Small-size relay structure

Abstract

The utility model relates to the technical field of relays, in particular to a small-size relay structure. According to the technical scheme, the device comprises a shell, a base is fixedly clamped in the shell, and a mounting base is fixedly arranged on the upper surface of the base; the magnetic circuit assembly is arranged above the shell and used for controlling a circuit, the magnetic circuit assembly comprises a coil holder which is fixedly clamped in the mounting seat, an iron core is fixedly arranged in the coil holder in a penetrating manner, a yoke is fixedly connected to the upper end of the iron core in a sleeving manner, an armature is arranged at the lower end of the yoke, and one end of the armature is located at the lower end of the iron core; the spring piece is fixedly clamped on the yoke, and the spring piece is stably clamped with the armature; and the push piece is fixedly inserted on the armature. According to the utility model, non-contact connection between the armature and the movable spring can be realized, the contact space is increased, generated heat can be quickly dissipated, local overheating is avoided, and the performance and the service life of the relay are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of relays, in particular to a small-volume relay structure. Background Art

[0002] With the development of science and technology, the size of electronic devices is getting smaller and smaller, the functions are getting more and more powerful, and the requirements for electronic components are getting higher and higher. In electronic devices, relays are a commonly used component used to control the on and off of circuits. The movable spring and the armature in the electromagnetic assembly inside the existing ultra-small relay are usually tightly fitted and clamped, which results in a large contact area between the movable spring and the armature. The heat on the surface of the movable spring is difficult to dissipate quickly, which can easily cause local overheating and affect the performance and life of the relay. To this end, the utility model proposes a small-volume relay structure. Utility Model Content

[0003] The purpose of the utility model is to propose a small-volume relay structure in view of the fact that the internal electromagnetic system of the existing relay in the background technology usually only has a one-way control function, which leads to the problem that it can only control the one-way switching of the load. To achieve positive and negative control, multiple output terminals need to be used, which increases the installation space and cost.

[0004] The technical solution of the utility model is as follows: a small-volume relay structure, comprising: a shell, a base is fixedly clamped inside the shell, and a mounting seat is fixedly arranged on the upper surface of the base; a magnetic circuit component is arranged above the shell for controlling the circuit, the magnetic circuit component comprises a wire rack fixedly clamped in the mounting seat, an iron core is fixedly penetrated inside the wire rack, a yoke is fixedly sleeved on the upper end of the iron core, an armature is arranged at the lower end of the yoke, and one end of the armature is located at the lower end of the iron core; a spring sheet fixedly clamped on the yoke, and the spring sheet is stably clamped with the armature; a push sheet fixedly inserted on the armature.

[0005] Optionally, the magnetic circuit assembly further includes a coil wound around an outer wall of the wire frame, with coil terminals connected to both ends of the coil respectively, and the coil terminals are fixedly penetrated through the base and extend to the outside.

[0006] Optionally, a dynamic spring and a static spring are fixedly provided on one side of the base, and the dynamic spring and the static spring are relatively arranged, and contacts are fixedly provided on the opposite surfaces of the dynamic spring and the static spring, and the dynamic spring is stably clamped with one end of the push piece.

[0007] Optionally, a dynamic spring terminal is fixedly provided at the lower end of the dynamic spring, and a static spring terminal is fixedly provided at the lower end of the static spring, and the dynamic spring terminal and the static spring terminal are staggered.

[0008] Optionally, a first card slot is provided on one side of the yoke, a second card slot is fixedly provided on the other side of the yoke, a card foot is fixedly provided on one side of the spring sheet, and a card is provided on the other end of the spring sheet.

[0009] Optionally, a limit block is fixedly provided on the upper end of the iron core.

[0010] Optionally, the spring sheet is arranged in a "Z"-shaped bending structure.

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

[0012] The utility model uses the iron core, yoke, armature, spring sheet, push sheet and other structures in coordination, so that the iron core attracts the armature to move, and the armature drives the push sheet to move through the limiting of the spring sheet during movement, and the push sheet drives the moving spring to move, so that the armature and the moving spring can be connected without contact, the contact space is increased, the generated heat is quickly dissipated, local overheating is avoided, and the performance and life of the relay are improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 A schematic diagram of a small-volume relay structure of the utility model is given;

[0014] Figure 2 Provide the utility model Figure 1 Schematic diagram of the internal structure of the middle shell;

[0015] Figure 3 Provide the utility model Figure 2 Exploded diagram.

[0016] Reference numerals:

[0017] 1. Shell; 2. Base; 3. Mounting seat; 4. Wire rack; 5. Iron core; 6. Yoke; 7. Armature; 8. Spring sheet; 9. Push sheet; 10. Coil; 11. Coil terminal; 12. Moving spring; 13. Static spring; 14. Contact; 15. Moving spring terminal; 16. Static spring terminal; 17. First card slot; 18. Second card slot; 19. Card foot; 20. Card; 21. Limit block. 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 Figure 1 and Figure 2 As shown, a small-volume relay structure proposed by the utility model comprises: a housing 1, a base 2 is fixedly connected inside the housing 1, and a plurality of blocks are arranged on the upper surface of the base 2, which is convenient for stable connection with the housing 1 and convenient for disassembly or installation, a mounting seat 3 is fixedly arranged on the upper surface of the base 2, and the mounting seat 3 is arranged in an "L"-shaped structure, and slide grooves are respectively provided on the opposite surfaces of the mounting seat 3; a magnetic circuit component for controlling the circuit is arranged above the housing 1, and the magnetic circuit component comprises a wire rack 4 fixedly arranged in the mounting seat 3, and the wire rack 4 An iron core 5 is fixedly provided inside and penetrates through it. A yoke 6 is fixedly sleeved on the upper end of the iron core 5, and the yoke 6 is bent at 90 degrees, and the bent part is close to the upper side angle of the wire rack 4. An armature 7 is provided at the lower end of the yoke 6. The armature 7 is bent, and one end of the armature 7 is located at the lower end of the iron core 5 to facilitate mutual attraction and contact; a spring sheet 8 is fixedly clamped on the yoke 6, and the spring sheet 8 is stably clamped with the armature 7, which is used to limit and reset the spring sheet 8; a push sheet 9 is fixedly inserted on the armature 7, and both ends of the push sheet 9 are respectively fixedly provided with clamping blocks.

[0024] like Figure 2 and Figure 3As shown, the magnetic circuit assembly also includes a coil 10 wound around the outer wall of the wire frame 4, and the two ends of the coil 10 are respectively connected to coil terminals 11. The coil terminals 11 are fixedly penetrated by the base 2 and extend to the outside, so as to be connected to the external circuit, generate a magnetic field, and realize circuit control.

[0025] Furthermore, a dynamic spring 12 and a static spring 13 are fixedly provided on one side of the base 2, and the dynamic spring 12 and the static spring 13 are relatively arranged, and contacts 14 are fixedly provided on the opposite surfaces of the dynamic spring 12 and the static spring 13, respectively, so as to facilitate mutual fitting to realize the disconnection or closing of the circuit, and the dynamic spring 12 is stably connected with the card block at one end of the push piece 9 to reduce the connection contact surface, thereby realizing rapid heat dissipation.

[0026] like Figures 1 to 3 As shown, a dynamic spring terminal 15 is fixedly provided at the lower end of the dynamic spring 12, and a static spring terminal 16 is fixedly provided at the lower end of the static spring 13, and the dynamic spring terminal 15 and the static spring terminal 16 are staggered to facilitate connection with the circuit to realize the opening or closing of the circuit.

[0027] like Figure 3 As shown, a first slot 17 is provided on one side of the yoke 6, a second slot 18 is fixedly provided on the other side of the yoke 6, a clamping foot 19 is fixedly provided on one side of the spring sheet 8, and the clamping foot 19 is a "T"-shaped structure, and a card 20 is provided at the other end of the spring sheet 8, which can enable the spring sheet 8 to be stably clamped on the yoke 6.

[0028] Secondly, a limiting block 21 is fixedly provided on the upper end of the iron core 5 to limit the yoke 6 so that its installation is more stable.

[0029] Furthermore, the spring sheet 8 is arranged in a “Z”-shaped bending structure, which is used to limit or reset the armature 7.

[0030] The working principle of this embodiment is as follows: after the relay is powered on, the coil terminal 11 is connected to the circuit, a certain voltage is applied to the coil terminal 11, current is generated in the coil 10, and the coil 10 generates an electromagnetic field on the outer wall of the bobbin 4. Under the action of the magnetic field, the iron core 5 is magnetized to attract the armature 7, and the armature 7 overcomes the pulling force of the spring sheet 8 and moves toward one end of the iron core 5, the armature 7 drives the push piece 9 to move, the push piece 9 drives the moving spring 12 to move, and the moving spring 12 drives the contact 14 to fit with the contact 14 on the static spring 13, so that the circuit is closed.

[0031] When the circuit is disconnected, the current in the coil 10 disappears, thereby causing the electromagnetic field to disappear, and the armature 7 is reset under the elastic force of the spring piece 8. The armature 7 drives the push piece 9 to move, and the push piece 9 drives the contact 14 on the moving spring 12 away from the contact 14 on the static spring 13, thereby disconnecting the circuit.

[0032] During the movement of the push piece 9, the armature 7 and the movable spring 12 are always kept at a long distance to achieve a contactless connection, thereby increasing the contact space, facilitating the rapid dissipation of the generated heat, avoiding local overheating, and improving the performance and life of the relay.

[0033] 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 small-volume relay structure, characterized in that: include: A housing (1), wherein a base (2) is fixedly provided inside the housing (1), and a mounting seat (3) is fixedly provided on the upper surface of the base (2); A magnetic circuit assembly is arranged above the housing (1) and is used for controlling the circuit. The magnetic circuit assembly comprises a wire frame (4) fixedly mounted in a mounting seat (3). An iron core (5) is fixedly arranged inside the wire frame (4) and penetrates through the wire frame. A yoke (6) is fixedly sleeved on the upper end of the iron core (5). An armature (7) is arranged at the lower end of the yoke (6), and one end of the armature (7) is located at the lower end of the iron core (5). A spring sheet (8) fixedly mounted on the yoke (6), wherein the spring sheet (8) is stably engaged with the armature (7); A push piece (9) is fixedly inserted on the armature (7).

2. A small-volume relay structure according to claim 1, characterized in that: The magnetic circuit assembly also includes a coil (10) wound around the outer wall of the bobbin (4), with coil terminals (11) connected to both ends of the coil (10) respectively, and the coil terminals (11) are fixedly connected to the base (2) and extend to the outside.

3. A small-volume relay structure according to claim 1, characterized in that: A dynamic spring (12) and a static spring (13) are fixedly connected on one side of the base (2), and the dynamic spring (12) and the static spring (13) are arranged opposite to each other. Contact points (14) are fixedly arranged on the opposite surfaces of the dynamic spring (12) and the static spring (13), and the dynamic spring (12) is stably connected to one end of the push piece (9).

4. A small-volume relay structure according to claim 3, characterized in that: A dynamic spring terminal (15) is fixedly provided at the lower end of the dynamic spring (12), and a static spring terminal (16) is fixedly provided at the lower end of the static spring (13), and the dynamic spring terminal (15) and the static spring terminal (16) are staggered.

5. The small-volume relay structure according to claim 1, characterized in that: A first clamping groove (17) is provided on one side of the yoke (6), a second clamping groove (18) is fixedly provided on the other side of the yoke (6), a clamping foot (19) is fixedly provided on one side of the spring sheet (8), and a clamping card (20) is provided at the other end of the spring sheet (8).

6. A small-volume relay structure according to claim 1, characterized in that: A limiting block (21) is fixedly arranged on the upper end of the iron core (5).

7. A small-volume relay structure according to claim 1, characterized in that: The spring sheet (8) is arranged in a "Z"-shaped bending structure.

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