CN217544715U - Deep discharge equipment for repairing storage battery - Google Patents

Abstract

The utility model provides a deep discharge device for repairing storage batteries, which comprises a seat frame, a power interface, a control module, an electric control switch and at least two loads; the electric control switch is provided with at least two channels with logical AND, and the control end of the electric control switch is connected with the control module; each channel interface of the electric control switch is electrically connected with one end of the load respectively; the load is rated impedance, and the other ends of the load are all electrically connected; the power interface is fixed on the seat frame and is electrically connected with the other end of the electric control switch and the other end of the load; the signal input end of the control module is connected with an electrical interface or a data interface of the electric control switch; when the device is used, the control module controls the electric control switch to be respectively and electrically connected with the 1 st channel, the 2 nd channel … and the nth channel according to the set deep discharge voltage value; a manual switch and a heat sink are preferably provided.

Description

Deep discharge equipment for repairing storage battery

Technical Field

The utility model relates to a battery professional equipment, in particular to battery restoration is with dark discharge apparatus.

Background

The storage battery is a lead-acid storage battery which is usually called as a short form and is a secondary battery with the largest use amount in the current market, has the advantages of wide material source, low price, safety, reliability, large capacity, high discharge intensity and the like, and occupies the mainstream position in the high-power/large-capacity fields of electric tractors, vehicle and ship starting, communication machine stations and the like.

The service life of the storage battery is shorter than that of a lithium ion battery, for example, the service life of storage battery manufacturers for electric bicycles is 15-18 months, and the annual waste amount exceeds 10 hundred million, so that the market terminals have the storage battery repair service; no matter what repair charging method is adopted, the storage battery needs to be subjected to corresponding deep discharge technical treatment before repair charging, and a large number of experience methods are accumulated in the industry by the basic repair process.

The technical significance of the deep discharge of the failed storage battery is that the energy lower than the normal working voltage interval is released, otherwise the repair effect is not ideal, but the adoption of the series discharge generally causes the discharge depths of the failed storage battery to be inconsistent, and when most batteries meet the deep discharge condition, the reverse polarity of some batteries is often caused, so that the actual operation expects the monomer discharge; however, the equipment cost of the constant current adopted by the monomer discharge is too high, and the ordinary rated impedance is adopted to lead the discharge efficiency to be too low, the utility model provides a contradiction for solving this practical application.

The method has the advantages that the repairing of the failed storage battery is deep discharged to the uniformly set depth before charging, a process foundation can be provided for the group serial charging of the storage battery repairing, and the industrial application of the storage battery repairing is facilitated.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a deep discharge equipment easy and simple to handle to battery restoration's market demand, can realize treating that the restoration battery deep discharge sets for the technical target of final voltage, especially effectively shortens the required time of deep discharge, promotes deep discharge process efficiency, and is with low costs, and the practicality is strong.

In order to achieve the above object, the present invention provides a deep discharge device for repairing a storage battery, which comprises a seat frame, a power interface, a control module, an electric control switch and at least two loads; the electric control switch is provided with at least two channels with logical AND, and the control end of the electric control switch is connected with the control module; each channel interface of the electric control switch is respectively and electrically connected with one end of the load; the load is rated impedance meeting the discharge power requirement, and the other end of the load is electrically connected with the other end of the load; the power interface is fixed on the seat frame and is electrically connected with the other end of the electric control switch and the other ends of all electrically connected loads; when the device is used, the power interface is electrically connected with two poles of an external storage battery through a power line, and the control module controls the electric control switch to be respectively and electrically connected with the 1 st channel, the 2 nd channel … and the nth channel according to the set voltage value of deep discharge. And n is a positive integer more than or equal to 3.

In the above technical solution, the signal input end of the control module is connected to the electrical interface of the electrical control switch. The design is that the control module obtains real-time voltage signals of an external storage battery by utilizing an electrical interface of the electric control switch.

As an improvement of the above technical solution, a signal input end of the control module is connected and fixed to a data interface of the seat frame; the data interface is independently arranged, or is arranged as a special interface with integrated appearance together with the power interface. The data interface is a special interface externally connected with a data line, and the voltage data is acquired by connecting the special data line with two pole terminals of the storage battery, so that the control precision can be effectively improved; the power interface and the data interface are set as special interfaces, which is beneficial to using an integrally designed power line and a data line.

As a further improvement of the above technical solution, the seat frame is provided with a manual switch, which is electrically connected in series with the other end of the electric control switch and the power interface. This design preferably helps to reduce mishandling in actual use.

As a further improvement of the above technical solution, the signal output terminal of the control module is connected to a status display fixed on the seat frame. The state display is used for displaying the real-time working state of the deep discharge equipment.

In the above technical solution, the deep discharge device includes a heat dissipation device; the heat dissipation device comprises an electric fan or/and a heat dissipation fin; the heat radiating fin is made of conventional aluminum alloy or other alloys, has any shape and is in thermal bonding connection with the load; the electric fan is fixed on the upper part or any side of the seat frame, and a power supply interface of the electric fan is electrically and fixedly connected with two ends of the load or other power supplies.

In the technical scheme of the heat dissipation device, the heat dissipation fins are thermally and fixedly connected with the seat frame made of the alloy material through the heat conduction pipes. The design preferably takes the mount made of an alloy material as a function-extending part of the heat sink.

In the technical scheme of the heat dissipation device, a special air duct for isolating the diffusion of the negative heat carrier is arranged between the load and the electric fan, and the cross section of the air duct is arbitrary. The special air duct can improve the heat dissipation effect of the heat dissipation device.

In the above technical solution, the loads are separately arranged on different mounts. The technology is preferably favorable for designing radiators with various technical schemes, and the influence of accumulated heat on other parts caused by load discharge is avoided.

The deep discharge equipment comprises an AC-DC adaptive power supply which is electrically connected with an external power grid and is configured for a control module, an electric control switch, a state display and an electric fan, or a battery is configured in a special environment without the external power grid; the storage battery structurally comprises a single storage battery module and a plurality of storage battery modules connected in series.

The utility model has the substantive characteristics that the load of the rated impedance is provided with at least two, the electric control switch is provided with at least two channels with logic AND, when the storage battery is deeply discharged, the control module controls the electric control switch to be respectively and electrically connected with the 1 st channel, the 2 nd channel … and the nth channel according to the set discharge voltage value; the design can ensure that the storage battery voltage is in a high-voltage interval to avoid overlarge discharge current, and can increase the discharge current of the storage battery step by step at the set discharge depth, thereby effectively improving the process efficiency of deep discharge of the storage battery and saving the deep discharge time.

Although different experts may interpret different residual energy when the storage battery is lower than the normal working voltage, the energy release is beneficial to the storage battery repair, and the method is not only suitable for a power storage battery and an energy storage battery which are used in a circulating system, but also suitable for a standby storage battery and a starting storage battery which are used in a floating charge system.

The utility model has the advantages that: the deep discharge process efficiency of the storage battery to be repaired can be effectively improved, a previous process foundation can be provided for the storage battery repairing and charging in series connection in groups, the storage battery repairing rate is improved, and the industrial application of the storage battery repairing is facilitated.

Drawings

FIG. 1 is a schematic diagram of the functional module and deep discharge logic relationship of the present invention;

FIG. 2 is a graph of a voltage swing experiment for deep discharge of a failed battery at a constant current;

FIG. 3 is a schematic diagram of the voltage variation trend of a battery discharging with a rated impedance load;

FIG. 4 is a schematic diagram showing the trend of current variation in a battery discharging at a rated impedance load;

FIG. 5 is a schematic diagram of an architecture for providing a dedicated data interface;

FIG. 6 is a schematic structural diagram of a two-in-one design of a power interface and a data interface;

fig. 7 is a schematic diagram of a structure with a manual switch added.

Reference symbols of the drawings

1. Seat frame 2, power interface 3, control module 4, electric control switch 5 and load

6. Data interface 7, manual switch 8, status display ╩ and circuit grounding end

Detailed Description

The technical solution of the present invention will be further described in detail with reference to the accompanying drawings and examples.

Fig. 1 is a schematic diagram of a structure of a functional module and deep discharge logic of the present invention, which includes a seat frame 1, a power interface 2, a control module 3, an electric control switch 4, a status display 8 and two loads 5; the electric control switch 4 is provided with two channels with logical AND, and the control end of the electric control switch is connected with the control module 3; the signal input end of the control module is connected with the electrical interface of the electric control switch, and the signal output end of the control module is connected with the state display 8; two channel interfaces of the electric control switch 4 are respectively and electrically connected with one ends of two loads 5; the load 5 is a rated impedance meeting the discharge power requirement, and the other end of the load is electrically connected; the power interface 2 is fixed on the seat frame 1 and is electrically connected with the other end of the electric control switch 4 and the other end of the load 5; the other end of the load 5 and the control module 3 are both connected to a circuit ground ╩, which is well known to those skilled in the art.

The deep discharge device illustrated in fig. 1 is designed for battery repair, and a signal input terminal of a shunt circuit built in the control module 3 provides real-time voltage data of the battery; when an external storage battery is deeply discharged, the power interface 2 is electrically connected with two poles of the storage battery through a power line, and the control module 3 controls the electric control switch 4 to be respectively and electrically connected with the 1 st channel and the 2 nd channel according to a set deep discharge voltage value; for example, when a 6-grid storage battery with 12V nominal voltage is set to be discharged, the power interface 2 is electrically connected with two poles of the storage battery through a power line to form a discharge loop, and when the real-time voltage of the storage battery is larger than or equal to 8V, the control module 3 controls one channel of the electric control switch 4 to be electrically connected with a load 5; when the discharge voltage of the storage battery is less than 8V, the control module 3 controls the two channels of the electric control switch 4 to be electrically connected with the two loads 5. The limit of the deep discharge termination voltage value for repairing the storage battery is less than or equal to 1.0V/cell, and the deep discharge termination voltage value is selected by a designer under the condition of limiting the termination voltage value, so that the lower the discharge depth is, the better the capacity repairing effect of the storage battery is.

The grounding terminal ╩ marked in fig. 1 is shared by the other end of the load 5 and the control module 3, and the real-time voltage data of the control module to the storage battery is obtained by comparing the voltage with the potential of the circuit grounding terminal, and the conventional circuit design is clear to those skilled in the art; the status display 8 is used to display the operating status of the device, for example by displaying the different operating statuses of the device in light colors, or by displaying the real-time voltage or the real-time operating status in a digital table.

The control module 3 is used for controlling the AND logic of the electric control switch 4, the types of the electric control switches which can realize the AND logic are more in the market, and the specific implementation needs to meet the design requirement of the maximum discharge current of the storage battery; the basic function of the control module is to realize the logic control of the electric control switch, the integrated product of the device is mature and is easy to purchase in the market, and the logic control function can be realized by programming according to the specification.

The deep discharge of said batteries is familiar to the person skilled in the art, and the behavior of the energy released by the deep discharge varies greatly depending on the failure state of the battery. FIG. 2 is a graph of a voltage variation experiment of a 6MDZ failed storage battery in a constant current deep discharge mode, and obviously indicates that relatively large energy is accumulated in a range of about 9V, and the voltage range of the platform energy is far lower than the lower limit of the normal working voltage by 10.5V, so that the significance of the normal working of the storage battery is lost; the deep discharge meaning of the failed storage battery is that the energy of the low-voltage platform is released in a deep discharge mode.

For the deep discharge of the storage battery, a high-end experimental instrument usually adopts constant current discharge, because the energy accumulation states of the failed storage battery in a range lower than the normal working voltage are different, the serial discharge inevitably has inconsistent discharge depths, when most batteries meet the deep discharge condition, the reverse polarity of some batteries is often caused to influence the capacity restoration, and therefore the actual operation hopes that the single body discharge; the utility model discloses a load is to adopt rated impedance, battery discharge current is directly proportional with discharge voltage, as shown in fig. 3, fig. 4, can know according to ohm's law when load 5 quota, voltage reduces one time, the electric current also reduces one time simultaneously, and deep discharge often hope the depth of discharge to reach < 1.0V/single check or even < 0.5V/single check, consequently set for increasing the load (reducing rated impedance) in certain voltage interval, be an optimal technical scheme, can effectively shorten deep discharge time, improve deep discharge efficiency.

The rated impedance is realized by adopting a resistor R with a fixed value and using any current load such as a wire-wound resistor, a ceramic resistor, an electric stove wire, a low-voltage bulb and the like which meet the requirements of impedance value and overload power; the resistance of the load is not limited, and the nominal operating voltage divided by the resistance of the nominal discharge current can be used as a design reference value, for example, 6DZM series products special for electric vehicles, the nominal operating voltage is 12V, and the nominal discharge time rate is 2h,2h rate discharge current is determined by 1/2 of the nominal capacity value (C/a), so that the 2h rate discharge current of a 20Ah storage battery is 10A, and the preferred load 5 is R =12V/10a =1.2 (ohm); for example, in a GFM backup series product with a standard discharge time rate of 10h, the nominal operating voltage is 2v, and the 10h discharge current is 1/10 of the nominal capacity (C/a), so that the 10h discharge current of a battery with a capacity of 500Ah is 50A, and it is preferable that the load 5 is R =2V/50a =0.04 (ohm), and so on. The design reference value of the rated impedance is not limited, but is recommended.

The recommended impedance value calculated by the transformation of the nominal voltage and the nominal current is the discharge of the full-charge storage battery, and if the deep discharge process selects conventional equipment to discharge the storage battery to be close to the lower limit of the working voltage of the nominal, the intensity of the deep discharge current is properly increased; the standby GFM series products with standard discharge rates of 10h and 20h can also select discharge designs with discharge rates of 5h and 3h, and the design aims to shorten the time required by deep discharge.

The deep discharge equipment can be designed in various optimization ways, the control module shown in the example of fig. 1 acquires real-time voltage data of the storage battery by comparing the real-time voltage data with the potential of a circuit grounding end, a data interface is preferably designed, as shown in fig. 5, the data interface 6 is fixed on the seat frame 1, and the internal part of the data interface is connected with a signal input interface of the control module 3; when the capacity and the discharge current of the storage battery are large, particularly the voltage drop caused by line loss is not negligible when a power line is long, a data interface can be preferably added by the design of accurate data, and the data interface is electrically connected with two poles of the storage battery through a data line.

In the specific design, the power interface 2 and the data interface 6 can also be preferably set as special interfaces with an integrated structure, as shown in fig. 6, the advantage of setting the special interfaces is obvious, and the power line and the data line can be separated from the host, thereby being convenient for transportation and electrically and fixedly connected when in use; it is also preferable that a manual switch is provided on the seat frame 1, and the manual switch 7 is electrically connected in series with the other end of the electric control switch 4 and the power interface 2, as shown in fig. 7, the manual switch 7 is provided to reduce the misoperation, and the operation rule of starting the manual switch after the external circuit connection check is performed without error should be strictly executed.

As a practical tool, especially when the capacity and discharge current of the storage battery are large, a heat dissipation device is preferably arranged to ensure that the accumulated heat of the load can be effectively dissipated; the design of the heat sink is well known to those skilled in the art, and for example, the material of the heat sink is usually made of conventional aluminum alloy or other alloy, and is thermally connected to the load, and the shape of the heat sink can be arbitrary, and the larger the specific surface area of the heat sink is, the more favorable the heat dissipation effect is.

For heat accumulation and dissipation of the radiating fins, the seat frame 1 made of the alloy material can also be regarded as a part of a radiating device, and the radiating fins are thermally and fixedly connected with the seat frame made of the alloy material through heat conduction pipes; the heat conducting pipe is a high-efficiency heat conducting device well known to those skilled in the art, and has a heat conducting effect superior to that of any known metal, and in a specific application, two ends of the heat conducting pipe are respectively and thermally connected with a heat radiating fin and a seat frame made of alloy material.

The electric fan is the most common heat dissipation device, and is designed to be fixed at the upper part or any side of a seat frame, and a power interface of the electric fan is electrically and fixedly connected with two ends of a load or other power supplies; the other power supplies include an external power supply and an AC-DC power supply configured exclusively with external AC power; preferably, a special air duct for isolating the negative heat carrier from diffusion is arranged between the load or the radiating fin and the electric fan, and the cross section of the air duct is arbitrary.

The utility model is characterized in that at least two loads 5 with rated impedance and an electric control switch 4 are arranged, at least two channels with logic of AND are provided, because the load is limited to be rated impedance and the discharging current is a natural descending process in direct proportion to voltage, when the storage battery is designed to discharge (corresponding to the period of normal working voltage), a control module 3 controls one channel of the electric control switch to be electrically connected with one load, which is equivalent to only one load 5; setting that when the discharge voltage of the storage battery is reduced to a set voltage value, the 2 nd channel of the electric control switch is controlled to be electrically connected, wherein the logic is that the electric control switch is electrically connected with two loads 5 in parallel, and the discharge current is multiplied at the moment; when the discharge voltage of the storage battery is reduced to a next set voltage value, the 3 rd channel of the electric control switch is controlled to be electrically connected, the electric control switch is electrically connected with 3 loads 5 with rated impedance in parallel, and the like is repeated until the storage battery is discharged to the termination voltage value selected by the designer.

The technical purpose of the deep discharge equipment is to discharge the storage battery to a set end voltage value, so that the storage battery to be repaired can be conveniently subjected to grouped serial charging classification, and the repair efficiency is improved.

The conventional process of repairing the storage battery before deep discharge is to supplement electrolyte to the storage battery, add repair liquid and match with a vacuumizing process for treatment, the charging process after deep discharge is familiar to the technical personnel in the field, and although different operators adopt repair additives with different components and the charging process is different, the charging process has the design characteristic of charging intensity in stages, and the corresponding charging process is designed according to the using effect of the repair additives.

The following examples are merely preferred, and several alternatives may be partially selected or combined and used with other well-established techniques.

Example 1

The deep discharge equipment of the special 6DZM20 storage battery for the electric bicycle is designed, the storage battery accounts for more than 80% of the market capacity of the current electric bicycle, and the 6DZM20 product accounts for more than 80% of the market capacity of the storage battery.

The deep discharge equipment comprises a seat frame 1, a power interface 2, a control module 3, an electric control switch 4, a state display 8 and two loads 5; the electric control switch 4 is provided with two channels with logical AND, and the control end of the electric control switch is connected with the control module 3; the signal input end of the control module is connected with the electrical interface of the electric control switch, and the signal output end of the control module is connected with the state display 8; two channel interfaces of the electric control switch 4 are respectively and electrically connected with one ends of two loads 5; the two loads adopt a special high-temperature-resistant ceramic resistor, the rated impedance is R =12V/10A =1.2 (ohm), and the other ends of the two loads are all electrically connected; the power interface is fixed on the seat frame and electrically connected with the other end of the electric control switch 4 and the other end of the load 5, as shown in figure 1.

The discharge rate of the 6DZM series storage battery is 2h, and the use characteristics are that outdoor discharge and cyclic charge and discharge are realized, most electric bicycles are charged outdoors, the failure reason of the storage battery is mainly caused by serious water loss or softening of positive active substances, and enough energy is usually accumulated in a deep discharge interval of 7-9V.

In the embodiment, when the 6DZM20 storage battery is deeply discharged, one end of a special power line is electrically and fixedly connected with the power interface 2, and the other end of the special power line is electrically and fixedly connected with two pole terminals of the storage battery to form a discharging loop; the state display 8 adopts lamp color, and the bright lamp indicates that the discharge work is in progress; when the real-time voltage of the storage battery is more than or equal to 8.0V, the control module controls one channel of the electric control switch 4 to be electrically connected with a load 5; when the real-time voltage of the storage battery is less than 8V, the control module controls the other channel of the electric control switch 4 to be electrically connected with the other load 5, the electrifying logic of the two channels of the electric control switch is AND, the deep discharge is stopped when the voltage reaches 4.0V, and the condition that the value of the stop voltage is not too low is avoided to avoid the occurrence of reverse polarity of 6 storage batteries.

The storage batteries can be arranged into the same series group for charging after deep discharge, so that the repairing and charging efficiency can be greatly improved; electrolyte is not supplemented before deep discharge, repair liquid is added, and the vacuum pumping process is matched for treatment, so that the repair liquid is required to be supplemented; no matter how the energy released by the deep discharge of the storage battery is interpreted by the person skilled in the art, the grouped serial charging is only beneficial to improving the storage battery repair efficiency, and the embodiment can be used as a practical tool for repairing the storage battery.

Example 2

In the embodiment 1, the data acquisition of the real-time voltage of the storage battery by the signal input end of the control module 3 is obtained by comparing the electric interface of the electric control switch 4 with the electric potential of the circuit grounding end; in this embodiment, a data interface 6 is added to the operation panel of the seat frame 1, and the signal input end of the control module 3 is connected to the data interface 6, as shown in fig. 5; the power interface 2 and the data interface 6 may also be further designed as a combination, and the power interface and the data interface are designed as a special interface with an integrated appearance, as shown in fig. 6.

The heat dissipation device comprising the electric fan and the heat dissipation fins can be additionally arranged in both the embodiment and the previous embodiment; the radiating fins are made of aluminum alloy, are shaped like a plurality of rows of sheets and are thermally and fixedly connected with the load 5; the electric fan is a nominal 12V direct current fan and is fixed on one side of the seat frame, and a power supply interface of the electric fan is electrically connected with two ends of the load 5.

Example 3

On the basis of the hardware logic structure and the control relationship of the embodiment 2, a deep discharge device special for a GFM500 standby battery is designed; the standard discharge rate of the GFM series standby storage battery is 10h, the nominal voltage of a monomer is 2.0V, and the 10h discharge current of the GFM500 is 1/10 of the nominal capacity value (C/A), namely 50A; and the nominal working voltage of the backup storage battery used on the site of the iron tower, the communication base station and the small and medium-sized data center is generally 48V, namely 24 monomers are used in series, and the time of standard discharge to 43.2V (1.8V multiplied by 24 monomers) is not less than 8 hours.

The design of this example is different from that of example 2 in three points: 1) The rated impedance of the two loads is designed to be R =2V/50a =0.04 (ohm); 2) The AND logic of the second channel interface of the electric control switch 4 is set to be 1.40V; 3) The voltage value for terminating the deep discharge was set to 0.80V.

When the deep discharge device of the embodiment is used for the specific operation on the site, the discharge inspection device usually equipped on the site is preferably used for discharging the whole group of storage batteries (generally set to be 43.2V or cut off after 8 hours of continuous discharge), then, the connection between the series battery pack units is disconnected, and each unit is discharged by the deep discharge device.

In this embodiment, when the real-time voltage of the cell is greater than or equal to 1.40V, the control module controls one channel of the electrically controlled switch 4 to be electrically connected to one load 5, and when the real-time voltage of the cell is less than 1.40V, the control module controls the other channel of the electrically controlled switch 4 to be electrically connected to the other load 5, and the logic of the two channels is and, and the deep discharge is terminated when the voltage reaches 0.80V.

After all the monomers of the embodiment are completely discharged deeply, the 24 monomer series battery packs are electrically connected again, and the series battery packs are charged by preferentially utilizing charging equipment usually equipped on site; because the field charging equipment is usually set to 53.52V (2.23V multiplied by 24) floating charging, when the whole group of storage batteries enters a floating charging state, the group of storage batteries are charged by a specially designed repairing charger, and the repairing effect is better.

Example 4

A manual switch is added on the basis of embodiment 3, the manual switch 7 is fixed on the operation panel of the seat frame 1, the other end of the electronic control switch 4 and the power interface 2 are electrically connected in series, and the power interface 2 and the data interface 6 are designed separately, as shown in fig. 7.

The manual switch is arranged, so that misoperation can be reduced, all external circuits are required to be checked to be correct before the manual switch is started, and particularly, the operation procedure of starting the manual switch after the external circuits are required to be strictly executed to be correct during field operation; meanwhile, discharge inspection equipment and charging equipment which are usually equipped on the iron tower, the communication base station and the small and medium-sized data center have strict industrial operation guide rules, and should be operated by professionals.

Example 5

On the basis of the embodiment 4, the discharge program is set to pause with the real-time voltage less than or equal to 1.80V, and the manual operation is restarted; specifically, it is well known in the industry that additives need to be added for repairing the storage battery, the permeability of common repair additives to active substances of the electrode plate is not strong, a vacuumizing process is needed for assistance, and the manual restart is set to be matched with the addition of special repair additives to the storage battery before the execution of a deep discharge program.

With the deep research on the storage battery repairing technology in recent years, some special repairing additives with strong permeability to the active substances of the polar plate, namely 10-nanometer spherical structures, appear in the industry, but the technical requirement of the advanced special repairing liquid is that the special repairing additives are added in an empty load state when the storage battery discharges to the lower limit of the standard working voltage, the special repairing additives can penetrate into the deep layer of the active substances of the polar plate by means of gravity and deep discharge, and the assistance of a vacuumizing process is avoided, so that the repairing agent is supported and added and the deep discharge process is combined into a whole, and the industrial repairing efficiency of the storage battery is improved.

When the special repairing additive is adopted, the discharge depth can be further optimized, and the discharge stopping voltage is set to 0.50V, so that the additive has a better penetrating effect on the deep layer of the active substance of the electrode plate.

Example 6

When the object of deep discharge is a very large capacity battery, for example, a 2000Ah battery, and is set to be discharged at a current of 500A, since the discharge current is large, the heat generation amount of the load 5 is considerable, it is preferable that the load 5 and the main unit accommodated in the seat frame 1 are separately designed, and a special seat frame made of an alloy material is provided for the load 5.

The embodiment is provided with a heat dissipation device comprising an electric fan and a heat dissipation fin; the heat radiating fins are made of aluminum alloy, are shaped like a plurality of rows of sheets and are fixedly connected with a negative heat carrier, and are thermally and fixedly connected with the special seat frame arranged for the load through heat pipes; the electric fan is fixed on the upper part of a seat frame specially designed for loads, a special air duct for isolating negative heat carrier diffusion is arranged between the electric fan and the loads, and the cross section of the air duct is circular; the power end of the electric fan is electrically connected with the power supply of an external power grid.

Claims (5)

1. The deep discharge equipment for repairing the storage battery is characterized by comprising a seat frame (1), a power interface (2), a control module (3), an electric control switch (4) and at least two loads (5); the electric control switch (4) is provided with at least two channels with logical AND, and the control end of the electric control switch is connected with the control module (3); each channel interface of the electric control switch (4) is respectively and electrically connected with one end of the load (5); the signal input end of the control module (3) is connected with the electrical interface of the electric control switch (4); the load (5) is rated impedance meeting the discharge power requirement, and the other end of the load is electrically connected with the other end of the load; the power supply interface (2) is fixed on the seat frame (1) and is electrically connected with the other end of the electric control switch (4) and the other ends of all electrically connected loads (5); when the device is used, the power interface (2) is electrically connected with two poles of an external storage battery through a power line, and the control module (3) controls the electric control switch (4) to be respectively and electrically connected with the 1 st channel, the 2 nd channel … and the nth channel according to a set deep discharge voltage value.

2. A deep discharge device according to claim 1, characterized in that the signal input of the control module (3) is connected to a data interface (6) fixed to the cradle (1); the data interface (6) is independently arranged or is arranged as a special interface with integrated appearance together with the power interface (2).

3. A deep discharge apparatus according to claim 1, characterized in that the cradle (1) is provided with a manual switch (7) which is electrically connected in series with the other end of the electrically controlled switch (4) and the power interface (2).

4. A deep discharge device according to claim 1, characterized in that the signal output of the control module (3) is connected to a status display (8) fixed to the holder (1).

5. The deep discharge device of claim 1 including a heat sink; the heat dissipation device comprises an electric fan or/and a heat dissipation fin; the heat radiating fins are made of conventional aluminum alloy or other alloys, have any shapes and are thermally and fixedly connected with the load (5); the electric fan is fixed on the upper part or any side of the seat frame (1), and a power supply interface of the electric fan is electrically and fixedly connected with two ends of the load (5) or other power supplies.

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