CN211836181U

CN211836181U - Electric floating plate

Info

Publication number: CN211836181U
Application number: CN202020133490.3U
Authority: CN
Inventors: 陶师正; 王刚建; 姚永豪; 唐彪; 万小康
Original assignee: Guangdong ePropulsion Technology Co Ltd
Current assignee: Guangdong ePropulsion Technology Co Ltd
Priority date: 2020-01-20
Filing date: 2020-01-20
Publication date: 2020-11-03
Anticipated expiration: 2030-01-20

Abstract

The embodiment of the utility model discloses electric floating plate, include: a plate body, wherein a sealing cavity is formed in the plate body; the water inlet detection circuit is arranged in the sealing cavity; and the electric control module is arranged in the sealing body in the sealing cavity, and the water inlet detection circuit is electrically connected with the electric control module. The embodiment of the utility model provides an electronic kickboard is through setting up electronic control module in dual waterproof construction to set up into water detection circuitry between first layer waterproof construction and second floor waterproof construction, in time detect the condition of intaking, can improve electronic kickboard's waterproof nature, repairability and security.

Description

Electric floating plate

Technical Field

The embodiment of the utility model provides a relate to waterproof technique, especially relate to an electronic kickboard.

Background

Along with the continuous development of the aquatic sports, some sports equipment replace traditional swimming kickboard gradually like electronic kickboard, through increasing battery and propeller for traditional swimming kickboard, make the kickboard have the power of advancing, be convenient for control and use, but electronic kickboard needs better waterproof nature in order to guarantee normal work simultaneously.

At present, the waterproof construction of current electronic kickboard can not accomplish effectively waterproof, when waterproof construction has the water droplet to soak, can't detect to have into water and in time take measures, can lead to the circuit device in the electronic kickboard because of the damage that the intaking led to the fact, and the waterproof nature and the repairability of electronic kickboard are relatively poor, have the potential safety hazard.

SUMMERY OF THE UTILITY MODEL

An embodiment of the utility model provides an electric floating plate to improve electric floating plate's waterproof nature, repairability and security.

In a first aspect, an embodiment of the present invention provides an electric floating plate, including:

a plate body, wherein a sealing cavity is formed in the plate body;

the water inlet detection circuit is arranged in the sealing cavity;

the electric control module is arranged in the sealing body in the sealing cavity, and the water inlet detection circuit is electrically connected with the electric control module; the water inlet detection circuit is used for outputting a water inlet signal to the electric control module when detecting water drops.

Optionally, the electric control module includes a motor driver, a controller and a battery, the motor driver is electrically connected with the controller, and the controller is electrically connected with the battery; the motor driver, the controller and the battery are respectively sealed by waterproof shells or glue filling.

Optionally, the water inlet detection circuit includes: a first electrode, a second electrode and a signal detection circuit;

the first electrode and the second electrode are respectively and electrically connected with a first input end and a second input end of the signal detection circuit, an output end of the signal detection circuit is electrically connected with the controller, and when the first electrode and the second electrode are in short circuit, the signal detection circuit outputs a water inlet signal to the controller.

Optionally, the circuit constituting the first electrode and the circuit constituting the second electrode are disposed on the circuit board at an interval.

Optionally, the first electrode and the second electrode are arranged in a spiral shape or a comb shape.

Optionally, the signal detection circuit includes a triode; the base electrode of the triode is electrically connected with the first end of the connecting interface, and the first pole of the triode is connected with a power supply;

the first end of the first resistor is connected with a power supply, and the second end of the first resistor is electrically connected with the second end of the connection interface;

the first end of the second resistor is electrically connected with the second pole of the triode, and the second end of the second resistor is electrically connected with the controller;

and the first end and the second end of the connecting interface are respectively electrically connected with the first electrode and the second electrode.

Optionally, a circuit board is disposed at least one of the recess and the corner in the sealing cavity.

Optionally, the controller is configured to control a power supply line between the battery and the electronic control module to be disconnected when receiving the water inlet signal.

Optionally, the electronic control module includes a first MOS transistor, a second MOS transistor, a first diode, a second diode, a third resistor, a fourth resistor, a fifth resistor, and a sixth resistor, a first electrode of the first MOS transistor is electrically connected to the output terminal of the battery, a second electrode of the first MOS transistor is electrically connected to the power input terminal of the electronic control module, a first electrode of the second MOS transistor is grounded, a positive end of the first diode and a first end of the third resistor are both electrically connected to a second electrode of the first MOS transistor, a negative end of the first diode is electrically connected to the first electrode of the first MOS transistor, a second end of the third resistor is electrically connected to the gate of the first MOS transistor, a first end of the fourth resistor is electrically connected to a second end of the third resistor, a second end of the fourth resistor is electrically connected to a negative end of the second diode, a negative end of the second diode is also electrically connected to the second electrode of the second MOS transistor, a positive end of the second diode is electrically connected to the first electrode of the second MOS transistor, the first end of the fifth resistor is electrically connected with the grid electrode of the second MOS tube, the second end of the fifth resistor is electrically connected with the control output end of the electronic control module, the first end of the sixth resistor is electrically connected with the first end of the fifth resistor, and the second end of the sixth resistor is electrically connected with the positive end of the second diode.

Optionally, the plate body includes a bearing portion, a sealing ring and an upper cover, the bearing portion and the upper cover are connected in a sealing manner to form a sealing cavity, a sealing groove is formed at a joint of the bearing portion and the upper cover, and the sealing ring is arranged in the sealing groove.

An embodiment of the utility model provides an electronic kickboard, including plate body, detection circuitry and the automatically controlled module of intaking, be formed with sealed chamber in the plate body, the detection circuitry that intakes sets up at sealed intracavity, and automatically controlled module sets up in the sealed body in sealed chamber, and detection circuitry and the automatically controlled module electricity of intaking are connected. The embodiment of the utility model provides an electronic kickboard, it is internal that electronic control module sets up the sealed body in sealed chamber, set up in the two-layer waterproof construction that first layer waterproof construction sealed chamber and second floor waterproof construction sealed body formed in being equivalent to, detection circuitry sets up in sealed intracavity, between first layer waterproof construction and second floor waterproof construction, after the sealed shell that forms sealed chamber became invalid like this, the detection circuitry that intakes that sets up in sealed intracavity is when detecting the water droplet, export signal of intaking to electronic control module, can remind relevant personnel in time to maintain or the drainage, can prevent further intake through the combination of detection circuitry that intakes and two-layer waterproof construction, thereby improve the waterproof nature of electronic kickboard, avoid electronic control module to intake and take place the potential safety hazard of short circuit at the during operation, the repairability and the security of electronic kickboard are improved.

Drawings

Fig. 1 is a block diagram of an electric floating plate according to an embodiment of the present invention;

fig. 2 is a schematic structural diagram of a part of components of an electric floating plate provided by an embodiment of the present invention;

fig. 3 is a block diagram of another electric floating plate according to an embodiment of the present invention;

fig. 4 is a block diagram of an electronic control module according to an embodiment of the present invention;

fig. 5 is a block diagram illustrating a connection structure between a signal detection circuit and a circuit board according to an embodiment of the present invention;

fig. 6 is a schematic structural diagram of a water inlet detection circuit according to an embodiment of the present invention;

fig. 7 is a schematic structural diagram of a first electrode and a second electrode according to an embodiment of the present invention;

fig. 8 is a schematic structural diagram of an electronic control module according to an embodiment of the present invention.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some of the structures related to the present invention are shown in the drawings, not all of the structures.

Fig. 1 is a block diagram of an embodiment of the present invention, and fig. 2 is a schematic structural diagram of a part of components of an electric floating plate, which is provided in the present invention, and with reference to fig. 1 and fig. 2, the electric floating plate includes: the water inlet detection device comprises a plate body 10, a water inlet detection circuit 20 and an electronic control module 30; wherein, a sealing cavity 40 is formed in the plate body 10; the water inlet detection circuit 20 is arranged in the sealed cavity 40; the electronic control module 30 is arranged in the sealing body 50 in the sealing cavity 40, and the water inlet detection circuit 20 is electrically connected with the electronic control module 30; the water inlet detection circuit 20 is used for outputting a water inlet signal to the electronic control module when a water drop is detected.

Specifically, the sealed cavity 40 can be used as a first waterproof layer of the electric floating plate, the sealed body 50 can be used as a second waterproof layer of the electric floating plate, that is, the electric control module 30 is arranged in the two waterproof layers, and the water inlet detection circuit 20 is arranged between the first waterproof layer and the second waterproof layer. If water enters the first waterproof structure, namely the sealed cavity 40, when the water inlet detection circuit 20 in the sealed cavity 40 detects water drops, a water inlet signal is output to the second waterproof structure, namely the electronic control module 30 in the sealed body 50, so that the electronic control module 30 controls the disconnection of circuits between the electronic control module 30 and other devices according to the water inlet signal, a motor electrically connected with the electronic control module 30 can be controlled to stop rotating, an alarm lamp electrically connected with the electronic control module 30 is started to play a warning role, for example, the disconnection of a battery connecting circuit of the electronic control module 30 is controlled, the power of the electronic control module is cut off, the motor stops supplying power, the electronic control module does not work, measures such as drainage and the like are taken, namely, the water can be prevented from further entering through the combination of the water inlet detection circuit and the two waterproof structures, and the damage caused by the water inlet of the devices in the sealed cavity, such as the battery, the repairability, the safety and the waterproofness of the electric floating plate are improved.

Referring to fig. 2, optionally, the plate body includes a bearing part 100, a sealing ring 200 and an upper cover 300, the bearing part 100 and the upper cover 300 are hermetically connected to form a sealing cavity, a sealing groove 400 is disposed at a joint of the bearing part 100 and the upper cover 300, and the sealing ring 200 is disposed in the sealing groove 400.

Wherein, the upper cover 300 is also provided with a bulkhead 301, the upper cover 300 is hermetically connected with the bearing part 100 through a fastening screw 302, the water inlet detection circuit 20 is arranged in the sealing cavity, the circuit board 24, namely a water inlet detection board, is also arranged in the sealing cavity, and the electric control module is arranged in the sealing body 101.

The embodiment of the utility model provides an electronic kickboard, it is internal that electronic control module sets up the sealed body in sealed chamber, set up in the two-layer waterproof construction that first layer waterproof construction sealed chamber and second floor waterproof construction sealed body formed in being equivalent to, detection circuitry sets up in sealed intracavity, between first layer waterproof construction and second floor waterproof construction, after the sealed shell that forms sealed chamber became invalid like this, the detection circuitry that intakes that sets up in sealed intracavity is when detecting the water droplet, export signal of intaking to electronic control module, can remind relevant personnel in time to maintain or the drainage, can prevent further intake through the combination of detection circuitry that intakes and two-layer waterproof construction, thereby improve the waterproof nature of electronic kickboard, avoid electronic control module to intake and take place the potential safety hazard of short circuit at the during operation, the repairability and the security of electronic kickboard are improved.

Fig. 3 is a block diagram of another electric floating plate according to an embodiment of the present invention, and referring to fig. 3, optionally, on the basis of the above technical solution, the electric control module 30 includes a motor driver 31, a controller 32, and a battery 33, the motor driver 31 is electrically connected to the controller 32, and the controller 32 is electrically connected to the battery 33; the motor driver 31, the controller 32 and the battery 33 are sealed by waterproof cases or potting adhesives respectively.

Wherein, the water inlet detection circuit is electrically connected with the controller 32, the controller 32 can receive a water inlet signal, the controller 32 controls the working state of the motor on the electric floating plate through the motor driver 31, the battery 33 supplies power for other modules and circuits in the electric control module 30, and comprises the controller 32, the motor driver 31, the motor and the motor, and the like, the motor driver 31, the controller 32 and the battery 33 in the electric control module 30 are respectively arranged in the second layer waterproof structure by adopting a waterproof shell or glue filling sealing, compared with the single-layer waterproof structure, when the water inlet detection circuit detects water drops, the water inlet signal is output to the electric control module 30, so that the electric control module 30 controls the disconnection of the circuit between the electric control module 30 and the battery 33 according to the water inlet signal, and measures such as drainage are adopted, namely, the water inlet can be prevented from further entering through the combination of the water inlet detection circuit and the two layers of waterproof structures, and the possibility of water inlet, the damage of devices in the sealed cavity, such as the battery 33, the electronic control module 30 and the like, caused by water inflow is reduced, the electronic control module 30 can be better protected from being damaged, and the waterproofness of the electric floating plate can be further improved.

Fig. 4 is a structural block diagram of an electronic control module provided in the embodiment of the present invention, optionally, refer to fig. 4, the electronic control module includes a controller 32, a switch button 34 electrically connected to the controller 32, a charging control circuit 35, an electrifying control circuit 36, a motor driving device 31, and a battery 33, the battery 33 is electrically connected to the controller 32 through the electrifying control circuit 36, the motor 60 is electrically connected to the controller 32 through the motor driving device 31, the battery 33 supplies power to the motor 60 through the controller 32, and the water inlet detection module 70 includes a water inlet detection circuit.

Fig. 5 is a block diagram of a signal detection circuit connected to a circuit board according to an embodiment of the present invention, and fig. 6 is a schematic structural diagram of a water inflow detection circuit according to an embodiment of the present invention, and optionally, referring to fig. 5 and fig. 6, the water inflow detection circuit 20 includes a first electrode 21, a second electrode 22, and a signal detection circuit 23; the first electrode 21 and the second electrode 22 are electrically connected to the first input terminal a1 and the second input terminal a2 of the signal detection circuit 23, respectively, the output terminal E1 of the signal detection circuit 23 is electrically connected to the controller 32, and when the first electrode 21 and the second electrode 22 are short-circuited, the signal detection circuit 23 outputs a water inlet signal to the controller 32.

Specifically, the distance between the first electrode 21 and the second electrode 22 can be as small as possible under the condition that the first electrode 21 and the second electrode 22 are not short-circuited, so when water drops exist between the first electrode 21 and the second electrode 22, the first electrode 21 and the second electrode 22 are short-circuited, when the first electrode 21 and the second electrode 22 are short-circuited, the signal detection circuit 23 is conducted with a path of the power supply VCC, the signal detection circuit 23 can output a high-level water inlet signal to the controller 32, the controller 32 controls the electronic control module 30 to be disconnected from the battery according to the high-level water inlet signal, the system is powered off, and the safety and the waterproofness of the electric floating plate are improved.

Alternatively, the wiring constituting the first electrode 21 and the wiring constituting the second electrode 22 are provided on the wiring board 24 at an interval.

The circuit forming the first electrode 21 and the circuit forming the second electrode 22 on the circuit board 24 are arranged at intervals, and when water drops condense on the surface of the circuit board 24 or water drops fall on the circuit board 24, the first electrode 21 and the second electrode 22 are conducted, and the water inlet detection circuit 20 is triggered to output a water inlet signal to the controller 32, so that the controller 32 controls the battery to stop supplying power.

Fig. 7 is a schematic structural diagram of a first electrode and a second electrode according to an embodiment of the present invention, and optionally, referring to fig. 7, the first electrode 21 and the second electrode 22 are both spiral or both comb-shaped.

The first electrode 21 and the second electrode 22 may be spiral, as shown in a in fig. 7, the spiral shape may save the occupied space of the circuit constituting the first electrode 21 and the circuit constituting the second electrode 22 on the circuit board 24, and may not affect the length of the circuit constituting the first electrode 21 and the circuit constituting the second electrode 22, and the spiral circuit of the first electrode 21 and the spiral circuit of the second electrode 22 may cover substantially the entire circuit board 24, so as to ensure that the circuit of the first electrode 21 and the circuit of the second electrode 22 may be short-circuited when water drops fall on any position of the circuit board 24.

Alternatively, the first electrode 21 and the second electrode 22 may be comb-shaped, as shown in fig. 7 b, the line of the first electrode 21 and the line of the second electrode 22 arranged in a comb shape have multiple branches, one branch line fails and does not affect other branches, and when water drops fall between the normal branches of the two lines, the line of the first electrode 21 and the line of the second electrode 22 are short-circuited, thereby improving the effectiveness of the water inlet detection.

It should be noted that the first electrode 21 and the second electrode 22 may be designed in any shape, such as a square shape or a circular shape, and this embodiment is only an illustrative illustration of the shape of the first electrode 21 and the shape of the second electrode 22, and is not limited in particular.

Referring to fig. 5 and 6, optionally, the signal detection circuit 23 includes a transistor Q, a first resistor R1, a second resistor R2, and a filter capacitor C1; the base electrode of the triode Q is electrically connected with the first end B1 of the connecting interface 25, and the first pole of the triode Q is connected with a power supply VCC; a first end of the first resistor R1 is connected to the power supply VCC, and a second end of the first resistor R1 is electrically connected to a second end B2 of the connection interface 25; a first end of the second resistor R2 is electrically connected to the second pole of the transistor Q, and a second end of the second resistor R2 is electrically connected to the controller 32; the first end of the filter capacitor C1 is electrically connected to the second end of the second resistor R2, the second end of the filter capacitor C1 is grounded, the connection interface 25 is electrically connected to the circuit board 24, and the first end B1 and the second end B2 of the connection interface 25 are electrically connected to the first electrode 21 and the second electrode 22, respectively.

The second end of the second resistor R2 in the signal detection circuit 23 outputs the water inlet signal to the controller 32, the first pole and the second pole of the transistor Q can be a collector and an emitter respectively, the signal detection circuit 23 further includes a seventh resistor R7, the first end of the seventh resistor R7 is electrically connected to the first end of the second resistor R2, and the second end of the seventh resistor R7 is grounded.

Specifically, when a water droplet is dropped on the circuit board 24 to cause a short circuit between the circuit forming the first electrode 21 and the circuit forming the second electrode 22, a weak current flows through the first electrode 21 and the second electrode 22, a path between the transistor Q and the power source VCC is conducted, the current is amplified by the transistor Q, and a high-level water inlet signal can be output to the controller 32 from the second end of the second resistor R2, so that the controller 32 controls the disconnection of the circuit between the electronic control module 30 and other devices according to the received water inlet signal, the damage of the devices on the electric floating plate is reduced, and the repairability, the safety and the waterproofness of the electric floating plate are improved.

Optionally, at least one of the recess and the corner in the sealed cavity 40 is provided with a circuit board 24.

It is specific, sunken department and edge in the seal chamber 40 are the place of easy ponding, with circuit board 24 sets up sunken department and edge in the seal chamber 40, when taking place into water in the seal chamber 40, the water droplet is changeed and is fallen on the circuit board 24 of sunken department and edge that sets up in the seal chamber 40, thereby whether it intakes to change to detect the seal chamber 40 through circuit board 24 and intake detection circuitry 20, reduce the degree of difficulty that detects, and when the seal chamber 40 begins to intake, the edge of seal chamber 40 is the position that the water droplet enters first usually, whether the accessible sets up in time to detect the seal chamber 40 at the circuit board 24 of edge has intake, improve the timeliness that the detection of intaking.

Optionally, the controller 32 is configured to control the power supply line between the battery 33 and the electronic control module 30 to be disconnected when receiving the water inlet signal.

Specifically, if the controller 32 receives the water inlet signal and indicates that water enters the sealed cavity 40, the controller controls the power supply circuit between the battery 33 and the electronic control module 30 to be disconnected, so that the battery 33 is disconnected into a power supply loop of the motor on the electric floating plate through the electronic control module 30, the motor stops rotating the electric floating plate and does not work, the damage degree of devices such as the battery can be reduced, and the repairability, the safety and the waterproofness of the electric floating plate are improved.

Fig. 8 is a schematic structural diagram of an electronic control module according to an embodiment of the present invention, and optionally, referring to fig. 8, the electronic control module 30 includes a first MOS transistor Q1, a second MOS transistor Q2, a first diode, a second diode, a third resistor R3, a fourth resistor R4, a fifth resistor R5 and a sixth resistor R6, a first electrode of the first MOS transistor Q1 is electrically connected to the output terminal BAT of the battery, a second electrode of the first MOS transistor Q1 is electrically connected to the power input terminal POW of the electronic control module, a first electrode of the second MOS transistor Q2 is grounded, a positive end of the first diode and a first end of the third resistor R3 are both electrically connected to a second electrode of the first MOS transistor Q1, a negative end of the first diode is electrically connected to a first electrode of the first MOS transistor Q1, a second end of the third resistor R3 is electrically connected to a gate of the first MOS transistor Q1, a first end of the fourth resistor R4 is electrically connected to a first end of the third resistor R3, and a negative end of the fourth resistor R4 is electrically connected to the second diode 4, the negative end of the second diode is further electrically connected with the second pole of the second MOS transistor Q2, the positive end of the second diode is electrically connected with the first pole of the second MOS transistor Q2, the first end of the fifth resistor R5 is electrically connected with the gate of the second MOS transistor Q2, the second end of the fifth resistor R5 is electrically connected with the control output end POWC of the electronic control module, the first end of the sixth resistor R6 is electrically connected with the first end of the fifth resistor R5, and the second end of the sixth resistor R6 is electrically connected with the positive end of the second diode.

The first MOS transistor Q1 and the second MOS transistor Q2 may be a PMOS transistor and an NMOS transistor, respectively, the first pole and the second pole of the first MOS transistor Q1 may be a source electrode and a drain electrode, respectively, and the first pole and the second pole of the second MOS transistor Q2 may be a source electrode and a drain electrode, respectively.

Specifically, when the electronic control module does not have a water inlet signal in normal operation, the level of the control output end POWC of the electronic control module is high level, the second MOS transistor Q2 and the second diode are conducted, and the third resistor R3 and the fourth resistor R4 have a conduction loop, so that the gate of the first MOS transistor Q1 is low level, the first MOS transistor Q1 is conducted, and the output BAT of the battery is conducted with the power input end POW of the electronic control module through the first MOS transistor Q1, so that the battery can supply power to the motor through the electronic control module, and the electric floating plate works normally; when the electric control module receives a water inlet signal, the level of a control output end POWC of the electric control module is controlled to be low, the second MOS tube Q2 and the second diode are not conducted, and a third resistor R3 and a fourth resistor R4 do not work in a non-conduction loop, so that the first voltage of the first MOS tube Q1 is the same as the grid voltage, the first MOS tube Q1 is not conducted, the output end BAT of the battery is disconnected with a power input end POW of the electric control module through the first MOS tube Q1, the damage degree of devices such as the battery is reduced, and the repairability, the safety and the waterproofness of the electric floating plate are improved.

It should be noted that the first MOS transistor Q1 and the second MOS transistor Q2 may also be an NMOS transistor and a PMOS transistor, respectively, the first pole and the second pole of the first MOS transistor Q1 may be a drain and a source, respectively, the first pole and the second pole of the second MOS transistor Q2 may be a drain and a source, respectively, and the first MOS transistor Q1 and the second MOS transistor Q2 may also be other types of transistors, which is not limited herein.

The electronic kickboard that this embodiment provided, detection circuitry intakes when detecting that the seal chamber intakes, output signal to the controller of intaking, the supply line disconnection between the steerable battery of controller and the electrical control module reduces the damage degree of devices such as battery, avoids electrical control module to intake and takes place the potential safety hazard of short circuit at the during operation, improves electronic kickboard's repairability and security.

It should be noted that the foregoing is only a preferred embodiment of the present invention and the technical principles applied. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, although the present invention has been described in greater detail with reference to the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the scope of the present invention.

Claims

1. An electrically-powered flotation plate, comprising:

the plate comprises a plate body, wherein a sealing cavity is formed in the plate body;

the water inlet detection circuit is arranged in the sealing cavity;

the electric control module is arranged in the sealing body in the sealing cavity, and the water inlet detection circuit is electrically connected with the electric control module; the water inlet detection circuit is used for outputting a water inlet signal to the electronic control module when water drops are detected.

2. The electrically floating plate according to claim 1, wherein the electric control module comprises a motor driver, a controller and a battery, the motor driver being electrically connected with the controller, the controller being electrically connected with the battery; the motor driver, the controller and the battery are sealed by waterproof cases or glue filling respectively.

3. The electrically driven float plate of claim 2 wherein said water ingress detection circuit comprises: a first electrode, a second electrode and a signal detection circuit;

the first electrode and the second electrode are respectively electrically connected with a first input end and a second input end of the signal detection circuit, an output end of the signal detection circuit is electrically connected with the controller, and when the first electrode and the second electrode are in short circuit, the signal detection circuit outputs a water inlet signal to the controller.

4. The motorized slider plate of claim 3, wherein the traces forming said first electrode and the traces forming said second electrode are spaced apart on a circuit board.

5. The electrically floating plate according to claim 4, wherein said first electrode and said second electrode are disposed in a spiral shape or a comb shape.

6. The motorized slider plate of claim 4, wherein the signal detection circuit comprises a transistor; the base electrode of the triode is electrically connected with the first end of the connecting interface, and the first pole of the triode is connected with a power supply;

the first end of the first resistor is connected to the power supply, and the second end of the first resistor is electrically connected with the second end of the connection interface;

a first end of the second resistor is electrically connected with a second pole of the triode, and a second end of the second resistor is electrically connected with the controller;

and the first end of the filter capacitor is electrically connected with the second end of the second resistor, the second end of the filter capacitor is grounded, the connection interface is electrically connected with the circuit board, and the first end and the second end of the connection interface are respectively electrically connected with the first electrode and the second electrode.

7. The electrically driven floating plate according to claim 4, wherein the circuit board is provided in at least one of a recess and a corner in the sealed cavity.

8. The electric floating plate according to claim 2, wherein the controller is configured to control a power supply line between the battery and the electric control module to be disconnected when the water inlet signal is received.

9. The floating plate of claim 8, wherein the electric control module comprises a first MOS transistor, a second MOS transistor, a first diode, a second diode, a third resistor, a fourth resistor, a fifth resistor and a sixth resistor, a first pole of the first MOS transistor is electrically connected to the output terminal of the battery, a second pole of the first MOS transistor is electrically connected to the power input terminal of the electric control module, a first pole of the second MOS transistor is grounded, a positive end of the first diode and a first end of the third resistor are both electrically connected to a second pole of the first MOS transistor, a negative end of the first diode is electrically connected to the first pole of the first MOS transistor, a second end of the third resistor is electrically connected to the gate of the first MOS transistor, a first end of the fourth resistor is electrically connected to a second end of the third resistor, and a second end of the fourth resistor is electrically connected to the negative end of the second diode, the negative end of the second diode is electrically connected with the second pole of the second MOS tube, the positive end of the second diode is electrically connected with the first pole of the second MOS tube, the first end of the fifth resistor is electrically connected with the grid electrode of the second MOS tube, the second end of the fifth resistor is electrically connected with the control output end of the electronic control module, the first end of the sixth resistor is electrically connected with the first end of the fifth resistor, and the second end of the sixth resistor is electrically connected with the positive end of the second diode.

10. The electric floating plate according to claim 1, wherein the plate body comprises a bearing portion, a sealing ring and an upper cover, the bearing portion and the upper cover are connected in a sealing manner to form the sealing cavity, a sealing groove is formed at a joint of the bearing portion and the upper cover, and the sealing ring is disposed in the sealing groove.