Terminal block and power distribution cabinet

Abstract

The utility model discloses a terminal block and a power distribution cabinet, comprising an insulating shell arranged in a cabinet, a locking foot arranged below the insulating shell, a first wiring unit and a second wiring unit arranged on both sides of the insulating shell, a movable wiring unit arranged outside the cabinet, and a conductive unit arranged in the insulating shell; the first end of the conductive unit is connected to the movable wiring unit, the second end of the conductive unit is connected to the first wiring unit, the third end of the conductive unit is connected to the second wiring unit, and the movable wiring unit can be plugged into the insulating shell or drawn out from the insulating shell. The utility model solves the problem that the terminal block can only be connected to external wires inside the cabinet, and shortens the wiring time.

Description

Technical Field

[0001] The utility model belongs to the technical field of power distribution cabinets, and specifically relates to a terminal block and a power distribution cabinet. Background Art

[0002] The power distribution cabinet is an important equipment for power distribution and control, which is usually used in industrial and commercial places, as well as some large residential areas. The power distribution cabinet can distribute power from the power supply to various loads, and control and protect the power. The power distribution cabinet usually consists of a metal cabinet and electrical components installed in the cabinet, including circuit breakers, contactors, relays, fuses, transformers, etc. These components can be combined and configured as needed to achieve different power distribution and control functions. The main function of the power distribution cabinet is to distribute power from the power supply to various loads, and control and protect the power. It can achieve overload protection and short circuit protection through components such as circuit breakers to ensure the safe and reliable operation of the power system. In order to facilitate maintenance and improve the reliability of the wiring of the power distribution cabinet, terminal blocks are mostly used for wiring in the power distribution cabinet. Under the premise of ensuring wiring flexibility, the existing terminal blocks can only connect external wires inside the cabinet, that is, the external wires must first enter the cabinet through the opening on the cabinet before they can be connected, and they must be operated one by one, and wiring inside the cabinet wastes on-site installation time.

[0003] The invention patent with application number CN201911189528.7 provides a terminal block for an electrical control cabinet. The limiting component provided in the invention facilitates pushing the entire wiring harness into the interior of the execution block, facilitates the overall installation of the wiring harness for fixation, and improves the wiring efficiency of the wiring harness; and the clamping wheel provided facilitates straightening the wiring harness on the one hand, ensuring that the wiring harness is accurately inserted into the interior of the execution block, and on the other hand, the clamping wheel provided facilitates guiding the wiring harness. However, the number of interfaces of the execution block in this structure may not match the number of interfaces required by the wiring harness, resulting in low wiring flexibility, and the external wires still need to be passed into the cabinet for wiring. Utility Model Content

[0004] The utility model aims to provide a terminal block and a power distribution cabinet, which solves the problem that the terminal block can only be connected to external wires inside the cabinet, thereby shortening the wiring time.

[0005] The utility model adopts a technical solution to solve its technical problem. In the first aspect, a terminal block is proposed, including an insulating shell arranged in a cabinet, a locking foot arranged below the insulating shell, a first wiring unit and a second wiring unit arranged on both sides of the insulating shell, a movable wiring unit arranged outside the cabinet, and a conductive unit arranged in the insulating shell; the first end of the conductive unit is connected to the movable wiring unit, the second end of the conductive unit is connected to the first wiring unit, the third end of the conductive unit is connected to the second wiring unit, and the movable wiring unit can be plugged into the insulating shell or pulled out from the insulating shell.

[0006] In an embodiment of the present application, the conductive unit includes a fixing groove provided on the insulating shell, and a first conductive sheet and a second conductive sheet provided in the fixing groove; one end of the first conductive sheet is connected to the first wiring unit, and the other end is abutted against the second conductive sheet; one end of the second conductive sheet is connected to the second wiring unit, and the other end is connected to the movable wiring unit.

[0007] In an embodiment of the present application, the movable wiring unit includes a third conductive sheet and a connector, the third conductive sheet is plugged into the connector, one end of the third conductive sheet is movably connected to the other end of the second conductive sheet, and the connector can be plugged into or pulled out of the insulating shell.

[0008] In the embodiment of the present application, a fixing strip is provided on a side of the insulating shell away from the fixing groove, a first fixing block is provided on the front end surface of the connector, and a second fixing block is provided on the rear end surface of the connector.

[0009] In the embodiment of the present application, the upper end surface and the lower end surface of the connector are both arranged with a first plug-in block and a second plug-in block that are perpendicular to each other, and the insulating shell is provided with a plug-in slot.

[0010] In the embodiment of the present application, a wire fixing cavity is provided in the connector, one end of the third conductive sheet is plugged into the surface of the wire fixing cavity, and the other end passes through the wire fixing cavity, and the cross-section of the other end of the third conductive sheet is semicircular.

[0011] In the embodiment of the present application, a parallel slot connected to the fixing slot is further provided on the insulating shell, and a fourth conductive sheet and a fifth conductive sheet are provided in the parallel slot.

[0012] In the embodiment of the present application, one end of the fourth conductive sheet and the fifth conductive sheet abuts against the second conductive sheet, and one end of the fourth conductive sheet and the fifth conductive sheet abutting against the second conductive sheet is arc-shaped.

[0013] In an embodiment of the present application, the first wiring unit includes a wiring block, a wiring cavity is provided in the wiring block, the wiring block is connected to one end of the first conductive sheet, and the first wiring unit also includes a wiring screw, which is used to fix the wiring harness in the wiring cavity.

[0014] In a second aspect, a power distribution cabinet is proposed, comprising a power distribution cabinet body and the above-mentioned terminal block, wherein the terminal block is arranged on one side of the power distribution cabinet body.

[0015] The beneficial effects of the utility model are:

[0016] 1. The utility model proposes a terminal block and a power distribution cabinet. The external wires are first connected to the movable wiring unit outside the cabinet, the insulating housing is arranged inside the cabinet, and then the movable wiring unit is plugged into the insulating housing through the opening on the cabinet. The external wires are connected outside the cabinet without inserting the external wires into the cabinet for connection, thereby shortening the wiring time.

[0017] 2. The utility model proposes a terminal block and a power distribution cabinet, wherein a fixing strip is arranged on the insulating housing, a first fixing block is arranged on the front end face of the connector, and a second fixing block is arranged on the rear end face of the connector, and a plurality of terminal blocks can be arranged side by side, so that the fixing strip is embedded in the fixing groove, and the first fixing block is embedded with the second fixing block to connect a plurality of terminal blocks and thus increase the number of interfaces of the terminal blocks. The number of interfaces of the terminal blocks can be adjusted according to actual needs, thereby expanding the application scope of the terminal blocks and improving the flexibility of wiring;

[0018] 3. In the terminal block and power distribution cabinet proposed by the present invention, the cross section of the other end of the third conductive sheet is semicircular, and the semicircular design is used to support external wires to improve the stability of the external wire connection. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The accompanying drawings, which are incorporated into the specification and constitute a part of the specification, illustrate embodiments of the utility model and are used together with the description to explain the principles of the utility model. In these drawings, similar reference numerals are used to represent similar elements. The drawings described below are some embodiments of the utility model, rather than all embodiments. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without paying creative work.

[0020] Figure 1 A schematic diagram of a terminal block according to an embodiment of the utility model;

[0021] Figure 2 A front view of a terminal block according to an embodiment of the utility model;

[0022] Figure 3 It is a right side view of a terminal block according to an embodiment of the utility model;

[0023] Figure 4 A schematic diagram of an insulating housing of a terminal block according to an embodiment of the utility model;

[0024] Figure 5 A front view of an insulating housing of a terminal block according to an embodiment of the utility model;

[0025] Figure 6 This is a schematic diagram of a first wiring unit and a movable wiring unit of a terminal block according to an embodiment of the utility model;

[0026] Figure 7 A schematic diagram of a connector of a terminal block according to an embodiment of the utility model;

[0027] Figure 8 This is a schematic diagram of a third conductive sheet of a terminal block according to an embodiment of the utility model;

[0028] Fig. 9 This is a schematic diagram of terminal block installation according to an embodiment of the utility model;

[0029] Fig.10 For the utility model embodiment Fig. 9 The enlarged view of A in FIG.

[0030] Fig.11 This is a schematic diagram of a terminal block before installation according to an embodiment of the utility model;

[0031] Fig.12 For the utility model embodiment Fig.11 The enlarged view of point B in FIG.

[0032] Fig.13 This is a schematic diagram of the internal installation of a terminal block distribution cabinet according to an embodiment of the utility model;

[0033] Fig.14 For the utility model embodiment Fig.13 Enlarged view of point C in FIG.

[0034] In the figure: 1. insulating shell; 11. fixing strip; 12. plug-in slot; 13. parallel slot; 14. fourth conductive sheet; 15. fifth conductive sheet; 2. locking foot; 3. first wiring unit; 31. wiring block; 32. wiring cavity; 33. wiring screw; 4. second wiring unit; 5. movable wiring unit; 51. third conductive sheet; 52. connector; 521. first fixed block; 522. second fixed block; 523. first plug-in block; 524. second plug-in block; 525. fixed line cavity; 6. conductive unit; 61. fixing slot; 62. first conductive sheet; 63. second conductive sheet. DETAILED DESCRIPTION

[0035] In order to more clearly illustrate the embodiments of the utility model and the technical solutions in the prior art, the specific implementation methods of the utility model will be described below with reference to the accompanying drawings. Obviously, the accompanying drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings and other implementation methods can be obtained based on these drawings without creative work. In addition, the design orientation only represents the relative position relationship between the components, not the absolute position relationship.

[0036] In the first aspect, the present invention provides a terminal block, see Figure 1-Figure 8 , mainly includes an insulating shell 1, a locking foot 2, a first wiring unit 3, a second wiring unit 4, a movable wiring unit 5, and a conductive unit 6.

[0037] It should be noted that Figure 2 The up and down direction in is the up and down direction of the terminal block, that is, the height direction; Figure 2 The left and right directions in are the left and right directions of the terminal block, that is, the width direction; Figure 3 The left and right direction in the figure is the front and back direction of the terminal block, that is, the length direction.

[0038] See also Figure 1-Figure 14 In the embodiment of the present application, the terminal block includes an insulating housing 1 disposed in a cabinet, a locking foot 2 is disposed below the insulating housing 1, and the locking foot 2 is used to fix the entire terminal block, a first wiring unit 3 and a second wiring unit 4 are disposed on both sides of the insulating housing 1, an active wiring unit 5 is disposed outside the cabinet, and a conductive unit 6 is disposed in the insulating housing 1. The active wiring unit 5 is arranged side by side with the first wiring unit 3, the first end of the conductive unit 6 is connected to the active wiring unit 5, the second end of the conductive unit 6 is connected to the first wiring unit 3, and the third end of the conductive unit 6 is connected to the second wiring unit 4, so that the active wiring unit 5, the first wiring unit 3, and the second wiring unit 4 are mutually conductive, and the active wiring unit 5 can be plugged into the insulating housing 1 (the active wiring unit 5 is connected to the conductive unit 6), and can also be pulled out from the insulating housing 1 (the active wiring unit 5 is disconnected from the conductive unit 6).

[0039] Compared with the prior art, the external wires can only be connected inside the cabinet, that is, the external wires must first enter the cabinet before they can be connected. In the present application, the external wires can be first connected to the active wiring unit 5 outside the cabinet, the insulating housing 1 is arranged inside the cabinet, and then the active wiring unit 5 is plugged into the insulating housing 1 through the opening on the cabinet, and the external wires are connected outside the cabinet, without inserting the external wires into the cabinet for connection, which shortens the wiring time.

[0040] In one embodiment, the conductive unit 6 includes a fixing groove 61 arranged on the insulating shell 1, and a first conductive sheet 62 and a second conductive sheet 63 arranged in the fixing groove 61, one end of the first conductive sheet 62 is connected to the first wiring unit 3, and the other end is abutted against the second conductive sheet 63, one end of the second conductive sheet 63 is connected to the second wiring unit 4, and the other end is connected to the movable wiring unit 5.

[0041] In one possible implementation, the active wiring unit 5 includes a third conductive sheet 51 and a connector 52, the third conductive sheet 51 is plugged into the connector 52, one end of the third conductive sheet 51 is movably connected to the other end of the second conductive sheet 63, the connector 52 can be plugged into the insulating shell 1 or pulled out from the insulating shell 1, when the connector 52 is plugged into the insulating shell 1, one end of the third conductive sheet 51 is abutted against the other end of the second conductive sheet 63 (the active wiring unit 5 is connected to the conductive unit 6); when the connector 52 is separated from the insulating shell 1, one end of the third conductive sheet 51 is separated from the other end of the second conductive sheet 63 (the active wiring unit 5 is disconnected from the conductive unit 6).

[0042] As can be seen from the background technology, the number of interfaces provided by the terminal block may be inconsistent with the number of interfaces required by the wiring harness. In order to improve the application scope of the terminal block and improve the flexibility of wiring, a fixing strip 11 is provided on the side of the insulating shell 1 away from the fixing groove 61, and a first fixing block 521 is provided on the front end face of the connecting head 52, and a second fixing block 522 is provided on the rear end face of the connecting head 52. Multiple terminal rows can be placed side by side so that the fixing strip 11 is embedded in the fixing groove 61, and the first fixing block 521 and the second fixing block 522 are embedded to connect multiple terminal rows and thereby increase the number of interfaces of the terminal row. The number of interfaces of the terminal row can be adjusted according to actual needs, thereby expanding the application scope of the terminal row and improving the flexibility of wiring.

[0043] It should be noted that the lengths of the first conductive sheet 62 and the second conductive sheet 63 are equal, and the length of the first conductive sheet 62 plus the length of the fixing strip 11 is equal to the depth of the fixing groove 61, so that when multiple terminal rows are arranged side by side, the positions of the first conductive sheet 62 and the second conductive sheet 63 are further fixed to avoid short circuit of the terminal row.

[0044] Furthermore, the upper end face and the lower end face of the connector 52 are both arranged with a first plug-in block 523 and a second plug-in block 524 which are perpendicular to each other, and a corresponding plug-in slot 12 is provided on the insulating shell 1, and the plug-in slot 12 is cross-shaped. The second plug-in block 524 is used to limit the plug-in position of the connector 52, and the first plug-in block 523 is used to fix the connector 52.

[0045] Furthermore, a wire fixing cavity 525 is provided in the connector 52, one end of the third conductive sheet 51 is plugged into the surface of the wire fixing cavity 525, and the other end passes through the wire fixing cavity 525. The section of the other end of the third conductive sheet 51 is semicircular, and the semicircular design is used to support external wires to improve the stability of the external wire connection. The external wires are supported by the other end of the third conductive sheet 51, and then enter the wire fixing cavity 525, and are fixed in the wire fixing cavity 525 by crimping the third conductive sheet 51 and the surface of the connector 52. Specifically, one end of the third conductive sheet 51 is two conductive plates, and the distance between the two conductive plates is equal to the height of the second conductive sheet 63.

[0046] In order to increase the function of the terminal block wiring circuit, in one embodiment, a parallel slot 13 connected to the fixed slot 61 is also provided on the insulating shell 1, and a fourth conductive plate 14 and a fifth conductive plate 15 are provided in the parallel slot 13. The shorting piece can be inserted into the parallel slot 13 to realize parallel connection.

[0047] Furthermore, one end of the fourth conductive sheet 14 and the fifth conductive sheet 15 abuts against the second conductive sheet 63, and the end of the fourth conductive sheet 14 and the fifth conductive sheet 15 abutting against the second conductive sheet 63 is arc-shaped. The end of the fourth conductive sheet 14 and the fifth conductive sheet 15 abutting against the second conductive sheet 63 is set to be an arc-shaped, that is, to ensure the connectivity between the fourth conductive sheet 14 and the fifth conductive sheet 15 and the second conductive sheet 63. At the same time, when installing the fourth conductive sheet 14 and the fifth conductive sheet 15, the contact area between the fourth conductive sheet 14 and the fifth conductive sheet 15 and the second conductive sheet 63 is small, and the friction force generated is small, which is convenient for installing the fourth conductive sheet 14 and the fifth conductive sheet 15.

[0048] In one embodiment, the first wiring unit 3 and the second wiring unit 4 have the same structure, the first wiring unit 3 includes a wiring block 31, a wiring cavity 32 is arranged inside the wiring block 31, the wiring block 31 is connected to one end of the first conductive sheet 62, specifically can be abutted, the first wiring unit 3 also includes a wiring screw 33, a first threaded hole is arranged on the insulating shell 1, a second threaded hole is arranged on the wiring block 31, the first threaded hole and the second threaded hole overlap in the height direction, the wiring cavity 32 can accommodate the wiring harness in the cabinet, and is crimped and fixed by the wiring screw 33.

[0049] Furthermore, in order to reduce the weight of the terminal block, a plurality of weight-reducing grooves are provided on the insulating housing 1 .

[0050] Second, see Figure 9-14 , a power distribution cabinet is proposed, including a power distribution cabinet body and the above-mentioned terminal block, wherein the terminal block is arranged on one side of the power distribution cabinet body.

[0051] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the statement "comprise a ..." do not exclude the presence of other identical elements in the process, method, article or device comprising the elements.

[0052] The above contents are further detailed descriptions of the present invention in combination with specific preferred implementation methods, and the specific embodiments of the present invention cannot be considered to be limited to these descriptions. For ordinary technicians in the technical field to which the present invention belongs, several simple deductions or substitutions can be made without departing from the concept of the present invention, which should be regarded as falling within the protection scope of the present invention.

Claims

1. A terminal block, characterized in that: The invention comprises an insulating shell (1) arranged in a cabinet, a locking foot (2) arranged below the insulating shell (1), a first wiring unit (3) and a second wiring unit (4) arranged on both sides of the insulating shell (1), a movable wiring unit (5) arranged outside the cabinet, and a conductive unit (6) arranged in the insulating shell (1); a first end of the conductive unit (6) is connected to the movable wiring unit (5), a second end of the conductive unit (6) is connected to the first wiring unit (3), a third end of the conductive unit (6) is connected to the second wiring unit (4), and the movable wiring unit (5) can be plugged into the insulating shell (1) or drawn out from the insulating shell (1).

2. A terminal block according to claim 1, characterized in that: The conductive unit (6) comprises a fixing groove (61) provided on the insulating housing (1), and a first conductive sheet (62) and a second conductive sheet (63) provided in the fixing groove (61); one end of the first conductive sheet (62) is connected to the first wiring unit (3), and the other end is in contact with the second conductive sheet (63); one end of the second conductive sheet (63) is connected to the second wiring unit (4), and the other end is connected to the movable wiring unit (5).

3. A terminal block according to claim 2, characterized in that: The movable wiring unit (5) comprises a third conductive sheet (51) and a connector (52), wherein the third conductive sheet (51) is plugged into the connector (52), one end of the third conductive sheet (51) is movably connected to the other end of the second conductive sheet (63), and the connector (52) can be plugged into the insulating housing (1) or withdrawn from the insulating housing (1).

4. A terminal block according to claim 3, characterized in that: A fixing strip (11) is provided on a side of the insulating housing (1) away from the fixing groove (61), a first fixing block (521) is provided on the front end surface of the connector (52), and a second fixing block (522) is provided on the rear end surface of the connector (52).

5. A terminal block according to claim 3, characterized in that: The upper end surface and the lower end surface of the connector (52) are both provided with a first plug-in block (523) and a second plug-in block (524) which are perpendicular to each other, and the insulating housing (1) is provided with a plug-in slot (12).

6. A terminal block according to claim 3, characterized in that: A wire fixing cavity (525) is provided in the connector (52); one end of the third conductive sheet (51) is plugged into the surface of the wire fixing cavity (525), and the other end passes through the wire fixing cavity (525); the other end of the third conductive sheet (51) has a semicircular cross-section.

7. A terminal block according to claim 2, characterized in that: The insulating housing (1) is also provided with a parallel slot (13) communicating with the fixing slot (61), and a fourth conductive sheet (14) and a fifth conductive sheet (15) are provided in the parallel slot (13).

8. A terminal block according to claim 7, characterized in that: One end of the fourth conductive sheet (14) and the fifth conductive sheet (15) abuts against the second conductive sheet (63); one end of the fourth conductive sheet (14) and the fifth conductive sheet (15) abutting against the second conductive sheet (63) is in an arc shape.

9. A terminal block according to claim 2, characterized in that: The first wiring unit (3) comprises a wiring block (31), a wiring cavity (32) is provided in the wiring block (31), the wiring block (31) is connected to one end of the first conductive sheet (62), and the first wiring unit (3) further comprises a wiring screw (33), the wiring screw (33) is used to fix the wiring harness in the wiring cavity (32).

10. A power distribution cabinet, characterized in that: It comprises a power distribution cabinet body, and the terminal block according to any one of claims 1 to 9, wherein the terminal block is arranged on one side of the power distribution cabinet body.

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