CN214152799U - Time delay structure of electromagnetic relay - Google Patents
Time delay structure of electromagnetic relay Download PDFInfo
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- CN214152799U CN214152799U CN202120023299.8U CN202120023299U CN214152799U CN 214152799 U CN214152799 U CN 214152799U CN 202120023299 U CN202120023299 U CN 202120023299U CN 214152799 U CN214152799 U CN 214152799U
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Abstract
The utility model discloses an electromagnetic relay time delay structure, which comprises a magnetic circuit mechanism and a contact element which are arranged in a shell; the magnetic circuit mechanism comprises a coil rack arranged on the base, a through groove penetrating through the coil rack is longitudinally formed in the coil rack, an iron core is arranged in the through groove, and a delay ring capable of generating eddy current is sleeved on the iron core; an L-shaped yoke iron and an armature iron are arranged beside the coil frame, the armature iron comprises a longitudinal inclined section and a transverse inclined section connected with the longitudinal inclined section, the transverse inclined section is positioned above the iron core, and the end part of the longitudinal inclined section is connected with a push rod for pushing a movable spring; the transverse section of the L-shaped yoke iron is fixed with the iron core through riveting; the coil frame is provided with an extraction terminal, and the coil wound on the coil frame is connected with the extraction terminal. The utility model discloses set up the time delay ring on the iron core, the magnetic field that utilizes time delay ring and iron core to produce is asynchronous, makes the magnetic field that the iron core produced postpone, makes electromagnetic relay work safety and stability more.
Description
Technical Field
The utility model belongs to the technical field of the magnetic latching relay, a electromagnetic relay time delay structure is related to.
Background
The electromagnetic relay is an electric control device, widely used in household appliances, remote control, communication and automation control circuits, and has the substantial function of controlling the large current of an output loop through the small current of the control circuit.
When voltage is applied to two ends of a copper coil in the electromagnetic relay control circuit, current flows through the coil, the iron core and the coil can generate an electromagnetic effect, and the armature overcomes the elastic force of the movable spring under the action of electromagnetic attraction to push the movable spring and the contact of the static spring to be contacted with each other, so that the circuit conduction of the output loop is realized. When the voltage at the two ends of the coil is cancelled, the electromagnetic attraction force disappears, the armature is pushed back to the original position under the reaction force of the movable spring and the tension spring, meanwhile, the movable contact and the fixed contact are released, and the circuit of the output loop is disconnected. The circuit is switched on or off by the attraction and the release of the movable contact and the fixed contact.
The existing electromagnetic relay generally has no time delay function in the action process, a coil generates a magnetic field after being electrified, an iron core generates attraction on an armature, the whole magnetic loop can immediately enable the electromagnetic relay to act, moving and static contacts are closed, the current of a relay load end at the closing moment is random, and the magnitude of the current can be large or small.
Disclosure of Invention
The utility model provides a technical problem provide an electromagnetic relay time delay structure, the magnetic field that utilizes time delay ring and iron core to produce is asynchronous, makes the magnetic field that the iron core produced delay, makes electromagnetic relay work safety and stability more.
The utility model discloses a realize through following technical scheme:
a time delay structure of an electromagnetic relay comprises a magnetic circuit mechanism and a contact element which are arranged in a shell;
the magnetic circuit mechanism comprises a coil rack arranged on the base, a through groove penetrating through the coil rack is longitudinally formed in the coil rack, an iron core is arranged in the through groove, and a delay ring capable of generating eddy current is sleeved on the iron core;
the side of the coil rack is provided with an L-shaped yoke and an armature, the armature comprises a longitudinal inclined section and a transverse inclined section connected with the longitudinal inclined section, the transverse inclined section is positioned above the iron core through a pressure spring, and the end part of the longitudinal inclined section is connected with a push rod for pushing a movable spring; the transverse section of the L-shaped yoke iron is fixed with the iron core through riveting; the coil frame is provided with an extraction terminal, and the coil wound on the coil frame is connected with the extraction terminal.
Furthermore, the delay ring is arranged in the through groove of the coil rack, and the delay ring is arranged at the head, the middle or the tail of the iron core.
Furthermore, when the delay ring is arranged at the head or the tail of the iron core, the delay ring comprises a ring cap and a ring body fixedly connected with the ring cap, the outer diameter of the ring cap is larger than that of the ring body, and the ring cap is positioned at the head or the tail of the iron core.
Furthermore, the inner walls of the ring cap and the ring body are tightly attached to the outer wall of the iron core.
Furthermore, after the coil is electrified, the iron core generates a magnetic field firstly, the time delay ring generates eddy current at the beginning, and the eddy current generates a reverse magnetic field, so that the magnetic field generated by the iron core is delayed, and after the relay is electrified, the relay acts in a time delay manner.
Furthermore, after the coil is electrified, the armature is delayed to work by the delay ring on the iron core, the action delay of the displacement of the longitudinal and oblique section of the armature is realized, the action delay of the push rod is realized, the action of the movable reed is delayed to act, and the movable contact and the static contact are delayed to be closed.
Compared with the prior art, the utility model discloses following profitable technological effect has:
the utility model discloses an electromagnetic relay time delay structure, a time delay ring which can generate vortex is arranged on an iron core, the iron core sleeved with the time delay ring is assembled in a coil rack and is connected with a yoke by riveting, and an armature and the yoke are connected with a base by a pressure spring; this structure is all inequality with original relay structure, the cover is established the delay ring that can produce the vortex on the iron core, the delay ring is located the coil former, after the coil circular telegram, the iron core produces magnetic field earlier, the delay ring can produce the vortex at the beginning, the vortex can produce reverse magnetic field, thereby make the magnetic field that the iron core produced delay, after the relay circular telegram, the relay time delay action, electromagnetic relay load current generally is sinusoidal alternating current, electromagnetic relay's time delay action can avoid the peak value of load alternating current, it switches when load current is less to reach the relay, electromagnetic relay's galvanic corrosion has been less, and then whole electromagnetic relay's job stabilization nature and electric life condition have been increased, make electromagnetic relay work safe and stable more, the performance is also more excellent.
In addition, the iron core is provided with the delay ring which can generate eddy current, so that the action of the electromagnetic relay generates delay, circuit boards are not required to be reconfigured at two ends of the coil to increase electronic components, the complexity of the whole circuit is reduced, and the cost of the relay is also reduced; meanwhile, the use of an external circuit is reduced, so that the power consumption of the relay is lower, the heating is less, and the energy is saved.
Drawings
Fig. 1 is a schematic diagram of the time delay structure of the electromagnetic relay of the present invention;
fig. 2 is a schematic diagram of the iron core structure of the present invention;
fig. 3 is a schematic structural diagram of an electromagnetic relay according to the present invention;
the device comprises a base 1, a delay ring 6, a leading-out terminal 7, an iron core 8, an armature 9, an L-shaped yoke 10, a coil former 11, a coil 12, a compression spring 13, a pushing plate 14, a movable spring 15, a static spring 16, a ring cap 61 and a ring body 62, wherein the base is arranged on the base, the delay ring 6 is arranged on the delay ring, the leading-out terminal 7 is arranged on the core, the movable spring 15 is arranged on the pushing plate, the static spring 16 is arranged on the pushing plate, and the ring cap 62 is arranged on the ring body.
Detailed Description
The present invention will now be described in further detail with reference to the attached drawings, which are provided for purposes of illustration and not limitation.
Referring to fig. 1, 2 and 3, an electromagnetic relay delay structure includes a magnetic circuit mechanism and a contact element disposed in a housing;
the magnetic circuit mechanism comprises a coil rack 11 arranged on the base 1, a through groove penetrating through the coil rack 11 is longitudinally formed in the coil rack 11, an iron core 8 is arranged in the through groove, and a delay ring 6 capable of generating eddy current is sleeved on the iron core 8;
an L-shaped yoke 10 and an armature 9 are arranged beside the coil rack 11, the armature 9 comprises a longitudinal inclined section and a transverse inclined section connected with the longitudinal inclined section, the transverse inclined section is positioned above the iron core 8 through a pressure spring 13, and the end part of the longitudinal inclined section is connected with a push rod for pushing a movable spring piece 15; the transverse section of the L-shaped yoke 10 is fixed with the iron core 8 through riveting; the coil frame 11 is provided with an extraction terminal 7, and a coil 12 wound on the coil frame 11 is connected to the extraction terminal 7.
The utility model provides an electromagnetic relay time delay structure, refer to fig. 1 specifically, fig. 1 is a schematic structural diagram of a part of a leading-out terminal 7 which is cut open longitudinally to expose a time delay ring 6, and it can be seen that the time delay ring 6 which can generate vortex is sleeved on an iron core 8; the structure is novel in design, the coil 12 is connected with the leading-out terminal 7, the leading-out terminal 7 is fixed on the coil frame 11, the original direct current iron core 8 is sleeved with the delay ring 6 capable of generating eddy current, the iron core 8 and the delay ring 6 are assembled in the coil frame 11, and the transverse section of the L-shaped yoke 10 is fixed with the iron core 8 through riveting; the armature 9 is connected with the L-shaped yoke 10 through a compression spring 13. This structure is all inequality with original relay structure, the magnetic field that utilizes delay ring 6 and iron core 8 to produce is asynchronous, after 12 circular telegrams of coil, iron core 8 produces magnetic field earlier, delay ring 6 can produce the vortex at the beginning, the vortex can produce reverse magnetic field, thereby make the magnetic field that iron core 8 produced delay, after the relay circular telegrams, the relay time delay action, electromagnetic relay load current generally is sinusoidal alternating current, electromagnetic relay's time delay action can avoid the peak value of load alternating current, it switches when load current is less to reach the relay, electromagnetic relay's galvanic corrosion has been less, and then whole electromagnetic relay's job stabilization nature and the electric life condition have been increased, make electromagnetic relay work safe and stable more, the performance is also more excellent.
Specifically, refer to fig. 3, which is a schematic diagram of the structure of the delay structure of the electromagnetic relay according to the present invention. The utility model discloses a cover is established a delay ring 6 that can produce the vortex on iron core 8, makes electromagnetic relay time delay action. After coil 12 both ends add voltage, the electric current flows coil 12, iron core 8 and coil 12 produce the electromagnetic effect, the horizontal skew section of prior art's electromagnetic relay's armature 9 overcomes the elasticity of pressure spring 13 and movable contact 15's counter-force and the contact of iron core 8 under the effect of electromagnetic suction, armature 9's vertical skew section takes place the displacement left, thereby make pushing plate 14 move left, movable contact 15 and stationary contact 16 mutual actuation, realize that the circuit switches on, and the utility model discloses a because the cover is established a time delay ring 6 that can produce the vortex on iron core 8, coil 12 circular telegram back, iron core 8 produces magnetic field earlier, time delay ring 6 can produce the vortex at the beginning, the vortex can produce the back field, thereby the magnetic field that makes iron core 8 produce delays, after the relay circular telegram, relay time delay action. When the voltage across the coil 12 is removed, the electromagnetic attraction force disappears, the inclined section of the armature 9 is pushed back to the original position under the reaction force of the compression spring 13, and simultaneously the movable contact 15 and the fixed contact 16 are released, and the circuit of the output loop is disconnected.
Further, the delay ring 6 is disposed in the through groove of the coil frame 11, and the delay ring 6 is disposed at the head, middle or tail of the iron core 8.
Further, when the delay ring 6 is arranged at the head or the tail of the iron core 8, the delay ring 6 includes a ring cap 61 and a ring body 62 fixedly connected with the ring cap 61, the outer diameter of the ring cap 61 is larger than that of the ring body 62, and the ring cap 61 is located at the head or the tail of the iron core 8. The material of the delay ring 6 is copper, the material of the delay ring 6 can also be other materials with similar performance to copper, and the effect of delaying the generation of the magnetic field is achieved at the moment when the coil 12 is electrified. When the delay ring 6 is arranged in the middle of the iron core 8, the delay ring 6 is annularly sleeved in the middle of the iron core 8.
Further, the inner walls of the ring cap 61 and the ring body 62 are closely attached to the outer wall of the iron core 8, as shown in fig. 2. The position of the delay ring 6 on the iron core 8 is not limited, and may be near the head, or may be in the middle or at the riveting position of the iron core 8 and the yoke 10.
It should be noted that the setting position of the delay ring 6 on the iron core 8 is not limited, and the delay ring 6 can be set at the head, middle or tail of the iron core 8, as long as the delay ring 6 is set outside the iron core 8, the iron core 8 sleeved with the delay ring 6 is installed in the coil rack 11, after the coil 12 is electrified, the iron core 8 generates a magnetic field first, the delay ring 6 generates an eddy current at the beginning, the eddy current generates a reverse magnetic field, so that the magnetic field generated by the iron core 8 is delayed, and after the relay is electrified, the relay performs a delay action.
Further, after the coil 12 is powered on, the iron core 8 generates a magnetic field first, the delay ring 6 generates an eddy current at the beginning, and the eddy current generates a reverse magnetic field, so that the magnetic field generated by the iron core 8 is delayed, and the relay acts in a delayed manner after the relay is powered on.
Further, after the coil 12 is electrified, the armature 9 is delayed to work by the delay ring 6 on the iron core 8, the action of the displacement of the longitudinal and oblique section of the armature 9 is delayed, the action of the push rod is delayed, the movable reed 15 is delayed to act, and therefore the movable contact and the fixed contact are delayed to be closed. Specifically, after voltage is applied to two ends of the coil 12, the delay ring 6 can play a certain delay role, so that the armature 9 can perform delay action, the movable spring piece 15 can be prompted to perform delay action, the purpose of closing the movable contact and the static contact in a delayed manner is further achieved, the wave crest and the wave trough of the load alternating current are avoided, and the service life of the electromagnetic relay is prolonged.
By the technical scheme, the utility model provides an electromagnetic relay time delay structure, set up the time delay ring 6 that can produce the vortex on iron core 8, assemble the iron core 8 that is equipped with the time delay ring 6 in the coil former 11, link to each other with yoke 10 through riveting, armature 9 and yoke 10 link together with base 1 through the pressure spring 13; the structure is different from the original relay structure, the time delay ring 6 which can generate vortex is sleeved on the iron core 8, the time delay ring 6 and the iron core 8 are positioned in the coil rack 11, the utility model utilizes the asynchronous magnetic field generated by the time delay ring 6 and the iron core 8, after the coil 12 is electrified, the iron core 8 generates a magnetic field firstly, the time delay ring 6 generates vortex at the beginning, the vortex can generate a reverse magnetic field, thereby the magnetic field generated by the iron core 8 is delayed, after the relay is electrified, the relay time delay action, the load current of the electromagnetic relay is generally sine alternating current, the time delay action of the electromagnetic relay can avoid the peak value of the load alternating current, the relay is switched when the load current is smaller, the electro-corrosion of the electromagnetic relay is less, the working stability and the electric service life condition of the whole electromagnetic relay are increased, and the work of the electromagnetic relay is safer and more stable, the performance is also better.
In addition, the iron core 8 is provided with the delay ring 6 which can generate eddy current, so that the action of the electromagnetic relay generates delay, electronic components are not needed to be added on the circuit boards which are arranged at the two ends of the coil 12, the complexity of the whole circuit is reduced, and the cost of the relay is also reduced; meanwhile, the use of an external circuit is reduced, so that the power consumption of the relay is lower, the heating is less, and the energy is saved.
The embodiments given above are preferred examples for implementing the present invention, and the present invention is not limited to the above-described embodiments. Any non-essential addition and replacement made by the technical features of the technical solution of the present invention by those skilled in the art all belong to the protection scope of the present invention.
Claims (4)
1. A time delay structure of an electromagnetic relay is characterized by comprising a magnetic circuit mechanism and a contact element which are arranged in a shell;
the magnetic circuit mechanism comprises a coil rack (11) arranged on the base (1), a through groove penetrating through the coil rack (11) is longitudinally formed in the coil rack (11), an iron core (8) is arranged in the through groove, and a delay ring (6) capable of generating eddy current is sleeved on the iron core (8);
an L-shaped yoke iron (10) and an armature iron (9) are arranged beside the coil rack (11), the armature iron (9) comprises a longitudinal inclined section and a transverse inclined section connected with the longitudinal inclined section, the transverse inclined section is positioned above the iron core (8) through a pressure spring (13), and the end part of the longitudinal inclined section is connected with a push rod used for pushing a movable spring piece (15); the transverse section of the L-shaped yoke (10) is fixed with the iron core (8) through riveting; the coil rack (11) is provided with an extraction terminal (7), and a coil (12) wound on the coil rack (11) is connected with the extraction terminal (7).
2. The time delay structure of an electromagnetic relay according to claim 1, characterized in that the time delay ring (6) is arranged in a through slot of the coil frame (11), and the time delay ring (6) is arranged at the head, the middle or the tail of the iron core (8).
3. The electromagnetic relay time delay structure according to claim 2, characterized in that the time delay ring (6) is arranged at the head or the tail of the iron core (8), the time delay ring (6) comprises a ring cap (61) and a ring body (62) fixedly connected with the ring cap, the outer diameter of the ring cap (61) is larger than the outer diameter of the ring body (62), and the ring cap (61) is arranged at the head or the tail of the iron core (8).
4. The time delay structure of an electromagnetic relay according to claim 3, characterized in that the inner walls of the ring cap (61) and the ring body (62) are tightly attached to the outer wall of the iron core (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120023299.8U CN214152799U (en) | 2021-01-06 | 2021-01-06 | Time delay structure of electromagnetic relay |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120023299.8U CN214152799U (en) | 2021-01-06 | 2021-01-06 | Time delay structure of electromagnetic relay |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214152799U true CN214152799U (en) | 2021-09-07 |
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ID=77546631
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120023299.8U Active CN214152799U (en) | 2021-01-06 | 2021-01-06 | Time delay structure of electromagnetic relay |
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| Country | Link |
|---|---|
| CN (1) | CN214152799U (en) |
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2021
- 2021-01-06 CN CN202120023299.8U patent/CN214152799U/en active Active
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