CN113178723A

CN113178723A - Wiring terminal and electronic equipment

Info

Publication number: CN113178723A
Application number: CN202110087644.9A
Authority: CN
Inventors: 安德烈·赛尔斯; 拉尔夫·霍普曼
Original assignee: Phoenix Contact GmbH and Co KG
Current assignee: Phoenix Contact GmbH and Co KG
Priority date: 2020-01-24
Filing date: 2021-01-22
Publication date: 2021-07-27
Anticipated expiration: 2041-01-22
Also published as: CN113178723B; DE102020101653A1; EP3855571B1; EP3855571A1

Abstract

The invention relates to a connection terminal (100) for connecting electrical conductors (200), having a housing (110), a current bar (120) arranged in the housing (110), a clamping spring (130) arranged in the housing (110) for clamping a conductor (200) to be connected against the current bar (120) in a conductor connection chamber (140) formed between the current bar (120) and the clamping spring (130), and an actuating element (150) movably mounted in the housing (110), wherein a clamping leg (131) of the clamping spring (130) can be actuated by means of the actuating element (150) in order to transfer the clamping leg (131) from a clamping position into an open position, wherein, viewed in an actuating direction (H) of the actuating element (150), a guide element (111) for supporting the actuating element (150) and/or a guide element (162) for supporting the clamping spring (130) is provided below a section (121) of the current bar (120), the conductor (200) is clamped against the section by a clamping spring.

Description

Wiring terminal and electronic equipment

Technical Field

The invention relates to a terminal for connecting electrical conductors, comprising a housing, a current bar arranged in the housing, a clamping spring arranged in the housing for clamping a conductor to be connected against the current bar in a conductor connection chamber formed between the current bar and the clamping spring, and an actuating element movably mounted on the housing, wherein a clamping leg of the clamping spring can be actuated by means of the actuating element in order to move the clamping leg from a clamping position into an open position.

Background

The actuating element of such a terminal is therefore used on the one hand to actuate the clamping spring in order to release the conductor connection chamber for inserting the conductor to be connected. On the other hand, it can be provided that the actuating element at least partially delimits the conductor connection chamber. For both functions, it is important that the actuating element reliably assumes its predefined position both in the clamping position and in the open position.

If the actuating element is partially deformed or deflected out of its predefined position, for example due to an excessive force action in the open position, an undesirable gap may be produced between the housing and the actuating element in this way, into which gap the conductor ends of the conductors to be connected may be unintentionally introduced, so that in the clamped position no electrically conductive contact may be produced between the current bar and the electrical conductors to be connected.

Furthermore, such a deformation or deflection of the actuating element may result in the actuating element sliding off the clamping leg of the clamping spring, so that the actuating element no longer engages with the clamping leg of the clamping spring. In addition to possible damage to the clamping spring and/or the actuating element, it may also be the case here that the clamping leg already springs back into the clamping position before the insertion of the electrical conductor to be connected, so that the conductor can no longer be inserted into the conductor connection chamber.

Disclosure of Invention

It is therefore an object of the present invention to provide a terminal and an electronic device which allow a secure actuation of the clamping leg by the actuating element.

According to the invention, this object is achieved by the features of the independent claims. Advantageous embodiments and advantageous refinements of the invention are specified in the dependent claims.

According to the invention, a terminal for connecting electrical conductors is proposed, having a housing, a current bar arranged in the housing, a clamping spring arranged in the housing for clamping a conductor to be connected against the current bar in a conductor connection chamber formed between the current bar and the clamping spring, and an actuating element which is movably mounted in the housing, wherein a clamping leg of the clamping spring can be actuated by means of the actuating element in order to transfer the clamping leg from a clamping position into an open position. As viewed in the actuating direction of the actuating element, a guide element for supporting the actuating element and/or a guide element for supporting a clamping spring, against which the conductor is clamped by the clamping spring, is arranged below a section of the current bar.

The guide element for supporting the actuating element ensures that the actuating element is not deformed or deflected during the transition from the clamping position into the open position and vice versa and reliably remains in contact with the clamping leg of the clamping spring. The guide element for supporting the clamping spring ensures that the clamping spring is not deformed or deflected, in particular during the actuation of the clamping spring by means of the actuating element, and is reliably held in the desired position within the housing. The terminal can have a guide element for supporting the actuating element and a guide element for supporting the clamping spring. However, it is also possible for the terminal to have only one of the two guide elements.

It can be provided that the actuating element at least partially delimits the conductor connection chamber, in particular at least on both sides. In this case, the guide element for supporting the actuating element additionally ensures that no play can occur between the actuating element and the housing as a result of deformation or deflection of the actuating element, which play could lead to incorrect installation of the electrical conductors to be connected.

The guide element for supporting the actuating element and/or the guide element for supporting the clamping spring may be an integral component of the housing. In this way, the individual guide elements can be integrated into the shape of the housing in a cost-effective manner.

For example, it can be provided that the guide element for supporting the actuating element and/or the guide element for supporting the clamping spring and/or the housing have an electrically insulating plastic or can be made of an electrically insulating plastic.

The guide element for supporting the actuating element and/or the guide element for supporting the clamping spring can be, for example, part of a side wall of a housing of the connecting terminal. The guide element can therefore be integrated compactly into the housing of the terminal.

Alternatively, it can be provided that the guide element for supporting the actuating element and/or the guide element for supporting the clamping spring are provided as separate components and are connected to the housing of the terminal. The guide element for supporting the actuating element and/or the guide element for supporting the clamping spring can be encapsulated by the plastic injection molding of the housing, so that a form-fitting connection can be produced between the guide element for supporting the actuating element and/or the guide element for supporting the clamping spring and the housing of the connection terminal. It can be provided that the guide element for supporting the actuating element and/or the guide element for supporting the clamping spring is detachably connected to the housing of the terminal.

The guide element for supporting the actuating element can be a web which surrounds a section of the actuating element. The actuating element can therefore be prevented from deflecting by the form-fitting connection.

The guide element for supporting the clamping spring can also be a web which laterally supports a section of the retaining leg of the clamping spring. The guide element for supporting the clamping spring can prevent a lateral movement of the holding leg, in particular of the clamping spring, when the clamping leg of the clamping spring is transferred into the clamping position and into the open position. Even in the clamped state of the conductor, a secure fit of the clamping spring can be ensured by means of the guide element and thus tilting of the clamping spring is prevented.

In particular, it can be provided that the guide element for supporting the actuating element can be part of a linear guide which only permits a purely translatory movement of the actuating element from the first position into the second position, so that the linear guide can occupy three rotational degrees of freedom and two translational degrees of freedom for the actuating element. Such a linear guide can be provided, for example, in a purely positive manner by the geometry of the housing of the connecting terminal, in which the actuating element is accommodated. The housing can thus have, for example, a shaft along which the actuating element can be moved, wherein a guide element for supporting the actuating element can serve as an additional support for counteracting a deflection or deformation of the actuating element.

The guide element for supporting the manoeuvring element may have a first guide surface which causes support of the manoeuvring element against lateral movement in the first direction. The guide element for supporting the manoeuvring element may have a second guide surface which causes support of the manoeuvring element against lateral movement in a second direction which is different from the first direction. If a transverse displacement is mentioned here, this is in particular a displacement transverse to an actuating direction of the actuating element, along which the actuating element executes a translational movement in order to move the clamping legs from their clamping position into their open position and vice versa.

The first guide surface may be a flat surface. The second guide surface may be a flat surface.

The first direction may be oriented perpendicular to the actuating direction of the actuating element. The second direction may be oriented perpendicular to the actuating direction of the actuating element. Alternatively or additionally, the first direction may be oriented perpendicular to the second direction.

The actuating element may have at least one actuating arm, wherein the at least one actuating arm may delimit the conductor connection chamber transversely to the insertion direction of the conductor, wherein the actuating arm may rest with an actuating surface against the clamping leg of the clamping spring in the open position of the clamping spring. Depending on the installation position of the connecting terminal, it can be provided that the actuating arm can also rest with its clamping surface against the clamping leg of the clamping spring in the clamping position.

The guide element for supporting the actuating element can be designed to prevent a deflection of the actuating arm transverse to the actuating direction of the actuating element and transverse to the insertion direction of the conductor to be connected. Provision may be made for at least one guide surface of the guide element for supporting the actuating element to be provided, along which the actuating element slides during actuation of the clamping leg, the surface normal of which guide surface can be oriented substantially perpendicularly to the actuating direction and/or perpendicularly to the insertion direction.

The at least one actuating arm can have at least one guide tab, which can be arranged on a side of the actuating arm facing away from the conductor connection chamber and/or can slide along a guide element for supporting the actuating element when the actuating element is actuated. The guide webs can be used for defined abutment of the actuating arm on the guide element.

It can be provided that the actuating arm has two guide webs spaced apart from one another, which are provided for abutting against guide elements for supporting the actuating element and/or against sections of the housing. In particular, the guide tabs may extend substantially parallel to each other. A further web can be provided between the guide webs, or a plurality of further webs can be provided in order to achieve a structural reinforcement of the actuating arm.

At least one actuating arm can have a stop section for limiting the stroke travel of the actuating element. In particular, it can be provided that a sliding surface is provided on the recess of the actuating arm, along which a section of the clamping leg slides on the actuating arm when the clamping leg is actuated, and that the recess is delimited at least in sections by the stop section. In particular, the stop section can be a hook-shaped end section of the actuating arm.

The current bar may pass through the actuating element, wherein a section of the current bar may be arranged between the at least one actuating arm and the second actuating arm of the actuating element, against which section the conductor is clamped by means of a clamping spring. In this way, the current bar can be integrated compactly together with the actuating element into the housing of the connection terminal. The current bar can have a recess, against which the actuating arm of the actuating element can rest, so that the current bar can also provide a guide for the actuating element.

The actuating element may have an asymmetrical shape, wherein the shape of at least one actuating arm differs from the shape of the second actuating arm.

It can be provided that at least one actuating arm has a length, measured in the actuating direction of the actuating element, which is smaller than a length of a second actuating arm, measured in the actuating direction of the actuating element. For example, the second actuating arm can have a stop in order to preset a defined maximum stroke length, while at least one actuating arm does not have such a stop and is therefore shaped set back relative to the second actuating arm.

Furthermore, it can be provided that at least one actuating arm has a guide tab, for example as described above, while the second actuating arm does not have such a guide tab.

The clamping leg of the clamping spring can have at least one sliding plate which comes into contact with the actuating element during the transition of the clamping leg from the clamping position into the open position.

The clamping spring can have a second sliding plate which comes into contact with the actuating element during the movement of the clamping leg from the clamping position into the open position.

Such a slide plate can correspond to a control surface or pressure surface of the control arm of the control element, along which the slide plate slides during the transition of the clamping leg from the clamping position to the open position.

The sliding plate and/or the pressure surface can be embodied at least in sections in an arc-shaped manner to facilitate smooth sliding.

The slide plate can be a freely projecting end section of the clamping leg, which is arranged adjacent to or adjacent to a freely projecting contact section of the clamping leg, wherein the contact section is provided for abutting against the electrical conductor to be connected.

The connecting terminals can be terminal blocks which can be snapped onto the carrier rail.

According to the invention, an electronic device is also provided, which has one or more connection terminals, wherein the connection terminals are constructed and extended as described above.

Drawings

The invention is explained in detail below according to preferred embodiments with reference to the drawings.

The figures show that:

figure 1a shows a schematic representation of a terminal according to the invention in a clamped position in a perspective view,

figure 1b shows a schematic side view and a schematic cross-sectional view along the sectional plane a-a of the connection terminal in figure 1a,

figure 1c shows a schematic view of the connection terminal of figure 1a in an open position in a perspective view,

figure 1d shows a schematic side view of the connection terminal of figure 1c,

figure 1e shows a schematic cross-sectional view of the connection terminal in figure 1d along a sectional plane B-B,

figure 1f shows a schematic cross-sectional view of the connection terminal in figure 1d along a sectional plane C-C,

figure 2 shows a schematic view of the actuating element of the connecting terminal of figure 1a in a perspective view,

figure 3 shows a schematic view in perspective of the clamping spring of the connection terminal in figure 1a,

figure 4 shows a schematic view of the current bar of the connection terminal in figure 1a in a perspective view,

figure 5 shows a schematic view in perspective of the operating element of figure 2, the clamping spring of figure 3 and the current bar of figure 4,

fig. 6 shows a schematic representation of the housing of the connection terminal in fig. 1a in a perspective view, an

Fig. 7 shows a schematic illustration of a connecting terminal according to a further embodiment of the invention.

Detailed Description

Fig. 1a shows a connection terminal 100 for connecting an electrical conductor 200. Such an electrical conductor 200 is schematically shown in a cross-sectional view a-a according to fig. 1 b.

The connection terminal 100 according to fig. 1a has a housing 110. The current bar 120 is disposed in the housing 110. Furthermore, a clamping spring 130 is arranged in the housing 110. The clamping spring 130 is used to clamp the conductor 200 to be connected against the current bar 120.

Between the current bar 120 and the clamping spring 130, a conductor connection chamber 140 is formed, in the region of which the conductor 200 to be connected is clamped against the current bar 120.

The connection terminal 100 has an actuating element 150, which is mounted movably on the housing 110.

The clamping spring 130 has clamping legs 131. The actuating element 150 is provided to move the clamping leg 131 from the clamping position (fig. 1a, 1b) into the open position (fig. 1c, 1 d). In other words, the clamping leg 131 of the clamping spring 130 can be actuated by means of the actuating element 150 in order to transfer the clamping leg 131 from the clamping position into the open position.

Viewed in the actuating direction H of the actuating element 150, a guide element 111 for supporting the actuating element 150 is arranged below a section 121 of the current bar 120, to which the conductor 200 is clamped by means of a clamping spring 130.

The guide element 111 is an integral component of the housing 110.

As can be seen in section a-a of fig. 1b, the guide element 111 is here a web 111, which surrounds a section 151 of the actuating element 150.

The guide element 111 has a first guide surface 112, which first guide surface 112 serves to support the operating element 150 against a lateral movement in the first direction R1 relative to the operating direction H of the operating element 150. The guide member 111 has a second guide surface 113, the second guide surface 113 being for supporting the steering member 150 against lateral movement relative to the steering direction H in a second direction R2 different from the first direction R1. The webs 111 therefore positively oppose a displacement of the actuating element 150 transversely to the actuating direction H.

The first direction R1 is oriented perpendicularly to the actuating direction H of the actuating element 150. The second direction R2 is oriented perpendicularly to the actuating direction H of the actuating element 150. The first direction R1 is oriented perpendicular to the second direction R2.

The actuating element 150 has an actuating arm 152, wherein the actuating arm 152 delimits the conductor connection chamber 140 transversely to the insertion direction E of the conductor 200, and wherein the actuating arm 152 rests with an actuating surface 154 against the clamping leg 131 of the clamping spring 130 in the open position of the clamping spring 130.

The actuating arm 152 has a guide tab 156 which is arranged on the side of the actuating arm 152 facing away from the conductor connection chamber 140 and which slides along the guide element 111 when the actuating element 150 is actuated. The actuating arm 152 has two

further webs

157, 158 for stiffening and guiding the actuating element 150.

The actuating element 150 has a second actuating arm 153 with a stop section 159 for limiting the displacement of the actuating element 150 along the actuating direction H.

The actuating element 150 has an asymmetrical shape, wherein the shape of the actuating arm 152 differs from the shape of the second actuating arm 153. The actuating arm 152 is shorter than the actuating arm 153, as viewed in the actuating direction H, because the actuating arm 153 has a stop 159.

The actuating element 150 has a further actuating surface 160 in the region of the second actuating arm 153, as can be seen in fig. 2. The actuating surface 154 of the actuating arm 152 and the actuating surface 160 of the second actuating arm 153 are each formed in a curved manner. A recess 161 is formed between the stop 159 of the second operating arm 153 and the operating surface 160.

Fig. 3 shows an isolated view of the clamping spring 130.

The clamping leg 131 of the clamping spring 130 has a first sliding plate 132 which is in contact with the actuating element 150 during the transition of the clamping leg 131 from the clamping position into the open position.

The clamping leg 131 of the clamping spring 130 has a second sliding plate 133 which is in contact with the actuating element 150 during the transition of the clamping leg 131 from the clamping position into the open position.

The first sliding plate 132 corresponds to an actuating surface 154 or a pressure surface 154 of the actuating arm 152 of the actuating element 150, along which the sliding plate 132 slides during the transition of the clamping leg 131 from the clamping position into the open position and vice versa.

The sliding plate 132 and the pressure surface 154 are at least in sections curved or bent in order to facilitate smooth sliding.

The second slide plate 133 corresponds to the actuating surface 160 or pressure surface 160 of the actuating arm 153 of the actuating element 150, along which the slide plate 133 slides during the transition of the clamping leg 131 from the clamping position into the open position and vice versa.

The sliding plate 133 and the pressure surface 160 are at least in sections curved or bent in order to facilitate a smooth sliding movement.

The sliding

plates

132, 133 are each a freely projecting end section of the clamping leg 131. The sliding

plates

132, 133 are arranged adjacent to the freely projecting contact section 134 of the clamping leg 131, wherein the contact section 134 is provided for abutting against the electrical conductor 200 to be connected.

The clamping spring 130 has

recesses

137, 138 on a supporting leg 136 which is connected to the clamping leg 131 via an arc-shaped section 135, in order to provide a free space for accommodating the sliding

plates

132, 133 in the open position.

Fig. 4 shows an isolated view of the current bar 120. The current bar 120 has

recesses

122, 123, against which the actuating

arms

152, 153 of the actuating element 150 can bear, so that the current bar 120 also provides a guide for the actuating element 150.

As can be seen from fig. 5, the current bar 120 passes through the actuating element 150, wherein the section 121 of the current bar 120 is arranged between the actuating arm 152 and the second actuating arm 153 of the actuating element 50.

Fig. 6 shows an isolated view of the housing 110. The housing 110 here comprises insulating plastic.

The housing 110 has a shaft 114 along which the actuating element 150 is movable. The shaft 114 has a recess 115, into which a tab 162 of the actuating element 150 engages in order to provide a positionally correct installation.

The guide element 111 and the shaft 114 form a linear guide for the actuating element 150, which only allows a purely translatory movement of the actuating element 152 along the actuating direction H from the first position (fig. 1a, 1b) into the second position (fig. 1a, 1b), so that the linear guide occupies three rotational and two translational degrees of freedom for the actuating element 150. The guide element 111 serves in particular as an additional support for the deflection or deformation of the actuating arm 152, in order to prevent the actuating arm 152 from slipping off the slide 132.

The housing 110 also has a tab 116 for receiving the clamping spring 130. The housing has a recess for receiving the current bar 120.

In order to clamp the conductor 200 between the clamping spring 130 and the current bar 120, the actuating element 150 is first moved in translation along the actuating direction H from the position shown in fig. 1a into the position shown in fig. 1 c. The clamping spring 130 is compressed in this way, wherein the clamping leg 131 approaches the supporting leg 136.

During this pushing movement, the

slide plates

132, 133 slide along the actuating surfaces 154, 160 of the actuating

arms

152, 153 of the actuating element 150.

The actuating arm 152 is guided with its guide webs 156 along the guide elements 111 of the housing 110. The guide element 111 prevents the actuating arm 152 from pivoting in the direction R2 transverse to the actuating direction H and reliably remains in engagement with the slide 132 of the clamping spring 130. The guide element 111 thus provides for guiding the actuating arm 152 in the region below the section 121 of the current bar 120, viewed in the actuating direction H.

Once the clamping leg 131 of the clamping spring 130 is in the open position shown in fig. 1c and 1d, the conductor connection chamber 140 is released for insertion of the conductor 200 into the conductor connection chamber 140 in the insertion direction E, and the conductor 200 can be moved between the clamping leg 131 and the current bar 120.

Actuating element 150 is then released and, due to the stress of clamping spring 130, is moved under spring loading by clamping leg 131 against actuating direction H until clamping leg 131 rests with its contact section 134 on conductor 200 inserted into conductor connection chamber 140 and presses conductor 200 against section 121 of current bar 120. In this state, conductor 200 is clamped between clamping spring 130 and current bar 120, wherein the spring force of clamping spring 130 acting on conductor 200 fixes conductor 200 in position.

In order to release the conductor 200 from the connecting terminal 100 again, the actuating element 150 can be moved again in the actuating direction H in order to lift the contact section 134 of the clamping spring 130 from the conductor 200 and release the latter.

The movement of the actuating element 150 against the spring force of the clamping spring 130 can be effected, for example, manually by means of a tool, such as a screwdriver or the like. Alternatively, it can be provided that the actuating element 150 is mechanically actuated to allow automatic installation of the conductor 200.

Fig. 7 shows a further embodiment of the connecting terminal 100, which, in addition to the embodiment of the connecting terminal 100 shown in fig. 1 to 6, also has a guide element 162 for supporting the clamping spring 130. By means of this guide element 162, the clamping spring 130 can be prevented in particular from tipping laterally or slipping out of the housing 110.

The guide element 162 for supporting the clamping spring 130 is here likewise formed integrally with the housing 110 and therefore in one piece, like the guide element 111 for supporting the actuating element 150. The guide member 162 is formed on a sidewall 164 of the housing 110. Thus, the guide elements 162 form an extension of the side walls 164. Therefore, both the guide element 111 for supporting the operating element 150 and the guide element 162 for supporting the clamping spring 130 are configured on the side wall 164 of the housing 110. The guide element 111 for supporting the actuating element 150 also forms an extension of the side wall 164.

The guide elements 162 are configured in the form of tabs. The guide element 162 extends in this case counter to the actuating direction H of the actuating element 150 in the direction of the conductor connection chamber 140. The guide element 162 for supporting the clamping spring 130 thus extends from the side wall 164 of the housing 110 in the direction of the conductor connection chamber 140 transversely to the direction of extension of the guide element 111 for supporting the actuating element 150 from the side wall 164 of the housing.

The guide element 111 for supporting the actuating element 150 and/or the guide element 162 for supporting the clamping spring 130 can also be formed in each case by two webs running parallel to one another, not shown here, so that a support of both sides of the actuating element 150 and/or the clamping spring 130 is possible. The two webs of the guide element 111 and/or the two webs of the guide element 162 are then formed on two side walls 164 of the housing 110 which extend parallel to one another. Thus, a lateral tilting of the actuating element 150 and/or the clamping spring can be prevented on both sides.

The guide element 162 extends in the direction of the conductor connection chamber 140 in such a way that the guide element 162 overlaps laterally with the retaining leg 163 of the clamping spring 130. The guide element 162 thus forms a lateral support surface for the retaining leg 163 of the clamping spring 130. The guide element 162 passes over a longitudinal side edge 165 of the retaining leg 163.

The guide element 162 for supporting the clamping spring 130 is likewise configured, like the guide element 111, below the section 121 of the current bar 120, relative to which the conductor 200 is clamped by the clamping spring 130, as viewed in the actuating direction H of the actuating element 150.

Description of the reference numerals

100 terminal

110 casing

111 guide element

112 first guide surface

113 second guide surface

114 well

115 recess

116 contact piece

120 current bar

Segment 121

122 recess

123 notch

130 clamping spring

131 clamping leg

132 skateboard

133 slide board

134 contact section

135 arc segment

136 support leg

137 recess

138 notch

140 conductor connection chamber

150 operating element

Segment 151

152 manipulator arm

153 operating arm

154 control surface/pressure surface

156 guide tab

157 contact strip

158 contact piece

159 stopping part

160 control/pressure surfaces

161 notch

162 guide element

163 holding leg

164 side wall

165 longitudinal side edge surface

200 conductor

E direction of insertion

H steering direction

R1 direction

R2 direction

Claims

1. A connection terminal (100) for connecting electrical conductors (200), having a housing (110), a current bar (120) arranged in the housing (110), a clamping spring (130) arranged in the housing (110) for clamping a conductor (200) to be connected against the current bar (120) in a conductor connection chamber (140) formed between the current bar (120) and the clamping spring (130), and an actuating element (150) movably mounted in the housing (110), wherein a clamping leg (131) of the clamping spring (130) can be actuated by means of the actuating element (150) in order to transfer the clamping leg (131) from a clamping position into an open position, characterized in that, viewed in an actuating direction (H) of the actuating element (150), a guide element (111) for supporting the actuating element (150) and/or a guide element (162) for supporting the clamping spring (130) is provided below a section (121) of the current bar (120), the conductor (200) is clamped against the section by a clamping spring (130).

2. The connection terminal (100) according to claim 1, characterized in that the guide element (111) for supporting the actuating element (150) and/or the guide element (162) for supporting the clamping spring (130) is an integral component of the housing (110).

3. The connection terminal (100) according to claim 1 or 2, characterized in that the guide element (111) for supporting the actuating element (150) is a tab which surrounds a section (151) of the actuating element (151) and/or the guide element (162) for supporting the clamping spring (130) is a tab which laterally supports a section of the retaining leg (163) of the clamping spring (130).

4. The connection terminal (100) according to any one of claims 1 to 3, characterised in that the guide element (111) for supporting the manoeuvre element (150) has a first guide surface (112) for supporting the manoeuvre element (150) against lateral movement in a first direction (R1), and the guide element (111) for supporting the manoeuvre element (150) has a second guide surface (113) for supporting the manoeuvre element (150) against lateral movement in a second direction (R2) different from the first direction (R1).

5. The connection terminal (100) according to claim 4, characterized in that the first direction (R1) is oriented perpendicularly to the actuating direction (H) of the actuating element (150), and the second direction (R2) is oriented perpendicularly to the actuating direction (H) of the actuating element (150), and/or the first direction (R1) is oriented perpendicularly to the second direction (R2).

6. The connection terminal (100) according to one of claims 1 to 5, characterised in that the actuating element (150) has at least one actuating arm (152, 153), wherein the at least one actuating arm delimits the conductor connection chamber (140) transversely to the insertion direction (E) of the conductor (200), wherein the actuating arm (152, 153) bears with an actuating surface (154, 160) against the clamping leg (131) of the clamping spring (130) in the open position of the clamping spring (130).

7. A terminal according to claim 6, characterized in that at least one actuating arm (152) has at least one guide tab (156) which is arranged on a side of the actuating arm (152) facing away from the conductor connection chamber (140) and/or slides along a guide element (111) for supporting the actuating element (150) when the actuating element (150) is actuated.

8. A terminal according to claim 6 or 7, characterized in that at least one actuating arm (153) has a stop section (159) for limiting the travel displacement of the actuating element (150).

9. A connection terminal according to one of claims 6 to 8, characterised in that a current bar (120) passes through the actuating element (150), wherein the section (121) of the current bar (120) is arranged between at least one actuating arm (152) and a second actuating arm (153) of the actuating element (150).

10. A terminal according to claim 9, characterized in that the actuating element (150) has an asymmetrical shape, wherein the shape of the at least one actuating arm (152) differs from the shape of the second actuating arm (153).

11. Electronic device with one or more connection terminals (100) constructed according to any one of claims 1 to 10.