CN106816737B - Connecting Terminals and Connecting Components - Google Patents

Abstract

The invention discloses a connecting terminal and a connecting assembly. The connecting terminal comprises a body, an inserting part and a connecting part. The inserting part and the connecting part are respectively arranged at two ends of the body. The body comprises a supporting base, and an installation side wall and a supporting wall which are arranged on two sides of the supporting base. The body is provided with a primary locking part. The primary locking part comprises a connecting part and a first blocking part. The connecting part is arranged on the body. The first blocking part is arranged on the connecting part and extends reversely along the plugging direction. The first blocking part is provided with a supporting part which protrudes out of the first blocking part along the transverse direction and extends to the mounting side wall or the supporting wall. The connecting terminal has high mechanical strength and strong bearing capacity, thereby being stably arranged in the shell.

Description

Connecting Terminals and Connecting Components

technical field

The invention relates to the field of connectors, in particular to a connection terminal and a connection assembly.

Background technique

The connection terminals are used to realize electrical connection between different electronic components. In order to facilitate assembly, insulation or fixation, the connection terminals are generally arranged in the connector housing. Correspondingly, a corresponding blocking structure is generally provided in the connector housing to fix the connection terminal. The connection terminal is correspondingly provided with a structure for stably mounting to achieve a stably arranged in the connector housing.

SUMMARY OF THE INVENTION

One of the objectives of the present invention is to provide a connection terminal and a connection assembly with high mechanical strength and stable connection in order to overcome the deficiencies in the prior art.

To achieve the above object, the present invention is achieved through the following technical solutions:

A connection terminal is characterized in that it comprises a main body, a plug-in part and a connection part; the plug-in part and the connection part are respectively arranged at both ends of the main body; the main body comprises a support base, and is provided with Installation side walls and support walls on both sides of the support base;

The main body is provided with a primary locking portion;

The primary locking portion includes a connecting portion and a first blocking portion;

the connecting part is arranged on the body;

the first blocking part is arranged on the connecting part and extends in the opposite direction along the insertion direction;

The first blocking part is provided with a supporting part, and the supporting part protrudes from the first blocking part in the lateral direction and extends to the top of the installation side wall or the supporting wall.

Preferably, the first blocking portion is located between the mounting side wall and the supporting wall, and the supporting portion extends laterally from the first blocking portion to beyond the inner side surface of the mounting side wall or the supporting wall inner side.

Preferably, the support parts are provided on both lateral sides of the first blocking part.

Preferably, the first blocking portion includes:

a parallel segment, the parallel segment is arranged parallel to the connecting portion;

an inclined section, the inclined section is arranged on the end of the parallel section and extends along a direction whose included angle is an obtuse angle with the insertion direction of the connection terminal;

The inclined section is arranged to be biased when the insertion is stressed, so as to increase the included angle between the inclined section and the insertion direction of the connection terminal.

Preferably, the free end of the first blocking part is provided with a protruding platform, and the rear end surface of the protruding platform is a blocking surface.

Preferably, the free end of the first blocking portion has a blocking surface, and the blocking surface is perpendicular to the insertion direction of the connecting terminal.

Preferably, the connecting portion has a protruding first protruding portion, the first protruding portion extending toward the mounting side wall;

A first support hole is opened on the installation side wall, and the first support hole is opened into a blind hole or a through hole from the inner side to the outer side of the installation side wall;

The first protruding portion is inserted into the first supporting hole to connect the connecting portion with the mounting side wall.

Preferably, there is clearance fit between the first protrusion and the hole wall of the first support hole.

Preferably, the lower part of the first support hole is provided with an inner concave part, and the upper part of the inner concave part is in contact with the first protruding part.

Preferably, the support portion includes a bent side arm, the bent side arm is connected to the first blocking portion and is located on one side of the first blocking portion, and the bent side wall is arranged to be close to the first blocking portion. The direction of the support base is bent.

Preferably, a support protrusion is provided on the support wall; the support protrusion extends toward the bent side arm and is opposite to the bent side arm.

Preferably, the support part includes a stop protrusion; the stop protrusion is provided at the free end of the first blocking part and protrudes toward one side of the first blocking part; the installation side wall also has openings There is a stop notch; the stop protrusion extends into the stop notch.

Preferably, a protruding platform is provided at the free end of the first blocking portion; the upper surface of the stopper protruding portion is coplanar with the upper surface of the protruding platform.

Preferably, the stop notch is formed by a stop hole wall arranged on the installation side wall; the height of the bottom edge of the stop hole wall is set so that when the bottom edge of the stop hole wall is equal to the height of the bottom edge of the stop hole wall The bottom edge of the retaining hole wall prevents the first blocking portion from being over-biased when the retaining protrusions are in contact.

Preferably, the support portion includes a limiting portion; the limiting portion is provided on the first blocking portion and protrudes toward the other side of the first blocking portion;

A limiting hole is provided on the mounting side wall, and the limiting hole is opened as a through hole or a blind hole from the inner side to the outer side of the mounting side wall;

the limiting portion is inserted into the limiting hole;

The limiting hole is used to limit the movement range of the limiting portion so as to limit the variation range of the distance of the first blocking portion relative to the base.

Preferably, the limiting hole is set so that the distance from the center of the limiting hole to the free end of the first blocking portion in a direction parallel to the support base is smaller than the distance to the setting end.

Preferably, the limiting hole is formed by a limiting hole wall disposed on the installation side wall; the front edge of the limiting hole wall is set so that when the first blocking portion is biased downward by force, The front edge of the limiting hole wall is in contact with the limiting portion on the first blocking portion, preventing the first blocking portion from being over-biased.

Preferably, the connecting terminal further includes a second blocking portion, the second blocking portion is protrudingly disposed on the support wall, and the second blocking portion and the first blocking portion are arranged in sequence along the insertion direction of the connecting terminal , the maximum height from the second blocking portion to the support base is smaller than the height from the free end of the first blocking portion to the support base.

Preferably, the second blocking portion extends toward the mounting sidewall and has a protruding portion;

The installation side wall is provided with a second support hole, and the second support hole is opened into a blind hole or a through hole from the inner side to the outer side of the installation side wall;

The protruding portion is configured to be inserted into the second support hole.

Preferably, there is clearance fit between the protruding part and the hole wall of the second support hole.

Preferably, the connection terminal further includes a third blocking portion, and the third blocking portion is provided on the support base;

The third blocking portion, the second blocking portion and the first blocking portion are arranged in sequence along the insertion direction of the connecting terminal;

The third blocking portion is disposed facing the rear of the second blocking portion, and the projected area of the third blocking portion on the cross section of the connection terminal is larger than the projected area of the second blocking portion.

Preferably, the third blocking portion extends from the installation side wall to the support wall;

The support wall is provided with a limiting notch;

The third blocking portion is configured to be inserted into the limiting notch.

Preferably, a lateral gap is provided between the primary locking portion and the installation side wall, and the lateral gap is evenly set along the insertion direction of the connection terminal.

Preferably, the support wall includes an inclined end surface, and the inclined end surface is located at the connection between the support wall and the primary locking portion, and is inclined backward from top to bottom.

Preferably, the connection terminal is a single piece.

Preferably, the connection terminal is made by stamping a whole piece of brass plate.

A connection assembly includes a housing and a connection terminal according to any one of the foregoing, wherein the connection terminal is arranged in the housing.

Compared with the prior art, the connecting terminal of the present invention has high mechanical strength and strong pressure bearing capacity, so that it can be stably installed in the housing. Preferably, the connecting terminal of the present invention is made of brass in one piece, which not only saves the manufacturing cost, but also obtains the required mechanical strength. The installation side wall of the connection terminal not only provides a correct installation direction, but also has corresponding holes and gaps to support other components. In addition, the limiting hole opened on the installation side wall provides the first blocking part with a force bearing point, and makes the force arm of the free end of the first blocking part shorter, so that the free end can withstand greater pressure. One side of the first blocking portion has a bent side wall, which can further prevent the first blocking portion from being arched and bent. In addition, the primary locking portion of the connection terminal cooperates with the second and third blocking portions to form a secondary locking structure, which further improves the stable installation performance. The front portion of the primary locking portion of the connection terminal is provided with a backstop protrusion to provide support when the insertion portion is subjected to a large pressing force.

Description of drawings

FIG. 1 is a schematic structural diagram of a connecting assembly of the present invention.

FIG. 2 is an exploded perspective view of the connection assembly of FIG. 1 .

FIG. 3 is one of the schematic structural diagrams of the connection terminal in FIG. 2 .

FIG. 4 is a second schematic diagram of the structure of the connection terminal in FIG. 2 .

FIG. 5 is a plan view of the connection terminal in the direction of arrow X in FIG. 4 .

FIG. 6 is a front view of one side of the connection terminal in FIG. 2 .

FIG. 7 is a front view of the other side of the connection terminal in FIG. 6 .

FIG. 8 is an enlarged schematic view of C in FIG. 3 .

FIG. 9 is a cross-sectional view of the connection terminal in FIG. 3 taken along the line A-A.

FIG. 10 is an enlarged schematic view of D in FIG. 9 .

FIG. 11 is a cross-sectional view of the connection terminal in FIG. 3 taken along the line B-B.

FIG. 12 is a cross-sectional view of the connection terminal in FIG. 5 taken along the line E-E.

FIG. 13 is a cross-sectional view of the connection terminal in FIG. 5 taken along the line F-F.

Detailed ways

The present invention is described in detail below in conjunction with the accompanying drawings:

Please refer to FIG. 1 and FIG. 2 , which are a connection assembly 100 provided by the present invention. The connecting assembly 100 includes a casing 101 and a connecting terminal 102 disposed in the casing 101 . It is conceivable that the connecting assembly 100 may also include corresponding connecting wires or components to realize the electrical connection function, which is the prior art and is not the focus of the problem to be solved by the present invention, and will not be repeated here. .

The shape and material of the casing 101 are selected according to installation requirements. The housing 101 can be made in one piece by injection molding. In this embodiment, an accommodating space for accommodating the connecting terminal 102 is provided inside the casing 101 . The inside of the housing 101 is provided with a blocking structure that cooperates with the connecting terminal 102 to realize a primary lock and a secondary lock. A slot for accommodating the following mounting side wall 30 of the connecting terminal 102 is also defined inside the casing 101 . The structure and material of the casing 101 are not the focus of the present invention, and will not be repeated here.

Please refer to FIG. 3 to FIG. 10 together. The connecting terminal 102 includes a main body 10 , a plug portion 50 and a connecting portion 60 disposed at both ends of the main body 10 , wherein the plug portion 50 can be used for electrical connection with the mating terminal. The connecting portion 60 can be used for connecting wires. The main body 10 of the connection terminal 102 is provided with a primary locking portion 20 for holding the connection terminal 102 inside the housing 101 . In an embodiment of the present invention, the body 10 of the connection terminal 102 includes a support base 12 , and installation side walls 30 and support walls 40 disposed on both sides of the support base 12 . Preferably, the body 10 of the connection terminal 102 is punched and bent from a plate. The primary locking portion 20 of the connection terminal 102 is provided on the support wall 40 . In another preferred embodiment of the present invention, the connecting terminal 102 is a single piece, and the body 10, the plug-in portion 50 and the connecting portion 60 are punched and formed by bending a plate. The body 10 extends along the insertion direction of the connection terminal 102 . The body 10 is used to support the primary locking portion 20 . The shape and material of the body 10 are selected according to application requirements. In this embodiment, the body 10 is provided with a groove extending along the insertion direction of the connection terminal 102 . Preferably, a support protrusion 11 is protruded from one side wall of the body 10 . The supporting protrusions 11 extend along the bottom of the primary locking portion 20 , and are opposite to the following bending side arms 225 , so as to support the primary locking portion 20 and avoid the primary locking portion 20 . Press down too much. In an embodiment of the present invention, the support protrusion 11 is disposed on the support wall 40 on one side of the support base 12 . The support wall 40 is protruded on one side of the support base 12 . The height of the support wall 40 is lower than that of the installation side wall 30 . In this embodiment, the support wall 40 includes an inclined end surface 401 . The inclined end surface 401 is located at the connection between the support wall 40 and the primary locking portion 20 and is inclined from top to bottom to enhance the connection between the support wall 40 and the primary locking portion 20 Therefore, the supporting wall 40 and the primary locking portion 20 can be prevented from being broken when subjected to a large external force. Preferably, a side wall of the main body 10 is further provided with a limiting notch 402 . The limiting notch 402 is used to limit the movement of the third blocking portion 42 described below. In another embodiment of the present invention, the limiting notch 402 is provided on the support wall 40 on one side of the support base 12 .

The primary locking portion 20 includes a connecting portion 21 provided on the main body 10 , and a first blocking portion 22 and a backstop protrusion 23 respectively provided on both ends of the connecting portion 21 . The first blocking portion 22 , the connecting portion 21 and the backstop protrusion 23 are arranged in sequence along the insertion direction of the connecting terminal 102 . In a preferred embodiment of the present invention, the connecting portion 21 is disposed on one side of the supporting wall 40 and is bent and extended toward the other side. A first protruding portion 211 is protruded from the free end of the connecting portion 21 . The first protruding portion 211 extends into the following first support hole 31 of the installation side wall 30 to support the connecting portion 21 , so that the connecting portion 21 has a greater bearing capacity and is not easily deformed or deformed. It can be broken, and the laser spot welding which is difficult to operate can be avoided to save the process and cost.

In order to enhance the pressure bearing capacity of the first blocking part 22 , the first blocking part 22 is provided with a supporting part, the supporting part protrudes from the first blocking part 22 in the lateral direction and extends to the installation side wall 30 or above the support wall 40 . In order to further enhance the pressure bearing capacity of the first blocking portion 22 , the supporting portions are provided on both lateral sides of the blocking portion. In this embodiment, the supporting portion may be a bending side wall 225 disposed on one lateral side of the first blocking portion 22 , a limiting portion 226 and a stopping protrusion 2201 disposed on the other side, respectively. . The specific structure and matching relationship of the bending side wall 225 , the limiting portion 226 and the stopping protrusion 2201 will be described in the following content. Of course, the support portion may also be a protruding column, a flange or a protruding plate, as long as it can be supported by the installation side wall 30 or the support wall 40 . The first blocking portion 22 is located between the mounting side wall 30 and the supporting wall 40 , and the limiting portion 226 and the stopping protrusion 2201 are left from the first blocking portion 22 along the lateral direction as shown in FIG. 13 . Extending beyond the inner side surface 301 of the mounting side wall, the mounting side wall 30 can support the limiting portion 226 and the blocking protrusion 2201 after the limiting portion 226 and the blocking protrusion 2201 move downward for a certain distance. The bent side wall 225 extends rightward from the first blocking portion 22 in the lateral direction as shown in FIG. 13 to the inner side surface 405 of the support wall, so that the support wall 40 can support the bent side wall 225 downward. The bent side wall 225 is supported after moving a certain distance.

It should be noted that the “front end” and “tail end” (or rear end) mentioned in the present invention refer to the front part and the rear part along the insertion direction of the connection terminal 102 . In addition, the insertion direction of the connection terminal 102 refers to that the connection segment 102 is inserted in the "forward" direction. Unless otherwise specified, “both sides” refers to both sides of the connection terminal 102 in the insertion direction or both sides of the connection terminal 102 in the axial direction. “One side” refers to the side of the connection terminal 102 where the mounting side wall 30 is not provided, and “the other side” refers to a side of the connection terminal 102 where the mounting side wall 30 is provided side, and "one side" and "the other side" are opposite. The "set end" or "fixed end" mentioned in the present invention means that the end is fixedly connected with other components or fixedly arranged on a certain component. "Free end" means that the end is not connected to other components or can move. "Top", "upper surface" or "top" refers to the upper part where the connection terminal 102 cooperates with the blocking structure in the housing 101 , that is, the connection terminal 102 has the primary locking portion 20 on it. orientation. "Lower", "lower surface" or "bottom" is opposite to "upper", "upper surface" or "top" and refers to the orientation of the body 10 that the connection terminal 102 has. The “inside of the installation side wall 30 ” refers to the side facing the primary locking portion 20 . “Outer side of the installation side wall 30 ” refers to the side away from the primary locking portion 20 . It should be noted that the "horizontal" mentioned in the present invention refers to the insertion direction perpendicular to the connecting terminal 102, and the plane formed by the "horizontal" and the "insertion direction" is parallel to the The lateral direction of the support base 12 is the left-right direction as shown in FIG. 12 .

Please refer to FIG. 4 , FIG. 11 and FIG. 12 together, the first blocking portion 22 is protrudingly disposed on the rear end of the connecting portion 21 . It should be noted that the first blocking portion 22 only needs to be protruded on the main body 10, for example, the end of the first blocking portion 22 can be protruded on the two side walls of the main body 10, or protruded on the main body 10. The bottom of the groove of the body 10 is superior. It is a preferred embodiment of the present invention that the first blocking portion 22 protrudes from the connecting portion 21 . The protruding arrangement of the first blocking portion 22 on the connecting portion 21 can facilitate manufacturing, obtain greater pressure bearing capacity, and enable the groove of the main body 10 to have a larger accommodating space, and many other beneficial effects. As indicated by the angle in FIG. 4 , the first blocking portion 22 is along the insertion direction of the connection terminal 102 (the insertion direction of the insertion terminal 102 mentioned in the present invention is the direction indicated by the arrow T1 ) The included angle between ) extends in the direction of the obtuse angle α (the extending direction and the direction indicated by the arrow T2 ), that is, the first blocking portion 22 is tilted upward and rearward of the main body 10 . The size of the obtuse angle α between the first blocking portion 22 and the insertion direction of the connecting terminal 102 can be selected according to the pressure bearing capacity, elastic recovery capacity and installation space of the first blocking portion 22 .

The first blocking portion 22 has a setting end 221 and a free end 222 . The setting end 221 of the first blocking portion 22 is arranged on the connecting portion 21 . The free end 222 of the first blocking portion 22 has the largest height relative to the main body 10 , so as to abut against the locking structure or blocking structure in the housing 101 and press down relative to the main body 10 .

Preferably, the first blocking portion 22 further includes a parallel segment 223 and an inclined segment 224 . The area and shape of the upper surfaces of the parallel section 223 and the inclined section 224 may satisfy the matching and abutting with the blocking structure in the housing 101 . The parallel section 223 is arranged parallel to the support base 12 . In this embodiment, one end (ie, the front end) of the parallel segment 223 is disposed on the connecting portion 21 through the disposing end 221 . The parallel section 223 can withstand the pressure transmitted by the inclined section 224 to prevent excessive pressure from being transmitted to the setting end 221 , thereby making the connection of the first blocking portion 22 more stable. In addition, the parallel section 223 can increase the contact area between the primary locking portion 20 and the inner cavity wall of the housing 101 , so that the primary locking portion 20 is more elastic and less likely to lose elastic deformation. Preferably, one side of the parallel section 223 is disposed to be opposite to the support protrusion 11 on the body 10 . The inclined section 224 is provided on the other end (or rear end) of the parallel section 223 . The inclined section 224 extends along a direction which is an obtuse angle with the insertion direction of the connection terminal 102 . The inclined section 224 has a length greater than that of the parallel section 223, so as to have a larger range of motion when subjected to force.

Preferably, the first blocking portion 22 also has a bent side arm 225 . The bending side arm 225 is formed by bending one side of the first blocking portion 22 in a direction close to the supporting base 12 . Preferably, the bent side arm 225 is set to be flush with the two ends of one side of the parallel section 223 and the inclined section 224 , that is, the front end of the bent side arm 225 and the connecting portion 21 with interval. The bending side arms 225 can further enhance the pressure bearing capacity of the first blocking portion 22 and prevent the first blocking portion 22 from being arched and bent under force. Preferably, the portion of the bent side arm 225 disposed on one side of the flat plate segment 223 is opposite to the support protrusion 11 on the support base 12 .

Preferably, a limiting portion 226 is further protruded from the other side of the first blocking portion 22 . The limiting portion 226 extends toward the other side of the connection terminal 102 . The limiting portion 226 is configured to extend and insert into the limiting hole 32 of the mounting side wall 30 described below. The limiting portion 226 may be in the shape of a bump or a rod. The limiting portion 226 cooperates with the limiting hole 32 , so as to prevent the first blocking portion 22 from being damaged by excessively pressing down or pulling up by the blocking structure in the housing 101 . A blocking portion 22 . Preferably, the distance from the limiting portion 226 to the free end 222 of the first blocking portion 22 is smaller than the distance to the setting end 221 , that is, the force arm from the free end 222 to the limiting portion 226 is less than The setting end 221 is connected to the force arm of the limiting portion 226 , so that the first blocking portion 22 can have a greater bearing capacity.

Preferably, the primary locking portion 20 is provided thereon. In an embodiment of the present invention, it is an inward (or downward) concave portion provided on the primary locking portion 20 . In another embodiment of the present invention, it is an outward (or upward) protruding portion provided on the primary locking portion 20 . Reinforcing structures such as protruding ribs can also be used.

Preferably, the free end 222 of the first blocking portion 22 is further provided with a guide groove 228 . The guide groove 228 gradually deepens in depth along the reverse direction of the insertion direction of the connection terminal 102 . The width of the guide groove 228 is selected according to the blocking structure in the housing 101 . The extension length and the maximum depth of the guide groove 228 are selected according to the force of the guide groove 228 and the blocking structure in the housing 101 . Preferably, the guide groove 228 is made by stamping.

Preferably, the first blocking portion 22 further includes protruding platforms 229 respectively provided on both sides of the guide groove 228 . The free end 222 of the first blocking portion 22 also has a blocking surface 2291 . The blocking surface 2291 is perpendicular to the insertion direction of the connecting terminal 102 . In this embodiment, the blocking surface 2291 is set perpendicular to the support base 12 , so as to have a larger contact area when blocking with the blocking structure in the housing 101 and make the first blocking portion 22 more compact It is difficult to exit the blocking of the blocking structure.

Please also refer to FIG. 13 , preferably, a stop protrusion 2201 is protruded from the other side of the free end 222 of the first blocking portion 22 . The stop protrusion 2201 is configured to extend into the stop notch 33 of the mounting side wall 30 described below. The stop protrusion 2201 is used to prevent the free end 222 from being damaged due to excessive depression. Preferably, the stop protrusion 2201 is set to be flush with the outer side of the installation side wall 30 , so as to prevent the connection terminal 102 from being easily slipped off from the stop notch 33 due to insufficient protrusion length and at the same time. Flat and easy to assemble. Preferably, the upper surface of the stop protrusion 2201 and the upper surface of the protruding platform 229 are coplanar, so as to facilitate manufacture and facilitate the installation and cooperation of the mating connection structure. In the example shown in FIG. 12 , the stopping protrusion 2201 protrudes from the first blocking part 22 to the left in the lateral direction, and extends beyond the inner side surface 301 of the mounting side wall in the lateral direction.

In this embodiment, the guide groove 228 is punched and formed from a single piece of brass plate. The brass sheet has a uniform thickness and smooth edges. The guide groove 228 is formed on the edge recess of the brass plate, and the protruding platform 229 is formed on both sides of the guide groove 228 . Please continue to refer to FIG. 2 to FIG. 12 , the backstop protrusion 23 is protruded from the front end of the connecting portion 21 . The back-stop protrusion 23 is used to prevent the plug-in part 50 from supporting the plug-in part 50 when the plug-in part 50 retreats due to a large resistance, so that the plug-in part 50 can overcome the large resistance to realize the plug-in connection.

Please continue to refer to FIG. 5 , in this embodiment, a lateral gap (not numbered in the figure) is set between the primary locking portion 20 and the installation side wall 30 , and the lateral gap is along the insertion direction of the connecting terminal 102 . The connection direction is set evenly. The lateral gap enables the primary locking portion 20 to have a telescopic margin when the primary locking portion 20 expands under conditions such as heat. In addition, the lateral gap can facilitate the manufacture of the primary locking portion 20 , especially when it is facilitated to be bent into one piece by stamping.

Please continue to refer to FIG. 2 to FIG. 12 , the installation side wall 30 is disposed on the other side of the support base 12 . The height setting of the installation side wall 30 only needs to conform to opening corresponding holes and grooves to support the primary locking portion 20 . The installation side wall 30 is used for matching with the slot in the housing 101, so that the connection terminal 102 can only be installed in the correct way with the support base 12 on the bottom and the primary locking portion 20 on the top In the casing 101 , the connecting terminal 102 is prevented from being installed in other wrong ways and cannot work normally, and the casing 101 can prevent the connecting terminal 102 from being unnecessarily squeezed and damaging the connecting terminal 102 .

In this embodiment, the inner side of the installation side wall 30 is provided with a first support hole 31 . The first supporting hole 31 cooperates with the first protruding portion 211 on the connecting portion 21 to support the connecting portion 21 . Preferably, the first supporting hole 31 is in clearance fit with the first protruding portion 211 , so that the connection terminal 102 is easier to manufacture, that is, easier to bend, and the first protruding portion 211 has Larger activity margin.

The inner side of the installation side wall 30 also defines a limiting hole 32 . The limiting hole 32 cooperates with the limiting portion 226 on the first blocking portion 22 to further support the primary locking portion 20 . The center of the limiting hole 32 is set so that the distance to the free end 222 of the first blocking portion 22 in the direction parallel to the support base 12 is smaller than the distance to the setting end 221, that is, the The moment arm from the free end 222 to the center of the limiting hole 32 is smaller than the moment arm from the setting end 221 to the center of the limiting hole 32 . Preferably, the limiting hole 32 has a front edge. The front side, that is, the limiting hole 32 is close to the hole wall of the plug-in portion 50 . The front edge of the limiting hole 32 is configured to be in contact with the limiting portion 226 when the first blocking portion 22 is pressed down by force, so as to prevent the limiting portion 226 from being over-biased.

Preferably, the mounting side wall 30 is further provided with a stop notch 33 or a stop groove. The stop notch 33 cooperates with the stop protrusion 2201 to prevent the free end 222 of the first blocking portion 22 from being pressed down excessively, so that the free end 222 loses the elastic deformation ability. The stop groove is opened along the movement path of the stop protrusion 2201 . The opening depth of the stop notch 33 or the stop groove is selected according to the safe depression range of the free end 222 . Preferably, the blocking notch 33 makes the protruding extension length of the blocking protrusion 2201 longer, so that the blocking protrusion 2201 can be stably supported and not easily slipped off. In this embodiment, the stop notch 33 is formed by a stop hole wall arranged on the installation side wall 30 ; the height of the bottom edge of the stop hole wall is set to When the bottom edge of the wall is in contact with the blocking protrusion 2201 , the bottom edge of the blocking hole wall prevents the first blocking portion 22 from being over-biased.

Preferably, a second support hole 34 is also opened on the installation side wall 30 . The second support hole 34 is used to support the second blocking portion 41 described below. It is further specified that the second support hole 34 , the stop notch 33 , the limiting hole 32 and the first support hole 31 are arranged in sequence along the insertion direction of the connection terminal 102 . In addition, the second supporting hole 34 , the limiting hole 32 and the first supporting hole 31 may be respectively opened as blind holes or through holes from the inner side to the outer side of the mounting side wall 30 . Preferably, the second supporting hole 34 , the limiting hole 32 and the first supporting hole 31 can be respectively opened as through holes from the inner side to the outer side of the mounting side wall 30 , so that the corresponding protrusions extend their lengths. Longer and has better stable stop performance.

The installation side wall 30 is further provided with an inner recess 311 at the lower part of the first support hole 31 . The inner recessed portion 311 is recessed from the outer side of the installation side wall 30 to the inner side by punching, that is, the inner recess portion 311 is recessed from the installation side wall 30 to the opposite side supporting wall 40 . When supporting the first protruding portion 211 of the connecting portion 21 , the inner concave portion 311 not only has a greater mechanical bearing capacity, but also makes the first protruding portion 211 less likely to slip off. Please continue to refer to FIG. 2 to FIG. 12 , the second blocking portion 41 protrudes from the supporting wall. The height from the second blocking portion 41 to the support base 12 is smaller than the height from the first blocking portion 22 to the support base 12 , so that the connection terminal 102 has an upper space for accommodating the The blocking structure in the casing 101 that blocks the first blocking portion 22 . The second blocking portion 41 is used to cooperate with the secondary blocking structure in the housing 101 to achieve secondary locking of the connecting terminal 102 , thereby further improving the stable installation performance of the connecting terminal 102 . In this embodiment, the second blocking portion 41 is bent from one side of the supporting base 12 to the other side. Preferably, the second blocking part 41 has a protruding part 411 . The protruding portion setting portion 411 extends along the other side toward the support base 12 . The protruding portion 411 is inserted into the second supporting hole 34 . Preferably, the protruding part 411 is set to be flush with the outer side of the installation side wall 30 , so that the second blocking part 41 can obtain stable pressure bearing performance, and can also make the installation side wall 30 The outside is flat and easy to install.

Please continue to refer to FIG. 2 to FIG. 12 , the third blocking portion 42 is disposed on the support base 12 . The third blocking portion 42 , the second blocking portion 41 and the first blocking portion 22 are arranged in sequence along the insertion direction of the connecting terminal 102 . The third blocking portion 42 is disposed opposite to the rear of the second blocking portion 41 . The projected area of the third blocking portion 42 on the cross-section of the connection terminal 102 is larger than the projected area of the second blocking portion 41 , so that the third blocking portion 42 is in contact with the housing 101 twice. When the blocking structures are in contact with each other, they have a larger contact area, thereby improving the stability of the connection terminals 102 disposed in the housing 101 . Preferably, the third blocking portion 42 is bent from the other side of the support base 12 to one side. The third blocking portion 42 extends into the limiting notch 402 on one side of the support base 12 , so that the third blocking portion 42 is not easy to move and obtains stable performance.

Please continue to refer to FIG. 2 to FIG. 12 , the inserting portion 50 is used for inserting and mating with the female terminal or the socket. The shape and specification of the plug-in portion 50 are selected according to the plug-in requirements. The plug-in portion 50 may be provided in a cylindrical shape. Preferably, the plug-in portion 50 is formed into a rectangular column by punching a metal plate. In this embodiment, the metal plate is brass with uniform thickness. The top end of the plug-in portion 50 may be configured as a triangular pyramid or a cone. In this embodiment, the top end of the plug-in portion 50 is set in a quadrangular pyramid shape. A back-end portion 51 is provided at the rear end of the plug-in portion 50 . The backstop portion 51 is disposed opposite to the backstop protruding portion 23 of the primary locking portion 20 . The backstop protruding portion 23 and the backstop portion 51 are arranged along the insertion direction of the connecting terminal, and the backstop portion 51 cooperates with the backstop projection 23 to realize the insertion portion 50 when it is subjected to a large resistance. Has high pressure bearing capacity.

Please continue to refer to FIG. 11 , the reference numeral 405 is the inner side surface of the support wall 40 . Please continue to refer to FIG. 12 and FIG. 13 , the supporting portion extends laterally from the first blocking portion 22 and extends beyond the inner side surface 301 of the mounting side wall or the inner side surface 405 of the supporting wall, that is, the supporting portion Can protrude to both sides to be supported by the installation side wall 30 and/or the support wall 40, so that the support part can be supported by the installation side wall 30 or the support wall 40 without passing through Welding realizes support to enhance the bearing capacity of the support portion. In this embodiment, the supporting portion includes the bending side wall 225 , the limiting portion 226 and the stopping protrusion 2201 .

Please continue to refer to FIG. 2 to FIG. 7 , FIG. 9 , FIG. 11 and FIG. 12 , the connecting portion 60 is disposed at the rear of the main body 10 . The connecting portion 60 is used for connecting wires. The shape and structure of the connecting portion 60 are selected according to the requirements of wiring and installation.

Preferably, the connection terminal 102 is made into one piece by stamping. The connection terminal 102 is made of any conductor material, such as iron, steel or alloy. In this embodiment, the connecting terminal 102 is made of a brass plate with a uniform thickness and is made into a single piece by stamping. The use of brass for the connection terminal 102 does not meet the compressive strength required by the product, and saves material costs.

Compared with the prior art, the connecting terminal 102 of the present invention has high mechanical strength and strong pressure bearing capacity, so that it can be stably installed in the housing. Preferably, the connecting terminal 102 of the present invention is made of brass in one piece, which not only saves the manufacturing cost, but also obtains the required mechanical strength. The installation side wall 30 of the connection terminal 102 not only provides a correct installation direction, but also has corresponding holes and gaps to support other components. In addition, the limiting hole 32 opened on the mounting side wall 30 provides the first blocking part 22 with a force bearing point, and makes the force arm of the free end of the first blocking part 22 shorter, so that the free end can be under greater pressure. One side of the first blocking portion 22 has a bent side wall 225 , which can further prevent the first blocking portion 22 from being arched and bent. In addition, the primary locking portion 20 of the connecting terminal cooperates with the second and third blocking portions to form a secondary locking structure, which further improves the stable installation performance. The front portion of the primary locking portion 20 of the connecting terminal is provided with a backstop protrusion 23 to provide support when the plug portion 50 is subjected to a large pressing force.

The above are only preferred embodiments of the present invention and are not intended to limit the protection scope of the present invention. Any modifications, equivalent replacements or improvements within the spirit of the present invention are all included within the scope of the claims of the present invention.

Claims (27)

1. A connecting terminal is characterized by comprising a body, a plugging part and a connecting part; the inserting part and the connecting part are respectively arranged at two ends of the body; the body comprises a supporting base, and a mounting side wall and a supporting wall which are arranged on two sides of the supporting base;

the body is provided with a primary locking part;

the primary locking part comprises a connecting part and a first blocking part;

the connecting part is arranged on the body;

the first blocking part is arranged on the connecting part and extends reversely along the plugging direction;

the first blocking part is provided with a supporting part which protrudes out of the first blocking part along the transverse direction and extends to the upper part of the mounting side wall or the supporting wall;

the connecting part is provided with a backstop protruding part, and the connecting part and the backstop protruding part are sequentially arranged along the plugging direction of the connecting terminal; the body is provided with a plug part for being electrically connected with a mating terminal, the plug part is provided with a backstop part, and the end part of the backstop part is opposite to the end part of the backstop protruding part;

the backstop protruding portions and the backstop portions are arranged along the inserting direction of the connecting terminals.

2. A connection terminal according to claim 1, characterized in that: the first blocking part is located between the installation side wall and the supporting wall, and the supporting part extends from the first blocking part to cross the inner side surface of the installation side wall or the inner side surface of the supporting wall along the transverse direction.

3. A connection terminal according to claim 1, characterized in that: the supporting parts are arranged on two lateral sides of the first blocking part.

4. The connection terminal according to claim 1, wherein the first barrier portion comprises:

a parallel section disposed parallel to the connection portion;

the inclined section is arranged on the end part of the parallel section and extends along the direction of an obtuse angle with the inserting direction of the connecting terminal;

the inclined section is set to be offset when the connection is stressed, and an included angle between the inclined section and the connection direction of the connection terminal is increased.

5. A connection terminal according to claim 1, characterized in that: the free end of the first blocking part is provided with a protruding platform, and the rear end face of the protruding platform is a blocking face.

6. A connection terminal according to claim 1, characterized in that: the free end of the first blocking part is provided with a blocking surface which is perpendicular to the plugging direction of the connecting terminal.

7. A connection terminal according to claim 1, characterized in that: the connecting part is provided with a first protruding part which is arranged in a protruding mode and extends towards the mounting side wall;

the mounting side wall is provided with a first supporting hole, and the first supporting hole is provided with a blind hole or a through hole from the inner side to the outer side of the mounting side wall;

the first protruding portion is inserted into the first supporting hole to connect the connecting portion with the mounting sidewall.

8. A connection terminal according to claim 7, characterized in that: the first protruding part is in clearance fit with the wall of the first supporting hole.

9. A connection terminal according to claim 7, characterized in that: an inner concave part is arranged at the lower part of the first supporting hole, and the upper part of the inner concave part is contacted with the first protruding part.

10. A connection terminal according to claim 1, characterized in that: the supporting part comprises a bending side arm, the bending side arm is connected with the first blocking part and is positioned on one side of the first blocking part, and the bending side arm is bent towards the direction close to the supporting base.

11. A connection terminal according to claim 10, characterized in that: the supporting wall is provided with a supporting protruding part; the support protruding part extends towards the bending side arm and is opposite to the bending side arm.

12. A connection terminal according to claim 1, characterized in that: the support portion includes a stop protrusion; the stop protrusion is arranged at the free end of the first blocking part and protrudes towards one side of the first blocking part; a stop notch is also formed in the mounting side wall; the detent protrusion extends into the detent notch.

13. A connection terminal according to claim 12, characterized in that: the free end of the first blocking part is provided with a protruding platform; the stop tab upper surface is coplanar with the projection platform upper surface.

14. A connection terminal according to claim 12, characterized in that: the stop notch is formed by a stop hole wall arranged on the mounting side wall; the height of the bottom edge of the stop hole wall is set such that when the bottom edge of the stop hole wall contacts the stop protrusion, the bottom edge of the stop hole wall prevents the first blocking portion from being over-biased.

15. A connection terminal according to claim 1, characterized in that: the supporting part comprises a limiting part; the limiting part is arranged on the first blocking part and protrudes towards the other side of the first blocking part;

the mounting side wall is provided with a limiting hole, and the limiting hole is provided with a through hole or a blind hole from the inner side to the outer side of the mounting side wall;

the limiting part is inserted in the limiting hole;

the limiting hole is used for limiting the moving range of the limiting part so as to limit the variation range of the distance of the first blocking part relative to the base.

16. A connection terminal according to claim 15, characterized in that: the distance from the center of the limiting hole to the free end of the first blocking part in the direction parallel to the supporting base is smaller than that to the setting end.

17. A connection terminal according to claim 16, characterized in that: the limiting hole is formed by a limiting hole wall arranged on the mounting side wall; the front edge of the limiting hole wall is arranged to be contacted with the limiting part on the first blocking part when the first blocking part is stressed to be biased downwards, so that the first blocking part is prevented from being excessively biased.

18. A connection terminal according to claim 1, characterized in that: the connecting terminal further comprises a second blocking part, the second blocking part is arranged on the supporting wall in a protruding mode, the second blocking part and the first blocking part are arranged in sequence along the connecting terminal inserting direction, and the maximum height from the second blocking part to the supporting base is smaller than the height from the free end of the first blocking part to the supporting base.

19. A connection terminal according to claim 18, characterized in that: the second blocking part extends towards the mounting side wall and is provided with a protruding arrangement part;

the mounting side wall is provided with a second supporting hole, and the second supporting hole is provided with a blind hole or a through hole from the inner side to the outer side of the mounting side wall;

the protrusion setting part is configured to be inserted into the second support hole.

20. A connecting terminal according to claim 19, characterized in that: the protruding arrangement part is in clearance fit with the wall of the second support hole.

21. A connecting terminal according to claim 19, characterized in that: the connecting terminal also comprises a third blocking part which is arranged on the supporting base;

the third blocking part, the second blocking part and the first blocking part are sequentially arranged along the plugging direction of the connecting terminal;

the third stop part is right opposite to the rear part of the second stop part, and the projection area of the third stop part on the cross section of the connecting terminal is larger than that of the second stop part.

22. A connecting terminal according to claim 21, characterized in that: the third blocking part extends from the mounting side wall to the supporting wall;

the supporting wall is provided with a limiting notch;

the third blocking part is arranged to be inserted into the limiting notch.

23. A connection terminal according to claim 1, characterized in that: the primary locking part and the installation side wall are provided with a transverse gap, and the transverse gap is uniformly arranged along the plugging direction of the connecting terminals.

24. A connection terminal according to claim 1, characterized in that: the support wall comprises an inclined end face, and the inclined end face is located at the joint of the support wall and the primary locking part and is arranged in a mode of inclining from top to bottom to back.

25. A connection terminal according to any one of claims 1 to 24, characterized in that: the connecting terminal is a single piece.

26. A connecting terminal according to claim 25, characterized in that: the connecting terminal is made of a whole brass plate through stamping.

27. A connecting assembly, characterized in that it comprises a housing and a connecting terminal according to any one of claims 1 to 26, said connecting terminal being arranged in said housing.

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