CN207651548U - A kind of automobile-used startup power supply device - Google Patents

Abstract

The utility model provides a starting power supply device for a vehicle, which includes a casing and a battery module set inside the casing; the casing includes an upper casing and a lower casing that are sealed and matched; the upper casing includes an outer surface and an inner surface opposite to each other, and the outer surface There are positive and negative terminals, emergency interface and electronic display screen, and a protection circuit board is provided on the inner surface; the protection circuit board is connected to the positive and negative terminals through the connecting copper bar and connected to the battery module through the soft copper bar; The lower shell includes a pair of long side plates and a pair of short side plates; one side of the pair of long side plates and the pair of short side plates is provided with a fixed plate located in the lower shell; the fixed plate located in the pair of short side plates A fixing hole is provided near one end of the upper case; a pair of pressing bars arranged on both sides of the battery module are also included, and the battery module is fixed in the lower case by screws passing through the pressing bars and the fixing holes. The starting power supply device for vehicles in the utility model has the advantages of compact structure, strong impact and extrusion resistance, safety and practicality.

Description

A kind of starting power supply device for vehicle

【Technical field】

The utility model relates to the technical field of vehicle power supplies, in particular to a starting power supply device for vehicles.

【Background technique】

As environmental protection and energy conservation are paid more and more attention, it is more and more urgent to seek a starting power supply with high efficiency, environmental protection and high energy density. At present, lead-acid batteries are widely used as starting power for automobiles. Lead-acid batteries have the advantages of large capacity and stable performance, but their main raw material, metal lead, is toxic and easily pollutes the environment; In addition, the high-power charge and discharge performance of lead-acid batteries is poor, and their self-discharge is large, and there is no over-discharge protection, and the remaining power cannot be displayed. It needs to be recharged or replaced frequently, and the recycling cost is high. Therefore, it is used Bring a lot of inconvenience in the process. In the prior art, as a starting power supply, the supercapacitor has good high-power discharge performance and can start stably at low temperature; however, it is difficult to assemble the charging and discharging ports of the starting power supply together, so that it is easy to be confused during use, resulting in safety accidents; At the same time, its energy storage is relatively small, which cannot meet the power usage requirements of the vehicle. In the prior art, the starting power supply of the battery module has the advantages of lightness and environmental protection, good low temperature performance, good charge and discharge performance, long cycle life, etc., but it is not easy to fix, the structure is not reliable, and the circuit is easy to loose when the vehicle is running, so that the startup The power supply does not work normally, and the power cannot be displayed during use. If an emergency occurs, it cannot be dealt with in time.

As we all know, lithium iron phosphate batteries have the advantages of environmental protection, high energy density, long cycle life, strong charge and discharge capacity, small self-discharge, good low temperature performance, easy maintenance, recycling and reuse, etc., and are becoming more and more popular among the public. The use of lithium iron phosphate battery as the starting power can not only reduce the weight of the vehicle, save energy, but also be environmentally friendly and light, meeting the requirements for starting the vehicle.

【Content of utility model】

The purpose of the utility model is to provide a starting power device for a vehicle, which is composed of a lithium iron phosphate battery, has a compact structure, strong impact and extrusion resistance, and is safe and practical.

In order to achieve the above object, the utility model provides a starting power supply device for a vehicle, which includes a casing and a battery module set inside the casing; the casing includes an upper casing and a lower casing that are sealed and fitted; the upper casing includes opposite The outer surface and the inner surface; the outer surface of the upper shell is provided with a positive terminal, a negative terminal, an emergency interface and an electronic display; one end of the positive terminal and the negative terminal protrude from the upper shell and the other end passes through the inner surface of the upper shell; the inner surface of the upper shell is provided with a protective circuit board; the protective circuit board is respectively connected to the positive terminal and the negative terminal through a plurality of connection copper bars Electrically connected, and the protection circuit board is electrically connected to the battery module through a plurality of soft copper bars; the lower case includes a pair of long side plates arranged at intervals and a pair of short side plates connected to the pair of long side plates One side of the pair of long side plates and the pair of short side plates is provided with a fixed plate located in the lower shell; the fixed plate located on the pair of short side plates near the end of the upper shell is provided with a plurality of fixed plates. hole; the vehicle start-up power supply device also includes a pair of pressure bars located on both sides of the battery module, and the battery module is fixed by a plurality of screws passing through a pair of pressure bars and a plurality of fixing holes in a pair of short side plates in the lower shell.

In a preferred embodiment, the upper case is provided with a plurality of first through holes located at the four corners of the upper case and passing through the outer surface and the inner surface, and the lower case is provided with a plurality of first through holes located at the four corners of the lower case and the first through holes. The holes are matched with the second through hole, and the upper shell and the lower shell are connected and fixed by screws passing through the first through hole and the second through hole.

In a preferred embodiment, the outer side of the screw is covered with a rubber plug, and a waterproof sealing ring is provided between the upper shell and the lower shell.

In a preferred embodiment, the bottoms of the pair of long side plates and the pair of short side plates are provided with fixing strips located outside the lower shell, and the fixing strips are provided with a plurality of sequentially spaced card slots.

In a preferred embodiment, the surface of the fixing plate close to the battery module has a corrugated structure.

In a preferred embodiment, one side of the upper case is recessed toward the direction of the battery module to form a U-shaped fixed platform on the outer surface of the upper case, and the positive terminal and the negative terminal are provided on a fixed platform.

In a preferred embodiment, the positive pole terminal and the negative pole terminal are respectively provided with a positive pole mark and a negative pole mark on the fixed platform.

In a preferred embodiment, the emergency interface part is provided with an interface cover, and the emergency interface part is provided with a copper sheet inside the interface cover.

In a preferred embodiment, the connecting copper bar and the soft copper bar are fastened and connected by a plurality of bolts.

In a preferred embodiment, the battery module is composed of a plurality of lithium iron phosphate cells connected in series and parallel; the protection circuit board is fixed on the inner surface of the upper case by screws; the fixing hole is parallel to the short side plate.

The vehicle starting power supply device provided by the utility model adopts a lithium iron phosphate battery module, which has high energy density, good low-temperature performance, safety and environmental protection; both the upper shell and the lower shell are equipped with fixed structures, and the internal structure of the shell is compact, saving space. It is easy to assemble and easy to maintain; the fixed structure is firm, the impact resistance is strong, and the safety performance is high.

【Description of drawings】

Fig. 1 is a structural schematic diagram of a vehicle starter power supply device provided by the present invention.

FIG. 2 is a schematic structural view of the outer surface of the upper case in the starting power supply device for vehicles shown in FIG. 1 .

FIG. 3 is a schematic structural view of the inner surface of the upper case in the starting power supply device for vehicles shown in FIG. 1 .

FIG. 4 is a schematic structural view of the lower case in the starting power supply device for vehicles shown in FIG. 1 .

【Detailed ways】

In order to make the purpose, technical solution and beneficial technical effects of the utility model clearer, the utility model will be further described in detail below in conjunction with the accompanying drawings and specific implementation methods. It should be understood that the specific implementations described in this specification are only for explaining the utility model, not for limiting the utility model.

Please refer to FIG. 1 , the present invention provides a starter power device 100 for a vehicle, which includes a casing 10 and a battery module 20 disposed in the casing 10 . The casing 10 is in the shape of a cuboid and includes an upper casing 11 and a lower casing 12 that are tightly fitted. The battery module 20 is composed of a plurality of lithium iron phosphate batteries 21 connected in series and in parallel. When a single lithium iron phosphate battery 21 is scrapped, it will not affect the normal operation of the starting power supply, which is easy to maintain and has low recycling costs.

Please refer to FIG. 2 and FIG. 3 together. The upper case 11 includes an outer surface 111 and an inner surface 112 opposite to each other. The U-shaped fixing platform 1111 on the top is conducive to the fixing of the device. The outer surface 111 of the upper shell 11 is provided with a positive terminal 1112 , a negative terminal 1113 , an emergency interface 1114 and an electronic display 1115 . The positive terminal 1112 and the negative terminal 1113 are arranged on the fixed platform 1111, one end of the positive terminal 1112 and the negative terminal 1113 protrude from the outer surface 111 of the upper shell 11 and the other end passes through the The inner surface 112 of the upper case 11 is electrically connected to the battery module 20 . Further, the positive terminal 1112 and the negative terminal 1113 are respectively provided with a positive sign 1116 and a negative sign 1117 on the fixed platform 1111, which effectively avoids the reverse connection of the positive and negative poles. The emergency interface part 1114 is provided with an interface cover 1118 , and the emergency interface part 1114 is provided with a copper sheet 1119 inside the interface cover 1118 . The electronic display screen 1115 is used to display the remaining power of the starting power supply, which is convenient for the user to understand the usage status of the power supply and to replenish power in time.

The inner surface 112 of the upper shell 11 is provided with a protective circuit board 1121 , and the protective circuit board 1121 is fixed on the inner surface 112 of the upper shell 11 by a plurality of screws 30 . The protection circuit board 1121 is electrically connected to the positive terminal 1112 and the negative terminal 1113 respectively through a plurality of connection copper bars 1122 , and is electrically connected to the battery module 20 through a plurality of soft copper bars 1123 . The connecting copper bar 1122 and the soft copper bar 1123 are fastened and connected by a plurality of bolts 1124, which have strong anti-seismic and tensile capabilities. The soft copper bar 1123 is easy to bend and twist, making the connection simple and convenient, and the overall connection circuit is safe and reliable. The protective circuit board 1121 is used to prevent large current flow, ensure circuit safety, and prevent over-discharging and over-charging; It can be used for emergency start to ensure the normal operation of the starting power supply.

Please also refer to FIG. 4 , the lower shell 12 includes a pair of long side plates 121 arranged at intervals and a pair of short side plates 122 connected to a pair of long side plates 121 , the pair of long side plates 121 and a pair of short side plates The bottoms of the side plates 122 are provided with fixing strips 123 outside the lower shell 12, and the fixing strips 123 are provided with a plurality of slots 1231 spaced in sequence, which can be connected and fixed during assembly to make the fixing firm. One side of the pair of long side plates 121 and the pair of short side plates 122 of the lower case 12 is provided with a fixing plate 124 located in the lower case 12, and the surface of the fixing plate 124 on the side close to the battery module 20 is The wavy structure can effectively resist external impact and extrusion, so that the inner side of the lower shell 12 is evenly and reasonably stressed, and has high structural strength. Further, a plurality of fixing holes 1241 parallel to the pair of short side plates 122 are defined at one end of the fixing plate 124 on the pair of short side plates 122 close to the upper shell 11 .

The vehicle starter power supply device 100 also includes a pair of pressure bars 40 arranged on both sides of the battery module 20, and a plurality of screws 30 pass through the pair of pressure bars 40 and the fixing holes 1241 of the pair of short side plates 122 to secure the battery The module 20 is fixed in the lower case 10 . The upper case 11 is provided with a plurality of first through holes (not shown) located at the four corners of the upper case 11 and passing through the outer surface 111 and the inner surface 112 , and the lower case 12 is provided with a plurality of first through holes located at the four corners of the lower case 12 . The second through hole 113 matched with the first through hole, the upper shell 11 and the lower shell 12 are connected and fixed by the screw 50 passing through the first through hole and the second through hole 113 . In this embodiment, the outer side of the screw 50 is covered with a rubber plug, and a waterproof sealing ring is provided between the upper shell 11 and the lower shell 12, so that the overall structure is compact, reliable, and beautiful, and can resist relatively large impact and extrusion. High pressure, dustproof and waterproof grade reaches IP67, widely applicable to various motor vehicles.

The vehicle starting power supply device provided by the utility model adopts a lithium iron phosphate battery module, which has high energy density, good low-temperature performance, safety and environmental protection; the overall structure is compact, space-saving, easy to assemble and easy to maintain; and the fixed structure is firm and impact-resistant Strong extrusion capacity and high safety performance.

The utility model is not limited to the description in the description and the implementation, so those skilled in the art can easily realize additional advantages and modifications, so without departing from the spirit and general concept defined by the claims and equivalent scope Without limitation, the invention is not limited to the specific details, representative apparatus, and illustrative examples shown and described herein.

Claims (10)

1. a kind of automobile-used startup power supply device, including shell and the battery modules in shell；The shell includes sealing The upper casing and lower casing of cooperation；It is characterized in that：The upper casing includes opposite outer surface and inner surface；The outer surface of the upper casing It is equipped with positive terminal, negative terminal, emergent interface portion and electronic display；The positive terminal, negative terminal One end of column stretches out in the outer surface of the upper casing and the other end passes through the inner surface of the upper casing；On the inner surface of the upper casing Equipped with protection circuit plates；The protection circuit plates are electrical with positive terminal, negative terminal respectively by multiple connecting copper bars Connection, and the protection circuit plates are electrically connected by multiple soft copper bars and battery modules；The lower casing includes that a pair of of interval is set The long side plate set and a pair of of the short side plate for connecting a pair of long side plate；The side of the pair of long side plate and a pair of of short side plate is equipped with Fixed plate in lower casing；Fixed plate on the pair of short side plate offers multiple fixations close to one end of upper casing Hole；The automobile-used startup power supply device further includes a pair of of press strip set on the battery modules both sides, is passed through by multiple screws Battery modules are fixed in lower casing by multiple mounting holes of a pair of of press strip and a pair of of short side plate.

2. automobile-used startup power supply device according to claim 1, it is characterised in that：The upper casing offers multiple positioned at upper The quadrangle of shell and the first through hole for running through outer surface and inner surface, the lower casing offers multiple positioned at the quadrangle of lower casing and first Second through-hole of through-hole cooperation passes through first through hole and the second through-hole that upper casing and lower casing are attached fixation by screw.

3. automobile-used startup power supply device according to claim 2, it is characterised in that：It is cased with rubber plug on the outside of the screw, Waterproof grommet is equipped between the upper casing and lower casing.

4. automobile-used startup power supply device according to claim 1, it is characterised in that：The pair of long side plate and a pair of of short side The bottom of plate is equipped with the fixed strip outside lower casing, and multiple card slots being spaced successively are offered on the fixed strip.

5. automobile-used startup power supply device according to claim 1, it is characterised in that：The fixed plate is close to battery modules one The surface of side is in wave structure.

6. automobile-used startup power supply device according to claim 1, it is characterised in that：The lateral battery of the one of the upper casing The direction of module is recessed to form U-shaped fixed platform on the outer surface of the upper casing, and the positive terminal, cathode connect Terminal is set in fixed platform.

7. automobile-used startup power supply device according to claim 6, it is characterised in that：The positive terminal, negative terminal Anode mark, cathode mark in fixed platform are respectively equipped at column.

8. automobile-used startup power supply device according to claim 1, it is characterised in that：The emergent interface portion is equipped with interface Lid, the emergent interface portion are equipped with the copper sheet being located in access flap.

9. automobile-used startup power supply device according to claim 1, it is characterised in that：The connecting copper bar and soft copper bar use Multiple bolts are fastenedly connected.

10. automobile-used startup power supply device according to claim 1, it is characterised in that：The battery modules are by multiple phosphoric acid Iron lithium cell connection in series-parallel forms；The protection circuit plates are screwed on the inner surface of upper casing；The mounting hole is parallel In the short side plate.