CN222142873U - Lamp panel structure and bulb using same - Google Patents

Abstract

The utility model discloses a lamp board structure and a bulb using the lamp board structure. The solution cleverly arranges a light-emitting module on a first surface of a circuit board, and arranges first and second conductive members that do not contact each other on a second surface opposite to the first surface, so that the first and second conductive members are respectively connected to the first and second ends of the light-emitting module for power supply. The implementation of this structural form is reliable and the structure is compact. The solution can adjust the creepage distance of the circuit board connecting the mains neutral and live wires to the light-emitting module by adjusting the specifications of the electrical insulation area arranged on the second surface of the circuit board; in addition, the conductive column can be directly arranged on the circuit board as the first conductive member, so that when the circuit board is installed in the bulb, the installation efficiency can be improved; in addition, the solution adopts a connector formed of elastic insulating material as a matching member between the circuit board and the lamp holder housing, which can greatly improve the waterproof ability of the lamp holder and improve the safety and reliability of the bulb.

Description

Lamp panel structure and bulb using same

Technical Field

The utility model relates to the technical field of bulb circuit boards and bulb structures, in particular to a lamp panel structure and a bulb using the lamp panel structure.

Background

The bulb is used as a common device for daily illumination and background rendering, the bulb is widely applied to various scenes, most of the structures of the LED bulbs at present comprise a lampshade, a circuit board, a light emitting module, a lamp cap shell and a conductive post (for example, china patent CN 214198212U), and due to the structural characteristics of the lamp cap shell, connecting wires or metal pins can be LED out from the circuit board of most of the bulbs at present so as to be used for connecting the circuit board to a zero live wire of a power supply, wherein the zero line is mostly in contact with the lamp cap shell made of conductive materials, the live wire is in contact with the conductive post, and the structure is further fixedly connected with the lampshade when the bulb is packaged, in the process, the connecting conditions or the position reliability of the connecting wires and the lamp cap shell and the conductive post are influenced to a certain extent, so that the connecting wires on the circuit board of different bulbs are different from the lamp cap shell and the conductive post, the yield and the service life of the bulb in the later use can be influenced to the certain extent, and meanwhile, the efficiency and the mounting efficiency of the bulb can be influenced and the structure of the bulb are improved, and the structure of the bulb is very good, and the structure is optimized, and the structure of the bulb is well is assembled.

Disclosure of Invention

In view of the above, the present utility model is directed to a lamp panel structure and a bulb using the same, which have simple structure, reliable implementation and high assembly efficiency.

In order to achieve the technical purpose, the utility model adopts the following technical scheme:

The utility model provides a lamp plate structure, its includes circuit board, lighting module, first electrically conductive piece and second electrically conductive piece, the circuit board has relative first surface and second surface, lighting module sets up on first surface, first electrically conductive piece and second electrically conductive piece all set up on the second surface of circuit board and each other contactless, lighting module has first end and the second end that is used for switching in the power supply, first end with first electrically conductive piece electricity is connected, the second end with second electrically conductive piece electricity is connected.

As one of possible embodiments of the first conductive element, further, in this solution, the first conductive element includes a conductive post screwed or riveted on a middle portion of the second surface of the circuit board, and the conductive post is electrically connected to the first end of the light emitting module.

As a second possible implementation manner of the first conductive element, the first conductive element in this embodiment further includes a first conductive layer disposed on a middle portion of the second surface, and the first conductive layer is electrically connected to the first end of the light emitting module.

As one of possible embodiments of the second conductive element, it is preferable that the second conductive element includes a second conductive layer disposed on the second surface, and the second conductive layer is electrically connected to the second end of the light emitting module.

As a preferred implementation choice, preferably, the second conductive layer in this embodiment is an annular closed structure or a non-annular closed structure;

When the second conductive layer is of an annular closed structure, the second conductive layer surrounds the first conductive piece, and an electric insulation area is arranged between the first conductive piece and the second conductive layer, wherein the outer edge of the second conductive layer extends to the outer edge of the circuit board or an electric insulation area is arranged between the outer edge of the second conductive layer and the outer edge of the circuit board;

When the second conductive layer is of a non-annular closed structure, the rest areas of the second surface except the arrangement areas of the first conductive layer and the second conductive layer are electric insulation areas, and the part, close to the outer edge of the circuit board, of the second conductive layer extends outwards to the outer edge of the circuit board or a gap is reserved between the part and the outer edge of the circuit board.

As a second possible implementation manner of the second conductive member, preferably, the second conductive member includes a connection wire, one end of the connection wire is divided into at least one strand of conductive wires, an end of at least one strand of conductive wires respectively passes through the circuit board and extends to the second surface of the circuit board, the circuit board is correspondingly provided with an avoidance through hole for the conductive wires to pass through, and the other end of the connection wire is electrically connected with the second end of the optical module.

As a third possible embodiment of the second conductive member, on the basis of the foregoing, it is preferable that the second conductive member further includes:

The conductive sheets are arranged on the second surface and are connected with the corresponding conductive wires in a one-to-one correspondence mode.

As a fourth possible implementation manner of the second conductive element, the second conductive element further includes:

The number of the conductive elastic pieces is in one-to-one correspondence with that of the conductive wires, one end of each conductive elastic piece is arranged at the edge of the second surface of the circuit board and is connected with the corresponding conductive wire, and the other end of each conductive elastic piece extends out of the circuit board.

As a preferred implementation choice, preferably, the light-emitting module is powered by mains supply, the first conductive piece is used for being connected with a live wire of the mains supply, the second conductive piece is used for being connected with a zero wire of the mains supply, and the light-emitting module is an LED light-emitting module.

Based on the above, the present utility model further provides a bulb, which includes the above-mentioned lamp panel structure, and the bulb further includes:

The lamp holder shell is of a cylindrical shell structure with two open ends, is made of conductive materials and is used for being connected with a lamp holder, and one end of the lamp holder shell is of a necking structure;

The connecting piece is made of insulating materials, is arranged on the necking structure of the lamp cap shell, and is provided with through holes penetrating through two ends of the connecting piece at the middle part;

The conducting ring is a conducting piece, is arranged on the second surface of the circuit board and is attached to the second conducting piece, and at least one extending piece extending outwards is arranged on the periphery side of the conducting ring at intervals and is used for being attached to the inner wall of the cylindrical structure of the lamp cap shell;

The circuit board of the lamp panel structure is arranged in the cylindrical structure of the lamp cap shell, the end part of the first conductive piece on the circuit board, which is far away from the circuit board, sequentially passes through the through hole on the connecting piece and the necking structure of the lamp cap shell, and is exposed out of the lamp cap shell, and an insulation interval is formed between the first conductive piece and the lamp cap shell, and the insulation interval is used for connecting a live wire of mains supply;

The lamp shade is a hollow structure with one open end, and the open end of the lamp shade is connected with the lamp cap shell.

As a preferred implementation choice, preferably, the connecting piece is made of elastic insulating materials, one end face of the connecting piece is attached to the second surface of the circuit board and covers the conducting ring partially, a protruding portion is arranged on the other end face of the connecting piece, corresponding to the necking structure of the lamp cap shell, the protruding portion penetrates out of the necking structure of the lamp cap shell, and the through hole penetrates through the protruding portion.

As a preferred implementation choice, preferably, the inner wall of the lamp holder shell is provided with an internal thread structure, the open end of the lamp shade is provided with an external thread structure corresponding to the internal thread structure, the open end of the lamp shade is fixedly connected in the lamp holder shell through the external thread structure, and the circuit board of the lamp plate structure is restrained and fixed between the necking structure of the lamp holder shell and the open end of the lamp shade.

Compared with the prior art, the technical scheme has the beneficial effects that the technical scheme has the advantages that the luminous module is arranged on the first surface of the circuit board, the first conductive piece and the second conductive piece which are not contacted with each other are arranged on the second surface opposite to the first surface, the first conductive piece and the second conductive piece are respectively connected with the first end and the second end of the luminous module which are connected with power supply, the structure is reliable and compact, and the creepage distance of the circuit board for connecting the commercial power and the live wire to the luminous module can be adjusted by adjusting the specification of the electric insulation area arranged on the second surface of the circuit board; for example, the width of the electric insulation area between the first conductive piece and the second conductive piece is adjusted to adjust the electric insulation interval between the first conductive piece and the second conductive piece, the width of the electric insulation area between the second conductive piece and the edge of the circuit board is adjusted to adjust the creepage distance between the second conductive piece and the edge of the circuit board, compared with the traditional scheme, the structure form of the scheme is more compact and has high integration level, and when the bulb assembly is assembled, more convenient, and the bulb of completion of assembling inserts the light emitting module with the live wire of commercial power through first electrically conductive piece, conducting post when inserting the commercial power on installing the lamp stand of lamps and lanterns, lamp holder casing, second electrically conductive piece insert the light emitting module with the zero line of commercial power, realize the reliable work of bulb, in addition, this scheme is because each structure on the circuit board is relative fixed structure, consequently, it also has better production installation effectiveness and product yield.

In addition, the connecting piece formed by elastic insulating materials is adopted as a matching piece between the circuit board and the lamp cap shell, so that the waterproof capacity of the lamp cap can be greatly improved through the connecting piece, and the use safety and reliability of the lamp bulb are improved.

Drawings

In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic view of one of the embodiments of the lamp panel structure of the embodiment 1;

FIG. 2 is a schematic view of a second embodiment of the lamp structure according to embodiment 1;

Fig. 3 is a schematic illustration of the connection principle between the lamp panel structure of embodiment 1 and external power supply;

FIG. 4 is a schematic view of a second embodiment of the lamp structure according to the embodiment 1;

FIG. 5 is a schematic view of a third embodiment of the lamp structure according to embodiment 1;

FIG. 6 is a schematic cross-sectional view of the lamp panel structure of embodiment 1 installed in a lamp housing when applied to a lamp, mainly illustrating the installation of the second lamp panel structure of embodiment 1;

FIG. 7 is a schematic exploded view of the mounting structure of FIG. 6;

FIG. 8 is a schematic cross-sectional view of the lamp panel structure of embodiment 1 applied to a lamp bulb;

FIG. 9 is a schematic view of one of the embodiments of the lamp panel structure according to embodiment 2;

FIG. 10 is a schematic side view of one embodiment of the lamp panel structure of embodiment 2

FIG. 11 is a schematic view of a second embodiment of the structure of the lamp panel according to embodiment 2;

FIG. 12 is a schematic view of a third embodiment of the structure of the lamp panel according to embodiment 2;

FIG. 13 is a schematic three-dimensional view of the lamp panel structure according to embodiment 2 when applied to a lamp bulb;

FIG. 14 is a schematic cross-sectional view of the lamp panel structure of embodiment 2 applied to a lamp bulb;

FIG. 15 is a schematic explosion diagram of the lamp panel structure of embodiment 2 applied to a lamp, wherein it mainly shows the installation of the second lamp panel structure of embodiment 2;

FIG. 16 is a schematic cross-sectional view showing the lamp panel structure of embodiment 2 mated with the inner lens, the connecting member and the conductive post when the lamp panel structure is applied to a lamp bulb;

FIG. 17 is a schematic view of one of the embodiments of the lamp panel structure according to embodiment 3;

FIG. 18 is a schematic sectional view of one of the lamp panel structures of embodiment 3;

FIG. 19 is a schematic sectional view of a second embodiment of the lamp panel structure of embodiment 3;

FIG. 20 is a schematic view of one of the embodiments of the lamp panel structure of the embodiment 4;

FIG. 21 is a schematic sectional view of one of the lamp panel structure implementations of embodiment 4;

FIG. 22 is a schematic diagram showing the mounting of the lamp panel structure of embodiment 4 in a lamp;

FIG. 23 is a schematic sectional view of a second embodiment of the lamp structure according to embodiment 4.

Detailed Description

The utility model is described in further detail below with reference to the drawings and examples. It is specifically noted that the following examples are only for illustrating the present utility model, but do not limit the scope of the present utility model. Likewise, the following examples are only some, but not all, of the examples of the present utility model, and all other examples, which a person of ordinary skill in the art would obtain without making any inventive effort, are within the scope of the present utility model.

Example 1

As shown in connection with one of fig. 1 to 3, the embodiment of the lamp panel structure 1 includes a circuit board 11, a light emitting module 12, a first conductive member 13 and a second conductive member 14, the circuit board 11 has a first surface 111 and a second surface 112 opposite to each other, the light emitting module 12 is disposed on the first surface 111, the first conductive member 13 and the second conductive member 14 are disposed on the second surface 112 of the circuit board 11 and are not in contact with each other, the light emitting module 12 has a first end 121 and a second end 122 for accessing power supply, the first end 121 is electrically connected with the first conductive member 13, and the second end 122 is electrically connected with the second conductive member 14.

As one of possible implementations of the first conductive element 13 of the lamp structure 1 according to the embodiment, further, the first conductive element 13 according to the embodiment includes a conductive post 131 screwed or riveted to a middle portion of the second surface 112 of the circuit board 11, and the conductive post 131 is electrically connected to the first end 121 of the light emitting module 12.

On the basis, the second conductive element 14 comprises a second conductive layer 141 arranged on the second surface 112, and the second conductive layer 141 is electrically connected with the second end 122 of the light emitting module 12.

In this embodiment, the first end 121 and the second end 122 of the light emitting module 12 may be electrically connected to the conductive post 131 and the second conductive layer 131 respectively by providing conductive through holes on the circuit board 11, or alternatively, may be electrically connected to the conductive post 131 and the second conductive layer 131 by providing through holes on the circuit board 11 and then passing through the through holes by means of common wires, printed wires, etc., where the conductive through holes or the through holes pass through the printed wires and the common wires are in a common structural arrangement form of the circuit board, and details of the conductive through holes or the through holes and the common wires will not be described herein.

In this embodiment, the second conductive layer 131 is in a ring structure or other shapes of non-ring structure, focusing on fig. 1, when the second conductive layer 131 is in a ring structure, it surrounds the conductive posts 131 of the first conductive member 13, and at the same time, an insulation space is formed between the second conductive layer 131 and the conductive posts 131 of the first conductive member 13, that is, a portion of the second surface 112 between the second conductive layer 131 and the conductive posts 131 of the first conductive member 13 is an electrically insulating region, and the ring structure of the second conductive layer 131 may extend to the edge of the second surface 112 of the circuit board 11.

However, the implementation form of the second conductive layer 131 in this embodiment is not limited thereto, and as shown in fig. 4, the second conductive layer 131 with a ring structure may be spaced apart from the edge of the second surface 112 of the circuit board 11, that is, the area of the second surface 112 between the outer edge of the second conductive layer 131 and the outer edge of the circuit board 11 is set as an electrically insulating area.

In addition, when the second conductive layer 131 of the second conductive member 13 is in a non-annular structure, it may have a fan-shaped structure, or may have a plurality of second conductive layers 131, for example, as shown in fig. 5, the plurality of second conductive layers 131 are disposed in an annular array on the periphery of the conductive post 131 of the first conductive member 13.

In this embodiment, the conductive post 131 is used as a component of the first conductive member 13 and is directly disposed on the circuit board 11, so that when the lamp panel structure 1 is installed in the lamp bulb, the conductive post 131 (or called conductive nail) does not need to be separately installed.

For a better explanation of the application of the lamp panel structure 1 of the embodiment in a lamp bulb, the construction described in connection with one of fig. 1 to 5 is further combined with one of fig. 6 to 8, which shows an implementation of the lamp panel structure 1 in a lamp bulb. Since three embodiments (fig. 1, 4 and 5) of the second conductive member 14 as the second conductive layer are mentioned in this embodiment, and the corresponding lamp panel structure 1 is not greatly different from the corresponding components when being used in a lamp bulb, the following description mainly uses the second conductive layer 141 shown in fig. 4 as a schematic structure.

As shown in connection with one of fig. 6 to 8, the present embodiment further provides an implementation of the lamp panel structure 1 in a lamp, where the lamp includes the lamp panel structure 1, the lamp further includes:

The lamp holder shell 2 is of a cylindrical shell structure with two open ends, the lamp holder shell 2 is made of conductive materials and is used for being connected with a lamp holder (namely, the lamp holder matched with a bulb), and one end of the lamp holder shell 2 is provided with a necking structure 21;

The connecting piece 3 is made of insulating materials, the connecting piece 3 is arranged on the necking structure 21 of the lamp cap shell 2, and a through hole 31 penetrating through two ends of the connecting piece is formed in the middle of the connecting piece;

The conducting ring 4 is a conducting piece, and is disposed on the second surface of the circuit board 11 and is attached to the second conducting layer 141 of the second conducting piece 14, at least one extending piece 41 extending outwards is disposed at intervals on the outer periphery side of the conducting ring 4, the extending piece 41 is used for being attached to the inner wall of the tubular structure of the lamp cap housing 2, and the conducting ring 4 is spaced apart from the first conducting piece 13 in an insulating manner.

The circuit board 11 of the lamp panel structure 1 is arranged in a cylindrical structure of the lamp cap shell 2, the end part of the conductive column 131 of the first conductive piece 13 on the circuit board 11, which is far away from the circuit board 11, sequentially passes through the through hole 31 on the connecting piece 3 and the necking structure 21 of the lamp cap shell 2, and is exposed out of the lamp cap shell 2, and an insulation interval is formed between the conductive column 131 of the first conductive piece 13 and the lamp cap shell 2 and is used for connecting a live wire of mains supply;

The lamp housing 5 is a hollow structure with one open end, and the open end of the lamp housing is connected with the lamp cap shell 2.

In order to improve the waterproof capability of the lamp cap housing 2 after the lamp cap housing 1 is assembled, and avoid that external water vapor enters into the bulb through the installation gap between the connecting piece 3 and the lamp cap housing 1, as a preferred implementation choice, preferably, the connecting piece 3 is made of elastic insulation material, one end surface of the connecting piece 3 is attached to the second surface 112 of the circuit board 11 and covers the conductive ring 4 partially, the other end surface of the connecting piece 3 is provided with a protruding portion 32 corresponding to the necking structure 21 of the lamp cap housing 2, the protruding portion 32 partially penetrates out of the necking structure 21 of the lamp cap housing 2, and the through hole 31 penetrates through the protruding portion 32.

And on the cooperation implementation structure of lamp shade 5 and lamp holder casing 2, this scheme the inner wall of lamp holder casing 2 is equipped with the internal thread structure, the open end of lamp shade 5 be equipped with the external thread structure that the internal thread structure corresponds, the open end of lamp shade 5 passes through external thread structure screw thread fixed connection in lamp holder casing 2, and will the circuit board 11 constraint of lamp plate structure 1 is fixed between the throat structure 21 of lamp holder casing 2 and the open end of lamp shade 5 (as shown in fig. 8).

In this embodiment, in order to improve the uniformity of light emission of the bulb, a lens 6 may be further installed in the cover 5 of the bulb.

Example 2

As shown in fig. 9 and 12, the lamp panel structure 1 of the present embodiment is substantially the same as that of embodiment 1, except that the implementation forms or structures of the first conductive member 13 and the second conductive member 14 of the present embodiment are different from that of embodiment 1.

Also, the lamp panel structure 1 of the embodiment includes a circuit board 11, a light emitting module 12, a first conductive member 13 and a second conductive member 14, where the circuit board 11 has a first surface 111 and a second surface 112 opposite to each other, the light emitting module 12 is disposed on the first surface 111, and the first conductive member 13 and the second conductive member 14 are disposed on the second surface 112 of the circuit board 11 and are not in contact with each other.

In this embodiment, the light emitting module 12 is an LED light emitting module, and as shown in fig. 3, in the power supply connection manner of the light emitting module 12, this embodiment is the same as that of embodiment 1, that is, the light emitting module 12 is powered by the mains supply, and in the same time, the light emitting module 12 in this embodiment is electrically connected to the first conductive member 13 and the second conductive member 14, that is, the light emitting module 12 has a first end 121 and a second end 122 for accessing power supply, where the first end 121 is connected to the first conductive member 13, and the second end 122 is connected to the second conductive member 14.

Referring to fig. 9 for emphasis, as one example of the implementation of the first conductive element 13 and the second conductive element 14 in this embodiment, the first conductive element 13 includes a first conductive layer 132 disposed in the middle of the second surface 112, and the second conductive element 14 includes a second conductive layer 142 disposed on the second surface 112 and surrounding the first conductive layer 132, where the first conductive layer 132 is used for connecting to a live wire L of a mains supply, and the second conductive layer 141 is used for connecting to a neutral wire N of the mains supply.

In addition, in the embodiment, the first conductive layer 132 may be connected to the first end 121 of the light emitting module 12 through a wire, the second conductive layer 142 may be connected to the second end 122 of the light emitting module 12 through a wire, and the wire may be a printed wire printed on the circuit board 11 or a common wire not printed on the circuit board 11, and when the wire is a common wire, the circuit board 11 may be provided with a through hole or a conductive hole for the wire to pass through the circuit board 11 and connect to the first end 121 and the second end 122 of the light emitting module 12 corresponding to the first conductive layer 131 and the second conductive layer 141, and the circuit board 11 may also be electrically connected to the first conductive layer 132 and the second conductive layer 142 through a conductive hole passing through the circuit board 11 in a common electrical connection layout form of the circuit board.

In the solution shown in fig. 9, the remaining area on the second surface 112 of the circuit board 11 except the positions where the first conductive layer 132 and the second conductive layer 142 are disposed is an electrically insulating area, so as to avoid electrical connection between the first conductive layer 132 and the second conductive layer 142, and thus the light emitting module is electrically shorted. Wherein the outer edge of the second conductive layer 141 extends to the outer edge of the circuit board 11.

In order to improve the safety of the lamp panel, another implementation structure of the embodiment is shown in fig. 10, and the electrical safety of the circuit board is realized by adjusting the creepage distance between the second conductive layer 142 of the second conductive element 14 and the outer edge of the circuit board 11, wherein a certain interval space is reserved between the outer edge of the second conductive layer 142 and the outer edge of the circuit board 11, that is, the outer edge of the second conductive layer 142 does not extend to the outer edge of the circuit board 11, and in the same way, in order to facilitate adjustment of the creepage distance between the first conductive layer 132 of the first conductive element 13 and the second conductive layer 142 of the second conductive element 14, the creepage distance can also be adjusted by adjusting the interval distance between the first conductive layer 132 and the second conductive layer 142.

In addition to the above-mentioned implementation structure of the second conductive layer 142 with a ring-shaped closed structure (see fig. 9 and 10), in this embodiment, the implementation structure of the second conductive layer 142 on the second surface 112 of the circuit board 11 is not limited thereto, and the second conductive layer 141 may be a non-ring-shaped closed structure, for example, a semi-ring structure with both ends not closed, or a fan-shaped structure, and similarly, the remaining area of the second surface 112 of the circuit board 11, which is disposed corresponding to the first conductive layer 132 and the second conductive layer 142, is an electrically insulating area, where the electrically insulating area may also be an insulating structure formed integrally with the body of the circuit board 11 directly, or an insulating layer structure applied later, for the purpose of avoiding the short circuit of the light emitting module 12 caused by direct contact between the first conductive layer 132 and the second conductive layer 142.

Based on the three implementation structures of the present embodiment shown in the aforementioned fig. 9, 10 and 11, further combining with one of fig. 12 to 16, a schematic illustration of a lamp panel structure for a lamp is shown, wherein the main difference between the present embodiment and embodiment 1 is that the first conductive member 13 of the present embodiment is in the form of a conductive layer, in which case, when the circuit board 11 is used in a lamp, a conductive post needs to be added to access the fire wire of the mains.

The present embodiment further provides a light bulb, which may be applied with the light panel structure 1 described in fig. 9, 10 or 11, and in addition to the light panel structure 1, further combined with one of fig. 12 to 16, the light bulb further includes:

The lamp holder shell 2 is a cylindrical shell structure with two open ends and is formed by conductive materials, and is used for being connected with a lamp holder (namely, the outside of the lamp holder shell is matched with the lamp holder shell 2, and the lamp holder shell form a part of a lamp), one end of the lamp holder shell 2 is provided with a necking structure 21, a circuit board 11 of the lamp holder shell structure 1 is fixedly arranged in the cylindrical structure of the lamp holder shell 2, a second conductive layer 142 on a second surface 112 of the circuit board 11 is attached to the inner side wall of the necking structure 21 of the lamp holder shell 2, and a first conductive layer 132 on the second surface 112 of the circuit board 11 is not contacted with the lamp holder shell 2;

the connecting piece 3 is made of insulating materials, the connecting piece 3 is arranged on the necking structure 21 of the lamp cap shell 2, a through hole 31 penetrating through two ends of the connecting piece is arranged in the middle of the connecting piece, and the through hole 31 is opposite to the first conductive layer 132 on the second surface 112 of the circuit board 11;

a conductive post 4 having one end penetrated by the through hole 31 of the connector 3 and contacting the first conductive layer 132 on the second surface 112 of the circuit board 11;

The lamp housing 5 is a hollow structure with one open end, and the open end of the lamp housing is connected with the lamp cap shell 2.

The lamp cap shell 2 of the lamp bulb in the embodiment is similar to the existing commercial product, namely, when the lamp bulb is matched with an external lamp holder in use, the main body of the lamp cap shell 2 is mainly connected with a zero line N of commercial power, and the conductive column 4 penetrating through the lamp cap shell 2 through the connecting piece 3 is mainly used for being connected with a live wire L of the commercial power, so that the effect of connecting the commercial power to the light-emitting module 12 is achieved.

In order to improve the illumination controllability or the light condensing performance of the light emitting module 12, as a preferred implementation choice, preferably, the bulb of the present embodiment further includes an inner lens 6, one end of the inner lens 6 is disposed in the lampshade 5, and the other end is fixedly covered on the first surface 111 of the circuit board 11, so as to cover the light emitting module 12 therein.

In this solution, one of the functions of the connecting member 3 is to separate the conductive post 4 from the base housing 2, so as to avoid the contact between the conductive post 4 and the base housing 2 after power is supplied to cause a short circuit of the light emitting module 12, besides, because the bulb may generate heat during operation, in order to avoid damage or other abnormality of the light emitting module 12 caused by the entry of external humid air into the lamp housing 5, it is necessary to improve the connection reliability and tightness of the connecting member 3, and in order to facilitate installation, as a preferred implementation option, one end of the connecting member 3 may be attached to the second surface 112 of the circuit board 11, and after the connecting member 3 is installed in the base housing 2, the other end of the connecting member 3 is penetrated out by the necking structure 21 of the base housing 2 and exposed outside the base housing 2, and the shape of the connecting member 3 may also be shaped like a cone, with a frustum-shaped large mouth end attached to the second surface 112 of the circuit board 11.

The arrangement form of the connecting piece 3 in this embodiment is not limited to the above, and the connecting piece 3 may be directly formed on the necking structure 21 of the lamp cap housing 2 by injection molding, that is, the connecting piece 3 is directly formed on a metal piece by an injection molding process with the metal piece, so that the subsequent process of separately installing the connecting piece 3 is omitted.

In order to improve the tightness of the connection structure between the lamp shade 5 and the lamp cap housing 2, preferably, the inner wall of the lamp cap housing 2 is provided with an internal thread structure, the open end of the lamp shade 5 is provided with an external thread structure 51 corresponding to the internal thread structure, the open end of the lamp shade 5 is fixedly connected in the lamp cap housing 2 through the external thread structure, and the circuit board 11 of the lamp plate structure 1 is restrained and fixed between the necking structure 21 of the lamp cap housing 2 and the open end of the lamp shade 5.

With the above-mentioned structure scheme, when the lamp bulb of this scheme is assembled, the lens 6 and the first surface 111 of the circuit board 11 may be attached and fixed (in the form of gluing or other fixing connection forms), so that the light emitting module 12 on the first surface 111 of the circuit board 11 is covered by the lens 6, then the connecting piece 3 with the conductive post 4 penetrating therethrough is attached and fixed to the second surface 112 of the circuit board 11, so that the conductive post 4 contacts the first conductive layer 132 (i.e. the portion where the first conductive piece 13 mates with the conductive post 4) (this step may also be before the lens 6 is installed), then the lamp panel structure 1 is placed in the lamp cap housing 2, so that the second surface 112 of the circuit board 11 of the lamp panel structure 1 contacts the inner side wall of the reduced opening structure 21 of the lamp cap housing 2, so that the second conductive layer 142 of the second conductive piece 14 contacts the locking structure 21 of the lamp cap housing 2, and then the lamp cap 5 is locked in the lamp cap housing 2 with the open end of the external thread structure 51, so that the lamp panel structure 1 is restrained and fixed in the lamp cap housing 2 (i.e. the lamp panel structure 1 is fixed between the reduced opening structure 21 and the lamp cap structure 5).

When the connecting member 3 is injection molded in advance on the locking structure of the cap housing 2, the step of individually attaching and fixing the connecting member 3 to the second surface 112 of the circuit board 11 can be removed in the foregoing assembling step, and when the circuit board 11 is restrained and fixed in the cap housing 2, the conductive post 4 is inserted so as to be in contact with the first conductive layer 132 of the first conductive member 13, and if the conductive post 4 is molded and assembled together (i.e., injection molded and assembled with a metal member) during molding of the connecting member 3, the conductive post 4 does not need to be separately installed subsequently.

Example 3

Referring to fig. 17 or fig. 18, the lamp panel structure 1 of the present embodiment is substantially the same as embodiment 2, and is different in that the implementation manner of the second conductive member 14 of the present embodiment is different, in the present embodiment, the second conductive member 14 includes a connection wire 143, one end of the connection wire 143 is divided into at least one conductive wire 1431, the end of at least one conductive wire 1431 respectively passes through the circuit board 11 and extends to the second surface 112 of the circuit board 11, the circuit board 11 is correspondingly provided with a through hole 113 for the conductive wire 1431 to pass through, and the other end of the connection wire 143 is connected with the second end of the optical module 12.

In the structure of this embodiment, the implementation manner of the first conductive member 13 is also in the form of a first conductive layer, which is disposed in the middle of the second surface 112 and connected to the first end of the light emitting module 12 as in embodiment 2.

On the basis of this, in the structure of this embodiment, when the end portion of at least one of the conductive wires 1431 extends to the second surface 112 of the circuit board 11, it may be partially higher than the second surface 112, and when at least one of the conductive wires 1421 is multi-stranded, it may pass through the circuit board 11 from the first surface 111 of the circuit board 11 to the second surface 112 in the form of an annular array, and the end portion higher than the second surface 112 may be used to contact with the inner wall of the cap housing of the bulb when the lamp panel structure 1 is installed in the bulb.

In order to further improve the electrical contact reliability of the lamp panel structure 1 installed in the lamp bulb, as shown in fig. 19, another implementation form of the second conductive member 14 of the present embodiment is shown, and the second conductive member 14 of the present embodiment may further include a conductive sheet 144, where the conductive sheet 143 is disposed on the second surface 112 of the circuit board 11 and connected to the end of the conductive wire 1431 disposed on the second surface 112, that is, the contact reliability of the connection wire 142 and the lamp cap housing is further improved by the conductive sheet 143.

When the lamp panel structure 1 of the present embodiment is installed in a lamp bulb, the installation mode is substantially the same as that of embodiment 1, and the description thereof will not be repeated herein, and meanwhile, the reference numerals, which are not mentioned in the drawings incorporated by reference in the present embodiment, are substantially the same as that of embodiment 2, and the description thereof will not be repeated herein.

Example 4

As shown in fig. 20, 21 and 22, the lamp panel structure 1 of the present embodiment is substantially the same as embodiment 3, and is different in that, in this embodiment, the implementation form of the second conductive member 14 of the present embodiment is different, in this embodiment, the second conductive member 14 further includes at least one conductive elastic sheet 145, one end of the conductive elastic sheet 145 is fixed at the edge of the circuit board 11, and forms an extension portion 1451 to connect with the conductive wire 1431 of the connection wire 143, the circuit board 11 is correspondingly provided with a avoiding through hole 113 through which the conductive wire 1431 passes, the other end of the conductive elastic sheet 145 extends out of the circuit board 11, and further, as shown in fig. 18, in the implementation structure of the lamp panel structure 1 with the conductive elastic sheet 145, when the lamp panel structure 1 of the present embodiment is installed in a lamp bulb, the conductive elastic sheet 145 contacts with the inner wall of the lamp cap housing 2 (as shown in fig. 22), where, due to a certain elastic force, the conductive elastic sheet 145 (such as a copper sheet, an iron sheet or other conductive alloy) has a certain elastic force, so that the light emitting module 12 can be improved in access stability, and the lamp panel structure is prevented from contacting the lamp cap housing 2 from contacting the power down stably.

In the structure of this embodiment, the implementation manner of the first conductive member 13 is the same as that of embodiment 3, and is disposed in the middle of the second surface 112 and connected to the first end of the light emitting module 12.

As another implementation of the second conductive member 14, as shown in fig. 23, in order to further improve the conductive contact surface between the lamp panel structure 1 and the lamp cap shell of the lamp, the second conductive member 14 may further include a conductive layer 146 disposed on the second surface 112 of the circuit board 11, where the conductive layer 146 has a ring structure, that is, the conductive layer 146 with the ring structure covers one end of the conductive elastic sheet 145, so as to improve the contact reliability between the second conductive member 14 and the inside of the lamp cap shell 2 when the lamp panel structure 1 is installed.

When the lamp panel structure 1 of the present embodiment is installed in a lamp bulb, the installation mode is substantially the same as that of embodiment 2, and the description thereof will not be repeated herein, and meanwhile, the reference numerals, which are not mentioned in the drawings incorporated by reference in the present embodiment, are substantially the same as that of embodiment 2, and the description thereof will not be repeated herein.

The foregoing description is only a partial embodiment of the present utility model, and is not intended to limit the scope of the present utility model, and all equivalent devices or equivalent processes using the descriptions and the drawings of the present utility model or directly or indirectly applied to other related technical fields are included in the scope of the present utility model.

Claims (10)

1. The lamp panel structure is characterized by comprising a circuit board, a light emitting module, a first conductive part and a second conductive part, wherein the circuit board is provided with a first surface and a second surface which are opposite, the light emitting module is arranged on the first surface, the first conductive part and the second conductive part are arranged on the second surface of the circuit board and are not contacted with each other, the light emitting module is provided with a first end and a second end which are used for being connected with power supply, the first end is electrically connected with the first conductive part, and the second end is electrically connected with the second conductive part.

2. The lamp panel structure of claim 1, wherein the first conductive member comprises a conductive post threaded or riveted to a middle portion of the second surface of the circuit board, the conductive post being electrically connected to the first end of the light emitting module.

3. The lamp panel structure of claim 1, wherein the first conductive member comprises a first conductive layer disposed on a central portion of the second surface, the first conductive layer being electrically connected to the first end of the light emitting module.

4. The lamp panel structure of claim 3, wherein the second conductive member comprises a second conductive layer disposed on the second surface, the second conductive layer being electrically connected to the second end of the light emitting module;

The second conductive layer is of an annular closed structure or a non-annular closed structure;

When the second conductive layer is of an annular closed structure, the second conductive layer surrounds the first conductive piece, and an electric insulation area is arranged between the first conductive piece and the second conductive layer, wherein the outer edge of the second conductive layer extends to the outer edge of the circuit board or an electric insulation area is arranged between the outer edge of the second conductive layer and the outer edge of the circuit board;

When the second conductive layer is of a non-annular closed structure, the rest areas of the second surface except the arrangement areas of the first conductive layer and the second conductive layer are electric insulation areas, and the part, close to the outer edge of the circuit board, of the second conductive layer extends outwards to the outer edge of the circuit board or a gap is reserved between the part and the outer edge of the circuit board.

5. A lamp panel structure as claimed in claim 2 or 3, characterized in that the second conductive member comprises a connecting wire, one end of the connecting wire is divided into at least one conductive wire, the end of at least one conductive wire passes through the circuit board and extends to the second surface of the circuit board, the circuit board is correspondingly provided with a through hole for the conductive wire to pass through, and the other end of the connecting wire is electrically connected with the second end of the optical module.

6. The lamp panel structure of claim 5, wherein the second conductive member further comprises:

The conductive sheets are arranged on the second surface and are connected with the corresponding conductive wires in a one-to-one correspondence mode.

7. The lamp panel structure of claim 5, wherein the second conductive member further comprises:

The number of the conductive elastic pieces is in one-to-one correspondence with that of the conductive wires, one end of each conductive elastic piece is arranged at the edge of the second surface of the circuit board and is connected with the corresponding conductive wire, and the other end of each conductive elastic piece extends out of the circuit board.

8. A lamp panel structure as claimed in one of claims 1 to 3, characterized in that the light emitting module is powered by mains supply, the first conductive member is for accessing a live wire of the mains supply, the second conductive member is for accessing a neutral wire of the mains supply, and the light emitting module is an LED light emitting module.

9. A lamp bulb, characterized in that it comprises a lamp panel structure according to one of claims 1 to 8, the lamp bulb further comprising:

The lamp holder shell is of a cylindrical shell structure with two open ends, is made of conductive materials and is used for being connected with a lamp holder, and one end of the lamp holder shell is of a necking structure;

The connecting piece is made of insulating materials, is arranged on the necking structure of the lamp cap shell, and is provided with through holes penetrating through two ends of the connecting piece at the middle part;

The conducting ring is a conducting piece, is arranged on the second surface of the circuit board and is attached to the second conducting piece, and at least one extending piece extending outwards is arranged on the periphery side of the conducting ring at intervals and is used for being attached to the inner wall of the cylindrical structure of the lamp cap shell;

The circuit board of the lamp panel structure is arranged in the cylindrical structure of the lamp cap shell, the end part of the first conductive piece on the circuit board, which is far away from the circuit board, sequentially passes through the through hole on the connecting piece and the necking structure of the lamp cap shell, and is exposed out of the lamp cap shell, and an insulation interval is formed between the first conductive piece and the lamp cap shell, and the insulation interval is used for connecting a live wire of mains supply;

The lamp shade is a hollow structure with one open end, and the open end of the lamp shade is connected with the lamp cap shell.

10. The bulb according to claim 9, wherein the connecting piece is made of elastic insulating materials, one end face of the connecting piece is attached to the second surface of the circuit board and covers the conducting ring part, the other end face of the connecting piece is provided with a protruding part corresponding to the necking structure of the lamp cap shell, the protruding part penetrates out of the necking structure of the lamp cap shell, and the through hole penetrates through the protruding part;

The inner wall of the lamp cap shell is provided with an internal thread structure, the open end of the lamp shade is provided with an external thread structure corresponding to the internal thread structure, the open end of the lamp shade is fixedly connected in the lamp cap shell through the external thread structure, and the circuit board of the lamp plate structure is restrained and fixed between the necking structure of the lamp cap shell and the open end of the lamp shade.