TW202406437A - Sliding burn-in socket and operation method thereof including a base, a carrier, a heat dissipation unit and a handle - Google Patents

Abstract

The present invention discloses a sliding burn-in socket, which includes: a base fixed to a circuit board; a carrier located above the base and connected to the base via an elastic connection means so that the carrier can move vertically relative to the base; a heat dissipation unit located above the carrier and configured to be vertically movable relative to the base between a closed position and an open position; and a handle connected to the heat dissipation unit and being operable to move the base vertically between the closed position and the open position.

Description

Sliding burn-in socket and its operation method

The present invention relates to a burn-in socket and an operating method thereof, in particular to a burn-in socket that is opened and closed by a sliding mechanism and an operating method for opening and closing the socket.

In current burn-in tests, chips are becoming more and more powerful, and the heat generated at high power is also higher. In order to meet the heat dissipation needs of the burn-in socket, the usual method is to add heat dissipation means, such as configuring heat dissipation fins, vapor chambers or heat pipes with good thermal conductivity in the cover of the burn-in socket, or even adding additional cooling fans or water cooling. device. Since most of these heat dissipation means are made of heavy metal structures and are usually placed on the cover of the burn-in socket, the weight of the cover of the burn-in socket is usually greater than the burn-in base fixed to the burn-in carrier board. a lot of. When the cover of the burn-in socket is operated to move relative to the base of the burn-in socket, such as pivoting or sliding (horizontal sliding), especially when the overall center of gravity of the cover of the burn-in socket exceeds the base of the burn-in socket When the power is turned on, the cover of the burn-in socket will generate a large moment due to gravity, causing damage to the connection structure between the cover of the burn-in socket and the base of the burn-in socket. The damaged connection structure can increase additional friction, making it difficult for users to operate the cover smoothly. Even when the cover and the base are opened by operation and generate a moment, the overweight cover may deform the burner board and further affect the connection and fixation between the base of the burner socket and the burner board. structure.

The first figure shows the opening process of a conventional flip-top burn-in socket (10). The flip-top burn-in socket (10) has a base (12) connected to a circuit board (11) and a cover (13) connected to the base (12). The device under test (not shown), that is, the chip, is accommodated in the base (12) and is electrically connected to the circuit board (11) via the base (12). The cover (13) contains a heat dissipation fin set (131) and a fan (132), where the heat dissipation fin set (131) is pivotally connected to the base (12), and the fan (132) is connected to the heat dissipation fin set (131) ). The heat dissipation fin set (131) is usually the heaviest part of the burner socket (10), not to mention the weight of the fan (131) and other components. When the heat dissipation fin set (131) is lifted up, the burn-in socket (10) will generate considerable torque, causing the connection mechanism between the base (12) and the cover (13) to withstand considerable force. The circuit board (11) and the base The same is true for the connections between seats (12). After frequent operations, the mechanism of the burn-in socket (10) may be damaged, thereby reducing the service life.

Therefore, it is necessary to develop a burn-in socket that reduces the torque effect during operation to extend the service life of the burn-in socket.

In order to achieve the above purpose, the present invention provides a sliding burn-in socket, which includes: a base fixed to a circuit board; a carrier located above the base and connected to the base via an elastic connection means connected so that the carrier can move vertically relative to the base; a heat dissipation unit located above the carrier and configured to move vertically between a closed position and an open position relative to the base; and a heat dissipation unit A handle is connected to the heat dissipation unit and is operable to move the base vertically between the closed position and the open position. The stage includes a pair of guide rails and a tray for accommodating a device to be tested. The pair of guide rails are connected to the base through the elastic connection means. The tray is connected to the pair of guide rails by a sliding means so that the tray can It slides horizontally relative to the pair of guide rails, and the tray is connected to the handle via a traction means.

In a specific embodiment, when the handle forces the heat dissipation unit to be in the closed position, the handle simultaneously forces the tray to be in a retracted position through the traction means, thereby hiding the tray.

In a specific embodiment, when the handle forces the heat dissipation unit to be in the open position, the handle simultaneously forces the tray to be in an extended position through the traction means, thereby exposing the tray.

In a specific embodiment, the elastic means includes a spring, which is disposed between the base and the pair of guide rails to elastically support the pair of guide rails above the base.

In a specific embodiment, when the handle forces the heat dissipation unit to be in the closed position, the heat dissipation unit presses the carrier onto the base.

In a specific embodiment, when the handle forces the heat dissipation unit to be in the open position, the heat dissipation unit releases the carrier so that the tray of the carrier can slide relative to the pair of guide rails.

In a specific embodiment, the handle has a swing arm and a slot is formed on a surface of the swing arm. A turntable is provided on one side of the heat dissipation unit and a protrusion is formed on a surface of the turntable. The swing arm of the handle The arm is slidably coupled to a protrusion on the turntable of the heat dissipation unit via the slot, so that operation of the handle forces the turntable to deflect and causes the heat dissipation unit to move vertically between the closed position and the open position.

In a specific embodiment, the traction means is a telescopic link. Both ends of the telescopic link are connected to the rotating disk and the tray respectively. The deflection of the rotating disk determines the extension length of the telescopic link.

In a specific embodiment, the surface of the rotating disk is further provided with a pair of stop blocks for determining the rotation range of the telescopic link relative to the rotating disk.

In a specific embodiment, the sliding means is a plurality of rollers, so that the pallet is slidably connected to the pair of guide rails via the rollers.

In a specific embodiment, the sliding burn-in socket further includes: a first connector provided on the base; and a second connector provided on the tray. When the tray is in an extended position relative to the pair of guide rails, the first connector and the second connector are separated and not electrically connected. When the tray is in a retracted position relative to the pair of guide rails, the first connector contacts the second connector to form an electrical connection.

In a specific embodiment, the sliding burn-in socket further includes: a fastener provided on one side of the heat dissipation unit; and a bolt provided on the base. When the heat dissipation unit is in the closed position, the fastener engages with the bolt to lock the heat dissipation unit.

In a specific embodiment, the heat dissipation unit is a fin, a fan, a duct or a combination thereof.

In a specific embodiment, the sliding burn-in socket further includes: a frame fixed on the base and limiting the carrier and the heat dissipation unit above the base. The handle is pivotally connected to the frame, so that the pivoting operation of the handle forces the heat dissipation unit to move between the closed position and the open position, and forces the tray to a retracted position and an extended position relative to the pair of guide rails. slide between.

The present invention also provides an operating method of the sliding burn-in socket, which includes: operating the handle to force the heat dissipation unit to rise from the closed position to the open position to release the carrier; operating the handle to use the traction means Slide the tray to an extended position; place a device under test on the tray; operate the handle to force the tray to slide to a retracted position; and operate the handle to force the heat dissipation unit to drop from the open position to the closed position. , to press the carrier on the base.

The present invention will now be described more fully with reference to the accompanying drawings, in which specific example embodiments are shown by way of illustration. However, the claimed subject matter can be embodied in many different forms, and therefore the construction of the covered or claimed subject matter is not limited to any example embodiments disclosed in this specification; the example embodiments are only for illustration. Likewise, this invention is intended to provide a reasonably broad scope to the claimed subject matter as claimed or covered.

The term "in one embodiment" used in this specification does not necessarily refer to the same specific embodiment, and the term "in other (some/certain) embodiments" used in this specification does not necessarily refer to different specific embodiments. It is intended, for example, that the claimed subject matter includes combinations of all or part of the exemplary embodiments.

The second figure A, the second figure B, the third figure A, the third figure B, the fourth figure A and the fourth figure B show specific embodiments of the sliding burn-in socket of the present invention. The sliding burn-in socket of the present invention mainly includes a base (20), a carrier (30) and a heat dissipation unit (40), wherein the base (20) is electrically connected to a circuit board (not shown), especially Configured as a circuit board carrying multiple burn-in sockets, the carrier (30) is connected to the base (20) via an elastic connection means, and the heat dissipation unit (40) is located above the carrier (20) and is configured to be operable through And the carrier (30) is selectively suppressed.

The base plate (20) can be fixed to the circuit board via known means, such as screws. A bottom portion of the base (20) is provided with a plurality of metal contacts or other connection means for electrically connecting the metal contacts and wires of the circuit board. A top of the base (20) has a substantially flat surface or may be configured to match the carrier (30).

A shell frame (50) is composed of two side walls, which are respectively fixed on both sides of the base (20). The shell frame (50) confines the carrier (30) and the heat dissipation unit (40) to the base (20). above. A shoulder (51) is formed on the inner side of the shell frame (50), and the shoulder (51) and the base (20) define the vertical movement space of the loading platform (30). The frame (50) of this embodiment does not surround the front end (+X direction) and the rear end (-X direction) of the burn-in socket, but the invention is not limited to this.

The rear end (-X direction) of the base (20) is also provided with a first connector (21), which is electrically connected to the metal contacts at the bottom of the base (20) through buried wires, thereby transmitting electrical signals. , as shown in the second picture B.

The carrier (30) is connected to the top of the base (20) via an elastic connection means, so that the carrier (30) must be pressed against the elastic force in order to fit the top of the base (20), as shown in Figure 2A. ; When the carrier (30) does not receive downward pressure, it is elastically biased to float above the base (20) and resist the shoulder (51) of the frame (50), as shown in the third figure A.

The carrier (30) includes a pair of guide rails (31) and a tray (32). As shown in the third figure A, the guide rail (31) is connected to the base (20) via the guide post (33) extending between the base (20) and the shoulder (51), so that the guide rail (31) can move along the The guide column (33) moves vertically relative to the base (20). The guide column (33) may include the elastic connection means, so that the carrier (30) is elastically biased to resist the shoulder (51) when it is not subjected to downward pressure. Alternatively, the elastic connection means can also be an elastic pin (34) extending between the base (20) and the tray (32), which can expand and contract under downward pressure, thereby determining the distance between the platform (30) and the tray (32). Vertical distance between bases (20).

Both sides of the tray (32) are connected to the pair of guide rails (31) by a sliding means. As shown in Figure 3B and Figure 9, a plurality of rollers are provided on both sides of the tray (32), which can roll in the grooves in the guide rail (31), whereby the tray (32) can move relative to the guide rail (31). ) slides horizontally between a retracted position (as in the second picture B) and an extended position (as in the third picture B). Figure 4A shows that the tray (32) is formed with a groove for placing a device under test (T). The bottom surface of the groove is provided with a plurality of metal contacts for electrically connecting the device under test (T) to transmit related test signals.

As shown in the second figure B, when the tray (32) is in the retracted position, the entire tray (32) is located between the base (20) and the heat dissipation unit (40). As shown in Figure 3B, when the tray (32) is in the extended position, the tray (32) extends toward the front end of the socket (+X direction) and exposes the groove, thereby allowing the operator to access the device under test (T ).

A second connector (35) is provided at the rear end (-X direction) of the tray (32), and the second connector (35) is configured to contact the first connector (21) when the tray (32) is in the retracted position. An electrical connection is formed, whereby the second connector (35) can transmit the electrical signal provided by the first connector (21) to the device under test (T) carried by the tray (32). Figure 10 shows a specific embodiment of the first connector (21) and the second connector (35) in the retracted position. In order to be suitable for sliding operation, the first connector (21) is an extension plate provided with a plurality of metal contacts, and the second connector (35) is an extension plate provided with a plurality of elastic metal pins. Thereby, a wireless connection is formed between the base (20), the carrier (30) and the heat dissipation unit (40). The advantage of this configuration is to avoid configuring wires or connectors (such as pin header connectors) that interfere with the sliding mechanism between the base (20) and the carrier (30). Nevertheless, the present invention does not rule out that wired connection can be used instead of wireless connection.

The "first connector" and "second connector" described in this embodiment are not limited to the types shown in the figure, any other types of "first connector" and "second connector" that can be contacted and separated Variations of the present invention should be included. For example, the "first connector" and the "second connector" may be any connectors with male and female connections. Alternatively, either of the "first connector" and the "second connector" may be a contact pad, and the electrical connection is formed by simple contact.

The third figure A shows that the heat dissipation unit (40) has a contact head (41) that extends downward and can reach into the groove of the carrier (30) to contact the top surface of the device under test (T). The heat dissipation unit (40) also includes a heat dissipation fin set (42) and a fan (43). The heat dissipation fin set (42) is thermally conductive and coupled to the contact (41), and the fan (43) is externally mounted on the heat dissipation fin set (42). ) side to provide cooling. Although not shown, those skilled in the art will understand that other thermally conductive components, such as vapor chambers or heat pipes, may be included between the contact head (41) and the heat dissipation fin set (42).

The heat dissipation unit (40) is arranged above the carrier (30) and can move vertically between a closed position (as shown in the second figure A) and an open position (as shown in the third figure A). When in the closed position, the heat dissipation unit (40) sinks and presses the carrier (30) on the base (20), and the contact head (41) can contact the device under test in the carrier (30), ready for testing. Related tests. When in the open position, the heat dissipation unit (40) rises and releases the carrier (30). The carrier (30) is only biased upward by the elastic connection means and is suspended above the base (20).

The heat dissipation unit (40) is still a considerable weight part in this embodiment. According to the above description, it can be seen that the present invention limits the heat dissipation unit (40) to the vertical movement range. Therefore, when the horizontal plane projection center of mass remains unchanged, there will be no torque difference between the heat dissipation unit (40) operating in the closed position and the open position. Of course, There will be no burden on the connecting mechanism.

The second figure A and the third figure A show that the front end of the heat dissipation unit (40) is provided with a fastener (44), and the front end of the base (20) is provided with a bolt (22) extending upward. Referring also to Figures 5A and 5B, the fastener (44) is pivotably connected to the outside of the heat dissipation unit (40), and has an engaging portion at the bottom end. The bolt (22) extends from the top of the base (20), and has an engaging portion at the top. When the heat dissipation unit (40) is in the closed position, the fastener (44) can be operated to engage with the bolt (22), so that the burn-in socket is locked. The fastener (44) can be operated to separate from the bolt (22) to release the heat dissipation unit (40). The engaging portion of the fastener (44) and the bolt (22) may be formed with a slope, so that the fastener (44) and the bolt (22) can engage with each other without manual operation.

The sliding burn-in socket of the present invention also includes a handle (60), which can be manually operated to force the heat dissipation unit (40) to move vertically between the closed position and the open position. The handle (60) is also connected to the pallet (32) via a traction means so that the handle (60) can be manually operated to force the pallet (32) to move between the retracted position and the extended position.

The second picture B and the third picture B show that the handle (60) is connected to the housing frame (50) through a rotating shaft (61), so that the handle (60) can rotate relative to the housing frame (50) according to the rotating shaft (61). . The rotation range of the handle (60) is limited by a step (52) of the housing (50) and the mechanism of the heat dissipation unit (40). When the handle (60) is rotated downward to contact the step (52), the heat dissipation unit (40) is forced into the closed position. When the handle (60) is turned upward, the heat dissipation unit (40) is forced to the open position.

The handle (60) has an elongated swing arm (62) with an extension portion (63) below it, and the extension portion (63) is formed with a slot (64). The swing arm (62) is mechanically connected to the heat dissipation unit (40) via the slot (64) of the extension (63), whereby the handle (60) is operable to force the heat dissipation unit (40) to move vertically.

The eighth figure shows the mechanism provided on the outside of the cooling unit (40), with the housing (50), handle (60) and guide rail (31) removed. A rotating disk (45) is connected to the outside of the heat dissipation unit (40) via a rotating shaft. The turntable (45) in this embodiment has a fan-shaped structure, but the invention is not limited to this. A protrusion (451) is provided on the front end (+X direction) of the turntable (45). Referring back to the second figure B and the third figure B, the turntable (45) is combined with the slit (64) of the extension (63) via the protrusion (451), and the protrusion (451) is limited to the slit (64) Medium slide. When the handle (60) is rotated through operation, the protrusion (451) is pulled to cause the turntable (45) to rotate.

The eighth figure shows that the rotating shaft of the turntable (45) and the tray (32) are connected by the traction means. Specifically, the traction means is a telescopic link (46). One end of the telescopic link (46) is rotatably connected to the rotating shaft of the turntable (45), and the other end is rotatably connected to one side of the tray (32), whereby the heat dissipation unit (40) is pulled by the telescopic link (46) to force the tray ( 32) Move toward the retracted and extended positions.

The rear end (-X direction) of the turntable (45) is also provided with a pair of stop blocks (452), located on both sides of the telescopic link (46), for limiting the movement of the telescopic link (46) relative to the turntable (45). Amplitude of rotation. When in the closed position, the handle (60) forces the heat dissipation unit (40) to sink and the turntable (45) is in the position shown in the eighth figure. At this time, the telescopic link (46) is restricted from extending from the rotation axis of the turntable (45) to the rear end (-X direction), so that the tray (32) is in the retracted position. When in the open position, the handle (60) forces the heat dissipation unit (40) to rise and the turntable (45) rotates from the +X direction to the +Z direction to the position shown in the third figure B. At this time, the rotation path of the protrusion (451) limits the handle (60) from further rotation, and the telescopic link (46) extends from the rotation axis of the turntable (45) in the +X direction in response to the position of the turntable (45), and the The tray (32) is pushed into the extended position. It should be understood that during the process of moving the pallet (32) from the retracted position to the extended position, the telescopic link (46) is first compressed and then released. vice versa.

The sixth figure shows the opening process of the sliding burn-in socket of the present invention. First, operate the fastener (44) to unlock the burn-in socket and release the heat dissipation unit (40). Next, the operating handle (60) forces the heat dissipation unit (40) to rise to release the carrier (30), and at the same time moves the pallet (32) via the pulling means. Continuously turn the handle (60) to force the heat dissipation unit (40) to rise high enough to clear the sliding space of the tray (32). At the same time, the handle (60) continues to push the tray (32) to the extended position through traction means until the test is to be carried out. The device (T) is exposed.

The seventh figure shows the closing process of the sliding burn-in socket of the present invention. First, place the device under test (T) on the tray (32). By operating the handle (60) to force the heat dissipation unit (40) to sink, the handle (60) moves the pallet (32) via the pulling means. Continue to turn the handle (60) to force the heat dissipation unit (40) to press the carrier (30) against the base (20) until the fastener (44) engages the base (20) to lock the burn-in socket.

To sum up, the sliding cover type burn-in socket of the present invention operates the heat dissipation unit in a vertical movement range and cooperates with a sliding mechanism to realize closing and opening of the socket. In addition, the sliding cover type burn-in socket of the present invention uses handle operation to force the heat dissipation unit and the sliding mechanism to start at the same time, which has the advantage of convenient operation.

10: Flip-top burn-in socket 11:Circuit board 12: base 13: cover 131: Cooling fin set 132:Fan 20: base 21:First connector 22:Tie 30: Carrier stage 31: Guide rail 32:Pallet 33:Guide column 34:Elastic pin 35:Second connector 40: Cooling unit 41:Contact head 42: Cooling fin set 43:Fan 44:Fasteners 45:Turntable 451:bulge 452: Stop block 46: Telescopic link 50: Shell frame 51:Shoulder 52:Stairs 60: handle 61:Rotating axis 62: Swing arm 63:Extension 64:Slit T: device under test

The present invention can be further understood with reference to the following drawings and descriptions. Non-limiting and non-exhaustive examples are described with reference to the following figures. The components in the drawings are not necessarily to actual size; the emphasis is on illustrating structure and principles.

The first figure shows the process of opening the cover of a conventional flip-up burn-in socket.

The second figure A shows the front view (closed state) of the sliding cover type burn-in socket of the present invention.

The second picture B shows the side view (closed state) of the sliding cover type burn-in socket of the present invention.

Figure 3A shows the front view (opened state) of the sliding cover type burn-in socket of the present invention.

Figure 3B shows a side view (opened state) of the sliding cover type burn-in socket of the present invention.

Figure 4A shows a perspective view of the sliding cover type burn-in socket of the present invention (opened state).

Figure 4B shows another perspective view (opened state) of the sliding cover type burn-in socket of the present invention.

The fifth figure shows the locking means of the sliding cover type burn-in socket of the present invention.

The sixth figure shows the opening process of the sliding cover type burn-in socket of the present invention.

The seventh figure shows the closing process of the sliding cover type burn-in socket of the present invention.

Figure 8 shows the telescopic connecting rod (closed state) of the sliding cover type burn-in socket of the present invention.

Figure 9 shows the sliding means in the sliding cover type burn-in socket of the present invention (the frame is removed and not shown).

Figure 10 shows the first connector and the second connector (closed state) in the sliding cover type burn-in socket of the present invention.

20: base

31: Guide rail

32:Pallet

40: Cooling unit

43:Fan

44:Fasteners

50: Shell frame

60: handle

T: device under test

Claims (16)

A sliding burn-in socket, including: a base fixed to a circuit board; A carrier is located above the base and is connected to the base via an elastic connection means so that the carrier can move vertically relative to the base; A heat dissipation unit is located above the carrier and is configured to be vertically movable relative to the base between a closed position and an open position; and a handle connected to the heat dissipation unit and operable to move the base vertically between the closed position and the open position; Wherein, the stage includes a pair of guide rails and a tray for accommodating a device to be tested. The pair of guide rails are connected to the base through the elastic connection means. The tray is connected to the pair of guide rails by a sliding means so that the The tray can slide horizontally relative to the pair of guide rails, and the tray is connected to the handle via a traction means. The sliding burn-in socket of claim 1, wherein when the handle forces the heat dissipation unit to be in the closed position, the handle simultaneously forces the tray to a retracted position through the traction means, thereby hiding the tray. The sliding burn-in socket of claim 1, wherein when the handle forces the heat dissipation unit to be in the open position, the handle simultaneously forces the tray to be in an extended position through the traction means, thereby exposing the tray. The sliding burn-in socket of claim 1, wherein the elastic means includes a spring, and the spring is disposed between the base and the pair of guide rails to elastically support the pair of guide rails above the base. The sliding burn-in socket of claim 1, wherein when the handle forces the heat dissipation unit to be in the closed position, the heat dissipation unit presses the carrier onto the base. The sliding burn-in socket of claim 1, wherein when the handle forces the heat dissipation unit to be in the open position, the heat dissipation unit releases the carrier so that the tray of the carrier can slide relative to the pair of guide rails. The sliding burn-in socket of claim 1, wherein the handle has a swing arm and a slot is formed on a surface of the swing arm, a turntable is provided on one side of the heat dissipation unit and a turntable is formed on a surface of the turntable. The swing arm of the handle is slidably combined with the protrusion on the turntable of the heat dissipation unit via the slot, so that the operation of the handle forces the turntable to deflect and causes the heat dissipation unit to move between the closed position and the open position. Move vertically. The sliding burn-in socket of claim 7, wherein the traction means is a telescopic connecting rod. Both ends of the telescopic connecting rod are connected to the rotating disk and the tray respectively. The deflection of the rotating disk determines the telescopic connecting rod. extension length. The sliding burn-in socket of claim 8, wherein the surface of the rotating disk is further provided with a pair of stop blocks for determining the rotation range of the telescopic link relative to the rotating disk. The sliding burn-in socket of claim 8, wherein the sliding means is a plurality of rollers, so that the tray is slidably connected to the pair of guide rails via the rollers. The sliding burn-in socket as described in claim 1 further includes: a first connector provided on the base; and a second connector provided on the tray; Wherein, when the tray is in an extended position relative to the pair of guide rails, the first connector and the second connector are separated and not electrically connected; Wherein, when the tray is in a retracted position relative to the pair of guide rails, the first connector contacts the second connector to form an electrical connection. The sliding burn-in socket as described in claim 1 further includes: A fastener is provided on one side of the heat dissipation unit; and a bolt provided on the base; Wherein, when the heat dissipation unit is in the closed position, the fastener engages with the bolt to lock the heat dissipation unit. The sliding burn-in socket of claim 1, wherein the heat dissipation unit is a fin, an air diffuser, a duct or a combination thereof. The sliding burn-in socket as described in claim 1 further includes: A shell frame is fixed on the base and confines the carrier and the heat dissipation unit above the base; Wherein, the handle is pivotally connected to the frame, so that the pivoting operation of the handle forces the heat dissipation unit to move between the closed position and the open position, and forces the tray to be in a retracted position and an extended position relative to the pair of guide rails. Slide between positions. A method of operating the sliding burn-in socket as described in claim 1, including: operating the handle to force the heat dissipation unit to rise from the closed position to the open position to release the carrier; operating the handle to slide the pallet to an extended position via the traction means; Place a device under test on the tray; operating the handle to force the tray to slide to a retracted position; and The handle is operated to force the heat dissipation unit to drop from the open position to the closed position to press the carrier on the base. The operating method of claim 15, wherein the base is provided with a first connector, the tray is provided with a second connector, and when the tray is in the retracted position, the first connector and the second connector Contact to form an electrical connection.