CN104902597A - High-energy-efficiency metal PTC rapid electric heater - Google Patents

High-energy-efficiency metal PTC rapid electric heater Download PDF

Info

Publication number
CN104902597A
CN104902597A CN201410075097.2A CN201410075097A CN104902597A CN 104902597 A CN104902597 A CN 104902597A CN 201410075097 A CN201410075097 A CN 201410075097A CN 104902597 A CN104902597 A CN 104902597A
Authority
CN
China
Prior art keywords
heating tube
radiating fin
electric
thermostat
metal ptc
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201410075097.2A
Other languages
Chinese (zh)
Inventor
黄加连
黄骥
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Wuhu Chinese environmental technology Limited by Share Ltd
Original Assignee
Shanghai Huazu Industrial Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Shanghai Huazu Industrial Co Ltd filed Critical Shanghai Huazu Industrial Co Ltd
Priority to CN201410075097.2A priority Critical patent/CN104902597A/en
Publication of CN104902597A publication Critical patent/CN104902597A/en
Pending legal-status Critical Current

Links

Abstract

The invention relates to a metal PTC electric heating pipe, and provides a high-energy-efficiency metal PTC rapid electric heater comprising an electric heater body. The electric heater body comprises at least one metal PTC heating pipe used for heating. Heat-radiating fins are arranged on the heating pipe. The heat-radiating fins comprise a strip-shaped heat-radiating fin body. At least one side edge of the heat-radiating fin body is provided with bending edges. The bending edges are additionally arranged so that area of the heat-radiating fins can be effectively increased and thus heat radiation efficiency of the heat-radiating fins can be enhanced. Preferably, the two side edges are provided with the bending edges.

Description

High energy efficiency metal PTC quick-electric-heating device
Technical field
The present invention relates to heater technical field, be specifically related to metal PTC electric heater.
Background technology
Due to air conditioner not only can freeze, can also heating, enjoy the cool summer and the needs of warming so people can be met simultaneously.And body own vol is less, easy for installation; Rely on driven by power, the limitation of use is little.Particularly in recent years, along with the raising of people's living condition, air conditioner, owing to having above-mentioned advantage, moves towards huge numbers of families just gradually.
Existing air-conditioning heating tube, many employing strip radiating fins, existing strip radiating fin limits by area of dissipation, and radiating efficiency is low.
Summary of the invention
The object of the invention is to, provide a kind of high energy efficiency metal PTC quick-electric-heating device, to solve the problems of the technologies described above.
Technical problem solved by the invention can realize by the following technical solutions:
High energy efficiency metal PTC quick-electric-heating device, comprises an electric heater main body, and described electric heater main body comprises at least one metal PTC heating tube for heating, and described heating tube is provided with radiating fin; It is characterized in that, described radiating fin comprises the radiating fin main body that is strip, and at least one side of described radiating fin main body is provided with bending edges.The present invention, by increasing bending edges, effectively can increase the area of radiating fin, and then can improve the radiating efficiency of radiating fin.Preferred dual-side is equipped with bending edges.
As a kind of preferred version, between described bending edges and described radiating fin main body, be provided with angle.To reduce the distance of bending edges end to described heating tube, and then reduce the overall volume of heating tube.
Angle between each bending edges and be connected radiating fin main body always.The space surrounded to make each two adjacent radiating fins is comparatively even, and then can obtain good radiating effect.
Described angle preferably 5 °-90 °.Within the scope of this, be provided with bending edges, can ensure that the space shared by electric heater main body can not have influence on the installation of air-conditioning other parts on the one hand, on the other hand, ideal radiating effect can be obtained.
Each bending edges can not distance between little two adjacent radiating fin main bodys in the length of the orthographic projection of described heating tube.1 times to 2 times of the distance of preferred each bending edges between two radiating fin main bodys that the length of the orthographic projection of described heating tube is adjacent.
The fore-end of next bending edges can be pressed in or be against on the rear end part of an adjacent upper bending edges.Preferably be pressed in or be against 1/3rd of an adjacent upper bending edges.On the one hand, between two radiating fins, form vent passages, improve radiating effect; On the other hand, in the outside of heating tube, a protective layer can be formed to heating tube by bending edges.
Metal PTC heater element is provided with in described heating tube; The left end of described heating tube is provided with a metal silencer mechanism, and described metal silencer mechanism comprises a fixed head, a fixed support, and described fixed support one end connects described fixed head, and the other end is towards the direction away from described fixed head;
Described fixed support is provided with the fixing opening of at least one heating tube, and each opening is arranged side by side, and the aperture of described opening is not less than the external diameter of heating tube.Described bending edges is preferably placed at the left end of radiating fin main body.Namely radiating fin opening is towards metal silencer mechanism.
The present invention is by arranging fixed support, and heating tube can go deep in opening, thus is erected, and then is fixed on fixed head by heating tube.This kind of fixed form aluminum pipe can not produce pressure to heating element.Heating element can free wxpansion in heating tube, effectively can solve the distortion of heating tube.
The present invention is when work, and heating tube connects external circuit, and electric energy is transferred in heating tube, and converts electrical energy into heat energy by heating tube, and thermal energy transfer is gone out eventually through radiating fin.
Described radiating fin has at least one through hole, described radiating fin to be enclosed within described heating tube by described through hole and with described heating tube close contact; Described through hole is consistent with the number of described heating tube.
Described heating tube periphery is fixed with at least 10 parallel radiating fin main bodys, and described radiating fin main body is equidistantly arranged on described heating tube, and the arranging distance of described radiating fin main body is 2mm ~ 8mm.Be preferably 3.4mm.With Homogeneouslly-radiating.
As a kind of preferred version, described heating tube is by mechanical expanding mode and the seamless compact siro spinning technology of through hole.
As another kind of preferred version, the external diameter of described through hole is provided with flange, and described heating tube is fixedly connected with described radiating fin main body by described flange.Described flange is horn mouth.So that install.
Described radiating fin main body is provided with at least one louvre, and described louvre is equidistantly arranged around the circumference of described through hole.Thus improve the uniformity of heat radiation.Reduce the deflection of radiating fin dilation.
Described heating tube comprises a body, is provided with electrical heating wire, magnesia powder in described body, and described body two ends are provided with silica gel plug, and described body and described silica gel plug cooperation place are provided with sealing device.Because described body and described silica gel plug cooperation place are provided with sealing device, make silica gel plug closer with coordinating of body, improve sealing property of the present invention, avoid that magnesia powder is exposed to make moist, thus substantially increase fail safe and the insulating properties of this electric heating tube.
The body of described heating tube adopts the heating tube of Bundy tube material making.That is, described body adopts a Bundy tube.
Described sealing device is preferably silicon rubber sealing compound.In order to ensure airtight quality.
Described magnesia powder is uniformly filled in the cavity of described heating tube.
Can be also be provided with a protection tube in described body, described electrical heating wire be positioned at described protection tube, described magnesia powder uniform filling and described protection tube internal cavity.Increasing area of dissipation by being provided with a protection tube in body, effectively improve radiating efficiency, so avoid electricity add pipe temperature too high, dispel the heat insufficient, cause air conditioner circuit to burn out.
As a kind of preferred version, described fixed support is provided with two openings, not UNICOM between two openings.To save material, reduce costs.Time more crucial, by UNICOM, the stressing conditions of opening part can be improved.
As another kind of preferred version, described fixed support is provided with two openings, UNICOM between two openings.To improve the blessing effect to aluminum pipe, reduce rocking of aluminum pipe further.
Any one end of described fixed head is provided with flange upwards, and the outside of described flange is provided with collets.Can be bolted between described flange and described collets.
Described fixed support has two at least, and each fixed support is all positioned at the inner side of described flange, and is arranged on the same side of described fixed head with described flange.To ensure that aluminum pipe is fixed stable.
Described opening part is provided with bracing ring, and the thickness of described bracing ring is greater than described support bracket fastened thickness.To play the effect of support to aluminum pipe, alleviate fixed support to the pressure of aluminum pipe.
Described bracing ring can be bell mouth shape, passes to facilitate aluminum pipe.The side of described bracing ring can also have notch, by the clamping dynamics that can adjust aluminum pipe of slotting.The inner side of described bracing ring side can also be provided with damping washer, to reduce the noise that aluminum pipe rising-heat contracting-cold produces.Described bracing ring also directly can be made up of damping washer.
Described bracing ring is positioned at described support bracket fastened side, and one end of described bracing ring connects described fixed support, and the other end is towards away from described fixed support direction.
As a kind of preferred version, described fixed support has two, is respectively the first fixed support, the second fixed support, and the first fixed support, the second fixed support are arranged successively;
Described first fixed support is provided with the side of bracing ring backwards, and opposite side forward; Described second fixed support is provided with the side of bracing ring forward, and opposite side backwards.
As another kind of preferred version, described fixed support has three, is respectively the first fixed support, the second fixed support, the 3rd fixed support, and the first fixed support, the second fixed support, the 3rd fixed support are arranged successively;
Described first fixed support is provided with the side of bracing ring backwards, and opposite side forward; Described second fixed support is provided with the side of bracing ring forward, and opposite side backwards; The side that 3rd fixed support is provided with bracing ring backwards before, opposite side is backwards.
Described fixed head is provided with at least two bolts hole, to facilitate the connection with other parts.Described bolt hole preferably has two, and two bolts hole are all positioned at the middle part of described fixed head.Two bolts hole are respectively the first bolt hole, the second bolt hole, and described first spiro keyhole position is in described first support bracket fastened front, and described second spiro keyhole position is between described 3rd fixed support and described flange.
Described PTC heater element adopts metal PTC heater element.The features such as metal PTC heater element has highly sensitive, easy processing, inactivity is decayed, good stability overload capacity is strong.
Described electric heater main body comprises a metal PTC heating tube temperature mechanism for monitoring, described metal PTC heating tube temperature mechanism for monitoring comprises one for limiting the thermostat of described heating tube temperature, described thermostat is connected with described heating tube, the temperature sensor of described thermostat contacts with described heating tube, and described heating tube connects power supply circuits by described thermostat.When described heating tube is raised to the cut-out temperature value of setting, described thermostat cuts off the power supply circuits of described heating tube; When described heating tube drops to the conducting temperature value of setting, described thermostat connects the power supply circuits of described heating tube.Such power supply circuits, under the control of thermostat, automatically according to variations in temperature conducting or cut-out, can prevent overheated heater on the one hand, save electric power energy on the one hand.
The power supply circuits of described heating tube are connected with a fuse-link.
In order to ensure the temperature detection to heating tube, described radiating fin is provided with normally closed type contact thermoswitch, the triggering and conducting Tandem of described thermoswitch and described thermostat.When radiating fin temperature is higher than thermoswitch temperature, described thermostat cuts off the power supply circuits of described heating tube; When radiating fin temperature is lower than thermoswitch temperature, described thermostat connects the power supply circuits of described heating tube.
Described thermostat is positioned at the right part of described heating tube, and the right part of described heating tube is also provided with one for thermostat being fixed on the mounting bracket on metal PTC heating tube;
Described mounting bracket comprises upper holder, lower fixed frame, and any one in fixed frame or described lower fixed frame is provided with an inserted sheet, and described thermostat is between fixed frame, described lower fixed frame, and described inserted sheet props up described thermostat.
The present invention by arranging inserted sheet on lower fixed frame or upper holder, the position of thermostat can be limited by inserted sheet, can effectively prevent heating tube in the process assembled, transport and use, the situations such as the thermostat that may cause rocks, displacement, thus the temperature measurement accuracy of metal PTC heating tube temperature mechanism for monitoring main body can be improved.
Can also be provided with a slot supporting with described inserted sheet by described thermostat, described inserted sheet inserts in described slot.With fixing described thermostat.
As a kind of preferred version, described lower fixed frame is provided with described inserted sheet.To facilitate installation.The length of described lower fixed frame is 70mm-80mm, preferred 76mm, and width is 20mm-30mm, preferred 25.5mm.The height of described inserted sheet is 2mm-8mm, preferred 3.5mm, and width is 2mm-5mm, preferred 4mm.
In order to limit the position of thermostat further, described lower fixed frame is also provided with the left limit mechanism for limiting described thermostat side-to-side movement, right limit mechanism, described left limit mechanism is positioned at the left side of described inserted sheet, described right limit mechanism is positioned at the right side of described inserted sheet, and the minimum range between described left limit mechanism, described right limit mechanism is more than or equal to the width of described thermostat.Described left limit mechanism, described right limit mechanism distance are 10mm-20mm, preferred 14mm.
The left side of described inserted sheet is provided with first bulge-structure in the shape that raises up, using described first bulge-structure as described left limit mechanism, the right side of described inserted sheet is also provided with second bulge-structure in the shape that raises up, using described second bulge-structure as described right limit mechanism.The present invention is by being provided with the structure of convex, the position of thermostat can be limited on the one hand further, the structure of convex can prop up heating tube on the other hand, in assembling process, the situation of thermostat fail in compression can be reduced, and fixed support and heating tube hard contact can be avoided, the problem such as to wear and tear between fixing insecure, the parts that may exist.
The cross section of the first bulge-structure, the second bulge-structure is all curved, and preferred radius is the circular arc of 1mm-2mm, particularly 1.5mm.
The middle part of described lower fixed frame has a groove, and described inserted sheet is positioned at described groove.On the one hand by fluting, the air circulation of thermostat place can be made, avoid thermostat to cross cause thermal damage, allow the specification according to thermostat on the other hand, the adjustment position of inserted sheet in groove, thus adjustment thermostat is relative to the position of heating tube.As a kind of preferred version, described inserted sheet one end connects described lower fixed frame, and the other end upward.Described inserted sheet can be that notch flange is formed.
Described groove preferably has two, and two grooves are arranged side by side.Distance between two grooves is 2mm-5mm, preferred 4mm.The width of two grooves is all not less than the width of inserted sheet, length is 10mm-20mm, preferred 15mm.
Described lower fixed frame is also provided with at least two bolts hole.For fixing.At least two bolts hole are preferably located along the same line with described inserted sheet.As a kind of preferred version, described lower fixed frame is provided with two bolts hole, and one of them is positioned at the front of described inserted sheet, and another is positioned at the rear of described inserted sheet.The bolt hole being positioned at described inserted sheet front is 8mm-10mm to the minimum range of groove, preferred 9mm, and the bolt hole being positioned at described inserted sheet rear is 10mm-18mm to the minimum range of groove, preferred 14mm.
Fixed plate is also provided with at least one bolt hole, and at least one bolt hole is corresponding with the bolt hole being positioned at described inserted sheet front.Described lower fixed frame connects fixed frame by least one bolt hole.Preferred fixed frame, described lower fixed frame by described be positioned at the corresponding bolt hole of bolt hole in described inserted sheet front and be positioned at the bolt hole in described inserted sheet front, profit is bolted together.
In order to improve the temperature measurement accuracy of metal PTC heating tube temperature mechanism for monitoring further, the side, the left side of described lower fixed frame and side, the right are equipped with flange upwards, and the distance between the flange of side, the left side and the flange of side, the right is more than or equal to the width of heating tube.By this kind of structure, described lower fixed frame can be formed a heating tube position limiting structure, lower fixed frame, by carrying out spacing to heating tube, can limit the position of thermostat on heating tube further.The height of the flange on side, the left side and side, the right is 2mm-4mm, preferred 3.4mm, and thickness is 0.2mm-0.7mm, is preferably 0.5mm.
In the middle part of the front of described lower fixed frame, both sides, front all can be provided with to upper overturning, to limit the position of heating tube further.
The rear of described lower fixed frame is provided with a circuit fixed head, and described circuit fixed head one end connects described lower fixed frame, and upwards, described circuit fixed head is provided with through wires hole in one end.Described circuit fixed head can turn over by the limit, rear being positioned at described lower fixed frame, then punches string holes thereon and is formed.The height of described circuit fixed head is 10mm-19mm, preferred 16.5mm, and width is 10mm-15mm, preferred 12.6mm.
The supply line of described thermostat is stretched out by described through wires hole.The aperture of described through wires hole is 3mm-5mm, preferred 4.2mm.
One bight of described lower fixed frame is provided with an arc opening, and described arc opening is positioned at the side of described circuit fixed head, preferably right side.To facilitate fair line, sharp line.
The height of the lower fixed frame of described thermostat is consistent with the height of described metal silencer mechanism fixed head.Thus by described heating tube horizontal positioned, improve the installation stability of heating tube.
Accompanying drawing explanation
Fig. 1 is a kind of structural representation of the present invention;
Fig. 2 is the structural representation of metal silencer mechanism of the present invention;
Fig. 3 is the front view of lower fixed frame of the present invention;
Fig. 4 is the A-A cutaway view of lower fixed frame of the present invention;
Fig. 5 is the right view of lower fixed frame of the present invention;
Fig. 6 is a kind of structural representation of radiating fin of the present invention;
Fig. 7 is the partial schematic diagram of heating tube of the present invention;
Fig. 8 is the partial enlarged drawing at heating tube I place of the present invention;
Fig. 9 is the part sectioned view of heating tube of the present invention.
Embodiment
The technological means realized to make the present invention, creation characteristic, reaching object and effect is easy to understand, setting forth the present invention further below in conjunction with concrete diagram.
See Fig. 1, high energy efficiency metal PTC quick-electric-heating device, comprises an electric heater main body, and electric heater main body comprises at least one metal PTC heating tube for heating, and heating tube is provided with radiating fin; Radiating fin comprises the radiating fin main body that is strip, and at least one side of radiating fin main body is provided with bending edges 8.The present invention, by increasing bending edges 8, effectively can increase the area of radiating fin, and then can improve the radiating efficiency of radiating fin.Preferred dual-side is equipped with bending edges 8.
As a kind of preferred version, between bending edges 8 and radiating fin main body, be provided with angle.To reduce the distance of bending edges 8 end to heating tube, and then reduce the overall volume of heating tube.Angle between each bending edges 8 and be connected radiating fin main body always.The space surrounded to make each two adjacent radiating fins is comparatively even, and then can obtain good radiating effect.Angle preferably 5 °-90 °.Within the scope of this, be provided with bending edges 8, can ensure that the space shared by electric heater main body can not have influence on the installation of air-conditioning other parts on the one hand, on the other hand, ideal radiating effect can be obtained.
Each bending edges 8 can not distance between little two adjacent radiating fin main bodys in the length of the orthographic projection of heating tube.1 times to 2 times of the distance of preferred each bending edges 8 between two radiating fin main bodys that the length of the orthographic projection of heating tube is adjacent.The fore-end of next bending edges 8 can be pressed in or be against on the rear end part of an adjacent upper bending edges 8.Preferably be pressed in or be against 1/3rd of an adjacent upper bending edges 8.On the one hand, between two radiating fins, form vent passages, improve radiating effect; On the other hand, in the outside of heating tube, a protective layer can be formed to heating tube by bending edges 8.
See Fig. 1, Fig. 2, Fig. 6, high energy efficiency metal PTC quick-electric-heating device, comprises an electric heater main body, and electric heater main body comprises at least one metal PTC heating tube 1 for heating, and heating tube 1 is provided with radiating fin 2; PTC heater element is provided with in heating tube 1; The left end of heating tube 1 is provided with a metal silencer mechanism, and metal silencer mechanism comprises fixed head 3, fixed support 4, and fixed support 4 one end is connected and fixed plate 3, and the other end is towards the direction away from fixed head 3; Fixed support 4 is provided with the fixing opening 11 of at least one heating tube 1, and each opening 11 is arranged side by side, and the aperture of opening 11 is not less than the external diameter of heating tube 1.The present invention is by arranging fixed support 4, and heating tube 1 can go deep in opening 11, thus is erected, and then is fixed on fixed head 3 by heating tube 1.This kind of fixed form aluminum pipe can not produce pressure to heating element.Heating element can free wxpansion in heating tube 1, effectively can alleviate the distortion of heating tube 1.The present invention is when work, and heating tube 1 connects external circuit, and electric energy is transferred in heating tube 1, and converts electrical energy into heat energy by heating tube 1, and thermal energy transfer is gone out eventually through radiating fin 2.
Radiating fin 2 has at least one through hole 21, radiating fin 2 to be enclosed within heating tube 1 by through hole 21 and with heating tube 1 close contact; Through hole 21 is consistent with the number of heating tube 1.Heating tube 1 periphery is fixed with at least 10 parallel radiating fins 2, and radiating fin 2 is equidistantly arranged on heating tube 1, and the arranging distance of radiating fin 2 is 2mm ~ 8mm.Be preferably 3.4mm.With Homogeneouslly-radiating.Radiating fin 2 is provided with at least one louvre, and louvre is equidistantly arranged around the circumference of through hole.Thus improve the uniformity of heat radiation.Reduce the deflection of radiating fin 2 dilation.
As a kind of preferred version, heating tube is by mechanical expanding mode and the seamless compact siro spinning technology of through hole.
As another kind of preferred version, the external diameter of through hole is provided with flange, and heating tube is fixedly connected with radiating fin by flange.Flange is horn mouth.So that install.
See Fig. 7, Fig. 8, heating tube 1 comprises a body, electrical heating wire, magnesia powder 31 is provided with in body, body two ends are provided with silica gel plug 33, and body and silica gel plug 33 cooperation place are provided with sealing device 32, because body and silica gel plug cooperation place are provided with sealing device, make silica gel plug closer with coordinating of body, improve sealing property of the present invention, avoid that magnesia powder is exposed to make moist, thus substantially increase fail safe and the insulating properties of this electric heating tube.The body of heating tube adopts the heating tube of aluminum material making.That is, body adopts an aluminum pipe.Sealing device is preferably silicon rubber sealing compound.In order to ensure airtight quality.Magnesia powder is uniformly filled in the cavity of heating tube.
Also can be that see Fig. 9, be also provided with a protection tube 35 in body, electrical heating wire 34 is positioned at protection tube 35, magnesia powder 31 uniform filling and protection tube internal cavity.Increasing area of dissipation by being provided with a protection tube in body, effectively improve radiating efficiency, so avoid electricity add pipe temperature too high, dispel the heat insufficient, cause air conditioner circuit to burn out.Be provided with heat transfer medium in the gap of protection tube and body, heat transfer medium can be water, air, solid.Described solid can be dry ice.
As a kind of preferred version, fixed support is provided with two openings, not UNICOM between two openings.To save material, reduce costs.Time more crucial, by UNICOM, the stressing conditions of opening part can be improved.
As another kind of preferred version, fixed support is provided with two openings, UNICOM between two openings.To improve the blessing effect to aluminum pipe, reduce the vibration of aluminum pipe further.
Any one end of fixed head is provided with flange upwards, and the outside of flange is provided with collets 10.Can be bolted between flange and collets 10.
Fixed support has two at least, and each fixed support is all positioned at the inner side of flange, and is arranged on the same side of fixed head with flange.To ensure that aluminum pipe is fixed stable.
Opening part is provided with bracing ring, and the thickness of bracing ring is greater than support bracket fastened thickness, to play the effect of support to aluminum pipe, alleviates fixed support to the pressure of aluminum pipe.Bracing ring can be bell mouth shape, passes to facilitate aluminum pipe.The side of bracing ring can also have notch, by the clamping dynamics that can adjust aluminum pipe of slotting.The inner side of bracing ring side can also be provided with damping washer, to reduce the noise that aluminum pipe vibration produces.Bracing ring also directly can be made up of damping washer.Bracing ring is positioned at support bracket fastened side, and one end of bracing ring is connected and fixed support, and the other end is towards away from fixed support direction.
As a kind of preferred version, fixed support has two, is respectively the first fixed support, the second fixed support, and the first fixed support, the second fixed support are arranged successively; First fixed support is provided with the side of bracing ring backwards, and opposite side forward; Second fixed support is provided with the side of bracing ring forward, and opposite side backwards.
As another kind of preferred version, fixed support has three, is respectively the first fixed support, the second fixed support, the 3rd fixed support, and the first fixed support, the second fixed support, the 3rd fixed support are arranged successively; First fixed support is provided with the side of bracing ring backwards, and opposite side forward; Second fixed support is provided with the side of bracing ring forward, and opposite side backwards; The side that 3rd fixed support is provided with bracing ring backwards before, opposite side is backwards.
Fixed head is provided with at least two bolts hole, to facilitate the connection with other parts.Bolt hole preferably has two, and two bolts hole are all positioned at the middle part of fixed head.Two bolts hole are respectively the first bolt hole, the second bolt hole, and the first spiro keyhole position is in the first support bracket fastened front, and the second spiro keyhole position is in the 3rd between fixed support and flange.
PTC heater element adopts metal PTC heater element.The features such as metal PTC heater element has highly sensitive, easy processing, inactivity is decayed, good stability overload capacity is strong.
Electric heater main body comprises a metal PTC heating tube temperature mechanism for monitoring, metal PTC heating tube temperature mechanism for monitoring comprises one for limiting the thermostat 6 of heating tube temperature, thermostat is connected with heating tube electricity, the temperature sensor of thermostat 6 contacts with heating tube, and heating tube connects power supply circuits by thermostat 6.When heating tube is raised to the cut-out temperature value of setting, thermostat 6 cuts off the power supply circuits of heating tube; When heating tube drops to the conducting temperature value of setting, thermostat 6 connects the power supply circuits of heating tube.Such power supply circuits, under the control of thermostat 6, automatically according to variations in temperature conducting or cut-out, can prevent overheated heater on the one hand, save electric power energy on the one hand.The power supply circuits of heating tube are connected with a fuse-link.
In order to ensure the temperature detection to heating tube, radiating fin is provided with normally closed type contact thermoswitch, the triggering and conducting Tandem of thermoswitch and thermostat.When radiating fin temperature is higher than thermoswitch temperature, thermostat cuts off the power supply circuits of heating tube; When radiating fin temperature is lower than thermoswitch temperature, thermostat connects the power supply circuits of heating tube.
Thermostat 6 is positioned at the right part of heating tube, and the right part of heating tube is also provided with one for thermostat being fixed on the mounting bracket on metal PTC heating tube; Mounting bracket comprises upper holder 7, lower fixed frame 5, and any one in upper holder 7 or lower fixed frame 5 is provided with an inserted sheet, and thermostat is between upper holder 7, lower fixed frame 5, and inserted sheet props up thermostat.The present invention by arranging inserted sheet on lower fixed frame 5 or upper holder 7, the position of thermostat can be limited by inserted sheet, can effectively prevent heating tube in the process assembled, transport and use, the situations such as the thermostat that may cause rocks, displacement, thus the temperature measurement accuracy of metal PTC heating tube temperature mechanism for monitoring main body can be improved.Upper holder is provided with the fuse-link support 9 placing fuse-link.
Clean and tidy for the ease of circuit of the present invention, the outgoing line components of fuse, the outgoing line components of thermostat, the outgoing line components of heating tube is organized in together by isolation material, connects external power supply, be provided with sheath outside binding post by a binding post.Insulation protection.
Can also be provided with a slot supporting with inserted sheet by thermostat, inserted sheet inserts in slot.With fixing thermostat.
See Fig. 3, Fig. 4, Fig. 5, lower fixed frame 5 is provided with inserted sheet 16.To facilitate installation.The length of lower fixed frame is 70mm-80mm, preferred 76mm, and width is 20mm-30mm, preferred 25.5mm.The height of inserted sheet is 3mm-6mm, preferred 5mm, and width is 2mm-5mm, preferred 4mm.
In order to limit the position of thermostat further, lower fixed frame is also provided with the left limit mechanism for limiting thermostat side-to-side movement, right limit mechanism, left limit mechanism is positioned at the left side of inserted sheet, right limit mechanism is positioned at the right side of inserted sheet, and the minimum range between left limit mechanism, right limit mechanism is more than or equal to the width of thermostat.Left limit mechanism, right limit mechanism distance are 10mm-20mm, preferred 14mm.
The left side of inserted sheet 16 is provided with first bulge-structure in the shape that raises up, and using the first bulge-structure as left limit mechanism, the right side of inserted sheet is also provided with second bulge-structure in the shape that raises up, using the second bulge-structure as right limit mechanism.The present invention is by being provided with the structure of convex, the position of thermostat can be limited on the one hand further, the structure of convex can prop up heating tube on the other hand, in assembling process, the situation of thermostat fail in compression can be reduced, and fixed support and heating tube hard contact can be avoided, the problem such as to wear and tear between fixing insecure, the parts that may exist.The cross section of the first bulge-structure, the second bulge-structure is all curved, and preferred radius is the circular arc of 1mm-2mm, particularly 1.5mm.
The middle part of lower fixed frame 5 has a groove 15, and inserted sheet 16 is positioned at groove 15.On the one hand by fluting, the air circulation of thermostat place can be made, avoid thermostat to cross cause thermal damage, allow the specification according to thermostat on the other hand, the adjustment position of inserted sheet in groove, thus adjustment thermostat is relative to the position of heating tube.As a kind of preferred version, inserted sheet one end connects lower fixed frame, and the other end upward.Inserted sheet can be that notch flange is formed.Groove preferably has two, and two grooves are arranged side by side.Distance between two grooves is 2mm-5mm, preferred 4mm.The width of two grooves is all not less than the width of inserted sheet, length is 10mm-20mm, preferred 15mm.
Lower fixed frame 5 is also provided with at least two bolts hole 14.For fixing.At least two bolts hole are preferably located along the same line with inserted sheet.As a kind of preferred version, lower fixed frame is provided with two bolts hole, and one of them is positioned at the front of inserted sheet, and another is positioned at the rear of inserted sheet.The bolt hole being positioned at inserted sheet front is 8mm-10mm to the minimum range of groove, preferred 9mm, and the bolt hole being positioned at inserted sheet rear is 10mm-18mm to the minimum range of groove, preferred 14mm.
Upper mounted plate is also provided with at least one bolt hole, and at least one bolt hole is corresponding with the bolt hole being positioned at inserted sheet front.Lower fixed frame connects upper holder by least one bolt hole.Preferred upper holder, lower fixed frame are by bolt hole corresponding with the bolt hole being positioned at inserted sheet front and the bolt hole being positioned at inserted sheet front, and profit is bolted together.
In order to improve the temperature measurement accuracy of metal PTC heating tube temperature mechanism for monitoring further, the side, the left side of lower fixed frame and side, the right are equipped with flange upwards, and the distance between the flange of side, the left side and the flange of side, the right is more than or equal to the width of heating tube.By this kind of structure, lower fixed frame can be formed a heating tube position limiting structure, lower fixed frame, by carrying out spacing to heating tube, can limit the position of thermostat on heating tube further.The height of the flange on side, the left side and side, the right is 2mm-8mm, preferred 3.4mm, and thickness is 0.2mm-0.7mm, is preferably 0.4mm.
In the middle part of the front of lower fixed frame, both sides, front all can be provided with to upper overturning, to limit the position of heating tube further.
The rear of lower fixed frame is provided with a circuit fixed head, and circuit fixed head one end connects lower fixed frame, and upwards, circuit fixed head is provided with through wires hole in one end.Circuit fixed head can turn over by the limit, rear being positioned at lower fixed frame, then punches string holes thereon and is formed.The height of circuit fixed head is 10mm-19mm, preferred 16.5mm, and width is 10mm-15mm, preferred 12.6mm.
The supply line of thermostat is stretched out by through wires hole.The aperture of through wires hole is 3mm-5mm, preferred 4.2mm.
One bight of lower fixed frame is provided with an arc opening, and arc opening is positioned at the side of circuit fixed head, preferably right side.To facilitate fair line, sharp line.
The height of the lower fixed frame of thermostat is consistent with the height of metal silencer mechanism fixed head.Thus by heating tube horizontal positioned, improve the installation stability of heating tube.
More than show and describe general principle of the present invention and principal character and advantage of the present invention.The technical staff of the industry should understand; the present invention is not restricted to the described embodiments; what describe in above-described embodiment and specification just illustrates principle of the present invention; without departing from the spirit and scope of the present invention; the present invention also has various changes and modifications, and these changes and improvements all fall in the claimed scope of the invention.Application claims protection range is defined by appending claims and equivalent thereof.

Claims (10)

1. high energy efficiency metal PTC quick-electric-heating device, comprises an electric heater main body, and described electric heater main body comprises at least one metal PTC heating tube for heating, and described heating tube is provided with radiating fin; It is characterized in that, described radiating fin comprises the radiating fin main body that is strip, and at least one side of described radiating fin main body is provided with bending edges.
2. high energy efficiency metal PTC quick-electric-heating device according to claim 1, is characterized in that, is provided with angle between described bending edges and described radiating fin main body.
3. high energy efficiency metal PTC quick-electric-heating device according to claim 2, is characterized in that, the angle between each bending edges and be connected radiating fin main body always.
4. high energy efficiency metal PTC quick-electric-heating device according to claim 3, is characterized in that, described angle is 5 °-90 °.
5. high energy efficiency metal PTC quick-electric-heating device according to claim 1, is characterized in that, the distance of each bending edges between not little two the adjacent radiating fin main bodys of the length of the orthographic projection of described heating tube.
6. high energy efficiency metal PTC quick-electric-heating device according to claim 5, is characterized in that, 1 times to 2 times of the distance of each bending edges between two radiating fin main bodys that the length of the orthographic projection of described heating tube is adjacent.
7. high energy efficiency metal PTC quick-electric-heating device according to claim 5, is characterized in that, the fore-end of next bending edges is pressed in or is against on the rear end part of an adjacent upper bending edges.
8. according to the high energy efficiency metal PTC quick-electric-heating device in claim 1-7 described in any one, it is characterized in that, in described heating tube, be provided with PTC heater element; The left end of described heating tube is provided with a metal silencer mechanism, and described metal silencer mechanism comprises a fixed head, a fixed support, and described fixed support one end connects described fixed head, and the other end is towards the direction away from described fixed head;
Described fixed support is provided with the fixing opening of at least one heating tube, and each opening is arranged side by side, and the aperture of described opening is not less than the external diameter of heating tube.
9. high energy efficiency metal PTC quick-electric-heating device according to claim 8, is characterized in that, described bending edges is positioned at the left end of radiating fin main body.
10. high energy efficiency metal PTC quick-electric-heating device according to claim 1, it is characterized in that, described electric heater main body comprises a metal PTC heating tube temperature mechanism for monitoring, described metal PTC heating tube temperature mechanism for monitoring comprises one for limiting the thermostat of described heating tube temperature, the temperature sensor of described thermostat contacts with described heating tube, and described heating tube connects power supply circuits by described thermostat;
Described thermostat is positioned at the right part of described heating tube, and the right part of described heating tube is also provided with one for thermostat being fixed on the mounting bracket on metal PTC heating tube.
CN201410075097.2A 2014-03-03 2014-03-03 High-energy-efficiency metal PTC rapid electric heater Pending CN104902597A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201410075097.2A CN104902597A (en) 2014-03-03 2014-03-03 High-energy-efficiency metal PTC rapid electric heater

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201410075097.2A CN104902597A (en) 2014-03-03 2014-03-03 High-energy-efficiency metal PTC rapid electric heater

Publications (1)

Publication Number Publication Date
CN104902597A true CN104902597A (en) 2015-09-09

Family

ID=54034918

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201410075097.2A Pending CN104902597A (en) 2014-03-03 2014-03-03 High-energy-efficiency metal PTC rapid electric heater

Country Status (1)

Country Link
CN (1) CN104902597A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108391329A (en) * 2018-04-12 2018-08-10 珠海格力电器股份有限公司 Electric heater and air conditioner
CN108513375A (en) * 2018-06-08 2018-09-07 北京汉能光伏投资有限公司 A kind of heating tube and the heating device comprising it
CN112332127A (en) * 2020-11-17 2021-02-05 九江德福科技股份有限公司 Inside termination of table department machine oven

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101431838A (en) * 2008-12-04 2009-05-13 常熟通富电子有限公司 Positive temperature coefficient thermistor heating module
CN102387620A (en) * 2010-08-30 2012-03-21 常熟市永祥机电有限公司 Thermistor-heating-type heating device
CN203225900U (en) * 2013-06-14 2013-10-02 上海华族实业有限公司 Metal ptc electric heating pipe assembly
CN103458541A (en) * 2012-12-18 2013-12-18 上海华族实业有限公司 Motor heat pipe assembly with wound cooling fins

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101431838A (en) * 2008-12-04 2009-05-13 常熟通富电子有限公司 Positive temperature coefficient thermistor heating module
CN102387620A (en) * 2010-08-30 2012-03-21 常熟市永祥机电有限公司 Thermistor-heating-type heating device
CN103458541A (en) * 2012-12-18 2013-12-18 上海华族实业有限公司 Motor heat pipe assembly with wound cooling fins
CN203225900U (en) * 2013-06-14 2013-10-02 上海华族实业有限公司 Metal ptc electric heating pipe assembly

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108391329A (en) * 2018-04-12 2018-08-10 珠海格力电器股份有限公司 Electric heater and air conditioner
CN108513375A (en) * 2018-06-08 2018-09-07 北京汉能光伏投资有限公司 A kind of heating tube and the heating device comprising it
CN112332127A (en) * 2020-11-17 2021-02-05 九江德福科技股份有限公司 Inside termination of table department machine oven

Similar Documents

Publication Publication Date Title
CN102695307B (en) Metal positive temperature coefficient (PTC) heater with circular radiating fins
CN104902597A (en) High-energy-efficiency metal PTC rapid electric heater
CN104812112A (en) Metal PTC fast electric heater
CN209747334U (en) Capacitor with good heat dissipation effect
CN203813979U (en) High-heat-radiation metal PTC rapid electric heater
CN203561046U (en) Circulating type heater
CN218669526U (en) Motorcycle exhaust gas exhaust pipe with scald-proof device
CN203115921U (en) Structure for heat conduction, heat accumulation and heat dissipation of LED lamp
CN201322359Y (en) Electric heater
CN210465785U (en) Anti-freezing protection tube for down lead of power communication optical cable
CN203057776U (en) Novel aluminium extrusion radiator
CN206555737U (en) A kind of segmented irradiating lamp structure
CN202857018U (en) PTC air heating assembly
CN113543607B (en) Explosion-proof control cabinet for high-power frequency converter
CN103574893B (en) Heater capable of circulation
CN203217956U (en) Radiator
CN217877240U (en) Electric heating frost melting type carbon dioxide fin heat exchanger
CN220449865U (en) Ultraviolet lamp tube applied to water treatment
CN206977916U (en) A kind of video communication device
CN203826815U (en) Busbar heat radiation power distribution cabinet
CN210246791U (en) Easy radiating router
CN204962349U (en) High heat dissipation LED fluorescent tube of insulating type
CN213586719U (en) Electronic equipment shell with moisture insulation structure
CN210298116U (en) PTC heating plate with wind-guiding structure
CN216592869U (en) Combined radiator with high heat dissipation

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
TA01 Transfer of patent application right
TA01 Transfer of patent application right

Effective date of registration: 20170309

Address after: 241000 Anhui city of Wuhu province Jiujiang Economic Development Zone prosperous road No. 19

Applicant after: Wuhu Chinese environmental technology Limited by Share Ltd

Address before: 201404 Shanghai city Fengxian District Jinhui town Pu Xing Road No. 5518

Applicant before: Shanghai Huazu Industrial Co., Ltd.

RJ01 Rejection of invention patent application after publication
RJ01 Rejection of invention patent application after publication

Application publication date: 20150909