Ultra-low-height relay structure
Through the hollow unidirectional opening structure of the base and the component stacking design, the problem of low isolation between the relay coil and the contacts is solved, and a relay structure with high insulation performance and miniaturization is achieved to meet the high isolation requirements of small installation spaces.
Patent Information
- Application Number
- CN202421738156.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-22
- Publication Date
- 2025-07-25
- Estimated Expiration
- 2034-07-22
AI Technical Summary
In the existing relay structure, the isolation between the coil and the contacts is low and the media withstand voltage is not high, which makes it impossible to meet the usage requirements when the installation space is small and the input and output isolation is high. The pushing point of the pushing block is set in the middle of the moving reed, resulting in a larger size in the height direction of the product.
It adopts a hollow unidirectional opening structure of the base, and special design of magnetic circuit components and contact components, including stacking settings of iron frames, wire frames, armatures, push plates, etc., and a 90-degree bending design of static springs and moving springs. The push plate pushes the contact plates to stably contact with the static spring contacts, increasing the electrical distance and isolation, and reducing temperature rise.
It improves insulation performance, increases electrical distance and creepage distance, improves the media voltage resistance, prevents ignition, reduces product height, reduces installation space, and meets the high isolation requirements of small installation space.
Smart Images
Figure CN223155924U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of relays, in particular to a structure of an ultra-low height relay. Background Art
[0002] A relay is an electronic control device. It has a control system and a controlled system and is usually applied to an automatic control circuit. It is actually an "automatic switch" that uses a smaller current to control a larger current and plays roles such as automatic regulation, safety protection, and circuit conversion in the circuit. In the existing relay structure, the coil generally adopts a vertical front-mounted or inverted mounting method, the size of the product in the height direction is relatively large, the isolation degree between the coil and the contact is also relatively low, and the dielectric withstand voltage is not high. Generally, the maximum value of the conversion contact type product can reach 3000VAC, and the normally open contact type product can only reach 4000VAC. This results in the inability to meet the use requirements in occasions where the installation space is small and the input and output isolation degrees are high. At the same time, the pushing point of the pushing block is generally set in the middle of the moving reed, and the pushing point, the riveting point of the moving reed, and the contact are in a straight line in the height direction, which also causes the size of the product in the height direction to be relatively large and unable to meet the use requirements of a small installation height space. For this reason, the utility model proposes a structure of an ultra-low height relay. Summary of the Utility Model
[0003] The purpose of the utility model is to solve the problems existing in the relay structure in the background art, that is, the coil generally adopts a vertical front-mounted or inverted mounting method, the size of the product in the height direction is relatively large, the isolation degree between the coil and the contact is also relatively low, and the dielectric withstand voltage is not high, resulting in the inability to meet the use requirements in occasions where the installation space is small and the input and output isolation degrees are high, and the pushing point of the pushing block is generally set in the middle of the moving reed, and the pushing point, the riveting point of the moving reed, and the contact are in a straight line in the height direction, which also causes the size of the product in the height direction to be relatively large and unable to meet the use requirements of a small installation height space, and to propose a structure of an ultra-low height relay.
[0004] The technical solution of the utility model: A structure of an ultra-low height relay includes: a base, and the interior of the base is provided with a hollow one-way opening structure, and clamping seats are respectively arranged on both sides of the inner bottom surface of the base; a magnetic circuit assembly arranged on the base for controlling the opening and closing of the relay; a contact assembly located in the upper cavity of the base for controlling the on-off of the circuit, and the contact assembly is used to cooperate with the magnetic circuit assembly to realize the control of the relay circuit; a housing sleeved on the outer wall of the base.
[0005] Optionally, the magnetic circuit component includes an iron frame fixedly arranged on the inner wall of the base cavity. A iron core is fixedly arranged on the iron frame. A bobbin is sleeved on the outer wall of the iron core, and the bobbin is fixedly installed on the upper surface of the iron frame. A coil is wound around the outer wall of the bobbin. One side of the bottom of the iron frame is fixedly provided with an elastic piece. An armature is clamped between the iron frame and the elastic piece, and the upper end of the armature is located on one side of one end of the iron core. A group of coil terminals are arranged through the bobbin. The lower end of the coil terminal is fixedly connected with a coil end foot, and the coil end foot penetrates through the base and extends to the outside.
[0006] Optionally, the magnetic circuit component further includes a push piece rotatably arranged on the inner wall of the base. The push piece is located directly below the armature, and the upper surface is in close contact with one end of the armature.
[0007] Optionally, the contact component includes a static reed and a moving reed. The static reed and the moving reed are respectively inserted into the clamping seats on both sides of the inner bottom surface of the base. A contact point is fixedly arranged on the upper surface of the static reed.
[0008] Optionally, a contact piece is fixedly arranged on the upper surface of the moving reed, and the contact piece is located directly below the push piece. One end of the contact piece is directly above the contact point.
[0009] Optionally, the static reed and the moving reed are bent at 90 degrees, and the bent part is close to the bottom of the base.
[0010] Optionally, two contact points are arranged at the bottom of one end of the push piece.
[0011] Compared with the prior art, the utility model has the following beneficial technical effects:
[0012] Through the hollow one-way opening structure provided on the base of the utility model, the armature pushes the contact piece on the moving reed to contact the contact point on the static reed through the push piece. Stacking these components can better accommodate the magnetic circuit component, effectively improve the insulation performance, increase the electrical distance, creepage distance, and penetration insulation distance, enhance the isolation degree of the input and output ends, achieve the purpose of increasing the dielectric withstand voltage, effectively reduce the temperature rise, thereby preventing fire, and reducing the height of the product and the installation space;
[0013] Furthermore, by bending the static reed piece and the moving reed piece, with the bent part close to the bottom of the base and the push piece located directly above the contact piece on the moving reed, the push piece can stably push the contact piece to contact the contact point on the static reed, thus avoiding the adhesion of the relay contact points. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 The structural schematic diagram of a super-low height relay structure of the utility model is given;
[0015] Figure 2 ForFigure 1 Internal structure schematic diagram
[0016] Figure 3 is Figure 1 Another internal structure schematic diagram from a different viewing direction;
[0017] Figure 4 is Figure 2 Partial disassembled structure schematic diagram.
[0018] Reference numerals:
[0019] 1. Base; 2. Outer shell; 3. Iron frame; 4. Iron core; 5. Bobbin; 6. Coil; 7. Elastic piece; 8. Armature; 9. Coil terminal; 10. Coil end pin; 11. Pushing piece; 12. Static reed; 13. Moving reed; 14. Contact; 15. Contact piece. Specific embodiments
[0020] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.
[0021] To facilitate the understanding of the present invention, the present invention will be described more comprehensively below with reference to the relevant accompanying 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.
[0022] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly on the other element or there can also be an intermediate element. When an element is considered to be "connected" to another element, it can be directly connected to the other element or there may be an intermediate element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are only for the purpose of illustration.
[0023] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the technical field to which the present invention belongs. 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 of the related listed items.
[0024] Embodiment
[0025] like Figure 1 and Figure 2 As shown, an ultra-low height relay structure proposed by the utility model includes: a base 1, and the interior of the base 1 is a hollow one-way opening structure, which is convenient for installing the internal components of the relay, and the base 1 has card seats on both sides of the inner bottom surface, and the card seats are symmetrically arranged; a magnetic circuit component arranged on the base 1 for controlling the opening and closing of the relay; a contact component located in the cavity on the base 1 for circuit on-off control, the contact component is used to cooperate with the magnetic circuit component to realize the relay circuit control, and realize the purpose of conducting and cutting off the circuit; a shell 2 is sleeved on the outer wall of the base 1.
[0026] like Figure 2 and Figure 3 As shown, the magnetic circuit assembly includes an iron frame 3 fixedly arranged on the inner wall of the cavity of the base 1, and the iron frame 3 is an "L"-shaped structure, an iron core 4 is fixedly arranged on the iron frame 3, and a wire frame 5 is sleeved on the outer wall of the iron core 4. The wire frame 5 is a "冂"-shaped structure, and the wire frame 5 is fixedly installed on the upper surface of the iron frame 3. A coil 6 is wound around the outer wall of the wire frame 5, an elastic sheet 7 is fixedly arranged on one side of the bottom of the iron frame 3, and one end of the elastic sheet 7 obliquely protrudes from one side of the iron frame 3, an armature 8 is clamped between the iron frame 3 and the elastic sheet 7, the armature 8 is bent more than 90 degrees, and the upper end of the armature 8 is located on one side of one end of the iron core 4, which is convenient for contacting the iron core 4, and a group of coil terminals 9 are penetrated on the wire frame 5, and the lower end of the coil terminal 9 is fixedly connected to the coil end foot 10, and the coil end foot 10 penetrates the base 1 and extends to the outside, which is convenient for connection with the control circuit.
[0027] Furthermore, the magnetic circuit assembly also includes a push piece 11 rotatably arranged on the inner wall of the base 1 through a shaft, and the push piece 11 is located directly below the armature 8, and the upper surface is in close contact with one end of the armature 8.
[0028] Secondly, the contact assembly includes a static spring 12 and a dynamic spring 13, which are respectively inserted into the inside of the sockets on both sides of the bottom surface of the base 1, with an effective cantilever beam length for heat dissipation. A contact 14 is fixedly provided on the upper surface of the static spring 12.
[0029] Further Figure 4 In the embodiment, a contact piece 15 is fixedly provided on the upper surface of the movable spring 13, and the contact piece 15 is located just below the push piece 11, and one end of the contact piece 15 is located just above the contact point 14, so as to facilitate stable contact with each other.
[0030] In addition, the static spring 12 and the dynamic spring 13 are bent at 90 degrees, and the bent portion is close to the bottom of the base 1, so as to avoid adhesion between the contact sheet 15 and the contact point 14 and improve the contact stability.
[0031] Finally, two contact points are provided at the bottom of one end of the push piece 11 to facilitate stable contact with the contact point 14 .
[0032] The working principle of this embodiment is as follows: When the control circuit applies voltage to the coil terminal 9, a current is generated inside the coil 6 to form a magnetic field, generating an electromagnetic effect. The armature 8 will overcome the elastic force limitation of the elastic piece 7 and be attracted to one end of the iron core 4, causing the lower end of the armature 8 to push the push piece 11 to rotate on the base 1, and the rotating end pushes one end of the contact piece 15 on the moving reed 13 to move downward, so that the contact piece 15 contacts the contact point 14 on the static reed 12.
[0033] When the coil 6 is powered off, the electromagnetic suction force also disappears, and the armature 8 is pushed back to its original position by the reaction force of the elastic piece 7, thus achieving the purpose of conduction and cutting-off in the circuit. Stacking these components can better accommodate the magnetic circuit components, effectively improve the insulation performance, increase the electrical distance, creepage distance, and through-insulation distance, enhance the isolation degree of the input and output ends, increase the dielectric withstand voltage, effectively reduce the temperature rise, thereby preventing fire, and reducing the height of the product and the installation space.
[0034] The above specific embodiments are only several alternative embodiments of the present utility model. Based on the technical solution of the present utility model and the relevant revelations of the above embodiments, those skilled in the art can make various alternative improvements and combinations to the above specific embodiments.
Claims
1. An ultra-low height relay structure, characterized in that, Including: A base (1), and the interior of the base (1) is provided with a hollow one-way opening structure. On both sides of the inner bottom surface of the base (1), there are card seats respectively. A magnetic circuit component arranged on the base (1) for controlling the opening and closing of a relay. A contact component located in the upper cavity of the base (1) for controlling the on-off of a circuit. The contact component is used to cooperate with the magnetic circuit component to realize the control of the relay circuit. A housing (2) sleeved on the outer wall of the base (1).
2. The structure of an ultra-low height relay according to claim 1, wherein: The magnetic circuit component includes an iron frame (3) fixedly arranged on the inner wall of the cavity of the base (1). A iron core (4) is fixedly arranged on the iron frame (3). A wire frame (5) is sleeved on the outer wall of the iron core (4), and the wire frame (5) is fixedly installed on the upper surface of the iron frame (3). A coil (6) is wound around the outer wall of the wire frame (5). On one side of the bottom of the iron frame (3), an elastic piece (7) is fixedly arranged. An armature (8) is clamped between the iron frame (3) and the elastic piece (7), and the upper end of the armature (8) is located on one side of one end of the iron core (4). A group of coil terminals (9) are arranged through the wire frame (5). The lower end of the coil terminal (9) is fixedly connected with a coil pin (10), and the coil pin (10) penetrates through the base (1) and extends to the outside.
3. The structure of an ultra-low height relay according to claim 2, characterized in that: The magnetic circuit component further includes a push piece (11) rotatably arranged on the inner wall of the base (1). The push piece (11) is located directly below the armature (8), and its upper surface is in close contact with one end of the armature (8).
4. An ultra-low height relay structure according to claim 1, characterized in that: The contact component includes a static reed (12) and a moving reed (13). The static reed (12) and the moving reed (13) are respectively inserted into the card seats on both sides of the inner bottom surface of the base (1). A contact point (14) is fixedly arranged on the upper surface of the static reed (12).
5. An ultra-low height relay structure according to claim 4, characterized in that: A contact piece (15) is fixedly arranged on the upper surface of the moving reed (13), and the contact piece (15) is located directly below the push piece (11). One end of the contact piece (15) is directly above the contact point (14).
6. An ultra-low height relay structure according to claim 4, characterized in that: The static reed (12) and the moving reed (13) are bent at 90 degrees, and the bent part is close to the bottom of the base (1).
7. An ultra-low height relay structure according to claim 3, characterized in that: Two contact points are arranged at the bottom of one end of the push piece (11).