CN2432746Y - PTC electric heater - Google Patents
PTC electric heater Download PDFInfo
- Publication number
- CN2432746Y CN2432746Y CN 00221004 CN00221004U CN2432746Y CN 2432746 Y CN2432746 Y CN 2432746Y CN 00221004 CN00221004 CN 00221004 CN 00221004 U CN00221004 U CN 00221004U CN 2432746 Y CN2432746 Y CN 2432746Y
- Authority
- CN
- China
- Prior art keywords
- jack
- fixed support
- electric heater
- ptc electric
- heat sink
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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Abstract
The utility model relates to a PTC electric heater, which comprises a radiating strip, a fixed support and an overheat protector. The fixed support is fixed on both ends of the radiating strip. The utility model is characterized in that the fixed support is provided with a jack extending from the outer wall of the fixed support to the inner wall of a concave cavity; the overheat protector is inserted into the jack; one side positioned in the inner wall of the concave cavity is contacted with the radiating strip. The utility model has the advantages of simple structure, beautiful and practical appearance, sensitive response to abnormal temperature and high safety; the overheat protector is firmly installed without loosening and falling.
Description
The utility model relates to a kind of electric heater, particularly a kind of PTC electric heater (PTC-semistor) that has fixture.
In recent years, along with the expansion of the market demand, the scope of PTC electrical heater applications is more and more wider, and household appliance technical field particularly is as warm-air drier, dryer, air-conditioning or the like.At present; the overheated safety guard of PTC electric heater generally all is installed in the surface of corrugated heat sink strip; such mounting means makes the assembling maintenance inconvenient; overheated safety guard is loosening easily; even come off, the temperature that can not accurately measure electric heater also in time plays a protective role under abnormal conditions.And this mounting means is easy to generate metal fragment, in case fall into PTC element place, will directly cause arcing, dangerous phenomenon such as arcing.Another kind of mounting means is that two thermal protectors are installed on fixed support; promptly at one end on the fixed support disposable temperature fuse and recoverable bimetallic thermal protector are installed simultaneously; this pair thermal protectors of installing on a support do not meet the requirement of relative national standards.
The purpose of this utility model provides a kind of PTC electric heater face shaping that neither influences, and can make overheated safety guard assemble PTC electric heater easy to maintenance, dependable performance again.
The purpose of this utility model is achieved in that a kind of PTC electric heater; it comprises heat sink strip, fixed support and overheat protector; fixed support is fixed in the two ends of heat sink strip; it is characterized in that on fixed support, being provided with the jack that extend into the cavity inwall from the support outer wall; overheat protector inserts in the jack, and its side that is positioned at the cavity inwall contacts with heat sink strip.Described jack can be located at support bracket fastened sidewall.Described jack, its jack mouth can be provided with the fixedly cover plate of overheat protector.The utility model has mainly been made bigger improvement to the mounting means of overheated safety guard; this mounting means is provided with jack exactly on fixed support; overheated safety guard is inserted from the jack mouth; and the one side is closely contacted with the heat sink strip that is positioned at the support cavity; this mounting means neither influences the intrinsic face shaping of PTC electric heater; can guarantee that again overtemperature protection system and heat sink strip keep tight contact not separate, make overheated safety guard can be normally, accurately, work reliably.The position that is provided with of the jack of overheated safety guard is to be prerequisite to guarantee that overtemperature protection system can contact with heat sink strip.Therefore, jack can be arranged on sidewall, antetheca and the roof of support, and the direction of insertion can be forward, backward, left and to the right.After overheated safety guard was inserted into jack, available glue made it fixing, also can cover plate be set in order to be fixed overtemperature protection system at the jack mouth.Requirement according to standard; the PTC electric heater should be established the dual security protection device; therefore; the at one end support bracket fastened jack of the utility model inserts disposable temperature fuse; in the support bracket fastened jack of the other end, insert recoverable bimetallic thermal protector; the principle of its dual overtemperature protection is just often inoperative at electrical work; when break down stall or other reason of electrical equipment blower fan causes PTC electric heater self temperature to raise rapidly; when the temperature that passes to the protector position is higher than bimetal plate heat protector control temperature; at this moment sheet metal disconnects; PTC electric heater dump is avoided the too high accident that causes of heter temperature.If the bimetallic thermal protector is malfunctioning, the disposable thermal protector will fuse when temperature further raises, and play double protection,
The utility model compared with prior art, its remarkable advantage is: one, overheated safety guard is installed in the jack on the fixed support, does not change the profile of PTC electric heater, do not influence the installation of PTC electric heater; Two, overheated safety guard is installed in the jack, and is easy for installation, and maintenance and replacing are also convenient; Three, overheated safety guard is installed in the jack, and fixation is loosening, does not come off, and contacts reliable and stablely with heat sink strip, and temperature anomaly is quick on the draw, and safe and reliable, the scope of application is wide; Four, adopt dual overtemperature protection, and be installed in respectively on the fixed support of two ends, meet technical standard.
The utility model is described in further detail below in conjunction with drawings and Examples:
Fig. 1, Fig. 2, Fig. 3 are the support bracket fastened front view and two end views of not plate with cover.
Fig. 4, Fig. 5, Fig. 6 are the support bracket fastened front view and two end views of plate with cover.
Fig. 7, Fig. 8 are with two kinds of support bracket fastened PTC electric heaters.
Embodiment 1: the PTC electric heater that present embodiment is made, it comprises corrugated heat sink strip 1, fixed support 2 and overheat protector 3.Fixed support 2 is made by engineering plastics, can be high temperature resistant, mechanical strength and good insulating.Be provided with the jack 4 of an ecto-entad on the sidewall of fixed support 2, the size of jack 4 depends on the size of overheat protector 3.Heat sink strip 1 two ends are inserted in the cavity of fixed support 2; disposable temperature fuse and recoverable bimetallic thermal protector are inserted respectively in the support bracket fastened jack 4 in two ends; overheat protector 3 is contacted with heat sink strip 1; with the good binding material of high-temperature insulation with heat sink strip 1 and overheat protector 3 is bonded in the cavity respectively and jack in and heat sink strip 1 and overheat protector 3 are kept in touch, the leading-out end line of heat sink strip 1 and overheat protector 3 is connected get final product at last.
Embodiment 2: the PTC electric heater that present embodiment is made; basically identical with embodiment 1; different is at the jack mouth place of the jack 4 of fixed support 1 is provided with the cover plate 5 of bolt-type; during assembling; open cover plate 5, overheat protector 3 is inserted in the jack 4, closure flap 5 then; overheat protector 3 is pressed abd fixed in the jack 4 gets final product, do not need to bond with binding material.
Claims (3)
1. PTC electric heater; it comprises heat sink strip (1); fixed support (2) and overheat protector (3); fixed support (2) is fixed in the two ends of heat sink strip (1); it is characterized in that on fixed support (2), being provided with the jack (4) that extend into the cavity inwall from the support outer wall; overheat protector (3) inserts in the jack (4), and its side that is positioned at the cavity inwall contacts with heat sink strip (1).
2. PTC electric heater according to claim 1 is characterized in that described jack (4) can be located at sidewall, antetheca or the roof of fixed support (2).
3. according to claim 1,2 described PTC electric heaters, it is characterized in that being provided with cover plate (5) at the jack mouth of described jack (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00221004 CN2432746Y (en) | 2000-07-11 | 2000-07-11 | PTC electric heater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00221004 CN2432746Y (en) | 2000-07-11 | 2000-07-11 | PTC electric heater |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2432746Y true CN2432746Y (en) | 2001-05-30 |
Family
ID=33585958
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 00221004 Expired - Lifetime CN2432746Y (en) | 2000-07-11 | 2000-07-11 | PTC electric heater |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2432746Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100433940C (en) * | 2002-07-12 | 2008-11-12 | 乐金电子(天津)电器有限公司 | Mounting structure of heating coil insulating bracket securing board of electric heater |
-
2000
- 2000-07-11 CN CN 00221004 patent/CN2432746Y/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100433940C (en) * | 2002-07-12 | 2008-11-12 | 乐金电子(天津)电器有限公司 | Mounting structure of heating coil insulating bracket securing board of electric heater |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |
Granted publication date: 20010530 |