CN214314609U - Portable multifunctional mobile power supply - Google Patents

Abstract

The utility model discloses a portable multifunctional mobile power supply, which comprises a mobile power supply and a protective shell, wherein the mobile power supply is arranged inside the protective shell, the protective shell comprises a shell body and a shell cover, the shell body is hinged with the rear end of the shell cover, the upper end edge of the shell body is provided with a stretching ring groove, the bottom of the stretching ring groove is provided with an arc groove, the lower end edge of the shell cover is provided with a stretching convex ring, the lower end of the stretching convex ring is provided with a holding groove, the side wall of the holding groove is connected with an elastic sealing film, one side wall of the shell cover is provided with a push block groove, the inner part of the push block groove is movably provided with a push block, the mobile power supply in the utility model can obtain sufficient protection in the storage or transportation process, the closed space reduces the external humid air to directly contact with the mobile power supply, and can also prevent the external collision from causing damage to the mobile power supply in the transportation and storage process, thereby increasing the life of portable power source.

Description

Portable multifunctional mobile power supply

Technical Field

The utility model relates to a portable power source technical field especially relates to a portable multi-functional portable power source.

Background

In order to avoid the condition that the circuit breaker is misoperation caused by the fact that the reconstruction and extension interval is subjected to alternating and serial connection in the debugging process due to mistaken overlapping, mistaken wiring and the like, according to the regulation requirements, in the reconstruction, extension and acceptance process, the power consumption of the secondary equipment is supplied by the test power supply screen, and the secondary equipment cannot be in electrical contact with the running equipment before acceptance is completed.

Under the requirement of the existing regulation, the newly-expanded secondary equipment device gets electricity from a cell test power supply screen to debugging equipment through a cable trench, a plurality of pieces of equipment are connected in parallel to receive electricity, and the electricity is got through cabling in the whole process. Therefore, the debugging equipment is electrically isolated from the running equipment, and the running interval fault caused by the fact that alternating current is connected into a running direct current bus in series in the debugging process is effectively avoided.

The current mode of getting the electricity from experimental power screen cabling consumes a large amount of manpowers and time resource, and operating procedure is loaded down with trivial details, and the access of interim cable simultaneously leaks electricity easily and causes the harm to the person and equipment, and interim cable generally can't the secondary use after using, has caused very big waste.

Most of the existing portable multifunctional mobile power supplies are composed of a charging module and a storage battery module. However, the portable power source is easily damaged and the service life of the portable power source is affected due to the adverse effects of external factors such as humid air and the like during the transportation and storage processes.

SUMMERY OF THE UTILITY MODEL

The embodiment of the utility model provides a portable multi-functional portable power source to solve prior art and consume manpower, resource, the security is poor, portable power source problem of damaging easily.

The embodiment of the utility model discloses following technical scheme:

a portable multifunctional mobile power supply comprises a mobile power supply and a protective shell, wherein the mobile power supply is arranged inside the protective shell, the protective shell comprises a shell body and a shell cover, the shell body is hinged with the rear end of the shell cover, an extending ring groove is formed in the edge of the upper end of the shell body, an arc-shaped groove is formed in the groove bottom of the extending ring groove, an extending convex ring is arranged at the edge of the lower end of the shell cover, an accommodating groove is formed in the lower end of the extending convex ring, an elastic sealing film is connected onto the side wall of the accommodating groove, a push block groove is formed in the front side wall of the shell cover, a push block is movably arranged inside the push block groove, a piston cavity is uniformly formed in the groove bottom of the push block groove, a piston is movably arranged inside the piston cavity, one end of the piston is connected with one end of a push rod, and the other end of the push rod is fixedly connected with the push block, the outer wall fixed mounting of push rod has the fly leaf, the outside of push rod just is located the fly leaf with the cover is established between the piston and is installed the fixed plate, just the fixed plate with the inside wall in piston chamber is fixed to be linked to each other, the outside of push rod just is located the fly leaf with the cover is equipped with piston reset spring between the fixed plate, the one end in piston chamber is connected with the air duct, the other end of air duct all with the holding tank is connected, the preceding lateral wall of cap is equipped with the restriction the ejector pad locking Assembly of ejector pad activity, the preceding lateral wall of cap is equipped with sub-hasp subassembly, the preceding lateral wall of casing with the position that sub-hasp subassembly matches is equipped with female hasp subassembly.

Further: the push block locking assembly comprises a knob fixing shaft, one end of the knob fixing shaft is fixedly mounted on the front side wall of the shell cover and located on one side of the push block groove, the other end of the knob fixing shaft is rotatably mounted with a knob, and the push block passing groove is formed in the knob.

Further: the outer side wall of the knob is provided with anti-skid grains.

Further: the sub-lock catch assembly comprises a sub-concave frame, the inner side wall of the sub-concave frame is provided with a fixed shaft, the outer rotating sleeve of the fixed shaft is provided with a locking piece, the outer side wall sleeve of the fixed shaft is provided with a torsional spring, one end of the torsional spring is fixedly connected with the inner side wall of the sub-concave frame, the other end of the torsional spring is fixedly connected with the locking piece, the female lock catch assembly comprises a female concave frame, the inner side wall of the female concave frame is provided with a sliding rod, the outer movable sleeve of the sliding rod is provided with an L-shaped sliding plate, the outer sleeve of the sliding rod is provided with a sliding plate reset spring, one end of the sliding plate reset spring is fixedly connected with the inner side wall of the female concave frame, and the other end of the sliding plate reset spring is fixedly connected with the L-shaped sliding plate.

Further: the front surface of the L-shaped sliding plate is provided with anti-skid lines.

Further: the front side wall of the shell is provided with a handle.

Further: the portable multifunctional mobile power supply further comprises: the power supply comprises an energy storage power supply, a standby power supply, a control circuit, a communication circuit, a bidirectional DC-D circuit, a current limiting circuit and a large current switch; the two ends of the bidirectional DC-DC circuit are respectively connected with the energy storage power supply and the standby power supply, the two ends of the current limiting circuit are connected in parallel with the two ends of the bidirectional DC-DC circuit, the current limiting circuit comprises a current limiting resistor and a current limiting switch which are sequentially connected in series, the high-current switch is connected in parallel with the two ends of the bidirectional DC-DC circuit, the two ends of the control circuit are respectively connected with the energy storage power supply and the standby power supply, and the two ends of the communication circuit are respectively connected with the energy storage power supply and the standby power supply.

Further, portable multi-functional portable power source still includes the module of charging, the module of charging with control circuit electric connection.

The embodiment of the utility model provides a beneficial effect as follows:

1. the mobile power supply in the transportation and storage process can be protected by the matching arrangement of the shell and the shell cover, the effect of sealing the contact part of the shell cover and the shell cover when the shell cover is buckled on the shell can be achieved by the matching arrangement of the stretching ring groove, the arc groove, the stretching convex ring, the containing groove and the elastic sealing membrane, the content of air between the elastic sealing membrane and the containing groove can be controlled by the matching arrangement of the push block, the piston cavity, the piston, the push rod, the movable plate, the fixing plate, the piston reset spring and the air duct, and further the elastic sealing membrane is controlled to be in the stretching or shrinking state, the position of the push block can be fixed by the matching arrangement of the knob fixing shaft, the knob and the push block through the groove, and the shell cover and the shell can be locked by the matching arrangement of the sub concave frame, the fixing shaft, the locking piece, the torsional spring, the female concave frame, the slide rod, the L-shaped slide plate and the slide plate reset spring, the mobile power supply in the utility model can obtain sufficient protection in the storage or transportation process, the closed space reduces that external humid air directly contacts with portable power source, still can prevent that the external world from colliding with and causing the damage to portable power source in the transportation storage process, and then increase portable power source's life.

2. In the aspect of safety benefit, after the portable multifunctional mobile power supply is used for supplying power to the checking and accepting equipment, the checking and accepting equipment is not in electrical contact with the operating equipment, misoperation of a circuit breaker caused by the fact that alternating current is connected into a direct current control loop in series due to mistaken overlapping, mistaken wiring and the like is avoided, malignant power grid events are avoided, and therefore safe and stable operation of a power grid is guaranteed. Meanwhile, a balance bridge circuit is connected in series in the output loop of the direct current module, and the condition that direct current grounding and the like exist in the loop can be monitored under the condition that the power grid with no equal status serves as a reference.

3. In the aspect of time benefit, the original electricity taking time is shortened to be within 5 minutes from 131 minutes on average, the field operation efficiency is greatly improved, and a time margin is reserved for work with time uncertainty factors such as signal checking in the later period of operation. Selecting a secondary equipment screen for testing, testing strictly according to the on-site requirement process, pushing the trolley to the position near a test screen cabinet, starting the portable multifunctional mobile power supply, measuring the potential of an output power supply by using a universal meter, measuring the voltage of a direct current terminal of the test screen cabinet, performing test line access after confirming the operation safety, measuring the voltage of the direct current terminal strip after access, and performing device electrification. And selecting 5 transformer substation power-taking data in the previous current situation investigation to carry out actual verification in a practical training room. The selected 5 groups of test screen cabinets can be normally started to operate after being output by the portable multifunctional mobile power supply, compared with the prior test electricity taking of debugging equipment, the electricity taking time and the consumption of manpower and material resources reach target values, the average consumed time is 4.69mins, and only one person needs to operate (without a special custodian).

4. In the aspect of functional benefit, various different functions can be provided, compared with a conventional lead storage battery power supply, the portable lead storage battery power supply is more portable, firstly, power supply output of different voltage levels is provided, and the use of power equipment with different performance parameters can be met; the capacity expansion is carried out without increasing the battery pack under the condition of the same weight by a mode of parallel capacity expansion of the battery pack; when electric energy output is carried out, the portable multifunctional mobile power supply is connected into the balance bridge loop in series in output, the functions of direct current loop grounding alarm and storage battery internal fault alarm of the debugging device can be realized by adjusting the series connection position of the balance bridge, and the hidden danger that equipment operation is influenced by grounding cannot be identified is avoided under the condition that a grounding grid reference does not exist.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required to be used in the description of the embodiments of the present invention will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive labor.

Fig. 1 is a schematic view of the structure of the present invention;

fig. 2 is a schematic top view of the present invention;

FIG. 3 is a schematic sectional view taken along the line A-A in FIG. 1;

FIG. 4 is a schematic cross-sectional view taken along plane B-B of FIG. 1;

FIG. 5 is an enlarged view of the portion C of FIG. 1;

FIG. 6 is an enlarged view of section D of FIG. 3;

FIG. 7 is a schematic view of the structure of the present invention as seen from the bottom;

fig. 8 is a block diagram of the mobile power supply of the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, not all, of the embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1 to 8, the utility model discloses a portable multifunctional mobile power supply, which comprises a mobile power supply and a protective shell. The portable power source sets up in the inside of protecting crust. The shield case includes a case body 21 and a case cover 22. The shell 21 is hinged with the back end of the shell cover 22. The upper end edge of the shell 21 is provided with an inserting ring groove 23. The bottom of the groove extending into the ring groove 23 is provided with an arc-shaped groove 24. The lower end edge of the cover 22 is provided with a projecting ring 25. The lower end of the protruding ring 25 is provided with a holding groove 26. An elastic sealing film 27 is attached to the side wall of the receiving groove 26. The elastic sealing film 27 is deformed when the air content in the accommodation groove 26 is changed. A push block groove 28 is formed on one side wall of the housing cover 22. A push block 29 is movably arranged in the push block groove 28. Piston cavities 210 are uniformly arranged at the bottom of the push block groove 28. A piston 211 is movably installed inside the piston chamber 210. The plunger 211 is movable to change positions within the plunger cavity 210. One end of the piston 211 is connected to one end of a push rod 212. The other end of the push rod 212 is fixedly connected with the push block 29. The push rod 212 can move the piston 211 to change position in the piston chamber 210. The outer wall of the push rod 212 is fixedly provided with a movable plate 213. A fixed plate 214 is sleeved outside the push rod 212 and located between the movable plate 213 and the piston 211, and the fixed plate 214 is fixedly connected to the inner sidewall of the piston cavity 210. A piston return spring 215 is sleeved outside the push rod 212 and between the movable plate 213 and the fixed plate 214. The elastic force of the piston return spring 215 acts on the movable plate 213 and the fixed plate 214, and the movable plate 213, the push rod 212 and the piston 211 have a tendency to move toward the push block groove 28 due to the elastic force of the piston return spring 215 as the position of the fixed plate 214 in the piston chamber 210 is maintained. An air passage 216 is connected to one end of the piston chamber 210. The other end of the air passage 216 is connected to the receiving groove 26, and the air passage 216 can transfer air between the piston chamber 210 and the receiving groove 26. The front side wall of the housing cover 22 is provided with a push block locking assembly which limits the movement of the push block 29. The pusher lock assembly may lock the position of the pusher 29. The front side wall of the housing cover 22 is provided with a sub-latch assembly. The front side wall of the housing 21 is provided with a female latch assembly at a position matching the male latch assembly. When the cover 22 needs to be opened, the push block locking assembly is operated to lose the locking effect on the push block 29, the piston 211 moves towards the push block groove 28 under the action of the elastic force of the piston return spring 215, the air in the accommodating groove 26 is sucked into the piston cavity 210 by the movement of the piston 211, the elastic sealing membrane 27 loses the extrusion deformation of the air and is accommodated in the accommodating groove 26, the sub-lock block assembly and the female lock block assembly are opened, the cover 22 can be opened, when the cover 22 needs to be locked, the cover 22 is buckled on the housing 1, the sub-lock block assembly and the female lock block assembly are operated to lock the housing 1 and the cover 22, the push block 29 is pushed towards the inside of the push block groove 28, the piston 211 is driven to move in the piston cavity 210 by overcoming the elastic force of the piston return spring 215, and the air in the piston cavity 210 is conveyed into the accommodating groove 26 through the air passage 216 by the movement of the piston 211, make elasticity seal membrane 27 take place deformation after filling the air in holding tank 26 and stretch out holding tank 26 to fill in arc wall 24, seal the contact of casing 21 with cap 22, operate ejector pad locking Assembly again with ejector pad 29 the position fixed can, sealed space protects the power, increases portable power source's life.

Specifically, the pusher lock assembly includes a knob securing shaft 2171. One end of the knob fixing shaft 2171 is fixedly installed at a front sidewall of the case cover 22 and positioned at one side of the push block groove 28. A knob 2172 is rotatably mounted on the other end of the knob fixing shaft 2171. Knob 2172 has a push block passing slot 2173 formed therein. The knob 2172 is rotatable on a knob fixation shaft 2171 and the inner side wall of the knob 2172 has a snap ring groove. The outer side wall of the knob retaining shaft 2171 has a collar that snaps into a collar groove to disable the knob 2172 from being displaced axially of the knob retaining shaft 2171. When the push block is engaged with the push block 29 through the slot 2173, the push block 29 can be withdrawn within the push block slot 28.

Specifically, the outer sidewall of the knob 2172 is provided with anti-slip threads that prevent slippage when twisting the knob 2172.

Specifically, the sub-locking assembly includes a sub-concave frame 2181, and a fixing shaft 2182 is disposed on an inner sidewall of the sub-concave frame 2181. A locking tab 2183 is rotatably sleeved on the outside of the fixed shaft 2182. The outer side wall of the fixed shaft 2182 is sleeved with a torsion spring 2184. One end of the torsion spring 2184 is fixedly connected with the inner sidewall of the sub-concave frame 2181. The other end of the torsion spring 2184 is fixedly connected with the locking piece 2183. The female latch assembly includes a female frame 2191. The inner side wall of the female concave frame 2191 is provided with a slide bar 2192. An L-shaped sliding plate 2193 is movably sleeved outside the sliding rod 2192. A slide plate return spring 2194 is sleeved outside the slide bar 2192. One end of the slide plate return spring 2194 is fixedly connected to the inner sidewall of the female frame 2191. The other end of the slide plate return spring 2194 is fixedly connected to the L-shaped slide plate 2193. The locking piece 2183 can be opened or closed around the fixed shaft 2182. The locking piece 2183 is in an opened state by the elastic force of the torsion spring 2184. The L-shaped slide plate 2193 can change position when the slide bar 2192 slides in its axial direction. The L-shaped slide plate 2193 is brought close to the sub concave frame 2181 by the elastic force of the slide plate return spring 2194. Fig. 1 shows the male and female latch assemblies in a locked condition. When the cover 22 needs to be opened, the L-shaped sliding plate 2193 is slid downwards, so that the L-shaped sliding plate 2193 loses the limiting effect on the locking piece 2183, the locking piece 2183 is separated from the female concave frame 2191 under the action of the elastic force of the torsion spring 2184, and the sub-locking component and the female locking component are separated, so that the cover 22 can be opened. When the locking operation is required, the L-shaped sliding plate 2193 is slid downward to expose the inner upper portion of the female frame 2191, the lock plate 2183 is reversed against the elastic force of the torsion spring 2184 to be positioned at the inner upper portion of the female frame 2191, and then the L-shaped sliding plate 2193 is released.

Specifically, the front surface of the L-shaped sliding plate 2193 is provided with anti-slip threads that prevent the occurrence of hand slip when sliding the L-shaped sliding plate 2193.

Specifically, the front side wall of the housing 21 is provided with a handle 220, and the handle 220 is provided to facilitate carrying the housing 21.

From portable angle, do not use traditional lead acid battery, satisfy the condition of production demand and change and select the ternary lithium cell that the quality is lighter more, compare with traditional battery and carry out the capacity expansion through increasing the group battery, adopt the parallelly connected method of reserve group battery to carry out the capacity expansion. Meanwhile, the practical application in the transformer substation is considered, an inverter module is added, and the output alternating current is supplied to a relay protection calibration instrument for use. Therefore, the portable multifunctional mobile power supply consists of three major parts, namely a charging module, a storage battery module and an auxiliary module.

The charging module comprises a rectifying module, a direct current conversion module, a monitoring module and a direct current acquisition unit; the rectifying module is used for converting externally input 220V alternating current into direct current, filtering surge, wire noise, instantaneous high and low voltage and wire noise on the mains supply and providing stable electric energy; the direct current conversion module converts the 220V direct current into direct currents with different voltage grades; the direct current acquisition power supply is used for acquiring direct current voltage, current and a switching state and sending the direct current voltage, the current and the switching state to the monitoring module for state monitoring.

The storage battery module comprises a ternary lithium battery module, a storage battery BMS management module and an inversion module; wherein ternary lithium battery module carries out the storage of electric energy, and battery BMS management module then protects and monitors the running state of battery, reports an emergency and asks for help or increased vigilance to output circuit's anomaly, and the contravariant module is in the battery output end, and it provides the power consumption for the check-up instrument to convert the direct current into the alternating current when the contravariant module access switch need be opened. Because the internal resistance of the lithium ion battery is small, for the battery pack with inconsistent voltage, especially large voltage difference, the dangerous conditions of ignition, overlarge current, interface burning, damage of a protection board, overhigh battery temperature, battery explosion and the like can occur when the battery pack is forcibly connected in parallel. In addition, when the parallel connection is used, the discharge voltages of two groups of batteries are inconsistent, the discharge temperature of a certain group is overhigh, and the like. To solve the above problems, the soft connection and the hard connection are required to be performed step by step in the process of parallel connection expansion connection, and the state of the battery pack needs to be monitored constantly in the working process, so that the various problems are prevented.

Based on the above problems, the technical solution designs a parallel capacity expansion circuit, and as shown in fig. 8, a block diagram of the parallel capacity expansion circuit of the portable lithium ion energy storage power supply is shown. Specifically, the portable multifunctional mobile power supply includes: the power supply comprises an energy storage power supply, a standby power supply, a control circuit, a communication circuit, a bidirectional DC-DC circuit, a current limiting circuit and a large current switch. And two ends of the bidirectional DC-DC circuit are respectively connected with the energy storage power supply and the standby power supply. Two ends of the current limiting circuit are connected in parallel to two ends of the bidirectional DC-DC circuit. The current limiting circuit comprises a current limiting resistor and a current limiting switch K1 which are connected in series in sequence. The high-current switch K2 is connected in parallel at two ends of the bidirectional DC-DC circuit. And two ends of the control circuit are respectively connected with the energy storage power supply and the standby power supply. And two ends of the communication circuit are respectively connected with the energy storage power supply and the standby power supply. Specifically, the charging module is electrically connected with the control circuit and provides a charging function for the energy storage power supply. The assembly can be built in the portable multifunctional mobile power supply, and can also be independently taken out to be a capacity expansion device. The control circuit is a core part of the portable multifunctional mobile power supply parallel expansion circuit and is used for receiving and sending signals to the communication circuit, controlling the current limiting circuit, the bidirectional DC-D circuit and the heavy current switch K2, monitoring various states, alarming, path management and the like. And the communication circuit is used for processing communication signals between the energy storage power supply and the standby power supply which are connected in parallel. The current limiting resistor and the current limiting switch K1 are combined into a current limiting circuit, and are connected in parallel with small current for soft connection of two parallel devices which are just in contact. The bidirectional DC-DC circuit is used for carrying out primary voltage balance on two devices with different voltages so that the voltages of the devices are basically the same. The high-current switch K2 (generally can bear larger current than a common switch, and can be specifically selected according to the maximum current required to bear) is used for hard connection of two devices. When the circuit is started, the circuit formally enters parallel connection.

In addition, the technical scheme is connected in series with a balance bridge circuit, when grounding exists in a direct current loop, current balance at two ends of the balance bridge is broken, and the power management board buzzes and alarms; compare in conventional ground connection detector with the output of joining in marriage the balance bridge series, this technical scheme locates the balance bridge return circuit between battery input switch and the storage battery, can enough monitor debugging equipment direct current loop, also can monitor the inside balanced state of battery simultaneously, forms the inside dual monitoring of battery with battery BMS management module.

The auxiliary module comprises a portable mobile carrier module and a battery pack output wiring module.

When a temporary power supply needs to be provided in a production field, the mobile power supply is pushed to the vicinity of the test screen cabinet, and the mobile power supply is started; the power supply carries out self-checking, the yellow running indicator lamp flickers, the yellow running lamp is stable and constantly lighted after the self-checking is finished, and the corresponding voltage grade is selected for output; measuring the potential of an output power supply by using a universal meter, and measuring the voltage of a direct current terminal of the test screen cabinet; after the operation safety is confirmed, the test line is accessed, the voltage of the direct current terminal strip is measured after the test line is accessed, the device is electrified, and whether the panel has direct current grounding alarm or not is noticed in the electrifying process.

If the checking instrument needs to use alternating current, the alternating current output switch of the battery panel is turned on, and the power line of the instrument is connected to the extension socket to use the alternating current for power supply.

The process of opening and closing the present housing cover 22 using the new type is as follows: when the utility model needs to be opened, firstly, the push block locking component is operated to lose the locking effect on the push block 29, under the elastic action of the piston return spring 215, the piston 211 moves towards the push block groove 28, the movement of the piston 211 causes the air in the accommodating groove 26 to be pumped into the piston cavity 210, the elastic sealing film 27 loses the extrusion deformation of the air and is accommodated in the accommodating groove 26, then the sub-locking component and the female locking component are opened, the shell cover 22 can be opened, when the shell cover 22 needs to be locked, firstly, the shell cover 22 is locked on the shell 1, then, the sub-locking component and the female locking component are operated to lock the shell 1 and the shell cover 22, then, the push block 29 is pushed towards the inside of the push block groove 28, the elastic action of the piston return spring 215 is overcome to drive the piston 211 to move in the piston cavity 210, the air in the piston cavity 210 is conveyed into the accommodating groove 26 through the vent passage 216 by the movement of the piston 211, the elastic sealing film 27 is deformed to extend out of the accommodating groove 26 after the accommodating groove 26 is filled with air and is filled in the arc-shaped groove 24 to seal the contact between the shell 21 and the shell cover 22, then the push block locking assembly is operated to fix the position of the push block 29, the service life of the mobile power supply is prolonged by the sealed space, wherein the knob 271 is screwed, when the push block is overlapped with the push block 29 through the groove 2173, the push block 29 can be withdrawn in the push block groove 28, when the shell cover 22 needs to be opened, the L-shaped sliding plate 2193 is slid downwards to enable the L-shaped sliding plate 2193 to lose the limiting effect of the locking plate 2183, the locking plate 2183 is separated from the female concave frame 2191 under the action of the elastic force of the torsion spring 2184, the sub-locking assembly is separated from the female locking assembly, the shell cover 22 can be opened, when the locking operation is needed, the L-shaped sliding plate 2193 downwards to expose the upper part of the inner side of the female concave frame 2191, the locking plate 2183 is overturned against the elastic force of the torsion spring 2184, the sliding plate is positioned at the upper part of the inner side of the female frame 2191, and then the L-shaped sliding plate 2193 is loosened.

In the description of the present invention, unless expressly stated or limited otherwise, the terms "mounted," "connected," and "fixed" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral part; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The utility model discloses the standard part that uses all can purchase from the market, and dysmorphism piece all can be customized according to the description with the record of drawing of description, and the concrete connection mode of each part all adopts conventional means such as ripe bolt, rivet, welding among the prior art, and machinery, part and equipment all adopt prior art, and conventional model, including circuit connection adopts conventional connection mode among the prior art, does not detailed here again.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (8)

1. The utility model provides a portable multi-functional portable power source, includes portable power source and protecting crust, its characterized in that: the portable power source is arranged in the protective shell, the protective shell comprises a shell body and a shell cover, the shell body is hinged with the rear end of the shell cover, an extending ring groove is formed in the edge of the upper end of the shell body, an arc-shaped groove is formed in the bottom of the extending ring groove, an extending convex ring is arranged on the edge of the lower end of the shell cover, an accommodating groove is formed in the lower end of the extending convex ring, an elastic sealing film is connected onto the side wall of the accommodating groove, a push block groove is formed in the front side wall of the shell cover, a push block is movably arranged in the push block groove, a piston cavity is uniformly formed in the bottom of the push block groove, a piston is movably arranged in the piston cavity, one end of the piston is connected with one end of a push rod, the other end of the push rod is fixedly connected with the push block, a movable plate is fixedly arranged on the outer wall of the push rod, a fixed plate is sleeved outside the push rod and positioned between the movable plate and the piston, the fixed plate is fixedly connected with the inner side wall of the piston cavity, the outer portion of the push rod is located between the movable plate and the fixed plate, a piston reset spring is sleeved on the movable plate, one end of the piston cavity is connected with an air channel, the other end of the air channel is connected with the accommodating groove, the front side wall of the shell cover is provided with a push block locking assembly for limiting the movement of the push block, the front side wall of the shell cover is provided with a sub-lock catch assembly, and the position, matched with the sub-lock catch assembly, of the front side wall of the shell is provided with a female lock catch assembly.

2. The portable multifunctional mobile power supply of claim 1, wherein: the push block locking assembly comprises a knob fixing shaft, one end of the knob fixing shaft is fixedly mounted on the front side wall of the shell cover and located on one side of the push block groove, the other end of the knob fixing shaft is rotatably mounted with a knob, and the push block passing groove is formed in the knob.

3. The portable multifunctional mobile power supply of claim 2, wherein: the outer side wall of the knob is provided with anti-skid grains.

4. The portable multifunctional mobile power supply of claim 1, wherein: the sub-lock catch assembly comprises a sub-concave frame, the inner side wall of the sub-concave frame is provided with a fixed shaft, the outer rotating sleeve of the fixed shaft is provided with a locking piece, the outer side wall sleeve of the fixed shaft is provided with a torsional spring, one end of the torsional spring is fixedly connected with the inner side wall of the sub-concave frame, the other end of the torsional spring is fixedly connected with the locking piece, the female lock catch assembly comprises a female concave frame, the inner side wall of the female concave frame is provided with a sliding rod, the outer movable sleeve of the sliding rod is provided with an L-shaped sliding plate, the outer sleeve of the sliding rod is provided with a sliding plate reset spring, one end of the sliding plate reset spring is fixedly connected with the inner side wall of the female concave frame, and the other end of the sliding plate reset spring is fixedly connected with the L-shaped sliding plate.

5. The portable multifunctional mobile power supply of claim 4, wherein: the front surface of the L-shaped sliding plate is provided with anti-skid lines.

6. The portable multifunctional mobile power supply of claim 1, wherein: the front side wall of the shell is provided with a handle.

7. The portable multifunctional mobile power supply of claim 1, further comprising: the power supply comprises an energy storage power supply, a standby power supply, a control circuit, a communication circuit, a bidirectional DC-D circuit, a current limiting circuit and a large current switch; the two ends of the bidirectional DC-DC circuit are respectively connected with the energy storage power supply and the standby power supply, the two ends of the current limiting circuit are connected in parallel with the two ends of the bidirectional DC-DC circuit, the current limiting circuit comprises a current limiting resistor and a current limiting switch which are sequentially connected in series, the high-current switch is connected in parallel with the two ends of the bidirectional DC-DC circuit, the two ends of the control circuit are respectively connected with the energy storage power supply and the standby power supply, and the two ends of the communication circuit are respectively connected with the energy storage power supply and the standby power supply.

8. The portable multifunctional mobile power supply of claim 7, further comprising a charging module, wherein the charging module is electrically connected to the control circuit.

Images