connector
The connector design with integrated guide shell and assembly shell portions addresses the issue of vertical installation challenges in battery packs by ensuring stable guiding and reducing guide failure risks, enhancing installation efficiency and extending connector life.
Patent Information
- Application Number
- JP2025546385
- Authority / Receiving Office
- JP · JP
- Patent Type
- Applications
- Current Assignee / Owner
- Priority Date
- 2023-02-27
- Filing Date
- 2024-02-21
- Publication Date
- 2026-02-13
AI Technical Summary
Battery packs cannot be installed completely vertically during assembly, leading to collision forces between guide posts and guide holes, which can cause damage and malfunction of the guiding function.
A connector design featuring a first plug core with a guide shell portion and a second plug core with an assembly shell portion, where the cross-sectional area of the assembly shell portion is larger than the guide shell portion, allowing for a guide gap and incorporating guide slopes and ribs to facilitate alignment and insertion without separate guide structures.
Ensures stable guiding effect, reduces the risk of guide failure, extends connector life, and simplifies installation by eliminating the need for separate guide structures, while improving material utilization and reducing manufacturing costs.
Smart Images

Figure 2026505439000001_ABST
Abstract
Description
[Technical Field]
[0001] TECHNICAL FIELD The present disclosure relates to the technical field of electrical devices, and more particularly to connectors. [Background technology]
[0002] Connectors play an important role in the fields of current and signal transmission as a conductive structure between two devices or systems. For example, a plug-in connection is used to connect energy storage battery packs, which generally consists of two terminals. Usually, one terminal is fixedly installed on the mounting plate of the battery pack, and the other terminal is a floating terminal. The electrical connection of the battery pack is realized by inserting these two terminals.
[0003] To ensure smooth insertion, guide structures such as guide posts and guide holes are usually machined separately on both sides of the plug core to reduce the possibility of the two bodies becoming misaligned when plugged in. However, battery packs are relatively heavy and cannot be installed perfectly vertically during assembly, which can cause collision forces between the guide posts and guide holes during installation, making the guide posts prone to breakage and causing the guide function to malfunction. Summary of the Invention
[0004] The object of the present invention is to provide a connector that solves the problem in the prior art that battery packs are relatively heavy and cannot be installed completely vertically during assembly, resulting in a collision force between the guide post and the guide hole during installation, making the guide post prone to damage and causing a breakdown in the guiding function.
[0005] To achieve this goal, the present invention adopts the following technical solutions:
[0006] A connector comprising a first plug core and a second plug core, the first plug core being used to connect to a first device and the second plug core being used to connect to a second device, the first plug core comprising a first body and a guide shell portion, the guide shell portion being provided on the first body, and a female socket for attaching a male pin being provided within the guide shell portion, the second plug core comprising a second body and an assembly shell portion, the assembly shell portion being provided on the second body, and being inserted into and fitted with the guide shell portion, and a male socket being inserted into and fitted with the female socket being provided within the assembly shell portion.
[0007] Optionally, the cross-sectional area of the assembly shell portion is larger than the cross-sectional area of the guide shell portion, and a guide gap for inserting the guide shell portion is formed between the inside of the assembly shell portion and the male socket, and the inner wall of the assembly shell portion is in slidable contact with the outer wall of the guide shell portion.
[0008] Optionally, the outer wall of the guide shell is provided with a guide ramp that slidably fits with the assembly shell.
[0009] Optionally, a plurality of grooves are provided on the outer wall of the guide shell, and a guide rib is formed between two adjacent grooves.
[0010] Optionally, an inner wall of the assembly shell is provided with an assembly ramp that slidably fits with the guide shell.
[0011] Optionally, a seal groove for mounting a seal ring is provided on the outer wall of the guide shell, and the seal ring abuts against the inner wall of the assembly shell to seal the gap between the assembly shell and the guide shell.
[0012] Optionally, said first body is integrally formed with said female socket and said second body is integrally formed with said male socket.
[0013] Optionally, said first plug core is capable of floating relative to said first device within a set gap, said set gap being ±3.2 mm.
[0014] The beneficial effects of the present invention are as follows: By providing the guide shell portion and the assembly shell portion, when connecting the first device and the second device, it is only necessary to align the first main body and the second main body and insert the guide shell portion into the assembly shell portion, and the guiding action of the guide shell portion and the assembly shell portion allows the first plug core and the second plug core to be inserted and fitted together. In this way, when inserting the first plug and the second plug, the guiding relationship between the guide shell portion and the assembly shell portion is utilized to quickly complete the insertion, and because the guide shell portion and the assembly shell portion are formed by protruding extensions of the first main body and the second main body, respectively, there is no need to provide a separate guide structure for the first plug core and the second plug core, which effectively ensures the guiding effect of the guide structure, reduces the possibility of guide function failure, ensures the functional stability of the connector, and helps to extend the service life of the connector. [Brief explanation of the drawings]
[0015] [Figure 1] 1 is a schematic diagram of the structure of a connector according to a first embodiment of the present invention. [Figure 2] 1 is a cross-sectional view of a connector according to a first embodiment of the present invention. [Figure 3] 1 is a schematic view of the structure of a first main body of a connector according to a first embodiment of the present invention. [Figure 4] 3 is a schematic diagram of the structure of a second main body of the connector according to the first embodiment of the present invention. FIG. DETAILED DESCRIPTION OF THE INVENTION
[0016] The present invention will be described in more detail below with reference to the drawings and embodiments. It is understood that the embodiments described herein are for the purpose of explaining the present invention and are not intended to limit the present invention. It should also be noted that, for ease of explanation, the drawings do not show all structures, but only parts relevant to the present invention.
[0017] In describing the present invention, unless otherwise expressly specified and limited, the terms "coupled," "connected," and "fixed" should be understood in a broad sense. For example, they may be fixedly coupled or detachably coupled, or integral, may be mechanically or electrically coupled, may be directly connected or indirectly connected via an intermediate medium, or may be communication within or interaction between two components. Those skilled in the art can understand the specific meanings of the above terms in this disclosure according to the specific circumstances.
[0018] In the present invention, unless otherwise explicitly specified and defined, a first element being "above" or "below" a second element may mean that the first and second elements are in direct contact with each other, or that the first and second elements are not in direct contact but are in contact via another element between them. Furthermore, a first element being "above," "above," or "on top" of a second element may mean that the first element is directly above or diagonally above the second element, or may simply mean that the first element is at a higher horizontal level than the second element. A first element being "below," "below," or "below" a second element may mean that the first element is directly below or diagonally below the second element, or may simply mean that the first element is at a lower horizontal level than the second element.
[0019] In the description of the present embodiment, directional or positional relationships such as "upper," "lower," and "right" are directional or positional relationships shown based on the drawings and are used only to facilitate the description and simplify the operation. They do not explicitly or implicitly state that the indicated devices or elements must have a specific orientation or be constructed or operated in a specific orientation, and therefore should not be understood as limitations of the present invention. Note that the terms "first" and "second" are used merely for distinction in the description and do not have any special meaning.
[0020] An embodiment of the present invention provides a connector that does not require a separate guide structure and can achieve the insertion and mating of a plug core by guiding it within the connector body. This reduces the overall volume of the connector and the amount of material used, thereby not only reducing the manufacturing cost of the connector but also improving the utilization rate of materials.
[0021] As shown in Figures 1 and 2, the connector includes a first plug core 1 and a second plug core 2. The first plug core 1 is used to connect to a first device, and the second plug core 2 is used to connect to a second device. The first plug core 1 includes a first body 11 and a guide shell portion 12. The guide shell portion 12 is provided on the first body 11, and a female socket 112 for attaching a male pin is provided in the guide shell portion 12. The second plug core 2 includes a second body 21 and an assembly shell portion 22. The assembly shell portion 22 is provided on the second body 21, and is inserted into and fitted with the guide shell portion 12, and a male socket 25 is provided in the assembly shell portion 22, and is inserted into and fitted with the female socket 112.
[0022] Specifically, the first plug core 1 is connected to the first device by a plurality of fasteners and can translate and float relative to the first device so as to be aligned with the second plug core 2. The guide shell 12 is formed by extending from one side of the first body 11 away from the first device, and its cross section can be polygonal such as rectangular or arc-shaped such as circular. One end of the female socket 112 penetrates the first body 11 and protrudes into the guide shell 12, and the other end is located within the first device and is electrically connected to the circuit system within the first device.
[0023] The second plug core 2 is fixedly connected to the second device by a plurality of fasteners. To prevent the second plug core 2 from being installed upside down, the second plug core 2 may be provided with an eccentric screw hole. The assembly shell portion 22 is formed by extending and protruding from one side of the second body 21 that is remote from the second device. The shape of the assembly shell portion 22 is designed to match the shape of the guide shell portion 12, and can be guided and fitted by the guide shell portion 12. The installation method for the male socket 25 is the same as that for the female socket 112, so a repeated description will not be given here.
[0024] When using the connector, first plug core 1 and second plug core 2 are aligned, then guide shell portion 12 and assembly shell portion 22 are inserted, and first body 11 and second body 21 are inserted and fitted together using the guiding action of guide shell portion 12 and assembly shell portion 22. In this way, when inserting first body 11 and second body 21, the guiding relationship between guide shell portion 12 and assembly shell portion 22 is utilized to quickly complete the insertion, and because guide shell portion 12 and assembly shell portion 22 are formed by protruding extensions of first body 11 and second body 21, respectively, there is no need to provide a separate guide structure for first plug core 1 and second plug core 2, which effectively ensures the guiding effect of the guide structure, reduces the possibility of guide function failure, ensures functional stability of the connector, and helps to extend the service life of the connector.
[0025] As shown in FIG. 2, in some embodiments of the present invention, the cross-sectional area of the assembly shell part 22 is larger than that of the guide shell part 12, and a guide gap 23 for inserting the guide shell part 12 is formed between the inside of the assembly shell part 22 and the male socket 25, and the inner wall of the assembly shell part 22 is in close contact with the outer wall of the guide shell part 12 so as to be slidable therebetween.
[0026] Specifically, the cross sections of the assembly shell 22 and the guide shell 12 are both rectangular, and the length and width of the inside of the assembly shell 22 are greater than the length and width of the outside of the guide shell 12. The male socket 25 is disposed at the center of the assembly shell 22, and the end face of the male socket 25 may be flush with the end face of the assembly shell 22, with a certain distance maintained between the male socket 25 and the inner wall of the assembly shell 22 to form the aforementioned guide gap 23. The end face of the female socket 112 may also be flush with the end face of the guide shell 12, allowing the guide shell 12 to be fully inserted into the assembly shell 22.
[0027] By forming the guide gap 23, when the male socket 25 is inserted into the female socket 112, the guide shell part 12 is inserted into the guide gap 23 in the assembly shell part 22, and the outer wall of the guide shell part 12 comes into slidable close contact with the outer wall of the assembly shell part 22, thereby exerting a guide effect. As the guide shell part 12 is gradually inserted into the assembly shell part 22, the insertion of the female socket 112 and the male socket 25 is completed normally.
[0028] Referring to FIG. 3, in some embodiments of the present invention, the outer wall of the guide shell 12 is provided with a guide slope 121 that slidably fits with the assembly shell 22.
[0029] Specifically, the open end of the guide shell part 12 is chamfered to form a guide slope 121, which is set facing the assembly shell part 22. The inclination angle of the guide slope 121 can be set to, for example, 45° or 30° depending on the requirements for insertion fitting.
[0030] By providing the guide slope 121, the cross-sectional area of the end of the guide shell part 12 that is inserted into the assembly shell part 22 can be reduced, making it easier to insert the guide shell part 12 into the assembly shell part 22. At the same time, the guide slope 121 also serves as a guide. When the guide shell part 12 is inserted into the assembly shell part 22, the guide slope 121 can slidably come into close contact with the inner wall of the assembly shell part 22, so the guide shell part 12 can slide smoothly into the assembly shell part 22.
[0031] Referring to FIG. 3, in some embodiments of the present invention, a plurality of grooves are provided on the outer wall of the guide shell 12, and a guide rib 122 is formed between two adjacent grooves.
[0032] Specifically, the groove extends vertically, and multiple grooves are arranged at equal intervals along the periphery of the guide shell 12, thereby forming multiple guide ribs 122. One end of the guide rib 122 close to the guide slope 121 may be connected to the guide slope 121 and provided with an inclined surface having a corresponding inclination angle. The guide rib 122 may be fixed to the outer wall of the guide shell 12 by adhesive or welding. In this case, a ring groove for attaching the guide rib 122 may be separately provided on the outer wall of the guide shell 12.
[0033] The provision of the grooves further reduces the amount of material used for the guide shell part 12, and the formed guide ribs 122 can effectively fill the remaining gap when the guide shell part 12 is inserted into the guide gap 23, so that the guide shell part 12 and the assembly shell part 22 fit together stably and are less likely to rattle. At the same time, the provision of the guide ribs 122 improves the strength of the guide shell part 12 and reduces the possibility of the guide shell part 12 being damaged during the insertion process of the guide shell part 12 and the assembly shell part 22.
[0034] Referring to FIG. 4, in some embodiments of the present invention, the inner wall of the assembly shell 22 is provided with an assembly ramp 221 that slidably fits with the guide shell 12 .
[0035] Specifically, the inner wall of the assembly shell part 22 is chamfered to form an assembly slope 221, the inclination angle of which can be designed to match the guide slope 121 of the guide shell part 12, and the assembly slope 221 can be aligned to correspond to the guide slope 121. The provision of the assembly slope 221 increases the opening area of the assembly shell part 22, making it easier to smoothly insert the guide shell part 12 into the assembly shell part 22. The engagement between the assembly slope 221 and the guide slope 121 also serves to limit and guide the insertion of the guide shell part 12. As the guide slope 121 comes into close contact with the assembly slope 221, the guide shell part 12 and the assembly shell part 22 can be pressed together to align them, thereby preventing misalignment between the guide shell part 12 and the assembly shell part 22.
[0036] Referring to FIG. 3, in some embodiments of the present invention, a seal groove 123 for mounting a seal ring is provided on the outer wall of the guide shell 12, and the seal ring abuts against the inner wall of the assembly shell 22 to seal the gap between the assembly shell 22 and the guide shell 12.
[0037] Specifically, the seal groove 123 is fitted around the outer wall of the guide shell 12 and is located below the guide rib 122. The seal ring is bonded to the seal groove 123 with an adhesive. The seal ring may be made of rubber, and one end thereof protrudes from the seal groove 123 and abuts against the inner wall of the assembly shell 22.
[0038] By providing the seal ring, when the guide shell part 12 is inserted into the assembly shell part 22, the seal ring can effectively seal the gap between the guide shell part 12 and the assembly shell part 22, thereby improving the sealing performance between the guide shell part 12 and the assembly shell part 22.
[0039] In some embodiments of the present invention, the first body 11 is integrally formed with the female socket 112 and the second body 21 is integrally formed with the male socket 25 .
[0040] Specifically, the first body 11 and the female socket 112 are integrally molded; that is, in the manufacturing process of the first plug core 1, the first body 11 incorporating the female socket 112 is directly manufactured by injection molding or the like. In this case, the position and installation direction of the female socket 112 in the first body 11 are determined. Furthermore, the manufacturing of the first plug core 1 is completed by assembling a pin connected to a lead wire into the female socket 112 and attaching a plug cover 113 to one end of the female socket 112 as the positive or negative electrode of the first plug core 1. When the worker connects the first plug core 1 to the first device, the direction and order of the female sockets 112 have already been determined, so the second plug core 2 can be attached accordingly. The manufacturing method of the second plug core 2 is the same as that of the first plug core 1, so it will not be repeated here.
[0041] By integrally forming the first body 11 and female socket 112, and the second body 21 and male socket 25, when installing the connector, simply fastening the first body 11 completes the installation of the first plug core 1. The installation of the second plug core 2 can be clearly determined depending on the installation direction and order of the first plug core 1, which effectively simplifies the installation process, reduces installation difficulties, and reduces the possibility of connector installation errors, significantly improving connector installation efficiency compared to prior art.
[0042] 3 and 4, in some embodiments of the present invention, the first plug core 1 can float within a set gap range relative to the first device, and the set gap is ±3.2 mm.
[0043] Specifically, since there is no need to provide separate guide structures on both sides of the plug core, the available space in the first body 11 is expanded, and an oval hole can be provided in the first body 11 as a fixing hole for a fastener, with the length of this oval hole being ±3.2 mm. By providing multiple oval holes along the periphery of the first body 11, the first body 11 can float within a range of ±3.2 mm. This allows the first plug core 1 and the second plug core 2 to form an assembly and insertion relationship within a wider tolerance range, improving the adaptability of the connector, expanding the range of applications for the connector, and enabling the connector to be used in a variety of environments. Note that the oval hole can also be a regular round hole.
[0044] In some embodiments of the present invention, both the first body 11 and the second body 21 include a plurality of power terminals 111. Specifically, a plurality of female sockets 112 may be provided as the power terminals 111 within the first body 11 and the second body 21. For example, two sets of parallel female sockets 112 may be provided, with the first set of female sockets 112 provided with orange plug covers 113 as positive poles and the second set of female sockets 112 provided with black plug covers 113 as negative poles. In this way, the first body 11 can be electrically connected to various power transmission terminals of a first device, and the second body 21 can be electrically connected to various power transmission terminals of a second device, thereby effectively improving the adaptability of the connector.
[0045] Referring to FIG. 4, in some embodiments of the present invention, the second plug core 2 has an eccentric mounting hole 24 for receiving a screw that is connected to a second device.
[0046] Specifically, the cross section of second body 21 may be rectangular. In this case, eccentric mounting holes 24 are provided at the center of both the left and right sides of second body 21, and the line connecting the two eccentric mounting holes 24 is not parallel to any side of second body 21, so that the two eccentric mounting holes 24 are offset from each other. If second body 21 has a cross section of another shape, the position of eccentric mounting holes 24 may be adjusted accordingly to prevent reverse installation, and it should be understood that this application is not particularly limited thereto.
[0047] By arranging the two eccentric mounting holes 24 so that they are offset from one another, when installing the second body 21, the two eccentric mounting holes 24 can be aligned with the corresponding screw holes of the second device only if the second body 21 is installed in the correct installation direction; otherwise, the eccentric mounting holes 24 cannot be aligned with the corresponding screw holes of the second device, making installation impossible. This prevents the second body 21 from being installed upside down, allowing the worker to quickly determine the installation direction of the second body 21 and further reducing the difficulty of installation.
[0048] Needless to say, the above-described embodiments of the present invention are merely examples for clearly explaining the present invention, and are not intended to limit the scope of the present invention. It will be apparent to those skilled in the art that various modifications, rearrangements, and substitutions can be made without departing from the scope of the present invention. It is not necessary or possible to list all embodiments here. All modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the scope of the claims of the present invention. [Explanation of symbols]
[0049] 1. First plug core 11 First Body 111 Power terminal 112 female socket 113 Plug cover 12 Guide shell 121 Guide Slope 122 Guide rib 123 Seal groove 2. Second plug core 21 Second Body 22 Assembled shell 221 Assembly slope 23 Guide gap 24 eccentric mounting holes 25 male socket
Claims
1. A connector comprising a first plug core (1) and a second plug core (2), The first plug core (1) is used to connect to a first device, and the first plug core (1) A first body (11); a guide shell portion (12) provided in the first body (11), and a female socket (112) for attaching a male pin is provided in the guide shell portion (12); The second plug core (2) is used to connect to a second device, and the second plug core (2) A second body (21); a mounting shell portion (22) provided on the second body (21) and inserted into and fitted with the guide shell portion (12), and a male socket (25) provided in the mounting shell portion (22) and inserted into and fitted with the female socket (112).
2. 2. The connector according to claim 1, wherein a cross-sectional area of the assembly shell portion (22) is larger than a cross-sectional area of the guide shell portion (12), a guide gap (23) for inserting the guide shell portion (12) is formed between the inside of the assembly shell portion (22) and the male socket (25), and an inner wall of the assembly shell portion (22) is in slidable contact with an outer wall of the guide shell portion (12).
3. 3. The connector according to claim 2, wherein an outer wall of the guide shell portion (12) is provided with a guide slope (121) that slidably fits with the assembly shell portion (22).
4. 3. The connector according to claim 2, wherein a plurality of grooves are provided on the outer wall of the guide shell portion (12), and a guide rib (122) is formed between two adjacent grooves.
5. 3. The connector according to claim 2, wherein an assembly inclined surface (221) that slidably fits with the guide shell portion (12) is provided on an inner wall of the assembly shell portion (22).
6. 6. The connector according to claim 1, wherein a seal groove (123) for attaching a seal ring is provided on an outer wall of the guide shell portion (12), and the seal ring abuts against an inner wall of the assembly shell portion (22) to seal a gap between the assembly shell portion (22) and the guide shell portion (12).
7. 6. A connector according to claim 1, wherein the first body (11) is integrally formed with the female socket (112), and the second body (21) is integrally formed with the male socket (25).
8. 6. The connector according to claim 1, wherein the first plug core (1) is capable of floating within a set gap range relative to the first device, and the set gap is ±3.2 mm.