CN204795644U - SPA uses in pond double insulation PTC heater - Google Patents
SPA uses in pond double insulation PTC heater Download PDFInfo
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- CN204795644U CN204795644U CN201520321145.1U CN201520321145U CN204795644U CN 204795644 U CN204795644 U CN 204795644U CN 201520321145 U CN201520321145 U CN 201520321145U CN 204795644 U CN204795644 U CN 204795644U
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Abstract
The utility model provides a SPA uses in pond double insulation PTC heater, be in including heating die cavity and setting PTC the heating element (12) in the heating die cavity, its characterized in that, PTC the heating element (12) are including a plurality of semiconductor PTC potsherds, electrode slice, lead wire and basic insulation layer, the cladding of basic insulation layer PTC potsherd, electrode slice and lead wire, the outside on basic insulation layer, the upper and lower surface of PTC the heating element (12) is provided with the 1st thermal insulation piece (3) respectively, and left -handed watch face and right surface are provided with the 2nd thermal insulation body (4) respectively, the 1st thermal insulation piece (3) on upper and lower surface with the 2nd thermal insulation body (4) on left -handed watch face, right side surface constitutes a sealed space. The utility model discloses effectively avoid electrode slice in contact with water, effectively prevented the emergence of electrocuteeing.
Description
Technical field
The utility model relates to heater, in particular for the heater of the Heating pool of family's amusement and recreation, particularly, relates to ptc heater, especially SPA pond double insulation ptc heater.
Background technology
At present, heater majority adopts the structure of electric heater, especially non-technical heater.Distinguish from the principle of electric heater, usually heater can be divided into: (1) Electromagnetic Heating, the electromagnetic heating technique that such as conventional electromagnetic oven adopts; (2) infrared heating, adopts radiant heat transfer, by electromagnetic wave transferring energy.(3) resistance heating, namely utilizes electric current to release heat by electric heating element and heats.Resistance heating can adopt the modes such as the heating of Resistant heating, ceramic heat and electrical coil resistance, quartz ampoule heating to realize usually.
At present, adopt resistance heating manner more, and be particularly applicable in the Heating pool of family's amusement and recreation in household application market, most ceramic heating element that adopts realizes again, and this has brought great hidden danger to use safety, can reduce the experience of user.In use, ceramic heating flake, after using for a long time, easily to burst, punch-through, causes that electrode slice is exposed produces electric leakage, crisis user safety in water.
Utility model content
For defect of the prior art, a kind of SPA pond double insulation ptc heater, the PTC heat generating component 12 comprising heating die cavity and be arranged in described heating die cavity, it is characterized in that, described PTC heat generating component (12) comprises some semiconductor PTC potsherds, electrode slice, lead-in wire and underlying insulating layer, the coated described PTC potsherd of described underlying insulating layer, electrode slice and lead-in wire;
In the outside of described underlying insulating layer, the upper and lower surface of described PTC heat generating component 12 is also respectively arranged with the first heat conductive isolation sheet 3, left surface and right surface are also respectively arranged with the second thermal conductive insulator 4, and first heat conductive isolation sheet 3 on described upper and lower surface forms a space sealed with second thermal conductive insulator 4 on described left surface, right surface.
Preferably, described underlying insulating layer is one or more in following material:
-polyimide film;
-potsherd;
-mica sheet; Or
-other nonmetal or semiconductor Heat Conduction Material
Preferably, described first heat conductive isolation sheet 3 is as any one in lower insulator with described second thermal conductive insulator 4:
-potsherd;
-mica sheet.
-mica sheet; Or
-other nonmetal or semiconductor Heat Conduction Material
Preferably, described underlying insulating layer is four strata imide membrane or mica sheets, and described first heat conductive isolation sheet 3 is potsherd or mica sheet, and described second thermal conductive insulator 4 is heat conductive silica gel.
Preferably, described first heat conductive isolation sheet 3 bonds with described second thermal conductive insulator 4 thermal conductive insulation glue and described underlying insulating layer, the seam crossing thermal conductive insulation glue joint filling of described first heat conductive isolation sheet 3 and described second thermal conductive insulator 4.
Preferably, described heating die cavity comprises the first heating cavity 1, second heating cavity 2, described first heating cavity 1, second heating cavity 2 is with described first heat conductive isolation sheet 3 intimate surface contact and form an enclosure space, and described first heating cavity 1 is provided with a water inlet 5.
Preferably, described heating die cavity two ends are also provided with gasket seal 11 and seal cover 22.
Preferably, described first heating cavity 1 and the second heating cavity 2 are provided with first flow 61 and the second runner 62, point both direction flowing after current enter into described first flow 61 and the second runner 62 from described water inlet 5, the current in a direction directly flow to delivery port 7, the current of other direction enter into described second heating cavity 2 through current conversion lid 8, then are converged by the current of delivery port 7 with described first flow 61.
Preferably, described heating die cavity is also provided with a thermostat 8, and described thermostat connects master control circuit plate.
Preferably, some layer insulatings are provided with between described heating die cavity and described thermostat.
Preferably, described water inlet 5 is also provided with a hydraulic pressure switch 9, described hydraulic pressure switch 9 can control heating line and open or close.
Preferably, between described hydraulic pressure pressure valve and described heating die cavity, a gasket seal is set.
The utility model is by arranging the first heat conductive isolation sheet and the second thermal conductive insulator in PTC heat generating component 12 upper and lower surface, described PTC heat generating component 12 is enclosed in the confined space formed by described first heat conductive isolation sheet and the second thermal conductive insulator, play the effect of reinforced insulation, simultaneously also can heat conduction to reduce heat power lost, even if so in use there is the accident that PTC heat generating component 12 bursts or punctures, still can effectively avoid electrode slice to contact with water, effectively prevent the generation of electric shock.
Accompanying drawing explanation
By reading the detailed description done non-limiting example with reference to the following drawings, other features, objects and advantages of the present utility model will become more obvious:
Fig. 1 illustrates according to an embodiment of the present utility model, a kind of ptc heater structural representation;
Fig. 2 illustrates according to an embodiment of the present utility model, a kind of schematic diagram of PTC heat generating component 12; And
Fig. 3 illustrates according to an embodiment of the present utility model, the workflow diagram of the ptc heater of band thermostat and hydraulic pressure switch 9.
Embodiment
The ptc heater that the utility model provides is for heating water.Common occupation mode is, described SPA pond double insulation ptc heater is put into the water of band heating, and after energising, heating is heated water by described SPA pond double insulation ptc heater.As shown in Figure 1, the shape of described SPA pond double insulation ptc heater entirety is rectangular shape, and its profile also can be other shapes, such as spheroidal certainly, and cylindrical etc., this does not affect flesh and blood of the present utility model, does not repeat them here.
Fig. 1 shows an embodiment of the present utility model, a kind of SPA pond double insulation ptc heater, the PTC heat generating component 12 comprising heating die cavity and be arranged in described heating die cavity.As shown in Figure 1, it is inner that described PTC heat generating component 12 is positioned at described heating die cavity, and described heating die cavity is divided into two spaces, those skilled in the art understand, when described ptc heater work, it is inner that water to be heated can flow into described heating die cavity, heated by described PTC heat generating component 12.Being made up of PTC ceramic heating flake and electrode slice of the structure that described PTC heat generating component 12 is comparatively common, electrode slice is by bonding, welding or be fixed on institute PTC ceramic heating flake by the mode that dielectric film wraps up, these all belong to prior art, do not affect the utility model flesh and blood, do not repeat them here.
Further, as shown in Figure 1, described heating die cavity is designed to the hermetically-sealed construction of, and one end is provided with current conversion lid 8, and one end is provided with delivery port 7, and the outer surface of described heating die cavity is also provided with water inlet 5.Particularly, described heating die cavity shown in Fig. 1 is made up of upper and lower two parts, and centre is separated by described PTC heat generating component 12, but described heating die cavity can also be an entirety, or can be more part composition, this affect flesh and blood of the present utility model.
Further, described PTC heat generating component (12) comprises some semiconductor PTC potsherds, electrode slice, lead-in wire and underlying insulating layer, the coated described PTC potsherd of described underlying insulating layer, electrode slice and lead-in wire, those skilled in the art understand, the PTC heat generating component of this kind of structure is common structure, does not repeat them here.Further, in the outside of described underlying insulating layer, the upper and lower surface of described PTC heat generating component 12 is also respectively arranged with the first heat conductive isolation sheet 3, left surface and right surface are also respectively arranged with the second thermal conductive insulator 4, and first heat conductive isolation sheet 3 on described upper and lower surface forms a space sealed with second thermal conductive insulator 4 on described left surface, right surface.Particularly, as shown in Figure 2, described first heat conductive isolation sheet 3 has upper and lower two panels, described second thermal conductive insulator 4 has left and right two panels, described second thermal conductive insulator 4 to be clipped between described first heat conductive isolation sheet 3 and to form the space of a sealing, and described PTC heat generating component 12 is in the space of described sealing.More specifically, described second thermal conductive insulator 4 is pressed from both sides and the fixed form of described first heat conductive isolation sheet 3 has multiple, such as can be extruded by the entirety of two parts of described heating die cavity to described first heat conductive isolation sheet 3 and the second thermal conductive insulator 4 composition, then two parts of described heating die cavity are fixed; Have such as, directly use thermal conductive insulation glue described first heat conductive isolation sheet 3 and the second thermal conductive insulator 4 to be bondd; Have such as, described second thermal conductive insulator 4 has certain thickness, and is provided with groove, the form fit of described groove and described first heat conductive isolation sheet 3, and described first heat conductive isolation sheet 3 is directly inserted in described groove.
As the first embodiment of the present utility model, described underlying insulating layer be in following material any one or multiple: polyimide film; Insulating ceramic film; Mica sheet; Other nonmetal or semiconducting insulation Heat Conduction Material.Those skilled in the art understand, polyimide film has outstanding high temperature resistant, resistance to chemical attack and electrical insulation capability, normal temperature Tensile strength is 200MPa, is greater than 100MPa when 200 DEG C, special suitable for making flexible circuit board or various heat resisting motor electrical apparatus insulation material.Insulating ceramics, in electronic application, by conductor physical isolation, can also play the effects such as mechanical support, heat conduction and circuit environmental protection simultaneously.Conventional mica sheet is divided into white clouds master slice and phlogopite sheet, and two kinds all have good electric property and mechanical performance, have the thermal resistance function of low loss simultaneously, are a kind of desirable insulating heat-conduction materials.
As the utility model second embodiment, described first heat conductive isolation sheet 3 is as any one in lower insulator with described second thermal conductive insulator 4: polyimide film; Insulating ceramic film; Mica sheet; Other nonmetal or semiconducting insulation Heat Conduction Material.It will be appreciated by those skilled in the art that described first heat conductive isolation sheet 3 and described second thermal conductive insulator 4 select the advantage of same material to be convenient processing, sealing is also best simultaneously.
As the 3rd embodiment of the present utility model, described underlying insulating layer is four strata imide membrane or mica sheets, and described first heat conductive isolation sheet 3 is potsherd or mica sheet, and described second thermal conductive insulator 4 is heat conductive silica gel.Those skilled in the art understand, described first heat conductive isolation sheet 3 adopts the potsherd of hard or mica sheet to have good explosion-proof effect, thermal insulation and insulating properties also can ensure simultaneously, and described second thermal conductive insulator 4 adopts the material of heat conductive silica gel, effectively can avoid the generation of phenomenon of rupture during the first heat conductive isolation sheet 3 described in pressing, namely described second thermal conductive insulator 4 adopts heat conductive silica gel material to have the effect of buffering stress.In a change case, described second thermal conductive insulator 4 also can be the material of pottery or mica, as long as do not rupture when ensureing pressing; In like manner, described first heat conductive isolation sheet 3 can be also heat conductive silica gel material, does not repeat them here.
As the 4th embodiment of the present utility model, described first heat conductive isolation sheet 3 bonds with described second thermal conductive insulator 4 thermal conductive insulation glue and described underlying insulating layer, the seam crossing thermal conductive insulation glue joint filling of described first heat conductive isolation sheet 3 and described second thermal conductive insulator 4.Particularly, the mode not referring to fixing described first heat conductive isolation sheet 3 and described second thermal conductive insulator 4 with thermal conductive insulation glue joint filling that the present embodiment is mentioned, and after referring to that described first heat conductive isolation sheet 3 and described second thermal conductive insulator 4 are fixing, if there is seam, then use glue to be got up by described joint seal, improve sealing further.
As the 5th embodiment of the present utility model, as shown in Figure 1, described heating die cavity comprises the first heating cavity 1, second heating cavity 2, described first heating cavity 1, second heating cavity 2 is with described first heat conductive isolation sheet 3 intimate surface contact and form an enclosure space, and described first heating cavity 1 is provided with a water inlet 5.Described first heating cavity 1, second heating cavity 2 has multiple with the mode of described first heat conductive isolation sheet 3 intimate surface contact, such as, and can by carrying out external force extruding to described first heating cavity 1, second heating cavity 2; Such as can be realized by the mode of welding again; Such as can be bondd by fluid sealant again.
Further, described first heating cavity 1, second heating cavity 2 has a bottom surface respectively, the laminating of described first heat conductive isolation sheet 3 and described first heating cavity 1, second heating cavity 2, in a change case, described bottom surface can be omitted, by the bottom surface of described first heat conductive isolation sheet 3 as described first heating cavity 1, second heating cavity 2, those skilled in the art understand, now the size of described first heat conductive isolation sheet 3 can, slightly larger than the size of described first heating cavity 1, second heating cavity 2, realize better sealing.
Further, the position of the water inlet 5 shown in Fig. 1 is positioned at described first heating cavity 1 upper surface position to the right, in a change case, described water inlet 5 can also be positioned at the described first in the middle of heating cavity 1 upper surface or position to the right, those skilled in the art understand, the position of described water inlet 5 is relevant with the speed that current flow into described ptc heater, and then affects the efficiency of heating surface further.
As the 6th embodiment of the present utility model, described heating die cavity two ends are also provided with gasket seal 11 and seal cover 22.Those skilled in the art understand, ptc heater designed by the utility model, the excellent of its sealing directly has influence on final result of use, and the gasket seal 11 of the present embodiment and seal cover 22 are all the sealings in order to improve described ptc heater further, preferably described gasket seal 1 and seal cover 22 use elastomeric quality of rubber materials to make, its shape can design according to the port shape of described heating die cavity, ensures size matching degree.In another change case, the size of described first heat conductive isolation sheet 3 is greater than the size of described heating die cavity, namely described first heat conductive isolation sheet 3 two ends exceed the two ends of described heating die cavity, now described seal cover 22 can be provided with the groove suitable with described first heat conductive isolation sheet 3 size, for holding the part that the first heat conductive isolation sheet 3 exceeds.
As the 7th embodiment of the present utility model, described first heating cavity 1 and the second heating cavity 2 are provided with first flow 61 and the second runner 62, point both direction flowing after current enter into described first flow 61 and the second runner 62 from described water inlet 5, the current in a direction directly flow to delivery port 7, the current of other direction enter into described second heating cavity 2 through current conversion lid 8, then are converged by the current of delivery port 7 with described first flow 61.Those skilled in the art understand, described first flow 61 and the second runner 62 all with described water inlet 5 UNICOM, described first flow 61 is set and the second runner 62 can increase the flowing velocity of current in the first heating cavity 1 and the second heating cavity 2, after current enter from water inlet 5, can scatter in described first heating cavity 1 more fast.
Further, in this embodiment, the heating process of current in described heating die cavity is as follows: (1) current enter into described first heating cavity by described water inlet 5, part flow direction delivery port 7 also heats in the process, and another part flow direction current conversion lid 8 also heats in the process; (2) current enter into described second heating cavity 2 by current conversion lid 8, flow to delivery port 7 and heat in the process from described second heating cavity 2.Those skilled in the art understand, as can be seen from above-mentioned current heating process, described water inlet 5 from delivery port 7 apart from close to more, then current are longer for heating time, heat utilization rate is also higher, but current are also longer in the time of described heating cavity, and the design of dual channel 61 and 62 can reduce the flowing time of current at described heating cavity, improve the efficiency of heating surface.
As the 8th embodiment of the present utility model, described heating die cavity is also provided with a thermostat 8, and described thermostat 8 connects master control circuit plate.Those skilled in the art understand, described ptc heater in use can be persistently overheating, it is overheated that the object arranging thermostat is to prevent described ptc heater, to extend the useful life of described ptc heater, also can avoid due to the overheated generation causing bursting simultaneously.As shown in Figure 1 and Figure 3, said thermostat 8 is close to the outer surface of described first cavity 1, the temperature sensor of described thermostat can gather the temperature data of described first cavity 1 outer surface, and described temperature data is converted to the signal of telecommunication is sent to master control circuit plate, described transform electrical signals is temperature data by the data conversion module of described master control circuit plate, temperature data after conversion and the normal temperature data preset contrast by data processing module, if exceed described normal temperature data, then described data processing module sends control signal to control module, the switch that described control module controls heating line disconnects.
Further, when described heating line quits work, described first cavity 1 outer surface can progressively be lowered the temperature, the temperature data of the first cavity 1 outer surface described in described thermostat meeting continuous collecting, and described temperature data is converted to the signal of telecommunication is sent to master control circuit plate, described transform electrical signals is temperature data by the data conversion module of described master control circuit plate, temperature data after conversion and the normal temperature data preset contrast by data processing module, if lower than described normal temperature data, then described data processing module sends control signal to control module, the switch that described control module controls heating line closes.
As the 9th embodiment of the present utility model, between described heating die cavity and described thermostat, be provided with some layer insulatings.It will be appreciated by those skilled in the art that the object arranging insulating barrier has be sealing at two: one, two is insulation.In the use procedure of reality, because the phenomenon that seeps water easily appears in the connecting portion of thermostat and described heating die cavity, like this after unexpected electric leakage produces, the water oozed out also can conduct electricity, and therefore arranges insulating barrier and can play sealing and the effect of insulation.The material of described insulating barrier can be heat conductive insulating rubber or heat-conducting insulated film etc., does not repeat them here.
As the tenth embodiment of the present utility model, described water inlet 5 is also provided with a hydraulic pressure switch 9, described hydraulic pressure switch 9 can control heating line and open or close.Those skilled in the art understand, the present embodiment needs in conjunction with the 7th embodiment explanation, in above-mentioned 7th embodiment, the switch that described control module controls is closed at conventional sense, and the hydraulic pressure switch 9 of the present embodiment is disconnect at conventional sense, and the hydraulic pressure switch 9 of the present embodiment belongs to a part for described heating line, namely described hydraulic pressure switch 9 in the off state, described heating line is also do not work, only have after current start to enter into said heating die cavity, pressure in described hydraulic pressure switch 9 starts to raise, when pressure exceedes rated pressure, diaphragm in the inductor of hydraulic pressure switch 9 is instantaneous to be moved, connect by connecting guide rod pull switch joint, and when the pressure in described hydraulic pressure switch 9 starts to reduce, and during lower than rated pressure, the diaphragm instant reset in the inductor of hydraulic pressure switch 9, switch also automatically resets and is in off-state.
Further, in another change case, described hydraulic pressure switch 9 replaces with a pressure switch, described pressure switch connects the master control circuit plate described in above-described embodiment seven, when the hydraulic pressure in described heating die cavity reaches the rated pressure of relay, described relay sends the data conversion module that the signal of telecommunication is sent to described master control circuit plate, described transform electrical signals is pressure data by described data conversion module, pressure data after conversion and the normal pressure data preset contrast by data processing module, if higher than described normal pressure data, then described data processing module sends control signal to control module, the switch that described control module controls heating line closes, those skilled in the art understand, the principle of this change case is identical with the principle of above-described embodiment seven, do not repeat them here.
As the 11 embodiment of the present utility model, between described hydraulic pressure switch 9 and described heating die cavity, a gasket seal is set.It will be appreciated by those skilled in the art that the object arranging gasket seal has be sealing at two: one, two is insulation.In the use procedure of reality, because the phenomenon that seeps water easily appears in hydraulic pressure switch 9 and the connecting portion of described heating die cavity, like this after unexpected electric leakage produces, the water oozed out also can conduct electricity, and therefore arranges gasket seal and can play sealing and the effect of insulation.The material of described insulating barrier can be heat conductive insulating rubber or heat-conducting insulated film etc., does not repeat them here.
Above specific embodiment of the utility model is described.It is to be appreciated that the utility model is not limited to above-mentioned particular implementation, those skilled in the art can make various distortion or amendment within the scope of the claims, and this does not affect flesh and blood of the present utility model.
Claims (12)
1. a SPA pond double insulation ptc heater, the PTC heat generating component (12) comprising heating die cavity and be arranged in described heating die cavity, it is characterized in that, described PTC heat generating component (12) comprises some semiconductor PTC potsherds, electrode slice, lead-in wire and underlying insulating layer, the coated described PTC potsherd of described underlying insulating layer, electrode slice and lead-in wire;
In the outside of described underlying insulating layer, the upper and lower surface of described PTC heat generating component (12) is also respectively arranged with the first heat conductive isolation sheet (3), left surface and right surface are also respectively arranged with the second thermal conductive insulator (4), and first heat conductive isolation sheet (3) on described upper and lower surface forms a space sealed with second thermal conductive insulator (4) on described left surface, right surface.
2. ptc heater according to claim 1, is characterized in that, described underlying insulating layer is one or more in following material:
-polyimide film;
-potsherd; Or
-mica sheet.
3. ptc heater according to claim 2, is characterized in that, described first heat conductive isolation sheet (3) and described second thermal conductive insulator (4) are any one in following material:
-potsherd;
-mica sheet; Or
-polyimide film.
4. ptc heater according to claim 2, it is characterized in that, described underlying insulating layer is four strata imide membrane or mica sheets, and described first heat conductive isolation sheet (3) is potsherd or mica sheet, and described second thermal conductive insulator (4) is heat conductive silica gel.
5. ptc heater according to any one of claim 1 to 4, it is characterized in that, described first heat conductive isolation sheet (3) bonds with thermal conductive insulation glue and described underlying insulating layer with described second thermal conductive insulator (4), the seam crossing thermal conductive insulation glue joint filling of described first heat conductive isolation sheet (3) and described second thermal conductive insulator (4).
6. ptc heater according to claim 5, it is characterized in that, described heating die cavity comprises the first heating cavity (1), the second heating cavity (2), described first heating cavity (1), the second heating cavity (2) and described first heat conductive isolation sheet (3) intimate surface contact and form an enclosure space, and described first heating cavity (1) is provided with a water inlet (5).
7. ptc heater according to claim 6, is characterized in that, described heating die cavity two ends are also provided with gasket seal (11) and seal cover (22).
8. ptc heater according to claim 7, it is characterized in that, described first heating cavity (1) and the second heating cavity (2) are provided with first flow (61) and the second runner (62), current enter into described first flow (61) and the second runner (62) point both direction flowing afterwards from described water inlet (5), the current in a direction directly flow to delivery port (7), the current of other direction enter into described second heating cavity (2) through current conversion lid (8), converged by the current of delivery port (7) with described first flow (61) again.
9. the ptc heater according to any one of claim 6-8, is characterized in that, described heating die cavity is also provided with a thermostat (8), and described thermostat connects master control circuit plate.
10. ptc heater according to claim 9, is characterized in that, is provided with some layer insulatings between described heating die cavity and described thermostat.
11. arbitrary ptc heaters according to claim 6 or 7 or 8 or 10, is characterized in that, described water inlet 5 is also provided with a hydraulic pressure switch (9), and described hydraulic pressure switch (9) can control heating line and open or close.
12. ptc heaters according to claim 11, is characterized in that, arrange a gasket seal between described hydraulic pressure pressure valve and described heating die cavity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520321145.1U CN204795644U (en) | 2015-05-18 | 2015-05-18 | SPA uses in pond double insulation PTC heater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520321145.1U CN204795644U (en) | 2015-05-18 | 2015-05-18 | SPA uses in pond double insulation PTC heater |
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| Publication Number | Publication Date |
|---|---|
| CN204795644U true CN204795644U (en) | 2015-11-18 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108848574A (en) * | 2018-05-18 | 2018-11-20 | 浙江欧兰顿电器科技有限公司 | A kind of control method of PTC heat generating component firm power |
| CN109386953A (en) * | 2018-11-28 | 2019-02-26 | 浙江亮能机电科技有限公司 | A kind of aluminium alloy thick film chip heating device that constant temperature machine uses |
| CN109506358A (en) * | 2017-09-14 | 2019-03-22 | 博格华纳路德维希堡有限公司 | Flow heater |
-
2015
- 2015-05-18 CN CN201520321145.1U patent/CN204795644U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109506358A (en) * | 2017-09-14 | 2019-03-22 | 博格华纳路德维希堡有限公司 | Flow heater |
| CN109506358B (en) * | 2017-09-14 | 2022-01-11 | 博格华纳路德维希堡有限公司 | Flow heater |
| CN108848574A (en) * | 2018-05-18 | 2018-11-20 | 浙江欧兰顿电器科技有限公司 | A kind of control method of PTC heat generating component firm power |
| CN109386953A (en) * | 2018-11-28 | 2019-02-26 | 浙江亮能机电科技有限公司 | A kind of aluminium alloy thick film chip heating device that constant temperature machine uses |
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