Electric connection fastening device
Patent Information
- Application Number
- CN202422356820.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-25
- Publication Date
- 2025-08-29
- Estimated Expiration
- 2034-09-25
Smart Images
Figure CN223285281U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of electrical connection, in particular to an electrical connection fastening device. Background Art
[0002] Electrical switches are widely used in industrial applications and are commonly used to control the power supply of electrical equipment in electrical control boxes. Currently, the electrical connections of the wiring (specifically copper busbars and copper bars) in electrical switch control boxes are mostly welded. If the connection position or the adaptation distance needs to be adjusted, the solder joints need to be disconnected and then re-welded after the connection is completed. This operation is more troublesome and not easy to be frequently disassembled and assembled. Utility Model Content
[0003] In view of this, the utility model provides an electrical connection fastening device to solve the problem that the electrical connection structure of the copper busbar and the copper bar in the electrical switch control box is difficult to disassemble and assemble.
[0004] The utility model provides an electrical connection and fastening device, which is applied to an electrical switch. The electrical connection and fastening device includes a first connection part and a second connection part arranged at intervals along a first direction, at least one of the first connection part and the second connection part is used to be connected to the electrical switch; a third connection part is provided between the first connection part and the second connection part, and a clamping area between the first connection part, the second connection part and the third connection part forms a mounting groove, the first connection part and the second connection part are both penetrated by a first through hole formed along the first direction, the first through hole is connected to the mounting groove, and the first through hole is used for movable insertion of a copper bus and a copper bar; a tightening member is provided on the third connection part for sliding along the second direction, and the tightening member is locked by a locking assembly; the first direction and the second direction are perpendicular to each other.
[0005] According to the electrical connection fastening device of the utility model, there are at least the following beneficial effects:
[0006] A first through hole is formed by aligning the first connecting portion and the second connecting portion and penetrating along the first horizontal direction, and a tightening member is slidably provided on the third connecting portion along the second direction; when the copper busbar and the copper bar are arranged and connected in a cross-vertical shape, it is only necessary to pass the two ends of the copper busbar along the first direction through the two first through holes respectively, and then arrange the copper bar in the installation groove along the third direction and overlap the upper end surface of the copper busbar, and then lower the tightening member along the second direction to tighten it to the upper end surface of the copper bar and lock it through the locking assembly; when the copper busbar and the copper bar are arranged and connected in a straight line along the first direction, it is only necessary to lower the copper busbar along the first direction The two ends of the copper bar pass through the two first through holes respectively, and then the copper bar is arranged in the installation groove along the first direction and overlapped on the upper end surface of the copper bar, and then the tightening member is lowered along the second direction to tighten against the upper end surface of the copper bar and locked by the locking assembly; when the copper bar and the copper bar are separated and the connection position is adjusted, it is only necessary to unlock the locking assembly and raise the tightening member along the second direction to remove the tightening force applied to the copper bar; the copper bar and the copper bar are detachably connected into one in a cross vertical shape and in a straight line along the first direction, so that the electrical connection structure of the copper bar and the copper bar can be disassembled and assembled.
[0007] In an optional embodiment, the third connecting portion is penetrated by an internal threaded through hole along the second direction, and the locking assembly includes an external threaded portion arranged on the outer peripheral surface of the tightening member, and the external threaded portion matches the internal threaded through hole.
[0008] In an optional embodiment, a connecting platform is protruded from one end of the third connecting portion toward the mounting groove, and the internal threaded through hole passes through the connecting platform along the second direction.
[0009] In an optional embodiment, the connection between the connecting platform and the third connecting portion is smoothly transitioned;
[0010] And / or, a size of the connecting platform along the second direction is 1 to 2 times a size of the third connecting portion along the second direction.
[0011] In an optional embodiment, a pressing plate is provided at one end of the pressing member facing the mounting groove, and a projection of the pressing member along the second direction falls within the range of the pressing plate.
[0012] In an optional embodiment, the first connecting portion, the second connecting portion and the third connecting portion form a "U"-shaped structure and are integrally bent.
[0013] In an optional embodiment, a crossbeam is provided between the first connecting portion and the second connecting portion, the crossbeam is located relatively below the third connecting portion along the second direction, and the crossbeam is used to support the copper busbar and the copper strip.
[0014] In an optional embodiment, both ends of the crossbeam are detachably inserted into the two first through holes.
[0015] In an optional embodiment, the inner bottom wall of the first through hole is recessed with a first limiting groove, the crossbeam is provided with a first limiting portion, and the first limiting portion matches the first limiting groove;
[0016] Alternatively, a second limiting portion is protruding from the inner bottom wall of the first through hole, and a second limiting groove is provided on the crossbeam, and the second limiting groove matches the second limiting portion.
[0017] In an optional embodiment, the first through hole includes a rectangular portion and an arched portion, and the arched portion is located at an opposite upper end of the rectangular portion along the second direction. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.
[0019] Figure 1 This is a three-dimensional structural view of an electrical connection fastening device according to an embodiment of the present invention assembling copper bars and copper strips arranged vertically in a cross shape;
[0020] Figure 2 for Figure 1 Schematic diagram of the three-dimensional structure of the middle part;
[0021] Figure 3 for Figure 2 Schematic diagram of the cross-sectional side view structure.
[0022] Description of reference numerals:
[0023] 110 - first connecting portion, 120 - second connecting portion, 130 - third connecting portion, 131 - internal threaded through hole, 132 - connecting platform, 140 - mounting slot, 150 - first through hole, 151 - first limiting slot, 152 - rectangular portion, 153 - arched portion;
[0024] 210-copper busbar, 220-copper bar;
[0025] 300- tightening member, 310- external threaded portion, 320- pressure plate. DETAILED DESCRIPTION
[0026] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the embodiments described are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without making creative efforts shall fall within the scope of protection of the present invention.
[0027] In the description of this embodiment, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate the description of this embodiment and simplify the description. They do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this embodiment. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0028] In the description of this embodiment, it should be noted that, unless otherwise specified or limited, the terms "mounted," "connected," and "connected" should be understood broadly. For example, they may refer to fixed, detachable, or integral connections; mechanical or electrical connections; direct or indirect connections through an intermediary; and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this embodiment based on specific circumstances.
[0029] In the related art, the electrical connections of the wiring (specifically, the copper busbars and copper bars) in the electrical switch control box are mostly welded. If the connection position or the fitting distance needs to be adjusted, the solder joints need to be disconnected, and then re-welded after the connection is completed. This operation is cumbersome and difficult to perform frequently. Moreover, after disconnecting the solder joints to complete the connection and then re-welding, the weld tightness is likely to fluctuate greatly from the previous weld tightness, resulting in the tightness of the connection between the copper busbar and the copper bar cannot be guaranteed. In order to solve the above technical defects, an electrical connection fastening device according to an embodiment of the present invention is provided.
[0030] The following combination Figures 1 to 3 , describing the embodiments of the present utility model.
[0031] According to an embodiment of the present invention, an electrical connection and fastening device is provided, which is applied to an electrical switch. The electrical connection and fastening device includes a first connection part 110 and a second connection part 120 arranged at intervals along a first direction, and the first connection part 110 and the second connection part 120 are used to connect to the set position of the electrical switch; a third connection part 130 is provided between the first connection part 110 and the second connection part 120, and a mounting groove 140 is formed in the clamping area between the first connection part 110, the second connection part 120 and the third connection part 130, and the first connection part 110 and the second connection part 120 are both formed with a first through hole 150 along the first direction, and the first through hole 150 is connected to the mounting groove 140, and the first through hole 150 and the mounting groove 140 are both used for the movable insertion of the copper bus 210 and the copper bar 220; a tightening member 300 is provided on the third connection part 130 so as to slide along the second direction, and the tightening member 300 is locked by a locking assembly. It can be understood that the first direction, the second direction and the third direction mentioned herein refer to Figure 1 The first direction, the second direction and the third direction are perpendicular to each other.
[0032] The electrical connection fastening device of this embodiment forms a first through hole 150 by aligning the first connecting portion 110 and the second connecting portion 120 along the first horizontal direction, and a pressing member 300 is slidably provided on the third connecting portion 130 along the second direction; when the copper busbar 210 and the copper bar 220 are arranged and connected in a cross-vertical shape, it is only necessary to pass the two ends of the copper busbar 210 along the first direction through the two first through holes 150 respectively, and then arrange the copper bar 220 in the mounting groove 140 along the third direction and overlap the upper end surface of the copper busbar 210, and then lower the pressing member 300 along the second direction to press against the upper end surface of the copper bar 220 and lock it by the locking assembly (such as Figure 1 As shown); when the copper bus 210 and the copper bar 220 are arranged and connected in a straight line along the first direction, it is only necessary to pass the two ends of the copper bus 210 in the first direction through the two first through holes 150 respectively, and then arrange the copper bar 220 in the mounting groove 140 in the first direction and overlap the upper end surface of the copper bus 210, and then lower the pressing member 300 in the second direction to press against the upper end surface of the copper bar 220 and lock it through the locking assembly; when the copper bus 210 and the copper bar 220 are separated and the connection position is adjusted, it is only necessary to unlock the locking assembly and raise the pressing member 300 in the second direction to remove the pressing force applied to the copper bar 220; the copper bus 210 and the copper bar 220 are detachably connected to form a whole in a cross vertical shape and in a straight line along the first direction, so that the electrical connection structure of the copper bus 210 and the copper bar 220 can be disassembled and assembled.
[0033] The specific structure of the locking assembly of this embodiment and the positional relationship between the locking assembly and the pressing member 300 are described in detail below.
[0034] like Figures 1 to 3 As shown, in some embodiments, the third connection portion 130 is formed with an internal threaded through hole 131 along the second direction, and the locking assembly includes an external threaded portion 310 provided on the outer peripheral surface of the pressing member 300, and the external threaded portion 310 matches the internal threaded through hole 131. By simplifying the locking assembly and the pressing member 300 to form a whole, the volume of the electrical connection fastening device of this embodiment is made smaller, which is conducive to the development of electrical switches in the direction of simplicity and miniaturization; at the same time, by providing the internal threaded through hole 131 on the third connection portion 130, when assembling and connecting the copper bus 210 and the copper bar 220, it is only necessary to arrange the copper bus 210 and the copper bar 220 according to the actual required shape, and then rotate the pressing member 300 so that the pressing member 300 descends along the second direction until it presses against the upper end surface of the copper bar 220. Yes; when the copper bus 210 and the copper bar 220 are separated and the connection position is adjusted, it is only necessary to rotate the tightening member 300 so that the tightening member 300 rises along the second direction to remove the tightening force applied to the copper bar 220; the entire disassembly and assembly process is easy to operate, especially suitable for frequent disassembly and assembly, and each time the tightening member 300 is rotated and lowered to a position tightened against the upper end surface of the copper bar 220, basically the same tightening force is applied to the copper bar 220, ensuring the tightness of the connection between the copper bus 210 and the copper bar 220 after disassembly and reassembly.
[0035] like Figure 3 As shown, specifically, a connecting platform 132 is provided on one end of the third connecting portion 130 facing the mounting groove 140, and the internal threaded through hole 131 passes through the connecting platform 132 along the second direction. The addition of the connecting platform 132 increases the threaded connection area between the external threaded portion 310 and the internal threaded through hole 131, thereby improving the connection strength.
[0036] Specifically, the connection between the connecting platform 132 and the third connecting portion 130 is smoothly transitioned, thereby improving the structural strength of the connection between the connecting platform 132 and the third connecting portion 130 .
[0037] Specifically, the size of the connecting platform 132 along the second direction is 1 to 2 times, preferably 1.6 times, of the size of the third connecting portion 130 along the second direction, to ensure the strength of the threaded connection.
[0038] like Figure 1As shown, specifically, a pressure plate 320 is provided at one end of the tightening member 300 facing the mounting groove 140, and the projection of the tightening member 300 along the second direction falls within the range of the pressure plate 320. By adding a pressure plate 320 with a larger cross-sectional area than the tightening member 300 to form a transition connection, the tightening contact area with the upper end surface of the copper bar 220 is increased, ensuring the tightening force applied to the upper end surface of the copper bar 220. Furthermore, because the outer contour of the pressure plate 320 is larger than the aperture of the internally threaded through-hole 131, it can effectively prevent the tightening member 300 from disengaging from the internally threaded through-hole 131 during the process of rotating the tightening member 300 to raise it in the second direction. More specifically, the cross-sectional area of the pressure plate 320 is larger than the cross-sectional area of the connecting platform 132.
[0039] In addition, in other embodiments, the third connecting portion 130 is formed with a square hole along the second direction, the pressing member 300 is slidably arranged in the square hole, the locking assembly includes a locking rod, the locking rod is slidably arranged on the side wall of the pressing member 300 along the first direction, and a spring is arranged between the locking rod and the pressing member 300; the surrounding wall of the square hole is formed with a locking hole along the first direction, and the locking hole matches the locking rod; when the copper bus 210 and the copper bar 220 are assembled and connected, it is only necessary to assemble the copper bus 210 and the copper bar 220 according to the first direction. The actual required shape is arranged, and then the locking piece is pressed down to apply a tightening force on the upper end surface of the copper bar 220. At this time, the locking rod and the lock hole are aligned along the first direction, and the locking rod is inserted into the lock hole under the action of the elastic force of the spring to achieve locking; when the copper bus 210 and the copper bar 220 are separated and the connection position is adjusted, the operator only needs to use a push rod to insert into the lock hole and push the locking rod to squeeze the spring to deform and detach from the lock hole, and then pull the tightening piece 300 upwards; the entire disassembly and assembly process is easy to operate.
[0040] The relative positional relationship among the first connection portion 110 , the second connection portion 120 and the third connection portion 130 of this embodiment will be described in detail below.
[0041] like Figure 2 As shown, in some embodiments, the first connecting part 110, the second connecting part 120 and the third connecting part 130 form a "U"-shaped structure and are bent into an integral part; the assembly processes such as welding between the first connecting part 110, the second connecting part 120 and the third connecting part 130 are eliminated, and the strength of the "U"-shaped structure is improved.
[0042] like Figure 2As shown, specifically, the distance between the left surrounding wall of the first through hole 150 along the third direction and the left side wall of the first connecting part 110 along the third direction is 0.8 times to 1.5 times the thickness of the first connecting part 110; the distance between the right surrounding wall of the first through hole 150 along the third direction and the right side wall of the first connecting part 110 along the third direction is 0.8 times to 1.5 times the thickness of the first connecting part 110; the distance between the lower surrounding wall of the first through hole 150 along the second direction and the lower end surface of the first connecting part 110 along the second direction is 0.8 times to 1.5 times the thickness of the first connecting part 110.
[0043] In addition, in other embodiments, the first connecting portion 110 , the second connecting portion 120 and the third connecting portion 130 form an “H”-shaped structure.
[0044] In some embodiments, a crossbeam is provided between the first connecting portion 110 and the second connecting portion 120 . The crossbeam is located relatively below the third connecting portion 130 along the second direction. The crossbeam is used to support the copper busbar 210 and the copper strip 220 . When the copper bus 210 and the copper bar 220 are arranged and connected in a straight line along the third direction, the copper bus 210 is first arranged in the mounting groove 140 along the third direction and overlapped with the upper end surface of the beam, and then the copper bar 220 is arranged in the mounting groove 140 along the third direction and overlapped with the upper end surface of the copper bus 210, and then the tightening member 300 is rotated so that the tightening member 300 is lowered in the second direction until it is tightened against the upper end surface of the copper bar 220; when the copper bus 210 and the copper bar 220 are disassembled and the connection position is adjusted, it is only necessary to rotate the tightening member 300 so that the tightening member 300 is raised in the second direction to remove the tightening force applied to the copper bar 220; the copper bus 210 and the copper bar 220 are detachably connected into one body in a cross vertical shape, in a straight line along the first direction, and in a straight line along the third direction, so that the copper bus 210 and the copper bar 220 can be disassembled and assembled in a variety of arrangement methods.
[0045] Specifically, both ends of the crossbeam are detachably inserted into the two first through holes 150. When it is not necessary to assemble the copper bus 210 and the copper bar 220 in a straight line along the third direction, the crossbeam can be removed to avoid interference with the assembly in the other two arrangements.
[0046] Specifically, the inner bottom wall of the first through hole 150 is recessed with a first limiting groove 151, and the crossbeam is provided with a first limiting portion, and the first limiting portion matches the first limiting groove 151. Through the cooperation between the first limiting portion and the first limiting groove 151, the crossbeam is restricted from falling and causing a short circuit during the process of assembling the copper bus 210 and the copper bar 220 in a straight line along the third direction. As another alternative to this embodiment, the inner bottom wall of the first through hole 150 is provided with a second limiting portion, and the crossbeam is provided with a second limiting groove, and the second limiting groove matches the second limiting portion.
[0047] Specifically, two cross beams are provided, and the two cross beams are spaced apart along the third direction.
[0048] like Figure 3 As shown, in some embodiments, the first through hole 150 includes a rectangular portion 152 and an arched portion 153, wherein the arched portion 153 is located at the upper end of the rectangular portion 152 along the second direction. The arched portion 153 is used to improve the deformation resistance of the first connecting portion 110 and the second connecting portion 120 during the process of fastening the copper busbar 210 and the copper strip 220.
[0049] Specifically, the size of the arched portion 153 along the second direction is 15% to 18% of the size of the rectangular portion 152 along the second direction.
[0050] Although the embodiments of the present invention have been described with reference to the accompanying drawings, those skilled in the art may make various modifications and variations without departing from the spirit and scope of the present invention, and such modifications and variations shall fall within the scope defined by the appended claims.
Claims
1. An electrical connection fastening device, applied to an electrical switch, characterized in that: The electrical connection fastening device comprises a first connection portion (110) and a second connection portion (120) arranged at intervals along a first direction, at least one of the first connection portion (110) and the second connection portion (120) being used to connect to an electrical switch; a third connection portion (130) is provided between the first connection portion (110) and the second connection portion (120), and a clamping area between the first connection portion (110), the second connection portion (120) and the third connection portion (130) forms a mounting groove ( 140), the first connecting portion (110) and the second connecting portion (120) are both formed with a first through hole (150) along the first direction, the first through hole (150) is connected to the mounting groove (140), and the first through hole (150) is used for movably inserting the copper busbar (210) and the copper bar (220); a tightening member (300) is provided on the third connecting portion (130) for sliding along the second direction, and the tightening member (300) is locked by a locking assembly; the first direction and the second direction are perpendicular to each other.
2. An electrical connection fastening device according to claim 1, characterized in that: The third connecting portion (130) is penetrated along the second direction to form an internal threaded through hole (131), and the locking assembly includes an external threaded portion (310) arranged on the outer peripheral surface of the pressing member (300), and the external threaded portion (310) matches the internal threaded through hole (131).
3. An electrical connection fastening device according to claim 2, characterized in that: A connecting platform (132) is protruded from one end of the third connecting portion (130) facing the mounting groove (140), and the internal threaded through hole (131) passes through the connecting platform (132) along the second direction.
4. An electrical connection fastening device according to claim 3, characterized in that: The connection between the connecting platform (132) and the third connecting portion (130) is smoothly transitioned; And / or, the size of the connecting platform (132) along the second direction is 1 to 2 times the size of the third connecting portion (130) along the second direction.
5. The electrical connection fastening device according to claim 2, characterized in that: A pressing plate (320) is provided at one end of the pressing member (300) facing the mounting groove (140), and a projection of the pressing member (300) along the second direction falls within the range of the pressing plate (320).
6. The electrical connection fastening device according to claim 1, characterized in that: The first connecting portion (110), the second connecting portion (120) and the third connecting portion (130) form a "U"-shaped structure and are integrally bent.
7. An electrical connection fastening device according to any one of claims 1 to 6, characterized in that: A crossbeam is provided between the first connecting portion (110) and the second connecting portion (120), the crossbeam being located relatively below the third connecting portion (130) along the second direction, and the crossbeam being used to carry the copper busbar (210) and the copper strip (220).
8. The electrical connection fastening device according to claim 7, characterized in that: The two ends of the crossbeam are respectively detachably plugged into the two first through holes (150).
9. The electrical connection fastening device according to claim 8, characterized in that: The inner bottom wall of the first through hole (150) is concavely provided with a first limiting groove (151), and the crossbeam is provided with a first limiting portion, and the first limiting portion matches the first limiting groove (151); Alternatively, the inner bottom wall of the first through hole (150) is convexly provided with a second limiting portion, the crossbeam is provided with a second limiting groove, and the second limiting groove matches the second limiting portion.
10. The electrical connection fastening device according to claim 1, characterized in that: The first through hole (150) comprises a rectangular portion (152) and an arched portion (153), wherein the arched portion (153) is located at an upper end of the rectangular portion (152) along the second direction.