Connecting terminal for storage battery

• US 9,022,815 B2
• Filed: 01/14/2013
• Issued: 05/05/2015
• Est. Priority Date: 11/15/2012
• Status: Active Grant

• Current Assignee: Chang Hwan Precision Terminal Co., Ltd.
• Original Assignee: Chang Hwan Precision Terminal Co., Ltd.
• Inventors: Kim, Hwan Chang
• Primary Examiner(s): Riyami, Abdullah
• Assistant Examiner(s): Imas, Vladimir
• Application Number:
  US13/740,537
• Publication Number:
  US 20140134896A1
• Time in Patent Office: 841 Days
• Field of Search: 439/762, 439/758
• US Class Current: 439/762
• CPC Class Codes: H01R 11/281 for connections to batteries
• CPC Class Codes: H01R 11/283 Bolt, screw or threaded ferrule parallel to the battery post

Abstract

The storage battery connection terminal comprising: an insertion unit formed in a shape of a curved; a clamping unit formed by extending end portions of the insertion; and a power withdrawal unit formed to be extended from the other end portion of the insertion unit, in which the insertion unit, the clamping unit and the power withdrawal unit are manufactured by molding a single panel. The clamping unit includes a lower plate formed to be inclined by extending one end portion of the insertion unit so as to support the clamping bolt, and an upper plate formed to be inclined by extending the other end portion of the insertion unit so as to be disposed in parallel to the lower plate, on which the clamping nut is rested.

Claims

1. In a storage battery connection terminal comprising:

an insertion unit formed in a shape of a curved cylinder so that a post terminal of a storage battery may be inserted and combined;

a clamping unit formed by extending end portions of the insertion unit toward outside so as to combine or separate the insertion unit to or from the post terminal by adjusting a diameter of the insertion unit as a gap in the clamping unit is changed depending on a position where a clamping bolt and a clamping nut are engaged; and

a power withdrawal unit formed to be extended from the other end portion of the insertion unit and provided with a connection bolt to which a connection terminal for withdrawing power is connected, wherein the insertion unit, the clamping unit and the power withdrawal unit are manufactured by molding a single panel,

the clamping unit includes a lower plate formed to be inclined by extending one end portion of the insertion unit so as to support the clamping bolt, and an upper plate formed to be inclined by extending the other end portion of the insertion unit so as to be disposed in parallel to the lower plate, on which the clamping nut is rested, wherein

bolt fixing pieces for fixing the clamping bolt are formed to be integrated with the lower plate by bending both width direction ends of the lower plate downward, and a guide piece is formed to be integrated with the upper plate by bending one width direction upper end of the upper plate downward so as to prevent the clamping nut not to be tightened further more when the upper plate and the lower plate are stably contacted and a contacting force arrive at a threshold value, the clamping bolt is installed to be perpendicular to a bottom surface so that a body of the clamping bolt may penetrate the lower plate and the upper plate, and the clamping nut is engaged with the clamping bolt with intervention of a beveled washer between the upper plate and the clamping nut so that the clamping nut can be engaged with the clamping bolt from a direction perpendicular to the bottom surface.

2. The terminal according to claim 1, wherein a silicon coating layer is formed on an inner surface of the clamping nut.

3. The terminal according to claim 1, wherein a plurality of clamping projections is formed on an inner surface of the insertion unit at regular intervals along a height direction.

4. The terminal according to claim 1, wherein a neck part connecting the insertion unit and the power withdrawal unit is bent to be inclined upward and bent again in a horizontal direction to have a z-bending structure.

5. The terminal according to claim 1, wherein the power withdrawal unit includes rotation prevention pieces, both width direction ends of which are bent downward to prevent rotation of the connection bolt, and fixing pieces bent toward from a middle of the rotation prevention piece to a bottom of the connection bolt to support the connection bolt.

6. The terminal according to claim 5, wherein the power withdrawal unit is further provided with a bit hole formed by pressing an outer bottom surface of the rotation prevention piece and a position determination projection protruded toward a top surface in correspondence to the bit hole.

7. The terminal according to claim 1, wherein the clamping bolt is installed to penetrate the lower plate and the upper plate in a direction perpendicular to a plate surface of the lower plate and to be inclined with respect to the insertion unit, and the clamping nut is engaged with the clamping bolt in an inclined direction with respect to the insertion unit, wherein a reinforce unit is prominently formed from a lower portion of the upper plate toward the top surface of the upper plate to improve strength of the upper plate and restrict movement of the clamping nut.

8. The terminal according to claim 7, wherein the bolt fixing piece includes a rotation preventing piece for restricting rotation of the clamping bolt and a fixing piece bent down from a middle of the rotation piece to a position below the clamping bolt to fix the clamping bolt.

9. The terminal according to claim 1, wherein a head of the clamping bolt is formed to be inclined so that a bottom surface to which the body is connected can be surface-contacted with a bottom surface of the lower plate, and a top surface of the head is formed as a curved surface so as to be fixed by the bent bolt fixing piece, wherein the beveled washer is formed such that a portion contacting with the upper plate is formed as an inclined surface, and a surface contacting with the clamping nut is formed as a horizontal surface.

10. The terminal according to claim 1, further comprising a washer rotation prevention piece formed by bending an end of the upper plate upward to prevent departure of the beveled washer.