Lamp panel structure and bulb using same

Abstract

According to the technical scheme, a light-emitting module is ingeniously arranged on the first surface of a circuit board, and a first conductive piece and a second conductive piece which are not in contact with each other are arranged on the second surface opposite to the first surface; the structure is reliable in implementation and compact in structure, and according to the scheme, the creepage distance of the circuit board for connecting the zero line and the live line of the mains supply into the light-emitting module can be adjusted by adjusting the specification of the electric insulation area arranged on the second surface of the circuit board; in addition, the conductive columns can be directly arranged on the circuit board as the first conductive pieces, so that when the circuit board is installed in the bulb, the installation efficiency can be improved; in addition, according to the scheme, the connecting piece formed by the elastic insulating material serves as a matching piece between the circuit board and the lamp holder shell, the waterproof capacity of the lamp holder can be greatly improved, and the use safety and reliability of the bulb are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of a light bulb circuit board and a light bulb structure, in particular to a light board structure and a light bulb using the light board structure. Background Art

[0002] As a common device for daily lighting and background rendering, light bulbs are widely used in various scenes. At present, the structure of most LED light bulbs includes a lampshade, a circuit board, a light-emitting module, a lamp housing and a conductive column (for example, Chinese patent CN214198212 U), and due to the structural characteristics of the lamp holder shell, in most of the current light bulbs, the circuit board will lead out connecting wires or metal pins for the circuit board to connect to the neutral and live wires of the power supply, among which the neutral wire is mostly in contact with the lamp holder shell made of conductive material, and the live wire is in contact with the conductive column. When this structure is used to produce and package light bulbs, the lamp holder shell and the lampshade will be further fixedly connected. In this process, since the connecting wires or metal pins have a certain degree of freedom of movement (material characteristics or contact connection characteristics), the connection status or position reliability of the connecting wires and the lamp holder shell and the conductive column will be affected to a certain extent, resulting in differences in the contact between the connecting wires on the circuit boards of different light bulbs and the lamp holder shell and the conductive column, which will affect the yield of the light bulb during production and its life in later use to a certain extent. At the same time, it will also affect the efficiency and structural consistency of the light bulb during installation. Therefore, how to optimize the light board structure and the structure of the connection between the light board and the lamp holder shell to improve the assembly efficiency and yield of the light bulb, as well as the reliability, is a very positive and practical research topic. Summary of the invention

[0003] In view of this, the purpose of the utility model is to provide a lamp panel structure with simple structure, reliable implementation and high assembly efficiency, and a bulb using the lamp panel structure.

[0004] In order to achieve the above technical objectives, the technical solution adopted by the utility model is:

[0005] A light board structure includes a circuit board, a light-emitting module, a first conductive member, and a second conductive member. The circuit board has a first surface and a second surface opposite to each other. The light-emitting module is arranged on the first surface. The first conductive member and the second conductive member are both arranged on the second surface of the circuit board and do not contact each other. The light-emitting module has a first end and a second end for connecting to a power supply. The first end is electrically connected to the first conductive member, and the second end is electrically connected to the second conductive member.

[0006] As one of the possible implementations of the first conductive member, further, in this solution, the first conductive member includes a conductive column threaded or riveted on the middle of the second surface of the circuit board, and the conductive column is electrically connected to the first end of the light emitting module.

[0007] As a second possible implementation of the first conductive member, further, in this solution, the first conductive member includes a first conductive layer disposed on the middle portion of the second surface; the first conductive layer is electrically connected to the first end of the light emitting module.

[0008] As one of the possible implementations of the second conductive element, preferably, in this solution, 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.

[0009] As a preferred implementation option, preferably, the second conductive layer of this solution is a ring-shaped closed structure or a non-ring-shaped closed structure;

[0010] When the second conductive layer is an annular closed structure, it surrounds the first conductive member, and an electrical insulation region is provided between the first conductive member 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 electrical insulation region is provided between the outer edge of the second conductive layer and the outer edge of the circuit board;

[0011] When the second conductive layer is a non-annular closed structure, the remaining area of ​​the second surface outside the area where the first conductive layer and the second conductive layer are set is an electrically insulating area, and the portion of the second conductive layer close to the outer edge of the circuit board extends outward to the outer edge of the circuit board or leaves a gap between the portion and the outer edge of the circuit board.

[0012] As a second possible implementation of the second conductive member, preferably, in this scheme, the second conductive member includes a connecting wire, one end of the connecting wire is divided into at least one conductive wire, the ends of at least one conductive wire respectively pass through the circuit board and extend to the second surface of the circuit board, and the circuit board is correspondingly provided with an avoidance through hole for the conductive wire to pass through; the other end of the connecting wire is electrically connected to the second end of the optical module.

[0013] As a third possible implementation of the second conductive member, based on the above, preferably, the second conductive member of this solution further includes:

[0014] The number of the conductive sheets corresponds to the number of the conductive lines. The conductive sheets are arranged on the second surface and connected to the corresponding conductive lines.

[0015] As a fourth possible implementation of the second conductive member, the second conductive member of this solution further includes:

[0016] The number of the conductive springs corresponds to the conductive wires one by one. One end of the conductive spring is arranged on the edge of the second surface of the circuit board and connected to the corresponding conductive wire. The other end of the conductive spring extends out of the circuit board.

[0017] As a preferred implementation option, preferably, the light-emitting module described in this solution is powered by AC power, the first conductive member is used to connect to the live wire of the AC power, and the second conductive member is used to connect to the neutral wire of the AC power; the light-emitting module is an LED light-emitting module.

[0018] Based on the above, the utility model further provides a light bulb, which includes the light board structure described above, and the light bulb also includes:

[0019] The lamp holder shell is a cylindrical shell structure with two ends open. The lamp holder shell is formed of a conductive material and is used to connect with the lamp holder. One end of the lamp holder shell is a constricted structure.

[0020] A connecting piece, made of insulating material, is arranged on the necking structure of the lamp holder housing, and has a through hole penetrating through both ends of the connecting piece;

[0021] A conductive ring is a conductive member, which is arranged on the second surface of the circuit board and is in contact with the second conductive member. The outer circumference of the conductive ring is provided with at least one extension piece extending outward, and the extension piece is used to be in contact with the inner wall of the cylindrical structure of the lamp holder housing; the conductive ring is insulated from the first conductive member;

[0022] The circuit board of the lamp board structure is arranged in the tubular structure of the lamp holder shell, the end of the first conductive member on the circuit board away from the circuit board passes through the through hole on the connecting member and the shrinkage structure of the lamp holder shell in sequence, and is exposed outside the lamp holder shell, and there is an insulating gap between the first conductive member and the lamp holder shell, which is used to connect the live wire of the mains; the conductive ring on the second surface of the circuit board is in contact with the inner side wall of the lamp holder shell, so that the second conductive member is indirectly electrically connected to the lamp holder shell, and the lamp holder shell is used to connect the neutral wire of the mains;

[0023] The lampshade is a hollow structure with one end open, and the open end is connected to the lamp holder housing.

[0024] As a preferred implementation option, preferably, the connecting piece described in this scheme is made of elastic insulating material, one end face of which is attached to the second surface of the circuit board and partially covers the conductive ring; the other end face of the connecting piece is provided with a protrusion corresponding to the necking structure of the lamp holder shell, the protrusion partially passes through the necking structure of the lamp holder shell, and the through hole passes through the protrusion.

[0025] As a preferred implementation option, preferably, the inner wall of the lamp holder shell described in this scheme is provided with an internal thread structure, and 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 threadedly fixedly connected to the lamp holder shell through the external thread structure, and the circuit board of the lamp board structure is constrained and fixed between the shrinkage structure of the lamp holder shell and the open end of the lamp shade.

[0026] By adopting the above technical scheme, the utility model has the following beneficial effects compared with the prior art: the scheme cleverly arranges the light-emitting module on the first surface of the circuit board, and arranges the first conductive member and the second conductive member which are not in contact with each other on the second surface opposite to the first surface, so that the first conductive member and the second conductive member are respectively connected to the first end and the second end of the light-emitting module for power supply. This structural form is not only reliable in implementation and compact in structure, but also can adjust the creepage distance of the circuit board connecting the live wire of the mains to the light-emitting module by adjusting the specifications of the electrically insulating area arranged on the second surface of the circuit board; for example, by adjusting the width of the electrically insulating area between the first conductive member and the second conductive member, the creepage distance of the live wire of the mains can be adjusted. The electrical insulation interval of the conductive part is adjusted by adjusting the width of the electrical insulation area between the second conductive part and the edge of the circuit board to achieve the creepage distance between the second conductive part and the edge of the circuit board. Compared with the traditional scheme, the structure of this scheme is more compact and highly integrated, and it is more convenient to assemble the bulb. When the assembled bulb is installed on the lamp holder of the lamp to connect to the mains, the live wire of the mains is connected to the light-emitting module through the first conductive part and the conductive column, and the neutral wire of the mains is connected to the light-emitting module through the lamp holder shell and the second conductive part, so as to realize the reliable operation of the bulb. In addition, since the various structures on the circuit board of this scheme are relatively fixed structures, it also has good production installation efficiency and product yield.

[0027] In addition to the above, the present solution can also improve the installation efficiency by directly setting the conductive column as the first conductive component on the circuit board when the circuit board is installed in the light bulb; in addition, the present solution uses a connector formed of elastic insulating material as a matching part between the circuit board and the lamp holder housing. The connector can greatly improve the waterproof ability of the lamp holder and improve the safety and reliability of the light bulb. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0029] Figure 1It is a three-dimensional perspective schematic diagram of one of the implementation structures of the light panel structure of Example 1 of the present solution;

[0030] Figure 2 It is a three-dimensional perspective schematic diagram of the second implementation structure of the light panel structure of Example 1 of the present solution;

[0031] Figure 3 It is a schematic diagram of the connection principle between the lamp panel structure and the external power supply of Example 1 of the present solution;

[0032] Figure 4 It is a three-dimensional perspective schematic diagram of the second implementation structure of the light panel structure of Example 1 of the present solution;

[0033] Figure 5 It is a three-dimensional perspective schematic diagram of the third implementation structure of the light panel structure of Example 1 of the present solution;

[0034] Figure 6 This is a simplified cross-sectional schematic diagram of the lamp panel structure of Example 1 of the present solution when it is applied to a light bulb, and is installed in a lamp holder housing, which mainly shows the installation schematic diagram of the second implementation structure of the lamp panel structure in Example 1;

[0035] Figure 7 yes Figure 6 A simplified exploded schematic diagram of the mounting structure shown;

[0036] Figure 8 is a simplified cross-sectional schematic diagram of the lamp panel structure of Example 1 of the present solution when applied to a light bulb;

[0037] Fig. 9 It is a three-dimensional perspective schematic diagram of one of the implementation structures of the light panel structure of Example 2 of the present solution;

[0038] Fig.10 This is a side view schematic diagram of one of the implementation structures of the light panel structure of Example 2 of this solution

[0039] Fig.11 It is a three-dimensional perspective schematic diagram of the second implementation structure of the light panel structure of Example 2 of the present solution;

[0040] Fig.12 It is a three-dimensional perspective schematic diagram of the third implementation structure of the light panel structure of Example 2 of the present solution;

[0041] Fig.13 This is a brief three-dimensional perspective schematic diagram of the lamp panel structure of Example 2 of the present solution when it is applied to a light bulb;

[0042] Fig.14 is a simplified cross-sectional schematic diagram of the lamp panel structure of Example 2 of the present solution when applied to a lamp;

[0043] Fig.15It is a brief exploded schematic diagram of the lamp panel structure of Example 2 of the present solution when it is applied to a light bulb, wherein it mainly shows the installation schematic diagram of the second implementation structure of the lamp panel structure in Example 2;

[0044] Fig.16 It is a cross-sectional schematic diagram of the cooperation between the lamp panel structure, the inner lens, the connector and the conductive column when the lamp panel structure of Example 2 of the present solution is applied to a light bulb;

[0045] Fig.17 It is a three-dimensional perspective schematic diagram of one of the implementation structures of the light panel structure of Example 3 of the present solution;

[0046] Fig.18 It is a cross-sectional schematic diagram of one of the implementation structures of the light panel structure of Example 3 of the present scheme;

[0047] Fig.19 It is a cross-sectional schematic diagram of the second implementation structure of the light panel structure of Example 3 of the present scheme;

[0048] Fig. 20 It is a three-dimensional perspective schematic diagram of one of the implementation structures of the light panel structure of Example 4 of the present solution;

[0049] Fig.21 It is a cross-sectional schematic diagram of one of the implementation structures of the light panel structure of Example 4 of the present scheme;

[0050] Fig. 22 This is a simplified schematic diagram of the lamp panel structure installed in the light bulb in Example 4 of this solution;

[0051] Fig.23 It is a cross-sectional schematic diagram of the second implementation structure of the lamp panel structure of Example 4 of the present scheme. DETAILED DESCRIPTION

[0052] The present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It is particularly noted that the following embodiments are only used to illustrate the present invention, but do not limit the scope of the present invention. Similarly, the following embodiments are only partial embodiments of the present invention rather than all embodiments. All other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0053] Example 1

[0054] Combination Figures 1 to 3As shown in one of the embodiments, the present embodiment provides a lamp board structure 1, which includes a circuit board 11, a light-emitting module 12, a first conductive member 13 and a second conductive member 14, wherein the circuit board 11 has a first surface 111 and a second surface 112 opposite to each other, the light-emitting module 12 is arranged on the first surface 111, the first conductive member 13 and the second conductive member 14 are both arranged on the second surface 112 of the circuit board 11 and do not contact each other, the light-emitting module 12 has a first end 121 and a second end 122 for connecting to a power supply, the first end 121 is electrically connected to the first conductive member 13, and the second end 122 is electrically connected to the second conductive member 14.

[0055] As one of the possible implementations of the first conductive member 13 of the light board structure 1 of this embodiment, further, in this embodiment, the first conductive member 13 includes a conductive column 131 threaded or riveted on the middle of the second surface 112 of the circuit board 11, and the conductive column 131 is electrically connected to the first end 121 of the light-emitting module 12.

[0056] On this basis, the second conductive member 14 of the present solution includes a second conductive layer 141 disposed on the second surface 112 ; the second conductive layer 141 is electrically connected to the second end 122 of the light emitting module 12 .

[0057] In this embodiment, the first end 121 and the second end 122 of the light-emitting module 12 can be electrically connected to the conductive column 131 and the second conductive layer 131 respectively by setting a conductive through hole on the circuit board 11; in addition, a through hole can be opened on the circuit board 11, and then an ordinary wire, a printed wire, etc. pass through the through hole to achieve electrical connection with the conductive column 131 and the second conductive layer 131; and the conductive through hole or the through hole passing the printed wire or the ordinary wire is a common structural setting form of the circuit board, and its content details will not be repeated here.

[0058] In this embodiment, the second conductive layer 131 is a ring structure or other non-ring structure, with particular reference to Figure 1 When the second conductive layer 131 is a ring structure, it surrounds the conductive column 131 of the first conductive member 13. At the same time, there is an insulating gap between the second conductive layer 131 and the conductive column 131 of the first conductive member 13, that is, the second surface 112 portion between the second conductive layer 131 and the conductive column 131 of the first conductive member 13 is an electrically insulating area, and the ring structure of the second conductive layer 131 can extend to the edge of the second surface 112 of the circuit board 11.

[0059] The implementation form of the second conductive layer 131 of this embodiment is not limited to this. Figure 4As shown, the second conductive layer 131 of the annular structure may also form a certain interval with the edge of the second surface 112 of the circuit board 11, that is, the second surface 112 area 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.

[0060] In addition, when the second conductive layer 131 of the second conductive member 13 is a non-annular structure, it may be a fan-shaped structure, and the number of the fan-shaped structure may also be multiple, for example, with particular reference to Figure 5 As shown, a plurality of second conductive layers 131 are arranged in a ring array around the conductive pillars 131 of the first conductive member 13 .

[0061] In this embodiment, by using the conductive column 131 as a component of the first conductive member 13 and directly arranging it on the circuit board 11, it is possible to eliminate the need to separately install the conductive column 131 (or conductive nail, etc.) when the lamp board structure 1 is installed in the light bulb; in this structural form, the light bulb is not only easy to install, but also highly efficient.

[0062] In order to better illustrate the application of the lamp panel structure 1 of the embodiment in the light bulb, Figures 1 to 5 Based on the structure described in one of the above, further combined Figures 6 to 8 As shown in one of the figures, it shows the implementation of installing the lamp panel structure 1 in the lamp. Since the present embodiment mentions three implementations when the second conductive member 14 is the second conductive layer ( Figure 1 , Figure 4 , Figure 5 ), and when the corresponding lamp panel structure 1 is used in a lamp, the corresponding matching parts are not much different, so the following description is mainly based on Figure 4 The second conductive layer 141 shown is illustrated as a schematic structure.

[0063] Combination Figures 6 to 8 As shown in one of the embodiments, this embodiment further provides an implementation of the light board structure 1 used in a light bulb. When the light bulb includes the light board structure 1 described above, the light bulb also includes:

[0064] The lamp holder housing 2 is a cylindrical housing structure with two ends open. The lamp holder housing 2 is formed of a conductive material and is used to connect with a lamp holder (i.e., a lamp holder adapted to a light bulb). One end of the lamp holder housing 2 is a constricted structure 21.

[0065] The connecting member 3 is made of insulating material and is disposed on the necking structure 21 of the lamp holder housing 2. A through hole 31 penetrating through both ends of the connecting member is disposed in the middle thereof;

[0066] The conductive ring 4 is a conductive member, which is arranged on the second surface of the circuit board 11 and is in contact with the second conductive layer 141 of the second conductive member 14. The outer peripheral side of the conductive ring 4 is provided with at least one extension piece 41 extending outward, and the extension piece 41 is used to be in contact with the inner wall of the cylindrical structure of the lamp holder housing 2; the conductive ring 4 is insulated from the first conductive member 13.

[0067] The circuit board 11 of the lamp board structure 1 is arranged in the tubular structure of the lamp holder shell 2, and the end of the conductive column 131 of the first conductive member 13 on the circuit board 11 away from the circuit board 11 passes through the through hole 31 on the connecting member 3 and the shrinkage structure 21 of the lamp holder shell 2 in sequence, and is exposed outside the lamp holder shell 2, and there is an insulating gap between the conductive column 131 of the first conductive member 13 and the lamp holder shell 2, which is used to connect to the live wire of the mains; the conductive ring 4 on the second surface 112 of the circuit board 11 is in contact with the inner side wall of the lamp holder shell 2, so that the second conductive layer 131 of the second conductive member 14 is indirectly electrically connected to the lamp holder shell 2, and the lamp holder shell 2 is used to connect to the neutral wire of the mains;

[0068] The lampshade 5 is a hollow structure with one end open, and the open end is connected to the lamp holder housing 2 .

[0069] In order to improve the waterproof ability of the lamp holder shell 2 after the lamp board structure 1 is assembled and prevent external water vapor from entering the interior of the bulb through the installation gap between the connecting piece 3 and the light board structure 1, as a better implementation option, preferably, the connecting piece 3 described in this scheme is made of elastic insulating material, one end face of which is attached to the second surface 112 of the circuit board 11 and partially covers the conductive ring 4; the other end face of the connecting piece 3 is provided with a protrusion 32 corresponding to the necking structure 21 of the lamp holder shell 2, and the protrusion 32 partially passes through the necking structure 21 of the lamp holder shell 2, and the through hole 31 passes through the protrusion 32.

[0070] In the structure of the lamp shade 5 and the lamp holder housing 2, the inner wall of the lamp holder housing 2 is provided with an internal thread structure, and the open end of the lamp shade 5 is provided with an external thread structure corresponding to the internal thread structure. The open end of the lamp shade 5 is threadedly fixedly connected to the lamp holder housing 2 through the external thread structure, and the circuit board 11 of the lamp board structure 1 is constrained and fixed between the shrinkage structure 21 of the lamp holder housing 2 and the open end of the lamp shade 5 (such as Figure 8 shown).

[0071] In this embodiment, in order to improve the light emission uniformity of the light bulb, a lens 6 may be further installed in the lampshade 5 of the light bulb.

[0072] Example 2

[0073] like Fig. 9 , Fig.12 As shown, the lamp panel structure 1 of this embodiment is substantially the same as that of the first embodiment, except that the implementation form or structure of the first conductive member 13 and the second conductive member 14 of this embodiment is different from that of the first embodiment.

[0074] Similarly, the lamp board structure 1 of the present embodiment includes a circuit board 11, a light-emitting module 12, a first conductive member 13 and a second conductive member 14, wherein the circuit board 11 has a first surface 111 and a second surface 112 relative to each other, the light-emitting module 12 is arranged on the first surface 111, and the first conductive member 13 and the second conductive member 14 are both arranged on the second surface 112 of the circuit board 11 and do not contact each other.

[0075] In this embodiment, the light emitting module 12 is an LED light emitting module. Figure 3 As shown, with regard to the power supply connection method of the light emitting module 12, this embodiment is the same as embodiment 1, that is, the light emitting module 12 is powered by AC power. At the same time, the light emitting module 12 of this embodiment is electrically connected to the first conductive member 13 and the second conductive member 14 in the same manner, that is, the light emitting module 12 has a first end 121 and a second end 122 for connecting to power supply, 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.

[0076] Focus on reference Fig. 9 As shown, as one of the implementation examples of the first conductive member 13 and the second conductive member 14 of this embodiment, in this embodiment, the first conductive member 13 includes a first conductive layer 132 arranged in the middle of the second surface 112, and the second conductive member 14 includes a second conductive layer 142 arranged on the second surface 112 and surrounding the first conductive layer 132, wherein the first conductive layer 132 is used to connect to the live wire L of the AC power, and the second conductive layer 141 is used to connect to the neutral wire N of the AC power.

[0077] In addition, combined Figure 3 , Fig. 9In this embodiment, the first conductive layer 132 can be connected to the first end 121 of the light emitting module 12 through a wire, and the second conductive layer 142 can be connected to the second end 122 of the light emitting module 12 through a wire; and the wire can be a printed wire printed on the circuit board 11, or a common wire not printed on the circuit board 11. When it is a common wire, the circuit board 11 can be provided with through holes or conductive holes corresponding to the first conductive layer 131 and the second conductive layer 141 for the wire to pass through the circuit board 11 and connect with the first end 121 and the second end 122 of the light emitting module 12. The circuit board 11 can also be provided with conductive holes that penetrate the circuit board 11 to electrically connect the first conductive layer 132 and the second conductive layer 142 to the light emitting module 12. Passing the wire or the conductive hole through the through hole is a common electrical connection layout form of the circuit board, and its content details are not repeated here.

[0078] Fig. 9 In the illustrated solution, the second surface 112 of the circuit board 11, except for the positions where the first conductive layer 132 and the second conductive layer 142 are arranged, is an electrically insulating area, so as to avoid electrical connection between the first conductive layer 132 and the second conductive layer 142, thereby preventing the light-emitting module from being electrically short-circuited. The outer edge of the second conductive layer 141 extends to the outer edge of the circuit board 11.

[0079] Since the light panel structure of this scheme is arranged in the light bulb for use, in order to improve its safety, combined with Fig.10 As shown, another implementation structure of the present embodiment is shown, in which the electrical safety of the circuit board is achieved by adjusting the creepage distance between the second conductive layer 142 of the second conductive member 14 and the outer edge of the circuit board 11, wherein a certain spacing space can be 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; similarly, in order to facilitate the adjustment of the creepage distance between the first conductive layer 132 of the first conductive member 13 and the second conductive layer 142 of the second conductive member 14, in the present solution, the creepage distance can also be adjusted by adjusting the spacing distance between the first conductive layer 132 and the second conductive layer 142.

[0080] In addition to the aforementioned second conductive layer 142 being a ring-shaped closed structure (see Fig. 9 , Fig.10 ) implementation structure, combined with Fig.11As shown, 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 also be a non-annular closed structure, for example, a semi-annular structure with open ends or a fan-shaped structure; similarly, the remaining area on the second surface 112 of the circuit board 11 corresponding to the first conductive layer 132 and the second conductive layer 142 is an electrically insulating area, wherein the electrically insulating area may also be directly an insulating structure integrally formed with the circuit board 11 body, or an insulating layer structure applied later, the purpose of which is to avoid a short circuit of the light-emitting module 12 caused by direct contact between the first conductive layer 132 and the second conductive layer 142.

[0081] Based on the aforementioned Fig. 9 , Fig.10 , Fig.11 The three implementation structures shown are further combined Figures 12 to 16 One of them shows a schematic diagram of a lamp board structure for a light bulb, wherein the main difference between this embodiment and embodiment 1 is that the first conductive member 13 of this embodiment is in the form of a conductive layer. In this case, when the circuit board 11 is used in a light bulb, a conductive column needs to be installed thereon to connect the live wire of the AC power.

[0082] This embodiment also provides a light bulb, which can be applied to the above Fig. 9 , Fig.10 or Fig.11 The light board structure 1, in addition to the light board structure 1, is further combined with Figures 12 to 16 As shown in one of the embodiments, the light bulb further includes:

[0083] The lamp holder shell 2 is a cylindrical shell structure with two ends open and is formed of a conductive material, which is used to connect with a lamp holder (i.e., a lamp holder that is externally adapted to the lamp holder shell 2, and the two constitute a part of the lamp), one end of the lamp holder shell 2 is a constricted structure 21, and the circuit board 11 of the light board structure 1 is fixedly arranged in the cylindrical structure of the lamp holder shell 2, the second conductive layer 142 on the second surface 112 of the circuit board 11 is in contact with the inner side wall of the constricted structure 21 of the lamp holder shell 2, and the first conductive layer 132 on the second surface 112 of the circuit board 11 is not in contact with the lamp holder shell 2;

[0084] The connecting member 3 is made of insulating material and is disposed on the necking structure 21 of the lamp housing 2. A through hole 31 penetrating through both ends of the connecting member is disposed in the middle thereof. The through hole 31 is opposite to the first conductive layer 132 on the second surface 112 of the circuit board 11.

[0085] A conductive column 4, one end of which passes through the through hole 31 of the connector 3 and contacts the first conductive layer 132 on the second surface 112 of the circuit board 11;

[0086] The lampshade 5 is a hollow structure with one end open, and the open end is connected to the lamp holder housing 2 .

[0087] The lamp holder shell 2 of the light bulb in this embodiment is similar to the existing commercially available products, that is, in use, after the light bulb is matched with the external lamp holder, the main body of the lamp holder shell 2 is mainly connected to the neutral line N of the AC power, and the conductive column 4 inserted through the connector 3 on the lamp holder shell 2 is mainly used to connect to the live line L of the AC power; thereby achieving the effect of connecting the AC power to the light-emitting module 12.

[0088] In order to improve the lighting controllability or focusing of the light-emitting module 12, as a preferred implementation option, preferably, the light bulb of this scheme may also include an inner lens 6, one end of which is arranged in the lampshade 5, and the other end is fixedly covered on the first surface 111 of the circuit board 11, covering the light-emitting module 12 therein.

[0089] In the present solution, one of the functions of the connector 3 is to separate the conductive column 4 and the lamp holder housing 2 to prevent the two from contacting each other after being energized and causing a short circuit in the light-emitting module 12. In addition, since the light bulb may generate heat when it is working, in order to prevent external humid air from entering the lampshade 5 and causing damage to the light-emitting module 12 or other abnormalities, it is very necessary to improve the connection reliability and tightness of the connector 3. At the same time, in order to facilitate installation, as a better implementation option, preferably, one end of the connector 3 described in the present solution can be attached to the second surface 112 of the circuit board 11, and after the connector 3 is installed in the lamp holder housing 2, the other end of the connector 3 passes through the necking structure 21 of the lamp holder housing 2 and is exposed outside the lamp holder housing 2, and the shape of the connector 3 can also be made into a cone shape, and its cone-shaped large mouth end is in contact with the second surface 112 of the circuit board 11.

[0090] The arrangement of the connector 3 of the present solution may not be limited to the above, and the connector 3 may be directly molded on the necking structure 21 of the lamp holder housing 2 by injection molding, that is, the connector 3 may be directly molded on the metal part by an injection molding process with a metal part, thereby eliminating the subsequent process of separately installing the connector 3.

[0091] In order to improve the tightness of the connection structure between the lampshade 5 and the lamp holder shell 2, as a better implementation option, preferably, the inner wall of the lamp holder shell 2 described in this scheme is provided with an internal thread structure, and the open end of the lampshade 5 is provided with an external thread structure 51 corresponding to the internal thread structure, and the open end of the lampshade 5 is threadedly fixedly connected to the lamp holder shell 2 through the external thread structure, and the circuit board 11 of the lamp board structure 1 is constrained and fixed between the shrinkage structure 21 of the lamp holder shell 2 and the open end of the lampshade 5.

[0092] With the above-mentioned structural solution, when assembling the light bulb of the present solution, the lens 6 can be firstly fixed to the first surface 111 of the circuit board 11 (by gluing or other fixed 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, and then the connector 3 with the conductive column 4 inserted therein is fixedly fitted to the second surface 112 of the circuit board 11, so that the conductive column 4 is in contact with the first conductive layer 132 (that is, the part where the first conductive member 13 and the conductive column 4 cooperate) (this step can also be performed in the lens 6). The mirror 6 is installed before), and then the lamp board structure 1 is placed in the lamp holder shell 2, so that the second surface 112 of the circuit board 11 of the lamp board structure 1 is in contact with the inner wall of the necking structure 21 of the lamp holder shell 2, and the second conductive layer 142 of the second conductive member 14 is in contact with the locking structure 21 of the lamp holder shell 2, and then the open end of the lampshade 5 with the external thread structure 51 is screwed into the lamp holder shell 2 and locked, so that the lamp board structure 1 is constrained and fixed in the lamp holder shell 2 (that is, the lamp board structure 1 is fixed between the necking structure 21 and the open end of the lampshade 5).

[0093] When the connector 3 is pre-injection molded on the locking structure of the lamp holder housing 2, the step of separately attaching and fixing the connector 3 to the second surface 112 of the circuit board 11 can be removed in the aforementioned assembly steps. When the circuit board 11 is constrained and fixed in the lamp holder housing 2, the conductive column 4 is inserted to make it contact with the first conductive layer 132 of the first conductive component 13. If the conductive column 4 is molded and assembled together with the connector 3 when it is molded (i.e., injection molding assembly with metal parts), there is no need to install the conductive column 4 separately later.

[0094] Example 3

[0095] Combination Fig.17 or Fig.18 As shown, the lamp board structure 1 of the present embodiment is substantially the same as that of the present embodiment 2, except that the implementation form of the second conductive member 14 of the present embodiment is different. In the present embodiment, the second conductive member 14 includes a connecting wire 143, one end of the connecting wire 143 is divided into at least one conductive wire 1431, and the ends of at least one conductive wire 1431 respectively pass through the circuit board 11 and extend to the second surface 112 of the circuit board 11, and a corresponding avoidance through hole 113 is provided on the circuit board 11 for the conductive wire 1431 to pass through; the other end of the connecting wire 143 is connected to the second end of the optical module 12.

[0096] In the structure of this embodiment, the first conductive member 13 is implemented in the form of a first conductive layer as in Embodiment 2, and is disposed in the middle of the second surface 112 and connected to the first end of the light emitting module 12 .

[0097] On this basis, in the structure of this embodiment, when the end of at least one strand of the conductive wire 1431 extends to the second surface 112 of the circuit board 11, it can be partially higher than the second surface 112 shown. When at least one strand of the conductive wire 1421 is multiple strands, it can be in the form of a circular array from the first surface 111 of the circuit board 11 through the circuit board 11 and extend to the second surface 112. The end that is higher than the second surface 112 can be used to contact the inner wall of the lamp holder shell of the bulb when the lamp board structure 1 is installed in the bulb.

[0098] In order to further improve the electrical contact reliability of the lamp panel structure 1 when installed in the lamp, Fig.19 As shown, another implementation form of the second conductive member 14 of the present embodiment is shown. The second conductive member 14 of the present embodiment may further include a conductive sheet 144. The conductive sheet 143 is arranged on the second surface 112 of the circuit board 11 and is connected to the end of the conductive wire 1431 arranged on the second surface 112, that is, the conductive sheet 143 is further used to increase the contact reliability between the connecting wire 142 and the lamp holder housing.

[0099] When the lamp panel structure 1 of this embodiment is installed in a light bulb, its installation method is substantially the same as that of Embodiment 1, and will not be described in detail here. At the same time, the numbers not mentioned in the diagrams referenced in this embodiment are substantially the same as those of Embodiment 2, and will not be described in detail here.

[0100] Example 4

[0101] Combination Fig. 20 , Fig.21 , Fig. 22 As shown, the lamp board structure 1 of the present embodiment is substantially the same as that of the embodiment 3, except that the implementation form of the second conductive member 14 of the present embodiment is different. In the present embodiment, the second conductive member 14 of the present embodiment further includes at least one conductive spring 145, one end of the conductive spring 145 is fixed to the edge of the circuit board 11, and an extension portion 1451 is formed to be connected to the conductive wire 1431 of the connecting wire 143, and the circuit board 11 is correspondingly provided with an avoidance through hole 113 for the conductive wire 1431 to pass through, and the other end of the conductive spring 145 extends outward from the circuit board 11, further combined with Fig.18 As shown, in the embodiment of the lamp panel structure 1 having the conductive spring sheet 145, when the lamp panel structure 1 of the present solution is installed in the light bulb, the conductive spring sheet 145 forms contact with the inner wall of the lamp holder housing 2 (such as Fig. 22As shown), the conductive spring sheet 145 (such as a copper sheet, an iron sheet or other conductive alloys, etc.) has a certain elastic force, and therefore, it can improve the stability of the light-emitting module 12 of the bulb being connected to the mains, and avoid power failure due to too little contact surface or unstable contact spacing between the lamp board structure 1 and the lamp holder shell 2.

[0102] In the structure of this embodiment, the implementation form of the first conductive member 13 is the same as that of Embodiment 3. The first conductive member 13 is disposed in the middle of the second surface 112 and connected to the first end of the light emitting module 12 .

[0103] Combination Fig.23 As shown, as another possible implementation of the second conductive member 14, in order to further improve the conductive contact surface between the lamp board structure 1 and the lamp holder shell of the light bulb, the second conductive member 14 may also include a conductive layer 146 arranged on the second surface 112 of the circuit board 11, and the conductive layer 146 is in an annular structure, that is, the conductive layer 146 with an annular structure covers one end of the conductive spring 145, so as to improve the contact reliability between the second conductive member 14 and the inside of the lamp holder shell 2 when the lamp board structure 1 is installed.

[0104] When the lamp panel structure 1 of this embodiment is installed in a light bulb, its installation method is substantially the same as that of Embodiment 2, which will not be described in detail here. At the same time, the numbers not mentioned in the drawings combined with the present embodiment are substantially the same as those of Embodiment 2, which will not be described in detail here.

[0105] The above descriptions are only some embodiments of the present invention, and do not limit the protection scope of the present invention. Any equivalent device or equivalent process transformation made using the contents of the present invention specification and drawings, or directly or indirectly used in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A light panel structure, characterized in that: It includes a circuit board, a light-emitting module, a first conductive member and a second conductive member, the circuit board has a first surface and a second surface opposite to each other, the light-emitting module is arranged on the first surface, the first conductive member and the second conductive member are both arranged on the second surface of the circuit board and do not contact each other, the light-emitting module has a first end and a second end for connecting to a power supply, the first end is electrically connected to the first conductive member, and the second end is electrically connected to the second conductive member.

2. The light panel structure according to claim 1, characterized in that: The first conductive member includes a conductive column that is threaded or riveted to the middle of the second surface of the circuit board, and the conductive column is electrically connected to the first end of the light emitting module.

3. The light panel structure according to claim 1, characterized in that: The first conductive member includes a first conductive layer disposed on the middle portion of the second surface; the first conductive layer is electrically connected to the first end of the light emitting module.

4. The light panel structure according to claim 3, characterized in that: The second conductive member includes a second conductive layer disposed on the second surface; the second conductive layer is electrically connected to the second end of the light emitting module; The second conductive layer is a ring-shaped closed structure or a non-ring-shaped closed structure; When the second conductive layer is an annular closed structure, it surrounds the first conductive member, and an electrical insulation region is provided between the first conductive member 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 electrical insulation region is provided between the outer edge of the second conductive layer and the outer edge of the circuit board; When the second conductive layer is a non-annular closed structure, the remaining area of ​​the second surface outside the area where the first conductive layer and the second conductive layer are set is an electrically insulating area, and the portion of the second conductive layer close to the outer edge of the circuit board extends outward to the outer edge of the circuit board or leaves a gap between the portion and the outer edge of the circuit board.

5. The light panel structure according to claim 2 or 3, characterized in that: The second conductive member includes a connecting wire, one end of which is divided into at least one conductive wire, and the ends of at least one conductive wire respectively pass through the circuit board and extend to the second surface of the circuit board, and the circuit board is correspondingly provided with an avoidance through hole for the conductive wire to pass through; the other end of the connecting wire is electrically connected to the second end of the optical module.

6. The light panel structure according to claim 5, characterized in that: The second conductive member further comprises: The number of the conductive sheets corresponds to the number of the conductive lines. The conductive sheets are arranged on the second surface and connected to the corresponding conductive lines.

7. The light panel structure according to claim 5, characterized in that: The second conductive member further comprises: The number of the conductive springs corresponds to the conductive wires one by one. One end of the conductive spring is arranged on the edge of the second surface of the circuit board and connected to the corresponding conductive wire. The other end of the conductive spring extends out of the circuit board.

8. The light panel structure according to any one of claims 1 to 3, characterized in that: The light emitting module is powered by the mains, the first conductive member is used to connect to the live wire of the mains, and the second conductive member is used to connect to the neutral wire of the mains; the light emitting module is an LED light emitting module.

9. A light bulb, characterized in that: It comprises the lamp panel structure according to any one of claims 1 to 8, and the lamp further comprises: The lamp holder shell is a cylindrical shell structure with two ends open. The lamp holder shell is formed of a conductive material and is used to connect with the lamp holder. One end of the lamp holder shell is a constricted structure. A connecting piece, made of insulating material, is arranged on the necking structure of the lamp holder housing, and has a through hole penetrating through both ends of the connecting piece; A conductive ring is a conductive member, which is arranged on the second surface of the circuit board and is in contact with the second conductive member. The outer circumference of the conductive ring is provided with at least one extension piece extending outward, and the extension piece is used to be in contact with the inner wall of the cylindrical structure of the lamp holder housing; the conductive ring is insulated from the first conductive member; The circuit board of the lamp board structure is arranged in the tubular structure of the lamp holder shell, the end of the first conductive member on the circuit board away from the circuit board passes through the through hole on the connecting member and the shrinkage structure of the lamp holder shell in sequence, and is exposed outside the lamp holder shell, and there is an insulating gap between the first conductive member and the lamp holder shell, which is used to connect the live wire of the mains; the conductive ring on the second surface of the circuit board is in contact with the inner side wall of the lamp holder shell, so that the second conductive member is indirectly electrically connected to the lamp holder shell, and the lamp holder shell is used to connect the neutral wire of the mains; The lampshade is a hollow structure with one end open, and the open end is connected to the lamp holder housing.

10. The light bulb according to claim 9, characterized in that The connecting piece is made of elastic insulating material, one end surface of which is attached to the second surface of the circuit board and partially covers the conductive ring; the other end surface of the connecting piece is provided with a protrusion corresponding to the constriction structure of the lamp holder housing, the protrusion partially passes through the constriction structure of the lamp holder housing, and the through hole passes through the protrusion; The inner wall of the lamp holder shell is provided with an internal thread structure, and 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 threadedly fixedly connected to the lamp holder shell through the external thread structure, and the circuit board of the lamp board structure is constrained and fixed between the shrinkage structure of the lamp holder shell and the open end of the lamp shade.

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