Quick-plug connection structure, battery module and battery pack

Abstract

The utility model relates to a quick-plug connection structure, a battery module and a battery pack, the quick-plug connection structure comprises a connection female end and a connection male end, and one end of the connection female end is connected with one end of the connection male end; the connecting female end comprises a female end outer shell and a clamping assembly, the clamping assembly comprises a first reinforcing sleeve, a first copper-aluminum composite bar, a second copper-aluminum composite bar and a second reinforcing sleeve which are sequentially connected from top to bottom, and one end of the clamping assembly penetrates through the first connecting hole and is arranged in the female end outer shell; one end of the first copper-aluminum composite bar and one end of the second copper-aluminum composite bar, which are embedded in the female end housing, are bent to form an arch-shaped contact claw structure. The connecting male end comprises a male end outer shell and a male end copper bar, and one end of the male end copper bar penetrates through the second connecting hole and is arranged in the male end outer shell. The connecting process of the connecting female end and the connecting male end of the quick-plug connecting structure is simple and quick, operation is easy, the mounting and dismounting efficiency is improved, and the connecting stability is ensured.

Description

Technical Field

[0001] The present disclosure relates to the technical field of energy storage battery connections, and particularly to a quick-insert connection structure, a battery module, and a battery pack. Background Art

[0002] In the power output link of existing battery packs and battery modules, high-voltage connectors and high-voltage copper / aluminum busbars are generally relied on to achieve efficient transmission. To ensure the safety of this critical connection, it is crucial to implement strict insulation isolation measures for high-voltage electrical connections. In the current market, bolt fastening technology is mostly used for the assembly of such high-voltage connection components. Although effective, this method has strict requirements for torque control, and the process flow is relatively complex and time-consuming. Especially when operating in a cramped space, it not only increases the assembly difficulty but also poses a risk of accidental bolt detachment, threatening the stability and safety of the overall system.

[0003] After retrieval, it can be known that in existing patents, for example, CN202311458665.2 discloses a quick-plug and unplug large-current copper busbar connector, which includes a connector body composed of a fixed installation part, a signal connector installation part, and an electrical connector installation part; the electrical connector installation part includes at least two copper busbar slots, and copper busbar plugging components are respectively arranged in each copper busbar slot. The battery copper busbar is inserted into the copper busbar slot at the front side position of the connector body and is electrically connected to the copper busbar plugging component; the signal connector installation part includes signal terminal jacks, signal terminals are arranged in the signal terminal jacks, and signal connectors are connected to the signal terminals extending from the rear side; the signal terminals extending from the front side are signal-conducted with the battery signal connector; and the specific structure of the copper busbar plugging component is also disclosed. The above quick-plug and unplug large-current copper busbar connector still has the following defects in practical applications:

[0004] First, the copper busbar plugging component includes a first elastic piece and a second elastic piece arranged oppositely. For the elastic piece, long-term high-frequency plugging and unplugging operations may cause fatigue of the elastic piece material, resulting in a gradual weakening of the elasticity and clamping force of the elastic piece; the repeated friction between the battery copper busbar and the elastic piece will cause wear on the contact surface, increase the contact resistance, and affect the stability and efficiency of electrical conduction; and under extreme use conditions, the elastic piece may break due to uneven stress or material defects, resulting in connection failure.

[0005] Second, the copper busbar plugging component does not set other insulating materials, only has less insulating materials in its own structure. In harsh environments such as high temperature, high humidity, or chemical corrosion, the insulating materials may age rapidly, reducing the insulation performance; and during the plugging and unplugging process, if the operation is improper or affected by external impact, the insulation layer of the structure itself may be damaged, leading to the risk of short circuit or electric leakage. Utility Model Content

[0006] To solve the problems existing in the above-mentioned prior art, the purpose of the present disclosure is to provide a quick-insert connection structure, a battery module, and a battery pack. The connection process between the female connection end and the male connection end of the quick-insert connection structure is simple and fast, without complex operation steps or tools, improving the installation and disassembly efficiency; one end of the first copper-aluminum composite row and the second copper-aluminum composite row embedded in the female end housing body is bent to form an arcuate contact claw structure, which increases the contact area with the male end copper row, further improves the electrical conductivity, and ensures the connection stability; both ends of the clamping component are provided with reinforcing sleeves, enhancing the overall strength of the clamping component, preventing deformation or damage during the connection process, and thus ensuring the connection reliability.

[0007] A quick-insert connection structure according to the present disclosure includes a female connection end and a male connection end, and one end of the female connection end is connected to one end of the male connection end;

[0008] The female connection end includes a female end housing body and a clamping component. The clamping component includes a first reinforcing sleeve, a first copper-aluminum composite row, a second copper-aluminum composite row, and a second reinforcing sleeve connected in sequence from top to bottom. One end of the female end housing body away from the male connection end has a first connection hole adapted to the clamping component. One end of the clamping component passes through the first connection hole and is arranged inside the female end housing body, and the other end of the clamping component is exposed outside the female end housing body;

[0009] One end of the first copper-aluminum composite row and the second copper-aluminum composite row arranged inside the female end housing body are both bent to form an arcuate contact claw structure. The first copper-aluminum composite row and the second copper-aluminum composite row are connected relatively, so that a connection groove is formed at one end of the first copper-aluminum composite row and the second copper-aluminum composite row embedded in the female end housing body;

[0010] The male connection end includes a male end housing body and a male end copper row. One end of the male end housing body away from the female connection end has a second connection hole adapted to the male end copper row. One end of the male end copper row passes through the second connection hole and is arranged inside the male end housing body, and the other end of the male end copper row is exposed outside the male end housing body;

[0011] One end of the female end housing body close to the male connection end and one end of the male end housing body close to the female connection end are both open structures. Through the connection of the female connection end and the male connection end, one end of the male end copper row close to the female connection end is embedded in the connection groove, and the arcuate contact claw structure of the first copper-aluminum composite row and the arcuate contact claw structure of the second copper-aluminum composite row respectively abut against the upper surface and the lower surface of the male end copper row.

[0012] Preferably, both the first reinforcing sleeve and the second reinforcing sleeve are arranged at one end of the clamping assembly close to the inside of the female end housing, and the first reinforcing sleeve is adapted to the outer surface of the first copper-aluminum composite row, and the second reinforcing sleeve is adapted to the outer surface of the second copper-aluminum composite row.

[0013] Preferably, both the female end housing and the male end housing are made of plastic.

[0014] Preferably, one end of the first copper-aluminum composite row away from the female end housing has a third connection hole, and one end of the second copper-aluminum composite row away from the female end housing has a fourth connection hole;

[0015] The first reinforcing sleeve, the first copper-aluminum composite row, the second copper-aluminum composite row, and the second reinforcing sleeve have fifth connection holes arranged at intervals in the width direction of the clamping assembly at the same position, and the first reinforcing sleeve, the first copper-aluminum composite row, the second copper-aluminum composite row, and the second reinforcing sleeve are connected by arranging connecting pieces in the fifth connection holes.

[0016] Preferably, both sides of the female end housing have barb structures.

[0017] Preferably, both sides of the male end housing have clamping holes adapted to the barb structures. The male end housing is connected to the female end housing by the barb structures being snapped into the clamping holes;

[0018] The male end housing is provided with a release pressing structure adapted to the barb structures at the clamping holes. By pressing the release pressing structure, the release pressing structure presses the barb structures to release the connection with the clamping holes.

[0019] Preferably, both inner side surfaces of the male end housing have inwardly protruding anti-fooling rib structures.

[0020] Preferably, the ends of the first copper-aluminum composite row and the second copper-aluminum composite row embedded in the female end housing are copper rows, and the ends away from the female end housing are aluminum rows.

[0021] A battery module includes the quick-insert connection structure as described above. One end of the clamping assembly exposed outside the female end housing is electrically connected to the cell pole column of the battery module.

[0022] A battery pack includes the battery module as described above. The battery module is placed in a copper-aluminum composite box. One end of the quick-insert connection structure away from the battery module penetrates through the side wall of the copper-aluminum composite box, and a part of the quick-insert connection structure is exposed outside the copper-aluminum composite box;

[0023] An insulating sleeve is provided on the part of the clamping assembly exposed outside the female terminal housing.

[0024] A seal is provided at the connection between the female terminal and the male terminal.

[0025] The advantages of the quick-insert connection structure, battery module, and battery pack according to the present disclosure are as follows:

[0026] 1. The quick-insert connection structure of the present disclosure includes a female terminal and a male terminal, and one end of the female terminal is connected to one end of the male terminal; the female terminal includes a female terminal housing and a clamping assembly, and the clamping assembly includes a first reinforcing sleeve, a first copper-aluminum composite row, a second copper-aluminum composite row, and a second reinforcing sleeve connected in sequence from top to bottom. One end of the female terminal housing away from the male terminal has a first connection hole adapted to the clamping assembly. One end of the clamping assembly passes through the first connection hole and is disposed inside the female terminal housing, and the other end of the clamping assembly is exposed outside the female terminal housing; one end of the first copper-aluminum composite row and the second copper-aluminum composite row embedded inside the female terminal housing are both bent to form an arcuate contact claw structure. The first copper-aluminum composite row and the second copper-aluminum composite row are connected relatively, so that a connection groove is formed at one end of the first copper-aluminum composite row and the second copper-aluminum composite row embedded inside the female terminal housing; the male terminal includes a male terminal housing and a male terminal copper row. One end of the male terminal housing away from the female terminal has a second connection hole adapted to the male terminal copper row. One end of the male terminal copper row passes through the second connection hole and is disposed inside the male terminal housing, and the other end of the male terminal copper row is exposed outside the male terminal housing; both ends of the female terminal housing close to the male terminal and both ends of the male terminal housing close to the female terminal are open structures. By connecting the female terminal and the male terminal, one end of the male terminal copper row close to the female terminal is embedded in the connection groove, and the arcuate contact claw structures of the first copper-aluminum composite row and the second copper-aluminum composite row respectively abut against the upper surface and the lower surface of the male terminal copper row. Through the above structure, the connection process between the female terminal and the male terminal is simple and fast, without complex operation steps or tools, improving the installation and disassembly efficiency; one end of the first copper-aluminum composite row and the second copper-aluminum composite row embedded inside the female terminal housing is bent to form an arcuate contact claw structure, which increases the contact area with the male terminal copper row, further improving the electrical conductivity and ensuring the connection stability; reinforcing sleeves are provided at both ends of the clamping assembly, enhancing the overall strength of the clamping assembly and preventing deformation or damage during the connection process, thereby ensuring the reliability of the connection; and after the male terminal copper row is embedded in the connection groove, the arcuate contact claw structures of the first copper-aluminum composite row and the second copper-aluminum composite row respectively abut against the upper surface and the lower surface of the male terminal copper row, forming a tight contact and effectively preventing the occurrence of poor contact or loosening.

[0027] 2. For the female end housing and male end housing of a quick-connect structure of the present disclosure, both are made of plastic. The plastic housing itself is a good insulating material, which can effectively isolate electrical components, prevent current leakage, improve the overall insulation performance. Especially in harsh environments such as high temperature, high humidity or chemical corrosion, the insulation performance of the plastic housing is relatively stable and not easy to age, thus reducing the risk of short circuit or electric leakage. And the plastic housing has a certain mechanical strength and toughness, which can resist external force impacts to a certain extent, protect the internal electrical components from damage. At the same time, the plastic housing can also prevent impurities such as dust and moisture from entering the inside of the connection structure, further improving the protection ability.

[0028] 3. A battery module of the present disclosure includes the quick-connect structure as described above, and the first connection hole is electrically connected to the cell pole of the battery module. The battery module has a quick-connect structure, which makes the connection simple during use. Compared with the traditional output connection method of the battery module, it greatly improves the production efficiency and significantly reduces the risks of poor contact, short circuit and electric shock caused by the negligence of production personnel.

[0029] 4. A battery pack of the present disclosure includes the battery module as described above. The battery module is placed in a copper-aluminum composite box. One end of the quick-connect structure far from the battery module penetrates through the side wall of the copper-aluminum composite box, and a part of the quick-connect structure is exposed outside the copper-aluminum composite box; an insulating sleeve is provided on the part of the clamping assembly exposed outside the female end housing; a sealing member is provided at the connection between the connecting female end and the connecting male end. By adopting the above battery module in the battery pack, compared with the traditional output connection method of the battery pack, it reduces the number of parts and production processes, greatly improves the production efficiency, and significantly reduces the risks of poor contact, short circuit and electric shock caused by the negligence of production personnel. And an insulating sleeve is provided on the quick-connect structure, which can increase the insulation performance of the entire quick-connect structure, thereby improving the insulation performance at the output connection of the battery pack and reducing the risk of electric shock. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 is a schematic structural diagram of a quick-connect structure of the present disclosure;

[0031] Figure 2 is Figure 1 an exploded view of

[0032] Figure 3 is a schematic structural diagram of the connecting female end of a quick-connect structure of the present disclosure;

[0033] Figure 4 is a schematic structural diagram of the connecting male end of a quick-connect structure of the present disclosure;

[0034] Figure 5 is an assembly schematic diagram of the clamping assembly and the male end copper row of a quick-connect structure of the present disclosure;

[0035] Figure 6 is a schematic structural diagram of a battery module according to the present disclosure;

[0036] Figure 7 is a schematic structural diagram of a battery pack according to the present disclosure.

[0037] Explanation of reference numerals:

[0038] 10 - connecting female end; 101 - female end housing; 1011 - barb structure; 1012 - connecting buckle structure; 102 - clamping assembly; 1021 - first reinforcing sleeve; 1022 - first copper-aluminum composite row; 1023 - second copper-aluminum composite row; 1024 - second reinforcing sleeve; 1025 - connecting member;

[0039] 20 - connecting male end; 201 - male end housing; 2011 - release pressing structure; 2012 - anti-fooling rib structure; 202 - male end copper row;

[0040] 30 - battery module;

[0041] 40 - module support plate;

[0042] 50 - copper-aluminum composite box;

[0043] 60 - insulating sleeve. Detailed implementation manners

[0044] As Figure 1 - Figure 7 shown, a quick-connect structure according to the present disclosure includes a connecting female end 10 and a connecting male end 20, and one end of the connecting female end 10 is connected to one end of the connecting male end 20;

[0045] The connecting female end 10 includes a female end housing 101 and a clamping assembly 102. The clamping assembly 102 includes a first reinforcing sleeve 1021, a first copper-aluminum composite row 1022, a second copper-aluminum composite row 1023, and a second reinforcing sleeve 1024 that are connected in sequence from top to bottom. One end of the female end housing 101 away from the connecting male end 20 has a first connection hole adapted to the clamping assembly 102. One end of the clamping assembly 102 passes through the first connection hole and is disposed inside the female end housing 101, and the other end of the clamping assembly 102 is exposed outside the female end housing 101;

[0046] One end of the first copper-aluminum composite row 1022 and the second copper-aluminum composite row 1023 embedded in the female terminal housing 101 is bent to form an arcuate contact claw structure. The first copper-aluminum composite row 1022 and the second copper-aluminum composite row 1023 are connected relatively, so that a connection groove is formed at one end of the first copper-aluminum composite row 1022 and the second copper-aluminum composite row 1023 embedded in the female terminal housing 101; the first copper-aluminum composite row 1022 and the second copper-aluminum composite row 1023 are connected relatively, and one end of the first copper-aluminum composite row 1022 and the second copper-aluminum composite row 1023 is bent to form an arcuate contact claw structure, so that a connection groove is formed between the arcuate contact claw structure of the first copper-aluminum composite row 1022 and the arcuate contact claw structure of the second copper-aluminum composite row 1023;

[0047] The connecting male terminal 20 includes a male terminal housing 201 and a male terminal copper row 202. One end of the male terminal housing 201 away from the connecting female terminal 10 has a second connection hole adapted to the male terminal copper row 202. One end of the male terminal copper row 202 passes through the second connection hole and is arranged inside the male terminal housing 201, and the other end of the male terminal copper row 202 is exposed outside the male terminal housing 201;

[0048] One end of the female terminal housing 101 close to the connecting male terminal 20 and one end of the male terminal housing 201 close to the connecting female terminal 10 are both open structures. By connecting the connecting female terminal 10 and the connecting male terminal 20, one end of the male terminal copper row 202 close to the connecting female terminal 10 is embedded in the connection groove, and the arcuate contact claw structure of the first copper-aluminum composite row 1022 and the arcuate contact claw structure of the second copper-aluminum composite row 1023 respectively abut against the upper surface and the lower surface of the male terminal copper row 202; that is, the male terminal copper row 202 is clamped by the arcuate contact claw structure of the first copper-aluminum composite row 1022 and the arcuate contact claw structure of the second copper-aluminum composite row 1023;

[0049] The above structure makes the connection process between the connecting female terminal 10 and the connecting male terminal 20 simple and fast, without complex operation steps or tools, improving the installation and disassembly efficiency; one end of the first copper-aluminum composite row 1022 and the second copper-aluminum composite row 1023 embedded in the female terminal housing 101 is bent to form an arcuate contact claw structure. This design increases the contact area with the male terminal copper row 202, further improves the electrical conductivity, and ensures the connection stability; both ends of the clamping assembly 102 are provided with reinforcing sleeves, enhancing the overall strength of the clamping assembly 102, preventing deformation or damage during the connection process, thus ensuring the connection reliability; and after the male terminal copper row 202 is embedded in the connection groove, the arcuate contact claw structures of the first copper-aluminum composite row 1022 and the second copper-aluminum composite row 1023 respectively abut against the upper surface and the lower surface of the male terminal copper row 202, forming a tight contact, effectively preventing the occurrence of poor contact or loosening;

[0050] When manufacturing the female end housing 101 and the male end housing 201, they can be integrally injection-molded according to the above structure, that is, injecting molten plastic or other injectable materials into the mold at one time, and directly forming a complete product after cooling and solidification. This manufacturing process has the advantages of high production efficiency, low manufacturing cost, high product precision, and compact structure.

[0051] Furthermore, in this embodiment, both the first reinforcing sleeve 1021 and the second reinforcing sleeve 1024 are disposed at one end of the clamping assembly 102 close to the inside of the female end housing 101, and the first reinforcing sleeve 1021 is adapted to the outer surface of the first copper-aluminum composite row 1022, and the second reinforcing sleeve 1024 is adapted to the outer surface of the second copper-aluminum composite row 1023;

[0052] Both the first reinforcing sleeve 1021 and the second reinforcing sleeve 1024 are made of steel. By respectively disposing the steel-made first reinforcing sleeve 1021 and the second reinforcing sleeve 1024 on the outer surfaces of the first copper-aluminum composite row 1022 and the second copper-aluminum composite row 1023, the clamping force of the arcuate contact claw structures of the first copper-aluminum composite row 1022 and the second copper-aluminum composite row 1023 on the male end copper row 202 can be increased, the electrical conductivity can be further improved, and the connection stability can be ensured.

[0053] Furthermore, in this embodiment, both the female end housing 101 and the male end housing 201 are plastics; specifically, flame-retardant, insulating, and high-temperature-resistant plastics are used. For example, flame-retardant ABS plastics can be selected. Flame-retardant ABS plastics are a new type of material made by adding flame retardants to ordinary ABS plastics. They not only retain the original advantages of ABS plastics such as high strength, high toughness, good wear resistance, and chemical resistance, but also have excellent flame-retardant properties; other plastics with the same functions can also be selected;

[0054] Using a plastic housing, which is a good insulating material itself, can effectively isolate electrical components, prevent current leakage, improve the overall insulation performance. Especially in harsh environments such as high temperature, high humidity, or chemical corrosion, the insulation performance of the plastic housing is relatively stable and not easy to age, thereby reducing the risk of short circuit or electric leakage; and the plastic housing has a certain mechanical strength and toughness, can resist external force impacts to a certain extent, protect the internal electrical components from damage. At the same time, the plastic housing can also prevent impurities such as dust and moisture from entering the inside of the connection structure, further improving the protection ability.

[0055] Furthermore, in this embodiment, one end of the first copper-aluminum composite row 1022 away from the female end housing 101 has a third connection hole, and one end of the second copper-aluminum composite row 1023 away from the female end housing 101 has a fourth connection hole; the third connection hole and the fourth connection hole are used to connect with the battery cell, align with the battery cell pole through the fourth connection hole, and connect with the battery cell pole through the first third connection hole;

[0056] The first reinforcing sleeve 1021, the first copper-aluminum composite row 1022, the second copper-aluminum composite row 1023, and the second reinforcing sleeve 1024 have fifth connection holes arranged at intervals in the width direction of the clamping assembly 102 at the same position, and the first reinforcing sleeve 1021, the first copper-aluminum composite row 1022, the second copper-aluminum composite row 1023, and the second reinforcing sleeve 1024 are connected by arranging a connecting piece 1025 in the fifth connection holes; the connecting piece 1025 can be a rivet; the optimal number of the fifth connection holes is three, and the three fifth connection holes are arranged at intervals in the width direction of the clamping assembly 102. Similarly, three rivets are also selected, and the rivets penetrate through the fifth connection holes to connect the first reinforcing sleeve 1021, the first copper-aluminum composite row 1022, the second copper-aluminum composite row 1023, and the second reinforcing sleeve 1024 together.

[0057] Furthermore, in this embodiment, both sides of the female end housing 101 have barb structures 1011.

[0058] Furthermore, in this embodiment, both sides of the male end housing 201 have clamping holes adapted to the barb structures 1011. The male end housing 201 is connected to the female end housing 101 by the barb structures 1011 being snapped into the clamping holes; when the male end housing 201 is connected to the female end housing 101, the female end housing 101 is embedded in the male end housing 201, and the barb structures 1011 on both sides of the female end housing 101 are respectively snapped into the clamping holes on both sides of the male end housing 201, and the barb structures 1011 are stuck on the clamping holes so that the male end housing 201 and the female end housing 101 are firmly connected;

[0059] The male end housing 201 is provided with a loosening pressing structure 2011 adapted to the barb structures 1011 at the clamping holes. By pressing the loosening pressing structure 2011, the loosening pressing structure 2011 presses the barb structures 1011 to loosen the connection with the clamping holes; since the clamping holes are arranged on both sides of the male end housing 201, the loosening pressing structure 2011 is also on both sides of the male end housing 201. Therefore, when it is necessary to disassemble the male end housing 201 and the female end housing 101, by pressing the loosening pressing structures 2011 on both sides of the male end housing 201, the loosening pressing structures 2011 on both sides respectively press the barb structures 1011 stuck on the clamping holes on both sides, and the barb structures 1011 will immediately disengage from the clamping holes. At this time, the connection between the male end housing 201 and the female end housing 101 can be loosened.

[0060] Further, in this embodiment, anti-fooling rib structures 2012 protruding inwards are provided on both inner side surfaces of the male end housing 201; anti-fooling rib structures 2012 in the shape of long strips protruding inwards are provided on both inner side surfaces of the male end housing 201, which play a guiding role when the male end housing 201 is connected to the female end housing 101, prevent installation misalignment, and achieve the anti-fooling effect.

[0061] Further, in this embodiment, the ends of the first copper-aluminum composite row 1022 and the second copper-aluminum composite row 1023 embedded in the female end housing 101 are copper rows, and the ends far from the female end housing 101 are aluminum rows; that is, the copper row part is a bow-shaped contact claw structure, and the aluminum row part is used to connect to the battery cell.

[0062] When the copper-aluminum composite row with this structure is used in the quick-insert connection structure, compared with the traditional method of first welding the output aluminum row to the battery cell and then using screws to lock the copper row to other places, the process is relatively simple, reducing risks such as poor contact caused by insufficient screw torque and easy electric shock to operators, and effectively reducing the situation of improper operation and misoperation during work.

[0063] A battery module includes the quick-insert connection structure as described above. One end of the clamping assembly 102 exposed outside the female end housing 101 is electrically connected to the electrode post of the battery cell of the battery module 30.

[0064] The fourth connection hole of the second copper-aluminum composite row 1023 is used to align with the electrode post of the battery cell, and then the third connection hole of the first copper-aluminum composite row 1022 is connected to the electrode post of the battery cell. The connection can be selected by welding.

[0065] The battery module 30 is placed on the module support plate 40. In order to further stabilize the connection between the quick-insert connection structure and the battery module 30, a connecting buckle structure 1012 protruding downwards is provided below the female end housing 101, and a support plate buckle hole is provided on the side wall of the module support plate 40. The connecting buckle structure 1012 is snapped into the support plate buckle hole, which can further stabilize the connection between the quick-insert connection structure and the battery module 30 and reduce the situation of falling off due to vibration.

[0066] The battery module 30 having a quick connection structure makes the connection simple during use. Compared with the traditional battery module output connection method, the production efficiency is greatly improved, and the risks of poor contact, short circuit, and electric shock caused by the negligence of production personnel are greatly reduced.

[0067] A battery pack includes the battery module 30 as described above. The battery module 30 is placed inside a copper-aluminum composite box 50. One end of the quick-connect structure away from the battery module 30 penetrates through the side wall of the copper-aluminum composite box 50, and a part of the quick-connect structure is exposed outside the copper-aluminum composite box 50. The quick-connect structure is connected to the side wall of the copper-aluminum composite box 50 by bolts, and a gasket is provided at the connection.

[0068] An insulating sleeve 60 is provided on the part of the clamping assembly 102 exposed outside the female terminal housing 101. The setting of the insulating sleeve 60 can increase the insulation performance of the entire quick-connect structure.

[0069] A seal is provided at the connection between the connecting female end 10 and the connecting male end 20. The seal is a sealing strip, and the sealing grade needs to reach above IP67.

[0070] The battery pack adopts the above battery module. The above battery module includes a quick-connect structure. Compared with the traditional output connection method of the battery pack, the number of parts and production processes are reduced, the production efficiency is greatly improved, and the risks of poor contact, short circuit, and electric shock caused by the negligence of production personnel are greatly reduced. And an insulating sleeve is provided on the quick-connect structure, which can increase the insulation performance of the entire quick-connect structure, thereby improving the insulation performance at the output connection of the battery pack and reducing the risk of electric shock.

[0071] In summary, when a quick-connect structure connects the connecting female end 10 and the connecting male end 20, that is, connects the male terminal housing 201 and the female terminal housing 101. By embedding the female terminal housing 101 into the male terminal housing 201, the barb structures 1011 on both sides of the female terminal housing 101 are respectively snapped into the clamping holes on both sides of the male terminal housing 201, and the barb structures 1011 are stuck on the clamping holes, so that the male terminal housing 201 and the female terminal housing 101 are firmly connected. Then, the end of the male busbar 202 close to the connecting female end 10 is embedded into the connection groove. The arcuate claw structures of the first copper-aluminum composite busbar 1022 and the second copper-aluminum composite busbar 1023 respectively abut against the upper surface and the lower surface of the male busbar 202 to realize the electrical connection between the connecting female end 10 and the connecting male end 20. When disassembling the connecting female end 10 and the connecting male end 20, that is, disassembling the male terminal housing 201 and the female terminal housing 101. By pressing the release pressing structures 2011 on both sides of the male terminal housing 201, the release pressing structures 2011 on both sides respectively press the barb structures 1011 stuck on the clamping holes on both sides. The barb structures 1011 will immediately disengage from the clamping holes. At this time, the connection between the male terminal housing 201 and the female terminal housing 101 can be loosened. At this time, the male busbar 202 can be disengaged from the connection groove by an external force to complete the disconnection between the connecting female end 10 and the connecting male end 20. The quick-connect structure with this kind of structure makes the connection process simple and fast, and improves the installation and disassembly efficiency.

[0072] A battery module includes the quick-insert connection structure as described above. The usage method of the quick-insert connection structure is as described above. One end of the clamping component 102 exposed outside the female end housing 101 is electrically connected to the cell terminal of the battery module 30. And the connection buckle structure 1012 below the female end housing 101 is snapped into the support plate buckle hole of the module support plate 40, which can further stabilize the connection between the quick-insert connection structure and the battery module 30. The battery module 30 with this structure can greatly improve the production efficiency and significantly reduce the risks of poor contact, short circuit, and electric shock caused by the negligence of production personnel.

[0073] A battery pack includes the battery module 30 as described above. The battery module 30 is placed in the copper-aluminum composite box 50. One end of the quick-insert connection structure away from the battery module 30 penetrates through the side wall of the copper-aluminum composite box 50, and a part of the quick-insert connection structure is exposed outside the copper-aluminum composite box 50. The quick-insert connection structure is connected to the side wall of the copper-aluminum composite box 50 by bolts, and a sealing gasket is provided at the connection. An insulating sleeve 60 is provided on the part of the clamping component 102 exposed outside the female end housing 101. A sealing member is provided at the connection between the connection female end 10 and the connection male end 20. The copper-aluminum composite box 50 can hold a number of battery modules 30, and the setting method is as described above. The battery pack with this structure can reduce the number of parts and production processes, greatly improve the production efficiency, and significantly reduce the risks of poor contact, short circuit, and electric shock caused by the negligence of production personnel.

[0074] In the description of the present disclosure, it should be understood that the orientation or positional relationships indicated by orientation words such as "front, rear, upper, lower, left, right", "lateral, vertical, horizontal" and "top, bottom" are usually based on the orientation or positional relationships shown in the drawings. It is only for the convenience of describing the present disclosure and simplifying the description. Without contrary description, these orientation words do not indicate and imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the protection scope of the present disclosure.

[0075] For those skilled in the art, various corresponding changes and deformations can be made according to the technical solutions and concepts described above, and all these changes and deformations should fall within the protection scope of the claims of the present disclosure.

Claims

1. A quick-insert connection structure, characterized in that, It includes a connecting female end (10) and a connecting male end (20), with one end of the connecting female end (10) connected to one end of the connecting male end (20). The connecting female end (10) includes a female end housing (101) and a clamping assembly (102). The clamping assembly (102) includes a first reinforcing sleeve (1021), a first copper-aluminum composite row (1022), a second copper-aluminum composite row (1023), and a second reinforcing sleeve (1024) connected in sequence from top to bottom. One end of the female end housing (101) away from the connecting male end (20) has a first connection hole adapted to the clamping assembly (102). One end of the clamping assembly (102) passes through the first connection hole and is disposed inside the female end housing (101), and the other end of the clamping assembly (102) is exposed outside the female end housing (101). One end of the first copper-aluminum composite row (1022) and the second copper-aluminum composite row (1023) disposed inside the female end housing (101) are both bent to form an arcuate contact claw structure. The first copper-aluminum composite row (1022) and the second copper-aluminum composite row (1023) are connected relatively, so that a connection groove is formed at one end of the first copper-aluminum composite row (1022) and the second copper-aluminum composite row (1023) embedded inside the female end housing (101). The connecting male end (20) includes a male end housing (201) and a male end copper row (202). One end of the male end housing (201) away from the connecting female end (10) has a second connection hole adapted to the male end copper row (202). One end of the male end copper row (202) passes through the second connection hole and is disposed inside the male end housing (201), and the other end of the male end copper row (202) is exposed outside the male end housing (201). One end of the female end housing (101) close to the connecting male end (20) and one end of the male end housing (201) close to the connecting female end (10) are both open structures. Through the connection of the connecting female end (10) and the connecting male end (20), one end of the male end copper row (202) close to the connecting female end (10) is embedded in the connection groove, and the arcuate contact claw structure of the first copper-aluminum composite row (1022) and the arcuate contact claw structure of the second copper-aluminum composite row (1023) respectively abut against the upper surface and the lower surface of the male end copper row (202).

2. The quick-connect structure according to claim 1, wherein The first reinforcing sleeve (1021) and the second reinforcing sleeve (1024) are both disposed at one end of the clamping assembly (102) close to the inside of the female end housing (101), and the first reinforcing sleeve (1021) is adapted to the outer surface of the first copper-aluminum composite row (1022), and the second reinforcing sleeve (1024) is adapted to the outer surface of the second copper-aluminum composite row (1023).

3. The quick-insert connection structure according to claim 1, wherein, The female end housing (101) and the male end housing (201) are both made of plastic.

4. The quick-insert connection structure according to claim 2, wherein One end of the first copper-aluminum composite row (1022) away from the mother-end housing (101) has a third connection hole, and one end of the second copper-aluminum composite row (1023) away from the mother-end housing (101) has a fourth connection hole; The first reinforcing sleeve (1021), the first copper-aluminum composite row (1022), the second copper-aluminum composite row (1023) and the second reinforcing sleeve (1024) have fifth connection holes arranged at intervals along the width direction of the clamping assembly (102) at the same position, and the first reinforcing sleeve (1021), the first copper-aluminum composite row (1022), the second copper-aluminum composite row (1023) and the second reinforcing sleeve (1024) are connected by arranging a connecting piece (1025) in the fifth connection hole.

5. The quick-insert connection structure according to claim 1, wherein, Both sides of the mother-end housing (101) have barb structures (1011).

6. The quick-insert connection structure according to claim 5, characterized in that Both sides of the male-end housing (201) have clamping holes adapted to the barb structures (1011). By inserting the barb structures (1011) into the clamping holes, the male-end housing (201) is connected to the mother-end housing (101); The male-end housing (201) is provided with a loosening pressing structure (2011) adapted to the barb structures (1011) at the clamping holes. By pressing the loosening pressing structure (2011), the loosening pressing structure (2011) presses the barb structures (1011) to release the connection with the clamping holes.

7. The quick-connecting structure according to claim 6, wherein Both inner side surfaces of the male-end housing (201) have anti-fooling rib structures (2012) protruding inwards.

8. The quick-insert connection structure according to claim 1, wherein, The ends of the first copper-aluminum composite row (1022) and the second copper-aluminum composite row (1023) embedded in the mother-end housing (101) are copper rows, and the ends away from the mother-end housing (101) are aluminum rows.

9. A battery module, comprising the quick-insert connection structure according to any one of claims 1-8, characterized in that, One end of the clamping assembly (102) exposed outside the mother-end housing (101) is electrically connected to the cell pole column of the battery module (30).

10. A battery pack, comprising the battery module according to claim 9, characterized in that, The battery module (30) is placed in a copper-aluminum composite box (50). One end of the quick-insert connection structure away from the battery module (30) penetrates through the side wall of the copper-aluminum composite box (50), and a part of the quick-insert connection structure is exposed outside the copper-aluminum composite box (50); An insulating sleeve (60) is provided on the part of the clamping assembly (102) exposed outside the mother-end housing (101); A sealing member is provided at the connection between the connection mother-end (10) and the connection male-end (20).

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