Interrupting device

Abstract

Interrupter device comprising: a retaining ring (120) mounted in a housing (110) and comprising a pinion (143) mounted in the retaining ring (120) and configured to engage with a first lateral gear (141), the retaining ring (120) having a first claw tooth portion (121) provided on a surface facing the first lateral gear (141); a coupling ring (130) having a second claw tooth portion (131) provided on a surface facing the retaining ring (120), the second claw tooth portion (131) being configured to engage with the first claw tooth portion (121); and a sleeve (150) connected to an actuating device (200) configured to move in an engaged or disengaged direction. move, wherein the sleeve (150) is connected to and configured with the coupling ring (130),to push the clutch ring (130) in one direction towards the retaining ring (120) or to pull the clutch ring (130) in a direction opposite to that of the retaining ring (120).

Description

Technical area

[0001] The present invention relates to a breaker device (e.g., a disconnecting device) that switches from a four-wheel drive to a two-wheel drive. Background technology

[0002] In general, an interrupter device refers to a device mounted in a differential assembly that is capable of minimizing unnecessary power loss by switching between two-wheel drive (2WD) and four-wheel drive (4WD) by engaging or disengaging (e.g., engaging or disengaging) a differential shaft depending on a driving situation.

[0003] Fig. 1 is a view illustrating a breaker device in the related art. Referring to Fig. 1, the breaker device includes a differential assembly 1, a separator shaft 1c connected to a right differential side gear 1b provided in a differential case 1a, a separator hub 1d connected to a right vehicle wheel (not shown), and a separator sleeve 1e configured to enable or block power transmission between the separator shaft 1c and the separator hub 1d. A final gear 1h may be coupled to the differential case 1a.

[0004] A left differential side gear 1i is provided in the differential case 1a and, together with the right differential side gear 1b, defines a pair of side gears. The right differential side gear 1b and the left differential side gear 1i can mesh with four differential pinions 1j.

[0005] When a ball screw shaft 2b is rotated by operation of a motor (e.g., an electric motor) 2a of an actuator 2, a ball screw nut 2c coupled to the ball screw shaft 2b moves along a guide rail 2d. When the ball screw nut 2c moves, a fork 2e integrated with the ball screw nut 2c can move the sleeve 1e in a connecting or disconnecting direction.

[0006] When the separating sleeve 1e is simultaneously engaged with a dog tooth part 1f of the separating shaft 1c and a dog tooth part 1g of the separating hub 1d, an input part (not shown) such as an electric motor or an internal combustion engine and an output part (not shown) such as a vehicle wheel are dynamically connected to each other, so that a four-wheel drive (4WD) can be implemented.

[0007] When the separating sleeve 1e moves toward the separating hub 1d and the dog tooth portion 1f of the separating shaft 1c and the dog tooth portion 1g of the separating hub 1d are disengaged from each other, the power transmission between the input part, such as the electric motor or the internal combustion engine, and the output part, such as the vehicle wheel, is blocked, so that a two-wheel drive (2WD) can be implemented.

[0008] However, in the interrupter device in the related art, the overall length and space (e.g., the space requirement) of the vehicle (e.g., in the vehicle) increase excessively due to the complicated operating structure in which the ball screw shaft, the fork, and the separating sleeve are jointly operated by the operation of the electric motor, and the separating shaft and the separating hub are connected by an operation of the separating sleeve, which causes disadvantages in terms of the weight and mountability of the vehicle (e.g., in the vehicle). Furthermore, in the case of a two-wheel drive implemented by disconnecting an auxiliary drive wheel of a four-wheel drive vehicle, the final gear is stopped because the rotation of the input part is stopped, and a high differential (e.g.,A high speed difference occurs, where the differential pinion is rotated by the high-speed rotation of the left differential side gear when the vehicle travels straight ahead at high speed in the state where the separator shaft and the separator hub are separated. This is why noise and vibration occur. Document of related technologyPatent document

[0009] (Patent Document 1) Korean Patent Application Laid-Open No. 10-2017-0123869 (Published on November 9, 2017) Explanation of the invention

[0010] The present invention has been made in an effort to provide a breaker device (e.g., a disconnecting device) in which a pinion gear can be provided in the breaker device and can mesh with a side gear, and a high differential (e.g., a large speed difference) can be prevented by means of a retainer ring (e.g., a backup ring) that is connected to or disconnected from power (e.g., a power supply, e.g., a power source) by means of a clutch ring.

[0011] The present invention was also made in an effort to provide an interrupter device (e.g., a disconnecting device) capable of improving assembly properties and versatility by modularizing an actuator.

[0012] To achieve the above-mentioned objectives, the present invention provides an interrupter device (e.g., a disconnecting device) comprising: a retaining ring mounted in a housing and having a pinion mounted in the retaining ring and configured to engage (e.g., come into engagement) with a first side gear, wherein the retaining ring has a first claw tooth portion (e.g., a first claw portion, e.g., a first claw clutch portion) provided on (e.g., on) a surface (e.g., of the retaining ring / support ring) facing the first side gear, a clutch ring having a second claw tooth portion (e.g., a second claw portion, e.g., a second claw clutch portion) provided on (e.g., on) a surface (e.g., of the clutch ring) facing the retaining ring, wherein the second claw tooth portion is configured to engage (e.g.,to get into engagement), and a sleeve connected to an actuator and configured to move in an engaged direction (e.g., an engagement direction) or a disengaged direction (e.g., a disengagement direction), wherein the sleeve is connected to the clutch ring and configured to push the clutch ring in a direction toward the retaining ring or pull the clutch ring in a direction opposite to the retaining ring.

[0013] In the case of a four-wheel drive, the sleeve can push the clutch ring in the direction towards the retaining ring to allow the second dog tooth part to engage (e.g., disengage) with the first dog tooth part, and in the case of a two-wheel drive, the sleeve can pull the clutch ring in the direction opposite to the retaining ring to allow the second dog tooth part to separate and disengage from (e.g., disengage) the first dog tooth part.

[0014] The actuator may comprise: a housing, a motor (e.g., an electric motor, e.g., a servo motor) coupled (e.g., connected) to the housing, a ball screw shaft disposed in the housing and rotatably supported on a support member (e.g., support member), the ball screw shaft being connected to the motor, a transmission nut coupled to the ball screw shaft and configured to move along the ball screw shaft while guided by a guide rail mounted in the housing, and a fork integrated with the transmission nut and extending toward the sleeve through an opening portion in the housing, the fork coupled to surround an outer diameter portion of the sleeve.

[0015] A sealing element may be coupled to a coupling surface of the housing to which the motor is coupled.

[0016] The retaining ring may have a through hole provided in an outer diameter portion thereof and a coupling hole formed in the other surface thereof, a coupling pin may be coupled to the pinion while penetrating the through hole, and a fixing pin may be coupled to the coupling pin while penetrating the coupling hole.

[0017] An inner ring may be coupled in the retaining ring, the pinion may be arranged between the retaining ring and the inner ring, and the retaining ring, the pinion and the inner ring may be coupled by means of the coupling pin.

[0018] The coupling ring may have a plurality of leg portions, the housing may have holes corresponding to the leg portions, and the leg portions may be exposed through the holes.

[0019] An outer diameter portion of the leg part may be configured as an inclined surface, and an inner diameter portion of the housing into which the outer diameter portion of the leg part is inserted and with which the outer diameter portion of the leg part is in contact may be configured as an inclined surface.

[0020] The retaining element can be a bearing (e.g. a rolling bearing, e.g. a ball bearing).

[0021] The sealing element can be an O-ring.

[0022] According to the present invention, when the breaker system (e.g., the breaker device) is disengaged and the auxiliary drive wheels are free-running (e.g., rotating without being driven) in the two-wheel drive mode of the vehicle, the retaining ring / support ring that holds (e.g., supports) the differential gear set including the two side gears and the four pinions rotates, which makes it possible to solve the problem of noise caused by a high differential (e.g., a high speed difference) in the related art.

[0023] According to the present invention, the (e.g., electric) current is applied to the motor only when the clutch ring is engaged, which makes it possible to minimize the power consumption.

[0024] According to the present invention, the actuator is modularized, which makes it possible to ensure assembly properties (e.g., mounting properties), simplify repair, and reduce a defect rate (e.g., a failure rate).

[0025] The present invention can significantly reduce the overall length, thereby reducing the weight and significantly improving the package mountability (e.g., mountability).

[0026] The present invention can eliminate a component such as a separating shaft in the related art and reduce the number of components by modularizing the actuator, which offers advantages in terms of spatial characteristics, weight, and cost.

[0027] The present invention can simplify the assembly process by modularizing the actuator.

[0028] According to the present invention, since the actuator is modularized, the actuator can be incorporated into any reduction gear as long as the space for mounting the clutch ring and the retaining ring / support ring is ensured, which makes it possible to reduce the development period and provide high versatility.

[0029] The foregoing explanation is illustrative only and is not intended to be limiting in any way. In addition to the illustrative aspects, embodiments, and features described above, further aspects, embodiments, and features will become apparent by reference to the drawings and the following detailed description. Brief description of the drawings Fig. 1 is a view illustrating a breaker device of the related art. Fig. 2 is a perspective view of the interrupter device according to an exemplary embodiment of the present invention. Fig. 3 is an exploded perspective view of the interrupter device according to the exemplary embodiment of the present invention. Fig. 4 is a cross-sectional side view of the interrupter device according to the exemplary embodiment of the present invention. Fig. 5 is a view illustrating a process in which a retainer ring / backup ring and a clutch ring are engaged with each other according to the exemplary embodiment of the present invention.

[0030] It should be understood that the accompanying drawings are not necessarily to scale and are a somewhat simplified representation of various features illustrative of the basic principles of the invention. The specific design features of the present invention as disclosed herein, including, for example, specific dimensions, orientations, positions, and shapes, will be determined in part by the specific intended application and usage environment.

[0031] In the figures, (like) reference numerals refer to the same or equivalent parts of the present invention throughout the several figures of the drawing. Detailed description

[0032] Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. First, when assigning reference numerals to constituent elements of the respective drawings, it should be noted that the same reference numerals are assigned to the same constituent elements wherever possible, even if the constituent elements are illustrated in different drawings. Furthermore, in the description of the present invention, the specific descriptions of publicly known related configurations or functions are omitted when it is determined that the specific descriptions may obscure the subject matter of the present invention.Furthermore, the exemplary embodiments of the present invention are described below, but the technical content of the present invention is not limited thereto and can of course be modified and variously carried out by a person skilled in the art.

[0033] The present invention can be used in electric vehicles (EVs, battery electric vehicles), internal combustion engine (ICEs), hybrid electric vehicles (HEVs), and the like.

[0034] Fig. 2 is a perspective view of the interrupter device according to an exemplary embodiment of the present invention, Fig. 3 is an exploded perspective view of the interrupter device according to the exemplary embodiment of the present invention, and Fig. 4 is a cross-sectional side view of the interrupter device according to the exemplary embodiment of the present invention.

[0035] As in Fig. 2 to Fig. 4, the present invention includes a retaining ring / backup ring 120 mounted in a housing 110, a clutch ring 130 disposed in the housing 110 and configured to engage the retaining ring / backup ring 120, and a sleeve 150 configured to move the clutch ring 130 in an engaged or disengaged direction (e.g., an engagement or disengagement direction).

[0036] A final gear 190 may be coupled to an outer portion of the housing 110. Power from an input component (not shown), such as an electric motor or an internal combustion engine, may be transmitted through the final gear 190. The power transmitted to the final gear 190 may be transmitted to the housing 110.

[0037] For example, the housing 110 may include a first housing 111 and a second housing 112 coupled to the first housing 111. The first housing 111 and the second housing 112 may be coupled (to each other) by means of a coupling element, such as a screw (e.g., a bolt).

[0038] A pinion gear 143 is mounted in the retaining ring / support ring 120. The pinion gear 143 engages with a pair of first and second side gears 141 and 142. The pinion gear 143 may be provided as a plurality of pinions. For example, four pinions 143 may be mounted in the retaining ring / support ring 120.

[0039] The retaining ring / support ring 120 has a first claw tooth portion (e.g., a first claw portion, e.g., a first claw clutch portion) 121. The first claw tooth portion 121 may be provided on (e.g., on) a surface of the retaining ring / support ring 120 facing the first side gear 141. The first side gear 141 may engage with a second claw tooth portion (e.g., a second claw portion, e.g., a second claw clutch portion) 131 of the clutch ring 130.

[0040] The retaining ring / support ring 120 has a through-hole 122 and a coupling hole 123 (e.g., formed therein). The through-hole 122 is provided in an outer diameter portion of the retaining ring / support ring 120. The coupling hole 123 is formed in the other surface of the retaining ring / support ring 120.

[0041] A coupling pin 160 may be coupled to penetrate a center (e.g., a middle) of the pinion gear 143 through the through-hole 122. A fixing pin 170 may be coupled to penetrate the coupling pin 160 through the coupling hole 123.

[0042] An inner ring 180 can be coupled into the retaining ring / support ring 120. The pinion gear 143 can be arranged between the retaining ring / support ring 120 and the inner ring 180. The retaining ring / support ring 120, the pinion gear 143, and the inner ring 180 can be coupled by means of the coupling pin 160.

[0043] The second claw tooth portion 131 may be provided on (e.g., on) a surface of the clutch ring 130 facing the retaining ring / support ring 120, and the second claw tooth portion 131 may engage with the first claw tooth portion 121. The clutch ring 130 may be moved by means of the sleeve 150.

[0044] The coupling ring 130 and the sleeve 150 can be assembled (e.g., joined) into a single body by screwing or welding and can be rotated together with the housing 110 by being synchronized with the housing 110.

[0045] The coupling ring 130 may have a plurality of leg portions 132. For example, the coupling ring 130 may have four leg portions 132.

[0046] Four holes 111a may be formed in the first housing 111 corresponding to the four leg portions 132. The four leg portions 132 may be exposed through the holes 111a.

[0047] An outer diameter portion of the leg part 132 is inserted (e.g., inserted) into an inner diameter portion of the first housing 111 and assembled (e.g., mounted) therein. The outer diameter portion of the leg part 132 and the inner diameter portion of the first housing 111 may each have an inclined surface S.

[0048] A fork 270 of an actuator 200 may be coupled to an outer diameter portion of the sleeve 150. The sleeve 150 may be moved in the engaged direction or the disengaged direction by actuating the fork 270.

[0049] The sleeve 150 is connected to the coupling ring 130. One end of the sleeve 150 can be inserted (e.g., inserted) into the leg portion 132 of the coupling ring 130 and assembled (e.g., mounted) therein.

[0050] The sleeve 150 can urge the clutch ring 130 in a direction toward the retaining ring / backup ring 120 to allow the second claw tooth portion 131 of the clutch ring 130 to engage / disengage with the first claw tooth portion 121 of the retaining ring / backup ring 120. Alternatively, the sleeve 150 can pull the clutch ring 130 in a direction opposite the retaining ring / backup ring 120 to allow the second claw tooth portion 131 of the clutch ring 130 to separate and disengage from the first claw tooth portion 121 of the retaining ring / backup ring 120.

[0051] Specifically, in the case of four-wheel drive, the clutch ring 130 is pressed toward the retaining ring / support ring 120 by the operation of the sleeve 150, so that the second dog tooth portion 131 engages with the first dog tooth portion 121. In the case of two-wheel drive, the clutch ring 130 is pulled in the direction opposite to the retaining ring / support ring 120 by the operation of the sleeve 150, so that the second dog tooth portion 131, which is engaged with the first dog tooth portion 121, can separate from or disengage from the first dog tooth portion 121.

[0052] The actuator 200 can be modularized by means of a housing 210. The actuator 200 includes: the housing 210, a motor (e.g., electric motor, e.g., servo motor) 220 coupled to the housing 210, a ball screw shaft 230 configured to be rotated by operation of the motor 220, a transmission nut 250 configured to move linearly along the ball screw shaft 230 when the ball screw shaft 230 rotates, and the fork 270 integrated with the transmission nut 250 and configured to move together with the transmission nut 250.

[0053] The housing 210, which unlike a reduction gear (not shown) does not receive (e.g., experience) a high external force, may be made of a lightweight material such as aluminum or engineering plastic, thereby reducing the weight of the reduction gear (e.g., the housing 210).

[0054] The motor 220 can be, for example, a BLDC motor (e.g., a brushless DC motor). The ball screw shaft 230, the transmission nut 250, and the fork 270 are mounted in the housing 210. The ball screw shaft 230 is connected to the motor 220. The ball screw shaft 230 can be rotatably mounted in the housing 210 by means of a support member 240, such as a bearing.

[0055] A transmission power of the fork 270, which is insufficiently provided only by the motor 220, can be amplified and then transmitted by the ball screw shaft 230, which enables precise control.

[0056] The transmission nut 250 is coupled to the ball screw shaft 230. When the ball screw shaft 230 rotates, the transmission nut 250 can move stably while guided by a guide rail 260 mounted in the housing 210.

[0057] The guide rail 260 is penetratingly connected to the transmission nut 250, and two opposite ends of the guide rail 260 are held (e.g., supported) by the housing 210.

[0058] The fork 270 extends toward the sleeve 150 through an opening portion 211 of the housing 210. The fork 270 is coupled to the outer diameter portion of the sleeve 150 and surrounds the outer diameter portion of the sleeve 150.

[0059] The opening portion 211 of the housing 210 may be formed as a space that matches (e.g., is adapted to) a stroke of the fork 270 so that the fork 270 can move smoothly (e.g., without obstruction / interference).

[0060] A sealing element 280, such as an O-ring, may be coupled to the housing 210. The sealing element 280 may be coupled to a coupling surface 212 of the housing 210 to which the motor 220 is coupled.

[0061] The sealing member 280 can prevent liquid or oil mist, which may be generated by a lubricating oil in the reduction gear (not shown), from entering the motor 220.

[0062] Next, an operation in the case of the two-wheel drive of the present invention will be described.

[0063] Fig. 5 is a view illustrating a process in which the retainer ring / backup ring and the coupling ring are engaged with each other according to the exemplary embodiment of the present invention.

[0064] As in Fig. 4 and Fig. As shown in Figure 5, when the ball screw shaft 230 is rotated by the operation of the motor 220, the transmission nut 250 moves rearward (e.g., backward). When the transmission nut 250 moves rearward (e.g., backward), the fork 270 integrated with the transmission nut 250 moves the sleeve 150 rearward (e.g., backward).

[0065] Since the sleeve 150 pulls the clutch ring 130 in the direction opposite to the retaining ring / support ring 120 while moving rearward (e.g., backward), the second dog tooth portion 131 may move away from and disengage from the first dog tooth portion 121. Therefore, two-wheel drive (2WD) may be implemented.

[0066] In the disengaged state, the power of the input component (not shown), such as the electric motor or the internal combustion engine, is blocked. The power of the input component is not transmitted to the final gear 190.

[0067] Two opposite auxiliary drive gears (not shown) run idly (e.g., rotate without being driven), the rotational force of the two opposite auxiliary drive gears can be transmitted to the first side gear 141 and the second side gear 142 so that the first side gear 141 and the second side gear 142 can rotate (for example: When / because two opposite auxiliary drive gears (not shown) run idly (e.g., rotate without being driven), the rotational force of the two opposite auxiliary drive gears can be transmitted to the first side gear 141 and the second side gear 142 so that the first side gear 141 and the second side gear 142 can rotate).

[0068] Because the first side gear 141 and the second side gear 142 are engaged with the pinion 143, the retaining ring / support ring 120 can rotate together with the first side gear 141 and the second side gear 142 when the first side gear 141 and the second side gear 142 rotate (e.g., when they are rotated).

[0069] In this case, since the retaining ring / support ring 120 is separated from the housing 110, only the retaining ring / support ring 120 rotates, but the housing 110 does not rotate. Therefore, two-wheel drive, in which only the main drive wheels drive the vehicle and the auxiliary drive wheels are idle, can be realized.

[0070] Since the electric vehicle operates at high speeds, high differential noise is bound to occur. However, the present invention can solve the problem of high differential noise in the related art because the retaining ring / support ring 120 rotates within the housing 110.

[0071] Next, an operation in the case of the four-wheel drive of the present invention will be described.

[0072] With reference to Fig. 4 and Fig. 5. When the ball screw shaft 230 is rotated by the operation of the motor 220, the transmission nut 250 moves forward (e.g., forward). When the transmission nut 250 moves forward (e.g., forward), the fork 270 integrated with the transmission nut 250 moves the sleeve 150 forward (e.g., forward).

[0073] Since the sleeve 150 pushes the clutch ring 130 toward the retainer / backup ring 120 while moving forward (e.g., forward), the second dog tooth portion 131 of the clutch ring 130 engages the first dog tooth portion 121 of the retainer / backup ring 120. Therefore, four-wheel drive (4WD) can be implemented.

[0074] In the case of four-wheel drive, the power of the input part (not shown), such as the electric motor or the internal combustion engine, can be transmitted to the final gear 190.

[0075] The power of the input part can be transmitted to the housing 110 through the final gear 190. The retaining ring / support ring 120 can rotate because / when the housing 110 rotates. The housing 110 and the retaining ring / support ring 120 are coupled (e.g., to each other) and move together.

[0076] When the retaining ring / support ring 120 rotates, the force is transmitted to both the first and second side gears 141 and 142, which are engaged with the pinion gear 143, so that the first and second side gears 141 and 142 can rotate.

[0077] When the first side gear 141 and the second side gear 142 rotate, the power is transmitted to the two opposite auxiliary drive wheels connected to the first and second side gears 141 and 142 (e.g., in a mating manner), allowing the two opposite auxiliary drive wheels to rotate. Therefore, four-wheel drive can be realized because the power of the input part is transmitted to both the auxiliary drive wheels and the main drive wheels.

[0078] As described above, the exemplary embodiments have been described and illustrated in the drawings and specification. The exemplary embodiments were chosen and described in order to explain certain principles of the invention and their practical application, to thereby enable one skilled in the art to make and use various exemplary embodiments of the present invention, as well as various alternatives and modifications thereof. As is apparent from the foregoing description, certain aspects of the present invention are not limited to the specific details of the examples presented herein, and it is therefore contemplated that other modifications and applications or variations thereof will occur to one skilled in the art.However, many changes, modifications, variations, and other uses and applications of the present design will become apparent to one skilled in the art after considering the specification and the accompanying drawings. All such changes, modifications, variations, and other uses and applications that do not depart from the spirit and scope of the invention are intended to be covered by the invention, which is limited only by the following claims. QUOTES CONTAINED IN THE DESCRIPTION

[0000] This list of documents submitted by the applicant was generated automatically and is included solely for the convenience of the reader. This list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions. Cited patent literature

[0000] KR 1020170123869

[0009]

Claims

[1] Breaker device comprising: a retaining ring (120) mounted in a housing (110) and having a pinion (143) mounted in the retaining ring (120) and adapted to engage with a first side gear (141), the retaining ring (120) having a first claw tooth portion (121) provided on a surface facing the first side gear (141), a coupling ring (130) having a second claw tooth portion (131) provided on a surface facing the retaining ring (120), the second claw tooth portion (131) being adapted to engage with the first claw tooth portion (121), and a sleeve (150) connected to an actuator (200) and configured to move in an engaged direction or a disengaged direction, wherein the sleeve (150) is connected to the clutch ring (130) and is configured to push the clutch ring (130) in a direction toward the retaining ring (120) or pull the clutch ring (130) in a direction opposite to the retaining ring (120). [2] The breaker device according to claim 1, wherein, in the case of a four-wheel drive, the sleeve (150) pushes the clutch ring (130) in the direction toward the retaining ring (120) to allow the second dog tooth portion (131) to engage with the first dog tooth portion (121), and wherein, in the case of a two-wheel drive, the sleeve (150) pulls the clutch ring (130) in the direction opposite to the retaining ring (120) to allow the second dog tooth portion (131) to separate and disengage from the first dog tooth portion (121). [3] The interrupter device according to claim 1 or 2, wherein the actuating device (200) is a modularized device comprising: a housing (210), a motor (220) coupled to the housing (210), a ball screw shaft (230) which is arranged in the housing (210) and which is rotatably held on a holding element (240), wherein the ball screw shaft (230) is connected to the motor (220), a transmission nut (250) coupled to the ball screw shaft (230) and configured to move along the ball screw shaft (230) while being guided by a guide rail (260) mounted in the housing (210), and a fork (270) which is integrated with the transmission nut (250) and which extends towards the sleeve (150) through an opening portion (211) in the housing (210), the fork (270) being coupled to surround an outer diameter portion of the sleeve (150). [4] The interrupter device according to claim 3, wherein a sealing member (280) is coupled to a coupling surface (212) of the housing (210) to which the motor (220) is coupled. [5] The interrupter device according to any one of claims 1 to 4, wherein the retaining ring has a through hole (122) provided in an outer diameter portion thereof and a coupling hole (123) formed in the other surface thereof, a coupling pin (160) is coupled to the pinion (143) while penetrating the through hole (122), and a fixing pin (170) is coupled to the coupling pin (160) while penetrating the coupling hole (123). [6] The interrupter device according to claim 5, wherein an inner ring (180) is coupled in the retaining ring (120), the pinion (143) is arranged between the retaining ring (120) and the inner ring (180), and the retaining ring (120), the pinion (143) and the inner ring (180) are coupled by means of the coupling pin (160). [7] The interrupter device according to any one of claims 1 to 6, wherein the coupling ring (130) has a plurality of leg parts (132), the housing (111) has holes (111a) which correspond to the leg parts (132), and the leg parts (132) are exposed through the holes (111a). [8] The interrupter device according to claim 7, wherein an outer diameter portion of the leg part (132) is configured as an inclined surface (S), and an inner diameter portion of the housing (111) into which the outer diameter portion of the leg part (132) is inserted and with which the outer diameter portion of the leg part (132) is in contact is configured as an inclined surface (S). [9] The interrupter device according to any one of claims 3 to 8, wherein the holding member (240) is a bearing. [10] The interrupter device according to any one of claims 4 to 9, wherein the sealing element (280) is an O-ring.