Evaluation method, system and equipment based on battery cooler placement

Abstract

The present invention provides a battery cooler placement evaluation method, system, and device. The method comprises: obtaining the heat exchange performance value of the battery cooler under different placement configurations and obtaining the corresponding directional influence factors and refrigerant flow dimensions for different directional relationships; determining the corresponding size influence factors based on the heat exchange performance value, refrigerant flow dimensions, and directional influence factors; and predicting the heat exchange performance of the battery cooler under different placement configurations based on the directional influence factors, refrigerant flow dimensions, and size influence factors. The present invention solves the problem that prior battery cooler performance testing methods are expensive and cannot predict heat exchange performance under different placement configurations.

Description

Technical Field

[0001] The present invention relates to the field of heat exchange performance of vehicle battery coolers, and in particular to an evaluation method, system and device based on the placement of a battery cooler. Background Art

[0002] The placement of battery coolers for new energy passenger vehicles (vertical, horizontal, inverted, etc.) directly affects heat transfer efficiency and pressure drop performance by altering the relative relationship between the refrigerant flow direction and the direction of gravity. When the refrigerant flow direction is opposite to the direction of gravity, the evaporated liquid refrigerant is more easily carried by the airflow, forming an annular flow or mist flow. This reduces gas-liquid stratification and enhances gas-liquid mixing, thereby improving heat transfer efficiency. However, gravity also hinders refrigerant flow, increasing pressure drop. When the flow direction aligns with gravity, gravity accelerates the downward flow of the liquid refrigerant, causing the liquid film to thin or even rupture, reducing heat transfer efficiency. However, gravity-assisted flow reduces pressure drop. When the flow direction is perpendicular to gravity, gravity causes the liquid refrigerant to settle at the bottom of the plates while the gas phase accumulates at the top, forming a pronounced stratified flow, significantly reducing heat transfer efficiency. In this case, the system pressure drop is determined by both gravity pressure drop and friction pressure drop. These correlations between flow characteristics and heat transfer performance provide important insights for optimizing battery cooler design.

[0003] Currently, the performance evaluation of battery coolers mainly relies on experimental testing methods, that is, obtaining heat transfer power and pressure drop data through actual measurements and then directly analyzing them. However, this method has the following obvious limitations: First, experimental testing requires the construction of a dedicated test bench and consumes a lot of energy, resulting in high evaluation costs; second, this method can only obtain performance data under specific placement methods, and it is impossible to establish a universal correlation model between placement method and heat transfer performance, making it difficult to predict the performance of other untested placement methods. These limitations seriously restrict the optimization design and performance improvement of battery coolers.

[0004] Therefore, it is necessary to propose an evaluation scheme for the heat exchange performance of battery coolers for new energy vehicles to solve the above technical problems. Summary of the Invention

[0005] The purpose of the present invention is to provide an evaluation method, system and equipment based on the placement of a battery cooler, so as to solve the problem that the performance testing method of the battery cooler in the prior art is not only expensive but also unable to predict the heat exchange performance under other placement methods.

[0006] To achieve the above objectives, in a first aspect, the present invention provides an evaluation method based on the placement of a battery cooler, the method comprising:

[0007] Obtain the heat exchange effect values ​​of the battery cooler under different placement methods and obtain the corresponding directional influence factors and refrigerant flow dimensions under different directional relationships;

[0008] Determining a corresponding size influence factor based on the heat exchange effect value, the refrigerant flow size, and the direction influence factor;

[0009] The heat exchange effects of battery coolers with different placements are predicted based on the direction influence factor, the refrigerant flow size, and the size influence factor.

[0010] As a further improvement of the present invention, determining a corresponding size influence factor based on the heat exchange effect value, the refrigerant flow size, and the direction influence factor includes:

[0011] Establish a relationship model between the heat exchange effect value and the direction influencing factor, refrigerant flow size, and the influencing factor of the size to be calibrated corresponding to different placement methods and different direction relationships;

[0012] Based on the known heat transfer effect value, refrigerant flow size and direction influencing factor, the corresponding influencing factor of the size to be calibrated is solved.

[0013] As a further improvement of the present invention, a relationship model is established between the heat exchange effect value and the direction influencing factor, the refrigerant flow size, and the influencing factor of the size to be calibrated corresponding to different placement methods and different direction relationships, including:

[0014] Directional influence factors for different placement methods and different direction relationships X i , refrigerant flow dimensions L i And the influencing factors of the measured size Y i The sum of the products of S j ,

[0015] ,

[0016] in, i Indicates the different relationships between the refrigerant flow direction and the gravity direction, j Indicates different placement options for the battery cooler.

[0017] As a further improvement of the present invention, obtaining the heat exchange effect values ​​of the battery cooler under different placement modes includes:

[0018] Measure the heat transfer power and pressure drop under different placement methods;

[0019] The average value between the corresponding heat exchange power and the pressure drop is used as the corresponding heat exchange performance data, and the heat exchange performance data is processed to form a corresponding heat exchange effect value.

[0020] As a further improvement of the present invention, obtaining the corresponding directional influence factors when different directional relationships are obtained includes:

[0021] The impact factor value corresponding to the refrigerant flow direction being opposite to the gravity direction is set to 3 points;

[0022] The corresponding impact factor value when the refrigerant flow direction is the same as the gravity direction is set to 2 points;

[0023] The impact factor value corresponding to the refrigerant flow direction being perpendicular to the gravity direction is set to 1 point.

[0024] As a further improvement of the present invention, the heat exchange effects of battery coolers placed in different ways are predicted based on the direction influence factor, the refrigerant flow size, and the size influence factor, including:

[0025] If the direction influence factor of different direction relationships under different placement methods X i , refrigerant flow dimensions Y i And the influencing factors of the measured size L i The larger the sum of the products of , the better the heat exchange effect of the battery cooler at the corresponding placement position;

[0026] If the direction influence factor of different direction relationships under different placement methods X i , refrigerant flow dimensions Y i And the influencing factors of the measured size L i The smaller the sum of the products of , the worse the heat exchange effect of the battery cooler at the corresponding placement position.

[0027] As a further improvement of the present invention, the placement of the battery cooler includes placing the battery cooler vertically, horizontally, or upside down; or, placing the battery cooler vertically, horizontally, upside down, or upside down.

[0028] Secondly, an evaluation system based on the placement of battery coolers is also provided, including:

[0029] Heat exchange data acquisition unit, which obtains the heat exchange effect value of the battery cooler under different placement methods;

[0030] A directional influence factor acquisition unit, which acquires the directional influence factors corresponding to different directional relationships;

[0031] A flow size acquisition unit, used to acquire the corresponding refrigerant flow sizes in different direction relationships;

[0032] a size influence factor determining unit, configured to determine a corresponding size influence factor based on the heat exchange effect value, the refrigerant flow size, and the direction influence factor;

[0033] The prediction unit predicts heat exchange effects of battery coolers placed in different ways according to the direction influence factor, the refrigerant flow size, and the size influence factor.

[0034] In a third aspect, a device for evaluating the heat exchange performance of a battery cooler is provided, comprising:

[0035] A refrigerant circulation system for regulating battery temperature;

[0036] a controller to monitor and regulate pressure and power to the battery cooler; and,

[0037] The evaluation system as described in the first aspect.

[0038] In a fourth aspect, a terminal device is provided, comprising: a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the computer program, when executed by the processor, implements the steps of the method described in the first aspect.

[0039] In a fifth aspect, a computer-readable storage medium is provided, on which a computer program is stored. When the computer program is executed by a processor, the steps of the method described in the first aspect are implemented.

[0040] The beneficial effects of the present invention are:

[0041] The evaluation method based on the placement of the battery cooler of the present invention determines the corresponding size influence factor value according to the heat exchange effect value, refrigerant flow size and direction influence factor of the battery cooler corresponding to different directional relationships under different placement methods, thereby predicting the heat exchange effect of the battery cooler by combining the heat exchange effect value, refrigerant flow size, direction influence factor and size influence factor value of the battery cooler in each direction under different placement methods. In this way, not only can the heat exchange performance of the battery cooler under different placement methods be predicted by establishing the relationship between the placement method and the heat exchange performance, but it can also greatly reduce the experimental cost and greatly improve the optimized design and performance of the battery cooler, thereby solving the problem of high experimental cost and inability to predict the heat exchange performance under different placement methods in the performance testing method of the battery cooler in the prior art. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] Figure 1This is a schematic flow chart of a method for evaluating a battery cooler placement method according to an embodiment of the present invention;

[0043] Figure 2 is a schematic flow chart of a method for evaluating a battery cooler based on placement according to another embodiment of the present invention;

[0044] Figure 3 This is a schematic flow chart of a method for evaluating a battery cooler placement according to another embodiment of the present invention;

[0045] Figure 4 This is a structural block diagram of a battery cooler placement evaluation system according to an embodiment of the present invention;

[0046] Figure 5 This is a structural block diagram of a device for evaluating the heat exchange effect of a battery cooler according to an embodiment of the present invention;

[0047] Figure 6 A topological structure diagram of a computer-readable storage medium disclosed in the present invention. DETAILED DESCRIPTION

[0048] The present invention is described in detail below with reference to the various embodiments shown in the accompanying drawings, but it should be noted that these embodiments are not limitations of the present invention, and any equivalent transformations or substitutions in functions, methods, or structures made by ordinary technicians in this field based on these embodiments are all within the scope of protection of the present invention.

[0049] The technical solutions provided by various embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0050] Example 1:

[0051] like Figure 1 As shown, this embodiment 1 provides an evaluation method based on the placement of a battery cooler (hereinafter referred to as the "evaluation method" or "method") to address the problems of existing battery cooler performance testing methods, which are expensive and cannot predict the heat exchange performance under different placement configurations. In this embodiment, the battery cooler is 185 mm long, 78 mm wide, and 65 mm high. The method of this embodiment includes:

[0052] Step 101: Obtain heat exchange effect values ​​of the battery cooler under different placements and obtain corresponding directional influence factors and refrigerant flow dimensions under different directional relationships.

[0053] like Figure 2 As shown, the operation of "obtaining the heat exchange effect value of the battery cooler under different placement modes" in step 101 specifically includes:

[0054] Step 201: Measure the heat transfer power and pressure drop corresponding to different placement methods.

[0055] The heat exchange effect of the battery cooler under different placement methods is tested to obtain the heat exchange power and pressure drop under different placement methods as the heat exchange performance data of the battery cooler.

[0056] Specifically, this embodiment measures the heat exchange power and pressure drop of a battery cooler of a new energy passenger vehicle in three typical layouts: vertical, horizontal, and inverted. The measurement results are shown in Table 1.

[0057] Table 1 Heat exchange performance data of battery cooler under different placement methods:

[0058] Placement Heat exchange power (kW) Pressure drop (kPa) Heat transfer performance data vertical placement 3.521 4.8 4.1605 Horizontal 2.434 4.0 3.217 Reverse 3.025 4.9 3.9625

[0059] Step 202: The average value between the corresponding heat exchange power and the pressure drop is used as the corresponding heat exchange performance data, and the heat exchange performance data is processed to form a corresponding heat exchange effect value.

[0060] Based on the measured heat transfer performance data in Table 1, and using the final result of one placement as a benchmark, the change in heat transfer efficiency for different placements was calculated. The resulting ratio represented the heat transfer efficiency value. For example, using the heat transfer efficiency value corresponding to the horizontal placement as 1 as a benchmark, the heat transfer efficiency value for vertical placement was 1.293, and the heat transfer efficiency value for inverted placement was 1.232.

[0061] By comparing and analyzing the test data of different placement methods, we can reveal the influence of the battery cooler's installation orientation on its overall performance, providing an optimization basis for the design of the battery thermal management system. This embodiment strictly controls boundary conditions such as flow rate and temperature to ensure data comparability.

[0062] In step 101, the specific operation of "obtaining the corresponding directional influence factors for different directional relationships" includes: setting the corresponding influence factor value when the refrigerant flow direction is opposite to the gravity direction to 3 points; setting the corresponding influence factor value when the refrigerant flow direction is the same as the gravity direction to 2 points; setting the corresponding influence factor value when the refrigerant flow direction is perpendicular to the gravity direction to 1 point.

[0063] The refrigerant flow size can be directly measured to obtain the flow length under different placement methods. In this embodiment, when the battery cooler is placed vertically, the refrigerant flow size L1 is 0.185m, and when it is placed vertically, the refrigerant flow size is 0.078m and 0.065m (L3 1 and L3 2), the refrigerant flow size L2 is 0 when the battery cooler is inverted, and the refrigerant flow direction is opposite to the gravity direction. The refrigerant flow size L1 is 0.065m, and the refrigerant flow size is 0.185m and 0.078m when it is vertical (L3 1 and L3 2 ), the refrigerant flow size L2 is 0 when the same; the refrigerant flow size L1 of the battery cooler is 0 when the refrigerant flow direction is opposite to the gravity direction, and the refrigerant flow size is 0.065m and 0.078m when it is vertical (L3 1 and L3 2 ), at the same time, the refrigerant flow size L2 is 0.078m.

[0064] Step 102: Determine a corresponding size impact factor based on the heat exchange effect value, the refrigerant flow size, and the direction impact factor.

[0065] like Figure 3 As shown, step 102 specifically includes:

[0066] Step 301. Establish a relationship model between the heat exchange effect value and the direction influencing factor, refrigerant flow size, and the influencing factor of the size to be calibrated corresponding to different placement methods and different orientations. The process of establishing this relationship model is as follows:

[0067] Directional influence factors for different placement methods and different direction relationships X i , refrigerant flow dimensions L i And the influencing factors of the measured size Y i The sum of the products of S j .Right now S j The calculation process is shown in formula 1: , (Formula 1),

[0068] in, i Indicates the different relationships between the refrigerant flow direction and the gravity direction, j Indicates different placement methods of the battery cooler. In this embodiment, X 1 represents the direction influence factor when the refrigerant flow direction is opposite to the gravity direction, X 2 is the direction influence factor when the refrigerant flow direction is the same as the gravity direction, X 3 is the direction influence factor when the refrigerant flow direction is perpendicular to the gravity direction. Y 1 is the size influence factor when the refrigerant flow direction is opposite to the gravity direction, Y2 is the size influence factor when the refrigerant flow direction is the same as the gravity direction, Y 3 is the size influence factor when the refrigerant flow direction is perpendicular to the gravity direction. L 1 is the refrigerant flow dimension when the refrigerant flow direction is opposite to the gravity direction, L 2 is the refrigerant flow dimension when the refrigerant flow direction is the same as the gravity direction, L 3 is the refrigerant flow dimension when the refrigerant flow direction is perpendicular to the gravity direction. S 1 is the heat exchange effect value when the battery cooler is placed vertically, S 2 is the heat exchange effect value when the battery cooler is placed upside down, S 3 is the heat exchange effect value when the battery cooler is placed horizontally.

[0069] Step 302. Based on the known heat transfer effect value S j , refrigerant flow dimensions L i and directional impact factors X i Solve the corresponding influencing factor of the size to be calibrated Y i .

[0070] The heat transfer effect value obtained in step 101 S j , Direction Impact Factor X i , refrigerant flow dimensions L i Substitute the values ​​of into formula 1 to form a set of equations for heat transfer effect values ​​under different placement methods, as shown in formula 2: , (Formula 2),

[0071] Solving the equation group (Equation 2) yields the size influence factor: Y 1=1.388, Y 2=0.553, Y 3=3.655.

[0072] Step 103: Predict the heat exchange effects of battery coolers with different placements based on the direction influence factor, refrigerant flow size, and size influence factor.

[0073] Among them, if the direction influence factor of different direction relationships under different placement methods is X i , refrigerant flow dimensions Y i And the influencing factors of the measured size L i The sum of the products of S j) value, the better the heat exchange effect of the battery cooler when it is placed in the corresponding position; on the contrary, if the direction influence factor is different under different placement methods and different direction relationships, X i , refrigerant flow dimensions Y i And the influencing factors of the measured size L i The sum of the products of S j ) value is smaller, the worse the heat exchange effect of the battery cooler at the corresponding placement position.

[0074] It can be understood that the size influence factor obtained according to formula 2 is Y i , the directional impact factors obtained above X i 、 Refrigerant flow size L i Substituting into formula 1, we can get the heat transfer effect value under different placement methods, that is, the heat transfer effect value when placed vertically is S 1=1.293, heat transfer effect value when inverted S 2=1.232, heat exchange effect value when placed horizontally S 3 = 1. Therefore, the battery cooler of this embodiment has the best heat exchange effect when placed vertically.

[0075] Of course, since the values ​​of the various parameters remain unchanged when calculating the heat exchange effect value, the resulting heat exchange effect value is consistent with the heat exchange effect value measured in step 201. Therefore, to test the heat exchange effect of other placement methods, the following predicts the heat exchange effect of placing the battery cooler upside down (flipping the upside-down placement method 180 degrees so that the coolant inlet and outlet are positioned from top to bottom, and the refrigerant inlet and outlet are positioned from bottom to top). Of course, the heat exchange effect of other battery cooler placement methods can also be predicted, but these will not be described in detail here.

[0076] When the battery cooler is inverted, the refrigerant flow direction is opposite to the gravity direction and the refrigerant flow dimension L1 is 0. When the same, the refrigerant flow dimension L2 is 0.065m. The vertical refrigerant flow dimension L3 is 0.185m and 0.078m (L3 1 and L3 2 ), the heat transfer effect of the inverted placement is calculated according to formula 1:

[0077] S 4 =2×0.065×0.553+1×0.185×3.655+1×0.078×3.655=1.033,

[0078] Through comparative analysis, we can see that S 3 < S 4 < S 2 < S 1 That is, in this embodiment, the heat exchange performance of the battery cooler is best when placed upright, second best when placed upside down, and worst when placed horizontally. This means that the evaluation method of this embodiment can conveniently, quickly, and simply evaluate the heat exchange performance of any battery cooler, overcoming the drawbacks of existing evaluation methods, such as their high cost.

[0079] It should be noted that the prediction results of Example 1 show that among the battery coolers of the current limited size, the vertical placement has the best heat exchange effect. This conclusion is only applicable to the coolers of the specific specifications of this example. For battery coolers of other sizes, the evaluation method of this example can be used to predict the heat exchange performance in combination with the specific specifications and installation methods. Of course, the method of this example can also be used for other placement methods of battery coolers (such as 30 ° , 60 ° The specific prediction principle is the same as above and will not be described in detail here.

[0080] In addition, the method of Example 1 constructs a set of equations to solve the size-influencing factors using three placement methods: horizontal, vertical, and inverted. Alternatively, any three of these methods can be used to construct a set of equations to solve the size-influencing factors, thereby improving the accuracy of the battery cooler heat exchange performance prediction.

[0081] In summary, the evaluation method based on the placement of the battery cooler in Example 1 determines the corresponding size influence factor value according to the heat exchange effect value, refrigerant flow size and direction influence factor of the battery cooler in different directional relationships under different placement methods, thereby predicting the heat exchange effect of the battery cooler in combination with the heat exchange effect value, refrigerant flow size, direction influence factor and size influence factor value of the battery cooler in each direction under different placement methods. In this way, not only can the heat exchange performance of the battery cooler under different placement methods be predicted by establishing the relationship between the placement method and the heat exchange performance, but the experimental cost can also be greatly reduced, and the optimized design and performance of the battery cooler can be greatly improved, thereby solving the problem that the performance testing method of the battery cooler in the prior art has high experimental costs and cannot predict the heat exchange performance under different placement methods.

[0082] Example 2:

[0083] like Figure 4As shown, this embodiment 2 also provides an evaluation system 400 based on the placement of a battery cooler, which includes: a heat exchange data acquisition unit 401 for acquiring the heat exchange effect value of the battery cooler under different placement methods; a direction influence factor acquisition unit 402 for acquiring the direction influence factor corresponding to different direction relationships; a flow size acquisition unit 403 for acquiring the refrigerant flow size corresponding to different direction relationships; a size influence factor determination unit 404 for determining the corresponding size influence factor based on the heat exchange effect value, the refrigerant flow size, and the direction influence factor; and a prediction unit 405 for predicting the heat exchange effect of the battery cooler under different placement methods based on the direction influence factor, the refrigerant flow size, and the size influence factor. The size influence factor determination unit 404 includes a model building unit 4041 for establishing a relationship model between the heat exchange effect value and the direction influence factor, the refrigerant flow size, and the size influence factor to be calibrated under different placement methods and different direction relationships; and a calculation unit 4042 for solving the corresponding size influence factor to be calibrated based on the known heat exchange effect value, the refrigerant flow size, and the direction influence factor.

[0084] It should be understood that the evaluation system 400 based on the placement of the battery cooler in this embodiment 2 determines the corresponding size influence factor value through the size influence factor determination unit 404 based on the heat exchange effect value of the battery cooler under different placement modes obtained by the heat exchange data acquisition unit 401, the corresponding direction influence factor for different direction relationships obtained by the direction influence factor acquisition unit 402, and the refrigerant flow size obtained by the flow size acquisition unit 403. The heat exchange effect of the battery cooler is predicted by the prediction unit 405 based on the heat exchange effect value, refrigerant flow size, direction influence factor, and size influence factor value of the battery cooler in each direction under different placement modes. In this way, the evaluation system 400 of this embodiment 2 can not only predict the heat exchange performance of the battery cooler under different placement modes based on the relationship between the placement mode and the heat exchange performance, but also greatly reduce the experimental cost and greatly improve the optimized design and performance of the battery cooler, thereby solving the problem that the performance testing method of the battery cooler in the prior art has high experimental cost and cannot predict the heat exchange performance under different placement modes.

[0085] It should be noted that the technical solutions of the evaluation system 400 based on the placement of the battery cooler in the second embodiment are the same as those in the first embodiment, and are described in the first embodiment, which will not be repeated here.

[0086] Example 3:

[0087] This embodiment 3 provides a device 500 for evaluating the heat exchange performance of a battery cooler, including: a refrigerant circulation system 501 for regulating the battery temperature; a controller 502 for monitoring and regulating the pressure and power of the battery cooler; and the evaluation system 400 described in embodiment 2.

[0088] The device 500 for evaluating the heat exchange performance of a battery cooler in this embodiment 3 utilizes the circulation of refrigerant and the coordinated operation of various components in the refrigerant circulation system, and uses a controller 502 to achieve temperature control and thermal management of the battery, thereby improving the energy efficiency and reliability of the system. Furthermore, this embodiment 3 utilizes the relationship between placement and heat exchange performance to predict the heat exchange effect of the battery cooler under different placements, thereby improving the optimized design and performance of the battery cooler, addressing the reliability, energy efficiency, and spatial adaptability issues of the battery thermal management system, and significantly reducing experimental costs.

[0089] Thus configured, the device 500 for evaluating the heat exchange performance of a battery cooler achieves heat transfer through a refrigerant circulation system and, in conjunction with the controller 502, precisely controls the battery temperature. This improves system energy efficiency and reliability while innovatively establishing a predictive model for placement and heat exchange performance. This embodiment 3 not only guides the optimization of cooler flow paths and structures by predicting heat exchange effects in different orientations, such as vertical, horizontal, inverted, and upside-down placement, but also directly addresses key challenges in battery thermal management systems in terms of reliability (e.g., avoiding localized overheating), energy efficiency (reducing pump power loss), and spatial adaptability (compact layout). Simultaneously, by replacing physical experiments with simulations, it significantly reduces R&D costs and cycles.

[0090] It should be noted that the technical solutions of the device 500 for evaluating the heat exchange performance of a battery cooler in this embodiment 3 are the same as those in embodiment 1. Please refer to the description in embodiment 1 and will not be repeated here.

[0091] Example 4:

[0092] Embodiment 4 of the present invention further provides a terminal device, which may include a processor, a memory, and a computer program stored in the memory and operable on the processor, wherein the computer program is executed by the processor to implement the above-mentioned Figure 1-Figure 3 The various processes of the embodiment of the evaluation method based on the placement of the battery cooler shown can achieve the same technical effect. To avoid repetition, they will not be described here.

[0093] Example 5:

[0094] Combine Figure 6As shown, this embodiment 5 also discloses a specific implementation of a computer-readable storage medium 600. The computer-readable storage medium 600 can be configured in whole or in part in a physical computer, server, cluster server or data center.

[0095] In this embodiment 5, the computer readable storage medium 600 stores computer program instructions 601 . When the computer program instructions 601 are read and executed by a processor 602 , the steps of the evaluation method based on the placement of the battery cooler as disclosed in embodiment 1 are executed.

[0096] Optionally, the computer-readable storage medium 600 can be configured as a server, and the server can run on a physical device used to build a private cloud, hybrid cloud, or public cloud. Furthermore, the computer-readable storage medium 600 can be configured as random access memory (RAM), read-only memory (ROM), programmable read-only memory (PROM), erasable programmable read-only memory (EPROM), electrically erasable programmable read-only memory (EEPROM), etc.

[0097] The computer-readable storage medium 600 is used to store a program. After receiving an execution instruction, the processor 602 executes the evaluation method based on the placement of the battery cooler disclosed in Example 1.

[0098] Meanwhile, the processor 602 disclosed in this embodiment 5 may be an integrated circuit chip with signal processing capabilities. The processor 602 may be a general-purpose processor, including a central processing unit (CPU), a network processor (NP), etc.; it may also be a digital signal processor (DSP), an application-specific integrated circuit (ASIC), a field-programmable gate array (FPGA), or other programmable logic devices, discrete gate or transistor logic devices, or discrete hardware components. It can implement or execute the various methods, steps, and logic block diagrams disclosed in the embodiments of the present invention. The general-purpose processor may be a microprocessor or any conventional processor.

[0099] For the technical solutions of the computer-readable storage medium 600 disclosed in this embodiment 5 that are the same as those in embodiment 1 and / or embodiment 2, please refer to those in embodiment 1 and / or embodiment 2 and will not be repeated here.

[0100] The series of detailed descriptions listed above are only specific descriptions of feasible implementation methods of the present invention. They are not intended to limit the scope of protection of the present invention. Any equivalent implementation methods or changes that do not deviate from the technical spirit of the present invention should be included in the scope of protection of the present invention.

[0101] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the invention can be embodied in other specific forms without departing from the spirit or essential characteristics of the invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be included therein. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

[0102] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. An evaluation method based on the placement of a battery cooler, characterized in that: The method comprises: Obtain the heat exchange effect values ​​of the battery cooler under different placement methods and obtain the corresponding directional influence factors and refrigerant flow dimensions under different directional relationships; Determining a corresponding size influence factor based on the heat exchange effect value, the refrigerant flow size, and the direction influence factor; The heat exchange effects of battery coolers with different placements are predicted based on the direction influence factor, the refrigerant flow size, and the size influence factor.

2. The evaluation method according to claim 1, wherein: Determining a corresponding size influence factor based on the heat exchange effect value, the refrigerant flow size, and the direction influence factor includes: Establish a relationship model between the heat exchange effect value and the direction influencing factor, refrigerant flow size, and the influencing factor of the size to be calibrated corresponding to different placement methods and different direction relationships; Based on the known heat transfer effect value, refrigerant flow size and direction influencing factor, the corresponding influencing factor of the size to be calibrated is solved.

3. The evaluation method according to claim 2, wherein: Establish the relationship model between the heat exchange effect value and the direction influencing factor, refrigerant flow size, and the influencing factor of the size to be calibrated corresponding to different placement methods and different direction relationships, including: Directional influence factors for different placement methods and different direction relationships X i , refrigerant flow dimensions L i And the influencing factors of the measured size Y i The sum of the products of S j， ， in, i Indicates the different relationships between the refrigerant flow direction and the gravity direction, j Indicates different placement options for the battery cooler.

4. The evaluation method according to any one of claims 1 to 3, characterized in that Obtain the heat exchange effect values ​​of the battery cooler under different placement methods, including: Measure the heat transfer power and pressure drop under different placement methods; The average value between the corresponding heat exchange power and the pressure drop is used as the corresponding heat exchange performance data, and the heat exchange performance data is processed to form a corresponding heat exchange effect value.

5. The evaluation method according to any one of claims 1 to 3, characterized in that: Obtain the corresponding directional influence factors for different directional relationships, including: The impact factor value corresponding to the refrigerant flow direction being opposite to the gravity direction is set to 3 points; The corresponding impact factor value when the refrigerant flow direction is the same as the gravity direction is set to 2 points; The impact factor value corresponding to the refrigerant flow direction being perpendicular to the gravity direction is set to 1 point.

6. The evaluation method according to any one of claims 1 to 3, characterized in that: Predicting the heat exchange effects of battery coolers in different placements based on the direction influencing factor, the refrigerant flow size, and the size influencing factor includes: If the direction influence factor of different direction relationships under different placement methods X i , refrigerant flow dimensions Y i And the influencing factors of the measured size L i The larger the sum of the products of , the better the heat exchange effect of the battery cooler at the corresponding placement position; If the direction influence factor of different direction relationships under different placement methods X i , refrigerant flow dimensions Y i And the influencing factors of the measured size L i The smaller the sum of the products of , the worse the heat exchange effect of the battery cooler at the corresponding placement position.

7. The evaluation method according to claim 6, wherein: The battery cooler can be placed vertically, horizontally, or upside down; or the battery cooler can be placed vertically, horizontally, upside down, or upside down.

8. An evaluation system based on the placement of battery coolers, characterized in that: include: Heat exchange data acquisition unit, which obtains the heat exchange effect value of the battery cooler under different placement methods; A directional influence factor acquisition unit, which acquires the directional influence factors corresponding to different directional relationships; A flow size acquisition unit, used to acquire the corresponding refrigerant flow sizes in different direction relationships; a size influence factor determining unit, configured to determine a corresponding size influence factor based on the heat exchange effect value, the refrigerant flow size, and the direction influence factor; The prediction unit predicts heat exchange effects of battery coolers with different placements according to the direction influence factor, the refrigerant flow size, and the size influence factor.

9. A device for evaluating the heat exchange performance of a battery cooler, characterized in that: include: A refrigerant circulation system for regulating battery temperature; a controller to monitor and regulate pressure and power to the battery cooler; as well as, The evaluation system according to claim 8.

10. A computer-readable storage medium storing a computer program, wherein the computer-readable storage medium stores a computer program, and when the computer program is executed by a processor, the computer program implements the steps of the method according to any one of claims 1 to 7.

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