Thermal management component and battery pack

Abstract

The utility model discloses a thermal management component and a battery pack, the thermal management component has a first direction and a second direction which are intersected, the thermal management component comprises a body part, a first confluence part, a second confluence part and a plugging piece, and the first confluence part and the second confluence part are respectively connected to two ends of the body part along the second direction; the heat management component is provided with a medium inlet and a medium outlet, the medium inlet is formed in one of the first confluence part and the second confluence part, and the medium outlet is formed in one of the first confluence part and the second confluence part; the body part is provided with a plurality of medium flow channels and a plurality of non-medium flow channel cavities, the medium flow channels and the non-medium flow channel cavities extend in the second direction, the medium flow channels and the non-medium flow channel cavities are arranged in the first direction, and the medium flow channels communicate with the medium inlet and the medium outlet; one end of the non-medium flow channel cavity in the second direction is provided with a plugging piece, and the other end is open. According to the heat management component, the self weight can be reduced, and the cost is lower.

Description

Technical Field

[0001] The present application belongs to the field of battery technology, and specifically relates to a thermal management component and a battery pack. Background Art

[0002] In the prior art, a thermal management component connects a medium inlet and a medium outlet through a medium flow channel so that the medium flow channel can accommodate a fluid medium to regulate the temperature of the battery. In terms of reducing the weight of the thermal management component, both ends of a portion of the medium flow channels in the thermal management component are blocked to prevent the fluid medium from entering the portion of the medium flow channels, thereby reducing the weight of the thermal management component.

[0003] However, although the technical means adopted in the prior art can reduce the weight of the thermal management components, since both ends of the medium flow channel are blocked, the liquid cooling plate will use a lot of materials, the cost will be high, and the production process will be more complicated. Utility Model Content

[0004] The present application aims to provide a thermal management component and a battery pack, which at least solves the problem of high cost of the technical means adopted in the prior art.

[0005] In order to solve the above technical problems, this application is implemented as follows:

[0006] In a first aspect, an embodiment of the present application provides a thermal management component having a first direction and a second direction intersecting each other, the thermal management component comprising a main body, a first confluence portion, a second confluence portion and a blocking member, wherein the first confluence portion and the second confluence portion are respectively connected to two ends of the main body along the second direction;

[0007] The heat management component has a medium inlet and a medium outlet, the medium inlet is provided at one of the first confluence portion and the second confluence portion, and the medium outlet is provided at one of the first confluence portion and the second confluence portion;

[0008] The main body has a plurality of medium flow channels and a plurality of non-medium flow channel cavities, the medium flow channels and the non-medium flow channel cavities both extend along the second direction, the plurality of medium flow channels and the plurality of non-medium flow channel cavities are arranged along the first direction, the medium flow channels communicate with the medium inlet and the medium outlet, the blocking member is provided at one end of the non-medium flow channel cavity along the second direction, and the other end is open.

[0009] Optionally, the first confluence portion is provided with a first cavity, and the second confluence portion is provided with a second cavity;

[0010] The plurality of medium flow channels include a first flow channel, a second flow channel and a third flow channel arranged along the first direction;

[0011] The first flow channel connects the medium inlet and the second cavity, the second flow channel connects the second cavity and the first cavity, and the third flow channel connects the first cavity and the medium outlet.

[0012] Optionally, the plurality of non-medium flow channel cavities include at least one first cavity, and along the first direction, the first cavity is located between the first flow channel and the second flow channel, and one end of the first cavity along the second direction is provided with the blocking member to be separated from the medium inlet, and the other end is connected to the second cavity.

[0013] Optionally, a first chamber is provided in the first confluence portion, and the first chamber and the first cavity are arranged spaced apart from each other along the first direction; wherein

[0014] The medium inlet is in communication with the first chamber;

[0015] One end of the first flow channel along the second direction is connected to the first chamber;

[0016] The blocking member provided on the first cavity is located on a side of the first cavity facing the first chamber, and is used to separate the first cavity from the first chamber.

[0017] Optionally, the plurality of non-medium flow channel cavities further include at least one second cavity, and along the first direction, the second cavity is located between the second flow channel and the third flow channel, and one end of the second cavity along the second direction is provided with the blocking member to be separated from the medium outlet, and the other end is connected to the first cavity.

[0018] Optionally, a second chamber is provided in the second confluence portion, and the second chamber and the second cavity are arranged spaced apart from each other along the first direction; wherein,

[0019] The medium outlet is in communication with the second chamber;

[0020] One end of the third flow channel along the second direction is connected to the second chamber;

[0021] The blocking member provided on the second cavity is located on a side of the second cavity facing the second chamber, and is used to separate the second cavity from the second chamber.

[0022] Optionally, along the second direction and on a plane perpendicular to the second direction, a projection of the medium inlet and a projection of the medium outlet are spaced apart along the first direction.

[0023] Optionally, the blocking member is detachably connected to the main body.

[0024] Optionally, along the first direction, the medium flow channels and the non-medium flow channel cavities are arranged alternately.

[0025] In the second aspect, an embodiment of the present application proposes a battery pack, comprising a case, a plurality of battery cells and the thermal management component as described above, wherein the case has a third direction, a plurality of thermal management components are arranged in the case at intervals along the third direction, at least one battery cell is arranged between two adjacent thermal management components, the thermal management component is thermally connected to the battery cell, and a plurality of the thermal management components are interconnected.

[0026] Optionally, the box body has a height direction, the height direction of the box body is parallel to the first direction of the thermal management component, and the height of the medium inlet in the height direction is higher than the height of the medium outlet in the height direction.

[0027] In the embodiment of the present application, a plurality of medium flow channels and a plurality of non-medium flow channel cavities are provided in the main body, wherein the medium flow channels are respectively connected with the medium inlet and the medium outlet of the thermal management component, so that the fluid medium entering from the medium inlet can flow to the medium outlet through the medium flow channels in the main body, and then the main body is used to exchange heat with the battery to achieve the effect of regulating the temperature of the battery; wherein, a plugging piece is provided at one end of the non-medium flow channel cavity, and the other end is open, so that the fluid medium entering from the medium inlet cannot flow to the medium outlet through the non-medium flow channel cavity, then the fluid medium can only pass or stay at the unblocked end of the non-medium flow channel cavity, and since there is air in the non-medium flow channel cavity, the fluid medium cannot fill the non-medium flow channel cavity under the action of air resistance, which is conducive to reducing the weight of the thermal management component. Compared with the prior art, the embodiment of the present application adopts the technical solution of blocking one end of the non-medium flow channel cavity, which can not only reduce the weight of the thermal management component itself, but also reduce the fluid medium circulating in the thermal management component, and consumes less material, which is conducive to reducing costs.

[0028] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0030] Figure 1 is a schematic diagram of the external structure of a thermal management component according to an embodiment of the utility model;

[0031] Figure 2 The internal structure of the thermal management component according to the embodiment of the utility model is shown in FIG. Figure 1;

[0032] Figure 3 The internal structure of the thermal management component according to the embodiment of the utility model is shown in FIG. Figure 2 ;

[0033] Figure 4 The internal structure of the thermal management component according to the embodiment of the utility model is shown in FIG. Figure 3 ;

[0034] Figure 5 The structure explosion of the thermal management component according to the embodiment of the utility model Figure 1 ;

[0035] Figure 6 The structure explosion of the thermal management component according to the embodiment of the utility model Figure 2 ;

[0036] Figure 7 is a structural exploded diagram of a battery pack according to an embodiment of the utility model;

[0037] Figure 8 It is a schematic diagram of the positions of multiple thermal management components and multiple columns of battery cells in a battery pack according to an embodiment of the utility model.

[0038] Reference numerals:

[0039] 100-box body; 101-first box body; 102-second box body;

[0040] 200 - battery cell; 201 - first side surface;

[0041] 30-thermal management component; 31-main body; 311-medium flow channel; 3111-first flow channel; 3112-second flow channel; 3113-third flow channel; 312-non-medium flow channel cavity; 3121-first cavity; 3122-second cavity;

[0042] 32 - first confluence portion; 320 - medium inlet; 3201 - first tube body; 3202 - first through hole; 321 - first cavity; 322 - first stopper; 323 - first chamber;

[0043] 33 - second confluence portion; 330 - medium outlet; 3301 - second tube body; 3302 - second through hole; 331 - second cavity; 332 - second stopper; 333 - second chamber;

[0044] 34 - blocking piece;

[0045] X-first direction; Y-second direction;

[0046] P - height direction. DETAILED DESCRIPTION

[0047] The embodiments of the utility model will be described in detail below, and 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 only used to explain the utility model, and cannot be understood as limiting the utility model. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application.

[0048] The term "first" or "second" in the specification and claims of this application may include one or more of the features explicitly or implicitly. In the description of this utility model, unless otherwise specified, "multiple" means two or more. In addition, "and / or" in the specification and claims means at least one of the connected objects, and the character " / " generally means that the objects connected before and after are in an "or" relationship.

[0049] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0050] The term "parallel" in this application includes not only the absolute parallel situation, but also the roughly parallel situation conventionally recognized in engineering, such as "parallel" refers to the state where the angle formed by a straight line, a straight line and a plane, or a plane and a plane is -1° to 1°; at the same time, "vertical" also includes not only the absolute vertical situation, but also the roughly vertical situation conventionally recognized in engineering, such as "vertical" refers to the state where the angle formed by a straight line, a straight line and a plane, or a plane and a plane is 89° to 91°. Equal distances or equal angles include not only the absolute equal situation, but also the roughly equal situation conventionally recognized in engineering, that is, there may be a certain error, such as the state where the tolerance range is -1% to 1%.

[0051] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0052] Combine the following Figures 1 to 8 A thermal management component and a battery pack according to embodiments of the present invention are described.

[0053] In a first aspect, the present application discloses a thermal management component, such as Figures 1 to 6 As shown, the thermal management component has a first direction X and a second direction Y intersecting each other, wherein the first direction X is as shown in FIG. Figure 1 The direction indicated by the arrow X in the middle, the second direction Y is as follows Figure 1 The direction indicated by the arrow Y in the middle. The thermal management component includes a main body 31, a first confluence portion 32, a second confluence portion 33 and a blocking member 34, wherein the first confluence portion 32 and the second confluence portion 33 are respectively connected to the two ends of the main body 31 along the second direction Y. The thermal management component has a medium inlet 320 and a medium outlet 330, wherein the medium inlet 320 is for allowing the fluid medium to enter the thermal management component, and the medium outlet 330 is for allowing the fluid medium to flow out of the thermal management component, wherein the medium inlet 320 is provided at one of the first confluence portion 32 and the second confluence portion 33, and the medium outlet 330 is provided at one of the first confluence portion 32 and the second confluence portion 33, that is, the medium inlet 320 and the medium outlet 330 may be provided at the same confluence portion, or may be provided at two confluence portions respectively. Furthermore, the main body 31 has a plurality of medium flow channels 311 and a plurality of non-medium flow channel cavities 312, both of which extend along the second direction Y, and the plurality of medium flow channels 311 and the plurality of non-medium flow channel cavities 312 are arranged along the first direction X, the medium flow channels 311 connect the medium inlet 320 and the medium outlet 330, and a blocking member 34 is provided at one end of the non-medium flow channel cavity 312 along the second direction Y, and the other end is open.

[0054] According to the thermal management component of the embodiment of the utility model, a plurality of medium flow channels 311 and a plurality of non-medium flow channel cavities 312 are arranged in the main body 31, wherein the medium flow channels 311 are respectively connected with the medium inlet 320 and the medium outlet 330 of the thermal management component, so that the fluid medium entering from the medium inlet 320 can flow to the medium outlet 330 through the medium flow channels 311 in the main body 31, and then the main body 31 is used to perform heat exchange with the battery to achieve the effect of regulating the temperature of the battery; wherein one end of the non-medium flow channel cavity 312 is provided with a blocking member 34, and the other end is open, so that the fluid medium entering from the medium inlet 320 can flow to the medium outlet 330 through the medium flow channels 311 in the main body 31, and then the fluid medium entering from the medium inlet 320 can flow to the medium outlet 330, and then the main body 31 is used to perform heat exchange with the battery to achieve the effect of regulating the temperature of the battery; wherein the non-medium flow channel cavity 312 is provided with a blocking member 34 at one end, and the other end is open, so that the fluid medium entering from the medium inlet 320 can flow to the medium outlet 330 through the medium flow channels 311 in the main body 31, and then the fluid medium entering from the medium inlet 320 can flow to the medium outlet 330 ... 0 The fluid medium entering the non-medium flow channel cavity 312 cannot flow to the medium outlet 330, so the fluid medium can only pass or stay at the unblocked end of the non-medium flow channel cavity 312. Since there is air in the non-medium flow channel cavity 312, and air and the fluid medium are generally insoluble or slightly soluble, the fluid medium cannot fill the non-medium flow channel cavity 312 under the action of air resistance, which is conducive to reducing the weight of the thermal management component. In addition, in this solution, only one end of the non-medium flow channel cavity 312 is blocked, which can reduce the number of blocking parts 34, thereby further reducing the weight of the thermal management component itself. Compared with the prior art, the embodiment of the present application adopts a technical solution of blocking one end of the non-medium flow channel cavity 312, which can not only reduce the weight of the thermal management component, but also consume less material, have a better weight reduction effect, and help reduce costs.

[0055] Specifically, Figure 2 As shown, the first confluence portion 32 is provided with a first cavity 321, and the second confluence portion 33 is provided with a second cavity 331; the plurality of medium flow channels 311 include a first flow channel 3111, a second flow channel 3112 and a third flow channel 3113 arranged along the first direction X; the first flow channel 3111 connects the medium inlet 320 and the second cavity 331, the second flow channel 3112 connects the second cavity 331 and the first cavity 321, and the third flow channel 3113 connects the first cavity 321 and the medium outlet 330. By setting the first flow channel 3111, the second flow channel 3112 and the third flow channel 3113 in the main body 31 as the medium flow channel 311, and setting the first cavity 321 in the first confluence portion 32 and the second cavity 331 in the second confluence portion 33 to cooperate with the first flow channel 3111, the second flow channel 3112 and the third flow channel 3113, an S-shaped flow channel for the flow of fluid medium is formed in the thermal management component. During the flow of the fluid medium in the S-shaped flow channel, the air in the flow channel will be squeezed into the non-medium flow channel cavity 312, and the air resistance in the non-medium flow channel cavity 312 will increase. To a certain extent, the fluid medium entering the non-medium flow channel cavity 312 can be reduced, which is beneficial to reducing the weight of the thermal management component.

[0056] Specifically, the flow path of the fluid medium in the thermal management component in the above-mentioned S-shaped flow channel is as follows: the fluid medium can flow into the first flow channel 3111 from the medium inlet 320 and flow along the second direction Y, then flow into the second cavity 331 and flow along the first direction X, enter the second flow channel 3112 through the second cavity 331 and flow along the second direction Y, then flow into the first cavity 321 and flow along the first direction X, enter the third flow channel 3113 through the first cavity 321 and flow along the second direction Y, flow to the medium outlet 330, and flow out through the medium outlet 330.

[0057] Further, the plurality of non-medium flow channel cavities 312 include at least one first cavity 3121. The first cavity 3121 is located between the first flow channel 3111 and the second flow channel 3112 along the first direction X. A blocking member 34 is provided at one end of the first cavity 3121 along the second direction Y to separate it from the medium inlet 320, and the other end is connected to the second cavity 331, that is, the open end of the first cavity 3121 is connected to the second cavity 331. Through the structural setting of the first cavity 3121, when the fluid medium flows in the S-shaped flow channel, specifically when the fluid medium in the first flow channel 3111 flows into the second flow channel 3112 via the second cavity 331, most of the air in the first flow channel 3111 and the second cavity 331 will be squeezed into the first cavity 3121, so that the air resistance in the first cavity 3121 is increased, thereby reducing the fluid medium entering the first cavity 3121, thereby reducing the weight of the thermal management component.

[0058] Optionally, a first chamber 323 is provided in the first confluence portion 32, and the first chamber 323 and the first cavity 321 are arranged to be spaced apart along the first direction X, and the first chamber 323 and the first cavity 321 can be separated by a first stopper 322. The medium inlet 320 is connected to the first chamber 323; the orthographic projection of the first chamber 323 in the second direction Y and the orthographic projection of the second cavity 331 in the second direction Y at least partially overlap, one end of the first flow channel 3111 along the second direction Y is connected to the first chamber 323, and the other end of the first flow channel 3111 along the second direction Y is connected to the second cavity 331; the blocking member 34 provided on the first cavity 3121 is located at one end of the first cavity 3121 facing the first cavity 323, and is used to separate the first cavity 3121 from the first cavity 323, and one end of the first cavity 3121 away from the first cavity 323 is connected to the second cavity 331. By arranging the first chamber 323 separated from the first cavity 321 in the first confluence portion 32, a buffering effect can be exerted on the fluid medium entering the main body portion 31 from the medium inlet 320; at the same time, by arranging the blocking member 34 arranged on the first cavity 3121 on the side of the first cavity 3121 facing the first chamber 323, it is possible to avoid the fluid medium in the first cavity 323 from being directly poured into the first cavity 3121, but to flow into the first flow channel 3111, and with the help of the flow of the fluid medium, the air in the first cavity 323 is squeezed into the second cavity 331 along the first flow channel 3111, thereby further increasing the air resistance in the first cavity 3121.

[0059] Optionally, the plurality of non-medium flow channel cavities 312 include at least one second cavity 3122, and the second cavity 3122 is located between the second flow channel 3112 and the third flow channel 3113 along the first direction X. A blocking member 34 is provided at one end of the second cavity 3122 along the second direction Y to separate it from the medium outlet 330, and the other end is connected to the first cavity 321, that is, the open end of the second cavity 3122 is connected to the first cavity 321. Through the structural setting of the second cavity 3122, when the fluid medium flows in the above-mentioned S-shaped flow channel, specifically when the fluid medium in the second flow channel 3112 flows into the third flow channel 3113 via the first cavity 321, part of the air in the second cavity 331, the second flow channel 3112 and the first cavity 321 will be squeezed into the second cavity 3122, so that the air resistance in the second cavity 3122 is increased, thereby reducing the fluid medium entering the second cavity 3122, thereby achieving the effect of reducing the weight of the thermal management component.

[0060] Optionally, a second chamber 333 is provided in the second confluence portion 33, and the second chamber 333 and the second cavity 331 are arranged to be spaced apart along the first direction X, and the second chamber 333 and the second cavity 331 can be separated by a second stopper 332. The medium outlet 330 is in communication with the second chamber 333; the orthographic projection of the second chamber 333 in the second direction Y at least partially overlaps with the orthographic projection of the first cavity 321 in the second direction Y; one end of the third flow channel 3113 in the second direction Y is in communication with the second chamber 333, and the other end of the third flow channel 3113 in the second direction Y is in communication with the first cavity 321; the blocking member 34 provided on the second cavity 3122 is located at one end of the second cavity 3122 facing the second cavity 333, and is used to separate the second cavity 3122 from the second cavity 333; and one end of the second cavity 3122 away from the second cavity 333 is in communication with the first cavity 321. By arranging a second chamber 333 separated from the second cavity 331 in the second confluence portion 33, a buffering effect can be exerted on the fluid medium flowing from the main body 31 to the medium outlet 330; at the same time, by arranging the sealing member 34 arranged on the second cavity 3122 on the side of the second cavity 3122 facing the second cavity 333, the fluid medium buffered in the second cavity 333 can be prevented from flowing back into the second cavity 3122.

[0061] According to some other embodiments of the present invention, the medium flow channels 311 and the non-medium flow channel cavities 312 are arranged alternately along the first direction X. By arranging the medium flow channels 311 and the non-medium flow channel cavities 312 alternately, the fluid medium in the thermal management component can be distributed relatively evenly, so that the cooling effect on the battery is more stable.

[0062] Optionally, the plurality of non-medium flow channel cavities 312 may include the above-mentioned first cavity 3121 and second cavity 3122. The specific structural arrangement of the first cavity 3121 and the second cavity 3122 is the same as that described above, that is, along the first direction X, the first cavity 3121 is located between the first flow channel 3111 and the second flow channel 3112, one end of the first cavity 3121 along the second direction Y is provided with a blocking member 34 to be separated from the medium inlet 320, and the other end is connected to the second cavity 331; along the first direction X, the second cavity 3122 is located between the second flow channel 3112 and the third flow channel 3113, one end of the second cavity 3122 along the second direction Y is provided with a blocking member 34 to be separated from the medium outlet 330, and the other end is connected to the first cavity 321. The main body 31 is provided with a first cavity 3121 and a second cavity 3122 at the same time, so that along the first direction X, the medium flow channel 311 and the non-medium flow channel cavity 312 are arranged alternately, so that the fluid medium in the thermal management component can be distributed relatively evenly, so as to have a more stable cooling effect on the battery.

[0063] Alternatively, if Figure 3 and Figure 5As shown, a first tube body 3201 is provided on the first confluence portion 32, and two ends of the first tube body 3201 are located outside the first confluence portion 32, at least a portion of the first tube body 3201 is accommodated in the first chamber 323, and a first through hole 3202 is provided through the first tube body 3201 accommodated in the first chamber 323 to form a medium inlet 320, thereby realizing the injection of fluid medium into the first chamber 323 through the two ends of the first tube body 3201.

[0064] Alternatively, if Figure 4 and Figure 6 As shown, a second tube body 3301 is provided on the second confluence portion 33, and both ends of the second tube body 3301 are located outside the second confluence portion 33. At least part of the second tube body 3301 is accommodated in the second chamber 333, and a second through hole 3302 is penetrated through the second tube body 3301 accommodated in the second chamber 333 to form a medium outlet 330.

[0065] Optionally, the blocking member 34 is detachably connected to the main body 31 to facilitate maintenance and replacement of the blocking member 34 . Meanwhile, after the blocking member 34 is removed from the main body 31 , the non-medium flow channel cavity 312 can be used as the medium flow channel 311 .

[0066] Optionally, the blocking member 34 and the main body 31 are integrally formed, so that the blocking member 34 and the main body 31 are firmly connected.

[0067] Optionally, the non-medium flow channel cavity 312 is filled with a filler, and the density of the filler is less than the material density of the main body 31. Part of the non-medium flow channel cavity 312 in the main body 31 can be filled with low-density material, and the fluid medium cannot enter the non-medium flow channel cavity 312 filled with low-density material, thereby better blocking the fluid medium from entering the non-medium flow channel cavity 312, further reducing the weight of the thermal management component. Among them, the density of the filler refers to the density of the material used to make the filler, and the density of the main body 31 refers to the density of the material used to make the main body 31.

[0068] Optionally, along the second direction Y on a plane perpendicular to the second direction Y, the projection of the medium inlet 320 and the projection of the medium outlet 330 are spaced apart along the first direction X. When the thermal management component is used, the first direction X of the thermal management component is arranged parallel to the gravity direction, so that a height difference is formed between the medium inlet 320 and the medium outlet 330 in the gravity direction, and under the action of gravity and the air resistance inside the non-medium flow channel cavity 312, it is difficult for the fluid medium to enter the non-medium flow channel cavity 312.

[0069] Optionally, along the thickness direction of the main body 31, the area of ​​the orthographic projection of the main body 31 in the second direction Y is S1, and the total area of ​​the orthographic projection of the plurality of medium flow channels 311 in the second direction Y is S2, wherein S2 / S1≥0.2, which can reduce the phenomenon of poor heat exchange capacity caused by the medium flow channels 311 occupying too little space in the main body 31, thereby ensuring the heat exchange performance of the thermal management component.

[0070] In a second aspect, the present application also discloses a battery pack, such as Figure 7 and Figure 8 As shown, the battery pack includes a box body 100, a plurality of battery cells 200, and a plurality of the above-mentioned thermal management components 30, the box body 100 has a third direction Z, a plurality of thermal management components are arranged in the box body 100 at intervals along the third direction Z, at least one battery cell 200 is arranged between two adjacent thermal management components, the thermal management components are thermally connected to the battery cells 200, and the plurality of thermal management components are connected, wherein the first direction X, the second direction Y and the third direction Z intersect each other, and preferably, the first direction X, the second direction Y and the third direction Z are perpendicular to each other. The battery pack of this embodiment uses the above-mentioned thermal management component 30, which is beneficial to improving the thermal management capability of the battery pack itself and reducing the safety hazards caused by the internal temperature rise of the battery pack, and can also effectively control the overall weight of the battery pack on the other hand.

[0071] The plurality of battery cells 200 may form a plurality of battery columns, and the plurality of battery columns and the plurality of thermal management components are alternately arranged in the third direction Z.

[0072] In addition, a plurality of heat management components may be connected in parallel or in series through the first tube body 3201 and the second tube body 3301 .

[0073] Optionally, the housing 100 has a height direction P, the height direction P of the housing 100 is parallel to the first direction X of the thermal management component, and the height of the medium inlet 320 in the height direction P is higher than the height of the medium outlet 330 in the height direction P. By arranging the medium inlet 320 higher than the medium outlet 330 in the height direction P, the fluid medium enters the thermal management component 30 from a higher horizontal position and flows out of the thermal management component 30 from a lower horizontal position, and then under the action of gravity and the air resistance inside the non-medium flow channel cavity 312, it is difficult for the fluid medium to enter the non-medium flow channel cavity 312, further reducing the probability of the fluid medium entering the non-medium flow channel cavity 312, thereby reducing the weight of the battery pack.

[0074] Optionally, when multiple thermal management components 30 are connected in series, the medium outlet 330 of one thermal management component 30 is connected to the medium inlet 320 of another thermal management component 30. The above arrangement facilitates assembly and processing, and can facilitate the injection of fluid medium into the medium flow channels 311 of multiple thermal management components 30 during use.

[0075] Optionally, when multiple thermal management components 30 are connected in series, the thermal management components 30 have multiple medium flow channels 311. Along the flow direction of the fluid medium in the medium flow channels 311 of the multiple thermal management components 30, in two adjacent thermal management components 30, the number of medium flow channels 311 in the downstream thermal management component 30 is M1, and the number of medium flow channels 311 in the upstream thermal management component 30 is M2, wherein M1>M2. The above arrangement is conducive to improving the heat exchange capacity of the downstream thermal management component 30, thereby ensuring that the heat exchange capacities of the multiple thermal management components 30 are balanced with each other, so as to improve the thermal management capacity of the battery pack itself, thereby effectively alleviating the phenomenon of local temperature rise inside the battery pack.

[0076] Optionally, when multiple thermal management components 30 are connected in parallel, the medium inlets 320 of the multiple thermal management components 30 are interconnected, and the medium outlets 330 of the multiple thermal management components 30 are interconnected. The above arrangement can realize the function of injecting fluid medium into the medium flow channels 311 of multiple thermal management components 30 at the same time, and can effectively ensure the balance of heat exchange capacity of each thermal management component 30.

[0077] Optionally, the battery cell 200 has a first side surface 201, which is the surface with the largest area among the outer surfaces of the battery cell 200. The first side surface 201 is close to the thermal management component 30, thereby ensuring that the battery cell 200 and the thermal management component 30 have sufficient heat exchange area, which is beneficial to improving the thermal management capability of the battery pack itself.

[0078] Optionally, the box body 100 includes a first box body 101 and a second box body 102 , the first box body 101 and the second box body 102 cover each other, and the first box body 101 and the second box body 102 jointly define an assembly space for accommodating the battery cells 200 .

[0079] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0080] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A thermal management component having a first direction (X) and a second direction (Y) intersecting each other, characterized in that: The heat management component comprises a main body (31), a first confluence portion (32), a second confluence portion (33) and a blocking member (34); the first confluence portion (32) and the second confluence portion (33) are respectively connected to two ends of the main body (31) along the second direction (Y); The heat management component comprises a medium inlet (320) and a medium outlet (330), wherein the medium inlet (320) is arranged at one of the first confluence portion (32) and the second confluence portion (33), and the medium outlet (330) is arranged at one of the first confluence portion (32) and the second confluence portion (33); The main body (31) comprises a plurality of medium flow channels (311) and a plurality of non-medium flow channel cavities (312); the medium flow channels (311) and the non-medium flow channel cavities (312) both extend along the second direction (Y); the plurality of medium flow channels (311) and the plurality of non-medium flow channel cavities (312) are arranged along the first direction (X); the medium flow channels (311) are connected to the medium inlet (320) and the medium outlet (330); one end of the non-medium flow channel cavity (312) along the second direction (Y) is provided with the blocking member (34), and the other end is open.

2. The thermal management component according to claim 1, characterized in that: The first confluence portion (32) is provided with a first cavity (321), and the second confluence portion (33) is provided with a second cavity (331); The plurality of medium flow channels (311) include a first flow channel (3111), a second flow channel (3112), and a third flow channel (3113) arranged along the first direction (X); The first flow channel (3111) connects the medium inlet (320) and the second cavity (331), the second flow channel (3112) connects the second cavity (331) and the first cavity (321), and the third flow channel (3113) connects the first cavity (321) and the medium outlet (330).

3. The thermal management component according to claim 2, characterized in that: The plurality of non-medium flow channel cavities (312) include at least one first cavity (3121); along the first direction (X), the first cavity (3121) is located between the first flow channel (3111) and the second flow channel (3112); one end of the first cavity (3121) along the second direction (Y) is provided with the blocking member (34) to be separated from the medium inlet (320); and the other end is connected to the second cavity (331).

4. The thermal management component according to claim 3, characterized in that: A first chamber (323) is provided in the first confluence portion (32), and the first chamber (323) and the first cavity (321) are arranged spaced apart from each other along the first direction (X); The medium inlet (320) is in communication with the first chamber (323); One end of the first flow channel (3111) along the second direction (Y) is in communication with the first chamber (323); The blocking member (34) provided on the first cavity (3121) is located on a side of the first cavity (3121) facing the first chamber (323) and is used to separate the first cavity (3121) from the first chamber (323).

5. The thermal management component according to claim 2, characterized in that: The plurality of non-medium flow channel cavities (312) further include at least one second cavity (3122); along the first direction (X), the second cavity (3122) is located between the second flow channel (3112) and the third flow channel (3113); one end of the second cavity (3122) along the second direction (Y) is provided with the blocking member (34) to be separated from the medium outlet (330); and the other end is connected to the first cavity (321).

6. The thermal management component according to claim 5, characterized in that: A second chamber (333) is provided in the second confluence portion (33), and the second chamber (333) and the second cavity (331) are arranged spaced apart from each other along the first direction (X); wherein: The medium outlet (330) is in communication with the second chamber (333); One end of the third flow channel (3113) along the second direction (Y) is connected to the second chamber (333); The blocking member (34) provided on the second cavity (3122) is located on a side of the second cavity (3122) facing the second chamber (333), and is used to separate the second cavity (3122) and the second chamber (333).

7. The thermal management component according to any one of claims 1 to 6, characterized in that: Along the second direction (Y) and on a plane perpendicular to the second direction (Y), a projection of the medium inlet (320) and a projection of the medium outlet (330) are arranged at intervals along the first direction (X).

8. The thermal management component according to any one of claims 1 to 6, characterized in that: The blocking member (34) is detachably connected to the main body (31).

9. The thermal management component according to claim 1, characterized in that: Along the first direction (X), the medium flow channels (311) and the non-medium flow channel cavities (312) are arranged alternately.

10. The thermal management component according to claim 1, characterized in that: The non-medium flow channel cavity (312) is filled with a filling piece, and the material density of the filling piece is lower than the material density of the main body (31).

11. A battery pack, characterized in that: The invention comprises a housing (100), a plurality of battery cells (200) and a plurality of thermal management components according to any one of claims 1 to 10, wherein the housing (100) has a third direction (Z), a plurality of thermal management components are arranged in the housing (100) at intervals along the third direction (Z), at least one of the battery cells (200) is arranged between two adjacent thermal management components, the thermal management components are thermally connected to the battery cells (200), and a plurality of the thermal management components are connected, and the third direction (Z) intersects with the first direction (X) and the second direction (Y) in pairs.

12. The battery pack according to claim 11, characterized in that: The housing (100) has a height direction (P), the height direction (P) of the housing (100) is parallel to the first direction (X) of the thermal management component, and the height of the medium inlet (320) in the height direction (P) is higher than the height of the medium outlet (330) in the height direction (P).

Images