WO2021110140A1 - 清洗机 - Google Patents

清洗机 Download PDF

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Publication number
WO2021110140A1
WO2021110140A1 PCT/CN2020/133908 CN2020133908W WO2021110140A1 WO 2021110140 A1 WO2021110140 A1 WO 2021110140A1 CN 2020133908 W CN2020133908 W CN 2020133908W WO 2021110140 A1 WO2021110140 A1 WO 2021110140A1
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WO
WIPO (PCT)
Prior art keywords
motor
circuit board
control circuit
transmission line
battery pack
Prior art date
Application number
PCT/CN2020/133908
Other languages
English (en)
French (fr)
Inventor
乔勇
王其彬
段风伟
朱考
Original Assignee
苏州宝时得电动工具有限公司
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Filing date
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Application filed by 苏州宝时得电动工具有限公司 filed Critical 苏州宝时得电动工具有限公司
Publication of WO2021110140A1 publication Critical patent/WO2021110140A1/zh

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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B08CLEANING
    • B08BCLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B3/00Cleaning by methods involving the use or presence of liquid or steam
    • B08B3/02Cleaning by the force of jets or sprays
    • B08B3/026Cleaning by making use of hand-held spray guns; Fluid preparations therefor
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B08CLEANING
    • B08BCLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B13/00Accessories or details of general applicability for machines or apparatus for cleaning
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B08CLEANING
    • B08BCLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B3/00Cleaning by methods involving the use or presence of liquid or steam
    • B08B3/02Cleaning by the force of jets or sprays

Definitions

  • the invention relates to a pressure cleaning device, in particular to a cleaning machine.
  • the washing machine As a kind of cleaning equipment that can generate high-pressure water flow to wash the surface of objects, the washing machine is widely used in various fields of work and life. Especially in outdoor courtyards, motor vehicle lanes and sidewalks with concrete structure surfaces and in the cleaning process with hard surfaces such as rails, fences, cars, etc., it has a good effect.
  • the washing machine may be a seat type, and the seat type washing machine is usually wrapped with a hose.
  • the hose needs to be connected to a tap or one end of the hose needs to be inserted into a water source.
  • the hose to be wound on the washing machine is relatively long, which causes the washing machine to be larger in size and inconvenient to move, so that the washing range is limited and the portability is poor.
  • the cleaning machine in order to improve the discharge speed of the cleaning liquid and to adjust the discharge speed of the cleaning liquid, the cleaning machine is usually equipped with a pump body for pressurizing the cleaning liquid, a motor that drives the pump body, and the speed control of the motor.
  • a control circuit board PCB board
  • the switch for controlling the start and stop of the motor, and so on.
  • the embodiment of the present invention provides a washing machine, which makes the circuit connection simpler and the circuit layout more reasonable on the premise of achieving a smaller size and better portability of the whole machine.
  • the present invention provides the following technical solutions.
  • a washing machine including:
  • the host includes a motor and a pump body that is rotationally driven by the motor;
  • the spray gun including the first flow channel for the circulation of the cleaning liquid
  • a connecting piece connecting the host and the spray gun, the connecting piece is provided with a second flow passage; the outlet end of the pump body communicates with the first flow passage through the second flow passage;
  • the spray gun is provided with a micro switch that is electrically connected to the motor and controls the opening and closing of the motor, a battery pack coupling part for installing a battery pack, and a control circuit board electrically connected to the battery pack coupling part;
  • the connecting member further includes a transmission line, and the control circuit board is electrically connected to the motor through the transmission line to control the motor; the number of the transmission line does not exceed 6 at most.
  • the opening and closing signal is generated when the micro switch is triggered; the transmission line is at least used to transmit the opening and closing signal to control the start and stop of the motor.
  • the cleaning machine further includes a speed control element arranged on the spray gun and electrically connected to the control circuit board; the control circuit board generates and sends out a speed control signal when the speed control element is triggered;
  • the transmission line is also used to transmit the speed regulation signal to control the speed regulation of the motor.
  • the micro switch is electrically connected to the control circuit board, and the open/close signal is generated and issued by the control circuit board when the micro switch is triggered.
  • the micro switch is arranged on the transmission line, and the opening and closing signal is generated and sent out when the micro switch is triggered.
  • the motor is a three-phase brushless DC motor, and there are three transmission lines, which are respectively connected to the three phases of the three-phase brushless DC motor; or,
  • the motor is a two-phase brushless DC motor, and there are two transmission lines, which are respectively connected to the two phases of the two-phase brushless DC motor; or,
  • the motor is a unidirectional DC brushed motor, and the transmission lines are two, which are respectively connected to the positive and negative poles of the unidirectional DC brushed motor.
  • the transmission line includes a first transmission line and a second transmission line, the first transmission line is used to transmit the speed control signal; the micro switch is arranged on the second transmission line, and the opening and closing signal is controlled by the The micro switch is generated and sent out when it is triggered, and the second transmission line is used to transmit the opening and closing signal.
  • the motor is a three-phase brushless DC motor
  • the first transmission line and the second transmission line are both three
  • the three first transmission lines are respectively connected to the three phases of the three-phase brushless DC motor
  • the three second transmission lines are also respectively connected to the three phases of the three-phase brushless DC motor; or,
  • the motor is a two-phase brushless DC motor, the first transmission line and the second transmission line are both two, and the two first transmission lines are respectively connected to the two phases of the two-phase DC brushless motor, and the two are connected to the two phases of the two-phase brushless DC motor.
  • the second transmission lines are also respectively connected to the two phases of the two-phase brushless DC motor; or,
  • the motor is a one-way DC brushed motor
  • the first transmission line has two
  • the second transmission line is one or two
  • the two first transmission lines are respectively connected to the one-way DC brushed motor
  • the positive and negative poles of the one or two second transmission lines are connected to the positive pole and/or the negative pole of the unidirectional DC brush motor.
  • the speed control element is electrically connected to the control circuit board through at least three lines, and the at least three lines include a positive power line, a negative power line and a speed control signal line.
  • the speed control element is provided with a speed control display component, and the speed control display component is electrically connected to the control circuit board through a fourth line.
  • the spray gun is further provided with a power display element for indicating the remaining power of the battery pack, and the power display element is electrically connected to the control circuit board through at least 3 wires, and the at least 3 wires include 1 One positive power cord, one negative power cord, and one power signal line.
  • the battery pack coupling part is configured to install a single battery pack
  • the battery pack coupling part is electrically connected to the control circuit board through three lines, and the three lines include one positive power supply. Wire, 1 negative power wire and 1 temperature signal wire.
  • the battery pack coupling portion when configured to install a dual battery pack, the battery pack coupling portion is electrically connected to the control circuit board through 5 wires, and the 5 wires include 1 positive power wire , 1 negative power cord, 1 intermediate phase wire and 2 temperature signal wires.
  • the spray gun includes a spray gun housing in which the first flow channel is received, and the spray gun housing includes a horizontal housing, a handle housing located at the rear end of the horizontal housing and extending downward, and A transitional case connected to the horizontal case and extending downward, the transitional case is located in front of the handle case;
  • the first flow channel has at least a liquid inlet, the liquid inlet is located in the handle housing, and the battery pack coupling part is provided on the transition housing.
  • the first flow channel includes a horizontal section located in the horizontal casing and an inclined section connected to the horizontal section and located in the handle casing; the end of the inclined section facing away from the horizontal section The opening forms the liquid inlet, and the end opening of the horizontal section away from the inclined section forms a liquid outlet.
  • control circuit board is arranged in the horizontal casing and close to the battery pack coupling part; the micro switch is arranged in the horizontal casing and close to the control circuit board.
  • control circuit board is located on one side of the horizontal section, the control circuit board is provided with electronic components, and the electronic components include at least a plurality of MOS tubes, and a plurality of the MOS tubes are provided in the The control circuit board faces the surface of the horizontal section, and a plurality of the MOS transistors are arranged along the length direction of the horizontal section.
  • the horizontal section includes a cooling section, a part of the side wall of the cooling section is a straight wall, the control circuit board is arranged on the straight wall, and the control circuit board is arranged between the straight wall and the control circuit board.
  • control circuit board is arranged in a sub-packing box, the cooling section is connected to the sub-packing box, and the sub-packing box is fixed in the horizontal casing; the sub-packing box includes The straight wall of the cooling section is connected to a bottom wall, the straight wall partially overlaps the bottom wall, and the control circuit board is fixed on the bottom wall.
  • the dispensing box further includes a protrusion formed on the edge of the bottom wall, and the protrusion and the bottom wall define a receiving groove for receiving the control circuit board therein.
  • a washing machine including:
  • the host includes a motor and a pump body that is rotationally driven by the motor;
  • the spray gun including the first flow channel for the circulation of the cleaning liquid
  • a connecting piece connecting the host and the spray gun, the connecting piece is provided with a second flow passage; the outlet end of the pump body communicates with the first flow passage through the second flow passage;
  • the spray gun is provided with a micro switch electrically connected to the motor and controlling the start and stop of the motor, a battery pack coupling part for installing a battery pack, and a control circuit board electrically connected to the battery pack coupling part.
  • the wiring between the electronic components provided on the spray gun and the control circuit board can be shortened.
  • the longer connection line, the transmission line only exists in the connection piece that connects the host and the spray gun.
  • the control circuit board By arranging the control circuit board on the spray gun, compared with the prior art in which the control circuit board is arranged on the host, the number of transmission lines connecting the motor and the control circuit board can be greatly reduced. As a result, the circuit structure is simplified, and the wiring becomes more reasonable.
  • the overall volume of the cleaning machine is small and the use is more convenient.
  • the operator only needs to hold the spray gun to perform the cleaning operation, and the host can be placed or submerged in the water source, or towed to walk, the portability is better, and the cleaning range is greatly expanded.
  • Figure 1 is a schematic diagram of the overall structure of a cleaning machine according to an embodiment of the present invention.
  • Fig. 2 is a partial enlarged schematic view of the spray gun included in the cleaning machine shown in Fig. 1;
  • Fig. 3 is a circuit module topology diagram of the washing machine shown in Fig. 1 or Fig. 2;
  • Figure 4 is a cross-sectional view of the A1-A1 section in Figure 1;
  • Figure 5 is a cross-sectional view of the A9-A9 section in Figure 1;
  • Figure 6 is a layout diagram of electronic components on the control circuit board
  • Figure 7 is another layout diagram of electronic components on the control circuit board.
  • the direction of the washing machine according to the embodiment of the present invention that points to or faces the working surface is defined as “front” under normal use, and the opposite, the direction that points or faces the holding user is defined as “ Rear”. More specifically, the rightward direction shown in FIGS. 1 and 2 is defined as “front”, and the leftward direction shown in FIGS. 1 and 2 is defined as “rear”.
  • the cleaning machine of the embodiment of the present invention mainly includes two parts, namely the host 1 and the spray gun 2. The two are connected through the connecting piece 3.
  • the host 1 may include a host housing 101, a motor 102 and a pump body 103 provided in the host housing 101, and the pump body 103 is rotationally driven by the motor 102.
  • the motor 102 and the pump body 103 can be arranged up and down in the host casing 101, with the motor 102 on the bottom and the pump body 103 on the top.
  • a deceleration mechanism 104 (for example, a planetary gear train) may be provided between the motor 102 and the pump body 103.
  • the outlet end of the pump body 103 can be detachably connected to the connecting piece 3 by plugging.
  • the pump body 103 may be a plunger pump.
  • the side wall of the main body casing 101 may be provided with a water inlet 105 communicating with the inlet end of the pump body 103.
  • the water inlet 105 is formed at the lower end of the main body casing 101, and the lower end of the main body casing 101 is connected in a detachable manner.
  • the spray gun 2 may include a spray gun shell, which may be assembled by a Haval structure, including a horizontal casing 201 arranged substantially horizontally, and a handle located at the rear end of the horizontal casing 201 and extending downward and arranged at a certain angle with the horizontal casing 201
  • the casing 202 is connected to the horizontal casing 201 and extends downward to the transition casing 203.
  • the extension direction of the transition housing 203 is substantially the same as the extension direction of the handle housing 202, and the transition housing 203 is located in front of the handle housing 202, that is, the transition housing 203 is isolated from the handle housing 202.
  • the lower end of the transition case 203 can be connected to the handle case 202 through the bridge portion 207, so as to improve the strength of the transition case 203.
  • the bridge portion 207 has a hollow structure to facilitate the passage and storage of the transmission line 702 mentioned later.
  • the spray gun 2 may further include a first flow channel for the circulation of the cleaning liquid, which is housed in the spray gun housing and is defined by a hollow tube body.
  • the trend of the first flow path is to extend from the bottom of the handle housing 202 obliquely upward, and to extend from the rear end of the horizontal housing 201 to the front end at the junction of the handle housing 202 and the horizontal housing 201. Therefore, the first flow channel can be designed in sections, including an inclined section 204 located in the handle housing 202 and a horizontal section 205 located in the horizontal housing 201.
  • the upper end of the inclined section 204 is provided with a horizontal elbow 2041 facing the horizontal section 205, and the horizontal section 205 and the horizontal elbow 2041 are detachably connected by plugging.
  • the rear end of the horizontal section 205 is provided with an inclined elbow facing the inclined section 204, and the inclined section 204 and the inclined elbow are connected by plug connection. In this way, the segmented detachable connection of the first flow channel is realized.
  • the first flow channel has a liquid inlet 204a and a liquid outlet 205a.
  • the end (lower end) of the inclined section 204 away from the horizontal section 205 forms the liquid inlet 204a
  • the horizontal section 205 is away from the end (front end) of the inclined section.
  • a liquid outlet 205a is formed.
  • the liquid inlet 204a and the liquid outlet 205a are respectively located in the handle housing and the horizontal housing.
  • the front end of the spray gun 2 can be provided with a gun barrel 4 communicating with the liquid outlet 205a of the first flow channel, and the end of the gun barrel 4 can be provided with a spray head assembly 5 for adjusting the amount of liquid.
  • the motor 102 drives the pump body 103 to operate, sucks liquid from the water inlet 105 and pressurizes it.
  • the pressurized cleaning liquid enters the first flow path through the connector 3, and is finally ejected at a high speed through the gun barrel 4 and the nozzle assembly 5. Cleaning the surface of objects.
  • the connecting member 3 has flexibility or deformability, and a second flow passage 302 may be provided therein to connect the outlet end of the pump body 103 with the first flow passage.
  • the second flow channel 302 can be detachably connected with the inlet end of the pump body 103 and the liquid inlet 204a of the first flow channel by plugging.
  • the spray gun 2 can be provided with a micro switch 8 that is electrically connected to the motor 102 and controls the opening and closing of the motor 102, a battery pack coupling part 15 for installing the battery pack 6, and a battery pack coupling part 15 Electrically connected control circuit board 7.
  • the connector 3 may further include a transmission line 702, and the control circuit board 7 may be electrically connected to the motor 102 through the transmission line 702 to control the operation of the motor 102.
  • the battery pack coupling portion 15 is for detachable connection of the battery pack 6, and the installed battery pack 6 is used to supply power to the motor 102.
  • the number of battery pack coupling parts 15 is the same as the number of battery packs 6 and is configured to be able to connect or disconnect the battery pack 6 by sliding, snapping, buckling, or the like. As shown in FIG. 3, the battery pack coupling portion 15 can be electrically connected to the control circuit board 7 through a line 601.
  • the number of lines 601 can be adaptively changed according to the number of battery packs 6 that can be installed in the battery pack coupling portion 15. Specifically, if the battery pack coupling portion 15 is configured to only be able to install a single battery pack, that is, when the battery pack 6 is a single pack, the number of lines 601 can be three, which are one positive power cord and one negative power supply. Wire and 1 temperature signal wire. If the battery pack coupling part 15 is configured to be able to install a double battery pack, that is, when the battery pack 6 is a double pack, there can be 5 lines 601, which are 1 positive power line, 1 negative power line, and 1 intermediate power line. Phase line and 2 temperature signal lines.
  • the positive power line and the negative power line are used for power supply
  • the temperature signal line is used to upload the temperature data of the battery pack 6 to the control circuit board 7, so as to control the power off when the temperature of the battery pack 6 reaches a predetermined value to prevent the battery pack 6 The temperature is too high.
  • the battery pack coupling portion 15 may be provided in the transitional casing 203.
  • the internal space of the spray gun housing can be fully utilized to make room for the setting of the control circuit board 7 and the micro switch 8.
  • the battery pack coupling portion 15 is provided in the transition case 203, so that the battery pack 6 can be kept away from the liquid inlet 204a and the liquid outlet 205a of the first flow channel, so as to avoid the connection between the liquid inlet 204a and the liquid outlet 205a and the second flow channel.
  • the channel 302 or the barrel 4 is not tightly sealed and liquid leakage occurs, which in turn causes the battery pack 6 to be humidified by the leaked liquid and cause problems such as a short circuit.
  • an on-off signal can be generated, and the transmission line 702 connecting the control circuit board 7 and the motor 102 is used to transmit the on-off signal at least to control the start and stop of the motor 102. Further, the transmission line 702 can also transmit electrical signals for driving the motor 102 to operate.
  • the connecting member 3 includes the transmission line 702. Specifically, the transmission line 702 is arranged in the second flow channel 302 of the connecting member 3, or the transmission line 702 is arranged in the side wall of the connecting member 3, or the transmission line 702 is arranged outside the connecting member 3.
  • the connecting piece 3 is arranged separately.
  • the transmission line 702 may include a core and an insulating layer wrapped around the core to avoid leakage accidents.
  • the connecting piece 3 is made of insulating material, and the connecting piece 3 can insulate and prevent leakage of the transmission line 702.
  • the connecting piece 3 in this embodiment can specifically If it is a water and electricity integrated pipe, the connecting piece 3 can realize the electrical connection between the motor 102 and the control circuit board 7 while being plugged into the first flow channel to realize the water connection.
  • the opening and closing signal can be directly generated and sent out by the micro switch 8, or can be generated and sent out by the control circuit board 7 based on the triggering of the micro switch 8.
  • the micro switch 8 in the embodiment where the micro switch 8 is directly generated and sent out, the micro switch 8 can be arranged on the transmission line 702 connecting the motor 102 and the control circuit board 7, and the micro switch 8 is triggered to close or open , The electrical connection between the control circuit board 7 and the motor 102 can be directly turned on or off.
  • the number of micro switches 8 can be changed according to the type of the motor 102.
  • the motor 102 may be a three-phase DC brushless motor, a two-phase DC brushless motor, or a unidirectional DC brushless motor.
  • the three-phase DC brushless motor or the two-phase DC brushless motor can operate when at least part of the phases are turned on, and it stops operating when the three-phase or two-phase power is lost. For example, if all three phases of UVW of a three-phase brushless DC motor are turned on, or any one or two of the three phases of UVW loses power, the three-phase brushless DC motor can run.
  • the unidirectional DC brushed motor runs when the positive and negative poles are both on, and stops when one or two poles are disconnected.
  • the motor 102 is a three-phase brushless DC motor or a two-phase brushless DC motor
  • the number of micro switches 8 is no less than the number of transmission lines 702, and each transmission line 702 is provided with at least one micro switch 8 respectively. In this way, all the micro switches 8 are triggered to be turned off, and the conduction relationship between the control circuit board and all phases of the three-phase brushless DC motor or the two-phase brushless DC motor is cut off, and the motor 102 is controlled to stop.
  • all the micro switches 8 are triggered to be closed, or some of the micro switches 8 are triggered to be opened while leaving at least one of the micro switches 8 in the closed state, so as to realize the control on the motor 102 to be turned on.
  • the motor 102 When the motor 102 is a one-way DC brushed motor, there are two transmission lines 702 connecting the motor 102 and the control circuit board 7, which are respectively connected to the positive and negative poles of the one-way DC brushed motor. Then, the number of the micro switch 8 can be one, which is arranged on any one transmission line 702, or it can be two or more, and at least one micro switch 8 is provided on each transmission line 702. In this way, all the micro switches 8 are triggered to close, so that the motor 102 is turned on. When any one of the micro switches 8 is triggered to turn off, the motor 102 can be stopped.
  • the opening and closing of the motor 102 is directly controlled by the opening and closing signal generated by the triggering of the micro switch 8.
  • the micro switch 8 can be connected to the control circuit board 7 through a line 803.
  • the number of lines 803 can vary according to the type of the motor 102. Specifically, if the motor 102 is a three-phase brushless DC motor or a two-phase brushless DC motor, the micro switch 8 can be a bypass switch with three or two contacts, and the three or two contacts can be respectively It is connected to the control circuit board 7 through three or two lines 803. If the motor 102 is a unidirectional DC brushed motor, the micro switch 8 can be a loop switch, which can be connected to the control circuit board 7 through two lines 803 (a positive power line and a negative power line respectively). By controlling the circuit board 7 to generate an opening and closing signal, the opening and closing control of the motor 102 is easier. In actual operation, the user only needs to perform one operation to start or stop the motor 102. In this way, the operation is relatively simple.
  • the micro switch 8 can be provided with a button 801 and a reed 802 matched with the button 801.
  • the spray gun 2 is provided with a trigger 11, and the trigger 11 has a finger tip 1101 located in the spray gun 2 and matched with the reed 802. .
  • the trigger 11 can be specifically arranged at the handle housing 203, and the operator can hold it on the handle housing 203 by hand, and can conveniently perform a pinching or releasing operation on the trigger 11.
  • the trigger 11 is rotatably connected with the spray gun 2 at a position close to the finger end 1101, a resetting member 12 (for example, a spring) is provided between the spray gun 2 and the trigger 11, and the resetting member 12 applies to the trigger 11 so that it always has a direction off.
  • the reset force of the open position movement In this way, the trigger 11 is released, and the trigger 11 can be automatically reset to the off position under the action of the resetting force provided by the resetting member 12.
  • the control circuit board 7 When the trigger 11 is pulled by the operator to be in the working position, the finger 1101 presses the reed 802 downward, and the button 801 is pressed down by the reed 802. At this time, the control circuit board 7 is triggered to generate a start signal, and the start signal is added to the driving signal transmitted by the control circuit board 7 to the motor 102, and the motor 102 is then driven to run. When the operator releases the trigger 11 to restore it from the working position or switch to the off position, the finger 1101 is lifted up, and the button 801 and the reed 802 bounce up. At this time, the control circuit board 7 triggers to generate a stop signal, and the stop signal is added to the driving signal transmitted by the control circuit board 7 to the motor 102, and the motor 102 stops running immediately.
  • the opening and closing of the motor 102 is indirectly controlled by the opening and closing signal generated by the control circuit board 7 when the micro switch 8 is triggered.
  • the spray gun 2 can also be provided with a power display element 9 for indicating the remaining power of the battery pack 6 and a speed control element 10 for controlling the speed of the motor 102.
  • the power display element 9 and the speed control element 10 can be It is connected to the control circuit board 7 through the line 904 and the line 1005 respectively.
  • the power display element 9 includes a plurality of indicator lights (for example, 3, 4, 5, etc.), and there are 3 lines 904, which are 1 positive power line and 1 negative power line. And 1 power signal line.
  • the speed control element 10 has a plurality of contact points for the user to trigger.
  • the MCU on the control circuit board 7 is triggered to generate a speed control signal for adjusting the speed of the motor 102, thereby The rotation speed of the motor 102 is adjusted.
  • the rotation speed adjustment mechanism of the motor 102 may be that the driving signal provided by the control circuit board 7 to the motor 102 is a pulse width modulation signal. Based on the speed adjustment signal, the duty ratio of the driving signal is changed to realize the rotation speed adjustment of the motor 102.
  • the speed control element 10 may be equipped with a speed control display component, for example, a speed control display lamp, and the speed control display component may be connected to the control circuit board 7 through a fourth line. That is, in the embodiment where the speed control element 10 is equipped with the speed control display part, the number of the lines 1005 is four.
  • the battery pack coupling portion 15, the motor 102, and the micro switch 8 connected to the control circuit board 7 are essential components and cannot be reduced.
  • the power display element 9 and the speed control element 10 are optional components, which may be omitted in some embodiments.
  • the setting position of the control circuit board 7 needs to be considered.
  • control circuit board 7 is arranged in the host 1, the control circuit board 7 and the motor 102 are closer, and the connection line between the control circuit board 7 and the motor 102 can be shorter. But at this time, there will be a control circuit board 7 and a battery pack joint 15 between the spray gun 2 and the host 1, and a connection line between the control circuit board 7 and the micro switch 8.
  • There are at least 5 lines in the connector 3 Respectively, are at least three wires 601 connecting the control circuit board 7 and the battery pack coupling portion 15, and at least two wires 803 connecting the control circuit board 7 and the micro switch 8.
  • the power display element 9 and the speed regulating element 10 are configured, there are at least 11 lines of the connecting member 3.
  • control circuit board 7 and the battery pack junction 15, and at least 5 lines between the control circuit board 7 and the micro switch 8 there are also 3 lines between the control circuit board 7 and the power display element 9.
  • Line 904 at least three lines 1005 between the control circuit board 7 and the speed regulating element 10.
  • connection line between the control circuit board 7 and the motor 102 is shortened, since most of the electronic components connected to the control circuit board 7 are provided on the spray gun 2, the battery pack provided on the spray gun 2 will be combined.
  • the connection lines between the electronic components such as the section 15, the micro switch 8, the power display element 9, and the speed control element 10, and the control circuit board 7 are greatly extended. Therefore, the circuit of the whole machine is relatively long, the circuit connecting the battery pack joint 15, the micro switch 8, the power display element 9 and the speed regulating element 10 in the spray gun 2 is messy, the circuit structure is complicated, and the circuit layout is unreasonable.
  • the control circuit board 7 is provided in the spray gun 2. Then the connection lines between the control circuit board 7 and the battery pack joint 15, the micro switch 8, the power display element 9 and the speed control element 10 can all be arranged inside the spray gun 2, so that there is only connection control between the spray gun 2 and the host 1.
  • the micro switch 8, the battery pack 6, and the control circuit board 7 are compactly arranged in the spray gun 2, and the circuit and structure of the spray gun 2 are compact. That is, the length of the circuit used to connect the control circuit board 7 and the battery pack junction 15, the micro switch 8, the power display element 9 and the speed control element 10 in the spray gun 2 is also short, so the circuit structure is simple and the circuit The layout is more reasonable.
  • control circuit board 7 can be arranged in the horizontal casing and close to the battery pack coupling part 15, and the micro switch 8 can also be arranged in the horizontal casing and close to the control circuit board 7.
  • control circuit board 7 may be vertically arranged in a horizontal casing, and its position in the horizontal casing is roughly the part where the horizontal casing and the transition casing are connected.
  • the micro switch 8 is arranged on the upper surface of the horizontal casing near the rear end. In this way, the control circuit board 7 is located between the battery pack coupling portion 15 and the micro switch 8. In this way, the distance between the control circuit board 7 and the battery pack joint 15 and the micro switch 8 is relatively close.
  • the control circuit board 7, the battery pack joint 15 and the micro switch 8 are arranged compactly, which is not only conducive to the volume of the spray gun 2 Of shrinking. In addition, the three are close to each other, which can shorten the length of the circuit connecting the battery joint, the micro switch 8 and the control circuit board 7, so that the circuit connection is simple and the circuit layout is more reasonable.
  • the drive signal transmitted by the transmission line 702 to the motor 102 may only include the on-off signal used to control the start and stop of the motor 102. And the electrical signal that drives the motor 102 to operate.
  • the opening and closing signal is directly generated and sent out by the micro switch 8 when the micro switch 8 is set on the transmission line 702 connecting the control circuit board 7 and the motor 102, and the micro switch 8 communicates with the control circuit board 7 through the line 803.
  • the control circuit board 7 generates and sends out based on the triggering of the micro switch 8.
  • the drive signal transmitted by the transmission line 702 to the motor 102 not only includes The on-off signal for controlling the start and stop of the motor 102 and the electrical signal for driving the motor 102 to run, and also include a speed-regulating signal for shifting and adjusting the speed of the driving motor 102.
  • the speed-regulating signal is used to control the circuit board 7 when the speed-regulating element is triggered. Generate and issue.
  • the number of transmission lines 702 is not affected by whether the speed regulating element 10 is set or not. Therefore, the number of transmission lines 702 can be referred to the above description, specifically, the number of transmission lines 702 can be changed according to different types of motors 102.
  • both the opening and closing signal and the speed control signal are generated and sent out by the control circuit board 7, that is, the control circuit board 7 controls the speed adjustment and opening and closing of the motor 102 at the same time.
  • the micro switch 8 is directly connected to the control circuit board 7 through the line 803, and the number of the transmission lines 702 can be two or three.
  • the motor 102 is a two-phase DC brushless motor or a one-way DC brushless motor
  • there are two transmission lines 702 and one end of the two transmission lines 702 corresponds to the two-phase or one-way DC connection of the two-phase DC brushless motor.
  • the positive and negative poles of the brushed motor are connected to the control circuit board 7 at the other end.
  • the motor 102 is a three-phase brushless DC motor
  • One end of the three transmission lines 702 is respectively connected to the UVW three-phase of the three-phase brushless DC motor, and the other end is connected to the control circuit board 7.
  • the number of lines 803 varies depending on the type of the motor 102. Specifically, when the motor 102 is a two-phase DC brushless motor or a unidirectional DC brushless motor, there are two lines 803. When the motor 102 is a three-phase DC brushless motor, there are three lines 803.
  • the opening and closing signal is generated and sent by the micro switch 8
  • the speed control signal is generated and sent by the control circuit board 7, that is, the speed adjustment of the motor 102 is controlled by the control circuit board 7, and the opening and closing signal is controlled by the micro switch 8.
  • the switch 8 is directly controlled.
  • the micro switch 8 can be provided on the transmission line 702 connecting the motor 102 and the control circuit board 7.
  • the opening and closing signal and the speed control signal can be transmitted by the same transmission line 702, that is, the opening and closing signal and the speed control signal are simultaneously transmitted.
  • the number of transmission lines 702 may be two or three, and the specific number is related to the type of the motor 102.
  • the specific implementation is the same as the above embodiment, that is: when the motor 102 is a two-phase DC brushless motor or a unidirectional DC brushed motor, there are two transmission lines 702, and at least one micro switch 8 is provided on each of the two transmission lines 702. .
  • the motor 102 is a three-phase DC brushless motor
  • there are three transmission lines 702 and at least one micro switch 8 is provided on each of the three transmission lines 702.
  • the opening and closing signal and the speed control signal may be transmitted by different transmission lines 702 respectively, that is, the opening and closing signal and the speed control signal are transmitted separately.
  • the transmission lines 702 can be divided into two groups. The two groups of transmission lines 702 are both connected between the motor 102 and the control circuit board 7.
  • One of the transmission lines 702 is used to transmit the speed control signal sent by the control circuit board 7, and the other is the transmission line 702. It is used to transmit the opening and closing signals issued by the micro switch 8.
  • the transmission line 702 may include a first transmission line 702 and a second transmission line 702, and the first transmission line 702 is used to transmit a speed control signal.
  • the micro switch 8 is arranged on the second transmission line 702 and is used to transmit the opening and closing signals directly generated and sent out when the micro switch 8 is triggered.
  • the number of transmission lines 702 can be 3, 4, or 6.
  • the specific number of transmission lines 702 is related to the type of motor 102.
  • the number of transmission lines 702 is six, of which there are three first transmission lines 702 and three second transmission lines 702, three first transmission lines 702 and three second transmission lines 702 One end corresponds to the three phases of the three-phase brushless DC motor, and the other end is connected to the control circuit board 7.
  • the three first transmission lines 702 are used to transmit speed control signals, and at least one micro switch is provided on each of the three second transmission lines 702. 8. To control the opening and closing of the motor 102.
  • the number of transmission lines 702 is 4, of which the first transmission line 702 and the second transmission line 702 are two each, and the two first transmission lines 702 and the two second transmission lines 702 have one end respectively Corresponding to the two phases of the two-phase brushless DC motor, the other end is connected to the control circuit board 7.
  • the two first transmission lines 702 are used to transmit speed control signals, and at least one micro switch 8 is provided on each of the two second transmission lines 702 to The motor 102 is controlled to open and close.
  • the number of transmission lines 702 can be 3 or 4, among which the number of the first transmission line 702 is 2, the second transmission line 702 is 1 or 2, and the number of the first transmission line 702 is 2 702 is respectively connected to the positive and negative poles of the unidirectional DC brushed motor, and the other end is connected to the control circuit board 7 for transmitting speed control signals.
  • One or two second transmission lines 702 are connected to the positive pole of the unidirectional DC brushed motor at one end And/or the negative electrode, the other end is connected to the control circuit board 7, and one or two second transmission lines 702 are each provided with at least one micro switch 8 to control the opening and closing of the motor 102.
  • the wiring between these electronic components provided on the spray gun 2 and the control circuit board 7 can be shortened.
  • the longer connecting line, the transmission line 702 only exists in the connecting piece 3 connecting the host 1 and the spray gun 2.
  • the transmission line connecting the motor 102 and the control circuit board 7 can be greatly reduced.
  • the number of 702. As a result, the circuit structure is simplified, and the wiring becomes more reasonable.
  • the cleaning machine of the embodiment of the present invention has a separate structural design of the host 1 and the spray gun 2 including the motor 102 and the pump body 103, and connects the two through the connecting piece 3, so that the overall volume of the cleaning machine is relatively small. Small and convenient to use.
  • the operator only needs to hold the spray gun 2 to perform the cleaning operation, and the host 1 can be placed or submerged in a water source, or towed to walk, the portability is better, and the cleaning range is greatly expanded.
  • control circuit board 7 Since the control circuit board 7 is provided with electronic components, these electronic components will generate heat during operation. If the heat cannot be dissipated in time, it will adversely affect the normal operation of the control circuit board 7.
  • the control circuit board 7 is arranged in the spray gun 2 in a manner close to the first flow channel. Specifically, following the above description, the control circuit board 7 is arranged in the horizontal casing of the casing of the spray gun 2 and is arranged in a vertical state. The horizontal section 205 of the first flow path passes through the horizontal casing, and the control circuit board 7 is located on one side of the horizontal section 205. In this way, during the working process of the cleaning machine, the heat generated by the control circuit board 7 can be passed to the cleaning liquid flowing in the first flow channel and be taken away. In this way, the cleaning liquid flowing in the first flow channel of the spray gun 2 is used as the cooling medium to realize the heat dissipation and cooling of the control circuit board 7.
  • the electronic components may include, but are not limited to, resistors, capacitors, MOS transistors 701 and other components, and the number of the above components is generally multiple. Among them, compared with other components, the MOS tube 701 generates more heat and is a heat-generating concentrated component. Therefore, in order to be able to dissipate the heat generated by the MOS tube 701, multiple MOS tubes 701 can be arranged on the surface of the control circuit board 7 facing the horizontal section 205, and other components can be arranged on the surface of the control circuit board 7 facing the horizontal section 205. surface. In this way, the main heat generating components on the control circuit board 7 are closer to the first flow channel, which can effectively improve the efficiency of heat dissipation and temperature drop.
  • a plurality of MOS tubes 701 may be arranged along the length direction of the horizontal section 205. That is, the plurality of MOS tubes 701 are arranged along the flow direction of the cleaning liquid in the horizontal section 205 of the first flow channel (the arrow direction shown in FIGS. 5 to 7). As shown in FIG. 6, a plurality of MOS tubes 701 may be arranged in a single row on the control circuit board 7, and the arrangement and extension direction of the plurality of MOS tubes 701 arranged in a single row is the same as the length direction of the horizontal section 205. Or, as shown in FIG.
  • a plurality of MOS transistors 701 may be arranged on the control circuit board 7 in multiple rows and multiple columns.
  • the arrangement extension direction of the multiple MOS transistors 701 arranged in multiple rows and multiple columns is the same as the length direction of the horizontal section 205. the same.
  • the plurality of MOS tubes 701 traverse the length of the horizontal section 205 as much as possible, and the heat dissipation effect of the cleaning liquid flowing through the horizontal section 205 is fully utilized to maximize the heat dissipation effect of the plurality of MOS tubes 701.
  • the horizontal section 205 may include a cooling section 206, which is a pipe body with one end independent, which is set in the horizontal casing 201, and the two ends are respectively connected with the pipe bodies on both sides to form the cooling section 206.
  • the cooling section 206 may be made of materials with better thermal conductivity, such as metals such as iron and copper.
  • the control circuit board 7 is arranged in such a way that the electronic components are close to or close to the cooling section 206. Therefore, the distance between the electronic components and the cooling section 206 is minimized, and the heat dissipation effect is maximized.
  • part of the side wall of the cooling section 206 is a straight wall 1301.
  • the outer surface of the straight wall 1301 is flat, and the control circuit board 7 is attached to the outer surface of the straight wall 1301.
  • the other side walls connected to the straight wall 1301 may have any shape, such as a semicircular arc, a semielliptical arc, a polygonal shape, etc., so that the cross-sectional shape of the cooling section 206 is correspondingly semicircular, semi-elliptical, or polygonal.
  • the cross section of the part where the cooling section 206 is attached to the control circuit board 7 is semicircular, and both ends maintain a circular cross section, so as to facilitate the way of plugging with the pipes on both sides of it. Realize the connection.
  • the contact between the two is line contact or small surface contact.
  • the structural design of the straight wall 1301 where the cooling section 206 and the control circuit board 7 are attached to each other can maximize the contact area between the two, thereby improving the heat dissipation efficiency.
  • a heat transfer member 14 is provided between the control circuit board 7 and the outer surface of the straight wall 1301 of the cooling section 206.
  • the heat transfer member 14 can be made of a material with better thermal conductivity, such as any suitable thermal interface material (TIM , Thermal Interface Material), this type of material also has better flexibility, so that it can be filled between the electronic components and the outer surface of the straight wall 1301, exhaust the air layer between the two, and fill it with the electronic components, straight
  • TIM Thermal Interface Material
  • a sub-assembly box 13 is fixed in the horizontal casing 201, the control circuit board 7 is provided on the sub-assembly box 13, and the sub-assembly box 13 is connected to the cooling section 206.
  • the sub-packaging box 13 can be used as a carrier to realize the fixation of the control circuit board 7 and the cooling section 206.
  • the cooling section 206 and the sub-packing box 13 are connected at a straight wall 1301, and the cooling section 206 and the sub-packing box 13 share the straight wall 1301. That is, the cooling section 206 and the packaging box 13 are integrally constructed, and the straight wall 1301 constitutes a part of the structure of the packaging box 13 itself.
  • control circuit board 7 arranged on the sub-packaging box 13 and the cooling medium flowing through the cooling section 206 are only separated by a straight wall 1301, so that the solid between the MOS tube 701 and the cooling medium arranged on the control circuit board 7
  • the heat insulation is compressed to the utmost extent, effectively improving the heat dissipation efficiency.
  • the dispensing box 13 includes a bottom wall 1302 connected to the straight wall 1301 of the cooling section 206, and the straight wall 1301 and the bottom wall 1302 partially overlap.
  • the bottom wall 1302 of the sub-packaging box 13 is formed by a straight wall 1301 and an extension formed by the straight wall 1301 extending outward in a direction perpendicular to the length of the cooling section 206 (the extension in the up-and-down direction as shown in FIG. 4) Department of common structure.
  • the control circuit board 7 can be fixed on the bottom wall 1302 by screw connection.
  • the dispensing box 13 may further include a protrusion 1303 formed on the edge of the bottom wall 1302, and the protrusion 1303 and the bottom wall 1302 define a receiving groove in which the control circuit board 7 is received.
  • the control circuit board 7 is not higher than the protrusion 1303, so it is completely contained in the accommodating groove. Therefore, effective protection can be formed for the control circuit board 7.
  • the heat generated by the control circuit board 7 can be transferred to the cleaning liquid flowing in the horizontal section 205 during the working process of the cleaning machine. Was taken away.
  • the cleaning liquid flowing in the horizontal section 205 of the spray gun 2 is used as a cooling medium to realize heat dissipation and cooling of the control circuit board 7.

Landscapes

  • Cleaning By Liquid Or Steam (AREA)

Abstract

一种清洗机,包括:主机(1),包括电机(102)及被电机(102)旋转驱动的泵体(103);喷枪(2),包括用于供清洗液流通的第一流道;连接主机(1)与喷枪(2)的连接件(3)设有第二流道;泵体(103)的出口端通过第二流道与第一流道连通;喷枪(2)上设有与电机(102)电连接并控制电机(102)启闭的微动开关(8)、用于安装电池包(6)的电池包结合部(15)、与电池包结合部(15)电连接的控制线路板(7);连接件(3)还包括传输线(702),控制线路板(7)通过传输线(702)与电机(102)电连接,以控制电机(102);传输线(702)的数量最多不超过6根。该清洗机在实现整机体积较小、便携性较佳的前提下,使线路连接更加简单,电路布局更趋合理。

Description

清洗机
本申请要求了申请日为2019年12月6日,申请号为201911243895.0的中国专利申请的优先权,其全部内容通过引用结合在本申请中。
技术领域
本发明涉及一种带压清洗装置,特别涉及一种清洗机。
背景技术
清洗机作为一种可产生高压水流用来冲洗物体表面的清洁设备,被广泛应用于工作生活的各个领域。特别是在户外庭院、机动车道和人行道等具有混凝土结构表面以及在轨道、围栏、汽车等具有坚硬表面的清洁过程中,具有良好的效果。
在一种已知实施例中,清洗机可以为座式,座式的清洗机上通常缠绕有软管,在使用时,需将软管连接至自来水龙头或者将软管的一端插入至水源中。如此,清洗机上须缠绕的软管较长,造成清洗机体积较大,不便于移动,从而清洗范围受限,便携性较差。
此外,为提高清洗液的喷出速度以及对清洗液的喷出速度记性调节,清洗机通常还配备有用于对清洗液进行增压的泵体、驱动泵体运转的电机、对电机进行转速控制以实现清洗液喷出速度/压力调节的控制线路板(PCB板)、控制电机启停的开关,等等。上述元件的排布设置,不仅关系到清洗机的便携性问题,还关系到电路布局的合理性问题。
因此,如何兼顾清洗机的便携性和电路布局,是亟待解决的技术问题。
发明内容
基于前述的现有技术缺陷,本发明实施例提供了一种清洗机,其在实现整机体积较小、便携性较佳的前提下,使线路连接更加简单,电路布局更趋合理。
为了实现上述目的,本发明提供了如下的技术方案。
一种清洗机,包括:
主机,包括电机及被所述电机旋转驱动的泵体;
喷枪,包括用于供清洗液流通的第一流道;
连接所述主机与所述喷枪的连接件,所述连接件设有第二流道;所述泵体的出口端通过所述第二流道与所述第一流道连通;
所述喷枪上设有与所述电机电连接并控制所述电机启闭的微动开关、用于安装电池包的电池包结合部、与所述电池包结合部电连接的控制线路板;
所述连接件还包括传输线,所述控制线路板通过所述传输线与所述电机电连接,以控制所述电机;所述传输线的数量最多不超过6根。
优选地,所述微动开关被触发时产生启闭信号;所述传输线至少用于传输启闭信号,以控制所述电机启停。
优选地,所述清洗机还包括设在所述喷枪上并与所述控制线路板电连接的调速元件;所述控制线路板在所述调速元件被触发时产生并发出调速信号;所述传输线还用于传输所述调速信号,以控制所述电机调速。
优选地,所述微动开关与所述控制线路板电连接,所述启闭信号在所述微动开关被触发时由所述控制线路板产生并发出。
优选地,所述微动开关设在所述传输线上,所述启闭信号由所述微动开关被触发时产生并发出。
优选地,所述电机为三相直流无刷电机,所述传输线为3根,分别对应连接所述三相直流无刷电机的三相;或者,
所述电机为二相直流无刷电机,所述传输线为2根,分别对应连接所述二相直流无刷电机的二相;或者,
所述电机为单向直流有刷电机,所述传输线为2根,分别对应连接所述单向直流有刷电机的正负极。
优选地,所述传输线包括第一传输线和第二传输线,所述第一传输线用于传输所述调速信号;所述微动开关设在所述第二传输线上,所述启闭信号由所述微动开关被触发时产生并发出,所述第二传输线用于传输所述启闭信号。
优选地,所述电机为三相直流无刷电机,所述第一传输线和第二传输线均为3根,3根所述第一传输线分别对应连接所述三相直流无刷电机的三相,3根所述第二传输线也分别对应连接所述三相直流无刷电机的三相;或者,
所述电机为二相直流无刷电机,所述第一传输线和第二传输线均为2根,2根所述第一传输线分别对应连接所述二相直流无刷电机的二相,2根所述第二传输线也分别对应连接所述二相直流无刷电机的二相;或者,
所述电机为单向直流有刷电机,所述第一传输线为2根,所述第二传输线为1根或2根,2根所述第一传输线分别对应连接所述单向直流有刷电机的正负极,1根或2根所 述第二传输线连接所述单向直流有刷电机的正极和/或负极。
优选地,所述调速元件至少通过3根线路与控制线路板实现电连接,所述至少3根线路包括1根正极电源线、1根负极电源线和1根调速信号线。
优选地,所述调速元件设有调速显示部件,所述调速显示部件通过第4根线路与所述控制线路板电连接。
优选地,所述喷枪上还设有用于指示所述电池包剩余电量的电量显示元件,所述电量显示元件至少通过3根线路与所述控制线路板电连接,所述至少3根线路包括1根正极电源线、1根负极电源线和1根电量信号线。
优选地,当所述电池包结合部被配置为用于安装单电池包时,所述电池包结合部通过3根线路与所述控制线路板电连接,所述3根线路包括1根正极电源线、1根负极电源线和1根温度信号线。
优选地,当所述电池包结合部被配置为用于安装双电池包时,所述电池包结合部通过5根线路与控制线路板实现电连接,所述5根线路包括1根正极电源线、1根负极电源线、1根中间相位线和2根温度信号线。
优选地,所述喷枪包括将所述第一流道收纳至其内的喷枪壳体,所述喷枪壳体包括水平机壳、位于所述水平机壳后端并向下延伸的手柄机壳、与所述水平机壳连接并向下延伸的过渡机壳,所述的过渡机壳位于所述手柄机壳的前方;
所述第一流道至少具有进液口,所述进液口位于所述手柄机壳中,所述电池包结合部设在所述过渡机壳上。
优选地,所述第一流道包括位于所述水平机壳中的水平段、与所述水平段连接并位于所述手柄机壳中的倾斜段;所述倾斜段背离所述水平段的端部开口形成所述进液口,所述水平段背离所述倾斜段的端部开口形成出液口。
优选地,所述控制线路板设在所述水平机壳中并靠近所述电池包结合部;所述微动开关设在所述水平机壳中并靠近所述控制线路板。
优选地,所述控制线路板位于所述水平段的一侧,所述控制线路板上设有电子元器件,所述电子元器件至少包括多个MOS管,多个所述MOS管设在所述控制线路板面对所述水平段的表面,且多个所述MOS管沿所述水平段的长度方向排布。
优选地,所述水平段包括冷却段,所述冷却段的部分侧壁为直壁,所述控制线路板设在所述直壁上,且所述控制线路板与所述直壁之间设有传热件。
优选地,所述控制线路板设在分装盒内,所述冷却段与所述分装盒连接,所述分装 盒固定在所述水平机壳内;所述分装盒包括与所述冷却段的直壁连接的底壁,所述直壁与所述底壁部分重合,所述控制线路板固定在所述底壁上。
优选地,所述分装盒还包括形成在所述底壁边缘的凸起,所述凸起与所述底壁限定出将所述控制线路板收容在其内的容置凹槽。
一种清洗机,包括:
主机,包括电机及被所述电机旋转驱动的泵体;
喷枪,包括用于供清洗液流通的第一流道;
连接所述主机与所述喷枪的连接件,所述连接件设有第二流道;所述泵体的出口端通过所述第二流道与所述第一流道连通;
所述喷枪上设有与所述电机电连接并控制所述电机启停的微动开关、用于安装电池包的电池包结合部、与所述电池包结合部电连接的控制线路板。
通过将除去电机以外的其他需要与控制线路板连接的电子部件设在喷枪上,可以缩短这些设在喷枪上的电子部件与控制线路板之间的线路。而较长的连接线路即传输线,仅存在于连接主机和喷枪的连接件中。并且,通过将控制线路板也设在喷枪上,相较于将控制线路板设在主机上的现有技术而言,可极大的缩减连接电机和控制线路板的传输线的数量。从而,线路结构得以简化,布线更趋合理。
此外,通过将包含电机和泵体的主机和喷枪分离式的结构设计,并将两者之间通过连接件连接起来,使得清洗机整体体积较小,使用较为方便。操作时,操作人员只需握持喷枪即可进行清洗作业,而主机可放置或淹没在水源中,或被拖曳行走,便携性较佳,清洗范围得到极大的扩展。
附图说明
图1为本发明实施例的清洗机的整体结构示意图;
图2为图1所示的清洗机所包含的喷枪的局部放大结构示意图;
图3为图1或图2所示的清洗机的电路模块拓扑图;
图4为图1中A1-A1截面的剖视图;
图5为图1中A9-A9截面的剖视图;
图6为电子元器件在控制线路板上一种排布图;
图7为电子元器件在控制线路板上另一种排布图。
具体实施方式
为使本技术领域的人员更好地理解本发明中的技术方案,下面将结合本发明实施例中的附图,对本发明实施例中的技术方案进行清楚、完整地描述,显然,所描述的实施例仅仅是本发明一部分实施例,而不是全部的实施例。基于本发明中的实施例,本领域普通技术人员在没有做出创造性劳动的前提下所获得的所有其他实施例,都应当属于本发明保护的范围。
需要说明的是,当元件被称为“设置于”另一个元件,它可以直接在另一个元件上或者也可以存在居中的元件。当一个元件被认为是“连接”另一个元件,它可以是直接连接到另一个元件或者可能同时存在居中元件。本文所使用的术语“垂直的”、“水平的”、“左”、“右”以及类似的表述只是为了说明的目的,并不表示是唯一的实施例。
除非另有定义,本文所使用的所有的技术和科学术语与属于本发明的技术领域的技术人员通常理解的含义相同。本文中在本发明的说明书中所使用的术语只是为了描述具体的实施例的目的,不是旨在于限制本发明。本文所使用的术语“和/或”包括一个或多个相关的所列项目的任意的和所有的组合。
在本说明书中,将本发明实施例的清洗机在正常使用状态下,指向或面对工作表面的方向定义为“前”,将与之相反,指向或面对持有用户的方向定义为“后”。更具体的,将图1和图2中所示意的向右的方向定义为“前”,将图1和图2中所示意的向左的方向定义为“后”。
值得注意的是,本说明书中的对各方向定义,只是为了说明本发明技术方案的方便,并不限定本发明实施例的清洗机在包括但不限定于使用、测试、运输和制造等等其他可能导致清洗机方位发生颠倒或者位置发生变换的场景中的方向。
如图1和图2所示,本发明实施例的清洗机主要包括两大部分,即主机1和喷枪2。两者通过连接件3实现连接。
主机1可包括主机壳体101、设在主机壳体101内的电机102和泵体103,泵体103被电机102旋转驱动。电机102和泵体103可在主机壳体101中上下布置,电机102在下,泵体103在上。并且,电机102与泵体103之间还可设置减速机构104(例如行星齿轮系)。泵体103的出口端可通过插接的方式与连接件3实现可拆卸连接。为提高对清洗液的加压效果,泵体103可以为柱塞泵。主机壳体101的侧壁可设有与泵体103的进口端连通的进水口105,具体的,进水口105形成在主机壳体101的下端,主机壳体101的下端以可拆卸的方式连接有支撑座106,支撑座106与主机壳体101下端之间设 有滤网,支撑座106上具有与进水口105连通的进水孔107,自进水孔107流入的水经过滤网过滤后,流入进水口105。
喷枪2可包括喷枪壳体,喷枪壳体可以为哈弗结构拼装形成,包括大致水平布置的水平机壳201、位于水平机壳201后端向下延伸并与水平机壳201呈一定角度布置的手柄机壳202、与水平机壳201连接并向下延伸过渡机壳203。过渡机壳203的延伸方向与手柄机壳202的延伸方向大致相同,并且过渡机壳203位于手柄机壳202的前方,即过渡机壳203与手柄机壳202隔离。
此外,过渡机壳203的下端可通过桥接部207与手柄机壳202连接,以此提高过渡机壳203的强度。并且,桥接部207呈空心结构,以便于供后文提及的传输线702穿设和收纳。
喷枪2还可以包括用于供清洗液流通的第一流道,其被收纳在喷枪壳体中,由中空管体限定而成。第一流道的走势为由手柄机壳202的底部倾斜向上延伸,并在手柄机壳202和水平机壳201相接处转由水平机壳201的后端向前端延伸。因此,第一流道可分段设计,包括位于手柄机壳202中的倾斜段204和位于水平机壳201中的水平段205。其中,倾斜段204的上端设有朝向水平段205的水平弯头2041,水平段205与水平弯头2041通过插接的方式实现可拆卸连接。或者,水平段205的后端设有朝向倾斜段204的倾斜弯头,倾斜段204与倾斜弯头通过插接的方式连接。籍此,实现第一流道的分段可拆卸连接。
第一流道具有进液口204a和出液口205a,具体可以为倾斜段204背离水平段205的端部(下端)开口形成进液口204a,水平段205背离倾斜段的端部(前端)开口形成出液口205a。从而,进液口204a和出液口205a分别位于手柄机壳和水平机壳中。进一步地,喷枪2的前端可设置与第一流道的出液口205a连通的枪管4,枪管4的末端可设置用于调节出液量大小的喷头组件5。这样,电机102驱动泵体103运转,从进水口105吸液并加压,加压后的清洗液经连接件3进入第一流道,并最终经枪管4和喷头组件5高速喷出,实现对物体表面的清洗。
连接件3具有柔弹性或者可变形性,其内可设有第二流道302,连通泵体103的出口端与第一流道。具体的,第二流道302可与泵体103的进口端、第一流道的进液口204a通过插接的方式实现可拆卸式连接。
如图2和图3所示,喷枪2上可设有与电机102电连接并控制电机102启闭的微动开关8、用于安装电池包6的电池包结合部15、与电池包结合部15电连接的控制线路 板7。连接件3还可以包括传输线702,控制线路板7可通过传输线702与电机102电连接,以控制电机102的运转。
电池包结合部15供电池包6可拆卸连接,安装的电池包6用于为电机102供电。电池包结合部15的数量与电池包6数量相同,并被配置为能够通过滑动、卡接、扣接等方式使电池包6实现连接或脱离。如图3所示,电池包结合部15可通过线路601与控制线路板7实现电连接。
线路601的数量可根据电池包结合部15可安装的电池包6的数量而适配性变化。具体的,如果电池包结合部15被配置为仅能够安装单电池包,即电池包6为单包时,则线路601的数量可以为3根,分别为1根正极电源线、1根负极电源线和1根温度信号线。而如果电池包结合部15被配置为能够安装双电池包,即电池包6为双包时,则线路601可为5根,分别为1根正极电源线、1根负极电源线、1根中间相位线和2根温度信号线。其中,正极电源线和负极电源线用于供电,温度信号线用于将电池包6的温度数据上传给控制线路板7,以在电池包6的温度达到预定值时控制断电,防止电池包6温度过高。
如图2所示,在一个优选地实施例中,电池包结合部15可设在过渡机壳203中。如此,可充分利用喷枪壳体的内部空间,为控制线路板7、微动开关8的设置腾出空间。并且,电池包结合部15设在过渡机壳203中,可使电池包6远离第一流道的进液口204a和出液口205a,避免因进液口204a和出液口205a与第二流道302或枪管4密封不严而出现液体渗漏,进而导致电池包6被渗漏的液体潮化而引发短路等问题。
在本实施例中,微动开关8被触发时可产生启闭信号,连接控制线路板7与电机102的传输线702至少用于传输启闭信号以控制电机102启停。进一步地,传输线702还可以向电机102传输用于驱动其运转的电信号。
连接件3包括传输线702具体可以为,传输线702设在连接件3的第二流道302中,或者传输线702设在连接件3的侧壁中,亦或者传输线702设在连接件3外,与连接件3分开设置。在传输线702设于第二流道302中或设在连接件3外的实施例中,传输线702可包括线芯和包裹在线芯外的绝缘层,以避免漏电事故。在传输线702设于连接件3侧壁中的实施例中,连接件3由绝缘材料制成,则连接件3可对传输线702起绝缘和防漏电作用,该实施例中的连接件3具体可以为水电一体管,则连接件3在与第一流道插接实现水路连接的同时,可实现电机102与控制线路板7的电连接。
在本实施例中,启闭信号可以由微动开关8直接产生并发出,也可以由控制线路板 7基于微动开关8被触发而产生并发出。其中,在由微动开关8直接产生并发出的实施例中,微动开关8可设在连接电机102和控制线路板7之间的传输线702上,则微动开关8被触发闭合或断开,可直接导通或断开控制线路板7与电机102之间的电连接。
在该实施例中,微动开关8的数量可以根据电机102类型的不同而变化。具体的,电机102可以为三相直流无刷电机、二相直流无刷电机或单向直流有刷电机。其中,三相直流无刷电机或二相直流无刷电机在至少部分相导通的情况下即可运转,在三相或二相均失电的情况下停止运转。例如,三相直流无刷电机的UVW三相均导通,或者UVW三相中失电其中任意一相或两相,三相直流无刷电机即可运转。而单向直流有刷电机的正负极均导通的情况下运转,在其中一极或二极断开的情况下停止运转。
因此,当电机102为三相直流无刷电机或二相直流无刷电机时,连接电机102和控制线路板7的传输线702分别为3根或2根,分别对应连接三相直流无刷电机或二相直流无刷电机的三相或二相。则微动开关8的数量不少于传输线702的数量,每个传输线702上各至少设有一个微动开关8。这样,触发所有微动开关8断开,切断控制电路板与三相直流无刷电机或二相直流无刷电机全部相之间的导通关系,实现对电机102的停转控制。即需要操作3次或2次,将所有微动开关8均断开,方能使电机102停转。或者,触发所有微动开关8闭合,或触发其中部分微动开关8断开而保留至少一个微动开关8处于闭合状态,来实现对电机102的开启控制。
而当电机102为单向直流有刷电机时,连接电机102和控制线路板7的传输线702为2根,分别对应连接单向直流有刷电机的正负极。则微动开关8的数量可以为1个,设在任意1根传输线702上,或者也可以为2个或多个,每根传输线702上各至少设置1个微动开关8。这样,触发所有微动开关8闭合,使电机102实现开启。而触发其中任意1个微动开关8断开,即可使电机102停转。
籍此,电机102的启闭由微动开关8被触发而产生的启闭信号直接控制。
继续参阅图3,在启闭信号由控制线路板7产生并发出的实施例中,微动开关8可通过线路803与控制线路板7连接。线路803的数量可根据电机102类型的不同而变化。具体的,如果电机102为三相直流无刷电机或二相直流无刷电机,则微动开关8可以为旁路开关,具有三个或二个触点,三个或二个触点可分别通过3根或2根线路803与控制线路板7连接。而如果电机102为单向直流有刷电机,则微动开关8可以为回路开关,其可通过2根线路803(分别为正极电源线和负极电源线)与控制线路板7连接。通过控制线路板7产生启闭信号,则电机102的启闭控制较为容易。实际操作时,用户只需 要操作1次,即可实现电机102的开启或停止。如此,操作较为简便。
结合图2所示,微动开关8可设有按钮801及与按钮801配合的簧片802,喷枪2上设有扳机11,扳机11具有位于喷枪2内且与簧片802配合的指端1101。扳机11具体可设在手柄机壳203处,操作人员用手握持在手柄机壳203上,可方便的对扳机11执行捏合或释放操作。
进一步地,扳机11在靠近指端1101的位置处与喷枪2转动连接,喷枪2和扳机11之间设有复位件12(例如,弹簧),复位件12向扳机11施加使其始终具有朝向断开位置运动的复位力。这样,释放扳机11,扳机11在复位件12提供的复位力的作用下能够自动复位到断开位置。
当扳机11被操作人员用手扳动而处于工作位置时,指端1101向下压簧片802,进而按钮801被簧片802压下。此时,控制线路板7触发产生启动信号,启动信号被添加至控制线路板7传输给电机102的驱动信号中,电机102随即被驱动运转。而当操作人员释放扳机11而使其由工作位置恢复或切换至断开位置时,指端1101上抬,按钮801和簧片802弹起。此时,控制线路板7触发产生停止信号,停止信号被添加至控制线路板7传输给电机102的驱动信号中,电机102随即停止运转。
籍此,电机102的启闭由控制线路板7在微动开关8被触发而产生的启闭信号间接控制。
结合参阅图1至图3,喷枪2上还可设有用于指示电池包6剩余电量的电量显示元件9以及用于控制电机102转速的调速元件10,电量显示元件9和调速元件10可分别通过线路904和线路1005与控制线路板7连接。如图3所示,电量显示元件9包括多个指示灯(例如,3个、4个、5个…等等),线路904为3根,分别为1根正极电源线、1根负极电源线和1根电量信号线。
调速元件10具有用于供用户触发的多个触点,用户操作使其处于不同的触点位置,则控制线路板7上的MCU被触发产生用于调节电机102转速的调速信号,从而实现电机102的转速调节。其中,电机102的转速调节机制可以为,控制线路板7向电机102提供的驱动信号为脉宽调制信号,基于调速信号,改变驱动信号的占空比,即可实现电机102的转速调节。
线路1005亦可为3根,分为1根正极电源线、1根负极电源线和1根调速信号线。进一步地,调速元件10可配置有调速显示部件例如可以为调速显示灯,则调速显示部件可通过第4根线路与控制线路板7连接。即在调速元件10配置有调速显示部件的实 施例中,线路1005的数量为4根。
需要说明的是,与控制线路板7连接的电池包结合部15、电机102、微动开关8为必要部件,不可减省。而电量显示元件9和调速元件10为可选部件,在某些实施例中可以省去。
完成上述电子部件的设置、线路连接设计之后,需要考虑控制线路板7的设置位置。
在一种可行的方案中,若将控制线路板7设在主机1内,则控制线路板7与电机102之间较为靠近,则控制线路板7与电机102之间的连接线路可以较短。但此时,喷枪2和主机1之间会存在控制线路板7与电池包结合部15,以及控制线路板7和微动开关8之间的连接线路,则连接件3中至少存在5根线路,分别为连接控制线路板7与电池包结合部15的至少3根线路601,以及连接控制线路板7与微动开关8的至少2根线路803。而在配置电量显示元件9和调速元件10的实施例中,连接件3的线路至少可达11根。具体为,除控制线路板7与电池包结合部15,以及控制线路板7和微动开关8之间的至少5根线路以外,还有控制线路板7与电量显示元件9之间的3根线路904、控制线路板7与调速元件10之间的至少3根线路1005。
如此,尽管缩短了控制线路板7与电机102之间的连接线路,但由于与控制线路板7连接的大多数电子部件是设在喷枪2上的,会造成设在喷枪2上的电池包结合部15、微动开关8、电量显示元件9和调速元件10等电子部件与控制线路板7之间的连接线路大大延长。从而,整机线路较长,喷枪2内连接电池包结合部15、微动开关8、电量显示元件9和调速元件10的线路较乱,线路结构复杂,线路布局不合理。
有鉴于此,在本实施例中,将控制线路板7设在喷枪2中。那么控制线路板7与电池包结合部15、微动开关8、电量显示元件9和调速元件10之间的连接线路可以都布置在喷枪2内部,从而喷枪2和主机1之间只有连接控制线路板7与电机102之间的传输线702。实践证明,采用上述的结构布局设计,传输线702的数量最多不超过6根,从而可极大的缩减主机1与喷枪2之间的线路数量。并且,微动开关8、电池包6、控制线路板7在喷枪2中紧凑的设置在一起,喷枪2上线路和结构紧凑。即在喷枪2内用于连接控制线路板7与电池包结合部15、微动开关8、电量显示元件9和调速元件10等电子部件的线路的长度也较短,从而线路结构简单,线路布局更加合理。
如图2所示,控制线路板7可设在水平机壳中并靠近电池包结合部15,而微动开关8同样可设在水平机壳中并靠近控制线路板7。具体的,控制线路板7可竖直设置在水平机壳,其在水平机壳中的位置大致为水平机壳与过渡机壳相连接的部位。微动开关8 设在水平机壳靠近后端的上表面。这样,控制线路板7处于电池包结合部15和微动开关8之间。如此,控制线路板7与电池包结合部15和微动开关8的距离均较近,控制线路板7、电池包结合部15及微动开关8被紧凑的布设的一起,不仅利于喷枪2体积的缩小。并且,三者彼此互相靠近,可缩短连接电池结合部、微动开关8与控制线路板7的线路长度,使线路连接简单,电路布局较为合理。
综上,在电机102不具备换挡调速功能,即不存在调速元件10的实施例中,传输线702向电机102传输的驱动信号中可以仅包括用于控制电机102启停的启闭信号和驱动电机102运转的电信号。其中,启闭信号在微动开关8设于连接控制线路板7与电机102之间的传输线702上时由微动开关8直接产生并发出,在微动开关8通过线路803与控制线路板7连接的实施例中由控制线路板7基于微动开关8被触发而产生并发出。
相应的,在电机102具备换挡调速功能,即存在调速元件10,且调速元件10与控制线路板7电连接的实施例中,传输线702向电机102传输的驱动信号中不仅包括用于控制电机102启停的启闭信号和驱动电机102运转的电信号,还包括用于驱动电机102换挡调速的调速信号,调速信号为控制线路板7在调速元件被触发时产生并发出。
由于调速元件10与控制线路板7通过线路1005连接,即调速元件10不涉及设在传输线702上的实施例。从而,传输线702的数量不受调速元件10设置与否的影响。因此,传输线702的数量可参照上文描述,具体可以为传输线702的数量可根据电机102类型的不同而变化。
具体的,例如,在一种实施例中,启闭信号和调速信号均由控制线路板7产生并发出,即控制线路板7同时控制电机102调速和启闭。此时,微动开关8通过线路803与控制线路板7直接相连,传输线702的数量可以为2根或者3根。具体的,当电机102为二相直流无刷电机或单向直流有刷电机时,传输线702为2根,2根传输线702的一端分别对应连接二相直流无刷电机的二相或者单向直流有刷电机的正负极,另一端连接控制线路板7。而当电机102为三相直流无刷电机时,传输线702为3根,3根传输线702的一端分别对应连接三相直流无刷电机的UVW三相,另一端连接控制线路板7。
在上述实施例中,线路803的数量因电机102类型不同而变化。具体的,当电机102为二相直流无刷电机或者单向直流有刷电机时,线路803为2根。当电机102为三相直流无刷电机时,线路803为3根。
或者,在另一个实施例中,启闭信号由微动开关8产生并发出,调速信号由控制线路板7产生并发出,即电机102调速由控制线路板7控制,而启闭由微动开关8直接控 制。此时,微动开关8可设在连接电机102与控制线路板7的传输线702上。
其中,启闭信号和调速信号可由相同的传输线702实现传输,即启闭信号和调速信号被同时传输。则传输线702的数量可以为2根或者3根,具体数量与电机102的类型有关。具体实现方式与上述实施例相同,即:当电机102为二相直流无刷电机或单向直流有刷电机时,传输线702为2根,2根传输线702上各至少设有一个微动开关8。当电机102为三相直流无刷电机时时,传输线702为3根,3根传输线702上各至少设有一个微动开关8。
或者,启闭信号和调速信号可分别由不同的传输线702传输,即启闭信号和调速信号被分开传输。则传输线702可被分成两组,两组传输线702均连接在电机102和控制线路板7之间,其中一组传输线702用于传输由控制线路板7发出的调速信号,另一组传输线702用于传输由微动开关8发出的启闭信号。
具体的,传输线702可包括第一传输线702和第二传输线702,第一传输线702用于传输调速信号。微动开关8设在第二传输线702上,用于传输由微动开关8被触发时而直接产生并发出的启闭信号。则传输线702的数量可以为3根、4根或6根,同样的,传输线702的具体数量与电机102的类型有关。即,当电机102为三相直流无刷电机时,传输线702的数量为6根,其中第一传输线702和第二传输线702各为3根,3根第一传输线702和3根第二传输线702的一端分别对应连接三相直流无刷电机的三相,另一端连接控制线路板7,3根第一传输线702用于传输调速信号,3根第二传输线702上各至少设置一个微动开关8,以控制电机102启闭。当电机102为二相直流无刷电机,传输线702的数量为4根,其中第一传输线702和第二传输线702各为2根,2根第一传输线702和2根第二传输线702的一端分别对应连接二相直流无刷电机的二相,另一端连接控制线路板7,2根第一传输线702用于传输调速信号,2根第二传输线702上各至少设置一个微动开关8,以控制电机102启闭。而当电机102为单向直流有刷电机时,传输线702的数量可以为3根或4根,其中第一传输线702为2根,第二传输线702为1根或2根,2根第一传输线702分别对应连接单向直流有刷电机的正负极,另一端连接控制线路板7,用于传输调速信号,1根或2根第二传输线702的一端连接单向直流有刷电机的正极和/或负极,另一端连接控制线路板7,1根或2根第二传输线702上各至少设置一个微动开关8,以控制电机102启闭。
由此,通过将除去电机102以外的其他需要与控制线路板7连接的电子部件设在喷枪2上,可以缩短这些设在喷枪2上的电子部件与控制线路板7之间的线路。而较长的 连接线路即传输线702,仅存在于连接主机1和喷枪2的连接件3中。并且,通过将控制线路板7也设在喷枪2上,相较于将控制线路板7设在主机1上的现有技术而言,可极大的缩减连接电机102和控制线路板7的传输线702的数量。从而,线路结构得以简化,布线更趋合理。
此外,本发明实施例的清洗机,通过将包含电机102和泵体103的主机1和喷枪2分离式的结构设计,并将两者之间通过连接件3连接起来,使得清洗机整体体积较小,使用较为方便。操作时,操作人员只需握持喷枪2即可进行清洗作业,而主机1可放置或淹没在水源中,或被拖曳行走,便携性较佳,清洗范围得到极大的扩展。
由于控制线路板7上设置有电子元器件,这些电子元器件在工作过程中会发热。如热量不能及时的散发出去,将对控制线路板7的正常工作产生不利影响。有鉴于此,控制线路板7在喷枪2中以靠近第一流道的方式设置。具体的,承接上文描述,控制线路板7设在喷枪2机壳的水平机壳中,并且呈竖直状态设置。第一流道的水平段205穿设在水平机壳中,控制线路板7位于水平段205的一侧。这样,清洗机在工作过程中,控制线路板7产生的热量能递给第一流道中流动的清洗液并被带走。从而借助喷枪2自带的第一流道中流动的清洗液作为冷却介质,来实现对控制线路板7的散热和冷却。
如图4和图5所示,控制线路板7上设有电子元器件,电子元器件可包括但不限于电阻、电容、MOS管701等元件,并且上述元件的数量一般为多个。其中,相较于其他元件,MOS管701产热较多,为产热集中部件。因此,为了能够将MOS管701的产热散发出去,多个MOS管701可设在控制线路板7面对水平段205的表面,而其他元件可设在控制线路板7背对水平段205的表面。这样,控制线路板7上主要的产热部件更加靠近第一流道,可有效提高散热温降效率。
进一步地,为提高MOS管701的散热效率,多个MOS管701可沿水平段205的长度方向排布。也就是,多个MOS管701沿第一流道的水平段205中清洗液的流动方向(如图5至图7所示的箭头方向)排布。如图6所示,多个MOS管701可呈单排布置在控制线路板7上,单排布置的多个MOS管701的排布延伸方向与水平段205的长度方向相同。或者,如图7所示,多个MOS管701可呈多排多列布置在控制线路板7上,多排多列布置的多个MOS管701的排布延伸方向与水平段205的长度方向相同。如此,多个MOS管701尽可能的遍历水平段205的长度,充分利用流经水平段205的清洗液的散热作用,实现对多个MOS管701散热效果的最大化。
在一个实施例中,水平段205可包括冷却段206,其为一端独立的管体,设在水平 机壳201中,两端分别与两侧的管体连接,构成冷却段206。优选地,冷却段206可以由导热性能较佳的材料例如铁、铜等金属制成。控制线路板7以电子元器件靠近或贴近冷却段206的方式设置。由此,尽量减小电子元器件与冷却段206的距离,最大限度的提高散热效果。
如图4所示,为提高控制线路板7与冷却段206的接触面积,冷却段206的部分侧壁为直壁1301。如此,直壁1301的外表面为平面,控制线路板7与直壁1301的外表面贴合。而与直壁1301相连的其他侧壁可呈任意形状,例如半圆弧状、半椭圆弧状、多边形状等,从而冷却段206的截面形状对应呈半圆形、半椭圆形、多边形状。结合图5所示,较佳地,冷却段206与控制线路板7贴合的部位的截面呈半圆形,其两端保持圆形截面,以方便与其两侧的管体通过插接的方式实现连接。
如果冷却段206与控制线路板7贴合的部位呈弧状或多边形状,两者之间的接触为线接触或者较小的面接触。而通过将冷却段206与控制线路板7贴合的部位为直壁1301的结构设计,可最大限度的提高两者的接触面积,进而提高散热效率。
进一步地,控制线路板7与冷却段206的直壁1301外表面之间设有传热件14,传热件14可以由导热性能较佳的材料制成,例如任意合适的导热界面材料(TIM,Thermal Interface Material),该类材料还具有较佳的柔性,从而可以填充在电子元器件与直壁1301外表面之间,排出两者之间的空气层,并填补其与电子元器件、直壁1301外表面接触时所产生的微空隙和表面凹凸不平的孔洞,进而可降低热阻,提高散热效率。
如图4所示,水平机壳201中固定设有分装盒13,控制线路板7设在分装盒13上,分装盒13与冷却段206连接。这样,分装盒13可作为承载件,实现控制线路板7和冷却段206的固定。
由于发挥散热作用的主要是流经冷却段206的清洗液。因此,为了尽量减小待冷却部件与冷却介质之间的距离,冷却段206与分装盒13在直壁1301处连接,冷却段206与分装盒13共用直壁1301。即冷却段206与分装盒13一体构造,直壁1301构成分装盒13自身结构的一部分。这样,设在分装盒13上的控制线路板7与流经冷却段206的冷却介质仅隔一层直壁1301,从而设在控制线路板7上的MOS管701与冷却介质之间的固体隔热被最大限度的压缩,有效的提高散热效率。
具体而言,分装盒13包括与冷却段206的直壁1301连接的底壁1302,直壁1301与底壁1302部分重合。或者,也可以说,分装盒13的底壁1302由直壁1301及由直壁1301在垂直于冷却段206长度方向上向外延伸(如图4所示的上下方向的延伸)形成的 延伸部共同构造。控制线路板7可通过螺钉连接的方式固定在底壁1302上。
并且,分装盒13还可以包括形成在底壁1302边缘的凸起1303,凸起1303与底壁1302限定出将控制线路板7收容在其内的容置凹槽。控制线路板7不高出凸起1303,因此被完全收容在容置凹槽中。从而,可对控制线路板7形成有效的保护。
由此,通过将控制线路板7在喷枪2中靠近第一流道的水平段205设置,则清洗机在工作过程中,控制线路板7产生的热量能递给水平段205中流动的清洗液并被带走。从而借助喷枪2自带的水平段205中流动的清洗液作为冷却介质,来实现对控制线路板7的散热和冷却。如此,无需增设其他冷却设备例如风扇来对控制线路板7进行散热处理。因此,充分利用清洗机自身结构来实现控制线路板7的散热,而不增加清洗机的结构复杂度。
需要说明的是,在本发明的描述中,术语“第一”、“第二”等仅用于描述目的和区别类似的对象,两者之间并不存在先后顺序,也不能理解为指示或暗示相对重要性。此外,在本发明的描述中,除非另有说明,“多个”的含义是两个或两个以上。
以上所述仅为本发明的几个实施例,本领域的技术人员依据申请文件公开的内容,可以对本发明实施例进行各种改动或变型而不脱离本发明的精神和范围。

Claims (19)

  1. 一种清洗机,其特征在于,包括:
    主机,包括电机及被所述电机旋转驱动的泵体;
    喷枪,包括用于供清洗液流通的第一流道;
    连接所述主机与所述喷枪的连接件,所述连接件设有第二流道;所述泵体的出口端通过所述第二流道与所述第一流道连通;
    所述喷枪上设有与所述电机电连接并控制所述电机启闭的微动开关、用于安装电池包的电池包结合部、与所述电池包结合部电连接的控制线路板;
    所述连接件还包括传输线,所述控制线路板通过所述传输线与所述电机电连接,以控制所述电机;所述传输线的数量最多不超过6根。
  2. 如权利要求1所述的清洗机,其特征在于,所述微动开关被触发时产生启闭信号;所述传输线至少用于传输启闭信号,以控制所述电机启停。
  3. 如权利要求2所述的清洗机,其特征在于,所述清洗机还包括设在所述喷枪上并与所述控制线路板电连接的调速元件;所述控制线路板在所述调速元件被触发时产生并发出调速信号;所述传输线还用于传输所述调速信号,以控制所述电机调速。
  4. 如权利要求2或3所述的清洗机,其特征在于,所述微动开关与所述控制线路板电连接,所述启闭信号在所述微动开关被触发时由所述控制线路板产生并发出。
  5. 如权利要求2或3所述的清洗机,其特征在于,所述微动开关设在所述传输线上,所述启闭信号由所述微动开关被触发时产生并发出。
  6. 如权利要求2或3任意一项所述的清洗机,其特征在于,
    所述电机为三相直流无刷电机,所述传输线为3根,分别对应连接所述三相直流无刷电机的三相;或者,
    所述电机为二相直流无刷电机,所述传输线为2根,分别对应连接所述二相直流无刷电机的二相;或者,
    所述电机为单向直流有刷电机,所述传输线为2根,分别对应连接所述单向直流有 刷电机的正负极。
  7. 如权利要求3所述的清洗机,其特征在于,所述传输线包括第一传输线和第二传输线,所述第一传输线用于传输所述调速信号;所述微动开关设在所述第二传输线上,所述启闭信号由所述微动开关被触发时产生并发出,所述第二传输线用于传输所述启闭信号。
  8. 如权利要求7所述的清洗机,其特征在于,
    所述电机为三相直流无刷电机,所述第一传输线和第二传输线均为3根,3根所述第一传输线分别对应连接所述三相直流无刷电机的三相,3根所述第二传输线也分别对应连接所述三相直流无刷电机的三相;或者,
    所述电机为二相直流无刷电机,所述第一传输线和第二传输线均为2根,2根所述第一传输线分别对应连接所述二相直流无刷电机的二相,2根所述第二传输线也分别对应连接所述二相直流无刷电机的二相;或者,
    所述电机为单向直流有刷电机,所述第一传输线为2根,所述第二传输线为1根或2根,2根所述第一传输线分别对应连接所述单向直流有刷电机的正负极,1根或2根所述第二传输线连接所述单向直流有刷电机的正极和/或负极。
  9. 如权利要求3所述的清洗机,其特征在于,所述调速元件至少通过3根线路与控制线路板实现电连接,所述至少3根线路包括1根正极电源线、1根负极电源线和1根调速信号线。
  10. 如权利要求1所述的清洗机,其特征在于,所述喷枪上还设有用于指示所述电池包剩余电量的电量显示元件,所述电量显示元件至少通过3根线路与所述控制线路板电连接,所述至少3根线路包括1根正极电源线、1根负极电源线和1根电量信号线。
  11. 如权利要求1所述的清洗机,其特征在于,当所述电池包结合部被配置为用于安装单电池包时,所述电池包结合部通过3根线路与所述控制线路板电连接,所述3根线路包括1根正极电源线、1根负极电源线和1根温度信号线。
  12. 如权利要求1所述的清洗机,其特征在于,当所述电池包结合部被配置为用于安装双电池包时,所述电池包结合部通过5根线路与控制线路板实现电连接,所述5根线路包括1根正极电源线、1根负极电源线、1根中间相位线和2根温度信号线。
  13. 如权利要求1所述的清洗机,其特征在于,所述喷枪包括将所述第一流道收纳至其内的喷枪壳体,所述喷枪壳体包括水平机壳、位于所述水平机壳后端并向下延伸的手柄机壳、与所述水平机壳连接并向下延伸的过渡机壳,所述的过渡机壳位于所述手柄机壳的前方;
    所述第一流道至少具有进液口,所述进液口位于所述手柄机壳中,所述电池包结合部设在所述过渡机壳上。
  14. 如权利要求13所述的清洗机,其特征在于,所述第一流道包括位于所述水平机壳中的水平段、与所述水平段连接并位于所述手柄机壳中的倾斜段;所述倾斜段背离所述水平段的端部开口形成所述进液口,所述水平段背离所述倾斜段的端部开口形成出液口。
  15. 如权利要求14所述的清洗机,其特征在于,所述控制线路板设在所述水平机壳中并靠近所述电池包结合部;所述微动开关设在所述水平机壳中并靠近所述控制线路板。
  16. 如权利要求14所述的清洗机,其特征在于,所述控制线路板位于所述水平段的一侧,所述控制线路板上设有电子元器件,所述电子元器件至少包括多个MOS管,多个所述MOS管设在所述控制线路板面对所述水平段的表面,且多个所述MOS管沿所述水平段的长度方向排布。
  17. 如权利要求16所述的清洗机,其特征在于,所述水平段包括冷却段,所述冷却段的部分侧壁为直壁,所述控制线路板设在所述直壁上,且所述控制线路板与所述直壁之间设有传热件。
  18. 如权利要求17所述的清洗机,其特征在于,所述控制线路板设在分装盒内, 所述冷却段与所述分装盒连接,所述分装盒固定在所述水平机壳内;所述分装盒包括与所述冷却段的直壁连接的底壁,所述直壁与所述底壁部分重合,所述控制线路板固定在所述底壁上。
  19. 如权利要求18所述的清洗机,其特征在于,所述分装盒还包括形成在所述底壁边缘的凸起,所述凸起与所述底壁限定出将所述控制线路板收容在其内的容置凹槽。
PCT/CN2020/133908 2019-12-06 2020-12-04 清洗机 WO2021110140A1 (zh)

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