CN213183998U

CN213183998U - Connecting unit and intelligent capacitor

Info

Publication number: CN213183998U
Application number: CN202021848607.2U
Authority: CN
Inventors: 陶显升; 金鑫; 梅耿耿
Original assignee: Delixi Electric Co Ltd
Current assignee: Delixi Electric Co Ltd
Priority date: 2020-08-28
Filing date: 2020-08-28
Publication date: 2021-05-11
Anticipated expiration: 2030-08-28

Abstract

The utility model provides a connecting unit and a capacitor, which belongs to the technical field of capacitors, wherein the connecting unit comprises a through hole wiring frame body and a wiring board, the side wall of the wiring frame body is provided with a threaded hole communicated with the through hole, the wiring board can conduct electricity, one end of the wiring board is fixed, and the other end of the wiring board is inserted into the through hole and can swing; a wiring screw is arranged in the threaded hole, and the bottom of a screw rod of the wiring screw is abutted against the other end of the wiring board. The capacitor comprises a shell, a cover body, a 3P switch correspondingly connected with the three phases of the circuit A, B, C in the shell, and a novel connecting unit adjacent to the 3P switch. The connecting unit has few parts, simple structure and low cost, greatly improves the convenience of the connection of the N-phase wiring lead by arranging the connecting unit near the 3p switch in a built-in mode, simplifies the structure of the N-phase wiring terminal, reduces the cost, facilitates the wiring and is also suitable for practical production.

Description

Connecting unit and intelligent capacitor

Technical Field

The utility model relates to a condenser technical field especially relates to a novel linkage unit and adopt this linkage unit's intelligent condenser.

Background

Since the smart capacitor is provided with A, B, C, N four-phase connection terminals, and since the N-phase connection terminals can be connected through, in order to reduce the cost, in the conventional smart capacitor, a 3P air switch is generally used as the A, B, C three-phase connection terminal, and an independent structure of the N-phase connection terminals is additionally provided.

Currently, the N-phase wiring terminal has the following independent structure: one, external N looks terminal: the independent structure of N looks binding post sets up in the assembly structure that is located A, B, C threephase below and protrusion in the surface setting of intelligent capacitor together with the earth connection post, and this structure necessarily leads to the product degree of depth size to increase, has also improved the cost simultaneously. Second, built-in N looks terminal: the independent structure is arranged inside, blind operation is performed during wiring, and a wiring screw is easy to fall off.

Based on this, the present application is proposed.

Disclosure of Invention

The utility model provides a not enough to prior art, the utility model provides a linkage unit and condenser thereof solves the problem that N looks wiring terminal structure is complicated among the prior art, with high costs, inconvenient wiring, simplifies the independent structure of N looks wiring terminal, makes this structure low cost ization and be convenient for install and use.

In order to achieve the above object, the present invention provides a connection unit, including:

the wiring frame body is configured to be a frame structure with a through opening hole, and a threaded hole communicated with the through opening hole is arranged on the side wall of the wiring frame body;

the wiring board is made of conductive materials and is configured into a pressing structure with one fixed end and the other swingable end, the other end of the wiring board penetrates through the through hole of the wiring frame body, and the surface of the wiring board is parallel to the side wall where the threaded hole is located;

the wiring screw is configured to adjust a gap between the other end of the wiring board and the side wall of the wiring frame body, and one end of the non-nut of the wiring screw penetrates through the threaded hole and then abuts against the other end of the wiring board;

a fixing connector configured to fix one end of the wiring board.

Through four above-mentioned parts, the utility model provides a simple structure, stability are good and the linkage unit of the wiring of being convenient for to, because its simple structure, part are few, not only with low costs, required installation space is little, also be convenient for install and use in the electric installation that the electric capacity is isometric effective, compact structure.

In order to ensure the structural stability of the terminal block and prevent the terminal block from loosening in use, the connecting unit is further provided with the following components: the fixed connecting piece adopts a screw, and the feeding direction of the fixed connecting piece is opposite to that of the wiring screw.

In order to make the structure compact, the connecting unit is further provided with the following components: the width of the wiring board is adapted to the width of the through opening.

For convenience of use, the connecting unit is further provided as follows: one side of the wiring board close to the threaded hole is in clearance fit with the side wall of the threaded hole.

For the convenience of production, the connecting unit is further provided with the following components: the wiring frame body is formed by bending and surrounding a strip-shaped body. In addition, the integrally formed wiring frame body has high structural strength and is suitable for long-term use.

In order to enhance the engagement of the connecting unit with the wires, the connecting unit is further provided with the following components: in the wiring frame body, the inner surface of the side wall opposite to the wiring board is provided with insection.

In order to achieve the above object, the present invention further provides a capacitor, including a housing, a cover body, a 3P switch for corresponding connection with the three phases of the housing internal circuit A, B, C, wherein the 3P switch is mounted with the connecting unit adjacent to the 3P switch as described above: the wiring frame body is arranged in the mounting groove, a through opening of the wiring frame body is opposite to the side opening, a threaded hole of the wiring frame body is opposite to the top opening, a wiring screw penetrates through the top opening and is arranged in the threaded hole in a threaded manner, and one end of the wiring board is fixed in the fixing hole through a fixing connecting piece; the wiring board is correspondingly connected with the inner circuit N of the shell.

For easy installation, the capacitor is further arranged as follows: the mounting groove is a frame groove, and an opening of the frame groove is opposite to the side opening.

The capacitor described above is further arranged as follows: the patch panel extends to the side opening.

The utility model has the advantages as follows: the utility model provides a linkage unit only includes four parts, and it can be with treating the wire of connecting stably fixing among the above-mentioned clearance through clearance fit between wiring board and the wiring framework, combination wiring screw. The connecting structure has the advantages of few parts, simple structure, low cost and convenient connection.

The utility model discloses a set up the linkage unit with built-in mode near 3p switch, nevertheless simultaneously, provide the independent wiring structure that the structure is more simple, installation and use are more convenient through the linkage unit, greatly improved the convenience of the connection of N looks wiring wire, also simplified the structure, the reduce cost of N looks wiring terminal with this, also be suitable for actual production.

Drawings

Fig. 1 is an overall schematic view of a capacitor according to an embodiment of the present invention.

Fig. 2 is a schematic side view of a capacitor according to an embodiment of the present invention.

Fig. 3 is an assembly diagram of the connection unit according to the embodiment of the present invention.

Fig. 4 is a schematic structural diagram of a connection unit according to an embodiment of the present invention.

Reference numerals: 1-cover body, 2-shell, 3-3P switch, 4-connecting unit;

101-top opening, 102-side opening, 103-mounting frame groove, 401-binding screw, 402-binding frame body, 403-binding plate, 404-fixing screw, 103 a-frame, 402 a-through opening, 402 b-overlapping structure, 402 c-insection, 402 b-1-threaded hole.

Detailed Description

Embodiment 1 provides a connection unit 4, which includes a connection frame 402, a wiring board 403, a wiring screw 401 and a fixing screw 404, wherein the connection frame 402 is a frame 103a formed by bending and surrounding a strip-shaped plate with a certain length and width, and a through opening 402a is formed in the middle of the connection frame, and for convenience of subsequent description, the through opening 402a is defined as an opening structure in the front and back directions. Of course, in one embodiment, the strip-shaped plate is folded and surrounded, and the butt joint is designed to have an overlapping and staggered structure as shown in fig. 4, so that the overlapping structure 402b can ensure the structural strength and stability of the butt joint, and further has sufficient compression resistance when serving as the fulcrum of the binding screw 401. In this embodiment, the overlapping structure is provided with a threaded hole 402b-1 communicating with the through opening 402a, and the binding screw 401 is threaded into the threaded hole 402b-1, i.e., the bottom of the screw rod enters the through opening 402a through the threaded hole 402 b-1.

Alternatively, in other embodiments, the frame 103a may be an integrated ring structure formed by casting, 3D printing, injection molding, or the like.

With continued reference to fig. 4, the wiring board 403 is a conductive flat plate having a certain length and width, the width of the conductive flat plate is adapted to the width of the cross section of the through hole 402a of the wiring frame 402, one end of the conductive flat plate is provided with a threaded connection hole, the connection position of the wiring screw 401 and the wiring frame 402 is up, the screw of the conductive flat plate faces down, the screw of the fixing screw 404 is threaded upwards into the threaded connection hole and is used for fixedly connecting with the housing 2, so that the wiring board 403 is kept at a fixed position where the other end thereof is inserted into the through hole 402a and is close to the upper side wall of the wiring frame 402.

Accordingly, the bottom of the screw rod of the binding screw 401 inserted into the through opening 402a is just abutted against the free end of the terminal plate 403, and since the feeding direction of the fixing screw 404 is opposite to that of the binding screw 401, the fixing screw 404 prevents the terminal plate 403 from being detached due to the pressing force of the binding screw 401, ensuring the structural stability of the connection unit 4.

In this embodiment, by adjusting the feeding depth of the binding screw 401 relative to the binding frame 402, the size of the gap between the wiring board 403 and the lower sidewall of the binding frame 402 can be adjusted to accommodate the insertion and fixation of the connecting wire into the gap.

In the above structure, the conductive plate can be made of a metal conductor, such as steel or copper.

In addition, in the above embodiment, in order to enhance the pressing force of the wiring board 403 and the wiring frame body 402 against the connection wires under the pressure of the wiring screw 401, the inner surface of the lower side wall of the wiring frame body 402 may be provided with the strip-shaped insection 402c, and the connection wires inserted into the gap between the wiring board 403 and the wiring frame body 402 are engaged with the strip-shaped insection, thereby securing the connection wires by the connection unit 4. Of course, the lower surface of the terminal plate 403 may also be provided with corresponding insections 402c for enhancing the biting force.

Embodiment 2 this embodiment provides a connection unit 4, which is different from embodiment 1 in that the cross section of the through hole 402a of the terminal block body 402 in this embodiment has a tapered structure such as a taper or a trapezoid, the large opening side of the tapered structure communicates with the screw hole 402b-1, and the shape of the terminal block 403 is adapted to the structure of the through hole 402 a.

Embodiment 3 this embodiment provides a capacitor, which includes a housing 2, a cover 1, and a 3P switch 3, and an electric element such as a capacitor, a switching module, and a temperature sensor installed inside the housing 2, and a circuit board correspondingly installed thereon, from which A, B, C three-phase power lines are led out. The cover body 1 and the shell 2 can be covered to completely seal the structure so as to protect the structure from external influence. The 3P switch 3 is installed on the top of the housing 2, and is used for connecting A, B, C three-phase power lines correspondingly and forming a A, B, C three-phase wiring terminal. The cover body 1 is provided with corresponding operation openings corresponding to the wiring ports, the rotating handle and other structures needing external operation of the 3P switch 3.

Referring to fig. 1, in the present embodiment, the connecting unit 4 as described above is installed on the right side edge of the 3P switch 3, the connecting unit 4 is disposed adjacent to the 3P switch 3 and is embedded in the inner space formed by the cover body 1 and the housing 2, and the following detailed description will be made by taking a preferred embodiment of the embodiment 1 as an example: in this embodiment, the connecting unit 4 is mainly disposed on the cover body 1, and specifically, the following is provided: first, the cover body 1 is provided with an attachment frame groove 103 for attaching the wiring frame body 402 and a fixing hole, and the fixing hole is provided adjacent to the attachment frame groove 103 and preferably in close contact with the attachment frame groove 103.

As the name implies, in the present embodiment, the mounting frame groove 103 is a frame-shaped groove, the mounting frame groove 103 is disposed close to the top and the rear side of the cover body 1, and the top and the rear side of the cover body 1 are respectively provided with a top opening 101 and a side opening 102 communicated with the mounting groove. The opening of the middle part of the mounting frame groove 103 is opposite to the side opening 102, and is preferably integrated into a whole structure, and the top of the mounting frame groove 103 is also provided with a corresponding opening corresponding to the top opening 101.

The binding frame body 402 is mounted in the mounting groove, the through opening 402a is arranged opposite to the side opening 102, the threaded hole 402b-1 is opposite to the top opening 101, and the binding screw 401 is screwed into the threaded hole 402b-1 of the binding frame body 402 after passing through the top opening 101 and the opening of the mounting frame groove 103 in sequence from the top of the cover body 1. To limit the swing range of the binding screw 401, the sizes of the top opening 101 and the opening of the mounting frame slot 103 are preferably adapted to the sizes of the nut and the screw of the binding screw 401, respectively.

As described above, when the terminal block 403 is mounted, the other end thereof is inserted into the through hole 402a from the front to the back (the side facing the user when the capacitor is used is the front side, and the side where the 3P switch 3 is provided is generally the back side), and then one end of the terminal block 403 is fixed by the fixing screw 404 while the upper surface of the other end of the terminal block 403 is made as close as possible to the top of the terminal block body 402 so as to abut against the end of the terminal screw 401 that extends into the through hole 402 a. And the wiring board 403 is electrically connected correspondingly to the internal circuit N of the housing 2.

In a preferred embodiment, the terminal plate 403 may be extended to the side opening 102, and by lengthening the length of the terminal plate 403, the length of the contact section of the terminal plate 403 with the wires inserted therein may be lengthened accordingly, further ensuring stability of the connection of the wires to the terminals.

In the above embodiment, self-tapping screws may be used to tightly fit and fix the wiring board 403 to the corresponding mounting holes on the cover 1; or, an insert can be added in the hole of the corresponding mounting hole on the cover 1, and the common screw 7 is matched to fix one end of the wiring board 403 on the cover 1. In addition to the structure mentioned in the present embodiment, other types of connectors should also be included in the scope of the present invention.

To sum up, the utility model provides a connecting element 4 that the part is few, simple structure, with low costs, be convenient for connect and adopt this connecting element 4 as the condenser that N looks wiring terminal used, its stability through simplifying connection structure and strengthening connection structure when satisfying present user demand, has also improved the performance of product.

Claims

1. A connection unit, characterized by: the method comprises the following steps:

a fixing connector configured to fix one end of the wiring board.

2. The connection unit of claim 1, wherein: the fixed connecting piece adopts a screw, and the feeding direction of the fixed connecting piece is opposite to that of the wiring screw.

3. A connection unit as claimed in claim 1 or 2, characterized in that: the width of the wiring board is adapted to the width of the through opening.

4. The connection unit of claim 3, wherein: one side of the wiring board close to the threaded hole is in clearance fit with the side wall of the threaded hole.

5. A connection unit as claimed in any one of claims 1, 2 and 4, wherein: the wiring frame body is formed by bending and surrounding a strip-shaped body.

6. The connection unit of claim 5, wherein: in the wiring frame body, the inner surface of the side wall opposite to the wiring board is provided with insection.

7. A smart capacitor comprising a housing, a cover, and a 3P switch for three-phase corresponding connection to an electrical circuit A, B, C inside the housing, wherein a connection unit according to any one of claims 1-6 is mounted adjacent to the 3P switch: the wiring frame body is arranged in the mounting groove, a through opening of the wiring frame body is opposite to the side opening, a threaded hole of the wiring frame body is opposite to the top opening, a wiring screw penetrates through the top opening and is arranged in the threaded hole in a threaded manner, and one end of the wiring board is fixed in the fixing hole through a fixing connecting piece; the wiring board is correspondingly connected with the inner circuit N of the shell.

8. The smart capacitor of claim 7, wherein: the mounting groove is a frame groove, and an opening of the frame groove is opposite to the side opening.

9. The smart capacitor of claim 7 or 8, wherein: the patch panel extends to the side opening.