CN212373596U - Battery module of electric vehicle - Google Patents
Battery module of electric vehicle Download PDFInfo
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- CN212373596U CN212373596U CN202020699237.4U CN202020699237U CN212373596U CN 212373596 U CN212373596 U CN 212373596U CN 202020699237 U CN202020699237 U CN 202020699237U CN 212373596 U CN212373596 U CN 212373596U
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Abstract
The utility model provides an electric vehicle battery module, including battery pack unit and discharge unit, the battery pack unit is used for charging and discharging, the discharge unit is used for discharging, the power transmission end of the discharge unit is inserted and established on the discharge end of the battery pack unit, the electric vehicle battery module also includes a locking assembly, the locking assembly avoids the power transmission end of the discharge unit and the discharge end of the battery pack unit; the locking assembly comprises a base and a connecting lock; the base is used for being fixed on the electric vehicle, and the battery pack unit is in sliding fit with the base in a preset direction; the connecting lock is fixed on the base; the connection lock has a locking state and an unlocking state, and when the connection lock is in the locking state, the battery pack unit is limited on the base; when the connecting lock is in the unlocking state, the battery pack unit can slide to be separated from the base, so that the battery pack unit is conveniently detached from the electric vehicle.
Description
Technical Field
The utility model belongs to the technical field of the electric motor car, more specifically say, relate to an electric motor car battery module.
Background
An electric vehicle is a mechatronic vehicle in which a battery module having a charging/discharging function is used as an auxiliary energy source, and a motor, a controller, a battery module, a rotating handle, a brake handle and other control parts and a display instrument system are installed on a common small vehicle. It is widely used due to its economical and convenient advantages, and is not limited in cities due to its use of clean energy. The biggest problem of electric vehicles is charging during use. Therefore, the battery module of the electric vehicle is convenient to disassemble and assemble quickly, has certain safety and is prevented from being lost easily. The electric vehicle is generally provided with a clamping structure, and then the battery module is clamped on the clamping structure to realize the clamping of the battery module on the electric vehicle. The clamping structure is provided with a locking piece, and the battery module is locked on the clamping structure through the locking piece. The clamping structure and the battery module have more contact areas, and great labor is consumed when the battery module is dismounted.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide an electric motor car battery module to solve the very hard technical problem in the time of dismantling battery module that exists among the prior art.
In order to achieve the above object, the utility model adopts the following technical scheme: there is provided an electric vehicle battery module including a battery pack unit for charging and discharging, and a discharge unit for discharging, a power transmission terminal of the discharge unit being inserted on a discharge terminal of the battery pack unit, the electric vehicle battery module further including a locking assembly that avoids the power transmission terminal of the discharge unit and the discharge terminal of the battery pack unit;
the locking assembly comprises a base and a connecting lock;
the base is used for being fixed on the electric vehicle, and the battery pack unit is in sliding fit with the base in a preset direction;
the connecting lock is fixed on the base;
the connection lock has a locking state and an unlocking state, and when the connection lock is in the locking state, the battery pack unit is limited on the base; when the connection lock is in the unlocked state, the battery unit may be slid to disengage from the base.
Further, the connecting lock comprises a lock body, a lock cylinder, a lock tongue and an elastic piece;
one end of the lock tongue is positioned in the lock body, and the other end of the lock tongue is positioned outside the lock body;
the lock tongue is elastically connected with the lock body through the elastic piece;
the lock core is fixed in the lock body, connected with one end of the lock bolt in the lock body and used for controlling the lock bolt to be far away from the battery pack unit, a key hole of the lock core is positioned outside the lock body and avoids the battery pack unit, and when the connecting lock is in a locking state, one end of the lock bolt, which is positioned outside the lock body, is inserted in the battery pack unit under the elastic force of the elastic piece; when the connecting lock is in the unlocking state, the lock tongue is far away from the battery pack unit.
Further, the locking assembly further comprises a dovetail block secured to the battery unit or the base;
when the dovetail block is fixed on the battery pack unit, the base is provided with a first dovetail groove at least one end of which penetrates through the base, and the dovetail block penetrates through one end of the base from the first dovetail groove and slides into the first dovetail groove;
or when the dovetail block is fixed on the base, the battery pack unit is provided with a second dovetail groove at least one end of which penetrates through the battery pack unit, and the dovetail block slides into the second dovetail groove from one end of the second dovetail groove penetrating through the base.
Further, the base comprises a bottom plate, a protective cover and a locking cover;
the bottom plate is fixed on the electric vehicle;
the protective cover is fixed on the bottom plate and avoids the electric vehicle, and a mounting hole is formed in the protective cover;
the locking cover is detachably connected to the bottom plate;
the bottom plate, the visor with the locking closure encloses and closes and form an installation cavity, the connection lock is located the installation cavity, the key hole is located in the mounting hole, the spring bolt is worn to locate the locking closure.
Further, the lock body is detachably fixed on the lock cover.
Furthermore, the first dovetail groove comprises a first groove and a second groove, the first groove is arranged on the protective cover and penetrates through the protective cover, the second groove is arranged on the lock cover, one end of the second groove penetrates through one end of the lock cover and is communicated with one end of the first groove, and the dovetail block slides into the first dovetail groove from one end, far away from the second groove, of the first groove.
Furthermore, the bolt is located one end outside the lock body is equipped with the spigot surface, and when the group battery unit was in when sliding on the base, the group battery unit with the spigot surface contact to the drive the bolt is to the lock body internalization.
Further, the battery pack unit comprises a shell, a charging and discharging protection circuit board, a battery pack and a discharging terminal, and the discharging unit comprises a discharging shell, a plurality of positive conducting strips and a plurality of negative conducting strips;
the charging and discharging protection circuit board and the battery pack are fixed in the shell;
the discharge terminal comprises a fixed seat, a negative electrode input end, a positive electrode input end, a plurality of positive electrode output ends and a plurality of negative electrode output ends, and the negative electrode input end, the positive electrode input end, the plurality of positive electrode output ends and the plurality of negative electrode output ends are arranged on the fixed seat;
the fixed seat is fixed on the shell;
the negative input end is connected with the discharge end of the charge-discharge protection circuit board, the positive input end is connected with the positive end of the battery pack, one end of each negative output end is simultaneously connected with the negative input end, and one end of each positive output end is simultaneously connected with the positive input end;
each positive conducting plate and each negative conducting plate are fixed on the discharge shell, one end of each positive conducting plate and one end of each negative conducting plate are located in the discharge shell, the other end of each positive conducting plate and the other end of each negative conducting plate are located outside the discharge shell, each positive output end corresponds to each positive conducting plate one to one, each negative output end corresponds to each negative conducting plate one to one, one end of each positive conducting plate located outside the discharge shell and one end of each negative conducting plate located outside the discharge shell are used for being inserted into the fixing seat, one end of each positive conducting plate inserted into the fixing seat is in contact with the other end of the corresponding positive output end, and one end of each negative conducting plate inserted into the fixing seat is in contact with the other end of the corresponding negative output end.
Further, the discharge casing comprises an installation seat and an insulated discharge seat, the discharge seat is arranged on the installation seat, a fixed cavity is formed between the discharge seat and the installation seat, the positive electrode conducting strips and the negative electrode conducting strips penetrate through the discharge seat, and a controller of the electric vehicle is installed in the fixed cavity.
Furthermore, the battery module of the electric vehicle further comprises a positive electrode lead and a negative electrode lead, one end of each positive electrode conducting strip located in the fixing cavity is connected to the positive electrode lead, and one end of each negative electrode conducting strip located in the fixing cavity is connected to the negative electrode lead.
The utility model provides a pair of electric motor car battery module's beneficial effect lies in: compared with the prior art, the discharging end of the battery pack unit inputs electric energy to the power transmission end of the discharging unit, and the discharging unit discharges. Because the battery pack unit is inserted and matched with the discharge unit, the battery pack unit is conveniently inserted into the discharge unit or pulled out of the discharge unit. When the user need charge the electric motor car, make earlier to connect the lock and be in the unblock state, then slide the group battery unit to breaking away from the base, play the effect of laborsaving to the user need not place the group battery unit and charge on the electric motor car, improves the convenience of dismantling the group battery unit. When a user needs to install the battery pack unit on the electric vehicle, the connecting lock is firstly enabled to be in an unlocking state, then the battery pack unit is enabled to be in sliding fit with the base in the preset direction, namely the battery pack unit cannot move in the direction different from the preset direction, and then the connecting lock is enabled to be in a locking state, so that the battery pack unit is fixed on the electric vehicle.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the embodiments or the prior art descriptions 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 it is obvious for those skilled in the art to obtain other drawings without inventive labor.
Fig. 1 is a schematic structural diagram of a battery module of an electric vehicle according to an embodiment of the present invention;
fig. 2 is a schematic diagram illustrating an explosion structure of a battery module of an electric vehicle according to an embodiment of the present invention;
fig. 3 is a schematic diagram of an explosion structure of a battery module of an electric vehicle according to an embodiment of the present invention;
FIG. 4 is an enlarged view taken at A in FIG. 3;
fig. 5 is a schematic view of a partial structure of a battery module of an electric vehicle according to an embodiment of the present invention.
Wherein, in the figures, the respective reference numerals:
1. a battery pack unit; 11. a housing; 12. a charge and discharge protection circuit board; 121. a circuit board; 122. a battery connection port; 123. a charge and discharge control circuit; 124. a charge and discharge protection circuit; 125. a charging terminal; 126. a discharge port; 13. a discharge terminal; 131. a fixed seat; 132. a negative input end; 133. a positive input terminal; 134. a positive output end; 135. a negative output end; 14. a battery pack; 2. a discharge unit; 21. a discharge case; 211. a mounting seat; 2111. a wire guide hole; 212. a discharge seat; 213. a fixed cavity; 22. a positive electrode conductive sheet; 23. a negative electrode conductive sheet; 3. a locking assembly; 31. a base; 311. a base plate; 312. a protective cover; 3121. mounting holes; 313. a locking cover; 314. a mounting cavity; 32. connecting a lock; 321. a lock body; 322. a lock cylinder; 3221. a key hole; 323. a latch bolt; 3231. a guide surface; 33. a dovetail block; 4. a positive electrode lead; 5. a negative electrode lead; 611. a first groove; 612. a second groove; 7. a charging connector; 8. a controller; 9. and a charging switch.
Detailed Description
In order to make the technical problem, technical solution and advantageous effects to be solved by the present invention more clearly understood, the following description is given in conjunction with the accompanying drawings and embodiments to illustrate the present invention in further detail. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.
It will be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in an orientation or positional relationship indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.
Referring to fig. 1 and fig. 2 together, a battery module of an electric vehicle according to the present invention will now be described. An electric vehicle battery module comprises a battery pack unit 1 and a discharge unit 2, wherein the battery pack unit 1 is used for charging and discharging, the discharge unit 2 is used for discharging, a power transmission end of the discharge unit 2 is inserted into a discharge end of the battery pack unit 1, the electric vehicle battery module also comprises a locking assembly 3, and the locking assembly 3 avoids the power transmission end of the discharge unit 2 and the discharge end of the battery pack unit 1;
the locking assembly 3 comprises a base 31 and a connecting lock 32;
the base 31 is used for being fixed on an electric vehicle, and the battery pack unit 1 is in sliding fit with the base 31 in a preset direction;
the connecting lock 32 is fixed on the base 31;
the connection lock 32 has a locked state and an unlocked state, and when the connection lock 32 is in the locked state, the battery unit 1 is restrained on the base 31; when the connection lock 32 is in the unlocked state, the battery unit 1 can be slid to be disengaged from the base 31.
The utility model provides a pair of electric motor car battery module, compared with the prior art, the end of discharging of group battery unit 1 inputs the electric energy into the power transmission end of unit 2 that discharges, and unit 2 discharges again. Since the battery unit 1 is inserted and fitted with the discharge unit 2, it is convenient to insert the battery unit 1 on the discharge unit 2 or pull it out from the discharge unit 2. When the user needs to charge the electric vehicle, make the connecting lock 32 in the unlocked state earlier, then slide the group battery unit 1 to break away from base 31, play the effect of economize on power to the user need not place group battery unit 1 on the electric vehicle and charges, improves the convenience of dismantling group battery unit 1. When a user needs to install the battery unit 1 on the electric vehicle, the connecting lock 32 is in an unlocking state, then the battery unit 1 is in sliding fit with the base 31 in the preset direction, namely, the battery unit 1 cannot move in a direction different from the preset direction, and then the connecting lock 32 is in a locking state, so that the battery unit 1 is fixed on the electric vehicle.
Further, referring to fig. 2, fig. 3 and fig. 4, as a specific embodiment of the battery module of the electric vehicle provided by the present invention, the connecting lock 32 includes a lock body 321, a lock cylinder 322, a lock tongue 323 and an elastic member (not shown in the drawings);
one end of the bolt 323 is positioned in the lock body 321, and the other end is positioned outside the lock body 321;
the bolt 323 is elastically connected with the lock body 321 through an elastic piece;
the lock core 322 is fixed in the lock body 321, connected with one end of the lock tongue 323 positioned in the lock body 321, and used for controlling the lock tongue 323 to be far away from the battery pack unit 1, the key hole 3221 of the lock core 322 is positioned outside the lock body 321 and avoids the battery pack unit 1, when the connecting lock 32 is in a locked state, one end of the lock tongue 323 positioned outside the lock body 321 is inserted in the battery pack unit 1 under the elastic force of the elastic member; when the connection lock 32 is in the unlocked state, the latch tongue 323 is away from the battery unit 1.
When a user needs to mount the battery unit 1 on the electric vehicle, the latch 323 moves into the lock body 321 against the elastic force of the elastic member, then the battery unit 1 slides on the base 31 along the preset direction, and then the connecting lock 32 is in a locked state, and at this time, one end of the latch 323 outside the lock body 321 is inserted into the battery unit 1 under the elastic force of the elastic member, so that the battery unit 1 is limited on the base 31. When the user needs to detach the battery pack unit 1 from the electric vehicle, a key matched with the key cylinder 322 is inserted into the key hole 3221, then the key cylinder 322 is operated to move the latch bolt 323 into the lock body 321 to move the latch bolt 323 away from the battery pack unit 1, and then the battery pack unit 1 is slid on the base 31 in a preset direction until the battery pack unit 1 is detached from the base 31. The key hole 3221 avoids the battery pack unit 1, and ensures that the key hole 3221 can be used normally.
Further, referring to fig. 2, 3 and 4, as a specific embodiment of the battery module of the electric vehicle provided by the present invention, the locking assembly 3 further includes a dovetail block 33, and the dovetail block 33 is fixed on the battery unit 1 or the base 31;
when the dovetail block 33 is fixed on the battery unit 1, the base 31 is provided with a first dovetail groove at least one end of which penetrates through the base 31, and the dovetail block 33 slides into the first dovetail groove from one end of which the first dovetail groove penetrates through the base 31;
or, when the dovetail block 33 is fixed to the base 31, the battery unit 1 is provided with a second dovetail groove having at least one end penetrating through the battery unit 1, and the dovetail block 33 slides into the second dovetail groove from the end of the second dovetail groove penetrating through the base 31.
The dovetail block 33 penetrates through one end of the base 31 from the first dovetail groove and slides into the first dovetail groove, so that the battery unit 1 and the base 31 are slidably fitted. Since the dovetail block 33 can only slide along the first dovetail groove after the dovetail block 33 enters the first dovetail groove, the battery pack unit 1 can slide in the preset direction.
The dovetail block 33 is slid into the second dovetail groove from the second dovetail groove through the end of the battery unit 1, and is slidably fitted to the base 31. Since the dovetail block 33 can only slide along the second dovetail groove after the dovetail block 33 enters the second dovetail groove, the battery unit 1 can slide in the preset direction.
Further, referring to fig. 2, fig. 3 and fig. 4, as a specific embodiment of the battery module of the electric vehicle provided by the present invention, the base 31 includes a bottom plate 311, a protection cover 312 and a locking cover 313;
the bottom plate 311 is fixed on the electric vehicle;
the protective cover 312 is fixed on the bottom plate 311 and avoids the electric vehicle, and a mounting hole 3121 is arranged on the protective cover 312;
the locking cover 313 is detachably connected to the bottom plate 311;
the bottom plate 311, the protective cover 312 and the lock cover 313 enclose to form a mounting cavity 314, the connecting lock 32 is located in the mounting cavity 314, the keyhole 3221 is located in the mounting hole 3121, and the latch bolt 323 is inserted into the lock cover 313.
The mounting hole 3121 facilitates insertion of a key into the key hole 3221. The mounting cavity 314 can be opened by removing the lock cover 313 from the bottom plate 311, thereby facilitating the mounting and dismounting of the attachment lock 32. The connecting lock 32 is installed in the installation cavity 314, which plays a role of protecting the connecting lock 32, so that the connecting lock 32 is not easy to be damaged. The bottom plate 311 facilitates the attachment of the attachment lock 32 to the electric vehicle. The protective cover 312 ensures that the keyhole 3221 avoids the electric vehicle and ensures the normal use of the keyhole 3221.
Specifically, the protective cover 312 is integrally connected to the base plate 311.
Further, referring to fig. 2, fig. 3 and fig. 4, as a specific embodiment of the battery module of the electric vehicle provided by the present invention, the lock body 321 is detachably fixed on the lock cover 313.
When the lock cover 313 is detached from the base plate 311, the lock body 321 is detached from the base plate 311 simultaneously with the lock cover 313; when the lock cover 313 is installed on the bottom plate 311, the lock body 321 can be located in the installation cavity 314, so that the lock body 321 is fixed on the bottom plate 311, and the convenience of installation and disassembly of the lock body 321 is improved.
Further, referring to fig. 2, fig. 3 and fig. 4, as a specific embodiment of the battery module of the electric vehicle provided by the present invention, the first dovetail groove includes a first groove 611 and a second groove 612, the first groove 611 is disposed on the protective cover 312 and penetrates through the protective cover 312, the second groove 612 is disposed on the lock cover 313 and has one end penetrating through the lock cover 313, the second groove 612 penetrates through one end of the lock cover 313 and is communicated with one end of the first groove 611, and the dovetail block 33 slides into the first dovetail groove from one end of the first groove 611 far away from the second groove 612.
When the lock cover 313 is fixed to the base plate 311, the first groove 611 and the second groove 612 communicate, so that the first dovetail groove is easily provided on both the lock cover 313 and the protection cover 312, and the first dovetail groove is easily provided by the lock cover 313 and the protection cover 312.
Further, referring to fig. 2, fig. 3 and fig. 4, as a specific embodiment of the battery module of the electric vehicle provided by the present invention, a guiding surface 3231 is disposed at one end of the locking tongue 323 located outside the lock body 321, and when the battery unit 1 slides on the base 31, the battery unit 1 contacts the guiding surface 3231 and drives the locking tongue 323 to move toward the lock body 321.
When the battery unit 1 moves from the second preset position to the first preset position, the guide surface 3231 facilitates the bolt 323 to automatically move into the lock body 321, so that the bolt 323 does not obstruct the battery unit 1 from moving in the preset direction, and the user does not need to control the bolt 323 to move into the lock body 321 with hands, thereby improving the convenience of installing the battery unit 1.
Further, referring to fig. 2, fig. 3 and fig. 5, as a specific embodiment of the battery module of the electric vehicle provided by the present invention, the battery unit 1 includes a housing 11, a charging and discharging protection circuit board 12, a battery pack 14 and a discharging terminal 13, and the discharging unit 2 includes a discharging shell 21, a plurality of positive conducting strips 22 and a plurality of negative conducting strips 23;
the charge and discharge protection circuit board 12 and the battery pack 14 are fixed in the case 11;
the discharging terminal 13 includes a fixed base 131, a negative input terminal 132, a positive input terminal 133, a plurality of positive output terminals 134 and a plurality of negative output terminals 135, wherein the negative input terminal 132, the positive input terminal 133, the plurality of positive output terminals 134 and the plurality of negative output terminals 135 are disposed on the fixed base 131;
the fixing seat 131 is fixed on the housing 11
The negative input end 132 is connected to the discharge end of the charge and discharge protection circuit board 12, the positive input end 133 is connected to the positive end of the battery pack 14, one end of each negative output end 135 is simultaneously connected to the negative input end 132, and one end of each positive output end 134 is simultaneously connected to the positive input end 133;
each positive conducting strip 22 and each negative conducting strip 23 are fixed on the discharge shell 21, one end of each positive conducting strip 22 and one end of each negative conducting strip 23 are located in the discharge shell 21, the other end of each positive conducting strip 22 and the other end of each negative conducting strip 23 are located outside the discharge shell 21, each positive output end 134 corresponds to each positive conducting strip 22 one to one, each negative output end 135 corresponds to each negative conducting strip 23 one to one, one end of each positive conducting strip 22 located outside the discharge shell 21 and one end of each negative conducting strip 23 located outside the discharge shell 21 are used for being inserted on the fixing base 131, one end of each positive conducting strip 22 inserted on the fixing base 131 is in contact with the other end of the corresponding positive output end 134, and one end of each negative conducting strip 23 inserted on the fixing base 131 is in contact with the other end of the corresponding negative output end 135.
The case 11 plays a role of protecting the charge and discharge protection circuit board 12, so that the charge and discharge protection circuit board 12 is not easily damaged. The discharge case 21 functions to mount the plurality of positive electrode conductive sheets 22 and the plurality of negative electrode conductive sheets 23. When the battery unit 1 is discharged, the positive conductive sheet 22 and the negative conductive sheet 23 discharge electricity, which is beneficial to reducing the discharge impedance of the battery unit 1 and realizing large-current discharge of the battery unit 1. The positive conductive sheets 22 and the negative conductive sheets 23 are inserted into the holders 131 to fix the discharge unit 2 to the battery unit 1. The discharge terminal 13 is a discharge end of the battery unit 1.
Specifically, the charge and discharge protection circuit board 12 is set to BMS. The BMS includes a circuit board 121, a battery connection port 122, a charge and discharge control circuit 123, a charge and discharge protection circuit 124, a charge terminal 125, and a discharge port 126, and the discharge port 126, the battery connection port 122, the circuit board 121, the charge and discharge control circuit 123, the charge and discharge protection circuit 124, and the charge terminal 125 are disposed on the circuit board 121. The charging terminal 125 is electrically connected to a charging connector 7, the charging connector 7 is disposed in the housing 11 and has one end extending out of the housing 11, and one end of the charging connector 7 located out of the housing 11 is used for connecting external power. When external power is connected, the external power may charge the battery pack 14. The battery pack 14 includes a plurality of lithium battery cells connected together. The negative terminal of the battery pack 14 is connected to the battery connection port 122 of the BMS, and the positive terminal of the battery pack 14 is connected to the battery connection port 122 of the charging connector 7. The negative input 132 is connected to the discharge port 126.
Optimally, two positive electrode output ends 134, two negative electrode input ends 132, two positive electrode conductive sheets 22 and two negative electrode conductive sheets 23 are arranged.
Specifically, the electric vehicle battery module further includes a charging switch 9, and the charging switch 9 is connected in series between the positive terminal of the battery pack 14 and the battery connection port 122 of the charging connector 7. The charging switch 9 is used to control the connection or disconnection of the positive terminal of the battery pack 14 and the battery connection port 122 of the charging connector 7. The charging switch 9 is provided on the housing 11.
Preferably, the charging switch 9 is a key switch, a terminal of the key switch is located in the housing 11, and a pressing portion of the key switch is located outside the housing 11.
Further, please refer to fig. 2, fig. 3 and fig. 5, as a specific embodiment of the present invention, the discharging shell 21 includes a mounting seat 211 and an insulating discharging seat 212, the discharging seat 212 is disposed on the mounting seat 211, a fixing cavity 213 is formed between the discharging seat 212 and the mounting seat 211, each of the positive conducting strips 22 and the negative conducting strips 23 is disposed through the discharging seat 212, and the fixing cavity 213 is used for mounting the controller 8 of the electric vehicle.
When the positive conducting strip 22 and the negative conducting strip 23 are discharged, the discharging seat 212 is not conductive, and the safe use of the battery module of the electric vehicle is improved. The controller 8 of the electric vehicle is mounted in the fixing chamber 213 so that the battery unit 1 supplies power to the controller 8 through the positive conductive sheet 22 and the negative conductive sheet 23.
Specifically, the controller 8 is used to control the starting, running, advancing and retreating, speed, and stopping of the motor. The mounting seat 211 is provided with a wire guide 2111, and the wire guide 2111 is used for passing a conductive wire for connecting the controller 8.
Further, please refer to fig. 2, fig. 3 and fig. 5, as a specific embodiment of the present invention, the battery module of the electric vehicle further includes a positive electrode wire 4 and a negative electrode wire 5, one end of each positive electrode conducting strip 22 located in the fixing cavity 213 is connected to the positive electrode wire 4, and one end of each negative electrode wire 5 located in the fixing cavity 213 is connected to the negative electrode wire 5.
The battery unit 1 discharges electricity through the positive electrode lead 4 and the negative electrode lead 5, thereby improving the convenience of use of the battery module of the electric vehicle.
The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.
Claims (10)
1. An electric vehicle battery module comprising a battery unit for charging and discharging and a discharge unit for discharging, wherein a power transmission terminal of the discharge unit is inserted on a discharge terminal of the battery unit, the electric vehicle battery module further comprising a locking assembly that avoids the power transmission terminal of the discharge unit and the discharge terminal of the battery unit;
the locking assembly comprises a base and a connecting lock;
the base is used for being fixed on the electric vehicle, and the battery pack unit is in sliding fit with the base in a preset direction;
the connecting lock is fixed on the base;
the connection lock has a locking state and an unlocking state, and when the connection lock is in the locking state, the battery pack unit is limited on the base; when the connection lock is in the unlocked state, the battery unit may be slid to disengage from the base.
2. The battery module as claimed in claim 1, wherein the connection lock comprises a lock body, a lock cylinder, a latch bolt and an elastic member;
one end of the lock tongue is positioned in the lock body, and the other end of the lock tongue is positioned outside the lock body;
the lock tongue is elastically connected with the lock body through the elastic piece;
the lock core is fixed in the lock body, connected with one end of the lock bolt in the lock body and used for controlling the lock bolt to be far away from the battery pack unit, a key hole of the lock core is positioned outside the lock body and avoids the battery pack unit, and when the connecting lock is in a locking state, one end of the lock bolt, which is positioned outside the lock body, is inserted in the battery pack unit under the elastic force of the elastic piece; when the connecting lock is in the unlocking state, the lock tongue is far away from the battery pack unit.
3. An electric vehicle battery module as defined in claim 2, wherein the locking assembly further comprises a dovetail block secured to the battery pack unit or the base;
when the dovetail block is fixed on the battery pack unit, the base is provided with a first dovetail groove at least one end of which penetrates through the base, and the dovetail block penetrates through one end of the base from the first dovetail groove and slides into the first dovetail groove;
or when the dovetail block is fixed on the base, the battery pack unit is provided with a second dovetail groove at least one end of which penetrates through the battery pack unit, and the dovetail block slides into the second dovetail groove from one end of the second dovetail groove penetrating through the base.
4. The battery module of claim 3, wherein the base comprises a base plate, a protective cover, and a locking cover;
the bottom plate is fixed on the electric vehicle;
the protective cover is fixed on the bottom plate and avoids the electric vehicle, and a mounting hole is formed in the protective cover;
the locking cover is detachably connected to the bottom plate;
the bottom plate, the visor with the locking closure encloses and closes and form an installation cavity, the connection lock is located the installation cavity, the key hole is located in the mounting hole, the spring bolt is worn to locate the locking closure.
5. The battery module as recited in claim 4, wherein the lock body is detachably secured to the lock cover.
6. An electric vehicle battery module as recited in claim 4, wherein the first dovetail slot includes a first slot and a second slot, the first slot is disposed on the protective cover and extends through the protective cover, the second slot is disposed on the locking cover and has an end extending through the locking cover, the second slot extends through an end of the locking cover and communicates with an end of the first slot, and the dovetail block slides into the first dovetail slot from an end of the first slot remote from the second slot.
7. The battery module of claim 2, wherein the end of the latch tongue outside the lock body is provided with a guide surface, and when the battery unit slides on the base, the battery unit contacts the guide surface and drives the latch tongue to move into the lock body.
8. The battery module of claim 1, wherein the battery pack unit comprises a housing, a charge and discharge protection circuit board, a battery pack, and a discharge terminal, and the discharge unit comprises a discharge case, a plurality of positive conductive sheets, and a plurality of negative conductive sheets;
the charging and discharging protection circuit board and the battery pack are fixed in the shell;
the discharge terminal comprises a fixed seat, a negative electrode input end, a positive electrode input end, a plurality of positive electrode output ends and a plurality of negative electrode output ends, and the negative electrode input end, the positive electrode input end, the plurality of positive electrode output ends and the plurality of negative electrode output ends are arranged on the fixed seat;
the fixed seat is fixed on the shell;
the negative input end is connected with the discharge end of the charge-discharge protection circuit board, the positive input end is connected with the positive end of the battery pack, one end of each negative output end is simultaneously connected with the negative input end, and one end of each positive output end is simultaneously connected with the positive input end;
each positive conducting plate and each negative conducting plate are fixed on the discharge shell, one end of each positive conducting plate and one end of each negative conducting plate are located in the discharge shell, the other end of each positive conducting plate and the other end of each negative conducting plate are located outside the discharge shell, each positive output end corresponds to each positive conducting plate one to one, each negative output end corresponds to each negative conducting plate one to one, one end of each positive conducting plate located outside the discharge shell and one end of each negative conducting plate located outside the discharge shell are used for being inserted into the fixing seat, one end of each positive conducting plate inserted into the fixing seat is in contact with the other end of the corresponding positive output end, and one end of each negative conducting plate inserted into the fixing seat is in contact with the other end of the corresponding negative output end.
9. The battery module of claim 8, wherein the discharge casing comprises a mounting seat and an insulated discharge seat, the discharge seat is disposed on the mounting seat, a fixed cavity is formed between the discharge seat and the mounting seat, each of the positive conductive sheet and the negative conductive sheet is inserted into the discharge seat, and a controller of the electric vehicle is mounted in the fixed cavity.
10. The electric vehicle battery module of claim 9, further comprising a positive lead and a negative lead, wherein one end of each positive conductive piece located in the fixing cavity is connected to the positive lead, and one end of each negative conductive piece located in the fixing cavity is connected to the negative lead.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020699237.4U CN212373596U (en) | 2020-04-29 | 2020-04-29 | Battery module of electric vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020699237.4U CN212373596U (en) | 2020-04-29 | 2020-04-29 | Battery module of electric vehicle |
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| CN212373596U true CN212373596U (en) | 2021-01-19 |
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| CN202020699237.4U Active CN212373596U (en) | 2020-04-29 | 2020-04-29 | Battery module of electric vehicle |
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