Vehicle thermal management system

Abstract

The utility model relates to the technical field of vehicle heat management, and particularly discloses a vehicle heat management system which comprises a heater, a controller and a sealing heat insulation pad. As most of the sections of the sealing and heat-insulating pads in the prior art are rectangular, the heat transfer area of the sealing and heat-insulating pad is smaller than that of the sealing and heat-insulating pad with the rectangular section, and the heat resistance is inversely proportional to the heat transfer area under the condition that the thickness and the heat conductivity coefficient are not changed according to the known common knowledge, so that the sealing and heat-insulating pads are not easy to deform. According to the utility model, the heat transfer area is reduced, so that the heat insulation effect of the sealing heat insulation pad is effectively improved, and a large amount of heat is prevented from being transferred to a controller to influence a system; due to the arrangement of the concave cavity structure, the elastic potential energy is large after the sealing heat insulation pad is pressed, the sealing heat insulation pad can spontaneously abut against the sealing face of the heater and the sealing face of the controller, and therefore the good sealing performance is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of vehicle thermal management, in particular to a vehicle thermal management system. Background Art

[0002] At present, in the vehicle thermal management system, to save the cost of the controller, reduce the occupied space and the total weight, some vehicles integrate the compressor and the heater system, and the two share a two-in-one controller, which is electrically connected to the compressor and the heater at the same time. Since the temperature on the heater side is usually high, in order to prevent too much heat on the heater side from being transferred to the compressor side and affecting the suction and exhaust temperatures of the compressor, a sealing and heat-insulating pad is usually arranged between the heater and the controller to minimize the heat conduction on the heater side and reduce the influence on the operation of the compressor. In the prior art, most of the sealing and heat-insulating pads have a large heat transfer area in the heat transfer direction, resulting in a poor heat insulation effect. Summary of the Utility Model

[0003] The purpose of the utility model is to provide a vehicle thermal management system to solve the problem of poor heat insulation effect of the sealing and heat-insulating pad in the vehicle thermal management system in the prior art.

[0004] The utility model provides a vehicle thermal management system, which includes a heater and a controller arranged at intervals along a set direction. The heater is arranged on the controller and is electrically connected to the controller. An annular sealing and heat-insulating pad is arranged between the heater and the controller. The sealing and heat-insulating pad has an annular cavity structure, and the center line of the cavity structure coincides with the center line of the sealing and heat-insulating pad and both are along the set direction.

[0005] As an optional technical solution of the vehicle thermal management system, there are multiple cavity structures, and the multiple cavity structures are distributed in sequence along the set direction.

[0006] As an optional technical solution of the vehicle thermal management system, the opening direction of the cavity structure is perpendicular to the set direction, and the opening directions of two adjacent cavity structures are the same or opposite.

[0007] As an optional technical solution of the vehicle thermal management system, the cross-sectional shape of the sealing and heat-insulating pad is C-shaped, S-shaped or wavy.

[0008] As an optional technical solution of the vehicle thermal management system, the opening direction of the cavity structure is arranged along the set direction.

[0009] As an optional technical solution of the vehicle thermal management system, the cross-sectional shape of the sealing and heat-insulating pad is Ω-shaped, U-shaped, V-shaped or W-shaped.

[0010] As an optional technical solution of the vehicle thermal management system, the sealing and heat-insulating pad has a first arc surface and a second arc surface arranged oppositely. The first arc surface abuts against the heater, and the second arc surface abuts against the controller.

[0011] As an alternative technical solution of the vehicle thermal management system, the sealing and heat insulation pad includes a metal skeleton and a plastic layer. The plastic layer wraps the outer surface of the metal skeleton, and both the heater and the controller are in contact with the plastic layer.

[0012] As an alternative technical solution of the vehicle thermal management system, the vehicle thermal management system further includes a fastener, and the heater is connected to the controller through the fastener.

[0013] As an alternative technical solution of the vehicle thermal management system, the vehicle thermal management system further includes a compressor disposed on the controller. The compressor is electrically connected to the controller. Along the set direction, the compressor and the heater are respectively located on both sides of the controller.

[0014] As an alternative technical solution of the vehicle thermal management system, the heater has a water inlet and a water outlet. The water inlet is used to communicate with the water outlet of the cooling water circulation system, and the water outlet is used to communicate with the water inlet of the cooling water circulation system. The compressor has a suction port and a discharge port. The suction port is used to suck in low-temperature refrigerant, and the discharge port is used to communicate with the vehicle air-conditioning system.

[0015] The beneficial effects of the present utility model are as follows:

[0016] The present utility model provides a vehicle thermal management system, which includes a heater, a controller and a sealing and heat insulation pad. Since most of the cross-sectional shapes of the sealing and heat insulation pads in the prior art are rectangular, the sealing and heat insulation pad designed by the present utility model has an annular cavity structure. Among them, the center line of the cavity structure coincides with the center line of the sealing and heat insulation pad and both are along the set direction. In this way, with the same thickness, the heat transfer area of the sealing and heat insulation pad of the present utility model is smaller than that of the sealing and heat insulation pad with a rectangular cross-sectional shape. It is known from common knowledge that, with the thickness and thermal conductivity unchanged, the thermal resistance is inversely proportional to the heat transfer area. Therefore, by reducing the heat transfer area, the present utility model effectively improves the heat insulation effect of the sealing and heat insulation pad, avoids a large amount of heat from being transmitted to the controller and affecting the system; and due to the setting of the cavity structure, the elastic potential energy of the sealing and heat insulation pad is relatively large after being compressed, and it can spontaneously abut against the sealing surfaces of the heater and the controller, so it also has good sealing performance. Description of the Drawings

[0017] Figure 1 It is a schematic structural diagram of the vehicle thermal management system in the embodiment of the present utility model;

[0018] Figure 2 It is a cross-sectional view of the sealing and heat insulation pad in the embodiment of the present utility model.

[0019] In the figure:

[0020] 1. Heater; 11. Water inlet; 12. Water outlet;

[0021] 2. Controller;

[0022] 3. Sealing and heat-insulating gasket; 31. Concave cavity structure; 32. First arc surface; 33. Second arc surface; 34. Metal skeleton; 35. Plastic layer;

[0023] 4. Compressor; 41. Suction port; 42. Discharge port. Specific implementation manners

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Apparently, the described embodiments are some but not all of the embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0025] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus cannot be understood as a limitation to the present utility model. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance. Among them, the terms "first position" and "second position" are two different positions. Moreover, the first feature being "above", "over" and "on" the second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature has a higher horizontal height than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly below and obliquely below the second feature, or simply indicating that the first feature has a lower horizontal height than the second feature.

[0026] In the description of the present utility model, it should be noted that unless otherwise clearly defined and limited, the terms "installed", "connected" and "connected to" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0027] Embodiments of the present utility model will be described in detail below. Examples of the embodiments are shown in the accompanying drawings, in which the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the accompanying drawings are exemplary and are only used to explain the present utility model and should not be construed as a limitation of the present utility model.

[0028] As Figures 1 to 2 shown, this embodiment provides a vehicle thermal management system, which includes a heater 1, a controller 2, and a sealed heat insulation pad 3. The sealed heat insulation pad 3 is arranged between the heater 1 and the controller 2. The sealed heat insulation pad 3 has an annular cavity structure 31, and the center line of the cavity structure 31 coincides with the center line of the sealed heat insulation pad 3 and both are along the set direction. Different from the situation where the cross-sectional shape of most sealed heat insulation pads 3 in the prior art is rectangular, with this setting method, the heat transfer area of the sealed heat insulation pad 3 of the present utility model is smaller than that of the sealed heat insulation pad 3 with a rectangular cross-sectional shape. It is common knowledge that, under the condition that the thickness and thermal conductivity remain unchanged, the thermal resistance is inversely proportional to the heat transfer area. Therefore, by the method of reducing the heat transfer area in the present utility model, the heat insulation effect of the sealed heat insulation pad 3 is effectively improved, avoiding a large amount of heat from being transferred to the controller and affecting the system. And due to the setting of the cavity structure 31, the elastic potential energy of the sealed heat insulation pad 3 is relatively large after being compressed, and it can spontaneously press against the sealing surfaces of the heater 1 and the controller 2, so it also has good sealing performance.

[0029] Among them, a plurality of cavity structures 31 can be arranged, and the plurality of cavity structures 31 can be distributed in sequence along the set direction. The heat transfer area of this setting method is also smaller than that of the sealed heat insulation pad 3 with a rectangular cross-sectional shape, thereby improving the heat insulation effect of the sealed heat insulation pad 3.

[0030] It should be noted that: the thermal resistance θ calculation formula is θ = L / (λS), where: λ is the thermal conductivity, L is the material thickness or length, and S is the heat transfer area. The ability of an object to impede heat conduction is proportional to the conduction path length, inversely proportional to the cross-sectional area passed through, and inversely proportional to the thermal conductivity of the material.

[0031] In an embodiment of the present utility model, the opening direction of the cavity structure 31 is perpendicular to the set direction, and the opening directions of two adjacent cavity structures 31 are opposite. With this setting, while ensuring the sealing effect of the sealed heat insulation pad 3, the heat transfer area of the sealed heat insulation pad 3 is reduced, making the thermal resistance of the sealed heat insulation pad 3 larger, thereby improving the heat insulation effect of the sealed heat insulation pad 3.

[0032] Alternatively, the opening directions of two adjacent cavity structures 31 are the same. With such a setting, the heat transfer area of the sealed heat insulation pad 3 can also be reduced, making the thermal resistance of the sealed heat insulation pad 3 larger, thereby improving the heat insulation effect of the sealed heat insulation pad 3.

[0033] Optionally, the inner wall of the cavity structure 31 is arc-shaped, which can increase the elastic potential energy after the sealing and heat-insulating gasket 3 is compressed, ensuring the sealing effect between the sealing and heat-insulating gasket 3 and the heater 1 and the controller 2.

[0034] Specifically, the cross-sectional shape of the sealing and heat-insulating gasket 3 includes but is not limited to C-shaped, S-shaped or wavy. The above three cross-sectional shapes can reduce the heat transfer area of the sealing and heat-insulating gasket 3 while ensuring the sealing effect, thereby improving the heat-insulating effect of the sealing and heat-insulating gasket 3.

[0035] In another embodiment of the present utility model, the opening direction of the cavity structure 31 is set along a set direction. Specifically, the cross-sectional shape of the sealing and heat-insulating gasket 3 is Ω-shaped, U-shaped, V-shaped or W-shaped. Compared with the heat transfer area of the sealing and heat-insulating gasket 3 with a rectangular cross-sectional shape, the above three setting methods can all reduce the heat transfer area of the sealing and heat-insulating gasket 3, effectively improving the heat-insulating effect of the sealing and heat-insulating gasket 3 and avoiding a large amount of heat from being transmitted to the controller and affecting the system.

[0036] Specifically, the sealing and heat-insulating gasket 3 has a first arc surface 32 and a second arc surface 33 arranged oppositely. The first arc surface 32 can be in contact with the heater 1; similarly, the second arc surface 33 can be in contact with the controller 2. With such a setting, during installation, the first arc surface 32 and the second arc surface 33 can play a guiding role, making it convenient to set the sealing and heat-insulating gasket 3 at the sealing surfaces of the heater 1 and the controller 2, and can further increase the elastic potential energy after the sealing and heat-insulating gasket 3 is compressed, ensuring the sealing effect between the sealing and heat-insulating gasket 3 and the heater 1 and the controller 2.

[0037] In this embodiment, the sealing and heat-insulating gasket 3 includes a metal skeleton 34 and a plastic layer 35. The plastic layer 35 can wrap the outer surface of the metal skeleton 34. Among them, the metal skeleton 34 can ensure the strength and stability of the sealing and heat-insulating gasket 3, and at the same time, the metal skeleton 34 can ensure the shielding of EMC (Electromagnetic Compatibility) and prevent electromagnetic interference of electronic components. The externally covered plastic layer 35 can ensure the functions of heat insulation and sealing. Among them, the plastic layer 35 includes but is not limited to a rubber layer, aiming to ensure the functions of heat insulation and sealing.

[0038] Specifically, the vehicle thermal management system further includes fasteners, and the heater 1 is connected to the controller 2 through the fasteners. With such a setting, it is convenient for the installation and disassembly between the heater 1 and the controller 2, and at the same time, it is also convenient to replace the sealing and heat-insulating gasket 3. At the same time, it can also prevent water mist or oil mist in the space where the controller 2 is located from invading the inside of the controller 2 and causing internal component failures.

[0039] In this embodiment, the vehicle thermal management system also includes a compressor 4 disposed on the controller 2. Along the set direction, the compressor 4 and the heater 1 are respectively located on both sides of the controller 2, and the compressor 4 and the controller 2 are electrically connected. The controller 2 is a two-in-one controller, so that the heater 1 and the compressor 4 can be electrically connected at the same time. This arrangement is mainly to save space in the vehicle, reduce the total weight, and improve the integration of the thermal management system. Some vehicle designs integrate the compressor 4 and the heater 1 together, and are respectively disposed on both sides of the two-in-one controller. The two-in-one controller is electrically connected to the compressor 4 and the heater 1, respectively, to control the compressor 4 to compress the refrigerant for a refrigeration cycle, and to control the heater 1 to heat the cooling water to heat the battery compartment or the passenger compartment and other environments.

[0040] The heater 1 has a water inlet 11 and a water outlet 12, and the compressor 4 has an air intake 41 and an air outlet 42. The low-temperature refrigerant enters the compressor 4 from the air intake 41 at the bottom of the compressor 4, and becomes a high-temperature and high-pressure refrigerant after being compressed by the compressor 4, and is discharged into the system from the air outlet 42. A cooling water flow channel is provided inside the heater 1, and the two ends of the cooling water flow channel are respectively connected to the water inlet 11 and the water outlet 12, and are connected to the cooling water circulation system through the water inlet 11 and the water outlet 12. The heater 1 heats the cooling water flowing into the flow channel.

[0041] The controller 2 can control the compressor 4 to work alone to realize the refrigeration cycle; can control the heater 1 to work alone to realize the heating function; or can control the compressor 4 and the heater 1 to work at the same time to perform heating and refrigeration cycles at the same time.

[0042] The advantages of the vehicle thermal management system provided by the utility model are as follows: This solution can ensure sufficient sealing effect under the premise of reducing the heat transfer area and increasing thermal resistance. Preferably, the cross-sectional shape of the sealing and thermal insulation pad 3 of this solution is C-shaped, and the interior of the C-shaped sealing and thermal insulation pad 3 is a C-shaped steel plate, and the outside of the steel plate is covered with a rubber layer. In the case of a C-shaped cross-section, the heat transfer area is effectively reduced and the thermal insulation capacity of the gasket is increased; at the same time, the elastic potential energy of the C-shaped steel plate is large after being compressed, and it can spontaneously press against the sealing surfaces on both sides, so it also has good sealing performance. The internal arrangement of the steel plate can also achieve effective shielding of EMC. In addition, for gaskets with cross-sectional shapes that can be easily associated with C-shaped cross-sections, S-shaped cross-sections, З-shaped cross-sections, Ω-shaped cross-sections, etc., a smaller heat transfer area can be used to increase thermal resistance and achieve sealing function.

[0043] Obviously, the above embodiments of the present utility model are merely examples for clearly illustrating the present utility model, rather than limitations on the implementation manners of the present utility model. For those of ordinary skill in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to enumerate all implementation manners here. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the claims of the present utility model.

Claims

1. A vehicle thermal management system, comprising a heater (1) and a controller (2) arranged at intervals along a set direction, the heater (1) being arranged on the controller (2) and electrically connected to the controller (2), characterized in that, Comprising: An annular sealing and heat insulating gasket (3) is arranged between the heater (1) and the controller (2). The sealing and heat insulating gasket (3) has an annular cavity structure (31), and the center line of the cavity structure (31) coincides with the center line of the sealing and heat insulating gasket (3) and both are along the set direction.

2. The vehicle thermal management system according to claim 1, wherein, There are a plurality of the cavity structures (31), and the plurality of cavity structures (31) are sequentially distributed along the set direction.

3. The vehicle thermal management system according to claim 2, wherein The opening direction of the cavity structure (31) is perpendicular to the set direction, and the opening directions of two adjacent cavity structures (31) are the same or opposite.

4. The vehicle thermal management system according to claim 2, wherein The cross-sectional shape of the sealing and heat insulating gasket (3) is C-shaped, S-shaped or wavy.

5. The vehicle thermal management system according to claim 1, characterized in that, The opening direction of the cavity structure (31) is arranged along the set direction.

6. The vehicle thermal management system according to claim 5, wherein The cross-sectional shape of the sealing and heat insulating gasket (3) is Ω-shaped, U-shaped, V-shaped or W-shaped.

7. The vehicle thermal management system according to claim 1, wherein The sealing and heat insulating gasket (3) has a first arc surface (32) and a second arc surface (33) arranged oppositely. The first arc surface (32) abuts against the heater (1), and the second arc surface (33) abuts against the controller (2).

8. The vehicle thermal management system according to any one of claims 1-7, characterized in that, The sealing and heat insulating gasket (3) includes a metal skeleton (34) and a plastic layer (35). The plastic layer (35) wraps the outer surface of the metal skeleton (34), and both the heater (1) and the controller (2) abut against the plastic layer (35).

9. The vehicle thermal management system according to any one of claims 1-7, characterized in that The vehicle thermal management system further includes fasteners, and the heater (1) is connected to the controller (2) through the fasteners.

10. The vehicle thermal management system according to any one of claims 1-7, characterized in that, The vehicle thermal management system further includes a compressor (4) arranged on the controller (2). The compressor (4) is electrically connected to the controller (2). Along the set direction, the compressor (4) and the heater (1) are respectively located on both sides of the controller (2).

11. The vehicle thermal management system according to claim 10, characterized in that, The heater (1) has a water inlet (11) and a water outlet (12). The water inlet (11) is used to communicate with the water outlet of the cooling water circulation system, and the water outlet (12) is used to communicate with the water inlet of the cooling water circulation system. The compressor (4) has a suction port (41) and an exhaust port (42). The suction port (41) is used to suck in low-temperature refrigerant, and the exhaust port (42) is used to communicate with the vehicle air-conditioning system.

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