A plastic shell structure of a wind-warming PTC heater

Abstract

The utility model discloses a kind of wind warm PTC heater plastic shell structure, including air conditioner box and wind warm PTC heater, the wind warm PTC heater is located the inside of the air conditioner box, temperature sensor one is installed on the left and right foot air duct of the air conditioner box;The wind warm PTC heater includes plastic upper shell, plastic lower shell, heating core and temperature sensor two, the heating core is located between the plastic upper shell and the plastic lower shell.Effective calibration wind warm PTC heater core side edge installed temperature sensor two and the detection value difference between temperature sensor one set by air conditioner box foot pipe, air forms circulation in ventilation hole one and ventilation hole two, temperature sensor two periphery air is formed with heat dissipation, avoid the closed air not to circulate, the heat accumulation problem caused;Realize temperature sensor two temperature reduction, and air conditioner box foot pipe foot temperature difference <10 ℃, improve the comfort of user air conditioner.

Description

Technical Field

[0001] This utility model relates to the field of PTC heater technology, and more specifically, to a plastic shell structure for a wind-heated PTC heater. Background Technology

[0002] Previously, vehicle air conditioning systems had air duct temperature sensors installed in the air conditioning unit for the face, feet, and defrost ducts. However, with the rapid development of new energy vehicles, the air conditioning units have eliminated the temperature sensors for the defrost and face air ducts. Instead, the temperature sensor on the PTC heater is used as the outlet air temperature collection point. As a result, the temperature sensor on the side of the PTC heater core has poor heat dissipation in the enclosed air. During the air conditioning heating process, the outlet air temperature detected by the PTC heater core is 20°C higher than the temperature value detected by the temperature sensor in the foot air duct of the air conditioning unit. This seriously affects the temperature control logic of the vehicle's automatic air conditioning and passenger comfort.

[0003] There are currently no effective solutions to the problems in the relevant technologies. Utility Model Content

[0004] In view of the problems in the related technologies, this utility model proposes a plastic shell structure for a wind-heated PTC heater to overcome the above-mentioned technical problems existing in the existing related technologies.

[0005] Therefore, the specific technical solution adopted by this utility model is as follows:

[0006] A plastic shell structure for a wind-heated PTC heater includes an air conditioning unit and a wind-heated PTC heater. The wind-heated PTC heater is located inside the air conditioning unit. Temperature sensors are installed on the left and right foot ducts of the air conditioning unit.

[0007] The air-heated PTC heater includes a plastic upper shell, a plastic lower shell, a heating core, and a second temperature sensor. The heating core is located between the plastic upper shell and the plastic lower shell and is installed on the plastic lower shell. The plastic upper shell and the plastic lower shell are fastened together to form a shell structure. There are multiple sets of the second temperature sensor, which are installed on the side of the heat dissipation strip of the heating core.

[0008] Preferably, the plastic upper shell is provided with a ventilation hole, the position of which corresponds to the position of the temperature sensor.

[0009] Preferably, the lower plastic shell is provided with a second ventilation hole, the position of which corresponds to the position of the second temperature sensor.

[0010] Preferably, the first ventilation hole and the second ventilation hole are positioned opposite each other, and air flows through the first ventilation hole and the second ventilation hole.

[0011] The beneficial effects of this utility model are as follows: It can effectively calibrate the difference in detection values ​​between the temperature sensor two installed on the side of the PTC heater core and the temperature sensor one installed in the foot blowing pipe of the air conditioner. Air flows through the ventilation holes one and two, which dissipates heat from the air around the temperature sensor two, avoiding the problem of heat accumulation caused by air stagnation. It achieves a temperature reduction of the temperature sensor two, with a temperature difference of less than 10°C between it and the foot blowing pipe of the air conditioner, thus improving the comfort of the user's air conditioning. Attached Figure Description

[0012] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0013] Figure 1 This is a structural schematic diagram of a plastic shell structure for a PTC heater with air heating according to an embodiment of the present utility model;

[0014] Figure 2 This is a side view of the plastic shell structure of a PTC heater according to an embodiment of the present invention;

[0015] Figure 3 This is an exploded view of the air-heated PTC heater in the plastic shell structure of an air-heated PTC heater according to an embodiment of the present utility model;

[0016] Figure 4 This is a schematic diagram of the structure of a wind-heated PTC heater in a plastic shell structure according to an embodiment of the present utility model;

[0017] Figure 5 This is a side view of the air-heated PTC heater in the plastic shell structure of an air-heated PTC heater according to an embodiment of the present utility model;

[0018] Figure 6 This is a schematic diagram of the structure of the plastic upper shell in a plastic shell structure of a wind-heated PTC heater according to an embodiment of the present utility model;

[0019] Figure 7 This is a schematic diagram of the lower plastic shell in a plastic shell structure of a PTC heater with air heating according to an embodiment of the present utility model.

[0020] In the picture:

[0021] 1. Air conditioner housing; 2. Temperature sensor one; 3. Plastic upper shell; 4. Plastic lower shell; 5. Heating core; 6. Temperature sensor two; 7. Ventilation hole one; 8. Ventilation hole two. Detailed Implementation

[0022] To further illustrate the various embodiments, the present invention provides accompanying drawings, which are part of the disclosure of the present invention. These drawings are mainly used to illustrate the embodiments and can be used in conjunction with the relevant descriptions in the specification to explain the operating principles of the embodiments. With reference to these contents, those skilled in the art should be able to understand other possible implementation methods and the advantages of the present invention. The components in the drawings are not drawn to scale, and similar component symbols are usually used to represent similar components.

[0023] According to an embodiment of the present invention, a plastic shell structure for a wind-heated PTC heater is provided.

[0024] Example 1:

[0025] like Figure 1-7 As shown, the plastic shell structure of the air-heated PTC heater according to the embodiment of the present utility model includes an air conditioning unit 1 and an air-heated PTC heater. The air-heated PTC heater is located inside the air conditioning unit 1. Temperature sensors 2 are installed on the left and right foot ducts of the air conditioning unit 1.

[0026] The air-heated PTC heater includes a plastic upper shell 3, a plastic lower shell 4, a heating core 5, and a second temperature sensor 6. The heating core 5 is located between the plastic upper shell 3 and the plastic lower shell 4, and is installed on the plastic lower shell 4. The plastic upper shell 3 and the plastic lower shell 4 are fastened together to form a shell structure. There are multiple sets of second temperature sensors 6, which are installed on the side of the heat dissipation strip of the heating core 5.

[0027] Example 2:

[0028] like Figure 1-7 As shown, the upper plastic shell 3 is provided with a ventilation hole 7, the position of which corresponds to the position of the second temperature sensor 6. The lower plastic shell 4 is provided with a ventilation hole 8, the position of which corresponds to the position of the second temperature sensor 6. The ventilation holes 7 and 8 are positioned opposite each other, and air circulates through the ventilation holes 7 and 8.

[0029] In summary, by utilizing the above-mentioned technical solution of this utility model, the difference in detection values ​​between the temperature sensor 26 installed on the side of the PTC heater core and the temperature sensor 2 installed in the foot blowing pipe of the air conditioning unit can be effectively calibrated. Air flows through the ventilation holes 17 and 28, dissipating heat from the air around the temperature sensor 26 and avoiding the problem of heat accumulation caused by air stagnation. This results in a reduction in the temperature of the temperature sensor 26, with the temperature difference between it and the foot blowing pipe of the air conditioning unit being less than 10°C, thus improving the comfort of the user's air conditioning.

[0030] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A plastic shell structure for a wind-heated PTC heater, characterized in that, It includes an air conditioning unit (1) and a PTC heater. The PTC heater is located inside the air conditioning unit (1). Temperature sensors (2) are installed on the left and right foot ducts of the air conditioning unit (1). The air-heated PTC heater includes a plastic upper shell (3), a plastic lower shell (4), a heating core (5), and a second temperature sensor (6). The heating core (5) is located between the plastic upper shell (3) and the plastic lower shell (4) and is installed on the plastic lower shell (4). The plastic upper shell (3) and the plastic lower shell (4) are fastened together to form a shell structure. There are multiple sets of the second temperature sensor (6), which are installed on the side of the heat dissipation strip of the heating core (5).

2. The plastic shell structure of a PTC heater with air heating according to claim 1, characterized in that, The plastic upper shell (3) is provided with a ventilation hole (7), and the position of the ventilation hole (7) corresponds to the position of the temperature sensor (6).

3. The plastic shell structure of a wind-heated PTC heater according to claim 2, characterized in that, The plastic lower shell (4) is provided with a second ventilation hole (8), and the position of the second ventilation hole (8) corresponds to the position of the second temperature sensor (6).

4. The plastic shell structure of a PTC heater with air heating according to claim 3, characterized in that, The ventilation hole one (7) is positioned opposite to the ventilation hole two (8), and air flows through the ventilation hole one (7) and the ventilation hole two (8).

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