CN219162202U

CN219162202U - Aging test fixture

Info

Publication number: CN219162202U
Application number: CN202223269349.4U
Authority: CN
Inventors: 高飞龙
Original assignee: Suzhou Ouzhao Automation Equipment Co ltd
Current assignee: Suzhou Ouzhao Automation Equipment Co ltd
Priority date: 2022-12-06
Filing date: 2022-12-06
Publication date: 2023-06-09
Anticipated expiration: 2032-12-06

Abstract

The utility model discloses an aging test fixture, which comprises a pcb board, wherein a bottom board is fixedly arranged on the pcb board, a positioning board is arranged on the bottom board, the positioning board is positioned in the middle of the bottom board, a product is placed on the positioning board, a probe is fixedly arranged on the pcb board, the probe sequentially passes through the bottom board and the positioning board and then contacts with the product, a heat dissipation board is pressed on the upper surface of the product, the heat dissipation board is used for pressing and fixing the product on the positioning board, the probe is directly and fixedly arranged on the pcb board without flying wire connection, the probe is arranged below the product, the device height of the test fixture is effectively reduced, the heat dissipation board is arranged above the product, and the heat dissipation board is used for radiating and pressing the product.

Description

Aging test fixture

Technical Field

The utility model relates to the field of ageing clamps, in particular to an ageing test clamp.

Background

When ageing test is carried out on some high-power electronic components such as brick products, the products are required to have good heat dissipation, so that the heat dissipation surface of the product shell is required to be in close contact with the heat dissipation plate on the ageing clamp, meanwhile, the area of the heat dissipation plate is required to be as large as possible, the ageing clamp is generally fixed by the heat dissipation plate of the ageing clamp, and then the products are tightly pressed on the heat dissipation plate, when the heat dissipation surface of the products is arranged on the back surface of the leading-out pins, if the heat dissipation surface of the products is tightly pressed on the heat dissipation plate of the ageing clamp according to the traditional design, the leading-out pins of the products are upwards, and because the high-power products have larger current, the contact area with the probes is larger, the probes are required to be fixed above the products and can move up and down, the ageing clamp is required to be realized by quick clamps, but the ageing clamp designed is larger in size, and the lead connection parts are easy to be damaged when the probes are repeatedly moved up and down for a long time, so that the problems exist in the traditional clamp: 1. the structure is more complex, and the application range is smaller; 2. the probe needs to be connected with the pcb board through a flying lead, the probe needs to repeatedly move up and down, and the connecting part of the long-time lead is easy to damage.

Disclosure of Invention

In order to solve the technical problems, the utility model provides an aging test fixture, which comprises a pcb board, wherein a bottom board is fixedly arranged on the pcb board, a positioning board is arranged on the bottom board, the positioning board is positioned in the middle of the bottom board, a product is placed on the positioning board, a probe is fixedly arranged on the pcb board, the probe sequentially passes through the bottom board and the positioning board and then contacts with the product, a heat dissipation board is pressed on the upper surface of the product, and the heat dissipation board is used for pressing and fixing the product on the positioning board.

Preferably: the upper surface of the radiating plate is fixedly provided with a plurality of radiating blocks, the radiating plate is fixedly provided with a temperature detection assembly, and the temperature detection assembly is positioned between the radiating blocks.

Preferably: the temperature detection assembly comprises a fixing seat, an elastic mechanism and a temperature sensor, and the fixing seat is fixedly installed on the radiating plate through bolts.

Preferably: the elastic mechanism is located inside the fixing base, one end of the elastic mechanism is fixedly connected with the fixing base, the other end of the elastic mechanism is connected with a temperature sensor, and the temperature sensor penetrates through the heat dissipation plate to be in contact with the product.

Preferably: the fixed block is fixedly arranged on the bottom plate, and the heat dissipation plate is movably connected with the fixed block through a hinge.

Preferably: the bottom plate is fixedly provided with a ball-collision buckle through a bolt, one end of the heat dissipation plate, which is far away from the hinge, is provided with a clamping block, the clamping block is matched with the ball-collision buckle, and the clamping block is used for being clamped with the ball-collision buckle.

Preferably: the locating plate is fixedly arranged on the bottom plate through bolts.

Preferably: and a jacking device is arranged between the positioning plate and the bottom plate, and the jacking device passes through the positioning plate to be in contact with the product.

Preferably: the jacking device comprises a jacking block, and the jacking block is connected with the bottom plate through a spring.

Preferably: the locating plate is provided with a limiting block, and the limiting block is used for limiting the jacking block.

The utility model has the technical effects and advantages that:

the probe is directly and fixedly arranged on the pcb board, so that flying line connection is not needed, the probe is arranged below a product, the device height of the detection clamp is effectively reduced, the heat dissipation plate is arranged above the product, and the product is subjected to heat dissipation and compression through the heat dissipation plate.

Drawings

FIG. 1 is a top view of a burn-in fixture provided in an embodiment of the present application;

FIG. 2 is a cross-sectional view of a burn-in fixture provided by an embodiment of the present application;

FIG. 3 is a front view of a burn-in fixture provided by an embodiment of the present application;

fig. 4 is a schematic structural diagram of a jack-up device in the burn-in test fixture according to the embodiment of the present application.

In the figure:

1. pcb board, 2, bottom plate, 3, locating plate, 4, probe, 5, product, 6, heating panel, 7, temperature detection subassembly, 8, jack-up device, 201, fixed block, 202, hinge, 203, ball latch, 301, stopper, 601, radiating block, 602, fixture block, 701, fixing base, 702, elastic mechanism, 703, temperature sensor, 801, jack-up piece.

Detailed Description

The utility model will be described in further detail with reference to the drawings and the detailed description. The embodiments of the utility model have been presented for purposes of illustration and description, and are not intended to be exhaustive or limited to the utility model in the form disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiments were chosen and described in order to best explain the principles of the utility model and the practical application, and to enable others of ordinary skill in the art to understand the utility model for various embodiments with various modifications as are suited to the particular use contemplated.

In the description of the present utility model, it should be noted that, directions or positional relationships indicated by terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., are based on directions or positional relationships shown in the drawings, are merely for convenience of description and simplification of description, and do not indicate or imply that the apparatus or element to be referred to must have a specific direction, be constructed and operated in the specific direction, and thus should not be construed as limiting the present utility model; the terms "first," "second," "third," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance, and furthermore, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "coupled," and the like are to be construed broadly, and may be fixedly coupled, detachably coupled, or integrally coupled, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

Examples

As shown in fig. 1-3, in this embodiment, an aging test fixture is provided, including pcb board (1), fixedly mounting bottom board (2) on pcb board (1), fixedly mounting positioning board (3) on bottom board (2) through bolts, product (5) is placed on positioning board (3), the groove adapted to product (5) is provided on positioning board (3), product (5) is placed in the groove on positioning board (3), thereby positioning product (5), effectively increasing detection precision, probe (4) is fixedly mounted on pcb board (1) through welding, probe (4) passes through bottom board (2) and positioning board (3) to contact product (5), through directly welding probe (4) on pcb board (1), the phenomenon that the flying wire junction between probe (4) and pcb board (1) is broken due to repeated up-down movement is effectively avoided, heat dissipation board (6) is placed above product (5), heat dissipation board (6) is fixed on product (5) through welding board (6), heat dissipation board (5) is not fixed on product (5) through fixing heat dissipation board (5) and heat dissipation board (5) is not fixed, therefore, the height of the detection clamp can be effectively reduced, and the detection clamp is simple in structure and wide in application range.

In this embodiment, as shown in fig. 2, a fixed block (201) is fixedly installed on a bottom plate (2) through a bolt, a heat dissipation plate (6) is movably connected with the fixed block (201) through a hinge (202), the heat dissipation plate (6) is lifted and closed by taking the hinge (202) as a pivot, a bump bead buckle (203) is fixedly installed on the bottom plate (2) through a bolt, a clamping block (602) is installed at one end, far away from the hinge (202), of the heat dissipation plate (6), the clamping block (602) is matched with the bump bead buckle (203), when the heat dissipation plate (6) is closed through the hinge (202), the clamping block (602) is clamped with the bump bead buckle (203), so that the heat dissipation plate (6) is limited and fixed, when the heat dissipation plate (6) is required to be lifted, the heat dissipation plate (6) can be lifted only by force, a plurality of heat dissipation blocks 601 are fixedly installed on the upper surface of the heat dissipation plate (6), the heat dissipation efficiency of the heat dissipation plate (6) is improved by increasing the area of the heat dissipation plate (6) through a plurality of the heat dissipation blocks 601, the heat dissipation plate (6) is also fixedly installed on the heat dissipation plate (6) through a bolt, a temperature detection component (7) is installed on the heat dissipation plate (6), the heat dissipation plate (7) comprises a temperature sensor (701) and a heat dissipation seat (701) which are fixedly installed on the heat dissipation plate through a heat dissipation plate (703), the type of elastic mechanism (702) can be according to actual need, adopts the spring in this embodiment, and elastic mechanism (702) is located inside one end of fixing base (701) and fixing base (701) fixed connection, and temperature sensor (703) are installed to the other end, and temperature sensor (703) pass heating panel (6) and product (5) contact, when heating panel (6) push down with product (5) compress tightly the back, closely laminate temperature sensor (703) and product (5) through the thrust of spring.

As shown in fig. 3-4, in this embodiment, a jacking device (8) is installed between a positioning plate (3) and a bottom plate (2), the jacking device (8) passes through the positioning plate (3) and contacts with a product (5), wherein the jacking device (8) comprises a jacking block (801), the jacking block (801) is connected with the bottom plate (2) through a spring, a limiting block (301) is arranged on the positioning plate (3), the jacking block (801) is limited, after the product (5) is pressed and fixed by a heat dissipation plate (6), the jacking block (801) contacts with the product (5), and due to the action of the spring, the jacking block (801) applies thrust to the product (5), so that the product (5) is tightly attached to the heat dissipation plate (6), and the heat dissipation efficiency is increased.

The working principle of the utility model is as follows:

including the pcb board, fixed mounting has the bottom plate on the pcb board, there is the locating plate through bolt fixed mounting on the bottom plate, product has been placed on the locating plate, set up the recess with product looks adaptation on the locating plate, place the product in the recess on the locating plate with this, thereby effectively increase the detection precision, there is the probe through welding fixed mounting on the pcb board, the probe passes bottom plate and locating plate and product contact, through with the probe direct welding on the pcb board, the phenomenon emergence owing to the probe is repeated the line junction damage that leads to between probe and the pcb board that reciprocates, the gland has the heating panel above the product, compress tightly the product and fix in the locating plate through setting up the probe in the product below, set up the heating panel in the product top, not only to can dispel the heat but also play the effect of compressing tightly fixed, thereby can effectually reduce the height of detecting the anchor clamps, the structure is simple application scope is extensive, the heating panel is through bump and fixture block matched with carries out spacing fixedly, can lift up the locking piece at the heating panel only need to lift up the heating panel, therefore, the heat dissipation device is not used in the utility model, the heat dissipation area is improved by a plurality of heat dissipation plate, the utility model, the heat dissipation device is directly used in the heat dissipation plate is improved, the heat dissipation area is directly is improved by the heat dissipation device.

It will be apparent that the described embodiments are only some, but not all, embodiments of the utility model. All other embodiments, which can be made by those skilled in the art and which are included in the embodiments of the present utility model without the inventive step, are intended to be within the scope of the present utility model. Structures, devices and methods of operation not specifically described and illustrated herein, unless otherwise indicated and limited, are implemented according to conventional means in the art.

Claims

1. The aging test fixture comprises a pcb (1), and is characterized in that a bottom plate (2) is fixedly arranged on the pcb (1), a positioning plate (3) is arranged on the bottom plate (2), and the positioning plate (3) is positioned in the middle of the bottom plate (2);

a product (5) is placed on the positioning plate (3), a probe (4) is fixedly installed on the pcb (1), and the probe (4) sequentially passes through the bottom plate (2) and the positioning plate (3) and then contacts with the product (5);

the upper surface of the product (5) is covered with a heat dissipation plate (6), and the heat dissipation plate (6) is used for tightly pressing and fixing the product (5) on the positioning plate (3).

2. The aging test fixture according to claim 1, wherein a plurality of heat dissipation blocks (601) are fixedly mounted on the upper surface of the heat dissipation plate (6), a temperature detection assembly (7) is fixedly mounted on the heat dissipation plate (6), and the temperature detection assembly (7) is located between the heat dissipation blocks (601).

3. The burn-in fixture according to claim 2, wherein the temperature detection assembly (7) comprises a fixing base (701), an elastic mechanism (702) and a temperature sensor (703), and the fixing base (701) is fixedly mounted on the heat dissipation plate (6) through bolts.

4. A burn-in fixture according to claim 3, wherein the elastic mechanism (702) is located inside the fixing base (701), one end of the elastic mechanism (702) is fixedly connected with the fixing base (701), the other end is connected with a temperature sensor (703), and the temperature sensor (703) passes through the heat dissipation plate (6) to be in contact with the product (5).

5. A burn-in fixture according to claim 3, wherein a fixing block (201) is fixedly mounted on the base plate (2), and the heat dissipation plate (6) is movably connected with the fixing block (201) through a hinge (202).

6. The aging test fixture according to claim 5, wherein the bottom plate (2) is fixedly provided with a ball catch (203) through bolts, one end of the heat dissipation plate (6) away from the hinge (202) is provided with a clamping block (602), the clamping block (602) is adapted to the ball catch (203), and the clamping block (602) is used for being clamped with the ball catch (203).

7. A burn-in fixture according to claim 1, wherein the locating plate (3) is fixedly mounted to the base plate (2) by means of bolts.

8. An ageing test fixture according to claim 7, characterized in that a jacking device (8) is mounted between the positioning plate (3) and the base plate (2), the jacking device (8) penetrating the positioning plate (3) to be in contact with the product (5).

9. The burn-in fixture according to claim 8, wherein the jacking means (8) comprises a jacking block (801), the jacking block (801) being connected to the base plate (2) by means of springs.

10. The burn-in fixture of claim 9, wherein the positioning plate (3) is provided with a stopper (301), and the stopper (301) is used for limiting the jack-up block (801).