Sensing device and washing machine

Abstract

The application discloses a sensing device and a washing machine, and relates to the technical field of turbidity sensor design, wherein the sensing device comprises a base, a shell and a first protruding part; the base is provided with a turbidity sensor, a temperature sensor and a pressure sensor; the shell comprises a first shell and a second shell; the base, the turbidity sensor, the temperature sensor and the pressure sensor are arranged in the first shell; the second shell is arranged on the outer sidewall of the first shell; a plurality of first protruding parts are arranged; the plurality of first protruding parts are arranged on the outer sidewall of the second shell in sequence; a gap is arranged between two adjacent first protruding parts; and the gap is used for clamping connection with the washing machine; the application adjusts the depth of the sensing device in the washing machine drum by arranging a plurality of first protruding parts, so as to adapt to washing machines of different specifications, improve flexibility and reduce cost.

Description

Technical Field

[0001] This application relates to the field of turbidity sensor technology, and in particular to a sensing device and a washing machine. Background Technology

[0002] In existing technologies, turbidity sensors are typically installed at the bottom of the washing machine drum casing, bringing the sensor into contact with the water flow being measured. However, the distance from the bottom of the drum casing to the water flow varies for different washing machine sizes. Furthermore, the connections of existing turbidity sensors are relatively fixed and non-adjustable, resulting in poor flexibility. Therefore, for washing machines of different sizes, it is often necessary to redesign and manufacture the housing of the turbidity sensor, which increases costs. Utility Model Content

[0003] This application aims to address at least one of the technical problems existing in the prior art. To this end, this application proposes a sensing device and a washing machine that allows adjustment of the depth to which the device sensor extends into the washing machine drum during installation, so that the device sensor comes into contact with the water flow being measured, thereby improving flexibility and reducing costs.

[0004] A sensing device according to a first aspect of this application includes: a base on which a turbidity sensor, a temperature sensor, and a pressure sensor are disposed; a housing; the housing includes a first outer shell and a second outer shell, wherein the base, the turbidity sensor, the temperature sensor, and the pressure sensor are all disposed within the first outer shell, and the second outer shell is fitted onto the outer wall of the first outer shell; and a plurality of first protrusions, wherein the plurality of first protrusions are sequentially fitted onto the outer wall of the second outer shell, and a gap is provided between adjacent two first protrusions for engaging with a washing machine.

[0005] The sensing device according to the embodiments of this application has at least the following beneficial effects: by setting a substrate to support the various components of the sensing device of this application, the setting of the turbidity sensor facilitates the monitoring of the turbidity of the measured water flow, the temperature sensor is used to monitor the water temperature of the measured water flow so that the turbidity sensor can be activated again within an appropriate water temperature range to ensure the accuracy of the turbidity sensor, and the pressure sensor is used to monitor the water pressure of the measured water flow, thereby indirectly obtaining the water level height of the measured water flow at this time, so that the turbidity sensor can be activated again within an appropriate water level range to avoid insufficient water level height, causing the turbidity sensor to start monitoring before contacting the measured water flow, thereby affecting the accuracy of the turbidity sensor; the setting of the first housing allows the turbidity sensor, temperature sensor, pressure sensor and base to be located inside the first housing, thereby playing a certain protective role; the setting of the first protrusion on the second housing allows there to be a gap between two adjacent first protrusions, which facilitates engagement with the washing machine, and the setting of multiple gaps allows the washing machine to engage with different gaps to adjust the depth of the sensor of this application into the washing machine drum, thereby increasing the applicable scenarios and range, improving flexibility and reducing costs.

[0006] According to some embodiments of this application, the base is provided with a second protrusion and a third protrusion, the turbidity sensor includes an infrared receiver and an infrared emitter, the infrared emitter is disposed on one side of the second protrusion, the infrared receiver is disposed on one side of the third protrusion, the infrared receiver is used to receive the infrared light emitted by the infrared emitter, the temperature sensor is disposed on the side of the second protrusion where the infrared emitter is disposed, and the portion of the first housing fitted over the second protrusion and the third protrusion is a transparent structure.

[0007] According to some embodiments of this application, the temperature sensor is located on the side of the infrared emitter away from the base.

[0008] According to some embodiments of this application, the first housing is provided with a connection hole for fixed connection with the washing machine by a bolt structure.

[0009] According to some embodiments of this application, the pressure sensor includes a ceramic ring and a ceramic diaphragm. The first housing is provided with a first port. The ceramic ring is located on the side of the first housing near the base. The center of the ceramic ring is provided with a second port. The first port and the second port are aligned and connected. The ceramic diaphragm is sealed and covered on the side of the second port away from the first port.

[0010] According to some embodiments of this application, the sensing device of this application further includes a sealing ring, through which the ceramic ring is connected to the first housing.

[0011] According to some embodiments of this application, the sensing device of this application further includes a water quality sensor, which is disposed on the base and is used to monitor the parameters of the water flow being measured.

[0012] According to some embodiments of this application, the sensing device of this application further includes a foam sensor, which is disposed on the base and is used to monitor the foam in the water flow being measured.

[0013] According to some embodiments of this application, the sensing device of this application further includes a speed sensor, which is disposed on the base. The side of the speed sensor away from the base is used for electrical connection with the motor of the washing machine, and the speed sensor is used to monitor the speed of the washing machine motor.

[0014] The washing machine according to a second aspect embodiment of this application includes:

[0015] The sensing device according to the first aspect of this application.

[0016] The washing machine according to the embodiments of this application has at least the following beneficial effects: by setting a substrate to support the various components of the sensing device of this application, the setting of the turbidity sensor facilitates the monitoring of the turbidity of the measured water flow; the temperature sensor is used to monitor the water temperature of the measured water flow so that the turbidity sensor can be activated again within an appropriate water temperature range to ensure the accuracy of the turbidity sensor; the pressure sensor is used to monitor the water pressure of the measured water flow, thereby indirectly obtaining the water level height of the measured water flow at this time, so that the turbidity sensor can be activated again within an appropriate water level range, avoiding insufficient water level height, which would cause the turbidity sensor to start monitoring before contacting the measured water flow, thereby affecting the turbidity. The accuracy of the sensors; the design of the first housing allows the turbidity sensor, temperature sensor, pressure sensor, and base to be housed within the first housing, thus providing a certain degree of protection; the design of the first protrusion on the second housing creates a gap between adjacent first protrusions, facilitating engagement with the washing machine; the multiple gaps allow the washing machine to engage with different gaps, adjusting the depth of the sensors in the washing machine drum, thereby increasing the applicable scenarios and range, improving flexibility, and reducing costs; by introducing the sensing device of this application, the installation of the washing machine and the sensing device becomes more compatible and flexible.

[0017] Additional aspects and advantages of this application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of this application. Attached Figure Description

[0018] The above and / or additional aspects and advantages of this application will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0019] Figure 1 This is a schematic diagram of a sensing device according to an embodiment of this application;

[0020] Figure 2 for Figure 1 The diagram shown is a schematic of the sensing device without its housing.

[0021] Figure label:

[0022] Base 100; Infrared transmitter 101; Infrared receiver 102; Temperature sensor 103; Second protrusion 104; Third protrusion 105; Speed ​​sensor 106; Ceramic ring 110; Ceramic diaphragm 120; Sealing ring 130; First housing 140; Sixth protrusion 141; Connecting hole 142; Fourth protrusion 143; Fifth protrusion 144; Second housing 150; First protrusion 151. Detailed Implementation

[0023] The embodiments of this application are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this application, and should not be construed as limiting this application.

[0024] In the description of this application, it should be understood that the orientation descriptions, such as up, down, front, back, left, right, etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0025] In the description of this application, "several" means one or more, "more than" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. The use of "first" and "second" in the description is merely for distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.

[0026] In the description of this application, unless otherwise expressly defined, terms such as "setup," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this application in conjunction with the specific content of the technical solution.

[0027] Currently, existing turbidity sensors on the market are usually fixed to the bottom of the washing machine drum and are not adjustable. This makes traditional turbidity sensors less flexible. When dealing with washing machines of different sizes, the required depth inside the drum varies. Therefore, it is often necessary to redesign and produce turbidity sensor housings that are compatible with different sizes of washing machines, which increases production costs.

[0028] Based on this, this application proposes a sensing device and washing machine that can adjust the depth of the device sensor inserted into the washing machine drum during installation so that the device sensor comes into contact with the water flow being measured, thereby improving flexibility and reducing costs.

[0029] It is understood that the sensing device in this application embodiment includes a base 100, a housing, and a first protrusion 151. The base 100 is provided with a turbidity sensor, a temperature sensor 103, and a pressure sensor. The housing includes a first outer shell 140 and a second outer shell 150. The base 100, the turbidity sensor, the temperature sensor 103, and the pressure sensor are all disposed inside the first outer shell 140, and the second outer shell 150 is sleeved on the outer side wall of the first outer shell 140. There are multiple first protrusions 151, and the multiple first protrusions 151 are sequentially sleeved on the outer side wall of the second outer shell 150. There is a gap between two adjacent first protrusions 151, and the gap is used for engaging with a washing machine.

[0030] The beneficial effects of the sensing device in this application embodiment are as follows: by setting a substrate to support the various components of the sensing device, the turbidity sensor facilitates the monitoring of the turbidity of the measured water flow; the temperature sensor 103 is used to monitor the water temperature of the measured water flow so that the turbidity sensor can be activated again within an appropriate water temperature range to ensure the accuracy of the turbidity sensor; and the pressure sensor is used to monitor the water pressure of the measured water flow, thereby indirectly obtaining the water level height of the measured water flow at this time, so that the turbidity sensor can be activated again within an appropriate water level range to avoid insufficient water level causing the turbidity sensor to start monitoring before contacting the measured water flow. This affects the accuracy of the turbidity sensor. The first housing 140 houses the turbidity sensor, temperature sensor 103, pressure sensor, and base 100, thus providing some protection. The first protrusion 151 on the second housing 150 creates a gap between adjacent protrusions 151, facilitating engagement with the washing machine. The multiple gaps allow the washing machine to engage with different gaps, adjusting the depth of the sensor's penetration into the washing machine drum. This increases the adaptability and range, improves flexibility, and reduces costs.

[0031] For example, in some embodiments, reference is made to Figure 1 and Figure 2In this embodiment, a turbidity sensor, a temperature sensor 103, and a pressure sensor are provided on the base 100. The turbidity sensor facilitates the monitoring of the turbidity of the measured water flow. Since temperature can affect turbidity monitoring to some extent, a temperature sensor 103 is provided so that the turbidity sensor is activated only when the temperature of the measured water flow is within a suitable range. The turbidity sensor needs to be in contact with the measured water flow to monitor turbidity; therefore, the pressure sensor facilitates the indirect measurement of the water level, making the monitoring more efficient. When the water level of the measured water flow is within a suitable range, that is, when the water level reaches the height where it contacts the turbidity sensor, the turbidity sensor is activated to monitor the turbidity of the measured water flow. This is to prevent the turbidity sensor from activating turbidity monitoring before it comes into contact with the water flow, which could affect the accuracy of turbidity monitoring. Therefore, the accuracy of turbidity monitoring is ensured and improved by using a temperature sensor 103 and a pressure sensor. The turbidity sensor, temperature sensor 103, and pressure sensor are all attached to the base 100 and housed within the first housing 140, thus ensuring the accuracy of turbidity monitoring. 3. The pressure sensor is protected to prevent damage from impacts during use. Multiple first protrusions 151 are sleeved on the outer wall of the second housing 150. These protrusions 151 are spaced apart along the height of the second housing 150, with gaps between adjacent protrusions 151 to allow for engagement with the corresponding structure of the washing machine. Multiple gaps allow the washing machine to engage with different gaps, adjusting the depth of the sensing device from the bottom of the washing machine drum. This prevents inaccurate monitoring of turbidity due to shallow depth or excessive depth where the turbidity sensor exceeds the water level, hindering effective turbidity monitoring. Adjustable depth also allows the sensing device to adapt to more washing machine sizes, increasing its applicability and flexibility. Unlike traditional turbidity sensors, which require redesigning and manufacturing housings for different sizes, adjustable depth also reduces costs.

[0032] It is understood that: the base 100 is provided with a second protrusion 104 and a third protrusion 105, the turbidity sensor includes an infrared receiver 102 and an infrared emitter 101, the infrared emitter 101 is provided on one side of the second protrusion 104, the infrared receiver 102 is provided on one side of the third protrusion 105, the infrared receiver 102 is used to receive the infrared light emitted by the infrared emitter, the temperature sensor 103 is provided on the side of the second protrusion 104 where the infrared emitter 101 is located, and the part of the first housing 140 that is fitted onto the second protrusion 104 and the third protrusion 105 is a transparent structure.

[0033] For example, in some embodiments, reference is made to Figure 1 and Figure 2 In this embodiment, the turbidity sensor is an optical turbidity sensor. The base 100 extends with a second protrusion 104 and a third protrusion 105. An infrared emitter 101 is fixed to the second protrusion 104, and an infrared receiver 102 is fixed to the third protrusion 105. Both the infrared receiver 102 and the infrared emitter 101 are located on the same side of the base 100 to facilitate the reception and emission of infrared light. The first outer shell 140 is fitted with a fourth protrusion 143 and a fifth protrusion 144 on the second protrusion 104 and the third protrusion 105, respectively. Both protrusions are transparent, allowing the infrared light emitted by the infrared emitter 101 to be transmitted sequentially through the fourth protrusion 143 and the fifth protrusion 144 to the infrared receiver 102, while also ensuring that the infrared emitter 101 and the infrared receiver 102 do not directly contact the water flow being measured. The fourth protrusion 143 and the fifth protrusion 144... There are gaps between the protrusions 144, which allows the water flow to be filled during measurement. This allows the infrared receiver 102 and the infrared transmitter 101 to monitor the turbidity of the water flow through the gaps. The working principle of the turbidity sensor is as follows: the infrared receiver 102 emits infrared light that passes through the fourth protrusion 143 and enters the water flow. When the water flow contains suspended particles or other impurities, the infrared light will scatter. That is, the suspended particles or other impurities change the direction of infrared light propagation, causing the infrared light to disperse in all directions, which is scattered light. The infrared light that is not absorbed or scattered by the suspended particles or other impurities continues to propagate through the water flow, which is transmitted light, until it passes through the fifth protrusion 144 and enters the first housing 140, where it is received by the infrared receiver 102. The turbidity of the water flow can then be calculated from the scattered light and the transmitted light.

[0034] It is understandable that the temperature sensor 103 is located on the side of the infrared emitter 101 away from the base 100.

[0035] For example, in some embodiments, reference is made to Figure 1 and Figure 2 In this embodiment, the temperature sensor 103 is located on the side of the infrared transmitter 101 away from the base 100, so that the temperature sensor 103 can preferentially monitor the temperature of the water flow being measured through the fourth protrusion 143, and then determine whether to turn on the turbidity sensor based on the monitored temperature value, thereby improving the accuracy of the turbidity sensor detection.

[0036] It is understandable that the first outer casing 140 is provided with a connection hole 142, which is used to fix the casing to the washing machine by means of a bolt structure.

[0037] For example, in some embodiments, reference is made to Figure 1In this embodiment, the outer side wall of the first housing 140 is provided with three sixth protrusions 141, and each of the three sixth protrusions 141 is provided with a connection hole 142. The connection hole 142 can be fixedly connected to the bottom of the washing machine drum housing by a bolt structure. In addition, based on the engagement connection between the first protrusion 151 and the washing machine, the connection between the sensing device and the washing machine is further stabilized, so as to avoid the sensing device and the washing machine from separating during use, thereby causing damage to the sensing device and increasing the maintenance cost.

[0038] It is understood that the pressure sensor includes a ceramic ring 110 and a ceramic diaphragm 120. The first housing 140 is provided with a first port. The ceramic ring 110 is located on the side of the first housing 140 near the base 100. A second port is provided at the center of the ceramic ring 110. The first port and the second port are aligned and connected. The ceramic diaphragm 120 is sealed and covered on the side of the second port away from the first port.

[0039] For example, in some embodiments, reference is made to Figure 2 In this embodiment, the pressure sensor is a ceramic pressure sensor. Ceramic has stable chemical properties, ensuring that the pressure sensor maintains stable measurement accuracy even during long-term pressure cycling. The ceramic pressure sensor includes a ceramic ring 110 and a ceramic diaphragm 120. The ceramic ring 110 is disposed inside the first housing 140. The second opening at the center of the ceramic ring 110 is aligned with the first opening and connects the inner and outer parts of the first housing 140. The ceramic diaphragm 120 seals and covers the side of the ceramic ring 110 away from the first opening to prevent the measured water flow from entering the first housing 140. In actual use, the measured water flow sequentially... The water flows through the first and second ports and contacts the ceramic diaphragm 120 near the ceramic ring 110. When the water level of the measured water rises, the measured water squeezes the ceramic diaphragm 120 to undergo elastic deformation in the direction away from the ceramic ring 110, so as to sense the water pressure of the measured water at this time. Then, according to the preset correspondence between water pressure and water level, the actual water level height of the measured water is obtained. Based on the actual water level height, it is determined whether to activate the turbidity sensor for turbidity monitoring, so as to prevent insufficient water level, which would cause the turbidity sensor to fail to contact the measured water when it starts monitoring, thus affecting the accuracy of the turbidity sensor.

[0040] It is understood that the sensing device of this application also includes a sealing ring 130, and the ceramic ring 110 is connected to the first housing 140 through the sealing ring 130.

[0041] For example, in some embodiments, reference is made to Figure 2In this embodiment, the ceramic ring 110 is sealed to the first housing 140 through the sealing ring 130 to further improve airtightness and prevent the water being tested from entering the housing through the gap between the ceramic ring 110 and the first housing 140, thereby corroding and damaging the devices in the housing and increasing maintenance costs.

[0042] It is understood that the sensing device of this application also includes a water quality sensor, which is mounted on the base 100 and is used to monitor the parameters of the water flow being measured.

[0043] For example, in some embodiments, the water quality sensor (not shown in the figures) is a conductivity sensor. The conductivity sensor includes a first electrode, a second electrode, and a first signal processing module. The first signal processing module is disposed on the base 100. The first electrode is electrically connected to the first signal processing module and extends out of the first housing 140, and is in direct contact with the water flow being measured during monitoring. The second electrode is electrically connected to the first signal processing module and extends out of the first housing 140, and is in direct contact with the water flow being measured during monitoring. During conductivity monitoring, a stable AC voltage is applied to the first and second electrodes towards the water flow being measured. The current value between the first and second electrodes is then collected by the first signal processing module. The conductivity of the water flow is calculated based on the collected current value. The washing state is then determined by the change and magnitude of the conductivity. For example, if the conductivity rises rapidly and reaches a preset threshold, it is determined that the washing is in its initial stage and the detergent has been fully dissolved. The conductivity sensor is designed to assist the turbidity sensor in monitoring the turbidity of the water flow. When the conductivity sensor determines that the washing state of the water flow has reached a preset stage by monitoring the conductivity, the turbidity sensor can be activated, thereby improving the accuracy of the turbidity sensor. This allows the turbidity sensor to be activated only during the preset washing stage, rather than running continuously, thus reducing energy consumption and extending the service life of the turbidity sensor to some extent.

[0044] It is understood that the sensing device of this application also includes a foam sensor, which is mounted on the base 100 and is used to monitor the foam in the water flow being measured.

[0045] For example, in some embodiments, the foam sensor (not shown in the figures) includes a second signal processing module, a third electrode, and a fourth electrode. The second signal processing module is disposed on the base 100. The third electrode is electrically connected to the second signal processing module and extends and is fixed outside the first housing 140, such that the third electrode is positioned above the water flow being measured during monitoring. The fourth electrode is also electrically connected to the second signal processing module and extends and is fixed outside the first housing 140, such that the fourth electrode is positioned above the water flow being measured during monitoring. The foam sensor is designed to facilitate monitoring the height of generated foam. Its specific working principle is as follows: initially, when no foam is generated, the medium between the third and fourth electrodes is air, resulting in extremely high resistance between the third and fourth electrodes. The block outputs no current. However, when foam begins to be produced and reaches the height of the third and fourth electrodes, the foam will coat the ends of the third and fourth electrodes. Since the foam contains detergent, whose conductivity is much higher than air, the resistance between the third and fourth electrodes drops significantly. The second signal processing module then generates current, which is used to determine the foam height. For example, if the resistance remains high and the second signal module generates no current, it means the foam has not reached the height of the third and fourth electrodes, and the foam quantity is considered normal. If the resistance continues to decrease and falls below a preset threshold, while the current continues to increase and rises above the preset threshold, it means the foam has contacted the third and fourth electrodes, indicating excessive foam quantity, requiring immediate action. By setting a foam sensor, the startup time of the turbidity sensor can be optimized. If the measured water flow produces excessive foam while the turbidity sensor is operating, it may misjudge due to foam interference. Therefore, by monitoring with the foam sensor, the turbidity sensor is only activated when the foam quantity is normal, thereby further improving the monitoring accuracy of the turbidity sensor.

[0046] It is understood that the sensing device of this application also includes a speed sensor 106, which is disposed on the base 100. The side of the speed sensor 106 away from the base 100 is used to be electrically connected to the motor of the washing machine. The speed sensor 106 is used to monitor the speed of the washing machine motor.

[0047] For example, in some embodiments, reference is made to Figure 2In this embodiment, the speed sensor 106 is electrically connected to the washing machine motor to obtain the motor's rotation speed. The rotation speed is then used to determine the current turbidity within the washing machine. The speed sensor 106 assists the turbidity sensor in measuring the turbidity of the water flow. For example, during use, a large amount of clothing may absorb stains, causing the turbidity of the water flow to be lower than the actual turbidity. In this case, the preset cleaning turbidity of the turbidity sensor needs to be lowered. The preset cleaning turbidity is the turbidity originally set to indicate that cleaning is complete. Due to the large amount of clothing, this turbidity needs to be adjusted downwards, meaning the final monitored turbidity should be lower than the original preset value. This adjustment can be triggered by the speed sensor 106. When the speed sensor 106 detects a slow increase in motor speed, it indicates a high load on the washing machine, i.e., a large amount of clothing. The preset cleaning turbidity of the turbidity sensor can then be lowered, thereby further improving the accuracy of the turbidity sensor.

[0048] The washing machine according to the second aspect embodiment of the application includes the sensing device of the first aspect embodiment of the application described above.

[0049] According to the washing machine of the present application embodiment, the present application uses a substrate to carry the various components of the sensing device of the present application. The setting of the turbidity sensor facilitates the monitoring of the turbidity of the measured water flow. The temperature sensor 103 is used to monitor the water temperature of the measured water flow so that the turbidity sensor can be activated again within an appropriate water temperature range to ensure the accuracy of the turbidity sensor. The pressure sensor is used to monitor the water pressure of the measured water flow, thereby indirectly obtaining the water level height of the measured water flow at this time, so that the turbidity sensor can be activated again within an appropriate water level range to avoid insufficient water level height, which would cause the turbidity sensor to start monitoring before contacting the measured water flow, thereby affecting the accuracy of the turbidity sensor; the first housing 1 The placement of the 40 allows the turbidity sensor, temperature sensor 103, pressure sensor, and base 100 to be housed within the first housing 140, thus providing a certain degree of protection. The placement of the first protrusion 151 on the second housing 150 creates a gap between adjacent first protrusions 151, facilitating engagement with the washing machine. The multiple gaps allow the washing machine to engage with different gaps, adjusting the depth of the sensor's penetration into the washing machine drum. This increases the adaptability and scope, enhances flexibility, and reduces costs. By introducing the sensing device of this application, the installation of the washing machine and the sensing device becomes more compatible and flexible.

[0050] Since the washing machine includes the sensing device of the first aspect embodiment, the corresponding contents of the sensing device in the first aspect embodiment can be applied to the washing machine of the second aspect, and have the same implementation principle and technical effect. To avoid redundancy, it will not be described in detail here.

[0051] The embodiments of this application have been described in detail above with reference to the accompanying drawings. However, this application is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of this application.

Claims

1. A sensing device, characterized in that, include: A base, on which a turbidity sensor, a temperature sensor, and a pressure sensor are mounted; The housing includes a first outer shell and a second outer shell. The base, the turbidity sensor, the temperature sensor, and the pressure sensor are all disposed inside the first outer shell, and the second outer shell is fitted onto the outer wall of the first outer shell. The first protrusion has multiple protrusions, which are sequentially fitted onto the outer side wall of the second outer shell. A gap is provided between two adjacent first protrusions, and the gap is used for engaging with the washing machine.

2. The sensing device according to claim 1, characterized in that, The base has a second protrusion and a third protrusion. The turbidity sensor includes an infrared receiver and an infrared emitter. The infrared emitter is located on one side of the second protrusion, and the infrared receiver is located on one side of the third protrusion. The infrared receiver is used to receive the infrared light emitted by the infrared emitter. The temperature sensor is located on the side of the second protrusion where the infrared emitter is located. The portion of the first housing that is fitted over the second and third protrusions is transparent.

3. The sensing device according to claim 2, characterized in that, The temperature sensor is located on the side of the infrared emitter away from the base.

4. The sensing device according to claim 1, characterized in that, The first outer casing is provided with a connection hole, which is used to fix it to the washing machine by means of a bolt structure.

5. The sensing device according to claim 1, characterized in that, The pressure sensor includes a ceramic ring and a ceramic diaphragm. The first housing has a first port. The ceramic ring is located on the side of the first housing near the base. The center of the ceramic ring has a second port. The first port and the second port are aligned and connected. The ceramic diaphragm is sealed and covered on the side of the second port away from the first port.

6. The sensing device according to claim 5, characterized in that, It also includes a sealing ring, through which the ceramic ring is connected to the first housing.

7. The sensing device according to claim 1, characterized in that, It also includes a water quality sensor, which is mounted on the base and is used to monitor the parameters of the water flow being measured.

8. The sensing device according to claim 1, characterized in that, It also includes a foam sensor, which is mounted on the base and is used to monitor the foam in the water flow being measured.

9. The sensing device according to claim 1, characterized in that, It also includes a speed sensor, which is mounted on the base. The side of the speed sensor away from the base is used to be electrically connected to the motor of the washing machine. The speed sensor is used to monitor the speed of the washing machine motor.

10. A washing machine, characterized in that, include: The sensing device according to any one of claims 1 to 9.

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