Connector, cascade terminal and cascade circuit breaker

Abstract

The utility model provides a connector, a cascade terminal and a cascade circuit breaker, and relates to the technical field of low-voltage electrical appliances, the connector comprises a first plate and a second plate which are connected with each other, a first contact position is formed on the first plate, a second contact position and a third contact position are formed on the second plate, and the first contact position and the third contact position are connected with each other. The second contact position is used for being electrically connected with the first contact position of the connector of the adjacent pole, and the third contact position is used for being electrically connected with the single face of a circuit board in a contact mode. A third contact position of the connector is electrically connected with a circuit board in the circuit breaker, and the third contact position and the circuit board are in contact conduction in a single-face contact mode. And the third contact position is electrically connected with the single surface of the circuit board, so that the material waste can be reduced, and the assembly process is simplified. Moreover, the second contact position and the third contact position are also located on the same plate, and the second contact position and the third contact position share the second plate, so that the assembly convenience is further improved, and the material occupation is reduced.

Description

Technical Field

[0001] The present application relates to the technical field of low-voltage electrical appliances, and in particular to a connector, a pole-binding terminal and a pole-binding circuit breaker. Background Art

[0002] The circuit breaker is usually electrically connected with the pole-bonding terminal. Multiple circuit breakers arranged side by side correspond to multiple pole-bonding terminals arranged side by side one by one to form a pole-bonding circuit breaker. When the pole-bonding terminal and the circuit breaker are electrically connected, the contact position at the top of the connector in the pole-bonding terminal is in contact with the circuit board of the circuit breaker to achieve electrical connection between the two.

[0003] Currently, the contact structure at the top of the connector in the pole-link terminal is relatively complex, occupies a large space, is inconvenient to assemble, and is not suitable for the needs of miniaturization of pole-link circuit breakers. Utility Model Content

[0004] The purpose of the present application is to provide a connector, a pole-link terminal and a pole-link circuit breaker to address the deficiencies in the above-mentioned prior art, which can achieve reliable electrical connection with the circuit breaker, are easy to install, and can effectively reduce material waste.

[0005] To achieve the above purpose, the technical solution adopted in the embodiment of the present application is as follows:

[0006] According to one aspect of an embodiment of the present application, a connector is provided, comprising a first plate member and a second plate member connected to each other, a first contact position being formed on the first plate member, a second contact position and a third contact position being formed on the second plate member, the second contact position being used to electrically connect to the first contact position of the connector at an adjacent pole, and the third contact position being used to electrically connect to a single-sided contact of a circuit board.

[0007] Another aspect of an embodiment of the present application provides a pole-binding terminal, including a shell and the above-mentioned connector, wherein the connector is arranged in the shell to be electrically connected to the adjacent pole-binding terminal.

[0008] According to another aspect of the embodiments of the present application, a pole-bonding circuit breaker is provided, comprising a plurality of circuit breakers arranged side by side, and a plurality of the above-mentioned pole-bonding terminals, wherein the pole-bonding terminals are electrically connected to the circuit boards of the circuit breakers through the third contact positions of the connector.

[0009] The beneficial effects of this application include:

[0010] The present application provides a connector, a pole-link terminal, and a pole-link circuit breaker, which are electrically connected to a circuit board in a circuit breaker through a third contact position of the connector, and the third contact position and the circuit board are contacted and conducted by a single-sided contact. The single-sided electrical connection between the third contact position and the circuit board can reduce material waste and simplify the assembly process. In addition, the second contact position and the third contact position are also located on the same plate, and the second contact position and the third contact position share the second plate, which further improves the convenience of assembly and reduces material occupation. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0012] Figure 1 One of the structural schematic diagrams of the first embodiment of the connector provided in the embodiment of the present application;

[0013] Figure 2 A second structural diagram of the first connector embodiment provided in the embodiment of the present application;

[0014] Figure 3 One of the structural schematic diagrams of the second connector embodiment provided in the embodiment of the present application;

[0015] Figure 4 A second structural diagram of the second connector embodiment provided in the embodiment of the present application;

[0016] Figure 5 A schematic diagram of the structure of the pole-connecting terminal provided in an embodiment of the present application;

[0017] Figure 6 A schematic diagram of the exploded structure of the pole-connecting terminal provided in an embodiment of the present application;

[0018] Figure 7 A schematic diagram of the matching of the pole connection terminal and the circuit board provided in the embodiment of the present application;

[0019] Figure 8 A connection diagram of a multi-pole terminal provided in an embodiment of the present application;

[0020] Fig. 9 One of the structural schematic diagrams of the pole-connected circuit breaker provided in the embodiment of the present application;

[0021] Fig.10 The second structural schematic diagram of the pole-connected circuit breaker provided in the embodiment of the present application;

[0022] Fig.11 The third structural diagram of the pole-connected circuit breaker provided in the embodiment of the present application;

[0023] Fig.12 for Fig.11 Enlarged view of point A in the middle.

[0024] Icons: 10-connector; 11-first plate; 11a-first contact position; 110-pin; 111-first contact plate; 1101-first groove; 1101a-outer groove surface; 112-connecting plate; 12-second plate; 120-second contact plate; 1201-first connecting area; 1202-first contact area; 1202a-first contact surface; 1202b-first guide surface; 121-third contact plate; 1211-bending area; 1211a -second groove; 1211b-groove surface; 13-third plate; 130-second connection area; 131-second contact area; 131a-second contact surface; 131b-second guide surface; 20-pole terminal; 20a-shell; 21-first shell; 22-second shell; 220-protrusion; 226-gap groove; 30-circuit breaker; 31-circuit board; 310-contact; F1-first direction; F2-second direction; F3-third direction; a-angle. DETAILED DESCRIPTION

[0025] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. The components of the embodiments of the present application described and shown in the drawings here can be arranged and designed in various different configurations.

[0026] Therefore, the following detailed description of the embodiments of the present application provided in the accompanying drawings is not intended to limit the scope of the present application for protection, but merely represents selected embodiments of the present application. It should be noted that, in the absence of conflict, the various features in the embodiments of the present application can be combined with each other, and the combined embodiments are still within the scope of protection of the present application.

[0027] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0028] In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, or the positions or positional relationships in which the product of the application is usually placed when in use. They are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first", "second", "third", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0029] In addition, the terms "horizontal", "vertical" and the like do not mean that the components are required to be absolutely horizontal or suspended, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0030] In the description of this application, it should also be noted that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0031] In one aspect of the embodiment of the present application, referring to Figure 1 , Figure 2 , a connector 10 is provided, including a first plate 11 and a second plate 12 connected to each other, a first contact position 11a is formed on the first plate 11, a second contact position 12a and a third contact position 12b are formed on the second plate 12, the second contact position 12a is used to electrically connect to the first contact position 11a of an adjacent single-pole connector 10, and the third contact position 12b is used to electrically connect to a single side of a circuit board.

[0032] The connector 10 is mainly used in the pole-bonding terminal 20. The connector 10 is arranged in the shell 20a of the pole-bonding terminal 20, and the connector 10 and the shell 20a are insulated and isolated; the pole-bonding terminal 20 is electrically connected by extrusion contact through the third contact position 12b of the connector 10 and the circuit board 31 of the circuit breaker 30.

[0033] Specifically, the connector 10 has a first contact position 11 a , a second contact position 12 a and a third contact position 12 b . By way of example, in the present application, the first contact position 11 a , the second contact position 12 a and the third contact position 12 b form a T-shaped distribution.

[0034] When used for connecting a multi-pole pole-binding terminal 20, the first contact position 11a of one connector 10 contacts the second contact position 12a of the adjacent connector 10 to achieve electrical connection, thereby realizing sequential electrical connection of multiple connectors 10; in this way, the connector 10 does not need to cooperate with the housing 20a of the pole-binding terminal 20, and the multi-pole connector 10 can be used for electrical connection of the multi-pole pole-binding terminal 20.

[0035] When the pole-bonding terminal 20 is connected to the circuit breaker 30, the third contact position 12b of the connector 10 is electrically connected to the circuit board 31 in the circuit breaker 30, and the third contact position 12b and the circuit board 31 are in contact and conduction through a single-sided contact. The single-sided electrical connection between the third contact position 12b and the circuit board 31 can reduce material waste and simplify the assembly process.

[0036] Furthermore, the second contact position 12a and the third contact position 12b are also located on the same plate. The second contact position 12a and the third contact position 12b share the second plate 12, which further improves the convenience of assembly and reduces material occupation.

[0037] Specifically, the first board 11 includes a pin 110 and a first contact plate 111 connected along a first direction F1. The first contact position 11a is formed on the pin 110. The pin 110 is used to electrically connect to the adjacent connector 10. The first contact plate 111 is used to achieve structural connection with the second board 12.

[0038] For the second plate member 12, it includes a second contact plate 120 and a third contact plate 121 which are arranged at an angle a. For example, the second contact plate 120 is arranged along the first direction F1, and the third contact plate 121 is basically arranged along the third direction F3. The angle a between the two is approximately 90 degrees, so that the second plate member 12 forms an L-shaped structure; the second contact position 12a is formed on the second contact plate 120, and the third contact position 12b is formed on the third contact plate 121. The third contact plate 121 is a spring structure, and the plate surface of the second contact plate 120 is arranged toward the third direction F3, and the plate surface of the third contact plate 121 is arranged toward the first direction F1.

[0039] It can be seen that the plate surfaces of the first contact plate 111, the second contact plate 120 and the third contact plate 121 are perpendicular to each other, the side of the first contact plate 111 along the third direction F3 is connected to the side of the second contact plate 120 along the second direction F2, and the second contact plate 120 and the third contact plate 121 are connected to form an integrated L-shaped structure through their respective sides in the second direction F2.

[0040] Furthermore, the second contact plate 120 includes a first connection area 1201 and a first contact area 1202 connected to each other along the first direction F1. The first connection area 1201 and the first contact plate 111 are bent and connected to realize the connection between the first plate 11 and the second plate 12. The first contact area 1202 is used to provide a second contact position 12a. The first contact area 1202 is bent in a direction away from the third contact position 12b. Figure 1 The third contact position 12b is located at the top, so the first contact area 1202 is bent downward, and after bending, the first contact area 1202 forms a first contact surface 1202a on the side away from the third contact position 12b. The second contact position 12a is formed on the first contact surface 1202a, and the first contact surface 1202a contacts the outer groove surface 1101a of the first groove 1101 of the adjacent connector 10 pin 110 to achieve electrical contact connection between the first contact position 11a and the second contact position 12a of the adjacent connector 10.

[0041] The third contact plate 121 is bent toward the first direction F1 to form a bending area 1211. The bending area 1211 forms a second groove 1211a on one side facing the first contact position 11a. The third contact position 12b is formed on a groove surface 1211b of the second groove 1211a facing the second contact position 12a.

[0042] The third contact plate 121 is also bent, and the bending area 1211 protrudes in the first direction F1. The third contact position 12b is on a convex side surface of the bending area 1211, and a second groove 1211a is formed on a concave side surface of the bending area 1211 to increase the deformation amount. This makes it easy to ensure the contact amount and contact pressure between the third contact position 12b and the circuit board when they are in single-sided contact, thereby forming a reliable electrical connection.

[0043] Please refer to Figure 1 The surface of the first contact plate 111 faces the second direction F2, and the first groove 1101 is arranged on the plug pin 110 along the second direction F2. In other words, the surface of the first contact plate 111 and the notch direction of the first groove 1101 are in the same direction; for example, the first groove 1101 is a U-shaped groove, and the cross section of the plug pin 110 along the second direction F2 forms a U-shaped groove; the first groove 1101 extends along the first direction F1, and the first groove 1101 crosses the entire plug pin 110 along the first direction F1, so that the plug pin 110 forms a long strip structure and is inserted into the adjacent pole terminal 20.

[0044] Furthermore, the first contact position 11a is formed on the outer groove surface 1101a of the first groove 1101 along the third direction F3, and the outer groove surface 1101a of the first groove 1101 is in electrical contact with the second contact position 12a of the adjacent connector 10. The first direction F1, the second direction F2 and the third direction F3 are perpendicular to each other.

[0045] In addition, the first plate 11 also includes a connecting plate 112, and the pin 110 and the first contact plate 111 are staggered along the second direction F2, that is, the pin 110 and the first contact plate 111 are not arranged in the same plane, and the pin 110 and the first contact plate 111 are connected by the connecting plate 112 to form an integral first plate 11.

[0046] Since the connecting plate 112 needs to connect the plug pin 110 and the first contact plate 111, transition structures adapted to the plug pin 110 and the first contact plate 111 are formed at both ends of the connecting plate 112, so that the connection from the plug pin 110 to the first contact plate 111 can be smoothly and firmly transitioned.

[0047] Figure 1 In the figure, a first guide surface 1202b is formed on the side of the first contact area 1202 away from the third contact position 12b, and the first guide surface 1202b is connected to the first contact surface 1202a to guide the first contact position 11a of the connector 10 of the adjacent pole to enter, so that the first contact surface 1202a is in single-sided contact with the first contact position 11a of the connector 10 of the adjacent pole.

[0048] The first guide surface 1202b extends toward the third contact position 12b, and the extension direction of the first guide surface 1202b is opposite to the direction of the first contact surface 1202a, so that the pin 110 of the adjacent connector 10 can be quickly inserted into the connector 10 through the first guide surface 1202b, and then contact and electrically connect with the first contact surface 1202a of the connector 10.

[0049] In the above embodiment, the first plate 11 and the second plate 12 are provided, and the connection of the multi-pole connector 10 and the connection of the pole-binding terminal 20 formed by the connector 10 and the circuit breaker 30 are realized through the first contact position 11a, the second contact position 12a and the third contact position 12b.

[0050] In other embodiments, Figure 3 , Figure 4 As shown, the connector 10 also includes a third plate 13, which is arranged on one side of the second plate 12 along the third direction F3, with the plate surface of the third plate 13 facing the third direction F3. A clamping area is formed between the third plate 13 and the second plate 12 for clamping the first contact position 11a of the adjacent connector 10.

[0051] The third plate 13 has the same structure as the second contact plate 120 in the second plate 12, and the two are arranged relative to each other to facilitate clamping the first plate 11, thereby realizing the connection between the first plate 11 and the second plate 12; at the same time, the clamping area can also clamp the pin 110 of the adjacent connector 10, so that the first contact position 11a on the pin 110 and the second contact position 12a located in the clamping area are clamped and contacted, thereby realizing the electrical connection of the adjacent connectors 10, which can make the connection between the adjacent connectors 10 more stable and reliable.

[0052] Specifically, the third plate 13 has a second connection area 130 and a second contact area 131 connected to each other along the first direction F1, the second connection area 130 is opposite to the first connection area 1201 of the second plate 12, and the second contact area 131 is opposite to the first contact area 1202 of the second plate 12; the second connection area 130 is connected to the first contact plate 111, and the first connection area 1201 and the second connection area 130 clamp the first contact plate 111 in the clamping area.

[0053] The second contact area 131 is bent toward the first contact area 1202, and the first contact area 1202 is bent toward the second contact area 131. The second contact area 131 forms a second contact surface 131a on the side facing the first contact area 1202. The second contact surface 131a and the first contact surface 1202a are arranged opposite to each other, and the first contact position 11a is formed between the first contact surface 1202a and the second contact surface 131a. Due to the bent setting, a narrow channel is formed between the first contact surface 1202a and the second contact surface 131a to tightly clamp the first contact position 11a of the adjacent connector 10 so as to reliably contact the adjacent connector 10.

[0054] Similarly, a second guide surface 131b is formed on the side of the second contact area 131 of the third plate 13 facing the first contact area 1202, and the second guide surface 131b is connected to the second contact surface 131a. The second guide surface 131b is arranged opposite to the first guide surface 1202b, and the second guide surface 131b extends in a direction away from the third contact position 12b. In this way, a guide area with an opening facing away from the first contact position 11a is formed between the first guide surface 1202b and the second guide surface 131b, and the opening of the guide area gradually decreases from the end away from the first contact position 11a to the end close to the first contact position 11a, so as to facilitate the adjacent first contact position 11a to be introduced into the guide area until it contacts the second contact position 12a.

[0055] On this basis, refer to Figure 5 , Figure 6 The embodiment of the present application further provides a pole-binding terminal 20, which includes a shell 20a and the above-mentioned connector 10, and the connector 10 is arranged in the shell 20a to be electrically connected to the adjacent pole-binding terminal 20 in the first direction F1.

[0056] For example, multiple connectors 10 are arranged side by side along the second direction F2 in the pole terminal 20, and a contact 310 is formed on the side of the circuit board 31 facing the third contact position 12b to contact and conduct with the third contact position 12b. The third contact positions 12b of the multiple connectors 10 can match the multiple contacts 310 along the second direction F2 on the same circuit board 31, and the third contact positions 12b and the contacts 310 correspond one to one.

[0057] Figure 7 In the figure, contacts 310 can be set on both the front and back sides of the circuit board 31 along the first direction F1 to achieve the function that both sides of the circuit board 31 can contact the third contact position 12b. When set in this way, no matter whether the circuit board 31 is installed forwardly or reversely, it can cooperate with the third contact position 12b to achieve electrical connection, so as to avoid the situation where the other side has no contact 310 and cannot be conductive due to the reverse installation of the circuit board 31.

[0058] The third contact position 12b is arranged at the top layer of the shell 20a, and the third contact position 12b and the circuit board 31 realize single-sided contact. The third contact position 12b is a single-sided contact structure, which simplifies the structure of the connector 10 and reduces the volume of the connector 10; when the connector 10 and the shell 20a are adapted, the occupied space of the top layer of the shell 20a is also correspondingly reduced.

[0059] Furthermore, the shell 20a includes a first shell 21 and a second shell 22, the first shell 21 is inserted into the second shell 22, the third contact position 12b is adapted to the second shell 22, and a protrusion 220 along the third direction F3 is formed on the second shell 22, and a make way groove 226 is formed on the protrusion 220 to accommodate the third contact position 12b of the connector 10.

[0060] The connector 10 is disposed in the second housing 22, the first contact position 11a of the connector 10 is located in the second housing 22, one end of the first housing 21 of the adjacent pole-connecting terminal 20 extends into the second housing 22 to match the first contact position 11a; the second contact position 12a of the connector 10 extends out of the second housing 22, and one end of the first housing 21 facing the second contact position 12a extends into the second housing 22 to match the second contact position 12a; thus, the Figure 8 The electrical connection of the multi-pole terminal 20 is shown.

[0061] The second housing 22 is used to accommodate the connector 10 , and the first housing 21 is used as a plug-in matching structure to achieve sequential connection of adjacent pole terminals 20 .

[0062] On the other hand, referring to Fig. 9 , Fig.10As shown, an embodiment of the present application further provides a pole-bonding circuit breaker, comprising a plurality of circuit breakers 30 arranged side by side, and a plurality of the above-mentioned pole-bonding terminals 20 , wherein the pole-bonding terminals 20 are electrically connected to the circuit board 31 of the circuit breaker 30 through the third contact position 12 b of the connector 10 .

[0063] Fig.11 , Fig.12 The diagram shows an example of four circuit breakers 30 and four pole-binding terminals 20 being connected in sequence. Each pole-binding terminal 20 is electrically connected to a circuit board 31 in the circuit breaker 30 through its third contact position 12 b, thereby completing the conduction of the pole-binding circuit breaker 30 .

[0064] The pole-binding terminal 20 and the pole-binding circuit breaker have the same structure and beneficial effects as the connector 10 in the aforementioned embodiment. The structure and beneficial effects of the connector 10 have been described in detail in the aforementioned embodiment and will not be repeated here.

[0065] The above description is only the preferred embodiment of the present application and is not intended to limit the present application. For those skilled in the art, the present application may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A connector, characterized in that: The invention comprises a first plate member (11) and a second plate member (12) which are connected to each other, wherein a first contact position (11a) is formed on the first plate member (11), and a second contact position (12a) and a third contact position (12b) are formed on the second plate member (12), wherein the second contact position (12a) is used for electrically connecting to the first contact position (11a) of the connector (10) at an adjacent pole, and the third contact position (12b) is used for single-sided electrical connection with a circuit board (31) of a circuit breaker (30).

2. The connector according to claim 1, characterized in that: The first plate (11) comprises a plug pin (110) and a first contact plate (111) connected to each other along a first direction (F1), and the first contact position (11a) is formed on the plug pin (110); The second plate member (12) comprises a second contact plate (120) and a third contact plate (121) which are arranged at an angle (a); the second contact position (12a) is formed on the second contact plate (120); and the third contact position (12b) is formed on the third contact plate (121).

3. The connector according to claim 2, characterized in that: The second contact plate (120) comprises a first connection area (1201) and a first contact area (1202) which are connected to each other along the first direction (F1); the first connection area (1201) and the first contact plate (111) are connected by bending; the first contact area (1202) is bent in a direction away from the third contact position (12b); a first contact surface (1202a) is formed on a side of the first contact area (1202) away from the third contact position (12b); and the second contact position (12a) is formed on the first contact surface (1202a).

4. The connector according to claim 2, characterized in that: The third contact plate (121) is bent toward the first direction (F1) to form a bending area (1211), a second groove (1211a) is formed on a side of the bending area (1211) facing the first contact position (11a), and the third contact position (12b) is formed on a groove surface (1211b) on a side of the second groove (1211a) facing the second contact position (12a).

5. The connector according to claim 2, characterized in that: A first groove (1101) is provided on the plug pin (110) along the second direction (F2), the first groove (1101) extends along the first direction (F1), the first contact position (11a) is formed on an outer groove surface (1101a) of the first groove (1101) along a third direction (F3), and the first direction (F1), the second direction (F2) and the third direction (F3) are perpendicular to each other.

6. The connector according to claim 2, characterized in that: The first plate (11) further comprises a connecting plate (112), the plug pin (110) and the first contact plate (111) are staggered along a second direction (F2), and the plug pin (110) and the first contact plate (111) are connected via the connecting plate (112).

7. The connector according to claim 3, characterized in that: A first guide surface (1202b) is also formed on the side of the first contact area (1202) away from the third contact position (12b), and the first guide surface (1202b) is connected to the first contact surface (1202a). The first guide surface (1202b) extends in the direction of the third contact position (12b) to guide the first contact position (11a) of the adjacent connector (10) to enter, so that the first contact surface (1202a) is in single-sided contact with the first contact position (11a) of the adjacent connector (10).

8. The connector according to any one of claims 1 to 7, characterized in that: It also includes a third plate (13), which is arranged relatively to one side of the second plate (12) along a third direction (F3), and a clamping area is formed between the third plate (13) and the second plate (12) for clamping the first contact position (11a) of the adjacent connector (10).

9. A pole-connecting terminal, characterized in that: It comprises a housing (20a) and the connector (10) according to any one of claims 1 to 8, wherein the connector (10) is arranged in the housing (20a) for being electrically connected to the adjacent pole-binding terminal (20).

10. A pole-connected circuit breaker, characterized in that: It comprises a plurality of circuit breakers (30) arranged side by side, and a plurality of pole-binding terminals (20) as claimed in claim 9, wherein the pole-binding terminals (20) are electrically connected to the circuit board (31) of the circuit breaker (30) through the third contact position (12b) of the connector (10).

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