CN114552243A

CN114552243A - Terminal in the form of a distributor terminal box

Info

Publication number: CN114552243A
Application number: CN202111395342.4A
Authority: CN
Inventors: 托马斯·维特
Original assignee: Wago Verwaltungs GmbH
Current assignee: Wago Verwaltungs GmbH
Priority date: 2020-11-25
Filing date: 2021-11-23
Publication date: 2022-05-27
Also published as: DE102020128775B4; DE102020128775A1

Abstract

The invention relates to a connecting terminal in the form of a distributor terminal box, comprising: a housing having a plurality of wire introduction openings; and spring force clamping terminals which are arranged in the housing and are accessible via the conductor insertion openings for connecting the electrical conductors, wherein the spring force clamping terminals are electrically conductively connected to one another via the busbar arrangement.

Description

Terminal in the form of a distributor terminal box

Technical Field

The invention relates to a connection terminal in the form of a distributor terminal box, comprising: a housing having a plurality of wire introduction openings; and a spring force clamping terminal which is arranged in the housing and is accessible via the conductor insertion opening for connecting an electrical conductor, wherein the spring force clamping terminals are electrically conductively connected to one another via a busbar arrangement.

Background

Such a terminal is known from EP 2456011B 1.

Disclosure of Invention

The object of the invention is to further develop such a terminal.

This object is achieved by a terminal having the features of the invention.

The distributor box serves to distribute electrical signals or electrical energy fed to the distributor box via electrical lines, which are usually of smaller cross section than the electrical lines carrying the signals or electrical energy, to electrical lines likewise connected to the distributor box.

According to feature a), at least one clamping spring of the spring force clamping terminal is supported via a supporting pin, the head section of which ends in a spring bow of the clamping spring and extends to a supporting point at the housing, which supporting point is located outside the spring bow, wherein the supporting pin has a tapering region between its head section and supporting point, in which tapering region the cross section of the supporting pin is smaller than at the head section and at the supporting point. The support pin can in this way have the shape of a "bone". By means of the tapered region, an additional movement gap is provided for one or more clamping legs of the clamping spring, so that said clamping legs can be deflected further before striking the supporting pin. This allows, for example, the clamping spring to be designed with a curved or arched shape, which in turn facilitates the button actuation.

According to feature b), at least one clamping spring of the spring force clamping terminal is supported via a supporting pin which branches off in a fork-like manner into a plurality of end sections towards the clamping spring, wherein the spring bow of the clamping spring is accommodated and supported between at least two end sections and/or at least one end section passes through a recess of the clamping spring, in particular a recess in the spring bow of the clamping spring. Thereby further improving the possibility of supporting the clamping spring via the support pin. The spring clip can be surrounded by two end sections, for example, and supported by the end sections in the wire insertion direction and transversely to the wire insertion direction, i.e., in the lateral direction. Alternatively or additionally, the support of the clamping spring can be further improved by an intermediate end section which passes through a recess in the spring bow of the clamping spring. Thereby, the clamp spring, especially the W-shape, can be reliably supported by the support pin.

According to feature c), the busbar arrangement has at least a first busbar section and a second busbar section as separate components, wherein the first busbar section and the second busbar section are mechanically and electrically connected to one another via a locking connection and/or a clamping connection. This allows a quick and simple mounting of the bus bar arrangement in the housing. The assembly of the components of the busbar arrangement can also be carried out quickly and simply, in particular without tools. In this way, the terminal can be realized by simply mounting the member in only one mounting direction.

According to feature d), the busbar arrangement has at least a first busbar section and a second busbar section as separate components, wherein the first busbar section and the second busbar section each have at least one flat section with at least one conductor lead-through opening for the purpose of leading through an electrical conductor to be clamped on the associated spring force clamping terminal. In this way, a substantially plate-shaped bus bar arrangement can be achieved, which, when simply installed in the housing, furthermore allows a simple construction of the spring force clamping terminal. In this case, the respective line feed-through opening, in particular the edge of such a line feed-through opening, can form such a spring-force clamping terminal in the connection of the clamping spring, in particular the clamping leg of the clamping spring, associated with the line feed-through opening.

According to feature e), the housing is formed at least in two parts from a first housing part and a second housing part, wherein the busbar arrangement is arranged at least partially or completely in a separating plane between the first housing part and the second housing part. The mounting of the terminal can thereby be designed more advantageously. Thus, one of the housing parts can serve as a holding device for the bus bar arrangement during mounting. The clamping spring can be fixed to the busbar arrangement or to the busbar arrangement when the busbar arrangement is placed on the housing part. Finally, a further housing part can be fitted over the device to close the housing.

The invention thus allows the terminal to be realized with a simple, compact construction, simple mounting and mounting of the component in only one mounting direction. The connecting terminal has only relatively few simple components, so that the assembly is less complicated. Furthermore, the connecting terminal can be realized at low cost. The above-mentioned features a), b), c), d), e) can be realized in each case individually or in any desired combination with one another.

For example, the housing can be designed as a substantially square housing. The housing can be formed in exactly two parts, i.e. only the first housing part and the second housing part. The first housing part can be connected to the second housing part, for example, via a locking connection.

According to an advantageous embodiment of the invention, it is provided that the flat sections of the first busbar section and of the second busbar section are arranged offset from one another in different spatial planes. In this way, the busbar arrangement can be adapted to the space requirement of the respective spring force clamping terminal, in particular with regard to the size of the clamping spring required due to the different wire cross sections to be clamped on the first busbar section and the second busbar section. For example, all the conductor insertion openings of the connection terminals can be arranged on the same housing side, which thus forms the conductor connection side of the housing. The flat section of the first busbar section can be arranged closer to the conductor connection side than the flat section of the second busbar section. The flat section of the first busbar section is oriented parallel to the flat section of the second busbar section.

According to an advantageous embodiment of the invention, it is provided that the offset is greater than the thickness of the first busbar section and/or the second busbar section. Accordingly, the flat sections of the first and second busbar sections are not only slightly offset from one another, but also lie in an order of magnitude which is able to take into account the different space requirements of the spring force clamping terminals. For example, the offset can be at least 10%, at least 20%, or at least 50% greater than the thickness of the first busbar section and/or the second busbar section.

According to an advantageous embodiment of the invention, the line insertion openings have at least one line insertion opening with a large cross section and a plurality of line insertion openings with a small cross section, the number of line insertion openings with a small cross section being greater than the number of line insertion openings with a large cross section, wherein the line insertion openings with a large cross section have a larger cross section than the line insertion openings with a small cross section. In this way, the available area on the housing conductor connection side can be utilized as well as possible. Thus, only a small wire lead-in opening is required for connecting a wire having a small cross section. The larger space requirement of the wire connection side for at least only one wire lead-through opening of large cross section therefore requires only one or at least only a few.

According to an advantageous embodiment of the invention, it is provided that the first busbar section is suitable for clamping an electrical line having a first line cross section and the second busbar section is suitable for clamping at least one electrical line having a second line cross section, wherein the second line cross section is larger than the first line cross section. For example, the second wire cross section can be at least twice as large as the first wire cross section. Accordingly, the line insertion openings in the first bus section can be smaller than the one or more line insertion openings in the second bus section.

In this case, it is advantageous if the first busbar section is associated with a spring-force clamping terminal of a wire insertion opening of small cross section, while the second busbar section is associated with at least one wire insertion opening of large cross section. For example, the cross section of the at least one wire introduction opening of large cross section can be at least twice as large as the cross section of the wire introduction opening of small cross section.

According to an advantageous embodiment of the invention, it is provided that the first busbar section has a connecting section angled to the flat section, which is designed for mechanical and electrical connection to the second busbar section. This allows the first busbar section to be simply connected to the second busbar section via the locking connection and/or the clamping connection. In this case, the mounting can advantageously take place in only one mounting direction, for example from above onto the first housing part. For example, the first busbar section can have an L-shaped or U-shaped cross section. In the case of a U-shaped cross section, the first busbar section can have, for example, sections parallel to the connecting section.

According to an advantageous embodiment of the invention, it is provided that the second busbar section is formed in a U-shaped cross section. The second busbar section can thus be mechanically robustly formed with two bearing surfaces spaced apart from one another. Due to the U-shape, the second busbar section can also be mechanically and electrically locked and/or clamped with the first busbar section at least two points, for example at the two legs of the U-shape that are angled to the flat section.

According to an advantageous embodiment of the invention, the support pin extends through a wire passage opening of the busbar arrangement. In this way, the supporting pin divides the common lead-through opening, through which the supporting pin extends, into two connection regions for the electrical leads, which are separate from one another. The electrical lines can be connected to the busbar arrangement on separate connection regions formed on one side and the other side of the supporting pin, respectively.

According to an advantageous embodiment of the invention, the busbar arrangement has a common line feed opening for at least one pair of spring force clamping terminals, in which a clamping spring with two clamping legs is arranged. In this way, a plurality of pairs of spring force terminals can be realized particularly simply and inexpensively. The support pins can extend through a common wire feed opening.

According to an advantageous embodiment of the invention, the two clamping legs of the clamping spring are connected to one another by a spring bracket. The spring bow is thus arranged between the two clamping legs. The spring clip can, for example, rest on the bearing pin or be supported thereon, in particular on its head section.

According to an advantageous embodiment of the invention, the connecting terminal has, at least for a plurality or all of the small-cross-section conductor connection openings, corresponding conductor insertion openings in the busbar arrangement, in which the spring-force clamping terminals are each formed in pairs by means of double-sided clamping springs, which have two clamping legs.

According to an advantageous embodiment of the invention, the clamping spring is designed symmetrically. In this way, the same spring and clamping properties are provided on both of the spring force clamping terminals realized in pairs.

According to an advantageous embodiment of the invention, it is provided that the bearing point of the bearing pin is located outside the region enclosed by the clamping spring. The support pin can be supported, for example, on one of the at least two housing parts of the housing, in particular on the housing part facing away from the wire connection side. Thereby also providing a sufficiently large wire receiving cavity for the corresponding spring force clamping terminal.

According to an advantageous embodiment of the invention, the support pin is formed integrally with at least a part of the housing. The support pin can be produced, for example, in a plastic injection molding process with a part of the housing. This has the following advantages: the support pins do not exist as separate members and do not have to be separately installed. Due to the production of the housing part, the supporting pins are already arranged in the desired, correct locations.

Alternatively, the support pin can also be formed in multiple parts or as a part separate from the housing. The support pins can be made of plastic, metal, or another material. The support pin may be formed as part of the bus bar device or may be connected to the bus bar device.

The housing of the connection terminal, in particular the second housing part, can have an associated operating channel for each spring force clamping terminal, in which operating channel an operating element, for example an operating button, is arranged for opening the clamping point of the spring force clamping terminal. In an advantageous embodiment, a manual actuation surface of the actuation button can be provided on the wire connection side of the connection terminal. This allows simple manipulation of the spring force clamping terminal to introduce and remove electrical leads.

According to an advantageous embodiment of the invention, the clamping spring is formed in a W-shape with a first, a second and a third spring bow. By means of a clamping spring designed in this way, the two clamping legs can be deflected independently of one another or at least largely independently of one another. In other words, the forces occurring are not or at least less transmitted to the respective other clamping leg due to the deflection of one clamping leg.

According to an advantageous embodiment of the invention, a second spring bracket is arranged between the first spring bracket and the third spring bracket, wherein the second spring bracket has a recess through which at least one end section of the support pin passes. This has the following advantages: the clamping spring can be intermediately supported by the support pin. Due to the intermediate support, the regions laterally lying beside them remain free for the arrangement of the electrical lines to be clamped. The recess in the second spring bow can be designed, for example, in the form of a slit.

According to an advantageous embodiment of the invention, it is provided that the supporting pin, which is forked into a plurality of end sections, has at least one intermediate end section, which is surrounded by two outer end sections. In this way, a particularly secure support of the W-shaped clamping spring is achieved. The outer end sections can be configured to be more flexible than the middle end sections, for example. The outer end sections can be, for example, web-like sections which project laterally next to the central end section. The outer end section can be longer than the middle end section, i.e. beyond the middle end section in the longitudinal direction.

Drawings

The invention is explained in detail below on the basis of embodiments with the aid of the figures. The figures show:

fig. 1 shows a perspective view of the connection terminal, and

fig. 2 shows the connecting terminal according to fig. 1 in a plan view on the wire connection side, and

FIG. 3 shows a perspective view of the bus bar device, and

FIG. 4 shows a side view of the bus bar arrangement according to FIG. 3, and

fig. 5 shows the busbar arrangement according to fig. 3 with clamping springs arranged thereon, and

fig. 6 shows a cross-sectional view a-a of the connection terminal according to fig. 2, and

fig. 7 shows a cross-sectional view B-B of the connection terminal according to fig. 2, and

fig. 8 shows a cross-sectional view C-C of the connection terminal according to fig. 2, and

fig. 9 shows another embodiment of the connecting terminal in a plan view on the wire connection side, and

fig. 10 shows a cross-sectional view a-a of the connection terminal according to fig. 9, and

fig. 11 shows a cross-sectional view B-B of the connection terminal according to fig. 9, and

FIG. 12 shows a side view of a W-shaped clamping spring, an

FIG. 13 shows a plan view of the arrangement of the W-shaped clamping spring, and

fig. 14 shows a perspective view of the second housing part and the busbar arrangement of the embodiment of fig. 9.

Detailed Description

Fig. 1 shows a connection terminal 1 in the form of a distributor block, which has a housing 2 with a plurality of

conductor insertion openings

20, 21. In the exemplary embodiment, all the

conductor insertion openings

20, 21 are arranged on the conductor connection side 24 of the housing 2. Furthermore, the operating element 5 extending into the interior of the housing 2 is accessible from the outside from the wire connection side 24. The spring force clamping terminal provided in the housing 2 can be manually operated via the operating element 5. Electrical lines can be introduced into the housing 2 through the

line introduction openings

20, 21 and clamped on the spring force clamping terminals.

Fig. 2 shows the connecting terminal 1 in a plan view of the wire connection side 24. It can be seen that the wire lead-in

openings

20, 21 have different dimensions, i.e. different cross-sections. In the embodiment shown, there are a plurality (here 6) of small-cross-section wire introduction openings 20 and one large-cross-section wire introduction opening 21. Due to its size, only the electrical conductor with a small cross section is introduced into the conductor introduction opening 20 with a small cross section compared to the conductor introduction opening 21 with a large cross section. The large-cross-section line insertion opening 21 serves for connecting large-cross-section electrical lines, via which electrical energy or electrical signals are fed into or discharged from the connecting terminal 1.

As can also be seen from fig. 1 and 2, the coupling element 26 can be arranged on the outside of the housing 2, for example on the second housing part 23, for example by integrally molding the coupling element 26 on the respective housing part. The housing 2 can have a counterpart corresponding to the coupling element 26 on the housing side opposite the coupling element 26. For example, if the coupling element 26 can be designed as a projecting pin or locking element, the counterpart on the opposite housing side can be designed as a recess or recess in the housing. By means of the coupling element 26 connected to its counterpart, the plurality of connecting terminals 1 can be connected to one another on the outside of the housing in a form-fitting manner to form a power distributor bar.

The connection terminal 1 has a housing 2 and a busbar arrangement 3, which are shown in fig. 3 and 4, the busbar arrangement 3 being shown in a separated, unconnected state. The busbar arrangement 3 has a first busbar section 31 and a second busbar section 32. The first busbar section 31 has a flat section 33 in which a plurality of wire lead-through openings 30 are present. The line feed-through opening 30 extends through the material of the first busbar section 31 in the form of an elongated or slit-shaped opening. On the respective opposite end sides, for example the narrow sides, of the conductor lead-through openings 30 of the first busbar section 31, respective contact tongues 35 of the material of the first busbar section 31 are molded, for example by means of a stamping-bending process. The contact tongues 35 together with one clamping leg each of the clamping springs form a clamping point for the electrical conductor and thus form a spring-force clamping terminal.

The first busbar section 31 has a connecting section 36 which is angled with respect to the flat section 33 and is formed in the form of two connecting tongues spaced apart from one another. In a side view, the first busbar section 31 therefore has an L-shaped cross section.

The second busbar section 32 has a flat section 34. In the flat section 34, a wire lead-through opening 30 is present. A contact tongue 35 for clamping the electrical line is formed at least at one end of the line feed-through opening 30. The contact tongue 35 can be formed integrally with the second busbar section 32. A contact web 37, which serves as a connecting element for mechanically and electrically connecting the second busbar section 32 to the first busbar section 31, projects from the flat section 34, for example, at right angles. For example, the contact web 37 can have a guillotine-like contact region. The connecting tongues of the connecting sections 36 can have fork-shaped contact-like regions which can be connected to the knife-like contact-like regions of the contact webs 37, for example in the case of a releasable locking connection and/or, for example, a releasable clamping connection. The cross section of the second busbar section 32 is thus formed in a U shape, wherein the contact webs project from the legs angled to the flat section 34.

Fig. 5 shows the busbar arrangement 3 in a state in which the first busbar section 31 is connected to the second busbar section 32 via a latching and/or clamping connection, wherein the guillotine-like contact-like region of the contact web 37 of the second busbar section 32 is introduced into the fork-like contact-like region of the connection section 36 of the first busbar section 31. Furthermore, the second clamping spring 6 is inserted into the wire passage opening 30 of the second busbar section 32. The second clamping spring 6 has a support leg 61, a spring bow 62 following the support leg 61 and a clamping leg 63 following the spring bow 62. The free ends of the clamping legs 63 together with the contact tongues 35 form clamping points for the electrical lines. The second clamping spring 6 is supported on the second busbar section 32 via a bearing leg 61.

Furthermore, a first clamping spring 4 can be seen, which is inserted into one of the conductor lead-through openings 30 of the first busbar section 31. The first clamping spring 4 is designed as a double-sided clamping spring having two clamping legs 43 which are connected to one another via a connecting region 41. A spring bracket 42 is formed in the connecting region 41. The respective clamping leg 43 forms a clamping point for the electrical line together with the respective associated contact tongue 35.

Fig. 6 shows the connecting terminal 1 in a sectional plane a-a marked in fig. 2. It can be seen that the housing 2 has a first housing part 22 and a second housing part 23. The first and

second housing parts

22, 23 are designed as separate components, which are connected to one another, for example, via a locking connection. The busbar arrangement 3, in particular the first busbar section 31 in this case, is arranged in the separating plane between the first housing part 22 and the second housing part 23.

The support pin 7 is, for example, integrally molded on the second housing member 23. The support pin 7 extends from a support point 73, at which it is connected to the second housing part 23, toward the spring bow 42 of the first clamping spring 4. Starting from the support point 73, the support pin 7 initially has a relatively solid base section 70, which merges into a tapering region 71. The tapered region 71 transitions into a head section 72, which ends at the spring bow 42. The spring bow 42 thereby at least partially surrounds or encloses the head section 72. It can be seen that the cross section of the supporting pin 7 in the tapered region 71 is smaller than in the head section 72 and the base section 70.

Fig. 7 shows the connecting terminal 1 in a sectional plane B-B marked in fig. 2. The position of the busbar arrangement 3 in the housing 2 can be seen here. It can also be seen that the

flat sections

33, 34 of the first and

second busbar sections

31, 32 have an offset V from one another, so that they are arranged in different spatial planes.

As can also be seen in fig. 7, the components can be combined in a simple manner in one piece in a mounting direction which extends perpendicularly to the

flat sections

33, 34 of the first and

second busbar sections

31, 32. For example, the pre-mounted bus bar device 3 is placed onto the second housing part 23. Finally, the first housing part 22 is added and locked with the second housing part 23. Advantageously, the bus bar arrangement can also be engaged in the same mounting direction as seen, in such a way that: the first and

second busbar sections

31, 32 engage in the same mounting direction as the clamping springs 4, 6 are inserted into the wire lead-through opening 30.

Fig. 8 shows the connecting terminal 1 in a sectional plane C-C marked in fig. 2. This describes, in particular, a locking and/or clamping connection between the first busbar section 31 and the second busbar section 32. It can be seen that the fork-shaped contact-like region on the connecting tongue of the connecting section 36 connects with the knife-like contact-like region of the contact web 37.

Fig. 9 shows a further embodiment of the connecting terminal 1 in a plan view of the wire connection side 24.

Fig. 10 shows the connecting terminal 1 according to fig. 9 in a sectional view in the sectional plane a-a marked in fig. 9. It can be seen that the housing 2 has a first housing part 22 and a second housing part 23. The first and

second housing parts

22, 23 are designed as separate components, which are connected to one another, for example, by a locking connection. The busbar arrangement 3, in particular the first busbar section 31 in this case, is arranged in the separating plane between the first housing part 22 and the second housing part 23.

The clamping spring 4 is in this case designed in a W-shape. As in the exemplary embodiment already described, the clamping spring in turn has two clamping legs 43, so that two clamping points are formed. One clamping leg 43 merges via the connecting region 41 into the first spring clip 42 a. The first spring bow 42a transitions into an oppositely curved second spring bow 42 b. The second spring leg 42b merges into a third spring leg 42c, which is again bent in the opposite direction. The third spring bow 42c merges via the connecting region 41 into the other clamping leg 43. The middle second spring bow 42b has a recess.

The support pin 7 is, for example, integrally molded on the second housing member 23. The supporting pin 7 branches off from the base section 70 into a plurality of

end sections

74, 75 toward the clamping spring 4. The middle end section 74 is surrounded by two outer end sections 75.

In this exemplary embodiment, the supporting pin 7 passes through a recess in the second spring bow 42b via an intermediate end section 74. The web-like outer end sections 75 project to the left and right of the central end section 74, said outer end sections projecting into the respective first and

third spring bow

42a, 42c of the clamping spring 4. The outer end sections 75 are each connected to the intermediate end section 74 or the base section 70 of the support pin below the second spring bow 42b of the clamping spring 4. The outer end section 75 fixes the clamping spring 4 to the second spring bracket 42b from the outside. Additionally, the intermediate end section 74 secures the second spring clip 42b in its recess from the inside.

It can also be seen that the intermediate end section 74 can have, at least over a part of its longitudinal extent, an internal cavity into which the projection 25 molded on the first housing part 22 extends.

Fig. 11 shows the connecting terminal 1 according to fig. 9 in a sectional view in a sectional plane B-B indicated in fig. 9. In this case, the supporting pin 7 is designed without an outer end section 75, that is to say only an intermediate end section 74 is present, which passes through a recess in the second spring bow 42B. Here, the intermediate end section 74 can again have an internal cavity at least over a part of its longitudinal extension, into which the projection 25 molded on the first housing part 22 extends. .

Fig. 12 shows a side view of a W-shaped clamping spring 4, and fig. 13 shows an arrangement of a plurality of such W-shaped clamping springs 4 in a plan view. In this view, the recess 44 in the second spring bow 42b is visible in particular.

Fig. 13 shows the arrangement of the second housing part 23 and the first busbar section 31 with the corresponding W-shaped clamping spring 4. It can be seen that the respective intermediate end section 74 of the supporting pin 7 can have different shapes, wherein optionally a cavity for accommodating the interior of the projection 25 and/or a tapered region 71 can be present between the head section 72 and the supporting point 73.

List of reference numerals

1 connecting terminal

2 casing

3 bus bar device

4 clamping spring

5 operating element

6 clamping spring

7 support pin

20 small cross-section lead wire lead-in opening

21 large cross-section wire lead-in opening

22 first housing part

23 second housing part

24 wire connection side

25 protrusions on the first housing part

26 coupling element

30 wire lead-through opening

31 first busbar section

32 second busbar section

33 flat section

34 flat section

35 contact tongue

36 connecting section

37 contact connection board

41 connection region

42 spring bow

42a first spring bow

42b second spring bow

42c third spring bow

43 clamping leg

44 recess in second spring bow

61 support leg

62 spring bow

63 clamping leg

70 base section

71 tapered region

72 head section

73 supporting part

74 intermediate end section

75 outer end section

V offset

Claims

1. A terminal (1) having: a housing (2) having a plurality of wire introduction openings (20, 21); and spring force clamping terminals which are arranged in the housing (2) and are accessible via the conductor insertion openings (20, 21) for connecting electrical conductors, wherein the spring force clamping terminals are connected to one another in an electrically conductive manner via a busbar arrangement (3), characterized by one, more or all of the following features a), b), c), d), e):

a) at least one clamping spring (4) of a spring force clamping terminal is supported via a support pin (7), the head section (72) of which ends in a spring bow (42) of the clamping spring and extends to a support point (73) which is located outside the spring bow (42), wherein the support pin (7) has a tapering region (71) between its head section (72) and the support point (73), in which tapering region the cross section of the support pin (7) is smaller than at the head section (72) and the support point (73),

b) at least one clamping spring (4) of the spring force clamping terminal is supported via a supporting pin (7) which branches off fork-shaped into a plurality of end sections (74, 75) towards the clamping spring (4), wherein a spring bow of the clamping spring (4) is accommodated and supported between at least two ends (74, 75) and/or at least one end section (74, 75) passes through a recess of the clamping spring (4), in particular a recess in the spring bow of the clamping spring (4),

c) the busbar arrangement (3) has at least a first and a second busbar section (31, 32) as separate components, wherein the first and second busbar sections (31, 32) are mechanically and electrically connected to each other by means of a locking and/or clamping connection (36, 37),

d) the busbar arrangement (3) comprises at least a first busbar section (31) and a second busbar section (32) as separate components, wherein the first and second busbar sections (31, 32) each comprise at least one flat section (33, 34) having at least one conductor insertion opening (30) for inserting an electrical conductor to be clamped to an associated spring force clamping terminal,

e) the housing (2) is formed at least in two parts from a first and a second housing part (22, 23), wherein the busbar arrangement (3) is arranged at least partially or completely in a separating plane between the first and second housing parts (22, 23).

2. A terminal according to claim 1, characterized in that the flat sections (33, 34) of the first and second busbar sections (31, 32) are arranged in different spatial planes with an offset (V) to each other.

3. A terminal according to claim 2, characterized in that the offset (V) is greater than the thickness of the first and/or second busbar section (31, 32).

4. A terminal according to any one of the preceding claims, characterised in that the wire lead-in openings (20, 21) have at least one wire lead-in opening (21) of large cross section and a plurality of wire lead-in openings (20) of small cross section, the number of which is greater than at least one wire lead-in opening (21) of large cross section, wherein the at least one wire lead-in opening (21) of large cross section has a larger cross section than the wire lead-in openings (20) of small cross section.

5. A terminal block according to any one of the preceding claims, characterised in that the first busbar section (31) is adapted to clamp an electrical conductor having a first conductor cross section and the second busbar section (32) is adapted to clamp at least one electrical conductor having a second conductor cross section, wherein the second conductor cross section is larger than the first conductor cross section.

6. A terminal according to any one of the preceding claims, characterised in that the first busbar section (31) has a connecting section (36) angled to the flat section (33), which connecting section is designed for mechanical and electrical connection to the second busbar section (32).

7. A terminal block according to one of the preceding claims, characterised in that the second busbar section (32) is U-shaped in cross section.

8. A terminal block according to any one of the preceding claims, characterised in that the supporting pin (7) extends through a wire lead-through opening (30) of the busbar arrangement (3).

9. A terminal block according to one of the preceding claims, characterised in that the busbar arrangement (3) has a common conductor lead-through opening (30) at least for a pair of spring force clamping terminals, in which common conductor lead-through opening a clamping spring (4) with two clamping legs (43) is arranged.

10. A terminal according to claim 9, characterized in that the two clamping legs (43) of the clamping spring (4) are connected to one another by a spring bow (42).

11. A terminal according to one of claims 9 to 10, characterised in that the clamping spring (4) is of symmetrical design.

12. A terminal block according to any one of the preceding claims, characterised in that the support location (73) of the support pin (7) is located outside the area enclosed by the clamping spring (4).

13. A terminal according to any one of the preceding claims, characterised in that the supporting pin (7) is formed in one piece with at least a part of the housing (2).

14. A terminal according to one of the preceding claims, characterised in that the clamping spring (4) is formed in a W-shape with a first, a second and a third spring bow (42a, 42b, 42 c).

15. The connection terminal according to claim 14, characterized in that the second spring bow (42b) is arranged between the first spring bow (42a) and the third spring bow (42c), wherein the second spring bow (42b) has a recess through which at least one end section (74, 75) of the support pin (7) passes.

16. A connection terminal according to one of the preceding claims, characterized in that the supporting pin (7) which branches fork-like into a plurality of end sections (74, 75) has at least one intermediate end section (74) which is surrounded by two outer end sections (75).

17. A terminal according to any one of the preceding claims, characterised in that the terminal (1) is in the form of a distributor block.

18. A terminal strip according to any preceding claim, characterised in that the support location (73) is located on the housing (2).