CN207677310U - A kind of molten formula bus duct tapping unit of knife - Google Patents
A kind of molten formula bus duct tapping unit of knife Download PDFInfo
- Publication number
- CN207677310U CN207677310U CN201721732235.5U CN201721732235U CN207677310U CN 207677310 U CN207677310 U CN 207677310U CN 201721732235 U CN201721732235 U CN 201721732235U CN 207677310 U CN207677310 U CN 207677310U
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- China
- Prior art keywords
- babinet
- bus duct
- switch
- fuse
- tapping unit
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Abstract
Formula bus duct tapping unit is melted the utility model discloses a kind of knife, including babinet, the switch with knifeshaped fuse that is arranged in babinet, switch with knifeshaped fuse are equipped with fuse；Babinet offers the opening for assembling switch with knifeshaped fuse, and the operation handle of switch with knifeshaped fuse protrudes out babinet.It is protected using fuse, the open circuit of user terminal when a short circuit occurs is failure to actuate, and fuse blows cut-out branch's thing road in tapping unit does not influence the normal operation of other floors, and reduces electrical fire incident, keeps distribution system Global Macros more perfect.
Description
Technical field
The utility model is related to a kind of power Transmission main line power distribution equipments, melt formula bus duct tap more particularly, to a kind of knife
Unit.
Background technology
China's entry into the World Trade Organization one, economic and modernization construction are rapidly developed, large-scale engineering construction,
The management of quality seriously disconnects, and the annual electrical fire in China had been more than 100,000 in recent years, and electrical fire accounts for fire incident
More than 30%, electrically fiery point accounts for 3% or so of a fire incident to developed countries, and accounting China of electrical fire is the flourishing gateway of a country
10 times of country, the loss of great life and property is brought to the country and people.The design of China's architectural electricity is all selected most
Conservative, state-of-the-art product, the cost of project inputs, far beyond European and American developed countries.Big electrical fire accident is put into than other
It is more, our thinking should be worth.
In existing distribution system, normal defencive function has overload, short circuit, remaining leakage current, under-voltage, thunder and lightning
Deng.In a normal distribution system, some have been more than six grades of protections to low-pressure end to least significant end electricity consumption at least three-level protective,
Row are such as:High residential building, after 10kV transformers become 400V low pressure.There are the frame circuit breaker that level-one is total, low-voltage power distribution room output
To floor, that busbar main line is protected in switchgear house has level-one frame or the breaker of plastic housing again, in busbar main line branch to each
Floor has level-one breaker of plastic casing, the master switch into electric meter box of floor in the tapping unit being branched off from floor again
It is level-one breaker of plastic casing again, sent to indoor from ammeter box from branch has level-one miniature circuit breaker again, until house lead in case has level-one again
There is level-one breaker at the master switch of house lead in power load end.The power supply plan of bus duct shares seven grades of protections, the confession of cable
Electric scheme also has six grades of protections.Under the protection of so much repetition, breaker is not jumped when why short circuit occurs for also many engineerings,
Some directly jump master switch, and reason has at 2 points：Construction quality supervision is out of control：Design system not science.
Network analysis, the main protection of breaker are short-circuit protection, overload protection, some band under-voltage protections, remaining leakage
Electric current protection etc. has whole defencive functions before bus duct, behind also have other three in addition to under-voltage
Overload, short circuit, the protection work(to leak electricity, every grade of whole has the defencive function of overload and short circuit, therefore does not have branch single with cable
Protection in member.
There are many breaker brand currently on the market, have many product open circuits that can only do isolation and use, do not have overload, short
Road defencive function, some good brand fake products are again more, and the low tender price unit in charge of construction profit-push of engineering maximizes, then add quality prison
Pipe is again weak, and product inferior accounts for the advantage in market, thus breaker quality it is difficult to ensure that.
The breaker of normal high-quality, the performance of the breaking capacity of short-circuit protection can not show a candle to fuse, in American-European countries
And developed country, there is one to be protected to two-level distribution fuse in the distribution system on every road, has high breaking molten in systems
Disconnected device, when breaker is motionless when a short circuit occurs, centainly cutting is disconnected for fuse, and reduces the incidence of electrical fire, makes system
Configuration is more perfect, and the cost of fuse is also below breaker.According to China's currently existing scheme, tapping unit is all using breaker
When, when tapping unit and the protection electric appliance of end are all failure to actuate when a short circuit occurs, there are two types of may：The enough big jumps of short circuit current
Master switch；Short circuit current can not less drive master switch to act, especially it is single-phase over the ground when, if failing to act, will produce length
The fire incident probability of time sparking, initiation is very big, and the metal shell and ground connection main line of bus duct all generate high voltage and jeopardize
To personal safety.Breaker is failure to actuate there are short circuit current too conference is stuck, and electric current is too small can not to drive breaker actuation.
In a power distribution system, bus duct is done has internal breaker in mains system tapping unit, and cable is done in mains system
Branch does not configure breaker using coupling box, because, in the floor branch each floor in close place there are one batch meter, in batch meter
Its standby defencive function of a breaker equipped with master switch, the power supply plan floor of bus duct equally there are one batch meter, because
Protection electric appliance in this bus duct tapping unit is not essential.
In original scheme, it is provided with breaker in tapping unit, stolen stealing possibility is also easy to, if user pulls down
The breaker of bus duct tapping unit connects power load line in the leading-out terminal of breaker and just realizes theft electric energy.Original mother
Wire casing tapping unit is all protected using disconnected device device, and babinet is used for welding technique.It needs to be surface-treated after welding, beat, pickling,
Spraying or roasting seven all generation environments pollute.
Utility model content
In order to overcome the deficiencies of the prior art, the purpose of this utility model is to provide a kind of knives to melt formula bus duct tap list
Member is protected using fuse, and the open circuit of user terminal when a short circuit occurs is failure to actuate, the fuse blows cut-out point in tapping unit
The roads Zhi Shi, do not influence the normal operation of other floors, and reduce electrical fire incident, keep distribution system Global Macros completeer
It is kind.
The utility model be solve its technical problem the technical solution adopted is that：
A kind of knife melts formula bus duct tapping unit, including babinet, the switch with knifeshaped fuse that is arranged in babinet, switch with knifeshaped fuse assembly
There is fuse；Babinet offers the opening for assembling switch with knifeshaped fuse, and the operation handle of switch with knifeshaped fuse protrudes out babinet.
Preferably, there are three fuses for the switch with knifeshaped fuse setting.
Preferably, the babinet is provided with the skewer seat for connecting bus duct, the skewer seat be also connected with switch with knifeshaped fuse into
Line end.
Preferably, the babinet is spliced.
Preferably, the babinet includes two side plates, the upper cover of connecting lateral plate and lower cover.
Preferably, the side plate is provided with the sliding slot for being clamped upper cover and lower cover.
Preferably, the side plate is aluminum alloy material formed by extrusion and tension.
Preferably, the upper cover and lower cover are coloured picture steel plate machine-shaping.
Preferably, the babinet is connected with the support element for installing switch with knifeshaped fuse.
Preferably, the babinet is provided with outlet hole.
A kind of knife that the utility model uses melts formula bus duct tapping unit, has the advantages that：Tapping unit is set
It is equipped with the switch with knifeshaped fuse with fuse, ensures have short circuit breaking protection, branched line not to interfere with bus duct between main line and branch
Power supply to other branched lines, security of system is more perfect, effectively reduces fire incident.
Description of the drawings
Fig. 1 is the structural schematic diagram of the utility model；
Fig. 2 is the exploded view of the utility model；
Fig. 3 is the structural schematic diagram of the utility model babinet；
Fig. 4 is the structural schematic diagram of the utility model side plate and support element；
Fig. 5 is the structural schematic diagram of cover on the utility model；
Fig. 6 is the structural schematic diagram of cover under the utility model；
Fig. 7 is the structural schematic diagram of the utility model switch with knifeshaped fuse；
Fig. 8 is the decomposition diagram of the utility model switch with knifeshaped fuse；
Fig. 9 is the structural schematic diagram of the utility model cable connecting seat；
Figure 10 is the structural schematic diagram of the utility model fuse.
Specific implementation mode
Below in conjunction with attached drawing and example, the utility model is described in further detail.
As shown in Figures 1 to 10, a kind of knife of the utility model melts formula bus duct tapping unit, including babinet 1, setting exist
Switch with knifeshaped fuse 2 in babinet 1, switch with knifeshaped fuse 2 are equipped with fuse 4；Babinet 1 offers the opening for assembling switch with knifeshaped fuse 2,
The operation handle 22 of switch with knifeshaped fuse 2 protrudes out babinet 1.
Tapping unit is electrically connected bus duct for connecting bus duct and branched line, switch with knifeshaped fuse 2.Switch with knifeshaped fuse 2
22 projection of operation handle is outside babinet 1, i.e., operation handle 22 is exposed at outside babinet 1, convenient for promptly operating a switch and replacing insurance.
Babinet 1 offers the opening of accommodating switch with knifeshaped fuse 2, and opening is for replacing insurance.
As shown in Figure 2 and Figure 8, switch with knifeshaped fuse 2 includes that the switch main body 21 being hinged and operation handle 22, fuse 4 are set
It sets and drives fuse with respect to the opening of switch main body 21 close to the side of operation handle 22, operation handle 22 on switch main body 21
4 is exposed.Operation handle 22 and 4 snapping of fuse, operation handle 22 are provided with buckle structure, 22 phase of operation handle with fuse 4
Switch main body 21 is detached to the opening driving fuse 4 of switch main body 21.
Fuse-link is provided in fuse 4, fuse-link fuses and cut off the power supply of bus duct input when a short circuit occurs, no
The normal operation for influencing other branched lines keeps distribution system Global Macros more perfect；The generation of electrical fire is reduced, is improved
Security performance reduces the danger that the person gets an electric shock.
There are three fuses 4 for the setting of the switch with knifeshaped fuse 2, and tapping unit is for connecting three-phase electricity.
As shown in Figure 1, Figure 2 and shown in Fig. 9, the babinet 1 is provided with the skewer seat 3 for connecting bus duct, and skewer seat 3 passes through connection
Plate is connect with babinet 1, and the skewer seat 3 is also connected with the end of incoming cables of switch with knifeshaped fuse 2.On skewer seat 3 inside and outside opposite case 1 respectively
Bus duct and switch with knifeshaped fuse 2 are connected, skewer seat 3 connects the skewer seat 3 of switch with knifeshaped fuse 2 by conducting wire or busbar.Skewer seat 3 is provided with skewer
Fitting, skewer seat 3 can be connect with bus duct by pluggable；3 outer wall support plate of skewer seat is offered for passing through bolt and bus duct
The trepanning of connection, skewer seat 3 can pass through fixed tap with bus duct.The stick part includes three-phase electricity stick part, ground wire skewer
Fitting and zero curve stick part.
As shown in Figures 2 to 6, the babinet 1 is spliced, branch set up separately set and modular construction is relatively simple, technique compared with
To be simply easily achieved, babinet 1 is easy to produce；Babinet 1 is spliced, convenient for the dismounting of babinet 1, is readily transported.The babinet 1
Including two side plates 11, the upper cover 12 of connecting lateral plate 11 and lower cover 13, babinet 1 by two side plates 11, upper cover 12 and under
Cover 13 is assemblied to form；Two side plates 11 are connected by upper cover 12 and lower cover 13 in assembly.Two side plates 11, upper cover 12
And the spliceosome of lower cover 13 is provided with the chamber for housing switch with knifeshaped fuse 2, two side plates 11, upper cover 12 and lower cover 13
Spliceosome offer the opening for housing switch with knifeshaped fuse 2,2 handle of switch with knifeshaped fuse protrudes out spliceosome；Two side plates 11, on
The spliceosome of cover 12 and lower cover 13 is provided with the opening for assembling skewer seat 3.
As shown in Figure 2 and Figure 4, the side plate 11 is provided with the sliding slot 11a for being clamped upper cover 12 and lower cover 13, sliding
Slot 11a is for positioning fit on cover 12 and lower cover 13.
Two side plates 11 are bolted in the upper cover 12 and lower cover 13, and upper cover 12 and two side plates 11 are secured
Connection.Specifically, upper cover 12 could be provided as：Upper cover 12 rivets or is welded with nut, and bolt, which is worn, connects side plate 11, upper cover
12 and nut；Upper cover 12 may be set to be：Upper cover 12 offers threaded hole, and bolt, which is worn, connects side plate 11 and upper cover 12.
Lower cover 13 could be provided as：The lower riveting of cover 13 is welded with nut, and bolt, which is worn, connects side plate 11, lower cover 13 and nut；Under
Cover 13 may be set to be：Lower cover 13 offers threaded hole, and bolt, which is worn, connects side plate 11 and lower cover 13.
The side plate 11 could be provided as：Side plate 11 is aluminum alloy material formed by extrusion and tension, and sliding slot 11a is formed by extrusion and tension institute
.The side plate 11 may be set to be：Side plate 11 is steel injection molding.
The upper cover 12 and lower cover 13 are coloured picture steel plate machine-shaping, avoid surface treatment needed for cover processing,
Spraying and baking finish, the environmental pollution generated in cover 12 and the processing of lower cover 13 in solutions.
The babinet 1 is connected with the support element 14 for installing switch with knifeshaped fuse 2.The support element 14 could be provided as：Branch
Support member 14 is positioning horizontal stripe, and the both sides of the babinet 1 are provided with fixed strip, and positioning horizontal stripe is bolted with fixed strip, and knife is molten to be opened
It closes 2 and positioning horizontal stripe is bolted.Further have, the fixed strip can be the one side wall of sliding slot 11a.The support element
14 may be set to be：Support element 14 includes crossbeam and longeron, and longeron connects on 1 internal face of babinet or connection 1 inner wall of babinet
Fixed strip.
The babinet 1 is provided with ground wire connection terminal；Further have, the ground wire connection terminal is arranged in support element 14
On.The support element 14 is metal material, and switch with knifeshaped fuse 2 and ground wire are connected to well on support element 14, ensures switch with knifeshaped fuse 2
Shell can preferably be grounded.
The babinet 1 is connected with knob 12a；Further have, the knob 12a is arranged in upper cover 1212.Setting is drawn
Hand 12a, babinet 1 conveniently can be carried or be carried；In the fractionation of babinet 1, upper cover 12 can also be torn open more conveniently
It removes.
The babinet 1 is provided with outlet hole 13a, and the outlet cable of tapping unit passes through outlet hole 13a connections switch with knifeshaped fuse 2
Outlet terminal.Further have, the outlet hole 13a is connected with the seal closure 5 for sealing socket output cable.It is arranged close
Sealing cover 5 ensures 1 internal environment of babinet, avoids 1 the occurrence of wetness of babinet etc..
The above is not limitations of the present invention, and the utility model is also not limited to the above embodiment,
As long as the variations, modifications, additions or substitutions made in the essential scope of the utility model, to reach the utility model
Technique effect should all belong to the scope of protection of the utility model.
Claims (10)
1. a kind of knife melts formula bus duct tapping unit, it is characterised in that：It melts and opens including babinet (1), the knife being arranged in babinet (1)
It closes (2), switch with knifeshaped fuse (2) is equipped with fuse (4)；Babinet (1) offers the opening for assembling switch with knifeshaped fuse (2), and knife is molten
The operation handle (22) of switch (2) protrudes out babinet (1).
2. a kind of knife according to claim 1 melts formula bus duct tapping unit, it is characterised in that：The switch with knifeshaped fuse (2)
There are three fuses (4) for setting.
3. a kind of knife according to claim 1 melts formula bus duct tapping unit, it is characterised in that：Babinet (1) setting
It is useful for the skewer seat (3) of connection bus duct, the skewer seat (3) is also connected with the end of incoming cables of switch with knifeshaped fuse (2).
4. a kind of knife according to claim 1 melts formula bus duct tapping unit, it is characterised in that：The babinet (1) is to spell
Connect formula.
5. a kind of knife according to claim 4 melts formula bus duct tapping unit, it is characterised in that：The babinet (1) includes
Two side plates (11), the upper cover (12) of connecting lateral plate (11) and lower cover (13).
6. a kind of knife according to claim 5 melts formula bus duct tapping unit, it is characterised in that：Side plate (11) setting
It is useful for being clamped the sliding slot (11a) of cover (12) and lower cover (13).
7. melting formula bus duct tapping unit according to any a kind of knife of claim 5 and 6, it is characterised in that：The side plate
(11) it is aluminum alloy material formed by extrusion and tension.
8. a kind of knife according to claim 5 melts formula bus duct tapping unit, it is characterised in that：The upper cover (12) and
Lower cover (13) is coloured picture steel plate machine-shaping.
9. a kind of knife according to claim 1 melts formula bus duct tapping unit, it is characterised in that：Babinet (1) connection
It is useful for the support element (14) of installation switch with knifeshaped fuse (2).
10. a kind of knife according to claim 1 melts formula bus duct tapping unit, it is characterised in that：Babinet (1) setting
There is outlet hole (13a).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721732235.5U CN207677310U (en) | 2017-12-11 | 2017-12-11 | A kind of molten formula bus duct tapping unit of knife |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721732235.5U CN207677310U (en) | 2017-12-11 | 2017-12-11 | A kind of molten formula bus duct tapping unit of knife |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207677310U true CN207677310U (en) | 2018-07-31 |
Family
ID=62969259
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721732235.5U Active CN207677310U (en) | 2017-12-11 | 2017-12-11 | A kind of molten formula bus duct tapping unit of knife |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207677310U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107968330A (en) * | 2017-12-11 | 2018-04-27 | 广东光乐电力科技有限公司 | A kind of knife melts formula bus duct tapping unit |
-
2017
- 2017-12-11 CN CN201721732235.5U patent/CN207677310U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107968330A (en) * | 2017-12-11 | 2018-04-27 | 广东光乐电力科技有限公司 | A kind of knife melts formula bus duct tapping unit |
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| GR01 | Patent grant |