CN202309581U - Motor control circuit and control device - Google Patents
Motor control circuit and control device Download PDFInfo
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- CN202309581U CN202309581U CN2011204548750U CN201120454875U CN202309581U CN 202309581 U CN202309581 U CN 202309581U CN 2011204548750 U CN2011204548750 U CN 2011204548750U CN 201120454875 U CN201120454875 U CN 201120454875U CN 202309581 U CN202309581 U CN 202309581U
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Abstract
The embodiment of the utility model discloses a motor control circuit and control device. The embodiment of the utility model comprises a main control line 11, a temperature control line 12, a forward rotation line 13, a reverse rotation line 14, a temperature fuse 15 and a first temperature control switch 16, wherein the connection point of the main control line 11 and the temperature control line 12 is a first node; the connection point of the main control line 11 and the forward rotation line 13 and/or reverse rotation line 14 is a second node; the first temperature control switch 16 is connected in series in a circuit between the input end of the main control line 11 and the first node; and the temperature fuse 15 is connected in series in a circuit between the first node and the second node. The embodiment can ensure that the motor temperature overheating protection function is effective during the reverse connection or short-circuiting of the main control line 11 and the temperature control line 12, and can ensure the safe operation of the circuit.
Description
Technical field
The utility model relates to the control circuit field, relates in particular to a kind of motor control circuit and control device.
Background technology
Motor is a kind of mechanical power source, can be used to realize the conversion of electric energy to mechanical energy, all is used widely in each side such as industrial and agricultural production, communications and transportation, national defence, commerical appliances, household electrical appliance and medical appliance equipments.Cause motor to burn when preventing that circuit from breaking down, in motor control circuit, generally be connected with the temperature overheating protective device, this kind temperature overheating protective device can be Thermal Cutoffs and/or temperature detect switch (TDS).
For example, a kind of motor control circuit of prior art is as shown in Figure 1, a kind of motor control circuit; Mainly comprise master control line 01, temperature control line 02, just change line 03, reversed line 04, Thermal Cutoffs 05, temperature detect switch (TDS) 06, coil main winding M and a coil pair winding A; Wherein, temperature control line 02 is used to receive the cue of master control line 01 and cue is transferred to user's control end, can be when circuit is overheated; Before Thermal Cutoffs fusing, point out the subscriber line circuit fault; Make the user break off motor immediately, wherein, master control line 01, just change line 03 and reversed line 04 and can be connected with the power supply of motor power supply.As shown in Figure 1; Be in series with a Thermal Cutoffs 05 and a temperature detect switch (TDS) 06 in the circuit between the tie point of the input of master control line 01 and master control line 01 and temperature control line 02; At the tie point of master control line 01 and temperature control line 02 with just changeing in the circuit between the output of line 03 and be in series with coil main winding M, be in series with coil pair winding A in the circuit between the output of the tie point of master control line 01 and temperature control line 02 and reversed line 04.For example, motor power supply one termination is gone into the output of master control line 01, and the motor power supply other end inserts when just changeing the output of line 03; Motor will just change, and in the course of the work, circuit may be because of use or mechanical disorder make motor temperature constantly raise for a long time; Cause the situation of burning motor; Even causing fire, the Thermal Cutoffs 05 in the circuit can make motor quit work with the protection motor when circuit breaks down with temperature detect switch (TDS) 06 at this moment, guarantees that circuit safety moves.
In research and practice process to prior art; The inventor of the utility model finds; In the production in enormous quantities of motor or in the production in enormous quantities of finished machine, very likely because of drawing design mistake or producers' error with master control line 01 and 02 reversal connection of temperature control line, promptly motor power supply one end connects the output of temperature control line 02 during motor operations; The motor power supply other end connects the output that is just changeing line 03 or reversed line; Owing to be not connected with any temperature overheating protective device on the temperature control line 02, when circuit breaks down, can directly burn motor, even cause fire; And maybe be because operation lack of standardization causes master control line 01 and 02 short circuit of temperature control line, this moment, electric current can directly burn motor directly through the temperature control line 02 of any temperature overheating protective device is not arranged.Motor control circuit of the prior art is at master control line 01 during with 02 short circuit of temperature control line or reversal connection, can't protective circuit safety, and can directly burn motor, even cause fire, there is bigger potential safety hazard, and brings very big economic damage to the user.
The utility model content
The utility model embodiment provides a kind of motor control circuit and control device, and the temperature overheating defencive function of motor is effective when being used to guarantee circuit reversal connection or short circuit, can guarantee the circuit safety operation.
A kind of motor control circuit comprises: master control line 11, temperature control line 12, just change line 13, reversed line 14, Thermal Cutoffs 15 and first temperature detect switch (TDS) 16;
Wherein, be in series with first temperature detect switch (TDS) 16 that is used for coming according to variations in temperature control circuit conducting or disconnection in the circuit between the input of master control line 11 and first node, wherein, this first node is the tie point of master control line 11 and temperature control line 12;
Wherein, be in series with the Thermal Cutoffs 15 that is used for protective circuit in the circuit between first node and second node, wherein, this second node is master control line 11 and the tie point that just changes line 13 and/or reversed line 14.
A kind of controller for motor comprises any motor control circuit that the utility model embodiment provides.
Can find out that from above technical scheme the utility model embodiment has the following advantages:
The utility model comprises master control line 11, temperature control line 12, just changes line 13, reversed line 14, Thermal Cutoffs 15 and first temperature detect switch (TDS) 16; Wherein, Wherein, the tie point of master control line 11 and temperature control line 12 is first node, and master control line 11 is second node with the tie point that just changes line 13 and/or reversed line 14; Present embodiment is owing to be in series with first temperature detect switch (TDS) 16 that is used for coming according to variations in temperature control circuit conducting or disconnection in the input of master control line 11 and the circuit between first node; And be in series with the Thermal Cutoffs 15 that is used for protective circuit in the circuit between first node and second node, when master control line 11 and 12 reversal connections of temperature control line or short circuit, but first temperature detect switch (TDS) 16 and Thermal Cutoffs 15 equal protective circuits; Make motor can directly not burn; Can prevent to guarantee the safe operation of circuit because potential safety hazard and motor that circuit reversal connection or short circuit bring directly burn the economic loss of bringing, be a kind of safe and reliable control circuit.
Description of drawings
In order to be illustrated more clearly in the technical scheme of the utility model embodiment; The accompanying drawing of required use is done to introduce simply in will describing embodiment below; Obviously, the accompanying drawing in describing below only is some embodiment of the utility model, for those of ordinary skills; Under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the sketch map of motor control circuit in the prior art;
Fig. 2 is a sketch map of motor control circuit in the present embodiment;
Fig. 3 is another sketch map of motor control circuit in the present embodiment.
Embodiment
To combine the accompanying drawing among the utility model embodiment below, the technical scheme among the utility model embodiment is carried out clear, intactly description, obviously, described embodiment only is the utility model part embodiment, rather than whole embodiment.Based on the embodiment in the utility model, those of ordinary skills are not making the every other embodiment that is obtained under the creative work prerequisite, all belong to the scope of the utility model protection.
The utility model embodiment provides a kind of motor control circuit and control device, and motor can directly not burn in the time of can guaranteeing circuit reversal connection or short circuit.
Be described in detail through the technical scheme of specific embodiment below, see also Fig. 1 to Fig. 3 the utility model:
A kind of motor control circuit; Comprise: master control line 11, temperature control line 12, just change line 13, reversed line 14, Thermal Cutoffs 15 and first temperature detect switch (TDS) 16; Wherein, In the input of master control line 11 and the circuit between first node, be in series with first temperature detect switch (TDS) 16 that is used for coming according to variations in temperature control circuit conducting or disconnection, wherein, this first node is a master control line 11 and the tie point of temperature control line 12; And be in series with the Thermal Cutoffs 15 that is used for protective circuit in the circuit between first node and second node, wherein, this second node is master control line 11 and the tie point that just changes line 13 and/or reversed line 14.Concrete structure can be consulted Fig. 2.
Wherein, the input of master control line 11, just change the output of line 13 and the output of reversed line 14 and can be connected with the motor power supply, the output of temperature control line 12 then can be connected with user's control end.Wherein, the motor power supply can design according to the motor needs, and for example this motor power supply can be 36V, 48V, 100V, 120V or 220V etc.Wherein, for convenience, in the present embodiment motor power supply is called power supply.For example, when the output of temperature control line 12 is connected with user's control end, an end of power supply is connected with the input of master control line 11, and when the other end of power supply was connected with the output that just changes line 13, motor can just change; When the output of temperature control line 12 is connected with user's control end; One end of power supply is connected with the input of master control line 11; When the other end of power supply was connected with the output of reversed line 14, motor can reverse, and what need explanation is; Temperature control line 12 is used to receive the cue of master control line 11 and cue is transferred to user's control end, can before Thermal Cutoffs 15 fusing, fault be prompted to the user.
Wherein, For convenience; Tie point with master control line 11 and temperature control line 12 in the present embodiment is called first node, also master control line 11 and the tie point that is just changeing line 13 and/or reversed line 14 is called second node, and promptly this second node can be master control line 11 and the tie point that is just changeing line 13 and reversed line 14; Can be master control line 11 and the tie point that just changes line 13, also can be the tie point of master control line 11 and reversed line 14.When the output of temperature control line 12 is connected with user's control end, an end of power supply is connected with the input of master control line 11, and when the other end of power supply was connected with the output that just changes line 13, motor can just change.
Wherein, In the input of master control line 11 and the circuit between first node, be in series with temperature detect switch (TDS), for convenience, present embodiment is called first temperature detect switch (TDS) 16 with this temperature detect switch (TDS); This first temperature detect switch (TDS) 16 can come control circuit conducting or disconnection according to the variations in temperature of circuit; Concrete, this first temperature detect switch (TDS) 16 can be according to the variations in temperature of operational environment, in the inner physical deformation that takes place of switch; Make the temperature detect switch (TDS) 16 of winning can conducting or open circuit, the operation that maybe can be used for control appliance be to reach desirable temperature and energy-saving effect.Wherein, this first temperature detect switch (TDS) 16 possesses a break-off signal value, and it is relevant that this break-off signal value and motor normal working temperature and motor burn temperature.What need explanation is; On the input of master control line 11 and the circuit between first node, can be connected with one first temperature detect switch (TDS) 16; Also can connect a plurality of first temperature detect switch (TDS)s 16, preferred, connect the function that one first temperature detect switch (TDS) 16 can well be realized protective circuit; Can also practice thrift cost, the quantity of the first concrete temperature detect switch (TDS) 16 is not done qualification here.
Wherein, Be in series with the Thermal Cutoffs 15 that is used for protective circuit in the circuit between first node and second node; These Thermal Cutoffs 15 built-in sensible heat material or low melting point alloys of being made up of the temperature-sensitive particle are when circuit uses or during mechanical disorder, the temperature of motor can constantly raise because of long-time; Along with the rising of temperature may be burnt motor, even cause fire.If correctly be connected with Thermal Cutoffs 15 in the circuit, so, Thermal Cutoffs 15 will be when motor temperature be elevated to uniform temperature, self fuses and cuts off electric current, thereby play the effect of protective circuit safe operation.Wherein, this Thermal Cutoffs 15 possesses a fusing-off temperature value, and it is relevant that this fusing-off temperature value and motor normal working temperature and motor burn temperature.What need explanation is; On the circuit between first node and second node, can be connected a Thermal Cutoffs 15; Also can connect a plurality of Thermal Cutoffs 15, preferred, connect the function that a Thermal Cutoffs 15 can well be realized protective circuit; Can also practice thrift cost, the quantity of concrete Thermal Cutoffs 15 is not done qualification here.
What need explanation is that the Thermal Cutoffs 15 in the circuit between first node and second node also can replace with the temperature detect switch (TDS) of synthermal value, the same like this effect that can reach protective circuit; But use temperature detect switch (TDS) to replace Thermal Cutoffs 15, can make volume become big, and can increase cost; And compare Thermal Cutoffs; Temperature detect switch (TDS) lost efficacy more easily, thus preferred, be in series with Thermal Cutoffs 15 in the circuit between first node and second node.
Wherein, On the circuit between first node and second node, can also be connected with first temperature detect switch (TDS) 16 that is used for coming control circuit conducting or disconnection according to variations in temperature; Prevent this a kind of situation that the simultaneous temperature fuse 15 of master control line in the circuit 11 and 12 reversal connections of temperature control line also lost efficacy, though the probability of happening that the simultaneous temperature fuse 15 of master control line 11 and 12 reversal connections of temperature control line also lost efficacy is quite low.Concrete, the Thermal Cutoffs 15 of connecting in the circuit between first node and second node or the quantity of first temperature detect switch (TDS) 16 are not done qualification.
What need explanation is that the break-off signal value of this first temperature detect switch (TDS) 16 is lower than the fusing-off temperature value of Thermal Cutoffs 15.Like this; First temperature detect switch (TDS) 16 can be used as the ground floor protection of this circuit; Can before Thermal Cutoffs 15 self fuses, take measures to the fault of circuit, when first temperature detect switch (TDS) 16 did not in time move, Thermal Cutoffs 15 can be brought into play second layer protective action; Temperature in circuit is understood self fusing when being elevated to certain height, thereby plays the effect of protective circuit safe operation.For example, when the break-off signal value of first temperature detect switch (TDS) 16 was 95 ℃, the fusing-off temperature value of Thermal Cutoffs 15 can be 150 ℃.
So; When the output of temperature control line 12 is connected with user's control end; One end of power supply is connected with the input of master control line 11; When the other end of power supply was connected with the output that just changes line 13, motor can just change, the passing through the path and can be successively of electric current this moment: the input of master control line 11, first temperature detect switch (TDS) 16, first node, Thermal Cutoffs 15, second node and just changeing the output of line 13.In like manner; When the output of temperature control line 12 is connected with user's control end; One end of power supply is connected with the input of master control line 11; When the other end of power supply was connected with the output of reversed line 14, motor can reverse, the passing through the path and can be successively of electric current this moment: the output of the input of master control line 11, first temperature detect switch (TDS) 16, first node, Thermal Cutoffs 15, second node and reversed line 14.
What need explanation is; In the production in enormous quantities of motor; May because of drawing design mistake or producers' error with master control line 01 and 02 reversal connection of temperature control line; And whether factory or user can't qualified through conventional means detection motor finished product, can only lean on the temperature overheating protective device in the motor control circuit, and promptly first temperature detect switch (TDS) 16 is protected with 15 pairs of motors of Thermal Cutoffs.Under the situation of master control line 01 and 02 reversal connection of temperature control line, when motor just changes, the passing through the path and can be successively of electric current this moment: the input of temperature control line 12, first node, Thermal Cutoffs 15, second node and just changeing the output of line 13.Wherein, Thermal Cutoffs 15 still can be protected circuit under the situation of master control line 01 and 02 reversal connection of temperature control line, and when motor was overheated, Thermal Cutoffs 15 was understood self and fused with protective circuit.
What need explanation is; In the production in enormous quantities of motor; May because of drawing design mistake or producers' error with master control line 01 and 02 short circuit of temperature control line, or maybe be because operation lack of standardization cause master control line 01 with 02 short circuit of temperature control line the time, whether factory or user can't detect the motor finished product through conventional means qualified; Can only lean on the temperature overheating protective device in the motor control circuit, promptly first temperature detect switch (TDS) 16 is protected with 15 pairs of motors of Thermal Cutoffs.When master control line 01 during with 02 short circuit of temperature control line, the temperature in the circuit can constantly raise, the variations in temperature of first temperature detect switch (TDS) 16 in can acquisition cuicuit; And touch and make cue of master control line 11 output give temperature control line 12, make user's control end can know the unusual of circuit, circuit abnormality is in time handled; For example cut off the electricity supply, when in time fault not being handled, can also launch second layer temperature overheating protective device in the circuit; It is Thermal Cutoffs 15; Thermal Cutoffs 15 can the temperature in circuit be elevated to a timing self fusing, makes circuit break off the protective circuit safe operation.
By on can know; First node in the present embodiment is for being the tie point of master control line 11 with temperature control line 12; Second node is master control line 11 and the tie point that just changes line 13 and/or reversed line 14; Present embodiment is in series with first temperature detect switch (TDS) 16 that is used for coming according to variations in temperature control circuit conducting or disconnection in the input of master control line 11 and the circuit between first node; And be in series with the Thermal Cutoffs 15 that is used for protective circuit in the circuit between first node and second node, at master control line 11 during with 12 reversal connections of temperature control line or short circuit, but just protective circuit of one first temperature detect switch (TDS) of the access in circuit 16 and Thermal Cutoffs 15; Make motor can directly not burn; Can prevent can also practice thrift cost because potential safety hazard and motor that circuit reversal connection or short circuit bring directly burn the economic loss of bringing, be a kind of safe and reliable control circuit.
Except above-mentioned implementation, motor control circuit and control device can also realize in the following manner, specifically can be with reference to figure 3:
Concrete; In motor control circuit under the situation of master control line 11 and 12 reversal connections of temperature control line; Thermal Cutoffs 15 lost efficacy can damage motor equally, though the probability of happening that the simultaneous temperature fuse 15 of master control line 11 and 12 reversal connections of temperature control line also lost efficacy is quite low, and this a kind of situation that also lost efficacy for the simultaneous temperature fuse 15 that prevents master control line 11 and 12 reversal connections of temperature control line; In the present embodiment; Can also be in series with the temperature detect switch (TDS) that is used for coming according to variations in temperature control circuit conducting or disconnection in the circuit between first node and second node, for convenience, present embodiment is called second temperature detect switch (TDS) 17 with this temperature detect switch (TDS).Through specific embodiment present embodiment is described in detail below:
A kind of motor control circuit; Mainly comprise master control line 11, temperature control line 12, just change line 13, reversed line 14, Thermal Cutoffs 15, first temperature detect switch (TDS) 16 and second temperature detect switch (TDS) 17; Wherein, For convenience; In the present embodiment input of master control line 11 and the tie point of master control line 11 and temperature control line 12 are called first node; Also master control line 11 and the tie point that is just changeing line 13 and/or reversed line 14 are called second node, in the input of master control line 11 and the circuit between first node, are in series with first temperature detect switch (TDS) 16 that is used for coming control circuit conducting or disconnection, and are in series with in the circuit between first node and second node Thermal Cutoffs 15 that is used for protective circuit and second temperature detect switch (TDS) 17 that is used for coming control circuit conducting or disconnection according to variations in temperature according to variations in temperature.Specifically can consult Fig. 3.
Wherein, The input of master control line 11, the output that is just changeing output and the reversed line 14 of line 13 can be connected with the power supply of motor power supply, wherein, and for convenience; Below the power supply of motor power supply is called power supply, the output of temperature control line 12 then can be connected with user's control end.For example, when the output of temperature control line 12 is connected with user's control end, an end of power supply is connected with the input of master control line 11, and when the other end of power supply was connected with the output that just changes line 13, motor can just change.What need explanation is that temperature control line 12 is used to receive the cue of master control line 11 and cue is transferred to user's control end, can before Thermal Cutoffs 15 fusing, fault be prompted to the user.
Wherein, In the input of master control line 11 and the circuit between first node, be in series with temperature detect switch (TDS), for convenience, present embodiment is called first temperature detect switch (TDS) 16 with this temperature detect switch (TDS); Wherein, This first temperature detect switch (TDS) 16 is used for coming control circuit conducting or disconnection according to variations in temperature, and it possesses a break-off signal value, and it is relevant that this break-off signal value and motor normal working temperature and motor burn temperature.
Wherein, Be in series with in the circuit between first node and second node and be used for the Thermal Cutoffs 15 and second temperature detect switch (TDS) 17, wherein, this Thermal Cutoffs 15 can be when motor temperature be elevated to uniform temperature; Self fuse and cut off electric current, thereby play the effect of protective circuit safe operation; Wherein, this second temperature detect switch (TDS) 17 is used for coming control circuit conducting or disconnection, this second temperature detect switch (TDS) 17 can be used for preventing this a kind of situation that the simultaneous temperature fuse 15 of master control line 11 and 12 reversal connections of temperature control line also lost efficacy in the circuit according to variations in temperature.Wherein, this Thermal Cutoffs 15 possesses a fusing-off temperature value, and it is relevant that this fusing-off temperature value and motor normal working temperature and motor burn temperature; This second temperature detect switch (TDS) 17 possesses a break-off signal value, and it is relevant that this break-off signal value and motor normal working temperature and motor burn temperature.
What need explanation is that the break-off signal value of first temperature detect switch (TDS) 16 is lower than the break-off signal value of second temperature detect switch (TDS) 17.Wherein, the temperature of concrete temperature value and motor operate as normal is with to burn temperature relevant.If the break-off signal value of first temperature detect switch (TDS) 16 is higher than the break-off signal of second temperature detect switch (TDS) 17; Then can occur motor when overheated master control line 11 can not in time cue be transferred to temperature control line 12, can not in time let the user understand fault to take safeguard measure.When for example the break-off signal value of first temperature detect switch (TDS) 16 was 95 ℃, then the break-off signal value of second temperature detect switch (TDS) 17 can be 105 ℃.Meanwhile; Should guarantee as far as possible first temperature detect switch (TDS) 16 in circuit more near the motor position of high heat generating spot; Can be through in the motor production process; The temperature of the circuit in the motor operations process is tested the position of high heat generating spot of acquisition, then with first temperature detect switch (TDS) 16 when the assembling more near this position of high heat generating spot.
What need explanation is that the break-off signal value of this first temperature detect switch (TDS) 16 and second temperature detect switch (TDS) 17 all is lower than the fusing-off temperature value of Thermal Cutoffs 15.For example, the break-off signal value of first temperature detect switch (TDS) 16 is 95 ℃, and when the break-off signal value of second temperature detect switch (TDS) was 105 ℃, the fusing-off temperature value of Thermal Cutoffs 15 can be 150 ℃.Wherein, the temperature of concrete temperature value and motor operate as normal is with to burn temperature relevant.
So; When the output of temperature control line 12 is connected with user's control end; One end of power supply is connected with the input of master control line 11; When the other end of power supply was connected with the output that just changes line 13, motor can just change, the passing through the path and can be successively of electric current this moment: the input of master control line 11, first temperature detect switch (TDS) 16, first node, Thermal Cutoffs 15, second temperature detect switch (TDS) 17, second node and just changeing the output of line 13.Wherein, The sequencing of the Thermal Cutoffs 15 and second temperature detect switch (TDS) 17 can be turned; The sequencing of the Thermal Cutoffs 15 and second temperature detect switch (TDS) 17 can not cause restriction to the implementation result of present embodiment, i.e. the passing through the path and can be successively of electric current: the input of master control line 11, first temperature detect switch (TDS) 16, first node, second temperature detect switch (TDS) 17, Thermal Cutoffs 15, second node and just changeing the output of line 13.
What need explanation is, Thermal Cutoffs 15 and second temperature detect switch (TDS) 17 still can be protected circuit under the situation of master control line 11 and 12 reversal connections of temperature control line, and when motor was overheated, Thermal Cutoffs 15 was understood self and fused with protective circuit.
What need explanation is that motor temperature when working long hours back or abnormal work can change, when master control line 11 and 12 short circuits of temperature control line; Temperature in the circuit can change, and first temperature detect switch (TDS) 16 in the circuit can perception should change, and touches and make cue of master control line 11 outputs give temperature control line 12; Make user's control end can know the unusual of circuit, circuit abnormality is in time handled, when in time handling; Can also launch second layer temperature overheating protective device in the circuit, i.e. the Thermal Cutoffs 15 and second temperature detect switch (TDS) 17 are when the temperature in the circuit raises and reaches the break-off signal of second temperature detect switch (TDS); Second temperature detect switch (TDS) meeting open circuit; Circuit is protected, and Thermal Cutoffs 15 can, circuit self fuse the protective circuit safe operation when being elevated to uniform temperature or reaching predetermined value.
The practical implementation of motor control circuit can be consulted front embodiment, repeats no more here.
Wherein, a kind of controller for motor comprises any motor control circuit that front embodiment provides, and specifically can consult front embodiment, repeats no more here.
By on can know; Present embodiment is in series with first temperature detect switch (TDS) 16 that is used for coming according to variations in temperature control circuit conducting or disconnection in the input of master control line 11 and the circuit between first node; And be in series with Thermal Cutoffs 15 that is used for protective circuit and second temperature detect switch (TDS) 17 that is used for coming control circuit conducting or disconnection in the circuit between first node and second node according to variations in temperature; When master control line 11 and 12 reversal connections of temperature control line or short circuit; First temperature detect switch (TDS) 16, Thermal Cutoffs 15 and second temperature detect switch (TDS) 17 in the circuit all can play a role; Make motor can directly not burn, can prevent to be a kind of safe and reliable control circuit because potential safety hazard and motor that circuit reversal connection or short circuit bring directly burn the economic loss of bringing.
More than a kind of motor control circuit and control device that the utility model provided have been carried out detailed introduction; For one of ordinary skill in the art; Thought according to the utility model embodiment; The part that on embodiment and range of application, all can change, in sum, this description should not be construed as the restriction to the utility model.
Claims (6)
1. a motor control circuit is characterized in that, comprising:
Master control line (11), temperature control line (12), just change line (13), reversed line (14), Thermal Cutoffs (15) and first temperature detect switch (TDS) (16);
Be in series with first temperature detect switch (TDS) (16) that is used for coming according to variations in temperature control circuit conducting or disconnection in the input of said master control line (11) and the circuit between first node, said first node is the tie point of master control line (11) and temperature control line (12);
Be in series with the Thermal Cutoffs (15) that is used for protective circuit in the circuit between said first node and second node, said second node is master control line (11) and the tie point that just changes line (13) and/or reversed line (14).
2. motor control circuit according to claim 1 is characterized in that, also comprises: second temperature detect switch (TDS) (17);
Be in series with second temperature detect switch (TDS) (17) that is used for coming control circuit conducting or disconnection in the circuit between said first node and second node according to variations in temperature.
3. motor control circuit according to claim 2 is characterized in that,
The break-off signal value of said first temperature detect switch (TDS) (16) is lower than the break-off signal value of said second temperature detect switch (TDS) (17).
4. motor control circuit according to claim 3 is characterized in that,
The break-off signal value of said first temperature detect switch (TDS) (16) and second temperature detect switch (TDS) (17) is lower than the fusing-off temperature value of said Thermal Cutoffs (15).
5. according to each described motor control circuit in the claim 1 to 4, it is characterized in that,
The input of said master control line (11), just change the output of line (13) and the output of reversed line (14) and be connected with the motor power supply, the output of said temperature control line (12) is connected with user's control end.
6. a controller for motor is characterized in that, comprises described any motor control circuit of claim 1 to 5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204548750U CN202309581U (en) | 2011-11-16 | 2011-11-16 | Motor control circuit and control device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204548750U CN202309581U (en) | 2011-11-16 | 2011-11-16 | Motor control circuit and control device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202309581U true CN202309581U (en) | 2012-07-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204548750U Expired - Fee Related CN202309581U (en) | 2011-11-16 | 2011-11-16 | Motor control circuit and control device |
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| Country | Link |
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| CN (1) | CN202309581U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105207170A (en) * | 2015-08-13 | 2015-12-30 | 郑遥 | Improved fuse mechanism |
-
2011
- 2011-11-16 CN CN2011204548750U patent/CN202309581U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105207170A (en) * | 2015-08-13 | 2015-12-30 | 郑遥 | Improved fuse mechanism |
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