Shunt valve structure and dish-washing machine

Abstract

The utility model discloses a shunt valve structure and dish-washing machine, wherein the shunt valve structure also includes drive motor, diversion plectrum, infrared transceiver and controller, wherein the drive motor is connected with diversion plectrum in transmission, through the action of diversion plectrum, make the water inlet be switchably communicated with each single water outlet, and the infrared transceiver is connected with the controller. The controller is electrically connected with the driving motor and the infrared transceiver; a plurality of grooves are concavely formed in the water diversion plectrum at intervals in sequence in the perimeter direction of the water diversion plectrum, the grooves and the water outlets are arranged in a one-to-one correspondence manner, and the lengths of the grooves in the perimeter direction of the water diversion plectrum are different; the infrared transceiver is arranged corresponding to the water diversion plectrum so as to detect the length of each groove and send the length of each groove to the controller, and the controller controls the rotation angle of the water diversion plectrum according to the length of each groove. The shunt valve is simple in structure, the dependence of control of the shunt valve on the precision of components can be effectively reduced, and the control precision of the shunt valve is further improved.

Description

Technical Field

[0001] This utility model relates to the field of household appliance technology, and in particular to a water distribution valve structure and a dishwasher. Background Technology

[0002] In existing technologies, most dishwashers control the water distribution valve by using a combination of a synchronous motor and a micro switch. The micro switch is used as the origin, and the synchronous motor runs for a period of time to rotate to a fixed position. However, this method is limited by the precision design of the structure and the fact that power grid fluctuations can cause the synchronous motor to rotate at different speeds, resulting in a less accurate position. Utility Model Content

[0003] This utility model aims to solve, at least to some extent, one of the problems existing in the prior art. To this end, this utility model proposes a water distribution valve structure, which is simple in structure and can effectively reduce the dependence on the precision of components in the control of the water distribution valve, thereby further improving the accuracy of the water distribution valve control.

[0004] Secondly, this utility model also proposes a dishwasher with a simple structure that can effectively improve the washing performance of the dishwasher.

[0005] The first objective mentioned above is achieved through the following technical solution:

[0006] A water distribution valve structure includes a valve body, within which a valve cavity is defined. An inlet and multiple outlets are respectively provided on the valve cavity. The structure also includes a drive motor, a water distribution lever, an infrared transceiver, and a controller. The drive motor is operatively connected to the water distribution lever, and the movement of the lever allows the inlet to switchably connect to each of the individual outlets. The controller is electrically connected to both the drive motor and the infrared transceiver. Multiple grooves are sequentially spaced along the circumference of the water distribution lever, with each groove corresponding to one of the outlets. The lengths of the grooves along the circumference of the lever are all different. The infrared transceiver is positioned corresponding to the water distribution lever to detect the length of each groove and transmit the length of each groove to the controller. The controller controls the rotation angle of the water distribution lever based on the length of each groove.

[0007] In some embodiments, a first groove, a second groove, and a third groove are sequentially recessed along the circumference of the water-dividing plate, and the lengths of the first groove, the second groove, and the third groove are all different.

[0008] In some embodiments, an inlet is provided at the inlet end of the valve cavity, and a first outlet, a second outlet, and a third outlet are respectively provided at the outlet end of the valve cavity. When the first groove is arranged corresponding to the infrared transceiver, the first outlet is connected to the inlet; when the second groove is arranged corresponding to the infrared transceiver, the second outlet is connected to the inlet; or when the third groove is arranged corresponding to the infrared transceiver, the third outlet is connected to the inlet.

[0009] In some embodiments, the infrared transceiver has an infrared transmitting module and an infrared receiving module, with the infrared transmitting module and the infrared receiving module being configured correspondingly.

[0010] In some embodiments, a white coating is applied to each of the grooves, and a black coating is applied to the areas of the water-dividing blades outside the grooves.

[0011] The second objective mentioned above is achieved through the following technical solution:

[0012] A dishwasher includes a dishwasher water distribution valve structure as described in any of the above embodiments.

[0013] Compared with the prior art, the present invention has at least the following beneficial effects:

[0014] 1. The water distribution valve structure of this utility model is simple in structure, which can effectively reduce the dependence on the precision of components in the control of the water distribution valve, thereby further improving the accuracy of the water distribution valve control.

[0015] 2. The dishwasher of this utility model has a simple structure and can effectively improve the washing performance of the dishwasher.

[0016] 3. The control method of the dishwasher of this utility model is simple and feasible, and can realize closed-loop control of the water distribution valve, thereby effectively improving the washing performance of the dishwasher. Attached Figure Description

[0017] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the water-dividing deflector in Embodiment 1 of this utility model;

[0019] Figure 2This is a flowchart illustrating the dishwasher control method in Embodiment 2 of this utility model. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions in the embodiments of this utility model will be clearly and completely described below in conjunction with the embodiments of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. The components of the embodiments of this utility model can be arranged and designed in various different configurations.

[0021] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of the claimed invention.

[0022] Example 1:

[0023] like Figure 1 As shown, this embodiment provides a water distribution valve structure, including a valve body, within which a valve cavity is defined. An inlet and multiple outlets are respectively provided on the valve cavity. It also includes a drive motor, a water distribution lever 1, an infrared transceiver 2, and a controller. The drive motor is connected to the water distribution lever 1 via a transmission connection. The movement of the water distribution lever 1 allows the inlet to switchably connect to each individual outlet. The controller is electrically connected to both the drive motor and the infrared transceiver 2. Multiple grooves are sequentially recessed along the circumference of the water distribution lever 1, with each groove corresponding to one of the multiple outlets. The lengths of the multiple grooves along the circumference of the water distribution lever 1 are all different. The infrared transceiver 2 is correspondingly positioned to the water distribution lever 1 to detect the length of each groove and send the length of each groove to the controller. The controller controls the rotation angle of the water distribution lever 1 based on the length of each groove.

[0024] In this embodiment, a valve cavity is defined within the valve body. An inlet is provided at the inlet end of the valve cavity, and multiple outlets are provided at the outlet end. A drive motor is connected to the water-dividing plate 1 to drive the water-dividing plate 1 to rotate. The movement of the water-dividing plate 1 allows the inlet to switchably connect to a single outlet. Multiple grooves are sequentially spaced along the circumference of the water-dividing plate 1. The positions and widths of these grooves are fixed, and their lengths are different. An infrared transceiver 2 is correspondingly positioned to the water-dividing plate 1, transmitting infrared signals to and receiving infrared signals reflected back from the water-dividing plate 1. The infrared transceiver 2 transmits a specific wavelength onto the water-dividing plate 1 and receives specific data as feedback signals for the rotation angle of the water-dividing plate 1. This allows the acquisition of the length data for each groove. Since the lengths of multiple grooves are different, it is possible to quickly determine which groove corresponds to the current groove length, and thus obtain the current rotation angle of the water-dividing plate 1. Furthermore, since multiple grooves correspond to multiple water outlets, the action of the water-dividing plate 1 allows the inlet to be switched to connect to a single water outlet. Its simple structure effectively reduces the dependence on component precision in the control of the water-dividing valve, thereby further improving the accuracy of the water-dividing valve control.

[0025] In this example, the water distribution valve structure is preferably used in dishwashers, but it is not limited to dishwashers. It can also be applied to other home appliances according to actual needs.

[0026] Furthermore, a first groove 11, a second groove 12, and a third groove 13 are sequentially recessed along the circumference of the water-dividing plate 1, and the lengths of the first groove 11, the second groove 12, and the third groove 13 are all different.

[0027] Preferably, an inlet is provided at the inlet end of the valve cavity, and a first outlet, a second outlet, and a third outlet are provided at the outlet end of the valve cavity. When the first groove 11 is correspondingly set with the infrared transceiver 2, the first outlet is connected to the inlet; when the second groove 12 is correspondingly set with the infrared transceiver 2, the second outlet is connected to the inlet; or when the third groove 13 is correspondingly set with the infrared transceiver 2, the third outlet is connected to the inlet.

[0028] Specifically, the infrared transceiver 2 has an infrared transmitting module and an infrared receiving module, with the infrared transmitting module and the infrared receiving module being set up correspondingly.

[0029] Specifically, a white coating is applied to each groove, while the water-dividing deflector 1 is coated with a black coating in the non-grooved areas.

[0030] In this embodiment, the infrared transceiver 2 has an infrared transmitting module and an infrared receiving module. The infrared transmitting module and the infrared receiving module are set up correspondingly. The infrared transmitting module can send data of a fixed wavelength. The infrared receiving module receives the infrared light signal through the reflection of the water separator 1. The corresponding groove position is identified according to the time of transmission and reception, thereby determining the position of the motor.

[0031] In this embodiment, a plurality of grooves are sequentially recessed along the circumference of the water-dividing plate 1. These grooves include a first groove 11, a second groove 12, and a third groove 13, each with a different length. Since the first groove 11, the second groove 12, and the third groove 13 are recessed into the outer peripheral wall of the water-dividing plate 1, a certain distance is formed between the bottom wall of the first groove 11, the second groove 12, and the third groove 13 and the outer peripheral wall of the water-dividing plate 1. This results in the infrared signal emitted by the infrared transmitting module being reflected from the outer peripheral wall of the water-dividing plate 1 to the infrared receiving module in a time shorter than the time taken for the infrared signal emitted by the infrared transmitting module to be reflected back to the infrared receiving module. The time it takes for the emitted infrared signal to be reflected back to the infrared receiving module after passing through any one of the multiple grooves can be used to determine which groove in the water-dividing plate 1 corresponds to the infrared transceiver 2. Then, the transmission and reception time of the infrared signal in the current groove can be counted to obtain the current groove length. Based on which groove in the multiple grooves the current groove length corresponds to, the current rotation angle of the water-dividing plate 1 can be obtained. This allows for precise control of the rotation angle of the water-dividing plate 1, thereby controlling the connection between the water outlet and the water inlet corresponding to the current groove length. In this way, the action of the water-dividing plate 1 can switch the water inlet to connect to a single water outlet.

[0032] In this embodiment, when the infrared transceiver 2 determines that the groove corresponding to the current groove length is the first groove 11, that is, when the first groove 11 is set corresponding to the infrared transceiver 2, the first water outlet is connected to the water inlet; when the infrared transceiver 2 determines that the groove corresponding to the current groove length is the second groove 12, that is, when the second groove 12 is set corresponding to the infrared transceiver 2, the second water outlet is connected to the water inlet; when the infrared transceiver 2 determines that the groove corresponding to the current groove length is the third groove 13, that is, when the third groove 13 is set corresponding to the infrared transceiver 2, the third water outlet is connected to the water inlet. Furthermore, since the first water outlet, the second water outlet, and the third water outlet are respectively provided on the water outlet end of the valve chamber, the water path of the dishwasher is divided into three paths. Therefore, by rotating the water diverter 1, the water inlet can be switched to connect to a single water outlet, that is, the dishwasher's washing pump can be controlled to draw water to different water paths, thereby achieving the effect of separate water path washing.

[0033] In this embodiment, the three grooves are positioned and lengths are set differently to distinguish three different locations, i.e., to distinguish 13 different rotation angles of the water-dividing plate 1. Since the positions and widths of the multiple grooves are fixed, the current angle position of the water-dividing plate 1 can be determined by the position of the previous groove. When the next groove appears, the water-dividing plate 1 can be rotated to the designated position. Since infrared rays are absorbed by black light, the water-dividing plate 1 is coated with a white coating at the groove positions to effectively reflect infrared light. At the same time, the water-dividing plate 1 is coated with a black coating at the non-groove positions to avoid infrared light being reflected, thereby further improving the stability of the product operation.

[0034] Example 2:

[0035] like Figure 2 As shown, this embodiment provides a control method for a dishwasher, which is applied to the water distribution valve structure described in Embodiment 1. Since the positions and widths of multiple grooves on the water distribution deflector are fixed, and the lengths of the multiple grooves are different, an infrared transceiver is correspondingly set with the water distribution deflector. The infrared transceiver emits a specific wavelength onto the water distribution deflector and then receives specific data as a feedback signal for the rotation angle of the water distribution deflector. In this way, the length data of each groove can be obtained. Since the lengths of multiple grooves are different, the duration of the single infrared signal reflected by the water distribution deflector received by the infrared transceiver in each groove can be quickly obtained. Since the duration of the single infrared signal reflected by the water distribution deflector in each groove is different, the rotation angle of the water distribution deflector corresponding to the single duration can be obtained. At the same time, since multiple grooves are correspondingly set with multiple water outlets, the water distribution deflector is rotated to a designated position. Then, the action of the water distribution deflector allows the water inlet to be switched to connect to a single water outlet. The method is simple and feasible, and can realize closed-loop control of the water distribution valve, thereby effectively improving the washing performance of the dishwasher.

[0036] The dishwasher control method in this embodiment includes the following steps:

[0037] Step S101: Start the drive motor to drive the water-dividing deflector to rotate.

[0038] Step S102: Simultaneously start the infrared transceiver to transmit infrared signals and record the duration of a single infrared signal received by the infrared transceiver from the water-dividing plate.

[0039] Step S103: Obtain the current rotation angle of the water-dividing deflector based on the duration of a single operation.

[0040] Specifically, the steps for obtaining the current rotation angle of the water-dividing deflector based on the duration of a single operation include:

[0041] The current groove length is obtained based on the duration of a single occurrence;

[0042] The rotation angle corresponding to the current groove length is obtained, thereby obtaining the current rotation angle of the water-dividing deflector.

[0043] Step S104: Continue to start the infrared transceiver until the water-dividing lever rotates to the preset angle.

[0044] Step S105: Turn off the drive motor to stop the water-dividing deflector from rotating, and simultaneously turn off the infrared transceiver.

[0045] In this embodiment, when the drive motor of the water distribution valve is working, it drives the water distribution lever to rotate synchronously. The lever is distinguished by three grooves of different lengths. Each groove is coated with a white coating, while the non-grooved areas of the water distribution lever 1 are coated with a black coating. This ensures that infrared rays are absorbed by the black coating. Therefore, the water distribution lever 1 has a white coating at the grooved positions to effectively reflect infrared light, and a black coating at the non-grooved positions to prevent infrared light reflection. Furthermore, since the positions of the three grooves are fixed, after the infrared transceiver emits an infrared signal, it remains in the groove until the infrared transceiver receives the reflected infrared signal from the water distribution lever. The system starts recording and timing until the infrared transceiver stops receiving the infrared signal reflected by the water-dividing plate. It then obtains the duration of a single infrared signal reflected by the water-dividing plate, and based on this duration, obtains the corresponding groove length. From this groove length, it obtains the corresponding rotation angle, thus determining the current rotation angle of the water-dividing plate. Then, by receiving the next infrared signal, it can be determined whether the water-dividing plate has reached the designated position, and the drive motor is stopped. This ensures the water-dividing plate accurately reaches the designated position, allowing the inlet to switchably connect to a single outlet.

[0046] In this embodiment, the dishwasher control method further includes the following steps:

[0047] Obtain the sum of the duration of each single rotation of the water-dividing lever;

[0048] Determine if the total value exceeds the preset transmission and reception time range. If it does, determine that the drive motor is malfunctioning; otherwise, shut down the drive motor and the infrared transceiver.

[0049] Furthermore, the steps taken after determining that the drive motor is malfunctioning include:

[0050] Once it is determined that the drive motor is malfunctioning, an alarm is issued.

[0051] The above descriptions are merely some embodiments of this utility model. For those skilled in the art, various modifications and improvements can be made without departing from the inventive concept of this utility model, and all such modifications and improvements fall within the protection scope of this utility model.

Claims

1. A water distribution valve structure comprising a valve body in which a valve chamber is defined, a water inlet and a plurality of water outlets being formed in the valve chamber, respectively, characterized in that, The water distribution valve structure further comprises a driving motor, a water distribution paddle (1), an infrared transceiver (2) and a controller, wherein the driving motor is in transmission connection with the water distribution paddle (1), the water inlet is switchably communicated with each of the water outlets through the action of the water distribution paddle (1), the controller is in electrical connection with the driving motor and the infrared transceiver (2); a plurality of grooves are concavely arranged on the water distribution paddle (1) along the circumferential direction of the water distribution paddle (1) in sequence and at intervals, the plurality of grooves are arranged in one-to-one correspondence with the plurality of water outlets, the lengths of the plurality of grooves in the circumferential direction of the water distribution paddle (1) are different, the infrared transceiver (2) is arranged in correspondence with the water distribution paddle (1) to detect the length of each groove and send the length of each groove to the controller, and the controller controls the rotation angle of the water distribution paddle (1) according to the length of each groove.

2. The water diversion valve structure according to claim 1, wherein The water distribution paddle (1) is concavely arranged with a first groove (11), a second groove (12) and a third groove (13) along the circumferential direction of the water distribution paddle (1) in sequence and at intervals, and the lengths of the first groove (11), the second groove (12) and the third groove (13) are different.

3. The water diversion valve structure according to claim 2, wherein The water inlet is arranged on the water inlet end of the valve cavity, the first water outlet, the second water outlet and the third water outlet are respectively arranged on the water outlet end of the valve cavity, when the first groove (11) is arranged in correspondence with the infrared transceiver (2), the first water outlet is communicated with the water inlet, when the second groove (12) is arranged in correspondence with the infrared transceiver (2), the second water outlet is communicated with the water inlet, or when the third groove (13) is arranged in correspondence with the infrared transceiver (2), the third water outlet is communicated with the water inlet.

4. The water diversion valve structure according to claim 1, wherein The infrared transceiver (2) has an infrared emission module and an infrared receiving module, and the infrared emission module is arranged in correspondence with the infrared receiving module.

5. The water diversion valve structure according to claim 1, wherein A white coating is coated on each of the grooves, and a black coating is coated on the area of the water distribution paddle (1) other than the grooves.

6. A dishwasher, characterized in that The water distribution valve structure further comprises a driving motor, a water distribution paddle (1), an infrared transceiver (2) and a controller, wherein the driving motor is in transmission connection with the water distribution paddle (1), the water inlet is switchably communicated with each of the water outlets through the action of the water distribution paddle (1), the controller is in electrical connection with the driving motor and the infrared transceiver (2); a plurality of grooves are concavely arranged on the water distribution paddle (1) along the circumferential direction of the water distribution paddle (1) in sequence and at intervals, the plurality of grooves are arranged in one-to-one correspondence with the plurality of water outlets, the lengths of the plurality of grooves in the circumferential direction of the water distribution paddle (1) are different, the infrared transceiver (2) is arranged in correspondence with the water distribution paddle (1) to detect the length of each groove and send the length of each groove to the controller, and the controller controls the rotation angle of the water distribution paddle (1) according to the length of each groove.

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