CN210801261U - Single-needle pulse ignition fire detection device and wall-mounted furnace thereof - Google Patents
Single-needle pulse ignition fire detection device and wall-mounted furnace thereof Download PDFInfo
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- CN210801261U CN210801261U CN201921450243.XU CN201921450243U CN210801261U CN 210801261 U CN210801261 U CN 210801261U CN 201921450243 U CN201921450243 U CN 201921450243U CN 210801261 U CN210801261 U CN 210801261U
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Abstract
The utility model relates to a hanging stove technical field, more specifically relates to a fire device is examined in single needle pulse ignition and hanging stove thereof. The utility model provides a fire detection device is lighted in single needle pulse, includes power supply and feedback terminal, high-pressure discharge circuit and the ignition electrode terminal that connects gradually the electricity, power supply and feedback terminal still electricity are connected with the flame signal processing circuit who is used for detecting flame current, flame signal processing circuit electric connection director, the single needle ignition needle on the hanging stove is connected through the wire to the ignition electrode terminal. The utility model provides the integration level of promotion pulse ignition ware realizes the purpose of single needle ignition and examining fire to can effectively reduce the ignition, examine fire needle and electric wire quantity, both save material cost and simplify the installation procedure, can optimize the risk that connection of electric lines avoided connecing wrong wiring simultaneously again.
Description
Technical Field
The utility model relates to a hanging stove technical field, more specifically relates to a fire device is examined in single needle pulse ignition and hanging stove thereof.
Background
The pulse igniter of the double needles is electrically connected with the double needle ignition needle, and an ignition arc is generated on the ignition needle to finish ignition; and in the ignition process, the flame current is detected by the fire detection needle to judge whether ignition is performed. In this way, three needles and three wires are used in total, the wiring is troublesome and the risk of wrong wiring exists. In addition, the existing pulse igniter only has a high-voltage output circuit and does not have a fire detection circuit, so that the defect that flame current cannot be detected exists.
SUMMERY OF THE UTILITY MODEL
The utility model overcomes the defects of the prior art and provides a single-needle pulse ignition fire detection device.
In order to solve the technical problem, the utility model discloses a technical scheme is: the utility model provides a fire detection device is lighted in single needle pulse, includes power supply and feedback terminal, high-pressure discharge circuit and the ignition electrode terminal that connects gradually the electricity, power supply and feedback terminal still electricity are connected with the flame signal processing circuit who is used for detecting flame current, flame signal processing circuit electric connection director, the single needle ignition needle on the hanging stove is connected through the wire to the ignition electrode terminal.
In the technical scheme, when the single-needle pulse ignition fire detection device is ignited, an electric signal is input from a power supply and feedback terminal through an electric wire, the electric signal is converted into a high-voltage pulse signal through a high-voltage discharge circuit on an ignition circuit board, the high-voltage pulse signal is output through an ignition electrode terminal and is transmitted to a single-needle ignition needle on the wall-mounted furnace through the electric wire, the single-needle ignition needle performs grounding discharge on a shell, and high-voltage electric arc is formed to realize wall-mounted furnace ignition; after ignition, a single-needle ignition needle of the wall-mounted furnace transmits a flame current signal to an ignition electrode terminal through a wire, receives the flame current signal through the ignition electrode terminal, transmits the flame current signal to a flame signal processing circuit for detecting the flame current through a power supply and feedback terminal to process, and the flame signal processing circuit transmits the processed signal to a controller. Promote the pulse ignition ware integrated level through this scheme, realize the purpose of single needle ignition and examining fire to can effectively reduce the ignition, examine fire needle and electric wire quantity, both save material cost and simplify the installation procedure, can optimize the risk that the connection of electric lines avoids connecing wrong line again simultaneously.
Preferably, the high-voltage discharge circuit comprises a resistor R1, a resistor R2, a diode D2, a capacitor C1, a diac D3, a diac D4 and a high-voltage package T1, wherein one end of the resistor R1 is connected to the first terminal of the power supply and feedback terminal, the other end of the resistor R1 is connected to the anode of a diode D2, the cathode of the diode D2 is connected to one end of the capacitor C1 and one end of the diac D3, the other end of the diac D3 is connected to one end of the primary winding of the high-voltage package T1, the other end of the primary winding of the high-voltage package T1 is connected to the other end of the capacitor C1 and one end of the resistor R2, and the other end of the resistor R2 is connected to the second terminal of the power supply and feedback terminal; one end of the secondary winding of the high-voltage pack T1 is connected with the ignition electrode terminal, one end of the bidirectional trigger diode D is electrically connected with the third terminal of the power supply and feedback terminal, and the other end of the secondary winding of the high-voltage pack T1 and the other end of the bidirectional trigger diode D are both grounded.
Preferably, the flame signal processing circuit comprises a resistor R3, a resistor R4, a resistor R5, a resistor R6, a resistor R7, a capacitor C2, a capacitor C3 and a transformer T2, wherein one end of the resistor R7 is electrically connected to the third terminal of the power supply and feedback terminal, the other end of the resistor R7 is connected to one end of the resistor R6 and one end of the capacitor C3, the other end of the resistor R6 is connected to one end of the resistor R5, the other end of the resistor R5 is connected to one end of the capacitor C2, one end of the resistor R3, one end of the resistor R4 and the controller, the other end of the resistor R3 is connected to the 5V power supply, the other end of the capacitor C3 is connected to one end of the secondary side of the transformer T2, the other end of the secondary side of the transformer T2, the other end of the capacitor C7 and the other end of the resistor R3687458 are all grounded, and the primary side of the transformer.
Preferably, the power supply and feedback terminal, the high-voltage discharge circuit and the ignition electrode terminal are integrated on an ignition circuit board, and the ignition circuit board is arranged in a cavity formed by an ignition device upper shell and an ignition device bottom shell.
Preferably, the ignition device is provided with a fastening structure on two opposite side walls of the upper shell, and a fastening block matched with the fastening structure is convexly arranged on the bottom shell of the ignition device. In this technical scheme, ignition upper shell and ignition drain pan adopt buckle structure and fixture block structure's being connected, can make things convenient for installing in between and dismantling to be convenient for place the ignition circuit board in the cavity structure that ignition upper shell and ignition drain pan formed.
Preferably, the ignition circuit board further comprises a ground terminal, and the ground terminal is in contact with the wall-mounted furnace shell to form direct grounding. In the technical scheme, the grounding terminal is welded with the ignition circuit board, and the grounding terminal is in contact with the cantilever furnace shell to form direct grounding, so that the ignition circuit board is reliably grounded, and the safe and reliable operation of the ignition circuit board is ensured.
Preferably, the ground terminal includes first folded plate and second folded plate, first folded plate with the second folded plate forms L type structure, first folded plate is used for linking to each other with the ignition circuit board, be provided with the through-hole structure on the second folded plate, be provided with the pothook structure on the second folded plate, the pothook is structural to be provided with the fluting structure. In this technical scheme, the setting of through-hole structure is convenient for install the ground terminal on the hanging furnace casing through the screw. The hook structure can be connected with the ignition device bottom shell, so that firm installation between the grounding terminal and the ignition device bottom shell is realized. The slotted structure increases the elasticity of the hook structure, so that the hook structure has certain elastic deformation when being connected with the bottom shell of the ignition device.
Preferably, a threaded mounting structure is arranged on the ignition device bottom shell, and the threaded mounting structure comprises a mounting block convexly arranged on the side wall of the ignition device bottom shell, a threaded hole arranged on the mounting block, and a jack structure used for extending a first folding plate of the grounding terminal into the cavity structure; the end face of the mounting block is flush with the end face of the bottom shell of the ignition device.
Preferably, a groove structure for fixing the second folding plate is arranged on the bottom surface of the mounting block, and the groove structure is matched with the second folding plate. In this technical scheme, groove structure can fix a position the position of second folded plate on the one hand, and on the other hand can be so that install the bottom surface of second folded plate on the installation piece and the bottom parallel and level of ignition bottom shell, when installing the ignition bottom shell on the hanging furnace casing, has guaranteed the fastness of being connected between ignition bottom shell and the hanging furnace casing.
Preferably, an opening structure for fixing the hook structure is provided on the bottom surface of the mounting block. In this technical scheme, the pothook structure inserts to open structure in, can be so that pothook structure joint in open structure to guarantee the reliability of being connected between ground terminal and the ignition drain pan, prevent that ground terminal from taking place to rock in the use.
The utility model also provides a hanging stove, hanging stove adopts as above-mentioned single needle pulse ignition examine fire device.
Compared with the prior art, the beneficial effects are:
the utility model provides the integration level of promotion pulse ignition ware realizes the purpose of single needle ignition and examining fire to can effectively reduce the ignition, examine fire needle and electric wire quantity, both save material cost and simplify the installation procedure, can optimize the risk that connection of electric lines avoided connecing wrong wiring simultaneously again.
Drawings
Fig. 1 is a circuit diagram of the ignition circuit and the flame signal processing circuit of the present invention;
FIG. 2 is a schematic block diagram of a single needle pulse ignition fire detection device according to the present invention;
FIG. 3 is a perspective view of the single needle pulse ignition fire detection device of the present invention;
fig. 4 is a perspective view of the ignition circuit board of the present invention;
FIG. 5 is an exploded view of the single needle pulse ignition fire detection device of the present invention;
fig. 6 is a schematic view of the installation structure of the bottom shell and the grounding terminal of the ignition device of the present invention.
Detailed Description
The drawings are for illustrative purposes only and are not to be construed as limiting the patent; for the purpose of better illustrating the embodiments, certain features of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted. The positional relationships depicted in the drawings are for illustrative purposes only and are not to be construed as limiting the present patent.
The same or similar reference numerals in the drawings of the embodiments of the present invention correspond to the same or similar parts; in the description of the present invention, it should be understood that if there are the terms "upper", "lower", "left", "right", "long", "short", etc. indicating the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, it is only for convenience of description and simplification of description, but it is not intended to indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and therefore the terms describing the positional relationship in the drawings are only for illustrative purposes and are not to be construed as limiting the present patent, and those skilled in the art will understand the specific meaning of the terms according to their specific circumstances.
The technical solution of the present invention is further described in detail by the following specific embodiments in combination with the accompanying drawings:
example 1
As shown in fig. 1 to 6, the single-needle pulse ignition fire detection device includes a power supply and feedback terminal 21, a high-voltage discharge circuit 22 and an ignition electrode terminal 23 which are electrically connected in sequence, the power supply and feedback terminal 21 is also electrically connected with a flame signal processing circuit 24 for detecting flame current, the flame signal processing circuit 24 is electrically connected with a controller 8, and the ignition electrode terminal 23 is connected with a single-needle ignition needle on a wall-mounted furnace through a lead. The power supply and feedback terminal 21, the high-voltage discharge circuit 22 and the ignition electrode terminal 23 are integrated on the ignition circuit board 2, and the ignition circuit board 2 is installed in the cavity 4 formed by the ignition device upper shell 1 and the ignition device bottom shell 3. When the single-needle pulse ignition fire detection device is ignited, an electric signal is input from the power supply and feedback terminal 21 through an electric wire, is converted into a high-voltage pulse signal through the high-voltage discharge circuit 22 on the ignition circuit board 2, is output through the ignition electrode terminal 23 and is transmitted to the single-needle ignition needle on the wall-mounted furnace through the electric wire, and the single-needle ignition needle performs grounding discharge on the shell to form high-voltage electric arc to realize the ignition of the wall-mounted furnace; after ignition, a flame current signal is transmitted to an ignition electrode terminal 23 through a wire by a single-needle ignition needle of the wall-mounted furnace, the flame current signal is received by the ignition electrode terminal 23 and is transmitted to a flame signal processing circuit 24 for detecting the flame current through a power supply and feedback terminal 21 to be processed, and the processed signal is transmitted to a controller by the flame signal processing circuit 24. It should be noted that the controller is installed on the wall-mounted boiler, the controller 8 is an MCU, and the model of the MCU is rasha C908. Promote the pulse ignition ware integrated level through this scheme, realize the purpose of single needle ignition and examining fire to can effectively reduce the ignition, examine fire needle and electric wire quantity, both save material cost and simplify the installation procedure, can optimize the risk that the connection of electric lines avoids connecing wrong line again simultaneously. It should be noted that the single-needle pulse ignition fire detection device can achieve the purpose of igniting and detecting fire through the single-needle ignition needle, and can also be used for the condition of igniting and detecting fire through the double needles without separately arranging the fire detection needle. In addition, the power supply and feedback terminal 21 is designed as an integrated structure, which can effectively improve the production efficiency. According to the structural requirement of the wall-mounted furnace, the number of the ignition electrode terminals 23 on the ignition circuit board 2 can be two, the two ignition electrodes are respectively connected with two ignition needles of the wall-mounted furnace, and during ignition, discharge is formed between the two ignition needles to form high-voltage arc for ignition, rather than the high-voltage arc formed by casing discharge for ignition.
Wherein, the two opposite side walls of the ignition device upper shell 3 are provided with a buckle structure 5, and the ignition device bottom shell 3 is convexly provided with a clamping block 6 matched with the buckle structure 5. Ignition upper shell 1 and ignition drain pan 3 adopt buckle structure 5 and fixture block structure 6 to be connected, can make things convenient for installing between them and dismantle to be convenient for place ignition circuit board 2 in ignition upper shell 1 and ignition drain pan 3 cavity 4 that forms.
As shown in fig. 4, the ignition circuit board 2 further includes a ground terminal 25, and the ground terminal 25 is in contact with the wall-mounted furnace casing to form a direct ground. The grounding terminal 25 is welded with the ignition circuit board 2, and is in contact with the arm hanging furnace shell through the grounding terminal 25 to form direct grounding, so that the ignition circuit board is reliably grounded, and the safe and reliable operation of the ignition circuit board 2 is ensured.
As shown in fig. 6, the ground terminal 25 includes a first folded plate 251 and a second folded plate 252, the first folded plate 251 and the second folded plate 252 form an L-shaped structure, the first folded plate 251 is used for connecting with the ignition circuit board 2, the second folded plate 252 is provided with a through hole structure 253, the second folded plate 252 is provided with a hook structure 254, and the hook structure 254 is provided with a slot structure 255. The provision of the through-hole structure 253 facilitates the mounting of the earth terminal 25 on the wall-mounted furnace housing by means of screws. The hook structure 254 can be connected to the ignition device bottom case 3, thereby achieving a secure attachment between the ground terminal 25 and the ignition device bottom case 3. The slot 255 increases the elasticity of the hook 254, so that the hook 254 is elastically deformed when connected to the bottom housing 3 of the ignition device.
Wherein, the ignition device bottom shell 3 is provided with a thread mounting structure 7, the thread mounting structure comprises a mounting block 71 convexly arranged on the side wall of the ignition device bottom shell, a threaded hole 72 arranged on the mounting block 71 and a jack structure 73 used for extending a first folding plate 251 of the grounding terminal 25 into the cavity structure 4; the end face of the mounting block 71 is flush with the end face of the ignition bottom case 3. In the embodiment, the grounding terminal 25, the ignition device bottom shell 3 and the wall-hanging stove body are fixed together by the screw thread mounting structure 7 and screws or bolts, so that effective grounding is achieved, and the number of grounding wires is reduced.
In addition, a groove structure 74 for fixing the second flap 252 is disposed on the bottom surface of the mounting block 71, and the groove structure 74 is matched with the second flap 252. The recess structure 74 can position the second flap 252, on the one hand, and can enable the bottom surface of the second flap 252 mounted on the mounting block 71 to be flush with the bottom of the ignition device bottom shell 3, on the other hand, ensuring the firmness of the connection between the ignition device bottom shell 3 and the wall-mounted furnace shell when the ignition device bottom shell 3 is mounted on the wall-mounted furnace shell.
Wherein, an opening structure 75 for fixing the hook structure 254 is provided on the bottom surface of the mounting block 71. The hook structure 254 is inserted into the opening structure 75, so that the hook structure 254 is clamped in the opening structure 75, thereby ensuring the reliability of connection between the grounding terminal 25 and the ignition device bottom case 3 and preventing the grounding terminal 25 from shaking in the using process.
As shown in fig. 1, the high-voltage discharge circuit 22 includes a resistor R1, a resistor R2, a diode D2, a capacitor C1, a diac D3, a diac D4, and a high-voltage package T1, wherein one end of the resistor R1 is connected to the first terminal of the power supply and feedback terminal 21, the other end of the resistor R1 is connected to the anode of the diode D2, the cathode of the diode D2 is connected to one end of the capacitor C1 and one end of the diac D3, the other end of the diac D3 is connected to one end of the primary winding of the high-voltage package T1, the other end of the primary winding of the high-voltage package T1 is connected to the other end of the capacitor C1 and one end of the resistor R2, and the other end of the resistor R2 is connected to the second terminal of; one end of the secondary winding of the high voltage pack T1 is connected to the ignition electrode terminal, one end of the diac D is electrically connected to the third terminal of the power supply and feedback terminal 21, and the other end of the secondary winding of the high voltage pack T1 and the other end of the diac D are both grounded.
The flame signal processing circuit 24 comprises a resistor R3, a resistor R4, a resistor R5, a resistor R6, a resistor R7, a capacitor C2, a capacitor C3 and a transformer T2, wherein one end of the resistor R7 is electrically connected to the third terminal of the power supply and feedback terminal 21, the other end of the resistor R7 is connected to one end of the resistor R6 and one end of the capacitor C3, the other end of the resistor R6 is connected to one end of the resistor R5, the other end of the resistor R5 is connected to one end of the capacitor C2, one end of the resistor R3, one end of the resistor R4 and the controller 8, the other end of the resistor R3 is connected to the 5V power supply, the other end of the capacitor C3 is connected to one end of the secondary side of the transformer T2, the other end of the secondary side of the transformer T2, the other end of the capacitor C2 and the other end of the resistor R4 are all.
Example 2
A wall-mounted furnace adopts the single-needle pulse ignition fire detection device in the embodiment 1.
It is obvious that the above embodiments of the present invention are only examples for clearly illustrating the present invention, and are not limitations to the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.
Claims (10)
1. The single-needle pulse ignition fire detection device is characterized by comprising a power supply and feedback terminal (21), a high-voltage discharge circuit (22) and an ignition electrode terminal (23) which are electrically connected in sequence, wherein the power supply and feedback terminal (21) is also electrically connected with a flame signal processing circuit (24) for detecting flame current, the flame signal processing circuit (24) is electrically connected with a controller (8), and the ignition electrode terminal (23) is connected with a single-needle ignition needle (9) on a wall-mounted furnace through a wire.
2. A single needle pulse ignition fire detection device as defined in claim 1, wherein: the high-voltage discharge circuit (22) comprises a resistor R1, a resistor R2, a diode D2, a capacitor C1, a diac D3, a diac D4 and a high-voltage package T1, wherein one end of the resistor R1 is connected with a first terminal of the power supply and feedback terminal (21), the other end of the resistor R1 is connected with the anode of a diode D2, the cathode of the diode D2 is connected with one end of the capacitor C1 and one end of the diac D3, the other end of the diac D3 is connected with one end of a primary winding of the high-voltage package T1, the other end of the primary winding of the high-voltage package T1 is connected with the other end of the capacitor C1 and one end of the resistor R2, and the other end of the resistor R2 is connected with a second terminal of the power supply and feedback terminal (21); one end of the secondary winding of the high-voltage pack T1 is connected with the ignition electrode terminal (23), one end of the diac D4 is electrically connected with the third terminal of the power supply and feedback terminal (21), and the other end of the secondary winding of the high-voltage pack T1 and the other end of the diac D4 are both grounded.
3. A single needle pulse ignition fire detection device as defined in claim 2, wherein: the flame signal processing circuit (24) comprises a resistor R3, a resistor R4, a resistor R5, a resistor R6, a resistor R7, a capacitor C2, a capacitor C3 and a transformer T2, wherein one end of the resistor R7 is electrically connected with a third terminal of a power supply and feedback terminal (21), the other end of the resistor R7 is connected with one end of the resistor R6 and one end of the capacitor C3, the other end of the resistor R6 is connected with one end of the resistor R5, the other end of the resistor R5 is connected with one end of the capacitor C2, one end of the resistor R3, one end of the resistor R4 and a controller (8), the other end of the resistor R3 is connected with a 5V power supply, the other end of the capacitor C3 is connected with one end of a secondary side of a transformer T2, the other end of the secondary side of the transformer T2, the other end of the capacitor C2 and the other end of the resistor R4 are all grounded, and a primary side of the transformer T2.
4. A single needle pulse ignition fire detection device according to any one of claims 1 to 3, wherein: the power supply and feedback terminal (21), the high-voltage discharge circuit (22) and the ignition electrode terminal (23) are integrated on the ignition circuit board (2), and the ignition circuit board (2) is arranged in a cavity (4) formed by the ignition device upper shell (1) and the ignition device bottom shell (3).
5. A single needle pulse ignition fire detection device according to claim 4, wherein: the ignition device is characterized in that clamping structures (5) are arranged on two opposite side walls of the ignition device upper shell (1), and clamping blocks (6) matched with the clamping structures (5) are convexly arranged on the ignition device bottom shell (3).
6. A single needle pulse ignition fire detection device according to claim 5, wherein: ignition circuit board (2) still include ground terminal (25), ground terminal (25) and hanging stove casing contact form direct ground connection.
7. A single needle pulse ignition fire detection device according to claim 6, wherein: the grounding terminal (25) comprises a first folded plate (251) and a second folded plate (252), the first folded plate (251) and the second folded plate (252) form an L-shaped structure, the first folded plate (251) is used for being connected with an ignition circuit board (2), a through hole structure (253) is arranged on the second folded plate (252), a clamping hook structure (254) is arranged on the second folded plate (252), and a slotting structure (255) is arranged on the clamping hook structure (254).
8. A single needle pulse ignition fire detection device according to claim 4, wherein: a thread mounting structure (7) is arranged on the ignition device bottom shell (3), and the thread mounting structure (7) comprises a mounting block (71) convexly arranged on the side wall of the ignition device bottom shell (3), a threaded hole (72) arranged on the mounting block (71), and a jack structure (73) used for a first folded plate (251) of the grounding terminal (25) to stretch into the cavity (4); the end face of the mounting block (71) is flush with the end face of the ignition device bottom shell (3).
9. A single needle pulse ignition fire detection device as defined in claim 8, wherein: a groove structure (74) for fixing a second folded plate (252) is arranged on the bottom surface of the mounting block (71), and the groove structure (74) is matched with the second folded plate (252); an opening structure (75) used for fixing the clamping hook structure (254) is arranged on the bottom surface of the mounting block (71).
10. A hanging stove which characterized in that: the wall-hanging stove adopts the single-needle pulse ignition fire detection device as defined in any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921450243.XU CN210801261U (en) | 2019-08-31 | 2019-08-31 | Single-needle pulse ignition fire detection device and wall-mounted furnace thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921450243.XU CN210801261U (en) | 2019-08-31 | 2019-08-31 | Single-needle pulse ignition fire detection device and wall-mounted furnace thereof |
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| CN210801261U true CN210801261U (en) | 2020-06-19 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113446624A (en) * | 2021-06-30 | 2021-09-28 | 黄俊融 | Single-needle ignition and fire detection two-in-one circuit and control method |
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2019
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113446624A (en) * | 2021-06-30 | 2021-09-28 | 黄俊融 | Single-needle ignition and fire detection two-in-one circuit and control method |
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