CN105203813A - Compact meter and electrical plugging type metering equipment - Google Patents
Compact meter and electrical plugging type metering equipment Download PDFInfo
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- CN105203813A CN105203813A CN201510566070.8A CN201510566070A CN105203813A CN 105203813 A CN105203813 A CN 105203813A CN 201510566070 A CN201510566070 A CN 201510566070A CN 105203813 A CN105203813 A CN 105203813A
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- 238000010168 coupling process Methods 0.000 claims description 7
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- 238000012546 transfer Methods 0.000 claims description 4
- 238000004891 communication Methods 0.000 abstract description 10
- 238000005070 sampling Methods 0.000 abstract 3
- 238000013461 design Methods 0.000 description 12
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- 239000004020 conductor Substances 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 238000009826 distribution Methods 0.000 description 3
- 230000009471 action Effects 0.000 description 2
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- 239000002184 metal Substances 0.000 description 2
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- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 241000784732 Lycaena phlaeas Species 0.000 description 1
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000012937 correction Methods 0.000 description 1
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- 230000037431 insertion Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
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Abstract
The invention provides a compact meter and metering equipment. The compact meter is composed of a body and a bearing base which is electrically isolated from the body through mutual splicing. A metering function part is arranged in the body. The body is connected in the corresponding inserting slot of the external bearing base in a plugging way through a plug arranged at the back side of the body. In one embodiment, the bearing base is provided with a mutual inductor component and an electricity taking circuit. Alternating current of a power line is sampled and converted into direct current to be provided for the body through the inserting slot. The metering function part is only provided with a sampling circuit, a metering circuit, a single-chip microcomputer, a communication circuit and a DC conversion circuit, and receives sampling signals provided by the inserting slot and converts direct current into working voltage used for the single-chip microcomputer and the communication circuit. In another embodiment, the bearing base is provided with a wiring slot used for conduction of the power line of a power grid and the mutual inductor component arranged in the wiring slot. The metering function part is provided with the electricity taking circuit, the sampling circuit, the metering circuit, the single-chip microcomputer and the communication circuit.
Description
Technical field
The multiple embodiment of the present invention is about plug-in electric power acquisition equipment, and the ammeter of especially plug-in collection or distribution transformer terminals equipment, belong to grid power systems technology.
Background technology
Electric power acquisition equipment, such as ammeter is the equipment that electricity consumption behavior and semi-invariant to electricity consumption user read for mains supply or operating department.In general technology, ammeter or distribution transformer terminals are installed concentratedly in table case out of doors.Ammeter is by shell and pedestal two parts are mutually fenced forms the body part forming ammeter, and line of electric force by design in the terminal box access of body interior with pick out zero line and live wire to form the degree link in load circuit.Under normal circumstances in order to save inner space, terminal box needs the side being arranged on body, saves connection circuit on the one hand, makes strong power part as far as possible away from other circuit boards and the possible electromagnetic interference (EMI) of body interior on the other hand.
Along with updating of electric power network technology, the function of table and the complicated of electric property make the devices such as its internal circuit plate get more and more, and then make bulk volume constantly become large, have impact on design space and the electrical isolation design of table itself.
Summary of the invention
The present invention makes the structure of current ammeter or distribution transforming acquisition terminal again improving, and routine is shown body and carries out reducing and simplified design, design the structure of ammeter, thus accomplish conveniently replaced maintenance and use in pluggable mode.
In the one side of technical solution of the present invention, the body construction of ammeter is mainly spliced by the electric component of 3.3V-5V and forms, and such as accessible site, in a PCB, is mainly used in the basic calculating correction values function and the remote communication function that realize ammeter itself.Correspondingly, in the bearing coordinated with above-mentioned body construction, devise conductive path, the configuration of conductive path can be multiple, contains the input/out line that zero line N, live wire L and possible ground wire E are formed side by side.Simultaneously, the mutual inductor coil of installing induction alternating current change on described circuit, and (such as) isolating transformer assembly be attached thereto, for the convert alternating current on circuit being become low-voltage DC (such as 12A-15A size), can directly obtain wherein voltage and current signal for sample circuit.
On the other hand, according to the needs of power supply transformation, body interior design power taking assembly, power taking assembly can not be arranged in bearing as required, in bearing, winding displacement groove and transformer component are mainly set, and in order to the electrical path in conducting or cut-out winding displacement groove, arrange and in attaching process, its electric power break-make can be controlled with pluggable mode.
In order to realize above-mentioned effect, technical solution of the present invention 1: close-coupled table is made up of the mutual split of bearing of body and electrical isolation with it, wherein function of measuring part is arranged in described body, and the plug plug-in that described body is arranged by its dorsal part is connected in the corresponding slot of outside bearing.Described bearing has: be undertaken in the transformer component between electric network power line and user load, and it is electrically connected on described slot, the ac signal variable quantity in the induced electricity line of force; And connect the power-supply circuit of described transformer component, for line of electric force convert alternating current is supplied to above-mentioned body to direct current by described slot.Described function of measuring part has: sample circuit, to be electrically connected in described plug at least partially, and electric current and the voltage signal of the described body alternating current line of force are introduced in induction; Metering circuit, connects described sample circuit to read electric current and voltage signal carries out integral operation; Single-chip microcomputer, the metering circuit described in electrical couplings is to process described integral operation value; Be electrically connected the communicating circuit of described single-chip microcomputer; And DC transfer circuit, the DC power conversion provided from described slot is become the operating voltage of the described single-chip microcomputer of supply and communicating circuit.
As a kind of effect, above-mentioned body construction can realize the electrical isolation with bearing part by shell or other known annexes, in general ammeter technology, usual use shielded metal cover realizes effective isolation of transformer or mutual inductor and function of measuring part to realize electromagnetic compatibility (EMC), the embodiment of the present invention can realize this effect easily, first alternating current impression curtage variable on line of electric force L/N can carry out obtaining and transformation by bearing part, thus can directly for body provides the voltage of DC form, current signal source and chip operation required electric power source, bearing body can carry out electrical isolation installation according to specification.On this basis, it is more compact that body can design, thus can increase PCB layout design space.
In an improvement, described plug has separate setting: the first plug (or contact pin), for obtaining electric current and voltage signal from the above-mentioned slot of a part; And second plug, for obtaining power supply direct current from the above-mentioned slot of another part.
Technical scheme 2: electrically plug-in metering outfit, be made up of body and the mutual split of bearing, wherein electric function part is arranged in described body, and the plug plug-in that described body is arranged by its dorsal part is connected in the corresponding slot of outside bearing.Described bearing has: winding displacement groove, for forming electricity-led path between electric network power line and user load; And the transformer component be arranged on this winding displacement groove, it is electrically connected on described slot, the ac signal variable quantity in the induced electricity line of force.Described electric function part has: power-supply circuit, obtains alternating current on above-mentioned electrically conductive path to be converted into direct current by described plug; Sample circuit, is electrically connected to described plug, and electric current and the voltage signal of the described electric plug-in metering outfit body alternating current line of force are introduced in induction; Metering circuit, connects described sample circuit to read electric current and voltage signal carries out integral operation; Single-chip microcomputer, the metering circuit described in electrical couplings is to process described integral operation value; And be electrically connected the communicating circuit of described single-chip microcomputer.
In an improvement, described plug has separate setting: the first plug, for obtaining alternating current from the above-mentioned slot of a part; And second plug, for blocking at least part of conductive path of winding displacement groove in described bearing; Or, for inserting described second bayonet socket part and pressing down described active plate with winding displacement groove in bearing described in conducting.In another effect, consider in ammeter and be configured with relay or breaker assembly, utilized the mode in addition turn-on and turn-off of winding displacement groove and plug plug in embodiments of the present invention, instead of and additional configuration required for relay and cost are installed separately, install more simple and easy.
In another improvement, the first bayonet socket part and the second bayonet socket part is provided with in described slot, described first bayonet socket part is made up of with the outgoing side bayonet socket part being connected power grid user load end the input side bayonet socket part of the connection grid power line end arranged in pairs, and first, second bayonet socket part wherein said is inlaid in the corresponding bayonet socket installing plate in described slot.
Wherein, each first bayonet socket part is attached with a hook-shaped outshot, snaps in described body for being arranged in bearing at described body after correct position.
Further, have again in bearing: the bearing plate accepting described second bayonet socket part, for by the height lifting of the second bayonet socket part with higher than the first bayonet socket part place level, first the second plug is contacted with the second bayonet socket part; And the active plate be located in described bearing, be provided with elasticity conflict parts between bottom active plate and bearing, make it to have and hook-shaped outshot bottom bearing between the coplanar initial position in extension.When this initial position, described hook-shaped outshot is horizontal.Preferably, described hook-shaped outshot is fixed on a threading axle, makes hook-shaped outshot with this threading axle along stationary shaft to turn.
Further, bottom above-mentioned active plate, be provided with electric contact piece again, when the second plug continue to press down active plate until run through universal driving shaft be limited in the second locking position time, electric contact piece inserts in the electrical contact groove in winding displacement groove, thus this winding displacement groove of conducting.And electric contact piece is electrically connected again the first bayonet socket part, thus two first bayonet socket parts of conducting input side and outgoing side.As a kind of effect, winding displacement groove can't conducting before installation body, only after pressing down the conductive contact piece bottom active plate to the contact groove in winding displacement groove, simultaneously conducting winding displacement groove and this conductive contact piece the first bayonet socket part in electrical contact, thus more simple and easy and above-mentioned body is installed easily.
Simultaneously, locking grab is provided with further bottom active plate, the kayser movable button of a pair horizontally set is provided with bottom bearing, in described kayser movable button is bottom bearing, the end of extension respectively arranges a kayser and buckles, described locking grab is connected in this kayser and buckles, described active plate is locked in bottom bearing, and then the above-mentioned hook-shaped outshot of locking is in the second fracture position.Installation personnel is when needing to pull down described body, and only need press two kayser movable buttons to bearing direction, namely active plate can get loose and be subject to the tension force of elasticity conflict parts and return back to initial position, then hook-shaped outshot by automatic linkage to horizontal level.
As the improvement of each technical scheme above-mentioned, the installing plate of described bearing extend to again another bearing at least partially in, wherein said bayonet socket installing plate is fixed after mutually being spliced by the Contact Boundary of two bearings.As another effect, the mounting means of bayonet socket part is more flexible and convenient, and the mode due to common socket is grafting bayonet socket part is directly be fixed on conductor wire by the mode of screw or welding, and such mode is unfavorable for maintenance and the replacing of socket.When flowing through the conducting wire in socket in general larger current, easily cause due to the incorrect of the electric arc effect that occurs once in a while or inserting mode and occur cumulative damage at bearing jack place, can realize easily changing socket element by bayonet socket part mounting means of the present invention.
Accompanying drawing explanation
Fig. 1 is the disassembly and assembly structure schematic diagram of plug-in metering outfit of the present invention;
Fig. 2 is the grafting scheme of installation of the bottom first bayonet socket part of ammeter bearing of the present invention;
Fig. 3 is the grafting scheme of installation of the bottom second bayonet socket part of ammeter bearing of the present invention;
Fig. 4 is the scheme of installation that ammeter of the present invention is arranged in electric box;
Fig. 5 is the structure function block diagram of the first embodiment of ammeter of the present invention;
Fig. 6 is the cross-sectional view of ammeter bearing of the present invention.
Embodiment
Present pre-ferred embodiments is elaborated with form by reference to the accompanying drawings, and improvement of the present invention is mainly:
1, the ammeter structural body 1 (shown in Fig. 1) of compact design.Its electric function part is that a signals collecting PCB of body interior is thus limited.In body, wherein do not arrange terminal box or the terminals of zero line N/ live wire L, and terminal portions is arranged on table body exterior or can be directly replaced, such as, dorsal part shown in Fig. 2, it is designed to the form of conductive plug 11.In one embodiment, the size of plug (maybe can be referred to as knife-like electrical connection section) 11 can be different from general plug, the construction size of socket and structure angle, in order to reach less connection internal resistance and more stable electrical contact, the size in knife-like portion 11 can be thicker longer, tin-coated copper material can be designed to simultaneously, can make after definite melting point be reached to form electrical contact more closely between knife-like portion 11 and jack due to the temperature of internal resistance generation after bearing 2 electrical contact like this.
From the embodiment of Fig. 2, plug/knife-like portion 11 can be designed to four for single-phase type table, and for other intelligent meters, can be set to six or more.Due to the simplification of inner structure, the volume of body 1 can accomplish reducing of high degree, such as distinguish from external structure, body can be divided into the display segment 13 shown in Fig. 3, communication section 12 and signals collecting section 14 are (generally, communication terminal 12 can be set directly at the top of body 1, then according to the requirement of communication rule at bodies top opening, can facilitate the communication module that selectivity dismounting is different).Such as, because terminal box is the contact jaw of the higher AC voltage for 220V to 380V, in the design of contact element, therefore adopt crimping electric-conductor and the space isolation design of larger volume, if save this part, showing inner space can simplify by high degree.
2, ammeter equipment assembles with pluggable mode.The side view of Fig. 2 shows single-phase electric meter body 1 as shown in Figure 1 and the bearing 2 (basic configuration of bearing 2 is not defined as circle, only conveniently describes use, and eliminates housing parts, only shows key component) that matches of configuration with it.The bottom side of body 1 is provided with the first plug 11, and for electric plug-in mounting in correspondence four slots (not illustrating in figure) of bearing 1, described bearing 2 is electrically connected in again between electric network power line and power grid user load.
According to above improvement purpose, as first embodiment of the invention, close-coupled single-phase meter by body 1 and with it electrical isolation bearing 2 mutually split form.Wherein, ammeter function of measuring part is arranged in described body 1, and plug 11 plug-in that described body 1 is arranged by its posterior dorsal is connected in the corresponding slot of outside bearing.
With further reference to Fig. 1 to 5, bearing 2 has: be undertaken in the transformer component 211 (such as current/voltage mutual inductor winding) between electric network power line and user load, it is electrically connected on described slot, the ac signal variable quantity in the induced electricity line of force; And connect the power-supply circuit 212 of described transformer component 211, for line of electric force convert alternating current is supplied to above-mentioned body 1 to direct current by described slot.
Described function of measuring part has: sample circuit 111, to be electrically connected in described plug at least partially, and electric current and the voltage signal of the described body alternating current line of force are introduced in induction; Metering circuit 113, connects described sample circuit to read electric current and voltage signal carries out integral operation; Single-chip microcomputer 114, the metering circuit described in electrical couplings is to process described integral operation value; Be electrically connected the communicating circuit 115 of described single-chip microcomputer; And DC transfer circuit 112, the DC power conversion provided from described slot is become the+3.3V operating voltage of the described single-chip microcomputer 114 of supply and communicating circuit 115.
As second embodiment of the invention, in the electric plug-in metering outfit of one, bearing 2 has: winding displacement groove 28, for forming 220V electricity-led path between electric network power line 100 and user load; And the transformer component 211 be arranged on this winding displacement groove 28, it is electrically connected on described slot, the ac signal variable quantity in the induced electricity line of force.
Described electric function part has: power-supply circuit 212, obtains alternating current on above-mentioned electrically conductive path to be converted into direct current by described plug; Sample circuit 111, is electrically connected to plug 11, and electric current and the voltage signal of the described electric plug-in metering outfit body 1 alternating current line of force are introduced in induction; Metering circuit 113, connects described sample circuit to read electric current and voltage signal carries out integral operation; Single-chip microcomputer 114, the metering circuit described in electrical couplings is to process described integral operation value; And be electrically connected the communicating circuit 115 of described single-chip microcomputer.
In above-mentioned any embodiment, be provided with bayonet socket part in each slot, the shape of bayonet socket can be diagram shape, also can be that other is convenient to fix the shape of plug.Bayonet socket part comprises the first bayonet socket part 21a, 21b, 22a or 22b, and the second bayonet socket part 26.These the first bayonet socket parts are made up of the input side bayonet socket part 21a arranged in pairs, 21b and the bayonet socket part 22a being connected power grid user load-side, 22b.Above-mentioned bayonet socket part is inlaid in the corresponding bayonet socket installing plate 23 in described slot.Preferably, the structure of first, second bayonet socket part is different, or the position of first, second bayonet socket part can be exchanged mutually.
Wherein, according to first embodiment of the invention, the first above-mentioned bayonet socket part includes the input side bayonet socket part 21a for the sample circuit in body 1 provides sampled voltage and electric current to input, 21b and the outgoing side bayonet socket part 22a that this voltage, current out path are provided, 22b, the second bayonet socket part 26 is as the interface providing DC voltage to DC transfer circuit in body 1.And according to second embodiment of the invention, first bayonet socket part is by the input side bayonet socket part 21a of the connection grid power line end arranged in pairs, 21b and the outgoing side bayonet socket part 22a being connected power grid user load end, 22b composition, the second bayonet socket part 26 is then as the on-off switch of winding displacement groove 28.Wherein arbitrary bayonet socket part is inlaid in the corresponding bayonet socket installing plate 23 in described slot.
For bayonet socket part 21a, multiple metal slit is formed in installing plate 23, bayonet socket part 21a can embed in the bayonet socket installing plate 23 shown in Fig. 1 along these slits along illustrated H direction, and then its other one end is pushed bayonet socket installing plate 23 to along H direction equally by another installing plate 25 thus is stuck in bearing 2 by bayonet socket part 21a.Similarly, the mounting means of the second bayonet socket part 26 is identical with it.For each bayonet socket part, its shape can be designed to illustrate shape, is namely similar to the configuration relation between plug and socket, and table body 1 longitudinally inserts bearing 2 downwards to realize electrically conducting along P.
In an improvement, the installing plate 25 of described bearing 2 extend to again another bearing at least partially in, wherein said bayonet socket installing plate 23 is fixed after mutually being spliced by the Contact Boundary of two bearings 2.With reference to Fig. 4, installing plate 25 extends to another bearing or the part for another bearing, and bearing 2 needs to be fixed in batch in table case or regulator cubicle.And in order to realize taking out after unloading body 1 or changing above-mentioned bayonet socket part on installing plate 25, an installing plate 25 is provided with clearance space, so that (in such as Fig. 3, installing plate 25 central authorities arrange clearance space can to remove the part of installing plate 25 against the surperficial installation direction of bearing 2 (H direction), installing plate is divided into two the equal areas parts fixing above-mentioned bayonet socket part), and in embodiments of the present invention, between installing plate 25 with bayonet socket installing plate 23 after contacting and splicing, threading lead sealing can be used to be locked.
With reference to Fig. 1, each first bayonet socket part has a hook-shaped teat, it has the barbed end portion 241 upwards extended of projecting part 24 and this projecting part 24 end extended outside bayonet socket installing plate in diagram, snaps in described body 1 for being arranged in bearing 2 at described body 1 after correct position.
Again with reference to Fig. 2 and 3, further, in bayonet socket part described in each, there is again press-down type elastic contact part 261, be configured to: by above-mentioned Plug contact and make after pressing down described hook-shaped outshot bottom bayonet socket part between extension produce the first fracture position 242 or 243, barbed end portion 241 hook that the fracture wherein produced bottom the first bayonet socket part 21a promotes described projecting part 24 end is stuck in the second fracture position 15 in above-mentioned body 1.As an additional examples, second fracture position 15 can be used as the dismounting point of body 1, namely body 1 is divided into top casing 18 and the mutual fenced part of bottom enclosure 17 two by the second fracture position 15, barb teat 241 fixes described bottom enclosure 17, fixes between top casing 18 and bottom enclosure 17 by lead sealing split.
With reference to Fig. 4, bearing 2 inside is run through further and is provided with winding displacement groove 28. and undertakes electric contact piece, respectively as the coupling part to electrical network L, N line and load end at winding displacement groove 28 two ends.Such as, winding displacement groove 28 two ends are provided with the input end 27a and output terminal 27b that connect electric network power line 100 side.In a preferred example, output terminal 27b or input end 27a is designed to field-replaceable unit, thus can connect as required in winding displacement groove 28 and establish different power circuit.Winding displacement groove 28 connects bayonet socket part 21a (Fig. 3) to 22b, once plug 11 inserts in bayonet socket part 21a, is provided with an Elastic Contact part 261 in 21a, and when plug 11 presses down this elastic contact part timesharing, it is communicated with winding displacement 28 with electric power conducting.
Such as, according to second embodiment of the invention spirit, second plug 16 is designed to non-conducting material, for blocking the ac conduction path in winding displacement groove 28, and (such as) by-pass switch is set between winding displacement groove 28 and the first bayonet socket part, this by-pass switch of conducting after insertion plug 16 to bayonet socket part 26.And in body 1, being provided with power-supply circuit, it obtains electric power by the first bayonet socket part.And according to first embodiment of the invention spirit, second plug 16 is as direct current power taking parts, correspondingly described second bayonet socket part 26 is not directly connected with between winding displacement groove 28, but be provided with power circuit, be after 12V direct current by 220V convert alternating current, directly be supplied to electric plates in body 1, and there is not switching function.Simultaneously, first bayonet socket part is same with between winding displacement groove is provided with mutual inductor and transformer device, be that the alternating current variable in line of electric force 100 or winding displacement groove 28 is sensed as the readable electric signal variable of chip, thus reduce its current/voltage value by transformer, pass to single-chip microcomputer and read.
With reference to Fig. 2 and 3, in the improvement of the first embodiment, described plug 11 has separate setting: corresponding to first plug 11 of the first bayonet socket part 21a to 22b, for obtaining electric current and voltage signal from the above-mentioned slot of a part (namely main from above-mentioned bayonet socket part); And correspond to the second plug 16 of the second bayonet socket part 26, for obtaining the DC current of power supply (such as) 12A from the above-mentioned slot of another part.If wherein plug goes out with knife-like formal construction, the then configuration of the bayonet socket part structure that can tighten up according to the ecto-entad shown in Fig. 3, if and plug is common copper sheet or contact pin form, in order to reach stable electrical contact, bayonet socket part can be designed to the shell fragment form of inwardly tightening up in Fig. 2.In the improvement of the second embodiment, described plug has separate setting: corresponding to first plug 11 of the first bayonet socket part 21a to 22b, for obtaining 220V alternating current from above-mentioned first bayonet socket part; And correspond to the second plug 16 of the second bayonet socket part 26, for blocking the conductive path of winding displacement groove 28 in described bearing 2, changing into and providing current/voltage from bypass to four the first bayonet socket part 21a to 22b.
According to the present invention first or second embodiment, the method for installing this single-phase electric meter includes:
Step 1, provide body 1 and bearing with matching 2, in described body 1, individual layer electric plates is installed, as the function of measuring part of table, several exits are set from this individual layer electric plates and establish the first plug 11 to connect, the slot coincide with described plug configuration is set in bearing 2, in slot, be wherein provided with the first bayonet socket part 21a to 22b, its etc. be connected to winding displacement groove 28 in bearing 2, described winding displacement groove 28 connects electric network power line 100;
Step 2, body 1 is pressed to bearing 2 along P direction, make the first plug 11 and the complete electrical contact of the first bayonet socket part;
Step 3, to be pressed down the Elastic Contact part 261 that (such as) first arrange in bayonet socket part 21a by the first plug 11, the barb-like outshot 241 of outshot 24 end is made to produce the first fracture position 242 or 243 in bayonet socket part 21a extension between the bottom of bearing 2, barbed end portion 241 hook that the fracture wherein produced bottom the first bayonet socket part 21a promotes described projecting part 24 end is stuck in the second fracture position 15 in above-mentioned body 1, and wherein barbed end portion 241 is for blocking the bottom enclosure 17 of body 1:
Step 4, bottom enclosure part 17 internal fixtion individual layer electric plates at body 1, or need to install multilayer electric plates according to difference, be mounted to top casing 18 in bottom enclosure 17, in addition fastening with lead sealing.
In an example, body 1 dorsal part is provided with again the second plug 16 (not showing because block in Fig. 1), as shown in Figures 2 and 3, being set to of plug 11 and plug 16 is mutually orthogonal, the setting direction of therefore corresponding in bearing 2 socket bayonet socket part 26 should be laterally and the direction of bayonet socket part 21a, 21b etc. is longitudinally.Horizontal and vertical definition determines according to winding displacement groove 28.As Fig. 4, in table case/regulator cubicle, only design a lead-in wire 100, all the other winding displacements 28 are respectively and hang on this lead-in wire, therefore be horizontal, also normal corresponding table 1 user to.
As improvement, bayonet socket part has again the second bayonet socket part 26, and as correspondence, the position of first, second bayonet socket part is mutually orthogonal.In the above-described first embodiment, obtain the voltage variable signal from winding displacement groove 28 by the first bayonet socket part 21a and 22a, and obtain the current variable signal from winding displacement groove 28, for the electric power integral operation of single-chip microcomputer by the first bayonet socket part 21b and 22b; There is provided DC current to above-mentioned single layer board by the second bayonet socket part 26.In above-mentioned second embodiment, first the second bayonet socket part 26 is inserted to block the current path in winding displacement groove 28 by the second plug 16, by conducting by-pass switch transferring electric power to (such as) the first bayonet socket part 21a, then provided the alternating current variable of induction to body 1 by the first bayonet socket part 21a.
Preferably, after plug 16 inserts bayonet socket part 26, cannot normally be taken out, as shown in Figure 3, its profile configuration is different from bayonet socket part 21a etc., as a kind of fixed form, if when plug 16 crimps downwards, the barb-like projecting part 24 of the bayonet socket part 21a in bearing 2 originally is still in bearing 2 on the surface, with bayonet socket part 21a similarly, be provided with an Elastic Contact part 261. in it equally
When pressing down this Elastic Contact part 261, the conducting connecting part of (bearing 2 inner) bottom two bayonet socket parts 26, i.e. in the case of projecting part 24, extension is by generation first fracture position 242 or 243 (action shown in Fig. 2 or 3).On the one hand, the terminal part 241 of projecting part 24 is the parts that extend internally tilted, and it is by moving to P completely in second fracture position 15 be stuck in during upright position on table 1 body; On the other hand, originally winding displacement 28 is that conducting is in bayonet socket part 26, when grafting table body 1 after there is the first fracture position, originally the longitudinal path between two orthogonal with winding displacement 28 bayonet socket parts 26 is cut off, thus make bayonet socket part 21a, the conductings such as 21b, can prevent the conductings without reason such as slot 21a like this.
Second fracture position 15 can as a path of taking body 1 apart when producing.In a predictable example, the part of the inherent fracture position less than 15 of body 1 can install signal acquisition circuit plate, for special connection external electrical assembly, and samples to the AC ac signal that electric loop produces and parameter calculating.In general example, table inside arranges multilayer electric plates usually, and the display board of corresponding display segment 13 and the communication board of corresponding communication section 12 can be arranged on fracture position 15 place plane upper side.
Separately, signals collecting section 14 part of table body 1 inside can adopt non-transformer mode, such as paster RC mode, meanwhile, bearing 2 can install other collecting devices but not ammeter is special.
According to a second embodiment of the present invention, each bayonet socket part has again elastic contact part 261, be configured to: by above-mentioned Plug contact and make after pressing down described hook-shaped outshot 24 bottom the first bayonet socket part between extension produce the first fracture position 242, end 241 hook promoting described hook-shaped outshot is stuck in above-mentioned intrinsic second fracture position 15, and stops that the path of winding displacement groove electrically conducting is to form conductive path by between described winding displacement groove and each bayonet socket part between cut-out bayonet socket part 21a and 22a.
With reference to the cross sectional view of the bearing shown in Fig. 6, in second embodiment of the invention, described bearing 2 inner bayonet installing plate 23 has:
Accept the bearing plate 29 of described second bayonet socket part 26, for by the height lifting of the second bayonet socket part 26 with higher than place levels such as the first bayonet socket part 21a, first the second plug 16 is contacted with the second bayonet socket part 26; And
Be located at the active plate 292 in described bearing 2, elasticity conflict parts 295 (such as spring) are provided with between bottom active plate 292 and bearing 2, make it to have and hook-shaped outshot 24 bottom bearing 2 between the coplanar initial position in extension, namely the dotted line position at bearing 2 top is in shown in Fig. 6, when this initial position, described hook-shaped outshot 24 is horizontal.And the solid line of Fig. 6 to illustrate part be the bascule state inserted in bearing 2 in second plug 16 process, in figure, the parts of main activities are above-mentioned active plate 292 and the hook-shaped outshot 24 with its interlock.
Preferably, described hook-shaped outshot 24 is fixed on a threading axle Z1, makes hook-shaped outshot 24 with this threading axle Z1 axially R1 or R2 turn.Such as can any position between two final positions showing of turn dotted line in Fig. 6.The part that hook-shaped outshot 24 is divided into the visible part outside bearing 2 and extends bottom bearing by threading axle Z1.
Further, active plate 292 has and in surface level, runs through two slips of offering pass through groove 294, pass through each transverse direction in groove 294 (orthogonal directions in the H direction namely in Fig. 1) in these two slips to penetrate one and run through universal driving shaft Z2, this runs through universal driving shaft Z2 and is fixed together movably at the end of bearing 2 bottom extending portion and active plate 292 by hook-shaped outshot 24, along with active plate 292 is pressed down by the second plug 16, effect is involved owing to running through universal driving shaft Z2, in addition hook-shaped outshot 24 is by the fixing turn effect of threading axle Z1, enable the visible part of described hook-shaped outshot 24 outside bearing 2 according to axial R1 upwards turn be finally fastened in the second fracture position 15 in body 1, run through universal driving shaft Z2 to be limited in slip and to pass through in groove 294 simultaneously, only pass through groove 294 space along slip to slide from first (or initial) locking position A to second (termination) locking position B.Meanwhile, there is the first fracture position 242 in previous level position to the extension in bearing 2 in hook-shaped outshot 24.Such as, if there is not fracture position and two hook-shaped outshots 24 to accept mutually be a straight-line integrated (as shown in Figure 6 state), then winding displacement groove 28 can be stopped by it and not form conductive path.Preferably, hook-shaped outshot 24 is that non-conducting material is made.
In a preferred example, the width passing through groove 294 equals or slightly larger than the profile diameter of universal driving shaft 294.
According to the present embodiment spirit, due to the effect of elasticity conflict parts 295, above-mentioned linkage action can recover.That is, when the people installing this ammeter needs to take out body 1, said process is reversible, and hook-shaped outshot 24 can get back to original horizontal position place.Meanwhile, consider length and the deformation space surplus of hook-shaped outshot 24, the height of bearing plate 29 need a little more than surfaces, place such as other bayonet socket parts 21a of bearing 2.
Further, electric contact piece 291 is provided with bottom active plate 292, when the second plug 16 continue to press down active plate 292 until run through universal driving shaft Z2 be limited in the second locking position B time, electric contact piece 291 inserts in the electrical contact groove 293 in winding displacement groove 28, thus this winding displacement groove 28 of conducting.And electric contact piece 291 is electrically connected again the first bayonet socket part 21a and 22a, thus on H direction two first bayonet socket parts of conducting input side and outgoing side.
Preferably, locking grab 296 is provided with further bottom active plate 292, the kayser movable button 299 of a pair horizontally set is provided with bottom bearing 2, in described kayser movable button 299 is bottom bearing 2, the end of extension respectively arranges a kayser and buckles 297, described locking grab 296 is connected in this kayser and buckles 297, described active plate 292 is locked in bottom bearing 2, and then the above-mentioned hook-shaped outshot 24 of locking is in the second fracture position 15.
According to the present embodiment, installation personnel is when body 1 pulled down by needs, only need press two kayser movable buttons 299 to bearing direction, namely active plate 292 can get loose and be subject to the tension force of elasticity conflict parts 295 and return back to initial position, then hook-shaped outshot 24 by automatic linkage to horizontal level.In a preferred example, in order to make kayser movable button 299 have good contact power, elastomeric element 298 can be set betwixt to strengthen result of use.
According to a second embodiment of the present invention, the method for loading and unloading this single-phase electric meter includes:
Installation method: step 1, provide body 1 and bearing with matching 2, in described body 1, individual layer electric plates is installed, as the function of measuring part of table, several exits are set from this individual layer electric plates and establish the first plug 11 to connect, the slot coincide with described plug configuration is set in bearing 2, in slot, be wherein provided with the first bayonet socket part 21a to 22b, body 1 is pressed to bearing 2 along P direction, make the first plug 11 and the complete electrical contact of the first bayonet socket part;
Step 2, to be pressed down the Elastic Contact part 261 arranged in the second bayonet socket part 26 by the second plug 16 (such as), make the barb-like outshot 241 of outshot 24 end produce the first fracture position 242 in bayonet socket part 21a extension between the bottom of bearing 2, the visible part of described hook-shaped outshot 24 outside bearing 2 can according to axial R1 upwards turn be finally fastened in the second fracture position 15 in body 1;
Step 3, when the second plug 16 continue to press down active plate 292 until run through universal driving shaft Z2 be limited in the second locking position B time, electric contact piece 291 inserts in the electrical contact groove 293 in winding displacement groove 28, thus this winding displacement groove 28 of conducting, electric contact piece 291 is in electrical contact with the first bayonet socket part 21a and 22a again, thus on H direction two first bayonet socket part 21a and 22a of conducting input side and outgoing side, or 21b and 22b;
Step 4, in described kayser movable button 299 is bottom bearing 2, the end of extension respectively arranges a kayser and buckles 297, described locking grab 296 is connected in this kayser and buckles 297, described active plate 292 is made to be locked in bottom bearing 2, at the bottom enclosure part 17 internal fixtion individual layer electric plates of body 1, or need multilayer electric plates is installed according to difference, top casing 18 is mounted in bottom enclosure 17, in addition fastening with lead sealing;
Method for dismounting: step 5, the lead sealing of removal threading;
Step 6, remove installing plate 25 or its at least partially, the kayser movable button 299 that its interior two opposition are arranged is pressed towards bearing 2 direction, namely active plate 292 gets loose and is subject to the tension force of elasticity conflict parts 295 and returns back to initial position, then hook-shaped outshot 24 is by automatic linkage to horizontal level, thus ejects above-mentioned body 1 by the second socket 26.
Wherein, in described kayser movable button 299 is bottom bearing 2, the end of extension respectively arranges a kayser and buckles 297, described locking grab 296 is connected in this kayser and buckles 297, described active plate 292 is locked in bottom bearing 2, and then the above-mentioned hook-shaped outshot 24 of locking is in the second fracture position 15.If pressing kayser buckles 297, then locking grab 296 gets loose automatically.
These are only the present invention's preferably example, but be not the restriction to the technology of the present invention main points, numerous embodiments wherein can to substitute or preferably.Meanwhile, the mode be not covered by the multiple embodiment of the present invention or its combination also should belong to the scope that the present invention advocates, such as, communicating circuit 15 to be designed to body 1 external, or the structure of elastomeric element 295 or 298 can specifically and be optimized.Accompanying drawing of the present invention is only in order to prominent feature and effect, physical size or ratio non-fully is equal to products in kind, only represents as illustrating property.Opinion of the present invention is as the criterion with the protection domain of claims.
Claims (10)
1. close-coupled table, be made up of the mutual split of bearing of body and electrical isolation with it, wherein function of measuring part is arranged in described body, and described body is connected in the corresponding slot of outside bearing by the plug plug-in that its dorsal part is arranged, it is characterized in that, described bearing has:
Be undertaken in the transformer component between electric network power line and user load, it is electrically connected on described slot, the ac signal variable quantity in the induced electricity line of force; And connect the power-supply circuit of described transformer component, for line of electric force convert alternating current is supplied to above-mentioned body to direct current by described slot;
Described function of measuring part only has:
Sample circuit, to be electrically connected in described plug at least partially, and electric current and the voltage signal of the described body alternating current line of force are introduced in induction; Metering circuit, connects described sample circuit to read electric current and voltage signal carries out integral operation; Single-chip microcomputer, the metering circuit described in electrical couplings is to process described integral operation value; Be electrically connected the communicating circuit of described single-chip microcomputer; And DC transfer circuit, the DC power conversion provided from described slot is become the operating voltage of the described single-chip microcomputer of supply and communicating circuit.
2. close-coupled table according to claim 1, is characterized in that, described plug has separate setting:
First plug, for obtaining electric current and voltage signal from the above-mentioned slot of a part; And
Second plug, for obtaining power supply direct current from the above-mentioned slot of another part.
3. close-coupled table according to claim 2, it is characterized in that, in at least part of slot, be provided with bayonet socket part, described bayonet socket part is made up of the input side bayonet socket part arranged in pairs and outgoing side bayonet socket part, and wherein said bayonet socket part is inlaid in the corresponding bayonet socket installing plate in described slot.
4. close-coupled table according to claim 3, is characterized in that, bayonet socket part described in each has a hook-shaped outshot, snaps in described body for being arranged in bearing at described body after correct position.
5. electric plug-in metering outfit, be made up of body and the mutual split of bearing, wherein electric function part is arranged in described body, and described body is connected in the corresponding slot of outside bearing by the plug plug-in that its dorsal part is arranged, it is characterized in that, described bearing has:
Winding displacement groove, for forming electricity-led path between electric network power line and user load; And the transformer component be arranged on this winding displacement groove, it is electrically connected on described slot, the ac signal variable quantity in the induced electricity line of force;
Described electric function part has:
Power-supply circuit, obtains alternating current on above-mentioned electrically conductive path to be converted into direct current by described plug; Sample circuit, is electrically connected to described plug, and electric current and the voltage signal of the described electric plug-in metering outfit body alternating current line of force are introduced in induction; Metering circuit, connects described sample circuit to read electric current and voltage signal carries out integral operation; Single-chip microcomputer, the metering circuit described in electrical couplings is to process described integral operation value; And be electrically connected the communicating circuit of described single-chip microcomputer.
6. electric plug-in metering outfit according to claim 5, is characterized in that, described plug has separate setting:
First plug, for obtaining alternating current from the above-mentioned slot of a part; And
Second plug, for blocking at least part of conductive path of winding displacement groove in described bearing.
7. electric plug-in metering outfit according to claim 6, it is characterized in that, bayonet socket part is provided with at least part of slot, described bayonet socket part is made up of with the outgoing side bayonet socket part being connected power grid user load end the input side bayonet socket part of the connection grid power line end arranged in pairs, and wherein said bayonet socket part is inlaid in the corresponding bayonet socket installing plate in described slot.
8. electric plug-in metering outfit according to claim 7, is characterized in that, bayonet socket part described in each has a hook-shaped outshot, snaps in described body for being arranged in bearing at described body after correct position.
9. electric plug-in metering outfit according to claim 8, it is characterized in that, described in each, bayonet socket part has elastic contact part again, is configured to:
By above-mentioned Plug contact and make after pressing down described hook-shaped outshot bottom bayonet socket part between extension produce the first fracture position, promote described hook-shaped outstanding hook segment and be stuck in above-mentioned intrinsic second fracture position; And
Cut off between bayonet socket part and stop that the path of winding displacement groove electrically conducting is to form conductive path by between described winding displacement groove and each bayonet socket part.
10. electric plug-in metering outfit according to claim 5, it is characterized in that, the installing plate of described bearing extend to again another bearing at least partially in, wherein said bayonet socket installing plate is fixed after mutually being spliced by the Contact Boundary of two bearings.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810983677.XA CN109164284B (en) | 2015-09-08 | 2015-09-08 | Compact watch |
| CN201510566070.8A CN105203813B (en) | 2015-09-08 | 2015-09-08 | Electrical plug-in measuring equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510566070.8A CN105203813B (en) | 2015-09-08 | 2015-09-08 | Electrical plug-in measuring equipment |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810983677.XA Division CN109164284B (en) | 2015-09-08 | 2015-09-08 | Compact watch |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105203813A true CN105203813A (en) | 2015-12-30 |
| CN105203813B CN105203813B (en) | 2018-10-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810983677.XA Active CN109164284B (en) | 2015-09-08 | 2015-09-08 | Compact watch |
| CN201510566070.8A Active CN105203813B (en) | 2015-09-08 | 2015-09-08 | Electrical plug-in measuring equipment |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810983677.XA Active CN109164284B (en) | 2015-09-08 | 2015-09-08 | Compact watch |
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| CN (2) | CN109164284B (en) |
Cited By (3)
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| CN105784026A (en) * | 2016-05-07 | 2016-07-20 | 张舒维 | Novel intelligent instrument convenient to install |
| CN109001512A (en) * | 2018-09-20 | 2018-12-14 | 苏州工业园区斯博自动化控制设备有限公司 | A kind of electric-power metering ammeter quick replacement device |
| CN112198351A (en) * | 2020-07-24 | 2021-01-08 | 国网山东省电力公司电力科学研究院 | Measurement core and module intelligence batch meter |
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| US20040119458A1 (en) * | 1999-01-27 | 2004-06-24 | Elster Electricity, Llc | Advanced instrument packaging for electronic energy meter |
| EP1431765A2 (en) * | 2002-12-20 | 2004-06-23 | HAGER ELECTRO GmbH | Apparatus for coupling an electric energy meter to a support platform |
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| CN105784026A (en) * | 2016-05-07 | 2016-07-20 | 张舒维 | Novel intelligent instrument convenient to install |
| CN109001512A (en) * | 2018-09-20 | 2018-12-14 | 苏州工业园区斯博自动化控制设备有限公司 | A kind of electric-power metering ammeter quick replacement device |
| CN112198351A (en) * | 2020-07-24 | 2021-01-08 | 国网山东省电力公司电力科学研究院 | Measurement core and module intelligence batch meter |
| CN112198351B (en) * | 2020-07-24 | 2022-08-26 | 国网山东省电力公司营销服务中心(计量中心) | Measurement core and module intelligence batch meter |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109164284A (en) | 2019-01-08 |
| CN105203813B (en) | 2018-10-16 |
| CN109164284B (en) | 2021-02-23 |
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Effective date of registration: 20180817 Address after: 201400 121, room 1, No. 368, Wan Zhong Road, South Bridge Town, Fengxian District, Shanghai Applicant after: SHANGHAI JUREN ELECTRIC POWER TECHNOLOGY CO., LTD. Address before: 310058 Gongshu District, Hangzhou, Zhejiang, 3 homes, 2 units 503, Applicant before: Xu Hehuan |
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