CN204836614U

CN204836614U - Insulating electric automobile PTC heater with shovel piece structure

Info

Publication number: CN204836614U
Application number: CN201520479329.0U
Authority: CN
Inventors: 吴九斤; 陈剑斌; 李江; 孙雨; 邹勇
Original assignee: Xiaogan Huagong Gaoli Electron Co Ltd
Current assignee: Xiaogan Huagong Gaoli Electron Co Ltd
Priority date: 2015-07-06
Filing date: 2015-07-06
Publication date: 2015-12-02
Anticipated expiration: 2025-07-06

Abstract

The utility model relates to an insulating electric automobile PTC heater with shovel piece structure has the upper cover in the framework, in the PTC heater that has a shovel piece structure inserted the socket of framework, high temperature resistant baffle, two were in that the PTC heater in the outside is external to have hot protector no. 1, a hot protector no. 2, have the PCB board on the high temperature resistant baffle, and the key is inserted and the PCB board welding that realizes stepping control to the PTC heating unit that has a shovel piece structure, has the inserted sheet on the PCB board, PCB board upper cover, on the hot protector connecting wire that links on the hot protector no. 2 passes high temperature resistant baffle, the plug covered on, of PCB board draws, two anodal high temperature resistant lines, the high temperature resistant line of two negative poles inserted at PCB board inserted sheet pass the plug of covering and draw. The utility model discloses long service life, light in weight, the radiating effect is good, and heating power is high, frequency control can carry out, it economizes on fuel to play subtract can the effect, stable and reliable operation.

Description

There is the insulated electro electrical automobile ptc heater of shovel piece structure

Technical field

The utility model relates to a kind of insulated electro electrical automobile ptc heater with shovel piece structure.

Background technology

Along with global range energy-saving and reduction of discharging need, electric automobile is the new direction of of development of automobile, and PTC (abbreviation of PositiveTemperatureCoefficient) makes a general reference the very large semi-conducting material of positive temperature coefficient, its main application can be divided into switch and heating two large classes, utilize heating class PTC stable performance, heat up rapidly, affect the features such as little by mains fluctuations, being widely used for now auxiliary heating and the defrosting in winter, is that electric automobile must an obligato part.

Ptc heater utilizes this feature of PTC thermistor constant temp. warming to carry out the heater element related to, several PTC heating tubes and heat sink strip dense arrangement are also fixed together with silica gel, there is thermal resistance little, the advantage that heat exchange efficiency is high, but the shape of the nearly all use of the heat-radiation belt due to this heater is all be converted into corrugated metal tape, radiating effect limitation is comparatively large, heavier-weight, heating power has arrived the limit and has been all the state that full gear runs at every turn, can not meet existing demand.Have impact on the performance of PTC performance.

Summary of the invention

The purpose of this utility model is for above-mentioned present situation, aims to provide a kind of thermal diffusivity good, and the heat efficiency is high, the insulated electro electrical automobile ptc heater with shovel piece structure of stable and reliable operation.

The implementation of the utility model object is, has the insulated electro electrical automobile ptc heater of shovel piece structure, framework has upper cover; The ptc heater with shovel piece structure inserts in the socket of framework, high temperature resistant baffle plate, two be in outside ptc heater outside be equipped with thermal protector one, thermal protector two, high temperature resistant baffle plate there is pcb board, PTC heating unit with shovel piece structure is inserted key and is welded with the pcb board realizing multiple-rank control, and pcb board has inserted sheet; Pcb board closes the lid; On thermal protector two connected thermal protector connecting line through on high temperature resistant baffle plate, pcb board, on the plug that covers draw; Be inserted in the high temperature resistant line of two positive poles of pcb board inserted sheet, the high temperature resistant line of two negative poles is drawn through the plug above covered.

The utility model solves existing ptc heater radiating effect to be limited to some extent, heavier-weight, fixes loosely between PTC and housing, is all the technical problem that full gear runs at every turn.Advantage of the present utility model is as follows:

Aluminum flat tube and heat sink strip that 1, PTC sheet is housed have made an entirety, do not need high-temperature plastic to connect flat shell and aluminium heat sink strip, extend useful life and weight is lighter;

2, due to the ventilative amount of shovel piece structure and radiating effect make this structure heats power can higher than the heating power of other structures;

3, the PTC heating unit with shovel piece structure welds with simple and easy pcb board, and two gears realizing user adjustable control, and play the effect that fuel-economizing subtracts energy;

4, separate with resistant to elevated temperatures black plastic plate between PTC heating unit and simple and easy pcb board, black high temp resistance plastic dam can improve bulk strength and improve product reliability of operation simultaneously;

5, real time temperature monitoring can be carried out further increase product reliability of operation under the prerequisite of overheated self-protection.

Accompanying drawing explanation

Fig. 1 is the utility model structural representation,

Fig. 2 is single impeller structure schematic diagram of the PTC unit of shovel piece structure,

Fig. 3 is the partial enlarged drawing of Fig. 2 part A,

Fig. 4 is pcb board structure vertical view,

The black high temp resistance baffle arrangement vertical view that Fig. 5 is.

Embodiment

With reference to the accompanying drawings in detail the utility model is described in detail.

With reference to Fig. 1,4,5, framework 1 there is upper cover 10.7 groups of ptc heaters 2 with shovel piece structure insert in the socket of framework 1, high temperature resistant baffle plate 4, two be in outside ptc heater outside be equipped with thermal protector 1, thermal protector 2 12, high temperature resistant baffle plate there is the pcb board 5 realizing multiple-rank control, pcb board has inserted sheet 7, the PTC heating unit with shovel piece structure is inserted key and is welded with pcb board; Pcb board closes the lid 10, on thermal protector two connected thermal protector connecting line 11 through on high temperature resistant baffle plate, pcb board, on the plug 9 that covers draw; The high temperature resistant line 8 of two positive poles high temperature resistant line 6, two negative pole being inserted in pcb board inserted sheet 7 is drawn through the plug 9 above covered.

Framework 1 is square shape framework, and adapts with automotive air-conditioning system air port.

With reference to Fig. 2,3, the ptc heater 2 that the utility model has a shovel piece structure by aluminum flat tube and on the equal single leaf of multiple length form, all single leaves 13 are arranged in parallel, and are 30-60 ° with the angle α of aluminum flat tube.Single leaf is the aluminum alloy sheet of thick 0.1-0.2mm, wide 25-30mm.

The radiation processes air flow power that is hampered when multiple parallel shovel piece is less, significantly can take away the heat that PTC produces, improve the radiating efficiency of heat-radiation belt, the efficiency of heating surface with the ptc heater of shovel piece structure can improve 20%-40%, thus solves the little problem of blowing power.

The multiple-rank control that carries out of simple and easy pcb board used can energy savings more, and black high temperature plastic plate can improve overall intensity and the stability of product.

Assembling the utility model, in the framework 1 first the PTC heating unit 2 of 7 groups of shovel piece structures is directly inserted into by Kong Weifen, then according to position, hole, thermal protector 1 is inserted wherein, then black high temp resistance 4 baffle plate and simple and easy pcb board 5 are inserted by the hole of slotting key successively, then by the slotting key of shovel piece PTC with have the pcb board 5 realizing multiple-rank control to be welded and fixed, thermal protector 1, thermal protector 2 12 is placed in the position shown in figure, with the high temperature resistant line 6 of two positive poles of terminal, the inserted sheet 7 of pcb board plugged respectively by the high temperature resistant line 8 of two negative poles, and 4 high temperature resistant lines and thermal protector connecting line 11 are passed plug 9, cover upper cover 10.

The utility model comprises middle-grade pattern and full shelves pattern, the PTC heating core number ratio that described middle-grade pattern and high-grade modes parallel use is 3:7-4:7, and the PTC heating unit 2 of the shovel piece structure that described full shelves modes parallel uses is the PTC heating unit 2 of all shovel piece structures.In the present embodiment, adopt the PTC heating unit 2 of 7 shovel piece structures, PTC heating unit 2 parallel connection of the shovel piece structure of odd number is one group, is formed middle-grade; The PTC heating unit 2 of whole shovel piece structure is connected in series, and works as full shelves simultaneously.

The operating circuit of middle-grade pattern described in the utility model and full shelves pattern is respectively equipped with protective device.Wherein, the protective device arranged under described middle-grade pattern is thermal protector 1, and the PTC heating unit 2 of the shovel piece structure that described middle-grade pattern uses is by being connected in series with described thermal protector 1 and thermal protector 2 12 after wire harness parallel connection.The protective device arranged under described full shelves pattern is thermal protector 1, and the PTC heating unit 2 of all shovel piece structures is by being connected in series with described thermal protector 1 after wire harness parallel connection.

Claims

1. there is the insulated electro electrical automobile ptc heater of shovel piece structure, it is characterized in that: framework has upper cover; The ptc heater with shovel piece structure inserts in the socket of framework, high temperature resistant baffle plate, two be in outside ptc heater outside be equipped with thermal protector one, thermal protector two, high temperature resistant baffle plate there is the pcb board realizing multiple-rank control, PTC heating unit with shovel piece structure is inserted key and is welded with pcb board, and pcb board has inserted sheet; On thermal protector two connected thermal protector connecting line through on high temperature resistant baffle plate, pcb board, on the plug that covers draw; Be inserted in the high temperature resistant line of two positive poles of pcb board inserted sheet, the high temperature resistant line of two negative poles is drawn through the plug above covered.

2. the insulated electro electrical automobile ptc heater with shovel piece structure according to claim 1, it is characterized in that: the ptc heater (2) with shovel piece structure by aluminum flat tube and on the equal single leaf of multiple length form, all single leaves (13) are arranged in parallel, and are 30-60 ° with the angle α of aluminum flat tube.

3. the insulated electro electrical automobile ptc heater with shovel piece structure according to claim 1, is characterized in that: the single leaf had on the ptc heater (2) of shovel piece structure is the aluminum alloy sheet of thick 0.1-0.2mm, wide 25-30mm.