CN114823238B - Electromagnetic switch with overload protection - Google Patents
Electromagnetic switch with overload protection Download PDFInfo
- Publication number
- CN114823238B CN114823238B CN202210750129.9A CN202210750129A CN114823238B CN 114823238 B CN114823238 B CN 114823238B CN 202210750129 A CN202210750129 A CN 202210750129A CN 114823238 B CN114823238 B CN 114823238B
- Authority
- CN
- China
- Prior art keywords
- sliding
- rod
- positive electrode
- conductive
- overload protection
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
- H01H71/10—Operating or release mechanisms
- H01H71/12—Automatic release mechanisms with or without manual release
- H01H71/24—Electromagnetic mechanisms
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H83/00—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current
- H01H83/12—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current operated by voltage falling below a predetermined value, e.g. for no-volt protection
Abstract
The invention provides an electromagnetic electric switch with overload protection, which comprises a protective shell, an electromagnetic adsorption device, a protection device and a capacitor, wherein the electromagnetic adsorption device, the protection device and the capacitor are fixedly accommodated in the protective shell; the invention can maintain the loop in the circuit and prevent the bad influence on the electric appliance when the external power supply is interrupted and the low voltage is generated; the capacitor is adopted to supply power for the electrical appliance when the external power supply is interrupted and low voltage occurs, and is beneficial to protecting the safe power utilization of the electrical appliance.
Description
Technical Field
The invention relates to the technical field of electric switches, in particular to an electromagnetic electric switch with overload protection.
Background
When equipment and a power supply line have faults in the operation process or equipment load is not matched excessively, current (or voltage) can exceed the range and the limit of the allowable work of the equipment and the power supply line, and overload can happen at the moment.
Therefore, it is necessary to provide an electromagnetic switch with overload protection to solve the above problems.
Disclosure of Invention
In order to solve the above problems, the present invention provides an electromagnetic electric switch with overload protection.
The invention is realized by the following technical scheme:
the invention provides an electromagnetic electric switch with overload protection, which comprises a protective shell, an electromagnetic adsorption device, a protection device and a capacitor, wherein the electromagnetic adsorption device, the protection device and the capacitor are fixedly accommodated in the protective shell, the protective shell is provided with a power input end and a power output end, the protection device is electrically connected with the power output end, the capacitor is connected with the power output end in parallel, the protection device comprises a first fixed shell, a connecting component and a conductive component, the first fixed shell is fixedly connected with one end of the electromagnetic adsorption device, one side of the first fixed shell is provided with a first positive electrode access position, a first positive electrode output position and a first negative electrode connecting part, the connecting component is connected with one end of the first fixed shell in a sliding mode and faces the electromagnetic adsorption device, the conductive component is fixedly connected with the other end of the first fixed shell and extends to the connecting component, one end of the connecting component is electrically connected with the first positive electrode access position, the first positive electrode output position is electrically connected with the electromagnetic adsorption device, one end of the first negative electrode connecting part is electrically connected with the electromagnetic adsorption device, the first positive electrode output position and the first negative electrode connecting component are electrically connected with the electromagnetic adsorption device when the electromagnetic adsorption device is in contact with the connecting component, and the electromagnetic adsorption device is normally, and the electromagnetic adsorption device is electrically connected with the connecting component, so that the electromagnetic adsorption device, and the connecting component can adsorb the electromagnetic adsorption device when the electromagnetic adsorption device and the electromagnetic adsorption device is normally adsorb the electromagnetic adsorption component, the electromagnetic adsorption circuit, and the electromagnetic adsorption component, and the electromagnetic adsorption device, the connecting component, and the electromagnetic adsorption device can normally adsorb the electromagnetic adsorption device.
Further, coupling assembling includes hoop, slip stick, slip shell, first elastic component, conducting rod, hou gai, hoop fixed connection in slip shell one end, the slip stick accept in the slip shell and with slip shell sliding connection just runs through the hoop, the slip stick with the hoop contact, first elastic component one end with the slip shell butt, slip stick one end is equipped with the support ring, the first elastic component other end with the support ring butt, the conducting rod inserts in the slip stick, the conducting rod runs through the hou gai, the hou gai with slip shell other end fixed connection shelters from the slip stick, the conducting rod with electrically conductive piece contact.
Further, a first placing groove, a first sliding groove and a second placing groove are arranged in the sliding shell, the first sliding groove is respectively communicated with the first placing groove and the second placing groove, the iron ring is contained in the first placing groove, the sliding rod is contained in the first sliding groove, the first elastic piece is contained in the second placing groove, one end of the first elastic piece is abutted against the groove wall of the second placing groove, the support ring is aligned with the second placing groove, and the other end of the second elastic piece is abutted against the support ring.
Furthermore, a plurality of anti-skidding lines are circumferentially and uniformly distributed on the groove wall of the second placing groove.
Furthermore, the sliding rod comprises an iron rod and an insulating rod, the iron rod is fixedly connected to one end of the insulating rod and is in contact with the iron ring, an insertion hole is formed in the insulating rod, and one part of the conductive rod is inserted into the insertion hole.
Furthermore, a first electric connection position and a second electric connection position are arranged on the conductive rod, the first electric connection position is in contact with the conductive piece, and the second electric connection position is electrically connected with the first positive electrode access position.
Furthermore, a contact piece is arranged on the conductive piece, is positioned below the first electric connection position and is in contact with the first electric connection position to form electric connection.
Further, the electromagnetic adsorption device comprises a second fixed shell and an electromagnet, a second positive electrode access position, a second positive electrode output position and a second negative electrode connecting portion are arranged on the second fixed shell, the electromagnet is transversely and fixedly connected in the second fixed shell and faces the protection device, a positive electrode connecting position and a negative electrode connecting position are arranged on the electromagnet, the positive electrode connecting position is electrically connected with the second positive electrode access position, the negative electrode connecting position is electrically connected with the second negative electrode connecting portion, the second positive electrode access position is electrically connected with the second positive electrode output position, the second positive electrode access position is electrically connected with the second negative electrode connecting portion respectively and the power input end is electrically connected, and the second positive electrode output position is electrically connected with the second negative electrode connecting portion respectively.
Further, be equipped with on the axle center of electro-magnet and be used for accomodating coupling assembling dodge the hole.
Further, coupling assembling one end is equipped with the poker rod, the poker rod runs through first set casing, electromagnetic switch that possesses overload protection still includes the push button, protective housing one side is equipped with the second sliding tray, the push button runs through the second sliding tray and with poker rod one end fixed connection.
The invention has the beneficial effects that:
the invention adopts the electromagnetic adsorption device to carry out magnetic adsorption on the protection device, so that a loop in the circuit can be maintained; when the power input end is connected with an external power supply, the protection device is not in contact with the electromagnetic adsorption device, namely the connecting component is not in contact with the conductive piece and forms electric connection, the electromagnetic adsorption device does not generate magnetic force at the moment, the push button needs to be manually pushed so that the protection device is pushed towards the electromagnetic adsorption device and is tightly attached to the electromagnetic adsorption device to enable a circuit to form a loop, when the loop is formed, the electromagnetic adsorption device continuously adsorbs the protection device, namely the connecting component is in contact with the conductive piece and forms electric connection, when the voltage of the external power supply is too low, the magnetic force of the electromagnetic adsorption device on the protection device cannot be maintained, at the moment, the connecting component resets under the action of the second elastic piece, the connecting component is separated from the conductive piece to form electric connection, namely the loop is not formed any more, and therefore, the adverse effect on an electric appliance when the external power supply is interrupted and low voltage occurs can be prevented;
according to the invention, the magnetic force of the electromagnetic adsorption device is increased when the circuit is overloaded and supplies power, so that the connecting assembly is magnetically adsorbed, the sliding rod slides towards the inside of the electromagnetic adsorption device, namely, the sliding rod extends out and is staggered with the iron ring, the staggered supporting ring enters the second placing groove, the anti-skid veins on the groove wall of the second placing groove clamp and fix the supporting ring, namely, the sliding rod keeps extending into the electromagnetic adsorption device, so that the connecting assembly is electrically connected with the conductive piece when the connecting assembly is separated from the contact, and thus, the circuit connection can be timely disconnected when the circuit is overloaded and supplied power, and the safe power utilization of an electrical appliance is effectively protected;
the invention adopts the capacitor to provide power supply for the electric appliance when the external power supply is interrupted and the low voltage is generated; when the external power supply is interrupted and low voltage is generated, the protection device resets under the action of the second elastic piece, namely the circuit loop is disconnected, and the capacitor can supply power to the electrical appliance within a period of time, so that buffering time for cutting off the power consumption of the electrical appliance is provided for users, and the protection of the safe power consumption of the electrical appliance is facilitated;
in conclusion, the electromagnetic switch with overload protection can maintain the loop in the circuit and prevent the bad influence on the electric appliance when the external power supply is interrupted and the low voltage is generated; the electromagnetic adsorption device is adopted to increase the magnetic force when the circuit is overloaded and supplies power, so that the connecting component is magnetically adsorbed, and the safe power utilization of the electric appliance is effectively protected; the capacitor is adopted to supply power for the electrical appliance when the external power supply is interrupted and the low voltage is generated, so that the safety power utilization of the electrical appliance is protected.
Drawings
Figure 1 is an overall schematic view of an electromagnetic electric switch with overload protection according to the invention;
figure 2 is another perspective view of an electromagnetic switch with overload protection according to the present invention;
FIG. 3 is a schematic view of an electromagnetic attraction device of an electromagnetic switch with overload protection according to the present invention;
fig. 4 is another angle schematic diagram of the electromagnetic adsorption device of the electromagnetic switch with overload protection according to the present invention;
figure 5 is an exploded view of a connecting assembly of an electromagnetic switch with overload protection of the present invention;
figure 6 is an exploded view of the protection device of the electromagnetic switch with overload protection of the present invention;
figure 7 is a cross-sectional view of a protection device for an electromagnetic electric switch with overload protection according to the present invention;
figure 8 is a perspective view of a protection device for an electromagnetic electric switch with overload protection according to the present invention;
figure 9 is another perspective view of the protection device of the electromagnetic switch with overload protection of the present invention;
figure 10 is a schematic view of a contact bar of an electromagnetic switch with overload protection according to the present invention;
fig. 11 is a schematic view of an electrically conductive member of an electromagnetic switch with overload protection according to the present invention;
figure 12 is a schematic view of a sliding bar of an electromagnetic switch with overload protection according to the present invention;
figure 13 is a schematic view of a sliding housing of an electromagnetic switch with overload protection of the present invention.
The reference numbers are as follows:
a protective shell 1; a power input terminal 11; a first positive connection 111; a first negative connection site 112; a power supply output terminal 12; a second positive connection bit 121; a second negative connection site 122; a second slide groove 13; a first flag 14; a second flag 15;
an electromagnetic adsorption device 2; a second stationary case 21; a second positive access location 211; a second positive output bit 212; a second negative electrode connection portion 213; a second negative access location 2131; a second negative output bit 2132; a fixed position 214; an electromagnet 22; a positive connection bit 221; a negative connection bit 222; relief holes 223;
a protection device 3; the first stationary case 31; a first positive access bit 311; a first positive output bit 312; a first negative electrode connection portion 313; a first negative access location 3131; a first negative output bit 3132; a fixing plate 314; a sliding cavity 315; a connecting assembly 32; an iron ring 321; a slide bar 322; a support ring 3221; an iron rod 3222; an insulating rod 3223; an insertion hole 32231; a slide case 323; a first placing groove 3231; a first slide groove 3232; a second placing groove 3233; anti-slip threads 32331; a first elastic member 324; a conductive rod 325; a first electrical connection site 3251; a second electrical connection site 3252; a rear cover 326; a tap lever 327; a conductive member 33; a contact piece 331; a second elastic member 34;
a capacitor 4;
pushing the button 5.
Detailed Description
In order to more clearly and completely explain the technical scheme of the invention, the invention is further explained by combining the attached drawings.
Referring to fig. 1 to 13, the present invention provides an electromagnetic switch with overload protection, including a protective case 1, an electromagnetic adsorption device 2, a protection device 3, and a capacitor 4, where the electromagnetic adsorption device 2, the protection device 3, and the capacitor 4 are all fixedly accommodated in the protective case 1, the protective case 1 is provided with a power input end 11 and a power output end 12, the protection device 3 is electrically connected to the power output end 12, the capacitor 4 is connected in parallel to the power output end 12, the protection device 3 includes a first fixed case 31, a connection component 32, and a conductive component 33, the first fixed case 31 is fixedly connected to one end of the electromagnetic adsorption device 2, one side of the first fixed case 31 is provided with a first positive electrode access position 311, a first positive electrode output position 312, a first negative electrode connection component 313, the first positive electrode output position 312 is electrically connected to the conductive component 33, the first positive electrode connection component 311 is slidably connected to one end of the first fixed case 31 and faces the electromagnetic adsorption device 2, the conductive component 33 is fixedly connected to the other end of the first fixed case 31 and extends to the first positive electrode connection component 32, one end of the first positive electrode connection component 32 is electrically connected to the first positive electrode connection component 311, the first positive electrode connection component 312 is electrically connected to the conductive component 311, the electromagnetic adsorption component 311, the first positive electrode connection component 33 is electrically connected to the electromagnetic adsorption component 33, and the electromagnetic adsorption component 32 is electrically connected to the electromagnetic adsorption component 32, when the electromagnetic adsorption component 32 is in contact with the electromagnetic adsorption component 32, so that the electromagnetic adsorption component, the electromagnetic adsorption component 32, and the electromagnetic adsorption component 32, the electromagnetic adsorption component is electrically connected to form a normal circuit, and the electromagnetic adsorption component is connected to form a circuit, and the electromagnetic adsorption component 32, the electromagnetic adsorption component is connected to form a circuit, the electromagnetic adsorption component 32, and the electromagnetic adsorption component is connected to form a circuit, the electromagnetic adsorption component 32.
In the present embodiment:
the protective shell 1 is used for providing a protective structure for the electromagnetic adsorption device 2, the protective device 3 and the capacitor 4;
the power input end 11 is used for accessing an external circuit, the power input end 11 includes a first positive electrode connection position 111 and a first negative electrode connection position 112, the first positive electrode connection position 111 accesses a positive electrode circuit of the external circuit, the first negative electrode connection position 112 accesses a negative electrode circuit of the external circuit, the first positive electrode connection position 111 is electrically connected with a second positive electrode access position 211 on the electromagnetic adsorption device 2 through a conducting wire, and the first negative electrode connection position 112 is electrically connected with a second negative electrode connection portion 213 on the electromagnetic adsorption device 2 through a conducting wire;
the power output end 12 is used for accessing an external electrical appliance, the power output end 12 includes a second positive electrode connection position 121 and a second negative electrode connection position 122, the second positive electrode connection position 121 is electrically connected with a first positive electrode output position 312 on the protection device 3 through a conductive wire, the second negative electrode connection position 122 is electrically connected with a first negative electrode connection portion 313 through a conductive wire, the capacitor 4 is connected in parallel with the second positive electrode connection position 121 and the second negative electrode connection position 122, and the second positive electrode connection position 121 and the second negative electrode connection position 122 are respectively accessed to a positive electrode and a negative electrode of the external electrical appliance;
the electromagnetic adsorption device 2 is used for adsorbing the protection device 3 through electromagnetic force;
the protection device 3 is used for being matched with the electromagnetic adsorption device 2 to break a circuit of the circuit under the condition of overload of the circuit;
the first fixing case 31 is used for providing a sliding support structure for the connecting assembly 32;
the first positive electrode access position 311 is used for connecting the second positive electrode output position 212 in the electromagnetic adsorption device 2 through a conductive wire;
the first positive output bit 312 is used to connect to the second positive connection bit 121 on the power output 12 through a conductive line;
the first negative electrode connecting portion 313 is used for being respectively connected to the second negative electrode connecting portion 213 and the second negative electrode connecting position 122 on the power output end 12 through conductive wires, the first negative electrode connecting portion 313 includes a first negative electrode access position 3131 and a first negative electrode output position 3132, the first negative electrode access position 3131 is electrically connected to the second negative electrode connecting portion 213 through a conductive wire, and the first negative electrode output position 3132 is electrically connected to the second negative electrode connecting position 122 through a conductive wire;
the connecting assembly 32 is used for being attracted by the magnetic force of the electromagnetic attraction device 2, and slides relative to the first fixed shell 31 after being attracted by the magnetic force of the electromagnetic attraction device 2 and is in contact with the conductive member 33 to form electric connection;
the conductive element 33 is used for forming an electrical connection with the connecting assembly 32, and the conductive element 33 is electrically connected with the first positive output bit 312 through a conductive wire;
the capacitor 4 is used for supplying power for the electric appliance when the external power supply is interrupted and the low voltage is generated;
specifically, the first fixing shell 31 is provided with a sliding cavity 315, and the connecting assembly 32 penetrates through the sliding cavity 315;
the protection device 3 further comprises a second elastic member 34, the connection assembly 32 penetrates through the second elastic member 34, one end of the second elastic member 34 is abutted with the first fixed shell 31, the other end of the second elastic member 34 is abutted with the connection assembly 32, and the second elastic member 34 is a spring and used for providing elastic supporting force for the resetting of the connection assembly 32;
when the power input end 11 is connected to an external power source, because the protection device 3 is not in contact with the electromagnetic adsorption device 2, that is, the connection component 32 is not in contact with and electrically connected to the conductive component 33, and at this time, the electromagnetic adsorption device 2 does not generate magnetic force, the push button 5 needs to be manually pushed, so that the protection device 3 is pushed towards the electromagnetic adsorption device 2 and tightly attached to the electromagnetic adsorption device 2 to form a circuit, when the circuit is formed, the electromagnetic adsorption device 2 continuously adsorbs the protection device 3, that is, the connection component 32 is in contact with and electrically connected to the conductive component 33, when the voltage of the external power source is too low, the magnetic force of the electromagnetic adsorption device 2 to the protection device 3 cannot be maintained, at this time, the connection component 32 is reset under the action of the second elastic component 34, after reset, the connection component 32 is separated from the contact with the conductive component 33, that is formed when the connection component is not in contact with the conductive component 33, that the circuit is not formed any more, thus, the adverse effect on the electrical appliance can be prevented when the external power source is continuously disconnected and the low voltage occurs;
when the circuit is overloaded, the magnetic force of the electromagnetic adsorption device 2 is increased when the circuit is overloaded and supplies power, the increased magnetic force can perform excessive magnetic adsorption on the connecting component 32, so that a part of the structure in the connecting component 32 is inserted into the electromagnetic adsorption device 2, and further the connecting component 32 is electrically connected with the conductive piece 33 when the connecting component is separated from contact, and thus, the circuit connection can be timely disconnected when the circuit is overloaded and supplied power, and the safe power utilization of an electrical appliance is effectively protected;
when the external power supply is interrupted and the low voltage is continuously generated, the protection device 3 resets under the action of the second elastic piece 34, namely, the circuit loop is disconnected, the capacitor 4 can supply power for the electrical appliance within a period of time, the buffering time for cutting off the power consumption of the electrical appliance is provided for a user, and the protection of the safe power consumption of the electrical appliance is facilitated.
Further, the connection assembly 32 includes an iron ring 321, a sliding rod 322, a sliding shell 323, a first elastic member 324, a conductive rod 325, and a rear cover 326, wherein the iron ring 321 is fixedly connected to one end of the sliding shell 323, the sliding rod 322 is accommodated in the sliding shell 323, slidably connected to the sliding shell 323, and penetrates through the iron ring 321, the sliding rod 322 contacts the iron ring 321, one end of the first elastic member 324 abuts against the sliding shell 323, one end of the sliding rod 322 is provided with a support ring 3221, the other end of the first elastic member 324 abuts against the support ring 3221, the conductive rod 325 is inserted into the sliding rod 322, the conductive rod 325 penetrates through the rear cover 326, the rear cover 326 is fixedly connected to the other end of the sliding shell 323 and shields the sliding rod 322, and the conductive rod 325 contacts with the conductive member 33; a first placing groove 3231, a first sliding groove 3232 and a second placing groove 3233 are arranged in the sliding shell 323, the first sliding groove 3232 is respectively communicated with the first placing groove 3231 and the second placing groove 3233, the iron ring 321 is accommodated in the first placing groove 3231, the sliding rod 322 is accommodated in the first sliding groove 3232, the first elastic piece 324 is accommodated in the second placing groove 3233, one end of the first elastic piece is abutted to the groove wall of the second placing groove 3233, the support ring 3221 is aligned with the second placing groove 3233, and the other end of the second elastic piece 34 is abutted to the support ring 3221; a plurality of anti-skid threads 32331 are circumferentially and uniformly distributed on the groove wall of the second placing groove 3233; the sliding rod 322 comprises an iron rod 3222 and an insulating rod 3223, the iron rod 3222 is fixedly connected to one end of the insulating rod 3223 and is in contact with the iron ring 321, an insertion hole 32231 is formed in the insulating rod 3223, and a part of the conductive rod 325 is inserted into the insertion hole 32231; the conductive rod 325 is provided with a first electric connection position 3251 and a second electric connection position 3252, the first electric connection position 3251 is in contact with the conductive member 33, and the second electric connection position 3252 is electrically connected with the first positive electrode access position 311; the conductive member 33 is provided with a contact piece 331, and the contact piece 331 is located below the first electrical connection bit 3251 and contacts and electrically connects with the first electrical connection bit 3251.
In the present embodiment:
the iron ring 321 is used for being adsorbed by the electromagnetic adsorption device 2;
the sliding rod 322 is used for sliding and extending into the electromagnetic adsorption device 2;
the support ring 3221 is configured to be clamped in the second placement groove 3233 when the sliding rod 322 slides to the end towards the electromagnetic absorption device 2, so that the sliding rod 322 can stay at the extended position, and meanwhile, the support ring 3221 is also configured to provide an elastic support structure for the first elastic member 324, when the circuit is normally powered, the connection assembly 32 is attracted by a magnetic force, and the first elastic member 324 supports the support ring 3221, so that the sliding rod 322 is not attracted into the electromagnetic absorption device 2 by the magnetic force of the normal power supply;
the iron rod 3222 is used for being adsorbed by the electromagnetic adsorption device 2;
the insulating rod 3223 is used for isolating the electric connection between the iron rod 3222 and the conducting rod 325;
the insertion hole 32231 is used to provide a space for the conductive rod 325 to be inserted and fixed;
the sliding shell 323 is used for providing a stable supporting structure for the iron ring 321 and the sliding rod 322;
the first placing groove 3231 is used to provide a placing space for the hoop 321;
the first slide groove 3232 is used to provide a sliding space for the slide bar 322;
the second positioning slot 3233 is used to provide a space for the first elastic element 324 to be positioned, and also provide a space for the supporting ring 3221 to be accommodated when sliding;
the anti-slip threads 32331 are used for increasing the friction force between the supporting ring 3221 and the groove wall of the second placing groove 3233, so that the supporting ring 3221 can stay in the second placing groove 3233;
the first elastic member 324 is a spring, and is configured to provide an elastic supporting force for the sliding rod 322 when the sliding rod 322 is reset, so that the sliding rod 322 is not attracted into the electromagnetic attraction device 2 by the magnetic force of the normal power supply;
the conductive bar 325 is used for conduction;
the first electrical connection site 3251 is used for making contact with and making electrical connection with the contact pad 331;
the second electrical connection site 3252 is used to form an electrical connection with the first positive access site 311 through a conductive line;
the rear cover 326 is used for preventing the sliding rod 322 from sliding out of the first sliding groove 3232;
the contact piece 331 is a copper sheet and is used for contacting and forming electrical connection with the first electrical connection position 3251;
specifically, when the circuit is overloaded and supplies power, the magnetic force is instantly increased, the magnetic force magnetically adsorbs the connection assembly 32, the sliding rod 322 slides towards the inside of the electromagnetic adsorption device 2, that is, the sliding rod 322 extends out and is staggered with the iron ring 321, the supporting ring 3221 enters the second placing groove 3233 after being staggered, the supporting ring 3221 is clamped and fixed by the anti-sliding veins 32331 on the groove wall of the second placing groove 3233, that is, the sliding rod 322 is maintained in a state of extending into the electromagnetic adsorption device 2, so that the first electrical connection position 3251 on the conductive rod 325 is electrically connected with the contact piece 331 on the conductive piece 33 when the contact is broken, the electromagnetic adsorption device 2 cannot generate magnetic force after being powered off, the support assembly 32 is reset, the first electrical connection position 3251 still does not contact with the contact piece 331 after being reset, the elastic force of the first elastic piece 324 is not enough to push the supporting ring 3221 to be reset, and the sliding rod 322 is still in a state of extending into the electromagnetic adsorption device 2 at this time, so that the circuit can be timely disconnected when the circuit is overloaded and the circuit is effectively protected to safely and supply power for the electrical appliance.
Further, the electromagnetic adsorption device 2 includes a second fixed housing 21 and an electromagnet 22, the second fixed housing 21 is provided with a second positive electrode connection position 211, a second positive electrode output position 212 and a second negative electrode connection portion 213, the electromagnet 22 is transversely and fixedly connected in the second fixed housing 21 and faces the protection device 3, the electromagnet 22 is provided with a positive electrode connection position 221 and a negative electrode connection position 222, the positive electrode connection position 221 is electrically connected with the second positive electrode connection position 211, the negative electrode connection position 222 is electrically connected with the second negative electrode connection portion 213, the second positive electrode connection position 211 is electrically connected with the second positive electrode output position 212, the second positive electrode connection position 211 and the second negative electrode connection portion 213 are electrically connected with the power input end 11, and the second positive electrode output position 212 and the second negative electrode connection portion 213 are electrically connected with the protection device 3; an avoiding hole 223 for accommodating the connection assembly is provided on the axis of the electromagnet 22.
In the present embodiment:
second stationary housing 21 is used to provide a stable support structure for electromagnet 22;
the second positive electrode access bit 211 is used for being connected with the first positive electrode connection bit 111 on the power input end 11 through a conductive wire;
the second positive output bit 212 is used for connecting the first positive access bit 311 on the protection device 3 through a conductive wire;
the second negative electrode connecting portion 213 is used for connecting the first negative electrode connecting position 112 on the power input end 11 and the first negative electrode connecting portion 313 on the protection device 3 through a conductive wire, the second negative electrode connecting portion 213 includes a second negative electrode access position 2131 and a second negative electrode output position 2132, the second negative electrode access position 2131 is electrically connected with the first negative electrode connecting position 112 through a conductive wire, and the second negative electrode output position 2132 is electrically connected with the first negative electrode access position 3131 through a conductive wire;
the electromagnet 22 is used for attracting the connecting component 32 through magnetic force;
the positive electrode connecting position 221 is used for being electrically connected with the second positive electrode access position 211 through a conducting wire;
the negative electrode connection site 222 is electrically connected to the second negative electrode connection portion 213 through a conductive wire;
the avoiding hole 223 is used for providing a placing space for the iron rod 3222;
specifically, one end of the second fixing shell 21 is provided with a fixing position 214, one end of the first fixing shell 31 is provided with a fixing plate 314, and the fixing plate 314 is fixedly connected with the fixing position 214;
when the circuit is powered normally, the magnetic force generated by the electromagnet 22 is only enough to attract the connecting component 32 and is not enough to suck the iron rod 3222 out, when the circuit is powered overloaded, the magnetic force generated by the electromagnet 22 is increased, and the increased magnetic force can quickly suck the iron rod 3222 out, so that the iron rod 3222 enters the avoiding hole 223, and the conductive rod 325 at the other end of the sliding rod 322 is separated from the contact with the conductive component 33 after the iron rod 3222 enters the avoiding hole 223, thereby powering off the circuit.
Further, coupling assembling 32 one end is equipped with poker rod 327, and poker rod 327 runs through first fixed shell 31, and electromagnetic switch who possesses overload protection still includes and promotes button 5, and protective housing 1 one side is equipped with second sliding tray 13, and promotion button 5 runs through second sliding tray 13 and with poker rod 327 one end fixed connection.
In the present embodiment:
the tap lever 327 is used to provide a convenient structure for the connecting assembly 32 to tap for the user;
the push button 5 is used to provide a structure for the user to slide the push lever 327;
the second sliding groove 13 is used for providing a sliding space for pushing the button 5;
specifically, a first mark 14 and a second mark 15 are arranged on one side of the second sliding groove 13, the first mark 14 is a position corresponding to the push button 5 when the connecting assembly 32 is adsorbed on the electromagnet 22 and the sliding rod 322 does not extend into the avoiding hole 223 on the electromagnet 22, that is, the push button 5 is located above the first mark 14 at this time; the second mark 15 is the corresponding position of the push button 5 when the sliding rod 322 extends into the avoiding hole 223 on the electromagnet 22, that is, the push button 5 is located above the second mark 15 at this time; when the user uses the device, the user pushes the push button 5 to the position above the first mark 14 after the device is powered on, then the internal circuit of the device is turned on, and when the circuit is overloaded and supplies power, the poke rod 327 slides under the driving of the connecting component 32, so that the push button 5 is driven to the position above the second mark 15, and the user can judge the power-off condition of the device according to the position where the push button 5 stays.
Of course, the present invention may have other embodiments, and based on the embodiments, those skilled in the art can obtain other embodiments without any creative effort, and all of them are within the protection scope of the present invention.
Claims (10)
1. The utility model provides an electromagnetic electric switch who possesses overload protection, its characterized in that, includes protective housing, electromagnetism adsorption equipment, protection device, condenser, electromagnetism adsorption equipment the protection device the condenser all fixed accept in the protective housing, the protective housing is equipped with power input end, power output end, protection device with power output end electricity is connected, the condenser with power output end is parallelly connected, protection device includes first set casing, coupling assembling, electrically conductive piece, first set casing with electromagnetism adsorption equipment one end fixed connection, first set casing one side is equipped with first positive pole and inserts position, first positive pole output position, first negative pole connecting portion, coupling assembling with first set casing one end sliding connection and orientation electromagnetism adsorption equipment, electrically conductive piece fixed connection in the first set casing other end and extend to coupling assembling, coupling assembling one end with first positive pole inserts the position electricity and connects, first positive pole output position with the electricity is connected, first positive pole insert the position, first negative pole one end all with electromagnetism adsorption equipment electricity is connected, first positive pole output position with the one end of first negative pole connecting portion all with electromagnetism adsorption equipment electricity is connected when the electromagnetism adsorption equipment gets into the coupling assembling, the magnetism power supply circuit electricity is connected with the adsorption equipment electricity, the electricity is connected with the magnetism connection assembly that adsorbs the electricity, makes the electromagnetism adsorption equipment get into the electricity and adsorb the magnetism connection assembly that the electricity is connected in the magnetism connection assembly that adsorbs the electricity.
2. The electromagnetic switch with overload protection as claimed in claim 1, wherein the connecting assembly includes an iron ring, a sliding rod, a sliding casing, a first elastic member, a conductive rod, and a rear cover, the iron ring is fixed to one end of the sliding casing, the sliding rod is received in the sliding casing, slidably connected to the sliding casing, and penetrates through the iron ring, the sliding rod contacts with the iron ring, one end of the first elastic member abuts against the sliding casing, one end of the sliding rod is provided with a supporting ring, the other end of the first elastic member abuts against the supporting ring, the conductive rod is inserted into the sliding rod, the conductive rod penetrates through the rear cover, the rear cover is fixed to the other end of the sliding casing, and shields the sliding rod, and the conductive rod contacts with the conductive member.
3. The electromagnetic switch with overload protection according to claim 2, wherein a first placement groove, a first sliding groove, and a second placement groove are provided in the slider case, the first sliding groove is respectively in conduction with the first placement groove and the second placement groove, the iron ring is housed in the first placement groove, the sliding bar is housed in the first sliding groove, the first elastic member is housed in the second placement groove, one end of the first elastic member abuts against a groove wall of the second placement groove, the support ring is aligned with the second placement groove, and the other end of the first elastic member abuts against the support ring.
4. The electromagnetic switch with overload protection as claimed in claim 3, wherein the groove wall of the second placement groove is circumferentially provided with a plurality of anti-slip threads.
5. The electromagnetic switch with overload protection as claimed in claim 2, wherein the sliding rod includes an iron rod and an insulating rod, the iron rod is fixedly connected to one end of the insulating rod and contacts with the iron ring, an insertion hole is formed in the insulating rod, and a portion of the conductive rod is inserted into the insertion hole.
6. The electromagnetic switch with overload protection as claimed in claim 2, wherein the conductive rod is provided with a first electrical connection site and a second electrical connection site, the first electrical connection site contacts with the conductive member, and the second electrical connection site is electrically connected with the first positive access site.
7. The electromagnetic switch with overload protection as claimed in claim 6, wherein the conductive member has a contact piece thereon, the contact piece being located below the first electrical connection site and contacting and making electrical connection with the first electrical connection site.
8. The electromagnetic electric switch with overload protection as claimed in claim 1, wherein the electromagnetic absorption device includes a second fixed housing and an electromagnet, the second fixed housing is provided with a second positive electrode connection position, a second positive electrode output position and a second negative electrode connection portion, the electromagnet is transversely and fixedly connected in the second fixed housing and faces the protection device, the electromagnet is provided with a positive electrode connection position and a negative electrode connection position, the positive electrode connection position is electrically connected with the second positive electrode connection position, the negative electrode connection position is electrically connected with the second negative electrode connection portion, the second positive electrode connection position is electrically connected with the second positive electrode output position, the second positive electrode connection position and the second negative electrode connection portion are respectively electrically connected with the power input end, and the second positive electrode output position and the second negative electrode connection portion are respectively electrically connected with the protection device.
9. The electromagnetic switch with overload protection as claimed in claim 8, wherein the electromagnet has an axial hole for receiving the connecting assembly.
10. The electromagnetic switch with overload protection as claimed in claim 1, wherein the connecting member has a pulling rod at one end, the pulling rod passes through the first fixed casing, the electromagnetic switch with overload protection further includes a push button, a second sliding slot is provided at one side of the protective casing, and the push button passes through the second sliding slot and is fixedly connected to one end of the pulling rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210750129.9A CN114823238B (en) | 2022-06-29 | 2022-06-29 | Electromagnetic switch with overload protection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210750129.9A CN114823238B (en) | 2022-06-29 | 2022-06-29 | Electromagnetic switch with overload protection |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114823238A CN114823238A (en) | 2022-07-29 |
| CN114823238B true CN114823238B (en) | 2022-11-04 |
Family
ID=82523436
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210750129.9A Active CN114823238B (en) | 2022-06-29 | 2022-06-29 | Electromagnetic switch with overload protection |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114823238B (en) |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10289634A (en) * | 1997-04-15 | 1998-10-27 | Tdk Corp | Magnet catch with connector integrated switch |
| JP3077781U (en) * | 2000-11-17 | 2001-05-29 | たか 山本 | Body protection cover |
| CN2775906Y (en) * | 2004-11-18 | 2006-04-26 | 陈基山 | Relay power supply overload protector |
| CN2783530Y (en) * | 2005-02-01 | 2006-05-24 | 苏州松宝电器有限公司 | Grounding fault breaker |
| DE102012201854A1 (en) * | 2012-02-08 | 2013-08-08 | Siemens Aktiengesellschaft | Emergency release for an electrical switching device and electrical switching device |
| CN109707734A (en) * | 2019-01-02 | 2019-05-03 | 江苏理工学院 | A kind of electromagnetic adsorption type protection bearing arrangement |
| CN111739762A (en) * | 2020-07-07 | 2020-10-02 | 付小丽 | Short-circuit protector |
| CN113002653A (en) * | 2021-04-26 | 2021-06-22 | 彼合彼方机器人(天津)有限公司 | Permanent magnetic adsorption wheel used for magnetic conduction wall surface and capable of realizing rapid magnetic unloading |
| CN113192774A (en) * | 2021-04-28 | 2021-07-30 | 深圳瑞能电气设备有限公司 | Alternating current double-electric switching device capable of providing overcurrent protection during external circuit short circuit |
| CN114050079A (en) * | 2022-01-13 | 2022-02-15 | 深圳市恒讯通电子有限公司 | Switching device with replaceable switch component |
| CN114446712A (en) * | 2022-04-08 | 2022-05-06 | 深圳市恒讯通电子有限公司 | Adjustable steady voltage auto-power-off relay |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2012181445A (en) * | 2011-03-02 | 2012-09-20 | Seiko Epson Corp | Electrical apparatus |
| CN104837327A (en) * | 2015-05-21 | 2015-08-12 | 小米科技有限责任公司 | Circuit protection structure and electronic device |
-
2022
- 2022-06-29 CN CN202210750129.9A patent/CN114823238B/en active Active
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10289634A (en) * | 1997-04-15 | 1998-10-27 | Tdk Corp | Magnet catch with connector integrated switch |
| JP3077781U (en) * | 2000-11-17 | 2001-05-29 | たか 山本 | Body protection cover |
| CN2775906Y (en) * | 2004-11-18 | 2006-04-26 | 陈基山 | Relay power supply overload protector |
| CN2783530Y (en) * | 2005-02-01 | 2006-05-24 | 苏州松宝电器有限公司 | Grounding fault breaker |
| DE102012201854A1 (en) * | 2012-02-08 | 2013-08-08 | Siemens Aktiengesellschaft | Emergency release for an electrical switching device and electrical switching device |
| CN109707734A (en) * | 2019-01-02 | 2019-05-03 | 江苏理工学院 | A kind of electromagnetic adsorption type protection bearing arrangement |
| CN111739762A (en) * | 2020-07-07 | 2020-10-02 | 付小丽 | Short-circuit protector |
| CN113002653A (en) * | 2021-04-26 | 2021-06-22 | 彼合彼方机器人(天津)有限公司 | Permanent magnetic adsorption wheel used for magnetic conduction wall surface and capable of realizing rapid magnetic unloading |
| CN113192774A (en) * | 2021-04-28 | 2021-07-30 | 深圳瑞能电气设备有限公司 | Alternating current double-electric switching device capable of providing overcurrent protection during external circuit short circuit |
| CN114050079A (en) * | 2022-01-13 | 2022-02-15 | 深圳市恒讯通电子有限公司 | Switching device with replaceable switch component |
| CN114446712A (en) * | 2022-04-08 | 2022-05-06 | 深圳市恒讯通电子有限公司 | Adjustable steady voltage auto-power-off relay |
Also Published As
| Publication number | Publication date |
|---|---|
| CN114823238A (en) | 2022-07-29 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| TWI235516B (en) | Power supply unit for electronic devices | |
| CN110600948B (en) | Circuit safety power-off protection control structure | |
| DE60130241D1 (en) | SEPARATING DEVICE WITH FUSE | |
| US5701244A (en) | Uninterruptible power supply | |
| US5827619A (en) | Battery holder | |
| US6176712B1 (en) | Safe connector | |
| US8878091B2 (en) | Switch device and connector | |
| CN114823238B (en) | Electromagnetic switch with overload protection | |
| CN218351856U (en) | Socket assembly and electronic device | |
| CN115313105A (en) | Socket assembly and electronic device | |
| CN114446712B (en) | Adjustable steady voltage auto-power-off relay | |
| CN102403628A (en) | Safety socket | |
| CN115332889A (en) | Socket assembly and electronic device | |
| CN115395316A (en) | Socket assembly and electronic device | |
| CN210468195U (en) | Anti-loosening socket | |
| CN113644469A (en) | Two-core power connector applicable to large current | |
| CN115065010A (en) | Overload protection device based on electromagnetic force | |
| CN213753322U (en) | Magnetic safety socket | |
| CN114284116B (en) | Electric switch based on magnetism protection | |
| CN220341622U (en) | Safety socket | |
| CN207474843U (en) | A kind of leakage protecting plug | |
| CN110739194A (en) | Circuit breaker testing device and circuit breaker with same | |
| KR960006938Y1 (en) | Connecting device | |
| CN216750455U (en) | Magnetic connector | |
| CN215869871U (en) | Two-core power connector applicable to large current |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |