High-speed connector for hard disk

Abstract

The invention discloses a high-speed connector for a hard disk. The high-speed connector comprises a shell, a PCB (Printed Circuit Board), a first module, a second module, a third module and a fourth module, the shell is provided with an insertion cavity with a forward opening; the PCB is arranged in the insertion cavity, and a plurality of first contact parts are arranged on the two surfaces of the PCB; the first module is arranged on the shell, the second module and the third module are both arranged at the rear end of the upper surface of the PCB and are both welded and conducted with the corresponding first contact parts, and the fourth module is arranged at the rear end of the lower surface of the PCB and is welded and conducted with the corresponding first contact parts. A PCB is selected to replace a traditional tongue plate structure, the PCB is arranged in an insertion cavity, the two surfaces of the PCB are each provided with a plurality of first contact parts, and the design that multiple metal layers used for transmitting electric signals are arranged in the PCB, the multiple metal layers are arranged at intervals in the vertical direction and the multiple metal layers are arranged in the vertical direction is matched. The high-frequency connector can provide more stable and stronger high-frequency transmission capability for the connector, thereby meeting the requirements of products.

Description

Technical Field

[0001] The invention relates to the technology of connector field, in particular to a high-speed connector for hard disk. Background Art

[0002] Electrical connectors provide electrical connections between different electronic systems through conductive terminals, thereby achieving signal and / or power transmission. One type of electrical connector is an "electrical connector for storage drives", which is configured to provide industry standard interfaces such as SFF-8639 to establish electrical connections between storage drives such as hard disk drives (HDDs), solid-state drives (SSDs), optical disk drives (ODDs) and circuit boards such as backplanes, midplanes, and drive carriers. This type of electrical connector generally includes a plug connector and a socket connector that mate with each other. The plug connector is configured to be mounted to a circuit board, and the socket connector is configured to connect the storage drive to the plug connector. In this way, the electrical connector consisting of the plug connector and the socket connector can establish an electrical connection between the storage drive and the circuit board to achieve signal and / or power transmission.

[0003] With the widespread application and promotion of connectors, current products have higher and higher requirements for the high-speed transmission capability of hard disk connectors, but the high-speed transmission capability of current hard disk connectors is relatively poor and difficult to meet product requirements. Therefore, it is necessary to improve the existing high-speed connectors for hard disks. Summary of the invention

[0004] In view of this, the present invention aims at the deficiencies in the prior art, and its main purpose is to provide a high-speed connector for hard disks, which can effectively solve the problem that the existing high-speed transmission capability of hard disk connectors is poor and difficult to meet product requirements.

[0005] To achieve the above purpose, the present invention adopts the following technical solutions:

[0006] A high-speed connector for a hard disk comprises a housing, a PCB board, a first module, a second module, a third module and a fourth module; the housing has an insertion cavity with an opening facing forward; the PCB board is arranged in the insertion cavity, and both surfaces of the PCB board are provided with a plurality of first contact portions, and multiple layers of metal layers for transmitting electrical signals are arranged in the PCB board, and the multiple layers of metal layers are arranged at intervals up and down; the first module is arranged on the housing, the second module and the third module are both arranged at the rear end of the upper surface of the PCB board and are both welded and connected to the corresponding first contact portions, and the fourth module is arranged at the rear end of the lower surface of the PCB board and is welded and connected to the corresponding first contact portions.

[0007] As a preferred embodiment, the first module includes a first base body and a plurality of first terminals, the first base body extends from the shell, the plurality of first terminals are arranged on the surface of the first base body, each first terminal includes a second contact portion and a first welding portion integrally formed and connected, the second contact portion is exposed on the surface of the first base body, and the first welding portion extends outward from the shell.

[0008] As a preferred solution, the second module and the third module are respectively located on both sides of the first module, the second module includes a second seat body and a plurality of second terminals, the second seat body is arranged at the rear end of the upper surface of the PCB board, the plurality of second terminals are all arranged on the second seat body, each second terminal includes a third contact portion and a second welding portion integrally formed and connected, the third contact portion is welded and connected to the corresponding first contact portion, and the second welding portion extends outward from the shell; the third module includes a third seat body and a plurality of third terminals, the third seat body is arranged at the rear end of the upper surface of the PCB board, the plurality of third terminals are all arranged on the third seat body, each third terminal includes a fourth contact portion and a third welding portion integrally formed and connected, the fourth contact portion is welded and connected to the corresponding first contact portion, and the third welding portion extends outward from the shell.

[0009] As a preferred solution, the fourth module includes a fourth base body and multiple fourth terminals. The fourth base body is arranged at the rear end of the lower surface of the PCB board, and the multiple fourth terminals are all arranged on the fourth base body. Each fourth terminal includes a fifth contact portion and a fourth welding portion that are integrally connected. The fifth contact portion is welded and connected to the corresponding first contact portion, and the fourth welding portion extends outward from the shell.

[0010] As a preferred solution, the first welding portion, the second welding portion, the third welding portion and the fourth welding portion all extend backwards out of the shell to facilitate welding with the external control panel.

[0011] As a preferred solution, a through fixing hole is opened at the rear end of the PCB board, and the fixing holes are multiple and arranged at intervals on the left and right. The second module has a first fixing column, the third module has a second fixing column, and the fourth module has a third fixing column. The first fixing column, the second fixing column, and the third fixing column are inserted into the corresponding fixing holes and fixed, so that the second module, the third module, and the fourth module are assembled with the PCB board more firmly and reliably.

[0012] As a preferred solution, a positioning column extends downward from the bottom surface of the shell, so that the connector and the external control board can be assembled more accurately.

[0013] As a preferred solution, both sides of the shell are provided with slots, and fixing parts are arranged in the slots. The fixing feet of the fixing parts extend downwardly out of the slots. The design of the fixing parts can firmly and reliably fix the connector and the external control board together.

[0014] Compared with the prior art, the present invention has obvious advantages and beneficial effects. Specifically, it can be seen from the above technical solution that:

[0015] By using a PCB board to replace the traditional tongue plate structure and setting the PCB board in the insertion cavity, multiple first contact parts are set on both surfaces of the PCB board, and multiple layers of metal layers for transmitting electrical signals are set in the PCB board. The multiple metal layers are arranged in an upper and lower interval. The design of multiple metal layers can provide the connector with more stable and stronger high-frequency transmission capability, thus meeting product requirements.

[0016] In order to more clearly illustrate the structural features and effects of the present invention, the present invention is described in detail below in conjunction with the accompanying drawings and specific embodiments: BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of an assembly perspective view of a preferred embodiment of the present invention;

[0018] Figure 2 It is a schematic three-dimensional assembly diagram of another angle of a preferred embodiment of the present invention;

[0019] Figure 3 is an exploded view of a preferred embodiment of the present invention;

[0020] Figure 4 is a cross-sectional view of a preferred embodiment of the present invention;

[0021] Figure 5 An exploded view of a PCB board in a preferred embodiment of the present invention.

[0022] Description of the accompanying drawings:

[0023] 10. Shell 11. Insertion cavity

[0024] 12. Positioning column 13. Slot

[0025] 14. Fixing parts 141. Fixing feet

[0026] 20. PCB board 21. first contact portion

[0027] 22. Metal layer 23. Fixing hole

[0028] 30. First module 31. First seat

[0029] 32. first terminal 321. second contact portion

[0030] 322, first welding portion 40, second module

[0031] 41. Second seat 42. Second terminal

[0032] 421, third contact portion 422, second welding portion

[0033] 43. First fixing column 50. Third module

[0034] 51. third seat 52. third terminal

[0035] 521, fourth contact portion 522, third welding portion

[0036] 53. Second fixing column 60. Fourth module

[0037] 61. Fourth seat body 62. Fourth terminal

[0038] 621, fifth contact portion 622, fourth welding portion

[0039] 63. The third fixed column. DETAILED DESCRIPTION

[0040] Please refer to Figures 1 to 5 As shown, it shows the specific structure of a preferred embodiment of the present invention, including a housing 10, a PCB board 20, a first module 30, a second module 40, a third module 50 and a fourth module 60.

[0041] The shell 10 has an insertion cavity 11 that opens forward. In the present embodiment, a positioning column 12 extends downward from the bottom surface of the shell 10, so that the connector and the external control board can be assembled more accurately. Slots 13 are provided on both sides of the shell 10, and fixing members 14 are provided in the slots 13. The fixing legs 141 of the fixing members 14 extend downward from the slots 13. The design of the fixing members 14 can firmly and reliably fix the connector and the external control board together.

[0042] The PCB board 20 is arranged in the insertion cavity, and multiple first contact portions 21 are arranged on both surfaces of the PCB board 20. Multiple layers of metal layers 22 for transmitting electrical signals are arranged in the PCB board 20, and the multiple layers of metal layers 22 are arranged at intervals up and down; in this embodiment, a through fixing hole 23 is opened at the rear end of the PCB board 20, and the fixing holes 23 are multiple and arranged at intervals left and right.

[0043] The first module 30 is arranged on the housing 10, the second module 40 and the third module 50 are both arranged at the rear end of the upper surface of the PCB board 20 and are both welded and connected with the corresponding first contact portion 21, and the fourth module 60 is arranged at the rear end of the lower surface of the PCB board 20 and is welded and connected with the corresponding first contact portion 21; specifically, the first module 30 includes a first seat body 31 and a plurality of first terminals 32, the first seat body 31 extends out of the housing 10, the plurality of first terminals 32 are all arranged on the surface of the first seat body 31, each first terminal 32 includes a second contact portion 321 and a first welding portion 322 integrally formed and connected, the second contact portion 311 is exposed on the surface of the first seat body 31 The first soldering portion 312 extends outward from the housing 10; the second module 40 and the third module 50 are respectively located on both sides of the first module 30, the second module 40 includes a second seat body 41 and a plurality of second terminals 42, the second seat body 41 is arranged at the rear end of the upper surface of the PCB board 20, the plurality of second terminals 42 are all arranged on the second seat body 41, each second terminal 42 includes a third contact portion 421 and a second soldering portion 422 integrally formed and connected, the third contact portion 421 is soldered and connected with the corresponding first contact portion 21, and the second soldering portion 422 extends outward from the housing 10; the third module 50 includes a third seat body 51 and a plurality of third terminals 52, the third seat body 5 1 is arranged at the rear end of the upper surface of the PCB board 20, the plurality of third terminals 52 are all arranged on the third seat body 51, each of the third terminals 52 includes a fourth contact portion 521 and a third welding portion 522 which are integrally formed and connected, the fourth contact portion 521 is welded and connected with the corresponding first contact portion 21, and the third welding portion 522 extends outward from the housing 10; the fourth module 60 includes a fourth seat body 61 and a plurality of fourth terminals 62, the fourth seat body 61 is arranged at the rear end of the lower surface of the PCB board 20, the plurality of fourth terminals 62 are all arranged on the fourth seat body 61, each of the fourth terminals 62 includes a fifth contact portion 621 and a fourth welding portion 622 which are integrally formed and connected, the fifth contact portion 621 is welded and connected with the corresponding first contact portion 21, and the fourth welding portion 622 extends outward from the shell 10; in the present embodiment, the first welding portion 322, the second welding portion 422, the third welding portion 522 and the fourth welding portion 622 all extend backward from the shell 10 to facilitate welding with the external control board; and the second module 40 has a first fixing column 43, the third module 50 has a second fixing column 53, and the fourth module 60 has a third fixing column 63, and the first fixing column 43, the second fixing column 53, and the third fixing column 63 are inserted into the corresponding fixing hole 23 for fixing, so that the second module 40, the third module 50, the fourth module 60 and the PCB board 20 are assembled more firmly and reliably.

[0044] The preparation process of this embodiment is described in detail as follows:

[0045] First, multiple terminals are stamped and formed, and then the multiple terminals are placed in different injection molds respectively, and the second module 40, the third module 50 and the fourth module 60 are injection molded. Then, the second module 40, the third module 50 and the fourth module 60 are snap-fitted and fixed on the PCB board 20, and the first fixing column 43, the second fixing column 53, and the third fixing column 63 are inserted into the corresponding fixing hole 23 for fixation, and the third contact portion 421, the fourth contact portion 521, and the fifth contact portion 621 are all welded to the corresponding first contact portion 21 for conduction, and then placed in the corresponding injection mold, and a new injection molding is performed to form the housing 10, and finally, the first terminal 32 is inserted into the first seat body 31 for fixation.

[0046] The design focus of the present invention is: by selecting a PCB board to replace the traditional tongue plate structure, and setting the PCB board in the insertion cavity, a plurality of first contact parts are set on both surfaces of the PCB board, and then a plurality of metal layers for transmitting electrical signals are set in the PCB board, and the plurality of metal layers are arranged in an upper and lower interval. The design of the plurality of metal layers can provide the connector with a more stable and stronger high-frequency transmission capability, thereby meeting the product requirements.

[0047] The above description is only a preferred embodiment of the present invention and does not limit the technical scope of the present invention. Therefore, any slight modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A high-speed connector for a hard disk, characterized in that: The invention comprises a shell, a PCB board, a first module, a second module, a third module and a fourth module; the shell has an insertion cavity with an opening facing forward; the PCB board is arranged in the insertion cavity, and a plurality of first contact portions are arranged on both surfaces of the PCB board, and a plurality of metal layers for transmitting electrical signals are arranged in the PCB board, and the plurality of metal layers are arranged at intervals up and down; the first module is arranged on the shell, the second module and the third module are both arranged at the rear end of the upper surface of the PCB board and are both welded and connected with the corresponding first contact portions, and the fourth module is arranged at the rear end of the lower surface of the PCB board and is welded and connected with the corresponding first contact portions.

2. The high-speed connector for a hard disk according to claim 1, characterized in that: The first module includes a first base body and a plurality of first terminals. The first base body extends from the shell. The plurality of first terminals are arranged on the surface of the first base body. Each first terminal includes a second contact portion and a first welding portion integrally formed and connected. The second contact portion is exposed on the surface of the first base body, and the first welding portion extends outward from the shell.

3. The high-speed connector for a hard disk according to claim 2, characterized in that: The second module and the third module are respectively located on both sides of the first module, the second module includes a second seat body and a plurality of second terminals, the second seat body is arranged at the rear end of the upper surface of the PCB board, the plurality of second terminals are all arranged on the second seat body, each second terminal includes a third contact portion and a second welding portion integrally formed and connected, the third contact portion is welded and connected to the corresponding first contact portion, and the second welding portion extends outward from the shell; the third module includes a third seat body and a plurality of third terminals, the third seat body is arranged at the rear end of the upper surface of the PCB board, the plurality of third terminals are all arranged on the third seat body, each third terminal includes a fourth contact portion and a third welding portion integrally formed and connected, the fourth contact portion is welded and connected to the corresponding first contact portion, and the third welding portion extends outward from the shell.

4. The high-speed connector for a hard disk according to claim 3, characterized in that: The fourth module includes a fourth base body and a plurality of fourth terminals. The fourth base body is arranged at the rear end of the lower surface of the PCB board. The plurality of fourth terminals are all arranged on the fourth base body. Each fourth terminal includes a fifth contact portion and a fourth welding portion that are integrally connected. The fifth contact portion is welded and connected to the corresponding first contact portion, and the fourth welding portion extends outward from the shell.

5. The high-speed connector for a hard disk according to claim 4, characterized in that: The first welding portion, the second welding portion, the third welding portion and the fourth welding portion all extend rearwardly out of the housing.

6. The high-speed connector for a hard disk according to claim 1, characterized in that: The rear end of the PCB board is provided with a through fixing hole, and the fixing holes are arranged in a plurality at intervals on the left and right sides. The second module has a first fixing column, the third module has a second fixing column, and the fourth module has a third fixing column. The first fixing column, the second fixing column, and the third fixing column are inserted into the corresponding fixing holes for fixing.

7. The high-speed connector for a hard disk according to claim 1, characterized in that: A positioning column extends downward from the bottom surface of the shell.

8. The high-speed connector for a hard disk according to claim 1, characterized in that: Slots are provided on both sides of the shell, and fixing pieces are arranged in the slots, and fixing legs of the fixing pieces extend downwardly out of the slots.

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