A series fast connection terminal

Abstract

The utility model discloses a series connection type fast -joint terminal, its technical scheme will include the terminal unit includes the external casing, conducting strip, the external casing is provided with a plurality of plug -in units, the plug -in unit includes the contact mouth of access wire, contact piece, the plug -in unit includes plug -in unit A and plug -in unit B, the conducting strip includes the contact portion of symmetrical setting in both sides and the series connection portion in the middle, the contact portion is provided with a plurality of contact protrusions of bending, the contact protrusion corresponds plug -in unit A and plug -in unit B and forms the contact cavity A and contact cavity B of the upper part opening, the external casing upper end face is provided with the contact mouth A and contact mouth B of being adapted with contact cavity A and contact cavity B. The utility model discloses through setting contact protrusion at the conducting strip, forms the contact cavity of opening all upward, makes contact mouth A and contact mouth B can set with same end face, makes the connecting wire all can access from same direction, can avoid excessive bending and cross confusion.

Description

Technical Field

[0001] This utility model relates to the field of terminal block unit technology, and more specifically to a series quick-connect terminal block. Background Technology

[0002] Currently, terminal blocks are accessories or devices used to achieve electrical connections, primarily for bridging disconnected circuits or between isolated circuits. Quick-connect terminals, by featuring plug ports with clamping devices, quickly lock inserted wires in place using a clamping mechanism, enabling convenient and reliable wire insertion and connection. This ensures both ease and efficiency in wire insertion while maintaining the stability of the electrical connection.

[0003] However, there are still some defects in the existing technology. The wiring units of the existing terminal blocks are distributed on different end faces. In some space-constrained installation scenarios (such as control cabinets and dense distribution boxes), when using terminal blocks to connect various wires, multiple cables will be connected to the terminal blocks in the same direction. Due to the limited wiring space, some cables need to be forcibly bent to complete the connection. This forced bending will cause the cables to be subjected to mechanical stress for a long time, resulting in insulation wear or conductor breakage, ultimately shortening the service life of the cables. Utility Model Content

[0004] In view of the shortcomings of the existing technology, the present invention provides a series quick-connect terminal.

[0005] To achieve the above objectives, this utility model provides the following technical solution: It includes several terminal units arranged in parallel. Each terminal unit includes an outer housing and a conductive sheet. The outer housing is provided with several plug-in units. Each plug-in unit includes a contact port for connecting wires and a contact sheet. Each plug-in unit includes plug-in unit A and plug-in unit B arranged symmetrically on the left and right. The conductive sheet includes contact portions symmetrically arranged on both sides and a series portion in the middle. Each contact portion is provided with several bent contact protrusions. The contact protrusions correspond to plug-in unit A and plug-in unit B to form contact cavities A and B with upper openings. The upper surface of the outer housing is provided with contact ports A and B that are adapted to contact cavities A and B.

[0006] The present invention is further configured such that: the upper end face of the outer shell is provided with a plug-in slot for plugging in a series busbar, and the series busbar is provided with a plug-in interface corresponding to the plug-in slot; the number of plug-in slots is two.

[0007] The present invention is further configured such that: the contact cavity A is provided with a contact piece A, the contact piece A is a clamping spring, and its two contact feet respectively contact the two sides of the contact cavity A; a pressing post is provided near the contact piece A, and an opening adapted to the pressing post is provided on the upper end surface of the outer shell.

[0008] The present invention is further configured such that: the contact cavity B is provided with a contact piece B, the contact piece B is a bent spring body with an opening; the connecting end of the contact piece B is provided with a rotating arm with a hook structure, the hook structure being adapted to the opening of the contact piece B; the rotating arm is close to the outer housing and extends out from its side.

[0009] The present invention is further configured such that: the contact protrusion is provided with a bent portion with a limiting opening for contact port A and contact port B, and the limiting opening cooperates with contact piece A or contact piece B.

[0010] The present invention is further configured such that: the back side of the outer shell is provided with raised auxiliary protrusions on both sides, and the front end face of the shell is provided with auxiliary grooves that are adapted to the auxiliary protrusions.

[0011] In summary, the present invention has the following beneficial effects: by setting contact protrusions on the conductive sheet to form contact cavities with all openings facing upwards, contact port A and contact port B can be set on the same end face, so that the connecting wires can be connected from the same direction, which can avoid excessive bending and avoid crossing and confusion. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of this embodiment;

[0013] Figure 2 This is a partial sectional view from the side in this embodiment;

[0014] Figure 3 This is a schematic diagram of the conductive sheet structure in this embodiment;

[0015] Figure 4 This is an exploded schematic diagram of this embodiment;

[0016] Figure 5 This is a schematic diagram of the second type of explosion in this embodiment;

[0017] Reference numerals: 1. Outer shell; 11. Auxiliary protrusion; 12. Auxiliary groove; 13. Insertion slot; 2. Conductive sheet; 21. Series connection part; 211. Insertion interface; 22. Contact part; 221. Contact protrusion; 2211. Contact bend; 2212. Limiting port; 3. Insertion unit A; 31. Contact cavity A; 32. Contact port A; 33. Contact piece A; 34. Pressing post; 4. Insertion unit B; 41. Contact cavity B; 42. Contact port B; 43. Contact piece B; 44. Rotating arm; 441. Hook structure; 5. Series row; 51. Series teeth. Detailed Implementation

[0018] The present invention will be further described in detail below with reference to the accompanying drawings.

[0019] This embodiment discloses a series quick-connect terminal, such as Figures 1 to 3 The diagram shows several terminal units arranged in parallel. Each terminal unit includes an outer housing 1 and a conductive sheet 2. The outer housing 1 is provided with several plug-in units, each plug-in unit including a contact port for connecting wires and a contact piece. (Refer to...) Figure 3 The plug-in unit includes plug-in units A3 and B4 symmetrically arranged on the left and right. The conductive sheet 2 includes contact portions 22 symmetrically arranged on both sides and a series portion 21 in the middle. The contact portions 22 are provided with a plurality of bent contact protrusions 221. The contact protrusions 221 form contact cavities A31 and B41 with upper openings corresponding to plug-in units A3 and B41. The upper end face of the outer shell 1 is provided with contact ports A32 and B42 that are adapted to contact cavities A31 and B41. The contact ports A32 and B42 are located on the same end face, so that all connecting wires can be led out from the same direction, which can avoid excessive bending, reduce mechanical stress damage to the wires, reduce the occupation of surrounding space, and concentrate the cables on one side, which is convenient for planning the wiring path and avoids crossover and confusion. Moreover, when checking faults or replacing terminal units, the concentrated wiring on the same side can quickly locate the line and reduce the risk of misoperation.

[0020] like Figures 1 to 2 As shown, the upper surface of the outer housing 1 is provided with a plug-in slot 13 for plugging into the serial row 5, and the serial part 21 is provided with a plug-in interface 211 corresponding to the plug-in slot 13; there are two plug-in slots 13, and each terminal unit is connected in series with the serial row 5 through the combination of the plug-in slot 13. The serial row 5 is provided with a number of serial teeth 51, and each serial tooth 51 corresponds to a plug-in interface 211; when the number of terminal units to be combined exceeds the number of serial teeth 51 provided in a single serial row 5 (such as when two sets of combined terminal bodies need to be connected in series), it can be combined with the serial row 5 through another plug-in slot 13, so that the terminal units exceeding the number of serial teeth 51 can be connected in series well, so that the combination of terminal units is not limited by the maximum number of serial teeth 51 of the serial row 5, and the number of terminal units to be combined is more flexible.

[0021] like Figure 2 As shown, the contact cavity A31 is provided with a contact piece A33, which is a spring clip. Its two contact feet respectively contact the two sides of the contact cavity A31. The contact piece A33 is used to clamp the wire inserted into the contact port, so that the wire can be tightly connected to one side of the contact cavity. A pressing post 34 is provided near the contact piece A33. The upper end face of the outer shell 1 is provided with an opening adapted to the pressing post 34. When the pressing post 34 is pressed, it will push the contact piece A33 to retract, so that the contact port A32 has sufficient space for the wire to be inserted. When the pressing post 34 is released, the contact piece A33 will press the inserted wire under its own elastic force. The opening and closing degree of the contact port A32 can be easily controlled by the pressing post 34, making the wire insertion and removal simple and convenient.

[0022] Further improvements include a contact piece B43 in the contact cavity B41, which is a bent spring body with an opening. The contact piece B43 has a rotating arm 44 with a hook structure 441 at its connecting end. The hook structure 441 is adapted to the opening of the contact piece B43. The contact feet extending from the spring body contact both sides of the contact cavity B41: the contact foot near the contact opening B42 is used to press the wire, while the other is in normal contact with the side wall, jointly improving the electrical contact performance of the wire. The rotating arm 44 is close to the outer housing 1 and extends from its side. Moving the rotating arm 44 causes the hook structure 441 to hook and compress the contact piece B43, opening the contact opening B42 to allow sufficient space for the wire to insert. Reversing the rotating arm 44 causes the contact piece B43 to press the inserted wire under its own elastic force. The rotating arm 44 provides convenient control over the opening and closing of the contact opening B42, making wire insertion and removal simple and convenient.

[0023] like Figure 3 As shown, the contact protrusion 221 should be provided with a bent portion with a limiting opening 2212 for contact ports A32 and B42. The limiting opening 2212 cooperates with contact piece A33 or contact piece B43. This contact bend 2211 guides the insertion of the wire, ensuring smooth and unobstructed insertion. At the same time, the limiting opening 2212 restricts the range of movement of contact piece A33 or contact piece B43, preventing them from interfering with the insertion of the wire, thereby ensuring that the wire can be inserted easily and smoothly.

[0024] like Figures 4 to 5 As shown, the outer housing 1 has raised auxiliary protrusions 11 on both sides of its back surface, and an auxiliary groove 12 that matches the auxiliary protrusions 11 is provided on the front surface of the housing. The cooperation between the auxiliary protrusions 11 and the auxiliary groove 12 enables quick alignment and positioning during the stacking and assembly of terminal units, making the combination operation between terminal units easier. The auxiliary protrusions 11 and the auxiliary groove 12 increase the contact area, avoid pressure concentration, resist lateral offset or rotational force during insertion and removal, prevent terminal misalignment and loosening, and enhance bending resistance, reducing the risk of deformation.

[0025] Working principle of this utility model

[0026] During assembly, the terminal unit position is easily aligned by the cooperation of the auxiliary protrusion 11 and the auxiliary groove 12, so that each terminal unit can be easily and conveniently combined. The series connection between the terminal units is achieved by the cooperation of the series row 5 and the plug slot 13.

[0027] In use, the assembled device is fixed in its installation location, such as inside a transformer box. Simply turning the rotating arm 44 releases the locking of the contact port B42, allowing the wire to be inserted. Reversing the rotating arm 44 locks the wire in contact port B42. Pressing the pressing pin 34 opens contact port A32, allowing the wire to be easily and conveniently inserted. Releasing the pressing pin 34 engages the contact piece A33 at contact port A32, locking the wire in place. Disconnecting the wire is also simple and convenient; just operate the rotating arm 44 and the pressing pin 34.

[0028] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the design concept of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A series quick-connect terminal block, comprising a plurality of terminal units arranged in parallel, each terminal unit comprising an outer housing (1) and a conductive sheet (2), the outer housing (1) being provided with a plurality of plug-in units, each plug-in unit comprising a contact port for connecting a wire and a contact sheet, characterized in that: The plug-in unit includes plug-in unit A (3) and plug-in unit B (4) arranged symmetrically on the left and right. The conductive sheet (2) includes contact portions (22) arranged symmetrically on both sides and a series portion (21) in the middle. The contact portions (22) are provided with a plurality of bent contact protrusions (221). The contact protrusions (221) form contact cavities A (31) and B (41) with upper openings corresponding to plug-in unit A (3) and plug-in unit B (41). The upper end face of the outer shell (1) is provided with contact ports A (32) and B (42) that are adapted to contact cavities A (31) and B (41).

2. The series quick-connect terminal according to claim 1, characterized in that: The upper surface of the outer shell (1) is provided with a plug-in slot (13) for plugging in the serial row (5), and the serial part (21) is provided with a plug-in interface (211) corresponding to the plug-in slot (13); the number of plug-in slots (13) is two.

3. A series quick-connect terminal according to claim 1, characterized in that: The contact cavity A (31) is provided with a contact piece A (33), which is a spring clip, and its two contact feet respectively contact the two sides of the contact cavity A (31); a pressing post (34) is provided near the contact piece A (33), and an opening adapted to the pressing post (34) is provided on the upper end surface of the outer shell (1).

4. A series quick-connect terminal according to claim 1, characterized in that: The contact cavity B (41) is provided with a contact piece B (43), which is a bent spring body with an opening; the contact piece B (43) is connected to a rotating arm (44) with a hook structure (441) at its end, which is adapted to the opening of the contact piece B (43); the rotating arm (44) is close to the outer housing (1) and extends out from its side.

5. A series quick-connect terminal according to any one of claims 3 or 4, characterized in that: The contact protrusion (221) shall be provided with a bent portion with a limiting port (2212) for contact port A (32) and contact port B (42), and the limiting port (2212) shall cooperate with contact piece A (33) or contact piece B (43).

6. A series quick-connect terminal according to claim 1, characterized in that: The outer shell (1) has raised auxiliary protrusions (11) on both sides of its back side, and the front end of the shell has an auxiliary groove (12) that matches the auxiliary protrusions (11).

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