Rotating block microswitch linkage mechanism of molded case circuit breaker

Abstract

The utility model discloses a rotating block microswitch linkage mechanism of a molded case circuit breaker, which comprises a shell and an electric operating mechanism arranged in the shell, the electric operating mechanism comprises a rotating block arranged in a rotating manner, the shell comprises a base and a middle seat arranged on the base, the electric operating mechanism is arranged at a position between the base and the middle seat, the rotating block is arranged in the base, and the rotating block is arranged in the middle seat. Two microswitches are arranged in the base and located below the rotating block, the two microswitches are arranged on the bottom face of the base side by side, contact elastic pieces on the two microswitches have different inclination angles, and when the rotating block rotates, the rotating block can be sequentially connected with the two contact elastic pieces in an abutting mode or be matched with the two contact elastic pieces in a separated mode. According to the utility model, the structure design is reasonable, the cooperation with the rotating block and the feedback of three signal states can be realized only by arranging the two microswitches and adaptively setting the inclination angles of the two contact elastic sheets, other additional linkage mechanisms are not needed, the internal space of the shell is saved, and the production and manufacturing cost is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to low voltage electrical apparatus technical field more specifically, relate to a kind of transfer block microswitch linkage mechanism of molded case circuit breaker. BACKGROUND

[0002] The existing molded case circuit breaker with energy storage type electric operating mechanism generally has free tripping, reclosing and closing states, and the operating form of the energy storage type electric operating mechanism generally has manual and automatic two kinds, and the two can be switched to each other and operate the circuit breaker matched therewith, wherein the energy storage is to store the electric energy in the compressed spring through the motor and the speed reduction mechanism, and the stored energy is released instantaneously to push the handle of the circuit breaker when needed, to realize the closing operation of the molded case circuit breaker. In the manual state, the energy storage mechanism is energized by operating the manual operating mechanism, to complete the reclosing operation of the matched circuit breaker, to prepare for the next closing. In the automatic state, an electric signal is given to the electric operation, and the motor is driven through the multi-stage transmission gear to realize the energy storage operation of the energy storage mechanism, and the reclosing operation of the matched circuit breaker is completed synchronously, to prepare for the next closing. The above-mentioned manual state is suitable for on-site operation, and the operator can operate the circuit breaker on site. The automatic state is suitable for remote operation, and the operator can operate the electric operation mechanism remotely through communication control to realize the closing and opening operation of the circuit breaker.

[0003] When performing remote electric operation, the current state of the circuit breaker needs to be detected, which is usually realized by a microswitch and a circuit board arranged in the molded case circuit breaker. The microswitch feeds back the state signal of the current molded case circuit breaker to the circuit board, so that the remote operation control of the electric operation mechanism can be realized. The indicating member mechanism including the microswitch needs to give corresponding signal state feedback indication to the circuit board.

[0004] Therefore, the applicant's prior application CN223436478U proposes an indicating member mechanism of molded case circuit breaker, which comprises a housing, an electric operating mechanism arranged in the housing, and a microswitch and a circuit board arranged in the housing. The electric operating mechanism comprises a rotating transfer block. The microswitch is arranged at intervals, and a swing lever is rotatably arranged in the housing. The swing lever comprises a rotating part arranged in the middle, an abutting segment arranged on one side of the rotating part and abutting against the transfer block, and an abutting segment arranged on the other side of the rotating part and abutting against the two microswitches, respectively. The swing lever is rotatably arranged in the housing through the rotating part. The utility model changes the position state of the swing lever and the two microswitches by arranging the swing lever in linkage with the electric operating mechanism, so that the closing state, the free tripping state and the reclosing state can be fed back to the circuit board.

[0005] However, the above scheme needs to set the swing lever, the swing lever needs to be reserved in the shell, which leads to the increase of the overall size of the shell, and the setting of the swing lever also increases the production manufacturing cost. Utility model content

[0006] The utility model overcomes the insufficient prior art, its structure design is reasonable, only needs to set two microswitches, and the inclination angle of two contact springs is adapted to set, can realize cooperation with the rotating block, realizes the feedback of three signal states, need not to set other linkage mechanism additionally, saves the internal space of shell, reduces production manufacturing cost.

[0007] To achieve the above object, the utility model provides the following technical scheme:

[0008] A rotating block microswitch linkage mechanism of molded case circuit breaker, including shell, the electric operation mechanism that sets in the shell, electric operation mechanism includes the rotating block of rotation setting, the shell includes base and the middle seat that sets on the base, electric operation mechanism sets at the position between base and middle seat, the rotating block sets in the base, two microswitches are set up in the base below the rotating block, two microswitches are side by side arranged on the bottom surface of base, the contact spring on two microswitches has different inclination angles, the rotating block can be in turn with two contact springs abutment or separate cooperation when rotating.

[0009] By adopting the above technical scheme, by setting two microswitches on the bottom surface of base, and the contact spring of two microswitches has different inclination angles, when the rotating block rotates, it will be in turn with two contact springs abutment. Specifically, when the contact spring of two microswitches is not abutted with the rotating block, at this time, the free tripping state signal is fed back, when the contact spring of two microswitches is abutted with the rotating block, at this time, the closing state signal is fed back, when the contact spring close to the rotating block is abutted with the rotating block, and the contact spring away from the rotating block is not abutted with the rotating block, at this time, the reclosing state signal is fed back. In this way, only two microswitches need to be set, and the inclination angles of two contact springs are adapted to be set, which can realize cooperation with the rotating block, realize the feedback of three signal states, need not to set other linkage mechanism, save the internal space of shell, reduce production manufacturing cost.

[0010] Preferably, the rotating block is provided with an abutment portion abutting against the two contact springs, and the rotating block is provided with a receiving space corresponding to the two microswitches, and the abutment portion is located in the receiving space.

[0011] By adopting the above technical scheme, the abutment portion can be located in the receiving space or not, and the setting of the receiving space prevents the rotating block from interfering with the microswitch during rotation, and only the abutment portion located in the receiving space abuts against the contact spring, ensuring the accuracy of the abutment cooperation.

[0012] Preferably, the shaft body is arranged on the rotating block, the arc-shaped slot is arranged on the base, the shaft body is rotatably arranged in the arc-shaped slot, the base is provided with the slot on the upper side wall of the arc-shaped slot, the plug is arranged in the slot, the lower end of the plug is provided with the arc-shaped hole matched with the rotating shaft, and the rotating shaft is located between the arc-shaped slot and the arc-shaped hole.

[0013] By adopting the above technical scheme, the arc-shaped slot is arranged to accommodate and support the shaft body of the rotating block, and the plug with the arc-shaped hole is arranged to better install and position the shaft body, and the shaft body can be smoothly arranged between the arc-shaped hole and the arc-shaped slot.

[0014] Preferably, the base is fixedly connected with the wiring board for fixing and supporting the two micro switches.

[0015] By adopting the above technical scheme, the two micro switches are specifically fixedly installed on the wiring board, and the wiring board is electrically connected with the circuit board in the shell through the wires, so that the signal feedback of the two micro switches is realized.

[0016] Preferably, the wiring board comprises a wiring part and a supporting part, the wiring part is located on the front surface of the base, the supporting part is located on the back surface of the base, the base is provided with two first through holes for the two micro switches to pass through, and the base is provided with a second through hole for the wiring part to pass through.

[0017] By adopting the above technical scheme, the wiring part and the supporting part are specifically integrally formed, the wiring part is arranged on the front surface of the base, which is convenient for connecting with the circuit board through the wires, and the first through hole and the second through hole are arranged to enable the two micro switches and the wiring part to pass through the base and be located on the front surface of the base.

[0018] Preferably, the supporting part is provided with a mounting hole, the base is provided with a positioning column corresponding to the mounting hole, and the positioning column is hollow. The fastener passes through the mounting hole and is located in the positioning column, so that the wiring board is fixedly connected to the base.

[0019] By adopting the above technical scheme, the fastener is specifically a screw, the positioning column is provided with a threaded hole, and the screw passes through the mounting hole and the threaded hole to realize the mounting and fixing of the wiring board.

[0020] Preferably, the back surface of the base is provided with a positioning slot for accommodating and supporting the supporting part, and the back surface of the base is provided with a cover plate.

[0021] By adopting the above technical scheme, during installation, the two micro switches pass through the first through hole, and the wiring part passes through the second through hole. At this time, the supporting part is located in the positioning slot. Then, the wiring board is fixed on the bottom by the fastener. Finally, the cover plate is arranged on the back surface of the base, and the cover plate protects the wiring part and the micro switch. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 It is the structure schematic view of the embodiment of the utility model;

[0023] Figure 2 It is the structure schematic view of the embodiment of the utility model reflecting micro switch;

[0024] Figure 3 It is the structure schematic view of the embodiment of the utility model reflecting rotating block;

[0025] Figure 4 It is the structure schematic view of the embodiment of the utility model reflecting shell;

[0026] Figure 5 It is the structure schematic view of the embodiment of the utility model reflecting electric operating mechanism on base;

[0027] Figure 6 It is the structure schematic view of the embodiment of the utility model reflecting micro switch on base;

[0028] Figure 7 It is the structure schematic view of the embodiment of the utility model reflecting the local structure of the back of base;

[0029] Figure 8 It is the structure schematic view of the embodiment of the utility model reflecting the back of base;

[0030] Figure 9 It is Figure 8 The enlarged view of A in Fig. 1;

[0031] Figure 10 It is the structure schematic view of the embodiment of the utility model reflecting cover plate on base.

[0032] In the figure: 1, shell; 2, electric operating mechanism; 3, rotating block; 31, abutment; 32, containing space; 33, shaft body; 4, base; 41, arc-shaped slot; 42, slot; 43, plug; 44, arc-shaped hole; 45, first perforation; 46, second perforation; 47, positioning column; 48, positioning slot; 5, middle base; 6, micro switch; 61, contact spring; 7, wiring board; 71, wiring part; 72, support part; 73, mounting hole; 8, fastener; 9, cover plate. DETAILED DESCRIPTION

[0033] With reference to the drawings and embodiments of the present application, the technical solutions in the embodiments of the present application will be described clearly and completely. Obviously, the described embodiments are only some of the embodiments of the present application, but not all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative work are within the scope of the present application.

[0034] As shown in the drawings, Figures 1-10 A rotating block micro switch linkage mechanism of a molded case circuit breaker, comprising a shell 1, an electric operating mechanism 2 arranged in the shell 1, the electric operating mechanism 2 comprising a rotatingly arranged rotating block 3, the shell 1 comprising a base 4 and a middle seat 5 arranged on the base 4, the electric operating mechanism 2 being arranged at a position between the base 4 and the middle seat 5, the rotating block 3 being arranged in the base 4, two micro switches 6 being arranged on the bottom surface of the base 4 below the rotating block 3, the contact springs 61 of the two micro switches 6 having different inclination angles, and the rotating block 3 being capable of sequentially abutting or separating from the two contact springs 61 when rotating.

[0035] By adopting the above technical solution, the two micro switches 6 are arranged on the bottom surface of the base 4, and the contact springs 61 of the two micro switches have different inclination angles. When the rotating block 3 rotates, the rotating block 3 will sequentially abut the two contact springs 61. Specifically, when the contact springs 61 of the two micro switches 6 are not in abutment with the rotating block 3, a free tripping state signal is fed back. When the contact springs 61 of the two micro switches 6 are in abutment with the rotating block 3, a closing state signal is fed back. When the contact spring 61 close to the rotating block 3 is in abutment with the rotating block 3, and the contact spring 61 away from the rotating block 3 is not in abutment with the rotating block 3, a reclosing state signal is fed back. In this way, only two micro switches 6 are arranged, and the inclination angles of the two contact springs 61 are adapted and arranged, so that the rotating block 3 can be cooperated with, three signal states can be fed back, and no other linkage mechanism needs to be additionally arranged, thereby saving the internal space of the shell 1 and reducing the production manufacturing cost.

[0036] The rotating block 3 is provided with an abutment portion 31 abutting the two contact springs 61, and the rotating block 3 is provided with a containing space 32 corresponding to the positions of the two micro switches 6, and the abutment portion 31 is located in the containing space 32. The abutment portion 31 can be located in the containing space 32 or not. The containing space 32 is arranged to prevent the rotating block 3 from interfering with the micro switch 6 when the rotating block 3 rotates. The abutment portion 31 arranged in the containing space 32 is in abutment with the contact spring 61, thereby ensuring the accuracy of the abutment.

[0037] And, the shaft body 33 is arranged on the rotating block 3, the arc-shaped slot 41 is arranged on the base 4, the shaft body 33 is rotatably arranged in the arc-shaped slot 41, the slotted holes 42 are arranged on the two side walls of the base 4 above the arc-shaped slot 41, the plug blocks 43 are inserted in the slotted holes 42, the lower ends of the plug blocks 43 are provided with the arc-shaped holes 44 matched with the rotating shafts, and the rotating shafts are located between the arc-shaped slot 41 and the arc-shaped holes 44. The arrangement of the arc-shaped slot 41 can accommodate and support the shaft body 33 of the rotating block 3, the plug blocks 43 provided with the arc-shaped holes 44 can better install and position the shaft body 33, and the shaft body 33 can be rotatably arranged between the arc-shaped holes 44 and the arc-shaped slot 41.

[0038] And the wiring board 7 for fixing and supporting the two micro switches 6 is fixedly connected to the base 4, the two micro switches 6 are specifically fixedly installed on the wiring board 7, and the wiring board 7 is electrically connected to the circuit board in the shell 1 through wires, so that the signal feedback of the two micro switches 6 is realized.

[0039] And the wiring board 7 includes the wiring part 71 and the supporting part 72, the wiring part 71 is located on the front surface of the base 4, the supporting part 72 is located on the back surface of the base 4, the first through holes 45 for the two micro switches 6 to pass through are arranged on the base 4, and the second through hole 46 for the wiring part 71 to pass through is arranged on the base 4. The wiring part 71 and the supporting part 72 are specifically integrally formed, the wiring part 71 is arranged on the front surface of the base 4, which is convenient for connecting with the circuit board through wires, and the first through hole 45 and the second through hole 46 are arranged, so that the two micro switches 6 and the wiring part 71 can pass through the base 4 and be located on the front surface of the base 4.

[0040] Moreover, the mounting holes 73 are arranged on the supporting part 72, the positioning columns 47 corresponding to the mounting holes 73 are arranged on the base 4, the positioning columns 47 are hollow, the fasteners 8 pass through the mounting holes 73 and are located in the positioning columns 47, so that the wiring board 7 is fixedly connected to the base 4. The fastener 8 is specifically a screw, the threaded holes are arranged in the positioning columns 47, and the screws pass through the mounting holes 73 and the threaded holes, so that the installation and fixation of the wiring board 7 are realized.

[0041] In addition, the positioning slots 48 for accommodating the supporting part 72 are arranged on the back surface of the base 4, and the cover plate 9 is arranged on the back surface of the base 4. During installation, first, the two micro switches 6 pass through the first through holes 45, and the wiring part 71 passes through the second through hole 46, at this time, the supporting part 72 is located in the positioning slot 48, then the wiring board 7 is fixed on the bottom through the fastener 8, and finally the cover plate 9 is arranged on the back surface of the base 4, and the cover plate 9 protects the wiring part 71 and the micro switches 6.

[0042] The above merely describes a preferred embodiment of the present application, and the protection scope of the present application is not limited thereto, and any skilled person in the art, according to the technical scheme and the inventive concept of the present application, makes equivalent replacement or change within the technical range disclosed by the present application, which should be covered within the protection scope of the present application.

Claims

1. A linkage mechanism of a rotary block micro switch of a molded case circuit breaker, comprising a housing (1), an electric operating mechanism (2) arranged in the housing (1), the electric operating mechanism (2) comprising a rotary arranged rotary block (3), the housing (1) comprising a base (4) and a middle seat (5) arranged on the base (4), the electric operating mechanism (2) being arranged at a position between the base (4) and the middle seat (5), the rotary block (3) being arranged in the base (4), characterized in that, Two micro switches (6) are arranged below the rotating block (3) in the base (4), and are arranged side by side on the bottom surface of the base (4). The contact springs (61) on the two micro switches (6) have different inclination angles, and the rotating block (3) can be sequentially abutted or separated from the two contact springs (61) when rotating.

2. The transfer block micro-switch linkage mechanism of a molded case circuit breaker according to claim 1, wherein The rotating block (3) is provided with an abutting portion (31) abutting the two contact springs (61).

3. The transfer block micro-switch linkage mechanism of a molded case circuit breaker according to claim 2, wherein The rotating block (3) is provided with an abutting portion (31) abutting the two contact springs (61).

4. The transfer block micro-switch linkage mechanism of a molded case circuit breaker according to claim 1 or 2 or 3, characterized in that, The rotating block (3) is provided with an abutting portion (31) abutting the two contact springs (61).

5. The transfer block microswitch linkage of a molded case circuit breaker of claim 4 wherein, The rotating block (3) is provided with an abutting portion (31) abutting the two contact springs (61).

6. The transfer block micro-switch linkage mechanism of a molded case circuit breaker of claim 1, wherein, The base (4) is provided with a slot (42) on the upper side wall of the arc-shaped groove (41), and the slot (42) is provided with a plug (43). The lower end of the plug (43) is provided with an arc-shaped hole (44) matched with the rotating shaft. The rotating shaft is located between the arc-shaped groove (41) and the arc-shaped hole (44).

7. The transfer block micro-switch linkage mechanism of a molded case circuit breaker according to claim 6, wherein The base (4) is fixedly connected with a wiring board (7) for fixing and supporting the two micro switches (6).

8. The transfer block micro-switch linkage mechanism of a molded case circuit breaker according to claim 7, wherein The wiring board (7) includes a wiring portion (71) and a supporting portion (72). The wiring portion (71) is located on the front surface of the base (4), and the supporting portion (72) is located on the back surface of the base (4). The base (4) is provided with two first through holes (45) for the two micro switches (6) to pass through. The base (4) is provided with a second through hole (46) for the wiring portion (71) to pass through.

9. The transfer block micro-switch linkage mechanism of a molded case circuit breaker according to claim 8, wherein, The supporting portion (72) is provided with a mounting hole (73), and the base (4) is provided with a positioning column (47) corresponding to the mounting hole (73). The positioning column (47) is hollow, and the fastener (8) passes through the mounting hole (73) and is located in the positioning column (47), so as to fixedly connect the wiring board (7) with the base (4). The back surface of the base (4) is provided with a positioning groove (48) for accommodating the supporting portion (72), and the back surface of the base (4) is provided with a cover plate (9).

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