Heat exchange plate, battery device and electric appliance

Abstract

The utility model discloses a kind of heat exchange plate, battery device and electrical equipment, heat exchange plate includes: first partial plate body and second partial plate body, the first partial plate body and the second partial plate body are spaced apart in first direction;Third partial plate body and fourth partial plate body, the third partial plate body and the fourth partial plate body are spaced apart in second direction, the third partial plate body and the fourth partial plate body are connected with the first partial plate body and the second partial plate body respectively, the second direction intersects with the first direction;Wherein the first partial plate body, the third partial plate body, the second partial plate body and the fourth partial plate body enclose crack stop. According to the heat exchange plate designed in the utility model, crack stop is opened in middle part, to be used for cutting off the force transmission of heat exchange plate in battery module expansion direction, avoid heat exchange plate to occur deformation or fracture due to the force in battery module expansion direction.

Claims

1. A heat exchange plate (1), characterized in that, include: A first part plate (11) and a second part plate (12) are provided at intervals in a first direction; A third plate (13) and a fourth plate (14) are provided, the third plate (13) and the fourth plate (14) being spaced apart in a second direction. The third plate (13) and the fourth plate (14) are respectively connected to the first plate (11) and the second plate (12), and the second direction intersects the first direction; wherein The first part of the plate (11), the third part of the plate (13), the second part of the plate (12) and the fourth part of the plate (14) form a crack-stopping structure (21).

2. The heat exchange plate (1) according to claim 1, characterized in that, A first flow channel region (11a) and a second flow channel region (12a) are respectively formed on the first part plate (11) and the second part plate (12), and the anti-crack (21) extends along the second direction; wherein The orthographic projection of the stop crack (21) in the first direction at least partially coincides with the orthographic projection of the first flow channel region (11a) in the first direction, and / or the orthographic projection of the stop crack (21) in the first direction at least partially coincides with the orthographic projection of the second flow channel region (12a) in the first direction.

3. The heat exchange plate (1) according to claim 2, characterized in that, The first flow channel region (11a) is configured as a plurality of spaced-apart regions along the second direction, and / or the second flow channel region (12a) is configured as a plurality of spaced-apart regions along the second direction.

4. The heat exchange plate (1) according to claim 1, characterized in that, The width of the first part of the plate (11) in the first direction is the same as the width of the second part of the plate (12) in the first direction.

5. The heat exchange plate (1) according to claim 1, characterized in that, The thickness of the heat exchange plate (1) is T, and the width of the anti-crack (21) in the first direction is A, and satisfies: 0 <A≤10T。 6. The heat exchange plate (1) according to any one of claims 1-5, characterized in that, The anti-crack (21) has an anti-crack groove (22) formed at the end facing the third part of the plate (13), and / or the anti-crack (21) has an anti-crack groove (22) formed at the end facing the fourth part of the plate (14), the width of the anti-crack (21) in the first direction is A, the width of the anti-crack groove (22) in the first direction is W, and satisfies: W > A.

7. The heat exchange plate (1) according to claim 6, characterized in that, In the first direction, the width of at least a portion of the anti-crack groove (22) gradually increases in the direction away from the anti-crack (21).

8. The heat exchange plate (1) according to claim 6, characterized in that, The thickness of the heat exchange plate (1) is T, and the maximum width of the anti-crack groove (22) in the first direction is W', and satisfies: 20T≤W'≤30T.

9. The heat exchange plate (1) according to claim 7, characterized in that, The crack-stopping groove (21) has a first side (211) and a second side (212) facing each other in the first direction. The crack-stopping groove (22) has a first connecting side (221) and a second connecting side (222) arranged opposite to each other in the first direction. One end of the first connecting side (221) is connected to the first side (211), and one end of the second connecting side (222) is connected to the second side (212). The distance between the first connecting side (221) and the second connecting side (222) in the first direction gradually increases in the direction away from the crack-stopping groove (21). The crack-stopping groove (22) also has a third connecting edge (223), which is connected to the other end of the first connecting edge (221) and the other end of the second connecting edge (222).

10. The heat exchange plate (1) according to claim 9, characterized in that, The first side (211) and the second side (212) are symmetrical with respect to the first straight line (L). The first connecting side (221) and the second connecting side (222) are also symmetrical with respect to the first straight line (L). The angle between the first connecting side (221) and the first straight line (L) is α, which satisfies: 35°≤α≤55°.

11. The heat exchange plate (1) according to claim 9, characterized in that, The third connecting edge (223) is connected to the first connecting edge (221) via a first arc edge (21a), and / or, the third connecting edge (223) is connected to the second connecting edge (222) via a first arc edge (21a); ​​wherein The first arc edge (21a) is bent in the direction away from the crack-stopping groove (22) and the inner diameter of the first arc edge (21a) is R1. The thickness of the heat exchange plate (1) is T, satisfying: 2T≤R1≤3T.

12. The heat exchange plate (1) according to claim 9, characterized in that, The first connecting edge (221) is connected to the first edge (211) via a second arc edge (21b), and / or, the second connecting edge (222) is connected to the second edge (212) via a second arc edge (21b); wherein The second arc edge (21b) is bent toward the crack-stopping groove (22) and the inner diameter of the second arc edge (21b) is R2. The thickness of the heat exchange plate (1) is T, satisfying: 0 < R2 ≤ 25T.

13. The heat exchange plate (1) according to any one of claims 1-5, characterized in that, It also includes at least one fifth part plate (15), which is disposed between and spaced apart from the first part plate (11) and the second part plate (12) in the first direction, and is respectively connected to the third part plate (13) and the fourth part plate (14); wherein The first part plate (11), the third part plate (13), the second part plate (12), the fourth part plate (14), and the at least one fifth part plate (15) enclose at least two of the aforementioned crack-stopping cracks (21).

14. A battery device (1000), characterized in that, include: The battery module (2) includes a plurality of battery cells stacked along the first direction; A heat exchange plate (1) is constructed as described in any one of claims 1-13. The heat exchange plate (1) is located on one side of the battery module (2) in a third direction. The stop crack (21) extends along the second direction. The third direction intersects the first direction and the second direction, respectively.

15. The battery device (1000) according to claim 14, characterized in that, The battery module (2) is configured as a plurality of modules spaced apart along the second direction.

16. The battery device (1000) according to claim 14, characterized in that, Also includes: Pallet frame (3); The first pull plate (4) is connected to the pallet frame (3) on the third-side upward side; The second pull plate (5) is connected to the tray frame (3) on the other side of the third direction. The first pull plate (4), the second pull plate (5) and the tray frame (3) enclose an installation space suitable for accommodating the battery module (2). The surface of the second pull plate (5) facing away from the battery module (2) is connected to the heat exchange plate (1).

17. The battery device (1000) according to claim 16, characterized in that, The first pull plate (4) has flanged portions (10) at both ends along the first direction, and the flanged portions (10) are connected to the side of the tray frame (3) away from the battery module (2); and / or The second pull plate (5) has flanged portions (10) at both ends along the first direction, and the flanged portions (10) are connected to the side of the tray frame (3) away from the battery module (2).

18. The battery device (1000) according to claim 16, characterized in that, Also includes: Bottom guard plate (6) is disposed on the surface of the heat exchange plate (1) away from the second pull plate (5).

19. An electrical appliance, characterized in that, Includes the battery device (1000) according to any one of claims 14-18.

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