Hot water supply device

Abstract

The utility model provides hot water supply equipment which comprises a shell, a cavity is formed in the shell, a combustion chamber assembly and a fan are arranged in the cavity, an air inlet is formed in the shell, the height of the air inlet is larger than or equal to that of the combustion chamber assembly in the height direction of the hot water supply equipment, and the fan is arranged below the combustion chamber assembly. Air in the cavity flows into the fan from the air inlet through the cavity; the hot water supply equipment further comprises a first flow uniformizing structure, the first flow uniformizing structure is arranged corresponding to the combustion area of the combustion chamber assembly and located between the air inlet and the draught fan in the height direction, the first flow uniformizing structure divides the cavity, and the first flow uniformizing structure is provided with a plurality of first through holes corresponding to a front plate and / or a rear plate of the shell of the combustion chamber assembly. The first flow uniformizing structure is provided with a plurality of second through holes corresponding to the side plates of the shell of the combustion chamber assembly, and the sum of the circulation areas of the first through holes of the front plate and / or the rear plate is smaller than or equal to the sum of the circulation areas of the second through holes of the single side plates in the shell of the combustion chamber assembly.

Description

TECHNICAL FIELD

[0001] The utility model relates to a hot water supply equipment. BACKGROUND

[0002] The current hot water supply equipment (such as dual-purpose stove or water heater) usually includes a first energy supply unit and a heat exchange unit, the first energy supply unit is used to heat the water in the heat exchange unit to produce hot water as domestic water or geothermal heating use. The energy supply unit can generally use gas as energy, and the water is heated by burning gas, and the flue gas generated by burning gas needs to be discharged to the outdoor through the flue pipe.

[0003] The existing hot water supply equipment is usually provided with an air inlet at the bottom, and a fan is arranged near the top of the hot water supply equipment to form a negative pressure to suck the air outside the air inlet into the hot water supply equipment. The air enters the hot water supply equipment from the air inlet and flows from bottom to top along the height direction of the hot water supply equipment. However, it is found in actual use that the flow path of the air sucked by the fan in the hot water supply equipment is single, and most of the air flow flows along the shortest path between the air inlet and the fan, which makes the air flow entering the combustion chamber assembly uneven, and turbulence noise and insufficient combustion are easy to occur. Not only will affect the efficiency of the whole machine, flue gas emission, and even safety problems may occur. SUMMARY

[0004] The technical problem to be solved by the utility model is to overcome the uneven distribution of air flow in the hot water supply equipment and the insufficient combustion defect in the prior art, and to provide a hot water supply equipment.

[0005] The utility model solves the above technical problems through the following technical scheme:

[0006] A hot water supply equipment, the hot water supply equipment includes a shell, the shell has a cavity, the cavity is provided with a combustion chamber assembly and a fan, the shell is provided with an air inlet, along the height direction of the hot water supply equipment, the setting height of the air inlet is higher than or equal to the setting height of the combustion chamber assembly, the fan is arranged below the combustion chamber assembly, and the air flow direction in the cavity is from the air inlet to the fan through the cavity.

[0007] The hot water supply device further comprises a first flow uniformizing structure, which is arranged corresponding to the combustion area of the combustion chamber assembly and is located between the air inlet and the fan in the height direction, the first flow uniformizing structure divides the chamber, the first flow uniformizing structure is provided with a plurality of first through holes corresponding to the front plate and / or the rear plate of the shell of the combustion chamber assembly, and the first flow uniformizing structure is provided with a plurality of second through holes corresponding to the side plate of the shell of the combustion chamber assembly, wherein the sum of the flow areas of the first through holes of the front plate and / or the rear plate is less than or equal to the sum of the flow areas of the second through holes of the single side plate of the shell of the combustion chamber assembly.

[0008] In the scheme, by arranging the air inlet above the combustion chamber assembly and arranging the fan below the combustion chamber assembly, the original air flow path from bottom to top is changed, so that the air with lower temperature from the outside can flow through the chamber and the surface of the shell of the combustion chamber assembly, thereby cooling the shell and keeping the shell within a reasonable temperature range, thereby prolonging the service life of the internal structure of the hot water supply device. Further, by arranging the first flow uniformizing structure, the air flow through the side plate of the shell is significantly increased, specifically by limiting the air flow area of the second through hole on the side plate corresponding to the first flow uniformizing structure to be greater than or equal to the air flow area of the first through hole on the front plate corresponding to the first flow uniformizing structure, so that the air does not flow along the shortest path between the air inlet and the fan, the air flow in the chamber is more uniform, the cooling effect of the shell is remarkable, and the uniform air flow can reduce turbulent noise when entering the fan and ensure more complete combustion, which not only improves the efficiency and smoke emission of the whole machine, but also ensures the use safety of the hot water supply device.

[0009] Preferably, the air inlet is arranged on the back plate of the shell, and the opening of the air inlet faces the top of the hot water supply device in the height direction of the hot water supply device, and the air inlet is a louver hole.

[0010] Preferably, the rear plate of the shell of the combustion chamber assembly is attached to the back plate of the shell, and each first through hole is arranged between the front plate of the shell of the combustion chamber assembly and the shell.

[0011] Preferably, the first flow uniformizing structure is a horizontally extending plate structure.

[0012] In the scheme, the above arrangement is used to reduce the noise radiation outside the chamber through the louvers when the air inlet is inhaled, and at the same time, the opening is directed towards the top of the hot water supply device, which can avoid dust entering the chamber and keep the chamber clean compared with the opening directed towards the bottom of the hot water supply device. The back plate is attached to the back plate of the shell, so that the air flows from the front plate and the side plate, and the back plate is indirectly heated by directly contacting with the air outside the shell with lower temperature, so as to keep the temperature in a reasonable temperature range.

[0013] Preferably, the hot water supply device further comprises a circuit module, which is arranged opposite to the fan, and the air in the chamber flows into the fan through the gap between the circuit module and the air inlet hole of the fan.

[0014] In the scheme, the above arrangement is used to cool the circuit module with the air with lower temperature entering the fan, so as to ensure the service life of the circuit module, and the circuit module is arranged opposite to the fan, which releases the space originally used for separately arranging the circuit module, so that the volume of the hot water supply device can be further reduced, and the hot water supply device is suitable for modification and replacement in limited space.

[0015] Preferably, the shape of the air inlet hole is a non-circular hole, and the air inlet area of the air inlet hole is larger than that of a circular hole.

[0016] In the scheme, the shape and air inlet area of the air inlet hole are used to increase the air inlet amount of the fan, so as to ensure the combustion efficiency.

[0017] Preferably, the fan is in communication with the combustion chamber assembly, and a second uniform flow structure is further arranged at the communication position of the fan and the combustion chamber assembly, and the cross section of the second uniform flow structure is in "V" type structure or horn shape.

[0018] In the scheme, the above arrangement is used to guide the air flowing from the fan to the combustion chamber assembly through the second uniform flow structure, so that the air flow vortex entering the combustion chamber assembly is greatly reduced compared with the case without the uniform flow structure, the noise is correspondingly reduced, and the combustion is more sufficient.

[0019] Preferably, the fan is arranged away from the central axis of the hot water supply device, and the extension size of the second uniform flow structure on the side close to the fan is smaller than that on the side away from the fan.

[0020] In the scheme, the fan is arranged away from the central axis, and then the inside of the chamber is rearranged, so as to reasonably utilize the space, and the second uniform flow structure corresponds to the offset fan, so as to ensure that the air flow vortex entering the combustion chamber assembly is greatly reduced, the noise is correspondingly reduced, and the combustion is more sufficient.

[0021] Preferably, the second flow uniformity structure extends to the inner wall of the side plate of the outer shell of the combustion chamber assembly.

[0022] In this solution, the second flow uniformity structure is extended to ensure the flow uniformity.

[0023] Preferably, the combustion chamber assembly further comprises a third flow uniformity structure, which is arranged between the fire grate and the inlet of the combustion chamber assembly along the air inlet direction of the combustion chamber assembly, and the third flow uniformity structure extends outward from the edge of the fire grate of the combustion chamber assembly, and the air entering the fire grate of the combustion chamber assembly from the inlet of the combustion chamber assembly passes through the third flow uniformity structure.

[0024] In this solution, the third flow uniformity structure is used to block the air entering the combustion chamber assembly from the fan, so that the flow rate is reduced, the air volume is not too large, the air speed is not too fast, and the "flame separation" phenomenon of some fire holes of the fire grate is prevented.

[0025] Preferably, the cross section of the third flow uniformity structure is in "L" shape or "one" shape.

[0026] In this solution, the third flow uniformity structure is used to block the air entering the combustion chamber assembly from the fan, so that the flow rate is reduced, the air volume is not too large, the air speed is not too fast, and the "flame separation" phenomenon of some fire holes of the fire grate is prevented.

[0027] Preferably, the third flow uniformity structure is provided with an air adjusting opening corresponding to the fire grate of the combustion chamber assembly, and the size of the air adjusting opening is greater than that of the air inlet of the fire grate of the combustion chamber assembly.

[0028] And / or, the third flow uniformity structure is further provided with a supplementary air opening, which is located at the edge of the third flow uniformity structure away from the fire grate of the combustion chamber assembly.

[0029] In this solution, the air adjusting opening is used to reduce the air speed while ensuring sufficient air volume entering the fire grate. Further, the supplementary air opening is provided to increase the local air volume, so that the combustion of each fire hole of the fire grate is more uniform, and the flame height tends to be consistent.

[0030] Preferably, the hot water supply device further comprises a water pump assembly, which is arranged offset from the central axis of the hot water supply device and located at the side of the fan.

[0031] In this solution, the water pump assembly is arranged offset from the central axis of the hot water supply device and located at the side of the fan, so as to reasonably utilize the space at the side of the fan, avoid the increase of the volume of the hot water supply device due to the separate occupation of the space of the hot water supply device in the height direction by the water pump assembly, and keep the volume of the hot water supply device small.

[0032] Preferably, the hot water supply equipment further includes a water valve assembly, the outlet of which is connected to the inlet of the water pump assembly, and the water pump assembly and the water valve assembly are integrated.

[0033] In this solution, the above-mentioned setup is used to further save space within the cavity.

[0034] Preferably, the first flow equalization structure has a clearance groove on the water pipe corresponding to the water pump assembly or the water valve assembly.

[0035] In this scheme, the above-mentioned settings are used to avoid structural interference between the first flow uniform structure and the water pipe.

[0036] The positive and progressive effects of this invention are as follows: By placing the air inlet above the combustion chamber assembly and the fan below it, the original bottom-up airflow path is altered. This allows cooler outside air to flow from the air inlet through the chamber and across the outer surface of the combustion chamber assembly, thereby cooling the outer shell and maintaining it within a reasonable temperature range, thus extending the service life of the internal structure of the hot water supply equipment. Furthermore, by incorporating a first flow equalization structure, the airflow through the side plate of the outer shell is significantly increased. This is achieved by limiting the airflow area of ​​the second through-hole on the corresponding side plate of the first flow equalization structure to be greater than or equal to the airflow area of ​​the first through-hole on the corresponding front plate of the first flow equalization structure. This prevents air from flowing along the shortest path from the air inlet to the fan, resulting in more uniform airflow within the chamber. This significantly enhances the cooling effect on the outer shell. The uniform airflow also reduces turbulence noise and ensures more complete combustion when entering the fan, improving overall efficiency and flue gas emissions, while also ensuring the safe operation of the hot water supply equipment. Attached Figure Description

[0037] Figure 1 This is a perspective view of a hot water supply device according to a preferred embodiment of the present invention.

[0038] Figure 2 This is a schematic diagram of the structure of a hot water supply device according to a preferred embodiment of the present invention.

[0039] Figure 3 This is an exploded view of the structure of a hot water supply device according to a preferred embodiment of the present invention.

[0040] Figure 4 This is a perspective view of the first uniform flow structure of a preferred embodiment of the present invention.

[0041] Figure 5 This is a perspective view of a fan according to a preferred embodiment of the present invention.

[0042] Figure 6Isometric view of a combustion chamber assembly according to a preferred embodiment of the present utility model.

[0043] Figure 7 Exploded view of the structure of the second flow equalizing structure and the combustion chamber assembly according to a preferred embodiment of the present utility model.

[0044] Figure 8 Schematic diagram of the air flow direction through the second flow equalizing structure according to a preferred embodiment of the present utility model.

[0045] Figure 9 Isometric view of a water pump assembly and a water valve assembly according to a preferred embodiment of the present utility model.

[0046] Figure 10 Schematic diagram of the structure of the third flow equalizing structure according to a preferred embodiment of the present utility model.

[0047] Figure 11 Schematic diagram of the structure of the third flow equalizing structure with an "L" - shaped cross - section according to a preferred embodiment of the present utility model.

[0048] Figure 12 Position relationship diagram of the air supply port and the air adjustment port according to a preferred embodiment of the present utility model.

[0049] Figure 13 Schematic diagram of the structure of the third flow equalizing structure with a "one" - shaped cross - section according to a preferred embodiment of the present utility model.

[0050] Explanation of reference numerals:

[0051] Shell 1, chamber 11, air inlet 12, back plate 13, combustion chamber assembly 2, outer shell 21, front plate 211, rear plate 212, side plate 213, third flow equalizing structure 22, air adjustment port 221, air supply port 222, burner 23, inlet 24, fan 3, air inlet hole 31, first flow equalizing structure 4, first through - hole 41, second through - hole 42, avoidance groove 43, circuit module 5, second flow equalizing structure 6, water pump assembly 7, water valve assembly 8, height direction A, width direction B. Detailed implementation manners

[0052] The following gives a preferred embodiment and combines with the attached drawings to more clearly and completely illustrate the present utility model.

[0053] This embodiment provides a hot - water supply device, which is specifically a gas water heater in this embodiment. When the hot - water supply device is a gas water heater, the device can produce hot water for domestic use. In other embodiments, the hot - water supply device can also be a dual - purpose furnace, and the device can simultaneously produce hot water for domestic use and geothermal heating. The specific structure is as Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 、Figure 5 , Figure 6 , Figure 7 , Figure 8 and Figure 9 As shown, the hot water supply equipment includes a housing 1, a chamber 11 inside the housing 1, a combustion chamber assembly 2 and a fan 3 disposed inside the chamber 11, an air inlet 12 is provided on the housing 1, and the height of the air inlet 12 along the height direction A of the hot water supply equipment is higher than or equal to the height of the combustion chamber assembly 2, the fan 3 is disposed below the combustion chamber assembly 2, and the air flow direction in the chamber 11 is from the air inlet 12 through the chamber 11 into the fan 3;

[0054] The hot water supply equipment also includes a first flow equalization structure 4, which is set in the combustion area of ​​the combustion chamber assembly 2 and located between the air inlet 12 and the fan 3 in the height direction A. The first flow equalization structure 4 divides the chamber 11. The first flow equalization structure 4 is provided with a plurality of first through holes 41 on the front plate 211 and / or rear plate 212 of the outer shell 21 of the combustion chamber assembly 2. The first flow equalization structure 4 is provided with a plurality of second through holes 42 on the side plate 213 of the outer shell 21 of the combustion chamber assembly 2. The sum of the flow areas of the first through holes 41 on the front plate 211 and / or rear plate 212 is less than or equal to the sum of the flow areas of the second through holes 42 on a single side plate 213 in the outer shell 21 of the combustion chamber assembly 2.

[0055] Specifically, the housing 1 has a chamber 11, which is the space between the inner wall of the housing 1 and the internal structure of the hot water supply equipment for air circulation. In this embodiment, the air inlet 12 is located on the housing 1, and the height of the air inlet 12 is higher than or equal to the height of the combustion chamber assembly 2. The fan 3 is located below the combustion chamber assembly 2. This changes the airflow direction from the traditional bottom to the top of the housing 1 to the top to the bottom of the housing 1 and into the fan 3. Compared to the case where the fan 3 is located at the bottom of the housing 1 and the airflow is from bottom to top, this embodiment changes the airflow direction so that the air with a lower ambient temperature comes into contact with the outer shell 21 of the combustion chamber assembly 2 before entering the fan 3. Since the combustion chamber assembly 2 is located in the chamber 11 and between the air inlet 12 and the fan 3, the air will inevitably flow through the outer shell 21, thereby cooling the outer shell 21 and keeping it within a reasonable temperature range, such as 150°C, thereby extending the service life of the internal structure of the hot water supply equipment. Meanwhile, the noise generated by the fan 3 can be blocked by the outer casing 21 to reduce the noise radiation to the outside of the chamber 11.

[0056] In addition, the first flow equalization structure 4 is disposed in the chamber 11 and located between the air inlet 12 and the fan 3 in the height direction A. The first flow equalization structure 4 is located on the outer shell 21 of the combustion chamber assembly 2 and is disposed corresponding to the combustion area of ​​the combustion chamber assembly 2. The first flow equalization structure 4 separates the path of air flowing from the air inlet 12 to the fan 3. The first flow equalization structure 4 is provided with a plurality of first through holes 41 corresponding to the front plate 211 and / or rear plate 212 of the outer shell 21 of the combustion chamber assembly 2. The first flow equalization structure 4 is provided with a plurality of second through holes 42 corresponding to the side plate 213 of the outer shell 21 of the combustion chamber assembly 2. When the air with a lower ambient temperature flows into the chamber 11 from the air inlet 12, it flows to the fan 3 through the first through holes 41 and the second through holes 42. The sum of the flow areas of the first through holes 41 of the front plate 211 and / or rear plate 212 is less than or equal to the sum of the flow areas of the second through holes 42 of a single side plate 213 in the outer shell 21 of the combustion chamber assembly 2. Compared to the shortest path of airflow along the inlet 12 to the fan 3, the airflow through the side plate 213 of the casing 21 is significantly increased. The airflow path is shown below. Figure 2 and Figure 3 As shown, the arrow indicates the direction of airflow. Specifically, this is achieved by limiting the airflow area of ​​the second through hole 42 on the side plate 213 corresponding to the first uniform flow structure 4 to be greater than or equal to the airflow area of ​​the first through hole 41 on the front plate 211 and / or rear plate 212 corresponding to the first uniform flow structure 4. This makes the airflow in the chamber 11 more uniform, resulting in a significant cooling effect on the outer shell 21. The uniform airflow can also reduce turbulence noise and ensure more complete combustion when entering the fan 3. This not only improves the overall efficiency and flue gas emissions but also ensures the safety of the hot water supply equipment.

[0057] It is understandable that multiple first through holes 41 and second through holes 42 can be provided, and the sum of the air circulation areas of the first through holes 41 on the corresponding front plate 211 or the corresponding rear plate 212 is less than the sum of the air circulation areas of the second through holes 42 on the corresponding side plate 213.

[0058] Furthermore, in this embodiment, the air inlet 12 is disposed on the back plate 13 of the housing 1 along the height direction A of the hot water supply device, the opening of the air inlet 12 faces the top of the hot water supply device, and the air inlet 12 is a louvered hole.

[0059] Specifically, the louvered holes are the existing hole structure. Since the air flow direction in this embodiment is from top to bottom, the opening of the air inlet 12 is oriented towards the top of the hot water supply device. After the air enters the air inlet 12, it first flows towards the top of the hot water supply device and bypasses the top of the combustion chamber assembly 2, and then flows towards the front plate 211. This reduces the outward radiation of noise from the chamber 11. At the same time, compared with the opening facing the bottom of the hot water supply device, it can prevent dust from entering the chamber 11 and keep the cleanliness of the chamber 11.

[0060] In this embodiment, the rear plate 212 of the outer shell 21 of the combustion chamber assembly 2 is attached to the back plate 13 of the housing 1, and each first through hole 41 is disposed between the front plate 211 of the outer shell 2 of the combustion chamber assembly 2 and the housing 1.

[0061] Specifically, the outer shell 21 is attached to the back plate 13. Compared with the outer shell 21 and the back plate 13 being spaced apart, when air flows from the air inlet 12 through the outer shell 21, it can only flow through the front plate 211 and the side plates 213 on both sides. The first uniform flow structure 4 also extends only to the front plate 211 and the side plates 213 on both sides. The rear plate 212 indirectly exchanges heat with the outside air at a lower temperature through direct contact with the back plate 13 of the shell 1, keeping its temperature within a reasonable temperature range.

[0062] Furthermore, the first flow equalization structure 4 is a horizontally extending plate-like structure. It is perpendicular to the front plate 211 and the side plate 213 and extends to the inner wall of the housing 1, thereby achieving the separation of the chamber 11, so that air can only flow to the fan 3 through the first through hole 41 and the second through hole 42, and the difference in air flow area between the first through hole 41 and the second through hole 42 ensures that air can effectively pass through the side plate 213.

[0063] In this embodiment, the hot water supply equipment also includes a circuit module 5, which is arranged opposite to the fan 3, and the air in the chamber 11 flows into the fan 3 through the gap between the circuit module 5 and the air inlet 31 of the fan 3.

[0064] Specifically, the circuit module 5 is a structure already in the prior art. This embodiment does not improve upon it, but instead changes its position from occupying space in the height direction A to being positioned opposite the fan 3, that is, positioned opposite the fan 3 along the width direction B of the hot water supply equipment, with a gap between them. When air enters the fan 3, it passes through the outer surface of the circuit module 5 and enters the air inlet 31. The air agitation brought by the fan 3 will cool down the components inside the circuit module 5. The circuit module 5 will also block the noise emitted by the fan 3, preventing noise from being transmitted out of the hot water supply equipment. Furthermore, the positioning of the circuit module 5 opposite to the fan 3 frees up the space that was originally used for a separate circuit module 5, allowing the volume of the hot water supply equipment to be further reduced, making it suitable for the modification and replacement of hot water supply equipment in limited spaces.

[0065] In this embodiment, the air inlet 31 is a non-circular hole and the air inlet area of ​​the air inlet 31 is larger than that of a circular hole.

[0066] Specifically, the air inlet 31 is elliptical or other larger than a circular hole, such as a rectangular hole. One end of the rectangular hole is located at the axis of the fan 3, and the other end is offset from the axis. This is to increase the air intake of the fan 3 by utilizing the shape and air intake area of ​​the air inlet 31, thereby ensuring combustion efficiency.

[0067] In this embodiment, the fan 3 is connected to the combustion chamber assembly 2, and a second flow equalization structure 6 is also provided at the connection between the fan 3 and the combustion chamber assembly 2. The cross-section of the second flow equalization structure 6 is a "V" shaped structure or a trumpet-shaped structure.

[0068] Specifically, the air outlet of the blower 3 is connected to the inlet of the combustion chamber assembly 2. A second flow equalization structure 6 is also provided at the connection between the blower 3 and the combustion chamber assembly 2. The second flow equalization structure 6 is a horizontally extending plate-like structure with a "V"-shaped or trumpet-shaped cross-section. The "trough" of the "V"-shaped or trumpet-shaped structure is connected to the air outlet, while the "peak" extends towards the burner of the combustion chamber assembly 2. This allows the air flowing from the blower 3 into the combustion chamber assembly 2 to be guided by the second flow equalization structure 6. Compared to the case without a flow equalization structure, the airflow inside the outer shell 21 of the combustion chamber assembly 2, especially in the area near the side plate 213, is more sufficient. This significantly reduces the airflow vortex in the area near the side plate 213, correspondingly reducing the operating noise of the combustion chamber assembly 2 and resulting in more complete combustion.

[0069] In this embodiment, the fan 3 is positioned off-center from the central axis of the hot water supply equipment, and the extension dimension of the second flow equalization structure 6 on the side closer to the fan 3 is smaller than the extension dimension on the side farther away from the fan 3.

[0070] Specifically, the blower 3 is located below the combustion chamber assembly 2 and offset from the central axis of the hot water supply equipment, i.e., close to the side of the housing 1. This frees up space on the other side of the housing 1, allowing for the installation of internal structures for other hot water supply equipment. Consequently, the size of the hot water supply equipment can be further reduced, making it suitable for the modification and replacement of hot water supply equipment in limited spaces. Correspondingly, the second flow equalization structure 6, used to guide the air out of the blower 3, is also offset from the central axis of the hot water supply equipment. Furthermore, the extension dimension of the second flow equalization structure 6 on the side closer to the blower 3 is smaller than the extension dimension on the side farther from the blower 3. This significantly reduces airflow vortices entering the combustion chamber assembly 2, resulting in reduced noise and more complete combustion.

[0071] Furthermore, both sides of the second flow equalization structure 6 extend to the inner wall of the side plate 213 of the outer shell 21 of the combustion chamber assembly 2. The two sides of the second flow equalization structure 6 are arranged opposite each other and extend to the oppositely arranged side plates 213. Compared with the second flow equalization structure 6 that extends to the oppositely arranged side plates 213, the number of airflow vortices is further reduced to ensure its flow equalization effect.

[0072] like Figure 10 , Figure 11 , Figure 12 and Figure 13As shown, in this embodiment, the combustion chamber assembly 2 further includes a third flow equalization structure 22. The third flow equalization structure 22 is disposed between the burner 23 and the inlet 24 of the combustion chamber assembly 2 along the air intake direction of the combustion chamber assembly 2. The third flow equalization structure 22 extends outward from the edge of the burner 23 of the combustion chamber assembly 2, and the air entering the burner 23 of the combustion chamber assembly 2 from the inlet 24 of the combustion chamber assembly 2 passes around the third flow equalization structure 22.

[0073] Specifically, the burner 23 is located inside the outer casing 21, and the air inlet of the burner 23 is perpendicular to the inlet 24. This means that the air flowing in from the inlet 24 needs to change its flow direction before entering the burner 23. In this embodiment, a third flow equalization structure 22 is also provided on the end face where the air inlet of the burner 23 is located. The third flow equalization structure 22 is a plate and extends outward from the edge of the end face where the air inlet of the burner 23 is located. Its extension direction is perpendicular to the air intake direction of the air entering the burner 23 from the inlet 24. Compared with the combustion chamber assembly 2 without the third flow equalization structure 22, the combustion chamber assembly 2 with the third flow equalization structure 22 blocks the air entering the combustion chamber assembly 2 from the fan 3, reducing its flow velocity and preventing excessive air volume and speed, thus preventing some of the flame holes of the burner 23 from "flame detachment".

[0074] Furthermore, in this embodiment, the cross-section of the third flow uniform structure 22 is an "L" shaped structure or an "I" shaped structure.

[0075] The third flow equalization structure 22 has an "L" shaped cross-section. The part of the third flow equalization structure 22 protruding from the edge of the fire bar 23 is perpendicular to the inlet 24. As a result, when the air entering from the inlet 24 changes its flow direction after passing the bottom of the fire bar 23, the air needs to bypass the part of the third flow equalization structure 22 protruding from the edge of the fire bar 23 to further change its flow direction. At the same time, the flow path is extended, which effectively reduces the wind speed.

[0076] In this embodiment, the third uniform flow structure 22 has an air regulating port 221 corresponding to the burner 23 of the combustion chamber assembly 2. The size of the air regulating port 221 is larger than the size of the air inlet of the burner 23 of the combustion chamber assembly 2.

[0077] Specifically, the third uniform flow structure 22 is provided with an air regulating port 221 corresponding to the air inlet of the burner 23. The air regulating port 221 has the same shape as the air inlet and its size is larger than that of the air inlet. The larger size of the air regulating port 221 is used to ensure that the air volume entering the burner 23 is sufficient while the third uniform flow structure 22 reduces the wind speed.

[0078] Furthermore, an air inlet 222 is provided on the third uniform flow structure 22, and the air inlet 222 is located on the edge of the third uniform flow structure 22 away from the burner 3 of the combustion chamber assembly 2.

[0079] Specifically, the air supply port 222 is a round hole. The air supply port 222 is located on the part of the third flow equalization structure 22 that protrudes from the edge of the burner 23. It is set with the fan 3 off the central axis of the hot water supply equipment. When the extension dimension of the second flow equalization structure 6 on the side closer to the fan 3 is smaller than the extension dimension on the side farther away from the fan 3, the air supply port 222 is set on the side of the third flow equalization structure 22 with the larger extension dimension of the second flow equalization structure 6 to increase the local air volume, so that the combustion of each burner hole of the burner 23 is more uniform and the flame height tends to be consistent.

[0080] In this embodiment, the hot water supply equipment also includes a water pump assembly 7, which is offset from the central axis of the hot water supply equipment and located on the side of the fan 3.

[0081] Specifically, the water pump assembly 7 is a water pump structure in the prior art. In this embodiment, the water pump assembly 7 is located on the side of the fan 3, and the two do not interfere with each other. Along the height direction A, the water pump assembly 7 and the fan 3 are located in the same height area, thereby making reasonable use of the space on the side of the fan 3 and avoiding the situation where the volume of the hot water supply equipment increases when the water pump assembly 7 occupies the space in the height direction A of the hot water supply equipment alone, thus keeping the volume of the hot water supply equipment small.

[0082] In this embodiment, the hot water supply equipment also includes a water valve assembly 8, the outlet of which is connected to the inlet of the water pump assembly 7. The water pump assembly 7 and the water valve assembly 8 are integrated. Compared to the water pump assembly 7 and the water valve assembly 8 being connected through a connecting pipe, the outlet of the water valve assembly 8 is directly connected to the inlet of the water pump assembly 7, thereby further saving space in the chamber 11 in the vertical direction A.

[0083] It is understandable that the water valve assembly 8 is also located on the side of the fan 3, and the two do not interfere with each other. Furthermore, along the height direction A, the integrated water pump assembly 7 and water valve assembly 8 are located in the same height area as the fan 3.

[0084] In this embodiment, the first flow equalization structure 4 has a clearance groove 43 for the water pipe corresponding to the water pump assembly 7 or the water valve assembly 8. The water pipe is embedded in the clearance groove 43 to avoid structural interference between the first flow equalization structure 4 and the water pipe.

[0085] In addition to the structure described above, the hot water supply equipment in this embodiment also includes an intelligent voice control module. The intelligent voice control module includes a controller, a voice receiving module, and a voice parsing module. The voice receiving module receives user commands, and the voice parsing module parses the commands. Based on the parsed commands, the corresponding operations are executed, thereby realizing intelligent control of the hot water supply equipment without manual operation. This enhances the level of intelligence and improves the user experience of using the hot water supply equipment.

[0086] It should be noted that in this embodiment, the intelligent voice control module, including the controller, voice receiving module, and voice parsing module, are all existing voice structures. This embodiment does not improve their structure and logic, and will not elaborate further here.

[0087] While specific embodiments of this utility model have been described above, those skilled in the art should understand that these are merely illustrative examples, and the scope of protection of this utility model is defined by the appended claims. Those skilled in the art can make various changes or modifications to these embodiments without departing from the principles and essence of this utility model, but all such changes and modifications fall within the scope of protection of this utility model.

Claims

1. A hot water supply device, the hot water supply device comprising a housing, the housing having a chamber, the chamber being equipped with a combustion chamber assembly and a fan, characterized in that, An air inlet is provided on the housing. Along the height direction of the hot water supply equipment, the height of the air inlet is higher than or equal to the height of the combustion chamber assembly. The fan is located below the combustion chamber assembly. The air flow direction in the chamber is from the air inlet through the chamber into the fan. The hot water supply equipment further includes a first flow equalization structure, which is disposed corresponding to the combustion area of ​​the combustion chamber assembly and located in the height direction between the air inlet and the fan. The first flow equalization structure separates the chamber. The first flow equalization structure is provided with a plurality of first through holes on the front plate and / or rear plate of the outer shell of the combustion chamber assembly, and the first flow equalization structure is provided with a plurality of second through holes on the side plate of the outer shell of the combustion chamber assembly. The sum of the flow areas of the first through holes of the front plate and / or the rear plate is less than or equal to the sum of the flow areas of the second through holes of a single side plate in the outer shell of the combustion chamber assembly.

2. The hot water supply equipment as described in claim 1, characterized in that, The air inlet is located on the back plate of the housing. Along the height direction of the hot water supply equipment, the opening of the air inlet faces the top of the hot water supply equipment, and the air inlet is a louvered opening. And / or, the rear plate of the combustion chamber assembly housing is attached to the back plate of the housing, and each of the first through holes is disposed between the front plate of the combustion chamber assembly housing and the housing; And / or, the first flow uniform structure is a horizontally extending plate-like structure.

3. The hot water supply equipment as described in claim 1, characterized in that, The hot water supply equipment also includes a circuit module, which is arranged opposite to the fan, and the air in the chamber flows into the fan through the gap between the circuit module and the air inlet of the fan.

4. The hot water supply equipment as described in claim 3, characterized in that, The air inlet is non-circular in shape and its air inlet area is larger than that of a circular hole.

5. The hot water supply equipment as described in claim 1, characterized in that, The fan is connected to the combustion chamber assembly, and a second flow equalization structure is provided at the connection between the fan and the combustion chamber assembly. The cross-section of the second flow equalization structure is a "V" shaped structure or a trumpet-shaped structure.

6. The hot water supply equipment as described in claim 5, characterized in that, The fan is offset from the central axis of the hot water supply equipment, and the extension dimension of the second flow equalization structure on the side closer to the fan is smaller than the extension dimension on the side farther away from the fan. And / or, both sides of the second flow uniform structure extend to the inner wall of the side plate of the outer shell of the combustion chamber assembly.

7. The hot water supply equipment as described in claim 6, characterized in that, The combustion chamber assembly further includes a third flow equalization structure, which is disposed between the burner and the inlet of the combustion chamber assembly along the air intake direction of the combustion chamber assembly. The third flow equalization structure extends outward from the edge of the burner of the combustion chamber assembly, and the air entering the burner of the combustion chamber assembly from the inlet of the combustion chamber assembly passes around the third flow equalization structure.

8. The hot water supply equipment as described in claim 7, characterized in that, The cross-section of the third uniform flow structure is an "L" shaped structure or an "I" shaped structure.

9. The hot water supply equipment as described in claim 8, characterized in that, The third flow equalization structure has an air regulating port corresponding to the burner of the combustion chamber assembly, and the size of the air regulating port is larger than the size of the air inlet of the burner of the combustion chamber assembly. And / or, the third flow equalization structure is further provided with an air supply port, which is located at the edge of the third flow equalization structure away from the burner of the combustion chamber assembly.

10. The hot water supply equipment as described in claim 6, characterized in that, The hot water supply equipment also includes a water pump assembly, which is offset from the central axis of the hot water supply equipment and located on the side of the fan; And / or, the hot water supply equipment further includes a water valve assembly, the outlet of which is connected to the inlet of the water pump assembly, and the water pump assembly and the water valve assembly are integrated. And / or, the first flow equalization structure has a clearance groove in the water pipe corresponding to the water pump assembly or the water valve assembly.

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