WO2017021052A1 - Electrical connector and illumination device - Google Patents

Electrical connector and illumination device Download PDF

Info

Publication number
WO2017021052A1
WO2017021052A1 PCT/EP2016/064296 EP2016064296W WO2017021052A1 WO 2017021052 A1 WO2017021052 A1 WO 2017021052A1 EP 2016064296 W EP2016064296 W EP 2016064296W WO 2017021052 A1 WO2017021052 A1 WO 2017021052A1
Authority
WO
WIPO (PCT)
Prior art keywords
partial structure
electrical connector
locking
present
extending portion
Prior art date
Application number
PCT/EP2016/064296
Other languages
French (fr)
Inventor
Shaozhu YANG
Jun Liu
Xiongqiang HE
Shijun Nie
Original Assignee
Osram Gmbh
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Osram Gmbh filed Critical Osram Gmbh
Publication of WO2017021052A1 publication Critical patent/WO2017021052A1/en

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V21/00—Supporting, suspending, or attaching arrangements for lighting devices; Hand grips
    • F21V21/002—Supporting, suspending, or attaching arrangements for lighting devices; Hand grips making direct electrical contact, e.g. by piercing
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21K—NON-ELECTRIC LIGHT SOURCES USING LUMINESCENCE; LIGHT SOURCES USING ELECTROCHEMILUMINESCENCE; LIGHT SOURCES USING CHARGES OF COMBUSTIBLE MATERIAL; LIGHT SOURCES USING SEMICONDUCTOR DEVICES AS LIGHT-GENERATING ELEMENTS; LIGHT SOURCES NOT OTHERWISE PROVIDED FOR
    • F21K9/00—Light sources using semiconductor devices as light-generating elements, e.g. using light-emitting diodes [LED] or lasers
    • F21K9/60—Optical arrangements integrated in the light source, e.g. for improving the colour rendering index or the light extraction
    • F21K9/65—Optical arrangements integrated in the light source, e.g. for improving the colour rendering index or the light extraction specially adapted for changing the characteristics or the distribution of the light, e.g. by adjustment of parts
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21K—NON-ELECTRIC LIGHT SOURCES USING LUMINESCENCE; LIGHT SOURCES USING ELECTROCHEMILUMINESCENCE; LIGHT SOURCES USING CHARGES OF COMBUSTIBLE MATERIAL; LIGHT SOURCES USING SEMICONDUCTOR DEVICES AS LIGHT-GENERATING ELEMENTS; LIGHT SOURCES NOT OTHERWISE PROVIDED FOR
    • F21K9/00—Light sources using semiconductor devices as light-generating elements, e.g. using light-emitting diodes [LED] or lasers
    • F21K9/20—Light sources comprising attachment means
    • F21K9/27—Retrofit light sources for lighting devices with two fittings for each light source, e.g. for substitution of fluorescent tubes
    • F21K9/272—Details of end parts, i.e. the parts that connect the light source to a fitting; Arrangement of components within end parts
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V23/00—Arrangement of electric circuit elements in or on lighting devices
    • F21V23/06—Arrangement of electric circuit elements in or on lighting devices the elements being coupling devices, e.g. connectors
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R35/00—Flexible or turnable line connectors, i.e. the rotation angle being limited
    • H01R35/04—Turnable line connectors with limited rotation angle with frictional contact members
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/62—Means for facilitating engagement or disengagement of coupling parts or for holding them in engagement
    • H01R13/627—Snap or like fastening
    • H01R13/6277—Snap or like fastening comprising annular latching means, e.g. ring snapping in an annular groove
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R33/00—Coupling devices specially adapted for supporting apparatus and having one part acting as a holder providing support and electrical connection via a counterpart which is structurally associated with the apparatus, e.g. lamp holders; Separate parts thereof
    • H01R33/94—Holders formed as intermediate parts for linking a counter-part to a coupling part

Definitions

  • the present invention relates to an electrical connector for an illumination device and an illumination device comprising this electrical connector.
  • the light engine should be electrically connected to the power source through a connector device, and the position and illumination direction of the light engine is then determined.
  • the illumination direction of the light engine cannot be adjusted, that is, the connection between the light engine and the connector device is mechanically fixed and cannot be varied, and it cannot achieve for example the rotation of the light engine relative to the connector device so as to change the illumination direction of the light engine.
  • the present invention provides a novel electrical connector and an illumination device comprising this electrical connector.
  • One portion of the electrical connector according to the present invention can be continuously rotated without separating this electrical connector such that the electrical connector is unlocked or locked.
  • the electrical connector according to the present invention has a simple structure, is easy to manufacture and assemble, and has good user friendliness.
  • an electrical connector which comprises a first part and a second part rotatably mounted on the first part, the electrical connector further comprises a first locking structure, wherein the first locking structure comprises a first partial structure provided on the first part and a second partial structure provided on the second part and can be locked with the first partial structure, wherein the first partial structure comprises at least one supporting portion and an extending portion connected with the supporting portion and in contact with the second partial structure, wherein the locking of the first partial structure and the second partial structure is released by means of elastic deformation of the extending portion.
  • the electrical connector according to the present invention comprises two parts in a simple structure.
  • the electrical connector can be unlocked by rotating one of the parts relative to the other part, and the electrical connector can be re-locked after the rotation is completed.
  • the two parts of the electrical connector according to the present invention can be unlocked or locked without separating or detaching the two parts.
  • the electrical connector according to the present invention has a locking structure which is not easy to damage, that is, the locking structure still has good performance of elastic deformation and can guarantee normal unlocking and locking even if one of the parts of the electrical connector is rotated repeatedly for a long time.
  • the supporting portion is formed to extend in a direction away from a rotation axis of the first part, and the extending portion is formed to extend in a rotational direction of the first part relative to the second part.
  • the extending portion of the electrical connector according to the present invention is preferably fixed on the first part through the supporting portion, but is not directly connected or fixed on the first part.
  • a pressing force applied to the extending portion can be dispersed in the rotational direction when the extending portion is elastically deformed, moreover, since the extending portion is not directly fixed or connected to the first part, it is not easy for the extending portion to be broken at a joint, such that a long service life and operation stability of the locking structure are ensured.
  • the extending portion comprises a contact portion in contact with the second partial structure, wherein the contact portion is at least partially received in the second partial structure when the first partial structure and the second partial structure are locked with each other, and the contact portion moves out of the second partial structure when the first partial structure and the second partial structure are unlocked.
  • the contact portion is in direct contact with the second partial structure of the second part, and when the second part is rotated, the second part applies a pressure to the extending portion through the contact portion.
  • the extending portion is fixedly connected with the supporting portion.
  • the extending portion can for example be fixedly connected with the supporting portion only at one free end, and in another situation, the extending portion can for example be fixedly connected with the supporting portion at both free ends.
  • the contact portion can be received again in the second partial structure.
  • the contact portion is designed to be form-fitted with the second partial structure.
  • the contact portion can have a shape corresponding to the second partial structure in manufacturing, which particularly facilities user releasing the locking of the first partial structure and the second partial structure successfully by rotating the second part.
  • the contact portion is configured as a protrusion and the second partial structure is configured as a groove
  • the contact portion is configured as a groove
  • the second partial structure is configured as a protrusion.
  • the protrusion can have a shape corresponding to the shape of the groove, that is, for example, when the protrusion has a circular section, the groove also can correspondingly have a circular section.
  • the second part further comprises a cover body and a second locking structure, wherein the second locking structure extends from the cover body, and the second locking structure is connected with the first part upon the second part being mounted on the first part.
  • the second locking structure is preferably designed to be coaxial with the rotation axis of the second part, in this way, when the second part is rotated, the second locking structure will not hinder the conduction of the rotation. Besides, the second locking structure ensures that the second part will not be separated from the first part when the second part is rotated.
  • the illumination device according to the present invention comprises the electrical connector as described above.
  • the illumination device according to the present invention can unlock and continuously rotate one of the parts of the electrical connector and re-lock the electrical connector, such that for example the illumination direction of the illumination device is adjusted.
  • Figure 1 shows an exploded schematic diagram of an electrical connector according to the present invention
  • Figure 2 shows a sectional schematic diagram of the electrical connector according to the present invention
  • Figure 3 shows a partial enlarged view of a first part of the electrical connector according to the present invention
  • Figure 4 shows a side view of a second part of the electrical connector according to the present invention
  • Figure 5 shows a schematic diagram of a first locking structure in a locking state of the electrical connector according to the present invention
  • Figure 6 shows a schematic diagram of the first locking structure in an unlocking state of the electrical connector according to the present invention.
  • Figure 1 shows an exploded schematic diagram of an electrical connector 100 according to the present invention.
  • the electrical connector 100 according to the present invention has a first part 1 and a second part 2 rotatably mounted on the first part 1 around a rotation axis.
  • the second part 2 of the electrical connector 100 according to the present invention can be fixedly connected with the first part 1 in a locking state, and in an unlocking state, the second part 2 can freely rotate continuously around the rotation axis relative to the first part 1 .
  • the first part 1 of the electrical connector 100 can be further mounted with a driving device and a light engine for an illumination device, and the second part 2 can be connected with a socket which can provide a power source so as to provide the electrical energy to the driving device and the light engine of the first part 1 .
  • an irradiation direction of the light engine of the illumination device can be adjusted, for example.
  • FIG. 2 shows a sectional schematic diagram of the electrical connector 100 according to the present invention.
  • the second part 2 of the electrical connector 100 according to the present invention has a second locking structure 5.
  • the second locking structure 5 can extend into the first part 1 and be fixed in the first part 1 after the second part 2 is mounted on the first part 1 , consequently, the second part 2 is prevented from being separated or escaping from the first part 1 when the first part 1 is rotated relative to the second part 2.
  • the second locking structure 5 and a cover body 4 of the second part 2 are integrally formed, which just means that the second locking structure 5 can be connected and fixed on the cover body 4 without arrangement of other connecting parts.
  • the second locking structure 5 is arranged to be coaxial with the second part 2 and the first part 1 , therefore, the second locking structure 5 will not hinder the rotation of the first part 1 when the first part 1 is rotated.
  • Figure 3 shows a partial enlarged view of the first part 1 of the electrical connector 100 according to the present invention.
  • the first part 1 according to the present invention is provided with a first partial structure 31 of a first locking structure 3, and preferably, the first part 1 can for example be provided with two first partial structures 31 , and the two first partial structures 31 can be provided at different sides symmetrically relative to the rotation axis.
  • Each of the first partial structure 31 comprises at least one supporting portion 31 1 fixed on the first part 1 and an extending portion 312 connected with the supporting portion 31 1 , wherein the extending portion 312 is preferably connected to one end of the supporting portion 31 1 away from the rotation axis.
  • the extending portion 312 is not in direct connection with the first part 1 , but is connected with the first part 1 through the supporting portion 31 1 .
  • the extending portion 312 can be connected with the supporting portion 31 1 at one free end thereof, or can be connected with two separately arranged supporting portions 31 1 at both free ends thereof.
  • the extending portion 312 which can be in contact with a second partial structure 32 of the first locking structure 3 provided on the second part 2 is elastically deformable, but the supporting portion 31 1 will not be elastically deformed. This just means that when the first part 1 is rotated, the extending portion 312 will be deformed under the pressure of the second partial structure 32, but the supporting portion 31 1 will not be deformed.
  • the extending portion 312 comprises a contact portion 3121 in direct contact with the second partial structure 32, and this contact portion 3121 can be at least partially received in the second partial structure 32 in a locking state, and moves out of the second partial structure 32 in an unlocking state.
  • Figure 4 shows a side view of the second part 2 of the electrical connector 100 according to the present invention.
  • the second partial structures 32 of the first locking structure 3 are provided on an inner surface of a side wall of the second part 2, the second partial structures 32 can be preferably designed as grooves, and the grooves can be continuously and uniformly arranged in the circumferential direction of the inner wall.
  • the grooves also can be arranged separately from each other at a predetermined interval, in this way, only after the first part 1 is rotated by a predetermined angle, can the second part 2 be re-locked with the first part 1 .
  • the second part 2 further comprises a cover body 4 and second locking structures 5 formed on the cover body 4.
  • the second locking structures 5 are integrally formed with the cover body 4, and are preferably arranged symmetrically relative to the rotation axis.
  • Figure 5 shows a schematic diagram of the first locking structure 3 in a locking state of the electrical connector 100 according to the present invention.
  • the electrical connector 100 according to the present invention When the electrical connector 100 according to the present invention is in a locking state, that is, for example, when a user applies no external force to the first part 1 of the electrical connector 100, the first part 1 cannot rotate relative to the second part 2.
  • the contact portion 3121 of the extending portion 312 of the first partial structure 31 is at least partially received in the groove as the second partial structure 32, in other words, the protrusion as the contact portion 3121 is embedded into the groove, and the groove will prevent occurrence of movement of the protrusion, particularly the movement in the rotational direction.
  • the protrusion can be kept in the groove with the aid of the elastic restoring force of the extending portion 312.
  • Figure 6 shows a schematic diagram of the first locking structure 3 in an unlocking state of the electrical connector 100 according to the present invention.
  • the contact portion 3121 of the extending portion 312 of the first partial structure 31 will be subject to the pressure from the second partial structure 32 to cause the extending portion 312 of the first partial structure 31 to be elastically deformed.
  • the contact portion 3121 will move towards the rotation axis with the action of the component of the pressure towards the rotation axis, consequently, the protrusion as the contact portion 3121 can overcome the resistance of the groove and move out of the groove.
  • the first part 1 can be rotated relative to the second part 2 continuously in the same rotational direction until the first part 1 has been rotated by a predetermined angle relative to the second part 2, alternatively, the first part 1 is rotated in a direction opposite to the previous rotational direction to allow the protrusion to move back to the previous groove.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Optics & Photonics (AREA)
  • Details Of Connecting Devices For Male And Female Coupling (AREA)
  • Connector Housings Or Holding Contact Members (AREA)

Abstract

The present invention relates to an electrical connector (100) and an illumination device comprising the electrical connector (100). The electrical connector (100) comprises a first part (1) and a second part (2) rotatably mounted on the first part (1), the electrical connector (100) further comprises a first locking structure (3), wherein the first locking structure (3) comprises a first partial structure (31) provided on the first part (1) and a second partial structure (32) provided on the second part (2) and can be locked with the first partial structure (31), wherein the first partial structure (31) comprises at least one supporting portion (311) and an extending portion (312) connected with the supporting portion (311) and in contact with the second partial structure (32), wherein the locking of the first partial structure (31) and the second partial structure (32) is released by means of elastic deformation of the extending portion (312).

Description

Description
Electrical Connector and Illumination Device
Technical Field
The present invention relates to an electrical connector for an illumination device and an illumination device comprising this electrical connector.
Background Art
For the illumination devices commonly used at present, for example, for the tubular illumination device having a light engine with a conventional light source, the light engine should be electrically connected to the power source through a connector device, and the position and illumination direction of the light engine is then determined. However, after the known connector device is connected to the light engine, the illumination direction of the light engine cannot be adjusted, that is, the connection between the light engine and the connector device is mechanically fixed and cannot be varied, and it cannot achieve for example the rotation of the light engine relative to the connector device so as to change the illumination direction of the light engine.
Besides, according to the currently known designs of other types of the connector devices, only when the user removes the connector device from the light engine, i.e. separates the connector device from the light engine, can he adjust the illumination direction of the light engine, and the light engine should be re-connected with the connector device after the adjustment is completed. The above designs of the connector device are quite unfavorable to the flexible utilization of the illumination device, and the user cannot flexibly and conveniently adjust the illumination direction or the illumination angle of the light engine to make the illumination of the illumination device adapted to particular application environments. Such designs of the illumination device inevitably limit the circumstances where the illumination device is applicable, and the user has to look for a lamp holder matching the light engine to ensure that the lamp light can irradiate on the correct direction, and such illumination device is not user friendly, either. Summary of the Invention
In order to solve the above-mentioned technical problems, the present invention provides a novel electrical connector and an illumination device comprising this electrical connector. One portion of the electrical connector according to the present invention can be continuously rotated without separating this electrical connector such that the electrical connector is unlocked or locked. The electrical connector according to the present invention has a simple structure, is easy to manufacture and assemble, and has good user friendliness.
One of the objects of the present invention is achieved via such an electrical connector which comprises a first part and a second part rotatably mounted on the first part, the electrical connector further comprises a first locking structure, wherein the first locking structure comprises a first partial structure provided on the first part and a second partial structure provided on the second part and can be locked with the first partial structure, wherein the first partial structure comprises at least one supporting portion and an extending portion connected with the supporting portion and in contact with the second partial structure, wherein the locking of the first partial structure and the second partial structure is released by means of elastic deformation of the extending portion.
The electrical connector according to the present invention comprises two parts in a simple structure. The electrical connector can be unlocked by rotating one of the parts relative to the other part, and the electrical connector can be re-locked after the rotation is completed. The two parts of the electrical connector according to the present invention can be unlocked or locked without separating or detaching the two parts. Besides, the electrical connector according to the present invention has a locking structure which is not easy to damage, that is, the locking structure still has good performance of elastic deformation and can guarantee normal unlocking and locking even if one of the parts of the electrical connector is rotated repeatedly for a long time.
According to a further preferred embodiment of the present invention, the supporting portion is formed to extend in a direction away from a rotation axis of the first part, and the extending portion is formed to extend in a rotational direction of the first part relative to the second part. The extending portion of the electrical connector according to the present invention is preferably fixed on the first part through the supporting portion, but is not directly connected or fixed on the first part. When for example the second part is rotated, a pressing force applied to the extending portion can be dispersed in the rotational direction when the extending portion is elastically deformed, moreover, since the extending portion is not directly fixed or connected to the first part, it is not easy for the extending portion to be broken at a joint, such that a long service life and operation stability of the locking structure are ensured.
According to a further preferred embodiment of the present invention, the extending portion comprises a contact portion in contact with the second partial structure, wherein the contact portion is at least partially received in the second partial structure when the first partial structure and the second partial structure are locked with each other, and the contact portion moves out of the second partial structure when the first partial structure and the second partial structure are unlocked. The contact portion is in direct contact with the second partial structure of the second part, and when the second part is rotated, the second part applies a pressure to the extending portion through the contact portion.
Preferably, at least one free end of the extending portion is fixedly connected with the supporting portion. According to an embodiment of the present invention, for example, in one situation, the extending portion can for example be fixedly connected with the supporting portion only at one free end, and in another situation, the extending portion can for example be fixedly connected with the supporting portion at both free ends.
Preferably, when the first partial structure and the second partial structure are unlocked, and when the second part continues to be rotated, the contact portion can be received again in the second partial structure. This thus ensures repeated use of the locking structure of the electrical connector, for example, after the second part is rotated by any angle, the first partial structure of the first part always can be re-locked with the second partial structure of the second part. Preferably, the contact portion is designed to be form-fitted with the second partial structure. The contact portion can have a shape corresponding to the second partial structure in manufacturing, which particularly facilities user releasing the locking of the first partial structure and the second partial structure successfully by rotating the second part. Preferably, the contact portion is configured as a protrusion and the second partial structure is configured as a groove, alternatively, the contact portion is configured as a groove and the second partial structure is configured as a protrusion. The protrusion can have a shape corresponding to the shape of the groove, that is, for example, when the protrusion has a circular section, the groove also can correspondingly have a circular section.
According to a further preferred embodiment of the present invention, the second part further comprises a cover body and a second locking structure, wherein the second locking structure extends from the cover body, and the second locking structure is connected with the first part upon the second part being mounted on the first part. The second locking structure is preferably designed to be coaxial with the rotation axis of the second part, in this way, when the second part is rotated, the second locking structure will not hinder the conduction of the rotation. Besides, the second locking structure ensures that the second part will not be separated from the first part when the second part is rotated.
The other object of the present invention is achieved by such an illumination device that the illumination device according to the present invention comprises the electrical connector as described above. The illumination device according to the present invention can unlock and continuously rotate one of the parts of the electrical connector and re-lock the electrical connector, such that for example the illumination direction of the illumination device is adjusted.
Brief Description of the Drawings
The accompanying drawings constitute a part of the present Description and are used to provide further understanding of the present invention. Such accompanying drawings illustrate the embodiments of the present invention and are used to describe the principles of the present invention together with the Description. In the accompanying drawings the same components are represented by the same reference numbers. As shown in the drawings: Figure 1 shows an exploded schematic diagram of an electrical connector according to the present invention;
Figure 2 shows a sectional schematic diagram of the electrical connector according to the present invention;
Figure 3 shows a partial enlarged view of a first part of the electrical connector according to the present invention; Figure 4 shows a side view of a second part of the electrical connector according to the present invention;
Figure 5 shows a schematic diagram of a first locking structure in a locking state of the electrical connector according to the present invention; Figure 6 shows a schematic diagram of the first locking structure in an unlocking state of the electrical connector according to the present invention.
Detailed Description of the Embodiments
Figure 1 shows an exploded schematic diagram of an electrical connector 100 according to the present invention. The electrical connector 100 according to the present invention has a first part 1 and a second part 2 rotatably mounted on the first part 1 around a rotation axis. The second part 2 of the electrical connector 100 according to the present invention can be fixedly connected with the first part 1 in a locking state, and in an unlocking state, the second part 2 can freely rotate continuously around the rotation axis relative to the first part 1 . The first part 1 of the electrical connector 100 can be further mounted with a driving device and a light engine for an illumination device, and the second part 2 can be connected with a socket which can provide a power source so as to provide the electrical energy to the driving device and the light engine of the first part 1 . In a situation that the first part 1 is rotated relative to the second part 2, an irradiation direction of the light engine of the illumination device can be adjusted, for example.
Figure 2 shows a sectional schematic diagram of the electrical connector 100 according to the present invention. The second part 2 of the electrical connector 100 according to the present invention has a second locking structure 5. The second locking structure 5 can extend into the first part 1 and be fixed in the first part 1 after the second part 2 is mounted on the first part 1 , consequently, the second part 2 is prevented from being separated or escaping from the first part 1 when the first part 1 is rotated relative to the second part 2. According to a preferred embodiment of the present invention, the second locking structure 5 and a cover body 4 of the second part 2 are integrally formed, which just means that the second locking structure 5 can be connected and fixed on the cover body 4 without arrangement of other connecting parts. Moreover, the second locking structure 5 is arranged to be coaxial with the second part 2 and the first part 1 , therefore, the second locking structure 5 will not hinder the rotation of the first part 1 when the first part 1 is rotated.
Figure 3 shows a partial enlarged view of the first part 1 of the electrical connector 100 according to the present invention. The first part 1 according to the present invention is provided with a first partial structure 31 of a first locking structure 3, and preferably, the first part 1 can for example be provided with two first partial structures 31 , and the two first partial structures 31 can be provided at different sides symmetrically relative to the rotation axis. Each of the first partial structure 31 comprises at least one supporting portion 31 1 fixed on the first part 1 and an extending portion 312 connected with the supporting portion 31 1 , wherein the extending portion 312 is preferably connected to one end of the supporting portion 31 1 away from the rotation axis. Thus, the extending portion 312 is not in direct connection with the first part 1 , but is connected with the first part 1 through the supporting portion 31 1 . Besides, the extending portion 312 can be connected with the supporting portion 31 1 at one free end thereof, or can be connected with two separately arranged supporting portions 31 1 at both free ends thereof. The extending portion 312 which can be in contact with a second partial structure 32 of the first locking structure 3 provided on the second part 2 is elastically deformable, but the supporting portion 31 1 will not be elastically deformed. This just means that when the first part 1 is rotated, the extending portion 312 will be deformed under the pressure of the second partial structure 32, but the supporting portion 31 1 will not be deformed. The extending portion 312 comprises a contact portion 3121 in direct contact with the second partial structure 32, and this contact portion 3121 can be at least partially received in the second partial structure 32 in a locking state, and moves out of the second partial structure 32 in an unlocking state. Figure 4 shows a side view of the second part 2 of the electrical connector 100 according to the present invention. The second partial structures 32 of the first locking structure 3 are provided on an inner surface of a side wall of the second part 2, the second partial structures 32 can be preferably designed as grooves, and the grooves can be continuously and uniformly arranged in the circumferential direction of the inner wall. Besides, according to the actual requirement, the grooves also can be arranged separately from each other at a predetermined interval, in this way, only after the first part 1 is rotated by a predetermined angle, can the second part 2 be re-locked with the first part 1 . The second part 2 further comprises a cover body 4 and second locking structures 5 formed on the cover body 4. The second locking structures 5 are integrally formed with the cover body 4, and are preferably arranged symmetrically relative to the rotation axis. Figure 5 shows a schematic diagram of the first locking structure 3 in a locking state of the electrical connector 100 according to the present invention. When the electrical connector 100 according to the present invention is in a locking state, that is, for example, when a user applies no external force to the first part 1 of the electrical connector 100, the first part 1 cannot rotate relative to the second part 2. In this situation, the contact portion 3121 of the extending portion 312 of the first partial structure 31 is at least partially received in the groove as the second partial structure 32, in other words, the protrusion as the contact portion 3121 is embedded into the groove, and the groove will prevent occurrence of movement of the protrusion, particularly the movement in the rotational direction. Besides, the protrusion can be kept in the groove with the aid of the elastic restoring force of the extending portion 312.
Figure 6 shows a schematic diagram of the first locking structure 3 in an unlocking state of the electrical connector 100 according to the present invention. When for example the user applies an external force to the first part 1 to allow the first part 1 to rotate relative to the second part 2, the contact portion 3121 of the extending portion 312 of the first partial structure 31 will be subject to the pressure from the second partial structure 32 to cause the extending portion 312 of the first partial structure 31 to be elastically deformed. At this point, by means of elastic deformation, the contact portion 3121 will move towards the rotation axis with the action of the component of the pressure towards the rotation axis, consequently, the protrusion as the contact portion 3121 can overcome the resistance of the groove and move out of the groove. When it continues to apply a force to the first part 1 to allow the first part 1 to keep on rotating, the protrusion moved out of one of the grooves will then enter into another groove, the first part 1 thereby finishes one rotation relative to the second part 2. Likewise, the first part 1 can be rotated relative to the second part 2 continuously in the same rotational direction until the first part 1 has been rotated by a predetermined angle relative to the second part 2, alternatively, the first part 1 is rotated in a direction opposite to the previous rotational direction to allow the protrusion to move back to the previous groove.
The above is merely preferred embodiments of the present invention but not to limit the present invention. For the person skilled in the art, the present invention may have various alterations and changes. Any alterations, equivalent substitutions, improvements, within the spirit and principle of the present invention, should be covered in the protection scope of the present invention. List of reference signs
1 first part
2 second part
3 first locking structure
4 cover body
5 second locking structure
31 first partial structure
32 second partial structure
31 1 supporting portion
312 extending portion 3121 contact portion
100 electrical connector.

Claims

What is claimed is:
1 . An electrical connector (100) for an illumination device, comprising a first part (1 ) and a second part (2) rotatably mounted on the first part (1 ), the electrical connector (100) further comprising a first locking structure (3), wherein the first locking structure (3) comprises a first partial structure (31 ) provided on the first part (1 ) and a second partial structure (32) which is provided on the second part (2) and can be locked with the first partial structure (3), characterized in that the first partial structure (31 ) comprises at least one supporting portion (31 1 ) and an extending portion (312) which is connected with the supporting portion (31 1 ) and in contact with the second partial structure (31 ), wherein the locking of the first partial structure (31 ) and the second partial structure (21 ) is released by means of elastic deformation of the extending portion (312).
2. The electrical connector (100) according to claim 1 , characterized in that the supporting portion (31 1 ) extends in a direction away from a rotation axis of the first part (1 ), and the extending portion (312) extends in a rotational direction of the first part (1 ) relative to the second part (2).
3. The electrical connector (100) according to claim 1 or 2, characterized in that the extending portion (312) comprises a contact portion (3121 ) in contact with the second partial structure (32), wherein the contact portion (3121 ) is at least partially received in the second partial structure (32) when the first partial structure (31 ) and the second partial structure (32) are locked with each other, and the contact portion (3121 ) moves out of the second partial structure (32) when the first partial structure (31 ) and the second partial structure (32) are unlocked.
4. The electrical connector (100) according to claim 1 or 2, characterized in that at least one free end of the extending portion (312) is fixedly connected with the supporting portion (31 1 ).
5. The electrical connector (100) according to claim 3, characterized in that when the first partial structure (31 ) and the second partial structure (32) are unlocked and the second part (2) continues to be rotated, the contact portion (3121 ) can be received again in the second partial structure (32).
6. The electrical connector (100) according to claim 5, characterized in that the contact portion (3121 ) is designed to be form-fitted with the second partial structure
1 (32).
7. The electrical connector (100) according to claim 6, characterized in that the contact portion (3121 ) is configured as a protrusion and the second partial structure (32) is configured as a groove, or the contact portion (3121 ) is configured as a groove and the second partial structure (32) is configured as a protrusion.
8. The electrical connector (100) according to claim 2, characterized in that the second part (2) further comprises a cover body (4) and a second locking structure (5), wherein the second locking structure (5) extends from the cover body (4), and the second locking structure (5) is connected with the first part (1 ) upon the second part (2) being mounted on the first part (1 ).
9. The electrical connector (100) according to claim 8, characterized in that the second locking structure (5) is arranged symmetrically with respect to the rotation axis.
10. An illumination device, characterized in that the illumination device comprises the electrical connector (100) according to any one of claims 1 -9.
2
PCT/EP2016/064296 2015-08-04 2016-06-21 Electrical connector and illumination device WO2017021052A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201510472768.3A CN106439751B (en) 2015-08-04 2015-08-04 Electrical connector and lighting device
CN201510472768.3 2015-08-04

Publications (1)

Publication Number Publication Date
WO2017021052A1 true WO2017021052A1 (en) 2017-02-09

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CN (1) CN106439751B (en)
WO (1) WO2017021052A1 (en)

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