CN209591769U - The spliced shielding case of current transformer - Google Patents
The spliced shielding case of current transformer Download PDFInfo
- Publication number
- CN209591769U CN209591769U CN201920528872.3U CN201920528872U CN209591769U CN 209591769 U CN209591769 U CN 209591769U CN 201920528872 U CN201920528872 U CN 201920528872U CN 209591769 U CN209591769 U CN 209591769U
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- China
- Prior art keywords
- spliceosome
- shielding case
- shell
- current transformer
- cover board
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Abstract
The utility model discloses a kind of spliced shielding case of current transformer, the shielding case ontology includes multiple spliceosomes, and the spliceosome includes the first spliceosome and the second spliceosome；First spliceosome and second spliceosome all include cover and housing, and the inner side edge of the cover board is equipped with latch fitting, and the upper end of the shell is equipped with lockhole；Upspring structure is equipped between the cover board and shell of first spliceosome；The upspring structure includes the first spring, and first spring pocket is set to the periphery of shaft, and the both ends of first spring are respectively provided with pin, and two pins are oppositely arranged；The bottom surface and two sides of the shell of first spliceosome and second spliceosome are respectively formed with supporting element, and one end of the supporting element has extended to form pin, and the other end is recessed jack.
Description
Technical field
The utility model belongs to transformer technical field, and in particular to a kind of spliced shielding case of current transformer.
Background technique
Primary side high current is converted into secondary side low current to measure according to electromagnetic induction principle by current transformer
Instrument.Current transformer is made of the iron core and winding being closed.Its first side winding the number of turns is seldom, and string is measured in needs
In the route of electric current.
Therefore it often there are whole electric currents of route to flow through, secondary side winding turn ratio is more, be serially connected in measuring instrumentss with
In protective loop, at work, its secondary side circuit is closure always to current transformer, therefore measuring instrumentss and is protected back
The impedance very little of road series coil, the close short circuit of the working condition of current transformer.Current transformer is primary side high current
Secondary side low current is converted into measure, secondary side can not open a way.
The anti-electromagnetic interference capability of current transformer by mutual inductor coil winding no-load voltage ratio and core material other than being influenced, also
It is influenced by the shielded layer shielding form of coil outer.Existing current transformer shielding construction is fairly simple, only in magnetism
Iron-core coil is up and down plus metallic shield cannot stop interference of the external magnetic field to itself, and shield effectiveness is undesirable；Furthermore it is traditional
Shielding case does not have versatility.
Utility model content
The utility model is applied to mainly solving the technical problems that provide a kind of spliced shielding case of current transformer
Current transformer, splicing structure design, flexibility is good, can be suitable for the current transformer of plurality of specifications, and shield effectiveness
It is good, improve the performance of current transformer.
In order to solve the above technical problems, the technical solution that the utility model uses is: providing a kind of current transformer
Spliced shielding case, including shielding case ontology, the shielding case ontology include multiple spliceosomes, and multiple spliceosomes detachably connect
It connects, the spliceosome includes the first spliceosome and the second spliceosome；
First spliceosome and second spliceosome all include the shell of cover board and both ends open, the cover board it is outer
Side is connect with the shell shaft, and inner side edge is equipped with latch fitting, and the upper end of the shell is equipped with the lockhole being adapted with latch fitting；
Upspring structure is equipped between the cover board and shell of first spliceosome；The upspring structure includes the first spring,
First spring pocket is set to the periphery of shaft, and the both ends of first spring are respectively provided with pin, and two pins are reversely set
It sets, first spring is set on the side that cover plate lid is closed and its two pins is respectively held against the interior of the side wall of cover inner surface and shell
Surface；
The bottom surface of the shell of first spliceosome and second spliceosome and along its length two sides difference
It is formed with supporting element, the supporting element and the shell are integrally formed, and one end of the supporting element extends to form pin, and another
End is recessed the jack to match with pin, and the jack realization that the pin of a spliceosome is inserted into another spliceosome detachably connects
It connects.
It further says, the latch fitting is equipped with one and is located at the middle part of deck side edge.
It further says, first spliceosome is the spliceosome of rectangular shape, and the shaft is set to the first spliceosome
The middle part of side.
Further say, second spliceosome is the spliceosome of bent angle shape, the cover board of second spliceosome it is outer
Side includes the straight line linkage section of the first segmental arc, the second segmental arc and connection the first segmental arc and the second segmental arc, described
The lateral wall of the shell of second spliceosome is set as the shape being adapted with the outer side edges of cover board, and the shaft is set to the straight line of cover board
Linkage section.
It further says, the inserted terminal of the pin is set as cambered surface.
It further says, the side wall of the pin is equipped with several circles equally distributed flange collar along its length.
It further says, the side wall of the shell is equipped with several equally distributed circular holes.
It further says, the latch fitting includes bolt and lock body, and the head end of the bolt is fixedly connected with cover board, the lock
Body is connected to the tail end of bolt, and the lock body includes top flat and latch fitting spring, one end and the top flat of the latch fitting spring
Middle part is fixedly connected, and the other end is fixedly connected with bolt, and the tail end of the bolt is equipped with two perforation and is located at the latch fitting
The two sides of spring, two top feet of the top flat pass through perforation and can be movable in perforation.
It further says, the top foot tail portion of the top flat is equipped with the limiting section for preventing it from being detached from perforation.
The utility model has the beneficial effects that
The spliced shielding case of the utility model is applied to current transformer, and shielding case is designed using splicing structure, spirit
Activity is good, can be suitable for the current transformer of sizes specification, and shield effectiveness is good, improves the performance of current transformer；
More preferably, upspring structure is equipped between cover board and shell, (by pressing bolt free end when latch fitting is detached from lockhole
Top flat, top flat squeeze latch fitting spring retract, to be detached from lockhole), i.e., opening cover board, cover board under the action of upspring structure,
It flicks outward, avoids the problem that occurring because shielding case is small in size without being easy to open；
More preferably, the inserted terminal of pin is set as cambered surface, is conducive to guide pin and carries out grafting；The side wall of pin is equipped with several
Equally distributed protrusion along its length is enclosed, increasing friction force, grafting is firm, is not easy to loosen；
More preferably, shell is equipped with circular hole, while having shielding action, does not influence the normal performance of mutual inductor.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model；
Fig. 2 is the structural schematic diagram of spliceosome；
Fig. 3 is the structural schematic diagram in the direction A-A of Fig. 2；
Fig. 4 is the structural schematic diagram of the first spring；
Fig. 5 is the side view of shell；
Fig. 6 is the spliceosome constitutional diagram (cover plate lid is together in shell) of the utility model；
Fig. 7 is the spliceosome constitutional diagram (cover board position is covered on shell) of the utility model；
Fig. 8 is the enlarged drawing of A1 in Fig. 7；
The appended drawing reference of each section is as follows in figure:
Shielding case ontology 1, the first spliceosome 11, the second spliceosome 12, cover board 13, the first segmental arc 131, the second segmental arc
132, straight line linkage section 133, shell 14, shaft 15, latch fitting 16, latch fitting 16, top flat 161, latch fitting spring 162, perforation 163, limit
Position portion 164, bolt 165, lockhole 17, the first spring 181, pin 182, supporting element 19, pin 191 and jack 192.
Specific embodiment
The preferred embodiment of the utility model is described in detail with reference to the accompanying drawing, so that the advantages of the utility model
It can be easier to be readily appreciated by one skilled in the art with feature, to make the protection scope of the utility model apparent clear
Define.
Embodiment: a kind of spliced shielding case of current transformer, as Figure 1-Figure 8, including shielding case ontology 1, institute
Stating shielding case ontology includes multiple spliceosomes, and multiple spliceosomes are detachably connected, and the spliceosome includes 11 He of the first spliceosome
Second spliceosome 12；
First spliceosome and second spliceosome all include the shell 14 of cover board 13 and both ends open, the cover board
Outer side edges connect with the shell shaft 15, inner side edge is equipped with latch fitting 16, and the upper end of the inner sidewall of the shell is equipped with and lock
The adaptable lockhole 17 of part；
Upspring structure is equipped between the cover board and shell of first spliceosome；The upspring structure includes the first spring
181, first spring pocket is set to the periphery of shaft, and the both ends of first spring are respectively provided with pin 182, two pins
Oppositely arranged, first spring is respectively held against the side of cover inner surface and shell set on the side that cover plate lid is closed and its two pins
The inner surface of wall；
The bottom surface of the shell of first spliceosome and second spliceosome and along its length two sides difference
It is formed with supporting element 19, the supporting element and the shell are integrally formed, and one end of the supporting element extends to form pin 191,
And the other end is recessed the jack 192 to match with pin, the pin of a spliceosome is inserted into another spliceosome
Jack realization is detachably connected；It is interconnected between the adjacent spliceosome.
The shell of first spliceosome and the second spliceosome is both ends open, i.e. opposite two in the stitching portion of spliceosome
End face does not set side wall and is set as being open.
The latch fitting is equipped with one and is located at the middle part of deck side edge.
First spliceosome is the spliceosome of rectangular shape, and the shaft is set to the middle part of the first spliceosome side.
Second spliceosome is the spliceosome of bent angle shape, and the outer side edges of the cover board of second spliceosome include first
Segmental arc 131, the second segmental arc 132 and the straight line linkage section 133 for connecting the first segmental arc and the second segmental arc, described second
The lateral wall of the shell of spliceosome is set as the shape being adapted with the outer side edges of cover board, and the straight line that the shaft is set to cover board connects
Section.
The inserted terminal of the pin is set as cambered surface.
The side wall of the pin is equipped with several circles equally distributed flange collar (not shown go out) along its length, increases friction
Power, grafting is firm, is not easy to loosen.
The side wall of the shell is equipped with several equally distributed circular holes.
The latch fitting 16 includes bolt 165 and lock body, and the head end of the bolt is fixedly connected with cover board, the lock body connection
In the tail end of bolt, the lock body includes top flat 161 and latch fitting spring 162, one end and the top flat of the latch fitting spring
Middle part is fixedly connected, and the other end is fixedly connected with bolt, and the tail end of the bolt is equipped with two perforation 163 and is located at the lock
The two sides of part spring, two top feet of the top flat pass through perforation and can be movable in perforation.
The top foot tail portion of the top flat is equipped with the limiting section 164 for preventing it from being detached from perforation.
The shielding case is silicon steel sheet shielding case.
Described is fixedly connected as welding.
The above description is only the embodiments of the present invention, and therefore it does not limit the scope of the patent of the utility model, all
Equivalent structure transformation made based on the specification and figures of the utility model, it is relevant to be applied directly or indirectly in other
Technical field is also included in the patent protection scope of the utility model.
Claims (9)
1. a kind of spliced shielding case of current transformer, it is characterised in that: including shielding case ontology, the shielding case ontology packet
Multiple spliceosomes are included, multiple spliceosomes are detachably connected, and the spliceosome includes the first spliceosome and the second spliceosome；
First spliceosome and second spliceosome all include the shell of cover board and both ends open, the outer side edges of the cover board
It is connect with the shell shaft, inner side edge is equipped with latch fitting, and the upper end of the shell is equipped with the lockhole being adapted with latch fitting；
Upspring structure is equipped between the cover board and shell of first spliceosome；The upspring structure includes the first spring, described
First spring pocket is set to the periphery of shaft, and the both ends of first spring are respectively provided with pin, and two pins are oppositely arranged, institute
The first spring is stated set on the side that cover plate lid is closed and its two pins is respectively held against the inner surface of the side wall of cover inner surface and shell；
The bottom surface of the shell of first spliceosome and second spliceosome and two sides along its length are respectively formed
There is supporting element, the supporting element and the shell are integrally formed, and one end of the supporting element extends to form pin, and in the other end
At the jack to match with pin, the jack realization that the pin of a spliceosome is inserted into another spliceosome is detachably connected spill.
2. the spliced shielding case of current transformer according to claim 1, it is characterised in that: the latch fitting is equipped with one
And it is located at the middle part of deck side edge.
3. the spliced shielding case of current transformer according to claim 1, it is characterised in that: first spliceosome is
The spliceosome of rectangular shape, the shaft are set to the middle part of the first spliceosome side.
4. the spliced shielding case of current transformer according to claim 1, it is characterised in that: second spliceosome is
The spliceosome of bent angle shape, the outer side edges of the cover board of second spliceosome include the first segmental arc, the second segmental arc and company
The straight line linkage section of the first segmental arc and the second segmental arc is connect, the lateral wall of the shell of second spliceosome is set as and cover board
The adaptable shape of outer side edges, the shaft are set to the straight line linkage section of cover board.
5. the spliced shielding case of current transformer according to claim 1, it is characterised in that: the inserted terminal of the pin
It is set as cambered surface.
6. the spliced shielding case of current transformer according to claim 5, it is characterised in that: the side wall of the pin is set
There is several circles equally distributed flange collar along its length.
7. the spliced shielding case of current transformer according to claim 1, it is characterised in that: the side wall of the shell is set
There are several equally distributed circular holes.
8. the spliced shielding case of current transformer according to claim 1, it is characterised in that: the latch fitting includes bolt
And lock body, the head end of the bolt are fixedly connected with cover board, the lock body is connected to the tail end of bolt, and the lock body includes top flat
With latch fitting spring, it is fixedly connected in the middle part of one end of the latch fitting spring and the top flat, the other end is fixedly connected with bolt, institute
The tail end for stating bolt is equipped with two perforation and is located at the two sides of the latch fitting spring, and two top feet of the top flat pass through perforation
And it can be movable in perforation.
9. the spliced shielding case of current transformer according to claim 8, it is characterised in that: the top foot tail of the top flat
Portion is equipped with the limiting section for preventing it from being detached from perforation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920528872.3U CN209591769U (en) | 2019-04-18 | 2019-04-18 | The spliced shielding case of current transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920528872.3U CN209591769U (en) | 2019-04-18 | 2019-04-18 | The spliced shielding case of current transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209591769U true CN209591769U (en) | 2019-11-05 |
Family
ID=68347806
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920528872.3U Active CN209591769U (en) | 2019-04-18 | 2019-04-18 | The spliced shielding case of current transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209591769U (en) |
-
2019
- 2019-04-18 CN CN201920528872.3U patent/CN209591769U/en active Active
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