Drawer unit of low-voltage switch cabinet and low-voltage switch cabinet

Abstract

The utility model discloses a low-voltage switch cabinet drawer unit and a low-voltage switch cabinet, and relates to the technical field of low-voltage switch cabinets, the low-voltage switch cabinet drawer unit comprises a cabinet bin, a switch drawer and a wiring anti-loosening assembly, the switch drawer is slidably installed in the cabinet bin, the wiring anti-loosening assembly is installed on the inner wall of the rear side of the cabinet bin, and the wiring anti-loosening assembly is installed on the inner wall of the rear side of the cabinet bin. The wiring anti-loosening assembly comprises a static contact, a moving contact, a connecting wire, a positioning sleeve, an assembling plate and a positioning clamping groove, the static contact is fixedly connected with the rear wall of the cabinet bin, the moving contact is installed on the front side of the static contact, the front side of the moving contact is connected with the connecting wire, and the moving contact is sleeved with the positioning sleeve. According to the low-voltage switch cabinet drawer unit and the low-voltage switch cabinet, the positioning sleeve can be sleeved outside the moving contact to limit the moving contact, and the two sides of the positioning sleeve can be clamped and connected with the positioning clamping grooves, so that the moving contact and the static contact are prevented from being loosened due to the fact that the moving contact is pulled to move under the condition that the connecting wire is pulled.

Description

TECHNICAL FIELD

[0001] The utility model relates to low voltage switchgear technical field, concretely is a low voltage switchgear drawer unit and low voltage switchgear. BACKGROUND

[0002] Low voltage switchgear is also called low voltage cabinet, mainly used in low voltage distribution part of power system, many installations are in distribution room, as transmission, distribution and electric energy conversion, among them, drawer type switch cabinet has higher reliability, safety and interchangeability, is more advanced switch cabinet, drawer type switch cabinet is mainly suitable for high reliability of industrial and mining enterprises.

[0003] For example, the utility model discloses a kind of low-voltage drawer type switch cabinet with application No.

[0004] Therefore, in view of the above, the existing structure and deficiency are improved, and a low-voltage switchgear drawer unit and low-voltage switchgear are proposed. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing a low-voltage switchgear drawer unit and low-voltage switchgear to solve the problems raised in the background art.

[0006] To achieve the above object, the utility model provides the following technical scheme: a low-voltage switchgear drawer unit, comprising a cabinet, a switch drawer, and a wiring anti-loose assembly, the switch drawer is slidably installed inside the cabinet, the wiring anti-loose assembly is installed on the rear inner wall of the cabinet, and the wiring anti-loose assembly comprises a static contact, a dynamic contact, a connecting wire, a positioning sleeve, a connecting plate, and a positioning slot, the static contact is fixedly connected to the rear wall of the cabinet, the dynamic contact is installed on the front side of the static contact, and the connecting wire is connected to the front side of the dynamic contact, the dynamic contact is sleeved with the positioning sleeve outside, the upper side of the positioning sleeve is an open structure, the connecting plate is fixedly connected to the outside of one side of the positioning sleeve, the rear wall of the cabinet is provided with a positioning slot corresponding to the positioning sleeve, and the left and right sides of the inside of the switch drawer are both installed with a winding assembly.

[0007] Further, the switch drawer is fixedly connected with a handle outside, and a ventilation slot is formed on the upper side of the left and right sides of the switch drawer, and a heat dissipation assembly is installed below the switch drawer.

[0008] Further, the heat dissipation assembly comprises a heat dissipation base frame, an air inlet mesh and a heat dissipation fan, the heat dissipation base frame is fixedly connected with the switch drawer, the inside of the heat dissipation base frame is a hollow structure, the front side of the heat dissipation base frame is provided with the air inlet mesh, and the middle upper side of the heat dissipation base frame is provided with the heat dissipation fan which is embedded in the bottom surface of the switch drawer.

[0009] Further, the switch drawer is fixed with sliding strips on both sides, and the left and right inner walls of the cabinet bin are provided with sliding rails corresponding to the sliding strips.

[0010] Further, the winding assembly comprises a winding drum, a gear and a rack, the winding drum is rotationally connected with the bottom wall of the switch drawer, the upper side of the winding drum is fixedly provided with the gear, one side of the gear is engaged with the rack, and the rear end of the rack is fixedly connected with the rear wall of the cabinet bin.

[0011] Further, the rear side of the switch drawer is provided with wire outlet grooves for connecting wires, and the upper side of the rear side of the switch drawer is provided with a slotted groove for the rack.

[0012] A low-voltage switch cabinet is provided with the low-voltage switch cabinet drawer unit.

[0013] The low-voltage switch cabinet drawer unit and the low-voltage switch cabinet have the following beneficial effects:

[0014] The wiring anti-loosening assembly is provided, the movable contact is connected with the fixed contact, the upper side of the positioning sleeve is an open structure and can be sleeved on the outside of the movable contact to limit the movable contact, the two sides of the positioning sleeve are clamped and connected with the positioning clamping groove, the positioning sleeve can be locked and positioned by penetrating the bolt through the connecting plate and the cabinet bin, and the movable contact and the fixed contact are prevented from loosening due to the pulling and moving of the movable contact under the condition that the connecting wire is pulled.

[0015] The winding assembly is provided, the middle part of the overlong connecting wire can be wound on the outside of the winding drum, the gear and the rack are engaged with each other during the process of pulling out the switch drawer, the gear rotates under the action of the rack, and the connecting wire wound on the outside of the winding drum can be unwound and wound when the switch drawer is opened and closed, so that the overlong connecting wire is prevented from being wound or broken due to pulling. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is a three-dimensional structure schematic view of the low-voltage switch cabinet drawer unit and the low-voltage switch cabinet.

[0017] Figure 2 It is a wiring anti-loosening assembly structure schematic view of the low-voltage switch cabinet drawer unit and the low-voltage switch cabinet.

[0018] Figure 3 It is a winding assembly structure schematic view of the drawer unit and the low-voltage switch cabinet.

[0019] In the figure: 1, cabinet warehouse; 2, switch drawer; 3, handle; 4, ventilation slot; 5, heat dissipation assembly; 501, heat dissipation bottom frame; 502, air inlet mesh; 503, heat dissipation fan; 6, sliding bar; 7, sliding rail; 8, wiring anti-loosening assembly; 801, static contact; 802, moving contact; 803, connecting wire; 804, positioning sleeve; 805, group connecting plate; 806, positioning clamping groove; 9, outlet slot; 10, winding assembly; 1001, winding drum; 1002, gear; 1003, rack. DETAILED DESCRIPTION

[0020] The embodiments of the utility model will be further described in detail below in combination with the drawings and examples. The following examples are used to illustrate the utility model, but cannot be used to limit the scope of the utility model.

[0021] As Figure 1 shown, a low-voltage switch cabinet drawer unit, including cabinet warehouse 1, switch drawer 2 and wiring anti-loosening assembly 8, the inside of cabinet warehouse 1 is slidably installed with switch drawer 2, the outside of switch drawer 2 is fixed with handle 3, and the upper sides of the left and right sides of switch drawer 2 are both provided with ventilation slot 4, and the lower side of switch drawer 2 is installed with heat dissipation assembly 5, heat dissipation assembly 5 includes heat dissipation bottom frame 501, air inlet mesh 502 and heat dissipation fan 503, heat dissipation bottom frame 501 is fixedly connected with switch drawer 2, and the inside of heat dissipation bottom frame 501 is hollow structure, the front side of heat dissipation bottom frame 501 is provided with air inlet mesh 502, and the upper side of the middle part of heat dissipation bottom frame 501 is installed with heat dissipation fan 503, and heat dissipation fan 503 is embedded in the bottom surface of switch drawer 2, the left and right sides of switch drawer 2 are both fixed with sliding bar 6, and the inner walls of the left and right sides of cabinet warehouse 1 are provided with sliding rail 7 corresponding to sliding bar 6; by the mutual cooperation between sliding bar 6 and sliding rail 7, it is convenient to slide and pull handle 3 and switch drawer 2, air inlet mesh 502 of heat dissipation bottom frame 501 is used for air inlet and filtration, heat dissipation fan 503 is convenient for air cooling heat dissipation of switch devices in the upper side of switch drawer 2, and ventilation slot 4 on the left and right sides of switch drawer 2 is convenient for air exhaust, the inside of ventilation slot 4 is composed of inner and outer two layers of filter screens and the middle active carbon filter layer, which can ventilate while preventing moisture and dust.

[0022] As Figure 1 and Figure 1As shown, a wiring anti-loosening assembly 8 is installed on the rear inner wall of the rack compartment 1. The wiring anti-loosening assembly 8 includes a stationary contact 801, a moving contact 802, a connecting wire 803, a positioning sleeve 804, a connecting plate 805, and a positioning slot 806. The stationary contact 801 is fixedly connected to the rear wall of the rack compartment 1, and the moving contact 802 is installed on the front side of the stationary contact 801. The connecting wire 803 is connected to the front side of the moving contact 802. The positioning sleeve 804 is sleeved on the outside of the moving contact 802. The upper side of the positioning sleeve 804 has an open structure, and the connecting plate 805 is fixed on one side of the outer side of the positioning sleeve 804. The rear wall of the rack compartment 1 is... The positioning sleeve 804 is provided with a positioning slot 806. The inside of the switch drawer 2 is equipped with a winding assembly 10 on both the left and right sides. The moving contact 802 is connected to the stationary contact 801. The upper side of the positioning sleeve 804 is an open structure that can be fitted onto the outside of the moving contact 802 to limit the movement of the moving contact 802. It can also make the two sides of the positioning sleeve 804 engage with the positioning slot 806. The positioning sleeve 804 can be locked and positioned by bolts passing through the assembly plate 805 and the cabinet compartment 1, thereby preventing the moving contact 802 from being pulled and moved when the connecting wire 803 is pulled, which would cause the moving contact 802 to become loose from the stationary contact 801.

[0023] like Figure 1 and Figure 3 As shown, the winding assembly 10 includes a winding drum 1001, a gear 1002, and a rack 1003. The winding drum 1001 is rotatably connected to the bottom wall of the switch drawer 2, and the gear 1002 is fixed to the upper side of the winding drum 1001. The rack 1003 meshes with one side of the gear 1002, and the rear end of the rack 1003 is fixedly connected to the rear wall of the cabinet compartment 1. Cable outlet slots 9 for the connecting wire 803 are provided on both rear sides of the switch drawer 2, and corresponding outlet slots are provided on the upper rear side of the switch drawer 2. The slot is used for the rack 1003 to pass through; the middle part of the excessively long connecting wire 803 can be wound around the outside of the winding drum 1001. During the process of pulling out the switch drawer 2, the gear 1002 and the rack 1003 mesh with each other, so that the gear 1002 rotates under the action of the rack 1003. Thus, when opening and closing the switch drawer 2, the connecting wire 803 wound around the outside of the winding drum 1001 can be unwound and wound up respectively, preventing the connecting wire 803 from becoming too long and tangled or being pulled and broken.

[0024] A low-voltage switchgear is provided, wherein the low-voltage switchgear is equipped with a low-voltage switchgear drawer unit; the switch drawer 2 of the low-voltage switchgear drawer unit can be slidably installed into the corresponding cabinet compartment 1 inside the low-voltage switchgear, thereby facilitating its pull-out use.

[0025] In summary, as Figures 1-3As shown, in use, the low-voltage switchgear drawer unit and the low-voltage switchgear allow the moving contact 802 to connect with the stationary contact 801. Then, a positioning sleeve 804 with an open upper side is fitted over the moving contact 802 to limit its movement. Both sides of the positioning sleeve 804 engage with the positioning slots 806. Bolts passing through the assembly plate 805 and the cabinet compartment 1 lock the positioning sleeve 804 in place, preventing the moving contact 802 from being pulled and causing it to detach from the stationary contact 801. Excessive length of the connecting wire 803 is then routed through the cable outlet 9 and wound around the outside of the winding drum 1001. During the drawer-out process, the sliding strip 6 and the slide rail 7 facilitate sliding and pulling. When the handle 3 is closed, the switch drawer 2 is engaged. The gear 1002 and the rack 1003 mesh with each other, causing the gear 1002 to rotate under the action of the rack 1003. This allows the connecting wire 803 wound around the outside of the winding spool 1001 to be unwound and wound up when the switch drawer 2 is opened and closed, respectively, preventing the connecting wire 803 from becoming too long and getting tangled or broken due to pulling. During use, the air inlet 502 of the heat dissipation frame 501 is used for air intake and filtration, and the cooling fan 503 can provide air cooling for the switching devices in the upper switch drawer 2. The ventilation slots 4 on both sides of the switch drawer 2 can exhaust air. The ventilation slots 4 are composed of inner and outer filter screens and an activated carbon filter layer in the middle, which can prevent moisture and dust while providing ventilation. This completes the use of the low-voltage switch cabinet drawer unit and the low-voltage switch cabinet.

[0026] The embodiments of this utility model are given for illustrative and descriptive purposes only, and are not intended to be exhaustive or to limit the utility model to the forms disclosed. Many modifications and variations will be apparent to those skilled in the art. The embodiments were chosen and described in order to better illustrate the principles and practical applications of this utility model, and to enable those skilled in the art to understand this utility model and design various embodiments with various modifications suitable for a particular purpose.

Claims

1. A low-voltage switchgear drawer unit, comprising a cabinet compartment (1), a switch drawer (2), and a wiring anti-loosening assembly (8), characterized in that, The cabinet compartment (1) is equipped with a sliding switch drawer (2). A wiring anti-loosening assembly (8) is installed on the rear inner wall of the cabinet compartment (1). The wiring anti-loosening assembly (8) includes a stationary contact (801), a moving contact (802), a connecting wire (803), a positioning sleeve (804), a connecting plate (805), and a positioning slot (806). The stationary contact (801) is fixedly connected to the rear wall of the cabinet compartment (1), and a moving contact (802) is installed on the front side of the stationary contact (801). 2), and the front side of the moving contact (802) is connected to a connecting line (803). The moving contact (802) is fitted with a positioning sleeve (804), and the upper side of the positioning sleeve (804) is an open structure. A connecting plate (805) is fixed on the outer side of the positioning sleeve (804). The rear wall of the cabinet compartment (1) is provided with a positioning slot (806) corresponding to the positioning sleeve (804). The left and right sides of the inside of the switch drawer (2) are equipped with winding assemblies (10).

2. The low-voltage switchgear drawer unit according to claim 1, characterized in that, The switch drawer (2) is fixed with a handle (3) on the outside, and ventilation slots (4) are provided on the upper left and right sides of the switch drawer (2), and a heat dissipation component (5) is installed on the lower part of the switch drawer (2).

3. A low-voltage switchgear drawer unit according to claim 2, characterized in that, The heat dissipation component (5) includes a heat dissipation base frame (501), an air inlet (502), and a heat dissipation fan (503). The heat dissipation base frame (501) is fixedly connected to the switch drawer (2), and the interior of the heat dissipation base frame (501) is a hollow structure. An air inlet (502) is provided on the front side of the heat dissipation base frame (501), and a heat dissipation fan (503) is installed on the upper middle part of the heat dissipation base frame (501), and the heat dissipation fan (503) is embedded in the bottom surface of the switch drawer (2).

4. A low-voltage switchgear drawer unit according to claim 1, characterized in that, The switch drawer (2) has sliding strips (6) fixed on both sides, and the cabinet compartment (1) has slide rails (7) on the inner walls of the left and right sides corresponding to the sliding strips (6).

5. A low-voltage switchgear drawer unit according to claim 1, characterized in that, The winding assembly (10) includes a winding drum (1001), a gear (1002) and a rack (1003). The winding drum (1001) is rotatably connected to the bottom wall of the switch drawer (2), and the gear (1002) is fixed on the upper side of the winding drum (1001). The rack (1003) is meshed on one side of the gear (1002), and the rear end of the rack (1003) is fixedly connected to the rear wall of the cabinet compartment (1).

6. A low-voltage switchgear drawer unit according to claim 5, characterized in that, The switch drawer (2) has a cable outlet groove (9) on both sides of the rear side for the connecting wire (803) to pass through, and a corresponding slot for the rack (1003) to pass through is provided on the upper rear side of the switch drawer (2).

7. A low-voltage switchgear, characterized in that, The low-voltage switchgear is equipped with a low-voltage switchgear drawer unit as described in any one of claims 1-6.

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