CN219976768U - Flow path assembly and water heater - Google Patents

Abstract

The utility model discloses a flow path assembly and a water heater. The flow path assembly of the embodiment of the utility model is used for a water heater and comprises a pipe fitting and an opening control device. The pipe fitting supplies fluid to flow into the water heater; the opening control device comprises a valve body and a deformation element connected with the valve body, wherein the deformation element drives the valve body to move relative to the pipe fitting in the deformation process so as to adjust the opening of the pipe fitting. In the flow path assembly of the embodiment of the utility model, the opening control device can adjust the opening of the pipe fitting when parameters such as the inlet water temperature, the water pressure and the like are changed, so that the fluid flow passing through the pipe fitting is adjusted, and the outlet water temperature can be constant.

Description

Flow path assembly and water heater

Technical Field

The utility model relates to the technical field of household appliances, in particular to a flow path assembly and a water heater.

Background

The water heater is an electric appliance which can rapidly heat liquid through electronic heating components and can control the temperature, flow rate, power and the like of the liquid through a circuit so that the water temperature reaches the temperature suitable for bathing of a human body. In the related art, a water heater controls the power of the water heater so as to constantly control the water temperature in the water heater within a certain range. However, the water using environment is various, the parameters such as the water inlet temperature, the water pressure and the like are complex and changeable, and the water outlet temperature of the water heater is greatly changed.

Disclosure of Invention

The utility model provides a flow path assembly and a water heater.

The flow path assembly of the embodiment of the utility model is used for a water heater and comprises:

a pipe fitting for fluid to flow into the water heater;

the opening control device comprises a valve body and a deformation element connected with the valve body, wherein the deformation element drives the valve body to move relative to the pipe fitting in the deformation process so as to adjust the opening of the pipe fitting.

In the flow path assembly of the embodiment of the utility model, the opening control device can adjust the opening of the pipe fitting when parameters such as the inlet water temperature, the water pressure and the like are changed, so that the fluid flow passing through the pipe fitting is adjusted, and the outlet water temperature can be constant.

In some embodiments, the opening control device includes a fixing part, the fixing part is disposed in the pipe and is fixedly connected with the pipe, the fixing part is provided with a fluid channel and a liquid inlet hole communicated with the fluid channel, the valve body is at least partially movably inserted into the fluid channel, and the valve body adjusts the opening of the liquid inlet hole in the process of moving relative to the fixing part, so as to adjust the opening of the pipe.

In some embodiments, the fixing member includes a central tube formed with the fluid passage and a flange connected to the central tube, the flange being formed with the liquid inlet hole.

In some embodiments, one end of the deformable element rests on the flange.

In some embodiments, the deformation element is sleeved on the central tube.

In some embodiments, the valve body includes an intermediate stem and a bonnet coupled to an end of the intermediate stem, the intermediate stem being at least partially movably inserted within the fluid passageway, the bonnet defining a fluid outlet aperture in communication with the fluid passageway.

In some embodiments, the opening control device includes a moving member, one end of the moving member is connected with the deformation element, the other end of the moving member is connected with the valve cap, the central tube is at least partially inserted into the moving member, and the moving member slides relative to the central tube in the deformation process of the deformation element, so as to drive the valve cap to move, thereby driving the intermediate rod to move.

In certain embodiments, the bonnet is sealingly coupled to an inner wall of the tube.

In certain embodiments, the deformation element comprises a memory alloy element.

The water heater according to the embodiment of the utility model comprises:

the flow path assembly of any one of the above embodiments; and

a housing in which the flow path assembly is mounted.

Additional aspects and advantages of the utility model will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the utility model.

Drawings

The foregoing and/or additional aspects and advantages of the present utility model will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings, in which:

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

fig. 2 is a schematic diagram of the structure of an opening degree control device according to an embodiment of the present utility model;

fig. 3 is a sectional view in A-A direction of the opening degree control device of fig. 2;

fig. 4 is a schematic diagram of the structure of an opening degree control device according to an embodiment of the present utility model;

fig. 5 is a schematic view of a water heater according to an embodiment of the present utility model.

Description of main reference numerals:

a flow path assembly 100; a water heater 1000; a pipe member 10; an opening degree control device 20; a valve body 21; a deformation element 22; a water inlet 1001; a fixing member 23; a fluid channel 230; a liquid inlet 231; a central tube 232; a flange 233; an intermediate lever 210; a bonnet 211; a liquid outlet hole 2110; a moving member 24; an inner wall 11 of the tube; a memory alloy element 220; a housing 1002; a heating part 1003; a water outlet 1004; a temperature sensor 1005; and a main control board 1006.

Detailed Description

Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary only for explaining the present utility model and are not to be construed as limiting the present utility model.

In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a 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 of the described features. In the description of the present utility model, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.

In the description of the present utility model, 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 connected, electrically connected or can be communicated with each other; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

In the present utility model, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.

The following disclosure provides many different embodiments, or examples, for implementing different features of the utility model. In order to simplify the present disclosure, components and arrangements of specific examples are described below. They are, of course, merely examples and are not intended to limit the utility model. Furthermore, the present utility model may repeat reference numerals and/or letters in the various examples, which are for the purpose of brevity and clarity, and which do not themselves indicate the relationship between the various embodiments and/or arrangements discussed. In addition, the present utility model provides examples of various specific processes and materials, but one of ordinary skill in the art will recognize the application of other processes and/or the use of other materials.

Referring to fig. 1, 2 and 3, a flow path assembly 100 according to an embodiment of the present utility model is used for a water heater 1000, and the flow path assembly 100 includes a pipe 10 and an opening degree control device 20. The pipe 10 supplies fluid to the water heater 1000; the opening control device 20 comprises a valve body 21 and a deformation element 22 connected with the valve body 21, wherein the deformation element 22 drives the valve body 21 to move relative to the pipe fitting 10 in the deformation process so as to adjust the opening of the pipe fitting 10.

In the flow path assembly 100 according to the embodiment of the present utility model, the opening degree control device 20 may adjust the opening degree of the pipe 10 when the parameters such as the inlet water temperature, the water pressure, etc. are changed, thereby adjusting the fluid flow rate through the pipe 10 so that the outlet water temperature can be constant.

Specifically, the water heater 1000 may be an instant water heater, a volumetric water heater, or the like, and the cross-sectional shape of the pipe 10 may be regular, such as square, circular, or the like, or irregular. The pipe 10 may be connected to the water inlet 1001 of the water heater 1000, and fluid may enter the water inlet 1001 by connecting an extraction conduit at the water inlet 1001 and further into the pipe 10.

The opening degree control device 20 is a device that can control the opening degree of the pipe 10 by changing the position of at least part of its own components with respect to the pipe 10. The opening degree control device 20 may be provided in the pipe 10 or may be provided at an end face of the pipe 10. The valve body 21 may be a single-channel valve or a multi-channel valve. For example, the valve body 21 is a single-channel valve, i.e., fluid may flow into the opening control device 20 from a first end of the valve body 21, which is the end of the valve body 21 near the water inlet 1001, and out of the opening control device 20 from a second end of the valve body 21.

During the relative movement of the valve body 21 and the pipe 10, the distance between the valve body 21 and the inner wall of the pipe 10 will be reduced or enlarged. For example, one of the valve body 21 and the inner wall may be provided with a slope, and when the valve body 21 and the inner wall are close to each other, the distance between the valve body 21 and the inner wall of the pipe 10 is reduced, so that the opening degree of the pipe 10 is reduced, and the flow rate of fluid flowing through the valve body 21 is reduced, so that the flow rate of fluid flowing into the water heater 1000 is reduced. In the case where the power of the water heater 1000 is not changed, the flow rate of the fluid flowing into the water heater 1000 is reduced, and the outlet temperature of the water heater 1000 is increased.

The deformation component can be a component capable of deforming according to the water temperature and pressure of the fluid, and the deformation is elastic deformation. Referring to fig. 3, in some embodiments, the deformation element 22 may be a memory alloy element 220, further, the deformation element 22 may be a memory alloy spring, and the memory alloy spring may be fixedly connected to the valve body 21, and the fixed connection may be a welding connection, a snap connection, or the like. When the temperature of the fluid changes, the memory alloy spring can deform to different degrees, so that the valve body 21 is driven to move relative to the pipe fitting 10, and the opening degree of the pipe fitting 10 is adjusted.

Referring to fig. 3 and 4, in some embodiments, the opening control device 20 includes a fixing member 23, where the fixing member 23 is disposed in the pipe 10 and is fixedly connected to the pipe 10, the fixing member 23 is provided with a fluid channel 230 and a liquid inlet 231 communicating with the fluid channel 230, and the valve body 21 is at least partially movably inserted into the fluid channel 230, and the valve body 21 adjusts the opening of the liquid inlet 231 during moving relative to the fixing member 23, so as to adjust the opening of the pipe 10.

In this way, the fixing piece 23 is arranged so that the valve body 21 can be matched with the pipe fitting 10 with different sizes, when the size of the valve body 21 is not matched with the size of the pipe fitting 10, the fixing piece 23 can be connected with the pipe fitting 10, and the opening of the liquid inlet 231 of the fixing piece 23 is controlled, so that the opening of the pipe fitting 10 is controlled.

Specifically, the fixing member 23 may be a solid of revolution, the fixing member 23 may be in sealing connection with the pipe 10, and further, the fixing member 23 may be installed in the pipe 10 by means of transition fit, snap connection, etc. The fluid passage 230 may be formed by a through hole penetrating an axial end surface of the fixing member 23, and the fluid inlet 231 of the fixing member 23 may be a hole extending in an axial direction of the fixing member 23, provided near the water inlet 1001 of the water heater 1000 (shown in fig. 1). After the fluid flows into the pipe 10 through the water inlet 1001 of the water heater 1000, the fluid further flows to the fixing member 23 through the fluid inlet 231 and flows out of the fixing member 23 through the fluid passage 230. The fluid passage 230 may be a linear passage, a zigzag passage, etc., and the flow rate of fluid flowing through the fluid passage 230 may be controlled by the valve body 21.

The valve body 21 and the fluid passage 230 may have a variable spacing therebetween, and further, the spacing between the valve body 21 and the fluid passage 230 may be reduced or increased during movement of the valve body 21 relative to the fluid passage 230. For example, during the process that the valve body 21 is far away from the liquid inlet, the distance between the valve body 21 and the fluid channel 230 is gradually increased, so that the flow rate of the fluid flowing through the fluid channel 230 becomes larger, and thus the flow rate of the fluid flowing into the water heater 1000 becomes larger. In the case where the power of the water heater 1000 is not changed, the flow rate of the fluid flowing into the water heater 1000 becomes large, and the outlet temperature of the water heater 1000 is lowered.

Referring to fig. 3, in some embodiments, the fixing member 23 includes a central tube 232 and a flange 233 connected to the central tube 232, the central tube 232 is formed with a fluid channel 230, and the flange 233 is formed with a fluid inlet 231.

In this way, fluid can enter the fluid channel 230 through the flange 233, and the flange 233 enables a larger contact area between the fixing piece 23 and the fluid, so that the impact force of the fluid on the fixing piece 23 in unit area is reduced.

Specifically, the central tube 232 may be a tube of a regular shape such as a circle or a square, or may be a tube of an irregular shape. The flange 233 may be connected to an end of the central tube 232 near the water inlet 1001 of the water heater 1000 (shown in fig. 1), a projected area of the flange 233 parallel to a direction of fluid flow may be larger than a projected area of the central tube 232, and an end surface of the flange 233 facing the water inlet 1001 may be substantially perpendicular to the direction of fluid flow. The liquid inlet 231 may be a through hole penetrating the flange 233 in the thickness direction of the flange 233, and the liquid inlet 231 may be a regular shape such as a circular shape or a square shape, or may be an irregular shape.

Wherein the flow direction of the fluid is shown in the figure in broken line segments with arrows.

Referring to fig. 4, in some embodiments, one end of the deformation element 22 abuts the flange 233.

In this way, the deformation member 22 is easily installed, and the deformation member 22 can be stably disposed on the flange 233.

Specifically, in the thickness direction of the flange 233, the deformation element 22 may abut against an end surface of the flange 233 on a side away from the water inlet 1001 of the water heater 1000 (shown in fig. 1).

Referring to fig. 3 and 4, in some embodiments, the deformation member 22 is disposed around the central tube 232.

Thus, the deformation element 22 can deform along the axial direction of the central tube 232, and the deformation element 22 is not easy to shake, so that the movement of the deformation process is kept smooth, and the service life of the deformation element 22 is prolonged.

Specifically, the deformation element 22 may be sleeved on the outer wall of the central tube 232 along the axial direction of the central tube 232. During deformation of the deformation element 22, at least a portion of the structure of the deformation element 22 may move relative to the central tube 232.

Referring to fig. 3, in some embodiments, the valve body 21 includes a middle stem 210 and a bonnet 211 coupled to one end of the middle stem 210, the middle stem 210 being at least partially movably inserted into the fluid passage 230, the bonnet 211 defining a fluid outlet port 2110 in communication with the fluid passage 230.

In this manner, during the movement of the intermediate rod 210 relative to the fluid passage 230, the flow rate of fluid out of the valve body 21 through the outlet is controlled, so that the opening degree of the pipe 10 is controlled, and thus the flow rate into the water heater 1000 (shown in fig. 1) is controlled.

Specifically, the intermediate rod 210 may move in the direction in which the fluid passage 230 extends, and further, the intermediate rod 210 may be close to or away from the liquid inlet 231. The end of the intermediate rod 210 near the liquid inlet 231 may be designed to be a smooth curved surface to reduce the fluid impact force per unit area and improve the service life of the intermediate rod 210.

The bonnet 211 and the intermediate stem 210 may be integrally formed or separately formed structures. In an embodiment of the present utility model, the valve cap 211 and the intermediate rod 210 are integrally formed for convenience of processing and mass production, and the valve cap 211 may be coupled to an end of the intermediate rod 210 remote from the liquid inlet 231. The shape of the liquid outlet can be a regular shape such as a round shape, a square shape and the like, or an irregular shape. For example, the liquid outlet may comprise four sub-liquid outlets with a fan-shaped cross-section.

Referring to fig. 3, in some embodiments, the opening control device 20 includes a moving member 24, one end of the moving member 24 is connected to the deformation element 22, the other end of the moving member 24 is connected to the bonnet 211, a central tube 232 is at least partially inserted into the moving member 24, and the moving member 24 slides relative to the central tube 232 during deformation of the deformation element 22, so as to drive the bonnet 211 to move, thereby driving the middle rod 210 to move.

In this way, the moving member 24 drives the intermediate rod 210 to move, so that the distance between the intermediate rod 210 and the fluid channel 230 is reduced or increased, and the fluid flow out of the valve body 21 is controlled, and thus the fluid flow into the water heater 1000 (shown in fig. 1) is controlled.

Specifically, the moving member 24 may be an annular structure, further, the moving member 24 may include a through hole penetrating the moving member 24 along a thickness direction of the moving member 24, the central tube 232 may be at least partially inserted into the moving member 24 through the through hole, one end of the moving member 24 near the liquid inlet 231 may be fixedly connected to the deformation element 22, and the moving member 24 may be linked with the deformation element 22. Along the thickness direction of the moving member 24, the moving member 24 may further support the valve cap 211, and in the moving process of the moving member 24, the valve cap 211 moves along with the moving member 24, so that the middle rod 210 moves along with the moving member 24, and the distance between the middle rod 210 and the inner wall of the central tube 232 is changed, thereby realizing control of the fluid flow through the fluid channel 230, and further realizing control of the water outlet temperature of the water heater 1000.

In some embodiments, a sealing ring is provided between the moving member 24 and the valve cap 211 to prevent fluid from passing through a connection gap between the moving member 24 and the valve cap 211, thereby securing functional stability of the opening degree control apparatus 20.

Referring to FIG. 3, in some embodiments, the bonnet 211 is sealingly coupled to the inner wall 11 of the tubular 10.

In this way, when the fluid flows to the opening degree control device 20, the fluid flows into or out of the valve body 21 only through the fluid passage 230, thereby avoiding the fluid from passing through the gap between the valve body 21 and the pipe 10, and thus ensuring the stability of the opening degree control of the pipe 10.

Specifically, the outer surface of the bonnet 211, which is close to the pipe 10, and the inner wall 11 of the pipe 10 can be in sealing connection through a transition fit and a clamping connection.

Referring to fig. 3 and 4, in some embodiments, the deformation element 22 includes a memory alloy element 220.

In this way, the deformation element 22 can control the flow rate of the fluid passing through the opening control device 20 according to the temperature of the fluid, thereby controlling the outlet water temperature of the water heater 1000 (shown in fig. 1).

Specifically, the memory alloy element 220 may be the above-mentioned memory alloy spring, and the memory alloy spring may deform according to the temperature of the fluid, and the memory alloy spring drives the moving member 24 to move during the deformation process, so as to drive the intermediate rod 210 to move, so that the inner wall distance between the intermediate rod 210 and the pipe 10 is changed, thereby controlling the fluid flow flowing out of the valve body 21, further controlling the fluid flow flowing into the water heater 1000, and further controlling the water outlet temperature of the water heater 1000.

In other embodiments, the memory alloy element 220 may be a sheet-shaped memory alloy sheet, which may be in sealing connection with the inner wall 11 of the pipe 10, and may include an opening, which may be reduced or enlarged according to the temperature of the fluid, so as to control the flow rate of the fluid passing through the memory alloy sheet, thereby controlling the opening degree of the pipe 10, and thus controlling the outlet water temperature of the water heater 1000 (shown in fig. 1).

Referring to fig. 1 and 5, a water heater 1000 according to an embodiment of the present utility model includes the flow path assembly 100 according to any of the above embodiments and a housing 1002, and the flow path assembly 100 is installed in the housing 1002.

In this manner, the flow path assembly 100 may control the outlet water temperature of the water heater 1000 by controlling the flow of fluid into the water heater 1000.

Specifically, the housing 1002 may include one or more through holes in which the flow path assembly 100 may be mounted by way of a threaded connection, a snap-fit connection, or the like. The water heater 1000 may include a heating member 1003 disposed in a housing 1002, the heating member 1003 being for heating a fluid, one end of the heating member 1003 may be in communication with the flow path assembly 100, and the other end of the heating member 1003 may be in communication with a water outlet 1004 of the water heater 1000. The flow path assembly 100 may control the outlet water temperature of the water heater 1000 by controlling the flow of fluid to the heating element 1003.

Referring to fig. 5, in some embodiments, the water heater 1000 may further include a temperature sensor 1005 and a main control board 1006, wherein the temperature sensor 1005 is disposed on the housing 1002 near the water outlet 1004, and the main control board 1006 is disposed in the housing 1002. The temperature sensor 1005 can acquire the water outlet temperature of the water heater 1000, and feed back temperature information to the main control board 1006, and the main control board 1006 can control the water outlet temperature of the water heater 1000 by controlling the power of the water heater 1000. It will be appreciated that in the case where the opening degree of the pipe 10 is controlled by the opening degree control device 20 so that the flow rate of the fluid flowing into the water heater 1000 is determined, the active plate controls the water outlet temperature of the water heater 1000 by controlling the power of the water heater 1000 so that the water outlet temperature of the water heater 1000 reaches a preset constant temperature.

In the description of the present specification, reference to the terms "one embodiment," "certain embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

While embodiments of the present utility model have been shown and described, it will be understood by those of ordinary skill in the art that: many changes, modifications, substitutions and variations may be made to the embodiments without departing from the spirit and principles of the utility model, the scope of which is defined by the claims and their equivalents.

Claims (10)

1. A flow path assembly for a water heater, the flow path assembly comprising:

a pipe fitting for fluid to flow into the water heater;

the opening control device comprises a valve body and a deformation element connected with the valve body, wherein the deformation element drives the valve body to move relative to the pipe fitting in the deformation process so as to adjust the opening of the pipe fitting.

2. The flow path assembly according to claim 1, wherein the opening control device comprises a fixing member disposed in the pipe member and fixedly connected to the pipe member, the fixing member is provided with a fluid passage and a liquid inlet hole communicating with the fluid passage, the valve body is at least partially movably inserted into the fluid passage, and the valve body adjusts the opening of the liquid inlet hole and thus the opening of the pipe member during movement relative to the fixing member.

3. The flow path assembly according to claim 2, wherein the fixture comprises a center tube formed with the fluid passage and a flange connected to the center tube, the flange formed with the liquid inlet.

4. A flow path assembly according to claim 3, wherein one end of the deformable element abuts the flange.

5. A flow path assembly according to claim 3, wherein the deformation element is sleeved on the central tube.

6. A flow path assembly according to claim 3, wherein the valve body comprises a central stem and a bonnet coupled to one end of the central stem, the central stem being at least partially movably inserted within the fluid passageway, the bonnet defining a fluid outlet aperture in communication with the fluid passageway.

7. The flow path assembly according to claim 6, wherein the opening control device comprises a moving member, one end of the moving member is connected to the deformation element, the other end of the moving member is connected to the valve cap, the center tube is at least partially inserted into the moving member, and the moving member slides relative to the center tube during deformation of the deformation element to drive the valve cap to move, so as to drive the intermediate rod to move.

8. The flow path assembly of claim 6, wherein the bonnet is sealingly coupled to an inner wall of the tube.

9. The flow path assembly of claim 1, wherein the deformation element comprises a memory alloy element.

10. A water heater, comprising:

the flow path assembly of any one of claims 1-9; and

a housing in which the flow path assembly is mounted.