Liquid milk detection display device and electric appliance

Abstract

The utility model provides a liquid milk detection display device and an electric appliance, and relates to the technical field of electric appliance equipment, the liquid milk detection display device comprises a bearing part, a controller and a display screen, the bearing part is provided with an accommodating groove, and the bottom of the bearing part is provided with a measuring sensor. The measuring sensor and the display screen are electrically connected with the controller. The device can automatically detect and display the amount of liquid milk in the containing groove and visually display detection data through the display screen, so that a user can know the amount condition of the liquid milk at any time, and response adjustment can be conveniently made in time.

Description

Technical Field

[0001] The utility model relates to the technical field of electrical equipment, in particular to a liquid milk detection and display device and an electrical appliance. Background Art

[0002] With the improvement of living standards, coffee machines have become indispensable beverage preparation equipment in many families and office environments. There are a wide variety of coffee machines on the market with different functions. In order to enrich the taste and nutritional value of coffee, many people choose to add fresh liquid milk to coffee. However, there is a common problem with existing coffee machines. When making milk-containing coffee, users cannot accurately know the remaining amount of liquid milk or coffee creamer. This may lead to interruption during the production process due to insufficient milk, affecting the taste and production efficiency of coffee.

[0003] The prior art CN210330321U discloses a milk adding device for a coffee machine with a liquid level alarm function. The milk adding device further includes a liquid level alarm device. The liquid level alarm device includes a first non-contact liquid level sensor and a second non-contact liquid level sensor which are arranged up and down on the outer side wall of the liquid storage tank, and further includes a warning lamp arranged on an external refrigerator and a signal conversion device for converting the signals detected by the first non-contact liquid level sensor and the second non-contact liquid level sensor. This milk adding device can monitor the amount of milk in the liquid storage tank in real time. However, this milk adding device detects the milk volume in the liquid storage tank through a non-contact liquid level sensor, and the non-contact liquid level sensor can only detect whether there is liquid at the installation position. Once the liquid level of the liquid storage tank is far from the plane where the non-contact liquid level sensor is located, it cannot accurately reflect the milk volume in the liquid storage tank.

[0004] Therefore, it is necessary to improve the detection method of liquid milk in existing coffee machines to overcome the defects of the prior art. Summary of the Utility Model

[0005] To overcome the problems existing in the related art, one of the purposes of the present utility model is to provide a liquid milk detection and display device which can automatically detect and display the amount of liquid milk in the receiving tank, and directly display the detection data on the display screen, so that users can understand the quantity of liquid milk at any time and make timely response adjustments.

[0006] A liquid milk detection and display device includes:

[0007] A carrier on which a receiving tank is arranged, and a measurement sensor is arranged at the bottom of the carrier;

[0008] A controller and a display screen, the measurement sensor and the display screen are both electrically connected to the controller, and the display screen.

[0009] In a preferred technical solution of the present utility model, the measurement sensor is a weight sensor or a pressure sensor.

[0010] In a preferred technical solution of the present utility model, a buzzer is further included, and the buzzer is electrically connected to the controller.

[0011] In a preferred technical solution of the present utility model, a refrigeration unit is further provided at the bottom of the carrier. The refrigeration unit includes a refrigeration end and a heating end, and the carrier is detachably arranged on the refrigeration end of the refrigeration unit;

[0012] A heat dissipation structure is provided at the heating end of the refrigeration unit.

[0013] In a preferred technical solution of the present utility model, a cold plate is arranged between the refrigeration end and the carrier. An installation groove is arranged in the middle of the cold plate, and the measurement sensor is arranged in the installation groove and is in contact with the carrier;

[0014] A heat-conducting material is arranged between the cold plate and the refrigeration end.

[0015] In a preferred technical solution of the present utility model, the outer wall of the carrier is coated with a heat-insulating layer, and the heat-insulating layer is coated on the outer wall of the receiving groove.

[0016] In a preferred technical solution of the present utility model, the heat dissipation structure includes a diversion structure and a fan. The diversion structure includes two relatively arranged first mounting substrates and a second mounting substrate. The first mounting substrate is in contact with the heating end of the refrigeration unit;

[0017] A plurality of diversion plates are arranged between the two mounting substrates. The plurality of diversion plates are evenly distributed between the two mounting substrates along the circumferential direction of the first mounting substrate; adjacent two of the diversion plates are arranged at intervals, and a diversion channel is formed between adjacent two of the diversion plates;

[0018] The fan is arranged on one side of the second mounting substrate, and an air passing port communicated with the air inlet end of the fan is arranged on the second mounting substrate.

[0019] In a preferred technical solution of the present utility model, an exhaust duct is arranged on one side of the fan. One end of the exhaust duct is communicated with the air outlet end of the fan, and the distance between the air outlet of the exhaust duct and the center line of the refrigeration unit is greater than 20 cm.

[0020] The second object of the present utility model is to provide an electrical appliance, including a main body, and the liquid milk detection and display device as described above is arranged on the main body.

[0021] The beneficial effects of the present utility model are:

[0022] The present utility model provides a liquid milk detection and display device, which includes: a carrier, a controller and a display screen. An accommodation groove is provided on the carrier, and a measurement sensor is provided at the bottom of the carrier. The measurement sensor and the display screen are both electrically connected to the controller. In practical applications, when the amount of liquid milk in the accommodation groove changes, the measurement sensor will immediately sense this change and transmit the changed data to the controller. After receiving the data, the controller processes the data and sends the processed data to the display screen so that the operator can intuitively see the real-time change of the liquid milk amount. Through the measurement sensor, this device can detect the amount of liquid milk in the accommodation groove in real time, enabling the operator to understand the quantity of liquid milk at any time, which can overcome the defect of limited detection position of non-contact liquid level sensors. This device can be applied to electrical appliances such as coffee machines to improve the user experience.

[0023] This application also provides an electrical appliance including the above liquid milk detection and display device. This electrical appliance can detect the amount of liquid milk used in real time through the above liquid milk detection and display device, display it through the display screen, and enable the user to intuitively understand it, which can enhance the user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic structural diagram of the liquid milk detection and display device provided in the embodiment of this application;

[0025] Figure 2 It is a three-dimensional view of the carrier cooperating with the refrigeration unit and the heat dissipation structure provided in the embodiment of this application;

[0026] Figure 3 is Figure 2 an internal cross-sectional view of the structure of;

[0027] Figure 4 It is a schematic structural diagram of the measurement sensor arranged in the cold plate provided in the embodiment of this application;

[0028] Figure 5 It is a schematic structural diagram of the electrical appliance including the liquid milk detection and display device provided in the embodiment of this application.

[0029] Reference Signs:

[0030] 1. Carrier; 11. Accommodation groove; 12. Thermal insulation layer; 2. Refrigeration unit; 21. Refrigeration end; 22. Heating end; 23. Cold plate; 231. Installation groove; 24. Thermal conductive material; 3. Heat dissipation structure; 31. Diversion structure; 311. Diversion plate; 312. First installation substrate; 313. Diversion channel; 314. Second installation substrate; 32. Fan; 4. Exhaust duct; 41. Air outlet; 5. Measurement sensor; 6. Controller; 7. Display screen; 8. Buzzer; 100. Main body. Detailed Implementation Modes

[0031] The preferred implementation modes of the present utility model will be described in more detail below with reference to the accompanying drawings. Although the preferred implementation modes of the present utility model are shown in the drawings, it should be understood that the present utility model can be implemented in various forms and should not be limited by the implementation modes described herein. On the contrary, these implementation modes are provided to make the present utility model more thorough and complete, and to be able to fully convey the scope of the present utility model to those skilled in the art.

[0032] The terms used in the present utility model are only for the purpose of describing specific embodiments and are not intended to limit the present utility model. The singular forms of "a", "the", and "the" used in the present utility model and the appended claims are also intended to include the plural forms unless the context clearly indicates otherwise. It should also be understood that the term "and / or" used herein refers to and includes any or all possible combinations of one or more of the associated listed items.

[0033] It should be understood that although the terms "first", "second", "third", etc. may be used in the present utility model to describe various information, such information should not be limited to these terms. These terms are only used to distinguish the same type of information from each other. For example, without departing from the scope of the present utility model, the first information may also be referred to as the second information, and similarly, the second information may also be referred to as the first information. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present utility model, "a plurality of" means two or more unless otherwise specifically defined.

[0034] A milk adding device for a coffee machine with a liquid level alarm function disclosed in the prior art. The milk adding device further includes a liquid level alarm device. The liquid level alarm device includes a first non-contact liquid level sensor and a second non-contact liquid level sensor which are arranged on the outer side wall of the liquid storage tank and arranged vertically, and further includes a warning light arranged on an external refrigerator and a signal conversion device for converting the signals detected by the first non-contact liquid level sensor and the second non-contact liquid level sensor. The milk adding device can monitor the amount of milk in the liquid storage tank in real time. However, the milk adding device detects the amount of milk in the liquid storage tank through a non-contact liquid level sensor, and the non-contact liquid level sensor can only detect whether there is liquid at the installation position. Once the liquid level of the liquid storage tank is far from the plane where the non-contact liquid level sensor is located, it cannot accurately reflect the amount of milk in the liquid storage tank.

[0035] Based on this, the present application provides a liquid milk detection and display device.

[0036] Embodiment 1

[0037] As Figures 1 - 4As shown, this embodiment provides a liquid milk detection and display device, including:

[0038] A carrier 1, on which a receiving groove 11 is provided, and a measuring sensor 5 is provided at the bottom of the carrier 1;

[0039] A controller 6 and a display screen 7, the measuring sensor 5 and the display screen 7 are both electrically connected to the controller 6, and the display screen 7.

[0040] Specifically, the measuring sensor 5 is a weight sensor or a pressure sensor.

[0041] In one implementation, the weight sensor is installed at the bottom of the receiving groove 11, and is used to sense the weight or pressure change of the liquid in the receiving groove 11, and convert these changes into electrical signals for output. A signal processing circuit is provided in the controller 6, and the signal processing circuit receives the electrical signals output by the weight sensor, and performs amplification, filtering, and digital processing to extract information related to the liquid level change. A microprocessor is also provided in the controller 6, and the microprocessor receives the output data of the signal processing circuit, and according to the preset algorithms and formulas, converts the electrical signals into specific liquid level values. At the same time, the microprocessor is also responsible for controlling the display content of the display screen 7. The display screen 7 can be used to display the liquid level value or the liquid level change curve of the liquid in the barrel in real time.

[0042] In another implementation, the pressure sensor detects the liquid level change as follows: The pressure sensor installed at the bottom of the receiving groove 11 first senses the static pressure generated by the liquid in the receiving groove 11 on it. This static pressure is related to the density and liquid level height of the liquid. When the liquid level rises, the static pressure increases; when the liquid level drops, the static pressure decreases. The elastic element (such as an elastic diaphragm) inside the pressure sensor will deform due to the change of the static pressure. This deformation will cause changes in the resistance, capacitance or other electrical parameters inside the pressure sensor. The pressure sensor converts these physical changes into electrical signals proportional to the pressure, such as changes in voltage or current. The electrical signals are then transmitted to the signal processing circuit. In the signal processing circuit, the electrical signals are further processed and analyzed to extract information related to the liquid level change. The microprocessor receives the output data of the signal processing circuit, and according to the preset algorithms and formulas, converts the electrical signals into specific liquid level values.

[0043] In practical applications, when the amount of liquid milk in the accommodation groove 11 changes, the measurement sensor 5 will immediately sense this change and transmit the changed data to the controller 6. After receiving the data, the controller 6 processes the data and sends the processed data to the display screen 7 so that the operator can intuitively see the real-time change of the liquid milk amount. Through the measurement sensor 5, this device can detect the amount of liquid milk in the accommodation groove 11 in real time, enabling the operator to know the quantity of liquid milk at any time, which can overcome the defect of limited detection position of non-contact liquid level sensors. This device can be applied to electrical appliances such as coffee machines to improve the user experience.

[0044] It should be noted that the algorithms of how the signal processing circuit and microprocessor in the controller 6 convert the signal change of the measurement sensor into the liquid level change of the liquid milk in the accommodation groove 11 are prior arts, and this application does not protect them. Therefore, the processing process of this algorithm will not be elaborated here.

[0045] Furthermore, the liquid milk detection and display device further includes a buzzer 8, and the buzzer 8 is electrically connected to the controller 6.

[0046] In actual operation, when the measurement sensor 5 detects that the amount of liquid milk in the accommodation groove 11 reaches a preset threshold (such as the lowest value), it will send a signal to the controller 6. After receiving this signal, in addition to displaying relevant information through the display screen 7, the controller 6 will also control the buzzer 8 to emit a sound to remind the operator to pay attention to the change of the liquid milk amount.

[0047] Furthermore, a refrigeration unit 2 is further provided at the bottom of the carrier 1. The refrigeration unit 2 includes a refrigeration end 21 and a heating end 22, and the carrier 1 is detachably arranged on the refrigeration end 21 of the refrigeration unit 2;

[0048] A heat dissipation structure 3 is provided at the heating end 22 of the refrigeration unit 2.

[0049] The refrigeration unit 2 of this application is realized by using a thermoelectric cooler. The thermoelectric cooler has no mechanical moving parts, so it runs smoothly, reduces mechanical wear and noise, and improves the reliability of the equipment. Moreover, the thermoelectric cooler is small in size and light in weight, which is convenient for integration into various devices. It is used to refrigerate items in coffee machines or other electrical appliances, which can streamline the number of devices and save space. The thermoelectric cooler is driven by direct current and can quickly realize heat absorption and heat release at both ends of the thermocouple respectively, so as to achieve the refrigeration effect. And the cooling and heating time of the thermoelectric cooler is very fast, and the thermal inertia is small. In actual applications, this refrigeration and fresh-keeping device further includes a current control device, and the current control device is electrically connected to the thermoelectric cooler. By controlling the current input to the thermoelectric cooler, high-precision temperature control can be achieved, which is convenient for forming a remote control, program control, and automatic control system.

[0050] Specifically, an opening is provided at the top of the receiving groove 11, and the cross-section of the receiving groove 11 is annular, elliptical or polygonal. The receiving groove 11 forms a cylindrical structure, and the opening at the top of the loading groove facilitates the insertion and removal of liquid milk packages, such as liquid milk cans. The cross-section of the receiving groove 11 can be designed to be annular, elliptical or polygonal to accommodate liquid milk packages of different shapes and sizes. In a better embodiment, a limiting ring is provided at the opening at the top of the receiving groove 11. The outer wall of the limiting ring is clamped with the opening, and the inner wall forms a limit for the liquid milk package. Since the limiting ring is clamped, different limiting rings can be replaced as needed to adapt to the shapes of different liquid milk packages. In actual applications, the filled liquid milk can be placed in the receiving groove 11, and the weight change of the carrier 1 is detected by a weight sensor, so as to realize the detection of the amount of liquid milk.

[0051] Further, a cold plate 23 is provided between the refrigeration end 21 and the carrier 1. An installation groove 231 is provided in the middle of the cold plate 23, and the measurement sensor 5 is arranged in the installation groove 231 and is connected to the carrier 1; a heat-conducting material 24 is provided between the cold plate 23 and the refrigeration end 21. The heat-conducting material 24 is heat-conducting silicone grease.

[0052] In this application, by providing the receiving groove 11 in the cold plate 23, the refrigeration unit 2 and the measurement sensor 5 are integrated with each other, which can not only achieve the effect of detecting the amount of liquid milk in the receiving groove 11, but also cool the liquid milk in the receiving groove 11 through the refrigeration unit 2 and the cold plate 23.

[0053] Specifically, the cold plate 23 of this application includes a heat-conducting material 24 and a coating covering the surface of the heat-conducting material 24. The heat-conducting material 24 can be copper, and the coating can be a ceramic coating. The ceramic coating has excellent wear resistance and scratch resistance, which can improve the service life of the cold plate 23.

[0054] Further, the outer wall of the carrier 11 is covered with a heat-insulating layer 12, and the heat-insulating layer 12 is covered on the outer wall of the installation groove 231. The heat-insulating layer 12 can be polyurethane foam or polystyrene foam. The heat-insulating layer 12 is used to reduce the influence of the external environment on the refrigeration effect and improve the refrigeration efficiency.

[0055] In a more specific embodiment, the heat dissipation structure 3 includes a diversion structure 31 and a blower 32. The diversion structure 31 includes two relatively arranged first mounting substrates 312 and second mounting substrates 314, and the first mounting substrate 312 is connected to the heating end 22 of the refrigeration unit 2;

[0056] There are multiple flow guide plates 311 arranged between two mounting substrates, and the multiple flow guide plates 311 are evenly distributed in the circumferential direction of the first mounting substrate 312 between the two mounting substrates; adjacent two of the flow guide plates 311 are arranged at intervals, and a flow guide channel 313 is formed between adjacent two of the flow guide plates 311;

[0057] The fan 32 is arranged on one side of the second mounting substrate 314, and an air passing port communicated with the air inlet end of the fan 32 is arranged on the second mounting substrate 314.

[0058] When the fan 32 operates, air is inhaled through the air passing port, so that the outside air enters the fan 32 through the flow guide channel 313 and the air passing port. Therefore, the air flow can take away the heat generated on the heating end 22 side of the refrigeration unit 2 at the heat dissipation structure 3, achieving the purpose of heat dissipation. Specifically, the fan 32 of the present application can be a cross-flow fan 32.

[0059] In a better implementation manner, an exhaust duct 4 is arranged on one side of the fan 32, one end of the exhaust duct 4 is communicated with the air outlet end of the fan 32, and the distance between the air outlet 41 of the exhaust duct 4 and the center line of the refrigeration unit 2 is 18 - 22 cm. The length of the exhaust duct 4 can be greater than 20 cm, so that the hot air can be discharged to a farther place, avoiding the secondary heating of the device itself by the hot air. Specifically, the air outlet 41 of the exhaust duct 4 and the refrigeration end 21 of the refrigeration unit 2 should be in two different chambers to isolate heat exchange.

[0060] Embodiment 2

[0061] As Figures 1 - 5 shown, this embodiment also provides an electrical appliance including the above-mentioned liquid milk detection and display device. This electrical appliance can detect the amount of liquid milk used in real time through the above-mentioned liquid milk detection and display device, and display it through the display screen 7, so that the user can intuitively understand it, which can improve the user experience.

[0062] Specifically, the electrical appliance of the present application can be a coffee machine, a soymilk machine or other devices. For the electrical appliance including the above-mentioned liquid milk detection and display device provided by the present application, when the user is making coffee or soymilk, the device will detect the amount of liquid milk in the installation groove 231 added in real time and display it intuitively through the display screen 7. In this way, the user can adjust the formula according to the displayed amount of liquid milk to meet the needs of personal taste. When the amount of liquid milk is lower than the preset value, the buzzer 8 will give a reminder to inform the user to add liquid milk in time to ensure the smooth progress of the production process. This design not only improves the production efficiency but also avoids the failure of product production due to insufficient liquid milk.

[0063] The embodiments of the present utility model have been described above. The above description is exemplary and not exhaustive, and is also not limited to the disclosed embodiments. Many modifications and variations are obvious to those of ordinary skill in the art without departing from the scope and spirit of the described embodiments. The selection of the terms used herein is intended to best explain the principles of the embodiments, the practical application, or the improvement of the technology in the market, or to enable other ordinary technical personnel in the technical field to understand the embodiments disclosed herein.

Claims

1. A liquid milk detection and display device, characterized in that: include: A carrier (1), wherein a receiving groove (11) is provided on the carrier (1), and a measuring sensor (5) is provided at the bottom of the carrier (1); A controller (6) and a display screen (7), wherein the measuring sensor (5) and the display screen (7) are both electrically connected to the controller (6), and the display screen (7).

2. The liquid milk detection and display device according to claim 1, characterized in that: The measuring sensor (5) is a weight sensor or a pressure sensor.

3. The liquid milk detection and display device according to claim 1, characterized in that: It also includes a buzzer (8), which is electrically connected to the controller (6).

4. The liquid milk detection and display device according to any one of claims 1 to 3, characterized in that: A refrigeration unit (2) is also arranged at the bottom of the carrier (1), the refrigeration unit (2) comprising a refrigeration end (21) and a heating end (22), and the carrier (1) is detachably arranged on the refrigeration end (21) of the refrigeration unit (2); The heating end (22) of the refrigeration unit (2) is provided with a heat dissipation structure (3).

5. The liquid milk detection and display device according to claim 4, characterized in that: A cold plate (23) is provided between the refrigeration end (21) and the bearing member (1), a mounting groove (231) is provided in the middle of the cold plate (23), and the measuring sensor (5) is arranged in the mounting groove (231) and connected to the bearing member (1); A heat-conducting material (24) is provided between the cold plate (23) and the refrigeration end (21).

6. The liquid milk detection and display device according to claim 4, characterized in that: The outer wall of the bearing member (1) is coated with a heat-insulating layer (12), and the heat-insulating layer (12) is coated on the outer wall of the containing groove (11).

7. The liquid milk detection and display device according to claim 4, characterized in that: The heat dissipation structure (3) comprises a flow guiding structure (31) and a fan (32); the flow guiding structure (31) comprises two oppositely arranged first mounting substrates (312) and second mounting substrates (314); the first mounting substrate (312) is connected to the heating end (22) of the refrigeration unit (2); A plurality of guide plates (311) are arranged between the two mounting substrates, and the plurality of guide plates (311) are evenly distributed between the two mounting substrates along the circumference of the first mounting substrate (312); two adjacent guide plates (311) are arranged at intervals, and a guide channel (313) is formed between the two adjacent guide plates (311); The fan (32) is arranged on one side of the second mounting substrate (314), and the second mounting substrate (314) is provided with an air outlet connected to an air inlet end of the fan (32).

8. The liquid milk detection and display device according to claim 7, characterized in that: An exhaust pipe (4) is provided on one side of the fan (32), one end of the exhaust pipe (4) is connected to the air outlet end of the fan (32), and the distance between the air outlet (41) of the exhaust pipe (4) and the center line of the refrigeration unit (2) is 18-22 cm.

9. An electrical appliance, comprising a main body (100), characterized in that: The main body (100) is provided with a liquid milk detection and display device according to any one of claims 1 to 8.

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