CN203691655U - PTC electric heating assembly, electric liquid heater and electric vehicle warming system thereof - Google Patents
PTC electric heating assembly, electric liquid heater and electric vehicle warming system thereof Download PDFInfo
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- CN203691655U CN203691655U CN201320800485.3U CN201320800485U CN203691655U CN 203691655 U CN203691655 U CN 203691655U CN 201320800485 U CN201320800485 U CN 201320800485U CN 203691655 U CN203691655 U CN 203691655U
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- 238000005485 electric heating Methods 0.000 title claims abstract description 49
- 239000007788 liquid Substances 0.000 title claims abstract description 29
- 238000010792 warming Methods 0.000 title abstract 2
- 239000000919 ceramic Substances 0.000 claims abstract description 79
- 238000010438 heat treatment Methods 0.000 claims abstract description 30
- 238000009413 insulation Methods 0.000 claims description 70
- 239000002826 coolant Substances 0.000 claims description 24
- 230000004308 accommodation Effects 0.000 claims description 18
- 210000002435 tendon Anatomy 0.000 claims description 17
- 230000017525 heat dissipation Effects 0.000 claims description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 8
- 238000003032 molecular docking Methods 0.000 claims description 7
- 239000004033 plastic Substances 0.000 claims description 7
- 229920003023 plastic Polymers 0.000 claims description 7
- 239000000203 mixture Substances 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 17
- 230000005540 biological transmission Effects 0.000 abstract 1
- 239000010410 layer Substances 0.000 description 14
- 229910052782 aluminium Inorganic materials 0.000 description 6
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 6
- 238000005245 sintering Methods 0.000 description 6
- 229910052751 metal Inorganic materials 0.000 description 5
- 239000002184 metal Substances 0.000 description 5
- 229910010293 ceramic material Inorganic materials 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 238000005457 optimization Methods 0.000 description 4
- 238000005728 strengthening Methods 0.000 description 4
- 238000011900 installation process Methods 0.000 description 3
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- 239000004411 aluminium Substances 0.000 description 2
- 230000004888 barrier function Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000000498 ball milling Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000008570 general process Effects 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 238000010137 moulding (plastic) Methods 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 238000007747 plating Methods 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 239000011241 protective layer Substances 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000000741 silica gel Substances 0.000 description 1
- 229910002027 silica gel Inorganic materials 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
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Abstract
For overcoming the problems of single form, no enough heating power and insufficient heat transmission efficiency in the prior-art PTC electric heating assembly, the utility model provides a PTC electric heating assembly, an electric liquid heater and an electric vehicle warming system thereof. The PTC electric heating assembly comprises a heat conducting housing, an insulating heat conducting layer and a PTC heating core. The PTC heating core and the insulating heat conducting layer are arranged in the heat conducting housing. The insulating heat conducting layer is arranged between the PTC heating core and the heat conducting housing. The PTC heating core comprises a first electrode module, a second electrode module and a PTC ceramic set. The PTC ceramic set is sandwiched between the first electrode module and the second electrode module. The PTC ceramic set comprises a plurality of vertically stacked PTC ceramic sheets. Two electrodes of each PTC ceramic sheet are respectively connected with the first electrode module and the second electrode module. The PTC electric heating assembly provided by the utility model has improved heating efficiency and improved heat conduction efficiency. Furthermore the PTC electric heating assembly has advantages of better insulating effect, simple assembling and higher safety.
Description
Technical field
The utility model relates to heating field, especially refers to the field of PTC electric heating assembly.
Background technology
At present, the English full name of existing traditional PTC(: Positive Temperature Coefficient, Chinese full name: semistor) electric heating assembly is following structure: it comprises a PTC heat generating core, insulating barrier, aluminum pipe and corrugated fin, described insulating barrier is fit in aluminum pipe after wrapping up described PTC heat generating core, then sealing two ends, and this corrugated fin is sticked on to the surface of aluminum pipe.Its PTC heat generating core comprises upper and lower two plate electrode sheets and is located in the some potsherds between two electrode slices; So, the heat that its inner PTC heat generating core produces passes to corrugated fin by aluminum pipe, passes to coolant, finally realizes the object of heated cooling medium.
But the PTC electric heating assembly form of this kind of mode is more single, in some field, such as the liquid electric heater field on automobile, its heating power and heat transfer efficiency are obviously not enough.
Utility model content
In order to overcome, PTC electric heating assembly form in prior art is single, the problem of heating power and heat transfer efficiency deficiency, and the utility model embodiment provides a kind of PTC electric heating assembly, liquid electric heater and electric motor car heating system thereof.
The utility model embodiment provides a kind of PTC electric heating assembly on the one hand, comprises heat conduction shell, thermal insulation layer and PTC heat generating core;
Described PTC heat generating core and described insulating heat-conductive are placed in described heat conduction shell; Described thermal insulation layer is between described PTC heat generating core and described heat conduction shell;
Described PTC heat generating core comprises the first electrode module, the second electrode module and PTC group of ceramics; Described PTC group of ceramics is located between described the first electrode module and described the second electrode module;
Described PTC group of ceramics comprises the PTC potsherd of some stacked on top of one another, and two electrodes of described PTC potsherd are electrically connected with described the first electrode module and described the second electrode module respectively.
The PTC electric heating assembly that the utility model embodiment provides, adopts left and right that electrode module, middle clamping PTC group of ceramics are set, and wherein PTC group of ceramics comprises the structure of the PTC potsherd of stacked on top of one another; Compare existing single form, more novel heat form is provided, and improved its heating power, its heat transfer efficiency is also significantly improved.Meanwhile, its insulation effect is better, and assembling is simple, and fail safe is higher.
Preferably, described the first electrode module comprises the first Insulating frame and the first electrode block, and described the first electrode block is fixed in described the first Insulating frame;
Described the second electrode module comprises the second Insulating frame and the second electrode block, and described the second electrode block is fixed in described the second Insulating frame;
Described the first Insulating frame and described the second Insulating frame coordinate, and between forms spatial accommodation, and described PTC group of ceramics is contained in this spatial accommodation;
Two electrodes of described PTC potsherd are directly fitted with described the first electrode block and described the second electrode block respectively, realize electrical connection.Adopt this kind of mode; as mentioned above; can form the first Insulating frame and the second Insulating frame on the surface of the first electrode block, the second electrode block; when can playing fixing protective effect; play the effect of insulating protection; can on above-mentioned Insulating frame, form docking structure, the first electrode module and the second electrode module are formed to docking mechanically, PTC heat generating core is formed to an overall structure simultaneously.
Preferably, described the first Insulating frame is plastic on described the first electrode block surface, and described the second Insulating frame is plastic on described the second electrode block surface.
Preferably, described the first electrode module is provided with the first electrode column; Described the first electrode column stretches out from described the first Insulating frame;
Described the second electrode module is provided with the second electrode column; Described the second electrode column stretches out from described the second Insulating frame.
Preferably, the cooperation place of described the first Insulating frame and described the second Insulating frame is formed with corrugated occlusion structure;
Corrugated occlusion structure docking on corrugated occlusion structure on described the first Insulating frame and described the second Insulating frame, is structure as a whole both interlocks.Adopt this kind of mode, form indenting corrugated lay configuration in the side of Insulating frame, strengthened the binding ability between Insulating frame, prevent that the first electrode module and the second electrode module from scattering naturally.
Preferably, described the first electrode module comprises the first main electrode module and the first auxiliary electrode module of stacked on top of one another; Described the second electrode module comprises the second main electrode module and the second auxiliary electrode module of stacked on top of one another; Described PTC group of ceramics comprises main PTC group of ceramics and secondary PTC group of ceramics;
Described the first main electrode module comprises the first main electrode piece and the first main insulation framework, and described the first main electrode piece is fixed in described the first main insulation framework;
Described the first auxiliary electrode module comprises the first auxiliary electrode piece and the first secondary Insulating frame, and described the first auxiliary electrode piece is fixed in described the first secondary Insulating frame;
Described the second main electrode module comprises the second main electrode piece and the second main insulation framework, and described the second main electrode piece is fixed in described the second main insulation framework;
Described the second auxiliary electrode module comprises the second auxiliary electrode piece and the second secondary Insulating frame, and described the second auxiliary electrode piece is fixed in described the second secondary Insulating frame;
Described the first main insulation framework and described the second main insulation framework coordinate, and between forms spatial accommodation, and described main PTC group of ceramics is contained in this spatial accommodation;
Described the first secondary Insulating frame and described the second secondary Insulating frame coordinate, and between forms spatial accommodation, and described secondary PTC group of ceramics is contained in this spatial accommodation;
Described the first main electrode piece is electrically connected with described the first auxiliary electrode piece, and described the second main electrode piece is electrically connected with described the second auxiliary electrode piece.
Adopt the structure after above-mentioned optimization, the performance of further strengthened its insulation, protecting, has further improved its security performance, greatly improved its heating power and heat transfer efficiency, and its installation process is reasonable simultaneously, is simple and easy to implement.
Preferably, the lower end of described the first main electrode piece and described the second main electrode piece is provided with convex tendon, and the upper end of described the first auxiliary electrode piece and the second auxiliary electrode piece is provided with groove;
The convex tendon of described the first main electrode piece inserts in the groove of described the first auxiliary electrode piece, and the convex tendon of described the second main electrode piece inserts in the groove of described the second auxiliary electrode piece.The electrical connection of this kind of mode is more reliable and more stable.
Preferably, the lower end of described the first main insulation framework is provided with the first cross-brace bar, and the lower end of described the second main insulation framework is provided with the second cross-brace bar;
Described main PTC group of ceramics is supported on described the first cross-brace bar and described the second cross-brace bar;
The lower end of described the first secondary Insulating frame is provided with the first convex supporting member, and the lower end of described the second secondary Insulating frame is provided with the second convex supporting member;
Described secondary PTC group of ceramics is supported on described the first convex supporting member and described the second convex supporting member.Adopt said structure, can effectively main PTC group of ceramics and secondary PTC group of ceramics be fixed in Insulating frame, prevent that it from too much causing the cracked phenomenon of PTC potsherd to occur because PTC potsherd is stacking.
Preferably, described housing is the hollow structure of an end opening, is formed with the core body container cavity that holds described PTC heat generating core in described housing; Be provided with stage portion at this opening part;
The upper surface of described the first main insulation framework and described the second main insulation framework is equipped with hush panel; Hush panel composition cover plate on described the first main insulation framework and the second main insulation framework;
Described cover plate coordinates with described stage portion, and described PTC heat generating core is encapsulated in described core body container cavity.
Preferably, described hush panel is provided with and press-fits preformed hole, and an insulating protection cap is installed in this press-fits preformed hole.
The utility model embodiment second aspect provides a kind of liquid electric heater, comprises shell, PTC electric heating assembly, and PTC electric heating assembly inserts in this housing;
In described shell, be provided with coolant cavity, and on described shell, be provided with the coolant entrance and the coolant outlet that communicate with coolant cavity;
Wherein, described PTC electric heating assembly is above-mentioned PTC electric heating assembly.
The liquid electric heater that adopts the utility model embodiment to provide, has improved the heating power of liquid electric heater, and its heat transfer efficiency is also significantly improved.Meanwhile, its insulation effect is better, and assembling is simple, and fail safe is higher.
The utility model embodiment third aspect provides a kind of electric motor car heating system, comprises liquid electric heater, coolant pipeline, circulating water pump and heat dissipation of terminal equipment;
Liquid electric heater, circulating water pump and heat dissipation of terminal equipment connection are become a loop by described coolant pipeline;
Wherein, described liquid electric heater is above-mentioned liquid electric heater.Due to the PTC electric heating assembly including in its liquid electric heater after the utility model improves, therefore, similarly, improve the heating power of the liquid electric heater in electric motor car heating system, its heat transfer efficiency is also significantly improved.Meanwhile, its insulation effect is better, and assembling is simple, and fail safe is higher.
Brief description of the drawings
Fig. 1 is the three-dimensional exploded perspective view of PTC electric heating assembly providing in the utility model embodiment;
Fig. 2 is the PTC group of ceramics schematic diagram providing in the utility model embodiment;
Fig. 3 is the first electrode module exploded perspective view providing in the utility model embodiment;
Fig. 4 is the second electrode module exploded perspective view providing in the utility model embodiment;
Fig. 5 is generalized section in the middle of the PTC electric heating assembly providing in the utility model embodiment;
Fig. 6 is that in the PTC electric heating assembly providing in the utility model embodiment, each Insulating frame coordinates schematic diagram;
Fig. 7 is the three-dimensional exploded perspective view of the PTC electric heating assembly after the assembling providing in the utility model embodiment;
Fig. 8 is that the electrode providing in the utility model embodiment press-fits schematic diagram;
Fig. 9 is the insulating protection cap assembling schematic diagram providing in the utility model embodiment.
Wherein, 1, the first electrode module; 2, the second electrode module; 3, PTC group of ceramics; 4, thermal insulation layer; 5, heat conduction shell; 6, press-loading device; 11, the first main electrode module; 12, the first auxiliary electrode module; 21, the second main electrode module; 22, the second auxiliary electrode module; 30, PTC potsherd; 31, main PTC group of ceramics; 32, secondary PTC group of ceramics; 51, core body container cavity; 61, press-fit post; 110, the first main electrode piece; 111, the first main insulation framework; 112, the first cross-brace bar; 113, the first convex tendon; 114, the first hush panel; 120, the first auxiliary electrode piece; 121, the first secondary Insulating frame; 122, the first convex supporting member; 123, the first groove; 210, the second main electrode piece; 211, the second main insulation framework; 212, the second cross-brace bar; 213, the second convex tendon; 214, the second hush panel; 220, the second auxiliary electrode piece; 221, the second secondary Insulating frame; 222, the second convex supporting member; 223, the second groove; C, corrugated occlusion structure; 1a, the first electrode column; 2a, the second electrode column; A, insulating protection cap; B, press-fit preformed hole.
Embodiment
Clearer for technical problem, technical scheme and beneficial effect that the utility model is solved, below in conjunction with drawings and Examples, the utility model is further elaborated.Should be appreciated that specific embodiment described herein is only in order to explain the utility model, and be not used in restriction the utility model.
This example will be carried out specific explanations explanation to PTC electric heating assembly, the three-dimensional exploded perspective view of PTC electric heating assembly as shown in Figure 1, and PTC electric heating assembly comprises heat conduction shell 5, thermal insulation layer 4 and PTC heat generating core;
Described PTC heat generating core and described thermal insulation layer 4 are placed in described heat conduction shell 5; Described thermal insulation layer 4 is between described PTC heat generating core and described heat conduction shell 5;
Described PTC heat generating core comprises the first electrode module 1, the second electrode module 2 and PTC group of ceramics 3; Described PTC group of ceramics 3 is located between described the first electrode module 1 and described the second electrode module 2;
Described PTC group of ceramics 3 comprises the PTC potsherd 30 of some stacked on top of one another, and two electrodes of described PTC potsherd 30 are electrically connected with described the first electrode module 1 and described the second electrode module 2 respectively.
PTC group of ceramics 3 in the middle of described the first electrode module 1 and the second electrode module 2 are used to and are folded in provides electric energy; in this first electrode module 1 and the second electrode module 2, include opposite polarity electrode block; electrode block can adopt the metal that electric conductivity is good to make; such as the metal such as aluminium, copper, also can be at protective layers such as metal surface nickel plating.Such as, if be anodal piece in the first electrode module 1, in the second electrode module 2, be negative pole piece; If be negative pole piece in the first electrode module 1, in the second electrode module 2, be anodal piece.
As shown in Figure 2, PTC group of ceramics 3 forms for some PTC potsherd 30 stacked on top of one another (or claiming stacking).Wherein PTC potsherd 30 is conventionally known to one of skill in the art, and PTC potsherd 30 is conventionally known to one of skill in the art, and it is a sandwich shape structure, and centre is ceramic post sintering layer, and this ceramic post sintering layer passes through BaTiO
3be PTC ceramic material or V
2o
3be that the PTC ceramic materials such as PTC ceramic material form by sintering, its general process is for passing through after the mixing such as PTC ceramic material, binding agent, ball milling after pre-fired powder, then pressing and forming in mould, finally forms this ceramic post sintering layer by high temperature sintering.On two of its ceramic post sintering layer relative faces, form this positive and negative electrode by modes such as spraying, sputters.This positive and negative electrode is electrically connected with the first battery module and the second battery module respectively, receives the electric energy from above-mentioned battery module, thereby is heat energy by electric energy conversion.
As shown in Figure 1, this heat conduction shell 5 is used for holding above-mentioned PTC heat generating core, and therefore, its structure and shape are not particularly limited, as long as form the core body container cavity 51 that holds heat generating core in it.Such as adopting the hollow structure of an end opening, this example heat conduction shell in mid-term 5 adopts hollow cylindrical body, its width reduces from the top down gradually, be a wedge shape, the material of this heat conduction shell 5 also and Without wishing, as long as can play good heat-conducting effect, such as being metal, plastics etc., preferably adopt the metal such as steel, aluminium.
The effect of its thermal insulation layer 4 is to play the effect that middle PTC heat generating core and heat conduction shell 5 are insulated on the one hand, is the effect of playing transferring heat on the other hand, therefore, can adopt insulation high-temperature-resistant, material that conductive coefficient is high to make, such as silica gel.It is placed in heat conduction shell 5, suitable with these heat conduction shell 5 inwalls, and when PTC heat generating core and heat conduction shell 5 are insulated, the heat that PTC heat generating core can be produced pass to heat conduction shell 5.
Therefore, the heat that PTC heat generating core produces, through thermal insulation layer 4, transfers heat to heat conduction shell 5 effectively, finally passes to coolant by heat conduction shell 5.
The PTC electric heating assembly that this example provides, adopts left and right that electrode module, middle clamping PTC group of ceramics 3 are set, and wherein PTC group of ceramics 3 comprises the structure of the PTC potsherd 30 of stacked on top of one another; Compare existing single form, more novel heat form is provided, improved its heating power, its heat transfer efficiency is also significantly improved.Meanwhile, its insulation effect is better, and assembling is simple, and fail safe is higher.
For further strengthening its insulating protection performance; can Insulating frame be set the electrode block in the first electrode module 1 and the second electrode module 2 outward; this Insulating frame can play the effect of fixing guard electrode piece on the one hand, plays on the other hand the effect that electrode block and heat conduction shell 5 are insulated.
Such as, as the preferred mode of one, described the first electrode module 1 comprises the first Insulating frame and the first electrode block, described the first electrode block is fixed in described the first Insulating frame;
Described the second electrode module 2 comprises the second Insulating frame and the second electrode block, and described the second electrode block is fixed in described the second Insulating frame;
Described the first Insulating frame and described the second Insulating frame coordinate, and between forms spatial accommodation, and described PTC group of ceramics 3 is contained in this spatial accommodation;
Two electrodes of described PTC potsherd 30 are directly fitted with described the first electrode block and described the second electrode block respectively, realize electrical connection.Adopt this kind of mode; as mentioned above; can form the first Insulating frame and the second Insulating frame on the surface of the first electrode block, the second electrode block; when can playing fixing protective effect; play the effect of insulating protection; can on above-mentioned Insulating frame, form docking structure, the first electrode module 1 and the second electrode module 2 are formed to docking mechanically, PTC heat generating core is formed to an overall structure simultaneously.
Further preferably, described the first Insulating frame is plastic on described the first electrode block surface, and described the second Insulating frame is plastic on described the second electrode block surface.Can adopt the mode of plastic moulding, this kind of mode can form above-mentioned the first Insulating frame and the second Insulating frame on the surface of the first electrode block, the second electrode block.It should be noted that, the first electrode block, the second electrode block just represent that its polarity is contrary, do not represent that the quantity that limits its electrode block only has one, do not represent to be coated on the first Insulating frame outside the first electrode block, the second electrode block, the quantity of the second Insulating frame only has one yet.The quantity of the first electrode block can be 1, can be also polylith, polylith if, electrical connection between polylith the first electrode block.Similarly, the quantity of the second electrode block can be 1, can be also polylith, polylith if, electrical connection between polylith the second electrode block.The first Insulating frame and the second Insulating frame, to should the first electrode block and the quantity of the second electrode block, can be a complete entirety, can be also several Insulating frames that separate.Below in conjunction with accompanying drawing, it is further explained.
As known in those skilled in the art, obviously, PTC electric heating assembly need to be drawn the positive and negative electrode terminal being electrically connected with power supply.Such as, as shown in Figure 1, described the first electrode module 1 is provided with the first electrode column 1a; Described the first electrode column 1a stretches out from described the first Insulating frame;
Described the second electrode module 2 is provided with the second electrode column 2a; Described the second electrode column 2a stretches out from described the second Insulating frame.This first electrode column 1a is as positive terminal, and the second electrode column 2a is as negative terminal.This first electrode column 1a is as negative terminal, and the second electrode column 2a is as positive terminal.
For strengthening the mechanical connection between the first electrode module 1 and the second electrode module 2, as one preferred embodiment, the cooperation place of described the first Insulating frame and described the second Insulating frame is formed with corrugated occlusion structure c;
Corrugated occlusion structure c docking on corrugated occlusion structure c on described the first Insulating frame and described the second Insulating frame, is structure as a whole both interlocks.Adopt this kind of mode, form indenting corrugated lay configuration in the side of Insulating frame, strengthened the binding ability between Insulating frame, prevent that the first electrode module 1 and the second electrode module 2 from scattering naturally.
But, present inventor finds in R&D process, if independent by all PTC potsherd 30 stacked on top of one another (or stacking) together, this kind of mode will face following problem: because PTC potsherd 30 is very thin thin slice, frangible, if stacking PTC potsherd 30 is too much, its assembling will seem difficult, to very easily make PTC potsherd 30 break, and be just added in, the voltage at negative electrode two ends is up on hundreds of kilovolt, PTC electric heating assembly will be very dangerous, if PTC potsherd 30 is stacking less, its heating power does not reach requirement, heat-transfer effect is not good.For this reason, present inventor is further optimized to it, to solve above-mentioned assembling difficulty, the problem that heating power deficiency or security performance are low.
As shown in Figure 3, described the first electrode module 1 comprises the first main electrode module 11 and the first auxiliary electrode module 12 of stacked on top of one another; As shown in Figure 4, described the second electrode module 2 comprises the second main electrode module 21 and the second auxiliary electrode module 22 of stacked on top of one another; Described PTC group of ceramics 3 comprises main PTC group of ceramics 31 and secondary PTC group of ceramics 32;
As shown in Figure 3, described the first main electrode module 11 comprises the first main electrode piece 110 and the first main insulation framework 111, and described the first main electrode piece 110 is fixed in described the first main insulation framework 111;
Described the first auxiliary electrode module 12 comprises the first auxiliary electrode piece 120 and the first secondary Insulating frame 121, and described the first auxiliary electrode piece 120 is fixed in described the first secondary Insulating frame 121;
As shown in Figure 4, described the second main electrode module 21 comprises the second main electrode piece 210 and the second main insulation framework 211, and described the second main electrode piece 210 is fixed in described the second main insulation framework 211;
Described the second auxiliary electrode module 22 comprises the second auxiliary electrode piece 220 and the second secondary Insulating frame 221, and described the second auxiliary electrode piece 220 is fixed in described the second secondary Insulating frame 221;
Then, refer to Fig. 5, Fig. 6, described the first main insulation framework 111 and described the second main insulation framework 211 coordinate, and between forms spatial accommodation, and described main PTC group of ceramics 31 is contained in this spatial accommodation;
Described the first secondary Insulating frame 121 and described the second secondary Insulating frame 221 coordinate, and between forms spatial accommodation, and described secondary PTC group of ceramics 32 is contained in this spatial accommodation;
Described the first main electrode piece 110 is electrically connected with described the first auxiliary electrode piece 120, and described the second main electrode piece 210 is electrically connected with described the second auxiliary electrode piece 220, and its result forms assembly structure as shown in Figure 7.
The operation principle of its PTC heat generating core is that first above-mentioned the first main electrode piece 110, the second main electrode piece 210 are accepted after voltage, electricity is conducted to the first auxiliary electrode piece 120, the second auxiliary electrode piece 220 again, PTC potsherd 30 is subject to electricity heating, heat conducts to the first electrode module 1 and the second electrode module 2, and heat conducts to heat conduction shell 5 the most at last.
In this example, PTC group of ceramics 3 comprises main PTC group of ceramics 31 and secondary PTC group of ceramics 32, so, make PTC group of ceramics 3 be divided at least two-part structure, each PTC group of ceramics 3 forms by some potsherds are stacking, so, and by original potsherd being stacked in a group, be divided into more than two, so, can reduce the stacking quantity in every group, prevent the generation that PTC potsherd 30 is cracked.Please understand, in this example, the said meaning does not refer to and only limits main PTC group of ceramics 31 and 32 two groups of secondary PTC group of ceramics, secondary PTC group of ceramics 32 can be divided into 2 above groups yet, electrical connection between each secondary PTC group of ceramics 32.For this reason, corresponding main PTC group of ceramics 31 is provided with the first main electrode module 11 and the second main electrode module 21, and corresponding secondary PTC group of ceramics 32 is provided with the first auxiliary electrode module 12 and the second auxiliary electrode module 22.
As found out in Fig. 5, on electrical connection, the first negative electrode piece electrical connection in the first main electrode piece 110 in the first main electrode module 11 and the first negative electrode module, and the second negative electrode piece electrical connection in the second main electrode piece 210 and the second negative electrode module in the second main electrode module 21.Meanwhile, main PTC group of ceramics 31 is folded between the first main electrode piece 110 and the second main electrode piece 210, and secondary PTC group of ceramics 32 is folded between the first auxiliary electrode piece 120 and the second auxiliary electrode piece 220.
As shown in Figure 6, close and fasten at mechanical connection, on each Insulating frame, be provided with corrugated occlusion structure c, on the first main insulation framework 111, the second main insulation framework 211, the first secondary Insulating frame 121, the second secondary Insulating frame 221, be all provided with corrugated occlusion structure c.The mutual interlock of corrugated occlusion structure c of the first main insulation framework 111 and the second main insulation framework 211, is assembled into integrative-structure by the first main insulation framework 111, main PTC group of ceramics 31 and the second main insulation framework 211.The mutual interlock of corrugated occlusion structure c of the first secondary Insulating frame 121 and the second secondary Insulating frame 221, is assembled into integrative-structure by the first secondary Insulating frame 121, secondary PTC group of ceramics 32 and the second secondary Insulating frame 221.
Particularly, as Figure 4-Figure 6, its first electrode column 1a is arranged in the first main electrode module 11, and the second electrode column 2a is arranged in the second main electrode module 21; Described the first electrode column 1a stretches out from described the first main insulation framework 111, and described the second electrode column 2a stretches out from described the second main insulation framework 211.
Its above-mentioned electric connection mode is not particularly limited, and such as can directly fitting or contact connection, electrical connector also can be set in centre and realize electrical connection, such as, provide one below preferred embodiment.
Preferably, as shown in Figure 3, Figure 4, the lower end of described the first main electrode piece 110 and described the second main electrode piece 210 is provided with convex tendon, and the upper end of described the first auxiliary electrode piece 120 and the second auxiliary electrode piece 220 is provided with groove;
The convex tendon of described the first main electrode piece 110 inserts in the groove of described the first auxiliary electrode piece 120, and the convex tendon of described the second main electrode piece 210 inserts in the groove of described the second auxiliary electrode piece 220.
For the purpose of difference, the convex tendon on the first main electrode piece 110 is called to the first convex tendon 113, the convex tendon on the second main electrode piece 210 is called to the second convex tendon 213.Just the groove on the first auxiliary electrode piece 120 is called the first groove 123, and the groove on the second auxiliary electrode piece 220 is called to the second groove 223.The first convex tendon 113 of described the first main electrode piece 110 inserts in the first groove 123 of described the first auxiliary electrode piece 120, and the second convex tendon 213 of described the second main electrode piece 210 inserts in the second groove 223 of described the second auxiliary electrode piece 220.So, realize the electrical connection between the first main electrode module 11 and the first negative electrode module, and realize the electrical connection between the second main electrode module 21 and the second negative electrode module.Its electrical connection is more reliable and more stable.
For main PTC group of ceramics 31 being folded between the first main electrode module 11 and the second main electrode module 21, the enabling capabilities that supports main PTC group of ceramics 31 for strengthening it preferably arranges supporting construction on Insulating frame.For secondary PTC group of ceramics 32 being folded between the first auxiliary electrode module 12 and the second auxiliary electrode module 22, the enabling capabilities that supports secondary PTC group of ceramics 32 for strengthening it preferably arranges supporting construction on Insulating frame.Such as, this example has specifically been done following optimization: the lower end of described the first main insulation framework 111 is provided with the first cross-brace bar 112, and the lower end of described the second main insulation framework 211 is provided with the second cross-brace bar 212; Described main PTC group of ceramics 31 is supported on described the first cross-brace bar 112 and described the second cross-brace bar 212; The lower end of described the first secondary Insulating frame 121 is provided with the first convex supporting member 122, and the lower end of described the second secondary Insulating frame 221 is provided with the second convex supporting member 222; Described secondary PTC group of ceramics 32 is supported on described the first convex supporting member 122 and described the second convex supporting member 222.Adopt said structure, can effectively main PTC group of ceramics 31 and secondary PTC group of ceramics 32 be fixed in Insulating frame, prevent that it from too much causing the cracked phenomenon of PTC potsherd 30 to occur because PTC potsherd 30 is stacking.
As preferred embodiment, as shown in Figure 1, be provided with stage portion at the opening part of heat conduction shell 5; Meanwhile, as shown in Figure 3, Figure 4, the upper surface of described the first main insulation framework 111 and described the second main insulation framework 211 is equipped with hush panel; For simplicity, the hush panel of the first main insulation framework 111 upper surface settings is called to the first hush panel 114, the hush panel of the upper surface setting of the second main insulation framework 211 is called to the second hush panel 214; Hush panel composition cover plate on described the first main insulation framework 111 and the second main insulation framework 211; As shown in Figure 5-Figure 7, described cover plate coordinates with described stage portion, and described PTC heat generating core is encapsulated in described core body container cavity 51.
Concrete, as shown in Fig. 3-Fig. 7, its first electrode column 1a stretches out from this first hush panel 114, and the second electrode column 2a stretches out from the second hush panel 214.
As shown in Fig. 3-Fig. 7, due to bilevel the first main electrode module 11 of the first electrode module 1 layering and the first negative electrode module, bilevel the second main electrode module 21 of the second electrode module 2 layerings and the second negative electrode module, for making closely to connect between upper and lower double-layer structure, need to there is first main electrode module 11 and the second main electrode module 21 of a press-loading device 6 to upper strata to apply uniform pressure.
As a kind of optimal way, as shown in Fig. 1, Fig. 3, Fig. 4, Fig. 7, described hush panel is provided with and press-fits preformed hole b, and an insulating protection cap a is installed in this press-fits preformed hole b.Particularly, in the first hush panel 114 and the second hush panel 214, be equipped with 2 and press-fit preformed hole b, owing to there being this preformed hole, as shown in Figure 8, taking press-loading device 6, the first main electrode module 11 is press-fited as example, press-loading device 6 is in the time press-fiting, on this press-loading device 6 two press-fit post 61 and can insert this and press-fit in preformed hole b, direct effect and the first main electrode piece 110, so, realization press-fits.And can directly masterpiece be used on Insulating frame, prevent pressure assembling force and damage when larger the phenomenon of Insulating frame.
After having press-fited, as shown in Figure 9, the insulating protection cap a of respective amount is arranged on and is press-fited in preformed hole b, ensure its insulation property.
Below its assembling process is simply described: first thermal insulation layer 4 is layered on heat conduction shell 5 inwalls, to after the first auxiliary electrode module 12, secondary PTC group of ceramics 32 and the second negative electrode module assembly, steadily insert lentamente in the core body container cavity 51 of heat conduction shell 5 again, and then the first main electrode module 11, main PTC group of ceramics 31 and the second main electrode module 21 are assembled in the core body container cavity 51 of rear insertion heat conduction shell 5.Finally post 61 insertions that press-fit of press-loading device 6 are press-fited in preformed hole b, then press-loading device 6 is evenly exerted pressure, the first main electrode module 11 is closely connected with the first auxiliary electrode module 12, the second main electrode module 21 is closely connected with the second auxiliary electrode module 22, and moves downward until reasonable depth simultaneously.After having press-fited, the insulating protection cap a of respective amount is arranged on and is press-fited in preformed hole b.
Adopt the structure after above-mentioned further optimization; because it is all coated with Insulating frame outward at electrode block; therefore; the performance of further strengthened its insulation, protecting; adopt the structure of main PTC group of ceramics 31 and secondary PTC group of ceramics 32; make PTC potsherd 30 not easily broken; improve its security performance; simultaneously; owing to adopting the mode of main electrode module and auxiliary electrode module stacked on top of one another; be equivalent to ensureing 30 safety and nondestructive bad in the situation thats of PTC potsherd, increased the sheet number of PTC potsherd 30, therefore greatly improved its heating power and heat transfer efficiency.Its installation process is reasonable, is simple and easy to implement.In sum, adopt the structure after above-mentioned optimization, the performance of strengthened its insulation, protecting, has improved its security performance, greatly improved its heating power and heat transfer efficiency, and its installation process is reasonable simultaneously, is simple and easy to implement.
Embodiment 2
This example provides a kind of liquid electric heater, comprises shell, PTC electric heating assembly, and PTC electric heating assembly inserts in this housing;
In described shell, be provided with coolant cavity, and on described shell, be provided with the coolant entrance and the coolant outlet that communicate with coolant cavity;
Wherein, described PTC electric heating assembly is the PTC electric heating assembly described in above-described embodiment 1.
It is conventionally known to one of skill in the art adopting other structures of the liquid electric heater that this example provides, in embodiment 1, specifically describes and relate to improved PTC electric heating assembly, repeats no more.The liquid electric heater that adopts this example to provide, has improved its heating power, and its heat transfer efficiency is also significantly improved.Meanwhile, its insulation effect is better, and assembling is simple, and fail safe is higher.
Embodiment 3
This example provides a kind of electric motor car heating system, and it comprises liquid electric heater, coolant pipeline, circulating water pump and heat dissipation of terminal equipment; Liquid electric heater, circulating water pump and heat dissipation of terminal equipment connection are become a loop by described coolant pipeline.
The liquid electric heater providing in this liquid electric heater embodiment 2, all the other coolant pipelines, circulation water tumbler, heat dissipation of terminal equipment are conventionally known to one of skill in the art, repeat no more.
Adopt this kind of mode, this liquid electric heater, as thermal source, by after coolant heating, by the driving of circulating water pump, is sent into the coolant after heating in heat dissipation of terminal equipment, finally transfers heat to the air in electric motor car by heat dissipation of terminal equipment.
Owing to including the PTC electric heating assembly after the utility model improves in the liquid electric heater in this electric motor car ability system, therefore, similarly, improved the heating power of the liquid electric heater in electric motor car heating system, its heat transfer efficiency is also significantly improved.Meanwhile, its insulation effect is better, and assembling is simple, and fail safe is higher.
The foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all any amendments of doing within spirit of the present utility model and principle, be equal to and replace and improvement etc., within all should being included in protection range of the present utility model.
Claims (12)
1. a PTC electric heating assembly, is characterized in that, comprises heat conduction shell, thermal insulation layer and PTC heat generating core;
Described PTC heat generating core and described insulating heat-conductive are placed in described heat conduction shell; Described thermal insulation layer is between described PTC heat generating core and described heat conduction shell;
Described PTC heat generating core comprises the first electrode module, the second electrode module and PTC group of ceramics; Described PTC group of ceramics is located between described the first electrode module and described the second electrode module;
Described PTC group of ceramics comprises the PTC potsherd of some stacked on top of one another, and two electrodes of described PTC potsherd are electrically connected with described the first electrode module and described the second electrode module respectively.
2. PTC electric heating assembly according to claim 1, is characterized in that, described the first electrode module comprises the first Insulating frame and the first electrode block, and described the first electrode block is fixed in described the first Insulating frame;
Described the second electrode module comprises the second Insulating frame and the second electrode block, and described the second electrode block is fixed in described the second Insulating frame;
Described the first Insulating frame and described the second Insulating frame coordinate, and between forms spatial accommodation, and described PTC group of ceramics is contained in this spatial accommodation;
Two electrodes of described PTC potsherd are directly fitted with described the first electrode block and described the second electrode block respectively, realize electrical connection.
3. PTC electric heating assembly according to claim 2, is characterized in that, described the first Insulating frame is plastic on described the first electrode block surface, and described the second Insulating frame is plastic on described the second electrode block surface.
4. PTC electric heating assembly according to claim 2, is characterized in that, described the first electrode module is provided with the first electrode column; Described the first electrode column stretches out from described the first Insulating frame;
Described the second electrode module is provided with the second electrode column; Described the second electrode column stretches out from described the second Insulating frame.
5. PTC electric heating assembly according to claim 2, is characterized in that, the cooperation place of described the first Insulating frame and described the second Insulating frame is formed with corrugated occlusion structure;
Corrugated occlusion structure docking on corrugated occlusion structure on described the first Insulating frame and described the second Insulating frame, is structure as a whole both interlocks.
6. according to the PTC electric heating assembly described in any one in claim 1-5, it is characterized in that, described the first electrode module comprises the first main electrode module and the first auxiliary electrode module of stacked on top of one another; Described the second electrode module comprises the second main electrode module and the second auxiliary electrode module of stacked on top of one another; Described PTC group of ceramics comprises main PTC group of ceramics and secondary PTC group of ceramics;
Described the first main electrode module comprises the first main electrode piece and the first main insulation framework, and described the first main electrode piece is fixed in described the first main insulation framework;
Described the first auxiliary electrode module comprises the first auxiliary electrode piece and the first secondary Insulating frame, and described the first auxiliary electrode piece is fixed in described the first secondary Insulating frame;
Described the second main electrode module comprises the second main electrode piece and the second main insulation framework, and described the second main electrode piece is fixed in described the second main insulation framework;
Described the second auxiliary electrode module comprises the second auxiliary electrode piece and the second secondary Insulating frame, and described the second auxiliary electrode piece is fixed in described the second secondary Insulating frame;
Described the first main insulation framework and described the second main insulation framework coordinate, and between forms spatial accommodation, and described main PTC group of ceramics is contained in this spatial accommodation;
Described the first secondary Insulating frame and described the second secondary Insulating frame coordinate, and between forms spatial accommodation, and described secondary PTC group of ceramics is contained in this spatial accommodation;
Described the first main electrode piece is electrically connected with described the first auxiliary electrode piece, and described the second main electrode piece is electrically connected with described the second auxiliary electrode piece.
7. PTC electric heating assembly according to claim 6, is characterized in that, the lower end of described the first main electrode piece and described the second main electrode piece is provided with convex tendon, and the upper end of described the first auxiliary electrode piece and the second auxiliary electrode piece is provided with groove;
The convex tendon of described the first main electrode piece inserts in the groove of described the first auxiliary electrode piece, and the convex tendon of described the second main electrode piece inserts in the groove of described the second auxiliary electrode piece.
8. PTC electric heating assembly according to claim 6, is characterized in that, the lower end of described the first main insulation framework is provided with the first cross-brace bar, and the lower end of described the second main insulation framework is provided with the second cross-brace bar;
Described main PTC group of ceramics is supported on described the first cross-brace bar and described the second cross-brace bar;
The lower end of described the first secondary Insulating frame is provided with the first convex supporting member, and the lower end of described the second secondary Insulating frame is provided with the second convex supporting member;
Described secondary PTC group of ceramics is supported on described the first convex supporting member and described the second convex supporting member.
9. PTC electric heating assembly according to claim 6, is characterized in that, described housing is the hollow structure of an end opening, is formed with the core body container cavity that holds described PTC heat generating core in described housing; Be provided with stage portion at this opening part;
The upper surface of described the first main insulation framework and described the second main insulation framework is equipped with hush panel; Cap seal oralia composition cover plate on described the first main insulation framework and the second main insulation framework;
Described cover plate coordinates with described stage portion, and described PTC heat generating core is encapsulated in described core body container cavity.
10. PTC electric heating assembly according to claim 9, is characterized in that, described hush panel is provided with and press-fits preformed hole, and an insulating protection cap is installed in this press-fits preformed hole.
11. 1 kinds of liquid electric heaters, comprise shell, PTC electric heating assembly, and PTC electric heating assembly inserts in this housing;
In described shell, be provided with coolant cavity, and on described shell, be provided with the coolant entrance and the coolant outlet that communicate with coolant cavity;
It is characterized in that, described PTC electric heating assembly is the PTC electric heating assembly described in any one in claim 1-10.
12. 1 kinds of electric motor car heating systems, is characterized in that, comprise liquid electric heater, coolant pipeline, circulating water pump and heat dissipation of terminal equipment;
Liquid electric heater, circulating water pump and heat dissipation of terminal equipment connection are become a loop by described coolant pipeline;
Wherein, described liquid electric heater is the liquid electric heater described in claim 11.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320800485.3U CN203691655U (en) | 2013-12-06 | 2013-12-06 | PTC electric heating assembly, electric liquid heater and electric vehicle warming system thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320800485.3U CN203691655U (en) | 2013-12-06 | 2013-12-06 | PTC electric heating assembly, electric liquid heater and electric vehicle warming system thereof |
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| CN203691655U true CN203691655U (en) | 2014-07-02 |
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| CN201320800485.3U Expired - Lifetime CN203691655U (en) | 2013-12-06 | 2013-12-06 | PTC electric heating assembly, electric liquid heater and electric vehicle warming system thereof |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105072710A (en) * | 2015-08-24 | 2015-11-18 | 江苏源之翼电气有限公司 | Stacked high-power PTC heater |
| CN105530716B (en) * | 2014-12-18 | 2016-11-23 | 比亚迪股份有限公司 | Calandria assembly and the automobile with it |
| CN106382739A (en) * | 2015-07-26 | 2017-02-08 | 谢彦君 | Electric heater |
| CN107708231A (en) * | 2016-08-08 | 2018-02-16 | Lg电子株式会社 | Heating module and the heater assembly with the heating module |
| CN108156677A (en) * | 2016-12-06 | 2018-06-12 | 埃贝赫卡腾有限两合公司 | Electric heater unit |
| CN108337747A (en) * | 2017-01-20 | 2018-07-27 | 比亚迪股份有限公司 | Heater |
| CN108878711A (en) * | 2018-06-26 | 2018-11-23 | 芜湖黑特新能源汽车科技有限公司 | A kind of new-energy automobile ptc heater battery double team plate |
| GB2613777A (en) * | 2021-12-03 | 2023-06-21 | Amphenol Thermometrics Inc | Heating unit |
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2013
- 2013-12-06 CN CN201320800485.3U patent/CN203691655U/en not_active Expired - Lifetime
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105530716B (en) * | 2014-12-18 | 2016-11-23 | 比亚迪股份有限公司 | Calandria assembly and the automobile with it |
| CN106382739A (en) * | 2015-07-26 | 2017-02-08 | 谢彦君 | Electric heater |
| CN105072710A (en) * | 2015-08-24 | 2015-11-18 | 江苏源之翼电气有限公司 | Stacked high-power PTC heater |
| CN105072710B (en) * | 2015-08-24 | 2017-03-22 | 江苏源之翼电气有限公司 | Stacked high-power PTC heater |
| CN107708231A (en) * | 2016-08-08 | 2018-02-16 | Lg电子株式会社 | Heating module and the heater assembly with the heating module |
| CN108156677A (en) * | 2016-12-06 | 2018-06-12 | 埃贝赫卡腾有限两合公司 | Electric heater unit |
| CN108156677B (en) * | 2016-12-06 | 2021-03-30 | 埃贝赫卡腾有限两合公司 | Electric heating device |
| CN108337747A (en) * | 2017-01-20 | 2018-07-27 | 比亚迪股份有限公司 | Heater |
| CN108878711A (en) * | 2018-06-26 | 2018-11-23 | 芜湖黑特新能源汽车科技有限公司 | A kind of new-energy automobile ptc heater battery double team plate |
| GB2613777A (en) * | 2021-12-03 | 2023-06-21 | Amphenol Thermometrics Inc | Heating unit |
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