Two-in-one wiring board

Abstract

The utility model relates to a two-in-one wiring board. The technical problem to be solved by the utility model is to provide a two-in-one wiring board. According to the technical scheme, the wiring board comprises a wiring board external connection portion, the wiring board external connection portion is vertically bent to form a wiring board connection portion, the wiring board connection portion is sequentially bent to form a wiring board arc receding portion and a wiring board welding portion, the bottom end of the wiring board welding portion is bent to form a wiring board positioning portion, and the wiring board arc receding portion is connected with the wiring board positioning portion. One side end of the wiring board welding part is bent inwards to form a wiring board transition part, a wiring board wrapping part and a wiring board internal connection part in sequence, and the other side end of the wiring board internal connection part horizontally extends to form a wiring board clamping part. The two-in-one wiring board has the advantages that the two-in-one wiring board is integrally formed, welding points are reduced, the strength and long-term reliability of the whole structure are improved, and the production process is simplified; the improved structure enables welding to be more stable, and the risk of loosening or cracking after frequent action of a welding point is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of circuit breaker thermal systems, in particular to a two-in-one wiring board. Background Art

[0002] A circuit breaker is an electrical switching device used to control circuits and protect circuits and equipment from overloads, short circuits, and other faults. The circuit breaker thermal system component is one of the core components of the circuit breaker. Its function is to fuse itself to cut off the current when the current in the circuit breaker increases abnormally, thereby protecting the safe operation of the circuit. Figure 4 and Figure 5 As shown, the circuit breaker thermal system assembly includes a double metal trip assembly 51, an arc-starting piece 52, a connecting piece 53, a terminal block 54, and a terminal assembly 55 sleeved on the terminal block 54. The double metal trip assembly 51, the arc-starting piece 52, and the ends of the connecting piece 53 are welded together, and the other end of the connecting piece 53 is welded to the terminal block 54. The other end of the terminal block 54 is used for external wiring. The terminal assembly 55 includes a wiring frame 56 and a wiring screw 57 penetrated by the wiring frame 56. The wiring frame 56 is provided with a wiring port 57 for the terminal block 54 to penetrate. The existing circuit breaker thermal system assembly has the following problems: 1. The connecting piece 53 and the terminal block 54 adopt a split structure, which increases the number of welding points, resulting in weaker overall structural strength, reduced long-term reliability and increased production steps; 2. The ends of the dual-metal trip assembly 51, the arc-starting piece 52, and the connecting piece 53 are welded together. Due to frequent operation, cracks or loosening of the welds are likely to occur, affecting the contact quality. At the connection point of the terminal block 54, the contact resistance is increased, which in turn causes local overheating or arcing, affecting safety. Utility Model Content

[0003] In order to solve the above problems, the technical problem to be solved by the present invention is to provide a two-in-one wiring board.

[0004] The technical solution adopted by the utility model two-in-one terminal block: It is characterized in that it includes a terminal block external connection part for sleeved on the terminal frame, the terminal block external connection part is vertically bent to form a terminal block connecting part, the terminal block connecting part is bent in sequence to form a terminal block arc giving part, a terminal block welding part welded together with a double metal trip assembly, the bottom end of the terminal block welding part is bent to form a terminal block positioning part for positioning the double metal trip assembly and the end of the arc starting piece, one side end of the terminal block welding part is bent inward to form a terminal block transition part, a terminal block wrapping part and a terminal block internal connection part in sequence, the other side end of the terminal block internal connection part is horizontally extended to form a terminal block clamping part, the upper and lower parts of the terminal block internal connection part are provided with internal clamping slots, and the terminal block clamping part is provided with a clamping part protrusion corresponding to the internal clamping slot;

[0005] The width of the external connection part of the terminal board is smaller than the width of the wiring port. The front end of the external connection part of the terminal board is provided with a front stopper of the external connection part for limiting the wiring frame. The width of the front stopper of the external connection part is greater than the width of the wiring port, and the width of the front stopper of the external connection part is smaller than the height of the wiring port.

[0006] A terminal block positioning notch is provided on one side of the terminal block connection portion for positioning the terminal block when the terminal block is installed with the base.

[0007] A wiring board protrusion is provided on the other side of the wiring board connecting portion at a position corresponding to the wiring board positioning recess. The wiring board protrusion is vertically bent to form a wiring board lower limiting portion for limiting the lower portion of the wiring frame.

[0008] A clamping convex point is provided on the inner side of the clamping portion convex block.

[0009] The terminal block positioning portion is bent vertically upward to form a positioning portion protrusion, and a wrapping portion recess that docks with the positioning portion protrusion is provided at the bottom of the terminal block wrapping portion.

[0010] The advantages of the two-in-one terminal block of the utility model are: 1. The two-in-one terminal block is formed as an integral piece, which reduces the number of welding points, improves the strength and long-term reliability of the overall structure, and simplifies the production process; 2. The improved structure makes the welding more stable, reducing the risk of loosening or cracking of the welding points after frequent operation; 3. The terminal frame is installed more stably, reduces contact resistance, and improves the safety and stability of the product. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] The present invention will be further described in detail below with reference to the accompanying drawings and specific implementation methods.

[0012] Figure 1 This is a structural diagram of the two-in-one wiring board of the utility model;

[0013] Figure 2 This is another structural schematic diagram of the two-in-one wiring board of the utility model;

[0014] Figure 3 yes Figure 2 Magnified image of;

[0015] Figure 4 It is a structural diagram of the thermal system components of the circuit breaker of the utility model;

[0016] Figure 5 It is a structural schematic diagram of the terminal assembly of the utility model. DETAILED DESCRIPTION

[0017] like Figure 1-3As shown, the two-in-one terminal block involved in the present invention includes a terminal block external connection portion 1 for being set on a terminal frame 56, the terminal block external connection portion 1 is vertically bent to form a terminal block connecting portion 2, the terminal block connecting portion 2 is sequentially bent to form a terminal block arc giving portion 3, a terminal block welding portion 4 welded to a double metal trip assembly 51, the bottom end of the terminal block welding portion 4 is bent to form a terminal block positioning portion 5 for positioning the double metal trip assembly 51 and the end of the arc starting piece 52, one side end of the terminal block welding portion 4 is bent inward to form a terminal block transition portion 6, a terminal block wrapping portion 7 and a terminal block internal connection portion 8 in sequence, the other side end of the terminal block internal connection portion 8 is horizontally extended to form a terminal block clamping portion 9, the upper and lower parts of the terminal block internal connection portion 8 are provided with internal card slots 11, and the terminal block clamping portion 9 is provided with a card slot connected to the inner The card portion protrusion 12 corresponds to the card slot 11; the width of the external connection part 1 of the terminal block is smaller than the width of the wiring port 57, and the front end of the external connection part 1 of the terminal block is provided with an external connection part front stopper 14 for limiting the wiring frame 56, and the width of the external connection part front stopper 14 is greater than the width of the wiring port 57, and the width of the external connection part front stopper 14 is smaller than the height of the wiring port 57. The two-in-one terminal block is formed as one piece, which reduces the welding points, improves the strength and long-term reliability of the overall structure, and simplifies the production process; the structure of the terminal block positioning part 5, the terminal block transition part 6, the terminal block wrapping part 7 and the terminal block internal connection part 8 can wrap the double gold trip assembly 51 and the arc starting piece 52, and perform multiple limiting operations, which effectively makes the welding more stable and reduces the risk of loosening or cracking of the welding points after frequent operation.

[0018] A terminal block positioning notch 17 is provided on one side of the terminal block connection portion 2 for positioning the terminal block when installed with the base. The terminal block is installed in the housing base with a positioning structure, which further improves the accuracy of terminal block installation.

[0019] A terminal block protrusion 18 is provided on the other side of the terminal block connection portion at a position corresponding to the terminal block positioning recess 17. The terminal block protrusion 18 is vertically bent to form a terminal block lower limit portion 19 for limiting the lower part of the terminal frame 56, further reducing the shaking of the terminal frame 56 during installation, effectively reducing the contact resistance during wiring, and improving the safety and stability of the product.

[0020] A locking protrusion 21 is provided on the inner side of the locking protrusion 12 to effectively limit the position.

[0021] The terminal block positioning portion 5 is bent vertically upward to form a positioning portion protrusion 22, and a wrapping portion notch 23 is provided at the bottom of the terminal block wrapping portion 7 to dock with the positioning portion protrusion 22, making the structure more firm and tight.

[0022] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present invention are included in the scope of protection of the present invention.

Claims

1. A two-in-one wiring board, characterized by: The invention comprises a terminal board external connection part (1) for sleeved on a terminal frame (56), the terminal board external connection part (1) is vertically bent to form a terminal board connection part (2), the terminal board connection part (2) is bent in sequence to form a terminal board arc giving part (3), a terminal board welding part (4) welded together with a double metal tripping component (51), the bottom end of the terminal board welding part (4) is bent to form a terminal board positioning part (5) for positioning the end of the double metal tripping component (51) and the arc starting piece (52), one side end of the terminal board welding part (4) is bent inward to form a terminal board transition part (6), a terminal board wrapping part (7) and a terminal board internal connection part (8), the other side end of the terminal board internal connection part (8) is horizontally extended to form a terminal board clamping part (9), the upper and lower parts of the terminal board internal connection part (8) are provided with internal clamping slots (11), and the terminal board clamping part (9) is provided with a clamping part protrusion (12) corresponding to the internal clamping slot (11); The width of the external connection portion (1) of the wiring board is smaller than the width of the wiring port (57); a front stopper (14) for limiting the position of the wiring frame (56) is provided at the front end of the external connection portion (1); the width of the front stopper (14) is larger than the width of the wiring port (57); and the width of the front stopper (14) is smaller than the height of the wiring port (57).

2. The two-in-one wiring board according to claim 1, characterized in that: A terminal block positioning notch (17) for positioning the terminal block when mounted on the base is provided on one side of the terminal block connecting portion (2).

3. The two-in-one wiring board according to claim 2, characterized in that: A terminal block protrusion (18) is provided on the other side of the terminal block connection portion at a position corresponding to the terminal block positioning notch (17), and the terminal block protrusion (18) is vertically bent to form a terminal block lower limiting portion (19) for limiting the lower portion of the terminal frame (56).

4. The two-in-one wiring board according to claim 1, characterized in that: A clamping convex point (21) is provided on the inner side of the clamping portion convex block (12).

5. The two-in-one wiring board according to claim 1, characterized in that: The terminal block positioning portion (5) is bent vertically upward to form a positioning portion protrusion (22), and a wrapping portion notch (23) is provided at the bottom of the terminal block wrapping portion (7) to engage with the positioning portion protrusion (22).

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