Electric thermos bottle

Abstract

The utility model discloses an electric thermos bottle, and relates to the technical field of electric thermos bottles, the electric thermos bottle comprises an inner container, a heating element, a vane pump and a waterproof breathable element, and the inner container is provided with a first water outlet; the heating element is used for heating liquid in the inner container; the vane pump is provided with a second water outlet, and the second water outlet is communicated with the first water outlet through a water outlet channel; the waterproof ventilation piece is arranged on the channel wall of the water outlet channel and used for allowing water vapor generated after the liquid is heated to penetrate through and preventing the liquid from passing through; according to the technical scheme, the water outlet reliability of the electric hot water bottle can be improved.

Description

Technical Field

[0001] This utility model relates to the field of electric water bottle technology, and in particular to an electric water bottle. Background Technology

[0002] Existing electric water heaters use a vane pump to draw water from the inner tank to the outlet. During use, adding water to an empty inner tank can create an air column in the connection between the inner tank and the vane pump. Alternatively, drawing heated water from the inner tank can cause hot water carrying air bubbles to enter the vane pump, filling it with air. This air prevents water from flowing from the inner tank to the vane pump, reducing its suction efficiency and resulting in the vane pump running dry without dispensing water.

[0003] In existing technologies, to solve the problem of the vane pump not producing water when running dry, it is necessary to repeatedly start and stop the water dispensing button, or open the lid of the electric water bottle to release steam after the water boils, or wait for a few minutes. This affects the user experience and is not conducive to eliminating the safety hazards of the electric water bottle. Utility Model Content

[0004] The main purpose of this invention is to provide an electric water bottle that improves the reliability of water dispensing.

[0005] To achieve the above objectives, the electric water bottle proposed in this utility model includes:

[0006] The inner tank is equipped with a first water outlet;

[0007] A heating element for heating the liquid inside the inner tank;

[0008] The vane pump is equipped with a second outlet, which is connected to the first outlet via an outlet channel; and

[0009] A waterproof and breathable component is provided on the channel wall of the water outlet channel to allow water vapor generated after the liquid is heated to pass through while blocking the liquid from passing through.

[0010] In one embodiment, the electric water bottle further includes a water vapor separation box disposed in the water outlet channel, the water vapor separation box being located between the inner liner and the vane pump, and the waterproof and breathable component being disposed in the water vapor separation box.

[0011] In one embodiment, the water vapor separator includes a box body and a box cover. The box body has an inlet and an outlet that are disposed opposite to each other. The box cover and the box body are connected to form a separation chamber that connects the inlet and the outlet. The inlet is connected to the first water outlet, and the outlet is connected to the vane pump.

[0012] The water outlet channel includes the separation chamber, the box cover has a first air outlet communicating with the separation chamber, and the waterproof and breathable component is located at the first air outlet.

[0013] In one embodiment, in the height direction of the water vapor separator, the inlet and the outlet are at least partially offset, and the inlet is located close to the lid.

[0014] In one embodiment, the lid is connected to a baffle rib, which is located on the side of the first air outlet near the inlet, and the free end of the baffle rib extends toward the bottom wall of the box.

[0015] In one embodiment, the projection of the baffle rib covers the inlet on the surface where the inlet is located.

[0016] In one embodiment, the bottom wall of the box body is provided with a flow-diverting rib, which extends toward the box cover and forms a flow-diverting channel between itself and the side wall of the box body.

[0017] In one embodiment, the bleed rib is positioned directly opposite the outlet.

[0018] In one embodiment, the vane pump includes a pump chamber and a water inlet channel. One end of the water inlet channel is connected to the pump chamber, and the other end is connected to the inner liner. One of the pump chamber and the water inlet channel is provided with the waterproof and breathable component.

[0019] In one embodiment, the channel wall of the water inlet channel is provided with a second air outlet, and the waterproof and breathable component is disposed at the second air outlet.

[0020] In one embodiment, the vane pump includes a pump cover on which the water inlet channel is provided.

[0021] In one embodiment, the waterproof and breathable component is configured as a waterproof and breathable membrane.

[0022] In one embodiment, the heating element is connected to the inner liner.

[0023] In the technical solution of this utility model, a waterproof and breathable component is provided on the channel wall of the water outlet channel. When the liquid carrying gas flows through the water outlet channel, the waterproof and breathable component allows the gas to pass through and blocks the liquid from passing through. The gas passes through the waterproof and breathable component to the outside atmosphere, while the liquid flows from the inner tank to the vane pump and is drawn out of the electric water bottle by the vane pump. In this way, the gas in the vane pump can be effectively removed before the vane pump starts and during operation, ensuring that the liquid in the inner tank flows smoothly to the vane pump. At the same time, the pressure at the pump inlet is effectively reduced, which is conducive to improving the suction efficiency of the vane pump, thereby improving the reliability of the water output of the electric water bottle. Attached Figure Description

[0024] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0025] Figure 1 A schematic diagram of the structure of an embodiment of the electric water bottle provided by this utility model;

[0026] Figure 2 for Figure 1 Cross-sectional view of the gas-liquid separator;

[0027] Figure 3 for Figure 1 Top view of the gas-liquid separator box;

[0028] Figure 4 A schematic diagram of another embodiment of the electric water bottle provided by this utility model;

[0029] Figure 5 for Figure 4 Schematic diagram of a medium-blade pump;

[0030] Figure 6 for Figure 5 Explosion diagram of a medium-blade pump.

[0031] Explanation of icon numbers:

[0032] 10. Inner liner;

[0033] 20. Heating element;

[0034] 30. Vane pump; 31. Pump cover; 32. Second air outlet;

[0035] 40. Waterproof and breathable components;

[0036] 50. Gas-liquid separator box; 51. Box body; 511. Inlet; 512. Outlet; 52. Box cover; 521. First gas outlet; 53. Separation chamber; 54. Baffle rib; 55. Baffle rib; 56. Diversion channel;

[0037] 60. Water outlet device;

[0038] 71. Inlet pipe; 72. Outlet pipe.

[0039] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0040] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.

[0041] It should be noted that if the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indicators will also change accordingly.

[0042] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the use of "and / or" or "and / or" throughout the text includes three parallel solutions. For example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0043] Existing electric water heaters use a vane pump to draw water from the inner tank to the outlet. During use, adding water to an empty inner tank can create an air column in the connection between the inner tank and the vane pump. Alternatively, drawing heated water from the inner tank can cause hot water carrying air bubbles to enter the vane pump, filling it with air. This air prevents water from flowing from the inner tank to the vane pump, reducing its suction efficiency and resulting in the vane pump running dry without dispensing water.

[0044] In existing technologies, to solve the problem of the vane pump not producing water when running dry, it is necessary to repeatedly start and stop the water dispensing button, or open the lid of the electric water bottle to release steam after the water boils, or wait for a few minutes. This affects the user experience and is not conducive to eliminating the safety hazards of the electric water bottle.

[0045] To solve this technical problem, this utility model proposes an electric water bottle.

[0046] Please see Figures 1 to 6In one embodiment of this utility model, the electric water bottle includes an inner liner 10, a heating element 20, a vane pump 30, and a waterproof and breathable component 40. The inner liner 10 is provided with a first water outlet; the heating element 20 is used to heat the liquid inside the inner liner 10; the vane pump 30 is provided with a second water outlet, which is connected to the first water outlet through a water outlet channel; the waterproof and breathable component 40 is disposed on the channel wall of the water outlet channel to allow water vapor generated after the liquid is heated to pass through while blocking the liquid from passing through; thereby improving the water dispensing reliability of the electric water bottle.

[0047] In the technical solution of this utility model, a waterproof and breathable component 40 is provided on the channel wall of the water outlet channel. When the liquid carrying gas flows through the water outlet channel, the waterproof and breathable component 40 allows the gas to pass through and blocks the liquid from passing through. The gas passes through the waterproof and breathable component 40 to the outside atmosphere, and the liquid flows from the inner tank 10 to the vane pump 30 and is drawn out of the electric water bottle by the vane pump 30. In this way, the gas in the vane pump 30 can be effectively removed before the vane pump 30 starts and during operation, ensuring that the liquid in the inner tank 10 flows smoothly to the vane pump 30. At the same time, the pressure at the pump inlet is effectively reduced, which is conducive to improving the suction efficiency of the vane pump 30, thereby improving the reliability of the water output of the electric water bottle.

[0048] Specifically, the vane pump 30 can be connected to the water outlet device 60 via the water outlet pipe 72. When the user is using the electric water bottle, the user can place the container for holding liquids such as water under the water outlet device 60. Then, under the pumping of the vane pump 30, the liquid in the inner tank 10 passes through the vane pump 30 and the water outlet pipe 72 in sequence, and then flows out of the water outlet device 60 and into the container.

[0049] It should be noted that the heating element 20 is used to heat the liquid inside the inner liner 10. This does not specifically mean that the heating element 20 is directly inserted into the inner liner 10 to heat the liquid inside. Alternatively, the heating element 20 can be located outside the inner liner 10 and heat the liquid flowing out from the outlet of the inner liner 10.

[0050] Specifically, the heating element 20 can be located inside the inner tank 10, or on the outer surface of the inner tank 10. Alternatively, the heating element 20 may not be directly connected to the inner tank 10; for example, it could be located in the water outlet pipe connected to the water outlet of the inner tank 10 to heat the water flowing from the inner tank 10 into that water outlet pipe. It can be understood that the heating element 20, regardless of its location, can heat and boil the liquid inside the inner tank 10, thus meeting the user's hot water needs.

[0051] In this embodiment, the heating element 20 is connected to the inner liner 10. The inner liner 10 has a first water outlet, specifically located at the bottom of the inner liner 10, to ensure that the water inside the inner liner 10 flows out completely. Since the first water outlet is connected to the second water outlet through the water outlet channel, the liquid inside the inner liner 10 can flow out from the first water outlet and through the water outlet channel to the second water outlet, and then out of the vane pump 30. In this process, the water outlet channel can be composed of at least the internal channel of the water inlet pipe 71 connected between the inner liner 10 and the vane pump 30, and the pump chamber of the vane pump 30. With the setting of the waterproof and breathable component 40, the normal operation of the vane pump 30 is ensured, thereby improving the water output reliability of the electric water bottle.

[0052] The waterproof and breathable component 40 is installed on the channel wall of the water outlet channel. Specifically, a corresponding air outlet can be opened on the channel wall of the water outlet channel, and the waterproof and breathable component 40 can be fixed and covered to facilitate the passage of gas through the waterproof and breathable component 40.

[0053] Optionally, in an embodiment of this utility model, the waterproof and breathable component 40 is configured as a waterproof and breathable membrane, that is, using a novel polymer waterproof material that can withstand a certain pressure. Furthermore, because water vapor particles are smaller than liquid particles, water vapor can smoothly permeate from the inside of the water outlet channel to the outside, achieving exchange with the external atmosphere. Simultaneously, it prevents water molecules from permeating out of the water outlet channel through the waterproof and breathable membrane. Thus, while reducing the amount of gas in the water outlet channel, it ensures the amount of liquid in the water outlet channel, thereby meeting the user's water usage needs. However, in other embodiments, the waterproof and breathable component 40 may adopt a labyrinthine channel design or a stepped water-blocking design.

[0054] Please see Figures 1 to 3 In an embodiment of this utility model, the electric water bottle further includes a water vapor separation box disposed in the water outlet channel. The water vapor separation box is located between the inner liner 10 and the vane pump 30. The waterproof and breathable component 40 is disposed in the water vapor separation box. It can be understood that the inner liner 10 and the vane pump 30 are connected through a water inlet pipe 71. At this time, the water inlet pipe 71 is divided into two sections and is disposed on both sides of the water vapor separation box to ensure the connection between the water vapor separation box and the inner liner 10 and the vane pump 30. The liquid in the inner liner 10 is heated by the heating element 20 to generate a portion of the water vapor. Water vapor, liquid, and water vapor (collectively referred to as liquid mixture) flow into the water vapor separation box through the water inlet pipe 71. The liquid mixture is separated into water vapor and liquid in the water vapor separation box. At this time, the water vapor is released through the waterproof vent 40, and the liquid enters the vane pump 30 through the water inlet pipe 71 and flows to the water outlet device 60. In this process, the water vapor separation box integrates functions such as water inlet, water outlet, water vapor separation, and venting, achieving integration. At the same time, it effectively reduces the pressure at the pump inlet and improves the suction efficiency of the vane pump 30, thereby improving the reliability of water output from the electric water bottle.

[0055] Specifically, in an embodiment of this utility model, the water vapor separator includes a box body 51 and a box cover 52. The box body 51 has an inlet 511 and an outlet 512 arranged opposite to each other. The box cover 52 and the box body 51 are connected to form a separation chamber 53 that connects the inlet 511 and the outlet 512. The inlet 511 is connected to the first water outlet, and the outlet 512 is connected to the vane pump 30. The box body 51 has an upward-facing opening, and the box cover 52 is placed over the opening. The box body 51 and the box cover 52 are sealed together to ensure the airtightness of the water vapor separator. Liquid extraction is achieved only through the connection between the inlet 511 and the outlet 512 and other devices.

[0056] The water outlet channel includes the separation chamber 53. The cover 52 has a first air outlet 521 that communicates with the separation chamber 53. The waterproof and breathable component 40 is disposed at the first air outlet 521. It can be understood that the waterproof and breathable component 40 is disposed on the top wall of the separation chamber 53 to facilitate the use of the gas's floating property to allow gas to overflow from the top of the water vapor separation box. The waterproof and breathable component 40 covers the first air outlet 521. When the waterproof and breathable component 40 is configured as a waterproof and breathable membrane, it can be disposed inside the first air outlet 521, or connected to the side of the cover 52 away from the separation chamber 53, or connected to the side of the cover 52 facing the separation chamber 53. The connection method between the waterproof and breathable component 40 and the first air outlet 521 includes, but is not limited to, hot melt welding and ultrasonic welding.

[0057] Please see Figure 2 In this embodiment of the invention, in the height direction of the water vapor separator, the inlet 511 and the outlet 512 are at least partially offset, and the inlet 511 is located close to the cover 52. In this case, the inlet 511 is at least partially higher than the outlet 512, and there is a height difference between it and the bottom wall of the box body 51. This allows the liquid flowing into the separation chamber 53 to be thrown out through the inlet 511 and fall onto the bottom wall of the box body 51. This process can separate liquid and water vapor to a certain extent, improving the gas-liquid separation effect of the gas-liquid separator 50. The outlet 512 is close to the bottom wall of the box body 51, allowing the sinking liquid to flow out through the outlet 512, reducing the gas content of the liquid flowing out of the gas-liquid separator 50, and improving the operational reliability of the vane pump 30. The height direction of the water vapor separator is from the cover 52 towards the box body 51. However, in other embodiments, the inlet 511 and the outlet 512 are completely offset in the height direction of the water vapor separator.

[0058] Furthermore, in an embodiment of this utility model, the lid 52 is connected to a baffle 54, which is located on the side of the first air outlet 521 near the inlet 511. The free end of the baffle 54 extends toward the bottom wall of the box body 51. This arrangement allows for impact separation of the liquid flowing into the separation chamber 53 from the inlet 511. It is understood that the baffle 54, connected to the lid 52 and located on the side of the first air outlet 521 near the inlet 511, serves two purposes: firstly, during the liquid's entry into the separation chamber 53, the baffle 54 prevents the liquid from being thrown toward the first air inlet; secondly, because the free end of the baffle 54 extends toward the bottom wall of the box body 51, when the liquid enters the separation chamber 53, it will disperse into small droplets upon impacting the surface of the baffle 54 facing the inlet 511, facilitating the detachment of air bubbles and achieving further gas-liquid separation. The baffle 54 and the lid 52 can be fixed as a whole by welding, integral molding, or other methods.

[0059] Specifically, in the embodiments of this utility model, on the surface where the inlet 511 is located, the projection of the baffle 54 covers the inlet 511, that is, the baffle 54 is located on the liquid ejection path, so that before the liquid falls toward the bottom wall of the box 51, the liquid will hit the baffle 54 and disperse into small droplets, thereby improving the gas-liquid separation effect.

[0060] After being thrown down and impacting the baffle 54, the liquid sinks to the bottom of the water vapor separation box, while the separated water vapor gathers at the top of the water vapor separation box and passes through the waterproof and breathable component 40. In order to further improve the separation effect of the gas-liquid separation box 50, in this embodiment of the utility model, the bottom wall of the box body 51 is provided with a baffle 55. The baffle 55 extends toward the box cover 52 and forms a diversion channel 56 between it and the side wall of the box body 51. On the one hand, as the liquid at the bottom of the water vapor separation box flows toward the outlet 512, the baffle 55 is located on the path of the liquid flowing toward the outlet 512. The liquid impacts the baffle 55, causing the air bubbles carried by the liquid to detach from the liquid and gather at the top of the water vapor separation box, and then pass through the waterproof and breathable component 40. On the other hand, a certain distance is left between the baffle 55 and the side wall of the box body 51 to form a diversion channel 56, ensuring that the liquid can flow smoothly toward the outlet 512. The baffle 55 and the box 51 can be fixed into a whole by welding, integral molding or other methods.

[0061] Specifically, in this embodiment of the invention, the baffle ribs 55 are positioned close to and directly opposite the outlet 512, effectively reducing the possibility of flow towards the outlet 512 without impacting the baffle ribs 55, thus reliably ensuring gas-liquid separation of the gas-liquid separation box 50. However, in other embodiments, multiple baffle ribs 55 are provided, and at least some of the baffle ribs 55 form a flow diversion channel 56 with the side wall of the box body 51, and at least some of the baffle ribs 55 form flow diversion channels 56 between themselves.

[0062] Please see Figures 4 to 6 In an embodiment of this utility model, the vane pump 30 includes a pump chamber and a water inlet channel. One end of the water inlet channel is connected to the pump chamber, and the other end is connected to the inner liner 10. One of the pump chamber and the water inlet channel is provided with the waterproof and breathable component 40. It can be understood that multiple vanes are provided in the pump chamber. When the vane pump 30 is working, the vanes rotate and provide power to the liquid to flow to the water outlet device 60, thereby realizing the water outlet of the electric water bottle. The vane pump 30 includes a water inlet channel and a pump chamber. By providing the waterproof and breathable component 40 on the channel wall of the water inlet channel and / or the cavity wall of the pump chamber, the gas in the water inlet channel and / or the gas in the pump chamber can be discharged, ensuring the suction efficiency of the vane pump 30 and improving the water outlet reliability of the electric water bottle.

[0063] The water vapor separator box with a waterproof and breathable component 40, which is integrated with the vane pump 30, combines water vapor separation and venting functions. The liquid mixture flowing through the water vapor separator box is first separated into water vapor and liquid, and the water vapor is released through the waterproof and breathable component 40 of the water vapor separator box, reducing the gas content of the liquid flowing to the vane pump 30. At the same time, it effectively reduces the pressure at the pump inlet and improves the suction efficiency of the vane pump 30. When the liquid flows through the water inlet channel and the pump chamber, the centrifugal force generated by the rotation of the vanes can further separate the gas in the liquid and release the gas through the waterproof and breathable component 40 of the vane pump 30, further improving the suction efficiency of the vane pump 30, thereby improving the water output reliability of the electric water bottle.

[0064] See also Figures 5 to 6 In an embodiment of this utility model, the channel wall of the water inlet channel is provided with a second air outlet 32, and the waterproof and breathable component 40 is provided at the second air outlet 32. This can reduce the impact on the displacement and head of the vane pump 30 to a certain extent, thereby ensuring the performance of the vane pump 30 and exhausting the gas carried by the liquid before entering the pump chamber, improving the working efficiency of the vane pump 30, and thus improving the reliability of water output from the electric water bottle.

[0065] Specifically, in an embodiment of this utility model, the vane pump 30 includes a pump cover 31, on which the water inlet channel is provided. The pump cover 31 includes a cover portion forming a pump cavity with the pump head, and a connecting portion connected to the cover portion. The connecting portion contains the water inlet channel, and a second vent 32 is opened in the channel wall of the water inlet channel. This reduces the risk of performance degradation of the vane pump 30 due to the second vent 32 being directly located on the cavity wall of the pump cavity, improving the working efficiency of the vane pump 30 and thus enhancing the reliability of water output from the electric water bottle. The connection method between the waterproof and breathable component 40 and the second vent 32 includes, but is not limited to, hot-melt welding and ultrasonic welding.

[0066] The above description is merely an exemplary embodiment of the present utility model and does not limit the patent scope of the present utility model. Any equivalent structural transformations made based on the technical concept of the present utility model and the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.

Claims

1. An electric water heater, characterized in that, include: The inner tank is equipped with a first water outlet; A heating element for heating the liquid inside the inner tank; The vane pump is equipped with a second outlet, which is connected to the first outlet through an outlet channel. as well as A waterproof and breathable component is provided on the channel wall of the water outlet channel to allow water vapor generated after the liquid is heated to pass through while blocking the liquid from passing through.

2. The electric water bottle as described in claim 1, characterized in that, The electric water bottle also includes a water vapor separation box disposed in the water outlet channel. The water vapor separation box is located between the inner liner and the vane pump, and the waterproof and breathable component is disposed in the water vapor separation box.

3. The electric water bottle as described in claim 2, characterized in that, The water vapor separator includes a box body and a box cover. The box body has an inlet and an outlet that are arranged opposite to each other. The box cover and the box body are connected to form a separation chamber that connects the inlet and the outlet. The inlet is connected to the first water outlet, and the outlet is connected to the vane pump. The water outlet channel includes the separation chamber, the box cover has a first air outlet communicating with the separation chamber, and the waterproof and breathable component is located at the first air outlet.

4. The electric water bottle as described in claim 3, characterized in that, In the height direction of the water vapor separator, the inlet and the outlet are at least partially offset, and the inlet is located close to the cover.

5. The electric water bottle as described in claim 3, characterized in that, The lid is connected to a baffle rib, which is located on the side of the first air outlet near the inlet, and the free end of the baffle rib extends toward the bottom wall of the box.

6. The electric water bottle as described in claim 5, characterized in that, On the surface where the inlet is located, the projection of the retaining rib covers the inlet.

7. The electric water bottle as described in claim 3, characterized in that, The bottom wall of the box is provided with baffles, which extend toward the box cover and form a flow diversion channel with the side wall of the box.

8. The electric water bottle as described in claim 7, characterized in that, The bleed ribs are positioned directly opposite the outlet.

9. The electric water bottle as described in claim 1 or 2, characterized in that, The vane pump includes a pump chamber and a water inlet channel. One end of the water inlet channel is connected to the pump chamber, and the other end is connected to the inner liner. One of the pump chamber and the water inlet channel is provided with the waterproof and breathable component.

10. The electric water bottle as described in claim 9, characterized in that, The water inlet channel has a second air outlet in its channel wall, and the waterproof and breathable component is located at the second air outlet.

11. The electric water bottle as described in claim 10, characterized in that, The vane pump includes a pump cover, on which the water inlet channel is provided.

12. The electric water bottle as described in claim 1, characterized in that, The waterproof and breathable component is configured as a waterproof and breathable membrane; And / or, the heating element is connected to the inner liner.

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