CN205510439U

CN205510439U - Ptc electric heater

Info

Publication number: CN205510439U
Application number: CN201620275083.XU
Authority: CN
Inventors: 徐成东
Original assignee: Individual
Current assignee: Individual
Priority date: 2016-04-01
Filing date: 2016-04-01
Publication date: 2016-08-24
Anticipated expiration: 2026-04-01

Abstract

The utility model discloses a PTC electric heater, including heat pipe, generate heat core and heat dissipation strip, the cavity of heat pipe is placed in to the core that wherein generates heat, and the upper and lower surface at the heat pipe is fixed to the heat dissipation strip, heat dissipation strip is including corrugated plate and the stationary blade of clamping in the corrugated plate both sides, and corrugated plate be side tooth ripple shape is contacting with the junction of stationary blade, press from both sides corrugated plate between the stationary blade is more than two or two, every corrugated plate parallel arrangement, gapped formation passageway each other. Compared with the prior art, it is fixed more firm between each part of this PTC electric heater, improved the safety in utilization, operating steam is difficult to the coalescence and together, has prolonged life, the any spraying agent of out of use, the cost is reduced.

Description

PTC electric heater

Technical field

This utility model relates to electric heating industry, particularly relates to a kind of PTC electric heater.

Background technology

PTC electric heater thermal resistance is little, heat exchange efficiency is high, is that a kind of automatic constant-temperature, power saving, natural life-span are long Electric heater, is widely used in the electrical equipment such as air-conditioning heating, warm-air drier, water heater, dryer, thermal therapeutic apparatus at present. PTC electric heater is mainly made up of heat pipe, heat generating core and heat sink strip, electrical equipment in running, vaporizer With air contact can produce certain moisture, it is attached on PTC electric heater heat pipe and heat sink strip.Particularly The heat sink strip of existing PTC electric heater is as it is shown in figure 1, the corrugated plate of composition heat sink strip is sharp tooth, with two Being linear contact lay between the stator of side, and do not have drainage channel, moisture is easily flocked on sharp tooth corrugated plate with solid The angle that stator connects, time one length can cause heat sink strip air slaking, connection to loosen, affect radiator and use the longevity Life, and have potential safety hazard.Furthermore, cause aluminum strip air slaking problem to solve to bear water, use at radiation aluminium at present Teflon is sprayed on bar, but relatively costly.

Utility model content

Utility model purpose: be difficult to draining for current PTC electric heater, cost is high, there is potential safety hazard etc. Problem, it is provided that a kind of safety height, length in service life, the PTC electric heater of low cost.

Technical scheme: in order to achieve the above object, this utility model is disclosed that a kind of PTC electric heater, bag Including heat pipe, heat generating core and heat sink strip, during wherein heat generating core is placed in the cavity of heat pipe, heat sink strip is fixed on leads In the upper and lower surface of heat pipe；Described heat sink strip includes corrugated plate and the clamping stator in corrugated plate both sides, ripple The sheet side of being tooth ripples shape, is that face contacts with the junction of stator.After the corrugated plate side of being designed as dentation, a side Face, the steam formed in electric operation is just not easy to coalesce together, it is easier to evaporation air-dries, will not be long-time Rest on and on corrugated plate, cause heat sink strip air slaking to affect service life；On the other hand, side's tooth ripples sheet and stator Between contact for face, it is more firm to connect, it is not easy to loosening, adds safety in utilization.

Being clipped in the corrugated plate between described stator is two or more, and every corrugated plate is arranged in parallel, phase Gap is had to form passage between Hu.The air-flow formed in this passage can drive water flow, accelerate moisture evaporation.

Described heat sink strip and heat pipe are by bonding agent or together with being welded and fixed.Described corrugated plate leads to stator Cross bonding agent or be welded and fixed together.Owing to welding cost is higher, bonding agent can be preferentially selected to fix, excellent Selection of land is for using AB silica gel bonding.

The heat sink strip that can have two or more in described heat pipe one or both sides is solid in the direction of the width It is scheduled on together.According to actual installation and use demand, can with the quantity of flexible heat pipe both sides heat sink strip, Reach best effect.

Operation principle: PTC electric heater described in the utility model is loaded in the vaporizer of corresponding electric appliance, works as electrical equipment After bringing into operation, vaporizer can produce water with air contact, and steam can be overlying on the heat sink strip table of PTC electric heater Face, and be attached on corrugated plate, but due to the corrugated plate side of being designed as dentation, contact even for face with between stator Connecing, steam will not coalesce together, and easily evaporation air-dries, and will not rest on for a long time and cause heat radiation on corrugated plate Bar air slaking；And it is the most firm that face contact connects, it is not easy to loosens, uses safety.Described fixing when being clipped in Corrugated plate between sheet be set to two or more and arranged in parallel time, have each other gap formed passage, Electric operation has thermal current flow in passage, drive water flow to accelerate evaporation, the moisture being consequently formed Will not contact with the heat sink strip of electric heater for a long time.It is further preferred that this PTC electric heater is longitudinally mounted Time, if the steam running formation is more, the water of attachment can also be dripped by this passage or flow down eliminating.

Beneficial effect: compared with prior art, the corrugated plate of PTC electric heater described in the utility model is with fixing Sheet is face contact, connects more close and firm, is not easy to loosen, improves safety in using；This product side's tooth Passage design between corrugated plate and corrugated plate can be prevented effectively from heat sink strip air slaking, extends the use longevity of radiator Life；And not in use by any spray liniment, reduce cost.

Accompanying drawing explanation

Fig. 1 is the corrugated plate structural representation of PTC electric heater in prior art；

Fig. 2 is the corrugated plate structural representation of PTC electric heater in embodiment；

Fig. 3 is the perspective view of PTC electric heater in embodiment.

Detailed description of the invention

Below the technical solution of the utility model is described in detail.

As it is shown on figure 3, the PTC electric heater in the present embodiment includes heat pipe 1, is placed in the sky of heat pipe 1 Heat generating core 2 in chamber and be pasted onto the heat sink strip 3 of heat pipe 1 upper and lower surface by AB silica gel, wherein heat conduction The each fixed bonding of pipe 1 upper and lower surface has two heat sink strips 3；Heat sink strip 3 is by corrugated plate 31 and clamping at ripple The stator 32 of sheet 31 both sides is constituted, and wherein corrugated plate 31 is as in figure 2 it is shown, the side's of being tooth ripples shape, with Contact in face between stator 32, use AB silica gel to bond together；It is clipped in the ripple between stator 32 Sheet 31 is two, and is parallel to each other, and forms passage 33 between two parallel corrugated plates 31.

PTC electric heater in the present embodiment is longitudinally mounted in A/C evaporator, runs in using, is formed Steam can be overlying on heat sink strip 3 surface of this PTC electric heater, and on the side's of being attached to tooth ripples sheet 31, but It is to be not easy coalescence；Flow in the thermal current in electric operation passage 33 between adjacent side's tooth ripples sheet 31, Driving the water flow formed to accelerate its evaporation, moisture would not contact with the heat sink strip 3 of electric heater for a long time. When the steam formed is more, the water of attachment directly dripped by the passage 33 between corrugated fins bar 3 or Flow down eliminating.

Claims

1. a PTC electric heater, including heat pipe (1), heat generating core (2) and heat sink strip (3), wherein Heat generating core (2) is placed in the cavity of heat pipe (1), and heat sink strip (3) is fixed on the upper and lower of heat pipe (1) On surface；It is characterized in that: described heat sink strip (3) includes corrugated plate (31) and clamping in corrugated plate both sides Stator (32), corrugated plate (31) side of being tooth ripples shape, is face with the junction of stator (32) Contact.

PTC electric heater the most according to claim 1, it is characterised in that: it is clipped in described stator (32) Between corrugated plate (31) be two or more, every corrugated plate is arranged in parallel, has gap each other Form passage (33).

PTC electric heater the most according to claim 1, it is characterised in that: described heat sink strip (3) with Heat pipe (1) is by bonding agent or is welded and fixed together.

PTC electric heater the most according to claim 1 and 2, it is characterised in that: described corrugated plate (31) With stator (32) by bonding agent or together with being welded and fixed.

5. according to the PTC electric heater described in claim 1,2 or 3, it is characterised in that: in described heat conduction Pipe (1) one or both sides can have two or more heat sink strip (3) to be fixed on one in the direction of the width Rise.