CN215862944U - Double-color bulb - Google Patents

Abstract

The application relates to a bicolor bulb, which comprises a core column and a connecting bracket arranged on the core column; the lamp filament comprises a main filament and an auxiliary filament, wherein the main filament and the auxiliary filament are electrically connected with a connecting support, and when the current direction passed by the connecting support is forward or reverse, one of the main filament and the auxiliary filament is lightened. This application has the effect that makes double-colored bulb can send colored light.

Description

Double-color bulb

Technical Field

The application relates to the field of optical technology, in particular to a double-color bulb.

Background

With the rapid development of social economy, the requirements of people on the living standard are higher and higher, many people like the light effect brought by the lamp string, and the LED double-color bulb is used as an important component in the lamp string, so that the function of the LED double-color bulb is more prominent.

In the related art, an LED bicolor bulb includes a light-transmitting casing, a lamp cap, a stem, a connecting bracket, and an LED lamp post, the light-transmitting casing has an inner cavity for accommodating components, and the light-transmitting casing further has an opening for communicating the inner cavity with the outside; the lamp holder is fixedly connected to one end of the light-transmitting shell, which is positioned at the opening, and is used for covering the opening of the light-transmitting shell; the core column is fixedly arranged on the inner wall of the opening of the light-transmitting shell and is fixedly connected with the connecting support; one end of the connecting support is electrically connected with the lamp holder, the other end of the connecting support is fixedly connected with the LED lamp post, and the LED lamp post is electrically connected with the connecting support.

In view of the above-mentioned related technologies, there is a defect that the dual-color bulb can only emit monochromatic light because the dual-color bulb has only one LED lamp post, and thus the dual-color bulb cannot emit colored light.

SUMMERY OF THE UTILITY MODEL

In order to enable a bi-color light bulb to emit colored light, the present application provides a bi-color light bulb.

The application provides a double-colored bulb adopts following technical scheme:

a bicolor bulb comprises a core column and a connecting bracket arranged on the core column; the filament lamp further comprises a main filament and an auxiliary filament, wherein the main filament and the auxiliary filament are electrically connected with the connecting support, and when the current flowing into the connecting support is in a forward direction or a reverse direction, one of the main filament and the auxiliary filament is lightened.

By adopting the technical scheme, when the key point is to light the bicolor bulb, positive current or negative current can respectively flow into the connecting support through the external control module, wherein when the positive current passes through, the main filament emits light, when the negative current passes through, the auxiliary filament emits light, and because the colors of the light emitted by the main filament and the auxiliary filament are different, when the frequency of the positive current and the negative current which sequentially flow into the connecting support is a certain value, the light emitted by the main filament, the light emitted by the auxiliary filament and the mixed light emitted by the main filament and the auxiliary filament can be observed by human eyes, so the light emitted by the bicolor bulb can be pseudo-color light, thereby achieving the purpose of enabling the bicolor bulb to emit colored light, compared with the mode that the LED tricolor lamp emits colored light, the design mode is adopted, the double-color bulb can enable the emitted light to achieve the effect close to color without adding complex control elements, so that the cost of the double-color bulb can be reduced.

Preferably, the substrate inside the main filament and the substrate inside the auxiliary filament are integrally connected.

Through adopting above-mentioned technical scheme, when the equipment double-colored bulb, can lay the circuit of main filament and assistance filament on the base plate earlier, fix the light source chip of main filament and assistance filament on the base plate next, and make the light source chip be connected with respective circuit, then encapsulate through the fluorescent glue, fix two pins on the base plate on the linking bridge at last again can, wherein need pass through the welded when fixing the linking bridge with the base plate, so compare in the mode that two filament respective base plates set up separately, this kind of design, can be more convenient when welding the filament on the linking bridge, thereby be convenient for producing this double-colored bulb.

Preferably, the substrate inside the main filament and the substrate inside the auxiliary filament are arranged discontinuously.

Through adopting above-mentioned technical scheme, because of laid the circuit on the base plate, so compare in the integrated mode on one of base plate of two filaments, this kind of design, when the circuit of main filament or supplementary filament appears damaging, only need appear damaging correspond the filament follow linking bridge dismantle down can to make each component of double-colored bulb can obtain more abundant utilization.

Preferably, the connecting support comprises a first connecting part and a second connecting part, the first connecting part and the second connecting part are both in an L-shaped bent shape, one end of the first connecting part is arranged on the core column in a penetrating manner, the bent inner side of the first connecting part faces the core column, and one end of the first connecting part, which is far away from the core column, is used for fixedly connecting one pin of the filament; one end of the second connecting part is arranged on the core column in a penetrating mode, the other end of the second connecting part is located between one end, away from the core column, of the first connecting part and the core column, and the other end of the second connecting part is far away from one end, away from the core column, of the second connecting part and fixedly connected with another pin of the filament.

By adopting the technical scheme, because the first connecting part and the second connecting part are both in L-shaped bent shapes, therefore, a region for accommodating the filament is formed between the end of the first connecting part far from the stem and the end of the second connecting part far from the stem, compared with the design mode that the first connecting part and the second connecting part extend linearly, when the two pins of the filament are respectively fixed on the first connecting part and the second connecting part, the filament and the connecting bracket are not easy to interfere in the space position, so that the situation that the pins cannot be abutted against the connecting support due to the blockage between the filament and the connecting support is not easy to occur, the filament can be conveniently fixed on the connecting support, the occupied space of the connecting support is smaller, therefore, the structure between the connecting support and the lamp filament is simpler, and further the components of the double-color bulb can be conveniently assembled in production.

Preferably, still include the printing opacity casing, the printing opacity casing is including the intercommunication entry that is used for holding the inner chamber of filament and is used for making inner chamber and outside to be linked together, the stem sets up on the inner wall of intercommunication entry to it is protruding to be provided with the joint on the outer wall of stem, and the stem passes through the joint protruding inner wall with the intercommunication entry and expands tightly to be connected moreover.

Through adopting above-mentioned technical scheme, because of the bellied setting of joint, then be the tight complex connected mode that expands between stem and the printing opacity casing, so when the installation, only need insert the stem and communicate in the entry, just reach the purpose of installing the stem on the printing opacity casing to be convenient for assemble the components and parts of double-colored bulb in production.

Preferably, the main filament and the auxiliary filament are both provided with a protection member inside, and the protection member is used for reducing the voltage of the current flowing into the protection member.

Through adopting above-mentioned technical scheme, compare in the mode of installing protection resistance on the linking bridge in addition, this kind of design alright fix the protection piece on the base plate when making the filament, then the rethread fluorescent glue make protection piece and light source chip encapsulation on the base plate can, so when subsequent equipment double-colored bulb, can reduce this one step of operation on the linking bridge with the protection piece welding to be convenient for assemble double-colored bulb.

Preferably, a waterproof layer for plugging the communication inlet is arranged on one side, far away from the inner cavity, of the communication inlet.

Through adopting above-mentioned technical scheme, because of being the tight complex mode of expanding between stem and the intercommunication entry, so can have the gap between the inner wall of stem and intercommunication entry, the leakproofness between stem and the printing opacity casing can be promoted in the setting of event waterproof layer to can make the equipment of being convenient for of double-colored bulb, also make the holistic leakproofness of double-colored bulb difficult weakening by a wide margin.

Preferably, the clamping protrusion extends in the direction parallel to the communication direction of the communication inlet, and the thickness of the clamping protrusion close to one end of the inner cavity in the direction of the diameter of the communication inlet is smaller than the thickness of the clamping protrusion far away from one end of the inner cavity in the direction of the diameter of the communication inlet.

Through adopting above-mentioned technical scheme, inserting the stem the in-process that feeds through the entry, the tight degree of expanding between stem and the intercommunication entry inner wall can strengthen gradually, then on the one hand, difficult the condition that can't insert the intercommunication entry because of the bellied setting of joint appears in the stem, on the other hand, also make the fastening degree of being connected between stem and the intercommunication entry can not weakened by a wide margin to make the stem be convenient for install on the printing opacity casing, also make the compactness of being connected between stem and the printing opacity casing obtain keeping.

Preferably, the stem is kept away from the one end of inner chamber is provided with and separates the fender sand grip, and separate the edge that keeps off the sand grip and connect at the stem terminal surface, moreover separate and keep off sand grip and printing opacity casing and be located the intercommunication entry and keep away from the terminal surface formation of inner chamber one end and separate and keep off the butt.

Through adopting above-mentioned technical scheme, on the one hand, because of the setting that separates the fender sand grip, difficult because of the excessive stem that appears breaks away from the intercommunication entry hard when the installation, then get into the condition in the inner chamber, thereby the error operation when helping reducing the installation, on the other hand, be located the terminal surface butt that the inner chamber one end was kept away from to the intercommunication entry because of separating fender sand grip and printing opacity casing, so separate the sand grip and can play certain effect of sheltering from to the gap that forms between stem and the intercommunication entry inner wall, then the leakproofness of double-colored bulb obtains better promotion, thereby help promoting the quality of double-colored bulb.

Preferably, the blocking convex strips extend along the edge of the end face of the core column, the blocking convex strips are provided with a plurality of blocking convex strips, and a plurality of detaching notches are formed between the blocking convex strips.

Through adopting above-mentioned technical scheme, when maintaining the bicolor bulb, need pull down the stem from the intercommunication entry, and when installing on the printing opacity casing because of the stem, separate and keep off the terminal surface butt that the sand grip can be located the intercommunication entry and keep away from inner chamber one end with the printing opacity casing, so dismantle the setting of breach, make outside instrument can insert in the gap between stem and the intercommunication entry from dismantling the breach, and with this exert the effort that makes to separate and keep off sand grip and printing opacity casing separation, thereby be convenient for pull down the stem from the printing opacity casing.

In summary, the present application includes at least one of the following beneficial technical effects:

1. through the arrangement of the main filament, the auxiliary filament and the light-emitting mode between the two filaments, on one hand, when the frequency of the positive current and the negative current flowing into the connecting support in sequence is a certain value, the light rays emitted by the main filament and the auxiliary filament which are observed by human eyes can be light rays with a pseudo-color effect, so that the aim of enabling the double-color bulb to emit colored light rays is achieved, and on the other hand, compared with the mode of emitting colored light rays by an LED (light-emitting diode) tri-color lamp, the design mode can enable the emitted light rays to achieve an effect close to color without adding a complex control element, so that the cost of the double-color bulb can be reduced;

2. by the mode that the substrate inside the main filament and the substrate inside the auxiliary filament are integrally and fixedly connected, compared with the mode that the respective substrates of the two filaments are separately arranged, the design mode is more convenient when the filaments are welded on the connecting support, so that the double-color bulb is convenient to assemble;

3. through the protruding thickness that is close to inner chamber one end along the intercommunication entry diameter direction of joint be less than the setting mode that self keeps away from inner chamber one end along the thickness of intercommunication entry diameter direction, on the one hand, be difficult for appearing the condition that the stem can't insert in the intercommunication entry because of the bellied setting of joint, on the other hand, also make the stem and communicate the fastening degree of being connected between the entry can not weakened by a wide margin, thereby make the stem be convenient for install on the printing opacity casing, also make the compactness of being connected between stem and the printing opacity casing obtain keeping.

Drawings

Fig. 1 is a schematic structural view of a two-color light bulb in embodiment 1 of the present application.

Fig. 2 is a schematic diagram of a specific structure of a filament according to an embodiment of the present application.

Fig. 3 is a schematic diagram showing an arrangement manner between a main filament and an auxiliary filament in embodiment 2 of the present application.

Description of reference numerals: 1. a stem; 11. clamping the bulges; 12. barrier ribs; 2. connecting a bracket; 21. a first connection portion; 22. a second connecting portion; 3. a main filament; 31. a substrate; 32. a light source chip; 33. fluorescent glue; 34. a protective member; 4. an auxiliary filament; 5. a light-transmissive housing; 51. an inner cavity; 52. the inlet is communicated; 6. a waterproof layer; 7. disassembling the notch; 8. a lamp cap; 9. and (7) a mounting area.

Detailed Description

The present application is described in further detail below with reference to figures 1-3.

The embodiment of the application discloses a bicolor bulb.

Example 1

Referring to fig. 1, the bicolor bulb includes a light-transmitting casing 5, a stem 1, a connecting support 2, a main filament 3, an auxiliary filament 4 and a lamp cap 8, specifically, the light-transmitting casing 5 includes an inner cavity 51 for accommodating components and a communication inlet 52 for communicating the inner cavity 51 with the outside, so that the components can be placed in the inner cavity 51 from the communication inlet 52; stem 1 is the cylinder shape and is the plastics material, and integrated into one piece has a plurality of joint archs 11 on the all sides outer wall of stem 1, wherein the protruding 11 length direction of joint is on a parallel with the axis direction of intercommunication entry 52, and a plurality of joint archs 11 evenly set up around the axis direction of stem 1, in this embodiment, stem 1 sets up in intercommunication entry 52 department, and stem 1 is connected for expanding tightly between the inner wall through joint arch 11 and intercommunication entry 52, thereby just reach and fix the purpose on printing opacity casing 5 with stem 1.

Referring to fig. 1, in order to facilitate inserting the stem 1 into the communication inlet 52, but not to weaken the connection tightness between the stem 1 and the light-transmitting casing 5, in the present embodiment, the thickness of the end of the clamping protrusion 11 close to the inner cavity 51 along the diameter direction of the communication inlet 52 is smaller than the thickness of the end of the clamping protrusion far from the inner cavity 51 along the diameter direction of the communication inlet 52, so that the expansion degree between the inner walls of the stem 1 and the communication inlet 52 is gradually strengthened in the process of inserting the stem 1 into the communication inlet 52, thereby even if the stem 1 is conveniently installed on the light-transmitting casing 5, the connection tightness between the stem 1 and the light-transmitting casing 5 is maintained.

Referring to fig. 1, in the present embodiment, a barrier rib 12 is integrally formed on one end of the stem 1 away from the inner cavity 51, and the barrier convex strip 12 is connected on the edge of the end face of the core column 1, and the barrier convex strip 12 extends along the edge of the end face of the core column 1 in an arc shape, wherein when the stem 1 is fixed at the communication inlet 52, the barrier ribs 12 will abut against the end surface of the light-transmitting casing 5 at the end of the communication inlet 52 far from the inner cavity 51, the barrier ribs 12 serve to prevent the stem 1 from being mistakenly inserted into the cavity 51 from the communication inlet 52, so that the error operation is not easy to occur when the bicolor bulb is assembled, and in addition, because the stem 1 and the communication inlet 52 are connected together in an expansion fit way, therefore, the barrier ribs 12 can also shield the gap between the stem 1 and the inner wall of the communication inlet 52 to a certain extent, and further can improve the sealing property between the light-transmitting shell 5 and the stem 1.

Referring to fig. 1, in the present embodiment, two barrier ribs 12 are provided, and the two barrier ribs 12 are uniformly distributed around the axial direction of the stem 1, and two detachment notches 7 are formed between the two barrier ribs 12, when the bicolor bulb is to be repaired, a tool such as a screwdriver is inserted into a gap between the stem 1 and the communication inlet 52 from the detachment notch 7, and then an acting force for separating the barrier ribs 12 from the light-transmitting shell 5 is applied by the tool such as the screwdriver, compared with a mode for applying a separating acting force to the gap between the barrier ribs 12 and the light-transmitting shell 5, the design mode makes the stem 1 more convenient to detach from the light-transmitting shell 5, thereby facilitating the repair of the bicolor bulb.

Referring to fig. 1, in this embodiment, after the stem 1 is installed on the light-transmitting shell 5, a sealant with waterproof performance is poured on the side of the communication inlet 52 away from the inner cavity 51, after the sealant is solidified, the light-transmitting shell 5 is fixed with the waterproof layer 6 on the side of the communication inlet 52 away from the inner cavity 51, so that under the combined action of the waterproof layer 6 and the barrier ribs 12, the sealing performance of the light-transmitting shell 5 at the communication inlet 52 can be better improved, thereby contributing to improving the quality of the whole two-color bulb.

Referring to fig. 1, the connection bracket 2 includes a first connection portion 21 and a second connection portion 22 that are bent in an L shape, wherein one end of the first connection portion 21 is fixedly disposed on the stem 1, the other end is located in an inner cavity 51 of the light-transmitting casing 5, a bent inner side of the first connection portion 21 faces the stem 1, and one end of the first connection portion 21, which is far away from the stem 1, is used for fixing one of the leads of the filament; one end of the second connecting portion 22 is fixedly inserted through the stem 1, the other end is located in the inner cavity 51 of the light-transmitting casing 5, and one end of the second connecting portion 22 away from the stem 1 is located between one end of the first connecting portion 21 away from the stem 1 and the stem 1, and the bent inner side of the second conductive portion faces both the stem 1 and the first connecting portion 21.

Referring to fig. 1, in this embodiment, the one end that stem 1 was kept away from to second connecting portion 22 supplies another pin of filament to fix, then first connecting portion 21 keeps away from stem 1 one end and second connecting portion 22 and just can form the installing zone 9 that holds the filament between keeping away from stem 1 one end, compare in the mode that first connecting portion 21 and second connecting portion 22 all are sharp extension shape, this kind of design, when welding the pin of filament on linking bridge 2, be difficult for taking place to block because of filament and linking bridge 2 and make the unable butt of pin of filament on linking bridge 2, then both make the filament be convenient for fix on linking bridge 2, also make the structure between linking bridge 2 and the filament more succinct, thereby be convenient for assemble each components and parts of double-colored bulb in production.

Referring to fig. 1, a main filament 3 and an auxiliary filament 4 are arranged side by side in a mounting region 9, and pins of the main filament 3 and the auxiliary filament 4 are welded to a first connecting portion 21 and a second connecting portion 22, respectively, in this embodiment, the main filament 3 and the auxiliary filament 4 both have light emitting diodes, wherein the light emitting diodes of the main filament 3 make the direction of current in the main filament 3 be that the first connecting portion 21 points to the second connecting portion 22, and the light emitting diodes in the auxiliary filament 4 make the direction of current in the auxiliary filament 4 be that the second connecting portion 22 points to the first connecting portion 21, so that when the direction of current flowing into a connecting support 2 is positive or negative, one of the main filament 3 and the auxiliary filament 4 is lighted, so that when the frequency of positive current and negative current flowing into the connecting support 2 in sequence is a certain value, light rays emitted by the main filament 3 and the auxiliary filament 4 observed by human eyes will be pseudo-color effect light rays, so that the purpose of making the bicolor bulb emit colored light is achieved.

Referring to fig. 1 and 2, since the main filament 3 and the auxiliary filament 4 only emit light with different colors and have the same internal structure, only the internal structure of the main filament 3 will be described in detail later, specifically, the main filament 3 includes a substrate 31, a light source chip 32 and a fluorescent glue 33, a circuit is laid on the substrate 31, and the substrate 31 is electrically connected to the connecting bracket 2 through its own pins; the plurality of light source chips 32 are arranged, and the light source chips 32 are adhered to the upper surface and the lower surface of the substrate 31, wherein the substrate 31 is also fixed with a protective member 34, the protective member 34 is usually a safety or resistance type fixing member, and is subjected to high-precision and heat-resistant treatment, and then is adhered to the substrate 31 synchronously with the light source chips 32 in a patch form, so that the connecting bracket 2 is not required to be separately provided with protective resistors, and the process and the cost can be reduced; the fluorescent glue 33 is coated on the substrate 31, and after the light source chip 32 and the protection member 34 are mounted, the fluorescent glue 33 encapsulates the substrate 31, so that a complete filament is manufactured.

Referring to fig. 1 and 2, in the present embodiment, the substrate 31 of the main filament 3 and the substrate 31 of the auxiliary filament 4 are integrally and fixedly connected, so that when the dual-color bulb is assembled, the circuits of the main filament 3 and the auxiliary filament 4 are firstly laid on the substrate 31, then the light source chips 32 of the main filament 3 and the auxiliary filament 4 are fixed on the substrate 31, and the light source chips 32 are connected to the respective circuits, then the two circuits are packaged by the fluorescent glue 33, and finally the two pins on the substrate 31 are fixed on the connecting support 2, so that the main filament 3 and the auxiliary filament 4 can be welded on the connecting support 2 in fewer steps, thereby facilitating the production of the dual-color bulb.

Referring to fig. 1, an external thread is integrally formed on the outer wall of the light-transmitting case 5 at the position of the communication inlet 52 for connecting with the lamp head 8, and an internal thread is integrally formed on the inner wall of the lamp head 8, so that after the stem 1 is installed on the light-transmitting case 5, the lamp head 8 can be fixed on the light-transmitting case 5, at this time, the lamp head 8 and the connecting bracket 2 are electrically connected at the part of the stem 1, and the external thread is further formed on the outer wall of the lamp head 8, so that the double-color bulb can be fixed on the screw socket, and the double-color bulb can be connected with an external power supply.

The implementation principle of a double-color bulb of the embodiment of the application is as follows: when the double-color bulb emits colored light, the lamp holder 8 can be sequentially conducted with positive current and negative current through an external controller, then the current flows to the connecting support 2, when the positive current passes through the lamp holder, the main filament 3 emits light, when the negative current passes through the lamp holder, the auxiliary filament 4 emits light, and the colors of the light emitted by the main filament 3 and the auxiliary filament 4 are different, so that when the frequencies of the positive current and the negative current which sequentially flow into the connecting support 2 are at a certain value, the light emitted by the main filament 3 and the auxiliary filament 4 observed by human eyes can be pseudo-colored, and the purpose of emitting colored light by the double-color bulb can be achieved.

Example 2

Referring to fig. 2 and 3, the difference from embodiment 1 is that: in the present embodiment, the substrate 31 inside the main filament 3 and the substrate 31 inside the auxiliary filament 4 are arranged side by side at an interval, so when the main filament 3 and the auxiliary filament 4 are assembled on the connecting support 2, the main filament 3 and the auxiliary filament 4 need to be welded on the connecting support 2 step by step, but when one of the main filament 3 and the auxiliary filament 4 is damaged, only one of the filaments needs to be replaced separately, so that each element in the bicolor bulb can be more fully utilized.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims (10)

1. The utility model provides a bicolor bulb, includes stem (1) and sets up linking bridge (2) on stem (1), its characterized in that: the filament lamp is characterized by further comprising a main filament (3) and an auxiliary filament (4), wherein the main filament (3) and the auxiliary filament (4) are electrically connected with the connecting support (2), and when the current flowing into the connecting support (2) is in a forward direction or a reverse direction, one of the main filament (3) and the auxiliary filament (4) is lightened.

2. The bi-color light bulb of claim 1, wherein: the base plate (31) in the main filament (3) and the base plate (31) in the auxiliary filament (4) are integrally connected.

3. The bi-color light bulb of claim 1, wherein: the base plate (31) in the main filament (3) and the base plate (31) in the auxiliary filament (4) are arranged discontinuously.

4. The bi-color light bulb of claim 1, wherein: the connecting support (2) comprises a first connecting part (21) and a second connecting part (22), the first connecting part (21) and the second connecting part (22) are both in an L-shaped bent shape, one end of the first connecting part (21) penetrates through the core column (1), the bent inner side of the first connecting part (21) faces the core column (1), and one end, far away from the core column (1), of the first connecting part (21) is fixedly connected with one pin of the filament; one end of the second connecting part (22) penetrates through the core column (1), the other end of the second connecting part is located between one end, away from the core column (1), of the first connecting part (21) and the core column (1), and the second connecting part (22) is located between one end, away from the core column (1), of the second connecting part and fixedly connected with the other pin of the filament.

5. The bi-color light bulb of claim 1, wherein: still include printing opacity casing (5), printing opacity casing (5) are including inner chamber (51) that are used for holding the filament and be used for making inner chamber (51) and outside intercommunication entry (52) be linked together, stem (1) sets up on the inner wall of intercommunication entry (52) to be provided with joint arch (11) on the outer wall of stem (1), stem (1) is connected through the inner wall of joint arch (11) and intercommunication entry (52) bloated tightly in addition.

6. The bi-color light bulb of claim 1, wherein: the inside of main filament (3) and auxiliary filament (4) all is provided with protection piece (34), protection piece (34) can carry out the step-down to the electric current that flows into itself.

7. The bi-color light bulb of claim 5, wherein: and a waterproof layer (6) for plugging the communication inlet (52) is arranged on one side of the communication inlet (52) far away from the inner cavity (51).

8. The bi-color light bulb of claim 5, wherein: the clamping protrusion (11) extends in the communication direction parallel to the communication inlet (52), and the thickness of one end, close to the inner cavity (51), of the clamping protrusion (11) in the diameter direction of the communication inlet (52) is smaller than the thickness of one end, far away from the inner cavity (51), of the clamping protrusion in the diameter direction of the communication inlet (52).

9. The bi-color light bulb of claim 5, wherein: keep away from stem (1) the one end of inner chamber (51) is provided with and separates fender sand grip (12), and separate and keep off sand grip (12) and connect on the edge of stem (1) terminal surface, moreover separate and keep off sand grip (12) and translucent casing (5) and be located intercommunication entry (52) and keep away from the terminal surface formation of inner chamber (51) one end and separate and keep off the butt.

10. The bi-color light bulb of claim 9, wherein: the baffle convex strips (12) extend along the edge of the end face of the core column (1), the baffle convex strips (12) are provided with a plurality of baffle convex strips, and a plurality of baffle convex strips (12) are formed with disassembly notches (7).

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