CN215449520U

CN215449520U - Acupuncture extrusion equipment

Info

Publication number: CN215449520U
Application number: CN202120463905.8U
Authority: CN
Inventors: 潘逸; 王瑜; 罗涛; 梁涛; 顾陈豪; 吴其宝; 郝丽
Original assignee: Zhejiang Narada Power Source Co Ltd; Hangzhou Nandu Power Technology Co Ltd
Current assignee: Zhejiang Narada Power Source Co Ltd; Hangzhou Nandu Power Technology Co Ltd
Priority date: 2021-03-03
Filing date: 2021-03-03
Publication date: 2022-01-07
Anticipated expiration: 2031-03-03

Abstract

The utility model discloses acupuncture extrusion equipment, which relates to the technical field of lithium batteries and comprises a charge and discharge machine, an acupuncture component, an extrusion component, a detection component and an intelligent terminal; the lithium battery pack charging and discharging device comprises a charging and discharging machine, a lithium battery, a detection assembly, an intelligent terminal and an extrusion assembly, wherein the charging and discharging machine is connected with the lithium battery, the lithium battery is connected with the detection assembly, the detection assembly is connected with the intelligent terminal, the acupuncture assembly is used for performing acupuncture on the lithium battery, and the extrusion assembly is used for performing extrusion on the lithium battery. The utility model has the technical effect that the utility model can realize the performance parameter detection of the whole process of the lithium battery in the charging and discharging process and after the charging is finished.

Description

Acupuncture extrusion equipment

Technical Field

The utility model relates to the technical field of lithium batteries, in particular to a needling extrusion device.

Background

In order to test the safety performance of the lithium battery, the lithium battery can be subjected to acupuncture or extrusion testing, the acupuncture mainly comprises the steps that a puncture needle pierces the lithium battery to cause short circuit of a positive electrode and a negative electrode, the condition of short circuit inside the lithium battery is simulated, and the extrusion mainly comprises the steps of extruding the lithium battery through an extrusion plate and simulating the damage condition of the deformed lithium battery.

In the security test standard of relevant lithium cell, acupuncture or extrusion test require the lithium cell sample to fill the back of electricity, carry out acupuncture or extrusion to the sample again, relevant acupuncture extrusion equipment, all only single acupuncture or extrusion function, although accord with the test requirement of standard, performance parameter when testing the lithium cell detects not comprehensively, and only be limited to whether qualified of test result, can't combine together acupuncture or extrusion action and charge-discharge process, fail to carry out expansibility, more deepen, more press close to practical application's test and probe into, for example:

(1) during the electric core acupuncture, the influence on the instantaneous state of the electric core (current and voltage change) is researched, the influence on the electric core acupuncture caused by different acupuncture speeds, different puncture needle diameters, different puncture needle materials and other factors can be further researched, and the safety of the electric core is compared during the charge and discharge acupuncture and after the charge and discharge are finished.

(2) During module acupuncture, under the connected mode of difference, specific acupuncture failure mechanism is different (there is outer short circuit current between the acupuncture electric core when establishing ties, does not have during parallelly connected), through the electric current (utmost point ear collection) between the electric core of current measurement appearance monitoring series connection, through the temperature of the different positions of temperature measurement appearance comparison (the pjncture needle is close to and has outer short circuit current and interior short circuit current in the positive negative pole department, near pjncture needle temperature is higher than other positions).

(3) When receiving the extrusion force among the battery cell charge-discharge process, to the influence of charge-discharge effect, include: the influence of different extrusion forces (standing or dynamic), different extrusion speeds (dynamic), different extrusion surface sizes and the like on the working state of the battery is researched, and the change state of the battery cell in the process from the normal working condition to the extrusion failure can be even researched to explore the cycle performance of the battery cell under different forces under a certain extrusion condition.

SUMMERY OF THE UTILITY MODEL

1. Technical problem to be solved by the utility model

Aiming at the technical problem that the performance of a lithium battery detected by a needling extrusion device is incomplete, the utility model provides the needling extrusion device, which can realize the performance parameter detection of the whole testing process of the lithium battery in the charging and discharging process and after the charging is finished, and is the needling extrusion device which normalizes the complex testing research.

2. Technical scheme

In order to solve the problems, the technical scheme provided by the utility model is as follows:

a acupuncture extrusion device comprises a charge and discharge machine, an acupuncture component, an extrusion component, a detection component and an intelligent terminal;

the lithium battery detection device comprises a charging and discharging machine, a lithium battery, a detection assembly, an intelligent terminal and an extrusion assembly, wherein the charging and discharging machine is connected with the lithium battery, the lithium battery is connected with the detection assembly, the detection assembly is connected with the intelligent terminal, the acupuncture assembly is used for performing acupuncture effect on the lithium battery, and the extrusion assembly is used for performing extrusion effect on the lithium battery.

Optionally, still include workstation and elevating gear, the workstation with elevating gear fixed connection, elevating gear with acupuncture subassembly fixed connection, elevating gear with extrusion subassembly fixed connection, the lithium cell is located on the workstation, the lithium cell with acupuncture subassembly is located same vertical line, perhaps, the lithium cell with extrusion subassembly is located same vertical line.

Optionally, the lifting device comprises a connecting plate, a plurality of screws and a motor, the connecting plate is in threaded connection with the screws, the screws are fixedly connected with the workbench, the motor is in threaded connection with the screws, the connecting plate of the lifting device is detachably connected with the needling component, or the connecting plate of the lifting device is detachably connected with the extrusion component.

Optionally, the acupuncture assembly comprises a first connector and a puncture needle, the connecting plate of the lifting device is detachably connected with one end of the first connector, and the other end of the first connector is detachably connected with the puncture needle.

Optionally, a through hole is formed in the workbench, and the through hole and the puncture needle are located on the same vertical line.

Optionally, the extrusion assembly comprises a second connector and an extrusion plate, the connection plate of the lifting device and one end of the second connector are detachably connected, and the other end of the second connector and the extrusion plate are detachably connected.

Optionally, a standby plate is arranged on the workbench.

Optionally, the detection assembly comprises a current measuring instrument, a voltage measuring instrument, a temperature measuring instrument and a force sensor, the current measuring instrument, the voltage measuring instrument, the temperature measuring instrument and the force sensor are all connected with the lithium battery, and the current measuring instrument, the voltage measuring instrument, the temperature measuring instrument and the force sensor are all connected with the intelligent terminal.

Optionally, the bottom of the workbench is provided with a plurality of universal wheels.

Optionally, a protective cover is arranged on one side of the workbench, and an explosion-proof layer is arranged on the inner wall of the protective cover, so that an explosion-proof cavity is formed in the protective cover.

3. Advantageous effects

Compared with the prior art, the technical scheme provided by the utility model has the following beneficial effects: the method can realize the performance parameter detection of the whole process of the lithium battery in the charging and discharging process and after the charging is finished.

Drawings

Fig. 1 is a schematic structural diagram of a lithium battery needling and extruding device according to an embodiment of the present invention;

FIG. 2 is a schematic structural diagram of a needling assembly according to an embodiment of the present invention;

fig. 3 is a schematic structural diagram of a pressing assembly according to an embodiment of the present invention.

In the figure: 1. a lithium battery; 2. a charge and discharge machine; 3. a needling assembly; 31. a first connector; 32. puncturing needle; 4. an extrusion assembly; 41. a second connector; 42. a pressing plate; 5. a detection component; 51. a current measuring instrument; 52. a voltage measuring instrument; 53. a temperature measuring instrument; 54. a force sensor; 6. a work table; 61. a through hole; 7. a lifting device; 71. a connecting plate; 72. a screw; 8. a universal wheel; 9. a shield.

Detailed Description

For a further understanding of the present invention, reference will now be made in detail to the embodiments illustrated in the drawings.

The present application will be described in further detail with reference to the following drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the relevant invention and are not limiting of the utility model. It should be noted that, for convenience of description, only the portions related to the present invention are shown in the drawings. The terms first, second, and the like in the present invention are provided for convenience of describing the technical solution of the present invention, and have no specific limiting effect, but are all generic terms, and do not limit the technical solution of the present invention. It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. Unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are intended to be inclusive and mean, for example, that they may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art. The technical solutions in the same embodiment and the technical solutions in different embodiments can be arranged and combined to form a new technical solution without contradiction or conflict, and the technical solutions are within the scope of the present invention.

Example 1

With reference to the accompanying drawings 1-3, the utility model provides acupuncture extrusion equipment, which comprises a charge and discharge machine 2, an acupuncture component 3, an extrusion component 4, a detection component 5 and an intelligent terminal, wherein the acupuncture component 3 is arranged on the charge and discharge machine;

charge and discharge machine 2 and lithium cell 1 are connected, and lithium cell 1 and determine module 5 are connected, and determine module 5 and intelligent terminal are connected, and acupuncture subassembly 3 is used for carrying out the acupuncture to lithium cell 1, and extrusion subassembly 4 is used for carrying out the extrusion to lithium cell 1.

Specifically, during acupuncture, firstly, the charge and discharge machine 2 and the detection component 5 are started, meanwhile, the acupuncture component 3 is driven to perform acupuncture on the lithium battery 1, the acupuncture component 3 is stopped in the lithium battery 1 for a period of time, the detection component 5 detects various real-time parameters of the lithium battery 1, including current, voltage, temperature and the like, then the detection component 5 transmits the parameters to the intelligent terminal, and the intelligent terminal analyzes and processes the various parameters;

when the extrusion, at first open charge and discharge machine 2 and determine module 5, simultaneously, order about extrusion subassembly 4 and extrude lithium cell 1, stop the extrusion after lithium cell 1's deflection reaches certain degree, determine module 5 will detect lithium cell 1's various real-time parameter, including electric current, voltage, temperature etc. then, determine module 5 transmits the parameter to intelligent terminal, and intelligent terminal carries out analysis processes to various parameters.

The device can perform needling or extrusion in the charging and discharging processes of the lithium battery 1 and detect the real-time data change of the lithium battery 1; when needing to prick or extrude the lithium cell 1 that has filled the electricity, only need during the operation, connect with charging and discharging machine 2 and lithium cell 1 earlier, wait that lithium cell 1 has filled the electricity after, with charging and discharging machine 2 and lithium cell 1 disconnection again, then, prick or extrude the lithium cell 1 that has filled the electricity. Therefore, the equipment can be used for needling or extruding in the charging and discharging process of the lithium battery 1 and can also be used for needling or extruding after the lithium battery 1 is charged, so that the performance parameter detection of the lithium battery 1 in the charging and discharging process and the full flow after the charging is completed is realized, and the comprehensive test of the performance of the lithium battery 1 is facilitated.

Specifically, still include workstation 6 and elevating gear 7, workstation 6 and elevating gear 7 fixed connection, elevating gear 7 and acupuncture subassembly 3 fixed connection, elevating

gear

7 and 4 fixed connection of extrusion subassembly, lithium cell 1 is located workstation 6, and lithium cell 1 and acupuncture subassembly 3 are located same vertical line, perhaps, lithium cell 1 and extrusion subassembly 4 are located same vertical line. When acupuncture or extrusion, at first put lithium cell 1 on workstation 6 to make lithium cell 1 and acupuncture subassembly 3 or extrusion subassembly 4 be located same vertical on-line, then, order about elevating gear 7 to the removal of lithium cell 1 direction, elevating gear 7 drives acupuncture subassembly 3 or extrusion subassembly 4 and removes to lithium cell 1 direction, and accomplishes acupuncture or extrusion.

Specifically, the lifting device 7 comprises a connecting plate 71, a plurality of screws 72 and a motor, the connecting plate 71 is in threaded connection with the screws 72, the screws 72 are fixedly connected with the workbench 6, the motor is connected with the screws 72, and the connecting plate 71 of the lifting device 7 is detachably connected with the needling component 3 or the connecting plate 71 of the lifting device 7 is detachably connected with the extrusion component 4. When the electric lifting device works, firstly, the motor is started, the motor drives the screw 72 to rotate, and the screw 72 drives the connecting plate 71 to lift. During needling, the connecting plate 71 moves towards the lithium battery 1 and drives the needling component 3 to move towards the lithium battery 1; during the extrusion, the connecting plate 71 moves towards the lithium battery 1, and drives the extrusion assembly 4 to move towards the lithium battery 1.

Specifically, the puncture assembly 3 includes a first connector 31 and a puncture needle 32, the connecting plate 71 of the lifting device 7 is detachably connected to one end of the first connector 31, and the other end of the first connector 31 is detachably connected to the puncture needle 32. In the case of acupuncture, the first connector 31 is attached to the connecting plate 71 of the lifter 7, the puncture needle 32 is attached to the first connector 31, and the lifter 7 moves the first connector 31 and the puncture needle 32 to perform acupuncture.

Specifically, the through hole 61 is formed in the table 6, and the through hole 61 and the puncture needle 32 are located on the same vertical line. After the puncture needle 32 pierces the lithium battery 1, the puncture needle 32 is fitted into the through hole 61 to prevent the puncture needle 32 from contacting the table 6 to damage the table 6 or the puncture needle 32 itself after piercing the lithium battery 1.

Specifically, the pressing assembly 4 includes a second connector 41 and a pressing plate 42, the connecting plate 71 of the lifting device 7 is detachably connected to one end of the second connector 41, and the other end of the second connector 41 is detachably connected to the pressing plate 42. During extrusion, the second connecting head 41 is mounted on the connecting plate 71 of the lifting device 7, the extrusion plate 42 is mounted on the second connecting head 41, and the lifting device 7 drives the second connecting head 41 and the extrusion plate 42 to extrude.

Specifically, when the extrusion is performed, the surface of the working platform 6 may have a recess or a protrusion, and in order to ensure that the surface of the lithium battery 1 is uniformly stressed, a standby plate is arranged on the working platform 6.

Specifically, the detection assembly 5 includes a current measuring instrument 51, a voltage measuring instrument 52, a temperature measuring instrument 53 and a force sensor 54, the current measuring instrument 51, the voltage measuring instrument 52, the temperature measuring instrument 53 and the force sensor 54 are all connected with the lithium battery 1, and the current measuring instrument 51, the voltage measuring instrument 52, the temperature measuring instrument 53 and the force sensor 54 are all connected with the intelligent terminal. The current measuring instrument 51, the voltage measuring instrument 52, the temperature measuring instrument 53 and the force sensor 54 in the detection assembly 5 detect current, voltage, temperature and stress in the charging and discharging processes of the lithium battery 1, the detection assembly 5 transmits parameters to the intelligent terminal, and the intelligent terminal analyzes and processes various parameters.

Specifically, for the convenience of moving equipment, the bottom of the workbench 6 is provided with a plurality of universal wheels 8, rolling friction is used for replacing sliding friction, friction force is reduced beneficially, and the service life of the equipment is prolonged.

Specifically, a protective cover 9 is arranged on one side of the workbench 6, and an explosion-proof layer is arranged on the inner wall of the protective cover 9, so that an explosion-proof cavity is formed in the protective cover 9. If the lithium battery 1 explodes in the test process, the damage of explosion fragments to equipment and operators can be effectively prevented.

The present invention and its embodiments have been described above schematically, without limitation, and what is shown in the drawings is only one of the embodiments of the present invention, and the actual structure is not limited thereto. Therefore, if the person skilled in the art receives the teaching, without departing from the spirit of the utility model, the person skilled in the art shall not inventively design the similar structural modes and embodiments to the technical solution, but shall fall within the scope of the utility model.

Claims

1. The acupuncture extrusion equipment is characterized by comprising a charge and discharge machine, an acupuncture component, an extrusion component, a detection component and an intelligent terminal;

2. The needling extrusion device according to claim 1, further comprising a workbench and a lifting device, wherein the workbench is fixedly connected with the lifting device, the lifting device is fixedly connected with the needling assembly, the lifting device is fixedly connected with the extrusion assembly, the lithium battery is located on the workbench, the lithium battery and the needling assembly are located on the same vertical line, or the lithium battery and the extrusion assembly are located on the same vertical line.

3. A needling extrusion device according to claim 2, wherein the lifting device comprises a connecting plate, a plurality of screws and a motor, the connecting plate is in threaded connection with the screws, the screws are fixedly connected with the worktable, the motor is connected with the screws, the connecting plate of the lifting device is detachably connected with the needling assembly, or the connecting plate of the lifting device is detachably connected with the extrusion assembly.

4. A lancing compression device according to claim 3, wherein the lancing assembly includes a first connector and a puncture needle, the connection plate of the lifting device being removably connected to one end of the first connector, the other end of the first connector being removably connected to the puncture needle.

5. A needle punching press device according to claim 4, wherein said table is provided with a through hole, said through hole and said punching needle being located on the same vertical line.

6. A acupuncture extrusion device according to claim 3, characterized in that the extrusion assembly includes a second connector and an extrusion plate, the connection plate of the lifting device and one end of the second connector are detachably connected, and the other end of the second connector and the extrusion plate are detachably connected.

7. A needle punching press apparatus according to claim 6, wherein a standby plate is provided on said table.

8. The needle punching and extruding device as claimed in claim 1, wherein the detection assembly comprises a current measuring instrument, a voltage measuring instrument, a temperature measuring instrument and a force sensor, the current measuring instrument, the voltage measuring instrument, the temperature measuring instrument and the force sensor are all connected with the lithium battery, and the current measuring instrument, the voltage measuring instrument, the temperature measuring instrument and the force sensor are all connected with an intelligent terminal.

9. A needling extrusion device according to claim 2, characterized in that the bottom of the table is provided with universal wheels.

10. A needling extrusion device according to claim 2, characterized in that a protective cover is arranged on one side of the worktable, and an explosion-proof layer is arranged on the inner wall of the protective cover, so that an explosion-proof cavity is formed in the protective cover.