CN203219192U - Power supply device and transverse loom - Google Patents
Power supply device and transverse loom Download PDFInfo
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- CN203219192U CN203219192U CN201220539882.5U CN201220539882U CN203219192U CN 203219192 U CN203219192 U CN 203219192U CN 201220539882 U CN201220539882 U CN 201220539882U CN 203219192 U CN203219192 U CN 203219192U
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Abstract
The utility model provides a power supply device and a transverse loom. The power supply device comprises a rectifier, a storage capacitor and a DC transformer; wherein, the input end of the rectifier is used for connecting with a three-phase AC voltage source, the output end of the rectifier is connected with a storage capacitor in parallel; the input end of the DC transformer is connected with the output end of the rectifier, and the output end of the DC transformer is used for connecting with power consuming equipment for outputting the DC voltage which is output from the rectifier after reducing for certain times. The power device supplies constant and stable DC voltage for the power consuming equipment and can be used as a working power supply of the power consuming equipment. The power supply device does not require a UPS module with higher cost, and therefore the power supply device has advantages of reduced cost and simple structure. Furthermore, times of charging/discharging of the storage capacitor are not limited. The power supply device further has strong charging/discharging capability and can further improve operation stability, thereby high-quality working power supply for the power consuming equipment.
Description
Technical field
The utility model relates to the power supply unit technology, relates in particular to a kind of supply unit and horizontal loom.
Background technology
Horizontal loom is the do not suit device of type knitting technology weave of a kind of braiding, horizontal loom mainly comprises three phase supply voltage source, control unit, actuator and lathe etc., supply voltage source is used to control unit and actuator that working power is provided, actuator is arranged on the lathe, be provided with knitting program in the control unit, to generate control command according to knitting program, control each actuator execution braid movement that cooperatively interacts, thereby finish the braiding of various colored types.
The required voltage of control unit work is direct current, therefore, is provided with special supply unit usually, and the three-phase alternating voltage that the three phase supply voltage source is provided converts direct voltage to offer control unit.
Existing supply unit mainly comprises uninterrupted power supply (uninterruptible power supply, abbreviation UPS) module, rectifier and transformer etc., the UPS module can provide lasting, stable, continual voltage, rectifier is used for the AC voltage conversion of UPS module output is become direct voltage, and then is undertaken offering control unit after the step-down by the direct voltage of transformer with rectifier output.
The effect that the UPS module is set in this supply unit is, when the three phase supply voltage source breaks down and cuts off the power supply suddenly, sustainable power supply a period of time, can keep relevant parameter in this section period inner control unit, in order to continue braiding from the preceding braiding row that cuts off the power supply after opening control unit again, guarantee the continuity of horizontal loom work, make horizontal loom have the continuous function of knitting of outage.
Comprise requisite parts such as inverter, storage battery and transformer in the UPS module of above-mentioned supply unit, cost height not only, and, storage battery wherein reduces greatly through its energy storage capacity of back that discharges and recharges of certain hour, influence the stability of supply unit operation, therefore, also influence the continous-stable work of horizontal loom.
The utility model content
The utility model provides a kind of supply unit on the one hand, to reduce the cost of supply unit, improves the stability of supply unit operation.
This supply unit comprises:
Rectifier, the input of described rectifier are used for being connected to the three-phase alternating current potential source, and the output of described rectifier is parallel with storage capacitance, are used for the AC voltage conversion of described three-phase alternating current potential source output is become direct voltage;
Commutator transformer, the input of described commutator transformer links to each other with the output of described rectifier, the output of described commutator transformer is used for being connected to power consumption equipment, is used for exporting behind the direct voltage reduction setting multiple with described rectifier output, thinks that power consumption equipment provides direct voltage.
Aforesaid supply unit, wherein, the capacitance of described storage capacitance is greater than 1000 μ F.
Another aspect of the present utility model provides a kind of horizontal loom, comprise control unit and three-phase alternating current potential source, also comprise supply unit of the present utility model, described three-phase alternating current potential source links to each other with the input of rectifier in the described supply unit, described control unit links to each other with the output of commutator transformer in the described supply unit, and described supply unit is used to described control unit that direct voltage is provided.
Aforesaid horizontal loom, wherein, also comprise the outage detection device, the input of described outage detection device links to each other with the input of rectifier in the described horizontal loom, the output of described outage detection device links to each other with described control unit, be used for input voltage at the input of described rectifier and generate under less than the predetermined threshold value state and preserve signal, preserve the parameter of current running status for control unit according to this preservation signal.
Aforesaid horizontal loom, wherein, described outage detection device comprises voltage sensor and comparator;
The input of described voltage sensor links to each other with the input of rectifier in the described horizontal loom, for detection of the input voltage value of described rectifier input;
The in-phase input end of described comparator links to each other with the output of described voltage sensor, the inverting input of described comparator connects a constant pressure source, the magnitude of voltage of described constant pressure source equals described predetermined threshold value, be used for input voltage value at described in-phase input end and generate under less than the magnitude of voltage state of described inverting input constant pressure source and preserve signal, preserve the parameter of current running status for control unit according to this preservation signal.
The supply unit that the utility model provides, can be power consumption equipment lasting, galvanic current pressure is provided, with the working power as power consumption equipment, this supply unit does not need to arrange the higher UPS module of cost, therefore, reduced the cost of supply unit and simple in structure, and, storage capacitance to discharge and recharge number of times unrestricted, its charging and discharging capabilities is strong, can further improve the stability of supply unit operation, for power consumption equipment provides quality high working power.
Description of drawings
The structural representation of the supply unit that Fig. 1 provides for the utility model embodiment;
The structural representation of the horizontal loom that Fig. 2 provides for the utility model embodiment;
The structural representation of the horizontal loom that Fig. 3 provides for another embodiment of the utility model.
Embodiment
The structural representation of the supply unit that Fig. 1 provides for the utility model embodiment, as shown in Figure 1, this supply unit comprises rectifier 100, storage capacitance 101 and commutator transformer 102.
The input of described rectifier 100 is used for being connected to three-phase alternating current potential source 10, and the output of described rectifier 100 is parallel with storage capacitance 101; The input of described commutator transformer 102 links to each other with the output of described rectifier 100, the output of described commutator transformer 102 is used for being connected to power consumption equipment 11, be used for the direct current pressure drop rut of described rectifier 100 outputs is decided to export behind the multiple, think that power consumption equipment 11 provides direct voltage.
In this supply unit, rectifier is the bridge architecture circuit of being made up of switch power devices such as transistor or thyristors, and rectifier is exported after the AC voltage conversion of three-phase alternating current potential source output can being become direct voltage.
Commutator transformer is the circuit of being made up of power electronic device and common transformer, by controlling wherein conducting or the shutoff of power electronic device, and utilize the energy transfer function of common transformer, the high-voltage dc voltage conversion is satisfied the low-voltage dc voltage of power consumption equipment requirement, the setting multiple that reduces can arrange as required, depends on size and the power consumption equipment required voltage size ratio of the direct voltage of rectifier output end output.
Storage capacitance is parallel to the output of rectifier, and storage capacitance can be used for stored charge, can be the storage capacitance charging by the direct voltage of rectifier output end output, after storage capacitance is full of electricity, just stores energy (being electric charge) between two pole plates of electric capacity.
The effect of storage capacitance is, when the outage suddenly of three-phase alternating current potential source or other faults, because the input of rectifier no longer includes the alternating voltage input, therefore cause no longer output dc voltage of rectifier output end, at this moment, owing to store energy in the storage capacitance, the input of storage capacitance and commutator transformer constitutes discharge loop, storage capacitance will be discharged, for commutator transformer provides direct voltage, commutator transformer will work on a period of time, and its output can continue output dc voltage, think that power consumption equipment provides direct voltage, energy in storage capacitance (being electric charge) discharges and finishes, power consumption equipment can work on a period of time, and this section period can be used as the buffer time of power consumption equipment, prevents that power consumption equipment outage suddenly from causing accident, for example, if power consumption equipment is the needed control unit of industrial production, this section period namely can be used as the time that control unit is preserved relevant parameter, prevents that control unit outage suddenly from lose relevant parameter.
Need to prove, the big I of storage capacitance capacitance arranges as required, relevant with the length of power consumption equipment required buffer time, if buffer time is longer, optional with the bigger storage capacitance of capacitance, if it is buffer time is shorter, optional with the less storage capacitance of capacitance, through experiment test, the capacitance of this storage capacitance is preferably greater than 1000 μ F.
The selection concrete grammar of the capacitance size of this storage capacitance can for:
Step 1, according to the estimation and actual test result, obtain required buffer time T of power consumption equipment time;
Step 2, according to estimation and actual test result, the electric current I of the required consumption of back power consumption equipment that obtains cutting off the power supply
Max
Step 3, according to Imax and output voltage V, obtain power output P
Out=I
MaxV;
Step 4, obtain the power P of commutator transformer input according to the efficient ε of commutator transformer
In=P
Out/ ε;
The minimum input voltage of step 5, the needs when the calculating commutator transformer is normally exported obtains voltage drop V and average voltage U that storage capacitance allows;
Step 6, according to input power P
InWith average voltage U, calculate average current input I
In
Step 7, easy in order to calculate, the discharge of hypothesis storage capacitance is steady, a linear discharge process earlier, then can be according to C=(1/I
In) * (V/T) calculates the capacitance size that needs.
Step 8, consider factors such as temperature drift, discharge process are non-linear, components and parts error, measure error, the size of capacitance suitably provides certain allowance.
As shown from the above technical solution, this supply unit can be power consumption equipment lasting, galvanic current pressure is provided, with the working power as power consumption equipment, this supply unit does not need to arrange the higher UPS module of cost, therefore, reduced the cost of supply unit and simple in structure, and, storage capacitance to discharge and recharge number of times unrestricted, its charging and discharging capabilities is strong, can further improve the stability of supply unit operation, for power consumption equipment provides quality high working power.
The utility model embodiment also provides a kind of horizontal loom, the structural representation of the horizontal loom that Fig. 2 provides for the utility model embodiment, as shown in Figure 2, this horizontal loom comprises control unit 12 and three-phase alternating current potential source 10, also comprise the supply unit 13 that the utility model embodiment provides, described three-phase alternating current potential source 10 links to each other with the input of rectifier 100 in the described supply unit 13, described control unit 12 links to each other with the output 102 of commutator transformer in the described supply unit 13, and described supply unit 13 is used to described control unit 12 that direct voltage is provided.
This horizontal loom, the supply unit that adopts the utility model embodiment to provide, power consumption equipment is control unit in this supply unit, think that control unit provides direct voltage, working power as control unit, and, when outage or other faults appear in the three-phase alternating current potential source, by storage capacitance wherein, this supply unit can continue output dc voltage a period of time, think that control unit provides direct voltage, control unit can work on a period of time, can keep the relevant parameter of current running status in this section period inner control unit, prevent that control unit outage suddenly from lose relevant parameter, in order to continue braiding from the preceding braiding row that cuts off the power supply after opening control unit again, guarantee the continuity of horizontal loom work, make horizontal loom have the continuous function of knitting of outage.
Need to prove, the capacitance size of storage capacitance in this supply unit, in the time of should satisfying three-phase alternating current potential source appearance outage or other faults, control unit is preserved the requirement of relevant parameter, in the practical application, can preserve the time of parameter according to control unit, consider the factors such as non-linear, measure error of temperature drift, capacitor discharge process, and keep certain allowance, choose the storage capacitance of suitable capacitance value.
The structural representation of the horizontal loom that Fig. 3 provides for another embodiment of the utility model, as shown in Figure 3, on the basis of above-described embodiment, further, also comprise outage detection device 14 in this horizontal loom, the input of described outage detection device 14 links to each other with the input of rectifier 100 in the described horizontal loom, the output of described outage detection device 14 links to each other with described control unit 12, be used for input voltage value at the input of described rectifier 100 and generate under less than the predetermined threshold value state and preserve signal, preserve the parameter of current operation for control unit 12 according to this preservation signal.
In the present embodiment, further be provided with the outage detection device, this outage detection device can be used for detecting the input voltage value of rectifier input, and when this input voltage value during less than predetermined threshold value, generate and preserve signal, when this predetermined threshold value outage or other faults occur for the three-phase alternating current potential source, the magnitude of voltage of rectifier input, this predetermined threshold value arranges as required, can be for being approximately a zero magnitude of voltage; Or during far below three-phase alternating current potential source normal condition, the input voltage value of rectifier input.
Control unit receives preserves the relevant parameter that can keep current operation behind the signal, and when preventing that outage or other faults from appearring in the three-phase alternating current potential source, control unit outage is suddenly lost relevant parameter.
As shown in Figure 3, in the above-mentioned horizontal loom, outage detection device 14 comprises voltage sensor 141 and comparator 142, wherein, the input of described voltage sensor 141 links to each other with the input of rectifier 100 in the described horizontal loom, for detection of the input voltage value of described rectifier 100 inputs; The in-phase input end of described comparator 142 links to each other with the output of described voltage sensor 141, the inverting input of described comparator 142 connects a constant pressure source 143, the magnitude of voltage of described constant pressure source 143 equals described predetermined threshold value, be used for input voltage value at described in-phase input end and generate under less than the magnitude of voltage state of described inverting input constant pressure source and preserve signal, preserve the parameter of current running status for control unit 12 according to this preservation signal.
In the present embodiment, input voltage value by voltage sensor senses rectifier input, and from the output of the output of voltage sensor, the input voltage value of the in-phase input end of device as a comparison, and the inverting input of comparator connects a constant pressure source as the reference magnitude of voltage, the magnitude of voltage of constant pressure source equals predetermined threshold value, when the magnitude of voltage of comparator in-phase input end input during less than the reference voltage level (being predetermined threshold value) of inverting input, comparator will be exported a low level signal, this signal can be used as the preservation signal and offers control unit, preserves the parameter of current running status according to this preservation signal for control unit.
Above-described embodiment is just enumerated a kind of outage detection device of structure, and the outage detection device also can be other forms of structure, for example, can be that the Programmable Logic Controller of relative program or other hardware circuits realize, it is described to be not limited to present embodiment.
It should be noted that at last: above each embodiment is not intended to limit only in order to the technical solution of the utility model to be described; Although have been described in detail with reference to the utility model of aforementioned each embodiment, those of ordinary skill in the art is to be understood that: it still can be made amendment to the technical scheme that aforementioned each embodiment puts down in writing, and perhaps some or all of technical characterictic wherein is equal to replacement; And these modifications or replacement do not make the essence of appropriate technical solution break away from the scope of each embodiment technical scheme of the utility model.
Claims (5)
1. a supply unit is characterized in that, comprising:
Rectifier, the input of described rectifier are used for being connected to the three-phase alternating current potential source, and the output of described rectifier is parallel with storage capacitance, are used for the AC voltage conversion of described three-phase alternating current potential source output is become direct voltage;
Commutator transformer, the input of described commutator transformer links to each other with the output of described rectifier, the output of described commutator transformer is used for being connected to power consumption equipment, is used for exporting behind the direct voltage reduction setting multiple with described rectifier output, thinks that power consumption equipment provides direct voltage.
2. supply unit according to claim 1 is characterized in that, the capacitance of described storage capacitance is greater than 1000 μ F.
3. horizontal loom, comprise control unit and three-phase alternating current potential source, it is characterized in that: also comprise claim 1 or 2 described supply units, described three-phase alternating current potential source links to each other with the input of rectifier in the described supply unit, described control unit links to each other with the output of commutator transformer in the described supply unit, and described supply unit is used to described control unit that direct voltage is provided.
4. horizontal loom according to claim 3, it is characterized in that: also comprise the outage detection device, the input of described outage detection device links to each other with the input of rectifier in the described horizontal loom, the output of described outage detection device links to each other with described control unit, be used for input voltage at the input of described rectifier and generate under less than the predetermined threshold value state and preserve signal, preserve the parameter of current running status for control unit according to this preservation signal.
5. horizontal loom according to claim 4, it is characterized in that: described outage detection device comprises voltage sensor and comparator, wherein,
The input of described voltage sensor links to each other with the input of rectifier in the described horizontal loom, for detection of the input voltage value of described rectifier input;
The in-phase input end of described comparator links to each other with the output of described voltage sensor, the inverting input of described comparator connects a constant pressure source, the magnitude of voltage of described constant pressure source equals described predetermined threshold value, be used for input voltage value at described in-phase input end and generate under less than the magnitude of voltage state of described inverting input constant pressure source and preserve signal, preserve the parameter of current running status for control unit according to this preservation signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220539882.5U CN203219192U (en) | 2012-10-19 | 2012-10-19 | Power supply device and transverse loom |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220539882.5U CN203219192U (en) | 2012-10-19 | 2012-10-19 | Power supply device and transverse loom |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203219192U true CN203219192U (en) | 2013-09-25 |
Family
ID=49208693
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201220539882.5U Expired - Fee Related CN203219192U (en) | 2012-10-19 | 2012-10-19 | Power supply device and transverse loom |
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| Country | Link |
|---|---|
| CN (1) | CN203219192U (en) |
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2012
- 2012-10-19 CN CN201220539882.5U patent/CN203219192U/en not_active Expired - Fee Related
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130925 Termination date: 20211019 |