Lithium battery wrench for automobile and lithium battery structure of lithium battery wrench

Abstract

The invention discloses a lithium battery wrench for an automobile and a lithium battery structure of the lithium battery wrench, and belongs to the technical field of lithium battery vibration damping. The lithium battery wrench comprises a lithium battery wrench main body and a lithium battery pack detachably mounted on the lithium battery wrench main body, a mounting end handle is arranged on the lithium battery wrench main body, and the mounting end handle is connected with a sleeving end seat through a human body stress traction piece; the sleeving end base is used for reducing vibration force on the lithium battery pack when the lithium battery wrench body works, and is connected with a battery combination cover through an angle traction assembly. According to the lithium battery of the lithium battery wrench, the lithium battery wrench and the lithium battery pack are connected through the installation end handle and the sleeving end base, elastic force storage is conducted between the installation end handle and the sleeving end base through the action of the hand of the human body when the lithium battery wrench is used, and the stress bearing ring is supported through the jaw of the hand; the vibration transmission of the lithium battery wrench main body during use is reduced, and the influence of the vibration of the lithium battery wrench on the lithium battery pack is obviously reduced through human body stress traction.

Description

Technical Field

[0001] The invention relates to the technical field of lithium battery vibration reduction, and in particular to a lithium battery wrench for automobiles and a lithium battery structure thereof. Background Art

[0002] Lithium-ion battery wrench is a commonly used electric tool in the automotive industry. It is a tool for tightening high-strength bolts. Lithium-ion battery wrench can be divided into safety clutch type and impact type. The safety clutch type is a structural type that uses a safety clutch mechanism that disengages when a certain torque is reached to complete the installation and removal of threaded parts; the impact type uses an impact mechanism to complete the installation and removal of threaded parts with its impact torque. It is often used in the maintenance and production of automobiles.

[0003] When some automobile nuts are disassembled, the lithium-ion wrench often vibrates due to the reaction force. The current battery mounting structure of the lithium-ion wrench does not have a multi-directional shock-absorbing effect. During use, the lithium-ion battery will vibrate synchronously with the wrench. Long-term vibration will affect the internal structure of the lithium-ion battery. Some lithium-ion batteries with shock-absorbing structures have limited shock-absorbing directions. In actual use, the lithium-ion wrench follows the position of the nut and the angle of use is not limited. This causes the lithium-ion battery installed thereon to be used in multiple angles and under multiple forces. The internal shock-absorbing structure often does not work. Based on this, a lithium-ion wrench for automobiles and a lithium-ion battery structure thereof are proposed. Summary of the invention

[0004] The purpose of the present invention is to solve the problem that when some automobile nuts in the prior art are disassembled, some lithium batteries with shock-absorbing structures have limited shock-absorbing directions, while in actual use, the lithium-powered wrench follows the position of the nut and the angle of use is not limited, which makes the lithium batteries arranged thereon also have multiple angles and multiple force conditions of use, and the shock-absorbing structure arranged inside often does not work. A lithium-powered wrench for automobiles and a lithium-powered battery structure thereof are proposed.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] A lithium battery wrench for automobiles, comprising a lithium battery wrench body and a lithium battery pack detachably mounted on the lithium battery wrench body, wherein the lithium battery wrench body comprises a wrench housing and a brushless motor arranged on the wrench housing, wherein the brushless motor is connected to the wrench housing via shock-absorbing connection end seats arranged at both ends;

[0007] A lithium battery structure, comprising a lithium battery pack detachably mounted on a lithium battery wrench body, a mounting end handle being arranged on the lithium battery wrench body, the mounting end handle being connected to a sleeve end seat through a human body force traction member, for reducing the vibration force of the lithium battery pack on the lithium battery pack when the lithium battery wrench body is working, the sleeve end seat being connected to a battery assembly cover through an angle traction assembly, and the lithium battery pack and the battery assembly cover being detachably connected through a locking member;

[0008] The lithium battery pack includes a lithium battery box and a lithium battery base, on which multiple groups of lithium battery bodies are arranged, and on which heat-conducting limit plates adapted to the lithium battery bodies are distributed, and on both sides of the lithium battery box are arranged connection terminals connected to the electrical signals of the battery combination cover.

[0009] Preferably, the human body force traction member includes a T-shaped telescopic opening opened at the bottom of the mounting end handle, and the sleeve end seat is provided with a sleeve opening adapted to the mounting end handle, and a T-shaped piece penetrating into the T-shaped telescopic opening is fixedly arranged at the bottom of the sleeve opening, and the T-shaped piece is connected to the inner wall of the T-shaped telescopic opening through a sleeve telescopic spring.

[0010] Preferably, a load-bearing ring is sleeved on the mounting end handle, and two sides of the load-bearing ring are fixedly connected to the side walls of the sleeve end seat through "C"-shaped rods.

[0011] Preferably, the angle traction assembly includes a receiving opening opened in the T-shaped piece, the inner wall of the receiving opening is connected to a fixed ball seat via a connecting spring, the fixed ball seat is connected to a telescopic column via a steering ball, and the end of the telescopic column is connected to the top of the battery combination cover.

[0012] Preferably, a groove adapted to the telescopic column is provided on the sleeve end seat, and the telescopic column is composed of an outer sleeve and an inner spring column to achieve telescopic length.

[0013] Preferably, the locking member comprises a pressing buckle arranged on the side wall of the battery assembly cover, a docking port is provided on the lithium battery box, and a sliding buckle opening matched with the pressing buckle is provided on the docking port.

[0014] Preferably, a wiring slot adapted to the wiring terminal is provided on the battery assembly cover, a sliding elastic contact plate is provided on the inner wall of the wiring slot, and spring pressure blocks in contact with the lithium battery pack are provided at the four corners of the battery assembly cover.

[0015] Preferably, the battery assembly cover is made of heat-conducting material, and heat dissipation ribs for increasing the heat exchange area are arranged on the outside of the battery assembly cover.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] 1. The present invention is directed to the lithium battery of a lithium-ion battery wrench. The connection between the lithium-ion battery wrench and the lithium-ion battery pack is achieved by connecting the mounting end handle with the sleeve end seat, and utilizing the movement of a human hand when the lithium-ion battery wrench is used to elastically store force between the mounting end handle and the sleeve end seat. The force-bearing ring is supported by the base of the hand, thereby reducing the transmission of vibration of the lithium-ion battery wrench body when in use, and significantly reducing the influence of the vibration of the lithium-ion battery wrench on the lithium-ion battery pack through the force traction of the human body.

[0018] 2. The present invention is designed based on the working angle of the lithium battery wrench and the various angles of the nut position that affect the vibration reduction effect. Through the cooperation of the telescopic column and the universal ball, the battery combination cover can always be kept in a vertical state in the working state. At this time, the lithium battery pack in the battery combination cover can be ensured to be vertical, and the vibration reduction structure arranged in the lithium battery pack can play a vibration reduction role, ensuring the vibration reduction effect on the lithium battery.

[0019] 3. The present invention is designed to address the heat generated by lithium batteries when working at high power. Through the arrangement of the heat-conducting limit plate and the lithium battery box, the heat of the lithium battery can be transferred to the battery assembly cover, and the heat is dissipated through the combined action of the battery assembly cover and the heat dissipation ribs thereon. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 A schematic diagram of the use of a lithium battery wrench for automobiles and its lithium battery structure proposed by the present invention Figure 1 ;

[0021] Figure 2 A schematic diagram of the use of a lithium battery wrench for automobiles and its lithium battery structure proposed by the present invention Figure 2 ;

[0022] Figure 3 This is a schematic diagram of the structural assembly of a lithium battery wrench for automobiles and a lithium battery structure thereof provided by the present invention;

[0023] Figure 4 This is a schematic diagram of the structure of the mounting end handle of a lithium battery wrench for automobile and its lithium battery structure proposed by the present invention;

[0024] Figure 5 A schematic diagram of the structural assembly of a lithium battery pack in a lithium battery wrench for automobile and a lithium battery structure thereof proposed by the present invention;

[0025] Figure 6 A partial structural cross-sectional view of a lithium battery wrench for automobile and a lithium battery structure thereof proposed by the present invention;

[0026] Figure 7 for Figure 6 A schematic diagram of the enlarged structure at A in the middle;

[0027] Figure 8 for Figure 6 Schematic diagram of the enlarged structure at point B in the middle.

[0028] In the figure: 1. lithium battery wrench body; 101. wrench housing; 102. brushless motor; 103. shock-absorbing connecting terminal; 2. mounting end handle; 3. sleeve terminal; 4. battery combination cover; 5. lithium battery box; 6. lithium battery base; 7. lithium battery body; 8. thermal limit plate; 9. wiring terminal; 10. T-shaped telescopic opening; 11. sleeve opening; 12. T-shaped piece; 13. load-bearing ring; 14. "C"-shaped rod; 15. storage opening; 16. fixed ball seat; 17. telescopic column; 18. groove; 19. press buckle; 20. docking port; 21. sliding buckle opening; 22. wiring slot; 23. sliding elastic touch plate; 24. resisting spring pressure block; 25. heat dissipation ridge. DETAILED DESCRIPTION

[0029] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0030] In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "top / bottom" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0031] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "mounted / connected", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0032] Example, see Figures 1 to 8 A lithium battery wrench for automobile and its lithium battery structure, comprising a lithium battery wrench body 1 and a lithium battery pack detachably mounted on the lithium battery wrench body 1, wherein a plurality of lithium battery packs can be provided for alternate replacement and use;

[0033] The lithium battery wrench body 1 comprises a wrench housing 101 and a brushless motor 102 arranged on the wrench housing 101, and the brushless motor 102 is connected to the wrench housing 101 through shock-absorbing connecting end seats 103 arranged at both ends, wherein the shock-absorbing connecting end seats 103 are built with shock-absorbing pads for reducing the influence of vibration on the brushless motor 102 during operation;

[0034] The selection of the brushless motor 102 solves the problem of the existing brushed motor having a short service life due to a rapid drop in speed when under load and rapid wear of the carbon brushes. The brushless motor 102 is a prior art and will not be described in detail here.

[0035] The lithium battery wrench body 1 is provided with a mounting end handle 2, which is a control end of the lithium battery wrench body 1 and is a prior art. The mounting end handle 2 is connected to a sleeve end seat 3 through a human body force traction member.

[0036] Furthermore, the human body force traction member includes a T-shaped telescopic opening 10 opened at the bottom of the mounting end handle 2, a sleeve opening 11 adapted to the mounting end handle 2 is opened on the sleeve end seat 3, a T-shaped piece 12 penetrating into the T-shaped telescopic opening 10 is fixedly arranged at the bottom of the sleeve opening 11, and the T-shaped piece 12 is connected to the inner wall of the T-shaped telescopic opening 10 through a sleeve telescopic spring.

[0037] The advantage of adopting the above structure is that the elastic connection between the lithium-ion wrench body 1 and the lithium-ion battery pack can be achieved through the elastic connection between the mounting end handle 2 and the sleeve end seat 3, so that when the human body is subjected to vibration, the vibration is borne by the hand, reducing the transmission of the vibration of the lithium-ion wrench body 1 to the lithium-ion battery pack, thereby ensuring the protection of the lithium battery.

[0038] Furthermore, a load-bearing ring 13 is sleeved on the mounting end handle 2 , and two sides of the load-bearing ring 13 are fixedly connected to the side walls of the sleeve end seat 3 through “C”-shaped rods 14 .

[0039] When in use, when holding the mounting end handle 2, the load-bearing ring 13 can be moved upward, so that the "C"-shaped rod 14 drives the sleeve end seat 3 to move upward, thereby squeezing the telescopic spring so that it is in a force-storing state, and supporting the load-bearing ring 13 through the base of the hand, thereby reducing the transmission of vibration of the lithium-ion wrench body 1 during use, thereby reducing the impact on the lithium battery body 7.

[0040] Used to reduce the vibration force of the lithium battery wrench body 1 on the lithium battery pack when working, the sleeve end seat 3 is connected to the battery combination cover 4 through an angle traction assembly. Furthermore, the angle traction assembly includes a storage port 15 opened in the T-shaped piece 12, and the inner wall of the storage port 15 is connected to a fixed ball seat 16 through a connecting spring. The fixed ball seat 16 is connected to a telescopic column 17 through a steering ball, and the end of the telescopic column 17 is connected to the top of the battery combination cover 4.

[0041] Furthermore, a groove 18 adapted to the telescopic column 17 is provided on the sleeve end seat 3. The telescopic column 17 is composed of an outer sleeve and an inner spring column to achieve telescopic length.

[0042] It is worth noting that when the lithium-ion wrench body 1 is working, it will be subjected to various stress forms such as tilting, inversion and transverse according to different use angles. The battery combination cover 4 and the sleeve end seat 3 are connected by the telescopic column 17 connected by the steering ball. When the lithium-ion wrench body 1 changes any angle, the battery combination cover 4 connected to the telescopic column 17 can be adjusted to ensure that the lithium battery pack connected to the battery combination cover 4 is always in a vertical state, thereby ensuring that the vibration reduction structure arranged inside it can effectively reduce vibration.

[0043] The lithium battery pack and the battery combination cover 4 are detachably connected via a locking member, which includes a pressing buckle 19 arranged on the side wall of the battery combination cover 4. The lithium battery box 5 is provided with a docking port 20, and the docking port 20 is provided with a sliding buckle opening 21 adapted to the pressing buckle 19.

[0044] The vertical distance of the sliding buckle opening 21 is much larger than the size of the pressing buckle 19, so that when the lithium battery pack is moved due to vibration reduction, it can slide without affecting the locking effect of the locking member.

[0045] It is worth noting that the docking port 20 is compatible with the battery assembly cover 4. During installation, the docking port 20 is in close contact with the battery assembly cover 4. The battery assembly cover 4 can transfer heat to the battery assembly cover 4, and effectively dissipate heat through the battery assembly cover 4 and the heat dissipation ribs 25 thereon.

[0046] The lithium battery pack includes a lithium battery box 5 and a lithium battery base 6. A plurality of lithium battery bodies 7 are arranged on the lithium battery base 6. The lithium battery bodies 7 are cylindrical lithium batteries, which are prior art and will not be described in detail here.

[0047] A heat-conducting limit plate 8 adapted to the lithium battery body 7 is distributed on the lithium battery base 6. The battery assembly cover 4 is made of a heat-conducting material. A heat-dissipating rib 25 for increasing the heat exchange area is arranged outside the battery assembly cover 4.

[0048] It is worth noting that the lithium battery box 5 is in direct contact with the heat-conducting limit plate 8, which are both made of heat-conducting materials. The heat generated by the lithium battery body 7 can be transferred to the battery combination cover 4 through the heat-conducting limit plate 8 and the lithium battery box 5, and finally the heat is dissipated through the joint action of the battery combination cover 4 and the heat dissipation ribs 25 thereon.

[0049] The lithium battery box 5 is provided with wiring terminals 9 connected to the battery combination cover 4 for electrical signal connection. The battery combination cover 4 is provided with a wiring slot 22 adapted to the wiring terminal 9. The inner wall of the wiring slot 22 is provided with a sliding elastic touch plate 23. The battery combination cover 4 is provided with a resisting spring pressure block 24 in contact with the lithium battery pack at the four corners.

[0050] The advantage of adopting the above structure is that in this solution, the lithium battery box 5 and the battery combination cover 4 are elastically connected. In order to ensure better vibration reduction, the two are arranged to be a relatively sliding structure. In order to ensure the effective transmission of electrical signals during sliding, the sliding elastic touch plate 23 in the wiring groove 22 can ensure effective contact with the wiring terminal 9, thereby ensuring the current connection effect.

[0051] When the present invention is assembled, the lithium battery pack is installed on the lithium-electric wrench body 1, and the lithium battery pack and the battery assembly cover 4 are detachably connected through a locking member. When the lithium-electric wrench is used at high power, the internal lithium battery body 7 generates heat, which can be transferred to the battery assembly cover 4 through the lithium battery box 5 and the heat-conducting limit plate 8 for effective heat dissipation.

[0052] During the operation of the lithium battery wrench, when the lithium battery wrench is required to work at different angles for nuts at different angles, the battery assembly cover 4 can be slightly away from the sleeve end seat 3 by pulling the telescopic column 17 outward as needed. At this time, the battery assembly cover 4 is rotated by the universal ball so that the battery assembly cover 4 can be kept in a vertical state. At this time, the lithium battery pack on the battery assembly cover 4 can ensure verticality, and the vibration reduction structure arranged in the lithium battery pack can play a vibration reduction role.

[0053] When the lithium-ion battery wrench is held in hand for work, the load-bearing ring 13 is moved upward. At this time, the mounting end handle 2 is held in hand, and the load-bearing ring 13 cannot move downward due to the obstruction of the hand's base, so that the sleeve end seat 3 connected to it through the "C"-shaped rod 14 is in a state of squeezing the telescopic spring upward to store force in the telescopic spring. When the lithium-ion battery wrench is held in hand for work, the vibration force generated by the lithium-ion battery wrench cannot be directly transmitted to the lithium-ion battery pack, and will be transmitted downward after being buffered and shock-absorbed by the hand, thereby significantly reducing the influence of the lithium-ion battery wrench vibration on the lithium-ion battery pack through the force traction of the human body.

[0054] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A lithium battery wrench for automobile and a lithium battery structure thereof, comprising a lithium battery wrench body (1), characterized in that: The lithium-ion wrench body (1) comprises a wrench housing (101) and a brushless motor (102) arranged on the wrench housing (101); the brushless motor (102) is connected to the wrench housing (101) via shock-absorbing connection end seats (103) arranged at both ends.

2. A lithium battery structure according to claim 1, characterized in that: The invention comprises a lithium battery pack which is detachably mounted on a lithium battery wrench body (1); the lithium battery wrench body (1) is provided with a mounting end handle (2); the mounting end handle (2) is connected to a sleeve end seat (3) via a human body force traction member, and is used to reduce the vibration force exerted on the lithium battery pack by the lithium battery wrench body (1) when working; the sleeve end seat (3) is connected to a battery assembly cover (4) via an angle traction assembly; and the lithium battery pack and the battery assembly cover (4) are detachably connected via a locking member; The lithium battery pack comprises a lithium battery box (5) and a lithium battery base (6), a plurality of lithium battery bodies (7) are arranged on the lithium battery base (6), heat-conducting limit plates (8) adapted to the lithium battery bodies (7) are distributed on the lithium battery base (6), and connection terminals (9) for electrical signal connection with the battery assembly cover (4) are arranged on both sides of the lithium battery box (5).

3. A lithium battery structure according to claim 2, characterized in that: The human body force-bearing traction member comprises a T-shaped telescopic opening (10) provided at the bottom of the mounting end handle (2); a sleeve opening (11) adapted to the mounting end handle (2) is provided on the sleeve end seat (3); a T-shaped piece (12) penetrating into the T-shaped telescopic opening (10) is fixedly arranged at the bottom of the sleeve opening (11); and the T-shaped piece (12) is connected to the inner wall of the T-shaped telescopic opening (10) via a sleeve telescopic spring.

4. A lithium battery structure according to claim 2, characterized in that: A load-bearing ring (13) is sleeved on the mounting end handle (2), and two sides of the load-bearing ring (13) are fixedly connected to the side walls of the sleeve end seat (3) via "C"-shaped rods (14).

5. A lithium battery structure according to claim 2, characterized in that: The angle traction assembly comprises a receiving opening (15) opened in a T-shaped piece (12); the inner wall of the receiving opening (15) is connected to a fixed ball seat (16) via a connecting spring; the fixed ball seat (16) is connected to a telescopic column (17) via a steering ball; the end of the telescopic column (17) is connected to the top of a battery assembly cover (4).

6. A lithium battery structure according to claim 2, characterized in that: The sleeve end seat (3) is provided with a groove (18) adapted to the telescopic column (17). The telescopic column (17) is composed of an outer sleeve and an inner spring column and can achieve telescopic length.

7. A lithium battery structure according to claim 2, characterized in that: The locking member comprises a pressing buckle (19) arranged on the side wall of the battery assembly cover (4); a docking port (20) is provided on the lithium battery box (5); and a sliding buckle opening (21) adapted to the pressing buckle (19) is provided on the docking port (20).

8. A lithium battery structure according to claim 2, characterized in that: The battery assembly cover (4) is provided with a wiring slot (22) adapted to the wiring terminal (9), the inner wall of the wiring slot (22) is provided with a sliding elastic contact plate (23), and the four corners of the battery assembly cover (4) are provided with abutment spring pressure blocks (24) in contact with the lithium battery pack.

9. A lithium battery structure according to claim 2, characterized in that: The battery assembly cover (4) is made of a heat-conducting material, and a heat dissipation rib (25) for increasing a heat exchange area is arranged outside the battery assembly cover (4).

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