Condensate collection and drainage device for gas appliance

Abstract

The present invention discloses a condensate collection and drainage device for a gas appliance, comprising: a housing assembly having a water collection chamber, a water inlet, and a drain outlet, wherein the water collection chamber is connected to the water inlet and the drain outlet respectively; a valve assembly movably disposed in the water collection chamber for opening or closing the drain outlet; and a magnetic attraction assembly disposed in the water collection chamber for generating a magnetic field attraction force to attract the valve assembly, wherein the valve assembly opens the drain outlet under the attraction of the magnetic field attraction force. The condensate collection and drainage device of the present invention controls the opening or closing of the valve assembly through the magnetic attraction assembly, thereby facilitating the centralized discharge of condensate in the device, while preventing smoke leakage and improving product reliability.

Description

Technical Field

[0001] The present invention relates to the technical field of kitchen appliances, and in particular to a condensate water collecting and draining device for a gas appliance. Background Art

[0002] The condensate collection device of a gas heating water boiler is generally equipped with a condensate level over-high protection device. When the condensate level is too high, the protection device will be triggered. The protection device will transmit a signal to the controller. The controller will send a signal to stop the operation of the gas heating water boiler and issue an alarm for the condensate level to prevent continued operation from generating condensate, which will then flow back into the water boiler and affect normal operation. Summary of the Invention

[0003] The present invention aims to solve, at least to a certain extent, one of the problems existing in the existing related technologies. To this end, the present invention proposes a condensate collection and drainage device for a gas appliance, which controls the opening or closing of a valve assembly through a magnetic suction assembly to facilitate the centralized discharge of condensate in the device, while avoiding smoke leakage and improving product reliability.

[0004] According to the above-mentioned condensate collection and drainage device for a gas appliance, it is implemented by the following technical solutions:

[0005] A condensate collection and drainage device for a gas appliance comprises: a shell assembly having a water collection chamber, a water inlet and a drain outlet, wherein the water collection chamber is connected to the water inlet and the drain outlet respectively; a valve assembly movably arranged in the water collection chamber for opening or closing the drain outlet; and a magnetic attraction assembly arranged in the water collection chamber for generating a magnetic field attraction for attracting the valve assembly, wherein the valve assembly opens the drain outlet under the attraction of the magnetic field attraction.

[0006] In some embodiments, a hinged portion located outside the drain outlet is provided in the water collection chamber; the valve assembly includes a sealing cover plate and a first magnet, the sealing cover plate is rotatably provided in the water collection chamber and is used to open or close the drain outlet, one end of the sealing cover plate is rotatably connected to the hinged portion, and the other end is provided with the first magnet; the magnetic attraction assembly attracts the first magnet through magnetic field attraction, so that the sealing cover plate opens the drain outlet.

[0007] In some embodiments, a mounting portion located outside the drain outlet is provided in the water collection chamber, and the mounting portion is arranged opposite to the hinge portion; the valve assembly further includes a second magnet, which is provided on the mounting portion and is used to attract the first magnet above it, so that the sealing cover plate closes the drain outlet.

[0008] In some embodiments, two mounting portions are provided in the water collection chamber and are located on two opposite outer sides of the drain outlet; the valve assembly includes a sealing cover plate, two second magnets and two first magnets, the sealing cover plate can be arranged in the water collection chamber for translational movement and is used to open or close the drain outlet, the two second magnets are respectively arranged on the two mounting portions, and the two first magnets are respectively arranged at opposite ends of the sealing cover plate, and each first magnet is respectively used to attract the magnetic attraction assembly and the corresponding second magnet.

[0009] In some embodiments, the magnetic attraction assembly includes a fixing seat, an iron core and a coil, the fixing seat is installed in the water collection chamber and has a cavity, the iron core is arranged in the cavity, and the coil is arranged in the cavity and wound around the outer surface of the iron core.

[0010] In some embodiments, a support portion is provided circumferentially at the upper end of the cavity wall of the water collecting chamber; the fixing seat includes a fixing bracket having a cavity, a top opening connected to the cavity is formed at the top of the fixing bracket, and a plurality of radial ribs extending outward are provided circumferentially at intervals on the outer wall of the fixing bracket, and the free end of each radial rib abuts against the top surface of the support portion.

[0011] In some embodiments, an annular rib is provided on the periphery of the fixing bracket, and the free end of each radial rib abuts against the top surface of the support portion through the annular rib.

[0012] In some embodiments, the fixing seat further includes a fixing cover plate, which is arranged to cover the top opening and is detachably connected to the fixing bracket. Two openings are provided on the fixing cover plate for the coil to pass through.

[0013] In some embodiments, a liquid level detection component is further included, which is arranged on the shell component and is used to detect the condensed water level in the water collection chamber; the magnetic attraction component is electrically connected to the liquid level detection component.

[0014] In some embodiments, the liquid level detection component includes a first conductor and a second conductor, the first conductor is disposed in the water collection chamber and connected to the shell component, and the second conductor is disposed in the water collection chamber and electrically connected to the magnetic attraction component.

[0015] In some embodiments, the liquid level detection component further includes a first conductive plug and a second conductive plug, wherein the first conductive plug is disposed outside the shell component and electrically connected to the first conductor, and the second conductive plug is disposed outside the shell component, and the second conductive plug is electrically connected to the second conductor through the magnetic attraction component.

[0016] Compared with the prior art, the present invention has at least the following beneficial effects:

[0017] The condensate collection and drainage device of the present invention is realized by movably arranging a valve component in the water collection chamber of the shell component and being used to open or close the drain outlet connected to the water collection chamber, and arranging a magnetic component in the water collection chamber. The valve component automatically opens the drain outlet under the attraction of the magnetic field generated by the power supply of the magnetic component, so as to facilitate the centralized discharge of the condensate in the water collection chamber. When the power supply of the magnetic component is cut off, the valve component automatically closes the drain outlet under the action of its own gravity, so that the condensate and smoke in the water collection chamber cannot be discharged, thereby achieving the effect of preventing smoke leakage and improving product reliability. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 Schematic diagram of the structure of the condensate collection and drainage device in Example 1 of the present invention, in which the lower shell is in a transparent state;

[0019] Figure 2 is a cross-sectional view of the condensate collection and drainage device in Example 1 of the present invention, in which the valve assembly is in a closed state;

[0020] Figure 3 is a cross-sectional view of the condensate collection and drainage device in Example 1 of the present invention, in which the valve assembly is in an open state;

[0021] Figure 4 1 is a schematic structural diagram of the lower housing in Example 1 of the present invention;

[0022] Figure 5 is a schematic structural diagram of the valve assembly in Example 1 of the present invention with the second magnet hidden;

[0023] Figure 6 is a schematic structural diagram of the fixing base in Example 1 of the present invention;

[0024] Figure 7 yes Figure 2 A partial enlarged view of part A;

[0025] Figure 8 This is a cross-sectional view of the condensate collection and drainage device in Example 2 of the present invention, in which the magnetic attraction component is hidden.

[0026] In the figure: 1-shell assembly, 11-lower shell, 110-cavity, 111-water collection chamber, 112-drain outlet, 113-annular boss, 114-hinge portion, 115-mounting portion, 1151-lower mounting groove, 1152-lower limit portion, 116-guide portion, 117-support portion, 1171-positioning block, 12-upper shell, 121-water inlet, 13-sealing ring; 2-valve assembly, 21-sealing cover plate, 211-first extension portion, 212-rotating shaft, 213-second extension portion, 214-upper mounting groove, 2 15-upper limit part, 22-first magnet, 23-second magnet; 3-magnetic attraction component, 301-cavity, 31-fixed seat, 311-fixed bracket, 3111-radial ribs, 3112-annular ribs, 3113-locking position, 312-fixed cover, 32-iron core, 33-coil, 331-first electrode, 332-second electrode, 34-connector; 411-first conductor, 412-second conductor, 421-first conductive plug, 422-second conductive plug, 431-screw, 432-nut. DETAILED DESCRIPTION

[0027] The following examples illustrate the present invention, but the present invention is not limited to these examples. Modifications to the specific embodiments of the present invention or equivalent replacements of some technical features without departing from the spirit of the present invention should be included in the scope of the technical solution claimed in the present invention.

[0028] Example 1

[0029] refer to Figure 1-3 This embodiment provides a condensate collection and drainage device for a gas appliance, including a shell assembly 1, a valve assembly 2 and a magnetic assembly 3, wherein the shell assembly 1 has a water collection chamber 111, a water inlet 121 and a drain outlet 112, and the water collection chamber 111 is respectively connected to the water inlet 121 and the drain outlet 112. In this embodiment, the water inlet 121 and the drain outlet 112 are respectively arranged at the top and bottom of the shell assembly 1.

[0030] The valve assembly 2 is movably disposed in the water collection chamber 111 for opening or closing the drain port 112. In this embodiment, the valve assembly 2 is rotatably disposed in the water collection chamber 111. In other embodiments, the valve assembly 2 can be reciprocated in the water collection chamber 111.

[0031] The magnetic component 3 is disposed in the water collection chamber 111 and above the valve component 2, and is used to generate a magnetic field attraction to attract the valve component 2, so that the valve component 2 opens the drain port 112 under the attraction of the magnetic field attraction. In this embodiment, the level of the condensed water in the water collection chamber 111 serves as a basis or switch for whether the magnetic component 3 is powered on to generate the magnetic field attraction. Figure 3When the condensed water level in the water collection chamber 111 reaches the set water level, the magnetic attraction component 3 is energized to generate magnetic attraction, and the valve component 2 flips upward or moves upward under the attraction of the magnetic attraction to open the drain port 112. At this time, the condensed water in the water collection chamber 111 is discharged in a centralized manner; Figure 2 When the power to the magnetic component 3 is cut off, the magnetic field attraction disappears, and the valve component 2 flips downward or moves downward under its own gravity to reclose the drain port 112 to avoid smoke leakage, ensure the normal operation of the gas appliance, and improve product reliability.

[0032] It can be seen that the condensate collection and drainage device of this embodiment is achieved by movably arranging the valve component 2 in the water collection chamber 111 of the shell component 1 and being used to open or close the drain port 112 connected to the water collection chamber 111, and arranging the magnetic component 3 in the water collection chamber 111. The valve component 2 automatically opens the drain port 112 under the attraction of the magnetic field force generated by the power supply of the magnetic component 3, so as to facilitate the centralized discharge of the condensate in the water collection chamber 111. When the power is cut off from the magnetic component 3, the valve component 2 automatically closes the drain port 112 under the action of its own gravity, so that the condensate and flue gas in the water collection chamber 111 cannot be discharged, thereby achieving the effect of preventing flue gas leakage and improving product reliability.

[0033] refer to Figure 1-4 The shell assembly 1 includes a lower shell 11 and an upper shell 12. The lower shell 11 has a cavity 110 with a top opening, and a drain port 112 is provided at the bottom center of the lower shell 11. The upper shell 12 is covered at the top opening of the lower shell 11 and is detachably connected to the lower shell 11. The cavity 110 of the upper shell 12 and the lower shell 11 are jointly enclosed to form a water collecting chamber 111, and a water inlet 121 is provided at the top center of the upper shell 12. Optionally, the lower shell 11 is detachably connected to the upper shell 12 by means of a snap or thread. Therefore, by designing the shell assembly 1 as a detachably connected lower shell 11 and upper shell 12, it is convenient to process and manufacture each component, and it is convenient to assemble the valve assembly 2 and the magnetic assembly 3 in the water collecting chamber 111, and it is also convenient for the later maintenance of the valve assembly 2 and / or the magnetic assembly 3.

[0034] In order to ensure the airtightness of the connection between the lower shell 11 and the upper shell 12, the shell assembly 1 also includes a sealing ring 13, which is clamped between the lower shell 11 and the upper shell 12 to prevent air leakage and water leakage at the fitting point of the lower shell 11 and the upper shell 12, thereby preventing smoke from leaking from the fitting point of the lower shell 11 and the upper shell 12.

[0035] To facilitate the rotatable installation of the valve assembly 2 within the water collection chamber 11 and ensure that the valve assembly 2 can reliably close the drain outlet 112, the upper end of the drain outlet 112 is integrally extended upward to form an annular boss 113, the upper end surface of which is used to abut the valve assembly 2. An upward-extending hinge portion 114 is integrally formed on the bottom surface of the water collection chamber 111. The hinge portion 114 is located outside the annular boss 113 or the drain outlet 112 and is arranged away from the magnetic assembly 3. In this embodiment, there are two hinge portions 114, each of which is integrally formed with the outer wall of the annular boss 113 to enhance the overall strength of each hinge portion 114 and the annular boss 113. One end of the valve assembly 2 is rotatably connected to the hinge part 114, and the other end can generate magnetic field attraction with the magnetic assembly 3, so that the valve assembly 2 can flip upward to open the upper end surface of the drain outlet 112 under the attraction of the magnetic field, or close the upper end surface of the drain outlet 112 under the action of its own gravity.

[0036] In order to reliably support the magnetic assembly 3 and ensure that the magnetic assembly 3 is stably and securely installed in the water collection chamber 111, a support portion 117 is circumferentially provided at the upper end of the cavity wall of the water collection chamber 111. The support portion 117 is used to support the fixing seat 31 of the magnetic assembly 3. Optionally, the support portion 117 can be annular in structure or can be composed of multiple sub-support platforms arranged at intervals in the circumference, each support platform being located on the same plane. In this embodiment, the support portion 117 is annular in structure as an example.

[0037] To prevent relative rotation between the magnetic assembly 3 and the support portion 117 and to reduce the probability of incorrect assembly, a positioning structure (not shown) is provided between the support portion 117 and the magnetic assembly 3. In this embodiment, the positioning structure includes a latch 3113 and a positioning block 1171 that engage with each other. The positioning block 1171 is fixed to the top surface of the support portion 117 and is integrally formed with the wall of the water collection chamber 111 to ensure the installation strength of the positioning block 1171. Correspondingly, the latch 3113 is provided on the fixing base 31 of the magnetic assembly 3. In other embodiments, the installation positions of the latch 3113 and the positioning block 1171 can be interchanged.

[0038] refer to Figure 1-5The valve assembly 2 includes a sealing cover plate 21 and a first magnet 22. The sealing cover plate 21 is rotatably disposed within the water collection chamber 111 and is used to open or close the drain port 112. One end of the sealing cover plate 21 is rotatably connected to the hinge portion 114, and the other end is provided with the first magnet 22. The magnetic assembly 3 is disposed above the first magnet 22 and the sealing cover plate 21. The magnetic assembly 3 attracts the first magnet 22 through magnetic field attraction, causing the sealing cover plate 21 to open the drain port 112. Thus, through the cooperation between the magnetic attraction component 3 and the first magnet 22 arranged at the free end of the sealing cover plate 21, when the magnetic attraction component 3 is energized to generate magnetic field attraction, the first magnet 22 drives the sealing cover plate 21 to flip upward and open the drain outlet 112 under the attraction of the magnetic field, so as to realize the centralized discharge of the condensed water in the water collection chamber 111; when the magnetic attraction component 3 is powered off and no magnetic field attraction is generated, the sealing cover plate 21 flips downward under the action of its own gravity and the gravity of the first magnet 22 to close the drain outlet 112, so that the water collection chamber 111 can collect condensed water, while preventing smoke from leaking out of the drain outlet 112.

[0039] In this embodiment, a first extension portion 211 extending toward the hinge portion 114 is integrally formed on the outer wall of the sealing cover plate 21. A rotating shaft 212 is fixed to the free end of the first extension portion 211. The opposite ends of the rotating shaft 212 are rotatably connected to the two hinge portions 114. Furthermore, a second extension portion 213 extending away from the hinge portion 114 is integrally formed on the outer wall of the sealing cover plate 21. A downwardly recessed and upwardly open upper mounting groove 214 is provided on the top surface of the second extension portion 213. The first magnet 22 is accommodated in the upper mounting groove 214.

[0040] To prevent the first magnet 22 from falling out of the upper mounting groove 214, a plurality of upper positioning portions 215 are fixedly provided at circumferential intervals on the upper end of the groove wall of the upper mounting groove 214. Each upper positioning portion 215 is located above the first magnet 22. In this embodiment, each upper positioning portion 215 is designed as a flange having a guide surface that guides the first magnet 22 when installed in the upper mounting groove 214.

[0041] In order to further enhance the reliable support effect of the annular boss 113 on the free end (i.e., the second extension portion 213) of the sealing cover plate 21, and ensure that the sealing cover plate 21 reliably closes the drain port, a mounting portion 115 extending upward and located outside the drain port 1112 is integrally formed on the bottom surface of the water collecting chamber 111. The mounting portion 115 is arranged opposite to the hinge portion 114 and is located directly below the second extension portion 213. Figure 2 When the sealing cover plate 21 closes the drain port 112 , the upper end surface of the mounting portion 115 abuts against the bottom surface of the second extending portion 213 .

[0042] To further enhance the sealing effect of the sealing cover plate 21 in closing the drain port 112, the valve assembly 2 further includes a second magnet 23. The second magnet 23 is disposed on the mounting portion 115 and is used to attract the first magnet 22 located above it, so that the sealing cover plate 21 tightly closes the drain port 112. Thus, by disposing the second magnet 23 below the free end of the sealing cover plate 21, the magnetic attraction between the second magnet 23 and the first magnet 22 not only improves the response speed of closing the drain port, ensuring that when the magnetic assembly 3 is powered off, the sealing cover plate 21 can quickly close the drain port 112 under the combined action of gravity and magnetic attraction, but also ensures that the sealing cover plate 21 can tightly and reliably close the drain port 112. In particular, to ensure that the magnetic assembly 3 can open the drain port 112 through magnetic attraction when powered on, the magnetic attraction generated by the magnetic assembly 3 when powered on is greater than the magnetic attraction between the second magnet 23 and the first magnet 22.

[0043] refer to Figure 2-4 A lower mounting groove 1151, recessed downward and open upward, is provided on the top surface of the mounting portion 115. The second magnet 23 is accommodated within the lower mounting groove 1151. To prevent the second magnet 23 from escaping upward from the lower mounting groove 1151, a plurality of lower stoppers 1152 are fixedly provided at circumferential intervals on the upper end of the groove wall of the lower mounting groove 1151. Each lower stopper 1152 is located above the second magnet 23. In this embodiment, each lower stopper 1152 is designed as a flange having a guide surface that guides the second magnet 23 as it is installed within the lower mounting groove 1151.

[0044] refer to Figure 1-3 The magnetic attraction component 3 includes a fixing base 31, an iron core 32 and a coil 33. The fixing base 31 is installed in the water collection chamber 111 and has a cavity 301. The iron core 32 is arranged in the cavity 301, and the coil 33 is arranged in the cavity 301 and is wound around the outer surface of the iron core 32. In this embodiment, the two opposite free ends of the coil 33 respectively form a first electrode 331 and a second electrode 332, and the first electrode 331 and the second electrode 332 are respectively used for connecting to electricity. When the coil 33 is energized, the iron core 32 generates a large magnetic field attraction, which attracts the first magnet 22 on the sealing cover plate 21, thereby causing the sealing cover plate 21 to flip upward and open the drain port 112, draining the condensed water in the water collection chamber 111; when the coil 33 is de-energized, the magnetic field attraction of the iron core 32 disappears, and the sealing cover plate 21 closes the drain port 112 again under the action of its own gravity and the magnetic attraction between the first magnet 22 and the second magnet.

[0045] In this embodiment, the fixing seat 31 abuts against the supporting portion 117 located on the wall of the water collecting chamber 111, so that the fixing seat 31 is reliably installed in the water collecting chamber 111. Figure 2 and Figure 6The fixing seat 31 includes a fixing bracket 311 having a cavity 301, and a top opening (not shown in the figure) connected to the cavity 301 is formed at the top of the fixing bracket 311. A plurality of radial ribs 3111 extending outward are circumferentially spaced apart on the outer wall of the fixing bracket 311, and the free end of each radial rib 3111 abuts against the top surface of the support portion 117.

[0046] In order to further improve the installation stability and reliability of the fixing seat 31 or the fixing bracket 311, an annular rib 3112 is provided on the periphery of the fixing bracket 311. The annular rib 3112 is arranged above the support portion 117 and abuts against the top surface of the support portion 117. One end of each radial rib 3111 is integrally formed with the side wall of the fixing bracket 311, and the other end is integrally formed with the radial inner side surface of the annular rib 3112. In addition, a positioning structure is provided between the annular rib 3112 and the support portion 117, or a positioning structure is provided between the annular rib 3112 and the cavity wall of the water collection chamber 111, wherein the positioning structure includes a latch 3113 and a positioning block 1171 that are matingly engaged. The positioning block 1171 is fixed to the top surface of the support portion 117 and is integrally formed with the cavity wall of the water collection chamber 111. The latch 3113 is provided on the annular rib 3112.

[0047] refer to Figure 2 and Figure 7 The fixing seat 31 also includes a fixing cover 312, which covers the top opening of the fixing bracket 311 and is detachably connected to the fixing bracket 311. Specifically, the fixing cover 312 is connected to the fixing bracket 311 by means of snaps or threads.

[0048] To facilitate electrical connection of the coil 23, the fixed cover 312 is provided with two openings (not shown) through which the coil 33 can pass. Specifically, the magnetic assembly 3 also includes a connector 34, which is a connecting screw. The connecting screw is inserted into one of the openings and fastened to the fixed cover 312. The second electrode 332 of the coil 33 is inserted upward through the other opening and then connected to the power supply. The first electrode 331 of the coil 33 is connected to the power supply via the connecting screw.

[0049] refer to Figure 1-2 and Figure 7The device also includes a liquid level detection component (not shown in the figure), which is arranged on the upper shell 12 of the shell component 1 and is used to detect the condensed water level in the water collecting chamber 111. The magnetic component 3 is electrically connected to the liquid level detection component. When the liquid level detection component detects that the condensed water level in the water collecting chamber 111 has risen to a preset water level, the circuit of the magnetic component 3 is connected, so that the iron core 32 in the magnetic component 3 generates a magnetic field attraction for attracting the first magnet 22 on the sealing cover plate 21; conversely, when the liquid level detection component does not detect that the condensed water level in the water collecting chamber 111 has risen to the preset water level, the circuit of the magnetic component 3 is not connected, and the iron core 32 does not generate a magnetic field attraction.

[0050] The liquid level detection assembly includes a first conductor 411 and a second conductor 412. The first conductor 411 is disposed within the water collection chamber 111 and connected to the housing assembly 1. The second conductor 412 is disposed within the water collection chamber 111 and electrically connected to the magnetic assembly 3. In this embodiment, the second conductor 412 is electrically connected to the first electrode 331 of the magnetic assembly 3. Thus, when the condensed water level within the water collection chamber 111 rises to a predetermined level, the condensed water simultaneously floods the first conductor 411 and the second conductor 412. At this point, the first conductor 411, the condensed water, the second conductor 412, the coil 33, and the power supply for electrically connecting the first conductor 411 to the second electrode 332 of the coil 33 form an electrical circuit. The circuit of the magnetic assembly 3 is connected and energized, and the iron core 32 generates a magnetic field attraction. It can be seen that the condensate water level in the water collecting chamber 111 serves as the basis or switch for whether the electrical circuit is closed. According to the condensate water level, the magnetic attraction component 3 is automatically controlled to be energized to generate magnetic field attraction, thereby automatically controlling the opening or closing of the valve component 2, and realizing reliable linkage between the condensate water level, the magnetic attraction component 3 and the valve component 2.

[0051] To facilitate electrical connection between the first conductor 411 and the second electrode 332 of the coil 33, the liquid level detection assembly further includes a first conductive plug 421 and a second conductive plug 422. The first conductive plug 421 is disposed outside the upper shell 12 of the housing assembly 1 and is electrically connected to the first conductor 411. The second conductive plug 422 is disposed outside the upper shell 12 of the housing assembly 1 and is electrically connected to the second conductor 412 via the second electrode 332 on the magnetic assembly 3.

[0052] To facilitate electrical connection, the liquid level detection assembly also includes two electrical connectors (not shown). Two electrical connectors are fixedly attached to the upper shell 12 of the housing assembly 1, located on opposite sides of the water inlet 121. The first conductive plug 421 is connected to the first conductor 411 via one of the electrical connectors, allowing the first conductor 411 to be electrically connected to the first conductive plug 421 via the electrical connector. The second electrode 332 on the magnetic assembly 3 is connected to the second conductive plug 422 via the other electrical connector, allowing the second conductor 412 to be electrically connected to the second conductive plug 422 via the magnetic assembly 3 and the other electrical connector.

[0053] In this embodiment, each electrical connector includes a matching screw 431 and nut 432. The screw 431 is inserted through the upper housing 12 of the housing assembly 1 and extends into the water collection chamber 111. The upper end of the screw 431 is securely connected to the first conductive plug 421 or the second conductive plug 422, and the lower end is securely connected to the nut 432 located in the water collection chamber 111. In addition, the lower end of one screw 431 is securely connected to the first conductor 411, and the lower end of the other screw 431 is securely connected to the second electrode 332 of the magnetic assembly 3.

[0054] Example 2

[0055] refer to Figure 8 The difference between this embodiment and embodiment 1 lies in the structure and movement of the valve assembly 2, as well as the connection method between the valve assembly 2 and the housing assembly 1. In this embodiment, the valve assembly 2 can move vertically or reciprocate vertically relative to the drain outlet 112.

[0056] The valve assembly 2 includes a sealing cover plate 21, two second magnets 23, and two first magnets 22. The sealing cover plate 21 is disposed within the water collection chamber 111 for vertical translational movement, and is used to open or close the upper end surface of the drain port 112. The two first magnets 22 are mounted at opposite ends of the sealing cover plate 21. The magnetic assembly 3 attracts the two first magnets 22 through magnetic attraction.

[0057] Two mounting portions 115 are fixedly provided in the water collection chamber 111, located on opposite sides of the drain outlet 112. The two mounting portions 115 are respectively located directly below the two first magnets 22. Two second magnets 23 are respectively provided on the two mounting portions 115, and each second magnet 23 is used to attract the first magnet 22 arranged near it. It is particularly noted that the magnetic field attraction force generated by the power supply of the magnetic attraction component 3 is greater than the sum of gravity and two magnetic attraction forces, wherein gravity includes the sum of the weight of the cover assembly 21 and the two first magnets 22, and each magnetic attraction force is the magnetic attraction force between the second magnet 23 and the first magnet 22.

[0058] In addition, a vertically arranged guide portion 116 is provided in the water collecting chamber 111, and the guide portion 116 is slidably connected to the sealing cover plate 21. In this way, the guide portion 116 guides the up and down reciprocating motion of the sealing cover plate 21, preventing the sealing cover plate 21 from shifting during the movement, thereby eliminating the phenomenon that the sealing cover plate 21 cannot completely close the drain outlet 112 due to displacement.

[0059] The above are only some embodiments of the present invention. For those skilled in the art, several modifications and improvements can be made without departing from the inventive concept of the present invention, which all fall within the scope of protection of the present invention.

Claims

1. A condensate collection and drainage device for a gas appliance, characterized in that: include: The housing assembly (1) comprises a water collecting chamber (111), a water inlet (121) and a water outlet (112), wherein the water collecting chamber (111) is connected to the water inlet (121) and the water outlet (112) respectively; a valve assembly (2) movably disposed in the water collecting chamber (111) and used for opening or closing the drain port (112); A magnetic attraction component (3) is arranged in the water collecting chamber (111) and is used to generate a magnetic field attraction force to attract the valve component (2), and the valve component (2) opens the drain port (112) under the attraction of the magnetic field attraction force; a liquid level detection component, disposed on the housing component (1) and electrically connected to the magnetic attraction component (3), and used for detecting the condensed water level in the water collection chamber (111); The magnetic attraction component (3) comprises a fixing seat (31), an iron core (32) and a coil (33); the fixing seat (31) is installed in the water collecting chamber (111) and has a cavity (301); the iron core (32) is arranged in the cavity (301); the coil (33) is arranged in the cavity (301) and is wound around the outer surface of the iron core (32); the two opposite free ends of the coil (33) respectively form a first electrode (331) and a second electrode (332); The liquid level detection component comprises a first conductor (411) and a second conductor (412), wherein the first conductor (411) is arranged in the water collection chamber (111) and connected to the housing component (1), and the second conductor (412) is arranged in the water collection chamber (111) and electrically connected to the first electrode (331) of the magnetic attraction component (3).

2. The condensate collection and drainage device for a gas appliance according to claim 1, characterized in that: A hinged portion (114) located outside the drain outlet (112) is provided in the water collecting chamber (111); the valve assembly (2) includes a sealing cover plate (21) and a first magnet (22); the sealing cover plate (21) is rotatably provided in the water collecting chamber (111) and is used to open or close the drain outlet (112); one end of the sealing cover plate (21) is rotatably connected to the hinged portion (114), and the other end is provided with the first magnet (22); the magnetic attraction assembly (3) attracts the first magnet (22) through magnetic field attraction, so that the sealing cover plate (21) opens the drain outlet (112).

3. The condensate collection and drainage device for a gas appliance according to claim 2, characterized in that: A mounting portion (115) located outside the drain outlet (112) is provided in the water collecting chamber (111), and the mounting portion (115) is arranged opposite to the hinge portion (114); the valve assembly (2) further comprises a second magnet (23), which is provided on the mounting portion (115) and is used to attract the first magnet (22) above the mounting portion, so that the sealing cover plate (21) closes the drain outlet (112).

4. The condensate collection and drainage device for a gas appliance according to claim 1, characterized in that: Two mounting portions (115) are provided in the water collecting chamber (111) and are located on opposite sides of the drain outlet (112); the valve assembly (2) comprises a sealing cover plate (21), two second magnets (23) and two first magnets (22); the sealing cover plate (21) is arranged in the water collecting chamber (111) in a translationally movable manner and is used to open or close the drain outlet (112); the two second magnets (23) are respectively arranged on the two mounting portions (115); the two first magnets (22) are respectively arranged at opposite ends of the sealing cover plate (21); and each first magnet (22) is used to attract the magnetic attraction assembly (3) and the corresponding second magnet (23).

5. The condensate collection and drainage device for a gas appliance according to claim 1, characterized in that: A support portion (117) is circumferentially provided on the upper end of the cavity wall of the water collecting cavity (111); the fixing seat (31) includes a fixing bracket (311) having a cavity (301); a top opening communicating with the cavity (301) is formed at the top of the fixing bracket (311); a plurality of radial ribs (3111) extending outward are circumferentially spaced apart on the outer wall of the fixing bracket (311); the free end of each radial rib (3111) abuts against the top surface of the support portion (117).

6. The condensate collection and drainage device for a gas appliance according to claim 5, characterized in that: An annular rib (3112) is provided on the periphery of the fixing bracket (311), and each of the radial ribs (3111) abuts against the top surface of the support portion (117) through the annular rib (3112).

7. The condensate collection and drainage device for a gas appliance according to claim 5, characterized in that: The fixing seat (31) further comprises a fixing cover plate (312), which covers the top opening and is detachably connected to the fixing bracket (311), and is provided with two openings for the coil (33) to pass through.

8. The condensate collection and drainage device for a gas appliance according to claim 1, characterized in that: The liquid level detection component further comprises a first conductive plug (421) and a second conductive plug (422), wherein the first conductive plug (421) is arranged outside the housing component (1) and electrically connected to the first conductor (411), and the second conductive plug (422) is arranged outside the housing component (1), and the second conductive plug (422) is electrically connected to the second conductor (412) via the magnetic attraction component (3).

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