CN218062702U - Control circuit of zero cold water heater high-pressure direct-current water pump - Google Patents
Control circuit of zero cold water heater high-pressure direct-current water pump Download PDFInfo
- Publication number
- CN218062702U CN218062702U CN202220900413.5U CN202220900413U CN218062702U CN 218062702 U CN218062702 U CN 218062702U CN 202220900413 U CN202220900413 U CN 202220900413U CN 218062702 U CN218062702 U CN 218062702U
- Authority
- CN
- China
- Prior art keywords
- module
- resistor
- diode
- capacitor
- voltage
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 55
- 238000001914 filtration Methods 0.000 claims abstract description 9
- 238000004804 winding Methods 0.000 claims description 39
- 239000003990 capacitor Substances 0.000 claims description 37
- 230000000087 stabilizing effect Effects 0.000 claims description 15
- 230000010354 integration Effects 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000005693 optoelectronics Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Images
Landscapes
- Dc-Dc Converters (AREA)
Abstract
The utility model discloses a control circuit of a zero-cold water heater high-voltage direct-current water pump, which comprises an alternating-current input interface, a direct-current output interface, a rectification module, a filtering module, an inversion module, a high-frequency transformer, a rectification voltage reduction module, a feedback module and a power supply module, wherein the power supply module is used for supplying power to a controller of the high-voltage direct-current water pump; this technical scheme adds the power module who is used for carrying out the power supply to the controller of high-pressure DC water pump on original rectification step-down module's basis, and this power module need not independent setting rectifier device and filtering device etc. only need directly to utilize original high-frequency transformer can provide direct current voltage electric current for the controller of high-pressure DC water pump, realizes water heater control circuit's integration, effectively makes water heater control circuit compacter.
Description
Technical Field
The utility model relates to an electronic circuit technical field, more specifically say and relate to a control circuit of zero cold water heater high pressure straight-flow water pump.
Background
For controlling a direct-current high-pressure water pump installed inside a zero-cold water heater, in order to cooperate with the water pump in the prior art, a controller special for controlling the water pump needs to be configured outside a main system of the water heater, and the controller receives an instruction from a main control system of the water heater to control the water pump. In the prior art, an independent power supply is generally adopted to supply power to a controller of the water pump, so that the installation layout of internal devices of the water heater is complicated, the internal structure design of the water heater is not facilitated, and the production of water heater products is also not facilitated.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problem, the utility model aims to provide a: a control circuit of a high-pressure direct-current water pump of a zero-cold water heater is provided.
The utility model discloses a technical scheme that the solution problem adopted is:
a control circuit of a high-voltage direct-current water pump of a zero-cold-water heater comprises an alternating-current input interface, a direct-current output interface, a rectification module, a filtering module, an inversion module, a high-frequency transformer, a rectification voltage reduction module, a feedback module and a power supply module, wherein the number of the direct-current output interfaces is multiple, the number of the rectification voltage reduction modules is multiple, and the power supply module is used for supplying power to a controller of the high-voltage direct-current water pump;
the high-frequency transformer is configured with a primary winding and a plurality of secondary windings;
the alternating current input interface, the rectification module, the filtering module and the inversion module are electrically connected in sequence, the inversion module is connected with the primary winding of the high-frequency transformer, the rectification voltage-reducing module, the power supply module and the feedback module are connected with the secondary windings of the high-frequency transformer in a one-to-one correspondence manner, the rectification voltage-reducing module and the power supply module are connected with the direct current output interface in a one-to-one correspondence manner, and the feedback module is connected with the inversion module.
As a further improvement of the foregoing technical solution, in the technical solution, the secondary winding correspondingly connected to the power supply module is defined as a first secondary winding, the power supply module includes a diode D1, a capacitor C2, and a voltage stabilizing chip with a model of 78L15C, an anode of the diode D1 is connected to the first secondary winding, a cathode of the diode D1 is connected to an input end of the voltage stabilizing chip, an output end of the voltage stabilizing chip is connected to the dc output interface corresponding to the power supply module, one end of the capacitor C1 is connected to the input end of the voltage stabilizing chip, the other end of the capacitor C1 is grounded, one end of the capacitor C2 is connected to the output end of the voltage stabilizing chip, and the other end of the capacitor C2 is grounded.
As a further improvement of the above technical solution, the inverter module includes an inverter chip of type OB5269, a switching tube Q1, a diode D2, a diode D3, a resistor R1, a resistor R2, a resistor R3, a capacitor C3, and a capacitor C4, and the inverter chip is configured with a power supply end, a switching end, and a feedback end;
the feedback end of the inverter chip is connected with the feedback module, the switch end of the inverter chip is connected with the grid electrode of the switch tube Q1, the drain electrode of the switch tube Q1 is connected with the anode of the diode D3, the source electrode of the switch tube Q1 is grounded through the resistor R3, the cathode of the diode D3 is connected with one end of the capacitor C4 through the resistor R2, the other end of the capacitor C4 is connected with one end of the primary winding of the high-frequency transformer, the other end of the primary winding of the high-frequency transformer is connected with the anode of the diode D3, the anode of the diode D2 is connected with the first secondary winding, the cathode of the diode D2 is connected with the capacitor C3 through the resistor R1, and the power end of the inverter chip is connected between the resistor R1 and the capacitor C3.
As a further improvement of the above technical solution, in the technical solution, the secondary winding correspondingly connected to the feedback module is defined as a second secondary winding, and the feedback module includes a photocoupler U1, a three-terminal regulator tube with model number TL431, a diode D4, a resistor R5, a resistor R6, and a capacitor C5;
the second secondary winding is connected with the anode of the diode D4, the cathode of the diode D4 is connected with the cathode of the three-terminal voltage-stabilizing tube through the resistor R4 and the resistor R5 in sequence, the anode of the three-terminal voltage-stabilizing tube is grounded, the cathode of the three-terminal voltage-stabilizing tube is connected with the reference electrode of the three-terminal voltage-stabilizing tube through the capacitor C5 and the resistor R6 in sequence, the anode of the photoelectric coupler U1 is connected with the connection point of the resistor R4 and the resistor R5, the cathode of the photoelectric coupler U1 is connected with the cathode of the three-terminal voltage-stabilizing tube, the collector of the photoelectric coupler U1 is connected with the feedback end of the inverter chip, and the emitter of the photoelectric coupler U1 is grounded.
As a further improvement of the above technical solution, the present technical solution further includes an EMI filter module, the EMI filter module is disposed between the ac input interface and the rectifier module, and the ac input interface is connected to the rectifier module through the EMI filter module.
The beneficial effects of the utility model are that: this technical scheme adds the power module who is used for carrying out the power supply to the controller of high-pressure DC water pump on original rectification step-down module's basis, and this power module need not independent setting rectifier device and filtering device etc. only need directly to utilize original high-frequency transformer can provide direct current voltage electric current for the controller of high-pressure DC water pump, realizes water heater control circuit's integration, effectively makes water heater control circuit compacter.
Drawings
The invention will be further explained with reference to the drawings and the detailed description.
Fig. 1 is a schematic diagram of a circuit module of the present invention;
fig. 2 is a schematic circuit diagram of the present invention.
Detailed Description
This section will describe in detail the embodiments of the present invention, the preferred embodiments of which are shown in the attached drawings, which are used to supplement the description of the text part of the specification with figures, so that one can visually and vividly understand each technical feature and the whole technical solution of the present invention, but it cannot be understood as a limitation to the scope of the present invention.
In the description of the present invention, it should be understood that the directional descriptions, such as the directions or positional relationships indicated by upper, lower, front, rear, left, right, etc., are based on the directions or positional relationships shown in the drawings, and are only for convenience of description and simplification of the description, but not for indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and thus should not be construed as limiting the present invention.
In the description of the present invention, a plurality of meanings are one or more, a plurality of meanings are two or more, and the terms greater than, smaller than, exceeding, etc. are understood as excluding the number, and the terms greater than, lower than, within, etc. are understood as including the number. If there is a description of first and second for the purpose of distinguishing technical features only, this is not to be understood as indicating or implying a relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of technical features indicated.
In the description of the present invention, unless there is an explicit limitation, the terms such as setting, installing, connecting, etc. should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meaning of the terms in the present invention by combining the specific contents of the technical solution.
Referring to fig. 1 and fig. 2, the application discloses a control circuit of a high-voltage dc water pump of a zero-cold-water heater, wherein a first embodiment of the control circuit comprises an ac input interface, a dc output interface, a rectifier module, a filter module, an inverter module, a high-frequency transformer, a rectifier step-down module, a feedback module and a power supply module, wherein the dc output interface is provided with a plurality of rectifier step-down modules, the rectifier step-down modules are provided with a plurality of rectifier step-down modules, the power supply module is used for supplying power to a controller of the high-voltage dc water pump, the rectifier step-down modules are used for supplying power to devices such as a fan and an electromagnetic valve of the water heater, and the rectifier step-down modules externally output dc voltages with different amplitudes according to actual power supply conditions;
the high-frequency transformer is configured with a primary winding and a plurality of secondary windings;
the alternating current input interface, the rectification module, the filtering module and the inversion module are electrically connected in sequence, the inversion module is connected with the primary winding of the high-frequency transformer, the rectification voltage reduction modules, the power supply module and the feedback module are connected with the secondary windings of the high-frequency transformer in a one-to-one correspondence mode, the rectification voltage reduction modules and the power supply module are connected with the direct current output interfaces in a one-to-one correspondence mode, and the feedback module is connected with the inversion module.
Of course, this embodiment the control circuit still includes water heater main system and water pump controller, the water heater main system passes through isolating circuit and is connected with water pump controller, isolating circuit includes optoelectronic coupler and peripheral circuit thereof.
Specifically, in this embodiment, add the power module that is used for supplying power to the controller of high-voltage direct current water pump on the basis of original rectification step-down module, power module need not independent setting rectifier device and filter device etc. only need directly to utilize original high frequency transformer can provide the direct current voltage electric current for the controller of high-voltage direct current water pump, realizes water heater control circuit's integration, effectively makes water heater control circuit compacter.
Further, as a preferred implementation manner, in this embodiment, the secondary winding correspondingly connected to the power supply module is defined as a first secondary winding, the power supply module includes a diode D1, a capacitor C2, and a voltage stabilizing chip with a model number of 78L15C, an anode of the diode D1 is connected to the first secondary winding, a cathode of the diode D1 is connected to an input end of the voltage stabilizing chip, an output end of the voltage stabilizing chip is connected to the dc output interface corresponding to the power supply module, one end of the capacitor C1 is connected to the input end of the voltage stabilizing chip, and the other end is grounded, one end of the capacitor C2 is connected to the output end of the voltage stabilizing chip, and the other end is grounded.
Further, in a preferred embodiment, in this embodiment, the inverter module includes an inverter chip of type OB5269, a switching tube Q1, a diode D2, a diode D3, a resistor R1, a resistor R2, a resistor R3, a capacitor C3, and a capacitor C4, and the inverter chip is configured with a power supply terminal, a switching terminal, and a feedback terminal;
the feedback end of the inverter chip is connected with the feedback module, the switch end of the inverter chip is connected with the grid electrode of the switch tube Q1, the drain electrode of the switch tube Q1 is connected with the anode of the diode D3, the source electrode of the switch tube Q1 is grounded through the resistor R3, the cathode of the diode D3 is connected with one end of the capacitor C4 through the resistor R2, the other end of the capacitor C4 is connected with one end of the primary winding of the high-frequency transformer, the other end of the primary winding of the high-frequency transformer is connected with the anode of the diode D3, the anode of the diode D2 is connected with the first secondary winding, the cathode of the diode D2 is connected with the capacitor C3 through the resistor R1, and the power end of the inverter chip is connected between the resistor R1 and the capacitor C3.
Further as a preferred implementation manner, in this embodiment, the secondary winding correspondingly connected to the feedback module is defined as a second secondary winding, and the feedback module includes a photocoupler U1, a three-terminal regulator tube with a model number of TL431, a diode D4, a resistor R5, a resistor R6, and a capacitor C5;
the second secondary winding is connected with the anode of the diode D4, the cathode of the diode D4 is connected with the cathode of the three-terminal voltage-stabilizing tube through the resistor R4 and the resistor R5 in sequence, the anode of the three-terminal voltage-stabilizing tube is grounded, the cathode of the three-terminal voltage-stabilizing tube is connected with the reference electrode of the three-terminal voltage-stabilizing tube through the capacitor C5 and the resistor R6 in sequence, the anode of the photoelectric coupler U1 is connected with the connection point of the resistor R4 and the resistor R5, the cathode of the photoelectric coupler U1 is connected with the cathode of the three-terminal voltage-stabilizing tube, the collector of the photoelectric coupler U1 is connected with the feedback end of the inverter chip, and the emitter of the photoelectric coupler U1 is grounded.
Further as a preferred implementation manner, in this embodiment, the power supply further includes an EMI filter module, the EMI filter module is disposed between the ac input interface and the rectifier module, and the ac input interface is connected to the rectifier module through the EMI filter module.
The above is only the preferred embodiment of the present invention, not limiting the patent scope of the present invention, all of which are under the concept of the present invention, the equivalent structure transformation made by the contents of the specification and the drawings is utilized, or the direct or indirect application is included in other related technical fields in the patent protection scope of the present invention.
Claims (5)
1. The utility model provides a control circuit of zero cold water heater high pressure direct current water pump which characterized in that: the high-voltage direct-current water pump comprises a plurality of alternating-current input interfaces, a plurality of direct-current output interfaces, a plurality of rectifying modules, a filtering module, an inverting module, a high-frequency transformer, a plurality of rectifying and voltage-reducing modules, a feedback module and a power supply module, wherein the power supply module is used for supplying power to a controller of the high-voltage direct-current water pump;
the high-frequency transformer is configured with a primary winding and a plurality of secondary windings;
the alternating current input interface, the rectification module, the filtering module and the inversion module are electrically connected in sequence, the inversion module is connected with the primary winding of the high-frequency transformer, the rectification voltage reduction modules, the power supply module and the feedback module are connected with the secondary windings of the high-frequency transformer in a one-to-one correspondence mode, the rectification voltage reduction modules and the power supply module are connected with the direct current output interfaces in a one-to-one correspondence mode, and the feedback module is connected with the inversion module.
2. The control circuit of claim 1 for a zero cold water heater hvdc water pump, comprising: the secondary winding correspondingly connected with the power supply module is defined as a first secondary winding, the power supply module comprises a diode D1, a capacitor C2 and a voltage stabilizing chip with the model of 78L15C, the anode of the diode D1 is connected with the first secondary winding, the cathode of the diode D1 is connected with the input end of the voltage stabilizing chip, the output end of the voltage stabilizing chip is connected with the direct current output interface corresponding to the power supply module, one end of the capacitor C1 is connected with the input end of the voltage stabilizing chip, the other end of the capacitor C1 is grounded, one end of the capacitor C2 is connected with the output end of the voltage stabilizing chip, and the other end of the capacitor C2 is grounded.
3. The control circuit of claim 2, wherein the control circuit comprises: the inverter module comprises an inverter chip with the model number of OB5269, a switching tube Q1, a diode D2, a diode D3, a resistor R1, a resistor R2, a resistor R3, a capacitor C3 and a capacitor C4, and the inverter chip is configured with a power supply end, a switching end and a feedback end;
the feedback end of the inverter chip is connected with the feedback module, the switch end of the inverter chip is connected with the grid electrode of the switch tube Q1, the drain electrode of the switch tube Q1 is connected with the anode of the diode D3, the source electrode of the switch tube Q1 is grounded through the resistor R3, the cathode of the diode D3 is connected with one end of the capacitor C4 through the resistor R2, the other end of the capacitor C4 is connected with one end of the primary winding of the high-frequency transformer, the other end of the primary winding of the high-frequency transformer is connected with the anode of the diode D3, the anode of the diode D2 is connected with the first secondary winding, the cathode of the diode D2 is connected with the capacitor C3 through the resistor R1, and the power end of the inverter chip is connected between the resistor R1 and the capacitor C3.
4. The control circuit of claim 3 for a zero cold water heater high pressure direct current water pump, wherein: the secondary winding correspondingly connected with the feedback module is defined as a second secondary winding, and the feedback module comprises a photoelectric coupler U1, a three-terminal voltage regulator tube with the model number of TL431, a diode D4, a resistor R5, a resistor R6 and a capacitor C5;
the second secondary winding is connected with the anode of the diode D4, the cathode of the diode D4 is connected with the cathode of the three-terminal voltage-stabilizing tube through the resistor R4 and the resistor R5 in sequence, the anode of the three-terminal voltage-stabilizing tube is grounded, the cathode of the three-terminal voltage-stabilizing tube is connected with the reference electrode of the three-terminal voltage-stabilizing tube through the capacitor C5 and the resistor R6 in sequence, the anode of the photoelectric coupler U1 is connected with the connection point of the resistor R4 and the resistor R5, the cathode of the photoelectric coupler U1 is connected with the cathode of the three-terminal voltage-stabilizing tube, the collector of the photoelectric coupler U1 is connected with the feedback end of the inverter chip, and the emitter of the photoelectric coupler U1 is grounded.
5. The control circuit of claim 1 for a zero cold water heater hvdc water pump, comprising: the alternating current input interface is connected with the rectifying module through the EMI filtering module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220900413.5U CN218062702U (en) | 2022-04-16 | 2022-04-16 | Control circuit of zero cold water heater high-pressure direct-current water pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220900413.5U CN218062702U (en) | 2022-04-16 | 2022-04-16 | Control circuit of zero cold water heater high-pressure direct-current water pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218062702U true CN218062702U (en) | 2022-12-16 |
Family
ID=84428744
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220900413.5U Active CN218062702U (en) | 2022-04-16 | 2022-04-16 | Control circuit of zero cold water heater high-pressure direct-current water pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218062702U (en) |
-
2022
- 2022-04-16 CN CN202220900413.5U patent/CN218062702U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106488607A (en) | Switching Power Supply and television set | |
| CN109525132A (en) | A kind of interleaved PFC constant voltage drive circuit, driving power and television set | |
| CN114793070A (en) | Multi-path alternative output isolation switch power supply and LLC (logical link control) switch circuit | |
| CN116131624A (en) | Power supply circuit, power supply system and electronic device | |
| US20240186799A1 (en) | Power unit and solid-state transformer | |
| CN108964450B (en) | Composite circuit for connecting DC power supply to AC power supply | |
| CN218062702U (en) | Control circuit of zero cold water heater high-pressure direct-current water pump | |
| CN203691365U (en) | Self-powered circuit of power semiconductor switch driving circuit | |
| CN213879374U (en) | Double-feedback single-phase online uninterrupted power supply system | |
| CN108696159A (en) | A kind of unmanned electromechanical sources of 10KW | |
| CN108322051A (en) | A kind of inverse-excitation type switch power-supply | |
| CN203911787U (en) | Novel power supply device for polysilicon hydrogenation furnace | |
| CN210405105U (en) | Frequency converter and frequency converter system | |
| CN114400649A (en) | Power supply circuit and power supply device | |
| CN103973141B (en) | The full DC frequency converting air-conditioner that a kind of application switch power circuit is powered | |
| CN111668872A (en) | Photovoltaic grid-connected device suitable for alternating current-direct current hybrid power distribution network | |
| CN215378777U (en) | Switching power supply circuit and switching power supply system using same | |
| CN214101210U (en) | Low-power consumption AC-DC conversion circuit | |
| CN111509983A (en) | Isolated multi-port direct current transformer and control method thereof | |
| CN216016507U (en) | Power supply circuit and charging device | |
| CN218514279U (en) | Switching power supply and alternating current-direct current conversion circuit | |
| CN219304707U (en) | Output regulating circuit | |
| CN215186489U (en) | Switching power supply circuit and multi-stage output switching power supply | |
| CN215897355U (en) | Intelligent high-performance small household appliance charger | |
| CN219576879U (en) | Bridge rectifier with control function |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |