Electrical cable connector

An electrical connector includes an insulative housing, a plurality of passageways, a plurality of blade type contacts retained to the retaining grooves in the corresponding passageways, a spacer located in a rear receiving space of the housing with corresponding slits through which tails of the contacts rearwardly extend, and a plurality of wires having the inner conductors soldered upon the tails of the contacts behind the spacer. A waterproof glue plate fills the receiving space of the housing to enclose the exposed inner conductors and the corresponding tails. A plurality of passages are formed in one side of the peripheral wall, through which the wires extend in a vertical direction perpendicular to the horizontal direction along which the contacts extend. The spacer forms a recess to receive a protrusion of the glue plate, and the protrusion is located adjacent to the passages for assuring sealing around said passages.

BACKGROUND OF THE DISCLOSURE

1. Field of the Disclosure

The present disclosure relates to an electrical connector, and particularly to the electrical connector with the associated wires connected to the blade type contacts.

2. Description of Related Arts

The convention cable connector discloses the inner conductors of the wires soldered upon the tails of the blade type contacts behind the rear face of the housing, and a waterproof glue plate is further applied into a rear receiving space of the housing to cover the rear face of the housing. Anyhow, for the wires extending in the vertical direction perpendicular to a horizontal direction along which the contacts extend, the peripheral wall formed by the housing surrounding the receiving cavity is required to form a plurality of passages for allowing the corresponding wires to extend along the vertical direction. Because such passages are aligned with the receiving space in the vertical direction, it may result in leakage during filling the waterproof glue in the receiving space, thus jeopardizing sealing thereabouts.

An improved connector is desired to provide the electrical cable connector with the good waterproofing function for the wires extending in the vertical direction perpendicular to the horizontal direction along which the contacts extend.

SUMMARY OF THE DISCLOSURE

An object of the invention is to provide an electrical connector with an insulative housing, a plurality of passageways, a contact module including a plurality of blade type contacts retained to the retaining grooves in the corresponding passageways, a spacer located in a rear receiving space of the housing and behind the passageways for covering the passageways with corresponding slits through which tails of the contacts rearwardly extend, and a plurality of wires having the inner conductors soldered upon the tails of the contacts behind the spacer. A waterproof glue plate fills the receiving space of the housing to enclose the exposed inner conductors and the corresponding tails. A peripheral wall is formed on a rear side of the housing, and forms therein the aforementioned rear receiving space which further forwardly extends into the rear side of the housing with a distance so as to receive the spacer therein. A plurality of passages are formed in one side of the peripheral wall, through which the wires extend in a vertical direction perpendicular to the horizontal direction along which the contacts extend. The spacer forms a recess to receive a protrusion of the glue plate, and the protrusion is located adjacent to the passages for assuring sealing around said passages.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT

Referring toFIGS. 1-12, an electrical connector1000includes an insulative subassembly100, a plurality of contacts3retained to the insulative subassembly100, a plurality of wires4secured to the contacts3, and a waterproof glue plate5located on a rear side of the insulative subassembly100. The insulative subassembly100is composed of an insulative housing1and an insulative spacer2. The spacer2defines a rear face101and the tails33of the contacts extend rearwardly beyond the rear face101. Each wire4includes an inner conductor41enclosed within an insulator42. The wire4is positioned upon the rear face101and soldered to the corresponding tail33. The glue plate3is located behind and covers the rear face101to further enclose the tails33of the contacts and the front end regions of the wires4. The rear face101forms a recess21, and a corresponding protrusion51of the glue plate5is received within the recess21as shown inFIGS. 8 and 9. The housing1forms a peripheral wall12on the rear side thereof to form therein a rear receiving space122which further forwardly extends into the housing with a distance, in which the spacer2is disposed. A plurality of passages121are formed in one side of the peripheral wall12to snugly receive the corresponding wires4.

The housing1includes a base11, a mating port10forwardly extending from the base11, and the peripheral wall12rearwardly extending from the base11to form the rear portion of the rear receiving space122. The mating port forms a horizontal mating face and a vertical mating face perpendicular to each other. The base11forms a pair of holes at two opposite transverse ends for installation of the corresponding screw nuts105therein. A plurality of dividers13are formed in the mating port10including a middle thicker one 131 and two opposite end walls132. A bottom wall133is connected to the dividers13in the transverse direction. A plurality of slots14are formed between the corresponding dividers13, respectively, to receive the corresponding contacts3and another blade type contact of the mated connector (not shown).

Referring toFIGS. 6 and 6(A), the base11forms a plurality of passageways110along the front-to-back direction. A pair of retaining grooves1101are formed in two opposite lateral sides of the passageway110to receive the two corresponding contacts3. In fact, each contact3has a front contacting section31, a rear tail33and a retaining section32therebetween in the front-to-back direction. The contacting section31is exposed in the corresponding slot14for mating with the aforementioned another blade type contact of the mating connector (not shown). The retaining section32having barbed structures is received within the retaining groove1101to retain the contact3to the housing1. The tail33extends through the corresponding slit22in the spacer2and beyond the rear face101to be exposed within the rear receiving space122for soldering to the inner conductor41of the corresponding wire4. The contacts2include a plurality of power contacts3P and signal contacts3S. The signal contact3S is relatively small and includes only one contacting section31while the power contact3P is relatively large and includes two spaced contacting sections31wherein the signal contacts3S are paired with one longer one and one shorter one spaced from each other in the vertical direction. As shown inFIG. 9(A), there are four contacting sections31commonly disposed within the same one slot14wherein those four contacting sections forms four different contacting points in the front-to-back direction while two levels in the vertical direction. As shown inFIGS. 6(C),8,8(A) and9(A), the spacer2includes three stuffers25on a front face thereof to be received within the corresponding passageways110for not only separating the corresponding two power contacts3(P) from each other in the transverse direction but also enhancing engagement between the spacer2and the housing1.

The wires4are received within the corresponding passages121, respectively, and include the power wires4P corresponding to the power contacts3P, and the signal wires4S corresponding to the signal contacts3S.

The glue plate5is formed in the receiving space122and behind the spacer2for covering the spacer2, the tails33of the contacts3and the exposed inner conductors41and the front end region of the insulators42of the wires4. In this embodiment, the glue plate5is further bulged beyond the receiving space122via a special mold optimally and optionally. The glue plate5further includes a protrusion51received within the recess21so as to enhance the mechanical strength and complete the waterproofing sealing around the passages121, thus advantageously avoiding the possible cracking of the glue plate around the passages121compared with the earlier design in which no recess is formed in the spacer and no protrusion is formed on the glue plate to be retained in the recess around the passages through which the wires extend in a vertical direction perpendicular to the horizontal direction along which the contact extends.

As shown inFIGS. 4 and 7, the housing forms the corresponding passage121to receive a pair of signal wires4S therein while the spacer forms a block27with therein another passage271to receive the upper one of the pair of signal wires4S.

FIGS. 10-12show another embodiment in which the wires extend in the horizontal direction same with the one along which the contacts extend.

While a preferred embodiment in accordance with the present disclosure has been shown and described, equivalent modifications and changes known to persons skilled in the art according to the spirit of the present disclosure are considered within the scope of the present disclosure as described in the appended claims.