Electric heat tracing control equipment with main and standby switching function

Abstract

The utility model discloses an electric heat tracing control device with a main / standby switching function, and solves the problems of switching disorder and switching failure caused by conduction interference and radiation interference on a permanent magnet by an electrical element in the device when the permanent magnet of the existing device adsorbs a movable seat to drive a conductive block to move. Comprising an equipment main body, a control circuit assembly and a switching driving mechanism, the control circuit assembly comprises an output terminal, a main controller, a standby controller and a main and standby switching part; according to the embodiment of the utility model, the switching driving mechanism and the main and standby switching part are arranged, and the switching driving mechanism and the main and standby switching part are cooperated to realize stable switching of the main control circuit or the standby control circuit of the electric heat tracing; and meanwhile, the switching driving mechanism and the main and standby switching part can realize the isolation power failure of the main control circuit or the standby control circuit when the main control circuit or the standby control circuit is switched, so that the accident of electric leakage during switching is avoided.

Description

Technical Field

[0001] The utility model belongs to the technical field of heat tracing and heat preservation, and in particular relates to an electric heat tracing control device with a main-standby switching function. Background Art

[0002] The electric heating and insulation system is an effective solution for pipeline insulation and antifreeze, and has been widely used. The working principle of the electric heating and insulation system is based on the conduction and heat dissipation of electric heat energy. Through a series of thermoelectric sensors, heating cables and other equipment, electrical energy is converted into thermal energy, thereby achieving the effect of insulation. It is commonly used in industrial occasions such as oil and gas fields, refineries, chemical plants, LNG, etc. The main function of the electric heating control equipment is to manage and monitor the electric heating system to ensure its normal operation, provide stable temperature control, and ensure the safety of the entire system.

[0003] Chinese patent CN220553371U discloses an electric heating control device with a main-standby switching function, including a control cabinet, wherein a main controller and a standby controller arranged up and down are fixedly installed inside the control cabinet, a self-switching connection mechanism is also fixedly installed inside the control cabinet, and a heat dissipation fan is fixedly embedded at both ends of the control cabinet, and the self-switching connection mechanism includes an insulating shell, and a main control circuit electrical connection block and a standby control circuit electrical connection block are symmetrically fixedly connected to the bottom of the inner wall of the insulating shell, and a moving seat is slidably connected to the upper end of the inner wall of the insulating shell through an elastic guide mechanism, and an insulating plate is fixedly connected to the lower end of the moving seat, and a conductive block is fixedly connected to the lower end of the insulating plate. However, when the permanent magnet block of the existing equipment adsorbs the moving seat to drive the conductive block to move, the electrical components in the equipment will cause conduction interference and radiation interference to the permanent magnet, thereby causing switching disorder and switching failure. Based on this, we propose an electric heating control device with a main-standby switching function. Utility Model Content

[0004] The purpose of the utility model is to address the deficiencies of the prior art and provide an electric heating control device with a main-standby switching function, which solves the problem that when the permanent magnet block adsorbs the moving seat of the existing equipment to drive the conductive block to move, the electrical components in the equipment will cause conduction interference and radiation interference to the permanent magnet, thereby causing switching disorder and switching failure.

[0005] The utility model is implemented as follows: an electric heating control device with a main-standby switching function, the electric heating control device with a main-standby switching function comprises:

[0006] The device body comprises a device housing and a device base, the device housing is fixedly mounted on the device base, and a working chamber is arranged in the device housing;

[0007] A control circuit assembly, wherein the control circuit assembly is arranged in the working chamber, and the control circuit assembly comprises:

[0008] An output terminal, the output terminal being detachably mounted on a side wall of the device housing;

[0009] A main controller, the main controller is arranged in the working chamber, and the main controller is electrically connected to a main control circuit;

[0010] A backup controller, wherein the backup controller is arranged in the working chamber and is electrically connected to a backup control circuit;

[0011] A main-standby switching unit, which is arranged on the inner wall of the device housing and is electrically connected to the main controller and the standby controller respectively;

[0012] The switching drive mechanism is arranged in the working chamber, and the switching drive mechanism is respectively connected to the main controller, the backup controller and the main-backup switching part. The switching drive mechanism is used to drive the main controller and the backup controller to move, so as to realize the switching of the main control line and the backup control line.

[0013] Preferably, the switching drive mechanism comprises:

[0014] A switching drive motor, wherein the switching drive motor is fixedly installed in the device housing;

[0015] A switching linkage part is fixedly connected to the output end of the switching drive motor, and the switching linkage part is respectively connected to the main controller, the standby controller and the main-standby switching part.

[0016] Preferably, the switching linkage unit includes:

[0017] A first gear, the first gear is rotatably disposed on the inner wall of the device housing, and one side of the first gear is fixedly connected to the output end of the switching drive motor;

[0018] A second gear, the second gear is arranged on one side of the first gear, and the second gear is meshed with the first gear for transmission;

[0019] A switching insulation groove is provided in the second gear.

[0020] Preferably, the switching linkage unit further includes:

[0021] A main terminal, which is detachably mounted in the switching insulating slot and is electrically connected to a main controller via a main conductor;

[0022] A spare terminal, which is detachably mounted in the switching insulating slot and is electrically connected to the main controller via a spare wire;

[0023] A switching limit seat is fixedly mounted on the upper surface of the second gear and is used to guide and limit the main and standby switching parts.

[0024] Preferably, the active / standby switching unit comprises:

[0025] A main-standby switching seat, the main-standby switching seat is rotatably mounted on the inner wall of the device housing;

[0026] At least one set of primary and standby switching slots, wherein the primary and standby switching slots are arranged in the primary and standby switching seat.

[0027] Preferably, the active / standby switching unit further includes:

[0028] A switch positioning seat, the switch positioning seat is fixedly mounted on the inner wall of the device housing, and the switch positioning seat is rotatably connected to the main and standby switch seats;

[0029] At least one group of conductive sheets, wherein the conductive sheets are embedded in the active / standby switching slots and are electrically connected to the output terminals.

[0030] Preferably, it also includes:

[0031] An auxiliary protection component is arranged in the working chamber and is used for heat dissipation and dust removal protection of the control circuit component.

[0032] Preferably, the auxiliary protection component comprises:

[0033] A dust collecting seat, the dust collecting seat is fixedly mounted on the bottom surface of the device housing, and a dust discharge groove is provided on one side of the dust collecting seat;

[0034] An auxiliary air extraction part is arranged in the dust collecting seat, and the auxiliary air extraction part is used to assist in extracting dust in the working chamber;

[0035] An electrostatic adsorption plate is electrically connected to the main controller and the backup controller respectively. The electrostatic adsorption plate is used for auxiliary collection of dust in the working chamber, and one side of the electrostatic adsorption plate is rotatably connected to an adsorption mounting seat, which is fixedly mounted on the bottom surface of the device housing.

[0036] Preferably, the auxiliary ventilation unit comprises:

[0037] An auxiliary motor, the auxiliary motor is fixedly mounted on the lower surface of the device housing;

[0038] An auxiliary drive shaft fixedly connected to the output end of the auxiliary motor;

[0039] At least one group of auxiliary dust extraction fans, wherein the auxiliary dust extraction fans are detachably mounted on the end of the auxiliary driving shaft, and the auxiliary dust extraction fans are used to assist in extracting dust and hot air from the working chamber.

[0040] Preferably, the switching drive mechanism further comprises:

[0041] An auxiliary driving part, the auxiliary driving part is fixedly connected to the first gear, the auxiliary driving part is also connected to the electrostatic adsorption plate, and the auxiliary driving part is used to drive the electrostatic adsorption plate to flip;

[0042] Wherein, the auxiliary driving unit comprises:

[0043] An auxiliary linkage shaft, wherein the auxiliary linkage shaft is fixedly mounted on the upper surface of the first gear;

[0044] a third gear fixedly connected to the end of the auxiliary linkage shaft, and

[0045] A fourth gear is arranged on one side of the third gear, the fourth gear is meshed with the third gear for transmission, and the fourth gear is fixedly connected to the electrostatic adsorption plate.

[0046] Compared with the prior art, the embodiments of the present application have the following beneficial effects:

[0047] The embodiment of the utility model is provided with a switching drive mechanism and a main-standby switching part. The switching drive mechanism and the main-standby switching part cooperate with each other to realize the stable switching of the main control circuit or the standby control circuit of the electric heating, and at the same time overcome the problem that when the permanent magnet block adsorption moving seat drives the conductive block to move, the electrical components in the equipment will cause conduction interference and radiation interference to the permanent magnet, thereby causing switching disorder and switching failure. At the same time, the switching drive mechanism and the main-standby switching part in the utility model can realize the isolation and power-off of the main control circuit or the standby control circuit when switching the main control circuit or the standby control circuit, thereby avoiding leakage accidents during switching and ensuring the safety of the circuit.

[0048] In the embodiment of the utility model, a switching linkage part is provided, and the switching linkage part is composed of a first gear, a second gear, a main terminal, and a spare terminal. The first gear can drive the second gear, the main terminal, and the spare terminal to rotate, so that the main terminal and the spare terminal are alternately connected to the main-standby switching part, thereby stably realizing the switching of the main and standby lines, and avoiding automatic power failure during switching, and avoiding leakage during switching.

[0049] The embodiment of the utility model is provided with an auxiliary protection component, which can be linked with the switching drive mechanism, so as to automatically adsorb dust in the working chamber when the main control circuit or the backup control circuit is turned on, and quickly extract the hot air in the working chamber, thereby ensuring the stable operation of the equipment and preventing dust from being adsorbed on the switching drive mechanism and the surface of the control circuit component.

[0050] The embodiment of the utility model is provided with an auxiliary driving part, which can be linked with the first gear to drive the electrostatic adsorption plate to flip when the line is switched, so as to facilitate the dust on the electrostatic adsorption plate when the power is cut off to fall into the dust collecting seat, thereby avoiding excessive adsorption of dust on the surface of the electrostatic adsorption plate and improving the dust removal efficiency of the electrostatic adsorption plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0051] Figure 1 It is a structural schematic diagram of an electric heating control device with a main-standby switching function provided by the utility model.

[0052] Figure 2 It is a front view of the electric heating control device with main and standby switching function provided by the utility model.

[0053] Figure 3 It is a top view of the electric heating control device with main and standby switching functions provided by the utility model.

[0054] Figure 4 yes Figure 3 AA section view.

[0055] Figure 5 It is a schematic diagram of the internal structure of the working chamber provided by the utility model.

[0056] Figure 6 It is an internal axonometric diagram of the working chamber provided by the utility model.

[0057] Figure 7 It is a top view of the working chamber provided by the utility model.

[0058] Figure 8 It is a structural schematic diagram of the switching drive mechanism provided by the utility model.

[0059] Fig. 9 It is an axonometric diagram of the switching drive mechanism provided by the utility model.

[0060] In the figure: 1-equipment body, 11-equipment housing, 12-equipment base, 13-disassembly plate, 14-working chamber, 2-control circuit assembly, 21-output terminal, 22-main controller, 221-main conductor, 23-standby controller, 231-standby conductor, 24-main-standby switching part, 241-main-standby switching seat, 242-main-standby switching slot, 243-switching positioning seat, 244-conductive sheet, 3-switching drive mechanism, 31-switching drive motor, 32-switching linkage part, 32 1-first gear, 322-second gear, 323-switching insulation slot, 324-switching limit seat, 325-main terminal, 326-spare terminal, 33-auxiliary drive unit, 331-auxiliary linkage shaft, 332-third gear, 333-fourth gear, 4-auxiliary protection component, 41-auxiliary exhaust unit, 411-auxiliary motor, 412-auxiliary drive shaft, 413-auxiliary dust exhaust fan, 42-dust collecting seat, 43-dust exhaust slot, 44-electrostatic adsorption plate, 45-adsorption mounting seat. DETAILED DESCRIPTION

[0061] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by technicians in the technical field of this application; the terms used in the specification of the application are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including" and "having" in the specification and claims of this application and the above-mentioned drawings and any variations thereof are intended to cover non-exclusive inclusions. The terms "first", "second", etc. in the specification and claims of this application or the above-mentioned drawings are used to distinguish different objects, not to describe a specific order.

[0062] When the permanent magnet block of the existing equipment adsorbs the moving seat to drive the conductive block to move, the electrical components in the equipment will cause conduction interference and radiation interference to the permanent magnet, thereby causing switching disorder and switching failure. In view of the above problems, we propose an electric heating control device with a main-standby switching function. In short, the device includes an equipment body 1, a control circuit component 2, and a switching drive mechanism 3. The control circuit component 2 includes: an output terminal 21, a main controller 22, a standby controller 23, and a main-standby switching part 24. When working, the switching drive mechanism 3 is turned on, and the switching drive mechanism 3 can drive the main-standby switching part 24 to move, so that the main-standby switching part 24 is respectively connected to the main controller 22 or the standby controller 23, thereby realizing the main controller 22 or the standby controller 23 is respectively electrically connected to the output terminal 21, realizing the stable switching of the main control circuit or the standby control circuit of the electric heating, and ensuring the stable operation of the electric heating system. The embodiment of the utility model is provided with a switching drive mechanism 3 and a main-standby switching part 24. The switching drive mechanism 3 and the main-standby switching part 24 cooperate with each other to realize the stable switching of the main control circuit or the standby control circuit of the electric heating, and at the same time overcome the problem that when the permanent magnet block adsorption moving seat drives the conductive block to move in the prior art, the electrical components in the equipment will cause conduction interference and radiation interference to the permanent magnet, thereby causing switching disorder and switching failure. At the same time, the switching drive mechanism 3 and the main-standby switching part 24 in the utility model can realize the isolation and power-off of the main control circuit or the standby control circuit when switching the main control circuit or the standby control circuit, thereby avoiding leakage accidents during switching and ensuring the safety of the circuit.

[0063] The utility model embodiment provides an electric heating control device with a main and standby switching function, such as Figure 1-Figure 4 As shown, the electric heating control device with the main and standby switching function includes:

[0064] The device body 1 includes a device housing 11 and a device base 12. The device housing 11 is fixedly mounted on the device base 12. A working chamber 14 is provided in the device housing 11.

[0065] In this embodiment, the device housing 11 is a rectangular shell or circular shell structure with a hollow interior. The bottom of the device housing 11 is fixedly connected to the device base 12 by welding or riveting. The front side wall of the device housing 11 is detachably installed with a disassembly plate 13. The setting of the disassembly plate 13 facilitates the disassembly and maintenance of electrical components in the working chamber 14.

[0066] The control circuit assembly 2 is arranged in the working chamber 14. Figure 5-Figure 7 As shown, the control circuit component 2 includes:

[0067] An output terminal 21, wherein the output terminal 21 is detachably mounted on a side wall of the device housing 11;

[0068] In this embodiment, the output terminal 21 is installed on the side wall of the device housing 11 by means of threads or snaps, and the output terminal 21 is also electrically connected to a motor, a controller and a central processing unit, so as to realize the control of the electric heating equipment.

[0069] A main controller 22, wherein the main controller 22 is disposed in the working chamber 14, and the main controller 22 is electrically connected to a main control circuit;

[0070] A backup controller 23, wherein the backup controller 23 is disposed in the working chamber 14, and the backup controller 23 is electrically connected to a backup control circuit;

[0071] A main-standby switching unit 24, which is disposed on the inner wall of the device housing 11 and is electrically connected to the main controller 22 and the standby controller 23 respectively;

[0072] In this embodiment, the main controller 22 and the backup controller 23 are of the same model, and both the main controller 22 and the backup controller 23 can be PLC controllers. The main controller 22 and the backup controller 23 are installed on the inner wall of the equipment housing 11 by means of snaps or fastening bolts. In this application, the main control circuit and the backup control circuit are electrically connected to the electric heating equipment / circuit respectively.

[0073] The switching drive mechanism 3 is arranged in the working chamber 14, and the switching drive mechanism 3 is respectively connected to the main controller 22, the backup controller 23 and the main-backup switching part 24. The switching drive mechanism 3 is used to drive the main controller 22 and the backup controller 23 to move, so as to realize the switching of the main control line and the backup control line.

[0074] In this embodiment, when working, the switching drive mechanism 3 is turned on, and the switching drive mechanism 3 can drive the main-standby switching part 24 to move, so that the main-standby switching part 24 is respectively connected to the main controller 22 or the standby controller 23, thereby realizing the main controller 22 or the standby controller 23 being electrically connected to the output terminal 21 respectively, realizing the stable switching of the electric heating main control circuit or the standby control circuit, and ensuring the stable operation of the electric heating system.

[0075] The embodiment of the utility model is provided with a switching drive mechanism 3 and a main-standby switching part 24. The switching drive mechanism 3 and the main-standby switching part 24 cooperate with each other to realize the stable switching of the main control circuit or the standby control circuit of the electric heating, and at the same time overcome the problem that when the permanent magnet block adsorption moving seat drives the conductive block to move in the prior art, the electrical components in the equipment will cause conduction interference and radiation interference to the permanent magnet, thereby causing switching disorder and switching failure. At the same time, the switching drive mechanism 3 and the main-standby switching part 24 in the utility model can realize the isolation and power-off of the main control circuit or the standby control circuit when switching the main control circuit or the standby control circuit, thereby avoiding leakage accidents during switching and ensuring the safety of the circuit.

[0076] In a further preferred embodiment of the present invention, Figure 8-Figure 9 As shown, the switching drive mechanism 3 includes:

[0077] A switching drive motor 31, wherein the switching drive motor 31 is fixedly installed in the device housing 11;

[0078] A switching linkage part 32 is fixedly connected to the output end of the switching drive motor 31 , and the switching linkage part 32 is respectively connected to the main controller 22 , the standby controller 23 and the main-standby switching part 24 .

[0079] In this embodiment, the switching drive motor 31 may be a servo motor or a forward and reverse motor, and the switching drive motor 31 is fixedly connected to the device housing 11 by plugging or bolting.

[0080] In a further preferred embodiment of the present invention, Figure 8 As shown, the switching linkage unit 32 includes:

[0081] A first gear 321, wherein the first gear 321 is rotatably disposed on the inner wall of the device housing 11, and one side of the first gear 321 is fixedly connected to the output end of the switching drive motor 31;

[0082] A second gear 322, which is disposed on one side of the first gear 321 and meshes with the first gear 321 for transmission;

[0083] A switching insulating groove 323 is formed in the second gear 322 .

[0084] In this embodiment, the inner wall of the first gear 321 is fixedly connected to the output end of the switching drive motor 31 by interference fit or plug-in, and the second gear 322 is rotatably connected to the inner wall of the equipment housing 11 through a bearing. The switching insulating groove 323 is a circular groove, and the inner wall of the switching insulating groove 323 is coated with insulating material, so as to avoid accidents of switching lines and leakage after switching is completed.

[0085] A main terminal 325, wherein the main terminal 325 is detachably mounted in the switching insulating slot 323, and the main terminal 325 is electrically connected to the main controller 22 through the main conductor 221;

[0086] A spare terminal 326, which is detachably mounted in the switching insulating slot 323, and is electrically connected to the main controller 22 via a spare wire 231;

[0087] The switching limit seat 324 is fixedly mounted on the upper surface of the second gear 322 , and the switching limit seat 324 is used to guide and limit the main-standby switching part 24 .

[0088] In this embodiment, the main terminal 325 and the spare terminal 326 can be spiral, spring, or socket terminals, and the main terminal 325 and the spare terminal 326 are electrically connected to the main conductor 221 and the spare conductor 231 through bearings or rings, respectively, and the main conductor 221 is electrically connected to the main controller 22, and the spare conductor 231 is electrically connected to the spare controller 23, and the switch limit seat 324 is fixedly mounted on the upper surface of the second gear 322 by a snap or a fastening bolt.

[0089] In the embodiment of the utility model, a switching linkage part 32 is provided, and the switching linkage part 32 is composed of a first gear 321, a second gear 322, a main terminal 325, and a spare terminal 326. The first gear 321 can drive the second gear 322, the main terminal 325, and the spare terminal 326 to rotate, so that the main terminal 325 and the spare terminal 326 are alternately connected to the main-standby switching part 24, so as to stably realize the switching of the main and standby lines, and at the same time avoid automatic power failure during switching, and avoid leakage during switching.

[0090] In a further preferred embodiment of the present invention, Fig. 9 As shown, the active / standby switching unit 24 includes:

[0091] A main / standby switching seat 241, wherein the main / standby switching seat 241 is rotatably mounted on the inner wall of the device housing 11;

[0092] At least one set of primary and standby switching slots 242 , wherein the primary and standby switching slots 242 are disposed in the primary and standby switching seat 241 .

[0093] A switch positioning seat 243, wherein the switch positioning seat 243 is fixedly mounted on the inner wall of the device housing 11, and the switch positioning seat 243 is rotatably connected to the main / standby switch seat 241;

[0094] At least one group of conductive sheets 244 , wherein the conductive sheets 244 are embedded in the primary / standby switching slots 242 , and the conductive sheets 244 are electrically connected to the output terminals 21 .

[0095] In this embodiment, the main-standby switching seat 241 can be a rectangular seat or a diamond seat, and the main-standby switching seat 241 is rotatably connected to the switching positioning seat 243 through bearings or rollers. A circular groove is opened at the center position of the main-standby switching seat 241, and the main-standby switching groove 242 can be a rectangular groove. The inner end of the main-standby switching groove 242 is installed with a conductive sheet 244 by means of fastening bolts or snaps. The setting of the conductive sheet 244 facilitates the conduction between the output terminal 21 and the main terminal 325 and the standby terminal 326.

[0096] During operation, the switching drive motor 31 is turned on. The starting of the switching drive motor 31 can drive the first gear 321 to rotate, and the first gear 321 drives the second gear 322, the main terminal 325, the spare terminal 326, and the switching limit seat 324 to rotate, so that the main terminal 325 and the spare terminal 326 alternately enter the main-standby switching slot 242 in the main-standby switching seat 241, so that the main terminal 325 and the spare terminal 326 are alternately connected to the conductive sheet 244, thereby realizing the alternating switching of the main control line or the spare control line.

[0097] In a further preferred embodiment of the present invention, Figure 5-Figure 6 As shown, the embodiment of the utility model also includes:

[0098] The auxiliary protection component 4 is arranged in the working chamber 14 and is used for heat dissipation and dust removal protection of the control circuit component 2.

[0099] The embodiment of the utility model is provided with an auxiliary protection component 4, which can be linked with the switching drive mechanism 3, so as to automatically realize the adsorption of dust in the working chamber 14 and quickly extract the hot air in the working chamber 14 when the main control circuit or the backup control circuit is turned on, thereby ensuring the stable operation of the equipment and preventing dust from being adsorbed on the surface of the switching drive mechanism 3 and the control circuit component 2.

[0100] The auxiliary protection component 4 includes:

[0101] A dust collecting seat 42, wherein the dust collecting seat 42 is fixedly mounted on the bottom surface of the device housing 11, and a dust discharge groove 43 is provided on one side of the dust collecting seat 42;

[0102] In this embodiment, the dust collecting seat 42 may be a rectangular seat or a round seat with a hollow interior, and the bottom of the dust collecting seat 42 is inclined, and the surface of the dust exhaust groove 43 is polished.

[0103] An auxiliary air extraction part 41 is disposed in the dust collecting seat 42, and the auxiliary air extraction part 41 is used to assist in extracting dust in the working chamber 14;

[0104] The electrostatic adsorption plate 44 is electrically connected to the main controller 22 and the standby controller 23 respectively. The electrostatic adsorption plate 44 is used for auxiliary collection of dust in the working chamber 14, and one side of the electrostatic adsorption plate 44 is rotatably connected to an adsorption mounting seat 45, and the adsorption mounting seat 45 is fixedly mounted on the bottom surface of the equipment housing 11.

[0105] In this embodiment, the electrostatic adsorption plate 44 is a rectangular, fan-shaped or circular plate structure, and the model of the electrostatic adsorption plate 44 can be CJMA / CJMB, GD or GDF. At the same time, after the line switching is completed, the main controller 22 and the standby controller 23 respectively control the electrostatic adsorption plate 44 to turn on, so that the electrostatic adsorption plate 44 continues to adsorb dust. During the switching of the main and standby lines, the electrostatic adsorption plate 44 is powered off, so that the dust on the surface of the electrostatic adsorption plate 44 falls into the dust collecting seat 42, which is beneficial to the continuous adsorption of dust in the working chamber 14.

[0106] The auxiliary air extraction unit 41 includes:

[0107] An auxiliary motor 411, wherein the auxiliary motor 411 is fixedly mounted on the lower surface of the device housing 11;

[0108] An auxiliary drive shaft 412 fixedly connected to an output end of the auxiliary motor 411;

[0109] At least one set of auxiliary dust extraction fans 413 , which are detachably mounted on the end of the auxiliary driving shaft 412 , and are used to assist in extracting dust and hot air from the working chamber 14 .

[0110] During operation, the auxiliary motor 411 is turned on, and the auxiliary motor 411 can drive the auxiliary driving shaft 412 to rotate, so that the auxiliary driving shaft 412 drives the auxiliary dust extraction fan 413 to rotate, and then the auxiliary dust extraction fan 413 draws the hot air and dust in the working chamber 14 into the dust collecting seat 42.

[0111] The auxiliary motor 411 can be a servo motor, and the auxiliary motor 411 is fixedly installed on the lower surface of the equipment housing 11 by a clamp or a fastening bolt. The output end of the auxiliary motor 411 is fixedly connected to the auxiliary drive shaft 412 by an interference fit. The auxiliary dust extraction fan 413 is fixedly connected to the end of the auxiliary drive shaft 412 by a clamp or a bolt connection. The auxiliary dust extraction fan 413 can be a fan-shaped, spiral or rectangular structure.

[0112] In a further preferred embodiment of the present invention, Figure 5-Figure 6 As shown, the switching drive mechanism 3 also includes:

[0113] An auxiliary driving part 33, wherein the auxiliary driving part 33 is fixedly connected to the first gear 321, and the auxiliary driving part 33 is also connected to the electrostatic adsorption plate 44, and the auxiliary driving part 33 is used to drive the electrostatic adsorption plate 44 to flip;

[0114] The embodiment of the utility model is provided with an auxiliary driving part 33, which can be linked with the first gear 321, so as to drive the electrostatic adsorption plate 44 to flip when the line is switched, so as to facilitate the dust on the electrostatic adsorption plate 44 which is powered off to fall into the dust collecting seat 42, thereby avoiding excessive adsorption of dust on the surface of the electrostatic adsorption plate 44, and improving the dust removal efficiency of the electrostatic adsorption plate 44.

[0115] Wherein, the auxiliary driving unit 33 includes:

[0116] An auxiliary linkage shaft 331, wherein the auxiliary linkage shaft 331 is fixedly mounted on an upper surface of the first gear 321;

[0117] a third gear 332 fixedly connected to the end of the auxiliary linkage shaft 331, and

[0118] The fourth gear 333 is disposed on one side of the third gear 332 , and the fourth gear 333 is meshed with the third gear 332 for transmission, and the fourth gear 333 is fixedly connected to the electrostatic adsorption plate 44 .

[0119] In this embodiment, one end of the auxiliary linkage shaft 331 is fixedly connected to the first gear 321 by plugging or riveting, and the end of the auxiliary linkage shaft 331 away from the first gear 321 is fixedly connected to the third gear 332. The third gear 332 can be an incomplete gear of one-third, one-quarter or one-fifth, and the fourth gear 333 is fixedly connected to the electrostatic adsorption plate 44 by snapping or riveting.

[0120] During operation, the rotation of the first gear 321 can drive the auxiliary linkage shaft 331 to rotate, so that the auxiliary linkage shaft 331 drives the third gear 332 to rotate. The rotation of the third gear 332 can drive the fourth gear 333 and the electrostatic adsorption plate 44 to rotate intermittently, which facilitates the collection of dust on the surface of the electrostatic adsorption plate 44 and indirectly improves the dust removal efficiency.

[0121] In summary, the utility model provides an electric heating control device with a master-slave switching function. When working, the switching drive mechanism 3 is turned on, and the switching drive mechanism 3 can drive the master-slave switching part 24 to move, so that the master-slave switching part 24 is respectively connected to the main controller 22 or the standby controller 23, thereby realizing the main controller 22 or the standby controller 23 being electrically connected to the output terminal 21, respectively, realizing the stable switching of the electric heating main control circuit or the standby control circuit, and ensuring the stable operation of the electric heating system.

[0122] The embodiment of the utility model is provided with a switching drive mechanism 3 and a main-standby switching part 24. The switching drive mechanism 3 and the main-standby switching part 24 cooperate with each other to realize the stable switching of the main control circuit or the standby control circuit of the electric heating, and at the same time overcome the problem that when the permanent magnet block adsorption moving seat drives the conductive block to move in the prior art, the electrical components in the equipment will cause conduction interference and radiation interference to the permanent magnet, thereby causing switching disorder and switching failure. At the same time, the switching drive mechanism 3 and the main-standby switching part 24 in the utility model can realize the isolation and power-off of the main control circuit or the standby control circuit when switching the main control circuit or the standby control circuit, thereby avoiding leakage accidents during switching and ensuring the safety of the circuit.

[0123] It should be noted that, for the above-mentioned embodiments, for the sake of simplicity, they are all described as a series of action combinations, but those skilled in the art should know that the utility model is not limited by the described action sequence, because according to the utility model, some steps may be performed in other sequences or simultaneously. Secondly, those skilled in the art should also know that the embodiments described in the specification are all preferred embodiments, and the actions and modules involved are not necessarily required by the utility model.

[0124] The above embodiments are only used to illustrate the technical solutions of the utility model, rather than to limit the protection scope of the utility model. Obviously, the described embodiments are only some embodiments of the utility model, rather than all embodiments. Based on these embodiments, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model. Although the utility model has been described in detail with reference to the above embodiments, ordinary technicians in this field can still combine, add, delete or make other adjustments to the features in the various embodiments of the utility model according to the circumstances without conflict, without making creative work, so as to obtain different other technical solutions that do not deviate from the concept of the utility model in essence, and these technical solutions also belong to the scope of protection of the utility model.

Claims

1. An electric heating control device with a primary and standby switching function, the electric heating control device with a primary and standby switching function comprising: A device body (1), the device body (1) comprising a device housing (11) and a device base (12), the device housing (11) being fixedly mounted on the device base (12), and a working chamber (14) being arranged in the device housing (11); A control circuit assembly (2), characterized in that the control circuit assembly (2) is arranged in the working chamber (14), and the control circuit assembly (2) comprises: An output terminal (21), the output terminal (21) being detachably mounted on a side wall of the device housing (11); A main controller (22), the main controller (22) being disposed in the working chamber (14), and the main controller (22) being electrically connected to a main control circuit; A backup controller (23), wherein the backup controller (23) is disposed in the working chamber (14), and the backup controller (23) is electrically connected to a backup control circuit; A main-standby switching unit (24), the main-standby switching unit (24) being arranged on the inner wall of the device housing (11), and the main-standby switching unit (24) being electrically connected to the main controller (22) and the standby controller (23) respectively; A switching drive mechanism (3), wherein the switching drive mechanism (3) is arranged in the working chamber (14), and the switching drive mechanism (3) is respectively connected to the main controller (22), the standby controller (23) and the main-standby switching unit (24), and the switching drive mechanism (3) is used to drive the main controller (22) and the standby controller (23) to move, so as to realize the switching operation of the main control circuit and the standby control circuit.

2. The electric heating control device with active / standby switching function according to claim 1, characterized in that: The switching drive mechanism (3) comprises: A switching drive motor (31), wherein the switching drive motor (31) is fixedly mounted in the device housing (11); A switching linkage part (32) is fixedly connected to the output end of the switching drive motor (31), and the switching linkage part (32) is respectively connected to the main controller (22), the standby controller (23) and the main-standby switching part (24).

3. The electric heating control device with active / standby switching function according to claim 2, characterized in that: The switching linkage unit (32) comprises: A first gear (321), the first gear (321) being rotatably disposed on the inner wall of the device housing (11), and one side of the first gear (321) being fixedly connected to the output end of the switching drive motor (31); A second gear (322), the second gear (322) being arranged on one side of the first gear (321), and the second gear (322) and the first gear (321) being meshed and transmitted with each other; A switching insulation groove (323) is provided in the second gear (322).

4. The electric heating control device with active / standby switching function according to claim 3, characterized in that: The switching linkage unit (32) further includes: A main terminal (325), the main terminal (325) is detachably mounted in the switching insulation slot (323), and the main terminal (325) is electrically connected to the main controller (22) via a main conductor (221); A spare terminal (326), the spare terminal (326) being detachably mounted in the switching insulating slot (323), and the spare terminal (326) being electrically connected to the main controller (22) via a spare wire (231); A switching limit seat (324), wherein the switching limit seat (324) is fixedly mounted on the upper surface of the second gear (322), and the switching limit seat (324) is used to guide and limit the main and standby switching parts (24).

5. The electric heating control device with active / standby switching function according to claim 4, characterized in that: The active / standby switching unit (24) comprises: A main / standby switching seat (241), the main / standby switching seat (241) being rotatably mounted on the inner wall of the device housing (11); At least one set of primary and standby switching slots (242), wherein the primary and standby switching slots (242) are arranged in the primary and standby switching seat (241).

6. The electric heating control device with active / standby switching function according to claim 5, characterized in that: The active / standby switching unit (24) further comprises: A switch positioning seat (243), wherein the switch positioning seat (243) is fixedly mounted on the inner wall of the device housing (11), and the switch positioning seat (243) is rotationally connected to the main / standby switch seat (241); At least one group of conductive sheets (244), wherein the conductive sheets (244) are embedded in the primary / standby switching slots (242), and the conductive sheets (244) are electrically connected to the output terminals (21).

7. The electric heating control device with active / standby switching function according to any one of claims 3 to 6, characterized in that: Also includes: An auxiliary protection component (4) is arranged in the working chamber (14), and the auxiliary protection component (4) is used to provide heat dissipation and dust removal protection for the control circuit component (2).

8. The electric heating control device with active / standby switching function according to claim 7, characterized in that: The auxiliary protection component (4) comprises: A dust collecting seat (42), the dust collecting seat (42) being fixedly mounted on the bottom surface of the device housing (11), and a dust discharge groove (43) is provided on one side of the dust collecting seat (42); an auxiliary air extraction portion (41) disposed in the dust collecting seat (42), the auxiliary air extraction portion (41) being used to assist in extracting dust from the working chamber (14); An electrostatic adsorption plate (44), wherein the electrostatic adsorption plate (44) is electrically connected to the main controller (22) and the standby controller (23), respectively, and the electrostatic adsorption plate (44) is used for auxiliary collection of dust in the working chamber (14), and one side of the electrostatic adsorption plate (44) is rotatably connected to an adsorption mounting seat (45), and the adsorption mounting seat (45) is fixedly mounted on the bottom surface of the device housing (11).

9. The electric heating control device with active / standby switching function according to claim 8, characterized in that: The auxiliary air extraction unit (41) comprises: An auxiliary motor (411), the auxiliary motor (411) being fixedly mounted on the lower surface of the device housing (11); An auxiliary drive shaft (412) fixedly connected to the output end of the auxiliary motor (411); At least one group of auxiliary dust extraction fans (413), wherein the auxiliary dust extraction fans (413) are detachably mounted on the end of the auxiliary drive shaft (412), and the auxiliary dust extraction fans (413) are used to assist in extracting dust and hot air from the working chamber (14).

10. The electric heating control device with active / standby switching function according to claim 9, characterized in that: The switching drive mechanism (3) further comprises: An auxiliary driving part (33), the auxiliary driving part (33) being fixedly connected to the first gear (321), the auxiliary driving part (33) being also connected to the electrostatic adsorption plate (44), and the auxiliary driving part (33) being used to drive the electrostatic adsorption plate (44) to flip; Wherein, the auxiliary driving unit (33) comprises: An auxiliary linkage shaft (331), wherein the auxiliary linkage shaft (331) is fixedly mounted on an upper surface of the first gear (321); a third gear (332) fixedly connected to the end of the auxiliary linkage shaft (331), and A fourth gear (333) is arranged on one side of the third gear (332), the fourth gear (333) and the third gear (332) are meshed and transmitted with each other, and the fourth gear (333) is fixedly connected to the electrostatic adsorption plate (44).

Images