CN219760041U - Insulating housing and electric connector provided with same - Google Patents

Abstract

The utility model discloses an insulating shell and an electric connector provided with the insulating shell, wherein the insulating shell comprises: a main body portion; the locking arm is provided with a front end part, a connecting arm and a rear end part, the connecting arm is connected between the front end part and the rear end part, the front end part is connected with the main body part, a gap is reserved between the connecting arm and the main body part so that the locking arm can elastically deform towards the main body part, one side of the connecting arm, which is far away from the main body part, is convexly provided with a locking part, the main body part is provided with at least one limiting part corresponding to the rear end part, the limiting part is provided with a limiting hole and a surrounding wall positioned at the hole edge of the limiting hole, the rear end part extends into the limiting hole, at least one side of the rear end part is connected with the surrounding wall into a whole through the connecting part, and the width of the connecting part is smaller than that of the rear end part; therefore, the condition that the locking arm deflects or is touched by mistake in the vibration environment of the insulating shell is avoided.

Description

Insulating housing and electric connector provided with same

[ field of technology ]

The present utility model relates to an insulating housing and an electrical connector provided with the insulating housing, and more particularly, to an insulating housing capable of stably fastening a mating connector and an electrical connector provided with the insulating housing.

[ background Art ]

The prior electric connector is used for butting with a butting connector and is provided with an insulating shell, wherein the insulating shell comprises a main body part and two locking arms connected with the left side and the right side of the main body part, the two locking arms are cantilever beams, the front ends of the two locking arms are connected with the main body part, and the rear ends of the two locking arms are free tail ends; each latch arm's linking arm and its free end all with have the clearance between the main part, make latch arm can towards main part elastic deformation, and each latch arm is last still to be equipped with a latch portion, insulating housing can pass through latch portion and a pair of butt joint casing looks hasp, and works as insulating housing with after the butt joint casing looks hasp, the free end of latch arm is located outside the butt joint casing, when with insulating housing with when the butt joint casing unblocks, only need press the free end of latch arm just can make both unblocks.

However, since both the latch arms are cantilever beams, before the insulating housing is latched with the docking housing, the latch arms may deflect due to shaking caused by collision in a vibration environment or external force, so that the latch arms may deviate, and the latch arms may not be latched with the docking housing through the latch portions, or the latch portions of the latch arms may not be latched with the docking housing stably, thereby affecting the docking effect of the electrical connector and the docking connector; and because the free end of the latch arm is located outside the docking housing after the insulating housing is latched with the docking housing, the insulating housing and the docking housing are easily tripped due to the error touching of the free end of the latch arm, which causes the abrupt interruption of the electrical connection between the electrical connector and the docking connection.

Therefore, there is a need to design an insulating housing and an electrical connector provided with the insulating housing to solve the above-mentioned technical problems.

[ utility model ]

The utility model aims to provide an insulating shell and an electric connector with the insulating shell, wherein the front end part of a latch arm is connected with a main body part, a limiting hole and a surrounding wall positioned at the hole edge of the limiting hole are arranged on a limiting part of the main body part, the rear end part of the latch arm extends into the limiting hole, and the rear end part of the latch arm is connected with the surrounding wall of the main body part through a connecting part into a whole, so that the latch arm is prevented from deflecting or being mistakenly touched.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

an insulating housing, comprising: a main body portion; at least one latch arm is located one side of main part, latch arm has a front end, a linking arm and a rear end, the linking arm connect in front end with between the rear end, front end with main part is connected, the linking arm with have the clearance between the main part, for the latch arm towards main part elastic deformation, the linking arm keeps away from one side of main part is protruding to be equipped with a latch portion, the main part corresponds the rear end is equipped with at least one spacing portion, spacing portion has a spacing hole and is located a surrounding wall of the hole edge of spacing hole, the rear end stretches into in the spacing hole, just at least one side of rear end through a linking portion with surrounding wall is connected as an organic wholely, the width of linking portion is less than the width of rear end.

Further, the number of the connecting portions is two, the two connecting portions are respectively connected to opposite sides of the rear end portion in the width direction of the rear end portion, and the thickness of the rear end portion is gradually reduced in the front-to-rear direction.

Further, the enclosing wall has an inner wall and an outer wall, the outer wall is far away from than the inner wall the central line of main part in the fore-and-aft direction, the rear end portion with the connecting portion is connected and will spacing hole separates into a first space and a second space, first space form in the outer wall with the rear end portion and between the connecting portion, the second space form in the inner wall with rear end portion and between the connecting portion, just the second space is greater than first space, when pressing the connecting arm, the rear end portion drives the connecting portion orientation inner wall elastic deformation.

Further, in the thickness direction of the rear end portion, the connecting portion has a vertical face facing the inner wall and an arcuate face facing the outer wall, the vertical face being coplanar with a side surface of the rear end portion facing the inner wall, the arcuate face being concavely formed on a side away from the outer wall so that the thickness of the connecting portion is smaller than that of the rear end portion.

Further, in the width direction of the rear end portion, the enclosure wall has a curved wall connecting the inner wall and the outer wall, the connecting portion is connected between the curved wall and the rear end portion, and a thickness of a junction of the connecting portion and the curved wall is greater than a thickness of an intermediate position of the connecting portion.

Further, two positioning arms are arranged on the upper side and the lower side of the main body part, a hook part is arranged on the front side of each positioning arm, two positioning grooves are respectively arranged on the upper surface and the lower surface of the main body part and correspond to the two hook parts, a buckling part is arranged in each positioning groove in an inward protruding mode, each hook part is located in the corresponding positioning groove and buckled with the buckling part, the locking arms are located on one side of the main body part in the left-right direction, the connecting arms are provided with an extending section, a locking section and a pressing section, the locking section is connected between the extending section and the pressing section, the front end of the extending section is connected with the front end, the pressing section is connected with the rear end, and the projection of the locking section is located between the projections of the two hook parts in the left-right direction.

Further, along the upper and lower direction, the width of hasp section is less than the extension section with press the width of section, just extension section upper surface and lower surface all are equipped with a first inclined plane, the rear end of first inclined plane with the front end of hasp section is connected, along in the direction from front to back, two distance between the first inclined plane reduces gradually, the upper surface and the lower surface of pressing the section all are equipped with a second inclined plane, the front end of second inclined plane with the rear end of hasp section is connected, and along in the direction from front to back, two distance between the second inclined plane increases gradually.

Further, along in the direction from front to back, the linking arm with clearance between the main part increases gradually, press the section connect in the hasp section with between the rear end portion, just the width of hasp section is less than the width of rear end portion, press one side that the section kept away from the main part is in the interval protruding two pressing blocks that are equipped with in the fore-and-aft direction, every pressing block thickness in the fore-and-aft direction is less than or equal to the thickness of hasp section.

Further, the number of the latch arms is two, the two latch arms are respectively located at the left side and the right side of the main body portion and elastically deform in the left-right direction, the upper surface and the lower surface of the front end portion of one latch arm are located between the upper surface and the lower surface of the main body portion along the up-down direction, and the upper surface and the lower surface of the front end portion of the other latch arm are respectively flush with the upper surface and the lower surface of the main body portion.

The electric connector comprises an insulating shell and a plurality of conductive terminals accommodated in the insulating shell, wherein the front end of the insulating shell is a butt joint end, the front surface of the front end is flush with the front surface of the main body, the front surface of the front end is provided with a glue inlet in a backward concave manner, and the glue inlet is positioned at the butt joint end of the insulating shell.

Compared with the prior art, the insulating shell and the electric connector provided with the insulating shell have the following beneficial effects:

the front end part of the latch arm is connected with the main body part, the rear end part of the latch arm is connected with the surrounding baffle wall of the main body part into a whole through the connecting part, so that even before the insulating shell is latched with the docking shell, the latch arm is in a vibration environment or is collided by external force, as the connecting part is additionally arranged, the connecting part is connected with one side of the rear end part, the width of the connecting part is smaller than that of the rear end part, the elasticity of the connecting part is larger than that of the rear end part, and even if the latch arm is deflected in the moment of receiving external force, the connecting part can enable the rear end part to reset rapidly by virtue of the elasticity of the connecting part, the latch arm can be locked or unlocked with the docking shell normally, and meanwhile, the problem that the latch arm is broken due to too concentrated stress is effectively avoided; and because the spacing portion has spacing hole and be located the hole edge of spacing hole enclose the wall, the rear end portion stretches into spacing downthehole, like this the latch arm the rear end portion all by enclose the wall and block all around, so the operator can't direct contact in general meet the latch arm the rear end portion, but by enclose the wall and block, so avoided the rear end portion is touched by mistake, and then avoid insulating casing with the unexpected condition emergence of being tripped of butt joint casing.

[ description of the drawings ]

FIG. 1 is a perspective view of an insulative housing and an electrical connector having the insulative housing according to the present utility model;

FIG. 2 is a partial rear view of FIG. 1;

FIG. 3 is a cross-sectional view of FIG. 2 taken along line A-A;

FIG. 4 is a partial perspective view of the stop portion of FIG. 1 from the left side and taken in section;

FIG. 5 is a schematic plan view of the stop portion of FIG. 1 from the left side and taken in section;

FIG. 6 is a partial perspective view of the stop portion of FIG. 1 from the right side and taken in section;

fig. 7 is a schematic plan view of fig. 1 viewed from the right side and cut away from the limit portion on the right side.

Reference numerals of the specific embodiments illustrate:

[ detailed description ] of the utility model

For a better understanding of the present utility model, reference will now be made in detail to the present utility model, examples of which are illustrated in the accompanying drawings.

As shown in fig. 1 to 7, the insulating housing 1000 and the electrical connector 100 provided with the insulating housing 1000 of the present utility model define a front-rear direction, and a left-right direction and an up-down direction perpendicular to the front-rear direction. For the convenience of understanding the drawings, the forward direction in the front-rear direction is the positive direction of the X axis, the rightward direction in the left-right direction is the positive direction of the Y axis, and the upward direction in the up-down direction is the positive direction of the Z axis.

As shown in fig. 1 to 7, the insulating housing 1000 and the electrical connector 100 provided with the insulating housing 1000 according to an embodiment of the present utility model, the insulating housing 1000 includes a main body portion 1 vertically arranged in the left-right direction and two positioning arms 2 located on the upper and lower sides of the main body portion 1, and two latch arms 3 located on the left and right sides of the main body portion 1 (of course, in other embodiments, two latch arms 3 may be located on the upper and lower sides of the main body portion 1, or the number of latch arms 3 may be one, and one latch arm 3 may be located on one side of the main body portion 1, and the latch arms 3 may be located on one side of the main body portion 1 in the up-down direction, or on one side of the main body portion 1 in the left-right direction), the insulating housing 1000 is applied to the electrical connector 100, and the electrical connector 2000 is further provided with a plurality of conductive terminals 2000 accommodated in the insulating housing 2000.

As shown in fig. 1, 2, 4 and 6, the main body 1 has a plurality of receiving holes 11, the plurality of receiving holes 11 are arranged in two rows, and the two rows of receiving holes 11 are mirror images in the up-down direction. The plurality of receiving holes 11 of each row are arranged in the left-right direction, and each receiving hole 11 penetrates the main body portion 1 in the front-rear direction. The main body 1 is provided with two positioning grooves 12, specifically, one of the positioning grooves 12 is formed by recessing downwards from the upper surface of the main body 1, and the positioning groove 12 is communicated with a plurality of accommodating holes 11 in an upper row. The other positioning groove 12 is concavely formed upward from the lower surface of the main body 1, and the other positioning groove 12 is communicated with the plurality of accommodating holes 11 in the lower row. Each positioning slot 12 is further provided with a fastening portion 121, and the fastening portion 121 is formed by protruding forward from the rear wall surface of the positioning slot 12.

As shown in fig. 2 and 3, the left and right sides of the main body 1 are respectively extended with a limiting portion 13, and each limiting portion 13 has a limiting hole 131 and a surrounding wall 132 located at the hole edge of the limiting hole 131. The surrounding wall 132 has an inner wall 1321, an outer wall 1322 and two curved walls 1323, and the outer wall 1322 is far from the center line of the main body 1 in the front-rear direction compared with the inner wall 1321. Two curved walls 1323 are disposed on both sides of the inner wall 1321 and the outer wall 1322, specifically, two curved walls 1323 are disposed on both sides of the inner wall 1321 and the outer wall 1322 in the up-down direction, and one end of each curved wall 1323 is connected to the inner wall 1321, and the other end is connected to the outer wall 1322.

As shown in fig. 4, 5, 6 and 7, the front end of each positioning arm 2 is a free end, and a hook 21 extending from front to back is further provided on the front side of each positioning arm 2, and two hook 21 correspond to two positioning slots 12 respectively. The rear end of each positioning arm 2 is connected to the main body 1, each positioning arm 2 rotates about the rear end thereof in the vertical direction, so that each hook 21 extends into or exits from the corresponding positioning slot 12, when the hook 21 extends into the positioning slot 12, the rear side of each hook 21 is buckled with the corresponding buckle 121, and thus the hook 21 is prevented from exiting from the corresponding positioning slot 12 in a vibration environment, and the front side of the hook 21 can also stop the conductive terminal 2000 backward, so as to prevent the conductive terminal 2000 from exiting from the insulating housing 1000 backward.

As shown in fig. 3, 4 and 6, two latch arms 3 are provided on both sides of the main body 1 in the left-right direction, each latch arm 3 having a front end 31, a connecting arm 32 and a rear end 33, the connecting arm 32 being connected between the front end 31 and the rear end 33.

As shown in fig. 1, 3, 4 and 6, the front end 31 of each latch arm 3 is connected to the main body 1, and the front surface of the front end 31 is flush with the front surface of the main body 1, and a glue inlet 311 is further recessed in the front surface of each front end 31, and the glue inlet 311 is located at the mating end of the insulating housing 1000, in this embodiment, the front end of the insulating housing 1000 is a mating end, and the mating ends are mated with each other by a mating connector (not shown in the drawings, and the mating ends are mated with each other in the drawings), so that burrs generated at the glue inlet 311 during forming the latch arm 3 are prevented from protruding forward from the front surface of the insulating housing 1000, thereby affecting the mating of the insulating housing 1000 and the mating connector.

As shown in fig. 3, 4 and 6, a gap is formed between the connecting arm 32 of each latch arm 3 and the main body 1, so that the latch arm 3 is elastically deformed toward the main body 1, and the gap between the connecting arm 32 and the main body 1 is gradually increased in the front-to-rear direction, thus making the latch arm 3 have a larger elasticity. Each of the connecting arms 32 further has an extension section 321, a locking section 322 and a pressing section 323, wherein the locking section 322 is connected between the extension section 321 and the pressing section 323, and the width of the locking section 322 is smaller than the width of the extension section 321 and the width of the pressing section 323 in the up-down direction.

As shown in fig. 1, 3 and 4 to 7, the front end of the extension 321 of each latch arm 3 is connected to the front end 31, and the rear end thereof is connected to the latch section 322. Each of the extending sections 321 has a first inclined surface 3211 on its upper and lower surfaces, and a rear end of each of the first inclined surfaces 3211 is connected to a front end of the locking section 322, and a distance between the two first inclined surfaces 3211 is gradually reduced in a front-to-rear direction, so that a connection strength between the extending section 321 and the corresponding locking section 322 can be enhanced.

As shown in fig. 3, 4, 5, 6 and 7, in the width direction (i.e., up-down direction) of the latch arm 3, the width of the latch section 322 is smaller than not only the width of the extension section 321 and the width of the pressing section 323, but also the width of the latch section 322 is smaller than the width of the front end portion 31 and the width of the rear end portion 33, thus reducing stress concentration in the latch section 322. Along the left-right direction, the projection of the locking section 322 is located between the projections of the two hook portions 21, so that not only is the buckling condition of the hook portions 21 and the buckling portion 121 convenient to observe, but also the situation that the locking section 322 collides with the hook portions 21 of the positioning arm 2 due to errors or vibration can be avoided, and further the damage of the insulating housing 1000 is caused. The side of the locking section 322 away from the main body 1 is further provided with a locking portion 3221 in a protruding manner, and the locking portion 3221 is configured to be locked with a locking hole of the mating connector.

As shown in fig. 3, 4, 5, 6 and 7, the pressing section 323 is connected between the latch section 322 and the rear end 33, i.e., a front end of the pressing section 323 is connected with the latch section 322, and a rear end of the pressing section 323 is connected with the rear end 33. The pressing section 323 has a second inclined surface 3231 on its upper and lower surfaces, and each second inclined surface 3231 has a front end connected to a rear end of the latch section 322, and a distance between the two second inclined surfaces 3231 is gradually increased in a front-to-rear direction, so that a connection strength between the pressing section 323 and the corresponding latch section 322 can be enhanced. The pressing section 323 is further provided with two pressing blocks 3232 protruding from one side of the main body 1, and the two pressing blocks 3232 are disposed at intervals in the front-rear direction. The thickness of each pressing block 3232 in the front-rear direction is smaller than the thickness of the corresponding locking section 322 (of course, in other embodiments, the thickness of each pressing block 3232 in the front-rear direction is equal to the thickness of the corresponding locking section 322), that is, the thickness of each pressing block 3232 in the front-rear direction is smaller than the thickness of the corresponding locking section 322 in the left-right direction; this prevents the pressing block 3232 from becoming too thick, and shrinkage occurs during cooling of the molding. And both the pressing blocks 3232 are protruded outwards from the limiting part 13, that is, the outer sides of the two pressing blocks 3232 are farther away from the main body part 1 than the outer sides of the corresponding limiting parts 13 along the left-right direction, so that an operator can press conveniently.

As shown in fig. 2 to 7, the rear end portion 33 of each latch arm 3 extends into the corresponding limiting hole 131, and at least one side of the rear end portion 33 is integrally connected to the surrounding wall 132 through a connecting portion 34, in this embodiment, each rear end portion 33 is correspondingly connected to two connecting portions 34, and along the width direction (i.e., the up-down direction) of the rear end portion 33, two connecting portions 34 are respectively connected to opposite sides of the rear end portion 33 (i.e., two connecting portions 34 are respectively connected to the up-down sides of the rear end portion 33). The width of the connecting portion 34 is smaller than the width of the rear end portion 33, wherein the width of the connecting portion 34 is the width of the connecting portion 34 in the front-rear direction, and the width of the rear end portion 33 is the width of the rear end portion 33 in the up-down direction. And the thickness of each of the rear end portions 33 is gradually reduced in the front-to-rear direction, so that the latch arms 3 can have a large elasticity, reducing the pressing force required to press the latch arms 3.

As shown in fig. 2 to 7, the rear end portion 33 and the connecting portion 34 of each latch arm 3 are connected and extend into the corresponding limiting hole 131, and the connected rear end portion 33 and connecting portion 34 divide the corresponding limiting hole 131 into a first gap G1 and a second gap G2, the first gap G1 is formed between the outer wall 1322 and the rear end portion 33 and the connecting portion 34, the second gap G2 is formed between the inner wall 1321 and the rear end portion 33 and the connecting portion 34, and the second gap G2 is larger than the first gap G1, and when the connecting arm 32 of the latch arm 3 is pressed, the rear end portion 33 drives the connecting portion 34 to elastically deform toward the inner wall 1321. Specifically, when the connecting arm 32 of the latch arm 3 is pressed, the pressing section 323 receives a pressing force toward the inner wall 1321, so that the corresponding rear end portion 33 is displaced or elastically deformed toward the inner wall 1321, and the connecting portion 34 connected to the rear end portion 33 is also elastically deformed toward the inner wall 1321.

As shown in fig. 2 to 7, the connecting portion 34 has a vertical surface 341 and an arcuate surface 342 which are disposed opposite to each other in the thickness direction (i.e., left-right direction) of the rear end portion 33, the vertical surface 341 being disposed facing the inner wall 1321 of the surrounding wall 132 corresponding thereto, and the vertical surface 341 being coplanar with a side surface of the rear end portion 33 facing the main body portion 1, in other words, the vertical surface 341 being disposed facing the inner wall 1321 corresponding thereto, the vertical surface 341 being coplanar with a side surface of the rear end portion 33 adjacent to the main body portion 1. The arcuate surface 342 is disposed opposite to the outer wall 1322 of the surrounding wall 132 corresponding thereto, that is, the arcuate surface 342 is disposed opposite to the outer wall 1322 corresponding thereto, and the arcuate surface 342 is concavely disposed toward a side away from the outer wall 1322, so that the thickness of the connecting portion 34 is smaller than the thickness of the rear end portion 33.

As shown in fig. 2 to 7, one end of each of the connecting portions 34 is connected to the curved wall 1323 of the corresponding surrounding wall 132, and the other end is connected to the corresponding rear end portion 33, and the thickness of the connecting portion 34 at the junction with the curved wall 1323 is greater than the thickness of the connecting portion 34 at the middle position in the thickness direction (i.e., the left-right direction) of the connecting portion 34, so that the connecting portion 34 has a greater thickness at the junction of the connecting portion 34 with the curved wall 1323, thereby increasing the connection strength of the connecting portion 34 with the curved wall 1323, and avoiding the occurrence of fracture at the junction of the connecting portion 34 with the curved wall 1323 when the latch arm 3 is pressed.

As shown in fig. 1, 3 and 4 to 7, two latch arms 3 are respectively located at left and right sides of the main body 1 in the left and right directions and elastically deformed in the left and right directions, and an upper surface and a lower surface of the front end portion 31 of one latch arm 3 are located between the upper surface and the lower surface of the main body 1 in the up and down directions, and an upper surface and a lower surface of the front end portion 31 of the other latch arm 3 are respectively flush with the upper surface and the lower surface of the main body 1, so that erroneous insertion of the insulating housing 1000 can be prevented. In the present embodiment, the one of the latch arms 3 is the latch arm 3 located on the left side of the main body 1, and the width of the front end 31 of the latch arm 3 in the up-down direction is smaller than the height of the main body 1 in the up-down direction. The other latch arm 3 is the latch arm 3 located on the right side of the main body 1, the width of the front end 31 of the latch arm 3 in the up-down direction is equal to the height of the main body 1 in the up-down direction, and the width of the front end 31 of the latch arm 3 in the up-down direction is smaller than the width of the front end 31 of the latch arm 3 located on the left side of the main body 1; and the center lines of the two latch arms 3 on the left and right sides in the front-rear direction coincide with the center line of the main body 1 in the front-rear direction.

In summary, the insulating housing 1000 and the electrical connector 100 provided with the insulating housing 1000 of the present utility model have the following advantages:

(1) The front end 31 of the latch arm 3 is connected with the main body 1, and the rear end 33 of the latch arm 3 is connected with the surrounding wall 132 of the main body 1 through the connecting part 34 into a whole, so that even when the insulating housing 1000 is in a vibration environment or is collided by external force before being latched with the butt housing, the latch arm 3 can be locked or unlocked normally with the butt housing, and the connecting part 34 is additionally arranged, one side of the connecting part 34 connected with the rear end 33, the width of the connecting part 34 is smaller than that of the rear end 33, so that the elasticity of the connecting part 34 is larger than that of the rear end 33, and even if the latch arm 3 deflects at the moment of receiving external force, the connecting part 34 can enable the rear end 33 to reset quickly by virtue of the elasticity of the connecting part 34, thereby ensuring that the latch arm 3 can be locked or unlocked normally with the butt housing, and simultaneously effectively avoiding the problem that the stress of the latch arm 3 is concentrated and breaks; moreover, since the limiting portion 13 has the limiting hole 131 and the surrounding wall 132 located at the hole edge of the limiting hole 131, the rear end portion 33 extends into the limiting hole 131, so that the periphery of the rear end portion 33 of the latch arm 3 is blocked by the surrounding wall 132, an operator cannot directly contact the rear end portion 33 of the latch arm 3 under normal conditions, but is blocked by the surrounding wall 132, so that the situation that the rear end portion 33 is mistakenly touched and the situation that the insulating housing 1000 and the abutting housing are accidentally tripped is avoided.

(2) Two connection parts 34 are respectively connected to opposite sides of the rear end part 33 along the width direction of the rear end part 33 (the width of the rear end part 33 is the up-down direction in the present embodiment), such that the two connection parts 34 can enable the rear end part 33 to have proper displacement in the left-right direction, and can limit the rear end part 33 in the up-down direction, so as to avoid the rear end part 33 from being deviated in the up-down direction in the corresponding limiting hole 131 in a vibration environment or under the condition of external force, and the two connection parts 34 can enable the rear end part 33 to be connected with the main body part 1 more stably, and the thickness of the rear end part 33 is gradually reduced along the front-to-back direction; so that the latch arm 3 has better elasticity, and the excessive pressing force required for pressing the latch arm 3 is avoided.

(3) The outer wall 1322 is farther from the center line of the main body 1 in the front-rear direction than the inner wall 1321, the rear end portion 33 and the connecting portion 34 are connected and divide the limiting hole 131 into the first gap G1 and the second gap G2, the first gap G1 is formed between the outer wall 1322 and the rear end portion 33 and the connecting portion 34, the second gap G2 is formed between the inner wall 1321 and the rear end portion 33 and the connecting portion 34, and the second gap G2 is larger than the first gap G1; in this way, the first gap G1 and the second gap G2 can provide a yielding space for the rear end portion 33 and the connecting portion 34 in the vibration environment, and when unlocking the insulating housing 1000 and the docking housing, the operator presses the latch arm 3 inwards, the connecting portion 34 is forced to elastically deform towards one side of the second gap G2, and the rear end portion 33 is forced to displace towards one side of the second gap G2, so that the second gap G2 is larger, and can provide enough avoidance space for the elastic deformation of the connecting portion 34 and the displacement of the rear end portion 33, so as to avoid the latch arm 3 from being impacted to the inner wall 1321 when being pressed inwards, which is not only unfavorable for unlocking the insulating housing 1000 and the docking housing, but also causes damage to the connecting portion 34 and the rear end portion 33.

(4) The connecting portion 34 has the vertical surface 341 facing the inner wall 1321 and the arcuate surface 342 facing the outer wall 1322, the vertical surface 341 is coplanar with a side surface of the rear end portion 33 facing the main body portion 1, the arcuate surface 342 is recessed toward a side away from the outer wall 1322, so that the thickness of the connecting portion 34 is smaller than that of the rear end portion 33, and when the latch arm 3 is pressed inward, the arcuate surface 342 can be stretched along a side away from the outer wall 1322, and a length of the connecting portion 34 that can be deformed inward is increased as compared with a structure in which the arcuate surface 342 is disposed to face the inner wall 1321, so that occurrence of breakage of the connecting portion 34 due to an increase in a distance of inward deflection of the rear end portion 33 when a pressing force is large is avoided.

(5) Along in the direction from front to back, the clearance between linking arm 32 with main part 1 increases gradually, has so increased the elasticity of hasp arm 3, makes things convenient for the operator to press hasp arm 3, moreover press section 323 keep away from two that main part 1 one side is protruding in the interval of fore-and-aft direction was equipped with press piece 3232, every press piece 3232 is less than or equal to in the thickness of hasp section 322 in the fore-and-aft direction, so avoid pressing piece 3232 department thickness too thick, and then avoid the shaping hasp arm 3 in-process press piece 3232 produces the shrink, makes the outward appearance of hasp arm 3 is influenced, and then influences the yields of electric connector 100.

(6) The upper and lower both sides of main part 1 are equipped with two positioning arm 2, every positioning arm 2's front side has collude the portion 21, every collude the portion 21 be located corresponding constant head tank 12 in and with buckle portion 121 looks lock, so, collude the front side of portion 21 can keep off conductive terminal 2000 back withdraw from insulating housing 1000, and along left and right directions, the projection of hasp section 322 is located two collude between the projection of portion 21, so, be convenient for from left and right directions the observation collude portion 21 with buckle portion 121's lock condition avoids because when electric connector 100 is in the vibrations environment, collude portion 21 with buckle portion 121 is because vibrations are tripped, makes collude portion 21 unable backward stop conductive terminal 2000's the condition takes place.

(7) In the up-down direction, the width of the locking section 322 is smaller than the widths of the extending section 321 and the pressing section 323, so that not only the stress concentration of the locking section 322 can be reduced, but also the width of the locking portion 3221 of the locking section 322 is smaller, so that the buckling hole required to be concavely arranged on the side wall of the butt connector which is in butt joint with the locking section 322 is smaller, and further the side wall of the butt connector has better strength; and the upper and lower surfaces of the extension section 321 are provided with the first inclined surfaces 3211, the rear end of the first inclined surface 3211 is connected with the front end of the locking section 322, the distance between the two first inclined surfaces 3211 is gradually reduced in the front-to-rear direction, the upper and lower surfaces of the pressing section 323 are provided with the second inclined surfaces 3231, the front end of the second inclined surface 3231 is connected with the rear end of the locking section 322, and the distance between the two second inclined surfaces 3231 is gradually increased in the front-to-rear direction; in this way, the connection strength between the extension section 321 and the locking section 322, and the connection strength between the pressing section 323 and the locking section 322 can be increased.

The above detailed description is merely illustrative of the preferred embodiments of the utility model and is not intended to limit the scope of the utility model, so that all equivalent technical changes that can be made by the present specification and illustrations are included in the scope of the utility model.

Claims (10)

1. An insulating housing, comprising:

a main body portion;

at least one latch arm is located one side of main part, latch arm has a front end, a linking arm and a rear end, the linking arm connect in front end with between the rear end, front end with main part is connected, the linking arm with have the clearance between the main part, for the latch arm towards main part elastic deformation, the linking arm keeps away from one side of main part is protruding to be equipped with a latch portion, the main part corresponds the rear end is equipped with at least one spacing portion, spacing portion has a spacing hole and is located a surrounding wall of the hole edge of spacing hole, the rear end stretches into in the spacing hole, just at least one side of rear end through a linking portion with surrounding wall is connected as an organic wholely, the width of linking portion is less than the width of rear end.

2. The insulated housing of claim 1, wherein: the number of the connecting parts is two, the two connecting parts are respectively connected to two opposite sides of the rear end part along the width direction of the rear end part, and the thickness of the rear end part is gradually reduced along the front-to-rear direction.

3. The insulated housing of claim 1, wherein: the enclosing wall is provided with an inner wall and an outer wall, the outer wall is far away from the central line of the main body part in the front-rear direction compared with the inner wall, the rear end part is connected with the connecting part and divides the limiting hole into a first gap and a second gap, the first gap is formed between the outer wall and the rear end part as well as between the connecting part, the second gap is formed between the inner wall and the rear end part as well as between the connecting part, and the second gap is larger than the first gap, when the connecting arm is pressed, the rear end part drives the connecting part to elastically deform towards the inner wall.

4. The insulated housing of claim 3, wherein: the connecting part is provided with a vertical surface facing the inner wall and an arc-shaped surface facing the outer wall along the thickness direction of the rear end part, the vertical surface is coplanar with the side surface of the rear end part facing the inner wall, and the arc-shaped surface is concavely arranged on one side far away from the outer wall, so that the thickness of the connecting part is smaller than that of the rear end part.

5. The insulated housing of claim 3, wherein: along the width direction of the rear end part, the enclosing wall is provided with a curved wall for connecting the inner wall and the outer wall, the connecting part is connected between the curved wall and the rear end part, and the thickness of the connecting part at the connecting part and the curved wall is larger than that of the middle position of the connecting part.

6. The insulated housing of claim 1, wherein: the utility model discloses a lock catch device, including main part, connecting arm, lock catch section, back end, buckle section, connecting arm, buckle section, push away the section, the front end of extension section with the front end is connected, push away the section with the back end is connected, along left and right directions, the projection of buckle section is located two the projection of colluding the portion.

7. The insulated housing of claim 6, wherein: along in the upper and lower direction, the width of hasp section is less than the extension section with press the width of section, just extension section upper surface and lower surface all are equipped with a first inclined plane, the rear end of first inclined plane with the front end of hasp section is connected, along in the direction from front to back, two distance between the first inclined plane reduces gradually, the upper surface and the lower surface of pressing the section all are equipped with a second inclined plane, the front end of second inclined plane with the rear end of hasp section is connected, and along in the direction from front to back, two distance between the second inclined plane increases gradually.

8. The insulated housing of claim 6, wherein: along in the direction from front to back, the linking arm with clearance between the main part increases gradually, press the section connect in the hasp section with between the rear end portion, just the width of hasp section is less than the width of rear end portion, press one side that the section kept away from the main part is in the interval protruding two pressing blocks that are equipped with in the fore-and-aft direction, every pressing block thickness in the fore-and-aft direction is less than or equal to the thickness of hasp section.

9. The insulated housing of claim 1, wherein: the number of the lock catch arms is two, the two lock catch arms are respectively positioned at the left side and the right side of the main body part and elastically deform in the left-right direction, and along the up-down direction, the upper surface and the lower surface of the front end part of one lock catch arm are positioned between the upper surface and the lower surface of the main body part, and the upper surface and the lower surface of the front end part of the other lock catch arm are respectively flush with the upper surface and the lower surface of the main body part.

10. An electrical connector comprising an insulating housing according to any one of claims 1 to 9 and a plurality of conductive terminals accommodated in the insulating housing, wherein the front end of the insulating housing is a butt end, the front surface of the front end is flush with the front surface of the main body, and the front surface of the front end is concavely provided with a glue inlet, and the glue inlet is positioned at the butt end of the insulating housing.