Water inlet assembly and water heater

Abstract

The water inlet assembly comprises a water inlet installation base, a water inlet pipe assembly and a valve element assembly, the water inlet installation base is used for being installed on an inner container of the water heater, and the water inlet installation base is provided with a water passing channel, a first opening and a second opening, the water inlet pipe assembly is provided with a water inlet channel, one end of the water inlet pipe assembly is arranged at the second opening and connected with the water inlet mounting base, and the water inlet channel communicates with the water passing channel. The valve element assembly is arranged in the water passing channel and located between the first opening and the second opening, the valve element assembly is provided with a blocking position for cutting off the first opening and the water inlet channel and an opening position for communicating the first opening and the water inlet channel, the valve element assembly can reciprocate between the blocking position and the opening position, and the valve element assembly can move between the blocking position and the opening position. The water passing channel is used for allowing water to flow into the inner container or releasing pressure of the inner container. The water inlet assembly is simple in structure and has multiple functions.

Description

Technical Field

[0001] The utility model relates to the technical field of water heaters, in particular to a water inlet component and a water heater. Background Art

[0002] Water heaters are household appliances commonly used in people's daily lives. Water heaters usually include a water inlet assembly. The existing water inlet assembly has a single function and cannot effectively adapt to the needs of different usage environments. In order to increase the function, it is usually necessary to assemble it with other parts. This makes the assembly process and structure of the existing water inlet assembly complicated and its applicability poor. Utility Model Content

[0003] The main purpose of the utility model is to provide a water inlet assembly and a water heater. The water inlet assembly has a simple structure and multiple functions.

[0004] To achieve the above-mentioned purpose, the water inlet assembly proposed by the present invention is applied to a water heater, and the water inlet assembly includes:

[0005] A water inlet mounting seat, for mounting on the inner tank of the water heater, the water inlet mounting seat having a water passage and a first opening and a second opening communicating with the water passage, the first opening being for communicating with an external water source;

[0006] a water inlet pipe assembly having a water inlet channel, one end of the water inlet pipe assembly being disposed at the second opening and connected to the water inlet mounting seat, the water inlet channel being in communication with the water passage; and

[0007] A valve core assembly is provided in the water passage and located between the first opening and the second opening. The valve core assembly has a blocking position for cutting off the first opening and the water inlet passage and an open position for connecting the first opening and the water inlet passage. The valve core assembly can move back and forth between the blocking position and the open position. In the open position, the water passage is used to supply water to flow into the inner tank or to relieve pressure in the inner tank.

[0008] In one embodiment, the water passage includes a liquid inlet chamber, an internal leakage chamber, and an installation chamber that are connected in sequence. The liquid inlet chamber has the first opening, the installation chamber has the second opening, and an internal leakage port is formed at the connection between the liquid inlet chamber and the internal leakage chamber. The valve core assembly can be movably arranged at the internal leakage port to block or open the internal leakage port.

[0009] In one embodiment, the valve core assembly includes a valve seat and an internal leakage structure, the valve seat is arranged in the internal leakage cavity, a first connecting portion is provided on the outer wall of the valve seat, and a first matching portion is provided on the cavity wall of the internal leakage cavity, the first connecting portion and the first matching portion are detachably connected, and the internal leakage structure is arranged in the water inlet mounting seat and can be movably arranged on the valve seat.

[0010] In one embodiment, the first connecting portion includes a first external thread, the first matching portion includes a first internal thread, and the valve seat is threadably connected to the first internal thread in the water inlet mounting seat via the first external thread.

[0011] In one embodiment, the water inlet assembly further includes a water flow detection device, at least part of which is disposed on the valve core assembly to detect the flow of water flowing into the water passage.

[0012] In one embodiment, the water flow detection device includes a magnetic induction component and a magnetic component. The magnetic induction component is arranged on the water inlet mounting seat and is located outside the water flow channel. The magnetic component is arranged in the water flow channel and is located on the valve core assembly. The magnetic component can move synchronously with the valve core assembly. The magnetic induction component is used to output no induction signal when the valve core assembly cuts off the water flow channel, and output a level signal when the valve core assembly opens the water flow channel.

[0013] In one embodiment, the magnetic induction component is disposed on an outer side wall of the water inlet mounting seat, and the magnetic component is disposed at an end of the valve core assembly away from the first opening.

[0014] In one embodiment, the water inlet pipe assembly includes an inner tube and an outer tube, the inner tube has an ascending flow channel, the outer tube is sleeved on the outside of the inner tube, a descending flow channel and a descending water outlet are formed between the outer tube and the inner tube, and the outer tube is provided with a plurality of pipe wall water outlet holes connected to the descending flow channel, and one end of the inner tube is provided at the second opening and connected to the water inlet mounting seat.

[0015] In one embodiment, a third opening connected to the water flow channel is provided on the water inlet mounting seat, and the water inlet assembly further includes a leakage valve, the leakage valve having a leakage channel, the leakage valve being arranged outside the water flow channel, one end of the leakage valve being arranged at the third opening and being detachably connected to the water inlet mounting seat, and the leakage channel being connected to the water flow channel.

[0016] In one embodiment, the leakage valve includes a valve tube and a leakage structure, the valve tube has the leakage channel, the leakage structure can be movably arranged in the leakage channel to cut off or open the leakage channel, the third opening is provided on the side wall of the water inlet mounting seat, a second connecting portion is provided at one end of the valve tube, a second matching portion is provided at the third opening, and the second connecting portion and the second matching portion are detachably connected.

[0017] In one embodiment, the second connecting portion includes a second external thread, the second matching portion includes a second internal thread, and the valve tube is threadably connected to the second internal thread in the third opening via the second external thread;

[0018] And / or, a fourth opening connected to the external leakage channel is formed at one end of the valve tube away from the water inlet mounting seat, and the fourth opening and the second connecting portion are arranged at opposite ends of the valve tube along its length direction, and the fourth opening is used to allow the inner tank to release pressure to the outside.

[0019] In one embodiment, the leakage channel includes a liquid outlet cavity and a leakage cavity that are connected to each other, the liquid outlet cavity is connected to the water passage, the leakage cavity is used to communicate with an external pipeline, and a leakage port is formed at the connection between the liquid outlet cavity and the leakage cavity, and the leakage structure can be movably arranged at the leakage port to seal or open the leakage port.

[0020] In one embodiment, the leakage structure includes a leakage plug, a leakage elastic member and a leakage limiting member. The leakage plug is arranged at the leakage port, and the leakage limiting member is arranged at one end of the leakage channel away from the leakage plug and connected to the outside. One end of the leakage elastic member abuts against the leakage plug, and the other end of the leakage elastic member abuts against the leakage limiting member. The leakage elastic member is used to keep the leakage plug in a state of sealing and covering the leakage port.

[0021] The present invention also provides a water heater, which includes an inner tank and the water inlet assembly as described above. The inner tank is provided with a water inlet interface, the water inlet mounting seat is installed at the water inlet interface, and the water inlet pipe assembly is arranged in the inner tank.

[0022] The water inlet assembly of the utility model includes a water inlet mounting seat, a water inlet pipe assembly and a valve core assembly. The water inlet mounting seat is used to be installed on the inner tank of the water heater. One end of the water inlet pipe assembly is arranged at the second opening of the water inlet mounting seat and is connected to the water inlet mounting seat. The water inlet channel is communicated with the water flow channel. The valve core assembly is arranged in the water flow channel of the water inlet mounting seat and is located between the first opening and the second opening. In this way, the water inlet mounting seat can not only be used for installing the water inlet pipe assembly, but also for installing the valve core assembly. At the same time, the water inlet mounting seat is also used to be installed on the inner tank of the water heater. The water inlet mounting seat has multiple functions. , high structural utilization rate; and, when the water inlet mounting seat is not filled with water, the valve core assembly is in a blocking position, so that the hot water in the inner tank cannot flow back into the tap water pipe; when the water inlet pressure at the first opening of the water inlet mounting seat is greater than the first set value, the valve core assembly is in an open position, so that the water flows along the water passage and the water inlet passage into the inner tank of the water heater; when the pressure in the inner tank is greater than the second set value, the valve core assembly is in an open position, so that the water in the inner tank flows out to the tap water pipe along the water inlet passage and the water passage to release the pressure, that is, the water inlet assembly can realize the function of one-way water supply and safe pressure relief. It can be seen that the water inlet mounting seat of the present application has multiple functions, high structural utilization rate, and the valve core assembly can realize the function of one-way water supply and safe pressure relief in the water inlet mounting seat, that is, the utility model proposes a water inlet assembly with simple structure and multiple functions. Applying the water inlet assembly to the water heater is conducive to simplifying the assembly process of the water heater and reducing manufacturing costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying any creative work.

[0024] Figure 1 A partial structural diagram of an embodiment of a water inlet assembly provided by the utility model;

[0025] Figure 2 for Figure 1 A schematic diagram of the structure from another perspective;

[0026] Figure 3 for Figure 2 A cross-sectional view of the structure in FIG.

[0027] Figure 4 for Figure 3 Schematic diagram of some structures in ;

[0028] Figure 5 for Figure 4 Enlarged view of point A in the middle.

[0029] Description of Figure Numbers:

[0030] 10. Water inlet assembly;

[0031] 100, water inlet mounting seat; 110, water passage; 111, liquid inlet cavity; 112, internal drain cavity; 113, mounting cavity; 114, internal drain port; 115, first mating portion; 120, first opening; 130, second opening; 140, third opening; 141, second mating portion; 150, first mounting portion; 160, second mounting portion;

[0032] 200, water inlet pipe assembly; 210, water inlet channel; 220, inner pipe; 221, ascending flow channel;

[0033] 300, valve core assembly; 310, valve seat; 311, first connecting portion; 320, internal leakage structure; 321, internal leakage sealing plug; 322, internal leakage slide rod; 323, first internal leakage reset member; 324, clearance hole; 325, internal leakage cover; 326, second internal leakage reset member;

[0034] 400, water flow detection device; 410, magnetic induction component; 420, magnetic component;

[0035] 500, leakage valve; 510, valve tube; 511, leakage channel; 512, second connecting portion; 513, fourth opening; 514, liquid outlet cavity; 515, leakage cavity; 516, leakage port; 520, leakage structure; 521, leakage plug; 522, leakage elastic member; 523, leakage limiter; 524, leakage hole.

[0036] The realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0037] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts shall fall within the scope of protection of the present invention.

[0038] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture. If the specific posture changes, the directional indications will also change accordingly.

[0039] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present invention, the descriptions of "first", "second", etc. are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features limited to "first" and "second" may explicitly or implicitly include at least one of such features. In addition, if "and / or" or "and / or" appears in the full text, its meaning includes three parallel schemes. Taking "A and / or B" as an example, it includes scheme A, or scheme B, or a scheme in which A and B are satisfied at the same time. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is mutually contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0040] The utility model provides a water inlet assembly and a water heater comprising the water inlet assembly. The water inlet assembly has a simple structure and has multiple functions.

[0041] See also Figures 1 to 5 In one embodiment of the present invention, a water inlet assembly 10 is applied to a water heater. The water inlet assembly 10 includes a water inlet mounting seat 100, a water inlet pipe assembly 200, and a valve core assembly 300. The water inlet mounting seat 100 is used to be installed on the inner tank of the water heater. The water inlet mounting seat 100 has a water passage 110 and a first opening 120 and a second opening 130 connected to the water passage 110. The first opening 120 is used to connect to an external water source; the water inlet pipe assembly 200 has a water inlet passage 210. One end of the water inlet pipe assembly 200 is located at the second opening 130 and is connected to the water inlet mounting seat 10. 0 is connected, the water inlet channel 210 is connected to the water flow channel 110; the valve core assembly 300 is arranged in the water flow channel 110 and is located between the first opening 120 and the second opening 130, the valve core assembly 300 has a blocking position that cuts off the first opening 120 and the water inlet channel 210 and an open position that connects the first opening 120 and the water inlet channel 210, the valve core assembly 300 can move back and forth between the blocking position and the open position, in the open position, the water flow channel 110 is used to supply water to flow into the inner tank or to relieve pressure of the inner tank.

[0042] It can be understood that the water heater includes an inner tank. When the water inlet assembly 10 is applied to the water heater, the water inlet mounting seat 100 is installed on the inner tank of the water heater. The inner tank is provided with a water inlet interface. The water inlet mounting seat 100 is installed on the water inlet interface of the inner tank. The water inlet pipe assembly 200 extends into the inner tank along the water inlet interface. The valve core assembly 300 can be detachably arranged in the water passage 110 of the water inlet mounting seat 100, which makes it convenient to assemble the valve core assembly 300; the water inlet mounting seat 100 has a water passage 110 and a first opening 120 and a second opening 130 connected to the water passage 110. The first opening 120 is used to connect to an external water source, and the second opening 130 is used to install one end of the water inlet pipe assembly 200. The second opening 130 is also used to connect to the inner tank of the water heater, which improves the utilization rate of the water inlet mounting seat 100. The water inlet mounting seat 100 can be made of insulating material, such as but not limited to plastic material, which is conducive to reducing the risk of leakage of the water inlet assembly 10, thereby improving the reliability of the water inlet assembly 10.

[0043] Furthermore, the valve core assembly 300 is arranged in the water passage 110 and is located between the first opening 120 and the second opening 130. The first opening 120 is used to connect to an external water source, which can be a tap water pipe. The water inlet mounting seat 100 has a first mounting portion 150 at one end having the first opening 120. The first mounting portion 150 includes but is not limited to a threaded structure and a snap-fit structure. The water inlet mounting seat 100 can be detachably connected to the tap water pipe through the first mounting portion 150; the water inlet mounting seat 100 has a second mounting portion 160 at one end having the second opening 130. The second mounting portion 160 includes but is not limited to a threaded structure and a snap-fit structure. One end of the water inlet pipe assembly 200 can be snapped into the second opening 130, and the water inlet mounting seat 100 can also be detachably connected to the water inlet interface of the inner tank through the second mounting portion 160, which facilitates the installation of the water inlet pipe assembly 200 and facilitates the installation of the water inlet assembly 10 on the inner tank of the water heater.

[0044] Furthermore, the valve core assembly 300 has a blocking position that cuts off the first opening 120 and the water inlet channel 210 and an open position that connects the first opening 120 and the water inlet channel 210. The valve core assembly 300 can move back and forth between the blocking position and the open position under the action of water flow. When the valve core assembly 300 is in the blocking position, the valve core assembly 300 cuts off the water passage 110, and the external water source cannot flow into the water inlet channel 210 along the first opening 120, and the water in the liner cannot flow into the water inlet channel 210 along the water inlet channel 210. When the valve core assembly 300 is in the open position, the valve core assembly 300 guides the water through the water channel 110, and the water can flow through the water channel 110. If the water pressure at the first opening 120 is greater than the water pressure in the water inlet channel 210, the water can flow into the inner container along the water inlet channel 210. If the water pressure at the first opening 120 is less than the water pressure in the water inlet channel 210, the water in the inner container can flow out along the water inlet channel 210, that is, the inner container is depressurized. The specific structure of the valve core will be described in detail later and will not be repeated here.

[0045] The water inlet assembly 10 of the present invention includes a water inlet mounting seat 100, a water inlet pipe assembly 200 and a valve core assembly 300. The water inlet mounting seat 100 is used to be installed on the inner tank of the water heater. One end of the water inlet pipe assembly 200 is arranged at the second opening 130 of the water inlet mounting seat 100 and is connected to the water inlet mounting seat 100. The water inlet channel 210 is communicated with the water flow channel 110. The valve core assembly 300 is arranged in the water flow channel 110 of the water inlet mounting seat 100 and is located between the first opening 120 and the second opening 130. In this way, the water inlet mounting seat 100 can not only be installed for the water inlet pipe assembly 200, but also for the valve core assembly 300. At the same time, the water inlet mounting seat 100 is also used to be installed on the inner tank of the water heater. The water inlet mounting seat 100 has multiple functions and high structural utilization rate; and, when the water inlet mounting seat 100 is not filled with water, the valve core assembly 300 is in a blocked position, so that the hot water in the inner tank cannot flow back into the tap water pipe; when the water inlet pressure at the first opening 120 of the water inlet mounting seat 100 is greater than the first set value, the valve core assembly 300 is in an open position, so that the water flows along the water passage 110 and the water inlet passage 210 into the inner tank of the water heater; when the pressure in the inner tank is greater than the second set value, the valve core assembly 300 is in an open position, so that the water in the inner tank flows out to the tap water pipe along the water inlet passage 210 and the water passage 110 to relieve the pressure, that is, the water inlet assembly 10 can realize the functions of one-way water supply and safe pressure relief. It can be seen that the water inlet mounting seat 100 of the present application has multiple functions and high structural utilization, and the valve core assembly 300 can realize the functions of one-way water supply and safe pressure relief in the water inlet mounting seat 100. That is, the present invention proposes a water inlet assembly 10 with a simple structure and multiple functions. Applying the water inlet assembly 10 to the water heater is conducive to simplifying the assembly process of the water heater and reducing manufacturing costs.

[0046] See also Figures 3 to 5 In one embodiment, the water passage 110 includes a liquid inlet chamber 111, an internal leakage chamber 112 and an installation chamber 113 that are connected in sequence. The liquid inlet chamber 111 has a first opening 120, and the installation chamber 113 has a second opening 130. An internal leakage port 114 is formed at the connection between the liquid inlet chamber 111 and the internal leakage chamber 112. The valve core assembly 300 can be movably disposed at the internal leakage port 114 to block or open the internal leakage port 114.

[0047] It is understandable that a first mounting portion 150 is provided at one end of the liquid inlet chamber 111 away from the mounting chamber 113. The first mounting portion 150 includes an external thread or an internal thread. In this embodiment, the first mounting portion 150 includes an external thread, and the external thread is used to be threadedly connected to the tap water pipe, which helps to simplify the assembly process of the water heater. A second mounting portion 160 is provided at one end of the mounting chamber 113 away from the liquid inlet chamber 111. The second mounting portion 160 includes an external thread or an internal thread. In this embodiment, the second mounting portion 160 includes an internal thread, and the internal thread is used to be threadedly connected to the water inlet interface of the inner tank, which helps to simplify the assembly process of the water inlet assembly 10. In order to make full use of the space of the water passage 110, the valve core assembly 300 can be provided in the middle of the water passage 110. In this way, the valve core assembly 300 can avoid interference with the components at the first opening 120 and the second opening 130, and the valve core assembly 300 can move stably in the water passage 110.

[0048] See also Figure 4 and Figure 5 In one embodiment, the valve core assembly 300 includes a valve seat 310 and an internal leakage structure 320. The valve seat 310 is arranged in the internal leakage cavity 112. A first connecting portion 311 is provided on the outer wall of the valve seat 310. A first matching portion 115 is provided on the cavity wall of the internal leakage cavity 112. The first connecting portion 311 and the first matching portion 115 are detachably connected. The internal leakage structure 320 is arranged in the water inlet mounting seat 100 and is movably arranged on the valve seat 310.

[0049] It can be understood that the first connecting portion 311 and the first matching portion 115 are detachably connected to facilitate assembly of the valve seat 310. The detachable connection between the first connecting portion 311 and the first matching portion 115 includes but is not limited to: threaded connection or snap connection, which is not specifically limited here.

[0050] Furthermore, the internal leakage structure 320 includes an internal leakage sealing plug 321 , an internal leakage sliding rod 322 and a first internal leakage restoring member 323 . A step is formed between the liquid inlet chamber 111 and the internal leakage chamber 112, which faces the internal leakage port 114 of the internal leakage chamber 112. The internal leakage sealing plug 321 is provided to seal the internal leakage port 114. A clearance hole 324 is provided on the internal leakage sealing plug 321. One end of the internal leakage sliding rod 322 passes through the internal leakage sealing plug 321 from the clearance hole 324. There is a gap between the internal leakage sliding rod 322 and the clearance hole 324. The end of the internal leakage sliding rod 322 extending out of the clearance hole 324 is provided with an internal leakage covering portion 325 that seals and covers the clearance hole 324. The other end of the internal leakage sliding rod 322 is slidably matched with the valve seat 310. A first internal leakage reset component 323 is provided between the internal leakage sealing plug 321 and the valve seat 310. The first internal leakage reset component 323 is used to keep the internal leakage covering portion 325 in a state of sealing and covering the internal leakage port 114. A limiting portion facing the valve seat 310 is provided in the middle of the internal leakage slide rod 322, and a second internal leakage reset member 326 is provided between the limiting portion and the internal leakage sealing plug 321. The second internal leakage reset member 326 is used to keep the internal leakage covering portion 325 in a state of sealing and covering the clearance hole 324.

[0051] The internal leakage structure 320 has a positive opening pressure P1 and a negative opening pressure P2. The positive opening pressure is the direction of flow into the water heater's inner tank, and the negative opening pressure is the direction of flow out of the water heater's inner tank. When the water pressure P3 of the tap water passing through the liquid inlet chamber 111 is greater than P1, the tap water pushes the internal leakage sealing plug 321 toward the interior of the internal leakage chamber 112, pressing the first internal leakage reset member 323, opening the internal leakage port 114, and allowing tap water to flow into the water inlet channel 210 through the internal leakage port 114. When the pressure in the inner tank of the water heater is high, that is, the water pressure P4 in the inner tank is greater than P2, the water flowing out of the water inlet channel 210 to the internal leakage cavity 112 flows out from the gap between the internal leakage slide bar 322 and the give-way hole 324 and pushes the internal leakage covering part 325, so that the internal leakage slide bar 322 and the internal leakage covering part 325 move toward the liquid inlet cavity 111. At the same time, the second internal leakage reset part 326 is pressed, and the give-way hole 324 is opened. The water in the inner tank is discharged into the tap water pipe through the water inlet channel 210 and the give-way hole 324 to perform internal leakage decompression.

[0052] In one embodiment, the first connecting portion 311 includes a first external thread, and the first mating portion 115 includes a first internal thread. The valve seat 310 is threadedly connected to the first internal thread in the water inlet mounting base 100 via the first external thread. This arrangement facilitates quick and stable installation of the valve seat 310 in the water inlet mounting base 100, thereby simplifying the structure and assembly process of the water inlet assembly 10.

[0053] See also Figure 4 and Figure 5 In one embodiment, the water inlet assembly 10 further includes a water flow detection device 400 , at least part of which is disposed on the valve core assembly 300 to detect the water flow rate flowing into the water passage 110 .

[0054] It is understood that when tap water flows through the water passage 110 of the water inlet mounting seat 100 and into the water inlet pipe assembly 200 and the inner tank, the water flow detection device 400 transmits the detected water flow signal to the water heater controller. The water heater controller then determines the water flow rate of the water flowing into the water passage 110 based on identification and calculation. By disposing at least a portion of the water flow detection device 400 on the valve core assembly 300, this solution determines the water flow rate of the water flowing into the water inlet mounting seat 100 based on the position of the valve core assembly 300 within the water passage 110. When the water flow rate of the water flowing into the water passage 110 of the water inlet mounting seat 100 is greater than or equal to the target water flow rate, the water heater controller can control the water heater to stop heating, thereby improving the safety of the water heater.

[0055] In one embodiment, the water flow detection device 400 is integrated with the water inlet assembly 10. This arrangement eliminates the need for additional connecting pipes for installing the water flow detection device 400, reduces the number of joints in the water inlet assembly 10, makes the overall structure of the water inlet assembly 10 more compact, and also avoids the safety hazards caused by water heater leakage.

[0056] In one embodiment, the water flow detection device 400 includes a magnetic sensing component 410 and a magnetic component 420. The magnetic sensing component 410 is arranged on the water inlet mounting seat 100 and is located outside the water flow channel 110. The magnetic component 420 is arranged in the water flow channel 110 and is located on the valve core assembly 300. The magnetic component 420 can move synchronously with the valve core assembly 300. The magnetic sensing component 410 is used to output no induction signal when the valve core assembly 300 cuts off the water flow channel 110, and output a level signal when the valve core assembly 300 opens the water flow channel 110.

[0057] It is understandable that the water inlet mounting seat 100 is made of non-magnetic materials, such as plastic. The magnetic sensing component 410 is arranged outside the water passage 110, and the magnetic component 420 is arranged on the valve core assembly 300 and can move synchronously with the internal leakage structure 320 of the valve core assembly 300. When the valve core assembly 300 is in the blocking position, the distance between the magnetic sensing component 410 and the magnetic component 420 is relatively far, and the magnetic sensing component 410 cannot sense the position of the magnetic component 420, or the signal sensed by the magnetic sensing component 410 to the magnetic component 420 is weak, so that the magnetic sensing component 410 does not output a sensing signal, that is, no sensing signal is output at this time, which also indicates that no water flows through the water channel 110 and flows into the water inlet channel 210. When the valve core assembly 300 moves from the blocked position to the open position under the pressure of the water flow, the valve core assembly 300 drives the magnetic member 420 to move, causing the magnetic member 420 to approach the magnetic sensing member 410 and enter the sensing range of the magnetic sensing member 410. At this time, the level signal output by the magnetic sensing member 410 is the signal of the valve core assembly 300 conducting the water through the water channel 110. With this arrangement, the water heater controller can determine the position of the valve core assembly 300 based on whether it receives the signal, and then determine the water flow rate flowing into the water channel 110, thereby obtaining a water inlet assembly 10 with a simple structure, low cost, high reliability, and water flow switch function and safety pressure relief. Among them, the magnetic sensing member 410 can be a magnetic sensing element such as a Hall element or a reed switch, as long as it can detect the current change of the magnetic member 420 and output a corresponding pulse signal, and is not specifically limited here.

[0058] In one embodiment, the magnetic induction component 410 is provided on the outer wall of the water inlet mounting seat 100, and the magnetic component 420 is provided at the end of the valve core assembly 300 away from the first opening 120. Specifically in this solution, the magnetic induction component 410 is provided in the middle of the outer wall of the water inlet mounting seat 100 and is provided corresponding to the magnetic component 420; the magnetic component 420 is provided at the upper end of the valve core assembly 300, which is convenient for installing the magnetic component 420, and the magnetic component 420 is provided in the water passage 110 away from the internal leakage port 114, so that the magnetic component 420 will not interfere with the internal leakage port 114 when moving with the valve core assembly 300, thereby fully utilizing the internal space of the internal leakage cavity 112. In addition, the magnetic induction component 410 can be an integrated structure with the water inlet mounting seat 100, so that no additional parts are required to install the magnetic induction component 410, which is conducive to reducing the number of joints of the water inlet assembly 10 and simplifying the structure of the water inlet assembly 10.

[0059] In one embodiment, the water inlet pipe assembly 200 includes an inner tube 220 and an outer tube (not shown), the inner tube 220 has an ascending flow channel 221, the outer tube is sleeved on the outside of the inner tube 220, and a descending flow channel and a descending water outlet are formed between the outer tube and the inner tube 220, which are connected to the ascending flow channel 221 in sequence. The outer tube is provided with a plurality of pipe wall water outlet holes connected to the descending flow channel, and one end of the inner tube 220 is provided at the second opening 130 and is connected to the water inlet mounting seat 100.

[0060] It is understood that as cold water flows from the water inlet assembly 10 into the inner tank of the water heater, it enters through the water inlet at one end of the inner tube 220, flows along the ascending flow channel 221 into the descending flow channel, and flows into the inner tank through the descending water outlet. The descending flow channel between the outer tube and the inner tube 220 can buffer the high-speed flow of cold water. The cold water can also flow into the inner tank through the water outlet holes in the tube wall of the outer tube. Due to the small diameter of the water outlet holes in the tube wall, they can further buffer the water flow.

[0061] In one embodiment, the water inlet pipe assembly 200 also includes a rectifying member (not shown), which is mounted on the outside of the inner tube 220 and located at the descending water outlet. The rectifying member is located below the water outlet hole in the pipe wall. A rectifying water outlet channel and a rectifying water outlet are formed between the rectifying member and the inner tube 220, which are connected to the descending water outlet in sequence. The rectifying member is provided with a plurality of rectifying water outlet holes connected to the rectifying water outlet channel, and the aperture of the rectifying water outlet hole is smaller than the aperture of the water outlet hole in the pipe wall.

[0062] It can be understood that cold water can also flow from the rectifying water outlet hole on the rectifying component to the inner tank. Since the aperture of the rectifying water outlet hole is smaller than the aperture of the water outlet hole on the tube wall, the rectifying water outlet hole further plays the role of buffering the water flow, and the rectifying component is arranged below the water outlet hole on the tube wall. The inner wall of the rectifying component is more conducive to guiding the cold water relative to the inner wall of the outer tube, so that the cold water can flow smoothly downward along the inner wall of the rectifying component, that is, it can flow smoothly to the bottom of the inner tank. In other words, the rectifying water outlet channel, the rectifying water outlet and the rectifying water outlet hole of the rectifying component can further slow down the water flow to ensure that the cold water flowing out of the water inlet pipe assembly 200 can be effectively dispersed to the bottom of the inner tank, reducing the influence of cold water on the hot water on the upper layer of the inner tank, thereby improving the hot water output rate of the water heater.

[0063] Furthermore, cold water entering the water inlet pipe assembly 200 flows from the rectifier outlet into the inner tank. Even if the water outlet holes on the pipe wall and the rectifier outlet holes become clogged by impurities or scale, the rectifier outlet can continue to supply cold water, thereby preventing the water inlet pipe assembly 200 from becoming clogged and ensuring that cold water can enter the inner tank. Furthermore, during assembly of the water inlet assembly 10 of this solution, the water inlet pipe assembly 200 can be directly installed in the inner tank, eliminating the need for an additional water baffle in the inner tank. This simplifies the assembly of the water heater and improves its assembly efficiency.

[0064] See also Figure 4 and Figure 5 In one embodiment, a third opening 140 communicating with the water flow channel 110 is provided on the water inlet mounting seat 100, and the water inlet assembly 10 further includes a leakage valve 500, wherein the leakage valve 500 has a leakage channel 511, and the leakage valve 500 is arranged outside the water flow channel 110, and one end of the leakage valve 500 is arranged at the third opening 140 and is detachably connected to the water inlet mounting seat 100, and the leakage channel 511 is communicated with the water flow channel 110.

[0065] It is understood that the leakage valve 500 is detachably connected to the water inlet mounting base 100 to facilitate disassembly, assembly, and maintenance of the leakage valve 500. Specific connection methods include, but are not limited to, threaded connections and snap-fit connections. The third opening 140 can be configured based on the specific structure of the water inlet mounting base 100, for example, on a sidewall of the water inlet mounting base 100. By providing the leakage valve 500, when the water inlet assembly 10 is used in a water heater, if the water pressure in the inner tank is too high, the leakage valve 500 can further relieve the inner tank pressure, thereby reducing the safety risks caused by excessive inner tank pressure.

[0066] See also Figure 5 In one embodiment, the leakage valve 500 includes a valve tube 510 and a leakage structure 520, the valve tube 510 has the leakage channel 511, and the leakage structure 520 can be movably arranged in the leakage channel 511 to cut off or conduct the leakage channel 511. The third opening 140 is provided on the side wall of the water inlet mounting seat 100, and a second connecting portion 512 is provided at one end of the valve tube 510. A second matching portion 141 is provided at the third opening 140, and the second connecting portion 512 and the second matching portion 141 are detachably connected.

[0067] It can be understood that the second connecting portion 512 and the second matching portion 141 are detachably connected to facilitate the assembly of the external leakage valve 500. The detachable connection method between the second connecting portion 512 and the second matching portion 141 includes but is not limited to: threaded connection or snap connection, which is not specifically limited here.

[0068] In one embodiment, a seal is provided at the connection between the leakage valve 500 and the water inlet mounting base 100. This seal can seal the gap between the valve tube 510 and the third opening 140 of the water inlet mounting base 100, thereby improving the reliability of the water inlet assembly 10. The seal is specifically provided between the second connecting portion 512 and the second mating portion 141 and can be arranged in an annular shape.

[0069] In one embodiment, the leakage channel 511 includes a liquid outlet cavity 514 and a leakage cavity 515 that are interconnected. The liquid outlet cavity 514 is in communication with the water passage 110, and the leakage cavity 515 is used to communicate with an external pipeline. A leakage port 516 is formed at the connection between the liquid outlet cavity 514 and the leakage cavity 515. The leakage structure 520 is movably disposed at the leakage port 516 to block or open the leakage port 516. This arrangement allows the water in the inner tank to flow outward through the water channel 110, the liquid outlet cavity 514, and the leakage cavity 515 in sequence when the water pressure in the inner tank is too high, thereby reducing the pressure by leakage. This increases the functionality of the water inlet assembly 10 and helps improve the reliability of the water heater.

[0070] See also Figure 5 In one embodiment, the leakage structure 520 includes a leakage plug 521, a leakage elastic member 522 and a leakage limiting member 523. The leakage plug 521 is arranged at the leakage port 516, and the leakage limiting member 523 is arranged at one end of the leakage channel 511 away from the leakage plug 521 and connected to the outside. One end of the leakage elastic member 522 abuts against the leakage plug 521, and the other end of the leakage elastic member 522 abuts against the leakage limiting member 523. The leakage elastic member 522 is used to keep the leakage plug 521 in a state of sealing and covering the leakage port 516.

[0071] It is understood that the internal leakage structure 320 has a forward opening pressure P1 and a reverse opening pressure P2, with the forward direction being the direction of flow into the water heater's inner tank and the reverse direction being the direction of flow out of the water heater's inner tank. The external leakage structure 520 has an external leakage opening pressure P5. When the water pressure P4 in the inner tank is greater than P2 and less than P5 (P4 is insufficient to open the external leakage structure 520), the water in the inner tank is discharged into the tap water pipe through the water inlet channel 210 and the clearance hole 324 of the internal leakage structure 320, thereby achieving internal leakage pressure reduction. When the water pressure P4 in the inner tank is greater than P2 and greater than P5, the external leakage port 516 is opened, the water passage 110 is connected to the external leakage chamber 515, and the water in the inner tank flows out to the external leakage chamber 515 and flows through the leakage limiter 523 to be discharged externally, thereby achieving external leakage pressure reduction.

[0072] In one embodiment, a third connecting portion is provided on the outer wall of the leakage limiter 523, and a third mating portion is provided on the wall of the leakage chamber 515. The third connecting portion and the third mating portion are detachably connected. This arrangement facilitates assembly of the leakage limiter 523 and the leakage structure 520, simplifying the structure of the leakage valve 500. In this embodiment, the third connecting portion includes a third external thread, and the third mating portion includes a third internal thread. The leakage limiter 523 is threadedly connected to the third internal thread in the valve tube 510 via the third external thread. This arrangement facilitates the structure and assembly process of the leakage limiter 523.

[0073] See also Figure 5 In one embodiment, a leakage hole 524 is provided on the leakage limiter 523, one end of the leakage hole 524 is connected to the leakage cavity 515, and the other end of the leakage hole 524 is used to communicate with the outside so that the inner tank can release pressure to the outside. By directly providing the leakage hole 524 on the leakage limiter 523, the structure of the leakage valve 500 is simplified. In addition, the leakage valve 500 in this solution can also reduce the pressure of the inner tank by manually adjusting the position of the leakage limiter 523, thereby improving the applicability of the water inlet assembly 10. For example, the leakage limiter 523 is threadedly connected to the inner wall of the valve tube 510, and the position of the leakage limiter 523 can be adjusted by manually rotating the leakage limiter 523, thereby adjusting the elastic force of the leakage elastic member 522 and the position of the leakage plug 521.

[0074] In one embodiment, a fourth opening 513 is formed at one end of the valve tube 510 away from the water inlet mounting seat 100, communicating with the external leakage channel 511. The fourth opening 513 and the second connecting portion 512 are provided at opposite ends of the valve tube 510 along its length. The fourth opening 513 is used to allow the inner container to release pressure outward. The valve tube 510 is configured as a straight tube and further includes a fifth opening communicating with the external leakage channel 511. The fifth opening is located at the end of the valve tube 510 near the water inlet mounting seat 100 and communicates with the water passage 110. By arranging the fourth opening 513 and the second connecting portion 512 relative to each other, the water pressure in the inner container can flow through the fourth opening 513 and release pressure outward, simplifying the pressure relief method of the external leakage valve 500 and simplifying the structure of the external leakage valve 500 and the water inlet assembly 10, thereby reducing manufacturing costs.

[0075] In one embodiment, the second connecting portion 512 includes a second external thread, and the second mating portion 141 includes a second internal thread. The valve tube 510 is threadably connected to the second internal thread in the third opening 140 via the second external thread. This arrangement facilitates quick and stable installation of the valve tube 510 on the water inlet mounting base 100, thereby simplifying the structure and assembly process of the water inlet assembly 10.

[0076] The present invention further provides a water heater, comprising an inner tank and the water inlet assembly 10 as described above. The inner tank is provided with a water inlet interface, the water inlet mounting seat 100 is mounted at the water inlet interface, and the water inlet pipe assembly 200 is disposed within the inner tank. The specific structure of the water inlet assembly 10 is similar to that of the above embodiments. Since the present water heater adopts all the technical solutions of all the above embodiments, it has at least all the beneficial effects brought about by the technical solutions of the above embodiments, which will not be described in detail here. The water heater includes, but is not limited to, an electric water heater.

[0077] The above description is merely an exemplary embodiment of the present invention and does not limit the patent scope of the present invention. All equivalent structural transformations made using the contents of the present invention specification and drawings under the technical concept of the present invention, or direct / indirect application in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A water inlet assembly, applied to a water heater, characterized in that: include: A water inlet mounting seat, for mounting on the inner tank of the water heater, the water inlet mounting seat having a water passage and a first opening and a second opening communicating with the water passage, the first opening being for communicating with an external water source; a water inlet pipe assembly having a water inlet channel, one end of the water inlet pipe assembly being disposed at the second opening and connected to the water inlet mounting seat, the water inlet channel being in communication with the water passage; as well as A valve core assembly is provided in the water passage and located between the first opening and the second opening. The valve core assembly has a blocking position for cutting off the first opening and the water inlet passage and an open position for connecting the first opening and the water inlet passage. The valve core assembly can move back and forth between the blocking position and the open position. In the open position, the water passage is used to supply water to flow into the inner tank or to relieve pressure in the inner tank.

2. The water inlet assembly according to claim 1, characterized in that: The water passage includes a liquid inlet chamber, an internal leakage chamber and an installation chamber that are connected in sequence. The liquid inlet chamber has the first opening, the installation chamber has the second opening, and an internal leakage port is formed at the connection between the liquid inlet chamber and the internal leakage chamber. The valve core assembly can be movably arranged at the internal leakage port to block or open the internal leakage port.

3. The water inlet assembly according to claim 2, characterized in that: The valve core assembly includes a valve seat and an internal leakage structure. The valve seat is arranged in the internal leakage cavity. A first connecting portion is provided on the outer wall of the valve seat. A first matching portion is provided on the cavity wall of the internal leakage cavity. The first connecting portion and the first matching portion are detachably connected. The internal leakage structure is arranged in the water inlet mounting seat and is movably arranged on the valve seat.

4. The water inlet assembly according to claim 3, characterized in that: The first connecting portion includes a first external thread, the first matching portion includes a first internal thread, and the valve seat is threadedly connected to the first internal thread in the water inlet mounting seat through the first external thread.

5. The water inlet assembly according to claim 1, characterized in that: The water inlet assembly further includes a water flow detection device, at least part of which is disposed on the valve core assembly for detecting the flow of water flowing into the water passage.

6. The water inlet assembly according to claim 5, characterized in that: The water flow detection device includes a magnetic induction component and a magnetic component. The magnetic induction component is arranged on the water inlet mounting seat and is located outside the water flow channel. The magnetic component is arranged in the water flow channel and is located on the valve core assembly. The magnetic component can move synchronously with the valve core assembly. The magnetic induction component is used to output no induction signal when the valve core assembly cuts off the water flow channel, and output a level signal when the valve core assembly opens the water flow channel.

7. The water inlet assembly according to claim 6, characterized in that: The magnetic induction component is arranged on the outer side wall of the water inlet mounting seat, and the magnetic component is arranged at an end of the valve core assembly away from the first opening.

8. The water inlet assembly according to claim 1, characterized in that: The water inlet pipe assembly includes an inner pipe and an outer pipe, the inner pipe has an ascending flow channel, the outer pipe is sleeved on the outside of the inner pipe, a descending flow channel and a descending water outlet are formed between the outer pipe and the inner pipe, and the outer pipe is provided with a plurality of pipe wall water outlet holes connected to the descending flow channel. One end of the inner pipe is arranged at the second opening and connected to the water inlet mounting seat.

9. The water inlet assembly according to any one of claims 1 to 8, characterized in that: The water inlet mounting seat is provided with a third opening connected to the water flow channel. The water inlet assembly also includes a leakage valve, which has a leakage channel. The leakage valve is arranged outside the water flow channel. One end of the leakage valve is arranged at the third opening and is detachably connected to the water inlet mounting seat. The leakage channel is connected to the water flow channel.

10. The water inlet assembly according to claim 9, characterized in that: The leakage valve includes a valve pipe and a leakage structure. The valve pipe has the leakage channel. The leakage structure can be movably arranged in the leakage channel to cut off or conduct the leakage channel. The third opening is provided on the side wall of the water inlet mounting seat. A second connecting portion is provided at one end of the valve pipe. A second matching portion is provided at the third opening. The second connecting portion and the second matching portion are detachably connected.

11. The water inlet assembly according to claim 10, characterized in that: The second connecting portion includes a second external thread, the second matching portion includes a second internal thread, and the valve tube is threadably connected to the second internal thread in the third opening via the second external thread; And / or, a fourth opening connected to the external leakage channel is formed at one end of the valve tube away from the water inlet mounting seat, and the fourth opening and the second connecting portion are arranged at opposite ends of the valve tube along its length direction, and the fourth opening is used to allow the inner tank to release pressure to the outside.

12. The water inlet assembly according to claim 10, characterized in that: The leakage channel includes a liquid outlet cavity and a leakage cavity that are connected to each other. The liquid outlet cavity is connected to the water passage. The leakage cavity is used to communicate with an external pipeline. A leakage port is formed at the connection between the liquid outlet cavity and the leakage cavity. The leakage structure can be movably arranged at the leakage port to block or open the leakage port.

13. The water inlet assembly according to claim 12, characterized in that: The leakage structure includes a leakage plug, a leakage elastic member and a leakage limiting member. The leakage plug is arranged at the leakage port. The leakage limiting member is arranged at one end of the leakage channel away from the leakage plug and connected to the outside. One end of the leakage elastic member abuts against the leakage plug, and the other end of the leakage elastic member abuts against the leakage limiting member. The leakage elastic member is used to keep the leakage plug in a state of sealing and covering the leakage port.

14. A water heater, characterized in that: It comprises an inner liner and a water inlet assembly as described in any one of claims 1 to 13, wherein the inner liner is provided with a water inlet interface, the water inlet mounting seat is installed at the water inlet interface, and the water inlet pipe assembly is arranged in the inner liner.

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