TWM549305U - Lamp adjusting mechanism with backlight module - Google Patents

Description

Backlight module luminaire adjustment structure

This creation is about a lighting device; more specifically, it relates to a backlight module lamp adjustment structure with a strong lamp holder positioning effect.

Lighting fixtures have been used in a variety of applications. For example, in interior design landscaping, indoor lighting, advertising billboards, etc., the application of lighting fixtures can be seen. Wherein, a projection lamp can rotate and adjust an angle to project a desired light at a preset angle or distance.

Please refer to FIG. 1 and FIG. 2 for the structure of the conventional projection lamp 100. FIG. 1 is a schematic diagram showing the operation of the conventional projection lamp 100; and FIG. 2 is a schematic diagram showing the failure of the positioning lamp 100 in the first diagram. The conventional projector lamp 100 includes a base 110 that can adjust the height up and down, the left and right rotation, and the adjustment of the deflection angle.

As shown in Fig. 1, after the base 110 is adjusted in height, the base 110 is positioned to be fixed at a specific position to fix the projected light. When the height is adjusted, the positioning mode is achieved by combining the sawtooth groove 130 on the two side slide rails 120 with the elastic steel balls 140 on both sides of the lamp cap 110 to achieve the positioning effect. However, the elastic steel ball 140 has a circular arc surface, which is only adjacent to the sawtooth groove 130. There are two or four points of contact; in addition, if the elastomer in the elastic steel ball 140 begins to fatigue, the elastic steel ball 140 steel ball cannot be accurately embedded in the sawtooth groove 130. As shown in Fig. 2, the elastic steel balls 140 on both sides cannot be stably located on the same horizontal surface, resulting in skew imbalance, causing the lamp cap 110 to be shaken, loosened, or even stuck to the wires. In addition, when the conventional lamp cap 110 rotates left and right, it only depends on the shaft rotation mode, and there is no positioning point, so that the rotation shaft is easily damaged, resulting in a short service life.

Accordingly, there is still a need to develop a projection lamp 100 that allows the lamp head 110 to be stably positioned regardless of movement or rotation.

This creation provides a projector that can be stably positioned. Through the mutual engagement of the first tooth portion of the positioning member and the second tooth portion of the positioning groove, the strong positioning effect of the lamp holder during movement, rotation or deflection can be provided, and the service life is long.

In one embodiment, the present invention provides a backlight module lamp adjustment structure including a lamp body, a lamp holder, and a positioning member. An accommodating space is formed in the lamp body, and a positioning groove is formed on the lamp body. The lamp holder is movably accommodated in the accommodating space. The socket can be moved in a direction perpendicular to the axis, rotated about a vertical axis, or deflected at an angle to the vertical axis. The positioning member is coupled to the positioning groove, and positions the lamp holder when the lamp holder moves, rotates or deflects to a predetermined distance or a predetermined angle.

In the above-mentioned backlight module lamp adjusting structure, at least one lighting unit may be disposed in the lamp socket. The lighting unit can be a light tube, a light bulb, an organic light emitting diode or an inorganic light emitting diode.

In the adjustment structure of the backlight module, each of the two sides of the positioning member includes a first tooth portion, and the positioning groove includes a plurality of second tooth portions corresponding to the first tooth portions, and each of the first tooth portions meshes with each of the second teeth. unit. Each of the first tooth portions includes at least two inclined surfaces having different inclination directions, and each of the second tooth portions includes at least two inclined surfaces having different inclination directions, and the two inclined surfaces of the first tooth portions are correspondingly engaged with the two inclined surfaces of the second tooth portions. In addition, the positioning member can be made of an elastic material.

In another embodiment, the present invention provides a backlight module lamp adjustment structure including a lamp body, a shaft body, a lamp holder, and a positioning member. An accommodating space is formed in the lamp body, and a positioning groove is formed on the lamp body. The shaft body is telescopically located in the accommodating space. The lamp holder is pivotally connected to the shaft body. The shaft body drives the lamp holder to move the lamp holder in a direction perpendicular to the vertical axis, or to rotate about a vertical axis or to be inclined at an angle to the vertical axis. The positioning member is coupled to the positioning groove, and positions the lamp holder when the lamp holder moves, rotates or deflects to a predetermined distance or a predetermined angle.

In the above-mentioned backlight module lamp adjusting structure, the lamp holder is pivotally connected to one end of the shaft body through a universal joint shaft.

In the above adjustment structure of the backlight module, the two lamp holders and the two-axis body may be included. Each of the shafts drives the lamp holders so that the two lamp holders move in different directions in the direction of the vertical axis, rotate at different angles around the vertical axis, or deflect at different angles from the vertical axis.

In the above-mentioned backlight module lamp adjusting structure, a ratchet wheel can be disposed in the lamp body. The ratchet links the shaft so that the base rotates stepwise about the vertical axis and positions the socket.

100‧‧‧projection lights

200‧‧‧Backlight module luminaire adjustment structure

110‧‧‧ lamp holder

120‧‧‧rails

130‧‧‧Sawtooth slot

140‧‧‧ resilient steel ball

210‧‧‧Light body

220‧‧‧Axis body

230‧‧‧ lamp holder

240‧‧‧ Positioning parts

211‧‧‧ accommodating space

212‧‧‧ positioning slot

X1‧‧‧ vertical axis

310‧‧‧First tooth

320‧‧‧second tooth

311, 312, 321, 322‧‧ ‧ bevel

330‧‧‧ universal shaft

340‧‧‧ratchet

1 is a schematic diagram showing the operation of a conventional projection lamp; FIG. 2 is a schematic diagram showing the failure of the transmission lamp of FIG. 1 in the positioning function; FIG. 3 is a diagram showing the backlight module lamp according to an embodiment of the present invention; A schematic diagram of one of the actuation modes of the adjustment structure; FIG. 4 is a schematic diagram showing the adjustment structure of the backlight module of FIG. 3 in another actuation mode; and FIG. 5 is a diagram showing the adjustment structure of the backlight module of the third diagram. FIG. 6 is a schematic view showing a part of components of the positioning module and the positioning groove in the adjustment structure of the backlight module of FIG. 3; and FIG. 7 is a partial enlarged view of FIG. .

In the following description, specific embodiments of the present invention will be described with reference to the accompanying drawings. However, certain details should be omitted for those skilled in the art to avoid unnecessarily obscuring the main technical features of the present invention. In addition, several overlapping elements may be labeled with the same number.

Please refer to Figures 3 to 5 together. 3 is a schematic diagram showing an operation mode of a backlight module lamp adjusting structure 200 according to an embodiment of the present invention; and FIG. 4 is a schematic view showing another mode of operation of the backlight module lamp adjusting structure 200 of FIG. 3; FIG. 5 is a side view showing the backlight module lamp adjusting structure 200 of FIG. 3 in another operation mode.

Firstly, it is clarified that the creation system belongs to an implementation form of a projection lamp, which uses, for example, a backlight module including a light-emitting diode as a lighting unit as a projection light source, and has a flexible and powerful positioning adjustment function, so it is called. The backlight module lamp adjustment structure 200 includes a lamp body 210, a shaft body 220, a lamp holder 230, and a positioning member 240. An accommodating space 211 is formed in the lamp body 210, and a positioning groove 212 is formed on the lamp body 210. A plurality of lighting units (not shown) are disposed in the socket 230. The lighting unit can be a lamp, a bulb, an organic light emitting diode, an inorganic light emitting diode or the like that can provide illumination, which will not be described in detail.

The lamp holder 230 is for projecting light to a predetermined angle or a predetermined distance. In order to enable the angle and distance of the light projected by the socket 230 to be freely selected, in one embodiment, it is actuated by the shaft body 220. The shaft body 220 is telescopically located in the accommodating space 211. In addition, one end of the shaft body 220 is pivotally connected to the lamp holder 230. In a possible embodiment, as shown in FIG. 5, one end of the shaft body 220 is pivotally connected to the lamp holder 230 through a universal shaft 330. Therefore, in FIG. 3, the lamp holder 230 is moved through the shaft body 220 in a direction perpendicular to the vertical axis X1. In Fig. 4, when the lamp holder 230 is driven away from the lamp body 210, the lamp holder 230 can be rotated on a plane about the vertical axis X1. In Fig. 5, it can be shown that the lamp holder 230 can be angularly deflected on the other plane from the vertical axis X1 in addition to being rotatable in a plane about the vertical axis X1. Through the above-mentioned figures 3 to 5, it can be seen that the lamp holder 230 of the present invention can accurately project the light of the lamp holder 230 to the position to be projected by adjusting the height, the deflection angle and the rotation angle of the shaft body 220. .

It should be noted that the above vertical axis X1 is a virtual one in space. The shaft is used to describe the complicated operation mode of the lamp holder 230, and the shaft body 220 is a solid member for interlocking the lamp holder 230.

It is worth mentioning that if a plurality of shaft bodies 220 are used simultaneously to fit a plurality of lamp holders 230, multi-angle light projection is possible. For example, in Figures 3 and 4, the two sockets 230 can each be moved by different distances in the direction of the vertical axis X1, rotated by different angles about the vertical axis X1 or, as in Fig. 5, by different angles by the vertical axis X1. The use of a larger number of lamp holders 230 can create more complex changes.

Next, the positioning function of the lamp holder 230 in this creation is described.

Please refer to Figure 6 and Figure 7 together. FIG. 6 is a partial schematic view showing a part of the assembly of the positioning member 240 and the positioning groove 212 in the backlight module adjusting structure 200 of FIG. 3; and FIG. 7 is a partial enlarged view of FIG. The positioning member 240 can be coupled to the positioning groove 212 to position the lamp holder 230 when the lamp holder 230 moves, rotates or deflects to a predetermined distance or a predetermined angle. In detail, as shown in FIG. 6 , the positioning member 240 includes a first tooth portion 310 on each side thereof, and the positioning groove 212 includes a plurality of second tooth portions 320 corresponding to the first tooth portions 310 . Each of the first tooth portions 310 can be engaged with each of the second tooth portions 320 to form an effect of fixing the socket 230. In more detail, in FIG. 7 , each of the first tooth portions 310 includes at least two inclined surfaces 311 and 312 having different inclination directions, and each of the second tooth portions 320 also includes at least two inclined surfaces 321 and 322 having different inclination directions. . The slopes 311, 312 can be correspondingly engaged with the slopes 321, 322. In other words, the inclined surfaces 311, 312 and 321 and 322 of the different oblique directions are brought into contact with each other at least four sides to form a tooth-shaped meshing effect, which contributes to strengthening the position of the fixed lamp holder 230. By the above-mentioned multi-faceted teeth meshing effect Therefore, it is conventional to solve the problem of instability caused by the arc-shaped surface of the steel ball contacting the slide rail to fix the lamp holder 230. Furthermore, a longer service life can be obtained. In addition, the positioning member 240 is made of an elastic material, and can be stabilized by the elastic force.

It is also worth mentioning that the lamp holder 230 can be positioned through the positioning member 240 when moving, and a ratchet 340 can be disposed in the lamp body as shown in FIG. The ratchet 340 interlocks the shaft 220 such that the socket 230 can be rotated stepwise about the vertical axis X1 and position the socket 230. Thereby, the lamp holder 230 can generate a paragraph feeling when rotating, so that the user can clearly know and control the rotation angle, and can protect the shaft body 220, so that the shaft body 220 is not damaged by excessive friction.

Although the present invention has been disclosed in the above embodiments, it is not intended to limit the present invention, and any person skilled in the art can make various changes and refinements without departing from the spirit and scope of the present invention. The scope is subject to the definition of the scope of the patent application attached.

200‧‧‧Backlight module luminaire adjustment structure

210‧‧‧Light body

230‧‧‧ lamp holder

240‧‧‧ Positioning parts

211‧‧‧ accommodating space

212‧‧‧ positioning slot

X1‧‧‧ vertical axis

Claims (9)

A backlight module illuminating structure comprises: a lamp body, wherein an accommodating space is formed therein, and a positioning groove is formed on the lamp body; and a lamp holder is movably received in the accommodating space; The lamp holder is moved in the direction of the vertical axis, rotated about the vertical axis or at an angle to the vertical axis; and a positioning member coupled to the positioning groove, the positioning member moves, rotates or deflects on the lamp holder Position the lamp holder to a preset distance or a preset angle. The backlight module illuminating structure according to the first aspect of the invention, wherein the lamp holder is provided with at least one lighting unit, the lighting unit is a light tube, a light bulb, an organic light emitting diode or an inorganic light emitting diode Polar body. The backlight module illuminating structure of claim 1, wherein each of the two sides of the positioning member includes a first tooth portion, and the positioning groove includes a plurality of second teeth corresponding to the first tooth portions. And each of the first tooth portions meshes with each of the second tooth portions. The backlight module illuminating structure according to claim 3, wherein each of the first tooth portions includes at least two inclined surfaces having different inclination directions, and each of the second tooth portions includes at least two inclined surfaces having different inclination directions. The two inclined faces of each of the first tooth portions are correspondingly engaged with the two of the second tooth portions Beveled. The backlight module illuminating structure according to claim 1, wherein the positioning member is made of an elastic material. A backlight module illuminating structure comprises: a lamp body, wherein an accommodating space is formed therein, and a positioning groove is formed on the lamp body; a shaft body is telescopically located in the accommodating space; The shaft body is pivoted to the shaft body, the shaft body drives the lamp holder to move in a direction perpendicular to the vertical axis, rotate about the vertical axis or deflect an angle with the vertical axis; and a positioning member coupled to the The positioning member positions the lamp holder when the lamp holder moves, rotates or deflects to a predetermined distance or a predetermined angle. The backlight module lamp adjusting structure according to claim 6, wherein the lamp holder is pivotally connected to one end of the shaft body through a universal joint shaft. The backlight module illuminating structure according to claim 6, comprising two lamp holders and two shaft bodies, each of the shaft bodies driving each of the lamp holders, so that the lamp holders are moved in the vertical axis direction A different distance, rotated about the vertical axis by a different angle or deflected at an angle different from the vertical axis. The backlight module illuminating structure according to claim 6, wherein a ratchet is disposed in the lamp body, and the ratchet rotates the shaft body to rotate the lamp holder stepwise around the vertical axis and position the lamp holder. .