Power bank case that is easy to install and has a secure connection

Abstract

The utility model relates to a mobile power supply housing that is easy to install and firmly connected. It includes a main shell and a top cover. The main shell is provided with a battery cell compartment. Fasteners are fixedly mounted on the outer peripheral surface of the battery cell, and the fasteners are fixedly installed in the battery cell compartment. The bottom edge of the top cover is fixedly connected to the fastener as a whole through a hook mechanism. The hook mechanism includes a hook, a clamping boss and a limiting boss. The hook is fixedly arranged on the bottom edge of the top cover, the clamping boss is fixedly arranged on the top edge of the fastener, and the limiting boss is fixedly arranged on the inner side wall of the open structure of the main shell. The hook portion of the hook passes through the passage and is engaged with the clamping boss, and the limiting boss is adjacent to or abuts against the hook in the clamping state. Through the configuration of the hook mechanism, the top cover can be installed by simply aligning and pushing in. The configuration of the limiting boss can limit and fix the hook, which can effectively reduce the probability of the hook falling off due to the deformation of the fastener, so that the installation of the top cover is very firm.

Description

Technical Field

[0001] The utility model relates to a mobile power supply accessory, in particular to a mobile power supply housing which is easy to install and firmly connected. Background Art

[0002] Portable outdoor energy storage power supplies are increasingly being used, and the battery cell is the core component. The battery cell will gradually decay during use, and will generate expansion force during the decay process. If the expansion is allowed, the decay will intensify, the service life will be reduced, and it will also cause safety problems. Therefore, the fasteners of the battery cell need to continuously apply a certain pressure to the battery cell, and the pressure must be greater than 3000 Newtons.

[0003] The expansion of the battery cell and the collision of the mobile power supply can easily cause a certain degree of deformation of the components connected thereto. The snap connection structure between the main shell and the top cover of the power supply shell, the utility model patent with application number 2023209349440 discloses a mobile power supply with convection heat dissipation; when this deformation occurs, the snap connection structure is prone to detachment, which in turn causes the connection of the power supply shell to loosen and cause adverse conditions. Summary of the invention

[0004] The utility model provides a mobile power supply housing which is easy to install and firmly connected, so as to overcome the problem that the snap connection structure of the existing power supply housing is prone to the hook being detached in special circumstances.

[0005] The utility model adopts the following technical solutions:

[0006] A mobile power supply housing that is easy to install and firmly connected comprises a main housing and a top cover, wherein the main housing is an open structure at the top, and a battery cell compartment is provided below the open structure. Fasteners are fixedly mounted on the outer peripheral surface of the battery cell, and the fasteners are fixedly installed in the battery cell compartment. The bottom edge of the top cover is fixedly connected to the fastener as a whole through a hook mechanism. The hook mechanism comprises a hook, a clamping boss and a limiting boss. The hook is fixedly arranged on the bottom edge of the top cover, the clamping boss is fixedly arranged on the top edge of the fastener, and the limiting boss is fixedly arranged on the inner side wall of the open structure of the main housing. A passage is formed between the limiting boss and the opposing clamping boss, and the hook portion of the hook passes through the passage to engage with the clamping boss, and the limiting boss is adjacent to or abuts against the hook in the clamped state.

[0007] As a further improvement, the limiting boss is provided with a wedge-shaped notch at the end of the entrance of the passage. The provision of the wedge-shaped notch increases the width of the entrance of the passage, reducing the difficulty of aligning the hook portion with the entrance and the difficulty of penetration.

[0008] As a further improvement, the main shell is provided with a ventilation compartment, which is adjacent to the battery cell compartment; the three top edges of the fastener adjacent to the main shell are respectively connected to the top cover through the hook mechanism; specifically, the three top edges are respectively provided with two evenly distributed clamping bosses.

[0009] In a further improvement, the fastener comprises a left frame member and a right frame member, and the left frame member and the right frame member are plastic integrally injection-molded parts with flexibility. The left frame member and the right frame member are parts with the same structure, and the battery cell is a square structure. The base ends of the front side edge and the rear side edge of the left frame member are connected as a whole through a transversely extending reinforcing rib, and the bottom side edge and the upper side edge of the left frame member are connected as a whole through a longitudinally extending reinforcing rib, and the transversely extending and longitudinally extending reinforcing ribs are cross-connected as a whole.

[0010] The left frame and the right frame are assembled into one by a snap mechanism; the snap mechanism includes a one-to-one corresponding hook and slot, and the end edges of the connection ends of the left frame and the right frame are respectively provided with corresponding hooks and slots; the battery cell is clamped between the left frame and the right frame in an interference-pressed manner. The hook includes a hook end and a base end that are integrally connected, and the gap between two adjacent base ends forms the slot. Each of the base ends is provided with two hook ends that are distributed in a mirror-symmetrical manner, and the hook parts of the two hook ends are arranged outward. The base end is provided with a reinforcing rib, and the reinforcing rib and the hook end are respectively provided on the opposite side surfaces of the base end, and the hook end, the base end and the reinforcing rib all protrude from the outer peripheral surface of the left frame and the right frame.

[0011] From the above description of the structure of the utility model, it can be seen that compared with the prior art, the utility model has the following advantages: the mobile power supply housing of the utility model is configured through the configuration of the hook mechanism, so that the top cover can be installed by simple alignment and pushing, and the installation is very convenient; through the configuration of the limiting boss of the hook mechanism, the hook can be limited and fixed, which can effectively reduce the probability of the hook falling off due to deformation of the fastener, so that the installation of the top cover is very firm; in addition, the cooperation between the limiting boss of the main shell and the hook has a limiting effect and a structural strengthening effect on the fastener equipped with the clamping boss, which is beneficial to the firm installation of the battery cell and the fastener in the battery cell compartment. The fastener of the battery cell is connected to the main shell and the top cover as a whole, reducing the probability of loosening. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is a schematic diagram of the front structural view of the mobile power supply housing of this embodiment.

[0013] Figure 2 The mobile power supply of this embodiment Figure 1 Schematic diagram of the cross-sectional structure in the AA direction and its local enlarged view.

[0014] Figure 3 It is a schematic structural diagram of the distribution of the hook mechanism of the mobile power supply of this embodiment.

[0015] Figure 4 It is a schematic diagram of the three-dimensional structure of the fastener and the battery cell of this embodiment. DETAILED DESCRIPTION

[0016] The specific implementation of the present utility model is described below with reference to the accompanying drawings.

[0017] Reference Figure 1 , Figure 2 , Figure 3 , a mobile power supply housing that is easy to install and firmly connected, includes a main housing 5 and a top cover 6, the main housing 5 is an open top structure, and the lower part of the open structure is a battery cell compartment. A fastener 12 is fixedly mounted on the outer peripheral surface of the battery cell, and the fastener 12 is fixedly installed in the battery cell compartment by conventional means such as gluing, snap connection or clamping and limiting. The bottom edge of the top cover 6 is fixedly connected to the fastener 12 as a whole through a hook mechanism 7. The hook mechanism 7 includes a hook 76, a clamping boss 712 and a limiting boss 75. The hook 76 is fixedly arranged on the bottom edge of the top cover 6, the clamping boss 712 is fixedly arranged on the top edge of the fastener 12, and the limiting boss 75 is fixedly arranged on the inner side wall of the open structure of the main housing 5. A passage is formed between the limiting boss 75 and the opposing clamping boss 712, and the limiting boss 75 is provided with a wedge-shaped notch 750 at the end of the entrance end of the passage. The provision of the wedge-shaped notch 750 increases the width of the entrance end of the passage, reducing the difficulty of aligning the hook portion of the hook 76 with the entrance end and the difficulty of penetration. The hook portion of the hook 76 passes through the passage and engages with the engaging boss 712, and the limiting boss 75 is adjacent to or abuts against the hook 76 in the engaged state. The main housing 5 is provided with a ventilation bin, which is adjacent to the battery cell bin; the three top edges of the fastener 12 adjacent to the main housing 5 are respectively connected to the top cover 6 through the hook mechanism 7; specifically, two evenly distributed engaging bosses 712 are respectively provided on the three top edges.

[0018] The mobile power supply housing is configured with a hook mechanism 7, so that the top cover 6 can be installed by simply aligning and pushing it in, and the installation is very convenient; the configuration of the limiting boss 75 of the hook mechanism 7 can limit and fix the hook 76, which can effectively reduce the probability of the hook 76 falling off due to the deformation of the fastener 12, so that the installation of the top cover 6 is very firm; in addition, the cooperation between the limiting boss 75 and the hook 76 of the main housing has a limiting effect and a structural strengthening effect on the fastener 12 equipped with the snap-on boss 712, which is beneficial to the firm installation of the battery cell and the fastener 12 in the battery cell compartment. The fastener 12 of the battery cell is connected to the main housing 5 and the top cover 6 as a whole, reducing the probability of loosening.

[0019] Reference Figure 2 , Figure 4 The fastener 12 includes a left frame member 1 and a right frame member 2, which are assembled into one piece through a buckle mechanism 3; the buckle mechanism 3 includes a one-to-one corresponding hook 31 and a slot 30, and the end edges of the connecting ends of the left frame member 1 and the right frame member 2 are respectively provided with corresponding hooks 31 and slots 30; the battery cell 4 is clamped between the left frame member 1 and the right frame member 2 with interference fit.

[0020] Continue to refer to Figure 2 , Figure 4 The hook 31 includes a hook end 311 and a base end 312 connected in one piece, and the gap between two adjacent base ends 312 forms the slot 30. Figure 4 Each of the base ends 312 is provided with two hook ends 311 distributed in a mirror-symmetrical manner, and the hook parts of the two hook ends 311 are arranged outward.

[0021] Continue to refer to Figure 4 The base end 312 is integrally provided with a reinforcing rib 313, and the reinforcing rib 313 and the hook end 311 are respectively arranged on two opposite side surfaces of the base end 312, and the hook end 311, the base end 312 and the reinforcing rib 313 all protrude from the outer peripheral surfaces of the left frame member 1 and the right frame member 2.

[0022] Continue to refer to Figure 4 The left frame member 1 and the right frame member 2 are made of flexible plastic and are integrally molded. The left frame member 1 and the right frame member 2 are connected to form a container structure with only the top open. The end surface of the electrode connection end of the battery cell 4 is arranged on the inner side of the open end edge of the fastener 12. The left frame member 1 and the right frame member 2 are components with the same structure, such as Figures 1 to 3 As shown, the battery cell 4 is a square structure, the base ends 312 of the front and rear edges of the left frame member 1 are connected as a whole through a laterally extending reinforcing rib 313a, the bottom and upper edges of the left frame member 1 are connected as a whole through a longitudinally extending reinforcing rib 313b, and the laterally extending and longitudinally extending reinforcing ribs 313 are cross-connected as a whole.

[0023] Continue to refer to Figure 4 All the above hooks 31 are hooks 31 that can withstand a tensile force greater than 200 Newtons. The front and rear edges of the left frame 1 are provided with 6 hooks 31, and the bottom edge of the left frame 1 is provided with 4 hooks 31. The left frame 1 and the right frame 2 have a total of 32 hooks 31 that can provide a total tensile force of more than 6000 Newtons. By utilizing the flexibility of plastic, after releasing the upper end pressure, the fastener 12 will always maintain a pressure of 6000 Newtons on the battery cell 4, and the battery cell 4 can be squeezed and is not completely hardened and solid.

[0024] Continue to refer to Figure 4 The base ends 312 of the left frame member 1 and the right frame member 2 are respectively provided with corresponding guide rods 314 and guide through holes 310. Figure 2 , Figure 4 As shown, a total of four guide rods 314 are provided at the four corners of the fastener 12 , and the guide rods 314 play a guiding role during the installation process.

[0025] Continue to refer to Figure 4 The installation method of the fastener 12 is as follows: stack the left frame 1, the battery cell 4, and the right frame 2 in order, then lay them down, place them on the installation equipment, and use a high-pressure cylinder to press the upper end until the hook 31 is buckled on the slot 30. The inner side of the fastener 12 is reversely deformed by 1.5mm to increase the yield strength of the fastener 12. The left and right frame members of the fastener 12 of the utility model are connected by a fixed number of buckle mechanisms, and the assembly of the fastener 12 can be completed by one-time extrusion through auxiliary equipment, and the extrusion force applied by each fastener 12 to the battery cell 4 is the same, which is convenient for standardized production; in addition, the setting of the hook end 311, the base end 312 and the reinforcing rib 313 protruding from the outer peripheral surface of the fastener 12 can effectively enhance the structural strength and compressive resistance of the fastener 12, which is conducive to applying a fixed value of clamping pressure to the battery cell 4 for a long time, and is safer to use; in addition, the left and right frame members 2 have the same structure and can be injection molded at one time, which is convenient for mass production.

[0026] The above is only a specific implementation method of the utility model, but the design concept of the utility model is not limited to this. Any non-substantial changes to the utility model using this concept shall be deemed as an infringement of the protection scope of the utility model.

Claims

1. A mobile power supply housing that is easy to install and firmly connected, comprising a main housing and a top cover, wherein the main housing is an open top structure, and a battery cell compartment is located below the open structure; fasteners are fixedly mounted on the outer peripheral surface of the battery cell, and the fasteners are fixedly installed in the battery cell compartment; the characteristics are: The bottom edge of the top cover is fixedly connected to the fastener as a whole through a hook mechanism; The hook mechanism includes a hook, a locking boss and a limiting boss; the hook is fixed on the bottom edge of the top cover, the locking boss is fixed on the top edge of the fastener, and the limiting boss is fixed on the inner side wall of the open structure of the main shell; a passage is formed between the limiting boss and the opposite locking boss, the hook part of the hook passes through the passage and engages with the locking boss, and the limiting boss is adjacent to or abuts against the hook in the locked state.

2. The mobile power supply housing with easy installation and firm connection as claimed in claim 1, characterized in that: The limiting boss is provided with a wedge-shaped notch at the end of the entrance end of the passage.

3. The mobile power supply housing with easy installation and firm connection as claimed in claim 1, characterized in that: The main shell is provided with a ventilation compartment, which is adjacent to the battery cell compartment; the three top edges of the fastener adjacent to the main shell are respectively connected to the top cover through the hook mechanism.

4. The mobile power supply housing with easy installation and firm connection as claimed in claim 3, characterized in that: Two of the clamping bosses are respectively arranged on the three top edges.

5. The mobile power supply housing with convenient installation and firm connection as claimed in claim 1, characterized in that: The fastener comprises a left frame member and a right frame member, and the left frame member and the right frame member are assembled into one by a snap mechanism; the snap mechanism comprises a one-to-one corresponding plug-in hook and a slot, and the end edges of the connecting ends of the left frame member and the right frame member are respectively provided with corresponding hooks and slots; the battery cell is clamped between the left frame member and the right frame member with interference fit.

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