High-vibration-resistant TO5 relay electromagnetic structure and relay

Abstract

The invention discloses a high-vibration-resistant TO5 relay electromagnetic structure and a relay, the structure is configured to comprise a gasket, a yoke, an iron core and a coil, the gasket is made of stainless steel, two ends of the gasket are bent to form an assembly side used for being assembled with the yoke, and a through hole used for assembling the iron core is formed in the middle of the gasket; the yoke is assembled on the periphery of the iron core and connected with the assembling side in a spot welding mode, the top end of the iron core penetrates through the through hole and then is assembled at the top end of the yoke, and the iron core is connected with the gasket in a spot welding mode at the attaching position; the coil is assembled in a space formed by the iron core, the yoke and the gasket. According to the electromagnetic structure, after the gasket structure is improved, the electromagnetic structure can be well assembled with the iron core and the yoke and then connected in a spot welding mode, so that other parts of a relay magnetic circuit system except a rotating structure (the armature and the push rod) form a rigid structure, and the anti-vibration performance is improved.

Description

Technical Field

[0001] The invention relates to the technical field of relays, and in particular to an electromagnetic structure of a TO5 relay resistant to high vibration and a relay. Background Art

[0002] TO5 relays have the characteristics of small size and light weight. They have long been an indispensable key component for electrical equipment, remote control equipment and ground measurement and control equipment. In recent years, these measurement and control equipment have increasingly higher requirements for the relay's ability to resist harsh environments. In certain specific occasions, in equipment with high-frequency vibration conditions, higher vibration resistance requirements are placed on the environmental adaptability of relays.

[0003] At present, the existing TO5 relay product structure can only meet the total root mean square acceleration of 240m / s in random vibration. 2 Under the conditions of the magnitude, the product cannot meet the use requirements for higher magnitude random vibration indicators. Summary of the invention

[0004] The purpose of the present invention is to provide a high-vibration resistant TO5 relay electromagnetic structure, which has a high vibration resistance performance and can meet higher-level random vibration indicators.

[0005] The structure is configured to include a gasket, a yoke, an iron core and a coil. The gasket is made of stainless steel, with both ends bent to form an assembly side for assembly with the yoke, and a through hole in the middle for assembly of the iron core. The yoke is assembled on the outer periphery of the iron core and connected to the assembly side by spot welding. The top of the iron core passes through the through hole and is assembled on the top of the yoke. The iron core and the gasket are connected at the joint by spot welding. The coil is assembled in the space formed by the iron core, the yoke and the gasket.

[0006] In some embodiments, the spot welding positions of the core and the gasket are located on two sides of the core and the gasket that are symmetrically fitted, which can effectively ensure the flatness of the gasket and the two sides of the core.

[0007] The present invention also provides a high-vibration resistant TO5 relay, which is configured to include an electromagnetic structure and a contact structure. The electromagnetic structure is the electromagnetic structure provided by the present invention. The electromagnetic structure also includes an armature, which is assembled at the bottom end of the iron core through a rotating shaft. The rotating shaft is assembled with the armature slot of the armature so that the armature can rotate along the rotating shaft. A push rod is assembled on the armature.

[0008] The beneficial effects achieved by the present invention include:

[0009] 1. The electromagnetic structure has improved anti-vibration performance by improving the gasket structure.

[0010] 2. The gasket of this electromagnetic structure is made of stainless steel, and its Vickers hardness can reach 400, and the anti-vibration performance is further improved, and the total root mean square acceleration index of random vibration can reach 300m / s 2 Magnitude and above, can meet more advanced random vibration indicators. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] The accompanying drawings are part of this application and are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention, but do not constitute an improper limitation of the present invention. Obviously, the drawings described below are only some embodiments. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work. In the drawings:

[0012] Figure 1 It is a schematic diagram of the structure of the electromagnetic structure of the TO5 relay described in the present invention;

[0013] Figure 2 for Figure 1 Exploded diagram of

[0014] Figure 3 A schematic diagram of the structure of the first gasket described in the present invention;

[0015] Figure 4 A schematic diagram of the structure of the second gasket described in the present invention;

[0016] Figure 5 for Figure 3 The schematic diagram of the structure after the gasket and the yoke are welded;

[0017] Figure 6 for Figure 3 The schematic diagram of the structure after the gasket and the core are welded;

[0018] Figure 7 It is a schematic diagram of the structure after the core and the yoke are riveted together;

[0019] Figure 8 An exploded view of the contact structure in the relay of the present invention;

[0020] Fig. 9 This is a diagram showing the relationship between the reed and contact positions in the relay of the present invention. DETAILED DESCRIPTION

[0021] Example embodiments will now be described more fully with reference to the accompanying drawings. However, example embodiments can be implemented in many forms and should not be construed as limited to the examples set forth herein; rather, these embodiments are provided so that the invention will be more comprehensive and complete and fully convey the concept of the example embodiments to those skilled in the art.

[0022] Combination Figure 1-9 The T0-5 relay includes an electromagnetic structure 1 and a contact structure 2. The electromagnetic structure 1 is used to excite the access and generate electromagnetic force. It is configured to include a push rod 11, an armature 12, a washer 13, a yoke 14, an iron core 15 and a coil 16. The washer 13 can be used as follows Figure 3 The structure shown in the figure, however, has an assembly gap after being assembled with the iron core and the yoke iron, so under high-level vibration conditions, the iron core assembled in the electromagnetic structure is prone to resonance, causing the relay to fail.

[0023] Figure 4 Another structure of the gasket 13 is shown. The gasket 13 is made of stainless steel, and its two ends are bent at 90° or other angles to form an assembly side 131 for assembly with the yoke 14. There is a through hole 132 in the middle for assembly of the core 15; the yoke 14 is assembled on the outer periphery of the core 15 and connected to the assembly side 131 by spot welding. The top of the core 15 passes through the through hole 132 and is riveted to the yoke 14. The core 15 and the gasket 13 are connected at the joint by spot welding; the coil 16 is assembled in the space formed by the core 15, the yoke 14 and the gasket 13.

[0024] Figure 4 The structure of the washer 3 shown in FIG. 1 forms an assembly side 131 to achieve welding of the washer 13 and the yoke 14. Figure 5 As shown, the core 15 is welded to the washer 13, as shown Figure 6 As shown, the electromagnetic structure, except for the rotating structure (armature, push rod), forms a rigid structure with other components, thereby improving the anti-vibration performance.

[0025] The core 15 and the yoke 14 of the electromagnetic structure 1 are connected into a rigid structure by spot welding through the washer 13 as an intermediate connecting piece; the welding position of the core 15 and the washer 13 is located on the left and right sides of the washer 13 and the core 13 are symmetrically fitted, which is a relatively central symmetrical structure.

[0026] like Figure 2 As shown, the armature 12 is assembled to the bottom end of the iron core 15 through the rotating shaft 17. The rotating shaft 17 is assembled with the armature slot of the armature 12 so that the armature 12 can rotate along the rotating shaft 17; the push rod 11 is assembled on the armature 12. The iron core 15 is welded to the washer 13 and then assembled with the yoke 12 and the coil 16, and then the final electromagnetic structure is formed by riveting and spot welding. Figure 1-7 shown.

[0027] The gasket material in the electromagnetic structure described in the present disclosure is stainless steel with a Vickers hardness of up to 400. The gasket, core and yoke iron form a rigid structure, thereby achieving the purpose of improving the vibration resistance of the product. The total root mean square acceleration index of random vibration can reach 300m / s 2 Level and above.

[0028] like Figure 8 , 9 As shown, the contact structure includes a base 21, a lead-out terminal 22, a contact A23, a contact B24, a reed 25, a restoring reed 26 and a restoring stopper 27. One end of the lead-out terminal 22 passes through the base 21 and is assembled on the base 21, and the other end is located below the base 21 for electrical connection with an external device; the contact A23 and the contact B24 are respectively assembled on the lead-out terminal 22 to realize electrical connection with the lead-out terminal 22, and the contact A23 and the contact B24 are arranged at an upper and lower position. Distributed structure; one end of the reed 25 is assembled on the base 21 through the connecting rod 28, and the other end is located between the contact A23 and the contact B24, and contacts with the contact A23 or the contact B24 in the initial state; the restoration reed 26 and the restoration stop 27 are distributed and assembled on the base 21; the contact end of the reed 25 is a forked structure, and the reed 25 and the connecting rod 28 are spot welded to form a reed part, forming a cantilever beam structure, which can move the contact contact when the push rod part 11 acts.

[0029] The coil is excited and connected, and the coil is energized. Under the action of the iron core and the yoke, a magnetic field force is generated to act on the armature. Since the rotating shaft cooperates with the armature slot on the armature, the armature can flip under the action of the magnetic field force, thereby driving the push rod assembled on the armature to push the reed so that the reed is lifted away from the contact in the initial state and contacts with another contact. If it contacts with contact A or contact B in the initial state, the reed contacts with contact B or contact A after the electromagnetic structure 1 is excited and connected; since the reed is a forked structure, two contact points are formed. As long as one contact contacts with contact A or contact B under the action of the magnetic field force, the relay can be connected.

[0030] The restoring spring 26 and the restoring stop 27 in the contact part are in the initial state. Under the action of the reaction force of the restoring spring and the limit of the restoring stop, the armature part is stable in this state. After the coil is energized and the voltage exceeds the relay action voltage, the armature part is subjected to the electromagnetic force to overcome the restoring spring and the elastic reaction force of the spring itself and rotates along the rotating shaft, and switches to the attracted state. After the coil is de-energized, the electromagnetic force on the armature part disappears. Under the action of the restoring spring and the elastic reaction force of the spring itself, the armature rotates in the opposite direction along the rotating shaft to the limit position of the restoring stop, and then remains in the initial state.

[0031] In order to improve the insulation of the relay, a glass insulator 29 is also mounted on the base 21 of the relay, and the insulator is located at the periphery of the lead-out terminal 22 .

[0032] The contact position of the reed in this relay is forked to add a contact point. When the relay is working, if one of the contact points with the reed fails, the other contact point can be connected normally to ensure the reliability of the relay connection. If one of the two forks is in good contact, the relay can work normally.

[0033] The present disclosure has been described by the above-mentioned relevant embodiments, but the above-mentioned embodiments are only examples for implementing the present disclosure. It must be pointed out that the disclosed embodiments do not limit the scope of the present disclosure. On the contrary, changes and modifications made without departing from the spirit and scope of the present disclosure are all within the scope of patent protection of the present disclosure.

Claims

1. A high vibration resistant TO5 relay electromagnetic structure, characterized in that: The structural configuration includes a washer, a yoke, an iron core and a coil. The washer is made of stainless steel, with both ends bent to form an assembly side for assembly with the yoke, and a through hole in the middle for assembly of the iron core. The yoke is assembled on the outer periphery of the iron core and connected to the assembly side by spot welding. The top of the iron core passes through the through hole and is assembled on the top of the yoke. The iron core and the washer are connected at the joint by spot welding. The coil is assembled in the space formed by the iron core, the yoke and the washer.

2. The high vibration resistant TO5 relay electromagnetic structure according to claim 1, characterized in that: The spot welding positions of the iron core and the gasket are located on two sides of the symmetrical fitting of the iron core and the gasket.

3. A high vibration resistant TO5 relay, characterized in that: The relay is configured to include an electromagnetic structure and a contact structure, wherein the electromagnetic structure is the electromagnetic structure described in any one of claims 1-2, and the electromagnetic structure also includes an armature, wherein the armature is assembled at the bottom end of the iron core through a rotating shaft, and the rotating shaft is assembled with the armature slot of the armature so that the armature can rotate along the rotating shaft, and a push rod is assembled on the armature.

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