Gas furnace and gas furnace control system

Abstract

The utility model discloses a gas furnace and a gas furnace control system. The gas furnace control system comprises a valve body, wherein the valve body is provided with a gas inlet and a gas outlet; at least part of the valve element is arranged in the valve body, and the valve element rotates to control the gas output of the gas outlet; a valve rod; the valve core is driven to work; and the driving part drives the valve rod to work. The control valve is simple in structure, the driving motor works to drive the valve rod to drive the valve element to rotate, accurate control over rotation of the valve element and accurate control over the air inflow are achieved, temperature control can be achieved in cooperation with the temperature detection module, the valve element is controlled to rotate to increase the air inflow if the temperature is not enough, and the control valve is convenient to use. In addition, the controller is adopted for driving and controlling, a user does not need to frequently operate a plurality of valve rods to change the temperature of the oven, and the valve rods do not need to be manually rotated to control the temperature.

Description

Technical Field

[0001] This utility model belongs to the field of burner technology, specifically relating to a gas furnace and a gas furnace control system. Background Technology

[0002] A stopcock valve is a device that manually adjusts the gas flow rate by rotating it. It is commonly used in the burners of gas stoves to control the amount of gas entering the air and thus the size of the flame. The size of the flame corresponds to the temperature. However, the existing manual control is relatively crude in terms of adjusting the amount of gas entering the air, requiring users to have some grilling experience to make a rough judgment on the temperature, making it difficult to adjust precisely. Furthermore, a gas stove has multiple burners, so it is difficult for a single user to operate multiple stopcock valves. Therefore, a gas stove and its control system are very important. Utility Model Content

[0003] To solve at least one of the above-mentioned technical problems, this utility model provides a gas furnace, including at least one burner and a temperature control valve, wherein the gas outlet of the valve body is connected to the gas inlet of the burner. Each burner may provide the same or different temperatures. The temperature control valve includes:

[0004] The valve body has an air inlet and an air outlet.

[0005] A valve core, at least partially disposed within the valve body, rotates to control the amount of air output from the outlet.

[0006] Valve stem; drives the valve core to operate;

[0007] A drive component drives the valve stem to operate.

[0008] The valve core structure described above adopts the existing valve core structure of a plug valve. The driving component includes a drive motor, and the output shaft of the drive motor is connected to the valve stem through a transmission assembly.

[0009] Through the above technical solution, this utility model adjusts the rotation of the valve core by rotating the drive motor, thereby achieving precise control of the air intake volume and thus precise temperature control.

[0010] Preferably, the transmission assembly includes a drive gear assembly connected to the valve stem and a drive gear fixed to the output shaft of the drive motor. The drive gear drives the drive gear assembly to rotate, which in turn drives the valve stem to rotate, thereby controlling the valve core rotation to precisely control the air volume. The drive gear and the drive gear assembly are connected by a multi-stage transmission gear set.

[0011] This invention uses a multi-stage transmission gear set for transmission, which enables precise control of the drive motor.

[0012] Preferably, it also includes an anti-misoperation part, the valve stem is provided with a connecting part, the anti-misoperation part is provided with a control boss on one side, the surface of the control boss is at least partly a control surface, and the valve core is provided with a mating part that cooperates with the connecting part;

[0013] When the valve stem moves axially toward the valve body, the connecting part disengages from the anti-misrotation part and enters the mating part. After circumferential rotation, the connecting part enters the control surface of the control boss, and the driving component works to control the valve core rotation part.

[0014] It also includes a housing, the valve body is connected to the back side of the housing, the valve stem passes through the housing at least partially, the housing has a chamber, the valve body is provided with a first limiting part and a second limiting part in the chamber, and a spring is arranged between the first limiting part and the second limiting part so that the valve stem and the valve core are separated when no external force is applied to prevent accidental contact.

[0015] The drive gear assembly is movably connected to the valve stem. The drive gear assembly includes a driven gear with a drive part. The valve stem has a driven part that mates with the drive surface, so that the valve stem can move axially with the drive gear assembly and can rotate circumferentially following the driven gear.

[0016] The drive gear assembly also includes a driven plate, and a drive component is provided between the driven plate and the driven gear. The drive component includes a drive protrusion disposed on the driven plate and the driven gear, and a drive guide rail that cooperates with the drive protrusion.

[0017] Secondly, this utility model provides a gas stove control system, including a plurality of gas stoves, each of which is equipped with a temperature detection module at its burner, and also includes a controller. The plurality of controllers are electrically connected to the input terminal of the controller, and the output terminal of the temperature detection module is electrically connected to the drive component of the gas stove. It can detect the oven temperature in real time during use and make fine adjustments when the oven temperature does not match the set temperature.

[0018] The connecting part enters the control surface of the control boss, drives the component to work, and then controls the valve core rotation part.

[0019] It also includes a housing, the valve body is connected to the back side of the housing, the valve stem passes through the housing at least partially, the housing has a chamber, the valve body is provided with a first limiting part and a second limiting part in the chamber, and a spring is arranged between the first limiting part and the second limiting part so that the valve stem and the valve core are separated when no external force is applied to prevent accidental contact.

[0020] The drive gear assembly is movably connected to the valve stem. The drive gear assembly includes a driven gear with a drive part. The valve stem has a driven part that mates with the drive surface, so that the valve stem can move axially with the drive gear assembly and can rotate circumferentially following the driven gear.

[0021] The drive gear assembly also includes a driven plate, and a drive component is provided between the driven plate and the driven gear. The drive component includes a drive protrusion disposed on the driven plate and the driven gear, and a drive guide rail that cooperates with the drive protrusion.

[0022] Secondly, this utility model provides a gas stove control system, including a plurality of gas stoves, each of which is equipped with a temperature detection module at its burner, and also includes a controller. The plurality of controllers are electrically connected to the input terminal of the controller, and the output terminal of the temperature detection module is electrically connected to the drive component of the gas stove. It can detect the oven temperature in real time during use and make fine adjustments when the oven temperature does not match the set temperature.

[0023] It also includes an electronic control panel, which is electrically connected to the input terminal of the controller. The control panel allows the user to input the desired temperature on the control panel, and the control area adjusts the air intake volume based on the input temperature.

[0024] It also includes a support frame with a cooking area inside the support frame, at least one burner disposed in the cooking area, and a partition installed on the cooking area above the at least one burner.

[0025] The bracket has a third through hole for the valve stem to pass through, and the valve stem connects to the knob after passing through the third through hole; the partition is inverted V-shaped, and at least one second through hole is formed on both sides of the partition; the bottom of the cooking area is sloped, and a fourth through hole is formed at the bottom of the slope to guide oil. It also includes a first placement plate installed above the partition; and a second placement plate installed above the first placement plate.

[0026] Through the above technical solution, the baffle plate can protect the burner from damage by food grease, and the inverted V-shape can be used to guide the grease. The second perforation not only increases the thermal expansion and contraction stress but also serves to guide the flame and smoke. The first placement plate is used to place cooked food, and the second placement plate can be used to place prepared food or smoked food. The fourth perforation can be fitted with a plug, which can be opened to unload the grease when it is full.

[0027] Compared with the prior art, the advantages of this utility model are as follows: This utility model has a simple structure. The valve stem is driven by the drive motor to rotate the valve core, thereby achieving precise control of the valve core rotation and accurate control of the air intake. In addition, with the temperature detection module, the temperature can be controlled. If the temperature is not high enough, the valve core rotation is controlled to increase the air intake. If the temperature is too high, the valve core rotation is controlled to decrease the air intake. Furthermore, the controller-driven control eliminates the need for users to frequently operate multiple valve stems to change the oven temperature and eliminates the need to manually rotate the valve stems to control the temperature. Attached Figure Description

[0028] Figure 1 This is a perspective view of the temperature control valve of this utility model;

[0029] Figure 2 This is a three-dimensional cross-sectional view of the temperature control valve of this utility model;

[0030] Figure 3 This is a schematic diagram of the valve core structure of the temperature control valve of this utility model;

[0031] Figure 4 This is a perspective view of the concealed valve body of the temperature control valve of this utility model;

[0032] Figure 5 This is a schematic diagram of the transmission part of the temperature control valve of this utility model;

[0033] Figure 6 This is a schematic diagram of the valve stem connection structure of the temperature control valve of this utility model;

[0034] Figure 7 Control block diagram of this utility model;

[0035] Figure 8 This is the circuit diagram of the controller of this utility model;

[0036] Figure 9 This is a three-dimensional cross-sectional view of a gas furnace;

[0037] Figure 10 This is a schematic diagram of the structure of the driving bump section;

[0038] Figure 11 This is a schematic diagram of the drive guide rail structure;

[0039] Figure 12 To match the three-dimensional view of the structural cross-section;

[0040] Figure 13 This is a perspective view of the gas furnace of this utility model.

[0041] Figure label:

[0042] 1. Valve body; 101. Air inlet; 102. Air outlet;

[0043] 2. Valve core; 201. Inlet; 202. Outlet; 203. Fitting part;

[0044] 3. Valve stem; 301. Drive gear assembly; 302. Connecting part; 303. Driven gear; 304. Drive part; 305. Driven part; 306. Driven plate; 307. Mounting groove;

[0045] 4. Drive motor; 401. Drive gear; 402. Multi-stage transmission gear set;

[0046] 5. Outer shell; 501. Anti-misrotation part; 502. Control boss; 503. Control surface; 504. First limiting part; 505. Second limiting part; 506. Spring; 507. Chamber; 708. Through outlet; 509. Support block;

[0047] 6. Temperature control valve; 7. Gas furnace; 8. Temperature detection module; 9. Controller; 10. Electrical control panel; 11. Burner;

[0048] 1201 Drive bump; 1202 Drive guide rail;

[0049] 13. Support; 1301. Cooking area; 1302. Partition; 1303. Third perforation; 1304. Knob; 1305. Second perforation; 1306. Sloping surface; 1307. Fourth perforation; 1308. First placement plate; 1409. Second placement plate. Detailed Implementation

[0050] To enable those skilled in the art to better understand this utility model and to more clearly define the scope of protection claimed by this utility model, the present utility model is described in detail below with reference to certain specific embodiments. It should be noted that the following are only some specific embodiments of the present utility model concept, and are only a part of the embodiments of this utility model. The specific and direct description of related structures is only for the convenience of understanding this utility model, and the specific features do not necessarily or directly limit the scope of implementation of this utility model.

[0051] Referring to the accompanying drawings, this utility model adopts the following technical solution: Firstly, this utility model provides a gas furnace 7, including a burner and a temperature control valve 6. The gas outlet 102 of the valve body 1 is connected to the gas inlet of the burner. Each burner may provide the same or different temperatures.

[0052] Temperature control valve 6 includes:

[0053] Valve body 1, with an air inlet 101 and an air outlet 102 provided on the valve body 1;

[0054] The valve core 2 is at least partially disposed within the valve body 1, and the valve core 2 rotates to control the amount of air output from the air outlet 102;

[0055] Valve stem 3; drives valve core 2 to work;

[0056] The driving component drives the valve stem 3 to work.

[0057] The valve core 2 structure described above adopts the existing valve core 2 structure of a plug valve. For example, the valve core 2 is provided with several inlets 201 of different diameters and at least two connecting channels with different air transmission volumes. The inlets 201 are located at one end of the connecting channel, and the other end of the connecting channel forms an outlet 202. The two ends of the connecting channel are respectively connected to the air inlet 101 and the air outlet 102. For example, there are two connecting channels. When the inlet 201 of one connecting channel is connected to the air inlet 101, the inlet 201 of the other connecting channel is blocked by the inner wall of the valve body 1, thereby realizing the adjustment of the air intake volume by rotating the valve core 2. The driving component includes a drive motor 4, and the output shaft of the drive motor 4 is connected to the valve stem 3 through a transmission assembly.

[0058] Through the above technical solution, this utility model adjusts the rotation of the valve core 2 by rotating the drive motor 4, thereby achieving precise control of the intake volume and thus precise temperature control.

[0059] Preferably, the transmission assembly includes a drive gear assembly 301 connected to the valve stem 3 and a drive gear 401 fixed to the output shaft of the drive motor 4. The drive gear 401 drives the drive gear assembly 301 to rotate, thereby driving the valve stem 3 to rotate and control the valve core 2 to precisely control the air volume. The drive gear 401 and the drive gear assembly 301 are connected by a multi-stage transmission gear set 402.

[0060] This utility model uses a multi-stage transmission gear set 402 for transmission, which can achieve precise control of the drive motor 4.

[0061] In this embodiment, a drive motor 4 is used for driving. In other embodiments, an electric telescopic rod can be used, for example, with a rod body fixed at the end of the electric telescopic rod, and linearly arranged tooth grooves on the rod body that mesh with the driven gear 303.

[0062] Preferably, it also includes an anti-misrotation part 501. The valve stem 3 is provided with a connecting part 302. The anti-misrotation part 501 has a control boss 502 on one side. At least part of the surface of the control boss 502 is a control surface 503. The valve core 2 is provided with a mating part 203 that cooperates with the connecting part 302. When the valve stem 3 moves axially toward the valve body 1, the connecting part 302 disengages from the anti-misrotation part 501 and enters the mating part 203. After circumferential rotation, the connecting part 302 enters the control surface 503 of the control boss 502, and the driving component works to control the rotation of the valve core 2. In this embodiment, the mating part 203 is a mating groove formed on the valve core 2. In this embodiment, the connecting part 302 is a connecting protrusion fixed to the end of the valve stem 3. The connecting protrusion can be perpendicular to the valve stem 3 or at an acute or obtuse angle.

[0063] It also includes a housing 5, the valve body 1 is connected to the back side of the housing 5, the valve stem 3 passes through the housing 5 at least partially, the housing 5 is provided with a chamber 507, the valve body 1 is provided with a first limiting part 504 and a second limiting part 505 in the chamber 507, and a spring 506 is arranged between the first limiting part 504 and the second limiting part 505 so that the valve stem 3 is separated from the valve core 2 when no external force is applied to prevent accidental contact.

[0064] The anti-misrotation unit 501 and the control boss 502 are disposed on the outer wall of the housing 5.

[0065] The drive gear assembly 301 is movably connected to the valve stem 3. The drive gear assembly 301 includes a driven gear 303, which has a drive portion 304. The valve stem 3 has a driven portion 305 that mates with the drive surface, so that the valve stem 3 can move axially with the drive gear assembly 301 and can rotate circumferentially with the driven gear 303. In this embodiment, the drive gear assembly also includes a driven plate, and a drive component is provided between the driven plate and the driven gear. The drive component includes a drive protrusion 1201 disposed on the driven plate 306, a drive protrusion 1201 of the driven gear, and a drive guide rail 1202 that mates with the drive protrusion 1201. A circular hole is formed in the center of the driven gear 303, and a first through hole is formed on the driven plate 306. One side wall of the first through hole is a plane to form a driving part 304. This plane forms a driving surface. At least part of the outer wall of the valve stem 3 is provided with a plane that cooperates with the driving surface to form a driven part 305. When the driven gear 303 rotates, the valve stem 3 can rotate circumferentially and can move axially relative to the driven gear 303.

[0066] When this invention is not controlled by a drive motor, the drive protrusion 1201 moves within the drive guide rail 1202, enabling manual control of the valve's air volume. When this invention requires motor control, the inner wall of at least one end of the drive guide rail 1202 drives the drive protrusion 1201 to move, thereby controlling the rotation of the valve stem 3.

[0067] The driving gear 401 meshes with the multi-stage transmission gear set 402, and the multi-stage transmission gear set 402 meshes with the driven gear 303.

[0068] The valve stem 3 has an external mounting groove 307, and a retaining ring is installed in the mounting groove 307. A first limiting part 504 is formed on one side of the retaining ring, and a second limiting part 505 is formed on one side of the driven plate 306. When no external force is applied, the outer wall of the retaining ring abuts against the inner wall of the chamber 507.

[0069] The outer casing 5 has an outlet 708 for the valve stem 3 to pass through. A support block 509 is fixed in the cavity 507 located on the inner side wall of the outlet 708, and the support block 509 supports the driven gear 303.

[0070] In other embodiments, the anti-accidental touch function may not be provided, and the gear of the drive gear assembly 301 may be directly fixed to the valve stem 3, so the valve stem 3 directly drives the valve core 2 to rotate.

[0071] It also includes a support 13, in which a cooking area 1301 is opened, at least one burner is disposed in the cooking area 1301, and a partition 1302 is installed on the cooking area 1301 above the at least one burner.

[0072] The bracket 13 has a third through hole 1303 for the valve stem to pass through, and the valve stem connects to the knob 1304 after passing through the third through hole 1303. The partition 1302 is inverted V-shaped, and at least one second through hole 1305 is formed on both sides of the partition 1302. The bottom of the cooking area 1301 is a slope 1306, and a fourth through hole 1307 is formed at the bottom of the slope 1306 to guide oil. It also includes a first placement plate 1308, which is installed above the partition 1302; and a second placement plate 1309, which is installed above the first placement plate 1308.

[0073] Through the above technical solution, the baffle 1302 can protect the burner from damage by food grease, and the inverted V-shape can be used for oil drainage. The second perforation 1305 can not only increase thermal expansion and contraction stress but also achieve the functions of guiding fire and smoke. The first placement plate 1308 is used to place cooked food, and the second placement plate 1309 can place prepared food or smoked food. The fourth perforation 1307 can be equipped with a plug, which can be opened to unload the grease when it is full.

[0074] Secondly, this utility model provides a gas stove 7 control system, including a plurality of gas stoves 7 as described above, each gas stove 7 having a temperature detection module 8 configured at the burner, and also including a controller 9, the plurality of controllers 9 being electrically connected to the input terminal of the controller 9, and the output terminal of the temperature detection module 8 being electrically connected to the drive component of the gas stove 7, which can detect the oven temperature in real time during use and make fine adjustments when the oven temperature does not match the set temperature.

[0075] It also includes an electronic control panel 10, such as an existing touch screen, which is electrically connected to the input terminal of the controller 9. The controller 10 can adjust the air intake volume according to the temperature input on the control panel 503.

[0076] This invention adopts a multi-threaded working mode, which can turn all valve bodies 1 to the same set temperature with one click through the control panel, or can be controlled individually to achieve zoned grilling.

[0077] The temperature detection module 8 can use an existing temperature sensor.

[0078] like Figure 8 As shown in the diagram, Input01, Input02, Input11, Input12, PHASE1, and PHASE2 are signals controlling valve stem 3, mainly controlling the rotation direction, rotation angle, and rotation speed of drive motor 4. OUT1A, OUT1B, OUT2A, and OUT2B are the output sections of the drive chip, providing drive voltage and forward / reverse signals to drive motor 4.

[0079] Compared with the prior art, the advantages of this utility model are as follows: This utility model has a simple structure. The drive motor 4 drives the valve stem 3 to rotate the valve core 2, thereby achieving precise control of the rotation of the valve core 2 and accurate control of the air intake. In addition, with the temperature detection module 8, the temperature can be controlled. If the temperature is not high enough, the valve core 2 is controlled to rotate to increase the air intake. If the temperature is too high, the valve core 2 is controlled to rotate to decrease the air intake. Furthermore, the controller 9 drives the control, eliminating the need for the user to frequently operate multiple valve stems 3 to change the oven temperature. There is no need to manually rotate the valve stems 3 to control the temperature.

[0080] The installation position of this utility model is the same as that of the plug valve in a traditional gas furnace.

[0081] The technical solution of this utility model has been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it will be readily understood by those skilled in the art that the protection scope of this utility model is obviously not limited to these specific embodiments. Without departing from the principle of this utility model, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will all fall within the protection scope of this utility model.

Claims

1. A gas-fired furnace, comprising at least one burner, characterized in that: Each of the burners (11) is equipped with at least one temperature control valve (6). The temperature control valve (6) includes: The valve body (1) has an air inlet (101) and an air outlet (102). The valve core (2) is at least partially disposed within the valve body (1), and the valve core (2) rotates to control the amount of air output from the air outlet (102); Valve stem (3); drives the valve core (2) to work; The driving component drives the valve stem (3) to work; The outlet (102) of the valve body (1) is connected to the gas inlet of the burner (11); each burner (11) provides the same or different temperatures; The driving component includes a drive motor (4), the output shaft of which is connected to the valve stem (3) via a transmission assembly; the transmission assembly includes a drive gear assembly (301) connected to the valve stem (3) and a drive gear (401) fixed to the output shaft of the drive motor (4). The drive gear (401) drives the drive gear assembly (301) to rotate, thereby driving the valve stem (3) to rotate to control the valve core (2) to rotate and precisely control the air volume; the drive gear (401) and the drive gear assembly (301) are connected by a multi-stage transmission gear set (402).

2. The gas-fired furnace according to claim 1, characterized in that: It also includes a support (13) with a cooking area (1301) inside the support (13), at least one burner is disposed in the cooking area (1301), and a partition (1302) is installed on the cooking area (1301) above the at least one burner.

3. The gas-fired furnace according to claim 2, characterized in that: The bracket (13) has a third through hole (1303) for the valve stem to pass through, and the valve stem is connected to the knob (1304) after passing through the third through hole (1303); and / or, the partition (1302) is inverted V-shaped, and at least one second through hole (1305) is provided on both sides of the partition (1302); and / or, the bottom of the cooking area (1301) is a slope (1306), and a fourth through hole (1307) is formed at the bottom of the slope (1306) to guide oil.

4. The gas-fired furnace according to claim 2, characterized in that: It also includes a first placement plate (1308) installed above the partition (1302); and a second placement plate (1309) installed above the first placement plate (1308).

5. The gas-fired furnace according to claim 1, characterized in that: It also includes an anti-misoperation part (501), a connecting part (302) is provided on the valve stem (3), a control boss (502) is provided on one side of the anti-misoperation part (501), at least part of the surface of the control boss (502) is a control surface (503), and a mating part (203) is provided on the valve core (2) to cooperate with the connecting part (302). When the valve stem (3) moves axially toward the valve body (1), the connecting part (302) disengages from the anti-misrotation part (501) and enters the mating part (203). After circumferential rotation, the connecting part (302) enters the control surface (503) of the control boss (502), and the driving component works to control the rotating part of the valve core (2).

6. The gas furnace according to claim 1, characterized in that: It also includes a housing (5), the valve body (1) is connected to the back side of the housing (5), the valve stem (3) passes through the housing (5) at least partially, the housing (5) is provided with a chamber (507), the valve body (1) is located in the chamber (507) and is provided with a first limiting part (504) and a second limiting part (505), a spring (506) is arranged between the first limiting part (504) and the second limiting part (505) so that the valve stem (3) and the valve core (2) are separated when no external force is applied to prevent accidental contact.

7. The gas-fired furnace according to claim 1, characterized in that: The drive gear assembly (301) is movably connected to the valve stem (3). The drive gear assembly (301) includes a driven gear (303). The driven gear (303) is provided with a drive part (304). The valve stem (3) is provided with a driven part (305) that cooperates with the drive surface, so that the valve stem (3) can move axially with the drive gear assembly (301) and can rotate circumferentially with the driven gear (303).

8. The gas-fired furnace according to claim 7, characterized in that: The drive gear assembly (301) also includes a driven plate (306), and a drive component is provided between the driven plate (306) and the driven gear (303). The drive component includes a drive protrusion (1201) disposed on the driven plate (306) and the driven gear (303), and a drive guide rail (1202) cooperating with the drive protrusion (1201).

9. A gas-fired boiler control system, characterized in that: The gas furnace (7) includes several gas furnaces (7) as described in claim 7, each of which has a temperature detection module (8) at its burner, and also includes a controller (9), wherein several controllers (9) are electrically connected to the input terminal of the controller (9), and the output terminal of the temperature detection module (8) is electrically connected to the drive component of the gas furnace (7).

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