TWM579398U - Crimper - Google Patents

Abstract

A crimper for pressing a cable to an electrical connector. The crimper includes a base, an operating handle and a pressing member. The base has a bearing surface. The operating handle is pivoted to the base. The pressing member is disposed on the operating handle. The pressing member and the bearing surface of the base form a slot for receiving the electrical connector. The operating handle is pivotable relative to the base, and the pressing member is moved in a straight line relative to the base between an initial position and a pressing position. The initial position is closer to the bearing surface of the base than the pressing position. When the electrical connector pre-disposed with the cable is inserted into the slot, and the pressing member is moved from the initial position to the pressing position, the pressing member presses the cable to the electrical connector to make the plurality of core wires of the cable They are respectively pierced by a plurality of piercing terminals of the electrical connector.

Description

Crimper

The present invention relates to a crimper, and more particularly to a crimper that allows the press to move linearly.

At present, various signal lines have been widely used for signal transmission. Generally, the signal line includes a cable portion and a joint portion, and the two are assembled by pressing the cable portion to the joint portion, so that the plurality of core wires of the cable portion are respectively punctured by the joint portion. The broken terminals are pierced, and the piercing terminals are electrically connected to the copper cores in the core wires, respectively.

At present, most of the industry presses the cable portion to the joint portion by manual hand pressing. However, since the manual hand pressure may cause the cable portion to be pressed obliquely toward the joint portion, and it is impossible to ensure that all the core wires are pierced by the piercing terminal, it is necessary to develop a crimping tool to avoid the cable portion. Pressing the joints obliquely increases the assembly yield of the signal lines.

The present invention is directed to providing a crimper that solves the problem of prior art manual hand pressure that may cause the cable portion to be skewed toward the joint portion without ensuring that all of the core wires are pierced by the piercing terminal.

A crimper disclosed in one embodiment of the present invention is for pressing a cable to an electrical connector. The crimper includes a base, an operating handle and a pressing member. The base has a bearing surface. The operating handle is pivoted to the base. The pressing member is disposed on the operating handle. The pressing member and the bearing surface of the base form a slot for receiving the electrical connector. The operating handle is pivotable relative to the base, and the pressing member is moved in a straight line relative to the base between an initial position and a pressing position. The initial position is closer to the bearing surface of the base than the pressing position. When the electrical connector pre-disposed with the cable is inserted into the slot, and the pressing member is moved from the initial position to the pressing position, the pressing member presses the cable to the electrical connector to make the plurality of core wires of the cable They are respectively pierced by a plurality of piercing terminals of the electrical connector.

According to the crimper disclosed in the above embodiment, since the operating handle is pivoted relative to the base, the pressing member can be moved from the initial position to the pressing position in a manner that the straight line moves relative to the base, so that the pressing member Allows the cable to positively press the electrical connector. In this way, it can be ensured that the plurality of core wires of the cable are respectively pierced by the plurality of piercing terminals of the electrical connector, thereby improving the yield of the cable pressing to the electrical connector.

The above description of the present invention and the following description of the embodiments are intended to illustrate and explain the principles of the present invention and to provide a further explanation of the scope of the present application.

Please refer to Figure 1 to Figure 3. 1 is a perspective view of a crimper, an electrical connector, and a cable according to a first embodiment of the present invention. 2 is a perspective view of another perspective of FIG. 1. Figure 3 is an exploded perspective view of Figure 1.

This embodiment discloses a crimper 100. The crimper 100 includes a base 110, an operating handle 120, a pivot 130, a pressing member 140, an assembly post 150, and an elastic member 160.

Please refer to Figure 3 to Figure 6. 4 is a cross-sectional view of one of the cut lines of FIG. 1. FIG. 5 is a cross-sectional view showing another cut line of FIG. 1. FIG. Figure 6 is a cross-sectional view showing still another cut line of Figure 1.

The base 110 includes a bottom portion 111, a first side portion 112 and a second side portion 113. The first side portion 112 and the second side portion 113 are respectively connected to opposite sides of the bottom portion 111 and extend in the same direction. The bottom portion 111 has a bearing surface 1111, and the first side portion 112 has a limiting slot 1121, and the second side portion 113 has a limiting slot 1131. In this embodiment, the outer shape of the two limiting slots 1121, 1131 is, for example, an arcuate slot.

The operating handle 120 includes a pivoting portion 121 and an operating portion 122. The pivoting portion 121 is pivotally disposed on the first side portion 112 and the second side portion 113 of the base 110 through the pivot 130 . The pivoting portion 121 has opposite two assembling holes 1211 , and the two assembling holes 1211 are located between the operating portion 122 and the pivot axis P of the operating handle 120 .

The pressing member 140 has two through holes 141. The assembly column 150 is fixed to the two assembly holes 1211 , and the assembly column 150 is movably disposed through the two limiting slots 1121 , 1131 and the second through holes 141 . In the present embodiment, the two through holes 141 of the pressing member 140 have the same diameter R1, and the diameters R1 of the two through holes 141 are larger than the diameter R2 of the portion of the assembly post 150 that passes through the two through holes 141.

In the present embodiment, the number of the through holes 141 of the pressing member 140 is not limited to two. In other embodiments, the nip may have only one perforation.

The elastic member 160 is, for example, a compression spring, and the opposite ends of the elastic member 160 are respectively disposed on the pivoting portion 121 of the operating handle 120 and the pressing member 140.

In the present embodiment, the pressing member 140 and the bearing surface 1111 of the base 110 together form a slot 170. In addition, the first side portion 112 of the base 110 further has a first limiting block 1122 and a first limiting rib 1123. The first limiting block 1122 and the first limiting rib 1123 are located at the slot 170, the first limiting block 1122 extends toward the second side portion 113, and the first limiting block 1122 has a limiting surface facing the bearing surface 1111. 1122a, and the first limiting rib 1123 has a limiting surface 1123a facing the second side portion 113.

In addition, the second side portion 113 further has a second limiting block 1132 and a second limiting rib 1133. The second limiting block 1132 and the second limiting rib 1133 are located in the slot 170, the second limiting block 1132 extends toward the first side portion 112, and the second limiting block 1132 has a limiting surface 1132a facing the bearing surface 1111. The second limiting rib 1133 has a limiting surface 1133a facing the first side portion 112.

In this embodiment, the slot 170 is for receiving an electrical connector 30. The width W1 of the slot 170 is, for example, about 13.5 mm, and the length L1 of the slot 170 is, for example, about 35 mm. The electrical connector 30 is, for example, a connector in the form of a TA34U. The electrical connector 30 includes a head 31, a body portion 32, and a cable management portion 33. The head 31 is connected to the body 32, and the body 32 has a plurality of piercing terminals 321. The cable management unit 33 is for assembly on the body 32. The cable management unit 33 has an incompletely assembled state and a fully assembled state. When the cable management portion 33 is in an incompletely assembled state, the cable management portion 33 is merely placed above the body portion 32 but not completely incorporated into the body portion 32. When the cable management unit 33 is in the fully assembled state, the cable management portion 33 is pressed down to be incorporated in the body portion 32. The width W2 of the head 31 of the electrical connector 30 is about 11.7 mm, and the width W3 of the body 32 is about 12.9 mm, and the length L2 of the electrical connector 30 is about 39.17 mm.

When the electrical connector 30 is inserted into the slot 170, the distance D1 between the limiting surface 1122a of the first limiting block 1122 and the head 31 of the electrical connector 30 and the limiting surface 1132a of the second limiting block 1132 are The distance D2 between the heads 31 is 0.2 mm, and the distance D3 between the limiting surface 1123a of the first limiting rib 1123 and the head 31 and the limiting surface 1133a of the second limiting rib 1133 are The distance D4 between the heads 31 is 0.2 mm. Thereby, the smoothness of the electrical connector 30 inserted into the slot 170 is achieved on the premise that the electrical connector 30 can be shaken after being inserted into the slot 170.

In this embodiment, the first side portion 112 and the second side portion 113 are all arranged in a limited position, and are not intended to limit the present invention. In other embodiments, only the first side portion or the second side limited block may be used, or the first side portion and the second side portion may all be infinite blocks. In addition, the first side portion 112 and the second side portion 113 are both provided with limited ribs, and are not intended to limit the present invention. In other embodiments, the first side portion and the second side portion may each have an infinite rib.

In this embodiment, the pressing member 140 further has a pressing surface 142 and a retaining groove 143. The pressing surface 142 faces the bearing surface 1111 of the base 110, and the positioning groove 143 is recessed from the pressing surface 142 in a direction away from the bearing surface 1111 and communicates with the slot 170. The retaining slot 143 is for receiving a snap tab 311 of the head 31 of the electrical connector 30.

In addition, the operating handle 120 is pivotable relative to the base 110, and the assembly member 150 is driven to move between the initial position and the pressing position. As shown in FIG. 6, when the pressing member 140 is in the initial position, the distance D5 between the pressing surface 142 and the bearing surface 1111 of the base 110 is greater than about 12.3 mm.

The crimper 100 of this embodiment is used to press a cable 20 to the electrical connector 30. The cable 20 includes, for example, a plurality of core wires 21 and a wire sleeve 22. The core wires 21 each include an insulating outer layer (not shown) and a conductive inner layer (not shown), and the wire sleeve 22 covers the core wires 21. Next, how the cable 20 is pressed against the electrical connector 30 through the crimper 100 will be described in detail below.

As shown in FIG. 6, first, one ends of the core wires 21 of the cable 20 are respectively mounted in a plurality of wire grooves which are not assembled to the wire management portion 33 of the body portion 32. Next, the cable management portion 33 is placed above the body portion 32 of the electrical connector 30 in an incompletely assembled state, such that the core wires 21 in the cable management portion 33 are pre-positioned on the piercing terminals 321 of the electrical connector 30, respectively. . Next, in the case where the pressing member 140 is at the initial position, the electrical connector 30 to which the core wires 21 are placed is inserted into the slot 170. Since the overall height H of the cable management portion 33 and the body portion 32 that have not been completely assembled is about 12.3 mm, the distance D5 between the pressing member 140 and the bearing surface 1111 of the base 110 allows the electrical connector 30 to be inserted into the slot 170. Inside. In addition, since the distance D6 of the head 31 of the electrical connector 30 to the one end of the head portion 31 of the electrical connector 30 is approximately equal to 33.6 mm, the electrical connector 30 is inserted into the slot 170, and the cable is connected. 33 will be located in the slot 170, and the pressing surface 142 of the pressing member 140 will face the cable management portion 33.

In the present embodiment, the distance D5 between the pressing member 140 and the bearing surface 1111 of the base 110 is not limited to more than 12.3 mm. In other embodiments, the distance between the nip surface and the bearing surface of the pedestal may be equal to 12.3 mm.

Next, please refer to FIG. 7. FIG. 7 is a cross-sectional view showing the pressing member of FIG. 6 in a pressing position.

The operating portion 122 of the operating handle 120 is pressed against the base 110 such that the operating handle 120 pivots relative to the base 110, and the pressing member 140 is moved from the initial position to the pressing position through the assembly post 150. During the movement of the pressing member 140 from the initial position to the pressing position, the pressing surface 142 of the pressing member 140 gradually moves toward the bearing surface 1111 of the base 110, and the management portion 33 is pressed down to the body 32. . In this way, in the case where the pressing member 140 is at the pressing position, the cable management portion 33 is completely incorporated into the body portion 32, so that the insulating outer layers of the core wires 21 in the wire management portion 33 are respectively pierced by the piercing terminals. The 321 is pierced, and the conductive inner layers of the core wires 21 are electrically connected to the piercing terminals 321 respectively, and the cable 20 is pressed into the electrical connector 30.

In practical experience, if the wire gauge of the core wire 21 is 22 AWG, the force applied to the operating portion 122 of the operating handle 120 to move the pressing member 140 from the initial position to the pressing position requires a force of 15.26 KG. It is sufficient that the plurality of core wires 21 in the wire management portion 33 are respectively pierced by the piercing terminals 321. On the other hand, if these core wires 21 are in the form of 24 AWG, the force applied to the operating handle 120 requires only a force of 5.78 KG.

Since the diameter R1 of the two through holes 141 of the pressing member 140 is larger than the diameter R2 of the assembly post 150, and the opposite ends of the elastic member 160 abut against the pivoting portion 121 and the pressing member 140 of the operating handle 120, respectively, the pressing is performed. During the movement of the member 140 from the initial position to the pressing position, the elastic force of the elastic member 160 maintains the assembly post 150 tangential to the two perforations 141, and the pressing member 140 moves in a straight line relative to the base. Therefore, the pressing member 140 allows the cable management portion 33 to positively press the body portion 32 of the electrical connector 30, thereby ensuring that the plurality of core wires 21 in the wire management portion 33 are respectively pierced by the plurality of piercing terminals 321 of the body portion 32. The puncture, and thus the yield of the cable 20 being pressed against the electrical connector 30.

In addition, since the assembly column 150 is located between the pivot axis P of the operating handle 120 and the operating portion 122 of the operating handle 120, the force applying arm formed during the application of the operating portion 122 may be greater than the pressing member 140. The anti-force arm generated by the cable management unit 33 is used to achieve a labor-saving effect.

Moreover, as shown in FIG. 6, in the case where the pressing member 140 is in the pressing position, the snap tab 311 of the electrical connector 30 is located in the retaining groove 143, and the pressing member 140 and the electrical connector can be avoided. The snap tab 311 of 30 produces interference.

In the above description, the electrical connector 30 is described as an example of the TA34U, but is not limited thereto. In other embodiments, the electrical connector can also be in the form of a TA34S. That is, the crimper 100 of the present embodiment is suitable for joints in the form of TA34S and TA34U.

In addition, as shown in FIG. 1 and FIG. 4, the bottom portion 111 of the base 110 of the embodiment further has an outer surface 1112 and a plurality of anti-slip structures 1113, and the operating portion 122 of the operating handle 120 has an outer surface 1221 and a plurality. A slip-stop structure 1222. The outer surface 1112 of the bottom portion 111 faces away from the outer surface 1221 of the operating portion 122. These anti-slip structures 1113, 1222 are, for example, bump structures. The anti-slip structure 1113 of the bottom portion 111 is located on the outer surface 1112 thereof, and the anti-slip structure 1222 of the operating portion 122 is located on the outer surface 1221 thereof. In this way, when the user holds the crimper 100 by hand, the anti-slip structures 1113, 1222 can increase the friction between the hand and the crimper 100 to achieve the anti-slip effect.

In the present embodiment, these anti-slip structures 1113 are not limited to being disposed only on the outer surface 1112 of the bottom portion 111. In other embodiments, the anti-slip structures can be disposed on the outer surfaces of the first side, the second side, and the bottom simultaneously. Similarly, in other embodiments, the anti-slip structures may be simultaneously disposed on the pivoting portion of the operating handle and the outer surface of the operating portion.

Further, the number of the anti-slip structures 1113 of the bottom portion 111 is not limited to a plurality. In other embodiments, the number of the anti-slip structures at the bottom may be one, and the anti-slip structure is, for example, a groove. Similarly, the number of the anti-slip structures of the operating portion of the operating handle may also be one, and the anti-slip structure is, for example, a groove. Alternatively, the bottom and the operating portion of the operating handle may have no anti-slip structure.

According to the crimper of the above embodiment, since the operating handle is pivoted relative to the base, the pressing member can be moved from the initial position to the pressing position in a manner that the straight line moves relative to the base, so that the pressing member can make the pressing member The cable is positively crimped to the electrical connector. In this way, it can be ensured that the plurality of core wires of the cable are respectively pierced by the plurality of piercing terminals of the electrical connector, thereby improving the yield of the cable pressing to the electrical connector.

In addition, since the assembly column is located between the pivot axis of the operating handle and the operating portion of the operating handle, the force applying arm formed during the application of the operating portion is greater than the pressing member abutting the cable management portion. Produce the resistance arm to achieve a more labor-saving effect.

Furthermore, since the crimper of this embodiment has a simple structure, its production cost is relatively low. Therefore, it is advantageous to popularize the crimper, so that a general user or a manufacturer can easily use a crimper to press the cable to the electrical connector.

Although the present invention has been described above in terms of the preferred embodiments thereof, it is not intended to limit the present invention, and it is intended that those skilled in the art can make some modifications and refinements without departing from the spirit and scope of the present invention. The scope of the new patent protection shall be subject to the definition of the scope of the patent application attached to this specification.

100‧‧‧Threader  110‧‧‧Base  111‧‧‧ bottom  1111‧‧‧ bearing surface  1112‧‧‧ outer surface  1113‧‧‧Slip-stop structure  112‧‧‧ first side  1121‧‧‧ Limit slot  1122‧‧‧First Limit Block  1123‧‧‧First limit rib  113‧‧‧ second side  1131‧‧‧ Limit slot  1132‧‧‧second limit block  1133‧‧‧second limit rib  1122a, 1123a, 1132a, 1133a‧‧‧ limiting surfaces  120‧‧‧Operation handle  121‧‧‧ pivotal department  1211‧‧‧Assembled holes  122‧‧‧Operation Department  1221‧‧‧ outer surface  1222‧‧‧Slip-stop structure  130‧‧‧ pivot  140‧‧‧ Pressing parts  141‧‧‧Perforation  142‧‧‧Fitting surface  143‧‧‧Let the slot  150‧‧‧Assembled column  160‧‧‧Flexible parts  170‧‧‧ slots  20‧‧‧ cable  21‧‧‧core  22‧‧‧Wire set  30‧‧‧Electrical connector  31‧‧‧ head  311‧‧‧Snap snaps  32‧‧‧ Body  321‧‧‧ piercing terminal  33‧‧‧Management Department  P‧‧‧ axis  R1, R2‧‧‧ diameter  W1, W2, W3‧‧‧ width  L1, L2‧‧‧ length  D1, D2, D3, D4, D5, D6‧‧‧ distance  H‧‧‧ Height  

1 is a perspective view of a crimper, an electrical connector, and a cable according to a first embodiment of the present invention.  2 is a perspective view of another perspective of FIG. 1.  Figure 3 is an exploded perspective view of Figure 1.  4 is a cross-sectional view of one of the cut lines of FIG. 1.  FIG. 5 is a cross-sectional view showing another cut line of FIG. 1. FIG.  Figure 6 is a cross-sectional view showing still another cut line of Figure 1.  Figure 7 is a cross-sectional view of the pressing member of Figure 6 in a pressed position.  

Claims (14)

A crimper for pressing a cable to an electrical connector, the crimper comprising:  a base having a bearing surface; an operating handle pivotally disposed on the base; and a pressing member disposed on the operating handle, the pressing member and the bearing surface of the base form a slot The socket is configured to receive the electrical connector; wherein the operating handle is pivotable relative to the base, and the pressing member is moved along a line between the initial position and the pressing position relative to the base. The initial position is away from the bearing surface of the base than the pressing position, when the electrical connector pre-disposed with the cable is inserted into the slot, and the pressing member moves from the initial position to the pressing position The pressing member presses the cable to the electrical connector such that the plurality of core wires of the cable are respectively pierced by the plurality of piercing terminals of the electrical connector.   The crimping device of claim 1, further comprising an assembly column having opposite second limiting slots, the operating handle having opposite two assembly holes, the two assembly holes respectively corresponding to the second limit The locating member has at least one through hole, and the assembly column is fixed to the two assembly holes, and the assembly column is movably disposed through the two limiting slots and the at least one through hole. The crimper of claim 2, wherein the diameter of the at least one perforation of the pressing member is larger than the diameter of the portion of the assembly post that is inserted through the at least one perforation. The crimping device of claim 3, further comprising an elastic member, the opposite ends of the elastic member being respectively disposed on the operating handle and the pressing member, wherein the pressing member moves from the initial position to During the pressing position, the elastic force of the elastic member maintains the assembly column tangential to the at least one perforation. The crimping device of claim 1, wherein the base comprises a bottom portion, a first side portion and a second side portion, wherein the first side portion and the second side portion are respectively connected to the bottom portion The first side portion has a first limiting block, the first limiting block is located in the slot, and the first limiting block faces the The second limiting portion has a limiting surface facing the bearing surface. When the electrical connector is inserted into the slot, the electrical connector is located at the first limiting block and the bearing surface And the limiting surface is kept at a distance from the electrical connector. The crimping device of claim 5, wherein the second side portion has a second limiting block, the second limiting block is located in the slot, and the second limiting block faces the first side The second limiting block has a limiting surface facing the bearing surface. When the electrical connector is inserted into the slot, the electrical connector is located between the second limiting block and the bearing surface. And the limiting surface of the second limiting block is kept at a distance from the electrical connector. The crimping device of claim 6, wherein the distance between the limiting surface of the first limiting block and the electrical connector and the limiting surface of the second limiting block are This distance between the electrical connectors is 0.2 mm. The crimping device of claim 5, wherein the first side portion further has a first limiting rib, and the second side portion further has a second limiting rib, the first limit The rib and the second limiting rib are located in the slot, the first limiting rib has a limiting surface facing the second side, the second limiting rib has a first side facing a limiting surface, when the electrical connector is inserted into the slot, the electrical connector is located between the limiting surface of the first limiting rib and the limiting surface of the second limiting rib, And the limiting surface of the first limiting rib and the limiting surface of the second limiting rib are both at a distance from the electrical connector. The crimping device of claim 8, wherein the distance between the limiting surface of the first limiting rib and the electrical connector and the limiting surface of the second limiting rib The distance between the electrical connector and the electrical connector is 0.2 mm. The crimper of claim 1, wherein the width of the slot is 13.5 mm and the length of the slot is 35 mm. The crimping device of claim 1, wherein the pressing member has a pressing surface facing the bearing surface of the base, and the electrical connector pre-disposed with the cable is inserted into the insertion In the case of the groove, the pressing surface faces the cable, and when the pressing member is in the initial position, the distance between the pressing surface and the bearing surface of the base is greater than or equal to 12.3 mm. The crimping device of claim 11, wherein the pressing member has a retaining groove formed by the recessing surface and communicating with the slot, the retaining slot for receiving a snap tab of the electrical connector. The crimping device of claim 2, wherein the operating handle comprises a pivoting portion and an operating portion, the pivoting portion is pivotally disposed on the base, and the two assembling holes are located at the pivoting portion. And the two assembly holes are located between the operating portion and the pivot axis of the operating handle. The crimping device of claim 1, wherein the base and the operating handle each have an outer surface and a sliding structure, the outer surface of the base facing away from the outer surface of the operating handle, The anti-slip structure of the base is located on the outer surface of the base, and the anti-slip structure of the operating handle is located on the outer surface of the operating handle.