Power receiving and distribution equipment
Patent Information
- Application Number
- TW114127121
- Authority / Receiving Office
- TW · TW
- Patent Type
- Applications
- Current Assignee / Owner
- Priority Date
- 2025-03-03
- Filing Date
- 2025-07-17
- Publication Date
- 2026-09-16
- Estimated Expiration
- 2045-07-16
AI Technical Summary
Existing power distribution devices face issues with large storage requirements, unsafe handling due to sharp corners, and the need for excessive force during insertion and withdrawal, often leading to component damage.
A power distribution device with a straight-handled design featuring separate fulcrum holes and a bearing member with a notch, allowing for easy positioning and safe handling, reducing storage space, and optimizing force application during insertion and withdrawal.
The solution enables easy positioning of the handle, safe handling, and efficient use of force, minimizing storage space while preventing component damage and reducing the need for excessive force.
Smart Images
Figure TWG2TA001076202_001 
Figure TWG2TA001076202_002 
Figure TWG2TA001076202_003
Abstract
Description
Technical Field
[0001] This invention relates to power distribution equipment. Prior Technology
[0002] Factories, buildings, and other similar structures often employ numerous circuit breakers and breaker devices as power distribution equipment. These devices require regular maintenance and inspection. For example, to perform regular inspections of breaker devices, it is necessary to disconnect the breaker from the busbar and pull the breaker body to a safe location for inspection.
[0003] For example, Patent Document 1 proposed a power distribution device that uses a handle specifically designed to pull the circuit breaker body out of the cradle (base) and employs the lever principle for pulling it out. This power distribution device can perform both the insertion and withdrawal of the circuit breaker in a single action.
[0004] The power distribution device described in Patent Document 1 has a hole for inserting the handle in the bearing member that serves as the point of action when operating the handle, and a hole for inserting the handle is also provided in the locking plate that serves as the fulcrum of the handle. Furthermore, the central part of the handle is bent into an L-shape in an attempt to simultaneously solve the following problems A and B. A: When the power distribution equipment is inserted into the bracket, there is a risk that the operator's hand, which is holding the handle, may come into contact with the front panel of the equipment or be caught. B: During the insertion of the receiving equipment, because the movable side contact of the receiving equipment body needs to engage with the fixed side terminal of the bracket, a force greater than the engaging force is required for the insertion and withdrawal of the receiving equipment. Because the handle moves in an arc around the hole in the locking plate (fulcrum), when the direction of the force (line of action of the force) applied by the handle (force application point) to the bearing (point of action) deviates from the direction of travel of the circuit breaker (horizontal), not only will excessive force be required because the force no longer acts in the direction of travel of the circuit breaker, but the damage to the constituent components will also increase because the force acts in a direction orthogonal to the direction of travel of the circuit breaker (vertical direction). [Previous Technical Documents] [Patent Literature]
[0005] [Patent Document 1] Japanese Patent Application Publication No. 2008-113525 Summary of the Invention
[0006] [The problem that the invention aims to solve] Furthermore, the L-shaped handle disclosed in Patent Document 1 has the following issues. First, because the handle is L-shaped, it requires a large storage space and has poor storage performance. Secondly, if the handle has a cylindrical cross-sectional shape, there must be another guiding means to ensure that the direction of rotation of the handle is consistent with the direction of insertion and withdrawal of the power distribution equipment. Furthermore, if the handle has a rectangular cross-section, the handle part has sharp corners, which will put a strain on the operator's fingers and make the grip feel unpleasant.
[0007] In terms of shape that is easy to store, requires no positioning, and has a safe handle, one can think of a handle with a cylindrical cross-section and a straight length. However, if a handle with a cylindrical straight shape using traditional technology is directly adopted, it is difficult to solve the above problems A and B at the same time.
[0008] The present invention discloses a technology for solving the problems mentioned above, and aims to provide a power distribution device that does not require positioning when the power distribution device body is inserted into or pulled out of the bracket, and has a safe handle and good storage. [Methods for solving problems]
[0009] The power receiving and distribution equipment of the present invention includes: The bracket; and the main body of the power distribution equipment, are mounted on the aforementioned bracket and are movable between an operating position connected to the busbar and a test position disconnected from the busbar. Assuming the aforementioned power distribution equipment moves in the X direction, the aforementioned operating position is the X- side, and the aforementioned test position is the X+ side, The base plate of the aforementioned bracket is equipped with: The fulcrum hole is used to allow one end of the handle to be inserted as a fulcrum when the aforementioned power distribution equipment body is to be moved between the aforementioned operating position and the aforementioned test position. The aforementioned power distribution equipment system includes: a bearing member that protrudes towards the X+ side and serves as the point of application for the aforementioned handle when the power distribution equipment body needs to be moved. The aforementioned load-bearing component has the following features: The handle insertion hole serves as the point of action for the handle when the aforementioned power distribution equipment body is moved from the aforementioned operating position to the aforementioned test position; and The notch is located on the X+ side of the aforementioned handle insertion hole and is recessed towards the X- side. It serves as the point of action of the aforementioned handle when the aforementioned power distribution equipment body is to be moved from the aforementioned test position to the aforementioned operating position. [The effects of the invention]
[0010] According to the power distribution equipment of the present invention, a power distribution equipment is provided that allows for easy positioning of the handle, safe handling, and good storage when the power distribution equipment body is inserted or pulled out. Simple Explanation of the Diagram
[0011] Figure 1 is a perspective view of the interrupter in Embodiment 1. Figure 2 is a perspective view of the bracket of the circuit breaker in Embodiment 1 and the fixing frame installed on the bracket. Figure 3A is a view of Figure 2 from the Z+ side, and Figure 3B is an enlarged view of the main part of the base plate of the bracket. Figure 4A is a top view of the circuit breaker body, and Figure 4B is an enlarged view of the main parts of Figure 4A, showing the bearing component 21. Figure 5A is a front view of the circuit breaker with a handle attached to move the circuit breaker body from the test position to the operating position. Figure 5B is a side view of the circuit breaker with a handle attached to move the circuit breaker body from the test position to the operating position, viewed from the Y direction. Figure 5C is a top view of the circuit breaker with a handle attached to move the circuit breaker body from the test position to the operating position. Figure 5D is an enlarged cross-sectional view of the main part of Figure 5B. Figure 6A is a front view of the circuit breaker with the handle after it has been moved to the operating position, viewed from the X+ side. Figure 6B is a side view of the circuit breaker with the handle after it has been moved to the operating position, viewed from the Y direction. Figure 6C is a top view of the circuit breaker with the handle after it has been moved to the operating position. Figure 6D is an enlarged cross-sectional view of the main part of Figure 6B. Figure 7A is a front view of the circuit breaker with a handle attached to move the circuit breaker body from the operating position to the test position, viewed from the X+ side. Figure 7B is a side view of the circuit breaker with a handle attached to move the circuit breaker body from the operating position to the test position, viewed from the Y direction. Figure 7C is a top view of the circuit breaker with a handle attached to move the circuit breaker body from the operating position to the test position. Figure 7D is an enlarged cross-sectional view of the main part of Figure 7B. Figure 8A is a front view of the circuit breaker with the handle after it has been moved to the test position, viewed from the X+ side. Figure 8B is a side view of the circuit breaker with the handle 40 after it has been moved to the test position, viewed from the Y direction. Figure 8C is a top view of the circuit breaker with the handle after it has been moved to the test position. Figure 8D is an enlarged cross-sectional view of the main part of Figure 8B. Figure 9A shows a poor example of the positional relationship between the fulcrum hole and the bearing member, while Figure 9B shows a good example of the positional relationship between the fulcrum hole and the bearing member. Figure 10A is an enlarged view of the main part of the circuit breaker body in the test position, with the handle attached, to be moved to the operating position. Figure 10B is an enlarged view of the main part of the circuit breaker body in the operating position, with the handle attached, to be moved to the test position. Figure 11A shows a cross-sectional view of the main parts of a variation of the handle, and Figure 11B shows a cross-sectional view of the main parts of a usage example of the handle. Figure 12A is a plan view of the bracket and fixing frame in embodiment 2, and Figure 12B is an enlarged view of the main part of the base plate of the bracket. Figure 13A is a cross-sectional view of the main part of the circuit breaker with a handle attached so that the circuit breaker body in the test position can be moved to the operating position. Figure 13B is a cross-sectional view of the main part of the circuit breaker with the handle attached after it has been moved to the operating position. Figure 14A is a cross-sectional view of the main part of the circuit breaker with the handle 40 attached so that the circuit breaker body in the operating position can be moved to the test position. Figure 14B is a cross-sectional view of the main part of the circuit breaker with the handle attached after it has been moved to the test position. Implementation
[0012] Implementation type 1. The following diagram illustrates the circuit breaker (power distribution equipment) of implementation type 1. Figure 1 is a perspective view of the interrupter 100 in Embodiment 1. Figure 2 is a perspective view of the bracket 10 of the circuit breaker 100 and the fixing frame 30 installed on the bracket 10. Figure 3A is a view of Figure 2 from the Z+ side. Figure 3 is an enlarged view of the main part of the base plate 11 of the B-series bracket 10. Figure 4A shows the top view of the interruptor body 20. Figure 4B is an enlarged view of the main part of Figure 4A, showing the bearing component 21. In the following description, the direction of movement of the circuit breaker body 20 (the power distribution equipment body 20) is defined as the X direction, the operating position side where the circuit breaker body is connected to the busbar for operation is defined as the X- side, and the test position side where the circuit breaker body is disconnected from the busbar for testing is defined as the X+ side.
[0013] Furthermore, the left-right direction when viewing the interruptor 100 from the X+ side is defined as the Y direction, the up-down direction as the Z direction, the top as the Z+ side, and the bottom as the Z- side. The X+ side of the interruptor 100 shown in Figure 1 is the front (front view).
[0014] In addition, when this specification mentions storing the circuit breaker body 20, it means that the circuit breaker body 20 is inserted into the innermost part of the bracket 10, so that the movable side terminal 22 of the circuit breaker body 20 is electrically connected to the fixed side terminal 31 of the fixed frame 30.
[0015] In this manual, when it is said that the circuit breaker body 20 is pulled out to the test position, it means that the circuit breaker body 20 is moved in the X+ direction to the position where the electrical connection between the movable side terminal 22 of the circuit breaker body 20 and the fixed side terminal 31 of the fixed frame 30 is released. It does not mean that the circuit breaker body 20 is completely pulled out from the bracket 10.
[0016] The circuit breaker 100 includes: a bracket 10; a circuit breaker body 20 mounted on the bracket 10, which can be inserted into the operating position and pulled out (moved) to the test position; and a fixing frame 30 connected to the X-side end of the bracket 10 and upright in the Z+ direction.
[0017] The bracket 10 is a base for housing the circuit breaker body 20, as shown in Figure 3A. It has a base plate 11 and wheel guide rails 12 arranged on both sides of the base plate 11 in the Y direction along the X direction. As shown in Figure 4A, wheels T are installed at the four corners of the circuit breaker body 20. Each wheel T is guided on the wheel guide rails 12 of the bracket 10, so the circuit breaker body 20 can be inserted into the operating position and pulled out to the test position in the X direction on the bracket 10.
[0018] The fixed frame 30 has two sets of fixed-side terminals 31, each set consisting of three terminals. One set of fixed-side terminals 31 is connected to the three-phase busbar connected to the system, and the other set is connected to the three-phase busbar supplying power to the facility.
[0019] Figure 1 shows the state after the circuit breaker body 20 is inserted into the operating position on the bracket 10. The circuit breaker body 20 has two sets of movable side terminals 22, each set consisting of three terminals. One set is for three-phase input terminals, and the other set is for three-phase output terminals. Each movable side terminal 22 has a contact 22S. When the circuit breaker body 20 is pushed in and inserted into the operating position shown in Figure 1, each contact 22S clamps the fixed side terminal 31 by pressing it from above and below, thus electrically connecting the fixed side terminal 31 and the movable side terminal 22. The contact 22S is equipped with a spring, etc., which maintains sufficient contact pressure between the contact 22S and the fixed side terminal 31 when engaging, so as to suppress the contact resistance value to a low level. Therefore, an external force greater than the spring must be applied when the two sides engage.
[0020] Figure 5A shows a front view of the circuit breaker 100 with the handle 40 attached in order to move the circuit breaker body 20 from the test position to the operating position. It is a view from the X+ side. Figure 5B shows a side view of the circuit breaker 100 with the handle 40 attached in order to move the circuit breaker body 20 from the test position to the operating position. It is a view taken from the Y direction. Figure 5C shows a top view of the circuit breaker 100 with the handle 40 attached in order to move the circuit breaker body 20 from the test position to the operating position. Figure 5D is an enlarged cross-sectional view of the main part of Figure 5B. Figure 6A shows a front view of the circuit breaker 100 with the handle 40 installed after it has been moved to the operating position, viewed from the X+ side. Figure 6B is a side view showing the state of the circuit breaker 100 with the handle 40 after it has been moved to the operating position, viewed from the Y direction. Figure 6C is a top view showing the state of the circuit breaker 100 with handle 40 after it has been moved to the operating position. Figure 6D is an enlarged cross-sectional view of the main part of Figure 6B.
[0021] As shown in Figures 1, 3A, and 3B, the base plate 11 of the bracket 10 includes a fulcrum hole H1 (first fulcrum hole) and a fulcrum hole H2 (second fulcrum hole) for inserting one end of the handle 40 as a fulcrum when moving the circuit breaker body 20 between an operating position where it is inserted and connected to the busbar and a test position where it is pulled out from the busbar. The fulcrum holes H1 and H2 are arranged in the X direction at the center of the base plate 11 in the Y direction. The fulcrum hole H1, located on the X+ side, is used when moving the circuit breaker body 20 from the test position to the operating position. When the circuit breaker body 20 is in the test position, the axles TG of the two wheels T on the X+ side of the circuit breaker body 20 are located at position X1 as shown in Figure 5D.
[0022] The pivot hole H2 on the X-side is used to move the circuit breaker body 20 from the operating position to the test position. When the circuit breaker body 20 is in the operating position, the axle TG of the two wheels T on the X+ side of the circuit breaker body 20 is located at position X2 as shown in Figure 6D.
[0023] As shown in Figures 1, 4A, and 4B, the circuit breaker body 20 includes a support member 21, which protrudes from the front surface 20F toward the X+ side and serves as the point of application for the handle 40 during the retraction and extension of the circuit breaker body 20. The support member 21 includes: a handle insertion hole 21H, which serves as the point of application for the force applied to the handle 40 when the circuit breaker body 20 is moved from the operating position to the test position; and a notch 21K, which serves as the point of application for the force applied to the handle 40 when the circuit breaker body 20 is moved from the test position to the operating position and engages with the side of the handle 40 further toward the Z+ side than the fulcrum hole H1. The notch 21K is located on the X+ side of the handle insertion hole 21H and is recessed toward the X- side.
[0024] Next, the specific insertion method of the circuit breaker body 20 will be explained, that is, the method of moving the circuit breaker body from the test position to the operating position. When the circuit breaker body 20 moves from the test position to the operating position, the axle TG system of the two wheels T on the X+ side of the circuit breaker body 20 moves from position X1 to position X2.
[0025] As shown in Figures 5A to 5D, at the test position, the front end 41 of a straight handle 40 with a circular cross-section orthogonal to the length direction is inserted into the fulcrum hole H1 located on the front side of the base plate 11. Next, the operator positions the handle 40 between the handle 42 and the front end 41, so that the side of the handle 40 abuts against the notch 21K of the bearing member 21.
[0026] Next, push the handle 42 towards the X-side. Using the lever principle with the handle 42 as the point of force application, the front end 41 as the fulcrum, and the notch 21K of the bearing member 21 as the point of action, the circuit breaker body 20 is moved in the X- direction. In this way, the contact 22S of the movable side terminal 22 of the circuit breaker body 20 will contact the fixed side terminal 31. Here, by pressing the handle further towards the X-side, the contact 22S is engaged with the fixed side terminal 31. At this time, the position of the circuit breaker body 20 is the operating position shown in Figures 6A to 6D. As described above, when moving the circuit breaker body 20 from the test position to the operating position, the notch 21K of the bearing member 21 and the fulcrum hole H1 of the base plate 11 are used.
[0027] Next, the specific method of pulling out the circuit breaker body 20 will be explained, that is, the method of moving the circuit breaker body from the operating position to the test position. When the circuit breaker body 20 moves from the operating position to the test position, the axle TG system of the two wheels T on the X+ side of the circuit breaker body 20 moves from position X2 to position X1.
[0028] Figure 7A shows a front view of the circuit breaker 100 with the handle 40 attached in order to move the circuit breaker body 20 from the operating position to the test position. It is a view taken from the X+ side. Figure 7B is a side view of the circuit breaker 100 with the handle 40 attached in order to move the circuit breaker body 20 from the operating position to the test position. It is a view taken from the Y direction. Figure 7C shows a top view of the circuit breaker 100 with the handle 40 attached in order to move the circuit breaker body 20 from the operating position to the test position. Figure 7D is an enlarged cross-sectional view of the main part of Figure 7B. Figure 8A shows a front view of the interruptor 100 with handle 40 installed after it has been moved to the test position, viewed from the X+ side. Figure 8B is a side view showing the state of the interrupter 100 with the handle 40 after it has been moved to the test position, viewed from the Y direction. Figure 8C is a top view showing the state of the interrupter 100 with handle 40 after it has been moved to the test position. Figure 8D is an enlarged cross-sectional view of the main part of Figure 8B.
[0029] As shown in Figures 7A to 7D, in the operating position, the operator inserts the handle 40 through the handle insertion hole 21H of the bearing member 21 of the interrupter body 20, and inserts the front end 41 into the fulcrum hole H2 located on the X-side of the base plate 11.
[0030] Next, pull the handle 42 towards the X+ side. Utilizing the lever principle—with the handle 42 as the point of force, the front end 41 as the fulcrum, and the inner surface 21HF of the X+ side of the handle insertion hole 21H of the support member 21 as the point of action—the circuit breaker body 20 moves in the X+ direction. This causes the contact 22S of the movable side terminal 22 of the circuit breaker body 20 to disengage from the fixed side terminal 31. Here, by further pulling the handle towards the X+ side, the contact 22S completely disengages from the fixed side terminal 31. The position of the circuit breaker body 20 at this time is the test position shown in Figures 8A to 8D. This position is the same as that shown in Figures 5A to 5D. As described above, when moving the circuit breaker body 20 from the operating position to the test position, the handle insertion hole 21H of the support member 21 and the fulcrum hole H2 of the base plate 11 are used.
[0031] Figure 9A shows a defective example of the positional relationship between the fulcrum hole h and the bearing member 21. Figure 9B is a good example of the positional relationship between the fulcrum hole h and the bearing member 21. When the fulcrum hole h and the bearing member 21 are positioned as shown in Figure 9A, the line of action of the force acting on the point of application will be as indicated by arrow B1. Part of the force applied to the handle 40 will be distributed to the force needed to lift the circuit breaker body. In reality, the circuit breaker body cannot be lifted, so the operator will need to apply excessive force. On the other hand, when the fulcrum hole h and the bearing member 21 are positioned as shown in Figure 9B, the line of action of the force acting on the point of application will be as indicated by arrow B2. This allows most of the force applied by the operator to the handle 40 to be utilized for the movement of the circuit breaker body 20.
[0032] Figure 10A is a magnified view of the main part of the state in which the circuit breaker body 20 in the test position is moved to the operating position with the handle 40 attached, showing the ideal operating angle of the handle when the circuit breaker body 20 is inserted into the operating position. Figure 10B is an enlarged view of the main part of the circuit breaker body 20 in the operating position with the handle 40 attached, showing the ideal operating angle of the handle when the circuit breaker body 20 is pulled out to the test position. As described above, the pivot hole H1 on the X+ side is used when moving (inserting) the circuit breaker body from the test position to the operating position, and the pivot hole H2 on the X- side is used when moving (pulling out) the circuit breaker body from the operating position to the test position.
[0033] As shown in Figure 10A, when the interrupter body 20 is inserted, with the front surface 20F of the interrupter body 20 set to 0 degrees (vertical direction), the handle 40 rotates relative to the front surface 20F within a range of 30 degrees to the X+ side and 15 degrees to the X- side. Additionally, as shown in Figure 10B, when the interrupter body 20 is pulled out, with the front surface 20F of the interrupter body 20 set to 0 degrees (vertical direction), the handle 40 rotates relative to the front surface 20F within a range of 30 degrees to the X+ side and 15 degrees to the X- side.
[0034] As described above, by using fulcrum holes H1 and H2 separately when inserting and pulling out the interrupter body 20, the operator can operate the handle 40 at the most suitable handle angle that can effectively utilize the applied force in any situation during insertion and pulling out.
[0035] Figure 11A is a cross-sectional view of the main part of handle 40B, which is a variation of handle 40. Figure 11B is a cross-sectional view of the main parts of the handle 40B in use. The handle 40B has a step portion 40D at at least one end, whose diameter decreases until the front end 41. This step portion 40D can be engaged with the edge of the fulcrum hole H1 and the fulcrum hole H2. Using this step portion 40D, the operator can easily position the handle 40B in the Z direction.
[0036] The step portion 40D is provided at both ends of the handle 40B along its length, and a handle holding portion 25, as shown in FIG1, is provided on the front surface 20F of the interrupter body 20 to hold each step portion 40D from below. This allows the handle 40B to be stored without taking up space when it is always in use. Although a handle holding portion that can hold the handle 40D as described earlier could also be provided, the handle holding portion 25 that holds each step portion 40D from below prevents the handle 40B from falling off the handle holding portion 25 in the Y direction when stored.
[0037] Furthermore, although the handle shape is described above as a straight line, it can also be a shape that includes a cone shape in one part and a slit shape in another part. In addition, although examples of handles 40 and 40B with a circular cross-sectional shape perpendicular to the length direction are shown, cases with elliptical or rectangular cross-sections are also applicable.
[0038] Furthermore, although this embodiment uses the circuit breaker 100 as an example of a power distribution device, it is also applicable to power distribution devices such as transformers and circuit breakers that need to be moved between the operating position and the test position during periodic inspections.
[0039] According to the interrupter 100 of implementation type 1, A power distribution device includes: a bracket; and a power distribution device body, which is mounted on the bracket and movable between an operating position connected to a busbar and a test position disconnected from the busbar. Furthermore, when the moving direction of the aforementioned power distribution equipment body is defined as the X direction, the aforementioned operating position side is defined as the X- side, and the aforementioned test position side is defined as the X+ side, The base plate of the aforementioned bracket has: The fulcrum hole is used to allow one end of the handle to be inserted as a fulcrum when the aforementioned power distribution equipment body is to be moved between the aforementioned operating position and the aforementioned test position. The aforementioned power receiving equipment body includes: a bearing member that protrudes towards the X+ side and serves as the point of application for the aforementioned handle when the aforementioned power receiving equipment body needs to be moved. The aforementioned load-bearing component has the following features: The handle insertion hole serves as the point of action for the handle when the aforementioned power distribution equipment body is moved from the aforementioned operating position to the aforementioned test position; and The notch is located on the X+ side of the aforementioned handle insertion hole and is recessed towards the X- side, so as to serve as the point of action of the aforementioned handle when the aforementioned power distribution equipment body is to be moved from the aforementioned test position to the aforementioned operating position. This provides a power distribution device that is easy to position the handle when inserting or pulling out the circuit breaker body, and features a safe handle and good storage. and, It includes: a first fulcrum hole, used when moving the aforementioned power distribution equipment body from the aforementioned test position to the aforementioned operating position; and The second fulcrum hole is located on the X-side of the aforementioned first fulcrum hole, and is used when the aforementioned power distribution equipment body is to be moved from the aforementioned operating position to the aforementioned test position. This allows the operator to use the fulcrum holes on both sides when inserting and pulling out the circuit breaker, enabling the operator to operate at the most suitable handle angle that effectively utilizes the applied force during both insertion and withdrawal. and, It has the aforementioned handle that is formed in a straight line shape. This design allows for space-saving storage of the handle and excellent tidiness. Furthermore, the handle does not require bending, enabling low-cost manufacturing of the handle 40. and, The aforementioned handle has a step portion at at least one of its ends, and the step portion can be engaged with the edge of the aforementioned fulcrum hole. This allows the operator to easily position the handle in the Z direction. and, The aforementioned handle has the aforementioned step portions at both ends in the length direction, and the aforementioned power distribution equipment body has two handle holding portions that can hold each of the aforementioned step portions of the handle. This allows the handle to be stored in a space-saving manner, making it readily available for use at any time. and, The aforementioned handle's rotation range is 30 degrees to the X+ side and 15 degrees to the X- side relative to the vertical direction. Therefore, when inserting or pulling out, the handle 40 can be operated at the most suitable handle angle to effectively utilize the applied force.
[0040] Implementation type 2. The following description focuses on the parts that differ from those in Embodiment 1, explaining the interruptor in Embodiment 2. Figure 12A is a plan view of the bracket 10 and the fixing frame 30 in embodiment 2. Figure 12B shows an enlarged view of the main part of the base plate 11 of the bracket 10. Figure 13A shows a cross-sectional view of the main part of the circuit breaker 200 with the handle 40 attached in order to move the circuit breaker body 20 from the test position to the operating position. Figure 13B shows a partial cross-sectional view of the circuit breaker 200 with the handle 40 installed after it has been moved to the operating position. Figure 14A shows a cross-sectional view of the main part of the circuit breaker 200 with the handle 40 attached in order to move the circuit breaker body 20 from the operating position to the test position. Figure 14B shows a partial cross-sectional view of the interruptor 200 with handle 40 installed after it has been moved to the test position. In Embodiment 1, two fulcrum holes are provided: one for moving the circuit breaker body 20 from the test position to the operating position, and the other for moving the circuit breaker body 20 from the operating position to the test position. In this embodiment, the boundary between fulcrum holes H1 and H2 is eliminated, allowing fulcrum holes H1 and H2 to combine into a single elongated fulcrum hole H3.
[0041] As shown in Figures 13A and 13B, when moving the circuit breaker body 20 from the test position to the operating position, the handle 40 abuts against the edge H3F on the X+ side of the fulcrum hole H3, using the abutting part as a fulcrum. Conversely, when moving the circuit breaker body 20 from the operating position to the test position, the handle 40 abuts against the edge H3R on the X- side of the fulcrum hole H3, using the abutting part as a fulcrum. This position is the same as when the fulcrum holes H1 and H2 are separated, and the handle 40 can be used in the same manner as in Embodiment 1.
[0042] According to the interrupter 200 of implementation type 2, The aforementioned fulcrum hole is an elongated hole extending in the X direction. This produces the same effect as in Embodiment 1. Furthermore, the front end of the handle 40 can be easily inserted into the fulcrum hole H3. Moreover, since there is only one fulcrum hole H3, accidental insertion by the operator is prevented.
[0043] Various exemplary embodiments and examples are disclosed in this invention description. However, the various features, forms and functions described in one or more embodiments are not limited to applying only to that specific embodiment, but can also be applied to the embodiment individually or in various combinations. Therefore, countless variations not illustrated are conceivable within the scope of the technology disclosed in this specification. For example, there may be cases involving changes, additions, or omissions of at least one constituent element, or even cases where at least one constituent element is extracted and combined with constituent elements of other embodiments.
[0044] 100, 200: Circuit breaker (power distribution equipment) 10: Bracket 11: Base Plate 12: Wheel guide rail 20: Circuit breaker body (power distribution equipment body) 20F: Front surface 21: Bearing component 21H: Handle insertion hole 21HF: inner surface 21K: Gap 22: Movable side terminal 22S: Contactor 25: Handle retainer 30: Fixed frame 31: Fixed side terminal 40,40B: Handle 40D: step difference part 41: Front-end 42: Handle h,H1,H2,H3: Pivot holes H3F, H3R: Perforation T: Wheel TG: Axle
Claims
1. A power receiving and distribution device comprising: a bracket; and a power receiving and distribution device body, mounted on the bracket and movable between an operating position connected to a busbar and a test position disconnected from the busbar, wherein, When the moving direction of the aforementioned power distribution equipment body is set as the X direction, the aforementioned operating position side is set as the X- side, and the aforementioned test position side is set as the X+ side, the base plate of the aforementioned bracket is provided with: a fulcrum hole, which serves as the fulcrum for inserting one end of the handle when the aforementioned power distribution equipment body is to move between the aforementioned operating position and the aforementioned test position; the aforementioned power distribution equipment body is provided with: a bearing member, which protrudes toward the X+ side and serves as the point of action of the aforementioned handle when the aforementioned power distribution equipment body is to move; the aforementioned bearing member is provided with: a handle insertion hole, which serves as the aforementioned point of action of the aforementioned handle when the aforementioned power distribution equipment body is to move from the aforementioned operating position to the aforementioned test position; and a notch, which is provided on the X+ side of the aforementioned handle insertion hole and recessed toward the X- side, serving as the point of action of the aforementioned handle when the aforementioned power distribution equipment body is to move from the aforementioned test position to the aforementioned operating position.
2. The power distribution equipment as described in claim 1, wherein, The aforementioned fulcrum hole is an elongated hole extending in the X direction.
3. The power distribution equipment as claimed in claim 1, comprising: a first fulcrum hole for use when the power distribution equipment body is to be moved from the test position to the operating position; and a second fulcrum hole provided on the X-side of the first fulcrum hole for use when the power distribution equipment body is to be moved from the operating position to the test position.
4. The power distribution equipment as described in any one of claims 1 to 3, comprising: the aforementioned handle formed in a straight line shape.
5. The power distribution equipment as described in claim 4, wherein, The aforementioned handle has a step portion at at least one end, and the aforementioned step portion is engaged with the edge of the aforementioned fulcrum hole.
6. The power distribution equipment as described in claim 5, wherein, The aforementioned handle has the aforementioned step portions at both ends in the length direction, and the aforementioned power distribution equipment system has two handle holding portions that hold each of the aforementioned step portions of the handle.
7. The power distribution equipment as described in claim 4, wherein, The aforementioned handle's rotation range is 30 degrees to the X+ side and 15 degrees to the X- side relative to the vertical direction.
8. The power distribution equipment as described in claim 5, wherein, The aforementioned handle's rotation range is 30 degrees to the X+ side and 15 degrees to the X- side relative to the vertical direction.
9. The power distribution equipment as described in claim 6, wherein, The aforementioned handle's rotation range is 30 degrees to the X+ side and 15 degrees to the X- side relative to the vertical direction.