Novel electromagnetic voltage transformer

Abstract

The utility model discloses a novel electromagnetic voltage transformer which comprises a base, a porcelain shell is installed at the top end of the base, umbrella skirts are installed on the outer wall of the porcelain shell at equal intervals, a waterproof connecting assembly is installed between the base and the porcelain shell, and the waterproof connecting assembly comprises a protection ring arranged on the outer side of the base in a sleeved mode. The protection ring shields a contact gap between the base and the porcelain shell, the top end of the protection ring makes contact with the bottom wall of the umbrella skirt at the bottommost end of the porcelain shell, a water accumulation annular groove is formed in the top end of the protection ring, and drainage grooves are formed in the protection ring at equal angles. According to the utility model, during working, the protection ring is arranged outside the base and the porcelain shell, so that a contact gap between the base and the porcelain shell can be shielded, rainwater entering the inner cavity of the base is reduced, and meanwhile, the top wall of the protection ring is in contact with the bottom wall of the bottommost umbrella skirt on the porcelain shell, so that rainwater entering the inner side of the protection ring is reduced; therefore, rainwater entering the inner cavity of the base is further reduced, and the protection of the electronic component is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of voltage transformers, in particular to a novel electromagnetic voltage transformer. Background Art

[0002] The function of electromagnetic voltage transformer is to convert high voltage or large current into standard low voltage or standard small current in proportion, so as to realize the standardization and miniaturization of measuring instruments, protection equipment and automatic control equipment. The transformer can also be used to separate high voltage systems to ensure the safety of people and equipment. Generally, electromagnetic voltage transformer consists of a base, a porcelain shell, and an internally arranged battery core and winding, but it still has the following defects:

[0003] Since the base and the porcelain shell are generally connected and fixed by bolts, and the electromagnetic voltage transformer is often installed in the external environment, when the external environment is rainy, rainwater may enter the inner cavity of the porcelain shell along the contact gap between the base and the porcelain shell, causing the electronic components such as the battery core and winding to be invaded by rainwater, thereby shortening the service life of the electromagnetic voltage transformer. Utility Model Content

[0004] In view of the above situation, in order to overcome the defects of the prior art, the utility model provides a new electromagnetic voltage transformer, which effectively solves the problem that rainwater may enter the inner cavity of the porcelain shell along the contact gap between the base and the porcelain shell, causing damage to electronic components.

[0005] To achieve the above object, the utility model provides the following technical solutions: a novel electromagnetic voltage transformer, comprising a base, a porcelain shell is installed on the top of the base, sheds are installed at equal intervals on the outer wall of the porcelain shell, and a waterproof connection component is installed between the base and the porcelain shell;

[0006] The waterproof connection component includes a protective ring sleeved on the outside of the base, the protective ring blocks the contact gap between the base and the porcelain shell, the top of the protective ring contacts the bottom wall of the umbrella skirt at the bottom end of the porcelain shell, the top of the protective ring is provided with a water accumulation ring groove, the inside of the protective ring is provided with drainage grooves at equal angles, the top of the drainage groove is connected with the water accumulation ring groove, and the bottom of the drainage groove passes through to the bottom of the protective ring.

[0007] Preferably, the inner wall of the protective ring is in close contact with the outer wall of the base and the outer wall of the porcelain shell, a first card slot is opened at an equal angle on the outer wall of the base, a second card slot is opened at an equal angle on the outer wall of the porcelain shell, a side box is installed at an equal angle on the outer side of the protective ring, a movable plate is slidably installed inside the side box, two clamping rods are installed on the side of the movable plate close to the protective ring, the clamping rods penetrate to the inner side of the protective ring, and the two clamping rods are respectively clamped with the first clamping slot and the second clamping slot.

[0008] Preferably, a positioning groove is formed at an equal angle on the top of the base, and a positioning block is installed at an equal angle on the bottom of the porcelain shell, and the positioning block is inserted into the positioning groove.

[0009] Preferably, a screw is provided on a side of the movable plate away from the clamping rod, the screw thread is installed inside a screw barrel, and the screw barrel is fixedly installed on a side of the side box away from the protective ring.

[0010] Preferably, a limit rotation block is installed at one end of the screw rod close to the movable plate, and the limit rotation block is rotatably installed inside a limit rotation groove, and the limit rotation groove is opened inside the movable plate.

[0011] Preferably, a mounting frame is fixedly mounted on the top of the base, an iron core is mounted on the mounting frame, an upper column winding is mounted on the top of the iron core, and a lower column winding is mounted on the bottom of the iron core.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] During operation, the protective ring is installed on the outside of the base and the porcelain shell, so that the contact gap between the base and the porcelain shell can be blocked, reducing rainwater from entering the inner cavity of the base. At the same time, the top wall of the protective ring contacts the bottom wall of the lowest umbrella skirt on the porcelain shell, reducing rainwater from entering the inner side of the protective ring, thereby further reducing rainwater from entering the inner cavity of the base, thereby improving the protection of electronic components.

[0014] During operation, a water accumulation ring groove is provided at the top of the protective ring, and a drainage groove is provided at the bottom of the water accumulation ring groove. The drainage groove runs through the bottom of the protective ring. When rainwater enters between the umbrella skirt and the protective ring, the rainwater flows into the water accumulation ring groove and is discharged from the drainage groove, further reducing the amount of rainwater entering the inner cavity of the base and improving the protection of electronic components.

[0015] During operation, when the protective ring moves up and contacts the bottom wall of the lowest umbrella skirt, the screw is turned to push the movable plate toward the protective ring, so that the two clamping rods are clamped into the first clamping groove and the second clamping groove, and the base and the porcelain shell are clamped and fixed for easy installation. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation to the present invention.

[0017] In the attached picture:

[0018] Figure 1 This is a schematic diagram of the structure of a new electromagnetic voltage transformer of the utility model;

[0019] Figure 2 This is a schematic diagram of the internal structure of the porcelain shell of the utility model;

[0020] Figure 3 This is a schematic diagram of the base and porcelain shell structure of the utility model;

[0021] Figure 4 This is a schematic diagram of the protection ring structure of the utility model;

[0022] Figure 5 It is a schematic diagram of the movable plate structure of the utility model.

[0023] In the figure: 1. base; 2. porcelain shell; 3. umbrella skirt; 4. mounting frame; 5. iron core; 6. upper column winding; 7. lower column winding; 8. waterproof connection assembly; 801. positioning groove; 802. positioning block; 803. first clamping groove; 804. second clamping groove; 805. protection ring; 806. water accumulation ring groove; 807. drainage groove; 808. side box; 809. movable plate; 810. clamping rod; 811. screw barrel; 812. screw; 813. limit rotation block; 814. limit rotation groove. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments; based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0025] Embodiment 1, by Figure 1-5 The utility model relates to a novel electromagnetic voltage transformer, comprising a base 1, a porcelain shell 2 is installed on the top of the base 1, sheds 3 are installed at equal intervals on the outer wall of the porcelain shell 2, and a waterproof connection component 8 is installed between the base 1 and the porcelain shell 2;

[0026] The waterproof connection assembly 8 includes a protective ring 805 sleeved on the outside of the base 1, the protective ring 805 blocks the contact gap between the base 1 and the porcelain shell 2, the top of the protective ring 805 contacts the bottom wall of the umbrella skirt 3 at the bottom of the porcelain shell 2, and the protective ring 805 is installed on the outside of the base 1 and the porcelain shell 2, which can block the contact gap between the base 1 and the porcelain shell 2, reducing rainwater from entering the inner cavity of the base 1. At the same time, the top wall of the protective ring 805 contacts the bottom wall of the umbrella skirt 3 at the bottom of the porcelain shell 2, reducing rainwater from entering the inner side of the protective ring 805, thereby further reducing rainwater from entering the inner cavity of the base 1 and improving the protection of electronic components. The top of the protective ring 805 is provided with a water accumulation ring groove 806 for protection. The inner part of the ring 805 is provided with drainage grooves 807 at equal angles, the top of the drainage groove 807 is connected with the water accumulation groove 806, the bottom of the drainage groove 807 penetrates to the bottom of the protective ring 805, the top of the protective ring 805 is provided with a water accumulation groove 806, the bottom of the water accumulation groove 806 is provided with a drainage groove 807, the drainage groove 807 penetrates to the bottom of the protective ring 805, when rainwater enters between the umbrella skirt 3 and the protective ring 805, the rainwater flows into the water accumulation groove 806 and is discharged from the drainage groove 807, further reducing the rainwater from entering the inner cavity of the base 1, improving the protection of the electronic components, the inner side wall of the protective ring 805 is in close contact with the outer wall of the base 1 and the outer wall of the porcelain shell 2, and the outer wall of the base 1 is in close contact with the outer wall of the porcelain shell 2. A first card slot 803 is provided at an equal angle on the wall, a second card slot 804 is provided at an equal angle on the outer wall of the porcelain shell 2, a side box 808 is installed at an equal angle on the outer side of the protection ring 805, a movable plate 809 is slidably installed inside the side box 808, two clamping rods 810 are installed on the side of the movable plate 809 close to the protection ring 805, the clamping rod 810 penetrates the inner side of the protection ring 805, and the two clamping rods 810 are respectively clamped with the first card slot 803 and the second card slot 804, a positioning slot 801 is provided at an equal angle on the top of the base 1, a positioning block 802 is installed at an equal angle on the bottom of the porcelain shell 2, the positioning block 802 is clamped into the inside of the positioning slot 801, and the movable plate 809 is away from the clamping rod 810 A screw rod 812 is provided on one side of the side box 808, and the screw rod 812 is threadedly installed in the interior of the screw barrel 811. The screw barrel 811 is fixedly installed on the side of the side box 808 away from the protective ring 805. A limit rotation block 813 is installed at one end of the screw rod 812 close to the movable plate 809. The limit rotation block 813 is rotatably installed in the interior of the limit rotation groove 814. The limit rotation groove 814 is opened in the interior of the movable plate 809. When the protective ring 805 moves up and contacts the bottom wall of the lowest umbrella skirt 3, the screw rod 812 is turned to push the movable plate 809 toward the protective ring 805, so that the two clamping rods 810 are clamped into the first clamping groove 803 and the second clamping groove 804, and the base 1 and the porcelain shell 2 are clamped and fixed, which is convenient for installation.

[0027] A mounting frame 4 is fixedly mounted on the top of the base 1 , an iron core 5 is mounted on the mounting frame 4 , an upper column winding 6 is mounted on the top of the iron core 5 , and a lower column winding 7 is mounted on the bottom of the iron core 5 .

[0028] Working principle: During installation, the porcelain shell 2 is installed on the base 1, so that the positioning block 802 at the bottom of the porcelain shell 2 is correspondingly inserted into the positioning groove 801 on the base 1, and then the protective ring 805 on the outside of the base 1 is moved upward until the top of the protective ring 805 contacts the bottom wall of the lowest umbrella skirt 3 on the outer wall of the porcelain shell 2, so that the protective ring 805 blocks the contact gap between the base 1 and the porcelain shell 2. At the same time, there is an umbrella skirt 3 above the protective ring 805 for shielding, reducing rainwater from entering the inner cavity of the porcelain shell 2, which is convenient for protecting electronic components;

[0029] Since a water accumulation groove 806 is provided at the top of the protection ring 805, when water flows along the umbrella skirt 3 to the top of the protection ring 805, the water flows into the water accumulation groove 806 and is discharged from the drainage groove 807, further reducing the rainwater from entering the inner cavity of the porcelain housing 2, and further protecting the electronic components;

[0030] When the protective ring 805 moves up and contacts the bottom wall of the lowest umbrella skirt 3, the screw 812 is turned to push the movable plate 809 toward the protective ring 805, so that the two clamping rods 810 are clamped into the first clamping groove 803 and the second clamping groove 804, and the base 1 and the porcelain shell 2 are clamped and fixed for easy installation.

Claims

1. A novel electromagnetic voltage transformer, comprising a base (1), characterized in that: A porcelain shell (2) is installed at the top of the base (1), umbrella skirts (3) are installed at equal intervals on the outer wall of the porcelain shell (2), and a waterproof connection component (8) is installed between the base (1) and the porcelain shell (2); The waterproof connection assembly (8) comprises a protective ring (805) sleeved on the outside of the base (1), the protective ring (805) shielding the contact gap between the base (1) and the porcelain shell (2), the top of the protective ring (805) contacting the bottom wall of the umbrella skirt (3) at the bottom of the porcelain shell (2), the top of the protective ring (805) is provided with a water accumulation annular groove (806), the inside of the protective ring (805) is provided with drainage grooves (807) at equal angles, the top of the drainage groove (807) is connected to the water accumulation annular groove (806), and the bottom of the drainage groove (807) penetrates to the bottom of the protective ring (805).

2. A novel electromagnetic voltage transformer according to claim 1, characterized in that: The inner side wall of the protective ring (805) is in close contact with the outer wall of the base (1) and the outer wall of the porcelain shell (2); a first clamping groove (803) is provided at an equal angle on the outer wall of the base (1); a second clamping groove (804) is provided at an equal angle on the outer wall of the porcelain shell (2); a side box (808) is installed at an equal angle on the outer side of the protective ring (805); a movable plate (809) is slidably installed inside the side box (808); two clamping rods (810) are installed on a side of the movable plate (809) close to the protective ring (805); the clamping rods (810) penetrate the inner side of the protective ring (805), and the two clamping rods (810) are respectively clamped with the first clamping groove (803) and the second clamping groove (804).

3. A novel electromagnetic voltage transformer according to claim 1, characterized in that: The top end of the base (1) is provided with a positioning groove (801) at an equal angle, and the bottom end of the porcelain housing (2) is provided with a positioning block (802) at an equal angle, and the positioning block (802) is inserted into the positioning groove (801).

4. A novel electromagnetic voltage transformer according to claim 2, characterized in that: A screw rod (812) is provided on a side of the movable plate (809) away from the clamping rod (810), and the screw rod (812) is threadedly mounted inside a screw barrel (811), and the screw barrel (811) is fixedly mounted on a side of the side box (808) away from the protective ring (805).

5. A novel electromagnetic voltage transformer according to claim 4, characterized in that: A limit rotation block (813) is installed at one end of the screw rod (812) close to the movable plate (809), and the limit rotation block (813) is rotatably installed inside a limit rotation groove (814), and the limit rotation groove (814) is opened inside the movable plate (809).

6. A novel electromagnetic voltage transformer according to claim 1, characterized in that: A mounting frame (4) is fixedly mounted on the top of the base (1), an iron core (5) is mounted on the mounting frame (4), an upper column winding (6) is mounted on the top of the iron core (5), and a lower column winding (7) is mounted on the bottom of the iron core (5).

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