CN102280314B

CN102280314B - Relay

Info

Publication number: CN102280314B
Application number: CN201110205861.XA
Authority: CN
Inventors: 柚场誉嗣; 高野哲; 佐宗裕文
Original assignee: Fujitsu Component Ltd
Current assignee: Fujitsu Component Ltd
Priority date: 2007-09-14
Filing date: 2008-06-23
Publication date: 2014-07-09
Anticipated expiration: 2028-06-23
Also published as: CN102306572B; DE602008003394D1; CN102306573A; KR100987749B1; CN102306573B; CN101388303A; CN102280313B; DE602008003078D1; TW200912983A; CN101388303B; TWI400737B; CN102280314A; KR20090028396A; CN102280313A; JP5202072B2; JP2009087918A; CN102306572A

Abstract

A relay is disclosed that includes a first opening and closing part including an openable and closable first gap; a second opening and closing part including an openable and closable second gap, the second opening and closing part being placed side by side with the first opening and closing part so that the first gap and the second gap are arranged side by side; a magnetization driving part configured to cause the first opening and closing part and the second opening and closing part to simultaneously operate; and a permanent magnet configured to apply a magnetic field on the first gap of the first opening and closing part and the second gap of the second opening and closing part in the same direction.

Description

Relay

The application is the divisional application of the patent application that the application number of on June 23rd, 2008 application is 200810128681.4, denomination of invention is " relay ".

Technical field

The present invention relates to relay, more specifically, the present invention relates to direct current high voltage control relay, it can be used in the circuit that must block high voltage direct current.

Background technology

In some circuit, the electric current of flowing through is the direct current of high pressure, these circuit are for example the circuit in circuit and the uninterrupted power supply (UPS) of battery circumferential in electric motor car, wherein, in the time of the civilian power interruptions to computer system power supply, UPS is activated and to computer system power supply.

By relay application in these circuit in the situation that, in the time that the one-tenth docking point being in contact with one another of relay is separated from each other, owing to acting on high voltage on relay, so will there be arc current to flow through between contact, this arc current can damage contact, thereby has shortened the available work life-span of relay.

The unit of the high voltage direct current circuit of disconnection and closed UPS comprises the assembly of relay and semiconductor switch.Semiconductor switch has reduced the current value of relay of flowing through, thereby has prevented between the contact of relay, producing electric arc in the time of open circuit.

But, according to above-mentioned structural design, except relay, also need to arrange semiconductor switch, thereby increased the number of parts.In reliability direction, this is a problem, in addition, has also increased cost.

Published 2001-176370 Japanese Patent Application Publication a kind of relay being applied in battery of electric vehicle peripheral circuit.According to the design of this relay, be provided with permanent magnet near of contact, thereby, can utilize the magnetic force of permanent magnet to carry out the arc current producing when deflection contact separates, can prevent that thus contact is damaged, and then improve the durability of relay.In addition, according to the design of this relay, one docking point group arranged abreast, and the arc current producing between the arc current producing between a contact group therein and another contact group is all by outside deflection, with this make two arc currents be mutually away from.

But this relay is arranged on the centre of interconnection circuit, this interconnection circuit for example, by an electrode of DC power supply-anodal and load circuit couples together, and two above-mentioned contact groups are connected in parallel in interconnection circuit.

Thereby even when two contacts of relay are when being disconnected, the negative pole of DC power supply still keeps being connected with load circuit, thereby DC power supply and load circuit are fully not separate.Result is exactly to exist such risk: carry continuously electric current-especially in the unsettled situation of earth potential to load circuit.

In addition, above-mentioned relay belongs to terminals connecting-type, and its size is large.In addition, above-mentioned relay is not designed to can be installed on printed circuit board (PCB).

Published 10-326553 Japanese Patent Application Publication a kind of relay, it has a docking point group and is arranged on into the permanent magnet between docking point group, and this relay is designed to can be installed on printed circuit board (PCB).But the electric arc producing at each contact group place can not be blown out laterally, can not be simultaneously severed respectively from DC power anode and the extended interconnection circuit of negative pole.

Summary of the invention

Various execution mode of the present invention can solve or alleviate above-mentioned one or more problems.

According to one embodiment of the present invention, the application provides a kind of relay, and in this relay, above-mentioned one or more problems can be solved or alleviate.

According to one embodiment of the present invention, the application provides a kind of relay, and it comprises: the first opening and closing member, and it has and can separate and closeable the first gap; The second opening and closing member, it has and can separate and closeable the second gap, and described the second opening and closing member is arranged to the first opening and closing member side-by-side, so that the first gap and the second gap are arranged abreast; Excitation driver part, it is configured to impel the first opening and closing member and the second opening and closing member side by side to move; And permanent magnet, it is configured to identical direction to the first gap of the first opening and closing member and the second gap of the second opening and closing member applies magnetic field.

According to one embodiment of the present invention, the application provides a kind of relay, it comprises: the first relay main body, it comprises the first opening and closing member and the first excitation driver part, the first excitation driver part is configured to impel the first opening and closing member work, the first opening and closing member comprises the first travelling contact and the first fixed contact, two contacts across the first gap mutually facing to, thereby the removable state for being in contact with one another and mutually disengaging, the first opening and closing member also comprises the first fluid spring terminal with described the first travelling contact, and there is the first fixing spring terminal of described the first fixed contact, the second relay main body, it comprises the second opening and closing member and the second excitation driver part, the second excitation driver part is configured to impel the second opening and closing member work, the second opening and closing member comprises the second travelling contact and the second fixed contact, these two contacts across the second gap mutually facing to, thereby the removable state for being in contact with one another and mutually disengaging, the second opening and closing member also comprises the second fluid spring terminal with described the second travelling contact and the second fixing spring terminal with described the second fixed contact, housing, it comprises side plate parts and top board parts, and is hiding the first relay main body and the second relay main body, and first permanent magnet and the second permanent magnet, they are fixed on the top board parts of housing, so that respectively facing to the first gap and the second gap, the first permanent magnet and the second permanent magnet are oriented to the identical magnetic pole having facing to the first gap and the second gap.

According to one embodiment of the present invention, the application provides a kind of relay, it comprises: the first relay main body, it comprises the first opening and closing member and the first excitation driver part, the first excitation driver part is configured to impel the first opening and closing member work, the first opening and closing member comprises the first travelling contact and the first fixed contact, these two contacts across the first gap mutually facing to, thereby the removable state for being in contact with one another and mutually disengaging, the first opening and closing member also comprises the second travelling contact and the second fixed contact, these two contacts across the second gap mutually facing to, thereby the removable state for being in contact with one another and mutually disengaging, the first opening and closing member also comprises the first fixing spring terminal with described the first fixed contact, there is the second fixing spring terminal of described the second fixed contact, and there is the first movable elastic component of described the first travelling contact and the second travelling contact, the first movable elastic component strides across the first fixing spring terminal and the second fixing spring terminal extends, the second relay main body, it comprises the second opening and closing member and the second excitation driver part, the second excitation driver part is configured to impel the second opening and closing member work, the second opening and closing member comprises the 3rd travelling contact and the 3rd fixed contact, these two contacts across third space mutually facing to, thereby the removable state for being in contact with one another and mutually disengaging, the second opening and closing member also comprises the 4th travelling contact and the 4th fixed contact, these two contacts across the 4th gap mutually facing to, thereby the removable state for being in contact with one another and mutually disengaging, the second opening and closing member also comprises the 3rd fixing spring terminal with described the 3rd fixed contact, there is the 4th fixing spring terminal of described the 4th fixed contact, and there is the second movable elastic component of described the 3rd travelling contact and the 4th travelling contact, the second movable elastic component strides across the 3rd fixing spring terminal and the 4th fixing spring terminal extends, housing, it comprises side plate parts and top board parts, and is hiding the first relay main body and the second relay main body, and first permanent magnet and the second permanent magnet, they are fixed on the top board parts of housing, to make the first permanent magnet facing to the first gap and the second gap, and making the second permanent magnet facing to third space and the 4th gap, the first permanent magnet and the second permanent magnet are oriented to the identical magnetic pole having facing to the first to the 4th gap.

According to one embodiment of the present invention, the application provides a kind of relay, it comprises: the first opening and closing member, these parts comprise the first travelling contact and the first fixed contact, these two contacts across the first gap mutually facing to, so that can move to the state that is in contact with one another and is separated from each other, the first opening and closing member also comprises the second travelling contact and the second fixed contact, these two contacts across the second gap mutually facing to, so that can move to the state that is in contact with one another and is separated from each other, the first opening and closing member also comprises the first fixing spring terminal with described the first fixed contact and the second fixing spring terminal with described the second fixed contact, and comprise the first movable elastic component with the first travelling contact and the second travelling contact, the first movable elastic component strides across the first fixing spring terminal and the second fixing spring terminal extends, the second opening and closing member, it comprises the 3rd travelling contact and the 3rd fixed contact, these two contacts across third space mutually facing to, so that can move to the state that is in contact with one another and is separated from each other, the second opening and closing member also comprises the 4th travelling contact and the 4th fixed contact, these two contacts across the 4th gap mutually facing to, so that can move to the state that is in contact with one another and is separated from each other, the second opening and closing member also comprises the 3rd fixing spring terminal with described the 3rd fixed contact and the 4th fixing spring terminal with described the 4th fixed contact, and comprise the second movable elastic component with the 3rd travelling contact and the 4th travelling contact, the second movable elastic component strides across the 3rd fixing spring terminal and the 4th fixing spring terminal extends, single excitation driver part, it is configured to impel the first opening and closing member and the second opening and closing member work, housing, it comprises side plate parts and top board parts, and is hiding the first opening and closing member, the second opening and closing member and excitation driver part, and first permanent magnet and the second permanent magnet, they are fixed on the top board parts of housing, to make the first permanent magnet facing to the first gap and the second gap, and making the second permanent magnet facing to third space and the 4th gap, the first permanent magnet and the second permanent magnet are oriented to the identical magnetic pole having facing to the first to the 4th gap.

According to an aspect of the present invention, be provided with permanent magnet, thereby can on the gap (the second gap) of the gap of the first opening and closing member (the first gap) and the second opening and closing member, apply the magnetic field of equidirectional.Thereby, by the first opening and closing member being set and in the centre of the second interconnection circuit that is connected DC power cathode and load, the second opening and closing member being set with the centre of the first interconnection circuit of load at connection DC power anode, just can utilize single relay to cut off the first interconnection circuit and the second interconnection circuit simultaneously.

In addition, owing to all outwards being blown out and extinguishing at the electric arc of the first gap and the generation of the second gap location, so, can prevent the first opening and closing member and the second opening and closing member to cause damage.Result is exactly, even through after off-on operation repeatedly, the performance of relay also there will not be any decline, thereby relay can be competent at very long available labour time.

In addition, in the time that relay is installed on printed circuit board (PCB), without the interconnection circuit of crossing on this printed circuit board (PCB).Thereby, can only utilize the one-sided interconnection circuit that forms of printed circuit board (PCB).

Accompanying drawing explanation

From detailed description considered in conjunction with the accompanying drawings below, can more clearly realize that other object of the present invention, feature and advantage, in the accompanying drawings:

Schematic diagram in Fig. 1 has represented the structural principle according to relay of the present invention;

Schematic diagram in Fig. 2 has represented the circuit arrangement with good grounds relay of the present invention;

Schematic diagram in Fig. 3 has represented the another kind of structural principle according to relay of the present invention;

Perspective representation in Fig. 4 according to the relay of first embodiment of the invention, this view is observed and is made through housing;

Fig. 5 A to Fig. 5 D be respectively shown in Fig. 4, according to the top plan view of the relay of first embodiment of the invention, X2 sectional view, Y2 sectional view and upward view;

Graphical presentation in Fig. 6 utilize the failure of current effect that realizes according to the relay of first embodiment of the invention;

Fig. 7 represented according to first embodiment of the invention, permanent magnet is fixed to the another kind of structure on housing;

Fig. 8 A is respectively according to the X2 sectional view of the relay of second embodiment of the invention, Y2 sectional view and upward view to Fig. 8 C;

Perspective representation in Fig. 9 according to the main body of the relay of second embodiment of the invention;

Schematic diagram in Figure 10 has represented the relay according to third embodiment of the invention;

Perspective representation in Figure 11 according to the relay of third embodiment of the invention, this view is observed and is made through housing;

Figure 12 A to Figure 12 D be respectively shown in Figure 11, according to the top plan view of the relay of third embodiment of the invention, X2 sectional view, Y2 sectional view and upward view;

Schematic diagram in Figure 13 has represented the relay according to four embodiment of the invention;

Schematic diagram in Figure 14 has represented the relay according to fifth embodiment of the invention;

Perspective representation in Figure 15 according to the relay of sixth embodiment of the invention, this view is observed and is made through housing;

Figure 16 A has represented according to the figure of the position relationship between the first and second permanent magnet blocks parts of the 6th execution mode of the present invention and the first and second gaps to Figure 16 B;

Perspective representation in Figure 17 according to the relay of seventh embodiment of the invention the state when without housing, in this view, permanent magnet blocks part is expressed as transparent;

Figure 18 A to Figure 18 C be respectively shown in Figure 17, according to the X2 sectional view of the relay of seventh embodiment of the invention, Y2 sectional view and upward view;

Schematic diagram in Figure 19 has represented being connected according to the relay of seventh embodiment of the invention and this relay and DC power supply and load circuit;

Figure 20 A has represented the electric arc producing at gap location, the graphical presentation in Figure 20 B according to the form of the arc voltage of seventh embodiment of the invention;

Perspective representation in Figure 21 according to eighth embodiment of the invention, without the relay of housing, in figure, permanent magnet blocks part is expressed as transparent;

Perspective representation in Figure 22 according to ninth embodiment of the invention, without the relay of housing, in figure, permanent magnet blocks part is expressed as transparent;

Decomposition diagram in Figure 23 has represented the relay according to tenth embodiment of the invention; And

Figure 24 is the Y2 sectional view according to the relay of tenth embodiment of the invention.

Embodiment

Accompanying drawing below with reference to embodiment of the present invention is described.

[principle of high direct voltage control relay]

Paper is according to the principle of high direct voltage control relay of the present invention.

Schematic diagram in Fig. 1 has represented the structural principle according to relay of the present invention.Schematic diagram in Fig. 2 has represented the circuit arrangement with this relay.

Referring to Fig. 1 and Fig. 2, relay 10 comprises: the first opening and closing member 11 being arranged side by side and the second opening and closing member 20; The first permanent magnet blocks part 30, it acts on the first opening and closing member 11; And the second permanent magnet blocks part 40, it acts on the second opening and closing member 20.

In the accompanying drawings, what X1-X2 line referred to is the arranged direction of the first opening and closing member 11 and the second opening and closing member 20, what Y1-Y2 line referred to is travelling contact and the opposed facing direction of fixed contact on first, second opening and closing member 11 and 20, and what Z1-Z2 referred to is the length direction of first, second opening and closing member 11 and 20 upper spring terminals.

The first opening and closing member 11 comprises the first fixing spring terminal 13 and the first fluid spring terminal 15 with the first travelling contact 14 with the first fixed contact 12.Between the first fixed contact 12 and the first travelling contact 14, exist the first gap 17.The direction in the first gap 17 is the direction of Y1-Y2.

The second opening and closing member 20 comprises the second fixing spring terminal 23 and the second fluid spring terminal 25 with the second travelling contact 24 with the second fixed contact 22.Between the second fixed contact 22 and the second travelling contact 24, exist the second gap 27.The direction in the second gap 27 is the direction of Y1-Y2.

Be arranged to facing to first, second opening and closing member 11 and 20 as the magnet exciting coil 16 of excitation driver part.In Fig. 2, represent for the ease of diagram, magnet exciting coil 16 is expressed as to the Y2 side in opening and closing member 11 and 20.Figure 13 and Figure 14 also belong to same situation.

Referring to (b) part in Fig. 1, be disposed in the Z1 side of the first opening and closing member 11 as the first permanent magnet blocks part 30 of arc suppressor or arc arrester, and its N utmost point is in Z2 side, the S utmost point is in Z1 side, this piece part has enough strong magnetic force, thereby can in the first gap 17, apply the high-intensity magnetic field 53 of Z2 direction.

Referring to (d) part in Fig. 1, identical with the first permanent magnet blocks part 30, be disposed in the Z1 side of the second opening and closing member 20 as the second permanent magnet blocks part 40 of arc suppressor or arc arrester, and its N utmost point is in Z2 side, the S utmost point is in Z1 side, this piece part has enough strong magnetic force, thereby can in the second gap 27, apply the high-intensity magnetic field 54 of Z2 direction.

In the drawings, magnetic field 53 and 54 is referred to by the magnetic line of force.The direction (Z2 direction) in the magnetic field 53 and 54 in first, second gap 17 and 27 is perpendicular to the direction (Y1-Y2 direction) in first, second gap 17 and 27.

Relay 10 comprises respectively the terminals 61,62,63 and 64 from the base portion of spring terminal 13,15,23 and 25 along the projection of Z2 direction, and comprise the terminals 120 and 121 that are connected with corresponding end on magnet exciting coil 16, terminals 120 and 121 are along the projection of Z2 direction, thereby can be installed on printed circuit board (PCB).

On terminals 61, indicate that with symbol and/or character or letter these terminals 61 are for being connected with the positive pole of DC power supply.And understand that at terminals 63 subscripts terminals 63 will be connected with the negative pole of DC power supply with symbol and/or character or letter.On terminals 62, indicate that these terminals 62 will be connected with one end of load circuit.Similarly, on terminals 64, indicate that these terminals 64 will be connected with the other end of load circuit.

Adopt the circuit 70 of this relay 10 to comprise: DC power supply 71, its output is up to the voltage of hundreds of volt; Load circuit 72; The first interconnection circuit 73, it couples together the positive pole of DC power supply 71 and load circuit 72; And second interconnection circuit 74, it couples together the negative pole of DC power supply 71 and load circuit 72.Circuit 70 comprises the circuit part 76 that is positioned at the circuit part 75 of DC power supply 71 1 sides and is positioned at load circuit 72 1 sides, and in this circuit 70, the flow direction of electric current is indicated by the arrow in Fig. 1 and Fig. 2.

The first interconnection circuit 73 and the second interconnection circuit 74 are formed in a side of printed circuit board (PCB) 80, and are made into the form of circuit pattern.Referring to Fig. 2, on printed circuit board (PCB) 80, be shaped with two through holes 81 and 82 in the centre of the first interconnection circuit 73, their arrangement is corresponding to two terminals 61 and 62 of the first opening and closing member 11, and, be shaped with two through holes 83 and 84 in the centre of the second interconnection circuit 74, their arrangement is corresponding to two terminals 63 and 64 of the second opening and closing member 20.

The first interconnection circuit 73 comprises the extended circuit pattern 73P of positive pole from DC power supply 71, and the second interconnection circuit 74 comprises the extended circuit pattern 74P of negative pole from DC power supply 71.The first interconnection circuit 73 comprises that, from the load circuit 72 extended circuit pattern 73L in one end, the second interconnection circuit 74 comprises from the extended circuit pattern 74L of load circuit 72 other end.Through hole 81 is formed in the end of circuit pattern 73P, and through hole 83 is formed in the end of circuit pattern 74P, and through hole 82 is formed in the end of circuit pattern 73L, and through hole 84 is formed in the end of circuit pattern 74L.

Terminals 61,62,63 and 64 are respectively inserted in through hole 81,82,83 and 84, and be welded on herein, terminals 120 and 121 are inserted into and are welded in the corresponding through hole of making on printed circuit board (PCB) 80, so just relay 10 is installed on printed circuit board (PCB) 80, and can have used this relay.

Thereby when direct current flows through when magnet exciting coil 16 is energized from magnet exciting coil 16, the first travelling contact 14 will contact with the first fixed contact 12, and the second travelling contact 24 will contact with the second fixed contact 22, so just closed relay 10.Result is exactly, and electric current will flow according to the direction of arrow indication, thereby load circuit 72 is in running order.

In the time stopping powering to magnet exciting coil 16, the first travelling contact 14 moves and departs from and the contacting of the first fixed contact 12, and the second travelling contact 24 moves and departs from and the contacting of the second fixed contact 22.Once the first travelling contact 14 moves and disengages with the first fixed contact 12, will produce electric arc (arc current) at 17 places, the first gap at once, similarly, depart from once the second travelling contact 24 moves and the contacting of the second fixed contact 22, will produce electric arc (arc current) at 27 places, the second gap at once.

With this understanding, apply high-intensity magnetic field 53 by the first permanent magnet blocks part 30 to the first gap 17.Thereby, as shown in (c) part in Fig. 1, according to the Left Hand Rule of Fleming, on electric arc, long-range navigation thatch power (Lorentz) F2 of X2 direction will acted on, thereby make electric arc as 90 indications of mark in figure: from the first gap 17, to be blown along X2 direction deflection, thereby can to extinguish immediately.In addition, because electric arc is blown out, also extinguishes immediately, so the first travelling contact 14 and the first fixed contact 12 can not be subject to any infringement along X2 direction from the first gap 17.

Apply high-intensity magnetic field 54 by the second permanent magnet blocks part 40 to the second gap 27.Thereby, as shown in (e) part in Fig. 1, according to the Left Hand Rule of Fleming, on electric arc, the long-range navigation thatch power F1 of X1 direction will acted on, thereby make electric arc as 91 indications of mark in figure: from the second gap 27, to be blown along X1 direction deflection, thereby can to extinguish immediately.In addition, because electric arc is blown out, also extinguishes immediately, so the second travelling contact 24 and the second fixed contact 22 can not be subject to any infringement along X1 direction from the second gap 27.

When the first travelling contact 14 moves apart the first fixed contact 12 and disengages with it and in the time that the second travelling contact 24 moves apart the second fixed contact 22 and disengages with it, the first interconnection circuit 73 and the part place of the second interconnection circuit 74 in relay 10 are disconnected simultaneously, thereby, in electric current 70, the circuit part 75 that is positioned at DC power supply 71 1 sides is separated with the circuit part 76 that is positioned at load circuit 72 1 sides, has realized thus mutually completely independent.Result is exactly, even if earth potential is unsettled, also can not carry any electric current to load circuit 72.

In addition, because travelling contact 14,24 and fixed contact 12,22 can not be damaged, so, even relay 10 through after repeatedly working, its performance also there will not be decline, thereby relay 10 has the very long available work life-span.

Schematic diagram in Fig. 3 has represented the another kind of structure according to relay of the present invention.

Referring to Fig. 3, the difference of the relay 10 shown in relay 10X and Fig. 1 is: the first permanent magnet blocks part 30X and the second permanent magnet blocks part 40X are oriented to the S utmost point that makes them in Z2 side, and the N utmost point is in Z1 side; Understand that at terminals 61 subscripts these terminals 61 will be connected with the negative pole of power supply; And understand that at terminals 63 subscripts these terminals 63 will be connected with the positive pole of power supply.Applied respectively magnetic field 53X and 54X to the first gap 17 and the second gap 27, the direction in two magnetic fields is all Z1 direction.

The circuit 70X that has been equipped with the relay 10X of this structure is with the difference of the circuit 70 shown in Fig. 1: the terminals of its included DC power supply 71X are directed contrary with the situation of DC power supply 71 shown in Fig. 1.

When direct current make through magnet exciting coil 16 (seeing Fig. 2) magnet exciting coil 16 when electric, mutually facing to contact 12 and 14 and contact 22 and 24 be in contact with one another, thereby by relay 10X closure.Result is exactly that electric current can flow by the direction of arrow indication in Fig. 3, makes load circuit 72 in running order.

In the time stopping powering to magnet exciting coil 16, the first travelling contact 14 moves and departs from and the contacting of the first fixed contact 12, and the second travelling contact 24 moves and departs from and the contacting of the second fixed contact 22.Once the first travelling contact 14 moves and disengages with the first fixed contact 12, will produce electric arc (arc current) at 17 places, the first gap at once, similarly, once the second travelling contact 24 moves apart the second fixed contact 22 and disengages, will produce electric arc (arc current) at 27 places, the second gap at once.

Under this condition, apply high-intensity magnetic field 53X by the first permanent magnet blocks part 30X to the first gap 17.Thereby, as shown in (c) part in Fig. 3, according to the Left Hand Rule of Fleming, on electric arc, the long-range navigation thatch power F2 of X2 direction will acted on, thereby make electric arc as 90 indications of mark in figure: to be blown from the first gap 17 along X2 direction deflection, thereby can to extinguish immediately.

Apply high-intensity magnetic field 54X by the second permanent magnet blocks part 40X to the second gap 27.Thereby, as shown in (e) part in Fig. 3, according to the Left Hand Rule of Fleming, on electric arc, the long-range navigation thatch power F1 of X1 direction will acted on, thereby make electric arc as 91 indications of mark in figure: from the second gap 27, to be blown along X1 direction deflection, thereby can to extinguish immediately.

[the first execution mode]

Perspective representation in Fig. 4 according to the small size high direct voltage control relay 10A of first embodiment of the invention, this view is observed and is made relay 10A through housing 110.

Fig. 5 A is respectively top plan view (Z1 side), X2 sectional view, the Y2 sectional view of the 10A of relay shown in Fig. 4 to Fig. 5 D; And upward view (Z2 side).In these accompanying drawings, carry out the element that in mark and Fig. 1, elements relative is answered with identical number designation, and omit the description to these elements.

Relay 10A is the form of implementation of the relay 10 of the structure of principle shown in Fig. 1.Relay 10A has: the first opening and closing member 11 and the second opening and closing member 20, and in the Y2 of base portion 100 side, two opening and closing members lay respectively at X2 and X1 side; Yoke 102, it is arranged in the middle of base portion 100 according to vertical (uprightly) attitude; Be arranged on armature 103 and the plug-in unit 104 of base portion 100 middles; And magnet exciting coil 105, it is installed in the Y1 side of base portion 100, and is fixed on here.Relay 10A by housing 110 shades, and housing is rectangular shape.As below introduced, stretch out some terminals from the bottom surface of base portion 100.The width of relay 10A be W, length be L, highly for H.Magnet exciting coil unit 105, yoke 102, armature 103 and plug-in unit 104 have formed excitation driver part.Width W, length L and height H are all about 20mm to 30mm.Relay 10A is undersized, and its terminals are positioned on (base portion 100) bottom surface, and this relay can be installed to the enterprising enforcement of printed circuit board (PCB) 80 and use.

The first opening and closing member 11 has the first paired fixing spring terminal 13 and the first fluid spring terminal 15, these two terminals be arranged in Y1-Y2 direction mutually facing to.The second opening and closing member 20 has the second paired fixing spring terminal 23 and the second fluid spring terminal 25, these two terminals be arranged in Y1-Y2 direction mutually facing to.

Magnet exciting coil unit 105 has bobbin 107 and is being wound around the magnet exciting coil 16 of bobbin 107.Armature 103 is that letter is L shaped, and it is being supported by yoke 102, and armature 103 has horizontal component, and one end is facing to the electrode of 105 upper ends, magnet exciting coil unit.Armature 103 has vertical component, and the plug-in unit 104 of being made up of insulating resin is connected on this vertical component.The end of plug-in unit 104 opposite sides is connected to each middle interconnecting piece of two fluid spring terminals 15 and 25 and divides.

Housing 110 is to be made up of the heat-resisting material of height, and this material is for example thermosetting resin (for example epoxy resin or phenolic resins).

Housing 110 comprises top board parts 111.Utilize insert molding technique by first, second permanent magnet blocks part 30 and 40 on the Y2 sidepiece of top board parts 111 inner surfaces.First, second permanent magnet blocks part 30 and 40 is arranged to: in the time that housing 110 is connected on base portion 110, they lay respectively at the next-door neighbour top (being positioned at the Z1 side in gap) in first, second gap 17 and 27.

First, second permanent magnet blocks part 30 and 40 is samarium-cobalt magnets, its length (size in X1-X2 direction) is about 7mm, width (size in Y1-Y2 direction) is 5mm, thickness (size in Z1-Z2 direction) is at 2mm between 3mm, and this magnet is kicker magnet.First, second permanent magnet blocks part 30 and 40 has following characteristic:

Residual magnetic flux density Br:1.07 is to 1.15 teslas;

Coercive force H _cB: 597 to 756kA/m;

Ceiling capacity product (BH) max:199 is to 247kJ/m ³; And

Coercive force H _cJ: 637 to 1432kA/m.

Than neodium magnet, samarium-cobalt magnet has better thermal endurance, and is not easy to be subject to thermal demagnetization.First, second permanent magnet blocks part 30 and 40 is oriented to and makes their the S utmost point be positioned at Z1 side, and the N utmost point is positioned at Z2 side.

Stretch out along Z2 direction terminals 61,62,63 and 64 bottom surfaces from base portion 100 that stretch out from the base portion of spring terminal 13,15,23 and 25 respectively.In addition, stretch out along Z2 direction terminals 120 and 121 bottom surfaces from base portion 100 that are connected with the corresponding end of magnet exciting coil 16.

Referring to Fig. 5 D, on the bottom surface of base portion 100, for each terminals 61-64 is provided with the indication such as " positive source " etc., the letter in these indications is formed by resin molded.Utilizing indication information " positive source " to indicate terminals 61 will be connected with the positive pole of power supply.Utilizing indication information " power cathode " to indicate terminals 63 will be connected with the negative pole of power supply.Utilizing indication " load " to indicate terminals 62 will be connected with one end of load circuit.And utilizing indication " load " to indicate terminals 64 will be connected with the other end of load circuit.As alternative, also can utilize the indication information being directly printed on housing 110 side plate parts 112 or 113 (referring to Fig. 5 A and Fig. 5 C) surface or on top board parts 111 upper surfaces to indicate these connections, or can indicate by attached label on housing 110, on label, print indication information.

Identical with the situation shown in Fig. 1 and Fig. 2, relay 10A is installed to the enterprising enforcement of printed circuit board (PCB) 80 and uses, it is arranged on the first interconnection circuit 73 and the second interconnection circuit 74, each terminals 61-64 is inserted into and is welded in through hole 81-84, and terminals 120 and 121 are inserted into and are welded in corresponding through hole.As alternative, can adopt L shaped wiring to bring in the terminals 61-64 replacing from the downward straight line projection in bottom surface of base portion 100, thereby, by L shaped terminals being welded on the corresponding pad on printed circuit board (PCB), the form that just relay 10A can be installed with surface is installed on printed circuit board (PCB).

With this understanding, magnet exciting coil 16 does not have any polarity, thereby does not indicate the sense of current in magnet exciting coil 16.Result is exactly to have reduced the restrictive condition of the circuit to driving relay 10A.

When magnet exciting coil 16 not when electric, relay 10A is in Fig. 4 and Fig. 5 A to the state shown in Fig. 5 D, under this state, first, second travelling contact 14 and 24 disengages with first, second fixed contact 12 and 22 respectively.

When direct current is in the time that terminals 120 and 121 flow through from magnet exciting coil 16, magnet exciting coil unit 105 is encouraged, thereby attracts the horizontal component of armature 103, and by its adhesive to magnet exciting coil unit 105.Due to the This move of armature 103, first, second fluid spring terminal 15,25 is squeezed in Y2 direction, makes thus first, second travelling contact 14,24 realize and contacting with first, second fixed contact 12 and 22 respectively.So closed relay 10A.Result is exactly that electric current will flow according to the direction of arrow indication in Fig. 1, thereby makes load circuit 72 carry out work.

In the time stopping powering to magnet exciting coil 16, the first travelling contact 14 moves and departs from and the contacting of the first fixed contact 12, and meanwhile, the second travelling contact 24 moves and departs from and the contacting of the second fixed contact 22, thereby, in the first gap 17 and the second gap 27, will produce electric arc.Travelling contact 14,24 and fixed contact the 12, the 22nd, thin plate-like, their apparent surface is spherical.Thereby electric arc produces between travelling contact 14 He24 centers and fixed contact 12 He22 centers.But as shown in Figure 5A, utilize the magneticaction of the first permanent magnet blocks part 30, will produce long-range navigation thatch power F2 according to the Left Hand Rule of Fleming, electric arc in the first gap 17 is blown along X2 direction deflection as 90 indications of mark in figure, thereby can extinguish rapidly by this long-range navigation thatch power F2; And, utilize the magneticaction of the second permanent magnet blocks part 40, will produce long-range navigation thatch power F1 according to the Left Hand Rule of Fleming, electric arc in the second gap 27 is blown along X1 direction deflection as 91 indications of mark in figure, thereby can extinguish rapidly by this long-range navigation thatch power F1.

Graphical presentation in Fig. 6 be 400VDC, electric current be 10A in the situation that at voltage, waveform when electric current is turned off in circuit.

As shown in the waveform I in Fig. 6, because the electric arc in gap 17,27 is extinguished rapidly, for example, so the electric current of the circuit 70 of flowing through can turn-off-be turn-offed fast in 938 μ s.In addition, prevented to travelling contact 14 and 24 and fixed contact 12 and 22 cause damage, thereby even if passed through repeatedly off-on operation, relay 10A also can have very long working life, and performance does not decline.

As label 90 indications, the electric arc producing in the first gap 17 touches the side plate parts 112 of the housing 110 of X2 side, and as label 91 indications, the electric arc producing in the second gap 27 touches the side plate parts 113 of the housing 110 of X1 side.But, because housing 110 is to make with high heat-resisting material, so the surface, inside of side plate parts 112 and 113 can not be damaged.In addition, the fused mass in electric arc (melted material) can adhere to and deposit on the surface, inside of side plate parts 112 and 113.But because a segment distance A has been left with gap 17,27 respectively in the surface, inside of side plate parts 112,113, this distance is about 2mm to 4mm, thus can not impact first, second opening and closing member 11 and 20, thereby there will not be problem.

If electric arc is not deflected, electric arc will be stayed in gap 17 and 27, and exist herein, thereby it is badly damaged that travelling contact 14,24 and fixed contact 12,22 are subject to, and be fallen by scorification.In the case, the electric current flowing through from circuit 70 represents by the waveform II in Fig. 6, and in the drawings, the part representing with IIa in waveform II demonstrates travelling contact 14,24 and fixed contact 12,22 has been fallen by scorification.

Due to first, second permanent magnet blocks part the 30, the 40th, separately, so, with the situation that first, second permanent magnet blocks part 30 and 40 is combined into single permanent magnet blocks part (referring to Figure 10, below will be described this situation) compare, design separately can reduce the volume of permanent magnet material, thereby can reduce material cost.

In addition, because the permanent magnet blocks part 30 and 40 that causes electric arc to be blown out is separately positioned on the top (being positioned at Z1 side) in gap 17 and 27, so, can under the prerequisite without consideration permanent magnet blocks part 30 and 40, be optimized the design of the magnet exciting coil unit 105 as relay 10A excitation driver part.

To introduce according to the housing 110 of this execution mode, permanent magnet blocks part 30 and 40 and the remodeling form of the fixed structure of two permanent magnet blocks parts 30 and 40 below.

Can adopt ceramic shell member and thermosetting resin, utilize insert molding technique to make housing 110, resin is wherein for example ABS (acrylonitrile-butadiene-styrene (ABS)) resin, PBT (polybutylene terephthalate) resin or LCP (liquid crystal polymer) resin.In addition, available epoxy or phenolic resins are manufactured high-temperature part on housing 110-be the part facing to gap 17 and 27 in side plate parts 112 and 113.

First, second permanent magnet blocks part 30 and 40 can also be neodium magnet or ferrimagnet.

As shown in Figure 7, the fixed structure of first, second permanent magnet blocks part 30 and 40 can also be like this: on the upper surface of housing 110A top board parts, have depression 115, permanent magnet blocks part 30,40 is pressed onto in depression 115.As alternative, also can utilize two-sided tape that permanent magnet blocks part 30,40 is bonded on the lower surface of housing top board parts, or can utilize bonding agent permanent magnet blocks part 30,40 to be bonded on the top board parts of housing, or, can utilize adhesive permanent magnet blocks part 30,40 to be fixed on the top board parts of housing, or, permanent magnet blocks part 30,40 can be press fit in the correspondence depression of making on housing, so that temporarily assemble, and then utilize bonding agent to be bonded in corresponding depression.

[the second execution mode]

Fig. 8 A is respectively according to the X2 sectional view of the relay 10B of second embodiment of the invention, Y2 sectional view and upward view (Z2 side) to Fig. 8 C.

Relay 10B comprises two relay main body 130X1 and 130X2, and they are combined into one, and is arranged side by side in the X1-X2 of housing 110B direction.The structure of two relay main body 130X1,130X2 is all identical with the structure of the main body of relay shown in Fig. 9 130.

Housing 110B comprises that relay main body accommodates parts 115X1, and it is for accommodating relay main body 130X1, and housing 110B also comprises that relay main body accommodates parts 115X2, and it is for accommodating relay main body 130X2.Relay main body is accommodated parts 115X1 and 115X2 and is formed in X1-X2 direction and is arranged side by side.First, second permanent magnet blocks part 30 and 40 is respectively fixed to relay main body and accommodates top board parts 111B2 and the relay main body of parts 115X2 and accommodate on the top board parts 111B1 of parts 115X1.

Referring to Fig. 9, relay main body 130 comprises: on base portion 100C, be positioned at the opening and closing member 11C of its Y2 side; Yoke 102C, it is arranged on the centre position of base portion 100C, and in vertical (uprightly) state; Be arranged on armature 103C and the plug-in unit 104C of base portion 100C middle; Magnet exciting coil unit 105C, it is installed in the Y1 side of base portion 100C, and is fixed on herein; And the terminals 61C stretching out from the bottom surface of base portion 100C and 62C and terminals 120C.

Opening and closing member 11C has with the fixing spring terminal 13C of fixed contact 12C and with the fluid spring terminal 15C of travelling contact 14C.Fixing spring terminal 13C and fluid spring terminal 15C be arranged to mutually facing to, thereby make fixed contact 12C and travelling contact 14C across the gap 17C forming between them mutually facing to.

Relay main body 130X1 is included in relay main body and accommodates in parts 115X1, and relay main body 130X2 is included in relay main body and accommodates in parts 115X2.Relay main body 130X2 has the first gap 17B (the gap 17C in corresponding Fig. 9), and relay main body 130X1 has the second gap 27B (the gap 17C shown in corresponding Fig. 9).First, second permanent magnet blocks part 30 and 40 is all oriented to and makes the N utmost point in Z2 side, and the S utmost point is in Z1 side, and act on magnetic field on two gap 17B and 27B have identical towards.Magnet exciting coil in the magnet exciting coil unit 105B1 of relay main body 130X1, connected with the magnet exciting coil in the magnet exciting coil unit 105B2 of relay main body 130X2.

Terminals 61B and 62B (the terminals 61C and 62C shown in corresponding Fig. 9 respectively), terminals 63B and 64B (the terminals 61C and 62C shown in corresponding Fig. 9 respectively) and terminals 120B and 121B (terminals 120C shown in corresponding Fig. 9) are connected with the corresponding end on the magnet exciting coil being connected in series, and these terminals stretch out downwards from the base portion 100B of relay 10B.Referring to Fig. 8 C, on the bottom surface of base portion 100B, be provided with indication letter.These letters have indicated terminals 61B and will be connected with the positive pole of power supply.Also having indicated terminals 63B will be connected with the negative pole of power supply.And having indicated terminals 62B will be connected with one end of load circuit.Also having indicated terminals 64B will be connected with the other end of load circuit.

Identical with the situation shown in Fig. 1 and Fig. 2, relay 10B is installed on printed circuit board (PCB) 80 and uses, it is arranged on the first interconnection circuit 73 and the second interconnection circuit 74, and its terminals 61B-64B is inserted into and is welded in through hole 81-84, and terminals 120B and 121B are inserted into and are welded in corresponding through hole.

In the time that relay 10B works, relay main body 130X1 and relay main body 130X2 move simultaneously.Identical with the situation of the relay 10A of above-mentioned the first execution mode, in the process of relay 10B work, all blown out to side plate parts 112B and 113B to extrinsic deflection at the electric arc of gap 17B and the generation of 27B place, thereby can be extinguished rapidly.Thereby, can avoid travelling contact to each relay main body 130X1 and 130X2 (the travelling contact 14C in corresponding Fig. 9) and fixed contact (correspondence the fixed contact 12C in Fig. 9) to cause damage, make relay 10B there is long useful life.

[the 3rd execution mode]

Schematic diagram in Figure 10 has represented the relay 10D according to third embodiment of the invention.

Figure 11 is the perspective view of relay 10D, and this view is observed and made relay 10D through housing 110D.

Figure 12 A is respectively vertical view cutaway drawing (Z1 side), X2 sectional view, the Y2 sectional view of relay 10D to Figure 12 D; And upward view (Z2 side).

Except utilizing common single permanent magnet blocks part 45 to replace first, second permanent magnet blocks part 30 and 40 in the relay 10 shown in Fig. 1, the relay 10D of the 3rd execution mode has identical structure with relay 10 shown in Fig. 1.

Permanent magnet blocks part 45 is elongated rectangular shape, strides across gap 17 and 27 and extends, and the N utmost point of this permanent magnet is in Z2 side, and the S utmost point is in Z1 side.Due to this structure can apply to gap 17 and 27 identical towards magnetic field, be feasible so adopt the design of monolithic permanent magnet blocks part 45.

In actual conditions, if Figure 12 A is to as shown in Figure 12 D, permanent magnet blocks part 45 is arranged on the lower surface of top board parts 111D of housing 110D, thereby is disposed immediately in the top in gap 17 and 27.Identical towards magnetic fields on gap 17 and 27.

Identical with the situation of the relay 10A of above-mentioned the first execution mode, respectively as indicated in the label 90D in Figure 12 A and 91D, in the time that relay 10B works, the electric arc producing at 17 and 27 places, gap is all blown out to side plate parts 112D and 113D to extrinsic deflection, thereby can be extinguished rapidly.Thereby, can avoid travelling contact 14 to relay 10D and 24 and fixed contact 12 and 22 cause damage, make relay 10 there is long useful life.

Compare with the above-mentioned design of the second permanent magnet blocks part 40 with dividing the first permanent magnet blocks part 30 that is arranged, adopt the design of monolithic permanent magnet blocks part 45 can reduce the quantity of parts, and eliminated the processing cost that permanent magnet is divided into piece part.

[the 4th execution mode]

Schematic diagram in Figure 13 has represented the relay 10E according to four embodiment of the invention.

Relay 10E comprises corresponding to two opening and closing members 200 of the first interconnection circuit 73 and 201 and corresponding to two opening and closing members 210 and 211 of the second interconnection circuit 74, this relay has four opening and closing members 200,201,210 and 211, and these parts are incorporated in same housing (not shown).If the printed circuit pattern of printed circuit board (PCB) 80 has the bifurcated parallel circuit part in first, second interconnection circuit 73 and 74 each centres, this relay 10E just can be installed on parallel circuit part and use.

Housing comprises wall components 220, and it separates opening and closing member 201 and opening and closing member 210.For each opening and closing member 200,201,210 and 211 is provided with permanent magnet blocks part (not shown).The magnetic pole of permanent magnet blocks part is oriented to like this: the direction that makes to act on the magnetic field of opening and closing member 200 and 211 on each is the paper that enters into Figure 13, and the direction that acts on the magnetic field of opening and closing member 201 and 210 on each is to leave the paper of Figure 13.

The electric arc producing at opening and closing member 200 and 211 places is blown out along X2 and X1 direction respectively, and is blown to the inner surface of housing.The electric arc producing at opening and closing member 201 and 210 places is blown out along X1 direction and X2 direction respectively, and is blown to wall components 220.

Can adopt the elongated permanent magnet blocks part that extends size and be enough to stride across opening and closing member 201 and 210 to replace two permanent magnet blocks parts facing to opening and closing member 201 and 210.

According to the design of this relay 10E, can reduce the electric current in each opening and closing member 200,201,210 and 211.

[the 5th execution mode]

Schematic diagram in Figure 14 has represented the relay 10F according to fifth embodiment of the invention.

The difference of relay 10E shown in relay 10F in this execution mode and Figure 13 (the 4th execution mode) is: replaced the wall components 220 in Figure 13, be provided with 200 and 201 points of wall components of opening 230 of opening and closing member, and be provided with 210 and 211 points of wall components of opening 231 of opening and closing member; Its difference is also: the magnetic pole of the permanent magnet blocks part arranging for corresponding opening and closing member 200,201,210 and 211 is oriented to like this: the direction that acts on the magnetic field on each opening and closing member 200,201,210 and 211 is all the paper that enters into Figure 14.

The electric arc producing at opening and closing member 200 places is blown out along X2 direction, and blows to the inner surface of housing.The electric arc producing at opening and closing member 201 places is blown out along X2 direction, and blows to wall components 230.The electric arc producing at opening and closing member 210 places is blown out along X1 direction, and blows to wall member 231.The electric arc producing at opening and closing member 211 places is blown out along X1 direction, and blows to the inner surface of housing.

Can adopt the elongated permanent magnet blocks part that extends size and be enough to stride across opening and closing member 200 and 201 to replace the permanent magnet blocks part facing to opening and closing member 200 and 201.And can adopt the elongated permanent magnet blocks part that extends size and be enough to stride across opening and closing member 210 and 211 to replace two permanent magnet blocks parts facing to opening and closing member 210 and 211.As alternative, can adopt the elongated permanent magnet blocks part that extends size and be enough to stride across opening and closing member 200,201,210 and 211 to replace the permanent magnet blocks part facing to opening and closing member 200,201,210 and 211.

Identical with the above-mentioned relay 10E in the 4th execution mode, according to the design of this relay 10F, the electric current of each opening and closing member 200,201,210 and 211 that can reduce to flow through.

[the 6th execution mode]

Figure 15 has represented the relay 10G according to sixth embodiment of the invention.

The difference of relay 10A shown in relay 10G in this execution mode and Fig. 4 (the first execution mode) is: replaced first, second permanent magnet blocks part 30 and 40 with first, second permanent magnet blocks part 30G and 40G.

Figure 16 A and Figure 16 B have represented the position relationship between first, second permanent magnet blocks part 30G and 40G and first, second gap 17 and 27.

The diameter d of each fixed contact 12,22 is 3mm.

First, second permanent magnet blocks part 30G and 40G are flat cuboids, and its length l is that 6.6mm (X1-X2 direction size), width w are 5mm (Y1-Y2 direction size).The diameter that length l is greater than fixed contact 12 and 22 (l > d), and be approximately the twice of fixed contact 12 and 22 diameter d.

The first permanent magnet blocks part 30G is facing to the first gap 17, and is positioned at the next-door neighbour top (being positioned at Z1 side) in the first gap 17.The first permanent magnet blocks Jian30G center 30GC in X1-X2 direction with respect to the off-centring of fixed contact 12 certain size e (being about 0.8mm), the direction of skew is X2 direction (electric arc that the party upwards, the first gap 17 produces is subject to blow).Thereby, with the first permanent magnet blocks part 30G is arranged to Shi Qi center 30GC compared with situation about aligning through the straight line (as shown in the double dot dash line in Figure 16 A) at fixed contact 12 centers in Z1-Z2 direction, the first permanent magnet blocks part 30G is upper have been increased with respect to the length a1 (being about 4.1mm) of fixed contact 12 centers upwardly extending part in X2 side, and the length b1 (being about 2.6mm) with respect to X2 lateral edges upwardly extending part in X2 side of fixed contact 12 on the first permanent magnet blocks part has also increased.

In addition, in the first permanent magnet blocks part 30G, the length a1 (being about 4.1mm) of the part with respect to fixed contact 12 centers in X2 side is greater than the length a2 (being about 2.5mm) of the part in X1 side with respect to fixed contact 12 centers, i.e. a1 > a2; And the length b1 (being about 2.6mm) with respect to X2 lateral edges extension in X2 direction of fixed contact 12 is greater than the length b2 (being about 1.0mm) with respect to X1 lateral edges upwardly extending part in X1 side of fixed contact 12, i.e. b1 > b2.

Thereby, with the first permanent magnet blocks part 30G is arranged to Shi Qi center 30GC compared with situation about aligning through the straight line at fixed contact 12 centers in Z1-Z2 direction, the space that the magnetic field being applied by the first permanent magnet blocks part 30G is covered with, the extension yardstick with respect to the first gap 17 in X2 direction is greater than the extension yardstick in X1 direction.That is to say, the limited magnetic field that the first permanent magnet blocks part 30G produces acts on electric arc efficiently.

Therefore, when the electric arc producing in gap 17 is under the magneticaction of the first permanent magnet blocks part 30G during to the deflection of X2 direction (as the label 90G in Figure 15 refers to), the first permanent magnet blocks part magnetic field energy that 30G produces acts on deflection electric arc more efficiently, thereby, compared with the situation of the 10A of relay shown in Fig. 4 (the first execution mode), can blow out satisfactorily electric arc, and it is extinguished rapidly.

The second permanent magnet blocks part 40G is facing to the second gap 27, and is positioned at the next-door neighbour top (being positioned at Z1 side) in the second gap 27.The second permanent magnet blocks Jian40G center 40GC in X1-X2 direction with respect to the off-centring of fixed contact 22 certain size e (being about 0.8mm), the direction of skew is X1 direction (electric arc that the party upwards, the second gap 27 produces is subject to blow).Thereby, with the second permanent magnet blocks part 40G is arranged to Shi Qi center 40GC compared with the situation (as shown in the double dot dash line in Figure 16 A) aligning through the straight line at fixed contact 22 centers in Z1-Z2 direction, the second permanent magnet blocks part 40G is upper have been increased with respect to the length a1 (being about 4.1mm) of fixed contact 22 centers upwardly extending part in X1 side, and the length b1 (being about 2.6mm) with respect to X1 lateral edges upwardly extending part in X1 side of fixed contact 22 on the second permanent magnet blocks part has also increased.

In addition, on the second permanent magnet blocks part 40G, the length a1 (being about 4.1mm) of the part with respect to fixed contact 22 centers in X1 side, be greater than the length a2 (being about 2.5mm) of the part in X2 side with respect to fixed contact 22 center, i.e. a1 > a2; And with respect to the length b1 (being about 2.6mm) of X1 lateral edges extension in X1 direction of fixed contact 22, be greater than the length b2 (being about 1.0mm) with respect to X2 lateral edges upwardly extending part in X2 side of fixed contact 22, i.e. b1 > b2.

Thereby, with the second permanent magnet blocks part 40G is arranged to Shi Qi center 40GC compared with situation about aligning through the straight line at fixed contact 22 centers in Z1-Z2 direction, with respect to the second gap 27, the extension yardstick in X1 direction is greater than the extension yardstick in X2 direction in the space that the magnetic field being applied by the second permanent magnet blocks part 40G is covered with.That is to say, the limited magnetic field that the second permanent magnet blocks part 40G produces acts on electric arc efficiently.

Therefore, when the electric arc producing in gap 27 is under the magnetic fields of the second permanent magnet blocks part 40G during to the deflection of X1 direction (as the label 91G in Figure 15 refers to), the second permanent magnet blocks part magnetic field energy that 40G produces more effectively acts on deflection electric arc, thereby, compared with the situation of the 10A of relay shown in Fig. 4 (the first execution mode), can blow out satisfactorily electric arc, and it is extinguished rapidly.

[the 7th execution mode]

Perspective representation in Figure 17 according to the relay 10H of seventh embodiment of the invention, in figure, do not express housing 110H (seeing Figure 18 A and 18B).For ease of describing, in Figure 17, first, second permanent magnet blocks part 30H and 40H are expressed as transparent.

Figure 18 A is respectively X2 sectional view, Y2 sectional view and the upward view (Z2 end view) of the 10H of relay shown in Figure 17 to Figure 18 C.

Schematic in Figure 19 show relay 10H and with being connected of DC power supply 71 and load circuit 72.

[structure of relay 10H]

Relay 10H comprises the first relay main body 250X2 and the second relay main body 250X1, and two relay main bodys are arranged side by side in housing 110H along X1-X2 direction, lay respectively at X2 side and X1 side.

Referring to Figure 17, Figure 18 A, to Figure 18 C and Figure 19, the first relay main body 250X2 comprises: the first opening and closing member 11HX2, and it is positioned at Y2 side on base portion 100HX2; Yoke 102HX2, it is arranged in the middle of base portion 100HX2 according to vertical (uprightly) attitude; Be arranged on armature 103HX2 and the plug-in unit 104HX2 of base portion 100HX2 middle; Magnet exciting coil unit 105HX2, it is mounted and is fixed in the Y1 side of base portion 100HX2; And terminals 61H, 62H and terminals 120H, these terminals stretch out from the bottom surface of base portion 100HX2.The first opening and closing member 11HX2 has the first gap, and it has the first gap portion 261 and the second gap portion 262.

The first opening and closing member 11HX2 comprises: first, second fixing spring terminal 251X2 and 252X2, and they are disposed in X1-X2 direction; Movable elastic component 255X2, its size is enough to be covered with first, second fixing spring terminal 251X2 and 252X2.Fixed contact 252X2 and 254X2 are respectively fixed on first, second fixing spring terminal 251X2 and 253X2.The lower end of movable elastic component 255X2 is fixed on base portion 100HX2 according to the form of bending.Travelling contact 256X2 and 257X2 are fixed on fluid spring terminal 255X2.

Fixed contact 252X2 and travelling contact 256X2 across the first gap portion forming between them mutually facing to.Fixed contact 254X2 and travelling contact 257X2 across the second gap portion 262 forming between them mutually facing to.

The structure of the second relay main body 250X1 is identical with the structure of above-mentioned relay main body 250X2, and it comprises the second opening and closing member 11HX1.The second opening and closing member 11HX1 comprises the second gap, and the second gap comprises third space part 263 and the 4th gap portion 264.

The second opening and closing member 11HX1 has third space part 263, and it is between fixed contact 252X1 and travelling contact 256X1, and the second opening and closing member also has the 4th gap portion 264, and it is between fixed contact 254X1 and travelling contact 257X1.Terminals 63H and 64H and terminals 121H stretch out from the bottom surface of base portion 100HX2.

At Figure 17, in Figure 19, in the second relay main body 250X1, those elements identical with the first relay main body 250X2 are referred to identical number designation, but add suffix " X1 ", rather than suffix " X2 ".

Magnet exciting coil 16HX1 in the magnet exciting coil unit 105HX1 of magnet exciting coil 16HX2 in the magnet exciting coil unit 105HX2 of the first relay main body 250X2 and the second relay main body 250X1 is being connected.

First, second permanent magnet blocks part 30H and 40H are rectangular shape, and they are fixed on the top board parts 111H of housing 110H.The first permanent magnet blocks part 30H is positioned in the Z1 side of the first gap portion 261 and the second gap portion 262, thereby can extend across first, second gap portion 261 and 262.The second permanent magnet blocks part 40H is positioned in the Z1 side of the 3rd, the 4th gap portion 263 and 264, thereby can extend across the 3rd, the 4th gap portion 263 and 264.

First, second permanent magnet blocks part 30H and 40H are oriented to makes their the N utmost point be positioned at Z2 side, the S utmost point is positioned at Z1 side.As shown in figure 19, on the first to the 4th gap portion 261-264, acting on directed identical magnetic field.

Referring to Figure 18 C, on the bottom surface of each base portion 100HX1 and 100HX2, be provided with indication letter.These indications have indicated terminals 61H and will be connected with the positive pole of power supply.And indicate terminals 63H and will be connected with the negative pole of power supply.Also having indicated terminals 62H will be connected with one end of load circuit.And indicate terminals 64H and will be connected with the other end of load circuit.

Referring to Figure 18 B, housing 110H has partition component 115H in centre position.This partition component is to be for example made up of heat-resisting ceramic material.Partition component 115H is positioned between the first relay main body 250X2 and the second relay main body 250X1, thereby first, second relay main body 250X2 and 250X1 are divided out.

[installation of relay 10H and work]

Referring to Figure 19, adopt the circuit 70 of relay 10H to comprise: DC power supply 71, its output is up to the voltage of hundreds of volt; Load circuit 72; The first interconnection circuit 73, it couples together the positive pole of DC power supply 71 and load circuit 72; And second interconnection circuit 74, it couples together the negative pole of DC power supply 71 and load circuit 72.The first interconnection circuit 73 and the second interconnection circuit 74 are formed in a side of printed circuit board (PCB) 80H, and are made into the form of circuit pattern.

The first interconnection circuit 73 comprises from the extended circuit pattern 73P of positive pole of DC power supply 71 and from the load circuit 72 extended circuit pattern 73L in one end.The second interconnection circuit 74 comprises from the extended circuit pattern 74P of negative pole of DC power supply 71 and from the extended circuit pattern 74L of the other end of load circuit 72.

The relay 10H with above-mentioned structure is installed on printed circuit board (PCB) 80H, and, terminals 61H be inserted into and welding position to the through hole that is arranged in circuit pattern 73P end, terminals 63H is inserted into and is welded in place in the through hole of circuit pattern 74P end, terminals 62H is inserted into and is welded in place in the through hole of circuit pattern 73L end, and terminals 64H is inserted into and is welded in place in the through hole of circuit pattern 74L end.That is to say, the first relay main body 250X2 is arranged on the centre of the first interconnection circuit 73, and the second relay main body 250X1 is arranged on the centre of the second interconnection circuit 74.Terminals 120H and 121H are also inserted into and are welded in the corresponding through hole of making on printed circuit board (PCB) 80H.

When direct current is in the time that terminals 120H and 121H flow through from magnet exciting coil 16HX2 and 16HX1, magnet exciting coil unit 105HX2 and 105HX1 are encouraged simultaneously.Result is exactly, and in the first relay main body 250X2, the horizontal component of armature 103HX2 is attracted, and by adhesive to magnet exciting coil unit 105HX2.Due to the This move of armature 103HX2, movable elastic component 255X2 is squeezed in Y2 direction, makes thus travelling contact 256X2 realize and contacting with 254X2 with fixed contact 252X2 respectively with 257X2.So closed the first relay main body 250X2.In the second relay main body 250X1, the horizontal component of armature 103HX1 is attracted, and by adhesive to magnet exciting coil unit 105HX1.Due to the This move of armature 103HX1, movable elastic component 255X1 is squeezed in Y2 direction, makes thus travelling contact 256X1 realize and contacting with 254X1 with fixed contact 252X1 respectively with 257X1.So closed the second relay main body 250X1.

Result is exactly that electric current flows according to the arrow shown in Figure 19, makes thus load circuit 72 carry out work.In movable elastic component 255X2, electric current is from travelling contact 25,7X2 mono-effluent to travelling contact 25,6X2 mono-side.In movable elastic component 255X1, electric current is from travelling contact 25,7X1 mono-effluent to travelling contact 25,6X1 mono-side.

In the time stopping to magnet exciting coil 16HX2 and 16HX1 power supply, travelling contact 256X2 moves with 257X2 and departs from and the contacting of fixed contact 252X2 and 254X2, meanwhile, travelling contact 256X1 moves with 257X1 and departs from and the contacting of fixed contact 252X1 and 254X1, thereby, in the first to the 4th gap portion 261-264, all produce electric arc.

In the case, electric arc in the first gap portion 261 blows out to the side plate parts 112H of housing 110H along X2 direction deflection as 271 indications of mark in figure, thereby can extinguish rapidly, electric arc in the second gap portion 262 blows out to the partition component 115H of housing 110H along X1 direction deflection as 272 indications of mark in figure, extinguished rapidly thus, electric arc in third space part 263 blows out to the partition component 115H of housing 110H along X2 direction deflection as 273 indications of mark in figure, extinguished rapidly thus, and, electric arc in the 4th gap portion 264 blows out to the side plate parts 113H of housing 110H along X1 direction deflection as 274 indications of mark in figure, extinguished rapidly thus.

Graphical presentation in Figure 20 A in the second gap portion 262 produce electric arc 272, this electric arc is between the travelling contact 257X2 as anodal and the fixed contact 254X2 as negative pole.Graphical presentation in Figure 20 B the form of the voltage Varc of electric arc 272 voltage of pilot arc (can).

What provide as the following formula is such, and the voltage Varc of electric arc 272 is two voltage V1 and V2 sum:

Varc＝V1+V2

Wherein, V1 is near the negative electricity pressure drop v2 sum (V1=v1+v2) of falling v1 and producing fixed contact 254X2 near the cathode voltage producing travelling contact 257X2, and V2 is arc stream (field intensity of arc column and the product of its length).

With this understanding, arc voltage Varc must be greater than the voltage E of DC power supply 71, that is to say, in the time that the travelling contact 257X2 contacting with fixed contact 254X2 moves and separates with fixed contact 254X2, in order to prevent producing electric arc between travelling contact 257X2 and fixed contact 254X2,,, in order to cut off the electric current between travelling contact 257X2 and fixed contact 254X2, Varc > E is must satisfied condition.

Relay 10H in this execution mode has the gap portion 262 and 261 of two series connection, and these two gap portions are arranged in the first interconnection circuit 73 that the positive pole of DC power supply 71 and load circuit 72 are coupled together.Thereby, compared with only thering is the situation of single gap portion in the first interconnection circuit 73-for example, compared with adopting the situation (the first execution mode) of the relay 10A shown in Fig. 4, voltage drop V1 will be twice, thereby improve arc voltage Varc, make electric arc be not easy to occur.

In the second interconnection circuit 74 that DC power supply 71 negative poles and load circuit 72 are coupled together, two gap portions 263 and 264 are also connected.Thereby as described above, arc voltage Varc has been enhanced, make electric arc be not easy to occur.

Thereby, in the time that relay 10H is installed as shown in Figure 19, be not easy to produce electric arc at the first to the 4th gap portion 261-264 place, and, as mentioned above, the electric arc producing at the first to the 4th gap portion 261-264 place can be blown and extinguish immediately, thereby, prevent travelling contact 256X2,257X2,256X1,257X1 and fixed contact 252X2,254X2,252X1,254X1 to cause damage.Result is exactly, even if relay 10H also can not decline through its performance of opening and closing operations repeatedly, thereby relay 10H has long working life.

In addition, although the gap of relay 10H (261 to 264) number is four, this is identical with relay 10F shown in the 10E of relay shown in Figure 13 and Figure 14, but the terminals number (for circuit 70) stretching out from relay 10H bottom is four, this number is the half (referring to Figure 18 C) of relay 10E or the upper terminals number (eight) of relay 10F.Result is exactly, according to the design of relay 10H, on printed circuit board (PCB), the number of the circuit pattern relevant to relay can be reduced, and can only in a side of printed circuit board (PCB), make circuit pattern, and without in both sides drawing, thereby can reduce the manufacturing cost of printed circuit board (PCB).

In addition, if the first relay main body 250X2 and the second relay main body 250X1 can be separated from each other enough large distance, partition component 115H can be cancelled.In the situation that cancelling partition component 115H, first, second permanent magnet blocks part 30H and 40H collection can be combined together, that is to say, can replace first, second permanent magnet blocks part with the elongated permanent magnet blocks part of monolithic.

In addition, partition component 115H can be and independently member of housing 110H.

[the 8th execution mode]

Perspective representation in Figure 21 according to the relay 10J of eighth embodiment of the invention, in figure, do not express housing.For ease of describing, in Figure 21, first, second permanent magnet blocks part 30J and 40J are expressed as transparent.

Relay 10J is with the difference of the 10H of relay shown in Figure 17 (the 7th execution mode): together with the first relay main body 250X2 is integrated into the second relay main body 250X1, and replace magnet exciting coil unit 105HX2 and 150HX1 with single excitation driver part 300.

Excitation driver part 300 comprises magnet exciting coil unit 301, yoke 302, armature 303 and plug-in unit 304.The expanded range of plug-in unit 304 is comprising movable elastic component 255X2 and movable elastic component 255X1.

The first opening and closing member 11JX2 and the second opening and closing member 11JX1 are arranged on single base portion 310 along X1-X2 direction.

In the time that this single excitation driver part 300 is activated, utilize plug-in unit 304 that movable elastic component 255X2 and 255X1 are squeezed in Y2 direction, thus simultaneously closed the first opening and closing member 11JX2 and the second opening and closing member 11JX1.

[the 9th execution mode]

Perspective representation in Figure 22 according to ninth embodiment of the invention, not with the relay 10K of housing.In Figure 22, for ease of describing, first, second permanent magnet blocks part 30K and 40K are expressed as transparent.

The difference of relay 10H shown in relay 10K and Figure 17 (the 7th execution mode) is: utilize respectively movable elastic component 280X2 and 280X1 to replace movable elastic component 255X2 and the 255X1 shown in Figure 17.

The size of movable elastic component 280X2 is enough large, is enough to stride across first, second fixing spring terminal 251X2 and 253X2, and is fixed with travelling contact 256X2 and 257X2 thereon.Movable elastic component 280X2 is fixed on the Y2 side surface of plug-in unit 104KX2.Plug-in unit 104KX2 is fixed on the vertical component of L shaped armature 103KX2.

The size of movable elastic component 280X1 is enough large, is enough to stride across the 3rd, the 4th fixing spring terminal 251X1 and 253X1 and extends, and be fixed with travelling contact 256X1 and 257X1 thereon.Movable elastic component 280X1 is fixed on the Y2 side surface of plug-in unit 104KX1.Plug-in unit 104KX1 is fixed on the vertical component of L shaped armature 103KX1.

In the time that the first relay main body 250X2 and the second relay main body 250X1 are driven simultaneously, plug-in unit 104KX2 and 104KX1 are activated simultaneously in Y2 direction, thereby movable elastic component 280X2 and 280X1 are subjected to displacement simultaneously in Y2 direction.

As the relay 10J (referring to Figure 21) of above-mentioned the 8th execution mode, can replace with single magnet exciting coil unit magnet exciting coil unit 105HX2 and the 105HX1 of relay 10K.According to such structural design, single magnet exciting coil unit is driven and mobile movable elastic component 280X2 and 280X1.

[the tenth execution mode]

Decomposition diagram in Figure 23 has represented the relay 10L according to tenth embodiment of the invention.

Figure 24 is the Y2 sectional view of the relay 10L shown in Figure 23.

Relay 10L and Fig. 8 A are the fixed structure of housing to the difference of the relay 10B shown in Fig. 8 C (the second execution mode).

Housing 110K comprises side plate parts 112K, 113K and central dividing plate parts (insulation barrier) 115K.By following structure, housing 110K is attached on relay main body 130X1 and 130X2: the hole 320X2 near part side plate parts 112K lower end is engaged with the jaw members 310X2 on relay main body 130X2 base portion 100LX2; Hole 320X1 near part side plate parts 113K lower end is engaged with the jaw members 310X1 on relay main body 130X1 base portion 100LX1; And the X2 side depression 321 near part partition component 115K lower end is engaged with the jaw members 311X2 of relay main body 130X2 base portion 100LX2; And the X1 side depression 322 near part partition component 115K lower end is engaged with the jaw members 311X1 of relay main body 130X1 base portion 100LX1.Thereby the bond strength between housing 110K and relay main body 130X1 and 130X2 is very high.The function of partition component 115K is that relay main body 130X1 and 130X2 are fixed.

In addition, without the interconnection circuit that intersection is set on the printed circuit board (PCB) this relay has been installed.Thereby, only utilize the one-sided interconnection circuit that just can form of printed circuit board (PCB).

The present invention is not limited to specifically described execution mode in literary composition, under the prerequisite departing from the scope of the invention not, can make remodeling and variation.

The application is that the formerly patent application of Japan based on following proposes: the 2007-239233 patent application of submitting on September 14th, 2007; And the 2008-089410 patent application of submitting on March 31st, 2008, the full content of these earlier applications is incorporated in the application as a reference.

Claims

1. a relay, it comprises:

The first opening and closing member, described the first opening and closing member comprises: the first fixing spring terminal; The first fixed contact, described the first fixed contact is arranged on described the first fixing spring terminal; The second fixing spring terminal; The second fixed contact, described the second fixed contact is arranged on described the second fixing spring terminal; The first fluid spring member; The first travelling contact, described the first travelling contact is arranged on described the first fluid spring member, and in the face of described the first fixed contact, is the state contacting with described the first fixed contact and the state departing from described the first fixed contact so that removable; The second travelling contact, described the second travelling contact is arranged on described the first fluid spring member, and in the face of described the second fixed contact, be the state contacting with described the second fixed contact and the state departing from described the second fixed contact so that removable, wherein, the first fluid spring member strides across the first fixing spring terminal and the extension of the second fixing spring terminal;

The second opening and closing member, described the second opening and closing member comprises: the 3rd fixing spring terminal; The 3rd fixed contact, described the 3rd fixed contact is arranged on described the 3rd fixing spring terminal; The 4th fixing spring terminal; The 4th fixed contact, described the 4th fixed contact is arranged on described the 4th fixing spring terminal; The second fluid spring member; The 3rd travelling contact, described the 3rd travelling contact is arranged on described the second fluid spring member, and in the face of described the 3rd fixed contact, is the state contacting with described the 3rd fixed contact and the state departing from described the 3rd fixed contact so that removable; And, the 4th travelling contact, described the 4th travelling contact is arranged on described the second fluid spring member, and in the face of described the 4th fixed contact, be the state contacting with described the 4th fixed contact and the state departing from described the 4th fixed contact so that removable, wherein, the second fluid spring member strides across the 3rd fixing spring terminal and the extension of the 4th fixing spring terminal;

Single excitation driver part, it is configured to impel described the first opening and closing member and described the second opening and closing member work;

Housing, it comprises side plate parts and top board parts, and is hiding described the first opening and closing member, described the second opening and closing member and described excitation driver part; And

The first permanent magnet and the second permanent magnet, described the first permanent magnet and the second permanent magnet are fixed on the described top board parts of described housing, to make the first permanent magnet facing to the gap between the gap between described the first fixed contact and described the first travelling contact and described the second fixed contact and described the second travelling contact, and make the second permanent magnet facing to the gap between the gap between described the 3rd fixed contact and described the 3rd travelling contact and described the 4th fixed contact and described the 4th travelling contact, described the first permanent magnet and described the second permanent magnet are oriented to the identical magnetic pole having facing to gap described in each, so that the electric arc producing in the gap between the gap between described the first fixed contact and described the first travelling contact and described the second fixed contact and described the second travelling contact is blown the gap between the gap along contrary direction away from each other from described the first fixed contact and between described the first travelling contact and described the second fixed contact and described the second travelling contact separately, the electric arc producing in gap between gap between described the 3rd fixed contact and described the 3rd travelling contact and described the 4th fixed contact and described the 4th travelling contact is blown the gap between the gap along contrary direction away from each other from described the 3rd fixed contact and between described the 3rd travelling contact and described the 4th fixed contact and described the 4th travelling contact separately.

2. relay according to claim 1, is characterized in that: the first permanent magnet and the second permanent magnet are all the one in samarium-cobalt magnet, neodymium magnet and ferrite magnet.

3. relay according to claim 1, is characterized in that: housing has heat resistant structure.

4. a circuit arrangement, it comprises:

The first interconnection circuit, it couples together the positive pole of DC power supply and load;

The second interconnection circuit, it couples together the negative pole of DC power supply and load; And

Relay according to claim 1,

Wherein, described relay is configured to like this: make the first opening and closing member can switch on and off the first interconnection circuit, and make the second opening and closing member can switch on and off the second interconnection circuit.