CN217182509U

CN217182509U - Flexible cable for frequency converter

Info

Publication number: CN217182509U
Application number: CN202220634464.8U
Authority: CN
Inventors: 褚腾建
Original assignee: Kunming Motian Cable Co Ltd
Current assignee: Kunming Motian Cable Co Ltd
Priority date: 2022-03-22
Filing date: 2022-03-22
Publication date: 2022-08-12
Anticipated expiration: 2032-03-22

Abstract

The utility model discloses a flexible cable for converter, including cable body (1) and setting up in joint (2) of cable body (1) one end, be provided with conductor terminal (4) and the clamping part who is connected with conductor terminal (4) inside joint (2), cable core (10) of cable body (1) pass behind the clamping part with conductor terminal (4) are connected; the clamping component comprises a conical head (11), and a conical pressing block (12) and three steel balls (3) which are arranged in the conical head (11). The utility model discloses a set up three steel ball in the conical head, the cable core of cable body passes between the three steel ball, and is pressed from both sides tightly by three steel ball, receives when pulling when the cable body the steel ball and rotates towards cable core direction one side, pulls the cable core more, and the steel ball then gets tighter with the cable core centre gripping, prevents that the cable from taking off with the joint pine.

Description

Flexible cable for frequency converter

Technical Field

The utility model relates to the technical field of cables, specifically indicate a flexible cable for converter.

Background

Through articulate between the binding post of cable and converter, if be connected insecure between cable and the joint, then break away from with the joint easily when the cable receives to pull, influence the normal work of converter. In order to solve the problem, the application provides a flexible cable for converter, firm in connection between its cable body and the joint is difficult for the pine to take off.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to solve the above problem, provide a flexible cable for converter, firm in connection between its cable body and the joint is difficult for the pine to take off.

The purpose of the utility model is realized through the following technical scheme: a flexible cable for a frequency converter comprises a cable body and a connector arranged at one end of the cable body, wherein a conductor terminal and a clamping component connected with the conductor terminal are arranged in the connector, and a cable core of the cable body penetrates through the clamping component and then is connected with the conductor terminal.

The clamping component comprises a conical head, a conical pressing block and three steel balls, wherein the conical pressing block and the three steel balls are arranged in the conical head; the wide-face end of the conical head is connected with the conductor terminal, three steel balls are positioned on the same plane and close to one side of the narrow-face end of the conical head, and the cable core penetrates through the conical pressing block after penetrating through the three steel balls; the conductor terminal compresses the conical pressing block, and the conical pressing block compresses three steel balls, so that the three steel balls clamp the cable core tightly.

The connector is internally provided with a mounting hole and a connecting hole which are communicated with each other, and the diameter of the mounting hole is larger than that of the connecting hole; the conductor terminal comprises a contact end plate and an inserting part connected with the contact end plate, the contact end plate is abutted against the bottom of the mounting hole, the inserting part extends into the connecting hole and then is connected with the conical head, and the cable core penetrates through the conical pressing block and then is connected with the inserting part.

The wide surface end of the conical head is provided with a connecting part, and the connecting part is in threaded connection with the insertion part.

The inserting part is provided with an inserting port, and the cable core is inserted into the inserting port.

The bottom of mounting hole is provided with the connecting plate, the contact end plate passes through the connecting screw to be installed on the connecting plate.

The shell of the joint comprises an insulating layer and a shielding layer arranged on the outer side of the insulating layer.

The shielding layer is a semi-conductive silicon rubber shielding layer.

An end cover is arranged on the joint.

Compared with the prior art, the method has the following beneficial effects:

(1) the utility model discloses a set up three steel ball in the conical head, the cable core of cable body passes between the three steel ball, and is pressed from both sides tightly by three steel ball, receives when pulling when the cable body the steel ball and rotates towards cable core direction one side, pulls the cable core more, and the steel ball then gets tighter with the cable core centre gripping, prevents that the cable from taking off with the joint pine.

(2) The utility model discloses a cable core is connected with the mode of pegging graft with the conductor terminal for the cable core is inseparabler with the conductor contact.

(3) The joint of the utility model is provided with the insulating layer and the shielding layer, the insulating layer enables the joint to have good heat resistance, cold resistance and aging resistance, and the service life of the cable is prolonged; the shielding layer can inhibit the electromagnetic wave from emitting outwards and can be used as a short-circuit current channel, so that the long-term safe operation of the cable is ensured.

Additional features of the present application will be set forth in part in the description which follows. Additional features of some aspects of the present application will be apparent to those of ordinary skill in the art in view of the following description and accompanying drawings, or in view of the production or operation of the embodiments. The features disclosed in this application may be realized and attained by practice or use of various methods, instrumentalities and combinations of the specific embodiments described below.

Drawings

The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the application and together with the description serve to explain the application and not to limit the application. Like reference symbols in the various drawings indicate like elements. Wherein the content of the first and second substances,

fig. 1 is a structural diagram of the present invention.

Fig. 2 is a sectional view of the connector and the cable body of the present invention when they are connected.

Fig. 3 is an enlarged schematic view of a point a in fig. 2.

Fig. 4 is a sectional view of the housing of the middle joint of the present invention.

Fig. 5 is a sectional view of the conductor terminal of the present invention.

Fig. 6 is a sectional view of the cone head of the present invention.

The reference numbers in the above figures refer to: 1-cable body, 2-joint, 3-steel ball, 4-conductor terminal, 5-connecting plate, 7-insulating layer, 8-shielding layer, 9-end cover, 10-cable core, 11-conical head, 12-conical pressing block, 13-connecting screw, 14-mounting hole, 15-plug interface, 16-plug part, 17-contact end plate, 18-connecting part, 19-connecting hole.

Detailed Description

In order to make the technical solutions better understood by those skilled in the art, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only partial embodiments of the present application, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

It should be noted that if the terms "first", "second", etc. are used in the description and claims of this application and in the above-described drawings, they are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It should be understood that the data so used may be interchanged under appropriate circumstances such that embodiments of the application described herein may be used. Furthermore, if the terms "comprise" and "have" and any variations thereof are referred to, it is intended to cover non-exclusive inclusions, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

In this application, if the terms "upper", "lower", "left", "right", "front", "rear", "top", "bottom", "inner", "outer", "center", "vertical", "horizontal", "lateral", "longitudinal", etc. are referred to, their indicated orientations or positional relationships are based on the orientations or positional relationships shown in the drawings. These terms are used primarily to better describe the present application and its embodiments, and are not used to limit the indicated devices, elements or components to a particular orientation or to be constructed and operated in a particular orientation.

Moreover, some of the above terms may be used to indicate other meanings besides the orientation or positional relationship, for example, the term "on" may also be used to indicate some kind of attachment or connection relationship in some cases. The specific meaning of these terms in this application will be understood by those of ordinary skill in the art as appropriate.

Furthermore, in this application, the terms "mounted," "disposed," "provided," "connected," "sleeved," and the like should be construed broadly if they are referred to. For example, it may be a fixed connection, a removable connection, or a unitary construction; can be a mechanical connection, or an electrical connection; may be directly connected, or indirectly connected through intervening media, or may be in internal communication between two devices, elements or components. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.

It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present application will be described in detail below with reference to the embodiments with reference to the attached drawings.

Examples

As shown in fig. 1, the present embodiment discloses a flexible cable for a frequency converter, which includes a cable body 1 and a connector 2 disposed at one end of the cable body 1.

Specifically, as shown in fig. 2 to 3, the housing of the connector 2 includes an insulating layer 7 and a shielding layer 8, the shielding layer 8 covers the outside of the insulating layer 7, and the shielding layer 8 is a semiconductive silicon rubber shielding layer. The insulating layer 7 enables the joint 2 to have good heat resistance, cold resistance and aging resistance, and the service life of the cable is prolonged. The shielding layer 8 can inhibit the electromagnetic wave from emitting outwards, and can also be used as a short-circuit current channel, so that the long-term safe and stable operation of the cable is ensured.

As shown in fig. 4, the fitting 2 is internally provided with a mounting hole 14 and a connection hole 19, the mounting hole 14 and the connection hole 19 communicate with each other, and the diameter of the mounting hole 14 is larger than that of the connection hole 19.

As shown in fig. 2 and 5, the connector 2 is provided with a conductor terminal 4 inside, the conductor terminal 4 includes a contact end plate 17 and a plug part 16 connected to the contact end plate 17, the diameter of the contact end plate 17 matches the diameter of the mounting hole 14, and the diameter of the plug part 16 matches the diameter of the connection hole 19. When the connector is installed, the contact end plate 17 abuts against the bottom of the installation hole 14, and the insertion part 16 extends into the connection hole 19.

In order to fix the conductor terminal 4, the bottom of the mounting hole 14 is provided with a connecting plate 5, and the contact end plate 17 is mounted on the connecting plate 5 by a connecting screw 13, thereby mounting the conductor terminal 4 inside the contact 2.

The insertion part 16 is connected to a clamping member for clamping the core 10 of the cable body 1, and the clamping member is positioned in the connection hole 19. The inserting part 16 is provided with an inserting port 15, and during installation, the cable core 10 of the cable body 1 penetrates through the clamping part and then is inserted into the inserting port 15, so that the cable core 10 and the conductor terminal 4 are connected more tightly.

Specifically, as shown in fig. 2 and 3, the clamping member includes a conical head 11, a conical pressing block 12 and three steel balls 3. The conical pressing block 12 and the three steel balls 3 are located inside the conical head 11, and the three steel balls 3 are located on the same plane and close to one side of the narrow face end of the conical head 11. During installation, the cable core 10 extends into the connecting hole 19 and extends into the narrow-face end of the conical head 11, then passes through the three steel balls 3, then passes through the conical pressing block 12, and finally is inserted into the socket 15. As shown in fig. 6, a connection part 18 is connected to the wide end of the conical head 11, the connection part 18 is in a straight state, a screw thread is provided on the inner wall of the connection part 18, a screw thread is also provided on the insertion part 16, and the connection part 18 is in threaded connection with the insertion part 16.

The conical pressing block 12 and the three steel balls 3 can move inside the conical head 11, when the conical head 11 is screwed on the inserting part 16, the end part of the inserting part 16 pushes the conical pressing block 12, the conical pressing block 12 pushes the three steel balls 3, and under the dual action of the conical pressing block 12 and the inner wall of the conical head 11, the three steel balls 3 clamp the cable core 10 tightly.

In order to protect the conductor terminal 4, the terminal is provided with an end cap 9 in this embodiment, and the end cap 9 can cover the mounting hole 14.

During installation, the cable body 1 penetrates through the shell of the connector 2, namely the end part of the cable body 1 sequentially penetrates through the connecting hole 19 and the mounting hole 14, then the cable core 10 of the cable body 1 extends into the conical head 11, sequentially penetrates through the three steel balls 3 and the conical pressing block 12 and then is inserted into the plug-in port 15, and then the conical head 11 is connected with the plug-in part 16, so that the three steel balls 3 tightly clamp the cable core 10. The conductor terminal 4 is mounted in the connector 2 by the connecting screw 13, and the end cap 9 is covered to complete the connection between the cable body 1 and the connector 2. When the cable is connected with the frequency converter, the end cover 9 is taken down, the terminal of the frequency converter is inserted into the mounting hole 14, the terminal of the frequency converter is contacted with the contact end plate 17, and the terminal of the frequency converter is conducted with the cable core 10, so that the connection with the frequency converter can be completed. In addition, the locking rings can be arranged at the two ends of the joint 2, and after the joint 2 is connected with the terminal of the frequency converter and the cable core 10, the locking rings are locked, so that the connection of the three parts is firmer.

When the cable body 1 is dragged, the cable core 10 is pulled outwards, the cable core 10 drives the three steel balls 3, the three steel balls 3 have the trend of rotating towards one side of the cable core 10, and the three steel balls 3 provide larger clamping force for the cable core 10, so that the cable core 10 is clamped more tightly, and the cable core 10 is prevented from loosening. When the cable body 1 needs to be loosened, the connecting screw 13 is loosened, the cable body 1 is pushed forwards to enable the conductor terminal 4 to extend out of the mounting hole 14, the conductor terminal 4 is taken down, the extrusion of the conductor terminal 4 is avoided, the conical pressing block 12 loosens the three steel balls 3, the three steel balls 3 loosen the cable core 10, and at the moment, the cable core 10 can be pulled out.

It should be noted that all of the features disclosed in this specification, or all of the steps in any method or process so disclosed, may be combined in any combination, except for mutually exclusive features and/or steps.

In addition, the above embodiments are exemplary, and those skilled in the art can devise various solutions in light of the disclosure, which are also within the scope of the disclosure and the protection scope of the present invention. It should be understood by those skilled in the art that the present specification and drawings are illustrative only and are not limiting upon the claims. The scope of the invention is defined by the claims and their equivalents.

Claims

1. The utility model provides a flexible cable for converter, includes cable body (1) and sets up joint (2) of cable body (1) one end, its characterized in that: a conductor terminal (4) and a clamping component connected with the conductor terminal (4) are arranged in the joint (2), and a cable core (10) of the cable body (1) penetrates through the clamping component and then is connected with the conductor terminal (4);

the clamping component comprises a conical head (11), and a conical pressing block (12) and three steel balls (3) which are arranged in the conical head (11); the wide-face end of the conical head (11) is connected with the conductor terminal (4), three steel balls (3) are positioned on the same plane and close to one side of the narrow-face end of the conical head (11), and the cable core (10) penetrates through the conical pressing block (12) after penetrating through the three steel balls (3); the conductor terminal (4) compresses the conical pressing block (12), the conical pressing block (12) compresses three steel balls (3), and the three steel balls (3) clamp the cable core (10).

2. The flexible cable for a frequency converter according to claim 1, wherein: the connector (2) is internally provided with a mounting hole (14) and a connecting hole (19) which are communicated with each other, and the diameter of the mounting hole (14) is larger than that of the connecting hole (19); the conductor terminal (4) comprises a contact end plate (17) and an inserting part (16) connected with the contact end plate (17), the contact end plate (17) abuts against the bottom of the mounting hole (14), the inserting part (16) extends into the connecting hole (19) and then is connected with the conical head (11), and the cable core (10) penetrates through the conical pressing block (12) and then is connected with the inserting part (16).

3. The flexible cable for a frequency converter according to claim 2, wherein: the wide surface end of the conical head (11) is provided with a connecting part (18), and the connecting part (18) is in threaded connection with the inserting part (16).

4. The flexible cable for a frequency converter according to claim 2 or 3, characterized in that: the plug-in part (16) is provided with a plug-in port (15), and the cable core (10) is inserted into the plug-in port (15).

5. The flexible cable for a frequency converter according to claim 2 or 3, wherein: the bottom of mounting hole (14) is provided with connecting plate (5), contact end plate (17) are installed through connecting screw (13) on connecting plate (5).

6. The flexible cable for a frequency converter according to claim 1, wherein: the shell of the connector (2) comprises an insulating layer (7) and a shielding layer (8) arranged on the outer side of the insulating layer (7).

7. The flexible cable for a frequency converter according to claim 6, wherein: the shielding layer (8) is a semiconductive silicon rubber shielding layer.

8. The flexible cable for a frequency converter according to claim 1, wherein: an end cover (9) is arranged on the joint (2).