Relay structure capable of preventing contact spacing from becoming small

Abstract

The utility model discloses a relay structure capable of preventing contact spacing from decreasing, which comprises a relay body, a driving mechanism and a load mechanism, a base is fixedly mounted in the relay body, the driving mechanism is fixedly mounted above the base, the load mechanism is fixedly mounted on one side of the driving mechanism, and the load mechanism is fixedly mounted on the other side of the driving mechanism. The driving mechanism comprises a plastic framework, an enameled wire, terminal pins, an iron core, a yoke and an armature, the plastic framework is fixedly mounted on one side of the base, the enameled wire is fixedly wound above the plastic framework, and multiple groups of terminal pins are fixedly mounted on one side of the base; according to the utility model, the base is provided with the safety baffle plate which is arranged between the movable reed and the static reed, and the baffle plate abuts against the static reed; a bend is arranged at the contact position of the static reed and the baffle, the angle can be adjusted at any time to achieve the best matching state with the baffle, the static reed is effectively prevented from inclining, the contact distance is guaranteed, and safe use is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of relay equipment, in particular to a relay structure capable of preventing a contact distance from becoming smaller. Background Art

[0002] A relay is an electrical control device. When the change in input quantity reaches the specified requirement, it causes a predetermined step change in the controlled quantity in the electrical output circuit. It has an interactive relationship between the control system, also known as the input circuit, and the controlled system, also known as the output circuit. It is 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. Therefore, it plays the role of automatic adjustment, safety protection, and circuit conversion in the circuit.

[0003] In the existing file 202021243861.X, a general relay realizes the switching of the circuit by the connection and disconnection between the contacts; if the contact spacing is too small, an arc will appear between the contacts, and the circuit will be in a state of being neither disconnected nor not disconnected, which will not only cause the circuit to be unable to disconnect stably, but also the instantaneous high temperature generated by the arc will damage the relay; at the very least, it will affect the normal connection and disconnection of the circuit, and at worst, it will cause safety accidents such as fire. Whether there is enough spacing between the contacts is one of the important indicators affecting the performance of the relay. Therefore, the utility model proposes a relay structure that can prevent the contact spacing from becoming smaller to solve the problems existing in the prior art. Utility Model Content

[0004] In view of the above problems, the purpose of the utility model is to propose a relay structure that can prevent the contact spacing from becoming smaller. The relay structure that can prevent the contact spacing from becoming smaller is provided with a safety baffle on the base, which is located between the moving reed and the static reed, and the baffle supports the static reed; a bend is provided at the place where the static reed contacts the baffle, and the angle can be adjusted at any time to achieve the best matching state with the baffle, effectively preventing the static reed from tilting, thereby ensuring the contact spacing and achieving safe use. By preventing the contact spacing from becoming smaller, the wear between the contacts can be reduced, thereby extending the service life of the relay, and maintaining a constant contact spacing can improve the stability of the relay operation.

[0005] To achieve the purpose of the utility model, the utility model is implemented through the following technical solutions: a relay structure that can prevent the contact spacing from becoming smaller, including a relay body, a drive mechanism and a load mechanism, a base is fixedly installed inside the relay body, a drive mechanism is fixedly installed above the base, a load mechanism is fixedly installed on one side of the drive mechanism, the drive mechanism includes a plastic frame, enameled wire, lead pins, an iron core, a yoke and an armature, a plastic frame is fixedly installed on one side of the base, enameled wire is fixedly wound above the plastic frame, multiple groups of lead pins are fixedly installed on one side of the base, an iron core is fixedly installed above the base, a yoke is fixed on one side of the iron core, an armature is fixedly connected to the top of the yoke, and one side of the armature is fixed by a hook.

[0006] A further improvement is that the load mechanism includes a moving reed, a moving reed terminal, a moving contact, a static reed and a static contact, the moving reed is fixedly installed on the top of the base, the moving reed terminal is fixedly arranged on one side of the moving reed, the moving contact is fixedly installed on the top of the moving reed, the static reed is fixedly installed on one side of the moving reed, and the static contact is fixedly installed on the top of the static reed.

[0007] A further improvement is that a push rod is fixedly installed above the base, and the driving mechanism and the load mechanism are connected via the push rod.

[0008] A further improvement is that the enameled wire is wound and installed on a plastic frame to form a hollow cylinder, and the lead pins are fixed on both sides of the frame.

[0009] A further improvement is that the iron core passes through the hollow cylinder in the middle of the enameled wire, and the enameled wire is wound and installed on the surface of the iron core.

[0010] A further improvement is that the yoke and the iron core are riveted together and fixed, and the armature is fixed on the top of the yoke and supported by the yoke and fixed by a hook.

[0011] A further improvement is that the moving spring piece and the static spring piece are both vertically mounted on the base, and there is no shielding or limitation between the moving spring piece and the static spring piece.

[0012] A further improvement is that a shell is fixedly mounted on the outside of the relay body, and the provision of the shell facilitates the protection of the internal equipment.

[0013] The beneficial effects of the utility model are as follows: a safety baffle is provided on the base of the utility model, which is located between the dynamic spring and the static spring, and the baffle supports the static spring; a bend is provided at the place where the static spring contacts the baffle, and the angle can be adjusted at any time to achieve the best matching state with the baffle, effectively preventing the static spring from tilting, thereby ensuring the contact spacing and achieving safe use. By preventing the contact spacing from becoming smaller, the wear between the contacts can be reduced, thereby extending the service life of the relay. Maintaining a constant contact spacing can improve the stability of relay operation and avoid circuit failures caused by changes in the contact spacing. Preventing the contact spacing from becoming smaller can reduce the frequency of maintenance and replacement, thereby reducing maintenance costs, reducing the risk of short circuits, and improving the safety of the entire circuit system. Ensuring that the contact spacing remains unchanged can provide more consistent electrical performance, which is particularly important for circuits that require precise control. During the production process, if the contact spacing remains stable, the time for adjustment and maintenance can be reduced, and production efficiency can be improved. A stable contact spacing helps to reduce the extra heat generated by poor contact, thereby reducing energy consumption. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0015] Figure 1 It is a diagram of the use of the housing of the utility model;

[0016] Figure 2 It is a schematic diagram of the relay body of the utility model;

[0017] Figure 3 It is a schematic diagram of the internal structure of the utility model.

[0018] Among them: 1. Relay body; 2. Driving mechanism; 3. Load mechanism; 4. Base; 5. Plastic frame; 6. Enameled wire; 7. Lead pins; 8. Iron core; 9. Yoke; 10. Armature; 11. Moving spring; 12. Moving spring terminal; 13. Moving contact; 14. Static spring; 15. Static contact; 16. Push rod; 17. Shell. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the practical embodiment to clearly and completely describe the technical solution in the practical embodiment. Obviously, the described embodiment is only a part of the embodiment of the practical, not all of the embodiments. Based on the embodiment in the practical, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this practical.

[0020] In the description of this utility model, it should be noted that, unless otherwise clearly specified and limited, the terms installation, connection and connection should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0021] according to Figure 1 , Figure 2 , Figure 3 As shown, this embodiment provides a relay structure that can prevent the contact spacing from becoming smaller, including a relay body 1, a driving mechanism 2 and a load mechanism 3. A base 4 is fixedly installed inside the relay body 1, and a driving mechanism 2 is fixedly installed above the base 4. A load mechanism 3 is fixedly installed on one side of the driving mechanism 2. The driving mechanism 2 converts an input signal such as current or voltage into mechanical motion to realize the switching action of the relay. Specifically, when the input signal reaches a preset threshold, the driving mechanism drives the contacts of the relay to close or open, thereby controlling the on and off of the circuit. The load mechanism 3 is responsible for carrying and transmitting the current in the circuit. When the driving mechanism drives the contacts to close, the load mechanism 3 transfers the current from one circuit path to another circuit path, thereby realizing the switching and control of the circuit. The driving mechanism 2 includes a plastic frame 5, an enameled wire 6, a lead pin 7, an iron core 8, a yoke 9 and an armature 10. One side of the base 4 is fixedly installed A plastic frame 5 is installed, which is the support body of the internal structure of the relay. The plastic frame 5 is used to fix and protect other components such as the coil, iron core 8, etc. An enameled wire 6 is fixedly wound on the top of the plastic frame 5. A plurality of groups of lead pins 7 are fixedly installed on one side of the base 4. Current enters the coil through these lead pins 7. The iron core 8 is located in the center of the coil and is made of magnetic conductive material. It can enhance the magnetic field generated by the coil. An iron core 8 is fixedly installed on the top of the base 4. A yoke 9 is fixed on one side of the iron core 8. An armature 10 is fixedly connected to the top of the yoke 9. One side of the armature 10 is fixed by a hook. The armature 10 returns to its original position due to the action of a spring or other restoring force, and the contact system is reset accordingly, and the circuit is disconnected. This process is reversible. The relay can repeatedly open and close the circuit according to the presence or absence or size of current in the coil to achieve control of the circuit. This mechanism enables the relay to be used as a switch in various electronic devices to control the flow of current.

[0022] The load mechanism 3 includes a moving spring 11, a moving spring terminal 12, a moving contact 13, a static spring 14 and a static contact 15. The moving spring 11 is fixedly installed on the top of the base 4, the moving spring terminal 12 is fixedly arranged on one side of the moving spring 11, the moving contact 13 is fixedly installed on the top of the moving spring 11, the static spring 14 is fixedly installed on one side of the moving spring 11, and the static contact 15 is fixedly installed on the top of the static spring 14. When there is no input signal, the moving spring 11 remains in place, the moving contact 13 is separated from the static contact 15, and the circuit is in a disconnected state. When there is an input signal, the electromagnetic force generated by the pushing mechanism will bend the moving spring 11, driving the moving contact 13 to move toward the static contact 15. Once the moving contact 13 contacts the static contact 15, the circuit will be closed and the current will start to flow. When the input signal disappears, the moving spring 11 returns to its original position due to its own elasticity, the moving contact 13 is separated from the static contact 15, and the circuit is disconnected again.

[0023] A push rod 16 is fixedly installed above the base 4 , and the driving mechanism 2 and the loading mechanism 3 are connected via the push rod 16 . The driving mechanism 2 and the loading mechanism 3 are installed and fixed by the setting of the push rod 16 .

[0024] The enameled wire 6 is wound and installed on the plastic frame 5 to form a hollow cylinder. The enameled wire 6 is wound into a coil. When current is passed through the coil, a magnetic field is generated. This magnetic field is the key to driving the relay. The lead pin 7 is an interface for connecting an external power supply to the relay coil. The lead pin 7 is fixed on both sides of the frame. The enameled wire 6 is wound on the plastic frame 5 in a circular direction according to a certain number of turns to form a hollow cylinder. Two lead pins 7 are fixed on the frame on the left and right to lead out the beginning and end of the enameled wire to form a loop. This structure is called a coil.

[0025] The iron core 8 passes through the hollow cylinder in the middle of the enameled wire 6. The enameled wire 6 is wound and installed on the surface of the iron core 8. The enameled wire 6 is the key to driving the relay to work.

[0026] The yoke 9 and the core 8 are riveted together and fixed, and the armature 10 is fixed on the top of the yoke 9 and supported by the yoke 9 and fixed by a hook. The yoke 9 is the part connecting the core 8 and the armature 10, which helps to guide the magnetic field and make the magnetic field more concentrated. The armature 10 is a movable iron sheet, which moves under the action of the magnetic field. One end of the armature 10 is usually connected to the contact system of the relay.

[0027] The moving spring piece 11 and the static spring piece 14 are both vertically mounted on the base 4, with no shielding or limit between the moving spring piece 11 and the static spring piece 14. The moving contact 13 and the static contact 15 are respectively stamped on the moving spring piece 11 and the static spring piece. The moving spring piece 11 is stamped and combined with the moving spring terminal 12 and assembled on the plastic base to bear the load.

[0028] A housing 17 is fixedly mounted on the outside of the relay body 1 , and the housing 17 is provided to facilitate protection of the internal equipment.

[0029] When the relay structure that can prevent the contact spacing from becoming smaller is used, the driving mechanism 2 converts the input signal such as current or voltage into mechanical motion to realize the switching action of the relay. Specifically, when the input signal reaches a preset threshold, the driving mechanism drives the contacts of the relay to close or open, thereby controlling the on and off of the circuit. The load mechanism 3 is responsible for carrying and transmitting the current in the circuit. When the driving mechanism drives the contacts to close, the load mechanism 3 transfers the current from one circuit path to another circuit path, thereby realizing the switching and control of the circuit. The plastic frame 5 is a support body for the internal structure of the relay. It fixes and protects other components, such as coils and iron cores. 8, etc., the enameled wire 6 is wound into a coil. When current is passed through the coil, a magnetic field is generated. This magnetic field is the key to driving the relay. The lead pins 7 are the interface for connecting the external power supply to the relay coil. The current enters the coil through these lead pins 7. The iron core 8 is located in the center of the coil and is made of magnetic conductive material. It can enhance the magnetic field generated by the coil. The yoke 9 is the part connecting the iron core 8 and the armature 10. It helps guide the magnetic field and makes the magnetic field more concentrated. The armature 10 is a movable iron piece that moves under the action of the magnetic field. One end of the armature 10 is usually connected to the contact system of the relay. When current is passed through the coil, the current generates a magnetic field in the coil. The iron core The presence of the yoke 9 makes the magnetic field more concentrated. This concentrated magnetic field acts on the armature to move it. The movement of the armature 10 drives the contact system of the relay to close or open the contacts, thereby controlling the on and off of the circuit. When the current in the coil stops or decreases to a certain level, the magnetic field disappears or weakens. The armature 10 returns to its original position due to the spring or other restoring force, and the contact system is reset, and the circuit is disconnected. This process is reversible. The relay can repeatedly open and close the circuit according to the presence or size of the current in the coil to achieve control of the circuit. This mechanism enables the relay to be used as a switch in various electronic devices to control the flow of current. When there is no input signal, the moving spring 11 remains in place, the moving contact 13 is separated from the static contact 15, and the circuit is in a disconnected state. When there is an input signal, the electromagnetic force generated by the pushing mechanism will bend the moving spring 11, driving the moving contact 13 to move toward the static contact 15. Once the moving contact 13 contacts the static contact 15, the circuit will be closed and the current will begin to flow. When the input signal disappears, the moving spring 11 returns to its original position due to its own elasticity, the moving contact 13 is separated from the static contact 15, and the circuit is disconnected again. The driving mechanism 2 and the load mechanism 3 are installed and fixed by the setting of the pushing rod 16, and the setting of the housing 17 is convenient for protecting the internal equipment.

[0030] The above shows and describes the basic principles, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principles of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A relay structure capable of preventing the contact distance from becoming smaller, comprising a relay body (1), a drive mechanism (2) and a load mechanism (3), characterized in that: A base (4) is fixedly mounted inside the relay body (1), a driving mechanism (2) is fixedly mounted above the base (4), and the driving mechanism (2) comprises a plastic frame (5), enameled wires (6), lead pins (7), an iron core (8), a yoke (9) and an armature (10). A plastic frame (5) is fixedly mounted on one side of the base (4), an enameled wire (6) is fixedly wound above the plastic frame (5), a plurality of groups of lead pins (7) are fixedly mounted on one side of the base (4), an iron core (8) is fixedly mounted above the base (4), a yoke (9) is fixedly mounted on one side of the iron core (8), and an armature (10) is fixedly connected to the top of the yoke (9).

2. A relay structure capable of preventing the contact distance from becoming smaller according to claim 1, characterized in that: A load mechanism (3) is fixedly mounted on one side of the driving mechanism (2), and the load mechanism (3) comprises a movable spring (11), a movable spring terminal (12), a movable contact (13), a stationary spring (14) and a stationary contact (15); a movable spring (11) is fixedly mounted above the base (4); a movable spring terminal (12) is fixedly arranged on one side of the movable spring (11); a movable contact (13) is fixedly mounted on the top of the movable spring (11); a stationary spring (14) is fixedly mounted on one side of the movable spring (11); and a stationary contact (15) is fixedly mounted on the top of the stationary spring (14).

3. A relay structure capable of preventing the contact distance from becoming smaller according to claim 1, characterized in that: A push rod (16) is fixedly mounted above the base (4), and the driving mechanism (2) and the load mechanism (3) are connected via the push rod (16).

4. A relay structure capable of preventing the contact distance from becoming smaller according to claim 1, characterized in that: The enameled wire (6) is wound and installed on the plastic frame (5) to form a hollow cylinder, and the lead pins (7) are fixed on both sides of the frame.

5. A relay structure capable of preventing the contact distance from becoming smaller according to claim 1, characterized in that: The iron core (8) passes through the hollow cylinder in the middle of the enameled wire (6), and the enameled wire (6) is wound and installed on the surface of the iron core (8).

6. A relay structure capable of preventing the contact distance from becoming smaller according to claim 1, characterized in that: The yoke (9) and the iron core (8) are riveted and fixed to each other, and the armature (10) is fixed on the top of the yoke (9) and supported by the yoke (9) and fixed by a hook.

7. A relay structure capable of preventing the contact distance from becoming smaller according to claim 2, characterized in that: The movable spring piece (11) and the stationary spring piece (14) are both vertically mounted on the base (4), and there is no shielding or limiting between the movable spring piece (11) and the stationary spring piece (14).

8. A relay structure capable of preventing the contact distance from decreasing according to claim 1, characterized in that: A housing (17) is fixedly mounted on the outer side of the relay body (1).

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