Circuit breaker conversion signal assembly

Abstract

A circuit breaker conversion signal assembly belongs to the technical field of low-voltage apparatuses. The circuit breaker comprises a shell and a rotating shaft which is arranged in the shell and enables the circuit breaker to be connected or disconnected, and the signal conversion assembly comprises a signal sampling assembly used for converting connection and disconnection signals of the circuit breaker and a transmission assembly arranged between the rotating shaft and the signal sampling assembly. When the rotating shaft rotates, the transmission assembly is pushed to enable the signal sampling assembly to act so as to achieve signal switching, and the signal switching device is characterized in that the transmission assembly comprises a transmission piece and a reset spring, and the reset spring is arranged between the transmission piece and the shell and used for resetting the transmission piece. The device has the advantages that reliable reset of the transmission part is achieved through counter force provided by the reset spring, and the device is ingenious in arrangement, simple and easy to implement.

Description

Technical Field

[0001] The utility model belongs to the technical field of low-voltage electrical appliances, and in particular relates to a circuit breaker conversion signal component. Background Art

[0002] As a derivative and supplement of the circuit breaker function, the circuit breaker accessories add control means and expand the protection function for the circuit breaker, making the circuit breaker more widely applicable. The circuit breaker accessories are mainly divided into internal accessories and external accessories, among which the internal accessories include shunt release, auxiliary switch, etc. The internal accessories of the existing circuit breaker are installed in the accessory cavity of the upper cover, wherein the auxiliary switch displays the on and off states of the circuit breaker when the opening and closing states of the circuit breaker change. The auxiliary push rod on the existing auxiliary switch cooperates with the rotating shaft at one end and cooperates with the auxiliary switch at the other end, and moves with the movement of the rotating shaft. When opening, the auxiliary push rod moves by the push of the rotating shaft, and when resetting, the auxiliary push rod is reset by its own gravity or by the reaction force of the push rod of the auxiliary switch. If the reset is achieved by the auxiliary push rod's own gravity, it may not be reset or stuck. If the reset is achieved by the reaction force of the auxiliary switch, the reaction force of the auxiliary push rod is made very large, which increases the difficulty of manufacturing.

[0003] In view of the above-mentioned prior art, it is necessary to reasonably improve the auxiliary switch structure of the existing circuit breaker to improve its resetting ability. To this end, the applicant has made a useful design, and the technical solution to be introduced below is produced under this background. Utility Model Content

[0004] The task of the utility model is to provide a circuit breaker switching signal component, which realizes reliable resetting of the transmission member through the reaction force provided by the resetting spring, and has an ingenious arrangement and is simple and easy to operate.

[0005] The task of the utility model is accomplished in this way. A circuit breaker conversion signal component, the circuit breaker includes a shell, a rotating shaft arranged in the shell to connect or disconnect the circuit breaker, the conversion signal component includes a signal sampling component for converting the circuit breaker connection and disconnection signals and a transmission component arranged between the rotating shaft and the signal sampling component. When the rotating shaft rotates, the signal sampling component is activated by pushing the transmission component to realize signal switching. The characteristic is that: the transmission component includes a transmission member and a reset spring, and the reset spring is arranged between the transmission member and the shell and is used to reset the transmission member.

[0006] In a specific embodiment of the present invention, the transmission member includes a pair of mounting parts arranged toward the rotating shaft and a driving part connected to the pair of mounting parts and away from one end of the rotating shaft, and the pair of mounting parts are respectively formed with driven parts at one end close to the rotating shaft. The transmission member is slidably installed in the shell through the pair of mounting parts, and the signal sampling component is driven to operate through the driving part. The rotating shaft drives the transmission member to operate by acting on the driven part.

[0007] In another specific embodiment of the utility model, the shell includes an upper cover and a base installed in cooperation with the upper cover, the upper cover is provided with a conversion signal component installation cavity on the front side, and a transmission member installation portion is provided on the side of the conversion signal component installation cavity close to the rotating shaft, the signal sampling component is installed in the conversion signal component installation cavity from top to bottom, the transmission member is installed in the transmission member installation portion from left to right, the base is provided with a rotating shaft installation cavity at a position corresponding to the right side of the transmission member, and the rotating shaft is installed in the rotating shaft installation cavity.

[0008] In another specific embodiment of the present utility model, a pushing part is provided at the position of the driven part on the transmission member corresponding to the rotating shaft, and when the rotating shaft rotates, the pushing part contacts the driven part to push the transmission member to slide.

[0009] In another specific embodiment of the present invention, the return spring includes an arc-shaped spring body and spring legs extending outward from both ends of the spring body.

[0010] In another specific embodiment of the present invention, the spring body is semicircular.

[0011] In a further specific embodiment of the present invention, a supporting portion cooperating with the spring foot is provided on the mounting portion of the transmission member, and two spring feet of the reset spring respectively abut against the supporting portion to reset the transmission member.

[0012] In a further specific embodiment of the present invention, the abutting portion is a slot structure, and the slot is formed by a space between a boss provided on the mounting portion and a bottom below the mounting portion.

[0013] In yet another specific embodiment of the present invention, a fixing portion is provided on the transmission member mounting portion at a position corresponding to the spring body, and the spring body is sleeved on the fixing portion.

[0014] In yet another specific embodiment of the present invention, the signal sampling components may be one group or multiple groups.

[0015] The utility model adopts the above structure and has the beneficial effects: a reset spring is added between the transmission member and the housing, and during the opening process, the rotating shaft pushes the transmission member, and at the same time causes the transmission member to deform the reset spring, and during the closing process, the reaction force of the reset spring resets the transmission member. The structure is simple and easy, and the arrangement is ingenious, which not only avoids the situation of non-reset or jamming in the prior art, but also provides a reliable reset force for the transmission member. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is an exploded schematic diagram of the assembly of the transmission component, the signal sampling component and the housing of the utility model;

[0017] Figure 2 It is a schematic diagram of the assembly of the transmission component, the signal sampling component and the housing of the utility model;

[0018] Figure 3 for Figure 2 A magnified schematic diagram of part A;

[0019] Figure 4 It is a structural schematic diagram of the transmission member of the utility model;

[0020] Figure 5 This is a schematic diagram of the structure of the return spring of the utility model;

[0021] Figure 6 It is a structural schematic diagram of the rotating shaft of the utility model;

[0022] Figure 7 It is a schematic diagram of the structure of the signal component of the utility model when the circuit breaker is connected;

[0023] Figure 8 It is a structural schematic diagram of the signal component of the utility model when the circuit breaker is disconnected.

[0024] In the figure: 1. shell, 11. upper cover, 111. signal conversion component installation cavity, 112. transmission component installation part, 113. fixing part, 12. base, 121. shaft installation cavity; 2. shaft, 21. pushing part; 3. signal sampling component, 31. push rod; 4. transmission component, 41. transmission component, 411. installation part, 4111. driven part, 4112. abutting part, 4113. boss, 4114. bottom, 412. driving part, 42. reset spring, 421. spring body, 422. spring foot; 5a. incoming terminal, 5b. outgoing terminal; 6. operating mechanism; 7. moving contact; 8. static contact. DETAILED DESCRIPTION

[0025] The specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings, but the description of the embodiments is not a limitation of the technical solution. Any changes in form rather than substance based on the concept of the present invention should be regarded as the protection scope of the present invention.

[0026] In the following description, all concepts related to directionality or orientation such as up, down, left, right, front and back are based on the positions shown in the corresponding drawings. They are only used to facilitate the description of the technical solution provided by the utility model and simplify the description in conjunction with the drawings, and therefore cannot be understood as a special limitation on the technical solution provided by the utility model.

[0027] See also Figure 1 The utility model relates to a circuit breaker signal conversion component, the circuit breaker includes a housing 1, an operating mechanism 6 for driving the moving contact 7 to open and close, and a rotating shaft 2 that can drive the moving contact 7 to connect or disconnect with the static contact 8, the moving contact 7 is arranged on the rotating shaft 2, and the static contact 8 is arranged on the housing 1. The signal conversion component described in the utility model includes a signal sampling component 3 for converting the circuit breaker connection and disconnection signals and a transmission component 4 arranged between the rotating shaft 2 and the signal sampling component 3, the transmission component 4 includes a transmission member 41 and a reset spring 42 for resetting the transmission member 41, when the rotating shaft 2 rotates, the signal sampling component 3 is actuated by pushing the transmission member 41 to realize signal switching. The transmission member 41 is slidably arranged in the circuit breaker housing 1, and the above-mentioned signal sampling component 3 is usually called an auxiliary switch. The following is a detailed description through two embodiments: Example 1

[0028] See also Figure 1 , the circuit breaker further includes an incoming terminal 5a and an outgoing terminal 5b, and the sliding direction of the transmission member 41 is substantially parallel to the line connecting the incoming terminal 5a and the outgoing terminal 5b. The incoming terminal 5a and the outgoing terminal 5b of the circuit breaker are both flat plate structures and are in the same horizontal direction. At this time, the sliding direction of the transmission member 41 is parallel to the line connecting the incoming terminal 5a and the outgoing terminal 5b. However, when the circuit breaker needs to have a slight difference in thickness between the incoming terminal 5a or the outgoing terminal 5b due to special reasons, the incoming terminal 5a or the outgoing terminal 5b will also have a certain height difference after installation, and the line connecting the two will also have a slight angle relative to the horizontal direction. At this time, the sliding direction of the transmission member 41 is substantially parallel to the line due to the slight angle.

[0029] Please continue reading Figure 1 Combined with Figure 2 Figure 3The housing 1 includes an upper cover 11 and a base 12 mounted in cooperation with the upper cover 11, and also includes a face cover (not shown in the figure) mounted on the upper cover 11. The operating mechanism 6 is mounted in the middle of the cavity formed by the upper cover 11 and the base 12. The upper cover 11 is provided with a conversion signal component installation cavity 111 on the front side close to the operating mechanism 6, and a transmission component installation portion 112 is provided on the side of the conversion signal component installation cavity 111 close to the rotating shaft 2. The signal sampling component 3 is installed in the conversion signal component installation cavity 111 from top to bottom, and the transmission component 41 is installed in the transmission component installation portion 112 from left to right. The reset spring 42 is installed between the transmission component 41 and a fixing portion 113 arranged above the transmission component installation portion 112. The face cover covers the upper part of the upper cover 11, and opens or closes the conversion signal component installation cavity 111 and the transmission component installation portion 112. The face cover can be an integral structure or a split structure. The base 12 is provided with a shaft installation cavity 121 at a position corresponding to the right side of the transmission member 41, and the shaft 2 is installed in the shaft installation cavity 121. The outlet terminal 5b and the inlet terminal 5a are respectively arranged at the left and right ends of the front side of the base 12 and are parallel to the upper surface of the upper cover 11. Since the transmission member 41 is installed on the upper cover 11, when the circuit breaker is in the closed or open position, the position state of the transmission member 41 can be clearly observed by opening the circuit breaker cover.

[0030] See also Figures 4 to 8 Combined with Figure 1 The transmission assembly 4 includes a transmission member 41 and a reset spring 42 installed between the transmission member 41 and the housing 1 for resetting the transmission member 41. The transmission member 41 includes a pair of mounting portions 411 disposed toward the rotating shaft 2 and a driving portion 412 connected to the pair of mounting portions 411 and away from one end of the rotating shaft 2. The pair of mounting portions 411 are respectively formed with driven portions 4111 at one end close to the rotating shaft 2. The transmission member 41 is slidably mounted in the housing 1 through the pair of mounting portions 411, and the signal sampling assembly 3 is driven to move through the driving portion 412. The rotating shaft 2 drives the transmission member 41 to move by acting on the driven portion 4111. At the same time, the transmission member 41 is reset by the reaction force of the reset spring 42 disposed between the transmission member 41 and the housing 1.

[0031] Specifically, the driving part 21 is provided at the position of the driven part 4111 on the rotating shaft 2 corresponding to the transmission member 41. When the rotating shaft 2 rotates, the driving part 21 contacts the driven part 4111 to push the transmission member 41 to slide. The driving part 21 can be a wedge-shaped, semicircular or other structure. Preferably, the driving part 21 is a wedge-shaped structure.

[0032] Specifically, the reset spring 42 includes an arc-shaped spring body 421 and spring feet 422 extending outward from both ends of the spring body 421. In this embodiment, the spring body 421 is preferably semicircular. The mounting portion 411 is provided with abutting portions 4112 cooperating with the spring feet 422. The transmission member mounting portion 112 is provided with a fixing portion 113 at a position corresponding to the spring body 421. The spring body 421 is sleeved on the fixing portion 113. The two spring feet 422 of the reset spring 42 are respectively against the abutting portions 4112. When the reset spring 42 is installed in place, under the action of the spring force, the transmission member 41 has a tendency to move toward the direction of the rotating shaft 2. Specifically, the abutting portion 4112 is a slot structure, and the slot is formed by the space between the boss 4113 provided on the mounting portion 411 and the bottom 4114 below the mounting portion 411.

[0033] Continue reading Figure 7 Combined with Figure 3 , Figure 4 , Figure 5 When the circuit breaker rotates from the closed position to the open position, the shaft 2 rotates driven by the operating mechanism 6. Figure 7 The driving part 4111 on the transmission member 41 is then pushed to slide in the direction of the signal sampling component 3 by the push part 21, and the driving part 412 on the transmission member 41 pushes the push rod 31 on the signal collection component 3 to rotate. At the same time, the reset spring 42 is bent under the action of the transmission member 41, generating a reaction force in the direction of the rotating shaft 2. When the switch is fully opened, the moving contact 7 on the rotating shaft 2 and the static contact 8 on the base 12 are fully opened, so that the circuit breaker is in the disconnected position. At this time, the signal sampling component 3 outputs the disconnection status information of the circuit breaker.

[0034] Continue reading Figure 8 Combined with Figure 3 , Figure 4 , Figure 5 When the circuit breaker moves from the open position to the closed position, the shaft 2 rotates under the drive of the operating mechanism 6. Figure 8 The push rod 31 on the signal sampling assembly 3 rotates and pushes the transmission member 41 to slide in the direction of the shaft 2. When the switch is fully closed, the moving contact 7 and the static contact 8 are closed, so that the circuit breaker is in the closed position. At this time, the pushing part 21 on the shaft 2 is separated from the driven part 4111 on the transmission member 41. At this time, under the reaction force of the reset spring 42, the transmission member 41 moves in the direction of the shaft 2 and quickly resets.

[0035] Furthermore, the signal sampling assembly 3 can be one or more groups, and the signal sampling assembly 3 can be set according to the requirements of the circuit breaker and can be installed in the left and / or right accessory chamber of the circuit breaker. In addition, the signal sampling assembly 3 can also be installed on other covers or housings connected to the upper cover 11. Example 2

[0036] The sliding direction of the transmission assembly 4 in the first embodiment is substantially parallel to the line connecting the incoming terminal 5a and the outgoing terminal 5b, while the sliding direction of the transmission assembly in this embodiment is substantially perpendicular to the line connecting the incoming terminal 5a and the outgoing terminal 5b. Figure 1 As shown, the housing of the circuit breaker in this embodiment includes an upper cover and a base installed in cooperation with the upper cover, and also includes a face cover installed on the upper cover, and the operating mechanism is installed in the middle of the cavity formed by the upper cover and the base. The upper cover is provided with a conversion signal component installation cavity on one side close to the operating mechanism, the rotating shaft is arranged below the conversion signal component installation cavity, the transmission component is slidably installed between the rotating shaft and the signal sampling component, and the sliding direction of the transmission component is substantially perpendicular to the connection line between the incoming terminal 5a and the outgoing terminal 5b. When the circuit breaker rotates from the closing position to the opening position, the rotating shaft rotates driven by the operating mechanism, the rotating shaft rotates to push the transmission member to move upward, and the transmission member pushes the push rod of the signal acquisition component to rotate. At the same time, the reset spring bends under the action of the transmission member to generate a reaction force in the direction of the rotating shaft. When the opening is fully in place, the moving contact arranged on the rotating shaft and the static contact arranged on the base are fully opened, so that the circuit breaker is in the disconnected position. At this time, the signal sampling component outputs the disconnection state information of the circuit breaker. When the circuit breaker moves from the open position to the closed position, the shaft rotates driven by the operating mechanism, and the transmission member slides toward the shaft and quickly resets under the reaction force of the reset spring, the reaction force of the push rod of the signal sampling component and its own gravity.

Claims

1. A circuit breaker signal conversion component, the circuit breaker comprising a housing (1), a rotating shaft (2) arranged in the housing (1) to switch the circuit breaker on or off, the signal conversion component comprising a signal sampling component (3) for switching the circuit breaker on and off signals, and a transmission component (4) arranged between the rotating shaft (2) and the signal sampling component (3), the rotating shaft (2) pushing the transmission component (4) to activate the signal sampling component (3) to achieve signal switching when the rotating shaft (2) rotates, characterized in that: The transmission assembly (4) comprises a transmission member (41) and a reset spring (42); the reset spring (42) is arranged between the transmission member (41) and the housing (1) and is used to reset the transmission member (41).

2. A circuit breaker conversion signal component according to claim 1, characterized in that: The transmission member (41) comprises a pair of mounting portions (411) arranged toward the rotating shaft (2) and a driving portion (412) connected to the pair of mounting portions (411) and away from one end of the rotating shaft (2), and the pair of mounting portions (411) are respectively formed with driven portions (4111) at one end close to the rotating shaft (2). The transmission member (41) is slidably mounted in the housing (1) via the pair of mounting portions (411), and drives the signal sampling component (3) to operate via the driving portion (412), and the rotating shaft (2) drives the transmission member (41) to operate by acting on the driven portion (4111).

3. A circuit breaker conversion signal component according to claim 2, characterized in that: The housing (1) comprises an upper cover (11) and a base (12) mounted in cooperation with the upper cover (11); the upper cover (11) is provided with a signal conversion component installation cavity (111) on the front side, and a transmission component installation portion (112) is provided on a side of the signal conversion component installation cavity (111) close to the rotating shaft (2); the signal sampling component (3) is installed in the signal conversion component installation cavity (111) from top to bottom; the transmission component (41) is installed in the transmission component installation portion (112) from left to right; the base (12) is provided with a rotating shaft installation cavity (121) at a position corresponding to the right side of the transmission component (41); the rotating shaft (2) is installed in the rotating shaft installation cavity (121).

4. A circuit breaker conversion signal component according to claim 2, characterized in that: A pushing portion (21) is provided at a position of the driven portion (4111) on the rotating shaft (2) corresponding to the transmission member (41); when the rotating shaft (2) rotates, the pushing portion (21) contacts the driven portion (4111) to push the transmission member (41) to slide.

5. A circuit breaker conversion signal component according to claim 3, characterized in that: The return spring (42) comprises an arc-shaped spring body (421) and spring legs (422) extending outward from both ends of the spring body (421).

6. A circuit breaker conversion signal assembly according to claim 5, characterized in that: The spring body (421) is semicircular.

7. A circuit breaker conversion signal assembly according to claim 5, characterized in that: The mounting portion (411) of the transmission member (41) is provided with a supporting portion (4112) matched with the spring foot (422), and the two spring feet (422) of the reset spring (42) respectively abut against the supporting portion (4112) to reset the transmission member (41).

8. A circuit breaker switching signal assembly according to claim 7, characterized in that: The abutting portion (4112) is a slot structure, and the slot is formed by the space between a boss (4113) arranged on the mounting portion (411) and a bottom (4114) below the mounting portion (411).

9. A circuit breaker conversion signal assembly according to claim 5, characterized in that: A fixing portion (113) is provided on the transmission member mounting portion (112) at a position corresponding to the spring body (421), and the spring body (421) is sleeved on the fixing portion (113).

10. The circuit breaker switching signal component according to claim 1, characterized in that: The signal sampling components (3) may be one group or multiple groups.

Images