High-voltage circuit breaker wiring terminal convenient to assemble

Abstract

The utility model belongs to the technical field of circuit breakers, and particularly relates to a high-voltage circuit breaker wiring terminal convenient to assemble, which comprises a terminal shell, one end of the terminal shell is provided with a connecting sheet, and the other side of the terminal shell is provided with a protective rubber sleeve; a mounting groove is formed in one side of the terminal shell, a first connecting block is fixedly arranged on the side, close to the connecting piece, in the mounting groove, the first connecting block is provided with a protruding positioning block, a second connecting block is fixedly arranged at the end, away from the connecting piece, of the other side of the terminal shell, and the second connecting block can slide in the mounting groove. The second connecting block is provided with a positioning hole connected with the positioning block in a matched mode, a second limiting piece is arranged on the inner wall face of the positioning hole, a first limiting piece is arranged on the outer wall face of the positioning block, and the first limiting piece and the second limiting piece can be locked in a matched mode. A terminal connecting assembly is further arranged in the terminal shell, and the end, installed in the terminal shell, of the connecting piece is electrically connected with the terminal connecting assembly through a wire. And the splicing stability of a plurality of wiring terminals is obviously improved.

Description

Technical Field

[0001] This utility model belongs to the field of circuit breaker technology, and in particular relates to a high-voltage circuit breaker terminal block that is easy to assemble. Background Technology

[0002] Circuit breaker terminals are wiring devices installed on the terminals of circuit breakers to facilitate wire insertion and prevent wires from coming loose due to repeated disassembly and use of the circuit breaker terminals.

[0003] For example, Chinese patent document CN212380374U discloses a circuit breaker terminal block that is easy to install. A connecting piece is inserted and fixed at the middle position of one end of the terminal housing, and a protective sleeve is affixed to the center position of the other end of the terminal housing. A combination slot is formed at the middle position of one side of the terminal housing, and a combination clamp is fixed at the corresponding position of the combination slot on the other side of the terminal housing. This allows for quick insertion and fixing of wire terminals. The quick-insertion mechanism facilitates convenient and rapid insertion and fixing of wire terminals. The anti-slip teeth clamp and lock the wire terminals to prevent them from falling off. The combination slot and combination clamp facilitate the combination and splicing of multiple terminals, allowing for selection of terminals as needed, avoiding material waste, and increasing the flexibility of splicing.

[0004] In the aforementioned patent literature, multiple terminals are assembled using only a combination of a card head and a combination of card slots. This assembly method cannot guarantee the stability of the connection between the multiple terminals. Furthermore, if external force is applied to the terminals, the card slots are prone to detaching from their internal components. Utility Model Content

[0005] The purpose of this utility model is to provide a high-voltage circuit breaker terminal block that is easy to assemble, and to solve the problem that the stability of the connection cannot be guaranteed when multiple terminals are spliced ​​together by combining clamps and slots.

[0006] To achieve the above objectives, this utility model provides a high-voltage circuit breaker terminal block that is easy to assemble, comprising a terminal housing, a connecting piece at one end of the terminal housing, the other end of the connecting piece being installed inside the terminal housing, and a protective sleeve on the other side of the terminal housing; a mounting groove is provided on one side of the terminal housing, and a first connecting block is fixedly provided in the mounting groove near the connecting piece, the first connecting block having a protruding positioning block; a second connecting block is fixedly provided on the other side of the terminal housing away from the connecting piece, the second connecting block being slidable within the mounting groove, the second connecting block having a positioning hole that engages with the positioning block, a second limiting member on the inner wall of the positioning hole, and a first limiting member on the outer wall of the positioning block, the first limiting member and the second limiting member being able to engage and lock each other; a terminal connecting assembly is also provided inside the terminal housing, and the end of the connecting piece installed inside the terminal housing is electrically connected to the terminal connecting assembly via a wire.

[0007] Furthermore, the second limiting member is a conical groove, and the first limiting member is a conical protrusion. The conical protrusion on the positioning block can be embedded in the conical groove on the positioning hole.

[0008] Furthermore, the positioning hole has multiple tapered grooves, which are evenly distributed on the inner wall surface of the positioning hole, and the tapered protrusions on the positioning block are correspondingly arranged with the tapered grooves.

[0009] Furthermore, the terminal connection assembly includes a screw that is rotatably connected to the top side of the terminal housing via a thread. A bearing is fixedly connected to the bottom end of the screw, and a movable plate is fixedly connected to the bottom end of the bearing. A conductive spring is fixedly connected to one end of the movable plate, and one end of the movable plate is electrically connected to one end of the connecting piece via a wire. The bottom end of the movable plate is provided with a downwardly extending extension section. A lower conductive piece is provided at the bottom inside the terminal housing, and the lower conductive piece is electrically connected to an elastic positioning groove. The positioning groove is detachably connected to the movable plate through the extension section.

[0010] Furthermore, the positioning groove includes a base plate, two first side plates and two second side plates disposed on the base plate, the two first side plates being disposed opposite each other, and the two second side plates being disposed at both ends of the two first side plates respectively; the distance between the two second side plates is less than or equal to the width of the extension section, and the distance between the two first side plates is less than or equal to the thickness of the extension section.

[0011] Furthermore, the extension section includes a bent section connected to the movable plate and a vertical section that mates with the positioning groove. The width of the vertical section is greater than the width of the bent section to form two protrusions on both sides of the bent section. The end of the second side plate is provided with a buckle that mates with the protrusions.

[0012] Furthermore, the inner wall of the free end of the first side plate is provided with an inclined surface away from the positioning groove, and the inclined surface makes the thickness of the free end of the first side plate less than the thickness of the bottom of the first side plate.

[0013] The above-mentioned technical solutions in the easily assembled high-voltage circuit breaker terminal block provided by this utility model embodiment have at least the following technical effects:

[0014] When splicing two sets of terminal housings, the second connecting block is installed in the mounting groove. By sliding the second connecting block closer to the first connecting block, the positioning block on the first connecting block is inserted into the positioning hole of the second connecting block. The first limiting member on the outer wall of the positioning block and the second limiting member on the inner wall of the positioning hole are engaged to lock the connection, preventing the two terminal housings from loosening after connection. This ensures that the second connecting block is stably installed in the mounting groove and connected to the first connecting block, significantly improving the stability of splicing multiple terminals. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 A perspective view of a high-voltage circuit breaker terminal block for easy assembly, provided as an embodiment of this utility model.

[0017] Figure 2 Another perspective view of the high-voltage circuit breaker wiring terminals provided for easy assembly in an embodiment of this utility model.

[0018] Figure 3 A cross-sectional view of a high-voltage circuit breaker terminal block that is easy to assemble, provided for an embodiment of this utility model.

[0019] Figure 4 The diagram shows the structure of the movable plate and positioning groove of the high-voltage circuit breaker terminal block, which is easy to assemble, according to an embodiment of the present invention.

[0020] In the figure, 100 is the terminal housing, 110 is the connecting piece, 120 is the mounting groove, 121 is the first connecting block, 122 is the positioning block, 123 is the first limiting member, 130 is the second connecting block, 131 is the positioning hole, 132 is the second limiting member, and 140 is the protective rubber sleeve.

[0021] 200 Terminal connection assembly, 210 Screw, 220 Bearing, 230 Upper conductive spring, 240 Movable plate, 241 Extension section, 242 Bending section, 243 Vertical section, 244 Protrusion, 250 Lower conductive sheet, 251 Positioning groove, 252 Base plate, 253 First side plate, 254 Second side plate, 255 Buckle, 256 Bevel. Detailed Implementation

[0022] The embodiments of this utility model are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the embodiments of this utility model, and should not be construed as limiting the utility model.

[0023] In the description of the embodiments of this utility model, it should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing the embodiments of 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.

[0024] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of embodiments of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0025] In this embodiment of the invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; 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; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this embodiment of the invention according to the specific circumstances.

[0026] In one embodiment of the easily assembled high-voltage circuit breaker terminal block of this utility model, please refer to... Figures 1-4A high-voltage circuit breaker terminal block for easy assembly includes a terminal housing 100. One end of the terminal housing 100 has a connecting piece 110, and the other end of the connecting piece 110 is installed inside the terminal housing 100. A protective sleeve 140 is provided on the other side of the terminal housing. One side of the terminal housing 100 has a mounting groove 120. A first connecting block 121 is fixedly installed in the mounting groove 120 near the connecting piece 110. The first connecting block 121 has a protruding positioning block 122. A second connecting block 130 is fixedly installed on the other side of the terminal housing 100 away from the connecting piece 110. The second connecting block 130 is slidable within the mounting groove 120. The second connecting block 130 has a positioning hole 131 that engages with the positioning block 122. A second limiting member 132 is provided on the inner wall of the positioning hole 131, and a first limiting member 123 is provided on the outer wall of the positioning block 122. The first limiting member 123 and the second limiting member 132 can cooperate and lock together. The terminal housing 100 is also provided with a terminal connection assembly 200. One end of the connecting piece 110 installed inside the terminal housing 100 is electrically connected to the terminal connection assembly 200 via a wire.

[0027] Specifically, when splicing the two sets of terminal housings 100, the second connecting block 130 is installed in the mounting groove 120. By sliding the second connecting block 130 closer to the first connecting block 121, the positioning block 122 on the first connecting block is inserted into the positioning hole 131 of the second connecting block. The first limiting member 123 on the outer wall of the positioning block 122 cooperates with the second limiting member 132 on the inner wall of the positioning hole 131 to lock it in place, so as to prevent the two terminal housings 100 from loosening after connection. This ensures that the second connecting block 130 is stably installed in the mounting groove 120 and connected to the first connecting block 121, which significantly improves the stability of splicing multiple terminals.

[0028] Furthermore, the second limiting member 132 is a conical groove, and the first limiting member 123 is a conical protrusion. The conical protrusion on the positioning block 122 can be embedded in the conical groove on the positioning hole 131. Specifically, the conical protrusion and the conical groove are closely fitted and connected, increasing the contact area, increasing friction, and reducing the possibility of loosening after the wiring terminal is assembled.

[0029] Furthermore, multiple tapered grooves 132 are provided on the positioning hole 131 and are evenly distributed on the inner wall surface of the positioning hole 131. The tapered protrusions 123 on the positioning block 122 are correspondingly provided with the tapered grooves 132. Specifically, the multiple tapered grooves 132 and tapered protrusions 123 are connected to each other to further improve stability.

[0030] Furthermore, the terminal connection assembly 200 includes a screw 210 that is rotatably connected to the top side of the terminal housing via a thread. A bearing 220 is fixedly connected to the bottom end of the screw 210. A movable plate 240 is fixedly connected to the bottom end of the bearing 220. A conductive spring 230 is fixedly connected to one end of the movable plate 240. One end of the movable plate 240 is electrically connected to one end of the connecting piece 110 via a wire. The bottom end of the movable plate 240 is provided with a downwardly extending extension section 241. A lower conductive piece 250 is provided at the bottom inside the terminal housing 100. The lower conductive piece 250 is electrically connected to an elastic positioning groove 251. The positioning groove 251 is detachably connected to the movable plate 240 via the extension section 241. Specifically, rotating the screw 210 causes it to move downwards inside the terminal housing 100, driving the bearing 220, the movable plate 240, and the upper conductive spring 230 to move downwards as a whole. This positions the extension 241 of the movable plate 240 within the positioning groove 251 of the lower conductive sheet 250, preventing the wire from falling out and ensuring circuit continuity. Because the positioning groove 251 is an elastic element, the movable plate 240 and the positioning groove 251 can be connected and disassembled multiple times without affecting performance.

[0031] Furthermore, the positioning groove 251 includes a base plate 252, two first side plates 253 and two second side plates 254 disposed on the base plate. The two first side plates 253 are arranged opposite each other, and the two second side plates 254 are respectively disposed at both ends of the two first side plates 253. The distance between the two second side plates 254 is less than or equal to the width of the extension section 241, and the distance between the two first side plates 253 is less than or equal to the thickness of the extension section 241. Specifically, when the upper conductive spring piece 230 moves downward, the sidewalls of the extension section 241 are press-fitted with the first side plates 253 and the second side plates 254 to ensure electrical connection.

[0032] Furthermore, the extension section 241 includes a bent section 242 connected to the movable plate 240 and a vertical section 243 that mates with the positioning groove 251. The width of the vertical section 243 is greater than the width of the bent section 242 to form two protrusions 244 on both sides of the bent section. The end of the second side plate 254 is provided with a buckle 255 that mates with the protrusions 244. Specifically, when the extension section 241 is positioned in the positioning groove 251, the second side plate 254 is snapped onto both sides of the vertical section 243, and the buckle 255 is snapped onto the protrusions 244. This effectively prevents the extension section 241 from separating from the side plate, improving the firmness and stability of the connection.

[0033] Furthermore, the inner wall of the free end of the first side plate 253 is provided with an inclined surface 256 away from the positioning groove 251. The inclined surface 256 makes the thickness of the free end of the first side plate 253 less than the thickness of the bottom of the first side plate 253. Specifically, the inclined surface 256 makes the inlet size of the positioning groove 251 larger than the bottom size, which facilitates the connection and installation of the extension section 241 with the positioning groove 251.

[0034] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A high-voltage circuit breaker terminal block that is easy to assemble, characterized in that: The device includes a terminal housing, one end of which has a connecting piece, the other end of which is installed inside the terminal housing. A protective sleeve is provided on the other side of the terminal housing. One side of the terminal housing has a mounting groove, and a first connecting block is fixedly mounted in the mounting groove near the connecting piece. The first connecting block has a protruding positioning block. A second connecting block is fixedly mounted on the other side of the terminal housing away from the connecting piece. The second connecting block is slidable within the mounting groove and has a positioning hole that engages with the positioning block. A second limiting member is provided on the inner wall of the positioning hole, and a first limiting member is provided on the outer wall of the positioning block. The first and second limiting members can engage and lock together. The terminal housing also contains a terminal connecting assembly. One end of the connecting piece installed inside the terminal housing is electrically connected to the terminal connecting assembly via a wire. The second limiting member is a conical groove, and the first limiting member is a conical protrusion. The conical protrusion on the positioning block can be embedded in the conical groove on the positioning hole.

2. The high-voltage circuit breaker terminal block for easy assembly according to claim 1, characterized in that: The positioning hole has multiple tapered grooves, which are evenly distributed on the inner wall of the positioning hole, and the tapered protrusions on the positioning block are corresponding to the tapered grooves.

3. The high-voltage circuit breaker terminal block for easy assembly according to claim 1 or 2, characterized in that: The terminal connection assembly includes a screw that is rotatably connected to the top side of the terminal housing via a thread. A bearing is fixedly connected to the bottom end of the screw, and a movable plate is fixedly connected to the bottom end of the bearing. A conductive spring is fixedly connected to one end of the movable plate, and one end of the movable plate is electrically connected to one end of the connecting piece via a wire. The bottom end of the movable plate has a downwardly extending extension section. A lower conductive piece is provided at the bottom inside the terminal housing. The lower conductive piece is electrically connected to an elastic positioning groove, and the positioning groove is detachably connected to the movable plate through the extension section.

4. The high-voltage circuit breaker terminal block for easy assembly according to claim 3, characterized in that: The positioning groove includes a base plate, two first side plates and two second side plates disposed on the base plate, the two first side plates being disposed opposite each other, and the two second side plates being disposed at both ends of the two first side plates respectively; the distance between the two second side plates is less than or equal to the width of the extension section, and the distance between the two first side plates is less than or equal to the thickness of the extension section.

5. The high-voltage circuit breaker terminal block for easy assembly according to claim 4, characterized in that: The extension section includes a bent section connected to the movable plate and a vertical section that mates with the positioning groove. The width of the vertical section is greater than the width of the bent section to form two protrusions on both sides of the bent section. The end of the second side plate is provided with a buckle that mates with the protrusions.

6. The high-voltage circuit breaker terminal block for easy assembly according to claim 4, characterized in that: The inner wall of the free end of the first side plate is provided with an inclined surface away from the positioning groove, and the inclined surface makes the thickness of the free end of the first side plate less than the thickness of the bottom of the first side plate.

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