Background technology
The electric unit device of aforesaid control unit be by one for realize the main switching devices that circuit is switched on or switched off (can be control and protective switching device, english abbreviation be: CPS) with one for the combined assembly of the multipole converting switch device being connected with the load end of main switching devices.Multipole converting switch device is to use by the wherein two-phase power supply in the three phase mains of switching motor the control apparatus of realizing motor commutation, and be used in conjunction with main switching devices, reach reversible, two-way, the star triangle of motor or double speed are controlled and the object such as adjusting, and main switching devices works to be switched on or switched off circuit as aforementioned, can be referring to Chinese patent Granted publication CN203039282U to this.
Prior art mainly contains following two kinds by multipole converting switch device and main switching devices mode connected to one another: the one, and adopt traditional wiring that both are connected, particularly, by wire, the holding wire between multipole converting switch device and main switching devices is connected to each other, the shortcoming of this mode is that wiring is comparatively loaded down with trivial details, especially easily produces wiring error, the 2nd, by a link block, multipole converting switch device and main switching devices are connected to each other, this mode has and connects efficient and convenient and can avoid the strong point of wiring error, but owing to adopting link block, thereby very harsh to the mismatch error of multipole converting switch device and main switching devices and link block, when there is error, can make link block be difficult to even multipole converting switch device to be connected with main switching devices, especially, even if realized limpingly both connections, but the assembling due to each parts, matching problem, can make junction have stress to exist, stress exists and very easily causes correlated parts to damage for a long time.
Under the impact of the foozle factor that is objectively difficult to avoid in multipole converting switch device, main switching devices and link block, the coefficient of thermal expansion and contraction that environmental change causes and material oneself factor etc., mutual interference situations while being connected between link block and multipole converting switch device and main switching devices, do not wish to occur but the stress problem that must occur suffers from industry for a long time, and expectation is solved and is used the reliable connection effect between guarantee three.But in disclosed China and foreign countries patent and non-patent literature, be showed no all corresponding technology enlightenments up to now.
For above-mentioned prior art, the applicant has done positive and useful design, finally formed technical scheme described below, and taked the place the applicant under secrecy provision to test to deduce analog form, it is practicable that result proves.
Summary of the invention
Task of the present utility model is to provide a kind of link block that helps avoid when being connected with multipole converting switch device and main switching devices, in junction, to occur stress and use and ensure being connected effect and avoiding occurring the parts electric unit device of the control unit of damage too early between link block and multipole converting switch device and main switching devices.
Task of the present utility model completes like this, a kind of electric unit device of control unit, comprise for being switched on or switched off a main switching devices of circuit, for the multipole converting switch device that is connected with the load end of main switching devices and a link block for main switching devices is connected with multipole converting switch device, at described main switching devices, towards one end of described multipole converting switch device, be provided with a first signal connector, and at multipole converting switch device, towards one end of main switching devices, be provided with a secondary signal connector, described link block is connected to first, between secondary signal connector, feature is: described link block comprises shell, this shell has one first port and one second port, the first port is pegged graft and is coordinated with described first signal connector, and the second port coordinates with described secondary signal connector grafting, wherein: in described the first port and the second port, have at least a port to slide with respect to described shell.
In a specific embodiment of the present utility model, the first described port comprises one group of the first terminal and one first housing, and the second described port comprises one group of second terminal and one second housing, one group of the first terminal is fixed on the first housing, one group of second terminal is fixed on the second housing, the first terminal and the second terminal are realized electrical connection each other by flexible connection line, and in described the first housing and the second housing, have at least a housing to slide with respect to described shell, and the first described housing and the second housing all match with described shell.
In another specific embodiment of the present utility model, in the bottom of described main switching devices, form and have one first guide rails assembling groove, and form in the bottom of described multipole converting switch device, there is one second guide rails assembling groove, in the first guide rails assembling groove, be equipped with one first guide rail, and in the second guide rails assembling groove, be equipped with one second guide rail, and between the first guide rails assembling groove and the second guide rails assembling groove, be provided with one for the guide rail lock piece to described the first guide rail and the second guide rail locking.
In another specific embodiment of the present utility model, in a side of the length direction of described the first guide rails assembling groove, form and have one first guide rail lock piece engaging chamber, and form in a side of the length direction of described the second guide rails assembling groove, there is one second guide rail lock piece engaging chamber, on described guide rail lock piece and in the position corresponding to the first guide rail lock piece engaging chamber, form and have one first lock piece snap close, this the first lock piece snap close matches with the first guide rail lock piece engaging chamber, and form, there is one second lock piece snap close on guide rail lock piece and in the position corresponding to the second guide rail lock piece engaging chamber, this the second lock piece snap close matches with the second guide rail lock piece engaging chamber, by the first lock piece snap close, engage the cooperation in chamber and described the first guide rail is limited in described the first guide rails assembling groove with the first guide rail lock piece, by the second lock piece snap close, engage the cooperation in chamber and described the second guide rail is limited in described the second guide rails assembling groove with the second guide rail lock piece.
In another specific embodiment of the present utility model, described shell comprises a case and a drain pan, and case and drain pan engage with each other fixing, described the first housing and drain pan and be configured to integrative-structure, and described the second housing and drain pan are slidably matched.
Of the present utility model, also have in a specific embodiment, on described drain pan, form and have drain pan card base and offer drain pan opening, drain pan card base and described the second housing fasten, and the lower end of the second housing convexes with housing port, this housing port holds slidably and fits in described drain pan opening.
More of the present utility model and in a specific embodiment, on the second described housing and the top that is positioned at the second housing form and have card base to coordinate shoulder, described drain pan card base coordinates with card base to take on and fastens.
In of the present utility model and then a specific embodiment, described shell comprises a case and a drain pan, and case and drain pan engage with each other fixing, described the first housing and drain pan and be slidably matched, and described the second housing and drain pan are configured to integrative-structure.
Of the present utility model again more and in a specific embodiment, on described drain pan, form and have drain pan card base and offer drain pan opening, drain pan card base and described the first housing fasten, and the lower end of the first housing convexes with connectivity port, this connectivity port holds slidably and fits in described drain pan opening.
The technical scheme that the utility model provides due to by least one port design in the first port of shell and the second port for to slide with respect to shell, thereby when being implemented to be connected by link block with multipole converting switch device each other, main switching devices can compensate the error of the generations such as manufacture and/or assembling, guarantee reliable connection the between link block and main switching devices and multipole converting switch device, and can effectively eliminate stress and the problem of the damage parts that cause.
Embodiment
Refer to Fig. 1 and Fig. 2, provided the utility model control unit electric unit device structural system for being switched on or switched off a main switching devices 1 of circuit, for the multipole converting switch device 2 that is connected with the load end 12 of main switching devices 1 and a link block 3 for main switching devices 1 is connected with multipole converting switch device, the left end that at main switching devices 1 towards one end of multipole converting switch device 2 is location status shown in Fig. 1 is provided with first signal connector 11, and at multipole converting switch device 2, towards one end of main switching devices 1, be that the right-hand member of location status shown in Fig. 1 is provided with a secondary signal connector 21, aforesaid link block 3 is connected to first, secondary signal connector 11, between 21, that is to say that link block 3 is connected with first signal connector 11 and secondary signal connector 21 simultaneously.As shown in Figure 1, at main switching devices 1, on the end face of one end of multipole converting switch device 2, form and have hook groove 13, and form on the end face of one end of main switching devices 1 at multipole converting switch device, there is hook pin 23, hook pin 23 matches with hook groove 13, particularly, by hook pin 23 inserts hook groove 13, multipole converting switch device 2 and main switching devices 1 are linked, the power supply terminal 24 of multipole converting switch device 2 and the face terminals of main switching devices 1 14 are mutually pegged graft and are coordinated simultaneously, and by the terminal screw on main switching devices 1, realizing both being electrically connected to of (both referring to power supply terminal 24 and face terminals 14 for this) fixes.
Refer to Fig. 3 and Fig. 4 and in conjunction with Fig. 1 and Fig. 2, the technical essential of the technical scheme providing as the utility model: aforesaid link block 3 comprises shell 30, this shell 30 has one first port 31 and one second port 32, the first port 31 is pegged graft and is coordinated with aforesaid first signal connector 11, and the second port 32 coordinates with aforesaid secondary signal connector 21 grafting, in the first port 31 and the second port 32, has a port at least with respect to shell 30 slips (also will describe in detail) below.
In the bottom of aforementioned main switching devices 1, form and have one first guide rails assembling groove 10, and form in the bottom of aforesaid multipole converting switch device 2, there is one second guide rails assembling groove 20, in the first guide rails assembling groove 10, be equipped with one first guide rail 7, and in the second guide rails assembling groove 20, be equipped with one second guide rail 8, and between the first guide rails assembling groove 10 and the second guide rails assembling groove 20, be provided with one for the guide rail lock piece 6 to the first guide rail 7 and the second guide rail 8 lockings (also can claim to limit).
Aforementioned guide rail lock piece 6 matches with the bottom surface of main switching devices 1 and multipole converting switch device 2 by being positioned at the alar part nearly middle part and that be positioned at both sides 63 of the length direction of guide rail lock piece 6 simultaneously, be arranged on the installation bottom surface of multipole converting switch device 2 and main switching devices 1, and extend through main switching devices 1 from the converting switch device load end 22 of multipole converting switch device 2 always, because install on bottom surface and be respectively arranged with the strip groove suitable with mounting guide rail lock piece 6 in corresponding position at multipole converting switch device 2 and main switching devices 1, guide rail lock piece 6 can sliding to direction interpolation along both.The first guide rail 7 and the second guide rail 8 are respectively installed in the first guide rails assembling groove 10 and the second guide rails assembling groove 20 of main switching devices 1 and multipole converting switch device 2, in a side of the length direction of the first guide rails assembling groove 10, form and have one first guide rail engaging chamber 101, and form in a side of the length direction of the second guide rails assembling groove 20, there is one second guide rail engaging chamber 201, on guide rail lock piece 6 and in the position corresponding to the first guide rail lock piece engaging chamber 101, form and have one first lock piece snap close 61(also can claim the first lock piece fore shaft, as follows), and form on guide rail lock piece 6 and in the position corresponding to the second guide rail lock piece engaging chamber 201, there is one second lock piece snap close 62(also can claim the second lock piece fore shaft, as follows), by the first lock piece snap close 61, match guide rail is fixed in the first guide rails assembling groove 10 with the first guide rail engaging chamber 101, by the second lock piece snap close 62, match guide rail is fixed in the second guide rails assembling groove 20 with the second guide rail engaging chamber 201.
Figure 2 illustrates the spring 64 of the structural system that belongs to guide rail lock piece 6, one end of this spring 64 is resisted against on the spring catch prominent 65 being directly formed on guide rail lock piece 6, the other end is resisted against on the bottom surface of main switching devices 1, visible, spring 64, between guide rail lock piece 6 and the bottom surface of main switching devices 1, makes the first lock piece snap close 61 have all the time the power of the compression of direction guiding rail 7 by spring 64.Provided the spring steel wire 66 of the structural system that belongs to equally guide rail lock piece 6, these spring steel wire 66 two ends are resisted against baffle plate 25 places (Fig. 2 shows) that multipole converting switch device 2 is installed on bottom surface, opening 67 places (Fig. 1 shows) at guide rail lock piece 6 are affiliated to by deformation in the middle part of spring steel wire 66, make the second lock piece snap close 62 have all the time the power that direction guiding rail 8 compresses.By the acting in conjunction of spring steel wire 66 and spring 64, guide rail 8,7 is blocked.Guide rail lock piece 6 has a notch 68, when needs by electric unit device when guide rail is pulled down, that is to say when will be by main switching devices 1 and multipole converting switch device 2 respectively when the first guide rail 7 and the second guide rail 8 unload, only need insert in the notch 68 of guide rail lock piece 6 with instrument, and outwards prize, make guide rail lock piece 6 remove fixing first, second guide rail 7,8.
Main switching devices 1 and multipole converting switch device 2 also can adopt the fixed form of non-guide rails assembling, for example, by the installed part 2A being illustrated by Fig. 2,2B extracts out from multipole switch device 2, installed part 2C is fixed installed part can be realized with screw after main switching devices 1 is extracted out simultaneously.
As aforementioned, on main switching devices 1, be provided with first signal connector 11, on multipole converting switch device 2, be provided with secondary signal connector 21, by a link block 3, realize the electrical connection between first signal connector 11, secondary signal connector 21.Aforementioned link block 3 comprises shell 30, the first port 31 plugging with first signal connector 11 and the second port 32 plugging with secondary signal connector 21.Aforementioned the first port 31 comprises the first terminal 311 and the first housing 312, and the second port 32 comprises the second terminal 321 and the second housing 322, the first terminal 311 and the second terminal 321 are realized electrical connection by flexible connection line, the first terminal 311 is fixed on the first housing 312, the second terminal 321 is fixed on the second housing 322, owing to having at least one can opposite shell 30 slide among the first housing 312 and the second housing 322, thereby confirmed that in the first terminal 31 that applicant said and the second terminal 32, to have terminal at least be in the above the statement of sliding with respect to shell 30.
Please emphasis referring to Fig. 3,4,5,6, shell 30 comprises case 301 and drain pan 302, is provided with buckle 3011 on case 301, is provided with bayonet socket 3025 on drain pan 302, the cooperation by buckle 3011 and bayonet socket 3025 realizes being fixed of case 301 and drain pan 302.
One end of drain pan 302 offers drain pan opening 3022, on the other end, one forms aforesaid the first housing 312, the bottom of the first housing 312 is also that the below of drain pan 302 other ends has extended main switching devices connectivity port 3024, the first terminal 311 is fixed on (being one end of drain pan 302) on the first housing 312, during first signal connector 11 inserting on main switching devices connectivity port 3024 and main switching devices 1, the first terminal 311 shows with the contact pin 9(Fig. 6 in first signal connector 11) engage and realize electrical connection.As Fig. 4, shown in 5, the bottom of the second housing 322 convexes with drain pan port 3222, on drain pan 302 and on the shell wall of the top position of drain pan opening 3022, be provided with drain pan card base 3021, drain pan card base 3021 coordinates shoulder 3221 to fasten with the card base of the second housing 322 upper ends, housing port 3222 appearances fit in drain pan opening 3022, the bottom surface 3224 of the second housing 322 contacts with the inner surface 3023 of drain pan 302, the length (left and right directions of location status shown in Fig. 4 is length direction) that the length of drain pan opening 3022 is greater than housing port 3222 can opposite shell 30 plugs the second housing 322 direction at multipole converting switch device 2 and main switching devices 1 is slided.As shown in Figure 5, on the second housing 322, offer slot 3223, the first terminal 311 forms by several structures connector 4 identical and that be shown in detail by Fig. 6 with the second terminal 321, connector 4 is comprised of three parts: the retained part 41 being connected with contact pin (aerial lug) 9, for welding the installed surface 42 of flexible connection line, with for installing, fixing inserted sheet 43, on inserted sheet 43, be provided with barb 431, by interference fit, be inserted in the slot 3223 of the second housing 322 and the slot of the first housing 312, prevent that connector 4 from dropping out in disassembly process in shell.Housing port 3222 holds the bottom surface that fits in drain pan opening 3022 and be stuck in drain pan 302, during the secondary signal connector 21 phase inserting of housing port 3222 and multipole converting switch device 2, the second terminal 321 engages to realize with contact pin in secondary signal connector 21 and is electrically connected to.On the position of corresponding main switching devices 1 load end 13 of link block 3, offer through hole 36, by through hole 36, can realize the operation of the electric unit device major loop binding post to forming after being connected with multipole converting switch device 2 by main switching devices 1.
Drain pan 302 of the present utility model and the first housing 312 one form, the second housing 322 is slidably arranged on shell 30, between main switching devices 1 and multipole converting switch device 2, be equipped with error, or secondary signal connector 21 installs when not in place in multipole converting switch device, can compensate by the movement of the second housing 322 the installation incomplete phenomena causing due to rigging error.Certainly, see Fig. 7, also can be arranged to the first housing 312 is movably arranged on drain pan 302, the second housing 322 is configured to one with drain pan 302, on drain pan 302, form and have drain pan card base 3021 and offer drain pan opening 3022, drain pan card base 3021 and the first housing 312 fasten, and the lower end of the first housing 312 convexes with connectivity port 3024, and this connectivity port 3024 holds and fits in described drain pan opening 3022 slidably.In addition, also can be arranged to the first housing 312 and movably be arranged on drain pan 302, meanwhile, the second housing 322 is also movably arranged on drain pan 302, and further situation not in place is installed in compensation.
As Fig. 3, 4, the first terminal 311 of the present utility model consists of 6 connectors 4, the second terminal 321 consists of 4 connectors 4, in 6 connectors 4 of the first terminal 311, 2 for transmitting power control signal, other 4 for transmitting main contacts state auxiliary signal, comprise that 2 for normally opened contact signal, 2 for normally-closed contact signal, power control signal and normally-closed contact signal transfer in multipole converting switch device 2 by 4 connectors of the second terminal 321, and normally opened contact signal shows by the terminal block terminal 5(Fig. 4 being fixed in shell 30) directly outwards output.Normally-closed contact signal transfers in multipole converting switch device 2, has realized electrical interlock, and only in the situation that main switching devices 1 disconnects, multipole diverter switch electrical equipment 2 could move.
The connector of the first terminal 311 of the present utility model and the second terminal 321 is not limited to above-mentioned quantity.
In a word, the utility model is because at least one port slides with respect to shell 30, thereby be equipped with error between main switching devices 1 and multipole converting switch device 2, or connector 21 installs when not in place in multipole converting switch device 2, can compensate by the movement of port the installation incomplete phenomena causing due to rigging error.