CN219013490U

CN219013490U - Water mixing valve and water heater

Info

Publication number: CN219013490U
Application number: CN202223540920.1U
Authority: CN
Inventors: 卢宇轩; 陈鹏; 伍家雄
Original assignee: Guangdong Vanward New Electric Co Ltd
Current assignee: Guangdong Vanward New Electric Co Ltd
Priority date: 2022-12-29
Filing date: 2022-12-29
Publication date: 2023-05-12
Anticipated expiration: 2032-12-29

Abstract

The utility model belongs to the technical field of valves, and particularly discloses a water mixing valve and a water heater. The water mixing valve comprises a valve body, the valve body is provided with a cold water inlet channel, a water mixing cavity and a water mixing outlet channel, the valve body comprises a main body pipe part extending along a first direction, a machine body cold water pipe part and a machine body hot water pipe part which are connected to the main body pipe part at intervals, the main body pipe part is provided with a water inlet electric-proof wall structure communicated with the cold water outlet channel and the cold water inlet channel and a water outlet electric-proof wall structure communicated with the hot water inlet channel and the water mixing cavity, and the water inlet electric-proof wall structure and the water outlet electric-proof wall structure are arranged side by side in a second direction; on a projection plane perpendicular to the third direction, the projection center of the cold water outlet channel and the projection center of the hot water inlet channel are respectively positioned at two sides of the central line of the main body pipe part. The water mixing valve and the water heater disclosed by the utility model can increase the water inflow and outflow of the water mixing valve and the water heater, and improve the use experience of the water mixing valve and the water heater.

Description

Water mixing valve and water heater

Technical Field

The utility model relates to the technical field of valves, in particular to a water mixing valve and a water heater.

Background

The water mixing valve is a valve structure commonly used on water heaters, and generally has the functions of regulating the temperature of discharged water and keeping the temperature of discharged water constant, and is generally divided into a mechanical water mixing valve and a water mixing valve according to different regulating modes.

The prior art provides a mixing valve, it includes along the main part of first direction extension and the cold water outlet pipe portion and the hot water inlet tube portion of perpendicular connection on the main part, the main part is provided with electric wall structure and play water and prevents electric wall structure along the second direction side by side to increase water route resistance, reduce mixing valve electric leakage's probability, be provided with the cold water outlet channel with the perpendicular intercommunication of electric wall structure is prevented to the water inlet pipe portion, be provided with the hot water inlet channel with the perpendicular intercommunication of electric wall structure is prevented to the water inlet pipe portion.

The utility model provides a water mixing valve, though can reduce the probability of mixing valve electric leakage, but owing to current water inflow prevent electric wall structure and play water prevent electric wall set up side by side on the main part of valve body, and cold water outlet pipe portion and hot water outlet pipe portion connect on the central axis of main part and the interval sets up on the central axis, lead to cold water outlet pipe portion and water inflow prevent electric wall structure dislocation set in the second direction, and hot water inlet pipe portion and play water prevent electric wall structure dislocation set in the second direction, and then lead to cold water outlet channel and water inflow prevent electric wall structure between the area of communicating and hot water inlet channel and water inflow prevent electric wall structure between the area of communicating all less, thereby lead to water inflow and water outflow to reduce, influence the use experience of water mixing valve.

Disclosure of Invention

One of the technical problems to be solved by the utility model is to provide the water mixing valve, which can effectively solve the problem of water flow reduction caused by the arrangement of the electricity-proof wall structure of the existing water mixing valve, improve the water inlet flow and the water outlet flow of the water mixing valve and improve the use experience of the water mixing valve.

The second technical problem to be solved by the utility model is to provide the water heater, which can effectively solve the problem that the water inlet and outlet flow of the existing water heater is reduced due to the arrangement of the electricity-proof wall structure, improve the water inlet and outlet flow of the water heater and improve the use experience of the water heater.

The first technical problem is solved by the following technical scheme:

the water mixing valve comprises a valve body, wherein the valve body is provided with a cold water inlet channel, a water mixing cavity and a water mixing outlet channel, and is characterized in that the valve body comprises a main body pipe part extending along a first direction, a machine body cold water pipe part and a machine body hot water pipe part which are connected to the main body pipe part at intervals, the machine body cold water pipe part is provided with the cold water outlet channel, the machine body hot water pipe part is provided with a hot water inlet channel, the main body pipe part is provided with a water inlet electric wall structure communicated with the cold water outlet channel and the cold water inlet channel, and a water outlet electric wall structure communicated with the hot water inlet channel and the water mixing cavity, the water inlet electric wall structure and the water outlet electric wall structure are arranged side by side in a second direction, the machine body cold water pipe part and the machine body hot water pipe part are arranged along a third direction, and the first direction, the second direction and the third direction are mutually perpendicular;

on the projection plane perpendicular to the third direction, a first acute angle alpha is formed between the central connecting line of the projection center of the cold water outlet channel and the projection center of the hot water inlet channel and the first direction, and the projection center of the cold water outlet channel and the projection center of the hot water inlet channel are respectively positioned at two sides of the central line of the main body pipe part.

Compared with the background technology, the water mixing valve has the following beneficial effects: through setting up the central line slope of the relative cold water play water channel of extending direction of main part pipe portion and hot water inflow channel, can prevent electric wall structure and play water and prevent electric wall structure when setting up side by side in main part pipe portion for cold water outflow channel can be close to the setting of electric wall structure of preventing water inflow, and hot water inflow channel can be close to the setting of electric wall structure of preventing water inflow, even make cold water outflow channel and electric wall structure of preventing water inflow can counterpoint the setting in the second direction, hot water inflow channel and electric wall structure of preventing water inflow can counterpoint the setting in the second direction, thereby can increase the intercommunication mouth size between cold water inflow channel and the electric wall structure of preventing water inflow, and increase the intercommunication mouth size between hot water inflow channel and the electric wall structure of preventing water inflow, and then can increase the cold water outflow flow and the hot water inflow of mixing valve, improve the use travelling comfort of mixing valve.

In one embodiment, the first acute angle α is 1 ° to 15 °.

In one embodiment, the valve body is provided with a water inlet pipe part and a water outlet pipe part which are connected to the main body pipe part at intervals, the water inlet pipe part is provided with the cold water inlet channel, the water outlet pipe part is provided with the mixed water outlet channel, the water inlet pipe part and the water outlet pipe part are parallel and are arranged at intervals, and a second acute angle beta is formed between the water inlet pipe part and the main body pipe part, and beta=90-alpha.

In one embodiment, the water mixing valve further comprises a water outlet flow detection device, and a detection part of the water outlet flow detection device stretches into the water mixing outlet channel.

In one embodiment, the valve body is provided with a mounting cavity, the mounting cavity is communicated with the water mixing outlet channel and penetrates through one side wall of the valve body to form a mounting opening, and the water outlet flow detection device can be installed in the mounting cavity through the mounting opening and is used for sealing the mounting opening;

and/or, the water outlet flow detection device is a rotameter, the rotameter comprises a mounting shell and a flow rotor rotatably mounted on the mounting shell, the rotation axis of the flow rotor is perpendicular to the extending direction of the water mixing water outlet channel and the first direction, and the flow rotor is at least partially positioned in the water mixing water outlet channel.

In one embodiment, the mounting opening is located on a side of the valve body remote from the hot water inlet passage.

In one embodiment, the wall of the installation cavity is provided with a limiting step surface facing the installation opening, and the outer side wall of the water outlet flow detection device is provided with a positioning step surface which is abutted with the limiting step surface;

the water mixing valve further comprises a sealing plate, the sealing plate is detachably connected with the valve body and seals the mounting opening, and the sealing plate is abutted to the end face of the water outlet flow detection device.

In one embodiment, the water mixing valve further comprises a flow receiver, wherein the flow receiver is used for receiving a detection signal of the water outlet flow detection device;

the valve body lateral wall has the installation blind hole that the opening up, flow receiver install in the installation blind hole, flow receiver is connected with the signal transmission line.

In one embodiment, the mounting blind hole is filled with waterproof glue, and the waterproof glue wraps the flow receiver.

The second technical problem is solved by the following technical scheme:

a water heater comprising a mixing valve as described above.

Compared with the background technology, the water heater has the beneficial effects that: through adopting foretell water mixing valve, can increase the business turn over discharge of water heater, improve the use experience of water heater.

Drawings

FIG. 1 is a schematic structural view of a water mixing valve according to an embodiment of the present utility model;

FIG. 2 is a top view of a mixing valve according to an embodiment of the present utility model;

FIG. 3 is a cross-sectional view taken along the direction A-A in FIG. 2;

FIG. 4 is a cross-sectional view taken along the direction B-B in FIG. 2;

FIG. 5 is a cross-sectional view taken along the direction C-C in FIG. 2;

fig. 6 is a schematic diagram of a split structure of a water mixing valve according to an embodiment of the present utility model.

Description of the reference numerals:

1. a valve body; 11. a main body tube portion; 111. a water inlet electricity-proof wall structure; 112. a water outlet electricity-proof wall structure; 113. a mixed cold water channel; 12. a water inlet pipe section; 121. a cold water inlet channel; 13. a water outlet pipe part; 131. a water mixing cavity; 132. a water outlet channel; 133. a mounting cylinder part; 1331. a mounting cavity; 134. a mounting boss; 135. a mounting convex part; 1351. installing a blind hole; 14. a cold water pipe part of the machine body; 141. a cold water outlet channel; 15. a hot water pipe part of the machine body; 151. a hot water inlet channel;

2. a water outlet flow detection device; 21. a mounting shell; 22. a flow rotor; 3. a sealing plate; 4. a seal ring; 5. a water outlet temperature detection device; 6. a flow receiver; 7. a signal transmission line.

Detailed Description

The following description of the embodiments of the present application will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all, of the embodiments of the present application. All other embodiments, which can be made by one of ordinary skill in the art without undue burden from the present disclosure, are within the scope of the present disclosure.

In the description of the present application, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present application, unless otherwise indicated, the meaning of "a plurality" is two or more.

In the description of the present application, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the terms in this application will be understood by those of ordinary skill in the art in a specific context.

As shown in fig. 1, the present embodiment provides a water mixing valve, which can be applied to water heaters such as electric water heater and gas water heater, so as to realize the adjustment of water outlet temperature and water outlet mode, and improve water outlet comfort.

As shown in fig. 1 to 4, the water mixing valve comprises a valve body 1, wherein the valve body 1 comprises a main body pipe part 11 extending along a first direction, a water inlet pipe part 12 and a water outlet pipe part 13 which are connected to the main body pipe part 11 at intervals along the first direction, and a body cold water pipe part 14 and a body hot water pipe part 15 which are connected to the main body pipe part 11 at intervals along the first direction, the body cold water pipe part 14 is provided with a cold water outlet channel 141, the body hot water pipe part 15 is provided with a hot water inlet channel 151, the water inlet pipe part 12 is provided with a cold water inlet channel 121, and the water outlet pipe part 13 is provided with a water mixing cavity 131 and a water mixing outlet channel 132. The main body pipe part 11 is provided with a mixed cold water channel 113 communicating the water mixing chamber 131 and the cold water inlet channel 121, a water inlet electricity preventing wall structure 111 communicating the cold water inlet channel 121 and the cold water outlet channel 141, and a water outlet electricity preventing wall structure 112 communicating the hot water inlet channel 151 and the water mixing chamber 131.

When the water mixing valve is used, cold water enters the water mixing valve from the cold water inlet channel 121, wherein one path of cold water sequentially passes through the cold water inlet channel 121, the cold water electricity-proof wall structure 111 and the cold water mixing water outlet channel 132 to be introduced into the inner container of the water heater, so that cold water inlet of the inner container of the water heater is realized, and the other path of cold water can enter the water mixing cavity 131 through the mixed cold water channel 113; the hot water in the inner container of the water heater sequentially enters the water mixing cavity 131 through the hot water inlet channel 151 and the water outlet electricity-proof wall structure 112 and is mixed with cold water, and the mixed warm water flows out of the water mixing valve through the water mixing outlet channel 132.

In this embodiment, the water inlet waterproof wall structure 111 and the water outlet waterproof wall structure 112 are arranged side by side in the second direction, the cold water pipe portion 14 and the hot water pipe portion 15 are arranged along the third direction, and the first direction, the second direction and the third direction are perpendicular to each other. On a projection plane perpendicular to the third direction, a first acute angle α is formed between a central line of the projection center of the cold water outlet channel 141 and the projection center of the hot water inlet channel 151 and the first direction, and the projection center of the cold water outlet channel 141 and the projection center of the hot water inlet channel 151 are respectively located at two sides of the center line of the main body pipe 11.

The water mixing valve provided in this embodiment, through setting up the extending direction of main body pipe portion 11 with the center line slope of cold water outlet channel 141 and hot water inlet channel 151, can be when intaking prevent electric wall structure 111 and go out electric wall structure 112 and set up side by side in main body pipe portion 11, make cold water outlet channel 141 can be close to intaking prevent electric wall structure 111 setting, and hot water inlet channel 151 can be close to out electric wall structure 112 setting, even make cold water outlet channel 141 and intaking prevent electric wall structure 111 can be in the second orientation setting of counterpointing, hot water inlet channel 151 and go out electric wall structure 112 can be in the second orientation setting of counterpointing, thereby can increase the intercommunication mouth size between cold water inlet channel 141 and the electric wall structure 111 and increase the intercommunication mouth size between hot water inlet channel 151 and the electric wall structure 112, and then can increase the cold water outlet flow and the hot water inlet flow of water mixing valve, improve the use travelling comfort of water mixing valve.

For easy understanding, when the cold water outlet channel 141 and the hot water inlet channel 151 are arranged at the axial position of the main body pipe part 11, the size of the communication port is one half of that of the cold water inlet channel 141; this scheme is equivalent to on original basis, main part pipe portion 11 is rotatory alpha around its center, make water outlet channel 141 can be in the second direction with advance water and prevent electric wall structure 111 counterpoint better, hot water inlet channel 151 can be in the second direction with go out water and prevent electric wall structure 112 counterpoint better, at this moment, the size of intercommunication mouth is greater than cold water inlet channel 141's half, on mixing the unchangeable basis of water valve's overall dimension, the cold water outlet flow and the hot water inlet flow of water mixing valve have been increased, and do not change the interface distance between organism cold water pipe portion 14 and the organism hot water pipe portion 15, the commonality is better.

The water inlet and outlet electricity preventing

wall structures

111 and 112 are preferably provided in a Z-shape to extend the path of the water inlet and outlet electricity preventing

wall structures

111 and 112. The arrangement of the water inlet and outlet

anti-electric wall structures

111 and 112 can refer to the prior art, and will not be described herein.

In an embodiment, the first acute angle α is 1 ° to 15 °, which avoids the problem of the increase in the size of the main body pipe portion 11 in the second direction caused by the excessive first included angle, and improves the structural compactness of the water mixing valve. More preferably, the first acute angle is 3 ° to 9 °.

In an embodiment, the water inlet pipe portion 12 and the water outlet pipe portion 13 are arranged in parallel and at intervals, and a second acute angle β is formed between the water inlet pipe portion 12 and the main pipe portion 11, wherein β=90° - α. The second acute angle can ensure that the relative positions of the water inlet pipe part 12 and the water outlet pipe part 13 and the machine body cold water pipe part 14 and the machine body hot water pipe part 15 are basically unchanged when the main body pipe part 11 is arranged in a deflection manner relative to the central connecting line of the machine body cold water pipe part 14 and the machine body hot water pipe part 15, namely the connection positions of the water mixing valve and the external pipe part are basically unchanged, so that the structural improvement of the water mixing valve can be reduced, the improvement cost is reduced, and the universality of the water mixing valve is improved.

As shown in fig. 1, 5 and 6, to detect the water outlet flow of the water mixing valve, the water mixing valve further includes a water outlet flow detecting device 2, and a detecting portion of the water outlet flow detecting device 2 extends into the water mixing outlet channel 132 to detect the water outlet flow in the water mixing outlet channel 132. By providing the water discharge flow rate detection device 2 at the water mixing water discharge channel 132, the problem that the water flow is mistaken by the control system of the water heater when the water flow fluctuates is caused by frequent start and stop of the driving motor when the user uses water is prevented.

In one embodiment, the outlet flow detecting device 2 is a rotameter, which includes a mounting housing 21 and a flow rotor 22 rotatably mounted on the mounting housing 21, wherein the rotation axis of the flow rotor 22 is perpendicular to the extending direction of the mixed water outlet channel 132, and the flow rotor 22 is at least partially located in the mixed water outlet channel 132. When water passes through the mixed water outlet channel 132, the flow of water pushes the flow rotor 22 to rotate, and the faster the water flow speed is, the larger the water flow is, the faster the flow rotor 22 rotates, so that the flow in the mixed water outlet channel 132 can be judged by detecting the rotating speed of the flow rotor 22. The structure of the rotor flowmeter and the principle of detecting the flow can refer to the prior art, which is not the focus of the utility model and will not be described herein.

In one embodiment, the valve body 1 is provided with a mounting cavity 1331, and the mounting cavity 1331 is communicated with the mixed water outlet channel 132 and penetrates through one side wall of the valve body 1 to form a mounting opening, and the water outlet flow detection device 2 can be inserted into the mounting cavity from the mounting opening and can seal the mounting opening. Through setting up the installation cavity 1331 with mixing water outlet channel 132 intercommunication, can improve the dismouting convenience of play water flow detection device 2 for play water flow detection device 2 can insert or withdraw from installation cavity 1331's mode dismouting from the installing port, simplify the dismouting and the maintenance convenience of play water flow detection device 2.

The installation cavity 1331 is preferably a cylindrical cavity, and the cross-sectional area of the installation cavity 1331 is larger than that of the mixed water outlet channel 132 to ensure that a sufficient installation space is provided for the outlet flow rate detecting device 2. In an embodiment, the water outlet pipe 13 has a mounting barrel 133 with an opening at one end, the cross-sectional area of the mounting barrel 133 is larger than the cross-sectional area of the main structure of the mixed water outlet channel 132, the inner cavity of the mounting barrel 133 forms the mounting cavity, and the opening of the mounting barrel 133 forms the mounting opening.

In order to prevent water flow from flowing out of the valve body 1 through the opening of the installation cavity 1331, a sealing ring 4 is arranged between the installation shell 21 and the cavity wall of the installation cavity 1331, and the sealing ring 4 is positioned between the mixed water outlet channel 132 and the installation opening. Specifically, a sealing groove is formed in the outer peripheral wall of the installation shell 21, the sealing ring 4 is accommodated in the sealing groove, and the inner side and the outer side are respectively and tightly attached to the groove bottom of the sealing groove and the cavity wall of the installation cavity 1331.

For realizing the installation location of play water flow detection device 2, be provided with spacing step face on the chamber wall of installation cavity 1331, spacing step face is towards the installing port, and spacing step face is located between mixing water outlet channel 132 and the installing port, installation shell 21 has the location step face towards flow rotor 22, location step face butt is in spacing step face, can restrict the position that goes out water flow device and insert in installation cavity 1331 from this, avoid play water flow detection device 2 to insert the too big and result in flow rotor 22 to damage easily of the degree of depth of installation cavity 1331, improve play water flow detection device 2's safety in utilization and reliability.

In an embodiment, to improve the convenience of disassembly of the water outlet flow detection device 2, the water outlet flow detection device 2 is completely inserted into the installation cavity 1331, the water mixing valve further comprises a sealing plate 3, the sealing plate 3 is detachably connected with the valve body 1 and seals the opening of the installation cavity 1331, and the water outlet flow detection device 2 is clamped between the sealing plate 3 and the cavity bottom of the installation cavity 1331. That is, when the water outlet flow rate detecting device 2 needs to be disassembled, the sealing plate 3 is disassembled from the valve body 1, so that the water outlet flow rate detecting device can be pulled out from the mounting cavity 1331; when the water outlet flow detection device 2 is required to be installed, the water outlet flow detection device 2 is inserted into the installation cavity 1331, the positioning step surface of the water outlet flow detection device 2 is abutted against the limiting step surface, and the sealing plate 3 is installed on the valve body 1 to be abutted against the water outlet flow detection device 2.

To improve the convenience of mounting the sealing plate 3, the valve body 1 includes a mounting boss 134 protruding outwardly along the outer side wall of the water outlet pipe portion 14, the mounting boss 134 having a mounting surface perpendicular to the rotational axis of the flow rotor 22, and the sealing plate 3 being mounted on the mounting surface and detachably connected to the mounting boss 134. Further, a mounting boss 134 is provided at the opening end face of the mounting cylinder portion 133 and extends outward in the radial direction of the mounting cylinder portion 133.

The sealing plate 3 is preferably connected to the mounting boss 134 by a screw member to improve the mounting stability of the sealing plate 3 on the valve body 1. The screw is preferably rectangular provided with four.

In an embodiment, the mounting opening is located on a side of the valve body 1 away from the body water inlet channel 151, that is, on a side of the body away from the hot water pipe portion 15, so that after the water mixing valve is mounted, the mounting opening is located on a side of the valve body 1 away from the water heater, thereby providing enough space for mounting and dismounting the water outlet flow detection device 2 and improving the mounting and dismounting convenience of the water outlet flow detection device 2.

In order to improve the installation convenience of the water outlet flow device, the water mixing valve further comprises a flow receiver 6, wherein the flow receiver 6 is arranged on the water outlet pipe part 13 and is used for receiving a flow signal detected by the water outlet flow device so as to transmit the flow signal to a main controller of the water heater.

In an embodiment, to improve the installation convenience of the flow receiver 6, the water outlet pipe portion 13 is provided with a mounting blind hole 1351, the flow receiver 6 is mounted in the mounting blind hole 1351 to provide positioning for the installation of the flow receiver 6, and the mounting blind hole 1351 is filled with waterproof glue, so that the flow receiver 6 is wrapped by the waterproof glue to achieve fixation and waterproof of the flow receiver 6.

The flow receiver 6 is connected with a signal transmission line 7, and the signal transmission line 7 is used for being connected with a main controller of the water heater. The mounting blind hole 1351 preferably opens upwardly so that the signal transmission line 7 can extend straight upwardly to connect with the master, avoiding buckling of the signal transmission line 7. In other embodiments, the communication transmission between the water flow detection device 2 and the controller can also be realized in a wireless transmission manner.

In an embodiment, the water outlet pipe portion 13 is further provided with a water outlet temperature detecting device 5, and a detecting probe of the water outlet temperature detecting device 5 extends into the mixed water outlet channel 132 for detecting the water outlet temperature of the water mixing valve. The installation of the outlet water temperature detecting device 5 on the valve body 1 can refer to the prior art, and will not be described herein.

In an embodiment, the outer wall of the bottom of the mounting barrel 133 is provided with a mounting protrusion 135, and the mounting protrusion 135 is provided with the mounting blind hole 1351, so as to ensure the depth of the mounting blind hole 1351.

Other structures of the water mixing valve can be set with reference to the prior art, which is not the focus of the present utility model and will not be described herein.

The embodiment of the utility model also provides a water heater, which comprises the water mixing valve. Through adopting foretell water mixing valve, can increase the business turn over discharge of water heater, improve the use experience of water heater.

In the specific content of the above embodiment, any combination of the technical features may be performed without contradiction, and for brevity of description, all possible combinations of the technical features are not described, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.

The foregoing detailed description of the embodiments presents only a few embodiments of the present utility model, which are described in some detail and are not intended to limit the scope of the present utility model. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the utility model, which are all within the scope of the utility model. Accordingly, the scope of protection of the present utility model is to be determined by the appended claims.

Claims

1. The water mixing valve comprises a valve body (1), wherein the valve body (1) is provided with a cold water inlet channel (121), a water mixing cavity (131) and a water mixing outlet channel (132), and is characterized in that the valve body (1) comprises a main body pipe part (11) extending along a first direction and a machine body cold water pipe part (14) and a machine body hot water pipe part (15) which are connected to the main body pipe part (11) at intervals, the machine body cold water pipe part (14) is provided with a cold water outlet channel (141), the machine body hot water pipe part (15) is provided with a hot water inlet channel (151), the main body pipe part (11) is provided with a water inlet electric wall structure (111) which is communicated with the cold water outlet channel (141) and the cold water inlet channel (121) and a water outlet electric wall structure (112) which is communicated with the hot water inlet channel (151), the water inlet electric wall structure (111) and the water outlet electric wall structure (112) are arranged side by side in a second direction, the machine body cold water pipe part (14) and the machine body hot water pipe part (15) are arranged in parallel in the second direction, and the machine body cold water pipe part (14) and the machine body hot water pipe part (15) are arranged in the first direction and the third direction and the second direction, and the third direction are perpendicular to each other;

on a projection plane perpendicular to the third direction, a first acute angle alpha is formed between a central connecting line of the projection center of the cold water outlet channel (141) and the projection center of the hot water inlet channel (151) and the first direction, and the projection center of the cold water outlet channel (141) and the projection center of the hot water inlet channel (151) are respectively positioned at two sides of the central line of the main body pipe part (11).

2. The mixing valve of claim 1, wherein the first acute angle α is 1 ° to 15 °.

3. The water mixing valve according to claim 1, characterized in that the valve body (1) has a water inlet pipe portion (12) and a water outlet pipe portion (13) which are connected to the main body pipe portion (11) at intervals, the water inlet pipe portion (12) has the cold water inlet channel (121), the water outlet pipe portion (13) has the water mixing outlet channel (132), the water inlet pipe portion (12) and the water outlet pipe portion (13) are arranged in parallel and at intervals, and a second acute angle β, β=90 ° - α is provided between the water inlet pipe portion (12) and the main body pipe portion (11).

4. A mixing valve according to any one of claims 1-3, characterized in that the mixing valve further comprises a water outlet flow detection device (2), the detection part of the water outlet flow detection device (2) extending into the mixing water outlet channel (132).

5. The water mixing valve according to claim 4, wherein a mounting cavity (1331) is arranged on the valve body (1), the mounting cavity (1331) is communicated with the water mixing outlet channel (132) and penetrates through one side wall of the valve body (1) to form a mounting port, and the water outlet flow detection device (2) can be installed in the mounting cavity (1331) through the mounting port and is sealed;

and/or, the water outlet flow detection device (2) is a rotameter, the rotameter comprises a mounting shell (21) and a flow rotor (22) rotatably mounted on the mounting shell (21), the rotation axis of the flow rotor (22) is perpendicular to the extending direction of the water mixing outlet channel (132) and the first direction, and the flow rotor (22) is at least partially positioned in the water mixing outlet channel (132).

6. The mixing valve according to claim 5, characterized in that the mounting opening is located at a side of the valve body (1) remote from the hot water inlet channel (151).

7. The water mixing valve according to claim 5, wherein a cavity wall of the installation cavity (1331) is provided with a limiting step surface facing the installation opening, and an outer side wall of the water outlet flow detection device (2) is provided with a positioning step surface, and the positioning step surface is abutted with the limiting step surface;

the water mixing valve further comprises a sealing plate (3), the sealing plate (3) is detachably connected with the valve body (1) and seals the mounting opening, and the sealing plate (3) is abutted to the end face of the water outlet flow detection device (2).

8. The mixing valve according to claim 5, further comprising a flow receiver (6), the flow receiver (6) being adapted to receive a detection signal of the outlet flow detection device (2);

the outer side wall of the valve body (1) is provided with an installing blind hole (1351) with an upward opening, the flow receiver (6) is installed in the installing blind hole (1351), and the flow receiver (6) is connected with a signal transmission line (7).

9. The mixing valve according to claim 8, characterized in that the mounting blind hole (1351) is filled with a waterproof glue, which wraps around the flow receiver (6).

10. Water heater comprising a mixing valve according to any of claims 1-9.