Heater and control circuit board thereof

Abstract

The utility model discloses a heater and a control circuit board thereof. A power supply output end of a power supply structure in the control circuit board is electrically connected with a first power supply end of a first control structure, a second power supply end of a second control structure and a third power supply end of an alarm structure respectively; the power supply structure, the first control structure and the first switch structure are arranged along a first direction, and the first control structure and the second control structure are arranged along a second direction; the first control structure and the first switch structure are arranged along a first direction; the second control structure and the second switch structure are arranged along the first direction; the first switch structure and the second switch structure are arranged along a second direction; in the second direction, the signal transmission structure is located between the first control structure and the second control structure; the first alarm output end of the first control structure and the second alarm output end of the second control structure are electrically connected with the alarm input end of the alarm structure. In the second direction, the alarm structure is located between the first control structure and the second control structure.

Description

Technical Field

[0001] The utility model relates to the technical field of electrical control, in particular to a heater and a control circuit board thereof. Background Art

[0002] In the factory production process, in order to control the medium to maintain a constant temperature when passing through the pipeline and other equipment, thereby ensuring the stability of the production process, setting up a temperature control box in the heating box is an effective solution. The heating box is mainly composed of a temperature controller, a power driver and a temperature measuring device.

[0003] Currently, there are many electrical components in the heating box, which occupies more space in the cabinet, increases the hardware cost, and consumes time and manpower costs in assembly. Secondly, the cumbersome wiring process also increases the error rate of the finished product. Utility Model Content

[0004] The utility model provides a heater and a control circuit board thereof, so as to avoid the situation where assembly errors are caused by manual assembly, reduce costs, improve the preparation reliability of the control circuit board, and improve the use reliability of the heater.

[0005] In a first aspect, the utility model provides a control circuit board of a heater, comprising: a power supply structure, a signal transmission structure, an alarm structure, a first control structure, a second control structure, a first switch structure, and a second switch structure;

[0006] The power supply input end of the power supply structure is electrically connected to the power supply end, and the power supply output end of the power supply structure is electrically connected to the first power supply end of the first control structure, the second power supply end of the second control structure, and the third power supply end of the alarm structure respectively; the power supply structure, the first control structure and the first switch structure are arranged along a first direction, and the first control structure and the second control structure are arranged along a second direction; wherein the first direction is perpendicular to the second direction;

[0007] The first switch output end of the first control structure is electrically connected to the first switch control end of the first switch structure, the second switch output end of the second control structure is electrically connected to the second switch control end of the second switch structure, the first switch structure is electrically connected to the first power supply end and the first heating component respectively, and the second switch structure is electrically connected to the second power supply end and the second heating component respectively; the first control structure and the first switch structure are arranged along the first direction; the second control structure and the second switch structure are arranged along the first direction; the first switch structure and the second switch structure are arranged along the second direction;

[0008] The signal input end of the signal transmission structure is electrically connected to the signal providing end, and the signal output end of the signal transmission structure is electrically connected to the first control structure and the second control structure; along the second direction, the signal transmission structure is located between the first control structure and the second control structure;

[0009] The first alarm output end of the first control structure and the second alarm output end of the second control structure are electrically connected to the alarm input end of the alarm structure respectively; along the second direction, the alarm structure is located between the first control structure and the second control structure.

[0010] Optionally, the first switch structure includes a first switch and a second switch, and the second switch structure includes a third switch and a fourth switch;

[0011] The control circuit board also includes: a switch control structure;

[0012] The second switch is electrically connected between the first power supply terminal and the first switch, the first switch output terminal of the first control structure is electrically connected to the control terminal of the first switch, and the second switch control signal output terminal of the switch control structure is electrically connected to the control terminal of the second switch;

[0013] The fourth switch is electrically connected between the second power supply terminal and the third switch, the second switch output terminal of the second control structure is electrically connected to the control terminal of the third switch, and the fourth switch control signal output terminal of the switch control structure is electrically connected to the control terminal of the fourth switch;

[0014] The power supply output end of the power supply structure is also electrically connected to the fourth power supply providing end of the switch control structure; along the second direction, the switch control structure is located between the second switch and the fourth switch.

[0015] Optionally, the control circuit board further includes: a first alarm switch and a second alarm switch;

[0016] The first alarm output end of the first control structure is electrically connected to the control end of the first alarm switch, the second alarm output end of the second control structure is electrically connected to the control end of the second alarm switch, and the output end of the first alarm switch and the output end of the second alarm switch are electrically connected to the alarm input end of the alarm structure respectively.

[0017] Optionally, the signal transmission structure includes a first temperature signal input terminal, a second temperature signal input terminal, a first temperature signal output terminal and a second temperature signal output terminal;

[0018] The first temperature signal input terminal is electrically connected to the first temperature signal providing terminal, and the first temperature signal output terminal is electrically connected to the first control structure;

[0019] The second temperature signal input terminal is electrically connected to the second temperature signal providing terminal, and the second temperature signal output terminal is electrically connected to the second control structure.

[0020] Optionally, the signal transmission structure includes a communication signal input terminal and a communication signal output terminal;

[0021] The communication signal input end is electrically connected to the controller, and the communication signal output end is electrically connected to the first communication signal receiving end of the first control structure and the second communication signal receiving end of the second control structure respectively.

[0022] Optionally, the control circuit board further includes: a first display and a second display;

[0023] The first display signal input terminal of the first display is electrically connected to the first display signal output terminal of the first control structure, and the second display signal input terminal of the second display is electrically connected to the second display signal output terminal of the second control structure.

[0024] Optionally, the control circuit board further includes: a wiring structure;

[0025] The first signal input end of the wiring structure is electrically connected to the first signal output end of the first switch structure, and the first signal output end of the wiring structure is electrically connected to the input end of the first heating component;

[0026] The second signal input end of the wiring structure is electrically connected to the second signal output end of the second switch structure, and the second signal output end of the wiring structure is electrically connected to the input end of the second heating component.

[0027] Optionally, the wiring structure further includes: an alarm signal input terminal and an alarm signal output terminal;

[0028] The alarm signal input terminal is electrically connected to the alarm signal providing terminal, and the alarm signal output terminal is electrically connected to the alarm input terminal of the alarm structure.

[0029] Optionally, the control circuit board further includes: a first jumper structure and a second jumper structure;

[0030] The first adjustment end of the first jumper structure is electrically connected to the first sensor port of the signal transmission structure, and the second adjustment end of the second jumper structure is electrically connected to the second sensor port of the signal transmission structure;

[0031] The first jumper structure and the second jumper structure are arranged along the second direction, the first jumper structure, the second control structure and the second switch structure are arranged along the first direction, and the second jumper structure, the second control structure and the second switch structure are arranged along the first direction.

[0032] In a second aspect, the utility model further provides a heater, comprising a control circuit board of the heater described in the first aspect.

[0033] The technical solution of the utility model is to arrange the power supply structure, the first control structure and the first switch structure along the first direction, the second control structure and the second switch structure along the first direction, the first control structure and the second control structure along the second direction, the first switch structure and the second switch structure along the second direction, and the signal transmission structure and the alarm structure are located between the first control structure and the second control structure along the second direction. In this way, the electrical connection path between the structures can be shortened, the overall structure and size of the control circuit board can be reduced, the space utilization rate of the control circuit board can be improved, and the occupancy rate of the internal space of the heater by electrical components can be reduced, thereby saving space. In addition, the electrical components inside each structure are integrated into the control circuit board, so as to avoid assembly errors caused by manual assembly, reduce costs, improve the preparation reliability of the control circuit board, and improve the use reliability of the heater. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] In order to more clearly illustrate the technical solutions in the embodiments of the utility model or the prior art, the drawings required for use in the embodiments or the prior art descriptions are briefly introduced below. Obviously, although the drawings described below are some specific embodiments of the utility model, for those skilled in the art, the basic concepts of the device structure, driving method and manufacturing method disclosed and suggested by the various embodiments of the utility model can be expanded and extended to other structures and drawings. Undoubtedly, these should all be within the scope of the claims of the utility model.

[0035] Figure 1 A schematic diagram of the structure of a control circuit board of a heater provided by an embodiment of the utility model;

[0036] Figure 2 A schematic diagram of the structure of another control circuit board of a heater provided in an embodiment of the utility model;

[0037] Figure 3 A schematic diagram of a switch control structure provided by an embodiment of the utility model;

[0038] Figure 4 A schematic diagram of a switch control structure and a circuit structure of a second switch and a fourth switch provided in an embodiment of the utility model;

[0039] Figure 5 A schematic diagram of the structure of a control circuit board of another heater provided in an embodiment of the utility model;

[0040] Figure 6 A schematic diagram of an alarm structure provided by an embodiment of the utility model;

[0041] Figure 7 A schematic diagram of the circuit structure of an alarm switch and an alarm structure provided by an embodiment of the utility model;

[0042] Figure 8 A schematic diagram of the structure of a control circuit board of another heater provided in an embodiment of the utility model;

[0043] Fig. 9 A schematic diagram of the structure of a control circuit board of a heater provided by an embodiment of the utility model;

[0044] Fig.10 A schematic diagram of the structure of another control circuit board of a heater provided in an embodiment of the utility model;

[0045] Fig.11 A schematic diagram of the structure of a control circuit board of another heater provided in an embodiment of the utility model;

[0046] Fig.12 A schematic structural diagram of a control circuit board of another heater provided in an embodiment of the utility model. DETAILED DESCRIPTION

[0047] In order to make the purpose, technical solution and advantages of the utility model clearer, the following will refer to the drawings in the embodiments of the utility model to clearly and completely describe the technical solution of the utility model through the implementation method. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the basic concepts disclosed and suggested by the embodiments of the utility model, all other embodiments obtained by those skilled in the art are within the scope of protection of the utility model.

[0048] Figure 1 A schematic diagram of the structure of a control circuit board of a heater provided by an embodiment of the utility model, such as Figure 1As shown, the control circuit board 100 of the heater includes a power supply structure 10, a signal transmission structure 20, an alarm structure 30, a first control structure 41, a second control structure 42, a first switch structure 50 and a second switch structure 60; the power supply input end of the power supply structure 10 is electrically connected to the power supply end P0, and the power supply output end of the power supply structure 10 is electrically connected to the first power supply end of the first control structure 41, the second power supply end of the second control structure 42, and the third power supply end of the alarm structure 30 respectively; the power supply structure 10, the first control structure 41 and the first switch structure 50 are arranged along a first direction X, and the first control structure 41 and the second control structure 42 are arranged along a second direction Y; wherein the first direction X is perpendicular to the second direction Y; the first switch output end SO1 of the first control structure 41 is electrically connected to the first switch control end SC1 of the first switch structure 50, the second switch output end SO2 of the second control structure 42 is electrically connected to the second switch control end SC2 of the second switch structure 60, The first switch structure 50 is electrically connected to the first power supply terminal P1 and the first heating component H1 respectively, and the second switch structure 60 is electrically connected to the second power supply terminal P2 and the second heating component H2 respectively; the first control structure 41 and the first switch structure 50 are arranged along the first direction X; the second control structure 42 and the second switch structure 60 are arranged along the first direction X; the first switch structure 50 and the second switch structure 60 are arranged along the second direction Y; the signal input end of the signal transmission structure 20 is electrically connected to the signal supply end Sg, and the signal output end of the signal transmission structure 20 is electrically connected to the first control structure 41 and the second control structure 42; along the second direction Y, the signal transmission structure 20 is located between the first control structure 41 and the second control structure 42; the first alarm output end of the first control structure 41 and the second alarm output end of the second control structure 42 are electrically connected to the alarm input end of the alarm structure 30 respectively; along the second direction Y, the alarm structure 30 is located between the first control structure 41 and the second control structure 42.

[0049] Among them, the power supply structure 10 includes devices such as fuses, the signal transmission structure 20 can transmit the signal provided by the signal input end to the first control structure 41 and / or the second control structure 42, so that the first control structure 41 and / or the second control structure 42 perform corresponding operations according to the signal provided by the signal providing end Sg, the alarm structure 30 includes a buzzer or an alarm indicator light, the first control structure 41 and the second control structure 42 can include processing devices, etc., which can be set according to actual needs, and no specific limitations are made here. The first switch structure 50 and the second switch structure 60 include switching devices such as relays.

[0050] Specifically, the power supply terminal P0 can be provided by a mains power supply, and the power supply structure 10 can provide the power provided by the power supply terminal P0 to the first control structure 41, the second control structure 42 and the alarm structure 30, so as to facilitate the operation of the first control structure 41, the second control structure 42 and the alarm structure 30. The signal providing terminal Sg can provide a first temperature signal near the first heating component H1 and a second temperature signal near the second heating component H2, etc. The signal transmission structure 20 can transmit the first temperature signal to the first control structure 41 and the second temperature signal to the second control structure 42. Based on the first temperature signal, the first control structure 41 can adjust the switch control signal provided to the first switch structure 50 and the first alarm signal provided to the alarm structure 30 according to the internal control logic, and based on the second temperature signal, the second control structure 42 can adjust the switch control signal provided to the second switch structure 60 and the second alarm signal provided to the alarm structure 30 according to the internal control logic.

[0051] Exemplarily, based on the first temperature signal, the first control structure 41 adjusts the control logic of the switch control signal provided to the first switch structure 50 as follows: the first control structure 41 includes a first set temperature. When the first temperature signal is lower than the first set temperature, the first control structure 41 can output a switch control signal to the first switch structure 50 to control the first switch structure 50 to be turned on, so that the first switch structure 50 can transmit the electrical signal of the first power supply terminal P1 to the first heating component H1, thereby enabling the first heating component H1 to output heat energy; when the first temperature signal is higher than the first set temperature, the first control structure 41 can output a switch control signal to the first switch structure 50 to control the first switch structure 50 to be turned off, so that the first switch structure 50 cannot transmit the electrical signal of the first power supply terminal P1 to the first heating component H1, and the first heating component H1 stops heating; in this way, the first switch structure 50 can adjust the working state of the first heating component H1 according to the first temperature signal provided by the signal transmission structure 20, so that the medium temperature around the first heating component H1 is equal to or close to the set temperature, thereby improving the control reliability of the heater.

[0052] Based on the first temperature signal, the first control structure 41 adjusts the control logic of the first alarm signal provided to the alarm structure 30 as follows: when the first temperature signal is higher than the first set temperature, and the first difference between the first temperature signal and the first set temperature is greater than the first preset difference, it indicates that the first heating component H1 is operating abnormally, etc. At this time, the first control structure 41 can send a first alarm signal to the control alarm structure 30 to send an alarm signal to the alarm structure 30, so that the alarm structure 30 sends an alarm signal to provide maintenance personnel with a way to inspect the heater, prevent the heater from operating abnormally, and improve the working safety of the heater.

[0053] It can be understood that the above description only uses the signal transmission structure 20 transmitting the temperature signal as an example. The signal transmission structure 20 can also transmit other types of signals. For example, the signal transmission structure 20 can also provide signals from the remote control terminal, etc., which is not specifically limited here.

[0054] The technical solution of the embodiment of the utility model is to arrange the power supply structure, the first control structure and the first switch structure along the first direction, the second control structure and the second switch structure along the first direction, the first control structure and the second control structure along the second direction, and the first switch structure and the second switch structure along the second direction. Along the second direction, the signal transmission structure and the alarm structure are located between the first control structure and the second control structure. In this way, the electrical connection path between the structures can be shortened, the overall structure and size of the control circuit board can be reduced, the space utilization rate of the control circuit board can be improved, and the occupancy rate of the internal space of the heater by electrical components can be reduced, thereby saving space. In addition, the electrical components inside each structure are integrated into the control circuit board, so as to avoid assembly errors caused by manual assembly, reduce costs, improve the preparation reliability of the control circuit board, and improve the use reliability of the heater.

[0055] Optional, Figure 2 A schematic diagram of the structure of another control circuit board of a heater provided in an embodiment of the utility model, Figure 3 A schematic diagram of a switch control structure provided by an embodiment of the utility model is shown in FIG. Figure 4 A schematic diagram of a switch control structure and a circuit structure of a second switch and a fourth switch provided in an embodiment of the utility model, referring to Figure 2-Figure 4 , the first switch structure 50 includes a first switch 51 and a second switch 52, and the second switch structure 60 includes a third switch 61 and a fourth switch 62; the control circuit board 100 also includes a switch control structure 70; the second switch 52 is electrically connected between the first power supply terminal P1 and the first switch 51, the first switch output terminal SO1 of the first control structure 41 is electrically connected to the control end of the first switch 51, and the second switch control signal output terminal of the switch control structure 70 is electrically connected to the control end of the second switch 52; the fourth switch 62 is electrically connected between the second power supply terminal P2 and the third switch 61, the second switch output terminal SO2 of the second control structure 42 is electrically connected to the control end of the third switch 61, and the fourth switch control signal output terminal of the switch control structure 70 is electrically connected to the control end of the fourth switch 62; the power supply output terminal of the power supply structure 10 is also electrically connected to the fourth power supply terminal of the switch control structure 70; along the second direction Y, the switch control structure 70 is located between the second switch 52 and the fourth switch 62.

[0056] Among them, the first switch 51 and the second switch 52 include switch devices such as contactors, and the switch control structure 70 includes switch devices such as knife switches, which can be set according to actual needs and are not specifically limited here.

[0057] Specifically, the power supply structure 10 can provide the switch control structure 70 with the electrical signal required for operation, so that when the switch device in the switch control structure 70 is actuated, the second switch control signal can be provided to the second switch 52, and the fourth switch control signal can be provided to the fourth switch 62, so that the second switch 52 adjusts the current on or off state according to the second switch control signal, so as to control the electric energy of the first power supply terminal P1 to be transmitted to the first switch 51 through the second switch 52, and the fourth switch 62 adjusts the current on or off state according to the fourth switch control signal, so as to control the electric energy of the second power supply terminal P2 to be transmitted to the third switch 61 through the fourth switch 62. Along the second direction Y, the switch control structure 70 is located between the second switch 52 and the fourth switch 62, which can shorten the electrical connection path between the switch control structure 70 and the second switch 52 and the fourth switch 62, reduce the overall structure and size of the control circuit board, and improve the space utilization rate of the control circuit board.

[0058] Understandably, reference Figure 3 The switch control structure 70 includes a first action switch SB1_F, a second action switch SB2_F, a first indicator light SB1, and a second indicator light SB2. The first action switch SB1_F and the second action switch SB2_F can be manually or machine controlled, which is not specifically limited here. When the first action switch SB1_F and the second action switch SB2_F are manually controlled, the first action switch SB1_F, the second action switch SB2_F, the first indicator light SB1, and the second indicator light SB2 are all located outside the heater for easy manual control and observation. The first action switch SB1_F and the first indicator light SB1 are connected in series, so that when the first action switch SB1_F is turned on, the first indicator light SB2 is illuminated, and the second action switch SB2_F and the second indicator light SB2 are connected in series, so that when the second action switch SB2_F is turned on, the second indicator light SB2 is illuminated. In this way, whether the circuit is normally connected or the circuit board is normally working can be judged by whether the first indicator light SB1 and the second indicator light SB2 are illuminated. Figure 3 Only one specific structure of the switch control structure 70 is shown in the figure. The specific structure of the switch control structure 70 may be other structures and may be set according to actual needs, which is not specifically limited here.

[0059] It should be noted that when the switch control structure 70 includes the first action switch SB1_F, the second action switch SB2_F, the first indicator light SB1 and the second indicator light SB2, the electrical connection lines between the switch control structure 70 and the second switch 52 and the fourth switch 62 can also be set according to actual needs. For example, refer to Figure 4 , the second switch 52 includes a contactor KM1, the fourth switch 62 includes a contactor KM2, a first end of the first action switch SB1_F is electrically connected to the first power supply terminal P1, a second end of the first action switch SB1_F is electrically connected to one end of the contactor KM1, the other end of the contactor KM1 is electrically connected to the first switch 51, the first indicator light SB1 is connected in parallel with the contactor KM1, a first end of the second action switch SB2_F is electrically connected to the second power supply terminal P2, a second end of the second action switch SB2_F is electrically connected to one end of the contactor KM2, and the contactor KM2 The other end is electrically connected to the third switch 61, and the second indicator light SB2 is connected in parallel with the contactor KM2. When the first action switch SB1_F is turned on, the contactor KM1 is energized and turned on; when the first action switch SB1_F is turned off, the contactor KM1 is de-energized and disconnected; when the second action switch SB2_F is turned on, the contactor KM2 is energized and turned on; when the second action switch SB2_F is turned off, the contactor KM2 is de-energized and disconnected. In this way, the conduction or disconnection of the second switch 52 and the fourth switch 62 can be controlled by the switch control structure 70, thereby improving the control reliability of the control circuit board.

[0060] Optional, Figure 5 A schematic diagram of the structure of a control circuit board of another heater provided in an embodiment of the utility model, Figure 6 A schematic diagram of an alarm structure provided by an embodiment of the utility model, Figure 7 A schematic diagram of the circuit structure of an alarm switch and an alarm structure provided by an embodiment of the utility model, referring to Figure 5-Figure 7 The control circuit board 100 also includes a first alarm switch 81 and a second alarm switch 82; the first alarm output end of the first control structure 41 is electrically connected to the control end of the first alarm switch 81, the second alarm output end of the second control structure 42 is electrically connected to the control end of the second alarm switch 82, and the output end of the first alarm switch 81 and the output end of the second alarm switch 82 are electrically connected to the alarm input end of the alarm structure 30 respectively.

[0061] Among them, the first alarm switch 81 and the second alarm switch 82 include switching devices such as relays, which can be set according to actual needs. Exemplarily, the first alarm switch 81 includes an intermediate relay KA1, and the second alarm switch 82 includes an intermediate relay KA2. It can also be other types, which are not specifically limited here.

[0062] Specifically, a first alarm switch 81 is set between the first control structure 41 and the alarm structure 30, so that the first control structure 41 controls the alarm state of the alarm structure 30 through the first alarm switch 81, thereby improving the control reliability; and a second alarm switch 82 is set between the second control structure 42 and the alarm structure 30, so that the second control structure 42 controls the alarm state of the alarm structure 30 through the second alarm switch 82, thereby improving the control reliability.

[0063] Understandably, reference Figure 6 The alarm structure 30 includes an alarm indicator light HB1, an alarm buzzer HB2 and a mute switch SA1_F. The alarm indicator light HB1, the alarm buzzer HB2 and the mute switch SA1_F are connected to the port at the location of the alarm structure 30 through a wiring harness. The alarm buzzer HB2 and the mute switch SA1_F are connected in series. The mute switch SA1_F is located outside the heater. When the buzzing sound of the alarm buzzer HB2 needs to be eliminated, the mute switch SA1_F can be manually controlled to be in a disconnected state, so that the alarm buzzer HB2 loses power and stops making a buzzing sound, so that maintenance personnel can handle the fault in a quiet environment. After the fault is handled, the mute switch SA1_F is reset to wait for the next alarm trigger. In addition, the alarm structure 30 also has a reserved port so that when other functions need to be realized in the future, there is no need to re-make the control circuit board, thereby improving the scalability of the control circuit board.

[0064] It should be noted that the reference Figure 7The first alarm switch 81 includes an intermediate contactor KA1, the second alarm switch 82 includes an intermediate contactor KA2, the alarm structure 30 includes an alarm indicator light HB1, an alarm buzzer HB2 and a mute switch SA1_F, the mute switch SA1_F is in a normally closed state, one end of the intermediate contactor KA1 is electrically connected to the first alarm output end of the first control structure 41, and the other end of the intermediate contactor KA1 is electrically connected to the first end of the mute switch SA1_F and the first end of the alarm indicator light HB1, so that when the intermediate contactor KA1 is in the disconnected state, the alarm buzzer HB2 is powered off and stops emitting a buzzing sound, and the alarm indicator light HB1 is powered off and stops emitting light, When the intermediate contactor KA1 is in the on state, the alarm buzzer HB2 is energized to emit a buzzing sound, and the alarm indicator light HB1 is energized to emit light; one end of the intermediate contactor KA2 is electrically connected to the second alarm output end of the second control structure 42, and the other end of the intermediate contactor KA2 is electrically connected to the first end of the mute switch SA1_F and the first end of the alarm indicator light HB1, respectively, so that when the intermediate contactor KA1 is in the off state, the alarm buzzer HB2 is powered off and stops emitting a buzzing sound, and the alarm indicator light HB1 is powered off and stops emitting light, and when the intermediate contactor KA2 is in the on state, the alarm buzzer HB2 is energized to emit a buzzing sound, and the alarm indicator light HB1 is energized to emit light. In addition, by setting the silencer switch SA1_F between the intermediate contactor KA1 and the alarm buzzer HB2, and between the intermediate contactor KA2 and the alarm buzzer HB2, when the silencer switch SA1_F is in the disconnected state, the on or off state of the intermediate contactor KA1 and the intermediate contactor KA2 will not affect the power off of the alarm buzzer HB2, thereby improving the control reliability of the silencer switch SA1_F on the alarm buzzer HB2. The electrical connection structure of the first alarm switch 81, the second alarm switch 82 and the alarm structure 30 can also be other, which is not specifically limited here.

[0065] Optional, Figure 8 A schematic diagram of the structure of a control circuit board of another heater provided in an embodiment of the utility model is shown as follows: Figure 8 As shown, the signal transmission structure 20 includes a first temperature signal input terminal ti1, a second temperature signal input terminal ti2, a first temperature signal output terminal to1 and a second temperature signal output terminal to2; the first temperature signal input terminal ti1 is electrically connected to the first temperature signal providing terminal Sg1, and the first temperature signal output terminal to1 is electrically connected to the first control structure 41; the second temperature signal input terminal ti2 is electrically connected to the second temperature signal providing terminal Sg2, and the second temperature signal output terminal to2 is electrically connected to the second control structure 42.

[0066] The first temperature signal providing terminal Sg1 is used to provide a temperature signal near the first heating component H1, and the second temperature signal providing terminal Sg2 is used to provide a temperature signal near the second heating component H2.

[0067] Specifically, a first temperature sensor may be arranged around the first heating component H1, and the first temperature sensor transmits the acquired first temperature signal to the first temperature signal providing terminal Sg1, and then transmits it to the first control structure 41 through the signal transmission structure 20, so that the first control structure 41 adjusts the switch control signal provided to the first switch structure 50 and the first alarm signal provided to the alarm structure 30 based on the first temperature signal according to the internal control logic. Correspondingly, a second temperature sensor may be arranged around the second heating component H2, and the second temperature sensor transmits the acquired second temperature signal to the second temperature signal providing terminal Sg2, and then transmits it to the second control structure 42 through the signal transmission structure 20, so that the second control structure 42 adjusts the switch control signal provided to the second switch structure 60 and the second alarm signal provided to the alarm structure 30 based on the second temperature signal according to the internal control logic, thereby improving the temperature control accuracy of the heater.

[0068] Optional, Fig. 9 A schematic diagram of the structure of a control circuit board of a heater provided by an embodiment of the utility model, such as Fig. 9 As shown, the signal transmission structure 20 includes a communication signal input terminal and a communication signal output terminal; the communication signal input terminal is electrically connected to the controller 21, and the communication signal output terminal is electrically connected to the first communication signal receiving terminal of the first control structure 41 and the second communication signal receiving terminal of the second control structure 42 respectively.

[0069] The controller 21 includes a control device located at a remote end of the heater.

[0070] Specifically, the controller 21 can provide a communication signal to the signal transmission structure 20 for controlling the first switch structure 50 and / or the second switch structure 60 to be turned on or off, or a communication signal to control the alarm structure 30 to sound an alarm. The signal transmission structure 20 further processes the communication signal and converts it into a signal that can be recognized by the first control structure 41 and / or the second control structure 42, so that the first control structure 41 and / or the second control structure 42 can control the working status of the first switch structure 50, the second switch structure 60 and the alarm structure 30 according to the signal provided by the signal transmission structure 20, thereby facilitating remote control and improving the control effect of the heater.

[0071] Optional, Fig.10 A schematic diagram of the structure of another control circuit board of a heater provided by an embodiment of the utility model is shown as follows: Fig.10As shown, the control circuit board 100 also includes a first display 91 and a second display 92; the first display signal input terminal of the first display 91 is electrically connected to the first display signal output terminal of the first control structure 41, and the second display signal input terminal of the second display 92 is electrically connected to the second display signal output terminal of the second control structure 42.

[0072] The first display 91 and the second display 92 include display devices such as display panels, and can be configured according to actual needs, which are not specifically limited here.

[0073] Specifically, the first control structure 41 can provide the first preset temperature and the first temperature signal near the first heating component H1 to the first display 91, so that the first display 91 displays the first preset temperature and the first temperature signal, which is convenient for staff to observe. Correspondingly, the second control structure 42 can provide the second preset temperature and the second temperature signal near the second heating component H2 to the second display 92, so that the second display 92 displays the second preset temperature and the second temperature signal, which is convenient for staff to observe.

[0074] It can be understood that the first display 91 and the second display 92 are provided for the convenience of observation by the staff. Therefore, the first display 91 and the second display 92 are both provided outside the heater. The first display 91 can be electrically connected to the first control structure 41 through a wiring harness, and the second display 92 can be electrically connected to the second control structure 42 through a wiring harness.

[0075] Optional, Fig.11 A schematic diagram of the structure of a control circuit board of another heater provided in an embodiment of the utility model is shown as follows: Fig.11 As shown, the control circuit board 100 also includes a wiring structure 93; the first signal input terminal of the wiring structure 93 is electrically connected to the first signal output terminal of the first switch structure 50, and the first signal output terminal of the wiring structure 93 is electrically connected to the input terminal of the first heating component H1; the second signal input terminal of the wiring structure 93 is electrically connected to the second signal output terminal of the second switch structure 60, and the second signal output terminal of the wiring structure 93 is electrically connected to the input terminal of the second heating component H2.

[0076] Specifically, when the first switch structure 50 is in the on state, the first switch structure 50 transmits the first power supply signal of the first power supply terminal P1 to the wiring structure 93, and the wiring structure 93 then transmits the first power supply signal to the first heating component H1, so that the first heating component H1 outputs thermal power. By setting the wiring structure 93, the stability of the first power supply signal in the transmission process can be provided, thereby improving the working stability of the first heating component H1. Correspondingly, when the second switch structure 60 is in the on state, the second switch structure 60 transmits the second power supply signal of the second power supply terminal P2 to the wiring structure 93, and the wiring structure 93 then transmits the second power supply signal to the second heating component H2, so that the second heating component H2 outputs thermal power. By setting the wiring structure 93, the stability of the second power supply signal in the transmission process can be provided, thereby improving the working stability of the second heating component H2.

[0077] Optional, reference Fig.11 The wiring structure 93 also includes an alarm signal input terminal and an alarm signal output terminal; the alarm signal input terminal is electrically connected to the alarm signal providing terminal Sg4, and the alarm signal output terminal is electrically connected to the alarm input terminal of the alarm structure 30.

[0078] Specifically, when the heater includes multiple heating components and multiple control circuit boards, the alarm structure 30 can be set in only one of the control circuit boards, and the control structures in the other control circuit boards without the alarm structure 30 are respectively electrically connected to the alarm signal providing terminal Sg4 to provide the alarm signal providing terminal Sg4 with the alarm signal corresponding to each heating component, and the wiring structure 93 transmits the alarm signal corresponding to each heating component to the alarm structure 30 to control the alarm structure 30 to send out the alarm signal. In this way, each control circuit board shares one alarm structure 30, which improves the space utilization of the control circuit board and reduces the overall structure of the heater control circuit part.

[0079] Optional, Fig.12 A schematic diagram of the structure of a control circuit board of another heater provided in an embodiment of the utility model is shown as follows: Fig.12 As shown, the control circuit board 100 further includes a first jumper structure 43 and a second jumper structure 44; the first adjustment end of the first jumper structure 43 is electrically connected to the first sensor port of the signal transmission structure 30, and the second adjustment end of the second jumper structure 44 is electrically connected to the second sensor port of the signal transmission structure 30. The first jumper structure 43 and the second jumper structure 44 are arranged along the second direction Y, the first jumper structure 43, the second control structure 42 and the second switch structure 60 are arranged along the first direction X, and the second jumper structure 44, the second control structure 42 and the second switch structure 60 are arranged along the first direction X.

[0080] Among them, the specific structure of the first jumper structure 43 and the second jumper structure 44 can be set according to actual needs. For example, the first jumper structure 43 and the second jumper structure 44 each include three terminals, namely terminal 1, terminal 2 and terminal 3, terminal 2 and terminal 3 are electrically connected, and can also be other, which is not specifically limited here.

[0081] Specifically, when the signal transmission structure 30 is electrically connected to the temperature sensor or the like through the signal providing terminal Sg, the electrical connection method between the signal transmission structure 30 and the temperature sensor or the like can be adjusted according to the type of the sensor to improve signal transmission stability.

[0082] Based on the same utility model concept, an embodiment of the utility model provides a heater, which includes the control circuit board of the heater provided by any embodiment of the utility model, that is, it includes the technical features possessed by the above-mentioned control circuit board, and therefore has the beneficial effects of the above-mentioned control circuit board. The similarities can be referred to the above description and will not be repeated here.

[0083] Note that the above are only preferred embodiments of the present invention and the technical principles used. Those skilled in the art will understand that the present invention is not limited to the specific embodiments described herein, and that various obvious changes, readjustments, combinations and substitutions can be made by those skilled in the art without departing from the scope of protection of the present invention. Therefore, although the present invention is described in more detail through the above embodiments, the present invention is not limited to the above embodiments, and may include more other equivalent embodiments without departing from the concept of the present invention, and the scope of the present invention is determined by the scope of the appended claims.

Claims

1. A control circuit board for a heater, characterized in that: include: A power supply structure, a signal transmission structure, an alarm structure, a first control structure, a second control structure, a first switch structure, and a second switch structure; The power supply input end of the power supply structure is electrically connected to the power supply end, and the power supply output end of the power supply structure is electrically connected to the first power supply end of the first control structure, the second power supply end of the second control structure, and the third power supply end of the alarm structure respectively; the power supply structure, the first control structure and the first switch structure are arranged along a first direction, and the first control structure and the second control structure are arranged along a second direction; wherein the first direction is perpendicular to the second direction; The first switch output end of the first control structure is electrically connected to the first switch control end of the first switch structure, the second switch output end of the second control structure is electrically connected to the second switch control end of the second switch structure, the first switch structure is electrically connected to the first power supply end and the first heating component respectively, and the second switch structure is electrically connected to the second power supply end and the second heating component respectively; the first control structure and the first switch structure are arranged along the first direction; the second control structure and the second switch structure are arranged along the first direction; the first switch structure and the second switch structure are arranged along the second direction; The signal input end of the signal transmission structure is electrically connected to the signal providing end, and the signal output end of the signal transmission structure is electrically connected to the first control structure and the second control structure; along the second direction, the signal transmission structure is located between the first control structure and the second control structure; The first alarm output end of the first control structure and the second alarm output end of the second control structure are electrically connected to the alarm input end of the alarm structure respectively; along the second direction, the alarm structure is located between the first control structure and the second control structure.

2. The control circuit board according to claim 1, characterized in that: The first switch structure includes a first switch and a second switch, and the second switch structure includes a third switch and a fourth switch; The control circuit board also includes: a switch control structure; The second switch is electrically connected between the first power supply terminal and the first switch, the first switch output terminal of the first control structure is electrically connected to the control terminal of the first switch, and the second switch control signal output terminal of the switch control structure is electrically connected to the control terminal of the second switch; The fourth switch is electrically connected between the second power supply terminal and the third switch, the second switch output terminal of the second control structure is electrically connected to the control terminal of the third switch, and the fourth switch control signal output terminal of the switch control structure is electrically connected to the control terminal of the fourth switch; The power supply output end of the power supply structure is also electrically connected to the fourth power supply providing end of the switch control structure; along the second direction, the switch control structure is located between the second switch and the fourth switch.

3. The control circuit board according to claim 1, characterized in that: Also includes: A first alarm switch and a second alarm switch; The first alarm output end of the first control structure is electrically connected to the control end of the first alarm switch, the second alarm output end of the second control structure is electrically connected to the control end of the second alarm switch, and the output end of the first alarm switch and the output end of the second alarm switch are electrically connected to the alarm input end of the alarm structure respectively.

4. The control circuit board according to claim 1, characterized in that: The signal transmission structure includes a first temperature signal input terminal, a second temperature signal input terminal, a first temperature signal output terminal, and a second temperature signal output terminal; The first temperature signal input terminal is electrically connected to the first temperature signal providing terminal, and the first temperature signal output terminal is electrically connected to the first control structure; The second temperature signal input terminal is electrically connected to the second temperature signal providing terminal, and the second temperature signal output terminal is electrically connected to the second control structure.

5. The control circuit board according to claim 1, characterized in that: The signal transmission structure includes a communication signal input terminal and a communication signal output terminal; The communication signal input end is electrically connected to the controller, and the communication signal output end is electrically connected to the first communication signal receiving end of the first control structure and the second communication signal receiving end of the second control structure respectively.

6. The control circuit board according to claim 1, characterized in that: Also includes: a first display and a second display; The first display signal input terminal of the first display is electrically connected to the first display signal output terminal of the first control structure, and the second display signal input terminal of the second display is electrically connected to the second display signal output terminal of the second control structure.

7. The control circuit board according to claim 1, characterized in that: Also includes: Wiring structure; The first signal input end of the wiring structure is electrically connected to the first signal output end of the first switch structure, and the first signal output end of the wiring structure is electrically connected to the input end of the first heating component; The second signal input end of the wiring structure is electrically connected to the second signal output end of the second switch structure, and the second signal output end of the wiring structure is electrically connected to the input end of the second heating component.

8. The control circuit board according to claim 7, characterized in that: The wiring structure also includes: an alarm signal input terminal and an alarm signal output terminal; The alarm signal input terminal is electrically connected to the alarm signal providing terminal, and the alarm signal output terminal is electrically connected to the alarm input terminal of the alarm structure.

9. The control circuit board according to claim 1, characterized in that: Also includes: a first jumper structure and a second jumper structure; The first adjustment end of the first jumper structure is electrically connected to the first sensor port of the signal transmission structure, and the second adjustment end of the second jumper structure is electrically connected to the second sensor port of the signal transmission structure; The first jumper structure and the second jumper structure are arranged along the second direction, the first jumper structure, the second control structure and the second switch structure are arranged along the first direction, and the second jumper structure, the second control structure and the second switch structure are arranged along the first direction.

10. A heater, characterized in that: A control circuit board comprising the heater according to any one of claims 1 to 9.

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