CN109997209A - Electromagnetic relay and intelligence instrument - Google Patents

Abstract

A kind of electromagnetic relay, has the magnetic shielding part at least one party's setting of a pair of of opposite face of shell, and a pair of opposite face is orthogonal with the rotation axis of rotating block.Magnetic shielding part has magnetic substance portion and nonmagnetic material portion, and nonmagnetic material portion is arranged on the extending direction of rotation axis, and at least part of the part in at least any gap in covering first~the 4th gap of shell is arranged in.

Description

Electromagnetic relay and intelligence instrument

Technical field

The present invention relates to electromagnetic relay and the intelligence instrument of electromagnetic relay is used.

Background technique

Electromagnetic relay disclosed in patent document 1 has in the internal rectangular box shell with incorporating section.In the storage Portion is configured with: fixed contact；Mobile contact piece has the moving contact that can contact with fixed contact and discretely configure；Electricity Magnet part carries out polarity reversion according to the sense of current being supplied to；Rotating block, along according to the polarity in electromagnet portion not With and different direction is rotated；Movable member is connect with rotating block and mobile contact piece.In the electromagnetic relay, Permanent magnet is set on rotating block, by the magnetic interaction of the permanent magnet and electromagnet portion, rotates rotating block.

Patent document 1:(Japan) special open 2013-222699 bulletin

However, in above-mentioned electromagnetic relay, due to applying the magnetic field (hereinafter referred to as external magnetic field) of strength from outside, Sometimes the on/off state between fixed contact and moving contact is forcibly changed.Preventing this fixed contact and movable In the case where the pressure change of on/off state between contact, consider to utilize the masking shell being made of magnetic substance (such as iron) Body covering shell influences the incorporating section of interior of shell by external magnetic field.

But by covering the electromagnetic relay using shielding casing, external magnetic field can be prevented or reduced to storage The inflow in portion, but the magnetic substance for constituting shielding casing causes shadow to the permanent magnet of rotating block and the magnetic interaction in electromagnet portion It rings, operation voltage needed for the rotation of rotating block may be significantly increased.

Summary of the invention

The issue of the present invention is to provide a kind of increase of operation voltage for being able to suppress rotating block and reduce external magnetic field Influence electromagnetic relay and used the intelligence instrument of the electromagnetic relay.

The electromagnetic relay of one aspect of the present invention has:

The insulating properties shell of box-shaped has incorporating section in inside；

The fixed contact side terminal of plate, is fixed on the shell, extends to the storage from the outside of the shell Portion, and there is the fixed contact positioned at the incorporating section；

The moving contact side terminal of plate, is fixed on the shell, extends to the storage from the outside of the shell Portion and it is configured at the shell side by side with the fixed contact side terminal；

Mobile contact piece is configured at the incorporating section and is electrically connected with the moving contact side terminal, and have with The opposite moving contact of the fixed contact, the moving contact flexible deformation, can contact and separate with the fixed contact；

Electromagnet portion is configured at the incorporating section and can be supplied to the electric current of different directions；

Rotating block is configured at the incorporating section, along different according to the sense of current supplied to the electromagnet portion And different direction, it is rotated relative to the shell around rotation axis；

Movable member, it is mobile according to the rotation direction of the rotating block, make the moving contact relative to the fixation Contact contact or separation；

Magnetic shielding part is set at least one party of a pair of of opposite face of the shell, a pair of opposite face with it is described Rotation axis is orthogonal,

The electromagnet portion has the first magnetic yoke and the second magnetic yoke, and first magnetic yoke and the configuration of the second magnetic yoke are described movable Between contact chip and the electromagnet portion, and front end face is mutually relative to and having configured with the rotation between the front end face The rotating block configuration space of block,

The rotating block includes

First iron plate, with first end to first magnetic yoke side prominent and the second end to the second magnetic yoke pleurapophysis Mode out is configured at the side of the rotating block；

Second iron plate, with first end to first magnetic yoke side prominent and the second end to the second magnetic yoke pleurapophysis Mode out is configured at the other side of the rotating block；

Permanent magnet is set between first iron plate and second iron plate,

When the moving contact leaves the fixed contact, in the first end of first iron plate and described the There is the first gap, when the moving contact and the fixed contact contact, in the institute of first iron plate between one magnetic yoke Stating has the second gap between the second end and second magnetic yoke, when the moving contact and the fixed contact contact, There is third space between the first end and first magnetic yoke of second iron plate, left in the moving contact When the fixed contact, there is the 4th gap between the second end and second magnetic yoke of second iron plate,

The magnetic shielding part has magnetic substance portion and nonmagnetic material portion,

The nonmagnetic material portion configuration is on the extending direction of the rotation axis, the covering of the shell described the first~the At least part of the part at least any gap in four gaps.

In addition, another aspect of the present invention provides a kind of intelligence instrument, has above-mentioned electromagnetic relay.

According to the electromagnetic relay of above-mentioned aspect, have a pair of of the phase orthogonal with the rotation axis of rotating block for being set to shell The magnetic shielding part of at least one party on opposite.Thereby, it is possible to reduce influence of the external magnetic field to the incorporating section in shell.

In addition, magnetic shielding part has magnetic substance portion and nonmagnetic material portion, nonmagnetic material portion is configured due to inside the shell Magnetic field that portion generates and be easy affected part and cover gap between the magnetic yoke in electromagnet portion and the iron plate of rotating block Casing part at least part.As a result, with the electromagnetic relay phase for the magnetic shielding part for having not set nonmagnetic material portion Than the gap between the magnetic yoke in electromagnet portion and the iron plate of rotating block can be made far from the magnetic substance portion of magnetic shielding part.As a result, It can reduce magnetic substance portion shadow caused by the permanent magnet of rotating block and the magnetic interaction in electromagnet portion of magnetic shielding part It rings, the increase of operation voltage needed for being able to suppress the rotation of rotating block.

In addition, being able to suppress the movement electricity of rotating block using the electromagnetic relay according to the intelligence instrument of above-mentioned aspect The increase of pressure, and can reduce the influence of external magnetic field.As a result, it is possible to higher precision measure electric power.

Detailed description of the invention

Fig. 1 is the perspective view for indicating the electromagnetic relay of first embodiment of the invention；

Fig. 2 is to indicate that the electromagnetic relay of Fig. 1 removes the top view of the state of lid；

Fig. 3 is the top view of the configuration in the nonmagnetic material portion for the magnetic shielding part of the electromagnetic relay of explanatory diagram 1；

Fig. 4 be the configuration in the nonmagnetic material portion of the magnetic shielding part in the electromagnetic relay for explanatory diagram 1 and Fig. 3 Continuous top view；

Fig. 5 is the top view for indicating the first case of the magnetic shielding part of electromagnetic relay of Fig. 1；

Fig. 6 is the top view for indicating the second case of the magnetic shielding part of electromagnetic relay of Fig. 1；

Fig. 7 is the top view for indicating the third example of the magnetic shielding part of electromagnetic relay of Fig. 1；

Fig. 8 is the 4th top view for indicating the magnetic shielding part of the electromagnetic relay of Fig. 1；

Fig. 9 is the 5th top view for indicating the magnetic shielding part of the electromagnetic relay of Fig. 1.

Description of symbols

1: electromagnetic relay

10: shell

11: matrix

111: the first side wall

112: second sidewall

113: third side wall

114: the four side walls

12: lid

13: incorporating section

20: fixed contact side terminal

21: fixed contact

30: moving contact side terminal

301: one end

31: portion of terminal

32: mobile contact piece

33: moving contact

34: bending section

40: magnetic shielding part

41: magnetic substance portion

42,142,242: exposed division (an example in nonmagnetic material portion)

43,44,45,46,49: opening portion

47,147: notch

The first iron plate of 48:(and the second iron plate) movable area

50: electromagnet portion

501: coil

51: the first magnetic yokes

511: interconnecting piece

512: adsorption section

52: the second magnetic yokes

521: interconnecting piece

522: adsorption section

53: coil terminals

54: rotating block configuration space

60: rotating block

61: block shell

62: rotation axis

63: permanent magnet

64: the first iron plates

641: first end

642: the second end

65: the second iron plates

651: first end

652: the second end

66: arm

67: support plate

70: movable member

140,240: auxiliary magnetic shielding part

CL: winding center axis

L: imaginary line

S1~S4: gap

Specific embodiment

Hereinafter, illustrating one embodiment of the present invention with reference to the accompanying drawings.In addition, in the following description, using as needed Indicate the term (for example, term comprising "upper", "lower", " right side ", " left side ") of specific direction or position, but these terms make The present invention is readily appreciated that referring to attached drawing with being, is not that technical scope of the invention is limited by the meaning of these terms.In addition, The following description substantially only example, is not intended to limit that the present invention, it is using object or its purposes.In addition, attached drawing is to show The ratio of the figure of meaning property, ratio of each size etc. and reality may not be consistent.

As shown in Figure 1, the electromagnetic relay 1 of an embodiment of the present invention has: the insulating properties shell 10 of box-shaped is consolidated respectively Conductive plate fixed contact side terminal 20 and conductive plate moving contact side due to the shell 10 Son 30.

As shown in Figure 1, shell 10 is constituted using the matrix 11 of box-like and the lid 12 of plate, as shown in Fig. 2, having inside it There is incorporating section 13.Magnetic shielding part 40 is equipped in the upper surface of the lid 12 of shell 10.The magnetic shielding part 40 for example passes through bonding Agent etc. is fixed on lid 12.

Fixed contact side terminal 20 is along the first side wall 111 and second sidewall 112 opposite with the longitudinal direction of matrix 11 In the first side wall 111, extend to incorporating section 13 from the outside of shell 10.The middle part of the fixed contact side terminal 20 is fixed on Third side wall 113 in the third side wall 113 and the 4th side wall 114 opposite with the broadside of shell 10, makes its plate thickness direction It is substantially uniform with the longitudinal direction of shell 10.The face in the plate thickness direction in the incorporating section of fixed contact side terminal 20 13 is fixed with Fixed contact 21.The fixed contact 21 configuration is in the plate thickness side of fixed contact side terminal 20 upwardly close to the face of second sidewall 112 Upper (that is, face on the left of Fig. 2).

Moving contact side terminal 30 is arranged side by side with fixed contact side terminal 20 at spaced intervals along the longitudinal direction of matrix 11 Configuration, is electrically independently arranged relative to fixed contact side terminal 20.The middle part and fixed contact of the moving contact side terminal 30 Side terminal 20 is fixed on third side wall 113 in the same manner, keeps its plate thickness direction and the longitudinal direction of shell 10 substantially uniform.Movable touching The one end 301 for the longitudinal direction of point side terminal 30 being located in incorporating section 13 is fixed on the 4th side wall 114.

In addition, in the outside of shell 10, the third of fixed contact side terminal 20 and moving contact side terminal 30 from shell 10 Side wall 113 extends to same direction (that is, upside of Fig. 2).

Mobile contact piece 32 is fixed in the one end 301 of the longitudinal direction of moving contact side terminal 30.The mobile contact Piece 32 using by the plate component of the rectangle of two conductive elastically deformables along the laminated body that plate thickness direction is overlapped and It constitutes.In addition, the plate face in the other end of the longitudinal direction of mobile contact piece 32 is fixed with moving contact 33.The moving contact 33 are configured in the mode opposite relative to fixed contact 21,32 flexible deformation of mobile contact piece, as a result, relative to fixed contact 21 Contact or separation.

It is equipped between the end and moving contact 33 for the portion of terminal 31 for being fixed on mobile contact piece 32 to fixed contact side Terminal 20 is with U-shaped bending section 34 outstanding.When can absorb and mitigate mobile contact 32 flexible deformation of piece using the bending section 34 Mobile contact piece 32 deflection, and ensure smooth acting characteristic.

In addition, as shown in Fig. 2, electromagnetic relay 1 has electromagnet portion 50, rotating block 60 and movable member 70.Electromagnet Portion 50, rotating block 60 and movable member 70 are accommodated in the incorporating section 13 of shell 10.

As shown in Fig. 2, electromagnet portion 50 is configured at the position adjacent with the second sidewall 112 of incorporating section 13.The electromagnet Portion 50 is included to be carried out centered on the winding center axis CL that the broadside (that is, up and down direction of Fig. 2) along matrix 11 extends Coiled coil 501, from winding center axis CL extend electromagnet portion 50 axis direction both ends along coil 501 outer surface The first magnetic yoke of plate 51 and the second magnetic yoke of plate 52 each extended over.First magnetic yoke 51 and the configuration of the second magnetic yoke 52 are in mobile contact Between piece 32 and electromagnet portion 50.

First magnetic yoke 51 is extended using the upper end of the axis direction from electromagnet portion 50 along the third side wall 113 of incorporating section 13 Interconnecting piece 511,512 structure of adsorption section from second sidewall 112 to the 4th side wall 114 that extend from the front end of the interconnecting piece 511 along At.

Second magnetic yoke 52 is extended using the lower end of the axis direction from electromagnet portion 50 along the third side wall 113 of incorporating section 13 Interconnecting piece 521,522 structure of adsorption section from second sidewall 112 to second sidewall 113 that extend from the front end of the interconnecting piece 521 along At.

The adsorption section 512 of first magnetic yoke 51 and the adsorption section 522 of the second magnetic yoke 52 are along the short transverse of shell 10 The plane of (that is, the paper of Fig. 2 penetrates through direction) is seen, is located at same imaginary line L with the center line extended along second sidewall 112 On mode configure.

The front end face of the adsorption section 522 of the front end face of the adsorption section 512 of first magnetic yoke 51 and the second magnetic yoke 52 is mutually opposite, It is equipped with the rotating block configuration space 54 of configurable rotating block 60 therebetween.In addition, the lower end in electromagnet portion 50 is equipped with two lines Terminal 53 is enclosed, the electric current of two different directions can be supplied to electromagnet portion 50 via the coil terminals 53.

Rotating block 60 have block shell 61, set on the permanent magnet 63 of the inside of block shell 61, to clip the permanent magnet 63 and opposite mode is individually fixed in the first iron plate 64 of the plate on block shell 61 and the second iron plate 65 of plate.

In addition, rotating block 60 has the short transverse (that is, the paper of Fig. 2 penetrates through direction) along shell 10 in block shell 61 The rotation axis 62 of extension.The rotation axis 62 is located at along the adsorption section 512 of the first magnetic yoke 51 and the adsorption section 522 of the second magnetic yoke 52 Extending direction extend imaginary line L on, be rotatably supported on the matrix 11 and support plate 67 of shell 10.Support plate 67 Extend with plate and along the up and down direction of Fig. 2, and the mode opposite with the bottom surface of matrix 11 with the plate face of a side, it will be upper End is mounted on the adsorption section 512 of the first magnetic yoke 51, and lower end is mounted on to the adsorption section 522 of the second magnetic yoke 52.

First iron plate 64 is configured relative to the side of rotating block 60, i.e. imaginary line L in the adsorption section of the first magnetic yoke 51 512 and second magnetic yoke 52 adsorption section 522 left side (that is, 112 side of second sidewall), first end 641 is to 51 side of the first magnetic yoke Prominent and the second end 642 is prominent to 52 side of the second magnetic yoke.In addition, the other side, i.e. of second iron plate 65 relative to rotating block 60 Imaginary line L, the right side configured in the adsorption section 522 of the adsorption section 512 and the second magnetic yoke 52 of the first magnetic yoke 51 is (that is, the first side 111 side of wall), first end 651 is prominent to 51 side of the first magnetic yoke and the second end 652 is prominent to 52 side of the second magnetic yoke.

First iron plate 64 and the second iron plate 65 configure as follows respectively, that is, and the plate face of a side is mutually opposite, and, phase Pair plate face upside (that is, 113 side of third side wall) the 641,651 and first magnetic yoke 51 of end (an example of first end) suction Attached portion 512 is accessible, the end (an example of the second end) 642,652 of the downside (that is, 114 side of the 4th side wall) of opposite plate face It is accessible with the adsorption section 522 of the second magnetic yoke 52.

In addition, the side in 111 side of the first side wall of rotating block 60 is equipped with the arm 66 connecting with movable member 70.

Movable member 70 can be contacted along moving contact 33 relative to fixed contact 21 or isolated contact separation direction (that is, left and right directions of Fig. 2) is mobile, and with the end of 113 side of third side wall in the longitudinal direction of mobile contact piece 32 (that is, The end of the upside of Fig. 2) connection.That is, movable member 70 is moved by the rotation of rotating block 60, make the length of mobile contact piece 32 The end of 113 side of third side wall on edge direction is contacted along moving contact 33 relative to fixed contact 21 or isolated contact point It is mobile from direction (that is, left and right directions of Fig. 2).

The electric current that prescribed direction is supplied to electromagnet portion 50, make state shown in Fig. 2, i.e. the first iron plate 64 lower end and The adsorption section 522 of second magnetic yoke 52 contacts, and the shape that the upper end of the second iron plate 65 is contacted with the adsorption section 512 of the first magnetic yoke 51 The rotating block 60 of state rotates clockwise.In this case, by the rotation of rotating block 60, arm 66 is also along up time The rotation of needle direction, and move movable member 70 to the right.Electromagnetic relay 1 is touched from moving contact 33 relative to fixed as a result, 21 isolated reset states of point become the action state that moving contact 33 is contacted relative to fixed contact 21.

In addition, to electromagnet portion 50 for giving the electric currents of prescribed direction different directions, make the upper end of the first iron plate 64 with The adsorption section 512 of first magnetic yoke 51 contacts, and the shape that the lower end of the second iron plate 65 is contacted with the adsorption section 522 of the second magnetic yoke 52 The rotating block 60 of state rotates counterclockwise.In this case, make arm 66 also along inverse by the rotation of rotating block 60 Clockwise rotation, and move movable member 70 to the left.Electromagnetic relay 1 is from moving contact 33 relative to fixation as a result, The action state that contact 21 contacts becomes the reset state isolated relative to fixed contact 21 of moving contact 33.

That is, contact direction and moving contact 33 that rotating block 60 can be contacted in moving contact 33 with fixed contact 21 are left admittedly It is rotated on the detaching direction of fixed contact 21, and in the side different and different according to the sense of current supplied to electromagnet portion 50 To being rotated.

In addition, when moving contact 33 leaves fixed contact 21, as shown in figure 3, in the first end 641 of the first iron plate 64 There is the first gap S1 between the first magnetic yoke 51, when moving contact 33 and fixed contact 21 contact, as shown in figure 4, the There is the second gap S2 between the second end 642 of one iron plate 64 and the second magnetic yoke 52.In addition, in moving contact 33 and fixed touching When 21 contact of point, as shown in figure 4, there is third space S3 between the first end 651 and the first magnetic yoke 51 of the second iron plate 65, When moving contact 33 leaves fixed contact 21, as shown in figure 3, in the second end 652 and the second magnetic yoke 52 of the second iron plate 65 Between have the 4th gap S4.

That is, as shown in figure 4, being rotated up rotating block 60 in the contact side for contacting moving contact 33 with fixed contact 21 When, third space S3 is set between the first end 651 and the first magnetic yoke 51 of the second iron plate 65, and in the first iron plate 64 Second gap S2 is set between the second end 642 and the second magnetic yoke 52.In addition, as shown in figure 3, rotating block 60 is made to make movably to touch Point 33 leaves when rotating on the detaching direction of fixed contact 21, the first end 641 of the first iron plate 64 and the first magnetic yoke 51 it Between the first gap S1 is set, and between the second end 652 of the second iron plate 65 and the second magnetic yoke 52 be arranged the 4th gap S4.

As shown in Figures 3 and 4, magnetic shielding part 40 has magnetic substance portion 41 and the nonmagnetic material portion set on magnetic substance portion 41 An example exposed division 42.The exposed division 42 from the short transverse of shell 10 by being respectively provided with the first opening portion of rectangle 43, the second opening portion 44, third opening portion 45 and the 4th opening portion 46 are constituted.

The part of the first gap of the covering S1 for the lid 12 that first opening portion 43 configured in shell 10, and make the part in electromagnetism The external of relay 1 exposes.The part of the second gap of the covering S2 for the lid 12 that second opening portion 44 configured in shell 10, and make this Expose in the external of electromagnetic relay 1 part.The covering third space S3's for the lid 12 that third opening portion 45 configured in shell 10 Part, and expose the part in the external of electromagnetic relay 1.In addition, the lid 12 that the 4th opening portion 46 configured in shell 10 The part of the 4th gap S4 is covered, and exposes the part in the external of electromagnetic relay 1.

That is, exposed division 42 makes the first iron of the first magnetic yoke 51 for covering electromagnet portion 50 and the second magnetic yoke 52 and rotating block 60 The part of the lid 12 of the shell 10 of gap S1, S2, S3, S4 between piece 64 and the second iron plate 65 is in the outside of electromagnetic relay 1 Expose.

In this way, having and one orthogonal with the rotation axis 62 of rotating block 60 of shell 10 being arranged in above-mentioned electromagnetic relay 1 To the magnetic shielding part 40 of a side of opposite face.Thereby, it is possible to reduce external magnetic field relative to the incorporating section 13 in shell 10 It influences.

In addition, magnetic shielding part 40 have magnetic substance portion 41 and be set to magnetic substance portion 41 4 opening portions 43,44,45, 46, on the extending direction for the rotation axis 62 that each opening portion 43,44,45,46 is arranged respectively at rotating block 60, covering electromagnet portion 50 Magnetic yoke 51,52 and rotating block 60 iron plate 64,65 between gap S1, S2, S3, S4 shell 10 lid 12 part.By This can make electromagnet portion 50 compared with the electromagnetic relay for the magnetic shielding part for having not set opening portion 43,44,45,46 Magnetic yoke 51,52 and rotating block 60 iron plate 64,65 between gap S1, S2, S3, S4 far from constitute magnetic shielding part 40 magnetic Property body portion 41.Thereby, it is possible to reduce permanent magnet 63 and electricity of the magnetic substance portion 41 for constituting magnetic shielding part 40 to rotating block 60 It is influenced caused by the magnetic interaction of magnet part 50, the increase of operation voltage needed for being able to suppress the rotation of rotating block 60.

That is, above-mentioned electromagnetic relay 1 is able to suppress the increase of the operation voltage of rotating block 60, and it can reduce external magnetic field Influence to the incorporating section 13 of shell 10.

In addition, above-mentioned electromagnetic relay 1 can be suitable for such as intelligence instrument.Thereby, it is possible to provide to inhibit rotating block The increase of operation voltage, and can reduce the intelligence instrument of the influence of external magnetic field.

As long as in addition, each opening portion 43,44,45,46 of magnetic shielding part 40 be configured at the corresponding gap S1, S2 of covering, At least part of the part of the lid 12 of the shell 10 of S3, S4.

In addition, as long as the opening portion of magnetic shielding part 40 is set to the lid of the shell 10 of covering 4 gaps S1, S2, S3, S4 At least any portion of 12 part.

Exposed division 42, which is not limited to utilize, to be made first magnetic yoke 51 in electromagnet portion 50 and the second magnetic yoke 52 and rotating block 60 The part of the lid 12 of the shell 10 of gap S1, S2, S3, S4 covering between first iron plate 64 and the second iron plate 65 is in electromagnetism relay The case where external 4 opening portions 43,44,45,46 exposed of device 1 are constituted.For example, as shown in figure 5, also can use not only makes Gap S1, S2, S3, S4 between the magnetic yoke 51,52 in electromagnet portion 50 and the iron plate 64,65 of rotating block 60 (in Fig. 5, is only schemed Showing gap S1 and gap S4) part of the lid 12 of the shell 10 of covering exposes in the external of electromagnetic relay 1, and makes covering the The part of the lid 12 of the shell 10 of one magnetic yoke 51 and the second magnetic yoke 52 is constituted in the external notch 47 exposed of electromagnetic relay 1 Exposed division 42.

In this way, the magnetic for constituting magnetic shielding part 40 can be further decreased by constituting exposed division 42 using notch 47 Property body portion 41 is influenced caused by magnetic interaction of the permanent magnet 63 of rotating block 60 with electromagnet portion 50, can reliably be pressed down The increase of operation voltage needed for the rotation of rotating block 60 processed.

In addition, as long as the configuration of notch 47 is near by at least front end face of the adsorption section 512 of the first magnetic yoke 51 and second At least part of the part of the lid 12 for the shell 10 that at least front end face of the adsorption section 522 of magnetic yoke 52 nearby covers.

In addition, what as long as the configuration of notch 47 covered near by at least front end face of the adsorption section 512 of the first magnetic yoke 51 The lid of the part of the lid 12 of shell 10 and the shell 10 for nearby covering at least front end face of the adsorption section 522 of the second magnetic yoke 52 At least any portion of 12 part.

For example, as shown in fig. 6, also can use following notch 147 constitutes exposed division 42.The notch not only make by Gap S1, S2, S3, S4 between the magnetic yoke 51,52 in electromagnet portion 50 and the iron plate 64,65 of rotating block 60 (are illustrated only in Fig. 6 Gap S1 and gap S4) covering shell 10 lid 12 part and cover the part of lid 12 of shell 10 of magnetic yoke 51,52 and exist The external of electromagnetic relay 1 exposes, and makes the part for covering the lid 12 of the shell 10 of the entire movable area 48 of iron plate 64,65 External in electromagnetic relay 1 exposes.

In this way, the magnetic for constituting magnetic shielding part 40 can be further decreased by constituting exposed division 42 using notch 147 Property body portion 41 is influenced caused by magnetic interaction of the permanent magnet 63 of rotating block 60 with electromagnet portion 50, can reliably be pressed down The increase of operation voltage needed for the rotation of rotating block 60 processed.

In addition, as long as the configuration of notch 147 is by the movable area 48 of the first end 641 of the first iron plate 64, the first iron The movable area 48 of the second end 642 of piece 64, the second iron plate 65 first end 651 movable area 48 and the second iron plate At least any portion of the part of the lid 12 for the shell 10 that the movable area 48 of 65 the second end 652 covers.

As long as in addition, exposed division 42 with by the iron plate 64 of the magnetic yoke 51,52 in electromagnet portion 50 and rotating block 60, iron plate 65 it Between gap S1, S2, S3, S4 covering shell 10 lid 12 part at least in the external mode exposed of electromagnetic relay 1 Composition.

For example, by the gap between the iron plate 64 of the magnetic yoke 51,52 and rotating block 60 that cover electromagnet portion 50, iron plate 65 The part of the lid 12 of the shell 10 of S1, S2, S3, S4 is set as first part, will cover the portion of the lid 12 of the shell 10 of magnetic yoke 51,52 It is divided into second part, the part of the lid 12 for the shell 10 for covering the entire movable area 48 of iron plate 64,65 is set as third portion Point, the part of the lid 12 for the shell 10 for covering the movable area of moving contact 33 is set as Part IV, fixed contact will be covered The part of the lid 12 of 21 shell 10 is set as Part V.In this case, exposed division 42 also can be with first part and third Part is constituted in the external mode exposed of electromagnetic relay 1, can also be existed with first part and Part IV and Part V The external mode exposed of electromagnetic relay 1 is constituted.

Magnetic shielding part 40 is not limited to be set to the upper surface of the lid 12 of shell 10 (that is, the phase in 10 short transverse of shell Pair face a side) the case where.For example, as shown in fig. 7, can also be in 10 short transverse of shell (that is, up and down direction of Fig. 7) Magnetic shielding part 40 is respectively set in opposite two sides.Thereby, it is possible to more reliably reduce external magnetic field to the storage in shell 10 The influence in portion 13.

In addition, as shown in figure 8, a pair that can also be opposite in the short transverse (that is, up and down direction of Fig. 8) of shell 10 Magnetic shielding part 40 is respectively arranged in opposite face (that is, upper surface and bottom surface), and opposite in the short transverse of shell 10 One of a pair of of opposite face orthogonal (that is, intersection) face (that is, side) setting auxiliary magnetic shielding part 140.Assist magnetic screen portion Part 140 configure shell 10 longitudinal direction second sidewall 112 (shown in Fig. 2) side, and have make cover the first magnetic yoke 51 And second magnetic yoke 52 shell the second sidewall 112 of matrix 11 and the part of lid 12 expose in the external of electromagnetic relay 1 Exposed division 142.

In addition, as shown in figure 9, a pair that can also be opposite in the short transverse (that is, up and down direction of Fig. 9) of shell 10 Magnetic shielding part 40 is respectively set in opposite face (that is, upper surface and bottom surface), opposite in the short transverse of shell 10 one One of orthogonal to opposite face (that is, intersection) face (that is, side) setting the first auxiliary magnetic shielding part 140, and be equipped with Opposite face (that is, side) setting the second auxiliary magnetic shielding part 240 in the face of first auxiliary magnetic shielding part 140.Second auxiliary The side the first side wall 111 (shown in Fig. 2) for the longitudinal direction that magnetic shielding part 240 configured in shell 10, and having keeps covering movable The part of the lid 12 of the shell 10 of the part and covering fixed contact 21 of the lid 12 of the shell 10 of the movable area of contact 33 is in electricity The external exposed division 242 exposed of magnetic relay 1.

In this way, auxiliary magnetic shielding part is arranged by at least one party in the face that a pair of of opposite face with shell 10 intersects 140,240, it can more reliably reduce the inflow of incorporating section 13 of the external magnetic field into shell 10.In addition, as shown in figure 8, logical The magnetic shielding part 40 and auxiliary magnetic at least 3 faces (that is, one of upper surface, bottom surface and side) of shell 10 will be respectively arranged at by crossing Shield member 140 is wholely set, and magnetic shielding part 40 and auxiliary magnetic shielding part 140 become easy to the installation of shell 10, separately Outside, magnetic shielding part 40 and auxiliary magnetic shielding part 140 can be fixed on shell 10 without using bonding agent etc..

In addition, magnetic shielding part 40 and auxiliary magnetic shielding part 140,240 can be according to the designs of electromagnetic relay 1, benefit It is constituted with arbitrary material.For example, it is also possible to which the plate (or film) using the metal (for example, iron) with ferromagnetic body is constituted.

In addition, magnetic shielding part 40 and auxiliary magnetic shielding part 140,240 can be arranged according to the design of electromagnetic relay 1 In the arbitrary face of shell 10.For example, it is also possible to a side (such as the upper table of a pair of of opposite face opposite in 10 short transverse of shell Face) setting magnetic shielding part 40, and in the face (that is, side) that a pair of of the opposite face opposite in 10 short transverse of shell intersects One of setting auxiliary magnetic shielding part 140.

The magnetic shielding part 40 and auxiliary magnetic shielding part 140,240 for being set to each face of shell 10 can connect, can also With mutually indepedent.

As long as nonmagnetic material portion is constituted in a manner of without flow through external magnetic field, it is not limited to exposed division 42.For example, can also Electromagnet portion 50 will be covered using the component being made of resin or (or being not easily susceptible to) metal that will not be affected by magnetic fields Magnetic yoke 51,52 and the iron plate 64 of rotating block 60, iron plate 65 between gap S1, S2, S3, S4 shell 10 lid 12 part Covering.

The applicable electromagnetic relay of the present invention is not limited to the electromagnetic relay 1 of above embodiment, such as can also be with Moving contact and fixed contact are constituted along the extending direction contact of the rotation axis 62 of rotating block 60 or isolated mode.

More than, various embodiments of the invention have been explained in detail with reference to the accompanying drawings, finally, to various aspects of the present invention into Row explanation.In addition, in the following description, as an example, also addition reference marker is recorded.

The electromagnetic relay 1 of first aspect present invention has:

The insulating properties shell 10 of box-shaped has incorporating section 13 in inside；

The fixed contact side terminal 20 of plate is fixed on above-mentioned shell 10, extends to from the outside of above-mentioned shell 10 Incorporating section 13 is stated, and there is the fixed contact 21 positioned at above-mentioned incorporating section 13；

The moving contact side terminal 30 of plate is fixed on above-mentioned shell 10, extends to from the outside of above-mentioned shell 10 It states incorporating section 13 and is configured at above-mentioned shell 10 side by side with above-mentioned fixed contact side terminal 20；

Mobile contact piece 32 is configured at above-mentioned incorporating section 13 and is electrically connected with above-mentioned moving contact side terminal 30, and With the moving contact 33 opposite with above-mentioned fixed contact 21, above-mentioned 33 flexible deformation of moving contact, can be touched with above-mentioned fixation 21 contact of point and separation；

Electromagnet portion 50 is configured at above-mentioned incorporating section 13 and can be supplied to the electric current in different directions；

Rotating block 60 is configured at above-mentioned incorporating section 13, along the side according to the electric current supplied to above-mentioned electromagnet portion 50 The different direction to difference is rotated relative to above-mentioned shell 10 around rotation axis 62；

Movable member 70, it is mobile according to the rotation direction of above-mentioned rotating block 60 and make above-mentioned moving contact 33 relative to upper State the contact of fixed contact 21 or separation；

Magnetic shielding part 40 is set to a pair of of the opposite face orthogonal with above-mentioned rotation axis 62 of above-mentioned shell 10 at least One side,

Above-mentioned electromagnet portion 50 has the first magnetic yoke 51 and the second magnetic yoke 52, first magnetic yoke 51 and the configuration of the second magnetic yoke 52 Between above-mentioned mobile contact piece 32 and above-mentioned electromagnet portion 50, and front end face is mutually opposite and has between above-mentioned front end face Rotating block configuration space 54 configured with above-mentioned rotating block,

Above-mentioned rotating block 60 includes

First iron plate 64, with first end 641 to above-mentioned first magnetic yoke, 51 side prominent and the second end 642 to above-mentioned The side that two magnetic yokes, 52 side mode outstanding configured in above-mentioned rotating block 60；

Second iron plate 65, with first end 651 to above-mentioned first magnetic yoke, 51 side prominent and the second end 652 to above-mentioned Two magnetic yokes, 52 side mode outstanding is configured at the other side of above-mentioned rotating block 60；

Permanent magnet 63 is set between above-mentioned first iron plate 64 and above-mentioned second iron plate 65,

When above-mentioned moving contact 33 leaves above-mentioned fixed contact 21, in the above-mentioned first end of above-mentioned first iron plate 64 There is the first gap S1 between 641 and above-mentioned first magnetic yoke 51, when above-mentioned moving contact 33 is contacted with above-mentioned fixed contact 21, Between the above-mentioned the second end 642 and above-mentioned second magnetic yoke 52 of above-mentioned first iron plate 64 have the second gap S2, it is above-mentioned can When movable contact 33 and above-mentioned fixed contact 21 contact, in the above-mentioned first end 651 and above-mentioned first magnetic of above-mentioned second iron plate 65 There is third space S3, when above-mentioned moving contact 33 leaves above-mentioned fixed contact 21, in above-mentioned second iron plate 65 between yoke 51 Above-mentioned the second end 652 and above-mentioned second magnetic yoke 52 between have the 4th gap S4,

Above-mentioned magnetic shielding part 40 has magnetic substance portion 41 and nonmagnetic material portion 42,142,242,

Above-mentioned nonmagnetic material portion 42,142,242 configuration is on the extending direction of above-mentioned rotation axis 62, above-mentioned shell 10 covers Cover at least part for stating the part at least any gap in the first~the 4th gap 42,142,242.

According to the electromagnetic relay 1 of first aspect, has and be set to the orthogonal with the rotation axis 62 of rotating block 60 of shell 10 A pair of of opposite face at least one party magnetic shielding part 40.Thereby, it is possible to reduce external magnetic field to the incorporating section in shell 10 13 influence.

In addition, magnetic shielding part 40 have magnetic substance portion 41 and nonmagnetic material portion 42,142,242, nonmagnetic material portion 42, 142,242 configurations are easy affected part and cover electromagnet portion due to the external magnetic field flowed through in magnetic substance portion 41 At least part of the part of the shell 10 of gap S1~S4 between 50 magnetic yoke 51,52 and the iron plate 64,65 of rotating block 60. As a result, compared with the electromagnetic relay for the magnetic shielding part for having not set nonmagnetic material portion, the magnetic in electromagnet portion 50 can be made Magnetic substance portion 41 of the gap S1~S4 far from magnetic shielding part 40 between yoke 51,52 and the iron plate 64,65 of rotating block 60.By This, the magnetic substance portion 41 that can reduce magnetic shielding part 40 is mutual to the permanent magnet 63 of rotating block 60 and the magnetic in electromagnet portion 50 It is influenced caused by effect, the increase of operation voltage needed for being able to suppress the rotation of rotating block 60.

In the electromagnetic relay 1 of second aspect of the present invention, above-mentioned nonmagnetic material portion 42,142,242 is also disposed at above-mentioned Part on the extending direction of rotation axis 62, near at least the above front end face of above-mentioned first magnetic yoke 51 of covering of above-mentioned shell 10 At least part or above-mentioned shell 10 above-mentioned second magnetic yoke 52 of covering at least the above front end face near part at least At least part of part near at least the above front end face of above-mentioned first magnetic yoke 51 of the covering of a part or above-mentioned shell 10 And at least part of the part near at least the above front end face of above-mentioned second magnetic yoke 52 of covering.

According to the electromagnetic relay 1 of second aspect, the magnetic substance portion 41 of magnetic shielding part 40 can be further decreased to turning It is influenced caused by magnetic interaction of the permanent magnet 63 of motion block 60 with electromagnet portion 50, can more reliably inhibit rotating block 60 Rotation needed for operation voltage increase.

In the electromagnetic relay 1 of third aspect present invention, the above-mentioned configuration of nonmagnetic material portion 42,142,242 is at above-mentioned turn On the extending direction of moving axis 62, the above-mentioned first end 641 and above-mentioned second of above-mentioned first iron plate 64 of covering of above-mentioned shell 10 The part of the entire movable area 48 of at least either end of end 642 or above-mentioned second iron plate 65 of the covering of above-mentioned shell 10 Above-mentioned first end 651 and above-mentioned the second end 652 at least either end entire movable area 48 part or above-mentioned At least either end of the above-mentioned first end 641 and above-mentioned the second end 642 of above-mentioned first iron plate 64 of covering of shell 10 The part of entire movable area 48 and the above-mentioned first end 651 of above-mentioned second iron plate 65 of covering and above-mentioned the second end 652 At least part of the entire movable area 48 of either end.

According to the electromagnetic relay 1 of the third aspect, the magnetic substance portion 41 of magnetic shielding part 40 can be further decreased to turning It is influenced caused by magnetic interaction of the permanent magnet 63 of motion block 60 with electromagnet portion 50, and can more reliably inhibit rotating block The increase of operation voltage needed for 60 rotation.

In the electromagnetic relay 1 of fourth aspect present invention, above-mentioned magnetic shielding part 40 is separately positioned on above-mentioned shell 10 Above-mentioned a pair of of opposite face.

According to the electromagnetic relay 1 of fourth aspect, external magnetic field can be more reliably reduced relative to the receipts in shell 10 Receive the influence in portion 13.

In the electromagnetic relay 1 of fifth aspect present invention, has and be set to above-mentioned a pair of above-mentioned shell 10 relatively The auxiliary magnetic shielding part 140,240 of at least one side in the face that face intersects.

According to the electromagnetic relay 1 of the 5th aspect, external magnetic field can be more reliably reduced to the incorporating section in shell 10 13 influence.

In the intelligence instrument of sixth aspect present invention, has the electromagnetic relay 1 of above-mentioned aspect.

According to the intelligence instrument of the 6th aspect, the dynamic of rotating block 60 is able to suppress using the electromagnetic relay 1 of above-mentioned aspect Make the increase of voltage, and can reduce the influence of external magnetic field.As a result, it is possible to higher precision measure electric power.

In addition, by the arbitrary embodiment or variation in appropriately combined above-mentioned various embodiment or variations, It can be realized the effect respectively having.In addition, embodiment combination with one another or embodiment combination with one another or implementation can be carried out The combination of mode and embodiment, and the feature combination with one another in different embodiment or embodiment can also be carried out.

The present invention abouts preferred embodiment while referring to attached drawing and has carried out abundant record, but for this field skill For art personnel, various modifications and amendment are obvious.It is interpreted as this deformation and amendment is wanted without departing from right The protection scope asked, then be contained therein.

Industrial availability

Electromagnetic relay of the invention can be suitable for such as intelligence instrument.

Claims (6)

1. a kind of electromagnetic relay, wherein have:

The insulating properties shell of box-shaped has incorporating section in inside；

The fixed contact side terminal of plate, is fixed on the shell, extends to the incorporating section from the outside of the shell, and And there is the fixed contact for being located at the incorporating section；

The moving contact side terminal of plate, is fixed on the shell, from the outside of the shell extend to the incorporating section and It is configured at the shell side by side with the fixed contact side terminal；

Mobile contact piece is configured at the incorporating section and is electrically connected with the moving contact side terminal, and have with it is described The opposite moving contact of fixed contact, the moving contact flexible deformation, can contact and separate with the fixed contact；

Electromagnet portion is configured at the incorporating section and can be supplied to the electric current of different directions；

Rotating block is configured at the incorporating section, along different and each according to the sense of current supplied to the electromagnet portion Different direction is rotated relative to the shell around rotation axis；

Movable member, it is mobile according to the rotation direction of the rotating block, make the moving contact relative to the fixed contact Contact or separation；

Magnetic shielding part is set at least one party of a pair of of opposite face of the shell, a pair of opposite face and the rotation Axis is orthogonal,

The electromagnet portion has the first magnetic yoke and the second magnetic yoke, and first magnetic yoke and the configuration of the second magnetic yoke are in the mobile contact Between piece and the electromagnet portion, and front end face is mutually opposite and has between the front end face configured with the rotating block Rotating block configuration space,

The rotating block includes

First iron plate, with first end, to first magnetic yoke side, prominent and the second end is outstanding to second magnetic yoke side Mode is configured at the side of the rotating block；

Second iron plate, with first end, to first magnetic yoke side, prominent and the second end is outstanding to second magnetic yoke side Mode is configured at the other side of the rotating block；

Permanent magnet is set between first iron plate and second iron plate,

When the moving contact leaves the fixed contact, in the first end and first magnetic of first iron plate There is the first gap, when the moving contact and the fixed contact contact, described the of first iron plate between yoke There is the second gap, when the moving contact and the fixed contact contact, in institute between two ends and second magnetic yoke Stating has third space between the first end of the second iron plate and first magnetic yoke, leave in the moving contact described When fixed contact, there is the 4th gap between the second end and second magnetic yoke of second iron plate,

The magnetic shielding part has magnetic substance portion and nonmagnetic material portion,

The nonmagnetic material portion configuration is on the extending direction of the rotation axis, between the covering of the shell the described first~the 4th At least part of the part at least any gap of gap.

2. electromagnetic relay as described in claim 1, wherein

The nonmagnetic material portion is also disposed on the extending direction of the rotation axis, covering first magnetic yoke of the shell The covering of at least part of the part near at least described front end face or the shell second magnetic yoke it is at least described before Near at least described front end face of the covering of at least part of the part near end face or the shell first magnetic yoke At least part of part near at least described front end face of partial at least part and covering second magnetic yoke.

3. electromagnetic relay as claimed in claim 1 or 2, wherein

The nonmagnetic material portion configuration is on the extending direction of the rotation axis, the institute of covering first iron plate of the shell State the part of the entire movable area of at least either end of first end and the second end or the covering institute of the shell State part or the institute of the entire movable area of the first end of the second iron plate and at least either end of the second end State the entire movable of the first end of covering first iron plate of shell and at least either end of the second end At least either end of the first end and the second end of the part in region and covering second iron plate it is entire The part of movable area.

4. electromagnetic relay according to any one of claims 1 to 3, wherein

The magnetic shielding part is separately positioned on the pair of opposite face of the shell.

5. electromagnetic relay as described in any one of claims 1 to 4, wherein

Auxiliary magnetic shielding part at least one side that the face intersected with the pair of opposite face of the shell is arranged in.

6. a kind of intelligence instrument has electromagnetic relay according to any one of claims 1 to 5.