CN211377633U

CN211377633U - Accumulator bridging device

Info

Publication number: CN211377633U
Application number: CN202020020449.5U
Authority: CN
Inventors: 兰海; 蒋宗广; 赵兰香; 商琼玲; 农永克; 蔡丽萍; 杨慧珍; 梁冰; 林桢; 党巍; 刘硕; 钟磊; 徐玉凤; 吴文健
Original assignee: GUANGZHOU QIANSHUN ELECTRONIC EQUIPMENT CO Ltd; Baise Power Supply Bureau of Guangxi Power Grid Co Ltd
Current assignee: GUANGZHOU QIANSHUN ELECTRONIC EQUIPMENT CO Ltd; Baise Power Supply Bureau of Guangxi Power Grid Co Ltd
Priority date: 2020-01-06
Filing date: 2020-01-06
Publication date: 2020-08-28
Anticipated expiration: 2030-01-06

Abstract

The utility model discloses a storage battery bridging device, which comprises a first diode, a second diode, a relay, a first jointing clamp, a second jointing clamp and a prompter, wherein the relay is a normally closed relay, and the working voltage of the relay is more than or equal to 12V; the anode of the first diode, the anode of the second diode and the anode of the prompter are connected with a first jointing clamp; the second binding clip is connected at the negative pole of prompting device, the negative pole at the second diode is connected to the first control end of relay, the second control end and the second binding clip of relay are connected, the negative pole at first diode is connected to the first controlled end of relay, the second controlled end and the second binding clip of relay are connected. The device can protect the freewheeling diode when reversely connected and give out prompt to avoid the damage of the device. The utility model discloses can wide application in direct current system overhauls the equipment field.

Description

Accumulator bridging device

Technical Field

The utility model belongs to the technical field of direct current system overhauls equipment and specifically relates to a battery bridging device.

Background

The storage battery is called as 'blood' of a direct current power supply system, is the best defense line for ensuring the normal operation of equipment, the service life of the storage battery is influenced by factors such as environment, temperature, float charge voltage, ripple waves, a charging mode, a maintenance mode and the like, the storage battery pack has insufficient capacity and changes parameters of individual batteries in long-term operation, such as insufficient capacity, overlarge internal resistance, abnormal terminal voltage and the like, or the individual batteries are damaged by external force, connection stress, shell fracture and the like, and the individual batteries are required to be arranged in the system and replaced.

If two groups of battery packs are adopted, the system can be parallel, the battery pack with the fault can be withdrawn from the system to operate, and the battery with the fault can be directly replaced, and under the condition that only one group of battery pack is adopted, the storage battery pack can not be opened or short-circuited, so that the replacement process of the storage battery with the fault is very difficult. The general approach is: the freewheeling diodes are connected to two sides of the storage battery to be replaced, as shown in fig. 5, the freewheeling diode D0 is connected across two ends of the storage battery B0 to be replaced, when the charger does not work, the freewheeling diode D0 is cut off in reverse phase, if the charger fails when the storage battery is replaced, the freewheeling diode D0 can connect the front and rear storage batteries to provide current for the direct current system. It is conceivable that if the freewheeling diode D0 were reversed, the battery B0 would discharge directly into the freewheeling diode D0, and the battery voltage (typically 12V) would be much greater than the conduction voltage of the two-transistor, thus the freewheeling diode D0 would burn directly.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, the utility model aims to provide a: the storage battery bridging device is provided to avoid the burning of a diode during reverse connection and remind an operator of reverse connection.

The utility model adopts the technical proposal that:

a storage battery bridging device comprises a first diode, a second diode, a relay, a first jointing clamp, a second jointing clamp and a prompter, wherein the relay is a normally closed relay, and the working voltage of the relay is more than or equal to 12V;

the anode of the first diode, the anode of the second diode and the anode of the prompter are connected with a first jointing clamp; the second jointing clamp is connected with the negative electrode of the prompter, the first control end of the relay is connected with the negative electrode of the second diode, the second control end of the relay is connected with the second jointing clamp, the first controlled end of the relay is connected with the negative electrode of the first diode, and the second controlled end of the relay is connected with the second jointing clamp;

or

The cathode of the first diode, the cathode of the second diode and the cathode of the prompter are connected with the first jointing clamp; the second binding clip is connected at the positive pole of prompting device, the positive pole at the second diode is connected to the first control end of relay, the second control end and the second binding clip of relay are connected, the positive pole at first diode is connected to the first controlled end of relay, the second controlled end and the second binding clip of relay are connected.

Further, the prompter comprises a buzzer circuit and/or a prompting lamp.

Further, the buzzer is formed by connecting a first resistor and the buzzer in series.

Furthermore, the prompting lamp is formed by connecting an LED lamp and a second resistor in series.

Further, the LED lamps are multiple and are connected in parallel.

Further, the LED lamp is arranged on the first binding clip or the second binding clip.

Further, the trigger voltage of the relay and the working voltage of the prompter are both greater than 12V.

The utility model has the advantages that: the first diode that this embodiment set up is as freewheeling diode to set up second diode and relay and be used for breaking the return circuit of first diode when the transposition, thereby the protection first diode, and set up the prompting device and come the production suggestion, make operating personnel know to have reversed the transposition.

Drawings

Fig. 1 is a schematic circuit diagram of a battery cross-over connection according to an embodiment of the present invention;

fig. 2 is a schematic circuit diagram of a battery cross-over connection according to another embodiment of the present invention;

FIG. 3 is a schematic illustration of the proper connection of the battery crossover assembly of FIG. 1;

FIG. 4 is a schematic illustration of the reverse connection of the battery jumper of FIG. 1;

fig. 5 is a schematic diagram of a conventional battery replacement by a freewheeling diode.

Detailed Description

The invention is further described with reference to the drawings and the specific embodiments.

Referring to fig. 1, the battery bridging device comprises a first diode D1, a second diode D2, a relay, a first jointing clamp K1, a second jointing clamp K2 and a prompter, wherein the relay is a normally closed relay and consists of an electromagnet C and a switch K, and the working voltage of the relay is more than or equal to 12V;

the anode of the first diode D1, the anode of the second diode D2 and the anode of the prompter are all connected with a first jointing clamp K1; the second binding clip K2 is connected at the negative pole of prompting device, the first control end of relay is connected at the negative pole of second diode D2, the second control end and the second binding clip K2 of relay are connected, the first controlled end of relay is connected at the negative pole of first diode D1, the second controlled end and the second binding clip K2 of relay are connected. It should be noted that the first control end, the second control end, the first controlled end, and the second controlled end of the relay of this embodiment are determined according to the connection relationship in the drawing.

In the embodiment, the indicator is formed by connecting an indicator lamp and a buzzer circuit in parallel, the buzzer circuit is formed by connecting a buzzer S and a first resistor R1 in series, and the indicator lamp is formed by connecting a light emitting diode LED and a second resistor R2 in series.

Referring to fig. 2, the present embodiment provides another connection relationship, and includes a first diode D1, a second diode D2, a relay, a first terminal clamp K1, a second terminal clamp K2, and a prompter, where the relay is a normally closed relay, and is composed of an electromagnet C and a switch K, and the working voltage of the relay is greater than or equal to 12V;

the negative electrode of the first diode D1, the negative electrode of the second diode D2 and the negative electrode of the prompter are connected with a first jointing clamp K1; the second binding clip K2 is connected at the positive pole of prompting device, the positive pole at second diode D2 is connected to the first control end of relay, the second control end and the second binding clip K2 of relay are connected, the first controlled end of relay is connected at the positive pole of first diode D1, the second controlled end and the second binding clip K2 of relay are connected. It should be noted that the first control end, the second control end, the first controlled end, and the second controlled end of the relay of this embodiment are determined according to the connection relationship in the drawing.

Referring to fig. 3, fig. 3 is a schematic diagram of the embodiment of fig. 1 properly connected in a battery pack, wherein when the charger is working normally, the system is provided with charge by the charger, the potential of the second terminal clamp K2 is higher than the potential of the first terminal clamp K1, i.e. the first diode D1, the second diode D2, the buzzer S and the light emitting diode LED are all non-conductive. If the battery B0 is removed and the charger fails unfortunately, the remaining battery pack will turn on the first diode D1, and at the same time, the electromagnet C, the buzzer and the LED lamp of the relay cannot be turned on because they are clamped by the first diode D1, and the first diode D1 can freewheel.

Referring to fig. 4, fig. 4 is a schematic diagram of the reverse connection of the embodiment of fig. 1 in a battery pack, wherein the voltage of the battery B0 to be replaced is greater than 12V, and is greater if the battery is a plurality of batteries. At this time, the voltage of battery B0 reaches the operating voltage of the relay. The relay can open the switch K, and at the moment, the power supply loop of the first diode D1 is disconnected, so that the first diode D1 cannot be burnt by the storage battery, and the relay plays a role in protection. Meanwhile, the light emitting diode LED and the buzzer S can emit light and sound respectively to remind field personnel that the device is reversely connected.

In a preferred embodiment, the LED lamps are multiple, and the LED lamps are connected in parallel. The LED lamp is arranged on the first binding clip or the second binding clip. In this embodiment, an LED light may be mounted on the binding clip to visibly indicate to the user that the device is reversed.

While the preferred embodiments of the present invention have been described, the present invention is not limited to the above embodiments, and those skilled in the art can make various equivalent modifications or substitutions without departing from the spirit of the present invention, and such equivalent modifications or substitutions are intended to be included within the scope of the present invention as defined by the appended claims.

Claims

1. The storage battery bridging device is characterized by comprising a first diode, a second diode, a relay, a first jointing clamp, a second jointing clamp and a prompter, wherein the relay is a normally closed relay, and the working voltage of the relay is more than or equal to 12V;

or

2. A battery bridging device as claimed in claim 1, wherein the indicator comprises a buzzer circuit and/or an indicator light.

3. A battery bridging device as claimed in claim 2, wherein the buzzer is formed by a series connection of a first resistor and a buzzer.

4. The battery strap arrangement of claim 2, wherein the indicator light is formed by an LED light in series with the second resistor.

5. The battery strap arrangement of claim 4, wherein a plurality of said LED lights are connected in parallel.

6. A battery bridging device as claimed in claim 4 or 5, wherein the LED light is provided on either the first or second terminal clip.