A quick-connection short-circuit protection connector for energy storage battery packs

Abstract

This utility model discloses a quick-connection short-circuit protection connector for energy storage battery packs, including a first insulating shell, a connector inserted into the inner wall of the first insulating shell, an insulating seat sleeved on the outer wall of the connector, and the insulating seat fixedly connected to the inner wall of the first insulating shell. A sealing mechanism is provided between the first insulating shell and the connector. This utility model relates to the field of energy storage battery technology. This quick-connection short-circuit protection connector for energy storage battery packs, through the cooperation of a spring, a sealing shell, a connecting rod, a limiting block, a connecting groove, and a limiting groove, achieves a seal between the connector shell and the interface of the energy storage battery, preventing foreign objects such as dust or metal debris from entering the interface through gaps, ensuring tight contact between the energy storage battery interface and the metal connector, ensuring the normal operation of the energy storage battery pack, not only ensuring the working stability of the energy storage battery pack, but also improving the service life of the energy storage battery pack.

Description

Technical Field

[0001] This utility model relates to the field of energy storage battery technology, specifically a quick-connection anti-short-circuit plug for energy storage battery packs. Background Technology

[0002] Energy storage battery packs are energy storage devices composed of multiple individual batteries connected in series, parallel, or series-parallel. They are designed to store and release electrical energy to meet energy supply needs in different scenarios.

[0003] Traditional quick-connect connectors can connect multiple energy storage batteries to form an energy storage battery pack, which can then power other devices.

[0004] However, in actual use, the metal connectors of traditional plug-in components are usually directly exposed. After the operator inserts the metal connector into the interface of the energy storage battery, due to the tiny gap between the connector shell and the interface of the energy storage battery, foreign objects such as dust or metal shavings may enter the interface through the gap and gradually accumulate on the surface of the metal connector. Over time, the accumulated impurities will damage the tight contact of the metal connector, which will lead to an increase in contact resistance, causing abnormal heating in local areas when high current is transmitted, accelerating the aging of insulation materials, and in severe cases, may cause short circuits or equipment shutdown, thereby affecting the normal operation of the entire energy storage battery pack. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a quick-connection short-circuit protection connector for energy storage battery packs. This solves the problem that in practical use, the metal connectors of traditional connectors are usually directly exposed. When workers insert the metal connector into the energy storage battery interface, a tiny gap exists between the connector's outer shell and the battery interface, allowing dust or metal debris to enter the interface and gradually accumulate on the metal connector surface. Over time, this accumulated impurities disrupt the tight contact of the metal connector, leading to increased contact resistance. This causes abnormal heating in localized areas during high-current transmission, accelerates the aging of insulation materials, and in severe cases, may cause short circuits or equipment shutdowns, thus affecting the normal operation of the entire energy storage battery pack.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a quick-connection short-circuit protection connector for an energy storage battery pack, comprising a first insulating shell, a connector inserted into the inner wall of the first insulating shell, an insulating seat sleeved on the outer wall of the connector, the insulating seat being fixedly connected to the inner wall of the first insulating shell, and a sealing mechanism provided between the first insulating shell and the connector; the sealing mechanism includes a spring, a sealing shell, a connecting rod, a limiting block, a connecting groove, and a limiting groove; the spring is sleeved on the outer wall of the insulating seat, and the spring is fixedly connected to the inner wall of the first insulating shell. The inner wall of the spring has a sealing shell attached to its end. The sealing shell is inserted into the inner wall of the first insulating shell and sleeved on the outer wall of the plug. The outer wall of the sealing shell is sleeved on the outer wall of the insulating base. A connecting rod is fixedly connected to the inner wall of the sealing shell. There are two connecting rods. A limit block is fixedly connected to the outer wall of each connecting rod away from the plug. A connecting groove is provided on the side of each connecting rod. The two connecting grooves are respectively opened at the top and bottom of the inner wall of the insulating base. A limit groove is provided on the inner wall of each connecting groove.

[0007] Preferably, a second insulating shell is fixedly connected to the outer wall of the first insulating shell away from the sealing shell. A connecting seat is threadedly connected to the bottom of the second insulating shell. A connecting piece is provided inside the second insulating shell. The connecting piece is fixedly connected to the bottom of the plug. A connecting mechanism is provided below the connecting piece. The connecting mechanism includes a connector, an insulating screw, a first fixing block, and a second fixing block. The connector fits against the bottom of the connecting piece and is inserted into the interior of the connecting seat. Insulating screws are threadedly connected to both sides of the outer wall of the connecting seat. A first fixing block is fixedly connected to the end of one of the insulating screws. The first fixing block is inserted into the through hole of the outer wall of the connector, and the outer wall of the first fixing block extends into the interior of the through hole of the outer wall of the connecting piece. A second fixing block is inserted into the inner wall of the first fixing block. The outer wall of the second fixing block is inserted into the through hole of the outer wall of the connecting piece. The side of the outer wall of the second fixing block away from the first fixing block is fixedly connected to the end of the other insulating screw.

[0008] Preferably, a limiting sleeve is provided below the connector, and the limiting sleeve is inserted into the inner wall of the connector.

[0009] Preferably, the inner wall of the first insulating shell is provided with a sliding groove, and a slider is slidably connected to the inner wall of the sliding groove, and the slider is fixedly connected to the outer wall of the sealing shell.

[0010] Preferably, the side wall of the second insulating shell is provided with an auxiliary groove, and an indicator mark is fixedly connected to the top of the second insulating shell.

[0011] Beneficial effects

[0012] This utility model provides a quick-connection short-circuit protection connector for energy storage battery packs. It offers the following advantages: This quick-connection short-circuit protection connector, through the cooperation of a spring, sealing shell, connecting rod, limiting block, connecting groove, and limiting groove, achieves a seal between the connector shell and the interface of the energy storage battery. This prevents foreign objects such as dust or metal shavings from entering the interface through gaps, ensuring tight contact between the energy storage battery interface and the metal connector. This ensures the normal operation of the energy storage battery pack, not only guaranteeing its operational stability but also extending its service life.

[0013] By using the connector, insulating screw, first fixing block and second fixing block, the connection between the connector and the wire can be disassembled. When the wire is damaged due to aging, wear, accidental pulling, etc., the staff only needs to replace the damaged wire, without replacing the entire connector. This avoids the situation where the entire energy storage battery pack quick connection anti-short circuit connector needs to be replaced due to wire damage, which greatly reduces the cost of equipment maintenance and resource waste. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model;

[0015] Figure 2 for Figure 1 An exterior schematic diagram;

[0016] Figure 3 for Figure 1 A schematic diagram of the middle plug, insulating base, and spring;

[0017] Figure 4 for Figure 1 A schematic diagram of the structure of the insulating screw, the first fixing block, and the second fixing block.

[0018] In the diagram: 1. First insulating shell; 2. Connector; 3. Insulating base; 4. Spring; 5. Sealing shell; 6. Connecting rod; 7. Limiting block; 8. Connecting groove; 9. Limiting groove; 10. Second insulating shell; 11. Connecting base; 12. Connecting piece; 13. Connector head; 14. Insulating screw; 15. First fixing block; 16. Second fixing block; 17. Limiting sleeve; 18. Slide groove; 19. Sliding block; 20. Auxiliary groove; 21. Indicator mark. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] In practical use, the metal connectors of traditional plug-in components are usually directly exposed. After the operator inserts the metal connector into the interface of the energy storage battery, due to the tiny gap between the connector shell and the interface of the energy storage battery, foreign objects such as dust or metal shavings may enter the interface through the gap and gradually accumulate on the surface of the metal connector. Over time, the accumulated impurities will damage the tight contact of the metal connector, leading to an increase in contact resistance. This causes abnormal heating in local areas when high current is transmitted, accelerates the aging of the insulation material, and may even cause short circuits or equipment shutdowns, thus affecting the normal operation of the entire energy storage battery pack.

[0021] In view of this, the present invention provides a quick-connection anti-short-circuit plug for energy storage battery packs. This quick-connection anti-short-circuit plug for energy storage battery packs, through the cooperation of a spring, a sealing shell, a connecting rod, a limiting block, a connecting groove, and a limiting groove, achieves a seal between the plug shell and the interface of the energy storage battery, preventing foreign objects such as dust or metal shavings from entering the interface through gaps, ensuring tight contact between the interface of the energy storage battery and the metal plug, ensuring the normal operation of the energy storage battery pack, not only ensuring the working stability of the energy storage battery pack, but also improving the service life of the energy storage battery pack.

[0022] Those skilled in the art can connect the components in this case sequentially. The specific connection and operation sequence should refer to the working principle described below. The detailed connection methods are well-known technologies in the field. The working principle and process are mainly described below.

[0023] Example 1, by Figure 1-4It is known that a quick-connection short-circuit protection connector for an energy storage battery pack includes a first insulating shell 1, a connector 2 inserted into the inner wall of the first insulating shell 1, an insulating seat 3 sleeved on the outer wall of the connector 2, and the insulating seat 3 fixedly connected to the inner wall of the first insulating shell 1. A sealing mechanism is provided between the first insulating shell 1 and the connector 2. The sealing mechanism includes a spring 4, a sealing shell 5, a connecting rod 6, a limiting block 7, a connecting groove 8, and a limiting groove 9. The spring 4 is sleeved on the outer wall of the insulating seat 3 and fixedly connected to the inner wall of the first insulating shell 1. The end of the spring 4... A sealing shell 5 is attached to the end, the sealing shell 5 is inserted into the inner wall of the first insulating shell 1, the sealing shell 5 is sleeved on the outer wall of the plug 2, the outer wall of the sealing shell 5 is sleeved on the outer wall of the insulating base 3, a connecting rod 6 is fixedly connected to the inner wall of the sealing shell 5, there are two connecting rods 6, and a limit block 7 is fixedly connected to the side of the outer wall of the two connecting rods 6 away from the plug 2. A connecting groove 8 is provided on the side of the two connecting rods 6, and the two connecting grooves 8 are respectively opened at the top and bottom of the inner wall of the insulating base 3. A limit groove 9 is opened on the inner wall of the two connecting grooves 8.

[0024] In the specific implementation process, it is worth noting that the first insulating shell 1 is generally cylindrical, with a flange-like structure machined on one side of its outer wall. A rectangular through-hole is machined in the center of this outer wall. The other side of the outer wall has an open structure, similar to a circular through-hole. Its internal space is similar to a cylinder, and its material can be reinforced nylon. The connector 2 is generally a rod-shaped structure with a rectangular cross-section. Its surface has protrusions and a circular through-hole for easy connection to the energy storage battery interface. Its end also has a circular through-hole for easy connection to other structures. Its material can be silver-plated copper. The insulating base 3 is generally cylindrical, with a rectangular through-slot machined inside. This through-slot corresponds to the rectangular through-hole on the side wall of the first insulating shell 1. The connecting rod 4 can be made of polytetrafluoroethylene (PTFE), and the spring 4 can be made of piano wire. Its elastic coefficient can be selected according to actual needs, as long as it meets the operational requirements. The sealing shell 5 is generally cylindrical, hollow inside, and can be made of polyoxymethylene (POM). One end is open, and the other end is flared. A rectangular through-hole is opened on the outer wall of the flared side, and a rubber sealing gasket is fixedly connected to the outer wall of the flared side. In actual use, the rubber sealing gasket can fit against the outer wall of the energy storage battery to enhance the sealing effect. There are two connecting rods 6, located above and below the connector 2 respectively. They are generally square rod-shaped and can be made of polyethylene. There are two limiting blocks 7, which are generally hemispherical and made of... The connector 2 is made of the same material as the connecting rod 6. Two connecting grooves 8 are provided, located above and below the connector 2 respectively, and their shape is the same as the connecting rod 6. Two limiting grooves 9 are provided, which can accommodate the limiting block 7, and the limiting block 7 can move an extreme distance within the limiting groove 9. In actual use, the operator holds the sealing shell 5 with their index and middle fingers, uses their thumb to press against the outer wall of the connector, and applies slight force to move the sealing shell 5 towards the side closer to the thumb. The spring 4 is compressed, and the operator can then see the front end of the connector 2. The operator aligns the front end of the connector 2 with the interface of the energy storage battery and pushes the connector 2 into the energy storage battery interface with their thumb (the operator's index and middle fingers can release the sealing shell 5). Simultaneously, the sealing... The casing 5 is pressed against the outer wall of the energy storage battery. Under the action of force, the sealing casing 5 moves towards the side closer to the thumb, compressing the spring 4 and causing the connecting rod 6 to be inserted into the interior of the connecting groove 8. At the same time, the connecting rod 6 causes the limiting block 7 to move, gradually bringing the limiting block 7 closer to the connecting groove 8. When the connector 2 is fully inserted into the interior of the energy storage battery interface, the connecting rod 6 is fully inserted into the interior of the connecting groove 8, and the limiting block 7 is engaged with the interior of the limiting groove 9. The limiting block 7 is located inside the limiting groove 9 on the side closer to the thumb. At this time, the operator releases the thumb, the pushing force of the thumb disappears, and the spring 4 slightly rebounds, thereby causing the sealing casing 5 to press against the outer wall of the energy storage battery interface. At this time, the limiting block 7 presses against the other side of the limiting groove 9, limiting the elastic force of the spring 4.To prevent the connected connector 2 from being pulled out by the spring force of spring 4, when the connector needs to be removed, the operator can simply pull it out. When the sealing shell 5 needs to be re-enclosed on the connector 2, the operator can simultaneously and gently pinch the top and bottom of the sealing shell 5. Combined with the elastic potential energy of spring 4, this will cause the limiting block 7 to disengage from the limiting groove 9, thus returning the sealing shell 5 to its original position. Through the cooperation of these various structures, it is possible to effectively prevent foreign objects such as dust or metal shavings from entering the interface through gaps, ensuring tight contact between the energy storage battery interface and the connector 2, ensuring the normal operation of the energy storage battery pack, and improving the working stability and service life of the energy storage battery pack.

[0025] Furthermore, a second insulating shell 10 is fixedly connected to the outer wall of the first insulating shell 1 on the side away from the sealing shell 5. A connecting seat 11 is threadedly connected to the bottom of the second insulating shell 10. A connecting piece 12 is provided inside the second insulating shell 10, and the connecting piece 12 is fixedly connected to the bottom of the plug-in 2. A connecting mechanism is provided below the connecting piece 12. The connecting mechanism includes a connector 13, an insulating screw 14, a first fixing block 15, and a second fixing block 16. The connector 13 fits against the bottom of the connecting piece 12 and is inserted into the interior of the connecting seat 11. Both sides of the outer wall of the connector 11 are threaded with insulating screws 14. The end of one insulating screw 14 is fixedly connected to a first fixing block 15. The first fixing block 15 is inserted into the through hole of the outer wall of the connector 13, and the outer wall of the first fixing block 15 extends into the inside of the through hole of the outer wall of the connecting piece 12. The inner wall of the first fixing block 15 is inserted with a second fixing block 16. The outer wall of the second fixing block 16 is inserted into the through hole of the outer wall of the connecting piece 12. The side of the outer wall of the second fixing block 16 away from the first fixing block 15 is fixedly connected to the end of another insulating screw 14.

[0026] In the specific implementation process, it is worth noting that the second insulating shell 10 is made of the same material as the first insulating shell 1. Its overall structure resembles a cube plus a cylinder, and its outer wall also has a flange structure. The first insulating shell 1 and the second insulating shell 10 can be fixed together with bolts. The bottom of the second insulating shell 10 is machined with external threads, and a connecting seat 11 is threaded onto its bottom. The connecting seat 11 has internal threads, and its material is the same as that of the second insulating shell 10. The interior of the second insulating shell 10 has a '7'-shaped space for placing the connecting piece 12. The connecting piece 12 has a '7'-shaped cross-section and is made of the same material as the connector 2. Its top is fixedly connected to the connector 2 with bolts, facilitating replacement by personnel. The bottom of the connector 13 is machined into an 'L' shape and has a circular through hole. The material of the connector 13 is the same as that of the connector 12. The top of the connector 13 is machined into an 'L' shape and also has a circular through hole. The bottom of the connector 13 has a cylindrical groove for connecting wires. In actual use, the operator can insert the wire into the bottom of the connector 13 and use a tool to press the connector 13 and the wire together. The deformation of the connector 13 achieves the fixing effect. This connection method is just one of many connection methods. The specific connection method can be selected according to the actual situation on site. For example, welding can also be selected. There are two insulating screws 14. The material can be reinforced epoxy resin. The screws are threaded to the outer wall of the connector 11. On both sides, extending into the interior of the connector 11, the ends of the two insulating screws 14 are respectively fixed with a first fixing block 15 and a second fixing block 16. The first fixing block 15 and the second fixing block 16 are made of the same material as the insulating screws 14. The cross-section of the first fixing block 15 is similar to the shape of an 'I', and a circular through hole is machined on the side of its outer wall away from the insulating screw 14. The cross-section of the second fixing block 16 is similar to the shape of a 'T', and its outer wall can be inserted into the inner wall of the first fixing block 15. Both the first fixing block 15 and the second fixing block 16 are inserted into the circular through holes on the side walls of the connector 12 and the connector 13. When the connector 13 needs to be replaced, the operator uses a tool to rotate the two insulating screws 14 clockwise, and the two insulating screws 14 respectively drive their corresponding... The first fixing block 15 and the second fixing block 16 move away from each other until they are completely separated from the circular through-hole on the side wall of the connecting piece 12 and the connector 13. At this point, the operator rotates the connecting seat 11 counterclockwise to move it away from the bottom of the second insulating shell 10. Then, the connector 13 is removed from the inside of the connecting seat 11. After that, a new connector 13 is installed, and the above steps are reversed to connect the connecting piece 12 to the new connector 13. Through the cooperation of the above structures, when the wire is damaged due to aging, wear, accidental pulling, etc., the operator only needs to replace the damaged wire, without replacing the entire connector.This improves the ease of maintenance for the quick-connect short-circuit protection connectors of the energy storage battery pack;

[0027] Furthermore, a limiting sleeve 17 is provided below the connector 13, and the limiting sleeve 17 is inserted into the inner wall of the connector 11.

[0028] In the specific implementation process, it is worth noting that the limiting sleeve 17 can be made of plastic and is used to fit on the outer wall of the wire. It has protrusions processed inside. When it is fitted on the outer wall of the wire, it can be stuck on the insulation of the outer wall of the wire by friction. In addition, the limiting sleeve 17 has a 'T' shaped cross section. Even if the wire comes off the inner wall of the connector 13, it can prevent the wire from being pulled out from the inside of the connector 11, thereby ensuring the safety of the staff and improving the safety of the quick wiring anti-short circuit plug of the energy storage battery pack.

[0029] Example 2, by Figure 1-4 It can be seen that the inner wall of the first insulating shell 1 is provided with a groove 18, and the inner wall of the groove 18 is slidably connected to a slider 19, which is fixedly connected to the outer wall of the sealing shell 5.

[0030] In the specific implementation process, it is worth noting that there are two slide grooves 18, located at the top and bottom of the inner wall of the first insulating shell 1, respectively. Their cross-section is similar to a rectangle. There are two sliders 19, which are made of the same material as the sealing shell 5. Their overall shape is similar to a square block. The sliders 19 can slide inside the slide grooves 18. In actual use, the movement of the sealing shell 5 is limited by the cooperation between the sliders 19 and the slide grooves 18, thereby improving the structural stability of the quick-connection anti-short-circuit plug of the energy storage battery pack.

[0031] Furthermore, an auxiliary groove 20 is provided on the side wall of the second insulating shell 10, and an indicator mark 21 is fixedly connected to the top of the second insulating shell 10.

[0032] In the specific implementation process, it is worth noting that the auxiliary groove 20 is similar to an arc-shaped groove, and its interior is machined with anti-slip protrusions, which conforms to ergonomics. In actual use, the operator can press the auxiliary groove 20 with their thumb for easy force application. The indicator mark 21 is a directional arrow to indicate the insertion direction of the connector 2. The surface of the indicator mark 21 can be sprayed with paint, and the paint can be set in multiple colors to facilitate user differentiation. In actual use, both ends of a wire may be equipped with connectors. In this case, when selecting a connector, the color of the indicator mark 21 can be used to ensure which interface the connector should be plugged into, thereby improving the ease of operation of the quick wiring and short-circuit protection connector of the energy storage battery pack.

[0033] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A short-circuit prevention connector for energy storage battery pack quick wiring, comprising a first insulating shell (1), characterized in that: A connector (2) is inserted into the inner wall of the first insulating shell (1), and an insulating seat (3) is sleeved on the outer wall of the connector (2). The insulating seat (3) is fixedly connected to the inner wall of the first insulating shell (1), and a sealing mechanism is provided between the first insulating shell (1) and the connector (2). The sealing mechanism includes a spring (4), a sealing shell (5), a connecting rod (6), a limiting block (7), a connecting groove (8), and a limiting groove (9); The spring (4) is sleeved on the outer wall of the insulating base (3). The spring (4) is fixedly connected to the inner wall of the first insulating shell (1). The end of the spring (4) is attached to the sealing shell (5). The sealing shell (5) is inserted into the inner wall of the first insulating shell (1). The sealing shell (5) is sleeved on the outer wall of the plug (2). The outer wall of the sealing shell (5) is sleeved on the outer wall of the insulating base (3). The inner wall of the sealing shell (5) is fixedly connected to the connecting rod (6). There are two connecting rods (6). The outer wall of the two connecting rods (6) is fixedly connected to the side away from the plug (2). The side of the two connecting rods (6) is provided with connecting grooves (8). The two connecting grooves (8) are respectively opened at the top and bottom of the inner wall of the insulating base (3). The inner wall of the two connecting grooves (8) is provided with limiting grooves (9).

2. The quick-connect short-circuit protection connector for energy storage battery packs according to claim 1, characterized in that: A second insulating shell (10) is fixedly connected to the outer wall of the first insulating shell (1) away from the sealing shell (5). A connecting seat (11) is threaded to the bottom of the second insulating shell (10). A connecting piece (12) is provided inside the second insulating shell (10). The connecting piece (12) is fixedly connected to the bottom of the plug (2). A connecting mechanism is provided below the connecting piece (12). The connecting mechanism includes a connector (13), an insulating screw (14), a first fixing block (15), and a second fixing block (16); The connector (13) is attached to the bottom of the connecting piece (12). The connector (13) is inserted into the interior of the connecting seat (11). Both sides of the outer wall of the connecting seat (11) are threaded with insulating screws (14). The end of one of the insulating screws (14) is fixedly connected to a first fixing block (15). The first fixing block (15) is inserted into the through hole of the outer wall of the connector (13), and the outer wall of the first fixing block (15) extends into the interior of the through hole of the outer wall of the connecting piece (12). The inner wall of the first fixing block (15) is inserted with a second fixing block (16). The outer wall of the second fixing block (16) is inserted into the through hole of the outer wall of the connecting piece (12). The side of the outer wall of the second fixing block (16) away from the first fixing block (15) is fixedly connected to the end of another insulating screw (14).

3. The quick-connect short-circuit protection connector for energy storage battery packs according to claim 2, characterized in that: A limiting sleeve (17) is provided below the connector (13), and the limiting sleeve (17) is inserted into the inner wall of the connector (11).

4. The quick-connect short-circuit protection connector for energy storage battery packs according to claim 1, characterized in that: The inner wall of the first insulating shell (1) is provided with a sliding groove (18), and a slider (19) is slidably connected to the inner wall of the sliding groove (18). The slider (19) is fixedly connected to the outer wall of the sealing shell (5).

5. A quick-connection short-circuit protection connector for energy storage battery packs according to claim 2, characterized in that: The second insulating shell (10) has an auxiliary groove (20) on its side wall, and an indicator mark (21) is fixedly connected to the top of the second insulating shell (10).

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