CN205980352U - Display device of heat supply hydrophone - Google Patents

Abstract

The utility model provides a can visually well show the display device of heat supply hydrophone who supplies hydrothermal temperature. In the past, the deviation that has luminance between a plurality of light sources. The utility model discloses a display device of heat supply hydrophone possesses: a plurality of light sources, these a plurality of light sources are arranged with mode that can display data, time instrumentation portion, accumulation time of lighting of its each light source of instrumentation, the storage part, its luminance information corresponding with the accumulation time of lighting of preserving each light source, and luminance change circuit, when lighting the more than one light source in order show to supply hot water temperature, this luminance change circuit generates luminance change signal, and this luminance change signal is arranged in the luminance change of the more than one light source luminance for the corresponding luminance information decision of the biggest accumulation time of lighting of the accumulation time of lighting of the more than one light source based on with the instrumentation play.

Description

The display device of hot water supply device

Technical field

This utility model is related to a kind of display device of hot water supply device, more particularly to a kind of display dress of change brightness Put.

Background technology

The brightness of LED changes over and deteriorates, therefore by lighting LED (Light Emitting Diode：Luminous Diode) come in the display device of display information it is desirable to the deterioration to this brightness improves.

In order to tackle the problem of above-mentioned deterioration in brightness, such as patent documentation 1 (Japanese Unexamined Patent Publication 2013-97941 publication) Display device the lighting time of LED is added up, based on deterioration in brightness characteristic and carry out cumulative obtained by lighting time To determine brightness, and LED is controlled to be lighted with the brightness being determined.

Patent documentation 1：Japanese Unexamined Patent Publication 2013-97941 publication

Utility model content

Utility model problem to be solved

The display device of hot water supply device shows temperature of supplying hot water etc. using 7 section LED.Situation in displays temperature Under, when producing the deviation of brightness between 7 section LED with above-mentioned time change, shown temperature visual Property reduce.However, patent documentation 1 does not have the open structure for multiple LED combination are come displays temperature, therefore with patent literary composition The method offering 1 can not tackle this problem.

Therefore, the purpose of this utility model is to provide a kind of confession of the temperature that visual can show supplying hot water well The display device of water heater.

For solution to problem

The display device of the hot water supply device of the first aspect of this utility model is characterised by possessing：Multiple light sources, this is many Individual light source is can arrange in the way of display digit；Time measurement unit, it measures the accumulation lighting time of each light source；Storage part, Its preserve each light source with accumulation lighting time corresponding monochrome information；And brightness change circuit, in order to show heat supply Coolant-temperature gage and during by more than one light source igniting, this brightness change circuit evolving brightness change signal, signal is changed in this brightness For by the brightness of more than one light source be changed to based on the accumulation lighting time of the more than one light source measuring in Maximum the accumulation brightness that determined of lighting time corresponding monochrome information.

Preferably, in the display device of the hot water supply device of second aspect, the brightness of the display device of first aspect becomes The signal that more circuit evolving is used for the time that change supplies electric current to more than one light source is used as brightness change signal.

Preferably, in the display device of the hot water supply device of the third aspect, the time meter of the display device of second aspect Survey portion is directed to each light source, and the time of accumulation supply electric current is used as accumulating lighting time.

Preferably, in the display device of the hot water supply device of fourth aspect, the brightness of the display device of second aspect becomes More circuit evolving has to make with the pulse signal of the maximum accumulation corresponding dutycycle of lighting time corresponding monochrome information Change signal for brightness.

Preferably, in the display device of the hot water supply device of the 5th aspect, the time meter of the display device of fourth aspect Survey portion is directed to each light source, when the time of the cycle according to pulse signal and dutycycle accumulation supply electric current is used as accumulation and lights Between.

The effect of utility model

According to this utility model, the temperature of supplying hot water visual can be shown well.

Brief description

Fig. 1 is the structure chart of the system involved by embodiment.

Fig. 2 is the structure chart of the remote control 2 of Fig. 1.

Fig. 3 is the structure chart of the time management table 325 involved by embodiment.

Fig. 4 is the structure chart of the table TB involved by embodiment.

Fig. 5 is the structure chart of the LED driver 35 involved by embodiment.

Fig. 6 (A)～Fig. 6 (E) is the figure of the dutycycle that the pwm signal involved by embodiment is described.

Fig. 7 is the process chart involved by embodiment.

Description of reference numerals

1：Hot water supply device；2：Remote control；4：Order wire；5：Pipe arrangement；6：Bathtub；7：Shower；8：Operating portion；9：LED group； 9A：Region；10：Display part；12：Plug；13：Power line；21：Control unit；30：Timer；32：Storage part；33：Input and output Interface；34：Measurement unit；34A：Pwm circuit；35：LED driver；81：Operating switches；82：Switch；95：Faucet；100：Shell Body；311：Control signal；321：ROM；323：RAM；324：Temperature information；325：Time management table；325A：Identifier；325B： Accumulation lighting time；341：Pwm signal；T：Cycle；TB1：Time slice；TB2：Monochrome information；Tr：Transistor；TB：Table.

Specific embodiment

To explain embodiment of the present utility model referring to the drawings.Additionally, the same or equivalent portion in figure Minute mark notes identical labelling, does not repeat its explanation.

<Overall structure>

Fig. 1 is the structure chart of the system involved by embodiment of the present utility model.In FIG, heat supply is summarily shown The connection status with the remote control 2 being equivalent to its operation device for the hydrophone 1 and the heat supply water route of hot water supply device 1.Remote control 2 There is the circuit portion of " display device " constituting hot water supply device 1.

Remote control 2 can be arranged on the wall in (such as kitchen, room etc.) in bathroom or outside bathroom or hot water supply device 1 Housing etc..Remote control 2 is connected with hot water supply device 1 by wired or wireless order wire 4.Hot water supply device 1 is by for heat supply The pipe arrangement 5 of water and be connected with bathtub 6 or shower 7 etc..The pipe arrangement 5 of hot water supply device 1 is also connected with the faucet 95 in kitchen.Separately Outward, via plug 12 and power line 13 to hot water supply device 1 supply electric power.

Remote control 2 possesses housing 100.Possess operating portion 8 and display part 10, wherein, this operation on the surface of housing 100 Portion 8 includes the multiple switch that user can carry out push, and this display part 10 has including the multiple LED as light source (Light Emitting Diode：Light emitting diode) LED group 9.Display part 10 includes showing the region 9A of heat supply coolant-temperature gage. Additionally, display part 10 illustrates of the information of the state as expression hot water supply device 1 for the heat supply coolant-temperature gage, but the information of display It is not limited to heat supply coolant-temperature gage.For example, the information of display includes current time, the hot water amount supplying to bathtub 6 etc..

Region 9A includes the LED group 9 with the group (14 LED altogether) of two groups of 7 LED.In display part 10, LED quilt The combination of LED being arranged as passing through to light in the 9A of region can assume information (character that includes including digital, symbol etc.).This Outward, the number of the LED of display part 10 is not limited to 14.In the following, LED is also referred to section.

Operating portion 8 includes operating switches 81 and switch 82, wherein, grasps to switch the operating condition of hot water supply device 1 Make this operating switches 81, in order to set the temperature of supplying hot water or supply the quantity delivered of hot water to bathtub 6 and operate this switch 82.This Outward, the species of the switch of operating portion 8 is not limited to these species.

<The structure of remote control 2>

Fig. 2 is the structure chart of the remote control 2 of Fig. 1.With reference to Fig. 2, in the circuit substrate of the inside of the housing 100 of remote control 2 Control unit 21 is possessed on (not shown).In addition, remote control 2 possesses the operating portion 8 being connected with control unit 21 and display part 10.

Control unit 21 is equivalent to microprocessor.Specifically, including being equivalent to the control circuit that remote control 2 is controlled CPU (Central Processing Unit：CPU) 31 and be connected with CPU 31 timer 30, storage Portion 32, input/output interface 33 and measurement unit 34.Timer 30 includes oscillating circuit (not shown).Timer 30 passes through to vibration The output signal of circuit carries out dividing the clock to generate the fixed cycle, and the clock being generated is exported CPU 31 and meter Survey portion 34.Measurement unit 34 is directed to the time that each LED accumulation of LED group 9 is lighted.The accumulation side of the time of measurement unit 34 described below The detailed content of method.

Storage part 32 includes ROM (Read Only Memory：Read only memory) 321 and RAM (Random Access Memory：Random access memory) 323 etc. non-volatile or the memorizer of volatibility.ROM 321 has for preserving supplying hot water The program area of the control program of device 1 and remote control 2.Control program is started and carried out by CPU 31.In addition, protecting in ROM 321 There is table TB, accumulation lighting time is registered in this table TB in association with the brightness of LED.Temperature letter is preserved in RAM 323 Breath 324 and time management table 325, wherein, temperature information 324 expression is set to hot water supply device 1 by the operation of operating portion 8 Heat supply coolant-temperature gage, was registered in this time management table 325 for the accumulation lighting time that each LED measures.

When the switch 82 of operating portion 8 is pressed, CPU 31 receives the temperature from this switch via input/output interface 33 The setting signal of degree.The signal receiving is converted to above-mentioned temperature information 324 by CPU 31, and by the temperature information after conversion 324 are saved in RAM 323.In addition, CPU 31 generate be shown in for the temperature information 324 making to be saved in RAM 323 aobvious Show the control signal 311 (aftermentioned) in portion 10, and this control signal 311 is exported input/output interface 33 and measurement unit 34.

Control signal 311 includes representing that the section of the identifier of more than one section to be lighted in LED group 9 is specified Signal and the luminance signal indicating the brightness lighted.In embodiments, the pulse signal by having fixing cycle T drives Dynamic LED.Luminance signal represents the dutycycle (Duty Ratio, the ratio of " H " and " H+L " of pulse width) of this pulse signal.CPU 31 this dutycycle of decision, its determining method described below.In addition, CPU 31 specifies signal to be based on and assume temperature to generate section The numeral of the temperature of degree information 324 is determining more than one section to be lighted.Between numeral and the group of section to be lighted Corresponding relation be pre-stored in ROM 321.CPU 31 can determine according to this corresponding relation and temperature information 324 The corresponding group including more than one section of temperature.The group of the section being determined is rendered as the identifier of the LED of LED group 9 Group.The group of the identifier based on the section being determined for the CPU 31 come generate above-mentioned section specify signal.

The LED driver 35 of input/output interface 33 according to the control signal 311 from CPU 31, by having based on bright The pulse signal of the dutycycle of degree signal drives each LED being specified by the specified signal of section in LED group 9.Thus, in LED group 9 The more than one section (LED) for assuming heat supply coolant-temperature gage light with based on the brightness of luminance signal (dutycycle).

<The measuring method of time>

The method that measurement unit 34 is measured with the time (that is, the time lighted) supplying electric current to each LED illustrates.Supplying In water heater 1, carried out in a period of making operation plays and turned off till operation from operating switches 81, display part 10 Display heat supply coolant-temperature gage.Measurement unit 34 is configured to including timer circuit.When via input/output interface 33 from operating switches When signal is connected in 81 inputs, timer circuit starts timing, and when inputting cut-off signal, timer circuit terminates timing.

Measurement unit 34 when implementing timing, specify represented by signal by the section for the control signal 311 from CPU 31 Each LED, the dutycycle represented by luminance signal according to control signal 311, the cycle T of pulse signal and be derived from timer 30 clock comes to the time supplying electric current, i.e. the pulse width of " H " of pulse signal is added up (accumulation) and measures.Meter Survey portion 34 when terminating timing (operating switches 81 are turned off operation) every time, by the time measuring for each LED with should The identifier of LED exports CPU 31 in association.

<The structure of time management table 325>

Fig. 3 is the structure chart of the time management table 325 involved by embodiment.It is directed to LED group 9 in time management table 325 Each LED be registered with this LED identifier 325A and this LED accumulation lighting time 325B.CPU 31 is to time management table 325 In accumulation lighting time 325B corresponding with LED identifier 325A accumulation (plus) from measurement unit 34 output with each LED's The measurement time that identifier is associated.Thus, the accumulation lighting time 325B in time management table 325 is managed as representing all the time Up-to-date value.In embodiments, " time measurement unit " is configured to including measurement unit 34 and time management table 325.

<The structure of table TB>

Fig. 4 is the structure chart of the table TB involved by embodiment.With reference to table TB with according to registration in time management table 325 Accumulation lighting time determines that LED's lights brightness.When being registered with corresponding multiple with above-mentioned accumulation lighting time in table TB Between segmentation TB1 and monochrome information TB2 being associated with each time slice.Time slice TB1 for example include more than T1 hour and Less than T2 hour (wherein, T2>T1 segmentation), T2 hour are less than T3 hour (wherein, T3>T2 segmentation) ..., T (n- 1) hour is less than T (n) hour (wherein, T (n)>T (n-1)) segmentation.Monochrome information TB2 represents the pulse driving LED Dutycycle (the position of signal：%).In table TB, pay close attention to LED and change over and deterioration in brightness this point, thus by brightness Information TB2 dutycycle (D1, D2 ..., Dn) longer, the then duty that is registered as the associated time represented by time slice TB1 Bigger (the D1 of value of ratio<D2<···<Dn).Additionally, obtain the data of table TB in advance by experiment etc..

<The structure of pwm circuit>

Fig. 5 is the structure chart of the LED driver 35 involved by embodiment.With reference to Fig. 5, LED driver 35 includes PWM (Pulse Width Modulation：Pulsewidth modulation) the circuit 34A and terminal X0 being connected with pwm circuit 34A, X1, X2, X3、···X13.Each terminal X0, X1, X2, X3, X13 via transistor Tr and LED group 9 each LED (LED 0A, LED 1A, LED 2A, LED 13A) connect respectively.

In the present embodiment, LED is, for example, White LED.Can also by R (red), G (green) and B (blue) this The combination of the LED of three kinds of colors is constituting White LED.

Pwm circuit 34A according to the control signal 311 from CPU 31 section specify signal come from terminal X0, X1, X2, More than one terminal is selected in X3 X13.In addition, pwm circuit 34A is according to the luminance signal next life of control signal 311 Become pwm signal 341, and the pwm signal being generated 341 is exported selected more than one terminal.

Pwm signal 341 is that have fixing cycle T and have (for example straight with the size of the luminance signal of control signal 311 Flow horizontal) corresponding pulse width dutycycle brightness change signal.When from pwm circuit 34A output pwm signal 341, warp From with LED group 9 selected by the transistor Tr that connects of the more than one terminal that goes out and supply electric current to corresponding LED.LED Lighted with the brightness that the magnitude of current supplying with the dutycycle according to pwm signal 341 is corresponding.Additionally, with unselected terminal The LED connecting does not light (holding OFF state).

In the present embodiment, change region 9A the brightness of display " brightness change circuit " include recited above Pwm circuit 34A.

<The change of brightness>

Fig. 6 (A)～Fig. 6 (E) is the figure that the dutycycle of pwm signal 341 involved by embodiment is described.Recited above The dutycycle of pwm signal 341 is bigger, and that is, the shared ratio in the cycle T of pwm signal of level " H " is bigger, then LED is supplied The magnitude of current bigger, brightness is higher.Thus, the dutycycle with Fig. 6 (A) is compared with 10% situation, in the dutycycle of Fig. 6 (B) For brightness can be improved in the case of 30%.Similarly, it is compared with 50% situation with the dutycycle of Fig. 6 (C), Fig. 6's (D) In the case that dutycycle is 90%, it is possible to increase brightness.In the case that the dutycycle of Fig. 6 (E) is 100%, the brightness energy of LED Enough become maximum.Additionally, when the dutycycle of pwm signal is 0%, LED does not light (extinguishing).Can also be set to above-mentioned The LED output duty cycle that unselected terminal connects is 0% pwm signal.

<Process chart>

Fig. 7 is the process chart involved by embodiment.Storage part is pre-reserved to based on the program of this flow chart In 32.CPU 31 reads this program from storage part 32, and controls each portion by the read-out program of execution.Stream with reference to Fig. 7 Journey figure is illustrating the adjustment of the brightness of LED group 9.

CPU 31 judges that the operation content receiving from operating portion 8 via input/output interface 33 indicates whether to operate first Operation start operation (making operation) (step S3) of switch 81.It is judged to that operation content does not indicate that operation start is grasped in CPU 31 When making ("No" in step S3), repeat the process of step S3.

When CPU 31 is judged to that operation content represents operation start operation (making operation) ("Yes" in step S3), from RAM 323 reads temperature information 324 (step S5).CPU 31 determines to be lighted more than one according to temperature information 324 LED, and generate the specified signal of the section of each identifier of the more than one LED that expression is determined.In addition, CPU 31 obtains being somebody's turn to do Maximum (being also referred to as cumulative maximum lighting time below) (step in the accumulation lighting time of more than one LED to be lighted Rapid S7).Specifically, the identifier based on this more than one LED for the CPU 31 is come search time management table 325.CPU 31 leads to Cross search come read from time management table 325 corresponding with the identifier 325A consistent with the identifier of this more than one LED Accumulation lighting time 325B.When CPU 31 obtains (determination) maximum accumulation from read-out accumulation lighting time 325B and lights Between.

CPU 31 determines the accumulation lighting time corresponding brightness (step S9) with the maximum getting.Specifically, CPU 31 are based on cumulative maximum lighting time searches for table TB.The result based on search for the CPU 31 is come multiple time slices of decision table TB Time slice corresponding in TB1, cumulative maximum lighting time, and read from table TB and be associated with the time slice being determined Monochrome information TB2.

Pwm circuit 34A generates and exports the pwm signal 341 (step S11) based on the control signal 311 from CPU 31. Specifically, CPU 31 generates, based on monochrome information TB2 reading from table TB, the luminance signal that instruction determines brightness.Above-mentioned The section that control signal 311 includes above-mentioned generation specifies signal and luminance signal.Pwm circuit 34A generates has control signal The pwm signal 341 of the dutycycle indicated by 311 luminance signal, specifies represented by signal to the section of control signal 311 Individual above LED output pwm signal 341.Thus, LED more than one of LED group 9 of display part 10 lights, by lighting LED combination showing heat supply coolant-temperature gage (step S13).

When LED group 9 is lighted, the section that measurement unit 34 is directed to control signal 311 specifies each LED meter represented by signal The measuring point bright time (step S15).

CPU 31 judges whether to receive operating end operation (the opening operation) (step of operating switches 81 from operating portion 8 S17).When being judged as being not received by operating end operation ("No" in step S17), return to step S11.

When CPU 31 is judged as receiving operating end operation (opening operation) ("Yes" in step S17), will be directed to The accumulation lighting time of each LED is saved in (step S19) in time management table 325.Specifically, when receive operating terminate behaviour When making (opening operation), measurement unit 34 terminates to measure, by the identifier measuring time and this LED for each LED in association Export CPU 31.CPU 31 is corresponding to same consistent with this identifier LED identifier 325A in time management table 325 tired Long-pending lighting time 325B accumulation (plus) measurement time of being associated from the identifier with each LED of measurement unit 34 output.Thus, The accumulation lighting time 325B of each LED lighting in step S13 is updated.

CPU 31 to generate instruction with the brightness at the end of operating according to the operating end operation (opening operation) receiving The control signal 311 that the brightness of such as extinguishing is shown, and this control signal 311 is exported display part 10 (step S21). Pwm circuit 34A to generate pwm signal 341 (dutycycle=0%) according to control signal 311, and this pwm signal 341 is exported Display part 10.Thus, the LED of region 9A extinguishes (step S23).

Additionally, in embodiments, the light source being set to display part 10 includes LED, but is not limited to LED, for example Can also be LCD (Liquid Crystal Display：Liquid crystal display) or fluorescent tube.

It is believed that embodiment of disclosure in all respects all be illustrate and not limited.This utility model Scope not illustrated by above-mentioned explanation, but illustrated by utility model mandate claims it is intended that including new with practicality Being had altered in the impartial meaning of type mandate claims and scope.

Claims (5)

1. a kind of display device of hot water supply device is it is characterised in that possess：

Multiple light sources, the plurality of light source is can arrange in the way of display digit；

Time measurement unit, it measures the accumulation lighting time of each described light source；

Storage part, it preserves the accumulation lighting time corresponding monochrome information with each described light source；And

Circuit is changed in brightness, in order to show heat supply coolant-temperature gage and during by more than one light source igniting, circuit is changed in this brightness Generate brightness change signal, this brightness change signal is used for being changed to be based on and measurement by the brightness of one above light source The accumulation lighting time corresponding monochrome information of the maximum in the accumulation lighting time of the one above light source going out is determined Fixed brightness.

2. hot water supply device according to claim 1 display device it is characterised in that

Described brightness is changed circuit evolving and is used for the signal of the time that change supplies electric current to one above light source to make Change signal for described brightness.

3. hot water supply device according to claim 2 display device it is characterised in that

Described time measurement unit is directed to each described light source, and the time of accumulation supply electric current is used as described accumulation lighting time.

4. hot water supply device according to claim 2 display device it is characterised in that

Described brightness is changed circuit evolving and is had and accounts for corresponding with described maximum accumulation lighting time corresponding monochrome information The pulse signal of empty ratio is used as described brightness change signal.

5. hot water supply device according to claim 4 display device it is characterised in that

Described time measurement unit is directed to each described light source, the cycle according to described pulse signal and described dutycycle accumulation supply electricity The time of stream is used as described accumulation lighting time.