Handle assembly and energy storage power supply

Abstract

The utility model discloses a handle assembly and an energy storage power supply. And the handle group is rotationally arranged on a shell of the energy storage power supply. The handle assembly comprises a handle and a handle, wherein a mounting hole is formed in the end part of the handle; the plastic connecting shaft comprises a first connecting part and a second connecting part which are connected with each other, the first connecting part is inserted into the mounting hole, and the second connecting part is suitable for being inserted into the through hole of the shell. In the handle assembly, the plastic connecting shaft can reduce the weight and cost of the handle assembly.

Description

TECHNICAL FIELD

[0001] The utility model relates to the energy storage technical field especially relates to a handle assembly and energy storage power supply. BACKGROUND

[0002] In the related art, the energy storage power supply includes a handle assembly and a shell, and a handle of the handle assembly is rotatably connected with the shell through a rotating shaft. Currently, the rotating shaft of the handle assembly is a hardware, which leads to high cost and heavy weight of the handle assembly. SUMMARY

[0003] The utility model provides a handle assembly and energy storage power supply to solve at least one technical problem existing above.

[0004] The utility model discloses a handle assembly of energy storage power supply, handle group rotation is arranged in the shell of energy storage power supply, handle assembly includes:

[0005] Handle, the end of handle is equipped with mounting hole;

[0006] Plastic connecting shaft, connecting shaft includes first connecting portion and second connecting portion who connects each other, first connecting portion is inserted in mounting hole, and second connecting portion is suitable for inserting in the through -hole of shell.

[0007] In the handle assembly, the plastic connecting shaft can reduce the weight and cost of the handle assembly.

[0008] In some embodiments, the first connecting portion is fixedly inserted into the mounting hole, and the second connecting portion is rotatably inserted into the through-hole of the shell.

[0009] In some embodiments, the first connecting portion is inserted into the mounting hole by cold pressing.

[0010] In some embodiments, the first connecting portion is inserted into the mounting hole by interference fit.

[0011] In some embodiments, the first connecting portion includes a main body and a clamping portion, the main body is connected with the second connecting portion, the clamping portion is arranged on the circumferential outer side surface of the main body, the main body is inserted into the mounting hole and connected with the hole wall of the mounting hole through the clamping portion, and the clamping portion is used to increase the friction force between the connecting shaft and the handle.

[0012] In some embodiments, the first connecting portion is provided with a groove along the axial direction on the outer peripheral wall of the mounting hole, and the groove is configured to increase the elasticity of the connecting shaft.

[0013] In some embodiments, in the axial direction of the connecting shaft, the groove extends in a direction away from one end of the first connecting portion and towards the second connecting portion, and the length of the groove is less than the depth of the mounting hole.

[0014] In some embodiments, the bottom width of the groove is greater than the opening width of the groove.

[0015] In some embodiments, the connecting shaft is a composite connecting shaft of polyamide and glass fiber, and / or the connecting shaft is a hollow structure.

[0016] The handle assembly of the energy storage power supply provided by the embodiment of the present application comprises the handle assembly of any one of the above embodiments.

[0017] In the energy storage power supply, the connecting shaft made of plastic can reduce the weight and cost of the handle assembly, and further reduce the weight and cost of the energy storage power supply.

[0018] The additional aspects and advantages of the present application will be partially given in the following description, partially will become obvious from the following description, or will be understood through the practice of the present application. BRIEF DESCRIPTION OF DRAWINGS

[0019] The above and / or additional aspects and advantages of the present application will become apparent and more readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings in which:

[0020] Figure 1 is a structural schematic diagram of the energy storage power supply of the embodiment of the present application;

[0021] Figure 2 is one of the partial structural schematic diagrams of the energy storage power supply of the embodiment of the present application;

[0022] Figure 3 is one of the partial sectional schematic diagrams of the energy storage power supply of the embodiment of the present application;

[0023] Figure 4 is Figure 3 is an enlarged view of the energy storage power supply A part of

[0024] Figure 5 is the second partial structural schematic diagram of the energy storage power supply of the embodiment of the present application;

[0025] Figure 6 is the second partial sectional schematic diagram of the energy storage power supply of the embodiment of the present application;

[0026] Figure 7 is Figure 6 is an enlarged view of the energy storage power supply B part of

[0027] Figure 8 is a partially exploded schematic view of a handle assembly of the present embodiment;

[0028] Figure 9 is a schematic view of a structure of a connecting shaft of the present embodiment;

[0029] Figure 10 is a schematic view of a structure of a connecting shaft of the present embodiment;

[0030] Figure 11 is a schematic view of a handle and a connecting shaft before assembly of the present embodiment;

[0031] Figure 12 is a schematic view of a handle and a connecting shaft after assembly of the present embodiment.

[0032] Main component reference numeral explanation:

[0033] Handle assembly 100, handle 12, connecting shaft 14, mounting hole 16, first connecting portion 18, second connecting portion 20, through hole 24, front shell 26, rear shell 28, operation panel 29, accommodating groove 30, main body 32, clamping portion 34, recess 36, energy storage power supply 200. DETAILED DESCRIPTION

[0034] The embodiments of the present application will be described in detail below with reference to the drawings, wherein the same or like reference numerals in the drawings denote the same or like elements or elements having the same or similar functions throughout. The embodiments described below with reference to the drawings are exemplary and are for the purpose of explaining the present application and should not be construed as limiting the present application.

[0035] The following disclosure provides many different embodiments, or examples, for implementing different structures of the present application. For the purpose of simplification, the components and arrangements of the specific examples are described in the following. Of course, they are only examples and are not intended to limit the present application. In addition, the present application can repeatedly refer to numbers and / or letters in different examples, and such repetition is for the purpose of simplification and clarity, and does not indicate the relationship between the various embodiments and / or arrangements discussed. In addition, the present application provides various specific examples of processes and materials, but those skilled in the art can realize the application of other processes and / or the use of other materials.

[0036] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, features defined as "first" or "second" may explicitly or implicitly include one or more features. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0037] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0038] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0039] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection. They can refer to a mechanical connection or an electrical connection. They can refer to a direct connection or an indirect connection through an intermediate medium, and they can refer to the internal communication of two components or the interaction between two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0040] Please see Figures 1 to 12The utility model discloses a handle assembly 100 of energy storage power supply 200, handle assembly 100 is rotatably arranged in the shell 22 of energy storage power supply 200, handle assembly 100 includes handle 12 and plastic connecting shaft 14.The end of handle 12 is equipped with mounting hole 16.Connecting shaft 14 includes the first connecting portion 18 and the second connecting portion of mutual connection, and the first connecting portion 18 is inserted in mounting hole 16, and the second connecting portion 20 is suitable for inserting in the through -hole 24 of shell 22.

[0041] In the handle assembly 100, the plastic connecting shaft 14 can reduce the weight and cost of the handle assembly 100.

[0042] Specifically, under the condition of the same size, the plastic connecting shaft 14 can reduce the weight and cost of the connecting shaft 14 compared with the metal connecting shaft, thereby reducing the weight and cost of the handle assembly 100.

[0043] The handle assembly 100 can be applied to devices including but not limited to energy storage power supply 200. For convenience of description, the following embodiments take the handle assembly 100 applied to the energy storage power supply 200 as an example. Figure 1 In the embodiments shown, the handle 12 is generally U-shaped, and each end of the handle 12 is provided with a mounting hole 16, and the first connecting portion 18 of each connecting shaft 14 is inserted into the mounting hole 16.

[0044] The utility model does not make specific limitation to the shape of the mounting hole 16 and the first connecting portion 18. In the embodiments shown, the mounting hole 16 is cylindrical, and the first connecting portion 18 is generally cylindrical and tapered at the end. Figure 4 and Figure 7 In the embodiments shown, the mounting hole 16 is cylindrical, the first connecting portion 18 is generally cylindrical and tapered at the end. Optionally, the material of the handle 12 is plastic. The plastic material of the handle 12 can be the same as or different from that of the connecting shaft 14. Optionally, the handle 12 can be integrally manufactured by injection molding process, and the connecting shaft 14 can be integrally manufactured by injection molding process.

[0045] The energy storage power supply 200 includes a shell 22, and the shell 22 is provided with two through holes 24. The second connecting portion 20 of each connecting shaft 14 is inserted into the through hole 24. Optionally, the shell 22 includes a front shell 26 and a rear shell 28, the front shell 26 is provided with a first half hole, the rear shell 28 is provided with a second half hole, and the first half hole and the second half hole form the through hole 24 after the front shell 26 is connected with the rear shell 28. The handle 12 is rotatably arranged at the top of the shell 22. The front shell 26 is provided with an operation panel 29 for electrically connecting external devices (loads or power supplies) with the energy storage power supply 200, supplying power to the load by the energy storage power supply 200, and charging the energy storage power supply 200 by the power supply.

[0046] Optionally, in one embodiment, the handle 12 is rotatable. Specifically, the top of the rear shell 28 is provided with a receiving slot 30. When the handle 12 is not in use, the handle 12 can be rotated to a storage position in the receiving slot 30 by operating the handle 12, as shown in Figures 5 to 7 , so as to reduce the space occupation of the energy storage power supply 200. When the handle 12 is in use, the handle 12 can be rotated from the receiving slot 30 to an unfolded position (e.g. a vertical position) by operating the handle 12, as shown in Figures 1 to 4 , so as to facilitate the user to operate the handle 12 to move the energy storage power supply 200.

[0047] In some embodiments, please refer to Figure 2 and Figure 5 , the first connecting portion 18 is fixedly inserted into the mounting hole 16, and the second connecting portion 20 is adapted to be rotatably inserted into the through hole 24 of the shell 22.

[0048] Thus, the handle assembly 100 can be integrally rotated compared to the shell 22.

[0049] Specifically, when the handle 12 is not in use, the handle assembly 100 can be integrally rotated compared to the shell 22 by operating the handle 12, so that the handle 12 is rotated to a storage position in the receiving slot 30, as shown in Figures 5 to 7 , so as to reduce the space occupation of the energy storage power supply 200. When the handle 12 is in use, the handle assembly 100 can be integrally rotated compared to the shell 22 by operating the handle 12, so that the handle 12 can be rotated from the receiving slot 30 to an unfolded position (e.g. a vertical position), as shown in Figures 1 to 4 , so as to facilitate the user to operate the handle 12 to move the energy storage power supply 200.

[0050] When the handle assembly 100 is integrally rotated, the handle 12 and the connecting shaft 14 can be synchronously rotated compared to the shell 22.

[0051] Optionally, in one embodiment, the first connecting portion 18 is rotatably inserted into the mounting hole 16, and the second connecting portion 20 is adapted to be fixedly inserted into the through hole 24 of the shell 22. When the handle 12 is rotated, the handle 12 can be rotated to the storage position or the unfolded position compared to the connecting shaft 14.

[0052] In some embodiments, please refer to Figure 11 and Figure 12 , the first connecting portion 18 is inserted into the mounting hole 16 by cold pressing.

[0053] Thus, the assembly of the connecting shaft 14 and the mounting hole 16 is simple and efficient.

[0054] Optionally, in one embodiment, the plastic connecting shaft 14 can be integrally manufactured by an injection molding process. The cold-pressing manner can mean that, after the connecting shaft 14 is injection molded, the connecting shaft 14 can be naturally cooled or air-cooled to room temperature, and then the first connecting portion 18 of the connecting shaft 14 is pressed into the mounting hole 16 by a tool, so as to complete the assembly of the connecting shaft 14 and the handle 12. The first connecting portion 18 is inserted into the mounting hole 16 by the cold-pressing manner, so that the first connecting portion 18 is fixedly inserted into the mounting hole 16, and the handle assembly 100 can be integrally rotated relative to the shell 22.

[0055] In addition, the cold-pressing manner for assembling the first connecting portion 18 and the mounting hole 16 can avoid thermal stress of the plastic connecting shaft 14 and the handle 12 caused by heat melting, so as to cause cracking of the connecting shaft 14.

[0056] Please refer to Figure 11 , before assembly, the first connecting portion 18 of the connecting shaft 14 is aligned with the mounting hole 16. Then, the connecting shaft 14 is pressed into the mounting hole 16 by a tool, as shown in Figure 12 .

[0057] In some embodiments, please refer to Figure 3 , Figure 4 , Figure 6 and Figure 7 , the first connecting portion 18 is inserted into the mounting hole 16 by an interference fit.

[0058] In this way, the assembly reliability of the first connecting portion 18 and the mounting hole 16 can be higher.

[0059] Specifically, in the present embodiment, the first connecting portion 18 is fixedly inserted into the mounting hole 16. The first connecting portion 18 is assembled with the mounting hole 16 by an interference fit, so that the first connecting portion 18 is fixedly inserted into the mounting hole 16. There is an interference fit between the outer side surface of the first connecting portion 18 and the hole wall of the mounting hole 16, and the interference amount therebetween can be configured according to the tightness and difficulty of assembly, which is not specifically limited in the present application.

[0060] In one embodiment, the interference fit enables the connecting portion to be synchronously rotated relative to the shell 22 when the handle 12 is rotated.

[0061] In some embodiments, please refer to Figure 4 , Figure 7 , Figure 9 and Figure 10 , the first connecting portion 18 includes a main body 32 and a clamping portion 34, the main body 32 is connected with the second connecting portion 20, the clamping portion 34 is arranged on the circumferential outer side surface of the main body 32, the main body 32 is inserted into the mounting hole 16 and connected with the hole wall of the mounting hole 16 through the clamping portion 34, and the clamping portion 34 is used to increase the friction force between the connecting shaft 14 and the handle 12.

[0062] Thus, the torsional strength of the connecting shaft 14 can be improved.

[0063] Specifically, the main body 32 is the portion of the first connecting portion 18 inserted into the mounting hole 16. The circumferential outer side of the main body 32 is provided with a clamping portion 34, which is in interference fit with the hole wall of the mounting hole 16, so as to increase the friction between the connecting shaft 14 and the handle 12.

[0064] In Figure 4 and Figure 7 , in the axial direction of the connecting shaft 14, the clamping portion 34 is tapered in the direction approaching the second connecting portion 20, on the one hand, the main body 32 can be more easily inserted into the mounting hole 16, on the other hand, the main body 32 is not easy to exit from the mounting hole 16.

[0065] In Figure 9 and Figure 10 , the clamping portion 34 can be arranged in the form of an interrupted ring in the circumferential direction of the connecting shaft 14, and the clamping portion 34 in the form of the ring can be arranged in one or more in the axial direction of the connecting shaft 14, so as to further increase the friction between the connecting shaft 14 and the handle 12, thereby improving the torsional strength of the connecting shaft 14. In other embodiments, the clamping portion 34 can be arranged in the form of a continuous ring in the circumferential direction of the connecting shaft 14.

[0066] In some embodiments, in combination with Figure 4 , Figure 7 , Figure 9 and Figure 10 , the first connecting portion 18 is provided with a groove 36 in the axial direction of the outer peripheral wall of the mounting hole 16, and the groove 36 is configured to increase the elasticity of the connecting shaft 14.

[0067] Thus, the first connecting portion 18 can be easily assembled to the mounting hole 16.

[0068] Specifically, the portion of the first connecting portion 18 located in the mounting hole 16 can be a main body 32, and the outer peripheral wall of the main body 32 is provided with a groove 36 in the axial direction. During the process of inserting the main body 32 into the mounting hole 16, the main body 32 is extruded by the hole wall of the mounting hole 16, and the groove 36 can provide a space for the deformation of the main body 32, so that the main body 32 can be assembled into the mounting hole 16 along the hole wall of the mounting hole 16. After being assembled in place, the main body 32 is in abutment with the hole wall of the mounting hole 16 under the action of the elastic force, forming a relatively stable assembly connection.

[0069] Optionally, in Figure 4 and Figure 7In the embodiment, the circumferential outer side of the main body 32 is provided with a clamping portion 34, the main body 32 abuts against the hole wall of the mounting hole 16 through the clamping portion 34, and under the elastic force of the main body 32 and the assembly of the clamping portion 34 and the hole wall of the mounting hole 16 in interference fit, the connecting shaft 14 can be firmly inserted into the mounting hole 16, further improving the torsional strength of the connecting shaft 14.

[0070] In some embodiments, please refer to Figure 4 and Figure 7 In the axial direction of the connecting shaft 14, the groove 36 extends in the direction close to the second connecting portion 20 from the end of the first connecting portion 18 away from the second connecting portion 20, and the length of the groove 36 is less than the depth of the mounting hole 16.

[0071] In this way, the structural strength of the connecting shaft 14 can be improved.

[0072] Specifically, the main body 32 is located in the mounting hole 16, the main body 32 is provided with a groove 36, and the length of the groove 36 is less than the depth of the mounting hole 16, so that the groove 36 is located in the mounting hole 16 as a whole, increasing the elasticity of the main body 32. The length of the groove 36 is less than the depth of the mounting hole 16, so that the groove 36 does not extend outside the mounting hole 16. In the case of improving the elasticity of the main body 32, the structural strength of the connecting shaft 14 can also be improved, and the groove 36 is not too long to cause the connecting shaft 14 to be easily broken.

[0073] In some embodiments, please refer to Figure 9 , the bottom width of the groove 36 is greater than the opening width of the groove 36.

[0074] In this way, the first connecting portion 18 can be easily assembled into the mounting hole 16.

[0075] Specifically, the bottom width of the groove 36 is greater than the opening width of the groove 36, so that the part of the main body 32 at the opening of the groove 36 is more likely to deform than the part of the main body 32 at the bottom of the groove 36. During the process of inserting the first connecting portion 18 into the mounting hole 16, the part of the main body 32 at the opening of the groove 36 deforms more, so that the first connecting portion 18 can be easily assembled into the mounting hole 16.

[0076] In addition, the part of the main body 32 at the bottom of the groove 36 is thicker, so that the part of the main body 32 surrounding the groove 36 is not easy to break, and the reliability of the connecting shaft 14 is ensured to a certain extent.

[0077] In some embodiments, please refer to the drawings, the connecting shaft 14 is a composite connecting shaft 14 of polyamide and glass fiber.

[0078] In this way, the connecting shaft 14 can be ensured to have a certain rigidity.

[0079] Specifically, the connecting shaft 14 is a composite connecting shaft 14 of polyamide and glass fiber, so that the connecting shaft 14 has a certain rigid design and is prevented from being broken.

[0080] Optionally, the connecting shaft 14 is a composite connecting shaft 14 of PA66+30% GF, and the PA66+30% GF specifically refers to a composite material of polyamide 66 (nylon 66) reinforced by 30% glass fiber (GF). The plastic connecting shaft 14 and the handle 12 can be separately disassembled.

[0081] In some embodiments, please refer to Figure 4 and Figure 7 , the connecting shaft 14 is a hollow structure.

[0082] Therefore, the connecting shaft 14 with the hollow structure can further reduce the cost and weight.

[0083] The energy storage power supply 200 provided by the utility model embodiment comprises the handle assembly 100 of any one of the above embodiments.

[0084] In the energy storage power supply 200, the plastic connecting shaft 14 can reduce the weight and cost of the handle assembly 100, and further reduce the weight and cost of the energy storage power supply 200.

[0085] Optionally, the energy storage power supply 200 further comprises a shell 22, and the handle assembly 100 is rotatably arranged on the top of the shell 22. Specifically, the shell 22 comprises a front shell 26 and a rear shell 28, the front shell 26 is provided with an operation panel 29, which is used for electrically connecting an external device (a load or a power supply) with the energy storage power supply 200, supplying power to the load by the energy storage power supply 200, and charging the energy storage power supply 200 by the power supply.

[0086] Optionally, in an embodiment, the handle 12 is rotatable. Specifically, the top of the rear shell 28 is provided with a containing groove 30, when the handle 12 is not used, the handle 12 can be rotated to a storage position and stored in the containing groove 30 by operating the handle 12, so as to reduce the space occupation of the energy storage power supply 200. Figures 5 to 7 When the handle 12 is used, the handle 12 can be rotated from the containing groove 30 to an unfolded position (such as a vertical position) by operating the handle 12, as shown in Figures 1 to 4 , so as to facilitate the user to operate the handle 12 to move the energy storage power supply 200.

[0087] In summary, the handle assembly 100 and the energy storage power supply 200 of the utility model have at least the following beneficial effects:

[0088] 1. By using the plastic connecting shaft 14 instead of the metal shaft, the cost of the handle assembly 100 is reduced by 23%;

[0089] 2. Realize the handle assembly 100 lightweight, product quality do light, the total weight on the basis of reducing 35g;

[0090] 3. Simplify the design of the handle assembly 100, and has been used in the product, improve the product competitiveness;

[0091] 4. Using cold pressing process, avoid the plastic connecting shaft 14 and handle 12 set beer and hot melt thermal stress, thereby causing the connecting shaft 14 cracking problem.

[0092] In the description of the present specification, the description referring to the terms "one embodiment", "some embodiments", "exemplary embodiment", "example", "specific example", or "some examples" and the like means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the present specification, the exemplary description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0093] Although the embodiments of the present application have been shown and described, those skilled in the art can understand that various changes, combinations, modifications, replacements and variations can be made to these embodiments without departing from the principles and spirits of the present application, and the scope of the present application is defined by the claims and their equivalents.

Claims

1. A handle assembly for an energy storage power source, the handle assembly being rotatably mounted on the housing of the energy storage power source, characterized in that, The handle assembly includes: A handle, wherein the end of the handle is provided with a mounting hole; A plastic connecting shaft, the connecting shaft including a first connecting part and a second connecting part that are connected to each other, the first connecting part being inserted into the mounting hole, and the second connecting part being adapted to be inserted into the through hole of the housing.

2. The handle assembly according to claim 1, characterized in that, The first connecting part is fixedly inserted into the mounting hole, and the second connecting part is adapted to be rotatably inserted into the through hole of the housing.

3. The handle assembly according to claim 2, characterized in that, The first connecting part is inserted into the mounting hole by cold pressing.

4. The handle assembly according to any one of claims 1-3, characterized in that, The first connecting part is inserted into the mounting hole by means of an interference fit.

5. The handle assembly according to claim 4, characterized in that, The first connecting part includes a main body and a locking part. The main body is connected to the second connecting part. The locking part is disposed on the circumferential outer side of the main body. The main body is inserted into the mounting hole and connected to the hole wall of the mounting hole through the locking part. The locking part is used to increase the friction between the connecting shaft and the handle.

6. The handle assembly according to claim 1, characterized in that, The first connecting part has an axial groove on the outer peripheral wall of the mounting hole, and the groove is configured to increase the elasticity of the connecting shaft.

7. The handle assembly according to claim 6, characterized in that, In the axial direction of the connecting shaft, the groove extends from the end of the first connecting portion away from the second connecting portion toward the second connecting portion, and the length of the groove is less than the depth of the mounting hole.

8. The handle assembly according to claim 6 or 7, characterized in that, The bottom width of the groove is greater than the opening width of the groove.

9. The handle assembly according to claim 1, characterized in that, The connecting shaft is a composite connecting shaft of polyamide and glass fiber, and / or the connecting shaft is a hollow structure.

10. An energy storage power source, characterized in that, Includes the handle assembly as described in any one of claims 1-9.

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