Filter assembly and dish-washing machine

Abstract

The utility model belongs to the technical field of dish-washing machines, and particularly discloses a filtering assembly and a dish-washing machine. The filter assembly comprises a water cup, a filter and a filter in-place detection assembly. The filter can be mounted on the water cup; the filter in-place detection assembly comprises an optical signal transmitting and receiving device and a reflecting piece, the optical signal transmitting and receiving device is arranged on the water cup in a pluggable and penetrating mode from the outer side of the water cup, the reflecting piece is fixedly arranged on the filter, and when the filter is installed in place on the water cup, the optical signal transmitting and receiving device and the reflecting piece are oppositely arranged; and the reflecting piece can reflect the optical signal transmitted by the optical signal transmitting and receiving device to the optical signal transmitting and receiving device. According to the utility model, the optical signal transmitting and receiving device can be inserted into the water cup in a pluggable manner, the reflecting piece is fixedly arranged on the filter, and the reflecting piece and the filter do not move all the time, so that the filter in-place detection assembly can work stably all the time, and the product stability and the user experience are ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of dishwashers, in particular to a filter component and a dishwasher. Background Art

[0002] A dishwasher is a device that automatically washes bowls, chopsticks, plates, dishes, knives, forks and other tableware.

[0003] A dishwasher generally includes an inner tank and a base disposed under the inner tank. The inner tank generally has a washing cavity for loading and washing tableware; the base generally has functional components for users to complete various functions of the dishwasher, such as a water cup. The water cup is used to collect the washing water in the washing cavity for recycling. In order to filter food residues in the circulating washing water flow, a filter is usually provided on the water cup. The filter needs to be installed in place in the water cup to ensure the cleaning effect of the subsequent washing of the tableware.

[0004] In order to determine whether the filter is installed in place, some existing dishwashers have a first trigger member movably arranged on the inner tank, and a micro switch for detecting whether the filter is installed in place is also arranged on the inner tank. The first trigger member includes a push rod that can be pushed. During the installation process, the filter will press the push rod and make the push rod pass through the water cup to trigger the micro switch. When the micro switch is closed, it means that the filter is installed in place.

[0005] When cleaning the filter, the filter needs to be removed. In order to reset the push rod after the filter is removed and to enable the push rod to continue to move when the filter is installed again, the dishwasher is also provided with an elastic member to help the push rod reset. However, fatigue cracks may occur in the elastic member during long-term repeated loading and unloading, which may eventually lead to the elastic member breaking and failure; when the elastic member fails, the user cannot accurately determine whether the filter is installed in place when reinstalling the filter, which affects the stability of the product. Utility Model Content

[0006] One of the technical problems solved by the utility model is to provide a filter assembly, which can effectively solve the technical problem in the prior art that the elastic part of the filter push rod is easy to break and fail, affecting the product stability of the dishwasher.

[0007] The second technical problem solved by the utility model is to provide a dishwasher, which can effectively solve the technical problem in the prior art that the elastic part of the push rod of the filter is easy to break and fail, affecting the product stability of the dishwasher.

[0008] The first technical problem mentioned above is solved by the following technical solution:

[0009] Filter components, including:

[0010] Water cup;

[0011] A filter, which can be mounted on the water cup;

[0012] The filter in place detection component includes an optical signal transmitter and receiver and a reflector. The optical signal transmitter and receiver can be plugged in and out of the water cup from the outside of the water cup, and the reflector is fixed to the filter. When the filter is installed in place on the water cup, the optical signal transmitter and receiver are arranged opposite to the reflector, and the reflector can reflect the optical signal emitted by the optical signal transmitter and receiver to the optical signal transmitter and receiver.

[0013] Compared with the background technology, the filter assembly of the utility model has the following beneficial effects:

[0014] Generally, the signal transmitter and receiver are always in a state of passing through the water cup.

[0015] After the filter assembly is assembled, the filter is installed in place on the water cup, the optical signal transmitter and receiver are arranged relative to the reflector, and after the optical signal transmitted by the optical signal transmitter and receiver is transmitted to the reflector, the reflector reflects the optical signal transmitted by the optical signal transmitter and receiver to the optical signal transmitter and receiver. That is, when the optical signal transmitter and receiver receive the optical signal reflected by the reflector, it means that the filter is installed in place on the water cup, otherwise it means that the filter is not installed in place.

[0016] At the same time, since the optical signal transmitter and receiver are pluggable and installed in the water cup, and the reflector is fixed to the filter, the two will never move, which can ensure that the filter in place detection component always works stably, thereby ensuring product stability and user experience.

[0017] When the optical signal transmitter and receiver need to be repaired, since the optical signal transmitter and receiver are pluggable and inserted into the water cup from the outside of the water cup, the optical signal transmitter and receiver can be directly unplugged from the outside of the water cup to repair the optical signal transmitter and receiver, which facilitates subsequent maintenance operations.

[0018] In one embodiment, the optical signal transmitter and receiver comprises:

[0019] A housing is inserted into the water cup and can be inserted from the outside of the water cup. A mounting cavity is provided in the housing;

[0020] An optical signal transmitting module is disposed in the installation cavity, and the optical signal emitted by the optical signal transmitting module can be transmitted to the reflecting member;

[0021] The optical signal receiving module is arranged in the installation cavity, and the reflecting member can reflect the optical signal emitted by the optical signal emitting module to the optical signal receiving module.

[0022] In one of the embodiments, the water cup is provided with a shell mounting hole, the shell can be inserted and inserted into the shell mounting hole, a sealing member is sleeved on the outer periphery of the shell, and the sealing member is in sealing contact with the inner wall of the shell mounting hole.

[0023] In one embodiment, the housing comprises:

[0024] A mounting plate, detachably mounted on the water cup;

[0025] A perforated column, fixedly mounted on the mounting plate and passing through the water cup, wherein the mounting cavity is disposed on the perforated column;

[0026] A sealing member is sleeved on the outer circumference of the perforated column.

[0027] In one of the embodiments, a buckle is provided on the filter, the reflector is provided on the buckle, and the inner wall of the water cup is provided with a slot that cooperates with the buckle. After the filter is installed in place in the water cup, the buckle is engaged with the slot.

[0028] In one of the embodiments, a pressure plate is provided on the inner wall of the water cup above the card slot, and the buckle can be rotatably installed below the pressure plate until the buckle is engaged with the card slot.

[0029] In one of the embodiments, a reflector mounting hole is provided on the buckle, and the reflector is embedded in the reflector mounting hole.

[0030] The above second technical problem is solved by the following technical solution:

[0031] A dishwasher comprises the above-mentioned filter assembly.

[0032] Compared with the background technology, the dishwasher of the utility model has the following beneficial effects:

[0033] After the filter assembly of the dishwasher is assembled, the filter is installed in place on the water cup, the optical signal transmitter and receiver are arranged opposite to the reflector, and after the optical signal transmitted by the optical signal transmitter and receiver is transmitted to the reflector, the reflector reflects the optical signal transmitted by the optical signal transmitter and receiver to the optical signal transmitter and receiver. That is, when the optical signal transmitter and receiver receive the optical signal reflected by the reflector, it means that the filter is installed in place on the water cup, otherwise it means that the filter is not installed in place.

[0034] At the same time, since the optical signal transmitter and receiver are pluggable and installed in the water cup, and the reflector is fixed to the filter, the two will never move, which can ensure that the filter in place detection component always works stably, thereby ensuring product stability and user experience.

[0035] When the optical signal transmitter and receiver need to be repaired, since the optical signal transmitter and receiver are pluggable and inserted into the water cup from the outside of the water cup, the optical signal transmitter and receiver can be directly unplugged from the outside of the water cup to repair the optical signal transmitter and receiver, which facilitates subsequent maintenance operations. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] Figure 1 A schematic diagram of the structure of the filter assembly provided in the first embodiment of the utility model;

[0037] Figure 2 for Figure 1 The enlarged view of point A in the middle;

[0038] Figure 3 A schematic cross-sectional structure diagram of a filter assembly provided in Embodiment 1 of the present utility model;

[0039] Figure 4 for Figure 3 The enlarged view of point B in the middle;

[0040] Figure 5 This is a schematic diagram of the filter in-place detection assembly provided in the first embodiment of the utility model when it is not installed in place on the water cup;

[0041] Figure 6 for Figure 5 Enlarged view of point C in the middle;

[0042] Figure 7 A schematic diagram of the structure of a water cup provided in Embodiment 1 of the utility model;

[0043] Figure 8 for Figure 7 The enlarged view of point D in the middle;

[0044] Fig. 9 A top view of a water cup provided in Embodiment 1 of the utility model;

[0045] Fig.10 A schematic diagram of the structure of an optical signal transmitter and receiver provided in Embodiment 1 of the present utility model;

[0046] Fig.11 A schematic cross-sectional structure diagram of an optical signal transmitter and receiver provided in Embodiment 1 of the present utility model;

[0047] Fig.12 A schematic diagram of the structure of a filter provided in an embodiment of the utility model;

[0048] Fig.13 for Fig.12 Enlarged view of point E in the middle;

[0049] Fig.14 A schematic diagram of the structure of a reflector provided in an embodiment of the utility model;

[0050] Fig.15 A circuit schematic diagram of an optical signal transmitter and receiver provided in an embodiment of the utility model.

[0051] Description of labels:

[0052] 1. Water cup; 11. Housing mounting hole; 12. Card slot; 13. Press plate;

[0053] 2. filter; 21. buckle; 211. reflector mounting hole;

[0054] 3. Filter in place detection assembly; 31. Optical signal transmitter and receiver; 311. Housing; 3111. Mounting cavity; 3112. Seal; 3113. Mounting plate; 3114. Perforated column; 31141. Large diameter section; 31142. Small diameter section; 312. Optical signal transmitter module; 313. Optical signal receiver module; 32. Reflector;

[0055] 4. Threaded connectors. DETAILED DESCRIPTION

[0056] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0057] In the description of the present application, it should be understood that the terms "upper", "lower", "left", "right", "vertical", "bottom", "inside", "outside", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0058] The terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, unless otherwise specified, "plurality" means two or more.

[0059] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0060] Embodiment 1

[0061] See also Figure 1-Figure 4 , this embodiment provides a filter assembly, which is applied to a dishwasher.

[0062] Specifically, the filter assembly includes a water cup 1 , a filter 2 and a filter in place detection assembly 3 .

[0063] The filter 2 can be mounted on the water cup 1 .

[0064] The filter in-place detection component 3 includes an optical signal transmitter and receiver 31 and a reflector 32. The optical signal transmitter and receiver 31 can be plugged in and out of the water cup 1 from the outside of the water cup 1, and the reflector 32 is fixed to the filter 2. When the filter 2 is installed in place on the water cup 1, the optical signal transmitter and receiver 31 and the reflector 32 are arranged opposite to each other, and the reflector 32 can reflect the optical signal emitted by the optical signal transmitter and receiver 31 to the optical signal transmitter and receiver 31.

[0065] The water cup 1 is used to collect the washing water in the washing chamber of the dishwasher so as to recycle the washing water. The filter 2 is used to filter the food residues in the circulating washing water flow.

[0066] It can be understood that when the optical signal transmitter and receiver 31 is inserted from the outside of the water cup 1 and penetrated onto the water cup 1, the optical signal transmitter and receiver 31 is installed in place on the water cup 1. When the optical signal transmitter and receiver 31 needs to be removed, the optical signal transmitter and receiver 31 can be pulled out from the outside of the water cup 1.

[0067] Generally, the optical signal transmitter and receiver 31 is located at a position passing through the water cup 1.

[0068] After the filter assembly provided in this embodiment is assembled in place, the filter 2 is installed in place on the water cup 1, the optical signal transmitter and receiver 31 and the reflector 32 are arranged opposite to each other, and after the optical signal emitted by the optical signal transmitter and receiver 31 is emitted to the reflector 32, the reflector 32 reflects the optical signal emitted by the optical signal transmitter and receiver 31 to the optical signal transmitter and receiver 31. That is, when the optical signal transmitter and receiver 31 receives the optical signal reflected by the reflector 32, it means that the filter 2 is installed in place on the water cup 1; if the optical signal transmitter and receiver 31 does not receive the optical signal reflected by the reflector 32, it means that the filter 2 is not installed in place.

[0069] At the same time, since the optical signal transmitter and receiver 31 can be plugged in and out of the water cup 1, and the reflector 32 is fixed to the filter 2, the two will never move, and there is no need to set a push rod and elastic part that need to reciprocate in the prior art. It can ensure that the filter in place detection component 3 always works stably, thereby ensuring product stability and user experience.

[0070] When the dishwasher breaks down and needs to repair the optical signal transmitter and receiver 31, since the optical signal transmitter and receiver 31 can be plugged in and out of the water cup 1 from the outside of the water cup 1, the optical signal transmitter and receiver 31 can be pulled out from the outer wall of the water cup 1, which is convenient for repair.

[0071] In one embodiment, see Figure 5 , Figure 6 , Fig.10 and Fig.11 The optical signal transmitter and receiver 31 includes a housing 311 , an optical signal transmitter module 312 and an optical signal receiver module 313 .

[0072] The outer shell 311 can be inserted into the water cup 1 from the outer side of the water cup 1 , and a mounting cavity 3111 is provided in the outer shell 311 .

[0073] The optical signal transmitting module 312 is disposed in the installation cavity 3111 , and the optical signal emitted by the optical signal transmitting module 312 can be transmitted to the reflector 32 .

[0074] The optical signal receiving module 313 is disposed in the installation cavity 3111 , and the reflector 32 can reflect the optical signal emitted by the optical signal emitting module 312 to the optical signal receiving module 313 .

[0075] The housing 311 can protect the optical signal transmitting module 312 and the optical signal receiving module 313 to prevent the optical signal transmitting module 312 and the optical signal receiving module 313 from being easily ineffective after being directly in contact with water.

[0076] Optionally, the installation cavity 3111 is divided into two independent spaces by a partition, and the optical signal transmitting module 312 and the optical signal receiving module 313 are respectively located in the two spaces.

[0077] Specifically, the end of the housing 311 facing the reflector 32 is made of transparent material to ensure that the optical signal can pass through.

[0078] Further optionally, the optical signal transmitting module 312 is an LED transmitting lamp, and the optical signal receiving module 313 is a light sensor. Of course, in other embodiments, the optical signal transmitting module 312 can also be other, such as a laser transmitter, as long as it can transmit optical signals, and there is no excessive restriction here; the optical signal receiving module 313 can also be other, such as a laser receiver, as long as it can receive optical signals, and there is no excessive restriction here.

[0079] In one embodiment, see Figure 5-Figure 8 The water cup 1 is provided with a housing mounting hole 11, and the housing 311 is inserted and removed through the housing mounting hole 11. The outer periphery of the housing 311 is provided with a sealing member 3112, and the sealing member 3112 is in sealing contact with the inner wall of the housing mounting hole 11. Such a configuration can prevent water leakage from occurring at the housing mounting hole 11.

[0080] At the same time, in this embodiment, since the optical signal transmitter and receiver 31 is always fixed relative to the water cup 1, the seal 3112 can also always remain motionless, so that there will be no friction with other components, thereby avoiding the seal failure caused by wear of the seal 3112.

[0081] It can be understood that, during the process of pulling out the outer shell 311 , the sealing member 3112 is always tightly fitted on the outer circumference of the outer shell 311 .

[0082] Of course, in other embodiments, the housing 311 can be made of elastic material, such as rubber or silicone, and when the housing 311 passes through the housing mounting hole 11, the outer wall of the housing 311 directly abuts against the inner wall of the housing mounting hole 11 to prevent water leakage at the housing mounting hole 11. This arrangement can reduce the number of parts.

[0083] Further, see Figure 6 and Fig.10 In one embodiment, the housing 311 includes a mounting plate 3113 , a perforated column 3114 , and a seal 3112 .

[0084] The mounting plate 3113 can be detachably mounted on the water cup 1. Specifically, a plurality of mounting holes are provided on the mounting plate 3113 to enable the mounting plate 3113 to be mounted on the water cup 1.

[0085] The perforated column 3114 is fixed on the mounting plate 3113 and passes through the water cup 1 . The mounting cavity 3111 is disposed on the perforated column 3114 .

[0086] Specifically, the perforated column 3114 can be inserted and removed and penetrated into the housing mounting hole 11. The sealing member 3112 is sleeved on the outer periphery of the perforated column 3114. In this way, the sealing member 3112 is in sealing contact with the inner wall of the housing mounting hole 11.

[0087] Specifically, after the perforated column 3114 passes through the housing mounting hole 11 , the threaded connector 4 passes through the mounting hole of the mounting plate 3113 and is threadedly connected to the water cup 1 , thereby achieving the installation of the housing 311 .

[0088] Optionally, a plurality of threaded connectors 4 are provided; accordingly, a plurality of mounting holes are provided on the mounting plate 3113. Optionally, in this embodiment, the number of the mounting holes is two.

[0089] When the optical signal transmitter and receiver 31 needs to be pulled out for maintenance, the threaded connector 4 at the mounting hole of the mounting plate 3113 is first removed, and then force is applied to the mounting plate 3113 to pull out the optical signal transmitter and receiver 31.

[0090] When the optical signal transmitter and receiver 31 is reinstalled, the mounting plate 3113 abuts against the outer wall of the water cup 1 , indicating that the optical signal transmitter and receiver 31 is installed in place.

[0091] Furthermore, in this embodiment, the perforated column 3114 includes a large diameter section 31141 and a small diameter section 31142 that are coaxially fixed, one end of the large diameter section 31141 is fixedly connected to the mounting plate 3113, and the small diameter section 31142 is fixedly arranged at the other end of the large diameter section 31141. The sealing member 3112 is sleeved on the small diameter section 31142 and is in sealing contact with the inner wall of the housing mounting hole 11. At the same time, the sealing member 3112 is in contact with the end surface of the large diameter section 31141. Such an arrangement can ensure that the perforated column 3114 can smoothly carry the sealing member 3112 into the housing mounting hole 11, and the sealing member 3112 will not shift during operation, thereby ensuring the sealing performance of the water cup 1.

[0092] Optionally, the sealing member 3112 is a sealing ring made of rubber or silicone.

[0093] The installation cavity 3111 is arranged to penetrate the large diameter section 31141 and the small diameter section 31142 , and the end surface material of the small diameter section 31142 away from the large diameter section 31141 is a transparent material, such as glass.

[0094] Further, in one embodiment, in order to ensure the installation stability of the filter 2 on the water cup 1, see Figure 4 , Fig.12 and Fig.13 The filter 2 is provided with a buckle 21, the reflector 32 is provided on the buckle 21, and the inner wall of the water cup 1 is provided with a slot 12 that cooperates with the buckle 21. After the filter 2 is installed in place in the water cup 1, the buckle 21 is engaged with the slot 12.

[0095] With such arrangement, when the filter 2 is installed in place, the buckle 21 is engaged in the card slot 12, and at the same time, the reflector 32 is also arranged opposite to the optical signal transmitter and receiver 31 fixedly arranged on the water cup 1, and the reflector 32 reflects the optical signal emitted by the optical signal transmitter and receiver 31 to the optical signal transmitter and receiver 31, which fully indicates that the filter 2 is installed in place.

[0096] In order to further ensure the installation stability of the filter 2 on the water cup 1 and prevent the filter 2 from being separated from the water cup 1 during operation, see Figure 4 and Fig. 9 A pressing plate 13 is provided on the inner wall of the water cup 1 above the card slot 12 , and the buckle 21 can be rotatably installed below the pressing plate 13 until the buckle 21 is engaged with the card slot 12 .

[0097] Specifically, a plurality of buckles 21 are arranged at intervals on the outer circumference of the filter 2 , and the buckles 21 extend outward relative to the outer side wall of the filter 2 .

[0098] A filter installation cavity for installing the filter 2 is provided in the water cup 1. Several pressing plates 13 are provided at intervals on the inner wall of the filter installation cavity in the water cup 1, and the buckles 21 are provided one by one with the pressing plates 13. The inner edge of the pressing plate 13 is in an arc shape and the diameter of the inner edge of the pressing plate 13 is the same as the outer diameter of the filter 2. A protrusion is provided on the lower surface of one end of each pressing plate 13, and a slot 12 is provided on the side of the protrusion so that the buckle 21 can be rotatably engaged with the slot 12. The buckle 21 is provided one by one with the pressing plate 13.

[0099] When installing the filter 2, first place the buckle 21 and the pressure plate 13 one by one, and place the filter 2 vertically into the filter installation cavity. When the upper surface of the buckle 21 is roughly flush with the lower surface of the pressure plate 13, rotate the filter 2 and make the buckle 21 snap into the corresponding slot 12. At this point, the filter 2 is installed in place.

[0100] Optionally, in this embodiment, the number of the buckles 21 is two.

[0101] See also Fig.13 and Fig.14 In one embodiment, a reflector mounting hole 211 is provided on the buckle 21 , and the reflector 32 is embedded in the reflector mounting hole 211 .

[0102] Specifically, one reflector 32 is provided, and one filter in place detection assembly 3 is also provided correspondingly. The reflector 32 is provided on a certain buckle 21, and the filter in place detection assembly 3 is installed at the card slot 12 of the water cup 1 that is engaged with the buckle 21.

[0103] Optionally, the reflective element 32 is a reflective mirror.

[0104] Optionally, in this embodiment, the optical signal transmitting module 312 and the optical signal receiving module 313 are staggered up and down, and the reflector 32 is a concave mirror, which is arranged opposite to the optical signal transmitting and receiving module 31. Of course, in other embodiments, the optical signal transmitting module 312 and the optical signal receiving module 313 are staggered up and down or left and right, and the reflector 32 can also be a plane mirror tilted relative to the vertical plane, as long as it is ensured that the reflector 32 can reflect the optical signal emitted by the optical signal transmitting module 312 to the optical signal receiving module 313.

[0105] Specifically, a controller is integrated in the dishwasher, and the controller is in communication connection with the light signal transmitter and receiver 31. The controller can control the light signal transmitter and receiver 31 to emit light, and can determine whether the filter 2 is installed in place.

[0106] See also Fig.15 , Fig.15 It is a circuit schematic diagram of the optical signal transmitter and receiver 31; in this embodiment, the controller sends a high level through the TX pin, the first light sensor Q1 will be turned on, the transmitting light LED1 will light up, and the second light sensor Q2 will be turned on after receiving the light, thereby pulling down the level of the base of the third light sensor Q3, so that the third light sensor Q3 is turned on, and after the third light sensor Q3 is turned on, a high level is generated at the base of the fourth light sensor Q4, so that the fourth light sensor Q4 is turned on, and then the RX pin is changed from a low level to a high level. The controller determines whether LED1 is lit through the high level or low level of the RX pin, thereby determining whether the filter 2 is assembled in place.

[0107] That is, the controller controls the optical signal transmitter and receiver 31 to emit light, and the optical signal transmitter module 312 sends out an optical signal. When the optical signal receiver module 313 receives the optical signal, the controller determines that the filter 2 is assembled in place.

[0108] Embodiment 2

[0109] This embodiment provides a dishwasher, which includes the filter assembly of the first embodiment.

[0110] After the filter assembly of the dishwasher is assembled in place, the filter 2 is installed in place on the water cup 1, the optical signal transmitter and receiver 31 and the reflector 32 are arranged opposite to each other, and after the optical signal emitted by the optical signal transmitter and receiver 31 is emitted to the reflector 32, the reflector 32 reflects the optical signal emitted by the optical signal transmitter and receiver 31 to the optical signal transmitter and receiver 31. That is, when the optical signal transmitter and receiver 31 receives the optical signal reflected by the reflector 32, it means that the filter 2 is installed in place on the water cup 1, otherwise it means that the filter 2 is not installed in place.

[0111] At the same time, since the optical signal transmitter and receiver 31 can be plugged in and out of the water cup 1, and the reflector 32 is fixed to the filter 2, the two will never move, which can ensure that the filter in place detection component 3 always works stably, thereby ensuring product stability and user experience.

[0112] When the dishwasher breaks down and needs to repair the optical signal transmitter and receiver 31, since the optical signal transmitter and receiver 31 can be plugged in and out of the water cup 1 from the outside of the water cup 1, the optical signal transmitter and receiver 31 can be pulled out from the outer wall of the water cup 1, which is convenient for repair.

[0113] Embodiment 3

[0114] This embodiment provides a dishwasher control method, which can control the dishwasher of the second embodiment to remind the user whether the filter 2 needs to be cleaned.

[0115] The dishwasher control method comprises the following steps:

[0116] S1, determining whether the washing program of the dishwasher is started, if yes, executing step S2; if not, executing the first preset logic to determine whether the accumulated number of washing completions of the dishwasher needs to be reset;

[0117] S2, determining whether the cumulative number of washing completions of the dishwasher is greater than or equal to a preset number;

[0118] If yes, the dishwasher does not perform the washing program and issues a filter cleaning reminder;

[0119] If not, the second preset logic is executed to determine whether the accumulated number of washing completions of the dishwasher needs to be incremented by one.

[0120] The dishwasher control method provided in this embodiment can regularly remind the user to clean the filter 2, thereby ensuring the cleaning effect of the dishwasher.

[0121] When the washing program of the dishwasher is started, if the cumulative number of washings completed by the dishwasher is greater than or equal to the preset number, the dishwasher is controlled not to execute the washing program, and a filter cleaning prompt is issued. At this time, the user knows that the filter 2 needs to be cleaned, and the filter 2 is removed from the water cup 1 and the filter 2 is cleaned. When the washing program of the dishwasher is started, if the cumulative number of washings completed by the dishwasher is less than the preset number, the second preset logic is executed to determine whether the cumulative number of washings completed by the dishwasher needs to be incremented by one.

[0122] It should be noted that when the cumulative number of times the dishwasher has completed washing is equal to the preset number, the dishwasher will issue a filter cleaning reminder. If the user does not clean the filter at this time, the dishwasher can continue to be used; when the dishwasher continues to be used, the cumulative number of times the dishwasher has completed washing is greater than the preset number. This setting can improve the humanization of the dishwasher, and the dishwasher can continue to be used even if the user does not want to clean the filter.

[0123] When the washing program of the dishwasher is not started, the first preset logic is executed to determine whether the accumulated number of washing completions of the dishwasher needs to be reset.

[0124] Specifically, the first preset logic includes the following steps:

[0125] S31, determining whether the dishwasher is in an open door state;

[0126] If yes, then execute step S32; if no, then control the light signal to be transmitted and the receiver 31 not to transmit the light signal;

[0127] S32, controlling the optical signal transmitter and the receiver 31 to transmit an optical signal, and monitoring whether the optical signal transmitter and the receiver 31 have interrupted the reception of the reflected signal of the reflector 32;

[0128] If so, the cumulative number of completed washings is reset to zero;

[0129] If not, return to step S31.

[0130] In step S31, if the dishwasher is in an open state, the user may want to remove the filter 2 and clean the filter 2. If the dishwasher is not in an open state, it means that the dishwasher is in a standby state. At this time, the light signal transmitter and receiver 31 are controlled not to transmit light signals to reduce the standby power of the dishwasher.

[0131] When the dishwasher is in the door-opening state, step S32 is executed; in step S32, the light signal emission and the receiver 31 are controlled to emit light signals; if the monitoring light signal emission and the receiver 31 are interrupted in receiving the reflection signal of the reflector 32, it means that the filter 2 has been disassembled and the user has completed the cleaning of the filter 2. At this time, the cumulative number of washing completions is controlled to be reset. If the monitoring light signal emission and the receiver 31 are not interrupted in receiving the reflection signal of the reflector 32, it is returned to step S31.

[0132] In one embodiment, the second preset logic includes the following steps:

[0133] S21, determining whether the dishwasher door is open during the cleaning process;

[0134] If yes, execute the first preset logic;

[0135] If not, execute step S22;

[0136] S22, determining whether the dishwasher has completely completed a washing process;

[0137] If yes, the cumulative number of completed washings of the dishwasher is controlled to increase by one;

[0138] If not, the cumulative number of washing completions of the dishwasher is controlled to remain unchanged.

[0139] In step S21, if the dishwasher has its door open during the washing process, a first preset logic is executed to determine whether the accumulated number of washing completions of the dishwasher needs to be reset.

[0140] In step S22, if the dishwasher has not completed a washing program completely, the cumulative number of completed washings of the dishwasher is controlled to remain unchanged, so as to avoid errors in the cumulative number of completed washings of the dishwasher.

[0141] In the specific contents of the above-mentioned specific implementation methods, the various technical features can be combined in any non-contradictory manner. In order to make the description concise, not all possible combinations of the above-mentioned technical features are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0142] The specific contents of the above specific implementations only express several implementations of the utility model, and the descriptions are relatively specific and detailed, but they cannot be understood as limiting the scope of the patent of the utility model. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.

Claims

1. A filter assembly, characterized in that: include: Water cup (1); A filter (2) capable of being mounted on the water cup (1); A filter in-place detection component (3) comprises an optical signal transmitter and receiver (31) and a reflector (32); the optical signal transmitter and receiver (31) is pluggable and inserted into the water cup (1) from the outside of the water cup (1); the reflector (32) is fixed to the filter (2); when the filter (2) is installed in place on the water cup (1), the optical signal transmitter and receiver (31) and the reflector (32) are arranged opposite to each other; the reflector (32) is capable of reflecting the optical signal emitted by the optical signal transmitter and receiver (31) to the optical signal transmitter and receiver (31).

2. The filter assembly according to claim 1, characterized in that: The optical signal transmitter and receiver (31) comprises: A shell (311) is inserted into the water cup (1) and can be inserted from the outside of the water cup (1), and a mounting cavity (3111) is provided in the shell (311); An optical signal transmitting module (312) is arranged in the installation cavity (3111), and the optical signal emitted by the optical signal transmitting module (312) can be transmitted to the reflecting element (32); The optical signal receiving module (313) is arranged in the installation cavity (3111), and the reflecting element (32) is capable of reflecting the optical signal emitted by the optical signal emitting module (312) to the optical signal receiving module (313).

3. The filter assembly according to claim 2, characterized in that: The water cup (1) is provided with an outer shell mounting hole (11), the outer shell (311) can be inserted and removed through the outer shell mounting hole (11), and a sealing member (3112) is sleeved on the outer periphery of the outer shell (311), and the sealing member (3112) is in sealing contact with the inner wall of the outer shell mounting hole (11).

4. The filter assembly according to claim 2, characterized in that: The housing (311) comprises: A mounting plate (3113) which can be detachably mounted on the water cup (1); A perforated column (3114) is fixedly mounted on the mounting plate (3113) and is disposed through the water cup (1); the mounting cavity (3111) is disposed on the perforated column (3114); The sealing member (3112) is sleeved on the outer circumference of the perforated column (3114).

5. The filter assembly according to claim 1, characterized in that: The filter (2) is provided with a buckle (21), the reflector (32) is provided on the buckle (21), the inner wall of the water cup (1) is provided with a slot (12) that cooperates with the buckle (21), and after the filter (2) is installed in place in the water cup (1), the buckle (21) is engaged with the slot (12).

6. The filter assembly according to claim 5, characterized in that A pressure plate (13) is provided on the inner wall of the water cup (1) above the card slot (12), and the buckle (21) can be rotatably installed below the pressure plate (13) until the buckle (21) is engaged with the card slot (12).

7. The filter assembly according to claim 5, characterized in that: The buckle (21) is provided with a reflector mounting hole (211), and the reflector (32) is embedded in the reflector mounting hole (211).

8. A dishwasher, characterized in that The invention comprises a filter assembly as described in any one of claims 1 to 7.

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