Display card core detection jig

Abstract

The utility model discloses a graphics card core detection jig, which belongs to the graphics card heat dissipation technical field, and comprises a cooling module, a heat dissipation cover plate and a spiral hold-down device, the heat dissipation cover plate abuts against a limiting tray in a hooking manner through a hand buckle, the bottom of the cooling module is tightly attached to a PCB, cooling liquid can be introduced into the cooling module, and the spiral hold-down device is arranged on the cooling module. Therefore, heat on the PCB is absorbed and transferred. On the other hand, a spiral pressing tool is further arranged on the heat dissipation cover plate, the bottom end of the spiral pressing tool penetrates through the heat dissipation cover plate to abut against the cooling module, the side portion of the spiral pressing tool and the heat dissipation cover plate form a spiral pair, and pretightening force is formed to act on the cooling module. Therefore, during use, the display card and the cooling module can be tightly attached through pre-tightening force generated by the spiral pressing tool and tensioning and limiting by the hand buckle, so that the heat conduction efficiency is remarkably improved, and the problem that the cooling effect is poor due to the fact that the display card and the water cooling assembly are not tightly attached is solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a display card heat dissipation technical field, concretely relates to a display card core detection fixture. BACKGROUND

[0002] The display card is GPU, and it is one of the basic components of computer, and is mainly used for converting and driving the information that needs to be displayed in the computer system to display and providing the progressive or interlaced scanning signal to the display, thereby controlling the correct display of the display.

[0003] Because the display card is in the operation state for a long time when working, the display card chip is prone to generate a large amount of heat, in order to prevent the display card from being damaged due to the temperature being too high, a cooling assembly is generally arranged on the display card, and the existing display card cooling is air cooling and water cooling.

[0004] The heat dissipation effect of air cooling is generally lower than that of water cooling, but the existing water cooling assembly cannot be closely attached to the display card, and is inconvenient to disassemble and replace, so that the heat dissipation efficiency is limited, and therefore the applicant proposes a new technical scheme to improve the cooling effect of the display card. SUMMARY

[0005] Therefore, the utility model provides a display card core detection fixture to solve the problem that the cooling effect is not good due to the fact that the display card and the water cooling assembly are not closely attached in the prior art.

[0006] In order to achieve the above purpose, the utility model provides the following technical scheme:

[0007] The utility model discloses a display card core detection fixture, which comprises:

[0008] The cooling module is tightly attached to the bottom of the PCB circuit board, the PCB circuit board fixes the display card through the pin, and the PCB circuit board is fixed on the limiting tray;

[0009] The heat dissipation cover plate is hingedly connected with the hand buckle on both sides, the hand buckle is suitable for being hooked and abutting with the limiting tray, and the heat dissipation cover plate is located at the top of the cooling module;

[0010] The spiral pressing tool passes through the heat dissipation cover plate and abuts against the cooling module at the bottom end, and the side of the spiral pressing tool and the heat dissipation cover plate form a screw pair and form a pre-tightening force on the cooling module.

[0011] Further, the cooling module comprises:

[0012] The heat exchanger is provided with a liquid inlet and a liquid outlet at the end, and a screw hole is arranged at the top;

[0013] The heat absorption groove is arranged inside the heat exchanger and communicates with the liquid inlet and the liquid outlet simultaneously.

[0014] The sealing plate is fixed on the screw hole by a fastener and tightly contacts with a sealing ring arranged on the outer edge of the heat absorption groove.

[0015] The cooling liquid enters the heat absorption groove from the liquid inlet and flows out from the liquid outlet.

[0016] Further, the heat absorption groove is provided with a plurality of partitions, and an S-shaped flow channel is formed by the partitions, and two ends of the S-shaped flow channel communicate with the liquid inlet and the liquid outlet respectively.

[0017] Further, the heat exchanger is arranged with heat exchange fins which contact with the PCB circuit board.

[0018] Further, the limiting tray comprises:

[0019] The disc body is provided with a plurality of positioning holes on the top, and the positioning holes are fixedly connected with the PCB circuit board.

[0020] The graphics card slot is sleeved on the graphics card position of the PCB circuit board, and the graphics card slot is provided with a silicone grease retaining groove on the periphery.

[0021] Further, the heat dissipation cover plate comprises:

[0022] The lock plate is provided with a hinge position on both sides, and the hand buckle is elastically hinged on the hinge position,

[0023] The pre-tightening threaded hole is arranged in the middle of the lock plate, and the bottom of the lock plate is provided with a pressing plate.

[0024] The heat dissipation stepped hole is arranged on the pressing plate and is aligned with the pre-tightening threaded hole.

[0025] The pre-tightening threaded hole is adapted to be screwed into the screw press, and the heat dissipation stepped hole is compressed by the screw press.

[0026] Further, the screw press comprises a screw cap, a stud, a thrust bearing and a heat dissipation channel, the pre-tightening threaded hole is in threaded transmission connection with the stud, the top of the stud is provided with a screw cap, and the bottom of the stud is provided with a thrust bearing, the screw cap, the stud and the thrust bearing are coaxial, and the thrust bearing abuts against the heat dissipation stepped hole, the heat dissipation stepped hole communicates with the heat dissipation channel, and the heat dissipation channel penetrates through the screw cap, the stud and the thrust bearing.

[0027] Further, the heat dissipation channel is installed with an electric fan.

[0028] The utility model has the advantages that:

[0029] The utility model discloses a display card core detection tool, and the display card is cooled through the cooling module in the water cooling mode, simultaneously, the pre -tightening force is produced to the spiral pressure tool, and the heat dissipation cover plate and the limit tray are connected by hand buckle, thereby making the display card and cooling module can be closely attached, thereby improving the heat conduction efficiency, make the device structure more stable, compared with prior art, has the advantages such as convenient installation, good heat dissipation effect, solve the problem of the poor cooling effect due to the insufficient close attachment of display card and water cooling assembly. BRIEF DESCRIPTION OF DRAWINGS

[0030] Figure 1 The utility model provides fast tool solid drawing for providing the utility model;

[0031] Figure 2 The utility model provides spiral pressure tool solid drawing for providing the utility model;

[0032] Figure 3 The utility model provides heat dissipation cover plate solid drawing for providing the utility model;

[0033] Figure 4 The utility model provides limit tray solid drawing for providing the utility model;

[0034] Figure 5 The utility model provides cooling module solid drawing for providing the utility model;

[0035] Figure 6 The utility model provides heat exchanger solid drawing for providing the utility model;

[0036] Figure 7 The utility model provides PCB circuit board solid drawing for providing the utility model;

[0037] In the drawing: 1 cooling module;11 heat exchanger;12 liquid inlet;13 heat absorption groove;14 liquid outlet;15 screw hole;16 sealing plate;17 sealing ring;2 hand buckle;3 heat dissipation cover plate;31 lock plate;32 hinged position;33 pre -tightening screw hole;34 pressing plate;35 heat dissipation step hole;4 limit tray;41 tray body;42 display card slot;43 silicone grease retention groove;44 positioning hole;5 spiral pressure tool;51 screw cap;52 stud;53 thrust bearing;54 heat dissipation channel;6 PCB circuit board;7 heat exchange fin;8 partition. DETAILED DESCRIPTION

[0038] The following specific embodiments illustrate the embodiments of the utility model, and those skilled in the art can easily understand other advantages and effects of the utility model from the contents disclosed in the specification, obviously, the described embodiments are a part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the scope of protection of the utility model.

[0039] Please refer to Figures 1-7 The utility model discloses a display card core detection fixture can fix display card and cool display card, and the following will be with the mode of specific embodiment to the technical scheme of this,

[0040] In the utility model discloses a specific embodiment, such as Figure 1 The main structure of display card core detection fixture includes cooling module 1, heat dissipation cover plate 3 and spiral pressing tool 5, specifically, the both sides of heat dissipation cover plate 3 are hinged with hand buckle 2, and hand buckle 2 can be connected with limiting tray 4 and resist, wherein heat dissipation cover plate 3 is located at the top of cooling module 1, and the bottom of cooling module 1 is attached to PCB circuit board 6, such as Figure 7 And cooling module 1 can pass in cooling liquid, thereby absorbing and transferring the heat on PCB circuit board 6. On the other hand, PCB circuit board 6 is fixed on limiting tray 4, and the limiting tray 4 is filled with silicon grease covering the display card to facilitate heat conduction, and in order to make cooling module 1 closely attached to the display card, spiral pressing tool 5 is also arranged on heat dissipation cover plate 3, the bottom end of spiral pressing tool 5 passes through heat dissipation cover plate 3 and abuts against cooling module 1, and the side of spiral pressing tool 5 and heat dissipation cover plate 3 form a screw pair and form a pre-tightening force on cooling module 1, the pre-tightening force of spiral pressing tool 5 can make the pressure between hand buckle 2 and limiting tray 4 greater, thereby avoiding the separation of heat dissipation cover plate 3 and limiting tray 4, in the embodiment, the display card is fixed by pin on PCB circuit board 6, the display card only needs to be directly installed for testing, and can be reused, compared with the prior art, the form of pcb package display card detection can obviously shorten the detection period, and the cooling module 1 can be more closely contacted with the display card, thereby improving the efficiency of heat conduction.

[0041] In one embodiment of the utility model, cooling module 1 includes heat exchanger 11 and heat absorption groove 13, wherein heat exchanger 11 is of metal material, has good heat conductivity, and the end of heat exchanger 11 is provided with liquid inlet 12 and liquid outlet 14, and liquid inlet 12 and liquid outlet 14 are communicated with heat absorption groove 13 arranged inside heat exchanger 11, specifically, cooling liquid can be introduced into heat absorption groove 13 by liquid inlet 12 and liquid outlet 14, thereby removing heat through cooling liquid to achieve the effect of cooling the display card.

[0042] In the embodiment, such as Figure 5 And Figure 6 The top of heat exchanger 11 is provided with screw hole 15, and the sealing ring 17 along the outer edge of heat absorption groove 13, the sealing plate 16 is fixed on screw hole 15 by fastener and closely attached to the sealing ring 17 arranged along the outer edge of heat absorption groove 13, thereby achieving the sealing effect to avoid cooling liquid leakage.

[0043] In some embodiments, specifically, the heat absorption groove 13 is provided with a plurality of partitions 8, and the S-shaped flow channel is formed by the plurality of partitions 8, and the two ends of the S-shaped flow channel are communicated with the liquid inlet 12 and the liquid outlet 14 respectively, so that the cooling liquid stays in the heat absorption groove 13 for more time to fully absorb heat, and the cooling effect of the graphics card is improved.

[0044] In one specific embodiment of the present application, as shown in Figure 4 , the limiting tray 4 comprises a disc body 41 and a graphics card slot 42, the graphics card slot 42 is sleeved on the position of the graphics card of the PCB circuit board 6, a silicone grease retaining groove 43 is arranged on the periphery of the graphics card slot 42, and silicone grease is covered in the silicone grease retaining groove 43 for guiding the heat emitted by the graphics card. On this basis, the heat exchanger 11 is arranged with heat exchange fins 7, and the heat exchange fins 7 are in contact with the PCB circuit board 6.

[0045] In this embodiment, since the silicone grease is covered on the graphics card, the heat exchange fins 7 can contact the PCB circuit board 6 through the silicone grease, compared with the mode of contacting the graphics card in a plane, more heat can be guided outwards, so that the heat dissipation effect of the graphics card is improved.

[0046] In one specific embodiment of the present application, as shown in Figure 3 , the heat dissipation cover plate 3 comprises a locking plate 31, a pre-tightening threaded hole 33 and a heat dissipation stepped hole 35, wherein the two sides of the locking plate 31 are provided with hinge positions 32, and the hand buckle 2 is elastically hinged on the hinge positions 32, and the hand buckle 2 is connected with the disc body 41 in a hooking mode. The pre-tightening threaded hole 33 is arranged at the center of the locking plate 31, and the pre-tightening threaded hole 33 is suitable for screwing into the screw press 5, so as to form a screw pair. On the other hand, the heat dissipation stepped hole 35 is arranged on the pressing plate 34, the heat dissipation stepped hole 35 is aligned with the pre-tightening threaded hole 33, and the heat dissipation stepped hole 35 is extruded by the screw press 5, and then the pressing plate 34 can be pushed, so that the cooling module 1 is tightly combined with the graphics card.

[0047] Specifically, as shown in Figure 2 , in some embodiments, the screw press 5 comprises a rotating cover 51, a stud 52, a thrust bearing 53 and a heat dissipation channel 54, the pre-tightening threaded hole 33 is in threaded transmission connection with the stud 52, the stud 52 is provided with the rotating cover 51 at the top and the thrust bearing 53 at the bottom, and the pre-tightening force can be generated by rotating the rotating cover 51 to drive the stud 52 to rotate, so as to push the thrust bearing 53 to push the pressing plate to compress the cooling module 1. In terms of position structure, the rotating cover 51, the stud 52 and the thrust bearing 53 are coaxial, the thrust bearing 53 abuts against the heat dissipation stepped hole 35, the heat dissipation stepped hole 35 is communicated with the heat dissipation channel 54, and the heat dissipation channel 54 penetrates through the rotating cover 51, the stud 52 and the thrust bearing 53, so that the heat dissipation channel 54 can also avoid heat accumulation, so as to further improve the heat dissipation efficiency.

[0048] In the embodiment, the electric fan is installed in the heat dissipation channel 54, and the electric fan is powered from the PCB circuit board 6 to drive the fan to rotate, promote air flow, and improve the heat dissipation effect.

[0049] The basic principle and main features of the present application and the advantages of the present application are shown and described above. The components mentioned in the present application are common techniques in the existing field, which should be understood by the technicians in the industry. The present application is not limited by the above embodiments, and the above embodiments and descriptions in the specification are only to illustrate the principle of the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the claimed present application. The scope of protection of the present application is defined by the appended claims and their equivalents.

Claims

1. A graphics card core detection jig, characterized in that, include: The cooling module (1) is attached to the bottom of the PCB circuit board (6), which is fixed to the graphics card by pins and is fixed to the limiting tray (4). The heat dissipation cover (3) has hand buckles (2) hinged on both sides. The hand buckles (2) are adapted to hook and abut against the limiting tray (4), and the heat dissipation cover (3) is located on top of the cooling module (1). The bottom end of the spiral press (5) passes through the heat dissipation cover (3) and abuts against the cooling module (1). The side of the spiral press (5) and the heat dissipation cover (3) form a spiral pair and form a pre-tightening force on the cooling module (1).

2. The graphics card core detection jig of claim 1, wherein, The cooling module (1) includes: The heat exchanger (11) has an inlet (12) and an outlet (14) at its end and a screw hole (15) at its top. A heat absorption tank (13) is disposed inside the heat exchanger (11), and the heat absorption tank (13) is simultaneously connected to the liquid inlet (12) and the liquid outlet (14); The sealing plate (16) is fixed to the screw hole (15) by fasteners and is in close contact with the sealing ring (17) arranged on the outer edge of the heat absorption groove (13); The coolant enters the heat absorption tank (13) from the inlet (12) and then flows out from the outlet (14).

3. The graphics card core detection jig of claim 2, wherein, The heat absorption tank (13) is provided with several partitions (8), and the partitions (8) form an S-shaped flow channel. The two ends of the S-shaped flow channel are respectively connected to the liquid inlet (12) and the liquid outlet (14).

4. The graphics card core detection jig of claim 3, wherein, The heat exchanger (11) has heat exchange fins (7) arranged at the bottom, and the heat exchange fins (7) are in contact with the PCB circuit board (6).

5. The graphics card core detection jig of claim 1, wherein, The limiting tray (4) includes: The disk body (41) has several positioning holes (44) on the top, and the positioning holes (44) are fixedly connected to the PCB circuit board (6); A graphics card slot (42) is fitted onto the graphics card position on the PCB circuit board (6), and a thermal paste retention groove (43) is provided around the graphics card slot (42).

6. The graphics card core detection jig of claim 1, wherein, The heat dissipation cover (3) includes: The locking plate (31) has hinge positions (32) on both sides, and the hand buckle (2) is elastically hinged to the hinge positions (32). A pre-tightening threaded hole (33) is provided in the middle of the locking plate (31), and a pressure plate (34) is provided at the bottom of the locking plate (31); A heat dissipation stepped hole (35) is provided on the pressure plate (34) and aligned with the pre-tightening threaded hole (33); The pre-tightening threaded hole (33) is adapted to be screwed into the spiral press (5) and to be pressed by the spiral press (5) to compress the heat dissipation stepped hole (35).

7. The graphics card core detection jig of claim 6, wherein, The screwing device (5) comprises a screw cap (51), a screw post (52), a thrust bearing (53) and a heat dissipation channel (54), the pre-tightening threaded hole (33) is in threaded transmission connection with the screw post (52), the screw post (52) is provided with the screw cap (51) at the top and the thrust bearing (53) at the bottom, the screw cap (51), the screw post (52) and the thrust bearing (53) are coaxial, and the thrust bearing (53) is in abutment with the heat dissipation stepped hole (35), the heat dissipation stepped hole (35) is in communication with the heat dissipation channel (54), and the heat dissipation channel (54) penetrates through the screw cap (51), the screw post (52) and the thrust bearing (53).

8. The graphics card core detection jig of claim 7, wherein, An electric fan is installed in the heat dissipation channel (54).

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