Connection terminal in form of power distribution terminal block

Abstract

The invention relates to a connection terminal in the form of a distribution terminal block, comprising a housing having a plurality of conductor insertion openings, and a spring-loaded clamping terminal for connecting an electrical conductor, said spring-loaded clamping terminal being arranged in the housing and being accessible via the conductor insertion openings, wherein at least one first spring-force clamping terminal is configured for connecting a large-cross-section electrical line via which an electrical signal can be fed into the connection terminal, and a plurality of second spring-force clamping terminals are provided, which are configured for connecting a small-cross-section electrical line via which an electrical signal can be fed into the connection terminal, the conductor cross-section of the small-cross-section electrical conductor is significantly smaller than the conductor cross-section of the large-cross-section electrical conductor, wherein the first spring-force clamping terminal and the second spring-force clamping terminal are electrically conductively connected to each other via a busbar arrangement.

Description

Technical Field

[0001] The present invention relates to a connecting terminal in the form of a power distribution terminal block, wherein the power distribution terminal block has a housing and a spring force clamping terminal for connecting an electrical conductor, wherein the housing has a plurality of wire introduction openings, wherein the spring force clamping terminal is arranged in the housing and can be accessed via the wire introduction openings, wherein at least one first spring force clamping terminal is configured to connect an electrical conductor with a large cross-section, and an electrical signal can be fed into the connecting terminal via the electrical conductor with a large cross-section, and there are a plurality of second spring force clamping terminals, wherein the second spring force clamping terminals are configured to connect an electrical conductor with a small cross-section, and the conductor cross-section of the electrical conductor with a small cross-section is significantly smaller than the conductor cross-section of the electrical conductor with a large cross-section, wherein the first spring force clamping terminal and the second spring force clamping terminal are conductively connected to each other via a busbar device. Background Art

[0002] Such a connecting terminal is known from EP 2 456 011 B1. Summary of the invention

[0003] The invention is based on the object of further improving such a connecting terminal.

[0004] The object is achieved in the case of a terminal block of the type mentioned at the beginning by: the terminal block is modularly constructed, wherein the terminal block has at least one feed module and a plurality of distribution modules plugged together to form a distribution block, the feed module includes at least one first spring force clamping terminal, at least one second spring force clamping terminal is respectively arranged in the plurality of distribution modules, wherein the feed module and each distribution module respectively have their own housing sections, wherein the housing of the terminal block is formed by the housing section of the feed module and the housing section of the distribution modules plugged together. This modularly constructed distribution terminal block has the following advantages: the distribution terminal block can be flexibly configured by the manufacturer or the end user in terms of its connection feasibility. In particular, it is possible to freely select how many distribution modules are plugged together to form a distribution block. In this way, the distribution terminal block can be optimally matched to the corresponding usage.

[0005] In terms of production, advantages result from the use of identical components in the distribution modules and reduced warehouse management for different variants of the distribution terminal block, as is required in non-modular distribution terminal blocks according to the prior art. Advantageously, a distribution terminal block according to the invention can be provided that is fully compatible with conventional distribution terminal blocks in terms of electrical connection values. In particular, the full rated current fed into the busbar arrangement via the feed module can be directed to the last distribution module.

[0006] The distribution terminal block is used to distribute the electrical signal or electrical energy fed into the distribution terminal block via the electrical line to a plurality of electrical lines also arranged at the distribution terminal block, and the electrical line usually has a smaller cross-section than the electrical line that transmits the electrical signal or electrical energy. In the distribution terminal block according to the present invention, the transmitted electrical line is connected to the feed module, and the small cross-section electrical wire that continues to guide the transmitted electrical energy or signal is connected to the spring force clamping terminal of the distribution module. Here, the feed module can be plugged into the first distribution module of the distribution block in the same way as the distribution modules can be plugged into each other. The same plug connection technology can be used.

[0007] The feed module can in particular have only one first spring force clamping terminal. The distribution modules can be designed identically or differently. The distribution module can, for example, have one spring force clamping terminal or two spring force clamping terminals symmetrically arranged relative to the center plane of the distribution module. The distribution module can also have a number of spring force clamping terminals greater than two. For example, in the arrangement direction of the distribution module, one, two or more spring force clamping terminals can be present side by side in the distribution module. In particular, the system can include distribution modules having housing sections of different widths in the arrangement direction. It is also conceivable that the system contains only one type of distribution modules that are all designed identically.

[0008] The spring force clamping terminal can, for example, have a clamping spring or be designed as such a clamping spring. The clamping spring can, for example, be suspended on a busbar section of the corresponding module, i.e., a feed module or a distribution module, for example, in an opening of the busbar section. The busbar section of the distribution module can also have a type of clamping holder to accommodate one or more clamping springs of the spring force clamping terminal, or be designed integrally with such a clamping holder.

[0009] For example, different from other types of terminal blocks, the distribution terminal block is characterized by a block-shaped, substantially prismatic housing. On the connection side of the housing, the housing shape can be designed slightly differently from the pure prismatic shape, for example, in a trapezoidal shape in a side view.

[0010] According to an advantageous design of the present invention, the power distribution modules each have a busbar section that is at least mostly arranged in a corresponding housing section of the power distribution module, and the busbar section forms a part of the busbar device of the power distribution terminal block. As a result, the power distribution module is also modularly constructed in terms of the current transmission component, that is, the busbar device.

[0011] According to an advantageous design of the present invention, the busbar sections of adjacent distribution modules are electrically contacted with each other, respectively, in the following manner: the distribution module has at least one connection end contact portion extending from the housing section at the first housing side of its housing section, and the adjacent distribution module has at least one connection opening on the second housing side of its housing section facing the first housing side, and the connection end contact portion of another distribution module plugged into the adjacent distribution module is plugged through the connection opening and electrically contacted with the busbar section of the adjacent distribution module. This allows the distribution modules to be simply plugged together laterally to form a distribution block according to the type of plug-in system.

[0012] Therefore, the distribution block formed in the described manner has at least one connection end contact extending from the housing section of its distribution module. The connection end contact can then be plugged together with the feed module by means of the same plug-in system. For this purpose, the feed housing advantageously has a connection opening at one housing side, through which the connection end contact can be plugged and can be in electrical contact with the busbar section of the feed module. On the opposite side, the distribution block then has at least one exposed connection opening. At the side, the distribution block can be closed, for example, by a closing plate, for example by a plate made of insulating material, which can have at least one protruding pin, which is shaped similarly to the protruding connection end contact and can be inserted into the connection opening corresponding thereto.

[0013] According to an advantageous design of the present invention, the power distribution module has at least two connection end contacts extending from the housing section at the first housing side and at least two connection openings at the second housing side similarly, and in particular has symmetrically arranged connection end contacts and connection openings. By at least two such electrical connections made by means of the connection end contacts, the current carrying capacity of the busbar device formed by the various busbar sections can be increased. In addition, redundancy is achieved in the electrical contact, which improves the reliability and safety of the terminal block. The connection end contacts and their associated connection openings can be symmetrically arranged in particular in the following manner: the connection end contacts and their associated connection openings are arranged in a mirror-symmetrical manner relative to the center plane of the distribution block extending in the arrangement direction.

[0014] According to an advantageous design of the present invention, at least one connection contact extending from the housing section is formed integrally with the busbar section arranged in the housing section. As a result, the manufacture and installation of the power distribution module are simplified and correspondingly designed cost-effectively. In addition, the current carrying capacity can be further improved and the transition resistance can be minimized by this one-piece design.

[0015] According to an advantageous design of the present invention, at least one connection contact is formed as a contact strip bent from the material of the busbar section. This is also beneficial for the simple manufacture of the busbar section of the power distribution module, in particular by means of conventional manufacturing processes. The contact strip can be shaped similarly to the contact blade of the blade contact of the plug connector, for example.

[0016] According to an advantageous design of the present invention, at least one connection end contact is configured as a component separate from the busbar section, which can be inserted into the housing section when necessary and can be connected to the busbar section arranged in the housing section. This further improves the flexibility when configuring the modularly constructed terminal block. The connection end contact, which is configured as a separate component and can be inserted only when necessary, can be omitted, for example, in the last distribution module of the plug-in series arrangement of the distribution modules, so that the connection end contact does not protrude from the housing section there.

[0017] According to an advantageous design of the present invention, the connection end contact has a U-shape in the cross section. In this way, the connection end contact can be well introduced into the housing sections of two adjacent distribution modules and contact their busbar sections. For example, one vertical leg of the U-shape can be connected to the busbar section of one distribution module, and the other vertical leg of the U-shape can be connected to the busbar section of an adjacent distribution module. Here, the busbar section of the distribution module can be electrically contacted on both sides by two vertical legs of different U-shaped connection end contacts, which are pressed against each other by clamping springs. The U-shaped connection end contact then extends to the busbar sections of the adjacent distribution modules on the left and right, respectively.

[0018] According to an advantageous design of the present invention, the distribution modules each have at least one connection contact portion configured as a counterpart to at least one protruding connection end contact portion, and the connection end contact portions of adjacent distribution modules can be plugged together with the connection contact portion according to the type of plug-in connection, wherein the connection contact portion is arranged at the busbar section of the corresponding distribution module. This allows the distribution modules to be plugged together simply and reliably and allows safe electrical contact.

[0019] According to an advantageous design of the present invention, at least one connecting contact is formed integrally with the busbar section of the corresponding power distribution module. As a result, the manufacture of the power distribution module and its installation are simplified and correspondingly designed cost-effectively. In addition, the current carrying capacity can be further improved and the transition resistance can be minimized by this one-piece design.

[0020] According to an advantageous design of the present invention, the connecting contact is formed as a contact piece bent from the material of the busbar section. This is also beneficial for the simple manufacture of the busbar section of the power distribution module, especially for manufacture using conventional manufacturing processes. The contact piece can be shaped similarly to the contact blade of the blade contact of the plug connector, for example.

[0021] According to an advantageous design of the present invention, a clamping spring is provided at the corresponding connection contact portion, by which the connection end contact portion plugged into the connection contact portion can be pressed against the connection contact portion. Reliable contact can be established by such a clamping spring, and in particular sufficient contact force can be provided. The clamping spring can be a clamping spring other than the clamping spring of the spring force clamping terminal, and the clamping spring is specifically used for the contact between the connection end contact portion and the connection contact portion. Alternatively, the connection end contact portion can also be pressed against the connection contact portion by the clamping spring of the distribution module, and the clamping spring also has the function of a clamping spring of the spring force clamping terminal of the distribution module.

[0022] According to an advantageous design of the present invention, the clamping spring has a first spring leg, a spring bow connected to the first spring leg and a second spring leg connected to the spring bow, wherein the connection contact is arranged between the first spring leg and the second spring leg. In this way, the clamping spring can be supported at the connection contact by means of one spring leg and at the inserted connection contact by means of the other spring leg. The clamping spring can be permanently fastened to the connection contact, for example as a prestressed spring that is fixedly clamped to the connection contact by means of its elastic force.

[0023] According to an advantageous design of the present invention, the first spring leg is arranged substantially parallel to the second spring leg, which allows good contact and simple introduction of the connection end contact portion.

[0024] According to an advantageous design of the present invention, an insertion tab is provided on the first spring leg and / or the second spring leg, which protrudes toward the connection opening and extends at an inclined angle relative to the corresponding spring leg, and the insertion tab forms an insertion funnel for introducing the connection end contact. This further simplifies the introduction of the connection end contact into the plug connection formed in this way.

[0025] According to an advantageous design of the invention, the clamping spring is designed in an omega shape in a side view. This shape makes it possible to achieve a high elastic force with a relatively small structural shape of the clamping spring. The omega-shaped design of the clamping spring can be designed in particular such that the first spring leg and the second spring leg first extend toward each other starting from the spring bow and bend away from each other again toward the free end, so that an introduction funnel is formed in the longitudinal direction of the clamping spring toward the free end of the spring leg. This design of the clamping spring is particularly advantageous for contacting the power distribution module with a connection end that is designed as a separate component and is designed in a U-shaped manner in cross section.

[0026] According to an advantageous design of the present invention, at least one connection contact is configured as a fork-shaped contact, in particular as a fork-shaped contact arranged in a housing section, which is configured to be plugged together with a knife-shaped contact. Such a connection contact can particularly advantageously accommodate a connection end contact in the form of a knife-shaped contact. In addition, such a connection contact can be configured in a simple manner as a single piece with a busbar section of a power distribution module. The connection contact is configured as a socket contact in the described manner.

[0027] According to an advantageous embodiment of the present invention, the clamping spring is designed mirror-symmetrically with respect to a symmetry plane extending between the first spring leg and the second spring leg. In this way, a clamping spring of compact design with high elastic force can be provided.

[0028] The purpose mentioned at the beginning is also achieved by a distribution module of a terminal block of the type described above, wherein the distribution module can be plugged together and electrically connected with another distribution module of the same structure in the arrangement direction to form a distribution block of a terminal block of the type described above. The advantages described above can also be achieved in this way. The distribution module can be designed in particular so that the distribution module has at least one connection end contact extending from a housing section at a first housing side of its housing part, and has at least one connection opening on a second housing side opposite to the first housing side, through which a connection end contact of another distribution module plugged into the distribution module can be plugged and electrically contacted with the busbar section of the distribution module.

[0029] In summary, the following advantages can be achieved in particular by means of the present invention:

[0030] - Free configurability of the power distribution terminal blocks,

[0031] - redundancy of the electrical connections between modules,

[0032] - increased current-carrying capacity of the busbar arrangement,

[0033] -Manufacture the individual components using traditional manufacturing processes,

[0034] The distribution modules are simply and logically arranged and plugged together to form a distribution block, and plugged together with the feed modules to form a complete distribution terminal block.

[0035] For the purposes of the present invention, the indefinite article "a" is not to be understood as a numeral. That is, if, for example, "a component" is mentioned, this is to be interpreted in the sense of "at least one component". Whenever an angle is specified in degrees, it relates to a circle size of 360 degrees (360°). BRIEF DESCRIPTION OF THE DRAWINGS

[0036] The present invention will be described in detail below based on embodiments using the accompanying drawings.

[0037] The accompanying drawings show:

[0038] Figure 1 A modularly designed connecting terminal in the form of a power distribution terminal block is shown in a perspective view.

[0039] Figure 2 , Figure 3 Shown in different perspectives Figure 1 The busbar device of the terminal block,

[0040] Figure 4 The base with the closing plate is shown in a perspective view. Figure 1 The terminal blocks of the power distribution block,

[0041] Figure 5 , Figure 6 A further embodiment of a busbar arrangement of a connecting terminal is shown in different perspective views.

[0042] Figure 7 A further embodiment of a busbar arrangement of a connecting terminal is shown in a perspective view, the connecting terminal having a spring force clamping terminal and an actuating element arranged on the connecting terminal.

[0043] Figure 8 A busbar section of a feed module is shown in a perspective view.

[0044] Fig. 9 The busbar section and the spring-loaded clamping terminals of a switchgear module are shown in a perspective view.

[0045] Fig.10 In the top view, the Figure 7 device. DETAILED DESCRIPTION

[0046] Figure 1A connection terminal 1 in the form of a distribution terminal block can be seen. The connection terminal 1 has a modular structure with a feed module 11 and a plurality of distribution modules 12. The distribution modules 12 are plugged together to form a distribution block. The distribution block is plugged together with the feed module 11. The feed module 11 has a housing section 21. The distribution modules 12 each have a housing section 22. The plugged together housing sections 21, 22 of the mentioned modules form a block-shaped housing 2 of the connection terminal 1.

[0047] It can also be seen that the housing segment 21 has a relatively large wire introduction opening L1 to accommodate electrical wires with large cross-sections. The housing segments 22 of the distribution module 12 each have two wire introduction openings L2, which are smaller than the wire introduction openings L1 and are configured to accommodate electrical wires with small cross-sections. Each of the wire introduction openings L1, L2 is associated with a spring force clamping terminal arranged in the corresponding housing segment 21, 22. For each spring force clamping terminal, the housing segments 21, 22 each have an associated operating opening 5, through which the spring force clamping terminal can be operated by means of a tool or an operating element fixedly arranged at the terminal, such as an operating push piece. In addition, a busbar segment is arranged in each of the housing segments 21, 22, wherein in Figure 1 Only the busbar section 32 of the last distribution module 32 arranged in series can be seen.

[0048] Figure 2 and Figure 3 Indicate according to Figure 1 An advantageous embodiment of a busbar arrangement 3 of a terminal block 1 of the embodiment of the present invention is shown. It can be seen that the busbar arrangement 3 has a busbar section 31 of the feed module 11 and three busbar sections 32 of the corresponding distribution module 12. The busbar sections 31, 32 have an opening 6 for each spring force clamping terminal, through which the electrical conductor to be clamped can be guided. In this area, the clamping spring for fixing the clamped electrical conductor is also provided as part of the spring force clamping terminal, which can be carried out in a known manner and is therefore not shown here for the sake of clarity. Figure 2 and Figure 3 Not shown in FIG.

[0049] It can be seen that the busbar sections 32 of the distribution module 12 are connected to each other and electrically contacted by the connection end contacts 34 from one busbar section to the next busbar section. In addition, the electrical contact with the busbar section 31 of the feed module 11 is established via the connection end contacts 34 of the last busbar section 32. The connection end contacts 34 can, for example, be formed integrally with the material of the corresponding busbar section 32 and protrude from the busbar section in the manner of a connecting piece or a blade contact.

[0050] The busbar section 32 of the distribution module 12 and also the busbar section 31 of the feed module 11 have a connection contact 33 in the illustrated embodiment, which serves as a counterpart to the connection end contact 34 and can be electrically contacted with the connection end contact 34. Each connection end contact 34 is in contact with the connection contact 33. The connection contact 33 can also be formed in one piece with the material of the corresponding busbar section 31, 32 and, for example, be configured as a connecting piece bent at the end side. It is particularly advantageous that the individual busbar sections 31, 32 are in contact with each other symmetrically on both sides, that is, there are connection end contacts 34 at the two ends of each busbar section 32, which can be connected to the corresponding connection contact 33.

[0051] In order to ensure a reliable electrical contact between the connection contacts 34 and the connection contacts 33, a clamping spring 7 is provided for each of the connection portions. The clamping spring 7 has a first spring leg 71 and a second spring leg 72, respectively. The spring legs 71 and 72 are connected to each other via a spring bow 70. The first spring leg 71 abuts against the corresponding connection contact 33, and the second spring leg 72 abuts against the corresponding connection contact 34, so that the corresponding connection contact 34 is pressed against the connection contact 33 via the spring legs 71 and 72. Therefore, the connection contact 34 and the connection contact 33 are respectively accommodated between the first and second spring legs 71 and 72 of the clamping spring 7. Only at the last busbar section 32 starting from the busbar section 31 is no connection contact 34 inserted.

[0052] In order to facilitate the plugging of the busbar sections or the individual distribution modules 12 together and with the feed module 11, there can be an introduction lug 73 protruding obliquely from the corresponding spring leg on the first and second spring legs 71, 72 on the clamping spring 7. The introduction lugs 73 are separated from each other and form an introduction funnel for introducing the connection end contact 34 in the described manner.

[0053] Therefore, in each power distribution module 12, such a busbar section 32 together with the associated clamping spring 7 is respectively arranged in the housing section 22. This causes the connection end contact 34 on the first housing side of the housing section 22 to protrude from the corresponding housing section 22, as shown in Figure 4 As can be seen in the last power distribution module 22. The housing section 22 has a corresponding connection opening at the housing side facing away from the first housing side, through which the corresponding protruding connection end contact 34 can be guided. The connection opening can, for example, substantially correspond to the cross-sectional dimensions of the connection end contact 34.

[0054] It is also possible that, as in Figure 1As can be seen in FIG. 1 , the housing section 22 is designed to be partially open on the first housing side, i.e., there is no housing wall which largely closes the housing section 22. In this way, the structural space is saved, so that the distribution terminal block can be designed relatively compactly. In order to close the open first housing side of the last distribution module 12, the closing plate 8 can be arranged there and coupled to the housing module 22, as shown in FIG. Figure 4 For example, the closing plate 8 can have a protruding pin 80, which is shaped similarly to the connection contact 34 protruding from the housing module 22. The pin 80 can then be connected to the connection contact 33 of the busbar section 32 of the last distribution module 12 via the clamping spring 7 similarly to the connection contact 34.

[0055] Figure 5 The connecting terminal 1 is shown, for example according to Figure 1 Another embodiment of an advantageous design of the busbar arrangement 3 of the connecting terminal 1 is shown. The plurality of busbar sections 32 of the distribution module 12 and the busbar section 31 of the feed module 11 are again visible. In this case, a clamping spring is also provided on each of the busbar sections 31, 32, which forms a spring-force clamping terminal 4.

[0056] The U-shaped terminal contacts 34, which are mechanically fixed in each distribution module 12 and in the feed module 11 via the substantially omega-shaped clamping springs 7 and are in electrical contact with the busbar sections 31, 32, are used to connect the respectively adjacent busbar sections 31, 32 to each other. This is explained below. Figure 6 It is further shown according to the cross-sectional view.

[0057] like Figure 6 As shown, in the case described, the connection end contact 34 extends from one distribution module 12 to the next distribution module 12, or from the last distribution module 12 to the feed module 11. The U-shaped connection end contact 34 has a horizontal leg 36 and, at the end of the horizontal leg, a vertical leg 35, 37 bent opposite thereto. In the distribution module 12, each connection contact 33 of the busbar section 32, which is designed, for example, as a connecting piece, is then accommodated between two vertical legs 35, 37 of different connection end contacts 34. The arrangement consisting of the two vertical legs 35, 37 and the connection contact 33 is pressed together by the clamping spring 7 placed thereon.

[0058] In order to assemble the individual distribution modules 12 into a distribution block and connect the distribution block to the feed module 11, the clamping spring 7 can be pressed downward from above onto the vertical legs 35, 37 and the arrangement of the connecting contacts 33. Here, the clamping spring 7 can be guided by means of a sliding element. By pressing the sliding element downward, the individual modules 11, 12 can be connected to each other not only mechanically but also electrically.

[0059] Figure 7 The connecting terminal 1 is shown, for example according to Figure 1 A further embodiment of an advantageous busbar arrangement 3 of a connecting terminal 1 is disclosed, wherein the connecting terminal again comprises a clamping spring of a spring-force clamping terminal 4 and additionally comprises an actuating element 50 of the connecting terminal, here for example in the form of an actuating lever.

[0060] The individual busbar sections 31, 32 can be designed in the manner of a clamping cage that accommodates and fixes the corresponding clamping springs. In addition, one or more terminal contacts 34 and one or more connecting contacts 33 can be integrally formed on the corresponding busbar sections 31, 32. This design is further illustrated by the figures described below.

[0061] Figure 8 and Fig. 9 It is shown that the connection contact 34 can again be designed as a connecting piece formed in one piece from each busbar section 31, 32, which can protrude from the busbar section in the connection direction and extend from the corresponding housing section. The connecting contact 33 associated as a counterpart can be designed as a socket contact in the form of a fork-shaped contact, each having two contact arms 39, between which the connection contact 34 formed in the form of a blade contact can be accommodated and electrically contacted.

[0062] Fig.10 The electrical contact between the terminal contact 34 and the connecting contact 33 is shown.

[0063] Reference numerals list

[0064] 1 Terminal block

[0065] 2 Shell

[0066] 3 Busbar device

[0067] 4 Spring force clamp terminals

[0068] 5. Manipulate the opening

[0069] 6 Busbar opening

[0070] 7 Clamping spring

[0071] 8 Closed plate

[0072] 11 Feed module

[0073] 12 Power distribution module

[0074] 21 Housing section of the feed module

[0075] 22 Housing section of power distribution module

[0076] 31 Busbar section of the feed module

[0077] 32 Busbar section of the power distribution module

[0078] 33 connection contact part

[0079] 34 connection terminal contact part

[0080] 35 Vertical Legs

[0081] 36 horizontal legs

[0082] 37 Vertical Legs

[0083] 39 Contact Arm

[0084] 50 operating elements

[0085] 70 Spring Bow

[0086] 71 first spring leg

[0087] 72 second spring leg

[0088] 73 Introduction of splices

[0089] 80 pins

[0090] AArrangement direction

[0091] L1 wire entry opening

[0092] L2 wire entry opening

Claims

1. A terminal block (1), wherein the power distribution terminal block comprises a housing (2) and a spring force clamping terminal (4) for connecting an electrical conductor arranged in the housing (2), wherein the housing comprises a plurality of wire introduction openings (L1, L2), wherein at least one first spring force clamping terminal (4) is configured for connecting an electrical conductor with a large cross section, and there are a plurality of second spring force clamping terminals (4), wherein the second spring force clamping terminals are configured for connecting an electrical conductor with a small cross section, wherein the first and second spring force clamping terminals (4) are electrically conductively connected to each other via a busbar device (3), characterized in that The connecting terminal (1) is modularly constructed, comprising at least one feeding module (11) and a plurality of distribution modules (12) plugged together to form a distribution block, the feeding module comprising the at least one first spring force clamping terminal (4), at least one second spring force clamping terminal (4) being respectively arranged in the distribution modules, wherein the feeding module (11) and each distribution module (12) respectively have their own housing sections (21, 22), wherein the housing (2) of the connecting terminal (1) is formed by the housing sections (21, 22) of the feeding module (11) and the distribution modules (12) plugged together.

2. The connection terminal according to claim 1, characterized in that: The distribution modules (12) each have a busbar section (32) which is at least largely arranged in a corresponding housing section (22) of the distribution module and forms a part of a busbar arrangement (3) of the distribution terminal block.

3. The connection terminal according to claim 2, characterized in that: The busbar sections (22) of adjacent distribution modules (12) are respectively electrically contacted with each other in the following manner: the distribution module (12) has at least one connection end contact portion (34) extending from the housing section at a first housing side of the housing section (22), and the adjacent distribution module (12) has at least one connection opening on a second housing side of the housing section (22) facing the first housing side, and the connection end contact portion (34) of the distribution module (12) plugged into the adjacent distribution module is plugged through the connection opening and electrically contacted with the busbar section (32) of the adjacent distribution module (12).

4. The connection terminal according to claim 3, characterized in that: The power distribution module (12) has at least two connection contacts (34) projecting from the housing section (22) at the first housing side and at least two connection openings similarly disposed at the second housing side, in particular symmetrically arranged connection contacts (34) and connection openings.

5. The connection terminal according to claim 4, characterized in that: The at least one terminal contact (34) protruding from the housing section (22) is formed integrally with a busbar section (32) arranged in the housing section (22).

6. The connection terminal according to claim 5, characterized in that: The at least one terminal contact (34) is designed as a contact lug bent from the material of the busbar section (32).

7. The connecting terminal according to any one of claims 3 to 4, characterized in that: The at least one terminal contact (34) is designed as a component separate from the busbar section (32), which can be inserted into the housing section (22) when necessary and can be connected to the busbar section (32) arranged in the housing section (22).

8. The connecting terminal according to any one of claims 3 to 7, characterized in that: The connection terminal contact portion (34) has a U-shape in cross section.

9. The connecting terminal according to any one of claims 3 to 8, characterized in that: The distribution modules (12) each have at least one connection contact portion (33), which is configured as a counterpart to the at least one protruding connection end contact portion (34), and the connection end contact portion (34) of an adjacent distribution module (12) can be plugged together with the connection contact portion according to the type of plug-in connection, wherein the connection contact portion (33) is arranged at the bus section (32) of the corresponding distribution module (12).

10. The connection terminal according to claim 9, characterized in that: The at least one connecting contact (33) is formed integrally with a busbar section (32) of the corresponding distribution module (12).

11. The connection terminal according to claim 10, characterized in that: The connecting contact (33) is designed as a contact lug bent from the material of the busbar section (32).

12. The connecting terminal according to claim 10 or 11, characterized in that: A clamping spring (7) is provided on each of the connecting contacts (33), and a connecting contact (34) plugged onto the connecting contact (33) can be pressed against the connecting contact (33) by means of the clamping spring.

13. The connection terminal according to claim 12, characterized in that: The clamping spring (7) has a first spring leg (71), a spring bow (70) connected to the first spring leg (71), and a second spring leg (72) connected to the spring bow (70), wherein the connecting contact (33) is arranged between the first and second spring legs (71, 72).

14. The connection terminal according to claim 13, characterized in that: The first spring leg (71) is arranged substantially parallel to the second spring leg (72).

15. The connecting terminal according to claim 13 or 14, characterized in that: An introduction tab (73) is provided on the first spring leg (71) and / or the second spring leg (72), protruding toward the connection opening and extending at an inclined angle relative to the corresponding spring leg (71, 72), the introduction tab constituting an introduction funnel for introducing the connection end contact portion (34).

16. The connecting terminal according to any one of claims 13 to 15, characterized in that: The clamping spring (7) is designed in an Omega-shaped manner in side view.

17. The connecting terminal according to any one of claims 9 to 10, characterized in that: The at least one connecting contact (33) is designed as a fork contact, in particular as a fork contact arranged in the housing section (22), which is configured to be plugged together with a blade contact.

18. The connecting terminal according to any one of claims 13 to 17, characterized in that: The clamping spring (7) is designed to be mirror-symmetrical with respect to a symmetry plane extending between the first spring leg (71) and the second spring leg (72).

19. A power distribution module for a terminal block according to any one of the above claims, characterized in that: The distribution module (12) can be plugged together in the row direction (A) with another distribution module (12) of identical design and electrically connected in order to form a distribution block of the terminal block (1) according to any of the preceding claims.

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