CN201527108U

CN201527108U - Heat pump water heater controller

Info

Publication number: CN201527108U
Application number: CN200920219499XU
Authority: CN
Inventors: 朱鸽
Original assignee: Individual
Current assignee: Individual
Priority date: 2009-10-16
Filing date: 2009-10-16
Publication date: 2010-07-14
Anticipated expiration: 2019-10-16

Abstract

The utility model relates to a heat pump water heater controller, which comprises a control module, an outdoor unit sensor, a water tank sensor, an A/D conversion module and a relay driving module, wherein the control module takes a singlechip as a core; the outdoor unit sensor is used for detecting a defrosting temperature; the water tank sensor is used for detecting the temperature of water inside the water tank; the relay driving module comprises relays for controlling the startup and the shutdown of a control fan, a compressor as well as a four-way valve, wherein the control module is used for collecting and processing temperatures of the outdoor unit sensor and the water tank sensor, the water tank temperature can be set through a button input module according to different time periods, control signals are output to the relay driving module so as to control the startup and the shutdown of the fan, the compressor and the four-way valve and achieve the automatic switching between a warm keeping state and a heating state, the controller carried out core control by adopting the singlechip, the accuracy is higher, the temperature can be displayed visually, and meanwhile, heating is performed according to different time periods and using requirements, thereby achieving the effect of saving electrical energy; and the utility model is worth to be popularized and applied.

Description

Controller of heat pump water heater

Technical field

The utility model relates to a kind of controller, especially a kind of controller of heat pump water heater.

Background technology

The water heater product of generally selling on China water heater market is gas heater, electric heater and solar water heater etc. at present.Wherein, in use then there is serious potential safety hazard in gas heater, and report is arranged during the annual poisoning that causes because of the use of gas heater; Electric heater is a cost with the electric power that consumes a large amount of costlinesses, is unfavorable for the reasonable utilization of the energy; Conventional solar water heater can not be produced hot water overcast and rainy, can only rely on electrical heating to remedy the deficiency of solar energy, thereby the wasting phenomenon that also has the energy particularly uses this water heater very uneconomical at some overcast and rainy many southern areas.So, a kind of novel water heater based on the heat pump cycle principle begins to show up prominently on water heater market, it is to utilize evaporimeter to absorb heat energy (solar energy, air or water etc.) from surrounding environment, and by condenser heat energy is discharged into and goes in the water, thereby realizes the production of hot water.That Teat pump boiler has is energy-efficient, environmental protection, advantage such as safe and reliable, can round-the-clockly use.Energy crisis is just more and more seriously restricting the fast development of Chinese national economy; the seriousness of just can let us recognizing this problem from " severe power shortage " of outburst in all parts of the country in recent years fully aware ofly; therefore; the development energy-conserving product is that country supports, the act of common people's benefit, has wide development and application prospect.

Various controllers have been drawn in the development of Teat pump boiler, and what have compares with leaving water temperature according to temperature required, controls pump rotary speed by frequency converter and reduces or the rising flow of inlet water.Major part all is to keep constant temperature, and the domestic water peak generally has only three time periods, if keep constant temperature to waste energy always, and prior art middle controller major part all uses analog circuit and digital circuit to form, accuracy is not high, the intuitive display degree is not enough, and the control function ratio is more single, is difficult to bring into play the better effect of Teat pump boiler.

The utility model content

The purpose of this utility model is to provide a kind of employing singlechip technology to design and can set according to different time sections, thereby heating of Teat pump boiler controlled to save the controller of the energy.

For achieving the above object, the technical scheme that the utility model adopted is: a kind of controller of heat pump water heater, described Teat pump boiler comprises and is arranged on outdoor outer machine, is arranged on blower fan, compressor, the cross valve in the outer machine and is arranged on indoor water tank, described controller is used to control the duty of Teat pump boiler, this controller comprises

Control module, described control module core is a single-chip microcomputer;

Outer machine sensor, it is arranged on the described outer machine, is used to detect the defrost temperature;

Tank sensor, it is arranged in the water tank, is used to detect water temperature in the water tank;

The A/D modular converter, its input and the described outer machine sensor output that is connected with tank sensor is connected with an input of described control module, and the analog signal conversion that described A/D modular converter is used for each sensor output is to be suitable for the data signal that control module receives;

Relay driving module, described relay driving module comprises the relay that control blower fan, compressor and cross valve open and close, one end of described relay driving module and an output of described control module are electrically connected, and each relay of described relay driving module electricly connects mutually with corresponding blower fan, compressor, cross valve;

Keyboard input module, described keyboard input module is connected with the input of control module, is used for the user water heater temperature's temperature and inner parameter are set;

Display module, the output of itself and control module is electrically connected, and is used to carry out the real-time demonstration of temperature and time and the demonstration of controller state;

The temperature of external machine sensor of described control module and tank sensor is gathered and is handled, according to different time sections by the setting of keyboard input module to water tank temperature, thereby the startup that outputs control signals to relay driving module control blower fan, compressor and cross valve with close, realize that heat-exchanger pump carries out the conversion of keeping warm mode and heated condition automatically.

Further, the alarm module that it also comprises the exhaust sensor that is used to gather effluent air temp that is arranged on exhaust outlet of compressor, is electrically connected with an output of control module, the output of described exhaust sensor is connected with an input of A/D modular converter, when collecting delivery temperature, control module is higher than setting value, it sends control signal to alarm module and sends information warning to drive alarm module, and drives display module simultaneously and carry out alarm indication.

Also be connected with the high-voltage switch gear amount, the low tension switch amount that are used to detect its internal pressure on the described heat pump water heater system loop, described high-voltage switch gear amount, low tension switch amount output and control module are electrically connected, when described control module detects the pressure signal of high-voltage switch gear amount, low tension switch amount output when unusual, it sends control signal driving alarm module to alarm module and sends information warning, and the driving display module carries out alarm indication.

Described controller also comprises the clock module that is connected with described control module output, and described clock module adjusts according to the information of the key-press module input time of carrying out and the period is provided with.

Because the employing of technique scheme, the utility model compared with prior art, have the following advantages: the utility model controller carries out core control by adopting single-chip microcomputer, accuracy is higher, displays temperature directly perceived, heat at times according to the needs that use simultaneously, thereby reach the effect of saving electric energy, be worthy of popularization.

Description of drawings

Fig. 1 realizes theory diagram for the utility model controller of heat pump water heater;

Wherein: 1, Teat pump boiler; 11, outer machine; 12, blower fan; 13, compressor; 14, cross valve; 15, water tank; 16, high-voltage switch gear amount; 17, low tension switch amount;

2, controller; 21, control module; 22, outer machine sensor; 23, tank sensor; 24, A/D modular converter; 25, relay driving module; 26, keyboard input module; 27, display module; 28, exhaust sensor; 29, alarm module; 30, power module; 31, clock module;

The specific embodiment

Controller of heat pump water heater as shown in Figure 1, it comprises power module 30, control module 21, be arranged on the outer machine sensor 22 on the outer machine of Teat pump boiler, be arranged on the exhaust sensor 28 of Teat pump boiler blower fan exhaust outlet, tank sensor 23, A/D modular converter 24, relay driving module 25, display module 27, keyboard input module 26, alarm module 29 and clock module 31, wherein, power module 30 is used for voltage transitions that the external world is provided provides required voltage for stable low-voltage DC and for entire controller, control module 21 mainly is made up of single-chip microcomputer and its peripheral circuit, the employing single-chip microcomputer is able to programme, thereby makes controller intelligent more.

The input of A/D modular converter 24 respectively with outer machine sensor 22, exhaust sensor 28 and tank sensor 23 outputs are connected, the output of A/D modular converter 24 and control module 21 inputs are electrically connected, outer machine sensor 22 is used to gather the defrost temperature, after being converted to data signal by A/D modular converter 24, the temperature signal of gathering inputs to single-chip microcomputer, exhaust sensor 28 is used to gather the temperature of exhaust outlet of compressor, input to single-chip microcomputer after the temperature signal of gathering is converted to data signal equally by A/D modular converter 24, tank sensor 23 is arranged in the indoor water tank, gather by the temperature in 23 pairs of water tanks of tank sensor, and by being sent to single-chip microcomputer after the conversion of A/D modular converter.

Relay driving module 25 comprises the relay that is respectively applied for control blower fan, compressor and cross valve open and close, the unlatching of single-chip microcomputer by outputing control signals to relay driving module 25 control corresponding relays be with closed, thus the work of control appliance with stop to realize temperature controlling.

Keyboard input module 26 inputs and control module 21 are electrically connected, and the user can be according to using needs to set by the heat temperature and the inner parameter etc. of 26 pairs of Teat pump boilers of keyboard input module; Simultaneously, the user can adjust by the heating period of 31 pairs of Teat pump boilers of clock module.

Display module 27 adopts liquid crystal display, guarantees the clear directly perceived of demonstration;

Alarm module 29 is electrically connected with an output of control module 21, alarm module 29 can adopt the buzzer rear indicator light, when single-chip microcomputer 29 detects the Teat pump boiler operation irregularity, control relay driver module 25 stops to heat of water heater on the one hand, on the other hand will be by alarm module 29 output alarm information, to remind the user.

Simultaneously, in the present embodiment, control module 21 also respectively with the heat pump water heater system loop in be used to detect internal pressure high-voltage switch gear amount 16 and low tension switch amount 17 electricly connect mutually, to detect system works unusual when described high-voltage switch gear amount 16 or low tension switch amount 17, to trigger single-chip microcomputer, the single-chip microcomputer received signal drives alarm module 29 and carries out alarm prompt.

The concrete course of work is as follows: under automatic mode or economic model working hour state, the water temperature that detects in the water tank when tank sensor 23 is lower than the temperature that configures, single-chip microcomputer sends instruction and allows the relay adhesive of 25 corresponding blower fans of relay driving module and compressor, in order to protect compressor, control compressor delayed startup, and, outside single-chip microcomputer is also at first judged when beginning to heat machine sensor 23 detected outside the machine temperature whether be lower than the defrost start-up temperature, if be lower than the defrost start-up temperature, the defrost timer picks up counting, when reaching defrost, clocking value starts defrost during start-up time, the relay adhesive that Single-chip Controlling is connected with cross valve, thereby unlatching cross valve, and close blower fan, then remove timer if be higher than the defrost start-up temperature in timing course China and foreign countries machine temperature, the machine temperature is reduced to the timing that starts anew when following of defrost start-up temperature outside next time, treat to restart after defrost finishes and heat, thereby enter heated condition, in this process, outer machine sensor, exhaust sensor and tank sensor still are sent to single-chip microcomputer with the temperature information of gathering in real time, single-chip microcomputer carries out real time monitoring to the duty of Teat pump boiler, the temperature that detects when cooling-water temperature sensor reaches setting value, and then Single-chip Controlling stops the operation of compressor; When single-chip microcomputer detects temperature that exhaust sensor gathers when too high, it will drive alarm module and alarm, and control water heater and stop to heat, and above-mentioned delivery temperature point can be provided with.Treat that the external alarm signal recovers just often, can automatically restore to normal operating conditions.If but occur twice external alarm in one hour continuously, then system lock fixes on alarm status, need to recover after the artificial shutdown, this number of times and time can be provided with by the internal system parameter, do not alarm within external alarm three minutes after the compressor operate as normal and in the defrost process and within defrost three minutes after finishing.

The foregoing description only is explanation technical conceive of the present utility model and characteristics; its purpose is to allow the personage who is familiar with this technology can understand content of the present utility model and enforcement according to this; can not limit protection domain of the present utility model with this; all equivalences of doing according to the utility model spirit essence change or modify, and all should be encompassed within the protection domain of the present utility model.

Claims

1. controller of heat pump water heater, described Teat pump boiler (1) comprises and is arranged on outdoor outer machine (11), is arranged on blower fan (12), compressor (13), the cross valve (14) in the outer machine (11) and is arranged on indoor water tank (15), described controller is used to control the duty of Teat pump boiler (1), it is characterized in that: this controller (2) comprises

Control module (21), described control module (21) core is a single-chip microcomputer;

Outer machine sensor (22), it is arranged on the described outer machine (11), is used to detect the defrost temperature;

Tank sensor (23), it is arranged in the water tank (15), is used to detect water temperature in the water tank;

A/D modular converter (24), its input and described outer machine sensor (22) output that is connected with tank sensor (23) is connected with an input of described control module (21), and described A/D modular converter (24) is used for analog signal conversion with each sensor output for being suitable for the data signal that control module (21) receives;

Relay driving module (25), described relay driving module (25) comprises the relay that control blower fan (12), compressor (13) and cross valve (14) open and close, one output of one end of described relay driving module (25) and described control module (21) is electrically connected, and each relay of described relay driving module (25) electricly connects mutually with corresponding blower fan (12), compressor (13), cross valve (14);

Keyboard input module (26), described keyboard input module (26) is connected with the input of control module (21), is used for the user water heater temperature's temperature and inner parameter are set;

Display module (27), the output of itself and control module (26) is electrically connected, and is used to carry out the real-time demonstration of temperature and time and the demonstration of controller state;

The temperature of external machine sensor (22) of described control module (21) and tank sensor (23) is gathered and is handled, pass through the setting of keyboard input module (26) according to different time sections to water tank temperature, output control signals to relay driving module (25) thus the startup of control blower fan, compressor and cross valve with close, realize that heat-exchanger pump carries out the conversion of keeping warm mode and heated condition automatically.

2. controller of heat pump water heater according to claim 1, it is characterized in that: it also comprises the exhaust sensor that is used to gather effluent air temp (28) that is arranged on compressor (13) exhaust outlet, the alarm module (29) that is electrically connected with an output of control module (21), the output of described exhaust sensor (28) is connected with an input of A/D modular converter (24), when collecting delivery temperature, control module (21) is higher than setting value, it sends control signal to alarm module (29) and sends information warning to drive alarm module (29), and drives display module (27) simultaneously and carry out alarm indication.

3. controller of heat pump water heater according to claim 2, it is characterized in that: also be connected with the high-voltage switch gear amount (16) that is used to detect its internal pressure on the described heat pump water heater system loop, low tension switch amount (17), described high-voltage switch gear amount (16), low tension switch amount (17) output and control module (21) are electrically connected, when described control module (21) detects high-voltage switch gear amount (16), when the pressure signal of low tension switch amount (17) output is unusual, it sends control signal driving alarm module (29) to alarm module (29) and sends information warning, and driving display module (27) carries out alarm indication.

4. controller of heat pump water heater according to claim 1 and 2, it is characterized in that: described controller also comprises the clock module (31) that is connected with described control module (21) output, and described clock module (31) adjusts according to the information of key-press module (3) the input time of carrying out and the period is provided with.

5. controller of heat pump water heater according to claim 1 and 2, it is characterized in that: the machine temperature is lower than the defrost start-up temperature outside control module (21) detects, described control module (21) control cross valve (14) is opened, blower fan (12) cuts out, and treats to start after defrost finishes to heat.

6. controller of heat pump water heater according to claim 1 is characterized in that: described display module (27) adopts liquid crystal display.