Circuit breaker withstand voltage detection equipment with circuit opening and closing structure

Abstract

The utility model relates to a circuit breaker withstand voltage detection device with an on-off circuit structure, and the device comprises an opening and closing switching mechanism, the opening and closing switching mechanism comprises a switching driving source, a moving seat, a fixed seat, and an electric connection assembly, the switching driving source is used for driving the moving seat to move in a direction close to or away from the fixed seat, and the moving seat is used for driving the moving seat to move in a direction close to or away from the fixed seat. When the movable seat is close to the fixed seat, the movable seat is electrically connected with the fixed seat, and the fixed seat is electrically connected with a switching-on and switching-off mechanism on the circuit breaker through an electric connection assembly. Opening and closing switching of the circuit breaker is achieved through the automatic equipment, manual opening and closing switching is not needed, operation is convenient and fast, running is stable, and safety is high.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of withstand voltage detection equipment, in particular to a circuit breaker withstand voltage detection equipment with opening and closing circuit structure. BACKGROUND

[0002] Before any operation, the pole-mounted circuit breaker needs to confirm the on-off state of the pole-mounted circuit breaker, and the pole-mounted circuit breaker includes an on-off mechanism, and the on-off mechanism includes an electric control part, and the electric control part controls the switching of the on-off state of the circuit breaker through an electric signal.

[0003] The withstand voltage detection is one of the main methods for testing the overvoltage bearing capacity of electrical appliances, electrical equipment, electrical devices, electrical lines and electrical safety tools. As an electrical switch, the pole-mounted circuit breaker also needs to be subjected to withstand voltage detection before leaving the factory to verify whether the circuit breaker is qualified. The withstand voltage detection includes three kinds of withstand voltage tests of phase-to-phase, overall-to-ground and fracture, specifically: (1) withstand voltage detection between three phases: the circuit breaker is in the on state, the test phase is pressurized, and the other two phases are short-circuited and grounded; (2) withstand voltage detection of three phases and the shell: the circuit breaker is in the on state, the three phases are short-circuited and pressurized, and the shell is grounded; (3) withstand voltage detection of the input and output lines: the circuit breaker is in the off state, the three-phase short-circuit end is pressurized, the static contact is short-circuited and grounded, and the overall is grounded.

[0004] The existing pole-mounted circuit breaker often switches the on-off state of the circuit breaker manually during withstand voltage detection, which is troublesome, affects the detection efficiency, and has low safety of manual operation. CONTENT OF THE INVENTION

[0005] In order to improve the detection efficiency and safety, the present application provides a circuit breaker withstand voltage detection equipment with opening and closing circuit structure.

[0006] The circuit breaker withstand voltage detection equipment with opening and closing circuit structure provided by the present application adopts the following technical scheme:

[0007] The circuit breaker withstand voltage detection equipment with opening and closing circuit structure includes an on-off switching mechanism, the on-off switching mechanism includes a switching drive source, a moving seat, a fixed seat and an electrical connection assembly, the switching drive source is used to drive the moving seat to move along the direction of approaching or moving away from the fixed seat, when the moving seat approaches the fixed seat, the moving seat is electrically connected with the fixed seat, and the fixed seat is electrically connected with the on-off mechanism on the circuit breaker through the electrical connection assembly.

[0008] By adopting the technical scheme, the movable seat is driven to move to electrically connect with the fixed seat by switching the driving source, the on-off mechanism on the circuit breaker is turned on or off, the on-off state of the circuit breaker is switched, and the circuit breaker is subjected to voltage withstand detection by the detection mechanism, so that the on-off switching of the circuit breaker is realized by automatic equipment, manual on-off switching is not needed, the operation is convenient and fast, the operation is stable, and the safety is high.

[0009] Optionally, the fixed seat is provided with an electric contact rod, the movable seat is provided with an electric contact plate corresponding to the electric contact rod, and an elastic member for driving the electric contact plate to abut against the electric contact rod is connected between the electric contact plate and the movable seat.

[0010] By adopting the technical scheme, when the electric contact rod abuts against the electric contact plate, the movable seat continues to move, the elastic member elastically drives the electric contact plate to always abut against the electric contact rod, and the stability of the electric connection between the electric contact plate and the electric contact rod is ensured.

[0011] Optionally, the movable seat comprises a shell and a cover body that are fixedly connected, the electric contact plate is arranged on the cover body and in the shell, a insertion slot that is in communication with an inner cavity of the shell is formed through the cover body, and the insertion slot is used for inserting the electric contact rod.

[0012] By adopting the technical scheme, the electric contact plate is protected in the shell, when the electric contact plate is electrically connected with the electric contact rod, both of them are in the shell, and the safety of the electric connection is ensured.

[0013] Optionally, the electric contact plate is rotationally arranged on the cover body, the elastic member is a torsion spring, and the two ends of the elastic member are arranged on the electric contact plate and the cover body, respectively.

[0014] By adopting the technical scheme, under the premise that the movable seat moves by the same distance, if a compression spring is used, a longer compression spring needs to be used, which is inconvenient to set, and the torsion spring can convert the movement distance of the movable seat into the rotation angle of the electric contact plate, which is convenient to set.

[0015] Optionally, the on-off mechanism further comprises an on-off switch assembly, a rotation driving source and a rotation seat, the on-off switch assembly is used for being electrically connected with the rotation driving source, the rotation driving source is used for driving the rotation seat to rotate, and the rotation seat is used for mounting the circuit breaker.

[0016] By adopting the technical scheme, after the previous process is completed, the circuit breaker is in an inverted state, after the circuit breaker is mounted on the rotation seat, the rotation driving source is driven to work by the on-off switch assembly, the rotation seat is driven to rotate to a suitable position, manual overturning of the circuit breaker is not needed, manpower is saved, and the detection mechanism is convenient to perform voltage withstand detection on the circuit breaker.

[0017] Optionally, the detection mechanism is further configured to detect the withstand voltage of the circuit breaker, and the detection mechanism comprises a rack and a detection driving source and a detection piece arranged on the rack, wherein the detection driving source is configured to drive the detection piece to move towards or away from the circuit breaker.

[0018] By using the above technical scheme, the detection piece is driven by the detection driving source to detect the withstand voltage of the circuit breaker, so as to realize automatic withstand voltage detection and improve detection stability and safety.

[0019] Optionally, the detection piece is rotatably arranged on the rack, and the detection driving source is hingedly connected to the rack, and the driving end of the detection driving source is hingedly connected to the detection piece.

[0020] By using the above technical scheme, the detection piece is driven by the detection driving source to rotate, so as to realize automatic withstand voltage detection, and the detection piece is rotatably arranged on the rack, so as to reduce the space occupied by the detection piece, and the detection driving source is hingedly connected to the detection piece and the rack, so as to adapt to the offset of the detection piece relative to the detection driving source.

[0021] Optionally, the detection piece comprises a detection end configured to be electrically connected to the circuit breaker and a hinged end hingedly connected to the rack, and the detection driving source is hingedly connected between the hinged end and the detection end.

[0022] By using the above technical scheme, the detection driving source is located between the hinged end and the detection end, so as to reduce the space occupied by the detection driving source, and the driving piece of the detection driving source only needs to move a small distance to realize the rotation of the detection piece by a large angle, so as to reduce the requirement for the movement distance of the detection driving source.

[0023] In summary, the present application has at least one of the following beneficial technical effects:

[0024] 1. The circuit breaker switching is realized by the automatic equipment, without manual switching, so as to be convenient and fast, stable in operation, and high in safety;

[0025] 2. The elastic driving electric contact plate of the elastic piece is always in contact with the electric contact rod, so as to ensure the stability of the electric connection between the electric contact plate and the electric contact rod;

[0026] 3. The switching mechanism can not only switch the on-off state of the circuit breaker, but also detect the on-off state of the circuit breaker, so as to improve the detection safety, without manual judgment, save manpower, and improve the detection efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0027] Figure 1 is a structural schematic diagram of the present application.

[0028] Figure 2 is an explosion diagram of the highlighted electric contact plate and electric contact rod in the electrically connected state of the movable seat and the fixed seat in the present application.

[0029] Figure 3 is Figure 2 Enlarged view of C in FIG.

[0030] Figure 4 is Figure 1 Enlarged view of A in FIG.

[0031] Figure 5 is another structural schematic view of the present application.

[0032] Figure 6 is Figure 5 Enlarged view of D in FIG.

[0033] Figure 7 is Figure 1 Enlarged view of B in FIG.

[0034] BRIEF DESCRIPTION OF DRAWINGS 1, switching mechanism; 11, switching driving source; 12, moving seat; 121, shell; 122, cover; 123, slot; 13, fixed seat; 14, electrical connection assembly; 141, aviation plug; 142, wire; 2, detection mechanism; 21, rack; 22, detection driving source; 23, detection piece; 231, detection end; 232, hinged end; 3, electrical contact rod; 4, electrical contact plate; 5, elastic piece; 6, opening and closing mechanism; 61, opening and closing switch assembly; 62, rotating driving source; 621, motor; 622, transmission structure; 63, rotating seat; 631, transmission rod; 64, detection assembly; 641, sensor; 642, sensing piece; 7, base; 8, mounting seat; 9, hinge; 10, support frame. DETAILED DESCRIPTION

[0035] The following will be described in detail in combination with the accompanying drawings. Figures 1-7 The present application will be further described in detail.

[0036] The embodiment of the present application discloses a circuit breaker withstand voltage detection device with opening and closing circuit structure. Referring to Figure 1 The circuit breaker withstand voltage detection device with opening and closing circuit structure comprises a switching mechanism 1, the switching mechanism 1 comprises a switching driving source 11, a moving seat 12, a fixed seat 13 and an electrical connection assembly 14, the switching driving source 11 is used for driving the moving seat 12 to be close to or away from the fixed seat 13, when the moving seat 12 is close to the fixed seat 13, the moving seat 12 is electrically connected with the fixed seat 13. The fixed seat 13 and the switching mechanism on the circuit breaker are electrically connected through the electrical connection assembly 14, so that the switching and detection of the switching state of the circuit breaker are realized.

[0037] Referring to Figure 1The circuit breaker withstand voltage detection device with the opening and closing circuit structure further comprises a base 7, and the fixed seat 13 is fixedly installed on the base 7 through a bolt assembly. In the embodiment, the switching driving source 11 is a guide rail type rodless cylinder, and the mounting seat 8 is fixedly installed on the switching driving source 11 through a bolt assembly, and the moving seat 12 is fixedly installed on the mounting seat 8 through a bolt assembly. In other embodiments, the switching driving source 11 can drive the moving seat 12 to move in the form of an electric push rod, an oil cylinder or the like.

[0038] With reference to Figure 2 And Figure 3 The moving seat 12 comprises a housing 121 and a cover 122 fixedly connected through a bolt assembly, a plurality of hinges 9 are fixedly installed on the side wall of the cover 122 towards the housing 121 through a bolt assembly, and the rotation axis of the hinge 9 is perpendicular to the moving direction of the moving seat 12. An electric contact plate 4 is fixedly installed on the movable leaf of the hinge 9 through a bolt assembly, so that the electric contact plate 4 is rotatably installed on the cover 122, and the electric contact plate 4 is located in the housing 121. An elastic element 5 is connected between the electric contact plate 4 and the moving seat 12, the elastic element 5 is a torsion spring, and the two ends of the elastic element 5 are fixed on the two leaves of the hinge 9 respectively.

[0039] With reference to Figure 2 A plug slot 123 is formed through the side wall of the cover 122 and communicates with the inner cavity of the housing 121. A plurality of electric contact rods 3 corresponding to the electric contact plate 4 are fixedly installed on the side wall of the fixed seat 13 close to the moving seat 12. When the moving seat 12 moves towards the direction close to the fixed seat 13, the electric contact rod 3 is inserted into the plug slot 123 and abuts against the electric contact plate 4 to be electrically connected with the electric contact plate 4, and the electric contact rod 3 drives the electric contact plate 4 to rotate.

[0040] With reference to Figure 1 And Figure 4 The circuit breaker withstand voltage detection device with the opening and closing circuit structure further comprises an opening and closing mechanism 6, and the opening and closing mechanism 6 is installed on the base 7. The opening and closing mechanism 6 comprises an opening and closing switch assembly 61, a rotation driving source 62 and a rotation seat 63. The structure of the opening and closing switch assembly 61 is similar to that of the switching driving source 11, the mounting seat 8, the moving seat 12 and the fixed seat 13 in the opening and closing mechanism 1. The fixed seat 13 in the opening and closing switch assembly 61 is electrically connected with the rotation driving source 62 through a wire.

[0041] With reference to Figure 1 And Figure 4 A support frame 10 is fixedly installed on the base 7 through a bolt assembly, the rotation driving source 62 is fixedly installed on the support frame 10, and the rotation seat 63 is rotatably installed on the support frame 10. The rotation seat 63 is used for fixedly installing a circuit breaker through a bolt assembly, and the rotation driving source 62 drives the rotation seat 63 to rotate. In the embodiment, the rotation driving source 62 comprises a motor 621 and a transmission structure 622.

[0042] Referring to Figure 5 With Figure 6 The rotating seat 63 is fixedly provided with a transmission rod 631, and the transmission rod 631 is connected with the transmission structure 622. In other embodiments, the rotating driving source 62 can not include the transmission structure 622, and the output shaft of the motor 621 is fixedly connected with the transmission rod 631.

[0043] Referring to Figure 4 With Figure 6 The opening and closing mechanism 6 further includes a detection assembly 64, and the detection assembly 64 includes a sensor 641 and a sensing piece 642. The sensor 641 is fixedly installed on the support frame 10, and the sensor 641 is a metal sensor. The sensing piece 642 is fixedly installed on the transmission rod 631, and the sensing piece 642 is made of metal. The sensor 641 is used for detecting the sensing piece 642.

[0044] Referring to Figure 5 With Figure 6 The electrical connection assembly 14 includes an aviation plug 141 installed on the circuit breaker and a wire 142 fixedly installed on the fixed seat 13, and the plug end of the wire 142 is used for plug-in cooperation with the aviation plug 141 to realize electrical connection.

[0045] Referring to Figure 1 With Figure 7 The circuit breaker withstand voltage detection equipment with the opening and closing circuit structure further includes a detection mechanism 2, and the detection mechanism 2 is used for detecting the withstand voltage of the circuit breaker. The detection mechanism 2 includes a rack 21, a detection driving source 22 and a detection piece 23, and the detection driving source 22 and the detection piece 23 are both installed on the rack 21. The detection driving source 22 and the detection piece 23 are provided in three groups, each group has two detection driving sources 22 and detection pieces 23, and the three groups of detection driving sources 22 and detection pieces 23 correspond to three phases of the circuit breaker respectively.

[0046] Referring to Figure 1 With Figure 7 The detection piece 23 includes a detection end 231 and a hinged end 232, and the hinged end 232 is hinged on the rack 21. The fixed end of the detection driving source 22 is hinged on the rack 21, and the driving end of the detection driving source 22 is hinged on the detection piece 23 and located between the detection end 231 and the hinged end 232. The detection driving source 22 is an electric push rod, and the detection driving source 22 drives the detection piece 23 to rotate through the extension and retraction of the driving rod, so that the detection end 231 is electrically connected with the circuit breaker.

[0047] The working principle of the circuit breaker withstand voltage detection equipment with the opening and closing circuit structure is as follows: first, the operator fixes and installs the circuit breaker on the rotating seat 63 through the bolt assembly, and moves the moving seat 12 in the opening and closing mechanism 6 and the switching mechanism 1 towards the direction close to the fixed seat 13, the electric connecting rod 3 abuts against the electric connecting plate 4 and drives the electric connecting plate 4 to rotate, the electric connecting plate 4 always abuts against the electric connecting rod 3 under the elastic action of the elastic member 5, the electric connecting plate 4 in the opening and closing mechanism 6 is electrically connected with the electric connecting rod 3, the rotating driving source 62 is driven to work, the rotating driving source 62 drives the rotating seat 63 to rotate 180°, and the circuit breaker is rotated to the upright upward state, at this time, the sensing member 642 on the transmission rod 631 is rotated to the vicinity of the sensor 641, the sensor 641 detects the sensing member 642, judges that the rotating seat 63 is rotated to the position, and controls the rotating driving source 62 to stop rotating; at the same time, the electric connecting plate 4 in the switching mechanism 1 is electrically connected with the electric connecting rod 3, the switching mechanism 1 switches and detects the circuit breaker opening and closing state; according to different withstand voltage detection, the corresponding detection member 23 is driven to rotate by the different detection driving source 22, the detection end 231 is electrically connected with the circuit breaker, and the withstand voltage detection is carried out.

[0048] The above are preferred embodiments of the present application, and do not limit the protection scope of the present application, therefore: all equivalent changes made according to the structure, shape, principle of the present application should be covered in the protection scope of the present application.

Claims

1. A circuit breaker withstand voltage testing device with an opening and closing circuit structure, characterized in that: The circuit breaker includes a circuit breaker switching mechanism (1), which includes a switching drive source (11), a moving base (12), a fixed base (13), and an electrical connection component (14). The switching drive source (11) is used to drive the moving base (12) to move in a direction close to or away from the fixed base (13). When the moving base (12) is close to the fixed base (13), the moving base (12) is electrically connected to the fixed base (13). The fixed base (13) is electrically connected to the circuit breaker switching mechanism through the electrical connection component (14).

2. The circuit breaker withstand voltage testing device with an opening and closing circuit structure according to claim 1, characterized in that: The fixed seat (13) is provided with an electric contact rod (3), and the movable seat (12) is provided with an electric contact plate (4) corresponding to the electric contact rod (3). An elastic element (5) for driving the electric contact plate (4) to abut against the electric contact rod (3) is connected between the electric contact plate (4) and the movable seat (12).

3. The circuit breaker withstand voltage testing device with an opening and closing circuit structure according to claim 2, characterized in that: The movable base (12) includes a housing (121) and a cover (122) that are fixedly connected. The electrical connection plate (4) is disposed on the cover (122) and located inside the housing (121). A slot (123) communicating with the inner cavity of the housing (121) is provided through the cover (122). The slot (123) is used for inserting the power supply rod (3).

4. The circuit breaker withstand voltage testing device with an opening and closing circuit structure according to claim 3, characterized in that: The electrical connection plate (4) is rotatably mounted on the cover (122), and the elastic element (5) is a torsion spring. The two ends of the elastic element (5) are respectively mounted on the electrical connection plate (4) and the cover (122).

5. The circuit breaker withstand voltage testing device with an opening and closing circuit structure according to claim 1, characterized in that: It also includes an opening and closing mechanism (6), which includes an opening and closing switch assembly (61), a rotation drive source (62) and a rotating seat (63). The opening and closing switch assembly (61) is used to be electrically connected to the rotation drive source (62), the rotation drive source (62) is used to drive the rotating seat (63) to rotate, and the rotating seat (63) is used for circuit breaker installation.

6. The circuit breaker withstand voltage testing device with an opening and closing circuit structure according to claim 1, characterized in that: It also includes a testing mechanism (2), which is used to perform withstand voltage testing on the circuit breaker. The testing mechanism (2) includes a frame (21) and a testing drive source (22) and a testing element (23) disposed on the frame (21). The testing drive source (22) is used to drive the testing element (23) to move closer to or away from the circuit breaker.

7. The circuit breaker withstand voltage testing device with an opening and closing circuit structure according to claim 6, characterized in that: The detection element (23) is rotatably mounted on the frame (21), and the detection drive source (22) is hinged on the frame (21). The drive end of the detection drive source (22) is hinged to the detection element (23).

8. The circuit breaker withstand voltage testing device with an opening and closing circuit structure according to claim 7, characterized in that: The detection element (23) includes a detection end (231) for electrical connection with the circuit breaker and a hinge end (232) hinged to the frame (21), and the detection drive source (22) is hinged between the hinge end (232) and the detection end (231).

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