Electrical connection terminal
By employing a special design for the clamping spring and a frame structure for the metal parts, the issues of stability and ease of use in the manufacturing and clamping process of electrical connection terminals are resolved, enabling reliable conductor connection and preventing disconnection, thus simplifying the manufacturing process.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- PHOENIX CONTACT GMBH & CO KG
- Filing Date
- 2023-11-02
- Publication Date
- 2026-05-15
AI Technical Summary
Existing electrical connection terminals are prone to damage during manufacturing and the clamping process is not simple enough, making it difficult to balance clamping force and insertion difficulty.
The clamping spring's connecting area wraps around the fixed section of the metal part with an angle greater than 180°. The metal part has a stop section and a frame-like structure. The clamping spring can rotate but is held firmly. Position changes are achieved with the assistance of a manipulator, and welded legs are provided on the metal part to enhance stability.
It achieves stability and simplicity of electrical connection terminals, prevents damage to clamping springs, ensures reliable conductor connection and prevents accidental disconnection, and simplifies the manufacturing process.
Smart Images
Figure CN224248958U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to an electrical connection terminal having a clamping spring and a metal component. The clamping spring has clamping legs, an operating leg, and a connection area connecting the two legs. The metal component has a contact section, a fixing section, and a conductor introduction opening. In the connection terminal, the clamping spring is pivotally supported on the metal component, allowing it to be moved from an open first position to a closed second position. In the first position, an electrical conductor can be inserted into the clamped position without the clamping legs needing to deflect against their spring force. In the second position, the inserted conductor is electrically clamped between the end of the clamping leg and the contact section of the metal component, thereby electrically connecting the conductor to the connection terminal. Background Technology
[0002] Electrical connection terminals with various implementations are known. Connection terminals can be configured as so-called printed terminals for connecting electrical conductors to a circuit board, or as junction boxes for connecting to another conductor. They can use either annular clamping springs (so-called tension spring terminals) or U-shaped or V-shaped clamping springs (so-called leg springs). In annular tension springs, as the name suggests, the conductor to be connected is pulled towards the busbar by the clamping legs.
[0003] In contrast, in U-shaped or V-shaped clamping springs, the conductor to be connected is pressed against the contact section of the busbar or metal component by the clamping legs. This type of connection terminal is also called a direct-insertion connection terminal because it allows for the insertion of a rigid conductor or a conductor with a terminal sleeve into the clamped position without the need for a tool to open the clamp. The clamping legs resist their spring force deflection by the conductor insertion; therefore, a certain amount of force is required for the conductor insertion. Here, a trade-off must always be struck between the high spring force of the clamping legs, which is advantageous for good electrical contact, and the low spring force of the clamping legs, which makes conductor insertion easier.
[0004] A connecting terminal having a substantially L-shaped metal part and a V-shaped clamping spring is known from EP 2 324 533 B1, wherein the clamping spring is pivotally supported in a housing that houses the clamping spring and the metal part. For this purpose, a support pin is constructed in the housing and an arcuate abutment shoulder is constructed at a slight interval from the support pin, between which the arcuate connecting area of the clamping spring is pivotally guided.
[0005] The printed terminal type electrical connector described at the beginning is known from DE 20 2008 016 856 U1. In this connector, a clamping spring is rotatably arranged on a generally U-shaped metal piece. For this purpose, a rotating pin is constructed on the sidewall of the metal piece, the rotating pin being supported in a corresponding opening constructed in a tab, which is laterally bent on the operating leg of the clamping spring. The connector known from DE 20 2008 016 856 U1 has the advantage that the clamping leg of the clamping spring does not need to resist its spring force deflection when inserting the stripped conductor to be connected, so that even when the clamping spring is in its first (open) position, the flexible conductor can be inserted into the electrical connector without the aid of tools. Utility Model Content
[0006] The purpose of this invention is to further improve the electrical connection terminal described at the beginning, making it as simple to manufacture as possible. Here, the connection terminal should be constructed stably to protect it from damage during operation.
[0007] This objective is achieved in an electrical connection terminal having a clamping spring and a metal component. In the connection terminal according to this invention, the connecting area of the clamping spring surrounds the fixed section of the metal component with an angle of α > 180°, wherein the connecting area of the clamping spring and the fixed section of the metal component extend arcuately. By making the angle of α surrounding or enclosing the fixed section of the metal component with the connecting area of the clamping spring greater than 180°, the clamping spring is rotatably held on the metal component while still preventing loss. By coaxially supporting the clamping spring on the metal component, the clamping spring can be removed from the metal component if necessary, parallel to the swing axis, by pulling the clamping spring out of the fixed section of the metal component with its connecting area parallel to the swing axis.
[0008] Even if the connecting area of the clamping spring and the fixing section of the metal part extend or are constructed in an arc shape, this does not necessarily mean that the inner diameter of the arc-shaped connecting area of the clamping spring must precisely match the outer diameter of the arc-shaped fixing section of the metal part. For example, it is conceivable that the outer diameter of the arc-shaped fixing section of the metal part is slightly smaller than the inner diameter of the arc-shaped connecting area of the clamping spring. However, the arc-shaped connecting area of the clamping spring and the arc-shaped fixing section of the metal part cooperate in such a way that the clamping spring can smoothly swing between its first position and its second position. Preferably, for this purpose, the arc-shaped connecting area of the clamping spring at least sectionally has an inner diameter that matches the outer diameter of the opposite section of the arc-shaped fixing section of the metal part.
[0009] Provided the geometry of the metal part allows for this, the clamping spring can be inserted into the fixed section of the metal part during assembly, parallel to the swing axis, through its connecting area. In this assembly of the clamping spring and the metal, the wrap angle α of the connecting area of the clamping spring can be significantly greater than 180°, i.e., almost 360°. However, in order to also achieve an installation direction of the clamping spring perpendicular to the swing axis on the metal part, the wrap angle α of the connecting area is preferably significantly less than 360°, and especially not greater than 240°. This allows the clamping spring to be pushed onto the fixed section of the metal part with the open side of the connecting area, wherein the connecting area of the clamping spring temporarily expands due to the spring elasticity of the clamping spring, and then springs back after accommodating the fixed section, thereby fixing the clamping spring in its position perpendicular to the swing axis on the metal part.
[0010] According to an advantageous design of the electrical connection terminal of this invention, the metal member has a stop section opposite to the contact section and two opposing sidewalls, wherein the two sidewalls connect the contact section and the stop section to each other. The metal member then has an approximately rectangular cross-section, wherein a conductor inlet opening is constructed at one end of the metal member. A fixing section of the metal member is adjacent to the stop section on one side of the conductor inlet opening. Apart from the fixing section, the metal member can be completely open on the end side where the conductor inlet opening is provided, so that the conductor inlet opening is laterally defined by the two sidewalls of the metal member.
[0011] In this box-shaped or frame-like construction of the metal component, compared to a U-shaped metal component, the metal component additionally has a stop section, on which the operating leg of the clamping spring can rest in the stop section in the second position of the clamping spring. This makes not only the metal component very stable in construction, but also reliably protects the clamping spring from damage in its closed second position. This is particularly advantageous when the connecting terminal does not use a housing to house the metal component and the clamping spring.
[0012] According to another advantageous design of the connecting terminal, the clamping spring can be locked or secured to the metal part in its second position. This has the advantage of preventing the clamping spring from unintentionally swinging to the open first position, thereby also preventing the electrical conductor connected to the connecting terminal from being unintentionally pulled out of the clamped position.
[0013] Preferably, the end of the clamping spring's operating leg away from the connecting area has a curved locking section that extends in the direction of the contact section of the metal part. Due to functional requirements, the clamping leg also extends in the direction of the contact section of the metal part, so the clamping spring generally has a roughly triangular shape, but unlike the clamping leg, the locking section terminates at a distance from the contact section of the metal part.
[0014] According to an advantageous design, a latch is constructed between the clamping spring, particularly its locking section, and the metal member, by which the clamping spring is secured in its second position. Various variations of this latch design are possible. According to an advantageous embodiment, at least one lateral protrusion is constructed on the locking section of the clamping spring, which, together with a latching protrusion, forms the latch, wherein the latching protrusion is constructed on the end side of the sidewall of the metal member opposite to the conductor inlet opening. Even though a latch construction with one protrusion and one latching protrusion is theoretically sufficient, the latch is preferably constructed with two protrusions laterally constructed on the locking section of the clamping spring and two corresponding latching protrusions, wherein a latching protrusion is constructed or bent on the end side of each sidewall of the metal member.
[0015] As mentioned at the beginning, the clamping spring is capable of shifting from a first position to a second position. The clamping spring can swing from the open first position to the closed second position simply by the user pressing the operating leg of the clamping spring with their finger or a tool, thereby causing the clamping spring to swing into its second position. However, preferably, a receiving portion for the operating tool is constructed on the clamping spring, such that the clamping spring can swing from the first position to its second position by inserting the tip of the operating tool into the receiving portion.
[0016] A particular advantage here is that the receiving portion is arranged and constructed in such a way that the clamping spring can be easily swung from the closed second position to its open first position by means of an operating tool. For this purpose, according to an advantageous design, the free end of the locking section of the clamping spring is bent outwards, thereby forming a receiving portion for the operating tool. For this purpose, the free end of the locking section can be bent at least 90°, preferably about 180°, thereby making it easier for the tip of the operating tool to be inserted into the receiving portion. Arranging the receiving portion at the free end of the locking section also has the advantage that the locking between the protrusions constructed on the locking section or its side and the locking protrusions on the sidewall of the metal part can be easily and with less force released.
[0017] If the free end of the locking section is not bent at approximately 180°, but rather at, for example, only 90°, a recess can be constructed in the bent end, which serves as a receiving portion for the operating tool. In this case, the lock between the locking section of the clamping spring and the metal part can also be easily released by inserting the tip of the operating tool into the recess and then swinging the operating tool.
[0018] As mentioned at the beginning, electrical connection terminals can be configured as so-called printed terminals to connect electrical conductors to a circuit board. In this case, at least one solder leg is formed on a metal component that can be inserted into a corresponding opening in the circuit board and then soldered to the circuit board. Typically, electrical connection terminals or metal components have multiple solder legs, or three or four solder legs, so that the connection terminal is reliably and stably fixed to the circuit board when the individual solder legs are inserted into the openings and soldered to the circuit board.
[0019] In a particularly preferred improvement of the connector terminal constructed as a printed terminal according to the present invention, a section is arranged on the end side of at least one sidewall of the metal member opposite the conductor inlet opening. This section extends substantially perpendicular to the plane of the sidewall toward the opposite sidewall, and at least one solder leg is formed on this section. Because the section extends from the sidewall in the direction of the opposite sidewall, it also extends substantially perpendicular to the insertion direction E of the conductor to be connected, thus constituting anti-interference protection against the conductor inserted into the conductor inlet opening. Since the solder leg is formed on this section, when the connector terminal is mounted on the circuit board, the section is fixed by inserting the solder leg into the corresponding opening on the circuit board and soldering it to the circuit board. This reliably prevents the section from being bent by a rigid conductor that is inserted too forcefully, thereby reliably ensuring the desired function of anti-interference protection.
[0020] If the metal component is constructed in a frame shape according to an advantageous design, thus having two opposing sidewalls, it is advantageous to arrange corresponding sections on each of the two sidewalls of the metal component, or to bend the corresponding sections so that the two sections extend toward each other. Here, at least one welding leg is also constructed on each of the two sections, so that the two sections together form a reliable anti-interception protection for the inserted conductor. Attached Figure Description
[0021] Other advantageous designs of the connecting terminal according to the present invention are described in the dependent claims. Specifically, there are various possibilities for designing and improving the connecting terminal according to the present invention. This is indicated by reference not only to the dependent claims but also to the following description of preferred embodiments in conjunction with the accompanying drawings. In the drawings,
[0022] Figure 1 A perspective view of a first embodiment of the connection terminal in the closed state is shown.
[0023] Figure 2 shows the side and rear views according to... Figure 1 The connection terminals,
[0024] Figure 3 The longitudinal section diagram shows the results based on Figure 1The connecting terminals with connected conductors,
[0025] Figure 4 The longitudinal section diagram shows the results based on Figure 1 A connection terminal in the open state with an inserted conductor.
[0026] Figure 5 A perspective view of a second embodiment of the connection terminal in the closed state is shown.
[0027] Figure 6 shows the side and rear views according to... Figure 5 The connection terminals,
[0028] Figure 7 The longitudinal section diagram shows the results based on Figure 5 The connecting terminals with connected conductors,
[0029] Figure 8 The longitudinal section diagram shows the results based on Figure 5 A connection terminal in the open state with an inserted conductor. Detailed Implementation
[0030] The attached diagram illustrates two variations of the electrical connection terminal 1, in which it is composed of a clamping spring 2 and a metal part 3, respectively. Both the clamping spring 2 and the metal part 3 can be constructed as simple stamped and bent parts, and it is not necessary to use the same materials for the clamping spring 2 and the metal part 3. More specifically, a material with good spring force can be used for the clamping spring 2, and a material with good electrical conductivity can be used for the metal part 3.
[0031] The clamping spring 2 has clamping legs 4, operating legs 5, and a connecting area 6 that connects the two legs 4 and 5 to each other. This connecting area also serves to support the clamping spring 2 on the metal part 3. The metal part 3 has at least one contact section 7, a fixing section 8, and a conductor introduction opening 9, wherein the clamping legs 4 and the contact section 7 form a clamping position 10 for the conductor 11 to be connected. Figure 3 and 7 ).
[0032] In two variations of the electrical connection terminal 1, the clamping spring 2 is pivotally supported at the metal part 3, thereby allowing the clamping spring 2 to move from... Figure 4 and 8The first open position shown in the figure swings to the second closed position shown in the remaining figures. In the first open position of the clamping spring 2, the electrical conductor 11 can be introduced into the clamping position 10 through the conductor introduction opening 9, without the clamping leg 4 having to overcome its spring force to deflect. The free end 12 of the clamping leg 4 is therefore spaced so far, or located above the contact section 7 of the metal part 3, that the stripped end of the electrical conductor 11 can be inserted into the metal part 3 below the free end 12 of the clamping leg 4.
[0033] In the second closed position of the clamping spring 2, the clamping leg 4 is deflected by the inserted conductor 11. Here, the conductor 11 is pressed from the free end 12 of the clamping leg 4 toward the contact section 7 of the metal part 3, thereby electrically connecting the conductor 11 to the contact section 7, or the metal part 3. In both variants, the connected conductor 11 is pressed directly against the contact section 7 of the metal part 3 by the clamping leg 4 of the clamping spring 2. However, it is also possible, unrelated to this, to arrange an additional separate current bar above the contact section 7 in the metal part 3, so that the introduced conductor 11 is pressed from the free end 12 of the clamping leg 4 toward the current bar, thereby forming a clamping position between the free end 12 of the clamping leg 4 and the separate current bar.
[0034] In the connecting terminal 1 according to this utility model, the clamping spring 2 is rotatably supported on the metal part 3 by means of an arc-shaped construction of the connecting region 6 of the clamping spring 2 and the fixing section 8 of the metal part 3, thereby forming a support pin for clamping the spring 2 or its connecting region 6. The axis of rotation of the clamping spring 2 thus extends coaxially with the axis of the fixing section 8 of the metal part 3. The connecting region 6 of the clamping spring 2 surrounds or encloses the fixing section 8 of the metal part 3 with an angle α greater than 180°, thereby preventing the clamping spring 2 from being lost while still rotatably holding it on the metal part 3.
[0035] In the two illustrated embodiments, the wrap angle α is approximately 210° to 230°. Thus, the clamping spring 2 is not only securely held on the metal part 3 to prevent loss, but can also be easily mounted on the metal part 3 by inserting the connecting region 6 of the clamping spring into the fixing section 8 of the metal part 3 in the insertion direction E of the electrical conductor 11. Here, due to the spring elasticity of the clamping spring 2, the connecting region 6 briefly widens until the fixing section 8 is completely accommodated by the connecting region 6 of the clamping spring 2, and the connecting region 6 springs back to its basic state shown in the figures.
[0036] Such as especially by Figure 3 and 4 as well as Figure 7 and 8It can be seen that the distance a or net width between the transition position of the connecting area 6 to the clamping leg 4 and the fixed section 8 of the opposite metal part 3 is less than the corresponding external dimension D of the fixed section 8.
[0037] As from Figure 1 and Figure 5 As can be seen from the comparison, these two implementation variations of the connecting terminal 1 are basically distinguished from each other only by the fact that the corresponding fixing sections 8 of the metal part 3 are constructed differently. Figures 1 to 4 In the first embodiment of the electrical connection terminal 1 shown, the fixing section 8 is constructed in a cylindrical shape; therefore, the fixing section 8 is circularly closed in cross-section. Conversely, in accordance with... Figures 5 to 8 In a second embodiment of the electrical connection terminal 1, the fixing section 8 is not completely closed in cross-section, but is constructed as the arc-shaped rolled-up end of the stop leg 13 of the metal part 3, wherein the fixing section 8 extends approximately 260° in cross-section.
[0038] In two variations of the electrical connection terminal 1, in addition to the contact section 7 and the fixing section 8, the metal part 3 also has a stop section 13 and two opposing sidewalls 14 and 15, so that the metal part 3 is constructed as a frame. The contact section 7 and the stop section 13 are connected to each other via the two sidewalls 14 and 15. For example, from... Figure 2a and 6a As can be seen, the operating leg 5 rests against the stop section 13 of the metal part 3 in the second position of clamping the spring 2. In addition, the fixing section 8 is connected to the stop section 13 on the side of the conductor inlet opening 9.
[0039] According to Figure 3 and 4 as well as Figure 7 and 8 As can be seen from the cross-sectional view, the clamping leg 4 extends at an acute angle relative to the operating leg 5. The clamping leg 4 is bent such that the angle β between the clamping leg 4 and the adjacent segment of the connecting area 6 is between 70° and 110°. In the two illustrated embodiments, when no electrical conductor 11 is inserted into the clamping position 10, and therefore the clamping leg 4 does not deflect against the spring force of the clamping spring 2, the angle β is approximately 90°.
[0040] To prevent the clamping spring 2 from unintentionally swinging from its second position to its first position when the electrical conductor 11 is connected, the clamping spring 2 is locked in its second position. This prevents the previously established electrical connection of the conductor 11 from unintentionally loosening. For this purpose, a locking section 16 is bent at the end of the operating leg 5 of the clamping spring 2 away from the connection area 6, and this locking section extends in the direction of the contact section 7 of the metal part 3. Furthermore, two lateral protrusions 17 are constructed on the locking section 16, which together with two locking protrusions 18 on the side walls 14, 15 form a lock, thereby holding the clamping spring 2 in the second position. For this purpose, the locking protrusions 18 are constructed on the end sides of the two side walls 14, 15 opposite to the conductor introduction opening 9. In the second position of the clamping spring 2, the protrusion 17 can engage behind the locking protrusion 18 on the end side of the sidewalls 14 and 15, thereby holding the clamping spring 2 in the closed second position (Figures 2 and 5).
[0041] To allow the clamping spring 2 to swing from the first position to the second position, and more particularly to swing from its second position to its first position, the free end of the locking section 16 is bent outward by approximately 180°, thereby forming a receiving portion 19 for the operating tool. If the tip of an operating tool, such as a screwdriver, is inserted into this receiving portion 19, a slight swinging motion of the operating tool can release the lock between the protrusion 17 and the locking protrusion 18, and swing the clamping spring 2 to the open first position. Figure 4 and Figure 7 )middle.
[0042] In the two embodiments shown in the attached figures, the electrical connection terminal 1 is configured as a printed terminal, which allows the electrical conductor 11 to be connected to a circuit board (not shown). For this purpose, multiple solder legs 20, 22, totaling four in this case, are constructed on the metal component. These solder legs can be inserted into corresponding openings in the circuit board and then soldered. By arranging the solder legs 20, 21 at the outer corners of the metal component 3, a particularly reliable fixation of the connection terminal 1 to the circuit board is ensured.
[0043] Two welding legs 21 are constructed on the side of the metal part 3 facing away from the conductor inlet opening 9. These two welding legs are respectively arranged on the section 22, which is bent from the sidewalls 14 and 15 such that the two sections 22 extend toward each other. These two sections 22 are thus oriented substantially perpendicular to the insertion direction E of the conductor 11 to be connected, thereby forming an anti-interference protection for the conductor 11 inserted into the conductor inlet opening 9. Since welding legs 21 are constructed on the two sections 22 respectively, when the connecting terminal 1 is mounted on the circuit board, the two sections 22 are fixed in their position by inserting the corresponding welding legs 21 into the corresponding openings in the circuit board and soldering them to the circuit board. This reliably prevents the sections 22 from bending or unfolding due to excessive or excessive insertion of the rigid conductor 11. These two sections 22 thus form a reliable stop and reliable anti-interference protection for the electrical conductor 11 to be connected.
[0044] and Figure 2b and Figure 6b As shown, it is also possible that, only at the end of one sidewall 14, 15, the corresponding segment 22 with one or more welded legs 21 is raised (abgehoben). It is also possible that, when the two segments 22 are constructed on the two sidewalls 14, 15, the dimensions of the segments are different, so the segments 22 do not necessarily have to be constructed symmetrically.
[0045] Explanation of reference numerals in the attached figures
[0046] 1 connection terminal
[0047] 2 clamping springs
[0048] 3 metal parts
[0049] 4. Clasp your legs together
[0050] 5. Controlling Legs
[0051] 6 connection areas
[0052] 7 contact sections
[0053] 8 fixed sections
[0054] 9. Conductor introduction opening
[0055] 10 Clamping positions
[0056] 11 conductors
[0057] 12. Free ends of clamping legs
[0058] 13 Stop Section
[0059] 14 sidewalls
[0060] 15 sidewalls
[0061] 16 locking sections
[0062] 17 protrusions
[0063] 18-card lock protrusion
[0064] 19 Accommodation Department
[0065] 20 welded legs
[0066] 21 welded legs
[0067] Section 22
Claims
1. An electrical connection terminal having a clamping spring (2) and a metal member (3), wherein the clamping spring (2) has a clamping leg (4), an operating leg (5), and a connection area (6) connecting the two legs (4, 5) to each other, wherein the metal member (3) has a contact section (7), a fixing section (8), and a conductor introduction opening (9), wherein, The clamping spring (2) is pivotally supported on the metal part (3), allowing the clamping spring (2) to move from an open first position to a closed second position. Furthermore, in the first position of the clamping spring (2), the electrical conductor (11) can be inserted into the clamping position (10) through the conductor introduction opening (9), while the clamping leg (4) does not need to deflect against its spring force, and in the second position of the clamping spring (2), it is electrically clamped between the end (12) of the clamping leg (4) and the contact section (7) of the metal part (3). Its features are, The connecting area (6) of the clamping spring (2) and the fixing section (8) of the metal part (3) extend in an arc shape, and The connecting area (6) of the clamping spring (2) wraps around the fixing section (8) of the metal part (3) with a wrap angle a>180°.
2. The electrical connection terminal (1) according to claim 1, characterized in that, The arc-shaped connecting area (6) of the clamping spring (2) has at least a partial inner diameter that matches the outer diameter of the opposite section of the arc-shaped fixing section (8) of the metal part (3).
3. The electrical connection terminal (1) according to claim 1, characterized in that, The clamping leg (4) of the clamping spring (2) is bent such that the angle b between the clamping leg (4) and the adjacent segment of the connecting area (6) is between 70° and 110°, especially between 80° and 100°.
4. The electrical connection terminal (1) according to claim 1, characterized in that, The metal part (3) has a stop section (13) opposite to the contact section (7) and two opposing sidewalls (14, 15) that connect the contact section (7) and the stop section (13) to each other, so that the metal part (3) has an approximately rectangular cross-section, and the fixing section (8) is adjacent to the stop section (13) on one side of the conductor inlet opening (9).
5. The electrical connection terminal (1) according to claim 1, characterized in that, The clamping spring (2) is able to lock onto the metal part (3) in its second position.
6. The electrical connection terminal (1) according to claim 4, characterized in that, The end of the operating leg (5) of the clamping spring (2) away from the connecting area (6) has a curved locking section (16) that extends toward the contact section (7) of the metal part (3).
7. The electrical connection terminal (1) according to claim 6, characterized in that, At least one lateral protrusion (17) is constructed on the locking section (16) of the clamping spring (2), and a locking protrusion (18) is constructed on the end side of at least one sidewall (14, 15) of the metal part (3) opposite to the conductor inlet opening (9), wherein, in the second position of the clamping spring (2), the at least one lateral protrusion (17) and the locking protrusion (18) form a lock.
8. The electrical connection terminal (1) according to claim 6, characterized in that, The free end of the locking section (16) of the clamping spring (2) bends outward, thereby forming a receiving portion (19) for manipulating the tool.
9. The electrical connection terminal (1) according to claim 4, characterized in that, The metal part (3) has at least one welding leg (20, 21), and a section (22) is arranged on the end side of at least one sidewall (14, 15) of the metal part (3) opposite to the conductor inlet opening (9). The section extends perpendicular to the plane of the sidewall (14, 15) toward the opposite sidewall (15, 14), and at least one welding leg (21) is formed on the section (22).
10. The electrical connection terminal (1) according to claim 9, characterized in that, On the two sidewalls (14, 15) of the metal part (3), a section (22) is arranged on the end side opposite to the conductor inlet opening (9), wherein the two sections (22) are bent from the respective sidewalls (14, 15) such that the two sections (22) extend toward each other, and welding legs (21) are respectively constructed on the two sections (22).