CN114928125A - High-low voltage switchable charging and discharging system for field charging and discharging - Google Patents

Abstract

The invention discloses a high and low voltage switchable charging and discharging system for charging and discharging in the field, belonging to the field of charging and discharging equipment. The four corners are fixedly connected to the shell cover by fixing bolts, and also includes: vibration buffer units, which are provided with four and are installed on the inner bottom of the shell; power storage units, including installation boxes, transverse shock absorber belts, longitudinal shock absorber belts, and battery protection Shell, battery and partition, the installation box is arranged on the top of the shock buffer unit, the inner and rear side of the installation box is divided into a front-side storage cavity and a rear-side charging cavity by the partition plate, and the storage cavity is provided with battery protection Shell; avoid the charging and discharging port contaminated with water short circuit in the field, ensure normal use, and have better buffer components for charging and discharging equipment in field activities to avoid damage to the internal battery, can output two voltages, good adaptability.

Description

A high and low voltage switchable charging and discharging system for field charging and discharging

technical field

The invention relates to the technical field of charging and discharging equipment, in particular to a high and low voltage switchable charging and discharging system for charging and discharging in the field.

Background technique

As an energy storage device, charging and discharging equipment is often used in field activities;

The existing charging and discharging equipment is equipped with a storage battery and a charging and discharging system, which is installed in an ordinary casing and can be used normally in a normal environment, but the safety of using it in a relatively harsh environment needs to be improved;

The charging and discharging ports of the existing charging and discharging equipment are easily contaminated with water and short-circuit in the field, which affects the use, and field activities are also prone to cause great vibration to the charging and discharging equipment, which is easy to damage the internal battery, and the charging and discharging equipment can only output A voltage with poor adaptability.

SUMMARY OF THE INVENTION

The purpose of the present invention is to solve the problem in the prior art that the charging and discharging ports are easily contaminated with water and short-circuit in the field, which affects the use, and the field activities are also prone to cause great vibration to the charging and discharging equipment, which is easy to damage the internal storage battery. , only one voltage can be output, and the problem of poor adaptability, and a high and low voltage switchable charging and discharging system for field charging and discharging is proposed.

In order to achieve the above object, the present invention adopts the following technical solutions:

A high and low voltage switchable charging and discharging system for charging and discharging in the field, comprising a mounting shell, the mounting shell includes a shell, a shell cover and fixing bolts, the four corners of the top opening of the shell are fixedly connected to the shell cover by the fixing bolts, and the include:

There are four vibration buffer units installed on the inner bottom of the casing;

The power storage unit includes an installation box, a lateral buffering belt, a longitudinal buffering belt, a battery protection case, a battery and a partition, the installation box is arranged on the top of the vibration buffering unit, and the inner and rear sides of the installation box pass through the partition It is divided into an electric storage cavity on the front side and a charging cavity on the rear side. The electric storage cavity is provided with a battery protection case. The lateral side of the battery protection case is respectively sleeved with a horizontal cushioning belt and a longitudinal cushioning belt. four batteries;

The air intake and heat dissipation unit is installed on the rear side of the right end of the casing and the rear side of the right end of the installation box, and the rectangular groove on the rear side of the left end of the casing is provided with an exhaust screen;

The discharge end assembly is installed on the front side of the casing;

The high and low voltage switching unit is installed at the bottom of the front side of the housing.

The mounting shell protects the internal equipment, and the vibration buffer unit can buffer the vibration of the mounting shell to prevent the mounting shell from being damaged by collision to the internal power storage unit. The installation box and the battery protection can be filled with the horizontal and vertical cushioning belts. The gap between the shells can reduce the shaking of the battery protection shell in the installation box. The four batteries can be connected in series to output high voltage. The air intake and heat dissipation unit can dissipate heat from the parts that are prone to heat in the charging chamber, avoiding the danger of heat accumulation. , The discharge end component is used to supply power to the required electrical equipment in the field, and the high and low voltage switching unit can be switched to two battery power supply or four battery power supply, so as to realize the switching output of high and low voltage.

Preferably, the mounting shell further includes a fixing frame and an arched rod, the top and bottom of the casing are respectively sleeved with a fixing frame, and the surrounding of the fixing frame is respectively provided with an arched rod.

The arched rod is fixed by the fixing frame. The arched rod can be easily held and taken. If the field equipment falls, the arched rod can protect the components around the equipment, so that the lateral parts will not be damaged by direct contact with the ground. It is suitable for field environments. .

Preferably, the shock buffer unit includes a support block, a movable rod, a sliding sleeve, a sliding rod and a buffer spring, two sliding sleeves are slidably connected to the sliding rod, and two sliding sleeves are movably connected to the upper and lower ends of each sliding sleeve. There are two movable rods, the two movable rods on the upper side are movably connected with a support block, and the two movable rods on the lower side are movably connected with another support block. The middle of the sliding rod is sleeved with a buffer spring, and the two ends of the buffer spring The two sliding sleeves are respectively connected, the lower support block is fixed on the inner bottom of the shell, and the upper support block is fixed at the bottom of the installation box.

When the casing is vibrated, the movable diamond structure formed by the four movable rods will move downwards under the pressure of the power storage unit. At this time, the two sliding sleeves move away from each other on the sliding rods. At this time, the buffer spring will be pulled. Pull back, the shock can be buffered until it disappears.

Preferably, the power storage unit further includes a battery anode, a first lead, a second lead and a third lead, the battery anode is provided on the left side of the battery and the battery cathode slot is arranged on the right side, the battery anode and the battery cathode slot of the four batteries Connected end to end, the battery anode of the left battery is connected to wire 3, the battery anode of the third battery from left to right is connected to wire 2, and the battery cathode slot of the right battery is connected to wire 1. The battery anode and the battery cathode slot are used to connect the cathode and anode of the battery in series, so as to superimpose the voltage, and two different voltages can be output through the first wire, the second wire and the third wire.

Preferably, the air intake and heat dissipation unit includes an air intake duct, a mounting piece, a cooling fan, a filter screen frame, a filter screen and an air inlet, and an air intake duct is provided on the rear side of the right end of the housing, and the air intake duct passes through the air inlet. A cooling fan is installed on the mounting piece, a filter screen is installed on the right end of the air inlet tube through a filter screen frame, and an air inlet corresponding to the air inlet tube is arranged on the rear side of the right end of the installation box, and the air inlet communicates with the right end of the charging cavity.

The air inlet duct is used as the installation carrier, and the mounting piece is installed with a cooling fan. The cooling fan can send air into the air inlet duct, and then enter the charging chamber through the air inlet to dissipate heat in the charging chamber. The filter screen can filter the outside air and prevent external dust and debris from entering the air intake duct.

Preferably, the discharge end assembly includes a discharge socket, a discharge plug board and a discharge protection assembly, the front side of the housing is provided with a discharge socket, the discharge socket is inlaid with a discharge plug board, and the discharge socket is installed with a protective discharge Discharge protection components of the plug-in board. The discharge socket is made of insulating material to avoid leakage of the discharge socket on the discharge socket. The charging socket on the discharge socket can be protected by the discharge protection component to prevent water or flying insects from entering the charging socket on the discharge socket in the wild environment. Causes a short circuit to affect the use.

Preferably, it also includes a charging end assembly and a charger, two chargers are arranged in the charging cavity, and a charging end assembly connected to the charger is arranged on the rear side of the housing. Two chargers are used, one is used as a spare part to improve reliability, and the charging end assembly can be connected to the commercial power to charge the battery through the charger before departure.

Preferably, the high and low voltage switching unit includes a switching installation box, a switching control assembly, a conduction assembly and an indicator assembly, and a switching installation box is arranged on the inner front side of the housing, and the switching control assembly and the indicator assembly are installed in the switching installation box. The conduction component is installed, and the indicator component is installed on the front side of the housing.

Preferably, the switching control assembly includes a sliding rail, a compression spring, a sliding block, a movable rod, a swing rod, a rotating shaft, a control hand wheel and a bearing, and a sliding rail is provided on the top of the switching installation box. A slider is vertically slidably connected in the groove, the bottom of the slider is movably connected to the top of the movable rod, and the bottom of the movable rod is movably connected to the top of the swing rod, the bottom of the swing rod is fixedly connected to the rear end of the rotating shaft, and the The middle part is rotatably connected with the front side of the housing through a bearing, and the front end of the rotating shaft is connected with a control hand wheel.

By manipulating the handwheel, the rotating shaft can be driven to rotate, thereby driving the swing rod to swing to the left, and the slider can be moved upward first in the rail groove of the slide rail against the elastic force of the compression spring through the movable rod. When the movable rod and the swing rod are all vertical, At this time, the compression spring is compressed to the limit, and when the pendulum rod continues to swing, the compression spring rebounds, pressing the pendulum rod to continue swinging to the left.

Preferably, the conduction assembly includes a ring rod, a conductive block, a contact 1, a contact 2, a contact 3, and a contact 4, and two ring rods are respectively provided on both sides of the middle of the pendulum rod, and the two ring rods The ends of the switch installation box are respectively connected with conductive blocks, the right side of the inner bottom of the switch installation box is provided with contacts 1 and 2 close to each other, and the left side of the inner bottom of the switch installation box is provided with contacts 3 and 4 close to each other.

Due to the rebound effect of the compression spring, the pendulum rod is pressed to swing to one side. At this time, the ring rod can drive the conductive block to conduct contact 1 and contact 2, or conduct contact 3 and contact 4 to realize circuit switching. .

Compared with the prior art, the present invention provides a high and low voltage switchable charging and discharging system for field charging and discharging, which has the following beneficial effects:

1. The high and low voltage switchable charging and discharging system used for charging and discharging in the field, the mounting shell protects the internal equipment, and the vibration buffer unit can buffer the vibration of the mounting shell to prevent the mounting shell from being damaged by collision to the internal power storage unit, The gap between the installation box and the battery protection case can be filled by the horizontal cushioning belt and the longitudinal cushioning belt, so as to reduce the shaking of the battery protection case in the installation box. It can dissipate heat from the parts that are prone to heat in the charging chamber to avoid the danger of heat accumulation;

2. The high and low voltage switchable charging and discharging system used for charging and discharging in the field. The discharge end component is used to supply power to the required electrical equipment in the field. The high and low voltage switching unit can be switched to two battery power supply or four battery power supply. Realize high and low voltage switching output;

3. The high and low voltage switchable charging and discharging system used for charging and discharging in the field can avoid the short circuit of the charging and discharging port contaminated with water in the field, and ensure normal use. In addition, it has better buffer components for the charging and discharging equipment in field activities to avoid damage to the interior. The battery can output two voltages and has good adaptability.

The parts not involved in the device are the same as the prior art or can be realized by adopting the prior art. The present invention is safe and reliable, and can be switched between high and low voltages.

Description of drawings

1 is a schematic structural diagram of a high and low voltage switchable charging and discharging system for field charging and discharging proposed by the present invention;

FIG. 2 is a schematic partial structure diagram of a high and low voltage switchable charging and discharging system for field charging and discharging proposed by the present invention;

3 is a schematic cross-sectional structure diagram of a high-low voltage switchable charging and discharging system for field charging and discharging proposed by the present invention;

4 is a schematic diagram of the internal structure of a high and low voltage switchable charging and discharging system for field charging and discharging proposed by the present invention;

5 is a schematic diagram of the internal structure of the installation box of a high-low voltage switchable charging and discharging system for field charging and discharging proposed by the present invention;

6 is a partial cross-sectional structural schematic diagram of a discharge end assembly of a high and low voltage switchable charging and discharging system for field charging and discharging proposed by the present invention;

7 is a schematic structural diagram of a high and low voltage switching unit of a high and low voltage switchable charging and discharging system for field charging and discharging proposed by the present invention;

8 is a schematic cross-sectional structural diagram of an air intake and heat dissipation unit of a high and low voltage switchable charging and discharging system for field charging and discharging proposed by the present invention.

In the picture: 1 air outlet, 2 installation shell, 21 shell, 22 shell cover, 23 fixing bolts, 24 fixing frame, 25 arched rod, 3 vibration buffer unit, 31 support block, 32 movable rod, 33 sliding sleeve, 34 Slide bar, 35 buffer spring, 36 limit nut, 4 power storage unit, 41 installation box, 42 horizontal cushioning belt, 43 longitudinal cushioning belt, 44 battery protective shell, 45 battery, 46 battery anode, 47 lead wire one, 48 Wire 2, 49 wire 3, 410 box cover, 411 rubber spacer, 412 partition plate, 5 air inlet cooling unit, 51 air inlet duct, 52 bracket, 53 installation sleeve, 54 cooling fan, 55 installation plate, 56 spoke rod, 57 Filter, 58 Inner Ring, 59 Protection Net, 510 Air Inlet, 6 Exhaust Screen, 7 Charging Terminal Assembly, 71 Insulation Base, 72 Charging Head, 73 Ring Slot, 74 Fixed Ring, 75 Connecting Rope, 76 Protective Cover , 77 inner snap ring, 8 discharge end components, 81 discharge seat, 82 discharge insert, 83 shaft, 84 arc plate, 85 protective cover, 86 groove, 87 connection spring, 88 snap ball, 9 high and low voltage switching unit , 91 switch installation box, 92 slide rail, 93 compression spring, 94 slider, 95 movable rod, 96 swing rod, 97 ring rod, 98 conductive block, 99 rotary shaft, 910 contact one, 911 contact two, 912 contact Point 3, 913 contact 4, 914 control handwheel, 915 bearing, 916 indicating arrow, 917 label, 10 side cushioning column, 11 charger, 12 temperature control switch.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, but not all of the embodiments.

Example:

Embodiment 1, referring to Figures 1-8, a high and low voltage switchable charging and discharging system for charging and discharging in the field, including a mounting shell 2, the mounting shell 2 includes a shell 21, a shell cover 22 and a fixing bolt 23, the shell The four corners of the top opening of 21 are fixedly connected to the shell cover 22 by fixing bolts 23, and also include:

The installation shell 2 also includes a fixed frame 24 and an arched rod 25 . The top and bottom of the housing 21 are respectively sleeved with the fixed frame 24 , and the surrounding of the fixed frame 24 is respectively provided with arched rods 25 .

The arched rod 25 is fixed by the fixing frame 24, and the arched rod 25 can be easily held and taken. If the equipment is toppled in the field, the arched rod 25 can protect the parts around the equipment, so that the lateral parts will not directly touch the ground and be damaged , suitable for outdoor environment.

The vibration buffer unit 3 is provided with four and installed on the inner bottom of the housing 21;

The vibration buffer unit 3 includes a support block 31, a movable rod 32, a sliding sleeve 33, a sliding rod 34 and a buffer spring 35. The sliding rod 34 is slidably connected with two sliding sleeves 33, and the upper and lower ends of each sliding sleeve 33 are respectively movably connected There are two movable rods 32, the two movable rods 32 on the upper side are movably connected with a support block 31, the two movable rods 32 on the lower side are movably connected with another support block 31, and the middle of the sliding rod 34 is sleeved with a The buffer spring 35 is connected to two sliding sleeves 33 at both ends.

The two ends of the sliding rod 34 are respectively connected with limit nuts 36 by screw threads, so as to prevent the sliding sleeve 33 from falling off the sliding rod 34 .

When the casing 21 is vibrated, the movable diamond structure formed by the four movable rods 32 will be moved downward by the pressure of the power storage unit 4. At this time, the two sliding sleeves 33 are separated from each other by the sliding rods 34, and the buffer spring 35 will be pulled at this time. , through the buffering and pulling back action of the buffer spring 35, the shock can be buffered until it disappears.

The power storage unit 4 includes an installation box 41 , a transverse cushioning belt 42 , a longitudinal cushioning belt 43 , a battery protective shell 44 , a battery 45 and a partition 412 . The installation box 41 is arranged on the top of the vibration buffering unit 3 , and the installation box 41 The inner and rear sides are separated into a front-side power storage cavity and a rear-side charging cavity by a partition 412. The power storage cavity 45 is provided with a battery protection shell 44, and the lateral buffering belts 42 and 44 are respectively sleeved on the side of the battery protection shell 44. The longitudinal buffer belt 43 and the battery protective shell 44 are provided with four batteries 45;

The sides of the installation box 41 are respectively provided with side cushioning columns 10, and the ends of the side cushioning columns 10 are pressed against the inner side of the casing 21 to improve the degree of cushioning;

The power storage unit 4 also includes a battery anode 46, a lead wire 47, a lead wire two 48 and a lead wire three 49. The battery anode 46 is provided on the left side of the battery 45 and the battery cathode slot is provided on the right side. The battery anodes 46 of the four batteries 45 are provided. Connect to the battery cathode slot end to end, the battery anode 46 of the left battery 45 is connected to the wire three 49, the battery anode 46 of the third battery 45 from left to right is connected to the wire two 48, and the battery cathode slot of the right battery 45 Connect wire one 47. The battery anode 46 and the battery cathode slot are used to connect the cathode and the anode of the battery 45 in series, so as to superimpose the voltage.

The top of the installation box 41 is provided with a box cover 410, and the gap between the box cover 410 and the shell cover 22 is provided with rubber pads 411 in an array, so that the box cover 410 and the shell cover 22 have a buffer, and the shell cover 22 and the rubber pad are used at the same time. The block 411 presses the box cover 410;

The air intake and heat dissipation unit 5 is installed on the rear side of the right end of the housing 21 and the rear side of the right end of the installation box 41, and an exhaust screen 6 is arranged in the rectangular groove on the rear side of the left end of the housing 21;

The air inlet and heat dissipation unit 5 includes an air inlet duct 51 , a mounting piece, a cooling fan 54 , a filter frame, a filter screen 57 and an air inlet 510 . The cooling fan 54 is installed through the mounting member, the filter screen 57 is installed on the right end of the air inlet duct 51 through the filter frame, and the rear side of the right end of the installation box 41 is provided with an air inlet 510 corresponding to the air inlet duct 51, and the air inlet 510 is connected to charging right end of the cavity.

The air inlet duct 51 is used as an installation carrier, and the mounting piece is installed with a cooling fan 54. The cooling fan 54 can send air into the air inlet duct 51, and then enter the charging cavity through the air inlet 510 to dissipate heat in the charging cavity. The filter frame is used for The filter screen 57 is installed, and the external air can be filtered through the filter screen 57 to prevent external dust and debris from entering the air inlet duct 51 .

The mounting piece includes a bracket 52 and an installation sleeve 53, the air inlet duct 51 is provided with a bracket 52, an installation sleeve 53 is installed on the bracket 52, and a cooling fan 54 is installed in the installation sleeve 53;

The filter screen rack includes a mounting plate 55 and a spoke rod 56. The side surface of the mounting disk 55 is provided with a spoke rod 56 at an equal angle. The spoke rod 56 is connected to the inner wall of the right end of the air inlet cylinder 51, and the right side of the filter screen rack is provided with a filter. The net 57, the filter screen 57 is sleeved on the outside of the right end of the air inlet cylinder 51;

The air inlet and heat dissipation unit 5 also includes an inner ring 58 and a protective net 59. A protective net 59 is installed on the left inner side of the air inlet duct 51 through the inner ring 58, and a layer of protective net 59 is added to prevent the sundries in the air inlet duct 51 from entering. into the housing 21;

The rear side of the left end of the installation box 41 is provided with an air outlet 1 that communicates with the charging chamber, and is used to take the air fed by the cooling fan 54 out of the charging chamber; heat dissipation;

A temperature control switch 12 is arranged in the charging chamber. The input end of the temperature control switch 12 is electrically connected to the battery, and the output end of the temperature control switch 12 is electrically connected to the input end of the cooling fan 54. The temperature control switch 12 controls the cooling fan 54 to work by using the existing technology.

The discharge end assembly 8 is installed on the front side of the housing 21;

The discharge end assembly 8 includes a discharge socket 81 , a discharge plug board 82 and a discharge protection assembly. The front side of the housing 21 is provided with a discharge socket 81 . The discharge socket 81 is embedded with a discharge plug board 82 , and the discharge socket 81 is installed with a protection The discharge protection assembly of the discharge board 82 . The discharge socket 81 is made of insulating material to prevent the discharge plug 82 on the discharge socket 81 from leaking electricity. The discharge protection component can protect the charging jack on the discharge plug 82 and prevent water or flying insects from entering the discharge plug 82 in the wild environment. A short circuit in the charging jack will affect the use.

The discharge protection assembly includes a rotating shaft 83, an arc-shaped plate 84, a protective cover 85, a groove 86, a connecting spring 87 and a snap ball 88. The rotating shaft 83 is fixed on both sides of the top of the discharge seat 81, and both ends of the arc-shaped plate 84 are respectively fixed. They are rotatably connected with the two rotating shafts 83 respectively. The bottom of the arc plate 84 is connected to the protective cover 85. The two sides of the bottom of the discharge seat 81 are respectively provided with grooves 86. The inner connecting sections of the protective cover 85 are respectively provided with blind grooves. The snap ball 88 is connected by the connecting spring 87. When the protective cover 85 covers the discharge seat 81 and the discharge board 82, the snap ball 88 is snapped corresponding to the groove 86, and the snap ball 88 is pressed by the connecting spring 87. into the groove 86, at this time the protective cover 85 and the arc-shaped plate 84 are fixed and will not rotate relative to the rotating shaft 83, so as to maintain the stability of the protection. The ball catch 88 is disengaged from the groove 86 to complete the opening of the protective cover 85 .

The high and low voltage switching unit 9 is installed on the bottom of the front side of the casing 21 .

The mounting shell 2 protects the internal equipment, and the vibration buffer unit 3 can buffer the vibration received by the mounting shell 2, so as to prevent the mounting shell 2 from being damaged by collision to the internal power storage unit 4. The gap between the installation box 41 and the battery protection case 44 can be filled to reduce the shaking of the battery protection case 44 in the installation box 41. The four batteries 45 can be connected in series to output high voltage. The parts that are easy to heat inside are dissipated for heat dissipation to avoid the danger of heat accumulation. The discharge end assembly 8 is used to supply power to the required electrical equipment in the field. High and low voltage switching output.

Embodiment 2, referring to FIGS. 1-5, a high and low voltage switchable charging and discharging system for charging and discharging in the field, this embodiment is a further description of Embodiment 1:

It also includes a charging end assembly 7 and a charger 11 , two chargers 11 are arranged in the charging cavity, and a charging end assembly 7 connected to the charger 11 is arranged on the rear side of the housing 21 . Two chargers 11 are used, one is used as a spare part to improve reliability, and the charging end assembly 7 can be connected to the commercial power to charge the battery through the charger 11 before departure.

The charging end assembly 7 includes an insulating seat 71 , a charging head 72 , an annular groove 73 , a fixing ring 74 , a connecting rope 75 , a protective sleeve 76 and an inner snap ring 77 . The rear side of the housing 21 is provided with an insulating seat 71 , and the insulating seat 71 The charging head 72 is connected to the top, and the outer side between the insulating base 71 and the charging head 72 is provided with an annular groove 73, and the rear side of the housing 21 is also provided with a fixing ring 74. The fixing ring 74 is connected to one end of the connecting rope 75, and the connecting rope 75 The other end is connected to a protective cover 76 made of rubber material. The inner end of the protective cover 76 is provided with an inner snap ring 77. When the charging head 72 is not in use, the protective cover 76 can be sleeved on the charging head 72 to protect the charging head 72. At this time, the inner snap ring 77 is snapped into the annular groove 73, so that the protective cover 76 is stably connected to the charging head 72, and the protective cover 76 can be removed from the charging head 72 when the charging head 72 is used.

The cable in the charging head 72 is electrically connected to the input end of the charger 11, and the output end of the charger 11 is electrically connected to the battery, and the electrical connection method adopts the prior art.

Embodiment 3, referring to FIGS. 1 and 7, a high and low voltage switchable charging and discharging system for charging and discharging in the field, this embodiment is a further description of the second embodiment:

The high and low voltage switching unit 9 includes a switching installation box 91, a switching control assembly, a conduction assembly and an indicating assembly. A switching installation box 91 is provided on the inner front side of the housing 21, and the switching installation box 91 is installed with a switching control assembly and a conduction assembly. components, and an indicator component is installed on the front side of the housing 21 .

The switching control assembly includes a sliding rail 92, a compression spring 93, a sliding block 94, a movable rod 95, a swing rod 96, a rotating shaft 99, a control hand wheel 914 and a bearing 915. The top of the switching installation box 91 is provided with a sliding rail 92, and the sliding A slider 94 is vertically slidably connected in the rail groove of the rail 92, the bottom of the slider 94 is movably connected to the top of the movable rod 95, and the bottom of the movable rod 95 is movably connected to the top of the swing rod 96, and the bottom of the swing rod 96 is fixedly connected to the rotating rod. The rear end of the shaft 99 , the middle of the rotary shaft 99 is rotatably connected to the front side of the housing 21 through a bearing 915 , and the front end of the rotary shaft 99 is connected to a manipulation hand wheel 914 .

By manipulating the handwheel 914, the rotary shaft 99 can be driven to rotate, thereby driving the pendulum rod 96 to swing to the left, and the slider 94 can move upward in the rail groove of the slide rail 92 against the elastic force of the compression spring 93 through the movable rod 95. 95 and the pendulum rod 96 are both vertical, at this time the compression spring 93 is compressed to the limit, when the pendulum rod 96 continues to swing, the compression spring 93 rebounds, pressing the pendulum rod 96 to continue swinging to the left.

The conduction assembly includes an annular rod 97, a conductive block 98, a contact one 910, a contact two 911, a contact three 912, and a contact four 913. There are annular rods 97 on both sides of the middle of the pendulum rod 96. The ends of the rods 97 are respectively connected with conductive blocks 98 , the right side of the inner bottom of the switching installation box 91 is provided with a contact 1 910 and a contact 2 911 that are close to each other, and the left side of the inner bottom of the switching installation box 91 is provided with contacts that are close to each other Three 912 and four 913 contacts.

Due to the rebound effect of the compression spring 93, the pressing lever 96 swings to one side. At this time, the ring lever 97 can drive the conductive block 98 to conduct the contact 1 910 and the contact 2 911, or conduct the contact 3 912 and the contact 911. Point 4 913, realize the switching of the circuit.

The conductive parts in the cathode jacks in the discharge plug board 82 are connected to the first wire 47, the wire two 48 is connected to the contact two 911, the wire three 49 is connected to the contact four 913, and the conductive parts in the anode plug holes of the discharge plug board 82 pass through respectively. Conductive wire connects contact one 910 and contact three 912;

When the swing lever 96 swings to the right, the conductive block 98 conducts the contact one 910 and the second contact 911, and the discharge board 82 outputs a low voltage at this time. When the swing lever 96 swings to the left, the conductive block 98 conducts the contact three. 912 and contact four 913, at this time the discharge board 82 outputs high voltage.

The indicating component includes an indicating arrow 916 and a label 917 , an indicating arrow 916 is arranged on the manipulation hand wheel 914 , and labels 917 are respectively provided on the front side of the housing 21 corresponding to the upper and left sides of the manipulation hand wheel 914 . High voltage and low voltage can be written respectively. When the handwheel 914 is rotated to switch the voltage, the indicating arrow 916 also points to the corresponding label 917 for indicating function.

The above description is only a preferred embodiment of the present invention, but the protection scope of the present invention is not limited to this. The equivalent replacement or change of the inventive concept thereof shall be included within the protection scope of the present invention.

Claims (10)

1. A high and low voltage switchable charging and discharging system for charging and discharging in the field, comprising a mounting shell (2), the mounting shell (2) comprising a shell (21), a shell cover (22) and a fixing bolt (23), The four corners of the top opening of the casing (21) are fixedly connected to the casing cover (22) by means of fixing bolts (23), and are characterized in that, further comprising: four vibration buffer units (3) are provided and installed on the inner bottom of the casing (21); The power storage unit (4) includes an installation box (41), a lateral cushioning belt (42), a longitudinal cushioning belt (43), a battery protection case (44), a storage battery (45) and a partition plate (412), so The installation box (41) is arranged on the top of the vibration buffer unit (3), and the inner and rear sides of the installation box (41) are separated into a front-side power storage cavity and a rear-side charging cavity by a partition (412), and the power storage A battery protective shell (44) is arranged in the cavity (45), and a lateral buffering belt (42) and a longitudinal buffering belt (43) are respectively sleeved on the side of the battery protective casing (44). There are four accumulators (45); The air intake and heat dissipation unit (5) is installed on the right rear side of the housing (21) and the right rear side of the installation box (41), and an exhaust screen is provided in the rectangular groove on the left rear side of the housing (21). (6); a discharge end assembly (8), mounted on the front side of the casing (21); The high and low voltage switching unit (9) is installed on the bottom of the front side of the casing (21). 2. A high and low voltage switchable charging and discharging system for field charging and discharging according to claim 1, characterized in that, the mounting shell (2) further comprises a fixing frame (24) and an arched rod (25) ), the top and bottom of the casing (21) are respectively sleeved with a fixing frame (24), and the surrounding of the fixing frame (24) is respectively provided with arched rods (25). 3. A high and low voltage switchable charging and discharging system for field charging and discharging according to claim 1, wherein the shock buffer unit (3) comprises a support block (31), a movable rod (32) , a sliding sleeve (33), a sliding rod (34) and a buffer spring (35), the sliding rod (34) is slidably connected with two sliding sleeves (33), and the upper and lower ends of each sliding sleeve (33) are respectively movable Two movable rods (32) are connected, the two movable rods (32) on the upper side are movably connected with a support block (31), and the two movable rods (32) on the lower side are both movably connected with another support block (31) The middle part of the sliding rod (34) is sleeved with a buffer spring (35), the two ends of the buffer spring (35) are respectively connected with two sliding sleeves (33), and the lower support block (31) is fixed on the casing ( 21), and the support block (31) on the upper side is fixed on the bottom of the installation box (41). 4. A high and low voltage switchable charging and discharging system for charging and discharging in the field according to claim 1, wherein the power storage unit (4) further comprises a battery anode (46), a lead wire (47) ), lead two (48) and lead three (49), the left side of the battery (45) is provided with a battery anode (46) and the right side is provided with a battery cathode slot, the battery anodes (46) of the four batteries (45) and The battery cathode slots are connected end-to-end, the battery anode (46) of the left battery (45) is connected to wire three (49), and the battery anode (46) of the third battery (45) from left to right is connected to wire two (48) , and the battery cathode slot of the right battery (45) is connected to the lead wire one (47). 5. A high and low voltage switchable charging and discharging system for charging and discharging in the field according to claim 1, wherein the air intake and heat dissipation unit (5) comprises an air intake duct (51), a mounting member, A cooling fan (54), a filter screen frame, a filter screen (57) and an air inlet (510), an air inlet duct (51) is provided on the rear side of the right end of the housing (21), and the air inlet duct (51) passes through the A cooling fan (54) is installed on the mounting part, a filter screen (57) is installed on the right end of the air inlet duct (51) through a filter screen frame, and the rear side of the right end of the installation box (41) is provided with an air inlet duct (51) A corresponding air inlet (510), the air inlet (510) communicates with the right end of the charging chamber. 6. The high and low voltage switchable charging and discharging system for field charging and discharging according to claim 1, wherein the discharge end assembly (8) comprises a discharge seat (81), a discharge plug board (82) ) and a discharge protection assembly, a discharge seat (81) is arranged on the front side of the casing (21), a discharge plug board (82) is embedded in the discharge seat (81), and a protective discharge plate (82) is installed on the discharge seat (81). Discharge protection assembly for plug board (82). 7. A high and low voltage switchable charging and discharging system for field charging and discharging according to claim 1, characterized in that, further comprising a charging end assembly (7) and a charger (11), and two charging chambers are provided in the charging chamber. A charger (11) is provided, and a charging end assembly (7) connected to the charger (11) is arranged on the rear side of the casing (21). 8. A high and low voltage switchable charging and discharging system for field charging and discharging according to claim 4, wherein the high and low voltage switching unit (9) comprises a switching installation box (91), a switching control assembly , conduction assembly and indication assembly, the inner front side of the casing (21) is provided with a switch installation box (91), the switch installation box (91) is installed with the switch control assembly and the conduction assembly, and the casing (21) ) is equipped with an indicator assembly on the front side. 9 . The high and low voltage switchable charging and discharging system for field charging and discharging according to claim 8 , wherein the switching control assembly comprises a slide rail (92), a compression spring (93), a slider (94), a movable rod (95), a swing rod (96), a rotating shaft (99), a control handwheel (914) and a bearing (915). ), a slider (94) is slidably connected vertically in the rail groove of the slide rail (92), the bottom of the slider (94) is movably connected to the top of the movable rod (95), and the bottom of the movable rod (95) is movably connected to the pendulum The top of the rod (96), the bottom of the swing rod (96) is fixedly connected to the rear end of the rotary shaft (99), and the middle of the rotary shaft (99) is rotatably connected to the front side of the housing (21) through a bearing (915) , and the front end of the rotating shaft (99) is connected to the control handwheel (914). 10. A high-low voltage switchable charging and discharging system for charging and discharging in the field according to claim 9, wherein the conducting component comprises a ring-shaped rod (97), a conductive block (98), a contact One (910), contact two (911), contact three (912), and contact four (913), the swing rod (96) is provided with annular rods (97) on both sides of the middle, and two annular rods The ends of (97) are respectively connected with conductive blocks (98), and the right side of the inner bottom of the switching installation box (91) is provided with a contact one (910) and a contact two (911) that are close to each other, and the switching installation box (91) The left side of the inner bottom is provided with contact three (912) and contact four (913) which are close to each other.

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