CN203150786U

CN203150786U - Connecting structure for fixing DB plug

Info

Publication number: CN203150786U
Application number: CN 201320001434
Authority: CN
Inventors: 张世伟; 程国胜; 陈恒留
Original assignee: SHENZHEN JINGFUYUAN TECH Co Ltd
Current assignee: SHENZHEN JINGFUYUAN TECHNOLOGY CO., LTD.
Priority date: 2013-01-05
Filing date: 2013-01-05
Publication date: 2013-08-21
Anticipated expiration: 2023-01-05

Abstract

Disclosed in the utility model is a connecting structure for fixing a DB plug. The connecting structure comprises a housing, a PCB board fixed in the housing cavity, and a DB connector that is arranged at the housing cavity opening and is fixed at the outer end of the PCB board. In addition, the connecting structure also includes a fixed block arranged between the DB connector and the PCB board; and the fixed block is fixedly connected with the housing by screws. According to the utility model, the fixed block with the special structure design is used to replace a fixed hole at the periphery of the DB connector and be fixedly connected with the housing, thereby ensuring the stability of the whole connecting structure. Meanwhile, the complex degree of the housing and the whole size are effectively reduced.

Description

A kind of for the fixing syndeton of DB plug

Technical field

The utility model relates to new forms of energy photovoltaic DC-to-AC converter or similar products field, relates in particular to a kind of for fixing DB(D type serial communication interface) syndeton of plug.

Background technology

Existing DB plug generally adopts flexible cord to connect.The flexible cord two ends are connected with the DB plug respectively, it is used for connecting two units that have the DB socket, wherein plug is to be fixed on the plastic parts, its inner no pcb board or be provided with very little pcb board, simultaneously be provided with two fixing holes at the DB plug, by screwing two screws that pass fixing hole, the DB plug and socket is closely connected.

Very little or when requiring its volume to design very for a short time when in two units one of them, the flexible cord of the DB socket on this unit and connection usefulness is removed, and the plug that has only this moment the DB socket on another unit to be used for being located on the said equipment unit inserts.

The DB socket pin arranged with clubfoot, the db connector of clubfoot contact pin is conducive to this structural design.DB plug and pcb board and element can design in a cavity in such cases, require DB plug fixation, reliable.If utilize the fixing hole on the elbow DB plug to fix db connector, then shell need be designed to two parts at least, can make overall structure become complicated like this.Because have the butt joint slit to exist, and be unfavorable for outdoor waterproof requirement; If utilize the contact pin of elbow DB and pcb board to fix, the DB plug of Xuan Fuing fixes by contact pin in other words, because of contact pin and pcb board all stressed, thereby can influence the reliability of db connector and pcb board, though this kind design can reach the requirement on the function, unreasonable.

The utility model content

The purpose of this utility model is the defective that exists at above-mentioned prior art, proposes a kind of for the fixing syndeton of DB plug.

The technical solution adopted in the utility model is, design a kind of for the fixing syndeton of DB plug, comprise a shell, be fixed on the pcb board in the outer shell cavity, with be located at the shell accent and be fixed on a db connector of pcb board outer end, also comprise the fixed block that is arranged between described db connector and the pcb board, described fixed block is fixedlyed connected by screw with shell.

Described shell is the box-like cavity of an end opening, and its openend holder that stretches out is respectively equipped with a trepanning post on the inwall of described holder both sides, and trepanning post inboard is provided with double-screw bolt; The internal chamber wall of described holder is provided with a positioning edge.

Described fixed block is the laminated structure that a middle part surface outwards protrudes, and its middle part is provided with first fixing hole with db connector profile coupling, and the described first fixing hole both sides are a protruding guide vane end stop respectively; The surface of described fixed block two end boss is provided with second fixing hole, and the outer ledge of flange is provided with first groove that cooperates with described trepanning post, and the upper edge of flange is provided with second groove that cooperates the location with described positioning edge.

One end of described pcb board is provided with the projection that cooperates with described fixed block middle part projection.

The stitch of described db connector is that 90 degree are crooked, and described stitch is fixedlyed connected with pcb board.

Compared with prior art, the fixing hole that the utility model adopts the fixed block of special construction design to substitute the db connector periphery is fixedlyed connected with shell, has guaranteed whole steadiness, effectively reduces the complexity of shell simultaneously, has dwindled whole volume.

Description of drawings

Fig. 1 is the explosive view of the utility model one embodiment;

Fig. 2 is the assembling schematic diagram of middle DB9 connector embodiment illustrated in fig. 1, fixed block and pcb board;

Fig. 3 is the stereogram of middle DB9 connector embodiment illustrated in fig. 1;

Fig. 4 is the stereogram of middle fixed block embodiment illustrated in fig. 1.

Embodiment

Below in conjunction with drawings and Examples utility model is described in detail.

Fig. 1 is the explosive view of the utility model one embodiment, and what adopt in the present embodiment is the DB9 connector.As seen from Figure 1, the utility model comprises shell 1, is fixed on the pcb board 2 in the outer shell cavity, and be located at the shell accent and be fixed on a DB9 connector 3 of pcb board outer end, also comprising the fixed block 4 that is arranged between DB9 connector and the pcb board, this fixed block is fixedlyed connected by screw with shell.

As shown in Figure 1, shell 1 is the box-like cavity of an end opening, its opening outbound port that stretches out is hexagonal holder 11, and the inboard that the inwall of this holder both sides drift angle is equipped with for trepanning post 12, the two trepanning posts that connect the DB9 socket is respectively equipped be used to the double-screw bolt 13 that is connected and fixed piece 4; Be provided with a positioning edge 14 that is used for limiting described fixed block at the upper left side of holder internal chamber wall simultaneously.

Fig. 4 is the stereogram of middle fixed block embodiment illustrated in fig. 1.With reference to Fig. 1, Fig. 4, fixed block 4 is the laminated structure that a middle part surface outwards protrudes, and its middle part is provided with first fixing hole 41 with DB9 connector 3 profiles coupling, and this fixing hole can limit the degree of freedom of the four direction up and down of DB9 connector; At the protruding guide vane end stop 42 of described first fixing hole dual-side difference, the fixed head 32 engagement limits DB9 connectors of itself and DB9 connector periphery are toward the degree of freedom of interior motion, the DB9 connector is stressed when the DB9 plug insertion socket, and this moment is to the not influence of contact pin 33 of pcb board and DB9 connector; Be provided with on the surface of fixed block two end boss simultaneously and cooperate the second fixedly connected fixing hole 43 with double-screw bolt 13 in the shell, the outer ledge of flange is provided with first groove 44 that cooperates with trepanning post 12, and the flange upper edge is provided with second groove 45 that cooperates the location with the positioning edge 14 on the outer casing inner wall.

Fig. 2 is the assembling schematic diagram of middle DB9 connector embodiment illustrated in fig. 1, fixed block and pcb board; Fig. 3 is the stereogram of middle DB9 connector embodiment illustrated in fig. 1.See that in conjunction with Fig. 1, Fig. 2 and Fig. 3 DB9 connector 3 one ends pass first fixing hole 41 on the fixed block 4, the stitch 31 that 90 degree are crooked on it and the fixing welding of pcb board 2 one ends, this end of pcb board is provided with the projection 21 that cooperates with fixed block 4 middle part projections; When the DB9 plug was extracted from socket, the contact pin 33 in the DB9 connector and the projection 21 of pcb board were stressed along pcb board face direction, because resistance is less when extracting, so very little to the influence of pcb board and DB9 connector when extracting.

When producing assembling, at first DB9 connector 3 stitch ends are passed first fixing hole 41 of fixed block 4, and with its stitch 31 and the pcb board 2 fixing welding of being fixed in the shell 1, adopting screw that fixed block is fixed on the shell then, a product of the present utility model has so just assembled moulding.

In use, with the socket on the DB9 plug insertion unit, the trepanning post 12 that adopts screw to pass on the shell 1 is then fixedlyed connected with the unit at socket place.

Above-described embodiment only is used for explanation a kind of embodiment of the present utility model.Should be pointed out that for the person of ordinary skill of the art, under the prerequisite that does not break away from the utility model design, can also make some distortion and variation, these distortion and variation all should belong to protection range of the present utility model.

Claims

1. one kind is used for the fixedly syndeton of DB plug, comprise a shell (1), be fixed on the pcb board (2) in the outer shell cavity, with be located at the shell accent and be fixed on the db connector (3) of pcb board outer end, it is characterized in that: also comprise the fixed block (4) that is arranged between described db connector and the pcb board, described fixed block is fixedlyed connected by screw with shell.

2. as claimed in claim 1 for the fixing syndeton of DB plug, it is characterized in that: described shell (1) is the box-like cavity of an end opening, its openend holder (11) that stretches out, be respectively equipped with a trepanning post (12) on the inwall of described holder both sides, trepanning post inboard is provided with double-screw bolt (13); The internal chamber wall of described holder is provided with a positioning edge (14).

3. as claimed in claim 2 for the fixing syndeton of DB plug, it is characterized in that: described fixed block (4) is the laminated structure that a middle part surface outwards protrudes, its middle part is provided with first fixing hole (41) with db connector (3) profile coupling, and the described first fixing hole both sides are a protruding guide vane end stop (42) respectively; The surface of described fixed block two end boss is provided with second fixing hole (43), the outer ledge of flange is provided with first groove (44) that cooperates with described trepanning post (11), and the upper edge of flange is provided with second groove (45) that cooperates the location with described positioning edge (14).

4. as claimed in claim 3 for the fixing syndeton of DB plug, it is characterized in that: an end of described pcb board (2) is provided with the projection (21) that cooperates with described fixed block (4) middle part projection.

5. as claimed in claim 4 for the fixing syndeton of DB plug, it is characterized in that: the stitch (31) of described db connector (3) is that 90 degree are crooked, and described stitch is fixedlyed connected with pcb board.