Double-alarm electrical accessory for circuit breaker

Abstract

The utility model discloses a double alarm electrical accessory used for a circuit breaker, comprising a housing, a handle assembly, a touch block and a swing block are respectively rotatably arranged in the housing, the swing block is connected with the housing through a torsion spring, the swing block is connected with the handle assembly through a connecting rod, one side of the swing block is rotatably provided with a jump pin, and the other side of the swing block is rotatably provided with a spring. The swing block is connected with a locking block corresponding to the jump pin. According to the utility model, two alarm indication circuits can be connected at the same time, the installation occupation volume of an environment requiring two alarm electrical accessory circuits is effectively reduced, dual alarm indication can be provided on the premise of not increasing extra space, installation and wiring are simplified, the safety of a circuit connection environment is improved to a certain extent, and the cost is reduced. The requirement of double alarm is met, and the structure of a circuit system is kept compact and neat.

Description

Technical Field

[0001] The utility model belongs to the technical field of circuit breaker accessories, and in particular relates to a double-alarm electrical accessory for a circuit breaker. Background Art

[0002] As an indispensable part of the electrical system, circuit breaker electrical accessories not only enhance the function of the circuit breaker, but also improve the safety and availability of the entire electrical system. As a key component of this type of accessories, the circuit breaker alarm electrical accessories are mainly responsible for issuing sound and light alarms in time when the circuit breaker trips due to overload, short circuit or other faults, so as to quickly attract the attention of operators and take timely measures to avoid potential electrical fires or equipment damage.

[0003] Nowadays, in many circuit environments, due to the needs of circuit electrical appliances, two circuit breaker alarm electrical accessories are required to indicate. The traditional method is to install two circuit breaker alarm electrical accessories in parallel. There are some disadvantages in practical applications, such as:

[0004] 1. Installing two circuit breaker alarm accessories in parallel will undoubtedly increase the lateral space requirements of the distribution cabinet or control panel, which is an important issue for application scenarios where space is limited or optimized layout is crucial;

[0005] 2. Each additional accessory requires additional wiring work, which not only increases installation cost and time, but also increases the risk of wiring errors, resulting in reduced system reliability. The complex wiring layout also threatens the safe and stable operation of the circuit. Utility Model Content

[0006] The purpose of the utility model is to provide a dual alarm electrical accessory for a circuit breaker to solve the problems raised in the above background technology. The utility model provides a dual alarm electrical accessory for a circuit breaker, which has the characteristics of providing dual alarm indication without adding extra space, simplifying installation and wiring, and improving the safety of the circuit connection environment to a certain extent.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a dual alarm electrical accessory for a circuit breaker, comprising a shell, a cover plate connected to the side of the shell, a handle assembly, a trigger block and a swing block respectively rotating in the shell, wherein the swing block is arranged on one side of the handle assembly, the swing block and the shell are also connected by a torsion spring, and the swing block and the handle assembly are connected by a connecting rod, a trip button is rotated on one side of the swing block, and a lock block corresponding to the trip button is connected to the swing block, the trigger block is arranged above the swing block, and the swing block is provided with an abutment block corresponding to the side of the trigger block, and the trigger block is also connected to the shell by a tension spring; further comprising a first wiring terminal, a second wiring terminal, a third wiring terminal, a fourth wiring terminal, a fifth wiring terminal and a sixth wiring terminal, wherein the first wiring terminal, the second wiring terminal and the third wiring terminal are arranged on one side of the shell, and the fourth wiring terminal, the fifth wiring terminal and the sixth wiring terminal are arranged on the other side of the shell; further comprising two switching modules, one switching module is connected to the first wiring terminal, the second wiring terminal and the third wiring terminal, and the other switching module is connected to the fourth wiring terminal, the fifth wiring terminal and the sixth wiring terminal.

[0008] In order to realize the test function, the handle assembly further comprises a handle block, wherein the handle block is sleeved on the first shaft rod on the shell, a dial handle is connected to the side surface of the handle block, and a linkage pin is connected to the dial handle.

[0009] In order to be linked with the circuit breaker, further, a guide round block is provided on the circumference of the handle block, and a guide block corresponding to the guide round block is provided on the trigger block. A linkage shaft is connected to the jump buckle.

[0010] Furthermore, the switching module is a micro switch and / or a spring assembly.

[0011] In order to switch the conduction state of the alarm indication circuit, further, the contact arm of the microswitch is arranged corresponding to the end of the touch block, and the common contact pin, the first contact pin and the second contact pin of the microswitch are respectively connected to the first terminal, the second terminal and the third terminal or the fourth terminal, the fifth terminal and the sixth terminal.

[0012] In order to switch the conduction state of the alarm indication circuit, further, the spring assembly includes a first conductive block, a second conductive block and a conductive spring, wherein the first conductive block and the second conductive block are arranged relatively to each other, the first conductive block is connected to the third terminal or the fourth terminal, the second conductive block is connected to the second terminal or the fifth terminal, one end of the conductive spring is connected to the first terminal or the sixth terminal, and the other end of the conductive spring is located between the first conductive block and the second conductive block.

[0013] In order to ensure the tightness of the contact between the conductive spring and the first conductive block or the second conductive block, thereby avoiding poor contact, further, a conductive screw is connected to one end of the conductive spring located between the first conductive block and the second conductive block.

[0014] In order to improve the stability and safety of the electrical connection, further, a slot is provided on the trigger block, and the slot is clamped on the outer side of the conductive spring.

[0015] In the present invention, the method for implementing a dual alarm electrical accessory for a circuit breaker comprises the following steps:

[0016] (1) Connect the alarm indication circuit 1 to the first wiring terminal, the second wiring terminal and the third wiring terminal, and connect the alarm indication circuit 2 to the fourth wiring terminal, the fifth wiring terminal and the sixth wiring terminal;

[0017] (ii) When the circuit breaker is closed, the handle assembly drives the swing block to rotate clockwise to the set position through the connecting rod, the tripping buckle is locked with the locking block, the swing block pushes the touch block to rotate clockwise to the set position through the abutment block, and the touch block pushes the conductive spring to abut against the first conductive block. At this time, the fourth terminal and the sixth terminal are in a conducting state; the touch block is separated from the contact arm of the micro switch, and the common contact pin of the micro switch is connected to the second contact pin. At this time, the first terminal and the third terminal are in a conducting state;

[0018] (III) When a circuit breaker fails and an alarm is required, the trip button is forced to rotate and separate from the lock block, the swing block is reset counterclockwise to the set position under the action of the torsion spring, the abutment block is separated from the touch block, and the touch block is reset counterclockwise to the set position under the action of the tension spring. The touch block drives the conductive spring to abut against the second conductive block. At this time, the fifth terminal and the sixth terminal are in a conducting state; the touch block abuts against the contact arm of the micro switch, and the common contact pin of the micro switch is connected to the first contact pin. At this time, the first terminal and the second terminal are in a conducting state, and the alarm indication circuit 1 and the alarm indication circuit 2 are connected;

[0019] (IV) After the fault is eliminated, close the circuit breaker and switch it to the state described in step (II).

[0020] Compared with the prior art, the beneficial effects of the utility model are:

[0021] 1. The utility model can connect two alarm indication circuits at the same time, effectively reducing the installation volume of the circuit environment requiring two alarm electrical accessories, providing dual alarm indication without adding extra space, simplifying installation and wiring, and improving the safety of the circuit connection environment to a certain extent, which not only meets the needs of dual alarms, but also keeps the circuit system structure compact and neat;

[0022] 2. The utility model is provided with a swing block. When the circuit breaker is closed, the swing block pushes the touch block to move, and after the closing is completed, the touch block is limited, thereby ensuring the stability of the touch block and reducing the failure rate;

[0023] 3. The utility model has a guide round block on the circumference of the handle block, and a guide block corresponding to the guide round block is provided on the touch block. When the handle assembly is rotated, the guide round block cooperates with the guide block to realize the rotation of the touch block, thereby realizing the test function;

[0024] 4. The utility model can realize the switching of the conduction state of the circuit through a micro switch or a spring assembly. The micro switch has the characteristics of high sensitivity and long life, and the spring assembly has the characteristics of good stability and low cost, which increases the diversity of the circuit breaker alarm electrical accessories;

[0025] 5. A conductive screw is connected to one end of the conductive spring sheet located between the first conductive block and the second conductive block of the utility model to ensure the tightness of the contact between the conductive spring sheet and the first conductive block or the second conductive block, thereby avoiding poor contact;

[0026] 6. The trigger block of the utility model is provided with a card slot, which is stuck on the outer side of the conductive spring sheet through the card slot, pushing the conductive spring sheet to smoothly switch between the first conductive block and the second conductive block, thereby switching the conduction state of the alarm indication circuit, thereby improving the stability and safety of the electrical connection. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic diagram of the structure of the utility model;

[0028] Figure 2 This is a schematic diagram of the structure of the utility model after the cover plate is removed;

[0029] Figure 3 This is a schematic diagram of the structure of the connection between the handle assembly and the swing block of the utility model;

[0030] Figure 4 This is a schematic diagram of the structure of the handle assembly of the utility model;

[0031] Figure 5 This is a schematic diagram of the structure of the connection between the trigger block and the swing block of the utility model;

[0032] Figure 6 This is a schematic diagram of the structure of the trigger block of the utility model;

[0033] Figure 7 This is a schematic diagram of the structure of the swing block and the jump buckle connected to the utility model;

[0034] Figure 8It is a structural schematic diagram of the spring assembly of the utility model connected with the fourth wiring terminal, the fifth wiring terminal and the sixth wiring terminal;

[0035] Fig. 9 This is a schematic diagram of the structure of the micro switch of the utility model;

[0036] Fig.10 It is a structural schematic diagram of the housing of the utility model;

[0037] Fig.11 It is a structural schematic diagram of the jump buckle of the utility model;

[0038] Fig.12 It is a structural schematic diagram of the micro switch of the utility model connected with the first wiring terminal, the second wiring terminal and the third wiring terminal;

[0039] In the figure: 1. shell; 2. cover plate; 3. handle assembly; 31. handle block; 32. dial handle; 33. linkage pin; 34. guide round block; 4. connecting rod; 5. touch block; 51. tension spring; 52. slot; 53. guide block; 6. swing block; 61. abutment block; 62. lock block; 63. torsion spring; 7. jump buckle; 71. linkage shaft; 8. first wiring terminal; 9. second wiring terminal; 10. third wiring terminal; 11. micro switch; 111. contact arm; 112. common contact foot; 113. first contact foot; 114. second contact foot; 12. spring assembly; 121. first conductive block; 122. conductive screw; 123. second conductive block; 124. conductive spring; 13. fourth wiring terminal; 14. fifth wiring terminal; 15. sixth wiring terminal; 16. first shaft rod; 17. second shaft rod. DETAILED DESCRIPTION

[0040] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0041] Example 1

[0042] See also Figure 1-12The utility model provides the following technical solutions: a dual alarm electrical accessory for a circuit breaker, comprising a housing 1, a cover plate 2 connected to the side of the housing 1, a handle assembly 3, a trigger block 5 and a swing block 6 respectively rotating in the housing 1, the trigger block 5 and the swing block 6 are both sleeved on the second shaft 17, wherein the swing block 6 is arranged on one side of the handle assembly 3, the swing block 6 and the housing 1 are also connected by a torsion spring 63, and the swing block 6 and the handle assembly 3 are connected by a connecting rod 4, a jump buckle 7 is rotated on one side of the swing block 6, and a locking block 62 corresponding to the jump buckle 7 is connected to the swing block 6, the trigger block 5 is arranged above the swing block 6, and the swing block 6 is provided with an abutment block 6 corresponding to the side of the trigger block 5 1, the trigger block 5 is also connected to the housing 1 through a tension spring 51; it also includes a first terminal 8, a second terminal 9, a third terminal 10, a fourth terminal 13, a fifth terminal 14 and a sixth terminal 15, wherein the first terminal 8, the second terminal 9 and the third terminal 10 are arranged on one side of the housing 1, and the fourth terminal 13, the fifth terminal 14 and the sixth terminal 15 are arranged on the other side of the housing 1; it also includes two switching modules, one switching module is connected to the first terminal 8, the second terminal 9 and the third terminal 10, and the other switching module is connected to the fourth terminal 13, the fifth terminal 14 and the sixth terminal 15.

[0043] By adopting the above technical solution, the utility model can connect two alarm indication circuits at the same time, effectively reducing the installation volume occupied by the circuit environment of the electrical accessories requiring two alarms, and can provide dual alarm indication without increasing additional space, simplifying installation and wiring, and improving the safety of the circuit connection environment to a certain extent, which not only meets the needs of dual alarms, but also maintains the compactness and neatness of the circuit system structure; the utility model is provided with a swing block 6, and when the circuit breaker is closed, the swing block 6 pushes the touch block 5 to move, and after the closing is completed, the touch block 5 is limited, thereby ensuring the stability of the touch block 5 and reducing the failure rate.

[0044] Specifically, the handle assembly 3 includes a handle block 31, wherein the handle block 31 is sleeved on the first shaft 16 on the housing 1, a dial handle 32 is connected to the side of the handle block 31, and a linkage pin 33 is connected to the dial handle 32. A linkage shaft 71 is connected to the jump buckle 7.

[0045] By adopting the above technical solution, it is used to be linked with a circuit breaker.

[0046] Specifically, the switching module is a micro switch 11 and / or a spring assembly 12 , and the present embodiment preferably includes a micro switch 11 and a spring assembly 12 .

[0047] Example 2

[0048] The present embodiment is different from the first embodiment in that: specifically, a guide circular block 34 is provided on the circumference of the handle block 31 , and a guide block 53 corresponding to the guide circular block 34 is provided on the trigger block 5 .

[0049] By adopting the above technical solution, the handle assembly 3 is rotated, and the guide round block 34 cooperates with the guide block 53 to realize the rotation of the trigger block 5, thereby realizing the test function.

[0050] Example 3

[0051] Specifically, the contact arm 111 of the micro switch 11 is arranged corresponding to the end of the trigger block 5, and the common contact pin 112, the first contact pin 113 and the second contact pin 114 of the micro switch 11 are connected to the first terminal 8, the second terminal 9 and the third terminal 10 respectively.

[0052] By adopting the above technical solution, the conduction state among the first wiring terminal 8 , the second wiring terminal 9 and the third wiring terminal 10 is switched by the micro switch 11 .

[0053] Example 4

[0054] Specifically, the spring clip assembly 12 includes a first conductive block 121, a second conductive block 123 and a conductive spring clip 124, wherein the first conductive block 121 and the second conductive block 123 are arranged opposite to each other, the first conductive block 121 is connected to the fourth terminal 13, the second conductive block 123 is connected to the fifth terminal 14, one end of the conductive spring clip 124 is connected to the sixth terminal 15, and the other end of the conductive spring clip 124 is located between the first conductive block 121 and the second conductive block 123.

[0055] By adopting the above technical solution, the conductive spring 124 cooperates with the first conductive block 121 and the second conductive block 123 to switch the conduction state among the fourth connecting terminal 13 , the fifth connecting terminal 14 and the sixth connecting terminal 15 .

[0056] Specifically, a conductive screw 122 is connected to one end of the conductive spring 124 located between the first conductive block 121 and the second conductive block 123 .

[0057] By adopting the above technical solution, the tightness of the contact between the conductive spring piece 124 and the first conductive block 121 or the second conductive block 123 is ensured, thereby avoiding the situation of poor contact.

[0058] Specifically, the trigger block 5 is provided with a slot 52 , and the slot 52 is stuck on the outer side of the conductive spring sheet 124 .

[0059] By adopting the above technical solution, the card slot 52 is stuck on the outer side of the conductive spring sheet 124, pushing the conductive spring sheet 124 to switch smoothly between the first conductive block 121 and the second conductive block 123, thereby switching the conduction state of the alarm indication circuit, thereby improving the stability and safety of the electrical connection.

[0060] Example 5

[0061] Furthermore, the implementation method of a dual alarm electrical accessory for a circuit breaker described in the utility model comprises the following steps:

[0062] (i) Connect the alarm indication circuit 1 to the first terminal 8, the second terminal 9 and the third terminal 10, and connect the alarm indication circuit 2 to the fourth terminal 13, the fifth terminal 14 and the sixth terminal 15;

[0063] (ii) When the circuit breaker is closed, the handle assembly 3 drives the swing block 6 to rotate clockwise to the set position through the connecting rod 4, the trip button 7 is locked with the lock block 62, and the swing block 6 pushes the touch block 5 to rotate clockwise to the set position through the abutment block 61, and the touch block 5 pushes the conductive spring 124 to abut against the first conductive block 121. At this time, the fourth terminal 13 and the sixth terminal 15 are in a conducting state; the touch block 5 is separated from the contact arm 111 of the micro switch 11, and the common contact pin 112 of the micro switch 11 is connected to the second contact pin 114. At this time, the first terminal 8 and the third terminal 10 are in a conducting state;

[0064] (III) When a circuit breaker fails and an alarm is required, the trip button 7 is forced to rotate and separate from the lock block 62, the swing block 6 is reset counterclockwise to the set position under the action of the torsion spring 63, the abutment block 61 is separated from the touch block 5, and the touch block 5 is reset counterclockwise to the set position under the action of the tension spring 51, and the touch block 5 drives the conductive spring 124 to abut against the second conductive block 123. At this time, the fifth wiring terminal 14 and the sixth wiring terminal 15 are in a conducting state; the touch block 5 abuts against the contact arm 111 of the micro switch 11, and the common contact pin 112 of the micro switch 11 is connected to the first contact pin 113. At this time, the first wiring terminal 8 and the second wiring terminal 9 are in a conducting state, and the alarm indication circuit 1 and the alarm indication circuit 2 are connected;

[0065] (IV) After the fault is eliminated, close the circuit breaker and switch it to the state described in step (II).

[0066] In summary, the utility model can connect two alarm indication circuits at the same time, effectively reducing the installation volume occupied by the circuit environment of the electrical accessories requiring two alarms, can provide dual alarm indication without adding extra space, simplify installation and wiring, and improve the safety of the circuit connection environment to a certain extent, which not only meets the needs of dual alarms, but also maintains the compactness and neatness of the circuit system structure; the utility model is provided with a swing block 6, and when the circuit breaker is closed, the swing block 6 pushes the touch block 5 to move, and after the closing is completed, the touch block 5 is limited, thereby ensuring the stability of the touch block 5 and reducing the failure rate; the utility model has a guide round block 34 on the circumference of the handle block 31, and the touch block 5 is provided with a guide block 53 corresponding to the guide round block 34, and the handle assembly 3 is rotated, and the guide round block 34 cooperates with the guide block 53 to realize the rotation of the touch block 5, thereby realizing the test function; the utility model The type can realize the switching of the conduction state of the circuit through the micro switch 11 or the spring assembly 12. The micro switch 11 has the characteristics of high sensitivity and long life, and the spring assembly 12 has the characteristics of good stability and low cost, which increases the diversity of the circuit breaker alarm electrical accessories; the conductive spring 124 of the utility model is located between the first conductive block 121 and the second conductive block 123. One end is connected with a conductive screw 122 to ensure the tightness of the contact between the conductive spring 124 and the first conductive block 121 or the second conductive block 123, thereby avoiding poor contact; the touch block 5 of the utility model is provided with a card slot 52, which is stuck on the outer side of the conductive spring 124 through the card slot 52, pushing the conductive spring 124 to switch smoothly between the first conductive block 121 and the second conductive block 123, thereby switching the conduction state of the alarm indication circuit, thereby improving the stability and safety of the electrical connection.

[0067] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A dual alarm electrical accessory for a circuit breaker, characterized in that: The invention comprises a shell, a cover plate is connected to the side of the shell, a handle assembly, a trigger block and a swing block are respectively rotated in the shell, wherein the swing block is arranged on one side of the handle assembly, the swing block and the shell are connected by a torsion spring, and the swing block and the handle assembly are connected by a connecting rod, a jump button is rotated on one side of the swing block, and a locking block corresponding to the jump button is connected to the swing block, the trigger block is arranged above the swing block, and an abutment block corresponding to the side of the trigger block is arranged on the swing block, and the trigger block is also connected to the shell by a tension spring; Also includes a first terminal, a second terminal, a third terminal, a fourth terminal, a fifth terminal and a sixth terminal, wherein the first terminal, the second terminal and the third terminal are arranged on one side of the housing, and the fourth terminal, the fifth terminal and the sixth terminal are arranged on the other side of the housing; It also includes two switching modules, one switching module is connected to the first wiring terminal, the second wiring terminal and the third wiring terminal, and the other switching module is connected to the fourth wiring terminal, the fifth wiring terminal and the sixth wiring terminal.

2. A dual alarm electrical accessory for a circuit breaker according to claim 1, characterized in that: The handle assembly comprises a handle block, wherein the handle block is sleeved on a first shaft rod on the housing, a dial handle is connected to a side surface of the handle block, and a linkage pin is connected to the dial handle.

3. A dual alarm electrical accessory for a circuit breaker according to claim 2, characterized in that: A guide round block is arranged on the circumference of the handle block, and a guide block corresponding to the guide round block is arranged on the trigger block.

4. A dual alarm electrical accessory for a circuit breaker according to claim 1, characterized in that: The jump buckle is connected with a linkage shaft.

5. A dual alarm electrical accessory for a circuit breaker according to claim 1, characterized in that: The switching module is a micro switch and / or a spring assembly.

6. A dual alarm electrical accessory for a circuit breaker according to claim 5, characterized in that: The contact arm of the micro switch is arranged at the end of the corresponding trigger block, and the common contact pin, the first contact pin and the second contact pin of the micro switch are respectively connected to the first terminal, the second terminal and the third terminal or the fourth terminal, the fifth terminal and the sixth terminal.

7. A dual alarm electrical accessory for a circuit breaker according to claim 5, characterized in that: The spring element assembly includes a first conductive block, a second conductive block and a conductive spring element, wherein the first conductive block and the second conductive block are arranged opposite to each other, the first conductive block is connected to the third terminal or the fourth terminal, the second conductive block is connected to the second terminal or the fifth terminal, one end of the conductive spring element is connected to the first terminal or the sixth terminal, and the other end of the conductive spring element is located between the first conductive block and the second conductive block.

8. A dual alarm electrical accessory for a circuit breaker according to claim 7, characterized in that: A conductive screw is connected to one end of the conductive spring sheet located between the first conductive block and the second conductive block.

9. A dual alarm electrical accessory for a circuit breaker according to claim 7, characterized in that: The trigger block is provided with a clamping slot which is clamped on the outer side of the conductive spring sheet.

Images