CN207751184U - Cold water plate and heater comprising cold water plate - Google Patents

Abstract

The utility model discloses a kind of cold water plate and include the heater of cold water plate, cold water plate includes flat and cold water pipe, cold water pipe is embedded in flat, cold water pipe includes water inlet, water outlet, more piece pipeline section and bending part, it is connected by bending part between pipeline section and pipeline section, inlet and outlet stretch out flat.Heater includes PTC heating plates or PTC heating tubes and cold water plate, and PTC heating plates or PTC heating tubes are bonded with cold water plate by way of pasting or being mechanically fixed.Reliability height is used for a long time in the utility model, not will produce the undesirable security risk of leakproofness；Water resistance is reduced on by a relatively large margin；PTC heating plates or heating tube are directly attached in cold water plate, and heating is direct, and heat transfer efficiency is high, and reduces the volume of heater.

Description

Cold water plate and heater comprising cold water plate

Technical field

The utility model belongs to new-energy automobile accessories field more particularly to a kind of cold water plate and the heating comprising cold water plate Device.

Background technology

The problem of to cope with the contradiction of fuel oil supply and demand to become increasingly conspicuous and environmental pollution, countries in the world are promoting new energy The development of automobile.The waste heat of one straight grip engine of orthodox car depends on the engine of automobile as heating heat source, this mode, That is it could implement interior heating in the state that engine works.In addition, the efficiency of this heating system is very It is low, need 6-10min that could heat after starting engine in winter.But electric vehicle does not have engine, hybrid vehicle Car is also required to heat when to stall.

Currently, due to the distinctive positive temperature coefficient resistivity-temperature characteristics of PTC ceramics, have temperature automatically controlled, temperature is with voltage wave It is dynamic to influence the excellent electrical property such as small and burn and the flames of anger, service life length etc. security feature.By PTC ceramics system The ptc heater of work is a kind of ideal heating device, it is not only solved inside electric vehicle under cryogenic well Heating and the required heat source of wind screen defrosting, moreover it is possible to be applied to the heat management system of power battery, in environment temperature Power battery is heated when relatively low, and since its excellent insulation performance ensures the security performance of electric vehicle.

Electric vehicle heating ptc heater has wind to warm up two kinds of hot-water heating, and PTC water-warming heaters are with PTC heating elements Fever core, is fabricated to PTC heating tubes, dedicated aluminium alloy heat carrier is inserted into, by heating and anti-freezing liquid, via evaporator There is provided warm wind to car, warm wind is soft comfortable, temperature stablize it is moderate, it is safe to use, it is energy-efficient.In addition, PTC water heaters are also It can be used for electric automobile power battery heat management system, heated to battery by heating and anti-freezing liquid.

There are following features in the ptc heater use environment that electric vehicle field uses：First, operating voltage is high, at least exist 320V or more, generally in 320VDC-750VDC；Second is that the voltage of electric vehicle is not constant in operation, but with The loss of electricity in operation and decline；Third, since automobile is in outdoor application, the variation of temperature in four seasons and humidity is big；Fourth, this Heater is mounted in automobile and uses, and needs better anti-shake performance, and the requirement higher to service life, need to reach 10 years with On；Fifth, in order to ensure that electric vehicle is paddling, meeting with rainwater or the partly security performance of the extreme environments such as immersed, it is desirable that The dust-proof water performance of ptc heater is preferably up to IP67, avoids the unexpected injury that interior or vehicle periphery personnel are caused with electric shock；Six It is the PTC water-warming heaters of existing widely used similar Germany Ai Beihe structures currently on the market, has the disadvantage that：1, the knot Structure safety defect：Ai Beihe heater structures are as follows, and PTC heating cores are inserted into die casting aluminium slot (as heat conduction sink), and aluminium slot is placed In plastic shell, water (anti-icing fluid) flows between plastic shell and aluminium slot, and PTC heating cores pass heat by heating aluminium slot It leads in water (anti-icing fluid).To prevent water (anti-icing fluid) from penetrating into the electric-controlled plate above the PTC heating cores or aluminium slot of electrification, it is necessary to Reliable sealing is carried out between plastic shell and heat conduction aluminum sink, once sealing between the two goes wrong, anti-icing fluid is just PTC heating elements or electric-controlled plate can be permeated and touched at faying face, and it is easy to appear the safe things that electric leakage causes in this way Therefore.Therefore there are some potential safety problemss for the PTC water heaters of this structure.2, the cost disadvantage of the structure：Ai Beihe heaters Structure is inserted into die casting aluminium slot structure using PTC heating cores, the material cost and cost of manufacture of PTC heating cores and die casting aluminium slot compared with It is high；3, the structural thermal effect is poor：PTC heating cores are inserted into heat conduction aluminum slot, do not allow between the two easy to attach close, have caused phase To larger thermal resistance, the heat conduction of PTC is affected so that the power of PTC is not easy to play.Seven separately have cisten mechanism currently on the market Water-warming heater, have the disadvantage that in structure：1, for PTC heating cores by silicone adhesive between water flowing flat tube, water flowing is flat Pipe and the hydroecium at both ends are by soldering connection, since PTC heating temperatures are at 200 degree or more, and the liquid in hydroecium and water flowing flat tube Body (water or anti-icing fluid) temperature is very low (at 0 degree or less), and weld strength may be influenced for a long time by starting repeatedly, influence water The leakproofness of case.2, PTC heating cores and the spaced structure of water flowing flat tube be since water flowing flat tube is flat and quantity is few, water resistance compared with Greatly.

Utility model content

Purpose of utility model：In order to solve the bad security risk of bringing of ptc heater leakproofness of the existing technology Problem, the utility model provide a kind of cold water plate.

Another object of the present invention is to provide a kind of heater including cold water plate.

Technical solution：A kind of cold water plate, including flat and cold water pipe, cold water pipe are embedded in flat, and cold water pipe includes Water inlet, water outlet, more piece pipeline section and bending part, are connected between pipeline section and pipeline section by bending part, inlet and outlet are stretched Go out flat.Cold water pipe uses metal material, and heat-transfer effect is more preferably.

Further, the cold water pipe is embedded in by the way of pressure pipe, drilling or combination in flat.

Further, the pipeline section is long straight pipe, and the bending part stretches out flat.The structure easily facilitates production system Make, the hole among flat for being inserted into cold water pipe is also long straight, convenient for punching.

A kind of heater including cold water plate, including PTC heating plates and cold water plate, PTC heating plates pass through viscous with cold water plate The mode pasted or be mechanically fixed is bonded.

Further, there are two PTC heating plates, two PTC heating plates fit with the two sides of cold water plate respectively.

Further, there are two cold water plates, two sides of two cold water plates respectively with PTC heating plates fits.

Further, the PTC heating plates include PTC ceramic element, metal electrode film, insulation material layer, the insulation Material layer wraps PTC ceramic element and metal electrode film, and metal electrode film is drawn from PTC heating plates.

Further, the PTC heating plates further include aluminum pipe, and aluminum pipe is wrapped in the outer compression moulding of insulation material layer.

Further, insulation material layer is Kapton or aluminum oxide substrate or heat-conducting silica gel sheet.

A kind of heater including cold water plate, including PTC heating tubes and cold water plate, the one side of cold water plate add with multiple PTC Heat pipe is bonded by way of pasting or being mechanically fixed.

Advantageous effect：A kind of cold water plate provided by the utility model and the heater comprising cold water plate, cold water is from water inlet It is exported from water outlet after passing into cold water pipe, heat is transmitted to water by heating aluminium slot and (prevented by PTC heating plates (or heating tube) Freeze liquid) in, reliability height is used for a long time, not will produce the undesirable security risk of leakproofness；Compared to the production of existing cisten mechanism Product, by a relatively large margin on reduce water resistance；Compared to the structure of existing Ai Beihe heaters, PTC heating plates (or heating tube) are direct It is fitted in cold water plate, heating is direct, and heat transfer efficiency is high, and reduces the volume of heater.

Description of the drawings

Fig. 1 is the structural schematic diagram of heater of the embodiment one comprising cold water plate；

Fig. 2 is the side view of embodiment one；

Fig. 3 is the structural schematic diagram of heater of the embodiment two comprising cold water plate；

Fig. 4 is the side view of embodiment two.

Specific implementation mode

The utility model is described in further detail in the following with reference to the drawings and specific embodiments.

Embodiment one：As shown in Figure 1, 2, include the heater of cold water plate, including PTC heating plates 11 and cold water plate 12, PTC Heating plate 11 is bonded with cold water plate 12 by way of stickup, can also be fixed by way of the machinery such as screw.The cold water Plate 12 includes flat 13 and cold water pipe 14, and cold water pipe 14 is embedded in flat 13, and cold water pipe 14 includes water inlet 15, water outlet 16, more piece pipeline section 17 (being covered in by PTC heating plates 11, be represented by dashed line in figure) and bending part 18, pipeline section 17 and pipeline section 17 it Between connected by bending part 18, water inlet 15 and water outlet 16 stretch out flat.The pipeline section 17 is long straight pipe, the bending Flat 13 is stretched out in portion 18.The pipeline section 17 of the cold water pipe 14 can be used pressure pipe, drilling or the mode of combination and be embedded in flat 13 In.The structure, which easily facilitates, to be manufactured, and the hole among flat 13 for being inserted into cold water pipe 14 is also long straight, convenient for punching Operation.

The PTC heating plates 11 and cold water plate 12 of different number can also be set, such as there are two PTC heating plates 11, two Two sides of the PTC heating plates 11 respectively with cold water plate 12 fits, and cold water plate 12 is clipped in the middle.For another example there are two cold water plates 12, Two sides of two cold water plates 12 respectively with PTC heating plates 11 fits, and PTC heating plates 11 are clipped in the middle.

The PTC heating plates 11 include PTC ceramic element, metal electrode film 19, insulation material layer, aluminum pipe, the insulation Material layer wraps PTC ceramic element and metal electrode film 19, and aluminum pipe is wrapped in the outer compression moulding of insulation material layer, metal electrode Piece 19 is drawn from PTC heating plates 11, for accessing power supply.Aluminum pipe can not also be used, is directly wrapped with insulation material layer PTC ceramic element and metal electrode film.Kapton or aluminum oxide substrate or heat conductive silica gel may be used in insulation material layer Piece.

Embodiment two：As shown in Figures 3 and 4, include the heater of cold water plate, including PTC heating tubes 21 and cold water plate 22, it is cold The one side of water plate 22 is bonded with five PTC heating tubes 21 by way of pasting or being mechanically fixed, wherein of PTC heating tubes 21 Number is arranged as required to.The PTC heating tubes 21 include PTC ceramic element, metal electrode film 29, insulation material layer, aluminum pipe, institute It states insulation material layer and wraps PTC ceramic element and metal electrode film 29, aluminum pipe is wrapped in the outer compression moulding of insulation material layer, gold Belong to electrode slice 29 to draw from PTC heating tubes 21.Aluminum pipe can not also be used, directly wraps PTC ceramics with insulation material layer Element and metal electrode film.The structure of cold water plate 22 is identical as embodiment one.

Claims (10)

1. a kind of cold water plate, which is characterized in that including flat and cold water pipe, cold water pipe is embedded in flat, and cold water pipe includes Water inlet, water outlet, more piece pipeline section and bending part, are connected between pipeline section and pipeline section by bending part, inlet and outlet are stretched Go out flat.

2. cold water plate according to claim 1, which is characterized in that the cold water pipe uses pressure pipe, drilling or the side of combination Formula is embedded in flat.

3. cold water plate according to claim 1, which is characterized in that the pipeline section is long straight pipe, and the bending part stretches out Flat.

4. a kind of heater including cold water plate as described in claim 1, which is characterized in that including PTC heating plates and cold water Plate, PTC heating plates are bonded with cold water plate by way of pasting or being mechanically fixed.

5. the heater according to claim 4 for including cold water plate, which is characterized in that there are two PTC heating plates, two PTC heating plates fit with the two sides of cold water plate respectively.

6. the heater according to claim 4 for including cold water plate, which is characterized in that there are two cold water plates, two cold water Two sides of the plate respectively with PTC heating plates fits.

7. the heater according to claim 4 for including cold water plate, which is characterized in that the PTC heating plates include PTC potteries Porcelain element, metal electrode film, insulation material layer, the insulation material layer wrap PTC ceramic element and metal electrode film, metal Electrode slice is drawn from PTC heating plates.

8. the heater according to claim 7 for including cold water plate, which is characterized in that the PTC heating plates further include aluminium Pipe, aluminum pipe are wrapped in the outer compression moulding of insulation material layer.

9. the heater according to claim 7 for including cold water plate, which is characterized in that insulation material layer is that polyimides is thin Film or aluminum oxide substrate or heat-conducting silica gel sheet.

10. a kind of heater including cold water plate as described in claim 1, which is characterized in that including PTC heating tubes and cold water Plate, the one side of cold water plate are bonded with multiple PTC heating tubes by way of pasting or being mechanically fixed.