CN113540857A - Female terminal for connector, male terminal, snap spring for female terminal, and manufacturing method thereof - Google Patents
Female terminal for connector, male terminal, snap spring for female terminal, and manufacturing method thereof Download PDFInfo
- Publication number
- CN113540857A CN113540857A CN202110840969.XA CN202110840969A CN113540857A CN 113540857 A CN113540857 A CN 113540857A CN 202110840969 A CN202110840969 A CN 202110840969A CN 113540857 A CN113540857 A CN 113540857A
- Authority
- CN
- China
- Prior art keywords
- female terminal
- terminal
- spring
- clamp spring
- male terminal
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 14
- 238000003780 insertion Methods 0.000 claims abstract description 25
- 230000037431 insertion Effects 0.000 claims abstract description 25
- 239000004020 conductor Substances 0.000 claims abstract description 8
- 239000000758 substrate Substances 0.000 claims description 9
- 239000000463 material Substances 0.000 claims description 8
- 238000005452 bending Methods 0.000 claims description 7
- 238000005520 cutting process Methods 0.000 claims description 5
- 238000000034 method Methods 0.000 claims description 4
- 238000012545 processing Methods 0.000 claims description 4
- 230000013011 mating Effects 0.000 claims description 2
- 238000013461 design Methods 0.000 description 5
- 244000273256 Phragmites communis Species 0.000 description 4
- 235000014676 Phragmites communis Nutrition 0.000 description 4
- 230000035882 stress Effects 0.000 description 4
- 238000011161 development Methods 0.000 description 3
- 230000018109 developmental process Effects 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 230000007774 longterm Effects 0.000 description 3
- 238000007493 shaping process Methods 0.000 description 3
- 230000004075 alteration Effects 0.000 description 2
- 230000004323 axial length Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000010892 electric spark Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000013021 overheating Methods 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 230000000007 visual effect Effects 0.000 description 2
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000006355 external stress Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 239000004973 liquid crystal related substance Substances 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/02—Contact members
- H01R13/22—Contacts for co-operating by abutting
- H01R13/24—Contacts for co-operating by abutting resilient; resiliently-mounted
- H01R13/2407—Contacts for co-operating by abutting resilient; resiliently-mounted characterized by the resilient means
- H01R13/2414—Contacts for co-operating by abutting resilient; resiliently-mounted characterized by the resilient means conductive elastomers
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/02—Contact members
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/62—Means for facilitating engagement or disengagement of coupling parts or for holding them in engagement
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R43/00—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors
- H01R43/16—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors for manufacturing contact members, e.g. by punching and by bending
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Details Of Connecting Devices For Male And Female Coupling (AREA)
Abstract
The invention provides a female terminal for a connector, a male terminal, a snap spring for the female terminal and a manufacturing method thereof, wherein the female terminal is characterized by comprising the following components: a cylinder made of a conductor and having an insertion opening at a front end thereof into which the male terminal is inserted; and the clamp spring is made of an elastic conductor, axially positioned on the inner wall of the cylinder body, circumferentially contacted with the inner wall of the cylinder body and used for applying radial fastening force to the main body part of the male terminal matched with the female terminal. The female terminal has the advantages of simple structure, low cost, high reliability of connection with the male terminal and capability of bearing large current.
Description
Technical Field
The invention relates to a female terminal for a connector, a male terminal, a snap spring for the female terminal and a manufacturing method thereof.
Background
At present, the power consumption of industrial electrical equipment is getting larger and larger, and the required power supply current of the connector is getting larger and larger. Industrial electrical equipment is often large-sized and expensive because it is less limited in design by space and use conditions. In addition, in functional industrial production, a complete safety disaster prevention system is usually provided, and a relatively perfect processing scheme is provided under the conditions of failure, short circuit, fire and the like of a connector of power supply equipment.
However, with the development of technology, the power consumption of electrical equipment for civil use is also in a trend of large current in specific fields, such as electric vehicles, electric vehicle power stations, and the like. Especially in the rapid charging of electric vehicles, the current required is increasing. Further, such consumer electronics devices have a limited space for installation, and therefore, there is a need for a smaller device. Moreover, such devices are usually installed in public areas with dense population flow, and once the danger of failure, short circuit, fire and the like occurs, the devices cannot be disposed in time, so that loss is enlarged, and the safety of lives and properties of people is endangered.
Disclosure of Invention
In order to solve the problems in the prior art, the invention provides a terminal for a connector, which comprises a female terminal and a male terminal matched with the female terminal.
In some embodiments, a female terminal for a connector according to the present invention includes: a cylinder made of a conductor and having an insertion opening at a front end thereof into which the male terminal is inserted; and the clamp spring is made of an elastic conductor, axially positioned on the inner wall of the cylinder body, circumferentially contacted with the inner wall of the cylinder body and used for applying radial fastening force to the main body part of the male terminal matched with the female terminal.
In some embodiments, it is preferred that the female terminal is characterized by: the clamp spring is cylindrical and is arranged in the cylinder body in a coaxial mode.
In some embodiments, it is preferred that the female terminal is characterized by: the inside diameter of the clamp spring is changed, and the diameters of the two axial ends are larger than the diameter of the middle axial position.
In some embodiments, it is preferred that the female terminal is characterized by: the clamp spring is provided with: a substantially coaxially disposed annular seat portion formed at a front end side and a rear end side; and a plurality of reeds arranged around the axis and extending from the seat part on one side to the seat part on the other side.
In some embodiments, it is preferred that the female terminal is characterized by: at least a part of the plurality of spring pieces is bent toward the axial center side at the extended middle position.
In some embodiments, it is preferred that the female terminal is characterized by: the clamp spring has a cylindrical base material, and a protruding portion facing the inside in the axial direction is formed on a side wall of the cylindrical base material.
In some embodiments, it is preferred that the female terminal is characterized by: the inner wall of the cylinder body is provided with a mounting groove for accommodating the clamp spring.
The female terminal according to the above embodiment has a simple structure and low cost, but has high reliability of connection with the male terminal, and can carry a large current.
In addition, the invention also provides a male terminal matched with the female terminal, which is characterized in that: has a cylindrical body portion inserted into the barrel of the female terminal.
In some embodiments, it is preferred that the male terminal is characterized by: the main body part is provided with a concave part at a position corresponding to the clamp spring in the female terminal in the state of being inserted into the female terminal.
According to the male terminal of the above embodiment, the connection with the female terminal of the present invention is highly reliable, and a large current can be carried.
In addition, the invention also provides a snap spring used by the female terminal, which is characterized in that: the diameter of the two axial ends is larger than that of the middle position in the axial direction.
In some embodiments, the circlip is preferably characterized by: a substantially coaxially disposed annular seat portion formed at a front end side and a rear end side; and a plurality of reeds arranged around the axis and extending from the seat part on one side to the seat part on the other side.
In some embodiments, it is preferable that the circlip is characterized in that at least a part of the plurality of spring pieces is bent toward the axial center side at the extended middle position.
In some embodiments, it is preferable that the snap spring is characterized by having a cylindrical base, and a protrusion portion facing the inside in the axial direction is formed on a side wall of the cylindrical base.
The snap spring according to the above embodiment can be applied to the female terminal of the present invention, and the female terminal has good connection stability and can pass a large current.
In addition, the invention also provides a manufacturing method of the snap spring, which comprises the following steps: processing the sheet substrate at the position of the axial middle part of the clamp spring to form a preset shape, cutting the sheet substrate to form a clamp spring blank, and bending the blank to form a cylindrical clamp spring.
In some embodiments, a method for manufacturing a clamp spring is preferred, and comprises the following steps: the blank is in a strip shape, and is cut off after being bent into a clamp spring to form a single clamp spring.
According to the manufacturing method of the snap spring of the embodiment, the snap spring can be easily processed and manufactured, the snap spring can be well matched with the cylinder body of the female terminal, and the female terminal has good connection stability and can pass large current.
Drawings
Fig. 1 is a structural view of a female terminal according to a first embodiment of the present invention.
Fig. 2 is a sectional view of a female terminal according to a first embodiment of the present invention.
Fig. 3 is an exploded view of the female terminal according to the first embodiment of the present invention.
Fig. 4a is an explanatory diagram of a jump ring manufacturing process in the first embodiment of the present invention.
Fig. 4b is an explanatory diagram of a jump ring manufacturing process in the first embodiment of the present invention.
Fig. 5 is a sectional view showing the combination of the male terminal and the female terminal according to the first embodiment of the present invention.
Fig. 6 is a structural view of a female terminal according to a second embodiment of the present invention.
Fig. 7 is a sectional view of a female terminal according to a second embodiment of the present invention.
Fig. 8 is a sectional view showing the combination of a male terminal and a female terminal according to a second embodiment of the present invention.
Fig. 9 is a structural view for explaining the structure of the insertion window in the second embodiment of the present invention.
Fig. 10 is a structural view for explaining the structure of the insertion window in the second embodiment of the present invention.
Fig. 11 is a structural view of a male terminal in a third embodiment of the present invention.
Fig. 12 is a sectional view showing a state of fitting between a male terminal and a female terminal according to a third embodiment of the present invention.
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings.
[ first embodiment ] to provide a liquid crystal display device
Fig. 1 is a structural view of a female terminal 1 according to a first embodiment of the present invention; fig. 2 is a sectional view of a female terminal according to a first embodiment of the present invention; fig. 3 is an exploded view of the female terminal of the first embodiment of the present invention.
As shown in fig. 1 to 3, the terminal 1 is a female terminal, and includes a cylinder 100 and a snap spring 110 embedded in the cylinder 100. In the present embodiment, the cylindrical body of the terminal 100 is formed as a cylindrical body 100 having an insertion port 102 opened at the tip. A clamp spring 110 is provided in the cylinder 100, and the clamp spring 110 is substantially cylindrical and coaxially disposed in the cylinder 100.
As shown in fig. 3, in the present embodiment, the circlip 110 has a varying inner diameter, the diameters of both ends are substantially the same as the inner diameter of the cylinder 100 at the installation position, and the diameter of the middle portion is smaller than the diameters of both ends. The circlip 110 has an annular seat portion 111 on the front end side and an annular seat portion 112 on the rear end side, and a plurality of spring pieces 113 extending from the seat portion 111 to the seat portion 112 are provided between the seat portions 111, 112. The spring 113 is bent toward the axial center at the middle of the extension, so that the diameter of the middle of the clip 110 is smaller than the diameters of the two ends.
In the present embodiment, the clip 110 may be manufactured by, as shown in fig. 4a, press-cutting an elastic sheet-like base material to form a clip substrate 110 ' having a shape having front and rear lateral edges 111 ', 112 ' to be the seat portions 111, 112 and a plurality of longitudinal ribs 113 ' for forming the spring pieces 113 connecting the front and rear lateral edges 111 ', 112 ', bending and shaping the longitudinal ribs 113 ', and then bending the front and rear lateral edges 111 ', 112 ' into a ring shape to form the seat portions 111, 112. As shown in fig. 4b, the longitudinal ribs 113' are reshaped by bending. Of course, the bending and shaping process for cutting the longitudinal ribs 113 'and 113' may be performed by one-time press forming.
Then, the clip substrate 110' after the shaping is bent into a cylindrical shape so that a plurality of spring pieces 113 as protruding portions facing the inside in the axial direction are formed on the side wall of the cylindrical base material of the clip 110.
After the clip substrate 110 ' is bent into the clip 110, the front and rear lateral edges 111 ', 112 ' enclose the seat portions 111, 112, respectively, in a state where no force is applied. The cylindrical seam may have a gap. The transverse edges 111 ', 112' are overlapped at the joint by the urging force, the diameters of the seat portions 111, 112 of the cylindrical clip spring 110 are reduced, the clip spring 110 is pushed into the insertion port 102 of the cylinder 100 in a state that the diameters are reduced, the urging force to the seat portions 111, 112 is cancelled after the pushing, the diameters of the seat portions 111, 112 are enlarged, the overlapped portion of the transverse edges 111 ', 112' at the joint is restored, and a substantially complete ring shape is formed, so that the clip spring 110 can be stably installed in the cylinder 100.
In the present embodiment, a mounting groove 120 for receiving and fitting the clip spring 110 is formed in the inner wall of the cylinder 100, the mounting groove 120 has a front stopper seat surface 122 located on the insertion port side and a rear stopper seat surface 124 located on the rear side of the cylinder 100, and the axial position of the clip spring 110 in the cylinder 100 is regulated by the front and rear stopper seat surfaces 122, 124. After the clip spring 110 is pushed into the cylinder 110 and reaches the mounting groove 120, the seat portions 111 and 112 of the clip spring 110 are enlarged in diameter, so that the clip spring 110 is stably fitted into the mounting groove 120. In addition, in a state where no axial force is applied to the clip spring 110, the axial length of the clip spring 110 can be made slightly smaller than the axial dimension of the mounting groove 120 by adjusting the length and curvature of the spring piece 113 (the longitudinal rib 113'). Thus, when the male terminal is inserted into the female terminal 1 and the snap spring 110 therein, when the spring sheet 113 is pressed by the male terminal and deformed, the thrust is generated to the seat parts 111 and 112 at both ends, and the distance between the seat parts 111 and 112 at both ends is slightly enlarged, and since the axial length of the snap spring 110 is slightly smaller than the axial dimension of the mounting groove 120 in the state of no force application, the deformation amount of the seat parts 111 and 112 at both ends generated by the pressing deformation of the spring sheet 113 is absorbed, so that the male terminal can be smoothly inserted, an operator can obtain a good insertion hand feeling, and the operator can confirm whether the terminal is connected in place only by the hand feeling without visual observation.
The female terminal according to the present embodiment has a simple structure, is manufactured at low cost, has good connection stability with a male terminal described later, and can particularly meet a long-term large-current operation demand.
The structure of the male terminal corresponding to the female terminal of the present embodiment will be explained below. In the present embodiment, the male terminal 2 has a body 200 inserted into the female terminal 1, the body 200 is formed in a cylindrical shape, and a chamfer is formed at a portion of the tip 201, so that the spring piece 113 of the snap spring 110 can be smoothly pushed outward when the body 200 is inserted into the female terminal 1 and contacts the snap spring 110.
When the body 200 of the male terminal 2 is inserted into the female terminal 1 completely through the spring 113, the body 200 of the male terminal 2 is tightened by the snap spring 110, so that the body 200 is electrically connected to the inner wall of the cylinder 100 of the female terminal 1 through the spring 113 in addition to contacting the inner wall of the cylinder 100 of the female terminal 1. In such a mounted state, the inner wall surface of the cylindrical body 100 of the female terminal 1 can form a larger contact area with the body portion of the male terminal 2, so that the specific resistance of the contact portion between the female terminal 1 and the male terminal 2 is significantly reduced. Furthermore, the main body 200 of the male terminal 2 is tightened by the spring 113, so that the main body 200 can be stably contacted when being inserted into the cylinder 100, thereby ensuring the stability of current when large current passes, avoiding local overheating or electric spark generation due to poor contact, improving the safety performance of the plug connector and the reliability of long-term use, effectively avoiding current impact caused by unstable contact for large-current power supply and power utilization equipment connected with the female terminal 1 and the male terminal 2, reducing the design standard of the power supply and power utilization equipment or obviously improving the design redundancy of the power supply and power utilization equipment, and obviously reducing the development, manufacture and maintenance costs of the power supply and power utilization equipment.
[ second embodiment ]
In the first embodiment, one snap spring 110 is provided in the female terminal 1, and in the present embodiment, two snap springs 110 and 110A are provided in the cylindrical body 100A of the female terminal 1A in order to further improve the stability of the coupling between the female terminal and the male terminal.
Fig. 6 is a structural view of a female terminal according to a second embodiment of the present invention; fig. 7 is a sectional view of a female terminal according to a second embodiment of the present invention; fig. 8 is a sectional view showing the combination of a male terminal and a female terminal according to a second embodiment of the present invention.
In the present embodiment, two snap springs, i.e., the snap spring 110 and the snap spring 110A, are provided in the cylindrical body 100A of the female terminal 1A. Similarly, mounting grooves 120 and 120A are provided on the inner wall of the cylinder 100A corresponding to the two clamp springs 110 and 110A, respectively. The circlip 110 and the mounting groove 120 may be the same in configuration and mounting manner as in the first embodiment, but since the circlip 110A is provided at a position closer to the rear side of the female terminal 1A than the circlip 110, if the mounting manner similar to that of the circlip 110 is used, the circlip 110 may be caught in the mounting groove 120 on the front end side of the cylinder 100A and cannot be mounted further to the rear side. Therefore, in the present embodiment, an insertion window 130A matching the diameter and axial dimension of the snap spring 110A is opened on the side wall of the cylinder 100A at the position of the mounting groove 120A of the cylinder 100A, that is, at the position of the mounting snap spring 110A.
Fig. 9 is a structural view for explaining the structure of the insertion window in the second embodiment of the present invention. Fig. 10 is a structural view for explaining the structure of the insertion window in the second embodiment of the present invention.
As shown in fig. 9 and 10, in the present embodiment, the position of the insertion window 130A is shifted rearward with respect to the mounting groove 120A, that is, both the front edge 132A and the rear edge 134A of the insertion window 130A are shifted to the rear end by a predetermined distance as compared to the front seat surface 122A and the rear seat surface 124A of the mounting groove 120A.
Since the opening position of the fitting window 130A is axially displaced from the mounting groove 120A by a predetermined distance, an annular step groove 136A is formed between the front end side edge 132A of the fitting window 130A and the front side seating surface 122A, and after the clip spring 110A is inserted from the fitting window 130A into the mounting groove 120A, the step groove 136A allows the seating portion 111A at the front end of the clip spring 110A to be seated in the groove 136A, thereby stably mounting the clip spring 110A and effectively preventing the clip spring 110A from being unintentionally removed from the fitting window 130A.
On the other hand, a guide groove 138A extending substantially in the radial direction is formed between the rear side edge 134A of the insertion window 130A and the rear side seating surface 124A. The guide groove 138A can guide the mounting direction of the rear end side seating portion 112A of the snap spring 110A when the snap spring 110A is mounted from the fitting window 130A, and can stabilize the mounting operation of the snap spring 110A and complete the mounting operation quickly and reliably, regardless of whether the snap spring 110A is manually mounted or the snap spring 110A is automatically mounted by a machine.
In this embodiment, the structure of the clamp spring 110A may be the same as that of the clamp spring 110, but the difference is in the mounting manner of the two. The snap spring 110A may be mounted such that the lateral edges 111 ', 112' overlap at the joint, and the diameter of the snap spring 110A is equal to the width between the circumferential edges of the insertion window 130A. In this state, the snap spring 110A is inserted into the insertion window 130A. After the snap spring 110A is inserted into the insertion window 130A, the snap spring 110A is released from its restraint, and expands to fit with the side wall surface of the mounting groove 120A. In order to ensure the stability of the installation of the snap spring 110A, it is only necessary to make the seam of the snap spring 110A face the inside of the insertion window 130A.
The male terminal 2A corresponding to the female terminal 1A configured according to the present embodiment is substantially the same as that of the first embodiment, and is different only in that the cylindrical body 100A may be made longer by providing two snap springs 110, 110A in the cylindrical body 100A of the female terminal 1A, and in this case, it is only necessary to match the length of the male terminal 2A with the length of the inside of the cylindrical body 100A of the female terminal 1A.
According to the present embodiment, when the main body 200A of the male terminal 2A is inserted into the barrel 100A of the female terminal 1A, the main body 200A contacts the snap springs 110 and 110A first and then, so that the hand feeling when the male terminal 2A is inserted changes by the number of times corresponding to the number of the snap springs 110 and 110A, that is, the force is applied by overcoming the resistance of the snap springs 110 and 110A twice, and after the front end of the main body 200A pushes the snap spring 110A by the force applied for the second time, the force required for insertion is greater than the force required for insertion after the snap spring 110 is pushed away for the first time, so that a good insertion hand feeling is formed, and whether the terminal connection is in place can be confirmed only by the hand feeling without visual observation.
Furthermore, according to the present embodiment, when the body portion 200A of the male terminal 2A is inserted into the female terminal 1A completely through the two snap springs 110, 110A, the body portion 200 of the male terminal 2 is pinched by the two snap springs 110, 110A, so that the body portion 200 is conductively connected to the inner wall of the cylinder 100A of the female terminal 1A through the spring pieces 113 of the two snap springs 110, 110A and the seating portions 111, 112 in addition to being in contact with the inner wall of the cylinder 100 of the female terminal 1. In such a mounted state, the inner wall surface of the cylindrical body 100A of the female terminal 1A can form a larger contact area with the body portion of the male terminal 2A, and the connection between the female terminal 1A and the male terminal 2A is made more stable. When a large current passes through the connector, the stability of the current can be ensured, local overheating or electric sparks caused by poor contact can not occur, the safety performance and the long-term use reliability of the connector can be improved, and for a large-current power supply and electric equipment connected with the female terminal 1 and the male terminal 2, current impact caused by unstable contact can be effectively avoided, the design standard of the power supply and electric equipment is reduced or the design redundancy of the power supply and electric equipment is obviously improved, and the development, manufacture and maintenance costs of the power supply and electric equipment can be obviously reduced.
[ third embodiment ]
In the first and second embodiments, the female terminal having a cylindrical structure and the male terminal to be mated therewith have been described, and in order to further improve the stability of the mating between the female terminal and the male terminal, the female terminal 1A of the second embodiment is taken as an example in the present embodiment, and the male terminal 2A to be mated therewith will be described in detail.
Fig. 11 is a sectional view of a male terminal according to a third embodiment of the present invention, and fig. 12 is a sectional view of a state in which the male terminal and the female terminal are fitted to each other according to the third embodiment of the present invention. As shown in fig. 11 and 12, the body 200B of the male terminal 2B in the present embodiment is formed in a cylindrical shape, and recesses 220 and 220A facing the axial direction are formed in the circumferential direction at positions corresponding to the snap springs 110 and 110A in the cylindrical body 100A of the female terminal 1A. In a cross section passing through the axis of the male terminal 2B, the contour shape of the recessed portions 220, 220A matches the curved shape of the spring pieces 113 of the snap springs 110, 110A, and can be engaged with the snap springs 110, 110A.
According to the male terminal 2B of the present embodiment, when it is inserted into the cylindrical body 100A of the female terminal 1A, first, the force of inserting the tip of the body 200B against the resistance of the snap spring 110 in the cylindrical body 110A of the female terminal 1A is increased; then the concave part 220A passes through the clamp spring 110 to form a suction feeling of reduced one-time insertion force; then the recessed part 220A overcomes the resistance of the clamp spring 110 and moves from the clamp spring 110 to the deep part of the cylinder body 100A, and then the front end part of the main body part 200B overcomes the resistance of the clamp spring 110B again, so that the recessed part and the main body part form one or two times of pushing resistance to increase hand feeling and maximize pushing force; finally, the concave part 220A reaches the clamp spring 110A, and the concave part 220 reaches the position of the clamp spring 110, so that a second inhalation feeling with obviously reduced pushing force is formed.
According to the male terminal 2B of the present embodiment, since the recessed portions 220 and 220A are formed in the cylindrical body portion 200B, the hand feeling of the insertion operation changes significantly when the male terminal is inserted into the female terminal 1A, and therefore, it is possible for the user to confirm whether the terminal connection is in place without visually observing it by only the hand feeling.
Furthermore, when the male terminal 2B is pulled out from the female terminal 1A, since the snap springs 110 and 110A are fitted into the recessed portions 220 and 220A, respectively, it is necessary to apply a greater force to overcome the resistance caused by the snap springs 110 and 110A being fitted into the recessed portions 220 and 220A at the time of starting the pulling-out operation than in the second embodiment, so that the pulling-out operation has a good feeling. In addition, compared with the first and second embodiments, when the initial force of the pulling-out operation needs to be limited, the male terminal 2B and the female terminal 1A of the present embodiment are more stably coupled to each other, are less likely to come loose, and have excellent reliability.
According to the present embodiment, since the main body 200B of the male terminal 2B has the recessed portions 220 and 220A provided in correspondence with the snap springs 110 and 110A, the stable contact of the first and second embodiments is provided, and a large current load can be borne, and the pulling-out operation requires a certain force, and the male terminal is particularly suitable for a case where power is supplied to a large-power electric device in a common area by a connection line method.
In general, the connector used in this case needs to ensure the stability of the terminal connection, and as described in this embodiment, by providing the main body 200B of the male terminal 2B with the recessed portions 220 and 220A corresponding to the snap springs 110 and 110A, the stability of the connection between the male terminal 2B and the female terminal 1A can be further improved, and the lead can be prevented from being loosened due to accidental stress.
And because at the initial moment of pulling out the male terminal 2B, it is necessary to additionally apply a larger force to the male terminal 2B, and once the matching between the recessed parts 220, 220A and the snap springs 110, 110A is released, the sliding resistance is relatively small, so that after the lead is accidentally stressed and loosened, once the snap springs 110, 110A are disengaged from the recessed parts 220, 220A, the force required for pulling out is remarkably reduced, therefore, when the external stress is loosened, the male terminal can be completely loosened after the accidental force reaches a certain degree, and can be completely cut off. On one hand, the lead of the connecting terminal can be prevented from being torn off because the terminal is not broken when the accidental stress is overlarge, so that the danger caused by the breakage/exposure of a power supply line is avoided; on the other hand, after the accidental stress reaches the specified size, the male terminal and the female terminal can be disconnected rapidly and completely, so that the danger of ignition or heating caused by poor contact or reduction of the overflowing area due to partial separation of the terminals caused by the stress is avoided.
The female terminal and the male terminal to be mated with the female terminal according to the present invention have been described in detail in the above. However, the present invention is not limited to the embodiments described in the above embodiments, and the applicable scope of the present invention extends to the embodiments in which each of the above embodiments and a part or all of them are arbitrarily combined, or to the embodiments from which a part is extracted, and a person skilled in the art can make various modifications, alterations, and substitutions on the above embodiments and a part thereof based on the description of the present application, and the modifications, alterations, and substitutions also belong to the scope of protection described in the claims of the present application.
Specifically, the female terminal for a connector according to claim 1 of the present invention includes:
a cylinder made of a conductor and having an insertion opening at a front end thereof into which the male terminal is inserted; and
the clamp spring is made of an elastic conductor, axially positioned on the inner wall of the cylinder body, circumferentially contacted with the inner wall of the cylinder body and used for exerting radial fastening force on the main body part of the male terminal matched with the female terminal.
The female terminal according to claim 1, characterized in that:
the clamp spring is cylindrical and is arranged in the cylinder body in a coaxial mode.
Furthermore, the inner diameter of the clamp spring is changed, and the diameters of the two axial ends are larger than the diameter of the middle axial position.
Furthermore, the circlip has: a substantially coaxially disposed annular seat portion formed at a front end side and a rear end side; and a plurality of reeds arranged around the axis and extending from the seat part on one side to the seat part on the other side.
Further, at least a part of the plurality of spring pieces is bent toward the axial center side at the extended middle position.
Further, the female terminal according to claim 1 above, wherein: the clamp spring has a cylindrical base material, and a protruding portion facing the inside in the axial direction is formed on a side wall of the cylindrical base material.
Further, the female terminal according to claim 1 above, wherein: the inner wall of the cylinder body is provided with a mounting groove for accommodating the clamp spring.
A male terminal according to claim 2 of the present invention to be mated with the female terminal according to claim 1 is characterized in that: has a cylindrical body portion inserted into the barrel of the female terminal.
Furthermore, the main body part is provided with a concave part at a position corresponding to the clamp spring in the female terminal in a state of being inserted into the female terminal.
The present invention also provides a circlip for the female terminal of claim 1, wherein: the diameter of the two axial ends is larger than that of the middle position in the axial direction.
A substantially coaxially disposed annular seat portion formed on the front end side and the rear end side; and a plurality of reeds arranged around the axis and extending from the seat part on one side to the seat part on the other side.
Further, at least a part of the plurality of spring pieces is bent toward the axial center side at the extended middle position.
Further, a protrusion portion facing the inside in the axial direction is formed on the cylindrical side wall.
In addition, the method for manufacturing the circlip of the 4 th aspect of the invention includes: processing the sheet substrate at the position of the axial middle part of the clamp spring to form a preset shape, cutting the sheet substrate to form a clamp spring blank, and bending the blank to form a cylindrical clamp spring.
And then, the blank is in a strip shape, and is cut off after being bent into clamp springs to form a single clamp spring.
Claims (15)
1. A female terminal for a connector, comprising:
a cylinder made of a conductor and having an insertion opening at a front end thereof into which the male terminal is inserted; and
the clamp spring is made of an elastic conductor, axially positioned on the inner wall of the cylinder body, circumferentially contacted with the inner wall of the cylinder body and used for exerting radial fastening force on the main body part of the male terminal matched with the female terminal.
2. The female terminal of claim 1, wherein:
the clamp spring is cylindrical and is arranged in the cylinder body in a coaxial mode.
3. The female terminal of claim 2, wherein:
the inside diameter of the clamp spring is changed, and the diameters of the two axial ends are larger than the diameter of the middle axial position.
4. The female terminal of claim 3,
the clamp spring is provided with:
a substantially coaxially disposed annular seat portion formed at a front end side and a rear end side; and
a plurality of spring pieces extending from the seat portion on one side to the seat portion on the other side are provided around the axis.
5. The female terminal of claim 4, wherein:
at least a part of the plurality of spring pieces is bent toward the axial center side at the extended middle position.
6. The female terminal of claim 1, wherein:
the clamp spring has a cylindrical base material, and a protruding portion facing the inside in the axial direction is formed on a side wall of the cylindrical base material.
7. The female terminal of claim 1, wherein:
the inner wall of the cylinder body is provided with a mounting groove for accommodating the clamp spring.
8. A male terminal for mating with the female terminal of claim 1, wherein:
has a cylindrical body portion inserted into the barrel of the female terminal.
9. The male terminal of claim 8, wherein:
the main body part is provided with a concave part at a position corresponding to the clamp spring in the female terminal in the state of being inserted into the female terminal.
10. A circlip for use with the female terminal of claim 1, wherein:
the diameter of the two axial ends is larger than that of the middle position in the axial direction.
11. The circlip of claim 10 having:
a substantially coaxially disposed annular seat portion formed at a front end side and a rear end side; and
a plurality of spring pieces extending from the seat portion on one side to the seat portion on the other side are provided around the axis.
12. The circlip of claim 11 wherein:
at least a part of the plurality of spring pieces is bent toward the axial center side at the extended middle position.
13. The circlip of claim 10 wherein:
the cylindrical side wall is formed with a projection portion facing axially inward.
14. A method of manufacturing a circlip as claimed in claim 10 comprising:
processing a sheet-shaped substrate to form a preset shape at the position of the axial middle part of the clamp spring,
cutting the sheet-shaped substrate to form a clamp spring blank,
and bending the blank to form a cylindrical clamp spring.
15. The method for manufacturing the jump ring of claim 14, comprising:
the blank is in a strip shape, and is cut off after being bent into a clamp spring to form a single clamp spring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110840969.XA CN113540857B (en) | 2021-07-23 | 2021-07-23 | Female terminal for connector, male terminal, snap spring for female terminal, and method for manufacturing snap spring for female terminal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110840969.XA CN113540857B (en) | 2021-07-23 | 2021-07-23 | Female terminal for connector, male terminal, snap spring for female terminal, and method for manufacturing snap spring for female terminal |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113540857A true CN113540857A (en) | 2021-10-22 |
| CN113540857B CN113540857B (en) | 2023-12-12 |
Family
ID=78088898
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110840969.XA Active CN113540857B (en) | 2021-07-23 | 2021-07-23 | Female terminal for connector, male terminal, snap spring for female terminal, and method for manufacturing snap spring for female terminal |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113540857B (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202405473U (en) * | 2012-01-13 | 2012-08-29 | 东莞中探探针有限公司 | Crown spring and crown spring connector |
| CN205583202U (en) * | 2016-05-11 | 2016-09-14 | 慈溪恒煜电子有限公司 | Pure electric vehicles fills electrically conductive connector of diclinic hat spring of discharge connecting ware |
| CN106532315A (en) * | 2016-10-28 | 2017-03-22 | 苏州可奈特电子科技有限公司 | Large-current reed and production process thereof |
| CN206259522U (en) * | 2016-11-21 | 2017-06-16 | 深圳龙友科技股份有限公司 | female connecting terminal and electric connector |
| TWM563680U (en) * | 2018-04-13 | 2018-07-11 | 香港商信音科技（香港）有限公司 | Electrical connector |
| CN208315832U (en) * | 2018-04-11 | 2019-01-01 | 苏州信音汽车电子有限公司 | Electric connector |
| CN208352572U (en) * | 2018-07-26 | 2019-01-08 | 上海挚行电子科技有限公司 | A kind of electric connector |
| CN209029566U (en) * | 2018-11-28 | 2019-06-25 | 绵阳市华永盛科技有限公司 | A kind of hat spring contact connectio pair |
| CN109994883A (en) * | 2019-04-30 | 2019-07-09 | 中兵航联科技股份有限公司 | A kind of circlip type self-locking anti-loosing electric connector |
-
2021
- 2021-07-23 CN CN202110840969.XA patent/CN113540857B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202405473U (en) * | 2012-01-13 | 2012-08-29 | 东莞中探探针有限公司 | Crown spring and crown spring connector |
| CN205583202U (en) * | 2016-05-11 | 2016-09-14 | 慈溪恒煜电子有限公司 | Pure electric vehicles fills electrically conductive connector of diclinic hat spring of discharge connecting ware |
| CN106532315A (en) * | 2016-10-28 | 2017-03-22 | 苏州可奈特电子科技有限公司 | Large-current reed and production process thereof |
| CN206259522U (en) * | 2016-11-21 | 2017-06-16 | 深圳龙友科技股份有限公司 | female connecting terminal and electric connector |
| CN208315832U (en) * | 2018-04-11 | 2019-01-01 | 苏州信音汽车电子有限公司 | Electric connector |
| TWM563680U (en) * | 2018-04-13 | 2018-07-11 | 香港商信音科技（香港）有限公司 | Electrical connector |
| CN208352572U (en) * | 2018-07-26 | 2019-01-08 | 上海挚行电子科技有限公司 | A kind of electric connector |
| CN209029566U (en) * | 2018-11-28 | 2019-06-25 | 绵阳市华永盛科技有限公司 | A kind of hat spring contact connectio pair |
| CN109994883A (en) * | 2019-04-30 | 2019-07-09 | 中兵航联科技股份有限公司 | A kind of circlip type self-locking anti-loosing electric connector |
Also Published As
| Publication number | Publication date |
|---|---|
| CN113540857B (en) | 2023-12-12 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CA2691026C (en) | Single-pole electrical connector having a steel retaining spring | |
| JP2019525438A (en) | Crash rib housing for positive lock receptacle | |
| KR100338871B1 (en) | Positive Locking Insulated Connectors | |
| EP2186168A2 (en) | Connector with redundant terminal locking | |
| EP0616388B1 (en) | Connector terminal | |
| US5135417A (en) | Dual usage electrical/electronic pin terminal system | |
| US20210351539A1 (en) | Male connector and connector device | |
| CN215266782U (en) | Female terminal and male terminal for connector | |
| CN215266758U (en) | Female terminal and male terminal for connector | |
| US8858261B2 (en) | Device for electrically connecting a cable, in particular a plug-in connector part having a shielded contact element | |
| CN111370904B (en) | Socket end connecting structure of electric connecting device | |
| CN113540857A (en) | Female terminal for connector, male terminal, snap spring for female terminal, and manufacturing method thereof | |
| CN113571942B (en) | Female terminal for connector, male terminal, and method for manufacturing female terminal | |
| US20240063566A1 (en) | Terminal unit | |
| KR102088899B1 (en) | Connector | |
| CN111092320A (en) | Connector and jack contact element thereof | |
| CN108075271B (en) | High-energy electric connector | |
| CN111200223A (en) | A kind of interface unit | |
| KR102088898B1 (en) | Connector | |
| JPH10172663A (en) | Connector | |
| KR102088900B1 (en) | Connector | |
| US20240136768A1 (en) | Connector mating structure | |
| US20220294142A1 (en) | Female terminal | |
| US20240356261A1 (en) | Terminal unit and first terminal | |
| KR101931695B1 (en) | Cable connection structure of connector using cap jack |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |