Connector cable retention structure

Abstract

This technology provides a way to prevent damage to connector cables when vibrations are input from the outside. [Solution] The connector cable holding structure comprises a connector part that can be detachably attached to the main body of the device, a connector cable with one end connected to the connector part, and a cable holding part fixed to the connector part and holding the connector cable. The connector cable extending between the connector part and the cable holding part is flexible.

Description

Technical Field

[0001] The technology disclosed in this specification relates to a holding structure for a connector cable.

Background Art

[0002] Patent Document 1 discloses a holding structure for a connector cable, which includes a connector portion detachably attached to a device body, and a connector cable having one end connected to the connector portion.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] In the holding structure of the connector cable of Patent Document 1, a clamp part is provided near the connector part, and the connector cable is hooked on the clamp part. In Patent Document 1, no consideration is given to damage to the connector cable when vibration is input from the outside.

[0005] This specification provides a technology capable of suppressing damage to the connector cable when vibration is input from the outside.

Means for Solving the Problems

[0006] In a first aspect of the present technology, the holding structure of the connector cable may include a connector portion detachably attached to a device body, a connector cable having one end connected to the connector portion, and a cable holding portion fixed to the connector portion and holding the connector cable. The connector cable extending between the connector portion and the cable holding portion may be bent.

[0007] With the above configuration, even if vibrations are input from the outside, the connector cable is held by the cable holder, thus preventing the connector cable from coming into contact with other parts. Furthermore, because the connector cable extending between the connector and the cable holder is flexible, it has a greater degree of freedom of movement compared to a configuration where the connector cable extends in a straight line. Therefore, damage to the connector cable when vibrations are input from the outside can be suppressed.

[0008] In a second embodiment, in the first embodiment, a predetermined range of the connector cable may be covered by the covering member. The cable holding portion may hold the connector cable via the covering member.

[0009] The above configuration improves the durability of the connector cable compared to a configuration where the cable holder directly holds the connector cable.

[0010] In a third embodiment, in the first or second embodiment described above, the cable holding portion may have a fitting portion into which the covering member is fitted.

[0011] According to the above configuration, the cable holding portion can securely hold the covering material.

[0012] In a fourth embodiment, in the third embodiment, the cable holding portion may extend along a specific direction and have a fitting groove in which the covering member and the connector cable are arranged. The width of the fitting groove may increase toward one side of the specific direction.

[0013] According to the above configuration, the covering member can be easily fitted into the fitting groove.

[0014] In the fifth embodiment, in any one of the first to fourth embodiments, the cable holding portion may be connected to the connector portion via a beam portion extending from the connector portion. The mass of the cable holding portion may be greater than the mass of the beam portion.

[0015] According to the above configuration, the cable holding section functions as the mass of the dynamic damper by being held via a flexible beam section. Therefore, vibrations transmitted to the connector cable can be suppressed.

[0016] In the sixth embodiment, in any one of the first to fifth embodiments, the cable holding portion may have a clamp portion for holding the connector cable.

[0017] According to the above configuration, the connector cable can be securely held by the cable holding part.

[0018] In the seventh embodiment, in any one of the first to sixth embodiments described above, the device body may be a sensor.

[0019] The sensor may be used in environments where external vibrations are input. Therefore, damage to the connector cable when external vibrations are input can be suppressed.

[0020] In the eighth aspect, in any one of the first to seventh aspects described above, the device body may be a resolver for detecting the angle of the motor rotor.

[0021] The resolver can be used in environments where external vibrations are input. Therefore, it can help prevent damage to the connector cable when external vibrations are input.

[0022] In the ninth embodiment, in any one of the first to eighth embodiments, the extending direction of the connector cable may change by 90 degrees or more between the connector portion and the cable holding portion.

Brief Description of the Drawings

[0023] [Figure 1] It is a schematic diagram of the holding structure 2 of the connector cable. [Figure 2] It is a cross-sectional view of the cable holding part 14 and the connector cables 12A to 12C as seen from the Y direction. [Figure 3] It is a view of the cable holding part 14 as seen from the Z direction. [Figure 4] It is a view showing the state before the covering member 20 is held by the cable holding part 14. [Figure 5] [[ID=,18]]It is a schematic diagram of the holding structure 102 of the connector cable.

Embodiments for Carrying Out the Invention

[0024] (Example) Referring to FIGS. 1 to 3, the holding structure 2 of the connector cable will be described. Hereinafter, the holding structure 2 of the connector cable will be referred to as "holding structure 2". The holding structure 2 in the example is a structure for holding the connector cable attached to the resolver 4 that detects the angle of the rotor of the motor.

[0025] The holding structure 2 includes a connector part 10, a plurality of connector cables 12A to 12C, a cable holding part 14, a base part 16, and a beam part 18. Hereinafter, the plurality of connector cables 12A to 12C will be collectively referred to as "connector cable 12". The connector part 10 is detachably attached to the resolver 4.

[0026] One end of the connector cable 12 is connected to the connector part 10, and the other end of the connector cable 12 is connected to a connector part that is attached to a control device such as an ECU. A predetermined range of the connector cable 12 is covered by the covering member 20. The predetermined range will be explained in detail later. Hereinafter, the portion of the connector cable 12 that extends between the connector part 10 and the covering member 20 will be referred to as the extended portion 12D. The angle between the central axis A of the connector part 10 and the extended portion 12D near the connector part 10 is angle AN1. Also, the angle between the imaginary line VL, which connects the -Z end of the connector part 10 and the -Z end of the covering member 20, and the central axis A of the connector part 10 is angle AN2. Angle AN1 is smaller than angle AN2. Furthermore, the total length of the extended portion 12D is shorter than the imaginary line VL. That is, in the holding state where the covering member 20 is held by the cable holding part 14, the extended portion 12D is bent. Furthermore, in the held state, the extension direction of the extension portion 12D changes by approximately 180 degrees between the connector portion 10 and the covering member 20. Specifically, the extension direction of the extension portion 12D changes from the -Z direction to the Z direction.

[0027] As shown in Figure 2, the covering member 20 has a main body portion 22 and a protruding portion 24. The main body portion 22 has a cylindrical shape (solid shape). The end of the main body portion 22 in the -Z direction is located on the -Z side of the end of the cable holding portion 14 in the -Z direction. The end of the main body portion 22 in the Z direction is located on the Z side of the end of the cable holding portion 14 in the Z direction. That is, in the Z direction, the main body portion 22 is longer than the cable holding portion 14. The main body portion 22 holds the connector cable 12 inside. The protruding portion 24 has an annular shape that protrudes outward from the outer peripheral surface of the main body portion 22. The protruding portion 24 is provided around the entire circumference of the outer peripheral surface of the main body portion 22. As an example, the covering member 20 is made of polyvinyl chloride, polyethylene, and urethane. In modified examples, the protruding portion 24 does not have to be provided around the entire circumference of the outer peripheral surface of the main body portion 22. For example, the protruding portion 24 may include one or more projections.

[0028] As shown in Figure 1, the cable holding portion 14 faces the connector portion 10 in the X direction. The cable holding portion 14 has a truncated pyramidal shape, with the width at both ends in the X direction narrowing towards the -Z direction. As shown in Figure 3, the cable holding portion 14 includes a fitting groove 30 and a slit 32. The fitting groove 30 is located in the center of the cable holding portion 14. The fitting groove 30 and the slit 32 extend along the Z direction. The slit 32 communicates with the fitting groove 30. The width of the slit 32 in the X direction is designed to allow the connector cable 12 to pass through.

[0029] As shown in Figure 2, the fitting groove 30 expands in diameter as it moves toward the Z direction. The diameter D1 at the Z-direction end of the fitting groove 30 is larger than the outer diameter of the protrusion 24 of the covering member 20. The diameter D2 at the -Z-direction end of the fitting groove 30 is approximately the same as the diameter of the covering member 20. The diameter D2 at the -Z-direction end of the fitting groove 30 is smaller than the outer diameter of the protrusion 24 of the covering member 20.

[0030] As shown in Figure 1, the base portion 16 is fixed to the connector cable 12. For example, the base portion 16 is glued to the connector cable 12. The base portion 16 has a flat plate shape. The beam portion 18 connects the base portion 16 and the cable holding portion 14. The beam portion 18 is also flexible (bending elastic). Because the base portion 16 is connected to the connector portion 10, the cable holding portion 14 is connected to the connector portion 10 via the beam portion 18.

[0031] For example, the cable holding portion 14, the base portion 16, and the beam portion 18 are made of resin. In this embodiment, the sum of the mass of the cable holding portion 14 and the mass of the covering member 20 is configured to be greater than the mass of the beam portion 18. Furthermore, the mass of the cable holding portion 14 is also configured to be greater than the mass of the beam portion 18. With such a configuration, the covering member 20 and the cable holding portion 14 can function as the mass of a dynamic damper. That is, the covering member 20 and the cable holding portion 14 can vibrate relative to the connector portion 10. In this embodiment, a predetermined range of the connector cable 12 is adjusted so that the extended portion 12D in the holding state bends to an extent that does not hinder the operation of the covering member 20 and the cable holding portion 14, which function as the mass of a dynamic damper.

[0032] Referring to Figure 4, the procedure for holding the covering member 20 in the cable holding part 14 will be described. First, as shown in Figure 4, a part of the covering member 20 is placed in the fitting groove 30 of the cable holding part 14. Then, the connector part 10 is attached to the resolver 4. After that, the covering member 20 is moved in the -Z direction. As a result, as shown in Figure 2, the protruding part 24 of the covering member 20 comes into contact with the fitting groove 30 of the cable holding part 14, and the covering member 20 is fitted into the fitting groove 30. As a result, the covering member 20 is held by the cable holding part 14. That is, the connector cable 12 is held by the cable holding part 14 via the covering member 20. In addition, because the covering member 20 is held by the cable holding part 14, one end of the connector cable 12 moves closer to the central axis A of the connector part 10.

[0033] As described above, the holding structure 2 comprises a connector part 10 that is detachably attached to the resolver 4 (an example of the "device body"), a connector cable 12 with one end connected to the connector part 10, and a cable holding part 14 fixed to the connector part 10 and holding the connector cable 12. The connector cable 12 extending between the connector part 10 and the cable holding part 14 is flexed.

[0034] With the above configuration, even if vibrations are input from the outside, the connector cable 12 is held by the cable holding part 14, thus preventing the connector cable 12 from coming into contact with other parts. Furthermore, since the connector cable 12 extending between the connector part 10 and the cable holding part 14 is flexible, the connector cable 12 has a greater degree of freedom of movement compared to a configuration in which the connector cable 12 extends in a straight line. Therefore, damage to the connector cable 12 when vibrations are input from the outside can be prevented.

[0035] In particular, resolver 4 can be used in environments where vibrations are input from the outside. Therefore, damage to the connector cable 12 when vibrations are input from the outside can be suppressed.

[0036] Furthermore, a predetermined area of ​​the connector cable 12 is covered by the covering member 20. The cable holding part 14 holds the connector cable 12 via the covering member 20.

[0037] With the above configuration, the durability of the connector cable 12 can be improved compared to a configuration in which the cable holding part 14 directly holds the connector cable 12.

[0038] Furthermore, the cable holding portion 14 has a fitting groove 30 (an example of a "fitting portion") into which the covering member 20 fits.

[0039] With the above configuration, the cable holding portion 14 can securely hold the covering member 20.

[0040] Furthermore, the cable holding portion 14 extends along the Z direction (an example of a "specific direction") and has a fitting groove 30 in which the covering member 20 and the connector cable 12 are positioned. The width of the fitting groove 30 increases as it moves toward the Z direction (an example of one side of a "specific direction").

[0041] According to the above configuration, the covering member 20 can be easily fitted into the fitting groove 30.

[0042] Furthermore, the cable holding section 14 is connected to the connector section 10 via a beam section 18 that extends from the connector section 10. The mass of the cable holding section 14 is greater than the mass of the beam section 18.

[0043] According to the above configuration, the cable holding portion 14 functions as the mass of the dynamic damper by being held via the flexible beam portion 18. Therefore, vibrations transmitted to the connector cable 12 can be suppressed.

[0044] The specific examples of the technology disclosed in this specification have been described in detail above, but these are merely illustrative and do not limit the scope of the claims. The technology described in the claims includes various modifications and changes to the specific examples described above.

[0045] (First Modification) The cable holding portion 14 does not need to have a fitting groove. In this modification, the covering member 20 may be fixed to the cable holding portion 14 with an adhesive or the like. In another modification, the cable holding portion 14 does not need to have a fitting groove, and the connector cable 12 does not need to be covered by the covering member 20. In this modification, the connector cable 12 may be fixed to the cable holding portion 14 with an adhesive or the like.

[0046] (Second Modification) The cable holding portion 14 may have a recess corresponding to the protruding portion 24 of the covering member 20. In this modification, the recess is also an example of a "fitting portion". Alternatively, the main body portion 22 of the covering member 20 may have a recess, and the cable holding portion 14 may have a protruding portion corresponding to the recess. In this modification, the protruding portion is also an example of a "fitting portion".

[0047] (Third Modified Example) Referring to Figure 5, the connector cable holding structure 102 according to the third modified example will be described. Components common to the embodiment are denoted by the same reference numerals and their descriptions are omitted.

[0048] As shown in Figure 5, the holding structure 102 comprises a connector portion 10, a plurality of connector cables 12A to 12C, and a cable holding portion 114. The cable holding portion 114 comprises a base portion 116 and a clamp portion 118. The base portion 116 is fixed to the connector portion 10. The clamp portion 118 is connected to the base portion 116. The clamp portion 118 clamps the outer circumferential surface of the covering member 120. The covering member 120 is the same as the covering member 20 in the embodiment, except that it does not have any protruding portions. Even with this configuration, wear and damage to the connector cable 12 can be suppressed. In addition, the cable holding portion 114 can firmly hold the covering member 120 (connector cable 12).

[0049] In this modified example, the connector cable 12 does not need to be covered by the covering member 120. In this modified example, the cable holding portion 114 directly holds the connector cable 12.

[0050] (Fourth modified example) The "device body" is not limited to the resolver 4, but may be a sensor that detects the rotation speed, etc.

[0051] (Fifth Modification) The change in the extending direction of the connector cable 12 between the connector portion 10 and the covering member 20 may be less than 90 degrees.

[0052] Furthermore, the technical elements described herein or in the drawings demonstrate technical usefulness individually or in various combinations, and are not limited to the combinations described in the claims at the time of filing. In addition, the technologies illustrated herein or in the drawings can achieve multiple objectives simultaneously, and achieving even one of these objectives constitutes technical usefulness in itself. [Explanation of Symbols]

[0053] 2: Holding structure, 4: Resolver, 10: Connector part, 12: Connector cable, 12A-12C: Connector cable, 12D: Extension part, 14: Cable holding part, 16: Base part, 18: Beam part, 20: Covering member, 22: Main body part, 24: Protruding part, 30: Fitting groove, 32: Slit, 102: Holding structure, 114: Cable holding part, 116: Base part, 118: Clamp part, 120: Covering member

Claims

1. A connector that can be detachably attached to the main unit of the device, A connector cable, one end of which is connected to the connector portion, The connector portion is fixed to the cable holding portion which holds the connector cable, The connector cable extending between the connector portion and the cable holding portion is bent. Retaining structure for connector cables.

2. A predetermined range of the connector cable is covered by a covering member. The connector cable holding structure according to claim 1, wherein the cable holding portion holds the cable holding portion via the covering member.

3. The connector cable holding structure according to claim 2, wherein the cable holding portion has a fitting portion into which the covering member fits.

4. The cable holding portion extends along a specific direction and has a fitting groove in which the covering member and the connector cable are arranged. The connector cable holding structure according to claim 3, wherein the width of the fitting groove increases toward one side in the specific direction.

5. The cable holding portion is connected to the connector portion via a beam portion extending from the connector portion. The connector cable holding structure according to claim 1, wherein the mass of the cable holding portion is greater than the mass of the beam portion.

6. The connector cable holding structure according to claim 1, wherein the cable holding portion has a clamp portion for holding the connector cable.

7. The connector cable holding structure according to claim 1, wherein the device body is a sensor.

8. The connector cable holding structure according to claim 1, wherein the device body is a resolver for detecting the angle of the motor rotor.

9. The connector cable holding structure according to claim 1, wherein the extending direction of the connector cable changes by 90 degrees or more between the connector portion and the cable holding portion.

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