Connection terminal for connecting at least one electrical conductor
By integrally injection molding the control element and the insulating housing in the terminal block and separating them at the rated fracture position, the problem of high costs associated with separate manufacturing and assembly of parts is solved, resulting in cost reduction and improved stability.
Patent Information
- Application Number
- CN202422020828.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Priority Date
- 2024-07-30
- Filing Date
- 2024-08-20
- Publication Date
- 2025-11-11
- Estimated Expiration
- 2034-08-20
AI Technical Summary
The current process of manufacturing and assembling components separately for terminal blocks is costly, leading to increased manufacturing and assembly costs.
The control element is integrally injection molded onto the insulating housing via the connection point and separates from the housing at the rated break point, simplifying the manufacturing and assembly process.
This reduces manufacturing and assembly costs and improves the stability and production efficiency of the terminal blocks.
Smart Images
Figure CN223539925U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a terminal block for connecting at least one electrical conductor, having an insulating material housing, wherein at least one wiring position for the at least one electrical conductor is constructed in the insulating material housing, wherein the at least one wiring position has a busbar arranged in the insulating material housing, a clamping spring arranged in the insulating material housing for clamping the conductor to be connected relative to the busbar, and an operating element for actuating the clamping spring. Background Technology
[0002] In these types of terminal blocks, all components are typically designed to exist as individual parts. Therefore, these parts must be manufactured separately and then painstakingly assembled afterwards. Utility Model Content
[0003] The objective of this invention is to provide a terminal block that reduces manufacturing and assembly costs.
[0004] According to this invention, the objective is achieved using the features of the independent claim. Suitable designs and advantageous improvements of this invention are given in the dependent claims.
[0005] The terminal block according to this utility model is characterized in that the operating element is integrally injection molded onto the insulating material housing through at least one connection position, and the at least one connection position has a rated break position. During final assembly, the operating element can be detached from the insulating material housing through the rated break position at the at least one connection position and can be pushed into the operating opening of the insulating material housing.
[0006] According to this invention, the actuating element at the connection position is integrally constructed with the insulating material housing during injection molding. Therefore, the actuating element can be constructed together with the insulating material housing in a single manufacturing step. This means that in subsequent assembly processes, it is unnecessary to transport and assemble separately manufactured actuating elements. The actuating element, injection-molded onto the insulating material housing during manufacturing, can be separated from the insulating material housing and pushed or pressed into it during final assembly. This reduces not only manufacturing and assembly costs but also manufacturing and assembly expenses. The actuating element is injection-molded onto the insulating material housing through at least one connection position. To ensure that the actuating element can be easily and precisely disengaged at this connection position during final assembly, the connection position has a rated break position. The rated break position can be constructed such that axial movement of the actuating element toward the actuation opening of the insulating material housing causes the rated break position to open, thereby separating the actuating element from the insulating material housing and allowing it to be pushed into the actuation opening. The rated break position can be constructed, for example, by reducing material in this area. Therefore, during final assembly, the actuating element can be pushed or pressed into the insulating housing or into the actuating opening of the insulating housing. This subsequently separates or tears at least one connection point in a defined manner. The actuating element can then be further pushed into the insulating housing until it reaches its final position. The actuating element can be constructed from the same insulating material as the insulating housing, particularly the same plastic material.
[0007] Preferably, in the post-injection molded state, the actuating element is positioned in front of the actuating opening. Thus, the actuating element can be located outside the actuating opening before final assembly. Only during final assembly, after the actuating element has disengaged at its rated break position at the connection point, does the actuating element enter the actuating opening. Therefore, it is preferable not to injection mold the actuating element into the actuating opening itself. Therefore, before final assembly, it is preferable that the entire actuating element protrudes or extends from the insulating housing. Here, in the post-injection molded state, the actuating element is preferably positioned aligned with the actuating opening such that when the connection point is disengaged, the actuating element only needs axial movement to be pushed into the actuating opening of the insulating housing specifically provided for the actuating element.
[0008] At least one connection location is preferably constructed on the edge region of the operating opening. The edge region is preferably the outer edge region of the operating opening. The operating element is preferably injection-molded into the insulating material housing with the operating region, and the operating element operates the clamping spring by means of the operating region. By constructing the connection location on the edge region of the operating opening, the operating element can protrude as much as possible from the operating opening in the post-injection molded state, or be spaced apart from the operating opening.
[0009] Particularly preferably, the actuating element is injection molded onto the insulating material housing not only through one connection point, but also through a first connection point and a second connection point. The actuating element can be integrally constructed with the insulating material housing at two points, or in two separate regions. This significantly improves the stability of the actuating element supported on the insulating material housing in the post-injection molded state. Furthermore, the actuating element is joined to the insulating material housing at two connection points, achieving uniform filling of the actuating element during the injection molding process. Here, the first connection point is preferably arranged spaced apart from the second connection point. Thus, each connection point has a rated breakage position. These two connection points can be constructed on two different sides of the actuating element.
[0010] A first connection position can be constructed on a first edge region of the operating opening, and a second connection position can be constructed on a second edge region of the operating opening, wherein the first edge region can extend laterally to the second edge region. Therefore, the two connection positions can be constructed as adjacent edge regions that extend laterally to each other or at right angles. Thus, the two connection positions can be positioned at right angles to each other, which has the advantage that, in the post-injection molded state, the operating element can be connected to the insulating housing with very stable shape. This enables deformation-free transport and storage of the terminals until final assembly or the final assembly process. For example, the first connection position can engage on the underside of the operating element. The second connection position can, for example, engage on the longitudinal side of the operating element, which extends laterally to the underside of the operating element.
[0011] Particularly preferably, the insulating housing can be configured with two or more wiring positions. A cable can be connected to each wiring position separately. For this purpose, each wiring position has an actuating element, as described above, which is integrally injection-molded into the insulating housing via at least one connection position having a rated break point. Thus, during final assembly, these actuating elements can be detached from the insulating housing at at least one connection position and can be pushed into their respective actuating openings within the insulating housing. Therefore, the wiring positions or terminals do not need to be individually injection-molded, assembled, and interlocked; instead, these can be molded together as a multi-pole insulating housing. This allows for a very robust terminal design. Attached Figure Description
[0012] The present invention will now be explained in detail with reference to the accompanying drawings and preferred embodiments.
[0013] It shows that:
[0014] Figure 1The schematic cross-sectional view of the wiring terminal of this utility model after final assembly is shown below.
[0015] Figures 2A to 2C :exist Figure 1 The diagram shown is of the terminal blocks before final assembly.
[0016] Figure 3 :exist Figures 2A to 2C The diagram shows a schematic cross-sectional view of the wiring terminals before final assembly. Detailed Implementation
[0017] Figure 1 A terminal block 100 is shown, in which three electrical conductors can be connected. The terminal block 100 has an insulating housing 110. In the design shown here, three connection positions 111A, 111B, and 111C are constructed in the insulating housing 110, such that the terminal block 100 is configured as a three-pole terminal. Each connection position 111A, 111B, and 111C has a busbar 112A arranged in the insulating housing 110; a clamping spring 113A arranged in the insulating housing 110 for clamping the conductors to be connected relative to the busbar 112A; and actuating elements 114A, 114B, and 114C for actuating the clamping spring 113A.
[0018] As in Figure 1 As can be seen, after final assembly, the operating elements 114A, 114B, and 114C are supported in the operating openings 115A, 115B, and 115C of the insulating material housing 110 in a linearly movable manner.
[0019] exist Figures 2A to 2C The diagram shows the terminal block 100 before final assembly.
[0020] All three actuating elements 114A, 114B, and 114C are integrally injection-molded onto the insulating housing 110 via their respective two connection positions 116A, 116B, 116C and 117A, 117B, 117C. The connection positions 116A, 116B, 116C and 117A, 117B, 117C each have a rated break point. During final assembly, the actuating elements 114A, 114B, and 114C at the connection positions 116A, 116B, 116C, 117A, 117B, 117C can be detached from the insulating housing 110 via the rated break point and can be pushed into the corresponding actuating openings 115A, 115B, and 115C of the insulating housing 110. The rated fracture location can be constructed by reducing the amount of material in the areas of the corresponding connection locations 116A, 116B, 116C, 117A, 117B, and 117C.
[0021] For example, in particular Figure 2A and Figure 2B As can be seen, the actuating elements 114A, 114B, and 114C are positioned in front of the corresponding actuating openings 115A, 115B, and 115C in the post-injection molded state. Specifically, the actuating regions 118A, 118B, and 118C of the actuating elements 114A, 114B, and 114C are also positioned in front of the actuating openings 115A, 115B, and 115C. The actuating regions 118A, 118B, and 118C are the areas of the actuating elements 114A, 114B, and 114C that act directly on the corresponding clamping springs 113A, 113B, and 113C to actuate these clamping springs. The actuating regions 118A, 118B, and 118C are constructed on the free ends of the actuating elements 114A, 114B, and 114C pointing towards the actuating openings 115A, 115B, and 115C.
[0022] In the post-injection molded state, the actuating elements 114A, 114B, and 114C are aligned with their corresponding actuating openings 115A, 115B, and 115C, respectively. This arrangement allows the actuating elements 114A, 114B, and 114C to disengage at their corresponding connection positions 116A, 116B, 116C, 117A, 117B, and 117C solely through axial movement, and they can be directly pushed into or pressed into the actuating openings 115A, 115B, and 115C. In particular, the corresponding connection positions 116A, 116B, 116C, 117A, 117B, and 117C can be disengaged by breaking at a rated fracture point.
[0023] Connection points 116A, 116B, 116C, 117A, 117B, and 117C are respectively arranged on the edge regions 119A, 119B, 119C, 120A, 120B, and 120C of the operating openings 115A, 115B, and 115C. The edge regions 119A, 119B, 119C, 120A, 120B, and 120C respectively constitute the outer edges of the operating openings 115A, 115B, and 115C.
[0024] For each wiring position 111A, 111B, 111C, there are actuating elements 114A, 114B, 114C integrally injection molded onto the insulating material housing 110 at the edge regions 119A, 119B, 119C and 120A, 120B, 120C of the actuating openings 115A, 115B, 115C. For each wiring position 111A, 111B, 111C, there are edge regions 119A, 119B, 119C, 120A, 120B, 120C of the actuating openings 115A, 115B, 115C extending laterally to each other. Therefore, for example, at the first wiring position 111A, the first connection position 116A is constructed on the first edge region 119A, which is directly adjacent to and extends laterally to or perpendicularly to the second edge region 120A, on which the second connection position 117A is constructed. Thus, the two connection positions 116A, 116B, 116C and 117A, 117B, 117C of the wiring positions 111A, 111B, 111C are constructed on the adjacent edge regions 119A, 119B, 119C and 120A, 120B, 120C of the corresponding operating openings 115A, 115B, 115C, which extend laterally to or perpendicularly to each other.
[0025] First connection positions 116A, 116B, 116C are engaged with the lower sides 121A, 121B, 121C of the actuating elements 114A, 114B, 114C. Second connection positions 117A, 117B, 117C are engaged with the longitudinal sides 122A, 122B, 122C of the actuating elements 114A, 114B, 114C, which extend laterally to the lower sides 121A, 121B, 121C. Therefore, in the post-injection molded state, each actuating element 114A, 114B, 114C is engaged with the insulating material housing 110 via its lower sides 121A, 121B, 121C and its longitudinal sides 122A, 122B, 122C. The design shown here indicates that the lower sides 121A, 121B, 121C of the operating elements 114A, 114B, 114C face the conductor introduction openings 123A, 123B, 123C of the respective wiring positions 111A, 111B, 111C.
[0026] Figure 3 The diagram shows corresponding cross-sectional views of the area on the lower side 121A of the control element 114A and in the area of the first connection position 116A on the first edge region 119A of the control opening 115A.
[0027] Explanation of reference numerals in the attached figures
[0028] 100 terminal blocks
[0029] 110 Insulating Material Housing
[0030] Wiring positions for 111A, 111B, and 111C
[0031] 112A Busbar
[0032] 113A Clamping Spring
[0033] 114A, 114B, 114C control elements
[0034] 115A, 115B, 115C Operating Opening
[0035] 116A, 116B, 116C First Connection Position
[0036] Second connection positions 117A, 117B, and 117C
[0037] 118A, 118B, 118C Operating Areas
[0038] 119A, 119B, 119C First Edge Region
[0039] 120A, 120B, 120C Second Edge Region
[0040] The lower side of 121A, 121B, and 121C
[0041] 122A, 122B, 122C longitudinal sides
[0042] Conductors 123A, 123B, and 123C are introduced into the opening.
Claims
1. A terminal block (100) for connecting at least one electrical conductor, the terminal block having an insulating material housing (110) in which at least one wiring position (111A, 111B, 111C) for said at least one electrical conductor is configured, wherein, The at least one connection position (111A, 111B, 111C) has a busbar (112A) arranged in an insulating material housing (110); a clamping spring (113A) arranged in the insulating material housing (110) for clamping the conductor to be connected relative to the busbar (112A); and an actuating element (114A, 114B, 114C) for actuating the clamping spring (113A), characterized in that the actuating element (114A, 114B, 114C) is connected via at least one connection position (116A, 116B, 116C, 117A, 117B, 114C). 17C) is integrally injection molded onto the insulating material housing (110), and the at least one connection position (116A, 116B, 116C, 117A, 117B, 117C) has a rated break position, such that during final assembly, the operating element (114A, 114B, 114C) can be disengaged from the insulating material housing (110) at at least one connection position (116A, 116B, 116C, 117A, 117B, 117C) through the rated break position, and can be pushed into the operating opening (115A, 115B, 115C) of the insulating material housing (110).
2. The terminal block (100) according to claim 1, characterized in that, In the post-injection molding state, the actuating elements (114A, 114B, 114C) are positioned in front of the actuating openings (115A, 115B, 115C).
3. The terminal block (100) according to claim 1 or 2, characterized in that, The at least one connection location (116A, 116B, 116C, 117A, 117B, 117C) is constructed on the edge region (119A, 119B, 119C, 120A, 120B, 120C) of the operating opening (115A, 115B, 115C).
4. The terminal block (100) according to claim 1, characterized in that, The control elements (114A, 114B, 114C) are injection molded onto the insulating material housing (110) through the first connection position (116A, 116B, 116C) and through the second connection position (117A, 117B, 117C).
5. The terminal block (100) according to claim 4, characterized in that, The first connection positions (116A, 116B, 116C) are constructed on the first edge regions (119A, 119B, 119C) of the operating openings (115A, 115B, 115C), and the second connection positions (117A, 117B, 117C) are constructed on the second edge regions (120A, 120B, 120C) of the operating openings (115A, 115B, 115C), wherein the first edge regions (119A, 119B, 119C) extend laterally to the second edge regions (120A, 120B, 120C).
6. The terminal block (100) according to claim 1, characterized in that, Two or more wiring positions (111A, 111B, 111C) are constructed in the insulating housing (110).