Electrical connector

Abstract

The present invention discloses an electrical connector, wherein the electrical connection assembly comprises an insulating body, a plurality of terminals accommodated in the insulating body and a terminal position ensuring member for locking the plurality of terminals, a recessed portion is provided on one side of the insulating body, a temporary locking portion and a final locking portion are provided in the recessed portion, the insulating body is provided with an insertion groove connected with the recessed portion for a tool to be inserted, and a limiting portion is provided on one side of the insertion groove, the buckle portion of the terminal position ensuring member can be selectively engaged with the temporary locking portion or the final locking portion, and the buckle portion is exposed in the insertion groove, when the tool enters the insertion groove and pries the buckle portion to unlock the terminal position ensuring member, the limiting portion is located on one side of the insertion groove, which can prevent the tool from deflecting without limit and excessively prying the buckle portion to damage the terminal position ensuring member, and can limit the tool from continuing to deflect after the terminal position ensuring member has been unlocked, causing the buckle portion to pass over the temporary locking portion and separate the entire terminal position ensuring member from the insulating body.

Description

[Technical field]

[0001] The present invention relates to an electric connector, in particular to an electric connector with a terminal position ensuring component. [Background technology]

[0002] In the prior art, the electrical connector includes an insulating body, which is provided with a plurality of terminal grooves extending in the front-to-back direction to accommodate a plurality of terminals, and a terminal position ensuring member is assembled on one side of the insulating body and blocks the terminal from withdrawing backward from the insulating body. When the terminal needs to be replaced, the terminal position ensuring member needs to be disassembled before the terminal can be taken out. There are two existing methods for disassembling the terminal position ensuring member: Method 1, the terminal position ensuring member and the insulating body are only provided with a one-time snap-in structure, and the terminal position ensuring member needs to be completely removed from the insulating body before the terminal can be withdrawn from the insulating body; Method 2, the terminal position ensuring member and the insulating body have a temporary snap-in structure and a final snap-in structure. When the terminal position ensuring member is snap-in to the insulating body through the temporary snap-in structure, the terminal can be withdrawn from the insulating body to facilitate replacement of the terminal.

[0003] Both of these methods of withdrawing the terminal position assurance parts require that a tool be inserted into the tool hole on the terminal position assurance part or the tool hole on the insulating body to pry and unlock the snap-fit ​​structure of the terminal position assurance part and the insulating body. However, due to the demand for miniaturization of connectors, the structural strength of the corresponding terminal position assurance part is relatively weak. Opening a tool hole on the terminal position assurance part and prying it multiple times can easily cause the terminal position assurance part to break and be damaged. In addition, the terminal position assurance part set by method one needs to be completely removed before the terminal can be taken out and replaced, and the terminal position assurance part needs to be reinstalled later, and the assembly process is cumbersome. For the terminal position assurance part set by method two, since the tool hole does not limit the prying stroke of the tool, when the prying amplitude of the tool is too large, it is also easy to cause the temporary snap-fit ​​structure of the terminal position assurance part and the insulating body to disengage and separate from the insulating body. The terminal position assurance part needs to be reassembled later, which makes the process of replacing the terminal cumbersome.

[0004] Therefore, it is necessary to design an improved electrical connector to solve the above technical problems. [Summary of the invention]

[0005] In view of the problems of the background technology, the object of the present invention is to provide an electrical connector in which a terminal position assurance member can be movably retained on an insulating body and a limiting portion is provided on one side of an insertion slot of an insertion tool to prevent the tool from excessively prying the terminal position assurance member.

[0006] In order to achieve the above-mentioned purpose, the present invention adopts the following technical scheme: an electrical connector, comprising: an insulating body, the insulating body is provided with a plurality of terminal grooves penetrating the insulating body along the front-to-back direction to accommodate a plurality of terminals, an installation groove is recessed from the outer wall surface of the insulating body along a first direction perpendicular to the front-to-back direction, the installation groove is connected to the plurality of terminal grooves, a recessed portion is recessed from at least one side of the insulating body, at least one temporary locking portion and at least one final locking portion are provided in the recessed portion, an insertion groove is recessed from the front end face or the rear end face of the insulating body and is connected to the recessed portion along the front-to-back direction, the insertion groove is used for inserting a tool, one side of the insertion groove has a first side face, and the insulating body is provided with at least one limiting portion on a side of the insertion groove facing the first side face; at least one terminal position ensuring member is installed on the insulating body along the first direction and moves between a temporary position and a final position, the terminal position ensuring member has a locking body and a self-locking member. The locking body includes a snap arm extending along the first direction, the locking body is installed in the installation slot, and at least one snap portion is protruded along a second direction from a side of the snap arm close to the insulating body, the snap portion is snapped with the final snapping portion located in the recessed portion along the first direction, so that the terminal position guarantee member is maintained in the final position, the locking body blocks the plurality of terminals from shifting backward, and the snap portion is exposed in the insertion slot; when the tool is inserted into the insertion slot and pries the snap portion along the second direction toward a direction away from the final snapping portion and disengages from the final snapping portion, the snap portion can be snapped with the temporary snapping portion, the terminal position guarantee member can be moved from the final position to the temporary position to release the plurality of terminals, and in the second direction the limiting portion is farther away from the first side than the final snapping portion, and the limiting portion is used to limit the excessive deflection of the tool and cause the snapping portion to pass over the temporary snapping portion.

[0007] Further, the second direction is perpendicular to the first direction, and two temporary locking parts and two final locking parts are provided in the recessed part, and the two final locking parts are located between the two temporary locking parts. The terminal position ensuring member has two and is respectively installed on the opposite sides of the insulating body along the first direction. In the final position, the two snap parts of the two terminal position ensuring members are both located in the recessed part and correspondingly snapped with the two final locking parts, and the two snap parts are both exposed in the insertion slot, and the maximum distance between the two snap parts along the first direction is less than the distance between the opposite end walls of the insertion slot in the first direction.

[0008] Furthermore, the two temporary locking portions are respectively two end wall surfaces opposite to each other of the recessed portion along the first direction, and the two final locking portions are both formed by protruding outward from the inner side surface of the recessed portion along the second direction, and the maximum distance between the two buckle portions along the first direction is smaller than the distance between the two final locking portions.

[0009] Furthermore, the terminal position ensuring member has two and is respectively installed on opposite sides of the insulating body along the first direction, the two temporary locking parts and the two final locking parts are arranged in the recessed part, the two snap parts of the two terminal position ensuring members can be selectively snapped with the two temporary locking parts or the two final locking parts, the insulating body is provided with two limiting parts on one side of the insertion groove, the two limiting parts respectively extend toward each other along the first direction and are separated by a distance, and the two limiting parts respectively overlap with the projections of the two snap arms of the two terminal position ensuring members along the front-rear direction.

[0010] Furthermore, the final locking portion is formed by convexly extending outward from the inner side surface of the recessed portion along the second direction, and the final locking portion does not protrude outside the recessed portion along the second direction. The temporary locking portion is composed of an end wall surface of one end of the recessed portion along the second direction, and the inner side surface of the recessed portion is connected to the end wall surface of the recessed portion. In the second direction, the inner side surface of the recessed portion is further outward than the first side surface. When the snap-fit ​​portion is snapped with the final locking portion, the snap-fit ​​portion exceeds the recessed portion along the front-to-back direction and enters the insertion groove, and the tool is located in the insertion groove to pry the snap-fit ​​portion.

[0011] Furthermore, the buckle portion exceeds the recessed portion in the front-to-back direction and enters the insertion slot, and the portion of the buckle portion entering the insertion slot has an inclined guide surface, and the guide surface is used to guide the tool to be inserted between the buckle portion and the first side surface.

[0012] Furthermore, the limiting portion has a first limiting surface and a second limiting surface facing the first side surface, the projection of the first limiting surface along the front-to-back direction is located outside the projection of the temporary locking portion along the front-to-back direction, the projection of the second limiting surface along the front-to-back direction is located outside the projection of the final locking portion along the front-to-back direction, and the second limiting surface is farther away from the first side surface than the first limiting surface.

[0013] Furthermore, the first limiting surface is formed by vertically extending along the first direction, and the second limiting surface is formed by obliquely extending from one end of the first limiting surface away from the first side surface.

[0014] Furthermore, a distance from the second limiting surface to the first side surface along the second direction is greater than a distance that the buckle portion protrudes along the second direction.

[0015] Furthermore, the insulating body is assembled in a shell, and a docking cavity is opened from the front end of the shell to the rear, the terminal position ensuring member is installed on the front section of the insulating body and enters the docking cavity together with the front section of the insulating body, the snap arm and the wall of the docking cavity have a gap in the second direction, a front seal is provided between the insulating body and the shell and is located in the docking cavity and the front seal is located behind the terminal position ensuring member, a waterproof cavity is recessed forward from the rear end surface of the insulating body, a rear seal is provided in the waterproof cavity and seals against the inner circumferential surface of the waterproof cavity, the rear seal is provided with a plurality of sealing through holes corresponding to the plurality of terminal grooves one by one, and each of the sealing through holes is used for a cable connected to each of the terminals to pass through.

[0016] Furthermore, the recessed portions are respectively recessed on both sides of the insulating body along the second direction, and the temporary locking portion and the final locking portion are provided in each of the recessed portions. Two insertion grooves are respectively provided on both sides of the insulating body corresponding to the two recessed portions, and penetrate the front end surface of the insulating body forward. The terminal position ensuring member has two snap arms, and the snap portions are provided on the two snap arms. The two snap arms are opposite to each other along the second direction, and the two snap portions of the terminal position ensuring member are respectively snapped with the final locking portions or the temporary locking portions in the two recessed portions, and the two snap portions of the terminal position ensuring member are respectively exposed in the two insertion grooves.

[0017] The present invention provides an electrical connector, comprising: an insulating body, the insulating body is provided with a plurality of terminal grooves penetrating the insulating body along the front-to-back direction to accommodate a plurality of terminals, a mounting groove is recessed from the outer wall surface of the insulating body along a first direction perpendicular to the front-to-back direction, the mounting groove is connected to the plurality of terminal grooves, a recessed portion is recessed from at least one side of the insulating body, at least one temporary locking portion and at least one final locking portion are provided in the recessed portion, an insertion groove is recessed from the front end face or the rear end face of the insulating body and is connected to the recessed portion along the front-to-back direction, the insertion groove is located on one side of the outermost terminal groove, the insertion groove has a first side surface adjacent to the terminal groove, the insulating body is provided with at least one limiting portion on a side of the insertion groove facing the first side surface, the limiting portion has a first limiting surface and a second limiting surface on a side facing the first side surface, the projection of the first limiting surface along the front-to-back direction is located outside the projection of the temporary locking portion along the front-to-back direction, the projection of the second limiting surface along the front-to-back direction is located outside the projection of the final locking portion along the front-to-back direction, and the second limiting surface The control surface is farther away from the first side surface than the first limiting surface; at least one terminal position guarantee member is installed on the insulating body along the first direction and moves between a temporary position and a final position, the terminal position guarantee member includes a locking body and a snap arm extending from the locking body along the first direction, the locking body is installed in the mounting groove, and at least one snap portion is protruded along a second direction from a side of the snap arm close to the insulating body, the snap portion is snapped with the final locking portion located in the recessed portion along the first direction, so that the terminal position guarantee member is maintained in the final position, the locking body blocks the plurality of the terminals from shifting backward, the snap portion is exposed in the insertion groove, and the distance between the second limiting surface and the first side surface along the second direction is greater than the distance of the snap portion protruding along the second direction; when the snap portion deflects along the second direction toward a direction away from the final locking portion and disengages from the final locking portion and is snapped with the temporary locking portion, the terminal position guarantee member is maintained in the temporary position, and the locking body releases the plurality of the terminals.

[0018] Further, the second direction is perpendicular to the first direction, and two temporary locking parts and two final locking parts are provided in the recessed part. The two final locking parts are located between the two temporary locking parts along the first direction. The terminal position ensuring member has two and is respectively installed on the opposite sides of the insulating body along the first direction. In the final position, the two snap parts of the two terminal position ensuring members are both located in the recessed part and correspondingly snapped with the two final locking parts, and the two snap parts are both exposed in the insertion slot, and the maximum distance between the two snap parts along the first direction is less than the distance between the opposite end walls of the insertion slot in the first direction.

[0019] Furthermore, the two temporary locking portions are respectively two end wall surfaces of the recessed portion opposite to each other along the first direction, and the two final locking portions are both formed by protruding outward from the side wall surfaces of the recessed portion along the second direction, and the maximum distance between the two snap portions of the two terminal position ensuring parts along the first direction is less than the distance between the two final locking portions.

[0020] Furthermore, the first limiting surface is formed by vertically extending along the first direction, and the second limiting surface is formed by obliquely extending from one end of the first limiting surface away from the first side surface.

[0021] Compared with the prior art, the present invention has the following beneficial effects: the terminal position guarantee member is installed on the insulating body along the first direction and moves between the temporary position and the final position, and the terminal position guarantee member is maintained in the final position by the snap-fitting portion and the final locking portion in the recessed portion being snap-fitted along the first direction, at which time the locking body can lock the plurality of terminals to prevent the terminals from exiting the terminal slot, the insertion slot is recessed from the front end face or the rear end face of the insulating body and is connected to the recessed portion in the front-to-back direction, and the snap-fitting portion is exposed in the insertion slot, so that the insertion slot can be inserted by the tool to pry the snap-fitting portion in the direction away from the final locking portion, and prying at the snap-fitting portion can reduce the prying force compared to prying at other positions of the terminal position guarantee member, so that the terminal position guarantee member is subjected to less force and is prevented from being damaged by the tool, thereby extending the service life of the terminal position guarantee member, and the insulating body is provided with the limiting portion at the first side surface facing the insertion slot, The limiting portion is arranged to be farther away from the terminal slot located at the outermost side than the final locking portion in the second direction, so that the limiting portion can allow the tool to pry the buckle portion to deflect and disengage from the final locking portion, avoiding the problem that the tool pries the buckle portion excessively and damages the terminal position guarantee member due to unlimited deflection and prying, and after the buckle portion disengages from the final locking portion, the terminal position guarantee member is moved along the first direction until the buckle portion is engaged with the temporary locking portion, the terminal position guarantee member is in the temporary position and the locking body releases a plurality of the terminals, so that the plurality of terminals can be withdrawn from the terminal slot for replacement. At this time, if the tool has a tendency to continue to pry the buckle portion due to misoperation, the limiting portion can be stopped on one side of the tool to limit the tool from continuing to deflect and causing the buckle portion to pass over the temporary locking portion and be disengaged. Therefore, the existence of the limiting portion avoids the problem that the tool pries too much and causes the terminal position guarantee member to completely separate from the insulating body from the temporary position.

Brief Description of the Drawings

[0022] Figure 1 is a three-dimensional exploded view of the electrical connector of the present invention;

[0023] Figure 2 A three-dimensional assembly diagram of the electrical connector of the present invention;

[0024] Figure 3 for Figure 2 A cross-sectional view of the terminal position assurance member when it is in the final position;

[0025] Figure 4 for Figure 2 A cross-sectional view from another angle when the terminal position assurance member is in the final position;

[0026] Figure 5 for Figure 2 A cross-sectional view of a terminal position securing member when the terminal position securing member is in a temporary position;

[0027] Figure 6 for Figure 2 A cross-sectional view from another angle when the terminal position securing member is located at a temporary position;

[0028] Figure 7 It is a three-dimensional schematic diagram of the electrical connector of the present invention without the housing and before the tool is inserted;

[0029] Figure 8 for Figure 7 A three-dimensional cutaway view after tool insertion;

[0030] Fig. 9 for Figure 7 Front view of

[0031] Fig.10 for Fig. 9 A partial cross-sectional view of

[0032] Fig.11 It is a three-dimensional schematic diagram of the electrical connector of the present invention with the housing tool omitted and being stopped by the limiting part;

[0033] Fig.12 for Fig.11 Front view of

[0034] Fig.13 for Fig.12 A partial cross-sectional view of .

[0035] Description of the accompanying drawings for the specific implementation:

[0036] [Specific implementation method]

[0037] In order to facilitate a better understanding of the purpose, structure, characteristics and effects of the present invention, the present invention is further described in conjunction with the accompanying drawings and specific implementation methods.

[0038] See also Figures 1 to 13 This is an electrical connector 100 of the present invention, comprising a shell 1 and an insulating body 2 assembled in the shell 1 along the front-to-back direction, a plurality of terminals 3 electrically connected to a plurality of cables 4 and accommodated in the insulating body 2, two terminal position assurance members 5 respectively installed on opposite sides of the insulating body 2 along a first direction perpendicular to the front-to-back direction, the terminal position assurance member 5 having a locking body 51 and two buckle arms 52 extending from both sides of the locking body 51 along the first direction respectively, a buckle portion 521 protruding from a side of each buckle arm 52 close to the insulating body 2 along a second direction, a front seal 6 sleeved between the insulating body 2 and the shell 1, a rear seal 7 accommodated in the insulating body 2, and a rear plug 8 installed on the shell 1 and located at the rear side of the insulating body 2. In this embodiment, the first direction is the up-down direction perpendicular to the front-to-back direction, and the first direction is represented by P. The second direction is the left-right direction perpendicular to the front-to-back direction and the up-down direction, and the second direction is represented by Q. In other embodiments, the first direction can also be defined as the left-right direction, and the second direction can be defined as the up-down direction.

[0039] See also Figures 1 to 4 The housing 1 includes a mating cavity 11 formed by being recessed backward from the front end of the housing 1, the terminal position ensuring member 5 is installed on the front section of the insulating body 2 and enters the mating cavity 11 together with the front section of the insulating body 2, the front sealing member 6 is sleeved on the outer peripheral surface of the insulating body 2 and is located behind the terminal position ensuring member 5, and the front sealing member 6 is used to seal the gap between a mating connector and the insulating body 2 in the mating cavity 11.

[0040] See also Figures 1 to 4The insulating body 2 includes a plurality of terminal grooves 21 that penetrate the insulating body 2 along the front-to-back direction to accommodate the plurality of terminals 3. A mounting groove 22 is recessed from the two opposite outer wall surfaces of the insulating body 2 along the first direction P. The mounting groove 22 is connected to the plurality of terminal grooves 21. A recessed portion 23 is recessed from the opposite sides of the insulating body 2, and two temporary locking portions 231 and two final locking portions 232 are provided in each of the recessed portions 23. The two temporary locking portions 231 are respectively the two end wall surfaces of the recessed portion 23 that are opposite to each other along the first direction P. The two final locking portions 232 are both formed by protruding outward from the inner side surface of the recessed portion 23 along the second direction Q and are located between the two temporary locking portions 231. The temporary locking portion 231 and the final locking portion 232 are used to keep the terminal position guarantee member 5 at a temporary position or a final position of the insulating body 2. Two insertion grooves 24 are recessed from the front end surface of the insulating body 2 to the rear, corresponding to the two recessed portions 23 on both sides and connected along the front-to-back direction. The two insertion grooves 24 are respectively located on the two opposite outer sides of the plurality of terminal grooves 21. The insertion grooves 24 are used to insert a tool 200 to pry and unlock the terminal position guarantee member 5. Each of the insertion grooves 24 has two end walls opposite to each other along a first direction, and a first side surface 241 connected between the two end walls. The first side surface 241 is closer to the terminal groove 21 located at the outermost side than the inner side surface of the recessed portion 23 connected thereto. Figure 1 , Figure 7 and Fig. 9The insulating body 2 is provided with two limiting portions 25 on one side of each of the insertion slots 24 facing the first side surface 241, that is, the two limiting portions 25 are arranged opposite to the first side surface 241 along the second direction Q, and the two limiting portions 25 extend toward each other along the first direction P respectively and are separated by a distance, and each limiting portion 25 has a first limiting surface 251 and a second limiting surface 252 facing the first side surface 241, the first limiting surface 251 extends vertically along the first direction P, and the second limiting surface 252 extends obliquely from one end of the first limiting surface 251 away from the first side surface 241, the projection of the first limiting surface 251 along the front-to-back direction is located on the outside of the projection of the temporary locking portion 231 along the front-to-back direction, and the second limiting surface 252 extends along the front-to-back direction. The projection of the final locking portion 232 is located outside the projection of the final locking portion 232 along the front-to-back direction. The second limiting surface 252 is farther away from the first side surface 241 along the second direction Q than the first limiting surface 251. The space between the limiting portion 25 and the first side surface 241 is for the tool 200 to be inserted and moved. The first limiting surface 251 and the second limiting surface 252 are both opposite to the side surface of the tool 200 inserted into the insertion groove 24 along the second direction Q. Since the second limiting surface 252 is farther away from the first side surface 241 along the second direction Q than the first limiting surface 251, the distance between the first limiting surface 251 and the side surface of the tool 200 in the second direction Q is correspondingly smaller than the distance between the second limiting surface 252 and the side surface of the tool 200. Please refer to Figure 4 A waterproof cavity 26 is also recessed from the rear end of the insulating body 2 and communicates with the plurality of terminal slots 21. The rear seal 7 is received in the waterproof cavity 26 and seals against the inner circumference of the waterproof cavity 26. The rear seal 7 is provided with a plurality of sealing through holes 71 corresponding to the plurality of terminal slots 21. Each of the sealing through holes 71 is used for passing one of the cables 4 connected to each of the terminals 3, thereby sealing the insulating body 2 to prevent impurities such as water vapor and dust from entering the terminal slot 21 from the rear to affect the electrical connection performance of the plurality of terminals, and also sealing the front end of the cables 4. The front end of the rear plug 8 extends into the waterproof cavity 26 and abuts against the rear seal 7. The rear plug 8 can prevent the rear seal 7 from withdrawing from the insulating body 2 backwards and allow the plurality of cables 4 to extend through.

[0041] See also Figure 1 ,and Figures 3 to 6, two identical terminal position ensuring members 5 are installed on the upper and lower sides of the front section of the insulating body 2, and one of the terminal position ensuring members 5 is described as follows: the terminal position ensuring member 5 has the locking body 51 extending along the second direction Q, the locking body 51 is installed in the installation groove 22, and two snap arms 52 are extended from both sides of the locking body 51 along the first direction P respectively, the two snap arms 52 are respectively installed on both sides of the insulating body 2 and have a gap with the wall surface of the docking cavity 11 in the second direction Q, the two snap portions 521 of the terminal position ensuring member 5 in the second direction Q are opposite to each other along the second direction Q, each of the snap portions 521 enters into each corresponding recessed portion 23, and is snapped with the temporary locking portion 231 or the final locking portion 232 located in the recessed portion 23, please refer to Figure 3 and Figure 4 When the buckle portion 521 is engaged with the final locking portion 232, the terminal position guarantee member 5 is maintained at the final position, and the locking body 51 blocks the plurality of terminals 3 from moving backward. Figures 7 to 10 , and the buckle portion 521 is observed from the front side to the rear side to be exposed in the insertion groove 24, the buckle portion 521 extends forward beyond the recessed portion 23 to enter the insertion groove 24, the buckle portion 521 and the first side surface 241 are spaced apart along the second direction Q, and the portion of the buckle portion 521 entering the insertion groove 24 has an inclined guide surface 5211, the guide surface 5211 is used to guide the tool 200 to be inserted between the buckle portion 521 and the first side surface 241, so as to prevent the tool 200 from excessively pushing the buckle portion 521 during insertion and damaging the terminal position assurance member 5; please refer to Figure 5 and Figure 6 When the buckle portion 521 is engaged with the temporary locking portion 231 , the terminal position assurance member 5 is located at the temporary position, and the locking body 51 releases the plurality of terminals 3 , so that the plurality of terminals 3 can be removed from the corresponding terminal slots 21 and replaced.

[0042] See also Figure 3 , Figure 4 and Figures 7 to 9When the two terminal position guarantee members 5 are maintained at the final position, the two locking bodies 51 of the two terminal position guarantee members are respectively installed in the two installation grooves 22 of the two outer wall surfaces along the first direction P, and the projections of the two snap arms 52 of the two terminal position guarantee members 5 located on the same side of the insulating body 2 along the front-to-back direction respectively overlap with the projections of the two limiting portions 25 beside one of the insertion grooves 24 along the front-to-back direction, so that the limiting portion 25 can at least partially stop the terminal position guarantee member 5 from moving forward, and the two corresponding snap portions 521 on the two snap arms 52 can be snapped into the same recessed portion 23, and the two snap portions 521 are respectively correspondingly snapped into the two final snapping portions 232, and the maximum distance between the two snap portions 521 along the first direction is less than the distance between the two final snapping portions 232, and the maximum distance between the two snap portions 521 is less than the distance between the two end walls of the insertion groove 24 in the first direction.

[0043] In this embodiment, the two mounting grooves 22 are recessed corresponding to the two terminal position ensuring members 5, the two recessed portions 23 on both sides of the insulating body 2 are recessed corresponding to the two snap portions 521 on the two snap arms 52 of one terminal position ensuring member 5, the two temporary locking portions 231 and the two final locking portions 232 located in the same recessed portion 23 are provided corresponding to the two snap portions 521 of the two terminal position ensuring members 5, and the insertion groove 24 is formed from the front end surface of the insulating body 2. It is formed by being recessed backward; in other embodiments, only one terminal position assurance member 5 may be provided, and the insulating body 2 only needs to be recessed with one installation groove 22 corresponding to the locking body 51, and the corresponding recessed portion 23 only has one temporary locking portion 231 and one final locking portion 232 for engaging with the snap portion 521, that is, the number of the terminal position assurance members 5, the number of the recessed portions 23, and the number of the temporary locking portions 231 and the final locking portions 232 located in the recessed portions 23 are not limited here. In addition, in other embodiments, the terminal position assurance member 5 may also be provided with only one snap arm 52, and the insulating body 2 also only needs to be recessed with one recessed portion 23, and the corresponding insertion slot 24 is only provided with one, that is, the number of the snap arms 52 of the terminal position assurance member 5 and the number of the insertion slots 24 are not limited here. In this embodiment, the insertion groove 24 is formed from the front end surface of the insulating body 2 to the rear. In other embodiments, the insertion groove 24 can also be formed from the rear end surface of the insulating body 2 to the front, depending on which of the front and rear end surfaces of the insulating body 2 is exposed to the outside to facilitate the entry of the tool 200.

[0044] See also Figures 7 to 13, when the two terminal position guarantee members 5 are respectively installed on the upper and lower sides of the insulating body along the first direction P, the four snap arms 52 of the two terminal position guarantee members 5 respectively correspond to the recessed parts on the left and right sides of the insulating body, and take the process of the two snap parts 521 of the two terminal position guarantee members 5 entering the same recessed part 23 as an example, the process of unlocking the two terminal position guarantee members 5 from the final position and moving them to the temporary position is described as follows: when the two terminal position guarantee members 5 are in the final position, their respective snap parts 521 are respectively snapped with the corresponding final locking parts 232, and the two snap parts 521 can both exceed the recessed part 23 forward and enter the recessed part 23. In the insertion groove 24, since the part where the buckle portion 521 enters the insertion groove 24 is provided with the inclined guide surface 5211, the tool 200 is inserted into the insertion groove 24 at the front end surface of the insulating body 2, and the tool 200 is inserted between the two buckle portions 521 and the inner side surface of the insertion groove 24 via the guide surface 5211. At this time, force is applied to rotate the tool 200 so that the tool 200 can simultaneously pry the two buckle portions 521 of the two terminal position assurance members 5 along the second direction Q toward the direction away from the final locking portion 232 until they are separated from the two final locking portions 232. The structure of the tool 200 is not limited here, as long as the final locking portion 232 can be pried smoothly. In this embodiment, the maximum distance between the two second limiting surfaces 252 along the first direction is greater than the width of the tool 200 along the first direction, and the minimum distance between the two second limiting surfaces 252 along the first direction is less than the width of the tool 200 along the first direction, so that it can be ensured that the tool 200 will not slip out from between the two limiting portions 25, and the buckle portion 521 can be pried smoothly to disengage from the final locking portion 232. The distance at which the buckle portion 521 protrudes along the second direction Q is smaller than the distance between the side surface of the tool 200 and the second limiting surface 252, thereby ensuring that the tool 200 can pry the buckle portion 521 out of the final locking portion 232 while reducing the rotation stroke of the tool 200, preventing the tool 200 from prying the buckle portion 521 without restriction and damaging the terminal position assurance member 5. After the buckle portion 521 is disengaged from the final locking portion 232 along the second direction Q, the terminal position assurance member 5 is moved along the first direction P until the buckle portion 521 is engaged with the temporary locking portion 231. The unlocking operation is completed, and the locking body 51 releases the plurality of terminals 3, thereby facilitating the removal and replacement of the terminals 3.Since the distance between the first limiting surface 251 and the side surface of the tool 200 is much smaller than the distance that the buckle portion 521 protrudes along the second direction Q, even if the tool 200 pries the buckle portion 521 due to an error in operation, the tool 200 will be stopped by the first limiting surface 251 and the buckle portion 521 cannot pass over the temporary locking portion 231. Therefore, the existence of the first limiting surface 251 makes it impossible for the tool 200 to separate the terminal position assurance member 5 from the temporary position out of the insulating body 2.

[0045] In summary, the electrical connector 100 of the present invention has the following beneficial effects:

[0046] 1. The terminal position guarantee member 5 is installed on the insulating body 2 along the first direction P and moves between the temporary position and the final position. The buckle portion 521 is engaged with the final locking portion 232 in the recessed portion 23 along the first direction P so that the terminal position guarantee member 5 is maintained in the final position. At this time, the locking body 51 can lock the plurality of terminals 3 to prevent the terminals 3 from exiting the terminal slot 21. The insertion slot 24 is recessed from the front end face or the rear end face of the insulating body 2 and is connected to the recessed portion 23 in the front-to-back direction, and the buckle portion 521 is exposed at the The insertion groove 24 is provided so that the tool 200 can be inserted into the insertion groove 24 to pry the buckle portion 521 in a direction away from the final locking portion 232, and prying at the buckle portion 521 can reduce the prying force compared to prying at other positions of the terminal position guarantee member 5, so that the terminal position guarantee member 5 is subjected to less force and is prevented from being damaged by the tool 200, thereby extending the service life of the terminal position guarantee member 5. The insulating body 2 is provided with the limiting portion 25 at the first side surface 241 facing the insertion groove 24, and the limiting portion 25 is The terminal position securing member 5 is preferably configured to be further away from the terminal slot 21 located at the outermost side than the final locking portion 232, so that the limiting portion 25 can allow the tool 200 to pry the buckle portion 521 to deflect and disengage from the final locking portion 232, thereby avoiding the problem that the tool 200 pries the buckle portion 521 excessively by deflecting and prying without restriction, thereby damaging the terminal position securing member 5, and after the buckle portion 521 is disengaged from the final locking portion 232, the terminal position securing member 5 is moved along the first direction until the buckle portion 521 is engaged with the temporary locking portion 231, and the terminal position securing member 5 is in the temporary position. When the tool 200 is in the temporary position and the locking body 51 releases the multiple terminals 3, the multiple terminals 3 can be withdrawn from the terminal slot 21 for replacement. At this time, if the tool 200 has a tendency to continue to pry the buckle portion 521 due to misoperation, the limiting portion 25 can be stopped on one side of the tool 200 to limit the tool 200 from continuing to deflect and causing the buckle portion 521 to pass over the temporary locking portion 231 and become disengaged. Therefore, the existence of the limiting portion 25 avoids the problem of the tool 200 prying too much and causing the terminal position assurance member 5 to completely separate from the temporary position from the insulating body 2.

[0047] 2. The recessed portion 23 is provided with two temporary locking portions 231 and two final locking portions 232, the two final locking portions 232 are located between the two temporary locking portions 231, and the two terminal position ensuring members 5 are respectively installed on the opposite sides of the insulating body 2 along the first direction P. In the final position, the two snap portions 521 of the two terminal position ensuring members 5 are both located in the recessed portion 23 and correspondingly snapped with the two final locking portions 232, and the two snap portions 521 are both exposed in the insertion slot 24, and the maximum distance between the two snap portions 521 along the first direction P is less than the distance between the opposite end walls of the insertion slot 24 in the first direction P. The tool 200 can be inserted into the insertion slot 24 and pry the two snap portions 521 of the two terminal position ensuring members 5 away from the final locking portions 232 at one time, which facilitates the operator to unlock multiple terminal position ensuring members 5 at the same time.

[0048] 3. The final locking portion 232 is formed by protruding outward from the inner side surface of the recessed portion 23 along the second direction Q. The final locking portion 232 does not protrude from the recessed portion 23 along the second direction Q. The temporary locking portion 231 is formed by the end wall surface of one end of the recessed portion 23 along the second direction Q. The inner side surface of the recessed portion 23 is connected to the end wall surface of the recessed portion 23. When the buckle portion 521 is engaged with the final locking portion 232, the buckle portion 521 exceeds the recessed portion 23 along the front-to-back direction and enters the insertion groove 24. The inner side surface of the recessed portion 23 is set to be larger than the insertion groove 24 in the second direction Q. The first side surface 241 is further outward, which increases the distance between the buckle portion 521 and the first side surface 241 of the insertion groove 24 along the second direction Q, which is conducive to inserting the tool 200 between the buckle portion 521 and the first side surface 241 of the insertion groove 24 to pry the buckle portion 521 in the direction away from the final locking portion 232, and the tool 200 only pries the part of the buckle portion 521 that enters the insertion groove 24, which is conducive to reducing the impact and wear of multiple prying on the part of the buckle portion 521 that is locked with the final locking portion 232 in the recessed portion 23, thereby improving the service life of the terminal position assurance component.

[0049] 4. The buckle portion 521 extends beyond the recessed portion 23 in the front-to-back direction and enters the insertion slot 24. The portion of the buckle portion 521 that enters the insertion slot 24 has an inclined guide surface 5211. The guide surface 5211 is used to guide the tool 200 to be inserted between the buckle portion 521 and the first side surface 241 of the insertion slot 24 to prevent the tool 200 from excessively squeezing the buckle portion 521 during insertion and damaging the terminal position assurance member 5.

[0050] 5. The limiting portion 25 comprises the first limiting surface 251 and the second limiting surface 252 facing the first side surface 241, the second limiting surface 252 is further away from the first side surface 241 than the first limiting surface 251, the projection of the second limiting surface 252 along the front-to-back direction is located outside the projection of the final locking portion 232 along the front-to-back direction, and the space in which the tool 200 can move when prying the buckle portion 521 engaged with the final locking portion 232 in the second direction Q is significantly larger than the space in which the tool 200 can move when prying the buckle portion 521 engaged with the temporary locking portion 231 There is a space in which the temporary locking portion 231 can move when the tool 200 is used to pry the buckle portion 521 that is engaged with the final locking portion 232, so correspondingly the second limiting surface 252 will not block the tool 200 when the tool 200 is used to pry the buckle portion 521 that is engaged with the final locking portion 232. The projection of the first limiting surface 251 along the front-to-back direction is located outside the projection of the temporary locking portion 231 along the front-to-back direction. Therefore, correspondingly the first limiting surface 251 plays a blocking role when the tool 200 is used to pry the buckle portion 521 that is engaged with the temporary locking portion 231, preventing the tool 200 from prying the buckle portion 521 beyond the temporary locking portion 231.

[0051] The above detailed description is only an explanation of the preferred embodiment of the present invention, and does not limit the patent scope of the present invention. Therefore, all equivalent technical changes made by using the description and illustrations of this creation are included in the patent scope of this creation.

Claims

1. An electrical connector, characterized in that: include: An insulating body, the insulating body is provided with a plurality of terminal grooves penetrating the insulating body in the front-to-back direction to accommodate a plurality of terminals, a mounting groove is recessed from the outer wall surface of the insulating body in a first direction perpendicular to the front-to-back direction, the mounting groove is connected to the plurality of terminal grooves, a recessed portion is recessed from at least one side of the insulating body, at least one temporary locking portion and at least one final locking portion are provided in the recessed portion, an insertion groove is recessed from the front end surface or the rear end surface of the insulating body and is connected to the recessed portion in the front-to-back direction, the insertion groove is used for inserting a tool, one side of the insertion groove has a first side surface, and the insulating body is provided with at least one limiting portion on a side of the insertion groove facing the first side surface; At least one terminal position guarantee member is installed on the insulating body along the first direction and moves between a temporary position and a final position, the terminal position guarantee member comprises a locking body and a buckle arm extending from the locking body along the first direction, the locking body is installed in the mounting groove, at least one buckle portion is protruded along a second direction from a side of the buckle arm close to the insulating body, the buckle portion is buckled with the final locking portion located in the recessed portion along the first direction, so that the terminal position guarantee member is maintained in the final position, the locking body blocks the plurality of terminals from moving backward, and the buckle portion is exposed in the insertion groove; When the tool is inserted into the insertion slot and pries the buckle portion along the second direction to deflect in the direction away from the final locking portion and disengage from the final locking portion, so that the buckle portion can be engaged with the temporary locking portion, the terminal position assurance member can be moved from the final position to the temporary position to release the plurality of terminals, and in the second direction the limiting portion is further away from the first side surface than the final locking portion, and the limiting portion is used to limit the excessive deflection of the tool and cause the buckle portion to pass over the temporary locking portion.

2. The electrical connector according to claim 1, wherein: The second direction is perpendicular to the first direction, and two temporary locking parts and two final locking parts are arranged in the recessed part, and the two final locking parts are located between the two temporary locking parts. The terminal position ensuring member has two and is respectively installed on the opposite sides of the insulating body along the first direction. In the final position, the two snap parts of the two terminal position ensuring members are both located in the recessed part and correspondingly snapped with the two final locking parts, and the two snap parts are both exposed in the insertion slot, and the maximum distance between the two snap parts along the first direction is less than the distance between the opposite end walls of the insertion slot in the first direction.

3. The electrical connector according to claim 2, wherein: The two temporary locking portions are respectively two end wall surfaces of the recessed portion opposite to each other along the first direction, and the two final locking portions are both formed by protruding outward from the inner side surface of the recessed portion along the second direction, and the maximum distance between the two buckle portions along the first direction is smaller than the distance between the two final locking portions.

4. The electrical connector according to claim 1, wherein: The terminal position ensuring members have two and are respectively installed on opposite sides of the insulating body along the first direction. The recessed portion is provided with two temporary locking portions and two final locking portions. The two snap portions of the two terminal position ensuring members can be selectively snapped with the two temporary locking portions or the two final locking portions. The insulating body is provided with two limiting portions on one side of the insertion groove. The two limiting portions extend toward each other along the first direction and are separated by a distance. The two limiting portions at least partially overlap with the projections of the two snap arms of the two terminal position ensuring members along the front-rear direction.

5. The electrical connector according to claim 1, wherein: The final locking portion is formed by convexly extending outward from the inner side surface of the recessed portion along the second direction, and the final locking portion does not protrude outside the recessed portion along the second direction. The temporary locking portion is composed of an end wall surface of one end of the recessed portion along the second direction, and the inner side surface of the recessed portion is connected to the end wall surface of the recessed portion. In the second direction, the inner side surface of the recessed portion is further outward than the first side surface. When the buckle portion is engaged with the final locking portion, the buckle portion exceeds the recessed portion along the front-to-back direction and enters the insertion groove, and the tool is located in the insertion groove to pry the buckle portion.

6. The electrical connector according to claim 1, wherein: The buckle portion exceeds the recessed portion in the front-to-back direction and enters the insertion slot, and the portion of the buckle portion entering the insertion slot has an inclined guide surface, and the guide surface is used to guide the tool to be inserted between the buckle portion and the first side surface.

7. The electrical connector according to claim 1, wherein: The limiting portion has a first limiting surface and a second limiting surface facing the first side surface, the projection of the first limiting surface along the front-to-back direction is located outside the projection of the temporary locking portion along the front-to-back direction, the projection of the second limiting surface along the front-to-back direction is located outside the projection of the final locking portion along the front-to-back direction, and the second limiting surface is farther away from the first side surface than the first limiting surface.

8. The electrical connector according to claim 7, wherein: The first limiting surface is formed by vertically extending along the first direction, and the second limiting surface is formed by obliquely extending from one end of the first limiting surface away from the first side surface.

9. The electrical connector according to claim 7, wherein: A distance from the second limiting surface to the first side surface along the second direction is greater than a distance that the buckle portion protrudes along the second direction.

10. The electrical connector according to claim 1, wherein: The insulating body is assembled in a shell, and a docking cavity is opened from the front end of the shell to the rear. The terminal position ensuring member is installed at the front section of the insulating body and enters into the docking cavity together with the front section of the insulating body. There is a gap between the snap arm and the wall of the docking cavity in the second direction. A front seal is provided between the insulating body and the shell and is located in the docking cavity and the front seal is located behind the terminal position ensuring member. A waterproof cavity is recessed forward from the rear end surface of the insulating body, and a rear seal is provided in the waterproof cavity and seals against the inner circumferential surface of the waterproof cavity. The rear seal is provided with a plurality of sealing through holes corresponding to the plurality of terminal grooves one by one, and each of the sealing through holes is used for a cable connected to each of the terminals to pass through.

11. The electrical connector according to claim 1, wherein: The recessed portions are respectively recessed on both sides of the insulating body along the second direction, and the temporary locking portion and the final locking portion are provided in each of the recessed portions. Two insertion grooves corresponding to the two recessed portions on both sides of the insulating body are respectively provided and penetrate the front end surface of the insulating body forward. The terminal position ensuring member has two snap arms, and the snap portions are provided on the two snap arms. The two snap portions of the terminal position ensuring member are opposite to each other along the second direction. The two snap portions of the terminal position ensuring member are respectively snapped with the final locking portions or the temporary locking portions in the two recessed portions, and the two snap portions of the terminal position ensuring member are respectively exposed in the two insertion grooves.

12. An electrical connector, characterized in that: include: An insulating body, the insulating body is provided with a plurality of terminal grooves penetrating the insulating body along the front-to-back direction to accommodate a plurality of terminals, a mounting groove is recessed from the outer wall surface of the insulating body along a first direction perpendicular to the front-to-back direction, the mounting groove is connected to the plurality of terminal grooves, a recessed portion is recessed from at least one side of the insulating body, at least one temporary locking portion and at least one final locking portion are provided in the recessed portion, an insertion groove is recessed from the front end surface or the rear end surface of the insulating body and is connected to the recessed portion along the front-to-back direction, the insertion groove is located on one side of the outermost terminal groove, the insertion groove has a first side surface adjacent to the terminal groove, the insulating body is provided with at least one limiting portion on a side of the insertion groove facing the first side surface, the limiting portion has a first limiting surface and a second limiting surface on a side facing the first side surface, the projection of the first limiting surface along the front-to-back direction is located outside the projection of the temporary locking portion along the front-to-back direction, the projection of the second limiting surface along the front-to-back direction is located outside the projection of the final locking portion along the front-to-back direction, and the second limiting surface is farther away from the first side surface than the first limiting surface; At least one terminal position guarantee member is installed on the insulating body along the first direction and moves between a temporary position and a final position, the terminal position guarantee member includes a locking body and a buckle arm extending from the locking body along the first direction, the locking body is installed in the installation groove, and at least one buckle portion is protruded along a second direction from a side of the buckle arm close to the insulating body, the buckle portion is engaged with the final locking portion located in the recessed portion along the first direction, so that the terminal position guarantee member is maintained in the final position, the locking body blocks the plurality of terminals from moving backward, the buckle portion is exposed in the insertion groove, and the distance between the second limiting surface and the first side surface along the second direction is greater than the distance of the buckle portion protruding along the second direction; When the buckle portion deflects along the second direction toward a direction away from the final locking portion and disengages from the final locking portion and is locked to the temporary locking portion, the terminal position ensuring member remains in the temporary position and the locking body releases the plurality of terminals.

13. The electrical connector according to claim 12, wherein: The second direction is perpendicular to the first direction, and two temporary locking parts and two final locking parts are arranged in the recessed part. The two final locking parts are located between the two temporary locking parts along the first direction. The terminal position ensuring member has two and is respectively installed on the opposite sides of the insulating body along the first direction. In the final position, the two snap parts of the two terminal position ensuring members are both located in the recessed part and correspondingly snapped with the two final locking parts, and the two snap parts are both exposed in the insertion slot, and the maximum distance between the two snap parts along the first direction is less than the distance between the opposite end walls of the insertion slot in the first direction.

14. The electrical connector according to claim 13, wherein: The two temporary locking portions are respectively two end wall surfaces of the recessed portion opposite to each other along the first direction, and the two final locking portions are both formed by protruding outward from the side wall surfaces of the recessed portion along the second direction, and the maximum distance between the two snap portions of the two terminal position ensuring parts along the first direction is less than the distance between the two final locking portions.

15. The electrical connector according to claim 12, wherein: The first limiting surface is formed by vertically extending along the first direction, and the second limiting surface is formed by obliquely extending from one end of the first limiting surface away from the first side surface.

Images