CN211789601U - Electrical connection structure suitable for electrical protection shell - Google Patents
Electrical connection structure suitable for electrical protection shell Download PDFInfo
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- CN211789601U CN211789601U CN202020801450.1U CN202020801450U CN211789601U CN 211789601 U CN211789601 U CN 211789601U CN 202020801450 U CN202020801450 U CN 202020801450U CN 211789601 U CN211789601 U CN 211789601U
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Abstract
The utility model relates to the technical field of electrical equipment, in particular to an electrical connection structure suitable for an electrical protection shell, which comprises a fixed terminal component and a front panel component, wherein the fixed terminal component comprises a fixed terminal and a fixed terminal seat, the front panel component comprises a movable terminal, a movable terminal seat, a bolt and a front panel, the upper end of the fixed terminal is immersed in the fixed terminal seat, the lower end of the fixed terminal penetrates out of the lower end face of the fixed terminal seat, a first electrical connection hole is arranged on the fixed terminal seat, and a convex end is arranged on the fixed terminal; the upper end of the movable terminal is arranged above the movable terminal seat through a bolt, the lower end of the movable terminal is positioned in a second electrical connecting hole of the movable terminal seat, and the protruding end of the fixed terminal penetrates through the first electrical connecting hole; the front end panel is provided with a bolt hole and a third electric connecting hole; the fixed terminal base is provided with a boss protruding forwards. The utility model discloses strengthened the electrical connection structure's of product stability, difficult not hard up after the cable inserts.
Description
Technical Field
The utility model relates to an electrical equipment technical field, concretely relates to electrical connection structure suitable for electrical protection shell.
Background
In general, electrical apparatuses such as relays and protection devices commonly used in industry or electric power use an electrical protection housing made of insulating materials such as plastics to encapsulate devices such as electronic components or circuit boards therein, so as to protect electrical structures. An electrical connection structure, generally two independent metal connection terminals, is mounted on the electrical protection enclosure, one of the connection terminals is connected to a circuit board disposed in the electrical protection enclosure, and the connection structure is used to electrically connect an external electric wire and cable to the circuit board inside the enclosure. When the installation is used, insert the outside cable in the terminal opening that has set up connecting terminal in the lateral part panel on the electrical protection shell, two connecting terminal centre gripping and fastening of mode such as rethread bolt make the cable to realize the electrical connection of outside cable and circuit board.
However, such prior art electrical connection structures are typically manufactured separately and then installed in the corresponding portions of the side panels of the housing in a certain order and process of assembly. Therefore, in the production and manufacturing process of the housing, a space for installing such an electrical connection structure must be designed and left in advance. The manufacturing process is increased, an additional assembly process is required, the production cost and the production time are increased invisibly, and the production efficiency is influenced. Moreover, the structural strength of the assembled product can be influenced by the separated structural form when the device is used, so that the connecting terminal of the connecting circuit board has a certain moving stroke in the mounting cavity or the mounting hole of the electric protection shell, and the circuit board is easy to drive to loosen together.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide an electrical connection structure suitable for electrical protection shell solves above technical problem.
The utility model provides a technical problem can adopt following technical scheme to realize:
an electrical connection structure adapted for an electrical protective enclosure, comprising a front panel assembly and a fixed terminal assembly, the front panel assembly being located on a front side of the fixed terminal assembly, the fixed terminal assembly being connected to a circuit board located in an interior cavity of the electrical protective enclosure, wherein the front panel assembly comprises a front panel, a movable terminal block, a movable terminal and a bolt;
the fixed terminal assembly comprises a fixed terminal and a fixed terminal seat, the fixed terminal is used for connecting a circuit board in an inner cavity of the electric protection shell, the movable terminal and the fixed terminal form a clamping structure, and then the movable terminal and the fixed terminal clamp an external access cable after adjusting a clamping distance through a bolt, so that the circuit board is electrically connected with the external access cable;
the fixed terminal is arranged in the fixed terminal seat, the upper end of the fixed terminal is immersed in the fixed terminal seat, the lower end of the fixed terminal penetrates out of the lower end face of the fixed terminal seat, a first electrical connecting hole is formed in the fixed terminal seat, and a protruding end protruding forwards is formed in the fixed terminal;
the upper end of the movable terminal is arranged above the movable terminal seat through a bolt, the lower end of the movable terminal is positioned in a second electrical connecting hole arranged on the movable terminal seat, the protruding end of the fixed terminal penetrates through the first electrical connecting hole and then is positioned below the lower end of the movable terminal in the second electrical connecting hole, the movable terminal seat and the fixed terminal form a clamping structure, the bolt is screwed in and out of the movable terminal seat to drive the movable terminal to lift, and therefore the clamping structure formed by the lower end of the movable terminal and the protruding end of the fixed terminal achieves clamping action and releasing action;
a bolt hole and a third electrical connection hole are formed in the front end panel, a bolt on the movable terminal seat is adjusted after the bolt hole is penetrated through by a tool such as a screwdriver, and an external cable is clamped by the clamping structure after sequentially penetrating through the third electrical connection hole, the second electrical connection hole and the first electrical connection hole;
the fixed terminal seat is provided with a boss protruding forwards, and when the front panel is matched and connected with other panels of the electric protection shell, the movable terminal seat is pressed downwards on the boss of the fixed terminal seat.
The utility model discloses a set up fixed terminal subassembly and front panel subassembly and realized the fixed terminal that imbeds in the lateral part panel of electrical protection shell, the movable terminal of the mobile lift of cooperation realizes the clamping action to stretching into the wire and cable in the electrical connection hole.
The fixed terminal with the stiff terminal seat is the integration injection moulding structure, the fixed terminal imbed in inside the fixed terminal seat, and, the lower extreme of fixed terminal is worn out the lower terminal surface of fixed terminal seat, accessible injection moulding process realizes making during the manufacturing, places the fixed terminal of metal in the injection mold of fixed terminal seat earlier, forms the integral structure after moulding plastics again, when installation electrical protection shell, realizes electrical connection after the one end of wearing out the lower part of fixed terminal is pegged graft with the corresponding hole site of circuit board, also can carry out the welding process of hookup location on this basis.
Be equipped with downward bellied positioning groove board on the stiff terminal seat, correspond the positioning groove board is in be equipped with the constant head tank on the circuit board, during installation electrical protection shell, when the one end that the lower part of fixed terminal was worn out was pegged graft with the hole site of being connected of circuit board, positioning groove board and constant head tank peg graft, positioning groove board not only is used for the location when installing, also is used for consolidating the joint strength and the connection structure's of the stiff terminal seat of integral structure and circuit board stability.
And the left side surface and/or the right side surface of the fixed terminal are/is provided with a sawtooth structure.
The utility model discloses an arbitrary side in two sides about fixed terminal, perhaps set up the serration structure on the both sides face for by the injection moulding material in the undulation structure that makes the sawtooth when carrying out integration injection moulding, form more firm structural connection through serration structure and injection molding cooperation.
The fixed terminal is provided with a fixed terminal hole which is of a through hole structure.
The utility model discloses a set up the fixed terminal hole on the fixed terminal, at the integration forming process, make downthehole also injected into the shaping material to additional strengthening connects.
The outer surface of the protruding end of the fixed terminal is provided with a groove structure.
The utility model discloses a protruding end surface at fixed terminal sets up groove structure, makes fixed terminal and fixed terminal seat increase the structural strength after moulding plastics when carrying out the integrated into one piece.
And the outer surface of the convex end of the fixed terminal is provided with a convex structure.
The utility model discloses a surface at the protruding end of fixed terminal sets up protruding structure and is convenient for make the cable pressed tighter, in addition, when it and movable terminal constitute clamping structure and carry out the centre gripping to the cable of outside access, through making the cable surface that receives clamping action and produce certain deformation and the undulation structure of protruding structure form certain meshing effect to increase clamping action, can effectively reduce the condition that breaks away from after making the cable drag because of exogenic action.
The lower part of the fixed terminal is provided with a bend, the bend is parallel to the protruding end, and the length of the bend is smaller than the protruding length of the protruding end.
The utility model discloses in, in order to increase the connection structure performance with the circuit board, can set up the one end of wearing out terminal block lower terminal surface of fixed terminal into having decurrent triangle-shaped pointed end structure.
Has the advantages that: due to the adoption of the technical scheme, the utility model discloses a make a body structure with fixed terminal and fixed terminal seat, strengthened the electrical connection structure's of product stability, the difficult not hard up after the cable inserts.
Drawings
Fig. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic diagram of an application scenario of FIG. 1;
FIG. 3 is a schematic view of a portion of the structure of FIG. 1;
FIG. 4 is a partial schematic view of the stationary terminal assembly of FIG. 1 shown connected to the front panel assembly;
fig. 5 is a schematic view of an integrated structure of the fixed terminal and the fixed terminal base according to the present invention;
fig. 6 is a first structural schematic view of the fixing terminal of the present invention;
fig. 7 is a second structural schematic view of the fixing terminal of the present invention;
fig. 8 is a schematic structural view of the movable terminal base of the present invention.
Detailed Description
In order to make the technical means, creation features, achievement purposes and functions of the present invention easy to understand, the present invention will be further explained with reference to the specific drawings. It is noted that the terms "first," "second," "third," "fourth," and the like (if any) in the description and in the claims of the present invention are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It will be appreciated that the data so used may be interchanged under appropriate circumstances such that the embodiments described herein may be practiced otherwise than as specifically illustrated or described herein. Furthermore, the terms "comprises" or "comprising," and any variations thereof, are intended to cover non-exclusive inclusions, such that a product or apparatus that comprises a list of elements or units is not necessarily limited to those elements or units expressly listed, but may include other elements or units not expressly listed or inherent to such product or apparatus.
Referring to fig. 1, 2, 3, 4, 5, an electrical connection structure for an electrical protection housing includes a front panel assembly and a fixed terminal assembly, wherein the front panel assembly includes a front panel 100, a movable terminal block 200, a movable terminal 400, a bolt 600; the front panel 100 is located on the front side of a fixed terminal assembly that connects to a circuit board 800 located in the interior cavity of the electrical protective enclosure. The fixed terminal assembly includes a fixed terminal holder 300 and a fixed terminal 500. The fixed terminal 500 is disposed in the fixed terminal base 300, the upper end thereof is immersed in the fixed terminal base 300, the lower end 502 thereof downwardly penetrates out of the lower end surface of the fixed terminal base 300, the fixed terminal base 300 is provided with a first electrical connection hole 301, and the fixed terminal 500 is provided with a protruding end 501. The upper end of the movable terminal 400 is disposed above the movable terminal base 200 through the bolt 600, the lower end is disposed in the second electrical connection hole 201 disposed on the movable terminal base 200, the protruding end of the fixed terminal 500 passes through the first electrical connection hole 301 and then is disposed below the lower end of the movable terminal in the second electrical connection hole 201, and the two form a clamping structure. Bolt 600 is screwed in and out on movable terminal base 200 to drive movable terminal 400 to go up and down, so that the clamping structure formed by the lower end of movable terminal 400 and the protruding end of fixed terminal 500 realizes clamping action and releasing action, in order to realize the effect, the upper end of movable terminal 400 can be provided with a bolt hole convenient for a bolt to pass through, and the diameter of the bolt hole is smaller than the nominal diameter of the external thread of bolt 600. In addition, the lower end of the movable terminal 400 may be disposed below the lower end of the bolt 600. The fixed terminal 500 is connected to the circuit board 800 through a lower end thereof. As shown in fig. 2, after the movable terminal 400 and the fixed terminal 500 form a clamping structure, the clamping distance is adjusted by the bolt 600 to clamp the external access cable 900, so as to form an electrical connection between the circuit board 800 and the external access cable 900;
the front panel 100 is provided with third electrical connection holes 101 and bolt holes 102. After a tool such as a screwdriver is inserted through the bolt hole 102, the bolt 600 on the movable terminal base 200 is adjusted, so that the movable terminal 400 is controlled to ascend and descend, and then the clamping and releasing of the clamping structure are realized. The external cable passes through the third electrical connection hole 101 and the second electrical connection hole 201 in sequence, then contacts the first electrical connection hole 301 and is clamped by the clamping structure.
It should be noted that the structure shown in fig. 4 is only to show the relative positional relationship of the fixed terminal assemblies, and when actually mounted, the bolt 600, the movable terminal 400, and the movable terminal base 200 shown in fig. 4 are all mounted on the front panel 100, and these three components are all part of the front panel assembly together with the front panel 100.
Referring to fig. 1, 3 and 5, the fixed terminal block 300 is provided with a boss 303 protruding forward, and when the front panel 100 is connected to another panel of the electrical protection enclosure in a fitting manner, the boss 303 restricts the position of the movable terminal block 200 so that it does not fall down.
In addition, fig. 3 shows the connection structure of the present invention and the circuit board 800, and the tip structure of the lower end 502 of the fixed terminal 500 can be observed to be inserted into the circuit board 800.
The utility model discloses in, the integrated injection moulding structure of fixed terminal and fixed terminal seat, the fixed terminal imbeds inside the fixed terminal seat, and, the lower terminal surface of fixed terminal seat is worn out to the lower extreme of fixed terminal, accessible injection moulding process realizes making during the manufacturing, place the fixed terminal of metal in the injection mold of fixed terminal seat earlier, form the integrated structure after moulding plastics again, when installing electrical protection shell, realize electrical connection after pegging graft with the corresponding hole site of the one end of wearing out the lower part of fixed terminal and circuit board, also can carry out the welding process of hookup location on this basis.
Be equipped with downward bellied positioning groove board 302 on fixed terminal seat 300, correspond positioning groove board 302 and be equipped with the constant head tank on circuit board 800, when electrical protection shell installs the assembly, when the one end of wearing out when fixed terminal 500's lower part was pegged graft with circuit board 800's connection hole site, positioning groove board 302 was pegged graft with the constant head tank, positioning groove board 302 not only was used for the location when installing, also was used for consolidating the joint strength and the connection structure's of integrated configuration's fixed terminal seat and circuit board stability. As can be seen from the structure shown in fig. 3, the lower positioning groove plate 302 of the fixed terminal holder 300 is inserted into the circuit board 800.
Referring to fig. 6 and 7, the left and/or right side surfaces of the fixed terminal are provided with saw-toothed structures 504. In some preferred embodiments, the serration structure may be provided on both left and right sides of the fixed terminal above and below the protruding end 501.
Referring to fig. 6 and 7, the fixed terminal may further include a fixed terminal hole 503 having a through hole structure. In some of the preferred embodiments, the fixed terminal holes 503 may be disposed above and below the raised ends 501.
Referring to fig. 6 and 7, in some embodiments, the outer surface of the protrusion 501 of the fixed terminal may be provided with a groove structure 5011. The groove structure is arranged on the outer surface of the protruding end of the fixed terminal, so that the cable is pressed more tightly. The fixed terminal hole 503 and the sawtooth structure 504 are arranged, so that the strength of the injection molding structure is improved, and the structure is firmer.
Referring to fig. 6, the lower portion of the fixed terminal may further include a bend, where the bend 505 is parallel to the protruding end 501, and the length of the bend 505 is smaller than the protruding length (protruding height) of the protruding end 501. The advantage of providing the bends is that the product can be formed into a triangular layout of the terminals during the integral injection molding process. When the triangular layout is not considered, the structure can be arranged according to fig. 7, and fig. 7 is a straight structure without a bend.
Referring to fig. 8, the top of the movable terminal base 200 is provided with a bolt hole 202 for allowing a bolt 600 to pass through, and the inner wall of the bolt hole 202 is provided with an internal thread matching the external thread of the outer wall of the bolt 600.
It should be noted that the utility model discloses can set up to a one-to-one structure of stiff terminal seat and expansion terminal seat, also can set up to a pair of multi-structure, a stiff terminal seat cooperates with one or more expansion terminal seat simultaneously promptly, at this moment, has the first electrical connection hole that equals with the quantity of expansion terminal seat on the integrated into one piece's the fixed terminal seat to the fixed terminal that the embedding corresponds expansion terminal seat quantity of moulding plastics, the quantity of boss also equals with the expansion terminal seat. At the moment, the movable terminal which is in a one-to-one corresponding structure with the movable terminal seat can be flexibly arranged into an independent structure, and any movable terminal is provided with a bolt in a matching way. In addition to the lateral extension realized in number, the connection structure may be extended in a vertical direction, for example, in the structure shown in fig. 2, an upper connection structure and a lower connection structure may be provided according to the structure of the front panel, and each connection structure includes a front panel, a fixed terminal block, a movable terminal, and a movable terminal block. Namely, the upper layer and the lower layer can be connected with wires and cables with different heights. More than two layers of connecting structures can be arranged according to actual requirements.
The basic principles and the main features of the invention and the advantages of the invention have been shown and described above. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (8)
1. An electrical connection structure adapted for an electrical protective enclosure, comprising a front panel assembly and a fixed terminal assembly, said front panel assembly being located on a front side of said fixed terminal assembly, said fixed terminal assembly being connected to a circuit board located in an interior cavity of said electrical protective enclosure, wherein said front panel assembly comprises a front panel, a movable terminal block, a movable terminal and a bolt;
the fixed terminal assembly comprises a fixed terminal and a fixed terminal seat;
the fixed terminal is arranged in the fixed terminal seat, the upper end of the fixed terminal is immersed in the fixed terminal seat, the lower end of the fixed terminal penetrates out of the lower end face of the fixed terminal seat, a first electrical connecting hole is formed in the fixed terminal seat, and a protruding end protruding forwards is formed in the fixed terminal;
the upper end of the movable terminal is arranged above the movable terminal seat through a bolt, the lower end of the movable terminal is positioned in a second electrical connecting hole arranged on the movable terminal seat, the protruding end of the fixed terminal penetrates through the first electrical connecting hole and then is positioned below the lower end of the movable terminal in the second electrical connecting hole, and the bolt is screwed in and out of the movable terminal seat to drive the movable terminal to lift;
the front end panel is provided with a bolt hole and a third electric connecting hole;
the fixed terminal seat is provided with a boss protruding forwards.
2. The electrical connection structure of claim 1, wherein the fixed terminal is embedded in the fixed terminal seat, and the fixed terminal seat are integrally formed by injection molding.
3. The electrical connection structure of claim 2, wherein the fixed terminal block is provided with a positioning groove plate protruding downward, the circuit board is provided with a positioning groove corresponding to the positioning groove plate, and the positioning groove plate is inserted into the positioning groove.
4. An electrical connection structure adapted for an electrical protection enclosure according to claim 2, wherein the left and/or right side of the fixed terminal is provided with a saw-toothed structure.
5. An electrical connection structure adapted for an electrical protection enclosure according to claim 4, wherein the fixed terminal is provided with a fixed terminal hole which is a through hole structure.
6. An electrical connection structure adapted for use in an electrical protective enclosure according to claim 2, wherein the outer surface of the male end of the fixed terminal is provided with a groove structure.
7. An electrical connection structure adapted for use in an electrical protective enclosure according to claim 2, wherein an outer surface of the raised end of the fixed terminal is provided with a raised structure.
8. The electrical connection structure for an electrical protection enclosure of any one of claims 1 to 7, wherein the lower portion of the fixed terminal is provided with a bend, the bend is parallel to the protruding end, and the length of the bend is smaller than the protruding length of the protruding end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020801450.1U CN211789601U (en) | 2020-05-14 | 2020-05-14 | Electrical connection structure suitable for electrical protection shell |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020801450.1U CN211789601U (en) | 2020-05-14 | 2020-05-14 | Electrical connection structure suitable for electrical protection shell |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211789601U true CN211789601U (en) | 2020-10-27 |
Family
ID=72957820
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020801450.1U Active CN211789601U (en) | 2020-05-14 | 2020-05-14 | Electrical connection structure suitable for electrical protection shell |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211789601U (en) |
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2020
- 2020-05-14 CN CN202020801450.1U patent/CN211789601U/en active Active
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