In-vehicle temperature sensor integrated structure, automobile air conditioner and automobile

Abstract

The utility model provides a kind of in-car temperature sensor integrated structure, automobile air conditioner and car, wherein, in-car temperature sensor integrated structure includes: crescent plate, air duct, temperature sensor;Crescent plate is set in the air inlet shell of blower, for dispersing high-speed area in blower air inlet shell, and give air duct installation point position;Air outlet of air duct is connected on the installation point position of crescent plate, air inlet of air duct is connected temperature sensor, air duct is used for the circulation of in-car air;Temperature sensor is used to measure in-car temperature, this integrated structure reduces venturi tube assembly, reduces the number of sub-components required in conventional mode, reduce cost;And after temperature sensor and the air of air duct are measured temperature and enter blower, enter in-car air conditioner circulation, this part of air measured temperature is not discharged to environment, this part of air is effectively utilized, reduce the waste of air conditioner air volume, realize energy saving.

Description

Technical Field

[0001] This utility model relates to the field of vehicle temperature sensor technology, specifically to an integrated structure for an in-vehicle temperature sensor, an automotive air conditioner, and an automobile. Background Technology

[0002] Currently, the most common integrated form of automotive air conditioning interior temperature sensors on the market is through Venturi tube assemblies. Venturi tubes are commonly used to measure the flow rate of various fluids. When a fluid passes through a pipe with different cross-sections, the flow velocity increases and the pressure decreases due to the local contraction of the cross-section, thus creating a pressure difference between the large and small cross-sections.

[0003] A Chinese patent with publication number CN207212518U discloses a Venturi tube device for an EGR system, comprising a Venturi tube, a temperature sensor, a pressure sensor, and a differential pressure sensor. The device is characterized in that: the cooling water holes of the Venturi tube are arranged below and between the positive and negative pressure taps; the temperature sensor hole, pressure sensor hole, positive pressure tap, and negative pressure tap are arranged in parallel, with their openings facing upwards; the temperature sensor is inserted into the temperature sensor hole and fixedly connected to the Venturi tube; the pressure sensor is inserted into the pressure sensor hole and fixedly connected to the Venturi tube; and the differential pressure sensor is arranged above the positive and negative pressure taps and fixedly connected to the Venturi tube.

[0004] Traditional in-vehicle temperature sensor components consist of a bellows connecting two ends: one for the in-vehicle temperature sensor and the other for a venturi tube assembly. This assembly comprises two plastic parts in a three-way configuration. One port connects directly to the bellows and then to the temperature sensor. The remaining two ports utilize their different cross-sectional areas to alter the gas flow rate. When the car's air conditioning is operating, a continuous flow of gas enters. As the gas passes through different cross-sections, its velocity decreases where the cross-sectional area is larger and increases where the cross-sectional area is smaller. Utilizing the principle of physics, where the flow velocity is higher, the pressure is lower. Therefore, a pressure difference is created between the two cross-sections of the venturi tube, thereby drawing in air from the vehicle interior and measuring the in-vehicle temperature.

[0005] The main drawbacks of this traditional integrated structure are: loss and waste of effective airflow from the air conditioning unit. Because the Venturi tube requires a continuous flow of air from the air conditioning unit, this airflow is directly discharged into the environment after passing through the Venturi tube, thus this portion of the airflow is not effectively utilized. According to actual measurements, the maximum leakage velocity at this point is approximately 7.8 m / s, equivalent to a loss of approximately 7 m³ / h of airflow. The varying diameters of the temperature sensors throughout the vehicle necessitate the development of different molds for the mating Venturi tubes, making it difficult to achieve standardization and platformization of parts. The large number of sub-parts increases assembly time and unit cost. Utility Model Content

[0006] In view of the deficiencies in the prior art, the purpose of this utility model is to provide an integrated structure for an in-vehicle temperature sensor, an automotive air conditioner, and an automobile.

[0007] According to the present invention, an integrated structure for an in-vehicle temperature sensor includes: a crescent-shaped plate, an air duct, and a temperature sensor. The crescent plate is installed inside the air intake housing of the blower to disperse the high-speed zone inside the air intake housing of the blower and to provide an installation point for the air guide duct. The air outlet of the air duct is connected to the mounting point of the crescent plate, and the air inlet of the air duct is connected to the temperature sensor. The air duct is used for the circulation of air inside the vehicle. The temperature sensor is used to measure the temperature inside the vehicle.

[0008] Preferably, the crescent plate and the air intake housing are injection molded as a single integrated structure.

[0009] Preferably, a connecting post is provided on the crescent plate, and the air outlet of the air guide pipe is connected to the connecting post.

[0010] Preferably, the connecting column and the crescent plate are an integral injection-molded structure.

[0011] Preferably, the temperature sensor is plugged into the air inlet of the air duct.

[0012] Preferably, the air duct is a corrugated pipe.

[0013] This utility model also provides an automotive air conditioner that adopts the in-vehicle temperature sensor integrated structure described in any one of the above descriptions.

[0014] This utility model also provides a car that uses the car air conditioner described above.

[0015] Compared with the prior art, the present invention has the following beneficial effects: This invention utilizes a crescent-shaped plate within the blower's intake housing to disperse high-speed zones and provide mounting points for the air duct. It directly leverages the existing blower to provide negative pressure, thereby guiding airflow into the vehicle. Air flows from the air inlet to the air outlet of the air duct. A temperature sensor positioned at the air inlet measures the temperature of the air flowing through the duct. This integrated structure reduces the need for a series of Venturi tube components for airflow, decreasing the number of sub-parts required in traditional designs and eliminating the need for different sized Venturi tubes to connect temperature sensors with varying end diameters, thus lowering costs. Furthermore, the air, after being temperature-measured by the temperature sensor and air duct, enters the blower and is circulated within the vehicle's air conditioning system. This portion of temperature-measured air is not released into the environment, effectively utilizing the air and reducing wasted airflow, thus achieving energy savings. Attached Figure Description

[0016] Other features, objects, and advantages of this invention will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings: Figure 1 This is a schematic diagram illustrating the integrated structure of the in-vehicle temperature sensor when the air duct is not connected to the crescent plate. Figure 2 This is a schematic diagram of the integrated structure of the in-vehicle temperature sensor when the air duct is connected to the crescent plate, which is the main feature of this utility model.

[0017] Figure reference numerals: 1. Crescent plate; 2. Air duct; 3. Temperature sensor; 4. Air inlet housing; 5. Connecting column; 6. Detailed Implementation

[0018] The present invention will now be described in detail with reference to specific embodiments. These embodiments will help those skilled in the art to further understand the present invention, but do not limit the present invention in any way. It should be noted that those skilled in the art can make several changes and improvements without departing from the concept of the present invention. These all fall within the protection scope of the present invention.

[0019] like Figure 1 as well as Figure 2 As shown, the integrated structure of an in-vehicle temperature sensor provided by this utility model includes: a crescent plate 1, an air duct 2, and a temperature sensor 3. The crescent plate 1 is installed inside the air intake housing 4 of the blower. The crescent plate 1 is used to disperse the high-speed zone inside the air intake housing 4 of the blower and to provide an installation point for the air duct 2. The air outlet of the air duct 2 is connected to the installation point of the crescent plate 1, and the air inlet of the air duct 2 is connected to the temperature sensor 3. The air duct 2 is used for the circulation of air inside the vehicle. The temperature sensor 3 is used to measure the temperature inside the vehicle.

[0020] When the blower is working, a negative pressure zone is formed inside the blower's air intake housing 4. The air pressure at the air outlet of the air duct 2 is lower than the air pressure at the air inlet of the air duct 2. The air inside the vehicle flows from the air inlet of the air duct 2 to the air outlet of the air duct 2, realizing the automatic airflow of the integrated structure of the in-vehicle temperature sensor. The temperature sensor 3 located at the air inlet of the air duct 2 receives the flowing air inside the vehicle, so that the temperature sensor 3 can measure the temperature of the air inside the vehicle.

[0021] By installing a crescent plate 1 inside the blower's intake housing 4, the crescent plate 1 disperses the high-speed zone within the intake housing 4, optimizing the flow field within the intake housing 4. It directly utilizes the existing blower to provide negative pressure, thereby achieving airflow into the vehicle. Air flows from the inlet to the outlet of the air duct 2. A temperature sensor installed at the inlet of the air duct 2 measures the temperature of the air drawn by the air duct 2. This integrated structure reduces the need for venturi tube assemblies, eliminating the need to design a series of venturi tube assemblies for airflow into the vehicle. This reduces the number of sub-parts required in traditional methods and eliminates the need to design venturi tubes of different sizes to connect temperature sensors with varying end diameters, thus reducing costs. Furthermore, the air that has passed through the temperature sensor 3 and the air duct 2, after being temperature-measured, enters the blower and is circulated by the vehicle's air conditioning system. This portion of temperature-measured air is not discharged into the environment; it is effectively utilized, reducing wasted air conditioning airflow and achieving energy savings. The integrated structure of this in-vehicle temperature sensor is simple, reliable, highly practical, and economical.

[0022] In one feasible implementation, the crescent plate 1 and the air intake housing 4 are injection molded as a single unit. When the air intake housing 4 is manufactured, the crescent plate 1 is injection molded together with the air intake housing 4. The crescent plate 1 does not require subsequent manufacturing and installation. The crescent plate 1 disperses the high-speed zone inside the air intake housing 4 of the blower and provides an installation point for the air duct 2.

[0023] In one feasible implementation, a connecting post 11 is provided on the crescent plate 1, and the air outlet of the air duct 2 is connected to the connecting post 11. The connecting post 11 on the crescent plate 1 provides an installation point for the air duct 2, and the air outlet of the air duct 2 can be directly inserted into the connecting post 11 to complete the installation.

[0024] Specifically, the connecting column 11 and the crescent plate 1 are injection molded as an integrated structure. When the crescent plate 1 is manufactured, the connecting column 11 is injection molded together with the crescent plate 1. The connecting column 11 does not need to be manufactured and installed later. The connecting column 11 provides the installation point for the air duct 2.

[0025] In one feasible implementation, the temperature sensor 3 is plugged into the air inlet of the air duct 2. During installation, the temperature sensor 3 is plugged into the air inlet of the air duct 2 to complete the connection between the temperature sensor 3 and the air duct 2. The plugging method is simple and reliable.

[0026] In one feasible implementation, the air duct 1 is a corrugated pipe, which suppresses vibration during ventilation and ensures the ventilation result.

[0027] This utility model also provides an automotive air conditioner that adopts the in-vehicle temperature sensor integrated structure described above.

[0028] This utility model also provides a car that uses the above-described car air conditioner.

[0029] Working principle: The integrated structure of the in-vehicle temperature sensor is installed. The crescent plate 1 and the air intake housing 4 of the blower are injection molded together, and the connecting post 11 is injection molded together with the crescent plate 1. First, the temperature sensor 3 is inserted into the air inlet of the bellows, and then the air outlet of the bellows is inserted into the connecting post 11 of the crescent plate 1. When the blower starts working, a negative pressure zone is formed inside the air intake housing 4 of the blower. The air pressure at the air outlet of the bellows inside the air intake housing 4 is lower than the air pressure at the air inlet of the bellows. The air inside the vehicle flows from the air inlet to the air outlet of the bellows. The temperature sensor 3, located at the air inlet of the bellows, receives the flowing air inside the vehicle and measures its temperature to obtain the in-vehicle temperature. The measured air then flows from the air inlet to the air outlet of the bellows and enters the blower, where the blower processes and utilizes the air inside the vehicle.

[0030] In the description of this application, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0031] The specific embodiments of this utility model have been described above. It should be understood that this utility model is not limited to the specific embodiments described above, and those skilled in the art can make various changes or modifications within the scope of the claims, which do not affect the substantive content of this utility model. Unless otherwise specified, the embodiments and features described in this application can be arbitrarily combined with each other.

Claims

1. An in-vehicle temperature sensor integrated structure characterized by comprising: include: Crescent plate (1), air duct (2), temperature sensor (3); The crescent plate (1) is installed inside the air intake housing (4) of the blower to disperse the high-speed zone inside the air intake housing (4) of the blower and to provide an installation point for the air duct (2); The air outlet of the air duct (2) is connected to the mounting point of the crescent plate (1), and the air inlet of the air duct (2) is connected to the temperature sensor (3). The air duct (2) is used for the circulation of air inside the vehicle. The temperature sensor (3) is used to measure the temperature inside the vehicle.

2. The in-vehicle temperature sensor integrated structure according to claim 1, wherein The crescent plate (1) and the air intake shell (4) are injection molded as a single integrated structure.

3. The integrated structure of the in-vehicle temperature sensor as described in claim 1, characterized in that, A connecting column (11) is provided on the crescent plate (1), and the air outlet of the air duct (2) is connected to the connecting column (11).

4. The in-vehicle temperature sensor integrated structure as described in claim 3, characterized in that, The connecting column (11) and the crescent plate (1) are injection molded as a single integrated structure.

5. The in-vehicle temperature sensor integrated structure as described in claim 1, characterized in that, The temperature sensor (3) is inserted into the air inlet of the air duct (2).

6. The integrated structure of the in-vehicle temperature sensor as described in claim 1, characterized in that, The air duct (2) is made of corrugated pipe.

7. An automotive air conditioner, characterized in that, The vehicle interior temperature sensor integrated structure according to any one of claims 1 to 6 is adopted.

8. A car, characterized in that, The automotive air conditioner described in claim 7 is used.

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