Multifunctional water inlet connector and water heater

By integrating a pressure relief valve, magnet, and filter screen into a multi-functional inlet connector, the complexity and high cost of the water inlet system for water heaters are solved, achieving structural simplification and cost reduction.

CN223925126UActive Publication Date: 2026-02-17GUANGDONG MACRO GAS APPLIANCE
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Patent Information

Application Number
CN202520596918.0
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-31
Publication Date
2026-02-17
Estimated Expiration
2035-03-31

AI Technical Summary

Technical Problem

Existing water heater inlet systems require the installation of multiple independent devices to avoid damaging internal parts, resulting in complex structures and high installation and maintenance costs.

Method used

A multifunctional water inlet connector is designed, integrating a pressure relief valve, a magnet, and a filter screen within the connector valve core to form a modular component. The pressure relief valve enables pressure relief, the magnet attracts metal particles, and the filter screen filters particulate matter, simplifying the structure and reducing the number of devices.

Benefits of technology

The simplified structure of the water heater reduces its footprint and installation and maintenance costs, while effectively preventing damage to internal parts and lowering installation and maintenance expenses.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of water heaters, and provides a multifunctional water inlet connector and a water heater, the connector comprises a connector main body, a connector valve core, a pressure release valve, a magnet and a filter screen. The connector body forms a water flowing channel and a containing cavity which are communicated with each other, and the water flowing channel is provided with a water inlet and a water outlet. The connector valve element is arranged in the containing cavity and provided with a pressure relief cavity and a pressure relief opening which are communicated with each other, and the pressure relief opening is communicated with the water flowing channel. The pressure relief valve is arranged in the pressure relief cavity; the magnet and the filter screen are arranged on the connector valve element and the water flowing channel. According to the multifunctional water inlet connector, the connector valve element is arranged in the containing cavity, the pressure release valve is arranged in the pressure release cavity, and the magnet and the filter screen are arranged on the connector valve element and the water flowing channel, so that the pressure release valve, the magnet, the filter screen and the connector valve element can form a modular component, the structure is simpler, and the occupied space is reduced; and a plurality of independent functional devices are not required to be mounted, parts can be prevented from being damaged, and the mounting and maintenance cost is reduced.
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Description

Technical Field

[0001] This utility model relates to the field of water heater technology, specifically to a multi-functional water inlet connector and a water heater. Background Technology

[0002] A water heater is a device that uses various physical principles to raise the temperature of cold water to produce hot water within a certain time. For example, a gas water heater uses gas as fuel and heats the water through combustion, transferring heat to the cold water flowing through a heat exchanger to produce hot water.

[0003] Water heaters typically require a water inlet system to treat the raw water before it enters the system, preventing damage to the internal water system. For example, particles such as sediment and rust in the raw water can clog internal water passages, heat exchangers, or solenoid valves. To address this issue, people usually install pressure regulating valves or add filtration devices to water heaters.

[0004] However, in related water heater technologies, the water inlet system needs to be equipped with multiple independent functional devices to avoid damaging internal parts, which makes the structure of the water heater more complex and results in excessively high installation and maintenance costs. Utility Model Content

[0005] In view of the above-mentioned defects in the prior art, the present invention provides a multi-functional water inlet connector and water heater to solve at least one of the above-mentioned technical defects in the prior art, so that the water inlet system of the water heater no longer needs to install multiple independent functional devices, and can also process raw water and avoid damage to internal parts, which can simplify the structure of the water heater, reduce the space occupied, and reduce installation and maintenance costs.

[0006] The second aspect of this utility model provides a water heater.

[0007] To achieve the purpose of this utility model, this utility model provides a multifunctional water inlet connector and water heater, comprising:

[0008] The connector body forms an interconnected water flow channel and a receiving cavity, wherein the water flow channel has an inlet and an outlet;

[0009] A connector valve core is disposed in the receiving cavity. The connector valve core has a pressure relief cavity and a pressure relief port that are interconnected. The pressure relief port is connected to the water flow channel.

[0010] A pressure relief valve is provided in the pressure relief chamber;

[0011] A magnet is disposed at the first end of the connector valve core and located within the water flow channel;

[0012] A filter screen is located at the first end of the connector valve core and within the water flow channel.

[0013] Preferably, the first end of the connector valve core is provided with a valve core boss, the valve core boss is provided with a fixing groove, and the magnet is fixedly connected to the fixing groove.

[0014] Preferably, the magnet is located at the geometric center of the water flow channel.

[0015] Preferably, the first end of the connector valve core is further provided with a connecting groove.

[0016] The first end of the filter screen is fixed to the connecting groove, and the second end of the filter screen abuts against the side wall forming the water flow channel.

[0017] Preferably, the filter screen is a cylindrical filter screen, and the magnet is a magnetic rod.

[0018] The axis of the cylindrical filter screen is perpendicular to the axis of the water flow channel.

[0019] The magnetic rod is located at the center of the cylindrical filter screen.

[0020] Preferably, the connector valve core is fitted with a sealing ring, which is suitable for sealing the gap between the connector valve core and the receiving cavity.

[0021] Preferably, the pressure relief port includes a pressure relief hole and a pressure relief through hole.

[0022] The pressure relief hole is located on the valve core boss, and the axis of the pressure relief hole is parallel to the axis of the water flow channel.

[0023] The pressure relief through hole connects the pressure relief hole and the pressure relief cavity.

[0024] Preferably, the pressure relief valve includes a pressure relief valve cover, a pressure relief valve body, and a spring.

[0025] The pressure relief valve body is slidably connected to the pressure relief chamber, the pressure relief valve cover is fixed to the connector valve core, the first end of the spring abuts against the pressure relief valve body, and the second end of the spring abuts against the pressure relief valve cover, so that the end of the pressure relief valve body abuts against and seals against the pressure relief through hole.

[0026] Preferably, the pressure relief valve further includes a pressure relief valve disc, which is located at the end of the pressure relief valve body and abuts against and seals the pressure relief through hole.

[0027] The second aspect of this utility model provides a water heater, including the aforementioned multi-functional water inlet connector and water heater body.

[0028] The multi-functional water inlet connector is located on the water heater body.

[0029] The beneficial effects of this utility model are as follows: The multi-functional water inlet connector provided by this utility model has a connector body that is interconnected with the water flow channel and the receiving cavity, and the connector valve core is set in the receiving cavity; wherein, the connector valve core has an interconnected pressure relief cavity and pressure relief port, the pressure relief valve is set in the pressure relief cavity, and the magnet and filter screen are set at the first end of the connector valve core and located in the water flow channel, so that the pressure relief valve, magnet, filter screen and connector valve core can form a modular component, which is simpler in structure and reduces the space occupied; moreover, the magnet can attract metal particles, and the filter screen can filter particulate matter, so the water heater no longer needs to install multiple independent functional devices, and damage to the internal parts of the water heater can also be avoided, which greatly reduces the installation and maintenance costs.

[0030] The water heater provided by this utility model, by including the aforementioned multi-functional inlet connector, inevitably possesses all the advantages of that inlet connector. Specifically, this water heater also allows the pressure relief valve, magnet, filter screen, and connector valve core to form modular components, resulting in a simpler structure and reduced space occupation. Furthermore, the magnet can attract metal particles, and the filter screen can filter particulate matter, eliminating the need for multiple independently functional devices in the water heater and preventing damage to internal parts, thus significantly reducing installation and maintenance costs. Attached Figure Description

[0031] The above and other objects, features, and advantages of this utility model will become clearer through a more detailed description of the preferred embodiments shown in the accompanying drawings. The same reference numerals indicate the same parts throughout the drawings, and the drawings are not intentionally drawn to scale with actual dimensions; the focus is on illustrating the gist of this application.

[0032] Figure 1 This is a cross-sectional schematic diagram of the overall structure of the multifunctional water inlet connector provided in an embodiment of the present utility model;

[0033] Figure 2 for Figure 1 A cross-sectional view of the main structure of the connector in the diagram;

[0034] Figure 3 for Figure 1 A cross-sectional view of the structure with the main body of the joint removed.

[0035] Figure 4 This is a cross-sectional view of the connector valve core.

[0036] Figure 5 This is a cross-sectional view of the pressure relief valve.

[0037] In the picture:

[0038] 100. Connector body; 110. Water flow channel; 111. Water inlet; 112. Water outlet; 120. Receiving cavity;

[0039] 200, Connector valve core; 210, Pressure relief chamber; 220, Pressure relief port; 221, Pressure relief hole; 222, Pressure relief through hole; 230, Valve core screw; 240, Valve core boss; 241, Fixing groove; 250, Connecting groove; 260, Sealing ring;

[0040] 300, pressure relief valve; 310, pressure relief valve cover; 320, pressure relief valve body; 321, through hole; 330, spring; 331, spring fixing cavity; 340, pressure relief valve disc;

[0041] 400. Magnet;

[0042] 500, Filter screen; 510, Filter screen base. Detailed Implementation

[0043] To facilitate understanding of this utility model, a more comprehensive description of this utility model will be given below with reference to the accompanying drawings.

[0044] It should be noted that when a component is considered to be "connected" to another component, it can be directly connected to and integrated with the other component, or there may be an intervening component present. The terms "mounted," "one end," "the other end," and similar expressions used in this document are for illustrative purposes only.

[0045] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this applies. The terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0046] The following is combined Figures 1 to 5 The embodiments of this utility model will be described below. It should be understood that the following description is merely an illustrative embodiment of this utility model and does not constitute any limitation on this utility model.

[0047] An embodiment of this utility model provides a multi-functional water inlet connector, which is installed on the water heater body. The multi-functional water inlet connector includes a connector body 100, a connector valve core 200, a pressure relief valve 300, a magnet 400, and a filter screen 500.

[0048] The connector body 100 has an interconnected water flow channel 110 and a receiving cavity 120, which can be perpendicularly intersected and interconnected. The water flow channel 110 is provided with an inlet 111 and an outlet 112. The connection between the receiving cavity 120 and the water flow channel 110 is located between the inlet 111 and the outlet 112. In other words, the receiving cavity 120 and the water flow channel 110 can be configured as a "T" shaped tee, making the structure of the connector simpler.

[0049] The connector valve core 200 is detachably installed in the receiving cavity 120. For example, the connector valve core 200 can be made of copper. After the connector valve core 200 is inserted into the receiving cavity 120, it is fixed with valve core screws 230, which simplifies the structure of the water inlet connector. The connector valve core 200 is provided with a pressure relief cavity 210 and a pressure relief port 220 that are interconnected. The pressure relief port 220 is connected to the water flow channel 110.

[0050] The pressure relief valve 300 is installed in the pressure relief chamber 210. When the liquid pressure in the water flow channel 110 exceeds the rated value of the pressure relief valve 300, the liquid in the water flow channel 110 can enter the pressure relief chamber 210 from the pressure relief port 220, thereby achieving pressure relief.

[0051] Magnet 400 is located at the first end of connector valve core 200 and within water flow channel 110; it can attract metal particles, such as rust particles, in the water entering water flow channel 110; thus preventing blockage of the water circuit system of the water heater and preventing damage to internal parts such as heat exchanger or solenoid valve.

[0052] The filter screen 500 is located at the first end of the connector valve core 200 and inside the water flow channel 110; it can filter particles in the water entering the water flow channel 110, such as mud and sand particles; it can prevent blockage of the water circuit system of the water heater or damage to internal parts such as heat exchangers or solenoid valves, thereby further preventing damage to the internal parts of the water heater.

[0053] It is understood that the multifunctional water inlet connector provided in the embodiments of this utility model, through the connector body 100 which is connected to the receiving cavity 120 via the water flow channel 110, has the connector valve core 200 located in the receiving cavity 120; wherein, the connector valve core 200 is provided with a pressure relief cavity 210 and a pressure relief port 220 connected to each other, the pressure relief valve 300 is located in the pressure relief cavity 210, and the magnet 400 and the filter screen 500 are located at the first end of the connector valve core 200 and within the water flow channel 110, so that the pressure relief valve 300, the magnet 400, the filter screen 500 and the connector valve core 200 can form a modular component, which is simpler in structure and reduces the space occupied; moreover, the magnet 400 can adsorb metal particles, and the filter screen 500 can filter particulate matter, so the water heater no longer needs to install multiple independent functional devices, and damage to the internal parts of the water heater can also be avoided, greatly reducing installation and maintenance costs.

[0054] Specifically, in combination Figures 1 to 4 In some embodiments of this utility model, the first end of the connector valve core 200 is provided with a valve core boss 240, the valve core boss 240 is provided with a fixing groove 241, and the magnet 400 is fixedly connected to the fixing groove 241. For example, the fixing connection between the magnet 400 and the fixing groove 241 can be fixed with high temperature resistant adhesive, which makes the fixing of the magnet 400 and the connector valve core 200 simpler, and the high temperature resistant adhesive can also enhance the fixing effect of the magnet 400.

[0055] Furthermore, in some embodiments of this utility model, the magnet 400 is located at the geometric center of the water flow channel 110. This allows the magnetic field of the magnet 400 to be evenly distributed in the water flow channel 110 formed by the connector body 100, covering a wider water flow area, thereby improving the stability and reliability of the adsorption effect, increasing water flow efficiency, and reducing the impact on the performance of the water heater system.

[0056] In addition, in some embodiments of this utility model, the first end of the connector valve core 200 is also provided with a connecting groove 250.

[0057] The first end of the filter screen 500 is fixed to the connecting groove 250, and the second end of the filter screen 500 abuts against the side wall forming the water flow channel 110. For example, a filter screen base 510 is welded to the top of the filter screen 500, and the filter screen base 510 is fixed to the connecting groove 250 by applying pressure, making the filter screen 500 easy to install and remove and secure.

[0058] Of course, in some embodiments of this utility model, the filter screen 500 can be a cylindrical filter screen, and the magnet 400 can be a magnetic rod.

[0059] The axis of the cylindrical filter screen is perpendicular to the axis of the water flow channel 110, and the magnetic rod is located at the center of the cylindrical filter screen.

[0060] The cylindrical filter screen has a larger contact area with the water in the water flow channel 110, resulting in a wider filtration area. The magnetic rod has a larger surface area, which can maximize the adsorption of metal particles (such as rust particles) in the water, thereby improving the adsorption efficiency, ensuring that more metal particles are adsorbed, reducing the possibility of entering downstream equipment. Moreover, the magnetic rod is set in the center of the cylindrical filter screen, which can also reduce the impact of particles, thereby extending the service life of the magnetic rod and reducing the frequency of cleaning and replacement.

[0061] Combination Figure 3 and Figure 4 In some embodiments of this utility model, the connector valve core 200 is fitted with a sealing ring 260, which can seal the gap between the connector valve core 200 and the receiving cavity 120, prevent the multi-functional water inlet connector from leaking, and improve its quality.

[0062] Combination Figure 4 In some embodiments of this utility model, the pressure relief port 220 includes a pressure relief hole 221 and a pressure relief through hole 222.

[0063] The pressure relief hole 221 is located on the valve core boss 240. The axis of the pressure relief hole 221 is parallel to the axis of the water flow channel 110, which makes it easier for water in the water flow channel 110 to flow into the pressure relief hole 221, thus ensuring the pressure relief effect.

[0064] The pressure relief through hole 222 connects the pressure relief hole 221 and the pressure relief chamber 210. When the water pressure in the water flow channel 110 is higher than the rated value of the pressure relief valve 300, water can flow in from the pressure relief hole 221 and then into the pressure relief chamber 210 through the pressure relief through hole 222 to achieve pressure relief.

[0065] Specifically, in combination Figure 3 and Figure 4 In order to simplify the structure of the water inlet connector, in some embodiments of this utility model, the pressure relief valve 300 includes a pressure relief valve cover 310, a pressure relief valve body 320 and a spring 330.

[0066] The pressure relief valve body 320 is slidably connected to the pressure relief chamber 210, the pressure relief valve cover 310 is fixed on the connector valve core 200, the first end of the spring 330 abuts against the pressure relief valve body 320, and the second end of the spring 330 abuts against the pressure relief valve cover 310, so that the end of the pressure relief valve body 320 abuts against the pressure relief through hole 222 for sealing.

[0067] Furthermore, the pressure relief valve body 320 is provided with a spring fixing cavity 331, the first end of the spring 330 is located in the spring fixing cavity 331, and the side wall of the pressure relief valve body 320 is also provided with a through hole 321 communicating with the spring fixing cavity 331 for convenient pressure relief.

[0068] Furthermore, in order to enhance the stability of pressure relief, in some embodiments of this utility model, the pressure relief valve 300 also includes a pressure relief valve disc 340, which is disposed at the end of the pressure relief valve body 320 and abuts and seals with the pressure relief through hole 222.

[0069] Combination Figures 1 to 5 In an embodiment of this utility model, a water heater is also provided, which includes the aforementioned multi-functional water inlet connector and water heater body.

[0070] The multi-functional water inlet connector is located on the main body of the water heater.

[0071] It is understood that the water heater provided in the embodiments of this utility model, due to including the aforementioned multi-functional water inlet connector, inevitably possesses all the advantages of that water inlet connector. That is, the water heater also allows the pressure relief valve 300, magnet 400, filter screen 500, and connector valve core 200 to form modular components, resulting in a simpler structure and reduced space occupation; moreover, the magnet 400 can attract metal particles, and the filter screen 500 can filter particulate matter, eliminating the need to install multiple independent functional devices in the water heater, and also preventing damage to internal parts of the water heater, greatly reducing installation and maintenance costs.

[0072] In this specification, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Furthermore, "above," "over," and "on top" of the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0073] In the description of this specification, the use of terms such as "preferred embodiment," "another embodiment," "some embodiments," "other embodiments," or "specific example," etc., refers to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0074] Although embodiments of this application have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting this application. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of this application.

Claims

1. A multifunction water inlet joint, characterized by, The utility model relates to a multifunctional water inlet joint, comprising: a joint body formed with a water flow channel and a receiving cavity in communication with each other, the water flow channel having a water inlet and a water outlet; a joint valve core arranged in the receiving cavity, the joint valve core being provided with a pressure relief cavity and a pressure relief opening in communication with each other; a pressure relief valve arranged in the pressure relief cavity; a magnet arranged at a first end of the joint valve core and located in the water flow channel; a filter screen arranged at the first end of the joint valve core and located in the water flow channel.

2. The multifunctional water inlet joint of claim 1, wherein, The first end of the joint valve core is provided with a valve core boss, the valve core boss is provided with a fixing groove, and the magnet is fixedly connected to the fixing groove.

3. The multifunctional water inlet joint of claim 2, wherein, The magnet is located at the geometric center of the water flow channel.

4. The multifunction water inlet joint of claim 3, wherein, The first end of the joint valve core is further provided with a connecting groove, the first end of the filter screen is fixed to the connecting groove, and the second end of the filter screen abuts against a side wall forming the water flow channel.

5. The multifunction water inlet joint of claim 4, wherein, The filter screen is a cylindrical filter screen, the magnet is a magnetic rod, the axis of the cylindrical filter screen is perpendicular to the axis of the water flow channel, and the magnetic rod is located at the center of the cylindrical filter screen.

6. The multifunctional water inlet joint of claim 1, wherein, The joint valve core is provided with a sealing ring suitable for sealing the gap between the joint valve core and the receiving cavity.

7. The multifunctional water inlet joint of claim 2, wherein, The pressure relief opening includes a pressure relief hole and a pressure relief through hole, the pressure relief hole is arranged in the valve core boss, and the axis of the pressure relief hole is parallel to the axis of the water flow channel, and the pressure relief through hole communicates the pressure relief hole with the pressure relief cavity.

8. The multifunction water inlet joint of claim 7, wherein, The pressure relief valve includes a pressure relief valve cover, a pressure relief valve body, and a spring, the pressure relief valve body is slidingly connected to the pressure relief cavity, the pressure relief valve cover is fixed to the joint valve core, the first end of the spring abuts against the pressure relief valve body, the second end of the spring abuts against the pressure relief valve cover, the end of the pressure relief valve body abuts against and seals the pressure relief through hole.

9. The multifunction water inlet joint of claim 8, wherein, The pressure relief valve further includes a pressure relief valve flap arranged at the end of the pressure relief valve body, and the pressure relief valve flap abuts against and seals the pressure relief through hole.

10. A water heater, characterized by The utility model relates to a multifunctional water inlet joint and a water heater body, the multifunctional water inlet joint is arranged in the water heater body.