A control method of a full-dc gas water heater and a related device

Abstract

The application relates to a control method of a full-direct-current gas water heater and related equipment thereof, and the method comprises the following steps: after the full-direct-current gas water heater is powered on, if a direct-current fan needs to be started, a first temperature of a fan driving module is acquired, and if a direct-current water pump needs to be started, a second temperature of a water pump driving module is acquired; after the first temperature is obtained, a first starting speed of a motor in the direct-current fan is determined according to the first temperature, and after the second temperature is obtained, a second starting speed of a motor in the direct-current water pump is determined according to the second temperature; after the first starting speed is obtained, the motor in the direct-current fan is controlled according to the first starting speed, and after the second starting speed is obtained, the motor in the direct-current water pump is controlled according to the second starting speed. The application avoids deflagration caused by ignition lag of the full-direct-current gas water heater, and guarantees the use reliability of the full-direct-current gas water heater and the life safety of users.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of gas water heaters, and particularly relates to a control method of a full-direct-current gas water heater and a related device thereof. BACKGROUND

[0002] The emergence of the full-direct-current gas water heater greatly facilitates people's daily life. In the full-direct-current gas water heater, a direct-current water pump is arranged to realize the functions of zero cold water and pressure boosting, and a direct-current fan is arranged to adjust the combustion air volume, so as to meet various water outlet requirements. However, when the full-direct-current gas water heater is ignited at a low temperature, the ignition of the full-direct-current gas water heater will be delayed, and thus the explosion of the accumulated gas will occur, which not only affects the use reliability of the full-direct-current gas water heater, but also affects the life safety of the user. SUMMARY

[0003] In view of this, in order to solve the above or part of the technical problems, the embodiments of the present application provide a control method of a full-direct-current gas water heater and a related device thereof.

[0004] In a first aspect, the present application provides a control method of a full-direct-current gas water heater, applied to a processing module in the full-direct-current gas water heater, the full-direct-current gas water heater further comprising a direct-current fan, a direct-current water pump, a fan driving module and a water pump driving module, the fan driving module being connected with the processing module and the direct-current fan, the water pump driving module being connected with the processing module and the direct-current water pump, and the method comprising:

[0005] After the full-direct-current gas water heater is powered on, if the direct-current fan needs to be started, a first temperature of the fan driving module is acquired, and if the direct-current water pump needs to be started, a second temperature of the water pump driving module is acquired;

[0006] After the first temperature is obtained, a first starting speed of a motor in the direct-current fan is determined according to the first temperature, and after the second temperature is obtained, a second starting speed of a motor in the direct-current water pump is determined according to the second temperature;

[0007] After the first starting speed is obtained, the motor in the direct-current fan is controlled according to the first starting speed, and after the second starting speed is obtained, the motor in the direct-current water pump is controlled according to the second starting speed.

[0008] In an optional embodiment, the determination of the first starting speed of the motor in the direct-current fan according to the first temperature comprises:

[0009] The first environmental state corresponding to the full-direct-current gas water heater is determined according to the first temperature;

[0010] determining a first sum value between a first preset starting speed of a motor in the direct-current fan and a first preset adjustment speed, the first preset adjustment speed being a positive number, the first preset starting speed being used to represent a starting speed of the motor in the direct-current fan in a non-low temperature environment, when the first environment state is a low temperature environment;

[0011] determining the first sum value as a first starting speed of the motor in the direct-current fan;

[0012] controlling the motor in the direct-current fan according to the first starting speed, including:

[0013] determining a first starting parameter of the motor corresponding to the first starting speed according to the first starting speed;

[0014] sending the first starting parameter to the fan driving module, so that the fan driving module controls the motor in the direct-current fan by using the first starting parameter.

[0015] In an optional embodiment, the method further includes:

[0016] determining a second environment state corresponding to the all-direct-current gas water heater according to the second temperature;

[0017] determining a second sum value between a second preset starting speed of a motor in the direct-current water pump and a second preset adjustment speed, the second preset adjustment speed being a positive number, the second preset starting speed being used to represent a starting speed of the motor in the direct-current water pump in a non-low temperature environment, when the second environment state is a low temperature environment;

[0018] determining the second sum value as a second starting speed of the motor in the direct-current water pump;

[0019] controlling the motor in the direct-current water pump according to the second starting speed, including:

[0020] determining a second starting parameter of the motor corresponding to the second starting speed according to the second starting speed;

[0021] sending the second starting parameter to the water pump driving module, so that the water pump driving module controls the motor in the direct-current water pump by using the second starting parameter.

[0022] In an optional embodiment, the method further includes:

[0023] injecting a high-frequency signal to the motor in the DC fan to determine a first motor parameter of the motor in the DC fan after the full-DC gas water heater is powered on;

[0024] after obtaining the first motor parameter, performing the step of obtaining a first temperature on the fan driving module if the DC fan needs to be started;

[0025] after obtaining the first starting speed, controlling the motor in the DC fan according to the first starting speed, comprising:

[0026] after obtaining the first starting speed, controlling the motor in the DC fan according to the first starting speed and the first motor parameter.

[0027] In an optional embodiment, the fan driving module is pluggably connected with the processing module;

[0028] the step of injecting the high-frequency signal to the motor in the DC fan to determine the first motor parameter of the motor in the DC fan after the full-DC gas water heater is powered on, comprising:

[0029] after the full-DC gas water heater is powered on, obtaining a first connection signal between the fan driving module and the processing module;

[0030] when the first connection signal is a connection success, injecting the high-frequency signal to the motor in the DC fan to determine the first motor parameter of the motor in the DC fan.

[0031] In an optional embodiment, the method further comprises:

[0032] injecting a high-frequency signal to the motor in the DC water pump to determine a second motor parameter of the motor in the DC water pump after the full-DC gas water heater is powered on;

[0033] after obtaining the second motor parameter, performing the step of obtaining a second temperature of the water pump driving module if the DC water pump needs to be started;

[0034] after obtaining the second starting speed, controlling the motor in the DC water pump according to the second starting speed, comprising:

[0035] after obtaining the second starting speed, controlling the motor in the DC fan according to the second starting speed and the second motor parameter.

[0036] In an optional embodiment, the water pump driving module is pluggably connected with the processing module;

[0037] The high-frequency signal is injected into the motor in the DC water pump to determine the second motor parameter of the motor in the DC water pump after the full-DC gas water heater is powered on, including:

[0038] After the full-DC gas water heater is powered on, the second connection signal between the water pump driving module and the processing module is obtained.

[0039] When the second connection signal is a connection success, the high-frequency signal is injected into the motor in the DC water pump to determine the second motor parameter of the motor in the DC water pump.

[0040] In a second aspect, the application provides a control device of a full-DC gas water heater, the full-DC gas water heater comprising a DC fan, a DC water pump, a fan driving module and a water pump driving module, the fan driving module being connected with the processing module and the DC fan, the water pump driving module being connected with the processing module and the DC water pump, the device comprising:

[0041] The acquisition module is configured to, after the full-DC gas water heater is powered on, acquire a first temperature of the fan driving module if the DC fan needs to be started, and acquire a second temperature of the water pump driving module if the DC water pump needs to be started.

[0042] The determination module is configured to, after the first temperature is obtained, determine a first starting speed of the motor in the DC fan according to the first temperature, and, after the second temperature is obtained, determine a second starting speed of the motor in the DC water pump according to the second temperature.

[0043] The control module is configured to, after the first starting speed is obtained, control the motor in the DC fan according to the first starting speed, and, after the second starting speed is obtained, control the motor in the DC water pump according to the second starting speed.

[0044] In a third aspect, the application provides a full-DC gas water heater, comprising a processor and a memory, the processor being configured to execute a control program of the full-DC gas water heater stored in the memory to implement the control method of the full-DC gas water heater as described above.

[0045] In a fourth aspect, the application provides a storage medium, the storage medium storing one or more programs, the one or more programs being executable by one or more processors to implement the control method of the full-DC gas water heater as described above.

[0046] Compared with the prior art, the control method of the full-DC gas water heater provided in the embodiments of the present application has the following advantages: the control method of the full-DC gas water heater is applied to a processing module in the full-DC gas water heater, the full-DC gas water heater further comprises a DC fan, a DC water pump, a fan driving module and a water pump driving module, the fan driving module is connected with the processing module and the DC fan, the water pump driving module is connected with the processing module and the DC water pump, and the method comprises the following steps: after the full-DC gas water heater is powered on, if the DC fan needs to be started, a first temperature of the fan driving module is acquired, and if the DC water pump needs to be started, a second temperature of the water pump driving module is acquired; after the first temperature is acquired, a first starting speed of a motor in the DC fan is determined according to the first temperature, and after the second temperature is acquired, a second starting speed of a motor in the DC water pump is determined according to the second temperature; after the first starting speed is acquired, the motor in the DC fan is controlled according to the first starting speed, and after the second starting speed is acquired, the motor in the DC water pump is controlled according to the second starting speed. In this way, when the DC fan and the DC water pump in the full-DC gas water heater need to be started, the temperature of the fan driving module corresponding to the DC fan and the temperature of the water pump driving module corresponding to the DC water pump are acquired to adaptively adjust the starting speed of the motor in the DC fan and the motor in the DC water pump, so that the ignition time of the full-DC gas water heater is adjusted, and the explosion caused by the ignition lag of the full-DC gas water heater is avoided, and the use reliability of the full-DC gas water heater and the safety of the user are ensured. BRIEF DESCRIPTION OF DRAWINGS

[0047] The accompanying drawings, which are incorporated herein and form a part of the specification, illustrate embodiments consistent with the present application and, together with the description, further serve to explain the principles of the application.

[0048] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the accompanying drawings needed to be used in the embodiments or prior art description will be briefly introduced as follows: obviously, for those skilled in the art, other drawings can also be obtained without creative labor based on these drawings.

[0049] One or more embodiments are exemplarily illustrated by pictures in the drawings corresponding thereto, and these exemplary illustrations do not constitute a limitation on the embodiments, elements with the same reference numerals in the drawings represent similar elements, unless otherwise specified, and the drawings do not constitute a proportional limitation.

[0050] Figure 1 A flowchart of a control method of a full-DC gas water heater provided in the embodiments of the present application;

[0051] Figure 2A flowchart illustrating another control method for a fully DC gas water heater provided in an embodiment of this application;

[0052] Figure 3 A flowchart illustrating another control method for a fully DC gas water heater provided in this application embodiment;

[0053] Figure 4 A schematic diagram of a fully DC gas water heater provided in an embodiment of this application;

[0054] Figure 5 A schematic diagram of the structure of a control device for a fully DC gas water heater provided in an embodiment of this application;

[0055] Figure 6 This is a schematic diagram of another all-DC gas water heater provided in an embodiment of this application;

[0056] In the attached diagrams above:

[0057] 10. Acquisition Module; 20. Determination Module; 30. Control Module;

[0058] 600. All-DC gas water heater; 601. Processor; 602. Memory; 6021. Operating system; 6022. Application program; 603. User interface; 604. Network interface; 605. Bus system. Detailed Implementation

[0059] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0060] The following disclosure provides numerous different embodiments or examples for implementing various structures of the invention. To simplify the disclosure, specific examples of components and arrangements are described below. These are merely examples and are not intended to limit the scope of the invention. Furthermore, reference numerals and / or letters may be repeated in different examples. Such repetition is for simplification and clarity and does not in itself indicate a relationship between the various embodiments and / or arrangements discussed.

[0061] refer to Figure 1 , Figure 1 This is a flowchart illustrating a control method for a fully DC gas water heater provided in an embodiment of this application. The control method for a fully DC gas water heater provided in this application includes the following steps:

[0062] S101: After the full DC gas water heater is powered on, if the DC fan needs to be started, the first temperature of the fan driving module is obtained, and if the DC water pump needs to be started, the second temperature of the water pump driving module is obtained.

[0063] In this embodiment, the execution subject is a processing module in the full DC gas water heater. Referring to Figure 4 The full DC gas water heater further includes a DC fan, a DC water pump, a fan driving module, and a water pump driving module. The fan driving module is connected with the processing module and the DC fan, and the water pump driving module is connected with the processing module and the DC water pump. The processing module and the water pump driving module are connected through a weak current communication bus, and the processing module and the fan driving module are also connected through the weak current communication bus. In order to facilitate installation and maintenance, the processing module and the water pump driving module are plug-in connected, the processing module and the fan driving module are plug-in connected, the water pump driving module and the DC water pump are plug-in connected, and the fan driving module and the DC fan are plug-in connected. The full DC gas water heater adopts full DC low-voltage power supply, and the power supply end of the full DC gas water heater is a low-voltage DC power grid or power supply. It should be noted that if the full DC gas water heater does not need the zero-cold-water function, only the fan driving module can be selected to be plugged into the processing module, and then the DC fan is plugged into the fan driving module, without the need to plug the water pump driving module into the processing module and then plug the DC water pump into the water pump driving module, which facilitates the installation and maintenance replacement of the full DC gas water heater.

[0064] Specifically, the fan driving module is provided with a temperature sensor, so that when the DC fan needs to be started, the first temperature of the fan driving module is collected through the temperature sensor, so that the processing module obtains the first temperature of the fan driving module. The water pump driving module is provided with a temperature sensor, so that when the DC water pump needs to be started, the second temperature of the water pump driving module is collected through the temperature sensor, so that the processing module obtains the second temperature of the water pump driving module.

[0065] S102: After obtaining the first temperature, the first starting speed of the motor in the DC fan is determined according to the first temperature, and after obtaining the second temperature, the second starting speed of the motor in the DC water pump is determined according to the second temperature.

[0066] In the embodiment, after the first temperature is obtained, in order to ensure the ignition reliability of the full DC gas water heater in a low temperature environment, the first starting speed of the motor in the DC fan is determined according to the first temperature, so that the full DC gas water heater is quickly ignited in the low temperature environment by using the determined first starting speed. After the second temperature is obtained, in order to ensure the ignition reliability of the full DC gas water heater in a low temperature environment, the second starting speed of the motor in the DC water pump is determined according to the second temperature, so that the full DC gas water heater is quickly ignited in the low temperature environment by using the second starting speed.

[0067] S103: After the first starting speed is obtained, the motor in the DC fan is controlled according to the first starting speed, and after the second starting speed is obtained, the motor in the DC water pump is controlled according to the second starting speed.

[0068] In the embodiment, after the first starting speed is obtained, the motor in the DC fan is controlled according to the first starting speed, and after the second starting speed is obtained, the motor in the DC water pump is controlled according to the second starting speed.

[0069] The control method of the full DC gas water heater provided in the embodiment can realize the adjustment of the ignition time of the full DC gas water heater by adaptively adjusting the starting speed of the motor in the DC fan and the motor in the DC water pump when the DC fan and the DC water pump in the full DC gas water heater need to be started, thereby avoiding the explosion caused by the ignition lag of the full DC gas water heater, and ensuring the use reliability of the full DC gas water heater and the safety of the user.

[0070] Reference Figure 2 , Figure 2 Another flowchart of the control method of the full DC gas water heater provided in the embodiment is provided. The control method of the full DC gas water heater provided in the embodiment includes the following steps:

[0071] S201: After the full DC gas water heater is powered on, if the DC fan needs to be started, the first temperature of the fan driving module is obtained, and if the DC water pump needs to be started, the second temperature of the water pump driving module is obtained.

[0072] In this embodiment, the steps of obtaining the first temperature of the fan drive module and obtaining the second temperature of the water pump drive module in step S201 are the same as those in step S101 above. For details, please refer to step S101 above. In this embodiment, they will not be repeated here.

[0073] In order to achieve accurate control of the motor in the subsequent DC fan, the control method for a fully DC gas water heater provided in this embodiment further includes the following steps:

[0074] After the all-DC gas water heater is powered on, a high-frequency signal is injected into the motor of the DC fan to determine the first motor parameters of the DC fan.

[0075] After obtaining the first motor parameters, if it is necessary to start the DC fan, the first temperature of the fan drive module should be obtained.

[0076] Specifically, the first motor parameter refers to the resistance and inductance of the motor in the DC fan. Injecting a high-frequency signal into the motor of the DC fan can be achieved using existing high-frequency injection algorithms, thereby identifying the resistance and inductance of the motor and facilitating accurate control of the motor when needed. It should be noted that injecting the high-frequency signal into the DC fan motor specifically involves the processing module in the all-DC gas water heater injecting a high-frequency signal into the motor of the DC fan through the fan drive module.

[0077] More specifically, since the fan drive module is pluggably connected to the processing module in the all-DC gas water heater, to avoid unreliable plugging and unplugging between the fan drive module and the all-DC gas water heater, which could affect the accurate control of the subsequent DC fan, therefore, refer to... Figure 3 This embodiment provides a method for injecting a high-frequency signal into the motor of a DC fan after the all-DC gas water heater is powered on, in order to determine the first motor parameters of the motor in the DC fan, including:

[0078] After the all-DC gas water heater is powered on, the first connection signal between the fan drive module and the processing module is obtained;

[0079] When the first connection signal indicates a successful connection, a high-frequency signal is injected into the motor of the DC fan to determine the first motor parameters of the motor in the DC fan.

[0080] The fan drive module communicates bidirectionally with the processing module in the all-DC gas water heater. The fan drive module can transmit its own status and the relevant information of the DC fan connected to it to the processing module in the all-DC gas water heater, enabling the processing module to make timely control decisions. The baud rate used for communication between the fan drive module and the processing module in the all-DC gas water heater is 9600, and the data bits are 8 bits.

[0081] In the above, the communication protocol data format: [Header] [Code] [ID] [Token] [Path] [Payload] [Cmd] [End]. Header: 0x42 indicates a message that needs to be replied to, 0x52 indicates a message that does not need to be replied to. Code: 0x03 indicates initiating a data request, 0x44 indicates receiving a data request. ID: fixed as 0x0001, while reserving for subsequent addition of other component communication management. Token: fixed as 0xbc90. Path: for corresponding function type, for example, 0xb3312f10 is the installation state of the fan drive module, 0: installed, 1: not installed, 0xb3312f20 is the installation state of the water pump drive module, 0: installed, 1: not installed. 0xb3312f30 is the information state of the fan drive module, 0: open phase, 1: locked rotor, 2: overcurrent, 3: overvoltage, 4: undervoltage, 5: overtemperature, 6: startup failure, 7: drive module temperature, 8-F extended reserved function. 0xb3312f40 is the information state of the water pump drive module, 0: open phase, 1: locked rotor, 2: overcurrent, 3: overvoltage, 4: undervoltage, 5: overtemperature, 6: startup failure, 7: drive module temperature, 8-F extended reserved function. Payload: command loading flag is 0xFF, followed by Cmd. Cmd: command code range is (0x0002~0x003D). End: end symbol is temporarily 0xFB. Remark: data of two bytes and above, high bit first, low bit last, timeout retransmission time is defined as 1S. The communication protocol data format between the processing module and the fan drive module and the water pump drive module can be referred to Table 1.

[0082] Table 1 Communication protocol data format

[0083]

[0084] Similarly, in order to realize the accurate control of the motor in the subsequent direct current water pump, the control method of the full direct current gas water heater provided by the embodiment also includes the following steps:

[0085] After the full direct current gas water heater is powered on, a high frequency signal is injected to the motor in the direct current water pump to determine the second motor parameter of the motor in the direct current water pump.

[0086] After obtaining the second motor parameter, if it is necessary to start the direct current water pump, the second temperature of the water pump drive module is obtained.

[0087] Specifically, the second motor parameter is the resistance and inductance of the motor in the DC water pump. The existing high-frequency injection algorithm can be used to inject a high-frequency signal into the motor in the DC water pump, so as to identify the resistance and inductance of the motor in the DC water pump, and then facilitate accurate control of the motor in the DC water pump when it is necessary to control the motor in the DC water pump. It should be noted that injecting a high-frequency signal into the motor in the DC water pump specifically means that the processing module in the full DC gas water heater injects a high-frequency signal into the motor in the DC water pump through the water pump driving module.

[0088] More specifically, since the water pump driving module is pluggable connected with the processing module in the full DC gas water heater, in order to avoid the pluggable unreliability between the water pump driving module and the full DC gas water heater, thereby affecting the subsequent accurate control of the DC water pump, therefore, with reference to Figure 3 After the full DC gas water heater is powered on, the motor in the DC water pump is injected with a high-frequency signal to determine the first motor parameter of the motor in the DC water pump, comprising:

[0089] After the full DC gas water heater is powered on, the second connection signal between the water pump driving module and the processing module is obtained;

[0090] When the second connection signal is connected successfully, a high-frequency signal is injected into the motor in the DC water pump to determine the second motor parameter of the motor in the DC water pump.

[0091] Wherein, the water pump driving module and the processing module in the full DC gas water heater communicate bidirectionally, the water pump driving module can transmit its own conditions and the related conditions of the DC water pump connected with the water pump driving module to the processing module in the full DC gas water heater, so as to facilitate the processing module to make control decisions in time. The baud rate used between the water pump driving module and the processing module in the full DC gas water heater is 9600, and the data bit is 8bit. The communication protocol data format between the processing module and the water pump driving module can refer to Table 1.

[0092] S202: After obtaining the first temperature, determine the first environmental state corresponding to the full DC gas water heater according to the first temperature.

[0093] S203: When the first environmental state is a low-temperature state, determine the first and value between the first preset starting speed and the first preset adjustment speed of the motor in the DC fan.

[0094] S204: Determine the first starting speed of the motor in the DC fan as the first and value.

[0095] S205: Determine the first starting parameter of the motor corresponding to the first starting speed according to the first starting speed.

[0096] S206: send the first start parameter to the fan drive module, so that the fan drive module controls the motor in the direct current fan by using the first start parameter.

[0097] For the above S202 step ~ S206 step, the processing module stores a first preset start speed of the motor in the direct current fan, which is a start speed that can ensure the reliability of the ignition of the full direct current gas water heater in a non-low temperature environment, that is, used to represent the start speed of the motor in the direct current fan in a non-low temperature environment. When in a low temperature environment, if the motor in the direct current fan is still controlled to start at the first preset start speed, the ignition of the full direct current gas water heater will be delayed, which will make the full direct current gas water heater have the possibility of explosion. Therefore, when the direct current fan needs to be started, the motor in the direct current fan is not directly controlled to start at the first preset start speed, but the first temperature of the fan drive module is obtained by the fan drive module, so as to determine the first environment state corresponding to the full direct current gas water heater according to the first temperature. Whether the first preset start speed needs to be adjusted is determined according to the determined first environment state. The first environment state includes a low temperature environment and a non-low temperature environment. After obtaining the first temperature, the first temperature can be compared with a preset temperature threshold. When the first temperature is less than the preset temperature threshold, it is determined that the first environment state is a low temperature environment; when the first temperature is greater than or equal to the preset temperature threshold, it is determined that the first environment state is a non-low temperature environment. The preset temperature threshold can be set according to actual needs, which is not limited in the embodiment.

[0098] When it is determined according to the above that the first environment state is a low-temperature environment, a first sum value between the first preset starting speed and a first preset adjustment speed can be determined, and the first preset adjustment speed is a positive number. The first sum value is determined as a first starting speed of the motor in the direct-current fan, and the motor in the direct-current fan is started by using the first starting speed. When the motor in the direct-current fan is started by using the first starting speed, a first starting parameter corresponding to the first starting speed can be determined from the first preset correlation relationship, and the first preset correlation relationship stores a plurality of corresponding relationships between starting speeds and starting parameters. When the first starting parameter is obtained, the first starting parameter is sent to the fan driving module, so that the fan driving module controls the motor in the direct-current fan by using the first starting parameter. The first starting parameter can include a starting current and a starting voltage of the motor in the direct-current fan. It should be noted that after the first starting speed is obtained, the motor in the direct-current fan can be controlled according to the first starting speed and the first motor parameter, so that the motor in the direct-current fan starts at the first starting speed. Specifically, the direct-current fan can be controlled according to the first starting parameter and the first motor parameter, so that the motor in the direct-current fan starts at the first starting speed. The first preset starting speed and the first preset adjustment speed can be set according to actual needs, and the specific values of the first preset starting speed and the first preset adjustment speed are not limited in the embodiment.

[0099] When it is determined according to the above that the first environment state is a non-low-temperature environment, the motor in the direct-current fan is started by using the first preset starting speed. When the motor in the direct-current fan is started by using the first preset starting speed, a third starting parameter corresponding to the first preset starting speed can be determined from the first preset correlation relationship, so that the fan driving module controls the motor in the direct-current fan by using the third starting parameter. The third starting parameter can include a starting current and a starting voltage of the motor in the direct-current fan. It should be noted that after the first preset starting speed is obtained, the motor in the direct-current fan can be controlled according to the first preset starting speed and the first motor parameter, so that the motor in the direct-current fan starts at the first preset starting speed. Specifically, the direct-current fan can be controlled according to the third starting parameter and the first motor parameter, so that the motor in the direct-current fan starts at the first preset starting speed.

[0100] In the embodiment, reference is made to Figure 3After the fan driving module controls the motor in the direct-current fan, it is determined whether the motor in the direct-current fan is started at the determined starting speed. If the motor in the direct-current fan is not started at the determined starting speed, it is determined that the motor in the direct-current fan fails to start, i.e., the direct-current fan has a fault. The fan driving module sends the fault information of the direct-current fan to the processing module in the all-direct-current gas water heater, so that the processing module displays the fault information of the direct-current fan through the display module arranged in the all-direct-current gas water heater, thereby enabling the user to timely process the direct-current fan through the display module. If the motor in the direct-current fan is started at the determined starting speed, it is determined that the motor in the direct-current fan successfully starts, i.e., the direct-current fan has no fault, and the fan driving module continues to control the motor in the direct-current fan. The display module arranged in the all-direct-current gas water heater can be referred to the display module shown in Figure 4

[0101] S207: After obtaining the second temperature, the second environment state corresponding to the all-direct-current gas water heater is determined according to the second temperature.

[0102] S208: When the second environment state is a low-temperature environment, a second sum value between the second preset starting speed and the second preset adjusting speed of the motor in the direct-current water pump is determined.

[0103] S209: The second sum value is determined as the second starting speed of the motor in the direct-current water pump.

[0104] S210: The second starting parameter corresponding to the second starting speed of the motor is determined according to the second starting speed.

[0105] S211: The second starting parameter is sent to the water pump driving module, so that the water pump driving module controls the motor in the direct-current water pump by using the second starting parameter.

[0106] ​The second preset starting speed of the motor in the direct-current water pump is stored in the processing module in advance, and the second preset starting speed is a starting speed that can ensure reliable ignition of the full direct-current gas water heater in a non-low-temperature environment, that is, is used to represent the starting speed of the motor in the direct-current water pump in a non-low-temperature environment. When the temperature is low, if the motor in the direct-current water pump is still controlled to start at the second preset starting speed, the ignition of the full direct-current gas water heater will be delayed, which will increase the possibility of explosion of the full direct-current gas water heater. Therefore, when the direct-current water pump needs to be started, the motor in the direct-current water pump is not directly controlled to start at the second preset starting speed, but the second temperature of the water pump driving module is obtained through the water pump driving module, so as to determine the second environmental state corresponding to the full direct-current gas water heater according to the second temperature. Whether the second preset starting speed needs to be adjusted is determined according to the determined second environmental state. The second environmental state includes a low-temperature environment and a non-low-temperature environment. After obtaining the second temperature, the second temperature is compared with a preset temperature threshold value. When the second temperature is less than the preset temperature threshold value, it is determined that the second environmental state is a low-temperature environment. When the second temperature is greater than or equal to the preset temperature threshold value, it is determined that the second environmental state is a non-low-temperature environment. The preset temperature threshold value can be set according to actual needs, which is not limited in the embodiment.

[0107] When it is determined according to the above that the second environmental state is a low-temperature environment, a second sum value between the second preset starting speed and a second preset adjustment speed can be determined. The second preset adjustment speed is a positive number. The second sum value is determined as the second starting speed of the motor in the direct-current water pump, and the motor in the direct-current water pump is started by using the second starting speed. When the motor in the direct-current water pump is started by using the second starting speed, the second starting parameter corresponding to the second starting speed can be determined from the second preset correlation. The second preset correlation stores a plurality of corresponding relationships between starting speeds and starting parameters. When the second starting parameter is obtained, the second starting parameter is sent to the water pump driving module, so that the water pump driving module controls the motor in the direct-current water pump by using the second starting parameter. The second starting parameter can include the starting current and the starting voltage of the motor in the direct-current water pump. It should be noted that after the second starting speed is obtained, the motor in the direct-current water pump can be controlled according to the second starting speed and the second motor parameter, so that the motor in the direct-current water pump starts at the second starting speed. Specifically, the motor in the direct-current water pump can be controlled according to the second starting parameter and the second motor parameter, so that the motor in the direct-current water pump starts at the second starting speed. The second preset starting speed and the second preset adjustment speed can be set according to actual needs, and the specific values of the second preset starting speed and the second preset adjustment speed are not limited in the embodiment.

[0108] When the second environment state is determined to be a non-low temperature environment according to the above, the motor in the direct-current water pump is started by using the second preset starting speed. When the motor in the direct-current water pump is started by using the second preset starting speed, the fourth starting parameter corresponding to the second preset starting speed can be determined from the second preset correlation relationship, so that the water pump driving module controls the motor in the direct-current water pump by using the fourth starting parameter. The fourth starting parameter can include the starting current and starting voltage of the motor in the direct-current water pump, and the like. It should be noted that after the second preset starting speed is obtained, the motor in the direct-current water pump can be controlled according to the second preset starting speed and the second motor parameter, so that the motor in the direct-current water pump starts at the second preset starting speed. Specifically, the direct-current water pump can be controlled according to the fourth starting parameter and the second motor parameter, so that the motor in the direct-current water pump starts at the second preset starting speed.

[0109] In the embodiment, reference is made to Figure 3 After the water pump driving module controls the motor in the direct-current water pump, it is determined whether the motor in the direct-current water pump starts at the determined starting speed. If the motor in the direct-current water pump does not start at the determined starting speed, it is determined that the motor in the direct-current water pump fails, that is, the direct-current water pump has a fault. The water pump driving module sends the fault information of the direct-current water pump to the processing module in the full direct-current gas water heater, so that the processing module displays the fault information of the direct-current water pump through the display module arranged in the full direct-current gas water heater, so that the user can timely process the direct-current water pump through the display module. If the motor in the direct-current water pump starts at the determined starting speed, it is determined that the motor in the direct-current water pump starts successfully, that is, the direct-current water pump does not have a fault, and the water pump driving module can continue to control the motor in the direct-current water pump.

[0110] The control method of the full direct-current gas water heater provided in the embodiment can adaptively adjust the starting speed of the motor in the direct-current water pump and the motor in the direct-current blower fan by acquiring the temperature of the blower fan driving module corresponding to the direct-current blower fan and the temperature of the water pump driving module corresponding to the direct-current water pump when the direct-current blower fan and the direct-current water pump in the full direct-current gas water heater need to be started. The starting speed of the motor in the direct-current water pump and the motor in the direct-current blower fan is adaptively adjusted, so that the ignition duration of the full direct-current gas water heater is adjusted, thereby avoiding the explosion caused by the ignition lag of the full direct-current gas water heater, and ensuring the use reliability of the full direct-current gas water heater and the safety of the user.

[0111] Reference is made to Figure 5 , Figure 5A structural schematic diagram of a control device of a full-DC gas water heater is provided in the embodiment. The control device of the full-DC gas water heater comprises a DC fan, a DC water pump, a fan driving module and a water pump driving module. The fan driving module is connected with the processing module and the DC fan, and the water pump driving module is connected with the processing module and the DC water pump. The device comprises an acquisition module 10, a determination module 20 and a control module 30. The acquisition module 10 is used to acquire a first temperature of the fan driving module if the DC fan needs to be started and a second temperature of the water pump driving module if the DC water pump needs to be started after the full-DC gas water heater is powered on. The determination module 20 is used to determine a first starting speed of a motor in the DC fan according to the first temperature after the first temperature is obtained, and determine a second starting speed of a motor in the DC water pump according to the second temperature after the second temperature is obtained. The control module 30 is used to control the motor in the DC fan according to the first starting speed after the first starting speed is obtained, and control the motor in the DC water pump according to the second starting speed after the second starting speed is obtained.

[0112] In the embodiment, the determination module 20 is further used to:

[0113] determine a first environment state corresponding to the full-DC gas water heater according to the first temperature.

[0114] when the first environment state is a low-temperature environment, determine a first and value between a first preset starting speed of the motor in the DC fan and a first preset adjustment speed, the first preset adjustment speed being a positive number, and the first preset starting speed being used to represent a starting speed of the motor in the DC fan in a non-low-temperature environment.

[0115] determine the first and value as the first starting speed of the motor in the DC fan.

[0116] In the embodiment, the control module 30 is further used to:

[0117] determine a first starting parameter of the motor corresponding to the first starting speed according to the first starting speed.

[0118] send the first starting parameter to the fan driving module, so that the fan driving module controls the motor in the DC fan by using the first starting parameter.

[0119] In the embodiment, the determination module 20 is further used to:

[0120] determine a second environmental state corresponding to the all-direct-current gas water heater according to the second temperature;

[0121] when the second environmental state is a low-temperature environment, determine a second sum value between a second preset starting speed of a motor in the direct-current water pump and a second preset adjusting speed, the second preset adjusting speed being a positive number, and the second preset starting speed being used to represent a starting speed of the motor in the direct-current water pump in a non-low-temperature environment;

[0122] determine the second sum value as a second starting speed of the motor in the direct-current water pump.

[0123] In the embodiment, the control module 30 is further configured to:

[0124] determine a second starting parameter of the motor corresponding to the second starting speed according to the second starting speed;

[0125] send the second starting parameter to the water pump driving module, so that the water pump driving module controls the motor in the direct-current water pump by using the second starting parameter.

[0126] In the embodiment, the acquisition module 10 is further configured to:

[0127] after the all-direct-current gas water heater is powered on, inject a high-frequency signal into the motor in the direct-current fan to determine a first motor parameter of the motor in the direct-current fan;

[0128] after the first motor parameter is obtained, if the direct-current fan needs to be started, acquire a first temperature on the fan driving module.

[0129] In the embodiment, the control module 30 is further configured to:

[0130] after the first starting speed is obtained, control the motor in the direct-current fan according to the first starting speed and the first motor parameter.

[0131] In the embodiment, the fan driving module and the processing module are pluggable connected.

[0132] In the embodiment, the acquisition module 10 is further configured to:

[0133] after the all-direct-current gas water heater is powered on, acquire a first connection signal between the fan driving module and the processing module;

[0134] when the first connection signal is a connection success, inject a high-frequency signal into the motor in the direct-current fan to determine a first motor parameter of the motor in the direct-current fan.

[0135] In the embodiment, the acquisition module 10 is further configured to:

[0136] after the full direct-current gas water heater is powered on, a high-frequency signal is injected into the motor in the direct-current water pump to determine a second motor parameter of the motor in the direct-current water pump;

[0137] after the second motor parameter is obtained, if it is determined that the direct-current water pump needs to be started, a second temperature of the water pump driving module is acquired.

[0138] In this embodiment, the control module 30 is further configured to:

[0139] after the second starting speed is obtained, the motor in the direct-current water pump is controlled according to the second starting speed and the second motor parameter.

[0140] In this embodiment, the water pump driving module is pluggable connected with the processing module.

[0141] In this embodiment, the acquisition module 10 is further configured to:

[0142] after the full direct-current gas water heater is powered on, a second connection signal between the water pump driving module and the processing module is acquired;

[0143] when the second connection signal is a connection success, a high-frequency signal is injected into the motor in the direct-current water pump to determine a second motor parameter of the motor in the direct-current water pump.

[0144] The control device of the full direct-current gas water heater provided in this embodiment, when the direct-current water pump and the direct-current water pump in the full direct-current gas water heater need to be started, the temperature of the fan driving module corresponding to the direct-current water pump and the temperature of the water pump driving module corresponding to the direct-current water pump are acquired to adaptively adjust the starting speed of the motor in the direct-current water pump and the motor in the direct-current water pump, so as to adjust the ignition time of the full direct-current gas water heater, thereby avoiding the deflagration caused by the ignition lag of the full direct-current gas water heater, and ensuring the use reliability of the full direct-current gas water heater and the life safety of the user.

[0145] Figure 6 Another structural schematic diagram of a full direct-current gas water heater provided in this embodiment. Figure 6 The full direct-current gas water heater 600 shown includes at least one processor 601, a memory 602, at least one network interface 604 and other user interfaces 603. The various components in the full direct-current gas water heater 600 are coupled together through a bus system 605. It can be understood that the bus system 605 is used to realize the connection communication between the components. In addition to the data bus, the bus system 605 also includes a power bus, a control bus and a state signal bus. However, for the purpose of clear illustration, only the data bus is shown in the figure. Figure 6Various buses are labeled as bus 605.

[0146] The user interface 603 can include a display, a keyboard, or a pointing device (e.g., a mouse, a trackball, a touchpad, or a touchscreen).

[0147] It can be understood that the memory 602 in the embodiments of the present application can be a volatile memory or a nonvolatile memory, or can include both volatile and nonvolatile memory. The nonvolatile memory can be a Read-Only Memory (ROM), a Programmable ROM (PROM), an Erasable PROM (EPROM), an Electrically EPROM (EEPROM), or a flash memory. The volatile memory can be a Random Access Memory (RAM) used as an external cache. By way of example, and not limitation, many forms of RAM are available, such as Static RAM (SRAM), Dynamic RAM (DRAM), Synchronous DRAM (SDRAM), Double Data Rate SDRAM (DDR SDRAM), Enhanced SDRAM (ESDRAM), Synchlink DRAM (SLDRAM), and Direct Rambus RAM (DRRAM). The memory 602 described herein is intended to include, without being limited to, these and any other suitable types of memory.

[0148] In some embodiments, the memory 602 stores the following elements, executable units or data structures, or a subset thereof, or an extended set thereof: an operating system 6021 and an application program 6022.

[0149] The operating system 6021 includes various system programs, such as a framework layer, a core library layer, a driver layer, etc., for implementing various basic services and processing hardware-based tasks. The application program 6022 includes various application programs, such as a Media Player, a Browser, etc., for implementing various application services. The program for implementing the method of the embodiments of the present application can be included in the application program 6022.

[0150] In the embodiments of the present application, the processor 601 is configured to execute the method steps provided by the embodiments of the method by invoking the programs or instructions stored in the memory 602, specifically, the programs or instructions stored in the application program 6022. For example, the processor 601 is configured to execute the following method steps: after the all-direct-current gas water heater is powered on, if the direct-current fan needs to be started, the first temperature of the fan driving module is obtained, and if the direct-current water pump needs to be started, the second temperature of the water pump driving module is obtained; after the first temperature is obtained, the first starting speed of the motor in the direct-current fan is determined according to the first temperature, and after the second temperature is obtained, the second starting speed of the motor in the direct-current water pump is determined according to the second temperature; after the first starting speed is obtained, the motor in the direct-current fan is controlled according to the first starting speed, and after the second starting speed is obtained, the motor in the direct-current water pump is controlled according to the second starting speed.

[0151] The method disclosed in the embodiments of the present application can be applied to the processor 601 or implemented by the processor 601. The processor 601 can be an integrated circuit chip having a signal processing capability. In the implementation process, each step of the above method can be completed by an integrated logic circuit or an instruction in the form of software in the processor 601. The processor 601 described above can be a general-purpose processor, a digital signal processor (DSP), an application specific integrated circuit (ASIC), a field programmable gate array (FPGA) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components. Each method, step and logic block diagram disclosed in the embodiments of the present application can be implemented or executed. The general-purpose processor can be a microprocessor or the processor can also be any conventional processor. The steps of the method disclosed in conjunction with the embodiments of the present application can be directly embodied as a hardware code processor for execution, or a combination of hardware and software units in the code processor for execution. The software unit can be located in a random access memory, a flash memory, a read-only memory, a programmable read-only memory or an electrically erasable programmable memory, a register or other mature storage media in the art. The storage medium is located in the memory 602, and the processor 601 reads the information in the memory 602 and completes the steps of the above method in combination with the hardware.

[0152] It can be understood that the embodiments described herein can be implemented in hardware, software, firmware, middleware, microcode, or a combination thereof. For hardware implementation, the processing units can be implemented within one or more application specific integrated circuits (ASICs), digital signal processors (DSPs), digital signal processing devices (DSP Devices, DSPDs), programmable logic devices (PLDs), field programmable gate arrays (FPGAs), general purpose processors, controllers, micro-controllers, microprocessors, other electronic units designed to perform the functions described herein, or a combination thereof.

[0153] For software implementation, the techniques described herein can be implemented with a processing unit that executes program code that includes functions described herein. The program code can be stored in a memory and executed by a processor. The memory can be implemented within the processor or external to the processor.

[0154] The all-direct-current gas water heater provided by the embodiment can be an all-direct-current gas water heater as shown in Figure 6 The all-direct-current gas water heater provided by the embodiment can be an all-direct-current gas water heater as shown in Figures 1-3 The all-direct-current gas water heater provided by the embodiment can be an all-direct-current gas water heater as shown in Figures 1-3 The all-direct-current gas water heater provided by the embodiment can be an all-direct-current gas water heater as shown in Figures 1-3 The all-direct-current gas water heater provided by the embodiment can be an all-direct-current gas water heater as shown in

[0155] The embodiment of the present application further provides a storage medium (computer readable storage medium). The storage medium stores one or more programs. The storage medium can include a volatile memory, such as a random access memory; the storage medium can also include a non-volatile memory, such as a read-only memory, a flash memory, a hard disk, or a solid state disk; and the storage medium can also include a combination of the above-mentioned memories.

[0156] When the one or more programs stored in the storage medium can be executed by one or more processors, the all-direct-current gas water heater control method executed by the control device of the all-direct-current gas water heater can be implemented.

[0157] The processor is configured to execute a control program of the all-direct-current gas water heater stored in the memory to implement the following steps of the control method of the all-direct-current gas water heater executed on the control device side of the all-direct-current gas water heater: after the all-direct-current gas water heater is powered on, if the direct-current fan needs to be started, obtaining a first temperature of a fan driving module, and if the direct-current water pump needs to be started, obtaining a second temperature of a water pump driving module; after the first temperature is obtained, determining a first starting speed of a motor in the direct-current fan according to the first temperature, and after the second temperature is obtained, determining a second starting speed of a motor in the direct-current water pump according to the second temperature; after the first starting speed is obtained, controlling the motor in the direct-current fan according to the first starting speed, and after the second starting speed is obtained, controlling the motor in the direct-current water pump according to the second starting speed.

[0158] Those skilled in the art should further understand that the units and algorithm steps of each example described in combination with the embodiments disclosed herein can be realized in electronic hardware, computer software or a combination of both. In order to clearly illustrate the interchangeability of hardware and software, the components and steps of each example have been described in the above description in general terms. Whether the functions are performed in hardware or software depends on the specific application and design constraints of the technical solution. Those skilled in the art can use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of the present application.

[0159] It should be noted that in the specification, "one embodiment", "an embodiment", "exemplary embodiment", "some embodiments" and the like mean that the described embodiment can include a particular feature, structure or characteristic, but not necessarily every embodiment. In addition, such phrases do not necessarily refer to the same embodiment. In addition, when a particular feature, structure or characteristic is described in connection with an embodiment, it is within the knowledge of those skilled in the art to implement such feature, structure or characteristic in connection with other embodiments described explicitly or implicitly.

[0160] It should be noted that in this paper, relationship terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between the entities or operations. Moreover, the terms "include", "contain" or any other variant thereof are intended to cover non-exclusive inclusion, so that the process, method, article or device including a series of elements not only includes those elements, but also includes other elements not explicitly listed or inherent to such process, method, article or device. Without more limitations, the element defined by the statement "including a" does not exclude the presence of other identical elements in the process, method, article or device including the element.

[0161] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, and are not intended to limit the same; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacements for part or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A control method of a full direct current gas water heater, characterized by, A processing module applied in the aforementioned all-DC gas water heater, the all-DC gas water heater further comprising a DC fan, a DC water pump, a fan drive module, and a water pump drive module, the fan drive module being connected to the processing module and the DC fan, and the water pump drive module being connected to the processing module and the DC water pump, the method comprising: After the all-DC gas water heater is powered on, if it is necessary to start the DC fan, the first temperature of the fan drive module is obtained; and if it is necessary to start the DC water pump, the second temperature of the water pump drive module is obtained. After obtaining the first temperature, the first starting speed of the motor in the DC fan is determined based on the first temperature, and after obtaining the second temperature, the second starting speed of the motor in the DC water pump is determined based on the second temperature. After obtaining the first starting speed, the motor in the DC fan is controlled according to the first starting speed; and after obtaining the second starting speed, the motor in the DC water pump is controlled according to the second starting speed. The step of determining the first starting speed of the motor in the DC fan based on the first temperature includes: Based on the first temperature, determine the first environmental state corresponding to the all-DC gas water heater; When the first environmental condition is a low temperature environment, a first sum value between the first preset starting speed and the first preset adjustment speed of the motor in the DC fan is determined. The first preset adjustment speed is a positive number. The first preset starting speed is used to characterize the starting speed of the motor in the DC fan when it is not in a low temperature environment. The first sum is determined as the first starting speed of the motor in the DC fan; The step of controlling the motor in the DC fan according to the first starting speed includes: Based on the first starting speed, determine the first starting parameters of the motor corresponding to the first starting speed; The first start-up parameter is sent to the fan drive module so that the fan drive module can use the first start-up parameter to control the motor in the DC fan.

2. The method of claim 1, wherein, Determining the second starting speed of the motor in the DC water pump based on the second temperature includes: Based on the second temperature, determine the second environmental state corresponding to the all-DC gas water heater; When the second environmental state is a low temperature environment, a second sum between the second preset starting speed and the second preset adjustment speed of the motor in the DC water pump is determined. The second preset adjustment speed is a positive number. The second preset starting speed is used to characterize the starting speed of the motor in the DC water pump in a non-low temperature environment. The second sum is determined as the second starting speed of the motor in the DC water pump; The step of controlling the motor in the DC water pump according to the second starting speed includes: Based on the second starting speed, determine the second starting parameters of the motor corresponding to the second starting speed; The second start parameter is sent to the water pump drive module so that the water pump drive module can use the second start parameter to control the motor in the DC water pump.

3. The method of claim 1, wherein, The method further includes: After the all-DC gas water heater is powered on, a high-frequency signal is injected into the motor of the DC fan to determine the first motor parameters of the motor in the DC fan; After obtaining the first motor parameters, the step of obtaining the first temperature on the fan drive module if the DC fan needs to be started is executed; After obtaining the first starting speed, controlling the motor in the DC fan according to the first starting speed includes: After obtaining the first starting speed, the motor in the DC fan is controlled according to the first starting speed and the first motor parameters.

4. The method of claim 3, wherein, The fan drive module and the processing module are pluggably connected. After the all-DC gas water heater is powered on, a high-frequency signal is injected into the motor of the DC fan to determine the first motor parameters of the motor in the DC fan, including: After the all-DC gas water heater is powered on, a first connection signal is obtained between the fan drive module and the processing module; When the first connection signal indicates a successful connection, a high-frequency signal is injected into the motor of the DC fan to determine the first motor parameters of the motor in the DC fan.

5. The method of claim 1, wherein, The method further includes: After the all-DC gas water heater is powered on, a high-frequency signal is injected into the motor of the DC water pump to determine the second motor parameters of the motor in the DC water pump; After obtaining the second motor parameters, the second temperature step of obtaining the water pump drive module is performed if the DC water pump needs to be started. After obtaining the second starting speed, controlling the motor in the DC water pump according to the second starting speed includes: After obtaining the second starting speed, the motor in the DC fan is controlled according to the second starting speed and the second motor parameters.

6. The method according to claim 5, characterized in that, The water pump drive module is pluggably connected to the processing module; After the all-DC gas water heater is powered on, a high-frequency signal is injected into the motor of the DC water pump to determine the second motor parameters of the motor in the DC water pump, including: After the all-DC gas water heater is powered on, a second connection signal is obtained between the water pump drive module and the processing module; When the second connection signal indicates a successful connection, a high-frequency signal is injected into the motor of the DC water pump to determine the second motor parameters of the motor in the DC water pump.

7. A control device for a fully DC gas water heater, characterized in that, The all-DC gas water heater includes a DC fan, a DC water pump, a fan drive module, and a water pump drive module. The fan drive module is connected to the processing module and the DC fan, and the water pump drive module is connected to the processing module and the DC water pump. The device includes: The acquisition module is used to acquire the first temperature of the fan drive module if the DC fan needs to be started after the all-DC gas water heater is powered on, and to acquire the second temperature of the water pump drive module if the DC water pump needs to be started. The determining module is used to determine the first starting speed of the motor in the DC fan based on the first temperature after obtaining the first temperature, and to determine the second starting speed of the motor in the DC water pump based on the second temperature after obtaining the second temperature. The control module is used to control the motor in the DC fan according to the first starting speed after obtaining the first starting speed, and to control the motor in the DC water pump according to the second starting speed after obtaining the second starting speed; The step of determining the first starting speed of the motor in the DC fan based on the first temperature includes: Based on the first temperature, determine the first environmental state corresponding to the all-DC gas water heater; When the first environmental condition is a low temperature environment, a first sum value between the first preset starting speed and the first preset adjustment speed of the motor in the DC fan is determined. The first preset adjustment speed is a positive number. The first preset starting speed is used to characterize the starting speed of the motor in the DC fan when it is not in a low temperature environment. The first sum is determined as the first starting speed of the motor in the DC fan; The step of controlling the motor in the DC fan according to the first starting speed includes: Based on the first starting speed, determine the first starting parameters of the motor corresponding to the first starting speed; The first start-up parameter is sent to the fan drive module so that the fan drive module can use the first start-up parameter to control the motor in the DC fan.

8. A fully DC gas water heater, characterized in that, include: A processor and a memory, the processor being configured to execute a control program for a fully DC gas water heater stored in the memory, to implement the control method for a fully DC gas water heater as described in any one of claims 1 to 6.

9. A storage medium, characterized in that, The storage medium stores one or more programs, which can be executed by one or more processors to implement the control method for the all-DC gas water heater as described in any one of claims 1 to 6.

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