CN210572646U - Battery charge-discharge testing device - Google Patents
Battery charge-discharge testing device Download PDFInfo
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- CN210572646U CN210572646U CN201920801085.1U CN201920801085U CN210572646U CN 210572646 U CN210572646 U CN 210572646U CN 201920801085 U CN201920801085 U CN 201920801085U CN 210572646 U CN210572646 U CN 210572646U
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- probe
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- battery charge
- elastic element
- discharge
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Abstract
The utility model discloses a battery charge-discharge testing arrangement. The device includes: insulating cover, probe, elastic element and spacer pin. The insulating sleeve is provided with a cavity, the probe penetrates through the cavity, a hole is formed in the probe, the elastic element is embedded in the hole, and the limiting pin penetrates through the insulating sleeve and the hole; during testing, one end of the elastic element is propped against the inner wall of the hole, and the other end of the elastic element is propped against the limit pin. The utility model provides a battery charge and discharge testing arrangement has the characteristics that measuring accuracy is high and stability is strong.
Description
Technical Field
The utility model relates to a battery measurement test technical field especially relates to a battery measurement testing arrangement.
Background
In the process of detecting the charge and discharge of the lithium battery, the current and the voltage of the anode and the cathode of the battery need to be measured, and the traditional manual operation method is that bolts or alligator clips are used for connection, but the measurement precision is poor, the resistance value is unstable, and the production efficiency is low.
Another measurement method is to use a probe to perform measurement, as shown in fig. 1, the measurement device includes 4 copper column probes (two small voltage pins 1 and two large current pins 2), a spring, and a probe installation plastic insulation module, the spring is sleeved under the detection end of the probe (the detection end of the probe has a step to limit the spring), the probe passes through the installation module, the other end is provided with a limit snap ring, and the limit snap ring is sleeved on the copper column of the probe. When the probe is used, the probe body is pressed downwards, the current and voltage needle is simultaneously contacted with a battery pole, and the current and voltage sampling lead is led out from a welding wire at the tail end of the probe. However, in the existing probe structure, the voltage needle 1 is located at the center, the diameter is too small, the contact is unreliable, the voltage sampling is sometimes unstable in the actual test process, and the voltage needle 1 is easily damaged after being collided; meanwhile, the positions of the probe copper columns are uneven, so that the probe copper columns can only meet the requirement of a battery with a large tab contact surface and cannot meet the requirement of lithium battery detection work.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a battery charge-discharge testing arrangement has the characteristics that measuring accuracy is high and stability is strong.
In order to achieve the above object, the utility model provides a following scheme:
a battery charge and discharge test apparatus comprising:
the insulating sleeve is provided with a cavity;
the probe penetrates through the cavity and is provided with a hole;
a resilient element embedded in the aperture; and
the limiting pin penetrates through the insulating sleeve and the hole;
during testing, one end of the elastic element is abutted against the inner wall of the hole, and the other end of the elastic element is abutted against the limit pin.
Optionally, the hole is a rectangular hole, and the length of the rectangular hole is greater than the length of the elastic element.
Optionally, the elastic element is a spring.
Optionally, the number of the probes is multiple, the number of the cavities is multiple, and the probes correspond to the cavities one to one.
Optionally, the probe is a copper sheet.
Optionally, one end of the probe for testing is provided with a sawtooth or a sharp tooth.
Optionally, a pin is arranged at one end of the probe for outputting a signal.
Optionally, a threaded hole is formed in the insulating sleeve, a thread matched with the threaded hole is arranged on the limit pin, and the limit pin penetrates through the threaded hole and the hole in the probe.
Optionally, two ends of the limit pin are flush with the outer surface of the insulating sleeve.
Optionally, an inner counterbore surface is arranged on the inner wall of the hole on the probe, and one end of the elastic element abuts against the inner counterbore surface.
According to the utility model provides a utility model content, the utility model discloses a following technological effect: the utility model provides a battery charge and discharge testing arrangement includes insulating cover, probe, elastic element and spacer pin, has seted up the cavity on the insulating cover, and the probe runs through this cavity, and sets up porosely on the probe, and elastic element inlays in the hole, and the spacer pin runs through insulating cover and hole, and when the test, elastic element one end top is on the inner wall in hole, and the other end top is on the spacer pin. The limiting pin plays a limiting role in the elastic element, so that the elastic element has stability relative to the insulating sleeve, the contact stability and reliability of the probe and the battery tab are guaranteed, the stability and reliability are guaranteed, errors caused by poor stability and poor reliability are avoided, and the measurement accuracy is improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic structural view of a battery charge and discharge measurement device in the prior art of the present invention;
fig. 2 is a schematic structural view of an insulating sleeve in an embodiment of the present invention;
fig. 3 is a schematic structural diagram of a probe according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of a battery charging and discharging testing device in an embodiment of the present invention;
fig. 5 is a half sectional view of the battery charge/discharge test apparatus shown in fig. 4 according to the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
The utility model aims at providing a battery charge-discharge testing arrangement has the characteristics that measuring accuracy is high and stability is strong.
In order to make the above objects, features and advantages of the present invention more comprehensible, the present invention is described in detail with reference to the accompanying drawings and the detailed description.
The utility model provides a battery charge and discharge testing arrangement includes: insulating cover, probe, elastic component 5 and spacer pin 8. As shown in fig. 2, a cavity 3 is formed in the insulating sleeve, the probe penetrates through the cavity 3, as shown in fig. 3, a hole 4 is formed in the probe, and an elastic element 5 is embedded in the hole 4; as shown in fig. 4 and 5, the spacing pin 8 penetrates through the insulating sleeve and the hole 4; during testing, under the contact pressure of the probe and the battery tab, one end of the elastic element 5 is pressed against the inner wall of the hole 4, and the other end of the elastic element is pressed against the limiting pin 8.
On the basis of the above embodiment, as the utility model discloses an embodiment, hole 4 is the rectangular hole, and the size of rectangular hole is according to elastic element 5 external diameter and probe compression stroke design, and the width of rectangular hole slightly is greater than elastic element 5's external diameter, and the length of rectangular hole is greater than elastic element 5's length.
The elastic element 5 may be a spring, or other elastic components, and the size and force compression stroke of the spring are determined by the magnitude of the test current.
The number of the probes is multiple, the number of the cavities 3 is multiple, and the probes correspond to the cavities 3 one to one. The number of the probes can be four, the four probes are identical in shape and structure and are respectively used for measuring the voltage and the current of the positive electrode and the negative electrode of the battery. The probe is installed in insulating cover central point and puts, and four probes parallel mount side by side, and insulating cover adopts fire-retardant, corrosion-resistant, high strength plastics to mould plastics integrated into one piece.
On the basis of the above embodiment, as an embodiment of the present invention, the probe is a copper sheet. The copper sheet can save materials and reduce the process cost.
On the basis of above-mentioned embodiment, as the utility model discloses an embodiment, the one end that the probe is used for the test is provided with sawtooth or sharp tooth, and the quantity of tooth is relevant with the contact point size of the product contact that awaits measuring, and the setting of tooth can improve contact stability, reduces contact resistance, and the copper sheet surface can adopt processes such as nickel plating, gilding to handle, makes its contact more reliable. One end of the probe for outputting signals is provided with a pin 6. The probe voltage current line is led out through the tail pin 6, and the current voltage line can be connected by adopting various welding crimping modes such as tin welding, ultrasonic welding and the like.
On the basis of above-mentioned embodiment, as the utility model discloses an embodiment, both ends set up threaded hole 9 about the insulating cover, be provided with on the spacer pin 8 with 9 assorted screws of screw hole, the spacer pin 8 passes hole 4 on screw hole 9 and the probe, spacer pin 8 through threaded mode and insulating cover fixed connection. The two ends of the limiting pin 8 are flush with the outer surface of the insulating sleeve. The limiting pin 8 is positioned at the upper position of the middle part of the probe.
On the basis of the above embodiment, as an embodiment of the present invention, the inner wall of the hole 4 on the probe is provided with an inner counterbore surface 7, and one end of the elastic element 5 is pressed against the inner counterbore surface 7.
During the use, current probe and voltage probe respectively in the lump with survey battery electrode contact, the probe relies on its central point to put the spring, guarantees the contact position and the contact pressure of four probe measuring ends and electrode, reduces contact resistance, because the big or small pressure of four probes is all unanimous, has also guaranteed voltage sampling measurement resistance's stability simultaneously, improves the accuracy of measured value.
The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.
The principle and the implementation of the present invention are explained herein by using specific examples, and the above description of the embodiments is only used to help understand the method and the core idea of the present invention; meanwhile, for the general technical personnel in the field, according to the idea of the present invention, there are changes in the concrete implementation and the application scope. In summary, the content of the present specification should not be construed as a limitation of the present invention.
Claims (10)
1. A battery charge and discharge testing device is characterized by comprising:
the insulating sleeve is provided with a cavity;
the probe penetrates through the cavity and is provided with a hole;
a resilient element embedded in the aperture; and
the limiting pin penetrates through the insulating sleeve and the hole;
during testing, one end of the elastic element is abutted against the inner wall of the hole, and the other end of the elastic element is abutted against the limit pin.
2. The battery charge and discharge test apparatus according to claim 1, wherein the hole is a rectangular hole having a length greater than a length of the elastic member.
3. The battery charge and discharge test apparatus according to claim 1, wherein the elastic member is a spring.
4. The battery charge and discharge testing device of claim 1, wherein the number of probes is multiple, the number of cavities is multiple, and the probes correspond to the cavities one-to-one.
5. The battery charge and discharge test apparatus according to any one of claims 1 to 4, wherein the probe is a copper sheet.
6. The battery charge and discharge testing device according to claim 1, wherein one end of the probe for testing is provided with a serration or a sharp tooth.
7. The battery charge and discharge test apparatus according to claim 1, wherein a pin is provided at one end of the probe for outputting a signal.
8. The battery charge and discharge testing device according to claim 1, wherein a threaded hole is formed in the insulating sleeve, a thread matched with the threaded hole is formed in the limit pin, and the limit pin penetrates through the threaded hole and the hole in the probe.
9. The battery charge and discharge test apparatus according to claim 1, wherein both ends of the stopper pin are flush with an outer surface of the insulating sleeve.
10. The battery charge and discharge testing device according to claim 1, wherein an inner counterbore surface is provided on an inner wall of the hole in the probe, and one end of the elastic member abuts against the inner counterbore surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920801085.1U CN210572646U (en) | 2019-05-30 | 2019-05-30 | Battery charge-discharge testing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920801085.1U CN210572646U (en) | 2019-05-30 | 2019-05-30 | Battery charge-discharge testing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210572646U true CN210572646U (en) | 2020-05-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920801085.1U Active CN210572646U (en) | 2019-05-30 | 2019-05-30 | Battery charge-discharge testing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210572646U (en) |
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2019
- 2019-05-30 CN CN201920801085.1U patent/CN210572646U/en active Active
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