CN214121546U - Vibration impact test fixture - Google Patents
Vibration impact test fixture Download PDFInfo
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- CN214121546U CN214121546U CN202120354739.8U CN202120354739U CN214121546U CN 214121546 U CN214121546 U CN 214121546U CN 202120354739 U CN202120354739 U CN 202120354739U CN 214121546 U CN214121546 U CN 214121546U
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Abstract
The utility model provides a vibration impact test fixture, which is used for the vibration impact test of a DSC module, and comprises a fixture body and a fixing unit, wherein the fixture body comprises a bottom surface and a test surface, and the bottom surface of the fixture body is used for being connected with a test bench so as to fix the test fixture on the test bench; the fixed unit includes at least one fixed module, fixed module includes that three is fixed terminal on the test surface, three fixed terminal is in distribution on the test surface with the three power terminal phase-match of DSC module, the three power terminal of DSC module respectively with three fixed terminal match is fixed. The utility model provides a vibration impact test anchor clamps can be with the stable fixing of DSC module on the test surface of anchor clamps, when anchor clamps receive the vibration/impact of test bench, can effectually transmit the DSC module of fixing on the test surface, realize the vibration/impact test to the DSC module.
Description
Technical Field
The utility model belongs to semiconductor device tests the field, relates to a vibration impact test anchor clamps.
Background
Various electronic products are subjected to vibration or impact in different degrees during storage, transportation and use. Under extreme conditions, the vibration and impact can cause the failure of products, and some high-end products, such as vehicle-mounted products, need to have very strong vibration and impact resistance. Therefore, in the product development stage, simulation acceleration tests on the vibration and the impact of the product are definitely required to evaluate the performance of the anti-vibration and impact capability of the electronic product.
In order to simulate an actual environment in a laboratory to carry out vibration and impact tests on a tested product, a test fixture is used for mounting and fixing a sample on a vibration device through a fixture, the vibration device carries out vibration and impact according to requirements, and the fixture transmits the vibration/impact undistorted to the sample to evaluate the sample. Therefore, the design, manufacture and installation level of the clamp directly relate to whether the test can be smoothly carried out, and if the judgment of the test result is influenced due to unreasonable clamp, the test loses significance. The test fixture therefore plays a crucial role in the vibration impact of the test specimen.
A double-sided heat dissipation dsc (double side coating) module is a relatively novel packaging sample, and its structure is shown in fig. 1, which includes a ceramic substrate, on one side of which 2 power terminals are disposed; the opposite other side is provided with 1 power terminal, and the Pin of the module is arranged on both sides of the power terminal, and in addition, 3 large power terminals of the module are arranged perpendicularly to the ceramic substrate at 90 degrees. The module currently has no suitable vibration impact fixture in practical application.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a vibration impact test fixture, aim at solving among the prior art problem that the DSC module does not have suitable vibration impact fixture.
In order to solve the technical problem, the utility model provides a vibration impact test fixture, which is used for the vibration impact test of a DSC module, and comprises a fixture body and a fixing unit, wherein the fixture body comprises a bottom surface and a test surface, and the bottom surface of the fixture body is used for being connected with a test bed so as to fix the test fixture on the test bed; the fixed unit includes at least one fixed module, fixed module includes that three is fixed terminal on the test surface, three fixed terminal is in distribution on the test surface with the three power terminal phase-match of DSC module, the three power terminal of DSC module respectively with three fixed terminal match is fixed.
Furthermore, fixed terminal includes two connection faces of mutually perpendicular, and one of them is connected the face and is fixed on the test surface, another connect the face with the test surface is perpendicular, the three power terminal of DSC module respectively with another connection face of three fixed terminal matches fixedly.
Further, the test surface comprises an X-direction test surface, a Y-direction test surface and/or a Z-direction test surface; the X-direction testing surface and the Y-direction testing surface are both vertical to the bottom surface of the clamp body, and the Z-direction testing surface is parallel to the bottom surface of the clamp body; the fixing unit comprises an X-direction fixing unit arranged on the X-direction testing surface, a Y-direction fixing unit arranged on the Y-direction testing surface and/or a Z-direction fixing unit arranged on the Z-direction testing surface, the X-direction fixing unit comprises at least one X-direction fixing module, and intersecting lines of fixing terminals of the X-direction fixing modules are perpendicular to the bottom surface of the clamp body; the Y-direction fixing unit comprises at least one Y-direction fixing module, and the intersection line of the fixing terminals of the Y-direction fixing module is parallel to the bottom surface of the clamp body; the Z-direction fixing unit comprises at least one Z-direction fixing module, and the intersecting line of the fixing terminals of the Z-direction fixing module is parallel to the bottom surface of the clamp body; the intersection line of the fixed terminal is the intersection line of the two connecting surfaces of the fixed terminal.
Further, the test surface comprises an X-direction test surface, the fixing unit comprises X-direction fixing units arranged on the X-direction test surface, the number of the X-direction fixing modules on the X-direction test surface is even, the even number of the X-direction fixing modules are arranged on the X-direction test surface in two rows symmetrically distributed about a first axis, and the fixing terminals of the two X-direction fixing modules symmetrically distributed about the first axis are also symmetrically distributed about the first axis; the first axis is an axis perpendicular to the bottom surface of the fixture on the X-direction test surface.
Further, the test surface comprises a Y-direction test surface, the fixing unit comprises Y-direction fixing units arranged on the Y-direction test surface, the number of the Y-direction fixing modules on the Y-direction test surface is even, the even number of the Y-direction fixing modules are arranged on the Y-direction test surface in two rows symmetrically distributed about a second axis, and the fixing terminals of the two Y-direction fixing modules symmetrically distributed about the second axis are also symmetrically distributed about the second axis; the second axis is an axis on the Y-direction test surface parallel to the bottom surface of the fixture.
Further, the test surface comprises a Z-direction test surface, the fixing unit comprises Z-direction fixing units arranged on the Z-direction test surface, the number of the Z-direction fixing modules on the Z-direction test surface is even, the even number of the Z-direction fixing modules are arranged on the Z-direction test surface in two rows symmetrically distributed about a third axis, and the fixing terminals of the two Z-direction fixing modules symmetrically distributed about the third axis are also symmetrically distributed about the third axis; the third axis is an axis perpendicular to any side of the Z-direction test surface.
Further, the shape of the clamp body is a cube, the bottom surface of the cube is the bottom surface of the clamp body, four side surfaces and the top surface of the cube are the testing surfaces of the clamp body, two opposite side surfaces are two X-direction testing surfaces, the other two opposite side surfaces are two Y-direction testing surfaces, and the top surface of the cube is the Z-direction testing surface.
Further, the bottom surface and the side of anchor clamps body integrated into one piece casting, the top surface of anchor clamps body with the side can be dismantled and be connected.
Furthermore, the bottom surface of the clamp body is provided with a threaded hole for being in threaded connection with the test bench, and the top surface of the clamp body is in threaded connection with the side surface.
Furthermore, the test fixture further comprises a fixed steel plate and a connecting piece, wherein the fixed steel plate is fixed on the top surface of the fixture body, two ends of the fixed steel plate extend out of the top surface of the fixture body, and two ends of the fixed steel plate are respectively connected and fixed with two opposite side surfaces of the fixture body through the connecting piece.
Compared with the prior art, the utility model provides a vibration impact test anchor clamps has set up the anchor clamps that are exclusively used in and match the DSC module, set up on the test surface of anchor clamps with the three power terminal assorted fixed terminal of DSC module, can be with the stable fixing of DSC module on the test surface of anchor clamps, when anchor clamps receive the vibration/impact of test bench like this, can effectually transmit the DSC module of fixing on the test surface, realize the vibration/impact test to the DSC module. And, the utility model provides a test fixture can realize X, Y and the ascending vibration of Z direction impact test to DSC module to the selection needs of test to can realize that single vibration/impact accomplishes the vibration/impact test of DSC module in X, Y, Z three side simultaneously, improve efficiency of software testing greatly.
Drawings
FIG. 1 is a schematic structural view of a DSC module;
fig. 2 is a schematic structural diagram of a vibration impact testing fixture according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of each test surface and its related components in a vibration impact test fixture according to an embodiment of the present invention;
fig. 4 is a schematic structural view of a bottom surface of a vibration impact testing fixture according to an embodiment of the present invention;
fig. 5 is a schematic structural view of a top surface of a clamp in a vibration and impact testing clamp according to an embodiment of the present invention;
fig. 6 is a schematic structural view of a fixing terminal in a vibration impact testing fixture according to an embodiment of the present invention.
Wherein the content of the first and second substances,
10-a clamp body; 11-a bottom surface; 12-a test surface; 21-a fixed module; 22-fixed terminals; a 12X-X direction test surface; a 12Y-Y direction test surface; a 12Z-Z test surface; a 21X-X direction fixing module; 21Y-Y direction fixing module; a 21Z-Z direction fixing module; 22X-X fixed terminal 22X; 22Y-Y fixed terminals; 22Z-Z fixed terminals; 30-fixing a steel plate; 40-connecting piece.
Detailed Description
The vibration impact test fixture provided by the present invention is further described in detail with reference to the accompanying drawings and specific embodiments. The advantages and features of the present invention will become more apparent from the following description. It should be noted that the drawings are in simplified form and are not to precise scale, and are provided for convenience and clarity in order to facilitate the description of the embodiments of the present invention.
Fig. 2 to fig. 6 are schematic structural diagrams of a vibration impact testing fixture and related components thereof according to an embodiment of the present invention. Referring to fig. 2 to 6, a vibration impact test fixture is used for a vibration impact test of a DSC module, wherein a schematic structural diagram of the DSC module is shown in fig. 1, the test fixture includes a fixture body 10 and a fixing unit, the fixture body includes a bottom surface 11 and a test surface 12, the bottom surface 11 of the fixture body 10 is used for being connected with a test bench, so that the test fixture is fixed on the test bench, and the test bench is used for providing a vibration impact force to the test fixture to perform a vibration and impact test; the fixed unit includes at least one fixed module 21, fixed module 21 includes that three are fixed terminal 22 on the test surface 12, three fixed terminal 22 are in distribution on the test surface 12 with the three power terminal phase-match of DSC module, the three power terminal of DSC module respectively with three fixed terminal 22 match is fixed. In this embodiment, a dedicated fixture for matching the DSC module is provided, and the fixing terminals 22 matching with the three power terminals of the DSC module are provided on the testing surface of the fixture, so that the DSC module can be stably fixed on the testing surface of the fixture, and thus when the fixture is subjected to vibration/impact of the test bed, the vibration/impact can be effectively transmitted to the DSC module fixed on the testing surface, and the vibration/impact test of the DSC module can be realized.
As shown in fig. 6, as an implementation manner of this embodiment, the fixed terminal 22 includes two connection surfaces perpendicular to each other, one of the connection surfaces is fixed on the test surface 12 in parallel with the test surface 12, the other connection surface is perpendicular to the test surface 12, and the three power terminals of the DSC module are respectively fixed to the other connection surfaces of the three fixed terminals 22 in a matching manner. Wherein, fixed terminal 22 can adopt the good non-deformable material of rigidity to make, and it is the bridge of connecting test fixture and DSC module, sets up fixed module into three and DSC module's three power terminal assorted fixed terminal, can realize the stable connection between DSC module and the test surface 12 to can not produce adverse effect to the DSC module, and can be perfect transmission vibration/impact force give the DSC module.
Preferably, in order to realize the vibration/impact test of the DSC module in all directions, the test surface 12 may include an X-direction test surface 12X, Y toward the test surface 12Y and/or a Z-direction test surface 12Z; the X-direction test surface 12X and the Y-direction test surface 12Y are both perpendicular to the bottom surface 11 of the fixture body 10, and the Z-direction test surface 12Z is parallel to the bottom surface 11 of the fixture body 10; the fixing unit comprises an X-direction fixing unit arranged on the X-direction test surface 12X, a Y-direction fixing unit arranged on the Y-direction test surface 12Y and/or a Z-direction fixing unit arranged on the Z-direction test surface 12Z, the X-direction fixing unit comprises at least one X-direction fixing module 21X, and the intersecting lines of X-direction fixing terminals 22X of the X-direction fixing module 21X are perpendicular to the bottom surface 11 of the clamp body 10; the Y-direction fixing unit comprises at least one Y-direction fixing module 21Y, and the intersecting line of Y-direction fixing terminals 22Y of the Y-direction fixing module 21Y is parallel to the bottom surface 11 of the clamp body 10; the Z-direction fixing unit comprises at least one Z-direction fixing module 21Z, and the intersecting line of the Z-direction fixing terminals 22Z of the Z-direction fixing module 21Z is parallel to the bottom surface 11 of the clamp body 10; the intersection line of the fixed terminal 22 is the intersection line of two connection faces of the fixed terminal 22. In this embodiment, the DSC module X, Y and the vibration/shock test in the Z direction can be implemented according to the selection requirements of the test. When X, Y, Z test surfaces exist at the same time, the single vibration/impact can be realized to complete the vibration/impact test of the DSC module in X, Y, Z three directions at the same time, and the test efficiency is greatly improved.
In order to improve the stability of the fixture during the vibration and impact test, the number of the X-direction fixing modules 21X on the X-direction test surface 12X is even, for example, 6, as shown in fig. 2, the even number of X-direction fixing modules 21X are arranged on the X-direction test surface 12X in two rows symmetrically distributed about a first axis, and the X-direction fixing terminals 22X of two X-direction fixing modules 21X symmetrically distributed about the first axis are also symmetrically distributed about the first axis; the first axis is an axis perpendicular to the bottom surface 11 of the jig 10 on the X-direction test surface 12X. For example, the type a fixed terminals of the X-direction fixed module 21X in each column are all disposed close to the first axis, and the type B fixed terminals are all disposed away from the first axis; the A-type fixed terminal of the fixed module is a fixed terminal connected with two power terminals on the same side of the DSC module, and the B-type fixed terminal is a fixed terminal connected with one power terminal on the Pin foot side of the DSC module.
Similarly, the number of the Y-direction fixing modules 21Y on the Y-direction test surface 12Y is an even number, the even number of the Y-direction fixing modules 21Y are arranged in two rows symmetrically distributed about the second axis on the Y-direction test surface 12Y, and the Y-direction fixing terminals 22Y of the two Y-direction fixing modules 21Y symmetrically distributed about the second axis are also symmetrically distributed about the second axis; the second axis is an axis on the Y-direction test surface 12Y parallel to the bottom surface 11 of the jig 10.
The number of the Z-direction fixing modules 21Z on the Z-direction test surface 12Z is an even number, the even number of Z-direction fixing modules 21Z are arranged in two rows symmetrically distributed about a third axis on the Z-direction test surface 12Z, and the Z-direction fixing terminals 22Z of the two Z-direction fixing modules 21Z symmetrically distributed about the third axis are also symmetrically distributed about the third axis; the third axis is an axis perpendicular to any one side of the Z-direction test surface 12Z.
Preferably, the shape of the fixture body 10 may be a cube, the bottom surface of the cube is the bottom surface 11 of the fixture body 10, the four side surfaces and the top surface of the cube are the test surfaces 12 of the fixture body, two opposite side surfaces are two X-direction test surfaces 12X, the other two opposite side surfaces are two Y-direction test surfaces 12Y, and the top surface of the cube is the Z-direction test surface 12Z.
Preferably, the bottom surface and the side surface of the clamp body 10 are integrally molded and cast, so that the energy of the clamp can be effectively transferred to the DSC module in the vibration process, and the vibration waveform is not distorted; the top surface of the fixture body 10 is detachably connected with the side surface. Specifically, the bottom surface of the fixture body 10 may be provided with a threaded hole, as shown in fig. 4, the threaded hole is used for being in threaded connection with the test table, and a matching threaded hole may also be provided between the top surface and the side surface of the fixture body 10, as shown in fig. 3 and 5, so that the top surface and the side surface are in threaded connection, and thus, the six surfaces of the fixture are connected into a whole.
Preferably, the clamp further comprises a fixed steel plate 30 and a connecting piece 40, wherein the fixed steel plate 30 is fixed on the top surface of the clamp body 10, two ends of the fixed steel plate 30 extend out of the top surface of the clamp body 10, and two ends of the fixed steel plate 30 are respectively connected and fixed with two opposite side surfaces of the clamp body 10 through the connecting piece 40. Set up fixed steel sheet 30 at the top surface of anchor clamps body, fixed steel sheet 30 accessible connecting piece is fixed with the side for except threaded connection, still added a heavy fixed connection mode between side and the top surface, dual fixed connection's mode can be connected more firmly between the top surface of anchor clamps body and the side, at the vibration impact test in-process, has improved test fixture's stability. The connecting member may be a fixed terminal structure, one connecting surface is fixed at one end of the fixed steel plate 30, and the other connecting surface is fixed on the side surface of the test fixture. In addition, the number of the connecting steel plates 30 can be two, and one connecting steel plate is arranged on each of the two sides of the top surface of the clamp body, so that the connecting stability is improved.
Optionally, the clamp body 10 may be made of a magnesium alloy material with large specific stiffness and large damping, so as to ensure that the energy of the vibration test bed can be effectively transmitted to the DSC module.
To sum up, the utility model provides a vibration impact test anchor clamps has set up the anchor clamps that are exclusively used in and match the DSC module, set up on the test surface of anchor clamps with the three power terminal assorted fixed terminal of DSC module, can be with the stable fixing of DSC module on the test surface of anchor clamps, when anchor clamps receive the vibration/impact of test bench like this, can effectually transmit the DSC module of fixing on the test surface, realize the vibration/impact test to the DSC module. And, the utility model provides a test fixture can realize X, Y and the ascending vibration of Z direction impact test to DSC module to the selection needs of test to can realize that single vibration/impact accomplishes the vibration/impact test of DSC module in X, Y, Z three side simultaneously, improve efficiency of software testing greatly.
The above description is only for the preferred embodiment of the present invention and is not intended to limit the scope of the present invention, and any modification and modification made by those skilled in the art according to the above disclosure are all within the scope of the claims.
Claims (10)
1. A vibration impact test fixture is used for vibration impact test of a DSC module and is characterized by comprising a fixture body and a fixing unit, wherein the fixture body comprises a bottom surface and a test surface, and the bottom surface of the fixture body is used for being connected with a test bed so as to fix the test fixture on the test bed;
the fixed unit includes at least one fixed module, fixed module includes that three is fixed terminal on the test surface, three fixed terminal is in distribution on the test surface with the three power terminal phase-match of DSC module, the three power terminal of DSC module respectively with three fixed terminal match is fixed.
2. A vibration and impact test fixture as claimed in claim 1, wherein said fixed terminals include two connecting faces perpendicular to each other, one of the connecting faces is fixed on said test face, the other connecting face is perpendicular to said test face, and three power terminals of said DSC module are respectively fixed in matching with the other connecting face of said three fixed terminals.
3. A vibratory impact test fixture as set forth in claim 2 wherein said test face comprises an X-direction test face, a Y-direction test face, and/or a Z-direction test face; the X-direction testing surface and the Y-direction testing surface are both vertical to the bottom surface of the clamp body, and the Z-direction testing surface is parallel to the bottom surface of the clamp body;
the fixing unit comprises an X-direction fixing unit arranged on the X-direction testing surface, a Y-direction fixing unit arranged on the Y-direction testing surface and/or a Z-direction fixing unit arranged on the Z-direction testing surface,
the X-direction fixing unit comprises at least one X-direction fixing module, and the intersecting lines of the fixing terminals of the X-direction fixing module are perpendicular to the bottom surface of the clamp body;
the Y-direction fixing unit comprises at least one Y-direction fixing module, and the intersection line of the fixing terminals of the Y-direction fixing module is parallel to the bottom surface of the clamp body;
the Z-direction fixing unit comprises at least one Z-direction fixing module, and the intersecting line of the fixing terminals of the Z-direction fixing module is parallel to the bottom surface of the clamp body;
the intersection line of the fixed terminal is the intersection line of the two connecting surfaces of the fixed terminal.
4. A vibration impact test fixture as claimed in claim 3, wherein said test surface comprises an X-direction test surface, said fixing unit comprises an X-direction fixing unit disposed on said X-direction test surface, the number of X-direction fixing modules on said X-direction test surface is an even number, the even number of X-direction fixing modules are disposed on said X-direction test surface in two rows symmetrically distributed about a first axis, and fixing terminals of two X-direction fixing modules symmetrically distributed about said first axis are also symmetrically distributed about said first axis; the first axis is an axis perpendicular to the bottom surface of the fixture on the X-direction test surface.
5. A vibration impact test jig according to claim 3, wherein the test surface comprises a Y-direction test surface, the fixing unit comprises Y-direction fixing units provided on the Y-direction test surface, the number of the Y-direction fixing modules on the Y-direction test surface is an even number, the even number of the Y-direction fixing modules are provided on the Y-direction test surface in two rows symmetrically distributed about a second axis, and the fixing terminals of two Y-direction fixing modules symmetrically distributed about the second axis are also symmetrically distributed about the second axis; the second axis is an axis on the Y-direction test surface parallel to the bottom surface of the fixture.
6. A vibration impact test fixture as claimed in claim 3, wherein said test surface comprises a Z-direction test surface, said fixing unit comprises Z-direction fixing units disposed on said Z-direction test surface, the number of Z-direction fixing modules on said Z-direction test surface is an even number, the even number of Z-direction fixing modules are disposed on said Z-direction test surface in two rows symmetrically distributed about a third axis, and fixing terminals of two Z-direction fixing modules symmetrically distributed about said third axis are also symmetrically distributed about said third axis; the third axis is an axis perpendicular to any side of the Z-direction test surface.
7. A vibration and impact test fixture as claimed in claim 3, wherein said fixture body is shaped as a cube, said bottom surface of said cube is a bottom surface of said fixture body, four side surfaces and a top surface of said cube are test surfaces of said fixture body, two opposite side surfaces are two X-direction test surfaces, the other two opposite side surfaces are two Y-direction test surfaces, and said top surface of said cube is said Z-direction test surface.
8. A vibration and impact testing fixture according to claim 7, wherein the bottom surface and the side surfaces of the fixture body are integrally molded and cast, and the top surface of the fixture body is detachably connected to the side surfaces.
9. The clamp for the vibration and impact test of claim 8, wherein the bottom surface of the clamp body is provided with a threaded hole for being in threaded connection with the test table, and the top surface of the clamp body is in threaded connection with the side surface.
10. The vibration and impact test fixture of claim 9, further comprising a fixing steel plate and a connecting member, wherein the fixing steel plate is fixed on the top surface of the fixture body, two ends of the fixing steel plate extend out of the top surface of the fixture body, and two ends of the fixing steel plate are respectively connected and fixed with two opposite side surfaces of the fixture body through the connecting member.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120354739.8U CN214121546U (en) | 2021-02-08 | 2021-02-08 | Vibration impact test fixture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120354739.8U CN214121546U (en) | 2021-02-08 | 2021-02-08 | Vibration impact test fixture |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214121546U true CN214121546U (en) | 2021-09-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120354739.8U Active CN214121546U (en) | 2021-02-08 | 2021-02-08 | Vibration impact test fixture |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214121546U (en) |
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2021
- 2021-02-08 CN CN202120354739.8U patent/CN214121546U/en active Active
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