Silicone rubber motor lead wire

Abstract

The utility model belongs to the technical field of motor lead wires, and particularly relates to a silicone rubber motor lead wire, which comprises a cable, an inner supporting strip is arranged in the center of the interior of the cable, a plurality of cable cores are distributed on the outer circumference of the cable, the cable cores are mutually contacted and electrically conducted, a filling layer for forming the cable cores on the inner supporting strip is arranged outside the cable cores, and the filling layer is arranged outside the cable cores. A wrapping layer is formed outside the filling layer, a connector is arranged at one end of the cable, a conductive block is fixedly arranged in the connector, a pressing sleeve is slidably connected in the connector, and the cable and the connector are connected in an inserted mode. Firstly, the cable core in the cable has a larger contact surface connected with the outside, so that an open circuit phenomenon can be better avoided, secondly, the cable core can be stably clamped through the conical metal sleeve, and the cable can be stably clamped through the conical pressing block, so that the connection reliability of the cable and the joint is ensured; and then the stability of electric connection with the motor and structural connection is ensured under the action of the connecting sleeve and the conductive block.

Description

Technical Field

[0001] The utility model belongs to the technical field of motor lead wires, in particular to a silicone rubber motor lead wire. Background Art

[0002] Silicone rubber motor lead wire is a widely used electrical connector, mainly used for the connection between the motor and the power supply to transmit high voltage current and ensure the normal operation of the motor; Silicone rubber motor lead wire uses high-quality silicone rubber as the insulating material, which has the characteristics of high voltage resistance, wear resistance, and good insulation performance. Its insulation layer has uniform thickness and can effectively isolate high voltage current to ensure the safety and stability of the circuit. In addition, the silicone rubber material also has excellent anti-aging properties, and can maintain good insulation performance and mechanical strength under harsh climate and environmental conditions to ensure the reliable operation of the circuit;

[0003] The existing motor wiring is generally connected through a copper nose and then locked by a nut. The connection method of the lead wire through the copper nose is not stable. When subjected to external tension, the copper nose and the lead wire are easily separated;

[0004] In order to solve the above problems, the present application proposes a silicone rubber motor lead wire. Utility Model Content

[0005] The purpose of the utility model is to provide a silicone rubber motor lead wire, which solves the problems raised in the above background technology.

[0006] In order to solve the above technical problems, the utility model is realized by the following technical solutions:

[0007] The utility model discloses a silicone rubber motor lead wire, comprising a cable, wherein an inner support bar is arranged at the inner center of the cable, a plurality of cable cores are distributed on the outer circumference of the cable, and the cable cores are in contact with each other and electrically conductive, a filling layer is arranged on the outer side of the cable core, which is formed on the inner support bar, and a coating layer is formed on the outer side of the filling layer, a joint is arranged at one end of the cable, a conductive block is fixedly arranged inside the joint, a pressing sleeve is slidably connected inside the joint, the cable and the joint are plugged into each other, and the cable is locked in the joint by sliding the pressing sleeve, the cable core is electrically conductive with the conductive block, a rotating connecting sleeve is arranged below the conductive block, and the connecting sleeve is also electrically conductive with the conductive block, and a threaded cover is connected at one end of the joint, which drives the pressing sleeve to slide and locks the cable in the joint.

[0008] Furthermore, a conical metal sleeve is fixed to the front end of the pressing sleeve, a conical pressing block is elastically connected to the middle of the conical metal sleeve, and a return spring is also arranged between the pressing sleeve and the inside of the joint.

[0009] Furthermore, a conical guide groove is formed inside the joint to be pressed and matched with the conical pressing block. The conical pressing block is multiple and distributed circumferentially. The conical pressing block presses the cable radially inward by pressing with the conical guide groove.

[0010] Furthermore, a connection seat is provided at the upper end of the conductive block, and a dividing cone is also provided on the connection seat for evenly dispersing the cable core. The cable core is pressed between the connection seat, the dividing cone and the conical metal sleeve by sliding of the pressing sleeve.

[0011] Furthermore, a compression sleeve is arranged on the inner side of the threaded cover, the compression sleeve is in compression contact with the outer end surface of the compression sleeve, and a threaded seat cooperating with the compression sleeve is arranged at the end of the joint.

[0012] Furthermore, the press sleeve and the threaded cover are both formed with through holes for the cable to pass through, and the press sleeve, the threaded cover and the cable are coaxial.

[0013] Furthermore, the connecting sleeve is rotated at the bottom of the conductive block and the upper end is fitted with the joint, and a thread groove is provided inside the connecting sleeve which can directly cooperate with the screw on the motor terminal socket.

[0014] The utility model has the following beneficial effects:

[0015] The utility model has a larger contact area by distributing the cable cores in the cable along the large diameter circumference, which can better ensure the connection effect and conductivity and avoid poor contact;

[0016] The utility model can ensure the reliability of the connection between the cable and the joint by squeezing the cable core through the conical metal sleeve and the conical pressing block, and the double squeezing is completed synchronously through the threaded cover, which is easier to operate, and then the joint is connected to the motor terminal block through the connecting sleeve, which has better tensile resistance and stability.

[0017] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for describing the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0019] Figure 1 This is a schematic diagram of the overall appearance structure of the utility model;

[0020] Figure 2 for Figure 1 Schematic diagram of the structure from a bird's-eye view;

[0021] Figure 3 for Figure 1 Schematic diagram of the structure in half section from the main view;

[0022] Figure 4 This is a schematic diagram of the structure of the utility model in a half-section view when it is not connected;

[0023] Figure 5 It is a schematic diagram of the structure of the enlarged medium-pressure sleeve of the utility model;

[0024] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0025] In the figure: 1. cable; 11. inner support bar; 12. cable core; 13. filling layer; 14. coating layer; 2. joint; 21. conical guide groove; 22. threaded seat; 3. conductive block; 31. connecting seat; 32. branching cone; 4. pressing sleeve; 41. conical metal sleeve; 42. conical pressing block; 43. reset spring; 5. threaded cover; 51. tightening sleeve; 6. connecting sleeve. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0027] In the description of the present invention, it should be understood that terms such as "opening", "upper", "lower", "thickness", "top", "middle", "length", "inside", "all around" and the like indicating orientation or positional relationship are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the components or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0028] See also Figure 1-5As shown, the utility model is a silicone rubber motor lead wire, including a cable 1, an inner support bar 11 is arranged at the inner center of the cable 1, a plurality of cable cores 12 are distributed on the outer circumference of the cable 1, and the cable cores 12 are in contact with each other and electrically conductive, a filling layer 13 is arranged on the outer side of the cable core 12 to form it on the inner support bar 11, and a coating layer 14 is formed on the outer side of the filling layer 13, a connector 2 is arranged at one end of the cable 1, a conductive block 3 is fixedly arranged inside the connector 2, a pressing sleeve 4 is slidably connected inside the connector 2, the cable 1 and the connector 2 are plugged into each other, the cable 1 is locked in the connector 2 by sliding the pressing sleeve 4, the cable core 12 is electrically conductive with the conductive block 3, a rotating connecting sleeve 6 is arranged below the conductive block 3, the connecting sleeve 6 is also electrically conductive with the conductive block 3, and a threaded cover 5 is connected at one end of the connector 2 to drive the pressing sleeve 4 to slide and lock the cable 1 in the connector 2.

[0029] Among them, a conical metal sleeve 41 is fixed at the front end of the pressing sleeve 4, a conical pressing block 42 is elastically connected to the middle of the conical metal sleeve 41, and a reset spring 43 is also arranged between the pressing sleeve 4 and the inside of the joint 2. In this embodiment, the pressing sleeve 4 is in a reset state under the action of the reset spring 43. At this time, the cable 1 can easily pass through the pressing sleeve 4, which is convenient for docking and disconnection steps.

[0030] Among them, a conical guide groove 21 is formed inside the connector 2 to be squeezed and matched with the conical pressure block 42. There are multiple conical pressure blocks 42 and they are distributed circumferentially. The conical pressure block 42 presses the cable 1 from radially inward by squeezing with the conical guide groove 21. In this embodiment, double locking is used to more reliably ensure the connection between the cable 1 and the connector 2. At the same time, the cooperation between the conical metal sleeve 41, the branching cone 32 and the connecting seat 31 can also ensure the stability of electrical conduction, thereby ensuring the stable use of the motor.

[0031] Among them, a connecting seat 31 is provided at the upper end of the conductive block 3, and a dividing cone 32 for evenly dispersing the cable core 12 is also provided on the connecting seat 31. The cable core 12 is pressed between the connecting seat 31, the dividing cone 32 and the conical metal sleeve 41 through the sliding of the pressing sleeve 4. In this embodiment, the dividing cone 32 guides the cable core 12 and then deforms the cable core 12 under the extrusion of the conical metal sleeve 41 and then presses it, which has greater friction and improves the tensile resistance. The connecting seat 31, the dividing cone 32 and the conical metal sleeve 41 can extrude and cooperate with the cable core 12, and can also reliably ensure the circuit conduction.

[0032] Among them, a compression sleeve 51 is arranged on the inner side of the threaded cover 5, and the compression sleeve 51 is in compression contact with the outer end surface of the compression sleeve 4. A threaded seat 22 cooperating with the compression sleeve 51 is arranged at the end of the connector 2. In this embodiment, the compression sleeve 51 pushes the compression sleeve 4 inward through the spiral of the threaded cover 5 and the threaded seat 22, thereby prompting the compression sleeve 4 to lock the cable 1 in the connector 2 to achieve a reliable connection.

[0033] Among them, the inside of the pressing sleeve 4 and the threaded cover 5 are formed with through holes for the cable 1 to pass through. The pressing sleeve 4, the threaded cover 5 and the cable 1 are coaxial. The through holes set in the pressing sleeve 4 and the threaded cover 5 in this embodiment ensure a close fit with the cable 1 and ensure the connection reliability.

[0034] Among them, the connecting sleeve 6 rotates at the bottom of the conductive block 3 and the upper end is in contact with the joint 2. A threaded groove is provided inside the connecting sleeve 6 which can directly cooperate with the screws on the motor terminal socket. In this embodiment, the connecting sleeve 6 can directly cooperate with the screws on the motor terminal socket and has better adaptability.

[0035] It can be understood that, firstly, the cable core 12 in the cable 1 has a larger contact surface with the outside, so as to better avoid the short circuit phenomenon. Secondly, the cable core 12 can be stably clamped by the conical metal sleeve 41, and the cable 1 can be stably clamped by the conical pressure block 42, thereby ensuring the connection reliability between the cable 1 and the connector 2. Then, under the action of the connecting sleeve 6 and the conductive block 3, the electrical connection with the motor and the stability of the structural connection are guaranteed.

[0036] A specific application of this embodiment is: the cable 1 is extruded to form an inner support bar 11 during production, the cable core 12 is evenly arranged outside the inner support bar 11, the cable core 12 is formed on the inner support bar 11 through a filling layer 13, and finally the cable core 12 is integrally formed through a coating layer 14;

[0037] When connecting Figure 4 As shown, the inner support bar 11, the filling layer 13 and the coating layer 14 at the front end of the cable 1 are peeled off to expose a certain length of the cable core 12, the threaded cover 5 is sleeved on the outside of the cable 1, the cable 1 is inserted into the pressing sleeve 4, and the cable core 12 is spread out under the action of the dividing cone 32. At this time, the threaded cover 5 and the threaded seat 22 are screwed together, the pressing sleeve 51 presses the pressing sleeve 4 inwardly, the reset spring 43 is stretched, and the conical metal sleeve 41 presses the cable core 12 to fit in the connecting seat 31 and the dividing cone 32. The conical pressing block 42 radially presses the cable 1 in cooperation with the conical guide groove 21, the threaded cover 5 is tightened, and the connecting sleeve 6 is directly connected to the lead screw thread on the motor connecting seat;

[0038] A conductive path is formed through the cable core 12, the conductive block 3, the connecting sleeve 6 and the conductive lead screw on the motor terminal block;

[0039] When the cable 1 needs to be detached, the threaded cover 5 is loosened, and the pressing sleeve 4 is reset under the action of the reset spring 43, and the clamping of the cable 1 and the cable core 12 is released, so that the cable 1 can be taken out of the cable 1.

[0040] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0041] The preferred embodiments of the utility model disclosed above are only used to help explain the utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the utility model to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the utility model, so that technicians in the relevant technical field can well understand and use the utility model. The utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A silicone rubber motor lead wire, comprising a cable (1), wherein an inner support bar (11) is arranged at the center of the cable (1), characterized in that: The cable (1) has a plurality of cable cores (12) distributed on the outer circumference, and the cable cores (12) are in contact with each other and electrically conductive, the cable cores (12) are provided with a filling layer (13) formed on the inner support bar (11) on the outside, and a coating layer (14) is formed on the outside of the filling layer (13), and a joint (2) is provided at one end of the cable (1), a conductive block (3) is fixedly provided inside the joint (2), and a compression sleeve (4) is slidably connected inside the joint (2) ), the cable (1) and the connector (2) are plugged into each other, the cable (1) is locked in the connector (2) by sliding the pressing sleeve (4), the cable core (12) is electrically connected to the conductive block (3), a rotatable connecting sleeve (6) is provided below the conductive block (3), the connecting sleeve (6) is also electrically connected to the conductive block (3), and one end of the connector (2) is connected to a threaded cover (5) that drives the pressing sleeve (4) to slide and lock the cable (1) in the connector (2).

2. The silicone rubber motor lead wire according to claim 1, characterized in that: A conical metal sleeve (41) is fixed to the front end of the pressing sleeve (4), a conical pressing block (42) is elastically connected to the middle of the conical metal sleeve (41), and a return spring (43) is also provided between the pressing sleeve (4) and the inside of the joint (2).

3. The silicone rubber motor lead wire according to claim 2, characterized in that: The joint (2) is internally formed with a conical guide groove (21) which is pressed and matched with a conical pressing block (42). The conical pressing blocks (42) are multiple and distributed circumferentially. The conical pressing blocks (42) press the cable (1) radially inward by being pressed with the conical guide groove (21).

4. The silicone rubber motor lead wire according to claim 1, characterized in that: A connecting seat (31) is provided at the upper end of the conductive block (3), and a dividing cone (32) for evenly dispersing the cable core (12) is also provided on the connecting seat (31); the cable core (12) is pressed between the connecting seat (31), the dividing cone (32) and the conical metal sleeve (41) by the sliding of the pressing sleeve (4).

5. The silicone rubber motor lead wire according to claim 1, characterized in that: A compression sleeve (51) is arranged on the inner side of the threaded cover (5), the compression sleeve (51) is in compression contact with the outer end surface of the compression sleeve (4), and a threaded seat (22) matching the compression sleeve (51) is arranged at the end of the joint (2).

6. The silicone rubber motor lead wire according to claim 1, characterized in that: The pressing sleeve (4) and the threaded cover (5) are both internally formed with through holes for the cable (1) to pass through, and the pressing sleeve (4), the threaded cover (5) and the cable (1) are coaxial.

7. The silicone rubber motor lead wire according to claim 1, characterized in that: The connecting sleeve (6) is rotated on the bottom of the conductive block (3) and the upper end is in contact with the joint (2). The connecting sleeve (6) is provided with a thread groove inside which can directly cooperate with the screw on the motor terminal socket.

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