Large-spacing anti-falling relay structure

Abstract

The utility model relates to the technical field of relays, in particular to an anti-drop relay structure with large spacing. According to the technical scheme, the device comprises a bottom plate and a shell clamped above the bottom plate; the coil holder is fixedly arranged on the upper surface of the bottom plate, a coil is wound on the outer wall of the coil holder, and an iron core penetrates through the interior of the coil holder; the mounting groove is formed in one end of the coil holder, an M terminal and a stop piece are fixedly clamped in the mounting groove, a first end pin is fixedly arranged at the lower end of the M terminal, and the first end pin penetrates through the bottom plate and extends to the outside; and the yoke is fixedly clamped at the other end of the coil holder and is fixedly sleeved with one end of the iron core. According to the utility model, the ultra-large gap between the contacts can be generated, and the relay is effectively suitable for being applied to plateau high-altitude air rarefied areas, so that the risk of arc generation is reduced, the abrasion and burning of the contacts are reduced, and meanwhile, the ultra-large gap also can reduce the resistance between the contacts, thereby improving the performance of the relay.

Description

Technical Field

[0001] The utility model relates to the technical field of relays, in particular to a large-spacing anti-drop relay structure. Background Art

[0002] A relay is an electrical control device. It is an electrical appliance that causes a predetermined step change in the controlled quantity in the electrical output circuit when the change in the input quantity (excitation quantity) reaches the specified requirements. It has an interactive relationship between the control system (also called the input circuit) and the controlled system (also called the output circuit). Usually used in automated control circuits, it is actually an "automatic switch" that uses a small current to control the operation of a large current, and plays the role of automatic adjustment, safety protection, and circuit conversion in the circuit. Existing relays are used in some high-altitude plateaus. Due to the low air pressure and thin air, the insulation performance of the air is reduced, and the current is easily conducted through the air, which causes the contact spacing of the relay to become smaller or even short-circuited. In addition, due to the thin air, the heat dissipation performance will also be reduced accordingly, which may cause the temperature of the relay to rise, thereby affecting its normal operation. To this end, the utility model proposes a large-spacing anti-drop relay structure. Utility Model Content

[0003] The purpose of the utility model is to address the problem in the background technology that relays are used in some plateaus and high altitudes. Due to the low air pressure and thin air, the insulation performance of the air is reduced, and the current is easily conducted through the air, which causes the contact spacing of the relay to become smaller or even short-circuit. In addition, due to the thin air, the heat dissipation performance will also be reduced accordingly, which may cause the temperature of the relay to rise, thereby affecting its normal operation. A relay structure with a large spacing and anti-drop is proposed.

[0004] The technical solution of the utility model: a large-spacing anti-drop relay structure, comprising: a base plate and a shell clamped on the top of the base plate; a wire frame fixedly arranged on the upper surface of the base plate, a coil wound on the outer wall of the wire frame, and an iron core penetrated inside the wire frame; a mounting groove opened at one end of the wire frame, an M terminal and a stop plate fixedly clamped inside the mounting groove, a first end foot fixedly arranged at the lower end of the M terminal, and the first end foot penetrates the base plate and extends to the outside; a yoke fixedly clamped at the other end of the wire frame, the yoke is fixedly sleeved with one end of the iron core, a second end foot is fixedly arranged on the bottom surface of one end of the yoke, and the second end foot penetrates the base plate and extends to the outside; a moving spring arranged at one end of the yoke, an armature fixedly clamped on the moving spring, and the armature is located on one side of one end of the iron core.

[0005] Optionally, two coil terminals are provided through the wire rack, and the coil terminals are respectively connected to two ends of the coil.

[0006] Optionally, a static contact is fixedly provided on one side of the M terminal.

[0007] Optionally, a moving contact is fixedly provided at one end of the armature.

[0008] Optionally, the yoke is bent at 90 degrees, and the bent portion is close to a side corner of one end of the wire rack.

[0009] Optionally, the armature is arranged in an "L"-shaped structure, and one end extends between the M terminal and the stop plate.

[0010] Optionally, the coil terminal is arranged in an "L"-shaped structure, and the bending part is in close contact with the upper surface of the wire rack.

[0011] Compared with the prior art, the utility model has the following beneficial technical effects:

[0012] The utility model uses an installation groove, an M terminal, a stopper, a movable spring, an armature, a static contact, a movable contact, etc. in combination, so that the stopper limits the movable spring, and the movable contact and the static contact on the movable spring are far apart, which can produce an extra-large gap between the contacts. The utility model is effectively suitable for application in high-altitude areas with thin air on plateaus, thereby reducing the risk of arc generation and reducing the wear and burning of the contacts. At the same time, the extra-large gap can also reduce the resistance between the contacts, thereby improving the performance of the relay. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 A schematic diagram of a large-spacing anti-drop relay structure of the utility model is given;

[0014] Figure 2 for Figure 1 Schematic diagram of the structure inside the middle shell;

[0015] Figure 3 for Figure 2 Exploded diagram.

[0016] Reference numerals:

[0017] 1. Base plate; 2. Shell; 3. Wire rack; 4. Coil; 5. Iron core; 6. Mounting slot; 7. M terminal; 8. Stop plate; 9. First end pin; 10. Yoke iron; 11. Second end pin; 12. Moving spring; 13. Armature; 14. Coil terminal; 15. Static contact; 16. Moving contact. DETAILED DESCRIPTION

[0018] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0019] In order to facilitate the understanding of the present invention, the present invention will be described more fully below with reference to the relevant drawings. Several embodiments of the present invention are given in the drawings. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present invention more thorough and comprehensive.

[0020] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only.

[0021] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art in the technical field of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0022] Example

[0023] like Figures 1 to 3As shown, the utility model proposes a large-pitch anti-drop relay structure, comprising: a base plate 1 and a shell 2 clamped on the top of the base plate 1, and the upper surface side edges of the base plate 1 are respectively fixedly provided with a plurality of buckles, which are convenient for stable clamping with the shell 2; a wire rack 3 fixedly provided on the upper surface of the base plate 1, the outer wall of the wire rack 3 is wound with a coil 4, and the inside of the wire rack 3 is penetrated by an iron core 5, which can generate a stable magnetic field; a mounting groove 6 is opened at one end of the wire rack 3, and the inner wall of the mounting groove 6 has a plurality of clamping grooves, and the inside of the mounting groove 6 is fixedly clamped with an M terminal 7 and a stopper 8 through the clamping groove, so as to improve the installation stability of the M terminal 7 and the stopper 8, and the lower end of the M terminal 7 is fixedly provided with a first end foot 9, and the first end foot 9 penetrates the base plate 1 and extends It extends to the outside, and a sealing rubber ring is provided at the penetration point; a yoke 10 is fixedly clamped at the other end of the wire frame 3, and a clamping groove is opened on the yoke 10, and the clamping groove on the yoke 10 is fixedly sleeved with one end of the iron core 5 to improve the stability of the installation of the iron core 5, and a second end foot 11 is fixedly provided on the bottom surface of one end of the yoke 10, and the second end foot 11 passes through the bottom plate 1 and extends to the outside, and a sealing rubber ring is provided at the penetration point; a dynamic spring 12 is provided at one end of the yoke 10, and the dynamic spring 12 adopts a longitudinal grain design, which effectively improves the opening and closing elastic pressure of the dynamic spring 12 and resists the hard fatigue crack phenomenon of large spacing and large stroke, and an armature 13 is fixedly clamped on the dynamic spring 12, and the armature 13 is located on one side of one end of the iron core 5, so as to facilitate the attraction with one end of the iron core 5.

[0024] Please refer to Figure 2 and Figure 3 As shown, two coil terminals 14 are provided through the bobbin 3 , and the coil terminals 14 are respectively connected to the two ends of the coil 4 , so as to facilitate the connection of the circuit, so that the coil 4 generates current and forms a magnetic field.

[0025] Furthermore, a static contact 15 is fixedly provided on one side of the M terminal 7 , and the static contact 15 faces the stopper 8 .

[0026] Secondly, a moving contact 16 is fixedly provided at one end of the armature 13, and the moving contact 16 is arranged opposite to the static contact 15 to facilitate stable contact.

[0027] Furthermore, the yoke 10 is bent at 90 degrees, and the bent portion is close to the side corner of one end of the wire rack 3, so that it can be stably attached to the side of the wire rack 3 and occupy a smaller installation space.

[0028] In addition, the armature 13 is arranged in an “L”-shaped structure, and one end thereof extends between the M terminal 7 and the stop plate 8 , so as to facilitate stable contact between the moving contact 16 and the stationary contact 15 .

[0029] Finally, the coil terminal 14 is arranged in an “L”-shaped structure, and the bending part is in close contact with the upper surface of the wire rack 3 , so that the coil terminal 14 can be stably clamped on the wire rack 3 .

[0030] The working principle of this embodiment is: the circuit is connected to the coil terminal 14, and a certain voltage is applied to the two ends of the coil 4, so that a certain current will flow through the coil 4, thereby generating an electromagnetic effect. Under the action of electromagnetic force, the armature 13 overcomes the pulling force of the movable spring 12 and is attracted to one end of the iron core 5, so that the armature 13 drives the movable contact 16 on the movable spring 12 to be attracted to the static contact 15.

[0031] When the coil 4 is powered off, the electromagnetic attraction disappears, and the armature 13 returns to its original position under the reaction force of the movable spring 12, so that the movable contact 16 on the movable spring 12 and the original static contact 15 are released. After release, they are limited by the stopper 8 to maintain a stable extra-large spacing, which is effectively suitable for application in high-altitude and thin-air areas on the plateau, thereby reducing the risk of arc generation, reducing contact wear and burning. At the same time, the extra-large gap can also reduce the resistance between the contacts, thereby improving the performance of the relay.

[0032] The above-mentioned specific embodiments are only several optional embodiments of the present invention. Based on the technical solution of the present invention and the relevant inspiration of the above-mentioned embodiments, those skilled in the art can make various alternative improvements and combinations to the above-mentioned specific embodiments.

Claims

1. A large-spacing anti-drop relay structure, characterized in that: include: A base plate (1) and a housing (2) clamped on the base plate (1); A wire rack (3) is fixedly arranged on the upper surface of the bottom plate (1), a coil (4) is wound around the outer wall of the wire rack (3), and an iron core (5) is penetrated through the interior of the wire rack (3); A mounting groove (6) is provided at one end of the wire rack (3), an M terminal (7) and a stopper (8) are fixedly provided inside the mounting groove (6), a first end leg (9) is fixedly provided at the lower end of the M terminal (7), and the first end leg (9) passes through the bottom plate (1) and extends to the outside; A yoke (10) is fixedly clamped and arranged at the other end of the wire frame (3), the yoke (10) is fixedly sleeved with one end of the iron core (5), a second end foot (11) is fixedly arranged on the bottom surface of one end of the yoke (10), and the second end foot (11) penetrates the bottom plate (1) and extends to the outside; A movable spring (12) is arranged at one end of the yoke (10), an armature (13) is fixedly clamped on the movable spring (12), and the armature (13) is located on one side of one end of the iron core (5).

2. The large-spacing anti-drop relay structure according to claim 1 is characterized in that: Two coil terminals (14) are provided through the wire frame (3), and the coil terminals (14) are respectively connected to two ends of the coil (4).

3. The large-spacing anti-drop relay structure according to claim 1 is characterized in that: A static contact (15) is fixedly arranged on one side of the M terminal (7).

4. The large-spacing anti-drop relay structure according to claim 1 is characterized in that: A moving contact (16) is fixedly arranged at one end of the armature (13).

5. The large-spacing anti-drop relay structure according to claim 1 is characterized in that: The yoke (10) is bent at 90 degrees, and the bent portion is in close contact with a side angle of one end of the wire frame (3).

6. The large-spacing drop-resistant relay structure according to claim 1, characterized in that: The armature (13) is arranged in an "L"-shaped structure, and one end thereof extends between the M terminal (7) and the stop plate (8).

7. The large-spacing anti-drop relay structure according to claim 2, characterized in that: The coil terminal (14) is arranged in an "L"-shaped structure, and the bending portion is in close contact with the upper surface of the wire frame (3).

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