TWM505076U - Electrical connector - Google Patents

Description

Electrical connector

The present invention relates to an electrical connector, particularly an electrical connector for electrically connecting two separate circuit boards, and to prevent solder from climbing to the insulative housing of the electrical connector.

In order to electrically connect two independent circuit boards, two independent circuit boards are usually connected by soldering or by wires, and two independent circuit boards after soldering cannot be replaced, so an electrical connector is derived. Two separate circuit boards are electrically connected respectively. However, since the electrical connector must be soldered to a circuit board, when the insulating body and the terminal of the electrical connector are poorly designed, the solder may climb, affect the bonding strength, or the terminal and the The insulating body is in contact with each other to cause the electrical connector to be skewed to the circuit board.

The main purpose of the present invention is to provide an electrical connector including an insulative housing and a plurality of terminals, the insulative housing having a first plate body, a second plate body, a rear plate body, and a first a socket between the board and the second board, the two ends of the back board are connected to the first board and the second board, the back board has a plurality of through holes, and the through holes communicate with the The insertion slot has a plug-in interface, and each of the terminals penetrates the through-hole and is coupled to the insulative housing, and each of the terminals has an integrally formed fixing portion, a contact portion and a pin. a portion is disposed between the contact portion and the pin, the fixing portion is disposed in the through hole of the rear plate body, the contact portion is received in the insertion slot, and each of the pins is exposed outside the insulating housing. The pin has a first lateral gap with the first plate.

By the first lateral gap between each of the pins and the first plate body, solder can be prevented from climbing to the insulating housing of the electrical connector, thereby causing insufficient solder of the terminal and the circuit board to affect electrical properties or cause Open circuit.

Referring to FIGS. 1 and 2, an electrical connector 100 is used to electrically connect two independent circuit boards. The electrical connector 100 is pre-bonded to a first circuit board 200. The electrical connector 100 is soldered ( The second circuit board 300 is inserted into the electrical connector 100 to electrically connect the electrical connector 100 to the first circuit board 200, and then the second circuit board 300 is inserted into the electrical connector 100. The first circuit board 200 and the second circuit board 300.

Referring to Figures 1, 2 and 3, the electrical connector 100 includes an insulative housing 110 and a plurality of terminals 120. The insulative housing 110 has a first plate 111, a second plate 112, and a rear plate. The body 113 and the insertion slot 114 between the first plate body 111 and the second plate body 112, the two ends of the rear plate body 113 are connected to the first plate body 111 and the second plate body 112, The rear plate body 113 has a plurality of through holes 113a, and the through holes 113a communicate with the insertion groove 114. The insertion groove 114 has a plug interface 114a.

Referring to FIG. 3, in the embodiment, the first plate body 111 has a first inner surface 111a and a first outer surface 111b. The first inner surface 111a faces the second plate 112, and the second The plate body 112 has a second inner surface 112a, a second outer surface 112b, and a plurality of slots 112c recessed in the second inner surface 112a. The slots 112c communicate with the through holes 113a of the rear plate 113. .

Referring to FIG. 3, FIG. 4 and FIG. 5, each of the terminals 120 is inserted into each of the through holes 113a and coupled to the insulating housing 110. Each of the terminals 120 has a fixed portion 121, a contact portion 122 and a pin. The fixing portion 121 is located between the contact portion 122 and the pin 123. Referring to FIG. 4, the fixing portion 121 is disposed in the through hole 113a of the rear plate body 113. The contact portion 122 is received. Each of the pins 123 is exposed outside the insulating housing 110. In the embodiment, the pins 123 are soldered to the first circuit by solder (not shown, such as solder paste). A plurality of conductive pads 210 of the board 200, each of the pins 123 and the first board 111 has a first lateral gap D1, which prevents the solder from climbing to the first board 111. In order to avoid the reduction of the solder connecting the pins 123 and the pads 210, the bonding strength of each of the pins 123 and each of the pads 210 is affected, and the first lateral gap D1 can be avoided. The terminal 120 and the first circuit board 200 affect electrical properties or cause an open circuit due to solder climbing.

Referring to FIG. 5, the volume of the electrical connector must also be relatively reduced in size due to the thinning or shrinking requirements of the market electronic product. In this embodiment, preferably, the first plate body 111 further has a recess. The recess 111c is recessed in the first outer surface 111b. The recess 111c has an opening 111d and a bottom wall 111e. The terminal 120 is coupled to the insulating housing 110. The opening 111d of the recess 111c is located. Between the bottom wall 111e of the recess 111c and the pin 123, and the pins 123 are located outside the recess 111c, and a second lateral gap D2 between the pin 123 and the sidewall 111e. The second lateral gap D2 is greater than the first lateral gap D1 to prevent solder from climbing and affecting electrical properties or causing an open circuit.

Referring to FIGS. 4 and 5, in the embodiment, the fixing portion 121 of each of the terminals 120 has a body 121a and a blocking flange 121b. The blocking flange 121b protrudes from the body 121a. The blocking flange 121b is blocked from the second plate 112. The blocking flange 121b prevents the body 121a from being inserted into the through hole 113a of the rear plate 113, and the terminals 120 are inserted. When the housing 110 is insulated, the skew is not complete.

Referring to FIGS. 3, 4 and 5, the contact portion 122 has a first contact arm 122a and a second contact arm 122b. The first contact arm 122a and the second contact arm 122b have a socket space S1. The first contact arm 122a is disposed on the first plate body 111, and the second contact arm 122b is disposed on the second plate body 112. Referring to FIG. 6, in the embodiment, the slot 112c has a guide. The guiding groove 112d is connected between the through hole 113a and the limiting groove 112e. The through hole 113a is connected to the guiding groove 112d. The guiding groove 112d is connected to the limiting groove 112e. The guiding slot 112d has a first width D3, the limiting slot 112e has a second width D4, the first width D3 is greater than the second width D4, and the second contact arm 122b has a free end 122c. The free end 122c is confined in the limiting slot 112e to prevent the free end 122c from being deflected to contact the adjacent terminal 120 or to be electrically connected to the second circuit board 300 due to the first width D3. The second end D4 is larger than the second width D4, so that the free end 122c can pass through the guiding slot 112d to be restricted in the limiting slot 112e. In this embodiment, the slot 112c further has a slanting slot 112f. The slanting slot 112f is connected to the guiding slot 112d and the limiting slot 112e, and the slanting slot 112f is located at the guiding slot 112d and the limiting slot 112d. Between the slots 112e, the width D5 of the inclined slot 112f is gradually reduced by the guiding slot 112d toward the limiting slot 112e. When the free end 122c passes through the guiding slot 112d, the free end 122c can be borrowed. The limit groove 112e is accurately inserted by the width of the oblique guide groove 112f.

Referring to Figures 3 and 7, the electrical connector 100 further includes at least one fixed terminal 130 having an integrally formed insertion portion 131, a bent portion 132 and a joint portion 133, the bent portion The insertion portion 131 is disposed between the insertion portion 131 and the joint portion 133. The insertion portion 131 and the joint portion 133 have an angle X therebetween. The bent portion 132 is located at the end of the angle X. Please refer to FIG. In this embodiment, the first plate body 111 further has at least one positioning groove 111f. The positioning groove 111f is recessed on the first outer surface 111b. The positioning groove 111f has an abutting wall 111g, and the abutting wall Between the 111g and the first outer surface 111b, there is a chamfered portion 111h. The chamfered portion 111h and the bent portion 132 have a space S2, and the insertion portion 131 of the fixed terminal 130 is embedded therein. The positioning portion 133 is exposed on the first outer surface 111b to be coupled to a bonding pad 220 of the first circuit board 200. The seating space S2 can avoid the abutting wall 111d or the first outer surface. The 111b interferes with the bent portion 132, causing the joint portion 133 to be obliquely joined to the joint pad 220.

The scope of protection of this creation is subject to the definition of the scope of the patent application, and any changes and modifications made by those skilled in the art without departing from the spirit and scope of this creation are within the scope of protection of this creation. .

100‧‧‧Electrical connector
110‧‧‧Insulated housing
111‧‧‧ first board
111a‧‧‧First inner surface
111b‧‧‧First outer surface
111c‧‧‧ Groove
111d‧‧‧ openings
111e‧‧‧ bottom wall
111f‧‧‧ positioning slot
111g‧‧‧ against the wall
112‧‧‧Second plate
112a‧‧‧Second inner surface
112b‧‧‧Second outer surface
112c‧‧‧ slots
112d‧‧‧ guiding slot
112e‧‧‧ Limit slot
112f‧‧‧ oblique guide
113‧‧‧ rear plate
113a‧‧‧Perforation
114‧‧‧plug slot
114a‧‧‧Interface
120‧‧‧terminal
121‧‧‧Fixed Department
121a‧‧‧ Ontology
121b‧‧‧stop flange
122‧‧‧Contacts
122a‧‧‧First contact arm
122b‧‧‧second contact arm
122c‧‧‧Free end
123‧‧‧ pins
130‧‧‧Fixed terminals
131‧‧‧Inset
132‧‧‧Bend
133‧‧‧ joints
200‧‧‧First board
210‧‧‧ Guide pad
220‧‧‧ joint pad
300‧‧‧second board
D1‧‧‧ first lateral clearance
D2‧‧‧Second lateral clearance
D3‧‧‧ first width
D4‧‧‧ second width
S1‧‧‧ docking space
S2‧‧‧Licence space
X‧‧‧ angle

Fig. 1 is a perspective view of the "electrical connector" of the present invention combined with a circuit board. Figure 2: This creation "electrical connector" is combined with a three-dimensional view of a circuit board. Figure 3: An exploded view of the "electrical connector" and a circuit board of the creation. Fig. 4 is a perspective cross-sectional view showing the "electrical connector" of the present invention combined with a circuit board. Figure 5: A cross-sectional view of the "electrical connector" of the present invention combined with a circuit board. Figure 6: This creation "electrical connector" is combined with a front view of a circuit board. Figure 7: A cross-sectional view of the "electrical connector" of the present creation.

100‧‧‧Electrical connector

110‧‧‧Insulated housing

111‧‧‧ first board

111b‧‧‧First outer surface

111c‧‧‧ Groove

111e‧‧‧ bottom wall

112‧‧‧Second plate

113a‧‧‧Perforation

114‧‧‧plug slot

114a‧‧‧Interface

120‧‧‧terminal

121‧‧‧Fixed Department

122‧‧‧Contacts

122a‧‧‧First contact arm

122b‧‧‧second contact arm

122c‧‧‧Free end

123‧‧‧ pins

200‧‧‧First board

210‧‧‧ Guide pad

Claims (8)

An electrical connector includes: an insulative housing having a first plate body, a second plate body, a rear plate body, and a socket groove between the first plate body and the second plate body, The two ends of the rear plate body are connected to the first plate body and the first plate body, and the rear plate body has a plurality of through holes, the through holes communicate with the insertion groove, the insertion groove has a plug interface; Each of the terminals is inserted through the perforations and coupled to the insulative housing, and each of the terminals has a fixed portion, a contact portion and a pin. The fixing portion is located at the contact portion and the pin. The fixing portion is disposed in the through hole of the rear plate body, and the contact portion is received in the insertion slot, each of the pins is exposed outside the insulating housing, and each of the pins and the first plate body There is a first lateral gap between them. The electrical connector of claim 1, wherein the first plate has a first inner surface, a first outer surface, and a groove, the first inner surface facing the second plate, The groove is recessed on the first outer surface, the groove has an opening and a bottom wall, the opening is located between the bottom wall and the pin, and the pins are located outside the groove, each of the connections There is a second lateral gap between the foot and the sidewall, the second lateral gap being greater than the first lateral gap. The electrical connector of claim 1, wherein the fixing portion has a body and a blocking flange, the blocking flange protrudes from the body, and the blocking flange blocks the first Two plates in vitro. The electrical connector of claim 1, wherein the contact portion has a first contact arm and a second contact arm, and the first contact arm and the second contact arm have a socket space. The first contact arm is disposed on the first plate body, and the second contact arm is disposed on the second plate body. The electrical connector of claim 1, wherein the contact portion has a second contact arm, the second contact arm is disposed on the second plate body, and the second plate body has a second inner surface, a second outer surface and a plurality of slots recessed in the second inner surface, each of the slots communicating with each of the through holes of the rear plate body, the slot having a guiding slot and a limiting slot, the guiding The guiding slot is located between the through hole and the limiting slot, the through hole is connected to the guiding slot, the guiding slot is connected to the limiting slot, the guiding slot has a first width, and the limiting slot has a second Width, the first width being greater than the second width. The electrical connector of claim 5, wherein the second contact arm has a free end, the free end being confined in the limiting slot. The electrical connector of claim 5, wherein the slot has a slanting guide groove, the slanting guide slot is connected to the guiding slot and the limiting slot, and the slanting guiding slot is located in the guiding slot Between the limiting slots, the width of the inclined guiding slot is gradually reduced by the guiding slot toward the limiting slot. The electrical connector of claim 1, further comprising at least one fixed terminal, the fixed terminal having an integrally formed insertion portion, a bent portion and a joint portion, the bent portion being located at the insertion Between the insert portion and the joint portion, the insert portion has an angle with the joint portion, the bend portion is at the end of the angle, the first plate body has a first inner surface and a first outer surface And at least one positioning groove, the first inner surface faces the second plate body, the positioning groove is recessed on the first outer surface, the positioning groove has an abutting wall, and the abutting wall and the first outer surface Between the chamfered portion and the bent portion, the insertion portion is embedded in the positioning groove, and the engaging portion is exposed on the first outer surface, The seating space prevents the abutment wall or the first outer surface from contacting the bend.