly touching the clamp can easily injure the worker, and wearing thick gloves is not convenient for operation. UTILITY MODEL CONTENT

[0006] The technical problem solved by the embodiment of the utility model is to provide a non-contact IC test seat clamp, which can at least solve one of the above defects.

[0007] To solve the above technical problems, one technical scheme of the utility model is to provide a non-contact IC test seat clamp, which comprises: a base internally provided with a connecting groove cover for placing a power module, a buckle provided at the bottom, the cover can open or close the connecting groove; a pull rod connected with the buckle, for opening and closing the cover by pulling the buckle; a shell provided on the cover; a pressing plate provided in the cover, the pressing plate can move up and down; a pre-tightening mechanism, the pre-tightening mechanism comprises a driving component and a transmission component, wherein the driving component is provided outside the shell, for providing driving force for the transmission component; the transmission component is provided inside the shell and is in transmission connection with the driving component, for transmitting the driving force to the pressing plate to apply downward pressure to the pressing plate.

[0008] In some embodiments, the driving component is a knob, the transmission component comprises a transmission shaft arranged inside the shell, the transmission shaft is provided with threads, and a belt is connected between the knob and the transmission shaft; wherein rotating the knob drives the transmission shaft to rotate downward through the threads to exert downward pressure on the pressing plate.

[0009] In some embodiments, the driving component is a fixedly arranged ratchet, the transmission component comprises a spring arranged inside the shell, a pressing plate fixed in the spring, and a belt connected with the pressing plate, the belt passes through the base hole and the shell side hole in sequence and is wound on the ratchet; wherein the ratchet is fixed, the belt is stretched to drive the spring to compress, and downward pressure is exerted on the pressing plate.

[0010] In some embodiments, the non-contact IC test seat clamp further comprises an unlocking mechanism for releasing the pre-tightening state, the unlocking mechanism comprises a ratchet buckle arranged on the ratchet, a ratchet spring arranged in the ratchet, and a ratchet pull rod connected with the ratchet spring; wherein pulling the ratchet pull rod can make the ratchet spring compress to drive the ratchet buckle to make the ratchet rotate to release the pre-tightening state.

[0011] In some embodiments, the inside of the shell is provided with an internal thread matched with the threads of the transmission shaft.

[0012] In some embodiments, the axial direction of the transmission shaft is parallel to the movement direction of the pressing plate.

[0013] In some embodiments, the pressing plate is fixed in the flip cover by clamping.

[0014] In some embodiments, the base hole is arranged on the pressing plate, and the shell side hole is arranged on the side wall of the shell.

[0015] In some embodiments, the flip cover is connected with the shell by hinging.

[0016] In some embodiments, the knob is arranged on the outer side wall of the shell.

[0017] The beneficial effects of the embodiments of the utility model are as follows: different from the prior art, the embodiments of the utility model can directly replace the power module in the high and low temperature environment through the non-contact operation mode, without waiting for the temperature change of the equipment, significantly shortening the test time, thereby improving the test efficiency, reducing the risk of injury caused by the direct contact of the workers with the clamp in the high and low temperature box, avoiding frequent temperature changes, reducing the damage to the power module, and also reducing the failure rate in the replacement process of the power module. In addition, mechanical operation is adopted to reduce manual intervention and reduce labor costs. Attached Figure Description

[0018] Figure 1 This is a structural schematic diagram of a non-contact IC test fixture provided by an embodiment of the present invention;

[0019] Figure 2 This is an exploded view of a non-contact IC test fixture provided by an embodiment of this utility model;

[0020] Figure 3 This is a schematic diagram of another non-contact IC test fixture provided by this utility model embodiment;

[0021] Figure 4 This is an exploded view of another non-contact IC test fixture provided by this utility model embodiment.

[0022] Figure 5 This is a detailed view of the ratchet in another non-contact IC test fixture provided by this utility model embodiment. Detailed Implementation

[0023] To facilitate understanding of this utility model, a more detailed description is provided below with reference to the accompanying drawings and specific embodiments. It should be noted that when an element is described as being "fixed to" another element, it can be directly on the other element, or one or more intermediate elements may exist between them. When an element is described as being "connected" to another element, it can be directly connected to the other element, or one or more intermediate elements may exist between them. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this specification are for illustrative purposes only.

[0024] In this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicating orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0025] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation" and "connection" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0026] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in the description of the application herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. All publications, patent applications, patents, and other references mentioned herein are incorporated by reference in their entirety.

[0027] As shown in Figure 1 and Figure 2 The embodiment provides a non-contact IC test seat clamp, which mainly comprises a base 100, a shell 300, a flip cover 210, a pull rod 220, a pressing plate 230 and a pre-tightening mechanism, and the parts are tightly matched to realize the non-contact operation function of the IC test seat. In the embodiment, the pre-tightening mechanism comprises a knob 410 and a transmission shaft 420.

[0028] Firstly, the base 100 serves as a basic support component of the whole clamp, and a connecting groove for placing a power module is arranged in the base 100. The size and shape of the connecting groove are matched with the power module to be tested, so that the power module can be stably placed and displacement is avoided during the test.

[0029] Secondly, an openable flip cover 210 is arranged above the base 100, and a buckle structure is arranged at the bottom of the flip cover 210. The flip cover 210 is connected with the shell 300 in a hinged manner, specifically: hinge lugs are arranged on both sides of the flip cover 210 and are matched with corresponding hinge seats on the shell 300; the position of the hinge axis is specially designed to ensure that the flip cover 210 can maintain a certain included angle when being fully opened, which is convenient for an operator to place and take out the power module and can prevent over-opening; a proper gap is designed at the hinge position to allow thermal expansion when the temperature changes, and the stability during opening and closing is ensured.

[0030] In order to realize non-contact operation, the embodiment designs a pull rod 220 connected with the buckle. One end of the pull rod 220 is reliably connected with the buckle, and the other end extends to the outside of the shell 300. When an operator needs to open or close the flip cover 210, the operator only needs to pull the end part of the pull rod 220 located outside, without directly contacting the clamp body in a high or low temperature environment.

[0031] Specifically, the connection between the pull rod 220 and the buckle adopts a special linkage structure: the buckle adopts an elastic hook structure and is reliably locked with the base 100 in a normal state; the pull rod 220 and the buckle are connected by a pin shaft to ensure that the force transmission direction is always along the axial direction of the pull rod; when the pull rod 220 is pulled, the linear motion is converted into a rotation unlocking action of the buckle through a connecting rod mechanism; the connecting mechanism is designed with a guide structure to prevent the pull rod 220 from deflecting during operation.

[0032] A pressing plate 230 is also arranged in the flip cover 210, which is fixed in the flip cover 210 through a carefully designed clamping structure and can move up and down in the vertical direction. The material and size of the pressing plate 230 are optimized and designed to ensure that it has sufficient strength to exert pressure and will not cause damage to the power module to be tested.

[0033] One of the core innovations of the embodiment is the design of the pre-tightening mechanism, which adopts a scheme driven by a knob 410 and mainly includes two parts.

[0034] The knob 410 as a driving component is arranged on the outer wall of the shell 300, which is convenient for an operator to control;

[0035] The transmission shaft 420 as a transmission component is arranged inside the shell 300, and the surface thereof is processed with a precision thread. The knob 410 and the transmission shaft 420 are connected through a belt transmission, which not only has stable transmission but also is convenient for maintenance and replacement.

[0036] The shell 300 is also specially designed with an internal thread matched with the thread of the transmission shaft 420, and the pitches and directions of the threads are accurately matched to ensure the stability during rotation. In particular, the axial direction of the transmission shaft 420 is strictly parallel to the movement direction of the pressing plate 230, which ensures that the pre-tightening force can be uniformly and accurately transmitted to the pressing plate 230.

[0037] The bottom surface of the pressing plate 230 is specially treated to ensure that the contact area with the power module is maximized; the thickness distribution of the pressing plate 230 is optimized to avoid deformation during pressure exertion; and the clamping structure between the pressing plate 230 and the flip cover 210 allows certain self-adaptive adjustment to ensure uniform distribution of pressure.

[0038] During work, the operator only needs to rotate the knob 410 located outside the shell 300, and the rotation of the knob 410 drives the transmission shaft 420 to rotate through the belt. Due to the thread cooperation between the transmission shaft 420 and the inner wall of the shell 300, the transmission shaft 420 will descend with rotation and then push the pressing plate 230 to move downward, finally exerting stable pre-tightening force on the power module. This pre-tightening method is not only simple to operate but also can accurately control the pressure through the rotation angle of the knob 410.

[0039] The knob 410 drives the transmission shaft 420 to rotate through the belt, realizing the transmission of torque; the thread on the transmission shaft 420 cooperates with the internal thread of the inner wall of the shell 300 to convert the rotary motion into axial motion; the axial motion of the transmission shaft 420 directly acts on the pressing plate 230 to ensure that the pressure is uniformly exerted in the vertical direction; and the clearances and cooperation in the whole transmission chain are optimized to ensure not only the flexibility of movement but also the stability of pressure transmission.

[0040] Distinguishing from the prior art, the utility model embodiment opens and closes the cover through the pull rod, and controls the transmission shaft in the shell by means of the knob, and then provides pressure to the pressing plate to fix the power module, does not need to wait for the temperature change of equipment to replace the power module, significantly shortens the test time, thereby improves test efficiency, reduces the risk of injury of staff directly contacting the clamp in the high-low temperature box, avoids frequent temperature change, reduces the damage to the power module, and also can reduce the failure rate in the replacement process of the power module. In addition, mechanical operation is adopted, manual intervention is reduced, and labor cost is reduced.

[0041] Further, the application embodiment provides another non-contact IC test seat clamp, as shown in Figure 3 and Figure 4 The embodiment innovatively improves the pre-tightening mechanism while keeping the basic structure of the base 100, the cover 210 and the pull rod in embodiment 1, and adopts a pre-tightening scheme of the pressure plate 430 based on the ratchet 450 and the spring 440.

[0042] In the embodiment, the driving part of the pre-tightening mechanism is a fixedly arranged ratchet 450, which is carefully designed to ensure convenient operation and not to affect the normal work of other parts. The transmission part includes three key elements: the spring 440 arranged in the shell 300, the pressure plate 430 fixed in the spring 440, and the belt connecting the pressure plate 430 and the ratchet 450.

[0043] Among them, the selection of the spring 440 is particularly critical, and its elastic coefficient needs to match the expected pre-tightening force. The pressure plate 430 is fixed in the middle of the spring 440 and plays a role in force transmission and dispersion. The arrangement of the belt is also very clever. It needs to pass through the small hole on the side wall of the base 100 and the side hole on the side wall of the shell 300 in turn, and finally wrap around the ratchet 450. This arrangement seems complex, but it is carefully calculated to ensure the optimization of the transmission path.

[0044] In order to facilitate operation and control, the embodiment also specially designs an unlocking mechanism, as shown in Figure 5 The mechanism mainly consists of three parts: the ratchet buckle 453 and the ratchet spring 454 arranged on the ratchet 450, and the ratchet pull rod 452 connected with the ratchet spring 454. The ratchet pull rod 452 also extends to the outside of the shell 300, which is convenient for the operator to control.

[0045] The working process can be divided into two stages: pre-tightening and unlocking.

[0046] When pre-tightening, the fixed ratchet wheel 450 is stretched to tighten the belt, and the tension of the belt is transmitted to the spring 440 through the pressure plate 430, so that the spring 440 is compressed, thereby exerting downward pressure on the pressure plate 230. The ratchet structure of the ratchet wheel 450 can ensure self-locking in the pre-tightening state, without the need for continuous external force.

[0047] The ratchet wheel 450 and the pawl constitute a one-way transmission mechanism, which can prevent accidental release of the pre-tightening force; the arrangement of the belt around the base hole and the shell side hole ensures that the force transmission path is the shortest and most stable; the compression deformation of the spring 440 provides a continuous and stable pre-tightening force, which compensates for the size changes caused by temperature changes.

[0048] When unlocking, only the ratchet lever 452 extending to the outside of the shell 300 needs to be pulled, the ratchet spring 453 is compressed by the ratchet buckle 452, the ratchet buckle 454 is driven to make the ratchet wheel 450 rotate, and the locking state of the ratchet wheel 450 is released. Under the action of the springback force of the spring 440, the entire mechanism will automatically return to the initial position.

[0049] Unlike the prior art, the utility model embodiment opens and closes the flip cover through the pull rod, and the pressure plate in the shell is controlled by means of the ratchet wheel, so that the spring in the shell is compressed, thereby providing pressure to the pressure plate to fix the power module. Without waiting for the temperature change of the equipment to replace the power module, the test time is significantly shortened, thereby improving the test efficiency, reducing the risk of injury caused by the direct contact of the workers with the clamp in the high and low temperature box, avoiding frequent temperature changes, reducing damage to the power module, and also reducing the failure rate during the replacement process of the power module. In addition, mechanical operation is adopted, manual intervention is reduced, and labor cost is reduced.

[0050] It should be noted that the specification and drawings of the utility model give a preferred embodiment of the utility model, but the utility model can be realized in many different forms, and is not limited to the embodiments described in the specification. These embodiments are not additional limitations on the content of the utility model, and the purpose of providing these embodiments is to make the disclosure of the utility model more thorough and comprehensive. Furthermore, the above technical features continue to combine to form various embodiments not listed above, which are considered to be within the scope of the utility model specification; further, those skilled in the art can improve or change according to the above description, and all these improvements and changes should be within the protection scope of the claims of the utility model.

Claims

1. A non-contact IC test socket fixture, characterized by, The utility model relates to a power module, comprising: a base internally provided with a connecting slot for placing a power module; a flip cover provided at the bottom with a buckle, the flip cover being capable of opening or closing the connecting slot; a pull rod connected with the buckle, for opening or closing the flip cover by pulling the buckle; a shell arranged on the flip cover; a pressing plate arranged in the flip cover, the pressing plate being capable of moving up and down; a pre-tightening mechanism, the pre-tightening mechanism comprising a driving component and a transmission component, wherein the driving component is arranged outside the shell for providing a driving force for the transmission component; the transmission component is arranged inside the shell and in transmission connection with the driving component for transmitting the driving force to the pressing plate to exert a downward pressure on the pressing plate.

2. The non-contact IC test socket fixture of claim 1, wherein, the driving component is a knob, the transmission component comprising: a transmission shaft arranged inside the shell, the transmission shaft being provided with a thread; and a belt connecting the knob and the transmission shaft; wherein, turning the knob drives the transmission shaft to rotate downward through the thread to exert a downward pressure on the pressing plate.

3. The non-contact IC test socket fixture of claim 1, wherein, the driving component is a fixedly arranged ratchet, the transmission component comprising: a spring arranged inside the shell; a pressure plate fixed in the spring; and a belt connected with the pressure plate, the belt being wound on the ratchet after passing through a base hole and a shell side hole in sequence; wherein, fixing the ratchet, stretching the belt drives the spring to compress, and a downward pressure is exerted on the pressure plate.

4. The non-contact IC test socket fixture of claim 3, wherein, further comprising: an unlocking mechanism for releasing the pre-tightening state, the unlocking mechanism comprising: a ratchet buckle arranged on the ratchet; a ratchet spring arranged in the ratchet; and a ratchet pull rod connected with the ratchet spring; wherein, pulling the ratchet pull rod can make the ratchet spring compress, drive the ratchet buckle, and make the ratchet rotate to release the pre-tightening state.

5. The non-contact IC test socket fixture of claim 2, wherein, the shell is internally provided with an internal thread in thread cooperation with the transmission shaft.

6. The non-contact IC test socket fixture of claim 2, wherein, the axial direction of the transmission shaft is parallel to the movement direction of the pressing plate.

7. The non-contact IC test socket fixture of claim 1, wherein, the pressing plate is fixed in the flip cover by clamping.

8. The non-contact IC test socket fixture of claim 3, wherein, the base hole is arranged on the pressing plate, and the shell side hole is arranged on the side wall of the shell.

9. The non-contact IC test socket fixture of claim 1, wherein, the flip cover is connected with the shell by hinging.

10. The non-contact IC test socket fixture of claim 2, wherein, the knob is arranged on the outer side wall of the shell.

Images