Switch cabinet
By designing the electric release components and contact parts in the switch cabinet, the problem of poor safety in the use of PT handcart in the switch cabinet is solved, and the residual charge shock is prevented during the launch of the handcart, which improves safety.
Patent Information
- Application Number
- CN202420269838.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-02-02
- Publication Date
- 2025-02-21
- Estimated Expiration
- 2034-02-02
AI Technical Summary
In switch cabinets, PT car is less safe to use because the residual charge of electrical equipment will be discharged through the human body, causing electric shock.
A switch cabinet is designed, including a cabinet body, a voltage transformer and a hand car. The voltage transformer is installed on the hand car, and the hand car is movably installed in the first installation space. The electric release assembly is installed in the first installation space and has a contact portion protruding towards the voltage transformer. When the handcart moves outward, the contact portion comes into contact with the voltage transformer and releases residual charge.
By releasing residual charge on the voltage transformer, the residual charge prevents electric shock to the human body during the push of the car, thereby improving the safety of the car's use.
Smart Images
Figure CN222515130U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of switch cabinets, in particular to a switch cabinet. Background Art
[0002] Voltage transformers are an important component of the power system. Voltage transformers are mainly used to supply power to measuring instruments and relay protection devices, to measure the voltage, power and electric energy of the line, or to protect motors, transformers, etc. in the line when a line fault occurs.
[0003] Voltage transformers are generally installed in switch cabinets. In order to facilitate the inspection and maintenance of voltage transformers, PT trolleys are generally installed in switch cabinets, and voltage transformers are installed on PT trolleys. Due to the capacitance effect of electrical equipment, a certain amount of charge is retained after the electrical equipment is just disconnected from the power supply. This charge is called residual charge. At this time, when the human body touches the electrical equipment, the residual charge will be discharged through the human body, causing electric shock; the larger the capacity of the electrical equipment and the longer the cable line, the higher the accumulated voltage of this residual charge, the greater the harm to people, and in severe cases, it can cause death. Therefore, when the PT trolley is pushed out of the switch cabinet, it is easy to be shocked by the residual charge, making the use of the PT trolley less safe. Utility Model Content
[0004] The main purpose of the utility model is to provide a switch cabinet to solve the problem of poor safety in use of handcarts in the prior art.
[0005] In order to achieve the above-mentioned purpose, the utility model provides a switch cabinet, including: a cabinet body, having a first installation space; a voltage transformer and a trolley, the voltage transformer is installed on the trolley, and the trolley can be movably installed in the first installation space; a charge release assembly, installed in the first installation space and grounded, the charge release assembly having a contact portion protruding toward the voltage transformer, so that when the trolley moves toward the outside of the first installation space, the contact portion contacts the voltage transformer to release the residual charge on the voltage transformer.
[0006] Furthermore, a mounting seat is provided in the first mounting space, and the trolley is slidably connected to the mounting seat; the power release assembly includes a mounting portion, the mounting portion is connected to the mounting seat, the mounting portion extends in a direction away from the mounting seat, and the contact portion is mounted on the mounting portion.
[0007] Furthermore, the contact portion is fixedly connected to the mounting portion, and the contact portion includes an elastic component, and the elastic component contacts the voltage transformer and undergoes elastic deformation.
[0008] Further, the contact portion is movably connected to the mounting portion, so that when the voltage transformer is in contact with the contact portion, the contact portion can move relative to the mounting portion.
[0009] Furthermore, the contact portion includes a release rod, and the release rod is movably arranged on the mounting portion.
[0010] Furthermore, the mounting portion includes a fixed sleeve, and the release rod is telescopically inserted into the fixed sleeve; the release assembly also includes: a first elastic member, the first elastic member is located in the barrel cavity of the fixed sleeve, one end of the first elastic member is connected to the fixed sleeve, and the other end of the first elastic member is connected to the release rod.
[0011] Furthermore, the mounting portion includes: a first mounting beam, one end of which is connected to a mounting seat; a second mounting beam, which is connected to the first mounting beam, the first mounting beam and the second mounting beam are arranged at a preset angle, the second mounting beam is located above the voltage transformer and is spaced apart from the voltage transformer, and the contact portion is arranged on the second mounting beam.
[0012] Further, the preset angle is 90°, and the second mounting beam is arranged parallel to the mounting seat; and / or, there are two first mounting beams, the two first mounting beams are arranged at intervals, and both ends of the second mounting beam are respectively connected to the two first mounting beams.
[0013] Furthermore, there are a plurality of voltage transformers, which are arranged at intervals on the trolley, and there are a plurality of contact parts, which are arranged in a one-to-one correspondence with the plurality of voltage transformers.
[0014] Furthermore, the voltage transformer includes a transformer body and contacts that are connected to each other; the switch cabinet includes: a branch connection bar, the contacts of the voltage transformer can be selectively connected or separated from the branch connection bar, when the trolley moves outward to the position where the contacts of each voltage transformer are separated from the branch connection bar, the contacts of the voltage transformer contact the contact part; an insulator, the insulator is installed in the first installation space, the insulator is connected to the branch connection bar; and an earthing switch, the branch connection bar is connected to the earthing switch.
[0015] Applying the technical solution of the utility model, the utility model provides a switch cabinet, including: a cabinet body, having a first installation space; a voltage transformer and a trolley, the voltage transformer is installed on the trolley, and the trolley can be movably installed in the first installation space; a release assembly, installed in the first installation space and grounded, the release assembly having a contact portion protruding toward the voltage transformer, so that when the trolley moves to the outside of the first installation space, the contact portion contacts the voltage transformer to release the residual charge on the voltage transformer, so that the residual charge can be prevented from causing electric shock to the human body during the process of pushing the trolley, thereby improving the safety of the use of the trolley. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] The drawings constituting part of the present application are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the drawings:
[0017] Figure 1 A schematic structural diagram showing a voltage transformer installed on a mounting base according to an embodiment of a switch cabinet of the utility model;
[0018] Figure 2 A front view showing a voltage transformer of a switch cabinet according to an embodiment of the utility model installed on a mounting base;
[0019] Figure 3 A side view showing a voltage transformer of a switch cabinet according to an embodiment of the utility model installed on a mounting base is shown;
[0020] Figure 4 The overall structural diagram of the switch cabinet according to the embodiment of the utility model is shown.
[0021] The above drawings include the following reference numerals:
[0022] 1. Voltage transformer; 101. Contact; 2. Cabinet body; 200. First installation space; 10. Mounting seat; 20. Cart; 21. Roller; 30. Release assembly; 31. Contact part; 32. Mounting part; 321. First mounting beam; 322. Second mounting beam; 3. Branch connection row; 4. Insulator; 5. Earthing switch; 6. Circuit breaker room; 7. Cable room; 8. Instrument room. DETAILED DESCRIPTION
[0023] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present utility model will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.
[0024] Please refer to Figures 1 to 4 The utility model provides a switch cabinet, comprising: a cabinet body 2, having a first installation space 200; a voltage transformer 1 and a trolley 20, the voltage transformer 1 being installed on the trolley 20, and the trolley 20 being movably installed in the first installation space 200; a power release component 30, installed in the first installation space 200 and grounded, the power release component 30 having a contact portion 31 protruding toward the voltage transformer 1, so that when the trolley 20 moves toward the outside of the first installation space 200, the contact portion 31 contacts the voltage transformer 1 to release the residual charge on the voltage transformer 1, so that the residual charge can be prevented from causing electric shock to the human body during the process of pushing out the trolley, thereby improving the safety of the use of the trolley.
[0025] In order to realize the installation of the trolley and the contact part 31 in the first installation space 200, in the present application, a mounting seat 10 is provided in the first installation space 200, and the trolley 20 is slidably connected to the mounting seat 10; the release assembly 30 includes a mounting part 32, the mounting part 32 is connected to the mounting seat 10, the mounting part 32 extends in a direction away from the mounting seat 10, and the contact part 31 is installed on the mounting part 32.
[0026] Optionally, the trolley 20 is a PT trolley or a VT trolley.
[0027] In the first embodiment of the contact portion 31 of the present application, the contact portion 31 is fixedly connected to the mounting portion 32, and the contact portion 31 includes an elastic component, which undergoes elastic deformation when in contact with the voltage transformer. In this way, in the process of the trolley moving toward the outside of the first installation space 200, the voltage transformer contacts the elastic component, and at this time, the release sheet undergoes elastic deformation to make the elastic component in close contact with the voltage transformer. At the same time, after the trolley drives the voltage transformer to move smoothly out to the outside of the first installation space 200, the elastic component returns to its original state according to its own elastic force.
[0028] Optionally, the elastic component is an elastic discharge sheet; or, the elastic component is an elastic rod-shaped structure.
[0029] In the embodiment of the present application, the elastic component is a discharge sheet, and the discharge sheet is double-layered, so that the structural strength of the discharge sheet can be ensured.
[0030] Specifically, one side of the discharge sheet is connected to the mounting portion 32 , and the other side of the discharge sheet is bent and connected to the mounting portion 32 , so that the discharge sheet forms a double-layer structure.
[0031] Optionally, the contact portion 31 is movably connected to the mounting portion 32, so that when the voltage transformer 1 contacts the contact portion 31, the contact portion 31 can move relative to the mounting portion 32. Through the above arrangement, when the trolley moves to the outside of the first installation space 200, the voltage transformer contacts the contact portion 31 and drives the contact portion 31 and the mounting portion 32 to move, so that the trolley drives the voltage transformer to move smoothly to the outside of the first installation space 200.
[0032] In the second embodiment of the contact portion 31 of the present application, in order to achieve a movably connected contact portion 31 and mounting portion 32 , the contact portion 31 includes a release rod, which is movably disposed on the mounting portion 32 .
[0033] In the second embodiment of the contact portion 31 of the present application, the mounting portion 32 includes a fixed sleeve, and the release rod is telescopically arranged in the fixed sleeve; the release assembly 30 also includes: a first elastic member, the first elastic member is located in the barrel cavity of the fixed sleeve, one end of the first elastic member is connected to the fixed sleeve, and the other end of the first elastic member is connected to the release rod. Through the above arrangement, when the trolley moves to the outside of the first installation space 200, after the voltage transformer contacts the end of the release rod away from the mounting portion 32, the release rod is driven to shrink toward the fixed sleeve, and the first elastic member generates an elastic force to make the release rod and the voltage transformer closely contact, and at the same time, the trolley drives the voltage transformer to move smoothly out of the first installation space 200, thus ensuring the reliability of the connection between the release rod and the voltage transformer. Among them, the first elastic member is a spring.
[0034] In the third embodiment of the contact portion 31 of the present application, the contact portion 31 includes a release plate, which is rotatably connected to the mounting portion 32, and the release assembly includes a second elastic member, one end of the second elastic member is connected to the end of the release plate away from the mounting portion 32, and the other end of the second elastic member is connected to the mounting portion 32. Through the above arrangement, when the trolley moves toward the outside of the first installation space 200, after the voltage transformer contacts the end of the release plate away from the mounting portion 32, the release rod is driven to rotate in the direction away from the voltage transformer, and the second elastic member is compressed. According to the elastic force generated by the second elastic member, the release plate is in close contact with the voltage transformer, and the trolley drives the voltage transformer to move smoothly out of the first installation space 200, thereby ensuring the reliability of the connection between the release plate and the voltage transformer. Among them, the second elastic member is a spring.
[0035] like Figure 1 As shown, in order to realize the installation of the contact portion 31, the installation portion 32 includes: a first installation beam 321, one end of the first installation beam 321 is connected to the mounting seat 10; a second installation beam 322, the second installation beam 322 is connected to the first installation beam 321, and the first installation beam 321 and the second installation beam 322 are arranged at a preset angle, the second installation beam 322 is located above the voltage transformer 1 and is spaced apart from the voltage transformer 1, and the contact portion 31 is arranged on the second installation beam 322.
[0036] The first mounting beam 321 is a plate-shaped structure.
[0037] In the present application, the preset angle is 90°, and the second mounting beam 322 is arranged parallel to the mounting seat 10, so that the mounting structure of the contact part 31 is reasonably arranged, so that the cooperation between the contact part 31 and the voltage transformer is reliable; and / or, there are two first mounting beams 321, and the two first mounting beams 321 are arranged at intervals, and the two ends of the second mounting beam 322 are respectively connected to the two first mounting beams 321, so that the mounting structure of the contact part 31 is stable and reliable.
[0038] In the present application, there are multiple voltage transformers 1, and the multiple voltage transformers 1 are arranged at intervals on the trolley 20, so that the multiple voltage transformers 1 can be driven to move simultaneously by the trolley 20. There are multiple contact parts 31, and the multiple contact parts 31 are arranged one-to-one corresponding to the multiple voltage transformers 1. In this way, the simultaneous release operation of the multiple voltage transformers 1 is achieved, further ensuring the reliability and safety of the trolley movement.
[0039] In the present application, the voltage transformer 1 includes a transformer body and a contact 101 that are interconnected; the switch cabinet includes: a branch connection row 3, the contact 101 of the voltage transformer 1 can be selectively connected or separated from the branch connection row 3, when the trolley 20 moves outward to the position where the contact 101 of each voltage transformer 1 is separated from the branch connection row 3, the contact 101 of the voltage transformer 1 contacts the contact portion 31, so that the release component 30 can release the residual charge generated by the voltage transformer 1 in the process of separation from the branch connection row 3, thereby ensuring the reliability and safety of the trolley movement; an insulator 4, the insulator 4 is installed in the first installation space 200, and the insulator 4 is connected to the branch connection row 3; an earthing switch 5, the branch connection row 3 is connected to the earthing switch 5.
[0040] Specifically, multiple voltage transformers 1 each include a transformer body and contacts 101 that are interconnected, there are multiple branch connection bars 3 and multiple insulators 4, multiple branch connection bars 3 and multiple insulators 4 are connected one-to-one, and the contacts 101 of multiple voltage transformers 1 are connected one-to-one with multiple branch connection bars 3.
[0041] Specifically, the trolley 20 includes a bearing seat and a roller 21 connected to each other, and the roller 21 is movably disposed on the mounting seat 10 .
[0042] Specifically, the switch cabinet further includes a circuit breaker chamber 6, a cable chamber 7 and an instrument chamber 8. The circuit breaker chamber 6, the cable chamber 7 and the instrument chamber 8 are existing structures and will not be described in detail.
[0043] From the above description, it can be seen that the above embodiments of the utility model achieve the following technical effects:
[0044] The utility model provides a switch cabinet, comprising: a cabinet body 2, having a first installation space 200; a voltage transformer 1 and a trolley 20, the voltage transformer 1 being installed on the trolley 20, and the trolley 20 being movably installed in the first installation space 200; a power release component 30, installed in the first installation space 200 and grounded, the power release component 30 having a contact portion 31 protruding toward the voltage transformer 1, so that when the trolley 20 moves toward the outside of the first installation space 200, the contact portion 31 contacts with the voltage transformer 1 to release the residual charge on the voltage transformer 1, so that the residual charge can be prevented from causing electric shock to the human body in the process of pushing out the trolley, thereby improving the safety of the use of the trolley.
[0045] The above description is only the preferred embodiment of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.
Claims
1. A switch cabinet, characterized in that: include: The cabinet body (2) has a first installation space (200); A voltage transformer (1) and a trolley (20), wherein the voltage transformer (1) is mounted on the trolley (20), and the trolley (20) is movably mounted in the first installation space (200); A charge release component (30) is installed in the first installation space (200) and is grounded. The charge release component (30) has a contact portion (31) protruding toward the voltage transformer (1), so that when the trolley (20) moves toward the outside of the first installation space (200), the contact portion (31) contacts the voltage transformer (1) to release the residual charge on the voltage transformer (1).
2. The switch cabinet according to claim 1, characterized in that: A mounting seat (10) is provided in the first mounting space (200), and the trolley (20) is slidably connected to the mounting seat (10); The discharge assembly (30) comprises a mounting portion (32), the mounting portion (32) being connected to the mounting seat (10), the mounting portion (32) extending in a direction away from the mounting seat (10), and the contact portion (31) being mounted on the mounting portion (32).
3. The switch cabinet according to claim 2, characterized in that: The contact portion (31) is fixedly connected to the mounting portion (32), and the contact portion (31) comprises an elastic component, and the elastic component contacts the voltage transformer (1) and undergoes elastic deformation.
4. The switch cabinet according to claim 2, characterized in that: The contact portion (31) is movably connected to the mounting portion (32), so that when the voltage transformer (1) is in contact with the contact portion (31), the contact portion (31) can move relative to the mounting portion (32).
5. The switch cabinet according to claim 2, characterized in that: The contact portion (31) comprises a release rod, and the release rod is movably arranged on the mounting portion (32).
6. The switch cabinet according to claim 5, characterized in that: The mounting portion (32) comprises a fixing sleeve, and the power release rod is telescopically arranged in the fixing sleeve; the power release assembly (30) further comprises: A first elastic member, wherein the first elastic member is located in the barrel cavity of the fixing sleeve, one end of the first elastic member is connected to the fixing sleeve, and the other end of the first elastic member is connected to the release rod.
7. The switch cabinet according to any one of claims 2 to 6, characterized in that: The mounting portion (32) comprises: A first mounting beam (321), one end of the first mounting beam (321) being connected to the mounting seat (10); A second mounting beam (322), the second mounting beam (322) is connected to the first mounting beam (321), the first mounting beam (321) and the second mounting beam (322) are arranged at a preset angle, the second mounting beam (322) is located above the voltage transformer (1) and is spaced apart from the voltage transformer (1), and the contact portion (31) is arranged on the second mounting beam (322).
8. The switch cabinet according to claim 7, characterized in that: The preset angle is 90°, and the second mounting beam (322) is arranged parallel to the mounting seat (10); and / or, There are two first mounting beams (321), the two first mounting beams (321) are arranged at intervals, and the two ends of the second mounting beam (322) are respectively connected to the two first mounting beams (321).
9. The switch cabinet according to any one of claims 1 to 6, characterized in that: There are a plurality of voltage transformers (1), and the plurality of voltage transformers (1) are arranged at intervals on the trolley (20); there are a plurality of contact portions (31), and the plurality of contact portions (31) are arranged in a one-to-one correspondence with the plurality of voltage transformers (1).
10. The switch cabinet according to any one of claims 1 to 6, characterized in that: The voltage transformer (1) comprises a transformer body and a contact (101) connected to each other; the switch cabinet comprises: A branch connection bar (3), wherein the contact (101) of the voltage transformer (1) can be selectively connected or separated from the branch connection bar (3), and when the trolley (20) moves outward to a position where the contact (101) of each voltage transformer (1) is separated from the branch connection bar (3), the contact (101) of the voltage transformer (1) contacts the contact portion (31); an insulator (4), the insulator (4) being installed in the first installation space (200), the insulator (4) being connected to the branch connection bar (3); A grounding switch (5), wherein the branch connection bar (3) is connected to the grounding switch (5).