Contact automatic isolation type safety relay
By introducing automatic isolation design and ceramic isolation plates into the relay, the problem of single dynamic and static contact isolation design is solved, effective isolation of electromagnetic interference and mechanical vibration is achieved, the safety and service life of the relay are improved, and the system is ensured. Stability and safety.
Patent Information
- Application Number
- CN202411467704.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-21
- Publication Date
- 2024-12-10
AI Technical Summary
The existing relays have a single design in the isolation between dynamic contacts and static contacts, which cannot effectively prevent the impact of electromagnetic interference and mechanical vibration on the contacts, resulting in malfunctioning, wear and short circuits, affecting the safety and service life of the equipment.
A contact automatic isolation safety relay is designed. By setting isolation components and coils on the isolation plate, using ceramic isolation plates and return springs, combining magnet sheets and distilled water, automatic isolation of dynamic and static contacts is achieved and electromagnetic interference is reduced. and the impact of mechanical impact on contacts.
Effectively prevent malfunctions and wear caused by electromagnetic interference, extend the service life of the relay, ensure that the contacts are completely isolated after being disconnected, avoid short circuits and arcing, improve the stability and safety of the system, and simplify the maintenance process. .
Smart Images
Figure CN119108233A_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the technical field of relays, in particular to a contact automatic isolation type safety relay. Background Art
[0002] Relay is a commonly used control device. Its main function is to realize remote control in the circuit and control the operation of the circuit by connecting and disconnecting the moving contact. In practical applications, in order to ensure the safety and stability of the circuit, it is usually necessary to isolate the moving contact and the static contact. The moving contact is the active part of the relay. It can move freely in the circuit and realize the control function by controlling the switch of the circuit. The static contact is the fixed part. It is connected to the moving contact and changes the state of the circuit through the action of the moving contact.
[0003] In order to ensure the safety and stable operation of the circuit, we must effectively isolate the dynamic contacts from the static contacts. This can effectively prevent the dynamic contacts from accidentally contacting the static contacts, thereby avoiding potential risks such as short circuits and overloads. In addition, isolation measures can also provide additional protection for the static contacts from damage by mechanical vibration and shock, thereby extending their service life and ensuring the long-term reliability of the circuit.
[0004] In general, isolating the moving contacts and the static contacts is an important technology in relay design. It can ensure the safety and stability of the circuit and improve the service life and reliability of the equipment.
[0005] In view of the above problems, it is urgent to carry out innovative design based on the original relay. Summary of the invention
[0006] The technical solution of the present invention aims at the technical problem that the existing technical solution is too single, and provides a contact automatic isolation safety relay which is significantly different from the solution of the existing technology to solve the problems raised in the above background technology.
[0007] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a contact automatic isolation safety relay, comprising a base, a side plate is provided on one side of the top of the base, and a shell is installed between the side plate and the other side of the top of the base, and an isolation plate is connected between the top of the base and the shell, a coil is connected to the top of the base between the shell and the isolation plate, and a support plate is provided on one side of the coil, an armature is installed on the support plate, and a spring sheet is connected to the support plate, a movable part is connected to the armature, a fixed part is installed on the side plate, and an isolation part for isolating the movable part from the fixed part is provided between the isolation plate and the shell.
[0008] Preferably, the isolation plate is provided with two openings for the movable parts and the isolation parts to pass through, and the isolation plate is made of ceramic material.
[0009] Preferably, the movable component includes a movable plate and a movable contact, the armature is connected to the movable plate, and the end of the movable plate passes through an opening on the isolation plate and is connected to the movable contact.
[0010] Preferably, the fixing component comprises a fixing plate and a static contact, the side plate is connected to the fixing plate, and the top of the fixing plate is located below the moving contact and is connected to the static contact.
[0011] Preferably, the isolation component includes a power part and an isolation part, the power part includes a box body, a piston block, a cross plate, a return spring and a connecting plate, a box body is installed on the side of the isolation plate close to the fixed part, and a piston block is provided in the box body, the end of the piston block passes through the top of the box body and is connected to the cross plate, and the end of the cross plate passes through another opening on the isolation plate and is located above the coil, the top of the cross plate is located on both sides of the isolation plate and is connected to a return spring, and a connecting plate is connected between the end of each return spring and the isolation plate.
[0012] Preferably, the box is sealed and filled with non-flammable and non-conductive distilled water, and the horizontal plate located above the coil is configured as a magnet sheet that can be electromagnetically repelled by the coil.
[0013] Preferably, the isolation part includes a Y-shaped delivery pipe, a cylinder, a piston rod and a partition, and a Y-shaped delivery pipe is connected to each side of the bottom of the box body, and each Y-shaped delivery pipe is connected to a cylinder at both ends of the fork, and the cylinders are symmetrically connected to the shell in pairs with respect to both sides of the fixed component, each of the cylinders is provided with a piston rod, and the piston rods on both sides of the shell are each connected to a partition, and the partition is located between the movable component and the fixed component.
[0014] Preferably, the partition is configured as two connectable plate-like structures, and the partition is made of ceramic material.
[0015] Compared with the prior art, the beneficial effects of the present invention are as follows: the contact automatic isolation safety relay isolates the moving and static contacts from the coil by setting an isolation plate, which can prevent the electromagnetic interference generated by the coil from affecting the normal operation of the contacts and reduce the possibility of false operation, thereby improving the safety of the system; and through isolation, the wear of the contacts caused by electromagnetic interference can be reduced, thereby extending the service life of the relay.
[0016] The moving contact and the static contact are isolated after disconnection by setting the isolation component to ensure that the moving contact and the static contact are effectively isolated after disconnection. This can ensure that the circuit will not be accidentally reconnected at the moment of contact separation, thereby avoiding short circuits or other electrical problems and ensuring the safety of equipment and personnel. At the same time, this isolation design helps to reduce the arc phenomenon that may occur between contacts, thereby reducing the wear and damage caused by arcs and extending the service life of contacts. In addition, isolation can ensure that the relay can be reliably disconnected when necessary, preventing false operations caused by contact adhesion, thereby improving the stability of the entire electrical control system. The isolation design also makes maintenance work easier when the contacts are disconnected, without worrying about the risks of accidental contact closure, making system maintenance and inspection safer and more efficient. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] Figure 1 This is a schematic diagram of the front cross-sectional structure of the present invention in a state where the moving contact is away from the static contact; Figure 2 This is a schematic diagram of the front cross-sectional structure of the present invention when the moving contact is close to the stationary contact; Figure 3 This is a schematic diagram of the top view of the structure of the partitions of the present invention in a state where the partitions are close to each other; Figure 4 It is a schematic diagram of the structure of the present invention when the partitions are away from each other from a top view; Figure 5 It is a schematic diagram of the three-dimensional structure of the present invention.
[0018] In the figure: 1. base; 2. side plate; 3. shell; 4. isolation plate; 5. coil; 6. support plate; 7. armature; 8. spring sheet; 9. movable part; 901. movable plate; 902. moving contact; 10. fixed part; 1001. fixed plate; 1002. static contact; 11. isolation part; 1101. box; 1102. piston block; 1103. cross plate; 1104. return spring; 1105. connecting plate; 1106. Y-type delivery pipe; 1107. cylinder; 1108. piston rod; 1109. partition. DETAILED DESCRIPTION
[0019] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.
[0020] See also Figure 1-5The present invention provides a technical solution: a contact automatic isolation safety relay, comprising a base 1, a side plate 2, a housing 3, an isolation plate 4, a coil 5, a support plate 6, an armature 7, a spring sheet 8, a movable component 9, a movable plate 901, a moving contact 902, a fixed component 10, a fixed plate 1001, a static contact 1002, an isolation component 11, a box 1101, a piston block 1102, a horizontal plate 1103, a reset spring 1104, a connecting plate 1105, a Y-shaped delivery pipe 1106, a cylinder 1107, a piston rod 1108, and a partition 110 9. A side plate 2 is provided on one side of the top of the base 1, and a shell 3 is installed between the side plate 2 and the other side of the top of the base 1, and an isolation plate 4 is connected between the top of the base 1 and the shell 3. A coil 5 is connected to the top of the base 1 between the shell 3 and the isolation plate 4, and a support plate 6 is provided on one side of the coil 5, an armature 7 is installed on the support plate 6, and a spring sheet 8 is connected to the support plate 6, a movable part 9 is connected to the armature 7, a fixed part 10 is installed on the side plate 2, and an isolation part 11 for isolating the movable part 9 and the fixed part 10 is provided between the isolation plate 4 and the shell 3.
[0021] The isolation plate 4 is provided with two openings for the movable component 9 and the isolation component 11 to pass through, and the isolation plate 4 is made of ceramic material.
[0022] The movable component 9 includes a movable plate 901 and a movable contact 902 . The movable plate 901 is connected to the armature 7 , and the end of the movable plate 901 passes through the opening of the isolation plate 4 and is connected to the movable contact 902 .
[0023] The fixing component 10 includes a fixing plate 1001 and a static contact 1002 . The fixing plate 1001 is connected to the side plate 2 , and the top of the fixing plate 1001 is located below the moving contact 902 and is connected to the static contact 1002 .
[0024] The isolation component 11 includes a power part and an isolation part. The power part includes a box body 1101, a piston block 1102, a cross plate 1103, a return spring 1104 and a connecting plate 1105. The box body 1101 is installed on the side of the isolation plate 4 close to the fixed component 10, and a piston block 1102 is arranged in the box body 1101. The end of the piston block 1102 passes through the top of the box body 1101 and is connected to the cross plate 1103. The end of the cross plate 1103 passes through another opening on the isolation plate 4 and is located above the coil 5. The top of the cross plate 1103 is located on both sides of the isolation plate 4 and is connected to a return spring 1104, and a connecting plate 1105 is connected between the end of each return spring 1104 and the isolation plate 4.
[0025] The box 1101 is sealed and filled with non-flammable and non-conductive distilled water, and the horizontal plate 1103 is located above the coil 5 and is configured as a magnet sheet that can be electromagnetically repelled by the coil.
[0026] The isolation part includes a Y-shaped delivery tube 1106, a cylinder 1107, a piston rod 1108 and a partition 1109. A Y-shaped delivery tube 1106 is connected to each of the two sides of the bottom of the box body 1101, and each of the two ends of the fork of the Y-shaped delivery tube 1106 is connected to a cylinder 1107. The cylinders 1107 are symmetrically connected to the shell 3 on both sides of the fixed component 10. A piston rod 1108 is provided in each cylinder 1107, and the piston rods 1108 on both sides of the shell 3 are each connected to a partition 1109, and the partition 1109 is located between the movable component 9 and the fixed component 10.
[0027] The partition 1109 is configured as two connectable plate-shaped structures, and the partition 1109 is made of ceramic material.
[0028] Working principle: According to Figure 1 As shown, first install the relay, and after the moving contact 902 and the static contact 1002 are disconnected, the reset spring 1104 is released from compression, pushing the cross plate 1103 and the piston block 1102 to move into the box body 1101, so that the distilled water is transported from the Y-shaped delivery pipe 1106 to the cylinder 1107, and pushing the piston rod 1108 so that the two partitions 1109 are close to each other to isolate the moving contact 902 and the static contact 1002. This is the working principle of the contact automatic isolation safety relay.
[0029] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A contact automatic isolation safety relay, comprising a base (1), characterized in that: A side plate (2) is provided on one side of the top of the base (1), and a shell (3) is installed between the side plate (2) and the other side of the top of the base (1), and an isolation plate (4) is connected between the top of the base (1) and the shell (3). A coil (5) is connected to the top of the base (1) between the shell (3) and the isolation plate (4), and a support plate (6) is provided on one side of the coil (5). An armature (7) is installed on the support plate (6), and a spring sheet (8) is connected to the support plate (6). A movable component (9) is connected to the armature (7). A fixed component (10) is installed on the side plate (2), and an isolation component (11) for isolating the movable component (9) from the fixed component (10) is provided between the isolation plate (4) and the shell (3).
2. The contact automatic isolation safety relay according to claim 1, characterized in that: The isolation plate (4) is provided with two openings for the movable component (9) and the isolation component (11) to pass through, and the isolation plate (4) is made of ceramic material.
3. The contact automatic isolation safety relay according to claim 1, characterized in that: The movable component (9) comprises a movable plate (901) and a movable contact (902); the armature (7) is connected to the movable plate (901), and the end of the movable plate (901) passes through an opening on the isolation plate (4) and is connected to the movable contact (902).
4. The contact automatic isolation safety relay according to claim 1, characterized in that: The fixing component (10) comprises a fixing plate (1001) and a static contact (1002); the fixing plate (1001) is connected to the side plate (2); and the top of the fixing plate (1001) is located below the moving contact (902) and is connected to the static contact (1002).
5. The contact automatic isolation safety relay according to claim 1, characterized in that: The isolation component (11) comprises a power unit and an isolation unit, the power unit comprising a box (1101), a piston block (1102), a transverse plate (1103), a return spring (1104) and a connecting plate (1105); a box (1101) is installed on the isolation plate (4) on the side close to the fixed component (10), and a piston block (1102) is arranged in the box (1101); an end of the piston block (1102) passes through the top of the box (1101) and is connected to the transverse plate (1103); an end of the transverse plate (1103) passes through another opening on the isolation plate (4) and is located above the coil (5); a top of the transverse plate (1103) is located on both sides of the isolation plate (4) and is connected to a return spring (1104); and a connecting plate (1105) is connected between the end of each return spring (1104) and the isolation plate (4).
6. The contact automatic isolation safety relay according to claim 5, characterized in that: The box (1101) is sealed and filled with non-flammable and non-conductive distilled water, and the horizontal plate (1103) is located in the area above the coil (5) and is configured as a magnet sheet that can be electromagnetically repelled by the coil.
7. The contact automatic isolation safety relay according to claim 5, characterized in that: The isolation portion comprises a Y-shaped delivery tube (1106), a cylinder (1107), a piston rod (1108) and a partition (1109); a Y-shaped delivery tube (1106) is connected to each of the two sides of the bottom of the box body (1101); and each of the two bifurcated ends of the Y-shaped delivery tube (1106) is connected to a cylinder (1107); the cylinders (1107) are symmetrically connected to the shell (3) on both sides of the fixed component (10); a piston rod (1108) is provided in each of the cylinders (1107); and each of the piston rods (1108) on both sides of the shell (3) is connected to a partition (1109); and the partition (1109) is located between the movable component (9) and the fixed component (10).
8. The contact automatic isolation safety relay according to claim 7, characterized in that: The partition (1109) is configured as two plate-like structures that can be spliced together, and the partition (1109) is made of ceramic material.