Power battery module

Abstract

The utility model discloses a power battery module which comprises a power battery module and a module bin, the power battery module comprises a power battery or a power battery pack formed by electrically connecting at least two power batteries, and the power battery module comprises a first external connection end and a second external connection end, the first external connection end is provided with a first plug connector for electrically connecting the power battery module with the outside, the second external connection end is provided with a second plug connector for electrically connecting the power battery module with the outside, the module bin comprises a bin body, a third plug connector and a fourth plug connector, the third plug connector and the fourth plug connector are fixedly arranged on the bin body, and the power battery module is arranged in the bin body. The first plug connector and the third plug connector are buckled in a plug-in mode and are electrically connected, and the second plug connector and the fourth plug connector are buckled in a plug-in mode and are electrically connected. According to the utility model, the power battery and the module cabin can be quickly assembled.

Description

Technical Field

[0001] The utility model relates to the technical field of batteries, and in particular to a power battery module. Background Art

[0002] Currently, lithium-ion / sodium-ion power batteries have gradually become mainstream products in the new energy industry due to their high energy density, good capacity consistency, and ability to support high-rate charge and discharge. They account for the largest installed capacity in the new energy vehicle sector. However, they face the following common problems:

[0003] When assembling the power battery into the module compartment, the module aluminum or nickel sheet must be connected to the power battery using laser welding or resistance welding, and then the aluminum or nickel sheet must be welded to the module wire connector. This requires at least welding the aluminum or nickel sheet to the power battery and then welding the aluminum or nickel sheet to the module wire connector, making the assembly process complex and hindering the rapid assembly of the power battery and module compartment. Utility Model Content

[0004] The purpose of the utility model is to provide a power battery module, which is conducive to the rapid assembly of the power battery and the module compartment.

[0005] To achieve the above-mentioned objectives, the present invention provides a power battery module, including a power battery module and a module compartment, the power battery module including a power battery or a power battery pack formed by electrically connecting at least two power batteries, the power battery module including a first external terminal and a second external terminal, the first external terminal is provided with a first connector for electrically connecting the power battery module to the outside world, the second external terminal is provided with a second connector for electrically connecting the power battery module to the outside world, the module compartment includes a compartment body and a third connector and a fourth connector fixed to the compartment body, the power battery module is arranged in the compartment body, the first connector and the third connector are plugged in and electrically connected, and the second connector and the fourth connector are plugged in and electrically connected.

[0006] Optionally, one of the first connector and the third connector includes a plug portion, and the middle portions of the opposite side walls of the plug portion are respectively arched outward to form a latching protrusion; the other of the first connector and the third connector includes a slot, and the middle portions of the opposite side walls of the slot are respectively recessed with a latching groove; the plug portion is inserted into the slot, and the latching protrusions are respectively latched in the corresponding slots.

[0007] Optionally, one of the second connector and the fourth connector includes a plug portion, and the middle portions of the opposite side walls of the plug portion are respectively arched outward to form a latching protrusion; the other of the second connector and the fourth connector includes a slot, and the middle portions of the opposite side walls of the slot are respectively recessed with a latching groove; the plug portion is inserted into the slot, and the latching protrusions are respectively latched in the corresponding latching grooves.

[0008] Optionally, the first connector includes a first base plate portion and a first plug portion extending from the first base plate portion, the first base plate portion is attached and fixed to the first external connection end, and the first plug portion is used to be plugged and engaged with the third connector; and / or

[0009] The second plug connector includes a second base plate portion and a second plug portion extending from the second base plate portion. The second base plate portion is attached and fixed to the second external connection end. The second plug portion is used to be plugged and engaged with the fourth plug connector.

[0010] Optionally, the first external connection end is provided with a pole, and the first plug-in connector is fixed on the pole; or, the first external connection end is provided with a pole, and the first plug-in connector is integrally formed on the pole.

[0011] Optionally, the second external connection end has a battery case bottom or a battery cover, and the second connector is fixed on the battery case bottom or the battery cover.

[0012] Optionally, one end of the third connector away from the first connector and one end of the fourth connector away from the second connector are respectively connected to power cables.

[0013] Optionally, the warehouse body includes two side walls arranged opposite to each other, and the third connector and the fourth connector are respectively fixed to the two side walls.

[0014] Optionally, the third connector and the fourth connector are L-shaped as a whole, including a longer first branch and a shorter second branch; one end of the side wall protrudes inward to form a fixed portion, the free end of the first branch is fixed to the fixed portion, and the second branch forms a connecting portion that is connected to the first connector or the second connector.

[0015] Optionally, the first connector, the second connector, the third connector and the fourth connector are formed by integrally processing a metal part.

[0016] In the embodiment of the present utility model, the first external connection end of the power battery module is provided with a first connector, the second external connection end of the power battery module is provided with a second connector, and the module compartment body is fixed with a third connector and a fourth connector. When the power battery module is assembled into the compartment body, the first connector and the third connector are plugged in and electrically connected, and the second connector and the fourth connector are plugged in and electrically connected, thereby realizing the electrical connection between the power battery module and the module compartment. After the third connector and the fourth connector are fixed to the compartment body in advance and electrically connected to the corresponding structure, when assembling the power battery, the power battery module can be reliably assembled in the module compartment by plugging in and engaging the first connector and the third connector and plugging in and engaging the second connector and the fourth connector, while realizing the electrical connection between the power battery module and the module compartment, thereby facilitating the rapid assembly and electrical connection between the power battery module and the module compartment. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the three-dimensional structure of the power battery module of an embodiment of the present utility model.

[0018] Figure 2 It is a schematic diagram of the three-dimensional structure of the module warehouse in an embodiment of the present utility model.

[0019] Figure 3 It is a schematic diagram of the three-dimensional structure of the power battery module of an embodiment of the present utility model.

[0020] Figure 4 It is a schematic diagram of the three-dimensional structure of the first connector / second connector in an embodiment of the present utility model.

[0021] Figure 5 It is a schematic diagram of the three-dimensional structure of the first connector (pole) of another embodiment of the present utility model.

[0022] Figure 6 It is a schematic diagram of the three-dimensional structure of a power battery module according to another embodiment of the present invention. DETAILED DESCRIPTION

[0023] To make the above-mentioned objects, features, and advantages of the present invention more clearly understood, the following detailed description of specific embodiments of the present invention is provided in conjunction with the accompanying drawings. The following description sets forth many specific details to facilitate a full understanding of the present invention. However, the present invention can be implemented in many other ways than those described herein, and those skilled in the art may make similar modifications without departing from the scope of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0024] See also Figures 1 to 6The utility model discloses a power battery module, including a power battery module and a module compartment 1, the power battery module includes a power battery 4 or a power battery pack formed by electrically connecting at least two power batteries 4, the power battery module includes a first external connection end and a second external connection end, the first external connection end is provided with a first connector 41 for electrically connecting the power battery module to the outside world, the second external connection end is provided with a second connector 42 for electrically connecting the power battery module to the outside world, the module compartment 1 includes a compartment body 11 and a third connector 12 and a fourth connector 13 fixed to the compartment body 11, the power battery module is arranged in the compartment body 11, the first connector 41 and the third connector 12 are plugged in and electrically connected, and the second connector 42 and the fourth connector 13 are plugged in and electrically connected.

[0025] In this embodiment of the present invention, a first connector 41 is provided at the first external connection end of the power battery module, a second connector 42 is provided at the second external connection end of the power battery module, and a third connector 12 and a fourth connector 13 are fixedly provided to the housing 11 of the module compartment 1. When the power battery module is assembled into the housing 11, the first connector 41 and the third connector 12 are plugged in and electrically connected, and the second connector 42 and the fourth connector 13 are plugged in and electrically connected, thereby achieving electrical connection between the power battery module and the module compartment 1. After the third connector 12 and the fourth connector 13 are fixed to the compartment body 11 in advance and electrically connected to the corresponding structure, when assembling the power battery 4, the power battery module can be reliably assembled in the module compartment 1 by plugging and snapping the first connector 41 and the third connector 12 and the second connector 42 and the fourth connector 13 together, and the electrical connection between the power battery module and the module compartment 1 can be achieved at the same time, which is conducive to the rapid assembly and electrical connection between the power battery module and the module compartment 1.

[0026] Example 1

[0027] See also Figures 1 to 4 , which discloses an embodiment of the power battery module of the present utility model. In this embodiment, the power battery module includes a power battery 4, and the first external terminal and the second external terminal of the power battery module are the two ends of the power battery 4.

[0028] In this embodiment, specifically, one of the first connector 41 and the third connector 12 includes a plug portion 411, with the middle portions of opposing side walls of the plug portion 411 arched outward to form latching protrusions 412. The other of the first connector 41 and the third connector 12 includes a slot 121, with the middle portions of opposing side walls of the slot 121 recessed outwardly with latching grooves 122. The plug portion 411 is inserted into the slot 121, and the latching protrusions 412 are respectively latched in the corresponding latching grooves 122. Based on this arrangement, the first connector 41 and the second connector 42 can achieve reliable insertion.

[0029] In the example shown in the drawings, the first connector 41 includes a plug portion 411 , and the third connector 12 includes a socket 121 .

[0030] In this embodiment, specifically, one of the second connector 42 and the fourth connector 13 includes a plug portion 421, with the middle portions of opposing side walls of the plug portion 421 arched outward to form latching protrusions 422. The other of the second connector 42 and the fourth connector 13 includes a slot 131, with the middle portions of opposing side walls of the slot 131 recessed outwardly with latching grooves 132. The plug portion 431 is inserted into the slot 131, and the latching protrusions 422 are respectively latched in the corresponding latching grooves 132. Based on this arrangement, the second connector 42 and the fourth connector 13 can achieve reliable insertion.

[0031] In the example shown in the drawings, the second connector 42 includes a plug portion 421 , and the fourth connector 13 includes a slot 131 .

[0032] In this embodiment, specifically, the first connector 41 includes a first substrate portion 413 and a first connector portion 411 extending from the first substrate portion 413 . The first substrate portion 413 is attached and fixed to the first external connection end. The first connector portion 411 is used to be plugged and engaged with the third connector 12 .

[0033] Optionally, the first external terminal may be provided with a pole 43, and the first substrate portion 413 may be fixed to the pole 43, specifically by laser welding. In a specific example, the pole 43 forms a cover 44. In different embodiments, the pole 43 may also be provided at the bottom of the shell.

[0034] Optionally, the first external connection end may be provided with a pole 46, and the first connector 41 may be integrally formed on the pole 46 (eg Figure 5 In a specific example, the pole 46 may be provided on the cover or the bottom of the housing.

[0035] Optionally, the first external connection end may be provided with a cover, and the first substrate portion 413 may be fixed on the cover, specifically by laser welding.

[0036] Optionally, the first external connection end may be provided with a shell bottom, and the first substrate portion 413 may be fixed on the shell bottom, specifically by laser welding.

[0037] In this embodiment, specifically, the second connector 42 includes a second substrate portion 423 and a second connector portion 421 extending from the second substrate portion 423 . The second substrate portion 423 is attached and fixed to the second external connection end. The second connector portion 421 is used to be plugged and engaged with the fourth connector 13 .

[0038] Optionally, the second external connection end may be provided with a pole, and the second substrate portion 423 may be fixed to the pole, specifically by laser welding. The pole may be provided on the cover or the bottom of the shell.

[0039] Optionally, the second external connection terminal may be provided with a pole, and the second substrate portion 423 may be integrally formed on the pole. The pole may be provided on the cover or the bottom of the housing.

[0040] Optionally, the second external connection end may be provided with a cover, and the second substrate portion 423 may be fixed on the cover, specifically by laser welding.

[0041] Optionally, the second external connection end may be provided with a shell bottom 45 , and the second substrate portion 423 may be fixed on the shell bottom 45 , specifically by laser welding.

[0042] In this embodiment, optionally, the first external connection end is provided with a pole 43 , and the first connector 41 is fixed on the pole 43 .

[0043] In this embodiment, optionally, the first external terminal is provided with a pole 43, and the first connector 41 is integrally formed on the pole 43 (eg Figure 5 shown).

[0044] In this embodiment, optionally, the first external connection end may be provided with a cover body, and the first connector may be fixed on the cover body, specifically by laser welding.

[0045] In this embodiment, optionally, the first external connection end may be provided with a shell bottom, and the first connector 41 may be fixed on the shell bottom, specifically by laser welding.

[0046] In this embodiment, optionally, the second external connection end is provided with a pole, and the second connector 42 is fixed on the pole.

[0047] In this embodiment, optionally, the second external connection end is provided with a pole, and the second connector 42 is integrally formed on the pole.

[0048] In this embodiment, optionally, the second external connection end may be provided with a cover, and the second connector 42 may be fixed on the cover, specifically by laser welding.

[0049] In this embodiment, optionally, the second external connection end may be provided with a shell bottom 45 , and the second connector 42 may be fixed on the shell bottom 45 , specifically by laser welding.

[0050] In this embodiment, specifically, one end of the third connector 12 away from the first connector 41 and one end of the fourth connector 13 away from the second connector 42 are respectively connected to corresponding power cables (not shown).

[0051] In this embodiment, specifically, the bin body 11 includes two side walls 111 that are opposite to each other, and the third connector 12 and the fourth connector 13 are fixed to the two side walls 111 respectively.

[0052] More specifically, the third and fourth connectors 12 and 13 are L-shaped as a whole, including a longer first branch 123 / 133 and a shorter second branch 124 / 134. One end of the side wall protrudes inward to form a fixing portion 112. The free end of the first branch 123 / 133 is fixed to the fixing portion 112. The second branch 123 / 133 is formed with a plug-in portion 125 / 135 that plugs into the first connector 41 or the second connector 42. In this specific example, the plug-in portion 125 / 135 is formed with a slot 121 / 131.

[0053] Optionally, the first connector 41 , the second connector 42 , the third connector 12 and the fourth connector 13 are formed by integrally processing metal parts.

[0054] Specifically, the power battery 4 is a cylindrical power battery.

[0055] Example 2

[0056] See also Figure 6 , which discloses another embodiment of the power battery module of the present utility model. This embodiment differs primarily from the first embodiment in that the power battery module includes three power batteries 4, which are connected end-to-end in series. In this embodiment, the first and second external terminals are the outer ends of the power batteries 4 located at the two ends, respectively.

[0057] Specifically, the series connection between two power batteries 4 can also be carried out by plugging and locking the connectors together, which will not be described in detail here. Of course, the series connection between the power batteries 4 is not limited to this method, and the power batteries 4 are not limited to the above-mentioned arrangement when connected in series, as long as the series connection can be achieved. In addition, the power batteries 4 are not limited to being connected in series, but can also be connected in parallel. In addition, the power battery module in the present invention can also include other numbers of power batteries 4, and the connection method of the power batteries 4 is not limited. The focus of the present invention is not on the connection method between the power batteries 4, but on the connection between the power battery module and the module compartment 1.

[0058] The parts of this embodiment that are the same as those of the first embodiment will not be repeated here.

[0059] The above disclosure is only a preferred example of the present invention, and its role is to facilitate the understanding and implementation of those skilled in the art. It certainly cannot be used to limit the scope of rights of the present invention. Therefore, equivalent changes made within the scope of the patent application of the present invention still fall within the scope covered by the present invention.

Claims

1. A power battery module, characterized in that: It includes a power battery module and a module compartment, the power battery module includes a power battery or a power battery pack formed by electrically connecting at least two power batteries, the power battery module includes a first external terminal and a second external terminal, the first external terminal is provided with a first connector for electrically connecting the power battery module to the outside world, and the second external terminal is provided with a second connector for electrically connecting the power battery module to the outside world, the module compartment includes a compartment body and a third connector and a fourth connector fixed to the compartment body, the power battery module is arranged in the compartment body, the first connector and the third connector are plugged in and electrically connected, and the second connector and the fourth connector are plugged in and electrically connected.

2. The power battery module according to claim 1, characterized in that: One of the first connector and the third connector includes a plug portion, and the middle portions of the opposite side walls of the plug portion are respectively arched outward to form a latching protrusion. The other of the first connector and the third connector includes a slot, and the middle portions of the opposite side walls of the slot are respectively concave with a latching groove. The plug portion is inserted into the slot, and the latching protrusions are respectively latched in the corresponding latching grooves.

3. The power battery module according to claim 1, characterized in that: One of the second connector and the fourth connector includes a plug portion, and the middle portions of the opposite side walls of the plug portion are respectively arched outward to form a latching protrusion. The other of the second connector and the fourth connector includes a slot, and the middle portions of the opposite side walls of the slot are respectively concave with a latching groove. The plug portion is inserted into the slot, and the latching protrusions are respectively latched in the corresponding latching grooves.

4. The power battery module according to claim 1, characterized in that: The first plug connector includes a first base plate portion and a first plug portion extending from the first base plate portion, the first base plate portion is attached and fixed to the first external connection end, and the first plug portion is used to be plugged and engaged with the third plug connector; and / or The second plug connector includes a second base plate portion and a second plug portion extending from the second base plate portion. The second base plate portion is attached and fixed to the second external connection end. The second plug portion is used to be plugged and engaged with the fourth plug connector.

5. The power battery module according to claim 1, characterized in that: The first external connection end is provided with a pole, and the first connector is fixed on the pole; or The first external connection end is provided with a pole, and the first connector is integrally formed on the pole.

6. The power battery module according to claim 5, characterized in that: The second external connection end has a battery shell bottom or a battery cover, and the second connector is fixed on the battery shell bottom or the battery cover.

7. The power battery module according to claim 1, characterized in that: One end of the third connector away from the first connector and one end of the fourth connector away from the second connector are respectively connected to power cables.

8. The power battery module according to claim 7, characterized in that: The warehouse body includes two side walls arranged opposite to each other, and the third connector and the fourth connector are respectively fixed on the two side walls.

9. The power battery module according to claim 7, characterized in that: The third connector and the fourth connector are L-shaped as a whole, including a longer first branch and a shorter second branch; one end of the side wall protrudes inward to form a fixed portion, the free end of the first branch is fixed to the fixed portion, and the second branch forms a connecting portion for connecting with the first connector or the second connector.

10. The power battery module according to claim 1, characterized in that: The first connector, the second connector, the third connector and the fourth connector are formed by integrally processing a metal part.

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