Junction box

Abstract

The utility model relates to a junction box, comprising a pedestal used for bearing a circuit board, a wiring terminal electrically connected to the circuit board, and a cable electrically connected to the wiring terminal; the top cover is installed on the base in a buckling mode, and the top cover and the base jointly define a first space used for containing the circuit board, a second space used for containing the wiring terminal and a third space used for containing the cable; the base clamping piece is arranged on the base; the top cover clamping piece is arranged on the top cover, so that the cable with the first size is clamped between the base clamping piece and the top cover clamping piece; and the movable accessory is used for being selectively mounted on the base, so that the cable with the second size is clamped between the movable accessory and the top cover clamping piece. According to the junction box provided by the utility model, the wiring and the driver are integrated in the same shell, so that the junction box is easy to assemble and disassemble, and good appearance and user experience effects are realized.

Description

Technical Field

[0001] The utility model relates to a junction box. Background Art

[0002] A junction box, also known as a wiring box or a terminal box, is a device used in electrical installations for connecting and distributing electric wires or cables. It usually contains multiple terminal blocks, which can be screw type, plug-in type or other forms, for fixing and connecting electric wires. The junction box can protect the wire connections from the influence of the external environment, such as moisture, dust, etc., and at the same time facilitates the maintenance and repair of the circuit. The junction box provided by the prior art adopts an independent cable clamping and an independent housing for terminals or cables, which makes the installation and disassembly of the junction box complicated and difficult, and also limits the wire diameter of the cables to be adapted. Summary of the Utility Model

[0003] In view of this, an embodiment of the present utility model provides a novel junction box. The junction box integrates the driver and the wiring function in the same housing, achieving a good appearance and user experience effect, and also optimizing the junction box with less workload and cost compared with the prior art, enabling the junction box to be assembled and disassembled more simply and quickly, and at the same time enabling the junction box to be adapted to cables with different wire diameters.

[0004] According to a preferred embodiment of the present utility model, there is provided a junction box, which includes: a base for carrying a circuit board, terminal blocks electrically connected to the circuit board, and cables electrically connected to the terminal blocks; a top cover installed on the base in a snap-fit manner, jointly defining a first space for accommodating the circuit board, a second space for accommodating the terminal blocks, and a third space for accommodating the cables with the base; a base clamping member provided on the base; a top cover clamping member provided on the top cover, such that a cable with a first size is clamped between the base clamping member and the top cover clamping member; and a movable fitting for selectively installing on the base, such that a cable with a second size is clamped between the movable fitting and the top cover clamping member. The junction box designed in this way can achieve the effect of clamping and fixing the cable in the junction box when the top cover is installed on the base.

[0005] According to an exemplary embodiment of the present utility model, the top cover includes a first cover body and a second cover body that are independent of each other. Among them, the first space is defined by the first cover body, and the second space and the third space are defined by the second cover body. Multiple different functional areas for the driver and wiring are defined by different cover bodies.

[0006] According to an exemplary embodiment of the present utility model, the base is bolted to the second cover via a linear connecting member, wherein the base, the linear connecting member, and the second cover are integrally formed. Thereby, when installing the cable, it is prevented that the top cover accidentally falls off the base, eliminating the trouble of searching for the top cover again.

[0007] According to an exemplary embodiment of the present utility model, the base clamping member includes a bridge-shaped member protruding from the surface of the base, wherein a toothed profile for clamping the cable is provided on the bridge-shaped member. The bridge-shaped member provided by the base clamping member provides effective clamping of the cable, can advantageously adapt to the outer contour of the cable, and provides appropriate form fit and friction force.

[0008] According to an exemplary embodiment of the present utility model, the top cover clamping member includes a bridge-shaped member protruding from the surface of the second cover, wherein a toothed profile for clamping the cable is provided on the bridge-shaped member. The top cover clamping member can provide effective clamping of the cable, can advantageously adapt to the outer contour of the cable, and provides appropriate form fit and friction force.

[0009] According to an exemplary embodiment of the present utility model, the base clamping member is integrally formed with the base, and the top cover clamping member is integrally formed with the second cover. Thereby, the manufacturing of the base and the top cover is simplified, the manufacturing cost and processes are saved, and the number of components of the junction box is reduced.

[0010] According to an exemplary embodiment of the present utility model, the junction box includes an opening for guiding the cable into the third space, wherein the opening is jointly defined by a semi-circular first profile provided on the edge of the second cover and a semi-circular second profile provided on the edge of the base. Cables with different wire diameters can be easily inserted into the interior of the junction box, facilitating the connection of the cable to the terminal.

[0011] According to an exemplary embodiment of the present utility model, the base includes a limiting wall provided in the third space to define an installation position for the movable fitting. When the movable fitting is installed in the installation position, the movable fitting is surrounded by the limiting wall and sleeved on the base clamping member, wherein the limiting wall includes a semi-circular third profile corresponding to the first profile and the second profile. Thus, in order to facilitate the installation of a cable with a smaller wire diameter, the movable fitting can be easily installed on the base of the junction box and adapted to the clamping member already provided in the base, saving the installation space in the junction box.

[0012] According to an exemplary embodiment of the present utility model, the movable fitting includes a base portion and a bridge-shaped member extending from the base portion and protruding towards the top cover in a deformable manner relative to the base portion. The movable fitting can have a similar appearance or contour to the base clamping member. When installing the movable fitting, the movable fitting can be easily sleeved on the clamping member, and at the same time, it provides a clamping force and effect similar to that of the clamping member.

[0013] According to an exemplary embodiment of the present utility model, the base portion has an annular shape, and the bridge member extends from a first edge of the base portion to a second edge opposite the first edge and includes a toothed profile that protrudes relative to the base portion. The bridge member has a simple structure, which is convenient for manufacturing and can advantageously provide a form fit and proper clamping force for the cable.

[0014] According to an exemplary embodiment of the present utility model, the base, the top cover, the base clamping member, the top cover clamping member, and the movable fitting are all made of the same material. Thereby, the manufacturing of the junction box is simplified, the manufacturing cost and engineering are saved, and the design of the junction box is optimized with fewer spare parts. Description of the Drawings

[0015] The preferred embodiments of the present utility model will be described in detail below with reference to the accompanying drawings, so that those of ordinary skill in the art can more clearly understand the above and other features and advantages of the present utility model. In the drawings:

[0016] Figure 1 A schematic diagram showing a junction box according to an embodiment of the present utility model.

[0017] Figure 2 A schematic diagram showing a movable fitting according to an embodiment of the present utility model.

[0018] Figure 3 A cross-sectional schematic diagram showing a junction box with a cable of a first wire diameter installed according to an embodiment of the present utility model.

[0019] Figure 4 A cross-sectional schematic diagram showing a junction box with a cable of a second wire diameter installed according to an embodiment of the present utility model.

[0020] Figure 5 A cross-sectional schematic diagram showing a junction box with a cable of a third wire diameter installed according to an embodiment of the present utility model. Detailed Description of the Embodiments

[0021] To make the purpose, technical solutions, and advantages of the present utility model clearer, the following embodiments will further describe the present utility model in detail.

[0022] Figure 1 A schematic diagram showing a junction box according to an embodiment of the present utility model. In Figure 1In an embodiment, the junction box includes: a base 10 for carrying a circuit board, terminal blocks electrically connected to the circuit board, and cables electrically connected to the terminal blocks; a top cover 20 detachably mounted on the base 10, jointly defining with the base 10 a first space for accommodating the circuit board, a second space for accommodating the terminal blocks, and a third space for accommodating the cables; a base clamping member 30 provided on the base 10; a top cover clamping member 40 provided on the top cover 20 such that a cable having a first dimension is clamped between the base clamping member 30 and the top cover clamping member 40; and a movable fitting 50 for selectively mounting on the base 10 such that a cable having a second dimension is clamped between the movable fitting 50 and the top cover clamping member 40. For example, the cable is a power cord from a power source, and one end of the power cord is connected to the terminal block of the junction box and clamped inside the junction box through the top cover of the junction box.

[0023] In Figure 1 In an embodiment, the top cover 20 includes an independent first cover body 21 and a second cover body 22, wherein the first space 201 is defined by the first cover body 21, and the second space 202 and the third space 203 are defined by the second cover body 22. The first cover body 21 and the second cover body 22 are respectively connected to the base 10 in a snap-fit manner. For example, fixing members are provided on the edge of the base, and locking members are provided on the edges of the first cover body 21 and the second cover body 22, so that the aforementioned snap-fit connection is achieved by locking the locking members with the corresponding fixing members. The base 10 is bolted to the second cover body 22 via a linear connecting member 60, wherein the base 10, the linear connecting member 60, and the second cover body 22 are integrally formed, for example, made of PA6 nylon material.

[0024] The base clamping member 30 includes a bridge member 31 protruding from the surface of the base 10, and a toothed profile for clamping the cable is provided on the bridge member 31. The junction box includes an opening 70 for guiding the cable into the third space 203, and the opening 70 is jointly defined by a semi-circular first profile 71 provided on the edge of the second cover body 22 and a semi-circular second profile 72 provided on the edge of the base 10. The base 10 includes a limiting wall 11 provided in the third space 203 to define the installation position of the movable fitting 50. When the movable fitting 50 is installed in the installation position, the movable fitting 50 is surrounded by the limiting wall 11 and sleeved on the base clamping member 30, and the limiting wall 11 includes a semi-circular third profile 73 corresponding to the first profile and the second profile. The base clamping member 30 is integrally formed with the base 10. In addition, the top cover clamping member 40 includes a bridge member 41 protruding from the surface of the second cover body 22, and a toothed profile for clamping the cable is provided on the bridge member 41. The top cover clamping member 40 is integrally formed with the second cover body 22, for example, both are made of PA6 nylon material. In this embodiment, the base 10, the top cover 20, the base clamping member 30, the top cover clamping member 40, and the movable fitting 50 are all made of the same material, for example, all are made of PA6 nylon material.

[0025] Figure 2 Schematic diagram showing a movable fitting according to an embodiment of the present invention. In Figure 2 In the embodiment, the movable fitting 50 includes a base portion 51 and a bridge member 52 extending from the base portion 51 and protruding towards the top cover relative to the base portion 51 in a deformable manner. The base portion 51 has an annular shape, and the bridge member 52 extends from a first edge of the base portion 51 to a second edge opposite to the first edge and includes a toothed profile protruding relative to the base portion 51.

[0026] Figure 3 Cross-sectional schematic diagram showing a junction box installed with a cable of a first wire diameter according to an embodiment of the present invention. In Figure 3 In the shown embodiment, the cable 80 has a first wire diameter. In order to electrically connect the cable 80 to the terminal 81 in the junction box and fix it in the junction box, the movable fitting 50 is installed or sleeved on the base clamping member 30, so that the cable 80 is clamped between the movable fitting 50 or the toothed profile of the movable fitting 50 and the toothed profile of the top cover clamping member 40.

[0027] Figure 4 Cross-sectional schematic diagram showing a junction box installed with a cable of a second wire diameter according to an embodiment of the present invention. In Figure 4 In the shown embodiment, the cable 80 has a second wire diameter. In order to electrically connect the cable 80 to the terminal 81 in the junction box and fix it in the junction box, compared with Figure 3In the embodiment, the movable fitting is not installed or sleeved on the base clamping member 30, so the cable 80 having the second wire diameter is clamped between the base clamping member 30 or the tooth profile of the base clamping member 30 and the tooth profile of the top cover clamping member 40.

[0028] Figure 5 FIG. shows a cross-sectional schematic view of a junction box installed with a cable having a third wire diameter according to an embodiment of the present invention. In Figure 5 In the shown embodiment, the cable 80 has a third wire diameter, and the cable 80 has a sleeve 82 for the third wire diameter and a wire 83 disposed inside the sleeve. In order to electrically connect the cable 80 to the terminal 81 in the junction box and fix it in the junction box, compared with Figure 3 the embodiment, the movable fitting is not installed or sleeved on the base clamping member 30, so the wire 83 of the cable 80 is clamped between the base clamping member 30 or the tooth profile of the base clamping member 30 and the tooth profile of the top cover clamping member 40, and at the same time, the sleeve 82 of the cable 80, such as the end of the sleeve 82, is fixed at the entrance of the junction box.

[0029] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0030] It should be noted that the terms "first", "second", etc. in the specification, claims and drawings of the present application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged under appropriate circumstances so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein.

[0031] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A junction box, characterized in that, Comprising: A base (10) for carrying a circuit board, terminal blocks electrically connected to the circuit board, and a cable (80) electrically connected to the terminal blocks; A top cover (20) mounted on the base (10) in a snap-fit manner, jointly defining with the base (10) a first space (201) for accommodating the circuit board, a second space for accommodating the terminal blocks, and a third space for accommodating the cable (80); A base clamping member (30) provided on the base (10); A top cover clamping member (40) provided on the top cover (20), such that the cable (80) having a first size is clamped between the base clamping member (30) and the top cover clamping member (40); and A movable fitting (50) for selectively mounting on the base (10), such that the cable (80) having a second size is clamped between the movable fitting (50) and the top cover clamping member (40).

2. The junction box according to claim 1, characterized in that, The top cover (20) includes a first cover body (21) and a second cover body (22) that are independent of each other. Among them, the first space (201) is defined by the first cover body (21), and the second space (202) and the third space (203) are defined by the second cover body (22).

3. The junction box according to claim 2, wherein The base (10) is bolted to the second cover body (22) via a linear connecting member (60), where the base (10), the linear connecting member (60), and the second cover body (22) are integrally formed.

4. The junction box according to claim 2, characterized in that, The base clamping member (30) includes a bridge-shaped member (31) protruding from the surface of the base (10), and a toothed profile for clamping the cable (80) is provided on the bridge-shaped member (31).

5. The junction box according to claim 2, characterized in that, The top cover clamping member (40) includes a bridge-shaped member (41) protruding from the surface of the second cover body (22), and a toothed profile for clamping the cable (80) is provided on the bridge-shaped member (41).

6. The junction box according to claim 2, characterized in that, The base clamping member (30) is integrally formed with the base (10), and the top cover clamping member (40) is integrally formed with the second cover body (22).

7. The junction box according to claim 2, characterized in that, The junction box includes an opening (70) for guiding the cable (80) into the third space (203), where the opening (70) is jointly defined by a semi-circular first profile (71) provided on the edge of the second cover body (22) and a semi-circular second profile (72) provided on the edge of the base (10).

8. The junction box according to claim 7, characterized in that, The base (10) includes a limiting wall (11) provided in the third space (203) to define the installation position of the movable fitting (50). When the movable fitting (50) is installed in the installation position, the movable fitting (50) is surrounded by the limiting wall (11) and sleeved on the base clamping member (30). Among them, the limiting wall (11) includes a semi-circular third profile (73) corresponding to the first profile (71) and the second profile (72).

9. The junction box according to claim 1, characterized in that, The movable fitting (50) includes a base portion (51) and a bridge member (52) extending from the base portion (51) and protruding relative to the base portion (51) in a deformable manner toward the top cover (20).

10. The junction box according to claim 9, wherein The base portion (51) has an annular shape, and the bridge member (52) extends from a first edge of the base portion (51) to a second edge opposite to the first edge and includes a toothed profile protruding relative to the base portion (51).

11. The junction box according to claim 1, characterized in that, The base (10), the top cover (20), the base clamping member (30), the top cover clamping member (40), and the movable fitting (50) are all made of the same material.

Images