Large-current connector for detachable and replaceable power supply module

Abstract

The utility model discloses a detachable power supply module heavy current connector, which comprises a plastic seat and a heavy current wiring terminal arranged in the plastic seat, the front end of the heavy current wiring terminal is exposed in a butt joint groove of the plastic seat, and a detachable power supply module is arranged in the butt joint groove. The power module comprises an insulator locked at the bottom of the butt joint groove through a screw and a large-current transmission terminal fixed in the insulator in a penetrating mode, and the large-current transmission terminal and the large-current wiring terminal are fixed in an inserted mode and conducted so that the large-current transmission terminal can serve as a terminal to be used for transmitting large current. When the power supply module needs to be replaced, the screw is directly screwed out to pull out the power supply module relative to the plastic seat, the power supply module is very simple and convenient to disassemble, a new power supply module can be installed at the bottom of the butt joint groove of the plastic seat, then the screw is locked, and the power supply module is very simple and convenient to install.

Description

TECHNICAL FIELD

[0001] The utility model relates to connector technical field especially refers to a can dismantle and change power module heavy current connector. BACKGROUND

[0002] The main supporting field of the connector has new energy, traffic, communication, network, IT, medical treatment, household appliance, military electronic product etc., the rapid development of the product technical level of the supporting field and the rapid growth of its market strongly pull the development of the connector technology. So far, the connector has developed into the product with complete variety, rich variety and specification, various structure type, fine division of professional direction, obvious industry characteristic, standard system specification, serialization and specialization.

[0003] The inventor has proposed a Chinese utility model patent with the application number 202321306132.8, which discloses an energy storage large current connector, which comprises a socket and a plug that are mutually inserted. The plug comprises a plastic seat and positive and negative large current male terminals fixed in the plastic seat. The plastic seat has a ring-shaped insertion part at the front end. The positive and negative large current male terminals are both placed in the ring-shaped insertion part. The end of the positive large current male terminal is fixed with a first glue body, and the end of the negative large current male terminal is fixed with a second glue body. Both the first and second glue bodies are exposed at the port of the ring-shaped insertion part. Correspondingly, the socket comprises an insulating seat and positive and negative large current female terminals fixed in the insulating seat. The end of the positive large current female terminal has a first accommodating groove for the insertion of the positive large current male terminal and the first glue body at the end thereof. The end of the negative large current female terminal has a second accommodating groove for the insertion of the negative large current male terminal and the second glue body at the end thereof.

[0004] However, in actual use, the socket is locked on the power supply device (such as a battery box) by screws. The positive and negative large current female terminals of the socket are both connected to the power supply lines inside the power supply device to realize large current transmission. The front ends of the positive and negative large current female terminals are both provided with insertion grooves for the insertion of the positive and negative large current male terminals of the plug. However, after long-term use, the positive and negative large current female terminals of the socket are damaged due to the insertion and / or transmission of large current of the positive and negative large current male terminals of the plug. The entire socket needs to be disassembled relative to the power supply device, and the soldering tin formed by welding with the power supply lines needs to be handled. The entire replacement process is extremely troublesome, time-consuming and laborious, causing great inconvenience to the user.

[0005] Therefore, the inventor proposes the following technical solution. UTILITY MODEL CONTENTS

[0006] The purpose of this invention is to overcome the shortcomings of the prior art and provide a high-current connector for a replaceable power module.

[0007] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: The replaceable power module high-current connector includes a plastic base and high-current terminals disposed in the plastic base. The front ends of the high-current terminals are exposed in the mating groove of the plastic base. A replaceable power module is also installed in the mating groove. The power module includes an insulator that is fixed to the bottom of the mating groove by screws and a high-current transmission terminal that is inserted and fixed in the insulator. The high-current transmission terminal is plugged into and fixed to the high-current terminal and conducts electricity.

[0008] Furthermore, in the above technical solution, a positioning post is provided at the bottom of the docking groove, and a connecting hole is opened along its front end to the rear of the positioning post; a limiting groove is provided at the rear end of the insulator, and a countersunk hole that penetrates the limiting groove is opened along its front end to the rear of the insulator. The insulator is positioned with the positioning post through the limiting groove, and the screw passes through the countersunk hole and is screwed to the connecting hole.

[0009] Furthermore, in the above technical solution, a metal nut is also embedded and fixed in the connecting hole, and the screw passes through the countersunk hole and is screwed and fixed to the screw hole of the metal nut.

[0010] Furthermore, in the above technical solution, the plastic base has a through-hole mounting groove along its rear end face, the metal nut is embedded and fixed in the mounting groove, and the screw hole of the metal nut is connected to the connecting hole.

[0011] Furthermore, in the above technical solution, the front end of the high current terminal has a smaller recessed portion, and an annular groove is formed between the recessed portion and the bottom of the mating groove; the high current transmission terminal is cylindrical, with its rear end protruding beyond the rear end face of the insulator, and the rear end of the high current transmission terminal is sleeved on the recessed portion and embedded in the annular groove to form a positioning.

[0012] Furthermore, in the above technical solution, the front end of the high current transmission terminal forms multiple elastic arms by opening several slots, and the elastic arms form an elastic conductive space; the front end face of the insulator is provided with a socket that penetrates the elastic conductive space, and the inner diameter of the socket is larger than the inner diameter of the elastic conductive space.

[0013] Furthermore, in the above technical solution, the front end of the high current transmission terminal is fitted with a non-closed metal ring that can open outwards. This metal ring is fitted around the front end of the spring arm to enhance the clamping force of the spring arm.

[0014] Furthermore, in the above technical solution, the outer wall of the spring arm is also provided with a groove, and the metal ring is sleeved in the groove; a guide slope is provided on the inner side of the front end of the spring arm.

[0015] Furthermore, in the above technical solution, the insulator has a through-hole insertion slot at its rear end; the high-current transmission terminal is inserted and fixed in the insertion slot, wherein the rear end of the high-current transmission terminal is provided with several spaced barbs, which are engaged and positioned with the inner wall of the insertion slot.

[0016] Furthermore, in the above technical solution, the bottom of the mating groove of the plastic base is integrally formed with a mating protrusion, and a signal terminal is provided inside the mating protrusion; an outwardly protruding mounting plate is formed on the outer periphery of the front end of the plastic base, and the mounting plate is provided with positioning holes.

[0017] After adopting the above technical solution, this utility model has the following beneficial effects compared with the prior art: This utility model sets the power module as a replaceable structure. In specific use, the insulator of the power module is placed at the bottom of the docking slot and secured with screws. Its assembly structure is simple and stable. The high-current transmission terminal is plugged into and fixed to the high-current wiring terminal, thus serving as a terminal for transmitting high current. Because the insulator is tightened and locked to the plastic base by screws, it ensures that the high-current transmission terminal and the high-current wiring terminal can form a strong-pressure assembly structure, resulting in stable contact and better transmission of high current. When the power module needs to be replaced, simply unscrew the screws to pull the power module out relative to the plastic base. Disassembly is extremely simple and convenient. A new power module can also be installed at the bottom of the docking slot of the plastic base and the screws tightened. Installation is also very simple and convenient, giving this utility model a strong market competitiveness. Attached image description:

[0018] Figure 1 This is a perspective view of the present invention;

[0019] Figure 2 This is a perspective view of the present invention from another angle;

[0020] Figure 3 This is a cross-sectional view of the present invention;

[0021] Figure 4 This is a three-dimensional exploded view of the present invention;

[0022] Figure 5 This is a perspective view of the power module after disassembly of this utility model;

[0023] Figure 6 This is a three-dimensional exploded view of the power module after disassembly.

[0024] Figure 7 This is a perspective view of the power supply module in this utility model;

[0025] Figure 8 This is a perspective view of the power module in this utility model from another angle;

[0026] Figure 9 This is an exploded perspective view of the power module in this utility model. Detailed implementation method:

[0027] The present invention will be further described below with reference to specific embodiments and accompanying drawings.

[0028] See Figures 1-9 As shown, a replaceable power module high-current connector includes a plastic base 1 and high-current terminals 2 disposed in the plastic base 1. The front ends of the high-current terminals 2 are exposed in the mating grooves 11 of the plastic base 1.

[0029] In this embodiment, a replaceable power module 3 is also installed in the docking groove 11. The power module 3 includes an insulator 31 fixed to the bottom of the docking groove 11 by screws 30 and a high-current transmission terminal 32 inserted and fixed in the insulator 31. The high-current transmission terminal 32 is plugged into and fixed to the high-current wiring terminal 2 and conducts through it, forming a terminal for transmitting high current. That is to say, the present invention sets the power module 3 as a replaceable structure. In specific use, the insulator 31 of the power module 3 is set at the bottom of the docking groove 11 and fixed by screws 30. Its assembly structure is simple and stable. The high-current transmission terminal 32 is plugged into and fixed to the high-current wiring terminal 2 and conducts through it, so as to be used as a terminal for transmitting high current. Since the insulator 31 is tightened and locked to the plastic base 1 by screws 30, it is ensured that the high-current transmission terminal 32 can form a strong pressure assembly structure with the high-current wiring terminal 2, and its contact is stable, so as to better transmit high current. When it is necessary to replace the power module 3, simply unscrew the screws to pull the power module 3 out relative to the plastic base 1. The disassembly is extremely simple and convenient. Afterwards, the new power module 3 can be installed at the bottom of the docking groove 11 of the plastic base 1 and the screws can be tightened. The installation is also very simple and convenient, giving this utility model a strong market competitiveness.

[0030] The high-current terminal 2 has a wiring groove at its rear end. After the metal core of the conductor is inserted into the wiring groove, it is fixed by soldering.

[0031] The number of high current transmission terminals 32 and high current wiring terminals 2 are both two, namely, a positive high current transmission terminal and a negative high current transmission terminal, a positive high current wiring terminal and a negative high current wiring terminal. The positive high current transmission terminal is plugged into and fixed to the positive high current wiring terminal and conducts, and the negative high current terminal is plugged into and fixed to the negative high current wiring terminal and conducts.

[0032] The assembly structure of the insulator 31 and the plastic base 1 is as follows:

[0033] The bottom of the docking groove 11 is provided with a positioning post 111, and the positioning post 111 has a connecting hole 112 extending rearward from its front end. The rear end of the insulator 31 is provided with a limiting groove 311, and the insulator 31 has a countersunk hole 312 extending rearward from its front end through the limiting groove 311. The insulator 31 is positioned by fitting the positioning post 111 into the limiting groove 311, and then a screw 30 passes through the countersunk hole 312 and is screwed into the connecting hole 112 to ensure that the insulator 31 is stably installed in the docking groove 11. The cross-section of the positioning post 111 is not circular, for example, the cross-section of the positioning post 111 is rectangular. Correspondingly, the limiting groove 311 is also rectangular, so that after the limiting groove 311 is fitted and positioned with the positioning post 111, the insulator 31 cannot rotate relative to the positioning post 111, thereby ensuring the stability of the assembly structure and the correct positioning of the entire power module 3.

[0034] In some embodiments, a metal nut 12 is also embedded and fixed in the connecting hole 112. After the screw 30 passes through the countersunk hole 312, it is screwed and fixed to the screw hole of the metal nut 12, making the connection more stable.

[0035] The plastic base 1 has a mounting groove 113 with a through connection hole 112 on its rear end face. The metal nut 12 is embedded and fixed in the mounting groove 113, and the screw hole of the metal nut 12 is connected to the connection hole 112.

[0036] In some embodiments, the front end of the high-current terminal 2 is formed with a smaller recess 21, and an annular groove 110 is formed between the recess 21 and the bottom of the docking groove 11; the high-current transmission terminal 32 is cylindrical, with its rear end protruding beyond the rear end face of the insulator 31, and the rear end of the high-current transmission terminal 32 is sleeved on the recess 21 and embedded in the annular groove 110 to form a positioning, so that the power module 3 can be more stably installed at the bottom of the docking groove 11, further ensuring the correct positioning of the entire power module 3, and making the quality of this utility model better.

[0037] The front end of the high-current transmission terminal 32 forms multiple spring arms 322 by opening several slots 321, which together form an elastic conductive space 320. The front end face of the insulator 31 is provided with a socket 310 that passes through the elastic conductive space 320, and the inner diameter of the socket 310 is larger than the inner diameter of the elastic conductive space 320. When the terminal of the mating connector is inserted into the socket 310 and enters the elastic conductive space 320, it will push the spring arms 322 outward, so that the spring arms 322 can generate an elastic force from the outside to the inside, thereby ensuring that the spring arms 322 stably clamp the terminal of the mating connector, ensuring the stability of the contact, so as to better realize the transmission of high current and improve safety.

[0038] In addition, to improve the elasticity of the spring arm 322, the following design is made: a non-closed metal ring 33 that can open outward is sleeved on the front end of the high current transmission terminal 32. The metal ring 33 is sleeved around the front end of the spring arm 322 to enhance the clamping force of the spring arm 322. That is, the metal ring 33 also covers the spring arm 322 to provide an inward force on the spring arm 322, so that the spring arm 322 will not be easily opened, and after being opened, it can form a stronger elastic recovery force, so as to enhance the clamping force of the spring arm 322 in the later stage.

[0039] The metal ring 33 is formed by enclosing a metal sheet, wherein a gap is formed at the contact portion at both ends, so that when the metal ring 33 is opened, the gap will increase, and at the same time, an elastic restoring force from the outside to the inside will be formed.

[0040] The outer wall of the spring arm 322 is also provided with a groove 301, and the metal ring 33 is sleeved in the groove 301 to improve the stability of the assembly structure; the inner side of the front end of the spring arm 322 is provided with a guide slope 302, which plays a guiding role.

[0041] The insulator 31 has a through-hole 310 and an insertion groove 313 at its rear end; the high current transmission terminal 32 is inserted and fixed in the insertion groove 313, wherein the rear end of the high current transmission terminal 32 is provided with a number of spaced barbs 323, which are engaged and positioned with the inner wall of the insertion groove 313 to ensure the stability of the assembly structure.

[0042] The bottom of the docking groove 11 of the plastic base 1 is also integrally formed with a docking protrusion 13, and a signal terminal 4 is also provided in the docking protrusion 13.

[0043] The plastic base 1 has an outwardly protruding mounting plate 14 formed on the outer periphery of its front end. The mounting plate 14 is provided with a positioning hole 141. The mounting plate 14 is used to abut against the outer periphery of the mounting hole after the plastic base 1 is inserted into the mounting hole of the housing, thereby ensuring that the plastic base 1 is not over-inserted into the mounting hole of the housing. Later, the mounting plate 141 is made into contact with the housing by a screw, thereby achieving a locking effect and making the present invention stably installed on the housing.

[0044] In summary, this utility model sets the power module 3 as a replaceable structure. In actual use, the insulator 31 of the power module 3 is placed at the bottom of the docking groove 11 and locked with screws 30. Its assembly structure is simple and stable. The high-current transmission terminal 32 is plugged into and fixed to the high-current wiring terminal 2 and conducts electricity, so as to serve as a terminal for transmitting high current. Since the insulator 31 is tightened and locked to the plastic base 1 by screws 30, it is ensured that the high-current transmission terminal 32 can form a strong pressure assembly structure with the high-current wiring terminal 2, and its contact is stable, so as to better transmit high current. When it is necessary to replace the power module 3, simply unscrew the screws to pull the power module 3 out relative to the plastic base 1. The disassembly is extremely simple and convenient. Afterwards, a new power module 3 can be installed at the bottom of the docking groove 11 of the plastic base 1 and the screws can be tightened. The installation is also very simple and convenient, making this utility model highly competitive in the market.

[0045] Of course, the above description is only a specific embodiment of the present utility model and is not intended to limit the scope of the present utility model. All equivalent changes or modifications made to the structure, features and principles described in the claims of the present utility model should be included in the scope of the claims of the present utility model.

Claims

1. A replaceable power module high-current connector, comprising a plastic base (1) and high-current terminals (2) disposed in the plastic base (1), wherein the front ends of the high-current terminals (2) are exposed in the mating grooves (11) of the plastic base (1), characterized in that, The docking groove (11) is also equipped with a replaceable power module (3). The power module (3) includes an insulator (31) that is locked to the bottom of the docking groove (11) by screws (30) and a high current transmission terminal (32) that is inserted and fixed in the insulator (31). The high current transmission terminal (32) is plugged into and fixed to the high current wiring terminal (2) and conducts electricity.

2. The high-current connector for a replaceable power module according to claim 1, characterized in that: The bottom of the docking groove (11) is provided with a positioning post (111), and the positioning post (111) has a connecting hole (112) extending from its front end to the rear. The rear end of the insulator (31) is provided with a limiting groove (311), and the insulator (31) has a countersunk hole (312) extending from its front end to the rear. The insulator (31) is positioned by fitting the positioning post (111) with the limiting groove (311), and the screw (30) passes through the countersunk hole (312) and is screwed to the connecting hole (112).

3. The high-current connector for a replaceable power module according to claim 2, characterized in that: A metal nut (12) is also embedded and fixed in the connecting hole (112). The screw (30) passes through the countersunk hole (312) and is screwed and fixed to the screw hole of the metal nut (12).

4. The high-current connector for a replaceable power module according to claim 3, characterized in that: The plastic base (1) has a mounting groove (113) with a through connection hole (112) on its rear end face. The metal nut (12) is embedded and fixed in the mounting groove (113), and the screw hole of the metal nut (12) is connected to the connection hole (112).

5. The high-current replaceable power module connector according to any one of claims 1-4, characterized in that: The high-current terminal (2) has a smaller recess (21) at its front end, and an annular groove (110) is formed between the recess (21) and the bottom of the mating groove (11). The high-current transmission terminal (32) is cylindrical, with its rear end protruding beyond the rear end face of the insulator (31). The rear end of the high-current transmission terminal (32) is sleeved on the recess (21) and embedded in the annular groove (110) to form a positioning.

6. The high-current connector for a replaceable power module according to claim 5, characterized in that: The front end of the high current transmission terminal (32) is provided with a plurality of slots (321) to form a plurality of elastic arms (322), which form an elastic conductive space (320) between the elastic arms (322); the front end face of the insulator (31) is provided with a socket (310) that passes through the elastic conductive space (320), and the inner diameter of the socket (310) is larger than the inner diameter of the elastic conductive space (320).

7. The high-current connector for a replaceable power module according to claim 6, characterized in that: The front end of the high current transmission terminal (32) is fitted with a non-closed metal ring (33) that can open outwards. The metal ring (33) is fitted around the front end of the spring arm (322) to enhance the clamping force of the spring arm (322).

8. The high-current connector for a replaceable power module according to claim 7, characterized in that: The outer wall of the spring arm (322) is also provided with a groove (301), and the metal ring (33) is sleeved in the groove (301); the inner side of the front end of the spring arm (322) is provided with a guide slope (302).

9. The high-current connector for a replaceable power module according to any one of claims 1-4, characterized in that: The insulator (31) has a through-hole (310) insertion slot (313) at its rear end; the high current transmission terminal (32) is inserted and fixed in the insertion slot (313), wherein the rear end of the high current transmission terminal (32) is provided with a number of barbs (323) spaced apart, and the barbs (323) are engaged and positioned with the inner wall of the insertion slot (313).

10. The high-current replaceable power module connector according to any one of claims 1-4, characterized in that: The bottom of the docking groove (11) of the plastic base (1) is integrally formed with a docking protrusion (13), and a signal terminal (4) is provided in the docking protrusion (13); the front periphery of the plastic base (1) is formed with an outwardly protruding mounting plate (14), and the mounting plate (14) is provided with a positioning hole (141).

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