CN2303421Y

CN2303421Y - PTC electric heater's fixation support, and PTC electric heater

Info

Publication number: CN2303421Y
Application number: CN 97236279
Authority: CN
Inventors: 蒋国屏
Original assignee: 蒋国屏
Current assignee: Yixing Guowei Chinaware Electrical Co., Ltd.
Priority date: 1997-06-08
Filing date: 1997-06-08
Publication date: 1999-01-06
Anticipated expiration: 2007-06-08

Abstract

The utility model relates to a PTC electric heater and a fixing bracket used in PTC electric heaters, which has an improved structure. The utility model is characterized in that the fixing bracket is composed of an about vertical supporting surface and an installation and connection surface, wherein, the direction of the thickness of the vertical supporting surface is provided with an inwards concave rectangular pattern cavity which is matched with the PTC electric heating element which is accommodated and supported, a position in the pattern cavity corresponding to the position of a PTC heating sheet is provided with an extended spacing wall, the thickness of the spacing wall is slightly thiner than the thickness of the PTC heating sheet, and the installation and connection surface is provided with installation and fixing holes. The electric heater is fixed and supported by the fixing bracket.

Description

A kind of PTC electric heater is with fixed support and PTC electric heater

Utility model is about the PTC electric heater being reached fixing improvement with support.

The corrugated PTC electric heater fixed support that electric heating appliance such as family expenses warm-air drier, air conditioner etc. use, the stiff end carriage that generally uses plastic frame posture fixed mount and plastics not to have to turn up limit and installing hole.With the fixing corrugated PTC electric heating device of above-mentioned two kinds of fixed mounts, its major defect one be install inconvenient, assembling, maintenance difficult, and fixedly connected fastness is also strong inadequately; The 2nd, because general working of plastics temperature tolerance is poor, easily aging being directed at broken down.

The purpose of utility model is to overcome the deficiency of above-mentioned prior art, provides a kind of simple in structure, and it is convenient and reliable to install and fix, corrugated PTC electric heater fixed support safe in utilization.

Another purpose of utility model is to provide a kind of PTC electric heater that uses the said fixing support.

For achieving the above object, the said PTC electric heater of utility model fixed support, comprise big to vertical bearing-surface and by dress joint face composition, wherein vertical bearing-surface thickness direction has the rectangle die cavity of the indent that matches with the PTC electric heating device of admitting, have one than the slightly thin spaced walls of stretching out of PTC heating plate thickness in corresponding PTC heating plate position in the said die cavity, install and fix the hole by having on the dress joint face.

Spill die cavity on the utility model fixed support vertical plane can hold one group of PTC electric heating device, also can hold many group PTC electric heating devices, many group PTC electric heating devices can be arranged or Different Plane is staggered up and down places side by side arrangement in same plane parallel, therefore admit the spill die cavity of ptc heater spare to arrange also with it to having parallel or placing side by side arrangement.Spill die cavity on the vertical plane can be used to lead to as intermediate supports usefulness, also can be outside sealing, on the end front cover, leave and be electrically connected hole or groove, pass through for electric connecting wire or leading foot.The fixed support of outside sealing skids off from end face the restriction electric heating device, and strengthening fixedly, the stability of ptc heater spare has extremely long-pending effect.Die cavity has the outstanding spaced walls thin slightly than PTC heating plate thickness every group of PTC heating plate position, its effect one is to separate up and down two corrugated heat sink strips of PTC electric heating device, prevents that up and down the corrugated heat sink strip of both sides is out of shape under external force and causes electrical short; The 2nd, more help ptc heater spare location and fixing, spaced walls has increased the contact-making surface of fixed support and heater element, thereby to improving strength of connection positive role is arranged; The 3rd, the increase of spaced walls has also strengthened the intensity of fixed support die cavity, prevents distortion, and helps improving support bracket fastened rate of finished products.The said face of turning up that has the fixed installation hole of utility model can be in the both sides of admitting ptc heater spare face, promptly on the plane of same cross section, fixed support is just turned up face by three and is formed as Fig. 5 like this, the centre erect for admitting the face of ptc heater spare, both sides are the face that is used for fixing; The face of turning up that has the fixed installation hole also can be at the rear portion that erects supporting surface, and promptly on two different faces, fixed support is made up of as Fig. 1 two faces like this.Said fixing by the dress hole, a kind of mode preferably adopts strip or Long Circle, helps convenient location like this by adorning and fine setting.The utility model fixed support adopts pottery or engineering plastics to make existing like this electrical insulating property preferably, the higher temperature of ability again.

Utility model PTC electric heater, the fixed support that comprises corrugated ptc heater spare and two ends, it is characterized in that said fixed support left-right symmetric, support is made up of to vertical bearing-surface and by the dress joint face big, wherein vertical bearing-surface thickness direction has the rectangle die cavity with the indent of admitting supporting PTC electric heating device to match, have one than the slightly thin spaced walls of stretching out of PTC heating plate thickness in corresponding PTC heating plate position in the said die cavity, install and fix the hole by having on the dress joint face.The utility model electric heater can have one group of ptc heater, and many group ptc heaters also can be arranged, and the arrangement of heater element can also can be staggered in Different Plane up and down on same plane.

Further specify utility model structure and advantage below in conjunction with accompanying drawing.

Fig. 1 is the fixing rack structure schematic diagram of fixed installation hole at the single group of rearward end supporting ptc heater.

Fig. 2 is that Figure 1A-A is to structure chart.

Fig. 3 is the fixing rack structure schematic diagram of fixed installation hole at the many groups of rearward end supporting ptc heater.

Fig. 4 is that Fig. 3 B-B is to structure chart.

Fig. 5 is the fixing rack structure schematic diagram of fixed installation hole at two-side supporting list group ptc heater.

Fig. 6 is that Fig. 5 A-A is to structure chart.

Fig. 7 organizes the fixing rack structure schematic diagram of ptc heater more at two-side supporting for the fixed installation hole.

Fig. 8 is that Fig. 7 A-A is to structure chart.

Fig. 9,10 is respectively the fixed installation hole and supports PTC electric heater structural representations at two kinds of fixed supports of ipsilateral not.

Embodiment 1: referring to accompanying drawing 1,2, fixed support is made by pottery or engineering plastics, form by rectangular mutually bearing-surface with by the dress joint face, it is big to the concave shaped die cavity 3 that coincide that vertical supporting admits the thickness direction of ptc heater spare face 1 to have with heater element, end face 4 sealings of the die cavity outside, have on it and be electrically connected hole 5, die cavity has in PTC heating plate position than its slightly thin spaced walls 6.By the rear side of dress joint face 2, have some being used on it by the fixing oval fixed installation hole 7 of dress at vertical bearing-surface 1.

Embodiment 2: as embodiment 1, admit the spill die cavity 3 of PTC to have two groups, can hold two groups of ptc heater spares.

Embodiment 3: as described above, have install and fix hole 7 by the dress joint face 2 at bearing-surface 1 both sides such as Fig. 5-8.

Embodiment 4: be embedded in the symmetrical fixed support (concave surface is relative) as Fig. 9,10 corrugated PTC fire-bars, 8 two ends, connect fastness for strengthening it, can be in the spill die cavity filling heatproof insulating adhesive

Utility model is because employing is simple in structure, and the fixed support of band installing hole has not only been reinforced the PTC electric heater and connect fastness on electrical equipment, and makes installation and maintenance become convenient.Spaced walls in the indent die cavity makes that insulation is reliable between the ripple heat sink strip of opposed polarity, and has increased PTC heater spare and the support bracket fastened joint face that contacts, thereby increased bonding strength, and secondly spaced walls is also helpful to the intensity of increase support die cavity.Especially adopt the high ceramic fixed support of the reliable intensity of insulation safety, significantly improved the heatproof moisture-proof, safe and reliable, prolonged useful life.

Claims

1, a kind of PTC electric heater fixed support, it is characterized in that described support is by forming to vertical bearing-surface and by the dress joint face greatly, wherein vertical bearing-surface thickness direction has the rectangle die cavity of the indent that matches with the PTC electric heating device of admitting supporting, have one than the slightly thin spaced walls of stretching out of PTC heating plate thickness in corresponding PTC heating plate position in the said die cavity, install and fix the hole by having on the dress joint face.

2, according to the described PTC electric heater of claim 1 fixed support, it is characterized in that there is the end envelope in the said spill die cavity outside, end is sealed up to leave and is electrically connected hole or groove.

3,, it is characterized in that the said fixing hole that connects by load is strip or long oval shape according to claim 1 or 2 described PTC electric heating fixed supports.

4,, it is characterized in that the indent rectangle die cavity of said hard allotment bearing surface thickness direction has two at least according to the described PTC electric heating of claim 3 fixed support.

5, a kind of PTC electric heater, comprise undulatory PTC electric heating device, and the fixed support at two ends, it is characterized in that said fixed support left-right symmetric, support is made up of to vertical bearing-surface and by the dress joint face big, the bearing-surface thickness direction that its backbone is straight has the rectangle die cavity of the indent that matches with the PTC electric heating device of admitting supporting, has one than the slightly thin spaced walls of stretching out of PTC heating plate thickness in corresponding PTC heating plate position in the said die cavity, installs and fixes the hole by having on the dress joint face.

6,, it is characterized in that said PTC electric heating device has a plurality of according to the described PTC electric heater of claim 5.