Battery tray with cap plate

Abstract

The utility model belongs to the technical field of batteries, and particularly relates to a battery tray with a cap plate. The cover cap plate detachably covers the top side of the battery tray, and a plurality of positioning buckle structures are arranged between the cover cap plate and the battery tray to realize detachable matching. According to the battery tray, the cover cap plate is detachably connected to the top side of the battery tray through the positioning buckle structure, so that the cover cap plate can be quickly detached from the battery tray on a logistics line, and batteries with open top sides in the battery tray can conveniently flow into a subsequent process.

Description

Technical Field

[0001] This application belongs to the field of battery technology, and in particular relates to a battery tray with a cap plate. Background Technology

[0002] During battery production, battery trays are used to hold batteries and facilitate their movement on the logistics line. In some applications, caps are needed to cover the top of the battery tray. For example, if the battery is open before being sealed, a cap is used to secure it to the cap plate, pressing down on the open end to seal the battery and prevent electrolyte evaporation and external impurities from flowing into the battery.

[0003] During the transfer process, batteries need to be picked up and put into the battery tray using a loading and unloading device. This requires the cap plate to be removed from the battery tray. However, the existing cap plate is difficult to remove from the battery tray quickly. Utility Model Content

[0004] This application provides a battery tray with a cap plate to solve the technical problem of difficulty in quickly disassembling the cap plate from the battery tray.

[0005] According to one aspect of this application, a battery tray with a cap plate is provided, the cap plate being detachably covered on the top side of the battery tray, and a plurality of positioning snap-fit ​​structures are provided between the cap plate and the battery tray to achieve a detachable engagement.

[0006] In an optional embodiment of this application, the positioning latch structure includes a positioning pin and a ball-locking cylinder assembly. The positioning pin is connected to the cap plate and has a limiting groove formed on its outer peripheral wall; the ball-locking cylinder assembly is connected to the battery tray and includes a plurality of balls arranged at circumferential intervals. The ball-locking cylinder assembly has a pin hole that allows the positioning pin to pass through and is configured to switch between an unlocked state and a locked state; in the locked state, each ball is confined in the limiting groove to lock the positioning pin; in the unlocked state, each ball can disengage from the limiting groove to allow the positioning pin to be pulled out from the pin hole.

[0007] In an optional embodiment of this application, the periphery of the cap plate is provided with multiple adapter blocks, each adapter block being connected to a positioning pin; the periphery of the battery tray is formed with mounting holes, and a ball lock cylinder assembly is inserted into the mounting holes.

[0008] In an optional embodiment of this application, the tumbler lock cylinder assembly includes a tumbler fixing cylinder, a locking block cylinder, and an elastic element. At least a portion of the tumbler fixing cylinder and the locking block cylinder are inserted into the mounting hole. The tumbler fixing cylinder has an axially extending pin hole and a plurality of tumbler holes arranged circumferentially and communicating with the pin hole, each tumbler hole being provided with a tumbler. The locking block cylinder is sleeved on the tumbler fixing cylinder and forms an annular cavity with the tumbler fixing cylinder. The locking block cylinder can move axially relative to the tumbler fixing cylinder. The elastic element is disposed in the annular cavity and sleeved on the tumbler fixing cylinder. In the unlocked state, the locking block cylinder moves to the unlocked position and compresses the elastic element. In the locked state, the elastic element rebounds and springs the locking block cylinder back to the locked position.

[0009] In an optional embodiment of this application, the locking cylinder is provided with a boss, which protrudes inward and fits against the outer peripheral wall of the ball fixing cylinder; the two axial sides of the boss are respectively an annular cavity section and a clearance hole section, and the annular cavity section cooperates with the outer peripheral wall of the ball fixing cylinder to form an annular cavity; in the unlocked state, the ball hole is located in the clearance hole section, and in the locked state, the ball hole is covered by the boss.

[0010] In an optional embodiment of this application, the inner axial end of the ball retaining cylinder is formed with a first step and a second step arranged side by side; the first step is located on the side of the second step near the annular cavity, the second step protrudes radially from the first step, and the inner axial end of the locking block cylinder is sleeved on the first step; the distance between the inner axial end sidewall of the locking block cylinder and the outer axial end sidewall of the second step is L1, and the distance between the outer axial end sidewall of the boss and the innermost part of the peripheral wall of the ball hole is L2, where L1 is not less than L2.

[0011] In an optional embodiment of this application, the lock block cylinder has radially extending ear plates on opposite sides of its axial outer end, and the ear plates are located outside the mounting hole; when the cap plate covers the battery tray, the ear plates on both sides project axially onto the sides of the adapter block.

[0012] In an optional embodiment of this application, the limiting groove is an annular groove with a cross-sectional shape that gradually narrows radially from the outside to the inside.

[0013] In an optional embodiment of this application, the cross-sectional shape of the inner axial end of the positioning pin is gradually tapered in the axial direction from the outside to the inside.

[0014] In the optional embodiments of this application, the cap plate is a rectangular plate and the battery tray is a rectangular body; the number of adapter blocks on each side of the cap plate is at least one, and the number of mounting holes on each side wall of the battery tray is at least one.

[0015] In summary, the battery tray with a cap provided in this application has at least the following beneficial effects:

[0016] The battery tray with a cap provided in this application has a positioning buckle structure between the cap and the battery tray. The cap can be detachably connected to the top side of the battery tray through the positioning buckle structure. In this way, the cap can be quickly removed from the battery tray on the logistics line, which facilitates the flow of batteries with the open top side of the battery tray into subsequent processes. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the specific embodiments of this application or the prior art, the accompanying drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this application; those skilled in the art can obtain other drawings based on these drawings without any creative effort.

[0018] Figure 1 This is a schematic diagram of a battery tray with a cap plate according to one embodiment of this application;

[0019] Figure 2 for Figure 1 A schematic diagram of a battery tray with a cap plate from another perspective;

[0020] Figure 3 for Figure 2 Sectional view at point AA;

[0021] Figure 4 for Figure 1 A magnified view of a section at point S1;

[0022] Figure 5 for Figure 3 A magnified view of a section at point S2.

[0023] The attached figures are labeled as follows:

[0024] 100. Positioning buckle structure;

[0025] 10. Positioning pin; C. Limiting slot;

[0026] 20. Tumbler lock cylinder assembly; 21. Tumbler; 22. Tumbler fixing cylinder; 221. First step; 222. Second step; H1. Pin hole; H2. Tumbler hole; 23. Lock block cylinder; 231. Boss; 232. Ear plate; H3. Clearance hole section; 24. Elastic element; R. Ring cavity;

[0027] 300, Cap plate; 310, Adapter block; 400, Battery tray; 410, Plug block; H4, Mounting hole. Detailed Implementation

[0028] In the description of this application, features specified with "first" or "second" are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Features specified with "first" or "second" may explicitly or implicitly include at least one of the specified features. The use of the term "multiple" generally means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0029] In this application, unless otherwise explicitly specified and limited, terms such as "installation," "connection," "joining," and "fixing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can be a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0030] In the description of this specification, the terms "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that the specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0031] Figure 1 This is a schematic diagram of a battery tray 400 with a cap plate 300 according to one embodiment of this application. Figure 2 for Figure 1 A schematic diagram of the battery tray 400 with a cap plate 300 from another perspective. Figure 3 for Figure 2 Sectional view at point AA.

[0032] Please see Figures 1 to 3 The cap plate 300 is detachably covered on the top side of the battery tray 400, and multiple positioning buckle structures 100 are provided between the cap plate 300 and the battery tray 400 to achieve detachable engagement.

[0033] In this embodiment, the battery tray 400 is used to hold batteries, and the cap plate 300 covers the top side of the battery tray 400 and is provided with multiple caps to cover and press down the top openings of each battery in the battery tray 400.

[0034] The battery tray 400 with a cap plate 300 includes a positioning latch structure 100 connected between the cap plate 300 and the battery tray 400 to enable a detachable connection between the cap plate 300 and the battery tray 400. Specifically, the positioning latch structure 100 allows the cap plate 300 to be detachably mounted on the top side of the battery tray 400, enabling quick removal of the cap plate 300 from the battery tray 400 on the logistics line, facilitating the flow of batteries with open top sides from the battery tray 400 into subsequent processes.

[0035] Figure 4 for Figure 1 A magnified view of a section at S1. Figure 5 for Figure 3 A magnified view of a section at S2. Please refer to [link / reference]. Figure 4 and Figure 5 In some alternative embodiments, the positioning latch structure 100 includes a positioning pin 10 and a ball lock cylinder assembly 20.

[0036] The positioning pin 10 is connected to the cap plate 300 and a limiting groove C is formed on its outer peripheral wall. The ball lock cylinder assembly 20 is connected to the battery tray 400 and includes a plurality of circumferentially spaced balls 21. The ball lock cylinder assembly 20 has a pin hole H1 that allows the positioning pin 10 to pass through and includes a plurality of balls 21. The plurality of balls 21 are spaced apart axially, and the ball lock cylinder assembly 20 is configured to switch between an unlocked state and a locked state.

[0037] In the locked state, each pin 21 is confined to the limiting slot C to lock the positioning pin 10; in the unlocked state, each pin 21 can disengage from the limiting slot C to allow the positioning pin 10 to be pulled out from the pin hole H1.

[0038] In this embodiment, a detachable connection is achieved through a positioning buckle structure 100. The positioning pin 10 is disposed on the cap plate 300, and the ball lock cylinder assembly 20 is disposed on the battery tray 400. This is mainly achieved through the detachable cooperation between the positioning pin 10 and the ball lock cylinder assembly 20.

[0039] The positioning pin 10 has a limiting slot C, and the ball lock cylinder assembly 20 has a pin hole H1 and a plurality of balls 21 arranged at circumferential intervals. The positioning pin 10 is inserted into the pin hole H1, and these balls 21 can cooperate with the limiting slot C.

[0040] Specifically, when the pin tumbler lock cylinder assembly 20 is in the locked state, each pin 21 cannot disengage from the limiting slot C, thereby locking the positioning pin 10 in the pin hole H1. When the pin tumbler lock cylinder assembly 20 is in the unlocked state, each pin 21 can disengage from the limiting slot C, and since there is no constraint of the pin 21 on the positioning pin 10, the positioning pin 10 can be pulled out from the pin hole H1.

[0041] Thus, by switching the state of the pin tumbler lock cylinder assembly 20, the positioning pin 10 can be disengaged from the pin tumbler lock cylinder assembly 20. Correspondingly, for the cap plate 300 equipped with the positioning pin 10 and the battery tray 400 equipped with the pin tumbler lock cylinder assembly 20, inserting the positioning pin 10 at the adapter block 310 into the pin hole H1 in the pin tumbler lock cylinder assembly 20 at the adapter block 410 allows the cap plate 300 to be placed on top of the battery tray 400, at which point the pin tumbler lock cylinder assembly 20 is in a locked state. Switching the pin tumbler lock cylinder assembly 20 to the unlocked state releases the locking of the positioning pin 10, allowing the cap plate 300 to be removed from the battery tray 400, thus achieving quick disassembly of the cap plate 300 and the battery tray 400, and enabling a detachable connection between the cap plate 300 and the battery tray 400.

[0042] In a further alternative embodiment, the cap plate 300 has multiple adapter blocks 310 on its periphery, each adapter block 310 being connected to a positioning pin 10. The battery tray 400 has multiple mounting holes H4 on its periphery, and a ball-loaded locking cylinder assembly 20 is inserted into the mounting holes H4.

[0043] In this embodiment, the cap plate 300 has multiple adapter blocks 310, which surround the periphery of the cap plate 300 and are used to install the positioning pins 10 in the positioning buckle structure 100. Each adapter block 310 is equipped with a corresponding positioning pin 10. In specific applications, the positioning pins 10 and adapter blocks 310 can be fixedly connected by screws (e.g., bolts, screws).

[0044] Accordingly, the battery tray 400 has a plurality of mounting holes H4 surrounding the periphery of the battery tray 400 for inserting the ball lock cylinder assembly 20 in the positioning snap structure 100.

[0045] In specific applications, the battery tray 400 has multiple plug-in blocks 410 on its periphery. The number of plug-in blocks 410 and adapter blocks 310 are equal and can be aligned one by one. Each plug-in block 410 has a mounting hole H4 and a corresponding ball lock cylinder assembly 20 is installed. By aligning the adapter block 310 and the plug-in block 410, the positioning pin 10 can cooperate with the ball lock cylinder assembly 20 to achieve a detachable connection between the cap plate 300 and the battery tray 400.

[0046] It should be noted that in this application, "axial," "radial," and "circumferential" can be determined based on the orientation of the positioning pin 10. Axial direction refers to the length direction of the positioning pin 10, radial direction refers to the direction of the diameter of the positioning pin 10, and circumferential direction refers to the circumference of the positioning pin 10. The "inner" and "outer" relationship in the axial direction means that the end of the positioning pin 10 inserted into the pin hole H1 is the inner end, and the other end is the outer end. The "inner" and "outer" relationship in the radial direction means that the end closer to the axis is the inner end, and the end farther from the axis is the outer end.

[0047] In a further optional embodiment, the ball bearing locking cylinder assembly 20 includes a ball bearing retaining cylinder 22, a locking block cylinder 23, and an elastic element 24. At least a portion of the ball bearing retaining cylinder 22 and the locking block cylinder 23 are inserted into the mounting hole H4. The ball bearing retaining cylinder 22 has an axially extending pin hole H1 and a plurality of ball bearing holes H2 arranged circumferentially and communicating with the pin hole H1. Each ball bearing hole H2 is provided with a ball 21.

[0048] The locking block 23 is sleeved on the ball fixing cylinder 22 and forms an annular cavity R with the ball fixing cylinder 22. The locking block 23 can move axially relative to the ball fixing cylinder 22. The elastic element 24 is disposed in the annular cavity R and sleeved on the ball fixing cylinder 22.

[0049] In the unlocked state, the locking cylinder 23 moves to the unlocked position and compresses the elastic element 24; in the locked state, the elastic element 24 rebounds and springs the locking cylinder 23 back to the locked position.

[0050] In this embodiment, the ball lock cylinder assembly 20 further includes a ball fixing cylinder 22, a locking block cylinder 23, and an elastic element 24. A pin hole H1 is formed in the ball fixing cylinder 22, and a plurality of ball holes H2 are provided on the peripheral sidewall of the ball fixing cylinder 22. Balls 21 are installed in these ball holes H2 and are all connected to the pin hole H1.

[0051] The locking block cylinder 23 is sleeved on the ball retaining cylinder 22, and an annular cavity R is formed on its periphery to accommodate the elastic member 24. Specifically, a through hole is formed at the axial center of the locking block cylinder 23, and an annular cavity R is formed between the inner peripheral wall of the through hole and the outer peripheral wall of the ball retaining cylinder 22. Moreover, the elastic member 24 is also sleeved on the ball retaining cylinder 22 and located in the annular cavity R.

[0052] The locking block 23 can move axially relative to the ball fixing cylinder 22, and the locking block 23, together with the ball fixing cylinder 22, acts on the elastic element 24, causing the elastic element 24 to extend and retract.

[0053] Specifically, an axially inward force is applied to the locking cylinder 23 in the locked position, causing the locking cylinder 23 to move axially inward to the unlocked position. At this time, the ball lock cylinder assembly 20 is in the unlocked state and the elastic element 24 is in the compressed state. Accordingly, the positioning pin 10 can be inserted into the pin hole H1.

[0054] Release the axial force applied to the locking cylinder 23. At this time, the locking cylinder 23 rebounds under the action of the elastic element 24, that is, the locking cylinder 23 moves outward along the axial direction to return the locking cylinder 23 to the locking position. Correspondingly, the ball 21 is embedded in the limiting slot C to lock the positioning pin 10.

[0055] As can be seen from the above, the pin tumbler lock cylinder assembly 20 mainly achieves the switching between the unlocked and locked states by axially moving the lock block cylinder 23 to switch between the unlocked and locked positions.

[0056] In a further optional embodiment, the locking block cylinder 23 is provided with a boss 231, which protrudes inward and fits against the outer peripheral wall of the ball retaining cylinder 22. The axial sides of the boss 231 are respectively an annular cavity section and a clearance section H3, the annular cavity section forming an annular cavity R with the outer peripheral wall of the ball retaining cylinder 22. In the unlocked state, the ball hole H2 is located in the clearance section H3; in the locked state, the ball hole H2 is covered by the boss 231.

[0057] In this embodiment, the inner side of the through hole of the locking block cylinder 23 is provided with a boss 231. The boss 231 is attached to the outer peripheral wall of the ball fixing cylinder 22. The two axial sides of the boss 231 are corresponding to the annular cavity section and the clearance hole section H3. The annular cavity section and the outer peripheral wall of the ball fixing cylinder 22 form an annular cavity R.

[0058] Understandably, as the locking block cylinder 23 moves axially, the boss 231 also adjusts its axial position. Correspondingly, the axial positions of the clearance hole section H3 and the annular cavity R also adjust. Thus, the elastic element 24 located in the annular cavity R also changes its axial dimension.

[0059] In addition, when the locking cylinder 23 moves to the unlocked position, the ball lock cylinder assembly 20 is in the unlocked state, and the clearance hole section H3 coincides with the ball hole H2. At this time, the ball 21 in the ball hole H2 has more space to move in the radial direction. When the positioning pin 10 is pulled out or inserted, the ball 21 can move out a part in the radial direction, ensuring that the positioning pin 10 can be pulled in and out in the axial direction.

[0060] When the locking cylinder 23 moves to the locking position, the ball lock cylinder assembly 20 is in a locked state, and the ball hole H2 is covered by the boss 231. At this time, the ball 21 in the ball hole H2 is restricted in the radial movement space, and the ball 21 is confined in the limiting slot C, thereby locking the positioning pin 10.

[0061] In a further optional embodiment, the inner axial end of the ball retaining cylinder 22 is formed with a first step 221 and a second step 222 arranged side by side. The first step 221 is located on the side of the second step 222 near the annular cavity R, and the second step 222 protrudes radially from the first step 221. The inner axial end of the locking block cylinder 23 is sleeved on the first step 221.

[0062] The distance between the inner axial end wall of the locking block cylinder 23 and the outer axial end wall of the second step 222 is L1, and the distance between the outer end wall of the boss 231 and the innermost part of the peripheral wall of the ball hole H2 is L2. L1 is not less than L2.

[0063] In this embodiment, the inner axial end of the ball fixing cylinder 22 has a first step 221 and a second step 222. The first step 221 and the second step 222 are arranged side by side, and the radial dimension of the first step 221 is smaller than the radial dimension of the second step 222, thus forming two steps with different heights.

[0064] The inner axial end of the locking block cylinder 23 is sleeved on the first step 221. Thus, the inner wall of the annular cavity section of the locking block cylinder 23, the outer peripheral wall of the ball fixing cylinder 22, the axial side wall of the boss 231, and the axial side wall of the first step 221 together form the annular cavity R. Furthermore, the two axial ends of the elastic member 24 abut against the axial side wall of the boss 231 and the axial side wall of the first step 221, respectively. Therefore, during the axial movement of the locking block cylinder 23, the elastic member 24 expands and contracts axially.

[0065] It should be understood that the maximum distance that the locking block cylinder 23 can move in the axial direction is the distance between the inner axial sidewall of the locking block cylinder 23 and the outer axial sidewall of the second step 222, i.e., L1. When the inner axial sidewall of the locking block cylinder 23 abuts against the outer axial sidewall of the second step 222, the locking block cylinder 23 is in the unlocked position.

[0066] Since the distance L2 between the outermost sidewall of the boss 231 and the innermost part of the peripheral wall of the ball hole H2 is not greater than L1, when the locking block 23 is in the unlocked position, the boss 231 completely leaves the position of the ball hole H2, and the ball hole H2 coincides with the clearance hole section H3, ensuring the radial movement space of the ball 21.

[0067] In some optional embodiments, the locking block cylinder 23 has radially extending ear plates 232 on opposite sides of its axial outer end, the ear plates 232 being located outside the mounting hole H4. When the cap plate 300 covers the battery tray 400, the ear plates 232 on both sides extend out of the adapter block 310 in the axial direction.

[0068] In this embodiment, the axial direction is the up-down direction, which is also the pressing direction. In the illustrated embodiment, the adapter block 310 is T-shaped, with its narrow end extending out of the cap plate 300. The narrow end is also narrower than the ear plates 232 on both sides. Thus, in the closed state, the ear plates 232 on both sides extend out of the adapter block 310, and the ear plates 232 on both sides are easy for the operator to press with their fingers or tools to achieve state switching.

[0069] In one embodiment, the number of limiting slots C is multiple and the same as the number of pins 21. The multiple limiting slots C are arranged at intervals around the positioning pin 10, so that during the insertion of the positioning pin 10, each limiting slot C is aligned with the position of each pin 21.

[0070] In a further optional embodiment, the limiting groove C is an annular groove with a cross-sectional shape that tapers radially from the outside to the inside. In this embodiment, since the limiting groove C is annular, there is no need to align the limiting groove C with the ball 21; it can be inserted directly. In addition, the cross-sectional shape is larger on the outside and smaller on the inside in the radial direction, which is more conducive to the movement of the ball 21 in the radial direction to complete the state switching.

[0071] In a further optional embodiment, the cross-sectional shape of the axial inner end of the positioning pin 10 is gradually tapered in the axial direction from the outside to the inside. That is, the axial inner end of the positioning pin 10 is pointed, becoming more pointed towards the inside, for example, the positioning pin 10 is aligned and inserted into the pin hole H1.

[0072] In some optional embodiments, the cap plate 300 is a rectangular plate and the battery tray 400 is a rectangular body; the number of adapter blocks 310 on each side of the periphery of the cap plate 300 is at least one, and the number of mounting holes H4 on each side wall of the periphery of the battery tray 400 is at least one.

[0073] In the illustrated embodiment, the cap plate 300 has two adapter blocks 310 on one side, for a total of eight adapter blocks 310, and correspondingly has eight positioning pins 10. The battery tray 400 has two mounting holes H4 on one side of its peripheral wall, for a total of eight mounting holes H4, and correspondingly has eight ball-lock cylinder assemblies 20.

[0074] The positioning pins 10 on the two adapter blocks 310 on each side can be aligned and engaged with the ball lock cylinder assembly 20 in the two mounting holes H4 on the side peripheral wall, so as to detachably cover the top side of the cap plate 300 onto the battery tray 400.

[0075] In practical applications, the number of adapter blocks 310 on one side of the cap plate 300 is not limited to two, and the number of mounting holes H4 on one side of the battery tray 400 is not limited to two. The cap plate 300 can be made of a highly hydrophobic material to ensure easy drying after washing.

[0076] Although embodiments of this application have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting this application. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of this application.

Claims

1. A battery tray with a cap plate, characterized in that, The cap plate (300) is detachably covered on the top side of the battery tray (400), and multiple positioning buckle structures (100) are provided between the cap plate (300) and the battery tray (400) to achieve detachable engagement.

2. The battery tray with a cap plate according to claim 1, characterized in that, The positioning buckle structure includes: A positioning pin (10) is connected to the cap plate (300) and a limiting groove (C) is formed on its outer peripheral wall; A pin tumbler lock cylinder assembly (20) is connected to the battery tray (400) and includes a plurality of pins (21) arranged circumferentially spaced. The pin tumbler lock cylinder assembly (20) has a pin hole (H1) that allows the positioning pin (10) to pass through and is configured to switch between an unlocked state and a locked state. In the locked state, each of the pins (21) is confined in the limiting slot (C) to lock the positioning pin (10); in the unlocked state, each of the pins (21) can disengage from the limiting slot (C) to allow the positioning pin (10) to be pulled out from the pin hole (H1).

3. The battery tray with a cap plate according to claim 2, characterized in that, The cap plate (300) has a plurality of adapter blocks (310) on its periphery, and each adapter block (310) is connected to the positioning pin (10); The battery tray (400) has mounting holes (H4) formed on its periphery, and the ball lock cylinder assembly (20) is inserted into the mounting holes (H4).

4. The battery tray with a cap plate according to claim 3, characterized in that, The ball lock cylinder assembly (20) includes a ball fixing cylinder (22), a locking block cylinder (23) and an elastic element (24), wherein at least a portion of the ball fixing cylinder (22) and the locking block cylinder (23) are inserted into the mounting hole (H4); The ball fixing cylinder (22) is provided with the pin hole (H1) extending along the axial direction, and has a plurality of ball holes (H2) arranged circumferentially and connected to the pin hole (H1), each ball hole (H2) is provided with the ball (21). The locking block cylinder (23) is sleeved on the ball fixing cylinder (22) and forms an annular cavity (R) with the ball fixing cylinder (22). The locking block cylinder (23) can move axially relative to the ball fixing cylinder (22). The elastic element (24) is disposed in the annular cavity (R) and sleeved on the ball fixing cylinder (22). In the unlocked state, the locking cylinder (23) moves to the unlocked position and compresses the elastic element (24); in the locked state, the elastic element (24) rebounds and springs the locking cylinder (23) back to the locked position.

5. The battery tray with a cap plate according to claim 4, characterized in that, The locking block cylinder (23) is provided with a boss (231), which protrudes inward and fits against the outer peripheral wall of the ball fixing cylinder (22); The boss (231) has an annular cavity section and a clearance section (H3) on its two axial sides, respectively. The annular cavity section cooperates with the outer peripheral wall of the ball fixing cylinder (22) to form the annular cavity (R). In the unlocked state, the pinhole (H2) is located in the clearance hole section (H3), and in the locked state, the pinhole (H2) is covered by the boss (231).

6. The battery tray with a cap plate according to claim 5, characterized in that, The inner axial end of the ball fixing cylinder (22) is formed with a first step (221) and a second step (222) arranged side by side; The first step (221) is located on the side of the second step (222) near the annular cavity (R), the second step (222) protrudes radially from the first step (221), and the inner axial end of the locking block cylinder (23) is sleeved on the first step (221); The distance between the inner axial sidewall of the locking block (23) and the outer axial sidewall of the second step (222) is L1, and the distance between the outer axial sidewall of the boss (231) and the innermost part of the peripheral wall of the ball hole (H2) is L2, where L1 is not less than L2.

7. The battery tray with a cap plate according to claim 4, characterized in that, The locking block cylinder (23) has radially extending ear plates (232) on opposite sides of its axial outer end, and the ear plates (232) are located outside the mounting hole (H4); With the cap plate (300) covering the battery tray (400), the ear plates (232) on both sides project axially from the adapter block (310) and extend to both sides of the adapter block (310).

8. The battery tray with a cap plate according to claim 2, characterized in that, The limiting groove (C) is an annular groove with a cross-sectional shape that gradually narrows radially from the outside to the inside.

9. The battery tray with a cap plate according to claim 2, characterized in that, The cross-sectional shape of the inner axial end of the positioning pin (10) is gradually tapered in the axial direction from the outside to the inside.

10. The battery tray with a cap plate according to claim 3, characterized in that, The cap plate (300) is a rectangular plate, and the battery tray (400) is a rectangular body; The number of the adapter blocks (310) on each side of the periphery of the cap plate (300) is at least one, and the number of the mounting holes (H4) on each side wall of the battery tray (400) is at least one.

Images