CN202709476U - Control system of constant-temperature gas water heater - Google Patents
Control system of constant-temperature gas water heater Download PDFInfo
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- CN202709476U CN202709476U CN 201220257179 CN201220257179U CN202709476U CN 202709476 U CN202709476 U CN 202709476U CN 201220257179 CN201220257179 CN 201220257179 CN 201220257179 U CN201220257179 U CN 201220257179U CN 202709476 U CN202709476 U CN 202709476U
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- gas water
- water heater
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Abstract
The utility model relates to the field of gas water heaters, and discloses a control system of a constant-temperature gas water heater. The control system comprises a master control module and a peripheral control module; the master control module is electrically connected with the peripheral control module; and the peripheral control module comprises a first chip IC1 and a second chip IC2 which are respectively integrated. The peripheral control module comprises three electromagnetic valve driving circuits, a proportional valve PWM (pulse-width modulation) circuit, three relay driving circuits, three electromagnetic valve detecting circuit and a flame detecting circuit. Two electromagnetic valve driving circuits, two electromagnetic valve detecting circuits and three relay driving circuits are integrated on the first chip. An electromagnetic valve driving circuit, a proportional valve PMW circuit, an electromagnetic valve detecting circuit and a flame detecting circuit are integrated on the second chip. The control system of the constant-temperature gas water heater has the advantages that control circuits are simple in structure, installation of accessories during production is facilitated, the reject ratio is reduced, the production efficiency is improved, and raw materials are saved.
Description
Technical field
The utility model relates to gas heater device field, relates in particular to a kind of control system of constant temp gas water heater.
Background technology
Water heater refers to by physical principle, becomes a kind of device of hot water so that cold water temperature raises within a certain period of time, can be divided into three kinds of gas heater, electric heater and solar water heaters according to the principle difference.Development also is to use to get the most general gas heater simultaneously the earliest, is to act as a fuel with combustion gas, by the combustion heating mode heat is delivered in the cold water of the heat exchanger of flowing through the gas appliance with the purpose that reaches preparation hot water.Its birth indicates that Chinese's civil pot epoch of having a bath of heating up water finish, " 86 standard ", " 94 standard ", " 2001 standard ", " 2007 standard " four standards have in succession been experienced, the renewal of standard each time, mean on the Design and manufacture level of gas heater a new step, also improved the entry threshold of industry simultaneously.For the high-end gas heater in the industry in modern times, can be automatically and regulate fast the temperature value that water temperature is set to the user, the not only requirement of intelligent and high efficiency, the favor of having received wide variety of user.The high terminal of this kind, core is control circuit, this control circuit uses a main control chip and peripheral control the electric circuit constitute.But this peripheral control circuit is comprised of a large amount of simulation electronic components and parts, not only circuit is complicated, external-connected port and the signal of main control chip are numerous simultaneously, logic function is also very complicated, final so that make the enormous size of wiring board and the mounting casing of this control circuit, the fault rate of control circuit is also higher, makes raw-material cost and also corresponding raising of production cost thereby cause.
The utility model content
The purpose of the utility model embodiment is: a kind of control system of constant temp gas water heater is provided, has a control circuit simple in structure, the accessory when being convenient to produce is installed, and fraction defective descends, and has improved simultaneously production efficiency, has also saved raw material.
The control system of a kind of constant temp gas water heater that the utility model embodiment provides comprises main control module and peripheral control module, and described main control module links to each other with peripheral control module electricity; Described peripheral control module is integrated by the first chip IC 1 and the second chip IC 2 respectively.
Optionally, described peripheral control module comprises 3 way solenoid valve drive circuits, No. 1 proportioning valve PWM regulating circuit, 3 road relay drive circuits and testing circuit.
Optionally, described testing circuit comprises 3 way solenoid valve testing circuits and 1 road flame detection circuit.
Optionally, described the first integrated chip 2 way solenoid valve drive circuits, 2 way solenoid valve testing circuits and 3 road relay drive circuits.
Optionally, described the second integrated chip 1 way solenoid valve drive circuit, No. 1 proportioning valve PMW regulating circuit, 1 way solenoid valve testing circuit and 1 road flame detection circuit.
Therefore, the technical scheme of application the utility model embodiment, the peripheral circuit of the control circuit that existing complexity is mixed and disorderly is integrated in 2 chips, not only greatly simplified the structure of whole control circuit, simultaneously, so that the performance of control improves, also reduced the fault rate of control circuit.For production firm, saving the raw-material while, also improved greatly production efficiency, profit margin also is high.Wherein the circuit of main control module and chip do not change, only peripheral circuit being integrated among the first chip IC 1 and the second chip I C2. described peripheral circuit comprises driving circuit for electromagnetic valve, proportioning valve PWM regulating circuit, relay drive circuit, detection circuit for electromagnetic valve and flame detection circuit, then the first chip IC 1 is integrated 2 way solenoid valve drive circuits, 2 way solenoid valve testing circuits and 3 road relay drive circuits; The second chip IC 2 is integrated 1 way solenoid valve drive circuit, No. 1 proportioning valve PMW regulating circuit, 1 way solenoid valve testing circuit and 1 road flame detection circuit.Described integrated be not simple stack or replacement, but reaching under the common prerequisite of same energy, simplified greatly circuit structure, and be encapsulated in the shell of a microstructure.Although in the situation that guaranteed that function is the same, because the greatly simplification of circuit structure, so that the fault rate of whole control circuit descends, performance improves, and has also saved raw material, has improved production efficiency.
Description of drawings
Accompanying drawing described herein is used to provide further understanding of the present utility model, consists of the application's a part, does not consist of to improper restriction of the present utility model, in the accompanying drawings:
The schematic diagram of driving circuit for electromagnetic valve in the control circuit of the existing constant temp gas water heater that Fig. 1 provides for the utility model embodiment;
The schematic diagram of proportioning valve PWM regulating circuit in the control circuit of the existing constant temp gas water heater that Fig. 2 provides for the utility model embodiment;
The schematic diagram of the control circuit repeat circuit drive circuit of the existing constant temp gas water heater that Fig. 3 provides for the utility model embodiment;
The schematic diagram of detection circuit for electromagnetic valve in the control circuit of the existing constant temp gas water heater that Fig. 4 provides for the utility model embodiment;
The schematic diagram of the control circuit Flame testing circuit of the existing constant temp gas water heater that Fig. 5 provides for the utility model embodiment;
The theory diagram of the control system of a kind of constant temp gas water heater that Fig. 6 provides for the utility model embodiment;
The circuit theory diagrams of the first chip IC 1 in the control system of a kind of constant temp gas water heater that Fig. 7 provides for the utility model embodiment;
The circuit theory diagrams of the second chip IC 2 in the control system of a kind of constant temp gas water heater that Fig. 8 provides for the utility model embodiment.
The specific embodiment
Describe the utility model in detail below in conjunction with accompanying drawing and specific embodiment, be used for explaining the utility model in this illustrative examples of the present utility model and explanation, but not as to restriction of the present utility model.
Embodiment:
As shown in Figure 6, be the control system of constant temp gas water heater described in the utility model, comprise main control module 1 and peripheral control module 2, described main control module 1 links to each other with described peripheral control module 2 electricity.Wherein said peripheral control module 2 comprises driving circuit for electromagnetic valve, proportioning valve PWM regulating circuit, relay drive circuit, detection circuit for electromagnetic valve and flame detection circuit.
Wherein, the circuit theory diagrams of described driving circuit for electromagnetic valve as shown in Figure 1, by receiving the 0.5 second high level of main control singlechip ATmega16L-8AU output in the main control module 1, and greater than 500Hz, dutycycle is behind 50% the square-wave signal, the adhesive magnetic valve, thus the purpose that drives magnetic valve finished.
The circuit theory diagrams of described proportioning valve PWM regulating circuit as shown in Figure 2, by receiving the square-wave signal of the change frequency of main control singlechip ATmega16L-8AU output in the main control module 1, thereby so that the size of adjustment of combustion gas flow left by proportioning valve according to the opening latus rectum under the respective frequencies square-wave signal, realize thermostatically controlled purpose.
The circuit theory diagrams of described relay drive circuit by receiving the high level signal of main control singlechip ATmega16L-8AU output in the main control module 1, are opened thereby drive corresponding relay as shown in Figure 3.
Whether the circuit theory diagrams of described detection circuit for electromagnetic valve are used for detecting extraneous 24V magnetic valve and connect reliably as shown in Figure 4.If the external electromagnetic valve reliably connects, then the output low level signal is to the main control singlechip ATmega16L-8AU of main control module 1; If external electromagnetic valve bad connection, then export high level signal to the main control singlechip ATmega16L-8AU of main control module 1, thereby the main control singlechip ATmega16L-8AU of main control module 1 sends instruction to display to be shown without flame, thereby inform this problem of user, the user then can adjust accordingly.
The circuit theory diagrams of described flame detection circuit are used for detecting whether have flare up fire as shown in Figure 5.If the external signal of input is negative voltage, then export high level signal to the main control singlechip ATmega16L-8AU of main control module 1, there is flare up fire in expression; If the external of input is positive voltage, then export high level signal to the main control singlechip ATmega16L-8AU of main control module 1, expression is without flare up fire, thereby the main control singlechip ATmega16L-8AU of main control module 1 sends instruction to display to be shown without flame, thereby inform this problem of user, the user is replaceable combustion gas then.
More than understand the function of each circuit in the peripheral control module 2, thereby known the operation principle of constant temp gas water heater.Because described peripheral control module 2 has respectively the first chip IC 1 and the second chip IC 2 integrated, and described the first chip IC 1 integrated 2 way solenoid valve drive circuits, 2 way solenoid valve testing circuits and 3 road relay drive circuits; Described the second chip IC 2 is integrated 1 way solenoid valve drive circuit, No. 1 proportioning valve PMW regulating circuit, 1 way solenoid valve testing circuit and 1 road flame detection circuit.Wherein the circuit theory diagrams of the first chip IC 1 as shown in Figure 7, the circuit theory diagrams of the second chip IC 2 are as shown in Figure 8.In order better to understand the function of the first chip IC 1 and the second chip IC 2, then provide the pin arrangements figure of the two, as shown in Figure 9 and Figure 10, simultaneously concrete pin function table is shown in following table one and table two.
| Pin | Symbol | I/O | The |
|
| 1 | K1I_N | I | |
|
| 2 | K2I_N | I | |
|
| 3 | K3I_N | I | |
|
| 4 | CN1I_N | I | Magnetic valve |
|
| 5 | CN2I_N | I | Magnetic valve |
|
| 6 | GND | - | |
|
| 7 | CNX_DETECT | O | Whether detect magnetic valve connects | |
| 8 | +30V | - | + |
|
| 9 | CN2_OUT | O | Magnetic valve |
|
| 10 | CN1_OUT | O | Magnetic valve |
|
| 11 | +12V | - | + |
|
| 12 | K3_OUT | | Relay K | 3 |
| 13 | K2_OUT | | Relay K | 2 |
| 14 | K1_OUT | | Relay K | 1 drive output |
The pin function table of table one the first chip IC 1
The pin function table of table two the second chip IC 2
By to total 11 road circuit in Fig. 7 to Figure 10, table one, table two and the above-mentioned peripheral control module 2 to this, just can very cheer and bright finding out, how powerful function for the first chip IC 1 and the second chip IC 2 have, just well imagined, also can very clearly understand the size dimension of the circuit board that has saved whole control system, and required raw material.Because the simplification of circuit, the performance for circuit also just increases so, and fault rate has finally also just improved and greatly improved production efficiency also with regard to corresponding reduction.
The above technical scheme that the utility model embodiment is provided is described in detail, used specific case herein principle and the embodiment of the utility model embodiment are set forth, the explanation of above embodiment is only applicable to help to understand the principle of the utility model embodiment; Simultaneously, for one of ordinary skill in the art, according to the utility model embodiment, all will change on the specific embodiment and range of application, in sum, this description should not be construed as restriction of the present utility model.
Claims (5)
1. the control system of a constant temp gas water heater is characterized in that:
Comprise main control module and peripheral control module, described main control module links to each other with peripheral control module electricity;
Described peripheral control module is integrated by the first chip IC 1 and the second chip IC 2 respectively.
2. the control system of constant temp gas water heater according to claim 1 is characterized in that:
Described peripheral control module comprises 3 way solenoid valve drive circuits, No. 1 proportioning valve PWM regulating circuit, 3 road relay drive circuits and testing circuit.
3. the control system of constant temp gas water heater according to claim 2 is characterized in that:
Described testing circuit comprises 3 way solenoid valve testing circuits and 1 road flame detection circuit.
4. the control system of constant temp gas water heater according to claim 3 is characterized in that:
Described the first chip IC 1 is integrated 2 way solenoid valve drive circuits, 2 way solenoid valve testing circuits and 3 road relay drive circuits.
5. the control system of constant temp gas water heater according to claim 3 is characterized in that:
Described the second chip IC 2 is integrated 1 way solenoid valve drive circuit, No. 1 proportioning valve PMW regulating circuit, 1 way solenoid valve testing circuit and 1 road flame detection circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220257179 CN202709476U (en) | 2012-05-31 | 2012-05-31 | Control system of constant-temperature gas water heater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220257179 CN202709476U (en) | 2012-05-31 | 2012-05-31 | Control system of constant-temperature gas water heater |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202709476U true CN202709476U (en) | 2013-01-30 |
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ID=47589770
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220257179 Expired - Fee Related CN202709476U (en) | 2012-05-31 | 2012-05-31 | Control system of constant-temperature gas water heater |
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| Country | Link |
|---|---|
| CN (1) | CN202709476U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103453664A (en) * | 2012-05-31 | 2013-12-18 | 广东百威电子有限公司 | Control system of thermostatic gas water heater |
| CN106369212A (en) * | 2016-11-30 | 2017-02-01 | 无锡华润矽科微电子有限公司 | Electromagnetic valve drive circuit for fuel gas system |
-
2012
- 2012-05-31 CN CN 201220257179 patent/CN202709476U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103453664A (en) * | 2012-05-31 | 2013-12-18 | 广东百威电子有限公司 | Control system of thermostatic gas water heater |
| CN106369212A (en) * | 2016-11-30 | 2017-02-01 | 无锡华润矽科微电子有限公司 | Electromagnetic valve drive circuit for fuel gas system |
| CN106369212B (en) * | 2016-11-30 | 2018-12-04 | 无锡华润矽科微电子有限公司 | A kind of driving circuit for electromagnetic valve for gas burning system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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: 20130130 Termination date: 20210531 |