10kV solid-sealed modularized moving contact combined product
The modularly designed 10kV solid-sealed moving contact assembly product solves the problem of the inability to adjust the phase spacing and pole spacing of circuit breakers, achieving flexible adjustment, cost reduction, and expanded application range.
Patent Information
- Application Number
- CN202520173324.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-24
- Publication Date
- 2026-01-30
- Estimated Expiration
- 2035-01-24
AI Technical Summary
The existing 10kV solid-insulated circuit breakers cannot flexibly adjust the phase spacing and pole spacing, resulting in high production costs and poor versatility.
Design a 10kV solid-sealed modular moving contact assembly product, including contact arm, moving contact, pad, and comb plate. The phase spacing and pole spacing can be adjusted by different combination methods, and flexible adjustment can be achieved by the stacking order of the pad and contact arm and the installation position of the comb plate.
It enables flexible adjustment of phase spacing and pole spacing, reduces design and production costs, expands the scope of application, and has high adjustment accuracy.
Smart Images
Figure CN223858083U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to the technical field of electrical equipment, specifically relates to a 10kV solid seal type modularization movable contact combination product. BACKGROUND
[0002] Since the 10kV metal armored closed movable switch equipment power system equipment scheme began to serve global power users widely since the end of the 20th century, the original first generation power equipment begins to gradually enter 30-year replacement time node. Most of the switch cabinet design life of the cabinet is 60 years, and the circuit breaker switch isolation equipment life is 30 years. After 30 years, 10KV switch equipment technology develops rapidly, and most of the original products and supporting parts have been replaced by new technology and new products. The original circuit breaker is mainly placed in the cabinet, and at present, 10kV switch cabinet circuit breaker is almost all placed in the cabinet, and the distance between the poles and the distance between the phases are not unified. The product produced 30 years ago is difficult and high in cost. In order to realize the non-standard distance between the phases A\B\C of the circuit breaker and the distance between the poles, most of the schemes are mainly to design solid seal pole and redesign circuit breaker mechanism transmission shaft. It is difficult to adapt, high in cost and low in universality. Figure 1 As shown in the figure, the current solid seal circuit breaker includes a contact arm and a movable contact connected to the front side of the contact arm, is divided into ABC three phases, the phase distance is mostly 210mm, which cannot be adjusted; the main loop pole distance is mostly 275mm, 310mm, which also cannot be adjusted. If other phase distance or pole distance solid seal pole is needed, the mold needs to be opened by the manufacturer for separate design, which is very high in cost and cannot be used for other products. Utility model content
[0003] The utility model aims at providing a 10kV solid seal type modularization movable contact combination product, which solves the problem that the existing circuit breaker cannot flexibly adjust the phase distance and the pole distance.
[0004] The utility model is realized through the following technical schemes:
[0005] The utility model discloses a 10kV solid seal type modularization movable contact combination product, including contact arm, movable contact, cushion block and comb plate, movable contact is embedded in comb plate,
[0006] The cushion block includes A / C phase cushion block and B phase cushion block, and the B phase cushion block is installed at the B phase, and the A / C phase cushion block is installed at the A / C phase.
[0007] The comb plate includes first comb plate, second comb plate and third comb plate.
[0008] The end of the contact arm is connected with the comb plate, and the movable contact is embedded in the comb plate.
[0009] Both the first and third comb plates have two pre-made connection holes, namely the first hole and the second hole. The first hole is opened off-center from the center of the comb plate, and the second hole is opened close to the center of the comb plate. When the first and third comb plates are connected to the contact arm, the center of the moving contact is offset towards the second hole.
[0010] The second comb plate is installed at the B phase position;
[0011] When the required phase spacing is less than the distance between the centers of the two contact arms, the first comb plate is installed in phase A and the third comb plate is installed in phase C.
[0012] When the required phase spacing is greater than the distance between the centers of the two contact arms, the first comb plate is installed in phase C and the third comb plate is installed in phase A.
[0013] Furthermore, multiple slots are pre-made on the B-phase pad and the A / C-phase pad; the slots on the A / C-phase pad are offset to match the position of the moving contact.
[0014] The contact arm includes an upper contact arm and a lower contact arm;
[0015] The vertical distance between the centers of the upper and lower contact arms in the same phase is the pole spacing. When the pole spacing needs to be increased, the pad is installed on the upper side of the upper contact arm and / or the lower side of the lower contact arm.
[0016] When the interpole spacing needs to be reduced, the pad is installed on the underside of the upper contact arm and / or the upper side of the lower contact arm.
[0017] Furthermore, multiple threaded holes are pre-drilled at the end of the contact arm. These threaded holes are connected to the solid-sealing poles for coarse adjustment of the pole spacing, while the pads are used for fine adjustment of the pole spacing.
[0018] Furthermore, the contact arm 1 is made of T2 copper plate bent into shape.
[0019] Furthermore, the moving contact includes multiple sets of contact fingers, which are made of 4mm thick copper plate.
[0020] Furthermore, the phase spacing adjustment range is controlled within 15-20mm.
[0021] Compared with the prior art, the present invention has the following beneficial technical effects:
[0022] This utility model discloses a 10kV solid-sealed modular moving contact assembly product. The provided combination of contact arm + moving contact + contact arm pad can be arranged and combined in different directions to obtain a series of combination products with different phase spacing and pole spacing, which has a relatively wide range of applications. The corresponding design time and economic cost are relatively low.
[0023] This invention designs three different comb-tooth plates, which can be arranged and combined in various directions to obtain a series of combination products with different phase spacings, making it widely applicable. Currently, the phase spacing of the contact arms in the main circuit of solid-sealed circuit breakers cannot be adjusted. If other pole spacings are required, the manufacturer needs to design molds separately, which is very costly and cannot reuse other products. Through the modular combination of this invention, the phase spacing can be flexibly adjusted. Circuit breaker products with different pole spacing requirements can be customized by varying the stacking order of the pads and contact arms.
[0024] Furthermore, the movable connection method of the isomorphic contact arm can first be coarsely adjusted in terms of the interpole spacing, and then finely adjusted in conjunction with the pads to achieve precise adjustment. Attached Figure Description
[0025] Figure 1 This is a schematic diagram of the structure of each part of the moving contact;
[0026] In the figure, a is the contact arm; b is the moving contact; c is the first comb plate; d is the second comb plate; e is the third comb plate; f is the first pad; and g is the second pad.
[0027] Figure 2 This is a schematic diagram of the installation of the moving contact assembly when the phase spacing is reduced;
[0028] Figure 3 for Figure 2 A simplified diagram;
[0029] Figure 4 This is a schematic diagram of the installation of the moving contact assembly when the phase spacing is increased;
[0030] Figure 5 This is a schematic diagram of the assembly structure of a 10kV solid-sealed modular moving contact assembly product according to the present invention;
[0031] Figure 6 Figure 1 shows a schematic diagram of the structure when the interpole spacing changes; Figure 2 shows the installation position of the pad when the interpole spacing decreases; Figure 3 shows the installation position of the pad when the interpole spacing is standard; Figure 4 shows the installation position of the pad when the interpole spacing increases.
[0032] Figure 7 This is a schematic diagram of the moving contact.
[0033] Among them, 1. contact arm; 2. moving contact; 3. first comb plate; 4. second comb plate; 5. third comb plate; 6. A / C phase pad; 7. B phase pad; 10. slot.
[0034] 8. First hole; 9. Second hole;
[0035] 11. Round hole; 12. Threaded hole;
[0036] 21. Touching fingers. Detailed Implementation
[0037] To make the objectives, technical solutions, and advantages of this utility model clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of this utility model and are not intended to limit it; that is, the described embodiments are only a part of, and not all, of the embodiments of this utility model.
[0038] The components described and illustrated in the accompanying drawings and embodiments of this utility model can be arranged and designed in various different configurations. Therefore, the detailed description of the embodiments of this utility model provided in the following drawings is not intended to limit the scope of the claimed utility model, but merely to illustrate one selected embodiment of the utility model. All other embodiments obtained by those skilled in the art based on the accompanying drawings and embodiments of this utility model without inventive effort are within the protection scope of this utility model.
[0039] It should be noted that the terms "comprising," "including," or any other variations are intended to cover non-exclusive inclusion, such that a process, element, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to the process, element, method, article, or apparatus. Furthermore, the term "vertical" is based on the orientation and positional relationship of the devices or components shown in the accompanying drawings and is used only for better description of the present invention, not as a requirement that the shown devices, components, or apparatus must have that specific orientation, and therefore should not be construed as a limitation of the present invention.
[0040] The features and performance of this utility model will be further described in detail below with reference to the embodiments.
[0041] like Figure 1 As shown, this utility model discloses a 10kV solid-sealed modular moving contact assembly product, including a moving contact 2, a contact arm 1, a B-phase pad 7, an A / C-phase pad 6, a first comb plate 3, a second comb plate 4, and a third comb plate 5. These components are installed in different combinations to flexibly adjust the phase spacing and electrode spacing.
[0042] like Figure 1 As shown in figures c, d, and e, each comb plate has two pre-drilled connection holes. Correspondingly, the contact arm 1 also has pre-drilled circular holes 11 for connecting with the connection holes on the comb plate. The comb plate is bolted to the contact arm 1. Existing technology only has one type of comb plate structure, which is as follows... Figure 1 The structure of the second comb plate 4 shown in Figure d has two symmetrically arranged connecting holes.
[0043] This utility model designs three comb plate structures. The two connecting holes on the first comb plate 3 and the third comb plate 5 are named the first hole 8 and the second hole 9. The first hole 8 is opened off-center from the center of the comb plate, and the second hole 9 is opened close to the center of the comb plate. This way, when the first comb plate 3 and the third comb plate 5 are connected to the contact arm 1, after the moving contact 2 is embedded in the first comb plate 3, the center of the moving contact 2 will deviate towards the direction of the second hole 9.
[0044] like Figure 2 and Figure 3 As shown, when it is necessary to reduce the phase spacing, the first comb plate 3 is installed in phase A, the second comb plate 4 is installed in phase B, and the third comb plate 5 is installed in phase C. In specific installation, the second hole 9 of the first comb plate 3 and the second hole 9 of the third comb plate 5 are both installed close to phase B, and the phase spacing will become shorter.
[0045] For example, if you want to reduce the phase spacing from 210mm to 200mm, you only need to shift the two holes on the first comb plate 3 and the third comb plate 5 outward by 10mm relative to the middle B phase during the design process.
[0046] like Figure 4 As shown, to increase the phase spacing from 210mm to 220mm, simply swap the installation positions of the first comb plate 3 and the third comb plate 5 during installation. The first comb plate 3 is installed in phase C, the second comb plate 4 in phase B, and the third comb plate 5 in phase A. Specifically, during installation, the second hole 9 of the first comb plate 3 and the second hole 9 of the second comb plate 5 should both be installed away from phase B, thus increasing the phase spacing.
[0047] Each phase is further divided into upper and lower contact arms, and the vertical distance between the upper and lower contact arms is the pole spacing. This utility model designs A / C phase pads 6 that are matched and installed with the first comb plate 3 and the third comb plate 5, and B phase pads 7 that are matched and installed with the second comb plate 4. Figure 1 As shown in Figure g, the A / C phase pad 6 has two pre-made holes for connecting to the contact arm 1 and multiple slots 10 for engaging with the moving contact 2. Since the center line of the A / C phase comb plate is offset from the center line of the contact arm, the slots 10 on the A / C phase pad 6 also need to be offset to ensure that the moving contact 2 can be engaged in the slots 10 on the A / C phase pad 6.
[0048] like Figure 1 As shown in Figure a, multiple threaded holes 12 are pre-made at the end of the contact arm 1. The threaded holes 12 are connected to the solid-sealing poles and are used to first coarsely adjust the pole spacing, and then finely adjust the pole spacing through the pads.
[0049] like Figure 7As shown, the moving contact 2 is assembled from contact finger 21, guide plate, stop block, compression spring, and clip. Contact finger 21 is made of two 4mm thick copper plates and assembled into a set according to the rated current.
[0050] The three comb plates are designed according to the customized phase spacing. The contact arm 1 and the pad block are combined to adjust the pole spacing. The contact arm 1, the pad block and the moving contact 2 are assembled and fixed together. By different stacking order of the pad block and the contact arm 1 and different installation positions of the comb plates, circuit breaker products with different pole spacing and phase spacing requirements can be customized.
[0051] By using the above-described assembled product, the circuit breaker's ground distance, phase distance, and pole distance can be adjusted within the assembly area. This results in lower design time and economic costs, and a relatively wide range of applicability. It is worth noting that the adjustment range is recommended to be controlled within 15-20mm, and is not unlimited.
[0052] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and not to limit it. Although the utility model has been described in detail with reference to the above embodiments, those skilled in the art should understand that modifications or equivalent substitutions can still be made to the specific implementation of this utility model. Any modifications or equivalent substitutions that do not depart from the spirit and scope of this utility model should be covered within the protection scope of the claims of this utility model.
Claims
1. A 10 kV hermetically sealed modular movable contact assembly, characterized in that, It comprises a contact arm (1), a moving contact (2), a spacer and a comb plate; the moving contact (2) is embedded in the comb plate (3); The spacer comprises an A / C phase spacer (6) and a B phase spacer (7); the B phase spacer (7) is installed at the B phase and the A / C phase spacer (6) is installed at the A / C phase; The comb plate comprises a first comb plate (3), a second comb plate (4) and a third comb plate (5); The end of the contact arm (1) is connected with the comb plate and the moving contact (2) is embedded in the comb plate; The first comb plate (3) and the third comb plate (5) are both provided with two connecting holes, namely a first hole (8) and a second hole (9); the first hole (8) is provided away from the center of the comb plate and the second hole (9) is provided close to the center of the comb plate; when the first comb plate (3) and the third comb plate (5) are connected with the contact arm (1), the center of the moving contact (2) deviates to the direction of the second hole (9); The second comb plate (4) is installed at the B phase position; When the required phase distance is less than the distance between the centers of two contact arms (1), the first comb plate (3) is installed at the A phase and the third comb plate (5) is installed at the C phase; When the required phase distance is greater than the distance between the centers of two contact arms (1), the first comb plate (3) is installed at the C phase and the third comb plate (5) is installed at the A phase.
2. A 10 kV solid-sealed modular movable contact assembly according to claim 1, characterized in that, The B phase spacer (7) and the A / C phase spacer (6) are both provided with multiple clamping grooves (10); the clamping grooves (10) on the A / C phase spacer (6) are offset in position and used for matching the position of the moving contact (2); The contact arm (1) comprises an upper contact arm and a lower contact arm; The vertical distance between the centers of the upper contact arm and the lower contact arm of the same phase is the pole distance; when the pole distance needs to be increased, the spacer is installed on the upper side of the upper contact arm and / or the lower side of the lower contact arm; When the pole distance needs to be reduced, the spacer is installed on the lower side of the upper contact arm and / or the upper side of the lower contact arm.
3. A 10 kV solid-sealed modular movable contact assembly according to claim 2, characterized in that, Multiple threaded holes (12) are provided at the end of the contact arm (1); the threaded holes (12) are connected with the fixed pole and used for coarsely adjusting the pole distance; the spacer is used for finely adjusting the pole distance.
4. A 10 kV solid-sealed modular movable contact assembly according to claim 1, characterized in that, The contact arm (1) is made of T2 red copper plate.
5. A 10 kV solid-sealed modular movable contact assembly according to claim 1, characterized in that, The moving contact (2) comprises multiple groups of contact fingers (21); the contact fingers (21) are made of 4mm thick red copper plate.
6. A 10 kV solid-sealed modular movable contact assembly according to claim 1, characterized in that, The adjustment range of the phase distance is controlled within 15-20mm.