TWM459347U - Light emitting diode bulb - Google Patents

Abstract

A LED bulb includes a bulb head, a power PCBA of which a bottom is equipped with power pins, a LED PCB mounted to a top of the power PCBA and electrically connecting with the power PCBA, and a cover covered on the LED PCB. The bulb head includes a housing, electrical terminals disposed in the housing and including an anode terminal and a cathode terminal, and a power connection unit mounted to a bottom of the housing and including a bulb base and an anode element. One end of the anode terminal is electrically connected with a top end of the anode element. One end of the cathode terminal projects outside the housing to be electrically connected with the bulb base. The power PCBA is mounted on the housing. The power pins are electrically connected with another two ends of the anode terminal and the cathode terminal. -221 -38 ,119 30 10 -143

Description

Light-emitting diode bulb

The present invention relates to a lighting fixture, and more particularly to a light-emitting diode bulb.

In recent years, light-emitting diodes have been used in lighting devices because of their small size, low driving voltage, fast reaction rate, shock resistance, long life and environmental protection. With the continuous development and advancement of technology, the luminous efficiency of LEDs has not only surpassed the tungsten bulbs, but has also been above the fluorescent tubes, and nowadays electronic components are increasingly demanding light, thin and short. The miniaturization has led to the gradual replacement of tungsten filament bulbs by light-emitting diode bulbs and has become a large and widely used lighting fixture.

The conventional LED lamp includes a lamp holder, a power circuit board assembly, a light-emitting heat dissipation unit and a lamp cover, and the welding wire or the power supply circuit board assembly and the power circuit board assembly and the light-emitting heat dissipation unit are respectively Use the screw to directly press the wire to make electrical connection. Because the internal space of the lamp is small, the internal temperature is high when used. The longer wire is loosely inserted inside the lamp, which is easy to cause wire damage, loose wire solder joint, and screw pair. The wire conductor is not tightly pressed, which causes short circuit, open circuit, unstable lighting, and even accidents such as burnt out lamps, electric leakage and electric shock.

The purpose of this creation is to provide a light-emitting diode lamp that is electrically safe and stable in illumination for the above-mentioned deficiencies.

In order to achieve the above object, a light-emitting diode bulb provided by the present invention comprises a lamp cap, a power circuit board assembly, a light-emitting heat dissipating unit and a The lamp cover comprises a lamp inner sleeve, a plurality of conductive elastic pieces and an electrode connecting unit. The conductive elastic piece is accommodated and assembled in the inner sleeve of the lamp cap, and comprises a positive elastic piece and a negative elastic piece. The electrode connecting unit is assembled under the inner sleeve of the lamp cap. The utility model has a lamp cap outer casing and a positive electrode connecting member which is disposed at a lower end of the lamp cap casing and protrudes in the lamp cap casing. One end of the positive electrode elastic piece is in contact with the upper end of the positive electrode connecting member, and one end of the negative elastic piece protrudes beyond the inner sleeve of the lamp cap. The power supply circuit board assembly is provided with two power input pins, which are assembled on the inner sleeve of the lamp cap, and the power input pin is respectively inserted and clamped with the other end of the positive electrode elastic piece and the negative elastic piece; the light emitting heat dissipating unit is assembled. The lamp cover is fixed on the lamp cap and electrically connected to the power circuit board assembly, and the power circuit board assembly is housed in the light-emitting heat dissipation unit; the lamp cover is fastened on the light-emitting heat dissipation unit.

In summary, the light-emitting diode bulb of the present invention is electrically connected by the electrode connecting unit of the lamp cap and the conductive elastic piece of the lamp cap, and the conductive elastic piece of the lamp cap and the power input pin of the power circuit board assembly. Connection, the connection method does not need to weld the wire or directly press the wire to conduct the conductive process, which can effectively save the internal space of the lamp, and the connection mode is even if the internal temperature is high, the conductive contact points are high. The conduction is also relatively stable, so that the light-emitting diode bulb is safer to use and the illumination is more stable.

100‧‧‧Lighting diode bulb

10‧‧‧ lamp holder

11‧‧‧Inner cap

11a‧‧‧ Positioning block

11b‧‧‧ slots

110‧‧‧ external thread

111‧‧‧ holding block

112‧‧‧ accommodating frame

113‧‧‧ holding slot

114‧‧‧ accommodating slots

115‧‧‧Support board

116‧‧‧ card slot

117‧‧‧Snap ribs

118‧‧‧ Positioning Department

119‧‧ ‧ gap

120‧‧‧Perforation

12‧‧‧ positive shrapnel

121‧‧‧ first base

122‧‧‧First connection

123‧‧‧First plug-in

124‧‧‧ Holding Department

125‧‧‧Interference block

126‧‧‧ Sockets

13‧‧‧Negative shrapnel

130‧‧‧Second plug-in

131‧‧‧Second Base

132‧‧‧Second connection

133‧‧‧First Abutment

134‧‧‧Card Department

135‧‧‧second abutment

136‧‧‧stop

14‧‧‧Electrode connection unit

141‧‧‧ lamp coat

142‧‧‧ positive connection element

143‧‧‧ internal thread

144‧‧‧ Rivets

145‧‧‧ rivet sets

20‧‧‧Power Driver

21‧‧‧Power circuit board assembly

22‧‧‧ Shell

221‧‧‧ openings

222‧‧‧Locking slot

23‧‧‧Power input pin

24‧‧‧ Male connector

241‧‧‧Male body

242‧‧‧ male terminal

243‧‧‧ welding arm

244‧‧‧Chain arm

30‧‧‧Lighting unit

31‧‧‧ radiator body

311‧‧‧Snap slot

32‧‧‧Radiator sealing sheet

321‧‧‧ window

322‧‧‧through holes

33‧‧‧shade connecting ring

34‧‧‧Light substrate

341‧‧‧Lock hole

35‧‧‧Female connector

36‧‧‧Female body

361‧‧‧ base

362‧‧‧Baffle

363‧‧‧Bounce arm

364‧‧‧Terminal slot

365‧‧‧ Groove

37‧‧‧Female terminal

371‧‧‧Connecting plate

372‧‧‧Interposing

373‧‧‧Weld Department

374‧‧‧Clamping Department

375‧‧‧卡固板

376‧‧‧ card

38‧‧‧Locker

40‧‧‧shade

The first picture is a three-dimensional combination of the light-emitting diode bulbs.

The second figure is an exploded perspective view of the light-emitting diode bulb shown in the first figure.

The third figure is a perspective view of the inner sleeve of the light-emitting diode bulb shown in the second figure.

The fourth figure is a perspective view of the positive and negative elastic pieces of the light-emitting diode bulb shown in the second figure.

The fifth figure is an exploded perspective view of the female connector of the light-emitting diode bulb shown in the second figure.

Figure 6 is a cross-sectional view of the light-emitting diode bulb shown in the first figure.

The seventh drawing is a partial enlarged view of the portion VII shown in the sixth figure.

The eighth figure is a partial enlarged view of the portion VIII shown in the sixth figure.

In order to explain in detail the technical content, structural features, goals and effects of the present invention, the following is a detailed description with reference to the drawings.

Referring to the first, second and sixth figures, the light-emitting diode bulb 100 comprises a base 10, a power supply unit 20, a light-emitting heat dissipation unit 30 and a lamp cover 40. The power supply unit 20 includes A power circuit board assembly 21 is vertically assembled on the lamp cap 10 and electrically connected to the lamp cap 10; the light emitting heat dissipating unit 30 is assembled and fixed on the lamp cap 10, and is electrically connected to the power circuit board assembly 21. The power circuit board assembly 21 is housed in the light-emitting heat dissipation unit 30; the light cover 40 is fastened on the light-emitting heat dissipation unit 30.

Referring to the first, second and third figures, the base 10 includes a base inner sleeve 11, a plurality of conductive elastic sheets and an electrode connecting unit 14. The inner sleeve 11 has a hollow upper end open truncated cone shape, and an upper portion of the inner wall of the inner wall protrudes inwardly to form a pair of positioning blocks 11a. The inner side of the positioning block 11a defines an upper surface of the positioning block 11a. Slot 11b. A pair of mutually spaced retaining blocks 111 and a U-shaped receiving frame 112 are formed on the opposite sides of the lower portion of the inner wall of the inner cover 11. The two inner upper ends of the retaining block 111 are oppositely disposed with a pair of retaining slots 113. The holding groove 113 further extends through the upper surface of the holding block 111. The receiving frame 112 defines a receiving groove 114. The receiving groove 114 further penetrates the lamp inner sleeve 11 to communicate with the outside, and a support is provided at the bottom of the inner wall. The plate 115 is further recessed relative to the inner sides to form a pair of card slots 116. The inner sleeve 11 defines a through hole 120 in the middle of the bottom wall thereof; the outer end of the lower end of the base inner sleeve 11 is provided with an external thread 110. An annular snap rib 117 and at least one positioning portion 118 are protruded from the upper end outer wall of the cap inner sleeve 11. The upper end of the cap inner sleeve 11 is further provided with at least one notch 119. In this embodiment, the inner sleeve of the lamp cap 11 The upper end is provided with a pair of notches 119. The notch 119 divides the upper end of the cap inner sleeve 11 into two halves. The positioning portion 118 has two protrusions respectively protruding at the middle of each half.

Referring to the second, third and fourth figures, the conductive elastic piece is accommodated and assembled in the inner sleeve 11 of the lamp cap, and comprises at least a positive elastic piece 12 and a negative elastic piece 13. The positive electrode elastic piece 12 has a first base portion 121 having a vertical plate shape, a long plate-shaped first connecting portion 122 extending from a lower end of the first base portion 121 toward one side, and one extending from the upper end of the first base portion 121 to the other side. The first insertion portion 123 is formed in a U shape, and upper portions of the arms are bent obliquely toward each other to enable the first insertion portion 123 to withstand a large insertion force. The two sides of the first base portion 121 are oppositely protruded to form two holding portions 124. An interference block 125 is convexly disposed on one side of the holding portion 124. The free end of the first connecting portion 122 defines a insertion hole 126.

The negative elastic piece 13 has a U-shaped second insertion portion 130 and a second connection portion 132. The second connection portion 132 is opposite from the upper end of the second insertion portion 130 to the second insertion portion 130. The second connecting portion 132 is bent away from the second connecting portion 130 to form a second abutting portion 135. The lower end of the second connecting portion 132 is opposite to the first portion. One side of the two abutting portions 135 is bent to form a stopper portion 136. Specifically, the second plug portion 130 has a second base portion 131 having a vertical plate shape, and a first abutting portion 133 extending upward from the lower end of the second base portion 131, and an upper portion of the first abutting portion 133 The second base portion 131 is obliquely bent so that the second insertion portion 130 can withstand a large insertion force. The two side edges of the second base portion 131 are oppositely protruded to form two fastening portions 134.

The holding portion 124 of the positive electrode tab 12 is inserted into the holding groove 113 of the holding block 111 of the cap inner sleeve 11 and interferes with the retaining groove 113 by the interference block 125, thereby causing the first base portion 121 and the first plug portion. 123 is firmly placed between the holding blocks 111; the first connecting portion 122 is in close contact with the bottom wall of the cap inner sleeve 11 so that the insertion holes 126 and the through holes 120 are Align underneath. The negative elastic piece 13 is assembled and received in the receiving groove 114 of the inner sleeve 11 and is fixed by the locking portion 134 and the locking groove 116; the first abutting portion 133 abuts the bent joint of the second base 131 On the support plate 115, the stop portion 136 is held under the bottom wall of the cap inner sleeve 11, and the second abutment portion 135 protrudes from the cap inner sleeve 11 via the accommodating groove 114 to correspond to the external thread 110.

Referring to the first, second, sixth and seventh figures, the electrode connection unit 14 is assembled under the base inner sleeve 11 and has a cylindrical base 141 and a lamp cover 141. The positive end connecting member 142 protrudes from the upper end of the positive electrode tab 12 and the upper end of the positive electrode connecting member 142 is riveted and electrically conductive. One end of the negative elastic piece 13 protrudes beyond the inner sleeve 11 of the cap and the base. The outer casing 141 is spirally extruded to make contact conductive. Specifically, the positive electrode tab 12 and the positive electrode connecting member 142 are electrically connected to the first connecting portion 122 by the upper end of the positive connecting member 142 through the through hole 120 and the insertion hole 126; the inner wall of the cap outer casing 141 is provided with a ring. The inner sleeve 11 of the base inner sleeve 11 is matched with the inner thread 143, and the electrode connecting unit 14 is screwed together with the inner sleeve 11 by the internal thread 143 and the external thread 110, so that the second abutting portion of the negative elastic piece 13 is provided. The 135 is screwed with the base 141 to be in contact with the conductive. Further, the positive electrode connecting member 142 is composed of a rivet 144 and a set of rivet sleeves 145 disposed outside the rivet 144. The positive electrode elastic piece 12 and the positive electrode connecting member 142 are sequentially passed through the through hole 120 and the insertion hole through the upper end of the rivet 144. After 126, the first connecting portion 122 is crimped into contact with the conductive portion.

Referring to FIG. 2, FIG. 6 and FIG. 7 , the power circuit board assembly 21 of the power supply unit 20 is vertically assembled on the inner sleeve 11 of the base, and the slots 11b fixed to the positioning block 11a are respectively inserted on the two sides of the lower end. Inside, the power circuit board assembly 21 is firmly assembled on the inner sleeve 11 of the base. A power input pin 23 protruding downward is respectively disposed on two sides of the lower end of the power circuit board assembly 21, and the power input pin 23 is respectively connected to the positive elastic piece 12 and the negative elastic piece 13 The other ends are inserted and clamped to each other to contact the conductive. Specifically, the power input pin 23 has a shape of a piece, and the first plug portion 123 of the positive electrode elastic piece 12 and the second insertion portion 130 of the negative electrode elastic piece 13 are respectively inserted and clamped and electrically conductive.

A male connector 24 electrically connected to the power input pin 23 is disposed at the upper end of the power circuit board assembly 21. The male connector 24 includes a male end body 241 and a male terminal 242. The male terminal 242 is assembled and fixed to the male end body. The 241 has an L shape and has a soldering arm 243 and a plug arm 244. The soldering arm 243 is embedded and soldered to the power circuit board assembly 21, and is electrically connected to the power input pin 23, respectively. The power supply unit 20 further includes a casing 22 having a cylindrical shape and sleeved outside the power circuit board assembly 21. The upper end surface of the casing 22 defines an opening 221 corresponding to the male connector 24 for the male end. The insertion arm 244 of the terminal 242 protrudes outward; the upper end surface of the outer casing 22 is further recessed with a plurality of locking grooves 222.

Referring to FIG. 2, FIG. 6 and FIG. 7 , an annular snap groove 311 and at least one positioning groove (not shown) are formed on the inner wall of the lower port of the light-emitting heat dissipation unit 30, and the buckle rib of the inner sleeve 11 of the lamp cap is provided. The latching groove 311 of the illuminating unit 30 is fastened together by a press-fit snap connection, and the positioning portion 118 and the positioning slot are mutually locked; the upper end of the light-emitting heat dissipating unit 30 is provided with a female connector 35, the female connector 35 and the male connector 24 of the power circuit board assembly 21 are butted to each other to achieve electrical connection.

Specifically, in the embodiment, the heat dissipation unit 30 includes a heat sink body 31, a heat sink sealing sheet 32, a lamp cover connecting ring 33, a lamp substrate 34, and a female connector assembled on the lamp substrate 34. 35. The heat sink main body 31 is formed by a plurality of heat dissipating fins in a truncated cone shape, and the snap groove 311 and the positioning groove are defined in an inner wall of the lower port. The light-emitting heat dissipating unit 30 is assembled and fixed on the inner sleeve 11 by the heat sink main body 31, and the power circuit board assembly 21 and the outer casing 22 of the power source driving member 20 are housed in the heat sink main body 31. When assembled, the cap inner sleeve 11 is by the gap 119 The opening of the base inner cover 11 and the heat sink main body 31 is easy to assemble but is not easy to disassemble, and the above-mentioned snap fastening method is also not easy to loosen in a high temperature environment.

The heat sink sealing piece 32 is disposed at an upper port of the heat sink main body 31, and has a window 321 corresponding to the opening 221 of the outer casing 22 and a plurality of through holes 322 corresponding to the locking grooves 222 of the outer casing 22. The lampshade connection ring 33 is sleeved and fixed to the upper end of the heat sink body 31.

Referring to the second and sixth figures, the lamp substrate 34 is assembled and fixed on the heat sink sealing sheet 32, and a plurality of locking holes 341 corresponding to the heat sink sealing sheet 32 are opened thereon, and the plurality of locking members 33 are sequentially inserted and locked. In the locking hole 341, the through hole 322 and the locking groove 222, the lamp substrate 34, the heat sink sealing sheet 32 and the outer casing 22 are assembled and fixed together. In this embodiment, the fastener 38 is a screw.

Referring to FIG. 5 , the female connector 35 includes a female end body 36 and a female terminal 37 . The female end body 36 defines a plurality of terminal slots 364 extending through the upper and lower ends. The female terminal 37 is received in the terminal slot 364 . Specifically, the female end body 36 has a block-shaped base body 361. The upper end of the base body 361 is annularly outwardly convexly formed to form a stop plate 362. The lower ends of the base body 361 are outwardly protruded and then extended obliquely upward to form a pair of elastic arms 363. The terminal slot 364 is vertically disposed on the base 361, and a recess 365 is recessed in the inner wall of the terminal slot 364. The female terminal 37 has a soldering portion 373 and a pair of clamping portions 374 respectively. Specifically, the female terminal 37 further has a vertical plate-shaped connecting plate 371, and a tilting rearward and upward direction from opposite sides of the lower end of the connecting plate 371. The insertion portion 372 is extended and then bent toward each other, and the welded portion 373 is formed by bending from the upper end of the connecting plate 371 in a direction perpendicular to the connecting plate 371, and the clamping portion 374 is formed by The upper two sides of the insertion portion 372 are recessed from the outer side toward each other. The upper edges of the upper end of the connecting plate 371 extend obliquely rearward to form two fastening plates 375, and the lower portion of the connecting plate 371 is further forwardly punched to form a card 376.

When the female connector 35 is assembled, the connection plate of the female terminal 37 The 371 and the mating portion 372 are respectively received in the terminal groove 364 of the female end body 36, and the soldering portion 373 protrudes through the stopper 362 at the front end of the female end body 36. The fixing plate 375 is clamped to the inner wall of the terminal groove 364, and the card 376 is snapped into the groove 365, so that the female terminal 37 is firmly assembled on the female end body 36.

Referring to the second, sixth and eighth figures, the female connector 35 is fixed to the upper end of the light-emitting heat dissipation unit 30 by the stopper plate 362 and the elastic arm 363. Specifically, the stop plate 362 abuts against the upper surface of the lamp substrate 34, and the soldering portion 373 of the female terminal 37 is soldered to the corresponding contact surface of the upper surface of the lamp substrate 34 of the light-emitting heat dissipating unit 30; the female end body The upper end of the elastic arm 363 of 36 abuts against the lower surface of the lamp substrate 34, whereby the female connector 35 and the lamp substrate 34 are firmly assembled. The lower portion of the female connector 35 is inserted into the window 321 of the heat sink sealing sheet 32 and the opening 221 of the outer casing 22 to abut the male connector 24 of the power circuit board assembly 21, and the plug arm 244 of the male terminal 242. The clamping portion 374 of the female terminal 37 is inserted and clamped to electrically connect. Thereafter, the lamp cover 40 is engaged with the lampshade connection ring 33 of the light-emitting heat dissipation unit 30.

In summary, the present invention is provided with the electrode assembly unit 14 of the lamp cap 10 and the conductive elastic piece of the lamp cap 10, the conductive elastic piece of the lamp cap 10 and the power input pin 23 of the power circuit board assembly 21 and the power supply circuit. The male connector 24 of the board assembly 21 and the female connector 35 of the light-emitting heat dissipating unit 30 are mutually inserted and clamped to realize electrical connection, and the connection manner thereof does not require welding wires or a process of directly pressing the wires for conducting electricity without using screws. The internal space of the lamp can be effectively saved, and the connection mode can make the conductive contact points more stable even when the internal temperature is high during use, so that the light-emitting diode bulb 100 is safer to use and the illumination is more stable. .

11‧‧‧Inner cap

12‧‧‧ positive shrapnel

13‧‧‧Negative shrapnel

141‧‧‧ lamp coat

142‧‧‧ positive connection element

21‧‧‧Power circuit board assembly

22‧‧‧ Shell

23‧‧‧Power input pin

24‧‧‧ Male connector

31‧‧‧ radiator body

32‧‧‧Radiator sealing sheet

33‧‧‧shade connecting ring

34‧‧‧Light substrate

35‧‧‧Female connector

38‧‧‧Locker

40‧‧‧shade

Claims (16)

The invention relates to a light-emitting diode bulb, comprising: a lamp cap, comprising a lamp inner sleeve, a plurality of conductive elastic pieces and an electrode connecting unit, wherein the conductive elastic piece is accommodated and assembled in the inner sleeve of the lamp cap, and comprises a positive elastic piece and a negative electrode. The elastic piece connecting unit is assembled under the inner sleeve of the lamp cap, and has a lamp cap outer casing and a positive electrode connecting member which is disposed at a lower end of the lamp cap outer casing and protrudes in the lamp cap outer casing. One end of the positive electrode elastic piece is in contact with the upper end of the positive electrode connecting member, and is electrically conductive. One end of the negative elastic piece protrudes outside the inner sleeve of the lamp cap and is in contact with the lamp cap outer casing; a power circuit board assembly has two power input pines at the lower end thereof, and the power circuit board assembly is assembled on the inner sleeve of the lamp cap, and the power input pin is respectively connected with the positive electrode The other ends of the elastic piece and the negative elastic piece are mutually inserted and electrically conductive; a light-emitting heat dissipation unit is assembled and fixed on the lamp base, and is electrically connected to the power circuit board assembly, the power circuit board assembly is housed in the light-emitting heat dissipation unit; and a lamp cover The lamp cover is fastened on the light-emitting heat dissipation unit. The light-emitting diode bulb of claim 1, wherein the inner wall of the inner sleeve of the base protrudes inwardly from opposite sides to form a pair of positioning blocks, and an inner upward positioning block is formed on the inner side of the positioning block. The slot on the upper surface and the lower end of the power circuit board assembly are respectively inserted into the slots of the positioning block. The light-emitting diode bulb of claim 1, wherein the positive electrode has a long plate-shaped first connecting portion, and the free end of the first connecting portion defines a plug hole, and the lamp cap is sleeved. A through hole is defined in the bottom wall thereof, and the insertion hole is vertically aligned with the through hole, and the upper end of the positive electrode connecting member is sequentially passed through the through hole and the insertion hole to be in contact with the first connection portion of the positive electrode spring. The light-emitting diode bulb of claim 1, wherein the positive electrode has a first U-shaped plug portion, and the power input pin and the first plug of the power circuit board assembly are mutually connected. The plug is electrically conductive. The light-emitting diode bulb according to claim 1 of the patent application, wherein The positive electrode elastic piece has a first base portion formed in a vertical plate shape, a first connecting portion extending from a lower end of the first base portion to one side, and a first connecting portion formed by bending from an upper end of the first base portion to the other side. And the first connecting portion is riveted and electrically connected to the upper end of the positive electrode connecting component, and the power input pin of the power circuit board assembly and the first plug portion of the positive electrode spring are mutually inserted and clamped to conduct electricity. The light-emitting diode bulb of claim 1, wherein one end of the negative elastic piece is bent outwardly to form a second abutting portion, and the outer wall of the lower end of the inner sleeve of the lamp cap is provided with a ring. Threading, the second abutting portion protrudes outside the inner sleeve of the lamp cap and is correspondingly connected with the external thread, the inner wall ring of the lamp cap outer casing is provided with an internal thread, and the electrode connecting unit is screwed with the inner sleeve of the lamp cap by the internal thread and the external thread. Together, the second abutting portion is in electrical contact with the base of the lamp cap. The light-emitting diode bulb of claim 1, wherein the negative elastic has a U-shaped second plug, and the power input pin and the second plug of the power circuit board assembly are mutually connected. The plug is electrically conductive. The light-emitting diode bulb of claim 7, wherein the negative elastic piece further has a second connecting portion, and the second connecting portion is opposite from the upper end of the second plugging portion The second connecting portion is bent outwardly to form a second abutting portion, and the second abutting portion protrudes outside the inner sleeve of the lamp cap and the lamp cap. The jacket is spirally pressed to contact the conductive. The light-emitting diode bulb of claim 8, wherein the lower end of the second connecting portion of the negative elastic piece is bent toward a side opposite to the second abutting portion to form a stopping portion. The stop is held under the bottom wall of the inner sleeve of the lamp cap. The light-emitting diode bulb of claim 1, wherein the upper end of the power circuit board assembly is provided with a male connector, the male connector is electrically connected to the power input pin; and the upper end of the light-emitting heat-dissipating unit is provided. There is a female connector that is electrically connected to the male connector of the power circuit board assembly. The light-emitting diode bulb according to claim 10, wherein The male connector includes a male end body and a male terminal. The male terminal is assembled and fixed on the male end body, and has a welding arm and a plug arm. The soldering arm is embedded and soldered to the power circuit board assembly. Together, and electrically connected to the power input pin respectively; the female connector comprises a female end body and a female end terminal, the female end body is provided with a plurality of terminal slots penetrating vertically, the female end terminals respectively have a soldering portion and a pair of clamping The female terminal is received in the terminal slot, the soldering portion protrudes from the front end of the female end body, and is soldered to the corresponding contact on the upper surface of the light-emitting heat dissipating unit, and the male and female terminal terminals of the male terminal The clamping portion is electrically connected to the insertion clamp. The light-emitting diode bulb of claim 11, wherein the female terminal further has a connecting plate and a diagonally extending rearwardly from opposite sides of the connecting plate and then bent and abutted toward each other. In the insertion portion, the welded portion is formed to extend forward from the upper end of the connecting plate, and the clamping portion is formed by recessing both sides of the insertion portion toward each other. The light-emitting diode bulb of claim 12, wherein the two ends of the upper end of the connecting plate of the female terminal extend obliquely rearward to form two fastening plates, and the lower portion of the connecting plate further forwards The card is formed into a card, and the inner wall of the terminal slot of the female end body is clamped and fixed to each other. A recess is formed in the inner wall of the terminal slot, and the card is buckled in the groove. The light-emitting diode bulb of claim 11, wherein the female end body of the female connector has a base body, and the upper end of the base body protrudes outward to form a stop plate, and the lower ends of the base body are outwardly outward. The protruding and then extending obliquely upwardly form a pair of elastic arms, and the female connector is fixed to the upper end of the light-emitting heat dissipating unit by the stopper and the elastic arm clamping insert assembly. The light-emitting diode bulb of claim 1, wherein the upper end of the inner sleeve of the base has an annular snap rib and at least one positioning portion, and the upper end of the inner sleeve of the base is further provided with at least a notch; an annular snap groove and at least one positioning groove are formed in the inner wall of the lower port of the light-emitting heat dissipation unit, and the buckle rib of the inner sleeve of the lamp cap and the buckle groove of the light-emitting heat-dissipating unit are fastened together by a press-fit snap connection The positioning portion and the positioning groove are mutually locked. The invention relates to a light-emitting diode bulb, comprising: a lamp cap, comprising a lamp inner sleeve, a plurality of conductive elastic pieces and an electrode connecting unit, wherein the conductive elastic piece is accommodated and assembled in the inner sleeve of the lamp cap, and comprises a positive elastic piece and a negative electrode. The elastic piece and the electrode connecting unit are assembled under the inner sleeve of the lamp cap, and one end of the positive elastic piece and the negative elastic piece are respectively in contact with the electrode connecting unit; the power circuit board assembly has two power input pins at the lower end thereof, and one power input pin is arranged at the upper end thereof. The electrical connector is electrically connected, the power circuit board assembly is assembled on the inner sleeve of the lamp cap, and the power input pin is respectively in contact with the other end of the positive elastic piece and the negative elastic piece; and a light emitting heat dissipation unit is provided with a female connector at the upper end thereof, and the light is emitted The heat dissipating unit is assembled and fixed on the lamp cap, the power circuit board assembly is housed in the light emitting heat dissipating unit, the female connector and the male connector are butted to each other to realize electrical connection, and a lamp cover is fastened on the light emitting heat dissipating unit.