CN218514725U - Test fixture and test equipment - Google Patents
Test fixture and test equipment Download PDFInfo
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- CN218514725U CN218514725U CN202222133763.6U CN202222133763U CN218514725U CN 218514725 U CN218514725 U CN 218514725U CN 202222133763 U CN202222133763 U CN 202222133763U CN 218514725 U CN218514725 U CN 218514725U
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- 238000012360 testing method Methods 0.000 title claims abstract description 122
- 238000010438 heat treatment Methods 0.000 claims abstract description 31
- 239000000523 sample Substances 0.000 claims abstract description 19
- 230000017525 heat dissipation Effects 0.000 claims description 58
- 230000003139 buffering effect Effects 0.000 claims description 7
- 230000000903 blocking effect Effects 0.000 claims description 5
- 210000001503 joint Anatomy 0.000 claims description 4
- 238000007405 data analysis Methods 0.000 claims description 3
- 238000009434 installation Methods 0.000 description 12
- 238000001816 cooling Methods 0.000 description 9
- 238000004891 communication Methods 0.000 description 7
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/28—Testing of electronic circuits, e.g. by signal tracer
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L43/00—Arrangements for monitoring or testing data switching networks
- H04L43/50—Testing arrangements
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
Abstract
The utility model provides a test fixture and test equipment, test fixture includes the anchor clamps subassembly, drive assembly and radiator unit, the anchor clamps subassembly is including the apron, faller and support plate, the support plate is used for bearing the product that awaits measuring, and be equipped with the through-hole on the support plate and wear the groove, the apron is used for the lid to fit on the product that awaits measuring that the support plate bore, the faller is located the support plate below, and the faller is equipped with the probe, drive assembly connects in the faller, drive assembly is used for driving the faller to reciprocate, the faller moves the test point contact that the probe passed through the through-hole and the product that awaits measuring when shifting up, in order to dispel the heat to heating element, promote test fixture's heat-sinking capability, thereby promote the life of the product that awaits measuring, and then satisfy the demand that the product that awaits measuring relapses repetitious use.
Description
Technical Field
The utility model relates to a product detection technical field especially relates to a test fixture and test equipment.
Background
In order to ensure the quality and the excellent rate of communication products, the communication products need to be tested, the signal receiving performance, the signal sending performance and the radiation degree of the communication products are detected, and the outgoing communication products are ensured to meet various communication standards.
The test fixture is a device for connecting the test system with a product to be tested and is also a necessary device for realizing the test, plays an irreplaceable role in the test system, and directly influences the accuracy, comprehensiveness and safety of the test.
The product to be tested has high requirement on heat dissipation in the upper power test, and the existing test fixture has insufficient heat dissipation capability and cannot meet the requirement of repeated use of the product to be tested.
SUMMERY OF THE UTILITY MODEL
The utility model discloses a main aim at provides a test fixture and test equipment can promote test fixture's heat-sinking capability to promote the life of the product that awaits measuring, and then satisfy the demand that the product that awaits measuring relapses repetitious usage.
In a first aspect, the present invention provides a test fixture, including:
the fixture assembly comprises a cover plate, a needle plate and a support plate, wherein the support plate is used for bearing a product to be tested, a through hole and a through groove are formed in the support plate, the cover plate is used for covering the product to be tested borne by the support plate, the needle plate is located below the support plate, and the needle plate is provided with a probe;
the driving component is connected to the needle plate and used for driving the needle plate to move up and down, and when the needle plate moves up, the needle plate drives the probe to penetrate through the through hole to be in contact with a test point of the product to be tested so as to collect a test signal;
and the heat dissipation assembly is connected with the needle plate, and when the needle plate moves upwards, the heat dissipation assembly is driven to penetrate through the through groove to be in contact with the heating element of the product to be detected so as to dissipate heat of the heating element.
In a second aspect, the present invention further provides a testing apparatus, including testing device and the above-mentioned test fixture, the probe is used for contacting with the test point of the product to be tested to collect the test signal and feed back to the testing device, the testing device is used for accepting the test signal and performing data analysis.
The utility model discloses a test fixture and test equipment, test fixture's radiator unit connects in the faller, can with faller synchronous motion, can drive the collection that the faller shifts up in order to realize test signal through drive assembly, the radiator unit that can also drive floating design simultaneously removes to the heating element contact of passing trough and the product that awaits measuring, dispel the heat to heating element, promote test fixture's heat-sinking capability, thereby promote the life of the product that awaits measuring, and then satisfy the demand that the product that awaits measuring relapses repetitious usage.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
Fig. 1 is a schematic structural diagram of the test fixture according to the embodiment of the present invention, in which the first casing rotates counterclockwise by 70 °.
Fig. 2 is a partially enlarged schematic view of a portion a in fig. 1.
Fig. 3 is a schematic structural diagram of the test fixture according to the embodiment of the present invention, in which the second casing rotates 45 ° counterclockwise.
Fig. 4 is a schematic view of a first view structure of a test fixture according to an embodiment of the present invention.
Fig. 5 is a schematic view of a second view structure of the testing fixture according to an embodiment of the present invention.
Fig. 6 is a partially enlarged view of fig. 5 at B.
Fig. 7 is a schematic cross-sectional view of the driving assembly provided by the embodiment of the present invention when the driving assembly does not drive the needle plate to move upward.
Fig. 8 is a schematic cross-sectional view illustrating a first cross-sectional view of a carrier plate to be tested when a cover plate and a needle plate are attached to the carrier plate.
Fig. 9 is a schematic cross-sectional view of a second embodiment of the present invention, which is used when a to-be-tested product on a support plate is attached to a cover plate and a needle plate.
Fig. 10 is a partially enlarged schematic view at C in fig. 9.
Fig. 11 is a schematic structural diagram of the probe on the needle plate inserted into the through hole on the carrier plate according to an embodiment of the present invention.
In the figure: 100. testing the clamp; 10. a clamp assembly; 11. a cover plate; 111. a first avoidance slot; 12. a needle plate; 121. a probe; 122. an elastic structure; 1221. a guide post; 1222. a first elastic member; 1223. a blocking portion; 13. a carrier plate; 131. a through hole; 132. penetrating a groove; 133. a second avoidance slot; 14. a first shielding cavity; 15. a second shielded cavity; 16. a top plate; 20. a drive assembly; 21. a drive member; 22. pushing the plate; 30. a heat dissipating component; 31. an installation part; 32. a heat conducting portion; 33. a heat dissipating section; 331. a first end; 332. a second end; 333. a heat sink; 34. a first heat dissipation fan; 40. a second heat dissipation fan; 50. a second elastic member; 60. a first housing; 70. a second housing; 71. a base plate; 80. a first locking structure; 81. a first snap structure; 811. hooking; 812. a handle; 82. a second snap structure; 821. a card holder; 822. hooking and pinning; 90. a positioning structure; 91. positioning a block; 911. positioning the notch; 92. a positioning column; 110. a base; 1101. a button; 120. a first gas spring; 130. a second gas spring; 140. a handle; 200. a product to be tested; 201. a heat generating element.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, not all, of the embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
It is to be understood that the terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used in the specification and the appended claims, the singular forms "a", "an", and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise.
It should also be understood that the term "and/or" as used in the specification and the appended claims refers to any and all possible combinations of one or more of the associated listed items and includes such combinations.
It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Some embodiments of the present invention will be described in detail below with reference to the accompanying drawings. The embodiments and features of the embodiments described below can be combined with each other without conflict.
As shown in fig. 1 to 11, an embodiment of the present invention provides a test fixture 100, including a fixture assembly 10, a driving assembly 20 and a heat dissipation assembly 30, the fixture assembly 10 includes a cover plate 11, a pin plate 12 and a support plate 13, the support plate 13 is used for bearing a product 200 to be tested, and the support plate 13 is provided with a through hole 131 and a through groove 132, the cover plate 11 is used for covering the product 200 to be tested borne by the support plate 13, the pin plate 12 is located below the support plate 13, and the pin plate 12 is provided with a probe 121, the driving assembly 20 is connected to the pin plate 12, the driving assembly 20 is used for driving the pin plate 12 to move up and down, the pin plate 12 drives the probe 121 to pass through the through hole 131 and contact with a test point of the product 200 to be tested when moving up, so as to collect a test signal, the heat dissipation assembly 30 is connected to the pin plate 12, and the pin plate 12 drives the heat dissipation assembly 30 to pass through the through groove 132 and contact with a heating element 201 of the product 200 to be tested when moving up, so as to dissipate heat for the heating element 201.
The embodiment of the utility model provides an in, radiator unit 30 is connected in faller 12, can with faller 12 synchronous motion, can drive faller 12 through drive assembly 20 and move up in order to realize test signal's collection, radiator unit 30 that can also drive floating design simultaneously moves to the heating element 201 contact of passing trough 132 and the product 200 that awaits measuring, dispel the heat to heating element 201, promote test fixture 100's heat-sinking capability, thereby promote the life of the product 200 that awaits measuring, and then satisfy the demand that the product 200 that awaits measuring used many times repeatedly.
Exemplarily, the product 200 to be tested is a PCBA (Printed Circuit Board), which is hereinafter referred to as a single Board for short, the heating element 201 is a high power consumption chip disposed on the single Board, and the heat dissipation component 30 designed in a floating manner can be directly attached to the high power consumption chip to dissipate heat therefrom, so that the heat dissipation effect is good.
In some embodiments, as shown in fig. 7 to 9 and 11, the heat dissipation assembly 30 includes an installation portion 31, a heat conduction portion 32 and a heat dissipation portion 33, the installation portion 31 is installed at the bottom of the pin plate 12, the heat conduction portion 32 is disposed above the installation portion 31 and penetrates through the pin plate 12, the heat dissipation portion 33 is disposed below the installation portion 31, and when the pin plate 12 moves up, the heat conduction portion 32 is driven to penetrate through the penetrating groove 132 to contact with the heating element 201 of the product 200 to be tested, so that the heat conduction portion 32 conducts the heat generated by the heating element 201 to the heat dissipation portion 33, and the heat is dissipated through the heat dissipation portion 33. The embodiment of the utility model provides an in, installation department 31 is used for radiator unit 30's installation, and heat conduction portion 32 is used for contacting the heat transfer in order to realize the test procedure with heating element 201 to through radiating part 33 with the heat effluvium, with the heat dissipation demand that satisfies the core large-power consumption chip.
In some embodiments, as shown in fig. 9 and 10, the elastic structure 122 is disposed at the bottom of the needle board 12, the mounting portion 31 is connected to the elastic structure 122, and the heat conducting portion 32 is abutted with the heating element 201 to drive the elastic structure 122 to compress, so that the heat conducting portion 32 is in buffering contact with the heating element 201. The embodiment of the utility model provides an in, through the setting of elastic construction 122 to heat conduction portion 32 can cushion the contact with heating element 201 when making heat radiation structure and heating element 201's butt joint, prevents the impact force to heating element 201's damage, and can guarantee that heat conduction portion 32 surface and heating element 201 are fully laminated, with the heat transfer that realizes the test process, in order to satisfy the heat dissipation demand of the chip that generates heat.
In some embodiments, as shown in fig. 10, the elastic structure 122 includes a guiding column 1221 and a first elastic member 1222, the guiding column 1221 is connected to the bottom of the needle board 12 and extends downward along a vertical direction, a stopping portion 1223 is disposed on the guiding column 1221, the mounting portion 31 is sleeved on the guiding column 1221 and movably disposed between the stopping portion 1223 and the bottom surface of the needle board 12, the first elastic member 1222 is sleeved on the guiding column 1221, one end of the first elastic member 1222 abuts against the mounting portion 31, the other end of the first elastic member 1222 abuts against the stopping portion 1223, and the mounting portion 31 drives the first elastic member 1222 to compress when the heat conducting portion 32 abuts against the heat generating element 201, so that the heat conducting portion 32 is in buffer contact with the heat generating element 201. In the embodiment of the present invention, connect installation department 31 activity in the guide post 1221 of faller 12 bottom, the one end of first elastic component 1222 acts on the bottom surface of installation department 31, the other end acts on the stop part 1223 of guide post 1221 lower extreme, faller 12 moves up the in-process and drives guide post 1221 and move up in step, it shifts up to drive installation department 31 and locate the heat conduction portion 32 above installation department 31 simultaneously, when heat conduction portion 32 and heating element 201 contact, can produce the effort and order about first elastic component 1222 elastic compression, so that heat conduction portion 32 and heating element 201 buffer contact, prevent the damage of impact force to heating element 201.
For example, the first elastic member 1222 may be a spring, the guide post 1221 may be a screw or a rivet, and a head of the screw or the rivet forms the blocking portion 1223.
In some embodiments, as shown in fig. 9, the heat dissipating part 33 includes a first end 331 connected to the mounting part 31 and a second end 332 opposite to the first end 331, and the second end 332 is provided with a plurality of heat dissipating fins 333. In the embodiment of the present invention, the heat dissipation effect is improved by the plurality of fins 333 of the second end 332.
In some embodiments, as shown in fig. 7 to 9, the heat dissipation assembly 30 further includes a first heat dissipation fan 34, and the first heat dissipation fan 34 is disposed below the heat dissipation portion 33. In the embodiment of the present invention, the first heat dissipation fan 34 is disposed below the second end 332, and the heat dissipation effect of the heat dissipation assembly 30 can be better achieved by the first heat dissipation fan 34.
In some embodiments, as shown in fig. 1 and fig. 3 to fig. 5, a heat dissipation space is formed below the heat dissipation assembly 30, and the test fixture 100 further includes a second heat dissipation fan 40, where the second heat dissipation fan 40 is communicated with the heat dissipation space to blow hot air in the heat dissipation space to the outside of the test fixture 100 to meet the heat dissipation requirement.
In some embodiments, the needle board 12 is removably mounted to the drive assembly 20. The embodiment of the utility model provides an in, through the setting of dismantling of faller 12, can be according to the faller 12 of the veneer in order to change the matching of difference, because the communication product is updated and is frequently updated, series frequency channel PCBA is structurally similar, and is close on the means of testing, consequently can be through changing faller 12 to carry out the test of different veneers, need not to change whole test fixture 100, shorten the test time of batch product, reduce cost.
In some embodiments, heat spreading assembly 30 is removably mounted to pin plate 12. The embodiment of the utility model provides an in, can dismantle the setting with radiator unit 30, can be convenient for installation dismantlement and later stage maintenance. Moreover, after different needle plates 12 are replaced, the heat dissipation assembly 30 can be detached and installed on the replaced needle plates 12, so that repeated use is realized, and the cost is saved.
In some embodiments, as shown in fig. 3 and 7-9, the driving assembly 20 includes a driving member 21 and a push plate 22, the driving member 21 is connected to the push plate 22, the push plate 22 is connected to the needle plate 12, and the driving member 21 is used for driving the push plate 22 to move up and down to realize the up and down movement of the needle plate 12. The embodiment of the utility model provides an in, driving piece 21 can adopt the cylinder, and the cylinder promotes push pedal 22 after starting and moves up to drive faller 12 and move up, thereby drive probe 121 on the faller 12 and pass through-hole 131 and the test point contact of the product 200 that awaits measuring, in order to gather test signal.
In some embodiments, as shown in fig. 7 and 8, a second elastic member 50 is disposed between the needle plate 12 and the carrier plate 13, and when the needle plate 12 moves upward, the carrier plate 13 is driven by the second elastic member 50 to move upward, so that the product 200 to be tested on the carrier plate 13 is attached to the cover plate 11 in a buffering manner. The embodiment of the utility model provides an in, when drive assembly 20 drive faller 12 shifts up, it rises to drive support plate 13 unsteady buffering formula, so that veneer on the support plate 13 and apron 11 buffering formula butt joint, order about the elastic compression of second elastic component 50 between faller 12 and the support plate 13 simultaneously, so that the laminating of buffering formula between faller 12 and the support plate 13, impact stress when effectively reducing test fixture 100 and closing, make the test point buffering contact of probe 121 and the product 200 that awaits measuring simultaneously, prevent the damage of impact force to the test point.
In some embodiments, as shown in fig. 7 and fig. 8, the cover plate 11 is provided with a first avoiding groove 111 for avoiding a functional device on a first side surface of the product 200 to be tested, when the cover plate 11 covers the product 200 to be tested, the product 200 to be tested is covered in the first avoiding groove 111 to form a first shielding cavity 14 required for testing, and the first side surface is a surface of the product 200 to be tested, which is opposite to the cover plate 11 when the product 200 to be tested is placed on the carrier plate 13. Illustratively, the first side is a TOP side of the single board, and the first shielding cavity 14 is arranged to meet the testing shielding requirement of the TOP side of the single board.
In some embodiments, as shown in fig. 7, fig. 8 and fig. 11, the carrier 13 is provided with a second avoiding groove 133 for avoiding a functional device on a second side surface of the product 200 to be tested, the second avoiding groove 133 is covered by the product 200 to be tested when the product 200 to be tested is placed on the carrier 13 to form a second shielding cavity 15 required for testing, and the second side surface is a surface of the product 200 to be tested that is opposite to the carrier 13 when the product 200 to be tested is placed on the carrier 13. Illustratively, the functional device on the second side surface includes the above-mentioned heating element 201, and the second side surface is a BOT surface of a single board, and the test shielding requirement of the BOT surface of the single board is met by the arrangement of the second shielding cavity 15.
In some embodiments, as shown in fig. 1, the fixture assembly 10 further includes a TOP plate 16, the TOP plate 16 is connected to a side of the cover plate 11 opposite to the carrier plate 13, the TOP plate 16 is provided with power probes, test probes, and the like, and when the cover plate 11 is covered on the carrier plate 13, the probes on the TOP plate 16 pass through the cover plate 11 and automatically interface with the test points on the TOP surface of the board for testing.
In some embodiments, as shown in fig. 1 to 5, the test fixture 100 further includes a first housing 60, a second housing 70, and a first locking structure 80, the cover plate 11 is mounted on the first housing 60, the second housing 70 is rotatably connected to the first housing 60, the carrier plate 13 is mounted on the second housing 70, the first housing 60 is rotated to cover the second housing 70, so that the cover plate 11 covers the product 200 to be tested carried by the carrier plate 13, the first locking structure 80 is mounted on the first housing 60 and/or the second housing 70, and the first locking structure 80 is used for locking the first housing 60 when the first housing 60 covers the second housing 70, so as to limit the rotation of the first housing 60. In the embodiment of the present invention, a hinge or other hinge structure may be disposed between the first casing 60 and the second casing 70 to realize the rotational connection between the first casing 60 and the second casing 70, and the first casing 60, the second casing 70 and the first locking structure 80 are disposed so as to realize the opening and closing of the test fixture 100.
For example, as shown in fig. 1 to 5, the second heat dissipation fan 40 may be mounted to the second housing 70. Wherein, the heat dissipation space is located in the second casing 70, the second cooling fan 40 is provided with two sets, each set includes one or more second cooling fan 40, wherein a set of second cooling fan 40 is located on the left side of the second casing 70, another set of second cooling fan 40 is located on the right side of the second casing 70, the setting of the second cooling fan 40 through both sides can be more rapid to blow the hot air in the heat dissipation space to the outside of the test fixture 100 so as to satisfy the heat dissipation requirement.
For example, as shown in fig. 3 and 7 to 9, a bottom plate 71 is disposed at the bottom of the second housing 70, and the driving assembly 20 may be mounted on the bottom plate 71 of the second housing 70. Wherein the test fixture 100 may be provided with one or more drive assemblies 20, the arrangement of a plurality of drive assemblies 20 being such as to provide sufficient drive force to drive the needle board 12 upwards.
In some embodiments, as shown in fig. 4 and 6, the first locking structure 80 includes a first snap structure 81 and a second snap structure 82, the first snap structure 81 is rotatably connected to the first housing 60, the second snap structure 82 is mounted on the second housing 70, and the first snap structure 81 is clamped on the second snap structure 82 or separated from the second snap structure 82 by rotating the first snap structure 81, so as to lock or unlock the first housing 60. In the embodiment of the present invention, the first buckle structure 81 is rotatably disposed so as to lock and unlock the first housing 60. Convenient operation can realize that first buckle structure 81 and second buckle structure 82's joint is locked soon.
Illustratively, as shown in fig. 1, fig. 4 and fig. 6, the first snap structure 81 includes a hook 811 rotatably connected to the first housing 60 and a handle 812 connected to the hook 811, the second snap structure 82 includes a socket 821 for the hook 811 to be inserted, a hook 822 is provided in the socket 821, and the handle 812 is used for being held by a user, so as to operate the hook 811 to rotate to hook the hook 822 or disengage from the hook 822, so as to realize snap-locking of the first snap structure 81 and the second snap structure 82. Convenient locking can be realized at convenient operation, and the butt joint is quick accurate, reaches the purpose of saving time, raising the efficiency.
In some embodiments, the test fixture 100 further includes an in-position sensor, which may be a metal distance sensor to detect the in-position state of the first snap structure 81.
In some embodiments, the cover plate 11 is detachably mounted to the first housing 60. The embodiment of the utility model provides an in, through the setting of dismantling of apron 11, can be according to the apron 11 of the veneer in order to change the matching of difference.
In some embodiments, the carrier plate 13 is removably mounted to the second housing 70. The embodiment of the present invention provides an embodiment, through the detachable setting of the carrier plate 13, the matched carrier plate 13 can be changed according to different single plates.
Because the communication products are frequently updated and replaced, the PCBAs of the series frequency bands are similar in structure and are close in test means, tests of different single plates can be performed by replacing the cover plate 11, the carrier plate 13 and the needle plate 12, the whole test fixture 100 does not need to be replaced, the test time of batch products is shortened, and the cost is reduced. Moreover, the cover plate 11, the carrier plate 13 and the needle plate 12 with different sizes can be replaced according to single plates with different sizes, and the shielding effectiveness of the large-size radio frequency single plate can be realized.
In some embodiments, as shown in fig. 1 and 2, the test fixture 100 further includes a positioning structure 90, and the positioning structure 90 is used for positioning the position of the product 200 to be tested. In the embodiment of the present invention, the positioning structure 90 can be used to accurately place the veneer.
In some embodiments, as shown in fig. 2, the positioning structure 90 includes a positioning block 91 and/or a positioning post 92, the positioning block 91 is detachably mounted on the surface of the carrier 13, the positioning block 91 has a positioning notch 911, and an inner wall of the positioning notch 911 is used for abutting against an edge of the product 200 to be tested to position the product 200 to be tested; the positioning column 92 is detachably mounted on the surface of the support plate 13, and the positioning column 92 is used for penetrating through a through hole reserved on the product 200 to be tested to position the product 200 to be tested. In the embodiment of the present invention, the positioning block 91, the positioning notch 911 thereof, and the positioning column 92 are disposed to ensure that the single board is accurately placed in place, so that the probe 121 is connected to the point to be tested of the single board to collect the test signal. Wherein, locating piece 91 and reference column 92 are detachable settings, convenient to install and dismantle and later stage maintenance. Moreover, after different carrier plates 13 are replaced, the positioning block 91 and the positioning column 92 can be detached and installed on the replaced carrier plate 13, so that repeated use is realized, and the cost is saved.
For example, the positioning structure 90 may include one of a positioning block 91 and a positioning post 92 to position the veneer. Illustratively, the positioning structure 90 may also include a positioning block 91 and a positioning post 92, which cooperate to better achieve the precise positioning of the veneer.
In some embodiments, the test fixture 100 further includes a positioning sensor, which may be a fiber optic sensor, for detecting the in-place state of the veneer.
In some embodiments, as shown in fig. 1 to 5, the test fixture 100 further includes a base 110 and a second locking structure, the base 110 has a cavity therein, the second housing 70 is rotatably connected to the base 110 to open or close the cavity of the base 110, the second locking structure is mounted on the base 110 and/or the second housing 70, and the second locking structure is used for locking the second housing 70 when the second housing 70 is closed on the base 110 to limit the rotation of the second housing 70. The embodiment of the present invention provides a hinge or other hinge structure can be arranged between the base 110 and the second housing 70 to connect the rotation between the base 110 and the second housing 70, the second locking structure can be locked to the second housing 70 by using a buckle structure or a magnetic attraction structure or an electronic lock, and the base 110 can be opened only by operating the second locking structure to unlock the second housing.
Illustratively, the cavity of the base 110 may be used for accommodating a power supply unit and one or more control units for controlling the activation of the driving assembly 20, the first heat dissipation fan 34, the second heat dissipation fan 40, and the like. As shown in fig. 1, fig. 3 and fig. 4, the outer wall of the base 110 is further provided with a button 1101 electrically connected to the control unit, and a user can control the activation of the driving assembly 20, the first heat dissipation fan 34 or the second heat dissipation fan 40 by pressing the button 1101. Alternatively, the base 110 may also be provided with a touch screen, and a user may control the driving component 20, the first cooling fan 34, the second cooling fan 40, or other devices to start by operating the touch screen. Alternatively, the user may directly control the activation of the driving component 20, the first cooling fan 34, the second cooling fan 40, and the like through the software of the terminal. How the user operates to activate the driving assembly 20, the first heat dissipation fan 34 or the second heat dissipation fan 40 is not limited herein.
In some embodiments, as shown in fig. 1, 3 and 4, handles 140 are further disposed on two sides of the base 110 and/or the second housing 70, and the number of the handles 140 may be one or more, and the handles 140 are used for being held by a user to facilitate the transportation of the test fixture 100.
In some embodiments, as shown in fig. 1 to 5, the test fixture 100 further includes a first air spring 120, the first air spring 120 is connected between the first housing 60 and the second housing 70, and when the first locking structure 80 is unlocked to enable the first housing 60 to rotate, the first air spring 120 automatically pulls apart the support to facilitate the insertion or removal of the veneer.
Illustratively, the first housing 60 may be automatically rotated to 60 ° -80 ° from the horizontal plane by the arrangement of the first gas spring 120. Illustratively, the first gas spring 120 may automatically pull the support apart to bring the first housing 60 at 60 °, 70 ° (as shown in fig. 1) or 80 ° from the horizontal plane, so as to have enough operating space for placing or removing veneer sheets.
For example, as shown in fig. 1, the test fixture 100 may be provided with two first air springs 120, wherein one first air spring 120 is disposed at the left side of the test fixture 100 and connected between the first housing 60 and the second housing 70, and the other first air spring 120 is disposed at the right side of the test fixture 100 and connected between the first housing 60 and the second housing 70, and the first housing 60 is supported by the left and right first air springs 120, so that the force is balanced.
In some embodiments, as shown in FIG. 3, test fixture 100 further includes a second gas spring 130, second gas spring 130 is coupled between second housing 70 and base 110, and second gas spring 130 automatically pulls apart the support when the second locking mechanism is unlocked to enable second housing 70 to rotate, to facilitate servicing of the device within the cavity of base 110.
Illustratively, the second housing 70 can be automatically rotated to 30-60 from horizontal by the provision of the second gas spring 130. Illustratively, the second gas spring 130 can be automatically pulled open to support the second housing 70 at 30 °, 40 °, 45 ° (as shown in fig. 3), 50 °, or 60 ° from horizontal to allow sufficient operating space for servicing components within the cavity of the base 110.
For example, as shown in fig. 3, the test fixture 100 may be provided with two second gas springs 130, wherein one second gas spring 130 is disposed at the left side of the test fixture 100 and connected between the second housing 70 and the base 110, and the other second gas spring 130 is disposed at the right side of the test fixture 100 and connected between the second housing 70 and the base 110, and the second housing 70 is supported by the left and right second gas springs 130, so that the stress is balanced.
The utility model discloses test fixture 100's working process as follows:
the handle 812 is rotated counterclockwise to disengage the hook 811 from the hook 822, and the first casing 60 can be rotated relative to the second casing 70, at this time, the first casing 60, and the top plate 16 and the cover plate 11 located inside the second casing 70 are automatically rotated counterclockwise by 70 ° to be in an open state (as shown in fig. 1) under the action of the first air spring 120.
The single board is accurately placed in place under the action of the positioning block 91 and the positioning column 92 on the carrier plate 13.
The first housing 60 is rotated so that the cover plate 11 is horizontally positioned above the veneer on the carrier plate 13.
The button 1101 on the outer wall of the bottom box is pressed to start the driving part 21, the push plate 22 is driven to drive the needle plate 12 to move upwards, the second elastic part 50 between the needle plate 12 and the support plate 13 is elastically compressed, the impact stress when the test fixture 100 is closed is effectively reduced, the support plate 13 is further driven to push the single plate to ascend and be attached to the cover plate 11, wherein a first shielding cavity 14 is formed between the TOP surface of the single plate and the cover plate 11, a second shielding cavity 15 is formed between the BOT surface of the single plate and the support plate 13, and the two formed shielding cavities meet the test requirements of the single plate.
The needle plate 12 continues to move upward to be in buffer-type fit with the support plate 13 through the second elastic member 50, and meanwhile, the heat dissipation assembly 30 is driven to be in buffer-type contact with the heating element 201 of the single plate through the first elastic member 1222, so that damage to the heating element 201 caused by impact force is prevented, surface fitting is sufficient, heat transfer in a test process is achieved, and hot air is blown to the outside of the test fixture 100 through the second heat dissipation fan 40 to meet heat dissipation requirements.
The utility model also provides a test equipment, including the test fixture 100 of testing arrangement and any one of the above-mentioned embodiments, probe 121 is used for with the test point contact of the product 200 that awaits measuring with gather test signal and feed back to testing arrangement, testing arrangement is used for accepting test signal and carries out data analysis to accomplish the detection of the various performances of the product 200 that awaits measuring. The embodiment of the utility model provides a test equipment has all beneficial effects that the technical scheme of above-mentioned arbitrary embodiment brought, no longer gives unnecessary details here.
The number of the embodiment of the present invention is only for description, and does not represent the advantages or disadvantages of the embodiment. The above description is only for the specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art can easily think of various equivalent modifications or replacements within the technical scope of the present invention, and these modifications or replacements should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (10)
1. A test fixture, comprising:
the fixture assembly comprises a cover plate, a needle plate and a support plate, wherein the support plate is used for bearing a product to be tested, a through hole and a through groove are formed in the support plate, the cover plate is used for covering the product to be tested borne by the support plate, the needle plate is located below the support plate, and the needle plate is provided with a probe;
the driving assembly is connected with the needle plate and used for driving the needle plate to move up and down, and when the needle plate moves up, the needle plate drives the probes to penetrate through the through holes to be in contact with the test points of the product to be tested so as to acquire test signals;
and the heat dissipation assembly is connected with the needle plate, and when the needle plate moves upwards, the heat dissipation assembly is driven to penetrate through the through groove to be in contact with the heating element of the product to be detected so as to dissipate heat of the heating element.
2. The test fixture of claim 1, wherein the heat sink assembly comprises:
the mounting part is mounted at the bottom of the needle plate;
the heat conducting part is arranged above the mounting part and penetrates through the needle plate;
a heat dissipation portion provided below the mounting portion;
when the needle plate moves upwards, the heat conduction part is driven to penetrate through the through groove to be in contact with the heating element of the product to be tested, so that the heat generated by the heating element is conducted to the heat dissipation part by the heat conduction part, and the heat is dissipated through the heat dissipation part.
3. The test fixture of claim 2, wherein the pin plate has a resilient structure at a bottom thereof, the mounting portion is connected to the resilient structure, and the heat conducting portion is configured to compress the resilient structure when abutting against the heat generating component, such that the heat conducting portion is in cushioning contact with the heat generating component.
4. The test fixture of claim 3, wherein the resilient structure comprises:
the guide post is connected to the bottom of the needle plate and extends downwards along the vertical direction, a blocking part is arranged on the guide post, and the mounting part is sleeved on the guide post and movably arranged between the blocking part and the bottom surface of the needle plate;
the first elastic piece is sleeved on the guide post, one end of the first elastic piece is abutted to the mounting portion, the other end of the first elastic piece is abutted to the blocking portion, and the heat conduction portion and the heating element are in butt joint and drive the first elastic piece to be compressed through the mounting portion so as to enable the heat conduction portion to be in buffer contact with the heating element.
5. The test fixture of claim 2, wherein the heat sink portion includes a first end coupled to the mounting portion and a second end opposite the first end, the second end having a plurality of fins; and/or the presence of a gas in the gas,
the heat dissipation assembly further comprises a first heat dissipation fan, and the first heat dissipation fan is arranged below the heat dissipation part.
6. The test fixture of any of claims 1-5,
the needle plate is detachably arranged on the driving assembly; and/or the presence of a gas in the gas,
the heat dissipation assembly is detachably mounted on the needle plate; and/or the presence of a gas in the atmosphere,
a second elastic piece is arranged between the needle plate and the carrier plate, and the needle plate is driven to compress when moving upwards so as to enable a product to be tested on the carrier plate to be attached to the cover plate in a buffering manner; and/or the presence of a gas in the gas,
the cover plate is provided with a first avoidance groove for avoiding a functional device on a first side surface of the product to be detected, when the cover plate covers the product to be detected, the product to be detected is covered in the first avoidance groove to form a first shielding cavity, and the first side surface is the surface of the product to be detected, which is opposite to the cover plate when the product to be detected is placed on the carrier plate; and/or the presence of a gas in the gas,
the carrier plate is provided with a second avoiding groove used for avoiding a functional device on the second side surface of the product to be detected, the product to be detected is placed on the carrier plate, the second avoiding groove is covered with the product to be detected so as to form a second shielding cavity, and the second side surface is the surface, opposite to the carrier plate, of the product to be detected when the product to be detected is placed on the carrier plate.
7. The test fixture of any one of claims 1-5, further comprising:
a first housing to which the cover plate is mounted;
the second shell is rotationally connected with the first shell, the carrier plate is arranged on the second shell, and the first shell rotates to cover the second shell so that the cover plate covers a product to be tested borne by the carrier plate;
the first locking structure is arranged on the first shell and/or the second shell, and the first locking structure is used for locking the first shell when the first shell covers the second shell so as to limit the rotation of the first shell.
8. The test fixture of claim 7,
the cover plate is detachably mounted on the first shell; and/or the presence of a gas in the atmosphere,
the support plate is detachably arranged on the second shell; and/or the presence of a gas in the gas,
the first locking structure comprises a first buckle structure and a second buckle structure, the first buckle structure is rotatably connected to the first shell, the second buckle structure is mounted on the second shell, and the first buckle structure is clamped on the second buckle structure or separated from the second buckle structure by rotating, so that the first shell is locked or unlocked.
9. The test fixture of any of claims 1-5, further comprising a positioning structure for positioning a position of the product to be tested.
10. A test apparatus comprising a test fixture according to any one of claims 1 to 9 and a test device, the probe being adapted to contact a test point of the product under test to collect and feed back a test signal to the test device, the test device being adapted to receive the test signal and perform data analysis.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222133763.6U CN218514725U (en) | 2022-08-12 | 2022-08-12 | Test fixture and test equipment |
| PCT/CN2023/080501 WO2024031978A1 (en) | 2022-08-12 | 2023-03-09 | Test clamp and test apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222133763.6U CN218514725U (en) | 2022-08-12 | 2022-08-12 | Test fixture and test equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218514725U true CN218514725U (en) | 2023-02-21 |
Family
ID=85209843
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222133763.6U Active CN218514725U (en) | 2022-08-12 | 2022-08-12 | Test fixture and test equipment |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN218514725U (en) |
| WO (1) | WO2024031978A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116520139A (en) * | 2023-07-05 | 2023-08-01 | 苏州韬盛电子科技有限公司 | Chip test fixture |
| WO2024031978A1 (en) * | 2022-08-12 | 2024-02-15 | 中兴通讯股份有限公司 | Test clamp and test apparatus |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101201775A (en) * | 2006-12-14 | 2008-06-18 | 英业达股份有限公司 | Testing clamp for circuit board |
| CN202256398U (en) * | 2011-09-26 | 2012-05-30 | 北京华龙通科技有限公司 | Test fixture for crystal resonator |
| CN103792483B (en) * | 2014-01-24 | 2016-04-06 | 苏州高新区世纪福科技有限公司 | Mobile phone PCB proving installation |
| TWM480762U (en) * | 2014-03-12 | 2014-06-21 | Chroma Ate Inc | Stacked package structure testing device with heat dissipation module |
| CN211741489U (en) * | 2019-11-22 | 2020-10-23 | 安徽瑞昱创科科技有限公司 | Hand tool is prevented pressing from both sides by sucking disc formula |
| CN111571489B (en) * | 2020-05-29 | 2022-05-31 | 四川华丰科技股份有限公司 | Optical module test fixture |
| CN213337732U (en) * | 2020-09-29 | 2021-06-01 | 西门子数控（南京）有限公司 | PCB testing clamp and testing platform |
| CN113990818B (en) * | 2020-11-30 | 2022-07-19 | 珠海市精实测控技术有限公司 | Penetrating type heat dissipation device for card chip of tested board |
| CN215728239U (en) * | 2021-06-17 | 2022-02-01 | 珠海市运泰利自动化设备有限公司 | Single support plate floating structure |
| CN218514725U (en) * | 2022-08-12 | 2023-02-21 | 中兴通讯股份有限公司 | Test fixture and test equipment |
-
2022
- 2022-08-12 CN CN202222133763.6U patent/CN218514725U/en active Active
-
2023
- 2023-03-09 WO PCT/CN2023/080501 patent/WO2024031978A1/en unknown
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024031978A1 (en) * | 2022-08-12 | 2024-02-15 | 中兴通讯股份有限公司 | Test clamp and test apparatus |
| CN116520139A (en) * | 2023-07-05 | 2023-08-01 | 苏州韬盛电子科技有限公司 | Chip test fixture |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2024031978A1 (en) | 2024-02-15 |
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