A water-cooling heat dissipation structure for a new energy battery housing

Abstract

The utility model provides a water-cooling heat dissipation structure of a new energy battery shell, which relates to the field of new energy technology. The water-cooling heat dissipation structure of the shell comprises: a shell, one side of the shell is concavely formed with at least two flow channels, an input end and an output end are arranged on the shell, at least two inlets of the flow channels are connected with the input end, at least two outlets of the flow channels are connected with the output end, a weld is formed on one side of the shell and is located at the edge of the flow channel, and a welding platform is formed at the end of the weld; a cover plate, the cover plate covers one side of the shell, a circle is welded on the cover plate along the edge of the welding platform to form an annular weld, and a linear weld is formed along the axis of the weld, the annular weld formed by welding on the welding platform can enhance the welding strength between the end plate and the end of the weld, the optimization of the welding path greatly improves the welding strength, greatly reduces the risk of leakage, and the service life of the product is longer.

Description

Technical Field

[0001] The utility model belongs to the technical field of new energy, and more specifically, relates to a water-cooling heat dissipation structure of a new energy battery shell. Background Art

[0002] The shell of new energy is generally formed by high-pressure casting. The liquid cooling channel can be integrated on the shell. The cover can be welded by stir friction welding to close the flow channel. The design of the weld structure can affect the welding strength to a certain extent. At present, Figure 1 As shown, the welding seam formed at the starting end of the weld can generally only be a straight line, resulting in the welding force at the starting end being only one point. The end plate welded by the friction stir welding is prone to welding defects at the starting end, which can easily cause the fatigue strength at the starting end to be weak and prone to leakage. Therefore, a structure improved at the starting position of the weld is designed to strengthen the welding strength of the end plate at the starting end. Utility Model Content

[0003] The purpose of the utility model is to provide a water-cooling and heat dissipation structure for a new energy battery shell in response to the deficiencies in the existing technology, so as to solve the problem that the welding seam formed at the starting end of the existing weld proposed in the above background technology can generally only be a straight line, resulting in the welding force at the starting end being only one point, and the end plate welded by stir friction welding is prone to defects at the starting end position, which easily causes the fatigue strength at the starting end position to be weak and prone to leakage.

[0004] In order to achieve the above-mentioned purpose, the utility model provides a new energy battery housing water cooling and heat dissipation structure, the housing water cooling and heat dissipation structure comprises:

[0005] A shell, one side of the shell is concavely formed with at least two flow channels, the shell is provided with an input end and an output end, at least two inlets of the flow channels are connected to the input end, at least two outlets of the flow channels are connected to the output end, a weld bead is formed on one side of the shell and at the edge of the flow channel, and a welding platform is formed at the end of the weld bead;

[0006] A cover plate is covered on one side of the shell, and a circle of the cover plate is welded along the edge of the welding platform to form an annular weld, and a linear weld is formed along the axis of the weld.

[0007] Preferably, the flow channel is distributed along one side of the interior of the shell, the middle side of the interior of the shell, and the remaining three sides of the interior of the shell.

[0008] Preferably, the flow channel at the inner middle side of the shell is formed with a plurality of bends.

[0009] Preferably, the weld bead between two adjacent flow channels is formed with two end portions, and the two end portions are respectively arranged at the input end and the output end.

[0010] Preferably, the weld is formed with an end at a position corresponding to each bend.

[0011] Preferably, the welding platform is a round platform.

[0012] Preferably, the cover plate is an aluminum plate.

[0013] Preferably, the cover plate is welded to the weld bead and the welding platform by friction stir welding.

[0014] Preferably, the water-cooling heat dissipation structure of the new energy battery housing further includes two connectors, and the two connectors are respectively connected to the input end and the output end.

[0015] Preferably, the input end and the output end are both provided with threaded holes, and the two connectors are respectively threadedly connected in the two threaded holes.

[0016] The utility model provides a water-cooling and heat dissipation structure for a new energy battery shell, and its beneficial effects are: a welding platform is formed at the end of the weld of the water-cooling and heat dissipation structure of the shell, and a circle is welded on the edge of the welding platform on the cover plate to form an annular weld, and the welding is continued along the axis of the weld, and then, the annular weld formed by welding on the welding platform can enhance the welding strength between the end plate and the end of the weld, compared with the straight weld formed at the starting end of the weld, the welding strength of the present application can be increased by two times, the optimization of the welding path greatly improves the welding strength, greatly reduces the risk of leakage, and the service life of the product is longer.

[0017] Other features and advantages of the present invention will be described in detail in the subsequent specific implementation section. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The above and other objects, features and advantages of the present invention will become more apparent through a more detailed description of exemplary embodiments of the present invention in conjunction with the accompanying drawings, wherein the same reference numerals generally represent the same components in the exemplary embodiments of the present invention.

[0019] Figure 1 A three-dimensional structural schematic diagram of an existing water-cooling heat dissipation structure is shown.

[0020] Figure 2 A three-dimensional structural schematic diagram of a water-cooling heat dissipation structure of a new energy battery housing according to an embodiment of the utility model is shown.

[0021] Description of reference numerals:

[0022] 1. Shell; 2. Flow channel; 3. Welding bead; 4. Welding station. DETAILED DESCRIPTION

[0023] The preferred embodiments of the present invention will be described in more detail below. Although the preferred embodiments of the present invention are described below, it should be understood that the present invention can be implemented in various forms and should not be limited by the embodiments described herein. On the contrary, these embodiments are provided to make the present invention more thorough and complete, and to fully convey the scope of the present invention to those skilled in the art.

[0024] like Figure 2 As shown, the utility model provides a new energy battery housing water cooling and heat dissipation structure, the housing water cooling and heat dissipation structure comprises:

[0025] A shell 1, one side of the shell 1 is concavely formed with at least two flow channels 2, an input end and an output end are provided on the shell 1, the inlets of at least two flow channels 2 are connected to the input end, and the outlets of at least two flow channels 2 are connected to the output end, a weld bead 3 is formed on one side of the shell 1 and located at the edge of the flow channel 2, and a welding platform 4 is formed at the end of the weld bead 3;

[0026] The cover plate covers one side of the shell 1 , and a circle is welded on the cover plate along the edge of the welding platform 4 to form an annular weld, and a linear weld is formed along the axis of the weld bead 3 .

[0027] Specifically, in order to solve the problem that the welding weld formed at the starting end of the existing weld can only be a straight line, resulting in the welding force at the starting end being only one point, and the welding of the end plate at the starting end position is prone to defects, which can easily cause the fatigue strength at the starting end position to be weak and prone to leakage, the present application provides a new energy battery shell water-cooling heat dissipation structure, the shell water-cooling heat dissipation structure has a welding platform 4 formed at the end of the weld 3, and the cover plate is welded along the edge of the welding platform 4 to form an annular weld, and the welding is continued along the axis of the weld 3. Then, the annular weld formed by welding on the welding platform 4 can enhance the welding strength between the end plate and the end of the weld 3. Compared with the straight weld formed at the starting end of the weld 3, the welding strength of the present application can be doubled, and the optimization of the welding path greatly improves the welding strength, greatly reduces the risk of leakage, and extends the service life of the product.

[0028] Preferably, the flow channel 2 is distributed along one side of the interior of the shell 1 , the middle side of the interior of the shell 1 , and the remaining three sides of the interior of the shell 1 .

[0029] Specifically, the flow channel 2 is distributed inside the shell 1, and liquid cooling water can flow in the flow channel 2 to achieve heat dissipation for the new energy battery.

[0030] Preferably, the flow channel 2 at the inner middle side of the housing 1 is formed with a plurality of bends.

[0031] Specifically, the flow channel 2 is designed to be curved so that the liquid cooling water can fully contact the heat source and take away the heat more quickly. In addition, from the perspective of temperature uniformity, the temperature uniformity of the entire shell 1 can be better to avoid large temperature differences.

[0032] Preferably, the weld bead 3 between two adjacent flow channels 2 is formed with two end portions, and the two end portions are respectively arranged at the input end and the output end.

[0033] Specifically, welding platforms 4 are formed at both ends of the welding channel between two adjacent flow channels 2 .

[0034] Preferably, the weld bead 3 is formed with an end at a position corresponding to each bend.

[0035] Specifically, a welding platform 4 is formed at the end portion corresponding to the position of each bending portion.

[0036] Preferably, the welding table 4 is a round table.

[0037] Specifically, it is suitable for welding a circle along the edge of the truncated cone.

[0038] Preferably, the cover plate is an aluminum plate.

[0039] Specifically, the aluminum plate is suitable for being welded to the weld bead 3 .

[0040] Preferably, the cover plate is welded to the weld bead 3 and the welding platform 4 by friction stir welding.

[0041] Preferably, the water-cooling heat dissipation structure of the new energy battery housing further includes two joints, which are respectively connected to the input end and the output end.

[0042] Specifically, the flow channel 2 realizes the input and output of liquid cooling water through two joints.

[0043] Preferably, both the input end and the output end are provided with threaded holes, and the two connectors are respectively threadedly connected in the two threaded holes.

[0044] Specifically, the two connectors are installed at the input end and the output end respectively.

[0045] In summary, when assembling the water-cooled heat dissipation structure of the new energy battery shell of the utility model, the cover plate covers one side of the shell 1, and the edge of the upper edge of the welding platform 4 of the cover plate is welded by stir friction welding to form an annular weld, and the welding is continued along the axis of the weld 3. Then, the annular weld formed by welding on the welding platform can enhance the welding strength between the end plate and the end of the weld 3. Compared with the straight weld formed at the starting end of the weld 3 and the force is only applied to one point, the welding strength of the present application can be increased by two times. The optimization of the welding path greatly improves the welding strength, greatly reduces the risk of leakage, and extends the service life of the product.

[0046] The above description of various embodiments of the utility model is exemplary, not exhaustive, and is not limited to the disclosed embodiments. Many modifications and changes will be apparent to those skilled in the art without departing from the scope and spirit of the described embodiments.

Claims

1. A water-cooling heat dissipation structure for a new energy battery housing, characterized in that: The shell water cooling heat dissipation structure comprises: A shell, one side of the shell is concavely formed with at least two flow channels, the shell is provided with an input end and an output end, at least two inlets of the flow channels are connected to the input end, at least two outlets of the flow channels are connected to the output end, a weld bead is formed on one side of the shell and at the edge of the flow channel, and a welding platform is formed at the end of the weld bead; A cover plate is covered on one side of the shell, and a circle of the cover plate is welded along the edge of the welding platform to form an annular weld, and a linear weld is formed along the axis of the weld.

2. A water-cooling heat dissipation structure for a new energy battery housing according to claim 1, characterized in that: The flow channel is distributed along one inner side of the shell, the inner middle side of the shell and the remaining three inner sides of the shell.

3. A water-cooling heat dissipation structure for a new energy battery housing according to claim 2, characterized in that: The flow passage at the inner middle side of the housing is formed with a plurality of bends.

4. A water-cooling heat dissipation structure for a new energy battery housing according to claim 3, characterized in that: The weld bead between two adjacent flow channels is formed with two end portions, and the two end portions are respectively arranged at the input end and the output end.

5. A water-cooling heat dissipation structure for a new energy battery housing according to claim 3, characterized in that: The weld bead is formed with an end at a position corresponding to each bending portion.

6. A water-cooling heat dissipation structure for a new energy battery housing according to claim 1, characterized in that: The welding platform is a round platform.

7. The water-cooling heat dissipation structure of a new energy battery housing according to claim 1 is characterized in that: The cover plate is an aluminum plate.

8. The water-cooling heat dissipation structure of a new energy battery housing according to claim 1, characterized in that: The cover plate is welded to the weld bead and the welding platform by friction stir welding.

9. The water-cooling heat dissipation structure of a new energy battery housing according to claim 1, characterized in that: The water-cooling heat dissipation structure of the new energy battery housing also includes two connectors, which are respectively connected to the input end and the output end.

10. A water-cooling heat dissipation structure for a new energy battery housing according to claim 9, characterized in that: The input end and the output end are both provided with threaded holes, and the two connectors are respectively threadedly connected in the two threaded holes.

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