CN219915735U - Charging and discharging device - Google Patents
Charging and discharging device Download PDFInfo
- Publication number
- CN219915735U CN219915735U CN202321229333.2U CN202321229333U CN219915735U CN 219915735 U CN219915735 U CN 219915735U CN 202321229333 U CN202321229333 U CN 202321229333U CN 219915735 U CN219915735 U CN 219915735U
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- China
- Prior art keywords
- hardware
- probe
- probes
- charge
- voltage
- Prior art date
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- 238000007599 discharging Methods 0.000 title claims description 12
- 239000000523 sample Substances 0.000 claims abstract description 141
- 239000002184 metal Substances 0.000 claims description 9
- 229910052751 metal Inorganic materials 0.000 claims description 9
- 229910000570 Cupronickel Inorganic materials 0.000 claims description 5
- YOCUPQPZWBBYIX-UHFFFAOYSA-N copper nickel Chemical group [Ni].[Cu] YOCUPQPZWBBYIX-UHFFFAOYSA-N 0.000 claims description 5
- 230000000149 penetrating effect Effects 0.000 claims 1
- 238000012360 testing method Methods 0.000 abstract description 14
- 238000001514 detection method Methods 0.000 abstract description 9
- 238000000034 method Methods 0.000 description 9
- 230000009970 fire resistant effect Effects 0.000 description 5
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 3
- 229910052744 lithium Inorganic materials 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 239000003344 environmental pollutant Substances 0.000 description 2
- 230000007774 longterm Effects 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 238000007747 plating Methods 0.000 description 2
- 231100000719 pollutant Toxicity 0.000 description 2
- 238000005070 sampling Methods 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Classifications
-
- 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
Landscapes
- Measuring Leads Or Probes (AREA)
Abstract
The utility model discloses a charge and discharge device, which comprises: a plurality of hardware probes and a fireproof support. The hardware probes are sheet-shaped, wherein the hardware probes comprise current hardware probes and voltage hardware probes, the current hardware probes are used for being connected with current wires, the voltage hardware probes are used for being connected with voltage wires, and the current hardware probes and the voltage hardware probes are arranged at intervals along a first direction; the fireproof support is of a cavity structure, and the hardware probes penetrate through the fireproof support and are fixed along the second direction. By adopting the technology provided by the utility model, the problems of poor contact, unstable contact, short circuit and the like are effectively avoided, a test circuit is simplified, the detection efficiency of the battery is improved, and the failure rate is reduced.
Description
Technical Field
The utility model relates to the technical field of lithium battery charge and discharge test probes, in particular to a charge and discharge device.
Background
The probe is mainly applied to testing various electronic elements, and in the process of charging and discharging a lithium battery, the current and the voltage of the anode and the cathode of the battery need to be measured, and the testing process is to arrange the probe on an object to be tested and contact the electronic elements.
However, in the prior art, the shape of the probe is mostly a circular column-shaped needle body, for example, CN202351277U discloses a probe for testing lithium battery, which comprises a probe guide post, a probe, a limiting retainer ring and an elastic member, and by setting a plurality of current probes, the current is split, so that the over-current capability is improved. But is limited by the cylindrical structure of a single current probe, the contact area between the current probe and the battery tab is small, and the contact is unstable.
Disclosure of Invention
The utility model provides a charge and discharge device, which is used for solving the problems of small contact area and instability of a probe and a battery tab in the prior art.
In order to solve the technical problems, the technical scheme adopted by the utility model is to provide a charging and discharging device, which comprises: a plurality of hardware probes and a fireproof support.
The hardware probes are sheet-shaped, wherein the hardware probes comprise current hardware probes and voltage hardware probes, the current hardware probes are used for being connected with current wires, the voltage hardware probes are used for being connected with voltage wires, and the current hardware probes and the voltage hardware probes are arranged at intervals along a first direction; the fireproof support is of a cavity structure, and the hardware probes penetrate through the fireproof support and are fixed along the second direction.
The technical scheme provided by the utility model has the beneficial effects that:
by arranging a plurality of hardware probes, the current hardware probes and the voltage hardware probes are included. The current hardware probe and the voltage hardware probe are respectively contacted with a current wire and a voltage wire, so that current and voltage are detected together. The current hardware probes and the voltage hardware probes are all multiple, and the current hardware probes and the voltage hardware probes are connected in parallel, namely, any one of the current hardware probes and any one of the voltage hardware probes are matched to realize charge, discharge and sampling of the battery. Therefore, the problems of poor contact, unstable contact, short circuit and the like are effectively avoided, a test circuit is simplified, the detection efficiency of the battery is improved, and the failure rate is reduced.
In addition, the hardware probe is flaky, so that the contact area between the hardware probe and the battery tab is greatly increased, the contact resistance between the hardware probe and the battery tab is reduced, the charge and discharge efficiency of the battery is further improved, the detection precision is improved, and the rework rate is reduced. The fireproof support has insulativity and high temperature resistance, and effectively avoids safety accidents in the detection process.
In some embodiments, one end of the hardware probe along the second direction is a connection section, and the connection section is used for connecting with a current wire and/or a voltage wire; the other end of the hardware probe along the second direction is a hardware sheet, and the hardware sheet is used for being connected with the battery cell tab; the hardware sheet is located on the outer side of the cavity and is in a tooth-shaped structure.
By adopting the technical scheme, in the prior art, the contact end of the probe and the battery lug is generally a spherical contact end, but the contact area is larger, and the application range is narrower. The contact end of the hardware sheet and the battery is designed into a saw-tooth shape, so that dust and pollutants are not stained while the contact area is enhanced, and the contact point can be effectively applied to various types of contact points. The overcurrent capacity is proportional to the cross-sectional area, but the ratio is reduced along with the increase of the area, the width of the connecting section is lower than that of the hardware sheet, and the peak value of the overcurrent capacity is realized under the condition of less consumable materials.
In some embodiments, the connection segments are spaced apart along the first direction, wherein adjacent connection segments are positioned in opposite positions.
By adopting the technical scheme, the positions of the adjacent connecting sections are opposite, namely the contact section of the voltage hardware probe is located above along the third direction, and the contact end of the current hardware probe is located below along the third direction, so that the voltage line and the current line are mutually separated.
In some embodiments, the hardware probe is further provided with a notch extending along the second direction, the notch extending through the hardware probe along a thickness direction of the hardware probe.
By adopting the technical scheme, the hardware probe detection process is as follows: after one end (namely a hardware sheet) of the hardware probe contacts an object to be tested, the other end (namely a connecting section) of the hardware probe is used for conducting current and voltage signals to the testing machine through an outgoing line sleeved with the connecting section. The hardware probe is sheet-shaped, and the notch is arranged along the extending direction of the hardware probe, so that the resistance of the hardware probe can be effectively reduced, namely, the current loss is reduced, and the testing precision is improved.
In some embodiments, an elastic member is further disposed in the slot, and one end of the elastic member is connected to an inner wall of the slot, wherein the elastic member is located in the slot in a compressed state.
By adopting the technical scheme, the elastic piece is in a compressed state and is positioned in the notch, so that the elastic piece has an expansion force along the two ends of the extending direction of the notch. When the hardware probe is contacted with the battery, the hardware sheet has an abutting force on the contact object, so that the hardware sheet is contacted with the object to be detected more stably and tightly.
In some embodiments, a positioning pin is further arranged in the fireproof support, and penetrates through the notch along the second direction, wherein one end of the elastic piece is abutted to the positioning pin, and the other end of the elastic piece is connected with the inner wall of the notch.
By adopting the technical scheme, the notch that passes a plurality of hardware probes through the locating pin for hardware probes sets up along first direction interval, and wherein the locating pin can also fix a position hardware probes, is prescribing a limit to the degree of freedom of movement of hardware probes promptly, makes hardware probes set for distance and inactivity along first direction interval.
In some embodiments, the hardware probe is copper nickel plated.
By adopting the technical scheme, copper nickel plating can effectively avoid copper oxidation in the long-term use process, and the corrosion resistance and hardness of the hardware probe are improved.
In some embodiments, the fireproof support is provided with protrusions along two sides of the first direction, and the protrusions are provided with mounting holes, wherein the mounting holes are used for mounting the charging and discharging device.
By adopting the technical scheme, the protrusions and the mounting holes of the fireproof support can realize the integral installation of the charging and discharging device and the probe of the external testing machine, thereby effectively avoiding the connection of the connecting section and the outgoing line from falling off or damaging.
Drawings
For a clearer description of the technical solutions of the embodiments of the present utility model, the drawings that are needed in the description of the embodiments will be briefly introduced below, it will be obvious that the drawings in the following description are only some embodiments of the present utility model, and other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art, wherein:
fig. 1 is a schematic perspective view of an embodiment of a charging and discharging device according to the present utility model;
fig. 2 is a schematic diagram of a hardware probe according to an embodiment of the charge/discharge device provided by the present utility model;
fig. 3 is a schematic perspective view of a charge and discharge device according to an embodiment of the present utility model.
In the figure:
hardware probe-10; current hardware probe-11; voltage hardware probe-12; a connecting section-13; 14 parts of hardware sheets; notch-15; an elastic member-150;
fireproof support-20; a positioning pin-21; a protrusion-22; mounting holes-23.
Detailed Description
The technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are only some embodiments of the present utility model, but not all embodiments, and all other embodiments obtained by those skilled in the art without making any inventive effort based on the embodiments of the present utility model are within the scope of protection of the present utility model.
For convenience of the following description, before describing a specific structure of the charge and discharge device, the present utility model defines a first direction (X), a second direction (Y), and a third direction (Z) in conjunction with fig. 1. Wherein the first direction is the width direction, such as the X direction, of the charge-discharge device when the charge-discharge device is normally placed; the second direction is the width direction, such as the Y direction, of the charge-discharge device when the charge-discharge device is normally placed; the third direction is the height direction, for example, the Z direction, of the charge and discharge device when the charge and discharge device is normally placed.
In the present utility model, the first direction (X), the second direction (Y) and the third direction (Z) are perpendicular to each other. It is understood that the perpendicularity of the present utility model is not absolute, and that approximate perpendicularity due to machining errors and assembly errors (e.g., an angle of 89.9 ° between two structural features) is also within the scope of the perpendicularity of the present utility model.
Referring to fig. 1, fig. 1 shows a schematic perspective view of a charge and discharge device according to the present utility model.
In some embodiments, a charge-discharge device, the charge-discharge device comprises: a plurality of hardware probes 10 and a fire-resistant mount 20.
The hardware probe 10 is in a sheet shape, wherein the hardware probe 10 comprises a current hardware probe 11 and a voltage hardware probe 12, the current hardware probe 11 is used for being connected with a current wire, the voltage hardware probe 12 is used for being connected with a voltage wire, and the current hardware probe 11 and the voltage hardware probe 12 are arranged at intervals along a first direction; fire-resistant holder 20 is a cavity structure and a plurality of hardware probes 10 are secured through fire-resistant holder 20 in a second direction.
In the embodiment of the present utility model, the plurality of hardware probes 10 includes a plurality of current hardware probes 11 and voltage hardware probes 12. The charge-discharge device includes three current hardware probes 11 and two voltage hardware probes 12, wherein the current hardware probes 11 are connected in parallel before, the voltage hardware probes 12 are connected in parallel, and the current hardware probes 11 and the voltage hardware probes 12 are respectively contacted with a current wire and a voltage wire, so that current and voltage are detected together. That is, any current hardware probe 11 and any voltage hardware probe 12 can be matched to realize the charge, discharge and sampling of the battery. Therefore, the problems of poor contact, unstable contact, short circuit and the like are effectively avoided, a test circuit is simplified, the detection efficiency of the battery is improved, and the failure rate is reduced. However, the number of the current hardware probes 11 or the voltage hardware probes 12 is not limited, for example, three voltage hardware probes 12 and four current hardware probes 11 can be adopted to realize simultaneous test of current and voltage and parallel connection.
In addition, the hardware probe 10 is in a sheet shape, so that the contact area between the hardware probe 10 and the battery tab is greatly increased, the contact resistance between the hardware probe 10 and the battery tab is reduced, the charge and discharge efficiency of the battery is further improved, the detection precision is improved, and the rework rate is reduced.
Fire-resistant plastic can be used for fire-resistant bracket 20 so that it will not deform during use due to heating when hardware probe 10 is overcurrents. The insulation and high temperature resistance are achieved, and safety accidents in the detection process can be effectively avoided.
Referring to fig. 2 to 3, fig. 2 is a schematic structural diagram illustrating an embodiment of a hardware probe 10 of a charging and discharging device according to the present utility model; fig. 3 shows a second perspective view of an embodiment of a charging and discharging device according to the present utility model.
In some embodiments, one end of the hardware probe 10 along the second direction is a connection section 13, and the connection section 13 is used for connecting with a current line and/or a voltage line; the other end of the hardware probe 10 along the second direction is a hardware sheet 14, and the hardware sheet 14 is used for being connected with the battery cell tab; the hardware piece 14 is located on the outer side of the cavity and has a tooth-shaped structure.
In the embodiment of the utility model, one end of the connecting section 13 of the hardware probe 10 is connected with an outgoing line (such as a current line or a voltage line), and the other end is contacted with the electrode lug of the electric core. The contact end of the metal sheet 14 and the object to be tested is in a tooth-shaped structure, so that the contact area is enhanced, dust and pollutants are not adhered to the contact end, and various contact points (such as contact points of long pins, terminals, winding posts, welding points, welding pads and the like) can be effectively applied. The width of the connecting section 13 is lower than that of the hardware piece 14, but the width of the connecting section 13 and the hardware piece 14 are not limited in the utility model, for example, when the width of the hardware piece 14 is 6mm, the width of the connecting section 13 is 2.5mm.
In the prior art, the contact end of the probe and the battery tab is generally a spherical contact end (namely, the probe is a cylinder, and the contact end is a sphere), but the contact area is larger, and the application range is narrower. The contact end of the hardware piece 14 and the battery is designed to be saw-tooth, wherein, the overcurrent capacity is in direct proportion to the cross section area, but the proportion is reduced along with the increase of the area, the width of the connecting section 13 is lower than that of the hardware piece 14, and the peak value of the overcurrent capacity is realized under the condition of less consumable materials.
In some embodiments, as shown in connection with fig. 1, the connection segments 13 are spaced apart along a first direction, wherein adjacent connection segments 13 are positioned in opposite positions.
In the embodiment of the present utility model, the voltage line and the current line are respectively connected to the connection section 13, and illustratively, the contact section of the voltage hardware probe 12 is located above along the third direction and connected to the voltage line; the contact end of the current hardware probe 11 is located downward along the third direction and is connected to a current line.
In some embodiments, the hardware probe 10 is further provided with a notch 15, the notch 15 extending in the second direction, the notch 15 extending through the hardware probe 10 in the thickness direction (i.e., in the first direction) of the hardware probe 10.
In the embodiment of the present utility model, the notch 15 of the hardware probe 10 is disposed along the extending direction of the hardware probe 10 and is located in the middle of the hardware probe 10. The hardware probe 10 is sheet-shaped, and the notch 15 penetrates through the thickness direction of the hardware probe 10. Illustratively, the hardware probe 10 detection process is: after one end (i.e. the hardware piece 14) of the hardware probe 10 contacts with an object to be tested, the other end (i.e. the connecting section 13) of the hardware probe 10 conducts current and voltage signals to the testing machine through an outgoing line sleeved with the connecting section 13. The notch 15 can effectively reduce the resistance of the hardware probe 10, namely reduce current loss and improve the test precision.
In some embodiments, the slot 15 is further provided with an elastic member 150, wherein one end of the elastic member 150 is connected with the inner wall of the slot 15, and the elastic member 150 is located in the slot 15 in a compressed state.
In the embodiment of the present utility model, the elastic member 150 is located in the notch 15 in a compressed state, so that there is an expansion force at two ends of the elastic member 150 along the extending direction of the notch 15. Illustratively, the resilient member 150 can be a spring, a leaf spring, or the like. When the hardware probe 10 contacts with the battery, the elastic member 150 has an expansion force along two sides of the notch 15, so that the hardware piece 14 has an abutting force on the contact object, and the hardware piece 14 is in more stable and tight contact with the object to be measured.
In some embodiments, referring to fig. 2 to 3, a positioning pin 21 is further disposed in the fireproof support 20, and the positioning pin 21 penetrates the notch 15 along the second direction, wherein one end of the elastic member 150 abuts against the positioning pin 21, and the other end is connected to the inner wall of the notch 15.
In the embodiment of the present utility model, the positioning pin 21 passes through the notches 15 of the plurality of hardware probes 10 along the first direction, and fixes and positions the plurality of hardware probes 10, i.e., limits the degree of freedom of movement of the hardware probes 10 along the first direction. Illustratively, hardware probes 10 are spaced apart in a first direction and are spaced apart a set distance and are not movable within a cavity within fire-protecting rack 20. Elastic member 150
In some embodiments, the material of the hardware probe 10 is copper nickel plated.
In the embodiment of the utility model, copper nickel plating can effectively avoid copper oxidation in the long-term use process, and the corrosion resistance and hardness of the hardware probe 10 are improved.
In some embodiments, fire-protecting bracket 20 is provided with protrusions 22 on both sides in the first direction, respectively, and protrusions 22 are provided with mounting holes 23, wherein mounting holes 23 are used for mounting the charging and discharging device.
In the embodiment of the utility model, the protrusions 22 and the mounting holes 23 of the fireproof support 20 are symmetrically arranged along the first direction, wherein the protrusions 22 and the mounting holes 23 can effectively mount the whole charge and discharge device with the probe of an external testing machine, so that the connection of the connection section 13 and the outgoing line is prevented from falling off or being damaged. And the charging and discharging device is convenient for the staff to operate.
The foregoing description is only of embodiments of the present utility model, and is not intended to limit the scope of the utility model, and all equivalent structures or equivalent processes or direct or indirect application in other related technical fields using the descriptions and drawings of the present utility model should be carried within the scope of the present utility model.
Claims (8)
1. A charge-discharge apparatus, comprising:
the metal probes are sheet-shaped, wherein the metal probes comprise current metal probes and voltage metal probes, the current metal probes are used for being connected with current wires, the voltage metal probes are used for being connected with voltage wires, and the current metal probes and the voltage metal probes are arranged at intervals along a first direction.
The fireproof support is of a cavity structure, and a plurality of hardware probes penetrate through the fireproof support and are fixed along the second direction.
2. The charging and discharging device according to claim 1, wherein one end of the hardware probe in the second direction is a connection section, and the connection section is used for connecting with a current line and/or a voltage line; the other end of the hardware probe along the second direction is a hardware sheet, and the hardware sheet is used for being connected with the battery cell tab; the hardware sheet is located on the outer side of the cavity and is in a tooth-shaped structure.
3. The charge and discharge device according to claim 2, wherein the connection sections are arranged at intervals along the first direction, wherein adjacent connection sections are arranged at opposite positions.
4. The charge and discharge device according to claim 1, wherein the hardware probe is further provided with a notch extending in the second direction, the notch penetrating through the hardware probe in a thickness direction of the hardware probe.
5. The charge and discharge device of claim 4, wherein an elastic member is further disposed in the slot, one end of the elastic member is connected to an inner wall of the slot, and the elastic member is disposed in the slot in a compressed state.
6. The charge and discharge device according to claim 4, wherein a positioning pin is further provided in the fireproof support, the positioning pin penetrates through the notch along the second direction, one end of the elastic member abuts against the positioning pin, and the other end of the elastic member is connected with the inner wall of the notch.
7. The charge and discharge device of claim 1, wherein the hardware probe is copper nickel plated.
8. The charge and discharge device according to claim 1, wherein the fireproof support is provided with protrusions along both sides of the first direction, and mounting holes are formed in the protrusions, wherein the mounting holes are used for mounting the charge and discharge device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321229333.2U CN219915735U (en) | 2023-05-17 | 2023-05-17 | Charging and discharging device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321229333.2U CN219915735U (en) | 2023-05-17 | 2023-05-17 | Charging and discharging device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219915735U true CN219915735U (en) | 2023-10-27 |
Family
ID=88439034
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321229333.2U Active CN219915735U (en) | 2023-05-17 | 2023-05-17 | Charging and discharging device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219915735U (en) |
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2023
- 2023-05-17 CN CN202321229333.2U patent/CN219915735U/en active Active
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