A low profile cleaver connector

Abstract

The utility model discloses a kind of short order cutter formula connectors, belong to connector technical field, including female end connector and male end connector, female end connector and male end connector are matched;The rear end of female end connector is fixedly connected with plastic shell, the front end of female end connector is provided with special-shaped groove, and special-shaped groove is located in plastic shell in rear extension shape, two sunken terminals and metal lock tongue are fixedly connected in special-shaped groove, and metal lock tongue is located in the middle of female end connector, the front end of female end connector is fixedly connected with sealing pad, the rear end of female end connector is provided with sealing ring, and sealing ring is sleeved on the outer surface of plastic shell, the outer surface of plastic shell is provided with two outlet openings;In the utility model, two sunken terminals are assembled in the special-shaped groove of female end connector, by welding two sunken terminals first and then assembling plastic shell, to shorten the height of overall female end connector, facilitate compact Pack internal structure layout design.

Description

Technical Field

[0001] This utility model relates to the field of connector technology, and more specifically, to a low-profile guillotine connector. Background Technology

[0002] Electric-assisted two-wheelers are a popular mode of transportation both domestically and internationally. They are energy-saving, environmentally friendly, and widely used. As the core power unit of electric assist, the performance requirements for the power connector, the core conductive unit of the battery, are increasing.

[0003] Currently, there are two main types of connector interfaces for battery charging and discharging on the market: one is a unified charging / discharging interface, and the other is a different charging / discharging interface. The unified charging / discharging interface uses only one power connector and can be used for both discharging and charging, making it increasingly widely used. However, as battery pack power increases and internal space becomes more compact, the following problems arise with the general connectors on the market:

[0004] 1. The overall height of the female connector on the battery PACK is relatively high, generally greater than 18mm, which is not conducive to the internal structural layout design of a compact PACK.

[0005] 2. The female connector terminals are exposed outside the plastic. After wire bonding, the live metal parts are covered by sleeves or glue, which does not provide high safety performance.

[0006] 3. When male and female connectors are mated, the holding force is provided only by the terminal clamping force. The structure without a locking mechanism makes the plug easy to loosen.

[0007] 4. The male and female guillotine connectors are not waterproof when plugged in. Utility Model Content

[0008] 1. Technical problems to be solved

[0009] To address the problems existing in the prior art, the purpose of this utility model is to provide a low-profile guillotine connector, aiming to solve the following problems in the prior art: "The overall height of the female connector at the battery PACK end is too high, generally greater than 18mm, which is not conducive to the internal structural layout design of compact PACKs; the female connector terminals are exposed outside the plastic, and after soldering, the metal live parts are covered by sleeves or glue, which is not safe; when the male and female connectors are mated, the holding force is only provided by the terminal clamping force, and the structure without a locking mechanism makes the plug easy to loosen; the male and female guillotine connectors are not waterproof when mated."

[0010] 2. Technical Solution

[0011] To solve the above problems, the present invention adopts the following technical solution:

[0012] A low-profile guillotine connector includes a female connector and a male connector, wherein the female connector and the male connector are mated;

[0013] The rear end of the female connector is fixedly connected to a plastic shell. The front end of the female connector is provided with a shaped groove, which extends rearward and is located inside the plastic shell. Two recessed terminals and a metal locking tongue are fixedly connected in the shaped groove, and the metal locking tongue is located in the middle of the female connector. A sealing gasket is fixedly connected to the front end of the female connector. A sealing ring is provided at the rear end of the female connector and is fitted onto the outer surface of the plastic shell. Two cable outlets are opened on the outer surface of the plastic shell, and the two cable outlets correspond to the two recessed terminals respectively.

[0014] One end of the male connector is fixedly connected to a male positioning component, which corresponds to the sealing gasket. The end of the male positioning component away from the male connector is fixedly connected to two guillotine-type inserts, multiple T-shaped partitions, and a metal locking plate. The two guillotine-type inserts, multiple T-shaped partitions, and the metal locking plate all correspond to the irregular groove. The two guillotine-type inserts are respectively matched with two recessed terminals. The multiple T-shaped partitions are respectively fixedly connected to the two guillotine-type inserts. The metal locking plate is located in the middle of the male positioning component and matches the metal locking tongue.

[0015] In a preferred embodiment of this utility model, the two recessed terminals are respectively a power terminal and a signal terminal, and the two blade-type inserts are respectively a power insert and a signal insert, with the power terminal and signal terminal corresponding to the power insert and signal insert, respectively.

[0016] As a preferred embodiment of this utility model, each of the recessed terminals includes a terminal body, four elastic ends, a connecting end, and a welding end face. The terminal body, four elastic ends, connecting end, and welding end face are integrally bent and fixedly connected in the irregular groove. The four elastic ends are bent at one end of the terminal body near the opening of the irregular groove, and the four elastic ends are symmetrically distributed. The connecting end is bent at one side of the terminal body, and the welding end face is bent on the connecting end.

[0017] As a preferred embodiment of this utility model, the metal lock tongue is provided with two S-shaped elastic protrusions at one end near the opening of the irregular groove, and the two S-shaped elastic protrusions are symmetrically distributed. Both sides of the metal lock plate are provided with snap-fit ​​protrusions, and the two snap-fit ​​protrusions match the two S-shaped elastic protrusions.

[0018] As a preferred embodiment of this utility model, the sealing gasket is provided with multiple corrugated protrusions.

[0019] 3. Beneficial effects

[0020] Compared with existing technologies, the advantages of this utility model are:

[0021] (1) In this solution, the female end of the guillotine connector consists of a female connector and a plastic shell, which is a split structure. The two recessed terminals used to connect the power line and the signal line are stamped and bent multiple times. The two recessed terminals are assembled in the irregular groove opened in the female connector. By first welding the two recessed terminals and then assembling the plastic shell, the overall height of the female connector is shortened, which facilitates the internal structure layout design of the compact pack.

[0022] (2) In this scheme, the power supply and signal lines are respectively soldered to two recessed terminals and exit through two outlets on the plastic shell. After the power supply and signal lines exit, the two outlets are sealed with glue. The metal solder joints are hidden inside the plastic shell. The overall encapsulation structure achieves insulation and protection of the live parts, thereby improving safety.

[0023] (3) In this solution, the female connector has a metal locking tongue installed at the center position through the irregular groove, and the male connector has a metal locking piece at the center of the mating end through the male positioning piece. When the male and female ends of the guillotine connector are inserted, the metal locking tongue and the metal locking piece form a locking effect when they match each other, which ensures the overall stability of the connector insertion and makes it less likely to loosen.

[0024] (4) In this solution, the end face of the female connector is provided with a sealing gasket with a corrugated protrusion around the entire circle, which forms a pressure waterproof effect with the end face of the male positioning part on the male connector, solving the problem of non-waterproofing when male and female connectors are mated. This design is more conducive to market promotion and application. Attached Figure Description

[0025] Figure 1 This is the front view of the present invention;

[0026] Figure 2 This is a structural diagram of the female connector in this utility model;

[0027] Figure 3 This is a cross-sectional view of the female connector in this utility model;

[0028] Figure 4 This is a structural diagram of the recessed terminal in this utility model.

[0029] Explanation of the labels in the diagram:

[0030] 1. Female connector; 12. Plastic housing; 13. Irregular groove; 14. Recessed terminal; 141. Terminal body; 142. Flexible end; 143. Connection end; 144. Welding end face; 15. Metal locking tongue; 16. Sealing gasket; 17. Sealing ring; 18. Cable outlet; 2. Male connector; 21. Male positioning element; 22. Guillotine-type insert; 23. T-shaped barrier; 24. Metal locking plate. Detailed Implementation

[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0032] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "top / bottom," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0033] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "sleeved / connected," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0034] Example:

[0035] Please see Figure 1-4 A low-profile guillotine connector includes a female connector 1 and a male connector 2, which are mated;

[0036] A plastic housing 12 is fixedly connected to the rear end of the female connector 1. A shaped groove 13 is provided at the front end of the female connector 1, and the shaped groove 13 extends backward and is located inside the plastic housing 12. Two recessed terminals 14 and a metal locking tongue 15 are fixedly connected inside the shaped groove 13, and the metal locking tongue 15 is located in the middle of the female connector 1. A sealing gasket 16 is fixedly connected to the front end of the female connector 1. A sealing ring 17 is provided at the rear end of the female connector 1, and the sealing ring 17 is sleeved on the outer surface of the plastic housing 12. Two wire outlets 18 are opened on the outer surface of the plastic housing 12, and the two wire outlets 18 correspond to the two recessed terminals 14 respectively.

[0037] One end of the male connector 2 is fixedly connected to a male positioning member 21, and the male positioning member 21 corresponds to the sealing gasket 16. The end of the male positioning member 21 away from the male connector 2 is fixedly connected to two guillotine-type inserts 22, multiple T-shaped partitions 23, and a metal locking plate 24. The two guillotine-type inserts 22, multiple T-shaped partitions 23, and metal locking plate 24 all correspond to the irregular groove 13. The two guillotine-type inserts 22 are respectively matched with two recessed terminals 14. The multiple T-shaped partitions 23 are respectively fixedly connected to the two guillotine-type inserts 22. The metal locking plate 24 is located in the middle of the male positioning member 21 and matches the metal locking tongue 15.

[0038] In this embodiment, the irregular groove 13 is composed of several T-shaped grooves. These T-shaped grooves form an isolation within the irregular groove 13, creating different spaces for accommodating two recessed terminals 14 and a metal latch 15. The two recessed terminals 14 and the metal latch 15 are inserted from the rear end of the irregular groove 13 and are positioned by the front end of the irregular groove 13 after insertion. After the two recessed terminals 14 are installed in the irregular groove 13, they are connected to external circuitry by welding. After the circuitry is welded, the plastic housing 12 is fixed to the rear end of the female connector 1. The plastic housing 12 protects the two recessed terminals 14 and the metal latch 15 within the irregular groove 13 and protects the solder joints between the two recessed terminals 14 and the external circuitry. The external circuitry passes through two outlets 18 to the outside of the plastic housing 12 and connects to external devices. Glue is applied to the two outlets 18 to seal and protect the live parts inside the plastic housing 12. The male terminal is connected... One end of the connector 2 is provided with a male positioning member 21 corresponding to the female connector 1, so that the two blade-type inserts 22, multiple T-shaped spacers 23, and metal locking pieces 24 can be matched and inserted into the irregular groove 13. After the two blade-type inserts 22, multiple T-shaped spacers 23, and metal locking pieces 24 are inserted into the irregular groove 13, the two blade-type inserts 22 are respectively inserted into the two recessed terminals 14, realizing the electrical connection after the connector is plugged in. The multiple T-shaped spacers 23 are used to hold the two blade-type inserts 22 in place. 2. Support and structural reinforcement ensure the insertion strength of the two blade-type inserts 22. The metal locking plate 24 is inserted into the metal locking tongue 15 to cooperate with each other to form a lock, improving the insertion effect of the connector. In addition, after the female connector 1 and the male connector 2 are connected, the sealing gasket 16 on the female connector 1 will contact the end face of the male positioning member 21 to improve the sealing effect after the connector is connected. The sealing ring 17 is used to ensure the sealing of the female connector 1 when connected to external equipment.

[0039] Specifically, the two recessed terminals 14 are power terminals and signal terminals, respectively, and the two blade-type inserts 22 are power inserts and signal inserts, respectively, with the power terminals and signal terminals corresponding to the power inserts and signal inserts, respectively.

[0040] In this embodiment, the power terminals and power plugs correspond to achieve electrical connection after the blade connector is plugged in, and the signal terminals and signal plugs correspond to achieve signal line connection after the blade connector is plugged in.

[0041] Specifically, each recessed terminal 14 includes a terminal body 141, four elastic ends 142, a connecting end 143, and a welding end face 144. The terminal body 141, four elastic ends 142, connecting end 143, and welding end face 144 are integrally bent and fixedly connected in the irregular groove 13. The four elastic ends 142 are bent at one end of the terminal body 141 near the opening of the irregular groove 13, and the four elastic ends 142 are symmetrically distributed. The connecting end 143 is bent at one side of the terminal body 141, and the welding end face 144 is bent on the connecting end 143.

[0042] In this embodiment, the four elastic ends 142, the connecting end 143, and the welding end face 144 are all bent into shape on the terminal body 141. When the guillotine-type insert 22 is inserted into the irregular groove 13, it will enter the terminal body 141 through the four elastic ends 142. The four elastic ends 142 elastically clamp the guillotine-type insert 22, preventing the guillotine-type insert 22 from loosening, while achieving close contact between the recessed terminal 14 and the guillotine-type insert 22. The connecting end 143 is bent so that the welding end face 144 is located on one side of the terminal body 141. The welding end face 144 is bent on the connecting end 143 to form a planar structure that facilitates welding with external circuits.

[0043] Specifically, the metal latch 15 has two S-shaped elastic protrusions at one end near the opening of the irregular groove 13, and the two S-shaped elastic protrusions are symmetrically distributed. The metal lock plate 24 has snap-fit ​​protrusions at both symmetrical ends, and the two snap-fit ​​protrusions match the two S-shaped elastic protrusions.

[0044] In this embodiment, when the metal locking piece 24 is inserted into the irregular groove 13, it will enter the metal locking tongue 15. The two snap-fit ​​protrusions penetrate through the two S-shaped elastic protrusions and enter the metal locking tongue 15. The two S-shaped elastic protrusions and the two snap-fit ​​protrusions cooperate to form a lock between 25 and the metal locking piece 24, thereby improving the stability of the guillotine connector after insertion.

[0045] Specifically, the sealing gasket 16 is provided with multiple corrugated protrusions.

[0046] In this embodiment, after the female connector 1 and the male connector 2 are connected, the male positioning member 21 will contact and seal with the sealing gasket 16. The sealing effect can be further improved by the multiple corrugated protrusions of the gasket 16.

[0047] Working principle: When the guillotine connector is in use, the male connector 2 aligns with the female connector 1 via the male positioning member 21, allowing the two guillotine-type inserts 22, multiple T-shaped partitions 23, and metal locking plates 24 to be inserted into the irregular groove 13. The two guillotine-type inserts 22 respectively enter the two recessed terminals 14, enabling the guillotine connector to complete the telecommunications and signal connection. The metal locking plates 24 enter the metal locking tongue 15 to form a lock, ensuring the stability of the guillotine connector after connection. The sealing gasket 16 contacts the male positioning member 21, improving the sealing effect of the guillotine connector after connection. Water ingress into the waterproof connector will affect its use.

[0048] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model based on the technical solution and its improved concept should be covered within the protection scope of the present utility model.

Claims

1. A low-profile guillotine connector, comprising a female connector (1) and a male connector (2), characterized in that: The female connector (1) and the male connector (2) are matched; The rear end of the female connector (1) is fixedly connected to a plastic shell (12). The front end of the female connector (1) is provided with a shaped groove (13), and the shaped groove (13) extends backward and is located inside the plastic shell (12). Two recessed terminals (14) and a metal locking tongue (15) are fixedly connected inside the shaped groove (13), and the metal locking tongue (15) is located in the middle of the female connector (1). The front end of the female connector (1) is fixedly connected to a sealing gasket (16). The rear end of the female connector (1) is provided with a sealing ring (17), and the sealing ring (17) is sleeved on the outer surface of the plastic shell (12). The outer surface of the plastic shell (12) has two wire outlets (18), and the two wire outlets (18) correspond to the two recessed terminals (14) respectively. One end of the male connector (2) is fixedly connected to a male positioning member (21), and the male positioning member (21) corresponds to the sealing gasket (16). The end of the male positioning member (21) away from the male connector (2) is fixedly connected to two guillotine-type inserts (22), multiple T-shaped partitions (23) and a metal locking piece (24). The two guillotine-type inserts (22), multiple T-shaped partitions (23) and the metal locking piece (24) all correspond to the irregular groove (13). The two guillotine-type inserts (22) are respectively matched with two recessed terminals (14). The multiple T-shaped partitions (23) are respectively fixedly connected to the two guillotine-type inserts (22). The metal locking piece (24) is located in the middle of the male positioning member (21) and matches the metal locking tongue (15).

2. The low-profile guillotine connector according to claim 1, characterized in that: The two recessed terminals (14) are power terminals and signal terminals, respectively, and the two blade-type inserts (22) are power inserts and signal inserts, respectively, with the power terminals and signal terminals corresponding to the power inserts and signal inserts, respectively.

3. The low-profile guillotine connector according to claim 2, characterized in that: Each of the recessed terminals (14) includes a terminal body (141), four elastic ends (142), a connecting end (143), and a welding end face (144). The terminal body (141), four elastic ends (142), connecting end (143), and welding end face (144) are integrally bent and fixedly connected in the irregular groove (13). The four elastic ends (142) are bent at one end of the terminal body (141) near the opening of the irregular groove (13), and the four elastic ends (142) are symmetrically distributed. The connecting end (143) is bent at one side of the terminal body (141), and the welding end face (144) is bent on the connecting end (143).

4. A low-profile guillotine connector according to claim 3, characterized in that: The metal latch (15) has two S-shaped elastic protrusions at one end near the opening of the groove (13), and the two S-shaped elastic protrusions are symmetrically distributed. The metal lock plate (24) has snap-fit ​​protrusions at both symmetrical ends, and the two snap-fit ​​protrusions match the two S-shaped elastic protrusions.

5. A low-profile guillotine connector according to claim 4, characterized in that: The sealing gasket (16) is provided with multiple corrugated protrusions.

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