A kind of current transformer device that is used for mold cased circuit breaker
Technical field
The utility model belongs to the low-voltage moulded case circuit breaker technical field, is specifically related to a kind of current transformer device that is used for mold cased circuit breaker.
Background technology
Existing plastic shell low voltage breaker in order to realize intelligent Detection ﹠ Controling, needs to adopt three current transformers that three-phase current is taken a sample.At present, the mounting means of three current transformers is directly the three to be fixed in the mounting seat one by one, and its installation and inspection operation are all very not convenient.
The utility model content
The purpose of this utility model provides all a kind of comparatively easily current transformer device that is used for mold cased circuit breaker of a kind of installation and maintenance operation.
The technical scheme that realizes the utility model purpose is: a kind of current transformer device that is used for mold cased circuit breaker comprises current transformer, is used to put the base of described current transformer and the lid that matches with described base; Be provided with storing chamber, the installing port that is used to put into current transformer that is used to put described current transformer, the positioning boss that is used for the location current instrument transformer in the described base 2; The center of described positioning boss is provided with routing hole, and described lid is provided with the open-work that matches with described positioning boss center routing hole.
In the technique scheme, the quantity of described current transformer is three, is provided with three in the described base and puts chamber and three positioning boss; Described lid is provided with three open-works.
In the technique scheme, described lid is connected with described base snap fit.
In the technique scheme, described current transformer comprises square shape yoke and the coil of two diffraction on yoke, and described two coils are oppositely arranged on the two ends of yoke; Described yoke is set on the described positioning boss.
In the technique scheme, be filled with insulating resin between the space of described current transformer and described base inner wall.
The utlity model has positive effect:
(1) in the utility model, is provided with storing chamber, the installing port that is used to put into current transformer that is used to put described current transformer, the positioning boss that is used for the location current instrument transformer in the described base; The center of described positioning boss is provided with routing hole, and described lid is provided with the open-work that matches with described positioning boss center routing hole.The utility model has provided a kind of new mounting means in itself, adopt base and lid that three current transformers are fixed into one, get final product in the mounting seat that base need be fixed on mold cased circuit breaker during installation, during maintenance, can open lid, take out each current transformer it is detected, so, the utlity model has in installation and maintenance operating aspect advantage comparatively easily.
(2) in the utility model, described current transformer is common current transformer, comprises square shape yoke and the coil of two diffraction on yoke, and described two coils are oppositely arranged on the two ends of yoke; Described yoke is set on the described positioning boss.The current transformer of this kind structure and described base just in time cooperatively interact, and are installed in the base easily.
Description of drawings
Fig. 1 is a kind of perspective view of the present utility model;
Fig. 2 is a kind of blast structural representation of current transformer device shown in Figure 1;
Fig. 3 is a kind of perspective view of current transformer in the current transformer device shown in Figure 1;
Fig. 4 is a kind of structural representation of current transformer shown in Figure 3 when observing from the side.
Be labeled as shown in the accompanying drawing: current transformer 1, yoke 11, coil 12, seat 2 is put chamber 21, installing port 22, positioning boss 23, routing hole 24, lid 3, open-work 31.
Embodiment
(embodiment 1)
Fig. 1 to Fig. 4 has shown a kind of embodiment of the utility model, and wherein, Fig. 1 is a kind of perspective view of the present utility model; Fig. 2 is a kind of blast structural representation of current transformer device shown in Figure 1; Fig. 3 is a kind of perspective view of current transformer in the current transformer device shown in Figure 1; Fig. 4 is a kind of structural representation of current transformer shown in Figure 3 when observing from the side.
Present embodiment is a kind of current transformer device that is used for mold cased circuit breaker, sees Fig. 1 to Fig. 4, comprises three current transformers 1, a base 2 and a lid 3 that matches with described base 2 that is used to put described current transformer 1; Be provided with three storing chambeies 21 that are used to put described current transformer 1 in the described base 2, be used to put into the installing port 22 of current transformer 1, three positioning boss 23 that are used for location current instrument transformer 1; The center of described each positioning boss 23 is provided with routing hole 24, and described lid 3 is provided with three open-works 31 that match with described each positioning boss 23 center routing hole 24.
See Fig. 3 and Fig. 4, described current transformer 1 comprises square shape yoke 11 and the coil 12 of two diffraction on yoke 11, and described two coils 12 are oppositely arranged on the two ends of yoke 11; Described yoke 11 is set on the described positioning boss 23.
Described lid 2 is connected with described base 3 snap fit.
(embodiment 2)
Present embodiment is substantially the same manner as Example 1, and difference is: present embodiment also is filled with insulating resin in order to increase electrical insulation properties between the space of current transformer 1 and described base 2 inwalls.Concrete filling mode is that the epoxy resin of fusing is poured in the space of current transformer 1 and described base 2 inwalls, treats to solidify behind its natural cooling.
The foregoing description 1 and embodiment 2 have the following advantages:
(1) among the foregoing description 1 and the embodiment 2, is provided with storing chamber, the installing port that is used to put into current transformer that is used to put described current transformer, the positioning boss that is used for the location current instrument transformer in the described base; The center of described positioning boss is provided with routing hole, and described lid is provided with the open-work that matches with described positioning boss center routing hole.The foregoing description 1 and embodiment 2 have provided a kind of new mounting means in itself, adopt base and lid that three current transformers are fixed into one, get final product in the mounting seat that base need be fixed on mold cased circuit breaker during installation, during maintenance, can open lid, take out each current transformer it is detected, so the foregoing description 1 and embodiment 2 have in installation and maintenance operating aspect advantage comparatively easily.
(2) among the foregoing description 1 and the embodiment 2, described current transformer is common current transformer, comprises square shape yoke and the coil of two diffraction on yoke, and described two coils are oppositely arranged on the two ends of yoke; Described yoke is set on the described positioning boss.The current transformer of this kind structure and described base just in time cooperatively interact, and are installed in the base easily.
Obviously, the foregoing description of the present utility model only is for the utility model example clearly is described, and is not to be qualification to execution mode of the present utility model.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.Here need not also can't give exhaustive to all execution modes.And these belong to conspicuous variation or the change that spirit of the present utility model extended out and still are among the protection range of the present utility model.