Built-in independent heat management unit

Abstract

The utility model discloses a built-in independent heat management unit which comprises a case, a condenser, a plate heat exchanger, a compressor and an expansion valve, and the condenser, the plate heat exchanger, the compressor and the expansion valve are arranged in the case. The plate heat exchanger is provided with a water outlet, a water inlet, a liquid outlet and a liquid inlet, the water outlet is provided with a water outlet pipe, the water inlet is provided with a water inlet pipe, and the water outlet pipe and the water inlet pipe both extend out of the case; a first liquid outlet pipe is mounted on the liquid outlet and connected with an expansion valve, an air return pipe is mounted on the expansion valve and connected with the compressor, a liquid inlet pipe is mounted on the liquid inlet and connected with the expansion valve, a second liquid outlet pipe is mounted on the expansion valve, and the first liquid outlet pipe is connected with the condenser; the device can be installed at any position in a vehicle body, reasonably utilizes the space of a chassis of the vehicle body, and is suitable for most new energy vehicles. Meanwhile, the water outlet pipe and the water inlet pipe extend out of the case, external pipe connection is facilitated, personnel do not need to climb the roof, and the installation hidden danger of personnel roof operation is avoided.

Description

Technical Field

[0001] The utility model relates to a built-in independent thermal management unit. Background Art

[0002] Currently, new energy vehicles on the market are powered by batteries, which primarily provide the vehicle's power. However, during battery use, such as discharging and charging, battery temperatures rise, charging times increase, and battery life decreases. Therefore, new energy vehicles are currently equipped with a standalone battery thermal management unit (BTM), connected to the battery pack's cooling water tank via a pipe. The BTM cools the cooling water to protect the battery. Previously, new energy buses mounted the battery pack at the rear of the vehicle, with the roof-mounted BTM unit installed on the roof. This resulted in a high chassis, making it difficult for passengers to board and alight. Currently, vehicle manufacturers are designing low-slung vehicles with the battery pack mounted on the roof, resolving this issue. However, roof space is limited, requiring air conditioning and the battery pack, leaving no room for a BTM unit. This makes battery cooling difficult. Furthermore, new energy vehicles for other purposes, such as logistics vehicles, have limited roof space, making it difficult to install a BTM unit. Utility Model Content

[0003] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, an embodiment of the present invention proposes a built-in independent thermal management unit, comprising a chassis, a condenser, a plate heat exchanger, a compressor, and an expansion valve, wherein the chassis is equipped with the condenser, the plate heat exchanger, the compressor, and the expansion valve; the plate heat exchanger is provided with a water outlet, a water inlet, a liquid outlet, and a liquid inlet, the water outlet is provided with a water outlet pipe, the water inlet is provided with a water inlet pipe, and the water outlet pipe and the water inlet pipe both extend outside the chassis; the liquid outlet is provided with a first liquid outlet pipe, the first liquid outlet pipe is connected to the expansion valve, the expansion valve is provided with an air return pipe, the air return pipe is connected to the compressor, the liquid inlet is provided with a liquid inlet pipe, the liquid inlet is connected to the expansion valve, the expansion valve is provided with a second liquid outlet pipe, the second liquid outlet pipe is connected to the condenser.

[0004] According to some embodiments of the present invention, a water pump is further included, wherein the inlet of the water pump is connected to the water inlet pipe, and the outlet of the water pump is connected to the water inlet via a connecting pipe.

[0005] According to some embodiments of the present invention, the compressor is fixedly mounted on the bracket, and the bracket is provided with a side panel; the base is provided below the side panel, and a vertical pole is provided on the base, and the vertical pole passes through the side panel, and a shock-absorbing lower pad and a shock-absorbing upper pad are mounted on the vertical pole, the shock-absorbing lower pad is located between the side panel and the base, and the shock-absorbing upper pad is located above the side panel.

[0006] According to some embodiments of the present invention, a convex portion is provided on the shock-absorbing lower pad, and the convex portion passes through the side plate, and a groove is provided on the shock-absorbing upper pad, and the convex portion is accommodated in the groove.

[0007] According to some embodiments of the present invention, a filling pipe is installed on the compressor, a filling port is opened on the chassis, and the filling pipe extends out from the filling port.

[0008] According to some embodiments of the present invention, two wiring harness openings are opened on the chassis, and the two wiring harness openings are used to pass the control wiring harness.

[0009] The built-in independent thermal management unit of the utility model has a small and simple appearance and can be installed at any position inside the vehicle body, such as the rear of the vehicle body chassis, the skirt of the vehicle body chassis, etc., which rationally utilizes the space of the vehicle body chassis and is commonly used in most new energy vehicles on the market; at the same time, the water outlet pipe and the water inlet pipe extend out of the chassis, which is convenient for external pipe connection, simple operation, and easy maintenance. There is no need for personnel to climb on the roof, avoiding the installation hazards of personnel operating on the roof; at the same time, the chassis adopts a sheet metal structure design, and the structure is firm.

[0010] Additional aspects and advantages of the present invention will be given in part in the following description and will become apparent from the following description or learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0012] Figure 1 This is an overall schematic diagram of an embodiment of the utility model Figure 1 ;

[0013] Figure 2 This is an overall schematic diagram of an embodiment of the utility model Figure 2 ;

[0014] Figure 3 This is an overall schematic diagram of an embodiment of the utility model Figure 3 ;

[0015] Figure 4 It is an overall cross-sectional schematic diagram of an embodiment of the present utility model. DETAILED DESCRIPTION

[0016] The following describes embodiments of the present invention in detail. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended only to explain the present invention and are not to be construed as limiting the present invention.

[0017] In the description of the present invention, it should be understood that descriptions involving orientations, such as up, down, front, back, left, right, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as limitations on the present invention.

[0018] In the description of this utility model, "means more than two, and "greater than," "less than," "exceeds," etc. are understood to exclude the number itself. The use of "first" or "second" is solely for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of the indicated technical features, or implicitly indicating the order of the indicated technical features.

[0019] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, and connecting should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0020] Reference Figures 1 to 3 A built-in independent thermal management unit includes a chassis 100, a condenser 200, a plate heat exchanger 300, a compressor 400, and an expansion valve 500. The condenser 200, the plate heat exchanger 300, the compressor 400, and the expansion valve 500 are installed in the chassis 100; the plate heat exchanger 300 is provided with a water outlet 310, a water inlet 320, a liquid outlet 330, and a liquid inlet 340, the water outlet 310 is provided with a water outlet pipe 600, and the water inlet 320 is provided with a water inlet pipe 700, the water outlet pipe 600 and the water inlet pipe 700 both extend out of the chassis 100, the water outlet pipe 600, the water inlet pipe 700 and the cooling water tank of the battery pack form a circulation path, so that the cooling water absorbs heat in the cooling water tank, enters the plate heat exchanger 300 and exchanges heat with the refrigerant, and then enters the cooling water tank, and the cycle is repeated.

[0021] A first liquid outlet pipe 810 is installed on the liquid outlet 330, and the first liquid outlet pipe 810 is connected to the expansion valve 500. After completing heat exchange in the plate heat exchanger 300, the refrigerant enters the expansion valve 500 through the first liquid outlet pipe 810; the expansion valve 500 works by switching the path so that the refrigerant returns to the compressor 400 through the return air pipe 900 installed on the expansion valve 500.

[0022] The expansion valve 500 is equipped with a second liquid outlet pipe 1000, which is connected to the condenser 200. After the refrigerant is cooled in the condenser 200, it enters the expansion valve 500 through the second liquid outlet pipe 1000. The expansion valve 500 switches the path so that the refrigerant enters the plate heat exchanger 300 from the liquid inlet 340 through the liquid inlet pipe 820, so that the refrigerant exchanges heat with the cooling water in the plate heat exchanger 300.

[0023] The built-in independent thermal management unit of the present invention is compact and simple in appearance and can be installed at any position inside the vehicle body, such as the rear of the vehicle body chassis, the skirt of the vehicle body chassis, etc., which rationally utilizes the space of the vehicle body chassis and is commonly used in most new energy vehicles on the market; at the same time, the water outlet pipe 600 and the water inlet pipe 700 extend out of the chassis 100, which is convenient for external pipe connection, simple operation, and easy maintenance. There is no need for personnel to climb on the roof, avoiding the installation hidden dangers of personnel operating on the roof; at the same time, the chassis 100 adopts a sheet metal structure design, and the structure is firm.

[0024] Reference Figure 1 In order to increase the water circulation speed, a water pump 2000 is also provided. The inlet of the water pump 2000 is connected to the water inlet pipe 700, and the outlet of the water pump 2000 is connected to the water inlet 320 through a connecting pipe 3000.

[0025] Reference Figure 4 The compressor 400 is fixedly installed on the bracket 4000, and the bracket 4000 is provided with a side panel 4100; a base 5000 is provided under the side panel 4100, and a vertical pole 5100 is provided on the base 5000. The vertical pole 5100 passes through the side panel 4100, and a shock-absorbing lower pad 6000 and a shock-absorbing upper pad 7000 are mounted on the vertical pole 5100. The shock-absorbing lower pad 6000 is located between the side panel 4100 and the base 5000, and the shock-absorbing upper pad 7000 is located above the side panel 4100 to reduce the vibration generated by the compressor 400 during operation.

[0026] Specifically, the shock-absorbing lower pad 6000 is provided with a convex portion 6100, which passes through the side plate 4100, and the shock-absorbing upper pad 7000 is provided with a groove 7100, which accommodates the convex portion 6100 to ensure a tight connection between the shock-absorbing upper pad 7000 and the shock-absorbing lower pad 6000.

[0027] Reference Figure 1A filling pipe 410 is installed on the compressor 400, and a filling port 110 is opened on the chassis 100. The filling pipe 410 extends from the filling port 110 to facilitate the filling of the refrigerant.

[0028] A control board is mounted on the compressor 400. To facilitate the wiring harness on the control board to pass through the chassis 100, two wiring harness openings 120 are opened on the chassis 100. The two wiring harness openings 120 are used to pass the control wiring harness.

[0029] In this specification, references to the terms "some embodiments" or "it is contemplated that" indicate that a specific feature, structure, material, or characteristic described in conjunction with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0030] The embodiments of the present invention are described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Various changes can be made within the scope of knowledge possessed by ordinary technicians in the relevant technical field without departing from the purpose of the present invention.

Claims

1. A built-in independent thermal management unit, characterized in that: The invention comprises a chassis (100), a condenser (200), a plate heat exchanger (300), a compressor (400), and an expansion valve (500); the chassis (100) is equipped with the condenser (200), the plate heat exchanger (300), the compressor (400), and the expansion valve (500); the plate heat exchanger (300) is provided with a water outlet (310), a water inlet (320), a liquid outlet (330), and a liquid inlet (340); the water outlet (310) is equipped with a water outlet pipe (600), the water inlet (320) is equipped with a water inlet pipe (700), and the water outlet pipe (600) and the water inlet pipe (700) both extend outside the chassis (100); The liquid outlet (330) is provided with a first liquid outlet pipe (810), the first liquid outlet pipe (810) is connected to the expansion valve (500), the expansion valve (500) is provided with a return air pipe (900), the return air pipe (900) is connected to the compressor (400), the liquid inlet (340) is provided with a liquid inlet pipe (820), the liquid inlet pipe (820) is connected to the expansion valve (500), the expansion valve (500) is provided with a second liquid outlet pipe (1000), the second liquid outlet pipe (1000) is connected to the condenser (200).

2. The built-in independent thermal management unit according to claim 1, characterized in that: It also includes a water pump (2000), the inlet of the water pump (2000) is connected to the water inlet pipe (700), and the outlet of the water pump (2000) is connected to the water inlet (320) via a connecting pipe (3000).

3. The built-in independent thermal management unit according to claim 1, characterized in that: The invention also includes a bracket (4000) and a base (5000), wherein the compressor (400) is fixedly mounted on the bracket (4000), and the bracket (4000) is provided with a side panel (4100); the base (5000) is provided below the side panel (4100), and a vertical rod (5100) is provided on the base (5000), wherein the vertical rod (5100) passes through the side panel (4100), and a shock-absorbing lower pad (6000) and a shock-absorbing upper pad (7000) are sleeved on the vertical rod (5100), wherein the shock-absorbing lower pad (6000) is located between the side panel (4100) and the base (5000), and the shock-absorbing upper pad (7000) is located above the side panel (4100).

4. The built-in independent thermal management unit according to claim 3, characterized in that: The shock-absorbing lower pad (6000) is provided with a convex portion (6100), the convex portion (6100) passing through the side plate (4100), and the shock-absorbing upper pad (7000) is provided with a groove (7100), the groove (7100) accommodating the convex portion (6100).

5. The built-in independent thermal management unit according to claim 1, characterized in that: The compressor (400) is provided with a filling pipe (410), the case (100) is provided with a filling port (110), and the filling pipe (410) extends from the filling port (110).

6. The built-in independent thermal management unit according to claim 1, characterized in that: The chassis (100) is provided with two harness openings (120), and the two harness openings (120) are used for passing a control harness.

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