High-voltage terminal structure and casing with high-voltage terminal structure

Abstract

The invention relates to a high-voltage terminal structure and a casing with the high-voltage terminal structure. The high-voltage terminal structure is used for being arranged on a casing body with a surface side and an inner side. The high-voltage terminal structure comprises a first insulating part, a second insulating part and a conductive part. The first insulating part penetrates through the casing body and is provided with a through hole. The second insulating part is arranged on the casing body and located on the inner side, and the second insulating part and the first insulating part are arranged at an interval; the second insulating part is provided with an inner cylinder, a channel, an outer cylinder and a connecting part. The inner cylinder is provided with two opposite end parts; a channel penetrates through and is communicated with the two opposite end parts of the inner cylinder; the outer cylinder sleeves the inner cylinder and is arranged at an interval; and the connecting part is connected between the inner cylinder and the outer cylinder. And the conductive piece is fixed at the other end part, far away from the first insulating piece, of the inner cylinder. Therefore, a long crawling distance and a space linear distance can be obtained in a limited space.

Description

Technical Field

[0001] The present invention relates to a terminal structure for electrical connection, and in particular to a terminal structure for connecting high voltage electricity. Background Art

[0002] In the field of electrical safety, there are two safety reference distances between the insulator position that the human body touches and the charged body, depending on the insulation medium, namely the clearance distance and the creepage distance. The clearance distance refers to the distance between the insulator position that the human body touches and the charged body that can be insulated by air. When this distance is insufficient, the electricity on the charged body may break down and cause electric shock to the human body. In addition, the creepage distance refers to the shortest distance between the insulator position that the human body touches and the charged body along the surface of the insulator, because the surface of the insulator around the charged body may be polarized, making the insulator charged. If the human body touches the insulator within this range, it is still possible to suffer an electric shock. In addition, when the voltage of the charged body is higher, the clearance distance and the creepage distance must be longer to prevent the human body from being shocked.

[0003] However, the existing high-voltage terminal structure usually consists of only a slot made of insulating material and a charged body connected to the deep part of the slot. Since the high-voltage terminal structure is small and the space for setting is limited, there is a risk of electric shock when the straight-line distance or crawling distance between the position outside the slot where the human body may touch and the charged body is insufficient. Therefore, it can be seen that the existing high-voltage terminal structure does need to be improved. Summary of the invention

[0004] The main purpose of the present invention is to provide a high-voltage terminal structure, which can obtain a longer creeping distance and spatial straight-line distance between the conductive part and the part in contact with the human body in a limited space, thereby preventing the user from being electrocuted.

[0005] To achieve the above-mentioned purpose, the present invention proposes a high-voltage terminal structure, which is used to be arranged on a casing body, the casing body has a front side and an inner side, and the front side and the inner side are located on opposite sides of the casing body; the high-voltage terminal structure includes a first insulating member, which is arranged through the casing body, and the first insulating member has: a through hole, which passes through the two opposite side surfaces of the first insulating member, thereby connecting the front side and the inner side of the casing body; a second insulating member, which is arranged on the casing body and is located on the inner side of the casing body , the second insulating member is spaced apart from the first insulating member; the second insulating member comprises: an inner cylinder having two opposite ends, one of which faces the first insulating member; a channel penetrating through and communicating with the two opposite ends of the inner cylinder; an outer cylinder sleeved on the inner cylinder and spaced apart from the inner cylinder; a connecting portion sealingly connected between the outer circumferential surface of the inner cylinder and the inner circumferential surface of the outer cylinder; and a conductive member penetrating and fixed to the other end of the inner cylinder facing away from the first insulating member.

[0006] In addition, to achieve the above-mentioned purpose, the present invention further proposes a casing with a high-voltage terminal structure, which includes: a casing body, which has a front side and an inner side, and the front side and the inner side are located on opposite sides of the casing body; and a high-voltage terminal structure, which includes: a first insulating member, which is arranged through the casing body, and the first insulating member has: a through hole, which passes through the two opposite side surfaces of the first insulating member, thereby connecting the front side and the inner side of the casing body; a second insulating member, which is arranged on the casing body and is located on the casing body On the inner side of the housing, the second insulating member is spaced apart from the first insulating member; the second insulating member comprises: an inner cylinder having two opposite ends, one of which faces the first insulating member; a channel penetrating through and communicating with the two opposite ends of the inner cylinder; an outer cylinder sleeved on the inner cylinder and spaced apart from the inner cylinder; a connecting portion sealingly connected between the outer circumferential surface of the inner cylinder and the inner circumferential surface of the outer cylinder; and a conductive member penetrating and fixed to the other end of the inner cylinder facing away from the first insulating member.

[0007] Therefore, the advantage of the present invention lies in that, through the second insulating member separated from the first insulating member, the high-voltage terminal structure of the present invention can increase the creeping distance and spatial straight-line distance between the casing body and the conductive member in a limited space; and by arranging an outer cylinder outside the inner cylinder, the surface area of ​​the second insulating member is increased, and the creeping distance between the conductive member and the casing body is further increased, thereby ensuring that there is a sufficient creeping distance between the conductive member and the human body, reducing the risk of the human body being subjected to high-voltage electric shock.

[0008] The high voltage terminal structure as mentioned above further comprises a fixing ring which surrounds and is connected to the second insulating member, and the fixing ring is connected to the housing body, thereby the second insulating member is fixed to the housing body.

[0009] As described above for the high-voltage terminal structure, the connecting portion is located at an end of the outer cylinder close to the first insulating member.

[0010] As described above in the high-voltage terminal structure, the first insulating member also has an inner side surface, which is located on the inner side of the casing body and faces the direction away from the outer side of the casing body; and an end surface of the inner tube facing the end of the first insulating member has a spacing distance from the inner side surface.

[0011] As in the aforementioned high-voltage terminal structure, the channel is formed with an insertion opening on the end surface, and the insertion opening is directly opposite to the through hole of the first insulating member.

[0012] The casing with a high-voltage terminal structure as described above also has a connecting piece, which is connected to the side of the casing body facing the inner side, and the connecting piece is a plate and has a groove, and the groove is recessed in the direction away from the casing body; the second insulating piece of the high-voltage terminal structure is fixed to the connecting piece, and there is a spacing distance between the position where the second insulating piece is fixed to the groove and the casing body.

[0013] As described above, the housing with a high-voltage terminal structure is provided through the connecting member, and the high-voltage terminal structure also has a fixing ring which surrounds and is connected to the second insulating member, and the fixing ring is connected to the connecting member. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 The figure is a schematic diagram of the appearance of the present invention from the inner side of the casing body.

[0015] Figure 2 The figure is a schematic diagram of the appearance of the present invention from the front side of the casing body.

[0016] Figure 3 It is a schematic diagram of an exploded view of a housing with a high voltage terminal structure according to the present invention.

[0017] Figure 4 It is a side cross-sectional schematic diagram of a casing with a high voltage terminal structure according to the present invention.

[0018] Figure 5 It is a schematic diagram of the appearance of the high voltage terminal structure of the present invention.

[0019] Figure 6 It is a schematic diagram of the exploded view of the high voltage terminal structure of the present invention.

[0020] Figure 7 It is a schematic diagram of an exploded view of the high voltage terminal structure of the present invention from another perspective.

[0021] Figure 8 It is a side cross-sectional schematic diagram of the high voltage terminal structure of the present invention.

[0022] Description of reference numerals:

[0023] 10. Housing

[0024] 11. Side

[0025] 12. Inside

[0026] 13. Connectors

[0027] 131. Groove

[0028] 132. Open your mouth

[0029] 20. High voltage terminal structure

[0030] 21. First insulating member

[0031] 211. Outer side

[0032] 212, inner side

[0033] 213. Perforation

[0034] 214. Fixed part

[0035] 22. Second insulating member

[0036] 221, Inner Cylinder

[0037] 2211, Insertion port

[0038] 222, Channel

[0039] 223. Outer cylinder

[0040] 224. Connection

[0041] 23. Fixed ring

[0042] 24. Conductive parts. DETAILED DESCRIPTION

[0043] The following further describes the technical means adopted by the present invention to achieve the predetermined purpose of the invention in conjunction with the accompanying drawings and preferred embodiments of the present invention.

[0044] First, please refer to Figures 1 to 4 The present invention provides a housing with a high-voltage terminal structure, which includes a housing body 10 and a high-voltage terminal structure 20. The high-voltage terminal structure 20 is used for a user to insert a connector.

[0045] The housing body 10 has a front side 11 and an inner side 12, and the front side 11 and the inner side 12 are respectively located on opposite sides of the housing body 10; the present invention may also include a connecting member 13, which is connected to a side of the housing body 10 facing the inner side 12. Specifically, the connecting member 13 is a plate and has a groove 131, and the groove 131 is recessed in a direction away from the housing body 10, and an opening 132 is formed at the bottom of the groove 131, so that there is a spacing distance between the opening 132 and the side of the housing body 10 facing the inner side 12, but the present invention is not limited thereto. In other embodiments, the housing body 10 may not include the connecting member 13.

[0046] Please refer to Figure 2 , Figure 3 ,and Figures 5 to 7 The high voltage terminal structure 20 is disposed on the housing body 10, and includes a first insulating member 21, a second insulating member 22, a fixing ring 23, and a conductive member 24. The first insulating member 21 and the second insulating member 22 are preferably made of a material with a Comparative Tracking Index (CTI) of 600V, but not limited thereto.

[0047] The first insulating member 21 is disposed through the housing body 10, and has an outer side surface 211 and an inner side surface 212 on opposite sides, respectively. The outer side surface 211 and the inner side surface 212 face opposite directions respectively; wherein the outer side surface 211 is located at the front side 11 of the housing body 10, and the inner side surface 212 is located at the inner side 12 of the housing body 10; specifically, the outer side surface 211 faces a direction away from the inner side 12, and the inner side surface 212 faces a direction away from the front side 11. A through hole 213 is formed through the outer side surface 211 and the inner side surface 212 of the first insulating member 21, and thus the through hole 213 communicates with the front side 11 and the inner side 12 of the housing body 10.

[0048] In addition, if Figure 2 and Figure 7 As shown in , in this embodiment, the first insulating member 21 can also have a fixing portion 214, which is connected to the outer side surface 211, thereby fixing the relative position between the user's connector and the first insulating member 21; specifically, the fixing portion 214 is formed protruding from the outer side surface 211 and has an internal thread, thereby being able to be screwed with the user's connector. However, this is not limited to this, for example, the fixing portion 214 may not have a thread, but may have a snap-fitting groove, or the first insulating member 21 may not have a fixing portion 214.

[0049] Please refer to Figure 1 , Figure 3 ,and Figure 4The second insulating member 22 is disposed on the housing body 10 and is located on the inner side 12 of the housing body 10. In this embodiment, the second insulating member 22 is fixed to the connecting member 13 of the housing body 10 and is passed through the opening 132 of the connecting member 13, but the present invention is not limited thereto. Figure 4 As shown, the second insulating member 22 is spaced apart from the first insulating member 21 . In other words, the second insulating member 22 and the first insulating member 21 are not in direct contact with each other.

[0050] Please refer to Figures 5 to 8 , the second insulating member 22 has an inner tube 221, a channel 222, an outer tube 223, and a connecting portion 224. The inner tube 221 has two opposite ends, one of which faces the first insulating member 21, and the other faces the direction away from the first insulating member 21. The end of the inner tube 221 facing the first insulating member 21 has an end face, and there is a spacing distance between the end face and the inner side surface 212 of the first insulating member 21. In this embodiment, the spacing distance is preferably 1 mm, but not limited to this; in other embodiments, the spacing distance may not be equal to 1 mm. The channel 222 penetrates and communicates with the opposite ends of the inner tube 221, and the channel 222 forms an insertion port 2211 on the end face of the end of the inner tube 221 facing the first insulating member 21, and the insertion port 2211 is opposite to the through hole 213 of the first insulating member 21, thereby facilitating the user to insert the connector.

[0051] The outer cylinder 223 is sleeved on the inner cylinder 221 and is spaced apart from the inner cylinder 221. Specifically, the connecting portion 224 is sealed and connected between the outer circumference of the inner cylinder 221 and the inner circumference of the outer cylinder 223, close to one end of the first insulating member 21, so that there is a spacing distance between the inner circumference of the outer cylinder 223 and the outer circumference of the inner cylinder 221. In other words, the outer cylinder 223 extends in a direction away from the first insulating member 21 relative to the connecting portion 224, and there is a spacing between the extended portion of the outer cylinder 223 and the inner cylinder 221 without contacting each other.

[0052] The fixing ring 23 surrounds and is connected to the second insulating member 22, and is connected to the housing body 10. In this embodiment, the second insulating member 22 is inserted through the opening 132 of the connecting member 13, and the fixing ring 23 is fixed around the opening 132 of the connecting member 13, so that the second insulating member 22 can be fixed to the housing body 10. In this embodiment, because the first insulating member 21 is disposed on the housing body 10, and the second insulating member 22 is disposed on the connecting member 13, there is a spacing distance between the opening 132 of the connecting member 13 and the side of the housing body 10 facing the inner side 12, so that the first insulating member 21 and the second insulating member 22 will not directly contact each other.

[0053] The conductive member 24 is passed through and fixed to the end of the inner tube 221 away from the first insulating member 21 , so that the user can contact the conductive member 24 when inserting the connector.

[0054] The high-voltage terminal structure 20 of the present invention ensures that the conductive member 24 has a sufficient creeping distance from the human body by setting the first insulating member 21 and the second insulating member 22 at intervals, thereby reducing the risk of electric shock. In addition, the second insulating member 22 is sleeved on the inner cylinder 221 by the outer cylinder 223, and the outer cylinder 223 is extended away from the first insulating member 21, so as to further increase the creeping distance between the conductive member 24 along the surface of the second insulating member 22 and the connecting member 13; and, by sleeved on the inner cylinder 221 by the outer cylinder 223, the creeping distance between the conductive member 24 and the connecting member 13 can be increased in a limited space without occupying too much space on the inner side 12 of the housing body 10.

[0055] The above is only a preferred embodiment of the present invention, and does not limit the present invention in any form. Although the present invention has been disclosed as a preferred embodiment as above, it is not used to limit the present invention. Any technical personnel in this field can make some changes or modify the technical contents disclosed above into equivalent embodiments without departing from the scope of the technical solution of the present invention. However, any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the present invention without departing from the content of the technical solution of the present invention still fall within the scope of the technical solution of the present invention.

Claims

1. A high voltage terminal structure, which is used to be arranged in a casing body, wherein the casing body has a front side and an inner side, wherein the front side and the inner side are located on opposite sides of the casing body; characterized in that: The high voltage terminal structure comprises: A first insulating member, which is disposed through the housing body, and the first insulating member has: a through hole penetrating through two opposite side surfaces of the first insulating member, thereby connecting the front side and the back side of the housing body; A second insulating member, which is disposed on the housing body and located on the inner side of the housing body, and is spaced apart from the first insulating member; the second insulating member has: an inner cylinder having two opposite ends, one of which faces the first insulating member; a passage penetrating through and communicating with the two opposite ends of the inner cylinder; an outer cylinder, which is sleeved on the inner cylinder and spaced apart from the inner cylinder; as well as a connecting portion, which is sealed and connected between the outer circumference of the inner tube and the inner circumference of the outer tube; and A conductive member is passed through and fixed to the other end of the inner tube facing away from the first insulating member.

2. The high voltage terminal structure according to claim 1, characterized in that: It also has: A fixing ring surrounds and is connected to the second insulating member, and the fixing ring is connected to the housing body, so that the second insulating member is fixed to the housing body.

3. The high voltage terminal structure according to claim 1 or 2, characterized in that: The connecting portion is located at one end of the outer tube close to the first insulating member.

4. The high voltage terminal structure according to claim 1 or 2, characterized in that: The first insulating member also has an inner side surface, which is located at the inner side of the housing body and faces a direction away from the outer side of the housing body; and An end surface of the inner cylinder facing the end portion of the first insulating member has a spacing distance from the inner side surface.

5. The high voltage terminal structure according to claim 4, characterized in that: The channel is formed with an insertion opening on the end surface, and the insertion opening is directly opposite to the through hole of the first insulating member.

6. A housing with a high voltage terminal structure, characterized in that: The housing with a high-voltage terminal structure comprises: a housing body having a front side and an inner side, wherein the front side and the inner side are located on opposite sides of the housing body; and A high voltage terminal structure, comprising: A first insulating member, which is disposed through the housing body, and the first insulating member has: a through hole penetrating through two opposite side surfaces of the first insulating member, thereby connecting the front side and the back side of the housing body; A second insulating member, which is disposed on the housing body and located on the inner side of the housing body, and is spaced apart from the first insulating member; the second insulating member has: an inner cylinder having two opposite ends, one of which faces the first insulating member; a passage penetrating through and communicating with the two opposite ends of the inner cylinder; an outer cylinder, which is sleeved on the inner cylinder and spaced apart from the inner cylinder; as well as a connecting portion, which is sealed and connected between the outer circumference of the inner tube and the inner circumference of the outer tube; and A conductive member is passed through and fixed to the other end of the inner tube facing away from the first insulating member.

7. The housing with a high voltage terminal structure according to claim 6, characterized in that: It also has: A connecting piece, which is connected to the side of the casing body facing the inner side, the connecting piece is a plate and has a groove, and the groove is recessed in the direction away from the casing body; the second insulating piece of the high-voltage terminal structure is fixedly connected to the connecting piece, and there is a spacing distance between the part of the second insulating piece located in the groove and the casing body.

8. The housing with a high voltage terminal structure according to claim 7, characterized in that: The high-voltage terminal structure is disposed through the connecting piece, and the high-voltage terminal structure further comprises: A fixing ring surrounds and is connected to the second insulating member, and the fixing ring is connected to the connecting member.

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