WO2024078418A1 - 一种继电器 - Google Patents
一种继电器 Download PDFInfo
- Publication number
- WO2024078418A1 WO2024078418A1 PCT/CN2023/123399 CN2023123399W WO2024078418A1 WO 2024078418 A1 WO2024078418 A1 WO 2024078418A1 CN 2023123399 W CN2023123399 W CN 2023123399W WO 2024078418 A1 WO2024078418 A1 WO 2024078418A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- conductive magnet
- push rod
- rod unit
- insulating cover
- lower conductive
- Prior art date
Links
- 230000003068 static effect Effects 0.000 claims abstract description 69
- 239000000919 ceramic Substances 0.000 claims description 99
- 230000008093 supporting effect Effects 0.000 claims description 22
- 235000014676 Phragmites communis Nutrition 0.000 claims description 20
- 238000001465 metallisation Methods 0.000 claims description 17
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 28
- 238000000034 method Methods 0.000 description 9
- 238000010586 diagram Methods 0.000 description 8
- 229910052742 iron Inorganic materials 0.000 description 7
- 230000009471 action Effects 0.000 description 6
- 230000008569 process Effects 0.000 description 6
- 238000003466 welding Methods 0.000 description 6
- 238000009413 insulation Methods 0.000 description 5
- 238000005219 brazing Methods 0.000 description 4
- 230000006835 compression Effects 0.000 description 4
- 238000007906 compression Methods 0.000 description 4
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- 238000004880 explosion Methods 0.000 description 3
- 238000001125 extrusion Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- 101100012902 Saccharomyces cerevisiae (strain ATCC 204508 / S288c) FIG2 gene Proteins 0.000 description 2
- 238000010891 electric arc Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- 101001121408 Homo sapiens L-amino-acid oxidase Proteins 0.000 description 1
- 101000827703 Homo sapiens Polyphosphoinositide phosphatase Proteins 0.000 description 1
- 102100026388 L-amino-acid oxidase Human genes 0.000 description 1
- 102100023591 Polyphosphoinositide phosphatase Human genes 0.000 description 1
- 101100233916 Saccharomyces cerevisiae (strain ATCC 204508 / S288c) KAR5 gene Proteins 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000010941 cobalt Substances 0.000 description 1
- 229910017052 cobalt Inorganic materials 0.000 description 1
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H50/00—Details of electromagnetic relays
- H01H50/02—Bases; Casings; Covers
- H01H50/04—Mounting complete relay or separate parts of relay on a base or inside a case
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H50/00—Details of electromagnetic relays
- H01H50/54—Contact arrangements
- H01H50/56—Contact spring sets
- H01H50/58—Driving arrangements structurally associated therewith; Mounting of driving arrangements on armature
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H50/00—Details of electromagnetic relays
- H01H50/64—Driving arrangements between movable part of magnetic circuit and contact
Definitions
- the present disclosure relates to the technical field of electric power appliances, and in particular to a relay.
- the heat loss of high-voltage DC relays is required to be reduced under normal circumstances.
- the battery pack is short-circuited, the battery capacity is higher, and the short-circuit current and voltage of the relay are required to be further increased.
- the short-circuit load is large, the contacts of the high-voltage DC relay will bounce open due to the electromotive repulsion generated by the short-circuit current, and then the contacts will arc. Since the load short-circuit current and voltage are both very high, it will cause violent arcing between the contacts in an instant.
- the prior art usually sets a follow-up anti-short-circuit ring electromagnetic structure in the moving component.
- the short-circuit current generates an electric repulsion force
- the upper conductive magnet in the anti-short-circuit ring electromagnetic structure generates an electromagnetic attraction to the lower conductive magnet, and fixes the lower conductive magnet and the moving contact piece together, thereby ensuring that the moving contact does not bounce. Since the support of the moving component needs to rely on the holding force of the moving iron core, and the holding force is maintained by the electromagnetic force generated by the coil being energized, if the power consumption of the coil is limited, the holding force is limited, and the holding force used to support the anti-short-circuit ring is also limited.
- the lower conductive magnet will also generate an electromagnetic attraction to the upper conductive magnet.
- the holding force of the iron core cannot support the electromagnetic attraction of the lower yoke iron to the upper conductive magnet, the contact will still bounce.
- the embodiments of the present disclosure provide a relay that meets the requirements of safety and lightness.
- a relay comprising:
- contact containers including insulating covers
- a contact assembly comprising a moving reed and a pair of stationary contact lead-out terminals, wherein the stationary contact lead-out terminals are arranged on the insulating cover, the stationary contact lead-out terminals at least partially extend into the insulating cover, the moving reed is arranged in the insulating cover, and the moving reed is used to contact or separate from the pair of stationary contact lead-out terminals;
- An anti-short circuit assembly comprising an upper conductive magnet and a lower conductive magnet, wherein the upper conductive magnet is arranged on the top inner wall of the insulating cover, and the lower conductive magnet is fixed to the bottom of the movable spring piece, and the upper conductive magnet and the lower conductive magnet are used to form a magnetic conductive loop to generate an attractive force when a large fault current occurs in the movable spring piece, so as to resist the electric repulsion between the movable spring piece and the static contact lead-out end;
- the upper conductive magnet is provided with a fixed mounting foot, and the fixed mounting foot is fixedly connected to the top inner wall of the insulating cover so that a gap is provided between the upper conductive magnet and the top inner wall of the insulating cover.
- the insulating cover is a ceramic cover
- a metallized area is provided on the top inner wall of the ceramic cover corresponding to the position of the fixed mounting foot, and the fixed mounting foot is welded to the ceramic cover through the metallized area.
- the relay further comprises a driving assembly, the driving assembly comprises a push rod unit, the push rod unit is capable of driving the moving reed to move in a direction close to the static contact lead-out end;
- the movable spring sheet and the lower conductive magnet form a movable component
- the movable component and the push rod unit are matched through a limiting protrusion and a limiting hole.
- the lower conductive magnet includes a magnet body and two side plates, the two side plates are respectively arranged on both sides of the magnet body, and the push rod unit is provided with two baffles toward the direction of the supporting part; wherein the baffles and the side plates are matched through limiting protrusions and limiting holes.
- the movable component also includes a supporting portion, which is arranged between the push rod unit and the lower conductive magnet, the supporting portion and the lower conductive magnet are fixedly connected, and the push rod unit and the supporting portion cooperate through the limiting protrusion and the limiting hole to drive the movable spring to move.
- the driving assembly further includes an elastic member, one end of the elastic member abuts against the push rod unit, and the other end of the elastic member abuts against the movable member.
- the support portion is a U-shaped bracket, the open end of the U-shaped bracket is arranged toward the push rod unit, and two side arms of the U-shaped bracket are used to limit the elastic member;
- the side arm of the U-shaped bracket and the push rod unit are matched through a limiting protrusion and a limiting hole.
- the support portion is a fixed sheet
- the push rod unit is provided with a baffle in a direction toward the support portion, and the baffle is used to limit the elastic member
- the baffle and the fixing plate cooperate with each other through a limiting protrusion and a limiting hole.
- the upper conductive magnet is a straight-line structure, and the upper conductive magnet extends along the width direction of the movable spring piece; and/or,
- the lower conductive magnet is a U-shaped structure, the opening of the lower conductive magnet is arranged toward the movable spring piece, and the parts of the lower conductive magnet located on both sides of the movable spring piece in the width direction can abut against the upper conductive magnet.
- the insulating cover comprises:
- a ceramic plate wherein the metallized area is disposed on a side of the ceramic plate close to the upper magnet;
- An insulating support portion located below the ceramic plate and used to support the ceramic plate;
- the ceramic plate and the insulating support part are split structures.
- a metallized portion is provided on a side of the ceramic plate away from the upper conductive magnet, and the metallized portion is used to connect the static contact lead-out terminal.
- the ceramic plate is provided with a metallization structure corresponding to the insulating support portion, and the metallization structure is used to connect at least a portion of the insulating support portion.
- the insulating support portion includes:
- a surrounding frame located below the ceramic plate and used to support the ceramic plate, wherein the surrounding frame is connected to the metallized structure;
- An insulating frame is arranged in the surrounding frame, and the insulating frame is connected to the ceramic board.
- the insulating frame is bonded to the ceramic board.
- the insulating support portion includes a ceramic frame and a surrounding frame, one end of the ceramic frame is connected to the surrounding frame, and the other end is connected to the metallization structure of the ceramic board, and the surrounding frame supports the ceramic board.
- the metallization structure and the metallization area are located in the same horizontal plane.
- the relay of the disclosed embodiment includes an insulating cover through a contact container, a static contact lead-out terminal is arranged on the insulating cover, the insulating cover provides a fixed position for the static contact lead-out terminal, a moving reed is arranged in the insulating cover, the static contact lead-out terminal at least partially extends into the insulating cover, and the insulating cover provides an insulating environment for the moving reed and at least part of the static contact lead-out terminal of the contact assembly.
- the moving reed is used to contact or separate with a pair of static contact lead-out terminals.
- the lower conductive magnet By placing the lower conductive magnet below the moving spring, the lower conductive magnet can move with the moving spring toward the direction close to the static contact lead-out end. After the moving spring and the static contact lead-out end are in contact, the moving spring can no longer move upward.
- the lower conductive magnet can move toward the direction close to the upper conductive magnet, so that a magnetic conductive circuit can be formed between the upper conductive magnet and the lower conductive magnet.
- the upper conductive magnet is arranged above the moving spring and the lower conductive magnet is arranged below the moving spring, which is equivalent to the moving spring being sandwiched between the upper conductive magnet and the lower conductive magnet.
- the suction force plays a role in attracting and pulling the moving spring, and is used to resist the electric repulsion force generated by the fault current between the moving spring and the static contact lead-out end, so as to avoid the situation that the moving spring and the static contact lead-out end are separated from each other and cause arcing explosion, thereby ensuring the reliability and safety of the contact between the moving spring and the static contact lead-out end.
- the upper conductive magnet By setting the upper conductive magnet on the top inner wall of the insulating cover, that is, the upper conductive magnet is fixed at a fixed position above the inner cavity of the insulating cover, so that the upper conductive magnet and the lower conductive magnet in the anti-short circuit component form a magnetic circuit and the electromagnetic attraction generated is transferred from acting on the driving component to a fixed and static position, eliminating the risk of the moving iron core being disengaged and the relay being burned or exploded under the action of a strong electric arc.
- the upper conductive magnet adopts a fixed structure, and the insulating cover plays the role of carrying the upper conductive magnet, so that the driving component does not need to bear the attraction of the lower conductive magnet on the upper conductive magnet when the upper short circuit occurs, and a large coil is not required to meet the holding force requirements, thereby meeting the requirements of lightweight relays.
- the upper conductive magnet is provided with a fixed mounting foot so that the entire upper conductive magnet does not fit into the top interior of the insulating cover.
- the gap between the upper conductive magnet and the top inner wall of the insulating cover is utilized to increase the creepage distance between the two static contact lead-out terminals to ensure the insulation creepage distance requirement.
- FIG1 is a schematic structural diagram of a relay according to a first embodiment of the present disclosure
- FIG2 shows a top view of a relay according to a first embodiment of the present disclosure
- FIG3 shows a cross-sectional view of A-A in FIG2 ;
- FIG4 shows an exploded view of a relay according to the first embodiment of the present disclosure
- FIG5 is a schematic diagram showing a working state of a relay according to the first embodiment of the present disclosure
- FIG6 is a schematic diagram showing the structure of a relay according to a second embodiment of the present disclosure.
- FIG7 shows a top view of a relay according to a second embodiment of the present disclosure
- FIG8 shows a cross-sectional view taken along line B-B in FIG7 ;
- FIG9 shows an exploded view of a relay according to a second embodiment of the present disclosure
- FIG10 shows a cross-sectional view of a relay according to a third embodiment of the present disclosure
- FIG11 is a schematic diagram showing the structure of a relay according to a third embodiment of the present disclosure.
- FIG12 shows an exploded view of a relay according to a third embodiment of the present disclosure
- FIG13 is a schematic diagram showing the structure of a relay according to a fourth embodiment of the present disclosure.
- FIG14 shows a top view of a relay according to a fourth embodiment of the present disclosure.
- FIG15 shows a cross-sectional view of C-C in FIG13 ;
- FIG16 shows an exploded view of a relay according to a fourth embodiment of the present disclosure.
- FIG17 is a schematic diagram showing the structure of a relay according to a fifth embodiment of the present disclosure.
- FIG18 shows a top view of a relay according to a fifth embodiment of the present disclosure.
- FIG19 shows a cross-sectional view taken along line D-D in FIG18 ;
- FIG. 20 is an exploded view of a relay according to a fifth embodiment of the present disclosure.
- Insulation cover 111. Ceramic plate; 112. Insulation support portion; 1121. Surrounding frame; 1122. Insulation frame; 1123. Ceramic frame; 12. Yoke iron plate;
- Electromagnet unit 441. Coil frame; 442. Coil; 443. Moving iron core.
- Figure 1 shows a schematic diagram of the structure of the relay of the first embodiment of the present disclosure
- Figure 2 shows a top view of the relay of the first embodiment of the present disclosure
- Figure 3 shows a cross-sectional view of A-A in Figure 2
- Figure 4 shows an exploded view of the relay of the first embodiment of the present disclosure.
- the present embodiment provides a relay, which includes a contact container 1, a contact assembly 2, and an anti-short circuit assembly 3.
- the contact container 1 includes an insulating cover 11.
- the contact assembly 2 includes a movable spring 22 and a pair of static contact lead-out terminals 21.
- the static contact lead-out terminals 21 are arranged on the insulating cover 11.
- the static contact lead-out terminals 21 at least partially extend into the insulating cover 11.
- the movable spring 22 is arranged in the insulating cover 11.
- the movable spring 22 is used to contact or separate from the pair of static contact lead-out terminals 21.
- the relay of the disclosed embodiment includes an insulating cover 11 through a contact container 1, a static contact lead-out terminal 21 is arranged on the insulating cover 11, and the insulating cover 11 provides a fixed position for the static contact lead-out terminal 21.
- the movable spring piece 22 is arranged in the insulating cover 11, and the static contact lead-out terminal 21 at least partially extends into the insulating cover 11, and the insulating cover 11 provides an insulating environment for the movable spring piece 22 and at least part of the static contact lead-out terminal 21 of the contact assembly 2.
- the movable spring piece 22 is used to contact or separate with a pair of static contact lead-out terminals 21.
- the relay provided in this embodiment also includes an anti-short-circuit component 3, which includes an upper conductive magnet 31 and a lower conductive magnet 32, and the lower conductive magnet 32 is fixed to the bottom of the moving reed 22.
- the upper conductive magnet 31 and the lower conductive magnet 32 are used to form a magnetic conductive loop to generate suction when a large fault current occurs in the moving reed 22, and are used to resist the electric repulsion force between the moving reed 22 and the static contact lead-out terminal 21.
- the upper conductive magnet 31 and the lower conductive magnet 32 can be made of materials such as iron, cobalt, nickel and their alloys.
- the lower conductive magnet 32 is fixed to the lower side of the moving spring 22, and the lower conductive magnet 32 can move with the moving spring 22 toward the direction close to the static contact lead-out terminal 21.
- the lower conductive magnet 32 can move toward the direction close to the upper conductive magnet 31, so that a magnetic conductive circuit can be formed between the upper conductive magnet 31 and the lower conductive magnet 32.
- the upper conductive magnet 31 is arranged above the moving spring 22, and the lower conductive magnet 32 is arranged below the moving spring 22, which is equivalent to the moving spring 22 being sandwiched between the upper conductive magnet 31 and the lower conductive magnet 32.
- the suction force plays a role in attracting and pulling the moving spring 22, and is used to resist the electromotive repulsion force generated by the fault current between the moving spring 22 and the static contact lead-out terminal 21, so as to avoid the situation that the moving spring 22 and the static contact lead-out terminal 21 are separated from each other and cause arc explosion, thereby ensuring the reliability and safety of the contact between the moving spring 22 and the static contact lead-out terminal 21.
- the relay further includes a driving assembly 4, which includes a push rod unit 41.
- the push rod unit 41 can drive the anti-short circuit assembly 3 to move relative to the insulating cover 11 toward the direction close to the static contact lead-out terminal 21.
- the push rod unit 41 is partially arranged in the insulating cover 11 and is movably arranged relative to the insulating cover 11.
- the push rod unit 41 provides power for the movable spring piece 22 to push the movable spring piece 22 to move, thereby realizing the contact and separation between the movable spring piece 22 and the static contact lead-out terminal 21.
- the upper conductive magnet 31 and the lower conductive magnet 32 are both movable, the upper conductive magnet 31 and the lower conductive magnet 32 need to be supported by the holding force of the driving component 4. If the holding force cannot support the suction force of the lower conductive magnet 32 on the upper conductive magnet 31, the upper conductive magnet 31 and the lower conductive magnet 32 will still fall and cause the movable spring 22 and the static contact lead-out terminal 21 to separate.
- the existing method is to increase the size of the coil 442 of the driving component 4 to achieve the purpose of increasing the holding force, but the larger coil 442 is difficult to meet the requirements of lightweight.
- the upper conductive magnet 31 is disposed on the top inner wall of the insulating cover 11 .
- the upper conductive magnet 31 By setting the upper conductive magnet 31 on the top inner wall of the insulating cover 11, that is, the upper conductive magnet 31 is fixed at a fixed position above the inner cavity of the insulating cover 11, so that the upper conductive magnet 31 and the lower conductive magnet 32 in the anti-short circuit component 3 form a magnetic circuit and the electromagnetic attraction generated is transferred from acting on the driving component 4 to a fixed and static position, eliminating the risk of the moving iron core 443 being disengaged and the relay being burned or exploded under the action of a strong electric arc.
- the upper conductive magnet 31 adopts a fixed structure, and the insulating cover 11 plays the role of carrying the upper conductive magnet 31, so that the driving component 4 does not need to bear the attraction of the lower conductive magnet 32 on the upper conductive magnet 31 during a short circuit, and does not need a large-sized coil 442 to meet the retention force requirements, thereby meeting the requirements of lightweight relays.
- the upper conductive magnet 31 provided in this embodiment is provided with a fixed mounting foot 311, which is configured to be fixedly connected to the top inner wall of the insulating cover 11, so that a gap 312 is provided between the upper conductive magnet 31 and the top inner wall of the insulating cover 11.
- the upper conductive magnet 31 is provided with a fixed mounting foot 311 so that the entire upper conductive magnet 31 does not fit into the top inner part of the insulating cover 11.
- the gap 312 between the upper conductive magnet 31 and the top inner wall of the insulating cover 11 is utilized to increase the creepage distance between the two static contact lead-out terminals 21 to ensure the insulation creepage distance requirement.
- the insulating cover 11 is a ceramic cover, and a metallized area is provided on the top inner wall of the ceramic cover corresponding to the fixed mounting foot 311, and the fixed mounting foot 311 is welded to the ceramic cover through the metallized area.
- a metallized area is provided on the top inner wall of the insulating cover 11 corresponding to the fixed mounting foot 311 to achieve regional metallization of the portion of the insulating cover 11 corresponding to the fixed mounting foot 311, thereby reducing welding stress and ensuring the fixing effect between the fixed mounting foot 311 and the insulating cover 11.
- the movable spring piece 22 can be in a straight shape, and along the length direction of the movable spring piece 22, under the action of the driving assembly 4, the two ends of the movable spring piece 22 can respectively contact the two static contact lead-out terminals 21, thereby realizing the connection of the load.
- the bottom of the static contact lead-out terminal 21 serves as a static contact, and the two ends of the movable spring piece 22 along its length direction can serve as movable contacts.
- the movable contacts at both ends of the movable spring piece 22 can protrude from other parts of the movable spring piece 22, or can be flush with other parts.
- the static contact can be integrally or separately arranged at the bottom of the static contact lead-out end 21, and the moving contact can be integrally or separately arranged at both ends of the moving spring piece 22 along its length direction.
- Two static contact lead-out terminals 21 are arranged on the insulating cover 11, for example, on the top of the insulating cover 11. Moreover, one end of each static contact lead-out terminal 21 extends into the contact chamber of the insulating cover 11, and the other end protrudes from the outer surface of the shell. The end of the static contact lead-out terminal 21 extending into the contact chamber is used to contact the moving spring 22.
- the upper conductive magnet 31 is a straight-line structure, and the upper conductive magnet 31 extends along the width direction of the movable spring piece 22; and/or, the lower conductive magnet 32 is a U-shaped structure, and the opening of the lower conductive magnet 32 is arranged toward the movable spring piece 22, and the parts of the lower conductive magnet 32 located on both sides of the width direction of the movable spring piece 22 can abut against the upper conductive magnet 31.
- the upper conductive magnet 31 By setting the upper conductive magnet 31 to be a straight-line structure, the upper conductive magnet 31 is correspondingly set at a position between the two moving contacts of the moving spring piece 22, that is, directly above the push rod unit 41.
- the upper conductive magnet 31 extends along the width direction of the moving spring piece 22 to match and correspond to the upper conductive magnet 31 and the lower conductive magnet 32.
- the opening of the lower conductive magnet 32 is set toward the moving spring piece 22, so that the two side arms of the lower conductive magnet 32 extend in the direction of the upper conductive magnet 31, so that the two side arms of the upper conductive magnet 31 can be close to or contact each other with the two ends of the upper conductive magnet 31, respectively, so as to form a surrounding magnetic conductive ring along the width of the moving spring piece 22.
- the surrounding magnetic conductive ring formed along the width direction of the moving spring piece 22 will not interfere, and when a large fault current occurs in the moving spring piece 22, an electromagnetic attraction in the pressure direction of the moving contact is generated to resist the electric repulsion generated by the fault current between the moving spring piece 22 and the static contact lead-out terminal 21.
- the relay of the embodiment of the present disclosure may include a shell, and the contact container 1, the contact assembly 2, the anti-short circuit assembly 3 and the drive assembly 4 are arranged in the shell, and the shell plays the role of containing and protecting.
- the shell may also not be included, and these components may be assembled and directly installed in the application product, such as a battery pack or an electrical control box.
- the housing has a hollow chamber which is communicated with the outside of the housing.
- the contact container 1 is disposed in the hollow chamber and includes an insulating cover 11 and a yoke plate 12 which enclose a contact chamber.
- the movable spring piece 22 and the lower conductive magnet 32 form a movable member, and the movable member and the push rod unit 41 cooperate with each other through the limiting protrusion 413 and the limiting hole 422. Under the mutual cooperation of the limiting protrusion 413 and the limiting hole 422, the moving force of the push rod unit 41 can be transmitted to the movable member, so that the movable spring piece 22 is used to contact or separate with a pair of static contact lead-out terminals 21.
- the movable component also includes a support portion 42, which is fixedly connected to the lower conductive magnet 32.
- the support portion 42 is arranged between the push rod unit 41 and the lower conductive magnet 32.
- the push rod unit 41 and the support portion 42 cooperate with each other through the limiting protrusion 413 and the limiting hole 422 to drive the movable spring 22 to move.
- the limiting hole 422 can be a through hole structure, or a blind hole structure, or a groove structure, etc.
- the support part 42 is disposed between the push rod unit 41 and the lower conductive magnet 32, and the support part 42 serves as an intermediate connection between the push rod 411 assembly and the lower conductive magnet 32.
- the support part 42 is fixedly connected to the lower conductive magnet 32, and serves to carry the lower conductive magnet 32, so as to ensure the supporting effect of the lower conductive magnet 32.
- the moving force of the push rod unit 41 can be transmitted to the support part 42, which is used to drive the moving spring piece 22 to move, so that the moving spring piece 22 can be used to contact or separate with a pair of static contact lead-out terminals 21.
- a first connecting hole is provided in the movable spring piece 22
- a second connecting hole is provided in the lower conductive magnet 32 corresponding to the first connecting hole
- a third connecting hole is provided in the support portion 42 corresponding to the second connecting hole
- the connecting member 5 is specifically a bolt, a rivet, a connecting pin, etc. The connecting member 5 is respectively passed through the first connecting hole, the second connecting hole and the third connecting hole to ensure the connection stability between the movable spring piece 22, the lower conductive magnet 32 and the support portion 42.
- the driving assembly 4 further includes an elastic member 43, which is disposed between the support portion 42 and the push rod unit 41, and one end of the elastic member 43 abuts against the push rod unit 41, and the other end abuts against the movable member. Specifically, the other end of the elastic member 43 abuts against the support portion 42, or the other end of the elastic member 43 passes through the support portion 42 and abuts against the lower conductive magnet 32.
- the elastic member 43 is specifically a component with elasticity and reset function, such as a spring. If one end of the elastic member 43 abuts against the push rod unit 41 and the other end abuts against the movable component, the push rod unit 41 pushes the lower conductive magnet 32 to move in a direction close to the upper conductive magnet 31 through the support portion 42 and the elastic member 43; if one end of the elastic member 43 abuts against the push rod unit 41 and the other end passes through the support portion 42 and abuts against the lower conductive magnet 32, a through hole is provided in the middle of the support portion 42, and a mounting groove is provided at the bottom of the lower conductive magnet 32, so that the other end of the elastic member 43 passes through the through hole and is fixed in the mounting groove, the push rod unit 41 can push the lower conductive magnet 32 to move in a direction close to the upper conductive magnet 31 through the elastic member 43.
- the push rod unit 41 includes a push rod 411 and a mounting seat 412.
- the top of the push rod 411 is fixed to the mounting seat 412.
- the push rod 411 provides power for moving relative to the insulating cover 11, and the mounting seat 412 is used to install the spring.
- a positioning column and a positioning groove are arranged at the center of the mounting seat 412.
- the positioning groove is arranged around the positioning column.
- the positioning column is penetrated at the bottom of the elastic member 43 to realize the positioning of the elastic member 43 at the bottom of the radial direction.
- the positioning groove is used to accommodate the elastic member 43 to realize the positioning of the elastic member 43 at the bottom of the radial direction.
- a mounting groove is arranged at the bottom of the lower conductive magnet 32 to realize the positioning of the elastic member 43 at the top of the radial direction, thereby ensuring that the two ends of the elastic member 43 in the axial direction have a good positioning effect to avoid the occurrence of offset.
- the push rod 411 and the mounting seat 412 are an integrally formed structure, which is realized by an integral injection molding process, thereby reducing the number of parts assembly steps and lowering the production cost.
- the support portion 42 is a U-shaped bracket, and the open end of the U-shaped bracket is arranged toward the push rod unit 41.
- the U-shaped bracket is equivalent to a protective cover of the elastic member 43, and plays a protective role for the elastic member 43.
- the two side arms of the U-shaped bracket are used to limit the elastic member 43.
- the side arms of the U-shaped bracket and the push rod unit 41 are matched through the limiting protrusion 413 and the limiting hole 422.
- the two side arms of the U-shaped bracket play a role in limiting the elastic member 43, so as to prevent the elastic member 43 from being separated during the extrusion and reset process.
- the push rod unit 41 can pull the lower conductive magnet 32 to move through the U-shaped bracket.
- the two side arms of the U-shaped bracket extend along the moving direction of the push rod unit 41, that is, the two side arms of the U-shaped bracket have a certain height, so that the U-shaped bracket does not fit with the mounting seat 412, and there is a certain height space between the U-shaped bracket and the mounting seat 412, which provides a movable space for the compression or reset of the elastic member 43.
- one of the side arm of the U-shaped bracket and the push rod unit 411 is provided with a limiting protrusion 413.
- Another limiting hole 422 is provided, and the limiting hole 422 is used to limit the position of the limiting protrusion 413.
- a limiting protrusion 413 is provided on the outer wall of the mounting seat 412 of the push rod unit 41, and limiting holes 422 are provided on the two side arms of the support portion 42.
- the limiting protrusion 413 is at least partially provided in the limiting hole 422, and the limiting hole 422 serves to limit the limiting protrusion 413 up and down.
- a gap is provided between the limiting hole 422 and the limiting protrusion 413 along the moving direction of the push rod unit 41 .
- a gap is provided between the limiting hole 422 and the limiting protrusion 413 , and the gap is provided along the moving direction of the push rod unit 41 .
- the gap provides a movable space for the limiting protrusion 413 , and at the same time ensures that the support part 42 can move up and down, it also realizes the function of stopping the support part 42 .
- the elastic member 43 is in a pre-compression state, the support portion 42, the lower conductive magnet 32, and the movable spring piece 22 are riveted together, and under the driving action of the push rod unit 41, the support portion 42, the lower conductive magnet 32, and the movable spring piece 22 move synchronously, and at this time, the limiting protrusion 413 fits under the limiting hole 422, which is used for limiting the U-shaped bracket;
- the push rod unit 41 continues to move upward. Since the movable spring 22 has contacted the bottom ends of the two static contact lead-out terminals 21, the movable spring 22 cannot continue to move upward. The push rod unit 41 continues to move upward to achieve the overtravel of the contact. At this time, since the limiting protrusion 413 is in contact with the upper part of the limiting hole 422, the lower part of the limiting hole 422 and the limiting hole 422 located above provide movement space for the overtravel, so that the push rod unit 41 can continue to squeeze the elastic member 43.
- the elastic member 43 further provides an upward supporting force for the lower conductive magnet 32 to ensure the contact pressure, further avoid the movable spring 22 from being separated from the static contact lead-out terminal 21, and ensure the reliability of the contact between the movable spring 22 and the static contact lead-out terminal 21.
- This embodiment is similar to the first embodiment, and the only difference is the structure of the support portion 42 and the mounting seat 412. It should be particularly noted that in this embodiment, the limiting protrusion 413 is in contact with the upper limiting surface of the limiting hole 422 at the initial stage.
- Figure 6 shows a schematic diagram of the structure of the relay of the second embodiment of the present disclosure
- Figure 7 shows a top view of the relay of the second embodiment of the present disclosure
- Figure 8 shows a cross-sectional view of B-B in Figure 7
- Figure 9 shows an exploded view of the relay of the second embodiment of the present disclosure.
- the support portion 42 provided in this embodiment is a fixing plate, which is a planar structure.
- a through hole is provided at the center of the fixing plate, and the through hole provides an escape space for the elastic member 43.
- the upper end of the elastic member 43 passes through the through hole and abuts against the mounting groove of the lower conductive magnet 32.
- the fixing plate has two protrusions arranged opposite to each other, and a third connecting hole is provided in the protrusions.
- the connecting member 5 is respectively provided in the first connecting hole, the second connecting hole and the third connecting hole to achieve the fixation between the movable spring 22, the lower conductive magnet 32 and the fixing plate.
- the push rod unit 41 has a baffle 421 in the direction toward the support portion 42.
- the baffle plate 421 is used to limit the elastic member 43.
- the baffle plate 421 and the fixing plate are matched through the limiting protrusion 413 and the limiting hole 422.
- the planar structure of the fixed sheet causes its height to be relatively small.
- the baffle 421 plays a role in limiting the elastic member 43, thereby preventing the elastic member 43 from being separated during the extrusion and reset process.
- the push rod unit 41 can drive the fixed sheet and the lower conductive magnet 32 to move synchronously.
- the baffle 421 extends along the moving direction of the push rod unit 41, that is, the baffle 421 has a certain height, so that there is a certain height space between the fixed sheet and the mounting seat 412, providing a movable space for the compression or reset of the elastic member 43.
- one of the baffle 421 and the fixing plate is provided with a limiting protrusion 413
- the other is provided with a limiting hole 422
- the limiting hole 422 is used for limiting the position of the limiting protrusion 413 .
- the fixing plate is provided with a limiting protrusion 413 , and a limiting hole 422 is provided on the baffle 421 of the mounting seat 412 in the push rod unit 41 .
- the limiting protrusion 413 is at least partially disposed in the limiting hole 422 , and the limiting hole 422 is used to limit the limiting protrusion 413 .
- the two limiting protrusions 413 there are two limiting protrusions 413, the two limiting protrusions 413 are arranged opposite to each other, the two protrusions are arranged opposite to each other, the two limiting protrusions 413 and the two protrusions are arranged at intervals, and the angle between adjacent limiting protrusions 413 and the protrusions is 90°.
- This embodiment is similar to the first embodiment, the only difference being that the support portion 42 is not provided.
- the push rod unit 41 can still push or pull the movable member under the cooperation of the limiting protrusion 413 and the limiting hole 422 .
- the lower conductive magnet 32 provided in this embodiment includes a magnet body and two side plates, the two side plates are respectively arranged on both sides of the magnet body, and the push rod unit 41 has two baffles 421 facing the direction of the lower conductive magnet 32; wherein the baffles 421 and the side plates are correspondingly matched through the limiting protrusions 413 and the limiting holes 422.
- baffle 421 By setting a baffle 421 in the direction of the push rod unit 41 toward the lower conductive magnet 32, that is, the mounting seat 412 of the push rod unit 41 is provided with a baffle 421, the baffle 421 plays a role in limiting the elastic member 43, thereby preventing the elastic member 43 from being separated during the extrusion and reset process.
- the baffle 421 is connected to the side plate, and the push rod unit 41 can drive the side plate and the lower conductive magnet 32 to move synchronously.
- the baffle 421 extends along the moving direction of the push rod unit 41, that is, the baffle 421 has a certain height, so that there is a certain height space between the side plate and the mounting seat 412, providing a movable space for the compression or reset of the elastic member 43.
- the push rod unit 41 is directly connected to the movable component, which makes assembly easier and does not cause interference between the upper portion of the movable spring 22 and the upper conductive magnet 31 during the overtravel process.
- one of the baffle plate 421 and the side plate is provided with a limiting protrusion 413
- the other is provided with a limiting hole 422
- the limiting hole 422 is used to limit the limiting protrusion 413 .
- the side plate is provided with a limiting protrusion 413
- the baffle 421 of the mounting seat 412 in the push rod unit 41 is provided with a limiting hole 422
- the limiting protrusion 413 is at least partially disposed in the limiting hole 422, and the limiting hole 422 is used to limit the limiting protrusion 413. Limit the position.
- the driving assembly 4 further includes an electromagnet unit 44, which includes a coil frame 441, a coil 442 and a moving iron core 443.
- the coil frame 441 is in the shape of a hollow cylinder and is formed of an insulating material, and the coil 442 surrounds the coil frame 441.
- the moving iron core 443 is movably arranged in the center hole of the coil frame 441, and the moving iron core 443 is connected to the bottom end of the push rod unit 41. When the coil 442 is energized, the moving iron core 443 moves upward, and the moving iron core 443 drives the push rod unit 41 to move upward.
- the moving iron core 443 moves downward under the action of the reset spring, and the moving iron core 443 drives the push rod unit 41 to move downward.
- the moving iron core 443 and the push rod unit 41 can be connected by threaded connection, riveting, welding or other methods.
- the structure of this embodiment is similar to that of the first embodiment and the second embodiment, and the only difference is that the structure of the insulating cover 11 is different.
- the insulating cover 11 provided in this embodiment includes a ceramic plate 111 and an insulating support portion 112, and a metallized area is provided on one side of the ceramic plate 111 close to the upper conductive magnet 31.
- the insulating support portion 112 is located below the ceramic plate 111 and is used to support the ceramic plate 111.
- the ceramic plate 111 and the insulating support portion 112 are split structures.
- the ceramic plate 111 and the insulating support part 112 of the insulating cover 11 provided in this embodiment are split structures.
- the metallized area can be provided on the side of the ceramic plate 111 close to the upper conductive magnet 31, and then the ceramic plate 111 is provided on the insulating support part 112.
- the insulating support part 112 plays a role in supporting the ceramic plate 111 to ensure the supporting effect of the ceramic plate 111.
- the plate-like structure of the ceramic plate 111 is easier to process the metallized area, thereby better realizing the welding plane welded with the upper conductive magnet 31.
- a metallized portion is provided on a side of the ceramic plate 111 away from the upper conductive magnet 31 , and the metallized portion is used to connect the static contact lead-out terminal 21 .
- a metallized portion is provided on one side of the ceramic plate 111 away from the upper conductive magnet 31 , that is, a metallized portion is provided on the top of the ceramic plate 111 for brazing the two static contact lead terminals 21 , thereby ensuring the fixing effect of the static contact lead terminals 21 on the ceramic plate 111 .
- the ceramic board 111 is provided with a metallization structure corresponding to the insulating support portion 112 , and the metallization structure is used to connect at least a portion of the insulating support portion 112 .
- the ceramic plate 111 is provided with a metallization structure corresponding to the insulating support portion 112 , that is, a metallization treatment is performed on the bottom of the ceramic plate 111 for brazing at least a portion of the insulating support portion 112 , thereby ensuring a fixing effect between the insulating support portion 112 and the ceramic plate 111 .
- the insulating support portion 112 includes a frame 1121 and an insulating frame 1122.
- the frame 1121 is located below the ceramic board 111 and is used to support the ceramic board 111.
- the frame 1121 is connected to the metallized structure; the insulating frame 1122 is arranged in the frame 1121 and is connected to the ceramic board 111.
- the frame 1121 can also be called a frame sheet.
- the frame 1121 is arranged on the yoke iron plate 12.
- the yoke iron plate 12 plays a role in the surrounding
- the frame 1121 supports the function. Compared with the existing frame sheet, the height of the surrounding frame 1121 is relatively high, which is equivalent to the height increase.
- the surrounding frame 1121 is located below the ceramic plate 111, and plays the role of supporting the ceramic plate 111 to ensure the supporting effect of the ceramic plate 111. Since the inner wall of the ceramic plate 111 and the upper conductive magnet 31 are brazed, the surrounding frame 1121 also plays the role of supporting the upper conductive magnet 31.
- the insulating frame 1122 is arranged in the surrounding frame 1121, and the insulating frame 1122 is connected to the ceramic plate 111 to provide an insulating environment for the contact assembly 2 and the anti-short circuit assembly 3 inside the surrounding frame 1121.
- the metallization structure and the metallization area are located in the same horizontal plane.
- both sides of the ceramic plate 111 are metallized, a metallized portion is provided on the top surface of the ceramic plate 111, and a metallized structure and a metallized area are provided on the bottom surface of the ceramic plate 111.
- a metallized structure and a metallized area are provided on the bottom surface of the ceramic plate 111.
- the insulating frame 1122 is bonded to the ceramic board 111 .
- the metallized structure of the ceramic plate 111 is connected to the frame 1121, that is, the frame 1121 and the ceramic plate 111 are connected by brazing, there is no need to fix the insulating frame 1122 and the ceramic plate 111 by brazing.
- the top of the insulating frame 1122 and the ceramic plate 111 can be fixed by bonding with glue or the like, thereby achieving the purpose of reducing production costs.
- the structure of this embodiment is similar to that of the first embodiment, the second embodiment, and the third embodiment, and the only difference is that the structure of the insulating support portion 112 in the insulating cover 11 is different.
- the insulating support part 112 provided in this embodiment includes a ceramic frame 1123 and a surrounding frame 1121.
- One end of the ceramic frame 1123 is connected to the surrounding frame 1121, and the other end is connected to the metallized structure of the ceramic board 111.
- the surrounding frame 1121 supports the ceramic board 111.
- the ceramic plate 111 is directly welded to the ceramic frame 1123, and the ceramic frame 1123 is further welded to the surrounding frame 1121. Since the ceramic plate 111 is a sheet structure, a welding plane for welding with the upper conductive magnet 31 can be better realized.
- the enclosure 1121 can also be called a frame sheet.
- the enclosure 1121 is arranged on the yoke iron plate 12, and the yoke iron plate 12 plays a role in supporting the enclosure 1121.
- the height of the enclosure 1121 is relatively short, and the ceramic frame 1123 is located below the ceramic plate 111.
- One end of the ceramic frame 1123 is connected to the enclosure 1121, and the other end is connected to the metallized structure of the ceramic plate 111.
- the ceramic frame 1123 supports the ceramic plate 111 and ensures the supporting effect of the ceramic plate 111. Since the inner wall of the ceramic plate 111 is brazed with the upper conductive magnet 31, the ceramic frame 1123 also plays a role in supporting the upper conductive magnet 31.
- an insulating environment is provided for the contact assembly 2 and the anti-short circuit assembly 3 in the internal space of the ceramic frame 1123 and the ceramic plate 111.
- the terms “first”, “second”, and “third” are used for descriptive purposes only and are not to be understood as indicating or implying relative importance; “a pair” and “one” are only used to describe a pair or one and are not to be understood as only a pair or only one; the term “plurality” refers to two or more than two, unless otherwise expressly defined.
- the terms “installed”, “connected”, “connected”, “fixed”, etc. should be understood in a broad sense. For example, “connected” can be a fixed connection, a detachable connection, or an integral connection; “connected” can be a direct connection or an indirect connection through an intermediate medium.
- the above terms can be understood according to the specific circumstances. The specific meaning of the term in the embodiments of this disclosure.
- the description of the terms “one embodiment”, “some embodiments”, “specific embodiments”, etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the embodiments of the present disclosure.
- the schematic representation of the above terms does not necessarily refer to the same embodiment or example.
- the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.
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Abstract
一种继电器包括接触容器(1)、触点组件(2)和抗短路组件(3),接触容器(1)包括绝缘罩(11);触点组件(2)包括一动簧片(22)和一对静触点引出端(21),静触点引出端(21)至少部分伸入绝缘罩(11)内,动簧片(22)设置在绝缘罩(11)内;抗短路组件(3)包括上导磁铁(31)和下导磁铁(32),两者之间能够形成导磁回路,以在动簧片(22)出现故障大电流时产生吸力,用于抵抗动簧片(22)与静触点引出端(21)之间的电动斥力;上导磁铁(31)设置有与绝缘罩(11)的顶部内壁固定连接的固定安装脚(311),以使上导磁铁(31)和绝缘罩(11)的顶部内壁之间设置有缝隙(312)。
Description
本公开要求于2022年10月12日提交的申请号为202222687629.0、名称为“一种继电器”的中国专利申请的优先权,该中国专利申请的全部内容通过引用全部并入本文。
本公开涉及电力电器技术领域,具体而言,涉及一种继电器。
随着新能源汽车的续航里程要求提升,要求正常情况下高压直流继电器的热损耗减小,电池包短路时又因为电池容量更高,要求继电器抗短路电流、电压均进一步上升。当短路负载很大时,高压直流继电器触头会因为短路电流产生电动斥力而发生触头弹开,进而发生触点拉弧,由于负载短路电流及电压均很高,导致瞬间触头间剧烈燃弧。
现有技术通常是在动组件设置随动式抗短路环电磁结构,当短路电流在产生电动斥力时,利用抗短路环电磁结构中上导磁铁对下导磁铁产生了电磁吸力,并将下导磁铁与动触片固定在一起,从而保证动触头不弹开。由于动组件的支撑需要依靠动铁芯的保持力来支撑,而保持力是线圈通电产生的电磁力来保持,如果线圈功耗有限,保持力有限,用来支撑抗短路环的保持力也就有限。因此,当短路电流达到一定的预设值时,下导磁铁对上导磁铁也会产生一个电磁吸力,当铁芯的保持力无法支持下轭铁对上导磁铁的电磁吸力时,依然要发生触头弹开。
为了解决这个问题,现有只能将线圈的尺寸做大,以提高动铁芯的保持力,但是尺寸较大的线圈就会增大继电器的整体体积,不利于继电器轻量化的需求。
实用新型内容
本公开实施例提供一种继电器,满足安全性和轻量化的需求。
根据本公开的一个方面,提供了一种继电器,包括:
接触容器,包括绝缘罩;
触点组件,包括一动簧片和一对静触点引出端,所述静触点引出端设置在所述绝缘罩上,所述静触点引出端至少部分伸入所述绝缘罩内,所述动簧片设置在所述绝缘罩内,所述动簧片用于与一对所述静触点引出端接触或分离;
抗短路组件,包括上导磁铁和下导磁铁,所述上导磁铁设置于所述绝缘罩的顶部内壁,所述下导磁铁固定于所述动簧片的底部,所述上导磁铁和所述下导磁铁用于形成导磁回路,以在所述动簧片出现故障大电流时产生吸力,用于抵抗所述动簧片与所述静触点引出端之间的电动斥力;
其中,所述上导磁铁设置有固定安装脚,所述固定安装脚与所述绝缘罩的顶部内壁固定连接,以使所述上导磁铁和所述绝缘罩的顶部内壁之间设置有缝隙。
根据本公开的一个实施例,所述绝缘罩为陶瓷罩,所述陶瓷罩的顶部内壁对应所述固定安装脚的位置设置有金属化区,所述固定安装脚通过所述金属化区与所陶瓷罩焊接。
根据本公开的一个实施例,所述继电器还包括驱动组件,所述驱动组件包括推杆单元,所述推杆单元能够驱动所述动簧片向靠近所述静触点引出端的方向移动;
其中,所述动簧片与所述下导磁铁形成可动构件,所述可动构件和所述推杆单元通过限位凸起和限位孔配合。
根据本公开的一个实施例,所述下导磁铁包括磁铁主体和两个侧板,两个所述侧板分别设置于所述磁铁主体的两侧,所述推杆单元朝向所述支撑部的方向设置有两个挡板;其中,所述挡板和所述侧板通过限位凸起和限位孔配合。
根据本公开的一个实施例,所述可动构件还包括支撑部,所述支撑部设置于所述推杆单元和所述下导磁铁之间,所述支撑部所述下导磁铁固定连接,所述推杆单元和所述支撑部通过所述限位凸起和所述限位孔配合,用于驱动所述动簧片移动。
根据本公开的一个实施例,所述驱动组件还包括弹性件,所述弹性件的一端抵接于所述推杆单元,另一端抵接于所述可动构件。
根据本公开的一个实施例,所述支撑部为U形支架,所述U形支架的开口端朝向所述推杆单元设置,所述U形支架的两个侧臂用于限位所述弹性件;
其中,所述U形支架的所述侧臂和所述推杆单元通过限位凸起和限位孔配合。
根据本公开的一个实施例,所述支撑部为固定片,所述推杆单元朝向所述支撑部的方向设置有挡板,所述挡板用于限位所述弹性件;
其中,所述挡板和所述固定片通过限位凸起和限位孔配合。
根据本公开的一个实施例,所述上导磁铁为一字型结构,所述上导磁铁沿所述动簧片的宽度方向延伸;和/或,
所述下导磁铁为U形结构,所述下导磁铁的开口朝向所述动簧片设置,所述下导磁铁位于所述动簧片的宽度方向两侧的部分能够抵接于所述上导磁铁。
根据本公开的一个实施例,所述绝缘罩包括:
陶瓷板,所述陶瓷板靠近所述上导磁铁的一侧设置有所述金属化区;
绝缘支撑部,位于所述陶瓷板的下方,用于承载所述陶瓷板;
其中,所述陶瓷板和所述绝缘支撑部为分体式结构。
根据本公开的一个实施例,所述陶瓷板远离所述上导磁铁的一侧设置有金属化部,所述金属化部用于连接所述静触点引出端。
根据本公开的一个实施例,所述陶瓷板对应所述绝缘支撑部设置有金属化结构,所述金属化结构用于连接至少部分所述绝缘支撑部。
根据本公开的一个实施例,所述绝缘支撑部包括:
围框,位于所述陶瓷板的下方,用于承载所述陶瓷板,所述围框连接于所述金属化结构;
绝缘框,设置于所述围框内,所述绝缘框连接于所述陶瓷板。
根据本公开的一个实施例,所述绝缘框粘接于所述陶瓷板。
根据本公开的一个实施例,所述绝缘支撑部包括陶瓷框和围框,所述陶瓷框的一端连接于所述围框,另一端连接于所述陶瓷板的所述金属化结构,所述围框承载所述陶瓷板。
根据本公开的一个实施例,所述金属化结构和所述金属化区位于同一水平面内。
本公开中的一个实施例至少具有如下优点或有益效果:
本公开实施例的继电器,通过接触容器包括绝缘罩,静触点引出端设置在绝缘罩上,绝缘罩为静触点引出端提供固定位置,通过动簧片设置在绝缘罩内,静触点引出端至少部分伸入绝缘罩内,绝缘罩为触点组件的动簧片和至少部分静触点引出端提供绝缘环境。通过动簧片用于与一对静触点引出端接触或分离,当动簧片和一对静触点引出端底部的静触点相接触时,实现电流从一个静触点引出端流入,经过动簧片后从另一个静触点引出端流出,从而实现连通负载。
通过下导磁铁位于动簧片的下方,下导磁铁可以和动簧片一起向靠近静触点引出端的方向移动,在动簧片和静触点引出端相接触后,动簧片不能再继续向上移动。下导磁铁能够向靠近上导磁铁的方向移动,使上导磁铁和下导磁铁之间能够形成导磁回路,在动簧片出现故障大电流时,通过设置上导磁铁位于动簧片的上方,下导磁铁位于动簧片的下方,相当于动簧片夹设于上导磁铁和下导磁铁两个磁铁之间,当上导磁铁对下导磁铁产生吸力,该吸力起到吸引和拉动动簧片的作用,并用于抵抗动簧片与静触点引出端之间因故障电流产生的电动斥力,避免动簧片和静触点引出端之间出现相互脱开而导致拉弧***的情况,保证动簧片和静触点引出端接触的可靠性和安全性。
通过上导磁铁设置于绝缘罩的顶部内壁,即上导磁铁固定于绝缘罩内腔上方的固定位置,使抗短路组件中上导磁铁和下导磁铁形成导磁回路并产生的电磁吸力,由作用在驱动组件上转移到固定静止的位置上,消除了动铁芯脱开,继电器在强电弧作用下烧毁、***的风险。此时,上导磁铁采用固定式结构,绝缘罩起到承载上导磁铁的作用,使驱动组件无需承担上短路时下导磁铁对上导磁铁的吸力,无需尺寸较大的线圈就能满足保持力的需求,从而满足继电器轻量化的需求。
通过上导磁铁设置有固定安装脚,使上导磁铁的整体并没有与绝缘罩的顶部内部相贴合,利用上导磁铁和绝缘罩的顶部内壁之间的缝隙,起到增大两个静触点引出端之间爬电距离的作用,以保证绝缘爬电距离要求。
通过参照附图详细描述其示例实施方式,本公开的上述和其它特征及优点将变得更加明显。
图1示出的是本公开第一实施例的继电器的结构示意图;
图2示出的是本公开第一实施例的继电器的俯视图;
图3示出的是图2中A‐A的剖视图;
图4示出的是本公开第一实施例的继电器的***图;
图5示出的是本公开第一实施例的继电器工作状态示意图;
图6示出的是本公开第二实施例的继电器的结构示意图;
图7示出的是本公开第二实施例的继电器的俯视图;
图8示出的是图7中B‐B的剖视图;
图9示出的是本公开第二实施例的继电器的***图;
图10示出的是本公开第三实施例的继电器的剖视图;
图11示出的是本公开第三实施例的继电器的结构示意图;
图12示出的是本公开第三实施例的继电器的***图;
图13示出的是本公开第四实施例的继电器的结构示意图;
图14示出的是本公开第四实施例的继电器的俯视图;
图15示出的是图13中C‐C的剖视图;
图16示出的是本公开第四实施例的继电器的***图;
图17示出的是本公开第五实施例的继电器的结构示意图;
图18示出的是本公开第五实施例的继电器的俯视图;
图19示出的是图18中D‐D的剖视图;
图20示出的是本公开第五实施例的继电器的***图。
其中,附图标记说明如下:
1、接触容器;2、触点组件;3、抗短路组件;4、驱动组件;5、连接件;
11、绝缘罩;111、陶瓷板;112、绝缘支撑部;1121、围框;1122、绝缘框;1123、陶瓷框;12、轭铁板;
21、静触点引出端;22、动簧片;
31、上导磁铁;311、固定安装脚;312、缝隙;32、下导磁铁;
41、推杆单元;411、推杆;412、安装座;413、限位凸起;
42、支撑部;421、挡板;422、限位孔;
43、弹性件;
44、电磁铁单元;441、线圈架;442、线圈;443、动铁芯。
现在将参考附图更全面地描述示例实施方式。然而,示例实施方式能够以多种形式实施,且不应被理解为限于在此阐述的实施方式;相反,提供这些实施方式使得本公开
将全面和完整,并将示例实施方式的构思全面地传达给本领域的技术人员。图中相同的附图标记表示相同或类似的结构,因而将省略它们的详细描述。
实施例一
如图1‐图4所示,图1示出的是本公开第一实施例的继电器的结构示意图;图2示出的是本公开第一实施例的继电器的俯视图;图3示出的是图2中A‐A的剖视图;图4示出的是本公开第一实施例的继电器的***图。
本实施例提供了一种继电器,继电器包括接触容器1、触点组件2、抗短路组件3,接触容器1包括绝缘罩11,触点组件2包括动簧片22和一对静触点引出端21,静触点引出端21设置在绝缘罩11上,静触点引出端21至少部分伸入绝缘罩11内,动簧片22设置在绝缘罩11内,动簧片22用于与一对静触点引出端21接触或分离。
本公开实施例的继电器,通过接触容器1包括绝缘罩11,静触点引出端21设置在绝缘罩11上,绝缘罩11为静触点引出端21提供固定位置,通过动簧片22设置在绝缘罩11内,静触点引出端21至少部分伸入绝缘罩11内,绝缘罩11为触点组件2的动簧片22和至少部分静触点引出端21提供绝缘环境。通过动簧片22用于与一对静触点引出端21接触或分离,当动簧片22和一对静触点引出端21底部的静触点相接触时,实现电流从一个静触点引出端21流入,经过动簧片22后从另一个静触点引出端21流出,从而实现连通负载。
当短路负载很大时,在短路电流的作用下,动簧片22与静触点引出端21之间会产生电动斥力而发生触头弹开,导致触点拉弧并剧烈燃烧,甚至可能会出现***的情况。为此,本实施例提供的继电器还包括抗短路组件3,抗短路组件3包括上导磁铁31和下导磁铁32,下导磁铁32固定于动簧片22的底部,上导磁铁31和下导磁铁32用于形成导磁回路,以在动簧片22出现故障大电流时产生吸力,用于抵抗动簧片22与静触点引出端21之间的电动斥力。上导磁铁31和下导磁铁32可以采用铁、钴、镍及其合金等材料制作而成。
通过下导磁铁32固定于动簧片22的下方,下导磁铁32可以和动簧片22一起向靠近静触点引出端21的方向移动。下导磁铁32能够向靠近上导磁铁31的方向移动,使上导磁铁31和下导磁铁32之间能够形成导磁回路,在动簧片22出现故障大电流时,通过设置上导磁铁31位于动簧片22的上方,下导磁铁32位于动簧片22的下方,相当于动簧片22夹设于上导磁铁31和下导磁铁32两个磁铁之间,当上导磁铁31对下导磁铁32产生吸力,该吸力起到吸引和拉动动簧片22的作用,并用于抵抗动簧片22与静触点引出端21之间因故障电流产生的电动斥力,避免动簧片22和静触点引出端21之间出现相互脱开而导致拉弧***的情况,保证动簧片22和静触点引出端21接触的可靠性和安全性。
需要说明的是,继电器还包括驱动组件4,驱动组件4包括推杆单元41,推杆单元41能够驱动抗短路组件3相对于绝缘罩11向靠近静触点引出端21的方向移动。推杆单
元41部分设置于绝缘罩11内并相对于绝缘罩11移动设置,推杆单元41为动簧片22提供动力,推动动簧片22移动,从而实现动簧片22和静触点引出端21的接触和分离。
如果上导磁铁31和下导磁铁32均为活动设置,那么上导磁铁31和下导磁铁32需要依靠驱动组件4的保持力来进行支撑,如果保持力无法支撑下导磁铁32对上导磁铁31的吸力,则会出现上导磁铁31和下导磁铁32下落依然导致动簧片22和静触点引出端21脱离的情况。现有采用增加驱动组件4的线圈442尺寸以达到增加保持力的目的,但是尺寸较大的线圈442难以满足轻量化的需求。
为此,如图3‐图4所示,本实施例提供的继电器,上导磁铁31设置于绝缘罩11的顶部内壁。
通过上导磁铁31设置于绝缘罩11的顶部内壁,即上导磁铁31固定于绝缘罩11内腔上方的固定位置,使抗短路组件3中上导磁铁31和下导磁铁32形成导磁回路并产生的电磁吸力,由作用在驱动组件4上转移到固定静止的位置上,消除了动铁芯443脱开,继电器在强电弧作用下烧毁、***的风险。此时,上导磁铁31采用固定式结构,绝缘罩11起到承载上导磁铁31的作用,使驱动组件4无需承担短路时下导磁铁32对上导磁铁31的吸力,无需尺寸较大的线圈442就能满足保持力的需求,从而满足继电器轻量化的需求。
如果上导磁铁31和绝缘罩11的顶部内壁直接焊接,会产生较大的焊接应力,且上导磁铁31和绝缘罩11的顶部内壁直接贴合,那么上导磁铁31和静触点引出端21之间的距离比较近,难以保证耐压和安距的需求。为此,本实施例提供的上导磁铁31设置有固定安装脚311,固定安装脚311被配置为与绝缘罩11顶部内部固定连接,使上导磁铁31和绝缘罩11的顶部内壁之间设置有缝隙312。
通过上导磁铁31设置有固定安装脚311,使上导磁铁31的整体并没有与绝缘罩11的顶部内部相贴合,利用上导磁铁31和绝缘罩11的顶部内壁之间的缝隙312,起到增大两个静触点引出端21之间爬电距离的作用,以保证绝缘爬电距离要求。
在一个实施例中,绝缘罩11为陶瓷罩,陶瓷罩顶部内壁对应固定安装脚311设置有金属化区,固定安装脚311通过金属化区与所陶瓷罩相焊接。
通过绝缘罩11顶部内壁对应固定安装脚311设置有金属化区,以实现绝缘罩11对应固定安装脚311的部分进行区域金属化,减少焊接应力,保证固定安装脚311和绝缘罩11之间的固定效果。
其中,动簧片22可以为直片形,且沿着动簧片22的长度方向,在驱动组件4的作用下,动簧片22的两端能够分别与两个静触点引出端21接触,从而实现连通负载。静触点引出端21的底部作为静触点,动簧片22沿其长度方向的两端可以作为动触点。动簧片22两端的动触点可以凸出于动簧片22的其他部分,也可以是与其他部分齐平。
可以理解的是,静触点可以是一体或分体地设置在静触点引出端21的底部,动触点可以是一体或分体地设置在动簧片22沿其长度方向的两端。
两个静触点引出端21设置在绝缘罩11上,例如设置在绝缘罩11的顶部。并且,每个静触点引出端21的一端伸入绝缘罩11的接触腔室内,另一端凸出于外壳的外表面。静触点引出端21伸入接触腔室内部的一端用于与动簧片22相接触。
在本实施例中,如图3‐图4所示,上导磁铁31为一字型结构,上导磁铁31沿动簧片22的宽度方向延伸;和/或,下导磁铁32为U形结构,下导磁铁32的开口朝向动簧片22设置,下导磁铁32位于动簧片22宽度方向的两侧的部分能够抵接于上导磁铁31。
通过设置上导磁铁31为一字型结构,上导磁铁31对应设置于动簧片22的两个动触点之间的位置,即位于推杆单元41的正上方,通过上导磁铁31沿动簧片22的宽度方向延伸,用于上导磁铁31和下导磁铁32的匹配和对应。
通过设置下导磁铁32为U形结构,下导磁铁32的开口朝向动簧片22设置,使下导磁铁32的两个侧臂向上导磁铁31的方向延伸,从而上导磁铁31的两个侧臂能够分别与上导磁铁31的两端相互靠近或者相互接触,以在动簧片22上沿其宽度形成一个环绕的导磁环。由于动簧片22沿其长度方向的两端为动触点,沿动簧片22宽度方向形成的环绕导磁环不会出现干涉,在动簧片22出现故障大电流时,产生动触点压力方向上的电磁吸力,以抵抗动簧片22与静触点引出端21之间因故障电流产生的电动斥力。
需要说明的是,本公开实施例的继电器可以包括外壳,接触容器1、触点组件2、抗短路组件3和驱动组件4设置于外壳内,外壳起到容纳和保护的作用,也可以不包括外壳,而是这些组件组装后直接安装在应用产品中,例如电池包、电气控制盒。
需要说明的是,外壳具有中空腔室,中空腔室与外壳的外部连通。接触容器1设置在中空腔室内,接触容器1包括绝缘罩11和轭铁板12,绝缘罩11和轭铁板12围成一个接触腔室。
在一个实施例中,动簧片22与下导磁铁32形成可动构件,可动构件和推杆单元41通过限位凸起413和限位孔422配合。在限位凸起413和限位孔422的相互配合作用下,推杆单元41的移动作用力可以传递至可移动构件,便于动簧片22用于与一对静触点引出端21接触或分离。
在本实施例中,如图3‐图4所示,可动构件还包括支撑部42,支撑部42固定连接于下导磁铁32,支撑部42设置于推杆单元41和下导磁铁32之间,推杆单元41和支撑部42通过限位凸起413和限位孔422配合,用于驱动动簧片22移动。
需要特别说明的是,限位孔422可以是通孔结构,也可以是盲孔结构或者凹槽结构等。
通过支撑部42设置于推杆单元41和下导磁铁32之间,支撑部42起到推杆411组件和下导磁铁32之间中间连接的作用,通过支撑部42固定连接于下导磁铁32,起到承载下导磁铁32的作用,以保证下导磁铁32的支撑效果。在限位凸起413和限位孔422的相互配合作用下,推杆单元41的移动作用力可以传递至支撑部42,用于驱动动簧片22移动,便于动簧片22用于与一对静触点引出端21接触或分离。
需要说明的是,在动簧片22设置有第一连接孔,下导磁铁32对应第一连接孔设置有第二连接孔,支撑部42对应第二连接孔设置有第三连接孔,连接件5具体为螺栓或者铆钉或者连接销等,连接件5分别穿设于第一连接孔、第二连接孔及第三连接孔,保证动簧片22、下导磁铁32及支撑部42之间的连接稳定性。
在本实施例中,如图3‐图4所示,驱动组件4还包括弹性件43,弹性件43设置于支撑部42和推杆单元41之间,弹性件43的一端抵接于推杆单元41,另一端抵接于可动构件。具体地,弹性件43的另一端抵接于支撑部42,或弹性件43的另一端穿过支撑部42并抵接于下导磁铁32。
弹性件43具体为弹簧等具有弹性和复位作用的部件,如果弹性件43的一端抵接于推杆单元41,另一端抵接于可动构件,推杆单元41通过支撑部42和弹性件43推动下导磁铁32向靠近上导磁铁31的方向移动;如果弹性件43的一端抵接于推杆单元41,另一端穿过支撑部42并抵接于下导磁铁32,在支撑部42的中部设置有通孔,下导磁铁32的底部设置有安装槽,使弹性件43的另一端穿过通孔后并固定于安装槽内,推杆单元41可以通过弹性件43推动下导磁铁32向靠近上导磁铁31的方向移动。
在本实施例中,如图3‐图4所示,推杆单元41包括推杆411和安装座412,推杆411的顶部和安装座412相固定,推杆411提供相对于绝缘罩11移动的动力,安装座412用于安装弹簧。具体地,安装座412的中心设置有定位柱和定位槽,定位槽环设于定位柱的周围,定位柱穿设于弹性件43的底部,实现弹性件43沿其径向方向底部的定位,定位槽用于容置弹性件43,实现弹性件43沿其径向方向底部的定位。与此同时,在下导磁铁32的底部设置有安装槽,实现弹性件43沿其径向方向顶部的定位,从而保证弹性件43轴向方向的两端具有良好的定位效果,避免出现偏移的情况。
需要特别说明的是,推杆411和安装座412为一体成型结构,采用一体注塑的工艺实现,减少零件组装的环节,降低生产成本。
在本实施例中,如图3‐图4所示,支撑部42为U形支架,U形支架的开口端朝向推杆单元41设置。采用这种方式,U形支架相当于弹性件43的保护罩,起到弹性件43的防护作用。
在本实施例中,U形支架的两个侧臂用于限位弹性件43。其中,U形支架的侧臂和推杆单元41通过限位凸起413和限位孔422配合。
具体地,U形支架的两个侧臂起到对弹性件43限位的作用,避免弹性件43在挤压和复位过程中出现脱离的情况。通过U形支架的侧臂和推杆单元41通过限位凸起413和限位孔422配合,推杆单元41能够通过U形支架拉动下导磁铁32移动。同时,U形支架的两个侧臂沿推杆单元41的移动方向延伸,即U形支架的两个侧臂具有一定的高度,使U形支架并没有与安装座412相贴合,U形支架和安装座412之间存在一定的高度空间,为弹性件43的压缩或复位提供活动空间。
可以理解的是,U形支架的侧臂和推杆单元411中其中一个设置有限位凸起413,
另一个设置有限位孔422,限位孔422用于限位凸起413的限位。
具体地,在推杆单元41的安装座412的外壁凸设有限位凸起413,在支撑部42的两个侧臂设置有限位孔422,限位凸起413至少部分设置于限位孔422,限位孔422起到对限位凸起413进行上下限位的作用。
在本实施例中,沿推杆单元41的移动方向,限位孔422和限位凸起413之间设置有间隙。
通过限位孔422和限位凸起413之间设置有间隙,间隙沿推杆单元41的移动方向设置,间隙为限位凸起413提供活动空间,在保证支撑部42能够上下移动的同时,还实现对支撑部42止位的作用。
如图5所示,本实施例提供的继电器的工作过程如下:
在初始安装时,弹性件43处于预压缩状态,支撑部42、下导磁铁32、动簧片22铆接于一起,在推杆单元41的驱动作用下,支撑部42、下导磁铁32及动簧片22同步移动,此时限位凸起413与限位孔422的下方相贴合,用于U形支架的限位;
在推杆单元41移动到合适的位置时,动簧片22两端的动触点与两个静触点引出端21分别相接触;
随后,推杆单元41继续向上移动,由于动簧片22已经与两个静触点引出端21的底端相接触,动簧片22无法继续向上移动,推杆单元41继续向上移动,实现触点的超行程,此时由于限位凸起413与限位孔422的上方相贴合,限位孔422的下方和位于上方的限位孔422之间为超行程提供移动的空间,使推杆单元41能够继续挤压弹性件43,弹性件43进一步为下导磁铁32提供向上的支撑力,保证触点压力,进一步避免动簧片22相对于静触点引出端21脱离的情况,保证动簧片22和静触点引出端21相互接触的可靠性。
实施例二
本实施例和实施例一类似,区别仅在于支撑部42和安装座412的结构不同。需要特别说明的是,本实施例在初始时限位凸起413与限位孔422中位于上方的限位面相接触。
如图6‐图9所示,图6示出的是本公开第二实施例的继电器的结构示意图;图7示出的是本公开第二实施例的继电器的俯视图;图8示出的是图7中B‐B的剖视图;图9示出的是本公开第二实施例的继电器的***图。
本实施例提供的支撑部42为固定片,固定片为平面结构,固定片的中心设置有通孔,通孔为弹性件43提供避让空间,弹性件43的上端穿过通孔并抵接于下导磁铁32的安装槽内。固定片具有两个相对设置的凸出部,在凸出部设置有第三连接孔,连接件5分别穿设于第一连接孔、第二连接孔及第三连接孔,以实现动簧片22、下导磁铁32及固定片之间的固定。
在本实施例中,如图8‐图9所示,推杆单元41朝向支撑部42的方向有挡板421,
挡板421用于限位弹性件43。其中,挡板421和固定片通过限位凸起413和限位孔422配合。
如果支撑部42为固定片,固定片的平面结构导致其高度比较小,通过设置推杆单元41朝向支撑部42的方向有挡板421,即推杆单元41的安装座412设置有挡板421,挡板421起到对弹性件43限位的作用,避免弹性件43在挤压和复位过程中出现脱离的情况。通过挡板421连接于固定片,推杆单元41能够驱动固定片和下导磁铁32同步移动。同时,挡板421沿推杆单元41的移动方向延伸,即挡板421具有一定的高度,使固定片和安装座412之间存在一定的高度空间,为弹性件43的压缩或复位提供活动空间。
可以理解的是,挡板421和固定片中其中一个设置有限位凸起413,另一个设置有限位孔422,限位孔422用于限位凸起413的限位。
具体地,固定片设置有限位凸起413,在推杆单元41中安装座412的挡板421设置有限位孔422,限位凸起413至少部分设置于限位孔422,限位孔422用于对限位凸起413进行限位。
需要特别说明的是,限位凸起413的数量为两个,两个限位凸起413相对设置,两个凸出部相对设置,两个限位凸起413和两个凸出部间隔设置,相邻限位凸起413和凸出部之间的夹角为90°。
实施例三
本实施例和实施例一类似,区别仅在于没有设置支撑部42,依然能够实现在限位凸起413和限位孔422配合作用下,实现推杆单元41对可动构件的推动或拉动。
如图10‐图11所示,本实施例提供的下导磁铁32包括磁铁主体和两个侧板,两个侧板分别设置于磁铁主体的两侧,推杆单元41朝向下导磁铁32的方向有两个挡板421;其中,挡板421和侧板对应通过限位凸起413和限位孔422配合。
通过设置推杆单元41朝向下导磁铁32的方向有挡板421,即推杆单元41的安装座412设置有挡板421,挡板421起到对弹性件43限位的作用,避免弹性件43在挤压和复位过程中出现脱离的情况。通过挡板421连接于侧板,推杆单元41能够驱动侧板和下导磁铁32同步移动。同时,挡板421沿推杆单元41的移动方向延伸,即挡板421具有一定的高度,使侧板和安装座412之间存在一定的高度空间,为弹性件43的压缩或复位提供活动空间。
可以理解的是,推杆单元41直接与可动构件相连接,装配更简单,且在超行程过程中动簧片22上方与上导磁铁31之间不会产生干涉。
可以理解的是,挡板421和侧板中其中一个设置有限位凸起413,另一个设置有限位孔422,限位孔422用于限位凸起413的限位。
具体地,侧板设置有限位凸起413,在推杆单元41中安装座412的挡板421设置有限位孔422,限位凸起413至少部分设置于限位孔422,限位孔422用于对限位凸起413
进行限位。
其中,如图10‐图12所示,驱动组件4还包括电磁铁单元44,电磁铁单元44包括线圈架441、线圈442和动铁芯443。线圈架441呈中空筒状,且采用绝缘材料形成,线圈442环绕线圈架441上。动铁芯443可移动地设置在线圈架441的中心孔内,动铁芯443与推杆单元41的底端相连接,当线圈442通电时动铁芯443向上运动,动铁芯443带动推杆单元41向上移动,当线圈442断开电流时,动铁芯443受复位弹簧的作用向下运动,动铁芯443则带动推杆单元41向下移动。动铁芯443与推杆单元41可以采用螺纹连接、铆接、焊接或其他方式连接。
实施例四
本实施例和实施例一和实施例二的结构类似,区别仅在于,绝缘罩11的结构不同。
如图13‐图16所示,本实施例提供的绝缘罩11包括陶瓷板111和绝缘支撑部112,陶瓷板111靠近上导磁铁31的一侧设置有金属化区。绝缘支撑部112位于陶瓷板111的下方,用于承载陶瓷板111。其中,陶瓷板111和绝缘支撑部112为分体式结构。
由于需要在绝缘罩11顶部的内壁设置有金属化区,如果绝缘罩11为开口向下的罩体,操作人员需要从开口端伸入绝缘罩11内才能进行金属化处理。本实施例提供的绝缘罩11陶瓷板111和绝缘支撑部112,陶瓷板111和绝缘支撑部112为分体式结构,可以先在陶瓷板111靠近上导磁铁31的一侧设置有金属化区之后,再将陶瓷板111设置于绝缘支撑部112上,绝缘支撑部112起到对陶瓷板111承载的作用,以保证陶瓷板111的支撑效果。与在绝缘罩11直接加工金属化区相比,通过在陶瓷板111上设置并加工金属化区,板状结构的陶瓷板111更容易加工金属化区,从而更好实现与上导磁铁31相焊接的焊接平面。
在本实施例中,陶瓷板111远离上导磁铁31的一侧设置有金属化部,金属化部用于连接静触点引出端21。
通过陶瓷板111远离上导磁铁31的一侧设置有金属化部,即在陶瓷板111的顶部进行金属化处理,用于钎焊两个静触点引出端21,从而保证静触点引出端21在陶瓷板111上的固定效果。
在本实施例中,陶瓷板111对应绝缘支撑部112设置有金属化结构,金属化结构用于连接至少部分绝缘支撑部112。
通过陶瓷板111对应绝缘支撑部112设置有金属化结构,即在陶瓷板111的底部进行金属化处理,用于钎焊至少部分绝缘支撑部112,从而保证绝缘支撑部112和陶瓷板111之间的固定效果。
在本实施例中,如图13‐图16所示,绝缘支撑部112包括围框1121和绝缘框1122,围框1121位于陶瓷板111的下方,用于承载陶瓷板111,围框1121连接于金属化结构;绝缘框1122设置于围框1121内,绝缘框1122连接于陶瓷板111。
围框1121也可以称之为框片,围框1121设置于轭铁板12上,轭铁板12起到对围
框1121支撑的作用。相比于现有的框片,围框1121的高度比较高,相当于加高高度,围框1121位于陶瓷板111的下方,起到承载陶瓷板111的作用,保证对陶瓷板111的支撑效果,由于陶瓷板111的内壁和上导磁铁31进行钎焊,从而围框1121还起到支撑上导磁铁31的作用。通过绝缘框1122设置于围框1121内,绝缘框1122连接于陶瓷板111,以在围框1121的内部为触点组件2、抗短路组件3提供绝缘环境。
在本实施例中,金属化结构和金属化区位于同一水平面内。
可以理解的是,陶瓷板111的两个侧面都进行金属化处理,在陶瓷板111的顶面设置有金属化部,在陶瓷板111的底面金属化结构和金属化区,通过设置金属化结构和金属化区位于同一水平面内,便于对陶瓷板111底面进行金属化处理。
在本实施例中,绝缘框1122粘接于陶瓷板111。
由于陶瓷板111的金属化结构连接于围框1121,即围框1121和陶瓷板111之间已经通过钎焊相连接,此时绝缘框1122和陶瓷板111之间就无需利用钎焊进行固定,绝缘框1122的顶部和陶瓷板111之间通过胶水等进行粘接就能实现固定的效果,以达到降低生产成本的目的。
实施例五
本实施例和实施例一、实施例二、实施例三的结构类似,区别仅在于绝缘罩11中绝缘支撑部112的结构不同。
如图17‐图20所示,本实施例提供的绝缘支撑部112包括陶瓷框1123和围框1121,陶瓷框1123的一端连接于围框1121,另一端连接于陶瓷板111的金属化结构,围框1121承载陶瓷板111。
需要特别说明的是,陶瓷板111直接与陶瓷框1123焊接,陶瓷框1123再与围框1121焊接,由于陶瓷板111为片状结构,更好实现与上导磁铁31焊接的焊接平面。
其中,如图17‐图20所示,围框1121也可以称之为框片,围框1121设置于轭铁板12上,轭铁板12起到对围框1121支撑的作用。围框1121的高度比较矮,陶瓷框1123位于陶瓷板111的下方,通过陶瓷框1123的一端连接于围框1121,另一端连接于陶瓷板111的金属化结构,陶瓷框1123承载陶瓷板111的作用,保证对陶瓷板111的支撑效果。由于陶瓷板111的内壁和上导磁铁31进行钎焊,从而陶瓷框1123还起到支撑上导磁铁31的作用。在陶瓷框1123和陶瓷板111的配合作用下,以在陶瓷框1123和陶瓷板111的内部空间为触点组件2、抗短路组件3提供绝缘环境。
在本公开实施例中,术语“第一”、“第二”、“第三”仅用于描述的目的,而不能理解为指示或暗示相对重要性;“一对”“一”仅用于描述一对或一个,而不能理解为仅一对仅一个,术语“多个”则指两个或两个以上,除非另有明确的限定。术语“安装”、“相连”、“连接”、“固定”等术语均应做广义理解,例如,“连接”可以是固定连接,也可以是可拆卸连接,或一体地连接;“相连”可以是直接相连,也可以通过中间媒介间接相连。对于本领域的普通技术人员而言,可以根据具体情况理解上述术
语在本公开实施例中的具体含义。
本公开实施例的描述中,需要理解的是,术语“上”、“下”、“左”、“右”、“前”、“后”等指示的方位或位置关系为基于附图所示的方位或位置关系,仅是为了便于描述本公开实施例和简化描述,而不是指示或暗示所指的装置或单元必须具有特定的方向、以特定的方位构造和操作,因此,不能理解为对本公开实施例的限制。
在本说明书的描述中,术语“一个实施例”、“一些实施例”、“具体实施例”等的描述意指结合该实施例或示例描述的具体特征、结构、材料或特点包含于本公开实施例的至少一个实施例或示例中。在本说明书中,对上述术语的示意性表述不一定指的是相同的实施例或实例。而且,描述的具体特征、结构、材料或特点可以在任何的一个或多个实施例或示例中以合适的方式结合。
以上仅为本公开实施例的优选实施例而已,并不用于限制本公开实施例,对于本领域的技术人员来说,本公开实施例可以有各种更改和变化。凡在本公开实施例的精神和原则之内,所作的任何修改、等同替换、改进等,均应包含在本公开实施例的保护范围之内。
Claims (16)
- 一种继电器,其特征在于,包括:接触容器(1),包括绝缘罩(11);触点组件(2),包括一动簧片(22)和一对静触点引出端(21),所述静触点引出端(21)设置在所述绝缘罩(11)上,所述静触点引出端(21)至少部分伸入所述绝缘罩(11)内,所述动簧片(22)设置在所述绝缘罩(11)内,所述动簧片(22)用于与一对所述静触点引出端(21)接触或分离;抗短路组件(3),包括上导磁铁(31)和下导磁铁(32),所述上导磁铁(31)设置于所述绝缘罩(11)的顶部内壁,所述下导磁铁(32)设置固定于所述动簧片(22)的底部,所述上导磁铁(31)和所述下导磁铁(32)之间能够用于形成导磁回路,以在所述动簧片(22)出现故障大电流时产生吸力,用于抵抗所述动簧片(22)与所述静触点引出端(21)之间的电动斥力;其中,所述上导磁铁(31)设置有固定安装脚(311),所述固定安装脚(311)与所述绝缘罩(11)的顶部内壁固定连接,以使所述上导磁铁(31)和所述绝缘罩(11)的顶部内壁之间设置有缝隙(312)。
- 根据权利要求1所述的继电器,其特征在于,所述绝缘罩(11)为陶瓷罩,所述陶瓷罩的顶部内壁对应所述固定安装脚(311)的位置设置有金属化区,所述固定安装脚(311)通过所述金属化区与所述陶瓷罩相焊接。
- 根据权利要求1或2所述的继电器,其特征在于,还包括驱动组件(4),所述驱动组件(4)包括推杆单元(41),所述推杆单元(41)能够驱动所述动簧片(22)向靠近所述静触点引出端(21)的方向移动;其中,所述动簧片(22)与所述下导磁铁(32)形成可动构件,所述可动构件和所述推杆单元(41)通过限位凸起(413)和限位孔(422)配合。
- 根据权利要求3所述的继电器,其特征在于,所述下导磁铁(32)包括磁铁主体和两个侧板,两个所述侧板分别设置于所述磁铁主体的两侧,所述推杆单元(41)朝向所述下导磁铁(32)的方向设置有两个挡板(421);其中,所述挡板(421)和所述侧板通过限位凸起(413)和限位孔(422)配合。
- 根据权利要求3所述的继电器,其特征在于,所述可动构件还包括支撑部(42),所述支撑部(42)设置于所述推杆单元(41)和所述下导磁铁(32)之间,所述支撑部(42)与所述下导磁铁(32)固定连接,所述推杆单元(41)和所述支撑部(42)通过所述限位凸起(413)和所述限位孔(422)配合,用于驱动所述动簧片(22)移动。
- 根据权利要求5所述的继电器,其特征在于,所述驱动组件(4)还包括弹性件(43),所述弹性件(43)的一端抵接于所述推杆单元(41),另一端抵接于所述可动构件。
- 根据权利要求6所述的继电器,其特征在于,所述支撑部(42)为U形支架,所述U形支架的开口端朝向所述推杆单元(41)设置,所述U形支架的两个侧臂用于限位所述弹性件(43);其中,所述U形支架的所述侧臂和所述推杆单元(41)通过限位凸起(413)和限位孔(422)配合。
- 根据权利要求6所述的继电器,其特征在于,所述支撑部(42)为固定片,所述推杆单元(41)朝向所述支撑部(42)的方向设置有挡板(421),所述挡板(421)用于限位所述弹性件(43);其中,所述挡板(421)和所述固定片通过限位凸起(413)和限位孔(422)配合。
- 根据权利要求1或2所述的继电器,其特征在于,所述上导磁铁(31)为一字型结构,所述上导磁铁(31)沿所述动簧片(22)的宽度方向延伸;和/或,所述下导磁铁(32)为U形结构,所述下导磁铁(32)的开口朝向所述动簧片(22)设置,所述下导磁铁(32)位于所述动簧片(22)的宽度方向两侧的部分能够抵接于所述上导磁铁(31)。
- 根据权利要求1或2所述的继电器,其特征在于,所述绝缘罩(11)包括:陶瓷板(111),所述陶瓷板(111)靠近所述上导磁铁(31)的一侧设置有金属化区;绝缘支撑部(112),位于所述陶瓷板(111)的下方,用于承载所述陶瓷板(111);其中,所述陶瓷板(111)和所述绝缘支撑部(112)为分体式结构。
- 根据权利要求10所述的继电器,其特征在于,所述陶瓷板(111)远离所述上导磁铁(31)的一侧设置有金属化部,所述金属化部用于连接所述静触点引出端(21)。
- 根据权利要求10所述的继电器,其特征在于,所述陶瓷板(111)对应所述绝缘支撑部(112)设置有金属化结构,所述金属化结构用于连接至少部分所述绝缘支撑部(112)。
- 根据权利要求12所述的继电器,其特征在于,所述绝缘支撑部(112)包括:围框(1121),位于所述陶瓷板(111)的下方,用于承载所述陶瓷板(111),所述围框(1121)连接于所述金属化结构;绝缘框(1122),设置于所述围框(1121)内,所述绝缘框(1122)连接于所述陶瓷板(111)。
- 根据权利要求13所述的继电器,其特征在于,所述绝缘框(1122)粘接于所述陶瓷板(111)。
- 根据权利要求12所述的继电器,其特征在于,所述绝缘支撑部(112)包括陶瓷框(1123)和围框(1121),所述陶瓷框(1123)的一端连接于所述围框(1121),另一端连接于所述陶瓷板(111)的所述金属化结构,所述围框(1121)承载所述陶瓷板(111)。
- 根据权利要求12所述的继电器,其特征在于,所述金属化结构和所述金属化区位于同一水平面内。
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