CN204885518U

CN204885518U - DDR4 type DRAM protection switching tester

Info

Publication number: CN204885518U
Application number: CN201520690972.8U
Authority: CN
Inventors: 张光荣
Original assignee: Individual
Current assignee: Individual
Priority date: 2015-09-08
Filing date: 2015-09-08
Publication date: 2015-12-16
Anticipated expiration: 2025-09-08

Abstract

The utility model discloses a DDR4 type DRAM protection switching tester, including memory groove connector and contact circuit PCB board, wherein memory groove connector includes shell fragment terminal and plastic groove, and be equipped with switching golden finger, circuit and through the pad of circuit with the golden finger one -to -one of transferring, the pad is connected with shell fragment terminal one -to -one is electric on the contact circuit PCB board, and the height of contact circuit PCB board is the 2nd U type fixed bayonet's of DDR4 DRAM a height and DDR4 type DRAM U type fixed bayonet's height poor. The utility model discloses a control contact circuit PCB plate height degree makes its and DDR4 type DRAM U type fixed bayonet installation phase -match to can guarantee on the one hand the utility model discloses an impedance is enough little, ensures DDR4 type DRAM process the utility model discloses still can normally work after the switching, on the other hand guarantees the utility model discloses can cooperate DDR4 type DRAM firmly to install the memory inslot at the mainboard.

Description

DDR4 type memory bar protection switching test device

Technical field

The utility model relates to computer equipment field, is related specifically to a kind of DDR4 type memory bar protection switching test device.

Background technology

Computer main board is after producing, in order to ensure that its quality and technical parameter can reach requirement, manufacturer needs on the memory slot of mainboard, insert memory bar and carries out functional test, originally namely people often test in direct memory slot memory bar directly being inserted computer main board, but due to the workload of test large, the number of times of directly plug is once increase, the structure such as golden finger on easy damage memory bar, and cause the damage of memory bar, even cause the damage of mainboard, considerably increase production cost.Nowadays, in order to avoid this situation, people usually can be installed memory bar protection switching test device additional and transfer on memory bar, then test, and repeatedly plug, and the life-span are longer because memory protect test bench can bear.

But nowadays DDR (DualDataRate, i.e. Double Data Rate synchronous DRAM) memory bar of 4 types, if use traditional memory bar protection switching test device to transfer, because the transmission frequency of DDR4 type memory bar is high, its instructions for use is also higher, and traditional memory bar protects the transmission line in switching test device long, impedance is large, when making DDR4 type memory bar carry out transfer of data by convential memory bar protection switching test device, signal attenuation can be there is, make test unstable or failed, and convential memory bar protection switching test device and DDR4 type memory bar are when being together arranged on the memory bar mounting groove of mainboard, its installation reliability is low, easily come off.

Utility model content

The technical problems to be solved in the utility model be to provide a kind of on mainboard plug convenient, DDR4 type memory bar can be applicable to, reliable, stability is strong, the DDR4 type memory bar protection switching test device that the life-span is long.

According to an aspect of the present utility model; provide a kind of DDR4 type memory bar protection switching test device; comprise memory slot connector and contact circuit pcb board; wherein memory slot connector comprises shell fragment terminal and plastic cement groove; contact circuit pcb board is provided with switching golden finger, circuit and by circuit and switching golden finger pad one to one; pad is electrically connected with shell fragment terminal one_to_one corresponding, and the height of contact circuit pcb board is the difference of the height of DDR4 type memory bar second breach and the height of DDR4 type memory bar first breach.

The beneficial effects of the utility model are: the utility model utilizes memory slot connector to install DDR4 type memory bar, and utilize contact circuit pcb board to transfer to DDR4 type memory bar, thus DDR4 type memory bar is linked on mainboard by the utility model test, and control the height of contact circuit pcb board, it is made to coordinate the U-shaped fixing bayonet socket height of DDR4 type memory bar, thus can ensure that impedance of the present utility model is enough little on the one hand, guarantee that DDR4 type memory bar still can normally work after switching, can ensure that the utility model can coordinate DDR4 type memory bar to be fixedly mounted in the memory slot of mainboard on the other hand.

In some embodiments, the height of memory bar protection test socket is 10.40mm-10.60mm, and the height of contact circuit pcb board is 6.90mm-7.10mm.Usual DDR4 type memory bar is provided with the U-shaped fixing bayonet socket of DDR4 type memory bar first for installing with the earclip of memory slot on mainboard and the U-shaped fixing bayonet socket of DDR4 type memory bar second, the height of the U-shaped fixing bayonet socket of DDR4 type memory bar first is between 6.90mm to 7.10mm, the height of the U-shaped fixing bayonet socket of DDR4 type memory bar second is between 13.80mm to 14.20mm, therefore the height of DDR4 type memory bar protection switching test device is set between 10.40mm to 10.60mm, contact circuit pcb board height is set between 6.90mm to 7.10mm, this can ensure that DDR4 type memory bar protection switching test device is after installation DDR4 type memory bar, the height of its contact circuit pcb board and the height of the U-shaped fixing bayonet socket of DDR4 type memory bar first and between 13.80mm to 14.20mm, namely equal with the height of the U-shaped fixing bayonet socket of DDR4 type memory bar second, make DDR4 type memory bar protect switching test device can fasten by the earclip of mainboard memory slot and fix, and ensure that the impedance of DDR4 type memory bar protection switching test device is enough little, ensure that its reliability connected simultaneously.

In some embodiments, plastic cement groove is provided with gathering sill, and wherein gathering sill and memory bar match.Gathering sill can limit the position that memory bar inserts DDR4 type memory bar protection switching test device, prevents it from offseting, effectively can reduce the loss of memory bar golden finger, also improve the life-span of memory bar protection test socket.

In some embodiments, DDR4 type memory bar protection switching test device comprises memory bar containment vessel, and wherein memory bar containment vessel is movably arranged on memory slot connector.Containment vessel arrange can relay testing time exposed memory bar, cause damage to prevent memory bar because of collision or the situation such as wearing and tearing.

In some embodiments, one end of memory bar containment vessel is provided with blend stop.The setting of blend stop prevents memory bar from protecting switching test device to slide in test process, guarantees stable testing.

In some embodiments, containment vessel is provided with louvre.The heat produced when memory bar can be allowed to work that arranges of louvre is discharged by louvre in good time, improves the useful life of memory bar.

Accompanying drawing explanation

Structural representation when Fig. 1 is the DDR4 type memory bar protection switching test device use of a kind of execution mode of the utility model.

Fig. 2 is the structural representation of the front view of the DDR4 type memory bar protection switching test device of a kind of execution mode of the utility model.

Fig. 3 is the structural representation of the vertical view of the DDR4 type memory bar protection switching test device shown in Fig. 2.

Fig. 4 is the structural representation of the contact circuit pcb board shown in Fig. 1.

Fig. 5 is the structural representation of the memory bar containment vessel shown in Fig. 1.

Fig. 6 is the structural representation of the rearview of the memory bar containment vessel shown in Fig. 5.

Fig. 7 is the structural representation of the left view of the memory bar containment vessel shown in Fig. 5.

Fig. 8 is the structural representation of the right view of the memory bar containment vessel shown in Fig. 5.

Embodiment

Below in conjunction with accompanying drawing, the utility model is described in further detail.

With reference to figure 1-Fig. 4, DDR4 type memory bar protection switching test device of the present utility model, comprise memory slot connector 1 and contact circuit pcb board 2, the utility model is for installing common DDR4 type memory bar 4.Memory slot connector 1 comprises shell fragment terminal 11 and plastic cement groove 12, plastic cement groove 12 be provided with the gathering sill 121 matched with the size of DDR4 type memory bar 4, and be processed with the groove corresponding with DDR4 type memory bar 4 at the internal face of plastic cement groove 12, shell fragment terminal 11 is placed in groove one by one, contact circuit pcb board 2 is provided with switching golden finger 21, circuit and by circuit and switching golden finger 21 pad 22 one to one, pad 22 welds with the lower end one_to_one corresponding of shell fragment terminal 11, can be electrically connected.

In addition, DDR4 type memory bar 4 is provided with the U-shaped fixing bayonet socket 41 of the DDR4 type memory bar first matched with the earclip of the memory bar mounting groove on mainboard and the U-shaped fixing bayonet socket 42 of DDR4 type memory bar second, the height of the U-shaped fixing bayonet socket 41 of its DDR4 type memory bar first is between 6.90mm to 7.10mm, and the height of the U-shaped fixing bayonet socket 42 of DDR4 type memory bar second is between 13.80mm to 14.20mm.And height of the present utility model is between 10.40mm to 10.60mm, the height of contact circuit pcb board 2 is between 6.90mm to 7.10mm, and namely the height of contact circuit pcb board 2 is the difference that DDR4 type memory bar second lacks the height of U-shaped fixing bayonet socket 42 and the height of the U-shaped fixing bayonet socket 41 of DDR4 type memory bar first.

With reference to figure 5-Fig. 8; the utility model also comprises memory bar containment vessel 3, and memory bar containment vessel 3 is provided with multiple louvre 32, and its one end is provided with blend stop 31; the dimension D DR4 type memory bar 4 of memory bar containment vessel 3 matches, and can be movably arranged on memory slot connector 1.

During utility model works; first DDR4 type memory bar 4 is installed in the gathering sill 121 of memory slot connector 1; after pierce in memory bar containment vessel 3 from one end again; now; plastic cement groove 12 can hide the golden finger of DDR4 type memory bar 4 completely; ensure that reliable and its golden finger of protection of its transmission is not damaged, then allow the switching golden finger 21 of contact circuit pcb board 2 aim at memory bar mounting groove on mainboard, the utility model is inserted.

After inserting utility model, because its contact circuit pcb board 2 Lower Half branch contacts with the bottom of the memory bar mounting groove on mainboard, and the first half branch of contact circuit pcb board 2 contacts with the bottom of DDR4 type memory bar 4, therefore the padded DDR4 type memory bar 4 of contact circuit pcb board 2 meeting, the i.e. height of the U-shaped fixing bayonet socket 41 of DDR4 type memory bar first, the height of contact circuit pcb board 2 can be added, the height of the U-shaped fixing bayonet socket 41 of DDR4 type memory bar first is made to increase as between 13.80mm to 14.20mm, so now the height of the U-shaped fixing bayonet socket 41 of DDR4 type memory bar first is equal with the height of the U-shaped fixing bayonet socket 42 of original DDR4 type memory bar second, if and the memory bar mounting groove on original mainboard directly inserts DDR4 type memory bar 4, its earclip can fasten the U-shaped fixing bayonet socket 42 of DDR4 type memory bar second of DDR4 type memory bar 4, therefore now the utility model is inserted together with memory bar, earclip can be allowed to fasten the U-shaped fixing bayonet socket 41 of DDR4 type memory bar first of DDR4 type memory bar 4, test in the memory bar mounting groove making the utility model and DDR4 type memory bar 4 reliably can be arranged on mainboard.

After mainboard has been tested, only need the earclip of the memory bar mounting groove unclamped on mainboard, just the utility model and DDR4 type memory bar 4 all can be taken out, and after taking-up, can be inserted on other one piece of mainboard at once and test.The utility model can coordinate DDR4 type memory bar to be fixed on well in the memory bar mounting groove of mainboard, and improves the functional reliability of DDR4 type memory bar, extends the long service life of DDR4 type memory bar.

Above-described is only execution modes more of the present utility model.For the person of ordinary skill of the art, under the prerequisite not departing from the utility model creation design, can also make some distortion and improvement, these all belong to protection range of the present utility model.

Claims

1.DDR4 type memory bar protection switching test device, it is characterized in that, comprise memory slot connector (1) and contact circuit pcb board (2), described memory slot connector (1) comprises shell fragment terminal (11) and plastic cement groove (12), described contact circuit pcb board (2) is provided with switching golden finger (21), circuit and by circuit with switching golden finger (21) pad (22) one to one, described pad (22) is electrically connected with shell fragment terminal (11) one_to_one corresponding, the height of described contact circuit pcb board (2) is the difference of the height of the U-shaped fixing bayonet socket of DDR4 type memory bar second (42) and the height of the U-shaped fixing bayonet socket (41) of DDR4 type memory bar first.

2. DDR4 type memory bar protection switching test device according to claim 1, it is characterized in that, the height of described memory bar protection test socket is 10.40mm-10.60mm, and the height of described contact circuit pcb board (2) is 6.90mm-7.10mm.

3. DDR4 type memory bar protection switching test device according to claim 1, it is characterized in that, described plastic cement groove (12) is provided with gathering sill (121), and described gathering sill (121) and DDR4 type memory bar match.

4. DDR4 type memory bar protection switching test device according to claim 1, it is characterized in that, comprise memory bar containment vessel (3), described memory bar containment vessel (3) is movably arranged on memory slot connector (1).

5. DDR4 type memory bar protection switching test device according to claim 4, it is characterized in that, described memory bar containment vessel (3) one end is provided with blend stop (31).

6. DDR4 type memory bar protection switching test device according to claim 4, it is characterized in that, described memory bar containment vessel (3) is provided with louvre (32).