WO2021238426A1 - Appareil de stabilisation, module de batterie et appareil électrique - Google Patents

Appareil de stabilisation, module de batterie et appareil électrique Download PDF

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Publication number
WO2021238426A1
WO2021238426A1 PCT/CN2021/086047 CN2021086047W WO2021238426A1 WO 2021238426 A1 WO2021238426 A1 WO 2021238426A1 CN 2021086047 W CN2021086047 W CN 2021086047W WO 2021238426 A1 WO2021238426 A1 WO 2021238426A1
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WO
WIPO (PCT)
Prior art keywords
groove
fixing device
block
circuit board
bracket
Prior art date
Application number
PCT/CN2021/086047
Other languages
English (en)
Chinese (zh)
Inventor
兰天保
李长江
Original Assignee
东莞新能安科技有限公司
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
Priority claimed from CN202010467842.3A external-priority patent/CN111509165A/zh
Priority claimed from CN202020934438.8U external-priority patent/CN212011084U/zh
Application filed by 东莞新能安科技有限公司 filed Critical 东莞新能安科技有限公司
Publication of WO2021238426A1 publication Critical patent/WO2021238426A1/fr

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/10—Primary casings; Jackets or wrappings
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10—Energy storage using batteries

Definitions

  • This application relates to the field of batteries, in particular to a fixing device, a battery module having the fixing device, and an electrical device having the battery module.
  • the fixing device for fixing flexible circuit boards.
  • the fixing device includes a base and a bracket arranged on the base.
  • the fixing device further includes a receiving space, which is provided between the base and the bracket and is used for receiving the flexible circuit board.
  • the fixing device further includes a movable block provided between the base and the support, and the movable block can move toward or away from the support relative to the base, wherein the The accommodating space is arranged between the movable block and the bracket.
  • the base includes a bottom plate and two opposite side plates, the side plates are respectively located on both sides of the bottom plate, the side plates are provided with sliding grooves, and the sides of the movable block are provided with A sliding block matched with the chute.
  • the base includes a limiting block, the limiting block is fixed to the sliding groove, and the sliding block is provided between the limiting block and the bottom plate.
  • the movable block is recessed in the direction of the bracket toward the surface of the bottom plate to form a first groove
  • the first groove is provided with a protruding column
  • the base includes a protrusion provided on the bottom plate.
  • the surface of the protruding portion facing away from the bottom plate is recessed in the direction of the bottom plate to form a second groove
  • the protruding portion is accommodated in the first groove
  • the protruding column is correspondingly accommodated in the Mentioned second groove.
  • the fixing device includes an elastic part, and the elastic part is arranged in the second groove.
  • the elastic portion is a spring, and the height of the spring in a free state is greater than the depth of the second groove.
  • the bracket is provided with a fixing member, the fixing member includes a connecting portion and a hook portion, the connecting portion is protrudingly provided on a surface of the bracket facing the bottom plate, and the hook portion is far away from the connecting portion.
  • One end of the bracket is formed to extend outward, the side plate is provided with an opening, and the hook portion is correspondingly clamped in the opening.
  • the fixing device further includes a first cushion block and a second cushion block, the first cushion block is disposed on the surface of the bracket facing the movable block, and the second cushion block is disposed on the movable block.
  • the block faces the surface of the first cushion block, the accommodating space is provided between the first cushion block and the second cushion block, and the first cushion block and the second cushion block are elastic cushion blocks.
  • a battery module includes a battery module, a circuit board, a flexible circuit board connecting the battery module and the circuit board, and the above-mentioned fixing device, the fixing device is arranged on the circuit board, The flexible circuit board is arranged in the receiving space.
  • An electric device includes the above-mentioned battery module.
  • the fixing device is arranged on the circuit board, and the flexible circuit board is effectively fixed by the cooperation of the base and the bracket, so as to effectively prevent the easy failure and poor communication caused by the suspension of the flexible circuit board.
  • the movable block can be movably arranged on the base and the elastic part cooperate to fix the flexible circuit board together with the bracket, it can effectively prevent the flexible circuit board from being easily placed in the air.
  • problems such as failure and poor communication it also greatly reduces the damage caused by the shaking of the flexible circuit board under vibration conditions.
  • FIG. 1 is a schematic structural diagram of a fixing device according to an embodiment of the application.
  • Fig. 2 is an exploded schematic view of the fixing device shown in Fig. 1.
  • Fig. 3 is a schematic diagram of a part of the structure of the base, the protrusion, the limit block and the protrusion shown in Fig. 2.
  • Fig. 4 is a partial exploded schematic view of the fixing device shown in Fig. 2.
  • Fig. 5 is a schematic partial cross-sectional view taken along the line VI-VI shown in Fig. 1.
  • Fig. 6 is a schematic diagram of the structure of the movable block and the base shown in Fig. 2.
  • FIG. 7 is a schematic structural diagram of a battery module according to an embodiment of the application.
  • FIG. 8 is a schematic diagram of a part of the structure of the battery module shown in FIG. 7.
  • FIG. 9 is a schematic diagram of modules of an electric device according to an embodiment of the application.
  • the second block 15 is the first block 15
  • an embodiment of the present application provides a fixing device 10 for fixing a flexible circuit board 30 (refer to FIG. 7).
  • the fixing device 10 includes a base 11, a bracket 12 and a receiving space 16.
  • the bracket 12 is disposed on the base 11.
  • the accommodating space 16 is provided between the base 11 and the bracket 12 for accommodating the flexible circuit board 30.
  • the fixing device 10 further includes a movable block 13.
  • the movable block 13 is arranged between the base 11 and the support 12.
  • the movable block 13 can move toward or away from the support 12 relative to the base 11.
  • the accommodating space 16 is provided between the movable block 13 and the bracket 12.
  • the base 11 includes a bottom plate 111 and two opposite side plates 112.
  • the two side plates 112 are respectively located on two sides of the bottom plate 111 and form an accommodating space 113 together with the bottom plate 111.
  • the two side plates 112 are respectively provided with sliding grooves 114.
  • the two sliding grooves 114 are arranged opposite to each other.
  • the base 11 and the two side plates 112 are integrally formed.
  • the base 11 and the two side plates 112 are both rectangular.
  • the shapes of the base 11 and the two side plates 112 can be adjusted according to actual needs, and can be regular shapes such as a circle, a diamond, or other irregular shapes.
  • the movable block 13 is accommodated in the accommodating space 113. Two sides of the movable block 13 are respectively provided with sliding blocks 131 matched with the sliding grooves 114.
  • the sliding block 131 is slidably connected to the sliding groove 114, so that the movable block 13 faces or faces away from the base 11 in the thickness direction of the fixing device 10 (that is, the X-axis direction)
  • the stand 12 moves.
  • each sliding groove 114 includes a groove bottom wall 1141 and two opposite groove side walls 1142.
  • the two groove side walls 1142 are respectively located on two sides of the groove bottom wall 1141.
  • the groove bottom wall 1141 and the two groove side walls 1142 both extend from the bottom plate 111 toward the bracket 12.
  • the base 11 further includes a limiting block 115.
  • the limiting block 115 is fixed in the sliding groove 114.
  • the sliding block 131 is provided between the limiting block 115 and the bottom plate 111. In this way, through the setting of the limit block 115, the sliding range of the slider 131 in the sliding groove 114 is limited, so as to ensure that the movable block 13 faces or faces away from the bottom plate 111 within a preset stroke.
  • the bracket 12 slides.
  • each protrusion 116 is provided in each sliding groove 114.
  • Each bump 116 is protrudingly provided at the junction of the groove bottom wall 1141 and the groove side wall 1142.
  • the two bumps 116 are opposed to each other and are spaced apart to form a gap 1161.
  • the limiting block 115 includes a first limiting portion 1151 and a second limiting portion 1152.
  • the first limiting portion 1151 is received in the gap 1161.
  • the second limiting portion 1152 is connected to the first limiting portion 1151 and connected between the two groove side walls 1142. In this way, through the arrangement of the limiting block 115, the sliding groove 114 is divided into a first sliding groove part 1143 and a second sliding groove part 1144.
  • first chute subsection 1143 is close to the bottom plate 111 relative to the second chute subsection 1144.
  • the sliding block 131 is slidably connected to the first sliding groove sub-part 1143.
  • the limiting block 115 is in interference fit with the protrusion 116 and the two groove sidewalls 1142.
  • the limiting block 115 can be omitted according to actual needs.
  • the movable block 13 includes a first surface 132 facing the bottom plate 111.
  • the first surface 132 is recessed toward the bracket 12 to form a first groove 133.
  • a protrusion 134 is provided in the first groove 133.
  • the base 11 further includes a protrusion 117.
  • the protruding part 117 protrudes from the bottom plate 111 and is located between the two side plates 112.
  • the protruding portion 117 includes a second surface 1171 facing away from the bottom plate 111.
  • the second surface 1171 is recessed toward the bottom plate 111 to form a second groove 1172.
  • the protrusion 117 is accommodated in the first groove 133, and the protrusion 134 is correspondingly accommodated in the second groove 1172, so as to be in the length direction of the fixing device 10 (ie, in the Y-axis direction). ) And the width direction of the fixing device 10 (ie, the Z-axis direction) to limit the movement of the movable block 13.
  • the height of the protrusion 134 and the height of the protrusion 117 are not higher than the depth of the first groove 133.
  • the first surface 132 is provided with two first grooves 133.
  • the two first grooves 133 are respectively located on two sides of the first surface 132 close to the sliding block 131.
  • the bottom plate 111 is provided with two protrusions 117 corresponding to the first groove 133.
  • the number of the first groove 133 and the number of the protrusion 117 can be adjusted according to actual needs, and can be one, three, four, and so on.
  • the first groove 133 includes a first groove bottom surface 1331 and a first groove side surface 1332 surrounding the periphery of the first groove bottom surface 1331.
  • the protruding pillar 134 is protruded from the bottom surface 1331 of the first groove.
  • the second groove 1172 includes a second groove bottom surface 1173 and a second groove side surface 1174 surrounding the periphery of the second groove bottom surface 1173.
  • the shapes of the first groove 133, the protrusion 134, and the second groove 1172 are not limited to regular shapes such as a circle, a rectangle, or other irregular shapes.
  • the fixing device 10 further includes an elastic part 118.
  • the elastic portion 118 is located between the bottom plate 111 and the movable block 13, and is used to support the movable block 13 to cooperate with the bracket 12 to fix the flexible circuit board 30, and to ensure that the movable block 13 is in position. Further, when the elastic portion 118 is compressed to a desired position, the stroke of the fixing device 10 in the thickness direction can restrict the movable block 13 from moving toward the support 12.
  • the elastic portion 118 has a hollow ring structure, and includes a first end portion 1181 and a second end portion 1182 facing away from the first end portion 1181.
  • the elastic portion 118 is disposed in the second groove 1172.
  • a groove 133, and the protrusion 134 penetrates the elastic portion 118.
  • the first end 1181 of the elastic portion 118 abuts the first groove bottom surface 1331
  • the second end 1182 of the elastic portion 118 abuts the second groove bottom surface 1173
  • the elastic portion 118 The height of is greater than the depth of the first groove 133.
  • the height of the protrusion 134 and the height of the protruding portion 117 are not higher than the depth of the first groove 133, so that the movable block 13 is supported by the elastic portion 118 to interact with the
  • the bracket 12 is in contact with each other, and the movable block 13 and the bottom plate 111 are spaced apart, so as to ensure the stroke of the movable block 13 in the thickness direction of the fixing device 10.
  • the height of the elastic portion 118 in the free state is greater than the depth of the first groove 133.
  • the free state of the elastic portion 118 refers to the state when the elastic portion 118 is not compressed, that is, the state when the elastic portion 118 is disposed in the second groove 1172.
  • the distance from the first surface 132 to the bottom plate 111 is the stroke of the movable block 13.
  • the elastic portion 118 is a spring.
  • the bracket 12 is fixed to the base 11.
  • the bracket 12 is also provided with two opposite fixing members 121 protrudingly.
  • the fixing member 121 is arranged at both ends of the bracket 12.
  • the bracket 12 is fixed to the base 11 by two fixing members 121.
  • each fixing member 121 includes a connecting portion 1211 and a hook portion 1212.
  • the connecting portion 1211 protrudes from the surface of the bracket 12 facing the bottom plate 111.
  • the hook portion 1212 is formed by extending one end of the connecting portion 1211 away from the bracket 12 outwardly.
  • an opening 1145 is provided on the bottom wall 1141 of the second chute branch 1144. The hook portion 1212 is correspondingly snapped into the opening 1145 so that the bracket 12 is fixed to the base 11.
  • the fixing member 121 may be omitted. In this way, the bracket 12 can be fixed to the side plate 112 of the base 11 by welding, bonding, screwing, or other methods.
  • the fixing device 10 further includes a first block 14 and a second block 15.
  • the first cushion block 14 is disposed on the surface of the support 12 facing the movable block 13, and the second cushion block 15 is disposed on the surface of the movable block 13 facing the first cushion block 14.
  • the accommodating space 16 is provided between the first cushion block 14 and the second cushion block 15.
  • the flexible circuit board 30 is fixed between the first spacer block 14 and the second spacer block 15.
  • the first spacer block 14 and the second spacer block 15 are elastic spacer blocks. Protect the flexible circuit board 30.
  • first block 14 and the second block 15 adopt the design of elastic block, which can make the first block 14 and the second block 15 be in the movable block 13 and the The support 12 is compressed, and when the movable block 13 moves up and down, the elastic pad itself has elastic properties, so that the flexible circuit board 30 can be firmly clamped to the first when the movable block 13 moves. Between the cushion block 14 and the second cushion block 15.
  • first block 14 and the second block 15 may be omitted.
  • the movable block 13 includes a third surface 135 facing away from the first surface 132.
  • the third surface 135 is provided with two third grooves 136.
  • the second cushion block 15 is convexly provided with a mating portion 151 that cooperates with the third groove 136.
  • the matching portion 151 is correspondingly clamped in the third groove 136 to fix the second cushion block 15 to the third surface 135 of the movable block 13.
  • the second spacer block 15 may be fixed to the third surface 135 of the movable block 13 by welding, bonding, screwing, or the like.
  • first cushion block 14 and the bracket 12 can be connected by clamping, welding, bonding, screwing, or the like.
  • the present application also provides a battery module 100.
  • the battery module 100 includes the fixing device 10, a battery cell module 20, a circuit board 22, and the flexible circuit board 30 connecting the battery module 20 and the circuit board 22.
  • the fixing device 10 is disposed on the circuit board 22.
  • the fixing device 10 is fixed to the circuit board 22 by screws.
  • the fixing device 10 can also be fixed to the circuit board 22 by a buckle.
  • one end of the flexible circuit board 30 is connected to the tab 21 on the cell module 20 to collect signals such as voltage and temperature of the cell module 20.
  • the flexible circuit The other end of the board 30 is connected to the circuit board 22 on the cell module 20.
  • the circuit board 22 and the tabs 21 are respectively located on different sides of the battery module 20, and the flexible circuit board 30 needs to be bent 90 degrees to make the two ends of the flexible circuit board 30 and The tab 21 and the circuit board 22 are connected.
  • the fixing device 10 is used to fix the flexible circuit board 30 at the bend between the bracket 12 and the movable block 13 to avoid easy failure caused by the flexible circuit board 30 at the bend being placed in the air. Problems such as poor communication.
  • the height of the flexible circuit board 30 is the same every time. It may be necessary to adjust the height of the flexible circuit board 30 up and down to ensure that the flexible circuit board 30 and the tabs 21 and/or the circuit board 22, and the arrangement of the elastic part 118 ensures the movement stroke of the movable block 13, so as to adjust the flexible circuit board 30 and the connection part (ie, the tab 21 and/or The level of the circuit board 22) solves the problems caused by the assembly tolerance of the battery module 100 during the production process, so that the assembly of the battery module 100 is more flexible and convenient.
  • the design that the movable block 13 can be movably arranged on the base 11 cooperates with the elastic portion 118 to fix the flexible circuit board 30 together with the bracket 12, thereby greatly reducing vibration conditions.
  • the damage caused by the shaking of the lower flexible circuit board 30 can effectively prevent problems such as easy failure and poor communication caused by the flexible circuit board 30 being placed in the air.
  • the flexible circuit board 30 can be bent and fixed with the help of the fixing device 10, and the connection reliability of the flexible circuit board 30 can be improved.
  • the fixing device 10 also has the advantages of simple installation and simple operation.
  • Step 1 Fix the base 11 of the above-mentioned fixing device 10 to the circuit board 22 by screws.
  • Step two the flexible circuit board 30 is set on the second cushion block 15. 7 and 8, one end of the flexible circuit board 30 is connected to the tab 21 on the cell module 20, and the other end of the flexible circuit board 30 is close to but not connected to the circuit board 22 temporarily.
  • Step 3 With the help of the bracket 12, the movable block 13 is pressed down in the direction of the bottom plate 111 along the thickness direction of the fixing device 10, the elastic portion 118 is continuously compressed by the force, and the movable block 13 continuously moves toward the bottom plate 111. Approach until the other end of the flexible circuit board 30 and the circuit board 22 are approximately at the same level. Then, the fixing members 121 at both ends of the bracket 12 are correspondingly connected to the opening 1145 on the base 11 to fix the bracket 12 to the base 11. At this time, the second pad on the movable block 13 The block 15 cooperates with the first cushion block 14 on the bracket 12 to clamp and fix the flexible circuit board 30 together. In other embodiments, the height of the flexible circuit board 30 can be adjusted according to actual conditions, and it does not necessarily need to be at the same level as the circuit board 22.
  • Step 4 Connect the other end of the flexible circuit board 30 to the circuit board 22.
  • the flexible circuit board 30 can be adjusted by adjusting the movable block 13 up and down.
  • the level with the circuit board 22 ensures the connection between the flexible circuit board 30 and the circuit board 22.
  • the other end of the flexible circuit board 30 may be connected to the circuit board 22 in step 2. Not limited.
  • the electrical device 1000 includes the battery module 100 described above.
  • the electrical device 1000 may be a mobile electronic device, an energy storage device, an electric vehicle, a hybrid electric vehicle, and the like.
  • the mobile electronic device may be a mobile phone, a wearable electronic device, a tablet computer, a notebook computer, and the like.

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Battery Mounting, Suspending (AREA)

Abstract

L'invention concerne un appareil de stabilisation (10) qui est utilisé pour stabiliser une carte de circuit imprimé souple (30). L'appareil de stabilisation (10) comprend une base (11) et un cadre de support (12) disposé sur la base (11). L'appareil de stabilisation (10) comprend en outre un bloc mobile (13) et un espace de réception (16). Le bloc mobile (13) est disposé entre la base (10) et le cadre de support (12). Le bloc mobile (13) peut se rapprocher ou s'éloigner du cadre de support (12) par rapport à la base (11). L'espace de réception (16) est disposé entre le bloc mobile (13) et le cadre de support (12), et est utilisé pour recevoir la carte de circuit imprimé souple (30). L'invention concerne en outre un module de batterie (100) qui comprend l'appareil de stabilisation (10) et un appareil électrique (1000) qui comprend le module de batterie (100). Grâce à l'appareil de stabilisation (10) qui stabilise efficacement la carte de circuit souple (30), des problèmes tels qu'une mauvaise communication et une propension à la défaillance causée par la suspension de la carte de circuit souple (30) sont ainsi efficacement évités.
PCT/CN2021/086047 2020-05-28 2021-04-09 Appareil de stabilisation, module de batterie et appareil électrique WO2021238426A1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
CN202020934438.8 2020-05-28
CN202010467842.3A CN111509165A (zh) 2020-05-28 2020-05-28 固定装置、电池模组及用电装置
CN202010467842.3 2020-05-28
CN202020934438.8U CN212011084U (zh) 2020-05-28 2020-05-28 固定装置及具有所述固定装置的电池模组

Publications (1)

Publication Number Publication Date
WO2021238426A1 true WO2021238426A1 (fr) 2021-12-02

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2021/086047 WO2021238426A1 (fr) 2020-05-28 2021-04-09 Appareil de stabilisation, module de batterie et appareil électrique

Country Status (1)

Country Link
WO (1) WO2021238426A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115360403A (zh) * 2022-09-28 2022-11-18 厦门海辰储能科技股份有限公司 一种电池模组的装配工装
CN116723665A (zh) * 2023-08-03 2023-09-08 常州磐诺仪器有限公司 一种放电控制系统及工作方法

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI310996B (fr) * 2005-11-17 2009-06-11 Yamaichi Electronics Co Ltd
CN207150994U (zh) * 2017-07-19 2018-03-27 江西凯强实业有限公司 一种柔性电路板的加固装置
CN208674550U (zh) * 2018-09-04 2019-03-29 深圳市宗义科技有限公司 一种柔性电路连接装置
CN208754599U (zh) * 2018-03-30 2019-04-16 深圳市致柔电子科技有限公司 一种柔性电路板电磁膜贴合装置
CN111509165A (zh) * 2020-05-28 2020-08-07 东莞新能安科技有限公司 固定装置、电池模组及用电装置
CN212011084U (zh) * 2020-05-28 2020-11-24 东莞新能安科技有限公司 固定装置及具有所述固定装置的电池模组

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI310996B (fr) * 2005-11-17 2009-06-11 Yamaichi Electronics Co Ltd
CN207150994U (zh) * 2017-07-19 2018-03-27 江西凯强实业有限公司 一种柔性电路板的加固装置
CN208754599U (zh) * 2018-03-30 2019-04-16 深圳市致柔电子科技有限公司 一种柔性电路板电磁膜贴合装置
CN208674550U (zh) * 2018-09-04 2019-03-29 深圳市宗义科技有限公司 一种柔性电路连接装置
CN111509165A (zh) * 2020-05-28 2020-08-07 东莞新能安科技有限公司 固定装置、电池模组及用电装置
CN212011084U (zh) * 2020-05-28 2020-11-24 东莞新能安科技有限公司 固定装置及具有所述固定装置的电池模组

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115360403A (zh) * 2022-09-28 2022-11-18 厦门海辰储能科技股份有限公司 一种电池模组的装配工装
CN116723665A (zh) * 2023-08-03 2023-09-08 常州磐诺仪器有限公司 一种放电控制系统及工作方法
CN116723665B (zh) * 2023-08-03 2023-10-13 常州磐诺仪器有限公司 一种放电控制系统及工作方法

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