Zinc oxide voltage-sensitive ceramic aging equipment

Abstract

The utility model discloses a zinc oxide voltage-sensitive ceramic aging device, comprising an aging cabinet body, one side of the aging cabinet body is provided with a cabinet door, two sides in the aging cabinet body are provided with tray support frames, opposite inner sides of the tray support frames are provided with a plurality of longitudinally arranged sliding chutes, and the sliding chutes are internally provided with slidable conductive trays; a conductive plate is arranged above the conductive tray, a plurality of conductive pressing heads are arranged below the conductive plate, and the side face of the conductive plate is connected with a lifting device. The conductive tray is not in contact with the conductive plate; the conductive tray and the conductive plate are connected to a common controller, and the outer side of the aging cabinet body is provided with an operation panel connected with the controller. The aging equipment disclosed by the utility model can be used for aging zinc oxide voltage-sensitive ceramics, and has the characteristics of simple structure, convenience in use, reasonable design, high product consistency and difficulty in loss of ceramic chips.

Description

Technical Field

[0001] The utility model relates to a zinc oxide varistor ceramic processing device, in particular to a zinc oxide varistor ceramic aging device. Background Art

[0002] Zinc oxide varistor ceramic is a functional ceramic with varistor properties made of zinc oxide as the main raw material. Its preparation process requires multiple steps such as mixing, pressing, sintering and silvering.

[0003] Aging is a phenomenon in which the electrical properties of zinc oxide varistor ceramics gradually decline with the increase of duration during operation. It has a negative impact on zinc oxide varistor ceramics and will shorten the service life of zinc oxide varistor ceramics.

[0004] However, the researchers of this application found that the performance of zinc oxide varistor ceramics produced in batches was not stable at the beginning of production. However, by adding an aging process to the production process and subjecting the zinc oxide varistor ceramics to appropriate aging treatment, zinc oxide varistor ceramics with more stable performance can be obtained.

[0005] However, since the aging process is not a necessary step in the traditional production process of zinc oxide varistor ceramics, there is currently no aging equipment designed specifically for the aging process of zinc oxide varistor ceramics. Utility Model Content

[0006] In order to solve the above technical problems, the present invention provides a zinc oxide varistor ceramic aging device. The present invention can perform aging treatment on zinc oxide varistor ceramics and has the characteristics of simple structure, convenient use, reasonable design, high product consistency and low ceramic wear.

[0007] The technical solution of this utility model:

[0008] A zinc oxide pressure-sensitive ceramic aging device includes an aging cabinet, a cabinet door is provided on one side of the aging cabinet, tray support frames are provided on both sides of the aging cabinet, and a plurality of longitudinally arranged slide grooves are provided on the opposite inner sides of the tray support frames, and a slidable conductive tray is provided in the slide grooves;

[0009] A conductive plate is provided above the conductive tray, a plurality of conductive voltage heads are provided below the conductive plate, and a lifting device is connected to the side of the conductive plate;

[0010] The conductive tray and the conductive plate do not contact each other;

[0011] The conductive tray and the conductive plate are connected to a common controller, and an operation panel connected to the controller is provided on the outer side of the aging cabinet.

[0012] Preferably, in the aforementioned zinc oxide pressure-sensitive ceramic aging equipment, the tray support frame and the slide groove are both made of conductive materials.

[0013] Preferably, in the aforementioned zinc oxide varistor ceramic aging equipment, the lifting device includes a stepper motor arranged at the top or bottom of both sides of the aging cabinet, the output end of the stepper motor is connected to a vertically downward screw, and a plurality of threaded sleeves are threadedly connected to the screw, and the threaded sleeves are fixedly connected to the conductive plate.

[0014] Preferably, in the aforementioned zinc oxide varistor ceramic aging equipment, the conductive tray includes a conductive base plate, the upper surface of the conductive base plate is covered with a grid plate made of insulating material, and a plurality of positioning grids are distributed on the grid plate.

[0015] Preferably, in the aforementioned zinc oxide varistor ceramic aging equipment, the surface of the conductive base plate at the bottom of the positioning grid is provided with conductive contacts protruding upwards.

[0016] Preferably, in the aforementioned zinc oxide varistor ceramic aging equipment, at least three conductive contacts are provided on the conductive base plate at the bottom of each positioning grid, and the connecting lines between the conductive contacts are distributed in the form of regular triangles or regular polygons.

[0017] Preferably, in the aforementioned zinc oxide varistor ceramic aging equipment, a limiting hole is provided on the conductive bottom plate below the conductive contact, and a conductive spring is provided in the limiting hole; the conductive contact and the conductive bottom plate are elastically connected via the conductive spring.

[0018] Preferably, in the aforementioned zinc oxide varistor ceramic aging equipment, a plurality of through holes are provided on the conductive plate, and the conductive voltage head includes a conductive rod, which is slidably inserted into the through hole, and the top end of the conductive rod is provided with an upper limit convex disk, and the bottom end is provided with a lower limit convex disk, and the conductive rod part below the conductive plate is provided with a reset spring.

[0019] Beneficial effects of the utility model:

[0020] 1. The aging equipment of the present invention is mainly composed of an aging cabinet, a conductive tray, a conductive plate, a conductive voltage head and a controller, and can perform batch aging treatment on zinc oxide varistor ceramics.

[0021] 2. The aging equipment of this utility model has a simple structure, reasonable design, easy use and strong practicality.

[0022] 3. The conductive tray of the aging equipment of the present invention is reasonably designed, has good contact stability and high process consistency.

[0023] 4. The conductive voltage head of the aging equipment of the present invention is reasonably designed, and the zinc oxide varistor ceramic piece is not easily damaged during the aging treatment. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Attachment Figure 1 This is a schematic diagram of the internal structure of the utility model;

[0025] Attachment Figure 2 This is a schematic diagram of the appearance of the utility model;

[0026] Attachment Figure 3 This is a schematic structural diagram of the conductive tray of the utility model;

[0027] Attachment Figure 4 It is a partial schematic diagram of the conductive tray of the utility model;

[0028] Attachment Figure 5 It is a structural schematic diagram of the conductive voltage head of the present utility model.

[0029] Explanation of the accompanying drawings: 1-aging cabinet, 2-cabinet door, 3-tray support frame, 4-slide, 5-conductive tray, 6-conductive plate, 7-conductive voltage head, 8-controller, 9-operation panel, 10-stepping motor, 11-screw, 12-screw, 51-conductive bottom plate, 52-grid plate, 53-positioning grid, 54-conductive contact, 55-limiting hole, 56-conductive spring, 61-through hole, 71-conductive rod, 72-upper limit convex disc, 73-lower limit convex disc, 74-reset spring. DETAILED DESCRIPTION

[0030] The present invention will be further described below with reference to the embodiments, but they are not intended to limit the present invention.

[0031] Embodiments of the present utility model

[0032] A zinc oxide varistor ceramic aging device, as shown in the attached Figure 1-5 As shown, it includes an aging cabinet 1, a cabinet door 2 is provided on one side of the aging cabinet 1, tray support frames 3 are provided on both sides of the aging cabinet 1, and a plurality of longitudinally arranged slide grooves 4 are provided on the opposite inner sides of the tray support frames 3, and a slidable conductive tray 5 is provided in the slide grooves 4;

[0033] A conductive plate 6 is provided above the conductive tray 5, and a plurality of conductive voltage heads 7 are provided below the conductive plate 6. A lifting device is connected to the side of the conductive plate 6.

[0034] The conductive tray 5 and the conductive plate 6 do not contact each other;

[0035] The conductive tray 5 and the conductive plate 6 are connected to a common controller 8 , and an operation panel 9 connected to the controller 8 is provided on the outside of the aging cabinet 1 .

[0036] When aging zinc oxide varistor ceramics, first open the cabinet door 2, take out the conductive tray 5 from the slide 4, place the zinc oxide varistor ceramic sheet in the set area on the conductive tray 5, and then insert the conductive tray 5 covered with zinc oxide varistor ceramic sheets into the slide 4. After all the conductive trays 5 are placed with zinc oxide varistor ceramic sheets, close the cabinet door 2, and drive the lifting device manually or electrically to drive the conductive plate 6 downward until the conductive voltage head 7 contacts the zinc oxide varistor ceramic sheet on the conductive tray 5 below, so that a loop is formed between the controller 8, the conductive tray 5, the zinc oxide varistor ceramic sheet, the conductive voltage head 7, the conductive plate 6 and the controller 8; then input the aging voltage and time and other parameters on the operation panel 9. After starting, the controller 8 applies the aging voltage to the zinc oxide varistor ceramic sheet until the aging time is over, and the aged zinc oxide varistor ceramic sheet can be taken out.

[0037] Further implementation examples are attached Figure 1-5 As shown, the tray support frame 3 and the slide groove 4 are both made of conductive materials.

[0038] Insulation treatment is required between the tray support frame 3 and the aging cabinet 1 in this embodiment to prevent leakage of the aging cabinet 1. During aging, electrical conduction can be carried out through the tray support frame 3 and the slide groove 4, saving the use of wires.

[0039] Further implementation examples are attached Figure 1-5 As shown, the lifting device includes a stepper motor 10 arranged at the top or bottom of both sides of the aging cabinet 1, the stepper motor 10 is connected to the controller 8, and the output end of the stepper motor 10 is connected to a vertically downward screw 11, and a plurality of threaded sleeves 12 are threadedly connected to the screw 11, and the threaded sleeves 12 are fixedly connected to the conductive plate 6.

[0040] When the lifting device of this embodiment is in use, the controller 8 is first used to control the stepper motor 10 to rotate in one direction, so that the threaded sleeve 12 climbs upward along the screw 11; then after the zinc oxide varistor ceramic sheet is placed, the stepper motor 10 is controlled to rotate in the opposite direction, so that the threaded sleeve 12 moves downward along the screw 11 until the conductive voltage head 7 contacts the zinc oxide varistor ceramic sheet and stops.

[0041] Further implementation examples are attached Figure 1-5 As shown, the conductive tray 5 includes a conductive bottom plate 51 , the upper surface of the conductive bottom plate 51 is covered with a grid plate 52 made of insulating material, and a plurality of positioning grids 53 are distributed on the grid plate 52 .

[0042] The main body of the conductive tray 5 of this embodiment is composed of a conductive bottom plate 51 and a grid plate 52. The zinc oxide piezoresistive ceramic sheet is placed in the positioning grid 53 to achieve rapid positioning and placement, while the conductive bottom plate 51 below is used to conduct electricity to the zinc oxide piezoresistive ceramic sheet.

[0043] Further implementation examples are attached Figure 1-5 As shown, the surface of the conductive base plate 51 at the bottom of the positioning grid 53 is provided with conductive contacts 54 protruding upward.

[0044] In this embodiment, the top of the conductive contact 54 exceeds the upper surface of the conductive bottom plate 51. When the zinc oxide varistor ceramic sheet is placed, its bottom surface contacts the conductive contact 54, making the contact more stable.

[0045] Further implementation examples are attached Figure 1-5 As shown, at least three conductive contacts 54 are provided on the conductive base plate 51 at the bottom of each positioning grid 53 , and the connecting lines between the conductive contacts 54 are distributed in the shape of a regular triangle or a regular polygon.

[0046] Further implementation examples are attached Figure 1-5 As shown, a limiting hole 55 is provided on the conductive bottom plate 51 below the conductive contact 54 , and a conductive spring 56 is provided in the limiting hole 55 ; the conductive contact 54 and the conductive bottom plate 51 are elastically connected via the conductive spring 56 .

[0047] The conductive contacts 54 of this embodiment are connected to the conductive base plate 51 via the conductive springs 56 , so that the contacts have a certain amount of space to move, thereby preventing hard contact from damaging the zinc oxide pressure-sensitive ceramic sheet.

[0048] Further implementation examples are attached Figure 1-5 As shown, the conductive plate 6 is provided with a plurality of through holes 61, and the conductive voltage head 7 includes a conductive rod 71, which is slidably inserted into the through hole 61, and the top of the conductive rod 71 is provided with an upper limit convex disk 72, and the bottom end is provided with a lower limit convex disk 73, and the conductive rod 71 part below the conductive plate 6 is provided with a reset spring 74.

[0049] The conductive rod 71 of this embodiment is connected to the conductive plate 6 by sliding, and a reset spring 74 is provided. When the conductive rod 71 contacts the zinc oxide pressure-sensitive ceramic sheet, the conductive rod 71 has a certain expansion and contraction space, the purpose of which is also to avoid hard contact from damaging the zinc oxide pressure-sensitive ceramic sheet.

[0050] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention, who makes equivalent replacements or changes based on the technical solution and the utility model of the present invention, should be covered by the protection scope of the present invention.

Claims

1. A zinc oxide varistor ceramic aging device, characterized by: The invention comprises an aging cabinet (1), wherein a cabinet door (2) is provided on one side of the aging cabinet (1), tray support frames (3) are provided on both sides of the aging cabinet (1), a plurality of longitudinally arranged slide grooves (4) are provided on opposite inner sides of the tray support frames (3), and a slidable conductive tray (5) is provided in the slide grooves (4); A conductive plate (6) is provided above the conductive tray (5), a plurality of conductive voltage heads (7) are provided below the conductive plate (6), and a lifting device is connected to the side of the conductive plate (6); The conductive tray (5) and the conductive plate (6) do not contact each other; The conductive tray (5) and the conductive plate (6) are connected to a common controller (8), and an operating panel (9) connected to the controller (8) is provided on the outside of the aging cabinet (1).

2. The zinc oxide varistor ceramic aging equipment according to claim 1, characterized in that: The tray support frame (3) and the slide groove (4) are both made of conductive materials.

3. The zinc oxide varistor ceramic aging equipment according to claim 1, characterized in that: The lifting device comprises a stepper motor (10) arranged at the top or bottom of both sides of the aging cabinet (1), the output end of the stepper motor (10) is connected to a vertically downward screw rod (11), a plurality of threaded sleeves (12) are threadedly connected to the screw rod (11), and the threaded sleeves (12) are fixedly connected to the conductive plate (6).

4. The zinc oxide varistor ceramic aging equipment according to claim 1, characterized in that: The conductive tray (5) comprises a conductive bottom plate (51), the upper surface of the conductive bottom plate (51) is covered with a grid plate (52) made of insulating material, and a plurality of positioning grids (53) are distributed on the grid plate (52).

5. The zinc oxide varistor ceramic aging equipment according to claim 4, characterized in that: The surface of the conductive bottom plate (51) at the bottom of the positioning grid (53) is provided with conductive contacts (54) protruding upwards.

6. The zinc oxide varistor ceramic aging equipment according to claim 5, characterized in that: At least three conductive contacts (54) are provided on the conductive base plate (51) at the bottom of each positioning grid (53), and the connecting lines between the conductive contacts (54) are distributed in the form of regular triangles or regular polygons.

7. The zinc oxide varistor ceramic aging equipment according to claim 5, characterized in that: A limiting hole (55) is provided on the conductive bottom plate (51) below the conductive contact (54), and a conductive spring (56) is provided in the limiting hole (55); the conductive contact (54) and the conductive bottom plate (51) are elastically connected via the conductive spring (56).

8. The zinc oxide varistor ceramic aging equipment according to claim 1, characterized in that: The conductive plate (6) is provided with a plurality of through holes (61), and the conductive voltage head (7) includes a conductive rod (71) which is slidably inserted into the through hole (61). The top end of the conductive rod (71) is provided with an upper limit convex disc (72), and the bottom end is provided with a lower limit convex disc (73). The portion of the conductive rod (71) below the conductive plate (6) is sleeved with a reset spring (74).

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