Install and change for the ease of electrical equipment, satisfy in the requirement of changing, not having a power failure in the maintenance process, the time is short, the form that existing breaker of plastic casing has adopted breaker body to separate with the wiring base, breaker body is by the socket aperture on the contact stud insertion wiring base that is provided with on it, realize with the mechanical connection of wiring base be electrically connected, and the I/O end of the termination on the base is connected with circuit respectively.When circuit breaker needs repairing or changes, the breaker body of on-load not can be pulled up from the wiring base, operating process does not need to cut off the input power supply, need not tear, connect the input and output electric wire open.
93104634.3 number patent of invention discloses a kind of draw-out molded case circuit breaker, this circuit breaker is made up of a kind of standing part and moving part that is made of breaker body that occurs with base and frame form, and breaker body is realized being electrically connected by " tulip finger-type " contact and base that the contact lever on it inserts on the base.One of shortcoming of this circuit breaker is that the circuit breaker volume is big, breaker body need take very big power when base is extracted, so that is difficult to extract by hand, for this reason, need auxilliaryly to add the complicated mechanical withdrawing device, have defectives such as product structure complexity, difficulty of processing are big, production cost height.Another shortcoming of this circuit breaker is that the mode of connection of the termination on base or the framework is single, can not satisfy instructions for use multi-direction, the multimode wiring, therefore, has limited its scope of application greatly.
Along with the development of plastic shell type electric appliance technology, the user requires more and more higher to its wiring, and the connection function of electric equipment products often directly influences its purposes.With the circuit breaker is example, and the wiring demand to circuit breaker mainly contains at present: can connect the turnover line from different directions; Can be before plate and plate after wiring; Can dispose terminations such as terminal block, junction pole, cage binding post.But at present the mode of connection that provided of the circuit breaker product of producing is single, can not provide before the plate simultaneously and two kinds of modes of connection behind the plate, can not satisfy the instructions for use of configurable various terminations on identical product, therefore uses very inconvenient.
Another problem that exists in the existing plug-in type breaker of plastic casing is, breaker body is required great effort when base is extracted very much, makes not energetically by hand, and installation and removal are very inconvenient.
In addition, existing plug-in type breaker of plastic casing generally has two kinds of three utmost points and four utmost points, and the plug in support of three utmost points and four-pole circuit breaker is independently, can not be general.Because four utmost point plug in circuit breaker market demands are less, and it is very high to manufacture and design a kind of die cost of special four utmost point plug in support, thereby has strengthened production and use cost.
In sum, the plug in support of existing plastic shell type electric appliance needs improved major defect to be: the mode of connection is single, can not satisfy wiring requirement simultaneously from the turnover line of different directions, can not satisfy before the plate simultaneously and the instructions for use of wiring behind the plate, can not dispose necessary termination such as terminal block, junction pole, cage binding post interchangeably; Extract electrical equipment body effort from base, make not energetically by hand; Can not be general between three utmost point plug in support and four utmost point plug in support, can not make up, use is made troubles, produce and the use cost height.
Summary of the invention
The object of the present invention is to provide a kind of plug in support of plastic shell type electric appliance of a new generation, overcome the number of drawbacks that above-mentioned prior art exists, it can satisfy the wiring requirement from the turnover line of different directions, can be before plate and plate after wiring, can selectively dispose various terminations such as terminal block, junction pole, cage binding post, be provided with the structure that electrical equipment bodies such as circuit breaker easily can be extracted from plug in support, and have the combination function that two bases are bolted together, can be applicable to the electrical equipment such as circuit breaker of various numbers of poles.
To achieve these goals, the present invention adopts following technical scheme.
Plug in support with plastic shell type electric appliance of available for different connection modes and combination function of the present invention, it has and the suitable profile of described electric appliance casing, each base comprises the female component of the contact stud of the output of the utmost point that at least one pair of accepts described electrical equipment body and input, at least one pair of has the termination for inlet wire and outlet wiring of mechanical connection and electric connecting relation respectively with described female component, the multi-functional connecting plate that can connect various terminations is arranged on the female component of each each end of the utmost point; Be provided with a connecting hole in described connecting plate the inner, be used for termination behind described connecting plate, female component and/or the plate being realized mechanical connection simultaneously and being electrically connected, and be fixed on them on the base together; At least one wiring hole is arranged on the outside of each connecting plate, each described wiring hole all can be selectively with a plate before behind termination or the plate before termination or the plate behind termination and the plate termination realize mechanical connection and be electrically connected; Wiring hole in the outermost end of each connecting plate not only can connect various terminations, but also can be used as the binding post that directly is connected with inlet wire or outlet; Contact and socket are arranged in the described female component, the last end interface of the socket of described female component is connected with output or input contact stud on the breaker body, and the following end interface of the socket of described female component is connected with the contact of described female component upper end; The end interface shape matches under the profile of the contact upper end of described female component and the described socket, so that behind the described contact insertion jack interface, can not extract easily; On the contact of described female component, be axially arranged with the screwed hole of a perforation along it, the aperture of described screwed hole is less than the connecting hole on the connecting plate, realizes connecting hole on female component, the connecting plate and the connection between the pilot hole three on the termination with screw by this screwed hole.On each sidewall of described base both sides, be provided with at least one hole or flute profile syndeton,, by this syndeton two bases are fitted together with screw.As: one one utmost point base and one three utmost point base can be assembled into one four utmost point base group.Pitch of holes equalization in order to ensure the jack of adjacent two female components of multipole base group after the assembling, require on two sidewalls on the base faying face respectively with the distance at the jack center of close female component, equal half of jack centre-to-centre spacing of adjacent two female components of multipole base, i.e. half of centre-to-centre spacing between two contact studs on the breaker body.
The exterior cross-section that the contact lower end of described female component embeds base portion is a polygon, so that contact component can not rotate after embedding base.
On described base,, all can dispose before a plurality of multi-form plates termination behind the termination and plate in each connecting groove simultaneously for each utmost point is provided with the L shaped connecting groove of a pair of independently inlet wire and outlet; On each connecting groove side walls, be provided with the grafting groove that is used to install insulating sleeve or insulated envelope.
Described insulating sleeve is a kind of accessory that is used for the charged position on the packing termination, and insulated envelope is a kind of accessory that is used for sealing the vacancy part that termination is not installed in the connecting groove, one end of insulating sleeve and insulated envelope is equipped with the grafting bar that the mutual general grafting groove with in the connecting groove is complementary, insert the grafting groove by the grafting bar, insulating sleeve or insulated envelope are installed in the described connecting groove interchangeably.
On each sidewall of described base both sides, be provided with one and can hold the groove that finger enters, so that described electrical equipment body is easily extracted from plug in support.
On described termination, be equipped with described connecting plate on connecting hole and the pilot hole that is complementary of wiring hole, by described pilot hole, realize that various terminations are interchangeably with the mechanical connection of connecting plate be electrically connected.The overall dimension of described various terminations and the space of described connecting groove are complementary, so that various termination is installed in the connecting groove interchangeably.Described various termination includes but not limited to: various forms of terminal blocks, as I shape terminal block, L shaped terminal block; Various forms of junction poles are as straight-bar, knee; Various forms of sockets are as dolioform socket, tubaeform socket; Various forms of binding posts are as the cage binding post.
In being provided with on the groove muscle end face between described connecting groove and connecting groove big outside little groove, the cross section flute profile of this groove such as C shape, T shape or swallow-tail form, an edge of an interpolar dividing plate made from insulating material, be provided with connected structure with groove cross section flute profile coupling, be used for the interpolar dividing plate is plugged in the groove, with being in contact with one another of inlet wire between the prevention utmost point and the utmost point or outlet.
The insulating sleeve of a described suitable junction pole is intercepted length as required, with the needs of the mode of connection behind the plate that satisfies different spaces; A kind of cross section is square junction pole, can utilize the characteristics of its square-section, make its terminals wiring hole towards being mounted to required direction, with the wiring requirement of the turnover line that satisfies different directions.
This shows that the termination of plug in support of the present invention has the advantage that realizes multi-form configuration selectively, interchangeably, can be the user the various modes of connection of wiring after the wiring and plate are provided before the plate.Plug in support of the present invention can be formed the plug in support group of various numbers of poles easily by the form of a utmost point base and three utmost point bases.
Plug in support of the present invention can make finger can make energetically by the groove on it, so that described electrical equipment body is easily pulled up from base.The structure of insertion base of the present invention and principle not only can be used for the plug in support of breaker of plastic casing, but also can be used for the plug in support of the electrical equipment of other type.
Below be example with the breaker of plastic casing, specify an embodiment of electrical equipment plug in support of the present invention in conjunction with the accompanying drawings, the plug in support of plastic shell type electric appliance of the present invention is not limited to following examples.
The plug in support of breaker of plastic casing of the present invention as shown in Figure 1 is a plug in support group of being made up of a utmost point base 6 and three utmost point bases 4, has the profile suitable with case for circuit breaker.Extremely go up in each of base 4 or 6, be provided with a pair of input, accessory power outlet parts 201,202, be provided with a pair of output, the input contact stud 301 and 302 that can be respectively be connected on extremely in each of breaker body 1 with input and output female component 201,202 on the base, breaker body 1 is by the described contact stud 301 and 302 of each utmost point on it, the corresponding female component 201 and 202 that inserts each grade on the base 4 or 6, realize between breaker body 1 and plug in support 4 and 6 mechanical connection be electrically connected.
As shown in Figure 2, each female component 201 of every utmost point or 202 is formed by a dolioform socket 19, two springs 18 and 20, contacts 21 and an insulating case 7 on the plug in support 4 of the present invention or 6.The outer end of dolioform socket 19 can be inserted for the contact stud 301 on the breaker body 1 or 302, to realize with the mechanical connection of breaker body 1 and to be electrically connected.The inner of dolioform socket 19 is realized fixedlying connected of machinery and electricity with the upper end of contact 21 in the socket mode.Dolioform socket 19 is the cover barrel structure that axially connects, and is provided with the groove structure around the jacket wall two ends.Spring 18 and 20 is extension spring, lock ring is at the two ends of dolioform socket 19 respectively, by the pulling force of spring and the groove structure on the jacket wall, make the tightness degree that reaches desirable that is connected between dolioform socket 19 and contact stud 301, the contact 21, to reduce contact resistance and temperature rise.Dolioform socket 19 is installed in the insulating case 7 of barrel-like structure, exposes, promotes safe class to prevent the live part on it.The bucket of insulating case 7 has a jack 702 at the end, is formed with an outwards outstanding elasticity ligule projection 701 on the one sidewall.Does not expose outside the insulating case 7 with the charged position of guaranteeing dolioform socket less than the outer end diameter of dolioform socket 19 in the aperture of jack 702.Be provided with the connecting hole 2 of a pair of mounting receptacle parts 201 or 202 on extremely in each of plug in support 4 or 6.The sidewall of connecting hole 2 and diapire 402 (shown in Figure 3) and base 4 or 6 are for being made into integration, and diapire 402 has mounting receptacle parts 201 (or 202) and carrying is exported, the required mechanical strength of input wires device.Be provided with a hole clipping 401 (shown in Figure 3) that can allow the ligule projection 701 on the described insulating case 7 to embed on the lateral wall of connecting hole 2, when with dolioform socket 19, contact 21, spring 18 and 20, after insulating case 7 assembles by direction shown in Figure 2, insert in the lump in the connecting hole 2, clamping by the hole clipping 401 on projection 701 of the ligule on the insulating case 7 and connecting hole 2 lateral walls, the interior insulating case 7 that female component is housed is installed in the connecting hole 2, and makes insulating case 7, dolioform socket 19, contact 21, spring 18 and 20 can not be encapsulated in the connecting hole 2 with freely deviating from.The interface shape of the upper end profile of contact 21 and dolioform socket 19 the inners matches, can not extract behind the interface that inserts it into dolioform socket 19 the inners, and make the tightness degree that reaches desirable that is connected between contact 21 and the dolioform socket 19, to reduce contact resistance and temperature rise.
As Fig. 2, shown in Figure 3, the middle part profile of each contact 21 on the plug in support 4 of the present invention or 6 is the hexagon shaft shoulder 212, and the lower end of the contact 21 that links to each other with the shaft shoulder is the pylon 213 of diameter less than the described shaft shoulder 212.Be provided with a through hole on the base wall 402 in the connecting hole 2 on plug in support 4, the shape and size of the pylon 213 on the hole shape of this through hole and size and the hexagon shaft shoulder 212 are complementary, can not rotate after making contact 21 embed this through hole, so that contact 21 and other termination are fastenedly connected.Along contact 21 axially have a screwed hole of centre 211 that connects, contact 21 is by this screwed hole, realizes with the mechanical connection of various terminations and is electrically connected.
As shown in Figure 3, the lower end of contact 21 is connected with I shape connecting plate 9.Three holes 901,902 and 903 are arranged on I shape connecting plate 9, hole 902 in the middle of the I shape connecting plate 9 is a location hole, the mutual clamping of a projection of stretching out on the lateral wall by the described connecting hole 2 on location hole 902 and the base 4 or 6 realizes the location between I shape connecting plate 9 and base 4 or 6.Screwed hole 211 corresponding matching on the connecting hole 901 of I shape connecting plate 9 the inners and the contact 21 realize the mechanical connection of I shape connecting plate 9 and contact 21 and termination and are electrically connected, and they and base 4 (or 6) are fixed together.The wiring hole 903 of I shape connecting plate 9 outer ends is used for connecting into and out of line before the plate, also can be used for the preceding various terminations of connecting plate.
As Figure 1-3, junction pole 11 and 12 is the terminations that are used for wiring behind the plate.Junction pole 11 and 12 is the elongate rod of square-section, and the end face of one end is square, and the other end is flat tabular.A screw-type pilot hole 121 is arranged, by itself and contact 21 and I shape connecting plate 9 are realized mechanical connections and being electrically connected in this hole 121 on the square end surface of junction pole 11 and 12.Tabular end in junction pole 11 and 12 has a wiring hole 122, by this wiring hole and auxiliary screw, nut (seeing Fig. 1,2), with junction pole 11 or 12 and inlet wire or outlet realize conventional mechanical connection and be electrically connected.Junction pole 11 and junction pole 12 are except length is different, and other is all identical.
The aperture of the connecting hole 901 on the I shape connecting plate 9 should be greater than the diameter of the screwed hole on the contact 21 211, so that after standard screws can pass connecting hole 901, realize being threaded with screwed hole 211, to satisfy the connection needs of various terminations.The diameter of the screwed hole 211 on the contact 21 should be greater than the diameter of the screw-type pilot hole 121 on junction pole 11 and 12, so that after standard screws can pass screwed hole 211, realize being threaded with screw-type pilot hole 121.The effect of junction pole 11 and 12 square-section is that its installation direction can be selected as required, i.e. the wiring hole 122 of tabular end towards being provided with on demand, to satisfy the wiring needs into and out of line that connect from different directions.
Further specify the wiring operation principle of the various modes of connection of plug in support of the present invention below in conjunction with accompanying drawing 1-3.
Shown in Fig. 1-3 is that plug in support of the present invention provides before the plate situation of the mode of connection after the mode of connection and plate simultaneously.Behind the screwed hole 211 and the connecting hole 901 on the I shape connecting plate 9 that pass from dolioform socket 19 directions with long spiro nail 17 on the contact 21, carry out screw threads for fastening with pilot hole 121 on the termination junction pole 12 behind the plate and be connected, make dolioform socket 19, contact 21, I shape connecting plate 9 and junction pole 12 realize tight, firm mechanical connection successively mutually and be electrically connected.At this moment, the wiring hole 903 in the outer end of I shape connecting plate 9, but both terminations before the connecting plate, but also termination behind the connecting plate, also termination behind termination and the plate before the connecting plate simultaneously.This shows, before plug in support of the present invention provides plate simultaneously behind the mode of connection and the plate during mode of connection, termination can be by the wiring hole 903 of I shape connecting plate 9 outer ends before the various plates, realize with the machinery of I shape connecting plate 9 and be electrically connected, termination can be by the connecting hole 901 of I shape connecting plate 9 the inners and the wiring hole 903 of outer end behind the various plates, realize with the machinery of I shape connecting plate 9 and be electrically connected, the wiring hole 903 of I shape connecting plate 9 outer ends also can be used as and inlet wire or the direct-connected binding post of outlet when not disposing termination.
Be not difficult to draw following execution mode by Fig. 1-3 and above-mentioned explanation: before plug in support of the present invention only need provide plate during the mode of connection, available screw (not shown) is passed the connecting hole 901 of the inner of I shape connecting plate 9, be threaded with screwed hole 211 on the contact 21 again, make contact 21 and I shape connecting plate 9 realize tight, firm mechanical connection and be electrically connected, can easily be connected to various plates before termination I shape connecting plate 9 on by the wiring hole 903 of I shape connecting plate 9 outer ends this moment.
Be not difficult to draw following execution mode by Fig. 1-3 and above-mentioned explanation: after plug in support of the present invention only need provide plate during the mode of connection, available screw 17 is from dolioform socket 19 directions, pass screwed hole 211 on the contact 21 and the connecting hole 901 of I shape connecting plate 9 the inners, again with plate after assembling screw 121 on the termination carry out screw threads for fastening and be connected, perhaps pass the pilot hole (not shown) on the termination and the connecting hole 901 of I shape connecting plate 9 the inners behind the plate with termination direction behind the auxiliary screw (not shown) slave plate, again with contact 21 on screwed hole 211 carry out fastening machinery and electric being threaded.Simultaneously, the wiring hole 903 of the outer end of I shape connecting plate 9 also can provide the access of termination behind the various plates.This shows that the connecting hole 901 that termination not only can be by I shape connecting plate 9 the inners behind the various plates, but also can be by the wiring hole 903 of outer end is realized with the mechanical connection of I shape connecting plate 9 simultaneously and is electrically connected.
Further specify the structure of the connecting groove and the insulating sleeve of plug in support of the present invention below in conjunction with accompanying drawing 1-3 and Fig. 5.
Extremely go up in each of plug in support of the present invention, all be provided with the independently connecting groove that a pair of inlet wire and outlet are used, inlet wire connecting groove and outlet connecting groove are symmetrically distributed, the physical dimension of the connecting groove of each utmost point is identical, each connecting groove all has following feature: described connecting groove is L shaped groove, be divided into 410,408 and 409 3 zones as shown in Figure 3,410 zones are used to dispose termination before the plate, and 408 and 409 zones are used to dispose termination behind the plate.This shows, termination behind termination and at least 2 plates before all configurable at least 1 plate of the inlet wire of each utmost point of plug in support of the present invention (or outlet), increase the configurable number of termination if desired on this basis, can L shaped connecting groove is extending transversely (prolong I shape connecting plate 9 thus simultaneously and increase the quantity of the wiring hole 903 on the I shape connecting plate 9), to obtain newly-increased wiring with the zone.Below L shaped connecting groove one sidewall, be provided with four grafting grooves 404,405,406,407, below another sidewall on L shaped connecting groove opposite, also be provided with corresponding grafting groove (not shown), in order to accessory insulating sleeve 25 and insulated envelope 24 to be installed.The both sides of described insulating sleeve 25 and insulated envelope 24 be provided with connecting groove on grafting groove 404,405 or the grafting bar of 406,407 suitable protrusions, insert accordingly in the grafting groove by this grafting bar, can easily insulating sleeve (25) or insulated envelope (24) be installed in the connecting groove of base 4.Shape after the assembling and position such as Fig. 2, shown in Figure 5.
As Fig. 2 and shown in Figure 5, insulated envelope 24 is the short sheath of end sealing, and its function is used for sealing the vacancy part of the connecting groove on the base, and the live part in the connecting groove is not exposed, to improve class of safety protection.Insulating sleeve 25 is a kind of uncovered long sheath that is applicable to shaft-like termination, and its structure as shown in Figure 6 and Figure 7.Insulating sleeve 25 is a tubular structure, can contain junction pole 12 in the tube chamber, be provided with several breach (marked in as Fig. 5 41,42) in the part of no grafting bar, these breach are the length that is used for intercepting insulating sleeve 25, with the installation needs of the junction pole that satisfies different length.This shows, the structure of the insulating sleeve on the termination is not limited to above embodiment, but can set according to actual needs, but no matter the insulating sleeve of which kind of structure, its must have with base on the suitable grafting mounting structure of connecting groove, the grafting groove of this grafting mounting structure such as the embodiment of the invention and grafting bar.
In order selectively to dispose various terminations, termination is arranged to universal standard part form behind preceding termination of the various plates of plug in support of the present invention and the various plate.At first be that on the various terminations and mechanical connection I shape connecting plate 9 and the syndeton that is electrically connected are general, interchangeable, described syndeton adopts following execution mode: on various terminations, all have one with the suitable connector of I shape connecting plate 9, on this connector, be provided with a pilot hole; The described pilot hole screw-type pilot hole littler that can be a diameter than the screwed hole on the contact 21 211, pass screwed hole 211 on the contact 21 and the connecting hole 901 on the I shape connecting plate 9 with a screw, be threaded with described pilot hole again, with the machinery of realizing I shape connecting plate 9 and the close and firm of termination be electrically connected; Described pilot hole also can be a diameter than the screwed hole on the contact 21 211 big and with suitable through hole or the groove of connecting hole 901 on the I shape connecting plate 9, pass pilot hole on the termination or the connecting hole 901 (or wiring hole 903) on groove and the I shape connecting plate 9 with a diameter than described pilot hole or the little screw of groove, be threaded with screwed hole 211 on the contact 21 again, with the machinery of realizing I shape connecting plate 9 and the close and firm of termination be electrically connected.Because above-mentioned related screw, nut and screw all meet GB, so, just can realize general, the interchangeable mechanical connection between various terminations and the I shape connecting plate 9 and be electrically connected by above-mentioned syndeton.
Next is that the overall dimension of various terminations is general, interchangeable, described overall dimension has following execution mode: the connecting groove of each end of each utmost point on the profile of various terminations and size and plug in support 4 or 6 is suitable, space and grafting groove mounting structure in the connecting groove of each end of each utmost point on the overall dimension of the insulating sleeve on the various terminations and grafting mounting structure and plug in support 4 or 6 are suitable, so that various termination and insulating sleeve energy thereof are installed in the connecting groove of each end of each utmost point on base 4 or 6 generally, interchangeably.In a word, by the versatility and the interchangeability of above-mentioned described syndeton and overall dimension, can realize versatility and interchangeability between the various terminations.Above-described various termination includes but not limited to: various forms of terminal blocks, as I form terminal block, L shaped terminal block; Various forms of junction poles are as straight-bar, knee; Various forms of binding posts are as cage binding post 22.
Shown in accompanying drawing 4,5, between the utmost point of the both sides of the end of incoming cables of plug in support of the present invention and leading-out terminal and the utmost point, be provided with interpolar dividing plate 8, its effect is the wiring that cuts off between the utmost point and the utmost point, prevents to be in contact with one another between the wiring, to improve the insulation safety degree of protection.The execution mode of interpolar dividing plate 8 is as follows: on the end face of the muscle of the utmost point of three utmost point bases 4 and the connecting groove between the utmost point, being provided with big outside little groove 43, the channel-section of groove 43 such as swallow-tail form, T shape, C shape, one side of the interpolar dividing plate made from insulating material 8 is provided with the connected structure that is complementary with groove cross section flute profile, is used for interpolar dividing plate 8 is inserted in the groove 43.
Shown in Fig. 1,2,4,5 is the embodiment that is assembled into four utmost point bases by a utmost point base 6 and three grades of bases 4.On the two side of plug in support 4 of the present invention or 6, be provided with three groove shape structures 411 and 601, pass through syndeton 411 and 601, a utmost point base 6 is assembled with three grades of bases 4 be in the same place, make it become one four utmost point base group with three screw-nuts 5.In order to ensure the jack of the female component 201 of the every end of four utmost point base groups that is assembled into or 202 and the centre-to-centre spacing equalization of adjacent jack, with with breaker body 1 on the contact stud 301 or 302 of spacing equalization suitable, on the base 6 and the faying face of the two side on 4 respectively with the distance at the jack center of close female component, equal half of jack centre-to-centre spacing of adjacent two female components on three utmost point bases 4.
Shown in Fig. 1,3, plug in support 4 of the present invention and 6 two side, middle part near with end face that breaker body 1 is connected on, be provided with two and can hold the groove 13 and 14 that finger enters, groove 13 and 14 can be different shapes such as U-shaped, rectangle, its effect is to be convenient to breaker body 1 is easily extracted on base 4 or 6, and finger can be made energetically when pulling out breaker body.
Shown in Fig. 4,5, according to user's difference needs are installed, plug in support of the present invention has designed two kinds of mounting meanss: a kind of is with the two row installing holes 46 of screw by base (4 and 6) two ends base to be fixed on the installation base plate; Another kind is with the various installing holes 31,32,36,37 of screw by the bottom of plug in support base to be fixed on the DIN guide rail.Because installing and fixing of base is prior art, so carefully do not state at this.