TWM502982U - Track type electrical connection terminal structure - Google Patents

Description

Track type electric connection terminal structure

The present invention relates to a rail type electrical connection terminal structure; in particular, a bracket body and a wire joint for dividing a conductive bracket into two set shapes to reduce waste generated during manufacture; and to make the wire joint have higher rigidity Under the conditions, the new type of auxiliary fixed and standard metal shrapnel movement path.

Applying a metal member or a metal dome wrapped in an insulating case (usually made of a plastic material) to press a wire entering the terminal to form an electrically coupled coupling terminal, and engaging the coupling terminal in an aligned configuration A grounding track (or conductive track) to establish a common grounding device for an electrical or mechanical device to derive the residual voltage or static electricity of those machines is known in the art; for example, German DE 20 2008 015 306 U1, US 2013/0143433 A1 "CONNECTION TERMINAL", US 2014/0127932 A1 "ELECTRICAL CONNECTION TERMINAL", DE 10 2012 009 286 A1, US 5362259 "GROUND CONDUCTOR TERMINAL" and other patents provide a typical embodiment .

The grounding conductive terminal comprises an insulative housing, the housing is provided with a conductive bracket, the conductive bracket is connected with a plurality of wire joints, and a metal shrapnel assembled in the wire joint is used to pivotally connect the grounding from the machine equipment. The wires form a contact or an electrical connection. The metal dome includes a head end that bites the wire after the wire is inserted into the housing so that the wire does not easily come out of contact with the metal dome or the insulating housing. The contact between the wire and the metal dome can be released unless the operator operates another tool into the housing to push the head end.

A subject of the conventional rail-type electrical connection terminal in manufacturing and operation applications includes: 1. The structure of the conductive bracket of the conventional electrical connection terminal is complicated, complicated to manufacture, time consuming, unfavorable for productivity, and easy to generate waste. . For example, US 2013/0330985 A1 (i.e., CN 103392271 A "Metal parts for electrical connecting means") patent case provides a metal plate member, the ends of which are respectively punched out at the ends of the metal plate member, the contact edges a foot, abutting leg, two side walls and two corresponding end regions, four curved sides, two acute corner edges, ends, recesses and protrusions; and bending the abutting legs in a first direction 90°, the abutting leg and the contact leg are bent together by 90° toward the second direction and the base leg; the side wall is bent 90° in the first direction, so that the two acute corner edges are fitted to each other, and the end faces toward the first The three directions are bent by 90° to form a space for restraining the metal dome. US 2013/0143433 A1 "CONNECTION TERMINAL" patent also discloses a conductive bracket with a complex bent structure. 2. In particular, conventionally formed conductive brackets and wire joints are made of copper with good electrical conductivity, and their rigidity or hardness is relatively low, which cannot form an ideal restraint or standard effect on the movement of the metal dome; Selecting materials with high rigidity or hardness (iron, steel, etc.) may cause unfavorable conductivity. In other words, attempting to meet the effects of good electrical conductivity, rigidity or high hardness is a dilemma. Although the old method has revealed a steel material having a high rigidity or hardness and an externally plated copper layer having good conductivity, the technique is not only troublesome, time consuming, but also costly.

Another problem in the manufacturing and operation applications of the conventional rail-type electrical connection terminal is that when the wire is inserted into the housing and the wire connector, the wire will first press down the metal dome, then the elastic force of the metal dome, and the wire. The joints collectively bite or clamp the wires to form an electrical connection. In order to avoid the insertion of the wire into the casing, due to the large number of inserting operations and human negligence, the bare metal end of the wire is inserted into the casing or the metal dome is yawed, the casing is scraped, the clamping is unstable, etc. The art has revealed a closed wire joint structure that can improve the described problems. Typical embodiments are provided, for example, in DE 20 2008 015 306 U1, US 2013/0143433 A1 "CONNECTION TERMINAL", DE 10 2012 009 286 A1, EP 1 353 407 A1, and the like.

However, as those skilled in the art know, the closed wire joint structure is not easy to discharge the heat generated by the current, and not only the material cost is high, but also the high temperature and high resistance are easily generated, and the conductive effect is lowered. Not what we expected.

Typically, these references show techniques in the design of rail-type electrical terminals or conductive supports, wire joints, metal domes and related combinations; if redesigned, consider the structure of the conductive bracket, wire joint, and metal shrapnel. Combining, making its structure different from the conventional one, will change its use form, which is different from the old one; in essence, it will also increase its application range. For example, changing the conductive support of the coupling terminal, the fixing structure or the combination relationship of the wire joints, making their structure easy to manufacture, improving the shape of the conventional complicated bending structure, cumbersome and time-consuming operation, and easy generation of waste; or further Under the condition of high rigidity or high hardness, it has the function of good electrical conductivity; at the same time, under the heat dissipation effect of the conventional structure, the auxiliary fixed metal shrapnel is obtained, and the bare metal wire of the old method wire is inserted. Damage to the casing or the metal shrapnel yaw, scraping the casing, unstable clamping, etc., have been significantly improved and other means. None of these topics have been specifically taught or disclosed in the above references.

Therefore, the main purpose of the present invention is to provide a rail-type electrical connection terminal structure, which provides a function of reducing the generation of waste during manufacturing, increasing the heat dissipation effect, and the stability of the operation movement under the condition of compact structure. The utility model comprises a conductive bracket fitted in the insulating housing; the conductive bracket is divided into two parts of the bracket body and the wire joint, respectively, to be formed into a set shape, C-shaped profile or shape. The wire joints are assembled with a metal dome that is commonly disposed on the body of the bracket and pivotally connects the grounding wires that are received from the machine equipment. The wire joint is provided with a first side, a second side connecting the first side, a third side connecting the second side, and a fourth side connecting the third side; the second side, the third side and the fourth side are common Auxiliary detention of metal shrapnel and prevention of metal shrapnel shifting.

According to the track type electric connection terminal structure of the present invention, a cantilever is vertically protruded from both ends of the main body of the bracket, so that the main body of the bracket forms a cross-sectional structure or contour. And, the first side of the wire joint is connected with a secondary side; the secondary side and the fourth side jointly define an opening, and the wire joint forms a C-shaped cross-sectional profile or shape.

Referring to Figures 1, 2 and 3, the track type electrical connection terminal structure of the present invention comprises a combination of a conductive bracket and a metal dome, which are respectively indicated by reference numerals 10 and 20. The conductive bracket 10 and the metal dome 20 are jointly mounted in an insulative housing 30 for pivoting the wires and snapping onto a ground rail (or conductive track) to establish a common grounding device for an electrical or mechanical device (not shown) display).

In the preferred embodiment, the conductive support 10 is divided into two portions, a bracket body 40 and a wire connector 50. The bracket body 40 is made of a copper material having good conductivity; the bracket body 40 is provided with a notch 41 for combining the metal domes 20. A cantilever 42 is vertically protruded from both ends of the bracket body 40, so that the bracket body 40 forms a "ㄩ" type sectional structure or contour. The inner surface 42a and the outer surface 42b of the cantilever 42 are respectively provided with a shoulder portion 43 and a groove 44. The shoulder portion 43 prevents the head end 23 of the metal dome 20 from expanding over the cantilever 42 of the bracket body 40 and the wire joint 50.

That is, the metal dome 20 includes a first segment 21 and a second segment 22 that connects the first segment 21. The first segment 21 has a tip end 23, and the second segment 22 has a trailing end 24; the trailing end 24 is formed with a finger portion 25 that is inserted into the notch 41 of the bracket body 40; and the head end 23 is pressed against the shoulder of the cantilever 42 43 on.

The figure shows that the recess 44 can be used to combine the positioning wire joints 50. The wire joint 50 selects a material having a high rigidity or hardness (for example, iron, steel, etc.) to form a slab blank, and the wire joint 50 is formed from the form of the slab blank in the structure shown in Fig. 2. Compared with the old method, the conductive bracket 10 is divided into two parts of the bracket body 40 and the wire joint 50, so that the bracket body 40 of the conductive bracket 10 can not only conform to the condition of good conductivity, and the wire joint 50 conforms to rigidity or hardness. The requirements also make their structure simple and relatively reduce the situation of waste generation. Moreover, the structure of the bracket main body 40 and the wire joint 50 can be completed only by one or two bending operations, and the conventional art must be implemented in multiple times and at least three different directions of bending work, and the production is completed. Simple role.

Referring to FIGS. 2 and 3, the wire joint 50 includes a first side 51, a second side 52 perpendicularly connecting the first side, a third side 53 perpendicularly connecting the second side 52, and a fourth side vertically connecting the third side 53. 54; and a pair of sides 55 are vertically connected to the first side 51, and together with the fourth side 54 define an opening 56, so that the wire joint 50 forms a "C"-shaped cross-sectional profile or shape to accommodate the metal dome 20 .

In the embodiment taken, the second side 52 of the wire joint is formed with a notch 57, 58 from the upper and lower regions shown in the drawing, and extends to the third side 53 and the fourth side 54. That is, the notches 57, 58 have the width of the third side 53 and the fourth side 54 smaller than the width of the partial area of the first side 51 or the second side 52. The opening 56 and the notches 57, 58 provide the wire joint 50 in a (semi) open configuration that provides heat dissipation during application.

The second and third figures also depict the case where the wire joint 50 is assembled with the metal domes 20, which are collectively disposed on the bracket body 40. The first side 51 (upper edge) of the wire joint engages the recess 44 of the bracket body 40, and the second side 52 and the secondary side 55 cooperate to surround the cantilever 42 of the bracket body 40. And, the wire joint second side 52, the third side 53 and the fourth side 54 together surround the second section 22 of the metal dome 20 such that the head end 23 of the first section 21 is pressed against the shoulder 43 of the cantilever 42. At the same time, the second side 52, the third side 53 and the fourth side 54 of the wire joint together surround the structure of the second section 22 of the metal dome to assist in fixing and regulating the movement of the metal dome 20.

It should be noted that when the wire is inserted into the insulating housing 30 and the wire connector 50 to press the first segment 21 or the head end 23 of the metal dome, the secondary side 55 and/or the second side 52 of the wire connector 50 can be guided together. The movement of the metal dome 20 is guided, and the metal dome 20 is prevented from being displaced and the insulating case 30 is covered.

Please refer to Figure 4 for a possible embodiment. The wire joint third side 53 and the metal shrapnel second section 22 perform a weld 90 operation to make their combination more reliable and stable.

FIG. 4 also depicts that a groove 523 is formed between the second side 52 and the third side 53 of the wire joint; a groove 534 is formed between the third side 53 and the fourth side 54. Corresponding to the grooves 523 and 534, the two sides of the metal elastic piece second section 22 are formed with the fitting portion 26, and the fitting grooves 523 and 534 are fixedly combined with the wire joint 50 and the metal elastic piece 20.

Figures 5 and 6 disclose a modified embodiment. The wire joint third side 53 and the metal elastic piece second section 22 are respectively provided with a combination portion 59, 27, and the combination portions 59, 27 form a hole structure, which is fixed by a fixing device 95 (for example, a bolt, a screw, a rivet or the like). The wire joint 50 and the metal dome 20 are combined.

5 and 6 also depict a groove 523 formed between the second side 52 and the third side 53 of the wire joint; a groove 534 is formed between the third side 53 and the fourth side 54. Corresponding to the grooves 523 and 534, the two sides of the metal elastic piece second section 22 are formed with the fitting portion 26, and the fitting grooves 523 and 534 are fixedly combined with the wire joint 50 and the metal elastic piece 20.

See Figures 7 and 8 for a possible embodiment. The combined portion 27 of the second segment 22 of the metal dome is in a hole shape, and the combined portion 59 of the third side 53 of the wire joint forms a stud structure, combined with the hole of the metal dome assembly portion 27, and the fixed metal dome 20 and the wire connector are fixed. 50.

FIGS. 7 and 8 also depict that a groove 523 is formed between the second side 52 and the third side 53 of the wire joint; a groove 534 is formed between the third side 53 and the fourth side 54. Corresponding to the grooves 523 and 534, the two sides of the metal elastic piece second section 22 are formed with the fitting portion 26, and the fitting grooves 523 and 534 are fixedly combined with the wire joint 50 and the metal elastic piece 20.

Figures 9, 10 show a modified embodiment. The combination portion 27 of the second segment 22 of the metal dome is a hole structure, and the combination portion 59 of the third side 53 of the wire joint is slightly bent in the direction of the first side 51, and is inserted into the hole of the metal dome assembly portion 27, and combined. The metal dome 20 and the wire connector 50 are fixed.

The figures 9 and 10 also depict that a groove 523 is formed between the second side 52 and the third side 53 of the wire joint; a groove 534 is formed between the third side 53 and the fourth side 54. Corresponding to the grooves 523 and 534, the two sides of the metal elastic piece second section 22 are formed with the fitting portion 26, and the fitting grooves 523 and 534 are fixedly combined with the wire joint 50 and the metal elastic piece 20.

Figures 11 and 12 show a derivative embodiment. The combination portion 27 of the second portion 22 of the metal dome is a hole structure, and the combination portion 59 of the third side 53 of the wire joint protrudes toward the first side 51 by a convex pile structure, and is inserted into the hole of the metal dome assembly portion 27, and is fixedly fixed. Metal dome 20 and wire connector 50.

FIGS. 11 and 12 also depict a groove 523 formed between the second side 52 and the third side 53 of the wire joint; a groove 534 is formed between the third side 53 and the fourth side 54. Corresponding to the grooves 523 and 534, the two sides of the metal elastic piece second section 22 are formed with the fitting portion 26, and the fitting grooves 523 and 534 are fixedly combined with the wire joint 50 and the metal elastic piece 20.

Please refer to Figures 13 and 14 for a modified embodiment. The combination portion 27 of the metal dome 20 is a recess structure formed on both sides of the second segment 22; corresponding to the recess structure of the two-side combination portion 27 of the second segment 22, the wire joint 50 is respectively provided on the second side 52 and the fourth side 54 The block fitting portions 52a, 54a are combined with the concave portions of the metal dome assembly portion 27 to fix the metal dome 20 and the wire tab 50.

The figures 13 and 14 also depict that a groove 523 is formed between the second side 52 and the third side 53 of the wire joint; a groove 534 is formed between the third side 53 and the fourth side 54. Corresponding to the grooves 523 and 534, the two sides of the metal elastic piece second section 22 are formed with the fitting portion 26, and the fitting grooves 523 and 534 are fixedly combined with the wire joint 50 and the metal elastic piece 20.

Please refer to Figures 15, 16 for a possible embodiment. The combination portion 27 of the metal dome 20 is a recess structure formed on both sides of the second segment 22; corresponding to the recess structure of the two-side combination portion 27 of the second segment 22, the wire joint 50 is respectively provided on the second side 52 and the fourth side 54 The round-ply-shaped fitting portions 52a, 54a are combined with the concave portions of the metal dome assembly portion 27 to fix the metal dome 20 and the wire joint 50.

The figures 15 and 16 also depict that a groove 523 is formed between the second side 52 and the third side 53 of the wire joint; a groove 534 is formed between the third side 53 and the fourth side 54. Corresponding to the grooves 523 and 534, the two sides of the metal elastic piece second section 22 are formed with the fitting portion 26, and the fitting grooves 523 and 534 are fixedly combined with the wire joint 50 and the metal elastic piece 20.

Referring to Figure 17, a modified embodiment is shown. The wire joint 50 is provided with a combination portion 59 on the second side 52; the combination portion 59 is bent toward the fourth side 54 in a wing structure, crimping the second portion 22 of the metal dome 20, and combining the fixed metal dome 20 and the wire joint 50.

Figure 17 also depicts the insertion of the fingers 25 of the second end 24 of the metal dome into a recess 46 provided in the body 40 of the bracket; a combination of the fixed metal dome 20 and the bracket body 40.

Referring to Figure 18, another modified embodiment is shown. The wire joint 50 is provided with a combination portion 59 on the fourth side 54; the combination portion 59 is bent toward the second side 52 in a wing structure, crimping the second portion 22 of the metal dome 20, and combining the fixed metal dome 20 and the wire joint 50.

Figure 18 also depicts the finger 25 of the second end 24 of the metal dome inserted into a recess 46 provided in the bracket body 40; a combination of the fixed metal dome 20 and the bracket body 40.

Referring to Figure 19, a derived embodiment is shown. The wire joint 50 is respectively provided with a combination portion 59 on the second side 52 and the fourth side 54; the two combination portions 59 are bent from the second side 52 and the fourth side 54 respectively to form a wing structure for collectively crimping the metal dome 20 The second section 22 combines the fixed metal dome 20 and the wire connector 50.

Figure 19 also depicts the insertion of the fingers 25 of the second end 24 of the metal dome into a recess 46 provided in the body 40 of the bracket; a combination of the fixed metal dome 20 and the bracket body 40.

Please refer to Figure 20 for a possible embodiment. The fourth side 54 of the wire joint 50 is perpendicularly connected to the combination portion 59; the combination portion 59 extends toward the second side 52 to form a plate-like body, and the second portion 22 of the metal dome 20 is crimped to fix the metal dome 20 And wire connector 50.

It can be understood that the second end 24 of the metal dome can also be provided with a finger inserted into a through hole provided in the bracket body 40; the combined structure of the fixed metal dome 20 and the bracket body 40 is assisted.

Typically, the track type electrical connection terminal structure has the following advantages under the condition of being compacted: Compared with the old method, the following advantages are obtained: 1. The bracket body 40 and the wire joint 50 of the conductive bracket 10 And related component structure (for example, dividing the conductive bracket 10 into two parts of the bracket body 40 and the wire joint 50, respectively selecting a material having good conductivity and high rigidity to form a ㄩ type, a C-shaped section profile or shape; The third side 53 is perpendicularly connected to the fourth side 54 and cooperates with the second side 52 to jointly hold the metal dome 20; the first side 51 is connected to the secondary side 55, and together with the fourth side 54 defines an opening 56; the metal dome 20 and the wire connector The setting of the combination portion 27, 59, and the like, respectively, has been redesigned to make it different from the conventional user and to change its use and operation type, and is different from the old method. In essence, the conventional structure is complicated, the manufacturing operation is troublesome, time-consuming and costly, and the like, and significant improvement is obtained. 2. The fourth side 54 and the secondary side 55 of the wire joint 50 together define an opening 56, and the second side 52 is provided with notches 57, 58 to form the wire joint 50 into a (semi) open configuration, which is not only Knowing the ideal heat dissipation effect of the structure, while the second side 52, the third side 53 and the fourth side 54 of the wire joint 50 together surround the second section 22 of the metal dome, the function of assisting the restriction and positioning of the metal dome 20 can be obtained; the secondary side 55 And/or the second side 52 can jointly guide and standardize the movement path of the metal elastic piece 20 by the wire pressing, and also cause the bare metal end of the old method wire to be inserted into the casing or the metal spring piece to be yawed, and the casing and the clamp are scraped. Significant improvements have been made in the case of instability. 3. The fixed structure or combination relationship of the bracket main body 40, the wire joint 50 and the metal elastic piece 20 of the electrical connection terminal conductive bracket 10 has been obviously changed; so that they are in a condition of high rigidity or high hardness and good electrical conductivity. Not only makes their structure easy to manufacture, but also improves the shape of the old complicated folding structure and is prone to waste.

Therefore, this creation department provides an effective track-type electrical connection terminal structure, its spatial type is different from the conventional ones, and has the advantages unmatched in the old law. It shows considerable progress and is fully fulfilled. Meet the requirements of the new patent.

However, the above is only a feasible embodiment of the present invention, and is not intended to limit the scope of the present invention, that is, the equivalent changes and modifications made by the scope of the patent application of the present invention are covered by the scope of the creative patent. .

10‧‧‧conductive bracket

20‧‧‧Metal shrapnel

21‧‧‧ first paragraph

22‧‧‧ second paragraph

23‧‧‧ head end

24‧‧‧End

25‧‧ ‧ fingers

26‧‧‧Inlay

27, 59‧‧‧ combination department

30‧‧‧Insulated housing

40‧‧‧ bracket body

41‧‧‧ Missing slot

42‧‧‧cantilever

42a‧‧‧ inside

42b‧‧‧ outside

43‧‧‧ shoulder

44‧‧‧ Groove

46‧‧‧ hole

50‧‧‧Wire connector

51‧‧‧ first side

52‧‧‧ second side

523, 534‧‧‧ trench

52a, 54a‧‧‧ embedded

53‧‧‧ third side

54‧‧‧ fourth side

55‧‧‧ secondary side

56‧‧‧ openings

57, 58‧‧ ‧ gap

90‧‧‧Welding

95‧‧‧fixer

Figure 1 is a schematic view of the structure of the present invention and the combination of the housing; the figure shows the structure of the bracket body of the conductive bracket, the wire joint and the metal dome combination.

Figure 2 is a schematic diagram of the structure of the creation.

Figure 3 is a schematic diagram of the structural combination of Figure 2.

Figure 4 is a schematic view of one embodiment of the present invention; depicting the welding of the stent body and the wire joint.

Figure 5 is a schematic view showing the structural combination of another embodiment of the present creation.

Figure 6 is a schematic cross-sectional view showing the structural combination of Figure 5.

Figure 7 is a schematic view showing the structural combination of still another embodiment of the present creation.

Figure 8 is a schematic cross-sectional view showing the structural combination of Figure 7.

Fig. 9 is a schematic view showing the structural combination of still another embodiment of the present creation.

Figure 10 is a schematic cross-sectional view showing the structure of Figure 9.

Figure 11 is a schematic view showing the structural combination of an embodiment of the present creation.

Figure 12 is a cross-sectional view showing the structural combination of Figure 11.

Figure 13 is a schematic view showing the structural combination of another embodiment of the present creation.

Fig. 14 is a schematic view showing the structure combination of Fig. 13.

Figure 15 is a schematic view showing the structural combination of still another embodiment of the present creation.

Figure 16 is a schematic diagram of the structural combination of Figure 15.

Figure 17 is a schematic view showing the structural combination of still another embodiment of the present creation.

Figure 18 is a schematic view of the structural combination of Figure 17.

Figure 19 is a schematic view showing the structural combination of the second embodiment of the present invention.

Figure 20 is a schematic diagram showing the structure of a possible embodiment of the present invention.

10‧‧‧conductive bracket

20‧‧‧Metal shrapnel

21‧‧‧ first paragraph

22‧‧‧ second paragraph

23‧‧‧ head end

24‧‧‧End

25‧‧ ‧ fingers

40‧‧‧ bracket body

41‧‧‧ Missing slot

42‧‧‧cantilever

42a‧‧‧ inside

42b‧‧‧ outside

43‧‧‧ shoulder

44‧‧‧ Groove

50‧‧‧Wire connector

51‧‧‧ first side

52‧‧‧ second side

53‧‧‧ third side

54‧‧‧ fourth side

55‧‧‧ secondary side

56‧‧‧ openings

57, 58‧‧ ‧ gap

Claims (29)

A rail-type electrical connection terminal structure includes a conductive bracket; the conductive bracket is divided into two parts: a bracket body and a wire joint; a cantilever is respectively protruded from two ends of the bracket body, and the wire joint is combined; the wire joint includes a first side and a connection a second side of the first side, a third side connecting the second side, and a fourth side connected to the third side for receiving a metal dome; and the metal dome includes a first segment and a second segment connecting the first segment The first segment has a head end and the second segment has a tail end. The rail-type electrical connection terminal structure according to claim 1, wherein the two ends of the bracket body vertically protrude from the cantilever, so that the bracket body forms a 断面-shaped sectional structure; the first side of the wire joint is vertically connected Two sides and one side, the second side is perpendicularly connected to the third side, the third side is perpendicularly connected to a fourth side, and the fourth side and the secondary side jointly define an opening, so that the wire joint forms a C-shaped cross-sectional profile And, at least the secondary side guides the movement path of the metal dome. The rail-type electrical connection terminal structure according to claim 2, wherein the first side of the wire joint cooperates with the second side and the secondary side to surround the cantilever of the bracket body; and the second side, the third side and the third side of the wire joint The fourth side of the metal shrapnel is surrounded by the four sides, and the bracket main body, the wire joint and the metal shrapnel are assembled together in an insulating casing. The rail-type electrical connection terminal structure according to claim 2, wherein the bracket body is provided with a slot for combining the metal domes; a shoulder and a groove are respectively disposed on the inner surface and the outer surface of the cantilever; The upper edge of the first side of the joint engages the groove; the first side of the wire joint cooperates with the second side and the secondary side to surround the cantilever of the bracket body; and the second side, the third side and the fourth side of the wire joint together surround the metal dome In the second stage, the head end of the first section is pressed against the shoulder of the cantilever; the tail end of the second section of the metal dome is formed with a finger portion inserted into the slot of the bracket body; the bracket body, the wire joint and the metal dome are assembled together Inside an insulating housing. The rail-type electrical connection terminal structure according to claim 1 or 2 or 3 or 4, wherein the bracket body is made of a metal material having good electrical conductivity; the wire joint is made of a metal material having high rigidity; At least one of the upper and lower regions of the second side is formed with a notch and extends to the third side and the fourth side to form the wire joint to form an at least semi-open structure. The rail-type electrical connection terminal structure according to claim 1 or 2 or 3 or 4, wherein the second portion of the metal dome and the third side of the wire joint are respectively provided with a combination portion; the combination portion forms a hole structure and is fixed Fixing the combined metal shrapnel and the wire joint; forming a groove between the second side and the third side of the wire joint; forming a groove between the third side and the fourth side; and forming the two sides of the second side of the metal elastic piece Part, fitting groove. The rail-type electrical connection terminal structure according to claim 5, wherein the second portion of the metal dome and the third side of the wire joint are respectively provided with a combination portion; the combination portion forms a hole structure, and the combined metal dome is fixed with the fixing device; a wire joint; a groove is formed between the second side and the third side of the wire joint; a groove is formed between the third side and the fourth side; and the second side of the metal elastic piece is formed with a fitting portion, the fitting groove . The rail-type electrical connection terminal structure according to claim 1 or 2 or 3 or 4, wherein the second portion of the metal dome and the third side of the wire joint are respectively provided with a combination portion; the combination of the second portion of the metal dome Forming a hole pattern, the combined portion of the third side of the wire joint is a stud structure, combined with the hole of the metal shrapnel combination portion; a groove is formed between the second side and the third side of the wire joint; the third side and A groove is formed between the fourth sides; the two sides of the second section of the metal dome are formed with an embedded portion and a fitting groove. The rail-type electrical connection terminal structure according to claim 5, wherein the second portion of the metal dome and the third side of the wire joint are respectively provided with a combination portion; the combined portion of the second portion of the metal dome forms a hole pattern. The combined portion of the third side of the wire joint is a stud structure combined with the hole of the metal shrapnel combination portion; a groove is formed between the second side and the third side of the wire joint; and a third side and a fourth side are formed There is a groove; two sides of the second section of the metal dome are formed with an embedded portion and a fitting groove. The rail-type electrical connection terminal structure according to claim 1 or 2 or 3 or 4, wherein the second portion of the metal dome and the third side of the wire joint are respectively provided with a combination portion; the combination of the second portion of the metal dome The portion is a hole structure, and the combined portion of the third side of the wire joint is bent with a wing structure combined with the hole of the metal shrapnel combination portion; a groove is formed between the second side and the third side of the wire joint; the third side and A groove is formed between the fourth sides; the two sides of the second section of the metal dome are formed with an embedded portion and a fitting groove. The rail-type electrical connection terminal structure according to claim 5, wherein the second portion of the metal dome and the third side of the wire joint are respectively provided with a combination portion; the combined portion of the second portion of the metal dome is a hole structure. The combination portion of the third side of the wire joint bends a wing structure and is combined with the hole of the metal dome assembly portion; a groove is formed between the second side and the third side of the wire joint; and a third side and a fourth side are formed There is a groove; two sides of the second section of the metal dome are formed with an embedded portion and a fitting groove. The rail-type electrical connection terminal structure according to claim 1 or 2 or 3 or 4, wherein the second portion of the metal dome and the third side of the wire joint are respectively provided with a combination portion; the combination of the second portion of the metal dome The portion is a hole structure, and the combined portion of the third side of the wire joint protrudes toward the first side by a convex pile structure, and is combined with the hole of the metal shrapnel combination portion; a groove is formed between the second side and the third side of the wire joint a groove; a groove is formed between the third side and the fourth side; the two sides of the second section of the metal elastic piece are formed with an embedded portion and a fitting groove. The rail-type electrical connection terminal structure according to claim 5, wherein the second portion of the metal dome and the third side of the wire joint are respectively provided with a combination portion; the combined portion of the second portion of the metal dome is a hole structure. a combination portion of the third side of the wire joint protrudes toward the first side to form a convex pile structure, and is combined with a hole of the metal elastic piece combination portion; a groove is formed between the second side and the third side of the wire joint; the third side and A groove is formed between the fourth sides; the two sides of the second section of the metal dome are formed with an embedded portion and a fitting groove. The rail-type electrical connection terminal structure according to claim 1 or 2 or 3 or 4, wherein the second section of the metal dome is provided with a combination portion; the combined portion of the metal dome is a recess structure formed on both sides of the second section Corresponding to the concave structure of the two-stage combined portion of the second section, the wire joint is respectively provided with a piece-shaped fitting portion on the second side and the fourth side, and is combined with the concave portion of the metal shrapnel combination portion; the second side and the third side of the wire joint A groove is formed therebetween; a groove is formed between the third side and the fourth side; and two sides of the second section of the metal dome are formed with an embedded portion and a fitting groove. The rail-type electrical connection terminal structure according to claim 5, wherein the second section of the metal dome is provided with a combination portion; the metal dome assembly portion is a concave structure formed on both sides of the second section; a recessed portion structure, the wire joint is respectively provided with a piece-shaped fitting portion on the second side and the fourth side, and is combined with the concave portion of the metal shrapnel combination portion; a groove is formed between the second side and the third side of the wire joint; A groove is formed between the three sides and the fourth side; the two sides of the second section of the metal dome are formed with the fitting portion and the fitting groove. The rail-type electrical connection terminal structure according to claim 1 or 2 or 3 or 4, wherein the second section of the metal dome is provided with a combination portion; the combined portion of the metal dome is a recess structure formed on both sides of the second section Corresponding to the concave structure of the two-stage combined portion of the second section, the wire joint is respectively provided with a round pile fitting portion on the second side and the fourth side, and is combined with the concave portion of the metal elastic piece combining portion; the second side and the third side of the wire joint A groove is formed therebetween; a groove is formed between the third side and the fourth side; and two sides of the second section of the metal dome are formed with an embedded portion and a fitting groove. The rail-type electrical connection terminal structure according to claim 5, wherein the second section of the metal dome is provided with a combination portion; the combined portion of the metal dome is a concave structure formed on both sides of the second section; corresponding to the two sides of the second section a recess structure of the combination portion, the wire joint is respectively provided with a round pile fitting portion on the second side and the fourth side, and is combined with the concave portion of the metal elastic piece combining portion; a groove is formed between the second side and the third side of the wire joint; A groove is formed between the third side and the fourth side; the two sides of the second section of the metal dome are formed with an embedded portion and a fitting groove. The track type electrical connection terminal structure according to claim 1 or 2 or 3, wherein the wire joint is provided with a combination portion on the second side; the combination portion is bent in a direction of the fourth side, and a wing structure is crimped The second section of the metal dome is combined with the fixed metal dome and the wire joint; the second end of the metal dome has a finger end and is inserted into a through hole provided in the body of the bracket. The rail-type electrical connection terminal structure according to claim 18, wherein the bracket body is made of a metal material having good electrical conductivity; the wire joint is made of a metal material having high rigidity; and the second side of the wire joint is At least one of the lower regions is formed with a notch and extends to the third side and the fourth side to form the wire joint to form an at least semi-open structure. The rail-type electrical connection terminal structure according to claim 1 or 2 or 3, wherein the wire joint is provided with a combination portion on a fourth side; the combination portion is bent in a direction of the second side, and a wing structure is crimped The second section of the metal dome is combined with the fixed metal dome and the wire joint; the second end of the metal dome has a finger end and is inserted into a through hole provided in the body of the bracket. The rail-type electrical connection terminal structure according to claim 20, wherein the bracket body is made of a metal material having good electrical conductivity; the wire joint is made of a metal material having high rigidity; and the second side of the wire joint is At least one of the lower regions is formed with a notch and extends to the third side and the fourth side to form the wire joint to form an at least semi-open structure. The rail-type electrical connection terminal structure according to claim 1 or 2 or 3, wherein the wire joint is respectively provided with a combination portion on the second side and the fourth side; the two combined portions are respectively from the second side and the second side The four sides are bent out to form a wing structure, and the second section of the metal elastic piece is pressed together; the second end of the metal elastic piece has a finger portion inserted into a through hole provided in the main body of the bracket. The rail-type electrical connection terminal structure according to claim 22, wherein the bracket body is made of a metal material with good electrical conductivity; the wire joint is made of a metal material having high rigidity; and the second side of the wire joint is At least one of the lower regions is formed with a notch and extends to the third side and the fourth side to form the wire joint to form an at least semi-open structure. The rail-type electrical connection terminal structure according to claim 1 or 2 or 3, wherein the fourth side of the wire joint is perpendicularly connected to a combined portion; the combined portion extends in a direction of the second side to form a plate-like body. The structure, crimping the second section of the metal dome, combines the fixed metal dome and the wire joint. The rail-type electrical connection terminal structure according to claim 24, wherein the bracket body is made of a metal material having good electrical conductivity; the wire joint is made of a metal material having high rigidity; and the second side of the wire joint is At least one of the lower regions is formed with a notch and extends to the third side and the fourth side to form the wire joint to form an at least semi-open structure. The track type electrical connection terminal structure according to claim 24, wherein the second end of the metal elastic piece has a finger end and is inserted into a through hole provided in the main body of the bracket. The rail-type electrical connection terminal structure according to claim 25, wherein the second end of the metal dome has a finger end and is inserted into a through hole provided in the main body of the bracket. The rail type electrical connection terminal structure of claim 1 or 2 or 3 or 4, wherein the first side of the wire joint is welded to the cantilever of the bracket body. The rail-type electrical connection terminal structure according to claim 5, wherein the first side of the wire joint is welded to the cantilever of the main body of the bracket.