CN220041602U - Capacitor seat board with six guard plates and capacitor seat board with three guard plates - Google Patents

Abstract

The utility model discloses a capacitor seat board with six guard plates, which comprises a bottom plate and a guard plate assembly vertically arranged on the surface of the bottom plate, wherein the guard plate assembly comprises a first positive electrode side guard plate, a first positive electrode front guard plate, a second positive electrode side guard plate, a second positive electrode front guard plate, a first negative electrode side guard plate and a second negative electrode side guard plate, a first cambered surface chamfer for adapting to a capacitor shell is arranged at the connecting edge of the guard plate assembly and the bottom plate, the radian of the inner surface of the guard plate assembly is pi/8 pi/4, the shock resistance of a capacitor is improved to the greatest extent, the contact area with the capacitor is increased, a stable guard plate assembly structure is formed, and the capacitor is integrally stable and can be more firmly arranged in a PCB (printed circuit board) by arranging the guard plate assembly to be higher than the center height of the capacitor, so that the capacitor has stronger shock resistance, the problem of loosening or falling of the capacitor is solved, and the market demand is met.

Description

Capacitor seat board with six guard plates and capacitor seat board with three guard plates

Technical Field

The utility model relates to the technical field of capacitor bases, in particular to a capacitor base plate with six guard plates.

Background

Capacitors are an integral part of the circuit and are typically soldered to the circuit board. In recent years, with the rapid development of electronic technology, printed Circuit Boards (PCBs) are becoming more and more popular for use in electronic products due to their low cost and high automation level. However, as the application field of electronic products is continuously expanded, the application environment is increasingly severe, and particularly in a working environment with larger vibration, the phenomenon of loosening, falling off and the like of a capacitor welded on a PCB often occurs, so that the normal operation of the electronic equipment is affected.

In this context, vibration-resistant capacitor bases have been developed that reduce the impact of vibration on the solder connection between the capacitor and the PCB by adding a backplate base between the capacitor and the PCB. However, the base of the anti-vibration capacitor in the prior art is difficult to ensure firm contact between the capacitor and the PCB especially under the working conditions of high vibration frequency and large vibration amplitude, and the phenomenon of falling easily occurs, so that the base cannot meet the market demand.

As disclosed in chinese patent (CN 207529815U), an anti-vibration capacitor base includes a base bottom plate, an elastic support pad and at least 3 guard plates, the elastic support pad is disposed on the lower surface of the base bottom plate, and the elastic support pad is used for connecting with a PCB board; each guard plate is vertically arranged on the upper surface of the base bottom plate, the inner surface of each guard plate is attached to the capacitor shell, and the capacitor is radially fixed in the space formed by each guard plate; the base bottom plate is provided with jacks of two capacitor electrode outgoing lines, the lower surface of the base bottom plate is provided with two electrode plates, the two electrode plates are respectively used for fixing the two electrode outgoing lines of the capacitor, and the capacitor base is fixed on the PCB by welding the two electrode plates on the PCB. Above-mentioned anti-vibration capacitor base sets up the elastic support pad on the base bottom plate, increases the strong point between anti-vibration capacitor base and the PCB board to form the space and support, effectively slow down vibrations, promote the steady effect of anti-vibration capacitor base and PCB board.

However, when the present inventors embodied this device, the following drawbacks were found to exist: the existing capacitor has a certain protection effect, but the contact area with the capacitor is small, and particularly, under the working conditions of high vibration frequency and large vibration amplitude, firm contact between the capacitor and the PCB is difficult to ensure, the phenomenon of falling easily occurs, and the market demand cannot be met.

Disclosure of Invention

In view of the foregoing, it is desirable to provide a capacitor seat plate with six shields, which increases the contact area with the capacitor by providing shield assemblies (six shields) in the bottom plate; through setting up the high height that is higher than the condenser center height of backplate subassembly for the condenser is whole stable, can install in the PCB board more firmly, consequently possesses stronger shock resistance, solves the condenser and appears not hard up or drop the problem.

In order to solve the technical problems, the utility model adopts the following technical scheme:

a capacitor plate with six guard plates.

The capacitor seat board with six guard plates specifically comprises:

the bottom plate, perpendicular backplate subassembly that sets up on the bottom plate surface, backplate subassembly is including first anodal side guard plate, first anodal front guard plate, second anodal side guard plate, second anodal front guard plate, first negative pole side guard plate and second negative pole side guard plate, backplate subassembly with the junction edge department of bottom plate is provided with the first cambered surface chamfer that is used for adapting to the electric container shell, the radian of backplate subassembly's internal surface is pi/8 pi/4.

As a preferred implementation mode of the six-guard-plate capacitor seat board provided by the utility model, the bottom plate is provided with the positive electrode lead-out wire jack and the negative electrode lead-out wire jack, and the bottom of the bottom plate is respectively provided with the positive electrode lead-out wire groove and the negative electrode lead-out wire groove which are matched with the positive electrode lead-out wire jack and the negative electrode lead-out wire jack.

As a preferred implementation mode of the six-guard-plate capacitor seat plate provided by the utility model, the bottom of the bottom plate is also provided with a positive electrode plate groove and a negative electrode plate groove, and the positive electrode plate groove and the negative electrode plate groove are respectively perpendicular to the positive electrode lead-out wire groove and the negative electrode lead-out wire groove.

In a preferred embodiment of the six-guard-plate capacitor seat plate provided by the utility model, the groove depth of the positive electrode lead groove and the groove depth of the negative electrode lead groove are larger than those of the positive electrode plate groove and the negative electrode plate groove.

As a preferred embodiment of the six-guard plate capacitor seat plate provided by the utility model, the guard plate assembly further comprises a first guard plate and a second guard plate, the first guard plate is arranged between the first positive electrode side guard plate and the first negative electrode side guard plate, the second guard plate is arranged between the second positive electrode side guard plate and the second negative electrode side guard plate, the first guard plate and the second guard plate are connected with the bottom plate, and heat dissipation round holes are formed in the first guard plate and the second guard plate.

As a preferable implementation mode of the six-guard plate capacitor seat plate provided by the utility model, the areas of the first guard plate and the second guard plate are 10% -80% of the sum of the areas of the first positive electrode side guard plate, the first positive electrode front guard plate, the second positive electrode side guard plate, the second positive electrode front guard plate, the first negative electrode side guard plate and the second negative electrode side guard plate, and the heights of the guard plate assemblies are greater than or equal to 50% of the height of the capacitor shell and less than 100% of the height of the capacitor shell.

The utility model provides a have three backplate capacitor plate, includes base, the positive plate of third, the negative plate front side backplate of third and the negative plate side backplate of fourth, the positive plate of third the negative plate front side backplate of third with the junction edge department of base is provided with the second cambered surface chamfer that is used for adapting to the capacitor case, the positive plate of third the positive plate front side backplate of third and the negative plate side backplate of fourth highly equals 60% of the height of capacitor case.

As a preferred implementation mode of the capacitor seat board with the three guard plates, the base is provided with the first round hole and the second round hole, and the bottom of the base is respectively provided with the first groove and the second groove which are matched with the first round hole and the second round hole.

As a preferred implementation mode of the capacitor seat board with the three guard plates, a third groove and a fourth groove are further formed in the bottom of the base, and the third groove and the fourth groove are perpendicular to the first groove and the second groove respectively.

In a preferred embodiment of the capacitor seat board with three guard plates provided by the utility model, a third baffle and a fourth baffle are respectively arranged between the third positive electrode front guard plate and the third negative electrode front guard plate and between the third positive electrode front guard plate and the fourth negative electrode side guard plate, and heat dissipation through holes are respectively arranged on the third baffle and the fourth baffle.

Compared with the prior art, the utility model has the following beneficial effects:

according to the capacitor seat board with six guard plates, the six guard plates are arranged in the bottom plate, the structure maximally improves the shock resistance of the capacitor, the contact area between the capacitor and the capacitor is increased, a stable guard plate assembly structure is formed, and the guard plate assembly is higher than the center height of the capacitor, so that the capacitor is integrally and stably arranged in the PCB, and therefore, the capacitor seat board has stronger shock resistance, the problem that the capacitor loosens or falls off is solved, the base of the shock-resistant capacitor is ensured to be firmly contacted with the PCB under the working conditions of high shock frequency and large shock amplitude, the falling phenomenon is not easy to occur, and the market demand is met.

According to the capacitor seat board with the three guard boards, the three guard boards are arranged in the base, the center points of the top views of the three guard boards are connected into the equilateral triangle, so that the stable guard boards are formed, the protection to the central axis of the capacitor is increased, the whole capacitor is stable by arranging the height of the guard boards to be higher than the central height of the capacitor, the gaps among the three guard boards are larger relative to the structure of more guard boards, the heat dissipation area is increased intangibly, and the heat resistance of the capacitor is improved.

Drawings

In order to more clearly illustrate the solution of the present utility model, a brief description will be given below of the drawings required for the description of the embodiments, it being obvious that the drawings in the following description are some embodiments of the present utility model, and that other drawings may be obtained from these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic view of a six-plate capacitor plate according to the present utility model;

FIG. 2 is a top view of FIG. 1;

FIG. 3 is another angular view of FIG. 1;

FIG. 4 is a schematic view of a three-plate capacitor plate according to the present utility model

Fig. 5 is another angular view of fig. 4.

The labels in the figures are illustrated below:

a base plate 1; a first positive electrode side guard plate 2; a first positive electrode front guard plate 3; a second positive electrode side guard plate 4; a second positive electrode front guard plate 5; a first negative electrode side guard plate 6; a second anode side guard plate 7; a first cambered surface chamfer 8; a positive electrode lead-out wire jack 9; a negative electrode lead-out wire jack 10; a positive electrode lead-out wire groove 11; a negative electrode lead-out groove 12; a positive electrode tab groove 13; a negative electrode tab slot 14; a first baffle 15; a second baffle 16; a heat dissipation round hole 17; a base 18; a third positive electrode front guard plate 19; a third anode front side guard plate 20; a fourth anode side guard plate 21; a second cambered surface 22; a first circular hole 23; a second circular hole 24; a first groove 25; a second groove 26; a third groove 27; a fourth groove 28; a third baffle 29; a fourth baffle 30; the heat dissipation through hole 31.

Detailed Description

In order that those skilled in the art will better understand the present utility model, a technical solution in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in which it is apparent that the described embodiments are only some embodiments of the present utility model, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the present utility model without making any inventive effort, shall fall within the scope of the present utility model.

As background technology, the existing guard plate has a certain protection effect, but the contact area with the capacitor is small, and particularly, under the working conditions of high vibration frequency and large vibration amplitude, firm contact between the capacitor and the PCB is difficult to ensure, the phenomenon of falling easily occurs, and the market demand cannot be met.

In order to solve the technical problem, the utility model provides a capacitor seat board with six guard plates.

Referring specifically to fig. 1-3, a capacitor plate with six guard plates specifically includes:

the electric container comprises a bottom plate 1 and a guard plate assembly vertically arranged on the surface of the bottom plate 1, wherein the guard plate assembly comprises a first positive electrode side guard plate 2, a first positive electrode front guard plate 3, a second positive electrode side guard plate 4, a second positive electrode front guard plate 5, a first negative electrode side guard plate 6 and a second negative electrode side guard plate 7, a first cambered surface chamfer 8 for adapting to the outer shell of the electric container is arranged at the connecting edge of the guard plate assembly and the bottom plate 1, and the radian of the inner surface of the guard plate assembly is pi/8 pi/4.

According to the capacitor seat board with six guard plates, the six guard plates are arranged in the bottom plate 1, the structure maximally improves the shock resistance of the capacitor, increases the contact area with the capacitor, forms a stable guard plate assembly structure, enables the capacitor to be integrally stable and stably arranged in the PCB by arranging the guard plate assembly to be higher than the center height of the capacitor, has stronger shock resistance, solves the problem that the capacitor loosens or falls off, ensures firm contact between the capacitor and the PCB under the working conditions of high shock frequency and large shock amplitude, and is not easy to fall off, thus meeting the market demands.

In order to make the person skilled in the art better understand the solution of the present utility model, the technical solution of the embodiment of the present utility model will be clearly and completely described below with reference to the accompanying drawings.

It should be noted that, under the condition of no conflict, the embodiments of the present utility model and the features and technical solutions in the embodiments may be combined with each other.

It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures.

Example 1

Referring to fig. 1-3, a capacitor seat board with six guard plates comprises a bottom plate 1 and guard plate assemblies vertically arranged on the surface of the bottom plate 1, wherein each guard plate assembly comprises a first positive electrode side guard plate 2, a first positive electrode front guard plate 3, a second positive electrode side guard plate 4, a second positive electrode front guard plate 5, a first negative electrode side guard plate 6 and a second negative electrode side guard plate 7, and the connecting edges of the guard plate assemblies and the bottom plate 1 are provided with first cambered surface chamfers 8 for adapting to the outer shell of the electric container, and the radian of the inner surfaces of the guard plate assemblies is pi/8 pi/4.

Through above-mentioned structural design, first anodal side guard plate 2, anodal front guard plate 3, anodal side guard plate 4 of second, anodal front guard plate 5 of second, first negative pole side guard plate 6 and six guard plates in 7 positions of second negative pole side guard plate for the lateral wall of protection and fixed condenser, on the basis of increasing with condenser lateral wall contact, guarantee shock resistance, make the firm fixing of condenser on the backplate subassembly, simultaneously, the heat radiating area of routing out each other for six guard plates, make heat radiating area increase, improve the heat resistance of condenser. This design is through setting up six backplate in bottom plate 1, the structure maximize promotes the shock resistance of condenser increase with the area of contact of condenser, form firm backplate subassembly structure, highly be higher than the condenser center through setting up backplate subassembly for the condenser is whole stable, can install in the PCB board more firmly, consequently possess stronger shock resistance, solve the problem that the condenser appears becoming flexible or drops, make anti-vibration capacitor base guarantee the firm contact of condenser and PCB under the operating mode condition that vibration frequency is high, vibration amplitude is big, be difficult for appearing the phenomenon that drops, satisfy the demand in market.

Specifically, the bottom plate 1 is provided with a positive electrode lead-out wire jack 9 and a negative electrode lead-out wire jack 10, and the bottom of the bottom plate 1 is provided with a positive electrode lead-out wire groove 11 and a negative electrode lead-out wire groove 12 respectively adapted to the positive electrode lead-out wire jack 9 and the negative electrode lead-out wire jack 10.

Through the above structural design, the positive electrode lead wire insertion hole 9 and the negative electrode lead wire insertion hole 10 are used for insertion of the lead wire anode lead wire of the capacitor, and the anode lead wire and the cathode lead wire are respectively bent along the bottom surface of the bottom plate 1 from the periphery of the positive electrode lead wire insertion hole 9 and the negative electrode lead wire insertion hole 10, and are configured along the positive electrode lead wire groove 11 and the negative electrode lead wire groove 12.

Specifically, the bottom of the bottom plate 1 is further provided with a positive electrode tab slot 13 and a negative electrode tab slot 14, and the positive electrode tab slot 13 and the negative electrode tab slot 14 are respectively perpendicular to the positive electrode lead-out wire groove 11 and the negative electrode lead-out wire groove 12.

Specifically, the groove depths of the positive electrode lead groove 11 and the negative electrode lead groove 12 are larger than those of the positive electrode tab groove 13 and the negative electrode tab groove 14.

Through the above-mentioned structural design, set up two electrode pieces at the lower surface of base bottom plate 1, two electrode pieces are used for fixed positive pole and negative pole lead-out wire of condenser respectively, realize the fixed of condenser base on the PCB through welding two electrode pieces to positive pole electrode piece groove 13 and negative pole electrode piece groove 14.

Example 2

Further optimizing the six-plate capacitor bank provided in embodiment 1, specifically, as shown in fig. 1-3, the guard plate assembly further comprises a first guard plate 15 and a second guard plate 16, the first guard plate 15 is disposed between the first positive side guard plate 2 and the first negative side guard plate 6, the second guard plate 16 is disposed between the second positive side guard plate 4 and the second negative side guard plate 7, the first guard plate 15 and the second guard plate 16 are all interconnected with the bottom plate 1, and the first guard plate 15 and the second guard plate 16 are all provided with heat dissipation round holes 17.

Specifically, the areas of the first baffle 15 and the second baffle 16 are 10% -80% of the sum of the areas of the first positive electrode side guard plate 2, the first positive electrode front guard plate 3, the second positive electrode side guard plate 4, the second positive electrode front guard plate 5, the first negative electrode side guard plate 6 and the second negative electrode side guard plate 7, and the heights of the guard plate assemblies are greater than or equal to 50% of the heights of the capacitor shells and less than 100% of the heights of the capacitor shells.

Through the above-mentioned structural design, the lateral wall of further fixed condenser of first baffle 15 and second baffle 16, simultaneously, its area is 10% -80% of the other backplate area, reduces original baffle area, makes its increase heat radiating area, improves the heat resistance of condenser, and heat radiating round hole 17 increase heat radiating area improves the heat resistance of condenser, and backplate subassembly highly is higher than condenser center height for condenser is whole stable.

Example 3

The capacitor seat plate with three guard plates comprises a base 18, a third positive electrode front guard plate 19, a third negative electrode front guard plate 20 and a fourth negative electrode side guard plate 21, wherein the connecting edges of the third positive electrode front guard plate 19, the third negative electrode front guard plate 20 and the fourth negative electrode side guard plate 21 and the base 18 are provided with second cambered surface 22 chamfers for adapting to a capacitor shell, and the heights of the third positive electrode front guard plate 19, the third negative electrode front guard plate 20 and the fourth negative electrode side guard plate 21 are equal to 60% of the height of the capacitor shell.

Through above-mentioned structural design, through setting up three backplate in base 18, the focus of the top view of three backplate is connected into equilateral triangle, forms firm guard plate, increases the protection to the condenser axis, through setting up guard plate height and being higher than condenser central point height for the condenser is whole stable, and three backplate can be bigger for the structure of more backplate, and the middle gap can be bigger, has increased heat radiating area in the intangible, improves the heat resistance of condenser.

Specifically, the base 18 is provided with a first round hole 23 and a second round hole 24, and the bottom of the base 18 is provided with a first groove 25 and a second groove 26 which are matched with the first round hole 23 and the second round hole 24 respectively.

Through the above structural design, the first round hole 23 and the second round hole 24 are used for inserting the anode lead of the lead wire of the capacitor, and the anode lead wire and the cathode lead wire are respectively bent along the base 18 from the periphery of the first round hole 23 and the second round hole 24 along the bottom surface of the base 1, and are configured along the first groove 25 and the second groove 26.

Specifically, the bottom of the base 18 is further provided with a third groove 27 and a fourth groove 28, and the third groove 27 and the fourth groove 28 are perpendicular to the first groove 25 and the second groove 26, respectively.

Specifically, a third baffle 29 and a fourth baffle 30 are provided between the third positive electrode front protective plate 19 and the third negative electrode front protective plate 20 and the fourth negative electrode side protective plate 21, respectively, and heat dissipation through holes 31 are provided in each of the third baffle 29 and the fourth baffle 30.

Through the above-mentioned structural design, set up two electrode slices at the lower surface of base 18, two electrode slices are used for fixed positive pole and negative pole lead-out wire of condenser respectively, realize the fixed of condenser base 18 on the PCB through welding two electrode slices to third recess 27 and fourth recess 28, and heat dissipation through-hole 31 increase heat dissipation area improves the heat resistance of condenser.

The use process of the capacitor seat board with six guard plates provided by the utility model is as follows:

the head of the capacitor is placed on the bottom plate 1, the guard plate components (six guard plates) are firmly contacted on the side walls of the capacitor, the height of the guard plate components is higher than the center height of the capacitor, the capacitor is integrally stable and can be more firmly installed in the PCB, so that the capacitor has stronger shock resistance, the problem that the capacitor loosens or falls off is solved, the shock-resistant capacitor base 18 ensures firm contact between the capacitor and the PCB under the working conditions of high shock frequency and large shock amplitude, the falling phenomenon is not easy to occur, and the market demand is met.

Through setting up three backplate in the base, the focus of the top view of three backplate is connected into equilateral triangle, forms firm guard plate, increases the protection to the condenser axis, through setting up guard plate height and being higher than condenser central point height for the condenser is whole stable, and three backplate can be bigger for the structure of more backplate, and the heat radiating area has been increased in the intangible middle gap, improves the heat resistance of condenser.

In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; may be mechanically connected, may be electrically connected or may be in communication with each other; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

It is apparent that the above-described embodiments are only some embodiments of the present utility model, but not all embodiments, and the preferred embodiments of the present utility model are shown in the drawings, which do not limit the scope of the patent claims. This utility model may be embodied in many different forms, but rather, embodiments are provided in order to provide a thorough and complete understanding of the present disclosure. Although the utility model has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing description, or equivalents may be substituted for elements thereof. All equivalent structures made by the content of the specification and the drawings of the utility model are directly or indirectly applied to other related technical fields, and are also within the scope of the utility model.

Claims (10)

1. The utility model provides a have six backplate capacitor seat boards, its characterized in that includes bottom plate (1), sets up perpendicularly backplate subassembly on bottom plate (1) surface, backplate subassembly is including first anodal side guard board (2), first anodal front guard board (3), second anodal side guard board (4), second anodal front guard board (5), first negative pole side guard board (6) and second negative pole side guard board (7), backplate subassembly with bottom plate (1) junction edge is provided with first cambered surface chamfer (8) that are used for adapting to the electric container shell, the radian of backplate subassembly's internal surface is pi/8 pi/4.

2. The capacitor seat plate with six guard plates according to claim 1, characterized in that the bottom plate (1) is provided with a positive electrode lead-out wire jack (9) and a negative electrode lead-out wire jack (10), and the bottom of the bottom plate (1) is provided with a positive electrode lead-out wire groove (11) and a negative electrode lead-out wire groove (12) which are matched with the positive electrode lead-out wire jack (9) and the negative electrode lead-out wire jack (10) respectively.

3. The capacitor seat plate with six guard plates according to claim 2, characterized in that the bottom of the bottom plate (1) is further provided with a positive electrode tab slot (13) and a negative electrode tab slot (14), the positive electrode tab slot (13) and the negative electrode tab slot (14) being mutually perpendicular to the positive electrode lead-out wire groove (11) and the negative electrode lead-out wire groove (12), respectively.

4. A capacitor seat plate with six guard plates according to claim 3, characterized in that the groove depth of the positive lead-out groove (11) and the negative lead-out groove (12) is larger than the positive electrode tab groove (13) and the negative electrode tab groove (14).

5. The capacitor plate with six guard plates according to claim 4, characterized in that the guard plate assembly further comprises a first guard plate (15) and a second guard plate (16), the first guard plate (15) is arranged between the first positive side guard plate (2) and the first negative side guard plate (6), the second guard plate (16) is arranged between the second positive side guard plate (4) and the second negative side guard plate (7), the first guard plate (15) and the second guard plate (16) are all interconnected with the bottom plate (1), and the first guard plate (15) and the second guard plate (16) are all provided with heat dissipation round holes (17).

6. The six-plate capacitor seat plate according to claim 5, wherein the areas of the first baffle (15) and the second baffle (16) are 10% -80% of the sum of the areas of the first positive electrode side plate (2), the first positive electrode front plate (3), the second positive electrode side plate (4), the second positive electrode front plate (5), the first negative electrode side plate (6) and the second negative electrode side plate (7), and the heights of the plate assemblies are greater than or equal to 50% of the heights of the capacitor shells and less than 100% of the heights of the capacitor shells.

7. The utility model provides a have three backplate capacitor plate, its characterized in that, including base (18), positive pole front guard plate (19), negative pole front side backplate (20) and fourth negative pole side backplate (21) with the junction edge department of base (18) is provided with second cambered surface (22) chamfer that is used for adapting to the electric container shell, positive pole front guard plate (19), negative pole front side backplate (20) and fourth negative pole side backplate (21) highly equal 60% of the height of capacitor shell.

8. The capacitor seat plate with three guard plates according to claim 7, characterized in that the base (18) is provided with a first round hole (23) and a second round hole (24), and the bottom of the base (18) is provided with a first groove (25) and a second groove (26) which are matched with the first round hole (23) and the second round hole (24) respectively.

9. The capacitor plate with three guard plates according to claim 8, characterized in that the bottom of the base (18) is further provided with a third recess (27) and a fourth recess (28), the third recess (27) and the fourth recess (28) being mutually perpendicular to the first recess (25) and the second recess (26), respectively.

10. The capacitor seat plate with three guard plates according to claim 9, characterized in that a third guard plate (29) and a fourth guard plate (30) are arranged between the third positive electrode front guard plate (19) and the third negative electrode front guard plate (20) and the fourth negative electrode side guard plate (21), respectively, and the third guard plate (29) and the fourth guard plate (30) are both provided with heat dissipation through holes (31).