Instant water heater

Abstract

The utility model relates to an instant water heater which comprises an inner container installed in a shell, and the side edge of the top and the side edge of the bottom of the inner container are provided with a water outlet and a water inlet which are communicated with the outer side of the shell respectively. A flow guide channel connected with the water inlet is arranged at the bottom of the inner side of the inner container, the tail end of the flow guide channel is integrally formed, communicated and fixedly connected with a corresponding flow divider, a first through hole communicated with the outer side of the inner container is formed in the bottom of the flow divider, and at least one second through hole communicated with the interior of the inner container is formed in the side edge of the flow divider. The touch mechanism is installed below the outer side of the inner container and located above the microswitch, and the touch mechanism is connected with the outer side wall of the inner container to form a containing cavity which is communicated with the second through hole and has the telescopic and deformable capacity; when water enters, water flows into the containing cavity, so that the containing cavity deforms and expands and presses and touches the microswitch, and the heating assembly works. According to the utility model, heating is realized when water enters, the heating efficiency is improved, and the triggering sensitivity is improved; and moreover, the condition of water-free dry burning is effectively avoided, and the practical effect is improved.

Description

Technical Field

[0001] This utility model relates to the field of water heater technology, specifically to an instant water heater. Background Technology

[0002] An instantaneous electric water heater is a type of water heater that uses electronic heating elements to quickly heat running water and can control water temperature, flow rate, and power through circuitry to achieve a suitable bathing temperature. Generally, water and electricity switches on water heaters are controlled separately. When a user finishes showering and wants to turn off the water heater, they need to turn off the water supply first and then disconnect the power, which is inconvenient. Some users, for convenience, directly disconnect the power but forget to turn off the water supply, causing excessive water pressure in the water tank and potentially damaging the heater; others only turn off the water supply and forget to disconnect the power, resulting in wasted electricity.

[0003] Therefore, the research objective of this utility model is to design an instant water heater that uses the deformation and expansion of the water inlet cavity to trigger a micro switch, thereby starting the heating assembly to achieve instant hot water upon water intake. When the water inlet cavity is empty or the water volume is too low, the micro switch resets to cut off the power supply to the heating assembly. This design achieves energy savings, a compact structure, and improved heating efficiency. Utility Model Content

[0004] In view of the technical problems existing in the prior art, the present invention provides an instant water heater that can effectively solve the technical problems existing in the prior art.

[0005] The technical solution of this utility model is:

[0006] An instantaneous water heater includes:

[0007] shell;

[0008] The inner liner is installed inside the outer shell, and its top and bottom sides are respectively provided with an outlet and an inlet that connect to the outside of the outer shell; the bottom inner side of the inner liner is provided with a flow guide channel that connects to the inlet, and the end of the flow guide channel is integrally formed and fixedly connected to a corresponding flow divider. The bottom of the flow divider is provided with a first through hole that connects to the outside of the inner liner, and its side is provided with at least one second through hole that connects to the inside of the inner liner;

[0009] A heating assembly, installed inside the inner tank, is used to heat the water inside the inner tank;

[0010] A micro switch is electrically connected to the heating assembly, and the micro switch is installed inside the housing below the inner liner;

[0011] An actuation mechanism is installed on the lower outer side of the inner liner and above the micro switch. The actuation mechanism is connected to the outer wall of the inner liner to form a receptacle that communicates with the second through hole and has a capacity that can expand and contract. When water enters, the water flows into the receptacle, causing the receptacle to deform and expand, and press against the micro switch.

[0012] The triggering mechanism includes a rubber component sealed and fixed to the outer wall of the inner liner, and a triggering assembly installed between the rubber component and the micro switch mechanism. The rubber component and the outer wall of the inner liner are spaced apart to form the receiving cavity. When the receiving cavity is filled with water and expands outward, the rubber component pushes the triggering assembly downward, and the triggering assembly moves down to press and activate the micro switch.

[0013] The bottom outer wall of the inner liner is recessed inward and has a corresponding groove. The groove is fitted with a corresponding inserting ring groove by means of an integrally formed protruding edge. The edge of the rubber part is integrally formed with a corresponding protruding ring. The protruding ring is embedded in the inserting ring groove and the rubber part is sealed and fixedly installed at the opening of the groove by a fixing ring pressed on the outside of the protruding ring.

[0014] The trigger assembly includes a micro switch cap and a micro switch element that are sleeved on top and bottom. The micro switch cap is installed through the middle through hole of the fixing ring and its top abuts against the lower side of the middle of the rubber element. The micro switch element is movably sleeved on the positioning rod and a corresponding elastic element is connected between the lower end face of the micro switch element and the positioning rod. The elastic element is sleeved on the inner side of the positioning rod. The positioning rod is fixedly installed on the outer shell and the micro switch is abutted against the lower part of the micro switch element.

[0015] The micro switch comprises a central cylindrical component and an integrally formed ring fixed to the outside of the cylindrical component. The cylindrical component extends upward and is fitted inside the micro switch cap, and extends downward and covers the positioning rod. The outer side wall of the positioning rod and the inner side wall of the micro switch cap are configured with matching limiting chamfers. The top of the cylindrical component is closed and has a limiting groove for limiting the micro switch cap by recessing the upper end face.

[0016] The bottom of the housing is provided with a corresponding drain hole. The end of the positioning rod passes through the drain hole downward and extends to the outside of the housing. The drain hole of the housing is detachably fastened with a corresponding locking component by the positioning rod.

[0017] The rubber part has at least one integrally formed recessed fold.

[0018] The inlet and outlet of the inner tank are both horizontally arranged. The inlet and outlet are sealed by corresponding sealing rings and are detachably equipped with corresponding inlet and outlet pipes. The inlet pipe is arranged in a straight line or an L-shape.

[0019] Advantages of this utility model:

[0020] 1) This utility model provides a flow channel connecting to the water inlet below the inner tank of the heater, and a diverter at the end of the flow channel. A second through hole connecting to the inner tank is provided on the side of the diverter, and a first through hole connecting to the receiving cavity is provided at the bottom of the diverter. Water flows through the flow channel and first enters the receiving cavity below the inner tank through the first through hole. After the receiving cavity is filled with water, it deforms and expands downward, thereby pressing and triggering the micro switch to turn on the heating assembly for heating. Water is added to the inner tank only after the receiving cavity is filled. This not only achieves heating as soon as water is added, improving heating efficiency and the sensitivity of the water inlet micro switch, but also prevents the micro switch from starting when there is no water in the receiving cavity or too little water, i.e., when there is no water in the inner tank. This effectively avoids the situation of dry burning without water and improves the practical effect of this utility model.

[0021] 2) The micro switch mechanism of this utility model consists of a rubber part and a touch component set on the outer side of the inner liner. The rubber part and the outer wall of the inner liner form a corresponding receiving cavity and the rubber part is fixed by a fixing ring to ensure the sealing of the receiving cavity. The rubber part is expanded outward by water injection, which pushes the touch component to move down to press the micro switch to realize the heating. The touch component is positioned by a positioning rod and reset by an elastic element to realize up and down movement.

[0022] 3) The rubber component of this invention is embedded in a groove on the outer shell by an integrally molded convex ring and fixed by a fixing ring to form a sealed receiving cavity. The receiving cavity is positioned in the direction of water flow. When the receiving cavity is filled with water, it triggers the micro switch, and water immediately enters the inner tank for heating. The equipment structure is more compact, and the water inlet heating is more sensitive and rapid. At least one integrally molded recessed fold is provided on the rubber component, thus providing sufficient expansion and contraction for water filling and expansion, and sufficient expansion degree to push the trigger component downward.

[0023] 4) By setting up the flow channel, this utility model can achieve horizontal or vertical water inlet regardless of whether the water inlet pipe is set in a straight line or an L-shape, thus improving the applicability and applicable environment of this utility model. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the structure of this utility model.

[0025] Figure 2 for Figure 1 A top-down view.

[0026] Figure 3 for Figure 2 Sectional view of AA.

[0027] Figure 4 This is a cross-sectional view of the inner liner.

[0028] Figure 5 This is a cross-sectional schematic diagram of the triggering mechanism.

[0029] Figure 6 This is a structural schematic diagram of Embodiment 2 of the present invention.

[0030] Figure 7 for Figure 6 A cross-sectional diagram.

[0031] In the attached diagram: 1. Outer shell; 2. Inner liner; 3. Flow channel; 5. First through hole; 4. Second through hole; 6. Heating assembly; 7. Micro switch; 8. Receiving cavity; 9. Touch assembly; 9. Micro switch cap; 901. Micro switch component; 902. Cylinder component; 9021. Ring component; 9022. Rubber component; 10. Convex ring; 1001. Fixing ring component; 11. Positioning rod; 12. Locking component; 13. Water inlet pipe; 14. Water outlet pipe; 15. Elastic component; 16. Detailed Implementation

[0032] To facilitate understanding by those skilled in the art, the structure of this utility model will now be described in further detail with reference to the accompanying drawings:

[0033] Example 1

[0034] refer to Figure 1-5 An instantaneous water heater, comprising:

[0035] Outer shell 1;

[0036] The inner liner 2 is installed inside the outer shell 1, and its top and bottom sides are respectively provided with an outlet and an inlet that connect to the outside of the outer shell 1; the inner bottom of the inner liner 2 is provided with a guide channel 3 that connects to the inlet, and the end of the guide channel 3 is integrally formed and fixedly connected to a corresponding diverter. The bottom of the diverter is provided with a first through hole 5 that connects to the outside of the inner liner 2, and its side is provided with at least one second through hole 4 that connects to the inside of the inner liner 2.

[0037] Heating assembly 6 is installed inside the inner tank 2 and is used to heat the water inside the inner tank 2;

[0038] Micro switch 7 is electrically connected to the heating assembly 6. The micro switch 7 is installed inside the outer casing 1 below the inner liner 2.

[0039] An actuation mechanism is installed on the lower outer side of the inner liner 2 and above the micro switch 7. The actuation mechanism is connected to the outer wall of the inner liner 2 to form a receptacle 8 that communicates with the second through hole 4 and has a retractable capacity. When water enters, the water flows into the receptacle 8, causing the receptacle 8 to deform and expand, and press against the micro switch 7.

[0040] This invention features a flow channel 3 connected to the water inlet below the inner tank 2 of the heater, with a diverter at the end of the flow channel 3. A second through-hole connecting to the inner tank 2 is located on the side of the diverter, and a first through-hole connecting to the receiving cavity 8 is located at the bottom of the diverter. Water flows through the flow channel 3 and first enters the receiving cavity 8 below the inner tank 2 through the first through-hole. Once the receiving cavity 8 is filled with water, it deforms and expands downwards, pressing and triggering the microswitch 7 to activate the heating assembly 6 for heating. Furthermore, water is introduced into the inner tank 2 only after the receiving cavity 8 is filled. This not only achieves immediate heating upon water intake, improving heating efficiency and the sensitivity of the water inlet microswitch, but also prevents the microswitch 7 from activating when there is no water in the receiving cavity 8 or too little water (i.e., when there is no water in the inner tank 2), effectively avoiding dry burning and enhancing the practical effect of this invention.

[0041] The actuation mechanism includes a rubber component 10 sealed and fixed to the outer wall of the inner liner 2, and an actuation component 9 installed between the rubber component 10 and the micro switch mechanism. The rubber component 10 and the outer wall of the inner liner 2 are spaced apart to form the receiving cavity 8. When the receiving cavity 8 is filled with water and expands outward, the rubber component 10 pushes the actuation component 9 downward, and the actuation component 9 moves down to press and activate the micro switch 7.

[0042] The micro switch mechanism of this utility model consists of a rubber part 10 and a trigger component 9 disposed on the outer side of the inner liner 2. The rubber part 10 and the outer wall of the inner liner 2 form a corresponding receiving cavity 8 and the rubber part 10 is fixed by a fixing ring 11 to ensure the sealing of the receiving cavity 8. When water is introduced, the rubber part 10 is squeezed to expand outward, thereby pushing the trigger component 9 to move down to press the micro switch 7 to realize the heating. The trigger component 9 is positioned by a positioning rod 12 and reset by an elastic element 16 to realize up and down movement.

[0043] The bottom outer wall of the inner liner 2 is recessed inward and has a corresponding groove. The groove is fitted with a corresponding inserting ring groove by means of an integrally formed protruding edge. The edge of the rubber part 10 is integrally formed with a corresponding protruding ring 1001. The protruding ring 1001 is embedded in the inserting ring groove and the rubber part 10 is sealed and fixedly installed at the opening of the groove by means of a fixing ring 11 pressed on the outside of the protruding ring 1001.

[0044] At least one integrally formed recessed fold is provided on the rubber part 10.

[0045] In this invention, the rubber component 10 is embedded in a groove on the outer shell 1 by an integrally formed convex ring 1001 and fixed by a fixing ring 11 to form a sealed receiving cavity 8. The receiving cavity 8 is positioned in the direction of water flow. When the receiving cavity 8 is filled with water, it triggers the micro switch 7, and water immediately enters the inner tank 2 for heating. The device structure is more compact, and the water inlet heating is more sensitive and rapid. At least one integrally formed recessed fold on the rubber component 10 provides sufficient expansion and contraction for water filling, and sufficient expansion to push the trigger component 9 downward.

[0046] The actuation component 9 includes a micro switch cap 901 and a micro switch element 902 that are sleeved vertically. The micro switch cap 901 is installed through the middle through hole of the fixing ring 11, and its top abuts against the lower middle side of the rubber component 10. The micro switch element 902 is movably sleeved on the positioning rod 12, and a corresponding elastic element 16 is connected between the lower end face of the micro switch element 902 and the positioning rod 12. The elastic element 16 is sleeved on the inner side of the positioning rod 12. The positioning rod 12 is fixedly installed on the outer shell 1, and the micro switch 7 is abutted and installed below the micro switch element 902.

[0047] The micro switch 902 includes a central cylindrical component 9021 and an integrally formed ring 9022 fixed to the outside of the cylindrical component 9021. The cylindrical component 9021 extends upward and is sleeved inside the micro switch cap 901, and extends downward and covers the positioning rod 12. The outer side wall of the positioning rod 12 and the inner side wall of the micro switch cap 901 are configured with matching limiting chamfers. The top of the cylindrical component 9021 is closed and has a limiting groove for limiting the micro switch cap 901 by being recessed inward at the upper end.

[0048] The bottom of the outer casing 1 is provided with a corresponding drainage hole. The end of the positioning rod 12 passes through the drainage hole downward and extends to the outside of the outer casing 1. The drainage hole of the outer casing 1 is detachably fastened with a corresponding locking member 13 by the positioning rod 12.

[0049] The inlet and outlet of the inner liner 2 are both arranged horizontally. The inlet and outlet are sealed by corresponding sealing rings and are detachably equipped with corresponding inlet pipes 14 and outlet pipes 15. The inlet pipe 14 is arranged in a straight line.

[0050] Example 2

[0051] refer to Figure 6-7 The difference between this embodiment and Embodiment 1 is that the water inlet pipe 14 is arranged in an L-shape.

[0052] This utility model, through the setting of the flow guide channel 3, can achieve horizontal or vertical water inlet regardless of whether the water inlet pipe 14 is set in a straight line or an L-shape, thus improving the applicability and applicable environment of this utility model.

[0053] It should be noted that this embodiment is implemented in the same way as embodiment one in terms of principle and technical effect. For the sake of brevity, any parts not mentioned in this embodiment can be referred to the corresponding content in embodiment one.

[0054] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. An instantaneous water heater, characterized in that, include: Outer shell (1); The inner liner (2) is installed inside the outer shell (1), and its top and bottom sides are respectively provided with an outlet and an inlet that connect to the outside of the outer shell (1); the inner bottom of the inner liner (2) is provided with a guide channel (3) that connects to the inlet, and the end of the guide channel (3) is integrally formed and connected to a corresponding diverter. The bottom of the diverter is provided with a first through hole (5) that connects to the outside of the inner liner (2), and its side is provided with at least one second through hole (4) that connects to the inside of the inner liner (2); The heating assembly (6) is installed inside the inner tank (2) and is used to heat the water inside the inner tank (2); A micro switch (7) is electrically connected to the heating assembly (6), and the micro switch (7) is installed inside the outer casing (1) below the inner liner (2); The triggering mechanism is installed on the lower outer side of the inner liner (2) and above the micro switch (7). The triggering mechanism is connected to the outer wall of the inner liner (2) to form a receptacle (8) that communicates with the second through hole (4) and has a capacity that can expand and contract. When water enters, the water flows into the receptacle (8), causing the receptacle (8) to deform and expand and press against the micro switch (7).

2. The instantaneous water heater according to claim 1, characterized in that, The actuation mechanism includes a rubber component (10) sealed and fixed to the outer wall of the inner liner (2), and an actuation assembly (9) installed between the rubber component (10) and the micro switch mechanism. The rubber component (10) and the outer wall of the inner liner (2) are spaced apart to form the receiving cavity (8). When the receiving cavity (8) is filled with water and expands outward, the rubber component (10) pushes the actuation assembly (9) downward, and the actuation assembly (9) moves down to press and activate the micro switch (7).

3. An instantaneous water heater according to claim 2, characterized in that, The bottom outer wall of the inner liner (2) is recessed inward and has a corresponding groove. The groove is fitted with a corresponding inserting ring groove by means of an integrally formed protruding edge. The edge of the rubber part (10) is integrally formed with a corresponding protruding ring (1001). The protruding ring (1001) is embedded in the inserting ring groove and the rubber part (10) is sealed and fixedly installed at the opening of the groove by means of a fixing ring (11) pressed on the outside of the protruding ring (1001).

4. An instantaneous water heater according to claim 3, characterized in that, The trigger assembly (9) includes a micro switch cap (901) and a micro switch element (902) sleeved on top and bottom. The micro switch cap (901) is installed through the middle through hole of the fixing ring (11) and its top abuts against the lower middle side of the rubber element (10). The micro switch element (902) is movably sleeved on the positioning rod (12) and a corresponding elastic element (16) is connected between the lower end face of the micro switch element (902) and the positioning rod (12). The elastic element (16) is sleeved on the inner side of the positioning rod (12). The positioning rod (12) is fixedly installed on the outer shell (1). The micro switch (7) abuts against the lower part of the micro switch element (902).

5. An instantaneous water heater according to claim 4, characterized in that, The micro switch (902) includes a central cylindrical part (9021) and an integrally formed ring (9022) fixed to the outside of the cylindrical part (9021). The cylindrical part (9021) extends upward and is sleeved inside the micro switch cap (901), and extends downward and covers the positioning rod (12). The outer side wall of the positioning rod (12) and the inner side wall of the micro switch cap (901) are configured with matching limiting chamfers. The top of the cylindrical part (9021) is closed and has a limiting groove for limiting the micro switch cap (901) by being recessed inward at the upper end.

6. An instantaneous water heater according to claim 4, characterized in that, The bottom of the outer casing (1) is provided with a corresponding drain hole. The end of the positioning rod (12) passes through the drain hole downward and extends to the outside of the outer casing (1). The drain hole of the outer casing (1) is positioned and detachably fastened with a corresponding locking member (13) by the positioning rod (12).

7. An instantaneous water heater according to claim 2, characterized in that, At least one integrally formed recessed fold is provided on the rubber part (10).

8. An instantaneous water heater according to claim 1, characterized in that, The inlet and outlet of the inner liner (2) are both arranged horizontally. The inlet and outlet are sealed by corresponding sealing rings and are detachably equipped with corresponding inlet pipes (14) and outlet pipes (15). The inlet pipes (14) are arranged in a straight line or an L-shape.

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