TWI688782B - Clipped testing device - Google Patents

Abstract

The invention discloses a clipped testing device. The clipped testing device has a first holding member and a second holding member. The first holding member has a plurality of conducting members. A first surface, a first end, and a second end are defined at the first holding member. A third end and a fourth end are defined at the second holding member. A first distance is between the first end and the third end, and the second end and the fourth end are connected. The first surface faces the second holding member. Wherein each of the conducting members has a first arm and a first bended portion. The first bended portion is connected to the first arm. The first arm is extended from the first surface, and the first bended portion, having a first angle, is bended toward the first surface.

Description

Clip-on test device

The invention relates to a clip-type testing device, in particular to a clip-type testing device which can reduce scratches.

With the development of electric vehicles, people have the option of using pure electric energy to move long distances without using petrochemical fuel. In order to increase the driving distance of electric vehicles, it is often necessary to configure more and higher-capacity batteries. However, how to ensure that these batteries are stable, safe and reliable has become an important issue, and it also highlights the importance of detecting battery quality.

At present, when testing the quality of a battery, charging and discharging tests may be performed for the battery, so that the voltage and current characteristics of the battery can be accurately measured, which is an important key for evaluating the quality of the battery. However, when the battery is manufactured, in order to avoid oxidation or damage of the electrode, a protective film is covered on the surface of the electrode. If the protective film cannot be effectively scraped off, the test connector will not be able to directly contact the electrode of the battery, resulting in the inability to accurately measure the battery Voltage and current characteristics. In practice, removing the protective film is not easy, and may damage the electrode. For example, there may be excessive scratches on the electrode due to excessive force or deviation of the force angle, thereby making the electrode a defective product. Therefore, there is a need in the industry for a test device that can scrape off the protective film and protect the electrode when detecting the battery, so as to more quickly and accurately measure the voltage and current characteristics of the battery.

The invention provides a clip-on test device. When clamping the battery electrode, in addition to scraping the protective film of the electrode from the conductive member and directly detecting the voltage and current characteristics of the battery, the structure of the conductive member is modified to reduce the electrode Scratches.

The invention provides a clip-type testing device, which includes a first clamping piece and a second clamping piece. The first clamping member defines a first surface, a first end and a second end, and the first clamping member is provided with a plurality of conductive members. The second clamping piece defines a third end and a fourth end, the fourth end is connected to the second end, the third end is spaced apart from the first end by a first distance, and the first surface of the first clamping piece faces the second clamping Pieces. Each conductive member has a first cantilever and a first bent portion, the first bent portion is connected to the first cantilever, the first cantilever extends from the first surface, and the first bent portion is oriented at a first angle The first surface is curved.

In some embodiments, each conductive member may further have a second cantilever and a second bent portion, the second bent portion is connected to the second cantilever, the second cantilever extends from the first surface, and the second bent portion It is curved towards the first surface at a first angle. Here, each conductive member may further have a connecting portion, the connecting portion contacts the first clamping member, one end of the connecting portion is connected to the first cantilever, and the other end of the connecting portion is connected to the second cantilever. In addition, the first clamping member may be defined with a second surface relative to the first surface, and the first clamping member may be provided with a first fixing portion, and the first fixing portion is used to catch at least part of the conductive member. In addition, the first fixing portion may have a first opening and a second opening. In the clipped conductive member, the connecting portion of each conductive member contacts the second surface, and the first cantilever extends from the first surface at the first opening The second cantilever extends from the first surface at the second opening.

In some embodiments, the first clamping member may be provided with a second fixing portion. The second fixing portion is used to catch at least part of the conductive member. The second fixing portion is parallel to the first fixing portion. Here, the second fixing portion may have a third opening and a fourth opening. In the clipped conductive member, the connection portion of each conductive member contacts the second surface, and the first cantilever extends from the first surface at the third opening The second cantilever extends from the first surface at the fourth opening.

In summary, when the clip-type testing device provided by the present invention clamps the battery electrode to be tested, the conductive member can contact the battery electrode to be tested and scrape off the protective film layer, thereby eliminating the additional step of tearing off the protective film layer , Direct detection of battery voltage and current characteristics. In addition, since the clip-type testing device of the present invention uses the bent portion on the conductive member to contact the battery electrode to be tested, the scratches left by the conductive member on the electrode can be reduced, thereby avoiding damage to the battery to be tested.

The features, purposes, and functions of the present invention will be further disclosed below. However, the following are only examples of the present invention, which should not be used to limit the scope of the present invention, that is, any changes and modifications made in accordance with the scope of the patent application of the present invention will still be the gist of the present invention, Without departing from the spirit and scope of the present invention, it should be regarded as a further embodiment of the present invention.

Please refer to FIGS. 1 and 2 together. FIG. 1 is a perspective schematic view of a clip-on test device according to an embodiment of the present invention, and FIG. 2 is a perspective view of a part of the clip-on test device according to an embodiment of the present invention. Schematic. As shown in the figure, the clamp-type testing device 1 has a first clamping member 10 and a second clamping member 12, an end 10a (first end) of the first clamping member 10 and an end 12a ( The third end) is separated, and the other end 10b (second end) of the first clamping member 10 and the other end 12b (fourth end) of the second clamping member 12 are joined together to form a clip-shaped structure. In practice, the first clamping member 10 and the second clamping member 12 may be provided with stoppers outside, and the stopper may abut the first clamping member 10 and the second clamping member 12 from the outside. For example, the stopper can move back and forth in one direction. Since the tilting direction of the first clamping member 10 is different from the moving direction of the stopper, when the stopper receives external force from the other end 10b When the one end 10a moves, the first clamping member 10 can be driven to squeeze toward the second clamping member 12.

Similarly, the tilt direction of the second clamping member 12 is also different from the moving direction of the stopper, so when the stopper moves from the other end 12b to the one end 12a under external force, the second clamping member 12 can be driven 12 Press toward the first clamping member 10. Thus, the first clamping member 10 and the second clamping member 12 can be brought closer to each other to grasp the object. This embodiment does not limit what kind of objects the clip-on test device 1 is used to hold. As long as the objects need to be electrically tested, the objects belong to the category of the clip-on test device 1 suitable for holding.

In one example, the first clamping member 10 and the second clamping member 12 can clamp an electrode in the shape of a sheet, plate, cylinder, or other shapes. In appearance, an end 10a of the first clamping member 10 and an end 12a of the second clamping member 12 may be separated by a predetermined distance (first distance) before being clamped. When the stopper moves from the outside to the clamped position, the end 10a of the first clamping member 10 and the end 12a of the second clamping member 12 may be designed to be as close as possible or slightly smaller than the thickness of the electrode, that is It has the effect of holding the electrode stably. This embodiment also does not limit the appearance shape of the first clamping member 10 and the second clamping member 12, for example, the first clamping member 10 and the second clamping member 12 shown in FIG. 1 can be used to clamp the object to be measured For the sheet-shaped or plate-shaped portion, the appearance structure of the first clamping member 10 and the second clamping member 12 can also be adjusted, so that it is more suitable for clamping objects of other shapes. In the following, for convenience of description, it is exemplified that the object to be measured is a battery, and the first clamping member 10 and the second clamping member 12 sandwich the sheet electrode of the battery, but this embodiment is not limited.

In addition, the clip-type testing device 1 has a plurality of conductive members 14 disposed on the first clamping member 10 and protruding from the first surface 10 c of the first clamping member 10. Here, the first surface 10c of the first clamping member 10 is defined as the surface facing the second clamping member 12, and the second surface 10d of the first clamping member 10 is defined as the surface opposite to the first surface 10c . In one example, the plurality of conductive members 14 are disposed near one end 10a of the first clamping member 10, and the plurality of conductive members 14 may be arranged side by side. When the electrode of the battery to be tested is firmly clamped by the clip-on test device 1, a plurality of conductive members 14 can simultaneously contact the electrode of the battery to be tested, distributing the stress when contacting the electrode, and avoiding excessive force when scraping the protective film layer. In addition, the conductive member 14 may have elasticity. When the clip-type testing device 1 clamps the electrode of the battery to be tested, the conductive member 14 may be slightly deformed, and the stress when contacting the electrode may also be dispersed. Here, the deformation should not damage the structure of the conductive member 14 so that the conductive member 14 can be used repeatedly.

In a practical example, the clip-on test device 1 can be connected to a power supply, and the battery to be tested can be charged by the power supply. In practice, the power supply can feed current from the other end 10b of the first clamping member 10, and the fed current can reach the electrode of the battery to be tested through the first clamping member 10 and the conductive member 14, so that the battery to be tested Charge. In addition, the clip-on test device 1 may further have a voltage detection element 16, and the voltage detection element 16 may also be provided with a conductive element 14 to detect the voltage change in the battery to be tested to prevent the battery from being overcharged or other causes The resulting voltage is abnormal. In one example, the first clamping member 10 and the voltage detection member 16 are not electrically connected together, which can avoid that when the power supply feeds current from the first clamping member 10, the current fed in interferes with the voltage detection The test piece 16 detects the voltage change in the battery to be tested. In addition, the voltage detection element 16 is only used for voltage measurement in the battery to be tested. The number of the conductive elements 14 provided on the voltage detection element 16 may be less than the number of the conductive elements 14 provided on the first clamping element 10. Unlike the first clamping member 10 which may need to carry a larger current, the area of the first clamping member 10 may be larger than the voltage detection member 16 to reduce the resistance in the first clamping member 10 and be more conducive to heat dissipation.

Since the drawings shown in FIGS. 1 and 2, the conductive member 14 is already provided on the first clamping member 10, it is not easy to clearly see the structures of the first clamping member 10 and the conductive member 14. In order to explain the structure and function of the conductive member 14 in detail, and to explain how the conductive member 14 is disposed on the first clamping member 10, please refer to FIGS. 3 and 4 together. FIG. 3 illustrates a part according to an embodiment of the present invention. 4 is a schematic perspective view of a part of the conductive member according to an embodiment of the invention. As shown in FIG. 3, the first clamping member 10 has a fixing portion 100 (first fixing portion), the fixing portion 100 is used to catch the conductive member 14, and the fixing portion 100 has an opening 1000 (first opening) and an opening 1002 (Second opening). In one example, the shape of the first clamping member 10 viewed from the first surface 10c or the second surface 10d may be the same, and the shapes of the openings 1000 and 1002 at the first surface 10c and the second surface 10d may also be Are the same. Here, in this embodiment, the first surface 10c shown in FIG. 3 is used as an example for description.

In addition, this embodiment does not limit the shapes of the opening 1000 and the opening 1002, as long as the opening 1000 and the opening 1002 can be used to pass through the conductive member 14, and the opening 1000 and the opening 1002 are exposed on the first surface 10c and the second surface 10d, respectively, that is It conforms to the definition of the opening in this embodiment. In one example, the opening 1000 and the opening 1002 may be holes through the first clamping member 10. However, in the fixing portion 100 shown in FIG. 3, since the opening 1000 is at the edge of the one end 10a of the first clamping member 10, it may not appear to be a complete hole. Here, the first clamping member 10 may be provided with a plurality of fixing portions, for example, may include a fixing portion 102 aligned with the fixing portion 100 in the longitudinal direction, and a fixing portion 104 aligned with the fixing portion 100 in the lateral direction. The fixing portion 102 has an opening 1020 and an opening 1022, and the fixing portion 104 has an opening 1040 and an opening 1042. In one example, the fixing portion 102 is farther from the end 10a of the first clamping member 10 than the fixing portion 100, and the distance between the fixing portion 100 and the end 10a of the first clamping member 10 may be substantially equal to the fixing portion 104 and the first The distance of one end 10a of the clamping member 10.

The present embodiment does not limit the separation distance between the fixed part 100 and the fixed part 102 here. In the example of FIG. 3, the distance between two fixed portions (fixed portions 100 and 102) arranged in the longitudinal direction is small, so that the opening 1020 and the opening 1002 can form the same hole together. In one example, if the separation distance between the two fixed portions (fixed portions 100, 102) arranged in the longitudinal direction is large, the opening 1020 and the opening 1002 may also be two different holes, which will not be used in this embodiment limit. Furthermore, this embodiment also does not limit the separation distance between two fixed portions arranged in the lateral direction, for example, the fixed portion 100 and the fixed portion 104 may be separated from each other by a predetermined distance. In one example, the separation distance between the fixing portion 100 and the fixing portion 104 may be approximately the width of the opening. Of course, the distance between the fixing portion 100 and the fixing portion 104 may be slightly larger or slightly smaller than the width of the opening. In practice, when deciding the distance between two fixed portions arranged longitudinally, attention should be paid to the structural strength of the first clamping member 10 to avoid excessive softening of the first clamping member 10 or inability to hold objects firmly.

It is worth mentioning that the first clamping member 10 of this embodiment does not necessarily have a longitudinally arranged fixing portion. In other words, even if the first clamping member 10 has only a plurality of fixing portions in one course, such as the fixing portion 100 and the fixing portion 104, a complete function can be achieved. In practice, when determining the distance between two fixed portions arranged laterally, in addition to the structural strength of the first clamping member 10, the internal resistance of the first clamping member 10 should also be noted. For example, if the distance between the two fixed portions arranged horizontally is close to zero, it may cause the problem of excessive internal resistance, inability to dissipate heat, or excessive concentration of heat, which is detrimental to the efficiency of charging. In some examples, providing an additional current path for the first clamping member 10, such as providing additional conductive posts and conductive plates, allows the charging current to bypass the excessively tight fixing portion, which may solve the above problem.

In addition, it can be seen from FIG. 3 that the edge of the opening is zigzag-shaped to more firmly engage the conductive member 14 and allow the conductive member 14 to be properly spaced. In one example, the conductive members 14 may not be in contact with each other, so as to prevent the charging current from concentrating on a few conductive members 14, which may cause overheating or damage. However, those of ordinary skill in the art should understand that even if the conductive members 14 are in contact with each other, the effect of scraping the protective film layer of the object to be measured (such as the battery electrode) is not affected. In addition, if the charging current is still less than the current limit that the conductive member 14 can carry, it will not cause the problem of overheating or damage. In other words, this embodiment does not limit the shape of the opening, and the opening may have any shape. For example, the edge of the opening is not zigzag but smooth, and should also belong to the category of the opening described in this embodiment.

As can be seen from FIG. 4, the conductive member 14 may include a cantilever 140 (first cantilever), a bent portion 142 (first bent portion), a cantilever 144 (second cantilever), and a bent portion 146 (second bent portion)与连接部148。 And the connection portion 148. The cantilever 140 is located between the bent portion 142 and the connecting portion 148, the cantilever 144 is located between the bent portion 146 and the connecting portion 148, and the cantilever 140 and the cantilever 144 can be connected via the connecting portion 148. In one example, the conductive member 14 may be integrally formed, and a material with high conductive efficiency, such as a copper material, may be used. In an actual operation example, the connecting portion 148 shown in FIG. 4 may contact the second surface 10d of the first clamping member 10, and the cantilever 140 and the cantilever 144 may extend from the opening 1000 and the opening 1002 on the first surface 10c, respectively Then, the bent portion 142 and the bent portion 146 are bent into the first surface 10c. In practice, the cantilever 140 is not perpendicular to the first surface 10c, but is at an angle with the first surface 10c, and the included angle may be an acute angle (between 0 degrees and 90 degrees), such as 15 degrees, 30 degrees, 45 Degrees, 60 degrees or 75 degrees. In contrast, the cantilever 144 may also be at the same angle as the first surface 10c, so that the cantilever 140 and the cantilever 144 may be symmetrical in appearance.

In other words, by the connecting portion 148 abutting the second surface 10d and the cantilever 140 and the cantilever 144 abutting the first surface 10c, the conductive member 14 can be firmly connected to the first clamping member 10. In addition, the bent portion 142 and the bent portion 146 are bent toward the first surface 10c at a fixed angle θ (first angle). In this embodiment, the angle and length of the bent portion 142 and the bent portion 146 are not limited herein. In one example, the bending portion 142 and the bending portion 146 are symmetrical, and the angle θ may be an obtuse angle (between 90 degrees and 180 degrees), such as 105 degrees, 120 degrees, 135 degrees, 150 degrees, or 165 degrees. The embodiments are not limited here. Preferably, the bent portion 142 and the bent portion 146 can be bent toward the first surface 10c, but do not abut on the first surface 10c, thereby the conductive member 14 can retain better elasticity.

In practice, when the first clamping member 10 and the second clamping member 12 are ready to clamp the electrode of the battery to be tested, the bent portions in the plurality of conductive members will gradually touch the electrode. As the first clamping member 10 and the second clamping member 12 get closer and closer, each bent portion that contacts the electrode will be pressed by an external force, thereby generating a little deformation and slippage. Thereby, while the bent portion 142 (or the bent portion 146) is deformed and slipped, the protective film layer on the electrode can be scraped off. In addition, since the bent portion 142 (or the bent portion 146) is bent toward the first surface 10c, a gentler (for example, with a curved) side can be used to contact the electrode without directly using the bent portion 142 (or One end of the bent portion 146) scrapes off the protective film layer on the electrode to avoid leaving deep scratches on the electrode.

It is worth mentioning that although FIG. 4 illustrates that the conductive member 14 has a cantilever 140, a bent portion 142, a cantilever 144, a bent portion 146, and a connecting portion 148, this embodiment is not limited. In particular, the conductive member 14 may not include the cantilever 144, the bent portion 146, and the connecting portion 148. In some embodiments, the conductive member 14 may only have the cantilever 140 and the bent portion 142, for example, the cantilever 140 is fixed to the first surface 10c by welding or other means, and the cantilever 140 may also extend from the first surface 10c in appearance Then, the bent portion 142 is bent toward the first surface 10c. Even if the conductive member 14 only has the cantilever 140 and the bent portion 142, as the first clamping member 10 and the second clamping member 12 get closer and closer, the bent portion 142 will also be squeezed by an external force to produce a little deformation and Slip. In this way, the protective film layer on the electrode can also be scraped off, which can avoid the effect of leaving deep scratches on the electrode.

In practice, the conductive member 14 and the first clamping member 10 can use the same material, for example, a copper material with better conductivity. The first clamping member 10 and the conductive member 14 can be made through different processing steps (for example, stamping). For example, each conductive member 14 may be formed by bending a copper bar. The amount of current that the conductive member 14 can carry is related to the diameter of the copper bar. Assuming that the conductive member 14 is made of a copper bar capable of carrying 3 amperes of current, it means that each section of the conductive member 14 can carry 3 amperes of current. Those of ordinary skill in the art should understand that the cantilever 140 can receive a current of 3 amps from the first clamping member 10 and transmit it to the electrode. Similarly, the cantilever 144 can also receive a 3 ampere of electricity from the first clamping member 10 Current is passed to the electrode.

Following the above, in the example shown in FIG. 2, the first clamping member 10 is provided with ten groups of conductive members 14 in total, and each group has seven conductive members 14. In the case where the conductive member 14 has the cantilever 140 and the cantilever 144, the first clamping member 10 can transmit up to 420 amperes of current to the electrode. Of course, under other conditions unchanged, if the conductive member 14 has only the cantilever 140, the first clamping member 10 can only transmit the current of ampere to the electrode 210, which is less than the case with the cantilever 140 and the cantilever 144. In addition, if more amperes of current are to be transmitted to the electrode, it can be easily achieved by increasing the number of conductive members 14 and changing the material and diameter of the conductive members 14. The foregoing number of conductive members, the total number of conductive members, and the maximum current value that the conductive members can transmit are only used for demonstration and description, and this embodiment is not limited herein.

In one example, when the clip test device 1 is connected to a power supply, the charging current may only flow through the first clip 10. Please refer to FIG. 5, which is a schematic perspective view of a part of the clip-on test device according to an embodiment of the invention. As shown in FIG. 5, the surface of the second clamping member 12 facing the first clamping member 10 may further be provided with an insulating plate member 120. Here, the insulating plate 120 is disposed between the first clamping piece 10 and the second clamping piece 12, and the insulating plate piece faces the first surface 10 c of the first clamping piece 10. In other words, the second clamping member 12 and the first clamping member 10 can be insulated from each other, and the function of the second clamping member 12 is only to abut the side of the object to be measured (such as an electrode) and be clamped by the first The component 10 performs the process of scraping the protective film, charging or electrical testing. In practice, when the clip-on test device 1 further includes a voltage detection element 16, the voltage detection element 16 can perform scraping of the protective film layer, measurement of voltage, etc. by the second clamping element 12 abutting the side of the electrode jobs. At the same time, it is also possible to prevent the charging current from entering the second clamping member 12 and interfere with the accuracy of measuring the voltage. In other words, the area of the second clamping member 12 may be approximately the sum of the first clamping member 10 and the voltage detection member 16, which is not limited in this embodiment.

In summary, when the clip-type testing device provided by the present invention clamps the battery electrode to be tested, the conductive member can contact the battery electrode to be tested and scrape off the protective film layer, thereby eliminating the additional step of tearing off the protective film layer , Direct detection of battery voltage and current characteristics. In addition, since the clip-type testing device of the present invention uses the bent portion on the conductive member to contact the battery electrode to be tested, the scratches left by the conductive member on the electrode can be reduced, thereby avoiding damage to the battery to be tested.

1: Clip-on test device

10: The first clamping piece

10a: the first end

10b: the second end

10c: first surface

10d: second surface

100: fixed part

1000: opening

1002: opening

102: fixed part

1020: opening

1022: opening

104: fixed part

1040: opening

1042: opening

12: second clamping part

12a: third end

12b: fourth end

120: insulation board

14: conductive parts

140: cantilever

142: Bending section

144: Cantilever

146: Bending part

148: Connection

16: Voltage detection

θ: angle

FIG. 1 is a schematic perspective view of a clip-on test device according to an embodiment of the invention.

FIG. 2 is a schematic perspective view of a part of the clip-on testing device according to an embodiment of the invention.

3 is a schematic top view of a part of the first clamping member according to an embodiment of the invention.

4 is a schematic perspective view of a part of the conductive member according to an embodiment of the invention.

FIG. 5 is a schematic perspective view of a part of the clip-on testing device according to an embodiment of the invention.

no

1: Clip-on test device

10: The first clamping piece

10a: the first end

10b: the second end

10d: second surface

12: second clamping part

12a: third end

12b: fourth end

14: conductive parts

16: Voltage detection

Claims (9)

A clamp-type testing device includes: a first clamping member, which defines a first surface, a first end and a second end, the first clamping member is provided with a plurality of conductive members; and a second clamping member A piece defines a third end and a fourth end, the fourth end is connected to the second end, the third end and the first end are separated by a first distance, and the first of the first clamping member The surface faces the second clamping member; wherein each of the conductive members has a first cantilever and a first bent portion, the first bent portion is connected to the first cantilever, and the first cantilever is from the first surface Extending, and the first bending portion is bent toward the first surface at a first angle; each of the conductive members further has a second cantilever and a second bending portion, the second bending portion Connected to the second cantilever, the second cantilever extends from the first surface, and the second bending portion is bent toward the first surface at the first angle. The clip-on test device according to claim 1, wherein each of the conductive members further has a connection portion, the connection portion contacts the first clamping member, one end of the connection portion is connected to the first cantilever, and the The other end is connected to the second cantilever. The clip-type testing device according to claim 2, wherein the first holding member is provided with a first fixing portion, and the first fixing portion is used to catch at least part of the conductive members. The clip-type testing device according to claim 3, wherein the first clamping member defines a second surface relative to the first surface, and the first fixing portion has a first opening and a second opening, Of the conductive members that are clamped, the connection portion of each conductive member contacts the second surface, the first cantilever The first opening extends from the first surface, and the second cantilever extends from the first surface at the second opening. The clip-on test device according to claim 3, wherein the first holding member is provided with a second fixing portion, the second fixing portion is used to catch at least part of the conductive members, and the second fixing portion is parallel to The first fixing part. The clip-on test device according to claim 5, wherein the first clamping member defines a second surface relative to the first surface, and the second fixing portion has a third opening and a fourth opening, Among the clamped conductive members, the connection portion of each conductive member contacts the second surface, the first cantilever extends from the first surface at the third opening, and the second cantilever is at the The fourth opening extends from the first surface. The clip-on test device according to claim 5, wherein the second fixing portion is farther from the first end than the first fixing portion. The clip-on test device according to claim 5, wherein the distance between the second fixing portion and the first fixing portion is the same as the first end. The clip-on test device according to claim 1, wherein the second clamping member further has an insulating plate member, the insulating plate member is disposed between the first clamping member and the second clamping member, and the The insulating plate member faces the first surface.

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