Vehicle-mounted thermistor and electric air conditioner compressor integrated assembly and vehicle

Abstract

The utility model provides a vehicle-mounted thermistor and electric air conditioner compressor integrated assembly. The integrated assembly comprises a thermistor PTC body, an electric air conditioner compressor body, an outer shell, a power supply interface, a power supply unit and a fixing assembly. The PTC body and the electric air conditioner compressor body are integrally installed in the outer shell, and the PTC body and the electric air conditioner compressor share the same power supply interface. A first branch of the power supply unit is electrically connected with the PTC body, and a second branch of the power supply unit is connected in parallel with the PTC body and the electric air conditioner compressor body through a power supply interface; the fixing assembly is mechanically connected with the outer shell. When the PTC and the electric air-conditioning compressor are respectively installed, the outer shell and the power supply system need to be respectively designed and installed according to two devices, so that through the design of the integrated assembly, the PTC and the electric air-conditioning compressor are integrated together through the same outer shell, the same power supply interface, the same power supply unit and the same fixing assembly and then are installed; and the design and development cost and the material cost during installation are saved.

Description

Technical Field

[0001] The utility model relates to the technical field of vehicles, in particular to an integrated assembly of a vehicle-mounted thermistor and an electric air-conditioning compressor and a vehicle. Background Art

[0002] In order to improve the comfort of the drivers and passengers in the vehicle, the vehicle interior environment is often heated or cooled by the vehicle air conditioner to make the temperature of the vehicle interior environment suitable.

[0003] Currently, the air conditioning heating function in vehicles mostly uses thermistors (Positive Temperature Coefficient, PTC) to heat the heat transfer medium, such as air and water, to achieve heating of the vehicle interior environment; while the air conditioning cooling function is mostly achieved through electric air conditioning compressors.

[0004] However, currently PTC and electric air-conditioning compressors are mostly developed independently and installed separately in vehicles. Their signal transmission, shell packaging and fixing brackets all need to be designed and installed separately, which increases material costs and takes up space for other vehicle systems. Utility Model Content

[0005] The technical problem solved by the utility model is to provide an integrated assembly of a vehicle-mounted thermistor and an electric air-conditioning compressor and a vehicle, thereby reducing the installation material cost of the vehicle-mounted thermistor and the electric air-conditioning compressor.

[0006] To this end, the technical solution of the utility model to solve the technical problem is:

[0007] The utility model provides an integrated assembly of a vehicle-mounted thermistor and an electric air-conditioning compressor, the integrated assembly comprising:

[0008] Thermistor PTC body, electric air conditioner compressor body, outer shell, power supply interface, power supply unit and fixing components;

[0009] The PTC body and the electric air conditioner compressor body are integrally installed in the outer shell, and the PTC body and the electric air conditioner compressor share the same power supply interface;

[0010] The first branch of the power supply unit is electrically connected to the PTC body, and the second branch of the power supply unit is connected in parallel to the PTC body and the electric air conditioner compressor body through a power supply interface;

[0011] The fixing assembly is mechanically connected to the outer shell.

[0012] Optionally, the outer shell is composed of a first end shell of the PTC body and a second end shell of the electric air-conditioning compressor connected via an adapter bracket.

[0013] Optionally, the PTC body includes a plurality of electric heating plates;

[0014] The plurality of electric heating plates are arranged according to the shape of the second end shell and are electrically connected to each other;

[0015] The plurality of electric heating plates are electrically connected to the second branch via a power supply interface.

[0016] Optionally, the integrated assembly further includes a grounding component;

[0017] One end of the grounding component is connected to the outer shell, and the other end is connected to the grounding terminal of the vehicle, so that the outer shell is grounded.

[0018] Optionally, the power supply unit includes a main power supply, the first branch includes an insulated gate bipolar transistor IGBT, and the second branch includes an inverter; the output end of the main power supply is respectively connected to the input end of the IGBT and the input end of the inverter;

[0019] The first branch of the power supply unit is electrically connected to the PTC body, and the second branch of the power supply unit is connected in parallel to the PTC body and the electric air conditioner compressor body through a power supply interface, including:

[0020] The output end of the IGBT is electrically connected to the PTC body, and the output end of the inverter is connected in parallel to the PTC body and the electric air-conditioner compressor body through a power supply interface.

[0021] Optionally, the fixing assembly includes a fixing bracket having a plurality of fixing points matching the first end shell.

[0022] Optionally, the integrated assembly further includes a main control unit, a signal unit and a signal interface;

[0023] The input end of the main control unit is connected to the signal unit through the signal interface, and the output end of the main control unit is connected to the power supply unit;

[0024] The power supply unit is electrically connected to the first branch of the power supply unit.

[0025] Optionally, the power supply interface and the signal interface are integrated on the same power supply terminal.

[0026] Optionally, an insulating component is provided between the outer shell and the power supply unit.

[0027] The utility model also provides a vehicle, the vehicle comprises the above-mentioned integrated assembly, and the integrated assembly is fixedly connected to the vehicle via a fixing component.

[0028] Through the above technical solution, it can be seen that the utility model has the following beneficial effects:

[0029] The utility model provides an integrated assembly of a vehicle-mounted thermistor and an electric air-conditioning compressor, the integrated assembly comprising: a thermistor PTC body, an electric air-conditioning compressor body, an outer shell, a power supply interface, a power supply unit and a fixed component; the PTC body and the electric air-conditioning compressor body are integrated and installed in the outer shell, and the PTC body and the electric air-conditioning compressor share the same power supply interface; the first branch of the power supply unit is electrically connected to the PTC body, and the second branch of the power supply unit is connected in parallel to the PTC body and the electric air-conditioning compressor body through the power supply interface; the fixed component is mechanically connected to the outer shell. Since the outer shell and the power supply system need to be designed and installed separately according to the two devices when the PTC and the electric air-conditioning compressor are installed separately, the above-mentioned integrated assembly design allows the PTC and the electric air-conditioning compressor to be integrated together through the same outer shell, power supply interface, power supply unit and fixed component for installation, saving design and development costs and material costs during installation. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0031] Figure 1 A schematic diagram of the structure of an electric air-conditioning compressor provided by an embodiment of the utility model;

[0032] Figure 2 A schematic diagram of a PTC structure provided by an embodiment of the utility model;

[0033] Figure 3 A schematic diagram of the structure of an integrated assembly of a vehicle-mounted PTC and an electric air-conditioning compressor provided in an embodiment of the utility model. DETAILED DESCRIPTION

[0034] In order to provide an implementation scheme provided by the utility model, an embodiment of the utility model provides an integrated assembly of a vehicle-mounted PTC and an electric air-conditioning compressor. The preferred embodiments of the utility model are described below in conjunction with the drawings of the specification.

[0035] Positive Temperature Coefficient (PTC) thermistors are semiconductor materials with a large positive temperature coefficient. Because their resistance increases with increasing temperature, they are often used as heating elements. Because their temperature coefficient is a large positive value, current flows more easily through the PTC at low temperatures than at high temperatures. Due to the PTC effect, as the temperature rises, the current conductivity and power output of the PTC decrease until a state of equilibrium is reached.

[0036] Electric air conditioning compressor, also known as electric air compressor or air compressor, can be divided into two categories according to its operating principle: volumetric compressor and gas-powered compressor. It is a machine that compresses gas and increases gas pressure through electricity. It completes energy conversion by compressing refrigerant and transfers heat from low temperature to high temperature to achieve cooling in a limited space.

[0037] By installing the PTC and the electric air compressor in the vehicle, the temperature inside the vehicle can be adjusted to improve the driving comfort of the drivers and passengers.

[0038] The design, development and actual vehicle installation of traditional PTC and electric air-conditioning compressors are independent processes. For example, both PTC and electric air-conditioning compressors need to develop components such as high-voltage power supply, low-voltage signal transmission, high-low voltage control and part end cover packaging. However, in the state of independent process development, these components need to be designed and developed separately according to the operating parameters of PTC and electric air-conditioning compressors. In actual manufacturing and actual vehicle installation, PTC and electric air-conditioning compressors also need to be manufactured and installed separately, and corresponding manufacturing costs and installation costs need to be paid separately.

[0039] Therefore, in order to reduce the design, manufacturing and installation costs of PTC and electric air compressor, the utility model provides an integrated assembly of vehicle-mounted PTC and electric air compressor. By integrating PTC and electric air compressor, PTC and electric air compressor share some components, which reduces the material usage of these components during design and manufacturing. Therefore, during installation, there is no need to install PTC and electric air compressor separately, but only the integrated assembly needs to be installed on the vehicle, saving installation costs.

[0040] Next, the integrated assembly provided by the embodiment of the utility model will be introduced in conjunction with the accompanying drawings.

[0041] See also Figure 1 and Figure 2 , Figure 1 A schematic diagram of the structure of an electric air-conditioning compressor provided by an embodiment of the utility model is shown in FIG. Figure 2 A schematic diagram of a PTC structure provided in an embodiment of the utility model.

[0042] Among them, the PTC structure includes a PTC controller 201, a PTC body 202 and a PTC bracket 203, and the structure of the electric air-conditioning compressor includes an air compressor body 101, an air compressor controller 102 and an air compressor bracket 103. As far as the PTC and the electric air-conditioning compressor installed on the same model of automobile are concerned, the high voltage and low voltage required by the two are consistent, and at the same time, the selection dimensions of the two are also similar on the end face. For example, in a certain model of vehicle, the end face dimensions of the PTC and the electric air-conditioning compressor are both 20,000 square millimeters. At this time, the PTC end face is designed to be rectangular, and the electric air-conditioning compressor is designed to be key-shaped.

[0043] In the process of realizing the PTC heating function, the control logic for high and low voltage control is relatively simple. The PTC heating temperature can be controlled by controlling the number of electric heating plates that are turned on in the PTC body. In some possible implementation methods, the electric heating plates can be controlled to be turned on or off by controlling the logic on and logic off of the control circuit to heat the vehicle's passenger compartment.

[0044] At the same time, since the electric air-conditioning compressor needs to control the motor that compresses the gas, the control logic is relatively complex. It is not only necessary to control the on and off of the motor to realize the operation of the electric air-conditioning compressor, but also to realize the rapid start, rapid shutdown, overvoltage protection and speed control of the electric air-conditioning compressor (also referred to as electric air compressor or air compressor) and many other complex functions to achieve the cooling of the vehicle passenger compartment. Therefore, the power supply circuit for controlling the electric air compressor is much more complex than that for controlling the PTC, that is, the circuit for controlling the electric air compressor has sufficient redundant computing power to support the control of the PTC.

[0045] Therefore, in some possible implementations, the high-voltage power supply of the electric air compressor can be connected in parallel to the PTC power supply terminal, and an insulated gate bipolar transistor (IGBT) can be connected in parallel to the PTC through the power supply terminal of the electric air compressor, so that the PTC can be controlled by the control circuit of the electric air compressor.

[0046] See also Figure 3 , Figure 3 A schematic diagram of the structure of an integrated assembly of a vehicle-mounted PTC and an electric air-conditioning compressor provided in an embodiment of the utility model.

[0047] Combination Figure 1 and Figure 2 It can be seen that Figure 3 The vehicle-mounted PTC and electric air-conditioning compressor integrated assembly shown is Figure 1 The electric air conditioning compressor shown is Figure 2 The PTC combinations shown were obtained.

[0048] The splicing of the shell can be done by connecting the PTC and the end shell of the air conditioner compressor through an adapter bracket, or by redesigning the arrangement of the PTC electric heating sheet and making the shape of the PTC electric heating sheet consistent with the air conditioner compressor, thereby achieving a compact design. The PTC controller 201 and the air compressor controller 102 can be set in an integrated assembly in an integrated manner, for example Figure 3 The air compressor and PTC integrated controller 301. The PTC bracket 203 and the air compressor bracket 103 can be arranged in an integrated assembly in an integrated manner, for example Figure 3 The air compressor and PTC integrated bracket 302. In some possible implementations, the grounding point can share the original grounding design of the electric air-conditioning compressor or PTC; at this time, after the integrated design of the PTC and the electric air-conditioning compressor is completed, the brackets of the two can also be expanded based on the bracket of the electric air-conditioning compressor to meet the two functions of decoupling the electric air-conditioning compressor and fixing the PTC.

[0049] The present application also provides a vehicle, which adopts the integrated assembly of a vehicle-mounted thermistor PTC and an electric air-conditioning compressor as described in any one of the above embodiments, and the integrated assembly is fixed to the vehicle through a fixing component.

[0050] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. An integrated assembly of a vehicle-mounted thermistor and an electric air-conditioning compressor, characterized in that: The integrated assembly comprises: Thermistor PTC body, electric air conditioner compressor body, outer shell, power supply interface, power supply unit and fixing components; The PTC body and the electric air conditioner compressor body are integrally installed in the outer shell, and the PTC body and the electric air conditioner compressor share the same power supply interface; The first branch of the power supply unit is electrically connected to the PTC body, and the second branch of the power supply unit is connected in parallel to the PTC body and the electric air conditioner compressor body through a power supply interface; The fixing assembly is mechanically connected to the outer shell.

2. The integrated assembly according to claim 1, characterized in that: The outer shell is composed of a first end shell of the PTC body and a second end shell of the electric air-conditioning compressor connected by a transfer bracket.

3. The integrated assembly according to claim 2, characterized in that: The PTC body includes a plurality of electric heating plates; The plurality of electric heating plates are arranged according to the shape of the second end shell and are electrically connected to each other; The plurality of electric heating plates are electrically connected to the second branch via a power supply interface.

4. The integrated assembly according to claim 1, characterized in that: The integrated assembly also includes a grounding component; One end of the grounding component is connected to the outer shell, and the other end is connected to the grounding terminal of the vehicle, so that the outer shell is grounded.

5. The integrated assembly according to claim 1, characterized in that: The power supply unit includes a main power supply, the first branch includes an insulated gate bipolar transistor IGBT, and the second branch includes an inverter; the output end of the main power supply is connected to the input end of the IGBT and the input end of the inverter respectively; The first branch of the power supply unit is electrically connected to the PTC body, and the second branch of the power supply unit is connected in parallel to the PTC body and the electric air conditioner compressor body through a power supply interface, including: The output end of the IGBT is electrically connected to the PTC body, and the output end of the inverter is connected in parallel to the PTC body and the electric air-conditioner compressor body through a power supply interface.

6. The integrated assembly according to claim 2, characterized in that: The fixing assembly includes a fixing bracket having a plurality of fixing points matching with the first end shell.

7. The integrated assembly according to claim 1, characterized in that: The integrated assembly also includes a main control unit, a signal unit and a signal interface; The input end of the main control unit is connected to the signal unit through the signal interface, and the output end of the main control unit is connected to the power supply unit; The power supply unit is electrically connected to the first branch of the power supply unit.

8. The integrated assembly according to claim 7, characterized in that: The power supply interface and the signal interface are integrated on the same power supply terminal.

9. The integrated assembly according to claim 1, characterized in that: An insulating component is provided between the outer shell and the power supply unit.

10. A vehicle, characterized in that: The vehicle comprises the integrated assembly as claimed in any one of claims 1 to 9, and the integrated assembly is fixed to the vehicle via a fixing component.

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