阅读说明：本技术 一种可调节的混光均匀的led封装结构 (Adjustable LED packaging structure with uniform light mixing ) 是由 区永超 于 2021-09-17 设计创作，主要内容包括：本申请涉及一种可调节的混光均匀的LED封装结构,涉及LED封装的领域,其包括底座,所述底座的顶部开设有凹槽,所述凹槽内设有基座,所述基座上固接有芯片,所述凹槽处设有灯罩,所述凹槽内对称设置有两个反光板,两个所述反光板分别位于所述基座的相对两侧,两个所述反光板相靠近的一侧分别与所述底座转动连接,所述底座上设有驱动机构,所述驱动机构用于驱动两个所述反光板远离转动轴的一侧相互靠近或远离。本申请具有便于调节光线反射角度,调节LED封装结构的光通量的效果。(The utility model relates to a mix even LED packaging structure of light with adjustable relates to the field of LED encapsulation, and it includes the base, the top of base is seted up flutedly, be equipped with the base in the recess, the rigid coupling has the chip on the base, groove department is equipped with the lamp shade, the symmetry is provided with two reflector panels, two in the recess the reflector panel is located respectively the relative both sides of base, two one side that the reflector panel is close to respectively with the base rotates to be connected, be equipped with actuating mechanism on the base, actuating mechanism is used for driving two one side that the axis of rotation was kept away from to the reflector panel is close to each other or keeps away from. The LED packaging structure has the advantages that the light reflection angle can be conveniently adjusted, and the luminous flux of the LED packaging structure can be adjusted.)

1. The utility model provides a mix even LED packaging structure of light with adjustable, includes base (1), recess (101) are seted up at the top of base (1), be equipped with base (2) in recess (101), the rigid coupling has chip (3) on base (2), recess (101) department is equipped with lamp shade (4), its characterized in that: the interior symmetry of recess (101) is provided with two reflector panels (5), two reflector panel (5) are located respectively the relative both sides of base (2), two one side that reflector panel (5) are close to mutually respectively with base (1) rotates and is connected, be equipped with actuating mechanism (6) on base (1), actuating mechanism (6) are used for driving two one side that the axis of rotation was kept away from in reflector panel (5) is close to each other or is kept away from.

2. The LED package structure of claim 1, wherein: the drive mechanism (6) comprises: a first bevel gear (61), a second bevel gear (62) and a positioning assembly (63);

one side, close to the base (2), of each light reflecting plate (5) is fixedly connected with a rotating rod (51), the rotating rods (51) are rotatably installed in the grooves (101), two first bevel gears (61) are arranged, and the two first bevel gears (61) are coaxially and fixedly connected to the two rotating rods (51) on the same side of the two light reflecting plates (5) respectively;

two second bevel gears (62) are arranged, the two second bevel gears (62) are rotatably mounted in the groove (101) and symmetrically arranged, one second bevel gear (62) is meshed with one first bevel gear (61), and the two second bevel gears (62) are positioned on one sides of the two first bevel gears (61) close to or far away from each other;

two be equipped with connecting rod (64) between second bevel gear (62), the both ends of connecting rod (64) respectively with two the center department rigid coupling of second bevel gear (62), the lateral wall of base (1) seted up with rotation through-hole (102) that recess (101) are linked together, it has twist pole (641) to rotate through-hole (102) internal rotation, the one end protrusion of twist pole (641) in the lateral wall of base (1), the other end with the coaxial rigid coupling of connecting rod (64), locating component (63) are located twist pole (641) with between base (1), locating component (63) are used for making the turned angle of reflector panel (5) is fixed.

3. The LED package structure of claim 2, wherein: the positioning assembly (63) comprises a first sleeve (631) and a second sleeve (632);

the first sleeve (631) is slidably sleeved on the twisting rod (641) and coaxially arranged with the twisting rod (641), the first sleeve (631) and the twisting rod (641) synchronously rotate, the second sleeve (632) is sleeved on the first sleeve (631) and coaxially arranged with the first sleeve (631), one end of the second sleeve (632) is fixedly connected with the base (1), and a movable cavity (633) for the first sleeve (631) to movably embed is formed between the second sleeve (632) and the first sleeve (631);

seted up a plurality of edges on the internal perisporium of second sleeve (632) spacing groove (6321) that second sleeve (632) axial was laid, spacing groove (6321) are kept away from the one end of base (1) is the opening form, set firmly on the periphery wall of first sleeve (631) and can correspond the slip-in limiting plate (6311) in the spacing groove (6321).

4. The LED package structure of claim 3, wherein: the internal perisporium of first sleeve (631) is equipped with slider (6312), spout (6411) are seted up to the periphery wall of twist pole (641), spout (6411) are followed the axial of twist pole (641) is laid, slider (6312) with spout (6411) sliding fit.

5. The LED package structure of claim 1, wherein: the lower surface rigid coupling of base (1) has ventilation hood (103) that the lower extreme is the opening form, the periphery side interval of ventilation hood (103) upper end seted up a plurality ofly with ventilation through-hole (104) that ventilation hood (103) inside is linked together, liftable being provided with in ventilation hood (103) holds case (7), it is provided with exhaust fan (71) in case (7) to hold.

6. The LED package structure of claim 5, wherein: external screw thread (1031) have been seted up to the internal perisporium of draft hood (103), internal thread (72) have been seted up to the periphery wall that holds case (7), hold case (7) screw-thread fit in draft hood (103).

7. The LED package structure of claim 5, wherein: two opposite inner side walls of the ventilation hood (103) are respectively provided with an anti-drop block (1032), the two opposite sides of the peripheral wall of the containing box (7) are respectively provided with a lifting groove (73) which is distributed along the axial direction of the containing box (7), the anti-falling block (1032) is matched with the lifting grooves (73) in a sliding manner, fixing grooves (74) are respectively formed in two opposite sides of the upper end of the accommodating box (7), one fixing groove (74) is communicated with the upper end of one lifting groove (73), and the two fixing grooves (74) are arranged along the circumferential side of the accommodating box (7) in the same direction, the anti-falling blocks (1032) are matched with the fixing grooves (74) in a sliding mode, a group of fixing pieces (8) are arranged between one fixing groove (74) and one anti-falling block (1032), the fixing piece (8) is used for fixing the position of the anti-falling block (1032) in the fixing groove (74).

8. The LED package structure of claim 7, wherein: fixing piece (8) include first magnet piece (81) and second magnet piece (82), first magnet piece (81) are located fixed slot (74) are kept away from on the inside wall of lift groove (73), second magnet piece (82) are located on anticreep piece (1032), first magnet piece (81) with second magnet piece (82) are mutually inhaled magnetically.

Technical Field

The application relates to the field of LED packaging, in particular to an adjustable LED packaging structure with uniform light mixing.

Background

An LED (semiconductor light emitting diode) package refers to a package of a light emitting chip. The function of the package is to provide sufficient protection to the chip from failure due to long-term exposure to air or mechanical damage, thereby improving the stability of the chip.

An application number is CN 201120124273.9's chinese patent discloses a LED packaging structure, including LED encapsulation support monomer and set up in LED chip on the LED encapsulation support monomer, LED encapsulation support monomer is monolithic metal soleplate, the LED chip upper shield is equipped with optical lens.

With respect to the related art among the above, the inventors consider that the following drawbacks exist: when the LED chip is diffused to the outside through the optical lens during light emitting, the angle of light reflection is constant, so that the light flux of the LED packaging structure cannot be adjusted.

Disclosure of Invention

In order to adjust the light reflection angle for the convenience, adjust LED packaging structure's luminous flux, this application provides the even LED packaging structure of mixed light with adjustable.

The application provides a mix even LED packaging structure of light adopts following technical scheme with adjustable:

the utility model provides a mix even LED packaging structure of light with adjustable, includes the base, the top of base is seted up flutedly, be equipped with the base in the recess, the rigid coupling has the chip on the base, groove department is equipped with the lamp shade, the symmetry is provided with two reflector panels in the recess, two the reflector panel is located respectively the relative both sides of base, two one side that the reflector panel is close to respectively with the base rotates to be connected, be equipped with actuating mechanism on the base, actuating mechanism is used for driving two one side that the axis of rotation was kept away from to the reflector panel is close to or is kept away from each other.

By adopting the technical scheme, when the luminous flux of the packaging structure needs to be adjusted, the driving mechanism drives the two light reflecting plates to rotate, so that the sides, away from the rotating shaft, of the two light reflecting plates are close to or far away from each other, the reflection angle of light rays emitted by the chip is adjusted, and the adjustment of the luminous flux of the packaging structure is realized; the arrangement angle between the two reflectors is changed through the driving mechanism, so that the light of the packaging structure can be freely adjusted, the flexibility of light flux adjustment of the packaging structure is improved, and the packaging structure is convenient and practical.

Optionally, the drive mechanism comprises: the positioning device comprises a first bevel gear, a second bevel gear and a positioning component;

a rotating rod is fixedly connected to one side, close to the base, of each reflecting plate, the rotating rods are rotatably installed in the grooves, two first bevel gears are arranged, and the two first bevel gears are coaxially and fixedly connected to the two rotating rods on the same side of the two reflecting plates respectively;

two second bevel gears are arranged, the two second bevel gears are rotatably arranged in the groove and symmetrically arranged, one second bevel gear is meshed with one first bevel gear, and the two second bevel gears are positioned on the sides, close to or far away from each other, of the two first bevel gears;

two be equipped with the connecting rod between the second bevel gear, the both ends of connecting rod respectively with two second bevel gear's center department rigid coupling, the lateral wall of base seted up with the rotation through-hole that the recess is linked together, the rotation through-hole internal rotation is connected with the twist rod, the one end protrusion of twist rod in the lateral wall of base, the other end with the coaxial rigid coupling of connecting rod, locating component locates the twist rod with between the base, locating component is used for making the turned angle of reflector panel is fixed.

By adopting the technical scheme, when the luminous flux is adjusted, the screwing rod can freely rotate in the rotating through hole through the positioning assembly, then the screwing rod is rotated, the screwing rod drives the two second bevel gears to rotate through the connecting rod, and then the two first bevel gears are driven to rotate in opposite directions simultaneously, so that the two reflecting plates are far away from the base and approach to or depart from each other, the adjustment of different luminous fluxes of the packaging mechanism is realized, and the operation is convenient and quick; the rotating angle of the twisting rod is fixed through the positioning assembly, so that the luminous flux of the packaging structure can be kept constant, and the packaging structure is convenient to use; the synchronous rotation of the two second bevel gears can be realized through the connecting rod, the power source is saved, and time and labor are saved.

Optionally, the positioning assembly comprises a first sleeve and a second sleeve;

the first sleeve is sleeved on the screwing rod in a sliding mode and is arranged coaxially with the screwing rod, the first sleeve and the screwing rod rotate synchronously, the second sleeve is sleeved on the first sleeve and is arranged coaxially with the first sleeve, one end of the second sleeve is fixedly connected with the base, and a movable cavity for the first sleeve to be movably embedded into is formed between the second sleeve and the first sleeve;

the inner peripheral wall of the second sleeve is provided with a plurality of limiting grooves which are arranged along the axial direction of the second sleeve, one end of the limiting groove, which is far away from the base, is in an open shape, and the outer peripheral wall of the first sleeve is fixedly provided with a limiting plate which can correspondingly slide into the limiting grooves.

By adopting the technical scheme, when the twisting rod needs to be rotated, the limiting plate is separated from the limiting groove by sliding the first sleeve, the first sleeve is rotated to drive the twisting rod to synchronously rotate, so that the rotating angle of the reflector is adjusted, when the twisting rod is rotated to a required position, the first sleeve is slid into the movable cavity, and the limiting plate is embedded into the limiting groove, so that the rotating angle of the twisting rod is fixed, the position of the reflector is fixed, the rotating rod is not easy to rotate, the smooth operation of the reflector on light reflection is ensured, and the operation is convenient and rapid; the angle that a plurality of spacing grooves are convenient for rotate the dwang of different angles is fixed, improves packaging structure's practicality.

Optionally, the inner peripheral wall of the first sleeve is provided with a sliding block, the outer peripheral wall of the twisting rod is provided with a sliding groove, the sliding groove is arranged along the axial direction of the twisting rod, and the sliding block is matched with the sliding groove in a sliding mode.

By adopting the technical scheme, the sliding block is matched with the sliding groove in a sliding manner, so that the first sleeve can smoothly slide in a reciprocating manner along the axial direction of the rotating rod, and the limiting plate can accurately slide into the limiting groove; and the first sleeve and the rotating rod can rotate synchronously.

Optionally, the lower surface rigid coupling of base has the lower extreme to be the draft hood of opening form, the periphery side interval of draft hood upper end be equipped with a plurality of with the inside ventilative through-hole that is linked together of draft hood, liftable be provided with in the draft hood and hold the case, it is provided with the exhaust fan to hold the incasement.

By adopting the technical scheme, the containing box is lowered to expose the ventilation through hole, and the exhaust fan is started to conveniently dissipate heat of the packaging structure, so that the service life of the chip is prolonged; the messenger holds the case and rises both to be convenient for to hold the case upper end and submerge the draft hood in, reduces the holistic volume of packaging structure, and packaging structure's of being convenient for deposits, also can make the perisporium that holds the case simultaneously and carry out the shutoff to ventilative through-hole to reduce the dust and fall into and hold the incasement, prolong the life of exhaust fan.

Optionally, the internal peripheral wall of draft hood has seted up the external screw thread, the internal screw thread has been seted up to the peripheral wall that holds the case, hold the case screw thread assembly in the draft hood.

Through adopting above-mentioned technical scheme, twist and move and hold the case, can realize holding the case upper end and submerging the draft hood or protrusion in base, easy operation.

Optionally, two relative inside walls of the ventilation hood are provided with anti-disengaging blocks respectively, the edge has been seted up respectively to the relative both sides that hold the case periphery wall hold the lift groove that the case axial was laid, anti-disengaging block with lift groove sliding adaptation, the fixed slot has been seted up respectively to the relative both sides that hold the case upper end, one the fixed slot is linked together with one the upper end in lift groove, and two the fixed slot is followed the week side syntropy that holds the case is laid, anti-disengaging block with fixed slot sliding adaptation, one fixed slot and one be equipped with a set of mounting between the anti-disengaging block, the mounting is used for making the anti-disengaging block is in position fixation in the fixed slot.

By adopting the technical scheme, the base is upwards slid, the anti-falling block slides along the lifting groove, when the anti-falling block slides to the top end of the lifting groove, the base is rotated to enable the anti-falling block to slide into the fixing groove, and the position of the anti-falling block in the fixing groove is fixed through the fixing piece, so that the ventilation through hole is exposed, and the heat dissipation work of the chip is realized; the anti-falling block can slide in the fixing groove through the fixing piece, so that the accommodating box is rotated to enable the anti-falling block to move to the lifting groove, and the accommodating box can be accommodated in the ventilation hood by sliding the base downwards, and the operation is convenient and rapid; the fixed slot can be spacing to the anticreep piece on vertical direction, makes the base and holds the difficult displacement that takes place vertical direction between the case.

Optionally, the mounting includes first magnet piece and second magnet piece, first magnet piece is located the fixed slot is kept away from on the inside wall of lift groove, the second magnet piece is located on the anticreep piece, first magnet piece with second magnet piece looks magnetism is inhaled.

Through adopting above-mentioned technical scheme, the magnetic attraction of first magnet piece and second magnet piece is convenient for the quick fixed or the separation of anticreep piece in the fixed slot, convenient operation.

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

1. the driving mechanism drives the two light reflecting plates to rotate, so that one sides of the two light reflecting plates, which are far away from the rotating shaft, are close to or far away from each other, and the reflection angle of light rays emitted by the chip is adjusted, so that the adjustment of the luminous flux of the packaging structure is realized;

2. the twisting rod is rotated, the twisting rod drives the two second bevel gears to rotate through the connecting rod, and then the two first bevel gears are driven to rotate in opposite directions simultaneously, so that the two reflecting plates are far away from the base and approach to or separate from each other, the adjustment of different luminous fluxes of the packaging mechanism is realized, and the operation is convenient and rapid;

3. the messenger holds the case and descends in order to expose ventilative through-hole, starts the exhaust fan in order to dispel the heat to packaging structure, the life of extension chip.

Drawings

FIG. 1 is a schematic overall structure diagram of a first embodiment of the present application;

FIG. 2 is a schematic diagram of an exploded structure between a ventilating fan, a ventilating hood and a containing box according to an embodiment of the present application;

FIG. 3 is a schematic structural diagram (with the lamp cover removed) of the first embodiment of the present application;

FIG. 4 is an enlarged partial schematic view of portion A of FIG. 1;

fig. 5 is a schematic structural diagram of a second embodiment of the present application.

Reference numerals: 1. a base; 101. a groove; 102. rotating the through hole; 103. a ventilation hood; 1031. an external thread; 1032. an anti-drop block; 104. a ventilation through hole; 2. a base; 3. a chip; 4. a lamp shade; 5. a reflector; 51. rotating the rod; 6. a drive mechanism; 61. a first bevel gear; 62. a second bevel gear; 63. a positioning assembly; 631. a first sleeve; 6311. a limiting plate; 6312. a slider; 632. a second sleeve; 6321. a limiting groove; 633. a movable cavity; 64. a connecting rod; 641. screwing the rod; 6411. a chute; 7. an accommodating box; 71. an exhaust fan; 72. an internal thread; 73. a lifting groove; 74. fixing grooves; 8. a fixing member; 81. a first magnet piece; 82. a second magnet piece.

Detailed Description

The present application is described in further detail below with reference to figures 1-5.

The embodiment of the application discloses LED packaging structure that mixed light is even with adjustable.

Example 1

Referring to fig. 1 and 2, an adjustable LED packaging structure that mixes light evenly includes base 1, base 1 is the cuboid form, base 1's top is seted up transversal circular-shaped recess 101 of personally submitting, the rigid coupling has base 2 in the recess 101, the rigid coupling has chip 3 on the base 2, recess 101 department rigid coupling has transparent material's lamp shade 4, the symmetry is provided with two reflector panels 5 in the recess 101, two reflector panels 5 all are semi-circular and are silver reflector panel 5, two reflector panels 5 are located the relative both sides of base 2 respectively, one side that two reflector panels 5 are close to mutually rotates with base 1 respectively and is connected, be equipped with actuating mechanism 6 on the base 1, actuating mechanism 6 is used for driving one side that two reflector panels 5 keep away from the axis of rotation and is close to each other or keeps away from the luminous flux in order to adjust packaging structure. A ventilation cover 103 with an open lower end is fixedly connected to the lower surface of the base 1, the cross section of the ventilation cover 103 is circular, a plurality of ventilation through holes 104 communicated with the inside of the ventilation cover 103 are arranged at intervals on the outer peripheral side of the upper end of the ventilation cover 103, a containing box 7 is arranged in the ventilation cover 103, a horizontally arranged exhaust fan 71 is fixedly connected in the containing box 7, external threads 1031 are arranged on the inner peripheral wall of the ventilation cover 103, internal threads 72 are arranged on the outer peripheral wall of the containing box 7, and the containing box 7 is assembled in the ventilation cover 103 in a threaded manner; the accommodating box 7 is lowered to expose the ventilation through hole 104, and the exhaust fan 71 is started to radiate the packaging structure, so that the service life of the chip 3 is prolonged.

Referring to fig. 1 and 3, the drive mechanism 6 includes: a first bevel gear 61, a second bevel gear 62 and a positioning assembly 63; one side rigid coupling that every reflector panel 5 is close to base 2 has dwang 51, the inner diapire rigid coupling of recess 101 has two sets of installation otic placodes, the relative both sides of base 2 are laid to two sets of installation otic placode symmetries, every group installation otic placode has two, two installation otic placodes intervals are laid, the both ends of a dwang 51 are rotated respectively and are installed on two installation otic placodes in every group and the direction is unanimous with base 1's length layout direction, two dwangs 51 all bulge in two installation otic placodes with one side, first bevel gear 61 is equipped with two, two first bevel gear 61 coaxial rigid couplings are respectively on two dwangs 51 on two installation otic placodes of protrusion.

Two second bevel gears 62 are provided, two second bevel gears 62 are rotatably mounted in the groove 101 and symmetrically arranged, one second bevel gear 62 is meshed with one first bevel gear 61, and two second bevel gears 62 are located on the sides, far away from each other, of the two first bevel gears 61 (in other embodiments, the two second bevel gears 62 may also be located on the sides, close to each other, of the two first bevel gears 61 at the same time);

a connecting rod 64 is arranged between the two second bevel gears 62, the arrangement direction of the connecting rod 64 is consistent with the width arrangement direction of the base 1, two ends of the connecting rod 64 are fixedly connected with the centers of the two second bevel gears 62 respectively, a rotating through hole 102 communicated with the groove 101 is formed in the outer side wall of the base 1, a screwing rod 641 is rotatably connected in the rotating through hole 102, one end of the screwing rod 641 protrudes out of the outer side wall of the base 1, and the other end of the screwing rod 641 is coaxially and fixedly connected with the connecting rod 64.

The twisting rod 641 is rotated, the twisting rod 641 drives the two second bevel gears 62 to rotate through the connecting rod 64, and then the two first bevel gears 61 are driven to rotate in opposite directions simultaneously, so that the two reflection plates 5 are far away from the base 2 and approach to or separate from each other, and the adjustment of different luminous fluxes of the packaging mechanism is realized, and the operation is convenient and fast;

referring to fig. 1 and 4, a positioning assembly 63 is disposed between the screw rod 641 and the base 1, and the positioning assembly 63 is used to fix the rotation angle of the reflector 5.

Positioning assembly 63 includes a first sleeve 631 and a second sleeve 632; the first sleeve 631 is slidably sleeved on the screwing rod 641 and coaxially arranged with the screwing rod 641, a sliding block 6312 is fixedly connected to the inner peripheral wall of the first sleeve 631, a sliding groove 6411 is formed in the outer peripheral wall of the screwing rod 641, the sliding groove 6411 is arranged in the axial direction of the screwing rod 641, and the sliding block 6312 is in sliding fit with the sliding groove 6411, so that the first sleeve 631 can smoothly slide in the axial direction of the screwing rod 641, and the first sleeve 631 and the screwing rod 641 can synchronously rotate; the second sleeve 632 is sleeved on the first sleeve 631 and coaxially arranged with the first sleeve 631, one end of the second sleeve 632 is fixedly connected with the base 1, and a movable cavity 633 for the first sleeve 631 to movably embed is formed between the second sleeve 632 and the first sleeve 631;

the inner peripheral wall of the second sleeve 632 is provided with a plurality of limiting grooves 6321 arranged along the axial direction of the second sleeve 632, one end of the limiting groove 6321 far away from the base 1 is open, and the outer peripheral wall of the first sleeve 631 is fixedly provided with a limiting plate 6311 capable of correspondingly sliding into the limiting groove 6321.

When the twisting rod 641 is rotated to needs, the first sleeve 631 that slides makes the limiting plate 6311 break away from the spacing groove 6321 in, rotate first sleeve 631 and then drive the twisting rod 641 and rotate in step, realize the regulation of 5 turned angle of reflector panel, when rotating the twisting rod 641 to required position, the first sleeve 631 that slides gets into activity chamber 633, and make limiting plate 6311 imbed in the spacing groove 6321, thereby realize twisting rod 641 turned angle's fixed, so that the position of reflector panel 5 is fixed, make the difficult emergence of dwang 51 rotate, guarantee going on smoothly of reflector panel 5 to the reflection work of light, and convenient for operation, swiftly.

The implementation principle of the embodiment 1 is as follows: when the luminous flux of the package structure needs to be adjusted, the screwing rod 641 is rotated to further drive the two second bevel gears 62 to rotate, the two second bevel gears 62 simultaneously drive the two first bevel gears 61 to rotate in opposite directions, so as to drive one sides of the two reflection plates 5 far away from the rotating rod 51 to be close to or far away from each other, thereby adjusting the reflection angle of the light emitted by the chip 3, and adjusting the luminous flux of the package structure.

Example 2

Referring to fig. 5, the difference between this embodiment and embodiment 1 is that two opposite inner sidewalls of the lower end of the ventilation hood 103 are respectively and fixedly connected with an anti-falling block 1032, two opposite sides of the outer peripheral wall of the accommodating box 7 are respectively provided with a lifting groove 73 arranged along the axial direction of the accommodating box 7, the anti-falling block 1032 and the lifting groove 73 are slidably matched, two opposite sides of the upper end of the accommodating box 7 are respectively provided with a fixing groove 74, one fixing groove 74 is communicated with the upper end of one lifting groove 73, the two fixing grooves 74 are arranged along the circumferential side of the accommodating box 7 in the same direction, and the anti-falling block 1032 and the fixing grooves 74 are slidably matched.

A set of fixing members 8 are provided between one fixing groove 74 and one anti-falling block 1032, and the fixing members 8 are used to fix the position of the anti-falling block 1032 in the fixing groove 74. The fixing member 8 includes a first magnet piece 81 and a second magnet piece 82, the first magnet piece 81 is adhered to the inner sidewall of the fixing groove 74 far from the lifting groove 73, the second magnet piece 82 is adhered to the sidewall of the anti-falling block 1032 near the fixing groove 74, and the first magnet piece 81 and the second magnet piece 82 are magnetically attracted to each other.

When the anti-drop block 1032 slides to the top end of the lifting groove 73, the base 1 is rotated to enable the anti-drop block 1032 to slide into the fixing groove 74, and the first magnet piece 81 and the second magnet piece 82 attract each other to fix the position of the anti-drop block 1032 in the fixing groove 74, so that the ventilation through hole 104 is exposed, thereby realizing the heat dissipation work of the chip 3; be used for rotating and hold case 7, make first magnet piece 81 and the separation of second magnet piece 82, make anticreep piece 1032 slide in fixed slot 74 to rotate and hold case 7 and make anticreep piece 1032 move to lift groove 73 department, the base 1 that slides down can realize holding in case 7 accomodates into ventilation hood 103, convenient operation, swift.

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.