CN219144517U

CN219144517U - Charging and discharging conversion clamp

Info

Publication number: CN219144517U
Application number: CN202223030265.5U
Authority: CN
Inventors: 彭云峰
Original assignee: Huizhou Yiwei Energy Battery Co ltd; Eve Energy Co Ltd
Current assignee: Eve Energy Co Ltd
Priority date: 2022-11-15
Filing date: 2022-11-15
Publication date: 2023-06-06
Anticipated expiration: 2032-11-15

Abstract

The utility model relates to the field of cable conversion connectors, in particular to a charge-discharge conversion clamp, which comprises a conductive block, wherein one end of the conductive block is provided with a first connecting hole which is used for being connected with an EV equipment output port, the other end of the conductive block is provided with a second connecting hole with different sizes, the second connecting hole is used for being connected with a test piece output port, and the size of the second connecting hole is matched with the size of the test piece output port. The conversion fixture can be used for connecting test piece output ports of different sizes, solves the problem that different test piece specifications are not uniform and the suitability of the test piece output ports is poor, avoids repeated labor caused by inconsistent aperture specifications, increases test duration, causes resource waste, and can be connected more firmly by setting the size of the second connecting hole to be matched with the test piece output ports of different sizes, so that local resistance increase caused by connection looseness is prevented, and the conversion fixture is damaged. The conversion clamp is simple in structure, convenient to produce and low in production cost.

Description

Charging and discharging conversion clamp

Technical Field

The utility model relates to the field of cable conversion connectors, in particular to a charge-discharge conversion clamp.

Background

Electric Vehicle (EV for short). Test pieces such as a power battery pack, a battery plug box and a battery system which are common in the market are diversified, the adaptability of the output port specification and the output port of the existing EV equipment is poor, the inconsistent aperture specification can influence the installation and fastening reliability of the joint, the contact resistance is increased, the local hot melting of the joint in the heavy current output process is caused, and then the fire accident is derived.

In the prior art, electrical adhesive is used for insulation, but the electrical adhesive is affected by high temperature at the joint and is easy to fail, the risk of damaging a test piece by personnel electric shock and short circuit of positive and negative electrode bundles is increased, the suitability of the output port of the test piece and the output port of EV equipment is poor, and the processes of material collection and trial assembly and temporary outsourcing of screws, nuts, elastic pads and the like of different specifications are long, so that the starting time of a test is delayed, the test efficiency is affected, the sizes of different output ports and a conductive plate are not matched, the connection is not firm, and the phenomenon of hot melting is easy to cause.

Disclosure of Invention

The utility model aims to solve the problems that in the prior art, the suitability of an output port of EV equipment and an output port of a test piece is poor, the test efficiency is affected, different output ports are not matched with the size of a conducting plate, the connection is unstable, and a hot melting phenomenon is easy to cause, and provides a charge-discharge conversion clamp.

In order to achieve the above purpose, the technical scheme adopted by the utility model is as follows:

the utility model provides a charge-discharge conversion anchor clamps, includes the conducting block, first connecting hole has been seted up to conducting block one end, first connecting hole is used for connecting EV equipment output port, the second connecting hole of different sizes has been seted up to the other end of conducting block, the second connecting hole is used for connecting test piece output port, just the size of second connecting hole with test piece output port assorted.

The conversion clamp can be connected with test piece output ports of different sizes, can be connected with test pieces of power battery packs, battery plug boxes, battery systems and the like of different specifications, solves the problem that the specifications of the different test pieces are not uniform and the suitability of the test pieces with the output ports of EV equipment is poor, avoids repeated labor caused by inconsistent aperture specifications, increases test duration and causes waste of resources. By using the charge-discharge conversion clamp, the second connecting hole is arranged to be matched with the test piece output ports with different sizes, so that the test piece output ports can be connected more firmly, and the conversion clamp is prevented from being damaged due to local resistance increase caused by connection looseness.

As a preferable scheme of the utility model, the first connecting hole and the second connecting hole are connected with screws with matched sizes.

As a preferred embodiment of the present utility model, the screw is an inside/outside hexagonal screw.

As a preferable scheme of the utility model, the charge-discharge conversion clamp further comprises an insulating shell, wherein the insulating shell is used for wrapping the conductive block.

The outside at the conducting block sets up insulating housing, wraps up the conducting block through insulating housing, avoids personnel to flow the in-process contact department of plugging into and causes the personal injury of electric shock to and the external force effect causes the pencil short circuit to damage the test piece and arouses the condition of a fire.

As a preferred embodiment of the present utility model, the insulating housing includes an upper cover and a lower cover, and the upper cover and the lower cover are detachably connected.

As a preferred embodiment of the present utility model, the upper cover and the lower cover are connected by bolts.

As a preferable scheme of the utility model, the top of the lower cover is provided with a cross beam, the cross beam is matched with the upper cover, and the cross beam is used for clamping the conductive block.

The conducting blocks between the upper cover and the lower cover can be clamped through the cross beam in the lower cover, so that electric leakage caused by shaking of the conducting blocks in the using process is prevented.

As a preferable scheme of the utility model, the upper cover is internally provided with avoidance holes matched with the screws in size and number, and the avoidance holes are used for accommodating the screws.

By adopting the structure, the volume of the conversion clamp is reduced, the space is saved, and the conversion clamp is convenient to carry.

As a preferable scheme of the utility model, the conductive block is a brass structural member, and a gold film is plated on the outer surface of the conductive block.

The conductive block made of brass is used, and the outer surface of the conductive block is plated with gold, so that the conductive effect of the conductive block is further improved, and the problem that the conductive block is locally fused due to overlarge resistance is avoided, so that fire accidents are derived.

As a preferable scheme of the utility model, the bodies of the first connecting hole and the second connecting hole are tapping structural members.

Tapping treatment is carried out on the first connecting hole and the second connecting hole, so that the installation and fastening reliability of the joint is further improved, the local resistance is prevented from being increased due to weak contact, and further fire accidents are derived.

In summary, due to the adoption of the technical scheme, the beneficial effects of the utility model are as follows:

1. the conversion clamp can be connected with test piece output ports of different sizes, can be connected with test pieces of power battery packs, battery plug boxes, battery systems and the like of different specifications, solves the problem that the specifications of the different test pieces are not uniform and the suitability of the test pieces with the output ports of EV equipment is poor, avoids repeated labor caused by inconsistent aperture specifications, increases test duration and causes waste of resources. The conversion clamp is simple in structure, convenient to produce and low in production cost.

2. Through setting the size of second connecting hole to with not unidimensional test piece output port phase-match, can be with the more firm of test piece output port connection, prevent because the connection is not hard up leads to local resistance increase, damage conversion anchor clamps.

3. By using the charge-discharge conversion clamp, the conducting blocks between the upper cover and the lower cover can be clamped through the cross beam in the lower cover, electric leakage caused by shaking of the conducting blocks in the use process is prevented, the avoidance holes matched with the screws in size and number are formed in the upper cover, the space for accommodating the screws is formed, the size of the conversion clamp is reduced, the space is saved, and the conversion clamp is convenient to carry.

Drawings

FIG. 1 is an exploded view of the present charge-discharge conversion jig;

FIG. 2 is a schematic diagram of the structure of the charge-discharge conversion clamp after being connected to an output port

FIG. 3 is an exploded view of the present charge-discharge conversion jig after being connected to an output port;

FIG. 4 is a schematic diagram of a conductive block;

FIG. 5 is a schematic diagram of a conductive block to outer hex screw connection;

FIG. 6 is a schematic view of the upper cover structure;

fig. 7 is a schematic view of the structure of the lower cover.

Reference numerals in the drawings: 11-upper cover, 111-avoidance hole, 12-lower cover, 121-crossbeam, 2-conducting block, 21-EV equipment output port, 22-test piece output port, 231-first connecting hole, 232-second connecting hole, 24-screw.

Detailed Description

The present utility model will be described in detail with reference to the accompanying drawings.

The present utility model will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present utility model more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.

Example 1

As shown in fig. 1 to 4, a charge-discharge conversion jig includes a conductive block 2. The conducting block 2 is a rectangular body, a first connecting hole 231 is formed in one end of the conducting block 2, the first connecting hole 231 is detachably connected with the EV equipment output port 21, a plurality of second connecting holes 232 are formed in the other end of the conducting block 2, at least two sizes exist in the second connecting holes 232, the second connecting holes 232 are detachably connected with the test piece output port 22, and the sizes of the second connecting holes 232 are consistent with those of the test piece output port 22.

The conversion clamp can be connected with test piece output ports 22 with different sizes, solves the problem that the different test piece specifications are not uniform and the suitability of the test piece output ports 22 is poor, and avoids repeated labor caused by inconsistent aperture specifications, increases test duration and causes resource waste. By setting the size of the second connection hole 232 to match with the test piece output port 22 of different sizes, the test piece output port 22 can be connected more firmly, and the local resistance is prevented from being increased due to connection looseness, and the conversion clamp is prevented from being damaged.

In the embodiment, the conductive block 2 is made of pure brass, and the outer surface of the conductive block 2 is plated with a gold film of 20 μm, so that the conductive effect of the conductive block is further improved, and the problem that the conductive block 2 is locally fused due to overlarge resistance is avoided, so that fire accidents are derived. In the present embodiment, the length×width×height of the conductive block 2 is set to 300×290×20mm.

As shown in FIG. 5, the first connecting hole 231 is two tapping screw holes with a size phi 12mm, the DT-120 connecting terminal is used as the EV equipment output port 21 connected with the tapping screw holes, the aperture phi 12mm is used as the DT-120 connecting terminal, and the EV equipment output port 21 is made of pure brass. In use, EV device output port 21 is secured to first connection hole 231 by screw 24, screw 24 being an inside/outside hex screw of size m12×20.

The number of the second connecting holes 232 is three, and the second connecting holes are sequentially arranged

The test piece output port 22 connected with the screw hole is a pure brass wiring terminal with phi 6, phi 8 and phi 10mm respectively, and when in use, the test piece output port 22 is fixed with the second connecting hole 232 through the screw 24, and the screw 24 is an inner/outer hexagon screw with the specifications of M6×20, M8×20 and M10×20 respectively.

The first connecting holes 231 are arranged in two, so that two EV equipment output ports 21 can be connected simultaneously, and the EV equipment output ports can be connected with different test pieces in series and in parallel, so that complicated trial assembly and multiple wire harness conversion are avoided, and the installation timeliness is influenced.

Example 2

As shown in fig. 6 to 7, on the basis of embodiment 1, the present utility model further includes an insulating housing made of an insulating material, which can completely encapsulate the conductive block 2 to prevent personnel from getting electric shock. The insulating housing comprises an upper cover 11 and a lower cover 12 which are oppositely arranged up and down, a beam 121 is arranged in the lower cover 12, and the beam 121 in the lower cover 12 can tightly prop the conductive block 2 on the upper cover 11 to prevent the conductive block from shaking during use. The lower cover 12 is provided with a sunk bolt hole, and the upper cover and the lower cover are connected through bolts. The upper cover 11 is internally provided with the avoidance holes 111 which are matched with the screws 24 in size and number to form a space for accommodating the screws 24, so that the volume of the conversion clamp is reduced, the space is saved, and the conversion clamp is convenient to carry.

The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the utility model.

Claims

1. The utility model provides a charge-discharge conversion anchor clamps, its characterized in that, includes conducting block (2), first connecting hole (231) have been seted up to conducting block (2) one end, first connecting hole (231) are used for connecting EV equipment output port (21), second connecting hole (232) of different sizes have been seted up to conducting block (2) other end, second connecting hole (232) are used for connecting test piece output port (22), just the size of second connecting hole (232) with test piece output port (22) assorted.

2. The charge-discharge conversion fixture according to claim 1, wherein the first connecting hole (231) and the second connecting hole (232) are connected with screws (24) with matched sizes.

3. A charge-discharge conversion jig according to claim 2, wherein said screw (24) is an inside/outside hexagonal screw.

4. A charge-discharge conversion jig according to claim 2, further comprising an insulating housing for wrapping said conductive block (2).

5. The charge-discharge conversion jig according to claim 4, wherein the insulating housing comprises an upper cover (11) and a lower cover (12), the upper cover (11) and the lower cover (12) being detachably connected.

6. The charge-discharge conversion jig according to claim 5, wherein the upper cover (11) and the lower cover (12) are connected by bolts.

7. The charge-discharge conversion fixture according to claim 5, wherein a cross beam (121) is arranged at the top of the lower cover (12), the cross beam (121) is matched with the upper cover (11), and the cross beam (121) is used for clamping the conductive block (2).

8. The charge-discharge conversion fixture according to claim 5, wherein the upper cover (11) is provided with avoidance holes (111) with the sizes and the numbers matched with those of the screws (24), and the avoidance holes (111) are used for accommodating the screws (24).

9. The charge-discharge conversion fixture according to claim 1, wherein the conductive block (2) is a brass structural member, and a gold film is plated on the outer surface of the conductive block (2).

10. A charge-discharge conversion jig according to any one of claims 1 to 9, wherein the bodies of the first connection hole (231) and the second connection hole (232) are tapping structures.