CN215720031U

CN215720031U - Plastic connection external member and frequency converter cabinet

Info

Publication number: CN215720031U
Application number: CN202121385484.8U
Authority: CN
Inventors: 曾乔玉
Original assignee: Siemens Electrical Drives Ltd
Current assignee: Siemens Electrical Drives Ltd
Priority date: 2021-06-22
Filing date: 2021-06-22
Publication date: 2022-02-01
Anticipated expiration: 2031-06-22

Abstract

The utility model provides a plastic connecting kit which is characterized by comprising a plastic piece, a connecting piece and a fastening piece, wherein the plastic piece is used for being connected with an external component; the connecting piece cylindrical structure is inserted into the connecting piece mounting hole of the plastic piece and is provided with a transverse connecting piece through hole, a metal thread structure is arranged inside the connecting piece through hole, and the fastening piece mounting hole is communicated with the connecting piece through hole; the fastener is detachably threaded through the outer member, the fastener mounting hole and the connector through hole to connect the plastic member and the outer member. Through this plastic connection external member, reduced the stress of direct action working in the working of plastics, can prevent effectively that the working of plastics from splitting, and the commonality is strong, do not occupy unnecessary space, make things convenient for old and new replacement.

Description

Plastic connection external member and frequency converter cabinet

Technical Field

The utility model relates to the field of frequency converter cabinet parts, in particular to a plastic connecting kit and a frequency converter cabinet comprising the same.

Background

When the plastic part needs to be fastened along the laminating direction, the plastic part is possibly torn when the fastening torque is too large by the original mode of connecting the plastic part by the screw after punching and tapping; when the tightening torque is too small, the tightening cannot be completed.

Disclosure of Invention

In view of the above, the present invention provides a plastic connecting kit to solve the above problems.

A plastic connection kit according to the object of the utility model, characterized in that it comprises:

the plastic part is used for being connected with an external part, a connecting end face of the plastic part, which is connected with the external part, is provided with a fastener mounting hole extending towards the interior of the plastic part, and a connecting piece mounting hole is formed in the direction of the plastic part, which is perpendicular to the extending direction of the fastener mounting hole;

the connecting piece is inserted into the connecting piece mounting hole of the plastic piece, the connecting piece is of a cylindrical structure and is provided with a transverse connecting piece through hole, a metal thread structure is arranged inside the connecting piece through hole, and the fastener mounting hole is communicated with the connecting piece through hole;

a fastener removably threaded through the outer component, the fastener mounting hole and the connector through-hole to connect the plastic component and the outer component.

Furthermore, the fastener mounting hole is 2 that set up from top to bottom, the connecting piece through-hole is corresponding to be provided with 2 from top to bottom.

Furthermore, two ends of the fastener mounting hole are respectively located on two sides of the connecting piece mounting hole.

Furthermore, a direction marking groove is formed in the top of the connecting piece, and the extending direction of the direction marking groove is parallel to or perpendicular to the extending direction of the connecting piece through hole.

The utility model also provides a frequency converter cabinet, wherein the plastic connecting piece suite is arranged in the frequency converter cabinet.

Furthermore, the plastic part in the frequency converter cabinet is connected with the longitudinal beam of the frequency converter cabinet through the fastening piece.

Furthermore, one or more supporting grooves are arranged on the plastic part in the frequency converter cabinet to support the wiring bar arranged in the frequency converter cabinet.

According to the plastic connecting kit, the unthreaded hole is formed in the plastic part and the adaptor with the metal threaded hole is inserted into the unthreaded hole, the external part and the plastic part are connected by screwing the fastener into the metal threaded hole of the connector, so that the stress directly acting on the plastic part is reduced, and the plastic part can be effectively prevented from cracking. The structure has strong universality, does not occupy redundant space, and is convenient for new and old replacement.

Drawings

The foregoing and other features and advantages of the utility model will become more apparent to those skilled in the art to which the utility model relates upon consideration of the following detailed description of a preferred embodiment of the utility model with reference to the accompanying drawings, in which:

FIG. 1 is a block diagram of a plastic component and a connector of a plastic connection kit according to one embodiment of the utility model;

FIG. 2 is a schematic view of a plastic connection kit according to one embodiment of the present invention connected to an external component;

wherein the reference numbers are as follows:

1 plastic part, 2 connecting end faces, 3 fastener mounting holes, 4 connecting piece mounting holes and 6 supporting grooves

10 connector, 12 connector through hole, 20 fastener, 100 external part

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail by the following examples.

the plastic connection kit shown in fig. 1 and 2 comprises a plastic piece 1, a connecting piece 10 and a fastening piece 20, wherein the plastic piece 1 is used for being connected with an external component, a connecting end surface 2 of the plastic piece 1 connected with the external component is provided with a fastening piece mounting hole 3 extending towards the interior of the plastic piece 1, and a connecting piece mounting hole 4 is formed in the plastic piece 1 in a direction perpendicular to the extending direction of the fastening piece mounting hole 3; the connecting piece 10 is inserted into the connecting piece mounting hole 4 of the plastic piece 1, the connecting piece 10 is of a cylindrical structure and is provided with a transverse connecting piece through hole 12, a metal thread structure is arranged inside the connecting piece through hole 12, and the fastener mounting hole 3 is communicated with the connecting piece through hole 12; the fastener 20 is detachably threaded through the external member, the fastener mounting hole 3 and the connector through hole 12 to connect the plastic member 1 and the external member.

Specifically, working of plastics 1 and external component contact and be connected on the connection terminal surface 2 that extends along the Y axle direction, set up on the connection terminal surface 2 of working of plastics 1 along the fastener mounting hole 3 of the inside extension of X axle direction to working of plastics 1, be provided with connecting piece mounting hole 4 along the Y axle direction in the working of plastics 1 for insert and establish connecting piece 10. It should be noted that, according to the plastic part 1 of the present embodiment, the thickness in the Z-axis direction is relatively narrow, and the thickness in the Y-axis direction is relatively thick, so the connector mounting hole 4 is provided in the Y-axis direction; while in other embodiments the plastic part 1 is thicker in the Z-axis direction and narrower in the Y-axis direction, the connector mounting hole 4 may be provided in the Z-axis direction.

The connecting piece 10 is inserted into the connecting piece mounting hole 4 of the plastic piece 1, the number and the position of the connecting piece through holes 12 transversely arranged on the connecting piece 10 are arranged corresponding to the fastener mounting holes 3 arranged on the plastic piece 1, and the connecting piece through holes 12 are internally of a metal thread structure so as to meet the stress of tightening the fasteners.

The fastener 20, such as a screw having a threaded end, is preferably long enough to pass through the connector through hole 12 to the end of the fastener receiving hole 3 remote from the external member, thereby more securely holding the connector 10. Of course, the length thereof may not pass through the connector through-hole 12 but only reach the inside of the connector through-hole 12 as long as the tightening of the screw thread and the internal thread of the connector through-hole 12 is achieved.

According to the plastic part 1 connecting kit of the structure, the adaptor with the metal threaded hole is inserted into the inner part of the plastic part 1, the metal threaded hole in the adaptor is connected with an external part through a screw, the stress directly acting on the plastic part 1 is reduced, and the plastic part 1 can be effectively prevented from cracking.

Further, the fastener mounting hole 3 is 2 holes arranged up and down, and correspondingly, the connecting piece through hole 12 is also correspondingly arranged up and down 2 holes. When the plastic part 1 and an external part are fastened, screws are screwed into the 2 groups of fastener mounting holes 3 and the connecting piece through holes 12 respectively, and the threads at the lower ends of the screws are screwed with the metal threads in the connecting piece through holes 12, so that fastening can be realized. The upper and lower two groups of holes are arranged, so that the fixation is firmer and the stress is more balanced. It should be noted that, when the thickness of the plastic part 1 along the Z-axis direction is thicker and the thickness along the Y-axis direction is narrower, the connector mounting holes 4 are arranged along the Z-axis direction, and at this time, the connector through holes 12 and the fastener mounting holes 3 are arranged along the Z-axis direction. Further, the number of holes may be set as desired, and is not limited to 2 groups.

Further, both ends of the fastener mounting hole 3 are respectively located at both sides of the connector mounting hole 4. That is, the fastening member 20 passes through the coupling member through-hole 12 to the other end of the coupling member 10, so that the fastening of the coupling member is more secure.

Further, the top of the connecting member 10 is provided with a direction indicating groove, and the extending direction of the direction indicating groove is parallel to or perpendicular to the extending direction of the connecting member through hole 12. Thus, it is easy to align the connector through-hole 12 with the fastener mounting hole 3 when placing the connector.

According to another aspect of the utility model, there is also provided a frequency converter cabinet comprising the plastic connector kit described above.

Further, be provided with the longeron on the converter cabinet, working of plastics 1 is connected with the longeron through fastener 20. In practice, a person skilled in the art will provide a plurality of mounting holes on the longitudinal beam, align the mounting holes with the fastener mounting holes 3 on the plastic part 1, and then pass the fasteners through the holes for fixing.

Furthermore, be provided with the wiring row in the converter cabinet, be provided with one or more support groove 6 on the working of plastics 1 and be used for supporting the wiring row. Wherein a plurality of terminal blocks can be supported in one support slot 6.

The plastic connecting kit according to the utility model has the following advantages:

1. adopt the hole to be metal thread's connecting piece for when fastening the working of plastics, not with the working of plastics direct contact, avoid the working of plastics to tear completely.

2. When the connecting piece with the inner hole being the metal thread is adopted for fastening, the moment is easy to control.

3. The connecting piece has universality and can be applied to a plurality of occasions.

4. The connecting piece does not occupy extra space and is convenient for new and old design replacement.

5. The direction indicating groove is arranged, so that the operation of workers is facilitated.

6. Be applied to in the converter cabinet, guarantee that the use of converter cabinet does not receive the influence that the working of plastics splits.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the utility model, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.

Claims

1. A plastic connection kit, comprising:

the plastic part (1) is used for being connected with an external component (100), a connecting end face (2) of the plastic part (1) connected with the external component (100) is provided with a fastener mounting hole (3) extending towards the interior of the plastic part (1), and a connecting piece mounting hole (4) is formed in the direction, perpendicular to the extending direction of the fastener mounting hole (3), of the plastic part (1);

the connecting piece (10) is inserted into the connecting piece mounting hole (4) of the plastic piece (1), the connecting piece (10) is of a cylindrical structure and is provided with a transverse connecting piece through hole (12), the inside of the connecting piece through hole (12) is of a metal thread structure, and the fastener mounting hole (3) is communicated with the connecting piece through hole (12);

a fastener (20), the fastener (20) being detachably threaded through the outer member (100), the fastener mounting hole (3) and the connector through hole 12(12) to connect the plastic member (1) and the outer member (100).

2. A plastic connection kit according to claim 1, wherein the fastener mounting holes (3) are arranged in 2 up and down, and the connector through holes (12) are arranged in 2 up and down correspondingly.

3. A plastic connection kit according to claim 1, characterized in that the fastener mounting hole (3) is located at both ends of the connector mounting hole (4).

4. The plastic connecting kit as claimed in claim 1, wherein the connecting member (10) has a direction indicating groove (14) formed at the top thereof, and the direction indicating groove (14) extends in a direction parallel or perpendicular to the direction of the connecting member through hole (12).

5. Frequency converter cabinet, characterized in that a plastic connector kit according to any one of claims 1-4 is arranged in the frequency converter cabinet.

6. Frequency converter cabinet according to claim 5, characterized in that the plastic part (1) is connected to the longitudinal beams of the frequency converter cabinet by means of the fastening elements (20).

7. Frequency converter cabinet according to claim 5, characterized in that one or more support slots (6) are provided in the plastic part (1) for supporting terminal blocks provided in the frequency converter cabinet.