Waterproof light bulb

Abstract

The present invention discloses a waterproof light bulb, comprising: a lampshade and a light-emitting circuit board arranged in the lampshade, and a waterproof silicone pad and a lamp holder arranged in sequence at the open end of the lampshade; wherein, the present scheme further comprises: a self-locking member, a first conductive member and a second conductive member, the self-locking member being fixed on the live wire access port of the light-emitting circuit board; the first conductive member being a rod-shaped structure, one end of which is plugged and fixed with the self-locking member, and the other end of which vertically passes through the waterproof silicone pad and is exposed outside the waterproof silicone pad, the waterproof silicone pad being provided with a through hole for the first conductive member to pass through, the through hole and the part of the first conductive member passing through the through hole being an interference fit, the other end of the lamp holder corresponding to the first conductive member being provided with an avoidance hole, the inner edge of the avoidance hole being spaced apart from the other end of the first conductive member; the second conductive member being made of conductive wire material, one end of which is fixedly connected to the neutral wire access port of the light-emitting circuit board, and the other end of which is led out of the lampshade and conductively connected to the lamp holder, the present scheme having good waterproof performance and being practical and reliable.

Description

Technical Field

[0001] The invention relates to the field of lamps, and in particular to a waterproof light bulb. Background Art

[0002] Light bulbs are commonly used for daily lighting and background rendering and are widely used in various scenarios. Waterproofness is one of the important factors that restrict the service life of light bulbs. When light bulbs are used outdoors, if it rains or is highly humid, they will inevitably be exposed to rain or water vapor infiltration, which will seriously affect the service life of the light bulbs and may even cause them to burst.

[0003] The main solution to prevent water from entering the light bulb is to install a lampshade on the light bulb to prevent rain from directly dripping on the light bulb. However, this method will restrict the use scenarios of the light bulb to a certain extent. Therefore, how to improve the self-waterproof performance of the light bulb is a topic with positive practical significance. Summary of the invention

[0004] In view of this, an object of the present invention is to provide a waterproof light bulb which has good waterproof performance, is practical and reliable, has low cost and is easy to install.

[0005] In order to achieve the above technical objectives, the technical solution adopted by the present invention is:

[0006] A waterproof light bulb, comprising:

[0007] The lampshade is a hollow structure with one end open and a light source installation cavity inside;

[0008] A light-emitting circuit board is arranged in the light source installation cavity of the lampshade, one end of which has a neutral line access port and a live line access port for connecting to a power supply, and the other end of which has a light-emitting member;

[0009] A waterproof silicone pad is connected to the open end of the lampshade and is fixedly connected to the light-emitting circuit board to fix the light-emitting circuit board in the light source installation cavity;

[0010] The lamp holder is sleeved on the outer wall of the open end of the lampshade, and the waterproof silicone pad is fixed on the lampshade;

[0011] It also includes:

[0012] A self-locking member fixed to the live wire access port of the light-emitting circuit board;

[0013] The first conductive member is a rod-shaped structure, one end of which is plugged and fixed with the self-locking member, and the other end of which vertically passes through the waterproof silicone pad and is exposed outside the waterproof silicone pad. The waterproof silicone pad is correspondingly provided with a through hole for the first conductive member to pass through, and the through hole and the part of the first conductive member passing through the through hole are interference fit. The lamp holder is provided with an avoidance hole corresponding to the other end of the first conductive member, and the inner edge of the avoidance hole is spaced from the other end of the first conductive member;

[0014] The second conductive member is made of conductive wire, one end of which is fixedly connected to the neutral line access port of the light-emitting circuit board, and the other end of which is led out of the lampshade and conductively connected to the lamp holder.

[0015] As a possible implementation, further, the self-locking member is a tubular structure made of conductive material, the outer side of which is fixedly connected to the live wire access port of the light-emitting circuit board, and one end of the first conductive member is plugged and fixed in the tubular structure of the self-locking member.

[0016] As a preferred embodiment, the self-locking member is preferably provided with an elastic tongue extending obliquely along a direction close to its axial center, and the portion of the first conductive member inserted into the self-locking member is provided with a retracted section, the retracted section is close to the end of the first conductive member inserted into the self-locking member, and the retracted section is locked with the elastic tongue.

[0017] As a possible implementation manner, further, the other end of the first conductive member is provided with a conductive portion having an arc-shaped structure.

[0018] As a possible implementation manner, further, the outer wall of the open end of the lampshade is provided with an external thread, the inner wall of the lamp holder is provided with an internal thread, and the lamp holder is threadedly sleeved on the outer wall of the open end of the lampshade via the internal thread.

[0019] As a possible implementation, further, the waterproof silicone pad includes:

[0020] The main body of the silicone pad is a columnar structure, one end of which is inserted into the inner side of the open end of the lampshade and is provided with a contoured slot adapted to the structure of one end of the light-emitting circuit board, and one end of the light-emitting circuit board is inserted into the contoured slot; the outer wall of the other end of the main body of the silicone pad is provided with an annular extension portion, and the annular extension portion is overlapped at the end of the open end of the lampshade.

[0021] As a preferred embodiment, preferably, a protrusion is provided at the center of the other end of the silicone pad body corresponding to the avoidance hole of the lamp holder, and the protrusion is partially higher than the avoidance hole. The other end of the first conductive part passes through the protrusion and is exposed outside the waterproof silicone pad.

[0022] As a preferred embodiment, the present solution also includes: an inner lens, which is arranged inside the lampshade, and one end of which is sleeved and fixed on the outer wall of the end where the silicone pad body is connected to the light-emitting circuit board, and the light-emitting circuit board is covered inside it.

[0023] As a possible implementation manner, further, the other end of the second conductive part is led out of the lampshade between the outer wall of the silicone pad body and the inner wall of the open end of the lampshade, and is led out of the lampshade through the gap between the inner wall of the lamp holder and the outer wall of the open end of the lampshade and is partially exposed outside the lamp holder.

[0024] As a possible implementation manner, further, the second conductive member is made of copper, iron or aluminum.

[0025] As a possible implementation mode, further, the light-emitting component is an LED lamp bead, and a pair of semicircular through holes are provided on the edge of the other end of the light-emitting circuit board, and a conductive film is provided in each of the pair of semicircular through holes. The conductive films in the pair of semicircular through holes are respectively connected to the power supply output ends of the light-emitting circuit board, and the conductive films in the pair of semicircular through holes correspond one by one to the positive and negative pins of the LED lamp bead and are conductively connected.

[0026] By adopting the above-mentioned technical scheme, the present invention has the following beneficial effects compared with the prior art: this scheme is based on the background that the traditional lamp holder has poor waterproof effect, and by arranging a waterproof silicone pad at the open end of the lampshade, and then locking it with the lamp holder, the cooperation between the lamp holder and the lampshade can greatly improve the sealing performance, and further, a self-locking part is arranged on the light-emitting circuit board to connect the live wire connector (i.e., the first conductive part) of the bulb, and the first conductive part is interference fit through the waterproof silicone pad, so that the live wire access port of the light-emitting circuit board can have a higher waterproof sealing performance, and at the same time, the purpose of relatively tightening the light-emitting circuit board and the lamp holder is achieved, and the conductive part is arranged at the end of the first conductive part passing through the waterproof silicone pad, which can avoid the traditional soldering processing link, thereby improving the simplicity and convenience of assembly and the installation efficiency, and at the same time, it can also take into account the advantage of the bulb having good waterproof performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the embodiments of the present invention 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 present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0028] Figure 1 This is a schematic diagram of a simplified implementation structure of Example 1 of the present invention;

[0029] Figure 2 This is a schematic exploded diagram of a simplified implementation structure of Example 1 of the present invention;

[0030] Figure 3 This is a schematic cross-sectional view of the implementation structure of Example 1 of the present invention;

[0031] Figure 4 for Figure 3 A schematic diagram of the enlarged local structure at point A in the middle;

[0032] Figure 5 for Figure 3The structure shown is a schematic diagram of a simplified cross-section structure after the lamp holder is removed;

[0033] Figure 6 A schematic diagram of a circuit implementation structure of Embodiment 1 of the present invention;

[0034] Figure 7 This is a schematic cross-sectional view of the implementation structure of Example 2 of the present invention;

[0035] Figure 8 This is one of the brief schematic diagrams of Embodiment 3 of the present invention, which mainly shows the local layout structure of the light-emitting circuit board;

[0036] Fig. 9 This is the second brief schematic diagram of Embodiment 3 of the present invention, which mainly shows the local layout structure of the light-emitting circuit board. DETAILED DESCRIPTION

[0037] The present invention will be further described in detail below in conjunction with the accompanying drawings and examples. It is particularly noted that the following examples are only used to illustrate the present invention, but are not intended to limit the scope of the present invention. Similarly, the following examples are only partial embodiments of the present invention rather than all embodiments, and all other embodiments obtained by those of ordinary skill in the art without creative work are within the scope of protection of the present invention.

[0038] Example 1

[0039] like Figures 1 to 5 As shown in one, this embodiment is a waterproof light bulb, comprising:

[0040] The lampshade 1 is a hollow structure with one end open, and has a light source installation cavity 12 inside;

[0041] The light-emitting circuit board 2 is arranged in the light source installation cavity 12 of the lampshade 1, and has a neutral line access port 21 and a live line access port 22 for accessing the power supply at one end, and a light-emitting member 23 at the other end;

[0042] The waterproof silicone pad 3 is connected to the open end of the lampshade 1 and is fixedly connected to the light-emitting circuit board 2 to fix the light-emitting circuit board 2 in the light source installation cavity 12;

[0043] The lamp holder 4 is sleeved on the outer wall of the open end of the lampshade 1, and the waterproof silicone pad 3 is fixed on the lampshade 1;

[0044] This program also includes:

[0045] A self-locking member 5, fixed on the live wire access port 22 of the light-emitting circuit board 2;

[0046] The first conductive member 6 is a rod-shaped structure, one end of which is plugged and fixed with the self-locking member 5, and the other end of which vertically passes through the waterproof silicone pad 3 and is exposed outside the waterproof silicone pad 3. The waterproof silicone pad 3 is correspondingly provided with a through hole 31 for the first conductive member 6 to pass through, and the through hole 31 and the part of the first conductive member 6 passing through the through hole 31 are interference fit. The lamp holder 4 is provided with an avoidance hole 41 at the other end corresponding to the first conductive member 6, and the inner edge of the avoidance hole 41 is spaced from the other end of the first conductive member 6, and its main purpose is to avoid interference between the neutral and live wires;

[0047] The second conductive member 7 is made of conductive wire, one end of which is fixedly connected to the neutral line access port 21 of the light-emitting circuit board 2 , and the other end of which is led out of the lampshade 1 and conductively connected to the lamp holder 4 .

[0048] Among them, as a possible implementation mode, further, the self-locking member 5 described in this embodiment is a tubular structure made of conductive material, the outer side of which is fixedly connected to the live wire access port 22 of the light-emitting circuit board 2, and one end of the first conductive member 6 is plugged and fixed in the tubular structure of the self-locking member 5, and as a specific structural method, preferably, the self-locking member 5 is provided with an elastic tongue 51 extending obliquely along a direction close to its axial center, and the part of the first conductive member 6 that penetrates into the self-locking member 5 is provided with a retracted section 61, and the retracted section 61 is close to the end of the first conductive member 6 that penetrates into the self-locking member 5, and the retracted section 61 is locked with the elastic tongue 51.

[0049] In the present embodiment, the other end of the first conductive member 6 is mainly used to connect to the live wire. Therefore, in order to avoid the problem of poor contact, as a possible implementation mode, further, the other end of the first conductive member 6 is provided with a conductive portion 62 with an arc-shaped structure. The main function of the conductive portion 62 is to increase the contact area to avoid the problem of poor contact when the bulb is in use.

[0050] In order to improve the assembly effect and facilitate assembly, as a possible implementation mode, further, the outer wall of the open end of the lampshade 1 described in this embodiment is provided with an external thread 11, and the inner wall of the lamp holder 4 is provided with an internal thread 42, and the lamp holder 4 is threadedly connected to the outer wall of the open end of the lampshade 1 through the internal thread 42.

[0051] Since the main purpose of the present scheme is to provide a bulb with good waterproof effect, therefore, as a possible implementation mode, further, the main structure of the waterproof silicone pad 3 of the present scheme is columnar, one end of which is inserted into the inner side of the open end of the lampshade 1, and is provided with a contoured slot 32 adapted to the structure of one end of the light-emitting circuit board 2, and one end of the light-emitting circuit board 2 is inserted into the contoured slot 32; the outer wall of the other end of the silicone pad body is provided with an annular extension portion 33, and the annular extension portion 33 is overlapped at the end of the open end of the lampshade 1.

[0052] In order to prevent the conductive part 62 of the first conductive component 6 from shifting during assembly or installation, which would cause a short circuit between it and the lamp holder 4, as a preferred implementation scheme, a protrusion 34 is preferably provided at the center of the other end of the silicone pad body of the waterproof silicone pad 3 corresponding to the avoidance hole 41 of the lamp holder 4, and the protrusion 34 is partially higher than the avoidance hole 41, and the other end of the first conductive component 6 passes through the protrusion 34 and is exposed outside the waterproof silicone pad 3.

[0053] As a possible implementation mode, further, the second conductive member 7 of the present invention can be formed of copper, iron or aluminum, and as a possible wiring mode of the second conductive member 7, further, the other end of the second conductive member 7 of the present invention is led out of the lampshade 1 between the outer wall of the silicone pad body of the waterproof silicone pad 3 and the inner wall of the open end of the lampshade 1, and is led out of the lampshade 4 through the gap between the inner wall of the lamp holder 4 and the outer wall of the open end of the lampshade 1 and is partially exposed outside the lamp holder 4. Since the lamp holder 4 and the outer wall of the open end of the lampshade 1 are threadedly connected in the present embodiment, an avoidance groove 13 can be provided on the outer wall of the open end of the lampshade 1 to lead out the second conductive member 7. The end of the second conductive member 7 is exposed outside the lamp holder 4 and is fixed to the lamp holder 4 to achieve conductive connection, so as to avoid the problem of poor contact between the second conductive member 7 and the lamp holder 4. At the same time, in order to improve the installation reliability of the lamp holder 4 and the lamp shade 1, the lamp holder 4 can be firstly glued on its inner wall, and then threadedly sleeved on the external thread 11 at the open end of the lamp shade 1 to form a sealing glue layer 14 to achieve sealed installation. Since the waterproof silicone pad 3 itself is made of silicone material, it has a certain elasticity. Therefore, when the lamp holder 4 is threadedly sleeved on the lamp shade 1, it will squeeze the annular extension portion 33 of the waterproof silicone pad 3 to a certain extent, so as to achieve the sealed fit between the lamp holder 4 and the waterproof silicone pad 3.

[0054] refer to Figure 6 As a circuit structure of the light-emitting circuit board 2 mentioned in this embodiment, it specifically includes resistors R1, R2, R3, a light-emitting diode LED, and a rectifier bridge MB6S, wherein the first pin of the rectifier bridge MB6S is connected to one end of the resistor R1, and the other end of the resistor R1 is connected to the live wire terminal L of the external power supply. In this solution, the self-locking member is connected to the other end of the resistor R1 to facilitate its connection to the live wire; in addition, the third pin of the rectifier bridge MB6S is connected to the neutral wire terminal N of the external power supply, the second pin of the rectifier bridge MB6S is connected in series with the resistor R2 and the resistor R3 in sequence and connected to the positive electrode of the light-emitting diode LED, and the fourth pin of the rectifier bridge MB6S is connected to the negative electrode of the light-emitting diode LED.

[0055] Example 2

[0056] like Figure 7As shown, this embodiment is substantially the same as embodiment 1, except that, in this embodiment, as a preferred embodiment, preferably, this embodiment further includes: an inner lens 8, which is disposed in the lampshade 1, and one end of which is sleeved and fixed on the outer wall of the end portion where the silicone pad body of the waterproof silicone pad 3 is connected to the light-emitting circuit board 2, and the light-emitting circuit board 2 is covered therein.

[0057] The rest of the present embodiment is not numbered and is substantially the same as that of the first embodiment, so it will not be described in detail.

[0058] Example 3

[0059] like Figure 8 or Fig. 9 As shown, this embodiment is substantially the same as embodiment 1, except that, in this embodiment, as a possible implementation mode, further, the light-emitting component 23 is an LED lamp bead, and a pair of semicircular through holes 24 are provided at the other end edge of the light-emitting circuit board 2, and a conductive film 25 is provided in each of the pair of semicircular through holes 24, and the conductive films 25 in the pair of semicircular through holes 24 are respectively connected to the power supply output end (specifically the positive and negative poles of the power supply output end) of the light-emitting circuit board 2, and the conductive films 25 in the pair of semicircular through holes 24 correspond one-to-one to the positive and negative pins of the LED lamp bead 23 and are conductively connected.

[0060] The rest of the present embodiment is not numbered and is substantially the same as that of the first embodiment, so it will not be described in detail.

[0061] The above descriptions are only some embodiments of the present invention, and are not intended to 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 applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A waterproof light bulb, comprising: The lampshade is a hollow structure with one end open and a light source installation cavity inside; A light-emitting circuit board is arranged in the light source installation cavity of the lampshade, one end of which has a neutral line access port and a live line access port for connecting to a power supply, and the other end of which has a light-emitting member; A waterproof silicone pad is connected to the open end of the lampshade and is fixedly connected to the light-emitting circuit board to fix the light-emitting circuit board in the light source installation cavity; The lamp holder is sleeved on the outer wall of the open end of the lampshade, and the waterproof silicone pad is fixed on the lampshade; It is characterized in that it also includes: A self-locking member fixed to the live wire access port of the light-emitting circuit board; The first conductive member is a rod-shaped structure, one end of which is plugged and fixed with the self-locking member, and the other end of which vertically passes through the waterproof silicone pad and is exposed outside the waterproof silicone pad. The waterproof silicone pad is correspondingly provided with a through hole for the first conductive member to pass through, and the through hole and the part of the first conductive member passing through the through hole are interference fit. The lamp holder is provided with an avoidance hole corresponding to the other end of the first conductive member, and the inner edge of the avoidance hole is spaced from the other end of the first conductive member; The second conductive member is made of conductive wire, one end of which is fixedly connected to the neutral line access port of the light-emitting circuit board, and the other end of which is led out of the lampshade and conductively connected to the lamp holder; Wherein, the self-locking member is a tubular structure made of conductive material, the outer side of which is fixedly connected to the live wire access port of the light-emitting circuit board, and one end of the first conductive member is plugged and fixed in the tubular structure of the self-locking member; The self-locking member is provided with an elastic tongue extending obliquely along a direction close to the axis thereof, and the portion of the first conductive member inserted into the self-locking member is provided with an inwardly contracted section, the inwardly contracted section is close to the end of the first conductive member inserted into the self-locking member, and the inwardly contracted section is locked with the elastic tongue; The other end of the first conductive member is provided with a conductive portion in an arc-shaped structure; The waterproof silicone pad comprises: The main body of the silicone pad is a columnar structure, one end of which is inserted into the inner side of the open end of the lampshade, and is provided with a profiled slot adapted to the structure of one end of the light-emitting circuit board, and one end of the light-emitting circuit board is inserted into the profiled slot; the outer wall of the other end of the main body of the silicone pad is provided with an annular extension portion, and the annular extension portion is overlapped with the end of the open end of the lampshade; A protrusion is provided at the center of the other end of the silicone pad body corresponding to the avoidance hole of the lamp holder, and the protrusion is partially higher than the avoidance hole. The other end of the first conductive part passes through the protrusion and is exposed outside the waterproof silicone pad.

2. The waterproof light bulb according to claim 1, characterized in that: The outer wall of the open end of the lampshade is provided with an external thread, the inner wall of the lamp holder is provided with an internal thread, and the lamp holder is threadably sleeved on the outer wall of the open end of the lampshade via the internal thread.

3. The waterproof light bulb according to claim 1, characterized in that: The other end of the second conductive member is led out of the lampshade through the outer wall of the silicone pad body and the inner wall of the open end of the lampshade, and is led out of the lampshade through the gap between the inner wall of the lamp holder and the outer wall of the open end of the lampshade and is partially exposed outside the lamp holder.

4. The waterproof light bulb according to claim 1, characterized in that: It also includes: The inner lens is arranged in the lampshade, and one end of the inner lens is sleeved and fixed on the outer wall of the end portion where the silica gel pad body is connected with the light-emitting circuit board, and the light-emitting circuit board is covered inside the inner lens.

5. The waterproof light bulb according to claim 1, characterized in that: The light-emitting component is an LED lamp bead, and a pair of semicircular through holes are provided at the other end edge of the light-emitting circuit board. Conductive films are provided in the pair of semicircular through holes. The conductive films in the pair of semicircular through holes are respectively connected to the power supply output ends of the light-emitting circuit board, and the conductive films in the pair of semicircular through holes correspond one by one to the positive and negative pins of the LED lamp bead and are conductively connected.

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