WO2024092956A1 - 小尺寸高压直流接触器 - Google Patents

小尺寸高压直流接触器 Download PDF

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Publication number
WO2024092956A1
WO2024092956A1 PCT/CN2022/137111 CN2022137111W WO2024092956A1 WO 2024092956 A1 WO2024092956 A1 WO 2024092956A1 CN 2022137111 W CN2022137111 W CN 2022137111W WO 2024092956 A1 WO2024092956 A1 WO 2024092956A1
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Prior art keywords
auxiliary
contact
assembly
mounting
mounting frame
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PCT/CN2022/137111
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English (en)
French (fr)
Inventor
覃奀垚
顾春朋
李康
袁冬冬
Original Assignee
昆山国力电子科技股份有限公司
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Publication of WO2024092956A1 publication Critical patent/WO2024092956A1/zh

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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H50/00—Details of electromagnetic relays
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H50/00—Details of electromagnetic relays
    • H01H50/54—Contact arrangements

Definitions

  • the invention relates to the technical field of direct current contactors, and in particular to a small-sized high-voltage direct current contactor.
  • the main contact assembly which is used to control the on and off of the main circuit through the low-voltage drive part; the other group is the auxiliary contact assembly, which is used as an auxiliary logic switch for the system circuit control function.
  • the industry currently mostly adopts the structure shown in Chinese patent CN110164737A.
  • the auxiliary contact assembly of this structure has the following shortcomings: 1) Compared with high-voltage DC contactor products without auxiliary contacts, the high-voltage DC contactor products with auxiliary contacts are larger in size, which limits the application of high-voltage DC contactors; 2) There are technical problems such as complex parts, complex processes, high costs, and low reliability; 3) It can only be formed into one type of auxiliary contact assembly, such as: either a normally open auxiliary contact assembly or a normally closed auxiliary contact assembly, with poor versatility; etc.
  • the present invention provides a small-sized high-voltage DC contactor.
  • it has a novel and reasonable structure, a small size, and is controllable, and has strong versatility and applicability, which can meet the use requirements of high-voltage DC contactors in different working scenarios; on the other hand, it is easy to process and install, thereby improving assembly efficiency and assembly accuracy.
  • a small-sized high-voltage DC contactor comprising a main contact assembly, an auxiliary contact assembly and a push rod assembly, the upper end of the push rod assembly is respectively connected to the main contact assembly and the auxiliary contact assembly to drive and control the main contact assembly and the auxiliary contact assembly to switch their working states respectively;
  • a mounting frame is provided, the mounting frame cover is arranged outside the upper end of the push rod assembly, and a first mounting structure for receiving and limiting the auxiliary contact assembly is provided on the side wall of the mounting frame, and the auxiliary contact assembly can be formed into a normally closed auxiliary contact assembly by combining the first mounting structure with the push rod assembly.
  • the mounting frame is in an inverted U-shape, and a fixed cover is arranged outside the upper end of the push rod assembly, and the first mounting structure is arranged on at least one of the two side walls of the mounting frame.
  • a group of the first mounting structures is respectively arranged on the two side walls of the mounting frame; the auxiliary contact assembly can be selectively arranged on any one of the two groups of the first mounting structures.
  • the auxiliary contact assembly has an auxiliary static contact and an auxiliary moving contact piece arranged up and down, and the auxiliary moving contact piece is connected to the upper end of the push rod assembly;
  • Each group of the first mounting structures comprises a first static mounting portion disposed on the outer surface of the side wall of the mounting frame, and a first dynamic mounting portion disposed on the side wall of the mounting frame and located below the first static mounting portion, wherein the first static mounting portion is used for mounting the auxiliary static contact, and the first dynamic mounting portion is used for the auxiliary dynamic contact piece to extend out of the mounting frame;
  • the auxiliary contact assembly when the auxiliary contact assembly is arranged on one of the first mounting structures, the part of the auxiliary movable contact piece extending outside the mounting frame is placed below the auxiliary static contact, and the first movable mounting portion can also abut against the auxiliary movable contact piece and form a rotation fulcrum at the abutment.
  • the auxiliary movable contact piece when the auxiliary contact assembly is arranged on one of the first mounting structures, the auxiliary movable contact piece can be partially moved upward and partially deflected downward around the rotating fulcrum under the drive of the push rod assembly, so that the part of the auxiliary movable contact piece extending out of the mounting frame is disconnected from the auxiliary static contact; or the auxiliary movable contact piece can be partially moved downward and partially deflected upward and reset around the rotating fulcrum under the drive of the push rod assembly, so that the part of the auxiliary movable contact piece extending out of the mounting frame is in contact and connected with the auxiliary static contact; at that time, the auxiliary contact assembly is formed as a normally closed auxiliary contact assembly.
  • first receiving slots extending vertically are respectively recessed on the outer surfaces of the two side walls of the mounting frame, and the two first receiving slots are both the first static mounting parts, and are used for inserting the auxiliary static contacts.
  • the auxiliary static contact has a main body portion in the shape of a round rod, a head portion arranged on the upper end of the main body portion, and a static contact portion arranged on the bottom end of the main body portion;
  • the first receiving slot is a long arc-shaped slot matching the shape of the main body.
  • first avoidance grooves opening at the bottom sides of the two side walls are respectively formed on the two side walls of the mounting frame, and the two first avoidance grooves are respectively located below the two first receiving slots, and the two first avoidance grooves are both the first movable mounting parts, respectively allowing the auxiliary movable contact piece to move through; and the top wall of each of the first avoidance grooves can also abut against the auxiliary movable contact piece and form a rotation fulcrum at the abutment.
  • first avoidance grooves opening at the bottom and side of the two side walls are respectively formed on the two side walls of the mounting frame, and the two first avoidance grooves are respectively located below the two first receiving slots, and the two first avoidance grooves are both the first movable mounting parts, respectively allowing the auxiliary movable contact piece to move through; and the top wall of each of the first avoidance grooves can also abut against the auxiliary movable contact piece and form a rotation fulcrum at the abutment.
  • the auxiliary moving contact piece adopts a spring sheet structure, which has a connecting part for connecting to the upper end part of the push rod assembly, a moving contact part for cooperating with the auxiliary static contact, and a connecting part connected between the connecting part and the moving contact part.
  • the moving contact part is a flat sheet, and the moving contact part moves through the first avoidance groove, and the end of the moving contact part close to the connecting part can abut against the top wall of the first avoidance groove, and the rotation fulcrum is formed at the abutment.
  • a group of the first mounting structures is disposed on the first side wall of the mounting frame, and a group of the second mounting structures is disposed on the second side wall of the mounting frame;
  • the auxiliary contact assembly can be selectively arranged on the first mounting structure or the second mounting structure, and when the auxiliary contact assembly is arranged on the first mounting structure, the auxiliary contact assembly is formed as a normally closed auxiliary contact assembly; and when the auxiliary contact assembly is arranged on the second mounting structure, the auxiliary contact assembly is formed as a normally open auxiliary contact assembly.
  • the auxiliary contact assembly has an auxiliary static contact and an auxiliary moving contact piece arranged up and down, and the auxiliary moving contact piece is connected to the upper end of the push rod assembly;
  • the first mounting structure comprises a first static mounting portion disposed on the outer surface of the first side wall of the mounting frame, and a first dynamic mounting portion disposed on the first side wall of the mounting frame and located below the first static mounting portion, wherein the first static mounting portion is used for mounting the auxiliary static contact, and the first dynamic mounting portion is used for the auxiliary dynamic contact piece to extend out of the mounting frame;
  • the portion of the auxiliary movable contact piece extending out of the mounting frame is placed below the auxiliary static contact, and the first movable mounting portion can abut against the auxiliary movable contact piece and form a rotation fulcrum at the abutment point;
  • the second mounting structure comprises a second static mounting portion disposed on the outer surface of the second side wall of the mounting frame, and a second dynamic mounting portion disposed on the second side wall of the mounting frame and located below the second static mounting portion, wherein the second static mounting portion is used for mounting the auxiliary static contact, and the second dynamic mounting portion is used for the auxiliary dynamic contact piece to extend out of the mounting frame;
  • the auxiliary contact assembly when the auxiliary contact assembly is arranged on the second mounting structure, the part of the auxiliary movable contact piece extending out of the mounting frame is placed below the auxiliary static contact, and the second movable mounting portion is always out of contact with the auxiliary movable contact piece.
  • the auxiliary movable contact piece when the auxiliary contact assembly is arranged on the first mounting structure, the auxiliary movable contact piece can be partially moved upward and partially deflected downward around the rotating fulcrum under the drive of the push rod assembly, so that the part of the auxiliary movable contact piece extending out of the mounting frame is disconnected from the auxiliary static contact; or the auxiliary movable contact piece can be partially moved downward and partially deflected upward and reset around the rotating fulcrum under the drive of the push rod assembly, so that the part of the auxiliary movable contact piece extending out of the mounting frame is in contact and connected with the auxiliary static contact; at that time, the auxiliary contact assembly is formed into a normally closed auxiliary contact assembly; and when the auxiliary contact assembly is arranged on the second mounting structure, the auxiliary movable contact piece can be moved upward under the drive of the push rod assembly to contact and connect with the auxiliary static contact, or move downward to disconnect from the auxiliary static contact; at that time, the auxiliary contact assembly is formed into a
  • a first receiving slot extending vertically is recessed on the outer surface of the first side wall of the mounting frame, and the first receiving slot is the first static mounting portion for the auxiliary static contact to be inserted into;
  • a second receiving slot extending vertically is also recessed on the outer surface of the second side wall of the mounting frame, and the second receiving slot is the second static mounting portion for the auxiliary static contact to be inserted into; and the vertical height of the first receiving slot is greater than the vertical height of the second receiving slot.
  • the auxiliary static contact has a main body portion in the shape of a round rod, a head portion arranged on the upper end of the main body portion, and a static contact portion arranged on the bottom end of the main body portion; the first receiving slot and the second receiving slot are both long arc-shaped slots matching the shape of the main body portion.
  • a first avoidance groove is formed on the first side wall of the mounting frame, which is open to the bottom side of the first side wall.
  • the first avoidance groove is located below the first receiving slot.
  • the first avoidance groove is the first movable mounting portion, through which the auxiliary movable contact piece can move.
  • the top wall of the first avoidance groove can also abut against the auxiliary movable contact piece, and form a rotation fulcrum at the abutment.
  • a second avoidance groove opening at the bottom side of the second side wall is also formed on the second side wall of the mounting frame, and the second avoidance groove is located below the second receiving slot, and the second avoidance groove is the second movable mounting portion for the auxiliary movable contact piece to move through; and when the auxiliary contact assembly is arranged on the second mounting structure, the second avoidance groove is always out of contact with the auxiliary movable contact piece; in addition, the vertical height of the second avoidance groove is greater than the vertical height of the first avoidance groove.
  • a first avoidance groove is formed on the first side wall of the mounting frame, which is open to the bottom side and the vertical side of the first side wall.
  • the first avoidance groove is located below the first receiving slot.
  • the first avoidance groove is the first movable mounting portion, which is used for the auxiliary movable contact piece to move through.
  • the top wall of the first avoidance groove can also abut against the auxiliary movable contact piece and form a rotation fulcrum at the abutment.
  • a second avoidance groove is also formed on the second side wall of the mounting frame, which is open to the bottom side and the vertical side of the second side wall.
  • the second avoidance groove is located below the second receiving slot.
  • the second avoidance groove is the second movable mounting portion, which is used for the auxiliary movable contact piece to move through.
  • the second avoidance groove is always out of contact with the auxiliary movable contact piece.
  • the vertical height of the second avoidance groove is greater than the vertical height of the first avoidance groove.
  • the auxiliary moving contact piece adopts a spring sheet structure, which has a connecting part for connecting to the upper end part of the push rod assembly, a moving contact part for cooperating with the auxiliary static contact, and a connecting part connected between the connecting part and the moving contact part.
  • the moving contact part is a flat sheet, and the moving contact part can move through the first avoidance groove or the second avoidance groove; and when the moving contact part moves through the first avoidance groove, one end of the moving contact part close to the connecting part abuts against the top wall of the first avoidance groove, and the rotation fulcrum is formed at the abutment.
  • the bottom side of the mounting frame is fixedly connected to the upper side of the magnetic pole plate of the high-voltage DC contactor, and there is no contact between the inner wall of the mounting frame and the upper end of the push rod assembly.
  • the main contact assembly has a main static contact and an active contact arranged in an upper and lower manner, the active contact is connected to the upper end of the push rod assembly, and the active contact can move upward under the drive of the push rod assembly to contact and connect with the main static contact, or move downward to disconnect from the main static contact.
  • the push rod assembly includes a push rod, an insulating block, a limiting bracket and a contact spring.
  • the lower end of the push rod is connected to the moving iron core of the high-voltage DC contactor, the upper end of the push rod is fixedly provided with the insulating block, the limiting bracket is vertically installed on the insulating block, the lower end of the contact spring is fixedly provided in the insulating block, and the upper end of the contact spring abuts against the active contact piece to press the active contact piece against the top inner wall of the limiting bracket; in addition, one end of the auxiliary moving contact piece is fixedly embedded in the insulating block.
  • an armature assembly is further provided, the armature assembly having an upper armature and a lower armature, the upper armature being fixedly arranged on the top inner wall of the mounting frame, and the lower armature being placed between the active contact piece and the contact spring.
  • the beneficial effects of the present invention are as follows: 1)
  • the present invention innovatively introduces the mounting frame structure, and by means of the mounting frame structure, the installation of the normally closed auxiliary contact assembly can be well realized without increasing the installation space, thereby realizing the optimal control of the size of the high-voltage DC contactor product, and expanding the applicable field and applicable working scene of the high-voltage DC contactor product.
  • the auxiliary contact assembly has a simple structure and is easy to process, and the installation method matched with it is also very simple, such as: the auxiliary static contact is inserted and limited in the receiving slot of the mounting frame, and the connecting part of the auxiliary moving contact piece is fixedly embedded in the insulating block of the push rod assembly through the injection molding process; thereby reducing the assembly difficulty, improving the assembly efficiency and assembly accuracy, and thus improving the working reliability of the high-voltage DC contactor.
  • the upper armature is also installed on the mounting frame.
  • the installation method of the upper armature can also effectively reduce the size of the high-voltage DC contactor, which can further expand the applicable scene of the high-voltage DC contactor.
  • the high-voltage DC contactor designed by the present invention is also compatible with normally closed auxiliary contact assembly forms and normally open auxiliary contact assembly forms, thereby greatly expanding the versatility and applicability of high-voltage DC contactor applications and meeting the use requirements of high-voltage DC contactors in different working scenarios.
  • FIG. 1 is a schematic diagram of the three-dimensional structure of the high-voltage DC contactor according to Embodiment 1 of the present invention when the auxiliary contact assembly is in a connected state;
  • FIG2 is a schematic diagram of the front view of the high-voltage DC contactor shown in FIG1;
  • FIG3 is a schematic diagram of the rear structure of the high-voltage DC contactor shown in FIG1 ;
  • FIG4 is a schematic side view of the high voltage DC contactor shown in FIG1 ;
  • FIG5 is a schematic structural diagram of the auxiliary contact assembly in the high-voltage DC contactor shown in FIG1 at a first viewing angle
  • FIG6 is a schematic structural diagram of the auxiliary contact assembly in the high-voltage DC contactor shown in FIG1 at a second viewing angle;
  • FIG. 7 is a schematic diagram of the three-dimensional structure of the high-voltage DC contactor according to Embodiment 3 of the present invention when the auxiliary contact assembly is in a disconnected state;
  • FIG8 is a schematic diagram of the front view of the high-voltage DC contactor shown in FIG7;
  • FIG9 is a schematic diagram of the rear structure of the high-voltage DC contactor shown in FIG7 ;
  • FIG10 is a schematic side view of the high voltage DC contactor shown in FIG7 ;
  • FIG. 11 is a schematic diagram of the three-dimensional structure of the high-voltage DC contactor according to Embodiment 3 of the present invention when the auxiliary contact assembly is in a connected state;
  • FIG12 is a schematic diagram of the front structure of the high-voltage DC contactor shown in FIG11;
  • FIG13 is a schematic diagram of the rear structure of the high-voltage DC contactor shown in FIG11;
  • FIG14 is a schematic side view of the high voltage DC contactor shown in FIG11;
  • FIG. 15 is a schematic diagram of the three-dimensional structure of the high-voltage DC contactor according to Embodiment 3 of the present invention when the auxiliary contact assembly is in a disconnected state;
  • FIG16 is a schematic diagram of the rear structure of the high-voltage DC contactor shown in FIG15 ;
  • FIG17 is a schematic diagram of the front structure of the high-voltage DC contactor shown in FIG15;
  • FIG18 is a schematic side view of the high voltage DC contactor shown in FIG15 ;
  • FIG19 is a schematic diagram of the three-dimensional structure of the high-voltage DC contactor according to Embodiment 4 of the present invention when the auxiliary contact assembly is in a connected state;
  • FIG20 is a schematic diagram of the front structural view of the high-voltage DC contactor shown in FIG19;
  • FIG. 21 is a schematic diagram of the rear structural view of the high-voltage DC contactor shown in FIG. 19 .
  • Main static contact 11. Active contact piece; 20. Auxiliary static contact; 200. Main body; 201. Head; 202. Static contact part; 21. Auxiliary moving contact piece; 210. Connecting part; 211. Moving contact part; 212. Connecting part; 3. Mounting frame; 30. First receiving slot; 31. First avoidance slot; 32. Second receiving slot; 33. Second avoidance slot; 4. Pole plate; 50. Push rod; 51. Insulating block; 52. Limiting bracket; 53. Contact spring; 60. Upper armature; 61. Lower armature.
  • Embodiment 1 is a diagrammatic representation of Embodiment 1:
  • FIGS 1 to 4 are schematic diagrams of the three-dimensional structure, front view structure, rear view structure and side view structure of the high-voltage DC contactor described in Example 1 when the auxiliary contact assembly is in a connected state.
  • a small-sized high-voltage DC contactor provided in Example 1 mainly includes a main contact assembly, an auxiliary contact assembly and a push rod assembly, and the upper end of the push rod assembly is respectively connected to the main contact assembly and the auxiliary contact assembly to drive and control the main contact assembly and the auxiliary contact assembly to switch the working state respectively; in particular, a mounting frame 3 is provided, and the mounting frame 3 is covered outside the upper end of the push rod assembly, and a first mounting structure for receiving and limiting the auxiliary contact assembly is provided on the side wall of the mounting frame 3, and the auxiliary contact assembly can be formed into a normally closed auxiliary contact assembly by combining the first mounting structure with the push rod assembly.
  • the present invention through the mounting frame structure, can well realize the installation of normally closed auxiliary contact assemblies without increasing the installation space, thereby expanding the application field and applicable working scenarios of high-voltage DC contactor products.
  • this embodiment can achieve the above functions is mainly due to the innovative design of the mounting frame 3 structure and the optimization of the arrangement of the auxiliary contact assembly on the mounting frame 3.
  • the mounting frame 3 is inverted U-shaped, and a fixed cover is arranged outside the upper end of the push rod assembly, and a group of the first mounting structures are respectively arranged on the vertical walls on both sides of the mounting frame 3; the auxiliary contact assembly can be selectively arranged on any one of the two groups of the first mounting structures.
  • the auxiliary contact assembly has an auxiliary static contact 20 and an auxiliary moving contact piece 21 arranged in an upper and lower manner, and the auxiliary moving contact piece 21 is connected to the upper end portion of the push rod assembly;
  • each group of the first mounting structures has a first static mounting portion arranged on the outer surface of the side wall of the mounting frame 3, and a first moving mounting portion arranged on the side wall of the mounting frame 3 and simultaneously located below the first static mounting portion, wherein the first static mounting portion is used for mounting the auxiliary static contact 20, and the first moving mounting portion is used for the auxiliary moving contact piece 21 to extend out of the mounting frame 3; and when the auxiliary contact assembly is arranged on one group of the first mounting structures, the portion of the auxiliary moving contact piece 21 extending out of the mounting frame 3 is placed below the auxiliary static contact 20, and the first moving mounting portion can also abut against the auxiliary moving contact piece 21 and form a rotation fulcrum at the abutment.
  • the working mode of the auxiliary contact assembly in this embodiment 1 is: when the auxiliary contact assembly is arranged on one of the first mounting structures, the auxiliary movable contact piece 21 can be partially moved upward and partially deflected downward around the rotation fulcrum under the drive of the push rod assembly, so that the part of the auxiliary movable contact piece 21 extending out of the mounting frame 3 is disconnected from the auxiliary static contact 20; or the auxiliary movable contact piece 21 can be partially moved downward and partially deflected upward and reset around the rotation fulcrum under the drive of the push rod assembly, so that the part of the auxiliary movable contact piece 21 extending out of the mounting frame 3 is in contact and connected with the auxiliary static contact 20; at that time, the auxiliary contact assembly is formed into a normally closed auxiliary contact assembly.
  • the mounting frame 3 is an innovative new structure, the mounting frame 3 is made of insulating material, the bottom side of which is fixedly connected to the upper side of the magnetic pole plate 4 of the high-voltage DC contactor, and the inner wall thereof is not in contact with the upper end of the push rod assembly. Since the mounting frame 3 is made of insulating material, the main contact assembly and the auxiliary contact assembly can be isolated, thus realizing high and low voltage isolation, which is simple and reliable.
  • the auxiliary static contact 20 has a main body 200 in the shape of a round rod, a head 201 arranged on the upper end of the main body 200, and a static contact part 202 arranged on the bottom end of the main body 200, as shown in Figures 5 and 6.
  • the mounting frame 3 is designed as follows: first receiving slots 30 extending vertically are respectively provided on the outer surfaces of the two side walls of the mounting frame 3, and the two first receiving slots 30 are long arc-shaped slots matching the shape of the main body 200, and are used for inserting and limiting the auxiliary static contact 20, that is, the two first receiving slots 30 are the first static mounting parts. See Figures 1 to 3.
  • the head 201 of the auxiliary static contact 20 is sealed and fixed on the ceramic cover of the high-voltage DC contactor.
  • the head 201 is electrically connected to the PCB arranged on the outer wall of the ceramic cover, and then integrated into the coil group of the high-voltage DC contactor through the PCB, thereby realizing overall control of the low-voltage end.
  • the auxiliary moving contact piece 21 adopts a spring structure, which has a connecting portion 210 for connecting to the upper end of the push rod assembly, a moving contact portion 211 for cooperating with the auxiliary static contact 20, and a connecting portion 212 connected between the connecting portion 210 and the moving contact portion 211, as shown in Figures 5 and 6.
  • the mounting frame 3 is designed as follows: first avoidance grooves 31 opening at the bottom of the two side walls are formed on the two side walls of the mounting frame 3, and the two first avoidance grooves 31 are respectively located below the two first receiving slots 30, that is, the two first avoidance grooves 31 are both inverted U-shaped and are both the first movable mounting parts, respectively allowing the auxiliary movable contact piece 21 to move through; and the top wall of each first avoidance groove 31 can also abut against the auxiliary movable contact piece 21, and form a rotation fulcrum at the abutment. See Figures 1 to 3.
  • the two first avoidance grooves 31 are respectively used for the movable contact part 211 to move through, and one end of the movable contact part 211 close to the connecting part 212 can abut against the top wall of the first avoidance groove 31, and the rotation fulcrum is formed at the abutment.
  • the top wall of the first avoidance groove 31 is designed to be a downward convex arc, and an avoidance groove for avoiding the connecting part 212 is formed on the inner surface of the top wall of the first avoidance groove 31.
  • the moving contact portion 211 is a portion that needs to be deflected, and the moving contact portion 211 is designed to be a flat sheet, so that its contact area with the auxiliary static contact 20 can be increased.
  • the connecting portion 212 and the connecting portion 210 are portions that move up and down with the push rod assembly.
  • the connecting portion 212 is also designed to be curved, such as a wave shape, so that it is easy to deform when the moving contact portion 211 deflects up and down, does not interfere with the up and down deflection of the moving contact portion 211, and provides an elastic reset force for the upward deflection of the moving contact portion 211.
  • the auxiliary static contact 20 and the auxiliary moving contact piece 21 are each configured in two, so in the present embodiment 1, two first receiving slots 30 and one first avoidance slot 31 are respectively formed on the two side walls of the mounting frame 3.
  • the installation combination between the mounting frame 3 and the auxiliary contact assembly reduces the assembly difficulty, improves the assembly efficiency and assembly accuracy, and improves the working reliability of the high-voltage DC contactor without increasing the installation space.
  • the main contact assembly, the push rod assembly and the armature assembly all adopt conventional structures in the technical field of high-voltage DC contactors, and their specific structures are described as follows:
  • the main contact assembly has a main static contact 10 and an active contact piece 11 arranged in an upper and lower manner.
  • the active contact piece 11 is connected to the upper end of the push rod assembly.
  • the active contact piece 11 can move upward under the drive of the push rod assembly to contact and connect with the main static contact 10, or move downward to disconnect from the main static contact 10.
  • the push rod assembly includes a push rod 50, an insulating block 51, a limiting bracket 52 and a contact spring 53.
  • the lower end of the push rod 50 is connected to the moving iron core of the high-voltage DC contactor, the upper end of the push rod 50 is fixedly provided with the insulating block 51, the limiting bracket 52 is vertically installed on the insulating block 51, the lower end of the contact spring 53 is fixedly provided in the insulating block 51 (specifically, a mounting groove for positioning and inserting the lower end of the contact spring 53 is concavely provided on the upper side of the insulating block 51), and the upper end of the contact spring 53 abuts against the active contact piece 11 to abut the active contact piece 11 against the top inner wall of the limiting bracket 52; in addition, one end of the auxiliary moving contact piece 21 (specifically, the end of the connecting portion 210 facing away from the connecting portion 212) is fixedly embedded in the insulating block 51 through an injection molding process.
  • the upper end of the push rod assembly contains
  • the limiting bracket 52 is further described.
  • the limiting bracket 52 can adopt an inverted U-shaped basket structure or a quadrilateral frame structure.
  • the bottom side of the limiting bracket 52 is snap-connected with the insulating block 51 (this is a well-known technical means commonly used in the field of high-voltage DC contactors);
  • the limiting bracket 52 adopts a quadrilateral frame structure the bottom side of the limiting bracket 52 is buried in the insulating block 51 through an injection molding process.
  • the armature assembly comprises an upper armature 60 and a lower armature 61, wherein the upper armature 60 is fixedly arranged on the inner wall of the top side of the mounting frame 3, and the lower armature 61 is placed between the active contact piece 11 and the contact spring 53.
  • a magnetic circuit can be formed between the lower armature 61 and the upper armature 60 to realize an electromagnetic attraction force with an upward force direction on the active contact piece 11, so that the active contact piece 11 and the main static contact 10 are more easily attracted;
  • installing the upper armature 60 on the mounting frame 3 can well reduce the size of the high-voltage DC contactor and further expand the applicable scenarios of the high-voltage DC contactor.
  • Embodiment 2 is a diagrammatic representation of Embodiment 1:
  • the main difference of the high-voltage DC contactor structure provided in Example 2 is that the part of the mounting frame 3 that matches the auxiliary moving contact piece 21 is changed.
  • the other component structures are the same as those in Example 1. That is, the high-voltage DC contactor provided in Example 2 is also a high-voltage DC contactor.
  • the mounting frame 3 is designed with the following structure: first avoidance grooves 31 opening at the bottom side and the vertical side of the two side walls are respectively formed on the two side walls of the mounting frame 3, and the two first avoidance grooves 31 are respectively located below the two first receiving slots 30, that is, the two first avoidance grooves 31 are both inverted L-shaped and are both the first movable mounting parts, respectively allowing the auxiliary movable contact piece 21 to move through; and the top wall of each inverted L-shaped first avoidance groove 31 can also abut against the auxiliary movable contact piece 21 and form a rotation fulcrum at the abutment.
  • the top wall of each of the first avoidance grooves 31 in the inverted L shape in the second embodiment is in a downward convex arc shape, and the inner surface of the top wall of the first avoidance groove 31 is also formed with an avoidance groove for avoiding the connecting portion 212.
  • the structure of the first avoidance groove 31 in the second embodiment can be referred to as shown in Figures 19 and 20 in the fourth embodiment.
  • the auxiliary static contact 20 and the auxiliary moving contact piece 21 are each configured in two, and thus in the present embodiment 2, two first receiving slots 30 and two first avoidance slots 31 are respectively formed on the two side walls of the mounting frame 3, and the two first avoidance slots 31 are also arranged in a mirror image.
  • Embodiment 3 is a diagrammatic representation of Embodiment 3
  • the main difference of the high-voltage DC contactor structure provided in Example 3 is that: a group of the first mounting structures is arranged on the first side wall of the mounting frame 3, and a group of the second mounting structures is arranged on the second side wall of the mounting frame 3; the auxiliary contact assembly can be selectively arranged on the first mounting structure or the second mounting structure, and when the auxiliary contact assembly is arranged on the first mounting structure, the auxiliary contact assembly is formed as a normally closed auxiliary contact assembly (specifically, see Figures 7 to 14); and when the auxiliary contact assembly is arranged on the second mounting structure, the auxiliary contact assembly is formed as a normally open auxiliary contact assembly (specifically, see Figures 15 to 18). That is, the high-voltage DC contactor described in this Example 3 is compatible with the normally closed auxiliary contact assembly form and the normally open auxiliary contact assembly form.
  • the high-voltage DC contactor structure provided in this Example 3 not only has the advantages of the high-voltage DC contactor structure provided in Example 1, but is also compatible with the normally closed auxiliary contact assembly form and the normally open auxiliary contact assembly form, which greatly expands the versatility and applicability of the high-voltage DC contactor application, thereby meeting the use requirements of high-voltage DC contactors in different working scenarios.
  • the auxiliary contact assembly has an auxiliary static contact 20 and an auxiliary moving contact piece 21 arranged up and down, and the auxiliary moving contact piece 21 is connected to the upper end of the push rod assembly;
  • the first mounting structure comprises a first static mounting portion arranged on the outer surface of the first side wall of the mounting frame 3, and a first dynamic mounting portion arranged on the first side wall of the mounting frame 3 and located below the first static mounting portion, wherein the first static mounting portion is used for mounting the auxiliary static contact 20, and the first dynamic mounting portion is used for the auxiliary dynamic contact piece 21 to extend out of the mounting frame 3; and when the auxiliary contact assembly is arranged on the first mounting structure, the portion of the auxiliary dynamic contact piece 21 extending out of the mounting frame 3 is placed below the auxiliary static contact 20, and the first dynamic mounting portion can abut against the auxiliary dynamic contact piece 21, and form a rotation fulcrum at the abutment;
  • the second mounting structure comprises a second static mounting portion arranged on the outer surface of the second side wall of the mounting frame 3, and a second dynamic mounting portion arranged on the second side wall of the mounting frame 3 and located below the second static mounting portion, wherein the second static mounting portion is used for mounting the auxiliary static contact 20, and the second dynamic mounting portion is used for the auxiliary dynamic contact piece 21 to extend out of the mounting frame 3; and when the auxiliary contact assembly is arranged on the second mounting structure, the portion of the auxiliary dynamic contact piece 21 extending out of the mounting frame 3 is placed below the auxiliary static contact 20, and the second dynamic mounting portion is always not in contact with the auxiliary dynamic contact piece 21.
  • the working mode of the auxiliary contact assembly in this embodiment 3 is as follows:
  • the auxiliary movable contact piece 21 can partially move upwards and partially deflect downwards around the rotation fulcrum under the drive of the push rod assembly, so that the part of the auxiliary movable contact piece 21 extending outside the mounting frame 3 is disconnected from the auxiliary static contact 20 (the structure when "disconnected” can be shown in Figures 7 to 10); or the auxiliary movable contact piece 21 can partially move downwards and partially deflect upwards and reset around the rotation fulcrum under the drive of the push rod assembly, so that the part of the auxiliary movable contact piece 21 extending outside the mounting frame 3 is in contact and communication with the auxiliary static contact 20 (the structure when "in contact and communication" can be shown in Figures 11 to 14); at that time, the auxiliary contact assembly is formed into a normally closed auxiliary contact assembly;
  • the auxiliary movable contact piece 21 can move upward under the drive of the push rod assembly to contact and connect with the auxiliary static contact 20, or move downward to disconnect from the auxiliary static contact 20 (the structure when "disconnected” can be referred to as shown in Figures 15 to 18); at that time, the auxiliary contact assembly is formed into a normally open auxiliary contact assembly.
  • auxiliary moving contact piece 21 is partially deflected upward or downward around the rotation fulcrum to achieve contact, connection or disconnection with the auxiliary static contact 20.
  • the auxiliary moving contact piece 21 can also be partially flipped forward or backward, flipped left or right, etc. to achieve contact, connection or disconnection with the auxiliary static contact 20.
  • the mounting frame 3 is an innovative new structure, and the mounting frame 3 is made of insulating material, and its bottom side is fixedly connected to the upper side of the magnetic pole plate 4 of the high-voltage DC contactor, and its inner wall is not in contact with the upper end of the push rod assembly. Because it is made of insulating material, the mounting frame 3 can isolate the main contact assembly and the auxiliary contact assembly, achieving high and low voltage isolation, which is simple and reliable.
  • the auxiliary static contact 20 has a main body 200 in the shape of a round rod, a head 201 arranged on the upper end of the main body 200, and a static contact part 202 arranged on the bottom end of the main body 200; see Figures 5 and 6 for details.
  • the mounting frame 3 is designed with the following structure: a first receiving slot 30 extending vertically is recessed on the outer surface of the first side wall of the mounting frame 3, and the first receiving slot 30 is a long arc-shaped slot matching the shape of the main body 200 (as shown in Figures 8, 12 and 17), and the first receiving slot 30 is the first static mounting portion for the auxiliary static contact 20 to be inserted into; a second receiving slot 32 extending vertically is also recessed on the outer surface of the second side wall of the mounting frame 3 (as shown in Figures 9, 13 and 16), and the second receiving slot 32 is a long arc-shaped slot matching the shape of the main body 200, and the second receiving slot 32 is the second static mounting portion for the auxiliary static contact 20 to be inserted into.
  • the head 201 of the auxiliary static contact 20 is sealed and fixed on the ceramic cover of the high-voltage DC contactor.
  • the head 201 is electrically connected to the PCB arranged on the outer wall of the ceramic cover, and then integrated into the coil group of the high-voltage DC contactor through the PCB, thereby realizing the overall control of the low-voltage end.
  • the vertical height of the first receiving slot 30 is greater than the vertical height of the second receiving slot 32, mainly to cooperate with the first avoidance slot 31 and the second avoidance slot 33 structure described below.
  • the auxiliary moving contact piece 21 adopts a spring structure, which has a connecting portion 210 for connecting to the upper end of the push rod assembly, a moving contact portion 211 for cooperating with the auxiliary static contact 20, and a connecting portion 212 connected between the connecting portion 210 and the moving contact portion 211, as shown in Figures 5 and 6.
  • the mounting frame 3 is designed as follows: a first avoidance groove 31 is formed on the first side wall of the mounting frame 3 and is opened at the bottom side of the first side wall.
  • the first avoidance groove 31 is located below the first receiving slot 30, that is, the first avoidance groove 31 is inverted U-shaped and is the first movable mounting portion, through which the auxiliary movable contact piece 21 can move (see Figures 8, 12 and 17); and when the auxiliary contact assembly is arranged on the first mounting structure, the top wall of the first avoidance groove 31 can also abut against the auxiliary movable contact piece 21 and form a rotation fulcrum at the abutment.
  • a second avoidance groove 33 opening at the bottom side of the second side wall is also formed on the second side wall of the mounting frame 3, and the second avoidance groove 33 is located below the second receiving slot 32, that is, the second avoidance groove 33 is an inverted U-shape and is the second movable mounting portion for the auxiliary movable contact piece 21 to move through; and when the auxiliary contact assembly is arranged on the second mounting structure, the second avoidance groove 33 is always out of contact with the auxiliary movable contact piece 21 (as shown in Figures 9, 13 and 16), which can be achieved by designing the vertical height of the second avoidance groove 33 to be greater than the vertical height of the first avoidance groove 31.
  • the second avoidance groove 33 does not need to contact the auxiliary moving contact piece 21, and does not need to affect or interfere with the movement of the auxiliary moving contact piece 21; while the first avoidance groove 31 needs to affect or interfere with the movement of the auxiliary moving contact piece 21, and promote the local deflection of the auxiliary moving contact piece 21.
  • the first avoidance groove 31 allows the moving contact part 211 to move through, and the end of the moving contact part 211 close to the connecting part 212 can abut against the top wall of the first avoidance groove 31, and form the rotation fulcrum at the abutment; and in order to facilitate the deflection of the moving contact part 211, the top wall of the first avoidance groove 31 is designed to be a downward convex arc, and an avoidance groove for avoiding the connecting part 212 is formed on the inner surface of the top wall of the first avoidance groove 31.
  • the moving contact part 211 is the part that needs to be deflected, and the moving contact part 211 is designed to be a flat sheet, which can increase its contact area with the auxiliary static contact 20.
  • the connecting portion 212 and the connecting portion 210 are the parts that move up and down with the push rod assembly.
  • the connecting portion 212 is designed to be curved, such as a wave shape, so that it is easy to deform when the dynamic contact portion 211 deflects up and down, thereby not interfering with the up and down deflection of the dynamic contact portion 211, and providing an elastic restoring force for the upward deflection of the dynamic contact portion 211.
  • the auxiliary static contact 20 and the auxiliary moving contact piece 21 are each provided in pairs. Therefore, in the present embodiment 3, two of the first receiving slots 30 and one of the first avoidance slots 31 are formed on the first side wall of the mounting frame 3, and two of the second receiving slots 32 and one of the second avoidance slots 33 are formed on the second side wall of the mounting frame 3.
  • the main contact assembly, the push rod assembly and the armature assembly all adopt conventional structures in the technical field of high-voltage DC contactors, and their specific structures are shown in the above-mentioned embodiment 1.
  • Embodiment 4 is a diagrammatic representation of Embodiment 4:
  • the main difference of the high-voltage DC contactor structure provided in Example 4 is that the part of the mounting frame 3 that matches the auxiliary movable contact piece 21 is changed.
  • the structures of other components are the same as those in Example 3. That is, the high-voltage DC contactor provided in Example 4 is also a universal high-voltage DC contactor compatible with the normally closed auxiliary contact assembly form and the normally open auxiliary contact assembly form.
  • a first avoidance groove 31 is formed on the first side wall of the mounting frame 3, which is open to the bottom side and the vertical side of the first side wall.
  • the first avoidance groove 31 is located below the first receiving slot 30, that is, the first avoidance groove 31 is an inverted L-shape and is the first movable mounting portion, which is used for the auxiliary movable contact piece 21 to move through; and when the auxiliary contact assembly is arranged on the first mounting structure, the top wall of the first avoidance groove 31 can also abut against the auxiliary movable contact piece 21, and form a rotation fulcrum at the abutment;
  • a second avoidance groove 33 opening at the bottom and the vertical side of the second side wall is also formed on the second side wall of the mounting frame 3.
  • the second avoidance groove 33 is located below the second receiving slot 32, that is, the second avoidance groove 33 is an inverted L-shape and is the second movable mounting portion, which is used for the auxiliary movable contact piece 21 to move through; and when the auxiliary contact assembly is arranged on the second mounting structure, the second avoidance groove 33 is always out of contact with the auxiliary movable contact piece 21, which can be achieved by designing the vertical height of the second avoidance groove 33 to be greater than the vertical height of the first avoidance groove 31 (the reason for this design can be found in Example 3).
  • each of the inverted L-shaped first avoidance grooves 31 in this Example 4 is in a downward convex arc shape, and an avoidance groove for avoiding the connecting portion 212 is also formed on the inner surface of the top wall of the first avoidance groove 31.
  • the auxiliary static contact 20 and the auxiliary moving contact piece 21 are both configured in two, and thus in the present embodiment 4, two first receiving slots 30 and two first avoidance slots 31 are formed on the first side wall of the mounting frame 3, and the two first avoidance slots 31 are also arranged in a mirror image; two second receiving slots 32 and two second avoidance slots 33 are also formed on the second side wall of the mounting frame 3, and the two second avoidance slots 33 are also arranged in a mirror image.
  • the high-voltage DC contactor of the present invention has a novel and reasonable structure, a small size, and is controllable, and has strong versatility and applicability, and can meet the use requirements of high-voltage DC contactors in different working scenarios; in addition, the high-voltage DC contactor is easy to process and install, thereby improving assembly efficiency and assembly accuracy.

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Abstract

本发明公开了一种小尺寸高压直流接触器，包括主触头组件、辅助触头组件和推杆组件，推杆组件的上端部分别与主触头组件和辅助触头组件相连接，以驱动控制主触头组件和辅助触头组件分别进行工作状态切换；设有安装架，安装架罩设于推杆组件的上端部外，安装架的侧立壁上设置有用于承接及限制辅助触头组件的第一安装结构，且通过第一安装结构与推杆组件组合，可使得辅助触头组件成型为常闭型辅助触头组件。该高压直流接触器的结构新颖、合理，尺寸小、且可控，通用性和适用性强，可以满足不同工作场景下的高压直流接触器使用需求；另外该高压直流接触器还易加工和安装，提高了组装效率和组装精度。

Description

小尺寸高压直流接触器 技术领域
本发明涉及直流接触器技术领域，尤其涉及一种小尺寸高压直流接触器。
背景技术
在高压直流接触器结构中，通常设置有两组触点组件，一组为主触头组件，用作为通过低压驱动部分控制主回路的通断；另一组为辅助触头组件，用作为系统电路控制功能的辅助逻辑开关。
关于辅助触头组件，目前行业内多采用如中国专利CN110164737A中所示结构。但这种结构的辅助触头组件具有以下不足：1)相比不带辅助触点的高压直流接触器产品，具有辅助触点的高压直流接触器产品的尺寸较大，从而对高压直流接触器的应用造成局限；2)具有零件复杂、工艺复杂、成本高昂、可靠性低等技术问题；3)只能成型为一种类型的辅助触头组件形式，如：要么是常开型辅助触头组件，要么是常闭型辅助触头组件，通用性较差；等。
有鉴于此，特提出本发明。
发明内容
为了克服上述缺陷，本发明提供了一种小尺寸高压直流接触器，一方面，其结构新颖、合理，尺寸小、且可控，通用性和适用性强，可以满足不同工作场景下的高压直流接触器使用需求；另一方面，其易加工和安装，提高了组装效率和组装精度。
本发明为了解决其技术问题所采用的技术方案是：一种小尺寸高压直流接触器，包括主触头组件、辅助触头组件和推杆组件，所述推杆组件的上端部分别与所述主触头组件和所述辅助触头组件相连接，以驱动控制所述主触头组件和所述辅助触头组件分别进行工作状态切换；设有安装架，所述安装架罩设于所述推杆 组件的上端部外，所述安装架的侧立壁上设置有用于承接及限制所述辅助触头组件的第一安装结构，且通过所述第一安装结构与所述推杆组件组合，可使得所述辅助触头组件成型为常闭型辅助触头组件。
作为本发明的进一步改进，所述安装架为倒U形、并固定罩设于所述推杆组件的上端部外，且所述安装架的两侧立壁的至少一个上设置有所述第一安装结构。
作为本发明的进一步改进，所述安装架的两侧立壁上均分别设置有一组所述第一安装结构；所述辅助触头组件可选择性地设置于两组所述第一安装结构中的任意一个上。
作为本发明的进一步改进，所述辅助触头组件具有呈上下布置的辅助静触头和辅助动触片，所述辅助动触片与所述推杆组件的上端部相连接；
每组所述第一安装结构均具有设置于所述安装架的侧立壁外表面上的第一静安装部、以及设置于所述安装架的侧立壁上并同时位于所述第一静安装部下方的第一动安装部，其中所述第一静安装部供所述辅助静触头安装用，所述第一动安装部供所述辅助动触片伸出于所述安装架外；
并且当所述辅助触头组件设置于其中一组所述第一安装结构上时，所述辅助动触片伸出于所述安装架外的部分置于所述辅助静触头的下方，且所述第一动安装部还能够与所述辅助动触片相抵接、并在抵接处形成转动支点。
作为本发明的进一步改进，当所述辅助触头组件设置于其中一组所述第一安装结构上时，所述辅助动触片能够在所述推杆组件的驱动下局部向上移动、且局部绕所述转动支点朝下偏转，以使得所述辅助动触片伸出于所述安装架外的部分与所述辅助静触头断开连接；或者所述辅助动触片能够在所述推杆组件的驱动下局部向下移动、且局部绕所述转动支点朝上偏转复位，以使得所述辅助动触片伸出于所述安装架外的部分与所述辅助静触头接触连通；届时，所述辅助触头组件成型为常闭型辅助触头组件。
作为本发明的进一步改进，所述安装架的两侧立壁外表面上均分别凹设有沿竖向延伸的第一收容插槽，两个所述第一收容插槽均为所述第一静安装部，均供所述辅助静触头插装用。
作为本发明的进一步改进，所述辅助静触头具有为圆杆状的主体部、设置于所述主体部上端上的头部、及设置于所述主体部底端上的静接触部；
所述第一收容插槽为与所述主体部形状相匹配的长条弧形槽。
作为本发明的进一步改进，所述安装架的两侧立壁上分别形成有开口于该两侧立壁底侧的第一避位槽，两个所述第一避位槽分别对应的位于两个所述第一收容插槽下方，两个所述第一避位槽均为所述第一动安装部，分别供所述辅助动触片活动穿过；并且，每一所述第一避位槽的顶壁还均能够与所述辅助动触片相抵接、并在抵接处形成转动支点。
作为本发明的进一步改进，所述安装架的两侧立壁上分别形成有开口于该两侧立壁底侧及立边侧的第一避位槽，两个所述第一避位槽分别对应的位于两个所述第一收容插槽下方，两个所述第一避位槽均为所述第一动安装部，分别供所述辅助动触片活动穿过；并且，每一所述第一避位槽的顶壁还均能够与所述辅助动触片相抵接、并在抵接处形成转动支点。
作为本发明的进一步改进，所述辅助动触片采用弹片结构，其具有一用于与所述推杆组件的上端部相连接的连接部、一用于与所述辅助静触头配合工作的动接触部、及一衔接于所述连接部与所述动接触部之间的衔接部，所述动接触部为平片状，所述动接触部活动穿过所述第一避位槽，并且所述动接触部靠近所述衔接部的一端能够与所述第一避位槽的顶壁相抵接，并在抵接处形成所述转动支点。
作为本发明的进一步改进，所述安装架的第一个侧立壁上设置有一组所述第一安装结构，所述安装架的第二个侧立壁上设置有一组第二安装结构；
所述辅助触头组件可选择性地设置于所述第一安装结构或者所述第二安装结构上，并且当所述辅助触头组件设置于所述第一安装结构上时，所述辅助触头组件成型为常闭型辅助触头组件；而当所述辅助触头组件设置于所述第二安装结构上时，所述辅助触头组件成型为常开型辅助触头组件。
作为本发明的进一步改进，所述辅助触头组件具有呈上下布置的辅助静触头和辅助动触片，所述辅助动触片与所述推杆组件的上端部相连接；
所述第一安装结构具有设置于所述安装架的第一个侧立壁外表面上的第一静安装部、以及设置于所述安装架的第一个侧立壁上并同时位于所述第一静安装部下方的第一动安装部，其中所述第一静安装部供所述辅助静触头安装用，所述第一动安装部供所述辅助动触片伸出于所述安装架外；
并且当所述辅助触头组件设置于所述第一安装结构上时，所述辅助动触片伸 出于所述安装架外的部分置于所述辅助静触头的下方，且所述第一动安装部能够与所述辅助动触片相抵接、并在抵接处形成转动支点；
所述第二安装结构具有设置于所述安装架的第二个侧立壁外表面上的第二静安装部、以及设置于所述安装架的第二个侧立壁上并同时位于所述第二静安装部下方的第二动安装部，其中所述第二静安装部供所述辅助静触头安装用，所述第二动安装部供所述辅助动触片伸出于所述安装架外；
并且当所述辅助触头组件设置于所述第二安装结构上时，所述辅助动触片伸出于所述安装架外的部分置于所述辅助静触头的下方，且所述第二动安装部始终与所述辅助动触片不接触。
作为本发明的进一步改进，当所述辅助触头组件设置于所述第一安装结构上时，所述辅助动触片能够在所述推杆组件的驱动下局部向上移动、且局部绕所述转动支点朝下偏转，以使得所述辅助动触片伸出于所述安装架外的部分与所述辅助静触头断开连接；或者所述辅助动触片能够在所述推杆组件的驱动下局部向下移动、且局部绕所述转动支点朝上偏转复位，以使得所述辅助动触片伸出于所述安装架外的部分与所述辅助静触头接触连通；届时，所述辅助触头组件成型为常闭型辅助触头组件；而当所述辅助触头组件设置于所述第二安装结构上时，所述辅助动触片能够在所述推杆组件的驱动下向上移动以与所述辅助静触头接触连通，或者向下移动以与所述辅助静触头断开连接；届时，所述辅助触头组件成型为常开型辅助触头组件。
作为本发明的进一步改进，所述安装架的第一个侧立壁外表面上凹设有沿竖向延伸的第一收容插槽，所述第一收容插槽即为所述第一静安装部，供所述辅助静触头插装用；所述安装架的第二个侧立壁外表面上亦凹设有沿竖向延伸的第二收容插槽，所述第二收容插槽即为所述第二静安装部，供所述辅助静触头插装用；且所述第一收容插槽的竖向高度大于所述第二收容插槽的竖向高度。
作为本发明的进一步改进，所述辅助静触头具有为圆杆状的主体部、设置于所述主体部上端上的头部、及设置于所述主体部底端上的静接触部；所述第一收容插槽和所述第二收容插槽均为与所述主体部形状相匹配的长条弧形槽。
作为本发明的进一步改进，所述安装架的第一个侧立壁上形成有开口于该第一个侧立壁底侧的第一避位槽，所述第一避位槽位于所述第一收容插槽的下方， 所述第一避位槽即为所述第一动安装部，供所述辅助动触片活动穿过；并且，当所述辅助触头组件设置于所述第一安装结构上时，所述第一避位槽的顶壁还能够与所述辅助动触片相抵接、并在抵接处形成转动支点；
所述安装架的第二个侧立壁上亦形成有开口于该第二个侧立壁底侧的第二避位槽，所述第二避位槽位于所述第二收容插槽的下方，所述第二避位槽即为所述第二动安装部，供所述辅助动触片活动穿过；并且，当所述辅助触头组件设置于所述第二安装结构上时，所述第二避位槽始终与所述辅助动触片不接触；另外，所述第二避位槽的竖向高度大于所述第一避位槽的竖向高度。
作为本发明的进一步改进，所述安装架的第一个侧立壁上形成有开口于该第一个侧立壁底侧及立边侧的第一避位槽，所述第一避位槽位于所述第一收容插槽的下方，所述第一避位槽即为所述第一动安装部，用于供所述辅助动触片活动穿过；并且，当所述辅助触头组件设置于所述第一安装结构上时，所述第一避位槽的顶壁还能够与所述辅助动触片相抵接、并在抵接处形成转动支点；
所述安装架的第二个侧立壁上亦形成有开口于该第二个侧立壁底侧及立边侧的第二避位槽，所述第二避位槽位于所述第二收容插槽的下方，所述第二避位槽即为所述第二动安装部，用于供所述辅助动触片活动穿过；并且，当所述辅助触头组件设置于所述第二安装结构上时，所述第二避位槽始终与所述辅助动触片不接触；另外，所述第二避位槽的竖向高度大于所述第一避位槽的竖向高度。
作为本发明的进一步改进，所述辅助动触片采用弹片结构，其具有一用于与所述推杆组件的上端部相连接的连接部、一用于与所述辅助静触头配合工作的动接触部、及一衔接于所述连接部与所述动接触部之间的衔接部，所述动接触部为平片状，所述动接触部能够活动穿过所述第一避位槽或者所述第二避位槽；并且当所述动接触部活动穿过所述第一避位槽时，所述动接触部靠近所述衔接部的一端与所述第一避位槽的顶壁相抵接，并在抵接处形成所述转动支点。
作为本发明的进一步改进，所述安装架的底侧固定连接于该高压直流接触器的磁极板上侧上，且所述安装架内壁与所述推杆组件上端部之间不接触。
作为本发明的进一步改进，所述主触头组件具有呈上下布置的主静触头和主动触片，所述主动触片与所述推杆组件的上端部相连接，所述主动触片能够在所述推杆组件的驱动下向上移动以与所述主静触头接触连通，或者向下移动以与所 述主静触头断开连接。
作为本发明的进一步改进，所述推杆组件包括推杆、绝缘块、限制支架和触头弹簧，所述推杆下端与该高压直流接触器的动铁芯相连接，所述推杆上端固定设置有所述绝缘块，所述限制支架竖立安装于所述绝缘块上，所述触头弹簧下端固定设置于所述绝缘块中，所述触头弹簧上端抵接于所述主动触片，以将所述主动触片抵顶于所述限制支架的顶内壁上；另外，所述辅助动触片一端固定嵌装于所述绝缘块中。
作为本发明的进一步改进，还设有衔铁组件，所述衔铁组件具有上衔铁和下衔铁，所述上衔铁固定设置于所述安装架的顶侧内壁上，所述下衔铁置于所述主动触片与所述触头弹簧之间。
本发明的有益效果是：1)本发明创新性的引入了所述安装架结构，并且借由所述安装架结构，可实现在不增加安装空间的基础上，很好的实现了常闭型辅助触头组件的安装，从而实现了对高压直流接触器产品尺寸进行优控，扩大了高压直流接触器产品的适用领域、及适用工作场景。2)在本发明所述的高压直流接触器结构中，辅助触头组件的结构简单、易加工，而且与其配合的安装方式也十分简便，如：所述辅助静触头插置限位于所述安装架的收容插槽中，所述辅助动触片的连接部通过注塑成型工艺固定嵌装于所述推杆组件的绝缘块中；从而降低了组装难度，提高了组装效率和组装精度，进而提高了高压直流接触器的工作可靠性。3)在本发明所述的高压直流接触器结构中，所述上衔铁也安装于所述安装架上，相较于现有结构，所述上衔铁的安装方式，也可有效缩减高压直流接触器尺寸，可进一步扩大高压直流接触器的适用场景。4)本发明设计出的高压直流接触器还可兼容常闭型辅助触头组件形式和常开型辅助触头组件形式，从而可很好的扩大高压直流接触器应用的通用性和适用性，可以满足不同工作场景下的高压直流接触器使用需求。
附图说明
图1为本发明实施例1所述的高压直流接触器在所述辅助触头组件处于连通状态下的立体结构示意图；
图2为图1所示高压直流接触器的主视结构示意图；
图3为图1所示高压直流接触器的后视结构示意图；
图4为图1所示高压直流接触器的侧视结构示意图；
图5为图1所示高压直流接触器中所述辅助触头组件处于第一视角下的结构示意图；
图6为图1所示高压直流接触器中所述辅助触头组件处于第二视角下的结构示意图；
图7为本发明实施例3所述的高压直流接触器在所述辅助触头组件处于断开状态下的立体结构示意图；
图8为图7所示高压直流接触器的主视结构示意图；
图9为图7所示高压直流接触器的后视结构示意图；
图10为图7所示高压直流接触器的侧视结构示意图；
图11为本发明实施例3所述的高压直流接触器在所述辅助触头组件处于连通状态下的立体结构示意图；
图12为图11所示高压直流接触器的主视结构示意图；
图13为图11所示高压直流接触器的后视结构示意图；
图14为图11所示高压直流接触器的侧视结构示意图；
图15为本发明实施例3所述的高压直流接触器在所述辅助触头组件处于断开状态下的立体结构示意图；
图16为图15所示高压直流接触器的后视结构示意图；
图17为图15所示高压直流接触器的主视结构示意图；
图18为图15所示高压直流接触器的侧视结构示意图；
图19为本发明实施例4所述的高压直流接触器在所述辅助触头组件处于连通状态下的立体结构示意图；
图20为图19所示高压直流接触器的主视结构示意图；
图21为图19所示高压直流接触器的后视结构示意图。
结合附图，作以下说明：
10、主静触头；11、主动触片；20、辅助静触头；200、主体部；201、头部；202、静接触部；21、辅助动触片；210、连接部；211、动接触部；212、衔接部；3、安装架；30、第一收容插槽；31、第一避位槽；32、第二收容插槽；33、第二 避位槽；4、磁极板；50、推杆；51、绝缘块；52、限制支架；53、触头弹簧；60、上衔铁；61、下衔铁。
具体实施方式
以下结合附图，对本发明的较佳实施例作详细说明。
实施例1：
请参阅附图1至附图4所示，分别为本实施例1所述的高压直流接触器在所述辅助触头组件处于连通状态下的立体结构、主视结构、后视结构及侧视结构示意图。本实施例1提供的一种小尺寸高压直流接触器，主要包括主触头组件、辅助触头组件和推杆组件，所述推杆组件的上端部分别与所述主触头组件和所述辅助触头组件相连接，以驱动控制所述主触头组件和所述辅助触头组件分别进行工作状态切换；特别的，设有安装架3，所述安装架3罩设于所述推杆组件的上端部外，所述安装架3的侧立壁上设置有用于承接及限制所述辅助触头组件的第一安装结构，且通过所述第一安装结构与所述推杆组件组合，可使得所述辅助触头组件成型为常闭型辅助触头组件。相较于现有带辅助触点的高压直流接触器产品，本发明借由所述安装架结构，可实现在不增加安装空间的基础上，很好的实现了常闭型辅助触头组件的安装，从而扩大了高压直流接触器产品的适用领域、及适用工作场景。
本实施例之所以能够实现上述功能，主要在于创新性的设计出所述安装架3结构，并对所述辅助触头组件于所述安装架3上的布置方式进行了优控。
在本实施例1中，优选的，所述安装架3为倒U形、并固定罩设于所述推杆组件的上端部外，所述安装架3的两侧立壁上均分别设置有一组所述第一安装结构；所述辅助触头组件可选择性地设置于两组所述第一安装结构中的任意一个上。
进一步描述为：所述辅助触头组件具有呈上下布置的辅助静触头20和辅助动触片21，所述辅助动触片21与所述推杆组件的上端部相连接；每组所述第一安装结构均具有设置于所述安装架3的侧立壁外表面上的第一静安装部、以及设置于所述安装架3的侧立壁上并同时位于所述第一静安装部下方的第一动安装部，其中所述第一静安装部供所述辅助静触头20安装用，所述第一动安装部供所述辅助动触片21伸出于所述安装架3外；并且当所述辅助触头组件设置于其中一组所 述第一安装结构上时，所述辅助动触片21伸出于所述安装架3外的部分置于所述辅助静触头20的下方，所述第一动安装部还能够与所述辅助动触片21相抵接、并在抵接处形成转动支点。
借由上述所述辅助触头组件与所述第一安装结构、及所述推杆组件间的相对连接关系描述，本实施例1所述辅助触头组件的工作方式为：当所述辅助触头组件设置于其中一组所述第一安装结构上时，所述辅助动触片21能够在所述推杆组件的驱动下局部向上移动、且局部绕所述转动支点朝下偏转，以使得所述辅助动触片21伸出于所述安装架3外的部分与所述辅助静触头20断开连接；或者所述辅助动触片21能够在所述推杆组件的驱动下局部向下移动、且局部绕所述转动支点朝上偏转复位，以使得所述辅助动触片21伸出于所述安装架3外的部分与所述辅助静触头20接触连通；届时，所述辅助触头组件成型为常闭型辅助触头组件。
以下，对本实施例所述高压直流接触器的重点改进结构，如：所述安装架3、所述辅助触头组件等进行详细说明。
在本实施例1中，所述安装架3为创新性新增的结构，所述安装架3采用绝缘材料制成，其底侧固定连接于该高压直流接触器的磁极板4上侧上，其内壁与所述推杆组件上端部之间不接触。因由绝缘材料制成，所述安装架3可隔绝所述主触头组件和所述辅助触头组件，实现了高低压隔绝，简单且可靠。
另外，为配合所述辅助静触头20结构，具体为：所述辅助静触头20具有为圆杆状的主体部200、设置于所述主体部200上端上的头部201、及设置于所述主体部200底端上的静接触部202，具体可见附图5和附图6所示。
所述安装架3作以下结构设计：所述安装架3的两侧立壁外表面上均分别凹设有沿竖向延伸的第一收容插槽30，两个所述第一收容插槽30均为与所述主体部200形状相匹配的长条弧形槽，均用于供所述辅助静触头20插装限位用，即：两个所述第一收容插槽30均为所述第一静安装部。可见附图1至附图3所示。
对于所述辅助静触头20结构，还补充说明有：所述辅助静触头20的所述头部201密封固定于该高压直流接触器的陶瓷罩壳上，特别的，所述头部201与设置于陶瓷罩壳外壁上的PCB电性连接，然后再通过PCB集成到该高压直流接触器的线圈组上，进而实现对低压端整体控制。
另外，为配合所述辅助动触片21结构，具体为：所述辅助动触片21采用弹 片结构，其具有一用于与所述推杆组件的上端部相连接的连接部210、一用于与所述辅助静触头20配合工作的动接触部211、及一衔接于所述连接部210与所述动接触部211之间的衔接部212，具体可见附图5和附图6所示。
所述安装架3作以下结构设计：所述安装架3的两侧立壁上分别形成有开口于该两侧立壁底侧的第一避位槽31，两个所述第一避位槽31分别对应的位于两个所述第一收容插槽30下方，即：两个所述第一避位槽31均为倒U形、并均为所述第一动安装部，分别供所述辅助动触片21活动穿过；并且，每一所述第一避位槽31的顶壁还均能够与所述辅助动触片21相抵接、并在抵接处形成转动支点。可见附图1至附图3所示。
进一步的，两个所述第一避位槽31分别供所述动接触部211活动穿过，并且所述动接触部211靠近所述衔接部212的一端能够与所述第一避位槽31的顶壁相抵接，并在抵接处形成所述转动支点。而且为利于所述动接触部211进行偏转，将所述第一避位槽31的顶壁设计为呈下凸弧形，并且所述第一避位槽31的顶壁内表面上形成有用于避让所述衔接部212的避位凹槽。
对于所述辅助动触片21结构，还补充说明有：所述动接触部211是需要发生偏转的部位，且将所述动接触部211设计为平片状，这样可增大其与所述辅助静触头20的接触面积。所述衔接部212和所述连接部210是随着所述推杆组件进行上下移动的部位，特别的，还将所述衔接部212设计为弯曲状，如波浪状，这样用于在所述动接触部211进行上下偏转时易发生形变，不会对所述动接触部211的上下偏转产生干涉，以及对所述动接触部211的向上偏转提供弹性复位力。
另外补充说明：在本实施例1提供的高压直流接触器结构中，所述辅助静触头20和所述辅助动触片21均配置为两个，因而在本实施例1中，所述安装架3的两侧立壁上分别形成有两个所述第一收容插槽30和一个所述第一避位槽31。
由上述可知，所述安装架3与所述辅助触头组件之间的安装组合方式，在不增加安装空间的基础上，还降低了组装难度，提高了组装效率和组装精度，提高了高压直流接触器的工作可靠性。
在本实施例1中，所述主触头组件、所述推杆组件和所述衔铁组件均采用高压直流接触器技术领域的常规结构，它们的具体结构分别说明如下：
所述主触头组件具有呈上下布置的主静触头10和主动触片11，所述主动触 片11与所述推杆组件的上端部相连接，所述主动触片11能够在所述推杆组件的驱动下向上移动以与所述主静触头10接触连通，或者向下移动以与所述主静触头10断开连接。
所述推杆组件包括推杆50、绝缘块51、限制支架52和触头弹簧53，所述推杆50下端与该高压直流接触器的动铁芯相连接，所述推杆50上端固定设置有所述绝缘块51，所述限制支架52竖立安装于所述绝缘块51上，所述触头弹簧53下端固定设置于所述绝缘块51中(具体的，所述绝缘块51上侧上凹设有供所述触头弹簧53下端定位插置用的安装嵌槽)，所述触头弹簧53上端抵接于所述主动触片11，以将所述主动触片11抵顶于所述限制支架52的顶内壁上；另外，所述辅助动触片21一端(具体为所述连接部210背向所述衔接部212的一端)通过注塑成型工艺固定嵌装于所述绝缘块51中。所述推杆组件的上端部即含有所述绝缘块51、所述限制支架52和所述触头弹簧53。
另外，对所述限制支架52做进一步说明，所述限制支架52可采用倒U形篮结构或者四边形框结构，当所述限制支架52采用倒U形篮结构时，所述限制支架52底侧与所述绝缘块51相卡接(此为高压直流接触器领域中常用到的公知技术手段)；当所述限制支架52采用四边形框结构时，所述限制支架52底侧通过注塑成型工艺埋设于所述绝缘块51中。
所述衔铁组件具有上衔铁60和下衔铁61，所述上衔铁60固定设置于所述安装架3的顶侧内壁上，所述下衔铁61置于所述主动触片11与所述触头弹簧53之间。一方面，在所述主动触片11与所述主静触头10吸合连通时，所述下衔铁61与所述上衔铁60之间能够形成磁回路，以实现对所述主动触片11产生一受力方向向上的电磁吸力，使得所述主动触片11与所述主静触头10吸合的更劳；另一方面，将所述上衔铁60安装于所述安装架3上，可很好的缩减高压直流接触器尺寸，进一步扩大高压直流接触器的适用场景。
实施例2：
相较于实施例1提供的高压直流接触器结构，本实施例2提供的高压直流接触器结构的主要区别在于：所述安装架3上配合于所述辅助动触片21的部分作了改变。除此之外的其它部件结构均与实施例1中相同。即：实施例2提供的高压直流接触器亦为高压直流接触器。
在本实施例2中，为配合所述辅助动触片21结构，所述安装架3作以下结构设计：所述安装架3的两侧立壁上分别形成有开口于该两侧立壁底侧及立边侧的第一避位槽31，两个所述第一避位槽31分别对应的位于两个所述第一收容插槽30下方，即：两个所述第一避位槽31均为倒L形、并均为所述第一动安装部，分别供所述辅助动触片21活动穿过；并且，每一呈倒L形的所述第一避位槽31的顶壁还均能够与所述辅助动触片21相抵接、并在抵接处形成转动支点。
进一步的，相同于实施例1，本实施例2中的每一呈倒L形的所述第一避位槽31的顶壁呈下凸弧形，且所述第一避位槽31的顶壁的内表面上还形成有用于避让所述衔接部212的避位凹槽。本实施例2中的所述第一避位槽31结构可参阅实施例4中的附图19和附图20所示。
进一步的，在本实施例2提供的高压直流接触器结构中，所述辅助静触头20和所述辅助动触片21均配置为两个，因而在本实施例2中，所述安装架3的两侧立壁上分别形成有两个所述第一收容插槽30和两个所述第一避位槽31，且两个所述第一避位槽31还呈镜像布置。
实施例3：
相较于实施例1提供的高压直流接触器结构，实施例3提供的高压直流接触器结构的主要区别在于：在所述安装架3的第一个侧立壁上设置有一组所述第一安装结构，在所述安装架3的第二个侧立壁上设置有一组第二安装结构；所述辅助触头组件可选择性地设置于所述第一安装结构或者所述第二安装结构上，并且当所述辅助触头组件设置于所述第一安装结构上时，所述辅助触头组件成型为常闭型辅助触头组件(具体可参阅附图7至附图14所示)；而当所述辅助触头组件设置于所述第二安装结构上时，所述辅助触头组件成型为常开型辅助触头组件(具体可参阅附图15至附图18所示)。即：本实施例3所述的高压直流接触器可兼容常闭型辅助触头组件形式和常开型辅助触头组件形式。
因此，相较于实施例1，本实施例3提供的高压直流接触器结构在具备实施例1提供的高压直流接触器结构优点的基础上，还兼容了常闭型辅助触头组件形式和常开型辅助触头组件形式，很好的扩大了高压直流接触器应用的通用性和适用性，从而可满足不同工作场景下的高压直流接触器使用需求。
在本实施例3中，优选的，所述辅助触头组件具有呈上下布置的辅助静触头 20和辅助动触片21，所述辅助动触片21与所述推杆组件的上端部相连接；
所述第一安装结构具有设置于所述安装架3的第一个侧立壁外表面上的第一静安装部、以及设置于所述安装架3的第一个侧立壁上并同时位于所述第一静安装部下方的第一动安装部，其中所述第一静安装部供所述辅助静触头20安装用，所述第一动安装部供所述辅助动触片21伸出于所述安装架3外；并且当所述辅助触头组件设置于所述第一安装结构上时，所述辅助动触片21伸出于所述安装架3外的部分置于所述辅助静触头20的下方，且所述第一动安装部能够与所述辅助动触片21相抵接、并在抵接处形成转动支点；
所述第二安装结构具有设置于所述安装架3的第二个侧立壁外表面上的第二静安装部、以及设置于所述安装架3的第二个侧立壁上并同时位于所述第二静安装部下方的第二动安装部，其中所述第二静安装部供所述辅助静触头20安装用，所述第二动安装部供所述辅助动触片21伸出于所述安装架3外；并且当所述辅助触头组件设置于所述第二安装结构上时，所述辅助动触片21伸出于所述安装架3外的部分置于所述辅助静触头20的下方，且所述第二动安装部始终与所述辅助动触片21不接触。
借由上述所述辅助触头组件与所述第一安装结构、所述第二安装结构、及所述推杆组件间的相对连接关系描述，本实施例3所述辅助触头组件的工作方式为：
①当所述辅助触头组件设置于所述第一安装结构上时，所述辅助动触片21能够在所述推杆组件的驱动下局部向上移动、且局部绕所述转动支点朝下偏转，以使得所述辅助动触片21伸出于所述安装架3外的部分与所述辅助静触头20断开连接(“断开连接”时的结构可参阅附图7至附图10所示)；或者所述辅助动触片21能够在所述推杆组件的驱动下局部向下移动、且局部绕所述转动支点朝上偏转复位，以使得所述辅助动触片21伸出于所述安装架3外的部分与所述辅助静触头20接触连通(“接触连通”时的结构可参阅附图11至附图14所示)；届时，所述辅助触头组件成型为常闭型辅助触头组件；
②当所述辅助触头组件设置于所述第二安装结构上时，所述辅助动触片21能够在所述推杆组件的驱动下向上移动以与所述辅助静触头20接触连通，或者向下移动以与所述辅助静触头20断开连接(“断开连接”时的结构可参阅附图15至附图18所示)；届时，所述辅助触头组件成型为常开型辅助触头组件。
另外说明：在所述辅助触头组件为常闭型触头组件情况下，上述工作说明及附图仅示出了所述辅助动触片21通过局部绕所述转动支点进行朝上或朝下偏转，来实现与所述辅助静触头20接触连通或者断开连接。而在实际应用过程中，通过改变所述辅助动触片21结构，还可实现所述辅助动触片21通过局部进行朝前或朝后翻转、朝左或朝右翻转等模式，来实现与所述辅助静触头20接触连通或者断开连接。因而，基于本专利详述的“所述辅助动触片21通过局部绕所述转动支点进行朝上或朝下偏转”方案，“所述辅助动触片21通过局部进行朝前或朝后翻转、朝左或朝右翻转等模式”，也应当涵盖在本专利的保护范围内。
以下，对本实施例3所述高压直流接触器的重点改进结构，如：所述安装架3、所述辅助触头组件等进行详细说明。
在本实施例3中，所述安装架3为创新性新增的结构，所述安装架3采用绝缘材料制成，其底侧固定连接于该高压直流接触器的磁极板4上侧上，其内壁与所述推杆组件上端部之间不接触。因由绝缘材料制成，所述安装架3可隔绝所述主触头组件和所述辅助触头组件，实现了高低压隔绝，简单且可靠。
另外，为配合所述辅助静触头20结构，具体为：所述辅助静触头20具有为圆杆状的主体部200、设置于所述主体部200上端上的头部201、及设置于所述主体部200底端上的静接触部202；具体见附图5和附图6所示。
所述安装架3作以下结构设计：所述安装架3的第一个侧立壁外表面上凹设有沿竖向延伸的第一收容插槽30，所述第一收容插槽30为与所述主体部200形状相匹配的长条弧形槽(可见附图8、附图12和附图17所示)，所述第一收容插槽30即为所述第一静安装部，供所述辅助静触头20插装用；所述安装架3的第二个侧立壁外表面上亦凹设有沿竖向延伸的第二收容插槽32(可见附图9、附图13和附图16所示)，所述第二收容插槽32为与所述主体部200形状相匹配的长条弧形槽，所述第二收容插槽32即为所述第二静安装部，供所述辅助静触头20插装用。
对于所述辅助静触头20、第一收容插槽30和所述第二收容插槽32的结构，还补充说明有：所述辅助静触头20的所述头部201密封固定于该高压直流接触器的陶瓷罩壳上，特别的，所述头部201与设置于陶瓷罩壳外壁上的PCB电性连接，然后再通过PCB集成到该高压直流接触器的线圈组上，进而实现对低压端整体控制。所述第一收容插槽30的竖向高度大于所述第二收容插槽32的竖向高度，主 要是为了配合下述的所述第一避位槽31及所述第二避位槽33结构。
另外，为配合所述辅助动触片21结构，具体为：所述辅助动触片21采用弹片结构，其具有一用于与所述推杆组件的上端部相连接的连接部210、一用于与所述辅助静触头20配合工作的动接触部211、及一衔接于所述连接部210与所述动接触部211之间的衔接部212，具体可见附图5和附图6所示。
所述安装架3作以下结构设计：所述安装架3的第一个侧立壁上形成有开口于该第一个侧立壁底侧的第一避位槽31，所述第一避位槽31位于所述第一收容插槽30的下方，即：所述第一避位槽31为倒U形、并为所述第一动安装部，供所述辅助动触片21活动穿过(可参阅附图8、附图12和附图17所示)；并且，当所述辅助触头组件设置于所述第一安装结构上时，所述第一避位槽31的顶壁还能够与所述辅助动触片21相抵接、并在抵接处形成转动支点；
所述安装架3的第二个侧立壁上亦形成有开口于该第二个侧立壁底侧的第二避位槽33，所述第二避位槽33位于所述第二收容插槽32的下方，即：所述第二避位槽33为倒U形、并为所述第二动安装部，供所述辅助动触片21活动穿过；并且，当所述辅助触头组件设置于所述第二安装结构上时，所述第二避位槽33始终与所述辅助动触片21不接触(可见附图9、附图13和附图16所示)，可通过将所述第二避位槽33的竖向高度设计为大于所述第一避位槽31的竖向高度来实现。
而之所以这样设计是因为：所述第二避位槽33不需要与所述辅助动触片21接触，不需要对所述辅助动触片21的移动产生影响或干涉；而所述第一避位槽31则需要对所述辅助动触片21的移动产生影响或干涉，要促进所述辅助动触片21进行局部偏转。
进一步的，对于所述第一避位槽31和所述辅助动触片21的结构，还补充说明有：Ⅰ)所述第一避位槽31供所述动接触部211活动穿过，并且所述动接触部211靠近所述衔接部212的一端能够与所述第一避位槽31的顶壁相抵接，并在抵接处形成所述转动支点；而且为利于所述动接触部211进行偏转，将所述第一避位槽31的顶壁设计为呈下凸弧形，并且所述第一避位槽31的顶壁内表面上形成有用于避让所述衔接部212的避位凹槽。Ⅱ)所述动接触部211是需要发生偏转的部位，将所述动接触部211设计为平片状，这样可增大其与所述辅助静触头20的接触面积。所述衔接部212和所述连接部210是随着所述推杆组件进行上下移 动的部位，特别的，还将所述衔接部212设计为弯曲状，如波浪状，这样用于在所述动接触部211进行上下偏转时易发生形变，从而不会对所述动接触部211的上下偏转产生干涉，以及对所述动接触部211的向上偏转提供弹性复位力。
另外补充：本实施例3提供的高压直流接触器结构中，所述辅助静触头20和所述辅助动触片21均配为两个，因而在本实施例3中，所述安装架3的第一个侧立壁上形成有两个所述第一收容插槽30和一个所述第一避位槽31，所述安装架3的第二个侧立壁上形成有两个所述第二收容插槽32和一个所述第二避位槽33。
另外，在本实施例3中，所述主触头组件、所述推杆组件和所述衔铁组件均采用高压直流接触器技术领域的常规结构，它们的具体结构见上述实施例1所示。
实施例4：
相较于实施例3提供的高压直流接触器结构，本实施例4提供的高压直流接触器结构的主要区别在于：所述安装架3上配合于所述辅助动触片21的部分作了改变。除此之外的其它部件结构均与实施例3中相同。即：本实施例4提供的高压直流接触器亦为兼容了常闭型辅助触头组件形式和常开型辅助触头组件形式的通用型高压直流接触器。
在本实施例4中，为配合所述辅助动触片21结构，所述安装架3作以下结构设计：参阅附图19至附图21所示，所述安装架3的第一个侧立壁上形成有开口于该第一个侧立壁底侧及立边侧的第一避位槽31，所述第一避位槽31位于所述第一收容插槽30的下方，即：所述第一避位槽31为倒L形、并为所述第一动安装部，用于供所述辅助动触片21活动穿过；并且，当所述辅助触头组件设置于所述第一安装结构上时，所述第一避位槽31的顶壁还能够与所述辅助动触片21相抵接、并在抵接处形成转动支点；
所述安装架3的第二个侧立壁上亦形成有开口于该第二个侧立壁底侧及立边侧的第二避位槽33，所述第二避位槽33位于所述第二收容插槽32的下方，即：所述第二避位槽33为倒L形、并为所述第二动安装部，用于供所述辅助动触片21活动穿过；并且，当所述辅助触头组件设置于所述第二安装结构上时，所述第二避位槽33始终与所述辅助动触片21不接触，可通过将所述第二避位槽33的竖向高度设计为大于所述第一避位槽31的竖向高度来实现(之所以这样设计的原因可参阅实施例3)。
进一步的，相同于实施例3，本实施例4中的每一呈倒L形的所述第一避位槽31的顶壁呈下凸弧形，且所述第一避位槽31的顶壁的内表面上还形成有用于避让所述衔接部212的避位凹槽。
进一步的，在本实施例4提供的高压直流接触器结构中，所述辅助静触头20和所述辅助动触片21均配置为两个，因而在本实施例4中，所述安装架3的第一个侧立壁上形成有两个所述第一收容插槽30和两个所述第一避位槽31，且两个所述第一避位槽31还呈镜像布置；所述安装架3的第二个侧立壁上亦形成有两个所述第二收容插槽32和两个所述第二避位槽33，且两个所述第二避位槽33还呈镜像布置。
综上所述，本发明所述高压直流接触器的结构新颖、合理，尺寸小、且可控，通用性和适用性强，可以满足不同工作场景下的高压直流接触器使用需求；另外，所述高压直流接触器还易加工和安装，提高了组装效率和组装精度。
在以上的描述中阐述了很多具体细节以便于充分理解本发明。但是以上描述仅是本发明的较佳实施例而已，本发明能够以很多不同于在此描述的其它方式来实施，因此本发明不受上面公开的具体实施的限制。同时任何熟悉本领域技术人员在不脱离本发明技术方案范围情况下，都可利用上述揭示的方法和技术内容对本发明技术方案做出许多可能的变动和修饰，或修改为等同变化的等效实施例。凡是未脱离本发明技术方案的内容，依据本发明的技术实质对以上实施例所做的任何简单修改、等同变化及修饰，均仍属于本发明技术方案保护的范围内。

Claims (22)

  1. 一种小尺寸高压直流接触器，包括主触头组件、辅助触头组件和推杆组件，所述推杆组件的上端部分别与所述主触头组件和所述辅助触头组件相连接，以驱动控制所述主触头组件和所述辅助触头组件分别进行工作状态切换；其特征在于：设有安装架(3)，所述安装架(3)罩设于所述推杆组件的上端部外，所述安装架(3)的侧立壁上设置有用于承接及限制所述辅助触头组件的第一安装结构，且通过所述第一安装结构与所述推杆组件组合，可使得所述辅助触头组件成型为常闭型辅助触头组件。
  2. 根据权利要求1所述的小尺寸高压直流接触器，其特征在于：所述安装架(3)为倒U形、并固定罩设于所述推杆组件的上端部外，且所述安装架(3)的两侧立壁的至少一个上设置有所述第一安装结构。
  3. 根据权利要求2所述的小尺寸高压直流接触器，其特征在于：所述安装架(3)的两侧立壁上均分别设置有一组所述第一安装结构；所述辅助触头组件可选择性地设置于两组所述第一安装结构中的任意一个上。
  4. 根据权利要求3所述的小尺寸高压直流接触器，其特征在于：所述辅助触头组件具有呈上下布置的辅助静触头(20)和辅助动触片(21)，所述辅助动触片(21)与所述推杆组件的上端部相连接；
    每组所述第一安装结构均具有设置于所述安装架(3)的侧立壁外表面上的第一静安装部、以及设置于所述安装架(3)的侧立壁上并同时位于所述第一静安装部下方的第一动安装部，其中所述第一静安装部供所述辅助静触头(20)安装用，所述第一动安装部供所述辅助动触片(21)伸出于所述安装架(3)外；
    并且当所述辅助触头组件设置于其中一组所述第一安装结构上时，所述辅助动触片(21)伸出于所述安装架(3)外的部分置于所述辅助静触头(20)的下方，且所述第一动安装部还能够与所述辅助动触片(21)相抵接、并在抵接处形成转动支点。
  5. 根据权利要求4所述的小尺寸高压直流接触器，其特征在于：当所述辅助触头组件设置于其中一组所述第一安装结构上时，所述辅助动触片(21)能够 在所述推杆组件的驱动下局部向上移动、且局部绕所述转动支点朝下偏转，以使得所述辅助动触片(21)伸出于所述安装架(3)外的部分与所述辅助静触头(20)断开连接；
    或者所述辅助动触片(21)能够在所述推杆组件的驱动下局部向下移动、且局部绕所述转动支点朝上偏转复位，以使得所述辅助动触片(21)伸出于所述安装架(3)外的部分与所述辅助静触头(20)接触连通；届时，所述辅助触头组件成型为常闭型辅助触头组件。
  6. 根据权利要求4所述的小尺寸高压直流接触器，其特征在于：所述安装架(3)的两侧立壁外表面上均分别凹设有沿竖向延伸的第一收容插槽(30)，两个所述第一收容插槽(30)均为所述第一静安装部，均供所述辅助静触头(20)插装用。
  7. 根据权利要求6所述的小尺寸高压直流接触器，其特征在于：所述辅助静触头(20)具有为圆杆状的主体部(200)、设置于所述主体部(200)上端上的头部(201)、及设置于所述主体部(200)底端上的静接触部(202)；
    所述第一收容插槽(30)为与所述主体部(200)形状相匹配的长条弧形槽。
  8. 根据权利要求6所述的小尺寸高压直流接触器，其特征在于：所述安装架(3)的两侧立壁上分别形成有开口于该两侧立壁底侧的第一避位槽(31)，两个所述第一避位槽(31)分别对应的位于两个所述第一收容插槽(30)下方，两个所述第一避位槽(31)均为所述第一动安装部，分别供所述辅助动触片(21)活动穿过；并且，每一所述第一避位槽(31)的顶壁还均能够与所述辅助动触片(21)相抵接、并在抵接处形成转动支点。
  9. 根据权利要求6所述的小尺寸高压直流接触器，其特征在于：所述安装架(3)的两侧立壁上分别形成有开口于该两侧立壁底侧及立边侧的第一避位槽(31)，两个所述第一避位槽(31)分别对应的位于两个所述第一收容插槽(30)下方，两个所述第一避位槽(31)均为所述第一动安装部，分别供所述辅助动触片(21)活动穿过；并且，每一所述第一避位槽(31)的顶壁还均能够与所述辅助动触片(21)相抵接、并在抵接处形成转动支点。
  10. 根据权利要求8或9所述的小尺寸高压直流接触器，其特征在于：所述辅助动触片(21)采用弹片结构，其具有一用于与所述推杆组件的上端部相连接 的连接部(210)、一用于与所述辅助静触头(20)配合工作的动接触部(211)、及一衔接于所述连接部(210)与所述动接触部(211)之间的衔接部(212)，所述动接触部(211)为平片状，所述动接触部(211)活动穿过所述第一避位槽(31)，并且所述动接触部(211)靠近所述衔接部(212)的一端能够与所述第一避位槽(31)的顶壁相抵接，并在抵接处形成所述转动支点。
  11. 根据权利要求2所述的小尺寸高压直流接触器，其特征在于：所述安装架(3)的第一个侧立壁上设置有一组所述第一安装结构，所述安装架(3)的第二个侧立壁上设置有一组第二安装结构；
    所述辅助触头组件可选择性地设置于所述第一安装结构或者所述第二安装结构上，并且当所述辅助触头组件设置于所述第一安装结构上时，所述辅助触头组件成型为常闭型辅助触头组件；而当所述辅助触头组件设置于所述第二安装结构上时，所述辅助触头组件成型为常开型辅助触头组件。
  12. 根据权利要求11所述的小尺寸高压直流接触器，其特征在于：所述辅助触头组件具有呈上下布置的辅助静触头(20)和辅助动触片(21)，所述辅助动触片(21)与所述推杆组件的上端部相连接；
    所述第一安装结构具有设置于所述安装架(3)的第一个侧立壁外表面上的第一静安装部、以及设置于所述安装架(3)的第一个侧立壁上并同时位于所述第一静安装部下方的第一动安装部，其中所述第一静安装部供所述辅助静触头(20)安装用，所述第一动安装部供所述辅助动触片(21)伸出于所述安装架(3)外；
    并且当所述辅助触头组件设置于所述第一安装结构上时，所述辅助动触片(21)伸出于所述安装架(3)外的部分置于所述辅助静触头(20)的下方，且所述第一动安装部能够与所述辅助动触片(21)相抵接、并在抵接处形成转动支点；
    所述第二安装结构具有设置于所述安装架(3)的第二个侧立壁外表面上的第二静安装部、以及设置于所述安装架(3)的第二个侧立壁上并同时位于所述第二静安装部下方的第二动安装部，其中所述第二静安装部供所述辅助静触头(20)安装用，所述第二动安装部供所述辅助动触片(21)伸出于所述安装架(3)外；
    并且当所述辅助触头组件设置于所述第二安装结构上时，所述辅助动触片(21)伸出于所述安装架(3)外的部分置于所述辅助静触头(20)的下方，且所述第二动安装部始终与所述辅助动触片(21)不接触。
  13. 根据权利要求12所述的小尺寸高压直流接触器，其特征在于：当所述辅助触头组件设置于所述第一安装结构上时，所述辅助动触片(21)能够在所述推杆组件的驱动下局部向上移动、且局部绕所述转动支点朝下偏转，以使得所述辅助动触片(21)伸出于所述安装架(3)外的部分与所述辅助静触头(20)断开连接；或者所述辅助动触片(21)能够在所述推杆组件的驱动下局部向下移动、且局部绕所述转动支点朝上偏转复位，以使得所述辅助动触片(21)伸出于所述安装架(3)外的部分与所述辅助静触头(20)接触连通；届时，所述辅助触头组件成型为常闭型辅助触头组件；
    而当所述辅助触头组件设置于所述第二安装结构上时，所述辅助动触片(21)能够在所述推杆组件的驱动下向上移动以与所述辅助静触头(20)接触连通，或者向下移动以与所述辅助静触头(20)断开连接；届时，所述辅助触头组件成型为常开型辅助触头组件。
  14. 根据权利要求12所述的小尺寸高压直流接触器，其特征在于：所述安装架(3)的第一个侧立壁外表面上凹设有沿竖向延伸的第一收容插槽(30)，所述第一收容插槽(30)即为所述第一静安装部，供所述辅助静触头(20)插装用；
    所述安装架(3)的第二个侧立壁外表面上亦凹设有沿竖向延伸的第二收容插槽(32)，所述第二收容插槽(32)即为所述第二静安装部，供所述辅助静触头(20)插装用；且所述第一收容插槽(30)的竖向高度大于所述第二收容插槽(32)的竖向高度。
  15. 根据权利要求14所述的小尺寸高压直流接触器，其特征在于：所述辅助静触头(20)具有为圆杆状的主体部(200)、设置于所述主体部(200)上端上的头部(201)、及设置于所述主体部(200)底端上的静接触部(202)；
    所述第一收容插槽(30)和所述第二收容插槽(32)均为与所述主体部(200)形状相匹配的长条弧形槽。
  16. 根据权利要求14所述的小尺寸高压直流接触器，其特征在于：所述安装架(3)的第一个侧立壁上形成有开口于该第一个侧立壁底侧的第一避位槽(31)，所述第一避位槽(31)位于所述第一收容插槽(30)的下方，所述第一避位槽(31)即为所述第一动安装部，供所述辅助动触片(21)活动穿过；并且，当所述辅助触头组件设置于所述第一安装结构上时，所述第一避位槽(31)的顶壁还能够与 所述辅助动触片(21)相抵接、并在抵接处形成转动支点；
    所述安装架(3)的第二个侧立壁上亦形成有开口于该第二个侧立壁底侧的第二避位槽(33)，所述第二避位槽(33)位于所述第二收容插槽(32)的下方，所述第二避位槽(33)即为所述第二动安装部，供所述辅助动触片(21)活动穿过；并且，当所述辅助触头组件设置于所述第二安装结构上时，所述第二避位槽(33)始终与所述辅助动触片(21)不接触；另外，所述第二避位槽(33)的竖向高度大于所述第一避位槽(31)的竖向高度。
  17. 根据权利要求14所述的小尺寸高压直流接触器，其特征在于：所述安装架(3)的第一个侧立壁上形成有开口于该第一个侧立壁底侧及立边侧的第一避位槽(31)，所述第一避位槽(31)位于所述第一收容插槽(30)的下方，所述第一避位槽(31)即为所述第一动安装部，用于供所述辅助动触片(21)活动穿过；并且，当所述辅助触头组件设置于所述第一安装结构上时，所述第一避位槽(31)的顶壁还能够与所述辅助动触片(21)相抵接、并在抵接处形成转动支点；
    所述安装架(3)的第二个侧立壁上亦形成有开口于该第二个侧立壁底侧及立边侧的第二避位槽(33)，所述第二避位槽(33)位于所述第二收容插槽(32)的下方，所述第二避位槽(33)即为所述第二动安装部，用于供所述辅助动触片(21)活动穿过；并且，当所述辅助触头组件设置于所述第二安装结构上时，所述第二避位槽(33)始终与所述辅助动触片(21)不接触；另外，所述第二避位槽(33)的竖向高度大于所述第一避位槽(31)的竖向高度。
  18. 根据权利要求16或17所述的小尺寸高压直流接触器，其特征在于：所述辅助动触片(21)采用弹片结构，其具有一用于与所述推杆组件的上端部相连接的连接部(210)、一用于与所述辅助静触头(20)配合工作的动接触部(211)、及一衔接于所述连接部(210)与所述动接触部(211)之间的衔接部(212)，所述动接触部(211)为平片状，所述动接触部(211)能够活动穿过所述第一避位槽(31)或者所述第二避位槽(33)；并且当所述动接触部(211)活动穿过所述第一避位槽(31)时，所述动接触部(211)靠近所述衔接部(212)的一端与所述第一避位槽(31)的顶壁相抵接，并在抵接处形成所述转动支点。
  19. 根据权利要求2所述的小尺寸高压直流接触器，其特征在于：所述安装架(3)的底侧固定连接于该高压直流接触器的磁极板(4)上侧上，且所述安装 架(3)内壁与所述推杆组件上端部之间不接触。
  20. 根据权利要求5或13所述的小尺寸高压直流接触器，其特征在于：所述主触头组件具有呈上下布置的主静触头(10)和主动触片(11)，所述主动触片(11)与所述推杆组件的上端部相连接，所述主动触片(11)能够在所述推杆组件的驱动下向上移动以与所述主静触头(10)接触连通，或者向下移动以与所述主静触头(10)断开连接。
  21. 根据权利要求20所述的小尺寸高压直流接触器，其特征在于：所述推杆组件包括推杆(50)、绝缘块(51)、限制支架(52)和触头弹簧(53)，所述推杆(50)下端与该高压直流接触器的动铁芯相连接，所述推杆(50)上端固定设置有所述绝缘块(51)，所述限制支架(52)竖立安装于所述绝缘块(51)上，所述触头弹簧(53)下端固定设置于所述绝缘块(51)中，所述触头弹簧(53)上端抵接于所述主动触片(11)，以将所述主动触片(11)抵顶于所述限制支架(52)的顶内壁上；另外，所述辅助动触片(21)一端固定嵌装于所述绝缘块(51)中。
  22. 根据权利要求21所述的小尺寸高压直流接触器，其特征在于：还设有衔铁组件，所述衔铁组件具有上衔铁(60)和下衔铁(61)，所述上衔铁(60)固定设置于所述安装架(3)的顶侧内壁上，所述下衔铁(61)置于所述主动触片(11)与所述触头弹簧(53)之间。
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