Modular circuit plate and power distribution unit that safe insulation performance strengthens
Technical field
The utility model relates to a kind of power distribution unit and board structure of circuit, and particularly a kind of pcb board and end power distribution unit of needing has corresponding relation to realize minute position and control or the modular circuit plate that the safe insulation performance of metrological operation strengthens and the power distribution unit with this modular circuit plate.
Background technology
Referring to Figure 1A-1C, Figure 1A-1C is circuit board mounting structure in prior art.Wherein, in power distribution unit (PDU), the mode that printed circuit board (PCB) (pcb board) is arranged on product is generally: use for example aluminium alloy panel of metal shell 20(that hexagonal insulated column and screw be fixed on product by printed circuit board (PCB) 10) on, and at pcb board 10, use insulation paster 30 or insulation board 40 around, to meet the creepage distance of product.The shortcoming of this mounting means is: insulation board does not have and pcb board forms integral body, has unavoidably gap, thereby do not reach the object of insulation in installation process.In addition, insulation paster, in the process of installing, once there is breakage, also cannot reach the object of insulation.Meanwhile, fitting insulating panels and stickup insulation paster have reduced the production efficiency of product, have improved cost, and have reduced the security performance of product, have increased and have manufactured the amount of labour of installing.
Prior art
10 printed circuit board (PCB)s
20 metal shells
30 insulation pasters
40 insulation boards
The utility model
1 metal shell
2 modular circuit plates
21 first insulation shells
22 second insulation shells
23 module boards
24 circuit board installation portions
25 metal shell installation portions
26 connecting portions
261 plug together groove
262 plug together flange
3 power supply upper plates
4 end closures
5 control panels
Utility model content
Technical problem to be solved in the utility model is to provide a kind of modular circuit plate of safe insulation performance enhancing and has the power distribution unit of this modular circuit plate, the problems referred to above that exist to solve prior art.
To achieve these goals, the utility model provides a kind of modular circuit plate, wherein, comprise the first insulation shell, the second insulation shell and module board, described the first insulation shell and described the second insulation shell interconnect to form an accommodation space, on described the first insulation shell and described the second insulation shell, be provided with circuit board installation portion, described module board is arranged in described accommodation space by described circuit board installation portion.
Above-mentioned modular circuit plate, wherein, described circuit board installation portion is the groove being arranged on described the first insulation shell and described the second insulation shell inwall.
Above-mentioned modular circuit plate, wherein, described groove is symmetricly set on respectively on described the first insulation shell and described the second insulation shell, and the width of described groove is greater than the base plate thickness of described module board, and the base plate of described module board is fastened in described groove.
Above-mentioned modular circuit plate, wherein, described the first insulation shell and described the second insulation shell are symmetrical arranged, the cross section of described the first insulation shell and described the second insulation shell is L-type, and the bottom end face of described L-type is provided with the connecting portion being connected with described the second insulation shell for described the first insulation shell.
Above-mentioned modular circuit plate, wherein, described connecting portion is plug-connection structure, comprise plug together groove and with the described flange that plugs together that plugs together groove adaptation, described in plug together groove with described in plug together flange corresponding being arranged on described the first insulation shell and described the second insulation shell respectively.
Above-mentioned modular circuit plate, wherein, is also respectively arranged with metal shell installation portion on described the first insulation shell and described the second insulation shell, and described metal shell installation portion is arranged on respectively on the outer wall of described the first insulation shell and described the second insulation shell.
Above-mentioned modular circuit plate, wherein, described metal shell installation portion is the sliding tray along described the first insulation shell and described the second insulation shell length direction setting.
Above-mentioned modular circuit plate, wherein, described metal shell installation portion is the slip flange along described the first insulation shell and described the second insulation shell length direction setting.
Above-mentioned modular circuit plate, wherein, described sliding tray or slip flange are symmetricly set on respectively on the outer wall of described the first insulation shell and described the second insulation shell.
In order to realize better above-mentioned purpose, the utility model also provides a kind of power distribution unit, comprises metal shell and at least one modular circuit plate, and described modular circuit plate is arranged in described metal shell, wherein, described modular circuit plate is above-mentioned modular circuit plate.
Beneficial functional of the present utility model is:
1, insulation module housing has played the effect of insulation protection between module board and metal shell, and the creepage distance of product is effectively improved, and has effectively protected module board;
2, between modular assembly, mutually plug together, it is convenient to install; Modular assembly and product shell adopt and are slidably installed, and have improved production efficiency, have reduced cost;
3, the groove of insulation module housing has limited the activity of circuit board, can effectively prevent that module board from deviating from from insulation module housing, has guaranteed insulation effect, has met the requirement of security performance.
Below in conjunction with the drawings and specific embodiments, the utility model is described in detail, but not as to restriction of the present utility model.
Accompanying drawing explanation
Figure 1A-1C is circuit board mounting structure in prior art;
Fig. 2 is the power distribution unit structural representation of the utility model one embodiment;
Fig. 3 is the explosive view of Fig. 2;
Fig. 4 is the modular circuit plate structure schematic diagram of the utility model one embodiment;
Fig. 5 A is the explosive view of Fig. 4;
Fig. 5 B is the I portion enlarged drawing of Fig. 5 A;
Fig. 6 A is the insulation shell structural representation of the utility model one embodiment;
Fig. 6 B is the cross-sectional view of Fig. 6 A;
Fig. 7 A is the modular circuit plate assembling schematic diagram of the utility model one embodiment;
Fig. 7 B is the cross-sectional view of Fig. 7 A.
Wherein, Reference numeral
Embodiment
Below in conjunction with accompanying drawing, structural principle of the present invention and operation principle are described in detail:
Referring to Fig. 2-Fig. 3, Fig. 2 is the power distribution unit structural representation of the utility model one embodiment, the explosive view that Fig. 3 is Fig. 2.Power distribution unit of the present utility model (PDU), it can be for example electric power source distribution device, transducer or other power supply output systems etc., in the present embodiment, this power distribution unit comprises metal shell 1 and at least one modular circuit plate 2, described modular circuit plate 2 is arranged in described metal shell 1, the cross section of this metal shell 1 is U-shaped structure, its upper end is provided with power supply upper plate 3, on this power supply upper plate 3, be provided with jack, two ends at metal shell 3 are enclosed in this modular circuit plate 2 in a confined space by end closure 4, on this metal shell 3, also control panel 5 can be installed, to realize a minute position, control or metrological operation.The mutual alignment relation of the composition of other parts of this power distribution unit, structure, function and various piece and annexation etc. are more ripe prior art, therefore do not repeat at this, only its modular circuit plate 2 are described in detail below.
Referring to Fig. 4-5B, Fig. 4 is the modular circuit plate structure schematic diagram of the utility model one embodiment, the explosive view that Fig. 5 A is Fig. 4, and Fig. 5 B is the I portion enlarged drawing of Fig. 5 A.Modular circuit plate 2 of the present utility model, comprise the first insulation shell 21, the second insulation shell 22 and module board 23, described the first insulation shell 21 and described the second insulation shell 22 interconnect to form an accommodation space, on described the first insulation shell 21 and described the second insulation shell 22, be provided with circuit board installation portion 24, described module board 23 is arranged in described accommodation space by described circuit board installation portion 24.
Referring to Fig. 6 A, 6B, Fig. 6 A is the insulation shell structural representation of the utility model one embodiment, and Fig. 6 B is the cross-sectional view of Fig. 6 A.In the present embodiment, described circuit board installation portion 24 is preferably the groove being arranged on described the first insulation shell 21 and described the second insulation shell 22 inwalls.Wherein, described groove can be symmetricly set on respectively on described the first insulation shell 21 and described the second insulation shell 22, and the width of described groove is greater than the base plate thickness of described module board 23, and the base plate of described module board 23 is fastened in described groove.Simultaneously, described the first insulation shell 21 and described the second insulation shell 22 are preferably symmetrical arranged, the cross section of described the first insulation shell 21 and described the second insulation shell 22 is preferably L-type, and the bottom end face of described L-type is provided with the connecting portion 26 being connected with described the second insulation shell 22 for described the first insulation shell 21.In the present embodiment, described connecting portion 26 is preferably plug-connection structure, comprise plug together groove 261 and with described plug together groove 261 adaptations plug together flange 262, described plug together groove 261 with described in plug together flange 262 corresponding being arranged on described the first insulation shell 21 and described the second insulation shell 22 respectively, as long as the two is oppositely arranged to be beneficial to and plugs together installation, it is specifically arranged on the first insulation shell 21 or the second insulation shell 22 and is not limited.
Referring to Fig. 7 A, 7B, Fig. 7 A is the modular circuit plate assembling schematic diagram of the utility model one embodiment, and Fig. 7 B is the cross-sectional view of Fig. 7 A.In order to improve packaging efficiency, on described the first insulation shell 21 and described the second insulation shell 22, also can be respectively arranged with metal shell installation portion 25, described metal shell installation portion 25 is separately positioned on the outer wall of described the first insulation shell 21 and described the second insulation shell 22.Wherein, described metal shell installation portion 25 can be along the sliding tray of described the first insulation shell 21 and described the second insulation shell 22 length directions settings.Or described metal shell installation portion 25 is the slip flange along described the first insulation shell 21 and described the second insulation shell 22 length directions settings.Described sliding tray or slip flange are preferably symmetricly set on respectively on the outer wall of described the first insulation shell 21 and described the second insulation shell 22.
The utility model is integrated into circuit board and plastic insulation cover the mode of one integral module, as circuit board module block assembly, is connected with metal shell again.Circuit board module block assembly after assembling becomes an integral body in metal shell, and relative position is fixed, and can make circuit board from insulating cover, not deviate from.
Certainly; the utility model also can have other various embodiments; in the situation that not deviating from the utility model spirit and essence thereof; those of ordinary skill in the art are when making various corresponding changes and distortion according to the utility model, but these corresponding changes and distortion all should belong to the protection range of the appended claim of the utility model.