Harmonica-shaped tube, temperature control unit, temperature control assembly, battery pack assembly and automobile
By introducing buffer parts in the harmonica, absorbing the expansion of the cooling parts, the problem of poor cooling effect of the existing harmonica tube has been solved, and a more efficient cooling effect is achieved.
Patent Information
- Application Number
- CN202411325745.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-20
- Publication Date
- 2025-01-24
AI Technical Summary
The existing harmonica tube structure cannot effectively absorb the expansion force of the part to be cooled, resulting in poor cooling effect.
A harmonica tube including a tube body and a buffer piece is designed. The side plates of the tube body fit with the parts to be cooled. The buffer piece is set in the tube body, and both ends are connected to the inner walls of the side plates. The buffer piece bends under the action of expansion force. Deformation and absorption of expansion force.
Through the bending deformation of the buffer part, the expansion force of the part to be cooled is effectively absorbed, a large contact area between the harmonica tube and the part to be cooled is maintained, and the cooling effect is improved.
Smart Images
Figure CN119361892A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the technical field of temperature control equipment, and in particular to a harmonica pipe, a temperature control unit, a temperature control component, a battery pack assembly and a car. Background Art
[0002] At present, harmonica tubes are used in many fields to achieve heat exchange cooling of the parts to be cooled, such as the battery field. However, the existing harmonica tubes cannot effectively absorb the expansion force of the parts to be cooled, resulting in failure to maintain large-area contact with the parts to be cooled, and the cooling effect is poor. Summary of the invention The present invention provides a harmonica pipe, a temperature control unit, a temperature control component, a battery pack assembly and a car, so as to solve the problem that the existing harmonica pipe structure cannot effectively absorb the expansion force of a part to be cooled.
[0003] A harmonica pipe, comprising a pipe body and a buffer; The tube body comprises two side plates arranged opposite to each other along a first direction; The buffer member is arranged in the tube body, and two ends of the buffer member are respectively connected to the inner walls of the two side plates.
[0004] Preferably, the harmonica pipe further comprises a limiting protrusion; the limiting protrusion is arranged on the side plate and / or the buffer member.
[0005] Preferably, the limiting protrusion includes a first protrusion and a second protrusion; The first protrusion is arranged on one of the side panels, the second protrusion is arranged on the other side panel, and the first protrusion is arranged opposite to the second protrusion; Alternatively, the limiting protrusion further includes a connecting plate, which is arranged along the second direction at the connection between the buffer component and / or the two side plates, and the first protrusion and the second protrusion are arranged on the connecting plate at intervals.
[0006] Preferably, the angle between the buffer component and the side plate is no greater than 45°.
[0007] A temperature control unit, comprising two manifolds and at least two harmonica tubes; The two collecting pipes are arranged at intervals along the third direction, and at least two harmonica pipes are arranged at intervals between the two collecting pipes along the second direction.
[0008] Preferably, each of the manifolds is provided with an open end, the open end of one manifold is provided with a liquid inlet joint, and the open end of another manifold is provided with a liquid outlet joint; The temperature control unit also includes two connecting hoses, one of which is used to connect the liquid inlet joint and the liquid inlet pipe, and the other of which is used to connect the liquid outlet joint and the liquid outlet pipe.
[0009] Preferably, the temperature control unit further comprises a partition, which is arranged in the manifold and located between two adjacent harmonica tubes, and is used for changing the flow direction of the coolant in the manifold.
[0010] A temperature control assembly, comprising a liquid inlet pipe, a liquid outlet pipe and the temperature control unit; The liquid inlet pipe is connected to one of the headers in the temperature control unit, and the liquid outlet pipe is connected to another header in the temperature control unit.
[0011] Preferably, there are multiple temperature control units, and the multiple temperature control units are arranged at intervals along the first direction; In the plurality of temperature control units, the connecting hoses on one of the manifolds are connected in sequence to form a liquid inlet channel, and the connecting hoses on another of the manifolds are connected in sequence to form a liquid outlet channel; The liquid inlet pipe comprises a liquid inlet main pipe and at least one liquid inlet branch pipe, the liquid inlet end of the liquid inlet branch pipe is connected to the liquid inlet main pipe, and the liquid outlet end of the liquid inlet branch pipe is connected to the liquid inlet channel; The liquid outlet pipe is communicated with the liquid outlet channel.
[0012] A battery pack assembly, comprising a battery cell and the temperature control component; The temperature control unit of the temperature control assembly is fitted with the battery core.
[0013] Preferably, the battery pack assembly further comprises a box body, wherein a cavity is provided in the box body; The battery core and the temperature control component are both arranged in the cavity, and each of the battery cores is arranged between two adjacent temperature control units.
[0014] Preferably, the box body comprises a bottom shell and at least one partition beam; At least one of the partition beams is disposed in the bottom shell, and the accommodating space of the bottom shell is partitioned to form at least two cavities.
[0015] A car comprises the battery pack assembly. The harmonica tube provided in the embodiment of the present invention specifically includes a tube body and a buffer; the tube body includes two side plates, the two side plates are arranged opposite to each other along a first direction, and each side plate is fitted with a part to be cooled to achieve rapid cooling of the part to be cooled; the buffer is arranged in the tube body, and the two ends of the buffer are respectively connected to the inner walls of the two side plates. In this way, when the part to be cooled is heated and expanded, the two side plates fitted with the part to be cooled are deformed under the action of the expansion force, and the buffer is bent and deformed accordingly, and the expansion force of the part to be cooled is absorbed in time, so that a larger contact area is maintained between the harmonica tube and the part to be cooled, thereby improving the cooling effect of the harmonica tube. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for use in the description of the embodiments of the present invention will be briefly introduced below. Obviously, the accompanying drawings in the following description are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative labor.
[0017] Figure 1 is an isometric view of a first structure of a harmonica pipe in one embodiment of the present invention; Figure 2 yes Figure 1 Side view of Figure 3 is an isometric view of a first structure of a harmonica pipe after being compressed and deformed in one embodiment of the present invention; Figure 4 is an isometric view of a second structure of a harmonica pipe according to an embodiment of the present invention; Figure 5 is an isometric view of the second structure of the harmonica pipe after being compressed and deformed in one embodiment of the present invention; Figure 6 is an isometric view of a third structure of a harmonica pipe according to an embodiment of the present invention; Figure 7 is an exploded view of a temperature control unit in one embodiment of the present invention; Figure 8 is an isometric view of a temperature control unit and a battery cell combination in one embodiment of the present invention; Fig. 9 is an exploded diagram of a temperature control unit and a battery cell combination in one embodiment of the present invention; Fig.10 is an isometric view of a battery cell in one embodiment of the present invention; Fig.11 is an isometric view of a temperature control assembly from a first viewing angle in one embodiment of the present invention; Fig.12 is an isometric view of a temperature control assembly from a second viewing angle in one embodiment of the present invention; Fig.13 is a side view of a liquid inlet pipe in one embodiment of the present invention; Fig.14 is a cooling liquid flow route diagram of a temperature control component in one embodiment of the present invention; Fig.15 is an isometric view of a combination of two temperature control components in one embodiment of the present invention from a first perspective; Fig.16 is an isometric view of a combination of two temperature control components from a second perspective in one embodiment of the present invention; Fig.17 yes Fig.16 The enlarged view of point A in the middle; Fig.18is an isometric view of a box body in one embodiment of the present invention; Fig.19 is an isometric view of a battery pack assembly in one embodiment of the present invention; Fig. 20 yes Fig.19 Enlarged view of point B in the middle.
[0018] Among them, 1, harmonica tube; 101, tube body; 1011, side plate; 102, buffer; 103, limit protrusion; 1031, first protrusion; 1032, second protrusion; 1033, connecting plate; 2. Collector; 3. Connecting hose; 31. Retractable part; 32. Connecting part; 4. Pipe clamp; 5. Plug; 6. Partition; 7. Liquid inlet connector; 8. Liquid outlet connector; 9. Liquid inlet pipe; 91. Liquid inlet main pipe; 92. Liquid inlet branch pipe; 10. Liquid outlet pipe; 11. Battery cells; 12, box body; 121, bottom shell; 122, partition beam; 1221, cross beam; 1222, longitudinal beam; 13. End plate. DETAILED DESCRIPTION
[0019] In order to make the technical problems, technical solutions and beneficial effects solved by the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.
[0020] In the description of the present invention, it should be understood that the terms "longitudinal", "radial", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In the description of the present invention, unless otherwise specified, "plurality" means two or more.
[0021] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" 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.
[0022] The embodiment of the present invention provides a harmonica pipe 1, referring to Figure 1-6 The harmonica pipe 1 includes a tube body 101 and a buffer 102; the tube body 101 includes two side plates 1011 arranged opposite to each other along a first direction; the buffer 102 is arranged in the tube body 101, and both ends of the buffer 102 are respectively connected to the inner walls of the two side plates 1011. The first direction is the thickness direction of the tube body 101 of the harmonica tube 1; for example, in a three-dimensional coordinate system, the first direction is the X direction.
[0023] As an example, the harmonica tube 1 is used to inject cooling liquid to achieve cooling of the part to be cooled. The harmonica tube 1 specifically includes a tube body 101 and a buffer 102; the tube body 101 includes two side panels 1011, the two side panels 1011 are arranged opposite to each other along a first direction, and each side panel 1011 is fitted with a part to be cooled to achieve rapid cooling of the part to be cooled; the buffer 102 is arranged in the tube body 101, and the two ends of the buffer 102 are respectively connected to the inner walls of the two side panels 1011. In this way, when the part to be cooled is heated and expanded, the two side panels 1011 fitted with the part to be cooled are deformed under the action of the expansion force, and the buffer 102 is bent and deformed accordingly, and the expansion force of the part to be cooled is absorbed in time, so that a larger contact area is maintained between the harmonica tube 1 and the part to be cooled, thereby improving the cooling effect of the harmonica tube 1. Among them, the material of the harmonica tube 1 is aluminum.
[0024] In one example, refer to Figure 1-6 , the number of the buffer 102 can be one, and one buffer 102 is arranged between the two side plates 1011; the number of the buffer 102 can be at least two (for example, two), and at least two buffers 102 are arranged at intervals along the second direction, so that the deformation effect of the two side plates 1011 can be more balanced, so as to further improve the cooling effect of the harmonica tube 1. The second direction is perpendicular to the first direction and is the width direction of the tube body 101 of the harmonica tube 1; in the three-dimensional coordinate system, the second direction is the Z direction.
[0025] In one embodiment, referring to Figure 1-6 The harmonica pipe 1 further includes a limiting protrusion 103 ; the limiting protrusion 103 is arranged on the side plate 1011 and / or the buffer 102 .
[0026] As an example, the harmonica tube 1 also includes a limiting protrusion 103; when installed, the limiting protrusion 103 has three arrangements, that is, the harmonica tube 1 has three structural forms. The first arrangement of the limiting protrusion 103 is to set the limiting protrusion 103 only on the side plate 1011; the second arrangement of the limiting protrusion 103 is to set the limiting protrusion 103 only on the buffer 102; the third arrangement of the limiting protrusion 103 is to set the limiting protrusion 103 on both the side plate 1011 and the buffer 102. In the above three arrangements, during the deformation process of the two side plates 1011, the limiting protrusion 103 can prevent the two side plates 1011 from continuing to deform, so that the deformation of the buffer 102 is limited, and the excessive deformation of the buffer 102 is avoided.
[0027] In one example, when the number of the buffer members 102 is two and the number of the limiting protrusions 103 is three, the three limiting protrusions 103 and the two buffer members 102 are sequentially interspersed along the second direction, and a buffer member 102 is disposed between two limiting protrusions 103 .
[0028] In one embodiment, referring to Figure 1-6 The limiting protrusion 103 includes a first protrusion 1031 and a second protrusion 1032; the first protrusion 1031 is arranged on one side plate 1011, and the second protrusion 1032 is arranged on the other side plate 1011, and the first protrusion 1031 and the second protrusion 1032 are arranged opposite to each other; or, the limiting protrusion 103 also includes a connecting plate 1033, and the connecting plate 1033 is arranged along the second direction at the connection between the buffer member 102 and / or the two side plates 1011, and the first protrusion 1031 and the second protrusion 1032 are arranged on the connecting plate 1033 at intervals.
[0029] like Figure 1 , Figure 2 and Figure 3 As shown, a first arrangement form of the limiting protrusion 103 is introduced, in which the first protrusion 1031 is set on one side plate 1011, and the second protrusion 1032 is set on the other side plate 1011, and the first protrusion 1031 and the second protrusion 1032 are arranged opposite to each other. In this way, during the bending deformation process of the two side plates 1011, the first protrusion 1031 will abut against the second protrusion 1032, so that the bending deformation of the buffer 102 is limited, thereby avoiding excessive deformation of the buffer 102 and ensuring that the space inside the harmonica tube 1 meets the cooling liquid space required by thermal management.
[0030] like Figure 4 and Figure 5As shown, a second arrangement form of the limiting protrusion 103 is introduced. The limiting protrusion 103 also includes a connecting plate 1033. When installed, the connecting plate 1033 is arranged along the second direction at the connection between the buffer 102 or the two side plates 1011. The connecting plate 1033 is parallel to the two side plates 1011, and the first protrusion 1031 and the second protrusion 1032 are arranged on the connecting plate 1033 at intervals. In this way, during the bending deformation process of the two side plates 1011, due to the existence of the first protrusion 1031 and the second protrusion 1032, the bending deformation of the side plate 1011 is limited, thereby limiting the bending deformation of the buffer 102, avoiding excessive deformation of the buffer 102, and ensuring that the space inside the harmonica tube 1 meets the cooling liquid space required by thermal management.
[0031] like Figure 6 As shown, a third arrangement form of the limiting protrusion 103 is introduced. The limiting protrusion 103 also includes a connecting plate 1033. When installed, the connecting plate 1033 is arranged at the connection between the buffer 102 and the two side plates 1011 along the second direction. The connecting plate 1033 is parallel to the two side plates 1011, and the first protrusion 1031 and the second protrusion 1032 are arranged on the connecting plate 1033 at intervals. In this way, during the bending deformation process of the two side plates 1011, due to the existence of the first protrusion 1031 and the second protrusion 1032, the bending deformation of the side plate 1011 is limited, thereby limiting the bending deformation of the buffer 102, avoiding excessive deformation of the buffer 102, and ensuring that the space inside the harmonica tube 1 meets the cooling liquid space required by thermal management. Among them, the third direction, the second direction and the first direction are perpendicular to each other, and the third direction is the length direction of the tube body 101 of the harmonica tube 1; in the three-dimensional coordinate system, the third direction is the Y direction; the first protrusion 1031 and the second protrusion 1032 have the same thickness in the first direction (X direction), the same height in the second direction (Z direction), and the same length in the third direction (Y direction).
[0032] In one embodiment, referring to Figure 2 , the included angle between the buffer 102 and the side plate 1011 is not greater than 45°.
[0033] As an example, the angle between the buffer 102 and the side plate 1011 is not greater than 45°, so that when the side plate 1011 is deformed, the angle between the buffer 102 and the side plate 1011 can guide the buffer 102 to deform, ensuring that the expansion force of the part to be cooled can be absorbed in time, so that the harmonica tube 1 can meet the expansion force requirement of the part to be cooled, maintain the maximum contact area between the harmonica tube 1 and the part to be cooled, and improve the cooling effect of the harmonica tube 1.
[0034] As an example, during installation, the harmonica tube 1 is brought into contact with the part to be cooled to achieve cooling of the part to be cooled; the gap between the two side plates 1011 is not less than twice the maximum expansion of the part to be cooled during its service life cycle, so that the deformation of the side plates 1011 of the harmonica tube 1 can meet the maximum expansion change of the part to be cooled during its service life cycle, so that the maximum contact area is maintained between the harmonica tube 1 and the part to be cooled, thereby improving the cooling effect of the harmonica tube 1.
[0035] The embodiment of the present invention provides a temperature control unit, referring to Figure 7-9 , including two collecting pipes 2 and at least two harmonica pipes 1; the two collecting pipes 2 are arranged at intervals along the third direction, and at least two harmonica pipes 1 are arranged between the two collecting pipes 2 at intervals along the second direction. As an example, the temperature control unit includes two collecting pipes 2 and at least two harmonica tubes 1; during installation, the two collecting pipes 2 are spaced apart along a third direction, and at least two harmonica tubes 1 are spaced apart along a second direction between the two collecting pipes 2; the harmonica tube 1 is used to fit with the part to be cooled, and coolant is injected into the harmonica tube 1 to cool the part to be cooled. The harmonica pipe 1 specifically includes a pipe body 101 and a buffer 102; the pipe body 101 includes two side plates 1011, the two side plates 1011 are arranged opposite to each other along a first direction, and each side plate 1011 is fitted with a part to be cooled, so as to achieve rapid cooling of the part to be cooled; the buffer 102 is arranged in the pipe body 101, and the two ends of the buffer 102 are respectively connected to the inner walls of the two side plates 1011, so that when the part to be cooled is heated and expanded, the two side plates 1011 fitted with the part to be cooled are deformed under the action of the expansion force, and the buffer 102 is bent and deformed accordingly, and the expansion force of the part to be cooled is absorbed in time, so that a large contact area is maintained between the harmonica pipe 1 and the part to be cooled, thereby improving the cooling effect of the harmonica pipe 1. Wherein, a part to be cooled is arranged on both sides of each harmonica pipe 1, so that the coolant in the harmonica pipe 1 can cool the two parts to be cooled at the same time, thereby improving the cooling effect of the harmonica pipe 1. Wherein, the material of the manifold 2 is aluminum.
[0036] In one embodiment, referring to Figure 7 and Figure 8 Each collecting pipe 2 is provided with an open end, the open end of one collecting pipe 2 is provided with a liquid inlet joint 7, and the open end of the other collecting pipe 2 is provided with a liquid outlet joint 8; the temperature control unit also includes two connecting hoses 3. During installation, one connecting hose 3 is used to connect the liquid inlet joint 7 and the liquid inlet pipe 9, and the other connecting hose 3 is used to connect the liquid outlet joint 8 and the liquid outlet pipe 10.
[0037] As an example, during the design, each manifold 2 is provided with an open end, a liquid inlet joint 7 is provided at the open end of one manifold 2, and a liquid outlet joint 8 is provided at the open end of the other manifold 2; the temperature control unit also includes two connecting hoses 3, one connecting hose 3 is used to connect the liquid inlet joint 7 and the liquid inlet pipe 9, and specifically, a pipe clamp 4 is used to connect one end of the connecting hose 3 to the liquid inlet joint 7; the other end of the connecting hose 3 is used to connect the liquid inlet pipe 9, so that the coolant can be transported through the liquid inlet pipe 9, and then the coolant can flow to the liquid inlet joint 7 through the connecting hose 3, and then flow into the manifold 2, and then flow into the harmonica pipe 1, so as to achieve cooling of the part to be cooled. The other connecting hose 3 is used to connect the liquid outlet joint 8 and the liquid outlet pipe 10, and specifically, a pipe clamp 4 is used to connect one end of the connecting hose 3 to the liquid outlet joint 8; the other end of the connecting hose 3 is used to connect the liquid outlet pipe 10, so that the coolant in the harmonica pipe 1 can flow into the connecting hose 3 through the liquid outlet joint 8, and finally discharge the coolant through the liquid outlet pipe 10. In addition, the manifold 2 may be a tube with through ends, and a plug 5 may be provided at the end of the manifold 2 to seal the manifold 2 and prevent leakage of the coolant.
[0038] In one embodiment, referring to Figure 7 and Figure 8 The temperature control unit also includes a partition 6, which is arranged in the manifold 2 and between two adjacent harmonica tubes 1, and is used to change the flow direction of the coolant in the manifold 2.
[0039] As an example, the temperature control unit also includes a partition 6, which is arranged in the manifold 2 and between two adjacent harmonica tubes 1, and is used to close the internal channel of the manifold 2 to change the flow direction of the coolant in the manifold 2 to ensure that the coolant flows in the harmonica tubes 1 between the two manifolds 2, thereby ensuring the cooling effect of the temperature control unit. The temperature control unit also includes a seal, which is arranged between the connecting hose 3 and the liquid inlet joint 7 or between the connecting hose 3 and the liquid outlet joint 8 to form a sealing surface to prevent leakage. In addition, the connecting hose 3 is made of rubber, the tube clamp 4 is made of metal, the plug 5 is made of aluminum, the partition 6 is made of aluminum, and the seal is made of rubber.
[0040] In one embodiment, referring to Figure 7The connecting hose 3 includes a telescopic portion 31 and connecting portions 32 connected at both ends of the telescopic portion 31; when the connecting hose 3 is located at the liquid inlet side, its connecting portion 32 is used to connect with the liquid inlet joint 7; when the connecting hose 3 is located at the liquid outlet side, its connecting portion 32 is used to connect with the liquid outlet joint 8; the extension of the telescopic portion 31 is greater than twice the expansion of the part to be cooled, so that when the part to be cooled expands, the connecting hose 3 will not be disconnected from the liquid inlet joint 7 or the liquid outlet joint 8, and can ensure that the coolant is continuously supplied to the manifold 2 or the coolant in the manifold 2 is discharged. Wherein, under the premise of ensuring the sealing performance, the connecting hose 3 can also adopt a quick plug method to reduce the development cost. The embodiment of the present invention provides a temperature control component, referring to Figure 7-17 , including a liquid inlet pipe 9, a liquid outlet pipe 10 and a temperature control unit; the liquid inlet pipe 9 is connected to a header 2 in the temperature control unit, and the liquid outlet pipe 10 is connected to another header 2 of the temperature control unit. As an example, the temperature control component includes a liquid inlet pipe 9, a liquid outlet pipe 10 and a temperature control unit; during installation, the liquid inlet pipe 9 is connected to a collecting pipe 2 in the temperature control unit, and the liquid outlet pipe 10 is connected to another collecting pipe 2 of the temperature control unit; this arrangement allows the coolant to flow through the liquid inlet pipe 9 to a collecting pipe 2 of the temperature control unit, and then flow into the piano tube 1 to cool the part to be cooled, and then flow to another collecting pipe 2, and finally be discharged through the liquid outlet pipe 10.
[0041] In this example, the temperature control unit includes two collecting pipes 2 and at least two harmonica tubes 1; during installation, the two collecting pipes 2 are spaced apart along the third direction, and at least two harmonica tubes 1 are spaced apart along the second direction between the two collecting pipes 2; the harmonica tube 1 is used to fit with the part to be cooled, and coolant is injected into the harmonica tube 1 to cool the part to be cooled. The harmonica tube 1 specifically includes a tube body 101 and a buffer member 102; the tube body 101 includes two side plates 1011, the two side plates 1011 are arranged opposite to each other along a first direction, and each side plate 1011 is fitted with a part to be cooled to achieve rapid cooling of the part to be cooled; the buffer member 102 is arranged in the tube body 101, and the two ends of the buffer member 102 are respectively connected to the inner walls of the two side plates 1011. In this way, when the part to be cooled expands due to heat, the two side plates 1011 fitted with the part to be cooled are deformed under the action of the expansion force, and the buffer member 102 is bent and deformed accordingly, and the expansion force of the part to be cooled is absorbed in time, so that a larger contact area is maintained between the harmonica tube 1 and the part to be cooled, thereby improving the cooling effect of the harmonica tube 1.
[0042] In one embodiment, referring to Figure 11-15There are multiple temperature control units, and the multiple temperature control units are arranged at intervals along the first direction; among the multiple temperature control units, the connecting hoses 3 on one collecting pipe 2 are connected in sequence to form a liquid inlet channel, and the connecting hoses 3 on another collecting pipe 2 are connected in sequence to form a liquid outlet channel; the liquid inlet pipe 9 includes a liquid inlet main pipe 91 and at least one liquid inlet branch pipe 92, the liquid inlet end of the liquid inlet branch pipe 92 is connected to the liquid inlet main pipe 91, and the liquid outlet end of the liquid inlet branch pipe 92 is connected to the liquid inlet channel; the liquid outlet pipe 10 is connected to the liquid outlet channel. As an example, multiple temperature control units are arranged at intervals along the first direction, and a part to be cooled is arranged between two adjacent temperature control components; the liquid inlet pipe 9 is connected to a header 2 in the multiple temperature control units, and the liquid outlet pipe 10 is connected to another header 2 in the multiple temperature control units; such an arrangement allows the coolant to flow through the liquid inlet pipe 9 to a header 2 in the multiple temperature control units, and then flow into the harmonica tube 1 to cool the part to be cooled, and then flow to another header 2, and finally be discharged through the liquid outlet pipe 10. In the multiple temperature control units, the connecting hoses 3 on one header 2 are connected in sequence to form a liquid inlet channel for conveying coolant to the harmonica tube 1; the connecting hoses 3 on another header 2 are connected in sequence to form a liquid outlet channel for discharging the used coolant in the harmonica tube 1, so as to ensure the flow of coolant and effectively cool the part to be cooled. The liquid inlet pipe 9 includes a liquid inlet main pipe 91 and at least one liquid inlet branch pipe 92. When installed, the liquid inlet end of the liquid inlet branch pipe 92 is connected to the liquid inlet main pipe 91, and the liquid outlet end of the liquid inlet branch pipe 92 is connected to the liquid inlet channel, so that the coolant enters from the liquid inlet main pipe 91, then flows into the liquid inlet channel through the liquid inlet branch pipe 92, and finally flows into the harmonica pipe 1. Among them, the number of liquid inlet branch pipes 92 can be one or more, and the multiple liquid inlet branch pipes 92 are arranged on the liquid inlet channel at intervals along the first direction to achieve balanced delivery of the coolant to the manifold 2 of the temperature control unit at different positions, and to achieve simultaneous delivery of coolant to the harmonica pipes 1 of multiple temperature control units, so as to ensure simultaneous cooling of multiple parts to be cooled, which can effectively reduce the flow resistance of the temperature control component and improve the temperature equalization effect; the liquid inlet branch pipe 92 can improve the flow resistance and heat dissipation efficiency relative to the single water inlet pipe 9, and has a simple structure; the liquid outlet pipe 10 is connected to the liquid outlet channel, which is convenient for discharging the used coolant. The liquid inlet pipe 9 is made of rubber, and the pipe diameter, the number of liquid inlet branch pipes 92 and the setting of the connection position need to be determined by combining the flow resistance requirements and the cooling effect through simulation analysis results.
[0043] Reference Fig.14, the coolant flow route in the temperature control assembly is: the coolant enters from the liquid inlet main pipe 91, is branched to the connecting hoses 3 at different positions through the liquid inlet branch pipe 92, then flows into the temperature control units at different positions, and finally is discharged from the liquid outlet pipe 10. Each temperature control unit includes two headers 2 spaced apart along the first direction and three harmonica tubes 1 spaced apart along the second direction, and the three harmonica tubes 1 are arranged between the two headers 2; when in use, the coolant flows from a header 2, first into the outermost harmonica tube 1 of the three harmonica tubes 1, and then flows into another header 2; then flows from another header 2 to the middle harmonica tube 1, and then flows into a header 2; then flows from a header 2 to the last harmonica tube 1, and then flows into another header 2, and finally is discharged from the liquid outlet pipe 10.
[0044] In one embodiment, referring to Fig.15 , Fig.16 and Fig.17 There are two temperature control components. During installation, when the two temperature control components are arranged along the first direction, the liquid inlet pipes 9 of the two temperature control components are arranged in parallel, and the liquid outlet pipes 10 of the two temperature control components are arranged in parallel. In this way, the temperature control components can be arranged reasonably to avoid interference between the two temperature control components. Among them, the liquid inlet pipe 9 of one temperature control component is different from the liquid inlet pipe 9 of another temperature control component in length, and the liquid outlet pipe 10 of one temperature control component and the liquid outlet pipe 10 of another temperature control component are fixed together by a pipe clamp 4 to form a liquid outlet channel, which is convenient for staggered connection of the two liquid outlet pipes 10.
[0045] An embodiment of the present invention provides a battery pack assembly, referring to Fig.10 , Fig.19 and Fig. 20 , including a battery cell 11 and a temperature control component; the temperature control unit of the temperature control component is attached to the battery cell 11. As an example, the battery pack assembly includes a battery cell 11 and a temperature control component; during installation, the temperature control unit of the temperature control component is fitted with the battery cell 11, and the part to be cooled is the battery cell 11. The specific temperature control component includes a liquid inlet pipe 9, a liquid outlet pipe 10 and a temperature control unit; during installation, multiple temperature control units are arranged at intervals along the first direction, and a battery cell 11 is arranged between two adjacent temperature control components; the liquid inlet pipe 9 is connected to a collector 2 in the multiple temperature control units, and the liquid outlet pipe 10 is connected to another collector 2 of the multiple temperature control units; this arrangement allows the battery cell 11 to flow through the liquid inlet pipe 9 to a collector 2 of the multiple temperature control units, and then flow into the piano tube 1, so as to cool the battery cell 11, and then flow to another collector 2, and finally be discharged through the liquid outlet pipe 10.
[0046] In this example, each temperature control unit includes two collecting tubes 2 and at least two harmonica tubes 1; during installation, the two collecting tubes 2 are spaced apart along the third direction, and at least two harmonica tubes 1 are spaced apart along the second direction between the two collecting tubes 2; the harmonica tube 1 is used to fit with the battery cell 11, and coolant is injected into the harmonica tube 1 to cool the battery cell 11. The harmonica tube 1 specifically includes a tube body 101 and a buffer 102; the tube body 101 includes two side plates 1011, the two side plates 1011 are arranged opposite to each other along a first direction, and each side plate 1011 is fitted with a battery cell 11 to achieve rapid cooling of the battery cell 11; the buffer 102 is arranged in the tube body 101, and the two ends of the buffer 102 are respectively connected to the inner walls of the two side plates 1011. In this way, when the battery cell 11 expands due to heat, the two side plates 1011 fitted with the battery cell 11 are deformed under the action of the expansion force, and the buffer 102 is bent and deformed accordingly, and the expansion force of the battery cell 11 is absorbed in time, so that the harmonica tube 1 meets the expansion force requirement of the battery cell 11, so that a larger contact area is maintained between the harmonica tube 1 and the battery cell 11, thereby improving the cooling effect of the harmonica tube 1. In one embodiment, referring to Fig.18 The battery pack assembly also includes a box body 12; a cavity is provided in the box body 12, and the battery cell 11 and the temperature control component are both arranged in the cavity; each battery cell 11 is arranged between two adjacent temperature control units. As an example, the battery pack assembly also includes a box 12; during installation, a cavity is provided in the box 12, and the battery cell 11 and the temperature control component are both arranged in the cavity, and each battery cell 11 is arranged between two adjacent temperature control units, and specifically, the two sides of each battery cell 11 are respectively fitted with a temperature control unit; the battery pack assembly also includes an end plate 13, and the end plate 13 is tightly fitted with an outer side surface of the temperature control component; the temperature control unit of the temperature control component arranged in this way can realize cooling of the battery cell 11 and the end plate 13. A buffer 102 and a limiting protrusion 103 are provided in the harmonica tube 1 of the temperature control unit. During the use of the battery pack assembly, the battery cell 11 will generate an expansion force. Due to the setting of the buffer 102, the buffer 102 will bend and deform under the action of the expansion force to absorb the expansion force of the battery cell 11 in time, thereby ensuring that the temperature control unit meets the expansion force requirements of the battery cell 11. During the bending deformation process of the side plate 1011 of the harmonica tube 1, the limiting protrusions 103 will eventually abut against each other, so that the bending deformation of the buffer 102 is limited, and the temperature control unit has a cooling liquid space that meets the thermal management requirements, thereby ensuring the thermal management performance of the temperature control unit on the battery cell 11. In one embodiment, referring to Fig.18 The box body 12 includes a bottom shell 121 and at least one partition beam 122; the at least one partition beam 122 is arranged in the bottom shell 121, and the accommodating space of the bottom shell 121 is divided to form at least two cavities. As an example, the box body 12 includes a bottom shell 121 and at least one partition beam 122; during installation, at least one partition beam 122 is set in the bottom shell 121, which can divide the accommodating space of the bottom shell 121 to form at least two cavities, one cavity is used to install the battery cell 11 and the temperature control component, and the other cavity is used to install other accessories of the battery pack assembly; the battery cells 11 are provided in plurality, and each battery cell 11 is arranged between two adjacent temperature control units, and specifically, the two sides of each battery cell 11 are respectively fitted with a temperature control unit, and the end plate 13 is tightly fitted with an outer side surface of the temperature control component; the temperature control unit of the temperature control component arranged in this way can realize cooling of the battery cell 11 and the end plate 13. In one embodiment, referring to Fig.18 , at least one partition beam 122 includes a cross beam 1221 and two longitudinal beams 1222; during installation, a cross beam 1221 cooperates with two longitudinal beams 1222 to divide the accommodation space of the bottom shell 121 to form five cavities; one cavity is used to install other accessories of the battery pack assembly, and each of the remaining four cavities is provided with a temperature control component, and the battery cell 11 is arranged in the cavity at the same time, and the battery cell 11 is provided in multiple, and each battery cell 11 is arranged between two adjacent temperature control units, and specifically, the two sides of each battery cell 11 are respectively fitted with a temperature control unit, so that the temperature control unit of the temperature control component can realize cooling of the battery cell 11 and the end plate 13. Among them, among the four cavities, the temperature control components in the two cavities arranged along the first direction are symmetrical about the middle surface of the first direction of the box body 12, that is, the front-to-back direction (X direction); the temperature control components in the two cavities arranged along the third direction are symmetrical about the middle surface of the box body 12, that is, the left-right direction (Y direction).
[0047] An embodiment of the present invention provides a vehicle, including a battery pack assembly. As an example, the battery pack assembly includes a battery cell 11 and a temperature control component; during installation, the temperature control unit of the temperature control component is fitted with the battery cell 11, and the part to be cooled is the battery cell 11. The specific temperature control component includes a liquid inlet pipe 9, a liquid outlet pipe 10 and a temperature control unit; during installation, multiple temperature control units are arranged at intervals along the first direction, and a battery cell 11 is arranged between two adjacent temperature control components; the liquid inlet pipe 9 is connected to a collector 2 in the multiple temperature control units, and the liquid outlet pipe 10 is connected to another collector 2 of the multiple temperature control units; this arrangement allows the battery cell 11 to flow through the liquid inlet pipe 9 to a collector 2 of the multiple temperature control units, and then flow into the piano tube 1, so as to cool the battery cell 11, and then flow to another collector 2, and finally be discharged through the liquid outlet pipe 10.
[0048] In this example, each temperature control unit includes two collecting tubes 2 and at least two harmonica tubes 1; during installation, the two collecting tubes 2 are spaced apart along the third direction, and at least two harmonica tubes 1 are spaced apart along the second direction between the two collecting tubes 2; the harmonica tube 1 is used to fit with the battery cell 11, and coolant is injected into the harmonica tube 1 to cool the battery cell 11. The harmonica tube 1 specifically includes a tube body 101 and a buffer 102; the tube body 101 includes two side plates 1011, the two side plates 1011 are arranged opposite to each other along a first direction, and each side plate 1011 is fitted with a battery cell 11 to achieve rapid cooling of the battery cell 11; the buffer 102 is arranged in the tube body 101, and the two ends of the buffer 102 are respectively connected to the inner walls of the two side plates 1011. In this way, when the battery cell 11 expands due to heat, the two side plates 1011 fitted with the battery cell 11 are deformed under the action of the expansion force, and the buffer 102 is bent and deformed accordingly, and the expansion force of the battery cell 11 is absorbed in time, so that the harmonica tube 1 meets the expansion force requirement of the battery cell 11, so that a larger contact area is maintained between the harmonica tube 1 and the battery cell 11, thereby improving the cooling effect of the harmonica tube 1. In this example, the battery pack assembly is provided with a temperature control component, which can effectively improve the cooling effect of the battery cell 11 and greatly increase the service life of the battery pack assembly; it can effectively improve the expansion force control of the battery cell 11 and reduce or eliminate the lithium plating phenomenon of the negative electrode of the battery cell 11 during the life cycle; the structure is compact, and combined with the use of the battery cell 11, it is beneficial to greatly improve the energy density of the battery pack assembly, thereby improving the pure electric cruising range of the whole vehicle.
[0049] The embodiments described above are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. Such modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention, and should all be included in the protection scope of the present invention.
Claims
1. A harmonica pipe, characterized in that: including a tube body and a buffer; The tube body comprises two side plates arranged opposite to each other along a first direction; The buffer member is arranged in the tube body, and two ends of the buffer member are respectively connected to the inner walls of the two side plates.
2. The harmonica pipe according to claim 1, characterized in that: The harmonica pipe further comprises a limiting protrusion; the limiting protrusion is arranged on the side plate and / or the buffer.
3. The harmonica pipe according to claim 2, characterized in that: The limiting protrusion includes a first protrusion and a second protrusion; The first protrusion is arranged on one of the side panels, the second protrusion is arranged on the other side panel, and the first protrusion is arranged opposite to the second protrusion; Alternatively, the limiting protrusion further includes a connecting plate, which is arranged along the second direction at the connection between the buffer component and / or the two side plates, and the first protrusion and the second protrusion are arranged on the connecting plate at intervals.
4. The harmonica pipe according to claim 1, characterized in that: The included angle between the buffer component and the side plate is no greater than 45°.
5. A temperature control unit, characterized in that: comprising two manifolds and at least two harmonica pipes according to any one of claims 1 to 4; The two collecting pipes are arranged at intervals along the third direction, and at least two harmonica pipes are arranged at intervals between the two collecting pipes along the second direction.
6. The temperature control unit according to claim 5, characterized in that: Each of the manifolds is provided with an open end, the open end of one manifold is provided with a liquid inlet joint, and the open end of the other manifold is provided with a liquid outlet joint; The temperature control unit also includes two connecting hoses, one of which is used to connect the liquid inlet joint and the liquid inlet pipe, and the other of which is used to connect the liquid outlet joint and the liquid outlet pipe.
7. The temperature control unit according to claim 5, characterized in that: The temperature control unit also includes a partition, which is arranged in the collecting pipe and located between two adjacent harmonica tubes, and is used to change the flow direction of the coolant in the collecting pipe.
8. A temperature control component, characterized in that: It comprises a liquid inlet pipe, a liquid outlet pipe and a temperature control unit according to any one of claims 5 to 7; The liquid inlet pipe is connected to one of the headers in the temperature control unit, and the liquid outlet pipe is connected to another header in the temperature control unit.
9. The temperature control assembly according to claim 8, characterized in that: There are multiple temperature control units, and the multiple temperature control units are arranged at intervals along the first direction; In the plurality of temperature control units, the connecting hoses on one of the manifolds are connected in sequence to form a liquid inlet channel, and the connecting hoses on another of the manifolds are connected in sequence to form a liquid outlet channel; The liquid inlet pipe comprises a liquid inlet main pipe and at least one liquid inlet branch pipe, the liquid inlet end of the liquid inlet branch pipe is connected to the liquid inlet main pipe, and the liquid outlet end of the liquid inlet branch pipe is connected to the liquid inlet channel; The liquid outlet pipe is communicated with the liquid outlet channel.
10. A battery pack assembly, characterized in that: Comprising a battery cell and a temperature control component according to any one of claims 8 to 9; The temperature control unit of the temperature control assembly is fitted with the battery core.
11. The battery pack assembly according to claim 10, characterized in that: The battery pack assembly also includes a box body, and a cavity is provided in the box body; The battery core and the temperature control component are both arranged in the cavity, and each of the battery cores is arranged between two adjacent temperature control units.
12. The battery pack assembly according to claim 11, characterized in that: The box body includes a bottom shell and at least one partition beam; At least one of the partition beams is disposed in the bottom shell, and the accommodating space of the bottom shell is partitioned to form at least two cavities.
13. A car, characterized in that: A battery pack assembly comprising any one of claims 10-12.