Battery assembly vibration isolation structure

Abstract

The utility model discloses a battery assembly vibration isolation structure, which is characterized in that a battery assembly receiving body is arranged between a connecting part at the lower end of a handheld electric tool shell and a power supply device, a middle connecting body is arranged between the battery assembly receiving body and the connecting part, and the middle connecting body is fixedly connected with the connecting part; the middle connecting body is flexibly connected with the battery assembly receiving body through the isolation buffering body and the bolt, and during vibration, the battery assembly receiving body and the connecting part move relatively, so that the battery assembly receiving body and the bolt on the battery assembly receiving body move relatively to the middle connecting body, and the isolation buffering body is extruded in the relative movement direction; the isolation buffer body is pressed to generate elastic deformation to absorb impact caused by vibration, so that the effects of buffering and isolating vibration are achieved; the isolation buffering body with the I-shaped section can play a buffering role in all directions, the problem that an existing battery assembly is poor in buffering and vibration isolation effect can be effectively solved, the vibration isolation effect can be improved, the stability of the handheld electric tool is enhanced, and the service life of the handheld electric tool is prolonged.

Description

Technical Field

[0001] The utility model belongs to the technical field of handheld electric tools, and in particular relates to a battery assembly vibration isolation structure. Background Art

[0002] Handheld power tools refer to tools that can be operated directly by hand and do not require other auxiliary devices, such as impact wrenches, drills and angle grinders. Handheld power tools are mainly divided into plug-in type and rechargeable type. Rechargeable handheld power tools mainly include a working device and a power supply device. The working device includes a shell and an electric motor and an actuator located in the shell. Part of the shell is formed into a handle that is easy to hold with the hand, and the bottom of the handle has a connecting part. The power supply device includes a shell and a battery assembly arranged in the shell. The shell is generally detachably connected to the connecting part, and matching connecting terminals are respectively provided on the connecting part and the shell. The battery assembly is electrically connected to the connecting terminals on the shell to supply power to the working device.

[0003] The working device and power supply device of the handheld power tool will generate strong relative vibration due to its own movement and the recoil force during use. Not only will it be easy for the connection terminals on the connection part and the power supply device to wear quickly due to frequent friction, causing the handheld power tool to fail to work normally due to poor power supply contact, but the strong vibration will also affect the structural stability of the battery assembly, easily accelerating the degradation of the battery assembly. At present, generally, a convex-concave structure is provided between the connection part and the power supply device and an elastic filler or elastic member is provided therebetween. Although the influence of vibration on the battery assembly is reduced, the connection terminals will still rub frequently. Another example is an impact wrench disclosed in Chinese patent CN208468214U. In this scheme, as shown in Figure 10 of its specification, a battery pack extension foot is added as an intermediate connection member between the connection part and the power supply device, and an elastic bracket and a connecting column are provided as a buffer structure between the connection part and the battery pack extension foot, but they only have a buffering effect on vertical vibration. Another example is a handheld electric tool disclosed in Chinese patent CN215395059U. In this scheme, a first elastomer and a first elastic hole column are provided between the raised part of the intermediate connection member and the inner wall of the handle of the working device to respectively realize lateral buffering and vertical buffering, but the lateral buffering and vertical buffering are provided independently of each other, which not only has a poor buffering and vibration isolation effect in other directions, but also has a large number of morphological characteristics and components, and a relatively complex structure. Summary of the invention

[0004] In view of the above-mentioned deficiencies in the prior art, the purpose of the present utility model is to provide a battery assembly vibration isolation structure to solve the technical problem that the current battery assembly has poor buffering and vibration isolation effect, thereby achieving the effect of improving the vibration isolation effect, enhancing the stability of handheld power tools, and extending their service life.

[0005] In order to solve the above technical problems, the utility model adopts the following technical solutions:

[0006] A battery assembly vibration isolation structure, comprising:

[0007] A housing is used to accommodate the motor and the actuator, and the bottom end of the housing has a connecting portion;

[0008] A battery assembly receiving body, one side of the battery assembly receiving body is used for connecting the battery assembly, and the other side of the battery assembly receiving body faces the connecting portion;

[0009] The battery assembly receiving body is connected to the connecting part through one or more intermediate connecting bodies.

[0010] An isolation buffer body made of elastic material is provided between the intermediate connector and the battery assembly receiving body or / and the connecting portion to isolate and reduce vibration of the battery assembly relative to the shell.

[0011] Furthermore, the isolation buffer body is arranged between the intermediate connector and the battery assembly receiving body;

[0012] The intermediate connecting body is connected to the isolation buffer body by a fastener passing through the isolation buffer body and connecting the battery assembly receiving body;

[0013] The isolation buffer body plays a role of isolation and vibration reduction between the intermediate connecting body and the fastener and the battery assembly receiving body.

[0014] Furthermore, the isolation buffer body is columnar, and the fastener is a bolt; at least one clearance hole is penetrated by the intermediate connecting body, the isolation buffer body is adapted to the aperture of the clearance hole and is located in the clearance hole, the isolation buffer body has a through hole coaxial with the clearance hole, the bolt passes through the through hole and is threadedly connected to the battery assembly receiving body, both ends of the isolation buffer body are located outside the clearance hole and radially protrude to form an annular buffer portion, the outer diameter of the buffer portion is larger than the diameter of the clearance hole, the opposite surfaces of the two buffer portions are respectively abutted against the two side surfaces of the intermediate connecting body, and the opposite surfaces are respectively abutted against the head of the bolt and the battery assembly receiving body.

[0015] Furthermore, the connecting portion has a concave cavity on one side facing the battery assembly receiving body, the battery assembly receiving body is located in the concave cavity and has a gap with the inner wall of the concave cavity, the intermediate connecting body is located between the bottom of the concave cavity and the battery assembly receiving body, and slots matching the ends of the intermediate connecting body are respectively provided on the opposite side walls of the concave cavity, and the two ends of the intermediate connecting body in the length direction are respectively inserted into the two slots.

[0016] Furthermore, the shell is composed of two half shells split in the length direction of the middle connector and detachably connected, and the connecting part also has a two-half structure and is integrally formed at the bottom ends of the two half shells.

[0017] Furthermore, there are two intermediate connectors which are spaced apart in the width direction thereof, and there are two clearance holes on the intermediate connector which are spaced apart in the length direction of the intermediate connector.

[0018] Furthermore, there is one clearance hole on the intermediate connector and it is located in the middle of the length direction of the intermediate connector.

[0019] Furthermore, the width of the intermediate connector at the clearance hole matches the outer diameter of the buffer portion, and in the length direction of the intermediate connector, the width of the intermediate connector sections on both sides of the clearance hole is narrowed to make the clearance hole annular.

[0020] Furthermore, a washer is provided between the head of the bolt and the isolation buffer body, and the outer diameter of the washer matches the outer diameter of the buffer part.

[0021] Furthermore, a connecting column is formed on the battery assembly receiving body, the outer diameter of the connecting column matches the diameter of the through hole, the connecting column is located in the through hole and the free end is lower than the washer, and the bolt is threadedly connected in the threaded hole opened on the connecting column.

[0022] Compared with the prior art, the utility model has the following beneficial effects:

[0023] 1. The battery assembly vibration isolation structure described in the utility model is characterized in that a battery assembly receiving body is arranged between the connecting part at the lower end of the handheld power tool housing and the power supply device, one side of the battery assembly receiving body is used to connect to the power supply device, and the other side is connected to the connecting part through a buffer group; the buffer group is fixedly connected to the connecting part through an intermediate connecting body, and the intermediate connecting body is flexibly connected to the battery assembly receiving body through an isolation buffer body and bolts; when vibrating, the battery assembly receiving body and the connecting part move relative to each other, so that the battery assembly receiving body and the bolts thereon move relative to the intermediate connecting body, squeezing the isolation buffer body in the direction of relative movement, and the isolation buffer body undergoes elastic deformation under pressure to absorb the impact caused by the vibration, thereby achieving the effect of buffering and vibration isolation.

[0024] 2. The battery assembly vibration isolation structure described in the utility model has an isolation buffer body with an I-shaped cross-section that plays a buffering role. The isolation buffer body abuts against the intermediate connecting body and the battery assembly receiving body in the axial and radial directions respectively, so that the relative movement of the battery assembly receiving body and the connecting part in all directions is restricted by the isolation buffer body, so that the isolation buffer body can play a buffering role in all directions, which can effectively solve the problem of poor buffering and vibration isolation effect of the current battery pack, and integrates multi-directional buffering in one, with a simple and reliable structure, which is conducive to improving the vibration isolation effect, enhancing the stability of handheld power tools, and extending their service life.

[0025] 3. In addition to being used in handheld power tools, the battery assembly vibration isolation structure of the utility model can also be used between two structural components of other equipment or tools that may move relative to each other due to vibration, thereby improving the stability of the plug-in electrical connection between the two components and the stability of the structure of the structural component itself. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 is a schematic diagram of a handheld power tool according to an embodiment;

[0027] Figure 2 It is a front view of the battery assembly vibration isolation structure described in the embodiment;

[0028] Figure 3 for Figure 2 A three-dimensional diagram with a power supply device and a housing hidden;

[0029] Figure 4 for Figure 3 A three-dimensional schematic diagram in which the connection portion is completely hidden;

[0030] Figure 5 for Figure 4 A three-dimensional schematic diagram in which the isolation buffer body and the gasket are hidden;

[0031] Figure 6 It is a schematic diagram of the inner side surface of a shell of the connecting part described in the embodiment;

[0032] Figure 7 It is a cross-sectional schematic diagram of the isolation buffer body described in the embodiment;

[0033] Among them, there are a shell 1, a connecting part 2, a battery assembly receiving body 3, a power supply device 4, an intermediate connecting body 5, a clearance hole 6, an isolation buffer body 7, a through hole 8, a bolt 9, a buffer part 10, a slot 11, a long bolt 12, a washer 13, and a connecting column 14. DETAILED DESCRIPTION

[0034] In order to make the purpose, technical solution and advantages of the embodiments of the present utility model clearer, the technical solution in the embodiments of the present utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the present utility model.

[0035] Example:

[0036] See also Figure 1 and Figure 2 A battery assembly vibration isolation structure includes a housing 1 for accommodating a motor and an actuator, wherein the housing 1 has a connection portion 2 at the bottom thereof; and further includes a battery assembly receiving body 3, wherein one side of the battery assembly receiving body 3 is used for connecting the battery assembly, and the other side faces the connection portion 2; the battery assembly receiving body 3 is connected to the connection portion 2 via one or more intermediate connecting bodies 5, and an isolation buffer body made of elastic material is provided between the intermediate connecting body 5 and the battery assembly receiving body 3 or / and the connection portion 2, so as to isolate and reduce vibration of the battery assembly relative to the housing 1;

[0037] Among them, the intermediate connector 5 and the isolation buffer body 7 serve as a buffer group, the battery assembly receiving body 3 is respectively connected to the connecting part 2 and the power supply device 4, the power supply device 4 includes a shell and a battery assembly arranged in the shell, the shell and the battery assembly receiving body 3 are detachably connected, the battery assembly receiving body 3 and the shell are respectively provided with matching connecting terminals, the battery assembly is electrically connected to the connecting terminals on the shell through wires, the connecting terminals on the shell are docked with the connecting terminals on the battery assembly receiving body 3, the connecting terminals on the battery assembly receiving body 3 are electrically connected to the connecting part 2 or the power input terminal in the working device through wires, so that the battery assembly supplies power to the working device; the connecting part 2 has a cavity inside and an opening on the lower surface, the battery assembly receiving body 3 is located in the concave cavity and has a gap with the inner wall of the concave cavity, so that the battery assembly receiving body 3 and the connecting part 2 can move relatively, and at least one intermediate connector 5 is provided between the side of the battery assembly receiving body 3 facing the bottom of the concave cavity and the bottom of the concave cavity.

[0038] During implementation, the isolation buffer body 7 can be set between the intermediate connector 5 and the connecting part 2. For example, the intermediate connector 5 is transversely fixed on the battery assembly receiving body 3, a groove is opened on the side wall opposite to the connecting part 2 and the end of the intermediate connector 5, the isolation buffer body 7 is set in the groove, and the two ends of the intermediate connector 5 are respectively inserted into the isolation buffer body 7 on the corresponding side, so that the isolation buffer body 7 plays a vibration isolation and buffering role between the intermediate connector 5 and the connecting part 2.

[0039] In this embodiment, see Figure 3 and Figure 4 , the isolation buffer body 7 is arranged between the intermediate connecting body 5 and the battery assembly receiving body 3; specifically, the fastener passes through the isolation buffer body 7 and connects to the battery assembly receiving body 3, and the intermediate connecting body 5 is connected to the isolation buffer body 7, so that the isolation buffer body 7 plays an isolation and vibration reduction role between the intermediate connecting body 5 and the fastener and the battery assembly receiving body 3.

[0040] Furthermore, during implementation, bolts can be used as fasteners, and the isolation buffer body 7 is set to be block-shaped and fixedly connected to the battery assembly receiving body 3 by two bolts. The intermediate connecting body 5 passes through the isolation buffer body 7 between the two bolts, and the two ends of the intermediate connecting body 5 are respectively connected to the side walls inside the connecting part 2.

[0041] In this embodiment, see Figure 3 ( Figure 2 A three-dimensional diagram with the power supply device 4 hidden), Figure 4 and Figure 5, bolts 9 are used as fasteners, and the isolation buffer body 7 is set in a columnar shape. At least one clearance hole 6 is penetrated on the intermediate connecting body 5. The diameter of the isolation buffer body 7 is adapted to the aperture of the clearance hole 6 and is located in the clearance hole 6. The isolation buffer body 7 has a through hole 8 coaxial with the clearance hole 6. The bolt 9 passes through the through hole 8 and is threadedly connected to the battery assembly receiving body 3. Both ends of the isolation buffer body 7 are located outside the clearance hole 6 and radially protrude to form an annular buffer part 10. The outer diameter of the buffer part 10 is larger than the diameter of the clearance hole 6. The opposite surfaces of the two buffer parts 10 are respectively abutted against the two side surfaces of the intermediate connecting body 5, and the opposite surfaces are respectively abutted against the head of the bolt 9 and the battery assembly receiving body 3; the isolation buffer body 7 and the buffer part 10 can be made of rubber, polyurethane and silicone foam, etc., and are integrally formed during manufacturing.

[0042] See also Figure 2 , Figure 3 and Figure 6 , for the convenience of assembly, slots 11 matching the ends of the intermediate connector 5 are respectively provided on the opposite side walls of the connecting part 2, and the two ends of the intermediate connector 5 in the length direction are respectively inserted into the two slots 11, and the housing 1 is composed of two half shells split in the length direction of the intermediate connector 5 and detachably connected, and the connecting part 2 is also in a two-half structure and is respectively integrally formed at the bottom ends of the two half shells; during assembly, the isolation buffer body 7 and the buffer part 10 are first pressed, and squeezed into the clearance hole 6 on the intermediate connector 5 through elastic deformation, and the opposite surfaces of the two buffer parts 10 are respectively abutted against the two side surfaces of the intermediate connector 5, and then the bolt 9 is passed through the through hole 8 on the isolation buffer body 7 to install the buffer group on the battery assembly receiving body 3, and then one end of the intermediate connector 5 is inserted into the slot 11 of one half shell along its length direction, and then the other half shell is closed and the other end of the intermediate connector 5 is inserted into the corresponding slot 11, and then the two half shells are connected by the long bolt 12, and there is also a gap between the head of the bolt 9 and the bottom wall of the concave cavity of the connecting part 2.

[0043] The battery assembly vibration isolation structure of the utility model is characterized in that a battery assembly receiving body 3 is arranged between a connecting part 2 at the lower end of a housing 1 of a handheld electric tool and a power supply device 4. One side of the battery assembly receiving body 3 is detachably connected to the power supply device 4, and the other side is connected to the connecting part 2 through a buffer group; the buffer group is fixedly connected to the connecting part 2 through an intermediate connecting body 5, and the intermediate connecting body 5 is flexibly connected to the battery assembly receiving body 3 through an isolation buffer body 7 and a bolt 9; when vibrating, since the battery assembly receiving body 3 is only connected to the connecting part 2 through the buffer group, the battery assembly receiving body 3 and the connecting part 2 will move relative to each other, so that the battery assembly receiving body 3 and the bolts 9 thereon move relative to the intermediate connecting body 5. The isolation buffer body 7 is moved in the direction of relative movement, and the isolation buffer body 7 is elastically deformed under pressure to absorb the impact caused by the vibration, thereby achieving the effect of buffering and vibration isolation; in addition, since the battery assembly receiving body 3 and the connecting part 2 are flexibly connected, and the connection between the battery device 4 and the battery assembly receiving body 3 is relatively fixed, within the vibration intensity range that the buffer group can resist, the battery device 4 and the battery assembly receiving body 3 tend to move relative to the connecting part 2 as a whole, and the friction between the connecting terminals of the battery device 4 and the battery assembly receiving body 3 is small, which is conducive to improving the durability of the connecting terminals and reducing the possibility that the handheld power tool cannot work normally due to poor power supply contact; Figure 7 As shown, the isolation buffer body 7 with an I-shaped cross-section is respectively abutted against the intermediate connector 5 and the battery assembly receiving body 3 through the buffer portion 10 in the axial direction, and abutted against the intermediate connector 5 through the outer wall in the radial direction, and abutted against the battery assembly receiving body 3 through the inner wall and the rod of the bolt 9, so that the relative movement of the battery assembly receiving body 3 and the connecting portion 2 in all directions is restricted by the isolation buffer body 7, so that the isolation buffer body 7 can play a buffering role in all directions, which can effectively solve the problem of poor buffering and vibration isolation effect of the current battery assembly, and integrates multi-directional buffering in one, with a simple and reliable structure, which is conducive to improving the vibration isolation effect, enhancing the stability of the handheld power tool, and extending its service life.

[0044] The number of buffer groups and the number of clearance holes 6 on the intermediate connecting body 5 for installing the isolation buffer body 7 can be flexibly adjusted according to the vibration intensity of the handheld power tool; Figure 4As shown, there are two buffer groups and they are spaced apart in the width direction of the intermediate connector 5. There are two clearance holes 6 on the intermediate connector 5 and they are respectively arranged at both ends of the length direction of the intermediate connector 5, and the four clearance holes 6 are distributed in a rectangular shape. The buffering function in the buffer group is mainly performed by the isolation buffer body 7. The intermediate connector 5 is used to fix the buffer group with the connecting part 2, so it is recommended that the intermediate connector 5 be made of a rigid material. In this way, the battery assembly receiving body 3 is connected to the connecting part 2 through two intermediate connectors 5, so that the connection is more reliable. The four isolation buffer bodies 7 are distributed in a rectangular shape, so that the buffering force is more uniform and is conducive to improving the buffering vibration isolation effect. During implementation, only one clearance hole 6 can be opened in the middle of the length direction of the intermediate connector 5, and an intermediate connector 5 made of elastic material can be used to further improve the buffering vibration isolation effect by deformation of the intermediate connector 5 under vibration.

[0045] See also Figure 3 and Figure 4 A washer 13 is provided between the head of the bolt 9 and the isolation buffer body 7, and the outer diameter of the washer 13 matches the outer diameter of the buffer portion 10; in this way, the head of the bolt 9 uses the washer 13 to increase the contact area with the buffer portion 10 on the isolation buffer body 7, so that the buffer portion 10 is subjected to more uniform force, which is beneficial to improving the buffering effect and stability.

[0046] See also Figure 4 and Figure 5 , a connecting column 14 is formed on the battery assembly receiving body 3, and the outer diameter of the connecting column 14 matches the diameter of the through hole 8. The connecting column 14 is located in the through hole 8 and the free end is lower than the washer 13, and the bolt 9 is threadedly connected to the threaded hole opened on the free end of the connecting column 14; in this way, the connecting column 14 not only plays a positioning role for the isolation buffer body 7 when installing the buffer group, but also separates the rod of the bolt 9 from the inner wall of the through hole 8 on the isolation buffer body 7. The connecting column 14 replaces the rod of the bolt 9 and cooperates with the through hole 8, so as to avoid friction between the isolation buffer body 7 and the thread of the bolt 9 when the isolation buffer body 7 is deformed due to vibration, thereby reducing the wear rate of the isolation buffer body 7, which is conducive to improving the durability of the buffer group; in addition, in this embodiment Since the two sides of the battery assembly receiving body 3 are electrically connected to the working device and the power supply device through wires and connecting terminals respectively, in order to ensure the reliability of conductivity and reduce the weight of the handheld power tool, the battery assembly receiving body 3 is made of plastic. In order to ensure the reliability of the connection between the bolts 9 for fixing the buffer group and the battery assembly receiving body 3, the connecting column 14 is designed to be a metal insert independently provided on the battery assembly receiving body 3. The lower end of the connecting column 14 has an embedded portion formed by radial protrusions, and the embedded portion is embedded and fixed in the battery assembly receiving body 3 (during manufacturing, it is integrally formed during the injection molding process of the battery assembly receiving body 3), and the upper end of the connecting column 14 protrudes from the battery assembly receiving body 3 for installation and positioning.

[0047] See also Figure 4 and5 The width of the intermediate connector 5 at the clearance hole 6 matches the outer diameter of the buffer portion 10. In the length direction of the intermediate connector 5, the width of the plate segments on both sides of the clearance hole 6 is narrowed and the plate segment where the clearance hole 6 is located is annular. The narrowed plate segment at the end of the intermediate connector 5 outside the annular portion is inserted into the slot 11 connected to the inner wall of the connecting portion 2. In this way, under the premise of ensuring that the intermediate connector 5 and the buffer portion 10 on the isolation buffer body 7 are subjected to uniform force during interaction, the intermediate connector 5 is reduced in weight by narrowing the width, which is beneficial to reducing the influence of the buffer group on the weight of the handheld power tool.

[0048] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit the technical solution. Ordinary technicians in this field should understand that those modifications or equivalent replacements of the technical solution of the utility model without departing from the purpose and scope of the technical solution of the utility model should be included in the scope of the claims of the utility model.

Claims

1. A battery assembly vibration isolation structure, characterized in that: include: A housing is used to accommodate the motor and the actuator, and the bottom end of the housing has a connecting portion; A battery assembly receiving body, one side of the battery assembly receiving body is used for connecting the battery assembly, and the other side of the battery assembly receiving body faces the connecting portion; The battery assembly receiving body is connected to the connecting part through one or more intermediate connecting bodies. An isolation buffer body made of elastic material is provided between the intermediate connector and the battery assembly receiving body or / and the connecting portion to isolate and reduce vibration of the battery assembly relative to the shell.

2. A battery assembly vibration isolation structure according to claim 1, characterized in that: The isolation buffer body is arranged between the intermediate connecting body and the battery assembly receiving body; The intermediate connecting body is connected to the isolation buffer body by a fastener passing through the isolation buffer body and connecting the battery assembly receiving body; The isolation buffer body plays a role of isolation and vibration reduction between the intermediate connecting body and the fastener and the battery assembly receiving body.

3. A battery assembly vibration isolation structure according to claim 2, characterized in that: The isolation buffer body is columnar, and the fastener is a bolt; at least one clearance hole is penetrated by the intermediate connecting body, the isolation buffer body is adapted to the aperture of the clearance hole and is located in the clearance hole, the isolation buffer body has a through hole coaxial with the clearance hole, the bolt passes through the through hole and is threadedly connected to the battery assembly receiving body, both ends of the isolation buffer body are located outside the clearance hole and radially protrude to form an annular buffer part, the outer diameter of the buffer part is larger than the diameter of the clearance hole, the opposite surfaces of the two buffer parts are respectively abutted against the two side surfaces of the intermediate connecting body, and the opposite surfaces are respectively abutted against the head of the bolt and the battery assembly receiving body.

4. A battery assembly vibration isolation structure according to claim 3, characterized in that: The connecting portion has a concave cavity on one side facing the battery assembly receiving body. The battery assembly receiving body is located in the concave cavity and has a gap with the inner wall of the concave cavity. The intermediate connecting body is located between the bottom of the concave cavity and the battery assembly receiving body. Slots matching the ends of the intermediate connecting body are respectively provided on the opposite side walls of the concave cavity. The two ends of the intermediate connecting body in the length direction are respectively inserted into the two slots.

5. A battery assembly vibration isolation structure according to claim 4, characterized in that: The shell is composed of two half shells which are split in the length direction of the middle connector and are detachably connected. The connecting part is also in a two-half structure and is integrally formed at the bottom ends of the two half shells.

6. A battery assembly vibration isolation structure according to claim 3, characterized in that: There are two intermediate connectors which are spaced apart in the width direction of the intermediate connectors, and there are two clearance holes on the intermediate connector which are spaced apart in the length direction of the intermediate connectors.

7. A battery assembly vibration isolation structure according to claim 3, characterized in that: There is one clearance hole on the intermediate connecting body and the hole is located in the middle of the length direction of the intermediate connecting body.

8. A battery assembly vibration isolation structure according to claim 3, characterized in that: The width of the intermediate connector at the clearance hole matches the outer diameter of the buffer portion. In the length direction of the intermediate connector, the widths of the intermediate connector sections on both sides of the clearance hole are narrowed to make the clearance hole annular.

9. A battery assembly vibration isolation structure according to claim 3, characterized in that: A washer is provided between the head of the bolt and the isolation buffer body, and the outer diameter of the washer matches the outer diameter of the buffer part.

10. A battery assembly vibration isolation structure according to claim 9, characterized in that: A connecting column is formed on the battery assembly receiving body, and the outer diameter of the connecting column matches the diameter of the through hole. The connecting column is located in the through hole and the free end is lower than the washer. The bolt is threadedly connected in the threaded hole opened on the connecting column.

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