阅读说明：本技术 一种带簧片式辅助触点的高压密封直流接触器 (High-pressure sealing direct current contactor with reed type auxiliary contact ) 是由 许毅 周伟钢 程庆勇 黄彩丽 于 2021-09-22 设计创作，主要内容包括：本发明涉及一种带簧片式辅助触点的高压密封直流接触器,包括辅开基架,辅开基架内部固定有辅开接线片,辅开接线片的折弯延伸处末端配合安装有辅助触点连接器,辅开基架底部设有陶瓷座,陶瓷座外表面设有凹槽结构,且凹槽结构内设有灭弧磁钢,陶瓷座套设有导磁支架,陶瓷座内部设有屏蔽罩,屏蔽罩两侧上方设有凹槽,凹槽两侧分别穿插有第一弹簧片和第二弹簧片,辅开基架内的辅开接线片代替导线且固定在塑料件内部,规避了导线被压伤的风险,使用接线片与辅助触点配合,取消螺母的使用,解决了使用螺母退扭导致辅助触点不导通的风险。取消电路板的使用,解决了因为焊接不良,导致辅助触点不导通的问题。(The invention relates to a high-voltage sealing direct current contactor with a reed type auxiliary contact, which comprises an auxiliary opening base frame, wherein an auxiliary opening lug is fixed inside the auxiliary opening base frame, the tail end of a bending extending part of the auxiliary opening lug is matched and provided with an auxiliary contact connector, a ceramic seat is arranged at the bottom of the auxiliary opening base frame, the outer surface of the ceramic seat is provided with a groove structure, arc extinguishing magnetic steel is arranged in the groove structure, a magnetic conduction support is sleeved on the ceramic seat, a shielding cover is arranged inside the ceramic seat, grooves are arranged above two sides of the shielding cover, a first spring reed and a second spring reed are respectively inserted into two sides of each groove, the auxiliary opening lug in the auxiliary opening base frame replaces a lead and is fixed inside a plastic piece, the risk that the lead is crushed is avoided, the lug is matched with the auxiliary contact, the use of a nut is cancelled, and the risk that the auxiliary contact is not conducted due to the back twist of the nut is solved. The use of a circuit board is eliminated, and the problem that the auxiliary contact is not conducted due to poor welding is solved.)

1. The utility model provides a take leaf spring formula auxiliary contact's high-pressure seal direct current contactor, includes and assists division bed frame (1), ceramic seat (2), shield cover (3) and push rod group part, its characterized in that: an auxiliary opening wiring lug (11) is fixed inside the auxiliary opening base frame (1), the auxiliary opening wiring lug (11) is of a bent structure, and an auxiliary contact connector (12) is installed at the tail end of the bent extending part of the auxiliary opening wiring lug (11) in a matched mode;

the bottom surface of the auxiliary opening base frame (1) is in contact with a rubber pad, the bottom surface of the rubber pad is in contact with a ceramic seat (2), an opening is formed in the inner surface of the ceramic seat (2), a contact point rod (4) and an auxiliary contact point rod (5) are arranged in the opening, a groove structure is arranged on the outer surface of the ceramic seat (2), arc extinguishing magnetic steel (211) is arranged in the groove structure, a magnetic conduction support (212) is sleeved on the ceramic seat (2), and the arc extinguishing magnetic steel (211) is arranged in the groove structure of the ceramic seat (2);

ceramic holder (2) inside is equipped with shield cover (3), shield cover (3) both sides top is equipped with the opening, the opening both sides are fixedly connected with first spring leaf (31) and second spring leaf (32) respectively, first spring leaf (31) and second spring leaf (32) set up in shield cover (3) middle zone, auxiliary contact pole (5) are located first spring leaf (31) and second spring leaf (32) respectively and bend the form inside, the contact of auxiliary contact pole (5) is closed and the disconnection with closing control by the reed of two upper and lower distributions rather than being connected, first spring leaf (31) below is equipped with push rod group part, contact bridge (6) contact in contact point pole (4) and the push rod group part, the contact of first spring leaf (31) of push rod group part control and second spring leaf (32).

2. The high pressure sealed dc contactor with reed-type auxiliary contact according to claim 1, wherein: the auxiliary opening base frame (1) is provided with a plurality of first through holes and second through holes, the size of the first through holes of the auxiliary opening base frame (1) is matched with the diameter of the contact point rods (4), the contact point rods (4) penetrate through the first through holes, the size of the second through holes of the auxiliary opening base frame (1) is matched with the diameter of the auxiliary contact point rods (5), and the auxiliary contact point rods (5) are matched with the second through holes.

3. The high pressure sealed dc contactor with reed-type auxiliary contact according to claim 1, wherein: one end of each of the first spring piece (31) and the second spring piece (32) is bent, and one end, far away from the shell of the shielding case (3), of the first spring piece (31) is located at the bottom of one end, far away from the shell of the shielding case (3), of the second spring piece (32).

4. The high pressure sealed dc contactor with reed-type auxiliary contact according to claim 1, wherein: push rod group part is including contacting bridge (6), first armature (61) and second armature (62), the convex closure department of the below of contacting bridge (6) is through first armature (61) of fixedly connected with, contact bridge (6) top fixedly connected with second armature (62), second armature (62) is wider in first armature (61), the top of contacting bridge (6) is equipped with contact point pole (4).

5. A high-voltage sealed dc contactor according to claim 1, wherein said high-voltage sealed dc contactor is adapted to withstand short-circuit current, and comprises: a first plastic part (7) is fixedly mounted above the second armature iron (62), first supports (71) are fixed on two sides of the first plastic part (7), and openings are formed in the surfaces of the first supports (71).

6. A high-voltage sealed dc contactor according to claim 1, wherein said high-voltage sealed dc contactor is adapted to withstand short-circuit current, and comprises: first armature (61) bottom fixedly connected with spring (611), the one end fixed mounting that first armature (61) was kept away from in spring (611) has second working of plastics (8), second working of plastics (8) are disc structure, be equipped with second support (81) on second working of plastics (8), second support (81) are protruding column structure, second support (81) and first support (71) cooperation, second working of plastics (8) bottom center department is equipped with the opening, fixedly connected with push rod (9) in the opening.

Technical Field

The invention relates to the technical field of direct current contactors, in particular to a high-pressure sealing direct current contactor with a reed type auxiliary contact.

Background

The dc contactor is a contactor whose iron core is controlled by dc, and its load may be dc or ac. The core of the dc contactor is not the same as the ac contactor in that it has no eddy current, and thus is generally formed in a circular shape using mild steel or industrial pure iron. Because the attraction coil of the DC contactor is electrified with DC, the DC contactor has no impact starting current and does not generate the phenomenon of violent impact of an iron core, thereby having long service life and being suitable for occasions of frequent starting and stopping. The alternating current contactor and the direct current contactor can be selected to look up the catalogue of the electric appliance product according to the working voltage and the current of a line.

There are some disadvantages in the prior art:

in the practical application process, the auxiliary contact is used for switching on and off small current to play a role in switching on and off signals. At present, because of the problems of sealing and design, a sealing direct current contactor in the market is generally not provided with an auxiliary contact, the auxiliary contact of the sealing direct current contactor with the auxiliary contact is generally provided with a microswitch at the side edge of an arc extinguish chamber, a push rod is connected with a plastic sheet, and the plastic sheet moves along with the push rod and simultaneously stirs the microswitch to be switched on and off, namely, a signal is switched on through the on (or off) state of the microswitch; the auxiliary contact is usually welded through a wire or is switched on the auxiliary contact after the lug plate is fixed by using a nut, but the structure is small because of the stroke of the microswitch, the function of the contactor is influenced by the phenomenon that the state of the main contact is inconsistent with the state of the auxiliary contact easily, in addition, the auxiliary contact is arranged on the side face of the main contact, the occupied space is large, the arc extinguishing magnetic steel space needs to be reduced, the arc extinguishing of the main contact is not facilitated, and the unstable performance of the product during the breaking can be caused.

Disclosure of Invention

The invention mainly aims to provide a high-voltage sealing direct-current contactor with a reed type auxiliary contact, which can solve the problems that the stroke of a microswitch in a device is small, the state of a main contact is easy to be inconsistent with the state of the auxiliary contact, and the function of the contactor is influenced.

In order to achieve the purpose, the invention adopts the technical scheme that:

a high-pressure sealing direct current contactor with a reed type auxiliary contact comprises an auxiliary opening base frame, a ceramic seat, a shielding cover and a push rod set component, wherein an auxiliary opening lug is fixed inside the auxiliary opening base frame, the auxiliary opening lug is of a bent structure, and an auxiliary contact connector is installed at the tail end of a bent extending part of the auxiliary opening lug in a matched mode;

the bottom surface of the auxiliary opening base frame is in contact with a rubber pad, the bottom surface of the rubber pad is in contact with a ceramic seat, an opening is formed in the inner surface of the ceramic seat, a contact point rod and an auxiliary contact point rod are arranged in the opening, a groove structure is formed in the outer surface of the ceramic seat, arc extinguishing magnetic steel is arranged in the groove structure, the ceramic seat is sleeved with a magnetic conductive support, and the arc extinguishing magnetic steel is arranged in the groove structure of the ceramic seat;

the utility model discloses a ceramic seat, including ceramic seat, first spring piece, second spring piece, auxiliary contact pole, contact point pole and push rod group part, the inside shield cover that is equipped with of ceramic seat, shield cover both sides top is equipped with the opening, the opening both sides are the first spring piece of fixedly connected with and second spring piece respectively, first spring piece and second spring piece set up in the shield cover middle zone, the auxiliary contact pole is located first spring piece and second spring piece respectively and bends the form inside, the contact of auxiliary contact pole is closed and the disconnection with the closed control of closing by the reed of distributing about two rather than being connected, first spring piece below is equipped with push rod group part, contact point pole contacts with the contact bridging in the push rod group part, the contact of first spring piece of push rod group part control and second spring piece.

Preferably, the auxiliary opening base frame is provided with a plurality of first through holes and second through holes, the size of the first through holes of the auxiliary opening base frame is matched with the diameter of the contact point rods, the contact point rods penetrate through the first through holes, the size of the second through holes of the auxiliary opening base frame is matched with the diameter of the auxiliary contact point rods, and the auxiliary contact point rods are matched with the second through holes.

Preferably, one end of the first spring piece and one end of the second spring piece are bent, and the end, far away from the shielding case shell, of the first spring piece is located at the bottom of the end, far away from the shielding case shell, of the second spring piece.

Preferably, the push rod group part comprises a contact bridge, a first armature and a second armature, the first armature is fixedly connected to a convex hull below the contact bridge, the second armature is fixedly connected to the upper side of the contact bridge, the second armature is wider than the first armature, and a contact point rod is arranged above the contact bridge.

Preferably, a first plastic part is fixedly mounted above the second armature, first supports are fixed to two sides of the first plastic part, and openings are formed in the surfaces of the first supports.

Preferably, first armature bottom fixedly connected with spring, the one end fixed mounting that first armature was kept away from to the spring has the second working of plastics, the second working of plastics is disc structure, be equipped with the second support on the second working of plastics, the second support is protruding column structure, second support and first support cooperation, second working of plastics bottom center department is equipped with the opening, fixedly connected with push rod in the opening.

Compared with the prior art, the invention has the following beneficial effects:

1. this scheme uses the lug to replace the wire and fix inside the working of plastics, has avoidd the wire and has been crushed, leads to the risk of not switching on.

2. This scheme uses lug and auxiliary contact cooperation, cancels the use of nut, has solved and has used the nut to move back to turn round and lead to auxiliary contact nonconducting risk. The use of the circuit board is cancelled, and the risk that the auxiliary contact is not conducted due to poor welding (such as cold joint) is solved. And the manufacturing process is simpler and the cost is low.

3. The auxiliary contact is controlled to be closed and opened by two spring leaves which are matched with the auxiliary contact and are distributed up and down, the closing of the two spring leaves is controlled by a plastic column which is fixedly formed above a push rod group part and moves along with a push rod, and the closing time difference of the main contact and the auxiliary contact can be realized by adjusting the height of the plastic column.

Drawings

The disclosure of the present invention is illustrated with reference to the accompanying drawings. It is to be understood that the drawings are designed solely for the purposes of illustration and not as a definition of the limits of the invention. In the drawings, like reference numerals are used to refer to like parts. Wherein:

fig. 1 is an overall exploded view of a high-pressure sealed dc contactor with reed-type auxiliary contacts;

FIG. 2 is a cross-sectional view of a high pressure sealed DC contactor with reed-type auxiliary contacts;

FIG. 3 is an exploded view of the pusher assembly components of a high pressure sealed DC contactor with reed-type auxiliary contacts;

fig. 4 is a schematic structural diagram of an auxiliary opening lug of a high-voltage sealed direct-current contactor with a reed type auxiliary contact.

Reference numbers in the figures: 1-opening the base frame; 11-auxiliary opening wiring sheet; 12-an auxiliary contact connector; 2-a ceramic base; 211-arc extinguishing magnet steel; 212-a magnetically permeable support; 3-a shielding case; 31-a first spring plate; 32-a second spring plate; 4-a contact point bar; 5-auxiliary contact bar; 6-contact bridge; 61-a first armature; 62-a second armature; 611-a spring; 7-a first plastic part; 71-a first scaffold; 8-a second plastic part; 81-a second bracket; 9-push rod.

Detailed Description

In order to make the technical means, the creation features, the achievement purposes and the effects of the invention easy to understand, the invention is further described in detail with reference to the attached drawings. These drawings are simplified schematic views illustrating only the basic structure of the present invention in a schematic manner, and thus show only the constitution to which the present invention relates.

According to the technical scheme of the invention, a plurality of alternative structural modes and implementation modes can be provided by a person with ordinary skill in the art without changing the essential spirit of the invention. Therefore, the following detailed description and the accompanying drawings are merely illustrative of the technical aspects of the present invention, and should not be construed as all of the present invention or as limitations or limitations on the technical aspects of the present invention.

The technical solution of the present invention is further described in detail with reference to the accompanying drawings and examples.

As shown in fig. 1 to 4, a high-pressure sealed dc contactor with a reed-type auxiliary contact is characterized in that: the auxiliary opening type solar cell module comprises an auxiliary opening base frame 1, a ceramic seat 2, a shielding cover 3 and a push rod set component, wherein an auxiliary opening lug plate 11 is fixed inside the auxiliary opening base frame 1, the auxiliary opening lug plate 11 is of a bent structure, and an auxiliary contact connector 12 is installed at the tail end of a bent extending part of the auxiliary opening lug plate 11 in a matched mode;

the bottom surface of the auxiliary opening base frame 1 is in contact with a rubber pad, the bottom surface of the rubber pad is in contact with a ceramic seat 2, an opening is formed in the inner surface of the ceramic seat 2, a contact point rod 4 and an auxiliary contact point rod 5 are arranged in the opening, a groove structure is formed in the outer surface of the ceramic seat 2, arc extinguishing magnetic steel 211 is arranged in the groove structure, a magnetic conduction support 212 is sleeved on the ceramic seat 2, and the arc extinguishing magnetic steel 211 is arranged in the groove structure of the ceramic seat 2;

the inside shield cover 3 that is equipped with of ceramic seat 2, 3 both sides tops of shield cover are equipped with the opening, the opening both sides are first spring leaf 31 and second spring leaf 32 of fixedly connected with respectively, first spring leaf 31 and second spring leaf 32 set up at shield cover 3 middle zone, auxiliary contact pole 5 is located first spring leaf 31 and second spring leaf 32 respectively and bends the form inside, the contact of auxiliary contact pole 5 is closed and the disconnection with closing control by the reed of two upper and lower distributions rather than being connected, first spring leaf 31 below is equipped with push rod group part, contact bridge 6 contact in contact pole 4 and the push rod group part, the contact of first spring leaf 31 of push rod group part control and second spring leaf 32.

Specifically, the auxiliary opening lug plate 11 in the auxiliary opening base frame 1 replaces a lead and is fixed inside a plastic part, the lead is avoided being crushed to cause the non-conduction risk, the lug plate is matched with the auxiliary contact, the use of a nut is cancelled, and the non-conduction risk of the auxiliary contact caused by the back-twist of the nut is solved. The circuit board is omitted, the risk that the auxiliary contact is not conducted due to poor welding is solved, the manufacturing process is simpler, and the cost is low; traditional micro-gap switch dress is at the inboard edge of explosion chamber, and occupation space is big, need sacrifice the arc extinguishing magnet steel space of one side, sets up arc extinguishing magnet steel 211 in 2 groove structure on pottery seat, and the purpose of first spring leaf 31 and second spring leaf 32 in shield cover 3 lets auxiliary contact close control closure and disconnection by the reed rather than two upper and lower distributions of complex.

In this embodiment, a plurality of first through holes and second through holes are formed in the auxiliary opening base frame 1, the size of the first through hole of the auxiliary opening base frame 1 is matched with the size of the diameter of the contact point rod 4, the contact point rod 4 penetrates through the first through hole, the size of the second through hole of the auxiliary opening base frame 1 is matched with the size of the diameter of the auxiliary contact point rod 5, and the auxiliary contact point rod 5 is matched with the second through hole.

One end of each of the first spring piece 31 and the second spring piece 32 is bent, and one end of the first spring piece 31, which is far away from the shell of the shielding case 3, is located at the bottom of one end of the second spring piece 32, which is far away from the shell of the shielding case 3.

Specifically, the coil is electrified, the push rod group component moves upwards under the action of electromagnetic attraction, the contact bridge 6 is closed with the contact point rod 4, and meanwhile, the push rod group component drives the first spring piece 31 to be closed with the second spring piece 32, so that the auxiliary contact is conducted; the coil is powered off, the push rod group component moves downwards under the action of the spring 611 and the self gravity of the push rod group component, the contact bridge 6 is disconnected with the contact point rod 4, meanwhile, the protrusion on the support moves downwards, the first spring piece 31 is disconnected with the second spring piece 32, the auxiliary contact is disconnected, and the consistency of the response of the auxiliary contact and the main contact can be effectively ensured through the structure.

In this embodiment, the push rod set component includes a contact bridge 6, a first armature 61 and a second armature 62, the first armature 61 is fixedly connected to a convex hull below the contact bridge 6, the second armature 62 is fixedly connected to the upper side of the contact bridge 6, the second armature 62 is wider than the first armature 61, and a contact point rod 4 is arranged above the contact bridge 6.

Specifically, since the second armature 62 is wider than the first armature 61, the second armature 62 is located above the first armature 61 and is wider than the first armature 61; since the second armature 62 is wider than the first armature 61, the external magnetic field extending from the wider portion of the second armature 62 reinforces the internal magnetic field formed by the first armature 61 and the second armature 62. The part of the first armature 61 protruding from the middle and contacting the bottom of the contact bridge 6 forms an additional magnetic circuit because the part of the second armature 62 is wider than the first armature 61, which can strengthen the middle magnetic circuit and enhance the upward electromagnetic attraction effect.

In this embodiment, a first plastic part 7 is fixedly mounted above the second armature 62, first brackets 71 are fixed to two sides of the first plastic part 7, and an opening is formed in the surface of each first bracket 71.

First armature 61 bottom fixedly connected with spring 611, the one end fixed mounting that first armature 61 was kept away from to spring 611 has second working of plastics 8, second working of plastics 8 is disc structure, be equipped with second support 81 on the second working of plastics 8, second support 81 is protruding column structure, second support 81 and first support 71 cooperation, 8 bottom centers of second working of plastics department is equipped with the opening, fixedly connected with push rod 9 in the opening.

Specifically, when the contactor body meets the short-circuit current, because the short-circuit current value is too big, when the electric current passes through the contact bridge 6, form the magnetic circuit between first armature 61 and the second armature 62, produce ascending electromagnetic attraction, this electromagnetic attraction is used for resisting the short-circuit current shrink and causes to contact and produce decurrent electric repulsion between pole and the contact bridge 6, promotes the anti short-circuit capability of relay, promotes the safety in utilization of relay.

In the invention, the auxiliary opening lug plate 11 in the auxiliary opening base frame 1 replaces a lead and is fixed in a plastic part, the risk of non-conduction caused by pressing the lead is avoided, the lug plate is matched with an auxiliary contact, the use of a nut is cancelled, the risk of non-conduction caused by using the nut to back twist is solved, the arc extinguishing magnetic steel 211 is arranged in the groove structure of the ceramic seat 2, the magnetic conduction bracket 212 sleeved on the ceramic seat 2 is used for enhancing the effect of a magnetic field, and the auxiliary contact is controlled to be closed and opened by the closing of the first spring piece 31 and the second spring piece 32 which are matched with the auxiliary contact and are distributed up and down; the combination and separation of the two reeds are controlled by the movement above the push rod assembly component. The coil is electrified, the push rod group component moves upwards under the action of electromagnetic attraction, the contact bridge 6 is closed with the contact point rod 4, and meanwhile, the plastic column drives the first spring piece 31 to be closed with the second spring piece 32, so that the auxiliary contact is conducted; when the coil is powered off, the contact bridge 6 is disconnected with the contact point rod 4, meanwhile, the bulge on the bracket moves downwards, the first spring piece 31 is disconnected with the second spring piece 32, the auxiliary contact is disconnected, and the consistency of response between the auxiliary contact and the main contact can be more effectively ensured through the structure; when the contactor body meets short-circuit current, because the short-circuit current value is too big, when the electric current passes through the contact bridge 6, form the magnetic circuit between first armature 61 and the second armature 62, produce ascending electromagnetic attraction, first armature 61 below sets up spring 611 simultaneously, electromagnetic attraction and the elasticity of spring 611 can be used for resisting the short-circuit current shrink and cause and produce decurrent electric repulsion between contact pole and the contact bridge 6, promote the anti short-circuit capability of relay, promote the safety in utilization of relay, the device has strengthened anti short-circuit capability on the basis of prior art to comparing, can provide sufficient contact pressure under the characteristics that keep the product to save cost, with the electric repulsion that the big short-circuit current that the resistance spring received caused, and have magnetic efficiency height, the difficult saturated characteristics of magnetic circuit.

In this document, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

The above-mentioned embodiments, objects, technical solutions and advantages of the present invention are further described in detail, it should be understood that the above-mentioned embodiments are only specific embodiments of the present invention, and are not intended to limit the scope of the present invention, and any modifications, equivalent substitutions, improvements and the like made within the spirit and principle of the present invention should be included in the scope of the present invention.