Instant electric heating water cup

Abstract

The utility model discloses a quick-heating water heating cup. Comprising a cup body, an inner container arranged in the cup body, a bottom cover arranged on the lower side of the cup body, a cup cover arranged on the upper side of the cup body, a direct-current heating film spirally wound on the outer side of the inner container, a connecting support arranged on the lower side of the inner container and a PCB arranged on the connecting support and electrically connected with the direct-current heating film. The direct-current power supply access set is arranged on the rear lower side of the connecting support and electrically connected with the PCB, the temperature detection set is arranged on the upper side of the middle of the connecting support, extends upwards and is used for detecting and obtaining the temperature of liquid in the inner container, and the temperature display module is arranged on the front side of the connecting support, electrically connected with the PCB and used for displaying the temperature of the liquid in the inner container. The contact area of the direct-current heating film and the inner container is increased, namely when the direct-current power source is connected through the direct-current power source connection set, the heating rate can be further increased under the set heating power, and the waiting time of a user is shortened.

Description

Technical Field

[0001] This application relates to the technical field of electric water cups, and particularly to a quickly heatable electric water cup. Background Art

[0002] In recent years, with the improvement of people's living standards and the pursuit of a healthy lifestyle, electric water cups have been introduced in the market. Their original design intention is to enable people to enjoy clean and hygienic boiled water anytime and anywhere in different situations such as traveling, business trips, and working. Moreover, due to their significant advantages such as simple use and convenient carrying, they have gradually become an indispensable electrical appliance in people's daily lives.

[0003] However, for existing electric water cups, whether they are connected to alternating current or direct current, their heating rates are relatively slow and they cannot achieve rapid heating. Therefore, technicians in this field urgently need to develop an electric water cup that can quickly heat up to meet the actual usage requirements. Utility Model Content

[0004] The main purpose of this application is to provide a quickly heatable electric water cup, aiming to solve the above technical problems.

[0005] A quickly heatable electric water cup includes a cup body, an inner container disposed inside the cup body, a bottom cover disposed on the lower side of the cup body, and a cup lid disposed on the upper side of the cup body. The quickly heatable electric water cup further includes:

[0006] A direct current heating film, which is spirally wound around the outside of the inner container;

[0007] A connecting bracket, which is disposed on the lower side of the inner container;

[0008] A PCB circuit board, which is disposed on the connecting bracket and electrically connected to the direct current heating film;

[0009] A direct current power supply access group, which is disposed on the lower rear side of the connecting bracket and electrically connected to the PCB circuit board;

[0010] A temperature detection group, which is disposed on the upper side of the middle part of the connecting bracket and extends upward to detect and obtain the temperature of the liquid inside the inner container;

[0011] A temperature display module, which is disposed on the front side of the connecting bracket and electrically connected to the PCB circuit board for displaying the temperature of the liquid in the inner container.

[0012] For the quickly heatable electric water cup as described above, the winding pitch β of the direct current heating film is equal to the width of the direct current heating film.

[0013] For the quickly heatable electric water cup as described above, the direct current heating film is a graphene flexible heating film.

[0014] The above-mentioned quickly heatable electric water cup further includes a power switch disposed on the lower side of the temperature display module and electrically connected to the PCB circuit board.

[0015] In the above-mentioned quickly heatable electric water cup, a convex upper part is provided in the middle of the upper side of the connection bracket, and a vertically penetrating clamping hole for clamping the temperature detection group is provided on the convex upper part and penetrates up and down.

[0016] In the above-mentioned quickly heatable electric water cup, a left front connection part is provided on the left front side of the connection bracket, and a right front connection part is provided on the right front side thereof;

[0017] A left front wire groove is provided on the left front connection part, and a right front wire groove symmetrically arranged with the left front wire groove left and right is provided on the right front connection part. The right front wire groove and the left front wire groove cooperate to clamp the temperature display module;

[0018] An elastic auxiliary positioning member is provided on the front side of the temperature display module and protrudes forward for elastic auxiliary positioning;

[0019] An upper left convex tightening part that protrudes upward is provided on the upper side of the bottom cover, and an upper right convex tightening part is provided on the right side of the upper left convex tightening part; the upper left convex tightening part and the upper right convex tightening part cooperate to tightly limit the temperature display module.

[0020] In the above-mentioned quickly heatable electric water cup, the cup body includes an upper cup body and a lower cup body connected to the lower side of the upper cup body, and a containing space is formed between the upper cup body and the lower cup body;

[0021] The bottom cover is disposed on the lower side of the lower cup body and is connected to the connection bracket.

[0022] Compared with the prior art, the above application has the following advantages:

[0023] 1. The quickly heatable electric water cup of the present application uses the PCB circuit board as the control center, is electrically connected to components such as a DC heating film, a DC power access group, a temperature detection group, and a temperature display module, and then realizes an increase in the contact area between the DC heating film and the inner liner by the DC heating film wound in a spiral shape on the outside of the inner liner. That is, when a DC power supply is connected through the DC power access group, the heating rate can be further increased under the set heating power, reducing the waiting time of the user.

[0024] 2. The present application can also use the temperature detection group to continuously monitor the temperature of the liquid in the inner liner and visually display it to the user through the temperature display module, enabling the user to accurately master the water temperature and avoid overheating or insufficiency; and the power switch is set on the lower side of the temperature display module, which is convenient for the user to perform the switch operation while checking the temperature, improving the user experience. Description of the Drawings

[0025] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0026] Figure 1 It is a perspective view of the instant-heating electric water cup of the present application.

[0027] Figure 2 It is a partial exploded view of the instant-heating electric water cup of the present application.

[0028] Figure 3 It is Figure 2 partial enlarged view of Figure Ⅰ .

[0029] Figure 4 It is a perspective view of the instant-heating electric water cup of the present application with the cup body, inner liner, bottom cover, and cup lid hidden.

[0030] Figure 5 It is an exploded view of the instant-heating electric water cup of the present application with the cup body, inner liner, bottom cover, and cup lid hidden.

[0031] Figure 6 It is an exploded view of the AC heating tube, connection bracket, temperature display module, and power switch in the instant-heating electric water cup of the present application.

[0032] Figure 7 It is a perspective view of the cup lid in the instant-heating electric water cup of the present application, showing the open state.

[0033] Figure 8 It is the circuit structure block diagram on the PCB board in the instant-heating electric water cup of the present application Figure One .

[0034] Figure 9 It is Figure 8 circuit structure block diagram of the power supply circuit in

[0035] Figure 10 It is the first circuit schematic diagram of the instant-heating electric water cup of the present application.

[0036] Figure 11 It is Figure 8 circuit structure block diagram of the drive circuit in

[0037] Figure 12 It is Figure 11 circuit schematic diagram of the AC drive circuit in

[0038] Figure 13 is the circuit schematic diagram of the DC drive circuit in Figure 11 .

[0039] Figure 14 is the circuit structure frame on the PCB board of the quickly heatable electric water cup of the present application Figure Two .

[0040] Figure 15 is the circuit schematic diagram of the temperature detection circuit in Figure 14 .

[0041] Figure 16 is the circuit schematic diagram of the USB input circuit in the power supply circuit in Figure 8 .

[0042] Figure 17 is another circuit schematic diagram of the quickly heatable electric water cup of the present application. Specific embodiments

[0043] Next, the technical solutions in the embodiments of the present application will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the scope of protection of the present application.

[0044] It should be noted that all directional indications (such as up, down, left, right, front, back...) in the embodiments of the present application are only used to explain the relative positional relationship and movement conditions between components in a specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indications will also change accordingly.

[0045] In addition, the descriptions involving "first", "second", etc. in the present application are only for descriptive purposes, and cannot be understood as indicating or implying their relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one of such features. In addition, the technical solutions between various embodiments can be combined with each other, but it must be based on the fact that those of ordinary skill in the art can implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection required by the present application.

[0046] In an embodiment of the present application, as Figures 1 to 17As shown in the figure, a rapid heating electric water cup includes a cup body 100, an inner container 200 disposed inside the cup body 100, a bottom cover 300 disposed on the lower side of the cup body 100, and a cup cover 400 disposed on the upper side of the cup body 100; the rapid heating electric water cup further includes a DC heating film 1, a connecting bracket 4, a PCB circuit board 5, a DC power access group 7, a temperature detection group 8, and a temperature display module 9.

[0047] Specifically, the DC heating film 1 is spirally wound around the outer side of the inner container 200; the connecting bracket 4 is disposed under the AC heating tube 3 and is connected to the acceleration heat conduction plate 2; the PCB circuit board 5 is disposed on the connecting bracket 4 and is electrically connected to the DC heating film 1 and the AC heating tube 3; the DC power access group 7 is disposed at the lower rear side of the connecting bracket 4 and is electrically connected to the PCB circuit board 5; the temperature detection group 8 is disposed at the upper middle side of the connecting bracket 4 and extends upward to detect and obtain the liquid temperature inside the inner container 200; the temperature display module 9 is disposed on the front side of the connecting bracket 4 and is electrically connected to the PCB circuit board 5 for displaying the liquid temperature inside the inner container 200 detected by the temperature detection group 8.

[0048] In this embodiment, the rapid heating electric water cup of the present application uses the PCB circuit board 5 as the control center, and is electrically connected to components such as the DC heating film 1, the DC power access group 7, the temperature detection group 8, and the temperature display module 9. Then, through the DC heating film 1 spirally wound around the outer side of the inner container 200, the contact area between the DC heating film 1 and the inner container 200 is increased. That is, when a DC power supply is connected through the DC power access group 7, the heating rate can be further increased at a set heating power, reducing the waiting time of the user.

[0049] Furthermore, the winding pitch β of the DC heating film 1 is equal to the width of the DC heating film 1. The advantage is that the spaced area wound by the DC heating film 1 can be homogenized through the heat diffusion of the DC heating film 1, so as to achieve the heating effect of the entire area around the inner container 200, which is beneficial to improving the heating rate.

[0050] Even further, the DC heating film 1 is preferably a graphene flexible heating film. The advantage is that the graphene flexible heating film has excellent thermal conductivity and low thermal conduction impedance, can achieve rapid heating, thus significantly improving the heating efficiency, and can also bring better energy-saving effects. In addition, the graphene flexible heating film also has excellent flexibility and can be applied to objects of various shapes and sizes. In terms of use safety, the graphene flexible heating film has no open flame and the surface temperature is not high, so it is very safe to use.

[0051] Furthermore, the electric water cup facilitating assembly and production further includes a power switch 10 disposed below the temperature display module 9 and electrically connected to the PCB circuit board 5. Its purpose is to control the on / off of the power supply and meet the usage requirements of turning on or off.

[0052] In this application, the temperature detection group 8 can also be used to monitor and obtain the temperature of the liquid in the inner container 200 in real time, and the temperature display module 9 visually displays it to the user, enabling the user to accurately master the water temperature and avoid overheating or insufficient temperature; and the power switch 10 is set below the temperature display module 9, facilitating the user to perform the switch operation while viewing the temperature, thus improving the user experience.

[0053] Furthermore, the quickly heatable electric water cup further includes an accelerating heat conduction plate 2, an AC heating tube 3, and an AC power access group 6.

[0054] The accelerating heat conduction plate 2 is disposed between the inner container 200 and the connecting bracket 4, and its upper side is integrally welded to the lower side of the inner container 200;

[0055] The AC heating tube 3 is disposed below the accelerating heat conduction plate 2, connected to the connecting bracket 4, and electrically connected to the PCB circuit board 5;

[0056] The AC power access group 6 is disposed above the DC power access group 7 and electrically connected to the PCB circuit board 5.

[0057] In this embodiment, for the quickly heatable electric water cup of this application, the accelerating heat conduction plate 2 is disposed between the inner container 200 and the AC heating tube 3, which helps to quickly and evenly transfer the heat generated by the AC heating tube 3 to the entire bottom of the inner container 200, thereby greatly increasing the heating rate and reducing the waiting time of the user. This also provides an AC heating method adaptable to alternating current for this application. The user can choose to use AC power or DC power for heating according to needs, thus greatly improving the applicability of the quickly heatable electric water cup of this application and further facilitating the user to select the heating method.

[0058] Furthermore, a upwardly convex portion 41 is provided in the middle of the upper side of the connecting bracket 4, and a vertically through - hole 411 for clamping the temperature detection group 8 is opened on the upwardly convex portion 41. The purpose of adopting the vertically through - hole 411 is to quickly clamp the temperature detection group 8.

[0059] Furthermore, a left - front connecting portion 42 is provided on the left - front side of the connecting bracket 4, and a right - front connecting portion 43 is provided on its right - front side;

[0060] A left front wire groove 421 is formed in the left front connection part 42, and a right front wire groove 431 which is symmetrically arranged with the left front wire groove 421 left and right is formed in the right front connection part 43. The right front wire groove 431 and the left front wire groove 421 cooperate to clamp the temperature display module 9.

[0061] An elastic auxiliary positioning member 91 which protrudes forward is arranged on the front side of the temperature display module 9 for elastic auxiliary positioning.

[0062] An upper left convex pressing part 3001 which protrudes upward and a right upper convex pressing part 3002 which is arranged on the right side of the upper left convex pressing part 3001 are arranged on the upper side of the bottom cover 300. The upper left convex pressing part 3001 and the right upper convex pressing part 3002 cooperate to press and limit the temperature display module 9.

[0063] Furthermore, the cup body 100 includes an upper cup body 1001 and a lower cup body 1002 connected to the lower side of the upper cup body 1001. A containing space is formed between the upper cup body 1001 and the lower cup body 1002.

[0064] The bottom cover 300 is arranged on the lower side of the lower cup body 1002 and is connected to the connecting bracket 4.

[0065] In this embodiment, the cup body 100 is designed as the upper cup body 1001 and the lower cup body 1002. The purpose is to first modularly assemble the inner container 200, the DC heating film 1, the heat conduction acceleration disc 2, the AC heating tube 3, the connecting bracket 4, the PCB circuit board 5, the AC power access group 6, the DC power access group 7, the temperature detection group 8, the temperature display module 9, and the power switch 10 to form an integral inner container heating module. Then, the integral inner container heating module is assembled into the upper cup body 1001. Then, the lower cup body 1002 is connected to the upper cup body 1001 by a threaded connection method, so that the integral inner container heating module can be contained in the containing space formed by the upper cup body 1001 and the lower cup body 1002. Finally, the bottom cover 300 and the connecting bracket 4 are connected by a screw connection method, thereby realizing split modular assembly production, greatly improving production efficiency, and saving production costs.

[0066] Furthermore, a power supply circuit 51, a driving circuit 52, and a control circuit 53 are arranged on the PCB circuit board 5.

[0067] The input terminal of the power supply circuit 51 is used to connect to an AC voltage, and the output terminal of the power supply circuit 51 is used to output a DC voltage; the power supply circuit 51 is electrically connected to the drive circuit 52 and the control circuit 53 respectively; the drive circuit 52 is used to drive the DC heating film 1 and / or the AC heating tube 3 to perform heating work or stop heating work; the output terminal of the control circuit 53 is connected to the controlled terminal of the drive circuit 52, and the control circuit 53 is used to output a corresponding control circuit 53 to control the drive circuit 52 to drive the DC heating film 1 and / or the AC heating tube 3 to heat or stop heating.

[0068] In this embodiment, the DC heating film 1 and the AC heating tube 3 can work independently or simultaneously.

[0069] Among them, the power supply circuit 51 may further include a USB input circuit, which uses a PW6606 chip to transfer the power input from the USB interface USB1 and output the power to the power supply terminal of the DC heating film 1.

[0070] In this embodiment, the USB input circuit can also automatically identify the maximum voltage and maximum current output by the adapter by using a PW6606 chip, and adjust the output voltage and current of the USB port according to the identification result to ensure safe and efficient power supply for the device.

[0071] Furthermore, the power supply circuit 51 includes a rectification circuit 511 and a buck circuit 512;

[0072] The rectification circuit 511 is used to connect to the AC voltage;

[0073] The input terminal of the buck circuit 512 is connected to the output terminal of the rectification circuit 511, and the buck circuit 512 is used to step down the rectified AC voltage and output a DC voltage with a preset threshold.

[0074] In this embodiment, the rectification circuit 511 can be connected in a bridge rectification manner to achieve the conversion from AC to DC. The buck circuit 512 uses a transformer to step down the voltage to ensure the stability and accuracy of the output voltage.

[0075] Furthermore, the buck circuit 512 includes a transformer T1, an output rectifier diode D1, and a feedback circuit 5121;

[0076] The primary winding of the transformer T1 is connected to the output terminal of the rectification circuit 511;

[0077] The positive electrode of the output rectifier diode D1 is connected to the first secondary winding of the transformer T1, and the negative electrode of the output rectifier diode D1 outputs a DC voltage with a preset threshold;

[0078] The input end of the feedback circuit 5121 is connected to the output end of the rectification circuit 511, and the output end of the feedback circuit 5121 is connected to the excitation winding of the transformer T1.

[0079] In this embodiment, the feedback circuit 5121 is used to monitor the output voltage in real time and feed back the monitoring result to the excitation winding of the transformer T1, so as to realize the dynamic adjustment of the output voltage. In this way, it can be ensured that even when the grid voltage fluctuates, the output voltage still remains within the set stable range, thus ensuring the heating performance and safety of the instant heating electric water cup. Among them, the feedback circuit 5121 may include a feedback chip IC2, and the voltage is reduced through the resistor R4 and the resistor R5. A diode D2 is connected to the second end of the resistor R5 and is connected to the signal input end of the feedback chip IC2. A resistor R2 is connected between the control end of the feedback chip IC2 and the first end of the excitation winding of the transformer T1.

[0080] In this embodiment, in order to isolate the path between AC and DC and avoid interference between the AC voltage and the DC voltage, the transformer T1 is used to isolate the path between AC and DC, so as to prevent the occurrence of a short circuit between AC and DC and cause electric shock to the user.

[0081] Furthermore, the drive circuit 52 includes a DC drive circuit 521 and an AC drive circuit 522;

[0082] The DC drive circuit 521 is used to output a corresponding DC drive signal under the drive of the control circuit 53 to control the DC heating film 1 to heat or stop heating.

[0083] In this embodiment, the DC drive circuit 521 can adopt PWM (Pulse Width Modulation) technology to control the heating power of the DC heating film 1 by adjusting the pulse width, so as to achieve precise temperature control. In addition, the DC drive circuit 521 also has an overcurrent protection function. When the detected current exceeds the safety threshold, the power supply will be automatically cut off to prevent the heating film from overheating and being damaged or causing danger.

[0084] The AC drive circuit 522 is used to output a corresponding AC drive signal under the drive of the control circuit 53 to control the AC heating tube 3 to heat or stop heating.

[0085] In this embodiment, the AC drive circuit 522 can adopt solid-state relay (SSR) technology or optocoupler technology to control the on / off of the AC power supply by controlling the switching state of the relay or optocoupler, so as to realize the heating control of the AC heating tube 3. The solid-state relay has the advantages of fast response speed, no mechanical wear, long service life, etc., and can effectively improve the reliability and service life of the instant-heating electric water cup.

[0086] Furthermore, the DC drive circuit 521 includes a first switching tube Q1 and a heating film connection terminal CN5;

[0087] A third resistor R10 is connected between the controlled terminal of the first switching tube and the control circuit 53, and a fourth resistor R11 is connected between the controlled terminal and the second conduction terminal of the first switching tube;

[0088] The heating film connection terminal CN5 is used to connect to the DC heating film 1, and the second end of the heating film connection terminal CN5 is connected to the first conduction terminal of the first switching tube Q1;

[0089] In this embodiment, the first switching tube Q1 can adopt MOSFET (Metal Oxide Semiconductor Field Effect Transistor) or IGBT (Insulated Gate Bipolar Transistor). These devices have a low on-resistance and a high switching speed, and can effectively improve the heating efficiency and response speed of the instant-heating electric water cup. By controlling the conduction and cut-off of the first switching tube Q1, precise control of the DC heating film 1 can be achieved. Among them, the heating film connection terminal CN5 is used to provide a stable current path to ensure that the DC heating film 1 can obtain the required drive signal to realize heating.

[0090] Furthermore, the AC drive circuit 522 includes a thyristor output optocoupler IC1 and a thyristor BT1;

[0091] A first resistor R14 is connected between the first controlled terminal of the thyristor output optocoupler IC1 and the output terminal of the control circuit 53, and the second controlled terminal of the thyristor output optocoupler IC1 is connected to the output terminal of the power supply circuit 51;

[0092] A second resistor R15 is directly connected between the controlled terminal of the thyristor BT1 and the output terminal of the thyristor output optocoupler IC1. The first conduction terminal of the thyristor BT1 is used to connect to the AC voltage, and the second conduction terminal of the thyristor BT1 is electrically connected to the AC heating tube 3.

[0093] In this embodiment, the thyristor output optocoupler IC1 can adopt an optocoupler, which has good electrical isolation performance and can effectively isolate the control circuit 53 and the high-voltage part, improving the safety of the system. The signal from the control circuit 53 is received through the control terminal of the optocoupler, and then the conduction and cutoff of the thyristor BT1 are controlled to achieve precise control of the AC heating tube 3.

[0094] In addition, the function of the second resistor R15 is to limit the current of the thyristor BT1 output optocoupler and prevent the optocoupler from being damaged due to excessive current. At the same time, this resistor can also play a certain filtering role to reduce the noise interference in the circuit.

[0095] Furthermore, the accelerating heat conduction plate 2 can be made of high thermal conductivity materials such as silver, copper or aluminum to ensure that heat can be quickly and evenly transferred to the liquid in the inner tank 200.

[0096] Furthermore, a temperature detection circuit 54 is also provided on the PCB circuit board 5. The temperature detection circuit 54 is used to connect to the temperature detection group 8, and the temperature detection circuit 54 is used to obtain the liquid temperature signal and output it to the control circuit 53.

[0097] In this embodiment, the temperature detection group 8 is a temperature sensor, such as an NTC thermistor or a PT1000 temperature sensor, and these sensors have the characteristics of high precision and fast response. The temperature detection circuit 54 is responsible for converting the analog signal collected by the temperature sensor into a digital signal so that the control circuit 53 can process it. By accurately measuring the temperature of the liquid, the temperature detection circuit 54 can monitor the heating process in real time to ensure that the liquid temperature is maintained within the range set by the user. Among them, the temperature detection circuit 54 includes a resistor R6, a resistor R7, a resistor R8 and a resistor R9. The resistor R6 and the resistor R7 form a first voltage dividing bias network, the resistor R8 and the resistor R9 form a second voltage dividing bias network. There is at least one capacitor connected between the common node of the resistor R6 and the resistor R7 and the ground, and there is at least one capacitor connected between the common node of the resistor R8 and the resistor R9 and the ground, and it is connected to the temperature detection group 8 through the terminals CN2 and CN3.

[0098] Optionally, please refer to Figure 17 As shown, the power supply circuit 51 is electrically connected to the drive circuit 52 and the control circuit 53 respectively. Among them, the power supply circuit 51 includes a rectification circuit 511 and a buck circuit 512. Among them, the buck circuit 512 includes a buck chip U1. The drive circuit 52 includes a thyristor SCR1, and there is a resistor R9 connected between the controlled end of the thyristor SCR1 and the control circuit 53.

[0099] In addition, a zero-crossing detection circuit and a voltage detection circuit are also provided on the PCB circuit board. The input end of the zero-crossing detection circuit is connected to the neutral line, and the output end of the zero-crossing detection circuit is connected to the control circuit 53. The input end of the voltage detection circuit is connected to the neutral line, and the output end of the voltage detection circuit is connected to the control circuit 53.

[0100] Among them, the zero-crossing detection circuit includes a resistor R6 and a resistor R4. The first end of the resistor R6 is connected to the control circuit 53, the second end of the resistor R6 is connected to the first end of the resistor R4, and the second end of the resistor R4 is connected to the neutral line.

[0101] Among them, the voltage detection circuit includes a diode D1, a resistor R5, and a resistor R3. The positive electrode of the diode D1 is connected to the control circuit 53, the negative electrode of the diode D1 is connected to the first end of the resistor R5, the second end of the resistor R3 is connected to the first end of the resistor R3, and the second end of the resistor R3 is connected to the neutral line.

[0102] In this embodiment, the power supply circuit 51 can adopt a wide-voltage input mode and perform power conversion through a step-down chip U1, so as to output a stable voltage. Thus, during the process of heating water, no matter how the input voltage changes, the boiling time can be ensured to be consistent, and further the user experience can be effectively guaranteed.

[0103] As described above is an implementation manner provided in combination with specific content, and it is not considered that the specific implementation of this application is only limited to these descriptions. Any implementation similar or identical to the method and structure of this application, or any technical deduction or replacement made under the premise of the concept of this application, should be regarded as the protection scope of this application.

Claims

1. A rapid-heating electric water cup, comprising a cup body (100), an inner liner (200) disposed inside the cup body (100), a bottom cover (300) disposed on the lower side of the cup body (100), and a cup cover (400) disposed on the upper side of the cup body (100), characterized in that, The quick-heating electric water cup further comprises: A DC heating film (1), which is spirally wound around the outside of the inner container (200); A connecting bracket (4), which is arranged on the lower side of the inner container (200); A PCB circuit board (5), which is arranged on the connecting bracket (4) and electrically connected to the DC heating film (1); A DC power supply access group (7), which is arranged at the lower rear side of the connecting bracket (4) and electrically connected to the PCB circuit board (5); A temperature detection group (8), which is arranged on the upper side of the middle part of the connecting bracket (4) and extends upward to detect and obtain the liquid temperature in the inner container (200); A temperature display module (9), which is arranged on the front side of the connecting bracket (4) and electrically connected to the PCB circuit board (5) for displaying the liquid temperature of the inner container (200).

2. The quickly heatable electric water cup according to claim 1, characterized in that, The winding pitch β of the DC heating film (1) is equal to the width of the DC heating film (1).

3. The quickly heatable electric water cup according to claim 1, wherein, The DC heating film (1) is a graphene flexible heating film.

4. The quickly heatable electric water cup according to claim 1, characterized in that, The quick-heating electric water cup further comprises a power switch (10) arranged under the temperature display module (9) and electrically connected to the PCB circuit board (5).

5. The quickly heatable electric water cup according to claim 1, wherein In the middle of the upper side of the connecting bracket (4), there is an upward convex part (41), and a vertically penetrating clamping hole (411) for clamping the temperature detection group (8) is opened on the upward convex part (41).

6. The quickly heatable electric water cup according to claim 1, characterized in that, On the left front side of the connecting bracket (4), there is a left front connecting part (42), and on its right front side, there is a right front connecting part (43); A left front wire groove (421) is opened on the left front connecting part (42), and a right front wire groove (431) symmetrically arranged left and right with the left front wire groove (421) is opened on the right front connecting part (43). The right front wire groove (431) and the left front wire groove (421) cooperate to clamp the temperature display module (9); On the front side of the temperature display module (9), there is an elastic auxiliary positioning part (91) protruding forward for elastic auxiliary positioning; On the upper side of the bottom cover (300), there is an upward convex left upper convex tightening part (3001) and a right upper convex tightening part (3002) arranged on the right side of the left upper convex tightening part (3001); the left upper convex tightening part (3001) and the right upper convex tightening part (3002) cooperate to tightly limit the temperature display module (9).

7. The quickly heatable electric water cup according to claim 6, characterized in that, The cup body (100) comprises an upper cup body (1001) and a lower cup body (1002) connected to the lower side of the upper cup body (1001), and a containing space is formed between the upper cup body (1001) and the lower cup body (1002); The bottom cover (300) is arranged on the lower side of the lower cup body (1002) and is connected to the connecting bracket (4).

Images