CN104812112A - Metal PTC fast electric heater - Google Patents
Metal PTC fast electric heater Download PDFInfo
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- CN104812112A CN104812112A CN201410038010.4A CN201410038010A CN104812112A CN 104812112 A CN104812112 A CN 104812112A CN 201410038010 A CN201410038010 A CN 201410038010A CN 104812112 A CN104812112 A CN 104812112A
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- Prior art keywords
- heating tube
- thermostat
- fixed support
- metal
- metal ptc
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- 238000010438 heat treatment Methods 0.000 claims abstract description 160
- 229910052751 metal Inorganic materials 0.000 claims abstract description 50
- 239000002184 metal Substances 0.000 claims abstract description 50
- 230000007246 mechanism Effects 0.000 claims abstract description 48
- CPLXHLVBOLITMK-UHFFFAOYSA-N Magnesium oxide Chemical compound [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 claims description 18
- 238000005485 electric heating Methods 0.000 claims description 16
- 238000007789 sealing Methods 0.000 claims description 11
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 10
- 238000012544 monitoring process Methods 0.000 claims description 10
- 230000003584 silencer Effects 0.000 claims description 10
- 239000000741 silica gel Substances 0.000 claims description 10
- 229910002027 silica gel Inorganic materials 0.000 claims description 10
- 239000000395 magnesium oxide Substances 0.000 claims description 9
- 239000000843 powder Substances 0.000 claims description 9
- 229910052782 aluminium Inorganic materials 0.000 abstract description 27
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 abstract description 27
- 230000030279 gene silencing Effects 0.000 abstract 2
- 230000017525 heat dissipation Effects 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 5
- 238000009434 installation Methods 0.000 description 5
- 239000000463 material Substances 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 238000009529 body temperature measurement Methods 0.000 description 4
- 238000013016 damping Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 239000011435 rock Substances 0.000 description 4
- 125000003003 spiro group Chemical group 0.000 description 4
- 238000012546 transfer Methods 0.000 description 4
- 230000005611 electricity Effects 0.000 description 3
- 241000168254 Siro Species 0.000 description 2
- 238000004378 air conditioning Methods 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000010339 dilation Effects 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 230000005855 radiation Effects 0.000 description 2
- 229920002379 silicone rubber Polymers 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 238000009987 spinning Methods 0.000 description 2
- 230000003685 thermal hair damage Effects 0.000 description 2
- 230000007306 turnover Effects 0.000 description 2
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 1
- 239000003570 air Substances 0.000 description 1
- 235000011089 carbon dioxide Nutrition 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000010792 warming Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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Abstract
The invention belongs to the metal PTC heating tube field and relate to a metal PTC fast electric heater. The metal PTC fast electric heater comprises an electric heater main body; the electric heater main body comprises at least one metal PTC heating tube used for heating; the heating tube is provided with heat dissipation sheets; a PTC heat emitting element is arranged in the heating tube; the left end of the heating tube is provided with a metal silencing mechanism; the metal silencing mechanism includes a fixing plate and a fixing bracket; one end of the fixing bracket is connected with the fixing plate; the other end of the fixing bracket faces a direction far away from the fixing plate; the fixing bracket is provided with at least one opening for fixing the heating tube; the openings are distributed side by side; and the aperture of the openings is not smaller than the outer diameter of the heating tube. According to the metal PTC fast electric heater of the invention, the fixing bracket is adopted, and the heating tube can extend into the opening so as to be supported, so that the heating tube can be fixed on the fixing plate. With the fixing mode in the invention adopted, the aluminum tube will not stress the heating element, and the heating element can expand freely in the heating tube, and the deformation of the heating tube can be effectively alleviated.
Description
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, in fixing, how being directly pressed together on aluminum pipe, aluminum pipe can press together with the heating element of the inside again.Because aluminum pipe is different with the thermal coefficient of expansion of heating element, in air-conditioning use procedure, the expansion of aluminum pipe and shrink very fast, the expansion of heating element and shrink comparatively slow, heating tube is easily out of shape, and gas easily to collide noise larger.
Summary of the invention
The object of the invention is to, a kind of metal PTC quick-electric-heating device is provided, to solve the problems of the technologies described above.
Technical problem solved by the invention can realize by the following technical solutions:
Metal PTC quick-electric-heating device, comprises an electric heater main body, and described electric heater main body comprises at least one and it is characterized in that for the metal PTC heating tube heated, and described heating tube is provided with fin; 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
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 alleviate 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 fin.
Described fin has at least one through hole, described 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 fin, and described fin is equidistantly arranged on described heating tube, and the arranging distance of described fin is 1.5mm ~ 6mm.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 fin by described flange.Described flange is horn mouth.So that install.
Described fin 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 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 more close with coordinating of body, improve sealing property of the present invention, avoid magnesia powder and leak, 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 aluminum material making.That is, described body adopts an aluminum pipe.
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 rocks generation.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 fin is provided with normally closed type contact thermoswitch, the triggering and conducting Tandem of described thermoswitch and described thermostat.When heatsink temperature is higher than thermoswitch temperature, described thermostat cuts off the power supply circuits of described heating tube; When heatsink 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 3mm-6mm, preferred 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 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;
Figure 10 is the front view of a kind of structure of metal silencer mechanism of the present invention;
Figure 11 is the left view of Figure 10 structure;
Figure 12 is the vertical view of Figure 10 structure.
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, Fig. 2, Fig. 6, 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 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 fin 2.
Fin 2 has at least one through hole 21, 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 fin 2, and fin 2 is equidistantly arranged on heating tube 1, and the arranging distance of fin 2 is 1.5mm ~ 6mm.Be preferably 3.4mm.With Homogeneouslly-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 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 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 magnesia powder and leak, 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 rocking of aluminum pipe further.
See Figure 10, Figure 11, Figure 12, a kind of structural representation of fixed support 4.
Fixed support 4 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 3 with flange.To ensure that aluminum pipe is fixed stable.
Opening 11 place is provided with bracing ring 12, and the thickness of bracing ring 12 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 12 can be bell mouth shape, passes to facilitate aluminum pipe.The side of bracing ring 12 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 rocks generation.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.
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 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, fin is provided with normally closed type contact thermoswitch, the triggering and conducting Tandem of thermoswitch and thermostat.When heatsink temperature is higher than thermoswitch temperature, thermostat cuts off the power supply circuits of heating tube; When heatsink 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-4mm, preferred 3.4mm, and thickness is 0.2mm-0.7mm, is preferably 0.5mm.
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. metal PTC quick-electric-heating device, comprises an electric heater main body, and described electric heater main body comprises at least one and it is characterized in that for the metal PTC heating tube heated, and described heating tube is provided with fin; 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.
2. metal PTC quick-electric-heating device according to claim 1, is characterized in that, described fin has at least one through hole, described 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.
3. metal PTC quick-electric-heating device according to claim 1, it is characterized in that, described heating tube comprises a body, is provided with electrical heating wire, magnesia powder in described body, 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.
4. metal PTC quick-electric-heating device according to claim 1, is characterized in that, described fixed support is provided with two openings, and described opening part is provided with bracing ring, and the thickness of described bracing ring is greater than described support bracket fastened thickness.
5. metal PTC quick-electric-heating device according to claim 4, is characterized in that, 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.
6. metal PTC quick-electric-heating device according to claim 1, is characterized in that, any one end of described fixed head is provided with flange upwards, and the outside of described flange is provided with collets.
7. metal PTC quick-electric-heating device according to claim 6, is characterized in that, 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.
8. 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.
9. metal PTC quick-electric-heating device according to claim 8, is characterized in that, 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.
10. metal PTC quick-electric-heating device according to claim 9, it is characterized in that, 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.
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| CN201410038010.4A CN104812112B (en) | 2014-01-26 | 2014-01-26 | Metal PTC quick-electric-heating device |
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| CN201410038010.4A CN104812112B (en) | 2014-01-26 | 2014-01-26 | Metal PTC quick-electric-heating device |
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| CN104812112B CN104812112B (en) | 2019-03-26 |
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| CN105682267A (en) * | 2015-11-30 | 2016-06-15 | 芜湖恒美电热器具有限公司 | PTC heater with high-voltage wire fixing structure |
| CN108773143A (en) * | 2018-06-21 | 2018-11-09 | 江苏鸿华特种装备有限公司 | Sheet combining machine structure |
| CN109714840A (en) * | 2019-03-01 | 2019-05-03 | 佛山市沃熙电器科技有限公司 | A kind of thick-film heating device assembly |
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| CN202374475U (en) * | 2011-11-29 | 2012-08-08 | 李杏宜 | Heating tube support frame |
| 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 |
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| CN101431838A (en) * | 2008-12-04 | 2009-05-13 | 常熟通富电子有限公司 | Positive temperature coefficient thermistor heating module |
| CN202374475U (en) * | 2011-11-29 | 2012-08-08 | 李杏宜 | Heating tube support frame |
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| CN108773143A (en) * | 2018-06-21 | 2018-11-09 | 江苏鸿华特种装备有限公司 | Sheet combining machine structure |
| CN109714840A (en) * | 2019-03-01 | 2019-05-03 | 佛山市沃熙电器科技有限公司 | A kind of thick-film heating device assembly |
| CN109714840B (en) * | 2019-03-01 | 2024-05-24 | 佛山市百斯特电器科技有限公司 | Household appliance |
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| CN104812112B (en) | 2019-03-26 |
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Denomination of invention: Combined type metal PTC (positive temperature coefficient) rapid electric heater Effective date of registration: 20200428 Granted publication date: 20190326 Pledgee: Wuhu Jiujiang sub branch of Huishang Bank Co.,Ltd. Pledgor: WUHU HUAZU ENVIRONMENTAL TECHNOLOGY Co.,Ltd. Registration number: Y2020330000202 |
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Date of cancellation: 20210901 Granted publication date: 20190326 Pledgee: Wuhu Jiujiang sub branch of Huishang Bank Co.,Ltd. Pledgor: WUHU HUAZU ENVIRONMENTAL TECHNOLOGY Co.,Ltd. Registration number: Y2020330000202 |
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Denomination of invention: Metal PTC fast electric heater Granted publication date: 20190326 Pledgee: China Postal Savings Bank Co.,Ltd. Wuhu Fanchang District Branch Pledgor: WUHU HUAZU ENVIRONMENTAL TECHNOLOGY CO.,LTD. Registration number: Y2024980010158 |