Handle fixing apparatus for battery pack

Abstract

The present invention includes a handle (300) rotatably fixed in an upper case (100) of a battery pack; the upper case (100) includes a fitting means (131) protruding to be fitted into the tip of the handle (300), a guide groove (133) extending inwardly from a wall surface to limit and guide the rotation range of the handle (300), and a fixing groove (132) inwardly positioned between the fitting means (131); the handle (300) includes a fitting hole (331) penetrating from the tip to be fitted with the fitting means (131), a rotational projection (334) formed protruding from the tip to move the guide groove (133) according to the rotation direction of the handle (300), and a fixing projection (333) protruding between the fitting hole (331) and fastened to the fixing groove (132) to fix the handle (300).

Description

Technology Field

[0001] The present invention relates to a handle fixing device for a battery pack. Background Technology

[0002] Generally, automotive lead-acid batteries and lithium batteries are heavy, so handles have been added for convenience during transport and assembly processes.

[0003] Therefore, in the past, various connection structures were attempted to connect a handle to the top of the battery; typically, a fitting groove is formed in the battery cover, and a fitting projection is formed in the handle to be inserted into this fitting groove for connection.

[0004] At this time, various interlocking structures were added to prevent the handle from coming off when transporting the battery by holding it, but rattle noise caused by handle play occurred.

[0005] In other words, conventionally, a complex structure was added to prevent the handle from coming off, but there was a problem in that it was difficult to prevent rattle noise caused by play. Prior art literature

[0006] Korean Patent Publication No. 10-1394707 (May 7, 2014) The problem to be solved

[0007] The present invention was devised to solve the aforementioned conventional problems, and the objective of the present invention is to provide a handle fixing device for a battery pack that can simplify the structure compared to existing handle fastening structures, strengthen the fixing structure, and prevent play by controlling the rotation range. means of solving the problem

[0008] An embodiment of the present invention provides a handle fixing device for a battery pack comprising a handle rotatably fixed in an upper case of a battery pack, wherein the upper case includes a fitting means protruding to be fitted into the tip of the handle, a guide groove extending inwardly from a wall surface to limit the rotational range of the handle and guide the rotational direction, and a fixing groove inwardly positioned between the fitting means, and the handle includes a fitting hole penetrating from the tip to be fitted with the fitting means, a rotational projection formed protruding from the tip to move the guide groove according to the rotational direction of the handle, and a fixing projection protruding between the fitting hole and fastened to the fixing groove to fix the handle.

[0009] In the above embodiment, the upper case includes at least one rib that protrudes from the wall of an inwardly facing receiving groove to embed the handle and generates friction with the handle.

[0010] In addition, the upper case further includes an inwardly oriented stopper spaced apart from the lower side of the guide groove.

[0011] In addition, the insertion means is rod-shaped protruding from the wall of the upper case and further includes an anti-detachment projection protruding from one side, and the handle further includes an anti-detachment groove that is inwardly oriented toward the tip so as to extend from the insertion hole and into which the anti-detachment projection is engaged.

[0012] In addition, the rotating projection and the fixed projection are characterized by being installed at the same height with a fitting hole in between. Effects of the invention

[0013] Therefore, the present invention allows the fastening structure between the handle and the battery case to be simplified compared to conventional methods, thereby facilitating the assembly and manufacturing processes, and by setting the maximum value of the rotation range, it is possible to prevent handle play while simultaneously controlling the rotation range. Brief explanation of the drawing

[0014] FIG. 1 is a perspective view illustrating a battery pack according to the present invention. FIG. 2 is a perspective view showing the upper case of a battery pack. Figure 3 is a front view showing an enlarged view of the joint. Figure 4 is a perspective view illustrating a handle. Figure 5 is an enlarged view of the fastening part of the handle. Specific details for implementing the invention

[0015] Although the present invention may be subject to various modifications and may have various embodiments, specific embodiments are to be described in detail by way of illustration in the drawings. This is not intended to limit the present invention to specific embodiments, and it should be understood that any modification, equivalent, or substitution falls within the spirit and scope of the present invention for connecting and / or fixing structures extending in different directions.

[0016] The terms used in this specification are used merely to describe specific embodiments and are not intended to limit the invention. The singular expression includes the plural expression unless the context clearly indicates otherwise.

[0017] In this specification, terms such as “comprising” or “having” are intended to specify the existence of the features, numbers, steps, actions, components, parts, or combinations thereof described in the specification, and should not be understood as precluding the existence or addition of one or more other features, numbers, steps, actions, components, parts, or combinations thereof.

[0019] Hereinafter, a preferred embodiment of a handle fixing device for a battery pack according to the present invention will be described with reference to the accompanying drawings.

[0020] FIG. 1 is a perspective view illustrating a battery pack according to the present invention, FIG. 2 is a perspective view illustrating an upper case of the battery pack, and FIG. 3 is an enlarged view illustrating a coupling part.

[0021] Referring to FIGS. 1 to 3, the battery pack includes an upper case (100) and a lower case (200), a handle (300) which is rotatably fixed and coupled to the side of the upper case (100), and positive (+) and negative (-) poles (400) which protrude from the upper case (100) at a distance from each other.

[0022] The upper case (100) is fastened to the top of the lower case (200) to seal the space in which the battery cell, BMA, and BMS board are accommodated inside. Here, the upper case (100) has a pole hole (not given a drawing number) formed so that positive (+) and negative (-) poles (400) protrude, and includes a rotating part (110) that forms a space in which the tip of the handle (300) rotates, a receiving part (120) that accommodates the handle (300), and a coupling part (130) that is coupled to support the handle (300) rotatably.

[0023] The pivoting portion (110) forms a downward space on the upper surface of the upper case (100) to form a space in which the end of the handle (300) connected to the coupling portion (130) rotates. Here, the pivoting portion (110) is composed of a pair spaced apart from each other as they each form a space in which the two ends of the handle (300) are connected. Additionally, the pivoting portion (110) is connected to the receiving portion (120), and the downward depth has a larger value than that of the receiving portion (120).

[0024] The receiving portion (120) is an inwardly oriented groove on the upper surface of the upper case (100) and includes a pair of first receiving grooves (121) that extend from the rotating portion (110) and extend in a first direction, and a second receiving groove (122) that extends in a direction intersecting the first direction between the first receiving grooves (121). Here, the first receiving groove (121) and the second receiving groove (122) are connected.

[0025] Additionally, the second receiving groove (122) further includes an inwardly oriented insertion groove so that the user's finger can be inserted.

[0026] Additionally, the second receiving groove (122) includes at least one rib (122a) protruding from one side wall.

[0027] Additionally, the receiving portion (120) has a 'U' shape as shown in the drawing, but this is not limited to that and can be modified according to the shape of the handle (300).

[0028] The connecting part (130) is formed in each of the pair of rotating parts (110) spaced apart from each other in the upper case (100) and is fastened to the end of the handle (300) to limit and fix the range of rotation.

[0029] More specifically, the coupling part (130) includes a fitting means (131) that is fitted into the handle (300), a guide groove (133) formed as an inwardly facing groove on the wall surface of the rotating part (110) to limit the rotatable range, a fixing groove (132) that fixes the handle (300), and a stopper (134) that limits rotation by setting a maximum rotation value.

[0030] The insertion means (131) is rod-shaped and protrudes from the wall surface of the rotating part (110), and is protruded laterally from one side of the tip to be fastened to the handle (300). Here, the insertion means (131) includes a detachment prevention projection (131a) protruding to one side to prevent detachment when the handle (300) rotates.

[0031] The guide groove (133) is an inwardly facing groove on the wall of the pivot part (110) and extends downward in a curved direction.

[0032] The stopper (134) is formed as a groove facing inward on the wall of the pivot part (110), spaced apart from the lower end of the guide groove (133).

[0033] The fixed groove (132) is formed as a groove facing inward from the wall surface of the rotating part (110) in the opposite direction with the insertion means (131) in between. Here, the upper side of the guide groove (133) and the fixed groove (132) have the same height.

[0034] The detailed configuration of such a coupling part (130) is combined with the handle (300) fastening part (330) described below to limit the rotational range of the handle (300) and strengthen the fixed structure. The detailed configuration of such a coupling part (130) is described in detail with reference to FIGS. 4 and 5, along with the fastening structure of the handle (300) fastening part (330).

[0035] FIG. 4 is a perspective view showing the handle, and FIG. 5 is an enlarged view showing the fastening part of the handle.

[0036] Referring to FIGS. 4 and 5, the handle (300) includes a pair of tip portions (310) extending in one direction from both ends, a connecting portion (320) extending in a direction intersecting the extension direction of the tip portions (310) and connecting the tip portions (310), and a fastening portion (330) that is coupled to the coupling portion (130) of the upper case (100) from the tip portions (310).

[0037] A pair of leading portions (310) extend in a direction intersecting the connecting portion (320), and their ends are positioned in the pivot portion (110) of the upper case (100). Here, the ends of the leading portions (310) extend to form a curved surface protruding downward from one side so as to be rotatable within the pivot portion (110), which is formed by a downward groove, and are received across the pivot portion (110) and the first receiving groove (121).

[0038] The connecting part (320) can be extended between the leading part (310) and received into the second receiving groove (122) of the upper case (100), or can be disengaged from the second receiving groove (122) and stand upright by operation of the user.

[0039] Here, the connecting portion (320) is formed with at least one rib (321) protruding from one side. The rib (321) generates frictional force with the wall surface of the second receiving groove (122) to prevent unauthorized detachment of the connecting portion (320).

[0040] Here, the rib (122a) formed on the wall surface of the second receiving groove (122) is positioned so as to be in close contact with the wall surface opposite to the wall surface where the rib (321) of the connecting part (320) is formed.

[0041] That is, in the present invention, ribs (122a, 321) may be formed on the connecting part (320) of the handle (300) and on the wall surface of the second receiving groove (122) of the upper case (100), respectively, or may be formed on only one of them.

[0042] The fastening portion (330) includes a fitting hole (331) into which a fitting means (131) is inserted to be fastened to the coupling portion (130) of the upper case (100) at the tip portion (310), a detachment prevention groove (332) extending to one side from the fitting hole (331), a fixing projection (333) protruding from one side of the tip portion (310) and fastened to the fixing groove (132), and a rotating projection (334) that moves along the guide groove (133).

[0043] The insertion hole (331) is formed through both sides of the tip portion (310). The shape of such an insertion hole (331) is formed according to the outer shape of the insertion means (131).

[0044] The anti-detachment groove (332) is formed extending from the insertion hole (331) inwardly to the tip portion (310) and accommodates the anti-detachment projection (131a) protruding from the outer surface of the insertion means (131).

[0045] The rotating projection (334) moves up and down along the guide groove (133) which extends in a curved direction from the wall surface of the rotating part (110). Here, when additional force is applied when the rotating projection (334) is positioned at the end of the guide groove (133), it detaches from the guide groove (133) and moves to the stopper (134) to be fixed.

[0046] To explain with reference to the drawing, the guide groove (133) and the stopper (134) are each formed as grooves facing inward on the wall of the rotating part (110), and between them, there is a wall of the rotating part (110) that is not facing inward. Accordingly, the rotational projection (334) moving along the guide groove (133) stops rotating at the end of the guide groove (133) and, when additional force is applied, moves past the guide groove (133) and settles on the stopper (134).

[0047] At this time, the user can hear a ‘click’ sound when the rotating projection (334) (334) moves past the guide groove (133) to the stopper (134).

[0048] That is, the guide groove (133) and the stopper (134) limit the rotation range of the handle (300) and simultaneously generate noise to issue an alarm to the user.

[0049] The fixed projection (333) is formed to protrude from the opposite side of the rotating projection (334) with the insertion hole (331) in between. For example, the fixed projection (333) is inserted into the fixing groove (132) when the handle (300) is rotated with the insertion means (131) inserted into the insertion hole (331). At this time, the fixing groove (132) is positioned in a mutually inclined direction with the stopper (134) and the insertion hole (331) in between, and the rotating projection (334) and the fixed projection (333) are formed at the same height with the insertion hole (331) in between.

[0050] Therefore, when the user has not rotated the handle (300), the handle (300) is embedded in the first receiving groove (121) and the second receiving groove (122) of the upper case (100). At this time, the fixing projection (333) is fastened to the fixing groove (132), the rotating projection (334) is on the upper side of the guide groove (133), and the connecting part (320) of the handle (300) maintains a rigid fixed state as the rib (321) is in close contact with the wall of the second receiving groove (122).

[0051] At this time, when the user grasps the handle (300) and rotates it upward, the fixed projection (333) is disengaged from the fixed groove (132), and the rotating projection (334) rotates downward along the guide groove (133). When the maximum rotation value is reached, it moves past the guide groove (133) to the stopper (134), thereby restricting the rotation of the handle (300).

[0053] In this way, the present invention can achieve structural simplification and, by proposing a stronger fixing structure compared to the simplified structure, can achieve robustness.

[0055] Although an embodiment of the present invention has been described above, those skilled in the art may modify and change the present invention in various ways by adding, changing, deleting, or adding components, etc., without departing from the spirit of the present invention as described in the claims, and such modifications and changes are also to be included within the scope of the rights of the present invention.

[0056] Furthermore, the aforementioned terms are defined in consideration of their functions within the present invention, and these may vary depending on the intent or practice of the user or operator. Therefore, the definitions of these terms should be based on the content throughout this specification. Explanation of the symbols

[0058] 100: Upper case 110: Rotating part 120 : Reception section 121 : 1st reception home 122 : 2nd receiving groove 122a, 321 : Rib 130 : Connecting part 131 : Insertion means 131a: Anti-detachment protrusion 132: Fixing groove 133 : Guide groove 134 : Stopper 200 : Lower case 300 : Handle 310 : Tip 320 : Connecting part 330 : Fastening part 331 : Insertion hole 332: Anti-detachment groove 333: Fixing projection 334 : Rotating projection 400 : Polar projection

Claims

Claim 1 A handle (300) rotatably fixed in an upper case (100) of a battery pack; wherein the upper case (100) comprises a fitting means (131) protruding to be fitted into the tip of the handle (300), a guide groove (133) extending inwardly from a wall surface to limit the rotation range of the handle (300) and guide the rotation direction, and a fixing groove (132) inwardly positioned between the fitting means (131); A handle fixing device for a battery pack, comprising: a stopper (134) spaced apart from the lower side of the guide groove (133) to restrict rotation of the handle; and a handle (300) having a fitting hole (331) that penetrates at the tip and into which a fitting means (131) is fitted, a rotational projection (334) formed protruding from the tip and moving along the guide groove (133) according to the rotational direction of the handle (300), and a fixing projection (333) that protrudes with the fitting hole (331) in between and is fastened to the fixing groove (132) to fix the handle (300). Claim 2 A handle fixing device for a battery pack, characterized in that, in claim 1, the upper case (100) includes at least one rib (122a) that protrudes from the wall of an inwardly oriented receiving groove into which the handle (300) is embedded and generates friction with the handle (300). Claim 3 delete Claim 4 A handle fixing device for a battery pack according to claim 1, wherein the stopper (134) is formed as a groove facing inward from the wall surface and into which a rotating projection that has escaped the guide groove is inserted. Claim 5 A handle fixing device for a battery pack, characterized in that, in claim 1, the fitting means (131) further includes a detachment prevention projection (131a) protruding to one side from the outer surface, and the handle (300) further includes a detachment prevention groove (332) in which the detachment prevention projection (131a) is fastened, which is inwardly directed toward the tip portion (310) so as to extend from the fitting hole (331). Claim 6 A handle fixing device for a battery pack, characterized in that, in claim 1, the rotating projection (334) and the fixed projection (333) are installed at the same height with the fitting hole (331) in between.

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