Insulator and connector capable of achieving high withstand voltage value

Abstract

The present invention relates to the field of connector technology, and in particular to an insulator and a connector that can achieve a high withstand voltage value. An insulator that can achieve a high withstand voltage value includes a first insulator and a second insulator that are sleeved and connected; the side wall of the first insulator is provided with a plurality of mounting grooves; the first insulator is provided with a protruding first insulating protrusion at one end facing the second insulator; the side wall of the first insulator is formed with a recessed first insulating groove; the second insulator is formed with a mounting cavity, and the end of the first insulator is fitted with the bottom of the mounting cavity; the bottom of the mounting cavity is formed with a plurality of through holes for the end of the contact to extend out; the bottom of the mounting cavity is formed with a second insulating groove for the first insulating protrusion to extend into; the side wall of the mounting cavity is formed with a second insulating protrusion extending into the first insulating groove. The present invention can increase the electrical clearance and creepage distance between the contacts, so that the connector has the ability to withstand a high withstand voltage value and meets the withstand voltage index required by the product.

Description

Technical Field

[0001] The present invention relates to the technical field of connectors, and in particular to an insulator and a connector capable of achieving a high withstand voltage value. Background Art

[0002] The function of the connector is to build a bridge of communication between blocked or isolated circuits in the circuit, and to connect devices to each other, so that current and signals can be transmitted between devices. The connector includes a shell, an insulator fixedly assembled in the shell, and contacts assembled on the insulator. The function of the insulator is to arrange the contacts in the required position and spacing, and to ensure the insulation performance between the contacts and between the contacts and the shell.

[0003] Insufficient electrical clearance and creepage distance between contacts can easily affect the electrical insulation performance of the connector, making the connector's withstand voltage weak and easily causing failures in use. In order to improve the withstand voltage performance of the connector, existing connectors increase the creepage distance by increasing the size of the insulator, which results in a larger product size and cannot meet product usage requirements. In addition, the assembly of existing connectors is complex and cumbersome, and the assembly efficiency is low. Summary of the invention

[0004] In view of this, the purpose of the present application is to provide an insulator and a connector that can achieve a high withstand voltage value, so as to solve the problem that the withstand voltage capability of the existing connector is relatively weak.

[0005] A first aspect of the present invention provides an insulator capable of achieving a high withstand voltage value, comprising a first insulator and a second insulator connected in a sleeve manner;

[0006] The side wall of the first insulator is provided with a plurality of mounting grooves for mounting the contact piece; the first insulator is provided with a protruding first insulating protrusion at one end facing the second insulator;

[0007] The second insulator is formed with a mounting cavity for the first insulator to extend into, and the end of the first insulator is in contact with the bottom of the mounting cavity; the bottom of the mounting cavity is formed with a plurality of through holes penetrating through the main body of the second insulator, so that the end of the contact piece can extend out; the bottom of the mounting cavity is formed with a second insulating groove for the first insulating protrusion to extend into, and the second insulating groove is arranged around the outside of the through hole; the side wall of the mounting cavity is formed with a protruding second insulating protrusion, and the second insulating protrusion is arranged between two adjacent through holes;

[0008] A concave first insulating groove is formed on the side wall of the first insulator for the second insulating protrusion to extend into, and the first insulating groove is arranged between two adjacent mounting grooves.

[0009] Preferably, along the protruding direction of the second insulating protrusion, the end of the second insulating protrusion is in a pointed structure, and the first insulating groove is conformally matched to the second insulating protrusion.

[0010] Preferably, the first insulating protrusion is formed as a U-shaped structure, and a plurality of the first insulating protrusions are provided, and an opening of each of the U-shaped structures is arranged outward.

[0011] Preferably, the plurality of through holes include a grounding hole, and a recessed accommodating cavity is formed at the end of the mounting slot corresponding to the grounding hole for mounting a grounding spring;

[0012] The ends of the mounting slots corresponding to the remaining through holes except the grounding holes are all provided with the first insulating protrusions.

[0013] Preferably, a part of the groove wall of the mounting groove is formed with a protruding mounting portion, and the mounting portion is formed as a U-shaped structure with an opening, the contact piece abuts against the inner wall of the mounting portion, the opening is oriented in the same direction as the groove opening of the mounting groove, and the size of the opening is smaller than the inner diameter of the U-shaped structure.

[0014] Preferably, the side wall of one end of the first insulator away from the first insulating protrusion protrudes outward to form a positioning protrusion, and the top side wall of the mounting cavity is formed with a positioning groove for the positioning protrusion to extend into, and there are multiple positioning protrusions, each of which is arranged between two adjacent mounting grooves; the positioning grooves and the positioning protrusions are arranged in a one-to-one correspondence.

[0015] Preferably, the first insulating groove extends to the positioning protrusion along the axial direction of the first insulator; and the second insulating protrusion extends to the bottom of the positioning groove.

[0016] Preferably, the positioning protrusion is formed into a stepped structure, and the positioning protrusion of the stepped structure includes a first positioning portion and a second positioning portion; along the direction in which the positioning protrusion extends into the positioning groove, the first positioning portion is assembled at the notch of the positioning groove, and the second positioning portion is assembled at the groove bottom of the positioning groove;

[0017] One of the multiple positioning protrusions is formed as an anti-error protrusion, and the size of the first positioning portion in the anti-error protrusion is different from the size of the first positioning portion in the remaining positioning protrusions; the positioning groove corresponding to the anti-error protrusion is formed as an anti-error groove, and the slot size of the anti-error groove is different from the size of the remaining positioning grooves.

[0018] Preferably, a protruding disassembly portion is formed on an outer wall of the second positioning portion, and the disassembly portion can extend out of a side portion of the second insulator.

[0019] A second aspect of the present invention provides a connector, comprising an insulator capable of achieving a high withstand voltage value as described in any of the above technical solutions.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] An insulator capable of achieving a high withstand voltage value of the present invention is provided. A first insulator and a second insulator are sleeved and connected so that the insulator forms a split structure, and a plurality of groups of first insulating protrusions and second insulating grooves and first insulating grooves and second insulating protrusions that are matched and connected to each other are provided between the first insulator and the second insulator, so that the electrical clearance and creepage distance between contacts arranged in different installation grooves are increased, and the electrical insulation performance of the connector is improved without changing the volume of the insulator and the connector, so that the connector has the ability to withstand a high withstand voltage value and meets the withstand voltage index required by the product.

[0022] In order to make the above-mentioned objects, features and advantages of the present application more obvious and easy to understand, preferred embodiments are specifically cited below and described in detail with reference to the attached drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0024] Figure 1 A schematic structural diagram of a first insulator in an insulator capable of achieving a high withstand voltage value provided by an embodiment of the present invention;

[0025] Figure 2 A schematic structural diagram of a first insulator in an insulator capable of achieving a high withstand voltage value provided by an embodiment of the present invention from another perspective;

[0026] Figure 3 A schematic structural diagram of a second insulator in an insulator capable of achieving a high withstand voltage value provided by an embodiment of the present invention;

[0027] Figure 4 A schematic structural diagram of a second insulator in an insulator capable of achieving a high withstand voltage value provided by an embodiment of the present invention from another perspective;

[0028] Figure 5 A schematic structural diagram of a second insulator in an insulator capable of achieving a high withstand voltage value provided by an embodiment of the present invention from another perspective;

[0029] Figure 6A schematic structural diagram of a second insulator in an insulator capable of achieving a high withstand voltage value provided by an embodiment of the present invention from another perspective;

[0030] Figure 7 A schematic diagram of an assembly structure of an insulator capable of achieving a high withstand voltage value provided by an embodiment of the present invention;

[0031] Figure 8 A schematic structural diagram of a connector provided in an embodiment of the present invention.

[0032] Icon: 100-first insulator; 110-installing groove; 111-installing portion; 120-first insulating protrusion; 130-first insulating groove; 131-accommodating cavity; 140-positioning protrusion; 141-first positioning portion; 142-second positioning portion; 143-anti-mistake protrusion; 150-disassembly portion; 200-second insulator; 210-installing cavity; 220-through hole; 221-grounding hole; 230-second insulating groove; 240-second insulating protrusion; 250-positioning groove; 251-anti-mistake groove; 300-insulator; 400-contact piece. DETAILED DESCRIPTION

[0033] The following specific embodiments are provided to help the reader obtain a comprehensive understanding of the methods, devices and / or systems described herein. However, after understanding the disclosure of the present application, various changes, modifications and equivalents of the methods, devices and / or systems described herein will be apparent. For example, the order of operations described herein is merely an example, and is not limited to the order set forth herein, but in addition to the operations that must occur in a particular order, changes that will be apparent after understanding the disclosure of the present application may be made. In addition, in order to improve clarity and brevity, descriptions of features known in the art may be omitted.

[0034] The features described herein may be implemented in different forms and should not be interpreted as being limited to the examples described herein. Rather, the examples described herein have been provided only to illustrate some of the many possible ways of implementing the methods, devices and / or systems described herein that will be apparent after understanding the disclosure of the present application.

[0035] Throughout the specification, when an element (such as a layer, a region, or a substrate) is described as being “on”, “connected to”, “bound to”, “over”, or “covering” another element, it may be directly “on”, “connected to”, “bound to”, “over”, or “covering” another element, or one or more other elements may be present between them. In contrast, when an element is described as being “directly on”, “directly connected to”, “directly bound to”, “directly over”, or “directly covering” another element, there may be no other elements present between them.

[0036] As used herein, the term "and / or" includes any one of the associated listed items and any combination of any two or more items.

[0037] Although terms such as "first," "second," and "secondary" may be used herein to describe various members, components, regions, layers, or portions, these members, components, regions, layers, or portions are not limited by these terms. Rather, these terms are only used to distinguish one member, component, region, layer, or portion from another member, component, region, layer, or portion. Therefore, without departing from the teachings of the examples described herein, the first member, component, region, layer, or portion referred to may also be referred to as the second member, component, region, layer, or portion.

[0038] For ease of description, spatial relational terms such as "above", "upper", "below", and "lower" may be used herein to describe the relationship of one element to another element as shown in the accompanying drawings. Such spatial relational terms are intended to include different orientations of the device in use or operation in addition to the orientation depicted in the accompanying drawings. For example, if the device in the accompanying drawings is turned over, an element described as being "above" or "upper" relative to another element will subsequently be "below" or "lower" relative to the other element. Therefore, the term "above" includes both "above" and "below" orientations depending on the spatial orientation of the device. The device may also be positioned in other ways (e.g., rotated 90 degrees or in other orientations), and the spatial relational terms used herein will be interpreted accordingly.

[0039] The terms used herein are only used to describe various examples and are not used to limit the present disclosure. Unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. The terms "include", "comprise" and "have" list the stated features, quantities, operations, components, elements and / or their combinations that exist, but do not exclude the existence or addition of one or more other features, quantities, operations, components, elements and / or their combinations.

[0040] Variations in the shapes shown in the drawings may occur due to manufacturing techniques and / or tolerances. Therefore, the examples described herein are not limited to the specific shapes shown in the drawings but include variations in shapes that occur during manufacturing.

[0041] The features of the examples described herein may be combined in various ways that will be apparent after understanding the disclosure of the present application. In addition, although the examples described herein have various configurations, other configurations are possible as will be apparent after understanding the disclosure of the present application.

[0042] According to a first aspect of the present invention, there is provided an insulator capable of achieving a high withstand voltage value, which includes a first insulator 100 and a second insulator 200 .

[0043] Hereinafter, a specific structure of the above-mentioned components of an insulator that can achieve a high withstand voltage value according to the present embodiment will be described.

[0044] In this embodiment, if Figures 1 to 7 As shown, the first insulator 100 and the second insulator 200 are sleeved and connected to each other; in this embodiment, the first insulator 100 is formed as a cylindrical structure, and the second insulator 200 is formed as a cylindrical sleeve structure that can be sleeved on the circumferential side wall of the first insulator 100.

[0045] Specifically, the second insulator 200 is formed with an installation cavity 210 for at least part of the first insulator 100 to extend into, the end of the first insulator 100 is fitted with the bottom of the installation cavity 210, and the side wall of the first insulator 100 is fitted with the side wall of the installation cavity 210, so that the second insulator 200 is surrounded by the outer wall of the first insulator 100, and the contact piece is arranged between the first insulator 100 and the second insulator 200 to complete the assembly, thereby improving the assembly efficiency between the insulator and the contact piece.

[0046] More specifically, in this embodiment, if Figure 1 and Figure 2As shown, the side wall of the first insulator 100 is provided with a plurality of mounting grooves 110, and the mounting grooves 110 are used to install the contact piece. The mounting grooves 110 penetrate the main body of the first insulator 100 along the axial extension direction of the first insulator 100, so that the mounting grooves 110 are formed into a strip structure to surround part of the side wall of the contact piece, thereby ensuring the insulation effect.

[0047] In this embodiment, the first insulator 100 and the second insulator 200 are made of a flexible and insulating plastic material, and the first insulator 100 and the second insulator 200 can be made by an injection molding process.

[0048] In a preferred embodiment, Figure 1 and Figure 2 As shown, a portion of the groove wall of the mounting groove 110 is formed with a protruding mounting portion 111, and the mounting portion 111 is formed into a U-shaped structure with an opening, and the contact piece can abut against the inner wall of the mounting portion 111. The opening is in the same direction as the groove opening of the mounting groove 110, and the size of the opening is smaller than the inner diameter size of the U-shaped structure, so that the opening position of the U-shaped structure of the mounting portion 111 is formed into a shrinkage structure. In this way, when assembling the contact piece, the opening is squeezed and deformed so that the contact piece can enter the mounting portion 111. After the contact piece enters and is installed, the deformed opening rebounds to its original shape to prevent the contact piece from falling off the mounting portion 111, ensuring that the contact piece abuts against the inner wall of the mounting portion 111, so that the contact piece is reliably fixed in the mounting groove 110, thereby improving the assembly reliability of the contact piece and the first insulator 100, and the method of squeezing the opening to deform to disassemble and assemble the contact piece is simple, convenient, time-saving and labor-saving.

[0049] In addition, in this embodiment, Figure 1 and Figure 2 As shown, the bottom of the mounting cavity 210 is formed with a plurality of through holes 220 penetrating the main body of the second insulator 200 for the ends of the contact pieces to extend out, and the plurality of through holes 220 are arranged at intervals around the axial direction of the second insulator 200; the through holes 220 can be formed into a circular structure or the like, as long as the contact pieces can extend out.

[0050] It should be noted that, in this embodiment, Figure 6 As shown, a wiring mark is provided on the side of the through hole 220 facing away from the first insulator 100, so that it is convenient for the staff to perform wiring operations according to the design drawing and avoid wiring confusion. The wiring mark can be a number or other symbol, and the grounding wiring mark can be "PE".

[0051] In this embodiment, if Figures 1 to 7As shown, a protruding first insulating protrusion 120 is provided at one end of the first insulator 100 facing the second insulator 200 (i.e., an end of the first insulator 100 that can fit with the bottom of the mounting cavity 210), and a second insulating groove 230 is formed at the bottom of the mounting cavity 210 for the first insulating protrusion 120 to extend into. The second insulating groove 230 is arranged around the outer side of the through hole 220, and the shape of the second insulating groove 230 is conformally adapted to the shape of the first insulating protrusion 120, so that the electrical clearance and creepage distance between the contacts arranged in different mounting grooves 110 are increased, and the electrical insulation performance of the connector is improved without changing the volume of the insulator and the connector, so that the connector has a high withstand voltage value and meets the withstand voltage index required by the product.

[0052] Specifically, in this embodiment, Figure 1 and Figure 2 As shown, the first insulating protrusion 120 is formed into a U-shaped structure, and a plurality of first insulating protrusions 120 are provided, and the opening of each U-shaped structure is arranged outward, so that the first insulating protrusion 120 can wrap around the contact to effectively increase the creepage distance and electrical clearance between the contacts.

[0053] In order to further improve the electrical clearance and creepage distance between the contacts, in this embodiment, Figures 1 to 7 As shown, a protruding second insulating protrusion 240 is formed on the side wall of the mounting cavity 210, and a plurality of second insulating protrusions 240 are provided, each of which is provided between two adjacent through holes 220; a recessed first insulating groove 130 is formed on the side wall of the first insulator 100 for the second insulating protrusion 240 to extend into, and the shapes of the first insulating groove 130 and the second insulating protrusion 240 are conformally adapted and correspond one to one, thereby avoiding a circumferential gap between the first insulator 100 and the second insulator 200 after assembly, and the first insulating groove 130 is provided between two adjacent mounting grooves 110, thereby further increasing the electrical gap between the contact pieces so that it can meet the withstand voltage index of 3310V.

[0054] In a preferred embodiment, Figures 3 to 5 As shown, along the protruding direction of the second insulating protrusion 240, the end of the second insulating protrusion 240 is a pointed structure, and the bottom of the first insulating groove 130 is correspondingly formed into a cone, so as to ensure that there is no gap in the circumferential direction between the first insulator 100 and the second insulator 200 after assembly, thereby ensuring the high withstand voltage performance of the insulator. In addition, the pointed end structure of the second insulating protrusion 240 can further increase the electrical gap between the contact pieces.

[0055] In this embodiment, if Figures 1 to 6As shown, the multiple through holes 220 include a grounding hole 221, and the end of the installation slot 110 corresponding to the grounding hole 221 is formed with a recessed accommodating cavity 131 for installing a grounding spring; the ends of the installation slots 110 corresponding to the remaining through holes 220 except the grounding hole 221 are all provided with a first insulating protrusion 120.

[0056] In this embodiment, four through holes 220 are provided, one of which is a grounding hole 221, and the outer sides of the other three are provided with second insulating grooves 230, and four mounting grooves 110 are also provided accordingly, one of which is provided with a accommodating cavity 131 at the end, and the other three are provided with first insulating protrusions 120 at the ends.

[0057] In addition, in this embodiment, Figures 1 to 7 As shown, the side wall of the first insulator 100 away from the first insulating protrusion 120 protrudes outward to form a positioning protrusion 140, and the positioning protrusion 140 is formed as a convex block structure arranged at the end of the first insulator 100. The top side wall of the installation cavity 210 is formed with a positioning groove 250 for the positioning protrusion 140 to extend into. There are multiple positioning protrusions 140, and each positioning protrusion 140 is arranged between two adjacent installation grooves 110; the positioning grooves 250 are arranged one by one with the positioning protrusions 140, so as to ensure that the complex structure can be accurately installed. In a preferred embodiment, the first insulator 100 and the second insulator 200 are connected by interference fit to ensure that the first insulator 100 will not fall out easily.

[0058] In addition, in this embodiment, Figures 1 to 5 As shown, the first insulating groove 130 and the second insulating protrusion 240 are both formed into a strip structure, one end of the first insulating groove 130 in the length direction extends to the positioning protrusion 140 along the axial direction of the first insulator 100, and the other end extends to the end surface of the first insulator 100 that can abut against the bottom of the mounting cavity 210; one end of the second insulating protrusion 240 in the length direction extends to the bottom of the positioning groove 250, and the other end extends to the bottom of the mounting cavity 210, thereby ensuring that the electrical clearance and creepage distance between the contacts are effectively increased, so that a high withstand voltage value can be achieved.

[0059] Furthermore, in this embodiment, if Figures 1 to 5As shown, the positioning protrusion 140 is formed into a stepped structure. Specifically, the positioning protrusion 140 of the stepped structure includes a first positioning portion 141 and a second positioning portion 142. Along the direction in which the positioning protrusion 140 extends into the positioning groove 250, the first positioning portion 141 is assembled in the notch of the positioning groove 250, and the second positioning portion 142 is assembled in the groove bottom of the positioning groove 250, so that when the first insulator 100 and the second insulator 200 are assembled, the second positioning portion 142 first extends into the positioning groove 250. In this embodiment, the first positioning portion 141 and the second positioning portion 142 are both formed into a rectangular block structure, and the size of the first positioning portion 141 is larger than the size of the second positioning portion 142; as shown in FIG. Figure 7 As shown, at least a portion of the first positioning portion 141 extends out of the mounting cavity 210 .

[0060] In a preferred embodiment, Figure 2 As shown, one of the plurality of positioning protrusions 140 is formed as an anti-mistake protrusion 143, and the size of the first positioning portion 141 in the anti-mistake protrusion 143 is different from the size of the first positioning portion 141 in the remaining positioning protrusions 140, so that the anti-mistake protrusion 143 is clearly distinguished from the other positioning protrusions 140, so that an insulator that can achieve a high withstand voltage value has a unique and correct assembly direction, thereby achieving anti-mistake installation; similarly, Figure 4 As shown, the positioning groove 250 corresponding to the anti-error protrusion 143 is formed as an anti-error groove 251, and the slot size of the anti-error groove 251 is different from the size of the remaining positioning grooves 250 except the anti-error groove 251, so that the anti-error groove 251 is conformally adapted to the anti-error protrusion 143.

[0061] In this embodiment, the width of the anti-error protrusion 143 is greater than the width of the other positioning protrusions 140, so that the structure of the anti-error protrusion 143 is prominent, obvious, and easy to distinguish.

[0062] In addition, in this embodiment, Figure 1 , Figure 2 and Figure 7 As shown, the outer wall of the second positioning portion 142 is formed with a protruding disassembly portion 150, which can extend out of the side of the second insulator 200. The disassembly portion 150 is formed as a convex block structure, which can facilitate the separation of the first insulator 100 and the second insulator 200 after interference fitting, and is convenient for removal.

[0063] An insulator capable of achieving a high withstand voltage value according to the present invention has low manufacturing cost, is easy to assemble, and is reliable to use. By providing a first insulator and a second insulator that are sleeved and connected to each other, the insulator is formed into a split structure, and a plurality of groups of first insulating protrusions and second insulating grooves and first insulating grooves and second insulating protrusions that are matched and connected to each other are provided between the first insulator and the second insulator, so that the electrical clearance and creepage distance between contacts arranged in different installation grooves are increased, and the electrical insulation performance of the connector is improved without changing the volume of the insulator and the connector, so that the connector has the ability to withstand a high withstand voltage value and meets the withstand voltage index required by the product.

[0064] A second aspect of the present invention provides a connector, using an insulator capable of achieving a high withstand voltage value as described in the above embodiment, such as Figure 8 As shown, the contact 400 is mounted on the insulator 300, and the electrical clearance and creepage distance between the contacts 400 are increased, thereby improving the electrical insulation performance of the connector without changing the volume of the insulator and the connector, so that the connector has a high withstand voltage value and meets the withstand voltage index required by the product.

[0065] Finally, it should be noted that the above-described embodiments are only specific implementation methods of the present application, which are used to illustrate the technical solutions of the present application, rather than to limit them. The protection scope of the present application is not limited thereto. Although the present application is described in detail with reference to the above-described embodiments, ordinary technicians in the field should understand that any technician familiar with the technical field can still modify the technical solutions recorded in the above-described embodiments within the technical scope disclosed in the present application, or can easily think of changes, or make equivalent replacements for some of the technical features therein; and these modifications, changes or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application, and should be included in the protection scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims

1. An insulator capable of achieving a high withstand voltage value, characterized in that: It includes a first insulator and a second insulator which are sleeve-connected; The side wall of the first insulator is provided with a plurality of mounting grooves for mounting the contact piece; the first insulator is provided with a protruding first insulating protrusion at one end facing the second insulator; The second insulator is formed with a mounting cavity for the first insulator to extend into, and the end of the first insulator is in contact with the bottom of the mounting cavity; the bottom of the mounting cavity is formed with a plurality of through holes penetrating through the main body of the second insulator, so that the end of the contact piece can extend out; the bottom of the mounting cavity is formed with a second insulating groove for the first insulating protrusion to extend into, and the second insulating groove is arranged around the outside of the through hole; the side wall of the mounting cavity is formed with a protruding second insulating protrusion, and the second insulating protrusion is arranged between two adjacent through holes; A recessed first insulating groove is formed on the side wall of the first insulator for the second insulating protrusion to extend into, and the first insulating groove is arranged between two adjacent mounting grooves; the side wall of the first insulator at one end away from the first insulating protrusion protrudes outward to form a positioning protrusion, and a positioning groove is formed on the top side wall of the mounting cavity for the positioning protrusion to extend into, and a plurality of positioning protrusions are arranged, each of which is arranged between two adjacent mounting grooves; the positioning grooves and the positioning protrusions are arranged in a one-to-one correspondence.

2. An insulator capable of achieving a high withstand voltage value according to claim 1, characterized in that: Along the protruding direction of the second insulating protrusion, the end of the second insulating protrusion is in a pointed structure, and the first insulating groove is conformally matched to the second insulating protrusion.

3. An insulator capable of achieving a high withstand voltage value according to claim 1, characterized in that: The first insulating protrusion is formed into a U-shaped structure, and a plurality of the first insulating protrusions are provided, and an opening of each of the U-shaped structures is arranged outward.

4. The insulator capable of achieving a high withstand voltage value according to claim 1, characterized in that: The plurality of through holes include a grounding hole, and a recessed accommodating cavity is formed at the end of the mounting slot corresponding to the grounding hole for mounting a grounding spring; The ends of the mounting slots corresponding to the remaining through holes except the grounding holes are all provided with the first insulating protrusions.

5. The insulator capable of achieving a high withstand voltage value according to claim 1, characterized in that: A protruding mounting portion is formed on a portion of the groove wall of the mounting groove, and the mounting portion is formed as a U-shaped structure with an opening. The contact piece abuts against the inner wall of the mounting portion, and the opening is oriented in the same direction as the groove of the mounting groove, and the size of the opening is smaller than the inner diameter of the U-shaped structure.

6. The insulator capable of achieving a high withstand voltage value according to claim 1, characterized in that: The first insulating groove extends to the positioning protrusion along the axial direction of the first insulator; and the second insulating protrusion extends to the bottom of the positioning groove.

7. The insulator capable of achieving a high withstand voltage value according to claim 1, characterized in that: The positioning protrusion is formed into a stepped structure, and the positioning protrusion of the stepped structure includes a first positioning portion and a second positioning portion; along the direction in which the positioning protrusion extends into the positioning groove, the first positioning portion is assembled at the notch of the positioning groove, and the second positioning portion is assembled at the groove bottom of the positioning groove; One of the multiple positioning protrusions is formed as an anti-error protrusion, and the size of the first positioning portion in the anti-error protrusion is different from the size of the first positioning portion in the remaining positioning protrusions; the positioning groove corresponding to the anti-error protrusion is formed as an anti-error groove, and the slot size of the anti-error groove is different from the size of the remaining positioning grooves.

8. An insulator capable of achieving a high withstand voltage value according to claim 7, characterized in that: A protruding disassembly portion is formed on an outer wall of the second positioning portion, and the disassembly portion can extend out of a side portion of the second insulator.

9. A connector, characterized in that: An insulator capable of achieving a high withstand voltage value as described in any one of claims 1 to 8.

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