Terminal box

Abstract

The utility model belongs to the technical field of low-voltage electric appliances, and discloses a terminal box, which comprises a box body, an electric device and a baffle plate, and is characterized in that the side wall of the box body is provided with a threading hole; the electric device is detachably arranged in the box body, and a wire electrically connected with the electric device can penetrate through the threading hole; the baffle comprises a shielding part and a receding part, the receding part is provided with two clamping jaws, the baffle is detachably arranged on the box body, and the baffle has a first installation angle and a second installation angle relative to the box body. According to the terminal box provided by the utility model, the baffle plate is installed on the box body at the first installation angle, the abdicating part of the baffle plate clamps the wire through the two clamping jaws so as to fix the wire, and the abdicating part has a certain shielding effect on the threading hole; and the baffle plate is installed on the box body at a second installation angle, and the baffle plate shields the threading hole through the shielding part.

Description

Technical Field

[0001] The utility model relates to the technical field of low-voltage electrical appliances, in particular to a terminal box. Background Art

[0002] The terminal box includes a terminal box body and low-voltage electrical devices, such as circuit breakers, arranged in the box body, which are widely used in the control and protection of the power terminals of various mechanical equipment. Among them, the terminal box body is an important component for protecting low-voltage electrical devices, realizing effective isolation of low-voltage electrical devices from the outside world.

[0003] In the prior art, the terminal box has wiring holes for the wires to pass through, but the wiring holes have a single size and cannot fix the wires, resulting in poor reliability. In addition, there is a gap between the wiring holes and the wires, resulting in poor moisture-proof, dust-proof and insect-proof effects, posing certain safety hazards. Utility Model Content

[0004] The utility model aims to provide a terminal box which can fix wires and has good moisture-proof, dust-proof and insect-proof effects and is safe and reliable.

[0005] To achieve this purpose, the utility model adopts the following technical solutions:

[0006] A terminal box is provided, comprising:

[0007] A box body, wherein the side wall of the box body is provided with threading holes;

[0008] An electrical component is detachably disposed in the box, and a wire electrically connected to the electrical component can be passed through the wire threading hole;

[0009] The baffle comprises a shielding portion and a yielding portion, wherein the yielding portion is provided with two clamping claws, the baffle is detachably arranged on the box body, and the baffle has a first installation angle and a second installation angle relative to the box body; wherein,

[0010] At the first installation angle, the yielding portion is located in the wire threading hole, and the two clamping jaws can clamp the wire;

[0011] At the second installation angle, the shielding portion is located in the threading hole to shield the threading hole.

[0012] Optionally, the box includes:

[0013] A base, wherein a first half groove is provided on a side wall of the base, and a plug-in groove is provided on a groove wall of the first half groove;

[0014] A box cover is detachably arranged on the base, a receiving cavity for receiving the electrical device is formed between the box cover and the base, a second half groove is arranged on the side wall of the box cover, and a threading hole is formed by splicing the first half groove and the second half groove; wherein,

[0015] At the first installation angle, the shielding portion is inserted into the plug-in slot, and the slot wall of the second half slot can squeeze the clamping claw so that the clamping claw is deformed to clamp the wire;

[0016] At the second installation angle, the yielding portion is plugged into the plugging slot.

[0017] Optionally, an extrusion groove is provided on the groove wall of the second half groove; wherein,

[0018] At the first installation angle, the giving way portion is inserted into the extrusion groove, and the groove wall of the extrusion groove can squeeze the clamping claw so that the clamping claw is deformed to clamp the guide;

[0019] At the second installation angle, the shielding portion is inserted into the extrusion groove.

[0020] Optionally, the opening end of the extrusion groove protrudes from the groove wall of the second half groove and forms a first semi-ring protrusion, and the first semi-ring protrusion can extrude the wire.

[0021] Optionally, a plurality of pressure relief grooves are provided at intervals on the inner side of the clamping jaw.

[0022] Optionally, the yielding portion is provided with an arc concave surface between the two clamping jaws.

[0023] Optionally, the shielding portion extends to form a cutting portion, and a plurality of cutting grooves are arranged side by side on both sides of the cutting portion.

[0024] Optionally, the electrical device includes a wiring frame and at least one fastener, the fastener is threadedly connected to the wiring frame, the wiring frame is used to pass the wires, and the fastener is used to press the wires into the wiring frame.

[0025] Optionally, a reserved groove is provided in the box body, and the baffle is detachably inserted into the reserved groove.

[0026] Optionally, a convex rib is provided in the reserved groove, and the convex rib can abut against the baffle.

[0027] Beneficial effects:

[0028] The terminal box provided by the utility model, when in use, the electrical components are arranged in the box body, because the threading hole needs to be threaded with a wire, the baffle is installed on the box body at a first installation angle, at the threading hole, the yielding part of the baffle clamps the wire through two clamping claws to achieve the fixation of the wire, and the yielding part has a certain shielding effect on the threading hole, thereby making the box body have good moisture-proof, dust-proof and insect-proof effects, safe and reliable. When not in use, the baffle can be installed on the box body at a second installation angle, and the baffle shields the threading hole through the shielding part to achieve good sealing, and has good moisture-proof, dust-proof and insect-proof effects. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 This is a structural schematic diagram of a terminal box provided by the utility model from one perspective;

[0030] Figure 2 This is a schematic structural diagram of the terminal box provided by the utility model from another perspective;

[0031] Figure 3 It is a structural schematic diagram of the base provided by the utility model;

[0032] Figure 4 It is a structural schematic diagram of the box cover provided by the utility model;

[0033] Figure 5 It is a structural schematic diagram of the baffle provided by the utility model;

[0034] Figure 6 It is a partial structural schematic diagram of the terminal box provided by the utility model;

[0035] Figure 7 It is a partial cross-sectional view of the terminal box provided by the utility model;

[0036] Figure 8 This is another structural schematic diagram of the terminal box provided by the utility model from another viewing angle.

[0037] In the figure:

[0038] 100, box body; 101, accommodating cavity; 102, threading hole; 110, base; 111, first half groove; 112, plug-in groove; 1121, second half ring protrusion; 113, reserved groove; 1131, convex rib; 120, box cover; 121, second half groove; 122, extrusion groove; 1221, guiding inclined surface; 1222, first half ring protrusion; 123, operation hole;

[0039] 200, electrical components; 201, wires; 210, wiring frame; 220, fasteners; 230, operating unit;

[0040] 300, baffle; 310, shielding portion; 320, yielding portion; 321, clamping claw; 3211, pressure relief groove; 322, arc concave surface; 330, cutting portion; 331, cutting groove. DETAILED DESCRIPTION

[0041] The present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the present invention, rather than to limit the present invention. It should also be noted that, for ease of description, only the parts related to the present invention, rather than all structures, are shown in the accompanying drawings.

[0042] In the description of the present invention, unless otherwise clearly specified and limited, the terms "connected", "connected", and "fixed" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0043] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0044] In the description of this embodiment, the terms "upper", "lower", "right", etc., are based on the directions or positions shown in the drawings, and are only for the convenience of description and simplified operation, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation of the present invention. In addition, the terms "first" and "second" are only used to distinguish in the description and have no special meaning.

[0045] Reference Figures 1 to 8 As shown, this embodiment provides a terminal box, which includes a box body 100 , an electrical component 200 and a baffle 300 .

[0046] Specifically, the side wall of the box 100 is provided with a threading hole 102; the electrical device 200 is detachably arranged in the box 100, and the wire 201 electrically connected to the electrical device 200 can be passed through the threading hole 102; the baffle 300 includes a shielding portion 310 and a yielding portion 320, and the yielding portion 320 is provided with two clamping claws 321. The baffle 300 is detachably arranged on the box 100, and the baffle 300 has a first installation angle and a second installation angle relative to the box 100. Exemplarily, the electrical device 200 includes but is not limited to a circuit breaker and an isolating switch. Exemplarily, the shielding portion 310 is located at the first end of the baffle 300, and the yielding portion 320 is located at the second end of the baffle 300. Among them, the first end and the second end of the baffle 300 are opposite ends to each other.

[0047] At the first installation angle, the clearance portion 320 is located in the threading hole 102 , and the two clamping claws 321 can clamp the wire 201 ; at the second installation angle, the shielding portion 310 is located in the threading hole 102 to shield the threading hole 102 .

[0048] When the terminal box is in use, the electrical device 200 is arranged in the box body 100. Since the wire 201 needs to be passed through the wire hole 102, the baffle 300 is installed on the box body 100 at a first installation angle. At the wire hole 102, the yielding portion 320 of the baffle 300 clamps the wire 201 through two clamping claws 321 to fix the wire 201, and the yielding portion 320 has a certain shielding effect on the wire hole 102, thereby making the box body 100 have good moisture-proof, dust-proof and insect-proof effects, and is safe and reliable.

[0049] When the terminal box is not in use, that is, there is no wire 201 passing through the wire hole 102, the baffle 300 can be installed on the box body 100 at a second installation angle. The baffle 300 blocks the wire hole 102 through the shielding part 310 to achieve good sealing, with good moisture-proof, dust-proof and insect-proof effects.

[0050] In this embodiment, continue to refer to Figures 1 to 5 As shown, the box body 100 includes a base 110 and a box cover 120 detachably disposed on the base 110 , and a receiving cavity 101 for receiving the electrical device 200 is formed between the box cover 120 and the base 110 , which is convenient for disassembly and assembly.

[0051] Specifically, the clamping claw 321 can produce elastic deformation, a first half groove 111 is provided on the side wall of the base 110, a plug-in groove 112 is provided on the groove wall of the first half groove 111, and a second half groove 121 is provided on the side wall of the box cover 120, and the first half groove 111 and the second half groove 121 are spliced ​​to form a threading hole 102. Among them, at the first installation angle, the shielding portion 310 is plugged into the plug-in groove 112, and the groove wall of the second half groove 121 can squeeze the clamping claw 321, so that the clamping claw 321 is deformed to clamp the wire 201; at the second installation angle, the yielding portion 320 is plugged into the plug-in groove 112, so that the baffle 300 is conveniently installed on the box body 100. When the terminal box needs to be used and assembled, the shielding portion 310 is first inserted into the plug-in slot 112 and the electrical device 200 is placed in the base 110, and then the wire 201 connected to the electrical device 200 is placed between the two clamping jaws 321, and finally the box cover 120 is installed on the base 110, and the clamping jaw 321 is squeezed by the groove portion of the second half groove 121, and the clamping jaw 321 is bent toward the wire 201 and clamps the wire 201, which is convenient and reliable.

[0052] In a possible implementation, Figure 5 As shown, a plurality of pressure relief grooves 3211 are provided at intervals on the inner side of the clamping jaw 321, so that the clamping jaw 321 is suitable for bending toward the wire 201, and the inner side of the clamping jaw 321 is better fitted with the wire 201, so that the clamping jaw 321 fixes the wire 201 more stably and reliably, and the clamping jaw 321 has a better shielding effect on the threading hole 102.

[0053] Exemplarily, the cross-sectional shape of the pressure relief groove 3211 can be a trapezoid, and when the jaw 321 is in a natural state, the bottom width of the pressure relief groove 3211 is smaller than the opening width of the pressure relief groove 3211, so as to further make the inner side of the jaw 321 better fit the wire 201, and make the jaw 321 have a better shielding effect on the threading hole 102.

[0054] In a possible implementation, Figure 5 As shown, the yielding portion 320 is provided with an arc concave surface 322 between the two clamping jaws 321 , and the wire 201 fits against the arc concave surface 322 , so that the yielding portion 320 has a better shielding effect on the threading hole 102 .

[0055] In a possible implementation, Figure 4As shown, an extrusion groove 122 is provided on the groove wall of the second half groove 121; wherein, at a first installation angle, the giving portion 320 is inserted into the extrusion groove 122, and the groove wall of the extrusion groove 122 can squeeze the clamping jaw 321, so that the clamping jaw 321 is deformed to clamp the wire 201, and effectively prevents the clamping jaw 321 from deforming in other directions except bending toward the wire 201, so that the clamping jaw 321 fixes the wire 201 more stably and reliably, and the clamping jaw 321 has a better shielding effect on the threading hole 102; at a second installation angle, the shielding portion 310 is inserted into the extrusion groove 122, so that the shielding portion 310 has a better shielding effect on the threading hole 102.

[0056] Exemplarily, the extrusion groove 122 includes two oppositely disposed guiding inclined surfaces 1221 , the guiding inclined surfaces 1221 correspond to the clamping jaws 321 one by one, and the extrusion groove 122 squeezes the corresponding clamping jaws 321 through the guiding inclined surfaces 1221 to make the clamping jaws 321 bend toward the wire 201 .

[0057] In a possible implementation, Figure 1 , Figure 3 and Figure 4 As shown, the open end of the extrusion groove 122 protrudes from the groove wall of the second half groove 121 and is formed with a first half ring protrusion 1222, and the first half ring protrusion 1222 can extrude the wire 201 so that the threading hole 102 has a better shielding effect. In addition, the first half ring protrusion 1222 cooperates with the shielding portion 310 to also provide a better shielding effect at the threading hole 102. Exemplarily, the first half ring protrusion 1222 is provided on the opposite sides of the open end of the extrusion groove 122. Further, the open end of the plug-in groove 112 can protrude from the groove wall of the first half groove 111 and be formed with a second half ring protrusion 1121, so that the threading hole 102 has a better shielding effect. Among them, the second half ring protrusion 1121 and the first half ring protrusion 1222 can be spliced ​​into a whole ring.

[0058] In a possible implementation, Figure 5 As shown, the shielding portion 310 extends to form a cutting portion 330, and a plurality of cutting grooves 331 are arranged side by side on both sides of the cutting portion 330. For a wire 201 with a larger wire diameter, a portion of the cutting portion 330 can be cut off along the cutting groove 331 to reduce the bending amount of the clamping jaw 321 toward the wire 201, so as to ensure that the clamping force of the clamping jaw 321 on the wire 201 is moderate, and to ensure that the threading hole 102 has a better shielding effect, thereby adapting to clamping wires 201 of various wire diameters. Among them, the design of the cutting groove 331 facilitates quantitative cutting of the cutting portion 330. Specifically, the shielding portion 310 extends from one end of the back of the giving way portion 320 to form a cutting portion 330.

[0059] Exemplarily, when the baffle 300 is installed on the box body 100 at the second installation angle, in order to ensure that the cutting portion 330 does not interfere with the groove wall of the extrusion groove 122, a clearance groove that can accommodate the plug-in portion is provided on the groove wall of the extrusion groove 122.

[0060] In a feasible implementation, a plurality of threading holes 102, for example, two to four, are respectively provided at both ends of the box body 100, so that the wires 201 can be passed through the threading holes 102 one by one, that is, the clamping jaws 321 clamp the wires 201 one by one, thereby making the clamping and fixing of the wires 201 by the clamping jaws 321 more stable and reliable, and making the yielding portion 320 have a better shielding effect on the threading holes 102. The two ends of the box body 100 may be opposite ends of the box body 100 along the length direction.

[0061] In a feasible implementation, a reserved slot 113 is provided in the box body 100, and the baffle 300 can be detachably inserted into the reserved slot 113. In this embodiment, the design of the reserved slot 113 can store the baffle 300 for backup and can reduce the generation of garbage. Figure 6 As shown, the reserved slot 113 is disposed in the base 110 .

[0062] Exemplarily, the yielding portion 320 of the baffle 300 is inserted into the reserved groove 113 to protect the clamping claw 321 and prevent the clamping claw 321 from being damaged due to collision.

[0063] Exemplarily, a plurality of reserved slots 113 are provided, for example, two to eight.

[0064] Specifically, a convex rib 1131 is provided in the reserved groove 113 , and the convex rib 1131 can abut against the baffle 300 to form an interference fit between the baffle 300 and the reserved groove 113 , thereby allowing the baffle 300 to be stably inserted into the reserved groove 113 .

[0065] In this embodiment, refer to Figure 7 As shown, the electrical device 200 includes a wiring frame 210 and at least one fastener 220, the fastener 220 is threadedly connected to the wiring frame 210, the wiring frame 210 is used to pass the wire 201, the fastener 220 is used to press the wire 201 into the wiring frame 210, and cooperate with the clamping claw 321 to clamp the wire 201, so as to double reinforce the wire 201, so that the fixation of the wire 201 is more stable and reliable, and the external stress is prevented from causing poor contact of the wire 201 and loosening of the wire 201, thereby greatly improving the product reliability.

[0066] Exemplarily, two fasteners 220 are provided to ensure stable and reliable fixation of the wire 201 and facilitate wiring.

[0067] In this embodiment, refer to Figure 8As shown, the box cover 120 is provided with an operating hole 123 communicating with the accommodating cavity 101, and the operating portion 230 of the electrical device 200 is arranged through the operating hole 123. For example, taking the electrical device 200 as an isolating switch, the operating handle of the isolating switch is placed outside the box body 100 through the operating hole 123 to facilitate the on-off operation of the isolating switch.

[0068] Obviously, the above embodiments of the present invention are merely examples for the purpose of clearly illustrating the present invention, and are not intended to limit the implementation methods of the present invention. For those skilled in the art, various obvious changes, readjustments and substitutions can be made without departing from the scope of protection of the present invention. It is not necessary and impossible to list all implementation methods here. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention shall be included in the scope of protection of the claims of the present invention.

Claims

1. A terminal box, characterized in that: include: A box body (100), wherein a side wall of the box body (100) is provided with a threading hole (102); An electrical component (200) is detachably disposed in the box (100), and a wire (201) electrically connected to the electrical component (200) can be passed through the wire threading hole (102); The baffle (300) comprises a shielding portion (310) and a yielding portion (320), wherein the yielding portion (320) is provided with two clamping claws (321), and the baffle (300) is detachably arranged on the box body (100), and the baffle (300) has a first installation angle and a second installation angle relative to the box body (100); wherein: At the first installation angle, the yielding portion (320) is located in the wire threading hole (102), and the two clamping jaws (321) can clamp the wire (201); At the second installation angle, the shielding portion (310) is located inside the threading hole (102) to shield the threading hole (102).

2. The terminal box according to claim 1, characterized in that: The box (100) comprises: A base (110), wherein a first half groove (111) is provided on a side wall of the base (110), and a plug-in groove (112) is provided on a groove wall of the first half groove (111); A box cover (120) is detachably mounted on the base (110); a receiving cavity (101) for receiving the electrical device (200) is formed between the box cover (120) and the base (110); a second half groove (121) is provided on the side wall of the box cover (120); a threading hole (102) is formed by splicing the first half groove (111) and the second half groove (121); wherein: At the first installation angle, the shielding portion (310) is inserted into the insertion slot (112), and the slot wall of the second half slot (121) can squeeze the clamping claw (321) so that the clamping claw (321) is deformed to clamp the wire (201); At the second installation angle, the yielding portion (320) is inserted into the inserting slot (112).

3. The terminal box according to claim 2, characterized in that: An extrusion groove (122) is provided on the groove wall of the second half groove (121); wherein, At the first installation angle, the giving way portion (320) is inserted into the extrusion groove (122), and the groove wall of the extrusion groove (122) can squeeze the clamping claw (321), so that the clamping claw (321) is deformed to clamp the guide; At the second installation angle, the shielding portion (310) is inserted into the extrusion groove (122).

4. The terminal box according to claim 3, characterized in that: The open end of the extrusion groove (122) protrudes from the groove wall of the second half groove (121) and is formed with a first half-ring protrusion (1222), and the first half-ring protrusion (1222) can extrude the wire (201).

5. The terminal box according to claim 1, characterized in that: A plurality of pressure relief grooves (3211) are provided at intervals on the inner side of the clamping jaw (321).

6. The terminal box according to claim 1, characterized in that: The yielding portion (320) is provided with a circular arc concave surface (322) between the two clamping jaws (321).

7. The terminal box according to claim 1, characterized in that: The shielding portion (310) is extended to form a cutting portion (330), and a plurality of cutting grooves (331) are arranged side by side on both sides of the cutting portion (330).

8. The terminal box according to claim 1, characterized in that: The electrical device (200) comprises a wiring frame (210) and at least one fastener (220), wherein the fastener (220) is threadedly connected to the wiring frame (210), the wiring frame (210) is used to pass the wire (201), and the fastener (220) is used to press the wire (201) into the wiring frame (210).

9. The terminal box according to any one of claims 1 to 8, characterized in that: A reserved groove (113) is provided in the box body (100), and the baffle (300) is detachably plugged into the reserved groove (113).

10. The terminal box according to claim 9, characterized in that: A convex rib (1131) is provided in the reserved groove (113), and the convex rib (1131) can abut against the baffle (300).

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