Adjusting method of combined washing machine capable of adjusting water temperature and washing machine

Abstract

The invention discloses an adjusting method of a combined washing machine capable of adjusting the water temperature. The adjusting method comprises the steps that the target water temperature T is obtained; when water starts to enter, the heater starts to work; when water inflow reaches the preset time, the water temperature T1 and the water inflow V in an inner barrel of the washing machine are obtained; and the heating power of the heater is adjusted according to the water temperature T1, the water inflow V and the target water temperature T. According to the washing machine, the heating temperature of the heater can be adjusted according to the temperature of water in the barrel, so that the water temperature in the barrel can quickly reach the set temperature of washing water, the heating time is shortened, and the efficiency is improved; the clothes are washed at proper water temperature, so that the washing effect is better, stains can be effectively removed, and the washing quality is ensured. On the second aspect, the invention provides the combined washing machine capable of adjusting the water temperature.

Description

Technical Field

[0001] The invention belongs to the field of washing machines, and in particular relates to a method for adjusting the water temperature of a combined washing machine and the washing machine. Background Art

[0002] With the improvement of living standards and the continuous expansion of people's daily needs, ordinary washing machines can no longer meet people's needs. In order to make detergents or washing powder obtain greater cleaning properties under suitable temperature conditions, so as to make clothes wash cleaner, the general method is to set a heating device on the washing machine to heat the washing water, and set a temperature sensor at the bottom of the washing machine barrel to measure the temperature of the washing water. The controller controls the heating device according to the water temperature measured by the temperature sensor to obtain a suitable washing water temperature. Washing machines with selectable water temperature can heat water while washing, have better cleaning effects, and can effectively remove stains. And there is no need to worry about the water temperature being insufficient, you can choose the washing temperature, hot water can effectively remove bacteria, ensure washing quality, and provide people with more choices for washing clothes.

[0003] The Chinese patent application number 201510738239.3 discloses a washing machine water temperature detection control method and a washing machine. The water temperature detection control method includes the washing machine receiving a water heating signal; obtaining the washing machine water intake m, the initial temperature T of the washing water; 0 and the heating target temperature T 目标 ; According to the water heating formula P*t=C*m*(T 目标 -T 0 ), calculate the heating time ttarget for washing water to be heated to the target temperature; perform heating and stop after the heating time ttarget. This method first obtains the heating signal, then calculates the heating time according to the water intake, the initial temperature of the washing water and the heating target temperature, and stops heating after the heating time is reached. However, it cannot be guaranteed that the water temperature of the washing water is the target water temperature after the heating time is reached, and there may also be temperature deviations.

[0004] In view of this, the present invention is proposed. Summary of the invention

[0005] The technical problem to be solved by the present invention is to overcome the shortcomings of the prior art and provide a method for adjusting a combined washing machine with selectable water temperature and a washing machine, wherein the water outlet temperature of the heater is set according to the set water temperature of the washing water, and then the heating temperature of the heater is adjusted by detecting the water output of the heater after a certain period of time and the water temperature in the inner barrel, so that the water temperature in the barrel reaches the temperature set by the washing program or the user.

[0006] In order to solve the above technical problems, the basic concept of the technical solution adopted by the present invention is:

[0007] A first aspect of the present invention provides a method for adjusting the water temperature of a combined washing machine, wherein a heater is provided on a water inlet pipe of the washing machine, comprising:

[0008] S1. Obtain target water temperature T;

[0009] S2, water starts to flow in and the heater starts to work;

[0010] S3: When the water inflow reaches the preset time, the water temperature T in the washing machine barrel is obtained. 1 and water inflow V;

[0011] S4, according to the water temperature T 1 , water inlet volume V and target water temperature T to adjust the heating power of the heater.

[0012] Optionally, in S4, include:

[0013] S41, obtain the water temperature T of the water coming out of the heater 2 ;

[0014] S42, according to the formula ρV 1 *C*T 1 +ρV 2 *C*T 3 =(ρV 1 +ρV 2 )*C*(T+ΔT), calculate the outlet water temperature T after the heater is adjusted 3 ;

[0015] Where ΔT = T 2 -T 1 ; ρ is the density of water; C is the specific heat capacity of water; V 1 、V 2 are the water inflow, when the water inflow remains unchanged, V 1 =V 2 .

[0016] S43, according to the outlet water temperature T adjusted by the heater 3 , adjust the heating temperature T of the heater 加热器 .

[0017] In S43, it includes:

[0018] According to the formula P = C * ρV 2 *(T 加热器 -T) / t calculates the power of the adjusted heater,

[0019] Wherein, t is the heating time for the heater to heat to the set temperature.

[0020] In S4, after adjusting the heating temperature of the heater, the following steps are performed:

[0021] S5, repeat steps S3 to S4;

[0022] S6. When the amount of water entering the washing machine reaches a preset amount, the heater stops working.

[0023] In S6, after the heater stops working, including:

[0024] S7, the washing machine performs a washing or rinsing process, and after completion, detects whether water needs to be added again;

[0025] S8. If yes, repeat steps S1 to S7.

[0026] Optionally, in S1, include:

[0027] S11, judging whether the washing water needs to be heated according to the set washing program;

[0028] S12: If necessary, obtain the target water temperature T.

[0029] Optionally, in S1, it also includes: the user sets the water temperature T for washing clothes according to the actual washing situation.

[0030] Another aspect of the present invention provides a combined washing machine with adjustable water temperature, the washing machine comprising a housing, an inner tub and a heater arranged on a water inlet pipe, and an adjustment method for the combined washing machine with adjustable water temperature is applied.

[0031] Furthermore, the heater is an instantaneous water heater, provided with a water inlet and a water outlet. The instantaneous water heater is connected to a tap water supply through the water inlet and is connected to a water inlet of an inner barrel of the washing machine through the water outlet.

[0032] Furthermore, the instant water heater is also provided with:

[0033] The first temperature sensor is used to detect the temperature of water heated by the instant water heater;

[0034] Water temperature sensor, used to detect the water temperature at the outlet of the instant water heater;

[0035] Flow sensor, used to detect the water output of instant water heater.

[0036] After adopting the above technical scheme, the present invention has the following beneficial effects compared with the prior art.

[0037] 1. The present invention arranges the instant water heater on the side wall of the washing machine body, which can reduce the use of space and the arrangement of pipelines; the instant water heater can heat the water while the water flows through the heater, thereby reducing the heating time and improving the efficiency.

[0038] 2. The washing machine of the present invention can adjust the water outlet temperature of the heater according to the temperature of the water in the barrel, the water output of the heater, and the set target temperature, so that the water temperature in the barrel can quickly reach the set washing water temperature.

[0039] 3. The combined washing machine of the present invention can supply hot water of a temperature suitable for washing clothes into the washing machine through a heater, thereby achieving a better cleaning effect, effectively removing stains and ensuring the washing quality.

[0040] The specific implementation modes of the present invention are further described in detail below in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] The accompanying drawings are part of the present invention and are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention, but do not constitute an improper limitation of the present invention. Obviously, the drawings described below are only some embodiments. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work. In the accompanying drawings:

[0042] Figure 1 The present invention is a schematic diagram of the adjustment method of the combined washing machine capable of adjusting water temperature. Figure 1 ;

[0043] Figure 2 The present invention is a schematic diagram of the adjustment method of the combined washing machine capable of adjusting water temperature. Figure 2 ;

[0044] Figure 3 The present invention is a schematic diagram of the adjustment method of the combined washing machine capable of adjusting water temperature. Figure 3 ;

[0045] Figure 4 It is a schematic diagram of a combined washing machine capable of adjusting water temperature according to the present invention.

[0046] In the figure: 1, instant water heater; 11, water inlet; 12, water outlet; 2, washing machine; 21, cabinet; 211, third temperature sensor; 22, inner barrel; 221, second temperature sensor.

[0047] It should be noted that these drawings and textual descriptions are not intended to limit the conceptual scope of the present invention in any way, but are intended to illustrate the concept of the present invention for those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0048] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. The following embodiments are used to illustrate the present invention but are not used to limit the scope of the present invention.

[0049] In the description of the present invention, it should be noted that the directions or positional relationships indicated by terms such as “upper”, “lower”, “front”, “back”, “left”, “right”, “vertical”, “inside” and “outside” are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention.

[0050] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0051] A heater is provided on the water inlet pipe of the washing machine to heat the water entering the washing machine. When the washing machine is to wash clothes, the water inlet setting is turned on, and the tap water enters the heater through the water inlet pipe to be heated. After the water is heated, it reaches the target water temperature, and then enters the inner barrel of the washing machine through the water outlet pipe to wash the clothes.

[0052] In a first aspect of the present invention, a method for adjusting the water temperature of a combined washing machine is provided, such as Figures 1 to 3 The method comprises steps S1 to S8.

[0053] In step S1 , the target water temperature T is acquired.

[0054] In step S2, water starts to flow in and the heater starts to work.

[0055] In step S3, the water inlet reaches the preset time, and the water temperature T in the inner barrel of the washing machine is obtained. 1 And the water inflow V.

[0056] In step S4, according to the water temperature T 1 , water inlet volume V and target water temperature T to adjust the heating power of the heater.

[0057] Specifically, when the washing machine is executing a washing program, there will be a washing temperature for washing clothes, that is, the water temperature that the washing machine's inlet water must reach, that is, the target water temperature. First, the target water temperature T is obtained, and then the heater heats the incoming water according to the target water temperature T, and then the heated water is passed into the washing machine. When the water outlet time of the heater reaches the preset time, the water temperature T of the water in the drum of the washing machine at this time is obtained. 1 And the water inlet V is the water output of the heater, then, according to the water temperature T in the inner barrel 1 , water inlet volume V and the set target water temperature T adjust the heating power of the heater.

[0058] In step S4, according to the water temperature T 1 , water intake volume V and target water temperature T, and the specific process of adjusting the heating power of the heater includes steps S41 to S43.

[0059] In step S41, the water temperature T of the water coming out of the heater is obtained. 2 .

[0060] In step S42, according to the formula ρV 1 *C*T 1 +ρV 2 *C*T 3 =(ρV 1 +ρV 2 )*C*(T+ΔT), calculate the outlet water temperature T after the heater is adjusted 3 ; where ΔT = T 2 -T 1 ; ρ is the density of water; C is the specific heat capacity of water; V 1 、V 2 Average water inflow, when the water inflow remains unchanged V 1 =V 2 .

[0061] In step S43, the outlet water temperature T 3 , adjust the heating temperature T of the heater 加 Heater.

[0062] Specifically, the water temperature T of the heater outlet water is obtained. 2 , the water output of the heater is the water inlet V, and the water temperature in the washing machine drum is T 1 And the set target temperature T, then according to the formula ρV 1 *C*T 1 +ρV 2 *C*T 3 =(ρV 1 +ρV 2 )*C*(T+ΔT), calculate the outlet water temperature T after the heater is adjusted 3, then according to T 3 The adjusted heating temperature T of the heater is obtained. 加热器 ; where ΔT = T 2 -T 1 ; ρ is the density of water; C is the specific heat capacity of water; V 1 、V 2 are the water inflow, when the water inflow remains unchanged, V 1 =V 2 .

[0063] Optionally, in step S43, it includes:

[0064] According to the formula P = C * ρV 2 *(T 加热器 -T) / t calculates the power of the adjusted heater,

[0065] Wherein, t is the heating time for the heater to heat to the set temperature.

[0066] Optionally, in step S4, after adjusting the heating temperature of the heater, steps S5 to S6 are included.

[0067] In step S5, steps S3 to S4 are repeated.

[0068] In step S6, after the amount of water entering the washing machine reaches a preset amount, the heater stops working.

[0069] Specifically, after the second water discharge of the heater reaches the preset time, the water temperature of the water in the inner barrel of the washing machine is detected again, and the water temperature of the next water discharge of the heater is adjusted according to the water temperature in the inner barrel, the water intake, the water temperature of the second water discharge of the heater, and the target water temperature, and then the heating temperature of the heater is adjusted, and then the heating power of the heater is adjusted according to the adjusted heating temperature to ensure that the heater can quickly reach the required heating temperature. Repeat the execution until the water intake reaches the water intake required by the washing program, stop the water intake and the heater stops working.

[0070] Optionally, in step S6, after the heater stops working, steps S7 to S8 are included.

[0071] In step S7, the washing machine performs a washing or rinsing process, and after completion, detects whether water needs to be added again.

[0072] In step S8, if yes, repeat steps S1 to S7.

[0073] Optionally, after the washing machine completes the washing or rinsing process, if it is detected that water is not needed again, the washing machine executes a dehydration program, and after the dehydration program is completed, the washing work is completed.

[0074] Specifically, after completing a wash or rinse cycle, the washing machine program determines whether water needs to be refilled. If it is determined that water needs to be refilled, the target water temperature for refilling is obtained, and water heated by the heater is added to the washing machine according to the obtained target water temperature. When the water outlet time of the heater reaches the preset time, the water temperature T of the water in the drum of the washing machine at this time is obtained. 1 And the water output of the heater is the water inlet V, then, according to the water temperature T in the inner barrel 1 , water intake V and the set target water temperature T to adjust the heater heating temperature. Until the water volume required for the washing program is reached, the water intake stops, the heater stops working, and the washing machine starts the next clothing washing process. If after program analysis, no more water intake is needed, the washing machine enters the dehydration stage, starts the dehydration program, and waits until the dehydration is completed to complete the washing process.

[0075] Optionally, in step S1, a specific method for obtaining the target water temperature T includes: S11 to S12.

[0076] In step S11, it is determined whether the washing water needs to be heated according to the set washing program.

[0077] In step S12, if necessary, the target water temperature T is obtained.

[0078] Optionally, in step S12, if it is determined that the washing water of the set washing program does not need to be heated, tap water is introduced.

[0079] Specifically, the user selects a washing program to be executed by the washing machine through the control panel of the washing machine, and the washing machine determines whether to heat the washing water according to the set washing mode. If heating is required, the target water temperature T is obtained, and then water is supplied to the washing machine according to the obtained target water temperature T. If it is determined that the water entering the washing machine does not need to be heated, tap water is directly introduced.

[0080] Optionally, the specific method for obtaining the target water temperature T also includes: the user sets the water temperature T for washing clothes according to the actual washing situation.

[0081] Specifically, after the user selects the washing program to be executed by the washing machine through the control panel of the washing machine, a certain temperature T is set to execute the washing program according to actual needs. At this time, the target water temperature T, that is, the temperature set by the user, is obtained, and then water is supplied to the washing machine according to the obtained target water temperature T.

[0082] A second aspect of the present invention provides a combined washing machine capable of adjusting water temperature, such as Figure 4 As shown, the washing machine 2 includes a housing 21, an inner tub 22 and a heater arranged on the water inlet pipeline, and the adjustment method of the combined washing machine with adjustable water temperature as described above is applied.

[0083] Furthermore, the heater is an instantaneous water heater 1, which is provided with a water inlet 11 and a water outlet 12. The instant water heater 1 is connected to a tap water supply through the water inlet 11 and is connected to a water inlet of an inner barrel 22 of a washing machine 2 through the water outlet 12.

[0084] Specifically, an instantaneous water heater 1 is arranged on the water inlet pipe of the washing machine 2, specifically arranged on the upper part of the inner wall of the box 21. The water inlet end 11 of the instantaneous water heater 1 is connected with the water supply end of the tap water through the water inlet pipe, and the water outlet end 12 is connected with the water inlet of the inner barrel 22 of the washing machine 2 through the water outlet pipe. When the washing machine 2 starts to work to wash clothes, the tap water enters the instantaneous water heater 1 through the water inlet pipe, and then after being heated by the instantaneous water heater 1, enters the water outlet pipe through the water outlet end 12 of the instantaneous water heater 1 and then enters the inner barrel 22 of the washing machine 2 to wash the clothes.

[0085] Furthermore, the instant water heater 1 is also provided with: a first temperature sensor for detecting the temperature of water heated by the instant water heater 1 ; a water temperature sensor for detecting the water temperature at the water outlet 12 of the instant water heater 1 ; and a flow sensor for detecting the water output of the instant water heater 1 .

[0086] Specifically, according to the acquired target water temperature, the instantaneous water heater 1 is started to heat the water to be fed into the washing machine, thereby providing hot water for the washing machine 2. The first temperature sensor is used to detect whether the water temperature heated by the heating component inside the instantaneous heater is the preset water temperature, and the water temperature sensor detects the water temperature at the water outlet 12 of the heater. If the water temperature at the water outlet 12 reaches the preset water temperature, water is fed into the washing machine 2.

[0087] Furthermore, the combined washing machine 2 also includes: a second temperature sensor 221, arranged at the bottom of the side wall of the inner barrel 22, for detecting the water temperature in the inner barrel 22; a third temperature sensor 211, arranged on the inner wall of the box body 21, for detecting the ambient temperature; a control unit, for realizing the adjustment of the water temperature in the instant water heater 1.

[0088] In this embodiment, the user selects a washing mode through the control panel of the washing machine 2. Different washing modes are suitable for different clothing materials and stain levels, and the user can also customize the water temperature. For example, when the user selects water suitable for T℃ for washing clothes, first, the instant water heater 1 is started to heat the water to be introduced into the washing machine 2. The water provided by the tap water is passed into the instant water heater 1 through the water inlet pipe. The instant water heater 1 heats the incoming water, and then enters the inner barrel 22 of the washing machine 2 through the water outlet pipe to participate in the washing work.

[0089] Specifically, according to the temperature T set by the user, the instant water heater 1 heats the water according to the obtained water temperature T, and the first temperature sensor detects the water temperature after heating by the heating component of the instant water heater 1. When the heated water temperature reaches the preset temperature T, water starts to enter.

[0090] For example: The initial power of instant water heater 1 is P 0 , the detected water inlet temperature of the instantaneous water heater 1 is T 0 , and the water temperature required for washing is T, there is a difference between the inlet water temperature and the target water temperature, and the corresponding power is adjusted according to the difference, so that the water temperature after heating by the instantaneous water heater 1 reaches the target water temperature T. At the same time, the third temperature sensor 211 provided on the housing 21 of the washing machine 2 can detect the temperature of the environment, and the power of the instantaneous water heater 1 can be appropriately adjusted through the calibration of the ambient temperature, so that the water temperature after heating by the instantaneous water heater 1 reaches the target water temperature T.

[0091] In this embodiment, when the water supply of the instantaneous water heater 1 reaches the preset time t 0 When the flow rate detector on the instantaneous water heater 1 detects the water output V or the flow rate sensor on the washing machine detects the water inflow V of the washing machine, in the case where no loss occurs, the water output V of the instantaneous water heater and the water inflow V of the washing machine are the same, and the water temperature sensor on the instantaneous water heater 1 detects the water temperature T 2 The second temperature sensor 221 provided in the inner tub 22 of the washing machine 2 detects the temperature T of the water in the inner tub 22. 1 , and then according to the obtained outlet water temperature T 2 , water inlet volume V, inner drum water temperature T 1 And the target water temperature T adjusts the outlet water temperature of the instant water heater 1.

[0092] Specifically, for example, the preset time is set to 30s. After the preset time is reached, the second temperature sensor 221 provided in the inner tub 22 detects the water temperature T in the inner tub 22. 1 The water temperature sensor provided in the instantaneous water heater 1 detects the outlet water temperature T of the instantaneous water heater 1. 2 , the flow sensor detects the water output V of the instantaneous water heater 1 within the preset time, and the formula ρV 1 *C*T 1 +ρV 2 *C*T 3 =(ρV 1 +ρV 2 )*C*(T+ΔT), the water temperature T of the water outlet of the instantaneous water heater 1 after adjustment can be calculated 3 .

[0093] It should be noted that in the formula, T is the preset temperature; C is the specific heat capacity of water; ΔT is the temperature loss after the outlet water temperature of the instantaneous water heater 1 reaches the water volume V in the inner cylinder, ΔT = T 2 -T 1 ; V 1 、V 2 All are heater preset time t 0 The water output in the water heater, where V 1 =V 2 .

[0094] Specifically, the water temperature T of the instant water heater after heating after adjustment can be obtained by the obtained water outlet temperature of the instant water heater 1. 热水器-2 .

[0095] More specifically, the water temperature T after heating by the adjusted instantaneous water heater 1 is obtained. 热水器-2 , combined with formula P 2 =C*ρV 2 *(T 热水器-2 -T) / t, the power of the instantaneous water heater 1 that needs to be adjusted can be calculated, where t is the rapid heating time of the instantaneous water heater 1 to heat to the set temperature. For example, the heating time of the instantaneous water heater 1 is 1s, and the water discharge time is 3s, P 2 Heat to T in t time 热水器-2 Water temperature The heating power of the instantaneous water heater 1.

[0096] In this embodiment, every time the preset time is reached, the second temperature sensor 221 detects the water temperature in the inner barrel 22, the flow sensor in the instant water heater 1 detects the water volume, and the water temperature sensor detects the water temperature, and then the power of the instant water heater 1 is adjusted in combination with the target temperature, and then the temperature of the water after heating by the instant water heater 1 is adjusted until the water intake reaches the water intake required for washing clothes, and then the water intake into the inner barrel 22 is stopped, and the instant water heater 1 stops working.

[0097] In another embodiment, after the user selects the washing mode through the control panel, the temperature setting is not required. The control system of the washing machine 2 directly determines whether heating is required according to the selected mode. If heating is not required, the instantaneous water heater 1 is not turned on, and tap water is directly introduced into the washing machine 2. If it is determined that the washing water needs to be heated, the required water temperature for washing clothes is obtained, and then the instantaneous water heater 1 is turned on. The temperature setting and adjustment process is the same as the process of the user setting the washing water temperature according to the actual situation.

[0098] In this embodiment, after washing or rinsing is completed, it is detected whether the entire washing program has been completed. If not, water still needs to be supplied to the washing machine 2, and the temperature detection and temperature setting and adjustment processes are repeated; if it has been completed, there is no need to supply water to the washing machine 2, then the dehydration program is started, and after the program ends, the washing is completed.

[0099] The above description is only a preferred embodiment of the present invention, and does not limit the present invention in any form. Although the present invention has been disclosed as a preferred embodiment as above, it is not used to limit the present invention. Any technician familiar with this patent can make some changes or modifications to equivalent embodiments of equivalent changes by using the technical content suggested above without departing from the scope of the technical solution of the present invention. The implementation scheme in the above embodiment can also be further combined or replaced. However, any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the present invention without departing from the content of the technical solution of the present invention still falls within the scope of the solution of the present invention.

Claims

1. A method for adjusting the water temperature of a combined washing machine, wherein a heater is provided on the water inlet pipe of the washing machine, characterized in that: include: S1. Obtain target water temperature T; S2, water starts to flow in and the heater starts to work; S3, when the water inflow reaches the preset time, the water temperature T1 and the water inflow volume V in the inner barrel of the washing machine are obtained; S4. Adjust the heating power of the heater according to the water temperature T1, the water inlet volume V and the target water temperature T.

2. The method for adjusting the water temperature of a combined washing machine according to claim 1, characterized in that: In S4, it includes: S41, obtaining the water temperature T2 of the water coming out of the heater; S42, according to the formula ρV1*C*T1+ρV2*C*T3=(ρV1+ρV2)*C*(T+ΔT), calculate the outlet water temperature T3 after the heater is adjusted; Among them, ΔT = T2-T1; ρ is the density of water; C is the specific heat capacity of water; V1 and V2 are both water inflow, and V1 = V2 when the water inflow remains unchanged; S43, according to the outlet water temperature T3 adjusted by the heater, adjust the heating temperature T 加热器 .

3. The method for adjusting the water temperature of a combined washing machine according to claim 2, characterized in that: In S43, it includes: According to the formula P = C * ρ V2 * (T 加热器 -T) / t calculates the power of the adjusted heater, Wherein, t is the heating time for the heater to heat to the set temperature.

4. The method for adjusting the water temperature of a combined washing machine according to claim 1, characterized in that: In S4, after adjusting the heating temperature of the heater, the following steps are performed: S5, repeat steps S3 to S4; S6. When the amount of water entering the washing machine reaches a preset amount, the heater stops working.

5. The method for adjusting the water temperature of a combined washing machine according to claim 4, characterized in that: In S6, after the heater stops working, including: S7, the washing machine performs a washing or rinsing process, and after completion, detects whether water needs to be added again; S8. If yes, repeat steps S1 to S7.

6. The method for adjusting the water temperature of a combined washing machine according to claim 1, characterized in that: In S1, it includes: S11, judging whether the washing water needs to be heated according to the set washing program; S12: If necessary, obtain the target water temperature T.

7. The method for adjusting the water temperature of a combined washing machine according to claim 1, characterized in that: In S1, it also includes: the user sets the water temperature T for washing clothes according to the actual washing situation.

8. A combined washing machine with adjustable water temperature, comprising a housing, an inner tub and a heater arranged on a water inlet pipe, characterized in that: A method for adjusting the combined washing machine with adjustable water temperature as described in any one of claims 1 to 6 is used.

9. The combined washing machine with adjustable water temperature according to claim 8, characterized in that: The heater is an instantaneous water heater, which is provided with a water inlet and a water outlet. The instantaneous water heater is connected to the tap water supply end through the water inlet and is connected to the water inlet of the inner barrel of the washing machine through the water outlet.

10. The combined washing machine with adjustable water temperature according to claim 9, characterized in that: The instant water heater also includes: The first temperature sensor is used to detect the temperature of water heated by the instant water heater; Water temperature sensor, used to detect the water temperature at the outlet of the instant water heater; Flow sensor, used to detect the water output of instant water heater.

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