Electric heating faucet with constant-temperature water outlet function

Abstract

The utility model provides an electric heating faucet with a constant-temperature water outlet function. The electric heating faucet comprises a shell assembly and an electric heating pipe. A water heating cavity with an opening in the lower end is formed in the shell assembly, the electric heating pipe is fixed in the shell assembly, and the heating end of the electric heating pipe is vertically arranged in the water heating cavity; the electric heating faucet further comprises an end cover and a flow guide pipe. The end cover is connected to an opening in the lower end of the water heating cavity and peripherally sealed with the water heating cavity, a water outlet is formed in the middle of the end cover, the flow guide pipe is arranged in the water heating cavity, the lower end of the flow guide pipe is connected with the upper end of the water outlet and peripherally sealed, and the upper end of the flow guide pipe extends to the upper end of the water heating cavity; a water inlet channel is formed in the shell assembly, and the water outlet end of the water inlet channel extends to the lower end of the water heating cavity; the constant-temperature water outlet device has the advantage of good constant-temperature water outlet effect.

Description

Technical Field

[0001] The utility model relates to the technical field of electric water faucets, in particular to an electric water faucet with a constant temperature water outlet function. Background Art

[0002] Electric water faucets have the advantages of fast and continuous hot water delivery, and are therefore increasingly being used by users. When the water flow through the electric water faucet changes during use, the electric water faucet uses a thyristor (SCR) located within the faucet to adjust the heating power of the electric heating tube within the faucet. Currently, electric water faucets on the market include a housing assembly, an electric heating tube, and a water valve. The water valve is connected to the housing assembly, which includes a water heating chamber within the housing assembly. The heating end of the electric heating tube extends into the water heating chamber, and the water outlet end of the water valve communicates with one end of the water heating chamber. The housing assembly is provided with a water outlet that communicates with the middle of the length of the water heating chamber. However, in the aforementioned electric water faucet structure, because the water outlet communicates with and delivers water from the middle of the length of the water heating chamber, tap water from the water valve may not fully flow through the heating end of the electric heating tube and the water heating chamber, but may be discharged from the water outlet. This affects the heating effect and heating uniformity of the tap water by the electric heating tube, making it difficult to maintain a constant temperature of the water flowing out of the electric water faucet. Utility Model Content

[0003] The technical problem to be solved by the utility model is to provide an electric water tap with a constant temperature water outlet function, which has the advantage of good constant temperature water outlet effect.

[0004] The utility model provides an electric water faucet with a constant temperature water outlet function, comprising a shell assembly and an electric heating tube; a water heating chamber with an opening at the lower end is provided inside the shell assembly, the electric heating tube is fixed inside the shell assembly, and the heating end of the electric heating tube is vertically arranged in the water heating chamber; the electric water faucet also includes an end cover and a flow guide tube; the end cover is connected to the opening at the lower end of the water heating chamber and is circumferentially sealed with the water heating chamber, a water outlet is provided in the middle of the end cover, the flow guide tube is arranged inside the water heating chamber, the lower end of the flow guide tube is connected to the upper end of the water outlet and is circumferentially sealed, and the upper end of the flow guide tube extends to the upper end of the water heating chamber; a water inlet channel is provided inside the shell assembly, and the water outlet end of the water inlet channel extends to the lower end of the water heating chamber.

[0005] After adopting the above structure, the utility model has the upper end of the guide tube extending to the upper end of the water heating chamber, and the water outlet end of the water inlet channel extending to the lower end of the water heating chamber, so that the tap water from the water inlet channel can completely flow through the heating end of the electric heating tube and the water heating chamber and then be discharged from the guide tube and the water outlet, that is, it can improve the heating effect and heating uniformity of the electric heating tube on the tap water, and further improve the constant temperature effect when the electric water faucet is discharging water.

[0006] In one possible embodiment, the end cover is threadedly connected to the opening at the lower end of the water heating chamber and is screwed to the water heating chamber, and the end cover is circumferentially sealed to the lower end of the water heating chamber by a sealing gasket; by adopting this structure, the end cover can be reliably fixed at the lower end of the water heating chamber, and under the action of the sealing gasket, the purpose of circumferential sealing can be reliably achieved between the end cover and the lower end of the water heating chamber; in addition, after the end cover is removed, the inner wall of the water heating chamber and the electric heating tube can be cleaned.

[0007] In one possible embodiment, an annular step is provided on the inner wall of the upper end of the water outlet, the lower end of the guide pipe is inserted into the upper end of the water outlet and abuts against the annular step, and the outer wall of the lower end of the guide pipe is tightly sealed with the inner wall of the upper end of the water outlet; by adopting this structure, the lower end of the guide pipe can be reliably connected to the upper end of the water outlet, and because the outer wall of the lower end of the guide pipe is tightly sealed with the inner wall of the upper end of the water outlet, the purpose of circumferential sealing can be achieved between the lower end of the guide pipe and the upper end of the water outlet. In addition, the outer wall of the lower end of the guide pipe can be further circumferentially fixed and sealed with the inner wall of the upper end of the water outlet by gluing.

[0008] In a possible embodiment, the electric water faucet further includes a temperature sensor, the temperature sensing end of the temperature sensor extends into the water heating chamber, the temperature sensor is circumferentially sealed and fixed at the upper end of the water heating chamber, and the temperature sensing end of the temperature sensor is close to the upper end of the flow guide tube; by adopting this structure, since the temperature sensing end of the temperature sensor is close to the upper end of the flow guide tube, and since the hot water in the water heating chamber flows into the flow guide tube through the upper end of the flow guide tube, and flows out of the electric water faucet through the flow guide tube and the water outlet, the temperature sensor can more accurately detect the water outlet temperature of the electric water faucet, thereby further enabling the control circuit board in the electric water faucet to achieve precise control of the water outlet temperature of the electric water faucet.

[0009] In a possible embodiment, the electric water faucet further includes a water valve, a water flow switch, a thyristor and a connecting pipe made of a metal material; the water valve is connected to the outside of the shell assembly, the water flow switch is fixed on the inner top of the shell assembly, the water inlet end of the water flow switch is connected to the water outlet end of the water valve, one end of the connecting pipe is connected to the water outlet end of the water flow switch and is circumferentially sealed, the other end of the connecting pipe is connected to the water inlet end of the water inlet channel and is circumferentially sealed, the thyristor is fixed on the outer wall of the connecting pipe and contacts the connecting pipe for heat conduction; by adopting this structure, when the electric water faucet is in use, when tap water enters from the water valve and the water flow switch and flows into the water inlet channel through the connecting pipe, under the action of the connecting pipe, the heat from the thyristor can be reliably conducted to the tap water flowing through the connecting pipe, that is, the tap water flowing through the connecting pipe can absorb the working heat of the thyristor. The heat generated during operation can be used to dissipate heat reliably for the thyristor, thereby effectively avoiding overheating and damage to the thyristor, and thus increasing the service life of the electric water faucet. Furthermore, when the tap water flowing through the connecting pipe dissipates heat for the thyristor, the heat from the thyristor can also preheat the tap water flowing through the connecting pipe, that is, it can achieve the purpose of saving energy. The above-mentioned thyristor is electrically connected to the control circuit board in the electric water faucet. The above-mentioned connecting pipe is made of stainless steel material, so that the connecting pipe has the advantages of good heat conduction effect and high structural strength, so that the heat from the thyristor can be reliably conducted to the water flowing through the connecting pipe, that is, the water flowing through the connecting pipe can absorb the heat generated when the thyristor is working, so as to achieve reliable heat dissipation of the thyristor. In addition, the connecting pipe can also be made of copper material, aluminum material, etc.

[0010] In a possible embodiment, a first sealing ring is clamped on the outer wall of one end of the connecting pipe, and the one end of the connecting pipe is inserted into the water outlet end of the water flow switch and is circumferentially sealed with the water outlet end of the water flow switch through the first sealing ring; after adopting this structure, after one end of the connecting pipe is inserted into the water outlet end of the water flow switch, the one end of the connecting pipe can be connected to the water outlet end of the water flow switch, and under the action of the first sealing ring, the purpose of circumferential sealing can be reliably achieved between the one end of the connecting pipe and the water outlet end of the water flow switch.

[0011] In one possible embodiment, a second sealing ring is clamped on the outer wall of the other end of the connecting pipe, and the other end of the connecting pipe is inserted into the water inlet end of the water inlet channel and is circumferentially sealed with the water inlet end of the water inlet channel through the second sealing ring; by adopting this structure, after the other end of the connecting pipe is inserted into the water inlet end of the water inlet channel, the other end of the connecting pipe can be connected to the water inlet end of the water inlet channel, and under the action of the second sealing ring, the purpose of circumferential sealing can be reliably achieved between the other end of the connecting pipe and the water inlet end of the water inlet channel.

[0012] In one possible embodiment, a block-shaped connecting portion is provided on the outer wall of the connecting tube, and the thyristor is fixed on the connecting portion and contacts the connecting portion for heat conduction; through the provision of the connecting portion, the thyristor can be reliably fixed on the outer wall of the connecting tube and conduct heat with the connecting tube, that is, the heat conduction effect between the thyristor and the connecting tube can be improved; in addition, under the action of the connecting portion, when one end of the connecting tube is connected to the water outlet end of the water flow switch, one side of the connecting portion can abut against the water outlet end of the switch, and when the other end of the connecting tube is connected to the water inlet end of the water inlet channel, the other side of the connecting portion can abut against the water inlet end of the water inlet channel, thereby realizing axial limitation of the connecting tube. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0014] Figure 2 It is a schematic diagram of a partially exploded three-dimensional structure of the utility model;

[0015] Figure 3 This is a schematic diagram of the three-dimensional structure of the utility model after removing the end cover and the electric heating tube;

[0016] Figure 4 It is a schematic diagram of the cross-sectional structure after the guide tube and the end cover are assembled;

[0017] Figure 5 This is a schematic diagram of the three-dimensional structure of the utility model after removing some shell components;

[0018] Figure 6 This is a schematic diagram of the three-dimensional structure after the thyristor and connecting tube are assembled. DETAILED DESCRIPTION

[0019] First, those skilled in the art should understand that these embodiments are merely used to explain the technical principles of the embodiments of the present application and are not intended to limit the scope of protection of the embodiments of the present application. Those skilled in the art may adjust them as needed to suit specific application scenarios.

[0020] In the description of the embodiments of this application, it should be noted that, unless otherwise specified or limited, the terms "connected" and "connection" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium. Those skilled in the art will understand the specific meanings of the above terms in the embodiments of this application based on the specific circumstances.

[0021] In the embodiments of the present application, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Furthermore, a first feature being "above," "above," and "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0022] The present application will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0023] See also Figure 1-6 As shown, the embodiment of the present application discloses an electric water faucet with a constant temperature water outlet function, comprising a shell assembly 1 and an electric heating tube 2; a water heating chamber 11 with an open lower end is provided inside the shell assembly 1, the electric heating tube 2 is fixed inside the shell assembly 1 and the heating end of the electric heating tube 2 is vertically arranged in the water heating chamber 11; the electric water faucet also includes an end cover 3 and a flow guide pipe 4; the end cover 3 is connected to the opening at the lower end of the water heating chamber 11 and is circumferentially sealed with the water heating chamber 11, a water outlet 31 is provided in the middle of the end cover 3, the flow guide pipe 4 is arranged inside the water heating chamber 11, the lower end of the flow guide pipe 4 is connected to the upper end of the water outlet 31 and is circumferentially sealed, and the upper end of the flow guide pipe 4 extends to the upper end of the water heating chamber 11; a water inlet channel 12 is provided inside the shell assembly 1, and the water outlet end of the water inlet channel 12 extends to the lower end of the water heating chamber 11.

[0024] The end cover 3 is threadedly connected to the opening at the lower end of the water heating chamber 11 and is screwed fastened to the water heating chamber 11. The end cover 3 is circumferentially sealed to the lower end of the water heating chamber 11 through a sealing gasket. By adopting this structure, the end cover can be reliably fixed at the lower end of the water heating chamber, and under the action of the sealing gasket, the purpose of circumferential sealing can be reliably achieved between the end cover and the lower end of the water heating chamber. In addition, after the end cover is removed, the inner wall of the water heating chamber and the electric heating tube can be cleaned.

[0025] An annular step 32 is provided on the inner wall of the upper end of the water outlet 31. The lower end of the guide tube 4 is inserted into the upper end of the water outlet 31 and abuts against the annular step 32. The outer wall of the lower end of the guide tube 4 is tightly sealed with the inner wall of the upper end of the water outlet 31. By adopting this structure, the lower end of the guide tube can be reliably connected to the upper end of the water outlet, and because the outer wall of the lower end of the guide tube is tightly sealed with the inner wall of the upper end of the water outlet, the purpose of circumferential sealing can be achieved between the lower end of the guide tube and the upper end of the water outlet. In addition, the outer wall of the lower end of the guide tube can be further circumferentially fixed and sealed with the inner wall of the upper end of the water outlet by gluing.

[0026] The electric water faucet also includes a temperature sensor 5, the temperature sensing end of the temperature sensor 5 extends into the water heating chamber 11, and the temperature sensor 5 is fixed at the upper end of the water heating chamber 11 in a circumferentially sealed manner. The temperature sensing end of the temperature sensor 5 is close to the upper end of the flow guide tube 4; by adopting this structure, since the temperature sensing end of the temperature sensor is close to the upper end of the flow guide tube, and since the hot water in the water heating chamber flows into the flow guide tube through the upper end of the flow guide tube, and flows out of the electric water faucet through the flow guide tube and the water outlet, the temperature sensor can more accurately detect the water outlet temperature of the electric water faucet, thereby further enabling the control circuit board in the electric water faucet to achieve precise control of the water outlet temperature of the electric water faucet.

[0027] The electric water faucet also includes a water valve 6, a water flow switch 7, a thyristor 8 and a connecting pipe 9 made of metal material; the water valve 6 is connected to the outside of the housing assembly 1, the water flow switch 7 is fixed on the inner top of the housing assembly 1, the water inlet end of the water flow switch 7 is connected to the water outlet end of the water valve 6, one end of the connecting pipe 9 is connected to the water outlet end of the water flow switch 7 and is circumferentially sealed, the other end of the connecting pipe 9 is connected to the water inlet end of the water inlet channel 12 and is circumferentially sealed, the thyristor 8 is fixed on the outer wall of the connecting pipe 9 and contacts the connecting pipe 9 for heat conduction; by adopting this structure, when the electric water faucet is in use, when tap water enters from the water valve and the water flow switch and flows into the water inlet channel through the connecting pipe, under the action of the connecting pipe, the heat from the thyristor can be reliably conducted to the tap water flowing through the connecting pipe, that is, the tap water flowing through the connecting pipe can absorb the heat from the thyristor The heat generated by the silicon during operation can be used to achieve reliable heat dissipation of the thyristor, thereby effectively avoiding overheating and damage to the thyristor, and thus increasing the service life of the electric water faucet; furthermore, when the tap water flowing through the connecting pipe dissipates heat from the thyristor, the heat from the thyristor can also be used to preheat the tap water flowing through the connecting pipe, that is, to achieve the purpose of saving energy; the above-mentioned thyristor is electrically connected to the control circuit board in the electric water faucet; the above-mentioned connecting pipe is made of stainless steel material, so that the connecting pipe has the advantages of good heat conduction effect and high structural strength, so that the heat from the thyristor can be reliably conducted to the water flowing through the connecting pipe, that is, the water flowing through the connecting pipe can absorb the heat generated by the thyristor during operation, so as to achieve reliable heat dissipation of the thyristor; in addition, the connecting pipe can also be made of copper material, aluminum material, etc.

[0028] A first sealing ring 91 is clamped on the outer wall of one end of the connecting pipe 9, and one end of the connecting pipe 9 is inserted into the water outlet end of the water flow switch 7 and is circumferentially sealed with the water outlet end of the water flow switch 7 through the first sealing ring 91; after adopting this structure, after one end of the connecting pipe is inserted into the water outlet end of the water flow switch, one end of the connecting pipe can be connected to the water outlet end of the water flow switch, and under the action of the first sealing ring, the purpose of circumferential sealing can be reliably achieved between one end of the connecting pipe and the water outlet end of the water flow switch.

[0029] A second sealing ring 92 is clamped on the outer wall of the other end of the connecting pipe 9, and the other end of the connecting pipe 9 is inserted into the water inlet end of the water inlet channel 12 and is circumferentially sealed with the water inlet end of the water inlet channel 12 through the second sealing ring 92; after adopting this structure, after the other end of the connecting pipe is inserted into the water inlet end of the water inlet channel, the other end of the connecting pipe can be connected to the water inlet end of the water inlet channel, and under the action of the second sealing ring, the purpose of circumferential sealing can be reliably achieved between the other end of the connecting pipe and the water inlet end of the water inlet channel.

[0030] A block-shaped connecting portion 93 is provided on the outer wall of the connecting pipe 9, and the thyristor 8 is fixed on the connecting portion 93 and contacts the connecting portion 93 for heat conduction; through the provision of the connecting portion, the thyristor can be reliably fixed on the outer wall of the connecting pipe and conduct heat with the connecting pipe, that is, the heat conduction effect between the thyristor and the connecting pipe can be improved; in addition, under the action of the connecting portion, when one end of the connecting pipe is connected to the water outlet end of the water flow switch, one side of the connecting portion can abut against the water outlet end of the switch, and when the other end of the connecting pipe is connected to the water inlet end of the water inlet channel, the other side of the connecting portion can abut against the water inlet end of the water inlet channel, thereby realizing axial limitation of the connecting pipe.

[0031] The above-mentioned electric heating tube, temperature sensor and thyristor are all electrically connected to the control circuit board in the electric water faucet.

[0032] The above description is merely a specific embodiment of the present application, but the scope of protection of the present application is not limited thereto. Any changes or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in the present application should be included in the scope of protection of the present application. Therefore, the scope of protection of the present application should be based on the scope of protection of the claims.

Claims

1. An electric water faucet with a constant temperature water outlet function, characterized by: The invention comprises a housing assembly (1) and an electric heating pipe (2); a water heating chamber (11) with an opening at the lower end is provided inside the housing assembly (1); the electric heating pipe (2) is fixed inside the housing assembly (1) and the heating end of the electric heating pipe (2) is vertically provided in the water heating chamber (11); the electric water faucet further comprises an end cover (3) and a flow guide pipe (4); the end cover (3) is connected to the opening at the lower end of the water heating chamber (11) and is circumferentially sealed with the water heating chamber (11). A water outlet (31) is provided in the middle of the end cover (3), the guide pipe (4) is provided inside the water heating chamber (11), the lower end of the guide pipe (4) is connected to the upper end of the water outlet (31) and is circumferentially sealed, and the upper end of the guide pipe (4) extends to the upper end of the water heating chamber (11); a water inlet channel (12) is provided inside the shell assembly (1), and the water outlet end of the water inlet channel (12) extends to the lower end of the water heating chamber (11).

2. The electric water faucet with constant temperature water outlet function according to claim 1, characterized in that: The end cover (3) is threadedly connected to the opening at the lower end of the water heating chamber (11) and is screw-fastened to the water heating chamber (11). The end cover (3) is circumferentially sealed with the lower end of the water heating chamber (11) via a sealing gasket.

3. The electric water faucet with constant temperature water outlet function according to claim 1, characterized in that: An annular step (32) is provided on the inner wall of the upper end of the water outlet (31); the lower end of the guide pipe (4) is inserted into the upper end of the water outlet (31) and abuts against the annular step (32); the outer wall of the lower end of the guide pipe (4) is tightly sealed with the inner wall of the upper end of the water outlet (31).

4. The electric water faucet with constant temperature water outlet function according to any one of claims 1 to 3, characterized in that: The electric water faucet further comprises a temperature sensor (5), a temperature sensing end of the temperature sensor (5) extending into the water heating chamber (11), the temperature sensor (5) being fixed at the upper end of the water heating chamber (11) in a circumferentially sealed manner, and the temperature sensing end of the temperature sensor (5) being close to the upper end of the flow guide tube (4).

5. The electric water faucet with constant temperature water outlet function according to any one of claims 1 to 3, characterized in that: The electric hot water faucet further comprises a water valve (6), a water flow switch (7), a thyristor (8) and a connecting pipe (9) made of a metal material; the water valve (6) is connected to the outside of the housing assembly (1), the water flow switch (7) is fixed on the inner top of the housing assembly (1), the water inlet end of the water flow switch (7) is connected to the water outlet end of the water valve (6), one end of the connecting pipe (9) is connected to the water outlet end of the water flow switch (7) and is circumferentially sealed, the other end of the connecting pipe (9) is connected to the water inlet end of the water inlet channel (12) and is circumferentially sealed, and the thyristor (8) is fixed on the outer wall of the connecting pipe (9) and is in contact with the connecting pipe (9) for heat conduction.

6. The electric water faucet with constant temperature water outlet function according to claim 5, characterized in that: A first sealing ring (91) is clamped on the outer wall of one end of the connecting pipe (9), and one end of the connecting pipe (9) is inserted into the water outlet end of the water flow switch (7) and is circumferentially sealed with the water outlet end of the water flow switch (7) through the first sealing ring (91).

7. The electric water faucet with constant temperature water outlet function according to claim 5, characterized in that: A second sealing ring (92) is clamped on the outer wall of the other end of the connecting pipe (9), and the other end of the connecting pipe (9) is inserted into the water inlet end of the water inlet channel (12) and is circumferentially sealed with the water inlet end of the water inlet channel (12) through the second sealing ring (92).

8. The electric water faucet with constant temperature water outlet function according to claim 5, characterized in that: A block-shaped connecting portion (93) is provided on the outer side wall of the connecting tube (9), and the thyristor (8) is fixed on the connecting portion (93) and contacts the connecting portion (93) for heat conduction.

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