CN212341275U - Test fixture with metal braided belt as flexible multipoint high-current contact surface - Google Patents
Test fixture with metal braided belt as flexible multipoint high-current contact surface Download PDFInfo
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- CN212341275U CN212341275U CN202021045605.XU CN202021045605U CN212341275U CN 212341275 U CN212341275 U CN 212341275U CN 202021045605 U CN202021045605 U CN 202021045605U CN 212341275 U CN212341275 U CN 212341275U
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- point ear
- bakelite
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Abstract
The utility model provides a test fixture of metal braid over braid as flexible multiple spot heavy current contact surface, including the bottom plate, not containing utmost point ear battery anchor clamps and containing utmost point ear battery anchor clamps, the one end of bottom plate is equipped with and does not contain utmost point ear battery anchor clamps, and the other end of bottom plate is equipped with and contains utmost point ear battery anchor clamps, does not contain utmost point ear battery anchor clamps and battery electrode vertical switching copper bar surface that contacts and the horizontal switching copper bar that contains utmost point ear battery anchor clamps and battery utmost point ear and contact all are equipped with the metal braid over braid on the surface respectively. The utility model has the advantages that: the utility model discloses set up two kinds of battery test fixture, satisfy the battery that does not contain utmost point ear and the battery simultaneous testing that contains utmost point ear, test convenient and fast.
Description
Technical Field
The utility model relates to a battery test fixture field, more specifically say and relate to a metal braid over braid is as battery test fixture of flexible multiple spot heavy current contact surface.
Background
The conventional battery test fixture is in hard contact with the battery at the contact position, so that the contact resistance is large, the overcurrent capacity is low, and the reduction of the contact surface is caused when the battery is not placed in place (not vertical and the like) easily during testing; especially for large current batteries, it can generate heat seriously; the testing precision of the battery is influenced, the battery, a testing clamp and the like can be damaged, and a fire disaster and the like can happen in severe cases;
the battery test fixture in the prior art can only be generally applied to batteries with single size and model, cannot meet the requirement that one test fixture can be compatible with batteries with various specifications and sizes, and generally does not have the function of adjusting pressing force;
the clamp in the prior art is generally used for a long time or at a high frequency, is influenced by the defects of metal fatigue deformation/abrasion and the like, has low testing precision and overcurrent capacity, cannot meet the testing requirement of higher current, and has the following problems:
1. the conventional battery clamp is in hard contact with the battery at the contact position, so that the contact resistance is large and the overcurrent capacity is low;
2. the conventional battery clamp is in hard contact with the battery, so that when the battery is not placed in place (not vertical and the like) easily during testing, the contact surface is reduced, and the heating is serious;
3. the prior art clamp is subjected to long-time/high-frequency tests, so that the contact surface between a battery and the clamp is easy to deform/wear, and the test precision is directly reduced;
4. the requirement of freely adjusting the pressing force to a certain extent cannot be met;
5. the requirements of compatibly testing batteries with different sizes and specifications in a certain range cannot be met;
6. the overcurrent capacity of the battery test clamp in the prior art is low, and the test requirement of higher current cannot be met;
7. the battery clamp in the prior art is inconvenient to replace the battery.
Disclosure of Invention
The utility model overcomes not enough among the prior art provides an adopt metal braid over braid as the battery test fixture of flexible multiple spot heavy current contact surface.
The purpose of the utility model is realized by the following technical scheme.
The utility model provides a test fixture of metal braid over braid as flexible multiple spot heavy current contact surface, includes the bottom plate, does not contain utmost point ear battery anchor clamps and contains utmost point ear battery anchor clamps, the one end of bottom plate is equipped with does not contain utmost point ear battery anchor clamps, the other end of bottom plate is equipped with contains utmost point ear battery anchor clamps, do not contain the vertical switching copper bar surface that utmost point ear battery anchor clamps and battery electrode contacted with horizontal switching copper bar that contains utmost point ear battery anchor clamps and battery utmost point ear and contact all is equipped with the metal braid over braid on the surface respectively.
Furthermore, a heat dissipation long hole is formed in the bottom plate.
Further, do not contain utmost point ear battery anchor clamps still include bakelite regulating plate, bakelite transverse regulation piece, do not contain utmost point ear battery's toggle subassembly, do not contain utmost point ear battery anchor clamps golden finger connecting piece and do not contain utmost point ear battery's PCB board, do not contain utmost point ear battery's toggle clamp subassembly the horizontal regulating piece of bakelite all sets up on the bakelite regulating plate, do not contain utmost point ear battery's toggle clamp subassembly the horizontal regulating piece of bakelite with form battery accommodation space between the vertical switching copper bar, vertical switching copper bar with the bottom plate passes through screwed connection, do not contain utmost point ear battery anchor clamps PCB board with the bottom plate passes through screwed connection, do not contain utmost point ear battery anchor clamps golden finger connecting piece and vertical switching copper bar and use riveted connection earlier, then weld reinforcement.
Further, one side that the bakelite regulating plate is close to the battery is equipped with transverse connection slot hole and longitudinal connection slot hole, the bakelite regulating plate is equipped with the longitudinal heat dissipation slot hole on the surface, the longitudinal heat dissipation slot hole with heat dissipation slot hole on the bottom plate corresponds the range, be equipped with the connection round hole on the four corners of bakelite regulating plate, bakelite transverse adjustment piece pass through the screw with transverse connection slot hole realizes connecting, the bakelite regulating plate through connect round hole, screw with the bottom plate links to each other.
Further, the elbow that does not contain utmost point ear battery presss from both sides the subassembly including horizontal pressure formula elbow clamp and fixture block, the bottom slidable ground of fixture block sets up in the longitudinal tie-in slot, the fixture block comprises the movable block of fixture block casing, fixture block and the spring of fixture block, the movable block of fixture block the spring of fixture block all sets up in the fixture block casing, the movable block's of fixture block one end with the spring of fixture block is connected, the movable block's of fixture block the other end with horizontal pressure formula elbow clamp is connected.
Furthermore, one side of the vertical switching copper bar non-contact battery electrode is provided with a bakelite supporting block.
Furthermore, the battery clamp with the lug comprises a battery supporting plate, two clamping assemblies with the battery clamp with the lug, a golden finger connecting piece with the battery clamp with the lug and a PCB board with the battery clamp with the lug, the two clamping assemblies with the battery clamp with the lug are arranged at the front end of the battery supporting plate, the horizontal switching copper bar is arranged below the clamping assemblies with the battery clamp with the lug, the horizontal switching copper bar is connected with the bottom plate through screws, the PCB board with the battery clamp with the lug is connected with the bottom plate through screws, and the golden finger connecting piece with the battery clamp with the horizontal switching copper bar is firstly riveted and then welded and reinforced.
Further, the clamp subassembly that contains utmost point ear battery anchor clamps includes horizontal elbow clamp and spring pressure plate, spring pressure plate includes spring pressure plate's casing, spring pressure plate's spring and spring pressure plate's fly leaf, spring pressure plate's spring the fly leaf setting of spring pressure plate is in inside formation of spring pressure plate's casing with battery utmost point ear contact surface, non-with battery utmost point ear contact the one side of casing with horizontal elbow presss from both sides continuously.
Furthermore, a connecting hole is formed in the battery supporting plate and connected with the bottom plate through a screw.
Furthermore, the metal braided belt is formed by interweaving a plurality of metal wires with small wire diameters.
The utility model has the advantages that:
the bottom plate, the bakelite adjusting plate and the battery supporting plate are provided with heat dissipation long holes to play a role in heat dissipation;
the bakelite adjusting plate is provided with a transverse connecting long hole, and the bakelite transverse adjusting block is connected with the bakelite adjusting plate through a screw and the transverse connecting long hole, so that the installation position of the bakelite transverse adjusting block on the bakelite adjusting plate can be adjusted, and the compatibility with batteries in a certain size range can be realized;
the metal woven belt is formed by weaving a plurality of metal wires with small wire diameters in a staggered mode, is relatively soft, is flexible and has certain elasticity, the metal woven belt is used as a contact of a battery clamp, the contact resistance with a battery tab is small, and the requirement for the verticality of the battery is further lowered;
the metal braided belt is woven in a staggered mode through small wire diameters, has certain flexibility, can achieve the multi-point large-area contact effect at the contact position with the battery, reduces the contact resistance, and solves the contact failure possibly caused by the inclined contact with the contact position of the battery through the flexibility;
by means of the elastic effect of the metal braided belt, loss caused by long-time/high-frequency tests is compensated, so that contact resistance is guaranteed, and heating is reduced;
the metal braided strap is used as a contact, and the size of the braided strap can be set at will, so that the compatibility of different batteries can be conveniently realized, and the common clamp can be realized at different lug positions for batteries with a certain size range;
the metal braided belt is used as a contact, so that the cost is low, and special processing is not needed;
through a copper bar connection or golden finger opposite insertion structure, the whole clamp can be conveniently and directly connected in an opposite insertion mode, the whole clamp can be plugged and pulled when a battery is replaced, and the application range is remarkably improved;
for the test fixture of a common square battery (without a pole lug), a spring is arranged inside the elbow clamp, and the pressure value can be set for the fixture by adjusting a nut on the elbow clamp.
The utility model discloses set up two kinds of battery test fixture, satisfy the battery that does not contain utmost point ear and the battery simultaneous testing that contains utmost point ear, test convenient and fast.
Drawings
Fig. 1 is a first perspective view of the present invention;
FIG. 2 is a second perspective view of the present invention;
FIG. 3 shows the positional relationship among a group of clamp assemblies of the battery clamp with the electrode tabs, the horizontal type switching copper bars and the metal woven belts;
in the figure:
1. a base plate; 2. a heat dissipation long hole; 3. a bakelite adjusting plate; 4. a battery without tabs;
5. vertical switching copper bars; 6. horizontal switching copper bars; 7. a gold finger connector;
8. a bakelite support block; 9. a PCB board; 10. a bakelite transverse adjusting block; 11. a battery with tabs;
12. a metal braid; 13. horizontal elbow clamps; 14. transversely pressing the elbow clip; 15. a clamping block;
16. a movable block; 17. the transverse connection long hole; 18. a longitudinal connecting long hole; 19. the connecting circular hole;
20. connecting holes; 21. a battery support plate; 22. a longitudinal heat dissipation long hole; 23. a housing of a spring pressure plate;
24. a movable plate of the spring pressure plate.
Detailed Description
The technical solution of the present invention is further explained by the following specific examples.
Example 1
As shown in fig. 1 and 2, the test fixture of the metal woven belt as the flexible multipoint large-current contact surface comprises a base plate 1, a tab-free battery fixture and a tab-containing battery fixture, wherein the tab-free battery fixture is arranged at one end of the base plate 1, the tab-containing battery fixture is arranged at the other end of the base plate 1, the surface of a vertical type switching copper bar 5 which is in contact with a battery electrode and the surface of a horizontal type switching copper bar 6 which is in contact with the battery tab and contains the tab-free battery fixture are respectively provided with the metal woven belt 12.
Example 2
As shown in fig. 1 and 2, a metal woven belt is used as a testing fixture of a flexible multipoint large-current contact surface, and comprises a bottom plate 1, a tab-free battery fixture and a tab-containing battery fixture, wherein the tab-free battery fixture is arranged at one end of the bottom plate 1, the tab-containing battery fixture is arranged at the other end of the bottom plate 1, the surface of a vertical type switching copper bar 5 which does not contain the tab-free battery fixture and is in contact with a battery electrode and the surface of a horizontal type switching copper bar 6 which contains the tab-free battery fixture and is in contact with the battery tab are respectively provided with a metal woven belt 12, and the bottom plate 1.
Example 3
As shown in fig. 1 and 2, a test fixture with a metal woven belt as a flexible multipoint large-current contact surface comprises a bottom plate 1, a tab-free battery fixture and a tab-containing battery fixture, wherein the tab-free battery fixture is arranged at one end of the bottom plate 1, the tab-containing battery fixture is arranged at the other end of the bottom plate 1, the metal woven belt 12 is respectively arranged on the surface of a vertical type switching copper bar 5, which is in contact with a battery electrode, of the tab-free battery fixture, and the surface of a horizontal type switching copper bar 6, which is in contact with the battery tab, of the tab-containing battery fixture, and the heat dissipation long hole 2 is; the metal braided belt 12 is formed by interweaving a plurality of metal wires with small wire diameters.
It still includes bakelite regulating plate 3, bakelite transverse regulation piece 10, the toggle clamp subassembly that does not contain utmost point ear battery, golden finger connecting piece 7 that does not contain utmost point ear battery anchor clamps and PCB board 9 that does not contain utmost point ear battery, the toggle clamp subassembly that does not contain utmost point ear battery, the horizontal regulating piece 10 of bakelite all set up on bakelite regulating plate 3, form battery accommodation space between the toggle clamp subassembly that does not contain utmost point ear battery, the horizontal regulating piece 10 of bakelite and the vertical switching copper bar 5, vertical switching copper bar 5 and bottom plate 1 pass through screwed connection, and PCB board 9 that does not contain utmost point ear battery anchor clamps passes through screwed connection with bottom plate 1, and golden finger connecting piece 7 that does not contain utmost point ear battery anchor clamps and vertical switching copper bar 5 use rivet connection earlier, then weld reinforcement.
One side that bakelite regulating plate 3 is close to battery 4 that does not contain utmost point ear is equipped with transverse connection slot hole 17 and longitudinal connection slot hole 18, bakelite regulating plate 3 is equipped with longitudinal heat dissipation slot hole 22 on the surface, longitudinal heat dissipation slot hole 22 corresponds the range with heat dissipation slot hole 2 on the bottom plate 1, the intercommunication form of slot hole realizes ventilating about longitudinal heat dissipation slot hole 22 aligns formation with heat dissipation slot hole 2, be equipped with on the four corners of bakelite regulating plate 3 and connect round hole 19, bakelite transverse adjusting block 10 passes through the screw and realizes being connected with transverse connection slot hole 17, bakelite regulating plate 3 is through connecting round hole 19, the screw links to each other with bottom plate 1.
Elbow clamp subassembly that does not contain utmost point ear battery includes cross pressure formula elbow clamp 14 and fixture block 15, and fixture block 15's bottom slidable ground sets up in vertical connection slot hole 18, and fixture block 15 comprises the movable block 16 of fixture block casing, fixture block and the spring of fixture block, movable block 16 the spring of fixture block all sets up in the fixture block casing, the one end of movable block 16 with the spring of fixture block is connected, and the other end of movable block 16 is connected with cross pressure formula elbow clamp 14. When the battery pressing device works, a battery 4 without a lug is placed in the battery accommodating space, one end of a battery electrode faces the vertical adapter copper bar 5, and after the transverse pressing type elbow clamp 14 is locked, the movable block 16 presses the spring to enable the fixture block 15 to slide in the longitudinal connecting long hole 18, so that the fixture block 15 presses the surface of the battery 4, and the battery 4 is enabled to be attached to the vertical adapter copper bar 5; one side of the vertical adapter copper bar 5 non-contact battery electrode is provided with a bakelite supporting block 8.
The battery clamp with the lug comprises a battery supporting plate 21, two clamp assemblies containing the battery clamp with the lug, a golden finger connecting piece 7 containing the battery clamp with the lug and a PCB 9 containing the battery clamp with the lug, wherein the two clamp assemblies containing the battery clamp with the lug are arranged at the front end of the battery supporting plate 21, horizontal switching copper bars 6 are arranged below the two clamp assemblies containing the battery clamp with the lug, the horizontal switching copper bars 6 are connected with a bottom plate 1 through screws, the PCB 9 containing the battery clamp with the lug is connected with the bottom plate 1 through screws, and the golden finger connecting piece 7 containing the battery clamp with the lug is connected with the horizontal switching copper bars 6 through rivets and then welded and reinforced; the battery support plate 21 is provided with a connection hole 20, and the connection hole 20 is connected to the base plate 1 by a screw.
A longitudinal heat dissipation long hole 22 is formed in the battery support plate 21, the longitudinal heat dissipation long hole 22 is arranged corresponding to the heat dissipation long hole 2 in the bottom plate 1, and the longitudinal heat dissipation long hole 22 is aligned with the heat dissipation long hole 2 to form a communication shape of an upper long hole and a lower long hole to realize ventilation;
as shown in fig. 3, the clamping assembly of the tab-containing battery clamp includes a horizontal elbow clamp 13 and a spring pressure plate, the spring pressure plate includes a casing 23 of the spring pressure plate, a spring of the spring pressure plate and a movable plate 24 of the spring pressure plate, the spring of the spring pressure plate and the movable plate 24 of the spring pressure plate are arranged inside the casing 23 of the spring pressure plate to form a contact surface with a battery tab, one surface of the casing which is not in contact with the battery tab is connected with the horizontal elbow clamp 13, when the clamp works, a battery is placed on the battery support plate 21, two battery tabs are placed between the spring pressure plate and the horizontal adapter copper bar 6, and after the horizontal elbow clamp 13 is locked, the movable plate of the spring pressure plate extrudes the spring to clamp the battery tab through the spring pressure plate and the horizontal adapter copper bar.
The golden finger connectors and the PCB board involved in the above embodiments are all the prior art, and do not involve structural improvement.
The working process is as follows:
during operation, a battery 11 containing a tab is placed on a battery supporting plate 21 at one end of a battery clamp containing the tab, the tab of the battery is placed between the two spring pressure plates and the horizontal type switching copper bar 6, and after the horizontal type elbow clamp 13 is locked, the movable plate of the spring pressure plate extrudes the spring to clamp the tab of the battery by the spring pressure plates and the horizontal type switching copper bar 6;
placing a battery 4 without a tab on the bakelite adjusting plate 3 at one end of the battery clamp without the tab, wherein one end of a battery electrode faces the vertical adapter copper bar 5, and when the transverse pressing type elbow clamp 14 is locked, the movable block 16 extrudes the spring to enable the fixture block 15 to slide in the longitudinal connecting long hole 18, so that the fixture block 15 extrudes the surface of the battery 4, and the battery 4 is tightly attached to the vertical adapter copper bar 5; one side of the vertical adapter copper bar 5 non-contact battery electrode is provided with a bakelite supporting block 8.
The above description has been made in detail for the three embodiments of the present invention, but the above description is only for the preferred embodiment of the present invention, and should not be construed as limiting the scope of the present invention. All the equivalent changes and improvements made according to the application scope of the present invention should still fall within the patent coverage of the present invention.
Claims (10)
1. The utility model provides a test fixture of flexible multiple spot heavy current contact surface is taken as to metal braid over braid, its characterized in that: including the bottom plate, do not contain utmost point ear battery anchor clamps and contain utmost point ear battery anchor clamps, the one end of bottom plate is equipped with does not contain utmost point ear battery anchor clamps, the other end of bottom plate is equipped with contains utmost point ear battery anchor clamps, do not contain the vertical switching copper bar surface that utmost point ear battery anchor clamps and battery electrode contacted with horizontal switching copper bar that contains utmost point ear battery anchor clamps and battery utmost point ear and all be equipped with the metal braid over braid on the surface respectively.
2. The metal braid as claimed in claim 1 as a test fixture for a flexible multi-point high current contact surface, wherein: and the bottom plate is provided with a heat dissipation long hole.
3. The metal braid as claimed in claim 2 as a test fixture for flexible multi-point high current contact surface, wherein: it still includes bakelite regulating plate, bakelite transverse regulation piece, the elbow clamp subassembly that does not contain utmost point ear battery, the golden finger connecting piece that does not contain utmost point ear battery anchor clamps and the PCB board that does not contain utmost point ear battery, the elbow clamp subassembly that does not contain utmost point ear battery the bakelite transverse regulation piece all sets up on the bakelite regulating plate, the elbow clamp subassembly that does not contain utmost point ear battery the horizontal regulating piece of bakelite with form battery accommodation space between the vertical switching copper bar, vertical switching copper bar with the bottom plate passes through screwed connection, the PCB board that does not contain utmost point ear battery anchor clamps with the bottom plate passes through screwed connection, the golden finger connecting piece that does not contain utmost point ear battery anchor clamps uses rivet connection with vertical switching copper bar earlier, then welds the reinforcement.
4. The metal braid as claimed in claim 3 as a test fixture for flexible multi-point high current contact surface, wherein: one side that the bakelite regulating plate is close to the battery is equipped with transverse connection slot hole and longitudinal connection slot hole, the bakelite regulating plate is equipped with the longitudinal heat dissipation slot hole on the surface, the longitudinal heat dissipation slot hole with heat dissipation slot hole on the bottom plate corresponds the range, be equipped with the connection round hole on the four corners of bakelite regulating plate, bakelite transverse adjustment piece pass through the screw with the transverse connection slot hole is realized connecting, the bakelite regulating plate through connect round hole, screw with the bottom plate links to each other.
5. The metal braid as claimed in claim 4 as a test fixture for flexible multi-point high current contact surface, wherein: the elbow that does not contain utmost point ear battery presss from both sides subassembly includes cross pressure formula elbow and fixture block, the bottom slidable ground of fixture block sets up in the longitudinal tie trompil, the fixture block comprises the movable block of fixture block casing, fixture block and the spring of fixture block, the movable block of fixture block the spring of fixture block all sets up in the fixture block casing, the one end of the movable block of fixture block with the spring of fixture block is connected, the other end of the movable block of fixture block with the cross pressure formula elbow presss from both sides and is connected.
6. The metal braid as claimed in claim 5 as a test fixture for flexible multi-point high current contact surface, wherein: one side of the vertical switching copper bar non-contact battery electrode is provided with a bakelite supporting block.
7. The metal braid as claimed in claim 1 as a test fixture for a flexible multi-point high current contact surface, wherein: the lug-containing battery clamp comprises a battery supporting plate, two clamp assemblies containing the lug battery clamp, a golden finger connecting piece containing the lug battery clamp and a PCB (printed circuit board) containing the lug battery clamp, the front end of the battery supporting plate is provided with the two clamp assemblies containing the lug battery clamp, the two lower parts of the clamp assemblies containing the lug battery clamp are respectively provided with the horizontal switching copper bar, the horizontal switching copper bar is connected with the bottom plate through screws, the PCB containing the lug battery clamp is connected with the bottom plate through screws, and the golden finger connecting piece containing the lug battery clamp is firstly connected with the horizontal switching copper bar by rivets and then welded and reinforced.
8. The metal braid as claimed in claim 7 as a test fixture for flexible multi-point high current contact surface, wherein: the clamp assembly of the pole lug-containing battery clamp comprises a horizontal elbow clamp and a spring pressure plate, wherein the spring pressure plate comprises a shell of the spring pressure plate, a spring of the spring pressure plate and a movable plate of the spring pressure plate, the spring of the spring pressure plate is arranged in the shell of the spring pressure plate, a pole lug contact surface is formed in the shell of the spring pressure plate, and the pole lug contact surface is not contacted with the pole lug of the battery, one surface of the shell is connected with the horizontal elbow clamp.
9. The metal braid as claimed in claim 8 as a test fixture for flexible multi-point high current contact surface, wherein: the battery supporting plate is provided with a connecting hole, and the connecting hole is connected with the bottom plate through a screw.
10. The metal braid as claimed in any one of claims 1 to 9 as a test fixture for a flexible multi-point high current contact surface, wherein: the metal braided belt is formed by interweaving a plurality of metal wires with small wire diameters.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021045605.XU CN212341275U (en) | 2020-06-09 | 2020-06-09 | Test fixture with metal braided belt as flexible multipoint high-current contact surface |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021045605.XU CN212341275U (en) | 2020-06-09 | 2020-06-09 | Test fixture with metal braided belt as flexible multipoint high-current contact surface |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212341275U true CN212341275U (en) | 2021-01-12 |
Family
ID=74077008
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021045605.XU Active CN212341275U (en) | 2020-06-09 | 2020-06-09 | Test fixture with metal braided belt as flexible multipoint high-current contact surface |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212341275U (en) |
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2020
- 2020-06-09 CN CN202021045605.XU patent/CN212341275U/en active Active
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