CN206568844U - The on-board air conditioner heating arrangement of temperature equalization - Google Patents

Abstract

Managed the utility model discloses a kind of on-board air conditioner heating arrangement of temperature equalization, including PTC, the power distribution mode in the unit length of the PTC pipes is middle few, and two ends are more.The beneficial effects of the utility model are：The hot-air for the temperature that reaches unanimity can be provided for each air outlet.

Description

The on-board air conditioner heating arrangement of temperature equalization

Technical field

The utility model is related to a kind of on-board air conditioner heating arrangement of temperature equalization of use on automobile.

Background technology

Air conditioning for automobiles is the important component for lifting car comfort.Again in normal arrangement, four air outlets of air conditioning for automobiles All it is arranged on instrument desk, each one of instrument desk or so end, middle setting two arranged side by side, this four air outlets all pass through airduct It is connected with the evaporation tank of air-conditioning.And the PTC pipes for being responsible for heating uniformly heat the sky flowed through across the air outlet in evaporation tank Gas, the air after these heating flow to different air outlets by airduct nearby.Because the airduct positioned at both sides is apart from longer, The environment temperature on periphery is lower, thus same temperature warm air in the air outlet outflow from both sides, temperature can be than from centre The warm air temperature of two air outlet outflows is low many.If the power of raising PTC pipes simply, the problem of making both sides air outlet Rise, one to carry out the overall power consumptions of PTC excessive, has a strong impact on the course continuation mileage of electrokinetic cell, and two to carry out PTC temperature too high, in Between the working of plastics such as instrument desk in region can overheat, make vehicle in the hole.

Utility model content

The utility model technical issues that need to address are that the warm air temperature of existing on-board air conditioner is uneven, during two ends are low Between it is high, so as to provide a kind of on-board air conditioner heating arrangement of temperature equalization, the temperature that reaches unanimity can be provided for each air outlet Hot-air.

To achieve these goals, the utility model is adopted the following technical scheme that：A kind of on-board air conditioner of temperature equalization adds Power distribution mode in heat structure, including PTC pipes, the unit length of the PTC pipes is middle few, and two ends are more.

Common PTC pipes are provided with some heating plates, and the power of each heating plate is equal, because heating plate is on PTC pipes It is equally spaced, therefore the heating plate quantity being distributed in the unit length of PTC pipes is equal, power is also equal.Therefore, it is such Design can not be adjusted to required power paragraph by paragraph as needed, produce different temperatures.Therefore, the PTC pipes of the technical program design, its On heating plate and non-equidistant placement, but have density difference according to power requirement, positioned at middle part heating plate design Dredge, power is also smaller, and the part heating plate positioned at two ends is closeer, and power is also larger.In the case of energization, position Caloric value in the part at two ends is greater than positioned at middle caloric value, can carry out pre-compensation to the air for flowing through two ends Heating.During using on on-board air conditioner, the air that two ends are heated to higher temperature flows out from the air outlet at instrument desk two ends, just Can significantly it eliminate with there is the phenomenon of the larger temperature difference from the air of middle air outlet outflow.It is former without improving using this programme There is PTC power, do not interfere with battery durable ability, also because of unilateral heating hot-spot will not be caused dangerous, just can be well Solve each air outlet the heating temperature difference it is larger the problem of.On other PTC pipes, if being also to use small heating unit equidistant Combine, can also be transformed to obtain similar effect according to this programme.

Preferably, PTC pipe is divided into 4 deciles in the longitudinal direction, 4 air outlets are corresponded to respectively, and positioned at both sides The unit length power of the corresponding two deciles PTC pipes of air outlet be unit length power positioned at two middle decile PTC pipes More than 4 times.By actual measurement, the power distribution that length is divided into 4 deciles, two ends are carried out on the PTC pipes of 1000 watts of general power Two deciles respectively distribute 400 watts of power, and two middle deciles respectively distribute 100 watts of power, make air outlet temperature with regard to that can reach Degree is basically identical.

Preferably, being additionally provided with blower fan；The blower fan includes motor, and motor drives wind wheel, and the wind wheel is 2, respectively The left and right of correspondence PTC pipes.In the case of using blower fan, in order that 4 air outlets obtain stable air quantity, it is to avoid Because the air mass flow for flowing through PTC pipe different parts is different and causes temperature difference occur, the blower fan of this programme design is provided with left and right Two wind wheels, respectively for the left and right of PTC pipes, reduce or eliminate the feelings that diverse location air flow is interfered with each other Condition.

In summary, the beneficial effects of the utility model are：The heat for the temperature that reaches unanimity can be provided for each air outlet Air.

Brief description of the drawings

Fig. 1 is structural representation of the present utility model.

Fig. 2 is internal structure schematic diagram of the present utility model.

Wherein：1PTC is managed, 2 air outlets, 31 motors, 32 wind wheels, 4 fin, 5 wire harness.Arrow show air circulation side To.

Embodiment

The utility model is further described with embodiment below in conjunction with the accompanying drawings.

Embodiment as shown in Figure 1 and Figure 2, is that a kind of on-board air conditioner for the temperature equalization applied on new-energy automobile adds Heat structure.The on-board air conditioner heating arrangement of the temperature equalization includes two horizontal PTC pipes 1, if being equipped with each PTC pipes Dry heating plate, the single power of two PTC pipes is 500 watts, and it is 1000 watts to add up to general power, and is realized by wire harness 5 and power supply Electrical connection.The fin 4 that is fixed with gathered around PTC pipes helps to radiate.Each PTC pipes be divided into the longitudinal direction A, B, C, D4 equal segments, A sections and D section are at two ends, and heating plate distribution is closeer, and this two sections power is respectively 200 watts, B sections with C sections Centre, heating plate distribution is relatively dredged, and this two sections power is respectively 50 watts.Each equal segments pass through 1 on airduct correspondence instrument desk Individual air outlet 2, A, D sections correspond to instrument desk two ends respectively an air outlet, B, C section two air-out correspondingly in the middle of instrument desks Mouthful.The on-board air conditioner heating arrangement of this temperature equalization also includes one group of blower fan, and blower fan includes motor 31 and wind wheel 32, this example In, wind wheel is two, and the left and right of PTC pipes are corresponded to respectively, and blower fan is similarly electrically connected to power supply by wire harness.

In use, PTC pipes heat up after being powered, wherein A sections and D sections of unit length power density is big, and temperature is high, and B sections Unit length power density with C sections of parts is small, and temperature is low.Air flows through the fin of relevant position under the driving of wind wheel, Different temperature are obtained by heat exchange, the air of these different temperatures continues to flow out different air outlets from different airducts. Because the air outlet at instrument desk two ends is distant, therefore it is easier to turn cold.And the fin near by PTC pipes two ends enters After the advance temperature-compensating of row, the temperature of the warm air flowed out from the air outlet at instrument desk two ends can also be obtained and in the middle of instrument desk The close temperature of warm air of air outlet outflow, the comfort level of passenger is substantially improved.

Claims (3)

1. a kind of on-board air conditioner heating arrangement of temperature equalization, including PTC pipes (1), it is characterized in that, the unit of the PTC pipes is long Power distribution mode on degree is middle few, and two ends are more.

2. a kind of on-board air conditioner heating arrangement of temperature equalization according to claim 1, it is characterized in that, the PTC pipes exist It is divided into 4 deciles on length direction, 4 air outlets (2), two decile PTC pipes corresponding with the air outlet positioned at both sides is corresponded to respectively Unit length power be more than 4 times of the unit length power positioned at two middle decile PTC pipes.

3. a kind of on-board air conditioner heating arrangement of temperature equalization according to claim 1 or 2, it is characterized in that, it is additionally provided with wind Machine；The blower fan includes motor (31), and motor drives wind wheel (32), and the wind wheel is 2, correspond to respectively PTC pipes left and Right.