CN206380110U - A kind of PTC water-warming heaters - Google Patents

Abstract

The utility model discloses a kind of PTC water-warming heaters, including liquid entrance pipeline, liquid manifold device and at least two heating components, the heating component includes PTC heating cores and two fluid passages, two fluid passages are located at the both sides of PTC heating cores respectively, PTC heating cores and fluid passage in any heating component are arranged in a plane with other PTC heating cores and fluid passage, and the two ends of all liq passage pass through liquid manifold device and liquid entrance pipeline communication.The utility model can improve the heat transfer efficiency of PTC heating cores, improve the heating power of PTC water-warming heaters, reduce water resistance, save the energy, reduce cost.

Description

A kind of PTC water-warming heaters

Technical field

The utility model is related to a kind of heater, more particularly to a kind of PTC water-warming heaters.

Background technology

The problem of contradiction of the fuel oil supply and demand become increasingly conspicuous for reply and environmental pollution, countries in the world are promoting new energy The development of automobile.The waste heat of the straight grip engine of orthodox car one depends on the engine of automobile as heating thermal source, this mode, That is the heating of in-car could be implemented in the state of engine work.In addition, the efficiency of this heating system is very Low, start needs 6-10min to heat in the winter time after engine.But electric automobile does not have engine, hybrid vehicle In-car is also required to heating when to stall.

At present, due to the distinctive positive temperature coefficient resistivity-temperature characteristics of PTC-ceramic, it has temperature automatically controlled, and temperature is with voltage wave The dynamic influence excellent electrical property such as small and will not burn, the flames of anger, the security feature such as service life length.Made by PTC-ceramic Ptc heater be a kind of preferable heater, it not only solves and taken inside electric automobile under cryogenic well Heat source required for warm wind screen defrosting, moreover it is possible to applied to the heat management system of electrokinetic cell, environment temperature compared with Electrokinetic cell is heated when low, and because its excellent insulating properties ensure that the security performance of electric automobile.

Electric automobile heating ptc heater has wind to warm up two kinds of hot-water heating, PTC water-warming heaters, using PTC heating element heaters as Heating core, is fabricated to PTC heating tubes, special aluminium alloy heat carrier is inserted into, by heating and anti-freezing liquid, via evaporator Warm wind is provided to in-car, warm wind is soft comfortable, and temperature stabilization is moderate, uses safety, efficient energy-saving.In addition, PTC water heaters are also Available for electric automobile power battery heat management system, heated by heating and anti-freezing liquid to battery.

The ptc heater use environment used in electric automobile field has following features：First, operating voltage is high, at least exists More than 320V, typically in 320VDC-750VDC；2nd, the voltage of electric automobile is not constant in operation, but with fortune The loss of electricity in row and decline；3rd, because automobile is that, in outdoor application, the change of temperature in four seasons and humidity is big；4th, this is heated Device is arranged in automobile and used, and needs more preferable anti-shake performance, and the requirement to service life is higher, need to reach more than 10 years； 5th, in order to ensure electric automobile paddling, meet with rainwater or the security performance for the extreme environment such as part is immersed, it is desirable to PTC The dust-proof water performance of heater is preferably up to IP67, it is to avoid in-car or car periphery personnel are caused with the unexpected injury of electric shock；6th, mesh The PTC water-warming heaters of the preceding existing widely used similar German Ai Beihe structures of in the market, have the disadvantage that：(1) structure Safety defect：Ai Beihe heater structures are as follows, PTC heating cores insertion die casting aluminium groove (being used as heat conduction tank), and aluminium groove is placed on In plastic casing, water (anti-icing fluid) flows between plastic casing and aluminium groove, and PTC heating cores conduct heat by heating aluminium groove To water (in anti-icing fluid).To prevent the electric-controlled plate above the powered PTC heating cores of water (anti-icing fluid) infiltration or aluminium groove, it is necessary to Reliable sealing is carried out between plastic casing and heat conduction aluminum tank, once sealing between the two goes wrong, anti-icing fluid will Permeated at faying face and touch PTC heating element heaters, or electric-controlled plate, be so easy to the safe thing that electric leakage triggers occur Therefore.Therefore there is certain potential safety hazard in the PTC water heaters of this structure.(2) cost disadvantage of the structure：Ai Beihe heaters Structure inserts die casting aluminium slot structure using PTC heating cores, the material cost and cost of manufacture of PTC heating cores and die casting aluminium groove compared with It is high；(3) the structural thermal effect is poor：PTC heating cores insert heat conduction aluminum groove, do not allow between the two easy to attach close, have caused Relatively large thermal resistance, have impact on PTC heat conduction so that PTC power is not easy to play.7th, in the market it is existing its Had the disadvantage that in its PTC water-warming heater, such as east PTC water-warming heaters, its structure：(1) PTC heating cores and water flowing flat tube (i.e. fluid passage) is spaced, and a water flat tube is shared between two PTC heating cores, and such arrangement is not easy PTC to produce Raw heat is taken away, it is difficult to give full play to PTC power, causes the waste of heat；(2) PTC heating cores and water flowing flat tube be (i.e. Fluid passage) spaced structure is because water flowing flat tube (i.e. fluid passage) is flat and quantity is few, and water resistance is larger.Although passing through The adjustment of flat tube size can also reduce water resistance, but influence whether heat-transfer effect.

Utility model content

Utility model purpose：In order to improve the efficiency of heating surface of PTC water-warming heaters, the utilization rate of PTC heating tubes is improved, this Utility model provides a kind of PTC water-warming heaters.

Technical scheme：The utility model provides a kind of PTC water-warming heaters, including liquid entrance pipeline, liquid manifold Device and at least two heating components, the heating component include PTC heating cores and two fluid passages, two fluid passages Be located at the both sides of PTC heating cores respectively, the PTC heating cores and fluid passage in any heating component and other PTC heating cores and Fluid passage is arranged in a plane, and the two ends of all liq passage are connected by liquid manifold device and liquid entrance pipeline It is logical.

Further, in addition to support chip, the support chip is inserted between two adjacent heating components.

Further, the support chip is made up of metal or plastics.

Further, it is Nian Jie or tight by machinery by silica gel between the PTC heating cores, support chip and fluid passage Match somebody with somebody.

Further, the fluid passage is flat metal tube.

Further, the fluid passage is made of aluminum or copper.

Further, the PTC heating cores include PTC ceramic element, metal electrode film, insulation material layer, the insulation Material layer wraps PTC ceramic element and metal electrode film, and insulation material layer is Kapton or aluminum oxide substrate or led Hot silica gel piece.

Further, also it is enclosed with aluminum pipe outside the PTC heating cores.

Further, the metal electrode film is drawn from PTC heating cores, for connecting external circuit.

Further, in addition to electrode slice protecting crust, the electrode slice protecting crust wraps external metallization electrode slice.

Operation principle：Water (anti-icing fluid) enters from fluid inlet line, and each heating group is flowed into by liquid manifold device Heat is reached by fluid passage by heat transfer after PTC heating tubes heating by fluid passage in part, fluid passage, water is (anti- Freeze liquid) be heated after collect from the liquid manifold device of opposite side, then from liquid outlet conduit flow out.

Beneficial effect：The utility model provides a kind of PTC water-warming heaters, and by the design of heating component, every PTC adds Heat pipe two fluid passages of collocation, there is fluid passage every PTC heating tubes both sides, considerably increases PTC heating tubes and current Between heat exchange area；For PTC heating tubes in the prior art and the spaced structure of fluid passage of comparing, this practicality is new Type can be heated in the case of using the PTC heating tubes of identical quantity to more fluid passages, PTC heating tubes Heat transfer efficiency is greatly improved, so as to greatly improve the heating power of PTC water-warming heaters, is saved the energy, is reduced use cost；Liquid The increase of body passage so that while the amount of liquid increase passed through, so as to reduce water resistance.Support chip is located between heating component, It can prevent fluid passage from deforming, also function to the effect of reinforcing.

Brief description of the drawings

Fig. 1 is the structural representation of PTC water-warming heaters；

Fig. 2 is the side view of PTC heating tubes；

Fig. 3 is the sectional view of PTC heating tubes.

Embodiment

The utility model is described in further detail with specific embodiment below in conjunction with the accompanying drawings.

As shown in figure 1, PTC water-warming heaters include liquid entrance pipeline 1, liquid manifold device 2 and at least two There are six heating components 3 in heating component 3, the present embodiment, the heating component 3 includes PTC heating cores 31 and two liquid lead to Road 32, the fluid passage 32 that two fluid passages 32 are located in the both sides of PTC heating cores 31, the present embodiment respectively is aluminium flat conduit, Can also be made of the preferable metal of other thermal conductivity, the PTC heating cores 31 and fluid passage 32 in any heating component 3 with Other PTC heating cores 31 and fluid passage 32 are arranged in a plane, the two ends of fluid passage 32 by liquid manifold device 2 with Liquid entrance pipeline 1 is connected.

Certainly, PTC water-warming heaters can also include other heating cores and fluid passage in addition to heating component 3, with PTC heating cores and fluid passage in heating component 3 are arranged in approximately the same plane, and arrangement mode is such as：Fluid passage, heating tube, Fluid passage, fluid passage, heating tube, fluid passage, heating tube, fluid passage ...

Support chip 4 is also inserted between two neighboring heating component 3, support chip 4 is made up of metal or plastics, for supporting Fluid passage 32, prevents fluid passage 32 from deforming.Aluminium flat conduit internal diameter is narrower, and material is softer, and support chip 32 can support aluminium flat conduit, Make it that liquid communication will not be caused to have some setbacks or even block because of deformation.When there is other PTC heating cores and fluid passage, Support chip 4 can also be inserted between fluid passage and other PTC heating cores or fluid passage in heating component 3, is acted on and this The effect of support chip 4 is identical in embodiment.

Firmly it is heating and curing between the PTC heating cores 31, support chip 4 and fluid passage 32 by the way that silica gel is Nian Jie, or Directly pass through mechanical close-fitting.As shown in figure 1, three put in order for：Fluid passage 32, PTC heating cores 31, fluid passage 32nd, support chip 4, fluid passage 32, PTC heating cores 31, fluid passage 32, support chip 4 ... fluid passage 32, PTC heating cores 31st, fluid passage 32.

As shown in figure 3, in the present embodiment, in order to reinforce PTC heating cores 31, aluminum pipe is wrapped with PTC heating cores 31 314, as PTC heating tubes, PTC heating cores 31 include PTC ceramic element 311, metal electrode film 312, insulation material layer 313, The insulation material layer 313 wraps PTC ceramic element 311 and metal electrode film 312, fill in aluminum pipe 314 by rolling or Concora crush formation PTC heating tubes.In actual use, aluminum pipe 314 can not also be used, PTC is wrapped with the sealed bundle of insulation material layer 313 Ceramic component 311 and metal electrode film 312.Insulation material layer 313 is Kapton or aluminum oxide substrate or heat conduction Silica gel piece.Metal electrode film 312 is drawn from PTC heating cores 31, for connecting external circuit, as shown in Fig. 2 external metallization is electric Electrode slice protecting crust 315 is also enclosed with pole piece 312, safety protection function is played, short circuit between electrode is also prevented from.

It is used as preferred, every PTC heating core two fluid passages of collocation in the present embodiment, every PTC heating core two There is a fluid passage side, considerably increases the heat exchange area between PTC heating tubes and current；And PTC adds in the prior art Heat pipe is spaced with fluid passage, is heated positioned at middle fluid passage by two PTC heating tubes, due to heat exchange area Small, the heat that PTC is produced is not easy to be pulled away, and power is difficult to give full play to..The utility model can identical quantity PTC In the case of heating tube, more fluid passages can be heated, the heat transfer efficiency of PTC heating tubes is greatly improved, so that Greatly improve the heating power of PTC water-warming heaters；The increase of fluid passage so that while the amount of liquid increase passed through, so that Water resistance is reduced, and heat-transfer effect will not be influenceed as increasing the width of fluid passage.

It should be noted that the unaccounted part of the utility model is prior art.Above example is only to illustrate this The technological thought of utility model, it is impossible to which protection domain of the present utility model is limited with this, it is every according to the utility model proposes Technological thought, any change done on the basis of technical scheme, each falls within the utility model protection domain.

Claims (10)

1. a kind of PTC water-warming heaters, it is characterised in that including liquid entrance pipeline (1), liquid manifold device (2) and At least two heating components (3), the heating component (3) includes PTC heating cores (31) and two fluid passages (32), two liquid Body passage (32) is located at PTC heating cores (31) and liquid in the both sides of PTC heating cores (31), any heating component (3) respectively Passage (32) is arranged in a plane, the two of all liq passage (32) with other PTC heating cores (31) and fluid passage (32) End is connected by liquid manifold device (2) with liquid entrance pipeline (1).

2. PTC water-warming heaters according to claim 1, it is characterised in that also including support chip (4), the support chip (4) it is inserted between two adjacent heating components (3).

3. PTC water-warming heaters according to claim 2, it is characterised in that the support chip (4) is by metal or plastics It is made.

4. the PTC water-warming heaters according to Claims 2 or 3, it is characterised in that the PTC heating cores (31), support chip (4) it is Nian Jie or pass through mechanical close-fitting by silica gel between fluid passage (32).

5. the PTC water-warming heaters according to claim 1 or 2 or 3, it is characterised in that the fluid passage (32) is gold Belong to flat tube.

6. PTC water-warming heaters according to claim 5, it is characterised in that the fluid passage (32) is by aluminium or copper Into.

7. the PTC water-warming heaters according to claim 1 or 2 or 3, it is characterised in that the PTC heating cores (31) include PTC ceramic element (311), metal electrode film (312), insulation material layer (313), the insulation material layer (313) wrap PTC Ceramic component (311) and metal electrode film (312), insulation material layer (313) are Kapton or aluminum oxide substrate or led Hot silica gel piece.

8. PTC water-warming heaters according to claim 7, it is characterised in that the PTC heating cores (31) are also enclosed with outside Aluminum pipe (314).

9. PTC water-warming heaters according to claim 7, it is characterised in that the metal electrode film (312) adds from PTC Drawn in hot core (31), for connecting external circuit.

10. PTC water-warming heaters according to claim 9, it is characterised in that also including electrode slice protecting crust (315), institute State electrode slice protecting crust (315) and wrap external metallization electrode slice (312).