CN211045803U - Spring fork assembly - Google Patents

Abstract

The utility model discloses a fork assembly, which comprises a male terminal, a staggered stacked elastic piece assembly, a switching terminal and an elastic piece connecting piece; the staggered and superposed elastic piece assembly is composed of a plurality of single-piece spring forks, the single-piece spring forks are H-shaped in appearance and comprise four contact line ends, the end part of each contact line end is provided with a spring fork contact, and the spring fork contacts adopt a round corner design in smooth transition; the two ends of the staggered and superposed elastic piece assembly are respectively an electricity inlet end and an electricity outlet end, a plurality of single-piece elastic forks are connected through an elastic piece connecting piece after being arranged side by side according to a certain rule, and elastic fork contacts at the same end of two adjacent single-piece elastic forks are staggered mutually. The utility model discloses a bullet fork subassembly both can make up the bullet fork subassembly that is used for the undercurrent also can be used for the heavy current connector, applicable in new forms of energy electric automobile's connector for whole car system, not only processing equipment is simple, has reliable connection performance moreover.

Description

Spring fork assembly

Technical Field

The utility model relates to a new energy source connector technical field, in particular to bullet fork subassembly.

Background

The evolution and development of automobiles are clear and recognizable, and since the beginning of the twentieth century, the innovation and the progress of automobile development history are numerous, so that the connection technology of automobiles is quite mature and outstanding, and the progress always centers on the power and the performance of an engine, the safety, the convenience in a driving space, the driving quality, a fuel source, vehicle-mounted data relay, in-vehicle entertainment and the like. The constant updating of these data from the connector also requires that the high voltage terminals and connectors ensure the safety, stability and reliability of data transfer and power transmission between the battery and other voltage devices. This requirement for current transfer requires the accommodation of many contact points to increase the current capacity of the circuit. In addition, the environment in which the vehicle is used is becoming more and more severe, and the standard requirements for connectors are becoming higher and higher, and the connectors are subject to vibration and abrasion over time. The spring cantilever structure of the terminal may fail, thereby reducing the stability of the entire vehicle system. There is a need for a flexible insertion and extraction force that requires reliable contact surfaces, quantity or positive pressure contact.

SUMMERY OF THE UTILITY MODEL

The utility model aims at overcoming not enough among the above-mentioned background art, providing a bullet fork subassembly, both can make up the bullet fork subassembly that is used for the undercurrent also can be used for the heavy current connector, applicable in new forms of energy electric automobile's whole car connector for system, not only processing equipment is simple, has reliable connection performance moreover.

In order to achieve the technical effect, the utility model discloses take following technical scheme:

a bullet fork assembly comprises a male terminal, a staggered and superposed elastic piece assembly, a switching terminal and an elastic piece connecting piece; the staggered and superposed elastic sheet assembly is composed of a plurality of single-sheet spring forks, the single-sheet spring forks are H-shaped in appearance and comprise four contact line ends, the end part of each contact line end is provided with a spring fork contact, two spring fork contacts positioned at the same end of the single-sheet spring forks are oppositely arranged, and the spring fork contacts adopt a round corner design in smooth transition; the two ends of the staggered and superposed elastic sheet assembly are respectively an electricity inlet end inserted with the male terminal and an electricity outlet end inserted with the switching terminal, a plurality of single-sheet elastic forks are connected through an elastic sheet connecting piece after being arranged side by side according to a certain rule, and elastic fork contacts at the same end of two adjacent single-sheet elastic forks are staggered with each other; the staggered elastic fork contacts can avoid the contact failure of the contact contacts and corresponding terminals caused by resonance generated in high-speed and other severe vibration environments and long-time operation working environments, so that the short-time instant disconnection condition is generated; secondly, the positive pressure of contact can be reduced, so that plugging and unplugging are softer;

when in use, current is introduced from the male terminal, the male terminal is inserted at the power inlet end of the dislocation superposition type elastic sheet component, and the current flows through the dislocation superposition type elastic sheet component and then flows out from the switching terminal inserted at the power outlet end of the dislocation superposition type elastic sheet component, in specific application, the number of the single sheet spring forks superposed by the dislocation superposition type elastic sheet component can be set according to the magnitude of the current flowing, the more the superposed single sheet spring forks are, the larger the overcurrent capacity of the superposition type elastic sheet component is, and the smaller the overcurrent capacity is, otherwise, so that different current grade conditions can be met by adjusting the number of the superposed single sheet spring forks, meanwhile, in the elastic fork component of the utility model, a plurality of staggered elastic contact points (namely elastic fork contact points) are arranged at the power inlet end and the power outlet end of the dislocation superposition type elastic sheet component, and form a plugging port to be respectively plugged with the male terminal and the switching terminal, thereby not only realizing flexible contact, the insertion and extraction force is reduced, and even under severe vibration conditions, instantaneous disconnection caused by contact failure due to resonance generated by the elastic contact points can be avoided, so that the connection stability and safety can be guaranteed.

Furthermore, four contact terminals of the single-piece elastic fork are connected through the main board, the four contact terminals are respectively an upper left elastic fork, an upper right elastic fork, a lower right elastic fork and a lower left elastic fork from a first contact terminal on the left side of the main board in the clockwise direction, a socket between the upper left elastic fork and the lower left elastic fork forms a slot at the left end of the single-piece elastic fork, and a socket between the upper right elastic fork and the lower right elastic fork forms a slot at the right end of the single-piece elastic fork.

Furthermore, the left upper elastic fork and the right upper elastic fork are the same in length, the right lower elastic fork and the left lower elastic fork are the same in length, the left upper elastic fork and the left lower elastic fork are different in length, and the staggered stacked elastic piece assembly is formed by stacking a plurality of single elastic forks in a positive and negative overlapping mode.

Furthermore, the left upper bullet fork and the left lower bullet fork are the same in length, the right upper bullet fork and the right lower bullet fork are the same in length, the left upper bullet fork and the right upper bullet fork are different in length, and the staggered stacked type elastic piece assembly is formed by stacking a plurality of single-piece bullet forks in a positive and negative overlapping mode.

Further, the single-piece bullet fork is divided into a first single-piece bullet fork and a second single-piece bullet fork, the lengths of an upper left bullet fork, an upper right bullet fork, a lower right bullet fork and a lower left bullet fork of the first single-piece bullet fork are the same, the length of the upper left bullet fork and the length of the lower left bullet fork of the second single-piece bullet fork are the same, the length of the upper right bullet fork and the length of the lower right bullet fork are the same, the length of the upper left bullet fork and the length of the upper right bullet fork are different, or the length of the upper left bullet fork and the length of the upper right bullet fork of the second single-piece bullet fork are the same, the length of the lower right bullet fork and the length of the lower left bullet fork are different, the staggered type elastic piece assembly is formed by stacking the first single-piece bullet fork and the second single-piece bullet fork at intervals, and a second single-piece bullet fork is arranged between two adjacent single-.

Furthermore, the elastic sheet connecting piece is a pin shaft, a pin hole matched with the pin shaft is formed in the main board of the single-piece elastic fork, the pin shaft is inserted into the pin holes of the single-piece elastic forks which are arranged in parallel, the single-piece elastic forks can be connected, each single-piece elastic fork can have proper size tolerance through the connection mode of the pin shaft and the pin hole, and then the male terminal can meet the use requirement in the tolerance after being inserted, and better operation comfort is also achieved.

Furthermore, the shell fragment connecting piece is the connecting plate be equipped with a plurality of buckles on the connecting plate side by side, the upper and lower side of monolithic bullet fork all be equipped with complex draw-in groove, a plurality of monolithic bullet forks joint between two connecting plates, through pegging graft a plurality of monolithic bullet forks with the connecting plate respectively promptly, finally realize the range side by side of a plurality of monolithic bullet forks, adopt the mode of being connected through the buckle draw-in groove between connecting plate and the monolithic bullet fork, make every monolithic bullet fork respectively with the connecting plate cooperation, can restrict monolithic bullet fork and rotate in certain degree of winding within range.

Furthermore, the bullet fork contact adopts the technology shaping of bending, just the monolithic bullet fork adopts the punching press technology shaping, and the bullet fork contact of this scheme is located the non-blanking face of monolithic bullet fork, directly adopts the technology shaping of bending to go out the rounding off slick and sly fillet of transition, can make more soft when inserting with corresponding terminal, and monolithic bullet fork adopts the punching press technology shaping then to be favorable to further ensuring the uniformity of part size, and production efficiency is high.

Furthermore, the end face of the end, inserted into the staggered stacked elastic sheet assembly, of the switching terminal is wavy, and under the condition that the positive pressure of the single-sheet elastic fork is constant, the time sequence of the switching terminal matched with the staggered stacked elastic sheet assembly and the single-sheet elastic fork in contact can be changed, so that the number of contact effective sheets in the insertion process is reduced, the resultant force of the positive pressure is changed, and the flexible plugging and unplugging of the staggered stacked elastic sheet assembly are further guaranteed.

Further, still be connected with the cable on the switching terminal, the cable is crimping or welding with the switching terminal, also can select for use other suitable cable connected modes in the reality, can select for use according to particular case, and the switching terminal can satisfy the mode of being qualified for the next round of competitions of different angles, has satisfied new forms of energy electric automobile to the compact demand of different whole car space layouts.

Compared with the prior art, the utility model, following beneficial effect has:

the utility model discloses a bullet fork subassembly can realize disposing different electric currents through the quantity of the monolithic bullet fork of adjustment stack to satisfy the different electric current service environment of whole car system, realize the modularization configuration, make things convenient for the unity of later stage material;

meanwhile, each single-piece bullet fork of the bullet fork assembly is provided with four contact points, and a plurality of single-piece bullet forks are arranged in parallel to form line contact, so that the contact reliability can be guaranteed; just the utility model discloses a dislocation stack formula shell fragment subassembly and public end terminal, the contact point of the contact jaw of switching terminal is the dislocation overlap, can effectively avoid producing resonance when long-time operation, the advantage that anti-vibration intensity is high has, and simultaneously, its bullet fork contact adopts rounding off's fillet design, can effectively promote the soft degree when inserting, and its switching terminal can satisfy the mode of being qualified for the next round of competitions of different angles, the demand that new forms of energy electric automobile is compact to different whole car spatial layout has, can make up different electric current size, the plug is soft, anti-vibration intensity is high, the advantage that manufacturability is high, and it is applicable in automatic assembly, and the assembly efficiency is improved.

Drawings

Fig. 1 is a schematic view of a fork assembly according to an embodiment of the present invention.

Fig. 2 is a schematic view of a staggered stacked spring assembly according to an embodiment of the present invention.

Fig. 3 is a schematic view of a single-piece fork constituting the staggered stacked spring assembly of fig. 2.

Fig. 4 is a schematic view of a staggered stacked spring assembly according to an embodiment of the present invention.

Fig. 5 is a schematic view of a single-piece fork constituting the offset stack-up spring assembly of fig. 4.

Fig. 6 is a schematic view of a single piece fork according to an embodiment of the present invention.

Fig. 7 is a schematic view of a staggered stacked spring assembly according to an embodiment of the present invention.

Fig. 8 is a schematic view of a single-piece fork comprising the staggered stacked spring assembly of fig. 7.

Fig. 9 is a schematic view of a single-piece fork comprising the staggered stacked spring assembly of fig. 7.

Reference numerals: 1-male end terminal, 2-staggered stacked spring plate assembly, 3-switching terminal, 4-spring plate connector, 5-single plate spring fork, 51-upper left spring fork, 52-upper right spring fork, 53-lower right spring fork, 54-lower left spring fork, 55-main plate, 56-spring fork contact, 57-pin hole, 58-card slot, 501-first single plate spring fork and 502-second single plate spring fork.

Detailed Description

The present invention will be further illustrated and described with reference to the following examples.

Example (b):

the first embodiment is as follows:

as shown in fig. 1, a fork assembly includes a male terminal 1, a staggered stacked elastic sheet assembly 2, a switching terminal 3 and an elastic sheet connector 4.

Specifically, as shown in fig. 2 and 3, the staggered stacked spring plate assembly 2 is composed of a plurality of single spring forks 5, the single spring forks 5 are H-shaped and comprise four contact terminals, the end of each contact terminal is provided with a spring fork contact 56, two spring fork contacts 56 located at the same end of the single spring fork 5 are arranged oppositely, and the spring fork contacts 56 are designed in round corners with smooth transitions.

The two ends of the staggered and overlapped type elastic piece component 2 are respectively an electricity inlet end inserted with the male terminal 1 and an electricity outlet end inserted with the switching terminal 3, a plurality of single-piece elastic forks 5 are connected through the elastic piece connecting piece 4 after being arranged side by side according to a certain rule, and the elastic fork contacts 56 at the same end of two adjacent single-piece elastic forks 5 are staggered with each other. In this embodiment, the staggered fork contacts 56 have the following beneficial effects: firstly, the situation that the contact failure of a contact and a corresponding terminal is caused by the resonance generated by a fork assembly in harsh vibration environments such as high speed and the like and long-time operation working environments can be avoided, so that short-time instantaneous interruption occurs; and secondly, the positive pressure of contact can be reduced, so that plugging and unplugging are softer.

Specifically, in the present embodiment, as shown in fig. 3, the four contact ends of the single-piece fork 5 are connected by the main plate 55 (the main plate 55 and the four contact lines are integrally formed), and the four contact ends are the upper left fork 51, the upper right fork 52, the lower right fork 53 and the lower left fork 54, respectively, in the clockwise direction from the first contact end on the left side of the main plate 55, the insertion opening between the upper left fork 51 and the lower left fork 54 constitutes the insertion opening on the left end of the single-piece fork 5, and the insertion opening between the upper right fork 52 and the lower right fork 53 constitutes the insertion opening on the right end of the single-piece fork 5. Wherein, the left side is gone up the bullet fork 51 and is the same with left side bullet fork 54 length, and the right side is gone up the bullet fork 52 and is the same with right side bullet fork 53 length, and left side is gone up the bullet fork 51 and is gone up bullet fork 52 length difference with the right side, and specifically is that the length of left side is gone up the bullet fork 51 and is less than right side and goes up bullet fork 52 length, and dislocation stack formula shell fragment subassembly 2 is formed by stacking according to the positive and negative mode of overlapping by a plurality of monolithic bullet forks 5.

Meanwhile, in this embodiment, the elastic sheet connecting member 4 is a pin, a pin hole 57 matched with the pin is formed in the main board 55 of the single-piece fork 5, the pin is inserted into the pin holes 57 of the single-piece forks 5 arranged in parallel, so that the single-piece forks 5 can be connected, and each single-piece fork 5 can have a proper size tolerance by the connection mode of the pin and the pin hole 57, so that the male terminal 1 can meet the use requirement in the tolerance after being inserted, and has better operation comfort.

Specifically, the bullet fork contact 56 adopts the bending process to form, and monolithic bullet fork 5 adopts the stamping process to form, and bullet fork contact 56 in this embodiment locates the non-blanking face of monolithic bullet fork 5, directly adopts the bending process to form a round corner of transition rounding off, can make softer when inserting with corresponding terminal, monolithic bullet fork 5 adopts the stamping process to form then to be favorable to further ensuring the uniformity of part size, and production efficiency is high.

Preferably, in this embodiment, the single fork 5 is made of a copper material with high conductivity, and the single fork 5 is inserted and pulled for multiple times to analyze that the material itself is not yielding, and still can achieve a better contact resistance.

Preferably, the end face of the end of the adapting terminal 3 inserted into the staggered stacked elastic sheet component 2 is wavy, and under the condition that the positive pressure of the single elastic sheet fork 5 is constant, the time sequence of the adapting terminal 3 matched with the staggered stacked elastic sheet component 2 and the single elastic sheet fork 5 can be changed, so that the number of effective contact sheets in the inserting process is reduced, the resultant force of the positive pressure is changed, and the flexible insertion and extraction with the staggered stacked elastic sheet component 2 are further ensured.

In practice, still be connected with the cable on the switching terminal 3, the cable also can choose other suitable cable connected modes for use for crimping or welding with switching terminal 3 in the reality, can choose for use according to particular case, and switching terminal 3 can satisfy the mode of being qualified for the next round of competitions of different angles, can satisfy new forms of energy electric automobile to the compact demand of different whole car space layouts.

When in use, current is introduced from the male terminal 1, the male terminal 1 is inserted into the power inlet end of the staggered stacked spring plate assembly 2, and the current flows through the staggered stacked spring plate assembly 2 and then flows out from the switching terminal 3 inserted into the power outlet end of the staggered stacked spring plate assembly 2 and a cable connected with the switching terminal, in specific application, the number of the single spring forks 5 stacked by the staggered stacked spring plate assembly 2 can be set according to the magnitude of the current flowing, the more the stacked single spring forks 5 are, the larger the overcurrent capacity of the stacked spring plate assembly is, otherwise, the smaller the overcurrent capacity is, therefore, different current grade conditions can be met by adjusting the number of the stacked single spring forks 5, meanwhile, in the spring fork assembly of the embodiment, a plurality of staggered elastic contact points (namely spring fork contacts 56) are arranged at the power inlet end and the power outlet end of the staggered stacked spring plate assembly 2, and form a plugging port to be respectively plugged with the male terminal 1 and the switching terminal 3, not only can realize flexible contact and reduce the insertion and extraction force, but also can avoid instantaneous disconnection caused by contact failure due to resonance generated by an elastic contact point even under the harsh vibration condition, and can ensure the connection stability and safety.

Example two

The utility model provides a bullet fork subassembly, including public end terminal 1, dislocation stack formula shell fragment subassembly 2, switching terminal 3 and shell fragment connecting piece 4, as shown in fig. 4, the dislocation stack formula shell fragment subassembly 2 of this embodiment comprises the monolithic bullet fork 5 of another kind of form, the bullet fork subassembly of this embodiment is different in the form that constitutes the monolithic bullet fork 5 of dislocation stack formula shell fragment subassembly 2 with the bullet fork subassembly of embodiment one promptly, specifically the length setting of four contact terminals is different, specifically, as shown in fig. 5, the left upper bullet fork 51 of monolithic bullet fork 5 of this embodiment is the same with the upper right bullet fork 52 length, the lower right bullet fork 53 is the same with lower left bullet fork 54 length, upper left bullet fork 51 is different with lower left bullet fork 54 length, dislocation stack formula shell fragment subassembly 2 is formed by stacking according to the positive and negative overlapping mode by a plurality of monolithic bullet fork 5.

As another extension, in practice, the lengths of the four contact ends of the single-piece fork 5 may be set such that the left upper fork 51 and the right upper fork 52 have different lengths, the left upper fork 51 and the right lower fork 53 have the same length, and the right upper fork 52 and the left lower fork 54 have the same length. It should be noted that there are various specific setting forms, which are not described in detail herein, and corresponding transformation can be performed according to the central idea of the present disclosure in specific application.

As shown in fig. 6, as another derivative form of the single-piece fork 5, in practice, still can all set up corresponding draw-in groove 58 at the upper and lower side of single-piece fork 5, then at this moment, shell fragment connecting piece 4 is the connecting plate, specifically can set up a plurality of buckles with draw-in groove 58 complex on the connecting plate side by side, then a plurality of single-piece forks 5 joint between two connecting plates, through pegging graft a plurality of single-piece forks 5 respectively with the connecting plate promptly, finally realize the side by side arrangement of a plurality of single-piece forks 5, adopt the mode of being connected through buckle draw-in groove 58 between connecting plate and the single-piece fork 5, make every single-piece fork 5 cooperate with the connecting plate respectively, can restrict single-piece fork 5 and rotate within certain degree of winding.

EXAMPLE III

A fork assembly, comprising a male terminal 1, a staggered stacked spring assembly 2, a through terminal 3 and a spring connector 4, as shown in fig. 7, the staggered stacked spring assembly 2 of the present embodiment is formed by stacking another two types of single fork, i.e. the difference between the fork assembly of the present embodiment and the fork assembly of the first embodiment is that the form of the single fork forming the staggered stacked spring assembly 2 is different, specifically, the staggered stacked spring assembly 2 of the present embodiment is formed by stacking two types of single fork at intervals, for convenience of illustration and distinction, in the present embodiment, the two types of single fork are respectively named as a first single fork 501 and a second single fork 502, wherein, as shown in fig. 9, the lengths of an upper left fork 51, an upper right fork 52, a lower right fork 53 and a lower left fork 54 of the second single fork 502 are the same, as shown in fig. 8, the upper left fork 51 and the lower fork 54 of the first single fork 501 are the same, the upper right fork 52 and the lower right fork 53 have the same length, the upper left fork 51 and the upper right fork 52 have different lengths, specifically, the length of the upper right fork 52 is greater than that of the upper left fork 51, and in practice, the upper left fork 51 and the upper right fork 52 may be deformed into the same length, the lower right fork 53 and the lower left fork 54 have the same length, and the upper left fork 51 and the lower left fork 54 have different lengths. The staggered stacked elastic piece assembly 2 of the present embodiment is formed by stacking the two single-piece elastic forks at intervals.

It is to be understood that the above embodiments are merely exemplary embodiments that have been employed to illustrate the principles of the present invention, and that the present invention is not limited thereto. It will be apparent to those skilled in the art that various modifications and improvements can be made without departing from the spirit and substance of the invention, and these modifications and improvements are also considered to be within the scope of the invention.

Claims (10)

1. A fork assembly is characterized by comprising a male terminal, a staggered and superposed elastic piece assembly, a switching terminal and an elastic piece connecting piece;

the staggered and superposed elastic sheet assembly is composed of a plurality of single-sheet spring forks, the single-sheet spring forks are H-shaped in appearance and comprise four contact line ends, the end part of each contact line end is provided with a spring fork contact, two spring fork contacts positioned at the same end of the single-sheet spring forks are oppositely arranged, and the spring fork contacts adopt a round corner design in smooth transition;

the two ends of the staggered and superposed elastic sheet assembly are respectively an electricity inlet end inserted with the male end terminal and an electricity outlet end inserted with the switching terminal, a plurality of single-sheet elastic forks are connected through an elastic sheet connecting piece after being arranged side by side according to a certain rule, and elastic fork contacts at the same end of two adjacent single-sheet elastic forks are staggered with each other.

2. The fork assembly of claim 1, wherein the four contact ends of the single piece fork are connected by the main plate, and the four contact ends are an upper left fork, an upper right fork, a lower right fork and a lower left fork, respectively, in a clockwise direction from the first contact end on the left side of the main plate.

3. The assembly of claim 2, wherein the upper left fork is the same length as the upper right fork, the lower right fork is the same length as the lower left fork, the upper left fork is different length from the lower left fork, and the stacked spring assembly is formed by stacking a plurality of single spring forks in a positive and negative overlapping manner.

4. The assembly of claim 2, wherein the upper left fork is the same length as the lower left fork, the upper right fork is the same length as the lower right fork, the upper left fork is different length from the upper right fork, and the stacked spring assembly is formed by stacking a plurality of single spring forks in a positive and negative overlapping manner.

5. The fork assembly of claim 2, wherein the single fork is divided into a first single fork and a second single fork, the first single fork has the same length as the upper left fork, the upper right fork, the lower right fork and the lower left fork, the second single fork has the same length as the upper left fork and the lower left fork, the upper right fork and the lower right fork, the upper left fork and the upper right fork have different lengths, or the second single fork has the same length as the upper left fork and the lower right fork, the upper left fork and the lower left fork, the staggered stack type spring assembly is formed by stacking the first single fork and the second single fork at intervals, and a second single fork is disposed between two adjacent first single forks.

6. A fork assembly according to any one of claims 2 to 5, wherein the resilient connecting member is a pin and the main plate of the single piece fork has a pin hole for engaging with the pin.

7. The fork assembly of any one of claims 1 to 5, wherein the resilient connecting member is a connecting plate, a plurality of fasteners are juxtaposed on the connecting plate, the upper and lower sides of the single-piece fork are each provided with a slot for engaging with the fastener, and a plurality of single-piece forks are fastened between the two connecting plates.

8. The fork assembly of claim 1 wherein said fork contacts are formed by a bending process and said single piece fork is formed by a stamping process.

9. The fork assembly of claim 1, wherein the end surface of the end of the adaptor terminal that is plugged into the stacked resilient member is wavy.

10. The fork assembly of claim 1 wherein a cable is further connected to the transition terminal, the cable being crimped or welded to the transition terminal.

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