CN209299546U - The heat sink strip and heating device and dedicated electric appliance of a kind of PTC thermo-sensitive material heating device - Google Patents

Abstract

The utility model discloses a kind of heat sink strips of PTC thermo-sensitive material heating device, including the radiatinig corrugated clamped by thermally conductive plain film and flanging positioning thermally conductive sheet, the short transverse of the radiatinig corrugated has concave face and folding fan face simultaneously, and the concave face and folded angular surface are vertical with the width direction of the radiatinig corrugated；The radiatinig corrugated engages roll compacting by a pair of of continous way gear of gear-hobbing machine by aluminium strip and forms.Meanwhile the invention also discloses above-mentioned PTC thermo-sensitive material heating devices and dedicated electric appliance using the heat sink strip.The design in the utility model radiatinig corrugated face can make the accumulation of minor amount of water drop and be contained in recess or folded angular surface, moment after secondary booting is not blown out, as the moment of heating device generates heat, micro condensing drip is heated volatilization immediately, use environment is effectively improved, the intensity of heat sink strip and ptc heater and the use reliability and environment-friendly function of ptc heater and electric appliance are improved.

Description

The heat sink strip and heating device and dedicated electric appliance of a kind of PTC thermo-sensitive material heating device

Technical field

The utility model belongs to thermal sensitive ceramics manufacturing technology field, and especially a kind of PTC thermo-sensitive material heating device dissipates Hot item and heating device and dedicated electric appliance.

Background technique

Patent enclosed positive temperature coefficient thermistor heater, the patent No. 200620034186, ripple are S-shapeds, although It is advantageous to improve condensation, but S type cooling fin and trapezoidal reinforcing rib can not be formed and be produced in batches, even if craft or 3D draw a design out Sample, not can avoid because needing to make itself and weld tabs to be sufficiently bonded just due to can guarantee in vacuum welding Shi Bukai, desoldering right yet Bring deforms when clamping the pressurization of fixinig plate up and down of ripple bar, distortion equal strength is low and the defect of failure welding.

Furthermore such as patent corrugated fins item, the patent No. 201320036750.5 are disclosed using with the two-sided of solder Composite band, material cost is more than 1 times or more that common aluminium flake adds soldering weldering foil, since the temperature of welding is much higher than the molten of weldering foil Point temperature, manufacturing cost is high, is also easy desoldering.In addition the technology is further simultaneously disclosed using spot welding, ultrasonic bonding, Laser Welding Etc. techniques, these techniques have the defects that the poor bonding strength between the radiatinig corrugated of heat sink strip and thermally conductive sheet.If using The technique for sticking, although manufacturing cost is low, since in the manufacturing process of heater, radiatinig corrugated and thermally conductive sheet are combined Heat sink strip and fever tablet between have to form simultaneously, hot setting, these will all be completed by hand, can not form scale Production, low efficiency, manufacturing cost are also high.

Air-conditioning be used for a long time in winter shutdown after, the heatsink temperature of heater be rapidly decreased to from 100 DEG C or so 0 DEG C with Under, frosting can be led to because of the variation of environment temperature in this moment, when room temperature is raised to 0 DEG C or more, because the thawing of frost forms water droplet Accumulation forms condensation on a heat sink.Since its radiating surface of the radiatinig corrugated of prior art is continuous level no concave-convex knot Structure, the frost or water droplet of condensation can accumulate in bottom along heating plane, thus there is the heat exchange wind of secondary booting operating instant Product is attached to the hidden danger of the water droplet blowout on radiatinig corrugated surface, leads to customer complaint.

Utility model content

Purpose of utility model: the utility model for traditional heat-dissipating S type cooling fin and trapezoidal reinforcing rib can not batch at Type and production not can avoid because needing to be bonded itself and weld tabs sufficiently just due to can guarantee in vacuum welding Shi Bukai, desoldering right Bring deforms when clamping the pressurization of fixinig plate up and down of ripple bar, distortion equal strength is low and the defect of failure welding, manufacturing cost The problem of height, easy desoldering, the defect of the poor bonding strength between radiatinig corrugated and thermally conductive sheet, provide a kind of PTC thermo-sensitive material The heat sink strip of heating device.

The second of the utility model is designed to provide the heating device containing PTC thermo-sensitive material.

The third of the utility model is designed to provide the dedicated electric appliance using above-mentioned heat sink strip.

Technical solution: in order to reach above-mentioned purpose of utility model, the utility model is specifically achieved like this: a kind of The heat sink strip of PTC thermo-sensitive material heating device, including the radiatinig corrugated clamped by thermally conductive plain film and flanging positioning thermally conductive sheet, institute It states the short transverse of radiatinig corrugated while there is concave face and folding fan face, the concave face and folded angular surface and the radiatinig corrugated Width direction is vertical；The radiatinig corrugated engages roll compacting by a pair of of continous way gear of gear-hobbing machine by aluminium strip and forms, the rolling Indent/the arcuate surface and folded angular surface for being parallel to the high direction of tooth are all provided on each flank of tooth of each pair of gear of tooth machine, by described The opposite engaged transmission of gear, to roll out half arc vertical with the width direction of the radiatinig corrugated recessed simultaneously on the aluminium strip The face of falling into and folded angular surface.

A kind of heating device of PTC thermo-sensitive material, contains above-mentioned heat sink strip.

Wherein, the heating device includes PTC heater element, and the principal component of the PTC heater element is Ba_(1-x) PbxTiO3, the Ti are rutile TiO_2 raw ore through refining, and the molar ratio of Ti is greater than 1.00% in the principal component.

Wherein, the heating device includes PTC heater, and the heater is to have penetrated in hollow heat-conducting aluminium pipe by exhausted Velum cladding between two strip electrode pieces it is in parallel pasted the heat generating core of PTC temperature-sensitive heater element after, repressed aluminum pipe it is thermally conductive Face eliminates the gap of the intracorporal heat generating core of the fever and the aluminum pipe inner wall, forms the PTC heater of surface insulation, The aluminum pipe heat-transfer surface of the heater forms the PTC thermo-sensitive material heating device after being bonded the heat sink strip.

A kind of electric appliance, the heating device containing any of the above-described kind of PTC thermo-sensitive material.

Wherein, the electric appliance be selected from air-conditioning, warm-air drier, hot air curtain device, super bath, dehumidifier, air purifier, dryer, One kind of automobile warm-air or demisting defroster.

The utility model has the advantages that the utility model compared with traditional technology, has the advantages that

(1) radiatinig corrugated face described in the utility model is designed as concave shape or turns up face, can make minor amount of water drop accumulation and It being contained in the groove or turns up in face, the moment after secondary booting is not blown out, as the moment of heating device generates heat, Micro condensing drip is heated volatilization immediately, effectively improves use environment, improves comforts of use and environment-friendly function, this Outside due to needing the radiating surface to heat sink strip to apply biggish pressing force to guarantee to make to be fitted in the forming process of heating device PTC temperature-sensitive heater on radiating surface and integrally combine between heat sink strip, reach optimal heat dissipation effect and the thermal efficiency, this is practical The bumps of novel radiatinig corrugated or the structure for turning up face can also make the radiating surface of heat sink strip in the forming and hardening of heating device, It will not be deformed when by pressing force perpendicular to radiatinig corrugated, greatly increase the intensity of heat sink strip；

(2) droplet that frosting condensation generates is natural, disperse, irregular shunting is in concave face or serrated face and recess and saw In the faying face of tooth, in repeated priming moment, because being heated rapidly on cooling fin without droplet and heater, it can be ensured that both without water droplet Blowout can rapidly dryout the water droplet that is attached in recess or serrated face of product again, so as to effective solution puzzle air-conditioning producer and Thermal sensitive ceramic heater is influenced the problem of the repeated priming moment of commercial applications comprehensive on air-conditioning blowing out water droplet because of condensation；

(3) heat dissipation area of the faying face of concave face, serrated face, recess and sawtooth is far longer than prior art, greatly Improve the heat dissipation area and the thermal efficiency of heater.Be structurally equivalent to add reinforcing rib to radiatinig corrugated, substantially improve and Improve the intensity of heater.Due to frosting water droplet can simultaneously, the irregular height for being diverted to radiatinig corrugated radiating surface and In each concave face of width direction, it is effectively reduced the concentration of subtle droplet existing for prior art and converges in bottom and form product The defect of water or large water droplet；

(4) simple production process, be easy to control, high yield rate, manufacturing cost it is also low；

(5) this technology uses 1.0% mole or more excessive Ti₂O₃, ensure that the content of Ti in formula in 1, ensure that and match The stability of side and the superiority of electrical property, by the PTC heater element of this formula production, yield rate reaches 98% or more, element Thermal stability is good, interpolar is high pressure resistant, especially suitable for requiring in the electric equipment products such as relatively high air-conditioning heater service performance；

(6) apply engaged gears principle, can on existing ripple gear hobbing molding machine original according to the present utility model Reason, Curve guide impeller tooth form are that the continous way cutter or mold of recess, sawtooth and recess plus serrated face are produced in enormous quantities.

Detailed description of the invention

Fig. 1 is the structural schematic diagram of the utility model heat sink strip；

Fig. 2 is the structural schematic diagram of the utility model heating electric appliance.

Specific embodiment

Embodiment 1:

The heat sink strip of PTC thermo-sensitive material heating device as shown in Figure 1, including it is thermally conductive by thermally conductive plain film 1 and flanging positioning The short transverse of radiatinig corrugated 3 clamped by piece 2, the radiatinig corrugated 3 has concave face 301 and folding fan face 302 simultaneously, described Concave face 301 and folded angular surface 302 are vertical with the width direction of the heat sink strip；The radiatinig corrugated passes through gear-hobbing machine by aluminium strip A pair of of continous way gear engagement roll compacting forms, and is all provided on each flank of tooth of each pair of gear of the gear-hobbing machine and is parallel to tooth Gao Fang To indent/arcuate surface and folded angular surface rolled out and institute simultaneously on the aluminium strip by the opposite engaged transmission of the gear State the width direction of radiatinig corrugated vertical half arc concave face and folded angular surface.

Embodiment 2:

The heating device of PTC thermo-sensitive material as shown in Figure 2 generates heat containing heat sink strip described in above-described embodiment, including PTC Element, the principal component of the PTC heater element are Ba_(1-x)PbxTiO3, the Ti be rutile TiO_2 raw ore through refinement and At the molar ratio of Ti is greater than 1.00% in the principal component；It further include PTC heater, the heater is in hollow heat-conducting aluminium pipe After inside having penetrated the heat generating core 1001 for having pasted PTC temperature-sensitive heater element by the parallel connection between two strip electrode pieces of insulating film cladding, The thermal conductive surface of repressed aluminum pipe eliminates the gap of the intracorporal heat generating core of the fever and the aluminum pipe inner wall, and it is exhausted to form surface The PTC heater of edge forms the PTC temperature-sensitive material after the aluminum pipe heat-transfer surface of the heater is bonded the heat sink strip 1002 Expect heating device.

Embodiment 3:

A kind of electric appliance, the heating device containing PTC thermo-sensitive material described in above-described embodiment, the electric appliance are selected from air-conditioning, warm up One kind of blower, hot air curtain device, super bath, dehumidifier, air purifier, dryer, automobile warm-air or demisting defroster.

Claims (5)

1. a kind of heat sink strip of PTC thermo-sensitive material heating device, which is characterized in that including thermally conductive by thermally conductive plain film and flanging positioning Radiatinig corrugated clamped by piece, the short transverse of the radiatinig corrugated have concave face and a folding fan face simultaneously, the concave face and Folded angular surface is vertical with the width direction of the radiatinig corrugated；The radiatinig corrugated is passed through a pair of of continous way tooth of gear-hobbing machine by aluminium strip Wheel engagement roll compacting forms, and is all provided on each flank of tooth of each pair of gear of the gear-hobbing machine and is parallel to the indent in the high direction of tooth/outer Convex surface and folded angular surface are rolled out and the radiatinig corrugated on the aluminium strip simultaneously by the opposite engaged transmission of the gear The vertical half arc concave face and folded angular surface of width direction.

2. a kind of heating device of PTC thermo-sensitive material, which is characterized in that contain heat sink strip described in the claims 1.

3. the heating device of PTC thermo-sensitive material according to claim 2, which is characterized in that the heating device includes PTC Heater, the heater are to have penetrated to be pasted by the in parallel between two strip electrode pieces of insulating film cladding in hollow heat-conducting aluminium pipe After the heat generating core of PTC temperature-sensitive heater element, the thermal conductive surface of repressed aluminum pipe makes the intracorporal heat generating core of the fever and the aluminium The gap of inside pipe wall is eliminated, and the PTC heater of surface insulation is formed, described scattered in the aluminum pipe heat-transfer surface fitting of the heater The PTC thermo-sensitive material heating device is formed after hot item.

4. a kind of electric appliance, which is characterized in that the heater containing any PTC thermo-sensitive material described in the claims 2 ~ 3 Part.

5. electric appliance according to claim 4, the electric appliance is selected from air-conditioning, warm-air drier, hot air curtain device, super bath, dehumidifier, sky One kind of gas purifier, dryer, automobile warm-air or demisting defroster.