Heat exchange piece

Abstract

The utility model discloses a heat exchange piece which comprises a heat exchange clamping plate and a heat exchange side plate which are used for cooling a module, the heat exchange clamping plate is fixedly connected with the heat exchange side plate, heat exchange channels are arranged in the heat exchange clamping plate and the heat exchange side plate, and the heat exchange clamping plate is communicated with the heat exchange channel of the heat exchange side plate. The inner leakage risk of heat exchange liquid is reduced, the assembling difficulty of the battery pack is reduced, and meanwhile the mass energy density of the battery pack is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of batteries, in particular to a heat exchange component. Background Art

[0002] In order to meet the requirements of electric vehicle range, the energy density of single cells used in electric vehicles continues to rise. The increase in battery energy density leads to an increase in the thermal load of the battery pack, and the battery thermal management design has evolved from single-sided cooling of the battery module to three-dimensional multi-sided cooling. The existing technology usually dissipates heat through the bottom liquid cooling plate and the liquid cooling plate sandwiched between the modules. The bottom liquid cooling plate and the liquid cooling plate between the modules are connected through external pipes, and there is a risk of leakage at the external pipes. Utility Model Content

[0003] In order to overcome the shortcomings and deficiencies in the prior art, the purpose of the utility model is to provide a heat exchange component to reduce the risk of internal leakage of the heat exchange fluid, reduce the difficulty of battery pack assembly, and at the same time improve the mass energy density of the battery pack.

[0004] The purpose of the utility model is achieved through the following technical solutions:

[0005] A heat exchange component comprises a heat exchange clamping plate and a heat exchange side plate for a cooling module, wherein the heat exchange clamping plate is fixedly connected to the heat exchange side plate, and heat exchange channels are provided in the heat exchange clamping plate and the heat exchange side plate, and the heat exchange channels of the heat exchange clamping plate and the heat exchange side plate are interconnected.

[0006] In one embodiment, the heat exchange clamping plate and the heat exchange side plate are connected by welding.

[0007] In one embodiment, the heat exchange clamp is used to be arranged between adjacent modules, the heat exchange side plate is arranged on the same side of each module, and the heat exchange component also includes an outer clamp, which is fixedly connected to the heat exchange side plate and arranged opposite to the heat exchange clamp, and the outer clamp is located on the outside of the outermost module. The outer clamp is also provided with a heat exchange channel, and the heat exchange channels of the outer clamp and the heat exchange side plate are interconnected.

[0008] In one embodiment, the heat exchange clamp plate, the heat exchange side plate and the outer clamp plate are all provided with ribs for forming the heat exchange channels inside each other; the ribs of the heat exchange clamp plate and the ribs of the heat exchange side plate are connected one-to-one, and the ribs of the outer clamp plate and the ribs of the heat exchange side plate are connected one-to-one.

[0009] In one embodiment, the ribs of the heat exchange clamping plate and the outer clamping plate are parallel, and the ribs of the heat exchange side plate are parallel.

[0010] In one embodiment, among the ribs of the heat exchange side plate, a plurality of first liquid inlet channels are formed on one side of the rib located in the middle, and a plurality of first liquid outlet channels are formed on the other side of the rib located in the middle; among the ribs of the heat exchange splint, a plurality of second liquid inlet channels are formed on one side of the rib located in the middle, and a plurality of second liquid outlet channels are formed on the other side of the rib located in the middle; the plurality of first liquid inlet channels are connected one-to-one with the plurality of second liquid inlet channels of the heat exchange splint, and the plurality of first liquid outlet channels are connected one-to-one with the plurality of second liquid outlet channels of the heat exchange splint; among the ribs of the outer splint, a plurality of third liquid inlet channels are formed on one side of the rib located in the middle, and a plurality of third liquid outlet channels are formed on the other side of the rib located in the middle; the plurality of first liquid inlet channels are connected one-to-one with the plurality of third liquid inlet channels of the outer splint, and the plurality of first liquid outlet channels are connected one-to-one with the plurality of third liquid outlet channels of the outer splint.

[0011] In one embodiment, the heat exchange side plate is provided with a liquid inlet and a liquid outlet for heat exchange liquid to enter and exit the heat exchange element; along the length direction of the ribs of the heat exchange side plate, a plurality of the first liquid inlet channels are connected at one end thereof, a plurality of the first liquid outlet channels are connected at one end close to the connection point of the plurality of the first liquid inlet channels, the liquid inlet is arranged at a position where the plurality of the first liquid inlet channels are connected, and the liquid outlet is arranged at a position where the plurality of the first liquid outlet channels are connected; along the length direction of the ribs of the heat exchange clamping plate, a plurality of the second liquid inlet channels and a plurality of the second liquid outlet channels are arranged at a position away from the heat exchange One end of the side plate is connected; along the length direction of the rib of the outer splint, the plurality of third liquid inlet channels are connected with the plurality of third liquid outlet channels at the end away from the heat exchange side plate; the plurality of second liquid inlet channels of the heat exchange splint are connected with the plurality of first liquid inlet channels one-to-one, and the plurality of second liquid outlet channels of the heat exchange splint are connected with the plurality of first liquid outlet channels one-to-one; the plurality of third liquid inlet channels of the outer splint are connected with the plurality of first liquid inlet channels one-to-one, and the plurality of third liquid outlet channels of the outer splint are connected with the plurality of first liquid outlet channels one-to-one.

[0012] In one embodiment, the heat exchange clamping plate comprises a glue conducting channel, and the glue conducting channel is used to conduct glue to the gap between the heat exchange clamping plate and the module.

[0013] In one embodiment, the glue conducting channel includes a first channel and a second channel, the first channel is connected to the second channel, the first channel has a first glue conducting direction, the second channel has a second glue conducting direction, and the first glue conducting direction intersects with the second glue conducting direction.

[0014] In one embodiment, the heat exchange clamp has a thickness direction, and a rib for forming the heat exchange channel is provided in the heat exchange clamp, the first channel is arranged at the rib, and along the thickness direction of the heat exchange clamp, the first channel runs through the heat exchange clamp; the second channel is arranged on the surface of the heat exchange clamp, and along the thickness direction of the heat exchange clamp, the size of the second channel is smaller than the size of the first channel.

[0015] In one embodiment, the first channel has a width W1, and the second channel has a width W2, where W2≤W1.

[0016] In one embodiment, the first channel is connected to a plurality of the second channels, and the plurality of the second channels connected to the first channel are arranged in sequence along the first glue guiding direction.

[0017] In one embodiment, the heat exchange clamp has a thickness direction, and a side end of the heat exchange clamp parallel to the thickness direction is provided with a glue injection port, and the glue injection port is connected to the first channel.

[0018] In one embodiment, the first channel is connected to a plurality of the second channels, and the plurality of the second channels connected to the first channel are arranged in sequence along the first glue guiding direction; along the first glue guiding direction, the glue injection port is connected to one end of the first channel, and among the plurality of the second channels connected to the first channel, the length of the second channel that is close to the glue injection port in the second glue guiding direction is less than or equal to the length of the second channel that is far from the glue injection port in the second glue guiding direction.

[0019] The beneficial effects of the utility model are as follows: the heat exchange splint and the heat exchange side plate are directly fixedly connected, avoiding the need to set up additional pipes for connecting their respective heat exchange channels due to the spacing between the heat exchange splint and the heat exchange side plate, reducing the risk of internal leakage of the heat exchange fluid, reducing the difficulty of battery pack assembly, reducing the amount of thermal conductive adhesive used, reducing costs in terms of materials and labor, and improving the mass energy density of the battery pack; in addition, in an accident state, the directly fixedly connected heat exchange splint and heat exchange side plate can effectively block the spread of thermal runaway between different modules and reduce losses; and the heat exchange splint and the heat exchange side plate are directly fixedly connected, which improves energy density and structural compactness, reduces the amount of thermal conductive adhesive used, and reduces the weight of the heat exchange component. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0021] Figure 1 It is a three-dimensional structural schematic diagram of a heat exchanger of an embodiment of the utility model;

[0022] Figure 2 yes Figure 1 A schematic diagram of the flow direction of the heat exchange fluid in the heat exchange flow channel;

[0023] Figure 3 yes Figure 1 A partial enlarged view of the heat exchange plate at F;

[0024] Figure 4 yes Figure 2 A local enlarged view at G;

[0025] Figure 5 yes Figure 1 Front view at the heat exchange clamping plate;

[0026] Figure 6 yes Figure 5 Section along AA;

[0027] Figure 7 yes Figure 5 Section along BB;

[0028] Figure 8 yes Figure 5 Section along CC;

[0029] Fig. 9 yes Figure 5 Section along EE;

[0030] Fig.10 It is a schematic diagram of the three-dimensional structure of a box body in which a heat exchange component is installed in a battery pack;

[0031] Fig.11 It is a side view of the heat exchanger and module after assembly and injection of glue.

[0032] In the figure: 1. heat exchange component; 11. heat exchange splint; 111. glue guide channel; 1111. first channel; 1112. second channel; 112. glue injection port; 12. heat exchange side plate; 121. liquid inlet; 122. liquid outlet; 13. outer splint; 14. rib; S. heat exchange channel; S1. first liquid inlet channel; S2. first liquid outlet channel; S3. second liquid inlet channel; S4. second liquid outlet channel; S5. third liquid inlet channel; S6. third liquid outlet channel; 2. seal; 3. module; 4. thermal conductive glue; 5. box body. DETAILED DESCRIPTION

[0033] The following will describe in detail a specific embodiment of the utility model in conjunction with the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the utility model, rather than all the embodiments. Based on the description of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0034] In the description of the present utility model, unless otherwise clearly specified and limited, the terms "set", "install", "connection" and the like 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 an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

[0035] The directions or positional relationships indicated by terms such as "upper", "lower", "left", "right", "front", "back", "top", "bottom", "inside" and "outside" are based on the directions or positional relationships shown in the accompanying drawings, or are the directions or positional relationships in which the utility model product is usually placed when in use. They are only for the convenience of description and simplified description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the utility model.

[0036] The terms "first", "second", "third" and the like are merely used to distinguish elements of similar nature, and do not indicate or imply relative importance or a particular order.

[0037] The terms "comprises," "comprising," or any other variations thereof, are intended to cover a non-exclusive inclusion of the elements listed and may also include additional elements not expressly listed.

[0038] The utility model provides a heat exchange element 1, such as Figure 1 , Figure 2 and Fig.11 As shown, it includes a heat exchange clamp plate 11 and a heat exchange side plate 12 for cooling the module 3. The heat exchange clamp plate 11 is fixedly connected to the heat exchange side plate 12. Heat exchange channels S are provided in the heat exchange clamp plate 11 and the heat exchange side plate 12. The heat exchange channels S of the heat exchange clamp plate 11 and the heat exchange side plate 12 are interconnected.

[0039] In this embodiment, the heat exchange clamp 11 is fixedly connected to the heat exchange side plate 12, that is, the two are directly connected, avoiding the need to set up additional pipes for connecting their respective heat exchange channels S due to the gap between the heat exchange clamp 11 and the heat exchange side plate 12, reducing the risk of internal leakage of the heat exchange fluid, reducing the difficulty of battery pack assembly, reducing the use of thermal conductive adhesive 4, reducing costs in terms of materials and labor, and improving the mass energy density of the battery pack; in addition, in an accident state, the directly fixedly connected heat exchange clamp 11 and the heat exchange side plate 12 can effectively block the spread of thermal runaway between different modules 3 and reduce losses; and the heat exchange clamp 11 and the heat exchange side plate 12 are directly fixedly connected, which improves the energy density and structural compactness, reduces the use of thermal conductive adhesive 4, and reduces the weight of the heat exchange component 1.

[0040] As an implementation method, Figure 1 and Figure 2 As shown, the heat exchange side plate 12 is provided with a liquid inlet 121 and a liquid outlet 122 for heat exchange liquid to enter and exit the heat exchange element 1 .

[0041] As an implementation method, Figure 1 and Figure 2 As shown, the heat exchange clamping plate 11 has a thickness direction D, and the heat exchange clamping plate 11 is connected to the heat exchange side plate 12 through a side surface parallel to the thickness direction D.

[0042] As an implementation method, Figure 1 and Figure 2 As shown, the heat exchange clamping plate 11 is vertically arranged, and the bottom side of the heat exchange clamping plate 11 is connected to the heat exchange side plate 12 .

[0043] As an implementation mode, the heat exchange clamping plate 11 and the heat exchange side plate 12 are connected by welding to improve the connection strength between the two.

[0044] As an implementation method, Figure 1 , Figure 2 and Fig.11 As shown, the heat exchange clamping plate 11 is used to be arranged between adjacent modules 3, the heat exchange side plate 12 is located on the same side of each module 3, and the heat exchange element 1 also includes an outer clamping plate 13, which is fixedly connected to the heat exchange side plate 12 and arranged opposite to the heat exchange clamping plate 11, and the heat exchange clamping plate 11 and the outer clamping plate 13 are parallel. The outer clamping plate 13 is located on the outside of the outermost module 3, and the outer clamping plate 13 is also provided with a heat exchange channel S, and the heat exchange channels S of the outer clamping plate 13 and the heat exchange side plate 12 are connected to each other.

[0045] As an implementation method, Figure 1 and Figure 2As shown, the heat exchange splint 11, the heat exchange side plate 12 and the outer splint 13 are all provided with ribs 14 for forming heat exchange channels S inside each of them. The ribs 14 of the heat exchange side plate 12 are parallel and horizontally arranged, and the ribs 14 of the heat exchange splint 11 and the outer splint 13 are parallel and vertically arranged; the ribs 14 of the heat exchange splint 11 are connected to the ribs 14 of the heat exchange side plate 12 at the bottom in a one-to-one correspondence, and the ribs 14 of the outer splint 13 are connected to the ribs 14 of the heat exchange side plate 12 at the bottom in a one-to-one correspondence. Among them, by changing the number, width, spacing and other parameters of the ribs 14, the flow rate and flow field of the heat exchange fluid can be adjusted, so as to achieve uniform distribution of the heat exchange fluid inside the heat exchange component 1 and on-demand distribution of the flow rate between different heat exchange splints 11 or outer splints 13. For example, Figure 2 and Figure 4 It can be seen that the heat exchange channel S of the heat exchange clamp plate 11 is divided and formed by the ribs 14 . The heat exchange channel S of the heat exchange clamp plate 11 can be adjusted by adjusting the number, width, spacing and other parameters of the ribs 14 accordingly.

[0046] As an implementation method, Figure 2 As shown, among the ribs 14 of the heat exchange side plate 12 , a plurality of first liquid inlet channels S1 are formed on one side of the middle rib 14 , and a plurality of first liquid outlet channels S2 are formed on the other side of the middle rib 14 .

[0047] As an implementation method, Figure 2 As shown, among the ribs 14 of the heat exchange clamp 11, a plurality of second liquid inlet channels S3 are formed on one side of the middle rib 14, and a plurality of second liquid outlet channels S4 are formed on the other side of the middle rib 14; a plurality of first liquid inlet channels S1 are connected to a plurality of second liquid inlet channels S3 of the heat exchange clamp 11 in a one-to-one correspondence, and a plurality of first liquid outlet channels S2 are connected to a plurality of second liquid outlet channels S4 of the heat exchange clamp 11 in a one-to-one correspondence. Thus, a plurality of first liquid inlet channels S1 are connected to a plurality of liquid inlet channel groups formed by corresponding second liquid inlet channels S3 in parallel, and a plurality of first liquid outlet channels S2 are connected to a plurality of liquid outlet channel groups formed by corresponding second liquid outlet channels S4 in parallel. Compared with the solution of an S-shaped channel from beginning to end, the flow channel length can be shortened and the heat exchange efficiency can be improved.

[0048] As an implementation method, Figure 2As shown, among the ribs 14 of the outer clamping plate 13, a plurality of third liquid inlet channels S5 are formed on one side of the middle rib 14, and a plurality of third liquid outlet channels S6 are formed on the other side of the middle rib 14; a plurality of first liquid inlet channels S1 are connected to the plurality of third liquid inlet channels S5 of the outer clamping plate 13 in a one-to-one correspondence, and a plurality of first liquid outlet channels S2 are connected to the plurality of third liquid outlet channels S6 of the outer clamping plate 13 in a one-to-one correspondence. Thus, a plurality of first liquid inlet channels S1 are connected to a plurality of liquid inlet channel groups formed by corresponding third liquid inlet channels S5 in parallel, and a plurality of first liquid outlet channels S2 are connected to a plurality of liquid outlet channel groups formed by corresponding third liquid outlet channels S6 in parallel, and compared with the solution of one S-shaped channel from beginning to end, the flow channel length can be shortened and the heat exchange efficiency can be improved.

[0049] As an implementation method, Figure 2 As shown, along the length direction L1 of the ribs 14 of the heat exchange side plate 12, multiple first liquid inlet channels S1 are connected at one end, multiple first liquid outlet channels S2 are connected at one end near the connection point of multiple first liquid inlet channels S1, the liquid inlet 121 is set at the position where multiple first liquid inlet channels S1 are connected and connected to each first liquid inlet channel S1, and the liquid outlet 122 is set at the position where multiple first liquid outlet channels S2 are connected and connected to each first liquid outlet channel S2; along the length direction L2 of the ribs 14 of the heat exchange clamp 11, multiple second liquid inlet channels S3 are connected to multiple second liquid outlet channels S4 at the top; along the length direction L3 of the ribs 14 of the outer clamp 13, multiple third liquid inlet channels S5 are connected to multiple third liquid outlet channels S6 at the top. As a result, the heat exchange liquid entering the heat exchange element 1 from the first liquid inlet channel S1 can be discharged from the heat exchange element 1 from the first liquid outlet channel S2 after passing through the heat exchange clamp 11 or the outer clamp 13.

[0050] As an implementation method, Figure 2As shown, the multiple second liquid inlet channels S3 of the heat exchange clamp 11 are connected to the multiple first liquid inlet channels S1 at the bottom in a one-to-one correspondence, and the multiple second liquid outlet channels S4 of the heat exchange clamp 11 are connected to the multiple first liquid outlet channels S2 at the bottom in a one-to-one correspondence; the multiple third liquid inlet channels S5 of the outer clamp 13 are connected to the multiple first liquid inlet channels S1 at the bottom in a one-to-one correspondence, and the multiple third liquid outlet channels S6 of the outer clamp 13 are connected to the multiple first liquid outlet channels S2 at the bottom in a one-to-one correspondence. Specifically, when the heat exchange liquid enters the first liquid inlet channel S1 of the heat exchange side plate 12 from the liquid inlet port 121, the heat exchange liquid first enters the heat exchange clamp 11 through the second liquid inlet channel S3 during the flow of the first liquid inlet channel S1, or first enters the outer clamp 13 through the third liquid inlet channel S5, and then, the heat exchange liquid passing through the second liquid inlet channel S3 flows into the second liquid outlet channel S4 and then converges into the first liquid outlet channel S2, or the heat exchange liquid passing through the third liquid inlet channel S5 flows into the third liquid outlet channel S6 and then converges into the first liquid outlet channel S2, that is, the heat exchange liquid flowing through the heat exchange clamp 11 or the outer clamp 13 flows into the first liquid outlet channel S2 of the heat exchange side plate 12, and then is discharged outside the heat exchange component 1 through the liquid outlet port 122.

[0051] As an implementation method, Figure 1 , Figure 2 and Fig.11 As shown, the heat exchange clamp 11 includes a glue conducting channel 111, which is used to conduct glue to the gap between the heat exchange clamp 11 and the module 3. The introduced thermal conductive glue 4 improves the heat exchange efficiency between the heat exchange clamp 11 and the adjacent module 3.

[0052] As an implementation method, Figure 1 , Figure 3 , Figure 5 and Fig.11 As shown, the glue guiding channel 111 includes a first channel 1111 and a second channel 1112, the first channel 1111 and the second channel 1112 are connected, the first channel 1111 has a first glue guiding direction M1, the second channel 1112 has a second glue guiding direction M2, the first glue guiding direction M1 intersects with the second glue guiding direction M2, so that the thermal conductive glue 4 between the heat exchange clamp 11 and the module 3 can flow in two directions to improve the efficiency of the thermal conductive glue 4 filling the gap between the heat exchange clamp 11 and the module 3.

[0053] As an implementation method, Figure 2 As shown, the first glue guiding direction M1 is vertical, and the second glue guiding direction M2 is horizontal.

[0054] As an implementation method, Figure 1 As shown, the first channel 1111 has a width W1, and the second channel 1112 has a width W2, where W2≤W1.

[0055] As an implementation method, Figure 1 As shown, the first channel 1111 is connected to a plurality of second channels 1112 , and the plurality of second channels 1112 connected to the first channel 1111 are arranged in sequence along the first glue guiding direction M1 .

[0056] As an implementation method, Figure 1 and Figure 3 As shown, the heat exchange clamping plate 11 has a thickness direction D, and a side end of the heat exchange clamping plate 11 parallel to the thickness direction D is provided with a glue injection port 112 , and the glue injection port 112 is communicated with the first channel 1111 .

[0057] As an implementation method, Figure 1 and Figure 3 As shown, the first channel 1111 is connected to a plurality of second channels 1112, and the plurality of second channels 1112 connected to the first channel 1111 are arranged in sequence along the first glue guiding direction M1; along the first glue guiding direction M1, the glue injection port 112 is connected to one end of the first channel 1111, and among the plurality of second channels 1112 connected to the first channel 1111, the length of the second channel 1112 close to the glue injection port 112 in the second glue guiding direction M2 is less than or equal to the length of the second channel 1112 far from the glue injection port 112 in the second glue guiding direction M2. The farther the distance from the glue injection port 112, the smaller the glue injection pressure, and the thermal conductive glue 4 (such as Fig.11 As shown in the figure, the greater the flow resistance is, when the second channel 1112 far away from the glue injection port 112 has a longer length in the second glue guiding direction M2, it is beneficial to improve the glue guiding efficiency. This embodiment is beneficial to balance the glue injection rate of the thermal conductive glue 4 at various locations, thereby improving the glue injection efficiency.

[0058] As an implementation method, Figure 5 and Figure 6 As shown, a sealing member 2 is provided in the glue injection port 112, and the sealing member 2 is used to seal the thermal conductive glue 4 (such as Fig.11 After the injection is completed, the glue injection port 112 is closed. The sealing member 2 can be a bolt or a glue nail.

[0059] As an implementation method, Figures 1 to 6 As shown, the heat exchange clamp 11 is provided with ribs 14 for forming a heat exchange channel S, and the first channel 1111 is provided at the ribs 14, and along the thickness direction D of the heat exchange clamp 11, the first channel 1111 penetrates the heat exchange clamp 11. Thus, the first channel 1111 can connect the two sides of the heat exchange clamp 11 along the thickness direction D, avoiding the need to respectively provide the first channel 1111 and the corresponding injection port 112 on both sides, thereby simplifying the structure. The first channel 1111 is provided at the ribs 14, so as to avoid the first channel 1111 affecting the setting of the heat exchange channel S in the heat exchange clamp 11. Further, as Figures 1 to 5As shown, the size of the rib 14 provided with the first channel 1111 is larger than the size of the rib 14 at other positions, so as to avoid the position of the rib 14 provided with the first channel 1111 being too small, which increases the difficulty of providing the first channel 1111, and avoids the first channel 1111 being connected with the heat exchange channel S, thereby affecting the normal operation of the heat exchange channel S; the size of the rib 14 at other positions is small, so as to avoid all the ribs 14 being the same size, thereby occupying more space of the heat exchange channel S, thereby affecting the heat exchange efficiency. Figure 1 , Figures 5 to 9 As shown, along the thickness direction D of the heat exchange clamp 11, multiple second channels 1112 connected to the first channel 1111 are provided on both sides of the heat exchange clamp 11, and the ribs 14 are not connected to the inner wall of the heat exchange clamp 11 at the top of the heat exchange clamp 11, so that the liquid inlet channel and the liquid outlet channel of the heat exchange clamp 11 can be connected to each other here.

[0060] Specifically, Figures 5 to 9 The main view and cross-sectional view are at the heat exchange clamping plate 11, and the main view and cross-sectional view at the outer clamping plate 13 are not listed one by one. The difference between the two is that the glue conducting channel 111 of the outer clamping plate 13 is arranged on the side facing the module 3 but does not penetrate the outer clamping plate 13 along the thickness direction D to avoid overflow of the thermal conductive glue 4.

[0061] As an implementation method, Figures 1 to 3 As shown, along the thickness direction D of the heat exchange clamp plate 11, the size of the second channel 1112 is smaller than the size of the first channel 1111. Further, along the thickness direction D of the heat exchange clamp plate 11, the second channel 1112 does not penetrate the heat exchange clamp plate 11 along the thickness direction D, and the second channels 1112 on both sides of the heat exchange clamp plate 11 are spaced apart to avoid the second channels 1112 affecting the setting of the heat exchange channels S in the heat exchange clamp plate 11; it can also avoid that a large number of second channels 1112 penetrate the heat exchange clamp plate 11 and affect the structural strength of the heat exchange clamp plate 11.

[0062] As an implementation method, Figure 1 , Figure 5 and Figure 6 As shown, the glue injection port 112 is disposed on the bottom side of the heat exchange clamping plate 11 , and the glue injection port 112 passes through the heat exchange side plate 12 .

[0063] As an implementation method, Figure 5 , Figure 6 and Fig.11 As shown, a thermal conductive adhesive 4 is provided between the module 3 and the heat exchange side plate 12. Specifically, the module 3 is placed after the thermal conductive adhesive 4 is applied on the heat exchange side plate 12, and then the thermal conductive adhesive 4 is injected from the bottom adhesive injection port 112. After the thermal conductive adhesive 4 is injected, the adhesive injection port 112 is sealed with a sealant 2 to ensure the IP level protection of the entire battery pack.

[0064] As an implementation method, Figure 1and Figure 2 As shown, the outer clamping plate 13 is also provided with a glue guide channel 111 and a corresponding glue injection port 112. The glue guide channel 111 of the outer clamping plate 13 is arranged toward the module 3 (such as Fig.11 ) side and does not penetrate the outer clamping plate 13 along the thickness direction D, thereby preventing the thermal conductive glue 4 (as shown in FIG. Fig.11 shown) overflow.

[0065] As an implementation mode, the outer clamping plate 13 is connected to the heat exchange side plate 12 by welding.

[0066] As an implementation method, Figure 2 As shown, L1 is parallel to D, and M1, L2, and L3 are parallel to each other.

[0067] As an implementation method, Fig.10 As shown, the heat exchange element 1 is installed in the box 5 of the battery pack.

[0068] The utility model directly fixes the heat exchange clamp 11 and the heat exchange side plate 12 to be connected by pipelines, which solves the problem that the original heat exchange clamp 11 and the heat exchange side plate 12 are connected by pipelines, which is prone to the risk of heat exchange fluid leakage in the pipelines. It reduces the difficulty of battery pack assembly, reduces costs in terms of materials and labor, and improves the quality and energy density of the battery pack. In addition, in an accident state, the directly fixedly connected heat exchange clamp 11 and the heat exchange side plate 12 can effectively block the spread of thermal runaway between different modules 3 to reduce losses, and improve energy density and structural compactness, reduce the amount of thermal conductive adhesive 4, and reduce weight.

[0069] The above description is only a preferred embodiment of the present invention, and does not limit the present invention in any form. Although the present invention has been disclosed as a preferred embodiment as above, it is not used to limit the present invention. Any technician familiar with the profession can make some changes or modifications to the technical contents disclosed above without departing from the scope of the technical solution of the present invention, which are equivalent embodiments of equivalent changes. However, any simple modification, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the protection scope of the technical solution of the present invention.

Claims

1. A heat exchange element, characterized in that: It comprises a heat exchange clamping plate (11) and a heat exchange side plate (12) for a cooling module (3), wherein the heat exchange clamping plate (11) is fixedly connected to the heat exchange side plate (12), and heat exchange channels (S) are provided in the heat exchange clamping plate (11) and the heat exchange side plate (12), and the heat exchange channels (S) of the heat exchange clamping plate (11) and the heat exchange side plate (12) are interconnected.

2. The heat exchange element according to claim 1, characterized in that: The heat exchange clamping plate (11) and the heat exchange side plate (12) are connected by welding.

3. The heat exchange element according to claim 1, characterized in that: The heat exchange clamp (11) is used to be arranged between adjacent modules (3), and the heat exchange side plate (12) is arranged on the same side of each module (3). The heat exchange component (1) also includes an outer clamp (13), and the outer clamp (13) is fixedly connected to the heat exchange side plate (12) and arranged opposite to the heat exchange clamp (11). The outer clamp (13) is located on the outside of the outermost module (3). The outer clamp (13) is also provided with a heat exchange channel (S), and the outer clamp (13) and the heat exchange channel (S) of the heat exchange side plate (12) are interconnected.

4. The heat exchange element according to claim 3, characterized in that: The heat exchange clamping plate (11), the heat exchange side plate (12) and the outer clamping plate (13) are all provided with ribs (14) for forming the heat exchange channels (S) inside each of them; each of the ribs (14) of the heat exchange clamping plate (11) and each of the ribs (14) of the heat exchange side plate (12) are connected in a one-to-one correspondence, and each of the ribs (14) of the outer clamping plate (13) and each of the ribs (14) of the heat exchange side plate (12) are connected in a one-to-one correspondence.

5. The heat exchange element according to claim 4, characterized in that: The ribs (14) of the heat exchange clamping plate (11) and the outer clamping plate (13) are parallel, and the ribs (14) of the heat exchange side plate (12) are parallel.

6. The heat exchange element according to claim 4, characterized in that: In each of the ribs (14) of the heat exchange side plate (12), a plurality of first liquid inlet channels (S1) are formed on one side of the rib (14) located in the middle, and a plurality of first liquid outlet channels (S2) are formed on the other side of the rib (14) located in the middle; in each of the ribs (14) of the heat exchange clamping plate (11), a plurality of second liquid inlet channels (S3) are formed on one side of the rib (14) located in the middle, and a plurality of second liquid outlet channels (S4) are formed on the other side of the rib (14) located in the middle; the plurality of first liquid inlet channels (S1) are connected to the plurality of second liquid inlet channels (S3) of the heat exchange clamping plate (11) in a one-to-one correspondence, and the plurality of first liquid outlet channels (S4) are connected to the plurality of second liquid inlet channels (S3) of the heat exchange clamping plate (11) in a one-to-one correspondence. The first liquid outlet channel (S2) is connected to the plurality of second liquid outlet channels (S4) of the heat exchange clamp (11) in a one-to-one correspondence; in each of the ribs (14) of the outer clamp (13), a plurality of third liquid inlet channels (S5) are formed on one side of the middle rib (14), and a plurality of third liquid outlet channels (S6) are formed on the other side of the middle rib (14); the plurality of first liquid inlet channels (S1) are connected to the plurality of third liquid inlet channels (S5) of the outer clamp (13) in a one-to-one correspondence, and the plurality of first liquid outlet channels (S2) are connected to the plurality of third liquid outlet channels (S6) of the outer clamp (13) in a one-to-one correspondence.

7. The heat exchange element according to claim 6, characterized in that: The heat exchange side plate (12) is provided with a liquid inlet (121) and a liquid outlet (122) for heat exchange liquid to enter and exit the heat exchange element (1); along the length direction (L1) of the rib (14) of the heat exchange side plate (12), a plurality of the first liquid inlet channels (S1) are connected at one end thereof, and a plurality of the first liquid outlet channels (S2) are connected at one end close to the connection point of the plurality of the first liquid inlet channels (S1); the liquid inlet (121) is arranged at a position where the plurality of the first liquid inlet channels (S1) are connected, and the liquid outlet (122) is arranged at a position where the plurality of the first liquid outlet channels (S2) are connected; along the length direction (L2) of the rib (14) of the heat exchange clamping plate (11), a plurality of the second liquid inlet channels (S3) and a plurality of the second liquid outlet channels (S4) are connected at a position away from the heat exchange side plate (12); along the length direction (L3) of the rib (14) of the outer clamping plate (13), the plurality of third liquid inlet channels (S5) are connected with the plurality of third liquid outlet channels (S6) at the end away from the heat exchange side plate (12); the plurality of second liquid inlet channels (S3) of the heat exchange clamping plate (11) are connected with the plurality of first liquid inlet channels (S1) in a one-to-one correspondence, and the plurality of second liquid outlet channels (S4) of the heat exchange clamping plate (11) are connected with the plurality of first liquid outlet channels (S2) in a one-to-one correspondence; the plurality of third liquid inlet channels (S5) of the outer clamping plate (13) are connected with the plurality of first liquid inlet channels (S1) in a one-to-one correspondence, and the plurality of third liquid outlet channels (S6) of the outer clamping plate (13) are connected with the plurality of first liquid outlet channels (S2) in a one-to-one correspondence.

8. The heat exchange element according to any one of claims 1 to 7, characterized in that: The heat exchange clamping plate (11) comprises a glue conducting channel (111), and the glue conducting channel (111) is used to conduct glue to the gap between the heat exchange clamping plate (11) and the module (3).

9. The heat exchange element according to claim 8, characterized in that: The glue conducting channel (111) comprises a first channel (1111) and a second channel (1112); the first channel (1111) and the second channel (1112) are connected; the first channel (1111) has a first glue conducting direction (M1); the second channel (1112) has a second glue conducting direction (M2); the first glue conducting direction (M1) intersects with the second glue conducting direction (M2).

10. The heat exchange element according to claim 9, characterized in that: The heat exchange clamp (11) has a thickness direction (D), and a rib (14) for forming the heat exchange channel (S) is provided in the heat exchange clamp (11); the first channel (1111) is arranged at the rib (14), and along the thickness direction (D) of the heat exchange clamp (11), the first channel (1111) penetrates the heat exchange clamp (11); the second channel (1112) is arranged on the surface of the heat exchange clamp (11), and along the thickness direction (D) of the heat exchange clamp (11), the size of the second channel (1112) is smaller than the size of the first channel (1111).

11. The heat exchange element according to claim 9, characterized in that: The first channel (1111) has a width W1, and the second channel (1112) has a width W2, where W2≤W1.

12. The heat exchange element according to claim 9, characterized in that: The first channel (1111) is connected to a plurality of the second channels (1112), and the plurality of the second channels (1112) connected to the first channel (1111) are arranged in sequence along the first glue guiding direction (M1).

13. The heat exchange element according to claim 9, characterized in that: The heat exchange clamping plate (11) has a thickness direction (D), and a side end of the heat exchange clamping plate (11) parallel to the thickness direction (D) is provided with a glue injection port (112), and the glue injection port (112) is connected to the first channel (1111).

14. The heat exchange element according to claim 13, characterized in that: The first channel (1111) is connected to a plurality of the second channels (1112), and the plurality of the second channels (1112) connected to the first channel (1111) are arranged in sequence along the first glue guiding direction (M1); along the first glue guiding direction (M1), the glue injection port (112) is connected to one end of the first channel (1111), and among the plurality of the second channels (1112) connected to the first channel (1111), the length of the second channel (1112) close to the glue injection port (112) in the second glue guiding direction (M2) is less than or equal to the length of the second channel (1112) far from the glue injection port (112) in the second glue guiding direction (M2).

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