Heavy-current relay
By designing a high-current relay and employing a magnetic latching drive mechanism and an arc-extinguishing magnet, the wiring difficulties caused by the cross-arrangement of strong and weak current terminals were solved, achieving insulation distance and rapid arc extinguishing capability, thus meeting the requirements for miniaturization and rapid response.
Patent Information
- Application Number
- CN202520055912.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-10
- Publication Date
- 2025-12-23
- Estimated Expiration
- 2035-01-10
AI Technical Summary
Due to structural design and manufacturing requirements, the cross-arrangement of strong and weak current output terminals in existing relays makes wiring difficult and makes it hard to meet insulation distance requirements.
Design a high-current relay that uses a magnetic latching drive mechanism and an arc-extinguishing magnet to achieve complete separation between high-voltage and low-voltage terminals. It also ensures rapid arc extinguishing through a direct-acting electromagnetic system and dual arc extinguishing, simplifying PCB routing.
It achieves the required insulation distance between strong and weak current terminals, simplifies the wiring process, and has the ability to quickly extinguish arcs, meeting the needs of miniaturization and rapid response.
Smart Images
Figure CN223712671U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to relay technology field, concretely relates to a large current relay. BACKGROUND
[0002] With the continuous development of equipment, the relay is required to have higher load DC switching capability and larger current carrying capacity, and is increasingly required to save space, be safe and efficient and the like. Due to the requirements of product structure design and manufacturability, the strong and weak electric output terminals of the product are arranged in cross, so that when the customer lays out the PCB, the insulation distance needs to be considered, and the strong and weak electric wiring is difficult. Therefore, the large current relay is provided to solve the above problems. SUMMARY
[0003] To solve the problems in the above background art, the utility model solves the technical problems by adopting the technical scheme of a large current relay, which comprises: a relay base, a magnetic latching driving mechanism is arranged on one side of the upper end of the relay base, a clamping seat is connected to the output end of the magnetic latching driving mechanism, a movable terminal clamping groove is arranged on one side of the upper end of the relay base, a static terminal clamping groove is arranged on the other side of the upper end of the relay base, a movable terminal holder is clamped in the movable terminal clamping groove, a static terminal body is clamped in the static terminal clamping groove, a first arc extinguishing magnet is clamped on one side of the movable terminal body of the relay base, and a second arc extinguishing magnet is clamped on one side of the static terminal body of the relay base.
[0004] As a preferred technical scheme of the utility model, a coil terminal is arranged on one side of the upper end of the relay base, the coil terminal is connected with the magnetic latching driving mechanism, a movable contact point is arranged on one end of the movable terminal body, a static contact point is arranged on one end of the static terminal body, and the movable contact point faces the static contact point.
[0005] As a preferred technical scheme of the utility model, a cover plate is arranged on the top end of the relay base, a spring column is arranged in the middle of the cover plate, and the bottom of the spring column contacts the top end of the movable terminal body.
[0006] As a preferred technical scheme of the utility model, an outer shell is clamped on the upper end of the relay base, and the movable terminal body is riveted to one side of the relay base at the connection between the movable terminal body and the movable terminal holder.
[0007] As a preferred technical scheme of the utility model, the magnetic latching driving mechanism comprises a yoke, a first coil, a second coil, a moving iron core, a magnet main body, a first static iron core and a second static iron core, the first coil and the second coil are arranged inside the yoke, the moving iron core is located inside the first coil and the second coil, the magnet main body is arranged outside the connecting position of the first coil and the second coil, and the first static iron core and the second static iron core are fixedly connected to the bottom and the top of the yoke respectively.
[0008] As a preferred technical scheme of the utility model, the moving iron core is sleeved with a copper sleeve outside the circumference, a push rod is connected to the top end of the moving iron core, the top end of the push rod is connected with a clamping seat, and the yoke is mounted on the relay base.
[0009] The utility model has the advantages that the utility model relay has completely separated strong current terminals and weak current terminals, meets the insulation distance, has the advantages of simple PCB wiring, adopts the direct acting type electromagnetic system at the coil position, can quickly extinguish arc under the double guarantee of large contact point gap and arc extinguishing magnet, has simple structure and low height, can meet the miniaturization of the on-off small-sized magnetic latching relay of direct current load, and under the condition of large contact point gap of the utility model relay, the closing time is short and the problem of quick response of power supply equipment and the like is met. BRIEF DESCRIPTION OF DRAWINGS
[0010] Figure 1 It is the whole structure schematic diagram of the preferred embodiment of the utility model;
[0011] Figure 2 It is the structure schematic diagram of the shell removal of the preferred embodiment of the utility model;
[0012] Figure 3 It is the cover plate removal structure schematic diagram of the preferred embodiment of the utility model;
[0013] Figure 4 It is the movable terminal main body and static terminal main body structure schematic diagram of the preferred embodiment of the utility model;
[0014] Figure 5 It is the magnetic latching driving mechanism structure schematic diagram of the preferred embodiment of the utility model.
[0015] BRIEF DESCRIPTION OF DRAWINGS: 1, relay base; 2, magnetic latching driving mechanism; 21, yoke; 22, first coil; 23, second coil; 24, moving iron core; 25, magnet main body; 26, first static iron core; 27, second static iron core; 3, clamping seat; 4, movable terminal clamping groove; 5, static terminal clamping groove; 6, movable terminal frame; 7, movable terminal main body; 8, static terminal main body; 9, moving contact point; 10, static contact point; 11, first arc extinguishing magnet; 12, second arc extinguishing magnet; 13, coil terminal; 14, cover plate; 15, spring column; 16, shell. DETAILED DESCRIPTION
[0016] The technical solutions of the utility model will be described clearly and completely in connection with the drawings. In the description of the utility model, it needs to be explained that the directions or position relations of the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like are based on the directions or position relations shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description, and therefore cannot be understood as limiting the utility model. In addition, the terms "first", "second", "third" are only for the purpose of description, and cannot be understood as indicating or implying the importance of the opposite.
[0017] In the description of the utility model, it needs to be explained that, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connecting" should be understood broadly, for example, it can be fixed connection, or detachable connection, or integrally connected; it can be mechanical connection, or electrical connection; it can be directly connected, or indirectly connected through intermediate medium, or the communication inside two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.
[0018] The utility model will be further described in connection with the drawings.
[0019] Please refer to Figures 1-5 The utility model discloses a large current relay, which comprises a relay base 1, a magnetic retention driving mechanism 2 is arranged on one side of the upper end of the relay base 1, a clamping seat 3 is connected to the output end of the magnetic retention driving mechanism 2, a movable terminal clamping groove 4 is arranged on one side of the upper end of the relay base 1, a static terminal clamping groove 5 is arranged on the other side of the upper end of the relay base 1, a movable terminal holder 6 is clamped in the movable terminal clamping groove 4, a movable terminal main body 7 is fixedly riveted on one side of the lower end of the movable terminal holder 6, a static terminal main body 8 is clamped in the static terminal clamping groove 5, a first arc extinguishing magnet 11 is clamped on one side of the movable terminal main body 7 of the relay base 1, and a second arc extinguishing magnet 12 is clamped on one side of the static terminal main body 8 of the relay base 1.
[0020] Figure 2 and Figure 5As shown in the figure, the upper end of the relay base 1 is provided with a coil terminal 13, the coil terminal 13 is connected with the magnetic holding driving mechanism 2, one end of the movable terminal body 7 is provided with a movable contact point 9, one end of the static terminal body 8 is provided with a static contact point 10, the movable contact point 9 is opposite to the static contact point 10, the top of the relay base 1 is provided with a cover plate 14, the middle of the cover plate 14 is provided with a spring column 15, the movable terminal body 7 can be quickly pushed to make contact with the static terminal body 8 through the spring column 15, the bottom of the spring column 15 contacts the top of the movable terminal body 7, the upper end of the relay base 1 is clamped with a shell 16, the connection between the movable terminal body 7 and the movable terminal holder 6 is riveted to one side of the relay base 1, and the movable terminal body 7 and the static terminal body 8 can be arc extinguished through the first arc extinguishing magnet 11 and the second arc extinguishing magnet 12.
[0021] In combination Figure 3 And Figure 5 As shown in the figure, the magnetic holding driving mechanism 2 comprises a yoke 21, a first coil 22, a second coil 23, a movable iron core 24, a magnet body 25, a first static iron core 26 and a second static iron core 27, the first coil 22 and the second coil 23 are arranged in the yoke 21, the movable iron core 24 is located on the inner side of the first coil 22 and the second coil 23, the magnet body 25 is arranged on the outer side of the connection position of the first coil 22 and the second coil 23, the first static iron core 26 and the second static iron core 27 are fixedly connected to the bottom and the top of the yoke 21 respectively, a copper sleeve is slidably sleeved on the circumferential outer side of the movable iron core 24, a push rod is connected to the top of the movable iron core 24, the top of the push rod is connected with the clamping seat 3, the yoke 21 is installed on the relay base 1, the second static iron core 27 or the first static iron core 26 can generate magnetic force by electrifying the first coil 22 or the second coil 23, so that the movable iron core 24 can be controlled to move upward or downward, when the movable iron core 24 moves upward, the push rod can drive the clamping seat 3 to move upward, so that the clamping seat 3 can push the movable terminal body 7 upward, so that the movable contact point 9 on the movable terminal body 7 is away from the static contact point 10, at this time, the spring column 15 is compressed, when the movable iron core 24 moves downward, the clamping seat 3 moves downward, so that the movable contact point 9 on the movable terminal body 7 can quickly contact the static contact point 10 on the static terminal body 8 under the pressure of the spring column 15.
[0022] The above is only the preferred embodiment of the present application, and it should be pointed out that, for those skilled in the art, some improvements and decorations can be made without departing from the principle of the present application, and these improvements and decorations should also be regarded as the protection scope of the present application.
[0023] Other parts not described in the present application are all prior art, so they will not be described here.
[0024] Finally, it should be noted that: the above embodiments are used to illustrate the technical solutions of the present application, but not limited to them; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: it can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement to part or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application.
Claims
1. A high current relay comprising: The relay base (1) is characterized in that a magnetic latching driving mechanism (2) is arranged on one side of the upper end of the relay base (1), a clamping seat (3) is connected to the output end of the magnetic latching driving mechanism (2), a movable terminal clamping groove (4) is arranged on one side of the upper end of the relay base (1), a static terminal clamping groove (5) is arranged on the other side of the upper end of the relay base (1), a movable terminal holder (6) is clamped in the movable terminal clamping groove (4), a movable terminal body (7) is fixedly riveted on one side of the lower end of the movable terminal holder (6), a static terminal body (8) is clamped in the static terminal clamping groove (5), a first arc extinguishing magnet (11) is clamped on one side of the movable terminal body (7) of the relay base (1), and a second arc extinguishing magnet (12) is clamped on one side of the static terminal body (8) of the relay base (1).
2. A high current relay as claimed in claim 1, wherein, A coil terminal (13) is arranged on one side of the upper end of the relay base (1), the coil terminal (13) is connected with the magnetic latching driving mechanism (2), a movable contact point (9) is arranged at one end of the movable terminal body (7), and a static contact point (10) is arranged at one end of the static terminal body (8), the movable contact point (9) is opposite to the static contact point (10).
3. A high current relay as claimed in claim 1, wherein, A cover plate (14) is arranged at the top end of the relay base (1), a spring column (15) is arranged in the middle of the cover plate (14), and the bottom of the spring column (15) contacts the top end of the movable terminal body (7).
4. A high current relay as claimed in claim 1, wherein, An outer shell (16) is clamped on the upper end of the relay base (1), and the movable terminal body (7) and the movable terminal holder (6) are riveted on one side of the relay base (1).
5. A high current relay as claimed in claim 1, wherein, The magnetic latching driving mechanism (2) comprises a yoke (21), a first coil (22), a second coil (23), a movable iron core (24), a magnet body (25), a first static iron core (26), and a second static iron core (27), the first coil (22) and the second coil (23) are arranged in the yoke (21), the movable iron core (24) is located inside the first coil (22) and the second coil (23), the magnet body (25) is arranged outside the connection position of the first coil (22) and the second coil (23), and the first static iron core (26) and the second static iron core (27) are fixedly connected to the bottom and the top of the yoke (21) respectively.
6. A high current relay according to claim 5, wherein the armature is formed from a magnetic material. A copper sleeve is sleeved on the circumferential outer side of the movable iron core (24), a push rod is connected to the top end of the movable iron core (24), the top end of the push rod is connected with the clamping seat (3), and the yoke (21) is mounted on the relay base (1).