CN108663559A - Current detector - Google Patents
Current detector Download PDFInfo
- Publication number
- CN108663559A CN108663559A CN201810252529.0A CN201810252529A CN108663559A CN 108663559 A CN108663559 A CN 108663559A CN 201810252529 A CN201810252529 A CN 201810252529A CN 108663559 A CN108663559 A CN 108663559A
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- CN
- China
- Prior art keywords
- circuit board
- main body
- housing main
- incorporating section
- current detector
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
- G01R19/0092—Arrangements for measuring currents or voltages or for indicating presence or sign thereof measuring current only
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R1/00—Details of instruments or arrangements of the types included in groups G01R5/00 - G01R13/00 and G01R31/00
- G01R1/02—General constructional details
- G01R1/04—Housings; Supporting members; Arrangements of terminals
Abstract
The present invention provides current detector, the technology of the facilitation for the operation being that by and the reduction of manufacturing cost.Current detector (100) has：Housing main body (102) is formed with the conductor insert for sensed current in the housing main body and inserts hole (104), inserts and is formed with incorporating section (102g) around hole at this；Magnetic material core (110), setting is in incorporating section (102g)；Circuit board (114) is incorporated in magnetic material core (110) in incorporating section (102g) together；Flank (102h) and protruding parts (102k), they are to be formed as one to be formed with housing main body (102), rotation displacement of the limiting circuit substrate (114) in the circumferential direction for inserting hole (104), to which limiting circuit substrate (114) falls off from housing main body (102).
Description
Technical field
The present invention relates to the current detectors used in the measurement of electric current.
Background technology
About this current detector, in the past it has been known that there is following first technology, when there is gap in Magnetic Sensor
Cricoid iron core on convolute coil when, on the same face of substrate, match on the circumference of the circumference same radius of iron core
Set Magnetic Sensor and coil (for example, referring to patent document 1).In the first technology, by the way that loop length is set as small in advance
Size in gap after by coil configuration in gap, makes substrate be moved along the circumferential direction of iron core in placement substrate, by
This forms the state of iron core break-through coil.Then, by make the substrate around coil central axis rotate, Magnetic Sensor by with
It sets in gap.
【Citation】
【Patent document】
【Patent document 1】Japanese Unexamined Patent Publication 2013-68490 bulletins
Above-mentioned first technology is into enforcement substrate to the movement of iron core circumferential direction and around the such complexity of hub of a spool axis rotation
Action, thus assembling work is miscellaneous.It, will using multiple screw components also, after by coil and substrate reception in framework
Substrate is fixed on framework, thus part count and assembly work increase, and correspondingly there will be the surging problem of manufacturing cost.
Invention content
Therefore, project of the invention is to provide the technology of the facilitation for the operation that can be realized and the reduction of manufacturing cost.
In order to solve the above problems, the present invention uses solution below.
The current detector of the present invention has limiting unit in housing main body.Inside in housing main body, which is formed with, to be inserted
Hole, and incorporating section is formed with around hole inserting.Housing main body when incorporating section is in from the insert direction from conductor
One face opening, another face block container-like, and the magnetic material core and circuit board being incorporated in incorporating section directly pass through
It is open and falls off, but fallen off in the present invention using limiting unit limitation.
The limitation of limiting unit is carried out by two-stage construction.That is, limiting unit (1) limiting circuit substrate or and one
The rotation displacement of other packaging containers of storage is played, (2) therewith, limiting circuit substrate is fallen off by opening.Therefore, rotation displacement
Limitation be directly becoming the limitation to fall off, as long as being the limitation for not releasing rotation displacement, the structure that circuit board would not fall off.
Also, the not seperated component of limiting unit, is integrally formed with housing main body, it is thus possible to as housing main body position and
It is formed.
The assembly when limitation of above-mentioned (1), (2) of limiting unit is conversely related to manufacture facilitates.That is, assembling
During not yet carry out the limitation of above-mentioned (2), it is thus possible to the opening for being easy to pass through circuit board housing main body is inserted into.Such as
Fruit makes circuit board or other packaging containers from rotation displacement under the state until the limitation of above-mentioned (1) of limiting unit is effective
Until ground plays a role, then only this can make above-mentioned (1) of limiting unit, the limitation of (2) all effective, and limiting circuit base always
Plate falls off.Therefore, assembling work can be realized without the use of other components such as screw.
Limiting unit can include the protruding parts from inner surface prominent formation into incorporating section of housing main body.This
In the case of, thus the portion contacts of protruding parts and circuit board or other packaging containers in receiving state make above-mentioned
(1), the limitation of (2) is effective.This, which is conversely also implied that, is easy to carry out assembling work as described below.That is, in assembly
In the process, circuit board is inserted by the opening of housing main body, if making circuit board or other packaging containers from the state
For lower rotation displacement until the portion contacts of protruding parts and circuit board or other packaging containers, then protruding parts are to upper
State (1), the limitation of (2) all effective, and limiting circuit substrate falls off always.
In addition, limiting unit can include protruding to be formed along a face for forming its opening from the inner surface of housing main body
Ribbed position.In this case, the position of ribbed is contacted with the outer surface of the circuit board in receiving state, thus
Keep the limitation of above-mentioned (2) effective.In this way, utilizing the position limiting circuit for the ribbed being formed as one with housing main body along opening
Substrate falls off, it is thus possible to cut down part count.Also, the position of ribbed keeps the limitation of above-mentioned (2) effective, therefore ensure that from
The distance of opening face to the outer surface of circuit board is fixed.Therefore, it is possible to by the conductor from be inserted through to inserting in hole to
The insulation distance (distance in specification) of circuit board is ensured to be desired value, improves the safety of product.
In the case where limiting unit includes the position of above-mentioned ribbed, circuit board has notch, in circuit board
Resist the limitation of above-mentioned (1) and in the state of rotation displacement, the notch not with the location contacts of ribbed.In this state, lead to
The position for relatively receiving ribbed in notch is crossed, circuit board falling off by opening is allowed.
That is, the position of ribbed with above-mentioned (1) limitation effectively and keep the limitation of above-mentioned (2) effective, thus without
In the case of the limitation of above-mentioned (1), the consequently also limitation without above-mentioned (2).This, which is conversely also implied that, is easy under
Assembling work is carried out described in face.For example, during assembly, when circuit board is inserted by the opening of housing main body,
The position relationship that can be easy the position according to notch and ribbed determines to position circuit board relative to housing main body
In which direction.That is, circuit board (is fallen off by the insertion for receiving the position of ribbed that can carry out to housing main body in notch
Negative side), thus as long as no their position relationship to be properly aligned with, circuit board cannot be inserted into housing main body.
Therefore, it is possible to prevent Wrong localization when assembling work, workability is improved.
Invention effect
In accordance with the invention it is possible to realize the facilitation of operation and the reduction of manufacturing cost.
Description of the drawings
Fig. 1 is the skeleton diagram of the structure for the current detector for showing the 1st embodiment.
Fig. 2 is the skeleton diagram of the structure for the current detector for showing the 1st embodiment.
Fig. 3 is the exploded perspective view of the current detector of the 1st embodiment.
Fig. 4 is the front view for the state to fall off for showing non-limiting circuit substrate and magnetic material core.
Fig. 5 is the front view for the state to fall off for showing limiting circuit substrate and magnetic material core.
Fig. 6 is the partial perspective view for being illustrated in detail in limitation of the protruding parts to the rotation displacement of circuit board.
Fig. 7 is the partial perspective view for being illustrated in detail in limitation of the protruding parts to the rotation displacement of circuit board.
Fig. 8 is the stereogram for the current detector that the 1st embodiment is shown with the state kept flat.
Fig. 9 is the skeleton diagram of the structure for the current detector for showing the 2nd embodiment.
Figure 10 is the skeleton diagram of the structure for the current detector for showing the 2nd embodiment.
Figure 11 is the exploded perspective view of the current detector of the 2nd embodiment.
Figure 12 is the exploded perspective view for showing not limit the position relationship of the circuit board of the state to fall off and housing main body.
Figure 13 is to show that the never rotation displacement of limiting circuit substrate and the state to fall off enter the process of the state of limitation
Front view.
Figure 14 is to show that the never rotation displacement of limiting circuit substrate and the state to fall off enter the process of the state of limitation
Front view.
Figure 15 is the stereogram for the current detector that the 2nd embodiment is shown with the state kept flat.
Figure 16 is the skeleton diagram of the structure for the current detector for showing the 3rd embodiment.
Figure 17 is the skeleton diagram of the structure for the current detector for showing the 3rd embodiment.
Figure 18 is the exploded perspective view of the current detector of the 3rd embodiment.
Figure 19 is the front view shown using the circuit board of ring cover and the restriction state of magnetic material core.
Figure 20 is the sectional view along the current detector of the XX-XX lines in Figure 19.
Figure 21 is the phantom along the XXI-XXI lines in Figure 19.
Figure 22 is the sequential chart for the action for showing to be limited using ring cover.
Figure 23 is the sequential chart for the action for showing to be limited using ring cover.
Figure 24 is the partial perspective view for showing to make ring cover to rotate and be set as the example of restriction state.
Figure 25 is the partial perspective view for the example for showing only to lean on simple insertion that ring cover can be set as to restriction state.
Label declaration
100,200,300 current detector；102,202,302 housing main body；102d, 202d, 302d wall plate；104、
204,304 hole is inserted；110,210,310 magnetic material core；114,214,314 circuit board；102h, 202h flank；102k、
202k, 302k protruding parts；320 ring covers；320c margining tablets.
Specific implementation mode
In the following, being described with reference to embodiments of the present invention.
[the 1st embodiment]
Fig. 1 and Fig. 2 is the skeleton diagram of the structure for the current detector 100 for showing the 1st embodiment.Fig. 1 is from face side
Show that the stereogram of current detector 100, Fig. 2 are from the stereogram shown in back side.In the following, to the electric current of the 1st embodiment
The structure of detector 100 illustrates.
[housing main body]
Current detector 100 has the housing main body 102 of such as resin.Housing main body 102 constitutes current detector 100
Formalness, and conductor that the sensed current for being provided as main purpose flows through insert (not shown) also plays and is directed to
The fixed function of any object (same not shown).Also, it is accommodated with magnetic material core in the inside of housing main body 102 (scheming
1, do not observe in 2) and circuit board 114.Additionally, there are the inside of housing main body 102 to be filled out by embedding (potting) resin etc.
The case where filling and sealing, but there is omitted herein diagram (same as below).Also, it is equipped in face side in circuit board 114
Outer surface connector 108 outstanding.
The roughly annular shape on the whole of housing main body 102, break-through thickness direction (front-rear direction) is formed in center portion
Insert hole 104.Under the vertical-position shown in Fig. 1,2, it is bent respectively in the upper and lower surface of housing main body 102 and two sides
Part is more apparent, but in each face in addition to the part of bending, and the shape of the part with plane is also presented.
In addition, in housing main body 102, incorporating section 102g is formed with around hole 104 inserting.Incorporating section 102g is in appearance
Device shape, when from the break-through direction (the insert direction of conductor) for inserting hole 104 one face (front of Fig. 1) integral finish,
Another face (back side of Fig. 2) is blocked.Circuit board 114 and magnetic material core are inserted by the opening of incorporating section 102g.
A pair of upper bracket 102a, floor bracket 102b, lower part are respectively constituted in addition, being formed in housing main body 102
Bracket 102c etc., so as to according to the fixation described above carried out to object (framework etc. for the equipment that sensed current flows through).
Upper bracket 102a and lower tray 102c is located at just to insert the outside for the housing main body 102 that hole 104 is center
Four corners.Also, the floor bracket 102b of both sides a pair prolongs from the bottom surface of housing main body 102 towards two sides in foliaceous
It stretches.
Wherein, upper bracket 102a and lower tray 102c be used to that housing main body 102 is overleaf fixed on object
The case where.In addition, floor bracket 102b is used for the case where housing main body 102 is fixed on object by bottom surface.No matter which kind of
In the case of, being formed in each bracket 102a, 102b, 102c can insert for any secure component (bolt, nut, protruded stigma etc.)
Hole.
[magnetic material core]
Fig. 3 is the exploded perspective view of the current detector 100 of the 1st embodiment.As described above, current detector 100 has
Be magnetic body core 110 and circuit board 114, they are incorporated in the incorporating section 102g of housing main body 102.Therefore, in shell
In main body 102, incorporating section 102g is formed as the pit shape (container-like) from face side towards back side, and incorporating section on the whole
102g is inserting formation ring-type around hole 104.Magnetic material core 110, which just surrounds, to be inserted hole 104 and is incorporated in incorporating section
In 102g.In the 1st embodiment, magnetic material core 110 is the type for having secondary winding 110c, and shape shown in Fig. 3 is basic
On occupied by secondary winding 110c.Magnetic material core 110 has the annular being made of magnetic material in the inside of secondary winding 110c
Iron core 110b (such as ring (toroidalring)), air gap is formed in part of it.Hall element 130 passes through gasket 110a
It is configured in the air gap.In addition, under completion status, Hall element 130 is installed in circuit board 114.
[circuit board]
In addition, current detector 100 have above-mentioned circuit board 114, the circuit board 114 also with magnetic material core 110
It is incorporated in together in the incorporating section 102g of housing main body 102.It is formed with opening 114a in the center of circuit board 114, is being received
It receives under state, the wall plate 102d inserted around hole 104 can be received in opening 114a.Also, magnetic material core 110 is at it
Circumferential multiple positions (at three) are equipped with protruded stigma 110d, and magnetic material core 110 is fixed on circuit board by these protruded stigmas 110d
114.In addition, being equipped with above-mentioned connector 108 and Hall element 130 and various electronic units in circuit board 114, thus
Form current detection circuit.
[fall off limit structure]
As described above, critical piece, that is, the magnetic material core 110 and circuit board 114 of current detector 100 are incorporated in outside
In the incorporating section 102g of shell main body 102, and in the 1st embodiment, without the use of other components such as screws, you can limiting circuit
Substrate 114 and magnetic material core 110 falling off from housing main body 102.In the following, this is described in detail.
[unrestricted state]
Fig. 4 is the front view for the state to fall off for showing non-limiting circuit substrate 114 and magnetic material core 110.In the state
Under, circuit board 114 and magnetic material core 110 can be easy to fall off by the opening of housing main body 102.That is, circuit board 114
The wall plate 102d inserts around hole 104 will only be inserted in the opening 114a in center, do not carry out spy with housing main body 102
Other fixation.
In circuit board 114, in the four direction opposite with upper and lower and both sides each inner surface of housing main body 102
Peripheral part is respectively formed with two rims 114b, 114c.This two rims 114b, 114c are formed not on the same line
Fixed angle (obtuse angle) and mutually intersection.As shown in figure 4, falling off in non-limiting circuit substrate 114 and magnetic material core 110
Under state, the rim 114b of a side is respectively formed as the internal face relative to housing main body 102 in the peripheral part of four direction
And opposite position relationship substantially in parallel.Also, the rim 114c of another party is formed as the inner wall relative to housing main body 102
Face and tilt and opposite position relationship.
In housing main body 102, in addition to observing the integrated landform on upper and lower and right side each inner surface in Fig. 4
At flank 102h other than, flank 102h is also integrally formed on the inner surface in the lower left corner.Wherein, it is located at upper and lower and right side
Three flank 102h of each inner surface be located at the position opposite with the rim 114c of circuit board 114, but these three flanks
102h is not contacted with rim 114c.Also, about the flank 102h positioned at the lower left corner, in circuit board 114 corresponding thereto
Edge be formed with notch 114d, position relationship according to Fig.4, be formed as flank 102h be just supporting at (enter
To) state in notch 114d.
Therefore, in housing main body 102 (incorporating section 102g), circuit board 114 is in free state to a certain extent,
Rotation displacement is also unrestricted shown in arrow in Fig. 4.Conversely, in the dress of the current detector 100 of the 1st embodiment
With in operation, circuit board 114 and magnetic material core 110 can be inserted into housing main body 102 by position relationship according to Fig.4,
Incorporating section 102g in.In addition, the position relationship of housing main body 102 and circuit board 114 and magnetic material core 110 shown in Fig. 4,
Position relationship as shown in figure 3 is consistent.
[restriction state]
Fig. 5 is the front view for the state to fall off for showing limiting circuit substrate 114 and magnetic material core 110.From shown in Fig. 4
In the state of when circuit board 114 and magnetic material core 110 being made deasil to rotate, become state shown in fig. 5.Also, at this
Under state, the rotation displacement of circuit board 114 is also restricted, along with the limitation, circuit board 114 and magnetic material core 110
It falls off and is limited.
At this point, understanding that circuit board 114 becomes following position relationship：I.e. in the peripheral part of four direction, another party
Rim 114c it is opposite substantially in parallel with the internal face of housing main body 102 respectively.Under uncurbed state (Fig. 4), with
The rim 114b of the substantially parallel side of internal face of housing main body 102 this time becomes the internal face relative to housing main body 102
And inclination and opposite position relationship.
In addition, four flank 102h about housing main body 102, are at and (are connect with the outer surface of circuit board 114
The mounting surface of device 108) contact state, it can thus be appreciated that circuit board 114 and magnetic material core 110 falling off from housing main body 102
It is solidly constrained.Also, under uncurbed state (Fig. 4), the notch of the flank 102h of lower-left Angle Position is received
114d and is moved with the rotation displacement of circuit board 114 to circumferentially position far from flank 102h, thus cannot be in notch
Flank 102h is received in portion 114d.
It is observed from the front the prominent of triangular shape here, being integrally formed in the position in the upper right corner of housing main body 102
Go out position 102k.The protruding parts 102k while shortest in using three as bottom edge when, face made of being surrounded by three sides from
It climbs inclination towards vertex on bottom edge." inclination of climbing " that this place is said refers to most inboard, the length that bottom edge is located in the 102g of incorporating section
Side is located at the nearest front side (positive open side) in the 102g of incorporating section.Therefore, protruding parts 102k is in from housing main body 102
Open side outstanding state of the inner surface into incorporating section 102g.
Also, in two long sides of protruding parts 102k along the part of a line close to the inside of housing main body 102 with
The edge 114b of circuit board 114 is contacted.At this point, since there is above-mentioned " inclination of climbing " in protruding parts 102k, thus edge
The part for a line close to the inside of housing main body 102, with by the hiding housing main body of circuit board 114 (edge 114b)
Part with height difference between 102 inner surface.At the part of the part with height difference, protruding parts 102k
It is contacted with edge 114b, thus the rotation displacement (counter clockwise direction) of protruding parts 102k limiting circuits substrate 114.
[details of protruding parts]
Fig. 6 and Fig. 7 be illustrated in detail in limitations of the protruding parts 102k to the rotation displacement of circuit board 114 part it is vertical
Body figure.Wherein, state position relationship as shown in fig. 4 shown in Fig. 6 (A) is consistent, state shown in Fig. 7 (D) with it is shown in fig. 5
Position relationship is consistent.Other Fig. 6 (B) and Fig. 7 (C) are shown from limitation state of the previous dynasty to the midway after limitation.
[state before limitation]
Fig. 6 (A)：The rotation displacement of non-limiting circuit substrate 114 and the state to fall off.In this state, circuit board 114
Edge 114b and protruding parts 102k do not contact.Also, the above-mentioned of protruding parts 102k can be observed visually herein " to climb
The state of inclination " and " part with height difference ".In addition, circuit board 114 connect with the end of edge 114b and is formed
Corner 114e, corner 114e are also at the position far from protruding parts 102k.Make circuit board 114 along figure rising from there
As following state when arrow direction (clockwise direction) rotation displacement.
[midway state (1)]
Fig. 6 (B)：The not yet rotation displacement of limiting circuit substrate 114.But by the rotation displacement of circuit board 114,
Rim 114b (corner 114e) climbs onto the inclined surface (" inclination of climbing ") of protruding parts 102k.At this point, in housing main body 102
The right side of inner surface, flank 102h contact that (rim 114c is entered in flank 102h with the outer surface of circuit board 114
Side).Similarly, other three flank 102h are also contacted with the outer surface of circuit board 114, thus have begun limiting circuit base
Plate 114 falls off from opening, but does not illustrate.Therefore, it climbs to the inclination of protruding parts 102k in rim 114b (corner 114e)
When on face (" inclination of climbing "), flexural deformation to a certain degree is generated in circuit board 114, thus for circuit board 114
Rotation displacement and generate corresponding resistance.
[midway state (2)]
Fig. 7 (C)：By 114 further rotation displacement of circuit board, rim 114b (corner 114e) significantly climb to
On the inclined surface (" inclination of climbing ") of protruding parts 102k.Since the limitation of flank 102h has played a role, thus with to
The progress of climbing of the inclined surface of protruding parts 102k, the bending deformation quantity of circuit board 114 also increase, and then resistance increases.
[restriction state]
Fig. 7 (D)：The rotation displacement of circuit board 114 and the confined state that falls off.In this state, circuit board 114
Rim 114b (corner 114e) fully pass over and (passed through) inclined surface of protruding parts 102k.Crossing protruding parts 102k
When, circuit board 114 eliminates the flexural deformation of the part with height difference by recuperability, become rim 114b with
The state that the part of height difference is contacted with protruding parts 102k.Even circuit board 114 receives counterclockwise
When power, also hooking reliably limits counterclockwise rim 114b in the part with height difference of protruding parts 102k
Rotation displacement.Also, corner 114e is contacted with the inner surface of housing main body 102, and limitation continues rotation clockwise
Displacement.Therefore, circuit board 114 is to around inserting the rotation displacement in hole 104 by two-way limitation.Also, with circuit board 114
Rotation displacement limited, become the limit that flank 102h falls off to circuit board 114 and magnetic material core 110 from housing main body 102
Make the state reliably to play a role.
[ensuring for insulation distance]
Fig. 8 is the stereogram that current detector 100 is shown with the state kept flat.In this, it is assumed that circuit board 114 and magnetism
Body core 110 is limited from falling off for housing main body 102.
Above-mentioned flank 102h in addition to limiting circuit substrate 114 and magnetic material core 110 from housing main body 102 fall off with
Outside, also to ensuring that the distance (size H in figure) from 102 opening face of housing main body to 114 outer surface of circuit board is contributed.It should
Distance H is used to reliably ensure the various electricity on the conductor (not shown) to circuit board 114 from be inserted through to inserting in hole 104
Thus the insulation distance of subassembly greatly improves the safety of current detector 100.
As described above, superiority below can be obtained according to the current detector 100 of the 1st embodiment.
It (1), being capable of limiting circuit substrate by the way that protruding parts 102k and flank 102h is integrally formed in housing main body 102
114 and magnetic material core 110 fall off, because without using the other components for preventing from falling off (secure components such as screw), energy
Enough reduce part count and manufacturing cost.
(2) in assembling work, a left side for the position and housing main body 102 of the notch 114d by making circuit board 114
The flank 102h of lower Angle Position is consistent, can be easily adjusted into position relationship appropriate.Therefore, it is possible to when preventing assembling work
Mistake (loss of time).
(3) also, circuit board 114 is only inserted into housing main body 102 and makes (clockwise direction) rotation in one direction,
At once lock-in circuit substrate 114, it is thus possible to quickly complete assembling work.Therefore, operating efficiency greatly improves.
(4) also, in the locking of circuit board 114 capable of obtaining clearly clickly sense, (corner 114e crosses protruding portion
The resistance sense when inclined surface of position 102k), it is thus possible to trippingly carry out assembling work.
[the 2nd embodiment]
In the following, the 2nd embodiment is illustrated.
Fig. 9 and Figure 10 is the skeleton diagram of the structure for the current detector 200 for showing the 2nd embodiment.Fig. 9 is from face side
Show that the stereogram of current detector 200, Figure 10 are from the stereogram shown in back side.In the following, to the electric current of the 2nd embodiment
The structure of detector 200 illustrates.
[housing main body]
Current detector 200 has the housing main body 202 of such as resin.Housing main body 202 constitutes current detector 200
Formalness, and conductor that the sensed current for being provided as main purpose flows through insert (not shown) also plays and is directed to
The fixed function of any object (same not shown).Also, it is accommodated with magnetic material core in the inside of housing main body 202 (scheming
9, do not observe or omit in Figure 10) and circuit board 214.Additionally, there are the inside of housing main body 202 by sealing resin etc.
The case where filling and sealing, but there is omitted herein diagram (same as below).Also, it is equipped in face side in circuit board 214
Outer surface connector 208 outstanding.
The roughly annular shape (from the trapezoidal shape of overleaf observing) on the whole of housing main body 202, is formed in center portion and wears
Logical thickness direction (front-rear direction) inserts hole 204.Under Fig. 9, vertical-position shown in Fig. 10, under housing main body 202
The part that surface and two sides are bent respectively is more apparent, but the shape of the part with plane is also presented in upper surface.
In addition, in housing main body 202, incorporating section 202g is formed with around hole 204 inserting.Incorporating section 202g is in appearance
Device shape, when from the break-through direction (the insert direction of conductor) for inserting hole 204 one face (front of Fig. 9) integral finish,
Another face (back side of Figure 10) is blocked.Circuit board 214 and magnetic material core are inserted by the opening of incorporating section 202g.
A pair of upper bracket 202a, floor bracket 202b, lower part are respectively constituted in addition, being formed in housing main body 202
Bracket 202c etc., so as to according to the fixation described above carried out to object (framework etc. for the equipment that sensed current flows through).
Upper bracket 202a and lower tray 202c is located at just to insert the outside for the housing main body 202 that hole 204 is center
Four corners.Also, the floor bracket 202b of both sides a pair prolongs from the bottom surface of housing main body 202 towards two sides in foliaceous
It stretches.
Wherein, upper bracket 202a and lower tray 202c be used to that housing main body 202 is overleaf fixed on object
The case where.In addition, floor bracket 202b is used for the case where housing main body 202 is fixed on object by bottom surface.No matter which kind of
In the case of, it is all formed with and can be inserted for any secure component (bolt, nut, protruded stigma etc.) in each bracket 202a, 202b, 202c
Hole.
[magnetic material core]
Figure 11 is the exploded perspective view of the current detector 200 of the 2nd embodiment.As described above, current detector 200 has
Be magnetic body core 210 and circuit board 214, they are incorporated in the incorporating section 202g of housing main body 202.Therefore, in shell
In main body 202, incorporating section 202g is formed as the pit shape (container-like) from face side towards back side, and incorporating section on the whole
202g is inserting formation ring-type around hole 204.Magnetic material core 210, which just surrounds, to be inserted hole 204 and is incorporated in incorporating section
In 202g.In the 2nd embodiment, magnetic material core 210 is the type for having secondary winding 210c, and shape is basic shown in Figure 11
On occupied by secondary winding 210c.Magnetic material core 210 has the annular being made of magnetic material in the inside of secondary winding 210c
Iron core 210b (such as ring) is formed with air gap in part of it.Hall element 230 is configured in the air gap by gasket 210a
It is interior.In addition, Hall element 230 is installed in circuit board 214.
[circuit board]
In addition, current detector 200 have above-mentioned circuit board 214, the circuit board 214 also with magnetic material core 210
It is incorporated in together in the incorporating section 202g of housing main body 202.It is formed with opening 214a in the center of circuit board 214, is being received
It receives under state, the wall plate 202d inserted around hole 204 can be received in opening 214a.Also, it is equipped in gasket 210a
Magnetic material core 210 is fixed on circuit board 214 by two protruded stigma 210d by these protruded stigmas 210d.In addition, in circuit board
214 are equipped with above-mentioned connector 208 and Hall element 230 and various electronic units, and current detection circuit is consequently formed.
[fall off limit structure]
As described above, critical piece, that is, the magnetic material core 210 and circuit board 214 of current detector 200 are incorporated in outside
In the incorporating section 202g of shell main body 202, and in the 2nd embodiment, without the use of other components such as screws, you can limiting circuit
Substrate 214 and magnetic material core 210 falling off from housing main body 202.In the following, this is described in detail.
Figure 12 be show do not limit fall off in the state of circuit board 214 and housing main body 202 position relationship point
Solve stereogram.In the following, miscellaneousization in order to prevent, is omitted the diagram of magnetic material core 210.
Housing main body 202 has the wall plate 202d of cylindrical shape inserting around hole 204.Also, in the wall plate
202d is integrally formed with three flank 202h, these flanks 202h is towards radial protrusion in the 202g of incorporating section.Also, edge
Circumferential observation, three flank 202h not instead of equal intervals are arranged with unequal interval.
Position corresponding with three flank 202h is formed with notch 214d in circuit board 214.These notch
214d is able to relatively receive corresponding flank 202h.Therefore, in the assembly of current detector 100, by suitably adjusting
The position relationship of the notch 214d of whole circuit board 214 and the flank 202h of housing main body 202, can be by circuit board 214
It is inserted into housing main body 202.
Also, in housing main body 202, than flank 202h by inboard position in the direction of insertion of circuit board 214
It is integrally formed with substrate gasket 202p, 202q.These substrate gasket 202p, 202q and the electricity being inserted into housing main body 202
One mounting surface of base board 214 contacts, and circuit board 214 is thus positioned in the 202g of incorporating section.
Also, it is integrally formed with protruding parts 202k at a position of the inner surface of housing main body 202.The protruding portion
Position 202k states outstanding into incorporating section 202g in the inner surface from housing main body 202.In contrast, in circuit board
Position corresponding with the protruding parts 202k under restriction state (completion status) is formed with recess portion 214e in 214, and with it is recessed
The position of portion 214e connections is formed with leading edge 214b.
Figure 13 and Figure 14 is the rotation for showing never limiting circuit substrate 214 (including magnetic material core 210, same as below)
Transfer position and the state to fall off enter the front view of the process of confined state.Wherein, Figure 13 (A) indicates not limit to fall off
State, the state that Figure 14 (D) indicates limitation rotation displacement and falls off.Figure 13 (B) and Figure 14 (C) indicates the state of midway.
[unrestricted state]
Figure 13 (A)：In this state, circuit board 214 can be easy to fall off by the opening of housing main body 202.That is,
Circuit board 214 is only that will insert wall plate 202d insert around hole 204 in the opening 214a in center, not with shell master
Body 202 is particularly fixed.
Also, above three flank 202h is in each notch 214d corresponding with circuit board 214 and (is connect relatively
Receive) position, these three flanks 202h do not contact with the mounting surface of circuit board 214.
Therefore, in housing main body 202 (incorporating section 202g), circuit board 214 is in free state to a certain extent,
Rotation displacement shown in arrow is also unrestricted in figure.Conversely, in the assembly of the current detector 200 of the 2nd embodiment
In operation, according to position relationship shown in Figure 13 (A), circuit board 214 can be inserted into the incorporating section 202g of housing main body 202
It is interior.In addition, the position relationship of housing main body 202 shown in Figure 13 (A) and circuit board 214 and magnetic material core 210, with Figure 11 and
Position relationship shown in Figure 12 is consistent.
[midway state (1)]
Figure 13 (B)：When deasil being rotated in the state of making circuit board 214 from shown in Figure 13 (A), become three ribs
The state that portion 202h is contacted with the mounting surface of circuit board 214.Therefore, limiting circuit substrate 214 is had begun from the state
Fall off.Also, as in the protruding parts of the peripheral region leading edge 214b and 202 inner surface of housing main body of circuit board 214
The state of 202k contacts.At this point, leading edge 214b is generating hooking than recess portion 214e by the nearby position of direction of rotation, and generate
Reaction force (resistance) to a certain degree.
[midway state (2)]
Figure 14 (C)：Receiving the reaction force that is formed due to the hooking of leading edge 214b and protruding parts 202k also
When circuit board 214 being made to continue rotation, leading edge 214b is pulled into radially inner side, and circuit board 214 deforms.
[restriction state]
Figure 14 (D)：Also, so that circuit board 214 is rotated to leading edge 214b always when protruding parts 202k passes through,
Recess portion 214e comes the position of protruding parts 202k, becomes the state that protruding parts 202k is received in recess portion 214e.In the shape
Under state, be formed as the mutually chimeric relationships of protruding parts 202k and recess portion 214e, and as the rotation displacement of circuit board 214 by
The state of limitation.Also, therewith, circuit board 214 is also limited by flank 202h by falling off for opening.
[ensuring for insulation distance]
Figure 15 is the stereogram that current detector 200 is shown with the state kept flat.In this, it is assumed that circuit board 214 and magnetic
Property body core 210 is limited from falling off for housing main body 202.
Above-mentioned flank 202h is other than limiting circuit substrate 214 is from the falling off of housing main body 202, also to ensuring from outer
The distance (size H in figure) of the opening of shell main body 202 face to 214 outer surface of circuit board is contributed.Distance H is for reliably
Ensure the insulation of the various electronic units on the conductor (not shown) to circuit board 214 from be inserted through to inserting in hole 204 away from
From thus greatly improving the safety of current detector 200.
As described above, superiority below can be obtained according to the current detector 200 of the 2nd embodiment.
It (1), being capable of limiting circuit substrate by the way that protruding parts 202k and flank 202h is integrally formed in housing main body 202
214 and magnetic material core 210 fall off, because without using the other components for preventing from falling off (secure components such as screw), energy
Enough reduce part count and manufacturing cost.
(2) in assembling work, by the position and the housing main body 202 that make three notch 214d of circuit board 214
Corresponding three flank 202h it is consistent, position relationship appropriate can be easily adjusted into.When therefore, it is possible to prevent assembling work
Mistake (loss of time).
(3) also, circuit board 214 is only inserted into housing main body 202 and makes (counter clockwise direction) rotation in one direction,
It can lock-in circuit substrate 214, it is thus possible to quickly complete assembling work.Therefore, operating efficiency greatly improves.
(4) also, in the locking of circuit board 214 capable of obtaining clearly clickly sense, (leading edge 214b is in protruding portion
Position 202k by, protruding parts 202k is accepted in recess portion 214e when resistance sense), it is thus possible to trippingly carry out assembly work
Industry.
[the 3rd embodiment]
In the following, the 3rd embodiment is illustrated.
Figure 16 and Figure 17 is the skeleton diagram of the structure for the current detector 300 for showing the 3rd embodiment.Figure 16 is from front
Side shows that the stereogram of current detector 300, Figure 17 are from the stereogram shown in back side.In the following, to the electricity of the 3rd embodiment
The structure of current sensor 300 illustrates.
[housing main body]
Current detector 300 has the housing main body 302 of such as resin.Housing main body 302 constitutes current detector 300
Formalness, and conductor that the sensed current for being provided as main purpose flows through insert (not shown) also plays and is directed to
The fixed function of any object (same not shown).Also, the inside of housing main body 302 be accommodated with magnetic material core 310 (
Do not observe in Figure 17) and circuit board 314.Additionally, there are the inside of housing main body 302 to be filled and be sealed by sealing resin etc.
The case where, but there is omitted herein diagram (same as below).Also, it is equipped in circuit board 314 and is protruded in the outer surface of face side
Connector 308.
The roughly annular shape on the whole of housing main body 302, break-through thickness direction (front-rear direction) is formed in center portion
Insert hole 304.It is brighter in the part that the upper surface of housing main body 302 is bent under the vertical-position shown in Figure 16, Figure 17
It is aobvious, but in two sides and lower surface in addition to the part of bending, the shape of the part with plane is also presented.
In addition, in housing main body 302, incorporating section 302g is formed with around hole 304 inserting.Incorporating section 302g is in appearance
Device shape, when from the break-through direction (the insert direction of conductor) for inserting hole 304 one face (front of Figure 16) integral finish,
Another face (back side of Figure 17) is blocked.Circuit board 314 and magnetic material core are inserted by the opening of incorporating section 302g.
A pair of upper bracket 302a, floor bracket 302b, lower part are respectively constituted in addition, being formed in housing main body 302
Bracket 302c etc., so as to according to the fixation described above carried out to object (framework etc. for the equipment that sensed current flows through).
Upper bracket 302a and lower tray 302c is located at just to insert the outside for the housing main body 302 that hole 304 is center
Four corners.Also, the floor bracket 302b of both sides a pair prolongs from the bottom surface of housing main body 302 towards two sides in foliaceous
It stretches.
Wherein, upper bracket 302a and lower tray 302c be used to that housing main body 302 is overleaf fixed on object
The case where.In addition, floor bracket 302b is used for the case where housing main body 302 is fixed on object by bottom surface.No matter which kind of
In the case of, it is all formed with and can be inserted for any secure component (bolt, nut, protruded stigma etc.) in each bracket 302a, 302b, 302c
Hole.
[magnetic material core]
Figure 18 is the exploded perspective view of the current detector 300 of the 3rd embodiment.As described above, current detector 300 has
Be magnetic body core 310 and circuit board 314, they are incorporated in the incorporating section 302g of housing main body 302.Therefore, in shell
In main body 302, incorporating section 302g is formed as the pit shape (container-like) from face side towards back side, and incorporating section on the whole
302g is inserting formation ring-type around hole 304.Magnetic material core 310, which just surrounds, to be inserted hole 304 and is incorporated in incorporating section
In 302g.In the 3rd embodiment, magnetic material core 310 is the type for having secondary winding 310c, and shape is basic shown in Figure 18
On occupied by secondary winding 310c.Magnetic material core 310 has the annular being made of magnetic material in the inside of secondary winding 310c
Iron core (such as ring, do not observe in figure 18), air gap is formed in part of it.Hall element 330 is by (not shown)
Gasket is configured in the air gap.In addition, under completion status, Hall element 330 is installed in circuit board 314.
[circuit board]
In addition, current detector 300 have above-mentioned circuit board 314, the circuit board 314 also with magnetic material core 310
It is incorporated in together in the incorporating section 302g of housing main body 302.It is formed with and inserts 304 (wall plate of hole in circuit board 314
The notch 314a of the identical U-shaped of shape 302d) can be received in notch 314a and be passed through under receiving state
Wall plate 302d around jack 304.Also, magnetic material core 310 is equipped with (not shown) at its circumferential multiple position (at three)
Magnetic material core 310 is fixed on circuit board 314 by protruded stigma by these protruded stigmas.In addition, being equipped in circuit board 314 above-mentioned
Connector 308 and Hall element 330 and various electronic units, current detection circuit is consequently formed.
[other packaging containers]
In the 3rd embodiment, in addition to magnetic material core 310 and circuit board 314, in 302 (incorporating section of housing main body
It is also accommodated with ring cover 320 in 302g).Ring cover 320 by being incorporated in incorporating section 302g with connecting with circuit board 314
It is interior, rotation displacement itself is just limited, consequently also limiting circuit substrate 314 and magnetic material core 310 fall off.First, to ring cover
320 shape etc. illustrates.
Ring cover 320 generally forms annular shape, and center portion is formed as the opening consistent with hole 304 is inserted.It surrounds
The opening, inner sleeve 320a are formed as cylindric.In addition, not observing in figure 18, it is formed on the outside of inner sleeve 320a
The outer sleeve of interval forms dual cylindrical shape by these inner sleeves 320a and outer sleeve.
Also, in ring cover 320, flange part 320f is formed on the outside of inner sleeve 320a, flange part 320f's
Periphery is also formed with rim part 320g.Also, it is circumferentially spaced to have alternately formed lock arm in the outer surface of rim part 320g
320b and handle 320d, these lock arms 320b and handle 320d are separated by about 90 ° in the circumferential.Lock arm 320b and handle 320d
It is all protrudedly formed to radial outside, wherein be formed with margining tablet 320c in the end of lock arm 320b.Margining tablet 320c
Extend along the periphery tangential direction of ring cover 320 in the end of lock arm 320b.
[limit structure]
Figure 19 is the front view shown using the circuit board 314 of ring cover 320 and the restriction state of magnetic material core 310.
As described above, ring cover 320 is incorporated in housing main body 302 together with circuit board 314 and magnetic material core 310
In (incorporating section 302g).Under the receiving state, the inner surface that above-mentioned lock arm 320b extends to housing main body 302 is close
Before, also contacted with the inner surface of housing main body 302 by the margining tablet 320c of end.On the other hand, in housing main body 302
The position opposite with margining tablet 320c is integrally formed with protruding parts 302k in surface, and protruding parts 302k is located at than margining tablet
Positions of the 320c close to the opening face of housing main body 302.In this state, rotation of the ring cover 320 in the circumferential direction for inserting hole 304
Transfer position is limited, and is also limited from falling off for the opening therewith.
Figure 20 is the sectional view along the current detector 300 of the XX-XX lines in Figure 19.Figure 21 is along in Figure 19
The phantom of XXI-XXI lines.In addition, being facing up and show with current detector 300 in Figure 20, Figure 21.
Ring cover 320 is embedded in the wall plate of housing main body 302 by above-mentioned inner sleeve 320a and outer sleeve 320e
In 302d, it can be carried out to the circumferential rotation displacement for inserting hole 304 in the part.But according to fig. 20, it is illustrated in fig. 21
Section is it is found that ring cover 320 is put down by the margining tablet 320c and the inner surface of housing main body 302 of the ends its lock arm 320b
Face contacts, and thus the rotation displacement of ring cover 320 is limited.
In addition, the section shown by 1 having close to the position in opening face than margining tablet 320c it is found that protrude according to fig. 2
Position 302k, protruding parts 302k limit displacements of the margining tablet 320c to opening direction, and thus ring cover 320 passes through housing main body
Falling off for 302 opening is also limited.Its result is it is found that circuit board 314 and magnetic material core 310 pass through housing main body 302
Falling off for opening is limited by ring cover 320.
Figure 22 and Figure 23 is the sequential chart for the action for showing to be limited using ring cover 320.In addition, below suitably
Together referring to Fig.1 9.
Figure 22 (A)：In the 3rd embodiment, magnetic material core 310 and circuit board 314 are stored according to described above
In the state that housing main body 302 (incorporating section 302g) is interior, ring cover 320 is also stored.Therefore, in the process of assembly, first
Circuit board 314 and magnetic material core 310 are accommodated in housing main body 302, ring cover 320 is then stored.At this point, ring cover
320 are accommodated the shape for forming the position relationship for making lock arm 320b not contacted with the inner surface of housing main body 302 as shown in the figure
State.Then, the direction (clockwise direction) of the arrow along figure of ring cover 320 is made to rotate using handle 320d etc..
Figure 22 (B)：Make ring cover 320 rotation to a certain degree when, become margining tablet 320c at first with housing main body 302
The state of inner surface contact.At this point, margining tablet 320c is in tabular, thus for the rotation for thus locating to start, margining tablet 320c
Hooking is generated, and generates reaction force (resistance) to a certain degree.
Figure 23：It receiving the reaction force because of caused by margining tablet 320c to the hooking of 302 inner surface of housing main body, going back
When ring cover 320 being made to continue rotation, margining tablet 320c is along 302 inner surface of housing main body by flexural deformation.Therefore, it is based on limit
The reaction force of film-making 320c continues to increase.
[referring to Fig.1 9]
Then, so that ring cover 320 is rotated to margining tablet 320c always parallel with the inner surface of housing main body 302 on the whole
And when the state of contact, in the position, the rotation of ring cover 320 is limited.In this state, the rotation of ring cover 320 is double
To limitation.
In addition, in the 3rd embodiment, additionally it is possible to only be inserted into ring cover 320 and form restriction state, without revolving
Turn.It is explained below.
[spin locking]
First, Figure 24 is the partial perspective view for showing to make ring cover 320 to rotate and be set as the example of restriction state.
Figure 24 (A)：In the case where as described above rotating ring cover 320, in margining tablet 320c and housing main body
It is shifted along direction of rotation in the state of 302 inner surface contact.
Figure 24 (B)：Also, margining tablet 320c becomes limitation shape by parallel with 302 inner surface of housing main body and contacting
State.
[being inserted into locking]
Then, Figure 25 is to show that the part that ring cover 320 is only merely inserted into the example that can be set as restriction state is stood
Body figure.In the case where ring cover 320 is merely inserted into, the position relationship observed along the circumferential direction for inserting hole 304 with initially
Position consistency shown in Figure 19.In this state, when ring cover 320 is inserted into housing main body 302, as shown in figure 25, limitation
Piece 320c is pushed into the state of opposite with protruding parts 302k along direction of insertion.At this point, protruding parts 302k directions are inserted into
Direction is climbed inclination, thus generates reaction force (resistance) to a certain degree for the insertion of ring cover 320.Receiving this
When reaction force also continues to be inserted into ring cover 320, margining tablet 320c passes through on the inclined surface of protruding parts 302k soon, and
As restriction state shown in Figure 24 (B).In this state, ring cover 320 is by limitation rotation displacement, and passes through the de- of opening
It falls and is also limited, as a result, circuit board 314 and falling off for magnetic material core 310 are also limited.
[ensuring for insulation distance]
In the 3rd embodiment, ring cover 320 other than limiting circuit substrate 314 is from the falling off of housing main body 302,
Also to ensuring from 302 opening face of housing main body being contributed apart from bigger to 314 outer surface of circuit board.That is, due to annular
The presence of lid 320 correspondingly increases the distance of its peripheral length part, thus with no ring cover 320 the case where compared with, energy
Enough ensure that insulation distance is larger.By ensuring the insulation distance, the safety of current detector 300 is greatly improved.
As described above, superiority below can be obtained according to the current detector 300 of the 3rd embodiment.
(1) falling off for ring cover 320 is limited by the way that protruding parts 302k is integrally formed in housing main body 302, it can
Limiting circuit substrate 314 and magnetic material core 310 fall off.It therefore, there is no need to using a number of other component (spiral shells for preventing from falling off
The secure components such as nail), only lean on ring cover 320 that can form restriction state, thus still can reduce part count and be manufactured into
This.
(2) in assembling work, by make ring cover 320 lock arm 320b position and make margining tablet 320c not with outside
The angle of the inner surface contact of shell main body 302 is consistent, can be easily adjusted into position relationship appropriate.Therefore, it is possible to prevent from filling
Mistake (loss of time) when with operation.
(3) also, only circuit board 314 and magnetic material core 310 are inserted into housing main body 302, then insert ring cover 320
Enter housing main body 302 and make (clockwise direction) rotation in one direction, you can locking ring cover 320, it is thus possible to is rapid complete
At assembling work.Therefore, operating efficiency greatly improves.
(4) also, in the locking of ring cover 320 can obtain clearly clickly sense (be inserted into lock when margining tablet
320c protruding parts 302k by when resistance sense, in spin locking until in margining tablet 320c and housing main body 302
Resistance sense when surface contacts), it is thus possible to trippingly carry out assembling work.
The present invention is not restricted by above-mentioned each embodiment, can carry out various modifications to implement.
In the 1st, the 2nd embodiment, the configuration of flank 102h, 202h and protruding parts 102k, 202k and number are to appoint
Meaning, it can suitably add change etc..
In the 3rd embodiment, the configuration of margining tablet 320c and number are arbitrary, and can suitably add change etc..And
And as other packaging containers, the example of ring cover 320 is listed, but packaging container may not be ring-type.
In addition, the current detector 100,200,300 and part thereof of construction that are enumerated together with diagram are excellent after all
One example of choosing can be also suitable for carrying out certainly when adding various parts to essential structure or replacing a part of component
The present invention.
Claims (4)
1. a kind of current detector, which is characterized in that the current detector has：
Housing main body is formed on the inside of it and inserts hole, and the conductor of sensed current, which is inserted to this, to be inserted in hole, is inserted described
Container-like incorporating section is formed with around hole, the face when incorporating section is from the insert direction from the conductor is opened
Mouth, another face block；
Cricoid magnetic material core is made with being arranged in the incorporating section around the state for inserting hole due to being detected electricity
The conducting of stream and the magnetic field that generates are collected；
Circuit board is incorporated in the incorporating section together with the magnetic material core, root is formed in the circuit board
According to the detection circuit of the flux detection sensed current after being collected by the magnetic material core；
Limiting unit is formed as one with the housing main body, limits the circuit board and together with the circuit board
It is accommodated in rotation displacement of the either side in other packaging containers in the incorporating section in the circumferential direction for inserting hole, to
The circuit board is limited to fall off by the opening.
2. current detector according to claim 1, which is characterized in that
The limiting unit includes from the protruding parts of inner surface prominent formation into the incorporating section of the housing main body, institute
It states protruding parts and is in and be accommodated in the circuit board and other packaging containers of the receiving state in the incorporating section
Either side portion contacts.
3. current detector according to claim 1 or 2, which is characterized in that
The limiting unit includes protruding to be formed along a face for forming the opening from the inner surface of the housing main body
The position of ribbed, the position of the ribbed are outer with the circuit board in the receiving state being accommodated in the incorporating section
Surface contacts.
4. current detector according to claim 3, which is characterized in that
The circuit board has notch, and the shape of the limitation of the limiting unit and rotation displacement is resisted in the circuit board
Under state, the notch not location contacts with the ribbed, by the portion for relatively receiving the ribbed in the notch
Position, allows the circuit board to fall off by the opening.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2017060621A JP6495364B2 (en) | 2017-03-27 | 2017-03-27 | Current detector |
| JP2017-060621 | 2017-03-27 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108663559A true CN108663559A (en) | 2018-10-16 |
| CN108663559B CN108663559B (en) | 2022-04-01 |
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| CN201820416713.XU Active CN208255300U (en) | 2017-03-27 | 2018-03-26 | Current detector |
| CN201810252529.0A Active CN108663559B (en) | 2017-03-27 | 2018-03-26 | Current detector |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201820416713.XU Active CN208255300U (en) | 2017-03-27 | 2018-03-26 | Current detector |
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| CN (2) | CN208255300U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20230042505A1 (en) * | 2021-08-06 | 2023-02-09 | Suzhou Littelfuse Ovs Co., Ltd. | Snap-on current sensor design |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6495364B2 (en) * | 2017-03-27 | 2019-04-03 | 株式会社タムラ製作所 | Current detector |
| JP6550115B2 (en) * | 2017-11-22 | 2019-07-24 | 株式会社ユー・アール・ディー | Current sensor |
| US11508541B2 (en) | 2018-12-20 | 2022-11-22 | Siemens Aktiengesellschaft | Fuse having an integrated measuring function, and fuse body |
| US11923163B2 (en) | 2019-01-16 | 2024-03-05 | Siemens Aktiengesellschaft | Fuse element and fuse |
| EP3686612A1 (en) * | 2019-01-22 | 2020-07-29 | Siemens Aktiengesellschaft | Current sensor with improved handling |
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Also Published As
| Publication number | Publication date |
|---|---|
| JP2018163052A (en) | 2018-10-18 |
| JP6495364B2 (en) | 2019-04-03 |
| CN108663559B (en) | 2022-04-01 |
| CN208255300U (en) | 2018-12-18 |
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