Gas distribution device and gas heating device

Abstract

The present invention discloses a gas distribution device and a gas heating device. The gas distribution device includes: a housing having a distribution chamber, an air inlet communicated with the distribution chamber and a plurality of air outlets communicated with the distribution chamber provided on the housing; and a distribution core movably disposed in the distribution chamber for opening or closing the air outlets. The distribution core has a plurality of distribution positions for selectively opening at least one of the air outlets, and different air outlets are opened when the distribution core is at different distribution positions. Thus, by driving the distribution core to move in the distribution chamber, the distribution core can be moved to different distribution positions to open different air outlets, so that the number and position of the opened air outlets can be controlled to achieve the distribution of the gas entering the distribution chamber.

Description

Technical Field

[0001] The present invention relates to the technical field of gas heating, and particularly relates to a gas distribution device and a gas heating device. Background Art

[0002] In the related art, for gas heating devices such as gas water heaters or gas wall-mounted boilers, two, three or even more solenoid valves need to be provided in the gas path to achieve gas distribution, so as to realize segmented combustion control of the burner and make its load ratio meet the requirements.

[0003] However, on the one hand, because the solenoid valve itself has a high cost and sufficient interfaces need to be reserved on the control board, the cost is high; on the other hand, setting more solenoid valves inside the housing will also make the whole machine installation relatively compact, which is not conducive to the miniaturization design of the gas heating device. Summary of the Invention

[0004] The main object of the present invention is to propose a gas distribution device and a gas heating device, aiming to provide a new gas distribution method to realize segmented combustion control of the burner.

[0005] To achieve the above object, the present invention proposes a gas distribution device, including:

[0006] A housing having a distribution cavity, and an air inlet communicating with the distribution cavity and a plurality of air outlets communicating with the distribution cavity are provided on the housing; and

[0007] A distribution core movably disposed in the distribution cavity for opening or closing the air outlets; the distribution core has a plurality of distribution positions for selectively opening at least one of the air outlets, and different air outlets are opened when the distribution core is in different distribution positions.

[0008] The distribution core is rotatably disposed in the distribution cavity so that the distribution core has a plurality of distribution positions.

[0009] Optionally, the plurality of air outlets are spaced apart in the extending direction of the rotation axis of the distribution core;

[0010] The distribution core has a shunt cavity communicating with the air inlet, and a plurality of shunt ports communicating with the shunt cavity are provided on the distribution core. The plurality of shunt ports are spaced apart in the extending direction of the rotation axis of the distribution core, and the plurality of shunt ports are respectively arranged in one-to-one correspondence with the plurality of air outlets;

[0011] The circumferential lengths of at least two of the shunt ports in the rotational direction of the distribution core are unequal, so that when the distribution core rotates to different distribution positions, different shunt ports communicate with corresponding air outlets to open different air outlets.

[0012] Optionally, the circumferential lengths of the multiple shunt ports in the rotational direction of the distribution core gradually increase in the direction of approaching or departing from the air inlet.

[0013] Optionally, one ends of the multiple shunt ports are located at or near the same straight line, and this straight line is parallel to the rotational axis of the distribution core.

[0014] Optionally, the air inlet is arranged on one side of the distribution core, the shunt cavity is arranged at one end of the distribution core close to the air inlet, and an opening is arranged at one end of the shunt cavity close to the air inlet so that the shunt cavity communicates with the air inlet.

[0015] Optionally, the multiple air outlets are spaced apart in the rotational direction of the distribution core;

[0016] The distribution core has a shunt cavity communicating with the air inlet, shunt ports communicating with the shunt cavity are arranged on the distribution core, and the shunt ports are arranged corresponding to the multiple air outlets;

[0017] The circumferential length of the shunt port in the rotational direction of the distribution core is greater than or equal to the circumferential distribution length of the multiple air outlets in the rotational direction of the distribution core, so that when the distribution core rotates to different distribution positions, different numbers of shunt ports communicate with corresponding air outlets to open different numbers of air outlets.

[0018] Optionally, the multiple air outlets are spaced apart in the extending direction of the rotational axis of the distribution core;

[0019] The distribution core has a shunt cavity communicating with the air inlet, and multiple groups of shunt ports are arranged at intervals on the distribution core in the rotational direction of the distribution core, and each group of shunt ports includes at least one shunt port;

[0020] The different groups of shunt ports include different shunt ports corresponding to different air outlets, so that when the distribution core rotates to different distribution positions, different shunt ports communicate with corresponding air outlets to open different air outlets.

[0021] Optionally, the gas distribution device further includes a driving device for driving the distribution core to move in the distribution cavity.

[0022] Optionally, the driving device includes a motor. One end of the housing is provided with an opening communicating with the distribution chamber. The motor is disposed at the opening end of the housing, and an output shaft of the motor is connected to the distribution core for driving the distribution core to rotate; or,

[0023] The driving device includes a motor and a transmission assembly. One end of the housing is provided with an opening communicating with the distribution chamber. The motor is disposed at the opening end of the housing. The transmission assembly includes a first gear disposed on the output shaft of the motor and a second gear connected to the distribution core. The first gear is in meshing transmission connection with the second gear, and the motor drives the distribution core to rotate through the transmission assembly.

[0024] Optionally, a sealing ring and / or grease is provided between the distribution core and the distribution chamber; and / or, the number of the air outlets is greater than or equal to 3.

[0025] Optionally, the distribution core is movably disposed in the distribution chamber so that the distribution core has multiple distribution positions.

[0026] Optionally, the plurality of air outlets are spaced apart in the moving direction of the distribution core so that different air outlets are opened when the distribution core moves to different distribution positions.

[0027] Optionally, the plurality of air outlets are spaced apart in the circumferential direction of the moving track of the distribution core;

[0028] The distribution core has a flow dividing chamber communicating with the air inlet. The distribution core is provided with a plurality of flow dividing ports communicating with the flow dividing chamber. The plurality of flow dividing ports are spaced apart in the circumferential direction of the moving track of the distribution core, and the plurality of flow dividing ports are respectively arranged in one-to-one correspondence with the plurality of air outlets;

[0029] The lengths of at least two of the flow dividing ports in the moving direction of the distribution core are not equal, so that different flow dividing ports communicate with corresponding air outlets when the distribution core moves to different distribution positions to open different air outlets.

[0030] Optionally, the plurality of air outlets are spaced apart in the circumferential direction of the moving track of the distribution core;

[0031] The distribution core has a flow dividing chamber communicating with the air inlet. The distribution core is provided with multiple groups of flow dividing ports at intervals in the moving direction of the distribution core, and each group of the flow dividing ports includes at least one flow dividing port;

[0032] The different groups of flow dividing ports include different flow dividing ports corresponding to different air outlets, so that different flow dividing ports communicate with corresponding air outlets when the distribution core moves to different distribution positions to open different air outlets.

[0033] Optionally, the gas distribution device further includes a driving device for driving the distribution core to move within the distribution cavity.

[0034] Optionally, the driving device includes a cylinder. One end of the housing is provided with an opening communicating with the distribution cavity. The cylinder is disposed at the opening end of the housing, and the output end of the cylinder is connected to the distribution core for driving the distribution core to move; or,

[0035] The driving device includes a motor. One end of the housing is provided with an opening communicating with the distribution cavity. The motor is disposed at the opening end of the housing, and the motor drives the distribution core to move through a lead screw transmission structure.

[0036] The present invention also provides a gas heating device, which includes:

[0037] A burner, the burner including a plurality of burner ports;

[0038] The gas distribution device as described above, each of the air outlets corresponds to and communicates with at least one of the burner ports.

[0039] Optionally, the gas heating device is a gas water heater, or a gas wall-mounted boiler, or a gas cooker.

[0040] In the gas distribution device of the present invention, by driving the distribution core to move within the distribution cavity, the distribution core can be moved to different distribution positions to open different air outlets, so that the number and positions of the opened air outlets can be controlled to achieve the distribution of the gas entering the distribution cavity. Moreover, the gas distribution device of the present invention can avoid using (multiple) solenoid valves, thereby reducing costs and facilitating the miniaturized design of the gas distribution device and the gas heating device.

[0041] In addition, compared with the related art in which the gas is distributed by solenoid valves, the gas distribution method of the gas distribution device of the present invention is more convenient to implement and can more conveniently achieve more combinations of distribution methods. Description of the Drawings

[0042] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on the structures shown in these drawings.

[0043] Figure 1Schematic structural diagram of the first embodiment of the gas distribution device of the present invention; wherein, the distribution core is in the first distribution position;

[0044] Figure 2 It is Figure 1 Schematic structural diagram in which the distribution core of the gas distribution device in [the text] is in the second distribution position;

[0045] Figure 3 It is Figure 1 Schematic structural diagram in which the distribution core of the gas distribution device in [the text] is in the third distribution position;

[0046] Figure 4 It is Figure 1 Schematic structural diagram in which the distribution core of the gas distribution device in [the text] is in the fourth distribution position;

[0047] Figure 5 It is Figure 1 Schematic structural diagram of the distribution core in [the text];

[0048] Figure 6 Schematic structural diagram of the second embodiment of the gas distribution device of the present invention; wherein, the distribution core is in the first distribution position;

[0049] Figure 7 It is Figure 6 Schematic structural diagram in which the distribution core of the gas distribution device in [the text] is in the second distribution position;

[0050] Figure 8 It is Figure 6 Schematic structural diagram in which the distribution core of the gas distribution device in [the text] is in the third distribution position;

[0051] Figure 9 It is Figure 6 Schematic structural diagram in which the distribution core of the gas distribution device in [the text] is in the fourth distribution position;

[0052] Figure 10 It is Figure 6 Schematic structural diagram of the distribution core in [the text];

[0053] Figure 11 Corresponding distribution diagram of the air outlet on the housing and the flow splitting port on the distribution core in the third embodiment of the gas distribution device of the present invention;

[0054] Figure 12 Schematic structural diagram of the fourth embodiment of the gas distribution device of the present invention;

[0055] Figure 13 Schematic structural diagram of the fifth embodiment of the gas distribution device of the present invention;

[0056] Figure 14 Corresponding distribution diagram of the air outlet on the housing and the flow splitting port on the distribution core in the sixth embodiment of the gas distribution device of the present invention;

[0057] Figure 15 This is the corresponding distribution diagram of the air outlet on the housing and the shunt port on the distribution core in the seventh embodiment of the gas distribution device of the present invention;

[0058] Figure 16 This is the schematic structural diagram of the first embodiment of the gas heating device of the present invention;

[0059] Figure 17 This is the schematic structural diagram of the second embodiment of the gas heating device of the present invention;

[0060] Figure 18 This is the schematic structural diagram of the third embodiment of the gas heating device of the present invention.

[0061] Explanation of the reference numerals in the drawings:

[0062] Label Name Label Name 100 Gas distribution device 30 Drive device 10 Housing 31 Motor 11 Air inlet 32 First gear 12 Air outlet 33 Second gear 20 Distribution core 34 Mounting plate 21 Shunt cavity 40 Sealing ring 22 Shunt port 201 Burner 23 Gas storage cavity 1000 Gas heating device

[0063] The realization of the object of the present invention, functional features and advantages will be further described with reference to the embodiments and the accompanying drawings. Detailed implementation manners

[0064] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention.

[0065] It should be noted that if there are descriptions involving "first", "second", etc. in the embodiments of the present invention, the descriptions of "first", "second", etc. are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one such feature.

[0066] In addition, the meaning of "and / or" appearing throughout the text is that it includes three parallel solutions. Taking "A and / or B" as an example, it includes solution A, or solution B, or a solution that satisfies both A and B at the same time.

[0067] The present invention provides a gas distribution device and a gas heating device. Among them, the gas distribution device is used for the gas heating device, and the gas heating device can be, but is not limited to, a gas water heater, a gas wall-mounted boiler, or a gas cooker, etc.

[0068] Specifically, the gas heating device generally includes a burner and a gas distribution device, etc., and the burner includes a plurality of burner ports.

[0069] In an embodiment of the present invention, as Figure 1-15 shown, the gas distribution device 100 includes a housing 10 and a distribution core 20.

[0070] Wherein, the housing 10 has a distribution cavity, and an air inlet 11 communicating with the distribution cavity and a plurality of (i.e., greater than or equal to two, the same hereinafter) air outlets 12 communicating with the distribution cavity are provided on the housing 10. Gas enters the distribution cavity from the air inlet 11 and can flow out from the air outlets 12.

[0071] Wherein, the distribution core 20 is movably arranged in the distribution cavity for opening or closing the air outlets 12; the distribution core 20 has a variety of distribution positions for selectively opening at least one air outlet 12, and different air outlets 12 are opened when the distribution core 20 is in different distribution positions. It should be noted that different air outlets 12 include different positions and / or different numbers of air outlets 12.

[0072] Optionally, the circumferential surface of the distribution core 20 is in sliding fit with the inner wall surface of the distribution cavity to close the air outlets 12. Of course, in other embodiments, other structural forms can also be used to close or open the air outlets 12. For example, a sealing ring convex is provided on the circumferential surface of the distribution core 20, and the outer ring surface of the sealing ring convex is in sliding fit with the inner wall surface of the distribution cavity. It can be understood that the air outlet on the side of the sealing ring convex where the air inlet 11 is located is in an open state, and the air outlets 12 on the side of the sealing ring convex away from the air inlet 11 or covered by the sealing ring convex are in a closed state.

[0073] Wherein, when the gas distribution device 100 is applied to the gas heating device 1000, each air outlet 12 corresponds to at least one burner row 201 in communication. It can be understood that the burner rows 201 corresponding to different air outlets 12 are also different (including different positions and / or different numbers of burner rows 201).

[0074] When the gas distribution device 100 works, by driving the distribution core 20 to move in the distribution cavity, the distribution core 20 can be moved to one of the distribution positions. Gas enters the distribution cavity from the air inlet 11 and flows out from the opened air outlet 12, and then flows to the burner row 201 corresponding to the opened air outlet 12 to achieve gas distribution; when needed, the distribution core 20 can be driven to move to another distribution position to achieve re-distribution of gas.

[0075] The gas distribution device 100 of the present invention can move the distribution core 20 in the distribution cavity, so that the distribution core 20 can move to different distribution positions to open different gas outlets 12, thereby controlling the number and positions of the opened gas outlets 12 to achieve the distribution of the gas entering the distribution cavity. Moreover, the gas distribution device 100 of the present invention can avoid using (multiple) solenoid valves, thereby reducing costs and facilitating the miniaturized design of the gas distribution device 100 and the gas heating device 1000.

[0076] In addition, compared with the method of distributing gas by solenoid valves in the related art, the method of distributing gas by the gas distribution device 100 of the present invention is more convenient to implement and can more conveniently achieve more combinations of distribution methods.

[0077] Furthermore, as Figure 1-4 shown in FIGS. 12 and 13, the gas distribution device 100 further includes a driving device 30 for driving the distribution core 20 to move in the distribution cavity. In this way, the automatic driving of the distribution core 20 to move can be achieved.

[0078] Optionally, the number of the gas outlets 12 is greater than or equal to 3. In this way, it is convenient to form more combinations of distribution methods to meet the requirements of the gas heating device 1000 for the load ratio. In the following embodiments of the present invention, the case where the number of the gas outlets 12 is 4 is taken as an example for illustration, but this does not limit the present invention.

[0079] In the present invention, the shapes of the housing 10 and the distribution core 20 are not limited. However, for the convenience of description and manufacturing, in the following embodiments of the present invention, the case where the housing 10 is cylindrical and the distribution core 20 is columnar is taken as an example for illustration, but this does not limit the present invention.

[0080] In a specific embodiment, there are many forms of movement of the distribution core 20 in the distribution cavity, such as rotation or movement, etc., which will be described by examples respectively below.

[0081] In some embodiments, as Figure 1-4 shown in FIGS. 6-9, the distribution core 20 is rotatably disposed in the distribution cavity so that the distribution core 20 has multiple distribution positions. In this way, it is convenient to reduce the size of the gas distribution device 100 in the extending direction of the rotation axis of the distribution core 20, or to reduce the movement space required by the gas distribution device 100 in the extending direction of the rotation axis of the distribution core 20.

[0082] In the first embodiment of the present invention, as Figure 1-4 shown, a plurality of the gas outlets 12 are spaced apart in the extending direction of the rotation axis of the distribution core 20.

[0083] As Figure 1-5As shown, the distribution core 20 has a flow - dividing cavity 21 communicating with the air inlet 11. A plurality of flow - dividing ports 22 communicating with the flow - dividing cavity 21 are provided on the distribution core 20. The plurality of flow - dividing ports 22 are spaced apart in the extending direction of the rotation axis of the distribution core 20. The plurality of flow - dividing ports 22 are respectively arranged in one - to - one correspondence with the plurality of air outlet ports 12. Among them, the flow - dividing ports 22 are provided on the side wall of the flow - dividing cavity 21. In this way, by driving the distribution core 20 to rotate, the correspondingly arranged flow - dividing port 22 can be communicated with the air outlet port 12 to open the air outlet port 12; or, by driving the distribution core 20 to rotate, the correspondingly arranged flow - dividing port 22 can be misaligned with the air outlet port 12 to close the air outlet port 12.

[0084] As Figure 4 and 5 shown, the circumferential lengths of at least two of the flow - dividing ports 22 in the rotation direction of the distribution core 20 are not equal, so that when the distribution core 20 rotates to different distribution positions, different flow - dividing ports 22 are communicated with the corresponding air outlet ports 12 to open different air outlet ports 12. In this way, the number and position of the opened air outlet ports 12 can be controlled to realize the distribution of the gas entering the distribution cavity.

[0085] In the first embodiment of the present invention, further, as Figure 4 and 5 shown, the air inlet 11 is provided on one side of the plurality of air outlet ports 12. The circumferential lengths of the plurality of flow - dividing ports 22 in the rotation direction of the distribution core 20 gradually increase in the direction of approaching or departing from the air inlet 11. In this way, at different distribution positions of the distribution core 20, different numbers of flow - dividing ports 22 can be communicated with the corresponding air outlet ports 12 to open different numbers of air outlet ports 12.

[0086] In the first embodiment of the present invention, further, as Figure 4 and 5 shown, one ends of the plurality of flow - dividing ports 22 are located at or close to the same straight line, and this straight line is parallel to the rotation axis of the distribution core 20. In this way, when the distribution core 20 rotates in a certain direction (such as the counter - clockwise direction or the clockwise direction), more air outlet ports can be gradually opened, so as to simplify the control of the gas distribution device 100.

[0087] In the first embodiment of the present invention, further, as Figure 1-4 shown, the air inlet 11 is provided on one side of the distribution core 20. The flow - dividing cavity 21 is provided at one end of the distribution core 20 close to the air inlet 11. An opening is provided at one end of the flow - dividing cavity 21 close to the air inlet 11 so that the flow - dividing cavity 21 is communicated with the air inlet 11. In this way, the opening and closing of the air inlet 11 can be avoided from being affected when the distribution core 20 rotates at each distribution position.

[0088] Of course, the air inlet 11 can also be arranged at other positions. For example, the air inlet 11 can be arranged corresponding to the shunt cavity 21, and a communication port is provided on the distribution core 20 corresponding to the air inlet 11. One of the communication port or the air inlet 11 extends in the rotation direction of the distribution core 20, so that when the distribution core 20 is in any distribution position, the air inlet 11 and the communication port are always in communication.

[0089] In the first embodiment of the present invention, optionally, as Figure 1-4 shown, the number of the air outlets 12 is four, and they are A, B, C, and D in sequence in the direction away from the air inlet 11; four shunt ports 22 are correspondingly arranged, and their circumferential lengths in the direction close to the air inlet 11 increase in sequence.

[0090] As Figure 1-4 shown, the distribution core 20 has four distribution positions. In the first distribution position, the air inlet 11A communicates with its corresponding shunt port 22, that is, the air inlet 11A is opened; in the second distribution position, both the air inlets 11A and B communicate with their corresponding shunt ports 22, that is, the air inlets 11A and B are opened; in the third distribution position, the air inlets 11A, B, and C all communicate with their corresponding shunt ports 22, that is, the air inlets 11A, B, and C are opened; in the fourth distribution position, the air inlets 11A, B, C, and D all communicate with their corresponding shunt ports 22, that is, the air inlets 11A, B, C, and D are opened.

[0091] In the second embodiment of the present invention, as Figure 6-9 shown, a plurality of the air outlets 12 are distributed at intervals in the rotation direction of the distribution core 20.

[0092] As Figure 6-10 shown, the distribution core 20 has a shunt cavity 21 communicating with the air inlet 11. The distribution core 20 is provided with shunt ports 22 communicating with the shunt cavity 21, and the shunt ports 22 are correspondingly arranged for a plurality of the air outlets 12. Among them, the shunt ports 22 are arranged on the side wall of the shunt cavity 21.

[0093] As Figure 9 shown, the circumferential length of the shunt ports 22 in the rotation direction of the distribution core 20 is greater than or equal to the circumferential distribution length of a plurality of the air outlets 12 in the rotation direction of the distribution core 20, so that when the distribution core 20 rotates to different distribution positions, different numbers of the shunt ports 22 communicate with the corresponding air outlets 12 to open different numbers of the air outlets 12. In this way, by driving the distribution core 20 to rotate, the number of the opened air outlets 12 can be controlled to realize the distribution of the gas entering the distribution cavity.

[0094] In the second embodiment of the present invention, further, the air inlet 11 is provided on one side of the plurality of air outlets 12.

[0095] In the second embodiment of the present invention, the setting manner of the air inlet 11 may refer to the setting manner of the air inlet 11 in the first embodiment of the present invention, and will not be elaborated here.

[0096] In the second embodiment of the present invention, optionally, as Figure 6-9 shown, the number of the air outlets 12 is four, and they are sequentially A, B, C, and D in the direction away from the air inlet 11; the shunt port 22 extends in the rotation direction of the distribution core 20.

[0097] As Figure 6-9 shown, the distribution core 20 has four distribution positions. In the first distribution position, the air inlet 11A is communicated with the shunt port 22, that is, the air inlet 11A is opened; in the second distribution position, both the air inlets 11A and B are communicated with the shunt port 22, that is, the air inlets 11A and B are opened; in the third distribution position, the air inlets 11A, B, and C are all communicated with the shunt port 22, that is, the air inlets 11A, B, and C are opened; in the fourth distribution position, the air inlets 11A, B, C, and D are all communicated with the shunt port 22, that is, the air inlets 11A, B, C, and D are opened.

[0098] In the third embodiment of the present invention, as Figure 11 shown, the plurality of air outlets 12 are spaced apart in the extending direction of the rotation axis of the distribution core 20.

[0099] The distribution core 20 has a shunt cavity 21 communicated with the air inlet 11. The distribution core 20 is provided with a plurality of groups of shunt ports at intervals in the rotation direction of the distribution core 20. Each group of the shunt ports includes at least one shunt port 22. Among them, the shunt port 22 is provided on the side wall of the shunt cavity 21.

[0100] The different groups of shunt ports include different shunt ports 22 corresponding to different air outlets 12, so that when the distribution core 20 rotates to different distribution positions, different shunt ports 22 are communicated with the corresponding air outlets 12 to open different air outlets 12. That is to say, the different groups of shunt ports include shunt ports 22 with different numbers and / or different positions.

[0101] In this way, by designing the distribution of the shunt ports 22, the rotation of the distribution can be driven to open different numbers and / or different positions of the air outlets 12, so as to control the number and position of the opened air outlets 12 and realize the distribution of the gas entering the distribution cavity.

[0102] In the third embodiment of the present invention, further, the air inlet 11 is provided on one side of the plurality of air outlets 12.

[0103] In the third embodiment of the present invention, the setting manner of the air inlet 11 may refer to the setting manner of the air inlet 11 in the first embodiment of the present invention, and will not be described in detail here.

[0104] In the third embodiment of the present invention, as Figure 11 shown, the number of the air outlets 12 is four, and they are A, B, C, and D in sequence in the direction away from the air inlet 11.

[0105] The number of groups of the shunt ports 22 is 15 groups. Among them, the first to fourth groups of shunt ports each have one shunt port 22, and respectively correspond to the air outlets 12A, B, C, and D; the fifth to tenth groups of shunt ports each have two shunt ports 22, and respectively correspond to two of the air outlets 12 in sequence; the eleventh to fourteenth groups of shunt ports each have three shunt ports 22, and respectively correspond to three of the air outlets 12 in sequence; the fifteenth group of shunt ports has four shunt ports 22, and respectively correspond to the four air outlets 12.

[0106] It should be noted that in actual design, the appropriate number of groups of shunt ports 22 can be selected according to needs. For example, the first, fifth, eleventh, and fourteenth groups of shunt ports in Figure 11 can be provided on the distribution core 20; or, the first, sixth, thirteenth, and fourteenth groups of shunt ports in Figure 11 can be provided on the distribution core 20; or, the first, fifth, eighth, eleventh, and fourteenth groups of shunt ports in Figure 11 can be provided on the distribution core 20..

[0107] In this part of the embodiments of the present invention (i.e., the embodiments in which the distribution core 20 is rotatably arranged in the distribution cavity), a sealing ring 40 and / or grease is provided between the distribution core 20 and the distribution cavity. Among them, the sealing ring 40 and / or grease is arranged between the circumferential surface and the inner wall surface of the distribution cavity. In this way, the sealed connection between the distribution core 20 and the housing 10 can be realized to prevent gas leakage.

[0108] In this part of the embodiments of the present invention (i.e., the embodiments in which the distribution core 20 is rotatably arranged in the distribution cavity), one end of the housing 10 is provided with an opening communicating with the distribution cavity, and the distribution core 20 extends into the distribution cavity from this opening. In this way, the installation process of the distribution core 20 can be simplified.

[0109] In this partial embodiment of the present invention (i.e., the embodiment in which the dispensing core 20 is rotatably disposed in the dispensing cavity), the dispensing core 20 can be driven to rotate either by the motor 31 or by other power components (such as by a cylinder or a hydraulic cylinder and a gear-rack transmission structure to drive the dispensing core 20 to rotate). When the motor 31 is used to drive the dispensing core 20 to rotate, the motor 31 can directly drive the dispensing core 20 to rotate, or can drive the dispensing core 20 to rotate through a transmission component.

[0110] In the first embodiment of the present invention, as Figure 1-4 shown, the driving device 30 includes a motor 31 and a transmission component. The motor 31 is disposed at the open end of the housing 10. The transmission component includes a first gear 32 disposed on the output shaft of the motor 31 and a second gear 33 connected to the dispensing core 20. The first gear 32 is meshed and drivingly connected to the second gear 33. The motor 31 drives the dispensing core 20 to rotate through the transmission component.

[0111] In the first embodiment of the present invention, optionally, as Figure 1-4 shown, the motor 31 is mounted on the open end of the housing 10 through a mounting plate 34. Among them, the motor 31 is disposed on one side of the housing 10. One end of the mounting plate 34 is connected to the open end of the housing 10, and the motor 31 is mounted on the other end of the mounting plate 34.

[0112] Optionally, the mounting plate 34 is a bent plate to facilitate the installation of the motor 31, the first gear 32, and the second gear 33.

[0113] In the first embodiment of the present invention, optionally, the motor 31 is a stepper motor 31 or a servo motor 31.

[0114] In the fourth embodiment of the present invention, as Figure 12 shown, the driving device 30 includes a motor 31. The motor 31 is disposed at the open end of the housing 10. The output shaft of the motor 31 is connected to the dispensing core 20 to drive the dispensing core 20 to rotate.

[0115] In the fourth embodiment of the present invention, as Figure 12 shown, the motor 31 is disposed on the side of the dispensing core 20 away from the air inlet 11. The motor 31 is mounted on the open end of the housing 10 through a mounting plate 34, and is connected between the output shaft of the motor 31 and the end of the dispensing core 20 away from the air inlet 11.

[0116] In the fourth embodiment of the present invention, optionally, the motor 31 is a stepper motor 31 or a servo motor 31.

[0117] It can be understood that in the above embodiments, the motor 31 can be replaced by an electromagnet with a limited position or other components that achieve the same effect and function, which will not be elaborated here.

[0118] In other embodiments of the present invention, as Figure 13-15 shown, the dispensing core 20 is movably disposed in the dispensing cavity so that the dispensing core 20 has multiple dispensing positions.

[0119] In the fifth embodiment of the present invention, as Figure 13 shown, a plurality of the air outlets 12 are spaced apart in the moving direction of the dispensing core 20 so that different air outlets 12 are opened when the dispensing core 20 moves to different dispensing positions.

[0120] In this way, the number of opened air outlets 12 can be controlled to achieve the dispensing of the gas entering the dispensing cavity.

[0121] In the fifth embodiment of the present invention, further, as Figure 13 shown, the air inlet 11 is provided on one side of the plurality of air outlets 12.

[0122] In the fifth embodiment of the present invention, further, as Figure 13 shown, the air inlet 11 is provided on one side of the dispensing core 20; the dispensing core 20 can move in a direction close to or away from the air inlet 11. In this way, the opening and closing of the air inlet 11 can be prevented from being affected when the dispensing core 20 rotates at each dispensing position.

[0123] Specifically, a plurality of air outlets 12 are sequentially distributed in a direction away from the air inlet 11, and the multiple dispensing positions of the dispensing core 20 are also sequentially distributed in a direction away from the air inlet 11. When the dispensing core 20 sequentially moves to multiple dispensing positions in a direction away from the air inlet 11, the number of opened air outlets 12 increases sequentially.

[0124] In the fifth embodiment of the present invention, optionally, as Figure 13 shown, the number of the air outlets 12 is set to 4, and they are sequentially A, B, C, and D in a direction away from the air inlet 11. Among them, the dispensing core 20 has four dispensing positions. At the first dispensing position, the air inlet 11A is opened; at the second dispensing position, the air inlets 11A and B are opened; at the third dispensing position, the air inlets 11A, B, and C are opened; at the fourth dispensing position, the air inlets 11A, B, C, and D are opened.

[0125] In the fifth embodiment of the present invention, further, as Figure 13As shown, one end of the dispensing core 20 near the air inlet 11 is provided with a gas storage cavity 23. The end of the gas storage cavity 23 near the air inlet 11 is provided with an opening to communicate the gas storage cavity 23 with the air inlet 11 for storing gas.

[0126] It can be understood that based on the gas storage cavity 23, the air inlet can be arranged at other positions. For example, one end of the dispensing core 20 is provided with a gas storage cavity 23. The air inlet 11 is correspondingly arranged with the gas storage cavity 23, and a communication port is provided on the dispensing core 20 corresponding to the air inlet 11. One of the communication port or the air inlet 11 extends in the moving direction of the dispensing core 20, so that when the dispensing core 20 is at any dispensing position, the air inlet 11 is communicated with the communication port; at this time, optionally, the air inlet 11 can be arranged opposite to a plurality of air outlets 12.

[0127] In the sixth embodiment of the present invention, as Figure 14 shown, a plurality of the air outlets 12 are spaced apart in the circumferential direction of the moving track of the dispensing core 20.

[0128] The dispensing core 20 has a flow dividing cavity 21 communicated with the air inlet 11. A plurality of flow dividing ports 22 communicated with the flow dividing cavity 21 are provided on the dispensing core 20. The plurality of flow dividing ports 22 are spaced apart in the circumferential direction of the moving track of the dispensing core 20. The plurality of flow dividing ports 22 are respectively arranged in one-to-one correspondence with the plurality of air outlets 12;

[0129] The lengths of at least two of the flow dividing ports 22 in the moving direction of the dispensing core 20 are not equal, so that when the dispensing core 20 moves to different dispensing positions, different flow dividing ports 22 are communicated with the corresponding air outlets 12 to open different air outlets 12.

[0130] In this way, the number and position of the opened air outlets 12 can be controlled to distribute the gas entering the dispensing cavity.

[0131] In the sixth embodiment of the present invention, further, as Figure 14 shown, the lengths of the plurality of flow dividing ports 22 in the moving direction of the dispensing core 20 gradually increase or decrease in the circumferential direction of the moving track of the dispensing core 20.

[0132] In the sixth embodiment of the present invention, further, as Figure 14 shown, one ends of the plurality of flow dividing ports 22 are located at or near the same arc.

[0133] In the sixth embodiment of the present invention, further, as Figure 14As shown, the air inlet 11 is provided on one side of a plurality of air outlets 12; the air inlet 11 is provided on one side of the distribution core 20, and the flow splitting chamber 21 is provided at one end of the distribution core 20 close to the air inlet 11. An opening is provided at one end of the flow splitting chamber 21 close to the air inlet 11 so that the flow splitting chamber 21 communicates with the air inlet 11. In this way, it is possible to avoid the influence of the movement of the distribution core 20 at each distribution position on the opening and closing of the air inlet 11.

[0134] Of course, the air inlet 11 can also be provided at other positions. For example, the air inlet 11 can be correspondingly arranged with the flow splitting chamber 21, and a communication port corresponding to the air inlet 11 is provided on the distribution core 20. One of the communication port or the air inlet 11 extends in the moving direction of the distribution core 20 so that when the distribution core 20 is at any distribution position, the air inlet 11 communicates with the communication port.

[0135] In the sixth embodiment of the present invention, optionally, as Figure 14 shown, the number of the air outlets 12 is 4, which are A, B, C, and D in sequence; 4 flow splitting ports 22 are correspondingly provided and gradually increase in the circumferential direction of the moving track of the distribution core 20.

[0136] Correspondingly, the distribution core 20 has four distribution positions. At the first distribution position, the air inlet 11A communicates with its corresponding flow splitting port 22, that is, the air inlet 11A is opened; at the second distribution position, both the air inlets 11A and B communicate with their corresponding flow splitting ports 22, that is, the air inlets 11A and B are opened; at the third distribution position, the air inlets 11A, B, and C all communicate with their corresponding flow splitting ports 22, that is, the air inlets 11A, B, and C are opened; at the fourth distribution position, the air inlets 11A, B, C, and D all communicate with their corresponding flow splitting ports 22, that is, the air inlets 11A, B, C, and D are opened.

[0137] In the seventh embodiment of the present invention, as Figure 15 shown, a plurality of the air outlets 12 are spaced apart in the circumferential direction of the moving track of the distribution core 20.

[0138] The distribution core 20 has a flow splitting chamber 21 communicating with the air inlet 11. The distribution core 20 is provided with multiple groups of flow splitting ports at intervals in the moving direction of the distribution core 20. Each group of the flow splitting ports includes at least one flow splitting port 22. Among them, the flow splitting port 22 is provided on the side wall of the flow splitting chamber 21.

[0139] Different groups of the flow splitting ports include different flow splitting ports 22 corresponding to different ones of the air outlets 12 so that when the distribution core 20 moves to different distribution positions, different ones of the flow splitting ports 22 communicate with the corresponding air outlets 12 to open different ones of the air outlets 12. That is to say, different groups of the flow splitting ports include flow splitting ports 22 with different numbers and / or different positions.

[0140] Thus, by designing the distribution of the shunt ports 22, the driving distribution movement can be used to open different numbers and / or different positions of the air outlet ports 12, so as to control the number and position of the opened air outlet ports 12, and to achieve the distribution of the gas entering the distribution cavity.

[0141] In the seventh embodiment of the present invention, further, the air inlet port 11 is provided on one side of a plurality of air outlet ports 12.

[0142] In the seventh embodiment of the present invention, the setting manner of the air inlet port 11 may refer to the setting manner of the air inlet port 11 in the sixth embodiment of the present invention, and will not be elaborated herein.

[0143] In the seventh embodiment of the present invention, as Figure 15 shown, the number of the air outlet ports 12 is 4, and they are respectively A, B, C, and D.

[0144] As Figure 15 shown, the number of groups of the shunt ports 22 is 15 groups. Among them, the first to fourth groups of shunt ports each have 1 shunt port 22, and they respectively correspond to the air outlet ports 12A, B, C, and D; the fifth to tenth groups of shunt ports each have 2 shunt ports 22, and they respectively correspond to 2 of the air outlet ports 12 in sequence; the eleventh to fourteenth groups of shunt ports each have 3 shunt ports 22, and they respectively correspond to 3 of the air outlet ports 12 in sequence; the fifteenth group of shunt ports has 4 shunt ports 22, and they respectively correspond to 4 air outlet ports 12.

[0145] It should be noted that in actual design, the shunt ports 22 with appropriate number of groups can be selected according to needs. For example, the first, fifth, eleventh, and fourteenth groups of shunt ports in the figure can be selected and arranged on the distribution core 20; or, the first, sixth, thirteenth, and fourteenth groups of shunt ports in the figure can be selected and arranged on the distribution core 20; or, the first, fifth, eighth, eleventh, and fourteenth groups of shunt ports in the figure can be selected and arranged on the distribution core 20.

[0146] In this part of the embodiments of the present invention (i.e., the embodiments in which the distribution core 20 is movably arranged in the distribution cavity), a sealing ring 40 and / or grease is provided between the distribution core 20 and the distribution cavity. Among them, the sealing ring 40 and / or grease is arranged between the circumferential surface and the inner wall surface of the distribution cavity. Thus, the sealed connection between the distribution core 20 and the housing 10 can be realized to prevent gas leakage.

[0147] In this part of the embodiments of the present invention (i.e., the embodiments in which the distribution core 20 is movably arranged in the distribution cavity), one end of the housing 10 is provided with an opening communicating with the distribution cavity, and the distribution core 20 extends into the distribution cavity from this opening. Thus, the installation difficulty of the distribution core 20 can be reduced.

[0148] In this partial embodiment of the present invention (i.e., the embodiment in which the dispensing core 20 is movably disposed in the dispensing cavity), the dispensing core 20 can be driven to move either by the motor 31 or by other power components (such as a cylinder or a hydraulic cylinder, etc.). The following gives examples for illustration.

[0149] In the fifth embodiment of the present invention, as Figure 13 shown, the driving device 30 includes a motor 31. The motor 31 is disposed at the open end of the housing 10, and the motor 31 drives the dispensing core 20 to move through a screw drive structure.

[0150] In the fifth embodiment of the present invention, optionally, the motor 31 is disposed on one side of the housing 10, and the motor 31 is mounted on the open end of the housing 10 through a mounting plate 34.

[0151] In the fifth embodiment of the present invention, optionally, the motor 31 is a stepper motor 31 or a servo motor 31.

[0152] In the eighth embodiment of the present invention, the driving device 30 includes a cylinder / hydraulic cylinder. The cylinder / hydraulic cylinder is disposed at the open end of the housing 10, and the output end of the cylinder / hydraulic cylinder is connected to the dispensing core 20 to drive the dispensing core 20 to move.

[0153] In the eighth embodiment of the present invention, optionally, the cylinder / hydraulic cylinder is disposed on one side of the housing 10, and the cylinder / hydraulic cylinder is mounted on the open end of the housing 10 through a mounting plate 34.

[0154] In addition, it should be particularly noted that the technical solutions between the above various embodiments can be combined or transferred to each other, but it must be based on the premise that those skilled in the art can implement them. When the combination or transfer of the technical solutions results in contradictions or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0155] The present invention also proposes a gas heating device. As Figure 1-18 shown, the gas heating device 1000 includes a gas dispensing device 100. The specific structure of the gas dispensing device 100 refers to the above embodiments. Since the gas heating device 1000 of the present invention adopts all the technical solutions of the above all embodiments, it at least has all the beneficial effects brought by the technical solutions of the above embodiments, and will not be elaborated one by one here.

[0156] Furthermore, as Figure 16-18As shown, the gas heating device 1000 further includes a burner (not shown in the figure). The burner includes a plurality of burner ports 201, and each of the air outlets 12 communicates with at least one of the burner ports 201. It can be understood that the burner ports 201 corresponding to different air outlets 12 are also different (including different positions and / or different numbers of the burner ports 201).

[0157] Optionally, the gas heating device 1000 is a gas water heater (such as a storage type gas water heater, etc.), or a gas wall-mounted boiler, or a gas cooker, etc., which are products using gas for heating.

[0158] In the first embodiment of the gas heating device 1000 of the present invention, as Figure 16 shown, the number of the burner ports 201 is 6 rows, and the number of the air outlets 12 is four, which are respectively A, B, C, and D. Among them, the air outlet 12A communicates with 1 burner port 201, the air outlet 12B communicates with 1 burner port 201, the air outlet 12C communicates with 2 burner ports 201, and the air outlet 12D communicates with 2 burner ports 201.

[0159] In the second embodiment of the gas heating device 1000 of the present invention, as Figure 17 shown, the number of the burner ports 201 is 7 rows, and the number of the air outlets 12 is four, which are respectively A, B, C, and D. Among them, the air outlet 12A communicates with 1 burner port 201, the air outlet 12B communicates with 1 burner port 201, the air outlet 12C communicates with 2 burner ports 201, and the air outlet 12D communicates with 3 burner ports 201.

[0160] In the third embodiment of the gas heating device 1000 of the present invention, as Figure 18 shown, the number of the burner ports 201 is 14 rows, and the number of the air outlets 12 is four, which are respectively A, B, C, and D. Among them, the air outlet 12A communicates with 3 burner ports 201, the air outlet 12B communicates with 2 burner ports 201, the air outlet 12C communicates with 3 burner ports 201, and the air outlet 12D communicates with 6 burner ports 201.

[0161] The above are only optional embodiments of the present invention, and do not limit the patent scope of the present invention. Any equivalent structural transformation made under the inventive concept of the present invention by using the content of the specification and drawings of the present invention, or directly / indirectly applied in other related technical fields, is included in the patent protection scope of the present invention.

Claims

1. A gas distribution device, characterized in that, comprising: a housing having a distribution chamber, an air inlet communicating with the distribution chamber and a plurality of air outlets communicating with the distribution chamber provided on the housing; and a distribution core movably disposed in the distribution chamber for opening or closing the air outlets; the distribution core has a plurality of distribution positions for selectively opening at least one of the air outlets, and different air outlets are opened when the distribution core is at different distribution positions; the distribution core is rotatably disposed in the distribution chamber so that the distribution core has a plurality of distribution positions; the plurality of air outlets are spaced apart in the rotational direction of the distribution core; the distribution core has a flow dividing chamber communicating with the air inlet, and a flow dividing port communicating with the flow dividing chamber is provided on the distribution core, and the flow dividing port is arranged corresponding to the plurality of air outlets; the circumferential length of the flow dividing port in the rotational direction of the distribution core is greater than or equal to the circumferential distribution length of the plurality of air outlets in the rotational direction of the distribution core, so that when the distribution core rotates to different distribution positions, different numbers of the flow dividing ports communicate with the corresponding air outlets to open different numbers of the air outlets; at one of the distribution positions, at least three of the flow dividing ports communicate with the corresponding air outlets to open at least three of the air outlets.

2. The gas distribution device according to claim 1, characterized in that, the gas distribution device further comprises a driving device for driving the distribution core to move in the distribution chamber.

3. The gas distribution device according to claim 2, characterized in that, the driving device includes a motor, an opening communicating with the distribution chamber is provided at one end of the housing, the motor is arranged at the opening end of the housing, and the output shaft of the motor is connected to the distribution core for driving the distribution core to rotate; or, the driving device includes a motor and a transmission assembly, an opening communicating with the distribution chamber is provided at one end of the housing, the motor is arranged at the opening end of the housing, the transmission assembly includes a first gear arranged on the output shaft of the motor and a second gear connected to the distribution core, the first gear is in meshing transmission connection with the second gear, and the motor drives the distribution core to rotate through the transmission assembly.

4. The gas distribution device according to claim 1, characterized in that, a sealing ring and / or grease is provided between the distribution core and the distribution chamber; and / or, the number of the air outlets is greater than or equal to 3.

5. A gas heating device, characterized in that, the gas heating device comprises: a burner including a plurality of burner ports; the gas distribution device according to any one of claims 1 to 4, and each of the air outlets is correspondingly communicated with at least one of the burner ports.

6. The gas heating device according to claim 5, characterized in that, the gas heating device is a gas water heater, or a gas wall-mounted boiler, or a gas cooker.

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