Distributor, gas supply device and gas water heater

Abstract

The utility model relates to the technical field of distributors, and particularly discloses a distributor, a gas supply device and a gas water heater, the distributor comprises a main body, a gas inlet, a plurality of gas outlets, a plurality of gas outlets and a plurality of gas outlets, the main body is provided with a first cavity, the first cavity is communicated with the air inlet, and air flowing in from the air inlet can flow into the first cavity; the main body is provided with a second cavity with an open part, the second cavity is communicated with the plurality of gas outlets, and gas flowing into the second cavity can flow out from the gas outlets; the cover plate and the open part are arranged in a sealed and adaptive manner; in the gas flowing direction, the second cavity is arranged on the downstream of the first cavity, at least two communication parts are arranged between the first cavity and the second cavity, and at least one of the at least two communication parts can be independently opened or closed. According to the scheme, the area, needing to be sealed, of the cover plate can be reduced, the sealing difficulty is lowered, and the consistency of the gas output of the gas outlet and the flexibility of segmented adjustment can be guaranteed.

Description

Technical Field

[0001] This specification relates to the field of distributor technology, and in particular to a distributor, a gas supply device, and a gas water heater. Background Technology

[0002] The gas distributor is the core component of a gas water heater that automatically adjusts the combustion load. It contains multiple chambers through which gas flows to the combustion chamber. By controlling the connection and connection of each chamber, the combustion load is varied, ensuring precise temperature control of the gas water heater. However, existing gas distributors are bulky, expensive, and have inconsistent gas output from each outlet, making it difficult to meet the accuracy and consistency of the gas supply required for the burner's segmented combustion function. Currently, no effective solution has been proposed to address these issues. Utility Model Content

[0003] This specification provides a distributor, a gas supply device, and a gas water heater to solve the problems of high cost and poor consistency of gas output at each gas outlet in the prior art.

[0004] This specification provides an embodiment of a dispenser, including:

[0005] The main body has an air inlet and multiple air outlets; the main body is provided with a first cavity, which is connected to the air inlet, and gas flowing in from the air inlet can flow into the first cavity; the main body is provided with a second cavity having an open portion, which is connected to the multiple air outlets, and gas flowing into the second cavity can flow out from the air outlets.

[0006] A cover plate, wherein the cover plate is configured to be sealed and adapted to the opening;

[0007] Along the gas flow direction, the second cavity is located downstream of the first cavity, and at least two connecting parts are provided between the first cavity and the second cavity, at least one of the at least two connecting parts can be opened or closed independently.

[0008] In one embodiment, the first cavity and the second cavity are arranged parallel to each other and both extend in a straight line.

[0009] In one embodiment, the second cavity includes at least two mutually isolated sub-cavities, each of which has a communication portion with the first cavity.

[0010] In one embodiment, the extending direction of the connecting portion is perpendicular to the extending direction of the first cavity.

[0011] In one embodiment, the first cavity and the second cavity are arranged sequentially in the vertical direction, and the connecting portion extends in the vertical direction.

[0012] In one embodiment, the at least two mutually isolated sub-cavities include at least a first sub-cavity and a second sub-cavity; the at least two connecting portions include at least a first connecting portion and a second connecting portion, wherein the first connecting portion is disposed between the first cavity and the first sub-cavity, and the second connecting portion is disposed between the first cavity and the second sub-cavity.

[0013] In one embodiment, the number of air outlets communicating with the first sub-cavity is less than the number of air outlets communicating with the second sub-cavity; the gas passage resistance of the first communicating portion is greater than the gas passage resistance of the second communicating portion.

[0014] In one embodiment, the projected area of ​​the first connecting portion along the airflow direction is less than or equal to the projected area of ​​the second connecting portion along the airflow direction.

[0015] In one embodiment, both the first connecting portion and the second connecting portion are cylindrical, and at least a portion of the diameter of the first connecting portion is smaller than the diameter of the second connecting portion.

[0016] In one embodiment, the first connecting portion has a first connecting segment and a second connecting segment located downstream of the first connecting segment, wherein the diameter of the second connecting segment is smaller than the diameter of the first connecting segment.

[0017] In one embodiment, the length of the second cavity in the extending direction is greater than the length of the first cavity in the extending direction.

[0018] In one embodiment, the air inlet is oriented perpendicular to the extension direction of the first cavity; the air outlet is oriented perpendicular to the extension direction of the second cavity.

[0019] In one embodiment, the air outlet is oriented perpendicular to the cover plate, and the air inlet is oriented parallel to the air outlet.

[0020] In one embodiment, the main body is provided with an air intake channel that connects the air inlet to the first cavity, and at least a portion of the air intake channel connected to the first cavity extends in a direction perpendicular to the extension direction of the first cavity.

[0021] In one embodiment, the main body has a plurality of protrusions, and the plurality of protrusions are respectively arranged in a one-to-one correspondence with the plurality of air outlets. Each air outlet is formed at the outlet end of each protrusion, and an air outlet channel is formed in the protrusion for connecting the second cavity with the air outlet.

[0022] In one embodiment, the air outlet channel extends perpendicularly to the extension direction of the second cavity and the extension direction of the air outlet channel passes through the opening.

[0023] In one embodiment, the main body is provided with at least one switching valve, which is correspondingly provided with the connecting part, and the switching valve can open or close the connecting part.

[0024] In one embodiment, the switching valve includes a coil and a valve core, the valve core including a valve stem and a plug connected to the valve stem, the coil being used to drive the valve stem to move, thereby causing the plug to open or close the communication portion.

[0025] In one embodiment, the main body is provided with a valve core assembly cavity for the switching valve, and the valve core assembly cavity is disposed between the first cavity and the communicating portion.

[0026] In one embodiment, the valve core assembly cavity is provided with an installation port, through which the valve core of the switching valve can extend into the valve core assembly cavity.

[0027] In one embodiment, the orientation of the mounting port is perpendicular to the extension direction of the first cavity.

[0028] In one embodiment, the two valve core assembly cavities are respectively located near the two ends of the main body, or the two valve core assembly cavities are respectively located at the two ends of the main body.

[0029] In one embodiment, the main body has a connecting plate portion that connects the outer wall of the first cavity to the outer wall of the second cavity, and the connecting plate portion is a solid structure.

[0030] In one embodiment, along the vertical extension direction of the connecting plate, the first cavity and the second cavity are respectively disposed on both sides of the connecting plate portion.

[0031] In one embodiment, the cover plate and the opening are detachably connected by a fastener.

[0032] In one embodiment, a sealing element is provided between the opening and the cover plate, the sealing element being used to provide a sealing fit between the cover plate and the opening.

[0033] This specification also provides an embodiment of a gas supply device, including:

[0034] The distributor described in any of the above embodiments;

[0035] An air valve, comprising a valve body having an inlet and an outlet; the outlet of the air valve is connected to the air inlet of the distributor.

[0036] In one embodiment, the inlet of the air valve is oriented perpendicular to the extension direction of the first cavity of the distributor; and / or,

[0037] The outlet of the air valve is oriented parallel to the air inlet of the distributor.

[0038] In one embodiment, the valve body is provided with a first assembly hole and a second assembly hole, the first assembly hole being used to install a first valve and the second assembly hole being used to install a second valve.

[0039] The valve body is provided with a first chamber, a second chamber and a third chamber. The second chamber is located between the first chamber and the third chamber. The first chamber is connected to the inlet. Gas entering from the inlet flows into the first chamber. The third chamber is connected to the outlet. Gas flowing into the third chamber flows out from the outlet and enters the first cavity of the distributor through the air inlet of the distributor.

[0040] A first connection port is provided on the wall of the first chamber, which is located between the first chamber and the second chamber. The first connection port can be opened or closed by the first valve. A second connection port is provided on the wall of the second chamber, which is located between the second chamber and the third chamber. The second connection port can be opened or closed by the second valve.

[0041] In one embodiment, the opening of the first assembly hole is parallel to the extension direction of the first cavity;

[0042] The opening of the second assembly hole is perpendicular to the extension direction of the first cavity.

[0043] This specification also provides an embodiment of a gas water heater, including:

[0044] The gas supply device described in any of the above embodiments;

[0045] The housing, wherein the gas supply device is at least partially disposed within the housing.

[0046] In one embodiment, a portion of the bottom of the housing is provided with a protrusion for accommodating a portion of the gas supply device.

[0047] In one embodiment, the gas water heater further includes:

[0048] A combustion device, comprising a frame and a plurality of burners mounted within the frame, wherein a plurality of air outlets of the distributor are configured to correspond to the inlets of the plurality of burners.

[0049] The technical solution in this specification has the following significant advantages:

[0050] The dispenser provided in this embodiment includes a main body and a cover plate. The main body has a first cavity and a second cavity. The first cavity does not require sealing with the cover plate, while the second cavity has an open portion adapted to seal with the cover plate, reducing the area that the cover plate needs to seal and lowering the sealing difficulty. Furthermore, compared to the prior art where the first and second cavities are sealed with a cover plate and located on the same side of the cover plate, in this embodiment, the cover plate only needs to seal the second cavity. This allows for more flexible arrangement of the first and second cavities; they can be located on the same side of the cover plate or on opposite sides, making the dispenser structure more flexible and reducing its size. In addition, the main body has multiple air outlets, meaning the air outlets can be integrally formed with the main body, ensuring consistent airflow. At least two connecting portions are provided between the first and second cavities, and at least one of these connecting portions can be independently opened or closed, allowing for more flexible segmented adjustment. In one embodiment, the distributor further includes a plurality of switching valves for opening or closing the communication section. The two valve core assembly cavities for mounting the two switching valves are respectively located near or at the two ends of the main body, so that the two switching valves are respectively located near or at the two ends of the main body, which can avoid the existence of dead zones in the main body that gas cannot reach, thereby reducing the volume of the distributor, reducing material waste, and reducing manufacturing costs. Attached Figure Description

[0051] The accompanying drawings described herein are for illustrative purposes only and are not intended to limit the scope of this invention in any way. Furthermore, the shapes and proportions of the components in the drawings are merely schematic to aid in understanding the invention and do not specifically limit the shapes and proportions of the components. Those skilled in the art, under the guidance of this invention, can select various possible shapes and proportions to implement this invention according to specific circumstances. In the drawings:

[0052] Figure 1 A perspective view of a dispenser according to one embodiment of this specification is shown;

[0053] Figure 2 A perspective view of the main body of the dispenser in one embodiment of this specification is shown;

[0054] Figure 3 A perspective view of a dispenser according to one embodiment of this specification is shown;

[0055] Figure 4 A front view of the dispenser in one embodiment of this specification is shown;

[0056] Figure 5 A rear view of the dispenser in one embodiment of this specification is shown;

[0057] Figure 6 A cross-sectional view of a dispenser according to one embodiment of this specification is shown;

[0058] Figure 7 A front view of the dispenser in one embodiment of this specification is shown;

[0059] Figure 8 A rear view of the dispenser in one embodiment of this specification is shown;

[0060] Figure 9 A cross-sectional view of a dispenser according to one embodiment of this specification is shown;

[0061] Figure 10 A front view of the gas supply device in one embodiment of this specification is shown;

[0062] Figure 11 A cross-sectional view of the gas supply device in one embodiment of this specification is shown;

[0063] Figure 12 A schematic diagram of a gas water heater according to one embodiment of this specification is shown.

[0064] The reference numerals in the above figures are as follows:

[0065] 10. Distributor; 11. Main body; 12. Cover plate; 101. Air inlet; 102. Air outlet; 120. Boss; 121. First air outlet group; 122. Second air outlet group; 103. First cavity; 104. Second cavity; 140. Opening part; 141. First sub-cavity; 142. Second sub-cavity; 105. Connecting part; 151. First connecting part; 152. Second connecting part; 153. First connecting section; 154. Second connecting section; 106. Valve core assembly cavity; 107. Switch valve; 108. Fixing component; 109. Air inlet channel; 110. Connecting plate part;

[0066] 20. Gas supply device;

[0067] 30. Air valve; 301. Inlet; 303. First valve; 304. Second valve;

[0068] 1. Gas water heater; 40. Shell; 41. Recess; 50. Combustion device. Detailed Implementation

[0069] The principles and spirit of this specification will now be described with reference to several exemplary embodiments. It should be understood that these embodiments are given merely to enable those skilled in the art to better understand and implement this specification, and are not intended to limit the scope of this specification in any way. Rather, these embodiments are provided to make this disclosure more thorough and complete, and to fully convey the scope of this disclosure to those skilled in the art.

[0070] The details of this utility model can be more clearly understood by referring to the accompanying drawings and the description of specific embodiments. However, the specific embodiments of this utility model described herein are only for explaining the purpose of this utility model and should not be construed as limiting this utility model in any way. Under the teachings of this utility model, those skilled in the art can conceive of any possible modifications based on this utility model, and these should all be considered to fall within the scope of this utility model. It should be noted that when an element is referred to as being "set on" another element, it can be directly on the other element or there may be an intervening element. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or there may be an intervening element. The terms "mounted," "connected," and "connected" should be interpreted broadly, for example, it can be a mechanical connection or an electrical connection, or it can be a connection within two elements, which can be a direct connection or an indirect connection through an intermediate medium. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only embodiments.

[0071] 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 specification belongs. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of this specification. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0072] This specification provides an example of a dispenser. Figures 1 to 9 A schematic diagram of the dispenser in one embodiment of this specification is shown. Figure 3 , Figure 4 and Figure 7 As shown, the dispenser 10 may include a body 11 and a cover 12. For example... Figure 1 , Figure 5 and Figure 8As shown, an air inlet 101 is formed on the main body 11. The air inlet 101 can be an opening on the main body 11. A first cavity 103 is provided on the main body 11. The first cavity 103 is connected to the air inlet 101. Gas flowing in from the air inlet 101 can flow into the first cavity 103.

[0073] like Figure 1 , Figure 5 , Figure 6 , Figure 8 and Figure 9 As shown, a plurality of air outlets 102 are also formed on the main body 11. The air outlets 102 can be openings or nozzles on the main body 11. Figure 2 As shown, the main body 11 is provided with a second cavity 104 having an opening 140. The second cavity 104 is connected to a plurality of air outlets 102. Gas flowing into the second cavity 104 flows out or is ejected from the air outlets 102.

[0074] Along the gas flow direction, the second cavity 104 is located downstream of the first cavity 103. For example... Figure 6 and Figure 8 As shown, at least two connecting portions 105 are provided between the first cavity 103 and the second cavity 104. At least one of the at least two connecting portions 105 can be independently opened or closed. When the connecting portion 105 is open, gas in the first cavity 103 can flow into the second cavity 104 through the connecting portion 105. By controlling the on / off state of at least one connecting portion 105, the gas flow rate from the first cavity 103 to the second cavity 104 can be adjusted, improving the flexibility of segmented adjustment.

[0075] In the above embodiments, the dispenser includes a main body 11 and a cover plate 12. The main body 11 is provided with a first cavity 103 and a second cavity 104. The first cavity 103 does not require sealing by the cover plate 12, and the second cavity 104 has an open portion 140 that is adapted to seal the cover plate 12. This reduces the area that the cover plate 12 needs to seal, lowers the sealing difficulty, and ensures the sealing performance of the first cavity 103. Moreover, compared with the prior art where the first cavity 103 and the second cavity 104 are sealed by the cover plate 12 and are located on the same side of the cover plate 12, in the embodiments of this specification, the cover plate 12 only needs to seal the second cavity 104. This makes the arrangement of the first cavity 103 and the second cavity 104 more flexible. The first cavity 103 and the second cavity 104 can be located on the same side of the cover plate 12 or on opposite sides of the cover plate 12, making the dispenser structure more flexible and reducing the size of the dispenser. Furthermore, multiple air outlets 102 are formed on the main body 11, meaning that the air outlets 102 can be integrally formed with the main body 11, ensuring consistent air output from the air outlets 102. By providing at least two connecting portions 105 between the first cavity 103 and the second cavity 104, and at least one of the connecting portions 105 being independently openable or closed, more flexible segmented adjustment is possible.

[0076] like Figures 1 to 9 As shown, in some embodiments of this specification, the first cavity 103 and the second cavity 104 are arranged in parallel and both extend in a straight direction. By arranging the first cavity 103 and the second cavity 104 in parallel, the longitudinal height of the dispenser can be reduced, thereby reducing the required assembly volume of the dispenser. By arranging the first cavity 103 and the second cavity 104 to extend in a straight direction, the manufacturing process of the dispenser body 11 can be simplified.

[0077] In some embodiments of this specification, the second cavity 104 includes at least two mutually isolated sub-cavities, each sub-cavity having a communication portion 105 between it and the first cavity 103. In one embodiment, at least one partition can be provided within the second cavity 104 to divide it into at least two sub-cavities. Each sub-cavity has a communication portion 105 between it and the first cavity 103. At least one of the communication portions 105 can be independently opened or closed. When the communication portion 105 is open, gas in the first cavity 103 can flow into the corresponding sub-cavity via the communication portion 105. By providing multiple mutually isolated sub-cavities within the second cavity 104, gas distribution can be better achieved, and segmented adjustment can be flexibly performed.

[0078] like Figure 6 and Figure 9As shown, in some embodiments of this specification, the extending direction of the connecting portion 105 is perpendicular to the extending direction of the first cavity 103. Since the extending directions of the first cavity 103 and the second cavity 104 are parallel, by setting the extending direction of the connecting portion 105 to be perpendicular to the extending direction of the first cavity 103, it is convenient to connect the first cavity 103 and the second cavity 104.

[0079] like Figures 4 to 9 As shown, in some embodiments of this specification, the first cavity 103 and the second cavity 104 are sequentially arranged in a vertical direction, and the connecting portion 105 extends in a vertical direction. The vertical direction is... Figures 4 to 9 The arrow shown indicates the vertical direction after the dispenser is installed. The first cavity 103 can be located below the second cavity 104, and the connecting part 105 is located between the first cavity 103 and the second cavity 104, extending in the vertical direction to connect the first cavity 103 and the second cavity 104.

[0080] like Figure 6 and Figure 9 As shown, in some embodiments of this specification, at least two mutually isolated sub-cavities include at least a first sub-cavity 141 and a second sub-cavity 142. At least two connecting portions 105 include at least a first connecting portion 151 and a second connecting portion 152. The first connecting portion 151 is disposed between the first cavity 103 and the first sub-cavity 141, for connecting the first cavity 103 and the first sub-cavity 141. The second connecting portion 152 is disposed between the first cavity 103 and the second sub-cavity 142, for connecting the first cavity 103 and the second sub-cavity 142.

[0081] like Figure 6 and Figure 9 As shown, in some embodiments of this specification, the first sub-cavity 141 is connected to the first air outlet group 121 among a plurality of air outlets 102. The second sub-cavity 142 is connected to the second air outlet group 122 among a plurality of air outlets 102. The number of air outlets 102 in the first air outlet group 121 is less than the number of air outlets 102 in the second air outlet group 122. The gas passage resistance of the first connecting portion 151 is greater than the gas passage resistance of the second connecting portion 152. Since the number of air outlets 102 in the first air outlet group 121 is less than the number of air outlets 102 in the second air outlet group 122, setting the gas passage resistance of the first connecting portion 151 to be greater than the gas passage resistance of the second connecting portion 152 can ensure the consistency of the gas output of the air outlets 102 in the first air outlet group 121 and the air outlets 102 in the second air outlet group 122.

[0082] In some embodiments of this specification, the projected area of ​​the first connecting portion 151 along the airflow direction is less than or equal to the projected area of ​​the second connecting portion 152 along the airflow direction. By setting the connecting area of ​​the second connecting portion 152 to be greater than the connecting area of ​​the first connecting portion 151, the gas passage resistance of the second connecting portion 152 can be made greater than the gas passage resistance of the first connecting portion 151, thereby ensuring the consistency of the gas output of the gas outlet 102 in the first gas outlet group 121 and the gas outlet 102 in the second gas outlet group 122.

[0083] In some embodiments of this specification, both the first connecting portion 151 and the second connecting portion 152 are cylindrical, and at least a portion of the diameter of the first connecting portion 151 is smaller than the diameter of the second connecting portion 152. By setting at least a portion of the diameter of the first connecting portion 151 to be smaller than the diameter of the second connecting portion 152, it can be ensured that the gas passage resistance of the first connecting portion 151 is greater than the gas passage resistance of the second connecting portion 152.

[0084] In some embodiments of this specification, the first connecting portion 151 has a first connecting segment 153 and a second connecting segment 154 located downstream of the first connecting segment 153, wherein the diameter of the second connecting segment 154 is smaller than the diameter of the first connecting segment 153. Compared to setting both the first connecting segment 153 and the second connecting segment 154 to have small diameters, in this embodiment, setting the diameter of the downstream second connecting segment 154 to be smaller than the diameter of the upstream first connecting segment 153 can reduce pressure loss, avoid a relatively low pressure value inside the cavity, thereby improving the gas outlet stability of the gas outlet 102, and thus improving combustion stability.

[0085] Similarly, the second connecting part 152 can also be configured to have two connecting segments. The diameter of the upstream connecting segment can be larger than the diameter of the downstream connecting segment.

[0086] like Figures 4 to 9 As shown, in some embodiments of this specification, the length of the second cavity 104 in the extending direction is greater than the length of the first cavity 103 in the extending direction.

[0087] like Figure 1 , Figure 5 and Figure 8 As shown, in some embodiments of this specification, the orientation of the air inlet 101 is perpendicular to the extending direction of the first cavity 103. For example... Figure 1 , Figure 6 and Figure 9 As shown, the orientation of the air outlet 102 is perpendicular to the extension direction of the second cavity 104.

[0088] In some embodiments of this specification, the air outlet 102 is oriented perpendicular to the cover plate 12, and the air inlet 101 is oriented parallel to the air outlet 102. By setting the orientation of the air outlet 102 and the air inlet 101 to be perpendicular to the cover plate 12, the longitudinal height of the distributor can be reduced, thereby reducing the assembly volume of the distributor.

[0089] like Figure 1 , Figure 5 and Figure 8 As shown, in some embodiments of this specification, the main body 11 is provided with an air intake channel 109 that connects the air intake port 101 to the first cavity 103. At least a portion of the air intake channel 109 connected to the first cavity 103 extends in a direction perpendicular to the extension direction of the first cavity 103.

[0090] like Figure 1 As shown, in some embodiments of this specification, the main body 11 has a plurality of protrusions 120. Each of the protrusions 120 corresponds to a plurality of air outlets 102. Each air outlet 102 is formed at the outlet end of each protrusion 120. An air outlet channel is formed within the protrusion 120. The air outlet channel connects the second cavity 104 to the air outlet 102. By forming a nozzle as an air outlet 102 on the main body 11, it is convenient to integrally form the main body 11 and the nozzle, ensuring the consistency of the air output of each nozzle.

[0091] like Figure 1 As shown, in some embodiments of this specification, the extending direction of the air outlet channel is perpendicular to the extending direction of the second cavity 104 and the extending direction of the air outlet channel passes through the opening 140. That is, the opening of the air outlet 102 is perpendicular to the extending direction of the second cavity 104 and passes through the opening 140.

[0092] like Figures 4 to 6 As shown, in some embodiments of this specification, at least one switching valve 107 is provided on the main body 11, and the switching valve 107 is correspondingly provided with the connecting part 105. The switching valve 107 can open or close the connecting part 105. By providing a switching valve 107 corresponding to the connecting part 105, it is convenient to independently control the on / off state of the connecting part 105, thereby allowing for flexible segmented adjustment.

[0093] In some embodiments of this specification, the switching valve 107 includes a coil and a valve core. The valve core includes a valve stem and a plug connected to the valve stem. The coil is used to drive the valve stem to move, thereby causing the plug to open or close the communication portion 105.

[0094] like Figures 4 to 9As shown, in some embodiments of this specification, the main body 11 is provided with a valve core assembly cavity 106 for the switching valve 107. The valve core assembly cavity 106 is disposed between the first cavity 103 and the communicating portion 105. The valve core assembly cavity 106 is used to install the valve core of the switching valve 107.

[0095] like Figures 4 to 9 As shown, in some embodiments of this specification, the valve core assembly cavity 106 is provided with an installation port. For example... Figures 4 to 6 As shown, the valve core of the switching valve 107 can extend into the valve core assembly cavity 106 through the mounting port.

[0096] like Figures 7 to 9 As shown, in some embodiments of this specification, the orientation of the mounting port is perpendicular to the extension direction of the first cavity 103. By setting the orientation of the mounting port to be perpendicular to the extension direction of the first cavity 103, it is convenient for the switching valve 107 to control the on / off state of the communication portion 105 between the first cavity 103 and the second cavity 104.

[0097] like Figures 4 to 9 As shown, in some embodiments of this specification, the two valve core assembly cavities 106 are respectively disposed near the two ends of the main body 11. Alternatively, the two valve core assembly cavities 106 are respectively disposed at the two ends of the main body 11. In this way, the valve cores of the two switching valves 107 installed in the two valve core assembly cavities 106 are respectively located at or near the two ends of the main body 11, such as... Figure 6 As shown. Through the above embodiments, dead zones that gas cannot reach within the cavity of the main body 11 can be avoided, thereby reducing the volume of the distributor, reducing material waste, and lowering manufacturing costs.

[0098] like Figure 2 and Figure 3 As shown, in some embodiments of this specification, a connecting plate portion 110 is formed on the main body 11 to connect the outer wall of the first cavity 103 and the outer wall of the second cavity 104. The connecting plate portion 110 is a solid structure. The first cavity 103 and the second cavity 104 can be connected through the connecting plate portion 110.

[0099] like Figure 3 As shown, in some embodiments of this specification, the first cavity 103 and the second cavity 104 are respectively disposed on both sides of the connecting plate portion 110 along the vertical extension direction of the connecting plate. Since the cover plate 12 only needs to be sealed and adapted to the opening of the second cavity 104, the first cavity 103 and the second cavity 104 can be located on both sides of the connecting plate portion 110. By disposing the first cavity 103 and the second cavity 104 on both sides of the connecting plate portion, it is convenient for the distributor 10 to cooperate with other components in the gas water heater.

[0100] like Figure 3 , Figure 4and Figure 7 As shown, in some embodiments of this specification, the cover plate 12 and the opening 140 are detachably connected by a fastener 108. The fastener 108 detachably and securely connects the cover plate 12 to the opening 140 of the second cavity 104, thereby sealing the opening 140 of the second cavity 104.

[0101] In some embodiments of this specification, a sealing element is provided between the opening 140 and the cover plate 12. The sealing element is used to ensure a sealing fit between the cover plate 12 and the opening 140. In one embodiment, the sealing element may be a sealing ring. The sealing element is disposed between the cover plate 12 and the opening 140 of the second cavity 104 to ensure a sealing connection between the cover plate 12 and the opening 140 of the second cavity 104. By providing the sealing element, the airtightness of the second cavity 104 can be guaranteed.

[0102] This specification also provides an air supply device 20 in its embodiments. Please refer to... Figure 10 and Figure 11 The diagram shows a front view and a cross-sectional view of the gas supply device 20 in an embodiment of this specification. Figure 10 and Figure 11 As shown, the gas supply device 20 may include a gas valve 30 and a distributor 10 as described in any of the above embodiments. The implementation of the distributor 10 can refer to any of the above embodiments, and will not be described in detail here.

[0103] The air valve 30 may include a valve body. The valve body may have an inlet 301 and an outlet (not shown in the figure). The distributor 10 may be connected to the air valve 30, such that the outlet of the air valve 30 communicates with the inlet of the distributor 10. Gas flowing into the valve body from the inlet 301 of the air valve 30 can flow out from the outlet of the air valve 30 and flow into the first chamber 103 of the distributor 10 via the inlet of the distributor 10. The air valve 30 can at least control the flow of air, thereby controlling whether gas flows into the first chamber 103. The air valve 30 can also control the magnitude of the air flow, thereby controlling the magnitude of the air flow into the first chamber 103.

[0104] The gas supply device 20 in the above embodiment includes a distributor 10 and a gas valve 30. The distributor includes a main body 11 and a cover plate 12. The main body 11 is provided with a first cavity 103 and a second cavity 104. The first cavity 103 does not require sealing by the cover plate 12. The second cavity 104 has an open portion 140 that is adapted to seal the cover plate 12, thereby reducing the area that the cover plate 12 needs to seal, reducing the sealing difficulty, and ensuring the sealing performance of the first cavity 103. Furthermore, compared to the prior art where the first cavity 103 and the second cavity 104 are sealed by the cover plate 12 and located on the same side of the cover plate 12, in this embodiment, the cover plate 12 only needs to seal the second cavity 104. This allows for a more flexible arrangement of the first cavity 103 and the second cavity 104. The first cavity 103 and the second cavity 104 can be located on the same side of the cover plate 12 or on opposite sides of the cover plate 12, making the distributor's structure more flexible and reducing its volume. In addition, multiple air outlets 102 are formed on the main body 11, meaning that the air outlets 102 can be integrally formed with the main body 11, ensuring consistent air output from the air outlets 102. By providing at least two connecting portions 105 between the first cavity 103 and the second cavity 104, and at least one of these connecting portions 105 being independently openable or closed, more flexible segmented adjustment is possible. The valve body of the air valve 30 is provided with an inlet 301 and an outlet. The outlet of the air valve 30 is connected to the air inlet 101 of the distributor 10, and is used to control the flow of air and the amount of air flowing into the first chamber 103.

[0105] like Figure 10 and Figure 11 As shown, in some embodiments of this specification, the opening of the inlet 301 of the air valve 30 is perpendicular to the extension direction of the first cavity 103 of the distributor 10.

[0106] In some embodiments of this specification, the outlet of the air valve 30 is oriented parallel to the air inlet 101 of the distributor 10. The opening of the inlet 301 of the air valve 30 is oriented parallel to the opening of the air inlet 101 of the distributor 10, facilitating the flow of gas from the valve body of the air valve 30 into the first cavity 103 of the distributor 10.

[0107] In some embodiments of this specification, the valve body is provided with a first mounting hole and a second mounting hole (not shown in the figure). The first mounting hole is used to install the first valve 303, and the second mounting hole is used to install the second valve 304.

[0108] The valve body contains a first chamber, a second chamber, and a third chamber. The second chamber is located between the first and third chambers. The first chamber is connected to an inlet 301. Gas entering through the inlet 301 flows into the first chamber. The third chamber is connected to an outlet. Gas flowing into the third chamber exits through the outlet and enters the first cavity 103 of the distributor 10 via the inlet 101. A first connecting port is provided on the wall of the first chamber. The first connecting port is located between the first and second chambers. The first connecting port can be opened or closed by a first valve 303. When the first connecting port is open, gas in the first chamber can flow into the second chamber. A second connecting port is provided on the wall of the second chamber. The second connecting port is located between the second and third chambers. The second connecting port can be opened or closed by a second valve 304. When the second connecting port is open, gas in the second chamber can flow into the third chamber. By providing the first valve 303 and the second valve 304, the flow of air can be controlled.

[0109] In some embodiments of this specification, the opening of the first mounting hole is parallel to the extending direction of the first cavity 103. That is, the extending direction of the first valve 303 is parallel to the extending direction of the first cavity 103.

[0110] In some embodiments of this specification, the opening of the second mounting hole is perpendicular to the extending direction of the first cavity 103. That is, the extending direction of the second valve 304 is perpendicular to the extending direction of the first cavity 103.

[0111] This specification also provides an embodiment of a gas water heater 1. Please refer to... Figure 12 The diagram shows a structural schematic of the gas water heater 1 in an embodiment of this specification. Figure 12 As shown, the gas water heater 1 may include: a housing 40 and a gas supply device 20 according to any of the above embodiments. The gas supply device 20 is at least partially disposed within the housing 40.

[0112] In some embodiments of this specification, a protrusion 41 is provided at the bottom of a portion of the housing 40, the protrusion 41 being used to accommodate a portion of the air supply device 20. For example... Figure 12 As shown, the protrusion 41 can accommodate part of the second valve 304. By providing the protrusion 41 to accommodate part of the gas supply device 20, the overall volume of the gas water heater 1 can be reduced.

[0113] In some embodiments of this specification, the gas water heater 1 may further include a combustion device 50. The combustion device 50 may include a frame and a plurality of burners mounted in the frame. The plurality of gas outlets 102 of the distributor 10 are correspondingly arranged with the inlets of the plurality of burners, so that the gas ejected from the gas outlets 102 can enter the frame through the corresponding inlets and be burned by the corresponding burners.

[0114] The various embodiments in this specification are described in a progressive manner. Similar or identical parts between embodiments can be referred to interchangeably. Each embodiment focuses on describing the differences from other embodiments. For details, please refer to the foregoing descriptions of the relevant processing embodiments; they will not be repeated here.

[0115] It should be understood that the above description is for illustrative purposes and not for limitation. Many embodiments and applications beyond the provided examples will be apparent to those skilled in the art upon reading the above description. Therefore, the scope of this specification should not be determined by reference to the above description, but rather by reference to the foregoing claims and the full scope of their equivalents.

[0116] The above description is merely a preferred embodiment of this specification and is not intended to limit this specification. Various modifications and variations can be made to the embodiments described herein by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this specification should be included within the scope of protection of this specification.

Claims

1. A dispenser, characterized in that, include: The main body has an air inlet and multiple air outlets; the main body is provided with a first cavity, which is connected to the air inlet, and gas flowing in from the air inlet can flow into the first cavity; the main body is provided with a second cavity having an open portion, which is connected to the multiple air outlets, and gas flowing into the second cavity can flow out from the air outlets. A cover plate, wherein the cover plate is configured to be sealed and adapted to the opening; Along the gas flow direction, the second cavity is located downstream of the first cavity, and at least two connecting parts are provided between the first cavity and the second cavity, at least one of the at least two connecting parts can be opened or closed independently.

2. The dispenser as claimed in claim 1, characterized in that, The first cavity and the second cavity are arranged in parallel and both extend in a straight line.

3. The dispenser as described in claim 1 or 2, characterized in that, The second cavity includes at least two mutually isolated sub-cavities, each of which has a communication portion with the first cavity.

4. The dispenser as claimed in claim 3, characterized in that, The extension direction of the connecting portion is perpendicular to the extension direction of the first cavity.

5. The dispenser as claimed in claim 4, characterized in that, The first cavity and the second cavity are arranged sequentially in the vertical direction, and the connecting portion extends in the vertical direction.

6. The dispenser as claimed in claim 3, characterized in that, The at least two mutually isolated sub-cavities include at least a first sub-cavity and a second sub-cavity; the at least two connecting portions include at least a first connecting portion and a second connecting portion, wherein the first connecting portion is disposed between the first cavity and the first sub-cavity, and the second connecting portion is disposed between the first cavity and the second sub-cavity.

7. The dispenser as claimed in claim 6, characterized in that, The number of air outlets communicating with the first sub-cavity is less than the number of air outlets communicating with the second sub-cavity; the gas passage resistance of the first communicating part is greater than the gas passage resistance of the second communicating part.

8. The dispenser as claimed in claim 7, characterized in that, The projected area of ​​the first connecting part along the airflow direction is less than or equal to the projected area of ​​the second connecting part along the airflow direction.

9. The dispenser as claimed in claim 7, characterized in that, Both the first connecting portion and the second connecting portion are cylindrical, and at least part of the diameter of the first connecting portion is smaller than the diameter of the second connecting portion.

10. The dispenser as claimed in claim 9, characterized in that, The first connecting portion has a first connecting segment and a second connecting segment located downstream of the first connecting segment, the diameter of the second connecting segment being smaller than the diameter of the first connecting segment.

11. The dispenser as claimed in claim 1 or 2, characterized in that, The length of the second cavity in the extending direction is greater than the length of the first cavity in the extending direction.

12. The dispenser as claimed in claim 1 or 2, characterized in that, The air inlet is oriented perpendicular to the extension direction of the first cavity; the air outlet is oriented perpendicular to the extension direction of the second cavity.

13. The dispenser as claimed in claim 1 or 2, characterized in that, The air outlet is oriented perpendicular to the cover plate, and the air inlet is oriented parallel to the air outlet.

14. The dispenser as claimed in claim 3, characterized in that, The main body is provided with an air intake channel that connects the air inlet to the first cavity, and at least a portion of the air intake channel connected to the first cavity extends in a direction perpendicular to the extension direction of the first cavity.

15. The dispenser according to claim 3, characterized in that, The main body has multiple protrusions, and each of the protrusions corresponds to a multiple air outlet. Each air outlet is formed at the outlet end of each protrusion, and an air outlet channel is formed inside the protrusion. The air outlet channel is used to connect the second cavity with the air outlet.

16. The dispenser as claimed in claim 15, characterized in that, The air outlet channel extends perpendicularly to the extension direction of the second cavity and passes through the opening.

17. The dispenser as claimed in claim 3, characterized in that, The main body is provided with at least one switch valve, which is correspondingly provided with the connecting part, and the switch valve can open or close the connecting part.

18. The dispenser as claimed in claim 17, characterized in that, The switching valve includes a coil and a valve core. The valve core includes a valve stem and a sealing element connected to the valve stem. The coil is used to drive the valve stem to move, so as to cause the sealing element to open or close the communication part.

19. The dispenser as claimed in claim 17, characterized in that, The main body is provided with a valve core assembly cavity for the switching valve, and the valve core assembly cavity is located between the first cavity and the communicating portion.

20. The dispenser as claimed in claim 19, characterized in that, The valve core assembly cavity is provided with an installation port, through which the valve core of the switching valve can extend into the valve core assembly cavity.

21. The dispenser as claimed in claim 20, characterized in that, The orientation of the mounting port is perpendicular to the extension direction of the first cavity.

22. The dispenser as claimed in claim 19, characterized in that, The two valve core assembly cavities are respectively located near the two ends of the main body, or the two valve core assembly cavities are respectively located at the two ends of the main body.

23. The dispenser as claimed in claim 3, characterized in that, The main body has a connecting plate portion that connects the outer wall of the first cavity to the outer wall of the second cavity, and the connecting plate portion is a solid structure.

24. The dispenser as claimed in claim 23, characterized in that, Along the vertical extension direction of the connecting plate, the first cavity and the second cavity are respectively disposed on both sides of the connecting plate portion.

25. The dispenser according to claim 1, characterized in that, The cover plate and the opening are detachably connected by a fastener.

26. The dispenser according to claim 1, characterized in that, A sealing element is provided between the opening and the cover plate, the sealing element being used to ensure a sealing fit between the cover plate and the opening.

27. A gas supply device, characterized in that, include: Distributor according to any one of claims 1 to 26; An air valve, comprising a valve body having an inlet and an outlet; the outlet of the air valve is connected to the air inlet of the distributor.

28. The gas supply device according to claim 27, characterized in that, The inlet of the air valve is oriented perpendicular to the extension direction of the first cavity of the distributor; and / or, The outlet of the air valve is oriented parallel to the air inlet of the distributor.

29. The gas supply device according to claim 27, characterized in that, The valve body is provided with a first assembly hole and a second assembly hole. The first assembly hole is used to install a first valve, and the second assembly hole is used to install a second valve. The valve body is provided with a first chamber, a second chamber and a third chamber. The second chamber is located between the first chamber and the third chamber. The first chamber is connected to the inlet. Gas entering from the inlet flows into the first chamber. The third chamber is connected to the outlet. Gas flowing into the third chamber flows out from the outlet and enters the first cavity of the distributor through the air inlet of the distributor. A first connection port is provided on the wall of the first chamber, which is located between the first chamber and the second chamber. The first connection port can be opened or closed by the first valve. A second connection port is provided on the wall of the second chamber, which is located between the second chamber and the third chamber. The second connection port can be opened or closed by the second valve.

30. The gas supply device according to claim 29, characterized in that, The opening of the first assembly hole is parallel to the extension direction of the first cavity; The opening of the second assembly hole is perpendicular to the extension direction of the first cavity.

31. A gas water heater, characterized in that, include: The gas supply device according to any one of claims 27 to 30; The housing, wherein the gas supply device is at least partially disposed within the housing.

32. The gas water heater according to claim 31, characterized in that, The bottom of a portion of the housing is provided with a protrusion, which is used to accommodate part of the gas supply device.

33. The gas water heater according to claim 31, characterized in that, Also includes: A combustion device, comprising a frame and a plurality of burners mounted within the frame, wherein a plurality of air outlets of the distributor are configured to correspond to the inlets of the plurality of burners.

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