Wiring terminal and circuit breaker

Abstract

The utility model belongs to the technical field of low-voltage electric appliances, and particularly discloses a wiring terminal and a circuit breaker. According to the wiring terminal provided by the utility model, the wiring frame is arranged in the shell, and the wiring board divides the wiring frame into the first wiring hole and the second wiring hole, so that two wires can be connected at the same time; by adjusting the adjusting piece, the pressing plate can move towards the wiring board, and then the wire in the first wiring hole is pressed; the side, facing the wiring port, of the pressing plate is provided with an upper protection plate, the side, facing the wiring port, of the wiring board is provided with a middle protection plate, the side, facing the wiring port, of the wiring frame is provided with a lower protection plate, the upper protection plate, the middle protection plate and the lower protection plate are arranged to prevent metal pieces from being exposed, the insulation and isolation effects are achieved, the electric shock probability of operators or residents is reduced, and potential safety hazards are reduced; and the use safety level of the circuit breaker is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of low-voltage electrical appliances, in particular to a wiring terminal and a circuit breaker. Background Art

[0002] A circuit breaker is a switching device capable of closing, carrying, and interrupting current under normal circuit conditions, and carrying and interrupting current under abnormal circuit conditions within a specified timeframe. Currently, the terminal blocks of miniature circuit breakers on the market can only accept a single conductor. Connecting two conductors of different cross-sectional areas to the same terminal block can easily cause them to loosen, making it difficult to meet customer requirements for connecting two conductors. To address this issue, the terminal block is typically divided into two independent wiring holes. The two holes, working together, allow for better connection of two conductors of different cross-sectional areas.

[0003] However, some structures such as the terminal board, pressure plate and terminal frame arranged in the wiring frame of the circuit breaker will be partially exposed at the wiring port of the circuit breaker, which increases the probability of electric shock to operators or residents and poses a safety hazard. Utility Model Content

[0004] The purpose of the utility model is to provide a wiring terminal and a circuit breaker, which reduce the probability of electric shock to operators or residents, reduce safety hazards, and improve the safety level of the circuit breaker.

[0005] To achieve this purpose, the present invention adopts the following technical solutions:

[0006] In a first aspect, a wiring terminal is provided for a circuit breaker, wherein the circuit breaker includes a housing having a wiring port provided thereon, and the wiring terminal includes:

[0007] a terminal block, the terminal block being disposed in the housing;

[0008] A wiring frame is disposed in the housing, one end of the wiring board is placed in the middle of the wiring frame, the wiring board divides the wiring frame into a first wiring hole and a second wiring hole, a middle guard plate is provided on the side of the wiring board facing the wiring hole, and a lower guard plate is provided on the side of the wiring frame facing the wiring hole;

[0009] A pressing plate, movably connected to the wiring frame, the pressing plate is placed in the first wiring hole, and an upper guard plate is provided on the side of the pressing plate facing the wiring port;

[0010] An adjusting member, one end of which passes through the wiring frame and is connected to the pressing plate, the adjusting member is screwed to the wiring frame, and the adjusting member can drive the pressing plate to move toward the wiring board.

[0011] As an optional technical solution for the above-mentioned terminal block, one end of the terminal block is connected to a snap-in plate, the snap-in plate is placed outside the terminal frame, and both ends of the snap-in plate are against the end face of the terminal frame, the middle guard plate includes a middle guard plate body and snap-in grooves arranged at both ends of the middle guard plate body, the snap-in grooves are snapped onto the snap-in plate, and the middle guard plate body is in contact with the end face of the terminal block.

[0012] As an optional technical solution for the above-mentioned terminal block, two clamping blocks are protruded from both ends of the middle guard plate body, the two clamping blocks are arranged at intervals, and the clamping groove is formed between the two clamping blocks.

[0013] As an optional technical solution for the above-mentioned terminal block, the pressure plate is a U-shaped structure, one end of the pressure plate is placed in the first wiring hole, the adjustment member passes through the other end of the pressure plate and the wiring frame and abuts against one end of the pressure plate, the middle part of the pressure plate faces the wiring port, and the upper guard plate is placed in the middle part of the pressure plate relative to the outside of the wiring port.

[0014] As an optional technical solution of the above-mentioned terminal block, the other end of the pressure plate is provided with a U-shaped groove, the adjusting member includes a head and a rod, a limiting protrusion is provided circumferentially at the position where the rod is connected to the head, the head passes through the U-shaped groove, and the limiting protrusion is placed on the inner side of the pressure plate and can abut against the inner side wall of the pressure plate; and / or

[0015] Two opposite sides of the other end of the pressing plate are respectively provided with supporting arms, the supporting arms respectively extend toward the wiring frame, and the supporting arms can be against the wiring frame.

[0016] As an optional technical solution for the above-mentioned terminal block, sliders are respectively protruded on two opposite sides of the middle part of the pressure plate, a positioning hole is provided in the middle part of the pressure plate, a slide groove and a positioning block are provided on one side of the upper guard plate, the slider is slidably set in the slide groove, and the positioning block is clamped in the positioning hole.

[0017] As an optional technical solution for the above-mentioned terminal block, the upper guard plate is L-shaped, and the upper guard plate includes a vertical plate and a horizontal plate. The vertical plate of the upper guard plate is connected to the middle part of the pressure plate, and the horizontal plate of the upper guard plate is protruding outside the wiring port.

[0018] As an optional technical solution of the above-mentioned terminal block, positioning arms are respectively provided on two opposite sides of the vertical plate of the upper guard plate, and the positioning arms are used for sliding connection with the shell.

[0019] As an optional technical solution for the above-mentioned terminal block, the lower guard plate includes a lower guard plate body and an elastic member, one end of the elastic member is connected to the lower guard plate body, and the other end of the elastic member is used to connect to the outer shell, a card slot is provided on one side of the lower guard plate body, and a card block is provided on the end face of the wiring frame, and the card block is clamped in the card slot.

[0020] In a second aspect, a circuit breaker is provided, comprising any one of the above-mentioned connection terminals.

[0021] Beneficial effects of the utility model:

[0022] The utility model provides a wiring terminal, wherein a wiring frame is arranged in a shell, and a wiring board divides the wiring frame into a first wiring hole and a second wiring hole, so that two wires can be connected at the same time; the adjusting piece can be adjusted to move the pressure plate toward the wiring board, thereby pressing the wire in the first wiring hole; an upper protective plate is provided on the side of the pressure plate facing the wiring port, a middle protective plate is provided on the side of the wiring board facing the wiring port, and a lower protective plate is provided on the side of the wiring frame facing the wiring port; the arrangement of the upper protective plate, the middle protective plate and the lower protective plate prevents metal parts from being exposed, plays a role of insulation isolation, reduces the probability of electric shock for operators or residents, reduces safety hazards, and improves the safety level of circuit breaker use. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a schematic structural diagram of a circuit breaker provided by an embodiment of the present utility model;

[0024] Figure 2 This is a schematic structural diagram of the wiring terminal provided by an embodiment of the present utility model;

[0025] Figure 3 This is a schematic structural diagram of a wiring frame provided by an embodiment of the present utility model;

[0026] Figure 4 This is a schematic structural diagram of a wiring board provided by an embodiment of the present utility model;

[0027] Figure 5 This is a schematic structural diagram of the middle guard plate provided by an embodiment of the present utility model;

[0028] Figure 6 This is a schematic diagram of the connection structure between the upper guard plate and the pressure plate provided in an embodiment of the present utility model;

[0029] Figure 7 This is a schematic structural diagram of an adjusting member provided in an embodiment of the present utility model;

[0030] Figure 8 This is a schematic structural diagram of a pressure plate provided by an embodiment of the present utility model;

[0031] Figure 9This is a schematic structural diagram of an upper guard plate provided by an embodiment of the present utility model;

[0032] Figure 10 It is a structural schematic diagram of the lower guard plate provided in an embodiment of the present utility model.

[0033] In the picture:

[0034] 100, housing; 101, wiring port;

[0035] 1. Wiring board; 11. Snap-in board;

[0036] 2. Wiring frame; 21. First wiring hole; 22. Second wiring hole; 23. Card block;

[0037] 3. Middle guard plate; 31. Middle guard plate body; 32. Snap-fit ​​groove; 33. Snap-fit ​​block;

[0038] 4. Lower guard plate; 41. Lower guard plate body; 411. Card slot; 42. Elastic member;

[0039] 5. Pressing plate; 51. U-shaped groove; 52. Support arm; 53. Slider; 54. Positioning hole;

[0040] 6. Upper guard plate; 61. Slide; 62. Positioning block; 63. Vertical plate; 64. Horizontal plate; 65. Slide seat; 66. Positioning arm;

[0041] 7. Adjusting part; 71. Limiting protrusion. DETAILED DESCRIPTION

[0042] The present invention will be further described in detail below with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are intended only to illustrate the present invention and are not intended to limit the present invention. It should also be noted that, for ease of description, the accompanying drawings only illustrate portions relevant to the present invention, not all of its components.

[0043] In the description of this utility model, unless otherwise specified or limited, the terms "connected," "connect," and "fixed" should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0044] In the present invention, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature between them. Moreover, a first feature being "above," "above," and "above" a second feature may include the first feature being directly above or obliquely above the second feature, or may simply mean that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature may include the first feature being directly below or obliquely below the second feature, or may simply mean that the first feature is lower in level than the second feature.

[0045] In the description of this embodiment, the terms "upper," "lower," "right," and other orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely for ease of description and simplified operation. They do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on the present invention. Furthermore, the terms "first" and "second" are used solely for descriptive purposes and have no special meaning.

[0046] like Figure 1 As shown, this embodiment provides a circuit breaker. This circuit breaker can also be other switching devices with wiring terminals, and is not specifically limited here. The circuit breaker includes a housing 100, which is provided with a wiring port 101. The wiring port 101 is provided with a wiring terminal for connecting to a wire. The wiring port 101 can be provided at both ends of the housing 100, and each wiring port 101 can be provided with a corresponding wiring terminal.

[0047] Combine Figure 1 and Figure 2 As shown, the terminal block includes a terminal block 1, a terminal frame 2, a pressure plate 5, and an adjustment member 7. The terminal block 1 is disposed within a housing 100, and the terminal frame 2 is disposed within the housing 100. One end of the terminal block 1 is positioned in the middle of the terminal frame 2. The terminal block 1 divides the terminal frame 2 into a first wiring hole 21 and a second wiring hole 22. A middle protective plate 3 is provided on the side of the terminal block 1 facing the wiring port 101, and a lower protective plate 4 is provided on the side of the terminal frame 2 facing the wiring port 101. The pressure plate 5 is movably connected to the terminal frame 2. The pressure plate 5 is positioned within the first wiring hole 21, and an upper protective plate 6 is provided on the side of the pressure plate 5 facing the wiring port 101. One end of the adjustment member 7 passes through the terminal frame 2 and is connected to the pressure plate 5. The adjustment member 7 is screwed to the terminal frame 2, and the adjustment member 7 can drive the pressure plate 5 to move toward the terminal block 1.

[0048] The wiring frame 2 is arranged in the housing 100, and the terminal block 1 divides the wiring frame 2 into a first wiring hole 21 and a second wiring hole 22, which can connect two wires at the same time; by adjusting the adjusting piece 7, the pressure plate 5 can be moved toward the terminal block 1, thereby pressing the wire in the first wiring hole 21; the side of the pressure plate 5 facing the wiring port 101 is provided with an upper protective plate 6, the side of the terminal block 1 facing the wiring port 101 is provided with a middle protective plate 3, and the side of the wiring frame 2 facing the wiring port 101 is provided with a lower protective plate 4. The arrangement of the upper protective plate 6, the middle protective plate 3 and the lower protective plate 4 prevents metal parts from being exposed, plays a role of insulation isolation, reduces the probability of electric shock to operators or residents, reduces safety hazards, and improves the safety level of the circuit breaker.

[0049] The terminal block 1 is fixedly disposed in the housing 100, and the terminal frame 2 is movably disposed in the housing 100. The position of the terminal frame 2 can be moved to adjust the size of the first terminal hole 21 and the second terminal hole 22, thereby connecting two wires of different cross-sections at the same time.

[0050] The upper guard plate 6, the middle guard plate 3 and the lower guard plate 4 are all insulating parts, which play the role of isolation and insulation, reducing the probability of electric shock to operators or residents.

[0051] In some embodiments, as Figure 2 and Figure 3 As shown, the wiring frame 2 is a square frame structure with four side walls, two of which are opposite to each other and are respectively the first side wall and the second side wall, and the other two are respectively the third side wall and the fourth side wall. A first wiring hole 21 is formed between the first side wall and the wiring board 1, and a second wiring hole 22 is formed between the second side wall and the wiring board 1. Optionally, the wiring frame 2 is formed by bending a plate-like member, with the ends of the plate-like member overlapping to form the first side wall.

[0052] In some embodiments, as Figure 2 、 Figure 4 and Figure 5 As shown, one end of the terminal block 1 is connected to a snap-in plate 11, which is placed outside the terminal frame 2, and the two ends of the snap-in plate 11 are against the end faces of the terminal frame 2. When the terminal frame 2 moves relative to the terminal block 1, the snap-in plate 11 guides the movement of the terminal frame 2. The middle guard plate 3 includes a middle guard plate body 31 and snap-in grooves 32 provided at both ends of the middle guard plate body 31. The snap-in grooves 32 are snap-in to the snap-in plate 11, and the middle guard plate body 31 fits the end face of the terminal block 1. The middle guard plate body 31 shields the terminal block 1 from being exposed, preventing operators or users from touching the terminal block 1, thereby improving the safety of the circuit breaker. The middle guard plate 3 is snap-in to the snap-in plate 11, making installation easy.

[0053] Optionally, two clamping blocks 33 are protruded from each end of the middle shield body 31. The two clamping blocks 33 are spaced apart, and a clamping groove 32 is formed between the two clamping blocks 33. When the clamping plate 11 is clamped into the clamping groove 32, the clamping blocks 33 wrap around the portion of the clamping plate 11 that contacts the end face of the wiring frame 2. The clamping blocks 33 abut the end face of the wiring frame 2, and the middle shield body 31 abuts against the clamping plate 11, thereby completing the connection between the middle shield body 31 and the clamping plate 11.

[0054] In some embodiments, combined Figure 1 、 Figure 2 and Figure 6 As shown, the pressing plate 5 is a U-shaped structure. One end of the pressing plate 5 is placed in the first wiring hole 21. The adjusting member 7 passes through the other end of the pressing plate 5 and the wiring frame 2 and abuts against one end of the pressing plate 5. The middle part of the pressing plate 5 faces the wiring port 101. The upper protective plate 6 is placed in the middle part of the pressing plate 5 on the outside of the wiring port 101. Adjusting the adjusting member 7 and pressing the pressing plate 5 against the pressing plate 5 can cause the pressing plate 5 to move relative to the wiring board 1, thereby tightening the wires in the first wiring hole 21 or loosening the wires in the first wiring hole 21. The middle part of the pressing plate 5 faces the wiring port 101, which can block the gap between the pressing plate 5 and the first side wall of the wiring frame 2, preventing users from accidentally connecting external wires between the pressing plate 5 and the first side wall of the wiring frame 2. The upper protective plate 6 connected to the pressing plate 5 moves together with the pressing plate 5, which can provide isolation and insulation.

[0055] Alternatively, as Figure 2 、 Figure 6 and Figure 7 As shown, the other end of the pressure plate 5 is provided with a U-shaped groove 51. The adjusting member 7 comprises a head and a stem. A stopper protrusion 71 is circumferentially provided at the junction of the stem and the head. The head penetrates the U-shaped groove 51. The stopper protrusion 71 is positioned inside the pressure plate 5 and can press against the inner sidewall of the pressure plate 5. When the adjusting member 7 is withdrawn and moves upward, the stopper protrusion 71 presses against the inner sidewall of the pressure plate 5, driving the pressure plate 5 upward. When the adjusting member 7 moves downward, it presses against the pressure plate 5, causing it to move toward the terminal block 1, thereby compressing the wires.

[0056] like Figure 2 and Figure 8 As shown, support arms 52 are provided on opposite sides of the other end of the pressure plate 5. These arms 52 extend toward the wiring frame 2 and can rest against the wiring frame 2. These arms 52 limit the distance the pressure plate 5 can move toward the wiring board 1, preventing damage to the wires caused by continued movement of the pressure plate 5 while compressing the wires. Optionally, the support arms 52 and the pressure plate 5 are integrally formed, and the support arms 52 are bent so that they form an angle with the pressure plate 5, reducing the number of components and facilitating manufacturing.

[0057] The upper guard plate 6 is slidably connected to the pressing plate 5. Optionally, as Figure 6 、 Figure 8 and Figure 9 As shown, sliders 53 are protruded on two opposite sides of the middle of the pressure plate 5, a positioning hole 54 is provided in the middle of the pressure plate 5, and a slide groove 61 and a positioning block 62 are provided on one side of the upper guard plate 6. The slider 53 is slidably set in the slide groove 61, and the positioning block 62 is engaged in the positioning hole 54. During assembly, the slider 53 is placed in the slide groove 61. During the sliding assembly of the upper guard plate 6 and the pressure plate 5, the positioning block 62 is engaged in the positioning hole 54. Optionally, two slides 65 are provided on one side of the upper guard plate 6. The two slides 65 are provided with slide grooves 61 on opposite sides. The upper guard plate 6 is slidably connected to the pressure plate 5 from top to bottom. Therefore, the lower end of the slide groove 61 is provided with an opening, and the slider 53 slides into the slide groove 61 from the opening. The lower surface of the positioning block 62 is a guiding slope. After the slider 53 slides into place in the slide groove 61, the positioning block 62 is engaged in the positioning hole 54.

[0058] In some embodiments, see Figure 2 and Figure 9 As shown, the upper guard plate 6 is an L-shaped structure, and the upper guard plate 6 includes a vertical plate 63 and a horizontal plate 64. The vertical plate 63 of the upper guard plate 6 is connected to the middle part of the pressure plate 5, and the horizontal plate 64 of the upper guard plate 6 is arranged to protrude outside the wiring port 101. When wiring, the operator can move the horizontal plate 64 of the upper guard plate 6 to drive the adjustment member 7, the wiring frame 2 and the pressure plate 5 to move, and cooperate with the wiring board 1 to adjust the size of the first wiring hole 21 and the second wiring hole 22 to facilitate the connection of wires with different cross-sections. When the horizontal plate 64 of the upper guard plate 6 is released, the wiring frame 2 is reset, and the first wiring hole 21 and the second wiring hole 22 are restored to the initial design size.

[0059] Optionally, positioning arms 66 are provided on opposite sides of the vertical plate 63 of the upper guard plate 6. The positioning arms 66 are used to be slidably connected to the outer shell 100. When the upper guard plate 6 is moved by an external force, the positioning arms 66 play a guiding role.

[0060] See also Figure 1 、 Figure 2 and Figure 10As shown, the wiring frame 2 is elastically connected to the housing 100, and an elastic force is applied to the wiring frame 2 to reset the wiring frame 2, and the second wiring hole 22 is restored to its initial design size. Optionally, the lower guard plate 4 includes a lower guard plate body 41 and an elastic member 42, one end of the elastic member 42 is connected to the lower guard plate body 41, and the other end of the elastic member 42 is used to connect to the housing 100. A card slot 411 is provided on one side of the lower guard plate body 41, and a card block 23 is provided on the end face of the wiring frame 2. The card block 23 is engaged in the card slot 411. The lower guard plate body 41 covers the end face of the wiring frame 2, and the lower guard plate body 41 can also block the gap between the outer side of the wiring frame 2 and the wiring port 101, preventing the user from mistakenly connecting the external wire between the outer wall of the wiring frame 2 and the inner wall of the wiring port 101. The lower guard plate 4 connected to the wiring frame 2 moves together with the wiring frame 2, which can play an isolation and insulation role. Applying an external force to the wiring frame 2 can adjust the position of the wiring frame 2 . When no external force is applied to the wiring frame 2 , the wiring frame 2 is reset under the action of the elastic member 42 .

[0061] Optionally, the elastic member 42 includes two symmetrically arranged elastic arms, and the elastic arms are V-shaped or W-shaped structures, which are not specifically limited here. When an external force is applied to the wiring frame 2, causing the second wiring hole 22 to become larger and the first wiring hole 21 to become smaller, the elastic arm is compressed. When no external force is applied to the wiring frame 2, the elastic arm resets and drives the wiring frame 2 to reset, and the first wiring hole 21 and the second wiring hole 22 return to their initial design sizes, and the elastic member 42 keeps the second wiring hole 22 at its initial design size. During the actual wiring process, the position of the wiring frame 2 is adjusted to enlarge the second wiring hole 22, and a wire is placed in the second wiring hole 22. Then, the wiring frame 2 is reset, and the elastic member 42 applies force to the wiring frame 2, which can clamp the wire in the second wiring hole 22. When placing a wire in the first wiring hole 21, the wire in the first wiring hole 21 is clamped by adjusting the position of the pressure plate 5.

[0062] The side of the pressure plate 5 opposite to the terminal block 1, both sides of the terminal block 1, and the side of the terminal frame 2 opposite to the terminal block 1 are all provided with strip-shaped grooves or ridges to increase the friction between the wires and prevent the wires from loosening.

[0063] Obviously, the above-described embodiments of the present invention are merely examples for the purpose of clearly illustrating the present invention and are not intended to limit the manner in which the present invention is to be implemented. A person skilled in the art would be able to make various obvious changes, readjustments, and substitutions without departing from the scope of protection of the present invention. It is not necessary and impossible to enumerate all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the claims of the present invention.

Claims

1. A terminal block for a circuit breaker, wherein the circuit breaker comprises a housing (100) having a wiring port (101) provided thereon, wherein: The wiring terminal comprises: A terminal block (1), the terminal block (1) being disposed in the housing (100); A wiring frame (2) is arranged in the housing (100), one end of the wiring board (1) is placed in the middle of the wiring frame (2), the wiring board (1) divides the wiring frame (2) into a first wiring hole (21) and a second wiring hole (22), a middle protective plate (3) is provided on the side of the wiring board (1) facing the wiring port (101), and a lower protective plate (4) is provided on the side of the wiring frame (2) facing the wiring port (101); A pressure plate (5) is movably connected to the wiring frame (2), the pressure plate (5) is placed in the first wiring hole (21), and an upper guard plate (6) is provided on the side of the pressure plate (5) facing the wiring port (101); An adjusting member (7), one end of which passes through the wiring frame (2) and is connected to the pressing plate (5), the adjusting member (7) is screwed to the wiring frame (2), and the adjusting member (7) can drive the pressing plate (5) to move toward the wiring board (1).

2. The terminal block according to claim 1, wherein: One end of the terminal block (1) is connected to a snap-in plate (11), the snap-in plate (11) is placed outside the terminal frame (2), and both ends of the snap-in plate (11) abut against the end surface of the terminal frame (2); the middle guard plate (3) comprises a middle guard plate body (31) and snap-in grooves (32) provided at both ends of the middle guard plate body (31); the snap-in grooves (32) are snap-connected to the snap-in plate (11), and the middle guard plate body (31) is in contact with the end surface of the terminal block (1).

3. The terminal block according to claim 2, wherein: Two clamping blocks (33) are respectively protruded from both ends of the middle guard plate body (31), the two clamping blocks (33) are arranged at intervals, and the clamping groove (32) is formed between the two clamping blocks (33).

4. The terminal block according to claim 1, wherein: The pressing plate (5) is a U-shaped structure, one end of the pressing plate (5) is placed in the first wiring hole (21), the adjusting member (7) passes through the other end of the pressing plate (5) and the wiring frame (2) and abuts against one end of the pressing plate (5), the middle of the pressing plate (5) faces the wiring port (101), and the upper guard plate (6) is placed in the middle of the pressing plate (5) on the outside of the wiring port (101).

5. The connection terminal according to claim 4, characterized in that: The other end of the pressure plate (5) is provided with a U-shaped groove (51), the adjusting member (7) comprises a head and a rod, a limiting protrusion (71) is provided circumferentially at a position where the rod is connected to the head, the head passes through the U-shaped groove (51), the limiting protrusion (71) is placed on the inner side of the pressure plate (5) and can abut against the inner side wall of the pressure plate (5); and / or Support arms (52) are respectively provided on two opposite sides of the other end of the pressing plate (5), and the support arms (52) respectively extend toward the wiring frame (2), and the support arms (52) can abut against the wiring frame (2).

6. The connection terminal according to claim 4, characterized in that: Slide blocks (53) are respectively provided on two opposite sides of the middle of the pressure plate (5), a positioning hole (54) is provided in the middle of the pressure plate (5), a sliding groove (61) and a positioning block (62) are provided on one side of the upper guard plate (6), the slide block (53) is slidably arranged in the sliding groove (61), and the positioning block (62) is clamped in the positioning hole (54).

7. The connection terminal according to claim 4, characterized in that: The upper guard plate (6) is in an L-shaped structure, comprising a vertical plate (63) and a horizontal plate (64). The vertical plate (63) of the upper guard plate (6) is connected to the middle of the pressing plate (5), and the horizontal plate (64) of the upper guard plate (6) is arranged to protrude outside the wiring port (101).

8. The connection terminal according to claim 7, characterized in that: Positioning arms (66) are respectively provided on opposite sides of the vertical plate (63) of the upper guard plate (6), and the positioning arms (66) are used for sliding connection with the housing (100).

9. The connection terminal according to claim 1, characterized in that: The lower guard plate (4) comprises a lower guard plate body (41) and an elastic member (42), one end of the elastic member (42) is connected to the lower guard plate body (41), and the other end of the elastic member (42) is used to connect to the housing (100), a card slot (411) is provided on one side of the lower guard plate body (41), and a card block (23) is provided on the end surface of the wiring frame (2), and the card block (23) is carded in the card slot (411).

10. A circuit breaker, characterized in that The invention comprises the connecting terminal according to any one of claims 1 to 9.

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