An integrated water mixing structure of an electric water heater and a constant-temperature rapid heating electric water heater

Abstract

The application provides an integrated water mixing structure of an electric water heater, which comprises an integrated main body and an electric heating main body arranged outside the integrated main body; the two ends of the integrated main body are a main end and a secondary end; in particular, the integrated main body is provided with a first water channel and a second water channel; the first water channel is in a U shape, and the two ends of the first water channel are close to the main end; the first end of the first water channel is communicated with a first communicating water channel and a first joint; the second end of the first water channel is communicated with a first water hole, and the end of the first water hole is located on the side wall close to the main end; the first water channel is provided with a second water hole close to the secondary end and communicated with a second joint; the second water channel is in a U shape, and the two ends of the second water channel are close to the secondary end; the first end of the second water channel is communicated with a third water hole, and the end of the third water hole is located on the side wall close to the secondary end; the second end of the second water channel is communicated with a third communicating water channel and a third joint; the first water hole and the third water hole are communicated with the electric heating main body; and a constant-temperature fast-heating electric water heater is also provided, which comprises a first electric water heating main body and a second electric water heating main body adopting the integrated water mixing structure; and the electric water heater has the characteristics of simple pipeline connection and high hot water output rate.

Description

Technical Field

[0001] This invention relates to electric water heaters, specifically an integrated mixing structure for an electric water heater and a constant-temperature, fast-heating electric water heater equipped with the integrated mixing structure. Background Technology

[0002] Chinese Patent Application No. 201220058544.X discloses a combined storage and instantaneous heating constant temperature electric water heater, which includes a storage-type electric water heater, an instantaneous electric water heater, and an adjustable temperature constant temperature mixing valve. The preheating inlet pipe of the storage-type electric water heater is connected to a cold water inlet pipe, which is used to connect to a tap water pipe to input cold water into the storage-type electric water heater. The preheating outlet pipe of the storage-type electric water heater is connected to the instantaneous inlet of the instantaneous electric water heater, so that the preheated water heated by the storage-type electric water heater is input into the instantaneous electric water heater for instantaneous heating. The instant hot water outlet of the electric water heater is connected to one inlet of an adjustable temperature thermostatic mixing valve, allowing the hot water heated by the instant water heater to enter the valve. The other inlet of the adjustable temperature thermostatic mixing valve is connected to a cold water inlet pipe to mix cold water into the hot water. Simultaneously, the outlet of the adjustable temperature thermostatic mixing valve is connected to a hot water outlet connector, thus outputting appropriately sized hot water for the user. This achieves the goal of providing suitable hot water for the user after the instant water heater is automatically adjusted by the adjustable temperature thermostatic mixing valve. This type of thermostatic electric water heater achieves a suitable hot water output, effectively extending the hot water output time of storage-type electric water heaters and improving the hot water output rate. However, the piping connection between the storage-type and instant water heaters in this type of thermostatic electric water heater is complex, with numerous connection points, leading to more potential leaks within the water heater. It also hinders assembly and maintenance, and the overall size is relatively large. Therefore, improvements are necessary. Summary of the Invention

[0003] The purpose of this invention is to propose an integrated mixing structure for an electric water heater. The integrated main body has two water channels, a first and a second, for water input and output to the electric heating element, respectively. The first water channel is also connected to a first connecting water channel and a second water hole, allowing two types of water to be input into the first water channel. The two types of water are mixed in the first water channel before being input into the electric heating element. Specifically, the overall structure is compact with few pipe connection points. This invention also proposes a constant-temperature, rapid-heating electric water heater that adopts this integrated mixing structure, featuring simple pipe connections, easy assembly, convenient maintenance, and high hot water output rate.

[0004] The objective of this invention can be achieved through the following technical solutions: An integrated mixing structure for an electric water heater includes an integrated body and an electric heating body; the integrated body is an elongated strip structure with one end as the main end and the other end as the secondary end; the electric heating body is located on the outside of the integrated body and has an electric heating water cavity and an electric heating tube for heating the electric heating water cavity, characterized in that: the integrated body has a first water channel and a second water channel, and the first water channel and the second water channel are arranged in layers along the height direction of the integrated body; The first water channel is arranged in a U-shape along the length of the integrated body. The first end and the second end of the first water channel are close to the main end of the integrated body. The first end of the first water channel is connected to the first connecting water channel. The end of the first connecting water channel is connected to the first connector. The second end of the first water channel is connected to the first water hole. The end of the first water hole is located on the side wall of the integrated body near the main end. The first water channel has a second water hole near the secondary end of the integrated body. The end of the second water hole is connected to the second connector. The second water channel is arranged in a U-shape along the length of the integrated body. The first and second ends of the second water channel are close to the secondary end of the integrated body. The first end of the second water channel is connected to a third water hole. The end of the third water hole is located on the side wall of the integrated body near the secondary end. The second end of the second water channel is connected to a third connecting water channel. The end of the third connecting water channel is connected to a third connector. The first and third water holes are respectively connected to the electric heating water chamber of the electric heating body.

[0005] In the optimized scheme, the first waterway is located near the second water hole and has a second connecting waterway. The first end of the second connecting waterway is connected to the second water hole, and the second end is away from the first water hole and connected to the first waterway.

[0006] In the optimized scheme, the first end of the first water path is connected to the first connecting water path through a mixing valve body. The mixing valve body is a three-way valve structure with one valve body inlet and two valve body outlets. The valve body inlet of the mixing valve body is connected to the first connecting water path, one valve body outlet is connected to the first end of the first water path, and the other valve body outlet is connected to the fourth water path. The end of the fourth water path is connected to the fourth connector.

[0007] Furthermore, the valve core of the mixing valve body is driven to rotate by a micro motor, thereby adjusting the opening degree of the mixing valve body.

[0008] In the optimized design, the electric heating element is a cast aluminum electric heater.

[0009] In the optimized design, a water flow sensor is installed in the first water channel between the first water hole and the second water hole.

[0010] In the optimized design, a first temperature sensor is installed in the first water channel between the first water hole and the second water hole.

[0011] The optimized design includes a second temperature sensor installed in the second water channel.

[0012] Another constant-temperature rapid-heating electric water heater is proposed, which includes a first electric water heater body and a second electric water heater body. The first electric water heater body has a first electric water heater cavity and a first electric heating tube for heating the first electric water heater cavity. The first electric water heater cavity is connected to a first water inlet connector and a first water outlet connector. The second electric water heater body adopts the above-mentioned integrated mixing structure of the electric water heater. The feature is that the fourth connector of the integrated mixing structure of the electric water heater body is connected to the first water inlet connector of the first electric water heater body, and the first water outlet connector of the first electric water heater body is connected to the second connector of the integrated mixing structure of the electric water heater body.

[0013] The optimized solution is that the first electric water heater body is a storage-type electric water heater, which includes a horizontally or vertically arranged water storage tank, and the water storage tank has a first electric water heating chamber.

[0014] This invention has the following outstanding substantive features and significant progress: 1. The integrated body of the present invention has two water channels, a first and a second, for water input and output of the electric heating body, respectively. The first water channel is also connected to a first connecting water channel and a second water hole for inputting two kinds of water into the first water channel, so that the two kinds of water are mixed in the first water channel and then input into the electric heating body. Finally, the two kinds of water are mixed and then input into the electric heating body, heated by the electric heating body, and then input for use. The second water channel acts as an anti-electric shock wall for the hot water output by the electric heating body.

[0015] 2. The present invention further provides a second connecting waterway within the first waterway, extending the waterway connecting the second water hole to the first waterway through the second connecting waterway, thereby allowing the water entering through the second water hole to mix more fully with the water in the first waterway, and thus enabling the two types of water in the first waterway to mix evenly and efficiently.

[0016] 3. The present invention further provides a mixing valve body, the valve body inlet of the mixing valve body is connected to the first connecting water passage, and then a water body is output from the first connector through the two valve body outlets of the mixing valve body in two ways, one is input to the first water passage and the other is input to the fourth water passage, realizing dual water passage transportation, and the water volume of dual water passage transportation can be adjusted by adjusting the opening of the mixing valve body.

[0017] 4. The present invention further incorporates a micro motor to achieve automatic control of the mixing valve body; further adopts a cast aluminum electric water heater as the main body for electric heating, which has the characteristics of stable and efficient heating; further incorporates a water flow sensor and first and second temperature sensors within the integrated body to detect the water flow entering the electric heating body and the water temperature entering and exiting the electric heating body.

[0018] 5. The constant temperature fast heating electric water heater of the present invention adopts the integrated mixing structure of the electric water heater of the present invention, which has the characteristics of simple pipeline connection, easy assembly and easy maintenance. Attached Figure Description

[0019] Figure 1 and Figure 2 This is a schematic diagram of the integrated mixing structure of the electric water heater of the present invention.

[0020] Figure 3 This is a schematic diagram of the integrated body of the present invention located at the main end.

[0021] Figure 4 This is a cross-sectional schematic diagram of the integrated body of the present invention located in the fourth water channel.

[0022] Figure 5 and Figure 6 This is a cross-sectional schematic diagram of the integrated body of the present invention located in the first water channel.

[0023] Figure 7 This is a cross-sectional schematic diagram of the integrated body of the present invention located in the second waterway.

[0024] Figure 8 This is a cross-sectional schematic diagram of the integrated body of the present invention located at the first joint and the fourth joint.

[0025] Figure 9 This is a cross-sectional schematic diagram of the integrated body of the present invention located at the second and third joints.

[0026] Figure 10 This is a schematic diagram of a constant temperature rapid heating electric water heater according to the present invention.

[0027] Figure 11 This is a schematic diagram of another structure of the constant temperature rapid heating electric water heater of the present invention. Detailed Implementation

[0028] The invention will now be further described with reference to the accompanying drawings. Example

[0029] For details, please refer to the following: Figures 1 to 11 A constant-temperature, fast-heating electric water heater includes a first electric water heating body 7 and a second electric water heating body. The first electric water heating body 7 is a storage-type electric water heater, such as... Figure 11 As shown, it includes a horizontally arranged water storage tank 70, which contains a first electric hot water chamber and a first electric heating element for heating the first electric hot water chamber. The first electric hot water chamber is connected to a first water inlet connector 71 and a first water outlet connector 72. Figure 10 As shown, the storage-type electric water heater in this embodiment can also adopt a vertically arranged water storage tank 70.

[0030] The second electric water heater body adopts an integrated mixing structure for electric water heaters.

[0031] For details, please refer to the following: Figures 1 to 9 An integrated mixing structure for an electric water heater includes an integrated main body 1 and an electric heating body 2. The integrated main body 1 is an elongated strip structure with one end as the main end and the other end as the secondary end. The electric heating body 2 is located on the outside of the integrated main body 1 and has an electric heating water chamber and an electric heating tube 20 for heating the electric heating water chamber. In this embodiment, the electric heating body 2 adopts a cast aluminum electric heater structure.

[0032] The integrated body 1 has a first water channel 3 and a second water channel 4, which are arranged in layers along the height direction of the integrated body 1.

[0033] like Figure 5 and Figure 6 The first waterway 3 is arranged in a U-shape along the length of the integrated body 1. The first end and the second end of the first waterway 3 are close to the main end of the integrated body 1. The first end of the first waterway 3 is connected to the first connecting waterway 31 through a mixing valve body 5. The end of the first connecting waterway 31 is connected to the first connector 91.

[0034] The mixing valve body 5 is a three-way valve structure, having one valve body inlet and two valve body outlets. The valve body inlet of the mixing valve body 5 is connected to the first connecting water passage 31, one valve body outlet is connected to the first end of the first water passage 3, and the other valve body outlet is connected to the fourth water passage 51. Figure 3 , Figure 4 and Figure 8 The fourth water passage 51 is connected to a fourth connector 94 at its end. The valve core of the mixing valve body 5 is driven to rotate by a micro motor 6, thereby adjusting the opening degree of the mixing valve body 5.

[0035] like Figure 5 , Figure 6 and Figure 9 The second end of the first water channel 3 is connected to a first water hole 32. The end of the first water hole 32 is located on the side wall of the integrated body 1 near the main end. The first water channel 3 has a second water hole 33 near the secondary end of the integrated body 1. The end of the second water hole 33 is connected to a second connector 92.

[0036] like Figure 7 The second water channel 4 is arranged in a U-shape along the length of the integrated body 1. Both the first and second ends of the second water channel 4 are close to the secondary end of the integrated body 1. The first end of the second water channel 4 is connected to a third water hole 41, and the end of the third water hole 41 is located on the side wall of the integrated body 1 near the secondary end. The second end of the second water channel 4 is connected to a third connecting water channel 42. Figure 9The end of the third connecting water channel 42 is connected to the third connector 93, and the first water hole 32 and the third water hole 41 are respectively connected to the electric heating water chamber of the electric heating body 2.

[0037] The fourth connector 94 of the integrated mixing structure of the electric water heater is connected to the first inlet connector 71 of the first electric water heater body 7, and the first outlet connector 72 of the first electric water heater body 7 is connected to the second connector 92 of the integrated mixing structure of the electric water heater.

[0038] In the above structure, the first connector 91 serves as a cold water inlet connector for connecting to the tap water pipe that provides the cold water source. The cold water flows from the first connector 91 → the first connecting water passage 31 → the valve body inlet of the mixing valve body 5 → the mixing valve body 5, and then splits into two flow directions through the two valve body outlets of the mixing valve body 5. The first flow direction is from the mixing valve body 5 → one valve body outlet of the mixing valve body 5 → the first water passage 31, as shown below. Figure 5 As shown by the solid arrow, the second flow direction is from the mixing valve body 5 → the outlet of another valve body of the mixing valve body 5 → the fourth water passage 51 → the fourth connector 94 → the first inlet connector 71 of the first electric water heater body 7 → inside the first electric water heater body 7.

[0039] Then, the cold water flowing in the second direction enters the first electric water heater body 7 and is heated into hot water. This hot water flows from the first electric water heater body 7 → the first water outlet connector 72 of the first electric water heater body 7 → the second connector 92 → the second water hole 33 → the first water passage 3. In the first water passage 3, the cold water flowing in the first direction mixes with the hot water as it flows, resulting in low-temperature water.

[0040] Then, the low-temperature water flows from the first water channel 3 → the first water hole 32 → the electric heating water chamber of the electric heating body 2, as follows: Figure 7 As indicated by the middle arrow, the water heated to a suitable temperature is output from the electric heating water chamber of the electric heating body 2 → the third water hole 41 → the second water passage 4 → the third connecting water passage 42 → the third connector 93 for user use.

[0041] In addition, the first water passage 3 and the second water passage 4 are set in a U-shape. The U-shaped design extends the length of the first water passage 3 and the second water passage 4, which acts as an anti-electric shock wall for the hot water output by the first electric water heater body 7 and the moderately warm water output by the electric heating body 2, effectively ensuring the performance and safety of the electric water heater.

[0042] In this embodiment, further, the first water passage 3 also has a second connecting water passage 34 located near the second water hole 33. The first end of the second connecting water passage 34 is connected to the second water hole 33, and the second end is away from the first water hole 32 and connected to the first water passage 3. Through the arrangement of the second connecting water passage 34, the hot water output from the first electric water heater body 7 flows from the second connector 92 → the second water hole 33 → the second connecting water passage 34 → the first water passage 3, as shown below. Figure 5As indicated by the hollow arrow, the hot water path within the first water path 3 is further extended via the second connecting water path 34, as shown below. Figure 5 As shown, By extending the water path, the uniform mixing effect of cold water and hot water in the first water path 3 is improved.

[0043] Furthermore, in this embodiment, a water flow sensor 61 is provided in the first water path 3 between the first water hole 32 and the second water hole 33 to detect the water flow rate entering the electric heating body 2. A first temperature sensor 62 is provided in the first water path 3 between the first water hole 32 and the second water hole 33 to detect the water temperature entering the electric heating body 2, i.e., the temperature of the low-temperature water. A second temperature sensor 63 is provided in the second water path 4 to detect the output water temperature of the electric heating body 2, i.e., the temperature of the moderately warm water. By integrating the water flow sensor 61, the first temperature sensor 62, and the second temperature sensor 63 on the integrated body 1, the stable, efficient, and reliable operation of the electric heating body 2 is effectively ensured.

[0044] The electric water heater in this embodiment has the following operating modes: 1. Instant heating mode: The electric heating element 2 of the second electric water heater body rapidly heats the water flowing through the second electric water heater body and directly outputs hot water, which is suitable for use when the ambient temperature is high.

[0045] 2. Preheating Mode: The first electric water heater body 7 preheats the water inside, ensuring that the second electric water heater body outputs hot water at a sufficient temperature, suitable for use in cold environments. During operation, the mixing valve 5 adjusts the flow ratio between the cold water entering the first electric water heater body 7 and the cold water flowing in the first water path 3 (first direction). For the first electric water heater body 7, which is a storage-type electric water heater, the flow rate of the cold water entering the body is the same as the flow rate of the hot water output. Therefore, by adjusting the flow rate of the hot water output from the first electric water heater body 7 and the cold water flowing in the first water path 3 through the mixing valve 5, the water temperature entering the second electric water heater body is controlled. Based on this water temperature, the heating power of the second electric water heater body is adjusted, ultimately achieving the goal of controlling the outlet water temperature of the second electric water heater body.

[0046] In addition, in this embodiment, the mixing valve body 5 is used to proportionally adjust the flow rate of cold water, and the heated water does not flow through the mixing valve body 5, thereby avoiding the adverse effects of the high temperature of the water on the mixing valve body 5 and the micro motor 6.

[0047] It should be noted that, in this embodiment, in order to facilitate the opening of various water channels on the integrated body 1, the second end of the first water channel 3 and the second water channel 4 at the position corresponding to the main end of the integrated body 1 have perforations on the end face of the main end of the integrated body 1. These two perforations are sealed by the subsequently installed mixing valve body 5.

Claims

1. An integrated mixing structure for an electric water heater, comprising an integrated body (1) and an electric heating body (2); the integrated body (1) is an elongated strip structure, with one end as the main end and the other end as the secondary end; the electric heating body (2) is disposed on the outside of the integrated body (1), and has an electric heating water chamber and an electric heating tube (20) for heating the electric heating water chamber, characterized in that: The integrated body (1) has a first waterway (3) and a second waterway (4), and the first waterway (3) and the second waterway (4) are arranged in layers along the height direction of the integrated body (1); The first water channel (3) is arranged in a U-shape along the length of the integrated body (1). The first end and the second end of the first water channel (3) are close to the main end of the integrated body (1). The first end of the first water channel (3) is connected to the first connecting water channel (31). The end of the first connecting water channel (31) is connected to the first connector (91). The second end of the first water channel (3) is connected to the first water hole (32). The end of the first water hole (32) is located on the side wall of the integrated body (1) near the main end. The first water channel (3) has a second water hole (33) near the secondary end of the integrated body (1). The end of the second water hole (33) is connected to the second connector (92). The second water channel (4) is arranged in a U-shape along the length of the integrated body (1). The first and second ends of the second water channel (4) are close to the secondary end of the integrated body (1). The first end of the second water channel (4) is connected to the third water hole (41). The end of the third water hole (41) is located on the side wall of the integrated body (1) near the secondary end. The second end of the second water channel (4) is connected to the third connecting water channel (42). The end of the third connecting water channel (42) is connected to the third connector (93). The first water hole (32) and the third water hole (41) are respectively connected to the electric heating water chamber of the electric heating body (2).

2. The integrated mixing structure for an electric water heater according to claim 1, characterized in that: The first waterway (3) also has a second connecting waterway (34) located near the second water hole (33). The first end of the second connecting waterway (34) is connected to the second water hole (33), and the second end is far away from the first water hole (32) and connected to the first waterway (3).

3. An integrated mixing structure for an electric water heater according to claim 1 or 2, characterized in that: The first end of the first water passage (3) is connected to the first connecting water passage (31) through a mixing valve body (5). The mixing valve body (5) is a three-way valve structure with one valve body inlet and two valve body outlets. The valve body inlet of the mixing valve body (5) is connected to the first connecting water passage (31), one valve body outlet is connected to the first end of the first water passage (3), and the other valve body outlet is connected to the fourth water passage (51). The end of the fourth water passage (51) is connected to the fourth connector (94).

4. The integrated mixing structure for an electric water heater according to claim 3, characterized in that: The valve core of the mixing valve body (5) is driven to rotate by a micro motor (6), thereby adjusting the opening degree of the mixing valve body (5).

5. The integrated mixing structure for an electric water heater according to claim 3, characterized in that: The electric heating body (2) is a cast aluminum electric heater.

6. The integrated mixing structure for an electric water heater according to claim 3, characterized in that: A water flow sensor (61) is provided in the first water channel (3) between the first water hole (32) and the second water hole (33).

7. The integrated mixing structure for an electric water heater according to claim 3, characterized in that: A first temperature sensor (62) is provided in the first water channel (3) between the first water hole (32) and the second water hole (33).

8. The integrated mixing structure for an electric water heater according to claim 3, characterized in that: The second water channel (4) is equipped with a second temperature sensor (63).

9. A constant-temperature rapid-heating electric water heater, comprising a first electric water heater body (7) and a second electric water heater body, the first electric water heater body (7) having a first electric water heater cavity and a first electric heating tube for heating the first electric water heater cavity, the first electric water heater cavity being connected to a first water inlet connector (71) and a first water outlet connector (72), the second electric water heater body employing the integrated mixing structure of the electric water heater as described in claim 3, characterized in that: The fourth connector (94) of the integrated mixing structure of the electric water heater is connected to the first inlet connector (71) of the first electric water heater body (7), and the first outlet connector (72) of the first electric water heater body (7) is connected to the second connector (92) of the integrated mixing structure of the electric water heater.

10. A constant-temperature rapid-heating electric water heater according to claim 9, characterized in that: The first electric water heater body (7) is a storage-type electric water heater, which includes a horizontally or vertically arranged water storage tank (70), and the water storage tank (70) has a first electric water heater cavity.

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