CN113068346A - Microelectronic positioning device - Google Patents

Microelectronic positioning device Download PDF

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Publication number
CN113068346A
CN113068346A CN202110337449.7A CN202110337449A CN113068346A CN 113068346 A CN113068346 A CN 113068346A CN 202110337449 A CN202110337449 A CN 202110337449A CN 113068346 A CN113068346 A CN 113068346A
Authority
CN
China
Prior art keywords
groove
fixedly connected
baffle
gear
microelectronic
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202110337449.7A
Other languages
Chinese (zh)
Inventor
李伟
解义全
胡文仙
杨瀚
冯佳霖
何文瑞
黄子鉴
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Chengdu College of University of Electronic Science and Technology of China
Original Assignee
Chengdu College of University of Electronic Science and Technology of China
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Chengdu College of University of Electronic Science and Technology of China filed Critical Chengdu College of University of Electronic Science and Technology of China
Priority to CN202110337449.7A priority Critical patent/CN113068346A/en
Publication of CN113068346A publication Critical patent/CN113068346A/en
Pending legal-status Critical Current

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    • HELECTRICITY
    • H05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05KPRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K5/00Casings, cabinets or drawers for electric apparatus
    • H05K5/02Details
    • H05K5/0217Mechanical details of casings
    • HELECTRICITY
    • H05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05KPRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K5/00Casings, cabinets or drawers for electric apparatus
    • H05K5/02Details
    • H05K5/0213Venting apertures; Constructional details thereof
    • HELECTRICITY
    • H05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05KPRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K7/00Constructional details common to different types of electric apparatus
    • H05K7/20Modifications to facilitate cooling, ventilating, or heating
    • H05K7/20009Modifications to facilitate cooling, ventilating, or heating using a gaseous coolant in electronic enclosures
    • H05K7/20127Natural convection

Abstract

The invention discloses a microelectronic positioning device, wherein an adjusting mechanism comprises a first through groove, a second through groove, a rotating body, a first rotating shaft and a moving mechanism, a first baffle and a second baffle are fixedly connected to the outer surface of the rotating body respectively, and a second rotating shaft is fixedly connected to the front surface of the rotating body. This microelectronic positioning device, through first logical groove, the second leads to the groove, the rotator, first pivot, moving mechanism, first baffle, the second pivot, the cooperation of first gear and second gear is used, the motion that utilizes moving mechanism makes the second gear take place to rotate, under the meshing transmission of second gear and first gear, cause first baffle and second baffle rotatory, thereby realize opening and closing first logical groove and second logical groove, can not only dispel the heat, can also prevent dust, it does not have radiating function to have solved current positioner, influence the problem of use.

Description

Microelectronic positioning device
Technical Field
The invention relates to the technical field of microelectronics, in particular to a microelectronic positioning device.
Background
Microelectronics is a new technology developed with integrated circuits, especially very large scale integrated circuits. The microelectronic technology includes a series of special technologies such as system circuit design, device physics, process technology, material preparation, automatic test, packaging and assembly, and is the sum of all process technologies in microelectronics. The integrated circuit technology is that through a series of specific processing technologies, active devices such as transistors and diodes and passive devices such as resistors and capacitors are interconnected according to a specific circuit, and are integrated on a semiconductor single crystal wafer to execute specific circuit or system functions. Microelectronics have evolved and developed during the microminiaturization and miniaturization of electronic circuits and systems. Microelectronics is the core technology of high technology and information industry. The microelectronics industry is the fundamental industry and has developed so rapidly that it is associated with its extremely high penetration in addition to the great technical contribution to the national economy.
The existing microelectronic positioning device is composed of a shell and components inside the shell, and the positioning device of the microelectronic positioning device can achieve the positioning and fixing functions of the shell, but the internal components inside the shell can generate heat when working, and the existing positioning device does not have the heat dissipation function and influences the use, so that the invention provides the microelectronic positioning device to solve the problems.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides a microelectronic positioning device, which solves the problem that the use is influenced because the conventional positioning device does not have a heat dissipation function.
In order to achieve the purpose, the invention is realized by the following technical scheme: the utility model provides a microelectronic positioning device, includes main part and lid, the top fixedly connected with upper junction plate of main part, the bottom fixedly connected with lower connecting plate of main part, one side of main part is run through and is seted up the through-hole, be provided with adjustment mechanism in the main part.
Adjustment mechanism includes that first logical groove, second lead to groove, rotator, first pivot and moving mechanism, the surface difference fixedly connected with first baffle and the second baffle of rotator, the positive fixedly connected with second pivot of rotator, the first gear of back fixedly connected with of rotator, the surface fixedly connected with second gear of first pivot, mesh between second gear and the first gear, swing joint between moving mechanism and the second gear, the front end of first pivot and second pivot all rotates with the front of main part inner wall to be connected, first logical groove and second lead to the groove and all run through the front of seting up in the main part.
Preferably, the moving mechanism comprises a moving plate, teeth are formed in the top of the moving plate, the teeth are matched with the second gear, a connecting rod is fixedly connected to one side of the moving plate, a connecting block is fixedly connected to one end of the connecting rod, and the bottom of the moving plate is connected with the bottom of the inner wall of the main body in a sliding mode.
Preferably, the opposite side fixedly connected with riser of movable plate, one side fixedly connected with reset spring of riser, reset spring's one end and one side fixed connection of main part inner wall, the bottom fixedly connected with fixed plate of main part inner wall.
Preferably, the size of first baffle is greater than the bore of first logical groove, the size of second baffle is greater than the bore of second logical groove, the second gear is located first gear under, the front of first baffle and second baffle is laminated with the front of main part inner wall.
Preferably, a first sliding groove is formed in the top of the connecting block in a penetrating mode, a fixing shaft is fixedly connected to the inside of the first sliding groove, a sliding plate is connected to the inside of the first sliding groove in a sliding mode, a second sliding groove is formed in one side of the sliding plate in a penetrating mode, and the inside of the second sliding groove is matched with the outer surface of the fixing shaft.
Preferably, the fixed slot has been seted up to one side at lower connecting plate top, the inside of fixed slot and the bottom looks adaptation of slide, the top fixedly connected with limiting plate of slide, the size of limiting plate is greater than the bore of first spout.
Preferably, the bottom of the fixed plate is provided with a limiting groove, two sides of the limiting groove cavity are arranged in a penetrating mode, and the inner portion of the limiting groove is matched with the outer surface of the moving plate.
Preferably, the inside of through-hole and the surface looks adaptation of connecting rod, first logical groove and second logical groove symmetry set up, first baffle and second baffle set up along the surface bilateral symmetry of rotator.
Advantageous effects
The invention provides a microelectronic positioning device. Compared with the prior art, the method has the following beneficial effects:
(1) the microelectronic positioning device comprises an adjusting mechanism, a rotating body, a first rotating shaft and a moving mechanism, wherein the adjusting mechanism comprises a first through groove, a second through groove, the rotating body, the first rotating shaft and the moving mechanism, a first baffle and a second baffle are fixedly connected to the outer surface of the rotating body respectively, a second rotating shaft is fixedly connected to the front surface of the rotating body, a first gear is fixedly connected to the back surface of the rotating body, a second gear is fixedly connected to the outer surface of the first rotating shaft, the second gear is meshed with the first gear, the moving mechanism is movably connected with the second gear, the front ends of the first rotating shaft and the second rotating shaft are rotatably connected with the front surface of the inner wall of a main body, the first through groove and the second through groove penetrate through the front surface of the main body, the second gear is rotated by the cooperation of the first through groove, the second through groove, the rotating body, the first rotating shaft, the moving mechanism, the first baffle, the second rotating, under the meshing transmission of second gear and first gear, cause first baffle and second baffle rotation to the realization is opened and is closed first logical groove and second logical groove, can not only dispel the heat, can also prevent dust, has solved current positioner and has not had radiating function, influences the problem of use.
(2) This microelectronic positioning device, through the opposite side fixedly connected with riser at the movable plate, one side fixedly connected with reset spring of riser, reset spring's one end and one side fixed connection of main part inner wall, the bottom fixedly connected with fixed plate of main part inner wall, the spacing groove has been seted up to the bottom of fixed plate, the both sides of spacing groove cavity all are and run through the setting, the inside of spacing groove and the surface looks adaptation of movable plate, through the riser, reset spring, the cooperation of fixed plate and spacing groove is used, utilize riser and reset spring to be favorable to carrying out the effect of restoring to the throne to first baffle and second baffle, utilize fixed plate and spacing groove to be favorable to improving moving mechanism motion stability.
(3) This microelectronics positioner, first spout has been seted up through running through at the top of connecting block, the inside fixedly connected with fixed axle of first spout, the inside sliding connection of first spout has the slide, the second spout has been seted up through one side of slide, the inside of second spout and the surface looks adaptation of fixed axle, the fixed slot has been seted up to one side at lower connecting plate top, the inside of fixed slot and the bottom looks adaptation of slide, the top fixedly connected with limiting plate of slide, the size of limiting plate is greater than the bore of first spout, through first spout, the fixed axle, the slide, the cooperation of second spout and fixed slot is used, be favorable to carrying out the fixed action to the movable plate, thereby conveniently open first logical groove and second logical groove.
Drawings
FIG. 1 is a front view of the internal structure of the present invention;
FIG. 2 is a front view of the external mechanism of the present invention;
FIG. 3 is a partial cross-sectional view taken at A of FIG. 1 in accordance with the present invention;
FIG. 4 is a perspective view of a fixation plate of the present invention;
FIG. 5 is a perspective view of the skateboard of the present invention;
FIG. 6 is a top view of the rotating body, the first baffle, the second baffle and the first gear of the present invention;
fig. 7 is a partial enlarged view of the invention at B in fig. 2.
In the figure: 1-main body, 2-upper connecting plate, 3-lower connecting plate, 4-adjusting mechanism, 401-first through groove, 402-second through groove, 403-rotating body, 404-first rotating shaft, 405-moving mechanism, 4051-moving plate, 4052-tooth, 4053-connecting rod, 4054-connecting block, 406-first baffle, 407-second baffle, 408-second rotating shaft, 409-first gear, 410-second gear, 5-vertical plate, 6-return spring, 7-fixing plate, 8-first sliding groove, 9-fixing shaft, 10-sliding plate, 11-second sliding groove, 12-fixing groove, 13-limiting plate, 14-limiting groove, 15-cover body and 16-through hole.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-7, the present invention provides a technical solution: a microelectronic positioning device comprises a main body 1 and a cover body 15, wherein the top of the main body 1 is fixedly connected with an upper connecting plate 2, the bottom of the main body 1 is fixedly connected with a lower connecting plate 3, one side of the top of the lower connecting plate 3 is provided with a fixed groove 12, the inside of the fixed groove 12 is matched with the bottom of a sliding plate 10, the top of the sliding plate 10 is fixedly connected with a limiting plate 13, the limiting plate 13 is arranged to facilitate the sliding plate 10 to be taken out of the fixed groove 12, the size of the limiting plate 13 is larger than the caliber of a first sliding groove 8, through the cooperation of the first sliding groove 8, a fixed shaft 9, the sliding plate 10, a second sliding groove 11 and the fixed groove 12, the fixing effect on a 4051 moving plate is facilitated, so that a first through groove 401 and a second through groove 402 can be conveniently opened, one side of the main body 1 is provided with a through hole 16, the, the first shutter 406 and the second shutter 407 are symmetrically disposed along the outer surface of the rotating body 403, and the main body 1 is provided with the adjustment mechanism 4; the adjusting mechanism 4 comprises a first through groove 401, a second through groove 402, a rotating body 403, a first rotating shaft 404 and a moving mechanism 405, wherein the moving mechanism 405 comprises a moving plate 4051, the other side of the moving plate 4051 is fixedly connected with a vertical plate 5, one side of the vertical plate 5 is fixedly connected with a return spring 6, one end of the return spring 6 is fixedly connected with one side of the inner wall of the main body 1, the bottom of the inner wall of the main body 1 is fixedly connected with a fixed plate 7, the vertical plate 5, the return spring 6, the fixed plate 7 and the limiting groove 14 are matched for use, the vertical plate 5 and the return spring 6 are favorable for resetting the first baffle 406 and the second baffle 407, the fixed plate 7 and the limiting groove 14 are favorable for improving the motion stability of the moving mechanism 405, the limiting groove 14 is formed in the bottom of the fixed plate 7, two sides of a groove cavity of the moving plate of the limiting, the top of the moving plate 4051 is provided with teeth 4052, the teeth 4052 are matched with the second gear 410, one side of the moving plate 4051 is fixedly connected with a connecting rod 4053, one end of the connecting rod 4053 is fixedly connected with a connecting block 4054, the top of the connecting block 4054 is provided with a first chute 8 in a penetrating manner, the inside of the first chute 8 is fixedly connected with a fixed shaft 9, the inside of the first chute 8 is slidably connected with a sliding plate 10, one side of the sliding plate 10 is provided with a second chute 11 in a penetrating manner, the inside of the second chute 11 is matched with the outer surface of the fixed shaft 9, the bottom of the moving plate 4051 is slidably connected with the bottom of the inner wall of the main body 1, the outer surface of the rotating body 403 is fixedly connected with a first baffle 406 and a second baffle 407 respectively, the size of the first baffle 406 is larger than the diameter of the first through groove 401, the size of the second baffle 407 is larger than, the front surfaces of the first baffle plate 406 and the second baffle plate 407 are attached to the front surface of the inner wall of the main body 1, the front surface of the rotating body 403 is fixedly connected with a second rotating shaft 408, the back surface of the rotating body 403 is fixedly connected with a first gear 409, the outer surface of the first rotating shaft 404 is fixedly connected with a second gear 410, the second gear 410 is meshed with the first gear 409, the moving mechanism 405 is movably connected with the second gear 410, the front ends of the first rotating shaft 404 and the second rotating shaft 408 are rotatably connected with the front surface of the inner wall of the main body 1, the first through groove 401 and the second through groove 402 are both arranged on the front surface of the main body 1 in a penetrating manner, the second through groove 401 and the second through groove 402, the rotating body 403, the first rotating shaft 404, the moving mechanism 405, the first baffle plate 406, the second baffle plate 407, the second rotating shaft 408, the first gear 409 and the second gear 410 are matched for use, and the second gear 410, under the meshing transmission of second gear 410 and first gear 409, cause first baffle 406 and second baffle 407 to rotate to the realization is opened and is closed first logical groove 401 and second logical groove 402, can not only dispel the heat, can also prevent dust, has solved current positioner and has not had radiating function, influences the problem of using.
And those not described in detail in this specification are well within the skill of those in the art.
In operation, by pulling the connecting block 4054, the connecting rod 4053 drives the moving plate 4051 to move, and the transmission action between the teeth 4052 and the second gear 410 is utilized, so that the second gear 410 rotates, and the meshing action between the second gear 410 and the first gear 409 is utilized, so that the first gear 409 rotates, and therefore, the rotating body 403 rotates, so as to drive the first baffle 406 and the second baffle 407 to rotate, so that the first through groove 401 and the second through groove 402 lose the shielding action of the first baffle 406 and the second baffle 407, so that the first through groove 401 and the second through groove 402 are in an open state, at this time, the return spring 6 is in an extended state, and the connecting block 4054 moves to be right above the fixed groove 12, under the action of gravity, the sliding plate 10 drops on the fixed groove 12, so as to perform a fixed limiting action on the moving plate 4051, at this time, the heat is dissipated by the first through groove 401 and the second through groove 402, utilize limiting plate 13 to take out slide 10 from fixed slot 12, and then under reset spring 6's reset effect for movable plate 4051 resets, consequently, first baffle 406 and second baffle 407 shelter from first logical groove 401 and second logical groove 402, thereby realize opening and closing first logical groove 401 and second logical groove 402, can not only dispel the heat, can also prevent dust, it does not have radiating function to have solved current positioner, influences the problem of using.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (8)

1. A microelectronic positioning device, comprising a main body (1) and a cover body (15), wherein an upper connecting plate (2) is fixedly connected to the top of the main body (1), and a lower connecting plate (3) is fixedly connected to the bottom of the main body (1), and is characterized in that: a through hole (16) is formed in one side of the main body (1) in a penetrating mode, and an adjusting mechanism (4) is arranged on the main body (1);
the adjusting mechanism (4) comprises a first through groove (401), a second through groove (402), a rotating body (403), a first rotating shaft (404) and a moving mechanism (405), the outer surface of the rotating body (403) is fixedly connected with a first baffle (406) and a second baffle (407) respectively, the front surface of the rotating body (403) is fixedly connected with a second rotating shaft (408), the back surface of the rotating body (403) is fixedly connected with a first gear (409), the outer surface of the first rotating shaft (404) is fixedly connected with a second gear (410), the second gear (410) is meshed with the first gear (409), the moving mechanism (405) is movably connected with the second gear (410), the front ends of the first rotating shaft (404) and the second rotating shaft (408) are rotatably connected with the front surface of the inner wall of the main body (1), the first through groove (401) and the second through groove (402) penetrate through the front face of the main body (1).
2. The microelectronic positioning device of claim 1, wherein: moving mechanism (405) includes movable plate (4051), tooth (4052) have been seted up at the top of movable plate (4051), looks adaptation between tooth (4052) and second gear (410), one side fixedly connected with connecting rod (4053) of movable plate (4051), the one end fixedly connected with connecting block (4054) of connecting rod (4053), the bottom sliding connection of the bottom of movable plate (4051) and main part (1) inner wall.
3. The microelectronic positioning device of claim 1, wherein: the opposite side fixedly connected with riser (5) of movable plate (4051), one side fixedly connected with reset spring (6) of riser (5), one end of reset spring (6) and one side fixed connection of main part (1) inner wall, the bottom fixedly connected with fixed plate (7) of main part (1) inner wall.
4. The microelectronic positioning device of claim 1, wherein: the size of the first baffle (406) is larger than the caliber of the first through groove (401), the size of the second baffle (407) is larger than the caliber of the second through groove (402), the second gear (410) is located right below the first gear (409), and the front surfaces of the first baffle (406) and the second baffle (407) are attached to the front surface of the inner wall of the main body (1).
5. A microelectronic positioning device as claimed in claim 2, wherein: first spout (8) have been seted up in the top of connecting block (4054) runs through, the inside fixedly connected with fixed axle (9) of first spout (8), the inside sliding connection of first spout (8) has slide (10), one side of slide (10) runs through and has seted up second spout (11), the inside of second spout (11) and the surface looks adaptation of fixed axle (9).
6. The microelectronic positioning device of claim 1, wherein: fixed slot (12) have been seted up to one side at lower connecting plate (3) top, the inside of fixed slot (12) and the bottom looks adaptation of slide (10), the top fixedly connected with limiting plate (13) of slide (10), the size of limiting plate (13) is greater than the bore of first spout (8).
7. A microelectronic positioning device as claimed in claim 3, wherein: spacing groove (14) have been seted up to the bottom of fixed plate (7), the both sides of spacing groove (14) vallecular cavity all are to run through the setting, the inside of spacing groove (14) and the surface looks adaptation of movable plate (4051).
8. The microelectronic positioning device of claim 1, wherein: the interior of the through hole (16) is matched with the outer surface of the connecting rod (4053), the first through groove (401) and the second through groove (402) are symmetrically arranged, and the first baffle (406) and the second baffle (407) are symmetrically arranged along the outer surface of the rotating body (403).
CN202110337449.7A 2021-03-30 2021-03-30 Microelectronic positioning device Pending CN113068346A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202110337449.7A CN113068346A (en) 2021-03-30 2021-03-30 Microelectronic positioning device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202110337449.7A CN113068346A (en) 2021-03-30 2021-03-30 Microelectronic positioning device

Publications (1)

Publication Number Publication Date
CN113068346A true CN113068346A (en) 2021-07-02

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CN202110337449.7A Pending CN113068346A (en) 2021-03-30 2021-03-30 Microelectronic positioning device

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Publication number Priority date Publication date Assignee Title
US6730891B1 (en) * 2002-07-03 2004-05-04 Larry Redmon Over-temp safety device
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CN106786061A (en) * 2017-01-16 2017-05-31 长泰品原电子科技有限公司 A kind of distribution box with high heat dispersion and water-resistant performance
CN108429383A (en) * 2018-05-20 2018-08-21 皖西学院 A kind of direct current generator with self-radiating
CN208093453U (en) * 2018-05-09 2018-11-13 宁波甬友电子有限公司 A kind of water proof type relay
CN208956346U (en) * 2018-11-15 2019-06-07 上海脉信网络科技有限公司 A kind of mobile terminal with printing function
CN109936960A (en) * 2017-12-18 2019-06-25 庄汉杨 A kind of dust guard of circuit board
CN209571446U (en) * 2018-12-29 2019-11-01 中能锂电科技泰州有限公司 A kind of lithium battery battery case
CN210092664U (en) * 2019-08-21 2020-02-18 山东雪峰电气有限公司 Power distribution box
CN111885866A (en) * 2020-08-14 2020-11-03 广州众悦科技有限公司 Modularized big data scientific research platform
CN212694331U (en) * 2020-08-06 2021-03-12 天津市灵汉科技发展有限公司 Computer software and hardware temperature automatic checkout device

Patent Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6730891B1 (en) * 2002-07-03 2004-05-04 Larry Redmon Over-temp safety device
EP2808226A1 (en) * 2012-01-25 2014-12-03 Mitsubishi Electric Corporation Electric power steering device
CN106786061A (en) * 2017-01-16 2017-05-31 长泰品原电子科技有限公司 A kind of distribution box with high heat dispersion and water-resistant performance
CN109936960A (en) * 2017-12-18 2019-06-25 庄汉杨 A kind of dust guard of circuit board
CN208093453U (en) * 2018-05-09 2018-11-13 宁波甬友电子有限公司 A kind of water proof type relay
CN108429383A (en) * 2018-05-20 2018-08-21 皖西学院 A kind of direct current generator with self-radiating
CN208956346U (en) * 2018-11-15 2019-06-07 上海脉信网络科技有限公司 A kind of mobile terminal with printing function
CN209571446U (en) * 2018-12-29 2019-11-01 中能锂电科技泰州有限公司 A kind of lithium battery battery case
CN210092664U (en) * 2019-08-21 2020-02-18 山东雪峰电气有限公司 Power distribution box
CN212694331U (en) * 2020-08-06 2021-03-12 天津市灵汉科技发展有限公司 Computer software and hardware temperature automatic checkout device
CN111885866A (en) * 2020-08-14 2020-11-03 广州众悦科技有限公司 Modularized big data scientific research platform

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Application publication date: 20210702