Wiring board with high stability

By designing a circular boss and multiple through holes on the terminal block, the problems of loose connections and easy aging and loosening of the terminal block are solved, improving stability and strength, and enhancing the overall load-bearing capacity and connection strength of the terminal block.

CN223927328UActive Publication Date: 2026-02-17ZHEJIANG ZHONGTONG ELECTRIC TECH CO LTD
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Patent Information

Application Number
CN202520543161.9
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-26
Publication Date
2026-02-17
Estimated Expiration
2035-03-26

AI Technical Summary

Technical Problem

The existing 220 kV circuit breaker terminal blocks have few connection points and poor stability. After long-term use, they are prone to aging and loosening, which leads to overheating of the contact points, low structural strength, easy deformation, and insufficient stability.

Method used

Design a junction box with connecting plates at both ends, several circular bosses coaxially arranged on the surface, and multiple through holes. The circular bosses and the connecting corners are rounded to increase the structural complexity and connection points, disperse stress, and improve stability and load-bearing capacity.

Benefits of technology

By adding circular bosses and through-hole structures, stress is dispersed, improving the stability and strength of the terminal block, enhancing connection firmness, increasing contact area, and improving the overall structure's load-bearing capacity and resistance to deformation.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a wiring board with high stability, which comprises a wiring board, two ends of the wiring board are provided with connecting plates, the surface of the wiring board is provided with a plurality of circular bosses which are coaxial and are in a loop structure, and the surfaces of the connecting plates are provided with a plurality of first through holes in a rectangular array. A plurality of second through holes are formed in the edge of the surface of the wiring board in an annular array mode, and a plurality of third through holes are formed in the position, located on the inner side of the circular boss, of the surface of the wiring board in an annular array mode. According to the utility model, the plurality of circular bosses are coaxially arranged on the surface of the wiring board, so that stress can be effectively dispersed, the stress is not concentrated at a certain point of the wiring board any more, the overall strength of the wiring board is improved, and the overall stability and the bearing capacity of the wiring board are effectively improved.
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Description

TECHNICAL FIELD

[0001] The utility model relates to circuit breaker terminal board technical field, specifically relates to a high stability terminal board. BACKGROUND

[0002] Circuit breaker terminal board is used for the accessory of the circuit breaker to bear the function. At present, part 220 kilovolt circuit breaker terminal board applies the size smaller terminal board of 5 screw holes (its typical structure is as shown in Figures 1-2 When running outdoors, due to the few connection points of the terminal board, the poor firmness, the aging loosening phenomenon after long time use and the influence of the outside world, the too large resistance leads to the large heating of the contact point, and the strength of the whole plane structure of the terminal board is low, and the stress exists in the circular structure, the terminal board is deformed and twisted under the pulling of the connecting lead in long time use, thereby the use stability of the terminal board is low.

[0003] Therefore, the applicant has made beneficial design, found the method for solving the above problems, and the technical scheme to be introduced below is generated under this background. CONTENT OF THE UTILITY MODEL

[0004] The utility model relates to a high stability terminal board to solve the problems in the background.

[0005] In order to realize the above object, the utility model provides the following technical scheme:

[0006] A high stability terminal board, comprising a terminal board, the terminal board is equipped with a connecting plate at both ends, the surface of the terminal board is coaxial with the center and is equipped with a plurality of circular bosses in ring sleeve structure, the surface of the connecting plate is equipped with a plurality of first through holes in rectangular array, the edge of the surface of the terminal board is equipped with a plurality of second through holes in ring array, and the surface of the terminal board is equipped with a plurality of third through holes in ring array on the inner side of the circular boss.

[0007] Preferably, the connecting edge corner of the circular boss and the terminal board is provided with a round corner transition.

[0008] Preferably, the connecting edge corner of the connecting plate and the terminal board is provided with a round corner transition.

[0009] Preferably, the number of first through holes is 9.

[0010] Preferably, the number of second through holes is 8.

[0011] Preferably, the number of third through holes is 8.

[0012] Beneficial effects

[0013] The high-stability junction box provided in this embodiment of the utility model has at least one of the following technical effects:

[0014] This utility model, through the aforementioned technical solution, alters the original planar structure of the terminal block by incorporating several circular bosses, increasing the structural complexity. When the terminal block is subjected to external forces, this complex structure can disperse stress, preventing stress concentration at a single point or area, thereby improving the overall stability and load-bearing capacity of the terminal block. Furthermore, the circular bosses act as reinforcing ribs, limiting the deformation of the terminal block under stress, enhancing its resistance to deformation, and thus increasing its strength. The circular bosses alter the stress distribution within the material during the terminal block's manufacturing process. Under subsequent external stress, this new stress distribution allows the terminal block to better withstand stress, improving its strength. Simultaneously, during use, when the terminal block is connected to other components, the circular bosses increase the contact area between the terminal block and the connecting components. This increased contact area makes the connection more robust, better transmitting stress under external forces, thereby improving the overall structural strength and stability, and indirectly increasing the terminal block's stress-bearing capacity. The inclusion of several first, second, and third through holes significantly increases the number of connection points on the terminal block, thereby improving its connection strength. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the three-dimensional structure of an existing conventional junction box;

[0016] Figure 2 This is a top view of a conventional junction box.

[0017] Figure 3 This is a three-dimensional structural diagram of the junction box of this utility model;

[0018] Figure 4 This is a top view of the wiring board of this utility model.

[0019] The correspondence between the labels and component names in the attached figures is as follows:

[0020] 1. Terminal block; 2. Connecting plate; 3. Circular boss; 4. First through hole; 5. Second through hole; 6. Third through hole. Detailed Implementation

[0021] The technical solution of this utility model will be clearly and completely described below with reference to the embodiments. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0022] In the description of this utility model, it should be understood that the terms "upper", "lower", "left", "right", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0023] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0024] To avoid excessive and unnecessary details, well-known structures or functions will not be described in detail in the following embodiments.

[0025] like Figures 1-4 The diagram shown is a structural schematic of a highly stable terminal block according to a preferred embodiment of the present invention.

[0026] In this embodiment, a terminal block 1 is included, with connecting plates 2 at both ends. The surface of the terminal block 1 has several circular bosses 3 arranged coaxially in a ring structure, with at least two of each. The surface of the connecting plates 2 has several first through holes 4 arranged in a rectangular array, several second through holes 5 arranged in a ring array at the edge of the terminal block 1, and several third through holes 6 arranged in a ring array inside the circular bosses 3. The presence of several circular bosses 3 alters the original planar structure of the terminal block 1, increasing its structural complexity. When the terminal block 1 is subjected to external forces, this complex structure can disperse stress, preventing stress concentration at a single point or area, thereby improving the overall stability and load-bearing capacity of the terminal block 1. Furthermore, the circular bosses 3 act as reinforcing ribs, limiting the deformation of the terminal block 1 under stress, enhancing its resistance to deformation, and thus increasing its strength. The circular bosses 3 alter the stress distribution within the material of the terminal block 1 during processing. When subsequently subjected to external stress, this new stress distribution allows the terminal block 1 to better withstand stress, improving its strength. For example, the internal grain structure of the terminal block 1 can be optimized during processing and stress application, resulting in more microstructural changes such as dislocations that are beneficial for resisting stress. Simultaneously, during use, when the terminal block 1 is connected to other components, the circular boss 3 increases the contact area between the terminal block 1 and the connecting component. The increased contact area makes the connection more robust, and under external force, it can better transmit stress, thereby improving the strength and stability of the entire structure, and indirectly increasing the stress resistance of the terminal block 1.

[0027] In this embodiment, the corners where the circular boss 3 connects to the terminal block 1 are rounded. Similarly, the corners where the connecting plate 2 connects to the terminal block 1 are rounded. This structure ensures a smooth transition at the connection points, avoids stress concentration, and guarantees overall strength.

[0028] In this embodiment, there are 9 first through holes 4, 8 second through holes 5, and 8 third through holes 6. By providing a plurality of first through holes 4, second through holes 5, and third through holes 6, the number of connection points of the terminal block 1 is greatly increased, thereby improving the connection strength of the terminal block 1.

[0029] The present invention provides a highly stable terminal block, the installation method, connection method or setting method of which are all common mechanical methods, and any method that can achieve its beneficial effect can be implemented.

[0030] All technologies not described in detail in this utility model are known technologies. Those skilled in the art can easily implement this utility model based on their understanding of this specification, and the contents shown in the accompanying drawings are part of this specification.

[0031] The above description, in conjunction with specific embodiments, provides a further detailed explanation of the present utility model. It should not be construed that the specific implementation of the present utility model is limited to these descriptions. For those skilled in the art, several simple deductions or substitutions can be made without departing from the concept of the present utility model, and all such deductions or substitutions should be considered to fall within the scope of protection defined by the claims submitted by the present utility model.

Claims

1. A highly stable terminal block, characterized in that: Includes a terminal block (1), with connecting plates (2) at both ends of the terminal block (1). The surface of the terminal block (1) is coaxially arranged with several circular bosses (3) in a ring structure. The surface of the connecting plate (2) is arranged with several first through holes (4) in a rectangular array. The edge of the surface of the terminal block (1) is arranged with several second through holes (5) in a ring array. The surface of the terminal block (1) is arranged with several third through holes (6) in a ring array inside the circular bosses (3).

2. The highly stable terminal block according to claim 1, characterized in that: The circular boss (3) and the junction box (1) are both rounded at their connecting corners.

3. The highly stable terminal block according to claim 1, characterized in that: The corners of the connection between the connecting plate (2) and the terminal block (1) are rounded.

4. The highly stable terminal block according to claim 1, characterized in that: The number of the first through holes (4) is 9.

5. A highly stable terminal block according to claim 1, characterized in that: The number of the second through holes (5) is 8.

6. A highly stable terminal block according to claim 1, characterized in that: The number of the third through holes (6) is 8.