Gas water heater

Abstract

This invention relates to the field of kitchen appliance technology, and more particularly to a gas water heater, including a burner assembly. The burner assembly includes an inner enclosure plate and an outer enclosure plate. The inner enclosure plate forms a combustion chamber, and the outer enclosure plate is located outside the inner enclosure plate. An air-cooled partition is formed between the outer enclosure plate and the inner enclosure plate. The gas water heater also includes a partition and a drive structure. The partition is disposed within the air-cooled partition to divide the air-cooled partition into an inner channel and an outer channel. A ventilation hole is provided in the middle section of the partition in the vertical direction, so that the air-cooled partition is divided into an upper air chamber with a first air-cooled flow channel passing through the ventilation hole and a lower air chamber with a second air-cooled flow channel. The lower air chamber is located below the upper air chamber in the vertical direction. Two drive structures are arranged at intervals in the vertical direction. One drive structure is connected to the upper end of the partition to drive the upper end of the partition to move in the left-right direction, and the other drive structure is connected to the lower end of the partition to drive the lower end of the partition to move in the left-right direction.

Description

Technical Field

[0001] This invention relates to the field of kitchen appliance technology, and more particularly to a gas water heater. Background Technology

[0002] During operation, gas water heaters generate a large amount of heat from the combustion heat exchange components. Prolonged high-temperature operation can lead to problems such as aging of internal components, excessive shell temperature rise, and decreased accuracy of outlet water temperature control. Therefore, air-cooled heat dissipation structures are widely used in gas water heaters, as exemplified by patent CN120140758A, which addresses this heat dissipation issue through an air-cooled structure. However, existing air-cooled structures cannot dynamically adjust the airflow ratio of the air-cooling channels, failing to achieve adaptive heat dissipation adjustment under all operating conditions. This makes it difficult to simultaneously meet the demands of low-temperature anti-condensation and high-temperature strong heat dissipation. Specifically, when the water heater's combustion load changes dynamically, under low-load, low-temperature conditions, a fixed airflow setting that is too high can easily lead to excessively low combustion chamber temperatures, causing incomplete gas combustion, condensation and dripping from the heat exchanger, and corrosion of internal components. Under high-load, high-temperature conditions, a fixed airflow setting that is too low can easily lead to untimely heat dissipation from the heat exchange components, resulting in excessive temperature rise of the entire unit. This not only increases energy consumption but also shortens the water heater's lifespan and may even pose safety hazards.

[0003] Therefore, there is an urgent need to design a gas water heater to solve the above technical problems. Summary of the Invention

[0004] The purpose of this invention is to provide a gas water heater that can dynamically adjust the air volume to adapt to different combustion loads and improve the overall stability and safety of the machine.

[0005] To achieve this objective, the present invention adopts the following technical solution: A gas water heater is provided, including a burner assembly. The burner assembly includes an inner enclosure plate and an outer enclosure plate. The inner enclosure plate forms a combustion chamber, and the outer enclosure plate is located outside the inner enclosure plate. An air-cooled partition is formed between the outer enclosure plate and the inner enclosure plate. The gas water heater further includes: A partition is disposed within the air-cooled partition to divide the air-cooled partition into an inner channel and an outer channel. The partition has ventilation holes in the middle section in the vertical direction, so that the air-cooled partition is divided into an upper air cavity that passes through the ventilation holes and has a first air-cooling flow channel and a lower air cavity that has a second air-cooling flow channel. The lower air cavity is located below the upper air cavity in the vertical direction. The driving structure includes two driving structures spaced apart in the vertical direction. One driving structure is connected to the upper end of the partition to drive the upper end of the partition to move in the horizontal direction, and the other driving structure is connected to the lower end of the partition to drive the lower end of the partition to move in the horizontal direction.

[0006] Optionally, the gas water heater further includes a housing with an inner cavity, the burner assembly being located in the inner cavity, the drive structure including a drive member, a lead screw, a connector, and a fixed seat, the fixed seat being connected to the housing, the lead screw being rotatably connected to the fixed seat, the drive member being used to drive the lead screw to rotate, the connector being threadedly sleeved on the lead screw, and the housing being used to restrict the connector to move only along the axial direction of the lead screw; One of the connecting parts of the two drive structures is a fixed connecting part and the other is a movable connecting part. One end of the fixed connecting part is fixed to the partition plate, and the other end of the fixed connecting part is rotatably connected to the fixed base. One end of the movable connecting part is movably connected to the partition plate, and the other end of the fixed connecting part is rotatably connected to the fixed base.

[0007] Optionally, the connecting member includes a connecting rod, a torsion spring, and a slider. The slider is threaded onto the lead screw, and the other end of the connecting rod is connected to the slider via the torsion spring. The torsion spring is used to ensure that the connecting rod always has a tendency to return to its initial position. The connecting rod of the fixed connector is a fixed connecting rod, and the connecting rod of the movable connector is a movable connecting rod. The end of the fixed connecting rod that is not connected to the slider is fixedly connected to the partition, and the end of the movable connecting rod that is not connected to the slider abuts against both sides of the partition and is slidably connected to the partition.

[0008] Optionally, a fixed connecting seat is provided at one end of the fixed connecting rod, and a fixed connecting groove is provided on the fixed connecting seat. The partition is inserted into the fixed connecting groove and fixed to the fixed connecting seat. One end of the movable connecting rod is provided with a movable connecting seat, and the movable connecting seat is provided with a through movable connecting groove. The partition is slidably inserted into the movable connecting groove, and the movable connecting groove is used to enable the partition to slide and connect with the movable connecting seat.

[0009] Optionally, one of the slider and the housing is provided with a guide protrusion protruding in the vertical or front-back direction, and the other is provided with a guide groove. The guide protrusion is slidably inserted into the guide groove in the left-right direction, and the guide groove extends along the axial direction of the lead screw.

[0010] Optionally, two fixing seats are provided, each fixing seat has a rotating hole, one end of the lead screw is rotatably inserted into the rotating hole of one fixing seat, and the other end of the lead screw is rotatably inserted into the rotating hole of the other fixing seat and connected to the output end of the driving member, and the driving member is fixed on the fixing seat.

[0011] Optionally, a fixed connector of one of the driving structures is connected to the lower end of the partition, and a movable connector of the other driving structure is movably connected to the upper end of the partition. The lead screw of one driving structure rotates forward about its own axis, and the lead screw of the other driving structure rotates in the opposite direction about its own axis, so that the upper end and the lower end of the partition move in opposite directions to a predetermined position in the left and right directions. The angle between the partition and the vertical direction is α, where 5°≤α≤10°.

[0012] Optionally, the outer plate is provided with a first air inlet and a second air inlet at intervals in the vertical direction, and the inner plate is provided with a first air outlet and a second air outlet at intervals in the vertical direction. The first air inlet and the first air outlet are located at the upper end of the air-cooled partition, and the second air inlet and the second air outlet are located at the lower end of the air-cooled partition.

[0013] Optionally, multiple first air inlets are provided at intervals along the front-to-back direction; and / or, The second air inlet is provided in multiple portions at intervals along the front-to-back direction; and / or, The first air outlet is provided with multiple outlets spaced apart along the front-to-back direction; and / or, Multiple second air outlets are spaced apart along the front-to-back direction.

[0014] Optionally, the ventilation holes include a first ventilation hole and a second ventilation hole spaced apart in the vertical direction, wherein the minimum vertical distance between the first ventilation hole and the second ventilation hole is d, and 30mm≥d≥10mm.

[0015] The beneficial effects of the present invention include at least the following: This invention provides a gas water heater, including a burner assembly. The burner assembly includes an inner enclosure plate and an outer enclosure plate. The inner enclosure plate forms a combustion chamber, and the outer enclosure plate is located outside the inner enclosure plate. An air-cooled partition is formed between the outer enclosure plate and the inner enclosure plate. The gas water heater also includes a partition plate and a drive structure. The partition plate is disposed within the air-cooled partition to divide the air-cooled partition into an inner channel and an outer channel. A ventilation hole is provided in the middle section of the partition plate in the vertical direction, so that the air-cooled partition is divided into an upper air chamber with a first air-cooled flow channel passing through the ventilation hole and a lower air chamber with a second air-cooled flow channel. The lower air chamber is located below the upper air chamber in the vertical direction. Two drive structures are arranged at intervals in the vertical direction. One drive structure is connected to the upper end of the partition plate to drive the upper end of the partition plate to move in the left-right direction, and the other drive structure is connected to the lower end of the partition plate to drive the lower end of the partition plate to move in the left-right direction.

[0016] In practical implementation, if the two driving structures in the vertical direction drive the upper and lower ends of the baffle to move in the same direction, the baffle remains vertical. The flow area of ​​the inner and outer channels separated by the baffle changes; the outer channel connects to the external environment, while the inner channel connects to the combustion chamber. When the flow area of ​​the outer channel decreases, the airflow to the outer channel decreases, resulting in a decrease in the airflow through the air-cooled baffle. This reduces the heat exchange efficiency between the air-cooled baffle and the combustion chamber. For gas water heaters operating at low temperatures and low loads, this helps maintain flame stability within the combustion chamber and prevents rapid heat loss. If the two driving structures in the vertical direction drive the upper and lower ends of the baffle to move in opposite directions, the baffle will be set at an angle to the vertical direction. The shape of the inner and outer channels separated by the baffle changes; the outer channel remains connected to the external environment, while the inner channel remains connected to the combustion chamber. When the cross-sectional area of ​​the upper end of the outer channel of the upper air chamber increases, the cross-sectional area of ​​the lower end of the outer channel of the lower air chamber decreases, that is, the outer channel becomes trapezoidal. At this time, the airflow into the outer channel of the upper air chamber increases, which leads to an increase in the airflow into the upper air chamber and improves the heat exchange efficiency between the upper air chamber and the combustion chamber. Meanwhile, the airflow into the outer channel of the lower air chamber decreases, and the heat exchange efficiency between the lower air chamber and the combustion chamber decreases. The combustion chamber and the air-cooled partition are horizontally aligned, with the upper air chamber corresponding to the upper half of the combustion chamber and the lower air chamber corresponding to the lower half. This is particularly relevant when the gas water heater is under high temperature and heavy load conditions. Since the outer flame of the flame is mostly located in the upper half of the chamber, its temperature is high. Furthermore, a heat exchanger is installed at the top of the upper half of the chamber, and high-temperature flue gas accumulates below the heat exchanger. All of these factors contribute to the fact that the average temperature of the upper half of the chamber is higher than that of the lower half. Therefore, by reducing the heat exchange to the lower half of the chamber and increasing the heat exchange to the upper half, the temperature of the upper half of the chamber can be prevented from becoming too high. This ensures a more uniform temperature on the outside of the combustion chamber and extends the service life of the gas water heater. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the burner assembly provided in an embodiment of the present invention; Figure 2 This is a partial cross-sectional view of the burner assembly provided in an embodiment of the present invention from a first perspective; Figure 3 yes Figure 2 Enlarged view of point A in the middle; Figure 4 yes Figure 2 Enlarged view of point B in the middle; Figure 5 yes Figure 2 Enlarged view of point C in the middle; Figure 6 This is a partial cross-sectional view of the burner assembly provided in an embodiment of the present invention from a second perspective; Figure 7 This is a schematic diagram of the partition and drive structure provided in an embodiment of the present invention; Figure 8 This is a partial structural schematic diagram of the gas water heater provided in an embodiment of the present invention.

[0018] Figure Labels 1. Outer panel; 11. First air inlet; 12. Second air inlet; 2. Inner panel; 21. First air outlet; 22. Second air outlet; 3. Partition; 31. First ventilation hole; 32. Second ventilation hole; 4. Drive structure; 41. Drive component; 42. Lead screw; 43. Connector; 431. Slider; 4311. Guide protrusion; 432. Connecting rod; 44. Fixing base; 441. Support leg; 5. Burner; 10. Air-cooled partition; 101. Outer channel; 102. Inner channel; 103. Upper air chamber; 104. Lower air chamber; 20. Combustion chamber; 100. Burner assembly; 200. Housing; 300. Main control board assembly. Detailed Implementation

[0019] To make the technical problems solved by the present invention, the technical solutions adopted, and the technical effects achieved clearer, the technical solutions of the present invention will be further described below in conjunction with the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are merely for explaining the present invention and are not intended to limit the present invention. Furthermore, it should be noted that, for ease of description, only the parts related to the present invention are shown in the accompanying drawings, not all of them.

[0020] In the description of this invention, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0021] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0022] In the description of this embodiment, the terms "upper," "lower," "left," and "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the present invention. In addition, the terms "first" and "second" are used only for distinction in description and have no special meaning.

[0023] The technical solution of the present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0024] like Figures 1 to 8 As shown, this embodiment provides a gas water heater, including a burner assembly 100. The burner assembly 100 includes an inner enclosure plate 2 and an outer enclosure plate 1. The inner enclosure plate 2 forms a combustion chamber 20, and the outer enclosure plate 1 is located outside the inner enclosure plate 2. An air-cooled partition 10 is formed between the outer enclosure plate 1 and the inner enclosure plate 2. Gas in the environment can flow into the combustion chamber 20 through the air-cooled partition 10, which not only helps the combustion in the combustion chamber 20, but also cools the cavity wall of the combustion chamber 20, so as to prevent the components around the combustion chamber 20 from being damaged due to prolonged exposure to high temperature. The gas water heater also includes a partition 3 and a drive structure 4. The partition 3 is disposed within the air-cooled partition 10 to divide the air-cooled partition 10 into an inner channel 102 and an outer channel 101. The partition 3 has ventilation holes in the middle section in the vertical direction, so that the air-cooled partition 10 is divided into an upper air chamber 103 with a first air-cooling flow channel passing through the ventilation holes and a lower air chamber 104 with a second air-cooling flow channel. The lower air chamber 104 is located below the upper air chamber 103 in the vertical direction. In this embodiment, the outer channel 101 is located between the outer perimeter plate 1 and the partition 3, and the inner channel 102 is located between the partition 3 and the inner perimeter plate 2. The outer perimeter plate 1 has a first air inlet 11 and a second air inlet 12 spaced apart in the vertical direction, and the inner perimeter plate 2 has a first air outlet 21 and a second air outlet 22 spaced apart in the vertical direction. The partition 3 has a first ventilation hole 31 and a second ventilation hole 32 spaced apart in the middle section in the vertical direction. Therefore, the first air inlet 11, the outer channel 101, the first ventilation hole 31, the inner channel 102, and the first air outlet 21 are sequentially connected to form a first air-cooling channel, which is formed in the upper air chamber 103. The second air inlet 12, the outer channel 101, the second ventilation hole 32, and the second air outlet 22 are sequentially connected to form a second air-cooling channel, which is formed in the lower air chamber 104. In this embodiment, the vertical direction is... Figure 1 The Z direction in the equation.

[0025] Two drive structures 4 are spaced apart along the vertical direction. One drive structure 4 is connected to the upper end of the partition 3 to drive the upper end of the partition 3 to move in the left-right direction, and the other drive structure 4 is connected to the lower end of the partition 3 to drive the lower end of the partition 3 to move in the left-right direction. In specific implementation, if the two drive structures 4 in the vertical direction drive the upper and lower ends of the partition 3 to move in the same direction, the partition 3 will remain vertical in the vertical direction. The flow area of ​​the inner channel 102 and the outer channel 101 separated by the partition 3 will change. The outer channel 101 will be connected to the external environment, and the inner channel 102 will be connected to the combustion chamber 20. When the flow area of ​​the outer channel 101 decreases, the airflow to the outer channel 101 decreases, which in turn reduces the airflow through the air-cooled partition 10. This reduces the heat exchange efficiency between the air-cooled partition 10 and the combustion chamber 20. For gas water heaters operating at low temperature and low load, this can maintain flame stability in the combustion chamber 20 and prevent rapid heat loss. If the two driving structures 4 in the vertical direction drive the upper and lower ends of the partition 3 to move in opposite directions, the partition 3 will be set at an angle to the vertical direction. The shape of the inner channel 102 and the outer channel 101 separated by the partition 3 will change. The outer channel 101 will still be connected to the external environment, and the inner channel 102 will still be connected to the combustion chamber 20. When the flow cross-sectional area of ​​the upper end of the outer channel 101 of the upper air chamber 103 increases, the flow cross-sectional area of ​​the lower end of the outer channel 101 of the lower air chamber 104 will decrease, that is, the outer channel 101 will be trapezoidal. At this time, the airflow into the outer channel 101 of the upper air chamber 103 will increase, which will lead to an increase in the airflow into the upper air chamber 103 and improve the heat exchange efficiency between the upper air chamber 103 and the combustion chamber 20. Meanwhile, the airflow into the outer channel 101 of the lower air chamber 104 will decrease, and the heat exchange efficiency between the lower air chamber 104 and the combustion chamber 20 will decrease. In this embodiment, the combustion chamber 20 and the air-cooled partition 10 are horizontally aligned. The upper air chamber 103 corresponds to the upper half of the combustion chamber 20, and the lower air chamber 104 corresponds to the lower half of the combustion chamber 20. This is particularly relevant when the gas water heater is under high temperature and heavy load conditions. Since the outer flame of the flame is mostly located in the upper half of the chamber, the outer flame temperature is high. Furthermore, a heat exchanger is installed at the top of the upper half of the chamber, and high-temperature flue gas accumulates below the heat exchanger. All of these factors contribute to the fact that the average temperature of the upper half of the chamber is higher than that of the lower half of the chamber. Therefore, by reducing the heat exchange to the lower half of the chamber, the heat exchange to the upper half of the chamber can be increased, thereby preventing the upper half of the chamber from becoming too hot. This ensures that the temperature on the outside of the combustion chamber 20 is more uniform, thus extending the service life of the gas water heater. In this embodiment, the gas water heater also includes a main control board assembly 300. The burner assembly 100 is connected to the main control board assembly 300 by signal. The main control board assembly 300 controls the drive structure 4 to move the partition 3 according to the working condition load of the gas water heater. When the gas water heater is in standard working condition, the partition 3 is located between the inner enclosure 2 and the outer enclosure 1, and the air volume of the upper air chamber 103 and the lower air chamber 104 is evenly distributed.This gas water heater uses an adjustable baffle 3 within the air-cooled partition 10 to dynamically adjust the airflow in the upper air chamber 103 and lower air chamber 104, thereby adapting to different combustion loads and improving the overall operational stability and safety. In this embodiment, the left-right direction is... Figure 1 The X direction in the equation.

[0026] Optionally, such as Figure 1 and Figure 7 As shown, the gas water heater also includes a housing 200, which has an inner cavity. The burner assembly 100 is located in the inner cavity. The drive structure 4 includes a drive member 41, a lead screw 42, a connector 43, and a fixed seat 44. The fixed seat 44 is connected to the housing 200, and the lead screw 42 is rotatably connected to the fixed seat 44. The drive member 41 drives the lead screw 42 to rotate. The connector 43 is threadedly fitted onto the lead screw 42. The housing 200 restricts the axial movement of the connector 43 along the lead screw 42. In this embodiment, the drive structure of the lead screw 42 and the connector 43 drives the partition 3 to move when the output shaft of the drive member 41 rotates. The direction of movement of the partition 3 is consistent with the extension direction of the lead screw 42. The output shaft of the drive member 41 rotates around the axial direction of the lead screw 42, thereby driving the lead screw 42 to rotate around its own axial direction. The connector 43 is provided with a through hole, and the inner wall of the through hole is provided with an internal thread. The outer circumferential surface of the lead screw 42 is provided with an external thread that matches it. Therefore, when the connector 43 is slidably connected to the outer casing 200, the rotation of the lead screw 42 around its own axis can drive the connector 43 to move along the axis of the lead screw 42, thereby causing the partition 3 and the connector 43 to move synchronously. Further, one of the connectors 43 in the two drive structures 4 is a fixed connector, and the other is a movable connector. One end of the fixed connector is fixed to the partition 3, and the other end is rotatably connected to the fixed seat 44. One end of the movable connector is movably connected to the partition 3, and the other end is rotatably connected to the fixed seat 44. In specific implementation, if the lead screws 42 in the two drive structures 4 connected to the upper and lower ends of the partition 3 rotate in different directions, i.e., the upper and lower ends of the partition 3 move in opposite directions to achieve the rotation of the partition 3, then to avoid the connector 43 interfering with the rotation of the partition 3, both the fixed connector and the movable connector are rotatably connected to the fixed seat 44. When the upper and lower ends of the partition 3 move in opposite directions to make the partition 3 rotate, the partition 3 will drive the fixed connector and the movable connector to rotate relative to the fixed seat 44. Secondly, the fixed connector is fixedly connected to the partition 3, thereby supporting the partition 3 so that the partition 3 can be located within the air-cooled partition 10 without falling off. In addition, when the partition 3 rotates, the relative position of the partition 3 and the driving structure 4 in the vertical direction changes. The movable connector is movably connected to the partition 3, which ensures that the relative position of the partition 3 relative to one of the driving structures 4 in the vertical direction can change, so as to prevent the two connectors 43 from pulling on the partition 3 when they move in opposite directions in the left and right directions, damaging the partition 3, or the partition 3 from obstructing the movement of the connectors 43.

[0027] Optionally, the connecting member 43 includes a connecting rod 432, a torsion spring, and a slider 431. The slider 431 is threaded onto the lead screw 42. The other end of the connecting rod 432 is connected to the slider 431 via the torsion spring. The torsion spring is used to ensure that the connecting rod 432 always has a tendency to return to its initial position. In a specific implementation, the torsion spring is sleeved on the connecting rod 432, with one end connected to the connecting rod 432 and the other end connected to the slider 431. When the connecting rods 432 at the upper and lower ends of the partition 3 move in the same direction, the relative position of the connecting rod 432 and the slider 431 remains unchanged. However, when the connecting rods 432 at the upper and lower ends of the partition 3 move in opposite directions, the connecting rod 432 is simultaneously subjected to forces from the partition 3 and the slider 431 in different directions. This causes the connecting rod 432 to compress the torsion spring and rotate, thus satisfying the rotation requirement of the partition 3.

[0028] Optionally, a fixed connecting seat is provided at one end of the fixed connecting rod, and a fixed connecting groove is provided on the fixed connecting seat. The partition 3 is inserted into the fixed connecting groove and fixed to the fixed connecting seat. A movable connecting seat is provided at one end of the movable connecting rod, and a through movable connecting groove is provided on the movable connecting seat. The partition 3 is slidably inserted into the movable connecting groove, which allows the partition 3 to slide and connect with the movable connecting seat. In a specific implementation, the fixed connecting rod can be connected to the lower end of the partition 3, and the movable connecting rod can be connected to the upper end of the partition 3. When the partition 3 is in the vertical direction, the partition 3 extends beyond the movable connecting seat to prevent the upper end of the partition 3 from disengaging from the movable connecting groove when the partition 3 rotates.

[0029] Optionally, one of the slider 431 and the housing 200 is provided with a guide protrusion 4311 protruding in the vertical or front-back direction, and the other is provided with a guide groove. The guide protrusion 4311 is slidably inserted into the guide groove in the left-right direction, and the guide groove extends along the axial direction of the lead screw 42. In this embodiment, the slider 431 is provided with a guide protrusion 4311 protruding in the vertical direction, while the housing 200 may be provided with a pair of limiting pieces. The area between the two limiting pieces is the formed guide groove, and the guide protrusion 4311 is located between the two limiting pieces. Figure 7 As shown, the guide protrusion 4311 protrudes from the main structure of the slider 431 to form limiting grooves on both sides of the guide protrusion 4311 in the front-back direction. The limiting pieces are located on both sides of the guide protrusion 4311 and are inserted into the limiting grooves. The length of the limiting groove extending along the axial direction of the lead screw 42 limits the distance that the slider 431 can slide relative to the outer shell 200 in the left-right direction.

[0030] In this embodiment, two fixing seats 44 are provided, each with a rotating hole. One end of the lead screw 42 rotates through the rotating hole of one fixing seat 44, while the other end rotates through the rotating hole of the other fixing seat 44 and connects to the output end of the drive component 41. The two fixing seats 44 provide support for both ends of the lead screw 42, preventing deformation during prolonged stress. The inner wall of the rotating hole has an internal thread that matches the external thread on the lead screw 42, allowing the lead screw 42 to rotate within the rotating hole.

[0031] Optionally, a support leg 441 is provided on the mounting base 44 for connecting to the housing 200. In specific implementations, the support leg 441 and the housing 200 can be connected by welding or screws to fix the mounting base 44 to the housing 200.

[0032] In other embodiments, the drive structure 4 may include a push rod motor and a hinge. The hinge is located on the side of the partition 3 near the push rod motor. The output end of the push rod motor is connected to the hinge. When both push rod motors of the drive structure 4 extend further, they push the partition 3 to move. When one of the push rod motors of the drive structure 4 extends further and the other push rod motor retracts, it pushes the partition 3 to rotate. The hinge allows the partition 3 to have a certain degree of vertical deviation, thus giving the partition 3 a certain degree of rotational freedom. The partition 3 is located inside the air-cooled partition 10. The rotation angle of the partition 3 is small, and the degree of freedom of the hinge is sufficient to meet the rotation requirements of the partition 3.

[0033] In this embodiment, a fixed connector of one drive structure 4 is connected to the lower end of the partition 3, and a movable connector of another drive structure 4 is movably connected to the upper end of the partition 3. The lead screw 42 of one drive structure 4 rotates forward around its own axis, and the lead screw 42 of the other drive structure 4 rotates in the opposite direction around its own axis, so that the upper end and the lower end of the partition 3 move in opposite directions to a predetermined position in the left and right directions. The angle between the partition 3 and the vertical direction is α, where 5°≤α≤10°.

[0034] Furthermore, such as Figures 2 to 6As shown, the first air inlet 11 and the first air outlet 21 are located at the upper end of the air-cooled partition 10, and the second air inlet 12 and the second air outlet 22 are located at the lower end of the air-cooled partition 10. Part of the ambient air flows into the outer channel 101 through the first air inlet 11 at the upper end of the upper air chamber 103, and then flows downward to the first ventilation hole 31 to enter the inner channel 102. The air then flows upward in the inner channel 102 to the first air outlet 21 to enter the combustion chamber 20. Similarly, part of the ambient air flows into the outer channel 101 through the second air inlet 12 at the lower end of the lower air chamber 104, and then flows upward to the second ventilation hole 32 to enter the inner channel 102. The air then flows downward in the inner channel 102 to the second air outlet 22 to enter the combustion chamber 20. Because the output end of the first air-cooled flow channel is located near the top of the combustion chamber 20, and the output end of the second air-cooled flow channel is located near the bottom of the combustion chamber 20, the gas from the first and second air-cooled flow channels can flow through as much of the inner channel 102 and outer channel 101 as possible, thus dissipating heat from all parts of the inner shroud 2. Secondly, since the burner 5 is located at the bottom of the combustion chamber 20, and the output end of the second air-cooled flow channel is located near the bottom of the combustion chamber 20, the gas flowing out from the lower air chamber 104 is close to the flame in the combustion chamber 20, which increases airflow around the flame and promotes combustion.

[0035] Optionally, multiple first air inlets 11 are spaced apart along the front-to-back direction, and / or multiple second air inlets 12 are spaced apart along the front-to-back direction. In this embodiment, the front-to-back direction is... Figure 1 in the Y direction.

[0036] Optionally, multiple first air outlets 21 are spaced apart along the front-to-back direction, and / or multiple second air outlets 22 are spaced apart along the front-to-back direction.

[0037] Optionally, the ventilation holes include a first ventilation hole 31 and a second ventilation hole 32 spaced apart in the vertical direction. The minimum vertical distance between the first ventilation hole 31 and the second ventilation hole 32 is d, where 30mm ≥ d ≥ 10mm. The first ventilation hole 31 and the second ventilation hole 32 maintain a predetermined vertical distance. If the minimum vertical distance between the first ventilation hole 31 and the second ventilation hole 32 is less than 10mm, the airflow in the first air-cooling channel and the second air-cooling channel may interfere with each other. If the minimum vertical distance between the first ventilation hole 31 and the second ventilation hole 32 is greater than 30mm, the distance between the first air-cooling channel and the second air-cooling channel may be too large, resulting in no airflow in some areas of the air-cooling partition 10, leading to localized overheating.

[0038] Optionally, a plurality of first ventilation holes 31 are provided at intervals along the front-to-back direction, and / or a plurality of second ventilation holes 32 are provided at intervals along the front-to-back direction.

[0039] The above embodiments merely illustrate the basic principles and characteristics of the present invention. The present invention is not limited to the above embodiments. Various changes and modifications can be made to the present invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A gas water heater, comprising a burner assembly (100), the burner assembly (100) comprising an inner enclosure plate (2) and an outer enclosure plate (1), the inner enclosure plate (2) forming a combustion chamber (20), the outer enclosure plate (1) being located outside the inner enclosure plate (2), and an air-cooled partition (10) forming between the outer enclosure plate (1) and the inner enclosure plate (2), characterized in that, The gas water heater also includes: A partition (3) is disposed inside the air-cooled partition (10) to divide the air-cooled partition (10) into an inner channel (102) and an outer channel (101). The partition (3) has ventilation holes in the middle section in the vertical direction so that the air-cooled partition (10) is divided into an upper air cavity (103) that passes through the ventilation holes and has a first air-cooling flow channel and a lower air cavity (104) that has a second air-cooling flow channel. The lower air cavity (104) is located below the upper air cavity (103) in the vertical direction. The driving structure (4) is provided in two spaced apart along the vertical direction. One driving structure (4) is connected to the upper end of the partition (3) to drive the upper end of the partition (3) to move along the left and right direction, and the other driving structure (4) is connected to the lower end of the partition (3) to drive the lower end of the partition (3) to move along the left and right direction.

2. The gas water heater according to claim 1, characterized in that, The gas water heater also includes a housing (200) having an inner cavity, the burner assembly (100) being located in the inner cavity, the drive structure (4) including a drive member (41), a lead screw (42), a connector (43) and a fixed seat (44), the fixed seat (44) being connected to the housing (200), the lead screw (42) being rotatably connected to the fixed seat (44), the drive member (41) being used to drive the lead screw (42) to rotate, the connector (43) being threadedly fitted onto the lead screw (42), and the housing (200) being used to restrict the connector (43) to move only along the axial direction of the lead screw (42); One of the connecting parts (43) of the two drive structures (4) is a fixed connecting part and the other is a movable connecting part. One end of the fixed connecting part is fixed to the partition (3) and the other end of the fixed connecting part is rotatably connected to the fixed seat (44). One end of the movable connecting part is movably connected to the partition (3) and the other end of the fixed connecting part is rotatably connected to the fixed seat (44).

3. The gas water heater according to claim 2, characterized in that, The connector (43) includes a connecting rod (432), a torsion spring, and a slider (431). The slider (431) is threaded onto the lead screw (42). The other end of the connecting rod (432) is connected to the slider (431) through the torsion spring. The torsion spring is used to ensure that the connecting rod (432) always has a tendency to return to its initial position. The connecting rod (432) of the fixed connector is a fixed connecting rod, and the connecting rod (432) of the movable connector is a movable connecting rod. The end of the fixed connecting rod that is not connected to the slider (431) is fixedly connected to the partition (3), and the end of the movable connecting rod that is not connected to the slider (431) abuts against both sides of the partition (3) and is slidably connected to the partition (3).

4. The gas water heater according to claim 3, characterized in that, A fixed connecting seat is provided at one end of the fixed connecting rod, and a fixed connecting groove is provided on the fixed connecting seat. The partition (3) is inserted into the fixed connecting groove and fixed to the fixed connecting seat. One end of the movable connecting rod is provided with a movable connecting seat, and the movable connecting seat is provided with a through movable connecting groove. The partition (3) is slidably inserted into the movable connecting groove, and the movable connecting groove is used to enable the partition (3) to be slidably connected with the movable connecting seat.

5. The gas water heater according to claim 3, characterized in that, One of the slider (431) and the housing (200) is provided with a guide protrusion (4311) protruding in the vertical or front-back direction, and the other is provided with a guide groove. The guide protrusion (4311) is slidably inserted into the guide groove in the left-right direction, and the guide groove extends along the axial direction of the lead screw (42).

6. The gas water heater according to claim 2, characterized in that, Two fixed seats (44) are provided. A rotating hole is provided on the fixed seat (44). One end of the lead screw (42) is rotatably inserted into the rotating hole of one of the fixed seats (44). The other end of the lead screw (42) is rotatably inserted into the rotating hole of the other fixed seat (44) and connected to the output end of the drive member (41). The drive member (41) is fixed on the fixed seat (44).

7. The gas water heater according to claim 2, characterized in that, One of the fixed connecting parts of the drive structure (4) is connected to the lower end of the partition (3), and the other movable connecting part of the drive structure (4) is movably connected to the upper end of the partition (3). The lead screw (42) of one drive structure (4) rotates in the forward direction around its own axis, and the lead screw (42) of the other drive structure (4) rotates in the reverse direction around its own axis, so that the upper end of the partition (3) and the lower end of the partition (3) move in opposite directions in the left and right directions to a predetermined position. The angle between the partition (3) and the vertical direction is a, 5°≤a≤10°.

8. The gas water heater according to claim 1, characterized in that, The outer plate (1) is provided with a first air inlet (11) and a second air inlet (12) at intervals in the vertical direction, and the inner plate (2) is provided with a first air outlet (21) and a second air outlet (22) at intervals in the vertical direction. The first air inlet (11) and the first air outlet (21) are located at the upper end of the air-cooled partition (10), and the second air inlet (12) and the second air outlet (22) are located at the lower end of the air-cooled partition (10).

9. The gas water heater according to claim 8, characterized in that, The first air inlet (11) is provided with multiple inlets at intervals along the front-to-back direction; and / or, The second air inlet (12) is provided with multiple inlets at intervals along the front-to-back direction; and / or, The first air outlet (21) is provided with multiple outlets spaced apart along the front-to-back direction; and / or, The second air outlet (22) is provided at intervals along the front and rear direction.

10. The gas water heater according to claim 8, characterized in that, The ventilation holes include a first ventilation hole (31) and a second ventilation hole (32) spaced apart in the vertical direction. The minimum vertical distance between the first ventilation hole (31) and the second ventilation hole (32) is d, where 30mm ≥ d ≥ 10mm.

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