Small-sized laminated connector
By designing a small stacked connector and using reliable connections with copper busbars and fasteners, the problem of connecting multiple devices in space-constrained situations with traditional connectors is solved. This enables series and parallel circuit modes, improves energy transmission efficiency, and reduces costs.
Patent Information
- Application Number
- CN202520098909.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-16
- Publication Date
- 2026-01-13
- Estimated Expiration
- 2035-01-16
AI Technical Summary
Traditional connectors are difficult to connect multiple devices in series or parallel when space is limited, and the single-function terminals cannot meet the requirements of different voltages and currents.
A small stacked connector is designed, including a plug assembly and a socket assembly, which achieves reliable connection of the plug terminal group through copper busbars and fasteners, and supports series and parallel circuit modes. It adopts corrosion-resistant materials and a snap-fit assembly structure.
It enables the connection of multiple devices in a limited space, improves energy transmission efficiency, reduces costs, and supports rapid installation and maintenance, making it suitable for energy storage cabinet systems.
Smart Images

Figure CN223797637U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of electrical connector technology, and in particular to a small stacked connector. Background Technology
[0002] A connector, as a plug and socket, is used to connect two devices to transmit current or signals.
[0003] Traditional connectors integrate one type of terminal on the male and female plugs, such as signal terminals or power terminals. Different types of terminal connectors are used for different voltage and current requirements. The terminal functions are single. When two devices are connected by mating multiple functional terminals, a corresponding number of corresponding terminals are required.
[0004] In existing technologies, energy storage devices are usually large in size, making it difficult to meet the connection requirements of multiple devices in series / parallel when space is limited.
[0005] To address the problems in the existing technology, this utility model provides a small stacked connector. Utility Model Content
[0006] The purpose of this invention is to provide a small stacked connector to solve the technical problem in the prior art where the product is large in size and it is difficult to realize a large number of products in series and parallel and power conversion within a certain space.
[0007] The technical solution of this utility model is: a small stacked connector, including a plug assembly and a socket assembly, wherein the socket assembly includes a socket upper cover, a socket lower cover and a socket terminal group; the plug assembly includes a plug upper cover, a plug lower cover and a plug terminal group; the plug assembly and the socket assembly are mated and connected, and the plug terminal group and the socket terminal group are mated and connected; the plug terminal group is installed through a copper busbar and fixed by fasteners, and the copper busbar is assembled in the mounting cavity of the plug lower cover.
[0008] Preferably, the plug assembly includes a series terminal mode and a parallel terminal mode, corresponding to a stacked connection device or a battery pack; multiple fasteners are provided, each corresponding to a terminal in the plug terminal group.
[0009] Preferably, the copper busbar is configured as multiple independent first mounting plates, with terminals on each first mounting plate arranged in pairs. The paired terminals have opposite polarities and are connected in series electrically to realize a series circuit mode for the plug assembly.
[0010] Preferably, the copper busbars are configured as pairs of independent second mounting plates, with terminals on the two second mounting plates having the same polarity and adjacent terminals electrically connected in series to realize a parallel circuit mode for the plug assembly.
[0011] Preferably, the plug lower cover and the socket lower cover are provided with mounting holes corresponding to the terminals; the socket terminal group and the plug terminal group are installed in the mounting holes and fixed by a crown spring.
[0012] Preferably, holes are provided on the lower cover of the socket to facilitate installation and fixation.
[0013] Compared with the prior art, the advantages of this utility model are:
[0014] (1) The plug assembly and socket assembly of this utility model are stacked and matched, miniaturized, and assembled by snap-fit. The structure is simple and meets the electrical connection between devices in a limited space. The connector has the advantages of small size, light weight, corrosion resistance and long service life. It is suitable for energy storage cabinet system and can quickly realize the connection and energy transmission between solar panels and between solar panels and energy storage devices.
[0015] (2) The same socket assembly can be matched with two plug assemblies with series and parallel designs to provide series and parallel circuits for the battery pack, realize the power conversion of multiple battery panels (packs) in series and parallel mode, and improve energy transmission efficiency.
[0016] (3) The plug terminal group is fixed and locked to the copper busbar by screws and nuts to achieve reliable connection, while facilitating maintenance and replacement, effectively reducing costs and improving system efficiency. Attached Figure Description
[0017] The present invention will be further described below with reference to the accompanying drawings and embodiments:
[0018] Figure 1 This is an exploded view of the miniaturized stacked connector described in this utility model;
[0019] Figure 2 This is an exploded view of the socket assembly described in this utility model;
[0020] Figure 3 This is an exploded view of the plug assembly in parallel mode in the first embodiment of this utility model;
[0021] Figure 4 This is an exploded view of the plug assembly in the series mode in the second embodiment of the present invention;
[0022] Figure 5 This is a schematic diagram of the assembly and connection of the terminals and copper busbars corresponding to the first embodiment of this utility model;
[0023] Figure 6 This is a schematic diagram of the assembly and connection of the terminals and copper busbars corresponding to the second embodiment of this utility model;
[0024] Figure 7This is a schematic diagram of the parallel connection of the terminal pins corresponding to the first embodiment of this utility model;
[0025] Figure 8 This is a schematic diagram of the terminal pins connected in series according to the second embodiment of this utility model;
[0026] Among them: 1. Plug assembly;
[0027] 11. Plug top cover; 12. Plug bottom cover; 13. Plug terminal block; 14. Copper busbar; 15. Fasteners.
[0028] 141. First mounting plate; 142. Second mounting plate;
[0029] 2. Socket assembly;
[0030] 21. Top cover of socket; 22. Bottom cover of socket; 23. Socket terminal block; 24. Hole; 25. Fixing claw. Detailed Implementation
[0031] The present invention will be further described in detail below with reference to specific embodiments:
[0032] like Figure 1 As shown, a small stacked connector includes a plug assembly 1 and a socket assembly 2, which are respectively mounted on two devices and used in conjunction to electrically connect the two devices. The devices can be battery packs, devices or equipment to be connected, or local electrical components of the devices.
[0033] The plug assembly 1 includes a plug upper cover 11, a plug lower cover 12, and a plug terminal group 13; wherein, the plug terminal group 13 is mounted through a copper busbar 14 and fixed by fasteners 15, and the copper busbar 14 is assembled in the mounting cavity of the plug lower cover 12; multiple fasteners 15 are provided, and each corresponds to a terminal in the plug terminal group 13.
[0034] Fastener 15 is a screw or bolt. The screw or bolt and the mating fixing nut are set on both sides of the copper busbar and used with locking terminals to achieve a reliable connection, while also facilitating maintenance and replacement.
[0035] See attached document Figure 2 As shown, the socket assembly 2 includes a socket upper cover 21, a socket lower cover 22, and a socket terminal group 23. The plug assembly 1 and the socket assembly 2 are mated and connected, and the plug terminal group 13 and the socket terminal group 23 are mated and connected. The plug terminal group 13 and the socket terminal group 23 include multiple power terminals and several signal terminals to realize power transmission and signal transmission.
[0036] The plug lower cover 12 and the socket lower cover 22 are provided with mounting holes corresponding to the terminals; the socket terminal group 23 and the plug terminal group 13 are installed in the mounting holes respectively. When the terminals are connected, they are fixedly connected by a crown spring, and an annular fixing claw 25 is provided on the outside for fixing.
[0037] The plug cover 12 and the socket cover 22 are provided with spring clips, which are correspondingly fastened inside the plug cover 11 and the socket cover 21 to form an internal snap-fit assembly.
[0038] The plug top cover 11, plug bottom cover 12, socket top cover 21, and socket bottom cover 22 are designed with corrosion-resistant materials to ensure long-term stable connection and reliability of the connector.
[0039] The connector has a simple overall structure and is easy to install. It can quickly connect solar panels to each other and solar panels to energy storage devices. The plug cover 12 and the socket cover 22 are provided with holes 24 for easy installation and fixing.
[0040] A set of socket components 2 can be matched with two types of plug components 1 to achieve two types of power transmission.
[0041] For example, refer to the appendix Figure 3 A parallel-mode plug assembly is provided, 400A (current in amperes), 12V (voltage in volts); see attached diagram. Figure 4 A series-connected plug assembly 1 is provided, 100A (current, unit: ampere), 48V (voltage, unit: volt) model.
[0042] The 100A plug assembly 1 can provide a series circuit for the battery pack, and the 400A plug assembly 1 can provide a parallel circuit for the battery pack, realizing power conversion of multiple battery panels in series and parallel mode, and improving energy transmission efficiency.
[0043] In practice, it also includes a 500mA (current, unit: milliampere) signal terminal.
[0044] The two types of plug assemblies 1 have the same structure for the plug upper cover 11 and the plug lower cover 12, but the circuit connection between the terminals is different, and the shape and structure of the copper busbar corresponding to the fixed bearing terminals are different.
[0045] The terminals are made of copper alloy with silver plating, which has low contact resistance and good conductivity. The socket terminal group 23 includes two 400A terminals, nine 100A terminals, and two 500mA terminals. The 400A power terminals have a threaded locking structure to provide stability for circuit connection. The 100A power terminals and 500mA terminals have a crimped connection to facilitate on-site installation compatibility.
[0046] Specifically, in the first embodiment or other embodiments, the plug assembly 1 is in parallel mode, as shown in the attached figure. Figure 3 Combined with appendix Figure 5 As shown, the copper busbars 14 are configured as pairs of independent first mounting plates 141, with the terminals on the two first mounting plates 141 connected in series one-to-one. A schematic diagram of the parallel connection of the terminal pins is shown in the attached diagram. Figure 7 .
[0047] Specifically, in the second embodiment or other embodiments, the plug assembly is in series, as shown in the attached figure. Figure 4 Combined with appendix Figure 6 As shown, the copper busbar 14 is configured as multiple independent second mounting plates 142. The terminals on each second mounting plate 142 are arranged in pairs, and their corresponding polarities are opposite in the circuit connection. A schematic diagram of the terminal pins connected in series is shown in the attached diagram. Figure 8 .
[0048] The above embodiments are only for illustrating the technical concept and features of this utility model, and are intended to enable those skilled in the art to understand the content of this utility model and implement it accordingly. They should not be construed as limiting the scope of protection of this utility model. It is obvious to those skilled in the art that this utility model is not limited to the details of the above exemplary embodiments, and that it can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects. The scope of this utility model is defined by the appended claims rather than the foregoing description, and therefore, all changes falling within the meaning and scope of the equivalents of the claims are intended to be included within this utility model.
Claims
1. A small-size stacked connector comprising a plug assembly (1) and a socket assembly (2), characterized in that, The socket assembly (2) comprises a socket upper cover (21), a socket lower cover (22) and a socket terminal group (23); the plug assembly (1) comprises a plug upper cover (11), a plug lower cover (12) and a plug terminal group (13); the plug assembly (1) and the socket assembly (2) are connected in pairs, and the plug terminal group (13) and the socket terminal group (23) are connected in pairs; The plug terminal group (13) is installed through the copper bar (14) and is fixed by the fastener (15), and the copper bar (14) is assembled in the installation cavity of the plug lower cover (12).
2. A small size stacked connector according to claim 1, wherein The plug assembly (1) comprises a series circuit mode and a parallel circuit mode, corresponding to a laminated connection device or a battery pack. The fastener (15) is provided in plurality and corresponds to the terminals in the plug terminal group (13) one by one.
3. A small size stacked connector according to claim 2, wherein The copper bar (14) is provided as a plurality of mutually independent first installation plates (141), and the terminals on each first installation plate (141) are provided in pairs, the polarities of the terminals in pairs are opposite and the terminals are electrically connected in series, so that the plug assembly (1) realizes the series circuit mode.
4. A small size stacked connector according to claim 2, wherein The copper bar (14) is provided as a pair of mutually independent second installation plates (142), the terminals on the two second installation plates (142) have the same polarity, and the adjacent terminals are electrically connected in series, so that the plug assembly (1) realizes the parallel circuit mode.
5. A small size stacked connector according to claim 1, wherein Corresponding mounting holes are arranged on the plug lower cover (12) and the socket lower cover (22) corresponding to the terminals. The socket terminal group (23) and the plug terminal group (13) are correspondingly installed in the mounting holes and are fixed by the fixing claws (25).
6. A small size stacked connector according to claim 1, wherein Holes (24) are arranged on the socket upper cover (21), so as to facilitate installation and fixation.