CN217307895U

CN217307895U - Air conditioner PTC electric heater preventing condensed water from immersing

Info

Publication number: CN217307895U
Application number: CN202221209417.5U
Authority: CN
Inventors: 解钟; 殷斌; 刘小艳
Original assignee: Zhenjiang Dongfang Electric Heating Technology Co ltd
Current assignee: Zhenjiang Dongfang Electric Heating Technology Co ltd
Priority date: 2022-05-19
Filing date: 2022-05-19
Publication date: 2022-08-26
Anticipated expiration: 2032-05-19

Abstract

The utility model discloses an air conditioner PTC electric heater that anti condensation water logging was gone into, insulating film cladding PTC pottery heating element form behind the core that generates heat, arrange in the aluminium pipe, and the aluminium pipe surface is provided with heat dissipation aluminium strip, and at air conditioner PTC electric heater's afterbody, the end of the core that generates heat stretches out in the end of aluminium pipe, forms exposed section, and the end of heat dissipation aluminium strip stretches out in the end of the core that generates heat, and the end encapsulating of the core that generates heat seals. This electric heater has kept the aluminium pipe inside and has generated heat the clearance between the core from electric heater's head to the lining up of afterbody, and the comdenstion water still has the outflow passageway in getting into the aluminium pipe, can follow electric heater's afterbody and flow, has reduced by a wide margin and has stored up the probability that causes the breakdown in the aluminium pipe, to electric heater's head and the seal structure of afterbody, has stopped the comdenstion water almost and has got into the inside condition of aluminium pipe from the clearance, and a plurality of protective structure combine for the breakdown failure fault rate that the comdenstion water soaks electric heater and causes is almost 0.

Description

Air conditioner PTC electric heater preventing condensed water from immersing

Technical Field

The utility model relates to an air conditioner PTC electric heater.

Background

As for the phenomenon that the PTC electric heater is broken down, it is analyzed that the phenomenon occurs in the air conditioner after several cooling and heating cycles, and is a failure caused by the intrusion of the condensed water into the inside of the PTC electric heater.

Due to the structural design of the aluminum tube, as shown in figure 1, a gap 1-4 is formed between the aluminum tube 1-1 and an insulating film 1-2 which is arranged in the aluminum tube and coated with PTC ceramic heating elements 1-3, the end face of the aluminum tube is sealed by glue filling at the tail part of a PTC electric heater, a small amount of condensed water is immersed into the aluminum tube from the head part of an electrode led out of the PTC electric heater, and the condensed water flows back after being heated and cannot be discharged out of the aluminum tube, so that the aluminum tube is accumulated and punctured. Taking a common household 1-piece air conditioner as an example, about 1L of condensed water can be discharged every hour when the air conditioner is used, although the amount of the condensed water which can be immersed into an aluminum pipe is small, once breakdown occurs, the PTC electric heater completely fails.

It can be seen that, in order to solve the problem of the condensed water entering the inside of the PTC electric heater, the PTC electric heater needs to be improved and optimized.

SUMMERY OF THE UTILITY MODEL

Utility model purpose: in view of the above problems, it is an object of the present invention to provide an air conditioner PTC electric heater which prevents condensed water from entering the inside of the PTC electric heater.

The technical scheme is as follows: the utility model provides an air conditioner PTC electric heater that anti condensation water logging was gone into, is including heat dissipation aluminium strip, aluminum pipe, insulating film, PTC ceramic heating element, the insulating film cladding PTC ceramic heating element forms behind the core that generates heat, arranges in the aluminum pipe, the aluminum pipe surface is provided with heat dissipation aluminium strip air conditioner PTC electric heater's afterbody, the end of the core that generates heat stretch out in the end of aluminum pipe forms the exposed section, the end of heat dissipation aluminium strip stretch out in the end of the core that generates heat, the end encapsulating of the core that generates heat is sealed.

Further, the exposed section is a section of the tail dummy sheet of the PTC ceramic heating element and the insulating film coated by the section.

Preferably, the tail end of the insulating film extends out of the tail end of the tail dummy sheet, the region between the tail ends of the insulating film and the tail end of the tail dummy sheet is sealed by glue pouring, the tail end of the heating core is effectively and completely sealed, a channel communicated with the outside does not exist between the insulating film and the PTC ceramic heating element, and the sealing effect is good.

Furthermore, the heating device further comprises a head base, the head end of the heating core is sealed by glue pouring, the head base is sleeved on the head of the air conditioner PTC electric heater, the head base is sealed by glue pouring between the sleeved surfaces of the heat dissipation aluminum strips, and the electrode lead of the heating core is arranged in a penetrating mode through the head base to be led out.

Preferably, the heating device further comprises a heat-shrinkable sleeve, the heat-shrinkable sleeve is wrapped on the head of the head base, and an electrode lead of the heating core is arranged in the heat-shrinkable sleeve in a penetrating manner and led out. The electrode lead is arranged on the head base in a penetrating mode, so that the air conditioner PTC electric heater is still provided with a communicated channel with the outside, the heat-shrinkable sleeve forms wrapping sealing on the head base, the sealing performance is improved, and the sealing effect is good.

Furthermore, the air conditioner PTC electric heater further comprises a tail base, wherein the tail base is sleeved at the tail of the air conditioner PTC electric heater, and the tail base and the sleeving surface of the heat dissipation aluminum strip are sealed through glue pouring.

Furthermore, the glue body of the glue filling is silica gel.

Has the beneficial effects that: the utility model has the advantages that: the air conditioner PTC electric heater keeps the clearance between the inside of the aluminum pipe and the heating core to be communicated from the head part to the tail part of the air conditioner PTC electric heater, after condensed water enters the aluminum pipe, the condensed water still has an outflow channel and can flow out from the tail part of the air conditioner PTC electric heater, the probability of breakdown caused by accumulation in the aluminum pipe is greatly reduced, the sealing structures of the head part and the tail part of the air conditioner PTC electric heater almost avoid the condition that the condensed water enters the inside of the aluminum pipe from the clearance, a plurality of protection structures are combined, the breakdown failure fault rate caused by the fact that the condensed water is immersed in the air conditioner PTC electric heater is almost 0, the durability and the safety of the PTC electric heater are improved.

Drawings

FIG. 1 is a longitudinal cross-sectional view of an aluminum tube configuration and its internal structure;

FIG. 2 is a schematic view of the present invention;

FIG. 3 is a partial sectional view A of FIG. 2;

fig. 4 is a second schematic structural diagram of the present invention.

Detailed Description

The invention will be further elucidated with reference to the drawings and the specific embodiments.

An air conditioner PTC electric heater preventing condensed water from entering is shown in figures 2-4 and comprises a heat dissipation aluminum strip 1, an aluminum tube 2, an insulating film 3, a PTC ceramic heating element 4, a head base 5, a heat-shrinkable sleeve 6 and a tail base 7. The insulating film 3 cladding is on long and flat strip PTC pottery heating element 4 circumference surface, and both form the core that generates heat, place in aluminum pipe 2 together, and heat dissipation aluminium strip 1 sets up on 2 surfaces.

At air conditioner PTC electric heater's afterbody, set up the afterbody structure and do: when the insulating film 3 coats the PTC ceramic heating element 4, the tail end of the insulating film 3 extends out of the tail end of the tail dummy sheet 41 of the PTC ceramic heating element 4, a section of groove area is formed between the tail end of the insulating film 3 and the tail end of the tail dummy sheet 41, the groove area is filled with glue for sealing, the glue 10 is filled in the groove area, and the tail end of the PTC ceramic heating element and the gap between the tail end of the PTC ceramic heating element and the tail end of the insulating film are sealed, namely the tail end of the heating core is completely sealed; extending a section of the tail end of the heating core out of the tail end of the aluminum pipe 2, wherein the extended section is a section of the tail end of the tail false piece, and the extended section forms a section of exposed section outside the aluminum pipe; the tail end of the heat dissipation aluminum bar 1 extends out of the tail end of the heating core.

One end of the tail base 7 is open, the other end is closed, the open end faces the tail of the air conditioner PTC electric heater and is sleeved on the outer peripheral surface of the heat dissipation aluminum strip 1, glue is filled between the tail base 7 and the sleeved surface of the heat dissipation aluminum strip 1 for sealing, and then the tail base completely seals the tail of the air conditioner PTC electric heater.

In the head of the air conditioner PTC electric heater, an electrode plate 8 is led out from between a PTC ceramic heating element 7 and an insulating film 3 at the head end of a heating core and then connected with an electrode lead 9, the head end of the heating core is filled with glue and sealed, one end of a head base 5 is opened, the opening end faces the head of the air conditioner PTC electric heater and is sleeved on the outer peripheral surface of a heat dissipation aluminum strip 1, the head base 5 and the sleeving surface of the heat dissipation aluminum strip 1 are filled with glue and sealed, the other end of the electrode lead 9 (namely the head of the head base) is led out in a penetrating way, a heat shrinkage bush 6 is coated on the head base 5 at the end, the electrode lead 9 is led out in the heat shrinkage bush 6 in a penetrating way and is electrically connected with the outside, and the head of the air conditioner PTC electric heater is completely sealed by combining the head base and the heat shrinkage bush.

The glue body of the glue filling adopts silica gel.

The utility model discloses an air conditioner PTC electric heater, the clearance that has kept between the inside and the core that generates heat of aluminum pipe is from the head of air conditioner PTC electric heater to lining up of afterbody, the comdenstion water gets into the intraductal back of aluminum, still have the flow channel, can follow air conditioner PTC electric heater's afterbody outflow, reduced by a wide margin and stored up the probability that causes the breakdown in the aluminum pipe, to the seal structure of air conditioner PTC electric heater's head and afterbody, the comdenstion water has almost been stopped and has got into the inside condition of aluminum pipe from the clearance, a plurality of protective structure combine, make the comdenstion water dip the breakdown failure fault rate that air conditioner PTC electric heater caused almost be 0, improve PTC electric heater's durability, and high safety.

Claims

1. The utility model provides an air conditioner PTC electric heater that anti condensation water soaks, includes heat dissipation aluminium strip (1), aluminum pipe (2), insulating film (3), PTC ceramic heating element (4), insulating film (3) cladding PTC ceramic heating element (4) form behind the core that generates heat, arrange in aluminum pipe (2), aluminum pipe (2) surface is provided with heat dissipation aluminium strip (1), its characterized in that: the tail end of the heating core extends out of the tail end of the aluminum pipe (2) to form an exposed section, the tail end of the heat dissipation aluminum strip (1) extends out of the tail end of the heating core, and the tail end of the heating core is sealed by glue filling.

2. An air conditioner PTC electric heater preventing intrusion of condensed water according to claim 1, wherein: the exposed section is a section of a tail false sheet (41) of the PTC ceramic heating element (4) and the insulating film (3) covered by the section.

3. An air conditioner PTC electric heater preventing the intrusion of condensed water according to claim 2, characterized in that: the tail end of the insulating film (3) extends out of the tail end of the tail dummy sheet (41), and the area between the tail ends of the insulating film and the tail end of the tail dummy sheet is sealed by glue pouring.

4. An air conditioner PTC electric heater preventing intrusion of condensed water according to claim 1, wherein: still include head base (5), the head end encapsulating of the core that generates heat is sealed, head base (5) cover is established air conditioner PTC electric heater's head, head base (5) with encapsulating is sealed between the face of cup jointing of heat dissipation aluminium strip (1), the electrode lead wire of the core that generates heat wears to locate head base (5) are drawn forth.

5. An air conditioner PTC electric heater preventing intrusion of condensate water according to claim 4, wherein: the heating device is characterized by further comprising a heat-shrinkable sleeve (6), wherein the heat-shrinkable sleeve (6) is coated on the head of the head base (5), and an electrode lead of the heating core is arranged in the heat-shrinkable sleeve (6) in a penetrating manner and led out.

6. An air conditioner PTC electric heater preventing intrusion of condensed water according to claim 1, wherein: still include afterbody base (7), afterbody base (7) cover is established the afterbody of air conditioner PTC electric heater, afterbody base (7) with the encapsulating is sealed between the face of cup jointing of heat dissipation aluminium strip (1).

7. An air conditioner PTC electric heater preventing intrusion of condensed water according to claim 1 or 4, wherein: the glue body of the glue filling is silica gel.