CN201197076Y - Relay power supply overload apparatus - Google Patents
Relay power supply overload apparatus Download PDFInfo
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- CN201197076Y CN201197076Y CNU2007203108526U CN200720310852U CN201197076Y CN 201197076 Y CN201197076 Y CN 201197076Y CN U2007203108526 U CNU2007203108526 U CN U2007203108526U CN 200720310852 U CN200720310852 U CN 200720310852U CN 201197076 Y CN201197076 Y CN 201197076Y
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Abstract
The utility model discloses an electric supply overload device for a relay. A load element is serially connected to a relay power supply input circuit or output circuit at an appropriate position. The load element device is combined with a relay housing at an appropriate position of a relay mechanism fixing seat or the relay housing, or is provided with a load element case to be combined with the relay housing. The load element device is connected to an indicator lamp through a circuit. A temperature sensor is arranged on the heating position of the load element, and is serially connected to an electromagnetic device coil of the relay. When an overload operation occurs, the output of the relay is disconnected. When a start button of the relay is pressed, a resistor circuit or an electric element circuit which is arranged on the relay electromagnetic device power supply reduces the voltage of the electromagnetic device. When a short circuit occurs in the power supply conducting wire and a heavy current is generated, the relay electromagnetic device power supply is instantly reduced to a power-down voltage of the electromagnetic device, the connection point of a conducting strip is separated from the output power supply, and the connection point of the conducting strip is quickly separated from a conduction output connection point within milliseconds by a spring. By applying the device, the manufacture cost can be saved, the conducting wire accidental discharge due to the short circuit of the power supply can be prevented, and the safety of using the product is ensured.
Description
Technical field
The utility model relates to a kind of electric supply installation, particularly a kind of relay power supply overload device.
Background technology
At present, the use of electric power is very general because supply of electric power has very big convenience, therefore, electric product all with electric power as power source, in the current society, the popularity of electric power has become one of important indicator of weighing national economic development.
But simultaneously easily in electricity consumption or power supply; also dangerous property; in order to reduce the danger in electricity consumption or the power supply; by fuse is set in circuit; in order to product and the safety guarantee current supply line in the protection power supply, make circuit under the situation that current supply line short circuit or undesired overload take place, fuse is automatic disconnection immediately; can prevent to cause contingency, as electric wire cock off, product burns.
The existing history for many years of the use of power supply fuse; according to the demand on using; common fuse type has types such as fusing type, no-fuse switch; all types of fuses in use respectively have pluses and minuses, and for example, fusing type fuse needs to change; though the no-fuse switch fuse need not be changed; but when protection, the time that fuse disconnects is longer, and all required fuse of present electricity consumption power supply all requires short opening time, the convenience and the high cost performance of use.
The utility model content
A kind of relay power supply overload device of the present utility model, input or output appropriate location serial connection load elements such as the moving sheet metal switch of heat or the macromolecular positive temperature coefficient thermosensitive resistor (PPTC of circuit at relay power, Polymeric Positive Temperature Coefficient Thermistor) homing position type fuse or fuse, the load elements device is at the relay mechanism holder, or relay1 case appropriate location, or the outer appropriate location of relay, or establish the combination of load elements box body and relay1 case in addition, be connected to indicator light or attention device by circuit, at load elements heating location means temperature sensor, with relay electromagnetic device coil tandem, when overload operation, disconnect the output of relay, this relay power supply overload device using method is: press relay and start button, relay circuit is connected, power supply exports the magnetic operation strip to through overheated moving sheet metal switch or PPTC homing position type fuse or fuse, conducting strip contact turn-on power, export by the conducting output contact, disconnect in the time of also can adopting constant current or overload operation automatically reset or hand by resetting, this relay electromagnetic device power supply is provided with resistance or electronic component circuit, be used to reduce electromagnetic device voltage, when being short-circuited, power lead produces big electric current, relay electromagnetic device power supply moment is reduced to the electromagnetic device off voltage, the conducting strip contact breaks away from out-put supply, the relay inner spring makes magnetic operation strip homing in millisecond, the conducting strip contact breaks away from the conducting output contact fast, when overload, load elements characteristic according to the utility model device, moving sheet metal switch of heat or PPTC homing position type fuse or fuse disconnect deenergization.With relay and load elements applied in any combination; can save manufacturing cost and reach quick deenergization in the millisecond; can be applicable to down in column circuits such as socket or electric switch or the electric equipment products switch; power lead or the during overload deenergization of protection during short circuit prevents to cause product to burn or the lead phenomenon of catching fire takes place.
It more than is a kind of relay power supply of the utility model overload device brief description, for being had the purpose of this utility model, feature and effect, those skilled in the art further understand and understanding, by following execution mode, and conjunction with figs., the utility model is illustrated in detail.
Description of drawings
Figure 1A is the relay power supply overload device structural representation of the utility model at relay input circuit serial connection load elements.
The relay power supply overload device structural representation that Figure 1B descends electromagnetic device voltage for the utility model relay with hand button starting relay magnetic operation strip magnetic conducting strip and quick deenergization.
Fig. 1 C is that the utility model relay is pushed the relay power supply overload device structural representation that the thermal switch contact disconnects the electromagnetic device power supply open with hand button starting relay magnetic operation strip magnetic conducting strip and with the hand button.
Fig. 1 D is three the key position schematic diagrames of the utility model based on Figure 1A.
Fig. 2 is the utility model relay power supply overload device repeat circuit and magnetic operation strip structural representation.
Fig. 3 A is load elements position view in the utility model relay power supply overload device.
Fig. 3 B is that the utility model electromagnetic device power supply is connected to power output end, by the structural representation of system's control relay power supply output.
Fig. 4 A is the structural representation of the utility model at load elements appropriate location unit temp sensing element.
Fig. 4 B is the structural representation that the crooked toggle switch of the moving sheet metal of the utility model heat breaks the electromagnetic device power supply.
Fig. 5 for load elements device in the utility model relay power supply overload device at the structural representation of relay socket appropriate location.
Fig. 6 is the structural representation of the miniature relay device load elements in the utility model relay power supply overload device.
Label declaration in the accompanying drawing:
99 relay1 cases, 101 conducting strip power supplys input contact
102 conducting strip contacts
103 load elements, 104 binding posts
105 electromagnetic device pedestals
106 springs, 107 electromagnetic devices
108 magnetic operation strip, 110 relay mechanism holders
111 disconnect (NC) output contact 112 conductings (ON) output contact
113 power supply input points, 114 electromagnetic device coils
115 electromagnetic device coils, 116 relays start button
117 relays disconnect button 118 indicator lights
119 temperature sensors, 120 sockets
121 load elements box body spacing blocks, 122 load elements box bodys
The moving metal switch conducting strip of 123 load elements box body loam cakes, 124 heat
125 load elements joint fasteners, 126 loam cakes
127 electromagnetic device fixed iron pieces, 128 power supply output contact operation strip conducting strips
129 hand buttons, 130 thermal switch screws
131 hand button screws
Embodiment
Relay power supply overload device of the present utility model, comprise relay mechanism body (relay) and load elements, relay is under instantaneous large-current or short-circuit conditions, voltage descends, electromagnetic device coil electromagnetism power deficiency, the magnetic operation strip is returned to initial position under spring action, thereby discharges the conducting strip contact, fast deenergization; When overload operation, then by for example hot characteristic deenergization that moves sheet metal switch or PPTC homing position type fuse or fuse or electric crystal or resistance wire of load elements.
A kind of relay power supply overload device, comprise relay1 case 99, conducting strip power supply input contact 101, conducting strip contact 102, load elements 103, electromagnetic device pedestal 105, spring 106, electromagnetic device 107, magnetic operation strip 108, relay mechanism holder 110, disconnect (NC) output contact 111, conducting (NO) output contact 112, power supply input point 113, electromagnetic device coil 114, electromagnetic device coil 115, relay starts button 116, relay disconnects button 117, indicator light 118, temperature sensor 119, socket 120, load elements box body spacing block 121, load elements box body 122, load elements box body loam cake 123, the moving metal switch conducting strip 124 of heat, load elements joint fastener 125, loam cake 126, electromagnetic device fixed iron piece 127 and power supply output contact operation strip conducting strip 128, wherein, load elements 103 can be the moving sheet metal switch of heat or PPTC homing position type fuse or fuse or electric crystal or resistance wire.In the utility model, relay and load elements are integrated, and can more effectively protect the current supply line insulating barrier of use, prevent that current supply line fire and the product that causes that cock off from burning, and improves the fail safe of power supply.
Figure 1A is the relay power supply overload device structural representation of the utility model at relay input circuit serial connection load elements.
Referring to Figure 1A, be provided with electromagnetic device 107 in the relay1 case 99, electromagnetic device 107 is fixed in electromagnetic device pedestal 105,105 of electromagnetic device pedestals are fixed in relay mechanism holder 110, electromagnetic device pedestal 105 is provided with magnetic operation strip 108 topmost, magnetic operation strip 108 is provided with returning spring 106, returning spring 106 connects magnetic operation strip 108 and electromagnetic device pedestal 105, conducting strip power supply input contact 101 and conducting strip contact 102 are fixed in magnetic operation strip 108 tops, conducting strip contact 102 tops are provided with power supply and disconnect (NC) output contact 111, power supply disconnects (NC) output contact 111 and is fixed in relay mechanism holder 110, conducting strip contact 102 belows are provided with conducting (ON) output contact 112, power turn-on (ON) output contact 112 is fixed in relay mechanism holder 110, relay mechanism holder 110 is provided with power supply input contact 113, power supply input contact 113 contacts with load elements 103 contacts, in the present embodiment, load elements 103 comprises the moving sheet metal switch of heat or PPTC homing position type fuse or fuse or electric crystal or resistance wire, load elements 103 is fixed on the relay mechanism holder 110, relay mechanism holder 110 is provided with electromagnetic device coil 114 power supply contacts and electromagnetic device coil 115 power supply contacts, electromagnetic device coil 115 power supply contacts are connected to load elements 103 output points, this relay power supply overload device is provided with relay and starts button 116 and relay disconnection button 117, relay disconnects button 117 and is connected with load elements 103 contacts by relay startup button 116, relay is kept conducting strip contact 102 and is contacted with power source ON output point 112, press relay disconnection button and press 117, then disconnect electromagnetic device coil 115 power supplys, when using this relay power supply overload device, at electromagnetic device coil 114 power supply contacts input power supply, press relay and start button 116, by power supply input point 113, load elements 103 makes electromagnetic device coil 115 power supply contact energized, electromagnetic device 107 produces magnetic at this moment, magnetic operation strip 108 is inhaled down, 102 contacts of conducting strip contact are at ON output contact 112, output voltage; Stop power supply as needing relay, then press relay and disconnect button 117, disconnect electromagnetic device coil 115 power supplys, by spring 106 magnetic operation strip 108 is bounce back into original position, conducting strip contact 102 breaks away from disconnection with ON output point 112, contact with NC output contact 111, deenergization is in electricity usage, magnetic operation strip 108 is inhaled down, 102 contacts of conducting strip contact produce big electric current at ON output contact 112 if output voltage is short-circuited, and load circuit voltage descends, electromagnetic device 107 undertensions then, the electromagnetic force that produces is not enough to hold magnetic operation strip 108, thereby discharges magnetic operation strip 108, conducting strip contact 102 and ON output contact 112 is disconnected in the time at millisecond, when overload, then by load elements 103 deenergizations, in the utility model, relay and load elements applied in any combination, reduced the volume of device, can the current supply line insulating barrier that use be provided safeguard, prevent that current supply line from cocking off and the fire and the product that cause burn, improve the fail safe of power supply.
The relay power supply overload device structural representation that Figure 1B descends electromagnetic device voltage for the utility model relay with hand button starting relay magnetic operation strip magnetic conducting strip and quick deenergization.
The utility model relay power supply overload device, in actual applications, for preventing the relay undertension, press and start button 116, electromagnetic device 107 is because there is distance magnetic operation strip and magnetic position, magnetic attraction deficiency when voltage reduces is so hand button 129 is depressed starting relay magnetic operation strip magnetic conduction.Disconnect electromagnetic device if desired, then press relay and disconnect button 117, above circuit button starts and button breaks and the hand button, depress and make conducting strip contact conducting electromagnetic device power supply, can select suitable button, for example one or more buttons cooperate to come control device, and for example the operating voltage of relay manufacturing factory production is 110 volts a electromagnetic device, the general design of its starting resistor is in the voltage drop of electromagnetic device more than 75%, promptly about 82.5 volts.Press start key, electromagnetic device energy magnetic relay magnetic operation strip 108, make the output of conducting strip contact 102 turn-on powers, if voltage drop is more than 50% behind electromagnetic device 107 magnetic, can keep normal magnetic, if voltage drop is below 50%, 107 of electromagnetic devices can discharge conducting strip contact 102 because of magnetic is not enough.The utility model focuses on, and for example former setting voltage is 110 volts, calculates with 100%.The utility model is applied between relay electromagnetic device 75% energy starting resistor and 50% release voltage, promptly be operated in the voltage range of starting resistor and release voltage, if supply voltage is reduced to 100 volts, electromagnetic device voltage is reduced to 70 volts, utilize the hand button, can make the electromagnetic device magnetic still can keep relay, electromagnetic device 107 magnetic magnetic operation strip 108 make conducting strip contact 102 conducting out-put supplies.If relay electromagnetic device 107 magnetic magnetic operation strip make conducting strip contact 102 conducting out-put supplies, during the lead short circuit, can shorten voltage and reduce to time of 50% by 75%, electromagnetic device is discharged immediately, disconnect out-put supply.Use the utility model, can shorten for 30% opening time, can prevent effectively that electric wire from catching fire.And general voltage source lead short circuit, voltage must be reduced within 50% by 100%, the deenergization time has more 30%, the breaking out of fire thereby the generation power cable catches fire, and use within this voltage 75% to 50%, use in this voltage drop scope at permanent fixing element that uses such as relay electromagnetic devices 107 such as socket, electric equipment products, can save power consumption.Above-mentioned relay electromagnetic device voltage only in above-mentioned percentage range and and nisi percentage, each production firm can be according to actual conditions assigned voltage scope, application of the present utility model also can be selected according to actual conditions, for example, decides according to relay electromagnetic device 107 performances.So the utility model proposes at this; all relay electromagnetic device 107 voltages are starting the voltage that begins when button 116 electromagnetic devices 107 magnetic magnetic operation strip make conducting strip contact 102 out-put supplies; voltage when electromagnetic device discharges the magnetic operation strip and makes conducting strip contact 102 deenergizations; within this voltage range; disconnect release magnetic operation strip 108 voltages by reduction electromagnetic device startup magnetic operation strip 108 voltages or raising electromagnetic device 107 and all can be considered the concrete design application of the utility model; all belonging to the utility model claim protection range, is not between the fixing percentage 75% to 50%.Further, if this relay electromagnetic device power supply is provided with former specification, can reduce electromagnetic device voltage by resistance or electronic building brick circuit serial connection.Relay can certainly be used specification voltage at present, the magnetic operation strip of 110 volts of voltage starting relay electromagnetic devices for example, the magnetic operation strip 108 of 60 volts of voltage release relay electromagnetic devices, cooperate the utility model to use, change electromagnetic device 107 starting relay electromagnetic device voltages at 110 volts, relay electromagnetic device release voltage is 90 volts; Or starting relay electromagnetic device voltage is at 90 volts, and relay electromagnetic device release voltage is 60 volts.So produce big electric current when power lead is short-circuited; relay electromagnetic device power supply moment is reduced to electromagnetic device 107 and discharges off voltages; the magnetic operation strip makes the conducting strip contact break away from out-put supply; reach a millisecond quick deenergization; be applied to down column circuits such as socket or electric switch or electric equipment products switch; protection power lead short circuit or overburden deenergization; prevent to cause product to burn or security incident that lead catches fire; can establish hand switch Switching power voltage in addition; for example 110V switches to 220V; the relay electromagnetic device reduces electromagnetic device voltage by resistance or electronic building brick circuit serial connection.
Fig. 1 C is that the utility model relay is pushed the relay power supply overload device structural representation that the thermal switch contact disconnects the electromagnetic device power supply open with hand button starting relay magnetic operation strip magnetic conducting strip and with the hand button.Fig. 1 D is three the key position schematic diagrames of the utility model based on Figure 1A.Please refer to Fig. 1 C and Fig. 1 D.
The utility model relay power supply overload device, in actual applications, for preventing the relay undertension, press and start button 116, electromagnetic device 107 is because there is distance magnetic operation strip and magnetic position, magnetic attraction deficiency when voltage reduces is so hand button 129 is depressed starting relay magnetic operation strip magnetic conduction.Disconnect electromagnetic device if desired, then hand button 129 is broken off with the fingers and thumb to the thermal switch direction, push thermal switch 103 contacts open, disconnect electromagnetic device 107 power supplys.Because of the general design of electromagnetic device operating voltage can also be kept normally at 50 percent o'clock magnetic of voltage drop, or when fixing use for a long time, design electromagnetic device 107 uses in its voltage drop scope, can save power consumption, and the hand button is fixing by shell fragment and hand button screw 131, thermal switch is fixed on pedestal 110 by thermal switch screw 130, and pedestal 110 is fixed in electromagnetic device pedestal 105 with electromagnetic device 107, this device makes power supply input point 113 be connected to operation strip conducting strip contact 102, the below is provided with and connects conducting strip contact and thermal switch contact so that conducting, and conducting (ON) output contact 112 is exported by thermal switch screw 130 positions.When using overload, the crooked contact that breaks away from of thermal switch disconnects electromagnetic device coil power 115, by spring 106 relay magnetic operation strip 108 is withdrawn into original position.Another utmost point electromagnetic device coil 114 of electromagnetic device connects another utmost point power supply, the thermal switch contact can install in relay power input the place ahead serial connection or relay conducting strip contact rear serial connection, also can be with hot moving plate make and break contact device in other position, and this thermal switch contact precalculated position device conductive switch contact, push the conductive switch contact open, the conducting strip contact disconnects and breaks away from power supply.
As reducing electromagnetic device voltage in the magnetic scope, when the lead short circuit, its relay magnetic operation strip makes the quicker disengaging power supply of conducting strip contact.
In the practical application, the relay electromagnetic device can also be provided with the startup of circuit button and the hand button makes conducting strip contact conducting electromagnetic device power supply, and disconnecting then, applications keys disconnects.
Fig. 2 is the utility model relay power supply overload device repeat circuit and magnetic operation strip structural representation.
Referring to Fig. 2, device has load elements 103 and magnetic operation strip 108 on relay mechanism holder 110.
Fig. 3 A is load elements position view in the utility model relay power supply overload device.
Fig. 3 B is that the utility model electromagnetic device power supply is connected to power output end, by the structural representation of system's control relay power supply output.
Referring to Fig. 3 A and Fig. 3 B, in relay mechanism holder 110 or relay in appropriate location or relay1 case 99 or the load elements box body 122, be provided with load elements box body spacing block 121, be used to isolate the thermal source that load elements 103 produces, in addition, in order to prevent that dust from entering, be provided with load elements box body loam cake 123, make up with relay1 case 99, in the practical application, load elements 103 also can not established load elements box body 122 in addition, direct and relay1 case 99 is set to one, be connected with relay by circuit, and, load elements also can install indicator light 118 or attention device, when load elements disconnection or conducting, bright or the attention device of indicator light 118 sends caution sound, electromagnetic device coil 114 and 115 is directly started by system's control or disconnects, electromagnetic device coil 115 also can be connected to ON output contact 112, start with disconnection and control by pressing key control or system, and load elements 103 outputs link to each other with conducting strip contact 102 inputs, when overload operation, then disconnect the power supply of electromagnetic device coil 115 by load elements 103, can effectively reduce the volume of relay, the current supply line insulating barrier that uses is provided safeguard, prevent that current supply line from cocking off and the fire and the product that cause burn phenomenon, improve the fail safe of power supply.
Fig. 4 A is the structural representation of the utility model at load elements appropriate location unit temp sensing element.
Fig. 4 B is the structural representation that the crooked toggle switch of the moving sheet metal of the utility model heat breaks the electromagnetic device power supply.
Referring to Fig. 4 A and Fig. 4 B, temperature sensor 119 devices are on the moving sheet metal switch heat generating spot of the heat of load elements 103, when overload operation, load elements 103 heatings, temperature rises, after temperature sensor 119 reaches the temperature of setting, disconnect relay electromagnetic device coil, relay conducting strip contact breaks away from the power supply output contact.In the practical application, temperature sensor 119 can install on moving sheet metal switch 103 heat generating spots of heat, also can be on the moving sheet metal 103 of heat, not establish the output of connection point power input serial connection, promptly do not establish contact and power series, temperature sensor 119 installs at moving sheet metal 103 heat generating spots of heat or the moving sheet metal 103 bowing under load toggle switches disconnection of heat electromagnetic device power supply in as Fig. 4 B, disconnect relay electromagnetic device coil after reaching design temperature, the relay operation strip breaks away from the power supply output contact, can also be electric current to be set adjust knob in the middle of toggle switch, adjust according to load current.
Fig. 5 for load elements device in the utility model relay power supply overload device at the structural representation of relay socket appropriate location.
Fig. 6 is the structural representation of the miniature relay device load elements in the utility model relay power supply overload device.
Referring to Fig. 6, load elements 103 is arranged in the last square box of relay1 case 99, different with Fig. 1 is, do not need to use former power pins of establishing in the relay, electromagnetic device fixed iron piece 127 is fixed in the electromagnetic device pedestal, power supply output contact operation strip conducting strip 128 stretches out relay1 case 99, conduct electricity by load elements joint fastener 125 with load elements 103, load elements 103 devices up, export the moving metal switch conducting strip 124 of heat to, the moving metal switch conducting strip 124 of heat is installed on the former input power pins of relay position, and when overload operation, load elements 103 up flicks output contact, disconnect power supply, equally, enter, also can be provided with load elements box body loam cake 126 for preventing dust.
The performance that the utility model disconnects when improving relay protection; temperature sensor 119 is connected in series with electromagnetic device coil 115; device is at the heat generating spot of load elements 103; when load elements 103 electric currents excessive; heating arrives temperature sensor 119 numerical value of setting, electromagnetic device coil 115 deenergizations, and conducting strip contact 102 breaks away from ON output contact 112; perhaps, indicator light is bright.Indicator light also can be attention device, is used to send caution sound.
In the practical application; the moving sheet metal switch of the heat of load elements overload protection automatically reset formula and hand-reset formula; and fuse or PPTC homing position type fuse kind are also more various; therefore in this explanation; every components and parts that can be applied in the utility model relay power supply protection circuit all belong to the scope of the utility model claim.
Load elements can install inside and outside relay mechanism holder or shell, with relay assembly be the load elements relay, or the load elements device with the load elements box body of relay1 case combination, or load elements and relay1 case appropriate location establish box body combination, connects the control load element by lead.
Load elements also can be established a box body and relay1 case combination or load elements and relay1 case in addition and establish box body combination, connects the control load element by lead.
In the practical application, the moving sheet metal of heat also can not established the moving sheet metal output of connection point power input serial connection heat, the moving sheet metal bending of heat when overload operation, but toggle switch disconnects the electromagnetic device coil or disconnects relay output.
On the moving sheet metal of heat, also can not establish the output of connection point power input serial connection, the moving sheet metal switch free bend of heat when overload operation, the temperature sensor device is at the moving sheet metal switch heat generating spot of heat, when overload, the moving sheet metal heating of heat reaches the temperature of setting, the temperature sensor sensing disconnects or conducting electromagnetic device coil or control circuit.Also can be provided with button in the appropriate location on relay1 case or outside the relay, heat breaks away from hand-reset when moving the overload of sheet metal switch, and button is pressed the moving sheet metal switch of after heat and recovered conducting, or hot moving sheet metal switch cooling, recovers conducting automatically and uses.
In the practical application, the utility model relay power supply overload device can be applicable in various socket or automatic control relay or the electric equipment products switch, and deenergization when being used for protecting power lead or overload when short circuit prevents to cause product to burn or lead catches fire.
Electromagnetic device in the relay also can be realized according to the corresponding circuit of user's Demand Design with disconnection by power supply control adhesive.
Relay power supply overload device of the present utility model, be meant the load-relay that is applied in automatic control relay and all little shape relays and load elements combination especially, relay can have different combined methods according to different needs with the load elements combination, does not repeat them here.
In the practical application, relay power supply overload device of the present utility model, how its load elements is connected and control relay conducting and shutoff with relay, can come the circuit of design according to user's demand.
Preferably, the utility model relay power supply overload device is provided with the hand button, can depress the startup of hand button and push the thermal switch contact open, or establish switch disconnection electromagnetic device power supply in addition, and the magnetic operation strip breaks away from power supply.
Preferably, the utility model relay power supply overload device is established the hand button, can start and disconnection electromagnetic device power supply.
Preferably; relay electromagnetic device voltage is starting button; electromagnetic device magnetic magnetic operation strip; conducting strip contact out-put supply is begun; between electromagnetic device release magnetic operation strip voltage range; by reducing the voltage of electromagnetic device magnetic magnetic operation strip, make conducting strip contact out-put supply all belong to the utility model claim protection range, be not between above-mentioned fixing percentage 75% to 50% voltage range.
Preferably, if this relay electromagnetic device power supply is provided with former specification, can pass through resistance or the reduction of electronic component circuit or rising electromagnetic device voltage in the magnetic scope of setting, when power lead is short-circuited the big electric current of generation, relay electromagnetic device power supply moment is reduced to the electromagnetic device off voltage, discharge the magnetic operation strip, make the conducting strip contact break away from out-put supply.
Preferably, also can be with the present specification voltage that uses of relay, for example, with 110 volts of voltages using at present magnetic operation strip as the starting relay electromagnetic device, 60 volts of voltages are release relay electromagnetic device magnetic operation strip, cooperate the utility model to use, change the relay electromagnetic device into and start the magnetic operation strip the electricity is at 110 volts of pressure special, it is 90 volts that electromagnetic device discharges magnetic operation strip voltage.Perhaps, dwindle electromagnetic device startup and off voltage or starting relay electromagnetic device voltage is 90 volts, relay electromagnetic device release voltage is 60 volts.Therefore; when being short-circuited, power lead produces big electric current; relay electromagnetic device power supply moment is reduced to electromagnetic device and discharges off voltage; discharge the magnetic operation strip; make the conducting strip contact break away from out-put supply, reach the quick deenergization of Millisecond, can be applied to down column circuits: as socket or electric switch or electric equipment products switch; be used to protect the power lead short circuit or when overload deenergization, prevent to cause product to burn or security incident that lead catches fire.
Relay power supply overload device of the present utility model, input or output circuit appropriate location serial connection load elements at relay power, device is the appropriate location on relay mechanism holder or relay1 case or outside the relay, connect the control load element by lead, load elements can be the moving sheet metal of heat or PPTC homing position type fuse or fuse or electric crystal or resistance wire etc.
In the practical application, relay starts with the control circuit that disconnects comparatively simple, and control method is also more, does not repeat them here.
By the above detailed description of preferred embodiments, be to wish to know more to describe feature of the present utility model and spirit, and be not to come category of the present utility model is limited with above-mentioned disclosed preferred embodiment.On the contrary, its objective is that hope can contain in the category of the claim that is arranged in the desire application of the utility model institute of various changes and tool equality.
Claims (12)
1. a relay power supply overload device comprises the relay mechanism body, it is characterized in that:
The appropriate location that inputs or outputs circuit at relay mechanism body power supply is connected in series load elements, and the load elements device is the appropriate location on relay mechanism holder or relay1 case or outside the relay;
Be provided with electromagnetic device in the relay1 case, electromagnetic device one utmost point electromagnetic device coil disconnects button by one and a startup connects power supply output or input circuit by keyed jointing load elements, another utmost point electromagnetic device coil;
Also be provided with the magnetic operation strip in the relay1 case; The magnetic operation strip is by the electromagnetic device magnetic, and its conducting strip contact contacts with the conducting output contact; And the magnetic operation strip is provided with and makes the conducting strip contact break away from the returning spring of conducting output contact.
2. device as claimed in claim 1 is characterized in that, on the described relay1 case or the outer appropriate location of relay device has the electronic switch button that starts or disconnect relay power; Described load elements is the moving sheet metal switch of heat, device is provided with button in the appropriate location on relay1 case or outside the relay, and the moving sheet metal switch of heat breaks away from hand-reset when overloading, and button is pressed the moving sheet metal switch of after heat and recovered conducting, or the moving sheet metal switch cooling of heat, recover conducting automatically and use.
3. device as claimed in claim 1, it is characterized in that, this device further has the temperature sensor that is elevated to design temperature disconnection electromagnetic device coil power in the load elements temperature, the described temperature sensor and a utmost point or another utmost point electromagnetic device coil tandem at the appropriate location device of load elements heating.
4. device as claimed in claim 1, it is characterized in that, this device further comprises socket, at least one utmost point of load elements power supply inputs or outputs with relay power in the socket appropriate location and is connected in series, in normal condition, the load elements temperature is normal, and during overload, load elements disconnects the electromagnetic device coil power or disconnects relay power.
5. device as claimed in claim 2 is characterized in that, the moving sheet metal serial connection of described heat relay inputs or outputs power supply; Or the moving sheet metal of described heat is not established the output of connection point power input serial connection.
6. a relay power supply overload device as claimed in claim 1 is characterized in that, is provided with the hand button, presses by the hand button, and the conducting strip contact of magnetic operation strip contacts with the conducting output contact; Or at precalculated position device conductive switch contact, push open by the conductive switch contact, the conducting strip contact of magnetic operation strip breaks away from power supply.
7. the device of stating as claim 1 or 6 is characterized in that, relay electromagnetic device power series reduces in the magnetic scope of setting or the resistance or the electronic component circuit of boosted voltage.
8. device as claimed in claim 6, it is characterized in that, the relay electromagnetic device is provided with the startup of circuit button and button breaks and the hand button, or described circuit button starts and button breaks and the hand button cooperates control device, depress and make conducting strip contact conducting electromagnetic device power supply, button disconnects and then disconnects the electromagnetic device power supply.
9. device as claimed in claim 6 is characterized in that, establishes the hand button and starts and disconnection electromagnetic device power supply.
10. relay as claimed in claim 1 power supply overload device, comprise relay and load elements, it is characterized in that, the load elements device is inside and outside relay mechanism holder or shell, with described relay assembly be the load elements relay, or the load elements device with the load elements box body of relay1 case combination, or load elements and relay1 case appropriate location establish box body combination, connects the control load element or be connected to the outer socket control load element of box body by lead by lead.
11. device as claimed in claim 10, it is characterized in that, described load elements is established a box body and relay1 case combination or load elements and relay1 case in addition and is established box body combination, connects the control load element or is connected to the outer socket control load element of box body by lead by lead.
12. as claim 1 or 3 or 6 described devices, it is characterized in that, described load elements device inside and outside relay1 case or with the load elements box body of relay1 case combination, connect the control load element or be connected to the outer socket control load element of box body by lead, relay interior or shell appropriate location device indicator light or attention device by lead.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007203108526U CN201197076Y (en) | 2007-10-16 | 2007-12-24 | Relay power supply overload apparatus |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200720183414 | 2007-10-16 | ||
| CN200720183414.8 | 2007-10-16 | ||
| CNU2007203108526U CN201197076Y (en) | 2007-10-16 | 2007-12-24 | Relay power supply overload apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201197076Y true CN201197076Y (en) | 2009-02-18 |
Family
ID=40416705
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007203108526U Expired - Fee Related CN201197076Y (en) | 2007-10-16 | 2007-12-24 | Relay power supply overload apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201197076Y (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102623955A (en) * | 2012-04-12 | 2012-08-01 | 浙江康泰电气有限公司 | Temperature protection device for socket |
| CN102856877A (en) * | 2011-06-28 | 2013-01-02 | 苏州市万泰真空炉研究所有限公司 | Power-saving overload start and interruption relay |
| CN102856132A (en) * | 2011-06-28 | 2013-01-02 | 苏州市万泰真空炉研究所有限公司 | Thermal relay device |
| CN104124671A (en) * | 2014-07-24 | 2014-10-29 | 南京国电南自软件工程有限公司 | Speed-up loop of exit relay of intelligent operation box |
| CN107481894A (en) * | 2017-08-17 | 2017-12-15 | 海盐众信电子有限公司 | A kind of phase-selecting switch and its control method |
| CN109872512A (en) * | 2019-04-08 | 2019-06-11 | 李振玲 | A kind of substation bus bar overstepping alarm system |
| CN110517936A (en) * | 2019-09-06 | 2019-11-29 | 河南普润仪器设备有限公司 | A kind of quick response formula AC fuse |
| CN111403195A (en) * | 2020-03-17 | 2020-07-10 | 石建华 | Automatic change on-off switch |
| 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 |
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2007
- 2007-12-24 CN CNU2007203108526U patent/CN201197076Y/en not_active Expired - Fee Related
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102856877A (en) * | 2011-06-28 | 2013-01-02 | 苏州市万泰真空炉研究所有限公司 | Power-saving overload start and interruption relay |
| CN102856132A (en) * | 2011-06-28 | 2013-01-02 | 苏州市万泰真空炉研究所有限公司 | Thermal relay device |
| CN102623955A (en) * | 2012-04-12 | 2012-08-01 | 浙江康泰电气有限公司 | Temperature protection device for socket |
| CN104124671A (en) * | 2014-07-24 | 2014-10-29 | 南京国电南自软件工程有限公司 | Speed-up loop of exit relay of intelligent operation box |
| CN107481894A (en) * | 2017-08-17 | 2017-12-15 | 海盐众信电子有限公司 | A kind of phase-selecting switch and its control method |
| CN109872512A (en) * | 2019-04-08 | 2019-06-11 | 李振玲 | A kind of substation bus bar overstepping alarm system |
| CN110517936A (en) * | 2019-09-06 | 2019-11-29 | 河南普润仪器设备有限公司 | A kind of quick response formula AC fuse |
| CN110517936B (en) * | 2019-09-06 | 2021-07-02 | 绍兴阔源机械科技有限公司 | Quick response type alternating current fuse |
| CN111403195A (en) * | 2020-03-17 | 2020-07-10 | 石建华 | Automatic change on-off switch |
| 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 |
| CN114446712B (en) * | 2022-04-08 | 2022-07-22 | 深圳市恒讯通电子有限公司 | Adjustable steady voltage auto-power-off relay |
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