CN203655540U

CN203655540U - Power adjustable wind power cabin PTC heater

Info

Publication number: CN203655540U
Application number: CN201320885559.8U
Authority: CN
Inventors: 谢运伟; 王东; 郑平; 易春元
Original assignee: DEYANG ZHIKE ELECTRONICS Co Ltd
Current assignee: DEYANG ZHIKE ELECTRONICS Co Ltd
Priority date: 2013-12-31
Filing date: 2013-12-31
Publication date: 2014-06-18
Anticipated expiration: 2023-12-31

Abstract

The utility model discloses a PTC heater, and particularly relates to a power adjustable wind power cabin PTC heater, belonging to the technical field of wind power cabin heating equipment. The power adjustable wind power cabin PTC heater includes at least two PTC heating units, each PTC heating unit forms at least one group of PTC heating power set, PTC heating units in the same PTC heating power set are in parallel connection, and at least one PTC heating unit and/or at least one group of heater power set are/is provided with a power switch. The power adjustable wind power cabin PTC heater is adjustable in heating power, can prevent the PTC heater from generating short-time large current when the PTC heater performs power-on starting at a normal temperature, and reduces impacts on the power switch even an electrical network. Meanwhile, the adaptability of the PTC heater to heating environment can be improved.

Description

A kind of wind-power engine room ptc heater of power-adjustable

Technical field

The utility model relates to a kind of ptc heater, and particularly a kind of adjustable ptc heater of power for wind-power engine room heating, belongs to wind-power engine room heating plant technical field.

Background technique

PTC is the english abbreviation of " positive temperature coefficient (Positive Temperature Coefficient) ", the thermistor that uses ptc material to produce has the characteristic that resistance increases with temperature rise, thereby the rear self-heating of powering up PTC thermistor heats up and makes its resistance enter transition to increase district and automatically reduce power consumption and make heter temperature remain on steady state value, the production technology of this steady temperature and heating element is relevant and have nothing to do with ambient temperature with basic, therefore ptc heater has constant temp. warming, the flames of anger, it is high that heat passes conversion efficiency, natural life-span is long and be subject to supply voltage to affect little feature, and the extensive heater block as engine compartment heater.

Ptc heater is classified from structure, there are following three kinds of modes: (1) is taking heat conduction as main PTC ceramic heater, be characterized in electrode plate (conduction is held concurrently and the conducted heat) insulation of installing by the PTC heating element surface multilayer heat transfer structures such as heat conduction thermal storage plate (have be also attached with heat-conducting glue) of (holding concurrently and conduct heat every electricity) layer by layer, the heat that PTC element is sent passes on heated object; (2) the PTC pottery hot air device that uses gas fan to carry out convection type heat transfer, relies on hot blast that heat is sent on heating object. and be characterized in that output power is large, and can automatically regulate and blow out wind-warm syndrome and quantity of heat given up; (3) infrared-radiation heater, the heat that send rapidly on the actual PTC of the utilization element of its feature or heat conduction board surface excites its surperficial far-infrared coating of contact or far infrared material to make it to give off infrared rays directly or indirectly, has just formed PTC ceramic infrared radiation heater.

Wind-power engine room heater field adopts the ptc heater of firm power conventionally, ptc heater is at normal temperatures because its resistance value is less, thereby in the time powering on operation, there will be the large electric current operation of short time, this larger electric current may to power switch even electrical network impact, thereby cause the false tripping of power switch, in this constant ptc heater operation process, be difficult to carry out power adjustments in addition, heating environment fitness is lower.

Summary of the invention

Goal of the invention of the present utility model is: for the problem of above-mentioned existence, provide a kind of power adjustable ptc heater, avoid ptc heater to occur at normal temperatures the large electric current of short time when electrifying startup, reduce to power switch even electrical network impact, improve the adaptability of ptc heater to heating environment simultaneously.

The technical solution adopted in the utility model is as follows:

A kind of wind-power engine room ptc heater of power-adjustable, comprise at least two PTC heating units, described PTC heating unit forms at least one group of PTC heating power group, be positioned at the PTC heating unit parallel connection of same PTC heating power group, and at least one PTC heating unit is or/and be provided with power switch at least one group of heater power group.

Described power switch is relay contactor, manual selection switch, controllable silicon or high pressure type transistor.

Described PTC heating power group is 1 group.

The integral multiple group that described PTC heating power group is 3, for example 3,6,9,12 groups, and the like, to be applicable to the applied environment of three phase mains symmetry.

Wind-power engine room ptc heater input voltage is interchange or the direct current of 220V, 380V, 400V or 690V.

The wind-power engine room ptc heater of power-adjustable of the present utility model adopts at least two PTC heating unit compositions, described PTC heating unit forms at least one group of PTC heating power group, be positioned at the PTC heating unit parallel connection of same PTC heating power group, and at least one PTC heating unit is or/and be provided with power switch at least one group of heater power group, by having completed the adjusting to described wind-power engine room ptc heater heating power by controlling power switch under this technological scheme.Described controllable silicon can be used for Alternating Current Power Supply, and high pressure type transistor can be used for direct current supply, the optional triode of high pressure type transistor, field effect transistor, IGBT etc.

Wind-power engine room ptc heater of the present utility model, group structure more than heater can adopt point, for single phase poaer supply or under the three phase power application of the symmetrical requirement of not loading, can drop into one or more power packages operation by selection demand, thereby realize the adjustable object of power; And need symmetrical applied environment for three phase mains, can select every each each mode of throwing one or more power packages mutually to realize.

In sum, owing to having adopted technique scheme, the beneficial effects of the utility model are: the wind-power engine room ptc heater heating power capable of regulating of described power-adjustable, avoid ptc heater to occur at normal temperatures the large electric current of short time when electrifying startup simultaneously, reduce to power switch even electrical network impact, improve the adaptability of ptc heater to heating environment simultaneously.

Brief description of the drawings

Fig. 1 is an example structure schematic diagram of the present utility model;

Fig. 2 is another example structure schematic diagram of the present utility model;

Fig. 3 is another example structure schematic diagram of the present utility model.

Mark in figure: 1-PTC heating unit, 2-PTC heating power group, 3-power switch.

Embodiment

Below in conjunction with accompanying drawing, the utility model is described in detail.

In order to make the purpose of this utility model, technological scheme and advantage clearer, below in conjunction with drawings and Examples, the utility model is further elaborated.Should be appreciated that specific embodiment described herein is only in order to explain the utility model, and be not used in restriction the utility model.

embodiment 1

The wind-power engine room ptc heater of power-adjustable of the present utility model, its structure is shown as shown in Figure 1, comprise two PTC heating units 1, described PTC heating unit 1 composes in parallel one group of PTC heating power group 2, on one of them PTC heating unit 1 branch road, is provided with power switch 3.

The wind-power engine room ptc heater of power-adjustable of the present utility model, the Alternating Current Power Supply of employing 220V, 380 V, 400 V or 690 V, described power switch 3 is relay contactor, manual selection switch or controllable silicon.

The adjustment of described wind-power engine room ptc heater power is to be undertaken by the switch of power switch 3.

embodiment 2

The wind-power engine room ptc heater of power-adjustable of the present utility model, its structure is shown as shown in Figure 2, comprise that 1, two PTC heating unit 1 of two PTC heating units forms two groups of PTC heating power groups 2, on one of them total road of PTC heating power group 2, be provided with power switch 3.

The wind-power engine room ptc heater of power-adjustable of the present utility model, adopt the direct current supply of 220V, 380 V, 400 V or 690 V, described power switch 3 is relay contactor, manual selection switch or high pressure type transistor switch, the optional triode of described high pressure type transistor switch, field effect transistor, IGBT etc.

embodiment 3

The wind-power engine room ptc heater of power-adjustable of the present utility model, its structure is shown as shown in Figure 3, comprise 12 PTC heating units 1,4 PTC heating units 1 are one group, form 3 groups of PTC heating power groups 2, be positioned at PTC heating unit 1 parallel connection of same PTC heating power group 2, each PTC heating unit 1 branch road is provided with power switch 3, and is also provided with power switch 3 on each total road of PTC heating power group 2.

The wind-power engine room ptc heater of power-adjustable of the present utility model, the Alternating Current Power Supply of employing 220V, 380V, 400V or 690V, described power switch 3 is relay contactor, manual selection switch or controllable silicon.

The adjustment of described wind-power engine room ptc heater power is to be undertaken by the switch of any power switch 3.

Employing in the present embodiment be 3 groups, identical with it, PTC heating power group 2 can be set to 6 groups, 9 groups, 12 groups etc., the like 3 integral multiple group.

The wind-power engine room ptc heater of power-adjustable of the present utility model, heating power capable of regulating, avoid ptc heater to occur at normal temperatures the large electric current of short time when electrifying startup simultaneously, reduce to power switch even electrical network impact, improve the adaptability of ptc heater to heating environment simultaneously.

The foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all any amendments of doing within spirit of the present utility model and principle, be equal to and replace and improvement etc., within all should being included in protection domain of the present utility model.

Claims

1. the wind-power engine room ptc heater of a power-adjustable, it is characterized in that: comprise at least two PTC heating units (1), described PTC heating unit (1) forms at least one group of PTC heating power group (2), be positioned at PTC heating unit (1) parallel connection of same PTC heating power group (2), and at least one PTC heating unit (1) is or/and be provided with power switch (3) at least one group of heater power group (2).

2. the wind-power engine room ptc heater of power-adjustable as claimed in claim 1, is characterized in that: described power switch (3) is relay contactor, manual selection switch, controllable silicon or high pressure type transistor.

3. the wind-power engine room ptc heater of power-adjustable as claimed in claim 1 or 2, is characterized in that: described PTC heating power group (2) is 1 group.

4. the wind-power engine room ptc heater of power-adjustable as claimed in claim 1 or 2, is characterized in that: the integral multiple group that described PTC heating power group (2) is 3.

5. the wind-power engine room ptc heater of power-adjustable as claimed in claim 1 or 2, is characterized in that: wind-power engine room ptc heater input voltage is interchange or the direct current of 220V, 380V, 400V or 690V.