CN212485799U - Open-type contact box and contact box assembly - Google Patents
Open-type contact box and contact box assembly Download PDFInfo
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- CN212485799U CN212485799U CN202020969317.7U CN202020969317U CN212485799U CN 212485799 U CN212485799 U CN 212485799U CN 202020969317 U CN202020969317 U CN 202020969317U CN 212485799 U CN212485799 U CN 212485799U
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Abstract
The utility model relates to an open-type contact box and a contact box component, the open-type contact box comprises a box body, the box body is provided with a wire inlet communicated with the inner cavity of the box body, the box body is also provided with an exposed mounting end, the mounting end is provided with a wire outlet communicated with the inner cavity of the box body and used for inserting a static contact, the mounting end is provided with a supporting bulge which is arranged in a relatively convex way and is used for supporting a wire outlet bus bar or a static contact, the mounting end is also provided with a concave heat dissipation channel which is arranged in a relatively concave way and is used for corresponding to the wire outlet bus bar or the static contact supported on the supporting bulge to dissipate heat, the inner end and the outer end of the concave heat dissipation channel are both open ends, and the inner end extends to the wall of the wire outlet, so that the wire outlet is communicated with the external environment of the contact box through the concave, thereby effectively improving the temperature rise condition in the inner cavity of the box body.
Description
Technical Field
The utility model relates to an electrical apparatus insulating part field, concretely relates to open-type contact box and contact box subassembly.
Background
The contact box is used as an insulating part for insulation protection and connection transition in the switch cabinet, has the functions of installing a contact arm, a plum blossom contact, a copper bar and a static contact of the circuit breaker and plays a role in insulation protection.
The existing plum blossom contact and the fixed contact are in sliding connection, the resistance is large, and the heating is serious during normal operation. And the contact box structure is more closed, only relies on the narrow and small gap of copper bar exit to dispel the heat, causes the inside heat of contact box to concentrate, can't better more fast dispel away. When the contact box is applied to a switch cabinet, once the temperature rise value inside the contact box exceeds 65K specified by the national standard, the normal operation of the switch cabinet is influenced. Meanwhile, the contact box has high long-term operation temperature, the aging speed of the insulating material is accelerated, the insulating capability is reduced, and the service life of the contact box is shortened.
The patent document of the Chinese utility model with the publication number of CN203774668U and publication date of 2014.08.13 discloses a contact box, which comprises a wire inlet, a wire outlet and a barrel body for connecting the wire inlet and the wire outlet. The contact box is provided with a plurality of static contact mounting holes on a flange of a wire outlet and is used for being fixedly connected with a bus static contact, the copper bar is connected with the bus static contact on the outer side of the cylinder, a connecting part of the static contact and the copper bar is exposed, and a certain heat dissipation effect is improved compared with the traditional contact box which is connected in an inner cavity.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide an open-type contact box to be used for installing the terminal surface of arranging and the static contact among the solution prior art on the contact box and lead to the not good technical problem of laminating installation back radiating effect for planar structure. The utility model also provides an use the contact box subassembly of above-mentioned contact box to be used for installing the terminal surface of arranging and the static contact among the solution prior art on the contact box and lead to the not good technical problem of laminating installation back radiating effect for planar structure.
In order to achieve the purpose, the technical scheme of the open-type contact box provided by the utility model is as follows: an open contact box comprises a box body with an inner cavity, wherein the box body is provided with a wire inlet which is communicated with the inner cavity of the box body so that a corresponding moving contact can be inserted into the inner cavity of the box body, the box body is also provided with an exposed mounting end for mounting a wire outlet bus bar and a static contact, the mounting end is provided with a wire outlet hole which is communicated with the inner cavity of the box body and is used for inserting the static contact, the mounting end is provided with a supporting bulge which is arranged relatively upwards and is used for supporting the outgoing line busbar or the static contact, the mounting end is also provided with a concave heat dissipation channel which is arranged relatively concave and is used for corresponding to the outgoing line busbar or the static contact supported on the supporting protrusion so as to dissipate heat of the outgoing line busbar or the static contact, the inner end and the outer end of the concave heat dissipation channel are both open ends, and the inner end extends to the hole wall of the wire outlet hole so that the wire outlet hole is communicated with the external environment of the contact box through the concave heat dissipation channel.
Has the advantages that: the utility model provides an among the open-type contact box, the installation end of contact box is for exposing the structure, when will be qualified for the next round of competitions female arranging and the static contact is installed in installation end department, it exposes with one side that deviates from the installation end of static contact to be qualified for the next round of competitions female arranging, can obtain better radiating effect, moreover, set up the support arch and the recessed heat dissipation channel of mutual disposition at the installation end, utilize the support arch to support female arranging or the static contact of being qualified for the next round of competitions, utilize and support female arranging or the recessed heat dissipation channel that the static contact corresponds of being qualified for the next round of competitions. And because the inner and outer both ends of recessed heat dissipation channel are the open end, and the inner extends to on the pore wall of corresponding wire hole, utilize recessed heat dissipation channel with wire hole and contact box external environment intercommunication, can further improve the radiating effect of inserting the static contact of joining in marriage in the wire hole like this, and then can effectively improve the temperature rise condition in the box body inner chamber.
And as the optimization of the extending direction of the concave heat dissipation channel of the open-type contact box, the concave heat dissipation channel extends along the radial direction of the wire outlet hole.
The concave heat dissipation channel is in a fan-shaped structure and is used for optimizing the concave heat dissipation channel of the open-type contact box, wherein the concave heat dissipation channel extends along the radial direction of the wire outlet hole. The concave heat dissipation channel with the sector structure can further optimize the stress uniformity of the mounting end under the condition of ensuring ventilation and heat dissipation.
Based on the scheme of each open-type contact box, the number of the concave heat dissipation channels serving as the contact box is optimized, and at least two concave heat dissipation channels are distributed at intervals along the circumferential direction of the wire outlet hole. More than two concave heat dissipation channels are arranged along the circumferential direction of the wire outlet hole, so that the heat dissipation effect can be improved.
Based on the scheme of each open-type contact box, the support protrusions in the contact box are optimized, at least two support protrusions are distributed at intervals along the circumferential direction of the wire outlet hole, and one concave heat dissipation channel is formed between any two adjacent support protrusions. And a concave heat dissipation channel is formed by utilizing two adjacent supporting bulges, so that the concave heat dissipation channel is convenient to form.
Based on the scheme of each open-type contact box, the molding mode of the support protrusions and the concave heat dissipation channels in the contact box is optimized, and the support protrusions, the concave heat dissipation channels and the box body are molded in an integrated pouring mode.
Based on the above-mentioned open-type contact box schemes, as the optimization of the way of installing the outgoing line busbar or the static contact in the contact box, the installation end is provided with a thread fastening installation structure for installing the outgoing line busbar or the static contact supported on the supporting protrusion at the installation end, and the thread fastening installation structure is provided with the supporting protrusion.
As further optimization of the thread fastening installation structure, the thread fastening installation structure is a nut insert, and the nut insert is fixedly arranged on the box body in a pouring mode.
Based on the scheme of each open-type contact box, the structure of the installation end of the contact box is optimized, one side of the installation end of the box body is a bus bar outgoing line side for leading out the outgoing line bus bar, and a semi-surrounded insulation section extending along the circumferential direction of the outgoing line hole is arranged at the other side of the installation end of the box body in a protruding mode relative to the bus bar outgoing line side and used for forming insulation protection on the outgoing line bus bar. The semi-surrounding insulation section is utilized to realize the insulation protection of the outgoing line busbar, and meanwhile, the exposed heat dissipation of the outgoing line busbar is not influenced.
Based on the above scheme of the open-type contact box, the structure of the box body serving as the contact box is optimized, the box body is a barrel body, one end of the barrel body is a wire inlet end, the other end of the barrel body is the installation end, an opening of the wire inlet end forms the wire inlet, an umbrella skirt section extending from the installation end in the direction towards the wire inlet end is arranged on the outer surface of the barrel body, and the umbrella skirt section comprises a plurality of umbrella skirts alternately arranged in size. The umbrella skirt with the alternated sizes is arranged, so that the creepage distance of the outer surface of the cylinder body can be increased, the insulating property is improved, and the length of the umbrella skirt section can be set according to the actual use condition.
The utility model provides a technical scheme of contact box subassembly is: the contact box assembly comprises a contact box, an outgoing line busbar and a static contact, wherein the contact box comprises a box body with an inner cavity, the box body is provided with a line inlet, the line inlet is communicated with the inner cavity of the box body so that the dynamic contact can be inserted into the inner cavity of the box body, the box body is also provided with a mounting end for mounting the outgoing line busbar and the static contact, the mounting end is provided with a line outlet hole which is communicated with the inner cavity of the box body and is used for inserting the static contact, the mounting end is provided with a supporting bulge which is arranged relatively upwards, the supporting bulge supports the outgoing line busbar and/or the static contact, the mounting end is also provided with a concave heat dissipation channel which is arranged relatively concave, the concave heat dissipation channel corresponds to the outgoing line busbar and/or the static contact which are supported on the supporting protrusion for heat dissipation, the inner end and the outer end of the concave heat dissipation channel are both open ends, and the inner end extends to the hole wall of the wire outlet hole so that the wire outlet hole is communicated with the external environment of the contact box through the concave heat dissipation channel.
Has the advantages that: the utility model provides an among the contact box subassembly, the installation end of contact box is for exposing the structure, when will be qualified for the next round of competitions female arranging and the static contact is installed in installation end department, it exposes with one side that deviates from the installation end of static contact to be qualified for the next round of competitions female arranging, can obtain better radiating effect, moreover, set up the support arch and the recessed heat dissipation channel of mutual disposition at the installation end, utilize the support arch to support female arranging or the static contact of being qualified for the next round of competitions, utilize and support female arranging or the recessed heat dissipation channel that the static contact corresponds of being qualified for the next round of competitions protruding. And because the inner and outer both ends of recessed heat dissipation channel are the open end, and the inner extends to on the pore wall of corresponding wire hole, utilize recessed heat dissipation channel with wire hole and contact box external environment intercommunication, can further improve the radiating effect of inserting the static contact of joining in marriage in the wire hole like this, and then can effectively improve the temperature rise condition in the box body inner chamber.
As the optimization of the extension direction of the concave heat dissipation channel of the contact box in the contact box assembly, the concave heat dissipation channel extends along the radial direction of the wire outlet hole.
The concave heat dissipation channel is in a fan-shaped structure and is used for optimizing the concave heat dissipation channel of the contact box in the contact box assembly, wherein the concave heat dissipation channel extends along the radial direction of the wire outlet hole. The concave heat dissipation channel with the sector structure can further optimize the stress uniformity of the mounting end under the condition of ensuring ventilation and heat dissipation.
Based on the above scheme of each contact box assembly, the number of the concave heat dissipation channels serving as the contact box is optimized, and at least two concave heat dissipation channels are distributed at intervals along the circumferential direction of the wire outlet hole. More than two concave heat dissipation channels are arranged along the circumferential direction of the wire outlet hole, so that the heat dissipation effect can be improved.
Based on the above scheme of each contact box assembly, as the optimization of the support protrusions in the contact box, at least two support protrusions are distributed at intervals along the circumferential direction of the wire outlet hole, and one concave heat dissipation channel is formed between any two adjacent support protrusions. And a concave heat dissipation channel is formed by utilizing two adjacent supporting bulges, so that the concave heat dissipation channel is convenient to form.
Based on the above technical scheme of each contact box assembly, the molding mode of the support protrusions and the concave heat dissipation channels in the contact box is optimized, and the support protrusions, the concave heat dissipation channels and the box body are integrally molded by casting.
Based on the above scheme of each contact box assembly, as the optimization of the mode of installing the outgoing line busbar or the static contact in the contact box, the installation end is provided with a thread fastening installation structure for installing the outgoing line busbar or the static contact supported on the supporting protrusion at the installation end, and the supporting protrusion is arranged at the thread fastening installation structure.
As further optimization of the thread fastening installation structure, the thread fastening installation structure is a nut insert, and the nut insert is fixedly arranged on the box body in a pouring mode.
Based on each above-mentioned contact box subassembly scheme, as the configuration optimization of the installation end of contact box, one side of the installation end of box body is for supplying female arranging that is drawn forth of being qualified for the next round of competitions is qualified for the next round of competitions the side of being qualified for the next round of competitions, the installation end of box body has been arranged in the opposite side protrusion for female arranging side of being qualified for the next round of competitions has along the semi-surrounding insulation section that wire hole circumference extends for female arranging of being qualified for the next. The semi-surrounding insulation section is utilized to realize the insulation protection of the outgoing line busbar, and meanwhile, the exposed heat dissipation of the outgoing line busbar is not influenced.
Based on each above-mentioned contact box subassembly scheme, as the configuration optimization of the box body of contact box, the box body is the barrel, and the one end of barrel is the inlet wire end, and the other end is the installation end, the opening of inlet wire end forms the inlet wire mouth, the surface department of barrel has the follow the installation end is along the orientation the full skirt section that the inlet wire end direction extends the arrangement, and the full skirt section includes a plurality of full skirts that the size was arranged in turn. The umbrella skirt with the alternated sizes is arranged, so that the creepage distance of the outer surface of the cylinder body can be increased, the insulating property is improved, and the length of the umbrella skirt section can be set according to the actual use condition.
Drawings
FIG. 1 is a schematic diagram of an embodiment of a contact box assembly using an open contact box according to the present invention;
FIG. 2 is a schematic view of the contact box of FIG. 1;
FIG. 3 is a top view of the contact box of FIG. 2;
FIG. 4 is a cross-sectional view taken along line B-B of FIG. 3;
description of reference numerals: 1-box body; 2, static contact; 3-moving contact; 4-a wire outlet bus bar; 5-semi-surrounding the insulating section; 6-umbrella skirt; 8-a flange; 9-wire outlet holes; 10-wire inlet; 11-a support protrusion; 12-recessed heat sink channel; 13-nut inserts; 14-insert.
Detailed Description
The following describes embodiments of the present invention with reference to the accompanying drawings.
The utility model provides a specific embodiment of contact box subassembly, as shown in fig. 1 to fig. 4, contact box subassembly in this embodiment includes the contact box, be qualified for the next round of competitions female arranging 4 and static contact 2, and is specific, be qualified for the next round of competitions female arranging 4 and static contact 2 fixed assembly together to fixed mounting is in the installation end of contact box, when the contact box subassembly is used in the cubical switchboard, moving contact 3 gets into in the box inner chamber of contact box from the inlet 10 of contact box, and with the electrically conductive grafting cooperation of static contact 2.
The contact box in the embodiment comprises a box body 1, the box body 1 is provided with an inner cavity, the box body 1 is of a barrel structure on the whole, one end of the box body 1 is a wire inlet end, the wire inlet end is provided with a wire inlet 10, a moving contact 3 is inserted into the inner cavity of the box body when the contact box is applied to a switch cabinet, the other end of the box body 1 is an installation end, the installation end is exposed to be used for installing a corresponding wire outlet busbar 4 and a corresponding fixed contact 2 at the installation end, a wire outlet 9 is arranged on the installation end, the wire outlet 9 is communicated with the inner cavity of the box body to be used for inserting the fixed contact 2, and conductive connection of the corresponding fixed contact 2.
The mounting end of the box body is used for fixedly mounting the outgoing line busbar 4 and the static contact 2, one end of the mounting end is the outgoing line side of the busbar led out by the outgoing line busbar 4, in order to improve the insulation protection of the outgoing line busbar, a semi-surrounding insulation section 5 is arranged on the other side of the mounting end, opposite to the bus outgoing line side, in a protruding mode, the semi-surrounding insulation section 5 extends along the circumferential direction of the outgoing line hole, and therefore the semi-surrounding insulation section 5 is used for forming insulation protection of the outgoing line busbar 4. The semi-surrounding insulation section 5 is matched with the exposed installation end, so that the heat dissipation of the outgoing line busbar can be ensured under the condition of ensuring effective insulation protection.
The semi-surrounding insulation section 5 is an arc-shaped structure, and can be designed into a semicircular structure in consideration of heat dissipation and insulation protection.
In this embodiment, the outlet busbar 4 and the static contact 2 are fixedly mounted at the mounting end of the box body 1, during assembly, the static contact 2 and the outlet busbar 4 can be fixedly assembled together, and the outlet busbar 4 is fixedly connected with the contact box 2, so that a static contact insert arranged in the contact box can be omitted.
Specifically, the mounting end is provided with a supporting protrusion 11 protruding upwards relatively, the supporting protrusion 11 is used for supporting a corresponding outgoing line busbar 4, and the supporting protrusion 11 is three along the circumferential interval distribution of the outgoing line hole 9, so that a concave heat dissipation channel 12 is formed between any two adjacent supporting protrusions 11, the concave heat dissipation channel 12 is arranged concave-downwards relative to the supporting protrusion 11, and the concave heat dissipation channel 12 at the position can correspond to the lower side surface of the outgoing line busbar 4 arranged on the supporting protrusion 11 so as to dissipate heat of the outgoing line busbar 4.
Moreover, the inner end and the outer end of the concave heat dissipation channel 12 are open ends, and the inner end extends to the hole wall of the wire outlet hole 9, so that the wire outlet hole 9 is communicated with the external environment of the contact box through the concave heat dissipation channel 12, the heat dissipation effect of the static contact 2 is improved, and the heat dissipation performance of the contact box is further effectively improved.
In order to facilitate manufacturing and forming, the supporting protrusions 11, the concave heat dissipation channel 12 and the box body 1 are integrally cast and formed without subsequent processing, and the box body is made of flame-retardant V0-grade flame-retardant materials, so that the requirement of national grid companies on the flame-retardant performance of the insulating part is met, and the use safety and the service life of the contact box are improved.
In order to balance the internal force of the contact box, each supporting protrusion 11 and each concave heat dissipation channel 12 extend along the radial direction of the wire outlet hole 9, and both are of fan-shaped structures on the whole, namely, the closer to the center of the wire outlet hole, the shorter the arc length.
For the tight installation female arranging 4 of being qualified for the next round of competitions, be equipped with screw fastening mounting structure at the installation end, screw fastening mounting structure department is equipped with foretell support protrusion respectively, and screw fastening mounting structure specifically is nut insert 13, and the integrative pouring of nut insert is fixed in the support protrusion.
In addition, as shown in fig. 1 and 2, the box body 1 has a shed section extending from the mounting end in the direction toward the line inlet end at the outer surface thereof, and the shed section includes a plurality of sheds 6 arranged alternately in size. Set up the creep distance that the umbrella skirt 6 of size alternative can increase 1 surface of barrel, improve insulating properties to can set up the umbrella skirt section length according to the in-service use condition. For example, the length of the cylinder 1 of the contact box in this embodiment is long, and the shed section does not need to extend to the end of the wire inlet, so long as the requirement for insulation and isolation is met, thereby reducing the cost. In other embodiments, however, under the condition that the length of the cylinder of the contact box is short or the requirement on the insulation isolation performance is high, the shed section may be arranged on the outer surface of the whole contact box. In other embodiments, the shape and size of the sheds on the shed segments may be the same.
As shown in fig. 1 to 4, in the present embodiment, the box body 1 is provided with a square flange 8 at one side of the incoming line end, and the four corners of the flange 8 are provided with inserts 14 for mounting the fixed contact box.
In the contact box assembly provided by the embodiment, the fixed contact 2 and the outgoing line busbar 4 are fastened and assembled together, as shown in fig. 3, the outgoing line busbar 4 is fixed at the mounting end of the box body 1, the fixed contact 2 is correspondingly inserted into the outgoing line hole 9, the outgoing line busbar 4 is radiated through the concave radiating channel 12, meanwhile, an inner end opening of the concave radiating channel 12 is communicated with the outgoing line hole 9, the outgoing line hole 9 and the external environment of the contact box can be communicated, the radiation of the inner cavity of the contact box is realized through the outgoing line hole 9, and the radiation performance of the whole contact box is improved.
In this embodiment, the outgoing busbar 4 is supported on the corresponding supporting protrusion 12, and the static contact 2 is fixedly assembled on the outgoing busbar 4 and is inserted into the outgoing line hole 9, at this time, the mounting structure can be fastened only by using the threads on the outgoing line side of the bus, that is, only 2 nut inserts shown in fig. 2 are used.
In other embodiments, the structure of the static contact may also be changed, so that a part of the static contact is supported on the corresponding supporting protrusion, in order to ensure the stress balance, a connecting flange may be disposed at a corresponding end of the static contact, the connecting flange extends along the circumferential direction, when the static contact with such a structure is fixed at the installation end, 5 nut inserts shown in fig. 2 may be used, at this time, the outlet busbar is fixedly assembled with the static contact, and then the static contact is fixedly assembled with the contact box. Of course, the outlet busbar and the static contact can also be fixedly assembled together by using the fastening bolt fastened and connected with the contact box, the fastening bolt is used for realizing the fixed assembly of the outlet busbar and the static contact, and the static contact and the outlet busbar are also fixedly installed on the contact box.
In this embodiment, the concave heat dissipation channel extends along the radial direction of the wire outlet hole, and in other embodiments, the concave heat dissipation channel may be a bent structure, but such a structure may affect ventilation and heat dissipation.
In this embodiment, the recessed heat dissipating channel has a fan-shaped structure, and in other embodiments, the recessed heat dissipating channel may be rectangular as a whole.
In this embodiment, the concave heat dissipation channel is formed by two adjacent supporting protrusions, and a surface supporting manner is adopted. In other embodiments, a point support structure may also be adopted, for example, a plurality of support columns are sequentially arranged in the relatively concave heat dissipation channel along the circumferential direction of the outlet hole, and nut inserts are respectively arranged on the support columns to support and fix the outlet busbar or the static contact.
In the embodiment, three supporting protrusions are distributed at intervals along the circumferential direction of the wire outlet hole, in other embodiments, two or more supporting protrusions can be arranged, the positions, the shapes and the sizes of the supporting protrusions can be determined according to the wire outlet busbar or the static contact which needs to be supported, and normal supporting and installation can be met.
In this embodiment, the supporting protrusions and the concave heat dissipation channels are integrally cast with the box body, and in other embodiments, the supporting protrusions can also be fixedly mounted on the box body by using screw fasteners.
In this embodiment, a semi-surrounding insulating section is arranged on one side of the mounting end of the box body to form insulating protection, and in other embodiments, the semi-surrounding insulating section can be omitted.
The utility model provides an embodiment of open-type contact box, the structure of contact box in this embodiment is as shown in FIG. 2 to FIG. 4, including box body 1, the installation end of box body has corresponding support protrusion, recessed radiating channel and semi-surrounding insulation section, and the box body periphery sets up corresponding full skirt section, sets up the flange at the inlet wire end of box body, and the concrete structure of contact box is the same with the contact box structure in the above-mentioned contact box subassembly embodiment, no longer gives unnecessary details here.
Claims (10)
1. An open contact box comprises a box body with an inner cavity,
the box body is provided with a wire inlet which is communicated with the inner cavity of the box body so as to allow the corresponding moving contact to be inserted into the inner cavity of the box body,
the box body is also provided with an exposed mounting end for mounting the outlet busbar and the static contact, the mounting end is provided with an outlet hole which is communicated with the inner cavity of the box body and is used for inserting the static contact,
the method is characterized in that: the mounting end is provided with a supporting bulge which is arranged relatively upwards and is used for supporting the outgoing line busbar or the static contact,
the mounting end is also provided with a concave heat dissipation channel which is arranged relatively to the concave, the concave heat dissipation channel is used for corresponding to the outgoing line busbar or the static contact supported on the supporting bulge so as to dissipate heat of the outgoing line busbar or the static contact,
the inner end and the outer end of the concave heat dissipation channel are both open ends, and the inner end of the concave heat dissipation channel extends to the hole wall of the wire outlet hole, so that the wire outlet hole is communicated with the external environment of the contact box through the concave heat dissipation channel.
2. The open contact box of claim 1, wherein: the concave heat dissipation channel extends along the radial direction of the wire outlet hole.
3. The open contact box of claim 2, wherein: the concave heat dissipation channel is of a fan-shaped structure.
4. The open contact box of claim 1, 2 or 3, wherein: at least two concave heat dissipation channels are distributed at intervals along the circumferential direction of the wire outlet hole.
5. The open contact box of claim 1, 2 or 3, wherein: at least two supporting bulges are distributed at intervals along the circumferential direction of the wire outlet hole, and a concave heat dissipation channel is formed between any two adjacent supporting bulges.
6. The open contact box of claim 1, 2 or 3, wherein: the supporting protrusions, the concave heat dissipation channel and the box body are integrally cast and molded.
7. The open contact box of claim 1, 2 or 3, wherein: the mounting end is provided with a thread fastening mounting structure for mounting the outgoing line busbar or the static contact supported on the supporting protrusion on the mounting end, and the supporting protrusion is arranged at the thread fastening mounting structure.
8. The open contact box of claim 1, 2 or 3, wherein: one side of the mounting end of the box body is a bus bar outgoing line side for leading out the outgoing bus bar, and a semi-surrounded insulating section extending along the circumferential direction of the outgoing line hole is arranged at the other side of the mounting end of the box body in a protruding mode relative to the bus outgoing line side and used for forming insulating protection on the outgoing bus bar.
9. The open contact box of claim 1, 2 or 3, wherein: the box body is a cylinder, one end of the cylinder is a wire inlet end, the other end of the cylinder is the mounting end, an opening of the wire inlet end forms the wire inlet, an umbrella skirt section extending from the mounting end along the direction of the wire inlet end is arranged on the outer surface of the cylinder, and the umbrella skirt section comprises a plurality of umbrella skirts alternately arranged in size.
10. The utility model provides a contact box subassembly, includes contact box, static contact and female arranging of being qualified for the next round of competitions, its characterized in that: the contact box adopts the contact box of any one of claims 1 to 9, the outgoing line busbar and the static contact are mounted at the mounting end of the contact box, the outgoing line busbar or the static contact is in supporting fit with the supporting protrusion at the mounting end of the contact box, and the static contact is inserted in the outgoing line hole of the contact box.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020969317.7U CN212485799U (en) | 2020-06-01 | 2020-06-01 | Open-type contact box and contact box assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020969317.7U CN212485799U (en) | 2020-06-01 | 2020-06-01 | Open-type contact box and contact box assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212485799U true CN212485799U (en) | 2021-02-05 |
Family
ID=74446504
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020969317.7U Active CN212485799U (en) | 2020-06-01 | 2020-06-01 | Open-type contact box and contact box assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212485799U (en) |
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2020
- 2020-06-01 CN CN202020969317.7U patent/CN212485799U/en active Active
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