CN212517778U - Connecting terminal for vehicle-mounted charging motor - Google Patents

Abstract

An object of the utility model is to provide a vehicle-mounted connecting terminal for machine that charges, a serial communication port, include: the plug is used for being connected with a charging power supply end and outputting charging power to the vehicle-mounted charger, and the socket is arranged on the vehicle-mounted charger and corresponds to the plug; wherein, the outer side of the CAN signal contact on the plug is provided with a first magnet; a second magnet is arranged on the outer side of the CAN signal contact on the socket; the first magnet and the second magnet are matched in shape and are used for forming a magnet with closed magnetic force lines when the socket is combined with the plug. The utility model discloses a signal line contact outside on-vehicle machine plug and the socket that charges sets up the first magnet and the second magnet that the shape matches each other to make first magnet and second magnet constitute a magnetic line of force confined magnet, thereby pass through the magnet with the signal line terminal and surround, restrain EMI, prevent to produce higher harmonic in the CAN bus.

Description

Connecting terminal for vehicle-mounted charging motor

Technical Field

The utility model relates to an on-vehicle charger device especially relates to a connecting terminal assembly of on-vehicle usefulness of charging.

Background

The vehicle-mounted charger is fixedly arranged on the electric automobile, has the capability of safely and automatically charging the power battery of the electric automobile, and can dynamically adjust charging current or voltage parameters according to data provided by a battery management system, execute corresponding actions and complete the charging process.

According to fig. 1-2, it CAN be known that the influence of current on the CAN bus communication is considered in the existing vehicle-mounted charger connection terminal, and electromagnetic isolation is performed by means of a shielding wire and the like.

However, if the power lines in the terminals are slightly close to the CAN bus during the manufacturing process, high-frequency harmonics CAN be generated and the data acquisition of the battery management system CAN be affected. If the distance between the power line in the terminal and the CAN bus is adjusted too much, the final terminal volume is easily too large, and the use is inconvenient.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a connecting terminal subassembly of on-vehicle usefulness of charging can effectively prevent higher harmonic under the prerequisite that does not increase on-vehicle machine connecting plug that charges size.

The utility model provides a technical scheme that above-mentioned technical problem took is: on-vehicle connecting terminal for machine that charges includes:

the plug is used for being connected with a charging power supply end to output charging power to the vehicle-mounted charger;

the socket is arranged on the vehicle-mounted charger and corresponds to the plug;

a first magnet is arranged on the outer side of the CAN signal contact on the plug;

a second magnet is arranged on the outer side of the CAN signal contact on the socket;

the first magnet and the second magnet are matched in shape and used for forming a magnet with closed magnetic force lines when the socket is combined with the plug.

A magnet composed of the second magnet and the first magnet is arranged outside the charging connection confirmation contact on the socket;

the first magnet is integrally arranged on the outer side of the end face of the plug;

the second magnet is integrally formed and arranged on the outer side of the end face of the socket.

An additional bar magnet is arranged on the outer side of the second magnet;

the additional bar magnet has a polarity opposite to that of the nearest semi-circular magnet of the additional bar magnet.

The utility model discloses the beneficial effect who brings does: the utility model discloses a signal line contact outside on-vehicle machine plug and the socket that charges sets up the first magnet and the second magnet that the shape matches each other to make first magnet and second magnet constitute a magnetic line of force confined magnet, thereby pass through the magnet with the signal line terminal and surround, restrain EMI, prevent to produce higher harmonic in the CAN bus.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, 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 layout diagram of contacts of a plug of a conventional charger.

Fig. 2 is a layout diagram of contacts of a conventional charger socket.

Fig. 3 shows an embodiment of the socket of the present invention.

Figure 4 is a contact layout view of a plug corresponding to figure 3.

Fig. 5 shows another embodiment of the socket of the present invention.

Figure 6 is a contact layout view of a plug corresponding to figure 5.

Fig. 7 shows a further embodiment of the socket of the present invention.

Fig. 8 is a schematic view of the magnetic field lines in fig. 7.

Wherein the content of the first and second substances,

the arrow direction in fig. 8 is a magnetic line direction.

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 any creative effort belong to the protection scope of the present invention.

On-vehicle machine connecting terminal that charges, include: the charging device comprises a plug 1 used for being connected with a charging power supply end and outputting charging power to the vehicle-mounted charger, and a socket 2 arranged on the vehicle-mounted charger and corresponding to the plug 1;

wherein, the outer side of the CAN signal contact on the plug 1 is provided with a first magnet 3; a second magnet 4 is arranged on the outer side of the CAN signal contact on the socket 2; the first magnet 3 is matched in shape to the second magnet 4 for forming a magnet with closed magnetic lines of force when the socket 2 is combined with the plug 1.

The CAN signal contacts herein include charging communication 1S + and charging communication 2S-as well as charging confirmation connection 1CC1 and charging confirmation connection 2CC 2.

If the charging confirmation connection 1CC1 and the charging confirmation connection 2CC2 interfere with each other, the vehicle-mounted charger receives an error connection signal, and the vehicle cannot be charged.

In practical use, it may be considered to enclose the charging communication 1S + and the charging communication 2S-and the charging confirmation connection 1CC1 and the charging confirmation connection 2CC2 using a magnetic ring constituted by the first magnet 3 and the second magnet 4. However, EMI is suppressed by placing the DC + and DC-contacts closest to the power supply, taking into account production costs. Since the charging communication 1S + and the charging communication 2S-are far from the power supply, no other means for suppressing EMI may be provided.

Finally, after the charge confirmation connection 1CC1 and the charge confirmation connection 2CC2 are looped around by the first magnet 3 and the second magnet 4, it CAN be ensured that the charge confirmation connection 1CC1 and the charge confirmation connection 2CC2 send correct connection signals into the CAN bus.

Specific example I: as shown in fig. 3 to 4, a magnet composed of a second magnet 4 and a first magnet 3 is provided outside the charging connection confirmation contact on the receptacle 2; the first magnet 3 is integrally arranged on the outer side of the end face of the plug 1; the second magnet 4 is integrally provided outside the end face of the socket 2.

Preferably, the first magnet 3 is two semicircular magnets oppositely arranged; the second magnet 4 is two bar magnets arranged in parallel; the semi-circular magnet is opposite to the corresponding end part of the bar magnet in magnetism; the two semicircular magnets and the two strip magnets form an annular magnet with closed magnetic force lines.

Specific example II: in practical production, the first magnet 3 is two semicircular magnets arranged oppositely, and the second magnet 4 can be flexibly arranged.

As shown in fig. 5 to 6, the first magnet 3 is integrally formed on the outer side of the end face of the socket 2; the second magnet 4 is integrally provided outside the end face of the plug 1. Preferably, the first magnet 3 is two semicircular magnets oppositely arranged; the second magnet 4 is two bar magnets arranged in parallel; the semi-circular magnet is opposite to the corresponding end part of the bar magnet in magnetism; the two semicircular magnets and the two strip magnets form an annular magnet with closed magnetic force lines.

For convenience of plugging and unplugging, the contact surface of the first magnet 3 and the second magnet 4 is an inclined surface for convenience of plugging and unplugging.

Specifically, the first magnet 3 and the second magnet 4 are both in a tooth shape with smaller and smaller convex surfaces. Finally, the first magnet 3 and the second magnet 4 are matingly engaged together to form a complete ring.

Through the arrangement of the first magnet 3 and the second magnet 4, on one hand, the EMI suppression of the CAN signal contact CAN be realized; meanwhile, due to the fact that the first magnet 3 and the second magnet 4 are matched, the plug can be prevented from being inserted mistakenly, and use safety is guaranteed.

Specific example III: because first magnet 3, second magnet 4 respectively the shaping on the plug or the socket of connecting respectively, have certain clearance between first magnet 3 and the second magnet 4, form the magnetic leakage easily, still have the interference to CAN bus transmission.

In order to ensure the EMI suppression effect, as shown in FIGS. 7-8, an additional bar magnet 5 is arranged outside the second magnet 4; the polarity of the additional bar magnet 5 is opposite to that of the semicircular magnet closest to the additional bar magnet 5 and the length of the additional bar magnet 5 is greater than that of the second magnet 4.

Because the end magnetic pole of the additional bar magnet 5 is opposite to the magnetic pole of the first magnet 3, a mutual conductive magnetic line is formed, and the gap between the first magnet 3 and the second magnet 4 is blocked by the magnetic field formed between the additional bar magnet 5 and the first magnet 3, so that high-efficiency EMI suppression is formed.

It is to be understood that: the prior art does not make the best use of the method.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, but rather as the invention is intended to cover all modifications, equivalents and improvements falling within the spirit and principles of the present invention.

Claims (7)

1. On-vehicle connecting terminal for machine that charges, its characterized in that includes:

the plug is used for being connected with a charging power supply end to output charging power to the vehicle-mounted charger;

the socket is arranged on the vehicle-mounted charger and corresponds to the plug;

a first magnet is arranged on the outer side of the CAN signal contact on the plug;

a second magnet is arranged on the outer side of the CAN signal contact on the socket;

the first magnet and the second magnet are matched in shape and used for forming a magnet with closed magnetic force lines when the socket is combined with the plug.

2. The connection terminal for a vehicle-mounted charger according to claim 1,

and a magnet composed of the second magnet and the first magnet is arranged outside the charging connection confirmation contact on the socket.

3. A connection terminal for a vehicle-mounted charger according to claim 1 or 2,

the first magnet is integrally arranged on the outer side of the end face of the plug;

the second magnet is integrally formed and arranged on the outer side of the end face of the socket.

4. The connection terminal for a vehicle charging terminal according to claim 3,

the contact surface of the first magnet and the second magnet is an inclined surface convenient for pulling and inserting.

5. A connection terminal for a vehicle-mounted charger according to claim 4,

the first magnet is two semicircular magnets which are oppositely arranged;

the second magnet is two strip magnets which are arranged in parallel;

the semi-circular magnet is opposite to the corresponding end part of the bar magnet in magnetism;

the two semicircular magnets and the two strip magnets form an annular magnet with closed magnetic force lines.

6. A connection terminal for a vehicle-mounted charger according to claim 5,

an additional bar magnet is arranged on the outer side of the second magnet;

the additional bar magnet has a polarity opposite to that of the nearest semi-circular magnet of the additional bar magnet.

7. A connection terminal for a vehicle-mounted charger according to claim 6,

the length of the additional bar magnet is greater than the length of the second magnet.

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