An LED light bulb

Abstract

The application discloses an LED bulb, which comprises a lamp plate, a plastic base, a lampshade, a threaded iron head and an iron nail, the lamp plate is fixedly installed in the plastic base, the lampshade is fixedly installed at the upper end of the plastic base and covers the lamp plate, the threaded iron head is installed at the lower end of the plastic base, and the iron nail is fixedly installed on an insulating disc at the lower end of the threaded iron head; the lower end of the plastic base is provided with a connecting column, the connecting column is provided with a left notch and a right notch, and the left notch and the right notch are separated by a partition plate; a metal contact plate is fixedly arranged at the right side of the partition plate in the right notch, the metal contact plate is electrically connected with the needle end of the iron nail, and the lower end of the connecting column is slidably connected with a pressing block assembly connected with the insulating disc in the left-right direction; the LED bulb is simple in structure and can realize efficient production and assembly.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of LED lamp, in particular to a LED bulb. BACKGROUND

[0002] LED light emitting diode is a kind of solid-state semiconductor device that can convert electrical energy into visible light, which can directly convert electricity into light. LED bulb is a bulb made of LED lamp as light source, which not only has low power consumption and long service life, but also has similar shape and connection mode to traditional bulb, thereby being more convenient for replacing traditional bulb. Therefore, LED bulb has been rapidly applied in people's life. At present, LED bulb is generally composed of a lamp panel with LED lamp, a plastic base, a lampshade, a threaded iron head and a fixing iron nail. When assembling, the wire core on the lamp panel is bent and clamped between the plastic base and the threaded iron head. Since the wire core is relatively fragile, the threaded iron head and the plastic base are sheared during clamping and fixing, which easily causes damage to the wire core and affects the service life of the LED bulb. In addition, since the length of the wire is not uniform, the wire core will protrude out of the threaded iron head after installation, which may cause electric shock if not handled. Moreover, when installing another wire, the wire core needs to be pulled out from the small hole in the center of the threaded iron head, which affects the assembly speed and reduces the production quality of the LED bulb. SUMMARY

[0003] The present application aims to provide a LED bulb which has simple structure and can efficiently realize production and assembly.

[0004] To achieve the above-mentioned purpose, the present application provides the following technical scheme: a LED bulb, comprising a lamp panel, a plastic base, a lampshade, a threaded iron head and an iron nail, the lamp panel is fixedly installed in the plastic base, the lampshade is fixedly installed at the upper end of the plastic base and covers the lamp panel, the threaded iron head is installed at the lower end of the plastic base, and the iron nail is fixedly installed on the insulating disc at the lower end of the threaded iron head; the lower end of the plastic base is provided with a connecting column extending downward, the lower end of the connecting column abuts against the upper end of the insulating disc, the connecting column is provided with a left slot and a right slot, and the left slot and the right slot are separated by a partition plate; a metal contact plate is fixedly arranged in the right slot on the right side of the partition plate, and the metal contact plate is electrically connected with the needle end of the iron nail; when the lamp panel is installed in the plastic base, the left wire on the lamp panel extends downward into the left slot, and the right wire extends into the right slot; the lower end of the connecting column is slidably connected with a pressing block assembly connected with the insulating disc in the left-right direction; when the threaded iron head drives the insulating disc to rotate, the pressing block assembly moves to the left to press the left wire tightly on the inner side of the threaded iron head, and at the same time, the right wire is pressed tightly on the metal contact plate.

[0005] Further technical solutions, the pressing block assembly includes a front sliding block and a rear sliding block, the bottom of the connecting column is provided with a front sliding groove communicating with the left and right notches in the left-right direction, and the rear side is provided with a rear sliding groove communicating with the left and right notches in the left-right direction, the front sliding block is slidably connected in the front sliding groove in the left-right direction, the rear sliding block is slidably connected in the rear sliding groove in the left-right direction, the left end of the front sliding block and the rear sliding block is provided with a left pressing block located in the left notch, and the right end of the front sliding block and the rear sliding block is provided with a right pressing block located in the right notch.

[0006] Further technical solutions, when the left guide wire extends downward into the left notch, the lower end of the left guide wire is located between the left pressing block and the inner side wall of the threaded iron head, and when the right guide wire extends into the right notch, the lower end of the right guide wire is located between the right pressing block and the metal contact plate; when the pressing block assembly moves to the left, the left pressing block presses the lower end of the left guide wire on the inner side wall of the threaded iron head, and the right pressing block presses the lower end of the right guide wire on the metal contact plate.

[0007] Further technical solutions, the upper end of the insulating disc is provided with an avoiding cut groove, the lower end of the left pressing block is provided with a protruding column extending into the avoiding cut groove, the right side of the avoiding cut groove is an arc-shaped side wall, when the insulating disc rotates, the arc-shaped side wall contacts the protruding column and pushes the protruding column to move to the left, when the protruding column moves to the left, the left pressing block and the right pressing block move to the left synchronously.

[0008] Further technical solutions, the upper end of the partition plate is provided with a left inclined surface for guiding the left guide wire to extend into the left notch, and the upper end of the partition plate is provided with a right inclined surface for guiding the right guide wire to extend into the right notch.

[0009] Further technical solutions, the right side of the partition plate is provided with a mounting groove, and the metal contact plate is fixedly arranged in the mounting groove.

[0010] Further technical solutions, the bottom of the partition plate is provided with a mounting hole coaxial with the needle part of the iron nail, the metal contact plate is provided with a connecting hole coaxial with the mounting hole, the lower end of the insulating disc is provided with a clamping groove, and the bottom of the iron nail is provided with a protruding block for inserting into the clamping groove; when the iron nail is installed at the bottom of the contact disc, the needle part of the iron nail passes through the mounting hole and inserts into the connecting hole, and the protruding block extends into the clamping groove, at this time, the needle part of the iron nail inserted into the mounting hole is in interference connection with the partition plate.

[0011] Further technical solutions, the plastic bottom support is provided with an annular groove, and when the threaded iron head is fixedly installed on the plastic bottom support, the upper end of the threaded iron head is buckled to form a protruding edge extending into the annular groove.

[0012] Beneficial effects

[0013] Compared with the prior art, the technical scheme of the present application has the following advantages:

[0014] 1. By setting left and right inclined surfaces on the upper end of the partition plate of the plastic base, the left and right wires are automatically separated when the lamp plate is placed into the plastic base, facilitating the separate fixing of the left and right wires, avoiding mutual interference between the left and right wires, reducing the installation difficulty, and improving the installation quality.

[0015] 2. By setting the slidable right pressing block and the metal contact plate, the inner core of the right wire is extruded on the metal contact plate by controlling the left movement of the right pressing block during installation, the right wire is completed installation through the connection of the metal contact plate and the iron nail, and the inner core of the right wire is not damaged.

[0016] 3. By setting the slidable left pressing block, the inner core of the left wire and the inner side wall of the threaded iron head are extruded together by the left movement of the left pressing block, so that the left wire is connected in the threaded iron head and will not protrude, avoiding electric leakage and improving the safety of the bulb.

[0017] 4. By placing the inner core of the left wire in the threaded iron head for connection, the left wire does not need to pass through the threaded iron head during installation of the left wire, making the installation of the left wire more simple and improving the installation efficiency of the wire. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 is a sectional view of the LED bulb of the present application;

[0019] Figure 2 is a partial sectional view of the LED bulb during the assembly process of the present application;

[0020] Figure 3 is a sectional view of the present application Figure 2 in A-A direction;

[0021] Figure 4 is a sectional view of the present application Figure 2 in B-B direction;

[0022] Figure 5 is a sectional view of the present application Figure 2 in C-C direction. DETAILED DESCRIPTION

[0023] Please refer to Figures 1-5As shown, an LED bulb comprises a lamp panel 3, a plastic base 1, a lampshade 2, a threaded iron head 4, and an iron nail 5. The lamp panel 3 is fixedly installed in the plastic base 1. The lampshade 2 is fixedly installed at the upper end of the plastic base 1 and covers the lamp panel 3. The threaded iron head 4 is installed at the lower end of the plastic base 1. The iron nail 5 is fixedly installed on the insulating disc 42 at the lower end of the threaded iron head 4. The lower end of the plastic base 1 is provided with a downwardly extending connecting column 1c. The lower end of the connecting column 1c abuts against the upper end of the insulating disc 42. The connecting column 1c is provided with a left slot 1a and a right slot 1b. The left slot 1a and the right slot 1b are separated by a partition plate 11. A metal contact plate 7 is fixedly installed in the right slot 1b at the right side of the partition plate 11. The metal contact plate 7 is electrically connected with the needle end of the iron nail 5. When the lamp panel 3 is installed in the plastic base 1, the left lead 32 on the lamp panel 3 extends downwardly into the left slot 1a, and the right lead 31 extends into the right slot 1b. The lower end of the connecting column 1c is slidably connected with a pressing block assembly connected with the insulating disc 42 in the left-right direction. When the threaded iron head 4 drives the insulating disc 42 to rotate, the pressing block assembly moves leftward to press the left lead 32 against the inner side of the threaded iron head 4 and to press the right lead 31 against the metal contact plate 7.

[0024] The pressing block assembly comprises a front sliding block 6a and a rear sliding block 6b. The bottom front side of the connecting column 1c is provided with a front sliding groove 12a in communication with the left slot 1a and the right slot 1b in the left-right direction. The bottom rear side of the connecting column 1c is provided with a rear sliding groove 12b in communication with the left slot 1a and the right slot 1b in the left-right direction. The front sliding block 6a is slidably connected in the front sliding groove 12a in the left-right direction. The rear sliding block 6b is slidably connected in the rear sliding groove 12b in the left-right direction. The left end of the front sliding block 6a and the rear sliding block 6b is provided with a left pressing block 61 located in the left slot 1a. The right end of the front sliding block 6a and the rear sliding block 6b is provided with a right pressing block 62 located in the right slot 1b. When the left lead 32 extends downwardly into the left slot 1a, the lower end of the left lead 32 is located between the left pressing block 61 and the inner side wall of the threaded iron head 4. When the right lead 31 extends into the right slot 1b, the lower end of the right lead 31 is located between the right pressing block 62 and the metal contact plate 7. When the pressing block assembly moves leftward, the left pressing block 61 presses the lower end of the left lead 32 against the inner side wall of the threaded iron head 4, and the right pressing block 62 presses the lower end of the right lead 31 against the metal contact plate 7. The upper end of the insulating disc 42 is provided with an avoiding cut groove 422. The lower end of the left pressing block 61 is provided with a protruding column 63 extending downwardly into the avoiding cut groove 422. The right side of the avoiding cut groove 422 is an arc-shaped side wall 421. When the insulating disc 42 rotates, the arc-shaped side wall 421 contacts the protruding column 63 and pushes the protruding column 63 to move leftward. When the protruding column 63 moves leftward, the left pressing block 61 and the right pressing block 62 move leftward synchronously.

[0025] Here by setting the slidable right pressing block 62 and the metal contact plate 7, so that in the installation, by controlling the right pressing block 62 to move left, the inner core of the right wire 31 is extruded on the metal contact plate 7, through the connection of the metal contact plate 7 and the iron nail 5, so that the right wire 31 completes the installation, and no shear occurs, thereby protecting the inner core of the right wire 31 from being damaged. By setting the slidable left pressing block 61, by moving the left pressing block 61 to the left, the inner core of the left wire 32 and the inner side wall of the threaded iron head 4 can be extruded together, so that the left wire 32 is connected in the threaded iron head 4 and cannot protrude, avoiding electric leakage and improving the safety of the bulb. By placing the inner core of the left wire 32 in the threaded iron head 4 for connection, the left wire 32 does not need to pass through the threaded iron head 4 when installing the left wire 32, making the installation of the left wire 32 more simple and improving the installation efficiency of the wire.

[0026] In the embodiment, the upper end of the partition plate 11 is provided with a left inclined surface 11c for guiding the left wire 32 to extend into the left slot 1a, and the upper end of the partition plate 11 is provided with a right inclined surface 11d for guiding the right wire 31 to extend into the right slot 1b. By providing the left inclined surface 11c and the right inclined surface 11d on the upper end of the partition plate 11 of the plastic base 1, when the lamp plate 3 is placed into the plastic base 1, the left wire 32 and the right wire 31 are automatically separated, which facilitates the separate fixing of the left wire 32 and the right wire 31, avoids interference between the left wire 32 and the right wire 31, reduces the installation difficulty, and improves the installation quality.

[0027] In the embodiment, the right side of the partition plate 11 is provided with a mounting groove 11e, and the metal contact plate 7 is fixedly arranged in the mounting groove 11e. The bottom of the partition plate 11 is provided with a mounting hole 11a coaxial with the needle portion of the iron nail 5, the metal contact plate 7 is provided with a connecting hole 7a coaxial with the mounting hole 11a, the lower end of the insulating disc 42 is provided with a clamping groove 423, and the bottom of the iron nail 5 is provided with a protrusion 52 for inserting into the clamping groove 423. When the iron nail 5 is installed at the bottom of the contact disc, the needle portion of the iron nail 5 passes through the mounting hole 11a and inserts into the connecting hole 7a, and the protrusion 52 extends into the clamping groove 423. At this time, the needle portion of the iron nail 5 inserted into the mounting hole 11a is in interference connection with the partition plate 11. When the clamping block is inserted into the clamping groove 423, the threaded iron head 4 can be effectively prevented from rotating.

[0028] In the embodiment, the plastic base 1 is provided with an annular groove 13, and when the threaded iron head 4 is fixedly installed on the plastic base 1, the upper end of the threaded iron head 4 is buckled to form a protruding edge (not shown in the figure) extending into the annular groove 13.

[0029] The LED bulb of the present application is assembled as follows: first, the lamp panel 3 is placed into the plastic base 1, and the left lead 32 on the lamp panel 3 is extended downward into the left slot 1a under the action of the left inclined surface 11c, and the right lead 31 is extended downward into the right slot 1b under the action of the right inclined surface 11d, the left lead 32 and the right lead 31 are separated on the left and right sides of the separation plate 11 and extended below the plastic base 1, then the front sliding block 6a is placed in the front sliding groove 12a, and the rear sliding block 6b is placed in the rear sliding groove 12b, so that the left pressing block 61 is arranged on the right side of the left lead 32, and the right pressing block 62 is arranged on the right side of the right lead 31 (as shown in Figure 2 The threaded iron head 4 is then sleeved at the bottom of the plastic base 1, the convex column 63 is placed in the avoiding cut groove 422 by rotating the threaded iron head 4, and then the upper end opening of the threaded iron head 4 and the plastic base 1 are inserted and connected in place, after the threaded iron head 4 is inserted and connected in place, the threaded iron head 4 is rotated relative to the plastic base 1, and then the insulating disc 42 is rotated, in the rotating process, the convex column 63 is moved by the arc-shaped side wall 421, and then the front sliding block 6a is slid leftward along the front sliding groove 12a, and the rear sliding block 6b is slid leftward along the rear sliding groove 12b, so that the left pressing block 61 and the right pressing block 62 move leftward at the same time, since the inner core of the left lead 32 is located between the inner side wall of the threaded iron head 4 and the left pressing block 61 at this time, when the left pressing block 61 and the inner side wall of the threaded iron head 4 touch, the inner core of the left lead 32 and the inner side wall of the threaded iron head 4 are in contact, the connection of the left lead 32 is completed, at the same time, the inner core of the right lead 31 is located between the metal contact plate 7 and the right pressing block 62, when the right pressing block 62 and the metal contact plate 7 touch, the inner core of the right lead 31 and the metal contact plate 7 are in contact, the connection of the right lead 31 is completed, and then the connection of the leads is completed.

[0030] After the connection of the leads is completed, the iron nail 5 is inserted into the hole on the insulating disc 42, and the needle part of the iron nail 5 is inserted into the mounting hole 11a at the lower end of the separation plate 11, so that the iron nail 5 and the separation plate 11 are fixedly connected in interference fit, and the needle part of the iron nail 5 is inserted into the connecting hole 7a of the metal contact plate 7, so that the iron nail 5 and the right lead 31 are connected, since the convex block 52 at the bottom of the iron nail 5 cooperates with the clamping groove 423 on the insulating disc 42, and the iron nail 5 cannot rotate due to the interference fit, the insulating disc 42 is also fixed and cannot rotate, so that the stable connection of the left lead 32 and the right lead 31 is ensured, then the upper end of the threaded iron head 4 is buckled in the annular groove 13 on the plastic base 1 by using a buckling machine, the threaded iron head 4 is fixedly installed on the plastic base 1, and the fixation of the threaded iron head 4 is completed.

[0031] After the completion of the installation of the threaded iron head 4, the lampshade 2 is buckled above the plastic bottom support 1, and is pushed into the groove on the plastic bottom support 1 by extrusion pushing. Since the lampshade 2 is made of plastic material, the lampshade 2 will not be damaged. When the lampshade 2 is installed in place, the lamp panel 3 cannot be moved due to the limiting of the lampshade 2, and is stably placed in the plastic bottom support 1, thereby completing the assembly of the LED lamp.

[0032] The above only describes the preferred embodiments of the present application, and it should be noted that those skilled in the art can make several improvements and refinements without departing from the technical principles of the present application, and these improvements and refinements should also be considered as the protection scope of the present application.

Claims

1. An LED bulb, comprising a lamp panel, a plastic base, a lampshade, a threaded iron head, an iron nail, the lamp panel being fixedly installed in the plastic base, the lampshade being fixedly installed at the upper end of the plastic base and covering the lamp panel, the threaded iron head being installed at the lower end of the plastic base, and the iron nail being fixedly installed on an insulating disc at the lower end of the threaded iron head; characterized in that, The lower end of the plastic base is provided with a downward extending connecting column, the lower end of the connecting column abuts against the upper end of the insulating disc, the connecting column is provided with a left slot and a right slot, the left slot and the right slot are separated by a partition plate; the right slot is fixedly provided with a metal contact plate on the right side of the partition plate, the metal contact plate is electrically connected with the needle end of the iron nail; when the lamp plate is installed in the plastic base, the left wire on the lamp plate extends into the left slot, the right wire extends into the right slot, the lower end of the connecting column is slidably connected with a pressing block assembly connected with the insulating disc in the left-right direction, when the insulating disc is rotated by the threaded iron head, the pressing block assembly moves left to press the left wire against the inner side of the threaded iron head, and at the same time, the right wire is pressed against the metal contact plate. The pressing block assembly comprises a front sliding block and a rear sliding block, the bottom of the connecting column is provided with a front sliding groove and a rear sliding groove in the left-right direction, the front sliding groove and the rear sliding groove are connected with the left slot and the right slot, the front sliding block is slidably connected in the front sliding groove in the left-right direction, the rear sliding block is slidably connected in the rear sliding groove in the left-right direction, the left end of the front sliding block and the rear sliding block is provided with a left pressing block in the left slot, and the right end of the front sliding block and the rear sliding block is provided with a right pressing block in the right slot.

2. The LED bulb of claim 1, wherein, When the left wire extends into the left slot, the lower end of the left wire is located between the left pressing block and the inner side wall of the threaded iron head, and when the right wire extends into the right slot, the lower end of the right wire is located between the right pressing block and the metal contact plate; when the pressing block assembly moves left, the left pressing block presses the lower end of the left wire against the inner side wall of the threaded iron head, and at the same time, the right pressing block presses the lower end of the right wire against the metal contact plate.

3. The LED bulb of claim 2, wherein, The upper end of the insulating disc is provided with an avoiding cut groove, the lower end of the left pressing block is provided with a protruding column extending into the avoiding cut groove, the right side of the avoiding cut groove is an arc-shaped side wall, when the insulating disc rotates, the arc-shaped side wall contacts with the protruding column and pushes the protruding column to move left, when the protruding column moves left, the left pressing block and the right pressing block move left synchronously.

4. The LED bulb of claim 1, wherein, The upper end of the partition plate is provided with a left inclined surface for guiding the left wire to extend into the left slot, and the upper end of the partition plate is provided with a right inclined surface for guiding the right wire to extend into the right slot.

5. The LED bulb of claim 1, wherein, The right side of the partition plate is provided with a mounting groove, and the metal contact plate is fixedly arranged in the mounting groove.

6. The LED bulb of claim 5, wherein, The bottom of the partition plate is provided with a mounting hole coaxial with the needle part of the iron nail, the metal contact plate is provided with a connecting hole coaxial with the mounting hole, the lower end of the insulating disc is provided with a clamping groove, and the bottom of the iron nail is provided with a protruding block for inserting into the clamping groove; when the iron nail is installed at the bottom of the contact disc, the needle part of the iron nail passes through the mounting hole and inserts into the connecting hole, and the protruding block extends into the clamping groove, at this time, the needle part of the iron nail inserted into the mounting hole is interference connected with the partition plate.

7. The LED bulb of claim 1, wherein, The plastic base is provided with an annular groove, when the threaded iron head is fixedly installed on the plastic base, the upper end of the threaded iron head is buckled to form a protruding edge extending into the annular groove.

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