Cooler, battery thermal management system and working machine

Abstract

The utility model relates to a cooler, a battery thermal management system and an operation machine. The cooler comprises a cooler core body, wherein an inlet section flow channel, an outlet section flow channel and a plurality of heat exchange section flow channels for communicating the inlet section flow channel with the outlet section flow channel are arranged in the cooler core body. The outlet section flow channel is provided with an opening end communicated with the cooling liquid outlet of the cooler core body and a closed end closed by the first shell wall of the cooler core body. The cooler further comprises an outlet section temperature sensor installed on the cooler core body, and a temperature measuring probe of the outlet section temperature sensor penetrates through the closed end of the outlet section flow channel and extends into the outlet section flow channel so as to measure the temperature of cooling liquid entering the outlet section flow channel after heat exchange. According to the cooler, convenience, reliability, stability, sealing performance and the like of installation of the temperature sensor are improved, and the temperature of cooling liquid after heat exchange in the cooler can be measured more accurately.

Description

Technical Field

[0001] The utility model relates to the technical field of coolers or heat exchangers, and in particular to a cooler used, for example, in an operating machine to cool a battery or other devices. Background Art

[0002] The battery cooler is a key component of the battery thermal management system for operating machinery powered by batteries (packs). Generally speaking, during the actual operation of a battery cooler, the refrigerant introduced into the battery cooler evaporates within the cooler and absorbs heat from the coolant also flowing through it, thereby cooling the coolant. This shows that the battery cooler essentially functions as a heat exchanger. The coolant outlet of the battery cooler is connected to the battery pack (sometimes simply referred to as a "battery") via a pipeline (usually a hose), allowing the coolant flowing out of the battery cooler to cool the battery pack, ensuring that the temperature of the battery pack does not exceed the specified temperature.

[0003] In the prior art, a temperature sensor is typically installed on the pipe to measure the temperature of the coolant flowing out of the battery cooler after heat exchange. Based on this temperature, the flow rate of the refrigerant entering the battery cooler is adjusted, thereby controlling the cooling effect of the coolant on the battery pack. However, installing the temperature sensor on the hose requires laborious drilling and complex installation operations, making the temperature sensor installation inconvenient and ineffective. Furthermore, after flowing out of the battery cooler, the coolant must flow along the hose for at least a certain distance before reaching the temperature sensor. This section of the hose is easily affected by the external environment, resulting in the temperature sensor's detection results not accurately reflecting the temperature of the coolant after heat exchange in the battery cooler. Utility Model Content

[0004] The purpose of the present invention is to solve at least one of the above problems and / or other defects in the prior art.

[0005] To achieve the above-mentioned objectives, according to one aspect of the present invention, a cooler is provided, comprising a cooler core, wherein the cooler core is provided with an inlet section flow channel, an outlet section flow channel, and a plurality of heat exchange section flow channels connecting the inlet section flow channel and the outlet section flow channel, wherein the inlet section flow channel is used to receive coolant entering the cooler core before heat exchange, and the outlet section flow channel is used to receive coolant leaving the cooler core after heat exchange through the heat exchange section flow channel, and the outlet section flow channel has an open end connected to the coolant outlet of the cooler core and a closed end closed by the first shell wall of the cooler core. The cooler also comprises an outlet section temperature sensor mounted on the cooler core, wherein a temperature measuring probe of the outlet section temperature sensor extends through the closed end of the outlet section flow channel into the outlet section flow channel to measure the temperature of the coolant entering the outlet section flow channel after heat exchange.

[0006] According to one embodiment of the present invention, the cooler further comprises a mounting plate engaged with the first shell wall to mount the cooler in place, and the outlet section temperature sensor is fixed on the mounting plate.

[0007] According to one embodiment of the present invention, the mounting plate is provided with a mounting hole for the outlet section temperature sensor to pass through, and an annular mounting seat is provided on the periphery of the mounting hole, and the outlet section temperature sensor is liquid-tightly installed in the mounting seat relative to the mounting seat.

[0008] According to one embodiment of the present invention, the outlet section flow channel extends straight between its closed end and the coolant outlet, so that its closed end and the coolant outlet are opposite to each other.

[0009] According to one embodiment of the present invention, the temperature measuring probe of the outlet section temperature sensor extends parallel to the outlet section flow channel, and the length thereof extending into the outlet section flow channel is less than one third of the total length of the outlet section flow channel.

[0010] According to one embodiment of the present utility model, the inlet section flow channel has an open end connected to the coolant inlet of the cooler core and a closed end closed by the first shell wall. The cooler also includes an inlet section temperature sensor installed on the cooler core. The temperature measuring probe of the inlet section temperature sensor passes through the closed end of the inlet section flow channel and extends into the inlet section flow channel to measure the temperature of the coolant in the inlet section flow channel before heat exchange.

[0011] According to one embodiment of the present invention, the cooler core is provided with a refrigerant inlet and a refrigerant outlet on its second shell wall arranged opposite to the first shell wall, and the cooler also includes an expansion valve arranged at the refrigerant inlet and refrigerant outlet and connected to their fluids.

[0012] According to one embodiment of the present invention, the periphery of the expansion valve and / or the cooler core is covered with a heat insulation layer.

[0013] According to one embodiment of the present invention, the cooler core includes a plurality of corrugated heat exchange plates stacked between the first shell wall and the second shell wall to define the plurality of heat exchange section flow channels, and the outlet section flow channel and the inlet section flow channel respectively extend from the coolant outlet and the coolant inlet of the cooler core provided on the second shell wall, perpendicular to and through the plurality of corrugated heat exchange plates, to their respective closed ends.

[0014] According to another aspect of the present invention, a battery thermal management system is provided. The battery thermal management system includes a battery and a cooler of any of the above configurations, the cooler being in communication with the battery via a coolant to cool the battery.

[0015] According to another aspect of the present invention, a working machine is provided. The working machine includes a cooler of any one of the above configurations or a battery thermal management system as described above.

[0016] The cooler of the present invention is particularly useful for cooling batteries in battery thermal management systems for working machinery. By inserting the temperature probe of the outlet temperature sensor through the closed end of the outlet flow channel of the cooler core and extending into the outlet flow channel, the cooler can directly measure the temperature of the coolant entering the outlet flow channel after heat exchange through the heat exchange flow channel. Compared with the temperature measured at a hose a certain distance outside the cooler core in the prior art, this temperature more accurately reflects the coolant temperature after heat exchange, enabling the battery thermal management system to perform more precise control based on this information. Furthermore, the outlet temperature sensor of the present invention is directly mounted on the cooler core, eliminating the laborious process of drilling a hole in the hose for temperature sensor installation as in the prior art, thereby improving the convenience, reliability, stability, and sealing of the temperature sensor installation. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The features and advantages of the present invention will be clearly understood through the detailed description provided below with reference to the accompanying drawings. It should be understood that the following drawings are merely schematic and not necessarily drawn to scale, and therefore should not be considered as limiting the present invention, wherein:

[0018] Figure 1 A perspective view of a cooler according to an embodiment of the present invention is shown.

[0019] Figure 2 Show Figure 1 Exploded view of the cooler shown.

[0020] Figure 3 Show Figure 1 Side view of the cooler shown.

[0021] Figure 4 Show Figure 3 The cooler is shown in a cross-sectional view taken along line AA.

[0022] Description of reference numerals:

[0023] 1. Cooler core; 11. Outlet section flow channel; 12. Inlet section flow channel; 13. Heat exchange section flow channel; 14. First shell wall; 141. Sensor introduction hole; 142. Sensor introduction hole; 15. Second shell wall; 151. Coolant outlet; 152. Coolant inlet; 153. Refrigerant outlet; 16. Corrugated heat exchange plate; 2. Outlet section temperature sensor; 3. Mounting plate; 31. Mounting hole; 32. Mounting hole; 4. Mounting seat; 5. Inlet section temperature sensor; 6. Mounting seat; 7. Expansion valve; 71. Valve body interface; 72. Valve body interface. DETAILED DESCRIPTION

[0024] Embodiments of the present invention are described below with reference to the accompanying drawings. In the following description, many specific details are set forth so that those skilled in the art can more fully understand and implement the present invention. However, it will be apparent to those skilled in the art that the present invention may be implemented without some of these specific details. Furthermore, it should be understood that the present invention is not limited to the specific embodiments described. On the contrary, any combination of the features and elements described below may be considered to implement the present invention, regardless of whether they relate to different embodiments. Therefore, the following aspects, features, embodiments, and advantages are for illustrative purposes only and should not be considered as elements or limitations of the claims unless expressly set forth in the claims.

[0025] In the following description, terms such as "first," "second," and the like are used to describe elements of the present application. These terms are only used to distinguish between the elements and are not used to limit the nature, order, or number of the elements. The terms "including" and "having" are used to express an open-ended inclusive meaning and mean that additional elements / components may be present in addition to the listed elements / components.

[0026] Figures 1 to 4The figure shows a cooler according to an embodiment of the present invention, which is used, for example, in a working machine equipped with a battery pack as a power source. On one hand, it is connected to the battery pack through a coolant fluid for cooling the battery pack, and on the other hand, it is connected to the air conditioning system of the working machine through a refrigerant fluid provided by the air conditioning system. Figures 1 to 3 As shown, the cooler according to this embodiment includes a cooler core 1 as its main portion. Figure 4 The internal structure of the cooler core 1 is shown. The refrigerant and the coolant liquid introduced into the cooler exchange heat within the cooler core 1, so that the refrigerant is used to cool the coolant liquid after cooling the battery pack.

[0027] like Figure 4 As shown, an inlet section flow channel 12, an outlet section flow channel 11, and a plurality of heat exchange section flow channels 13 connecting the inlet section flow channel 12 and the outlet section flow channel 11 can be provided in the cooler core 1 for the coolant. Similarly, corresponding flow channels (not shown) for the refrigerant to enter, exchange heat, and flow out are also provided in the cooler core 1 for the refrigerant. After entering the cooler core 1, the coolant is first collected in the inlet section flow channel 12 before heat exchange, and then flows from the inlet section flow channel 12 into the plurality of heat exchange section flow channels 13 in parallel. In the process of flowing through each heat exchange section flow channel 13, heat is exchanged with the refrigerant in the adjacent refrigerant heat exchange flow channel. After the heat exchange is completed, the coolant is collected from each heat exchange section flow channel 13 into the outlet section flow channel 11, and leaves the cooler core 1 through the outlet section flow channel 11.

[0028] According to one exemplary configuration, the cooler core 1 may include a first shell wall 14, a second shell wall 15 disposed opposite the first shell wall 14, and a plurality of corrugated heat exchange plates 16 stacked between the first shell wall 14 and the second shell wall 15. Furthermore, a circumferential shell wall of the cooler core 1 may be disposed around the periphery of the plurality of corrugated heat exchange plates 16. This circumferential shell wall, the first shell wall 14, and the second shell wall 15 may be welded together, for example, to form the outer shell of the cooler core 1. Each corrugated heat exchange plate 16 has a plurality of peaks and a plurality of troughs. The crest of each corrugated heat exchange plate 16 is joined to the trough of another corrugated heat exchange plate adjacent to it on one side, and the trough of each corrugated heat exchange plate 16 is joined to the crest of another corrugated heat exchange plate adjacent to it on the other side, so that the stacked multiple corrugated heat exchange plates 16 together define a plurality of flow channels in a honeycomb or mesh shape in the cross section, and these multiple flow channels can be staggered and respectively set as the multiple heat exchange section flow channels 13 for the coolant and the multiple heat exchange flow channels for the refrigerant. Generally speaking, the more the number of stacked corrugated heat exchange plates 16, the higher the cooling power of the cooler. It should be pointed out that for the sake of simplicity and clarity, Figure 4The corrugated heat exchange plates 16 and the heat exchange section flow channel 13 are schematically shown in a straight shape. The coolant inlet 152 and the coolant outlet 151 for the coolant to enter and exit the cooler core 1 are, for example, opened on the second shell wall 15 of the cooler core 1. Figures 1 to 4 As shown, on the outside of the cooler core 1 , elbows, for example bent 90 degrees, are connected to the coolant inlet 152 and the coolant outlet 151 , respectively, for introducing the coolant into the cooler core 1 and guiding it out of the cooler core 1 .

[0029] like Figure 4 As shown, the inlet section flow channel 12 has an open end portion ( Figure 4 The left end portion in the middle) and the closed end portion closed by the first shell wall 14 ( Figure 4 In the illustrated embodiment, the open end of the inlet section flow channel 12 is adjacent to the coolant inlet 152, and the inlet section flow channel 12 extends straight between the coolant inlet 152 and its closed end, such that its closed end and the coolant inlet 152 are opposite each other. More specifically, the inlet section flow channel 12 extends from the coolant inlet 152 through the plurality of corrugated heat exchange plates 16 to its closed end. This allows the inlet section flow channel 12 to be fluidically connected to each of the heat exchange section flow channels 13. After the coolant enters the inlet section flow channel 12 through the coolant inlet 152, it is blocked by its closed end but can flow into each of the heat exchange section flow channels 13 in parallel for heat exchange. The extension direction of the inlet section flow channel 12 is, for example, perpendicular to the plurality of corrugated heat exchange plates 16.

[0030] Similarly, the outlet section flow channel 11 has an open end portion ( Figure 4 The left end portion in the middle) and the closed end portion closed by the first shell wall 14 ( Figure 4 ). Similarly, in the illustrated embodiment, the open end of the outlet section flow channel 11 is adjacent to the coolant outlet 151, and the outlet section flow channel 11 extends straight between its closed end and the coolant outlet 151, so that its closed end and the coolant outlet 151 are opposite to each other. More specifically, the outlet section flow channel 11 extends from the coolant outlet 151 through the multiple corrugated heat exchange plates 16 to its closed end, whereby the outlet section flow channel 11 can also be fluidically connected with each heat exchange section flow channel 13, so that the coolant can flow out to the outlet section flow channel 11 after heat exchange in the heat exchange section flow channel 13, and after entering the outlet section flow channel 11, it can be blocked by its closed end and flow out of the cooler core 1 through the coolant outlet 151. The extension direction of the outlet section flow channel 11 is also, for example, perpendicular to the multiple corrugated heat exchange plates 16.

[0031] Continue to refer Figure 4In order to measure the temperature of the coolant after heat exchange in the cooler core 1 to be used as a control parameter of the battery thermal management system, the cooler according to this embodiment may include an outlet section temperature sensor 2 installed on the cooler core 1. According to the present invention, the temperature measuring probe of the outlet section temperature sensor 2 passes through the closed end of the outlet section flow channel 11 and extends into the outlet section flow channel 11, thereby being able to directly measure the temperature of the coolant entering the outlet section flow channel 11 after heat exchange in the heat exchange section flow channel 13. In order to facilitate the temperature measuring probe of the outlet section temperature sensor 2 to pass through the closed end of the outlet section flow channel 11, a sensor hole can be opened at the closed end, that is, a hole can be opened on the first shell wall 14. Figure 4 The sensor introduction hole 141 is shown for the temperature measuring probe to pass through.

[0032] According to an exemplary configuration, the main body of the outlet section temperature sensor 2 can be mounted on the first housing wall 14 in a liquid-tight manner relative to the sensor introduction hole 141 (i.e., it can prevent the coolant from leaking out through the sensor introduction hole 141). However, in the illustrated embodiment, the outlet section temperature sensor 2 is not directly mounted on the first housing wall 14, but is fixed to the mounting plate 3. More specifically, in order to facilitate the installation of the cooler to a predetermined position, the cooler according to this embodiment may further include the following: Figures 1 to 4 The mounting plate 3 is shown. The mounting plate 3 is generally rectangular and is attached to the outside of the first shell wall 14. The mounting plate 3 has a peripheral portion extending outside the cooler core 1. This peripheral portion may be provided with a plurality of fastening holes for attaching the cooler to a rack or other supporting device, for example, via fasteners. Due to its substantial thickness and strength, the mounting plate 3 is suitable for mounting the outlet temperature sensor 2. To this end, the mounting plate 3 may be provided with a mounting hole 31, and the main body of the outlet temperature sensor 2 may be fluid-tightly mounted on the mounting plate 3 relative to the mounting hole 31. In a further advantageous embodiment, an annular mounting seat 4 may be connected to the periphery of the mounting hole 31, for example, by welding, and the outlet temperature sensor 2 may be fluid-tightly mounted within the mounting seat 4. Providing a separate mounting seat facilitates standardized installation of temperature sensors. For example, the mounting openings within the mounting seat 4 may be standardized for the type of outlet temperature sensor 2 (e.g., using the SAE Port-8 specification) to meet requirements for installation dimensions, sealing, reliability, and strength.

[0033] In the illustrated embodiment, the temperature probe of the outlet section temperature sensor 2 can extend parallel to the outlet section flow channel 11, and the length of the probe extending into the outlet section flow channel 11 can be less than half the total length of the outlet section flow channel 11, and more preferably less than one-third of the total length. This minimizes the risk of the temperature probe of the outlet section temperature sensor 2 extending too far into the outlet section flow channel 11 and causing excessive resistance and interference to the flow of the coolant.

[0034] Optionally, the cooler of this embodiment may further include an inlet section temperature sensor 5, also mounted on the cooler core 1. The temperature probe of the inlet section temperature sensor 5 extends through the closed end of the inlet section flow channel 12 and into the inlet section flow channel 12, thereby directly measuring the temperature of the coolant in the inlet section flow channel 12 before heat exchange. This temperature can be used as an additional parameter to assist in thermal control of the battery thermal management system.

[0035] The installation and setting method of the inlet section temperature sensor 5 can be consistent with the outlet section temperature sensor 2. More specifically, a temperature sensor 5 can be provided on the first shell wall 14. Figure 4 The sensor introduction hole 142 is shown for the temperature probe of the inlet section temperature sensor 5 to pass through. The mounting plate 3 may also be provided with a mounting hole 32 and a mounting seat 6 connected around the periphery of the mounting hole 32. The main body of the inlet section temperature sensor 5 can be mounted in the mounting seat 6 in a liquid-tight manner relative to the mounting seat 6. Similarly, the temperature probe of the inlet section temperature sensor 5 can extend parallel to the inlet section flow channel 12, and the length of the probe extending into the inlet section flow channel 12 is less than half, preferably one-third, of the total length of the inlet section flow channel 12.

[0036] The cooler core 1 may also be provided with a refrigerant inlet (not shown) and a refrigerant outlet 153, for example, on the second shell wall 15, for supplying refrigerant into and out of the cooler core 1. The cooler of this embodiment may also include an expansion valve 7 (which may be, for example, a thermal expansion valve or an electronic expansion valve) provided at the refrigerant inlet and refrigerant outlet. The expansion valve 7 has valve body interfaces 71 and 72 that are respectively in liquid-tight communication with the refrigerant inlet and refrigerant outlet 153, so that refrigerant can enter and exit the cooler core 1 via the expansion valve 7. The arrangement of the expansion valve 7 at the refrigerant inlet and refrigerant outlet of the cooler core 1 helps to minimize the suction pressure drop.

[0037] According to a favorable optional configuration, the periphery of one or both of the expansion valve 7 and the cooler core 1 may be covered with an insulation layer (not shown), for example, formed of an insulation material, so as to effectively block the influence of the external environment on the refrigerant in the expansion valve 7 and the coolant and refrigerant in the cooler core 1.

[0038] In the above embodiment, the cooler of the present invention is connected to the battery pack of the working machine via a coolant to cool the battery pack. However, those skilled in the art will readily appreciate that the cooler of the present invention can also be connected to any device or component other than the battery pack that requires cooling via a coolant, without affecting the structure and functionality of the cooler itself.

[0039] Industrial Applicability

[0040] The cooler according to the present invention can be used, for example, in various work machines powered by battery packs, forming part of the machine's battery thermal management system. The cooler is in fluid communication with the battery pack via a coolant and with the machine's air conditioning system via a refrigerant. The refrigerant and coolant exchange heat within the cooler, allowing the refrigerant to cool the coolant and, in turn, the battery pack, thereby keeping the battery pack temperature within a desired range.

[0041] To facilitate the battery thermal management system's control of the cooler's cooling effect, it's necessary to measure the temperature of the coolant after cooling. According to the present invention, the outlet temperature sensor 2 used to measure this temperature is directly mounted on the cooler core 1, for example, by being secured directly to the cooler's mounting plate 3, which is already included with the cooler and used to secure it, via a specific mounting base 4. This improves the convenience, reliability, stability, sealing, and cost-effectiveness of temperature sensor installation compared to the prior art method of laboriously drilling holes in the hose connected to the battery cooler.

[0042] In addition, the cooler of the present invention allows the temperature measuring probe of the outlet section temperature sensor 2 to pass through the closed end of the outlet section flow channel 11 of the cooler core 1 and extend into the outlet section flow channel, thereby directly measuring the temperature of the coolant entering the outlet section flow channel after heat exchange through the heat exchange section flow channel. Compared with the temperature measured at a hose at a certain distance outside the cooler core in the prior art, the temperature directly measured in the present invention is not affected by the external environment, and can more accurately reflect the coolant temperature after heat exchange, so that the battery thermal management system can perform higher-precision control based on this.

[0043] The present invention can also provide an optional inlet temperature sensor 5 for the cooler, and its installation and setting method can be consistent with the above-mentioned outlet temperature sensor 2. It can directly measure the temperature of the coolant in the cooler core 1 before heat exchange in a simple and reliable manner, providing additional control parameters for the thermal control of the battery thermal management system.

[0044] When the cooler of the present invention is connected to other devices or components besides the battery pack through the coolant, a technical effect similar to that described above can also be obtained.

[0045] It will be apparent to those skilled in the art that various modifications and variations may be made to the embodiments disclosed above without departing from the scope or spirit of the present invention. Other embodiments of the present invention will be apparent to those skilled in the art from the practice of the present invention disclosed herein. This specification and the examples disclosed herein should be considered as illustrative only, and the true scope of the present invention is indicated by the appended claims and their equivalents.

Claims

1. A cooler, comprising a cooler core (1), wherein the cooler core is provided with an inlet section flow channel (12), an outlet section flow channel (11), and a plurality of heat exchange section flow channels (13) connecting the inlet section flow channel and the outlet section flow channel, wherein the inlet section flow channel is used to receive coolant entering the cooler core before heat exchange, and the outlet section flow channel is used to receive coolant to leave the cooler core after heat exchange through the heat exchange section flow channel, and the outlet section flow channel (11) has an open end portion connected to a coolant outlet (151) of the cooler core and a closed end portion closed by a first shell wall (14) of the cooler core, It is characterized by: The cooler further comprises an outlet section temperature sensor (2) mounted on the cooler core, wherein a temperature measuring probe of the outlet section temperature sensor passes through the closed end of the outlet section flow channel (11) and extends into the outlet section flow channel to measure the temperature of the coolant entering the outlet section flow channel after heat exchange.

2. The cooler according to claim 1, characterized in that The cooler further comprises a mounting plate (3) engaged with the first shell wall (14) to mount the cooler in place, and the outlet section temperature sensor (2) is fixed on the mounting plate (3).

3. The cooler according to claim 2, characterized in that The mounting plate (3) is provided with a mounting hole (31) for the outlet section temperature sensor (2) to pass through, and an annular mounting seat (4) is provided on the periphery of the mounting hole. The outlet section temperature sensor is mounted in the mounting seat in a liquid-tight manner relative to the mounting seat (4).

4. The cooler according to claim 1, characterized in that The outlet section flow channel (11) extends straight between its closed end and the coolant outlet (151), so that its closed end and the coolant outlet are opposite to each other.

5. The cooler according to claim 4, characterized in that The temperature measuring probe of the outlet section temperature sensor (2) extends parallel to the outlet section flow channel (11), and the length of the temperature measuring probe extending into the outlet section flow channel is less than one third of the total length of the outlet section flow channel.

6. The cooler according to any one of claims 1 to 5, characterized in that The inlet section flow channel (12) has an open end connected to the coolant inlet (152) of the cooler core and a closed end closed by the first shell wall (14). The cooler also includes an inlet section temperature sensor (5) installed on the cooler core. The temperature measuring probe of the inlet section temperature sensor passes through the closed end of the inlet section flow channel (12) and extends into the inlet section flow channel to measure the temperature of the coolant in the inlet section flow channel before heat exchange.

7. The cooler according to claim 6, characterized in that The cooler core (1) is provided with a refrigerant inlet and a refrigerant outlet (153) on its second shell wall (15) arranged opposite to the first shell wall (14), and the cooler also includes an expansion valve (7) arranged at the refrigerant inlet and refrigerant outlet and connected to the refrigerant inlet and refrigerant outlet.

8. The cooler according to claim 7, characterized in that The outer periphery of the expansion valve (7) and / or the cooler core (1) is coated with a heat insulation layer.

9. The cooler according to claim 7, characterized in that The cooler core comprises a plurality of corrugated heat exchange plates (16) stacked between the first shell wall (14) and the second shell wall (15) to define the plurality of heat exchange section flow channels (13), the outlet section flow channel (11) and the inlet section flow channel (12) respectively extending from the coolant outlet (151) and the coolant inlet (152) provided on the second shell wall of the cooler core perpendicularly to and through the plurality of corrugated heat exchange plates (16) to their respective closed ends.

10. A battery thermal management system, characterized in that A cooler according to any one of claims 1 to 9 comprising a battery and the cooler being in communication with the battery via a cooling fluid to cool the battery.

11. A working machine, characterized in that The device comprises the cooler according to any one of claims 1 to 9 or the battery thermal management system according to claim 10.

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