Driving device of water pump and steam box

Abstract

The utility model discloses a driving device of a water pump and a steam box, the driving device is integrated on an electric control board, the driving device is electrically connected with an instruction control unit of the electric control board, the driving device comprises a driving module and a detection module, the water pump comprises a driving instruction receiving unit and a detection signal output unit, and the detection signal output unit is electrically connected with the driving module. The driving module comprises a power supply end, a conduction structure and a driving instruction output unit, and the power supply end is electrically connected with the power supply output end of the electric control board; the driving instruction output unit is electrically connected with the driving instruction receiving unit so as to drive the water pump; the detection module is electrically connected with the detection signal output unit and the instruction control unit so as to detect the working state of the water pump. Power is supplied to the water pump through the driving module and the detection module to achieve the function of controlling water supply of the water pump, and the safety of an electric appliance where a user uses the water pump is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to water pump drive technical field, especially relate to a drive arrangement and steam box of water pump. BACKGROUND

[0002] In the application of modern household appliances, water pump is often used in the case of needing water participation, such as the case of using water to clean in dishwasher, the case of needing water to produce steam in steam box etc., and the control of water pump is particularly important in the daily use of household appliances.

[0003] In the prior art, water pump is controlled through the drive circuit on an electric control board, when a short-circuit failure fault occurs in a certain electronic component in the circuit, the water pump may be continuously pumped and cannot be stopped. Since the water storage capacity of the lower wall of the cavity is limited, when the water amount overflows the lower wall, it will overflow outside the cavity, which may cause safety problems such as electric leakage and endanger the user. Therefore, a safe and reliable water pump drive device is needed to solve the above problems. SUMMARY

[0004] The utility model provides a drive arrangement and steam box of water pump, through drive module and detection module to water pump power supply, to realize the function of controlling water pump water supply, solve the problem of improving the safety of the electric appliance of user's using water pump.

[0005] According to one aspect of the utility model, a water pump drive device is provided,

[0006] The drive device is integrally arranged on the electric control board, the drive device is electrically connected with the instruction control unit of the electric control board, the drive device comprises a drive module and a detection module, the water pump comprises a drive instruction receiving unit and a detection signal output unit,

[0007] The drive module comprises a power supply end, a conduction structure and a drive instruction output unit, the power supply end is electrically connected with the power output end of the electric control board, the conduction structure is constructed in series based on a first conduction structure and a second conduction structure, the first conduction structure is electrically connected with the power supply end, and the second conduction structure is electrically connected with the drive instruction output unit;

[0008] The drive instruction output unit is electrically connected with the drive instruction receiving unit to drive the water pump;

[0009] The detection module is electrically connected with the detection signal output unit and the instruction control unit respectively to detect the working state of the water pump.

[0010] Further, the drive module further comprises a first instruction processing unit and a second instruction processing unit,

[0011] The first instruction processing unit is electrically connected with the instruction control unit to receive instructions output by the instruction control unit.

[0012] The second instruction processing unit is electrically connected with the first instruction processing unit to receive signals output by the first instruction processing unit.

[0013] Further, the first instruction processing unit comprises a control instruction receiving port, a first resistor, a second resistor and a third resistor,

[0014] The first resistor, the second resistor and the third resistor are electrically connected with the control instruction receiving port respectively;

[0015] The first resistor, the second resistor and the third resistor are in parallel.

[0016] Further, the first instruction processing unit further comprises a first switch, a second switch and a third switch, the first switch comprises a first port and a second port, the second switch comprises a first pin, a second pin and a third pin, and the third switch comprises a fourth pin, a fifth pin and a sixth pin,

[0017] The first port of the first switch is electrically connected with the first resistor, and the second port of the first switch is electrically connected with the first pin of the second switch;

[0018] The fourth pin of the third switch is electrically connected with the second resistor, and the fifth pin of the third switch is electrically connected with a ground terminal;

[0019] The sixth pin of the third switch is electrically connected with the second pin of the second switch, so that the third switch and the second switch are in series;

[0020] The third pin of the second switch is electrically connected with the second instruction processing unit to output signals of the second instruction processing unit.

[0021] Further, the second instruction processing unit comprises a signal receiving port, a fourth resistor and a fifth resistor,

[0022] The fourth resistor and the fifth resistor are electrically connected with the signal receiving port respectively, and the fourth resistor and the fifth resistor are in parallel.

[0023] Further, the second instruction processing unit further comprises a fourth switch, the fourth switch comprises a third port and a fourth port,

[0024] The fourth resistor is electrically connected with the first conduction structure;

[0025] The third port of the fourth switch is electrically connected with the fifth resistor, and the fourth port of the fourth switch is electrically connected with the second conduction structure.

[0026] The first conduction structure and the second conduction structure are connected in series and electrically connected, and the electric control board connects the water pump with preset power supply signals through the first conduction structure and the second conduction structure.

[0027] Further, the first conduction structure comprises a sixth resistor and a fifth switch, the second conduction structure comprises a seventh resistor and a sixth switch,

[0028] The sixth resistor and the fifth switch are connected in parallel, and the seventh resistor and the sixth switch are connected in parallel.

[0029] The fifth switch and the sixth switch are connected in series and electrically connected, so that the first conduction structure and the second conduction structure are connected in series.

[0030] Further, the detection module comprises a detection signal receiving port, an eighth resistor and a ninth resistor,

[0031] The detection signal receiving port is electrically connected with the eighth resistor and the ninth resistor respectively.

[0032] Further, the detection module further comprises a detection information output port,

[0033] The detection information output port is electrically connected with the eighth resistor.

[0034] The detection information output port is electrically connected with the instruction control unit, and the detection module is electrically connected with the instruction control unit through the detection information output port.

[0035] In another aspect, the utility model also provides a steam oven, the steam oven includes the drive arrangement of water pump as any above described, electric control board and water pump,

[0036] The drive arrangement is integrally arranged on the electric control board, and the drive arrangement is electrically connected with the water pump.

[0037] The utility model has the advantages of:

[0038] The utility model provides a kind of driving device of water pump, the driving device is integrally arranged on electric control board, the instruction control unit of the driving device with electric connection of electric control board, the driving device includes drive module and detection module, the water pump includes drive instruction receiving unit and detection signal output unit, the drive module includes power supply end, conducting structure and drive instruction output unit, the power supply end with the power output terminal of electric connection of electric control board, the conducting structure is based on first conducting structure and second conducting structure series connection construction, the first conducting structure with the power supply end electric connection, the second conducting structure with drive instruction output unit electric connection;Drive instruction output unit with drive instruction receiving unit electric connection, to drive the water pump;The detection module is electrically connected with the detection signal output unit and the instruction control unit respectively, to detect the working state of the water pump.The power supply of water pump is carried out by drive module and detection module, to realize the function of controlling water pump water supply, avoids the risk of electric leakage caused by water pump pumping water after being powered on, solves the problem of improving the safety of the electric appliance that user uses water pump. BRIEF DESCRIPTION OF DRAWINGS

[0039] In order to more clearly illustrate the technical scheme in the embodiment of the utility model, the drawings needed to be used in the embodiment description will be simply introduced below, and obviously, the drawings in the following description are only some embodiments of the utility model, and other drawings can be obtained according to these drawings without creative labor for those skilled in the art.

[0040] Figure 1 It is the first structure schematic block diagram of the driving device of water pump provided by the utility model embodiment;

[0041] Figure 2 It is the second structure schematic block diagram of the driving device of water pump provided by the utility model embodiment;

[0042] Figure 3 It is the third structure schematic block diagram of the driving device of water pump provided by the utility model embodiment;

[0043] Figure 4 It is the circuit diagram of the driving device of water pump provided by the utility model embodiment.

[0044] Among them, the corresponding figure mark in the drawing is: 1-driving device, 2-electric control board, 3-instruction control unit, 4-drive module, 5-detection module, 6-water pump, 7-drive instruction receiving unit, 8-detection signal output unit, 9-power supply end, 10-drive instruction output unit, 11-first conducting structure, 12-second conducting structure, 13-first instruction processing unit, 14-second instruction processing unit. DETAILED DESCRIPTION

[0045] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0046] In modern household appliances, water pumps are frequently used in applications requiring water, such as dishwashers that use water for washing and steam ovens that use water to generate steam. Typically, water pumps are controlled by a drive circuit on an electronic control board. If a short circuit occurs in an electronic component of this circuit, the pump may continuously pump water without stopping. Since the lower wall of the appliance has limited water storage, water may overflow when it overflows the lower wall, potentially causing electrical leakage and other safety hazards, posing a danger to the user.

[0047] like Figure 1 and Figure 2 As shown in the figure, this utility model discloses a water pump drive device. The drive device 1 is integrated on the electronic control board 2. The drive device 1 is electrically connected to the command control unit 3 of the electronic control board 2. The drive device 1 includes a drive module 4 and a detection module 5. The water pump 6 includes a drive command receiving unit 7 and a detection signal output unit 8.

[0048] The drive module 4 includes a power supply terminal 9, a conduction structure, and a drive command output unit 11. The power supply terminal 9 is electrically connected to the power output terminal of the electronic control board 2. The conduction structure is constructed by connecting a first conduction structure 11 and a second conduction structure 12 in series. The first conduction structure 11 is electrically connected to the power supply terminal 9, and the second conduction structure 12 is electrically connected to the drive command output unit 10.

[0049] The drive command output unit 10 is electrically connected to the drive command receiving unit 7 to drive the water pump 6;

[0050] The detection module 5 is electrically connected to the detection signal output unit 8 and the command control unit 3 respectively, so as to detect the working status of the water pump 6.

[0051] Optionally, such as Figure 1 As shown, the electronic control board 2 includes an instruction control unit 3, which is an MCU (Microcontroller Unit) used to output instructions to the drive device 1.

[0052] Optionally, such as Figure 2As shown, the electric control board 2 comprises a power output end for outputting a power signal, and the power supply end 9 is electrically connected to the power output end of the electric control board 2 to obtain a power supply signal.

[0053] Optionally, as shown in the figure, Figure 1 The driving module 4 is electrically connected to the instruction control unit 3 to receive the instruction output by the instruction control unit 3.

[0054] Optionally, as shown in the figure, Figure 1 The driving module 4 is electrically connected to the driving instruction receiving unit 7 to control the power supply of the water pump 6 according to the instruction output by the instruction control unit 3.

[0055] Optionally, as shown in the figure, Figure 1 The detection signal output unit 8 is electrically connected to the detection module 5 to enable the detection module 5 to obtain the working state information of the water pump 6.

[0056] Optionally, as shown in the figure, Figure 1 The detection module 5 is electrically connected to the instruction control unit 3 to feed back the working state information of the water pump 6 to the instruction control unit 3, and the instruction control unit 3 outputs instruction information based on the working state information of the water pump 6.

[0057] Optionally, the driving module 4 further comprises a first instruction processing unit 13 and a second instruction processing unit 14,

[0058] The first instruction processing unit 13 is electrically connected to the instruction control unit 3 to receive the instruction output by the instruction control unit 3;

[0059] The second instruction processing unit 14 is electrically connected to the first instruction processing unit 13 to receive the signal output by the first instruction processing unit 13.

[0060] Optionally, as shown in the figure, Figure 2 The driving module 4 further comprises a first instruction processing unit 13 and a second instruction processing unit 14, the first instruction processing unit 13 is electrically connected to the instruction control unit 3 to receive the instruction output by the instruction control unit 3, and the second instruction processing unit 14 is electrically connected to the first instruction processing unit 13 to receive the signal output by the first instruction processing unit 13.

[0061] Optionally, as shown in the figure, Figure 2 The second instruction processing unit 14 is electrically connected to the first conduction structure 11 to output a signal to the first conduction structure 11.

[0062] In this embodiment, the first instruction processing unit 13 and the second instruction processing unit 14 process the instruction sent by the instruction control unit 3, so as to facilitate subsequent power supply control of the water pump according to the processing result.

[0063] Optionally, the first instruction processing unit 13 comprises a control instruction receiving port, a first resistor, a second resistor and a third resistor,

[0064] The first resistor, the second resistor and the third resistor are electrically connected with the control instruction receiving port respectively;

[0065] The first resistor, the second resistor and the third resistor are in parallel.

[0066] Optionally, the first instruction processing unit 13 further comprises a first switch, a second switch and a third switch, the first switch comprises a first port and a second port, the second switch comprises a first pin, a second pin and a third pin, and the third switch comprises a fourth pin, a fifth pin and a sixth pin,

[0067] The first port of the first switch is electrically connected with the first resistor, and the second port of the first switch is electrically connected with the first pin of the second switch;

[0068] The fourth pin of the third switch is electrically connected with the second resistor, and the fifth pin of the third switch is electrically connected with a ground terminal;

[0069] The sixth pin of the third switch is electrically connected with the second pin of the second switch, so that the third switch and the second switch are in series;

[0070] The third pin of the second switch is electrically connected with the second instruction processing unit 14, so as to output a signal to the second instruction processing unit 14.

[0071] Optionally, as shown in the figure, Figure 4 The first instruction processing unit 13 is a circuit composed of the first resistor R5, the second resistor R6 and the third resistor R7 in parallel.

[0072] Optionally, as shown in the figure, Figure 4 The first switch is a diode D2, the second switch is a triode Q1, and the third switch is a triode Q2.

[0073] Optionally, as shown in the figure, Figure 4As shown, the first resistor R5 and the second resistor R6 are used to drive the transistors Q1 and Q2, the third resistor R7 is electrically connected with the ground terminal GND, and the third resistor R7 is a pull-down resistor. Specifically, the first resistor R5, the second resistor R6, and the third resistor R7 have equal resistance values, and the resistance value is preferably 4.7kΩ.

[0074] In this embodiment, the second switch and the third switch are connected in series, so that when one of the switches fails, such as short circuit, the other switch can still be controlled, and the unidirectional conduction of the first switch can prevent the second switch and the third switch from being turned on at the same time, thereby improving the safety of the water pump control.

[0075] Optionally, the second instruction processing unit 14 includes a signal receiving port, a fourth resistor, and a fifth resistor,

[0076] The fourth resistor and the fifth resistor are respectively electrically connected with the signal receiving port, and the fourth resistor and the fifth resistor are connected in parallel.

[0077] Optionally, the second instruction processing unit 14 further includes a fourth switch, and the fourth switch includes a third port and a fourth port,

[0078] The fourth resistor is electrically connected with the first conduction structure 11;

[0079] The third port of the fourth switch is electrically connected with the fifth resistor, and the fourth port of the fourth switch is electrically connected with the second conduction structure 12;

[0080] The first conduction structure 11 and the second conduction structure 12 are connected in series and electrically connected, and the electric control board 2 applies a preset power supply signal to the water pump 6 through the first conduction structure 11 and the second conduction structure 12.

[0081] Optionally, the first conduction structure 11 includes a sixth resistor and a fifth switch, and the second conduction structure includes a seventh resistor and a sixth switch,

[0082] The sixth resistor and the fifth switch are connected in parallel, and the seventh resistor and the sixth switch are connected in parallel;

[0083] The fifth switch and the sixth switch are connected in series and electrically connected, so that the first conduction structure 11 and the second conduction structure 12 are connected in series.

[0084] Optionally, as Figure 4 As shown, the second instruction processing unit 14 is a circuit constructed based on the fourth resistor R2 and the fifth resistor R4 connected in parallel.

[0085] Optionally, as Figure 4As shown, the first conducting structure 11 includes a sixth resistor R1 and a fifth switch MOS1; the second conducting structure 11 includes a seventh resistor R3 and a sixth switch MOS2. Specifically, the sixth resistor R1 and the seventh resistor R3 are pull-up resistors, and the resistance values ​​of the sixth resistor R1 and the seventh resistor R3 are equal, preferably 10kΩ.

[0086] Optionally, such as Figure 4 As shown, the fourth switch D1 is connected in series between the fifth resistor R4 and the second conducting structure 11.

[0087] Optionally, such as Figure 4 As shown, the resistance values ​​of the fourth resistor R2 and the fifth resistor R4 are equal, and they are used to turn on MOS1 and MOS2. Preferably, the resistance is 1kΩ.

[0088] Optionally, such as Figure 4 As shown, the electronic control board 2 is connected to a +12V electrical signal through the power supply terminal 9.

[0089] In this embodiment, the water pump is powered by connecting the first and second conductive structures in series. This allows the pump to be controlled even if one conductive structure experiences a short circuit or other fault. In addition, the unidirectional conductivity of the fourth switch prevents the first and second conductive structures from conducting simultaneously, making the pump's operation controllable. This avoids the risk of water overflowing into the steamer chamber and causing electrical leakage if the pump is not controlled and continues to pump uncontrollably.

[0090] Optionally, the detection module 5 includes a detection signal receiving port, an eighth resistor, and a ninth resistor.

[0091] The detection signal receiving port is electrically connected to the eighth resistor and the ninth resistor, respectively.

[0092] Optionally, the detection module 5 further includes a detection information output port.

[0093] The detection information output port is electrically connected to the eighth resistor;

[0094] The detection information output port is electrically connected to the command control unit 3, and the detection module 5 is electrically connected to the command control unit 3 through the detection information output port.

[0095] Optionally, such as Figure 4 As shown, the detection module 5 is a circuit built based on the eighth resistor R8 and the ninth resistor R9. R9 is a sampling resistor, electrically connected to the ground terminal GND.

[0096] Optionally, such as Figure 4As shown, the water pump 6 feeds back the sampling current in the water pump working state to the instruction control unit 3 through R8. Specifically, the sampling current in the water pump working state is AD_water pump current.

[0097] Optionally, as shown, Figure 4 As shown, a protection circuit is built between the eighth resistor R8 and the detection information output port, and the protection circuit is built by a diode D3 and a capacitor C1. One end of the diode D3 has a +5V electrical signal, and the other end is electrically connected with R8. When the sampling current in the water pump working state is too large, the electrical connection between the detection information output port and the instruction control unit 3 is disconnected, so as to avoid damaging the instruction control unit 3.

[0098] In this embodiment, the working state of the water pump is monitored by the detection module, and the monitoring result is transmitted to the instruction control unit, so that the instruction control unit calculates the current flowing through the water pump according to the monitoring result. According to different current values, whether the water pump works and whether there is water can be monitored, the understanding of the working state of the water pump is improved, and then the control of the water pump is improved, and the safety and reliability in the application of the water pump are improved.

[0099] As shown, ​ The working principle of the circuit of the driving device of the water pump in the embodiment of the utility model is as follows:

[0100] When the water pump needs to work, the MCU on the electric control board outputs a high level to the "O_water pump" line of the circuit, at this time, R5, D2, R6, R7 are powered on, Q1 and Q2 triodes are turned on, and then the driving circuit composed of R1, R2, MOS1, R3, R4, D1, MOS2 works, the power supply +12V supplies power to the water pump CN1 through MOS1 and MOS2, and the water pump starts to work. When the water pump needs to stop working, the MCU outputs a low level to the "O_water pump" line, at this time, Q1, Q2, MOS1 and MOS2 are not turned on, and the water pump is not powered on. The water pump is connected with R9 resistor, when the water pump works, R9 works as a sampling resistor of the water pump working current, and the current flowing through R9 is equal to the current flowing through the water pump. The current generates a voltage drop on R9, and the voltage drop is output to "AD_water pump current" through R8, and then connected to the MCU. The MCU reads the voltage value, and calculates the current flowing through the water pump. According to different current values, whether the water pump works and whether there is water can be monitored, and then the MCU can control the whole machine to take relevant measures. If the water pump is still detected to work when the driving resistor controls the water pump to stop working, the user can be reminded by the external controller.

[0101] The circuit of the driving device of the water pump has the following beneficial effects: since electronic components all have failure risk, when the water pump needs to stop working, if a single component, such as Q1 or Q2 or MOS1 or MOS2, has a short circuit failure or other failure between its pins, another component (such as Q1 and Q2 are in series, and MOS1 and MOS2 are in series) connected in series with the single component, plus the one-way conduction of D1 and D2, can prevent Q1 and Q2 from being turned on at the same time, or can prevent MOS1 and MOS2 from being turned on at the same time. In this way, the water pump cannot work with power supply, and the risk of leakage caused by uncontrolled continuous pumping of water into the cavity of the electrical appliance and then overflowing of the water out of the cavity is avoided. Similarly, when other single resistors or diodes fail, the water pump cannot work with power supply, and the risk of leakage is thus avoided.

[0102] The utility model discloses an embodiment further discloses a steam box, the steam box includes the driving device of water pump as any above, electric control board 2 and water pump 6,

[0103] The driving device 1 is integrally arranged on the electric control board 2, and the driving device 1 is electrically connected with the water pump 6.

[0104] The utility model discloses an embodiment further discloses a steam box, the steam box includes the driving device of water pump as any above, electric control board 2 and water pump 6,

[0105] The utility model provides a kind of driving device of water pump, the driving device is integrally arranged on electric control board, the driving device is electrically connected with the instruction control unit of the electric control board, the driving device includes drive module and detection module, the water pump includes drive instruction receiving unit and detection signal output unit, the drive module includes power supply end, conduction structure and drive instruction output unit, the power supply end is electrically connected with the power output end of the electric control board, the conduction structure is based on first conduction structure and second conduction structure series connection construction, the first conduction structure is electrically connected with the power supply end, the second conduction structure is electrically connected with the drive instruction output unit;The drive instruction output unit is electrically connected with the drive instruction receiving unit, to drive the water pump;The detection module is electrically connected with the detection signal output unit and the instruction control unit respectively, to detect the working state of the water pump. Water pump is powered by drive module and detection module, to realize the function of controlling water pump water supply, avoid the risk of leakage caused by water pump working with power supply all the time, solve the problem of improving the safety of electrical appliance that user uses water pump.

[0106] In the utility model, unless another definite provision and limitation, the term "link", "connection" and other terms should do broad sense understanding, for example, can be fixed connection, also can be detachable connection, or be integrated;Can be mechanical connection, also can be electrical connection;Can be directly connected, also can be indirectly connected through intermediate medium, can be two elements inside the connection or two element interaction relationship. For ordinary skilled in the art, the above terms can be understood according to the specific meaning of the specific embodiment in the application.

[0107] It should be noted that: the above-mentioned embodiment of the utility model is merely for description, not represents the pros and cons of the embodiment, and the above-mentioned specification describes a specific embodiment, other embodiments are within the scope of the appended claims. In some cases, the actions or steps recorded in the claims can be executed in different embodiments and can achieve the expected results. In addition, the process depicted in the drawings does not necessarily require a specific order or connection order to achieve the desired results, and in some embodiments, multiple tasks can be processed in parallel or may be advantageous.

[0108] Each embodiment in the specification is described in a progressive manner, and the same or similar parts between each embodiment can be referred to each other, and each embodiment focuses on the difference from other embodiments.

[0109] The above is only the preferred embodiment of the utility model, and does not limit the utility model, any modification, equivalent replacement, improvement, etc. within the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. A driving device for a water pump, characterized in that, The drive device (1) is integrated on the electronic control board (2). The drive device (1) is electrically connected to the command control unit (3) of the electronic control board (2). The drive device (1) includes a drive module (4) and a detection module (5). The water pump (6) includes a drive command receiving unit (7) and a detection signal output unit (8). The drive module (4) includes a power supply terminal (9), a conduction structure, and a drive command output unit (10). The power supply terminal (9) is electrically connected to the power output terminal of the electronic control board (2). The conduction structure is constructed by connecting a first conduction structure (11) and a second conduction structure (12) in series. The first conduction structure (11) is electrically connected to the power supply terminal (9), and the second conduction structure (12) is electrically connected to the drive command output unit (10). The drive command output unit (10) is electrically connected to the drive command receiving unit (7) to drive the water pump (6); The detection module (5) is electrically connected to the detection signal output unit (8) and the command control unit (3) respectively to detect the working status of the water pump (6).

2. The pump drive device according to claim 1, characterized in that, The drive module (4) further includes a first instruction processing unit (13) and a second instruction processing unit (14). The first instruction processing unit (13) is electrically connected to the instruction control unit (3) to receive instructions output by the instruction control unit (3); The second instruction processing unit (14) is electrically connected to the first instruction processing unit (13) to receive the signal output by the first instruction processing unit (13).

3. The pump drive device according to claim 2, characterized in that, The first instruction processing unit (13) includes a control instruction receiving port, a first resistor, a second resistor, and a third resistor. The first resistor, the second resistor, and the third resistor are each electrically connected to the control command receiving port; The first resistor, the second resistor, and the third resistor are connected in parallel.

4. The pump drive device according to claim 3, characterized in that, The first instruction processing unit (13) further includes a first switch, a second switch, and a third switch. The first switch includes a first port and a second port. The second switch includes a first pin, a second pin, and a third pin. The third switch includes a fourth pin, a fifth pin, and a sixth pin. The first port of the first switch is electrically connected to the first resistor, and the second port of the first switch is electrically connected to the first pin of the second switch; The fourth pin of the third switch is electrically connected to the second resistor, and the fifth pin of the third switch is electrically connected to the ground terminal. The sixth pin of the third switch is electrically connected to the second pin of the second switch, so that the third switch and the second switch are connected in series; The third pin of the second switch is electrically connected to the second instruction processing unit (14) to output a signal to the second instruction processing unit (14).

5. The pump drive device according to claim 2, characterized in that, The second instruction processing unit (14) includes a signal receiving port, a fourth resistor, and a fifth resistor. The fourth resistor and the fifth resistor are electrically connected to the signal receiving port, and the fourth resistor and the fifth resistor are connected in parallel.

6. The pump drive device according to claim 5, characterized in that, The second instruction processing unit (14) further includes a fourth switch, which includes a third port and a fourth port. The fourth resistor is electrically connected to the first conductive structure (11); The third port of the fourth switch is electrically connected to the fifth resistor, and the fourth port of the fourth switch is electrically connected to the second conducting structure (12). The first conductive structure (11) and the second conductive structure (12) are connected in series and electrically. The power control board (2) supplies a preset power supply signal to the water pump (6) through the first conductive structure (11) and the second conductive structure (12).

7. The pump drive device according to claim 6, characterized in that, The first conducting structure (11) includes a sixth resistor and a fifth switch, and the second conducting structure includes a seventh resistor and a sixth switch. The sixth resistor and the fifth switch are connected in parallel, and the seventh resistor and the sixth switch are connected in parallel; The fifth switch and the sixth switch are connected in series and electrically, so that the first conducting structure (11) is connected in series with the second conducting structure (12).

8. The driving device for the water pump according to claim 1, characterized in that, The detection module (5) includes a detection signal receiving port, an eighth resistor, and a ninth resistor. The detection signal receiving port is electrically connected to the eighth resistor and the ninth resistor, respectively.

9. The pump drive device according to claim 8, characterized in that, The detection module (5) also includes a detection information output port. The detection information output port is electrically connected to the eighth resistor; The detection information output port is electrically connected to the instruction control unit (3), and the detection module (5) is electrically connected to the instruction control unit (3) through the detection information output port.

10. A steamer, characterized in that, The steamer includes a water pump drive device as described in any one of claims 1-9, an electronic control board (2), and a water pump (6). The drive device (1) is integrated on the electronic control board (2), and the drive device (1) is electrically connected to the water pump (6).

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