A spring contact and contact terminal block
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-06-20
- Publication Date
- 2026-08-14
AI Technical Summary
[0003]有鉴于此，本实用新型提供了一种弹片及触联端子台，以解决“触联”式端子台在联接导线的过程中，要用到多个零部件方能实现对导线的夹紧和固定，存在着结构复杂的问题
[0006]通过创新性的弹片结构优化设计，实现了锁扣功能、触发功能及夹线功能的三重集成。其中，锁扣部采用触发板宽度方向侧边的侧向弯折延伸结构，该设计不仅显著降低了加工难度，使弹片更易于生产，同时大幅降低了模具复杂度。相较于传统技术方案，本设计有效减少了壳体内零部件数量，在保证功能完整性的前提下，实现了结构简化和成本降低的双重优势。
Smart Images
Figure CN224637429U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of connector technology, specifically to a spring contact and a contact terminal block. Background Technology
[0002] Terminal blocks are electronic components used to connect wires in circuits. They play a crucial role in circuits, connecting wires to ensure proper circuit operation. While "touch-and-connect" terminal blocks offer easy and efficient wire connection, the process requires multiple components to clamp and secure the wires, resulting in structural complexity. Utility Model Content
[0003] In view of this, the present invention provides a spring and a contact terminal block to solve the problem that the contact terminal block requires multiple parts to clamp and fix the wires during the connection process, resulting in a complex structure.
[0004] In a first aspect, this utility model provides a spring clip, comprising:
[0005] The body includes a movable clamping segment, a movable locking segment, and an intermediate fixed segment. One end of the intermediate fixed segment is connected to the movable clamping segment, and the other end is connected to the movable locking segment. The movable locking segment includes a locking part and a trigger plate. One end of the trigger plate is connected to the intermediate fixed segment, and the other end of the trigger plate is a movable trigger end. The locking part is formed by lateral bending and extension of the side edge of the trigger plate in the width direction. The locking part and the trigger plate form an L-shaped locking assembly. The movable clamping segment has a loosened state and a locked state. In the locked state, the movable clamping segment is locked with the locking part of the movable locking segment. When the movable clamping segment switches from the loosened state to the locked state, the movable clamping segment is subjected to a first pressure and moves toward the movable locking segment until the movable clamping segment locks with the locking part of the movable locking segment. When the movable clamping segment switches from the locked state to the loosened state, the movable locking segment is subjected to a second pressure to separate the locking part from the movable clamping segment.
[0006] Through innovative optimization of the spring structure design, a triple integration of locking, triggering, and clamping functions is achieved. Specifically, the locking section employs a lateral bending extension structure along the width of the trigger plate. This design not only significantly reduces manufacturing difficulty, making the spring easier to produce, but also greatly reduces mold complexity. Compared to traditional technical solutions, this design effectively reduces the number of components within the housing, achieving the dual advantages of structural simplification and cost reduction while ensuring functional integrity.
[0007] In one alternative embodiment, the locking part includes a transition fitting part and a locking opening connected to each other, the transition fitting part being used to guide the movable clamping line segment into the locking opening.
[0008] In one alternative embodiment, the end of the movable clamping segment that is away from the middle fixed segment is the clamping end, and the end of the clamping end is constructed as a first arc-shaped chamfer that cooperates with the locking part.
[0009] In one optional embodiment, the movable clamping segment further includes a support portion disposed between the clamped end and the intermediate fixed segment. The first connection between the support portion and the intermediate fixed segment is arc-shaped, and the second connection between the support portion and the clamped end is arc-shaped. The arc at the first connection is concave downwards, and the arc at the second connection is convex upwards.
[0010] In one optional embodiment, the top surface of the latch portion is provided with a second arc-shaped chamfer at the connection between it and the locking opening, the locking opening is recessed, and the clamped end partially extends into the locking opening in the locked state.
[0011] In one optional embodiment, the end of the trigger plate opposite to the movable trigger end is a fixed connection end, the fixed connection end is connected to the intermediate fixed section, the locking part is disposed between the movable trigger end and the fixed connection end, and the thickness of the locking part is less than the width of the clamped end.
[0012] In one optional embodiment, the intermediate fixing segment includes a first intermediate fixing segment and a second intermediate fixing segment, one end of the first intermediate fixing segment is connected to the second intermediate fixing segment, the second intermediate fixing segment is arc-shaped, and one end of the second intermediate fixing segment opposite to the first intermediate fixing segment is connected to the movable clamping line segment.
[0013] Secondly, this utility model also provides a contact terminal block, including the aforementioned spring.
[0014] In one optional embodiment, the device further includes a housing and a reset operating post. The housing has a first through hole and a second through hole. The reset operating post is slidably disposed in the first through hole. One end of the reset operating post extends out of the housing, and the other end of the reset operating post abuts against the movable clamping wire segment. The second through hole is adapted to allow a conductive wire to pass through.
[0015] In one alternative embodiment, a fluid carrier is further included, which is disposed within the housing. A gap is left between the transverse section of the fluid carrier and the movable locking section. The inner wall of the first vertical section of the fluid carrier engages with the movable clamping section in the released state to clamp the conductive wire. Attached Figure Description
[0016] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.
[0017] Figure 1 This is a schematic diagram of the spring in the released state according to an embodiment of the present invention;
[0018] Figure 2 This is a schematic diagram of the connection between the spring sheet and the fluid carrier in an embodiment of the present invention;
[0019] Figure 3 This is a schematic diagram showing the spring sheet and fluid carrier disposed inside the housing according to an embodiment of the present invention;
[0020] Figure 4 This is a schematic diagram of the spring sheet in the locked state according to an embodiment of the present invention.
[0021] Explanation of reference numerals in the attached drawings: 1. Body; 101. Movable clamping segment; 1011. Supporting part; 1012. Clamped end; 1013. First connection; 1014. Second connection; 1015. First arc-shaped chamfer; 1016. First surface; 1017. Second surface; 1018. Side surface; 102. Movable locking section; 1021. Locking part; 10211. Locking opening; 10212. Transition mating part; 1022. Trigger plate; 10221, Active trigger end; 10222, Fixed connection end; 103, Intermediate fixed section; 1031, First intermediate fixed section; 1032, Second intermediate fixed section; 1033, Electrical contact; 2, Current carrier; 201, Horizontal section; 202, First vertical section; 203, Second vertical section; 3, Housing; 301, First through hole; 302, Second through hole; 303, Slot; 304, Arc-shaped guide; 305, Test hole. Detailed Implementation
[0022] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.
[0023] The following is combined with Figures 1 to 4 The following describes embodiments of the present invention.
[0024] According to an embodiment of the present invention, a spring clip is provided, comprising: a body 1, adapted to be disposed within a housing 3; the body 1 includes a movable clamping segment 101, a movable locking segment 102, and an intermediate fixing segment 103; one end of the intermediate fixing segment 103 is connected to the movable clamping segment 101, and the other end of the intermediate fixing segment 103 is connected to the movable locking segment 102; the movable locking segment 102 includes a latching part 1021 and a trigger plate 1022; one end of the trigger plate 1022 is connected to the intermediate fixing segment 103, and the other end of the trigger plate 1022 is a movable triggering end 10221; the latching part 1021 is located on a side plate in the width direction of the trigger plate 1022. Extending in a bent direction, the latching part 1021 and the trigger plate 1022 form an L-shaped locking assembly. The movable clamping line segment 101 has a loose state and a locked state. In the locked state, the movable clamping line segment 101 is locked with the movable locking tongue segment. When the movable clamping line segment 101 switches from the loose state to the locked state, the movable clamping line segment 101 is subjected to a first pressure and moves toward the movable locking section 102 until the movable clamping line segment 101 locks with the latching part 1021 of the movable locking section 102. When the movable clamping line segment 101 switches from the locked state to the loose state, the movable locking section 102 is subjected to a second pressure to separate the latching part 1021 from the movable clamping line segment 101.
[0025] The main body 1 is adapted to be disposed within the housing 3. When the movable clamping segment 101 switches from the loosened state to the locked state, a receiving space for accommodating the conductive wire is formed between the movable clamping segment 101 and the inner wall of the housing 3. When the movable clamping segment 101 switches from the locked state to the loosened state, the conductive wire enters the receiving space. After the movable clamping segment 101 separates from the locking part 1021 of the movable locking section 102, the movable clamping segment 101 springs back and engages with the inner wall of the housing 3 to clamp the conductive wire. Through an innovative optimized design of the spring sheet structure, the triple integration of locking, triggering, and clamping functions is achieved. Among them, the locking part 1021 adopts a lateral bending extension structure on the side of the trigger plate 1022 in the width direction. This design not only significantly reduces the processing difficulty and makes the spring sheet easier to produce, but also greatly reduces the complexity of the mold. Compared with traditional technical solutions, this design effectively reduces the number of parts inside the housing 3, achieving the dual advantages of structural simplification and cost reduction while ensuring functional integrity. It should be noted that the movable clamping segment 101, the movable locking segment 102, and the intermediate fixing segment 103 in this application are integrally formed, and the body 1 is made of a conductive metal material with elastic function, such as stainless steel.
[0026] In this embodiment, as Figure 1 As shown, the X direction is the width direction, the Y direction is the length direction, and the Z direction is the height direction, and the movable clamping segment 101 is located above the movable locking segment 102 in the height direction.
[0027] In one embodiment, such as Figure 1 , Figure 2 As shown, the locking part 1021 includes a transition fitting part 10212 and a locking opening 10211 connected to each other. The transition fitting part 10212 is used to guide the movable clamping wire segment 101 into the locking opening 10211 so that the locking opening 10211 locks the movable clamping wire segment 101.
[0028] In this embodiment, as Figure 1 , Figure 4 As shown, one end of the trigger plate 1022 is connected to the intermediate fixed section 103, and the other end of the trigger plate 1022 is a movable trigger end 10221. The locking part 1021 is positioned facing the movable clamping wire section 101, and the locking part 1021 has a locking opening 10211. The inner wall of the locking opening 10211 is in contact with the first surface 1016 of the movable clamping wire section 101 in the locked state. By setting the movable trigger end 10221, the movable trigger end 10221 of the trigger plate 1022 is movable. In this way, when the movable clamping wire section is located in the locking opening 10211 in the locked state, a second pressure is applied to the movable trigger end 10221 to drive the locking part 1021 to move in the direction of the second pressure, so that the locking part 1021 separates from the movable clamping wire section 101. The movable clamping wire section 101 clamps the conductive wire under the action of the rebound force.
[0029] It should be noted that there is only one locking part 1021, and the angle between the trigger plate 1022 and the locking part 1021 is 90°. In this embodiment, the locking not only includes extending the movable clamping line segment 101 into the locking opening 10211, but also includes various connection methods such as magnetic adsorption, snap-fit of the card block slot 303, and plug-in.
[0030] In one embodiment, such as Figure 1 , Figure 2 As shown, the end of the movable clamping segment 101 that is away from the middle fixed segment 103 is the clamping end 1012. The end structure of the clamping end 1012 is a first arc-shaped chamfer 1015 that cooperates with the locking part 1021. The first arc-shaped chamfer 1015 has a guiding function. When the clamping end 1012 moves into the locking opening 10211, it avoids positional interference with the locking tongue due to the right angle between the second surface 1017 and the side surface 1018, thus playing a guiding role.
[0031] In one embodiment, such as Figure 1 , Figure 4As shown, the support portion 1011 is disposed between the clamping end 1012 and the intermediate fixing section 103. The first connection 1013 between the support portion 1011 and the intermediate fixing section 103 is arc-shaped, and the second connection 1014 between the support portion 1011 and the clamping end 1012 is arc-shaped. The arc of the first connection 1013 is concave downwards, and the arc of the second connection 1014 is convex upwards. The arc-shaped design of the first connection 1013 and the arc-shaped design of the second connection 1014 ensures that when the clamped end 1012 moves toward the locking opening 10211, the bearing part 1011 also moves toward the movable locking section 102. Since the arc directions of the first connection 1013 and the second connection 1014 are opposite, the force-applying component that applies the first pressure moves from the recess of the first connection 1013 to the protrusion of the second connection 1014 when applying force to the bearing part 1011. This ensures that the bearing part 1011 is always in contact with the force-applying component, and the protrusion of the second connection 1014 will block the sliding of the force-applying component, preventing the bearing part 1011 from slipping down quickly because it is a straight plate.
[0032] In one embodiment, such as Figure 1 As shown, the top surface of the locking part 1021 has a second arc-shaped chamfer at the connection between it and the locking opening 10211. The locking opening 10211 is recessed, and the clamped end 1012 partially extends into the locking opening 10211 in the locked state. Figure 1 As shown, the recessed direction of the locking opening 10211 is oblique and downward. The recessed locking opening 10211 is designed to accommodate the clamped end 1012. The second arc-shaped chamfer is designed to prevent the clamped end 1012 from being difficult to separate from the locking opening 10211 when they are separated.
[0033] In one embodiment, such as Figure 1 , Figure 4 As shown, the end of the trigger plate 1022 opposite to the movable trigger end 10221 is the fixed connection end 10222. The fixed connection end 10222 is connected to the intermediate fixed section 103. The locking part 1021 is located between the movable trigger end 10221 and the fixed connection end 10222. The thickness of the locking part 1021 in the X direction is less than the width of the clamped end 1012. The intermediate fixed section 103 restricts the position of the fixed connection end 10222. When the movable trigger end 10221 is subjected to a second pressure, it will drive the locking part 1021 to move, so that the locking part 1021 separates from the clamped end 1012. The thickness of the locking part 1021 is less than the width of the clamped end 1012. On the one hand, it facilitates the locking of the two and makes the locking part 1021 accurately align with the clamped end 1012 to reduce the difficulty of alignment. On the other hand, it facilitates the separation of the two and avoids the large friction that prevents them from separating during the separation process.
[0034] In one embodiment, such as Figure 1 , Figure 4 As shown, the intermediate fixed section 103 includes a first intermediate fixed section 1031 and a second intermediate fixed section 1032. One end of the first intermediate fixed section 1031 is connected to the second intermediate fixed section 1032, and the other end of the first intermediate fixed section 1031 is connected to the movable locking section 102. The second intermediate fixed section 1032 is arc-shaped, and the end of the second intermediate fixed section 1032 facing away from the first intermediate fixed section 1031 is connected to the movable clamping line section 101, so as to realize the connection of the intermediate fixed section with the movable locking section 102 and the movable clamping line section 101 respectively.
[0035] According to an embodiment of the present invention, another aspect is provided: a contact terminal block including the aforementioned spring.
[0036] In one embodiment, such as Figure 1 , Figure 2 and Figure 3 As shown, the device also includes a housing 3 and a reset operating post. The housing 3 has a first through hole 301 and a second through hole 302. The reset operating post is slidably disposed within the first through hole 301. One end of the reset operating post extends outside the housing 3, and the other end abuts against the movable clamping wire segment 101. The second through hole 302 is adapted to allow a conductive wire to pass through. Operating the reset post applies a first pressure to the clamped end 1012 of the movable clamping wire segment 101. After passing through the second through hole 302, the conductive wire abuts against the movable trigger end 10221 to apply a second pressure. It should be noted that the first and second pressures are in the same direction. It should also be noted that the housing 3 and the reset operating post in this embodiment are made of insulating materials and are non-conductive.
[0037] In this embodiment, as Figure 1 , Figure 2 and Figure 3 As shown, the first intermediate fixing segment 1031 is disposed in the slot 303 of the housing 3, with a gap between it and the arc-shaped guide portion 304 of the housing 3 near the movable clamping segment 101. The first intermediate fixing segment 1031 is installed in the slot 303 to fix the intermediate fixing segment 103, while the second intermediate fixing segment 1032 is partially fixed by the arc-shaped guide portion 304 and the housing 3. A gap is left between the second intermediate fixing segment 1032 and the arc-shaped guide portion 304 of the housing 3 near the movable clamping segment 101, and the gap is larger closer to the bearing portion 1011 to facilitate the movement of the bearing portion 1011.
[0038] In one embodiment, such as Figure 1 , Figure 2 and Figure 3As shown, it also includes a fluid carrier 2, which is disposed inside the housing 3. A gap is left between the transverse section 201 of the fluid carrier 2 and the movable locking section 102. The inner wall of the first vertical section 202 of the fluid carrier 2, in the loosened state, cooperates with the movable clamping section 101 to clamp the conductive wire. In this embodiment, the fluid carrier 2 is fitted to the inner wall of the housing 3. The fluid carrier 2 has a second vertical section 203, which is fixedly connected to the electrical contact 1033 of the first intermediate fixed section 1031. A gap is left between the transverse section 201 of the fluid carrier 2 and the movable locking section 102 to allow the movable trigger end 10221 to move toward the transverse section 201 when subjected to a second pressure. By setting the electrical contact 1033, a probe is inserted into the test hole 305 to determine whether the fluid carrier 2 is charged. Specifically, the fluid carrier 2 is made of a conductive material, preferably copper. In this embodiment, the method of fixing the second vertical segment 203 of the fluid carrier 2 to the first intermediate fixed segment 1031 is not specifically limited; the two can be fixed by welding, snap-fitting, or other methods.
[0039] A method of using a contact terminal block, wherein the movable clamping segment 101 of the spring has two states: loose and locked. When switching from the loose state to the locked state, the reset operating column is subjected to the external force of the housing 3 and applies a first pressure along the first through hole 301 toward the bearing part 1011, causing the movable clamping segment 101 to move toward the movable locking tongue segment until the clamped end 1012 enters into the locking opening 10211, the movable clamping segment 101 locks with the movable locking tongue segment, and the reset operating column stops moving, so that a receiving space for accommodating the conductive wire is formed between the movable clamping segment 101 and the inner wall of the fluid carrier 2; when switching from the locked state to the loose state, the conductive wire passes through the second through hole 301. The conductive wire extends into the receiving space, and its end contacts the movable trigger end 10221 of the trigger plate 1022. Under the second pressure of the conductive wire, the movable trigger end 10221 moves towards the transverse section 201 of the fluid carrier 2, causing the clamped end 1012 to separate from the locking part 1021. Under the elastic restoring force, the movable clamping section 101 moves away from the movable locking tongue section. The bearing part 1011 drives the reset operating column to move in the opposite direction of the first pressure direction until the movable clamping section 101 engages with the inner wall of the fluid carrier 2 to clamp the conductive wire. The conductive wire abuts against the fluid carrier 2, and the fluid carrier 2 transmits current to the conductive wire, realizing the mechanical and electrical connection. When it is necessary to replace the conductive wire, pressure is applied to the bearing part 1011 by the reset operating column until the clamped end 1012 enters the locking opening 10211. Then, the conductive wire can be pulled out of the second through hole 302 for replacement. It should be noted that the first pressure in this embodiment is smaller than the second pressure.
[0040] The spring provided by this utility model has the following advantages: (1) By setting the body 1, the clamping and loosening of the conductive wire can be achieved by only the cooperation of the body 1 and the housing 3, so as to reduce the number of parts in the housing 3, which has the advantages of simple structure and low cost; (2) The shape and structure of the spring is easier to process and form, the mold design is easier, which is conducive to mass production and the production cost is lower; (3) The spring can realize the reciprocating cycle of "loose state → locked state → loose state → locked state...", which is convenient for the replacement of conductive wire; (4) When switching from the locked state to the loose state, the conductive wire triggers the active trigger end 10221 more smoothly, and the operating force of the applied second pressure is smaller, which is conducive to batch operation.
[0041] As an alternative implementation, the material of the body 1 can also be a flexible conductive material such as copper, aluminum, tungsten, or zinc.
[0042] As an alternative implementation, the number of locking parts 1021 may be two, three or even more, with adjacent locking parts 1021 arranged in parallel.
[0043] As an alternative implementation, the material of the fluid carrier 2 can also be a conductive material such as silver, iron, aluminum, or tungsten.
[0044] As an alternative implementation, the included angle between the trigger plate 1022 and the latching part 1021 can be other angles, such as 30°, 45°, 60°, etc.
[0045] Although embodiments of the present invention have been described in conjunction with the accompanying drawings, those skilled in the art can make various modifications and variations without departing from the spirit and scope of the present invention, and such modifications and variations all fall within the scope defined by the appended claims.
Claims
1. A sheet of pellets, characterized in that, include: The body (1) includes a movable clamping segment (101), a movable locking segment (102), and an intermediate fixed segment (103). One end of the intermediate fixed segment (103) is connected to the movable clamping segment (101), and the other end of the intermediate fixed segment (103) is connected to the movable locking segment (102). The movable locking segment (102) includes a latching part (1021) and a trigger plate (1022). One end of the trigger plate (1022) is connected to the intermediate fixed segment (103), and the other end of the trigger plate (1022) is a movable triggering end (10221). The latching part (1021) is formed by lateral bending and extension of the side of the trigger plate (1022) in the width direction. The latching part (1021) and the trigger plate... (1022) forms an L-shaped locking assembly. The movable clamping segment (101) has a loosened state and a locked state. In the locked state, the movable clamping segment (101) is locked with the latch (1021) of the movable locking section (102). When the movable clamping segment (101) switches from the loosened state to the locked state, the movable clamping segment (101) is subjected to a first pressure and moves toward the movable locking section (102) until the movable clamping segment (101) locks with the latch (1021) of the movable locking section (102). When the movable clamping segment (101) switches from the locked state to the loosened state, the movable locking section (102) is subjected to a second pressure to separate the latch (1021) from the movable clamping segment (101).
2. The dart of claim 1, wherein, The locking part (1021) includes a transition fitting part (10212) and a locking opening (10211) connected to each other. The transition fitting part (10212) is used to guide the movable clamping line segment (101) into the locking opening (10211).
3. The dart of claim 2, wherein, The end of the movable clamping segment (101) that is away from the middle fixed segment (103) is the clamping end (1012), and the end of the clamping end (1012) is constructed as a first arc-shaped chamfer (1015) that cooperates with the locking part (1021).
4. The dart of claim 3, wherein, The movable clamping segment (101) also includes a support portion (1011), which is located between the clamped end (1012) and the intermediate fixed segment (103). The first connection point (1013) between the support portion (1011) and the intermediate fixed segment (103) is arc-shaped, and the second connection point (1014) between the support portion (1011) and the clamped end (1012) is arc-shaped. The arc of the first connection point (1013) is concave downwards, and the arc of the second connection point (1014) is convex upwards.
5. The dart of claim 3, wherein, The top surface of the latch (1021) is provided with a second arc-shaped chamfer at the connection between it and the locking opening (10211). The locking opening (10211) is recessed, and the clamped end (1012) extends into the locking opening (10211) in the locked state.
6. The dart of claim 2, wherein, The end of the trigger plate (1022) facing away from the active trigger end (10221) is a fixed connection end (10222). The fixed connection end (10222) is connected to the intermediate fixed section (103). The locking part (1021) is located between the active trigger end (10221) and the fixed connection end (10222). The thickness of the locking part (1021) is less than the width of the clamped end (1012).
7. The dart of any of claims 1-6, wherein, The intermediate fixing section (103) includes a first intermediate fixing segment (1031) and a second intermediate fixing segment (1032). One end of the first intermediate fixing segment (1031) is connected to the second intermediate fixing segment (1032), and the other end of the first intermediate fixing segment (1031) is connected to the movable locking segment (102). The second intermediate fixing segment (1032) is arc-shaped, and the end of the second intermediate fixing segment (1032) facing away from the first intermediate fixing segment (1031) is connected to the movable clamping line segment (101).
8. A touch terminal station, characterized by comprising: Includes the spring sheet as described in any one of claims 1-7.
9. The contact terminal block according to claim 8, characterized in that, It also includes a housing (3) and a reset operation post. The housing (3) is provided with a first through hole (301) and a second through hole (302). The reset operation post is slidably provided in the first through hole (301). One end of the reset operation post extends out of the housing (3) and the other end of the reset operation post abuts against the movable clamping wire segment (101). The second through hole (302) is suitable for passing through a conductive wire.
10. The contact terminal block of claim 9, wherein, It also includes a fluid carrier (2), which is disposed inside the housing (3). A gap is left between the transverse section (201) and the movable locking section (102) of the fluid carrier (2). The inner wall of the first vertical section (202) of the fluid carrier (2) cooperates with the movable clamping section (101) in the loosened state to clamp the conductive wire.