A highly integrated battery lock-eject mechanism within a charging cabinet

Abstract

The utility model relates to a kind of battery locking ejection mechanism in highly integrated charging cabinet, it is to solve the technical problem that the production assembly cost is higher due to the integrated design of the lack of battery cabin shell rear part through sheet metal support mode to realize both sides lock body, and lock hook and corresponding component of similar product of existing, its main point is that the sheet metal support of the battery locking ejection mechanism is set in the rear part of battery cabin shell in charging cabinet, the other end of the lock catch plate of the inside diameter both sides of sheet metal support is respectively connected with the both ends of sheet metal support inner connecting plate, the middle of connecting plate is connected with the moving iron core of electromagnet, and electromagnet is fixedly arranged on the outside or inside of sheet metal support;The hook part side of lock catch plate is respectively fixed in the inside diameter swing of sheet metal support by screw hinged, and second tension spring is equipped at tail portion, the outside diameter both sides of the lock catch plate of sheet metal support are respectively equipped with ejector rod, sheet metal support is stamped and protruded to be U-shaped plate piece from the rear part both sides of battery cabin shell to middle, and the screw of lock catch plate and hook part side is equipped with switch paddle.

Description

Technical Field

[0001] This utility model relates to a lock for batteries inside a charging cabinet, which is a highly integrated battery locking and ejection mechanism inside a charging cabinet. Background Technology

[0002] Shared new energy battery cabinets, also known as shared battery swapping cabinets, are a form of existing charging cabinets. They are centralized, unattended, intelligent cabinet-style devices that store multiple fully charged standardized lithium batteries. Users can scan a QR code via a mobile app or mini-program to retrieve a fully charged battery and return the depleted battery from their vehicle, enabling quick battery replacement and alleviating range anxiety. Simultaneously, they solve the range and charging problems of urban light electric vehicles, making them popular with frequent users such as food delivery and courier services. With technological maturity, market expansion, and policy support, they are expected to become an important component of new urban infrastructure, possessing enormous future development potential. Existing charging cabinets with locking hooks include patent application number 202320518841.6 disclosed in Chinese patent literature, authorized on August 1, 2023, with the utility model name "Reliable Multi-Compartment Battery Swapping Cabinet"; however, the above-mentioned products and similar products rarely use the rear external electromagnet (solenoid valve) to realize the swing unlocking of the locking hook and the simultaneous unlocking of the rear double locking body, and in particular, they rarely use the rear sheet metal bracket to realize the integrated installation and removal of the two locking bodies, locking hooks and corresponding components. Summary of the Invention

[0003] To overcome the aforementioned shortcomings, the purpose of this utility model is to provide a highly integrated battery locking and ejection mechanism for charging cabinets. This addresses the limitations of existing products that rarely utilize external rear electromagnets (solenoid valves) for unlocking by swinging the locking hook, or the simultaneous unlocking of the two rear locking bodies through linkage. In particular, it addresses the technical problem of rarely using rear sheet metal brackets to integrate and detach the locking bodies, locking hooks, and corresponding components on both sides. This objective is achieved through the following technical solution.

[0004] A highly integrated battery locking and ejection mechanism for a charging cabinet includes a sheet metal bracket located at the rear of the battery compartment shell. Symmetrically arranged on both sides of the inner diameter of the sheet metal bracket are locking plates that unlock by swinging or locking by impact. Hooks at one end of each locking plate extend from the front of the sheet metal bracket and simultaneously engage with a hook shaft or groove on the rear end shell of the battery within the battery compartment through a through-hole. A key structural design feature is that the other ends of the locking plates on both sides of the inner diameter of the sheet metal bracket are respectively connected to two connecting plates within the sheet metal bracket. The connecting plate is connected to the moving iron core of the electromagnet in the middle. The electromagnet is fixedly installed on the inner or outer side of the sheet metal bracket. One side of the middle of the connecting plate is connected to the moving iron core of the electromagnet. That is, when the connecting plate is higher than the sheet metal bracket, the electromagnet can also be fixedly installed on the outer side of the sheet metal bracket. One side of the hook of the locking plate is fixed to the inner diameter of the sheet metal bracket by screws. The other end of the second tension spring at the tail of the locking plate at one end of the connecting plate is connected to the tension spring post on the inner side of the sheet metal bracket. The outer diameter of the locking plate of the sheet metal bracket is provided with spring-loaded push rods on both sides. The limiting component for the telescopic movement of the above-mentioned limiting push rod is not limited to pins, but can also be a snap ring, limiting sleeve, etc. The guide ears on one side of the sheet metal bracket are symmetrically arranged or individually arranged to ensure the stable forward and backward movement of the push rod. The hinge fixing of the above-mentioned locking plate is not limited to screws, but can be achieved by rivets or pins to allow the locking plate to swing.

[0005] The direction of extension and retraction of the moving iron core of the electromagnet, and the connecting plate are located at the lower rear or upper rear of the battery compartment shell. The above structure is not limited to the lower setting; the upper setting can also be used. The lower setting facilitates the downward movement of the connecting plate by the gravity of the corresponding components, thereby achieving unlocking.

[0006] The outer diameter of the locking plate at the screw location is provided with a protruding edge, and at least one side of the sheet metal bracket above or below the protruding edge is provided with a limiting plate to restrict the swing amplitude of the locking plate.

[0007] The sheet metal bracket is formed by stamping U-shaped plates from both sides of the rear of the battery compartment shell towards the center. The tension spring posts, guide ears, spring plates, limiting plates, and corresponding mounting positions, post positions, holes, and through holes of the sheet metal bracket are formed by stamping the plate. Thus, the corresponding components can be easily installed and removed together using the sheet metal bracket.

[0008] The inner side of the screw of the latch plate is provided with a switch lever that fits the latch plate and is fixed to the inner side of the sheet metal bracket by the screw at one end. The screw of the switch lever and the other end are respectively provided with a first latch post and a second latch post that are clamped and fixed to the latch plate. The switch lever and the latch plate are integrated. The other end of the first tension spring at the screw hinge of one end of the switch lever is connected to the pin or through hole of the latch plate. The first tension spring and the second tension spring are aligned on one side. The other end of the switch lever is convenient to protrude from the groove at the hook of the latch plate. At least the lug on one side edge of the screw hinge of the switch lever or on one side edge of the outer diameter is aligned with or abuts against the moving spring of the micro switch provided on the latch plate.

[0009] The micro switch is mounted on one side of the latching plate via a switch housing. The moving spring of the micro switch extends out of an opening on one side of the switch housing, which is fixedly mounted on one side of the latching plate. The switch housing can be provided as needed to facilitate the fixed mounting of the micro switch on one side of the latching plate, or the switch housing can be omitted.

[0010] The other end of the first tension spring is connected to the protrusion of the switch housing, and the protrusion of the switch housing replaces the pin or through hole on one side of the latch plate.

[0011] The push rods are T-shaped, with the T-shaped end on one side of the battery compartment shell. One end of the push rod extends out of the sheet metal bracket and abuts against the rear of the battery inside the battery compartment shell. The other end of the push rod passes through the guide ears symmetrically arranged on both sides of the sheet metal bracket and abuts against one end of the spring. The other end of the spring is fixed to the spring plates on both sides of the outer diameter of the sheet metal bracket. At the same time, the push rods are fixed in the guide ears on the front side of the sheet metal bracket by the limiting member on one side of the outer diameter and move within them.

[0012] When the connecting plate extends above the sheet metal bracket and its middle side is connected to the moving iron core of the electromagnet, the locking plate is symmetrically arranged on the outer side of the sheet metal bracket, and the top rod and spring are symmetrically arranged on the inner side of the sheet metal bracket. The above is a structural design embodiment in which the inner and outer sides of the locking plate and top rod are interchanged.

[0013] The connecting plate may be replaced by a lever assembly, which is symmetrically arranged on both sides of the electromagnet. The moving iron core of the electromagnet is simultaneously hinged to one end of the lever assemblies on both sides. The connecting rods of the lever assemblies on both sides are sequentially hinged and connected as a whole. The other end of the lever assemblies on both sides is provided with a fixing pin, which abuts against the linkage pin at one end of the lever assembly of the locking plate for operation.

[0014] The lever assembly has open adjustment slots at the hinge joint of the connecting rod and at the hinge joint between the connecting rod and the moving iron core of the electromagnet. When the moving iron core of the electromagnet pulls down the lever assembly, the connecting rod at one end of the lever assembly acts as a secondary lever to drive the locking plate in conjunction; thereby reducing errors caused by assembly problems and preventing the locking plate from jamming.

[0015] This utility model has a reasonable structural design, is easy to assemble and install, simple to monitor, and has good stability. In particular, the double-lock body structure is easy to install and remove, has a high degree of overall integration, and has a good linkage effect of the locking plate. It is suitable for use as a battery locking and ejection mechanism in a highly integrated charging cabinet, and for structural improvements of similar products. Attached Figure Description

[0016] Figure 1 This is a partial exploded structural diagram of an embodiment of this utility model.

[0017] Figure 2 yes Figure 1 A magnified schematic diagram of the latch plate structure.

[0018] Figure 3 yes Figure 1 A schematic diagram of the assembled three-dimensional structure.

[0019] Figure 4 yes Figure 1 A schematic diagram of the inner side of the sheet metal bracket.

[0020] Figure 5 yes Figure 3 A schematic diagram of the usage state structure.

[0021] Figure 6 yes Figure 3 A schematic diagram of the improved structure.

[0022] Figure 7 yes Figure 6 A schematic diagram of the lever assembly in the open state.

[0023] Attached Figure Numbers and Names: 1. Sheet Metal Bracket, 101. Tension Spring Column, 102. Guide Ear, 103. Spring Sheet, 104. Limiting Plate, 2. Electromagnet, 3. Connecting Plate, 4. Locking Plate, 5. Micro Switch, 6. Switch Toggle, 601. First Snap-on Column, 602. Second Snap-on Column, 7. Pin, 8. Spring, 9. Top Rod, 10. First Tension Spring, 11. Switch Cover, 12. Second Tension Spring, 13. Screw, 14. Battery Compartment, 15. Toggle Assembly, 1501. Fixing Pin, 1502. Connecting Rod, 16. Linkage Pin. Detailed Implementation

[0024] The structure and use of this utility model will now be further described with reference to the accompanying drawings. Figures 1-5As shown, the sheet metal bracket 1 of the battery locking and ejection mechanism is located at the rear of the battery compartment shell inside the charging cabinet. The inner diameter of the sheet metal bracket is symmetrically provided with locking plates 4 that can be unlocked by swinging or locked by collision. The hook part of one end of the locking plate extends out of the front of the sheet metal bracket and simultaneously extends into the through hole at the rear of the battery compartment shell 14 to engage with the hook shaft on one side of the battery end shell at the rear of the battery inside the battery compartment shell. The other ends of the locking plates on both sides of the inner diameter of the sheet metal bracket are connected to the two ends of the inner connecting plate 3 of the sheet metal bracket, and the middle of the connecting plate is connected to the moving iron core of the electromagnet 2. The electromagnet is fixedly installed on the inner side of the sheet metal bracket. The hook side of the locking plate is hinged to the inner diameter of the sheet metal bracket by screws 13. The other end of the second tension spring 12 at the tail of the locking plate at one end of the connecting plate is connected to the tension spring column 101 on the inner side of the sheet metal bracket. The outer diameter of the locking plate of the sheet metal bracket is provided with push rods 9. One end of the push rod extends out of the sheet metal bracket and abuts against the rear of the battery in the battery compartment. The other end of the push rod passes through the through holes of the guide ears 102 symmetrically arranged on both sides of the sheet metal bracket and abuts against one end of the spring 8. The other end of the spring is fixed to the spring plate 103 on both sides of the outer diameter of the sheet metal bracket. At the same time, the push rod is fixed to the guide ear on the front side of the sheet metal bracket by the pin 7 on the outer diameter side and moves.

[0025] The extension and retraction direction of the moving iron core of the aforementioned electromagnet, and the connecting plate are located at the lower rear or upper rear of the battery compartment shell; the outer diameter of one side of the screw of the locking plate has a protruding edge, and the sheet metal brackets above and below the protruding edge are respectively provided with limiting plates 104 to limit the swing amplitude of the locking plate. The sheet metal bracket is a U-shaped plate stamped from both sides of the rear of the battery compartment shell towards the middle. The tension spring column, guide ear, spring plate, limiting plate, and corresponding mounting positions, column positions, hole positions and through holes of the sheet metal bracket are formed by stamping the plate. The top rods are T-shaped, and the end of the top rod on one side of the battery compartment shell is a T-shaped end.

[0026] The inner side of the screw joint of the aforementioned latching plate is provided with a switch lever 6 that fits against the latching plate and is simultaneously fixed to the inner side of the sheet metal bracket by one end of the screw. The screw joint and the other end of the switch lever are respectively provided with a first latching post 601 and a second latching post 602 that are tightly fixed to the latching plate. The switch lever and the latching plate are integrated. The other end of the first tension spring 10 at the screw hinge of one end of the switch lever is connected to a protrusion at the switch cover 11 on the outer side of the latching plate. The first tension spring and the second tension spring are aligned on one side. The other end of the switch lever extends beyond the groove at the hook of the latching plate. At least the lug on one edge of the screw hinge or one edge of the outer diameter of the switch lever is aligned with or abuts against the moving spring of the micro switch located on the latching plate. The micro switch is located on one side of the latching plate through the switch cover, and the moving spring of the micro switch extends out of the opening on one side of the switch cover. The switch cover is fixedly located on one side of the latching plate.

[0027] The locking and unlocking mechanism of the battery locking and ejection system operates as follows: When locking, the hook shaft at the rear of the battery engages with the latch plate. The switch lever rotates backward and activates the microswitch, which signals the power cabinet that the hook shaft is in position. When unlocking, the electromagnet is energized, pulling the connecting plate. The connecting plate pulls down the latch plates on both sides, disengaging them from the hook shaft at the rear of the battery. The battery is then ejected under the action of the push rod and spring.

[0028] Based on the above structural design, the inner and outer sides of the aforementioned locking plate and top rod can also be interchanged; it is only necessary to have the connecting plate extend above the sheet metal bracket and connect one of its middle sides to the moving iron core of the electromagnet. Meanwhile, if... Figure 6 and Figure 7 As shown, the connecting plate is replaced by a lever assembly 15. The lever assemblies are symmetrically arranged on both sides of the electromagnet. The moving iron core of the electromagnet is hinged to one end of each lever assembly. The connecting rods 1502 of the lever assemblies are sequentially hinged and connected as a single unit. The other end of each lever assembly is provided with a fixing pin 1501, which abuts against the linkage pin at one end of the lever assembly of the locking plate for actuation. Opening adjustment slots are provided at the hinge points of the lever assemblies and at the hinge points between the lever assemblies and the moving iron core of the electromagnet. Thus, the connecting plate is replaced by lever assemblies on both sides of the moving iron core of the electromagnet, and their linkage and actuation are achieved by the pins at their ends abutting against the pins at the end of the locking plate.

[0029] In summary, this battery locking and ejection mechanism, installed in the charging cabinet (electric vehicle battery swapping cabinet), is a mechanism used to lock and eject batteries. This battery locking and ejection mechanism adopts a highly integrated structural design, with all parts mounted on a sheet metal bracket, reducing redundant parts and lowering costs; in particular, the integrated design of the aforementioned sheet metal bracket achieves the above-mentioned technical objectives and effects. The electromagnet is located at the bottom of the lock, and when opened, it utilizes the gravity of some parts, making it easier to unlock.

Claims

1. A highly integrated battery locking and ejection mechanism for a charging cabinet, wherein a sheet metal bracket (1) of the battery locking and ejection mechanism is disposed at the rear of the battery compartment shell inside the charging cabinet, and symmetrically provided on both sides of the inner diameter of the sheet metal bracket are locking plates (4) that are unlocked by swinging or locked by collision, and the hooks at one end of the locking plates extend out of the front of the sheet metal bracket and simultaneously extend into the through hole at the rear of the battery compartment shell (14) to engage with the hook shaft or hook groove on one side of the battery end shell at the rear of the battery in the battery compartment shell; characterized in that The other ends of the locking plates (4) on both sides of the inner diameter of the sheet metal bracket (1) are respectively connected to the two ends of the inner connecting plate (3) of the sheet metal bracket. The middle of the connecting plate is connected to the moving iron core of the electromagnet (2). The electromagnet is fixedly set on the outer or inner side of the sheet metal bracket. The middle side of the connecting plate is connected to the moving iron core of the electromagnet. The hook side of the locking plate is respectively hinged to the inner diameter of the sheet metal bracket by screws (13). The other end of the second tension spring (12) at the tail of the locking plate at one end of the connecting plate is respectively connected to the tension spring column (101) on the inner side of the sheet metal bracket. The locking plate of the sheet metal bracket is provided with top rods (9) on both sides of the outer diameter.

2. The highly integrated battery locking and ejection mechanism in the charging cabinet according to claim 1, characterized in that... The direction of extension and retraction of the moving iron core of the electromagnet (2) and the connecting plate (3) are located below or above the rear of the battery compartment shell (14).

3. The highly integrated battery locking and ejection mechanism in the charging cabinet according to claim 1, characterized in that... The outer diameter of the screw (13) of the latch plate (4) is provided with a protruding edge, and the sheet metal bracket (1) above or below the protruding edge is provided with a limiting plate (104) on at least one side to limit the swing amplitude of the latch plate.

4. The highly integrated battery locking and ejection mechanism in the charging cabinet according to claim 3, characterized in that... The sheet metal bracket (1) is formed by stamping a U-shaped plate from the rear two sides of the battery compartment shell (14) towards the middle. The tension spring column (101), guide ear (102), spring plate (103), limiting plate (104), and corresponding mounting position, column position, hole position and through hole of the sheet metal bracket are formed by stamping the plate.

5. The highly integrated battery locking and ejection mechanism in the charging cabinet according to claim 1, characterized in that... The inner side of the screw (13) of the latch plate (4) is provided with a switch plate (6) that fits the latch plate and is fixed to the inner side of the sheet metal bracket (1) by the screw at one end. The screw of the switch plate and the other end are respectively provided with a first snap post (601) and a second snap post (602) that are clamped and fixed to the latch plate. The switch plate is integrated with the latch plate. The other end of the first tension spring (10) at the screw hinge of one end of the switch plate is connected to the pin or through hole of the latch plate. The first tension spring and the second tension spring (12) are aligned on one side. The other end of the switch plate is convenient to be higher than the groove at the hook of the latch plate. At least the lug on one side edge of the screw hinge of the switch plate or the outer diameter edge of the switch plate is aligned or abutted with the moving spring of the micro switch (5) provided on the latch plate.

6. The highly integrated battery locking and ejection mechanism in the charging cabinet according to claim 5, characterized in that... The micro switch (5) is mounted on one side of the latch plate (4) through a switch cover (11). The moving spring of the micro switch extends out of the opening on one side of the switch cover, and the switch cover is fixedly mounted on one side of the latch plate.

7. The highly integrated battery locking and ejection mechanism in the charging cabinet according to claim 6, characterized in that... The other end of the first tension spring (10) is connected to the protrusion of the switch cover (11), and the protrusion of the switch cover replaces the pin or through hole on one side of the latch plate.

8. The highly integrated battery locking and ejection mechanism in the charging cabinet according to claim 1, characterized in that... The top rods (9) are T-shaped. The top rod end on one side of the battery compartment shell (14) is a T-shaped end. One end of the top rod extends out of the sheet metal bracket and abuts against the rear of the battery in the battery compartment shell. The other end of the top rod passes through the through holes of the guide ears (102) symmetrically arranged on both sides of the sheet metal bracket and abuts against one end of the spring (8). The other end of the spring is fixed to the spring plates (103) on both sides of the outer diameter of the sheet metal bracket. At the same time, the top rods are fixed in the guide ears on the front side of the sheet metal bracket by the limiting member on one side of the outer diameter and move.

9. The highly integrated battery locking and ejection mechanism in the charging cabinet according to claim 1, characterized in that... The connecting plate (3) may be replaced by a lever assembly (15). The lever assembly is symmetrically arranged on both sides of the electromagnet (2). The moving iron core of the electromagnet is simultaneously hinged to one end of the lever assembly on both sides. The connecting rods (1502) of the lever assembly on both sides are sequentially hinged and connected as a whole. The other end of the lever assembly on both sides is provided with a fixing pin (1501). The fixing pin is abutted against the linkage pin (16) at one end of the lever assembly of the latch plate (4) for operation.

10. The highly integrated battery locking and ejection mechanism in the charging cabinet according to claim 9, characterized in that... The connecting rod (1502) of the lever assembly (15) is provided with an opening adjustment groove at the hinge joint and the connecting rod of the lever assembly is provided with the moving iron core of the electromagnet (2).

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