CN212209359U - Novel three-phase magnetic latching relay - Google Patents
Novel three-phase magnetic latching relay Download PDFInfo
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- CN212209359U CN212209359U CN202021255578.9U CN202021255578U CN212209359U CN 212209359 U CN212209359 U CN 212209359U CN 202021255578 U CN202021255578 U CN 202021255578U CN 212209359 U CN212209359 U CN 212209359U
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Abstract
The utility model discloses a novel three-phase magnetic latching relay, the structure of which comprises three parts, namely a shell part, a control circuit part and a magnetic circuit part, wherein the shell part consists of a shell, an upper cover and a lower cover; the control loop part comprises an L1 control group loop, an L2 control group loop, an L3 control group loop and a mutual inductor, each group of control loops consists of a movable contact, a movable spring seat, a movable spring, a stationary contact and a stationary spring seat, and the middle circles of the stationary spring seat of the L1 control group, the stationary spring seat of the L2 control group, the movable spring seat of the L3 control group, the movable spring seat of the L2 control group and the movable spring seat of the L1 control group are formed by welding in a segmented mode; the magnetic circuit system part comprises a coil rack, a bracket, a pushing sheet, a magnetic steel component, an enameled wire, an iron core and a yoke. The utility model discloses a three-phase magnetic latching relay has reasonable in design, long service life, and material saving, preparation cost low grade advantage can widely popularize and apply.
Description
[ technical field ] A method for producing a semiconductor device
The utility model belongs to the technical field of relay equipment, concretely relates to novel three-phase magnetic latching relay.
[ background of the invention ]
With the continuous development of national intelligent power grids, prepayment meters are increasingly widely applied to power grids, three-phase electric meters are widely used, the types and varieties of the three-phase electric meters are different, the three-phase electric meters are classified into two types according to wiring, one type is a traditional interval wiring three-phase electric meter, the other type is a newly-produced symmetrical wiring three-phase electric meter, a connecting port of the traditional interval wiring three-phase electric meter is L1 phase distributed at an input port of a port for output, L2 phase is distributed at the input port for output, L3 phase is distributed at the input port of the port for output, a zero line is led to be distributed at the port and the port, the existing one-input two-output, three-input four-output and five-input six-output three-phase relays can meet the use requirements, and because the wiring of the electric meters is messy, the wiring is not standard, the wiring is missed, the potential safety hazard of short circuit is caused by overlapping cross wiring, the port L1 phase is distributed at the port input port for output, the port L2 phase is distributed at the port input port for output, the port L3 phase is distributed at the port input port for output, the zero line is distributed at the middle port and the port, the three ports on the left side are live wire input, the two ports in the middle are one-in one-out of the zero line, the three ports on the right side are live wire output, due to the continuous improvement of safety performance and the modification of relevant standards and policies, the three-phase ammeter of interval connection of the traditional ammeter is gradually replaced by a new three-phase ammeter of symmetrical connection, the three-phase relay is a more important component arranged in the three-phase ammeter, the traditional ammeter can meet the requirement by adopting a traditional three-phase relay in the field with low requirement on safety performance, the three-phase ammeter of symmetrical connection is adopted in the field with high requirement on safety performance, the three-phase ammeter of symmetrical connection adopts the traditional three-phase relay in the built-in, manufacturing cost also can increase substantially, if develop the three-phase magnetic latching relay of a customization type symmetric distribution more and satisfy the market demand, for satisfying the market demand the utility model discloses specially develop a novel three-phase magnetic latching relay.
[ Utility model ] content
The utility model provides a novel three-phase magnetic latching relay to solve traditional three-phase relay life weak point, problem such as manufacturing cost height.
In order to realize the technical purpose, the design scheme of the utility model is as follows:
a novel three-phase magnetic latching relay structurally comprises three parts, namely a shell part, a control circuit part and a magnetic circuit system part, and is characterized in that the shell part consists of a shell, an upper cover and a lower cover, wherein the shell is arranged between the upper cover and the lower cover;
the control loop part comprises an L1 control group loop, an L2 control group loop, an L3 control group loop and a mutual inductor, and each group of control loop consists of a movable contact, a movable spring seat, a movable spring, a fixed contact and a fixed spring seat; the mutual inductor is designed to penetrate through a movable spring seat, a static contact is arranged on the static spring seat, a movable contact is arranged on a movable spring, and a movable spring combination is arranged on the movable spring seat; the static spring seat of the L1 control group and the movable spring seat of the L1 control group form an L1 control group, and the static spring seat of the L1 control group crosses from the lower parts of the static contact and the movable contact of the L2 control group and the L3 control group to the left surface of the movable spring seat of the L1 control group to form a control loop group; the static spring seat of the L2 control group and the movable spring seat of the L2 control group form an L2 control group, and the static spring seat of the L2 control group is wound to the left of the movable spring seat of the L2 control group from the back of the magnetic circuit part to form a control loop group; the static spring seat of the L3 control group and the movable spring seat of the L3 control group form an L3 control group, the L3 control group is arranged and distributed on the left surface of the magnetic circuit part, and the distance between the static spring seat of the L3 control group and the movable spring seat of the L3 control group is large, so that the distance between the next 2 pins can be increased; the middle circles of the static spring seat of the L1 control group, the static spring seat of the L2 control group, the dynamic spring seat of the L3 control group, the dynamic spring seat of the L2 control group and the dynamic spring seat of the L1 control group are formed by welding in sections;
the magnetic circuit part includes coil former, support, promotes piece, magnetic steel component, enameled wire, iron core, yoke, and the yoke sets up in the both sides of coil former, and the centre penetrates the iron core, and magnetic steel component sets up between two yokes, and the support is settled on magnetic steel component, and the winding has the enameled wire on the coil former, promotes piece design draw-in groove, and the movable contact spring that blocks respectively in magnetic steel component and each control group of control circuit interconnects.
Preferably, the number of the movable spring pieces of each control group is 3, wherein 2 movable spring pieces are made of red copper sheets, and the middle part and the right part of each control group are designed into U-shaped shapes; the rest movable spring is made of beryllium copper material, and the head is provided with a bending design.
Preferably, the magnetic steel assembly comprises 2 armature plates and permanent magnet blocks and a plastic body.
Preferably, 2 armature plates are made of DT4E material.
Preferably, the permanent magnet block is made of ferrite.
Preferably, the plastic body is made of a wear-resistant PBT material.
Preferably, the coil assembly is composed of a coil frame, an enameled wire, an iron core and a yoke.
Preferably, the iron core and the yoke are made of DT4E material.
Preferably, the enameled wire is manufactured by wrapping a layer of insulating paint outside the enameled wire with a pure copper wire at the inner core.
Preferably, the coil former is made of a wear resistant PBT material.
Through this technical scheme, can realize following technological effect:
(1) the static spring seat of the L1 control group, the static spring seat of the L2 control group, the movable spring seat of the L3 control group, the movable spring seat of the L2 control group and the movable spring seat of the L1 control group are welded into a whole by adopting a sectional welding process, and 2 parts are welded into a whole, so that the processing of the parts and the cost of the materials are facilitated, if the materials are unfolded in a sectional mode to form a Z shape, the arrangement is not facilitated during processing, the intermediate waste is more, the material and the processing cost are greatly increased, the sectional type can be divided into 2 parts, an unfolded plane diagram is in an L shape and an I shape, the shape can be reasonably arranged and processed, the intermediate welding is integrated to achieve the same effect, the manufacturing cost is effectively reduced, in addition, the I-shaped parts of the same size can be processed in the largest quantity, the plates can be processed by 20, the L-shaped parts can be processed by 12, the number of the machinable parts of the Z-shaped part is the least, and only 4 parts can be machined, so that the Z-shaped part can be machined into I-shaped and L-shaped parts, the manufacturing cost can be effectively reduced, and the economic benefit can be improved.
In addition, the innovative design of the segmented welding process is adopted, and two advantages are achieved, namely the utilization rate of plate materials is high when parts are machined, waste materials are few, the environment is protected, energy is saved, and the cost is reduced; secondly, according to the special design of the installation of each part of the utility model product, for example, the utility model product needs to penetrate into the mutual inductor, and the mutual inductor must adopt a sectional structure in order to achieve the effect that the mutual inductor can not fall out after penetrating into the mutual inductor, and a part larger than the hole of the mutual inductor is welded at the rear end after the mutual inductor penetrates into the mutual inductor, so that the design can prevent the mutual inductor from falling out; the welding must use the specialized equipment to weld, belong to the resistance welding type apparatus, overlap two parts 5-8mm, use the resistance welding apparatus to start, the resistance welding apparatus is suitable for the mass production, the welding time is short, can weld about 1 second and finish.
(2) The L3 control group is arranged and laid out on the left side of the magnetic circuit part, and the distance between the static spring seat of the L3 control group and the movable spring seat of the L3 control group is larger, so that more than 2 pins can be placed, and a zero line terminal can be laid out here to make up enough space.
(3) The three-phase magnetic latching relay shell is internally designed to be connected with a corresponding movable spring seat, a certain distance is designed when the static spring seats of the L1 and L2 control groups stride over adjacent control groups, the interphase short circuit of the three-phase relay is avoided, crossing connection is completed in the shell, the outside does not need cross wiring in practical application wiring, the condition that the outside wiring is crossed and overlapped mutually is favorably avoided, a fire disaster possibly caused by short circuit exists when an insulating skin outside the connecting wire is aged or damaged, a light person burns out a house or a warehouse and articles, a heavy person causes injury of personnel, and the design is favorable for avoiding the occurrence of unsafe conditions.
(4) The magnetic steel assembly sets up between two yokes, the support is settled on the magnetic steel assembly and is designed protruding nail and shell fixed coordination mutually, the winding has the enameled wire on the coil former, promote piece design draw-in groove, the movable contact spring in magnetic steel driving lever and each control group of control circuit of card magnet assembly connects mutually respectively, the reasonable layout design of collocation shell again, the spacing synchronous motion that makes of draw-in groove, its contact is opened, the state of closing is kept by the produced magnetic force of permanent magnet, when the contact of relay need open or close the state, only need with positive (anti) DC pulse voltage excitation coil, the relay just accomplished in the twinkling of an eye open with the state conversion who closes. Normally, when the contact is in the hold state, the coil does not need to be energized, and the relay state can be maintained by only the magnetic force of the permanent magnet.
(5) The movable spring of each control group is overlapped by 3 and is used simultaneously, the movable spring and the movable spring are made of red copper sheets with better conductivity, the U-shaped shape is designed at the middle part and the right part, the stress of the movable spring is effectively reduced by the design, the movable spring is made of beryllium copper materials with elasticity, the head is bent, the contact is in buffer effect when in contact, and the design can prolong the service life of the product.
(6) The traditional interval wiring three-phase electric meter connecting terminal is inconvenient to connect if a novel electric meter design scheme is adopted; and the utility model discloses a symmetrical formula wiring three-phase ammeter connecting terminal adopts new-type ammeter collocation the utility model discloses a symmetrical formula's three-phase magnetic latching relay is more reasonable, and design is convenient, material saving, greatly reduced cost.
[ description of the drawings ]
Fig. 1 is an external view schematic diagram of the novel three-phase magnetic latching relay of the present invention;
fig. 2 is a schematic structural diagram of the novel three-phase magnetic latching relay of the present invention;
FIG. 3 is a schematic view of the arrangement of parts of the present invention;
fig. 4 is a front view of the magnetic steel assembly of the present invention;
fig. 5 is a cross-sectional view of the magnetic steel assembly of the present invention;
fig. 6 is a front view of the coil assembly of the present invention;
fig. 7 is a cross-sectional view of the coil assembly of the present invention;
fig. 8 is a schematic structural view of the movable contact spring of each control group of the present invention;
fig. 9 is a schematic view of the contact design of the present invention;
FIG. 10 is a schematic view of a conventional spacedly-wired three-phase electric meter connection terminal;
fig. 11 is the utility model discloses a symmetrical formula wiring three-phase ammeter connecting terminal sketch map.
[ detailed description ] embodiments
The present invention will be described in further detail with reference to the accompanying drawings in conjunction with the following embodiments. It should be emphasized that the following description is merely exemplary in nature and is not intended to limit the scope of the invention or its application.
As shown in fig. 1 and 2, a novel three-phase magnetic latching relay comprises three major parts, namely a shell part, a control loop part and a magnetic circuit system part; the shell part consists of a shell 11, an upper cover 12 and a lower cover 12, wherein the shell is arranged between the upper cover and the lower cover, and a groove position clamping groove and a cavity for positioning each part are designed in the shell; the product belongs to a three-phase magnetic latching relay, and the control loop part comprises an L1 control group loop, an L2 control group loop, an L3 control group loop and a mutual inductor, wherein each group of control loop consists of a movable contact, a movable spring seat, a movable spring, a static contact and a static spring seat; 21 is the static spring seat of L1 control group, 22 is the static spring seat of L2 control group, 23 is the static spring seat of L3 control group, 24 is the static contact and the movable contact of three control group, the left side is the static contact, the right side is the movable contact, 25 is the mutual-inductor of three control group, the design is penetrated on the movable spring seat, 26 is the movable spring seat of L3 control group, 27 is the movable spring seat of L2 control group, 28 is the movable spring seat of L1 control group, 29 is the movable reed of each control group, the reed quantity is 3, the static contact is settled on the static spring seat, the movable contact is settled on the movable reed, the movable reed combination is settled on the movable spring seat, the three adopts the riveted mode respectively and lets its fixed constitution a combination.
The static spring seat 21 of the L1 control group and the movable spring seat 28 of the L1 control group form an L1 control group, and the static spring seat of the L1 control group crosses from the lower parts of the static contact and the movable contact of the L2 control group and the L3 control group to the left surface of the movable spring seat 28 of the L1 control group to form a control loop group; the static spring seat 22 of the L2 control group and the dynamic spring seat 27 of the L2 control group form an L2 control group, and the static spring seat of the L2 control group is wound to the left of the dynamic spring seat 27 of the L2 control group from the back of the magnetic circuit part to form a control loop group; the static spring seat 23 of the L3 control group and the dynamic spring seat 26 of the L3 control group form an L3 control group; the L3 control group is arranged and laid out on the left side of the magnetic circuit part, and the distance between the static spring seat 23 of the L3 control group and the movable spring seat 26 of the L3 control group is larger, so that the distance of more than 2 pins can be arranged, and a zero line terminal can be laid out here, so that enough space is reserved.
The three-phase magnetic latching relay casing is internally designed to be connected with the corresponding movable spring seat, the static spring seats of the L1 and L2 control groups are designed to have a certain distance when crossing adjacent control, the interphase short circuit of the three-phase relay is avoided, crossing connection is completed in the casing, the outside does not need cross wiring when wiring is actually applied, the condition that the outside wiring is crossed and overlapped is favorably avoided, a fire disaster which is possibly caused by short circuit exists when an insulating skin outside the connecting wire is aged or damaged, a light person burns out a house or a warehouse and articles, and a serious person causes injury of personnel, and the design is favorable for avoiding the occurrence of unsafe conditions.
The magnetic circuit system part comprises a coil frame 31, a support 32, a pushing piece 33, a magnetic steel assembly 34, an enameled wire 35, an iron core 36 and a yoke 37, wherein the number of the yoke 37 is 2, the yoke 37, the iron core 36 and the coil frame 31 are respectively arranged at two sides and one side of the coil frame 31, the iron core 36 is inserted in the middle, the yoke 37, the iron core 36 and the coil frame 31 are riveted into a whole by adopting a riveting mode, the magnetic steel assembly 34 is arranged between the two yokes 37, the support 32 is arranged on the magnetic steel assembly 34 and is designed with a convex pin and a shell which are mutually and fixedly matched, the enameled wire 35 is wound on the coil frame 31, the pushing piece 33 is designed with a clamping groove, the magnetic steel which is respectively clamped into the magnetic steel of the magnetic steel assembly and a movable spring leaf in each control group of a control loop are mutually connected, the reasonable layout design of the shell and the clamping groove limit are matched to enable the, the relay completes the switching of the open and close state instantly only by exciting the coil with positive (negative) direct current pulse voltage. Normally, when the contact is in the hold state, the coil does not need to be energized, and the relay state can be maintained by only the magnetic force of the permanent magnet.
The static spring seat 21 of L1 control group, the static spring seat 22 of L2 control group, the movable spring seat 26 of L3 control group, the movable spring seat 27 of L2 control group, the movable spring seat 28 of L1 control group middle circle department has adopted the segmentation welding process, it is integrative that there are 2 parts welding connection, be favorable to the processing of part like this, reduce the cost of processing and material, if adopt the mode material of segmentation to expand the back and become the Z type, be unfavorable for arranging during processing, middle waste material is more, make the cost of material and processing increase greatly, the sectional type can be divided into 2 parts, it is L type and I type to expand the plan view, processing can be rationally arranged to such shape, middle welding is as an organic whole can reach same effect, effectual reduction cost of manufacture like this.
As shown in fig. 3, the number of the I-shaped parts of the plate with the same size can be processed is the largest, the number of the plates can be processed is 20, the number of the L-shaped parts is the next, the number of the plates can be processed is 12, the number of the Z-shaped parts can be the smallest, and only 4 parts can be processed, so that the I-shaped parts and the L-shaped parts can be processed, the manufacturing cost can be effectively reduced, and the economic benefit can be improved.
As shown in fig. 4 and 5, the magnetic steel assembly 34 includes 2 armature pieces 341, a permanent magnet piece 342, and a plastic body 343, which are processed by a special process, the 2 armature pieces 341 and the permanent magnet piece 342 are installed in a positioning fixture of an injection mold, and then an injection molding process is performed, after injection molding, the plastic body 343 wraps the 2 armature pieces 341 and the permanent magnet piece 342 to form an integral body, which is called a magnetic steel assembly, the 2 armature pieces 341 are made of DT4E material, the permanent magnet piece 342 is made of ferrite material, and the plastic body 343 is made of wear-resistant PBT material.
As shown in fig. 6 and 7, the coil assembly is composed of a coil frame 31, an enameled wire 35, an iron core 36 and a yoke 37, the iron core 36 and the yoke 37 are made of DT4E material, the inner core of the enameled wire 35 is made of pure copper wire, and the outer part of the enameled wire is wrapped by a layer of insulating varnish to make the coil frame 31 made of relatively wear-resistant PBT material; the iron core 36 and the yoke 37 are fixed into a whole by adopting a riveting process, and the magnetic conduction effect of the riveting process is good.
As shown in fig. 8 and 9, the movable spring plate 29 of each control group is overlapped by 3 plates and used simultaneously, the movable spring plate 291 and the movable spring plate 292 are made of red copper plates with good conductivity, the middle part and the right part are designed into a U-shaped shape, the design effectively reduces the stress of the movable spring plate, the movable spring plate 293 is made of beryllium copper materials with elasticity, the head part is provided with a bending design, the contact has a buffering effect when in contact, the design can prolong the service life of the product, and the contact 24 is designed into a double-contact design.
As shown in fig. 10 and 11, in application, the conventional connection terminal of the three-phase electric meter with interval wiring is inconvenient to connect if a new electric meter design scheme is adopted; the utility model discloses a symmetrical formula wiring three-phase ammeter connecting terminal adopts new-type ammeter collocation the utility model discloses a symmetrical formula's three-phase magnetic latching relay is more reasonable, and the design is convenient, material saving, greatly reduced cost.
Claims (10)
1. A novel three-phase magnetic latching relay structurally comprises three parts, namely a shell part, a control circuit part and a magnetic circuit system part, and is characterized in that the shell part consists of a shell, an upper cover and a lower cover, wherein the shell is arranged between the upper cover and the lower cover;
the control loop part comprises an L1 control group loop, an L2 control group loop, an L3 control group loop and a mutual inductor, and each group of control loop consists of a movable contact, a movable spring seat, a movable spring, a fixed contact and a fixed spring seat; the mutual inductor is designed to penetrate through a movable spring seat, a static contact is arranged on the static spring seat, a movable contact is arranged on a movable spring, and a movable spring combination is arranged on the movable spring seat; the static spring seat of the L1 control group and the movable spring seat of the L1 control group form an L1 control group, and the static spring seat of the L1 control group crosses from the lower parts of the static contact and the movable contact of the L2 control group and the L3 control group to the left surface of the movable spring seat of the L1 control group to form a control loop group; the static spring seat of the L2 control group and the movable spring seat of the L2 control group form an L2 control group, and the static spring seat of the L2 control group is wound to the left of the movable spring seat of the L2 control group from the back of the magnetic circuit part to form a control loop group; the static spring seat of the L3 control group and the movable spring seat of the L3 control group form an L3 control group, the L3 control group is arranged and distributed on the left surface of the magnetic circuit part, and the distance between the static spring seat of the L3 control group and the movable spring seat of the L3 control group is large, so that the distance between the next 2 pins can be increased; the middle circles of the static spring seat of the L1 control group, the static spring seat of the L2 control group, the dynamic spring seat of the L3 control group, the dynamic spring seat of the L2 control group and the dynamic spring seat of the L1 control group are formed by welding in sections;
the magnetic circuit part includes coil former, support, promotes piece, magnetic steel component, enameled wire, iron core, yoke, and the yoke sets up in the both sides of coil former, and the centre penetrates the iron core, and magnetic steel component sets up between two yokes, and the support is settled on magnetic steel component, and the winding has the enameled wire on the coil former, promotes piece design draw-in groove, and the movable contact spring that blocks respectively in magnetic steel component and each control group of control circuit interconnects.
2. The novel three-phase magnetic latching relay according to claim 1, wherein the number of the movable spring pieces of each control group is 3, 2 movable spring pieces are made of red copper sheets, and the middle right part is designed into a U-shaped shape; the rest movable spring is made of beryllium copper material, and the head is provided with a bending design.
3. The novel three-phase magnetic latching relay of claim 1, wherein the magnetic steel assembly comprises 2 armature pieces, a permanent magnet block and a plastic body.
4. A novel three-phase magnetic latching relay according to claim 3, wherein 2 armature plates are made of DT4E material.
5. A novel three-phase magnetic latching relay according to claim 3, wherein the permanent magnet is made of ferrite.
6. The novel three-phase magnetic latching relay according to claim 3, wherein the plastic body is made of wear-resistant PBT material.
7. The novel three-phase magnetic latching relay according to claim 1, wherein the coil assembly is composed of a coil frame, an enameled wire, an iron core and a yoke.
8. The novel three-phase magnetic latching relay according to claim 7, wherein the iron core and the yoke are made of DT4E material.
9. The novel three-phase magnetic latching relay according to claim 8, wherein the enameled wire is made of pure copper wire wrapped with a layer of insulating varnish.
10. The novel three-phase magnetic latching relay according to claim 8, wherein the coil former is made of a wear-resistant PBT material.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202021255578.9U CN212209359U (en) | 2020-06-30 | 2020-06-30 | Novel three-phase magnetic latching relay |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202021255578.9U CN212209359U (en) | 2020-06-30 | 2020-06-30 | Novel three-phase magnetic latching relay |
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| CN212209359U true CN212209359U (en) | 2020-12-22 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP4358109A4 (en) * | 2021-06-18 | 2024-10-09 | Xiamen Hongfa Electric Power Controls Co., Ltd. | POLYPHASE ELECTROMAGNETIC RELAY |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP4358109A4 (en) * | 2021-06-18 | 2024-10-09 | Xiamen Hongfa Electric Power Controls Co., Ltd. | POLYPHASE ELECTROMAGNETIC RELAY |
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